diff options
| author | Paul Mackerras <paulus@samba.org> | 2007-05-08 13:37:51 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-05-08 13:37:51 +1000 |
| commit | 02bbc0f09c90cefdb2837605c96a66c5ce4ba2e1 (patch) | |
| tree | 04ef573cd4de095c500c9fc3477f4278c0b36300 /arch | |
| parent | 7487a2245b8841c77ba9db406cf99a483b9334e9 (diff) | |
| parent | 5b94f675f57e4ff16c8fda09088d7480a84dcd91 (diff) | |
| download | op-kernel-dev-02bbc0f09c90cefdb2837605c96a66c5ce4ba2e1.zip op-kernel-dev-02bbc0f09c90cefdb2837605c96a66c5ce4ba2e1.tar.gz | |
Merge branch 'linux-2.6'
Diffstat (limited to 'arch')
739 files changed, 49128 insertions, 16359 deletions
diff --git a/arch/alpha/boot/bootpz.c b/arch/alpha/boot/bootpz.c index 4307bde..1036b51 100644 --- a/arch/alpha/boot/bootpz.c +++ b/arch/alpha/boot/bootpz.c @@ -467,3 +467,9 @@ start_kernel(void) #endif runkernel(); } + + /* dummy function, should never be called. */ +void *__kmalloc(size_t size, gfp_t flags) +{ + return (void *)NULL; +} diff --git a/arch/alpha/boot/misc.c b/arch/alpha/boot/misc.c index 1d65adf..c00646b 100644 --- a/arch/alpha/boot/misc.c +++ b/arch/alpha/boot/misc.c @@ -98,7 +98,7 @@ extern int end; static ulg free_mem_ptr; static ulg free_mem_ptr_end; -#define HEAP_SIZE 0x2000 +#define HEAP_SIZE 0x3000 #include "../../../lib/inflate.c" diff --git a/arch/alpha/boot/tools/objstrip.c b/arch/alpha/boot/tools/objstrip.c index 67beb1b..96154e7 100644 --- a/arch/alpha/boot/tools/objstrip.c +++ b/arch/alpha/boot/tools/objstrip.c @@ -25,7 +25,6 @@ #include <linux/a.out.h> #include <linux/coff.h> #include <linux/param.h> -#include <linux/string.h> #ifdef __ELF__ # include <linux/elf.h> #endif diff --git a/arch/alpha/kernel/err_common.c b/arch/alpha/kernel/err_common.c index 687580b..13d53b1 100644 --- a/arch/alpha/kernel/err_common.c +++ b/arch/alpha/kernel/err_common.c @@ -7,7 +7,6 @@ */ #include <linux/init.h> -#include <linux/pci.h> #include <linux/sched.h> #include <asm/io.h> diff --git a/arch/alpha/kernel/err_ev6.c b/arch/alpha/kernel/err_ev6.c index 69b5f4e..11aee01 100644 --- a/arch/alpha/kernel/err_ev6.c +++ b/arch/alpha/kernel/err_ev6.c @@ -7,7 +7,6 @@ */ #include <linux/init.h> -#include <linux/pci.h> #include <linux/sched.h> #include <asm/io.h> diff --git a/arch/alpha/kernel/err_ev7.c b/arch/alpha/kernel/err_ev7.c index 95463ab..bc799f7 100644 --- a/arch/alpha/kernel/err_ev7.c +++ b/arch/alpha/kernel/err_ev7.c @@ -7,7 +7,6 @@ */ #include <linux/init.h> -#include <linux/pci.h> #include <linux/sched.h> #include <asm/io.h> diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index be133f1..ea405f5 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -93,7 +93,6 @@ osf_set_program_attributes(unsigned long text_start, unsigned long text_len, * offset differences aren't the same as "d_reclen"). */ #define NAME_OFFSET offsetof (struct osf_dirent, d_name) -#define ROUND_UP(x) (((x)+3) & ~3) struct osf_dirent { unsigned int d_ino; @@ -115,7 +114,7 @@ osf_filldir(void *__buf, const char *name, int namlen, loff_t offset, { struct osf_dirent __user *dirent; struct osf_dirent_callback *buf = (struct osf_dirent_callback *) __buf; - unsigned int reclen = ROUND_UP(NAME_OFFSET + namlen + 1); + unsigned int reclen = ALIGN(NAME_OFFSET + namlen + 1, sizeof(u32)); unsigned int d_ino; buf->error = -EINVAL; /* only used if we fail */ @@ -174,7 +173,6 @@ osf_getdirentries(unsigned int fd, struct osf_dirent __user *dirent, return error; } -#undef ROUND_UP #undef NAME_OFFSET asmlinkage unsigned long @@ -1267,6 +1265,9 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, if (len > limit) return -ENOMEM; + if (flags & MAP_FIXED) + return addr; + /* First, see if the given suggestion fits. The OSF/1 loader (/sbin/loader) relies on us returning an diff --git a/arch/alpha/kernel/srmcons.c b/arch/alpha/kernel/srmcons.c index 7569232..85a821a 100644 --- a/arch/alpha/kernel/srmcons.c +++ b/arch/alpha/kernel/srmcons.c @@ -164,9 +164,9 @@ srmcons_get_private_struct(struct srmcons_private **ps) int retval = 0; if (srmconsp == NULL) { + srmconsp = kmalloc(sizeof(*srmconsp), GFP_KERNEL); spin_lock_irqsave(&srmconsp_lock, flags); - srmconsp = kmalloc(sizeof(*srmconsp), GFP_KERNEL); if (srmconsp == NULL) retval = -ENOMEM; else { diff --git a/arch/alpha/kernel/vmlinux.lds.S b/arch/alpha/kernel/vmlinux.lds.S index 4cc44bd..cf1e6fc 100644 --- a/arch/alpha/kernel/vmlinux.lds.S +++ b/arch/alpha/kernel/vmlinux.lds.S @@ -69,7 +69,7 @@ SECTIONS . = ALIGN(8); SECURITY_INIT - . = ALIGN(64); + . = ALIGN(8192); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index e7baca2..0d8fac3 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -29,6 +29,10 @@ config GENERIC_TIME bool default n +config GENERIC_CLOCKEVENTS + bool + default n + config MMU bool default y @@ -67,6 +71,14 @@ config GENERIC_HARDIRQS bool default y +config STACKTRACE_SUPPORT + bool + default y + +config LOCKDEP_SUPPORT + bool + default y + config TRACE_IRQFLAGS_SUPPORT bool default y @@ -162,6 +174,8 @@ config ARCH_VERSATILE select ARM_AMBA select ARM_VIC select ICST307 + select GENERIC_TIME + select GENERIC_CLOCKEVENTS help This enables support for ARM Ltd Versatile board. @@ -255,6 +269,7 @@ config ARCH_IOP13XX depends on MMU select PLAT_IOP select PCI + select ARCH_SUPPORTS_MSI help Support for Intel's IOP13XX (XScale) family of processors. @@ -262,6 +277,7 @@ config ARCH_IXP4XX bool "IXP4xx-based" depends on MMU select GENERIC_TIME + select GENERIC_CLOCKEVENTS help Support for Intel's IXP4XX (XScale) family of processors. @@ -363,6 +379,7 @@ config ARCH_LH7A40X config ARCH_OMAP bool "TI OMAP" select GENERIC_GPIO + select GENERIC_TIME help Support for TI's OMAP platform (OMAP1 and OMAP2). @@ -513,6 +530,8 @@ endmenu menu "Kernel Features" +source "kernel/time/Kconfig" + config SMP bool "Symmetric Multi-Processing (EXPERIMENTAL)" depends on EXPERIMENTAL && REALVIEW_MPCORE @@ -572,6 +591,7 @@ config PREEMPT config NO_IDLE_HZ bool "Dynamic tick timer" + depends on !GENERIC_CLOCKEVENTS help Select this option if you want to disable continuous timer ticks and have them programmed to occur as required. This option saves @@ -669,6 +689,7 @@ config LEDS_TIMER bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ MACH_OMAP_H2 || MACH_OMAP_PERSEUS2 depends on LEDS + depends on !GENERIC_CLOCKEVENTS default y if ARCH_EBSA110 help If you say Y here, one of the system LEDs (the green one on the diff --git a/arch/arm/boot/compressed/head-at91rm9200.S b/arch/arm/boot/compressed/head-at91rm9200.S index d68b9ac..11782cc 100644 --- a/arch/arm/boot/compressed/head-at91rm9200.S +++ b/arch/arm/boot/compressed/head-at91rm9200.S @@ -61,6 +61,12 @@ cmp r7, r3 beq 99f + @ picotux 200 : 963 + mov r3, #(MACH_TYPE_PICOTUX2XX & 0xff) + orr r3, r3, #(MACH_TYPE_PICOTUX2XX & 0xff00) + cmp r7, r3 + beq 99f + @ Ajeco 1ARM : 1075 mov r3, #(MACH_TYPE_ONEARM & 0xff) orr r3, r3, #(MACH_TYPE_ONEARM & 0xff00) diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c index 283891c..9b44402 100644 --- a/arch/arm/boot/compressed/misc.c +++ b/arch/arm/boot/compressed/misc.c @@ -239,7 +239,7 @@ extern int end; static ulg free_mem_ptr; static ulg free_mem_ptr_end; -#define HEAP_SIZE 0x2000 +#define HEAP_SIZE 0x3000 #include "../../../../lib/inflate.c" diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index fe3f059..798bbfc 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -18,7 +18,6 @@ #include <linux/init.h> #include <linux/kernel.h> #include <linux/delay.h> -#include <linux/ptrace.h> #include <linux/errno.h> #include <linux/ioport.h> #include <linux/platform_device.h> diff --git a/arch/arm/common/via82c505.c b/arch/arm/common/via82c505.c index ba2e629..79a8206 100644 --- a/arch/arm/common/via82c505.c +++ b/arch/arm/common/via82c505.c @@ -1,6 +1,5 @@ #include <linux/kernel.h> #include <linux/pci.h> -#include <linux/ptrace.h> #include <linux/interrupt.h> #include <linux/mm.h> #include <linux/init.h> diff --git a/arch/arm/configs/ixp4xx_defconfig b/arch/arm/configs/ixp4xx_defconfig index fabf74c..db850a5 100644 --- a/arch/arm/configs/ixp4xx_defconfig +++ b/arch/arm/configs/ixp4xx_defconfig @@ -117,11 +117,13 @@ CONFIG_ARCH_ADI_COYOTE=y CONFIG_ARCH_IXDP425=y CONFIG_MACH_IXDPG425=y CONFIG_MACH_IXDP465=y +CONFIG_MACH_KIXRP435=y CONFIG_ARCH_IXCDP1100=y CONFIG_ARCH_PRPMC1100=y CONFIG_MACH_NAS100D=y CONFIG_ARCH_IXDP4XX=y CONFIG_CPU_IXP46X=y +CONFIG_CPU_IXP43X=y # CONFIG_MACH_GTWX5715 is not set # diff --git a/arch/arm/configs/picotux200_defconfig b/arch/arm/configs/picotux200_defconfig new file mode 100644 index 0000000..339c489 --- /dev/null +++ b/arch/arm/configs/picotux200_defconfig @@ -0,0 +1,1386 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.21-rc4 +# Wed Mar 28 16:19:50 2007 +# +CONFIG_ARM=y +CONFIG_SYS_SUPPORTS_APM_EMULATION=y +CONFIG_GENERIC_GPIO=y +# CONFIG_GENERIC_TIME is not set +CONFIG_MMU=y +# CONFIG_NO_IOPORT is not set +CONFIG_GENERIC_HARDIRQS=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y +CONFIG_HARDIRQS_SW_RESEND=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_ZONE_DMA=y +CONFIG_VECTORS_BASE=0xffff0000 +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +# CONFIG_IPC_NS is not set +CONFIG_SYSVIPC_SYSCTL=y +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set +# CONFIG_UTS_NS is not set +# CONFIG_AUDIT is not set +CONFIG_IKCONFIG=m +CONFIG_IKCONFIG_PROC=y +# CONFIG_SYSFS_DEPRECATED is not set +# CONFIG_RELAY is not set +# CONFIG_BLK_DEV_INITRD is not set +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_SYSCTL=y +CONFIG_EMBEDDED=y +CONFIG_UID16=y +CONFIG_SYSCTL_SYSCALL=y +# CONFIG_KALLSYMS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_EPOLL=y +CONFIG_SHMEM=y +CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y +CONFIG_RT_MUTEXES=y +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 +# CONFIG_SLOB is not set + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# Block layer +# +CONFIG_BLOCK=y +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +# CONFIG_IOSCHED_AS is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +# CONFIG_DEFAULT_AS is not set +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +CONFIG_DEFAULT_NOOP=y +CONFIG_DEFAULT_IOSCHED="noop" + +# +# System Type +# +# CONFIG_ARCH_AAEC2000 is not set +# CONFIG_ARCH_INTEGRATOR is not set +# CONFIG_ARCH_REALVIEW is not set +# CONFIG_ARCH_VERSATILE is not set +CONFIG_ARCH_AT91=y +# CONFIG_ARCH_CLPS7500 is not set +# CONFIG_ARCH_CLPS711X is not set +# CONFIG_ARCH_CO285 is not set +# CONFIG_ARCH_EBSA110 is not set +# CONFIG_ARCH_EP93XX is not set +# CONFIG_ARCH_FOOTBRIDGE is not set +# CONFIG_ARCH_NETX is not set +# CONFIG_ARCH_H720X is not set +# CONFIG_ARCH_IMX is not set +# CONFIG_ARCH_IOP32X is not set +# CONFIG_ARCH_IOP33X is not set +# CONFIG_ARCH_IOP13XX is not set +# CONFIG_ARCH_IXP4XX is not set +# CONFIG_ARCH_IXP2000 is not set +# CONFIG_ARCH_IXP23XX is not set +# CONFIG_ARCH_L7200 is not set +# CONFIG_ARCH_NS9XXX is not set +# CONFIG_ARCH_PNX4008 is not set +# CONFIG_ARCH_PXA is not set +# CONFIG_ARCH_RPC is not set +# CONFIG_ARCH_SA1100 is not set +# CONFIG_ARCH_S3C2410 is not set +# CONFIG_ARCH_SHARK is not set +# CONFIG_ARCH_LH7A40X is not set +# CONFIG_ARCH_OMAP is not set + +# +# Atmel AT91 System-on-Chip +# +CONFIG_ARCH_AT91RM9200=y +# CONFIG_ARCH_AT91SAM9260 is not set +# CONFIG_ARCH_AT91SAM9261 is not set +# CONFIG_ARCH_AT91SAM9263 is not set + +# +# AT91RM9200 Board Type +# +# CONFIG_MACH_ONEARM is not set +# CONFIG_ARCH_AT91RM9200DK is not set +# CONFIG_MACH_AT91RM9200EK is not set +# CONFIG_MACH_CSB337 is not set +# CONFIG_MACH_CSB637 is not set +# CONFIG_MACH_CARMEVA is not set +# CONFIG_MACH_ATEB9200 is not set +# CONFIG_MACH_KB9200 is not set +CONFIG_MACH_PICOTUX2XX=y +# CONFIG_MACH_KAFA is not set + +# +# AT91 Board Options +# + +# +# AT91 Feature Selections +# +CONFIG_AT91_PROGRAMMABLE_CLOCKS=y + +# +# Processor Type +# +CONFIG_CPU_32=y +CONFIG_CPU_ARM920T=y +CONFIG_CPU_32v4T=y +CONFIG_CPU_ABRT_EV4T=y +CONFIG_CPU_CACHE_V4WT=y +CONFIG_CPU_CACHE_VIVT=y +CONFIG_CPU_COPY_V4WB=y +CONFIG_CPU_TLB_V4WBI=y +CONFIG_CPU_CP15=y +CONFIG_CPU_CP15_MMU=y + +# +# Processor Features +# +CONFIG_ARM_THUMB=y +# CONFIG_CPU_ICACHE_DISABLE is not set +# CONFIG_CPU_DCACHE_DISABLE is not set +# CONFIG_CPU_DCACHE_WRITETHROUGH is not set +# CONFIG_OUTER_CACHE is not set + +# +# Bus support +# + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# Kernel Features +# +# CONFIG_PREEMPT is not set +CONFIG_NO_IDLE_HZ=y +CONFIG_HZ=100 +CONFIG_AEABI=y +CONFIG_OABI_COMPAT=y +# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4096 +# CONFIG_RESOURCES_64BIT is not set +CONFIG_ZONE_DMA_FLAG=1 +# CONFIG_LEDS is not set +CONFIG_ALIGNMENT_TRAP=y + +# +# Boot options +# +CONFIG_ZBOOT_ROM_TEXT=0x0 +CONFIG_ZBOOT_ROM_BSS=0x0 +CONFIG_CMDLINE="" +# CONFIG_XIP_KERNEL is not set +CONFIG_KEXEC=y + +# +# Floating point emulation +# + +# +# At least one emulation must be selected +# +CONFIG_FPE_NWFPE=y +# CONFIG_FPE_NWFPE_XP is not set +# CONFIG_FPE_FASTFPE is not set + +# +# Userspace binary formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_AOUT is not set +CONFIG_BINFMT_MISC=m + +# +# Power management options +# +# CONFIG_PM is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=m +CONFIG_PACKET_MMAP=y +CONFIG_UNIX=y +CONFIG_XFRM=y +CONFIG_XFRM_USER=m +# CONFIG_XFRM_SUB_POLICY is not set +# CONFIG_XFRM_MIGRATE is not set +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_PNP=y +# CONFIG_IP_PNP_DHCP is not set +CONFIG_IP_PNP_BOOTP=y +# CONFIG_IP_PNP_RARP is not set +CONFIG_NET_IPIP=m +CONFIG_NET_IPGRE=m +# CONFIG_ARPD is not set +# CONFIG_SYN_COOKIES is not set +CONFIG_INET_AH=m +CONFIG_INET_ESP=m +CONFIG_INET_IPCOMP=m +CONFIG_INET_XFRM_TUNNEL=m +CONFIG_INET_TUNNEL=m +CONFIG_INET_XFRM_MODE_TRANSPORT=m +CONFIG_INET_XFRM_MODE_TUNNEL=m +CONFIG_INET_XFRM_MODE_BEET=m +CONFIG_INET_DIAG=m +CONFIG_INET_TCP_DIAG=m +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_TCP_MD5SIG is not set +CONFIG_IPV6=m +CONFIG_IPV6_PRIVACY=y +CONFIG_IPV6_ROUTER_PREF=y +CONFIG_IPV6_ROUTE_INFO=y +CONFIG_INET6_AH=m +CONFIG_INET6_ESP=m +CONFIG_INET6_IPCOMP=m +CONFIG_IPV6_MIP6=y +CONFIG_INET6_XFRM_TUNNEL=m +CONFIG_INET6_TUNNEL=m +CONFIG_INET6_XFRM_MODE_TRANSPORT=m +CONFIG_INET6_XFRM_MODE_TUNNEL=m +CONFIG_INET6_XFRM_MODE_BEET=m +CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m +CONFIG_IPV6_SIT=m +CONFIG_IPV6_TUNNEL=m +# CONFIG_IPV6_MULTIPLE_TABLES is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +CONFIG_BRIDGE=m +CONFIG_VLAN_8021Q=m +# CONFIG_DECNET is not set +CONFIG_LLC=m +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +CONFIG_BT=m +CONFIG_BT_L2CAP=m +CONFIG_BT_SCO=m +CONFIG_BT_RFCOMM=m +CONFIG_BT_RFCOMM_TTY=y +CONFIG_BT_BNEP=m +CONFIG_BT_BNEP_MC_FILTER=y +CONFIG_BT_BNEP_PROTO_FILTER=y +CONFIG_BT_HIDP=m + +# +# Bluetooth device drivers +# +CONFIG_BT_HCIUSB=m +CONFIG_BT_HCIUSB_SCO=y +# CONFIG_BT_HCIUART is not set +# CONFIG_BT_HCIBCM203X is not set +# CONFIG_BT_HCIBPA10X is not set +# CONFIG_BT_HCIBFUSB is not set +# CONFIG_BT_HCIVHCI is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=m +# CONFIG_DEBUG_DRIVER is not set +# CONFIG_DEBUG_DEVRES is not set +# CONFIG_SYS_HYPERVISOR is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +CONFIG_MTD=y +# CONFIG_MTD_DEBUG is not set +# CONFIG_MTD_CONCAT is not set +CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_REDBOOT_PARTS is not set +CONFIG_MTD_CMDLINE_PARTS=y +# CONFIG_MTD_AFS_PARTS is not set + +# +# User Modules And Translation Layers +# +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLKDEVS=y +CONFIG_MTD_BLOCK=y +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set +# CONFIG_SSFDC is not set + +# +# RAM/ROM/Flash chip drivers +# +CONFIG_MTD_CFI=y +# CONFIG_MTD_JEDECPROBE is not set +CONFIG_MTD_GEN_PROBE=y +# CONFIG_MTD_CFI_ADV_OPTIONS is not set +CONFIG_MTD_MAP_BANK_WIDTH_1=y +CONFIG_MTD_MAP_BANK_WIDTH_2=y +CONFIG_MTD_MAP_BANK_WIDTH_4=y +# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set +CONFIG_MTD_CFI_I1=y +CONFIG_MTD_CFI_I2=y +# CONFIG_MTD_CFI_I4 is not set +# CONFIG_MTD_CFI_I8 is not set +# CONFIG_MTD_CFI_INTELEXT is not set +CONFIG_MTD_CFI_AMDSTD=y +# CONFIG_MTD_CFI_STAA is not set +CONFIG_MTD_CFI_UTIL=y +# CONFIG_MTD_RAM is not set +# CONFIG_MTD_ROM is not set +# CONFIG_MTD_ABSENT is not set +# CONFIG_MTD_OBSOLETE_CHIPS is not set + +# +# Mapping drivers for chip access +# +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +CONFIG_MTD_PHYSMAP=y +CONFIG_MTD_PHYSMAP_START=0x8000000 +CONFIG_MTD_PHYSMAP_LEN=0x0 +CONFIG_MTD_PHYSMAP_BANKWIDTH=2 +# CONFIG_MTD_ARM_INTEGRATOR is not set +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD is not set + +# +# Disk-On-Chip Device Drivers +# +# CONFIG_MTD_DOC2000 is not set +# CONFIG_MTD_DOC2001 is not set +# CONFIG_MTD_DOC2001PLUS is not set + +# +# NAND Flash Device Drivers +# +# CONFIG_MTD_NAND is not set + +# +# OneNAND Flash Device Drivers +# +# CONFIG_MTD_ONENAND is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# +# CONFIG_PNPACPI is not set + +# +# Block devices +# +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=m +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_UB is not set +# CONFIG_BLK_DEV_RAM is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=m +# CONFIG_SCSI_TGT is not set +# CONFIG_SCSI_NETLINK is not set +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=m +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +CONFIG_BLK_DEV_SR=m +CONFIG_BLK_DEV_SR_VENDOR=y +CONFIG_CHR_DEV_SG=m +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set +# CONFIG_SCSI_SCAN_ASYNC is not set + +# +# SCSI Transports +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set +# CONFIG_SCSI_SAS_LIBSAS is not set + +# +# SCSI low-level drivers +# +# CONFIG_ISCSI_TCP is not set +# CONFIG_SCSI_DEBUG is not set + +# +# Serial ATA (prod) and Parallel ATA (experimental) drivers +# +# CONFIG_ATA is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set + +# +# IEEE 1394 (FireWire) support +# + +# +# I2O device support +# + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +CONFIG_TUN=m + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +CONFIG_ARM_AT91_ETHER=y +# CONFIG_SMC91X is not set +# CONFIG_DM9000 is not set + +# +# Ethernet (1000 Mbit) +# + +# +# Ethernet (10000 Mbit) +# + +# +# Token Ring devices +# + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +CONFIG_PPP=m +# CONFIG_PPP_MULTILINK is not set +CONFIG_PPP_FILTER=y +CONFIG_PPP_ASYNC=m +# CONFIG_PPP_SYNC_TTY is not set +CONFIG_PPP_DEFLATE=m +CONFIG_PPP_BSDCOMP=m +CONFIG_PPP_MPPE=m +CONFIG_PPPOE=m +CONFIG_SLIP=m +CONFIG_SLIP_COMPRESSED=y +CONFIG_SLHC=m +CONFIG_SLIP_SMART=y +CONFIG_SLIP_MODE_SLIP6=y +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Input device support +# +CONFIG_INPUT=y +# CONFIG_INPUT_FF_MEMLESS is not set + +# +# Userland interfaces +# +# CONFIG_INPUT_MOUSEDEV is not set +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_ATMEL=y +CONFIG_SERIAL_ATMEL_CONSOLE=y +# CONFIG_SERIAL_ATMEL_TTYAT is not set +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +CONFIG_UNIX98_PTYS=y +# CONFIG_LEGACY_PTYS is not set + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +CONFIG_WATCHDOG=y +CONFIG_WATCHDOG_NOWAYOUT=y + +# +# Watchdog Device Drivers +# +# CONFIG_SOFT_WATCHDOG is not set +CONFIG_AT91RM9200_WATCHDOG=m + +# +# USB-based Watchdog Cards +# +# CONFIG_USBPCWATCHDOG is not set +CONFIG_HW_RANDOM=m +# CONFIG_NVRAM is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set + +# +# I2C support +# +CONFIG_I2C=m +CONFIG_I2C_CHARDEV=m + +# +# I2C Algorithms +# +# CONFIG_I2C_ALGOBIT is not set +# CONFIG_I2C_ALGOPCF is not set +# CONFIG_I2C_ALGOPCA is not set + +# +# I2C Hardware Bus support +# +CONFIG_I2C_AT91=m +CONFIG_I2C_ISA=m +# CONFIG_I2C_OCORES is not set +# CONFIG_I2C_PARPORT_LIGHT is not set +# CONFIG_I2C_STUB is not set +# CONFIG_I2C_PCA_ISA is not set + +# +# Miscellaneous I2C Chip support +# +CONFIG_SENSORS_DS1337=m +CONFIG_SENSORS_DS1374=m +CONFIG_SENSORS_EEPROM=m +CONFIG_SENSORS_PCF8574=m +CONFIG_SENSORS_PCA9539=m +CONFIG_SENSORS_PCF8591=m +# CONFIG_SENSORS_MAX6875 is not set +# CONFIG_I2C_DEBUG_CORE is not set +# CONFIG_I2C_DEBUG_ALGO is not set +# CONFIG_I2C_DEBUG_BUS is not set +# CONFIG_I2C_DEBUG_CHIP is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=m +CONFIG_HWMON_VID=m +# CONFIG_SENSORS_ABITUGURU is not set +CONFIG_SENSORS_ADM1021=m +CONFIG_SENSORS_ADM1025=m +CONFIG_SENSORS_ADM1026=m +CONFIG_SENSORS_ADM1029=m +CONFIG_SENSORS_ADM1031=m +CONFIG_SENSORS_ADM9240=m +# CONFIG_SENSORS_ASB100 is not set +# CONFIG_SENSORS_ATXP1 is not set +CONFIG_SENSORS_DS1621=m +# CONFIG_SENSORS_F71805F is not set +# CONFIG_SENSORS_FSCHER is not set +# CONFIG_SENSORS_FSCPOS is not set +CONFIG_SENSORS_GL518SM=m +CONFIG_SENSORS_GL520SM=m +CONFIG_SENSORS_IT87=m +CONFIG_SENSORS_LM63=m +CONFIG_SENSORS_LM75=m +CONFIG_SENSORS_LM77=m +CONFIG_SENSORS_LM78=m +CONFIG_SENSORS_LM80=m +CONFIG_SENSORS_LM83=m +CONFIG_SENSORS_LM85=m +CONFIG_SENSORS_LM87=m +CONFIG_SENSORS_LM90=m +CONFIG_SENSORS_LM92=m +CONFIG_SENSORS_MAX1619=m +# CONFIG_SENSORS_PC87360 is not set +# CONFIG_SENSORS_PC87427 is not set +# CONFIG_SENSORS_SMSC47M1 is not set +# CONFIG_SENSORS_SMSC47M192 is not set +CONFIG_SENSORS_SMSC47B397=m +# CONFIG_SENSORS_VT1211 is not set +CONFIG_SENSORS_W83781D=m +CONFIG_SENSORS_W83791D=m +CONFIG_SENSORS_W83792D=m +CONFIG_SENSORS_W83793=m +CONFIG_SENSORS_W83L785TS=m +# CONFIG_SENSORS_W83627HF is not set +# CONFIG_SENSORS_W83627EHF is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Misc devices +# + +# +# Multifunction device drivers +# +# CONFIG_MFD_SM501 is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set +# CONFIG_USB_DABUSB is not set + +# +# Graphics support +# +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set +# CONFIG_FB is not set + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# HID Devices +# +CONFIG_HID=m +# CONFIG_HID_DEBUG is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +# CONFIG_USB_ARCH_HAS_EHCI is not set +CONFIG_USB=m +# CONFIG_USB_DEBUG is not set + +# +# Miscellaneous USB options +# +CONFIG_USB_DEVICEFS=y +# CONFIG_USB_DYNAMIC_MINORS is not set +# CONFIG_USB_OTG is not set + +# +# USB Host Controller Drivers +# +# CONFIG_USB_ISP116X_HCD is not set +CONFIG_USB_OHCI_HCD=m +# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set +# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y +# CONFIG_USB_SL811_HCD is not set + +# +# USB Device Class drivers +# +CONFIG_USB_ACM=m +CONFIG_USB_PRINTER=m + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# may also be needed; see USB_STORAGE Help for more information +# +CONFIG_USB_STORAGE=m +# CONFIG_USB_STORAGE_DEBUG is not set +# CONFIG_USB_STORAGE_DATAFAB is not set +# CONFIG_USB_STORAGE_FREECOM is not set +# CONFIG_USB_STORAGE_DPCM is not set +# CONFIG_USB_STORAGE_USBAT is not set +# CONFIG_USB_STORAGE_SDDR09 is not set +# CONFIG_USB_STORAGE_SDDR55 is not set +# CONFIG_USB_STORAGE_JUMPSHOT is not set +# CONFIG_USB_STORAGE_ALAUDA is not set +# CONFIG_USB_STORAGE_KARMA is not set +# CONFIG_USB_LIBUSUAL is not set + +# +# USB Input Devices +# +CONFIG_USB_HID=m +# CONFIG_USB_HIDINPUT_POWERBOOK is not set +# CONFIG_HID_FF is not set +# CONFIG_USB_HIDDEV is not set + +# +# USB HID Boot Protocol drivers +# +# CONFIG_USB_KBD is not set +# CONFIG_USB_MOUSE is not set +# CONFIG_USB_AIPTEK is not set +# CONFIG_USB_WACOM is not set +# CONFIG_USB_ACECAD is not set +# CONFIG_USB_KBTAB is not set +# CONFIG_USB_POWERMATE is not set +# CONFIG_USB_TOUCHSCREEN is not set +# CONFIG_USB_YEALINK is not set +# CONFIG_USB_XPAD is not set +# CONFIG_USB_ATI_REMOTE is not set +# CONFIG_USB_ATI_REMOTE2 is not set +# CONFIG_USB_KEYSPAN_REMOTE is not set +# CONFIG_USB_APPLETOUCH is not set +# CONFIG_USB_GTCO is not set + +# +# USB Imaging devices +# +# CONFIG_USB_MDC800 is not set +# CONFIG_USB_MICROTEK is not set + +# +# USB Network Adapters +# +CONFIG_USB_CATC=m +CONFIG_USB_KAWETH=m +CONFIG_USB_PEGASUS=m +CONFIG_USB_RTL8150=m +CONFIG_USB_USBNET_MII=m +CONFIG_USB_USBNET=m +CONFIG_USB_NET_AX8817X=m +CONFIG_USB_NET_CDCETHER=m +CONFIG_USB_NET_DM9601=m +CONFIG_USB_NET_GL620A=m +CONFIG_USB_NET_NET1080=m +CONFIG_USB_NET_PLUSB=m +CONFIG_USB_NET_MCS7830=m +CONFIG_USB_NET_RNDIS_HOST=m +CONFIG_USB_NET_CDC_SUBSET=m +CONFIG_USB_ALI_M5632=y +CONFIG_USB_AN2720=y +CONFIG_USB_BELKIN=y +CONFIG_USB_ARMLINUX=y +CONFIG_USB_EPSON2888=y +CONFIG_USB_KC2190=y +CONFIG_USB_NET_ZAURUS=m +# CONFIG_USB_MON is not set + +# +# USB port drivers +# + +# +# USB Serial Converter support +# +CONFIG_USB_SERIAL=m +CONFIG_USB_SERIAL_GENERIC=y +# CONFIG_USB_SERIAL_AIRCABLE is not set +# CONFIG_USB_SERIAL_AIRPRIME is not set +# CONFIG_USB_SERIAL_ARK3116 is not set +# CONFIG_USB_SERIAL_BELKIN is not set +# CONFIG_USB_SERIAL_WHITEHEAT is not set +# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set +# CONFIG_USB_SERIAL_CP2101 is not set +# CONFIG_USB_SERIAL_CYPRESS_M8 is not set +# CONFIG_USB_SERIAL_EMPEG is not set +# CONFIG_USB_SERIAL_FTDI_SIO is not set +# CONFIG_USB_SERIAL_FUNSOFT is not set +# CONFIG_USB_SERIAL_VISOR is not set +# CONFIG_USB_SERIAL_IPAQ is not set +# CONFIG_USB_SERIAL_IR is not set +# CONFIG_USB_SERIAL_EDGEPORT is not set +# CONFIG_USB_SERIAL_EDGEPORT_TI is not set +# CONFIG_USB_SERIAL_GARMIN is not set +# CONFIG_USB_SERIAL_IPW is not set +# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set +# CONFIG_USB_SERIAL_KEYSPAN is not set +# CONFIG_USB_SERIAL_KLSI is not set +# CONFIG_USB_SERIAL_KOBIL_SCT is not set +# CONFIG_USB_SERIAL_MCT_U232 is not set +# CONFIG_USB_SERIAL_MOS7720 is not set +# CONFIG_USB_SERIAL_MOS7840 is not set +# CONFIG_USB_SERIAL_NAVMAN is not set +CONFIG_USB_SERIAL_PL2303=m +# CONFIG_USB_SERIAL_HP4X is not set +# CONFIG_USB_SERIAL_SAFE is not set +# CONFIG_USB_SERIAL_SIERRAWIRELESS is not set +# CONFIG_USB_SERIAL_TI is not set +# CONFIG_USB_SERIAL_CYBERJACK is not set +# CONFIG_USB_SERIAL_XIRCOM is not set +# CONFIG_USB_SERIAL_OPTION is not set +# CONFIG_USB_SERIAL_OMNINET is not set +# CONFIG_USB_SERIAL_DEBUG is not set + +# +# USB Miscellaneous drivers +# +# CONFIG_USB_EMI62 is not set +# CONFIG_USB_EMI26 is not set +# CONFIG_USB_ADUTUX is not set +# CONFIG_USB_AUERSWALD is not set +# CONFIG_USB_RIO500 is not set +# CONFIG_USB_LEGOTOWER is not set +# CONFIG_USB_LCD is not set +# CONFIG_USB_BERRY_CHARGE is not set +# CONFIG_USB_LED is not set +# CONFIG_USB_CYPRESS_CY7C63 is not set +# CONFIG_USB_CYTHERM is not set +# CONFIG_USB_PHIDGET is not set +# CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_FTDI_ELAN is not set +# CONFIG_USB_APPLEDISPLAY is not set +# CONFIG_USB_LD is not set +# CONFIG_USB_TRANCEVIBRATOR is not set +# CONFIG_USB_IOWARRIOR is not set +# CONFIG_USB_TEST is not set + +# +# USB DSL modem support +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +CONFIG_MMC=m +# CONFIG_MMC_DEBUG is not set +CONFIG_MMC_BLOCK=m +CONFIG_MMC_AT91=m + +# +# Real Time Clock +# +CONFIG_RTC_LIB=y +CONFIG_RTC_CLASS=m + +# +# RTC interfaces +# +CONFIG_RTC_INTF_SYSFS=m +CONFIG_RTC_INTF_PROC=m +CONFIG_RTC_INTF_DEV=m +# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set + +# +# RTC drivers +# +# CONFIG_RTC_DRV_CMOS is not set +# CONFIG_RTC_DRV_X1205 is not set +# CONFIG_RTC_DRV_DS1307 is not set +# CONFIG_RTC_DRV_DS1553 is not set +# CONFIG_RTC_DRV_ISL1208 is not set +# CONFIG_RTC_DRV_DS1672 is not set +# CONFIG_RTC_DRV_DS1742 is not set +# CONFIG_RTC_DRV_PCF8563 is not set +# CONFIG_RTC_DRV_RS5C372 is not set +# CONFIG_RTC_DRV_M48T86 is not set +CONFIG_RTC_DRV_AT91RM9200=m +# CONFIG_RTC_DRV_TEST is not set +# CONFIG_RTC_DRV_V3020 is not set + +# +# File systems +# +CONFIG_EXT2_FS=m +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +CONFIG_EXT3_FS=m +# CONFIG_EXT3_FS_XATTR is not set +# CONFIG_EXT4DEV_FS is not set +CONFIG_JBD=m +# CONFIG_JBD_DEBUG is not set +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +CONFIG_ISO9660_FS=m +CONFIG_JOLIET=y +# CONFIG_ZISOFS is not set +CONFIG_UDF_FS=m +CONFIG_UDF_NLS=y + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=m +CONFIG_MSDOS_FS=m +CONFIG_VFAT_FS=m +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +CONFIG_NTFS_FS=m +# CONFIG_NTFS_DEBUG is not set +# CONFIG_NTFS_RW is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_SYSCTL=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_TMPFS_POSIX_ACL is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +CONFIG_JFFS2_FS=y +CONFIG_JFFS2_FS_DEBUG=0 +CONFIG_JFFS2_FS_WRITEBUFFER=y +CONFIG_JFFS2_SUMMARY=y +# CONFIG_JFFS2_FS_XATTR is not set +CONFIG_JFFS2_COMPRESSION_OPTIONS=y +CONFIG_JFFS2_ZLIB=y +CONFIG_JFFS2_RTIME=y +# CONFIG_JFFS2_RUBIN is not set +# CONFIG_JFFS2_CMODE_NONE is not set +CONFIG_JFFS2_CMODE_PRIORITY=y +# CONFIG_JFFS2_CMODE_SIZE is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +CONFIG_NFS_FS=m +# CONFIG_NFS_V3 is not set +# CONFIG_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +# CONFIG_NFSD is not set +CONFIG_LOCKD=m +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=m +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +CONFIG_SMB_FS=m +# CONFIG_SMB_NLS_DEFAULT is not set +CONFIG_CIFS=m +# CONFIG_CIFS_STATS is not set +# CONFIG_CIFS_WEAK_PW_HASH is not set +# CONFIG_CIFS_XATTR is not set +# CONFIG_CIFS_DEBUG2 is not set +# CONFIG_CIFS_EXPERIMENTAL is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +CONFIG_PARTITION_ADVANCED=y +# CONFIG_ACORN_PARTITION is not set +# CONFIG_OSF_PARTITION is not set +CONFIG_AMIGA_PARTITION=y +# CONFIG_ATARI_PARTITION is not set +# CONFIG_MAC_PARTITION is not set +CONFIG_MSDOS_PARTITION=y +# CONFIG_BSD_DISKLABEL is not set +# CONFIG_MINIX_SUBPARTITION is not set +# CONFIG_SOLARIS_X86_PARTITION is not set +# CONFIG_UNIXWARE_DISKLABEL is not set +# CONFIG_LDM_PARTITION is not set +# CONFIG_SGI_PARTITION is not set +# CONFIG_ULTRIX_PARTITION is not set +# CONFIG_SUN_PARTITION is not set +# CONFIG_KARMA_PARTITION is not set +# CONFIG_EFI_PARTITION is not set + +# +# Native Language Support +# +CONFIG_NLS=m +CONFIG_NLS_DEFAULT="utf-8" +CONFIG_NLS_CODEPAGE_437=m +CONFIG_NLS_CODEPAGE_737=m +CONFIG_NLS_CODEPAGE_775=m +CONFIG_NLS_CODEPAGE_850=m +CONFIG_NLS_CODEPAGE_852=m +CONFIG_NLS_CODEPAGE_855=m +CONFIG_NLS_CODEPAGE_857=m +CONFIG_NLS_CODEPAGE_860=m +CONFIG_NLS_CODEPAGE_861=m +CONFIG_NLS_CODEPAGE_862=m +CONFIG_NLS_CODEPAGE_863=m +CONFIG_NLS_CODEPAGE_864=m +CONFIG_NLS_CODEPAGE_865=m +CONFIG_NLS_CODEPAGE_866=m +CONFIG_NLS_CODEPAGE_869=m +CONFIG_NLS_CODEPAGE_936=m +CONFIG_NLS_CODEPAGE_950=m +CONFIG_NLS_CODEPAGE_932=m +CONFIG_NLS_CODEPAGE_949=m +CONFIG_NLS_CODEPAGE_874=m +CONFIG_NLS_ISO8859_8=m +CONFIG_NLS_CODEPAGE_1250=m +CONFIG_NLS_CODEPAGE_1251=m +CONFIG_NLS_ASCII=m +CONFIG_NLS_ISO8859_1=m +CONFIG_NLS_ISO8859_2=m +CONFIG_NLS_ISO8859_3=m +CONFIG_NLS_ISO8859_4=m +CONFIG_NLS_ISO8859_5=m +CONFIG_NLS_ISO8859_6=m +CONFIG_NLS_ISO8859_7=m +CONFIG_NLS_ISO8859_9=m +CONFIG_NLS_ISO8859_13=m +CONFIG_NLS_ISO8859_14=m +CONFIG_NLS_ISO8859_15=m +CONFIG_NLS_KOI8_R=m +CONFIG_NLS_KOI8_U=m +CONFIG_NLS_UTF8=m + +# +# Distributed Lock Manager +# +# CONFIG_DLM is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +CONFIG_ENABLE_MUST_CHECK=y +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_UNUSED_SYMBOLS is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_HEADERS_CHECK is not set +CONFIG_DEBUG_KERNEL=y +# CONFIG_DEBUG_SHIRQ is not set +CONFIG_LOG_BUF_SHIFT=14 +CONFIG_DETECT_SOFTLOCKUP=y +# CONFIG_SCHEDSTATS is not set +# CONFIG_TIMER_STATS is not set +# CONFIG_DEBUG_SLAB is not set +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set +# CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set +# CONFIG_DEBUG_KOBJECT is not set +# CONFIG_DEBUG_BUGVERBOSE is not set +# CONFIG_DEBUG_INFO is not set +# CONFIG_DEBUG_VM is not set +# CONFIG_DEBUG_LIST is not set +CONFIG_FRAME_POINTER=y +# CONFIG_FORCED_INLINING is not set +# CONFIG_RCU_TORTURE_TEST is not set +# CONFIG_FAULT_INJECTION is not set +# CONFIG_DEBUG_USER is not set +# CONFIG_DEBUG_ERRORS is not set +CONFIG_DEBUG_LL=y +# CONFIG_DEBUG_ICEDCC is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +CONFIG_CRYPTO=y +CONFIG_CRYPTO_ALGAPI=m +CONFIG_CRYPTO_BLKCIPHER=m +CONFIG_CRYPTO_HASH=m +CONFIG_CRYPTO_MANAGER=m +CONFIG_CRYPTO_HMAC=m +CONFIG_CRYPTO_XCBC=m +CONFIG_CRYPTO_NULL=m +CONFIG_CRYPTO_MD4=m +CONFIG_CRYPTO_MD5=m +CONFIG_CRYPTO_SHA1=m +CONFIG_CRYPTO_SHA256=m +CONFIG_CRYPTO_SHA512=m +CONFIG_CRYPTO_WP512=m +CONFIG_CRYPTO_TGR192=m +CONFIG_CRYPTO_GF128MUL=m +CONFIG_CRYPTO_ECB=m +CONFIG_CRYPTO_CBC=m +CONFIG_CRYPTO_PCBC=m +CONFIG_CRYPTO_LRW=m +CONFIG_CRYPTO_DES=m +CONFIG_CRYPTO_FCRYPT=m +CONFIG_CRYPTO_BLOWFISH=m +CONFIG_CRYPTO_TWOFISH=m +CONFIG_CRYPTO_TWOFISH_COMMON=m +CONFIG_CRYPTO_SERPENT=m +CONFIG_CRYPTO_AES=m +CONFIG_CRYPTO_CAST5=m +CONFIG_CRYPTO_CAST6=m +CONFIG_CRYPTO_TEA=m +CONFIG_CRYPTO_ARC4=m +CONFIG_CRYPTO_KHAZAD=m +CONFIG_CRYPTO_ANUBIS=m +CONFIG_CRYPTO_DEFLATE=m +CONFIG_CRYPTO_MICHAEL_MIC=m +CONFIG_CRYPTO_CRC32C=m +CONFIG_CRYPTO_CAMELLIA=m +CONFIG_CRYPTO_TEST=m + +# +# Hardware crypto devices +# + +# +# Library routines +# +CONFIG_BITREVERSE=y +CONFIG_CRC_CCITT=m +CONFIG_CRC16=m +CONFIG_CRC32=y +CONFIG_LIBCRC32C=m +CONFIG_ZLIB_INFLATE=y +CONFIG_ZLIB_DEFLATE=y +CONFIG_PLIST=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile index bb28087..593b565 100644 --- a/arch/arm/kernel/Makefile +++ b/arch/arm/kernel/Makefile @@ -7,8 +7,8 @@ AFLAGS_head.o := -DTEXT_OFFSET=$(TEXT_OFFSET) # Object file lists. obj-y := compat.o entry-armv.o entry-common.o irq.o \ - process.o ptrace.o semaphore.o setup.o signal.o sys_arm.o \ - time.o traps.o + process.o ptrace.o semaphore.o setup.o signal.o \ + sys_arm.o stacktrace.o time.o traps.o obj-$(CONFIG_ISA_DMA_API) += dma.o obj-$(CONFIG_ARCH_ACORN) += ecard.o diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c index f1c0fb9..bdbd7da 100644 --- a/arch/arm/kernel/ecard.c +++ b/arch/arm/kernel/ecard.c @@ -40,6 +40,7 @@ #include <linux/device.h> #include <linux/init.h> #include <linux/mutex.h> +#include <linux/kthread.h> #include <asm/dma.h> #include <asm/ecard.h> @@ -50,6 +51,8 @@ #include <asm/mach/irq.h> #include <asm/tlbflush.h> +#include "ecard.h" + #ifndef CONFIG_ARCH_RPC #define HAVE_EXPMASK #endif @@ -123,7 +126,7 @@ static void ecard_task_reset(struct ecard_request *req) res = ec->slot_no == 8 ? &ec->resource[ECARD_RES_MEMC] - : ec->type == ECARD_EASI + : ec->easi ? &ec->resource[ECARD_RES_EASI] : &ec->resource[ECARD_RES_IOCSYNC]; @@ -178,7 +181,7 @@ static void ecard_task_readbytes(struct ecard_request *req) index += 1; } } else { - unsigned long base = (ec->type == ECARD_EASI + unsigned long base = (ec->easi ? &ec->resource[ECARD_RES_EASI] : &ec->resource[ECARD_RES_IOCSYNC])->start; void __iomem *pbase = (void __iomem *)base; @@ -263,8 +266,6 @@ static int ecard_init_mm(void) static int ecard_task(void * unused) { - daemonize("kecardd"); - /* * Allocate a mm. We're not a lazy-TLB kernel task since we need * to set page table entries where the user space would be. Note @@ -727,7 +728,7 @@ static int ecard_prints(char *buffer, ecard_t *ec) char *start = buffer; buffer += sprintf(buffer, " %d: %s ", ec->slot_no, - ec->type == ECARD_EASI ? "EASI" : " "); + ec->easi ? "EASI" : " "); if (ec->cid.id == 0) { struct in_chunk_dir incd; @@ -814,7 +815,7 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot) } ec->slot_no = slot; - ec->type = type; + ec->easi = type == ECARD_EASI; ec->irq = NO_IRQ; ec->fiq = NO_IRQ; ec->dma = NO_DMA; @@ -825,6 +826,7 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot) ec->dev.bus = &ecard_bus_type; ec->dev.dma_mask = &ec->dma_mask; ec->dma_mask = (u64)0xffffffff; + ec->dev.coherent_dma_mask = ec->dma_mask; if (slot < 4) { ec_set_resource(ec, ECARD_RES_MEMC, @@ -907,7 +909,7 @@ static ssize_t ecard_show_device(struct device *dev, struct device_attribute *at static ssize_t ecard_show_type(struct device *dev, struct device_attribute *attr, char *buf) { struct expansion_card *ec = ECARD_DEV(dev); - return sprintf(buf, "%s\n", ec->type == ECARD_EASI ? "EASI" : "IOC"); + return sprintf(buf, "%s\n", ec->easi ? "EASI" : "IOC"); } static struct device_attribute ecard_dev_attrs[] = { @@ -1058,13 +1060,14 @@ ecard_probe(int slot, card_type_t type) */ static int __init ecard_init(void) { - int slot, irqhw, ret; - - ret = kernel_thread(ecard_task, NULL, CLONE_KERNEL); - if (ret < 0) { - printk(KERN_ERR "Ecard: unable to create kernel thread: %d\n", - ret); - return ret; + struct task_struct *task; + int slot, irqhw; + + task = kthread_run(ecard_task, NULL, "kecardd"); + if (IS_ERR(task)) { + printk(KERN_ERR "Ecard: unable to create kernel thread: %ld\n", + PTR_ERR(task)); + return PTR_ERR(task); } printk("Probing expansion cards\n"); diff --git a/arch/arm/kernel/ecard.h b/arch/arm/kernel/ecard.h new file mode 100644 index 0000000..d7c2dac --- /dev/null +++ b/arch/arm/kernel/ecard.h @@ -0,0 +1,56 @@ +/* + * ecard.h + * + * Copyright 2007 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* Definitions internal to ecard.c - for it's use only!! + * + * External expansion card header as read from the card + */ +struct ex_ecid { + unsigned char r_irq:1; + unsigned char r_zero:1; + unsigned char r_fiq:1; + unsigned char r_id:4; + unsigned char r_a:1; + + unsigned char r_cd:1; + unsigned char r_is:1; + unsigned char r_w:2; + unsigned char r_r1:4; + + unsigned char r_r2:8; + + unsigned char r_prod[2]; + + unsigned char r_manu[2]; + + unsigned char r_country; + + unsigned char r_fiqmask; + unsigned char r_fiqoff[3]; + + unsigned char r_irqmask; + unsigned char r_irqoff[3]; +}; + +/* + * Chunk directory entry as read from the card + */ +struct ex_chunk_dir { + unsigned char r_id; + unsigned char r_len[3]; + unsigned long r_start; + union { + char string[256]; + char data[1]; + } d; +#define c_id(x) ((x)->r_id) +#define c_len(x) ((x)->r_len[0]|((x)->r_len[1]<<8)|((x)->r_len[2]<<16)) +#define c_start(x) ((x)->r_start) +}; diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 66db0a9..1d35eda 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -257,7 +257,9 @@ __create_page_tables: * Map some ram to cover our .data and .bss areas. */ orr r3, r7, #(KERNEL_RAM_PADDR & 0xff000000) + .if (KERNEL_RAM_PADDR & 0x00f00000) orr r3, r3, #(KERNEL_RAM_PADDR & 0x00f00000) + .endif add r0, r4, #(KERNEL_RAM_VADDR & 0xff000000) >> 18 str r3, [r0, #(KERNEL_RAM_VADDR & 0x00f00000) >> 18]! ldr r6, =(_end - 1) @@ -274,7 +276,9 @@ __create_page_tables: */ add r0, r4, #PAGE_OFFSET >> 18 orr r6, r7, #(PHYS_OFFSET & 0xff000000) - orr r6, r6, #(PHYS_OFFSET & 0x00e00000) + .if (PHYS_OFFSET & 0x00f00000) + orr r6, r6, #(PHYS_OFFSET & 0x00f00000) + .endif str r6, [r0] #ifdef CONFIG_DEBUG_LL diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index e101846..11dcd52 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -27,7 +27,6 @@ #include <linux/ioport.h> #include <linux/interrupt.h> #include <linux/irq.h> -#include <linux/ptrace.h> #include <linux/slab.h> #include <linux/random.h> #include <linux/smp.h> @@ -109,7 +108,7 @@ static struct irq_desc bad_irq_desc = { * come via this function. Instead, they should provide their * own 'handler' */ -asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs) +asmlinkage void __exception asm_do_IRQ(unsigned int irq, struct pt_regs *regs) { struct pt_regs *old_regs = set_irq_regs(regs); struct irq_desc *desc = irq_desc + irq; diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 782af3c..5d6e652 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -16,7 +16,6 @@ #include <linux/mm.h> #include <linux/stddef.h> #include <linux/unistd.h> -#include <linux/ptrace.h> #include <linux/slab.h> #include <linux/user.h> #include <linux/a.out.h> @@ -28,6 +27,7 @@ #include <linux/cpu.h> #include <linux/elfcore.h> #include <linux/pm.h> +#include <linux/tick.h> #include <asm/leds.h> #include <asm/processor.h> @@ -160,9 +160,11 @@ void cpu_idle(void) if (!idle) idle = default_idle; leds_event(led_idle_start); + tick_nohz_stop_sched_tick(); while (!need_resched()) idle(); leds_event(led_idle_end); + tick_nohz_restart_sched_tick(); preempt_enable_no_resched(); schedule(); preempt_disable(); diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index 9254ba2..13af400 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -457,13 +457,10 @@ void ptrace_cancel_bpt(struct task_struct *child) /* * Called by kernel/ptrace.c when detaching.. - * - * Make sure the single step bit is not set. */ void ptrace_disable(struct task_struct *child) { - child->ptrace &= ~PT_SINGLESTEP; - ptrace_cancel_bpt(child); + single_step_disable(child); } /* @@ -712,9 +709,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) else clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); child->exit_code = data; - /* make sure single-step breakpoint is gone. */ - child->ptrace &= ~PT_SINGLESTEP; - ptrace_cancel_bpt(child); + single_step_disable(child); wake_up_process(child); ret = 0; break; @@ -725,9 +720,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) * exit. */ case PTRACE_KILL: - /* make sure single-step breakpoint is gone. */ - child->ptrace &= ~PT_SINGLESTEP; - ptrace_cancel_bpt(child); + single_step_disable(child); if (child->exit_state != EXIT_ZOMBIE) { child->exit_code = SIGKILL; wake_up_process(child); @@ -742,7 +735,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) ret = -EIO; if (!valid_signal(data)) break; - child->ptrace |= PT_SINGLESTEP; + single_step_enable(child); clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); child->exit_code = data; /* give it a chance to run. */ @@ -786,8 +779,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) break; case PTRACE_SET_SYSCALL: + task_thread_info(child)->syscall = data; ret = 0; - child->ptrace_message = data; break; #ifdef CONFIG_CRUNCH @@ -824,7 +817,7 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno) ip = regs->ARM_ip; regs->ARM_ip = why; - current->ptrace_message = scno; + current_thread_info()->syscall = scno; /* the 0x80 provides a way for the tracing parent to distinguish between a syscall stop and SIGTRAP delivery */ @@ -841,5 +834,5 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno) } regs->ARM_ip = ip; - return current->ptrace_message; + return current_thread_info()->syscall; } diff --git a/arch/arm/kernel/ptrace.h b/arch/arm/kernel/ptrace.h index f7cad13..def3b61 100644 --- a/arch/arm/kernel/ptrace.h +++ b/arch/arm/kernel/ptrace.h @@ -7,6 +7,45 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ +#include <linux/ptrace.h> + extern void ptrace_cancel_bpt(struct task_struct *); extern void ptrace_set_bpt(struct task_struct *); extern void ptrace_break(struct task_struct *, struct pt_regs *); + +/* + * make sure single-step breakpoint is gone. + */ +static inline void single_step_disable(struct task_struct *task) +{ + task->ptrace &= ~PT_SINGLESTEP; + ptrace_cancel_bpt(task); +} + +static inline void single_step_enable(struct task_struct *task) +{ + task->ptrace |= PT_SINGLESTEP; +} + +/* + * Send SIGTRAP if we're single-stepping + */ +static inline void single_step_trap(struct task_struct *task) +{ + if (task->ptrace & PT_SINGLESTEP) { + ptrace_cancel_bpt(task); + send_sig(SIGTRAP, task, 1); + } +} + +static inline void single_step_clear(struct task_struct *task) +{ + if (task->ptrace & PT_SINGLESTEP) + ptrace_cancel_bpt(task); +} + +static inline void single_step_set(struct task_struct *task) +{ + if (task->ptrace & PT_SINGLESTEP) + ptrace_set_bpt(task); +} diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 3843d3b..54cdf1ae 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -9,7 +9,6 @@ */ #include <linux/errno.h> #include <linux/signal.h> -#include <linux/ptrace.h> #include <linux/personality.h> #include <linux/freezer.h> @@ -285,11 +284,7 @@ asmlinkage int sys_sigreturn(struct pt_regs *regs) if (restore_sigframe(regs, frame)) goto badframe; - /* Send SIGTRAP if we're single-stepping */ - if (current->ptrace & PT_SINGLESTEP) { - ptrace_cancel_bpt(current); - send_sig(SIGTRAP, current, 1); - } + single_step_trap(current); return regs->ARM_r0; @@ -324,11 +319,7 @@ asmlinkage int sys_rt_sigreturn(struct pt_regs *regs) if (do_sigaltstack(&frame->sig.uc.uc_stack, NULL, regs->ARM_sp) == -EFAULT) goto badframe; - /* Send SIGTRAP if we're single-stepping */ - if (current->ptrace & PT_SINGLESTEP) { - ptrace_cancel_bpt(current); - send_sig(SIGTRAP, current, 1); - } + single_step_trap(current); return regs->ARM_r0; @@ -644,14 +635,12 @@ static int do_signal(sigset_t *oldset, struct pt_regs *regs, int syscall) if (try_to_freeze()) goto no_signal; - if (current->ptrace & PT_SINGLESTEP) - ptrace_cancel_bpt(current); + single_step_clear(current); signr = get_signal_to_deliver(&info, &ka, regs, NULL); if (signr > 0) { handle_signal(signr, &ka, &info, oldset, regs, syscall); - if (current->ptrace & PT_SINGLESTEP) - ptrace_set_bpt(current); + single_step_set(current); return 1; } @@ -705,8 +694,7 @@ static int do_signal(sigset_t *oldset, struct pt_regs *regs, int syscall) restart_syscall(regs); } } - if (current->ptrace & PT_SINGLESTEP) - ptrace_set_bpt(current); + single_step_set(current); return 0; } diff --git a/arch/arm/kernel/stacktrace.c b/arch/arm/kernel/stacktrace.c new file mode 100644 index 0000000..77ef35e --- /dev/null +++ b/arch/arm/kernel/stacktrace.c @@ -0,0 +1,73 @@ +#include <linux/sched.h> +#include <linux/stacktrace.h> + +#include "stacktrace.h" + +int walk_stackframe(unsigned long fp, unsigned long low, unsigned long high, + int (*fn)(struct stackframe *, void *), void *data) +{ + struct stackframe *frame; + + do { + /* + * Check current frame pointer is within bounds + */ + if ((fp - 12) < low || fp + 4 >= high) + break; + + frame = (struct stackframe *)(fp - 12); + + if (fn(frame, data)) + break; + + /* + * Update the low bound - the next frame must always + * be at a higher address than the current frame. + */ + low = fp + 4; + fp = frame->fp; + } while (fp); + + return 0; +} + +#ifdef CONFIG_STACKTRACE +struct stack_trace_data { + struct stack_trace *trace; + unsigned int skip; +}; + +static int save_trace(struct stackframe *frame, void *d) +{ + struct stack_trace_data *data = d; + struct stack_trace *trace = data->trace; + + if (data->skip) { + data->skip--; + return 0; + } + + trace->entries[trace->nr_entries++] = frame->lr; + + return trace->nr_entries >= trace->max_entries; +} + +void save_stack_trace(struct stack_trace *trace, struct task_struct *task) +{ + struct stack_trace_data data; + unsigned long fp, base; + + data.trace = trace; + data.skip = trace->skip; + + if (task) { + base = (unsigned long)task_stack_page(task); + fp = 0; /* FIXME */ + } else { + base = (unsigned long)task_stack_page(current); + asm("mov %0, fp" : "=r" (fp)); + } + + walk_stackframe(fp, base, base + THREAD_SIZE, save_trace, &data); +} +#endif diff --git a/arch/arm/kernel/stacktrace.h b/arch/arm/kernel/stacktrace.h new file mode 100644 index 0000000..e9fd20cb --- /dev/null +++ b/arch/arm/kernel/stacktrace.h @@ -0,0 +1,9 @@ +struct stackframe { + unsigned long fp; + unsigned long sp; + unsigned long lr; + unsigned long pc; +}; + +int walk_stackframe(unsigned long fp, unsigned long low, unsigned long high, + int (*fn)(struct stackframe *, void *), void *data); diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c index f61decb..d0540e4 100644 --- a/arch/arm/kernel/time.c +++ b/arch/arm/kernel/time.c @@ -327,6 +327,7 @@ void restore_time_delta(struct timespec *delta, struct timespec *rtc) } EXPORT_SYMBOL(restore_time_delta); +#ifndef CONFIG_GENERIC_CLOCKEVENTS /* * Kernel system timer support. */ @@ -340,8 +341,9 @@ void timer_tick(void) update_process_times(user_mode(get_irq_regs())); #endif } +#endif -#ifdef CONFIG_PM +#if defined(CONFIG_PM) && !defined(CONFIG_GENERIC_CLOCKEVENTS) static int timer_suspend(struct sys_device *dev, pm_message_t state) { struct sys_timer *timer = container_of(dev, struct sys_timer, dev); diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 2409560..f05e66b 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -16,7 +16,6 @@ #include <linux/signal.h> #include <linux/spinlock.h> #include <linux/personality.h> -#include <linux/ptrace.h> #include <linux/kallsyms.h> #include <linux/delay.h> #include <linux/init.h> @@ -45,7 +44,18 @@ static int __init user_debug_setup(char *str) __setup("user_debug=", user_debug_setup); #endif -void dump_backtrace_entry(unsigned long where, unsigned long from) +static void dump_mem(const char *str, unsigned long bottom, unsigned long top); + +static inline int in_exception_text(unsigned long ptr) +{ + extern char __exception_text_start[]; + extern char __exception_text_end[]; + + return ptr >= (unsigned long)&__exception_text_start && + ptr < (unsigned long)&__exception_text_end; +} + +void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame) { #ifdef CONFIG_KALLSYMS printk("[<%08lx>] ", where); @@ -55,6 +65,9 @@ void dump_backtrace_entry(unsigned long where, unsigned long from) #else printk("Function entered at [<%08lx>] from [<%08lx>]\n", where, from); #endif + + if (in_exception_text(where)) + dump_mem("Exception stack", frame + 4, frame + 4 + sizeof(struct pt_regs)); } /* @@ -266,13 +279,14 @@ void unregister_undef_hook(struct undef_hook *hook) spin_unlock_irqrestore(&undef_lock, flags); } -asmlinkage void do_undefinstr(struct pt_regs *regs) +asmlinkage void __exception do_undefinstr(struct pt_regs *regs) { unsigned int correction = thumb_mode(regs) ? 2 : 4; unsigned int instr; struct undef_hook *hook; siginfo_t info; void __user *pc; + unsigned long flags; /* * According to the ARM ARM, PC is 2 or 4 bytes ahead, @@ -291,7 +305,7 @@ asmlinkage void do_undefinstr(struct pt_regs *regs) get_user(instr, (u32 __user *)pc); } - spin_lock_irq(&undef_lock); + spin_lock_irqsave(&undef_lock, flags); list_for_each_entry(hook, &undef_hook, node) { if ((instr & hook->instr_mask) == hook->instr_val && (regs->ARM_cpsr & hook->cpsr_mask) == hook->cpsr_val) { @@ -301,7 +315,7 @@ asmlinkage void do_undefinstr(struct pt_regs *regs) } } } - spin_unlock_irq(&undef_lock); + spin_unlock_irqrestore(&undef_lock, flags); #ifdef CONFIG_DEBUG_USER if (user_debug & UDBG_UNDEFINED) { diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index ddbdad4..6be6729 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -59,7 +59,7 @@ SECTIONS usr/built-in.o(.init.ramfs) __initramfs_end = .; #endif - . = ALIGN(64); + . = ALIGN(4096); __per_cpu_start = .; *(.data.percpu) __per_cpu_end = .; @@ -83,6 +83,9 @@ SECTIONS .text : { /* Real text segment */ _text = .; /* Text and read-only data */ + __exception_text_start = .; + *(.exception.text) + __exception_text_end = .; *(.text) SCHED_TEXT LOCK_TEXT diff --git a/arch/arm/lib/backtrace.S b/arch/arm/lib/backtrace.S index 7423008..84dc890 100644 --- a/arch/arm/lib/backtrace.S +++ b/arch/arm/lib/backtrace.S @@ -17,8 +17,8 @@ @ fp is 0 or stack frame #define frame r4 -#define next r5 -#define save r6 +#define sv_fp r5 +#define sv_pc r6 #define mask r7 #define offset r8 @@ -31,108 +31,106 @@ ENTRY(c_backtrace) #if !defined(CONFIG_FRAME_POINTER) || !defined(CONFIG_PRINTK) mov pc, lr #else - stmfd sp!, {r4 - r8, lr} @ Save an extra register so we have a location... - tst r1, #0x10 @ 26 or 32-bit? - moveq mask, #0xfc000003 - movne mask, #0 - tst mask, r0 - movne r0, #0 - movs frame, r0 -1: moveq r0, #-2 - ldmeqfd sp!, {r4 - r8, pc} - -2: stmfd sp!, {pc} @ calculate offset of PC in STMIA instruction - ldr r0, [sp], #4 - adr r1, 2b - 4 + movs frame, r0 @ if frame pointer is zero + beq no_frame @ we have no stack frames + + tst r1, #0x10 @ 26 or 32-bit mode? + moveq mask, #0xfc000003 @ mask for 26-bit + movne mask, #0 @ mask for 32-bit + +1: stmfd sp!, {pc} @ calculate offset of PC stored + ldr r0, [sp], #4 @ by stmfd for this CPU + adr r1, 1b sub offset, r0, r1 -3: tst frame, mask @ Check for address exceptions... - bne 1b +/* + * Stack frame layout: + * optionally saved caller registers (r4 - r10) + * saved fp + * saved sp + * saved lr + * frame => saved pc + * optionally saved arguments (r0 - r3) + * saved sp => <next word> + * + * Functions start with the following code sequence: + * mov ip, sp + * stmfd sp!, {r0 - r3} (optional) + * corrected pc => stmfd sp!, {..., fp, ip, lr, pc} + */ +for_each_frame: tst frame, mask @ Check for address exceptions + bne no_frame + +1001: ldr sv_pc, [frame, #0] @ get saved pc +1002: ldr sv_fp, [frame, #-12] @ get saved fp -1001: ldr next, [frame, #-12] @ get fp -1002: ldr r2, [frame, #-4] @ get lr -1003: ldr r3, [frame, #0] @ get pc - sub save, r3, offset @ Correct PC for prefetching - bic save, save, mask -1004: ldr r1, [save, #0] @ get instruction at function - mov r1, r1, lsr #10 - ldr r3, .Ldsi+4 - teq r1, r3 - subeq save, save, #4 - mov r0, save - bic r1, r2, mask + sub sv_pc, sv_pc, offset @ Correct PC for prefetching + bic sv_pc, sv_pc, mask @ mask PC/LR for the mode + +1003: ldr r2, [sv_pc, #-4] @ if stmfd sp!, {args} exists, + ldr r3, .Ldsi+4 @ adjust saved 'pc' back one + teq r3, r2, lsr #10 @ instruction + subne r0, sv_pc, #4 @ allow for mov + subeq r0, sv_pc, #8 @ allow for mov + stmia + + ldr r1, [frame, #-4] @ get saved lr + mov r2, frame + bic r1, r1, mask @ mask PC/LR for the mode bl dump_backtrace_entry - ldr r0, [frame, #-8] @ get sp - sub r0, r0, #4 -1005: ldr r1, [save, #4] @ get instruction at function+4 - mov r3, r1, lsr #10 - ldr r2, .Ldsi+4 - teq r3, r2 @ Check for stmia sp!, {args} - addeq save, save, #4 @ next instruction - bleq .Ldumpstm - - sub r0, frame, #16 -1006: ldr r1, [save, #4] @ Get 'stmia sp!, {rlist, fp, ip, lr, pc}' instruction - mov r3, r1, lsr #10 - ldr r2, .Ldsi - teq r3, r2 - bleq .Ldumpstm - - /* - * A zero next framepointer means we're done. - */ - teq next, #0 - ldmeqfd sp!, {r4 - r8, pc} - - /* - * The next framepointer must be above the - * current framepointer. - */ - cmp next, frame - mov frame, next - bhi 3b - b 1007f + ldr r1, [sv_pc, #-4] @ if stmfd sp!, {args} exists, + ldr r3, .Ldsi+4 + teq r3, r1, lsr #10 + ldreq r0, [frame, #-8] @ get sp + subeq r0, r0, #4 @ point at the last arg + bleq .Ldumpstm @ dump saved registers -/* - * Fixup for LDMDB. Note that this must not be in the fixup section. - */ -1007: ldr r0, =.Lbad +1004: ldr r1, [sv_pc, #0] @ if stmfd sp!, {..., fp, ip, lr, pc} + ldr r3, .Ldsi @ instruction exists, + teq r3, r1, lsr #10 + subeq r0, frame, #16 + bleq .Ldumpstm @ dump saved registers + + teq sv_fp, #0 @ zero saved fp means + beq no_frame @ no further frames + + cmp sv_fp, frame @ next frame must be + mov frame, sv_fp @ above the current frame + bhi for_each_frame + +1006: adr r0, .Lbad mov r1, frame bl printk - ldmfd sp!, {r4 - r8, pc} - .ltorg +no_frame: ldmfd sp!, {r4 - r8, pc} .section __ex_table,"a" .align 3 - .long 1001b, 1007b - .long 1002b, 1007b - .long 1003b, 1007b - .long 1004b, 1007b - .long 1005b, 1007b - .long 1006b, 1007b + .long 1001b, 1006b + .long 1002b, 1006b + .long 1003b, 1006b + .long 1004b, 1006b .previous #define instr r4 #define reg r5 #define stack r6 -.Ldumpstm: stmfd sp!, {instr, reg, stack, r7, r8, lr} +.Ldumpstm: stmfd sp!, {instr, reg, stack, r7, lr} mov stack, r0 mov instr, r1 - mov reg, #9 + mov reg, #10 mov r7, #0 1: mov r3, #1 tst instr, r3, lsl reg beq 2f add r7, r7, #1 - teq r7, #4 - moveq r7, #0 - moveq r3, #'\n' - movne r3, #' ' - ldr r2, [stack], #-4 - mov r1, reg + teq r7, #6 + moveq r7, #1 + moveq r1, #'\n' + movne r1, #' ' + ldr r3, [stack], #-4 + mov r2, reg adr r0, .Lfp bl printk 2: subs reg, reg, #1 @@ -140,14 +138,13 @@ ENTRY(c_backtrace) teq r7, #0 adrne r0, .Lcr blne printk - mov r0, stack - ldmfd sp!, {instr, reg, stack, r7, r8, pc} + ldmfd sp!, {instr, reg, stack, r7, pc} -.Lfp: .asciz " r%d = %08X%c" +.Lfp: .asciz "%cr%d:%08x" .Lcr: .asciz "\n" .Lbad: .asciz "Backtrace aborted due to bad frame pointer <%p>\n" .align -.Ldsi: .word 0x00e92dd8 >> 2 - .word 0x00e92d00 >> 2 +.Ldsi: .word 0xe92dd800 >> 10 @ stmfd sp!, {... fp, ip, lr, pc} + .word 0xe92d0000 >> 10 @ stmfd sp!, {} #endif diff --git a/arch/arm/lib/getuser.S b/arch/arm/lib/getuser.S index c03ea8e..1dd8ea4f 100644 --- a/arch/arm/lib/getuser.S +++ b/arch/arm/lib/getuser.S @@ -26,8 +26,6 @@ * Note that ADDR_LIMIT is either 0 or 0xc0000000. * Note also that it is intended that __get_user_bad is not global. */ -#include <asm/asm-offsets.h> -#include <asm/thread_info.h> #include <asm/errno.h> .global __get_user_1 diff --git a/arch/arm/lib/putuser.S b/arch/arm/lib/putuser.S index 4593e9c..8620afe 100644 --- a/arch/arm/lib/putuser.S +++ b/arch/arm/lib/putuser.S @@ -26,8 +26,6 @@ * Note that ADDR_LIMIT is either 0 or 0xc0000000 * Note also that it is intended that __put_user_bad is not global. */ -#include <asm/asm-offsets.h> -#include <asm/thread_info.h> #include <asm/errno.h> .global __put_user_1 diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index bf0d962..e238ad8 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -81,6 +81,13 @@ config MACH_KB9200 Select this if you are using KwikByte's KB920x board. <http://kwikbyte.com/KB9202_description_new.htm> +config MACH_PICOTUX2XX + bool "picotux 200" + depends on ARCH_AT91RM9200 + help + Select this if you are using a picotux 200. + <http://www.picotux.com/> + config MACH_KAFA bool "Sperry-Sun KAFA board" depends on ARCH_AT91RM9200 diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index 05de6cd..a412ae1 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -25,6 +25,7 @@ obj-$(CONFIG_MACH_CARMEVA) += board-carmeva.o obj-$(CONFIG_MACH_KB9200) += board-kb9202.o obj-$(CONFIG_MACH_ATEB9200) += board-eb9200.o obj-$(CONFIG_MACH_KAFA) += board-kafa.o +obj-$(CONFIG_MACH_PICOTUX2XX) += board-picotux200.o # AT91SAM9260 board-specific support obj-$(CONFIG_MACH_AT91SAM9260EK) += board-sam9260ek.o diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c index 2ddcdd6..2cad2bf 100644 --- a/arch/arm/mach-at91/at91rm9200.c +++ b/arch/arm/mach-at91/at91rm9200.c @@ -117,6 +117,21 @@ static struct clk pioD_clk = { .pmc_mask = 1 << AT91RM9200_ID_PIOD, .type = CLK_TYPE_PERIPHERAL, }; +static struct clk ssc0_clk = { + .name = "ssc0_clk", + .pmc_mask = 1 << AT91RM9200_ID_SSC0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ssc1_clk = { + .name = "ssc1_clk", + .pmc_mask = 1 << AT91RM9200_ID_SSC1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ssc2_clk = { + .name = "ssc2_clk", + .pmc_mask = 1 << AT91RM9200_ID_SSC2, + .type = CLK_TYPE_PERIPHERAL, +}; static struct clk tc0_clk = { .name = "tc0_clk", .pmc_mask = 1 << AT91RM9200_ID_TC0, @@ -161,7 +176,9 @@ static struct clk *periph_clocks[] __initdata = { &udc_clk, &twi_clk, &spi_clk, - // ssc 0 .. ssc2 + &ssc0_clk, + &ssc1_clk, + &ssc2_clk, &tc0_clk, &tc1_clk, &tc2_clk, diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c index 6ea41d8..e47381e 100644 --- a/arch/arm/mach-at91/at91sam9260.c +++ b/arch/arm/mach-at91/at91sam9260.c @@ -119,6 +119,11 @@ static struct clk spi1_clk = { .pmc_mask = 1 << AT91SAM9260_ID_SPI1, .type = CLK_TYPE_PERIPHERAL, }; +static struct clk ssc_clk = { + .name = "ssc_clk", + .pmc_mask = 1 << AT91SAM9260_ID_SSC, + .type = CLK_TYPE_PERIPHERAL, +}; static struct clk tc0_clk = { .name = "tc0_clk", .pmc_mask = 1 << AT91SAM9260_ID_TC0, @@ -193,7 +198,7 @@ static struct clk *periph_clocks[] __initdata = { &twi_clk, &spi0_clk, &spi1_clk, - // ssc + &ssc_clk, &tc0_clk, &tc1_clk, &tc2_clk, diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c index 784d1e6..dfe8c39 100644 --- a/arch/arm/mach-at91/at91sam9261.c +++ b/arch/arm/mach-at91/at91sam9261.c @@ -97,6 +97,21 @@ static struct clk spi1_clk = { .pmc_mask = 1 << AT91SAM9261_ID_SPI1, .type = CLK_TYPE_PERIPHERAL, }; +static struct clk ssc0_clk = { + .name = "ssc0_clk", + .pmc_mask = 1 << AT91SAM9261_ID_SSC0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ssc1_clk = { + .name = "ssc1_clk", + .pmc_mask = 1 << AT91SAM9261_ID_SSC1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ssc2_clk = { + .name = "ssc2_clk", + .pmc_mask = 1 << AT91SAM9261_ID_SSC2, + .type = CLK_TYPE_PERIPHERAL, +}; static struct clk tc0_clk = { .name = "tc0_clk", .pmc_mask = 1 << AT91SAM9261_ID_TC0, @@ -135,7 +150,9 @@ static struct clk *periph_clocks[] __initdata = { &twi_clk, &spi0_clk, &spi1_clk, - // ssc 0 .. ssc2 + &ssc0_clk, + &ssc1_clk, + &ssc2_clk, &tc0_clk, &tc1_clk, &tc2_clk, diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c index e150476..8e78199 100644 --- a/arch/arm/mach-at91/at91sam9261_devices.c +++ b/arch/arm/mach-at91/at91sam9261_devices.c @@ -430,9 +430,9 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) * LCD Controller * -------------------------------------------------------------------- */ -#if defined(CONFIG_FB_AT91) || defined(CONFIG_FB_AT91_MODULE) +#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE) static u64 lcdc_dmamask = 0xffffffffUL; -static struct at91fb_info lcdc_data; +static struct atmel_lcdfb_info lcdc_data; static struct resource lcdc_resources[] = { [0] = { @@ -455,7 +455,7 @@ static struct resource lcdc_resources[] = { }; static struct platform_device at91_lcdc_device = { - .name = "at91-fb", + .name = "atmel_lcdfb", .id = 0, .dev = { .dma_mask = &lcdc_dmamask, @@ -466,7 +466,7 @@ static struct platform_device at91_lcdc_device = { .num_resources = ARRAY_SIZE(lcdc_resources), }; -void __init at91_add_device_lcdc(struct at91fb_info *data) +void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) { if (!data) { return; @@ -499,7 +499,7 @@ void __init at91_add_device_lcdc(struct at91fb_info *data) platform_device_register(&at91_lcdc_device); } #else -void __init at91_add_device_lcdc(struct at91fb_info *data) {} +void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {} #endif diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c index 0e89a7f..00e27b1 100644 --- a/arch/arm/mach-at91/at91sam9263.c +++ b/arch/arm/mach-at91/at91sam9263.c @@ -87,6 +87,11 @@ static struct clk mmc1_clk = { .pmc_mask = 1 << AT91SAM9263_ID_MCI1, .type = CLK_TYPE_PERIPHERAL, }; +static struct clk can_clk = { + .name = "can_clk", + .pmc_mask = 1 << AT91SAM9263_ID_CAN, + .type = CLK_TYPE_PERIPHERAL, +}; static struct clk twi_clk = { .name = "twi_clk", .pmc_mask = 1 << AT91SAM9263_ID_TWI, @@ -102,16 +107,46 @@ static struct clk spi1_clk = { .pmc_mask = 1 << AT91SAM9263_ID_SPI1, .type = CLK_TYPE_PERIPHERAL, }; +static struct clk ssc0_clk = { + .name = "ssc0_clk", + .pmc_mask = 1 << AT91SAM9263_ID_SSC0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ssc1_clk = { + .name = "ssc1_clk", + .pmc_mask = 1 << AT91SAM9263_ID_SSC1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ac97_clk = { + .name = "ac97_clk", + .pmc_mask = 1 << AT91SAM9263_ID_AC97C, + .type = CLK_TYPE_PERIPHERAL, +}; static struct clk tcb_clk = { .name = "tcb_clk", .pmc_mask = 1 << AT91SAM9263_ID_TCB, .type = CLK_TYPE_PERIPHERAL, }; +static struct clk pwmc_clk = { + .name = "pwmc_clk", + .pmc_mask = 1 << AT91SAM9263_ID_PWMC, + .type = CLK_TYPE_PERIPHERAL, +}; static struct clk macb_clk = { .name = "macb_clk", .pmc_mask = 1 << AT91SAM9263_ID_EMAC, .type = CLK_TYPE_PERIPHERAL, }; +static struct clk dma_clk = { + .name = "dma_clk", + .pmc_mask = 1 << AT91SAM9263_ID_DMA, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk twodge_clk = { + .name = "2dge_clk", + .pmc_mask = 1 << AT91SAM9263_ID_2DGE, + .type = CLK_TYPE_PERIPHERAL, +}; static struct clk udc_clk = { .name = "udc_clk", .pmc_mask = 1 << AT91SAM9263_ID_UDP, @@ -142,20 +177,21 @@ static struct clk *periph_clocks[] __initdata = { &usart2_clk, &mmc0_clk, &mmc1_clk, - // can + &can_clk, &twi_clk, &spi0_clk, &spi1_clk, - // ssc0 .. ssc1 - // ac97 + &ssc0_clk, + &ssc1_clk, + &ac97_clk, &tcb_clk, - // pwmc + &pwmc_clk, &macb_clk, - // 2dge + &twodge_clk, &udc_clk, &isi_clk, &lcdc_clk, - // dma + &dma_clk, &ohci_clk, // irq0 .. irq1 }; diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c index b77121f..2b2e18a 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -573,6 +573,130 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) /* -------------------------------------------------------------------- + * AC97 + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_SND_AT91_AC97) || defined(CONFIG_SND_AT91_AC97_MODULE) +static u64 ac97_dmamask = 0xffffffffUL; +static struct atmel_ac97_data ac97_data; + +static struct resource ac97_resources[] = { + [0] = { + .start = AT91SAM9263_BASE_AC97C, + .end = AT91SAM9263_BASE_AC97C + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9263_ID_AC97C, + .end = AT91SAM9263_ID_AC97C, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9263_ac97_device = { + .name = "ac97c", + .id = 1, + .dev = { + .dma_mask = &ac97_dmamask, + .coherent_dma_mask = 0xffffffff, + .platform_data = &ac97_data, + }, + .resource = ac97_resources, + .num_resources = ARRAY_SIZE(ac97_resources), +}; + +void __init at91_add_device_ac97(struct atmel_ac97_data *data) +{ + if (!data) + return; + + at91_set_A_periph(AT91_PIN_PB0, 0); /* AC97FS */ + at91_set_A_periph(AT91_PIN_PB1, 0); /* AC97CK */ + at91_set_A_periph(AT91_PIN_PB2, 0); /* AC97TX */ + at91_set_A_periph(AT91_PIN_PB3, 0); /* AC97RX */ + + /* reset */ + if (data->reset_pin) + at91_set_gpio_output(data->reset_pin, 0); + + ac97_data = *ek_data; + platform_device_register(&at91sam9263_ac97_device); +} +#else +void __init at91_add_device_ac97(struct atmel_ac97_data *data) {} +#endif + + +/* -------------------------------------------------------------------- + * LCD Controller + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE) +static u64 lcdc_dmamask = 0xffffffffUL; +static struct atmel_lcdfb_info lcdc_data; + +static struct resource lcdc_resources[] = { + [0] = { + .start = AT91SAM9263_LCDC_BASE, + .end = AT91SAM9263_LCDC_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9263_ID_LCDC, + .end = AT91SAM9263_ID_LCDC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91_lcdc_device = { + .name = "atmel_lcdfb", + .id = 0, + .dev = { + .dma_mask = &lcdc_dmamask, + .coherent_dma_mask = 0xffffffff, + .platform_data = &lcdc_data, + }, + .resource = lcdc_resources, + .num_resources = ARRAY_SIZE(lcdc_resources), +}; + +void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) +{ + if (!data) + return; + + at91_set_A_periph(AT91_PIN_PC1, 0); /* LCDHSYNC */ + at91_set_A_periph(AT91_PIN_PC2, 0); /* LCDDOTCK */ + at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDDEN */ + at91_set_B_periph(AT91_PIN_PB9, 0); /* LCDCC */ + at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDD2 */ + at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDD3 */ + at91_set_A_periph(AT91_PIN_PC8, 0); /* LCDD4 */ + at91_set_A_periph(AT91_PIN_PC9, 0); /* LCDD5 */ + at91_set_A_periph(AT91_PIN_PC10, 0); /* LCDD6 */ + at91_set_A_periph(AT91_PIN_PC11, 0); /* LCDD7 */ + at91_set_A_periph(AT91_PIN_PC14, 0); /* LCDD10 */ + at91_set_A_periph(AT91_PIN_PC15, 0); /* LCDD11 */ + at91_set_A_periph(AT91_PIN_PC16, 0); /* LCDD12 */ + at91_set_B_periph(AT91_PIN_PC12, 0); /* LCDD13 */ + at91_set_A_periph(AT91_PIN_PC18, 0); /* LCDD14 */ + at91_set_A_periph(AT91_PIN_PC19, 0); /* LCDD15 */ + at91_set_A_periph(AT91_PIN_PC22, 0); /* LCDD18 */ + at91_set_A_periph(AT91_PIN_PC23, 0); /* LCDD19 */ + at91_set_A_periph(AT91_PIN_PC24, 0); /* LCDD20 */ + at91_set_B_periph(AT91_PIN_PC17, 0); /* LCDD21 */ + at91_set_A_periph(AT91_PIN_PC26, 0); /* LCDD22 */ + at91_set_A_periph(AT91_PIN_PC27, 0); /* LCDD23 */ + + lcdc_data = *data; + platform_device_register(&at91_lcdc_device); +} +#else +void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {} +#endif + + +/* -------------------------------------------------------------------- * LEDs * -------------------------------------------------------------------- */ diff --git a/arch/arm/mach-at91/board-picotux200.c b/arch/arm/mach-at91/board-picotux200.c new file mode 100644 index 0000000..49cfe7a --- /dev/null +++ b/arch/arm/mach-at91/board-picotux200.c @@ -0,0 +1,166 @@ +/* + * linux/arch/arm/mach-at91/board-picotux200.c + * + * Copyright (C) 2005 SAN People + * Copyright (C) 2007 Kleinhenz Elektronik GmbH + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/spi/spi.h> +#include <linux/mtd/physmap.h> + +#include <asm/hardware.h> +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/irq.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <asm/arch/board.h> +#include <asm/arch/gpio.h> +#include <asm/arch/at91rm9200_mc.h> + +#include "generic.h" + + +/* + * Serial port configuration. + * 0 .. 3 = USART0 .. USART3 + * 4 = DBGU + */ +static struct at91_uart_config __initdata picotux200_uart_config = { + .console_tty = 0, /* ttyS0 */ + .nr_tty = 2, + .tty_map = { 4, 1, -1, -1, -1 } /* ttyS0, ..., ttyS4 */ +}; + +static void __init picotux200_map_io(void) +{ + /* Initialize processor: 18.432 MHz crystal */ + at91rm9200_initialize(18432000, AT91RM9200_BGA); + + /* Setup the serial ports and console */ + at91_init_serial(&picotux200_uart_config); +} + +static void __init picotux200_init_irq(void) +{ + at91rm9200_init_interrupts(NULL); +} + +static struct at91_eth_data __initdata picotux200_eth_data = { + .phy_irq_pin = AT91_PIN_PC4, + .is_rmii = 1, +}; + +static struct at91_usbh_data __initdata picotux200_usbh_data = { + .ports = 1, +}; + +// static struct at91_udc_data __initdata picotux200_udc_data = { +// .vbus_pin = AT91_PIN_PD4, +// .pullup_pin = AT91_PIN_PD5, +// }; + +static struct at91_mmc_data __initdata picotux200_mmc_data = { + .det_pin = AT91_PIN_PB27, + .slot_b = 0, + .wire4 = 1, + .wp_pin = AT91_PIN_PA17, +}; + +// static struct spi_board_info picotux200_spi_devices[] = { +// { /* DataFlash chip */ +// .modalias = "mtd_dataflash", +// .chip_select = 0, +// .max_speed_hz = 15 * 1000 * 1000, +// }, +// #ifdef CONFIG_MTD_AT91_DATAFLASH_CARD +// { /* DataFlash card */ +// .modalias = "mtd_dataflash", +// .chip_select = 3, +// .max_speed_hz = 15 * 1000 * 1000, +// }, +// #endif +// }; + +#define PICOTUX200_FLASH_BASE AT91_CHIPSELECT_0 +#define PICOTUX200_FLASH_SIZE 0x400000 + +static struct physmap_flash_data picotux200_flash_data = { + .width = 2, +}; + +static struct resource picotux200_flash_resource = { + .start = PICOTUX200_FLASH_BASE, + .end = PICOTUX200_FLASH_BASE + PICOTUX200_FLASH_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device picotux200_flash = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &picotux200_flash_data, + }, + .resource = &picotux200_flash_resource, + .num_resources = 1, +}; + +static void __init picotux200_board_init(void) +{ + /* Serial */ + at91_add_device_serial(); + /* Ethernet */ + at91_add_device_eth(&picotux200_eth_data); + /* USB Host */ + at91_add_device_usbh(&picotux200_usbh_data); + /* USB Device */ + // at91_add_device_udc(&picotux200_udc_data); + // at91_set_multi_drive(picotux200_udc_data.pullup_pin, 1); /* pullup_pin is connected to reset */ + /* I2C */ + at91_add_device_i2c(); + /* SPI */ + // at91_add_device_spi(picotux200_spi_devices, ARRAY_SIZE(picotux200_spi_devices)); +#ifdef CONFIG_MTD_AT91_DATAFLASH_CARD + /* DataFlash card */ + at91_set_gpio_output(AT91_PIN_PB22, 0); +#else + /* MMC */ + at91_set_gpio_output(AT91_PIN_PB22, 1); /* this MMC card slot can optionally use SPI signaling (CS3). */ + at91_add_device_mmc(0, &picotux200_mmc_data); +#endif + /* NOR Flash */ + platform_device_register(&picotux200_flash); +} + +MACHINE_START(PICOTUX2XX, "picotux 200") + /* Maintainer: Kleinhenz Elektronik GmbH */ + .phys_io = AT91_BASE_SYS, + .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc, + .boot_params = AT91_SDRAM_BASE + 0x100, + .timer = &at91rm9200_timer, + .map_io = picotux200_map_io, + .init_irq = picotux200_init_irq, + .init_machine = picotux200_board_init, +MACHINE_END diff --git a/arch/arm/mach-at91/board-sam9260ek.c b/arch/arm/mach-at91/board-sam9260ek.c index 57fb449..65fa532 100644 --- a/arch/arm/mach-at91/board-sam9260ek.c +++ b/arch/arm/mach-at91/board-sam9260ek.c @@ -104,9 +104,9 @@ static struct spi_board_info ek_spi_devices[] = { }, #endif #endif -#if defined(CONFIG_SND_AT73C213) +#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE) { /* AT73C213 DAC */ - .modalias = "snd_at73c213", + .modalias = "at73c213", .chip_select = 0, .max_speed_hz = 10 * 1000 * 1000, .bus_num = 1, @@ -118,7 +118,7 @@ static struct spi_board_info ek_spi_devices[] = { /* * MACB Ethernet device */ -static struct __initdata at91_eth_data ek_macb_data = { +static struct at91_eth_data __initdata ek_macb_data = { .phy_irq_pin = AT91_PIN_PA7, .is_rmii = 1, }; @@ -140,7 +140,7 @@ static struct mtd_partition __initdata ek_nand_partition[] = { }, }; -static struct mtd_partition *nand_partitions(int size, int *num_partitions) +static struct mtd_partition * __init nand_partitions(int size, int *num_partitions) { *num_partitions = ARRAY_SIZE(ek_nand_partition); return ek_nand_partition; @@ -188,6 +188,8 @@ static void __init ek_board_init(void) at91_add_device_eth(&ek_macb_data); /* MMC */ at91_add_device_mmc(0, &ek_mmc_data); + /* I2C */ + at91_add_device_i2c(); } MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK") diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c index b7e7724..bcf7153 100644 --- a/arch/arm/mach-at91/board-sam9261ek.c +++ b/arch/arm/mach-at91/board-sam9261ek.c @@ -25,6 +25,7 @@ #include <linux/module.h> #include <linux/platform_device.h> #include <linux/spi/spi.h> +#include <linux/spi/ads7846.h> #include <linux/dm9000.h> #include <asm/hardware.h> @@ -195,6 +196,41 @@ static struct at91_nand_data __initdata ek_nand_data = { }; /* + * ADS7846 Touchscreen + */ +#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) + +static int ads7843_pendown_state(void) +{ + return !at91_get_gpio_value(AT91_PIN_PC2); /* Touchscreen PENIRQ */ +} + +static struct ads7846_platform_data ads_info = { + .model = 7843, + .x_min = 150, + .x_max = 3830, + .y_min = 190, + .y_max = 3830, + .vref_delay_usecs = 100, + .x_plate_ohms = 450, + .y_plate_ohms = 250, + .pressure_max = 15000, + .debounce_max = 1, + .debounce_rep = 0, + .debounce_tol = (~0), + .get_pendown_state = ads7843_pendown_state, +}; + +static void __init ek_add_device_ts(void) +{ + at91_set_B_periph(AT91_PIN_PC2, 1); /* External IRQ0, with pullup */ + at91_set_gpio_input(AT91_PIN_PA11, 1); /* Touchscreen BUSY signal */ +} +#else +static void __init ek_add_device_ts(void) {} +#endif + +/* * SPI devices */ static struct spi_board_info ek_spi_devices[] = { @@ -204,6 +240,16 @@ static struct spi_board_info ek_spi_devices[] = { .max_speed_hz = 15 * 1000 * 1000, .bus_num = 0, }, +#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) + { + .modalias = "ads7846", + .chip_select = 2, + .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */ + .bus_num = 0, + .platform_data = &ads_info, + .irq = AT91SAM9261_ID_IRQ0, + }, +#endif #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD) { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */ .modalias = "mtd_dataflash", @@ -211,9 +257,9 @@ static struct spi_board_info ek_spi_devices[] = { .max_speed_hz = 15 * 1000 * 1000, .bus_num = 0, }, -#elif defined(CONFIG_SND_AT73C213) +#elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE) { /* AT73C213 DAC */ - .modalias = "snd_at73c213", + .modalias = "at73c213", .chip_select = 3, .max_speed_hz = 10 * 1000 * 1000, .bus_num = 0, @@ -241,6 +287,8 @@ static void __init ek_board_init(void) #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE) /* SPI */ at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices)); + /* Touchscreen */ + ek_add_device_ts(); #else /* MMC */ at91_add_device_mmc(0, &ek_mmc_data); diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c index 8fdce11..f574585 100644 --- a/arch/arm/mach-at91/board-sam9263ek.c +++ b/arch/arm/mach-at91/board-sam9263ek.c @@ -25,6 +25,7 @@ #include <linux/module.h> #include <linux/platform_device.h> #include <linux/spi/spi.h> +#include <linux/spi/ads7846.h> #include <asm/hardware.h> #include <asm/setup.h> @@ -86,6 +87,40 @@ static struct at91_udc_data __initdata ek_udc_data = { /* + * ADS7846 Touchscreen + */ +#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) +static int ads7843_pendown_state(void) +{ + return !at91_get_gpio_value(AT91_PIN_PA15); /* Touchscreen PENIRQ */ +} + +static struct ads7846_platform_data ads_info = { + .model = 7843, + .x_min = 150, + .x_max = 3830, + .y_min = 190, + .y_max = 3830, + .vref_delay_usecs = 100, + .x_plate_ohms = 450, + .y_plate_ohms = 250, + .pressure_max = 15000, + .debounce_max = 1, + .debounce_rep = 0, + .debounce_tol = (~0), + .get_pendown_state = ads7843_pendown_state, +}; + +static void __init ek_add_device_ts(void) +{ + at91_set_B_periph(AT91_PIN_PA15, 1); /* External IRQ1, with pullup */ + at91_set_gpio_input(AT91_PIN_PA31, 1); /* Touchscreen BUSY signal */ +} +#else +static void __init ek_add_device_ts(void) {} +#endif + +/* * SPI devices. */ static struct spi_board_info ek_spi_devices[] = { @@ -97,6 +132,16 @@ static struct spi_board_info ek_spi_devices[] = { .bus_num = 0, }, #endif +#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) + { + .modalias = "ads7846", + .chip_select = 3, + .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */ + .bus_num = 0, + .platform_data = &ads_info, + .irq = AT91SAM9263_ID_IRQ1, + }, +#endif }; @@ -112,6 +157,14 @@ static struct at91_mmc_data __initdata ek_mmc_data = { /* + * MACB Ethernet device + */ +static struct at91_eth_data __initdata ek_macb_data = { + .is_rmii = 1, +}; + + +/* * NAND flash */ static struct mtd_partition __initdata ek_nand_partition[] = { @@ -148,6 +201,14 @@ static struct at91_nand_data __initdata ek_nand_data = { }; +/* + * AC97 + */ +static struct atmel_ac97_data ek_ac97_data = { + .reset_pin = AT91_PIN_PA13, +}; + + static void __init ek_board_init(void) { /* Serial */ @@ -157,11 +218,20 @@ static void __init ek_board_init(void) /* USB Device */ at91_add_device_udc(&ek_udc_data); /* SPI */ + at91_set_gpio_output(AT91_PIN_PE20, 1); /* select spi0 clock */ at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices)); + /* Touchscreen */ + ek_add_device_ts(); /* MMC */ at91_add_device_mmc(1, &ek_mmc_data); + /* Ethernet */ + at91_add_device_eth(&ek_macb_data); /* NAND */ at91_add_device_nand(&ek_nand_data); + /* I2C */ + at91_add_device_i2c(); + /* AC97 */ + at91_add_device_ac97(&ek_ac97_data); } MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK") diff --git a/arch/arm/mach-ebsa110/io.c b/arch/arm/mach-ebsa110/io.c index db38afb..bbf0d33 100644 --- a/arch/arm/mach-ebsa110/io.c +++ b/arch/arm/mach-ebsa110/io.c @@ -102,6 +102,26 @@ EXPORT_SYMBOL(__readb); EXPORT_SYMBOL(__readw); EXPORT_SYMBOL(__readl); +void readsw(void __iomem *addr, void *data, int len) +{ + void __iomem *a = __isamem_convert_addr(addr); + + BUG_ON((unsigned long)addr & 1); + + __raw_readsw(a, data, len); +} +EXPORT_SYMBOL(readsw); + +void readsl(void __iomem *addr, void *data, int len) +{ + void __iomem *a = __isamem_convert_addr(addr); + + BUG_ON((unsigned long)addr & 3); + + __raw_readsl(a, data, len); +} +EXPORT_SYMBOL(readsl); + void __writeb(u8 val, void __iomem *addr) { void __iomem *a = __isamem_convert_addr(addr); @@ -137,6 +157,26 @@ EXPORT_SYMBOL(__writeb); EXPORT_SYMBOL(__writew); EXPORT_SYMBOL(__writel); +void writesw(void __iomem *addr, void *data, int len) +{ + void __iomem *a = __isamem_convert_addr(addr); + + BUG_ON((unsigned long)addr & 1); + + __raw_writesw(a, data, len); +} +EXPORT_SYMBOL(writesw); + +void writesl(void __iomem *addr, void *data, int len) +{ + void __iomem *a = __isamem_convert_addr(addr); + + BUG_ON((unsigned long)addr & 3); + + __raw_writesl(a, data, len); +} +EXPORT_SYMBOL(writesl); + #define SUPERIO_PORT(p) \ (((p) >> 3) == (0x3f8 >> 3) || \ ((p) >> 3) == (0x2f8 >> 3) || \ diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c index f174d1a..9d7515c 100644 --- a/arch/arm/mach-ep93xx/clock.c +++ b/arch/arm/mach-ep93xx/clock.c @@ -27,6 +27,10 @@ struct clk { u32 enable_mask; }; +static struct clk clk_uart = { + .name = "UARTCLK", + .rate = 14745600, +}; static struct clk clk_pll1 = { .name = "pll1", }; @@ -50,6 +54,7 @@ static struct clk clk_usb_host = { static struct clk *clocks[] = { + &clk_uart, &clk_pll1, &clk_f, &clk_h, diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c index 1463330..d0dc51e 100644 --- a/arch/arm/mach-footbridge/dc21285.c +++ b/arch/arm/mach-footbridge/dc21285.c @@ -10,7 +10,6 @@ */ #include <linux/kernel.h> #include <linux/pci.h> -#include <linux/ptrace.h> #include <linux/interrupt.h> #include <linux/mm.h> #include <linux/slab.h> diff --git a/arch/arm/mach-integrator/pci.c b/arch/arm/mach-integrator/pci.c index 394ec92..af7d3ff 100644 --- a/arch/arm/mach-integrator/pci.c +++ b/arch/arm/mach-integrator/pci.c @@ -23,7 +23,6 @@ */ #include <linux/kernel.h> #include <linux/pci.h> -#include <linux/ptrace.h> #include <linux/interrupt.h> #include <linux/init.h> diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c index fb8c6d9..af9ebcc 100644 --- a/arch/arm/mach-integrator/pci_v3.c +++ b/arch/arm/mach-integrator/pci_v3.c @@ -22,7 +22,6 @@ */ #include <linux/kernel.h> #include <linux/pci.h> -#include <linux/ptrace.h> #include <linux/slab.h> #include <linux/ioport.h> #include <linux/interrupt.h> diff --git a/arch/arm/mach-iop13xx/Makefile b/arch/arm/mach-iop13xx/Makefile index 4185e05..da1609d 100644 --- a/arch/arm/mach-iop13xx/Makefile +++ b/arch/arm/mach-iop13xx/Makefile @@ -7,5 +7,6 @@ obj-$(CONFIG_ARCH_IOP13XX) += setup.o obj-$(CONFIG_ARCH_IOP13XX) += irq.o obj-$(CONFIG_ARCH_IOP13XX) += pci.o obj-$(CONFIG_ARCH_IOP13XX) += io.o +obj-$(CONFIG_ARCH_IOP13XX) += tpmi.o obj-$(CONFIG_MACH_IQ81340SC) += iq81340sc.o obj-$(CONFIG_MACH_IQ81340MC) += iq81340mc.o diff --git a/arch/arm/mach-iop13xx/io.c b/arch/arm/mach-iop13xx/io.c index e79a1b6..5b22fde 100644 --- a/arch/arm/mach-iop13xx/io.c +++ b/arch/arm/mach-iop13xx/io.c @@ -41,7 +41,7 @@ void * __iomem __iop13xx_io(unsigned long io_addr) EXPORT_SYMBOL(__iop13xx_io); void * __iomem __iop13xx_ioremap(unsigned long cookie, size_t size, - unsigned long flags) + unsigned int mtype) { void __iomem * retval; @@ -61,9 +61,9 @@ void * __iomem __iop13xx_ioremap(unsigned long cookie, size_t size, (cookie - IOP13XX_PCIE_LOWER_MEM_RA)); break; case IOP13XX_PBI_LOWER_MEM_RA ... IOP13XX_PBI_UPPER_MEM_RA: - retval = __ioremap(IOP13XX_PBI_LOWER_MEM_PA + - (cookie - IOP13XX_PBI_LOWER_MEM_RA), - size, flags); + retval = __arm_ioremap(IOP13XX_PBI_LOWER_MEM_PA + + (cookie - IOP13XX_PBI_LOWER_MEM_RA), + size, mtype); break; case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA: retval = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(cookie); @@ -75,7 +75,7 @@ void * __iomem __iop13xx_ioremap(unsigned long cookie, size_t size, retval = (void *) IOP13XX_PMMR_PHYS_TO_VIRT(cookie); break; default: - retval = __ioremap(cookie, size, flags); + retval = __arm_ioremap(cookie, size, mtype); } return retval; diff --git a/arch/arm/mach-iop13xx/iq81340mc.c b/arch/arm/mach-iop13xx/iq81340mc.c index a519d707..268a8d8 100644 --- a/arch/arm/mach-iop13xx/iq81340mc.c +++ b/arch/arm/mach-iop13xx/iq81340mc.c @@ -75,11 +75,14 @@ static void __init iq81340mc_init(void) { iop13xx_platform_init(); iq81340mc_pci_init(); + iop13xx_add_tpmi_devices(); } static void __init iq81340mc_timer_init(void) { - iop_init_time(400000000); + unsigned long bus_freq = iop13xx_core_freq() / iop13xx_xsi_bus_ratio(); + printk(KERN_DEBUG "%s: bus frequency: %lu\n", __FUNCTION__, bus_freq); + iop_init_time(bus_freq); } static struct sys_timer iq81340mc_timer = { diff --git a/arch/arm/mach-iop13xx/iq81340sc.c b/arch/arm/mach-iop13xx/iq81340sc.c index 0e71fbc..a51ffd2 100644 --- a/arch/arm/mach-iop13xx/iq81340sc.c +++ b/arch/arm/mach-iop13xx/iq81340sc.c @@ -77,11 +77,14 @@ static void __init iq81340sc_init(void) { iop13xx_platform_init(); iq81340sc_pci_init(); + iop13xx_add_tpmi_devices(); } static void __init iq81340sc_timer_init(void) { - iop_init_time(400000000); + unsigned long bus_freq = iop13xx_core_freq() / iop13xx_xsi_bus_ratio(); + printk(KERN_DEBUG "%s: bus frequency: %lu\n", __FUNCTION__, bus_freq); + iop_init_time(bus_freq); } static struct sys_timer iq81340sc_timer = { diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c index 89ec70e..d1d0d32 100644 --- a/arch/arm/mach-iop13xx/pci.c +++ b/arch/arm/mach-iop13xx/pci.c @@ -88,9 +88,9 @@ void iop13xx_map_pci_memory(void) if (end) { iop13xx_atux_mem_base = - (u32) __ioremap_pfn( + (u32) __arm_ioremap_pfn( __phys_to_pfn(IOP13XX_PCIX_LOWER_MEM_PA) - , 0, iop13xx_atux_mem_size, 0); + , 0, iop13xx_atux_mem_size, MT_DEVICE); if (!iop13xx_atux_mem_base) { printk("%s: atux allocation " "failed\n", __FUNCTION__); @@ -114,9 +114,9 @@ void iop13xx_map_pci_memory(void) if (end) { iop13xx_atue_mem_base = - (u32) __ioremap_pfn( + (u32) __arm_ioremap_pfn( __phys_to_pfn(IOP13XX_PCIE_LOWER_MEM_PA) - , 0, iop13xx_atue_mem_size, 0); + , 0, iop13xx_atue_mem_size, MT_DEVICE); if (!iop13xx_atue_mem_base) { printk("%s: atue allocation " "failed\n", __FUNCTION__); @@ -1023,7 +1023,7 @@ int iop13xx_pci_setup(int nr, struct pci_sys_data *sys) << IOP13XX_ATUX_PCIXSR_FUNC_NUM; __raw_writel(pcixsr, IOP13XX_ATUX_PCIXSR); - res[0].start = IOP13XX_PCIX_LOWER_IO_PA; + res[0].start = IOP13XX_PCIX_LOWER_IO_PA + IOP13XX_PCIX_IO_BUS_OFFSET; res[0].end = IOP13XX_PCIX_UPPER_IO_PA; res[0].name = "IQ81340 ATUX PCI I/O Space"; res[0].flags = IORESOURCE_IO; @@ -1033,7 +1033,7 @@ int iop13xx_pci_setup(int nr, struct pci_sys_data *sys) res[1].name = "IQ81340 ATUX PCI Memory Space"; res[1].flags = IORESOURCE_MEM; sys->mem_offset = IOP13XX_PCIX_MEM_OFFSET; - sys->io_offset = IOP13XX_PCIX_IO_OFFSET; + sys->io_offset = IOP13XX_PCIX_LOWER_IO_PA; break; case IOP13XX_INIT_ATU_ATUE: /* Note: the function number field in the PCSR is ro */ @@ -1044,7 +1044,7 @@ int iop13xx_pci_setup(int nr, struct pci_sys_data *sys) __raw_writel(pcsr, IOP13XX_ATUE_PCSR); - res[0].start = IOP13XX_PCIE_LOWER_IO_PA; + res[0].start = IOP13XX_PCIE_LOWER_IO_PA + IOP13XX_PCIE_IO_BUS_OFFSET; res[0].end = IOP13XX_PCIE_UPPER_IO_PA; res[0].name = "IQ81340 ATUE PCI I/O Space"; res[0].flags = IORESOURCE_IO; @@ -1054,7 +1054,7 @@ int iop13xx_pci_setup(int nr, struct pci_sys_data *sys) res[1].name = "IQ81340 ATUE PCI Memory Space"; res[1].flags = IORESOURCE_MEM; sys->mem_offset = IOP13XX_PCIE_MEM_OFFSET; - sys->io_offset = IOP13XX_PCIE_IO_OFFSET; + sys->io_offset = IOP13XX_PCIE_LOWER_IO_PA; sys->map_irq = iop13xx_pcie_map_irq; break; default: diff --git a/arch/arm/mach-iop13xx/setup.c b/arch/arm/mach-iop13xx/setup.c index 9a46bcd..bc48715 100644 --- a/arch/arm/mach-iop13xx/setup.c +++ b/arch/arm/mach-iop13xx/setup.c @@ -258,15 +258,11 @@ void __init iop13xx_platform_init(void) if (init_uart == IOP13XX_INIT_UART_DEFAULT) { switch (iop13xx_dev_id()) { - /* enable both uarts on iop341 and iop342 */ + /* enable both uarts on iop341 */ case 0x3380: case 0x3384: case 0x3388: case 0x338c: - case 0x3382: - case 0x3386: - case 0x338a: - case 0x338e: init_uart |= IOP13XX_INIT_UART_0; init_uart |= IOP13XX_INIT_UART_1; break; diff --git a/arch/arm/mach-iop13xx/tpmi.c b/arch/arm/mach-iop13xx/tpmi.c new file mode 100644 index 0000000..d3dc278 --- /dev/null +++ b/arch/arm/mach-iop13xx/tpmi.c @@ -0,0 +1,234 @@ +/* + * iop13xx tpmi device resources + * Copyright (c) 2005-2006, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 59 Temple + * Place - Suite 330, Boston, MA 02111-1307 USA. + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/sizes.h> + +/* assumes CONTROLLER_ONLY# is never asserted in the ESSR register */ +#define IOP13XX_TPMI_MMR(dev) IOP13XX_REG_ADDR32_PHYS(0x48000 + (dev << 12)) +#define IOP13XX_TPMI_MEM(dev) IOP13XX_REG_ADDR32_PHYS(0x60000 + (dev << 13)) +#define IOP13XX_TPMI_CTRL(dev) IOP13XX_REG_ADDR32_PHYS(0x50000 + (dev << 10)) +#define IOP13XX_TPMI_MMR_SIZE (SZ_4K - 1) +#define IOP13XX_TPMI_MEM_SIZE (255) +#define IOP13XX_TPMI_MEM_CTRL (SZ_1K - 1) +#define IOP13XX_TPMI_RESOURCE_MMR 0 +#define IOP13XX_TPMI_RESOURCE_MEM 1 +#define IOP13XX_TPMI_RESOURCE_CTRL 2 +#define IOP13XX_TPMI_RESOURCE_IRQ 3 + +static struct resource iop13xx_tpmi_0_resources[] = { + [IOP13XX_TPMI_RESOURCE_MMR] = { + .start = IOP13XX_TPMI_MMR(4), /* tpmi0 starts at dev == 4 */ + .end = IOP13XX_TPMI_MMR(4) + IOP13XX_TPMI_MMR_SIZE, + .flags = IORESOURCE_MEM, + }, + [IOP13XX_TPMI_RESOURCE_MEM] = { + .start = IOP13XX_TPMI_MEM(0), + .end = IOP13XX_TPMI_MEM(0) + IOP13XX_TPMI_MEM_SIZE, + .flags = IORESOURCE_MEM, + }, + [IOP13XX_TPMI_RESOURCE_CTRL] = { + .start = IOP13XX_TPMI_CTRL(0), + .end = IOP13XX_TPMI_CTRL(0) + IOP13XX_TPMI_MEM_CTRL, + .flags = IORESOURCE_MEM, + }, + [IOP13XX_TPMI_RESOURCE_IRQ] = { + .start = IRQ_IOP13XX_TPMI0_OUT, + .end = IRQ_IOP13XX_TPMI0_OUT, + .flags = IORESOURCE_IRQ + } +}; + +static struct resource iop13xx_tpmi_1_resources[] = { + [IOP13XX_TPMI_RESOURCE_MMR] = { + .start = IOP13XX_TPMI_MMR(1), + .end = IOP13XX_TPMI_MMR(1) + IOP13XX_TPMI_MMR_SIZE, + .flags = IORESOURCE_MEM, + }, + [IOP13XX_TPMI_RESOURCE_MEM] = { + .start = IOP13XX_TPMI_MEM(1), + .end = IOP13XX_TPMI_MEM(1) + IOP13XX_TPMI_MEM_SIZE, + .flags = IORESOURCE_MEM, + }, + [IOP13XX_TPMI_RESOURCE_CTRL] = { + .start = IOP13XX_TPMI_CTRL(1), + .end = IOP13XX_TPMI_CTRL(1) + IOP13XX_TPMI_MEM_CTRL, + .flags = IORESOURCE_MEM, + }, + [IOP13XX_TPMI_RESOURCE_IRQ] = { + .start = IRQ_IOP13XX_TPMI1_OUT, + .end = IRQ_IOP13XX_TPMI1_OUT, + .flags = IORESOURCE_IRQ + } +}; + +static struct resource iop13xx_tpmi_2_resources[] = { + [IOP13XX_TPMI_RESOURCE_MMR] = { + .start = IOP13XX_TPMI_MMR(2), + .end = IOP13XX_TPMI_MMR(2) + IOP13XX_TPMI_MMR_SIZE, + .flags = IORESOURCE_MEM, + }, + [IOP13XX_TPMI_RESOURCE_MEM] = { + .start = IOP13XX_TPMI_MEM(2), + .end = IOP13XX_TPMI_MEM(2) + IOP13XX_TPMI_MEM_SIZE, + .flags = IORESOURCE_MEM, + }, + [IOP13XX_TPMI_RESOURCE_CTRL] = { + .start = IOP13XX_TPMI_CTRL(2), + .end = IOP13XX_TPMI_CTRL(2) + IOP13XX_TPMI_MEM_CTRL, + .flags = IORESOURCE_MEM, + }, + [IOP13XX_TPMI_RESOURCE_IRQ] = { + .start = IRQ_IOP13XX_TPMI2_OUT, + .end = IRQ_IOP13XX_TPMI2_OUT, + .flags = IORESOURCE_IRQ + } +}; + +static struct resource iop13xx_tpmi_3_resources[] = { + [IOP13XX_TPMI_RESOURCE_MMR] = { + .start = IOP13XX_TPMI_MMR(3), + .end = IOP13XX_TPMI_MMR(3) + IOP13XX_TPMI_MMR_SIZE, + .flags = IORESOURCE_MEM, + }, + [IOP13XX_TPMI_RESOURCE_MEM] = { + .start = IOP13XX_TPMI_MEM(3), + .end = IOP13XX_TPMI_MEM(3) + IOP13XX_TPMI_MEM_SIZE, + .flags = IORESOURCE_MEM, + }, + [IOP13XX_TPMI_RESOURCE_CTRL] = { + .start = IOP13XX_TPMI_CTRL(3), + .end = IOP13XX_TPMI_CTRL(3) + IOP13XX_TPMI_MEM_CTRL, + .flags = IORESOURCE_MEM, + }, + [IOP13XX_TPMI_RESOURCE_IRQ] = { + .start = IRQ_IOP13XX_TPMI3_OUT, + .end = IRQ_IOP13XX_TPMI3_OUT, + .flags = IORESOURCE_IRQ + } +}; + +u64 iop13xx_tpmi_mask = DMA_64BIT_MASK; +static struct platform_device iop13xx_tpmi_0_device = { + .name = "iop-tpmi", + .id = 0, + .num_resources = 4, + .resource = iop13xx_tpmi_0_resources, + .dev = { + .dma_mask = &iop13xx_tpmi_mask, + .coherent_dma_mask = DMA_64BIT_MASK, + }, +}; + +static struct platform_device iop13xx_tpmi_1_device = { + .name = "iop-tpmi", + .id = 1, + .num_resources = 4, + .resource = iop13xx_tpmi_1_resources, + .dev = { + .dma_mask = &iop13xx_tpmi_mask, + .coherent_dma_mask = DMA_64BIT_MASK, + }, +}; + +static struct platform_device iop13xx_tpmi_2_device = { + .name = "iop-tpmi", + .id = 2, + .num_resources = 4, + .resource = iop13xx_tpmi_2_resources, + .dev = { + .dma_mask = &iop13xx_tpmi_mask, + .coherent_dma_mask = DMA_64BIT_MASK, + }, +}; + +static struct platform_device iop13xx_tpmi_3_device = { + .name = "iop-tpmi", + .id = 3, + .num_resources = 4, + .resource = iop13xx_tpmi_3_resources, + .dev = { + .dma_mask = &iop13xx_tpmi_mask, + .coherent_dma_mask = DMA_64BIT_MASK, + }, +}; + +__init void iop13xx_add_tpmi_devices(void) +{ + unsigned short device_id; + + /* tpmi's not present on iop341 or iop342 */ + if (__raw_readl(IOP13XX_ESSR0) & IOP13XX_INTERFACE_SEL_PCIX) + /* ATUE must be present */ + device_id = __raw_readw(IOP13XX_ATUE_DID); + else + /* ATUX must be present */ + device_id = __raw_readw(IOP13XX_ATUX_DID); + + switch (device_id) { + /* iop34[1|2] 0-tpmi */ + case 0x3380: + case 0x3384: + case 0x3388: + case 0x338c: + case 0x3382: + case 0x3386: + case 0x338a: + case 0x338e: + return; + /* iop348 1-tpmi */ + case 0x3310: + case 0x3312: + case 0x3314: + case 0x3318: + case 0x331a: + case 0x331c: + case 0x33c0: + case 0x33c2: + case 0x33c4: + case 0x33c8: + case 0x33ca: + case 0x33cc: + case 0x33b0: + case 0x33b2: + case 0x33b4: + case 0x33b8: + case 0x33ba: + case 0x33bc: + case 0x3320: + case 0x3322: + case 0x3324: + case 0x3328: + case 0x332a: + case 0x332c: + platform_device_register(&iop13xx_tpmi_0_device); + return; + default: + platform_device_register(&iop13xx_tpmi_0_device); + platform_device_register(&iop13xx_tpmi_1_device); + platform_device_register(&iop13xx_tpmi_2_device); + platform_device_register(&iop13xx_tpmi_3_device); + return; + } +} diff --git a/arch/arm/mach-iop32x/Kconfig b/arch/arm/mach-iop32x/Kconfig index 9dd49cf..9bb02b6 100644 --- a/arch/arm/mach-iop32x/Kconfig +++ b/arch/arm/mach-iop32x/Kconfig @@ -34,6 +34,14 @@ config MACH_N2100 Say Y here if you want to run your kernel on the Thecus n2100 NAS appliance. +config IOP3XX_ATU + bool "Enable the PCI Controller" + default y + help + Say Y here if you want the IOP to initialize its PCI Controller. + Say N if the IOP is an add in card, the host system owns the PCI + bus in this case. + endmenu endif diff --git a/arch/arm/mach-iop32x/iq31244.c b/arch/arm/mach-iop32x/iq31244.c index 60e7430..7b21c6e 100644 --- a/arch/arm/mach-iop32x/iq31244.c +++ b/arch/arm/mach-iop32x/iq31244.c @@ -178,9 +178,10 @@ static struct hw_pci iq31244_pci __initdata = { static int __init iq31244_pci_init(void) { - if (is_ep80219()) - pci_common_init(&ep80219_pci); - else if (machine_is_iq31244()) { + if (is_ep80219()) { + if (iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) + pci_common_init(&ep80219_pci); + } else if (machine_is_iq31244()) { if (is_80219()) { printk("note: iq31244 board type has been selected\n"); printk("note: to select ep80219 operation:\n"); @@ -189,7 +190,9 @@ static int __init iq31244_pci_init(void) printk("\t2/ update boot loader to pass" " the ep80219 id: %d\n", MACH_TYPE_EP80219); } - pci_common_init(&iq31244_pci); + + if (iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) + pci_common_init(&iq31244_pci); } return 0; diff --git a/arch/arm/mach-iop32x/iq80321.c b/arch/arm/mach-iop32x/iq80321.c index 361c70c..bc25fb9 100644 --- a/arch/arm/mach-iop32x/iq80321.c +++ b/arch/arm/mach-iop32x/iq80321.c @@ -113,7 +113,8 @@ static struct hw_pci iq80321_pci __initdata = { static int __init iq80321_pci_init(void) { - if (machine_is_iq80321()) + if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) && + machine_is_iq80321()) pci_common_init(&iq80321_pci); return 0; diff --git a/arch/arm/mach-iop33x/Kconfig b/arch/arm/mach-iop33x/Kconfig index 9aa016b..45598e0 100644 --- a/arch/arm/mach-iop33x/Kconfig +++ b/arch/arm/mach-iop33x/Kconfig @@ -16,6 +16,14 @@ config MACH_IQ80332 Say Y here if you want to run your kernel on the Intel IQ80332 evaluation kit for the IOP332 chipset. +config IOP3XX_ATU + bool "Enable the PCI Controller" + default y + help + Say Y here if you want the IOP to initialize its PCI Controller. + Say N if the IOP is an add in card, the host system owns the PCI + bus in this case. + endmenu endif diff --git a/arch/arm/mach-iop33x/iq80331.c b/arch/arm/mach-iop33x/iq80331.c index 1a9e361..376c932 100644 --- a/arch/arm/mach-iop33x/iq80331.c +++ b/arch/arm/mach-iop33x/iq80331.c @@ -96,7 +96,8 @@ static struct hw_pci iq80331_pci __initdata = { static int __init iq80331_pci_init(void) { - if (machine_is_iq80331()) + if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) && + machine_is_iq80331()) pci_common_init(&iq80331_pci); return 0; diff --git a/arch/arm/mach-iop33x/iq80332.c b/arch/arm/mach-iop33x/iq80332.c index 96d6f0f..58c8149 100644 --- a/arch/arm/mach-iop33x/iq80332.c +++ b/arch/arm/mach-iop33x/iq80332.c @@ -96,7 +96,8 @@ static struct hw_pci iq80332_pci __initdata = { static int __init iq80332_pci_init(void) { - if (machine_is_iq80332()) + if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) && + machine_is_iq80332()) pci_common_init(&iq80332_pci); return 0; diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c index 27b7480..9cf2498 100644 --- a/arch/arm/mach-ixp2000/core.c +++ b/arch/arm/mach-ixp2000/core.c @@ -84,59 +84,59 @@ static struct map_desc ixp2000_io_desc[] __initdata = { .virtual = IXP2000_CAP_VIRT_BASE, .pfn = __phys_to_pfn(IXP2000_CAP_PHYS_BASE), .length = IXP2000_CAP_SIZE, - .type = MT_IXP2000_DEVICE, + .type = MT_DEVICE_IXP2000, }, { .virtual = IXP2000_INTCTL_VIRT_BASE, .pfn = __phys_to_pfn(IXP2000_INTCTL_PHYS_BASE), .length = IXP2000_INTCTL_SIZE, - .type = MT_IXP2000_DEVICE, + .type = MT_DEVICE_IXP2000, }, { .virtual = IXP2000_PCI_CREG_VIRT_BASE, .pfn = __phys_to_pfn(IXP2000_PCI_CREG_PHYS_BASE), .length = IXP2000_PCI_CREG_SIZE, - .type = MT_IXP2000_DEVICE, + .type = MT_DEVICE_IXP2000, }, { .virtual = IXP2000_PCI_CSR_VIRT_BASE, .pfn = __phys_to_pfn(IXP2000_PCI_CSR_PHYS_BASE), .length = IXP2000_PCI_CSR_SIZE, - .type = MT_IXP2000_DEVICE, + .type = MT_DEVICE_IXP2000, }, { .virtual = IXP2000_MSF_VIRT_BASE, .pfn = __phys_to_pfn(IXP2000_MSF_PHYS_BASE), .length = IXP2000_MSF_SIZE, - .type = MT_IXP2000_DEVICE, + .type = MT_DEVICE_IXP2000, }, { .virtual = IXP2000_SCRATCH_RING_VIRT_BASE, .pfn = __phys_to_pfn(IXP2000_SCRATCH_RING_PHYS_BASE), .length = IXP2000_SCRATCH_RING_SIZE, - .type = MT_IXP2000_DEVICE, + .type = MT_DEVICE_IXP2000, }, { .virtual = IXP2000_SRAM0_VIRT_BASE, .pfn = __phys_to_pfn(IXP2000_SRAM0_PHYS_BASE), .length = IXP2000_SRAM0_SIZE, - .type = MT_IXP2000_DEVICE, + .type = MT_DEVICE_IXP2000, }, { .virtual = IXP2000_PCI_IO_VIRT_BASE, .pfn = __phys_to_pfn(IXP2000_PCI_IO_PHYS_BASE), .length = IXP2000_PCI_IO_SIZE, - .type = MT_IXP2000_DEVICE, + .type = MT_DEVICE_IXP2000, }, { .virtual = IXP2000_PCI_CFG0_VIRT_BASE, .pfn = __phys_to_pfn(IXP2000_PCI_CFG0_PHYS_BASE), .length = IXP2000_PCI_CFG0_SIZE, - .type = MT_IXP2000_DEVICE, + .type = MT_DEVICE_IXP2000, }, { .virtual = IXP2000_PCI_CFG1_VIRT_BASE, .pfn = __phys_to_pfn(IXP2000_PCI_CFG1_PHYS_BASE), .length = IXP2000_PCI_CFG1_SIZE, - .type = MT_IXP2000_DEVICE, + .type = MT_DEVICE_IXP2000, } }; void __init ixp2000_map_io(void) { /* - * On IXP2400 CPUs we need to use MT_IXP2000_DEVICE so that + * On IXP2400 CPUs we need to use MT_DEVICE_IXP2000 so that * XCB=101 (to avoid triggering erratum #66), and given that * this mode speeds up I/O accesses and we have write buffer * flushes in the right places anyway, it doesn't hurt to use diff --git a/arch/arm/mach-ixp2000/enp2611.c b/arch/arm/mach-ixp2000/enp2611.c index ac29298..500e997 100644 --- a/arch/arm/mach-ixp2000/enp2611.c +++ b/arch/arm/mach-ixp2000/enp2611.c @@ -70,17 +70,17 @@ static struct map_desc enp2611_io_desc[] __initdata = { .virtual = ENP2611_CALEB_VIRT_BASE, .pfn = __phys_to_pfn(ENP2611_CALEB_PHYS_BASE), .length = ENP2611_CALEB_SIZE, - .type = MT_IXP2000_DEVICE, + .type = MT_DEVICE_IXP2000, }, { .virtual = ENP2611_PM3386_0_VIRT_BASE, .pfn = __phys_to_pfn(ENP2611_PM3386_0_PHYS_BASE), .length = ENP2611_PM3386_0_SIZE, - .type = MT_IXP2000_DEVICE, + .type = MT_DEVICE_IXP2000, }, { .virtual = ENP2611_PM3386_1_VIRT_BASE, .pfn = __phys_to_pfn(ENP2611_PM3386_1_PHYS_BASE), .length = ENP2611_PM3386_1_SIZE, - .type = MT_IXP2000_DEVICE, + .type = MT_DEVICE_IXP2000, } }; diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig index 8a339cd..9715ef5 100644 --- a/arch/arm/mach-ixp4xx/Kconfig +++ b/arch/arm/mach-ixp4xx/Kconfig @@ -62,6 +62,12 @@ config MACH_IXDP465 IXDP465 Development Platform (Also known as BMP). For more information on this platform, see <file:Documentation/arm/IXP4xx>. +config MACH_KIXRP435 + bool "KIXRP435" + help + Say 'Y' here if you want your kernel to support Intel's + KIXRP435 Reference Platform. + For more information on this platform, see <file:Documentation/arm/IXP4xx>. # # IXCDP1100 is the exact same HW as IXDP425, but with a different machine @@ -89,12 +95,21 @@ config MACH_NAS100D NAS 100d device. For more information on this platform, see http://www.nslu2-linux.org/wiki/NAS100d/HomePage +config MACH_DSMG600 + bool + prompt "D-Link DSM-G600 RevA" + select PCI + help + Say 'Y' here if you want your kernel to support D-Link's + DSM-G600 RevA device. For more information on this platform, + see http://www.nslu2-linux.org/wiki/DSMG600/HomePage + # # Avila and IXDP share the same source for now. Will change in future # config ARCH_IXDP4XX bool - depends on ARCH_IXDP425 || MACH_IXDP465 + depends on ARCH_IXDP425 || MACH_IXDP465 || MACH_KIXRP435 default y # @@ -105,6 +120,11 @@ config CPU_IXP46X depends on MACH_IXDP465 default y +config CPU_IXP43X + bool + depends on MACH_KIXRP435 + default y + config MACH_GTWX5715 bool "Gemtek WX5715 (Linksys WRV54G)" depends on ARCH_IXP4XX diff --git a/arch/arm/mach-ixp4xx/Makefile b/arch/arm/mach-ixp4xx/Makefile index 746e297..3b87c47 100644 --- a/arch/arm/mach-ixp4xx/Makefile +++ b/arch/arm/mach-ixp4xx/Makefile @@ -12,6 +12,7 @@ obj-pci-$(CONFIG_ARCH_ADI_COYOTE) += coyote-pci.o obj-pci-$(CONFIG_MACH_GTWX5715) += gtwx5715-pci.o obj-pci-$(CONFIG_MACH_NSLU2) += nslu2-pci.o obj-pci-$(CONFIG_MACH_NAS100D) += nas100d-pci.o +obj-pci-$(CONFIG_MACH_DSMG600) += dsmg600-pci.o obj-y += common.o @@ -22,5 +23,6 @@ obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote-setup.o obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-setup.o obj-$(CONFIG_MACH_NSLU2) += nslu2-setup.o nslu2-power.o obj-$(CONFIG_MACH_NAS100D) += nas100d-setup.o nas100d-power.o +obj-$(CONFIG_MACH_DSMG600) += dsmg600-setup.o dsmg600-power.o obj-$(CONFIG_PCI) += $(obj-pci-$(CONFIG_PCI)) common-pci.o diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c index 9562177..bf04121 100644 --- a/arch/arm/mach-ixp4xx/common-pci.c +++ b/arch/arm/mach-ixp4xx/common-pci.c @@ -374,7 +374,7 @@ void __init ixp4xx_pci_preinit(void) * Determine which PCI read method to use. * Rev 0 IXP425 requires workaround. */ - if (!(processor_id & 0xf) && !cpu_is_ixp46x()) { + if (!(processor_id & 0xf) && cpu_is_ixp42x()) { printk("PCI: IXP42x A0 silicon detected - " "PCI Non-Prefetch Workaround Enabled\n"); ixp4xx_pci_read = ixp4xx_pci_read_errata; @@ -480,7 +480,7 @@ int ixp4xx_setup(int nr, struct pci_sys_data *sys) res[0].flags = IORESOURCE_IO; res[1].name = "PCI Memory Space"; - res[1].start = 0x48000000; + res[1].start = PCIBIOS_MIN_MEM; #ifndef CONFIG_IXP4XX_INDIRECT_PCI res[1].end = 0x4bffffff; #else diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c index 45068c3..f5cae1e 100644 --- a/arch/arm/mach-ixp4xx/common.c +++ b/arch/arm/mach-ixp4xx/common.c @@ -27,6 +27,7 @@ #include <linux/time.h> #include <linux/timex.h> #include <linux/clocksource.h> +#include <linux/clockchips.h> #include <asm/arch/udc.h> #include <asm/hardware.h> @@ -41,6 +42,8 @@ #include <asm/mach/time.h> static int __init ixp4xx_clocksource_init(void); +static int __init ixp4xx_clockevent_init(void); +static struct clock_event_device clockevent_ixp4xx; /************************************************************************* * IXP4xx chipset I/O mapping @@ -102,6 +105,29 @@ static signed char irq2gpio[32] = { 7, 8, 9, 10, 11, 12, -1, -1, }; +int gpio_to_irq(int gpio) +{ + int irq; + + for (irq = 0; irq < 32; irq++) { + if (irq2gpio[irq] == gpio) + return irq; + } + return -EINVAL; +} +EXPORT_SYMBOL(gpio_to_irq); + +int irq_to_gpio(int irq) +{ + int gpio = (irq < 32) ? irq2gpio[irq] : -EINVAL; + + if (gpio == -1) + return -EINVAL; + + return gpio; +} +EXPORT_SYMBOL(irq_to_gpio); + static int ixp4xx_set_irq_type(unsigned int irq, unsigned int type) { int line = irq2gpio[irq]; @@ -169,7 +195,7 @@ static int ixp4xx_set_irq_type(unsigned int irq, unsigned int type) static void ixp4xx_irq_mask(unsigned int irq) { - if (cpu_is_ixp46x() && irq >= 32) + if ((cpu_is_ixp46x() || cpu_is_ixp43x()) && irq >= 32) *IXP4XX_ICMR2 &= ~(1 << (irq - 32)); else *IXP4XX_ICMR &= ~(1 << irq); @@ -192,7 +218,7 @@ static void ixp4xx_irq_unmask(unsigned int irq) if (!(ixp4xx_irq_edge & (1 << irq))) ixp4xx_irq_ack(irq); - if (cpu_is_ixp46x() && irq >= 32) + if ((cpu_is_ixp46x() || cpu_is_ixp43x()) && irq >= 32) *IXP4XX_ICMR2 |= (1 << (irq - 32)); else *IXP4XX_ICMR |= (1 << irq); @@ -216,7 +242,7 @@ void __init ixp4xx_init_irq(void) /* Disable all interrupt */ *IXP4XX_ICMR = 0x0; - if (cpu_is_ixp46x()) { + if (cpu_is_ixp46x() || cpu_is_ixp43x()) { /* Route upper 32 sources to IRQ instead of FIQ */ *IXP4XX_ICLR2 = 0x00; @@ -239,52 +265,40 @@ void __init ixp4xx_init_irq(void) * counter as a source of real clock ticks to account for missed jiffies. *************************************************************************/ -static unsigned volatile last_jiffy_time; - -#define CLOCK_TICKS_PER_USEC ((CLOCK_TICK_RATE + USEC_PER_SEC/2) / USEC_PER_SEC) - static irqreturn_t ixp4xx_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); + struct clock_event_device *evt = &clockevent_ixp4xx; /* Clear Pending Interrupt by writing '1' to it */ *IXP4XX_OSST = IXP4XX_OSST_TIMER_1_PEND; - /* - * Catch up with the real idea of time - */ - while ((signed long)(*IXP4XX_OSTS - last_jiffy_time) >= LATCH) { - timer_tick(); - last_jiffy_time += LATCH; - } - - write_sequnlock(&xtime_lock); + evt->event_handler(evt); return IRQ_HANDLED; } static struct irqaction ixp4xx_timer_irq = { - .name = "IXP4xx Timer Tick", + .name = "timer1", .flags = IRQF_DISABLED | IRQF_TIMER, .handler = ixp4xx_timer_interrupt, }; static void __init ixp4xx_timer_init(void) { + /* Reset/disable counter */ + *IXP4XX_OSRT1 = 0; + /* Clear Pending Interrupt by writing '1' to it */ *IXP4XX_OSST = IXP4XX_OSST_TIMER_1_PEND; - /* Setup the Timer counter value */ - *IXP4XX_OSRT1 = (LATCH & ~IXP4XX_OST_RELOAD_MASK) | IXP4XX_OST_ENABLE; - /* Reset time-stamp counter */ *IXP4XX_OSTS = 0; - last_jiffy_time = 0; /* Connect the interrupt handler and enable the interrupt */ setup_irq(IRQ_IXP4XX_TIMER1, &ixp4xx_timer_irq); ixp4xx_clocksource_init(); + ixp4xx_clockevent_init(); } struct sys_timer ixp4xx_timer = { @@ -384,6 +398,9 @@ void __init ixp4xx_sys_init(void) ixp4xx_exp_bus_size >> 20); } +/* + * clocksource + */ cycle_t ixp4xx_get_cycles(void) { return *IXP4XX_OSTS; @@ -408,3 +425,64 @@ static int __init ixp4xx_clocksource_init(void) return 0; } + +/* + * clockevents + */ +static int ixp4xx_set_next_event(unsigned long evt, + struct clock_event_device *unused) +{ + unsigned long opts = *IXP4XX_OSRT1 & IXP4XX_OST_RELOAD_MASK; + + *IXP4XX_OSRT1 = (evt & ~IXP4XX_OST_RELOAD_MASK) | opts; + + return 0; +} + +static void ixp4xx_set_mode(enum clock_event_mode mode, + struct clock_event_device *evt) +{ + unsigned long opts, osrt = *IXP4XX_OSRT1 & ~IXP4XX_OST_RELOAD_MASK; + + switch (mode) { + case CLOCK_EVT_MODE_PERIODIC: + osrt = LATCH & ~IXP4XX_OST_RELOAD_MASK; + opts = IXP4XX_OST_ENABLE; + break; + case CLOCK_EVT_MODE_ONESHOT: + /* period set by 'set next_event' */ + osrt = 0; + opts = IXP4XX_OST_ENABLE | IXP4XX_OST_ONE_SHOT; + break; + case CLOCK_EVT_MODE_SHUTDOWN: + case CLOCK_EVT_MODE_UNUSED: + default: + osrt = opts = 0; + break; + } + + *IXP4XX_OSRT1 = osrt | opts; +} + +static struct clock_event_device clockevent_ixp4xx = { + .name = "ixp4xx timer1", + .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, + .rating = 200, + .shift = 24, + .set_mode = ixp4xx_set_mode, + .set_next_event = ixp4xx_set_next_event, +}; + +static int __init ixp4xx_clockevent_init(void) +{ + clockevent_ixp4xx.mult = div_sc(FREQ, NSEC_PER_SEC, + clockevent_ixp4xx.shift); + clockevent_ixp4xx.max_delta_ns = + clockevent_delta2ns(0xfffffffe, &clockevent_ixp4xx); + clockevent_ixp4xx.min_delta_ns = + clockevent_delta2ns(0xf, &clockevent_ixp4xx); + clockevent_ixp4xx.cpumask = cpumask_of_cpu(0); + + clockevents_register_device(&clockevent_ixp4xx); + return 0; +} diff --git a/arch/arm/mach-ixp4xx/dsmg600-pci.c b/arch/arm/mach-ixp4xx/dsmg600-pci.c new file mode 100644 index 0000000..9db7e1f --- /dev/null +++ b/arch/arm/mach-ixp4xx/dsmg600-pci.c @@ -0,0 +1,74 @@ +/* + * DSM-G600 board-level PCI initialization + * + * Copyright (C) 2006 Tower Technologies + * Author: Alessandro Zummo <a.zummo@towertech.it> + * + * based on ixdp425-pci.c: + * Copyright (C) 2002 Intel Corporation. + * Copyright (C) 2003-2004 MontaVista Software, Inc. + * + * Maintainer: http://www.nslu2-linux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/irq.h> + +#include <asm/mach/pci.h> +#include <asm/mach-types.h> + +void __init dsmg600_pci_preinit(void) +{ + set_irq_type(IRQ_DSMG600_PCI_INTA, IRQT_LOW); + set_irq_type(IRQ_DSMG600_PCI_INTB, IRQT_LOW); + set_irq_type(IRQ_DSMG600_PCI_INTC, IRQT_LOW); + set_irq_type(IRQ_DSMG600_PCI_INTD, IRQT_LOW); + set_irq_type(IRQ_DSMG600_PCI_INTE, IRQT_LOW); + set_irq_type(IRQ_DSMG600_PCI_INTF, IRQT_LOW); + + ixp4xx_pci_preinit(); +} + +static int __init dsmg600_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + static int pci_irq_table[DSMG600_PCI_MAX_DEV][DSMG600_PCI_IRQ_LINES] = + { + { IRQ_DSMG600_PCI_INTE, -1, -1 }, + { IRQ_DSMG600_PCI_INTA, -1, -1 }, + { IRQ_DSMG600_PCI_INTB, IRQ_DSMG600_PCI_INTC, IRQ_DSMG600_PCI_INTD }, + { IRQ_DSMG600_PCI_INTF, -1, -1 }, + }; + + int irq = -1; + + if (slot >= 1 && slot <= DSMG600_PCI_MAX_DEV && + pin >= 1 && pin <= DSMG600_PCI_IRQ_LINES) + irq = pci_irq_table[slot-1][pin-1]; + + return irq; +} + +struct hw_pci __initdata dsmg600_pci = { + .nr_controllers = 1, + .preinit = dsmg600_pci_preinit, + .swizzle = pci_std_swizzle, + .setup = ixp4xx_setup, + .scan = ixp4xx_scan_bus, + .map_irq = dsmg600_map_irq, +}; + +int __init dsmg600_pci_init(void) +{ + if (machine_is_dsmg600()) + pci_common_init(&dsmg600_pci); + + return 0; +} + +subsys_initcall(dsmg600_pci_init); diff --git a/arch/arm/mach-ixp4xx/dsmg600-power.c b/arch/arm/mach-ixp4xx/dsmg600-power.c new file mode 100644 index 0000000..3471787 --- /dev/null +++ b/arch/arm/mach-ixp4xx/dsmg600-power.c @@ -0,0 +1,125 @@ +/* + * arch/arm/mach-ixp4xx/dsmg600-power.c + * + * DSM-G600 Power/Reset driver + * Author: Michael Westerhof <mwester@dls.net> + * + * Based on nslu2-power.c + * Copyright (C) 2005 Tower Technologies + * Author: Alessandro Zummo <a.zummo@towertech.it> + * + * which was based on nslu2-io.c + * Copyright (C) 2004 Karen Spearel + * + * Maintainers: http://www.nslu2-linux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/module.h> +#include <linux/reboot.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/jiffies.h> +#include <linux/timer.h> + +#include <asm/mach-types.h> + +extern void ctrl_alt_del(void); + +/* This is used to make sure the power-button pusher is serious. The button + * must be held until the value of this counter reaches zero. + */ +static volatile int power_button_countdown; + +/* Must hold the button down for at least this many counts to be processed */ +#define PBUTTON_HOLDDOWN_COUNT 4 /* 2 secs */ + +static void dsmg600_power_handler(unsigned long data); +static DEFINE_TIMER(dsmg600_power_timer, dsmg600_power_handler, 0, 0); + +static void dsmg600_power_handler(unsigned long data) +{ + /* This routine is called twice per second to check the + * state of the power button. + */ + + if (*IXP4XX_GPIO_GPINR & DSMG600_PB_BM) { + + /* IO Pin is 1 (button pushed) */ + if (power_button_countdown == 0) { + /* Signal init to do the ctrlaltdel action, this will bypass + * init if it hasn't started and do a kernel_restart. + */ + ctrl_alt_del(); + + /* Change the state of the power LED to "blink" */ + gpio_line_set(DSMG600_LED_PWR_GPIO, IXP4XX_GPIO_LOW); + } + power_button_countdown--; + + } else { + power_button_countdown = PBUTTON_HOLDDOWN_COUNT; + } + + mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500)); +} + +static irqreturn_t dsmg600_reset_handler(int irq, void *dev_id) +{ + /* This is the paper-clip reset, it shuts the machine down directly. */ + machine_power_off(); + + return IRQ_HANDLED; +} + +static int __init dsmg600_power_init(void) +{ + if (!(machine_is_dsmg600())) + return 0; + + if (request_irq(DSMG600_RB_IRQ, &dsmg600_reset_handler, + IRQF_DISABLED | IRQF_TRIGGER_LOW, "DSM-G600 reset button", + NULL) < 0) { + + printk(KERN_DEBUG "Reset Button IRQ %d not available\n", + DSMG600_RB_IRQ); + + return -EIO; + } + + /* The power button on the D-Link DSM-G600 is on GPIO 15, but + * it cannot handle interrupts on that GPIO line. So we'll + * have to poll it with a kernel timer. + */ + + /* Make sure that the power button GPIO is set up as an input */ + gpio_line_config(DSMG600_PB_GPIO, IXP4XX_GPIO_IN); + + /* Set the initial value for the power button IRQ handler */ + power_button_countdown = PBUTTON_HOLDDOWN_COUNT; + + mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500)); + + return 0; +} + +static void __exit dsmg600_power_exit(void) +{ + if (!(machine_is_dsmg600())) + return; + + del_timer_sync(&dsmg600_power_timer); + + free_irq(DSMG600_RB_IRQ, NULL); +} + +module_init(dsmg600_power_init); +module_exit(dsmg600_power_exit); + +MODULE_AUTHOR("Michael Westerhof <mwester@dls.net>"); +MODULE_DESCRIPTION("DSM-G600 Power/Reset driver"); +MODULE_LICENSE("GPL"); diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c new file mode 100644 index 0000000..1caff65 --- /dev/null +++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c @@ -0,0 +1,175 @@ +/* + * DSM-G600 board-setup + * + * Copyright (C) 2006 Tower Technologies + * Author: Alessandro Zummo <a.zummo@towertech.it> + * + * based ixdp425-setup.c: + * Copyright (C) 2003-2004 MontaVista Software, Inc. + * + * Author: Alessandro Zummo <a.zummo@towertech.it> + * Maintainers: http://www.nslu2-linux.org/ + */ + +#include <linux/kernel.h> +#include <linux/serial.h> +#include <linux/serial_8250.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/flash.h> + +static struct flash_platform_data dsmg600_flash_data = { + .map_name = "cfi_probe", + .width = 2, +}; + +static struct resource dsmg600_flash_resource = { + .flags = IORESOURCE_MEM, +}; + +static struct platform_device dsmg600_flash = { + .name = "IXP4XX-Flash", + .id = 0, + .dev.platform_data = &dsmg600_flash_data, + .num_resources = 1, + .resource = &dsmg600_flash_resource, +}; + +static struct ixp4xx_i2c_pins dsmg600_i2c_gpio_pins = { + .sda_pin = DSMG600_SDA_PIN, + .scl_pin = DSMG600_SCL_PIN, +}; + +static struct platform_device dsmg600_i2c_controller = { + .name = "IXP4XX-I2C", + .id = 0, + .dev.platform_data = &dsmg600_i2c_gpio_pins, +}; + +#ifdef CONFIG_LEDS_CLASS +static struct resource dsmg600_led_resources[] = { + { + .name = "power", + .start = DSMG600_LED_PWR_GPIO, + .end = DSMG600_LED_PWR_GPIO, + .flags = IXP4XX_GPIO_HIGH, + }, + { + .name = "wlan", + .start = DSMG600_LED_WLAN_GPIO, + .end = DSMG600_LED_WLAN_GPIO, + .flags = IXP4XX_GPIO_LOW, + }, +}; + +static struct platform_device dsmg600_leds = { + .name = "IXP4XX-GPIO-LED", + .id = -1, + .num_resources = ARRAY_SIZE(dsmg600_led_resources), + .resource = dsmg600_led_resources, +}; +#endif + +static struct resource dsmg600_uart_resources[] = { + { + .start = IXP4XX_UART1_BASE_PHYS, + .end = IXP4XX_UART1_BASE_PHYS + 0x0fff, + .flags = IORESOURCE_MEM, + }, + { + .start = IXP4XX_UART2_BASE_PHYS, + .end = IXP4XX_UART2_BASE_PHYS + 0x0fff, + .flags = IORESOURCE_MEM, + } +}; + +static struct plat_serial8250_port dsmg600_uart_data[] = { + { + .mapbase = IXP4XX_UART1_BASE_PHYS, + .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET, + .irq = IRQ_IXP4XX_UART1, + .flags = UPF_BOOT_AUTOCONF, + .iotype = UPIO_MEM, + .regshift = 2, + .uartclk = IXP4XX_UART_XTAL, + }, + { + .mapbase = IXP4XX_UART2_BASE_PHYS, + .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET, + .irq = IRQ_IXP4XX_UART2, + .flags = UPF_BOOT_AUTOCONF, + .iotype = UPIO_MEM, + .regshift = 2, + .uartclk = IXP4XX_UART_XTAL, + }, + { } +}; + +static struct platform_device dsmg600_uart = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev.platform_data = dsmg600_uart_data, + .num_resources = ARRAY_SIZE(dsmg600_uart_resources), + .resource = dsmg600_uart_resources, +}; + +static struct platform_device *dsmg600_devices[] __initdata = { + &dsmg600_i2c_controller, + &dsmg600_flash, +}; + +static void dsmg600_power_off(void) +{ + /* enable the pwr cntl gpio */ + gpio_line_config(DSMG600_PO_GPIO, IXP4XX_GPIO_OUT); + + /* poweroff */ + gpio_line_set(DSMG600_PO_GPIO, IXP4XX_GPIO_HIGH); +} + +static void __init dsmg600_init(void) +{ + ixp4xx_sys_init(); + + /* Make sure that GPIO14 and GPIO15 are not used as clocks */ + *IXP4XX_GPIO_GPCLKR = 0; + + dsmg600_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); + dsmg600_flash_resource.end = + IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1; + + pm_power_off = dsmg600_power_off; + + /* The UART is required on the DSM-G600 (Redboot cannot use the + * NIC) -- do it here so that it does *not* get removed if + * platform_add_devices fails! + */ + (void)platform_device_register(&dsmg600_uart); + + platform_add_devices(dsmg600_devices, ARRAY_SIZE(dsmg600_devices)); + +#ifdef CONFIG_LEDS_CLASS + /* We don't care whether or not this works. */ + (void)platform_device_register(&dsmg600_leds); +#endif +} + +static void __init dsmg600_fixup(struct machine_desc *desc, + struct tag *tags, char **cmdline, struct meminfo *mi) +{ + /* The xtal on this machine is non-standard. */ + ixp4xx_timer_freq = DSMG600_FREQ; +} + +MACHINE_START(DSMG600, "D-Link DSM-G600 RevA") + /* Maintainer: www.nslu2-linux.org */ + .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS, + .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC, + .boot_params = 0x00000100, + .fixup = dsmg600_fixup, + .map_io = ixp4xx_map_io, + .init_irq = ixp4xx_init_irq, + .timer = &ixp4xx_timer, + .init_machine = dsmg600_init, +MACHINE_END diff --git a/arch/arm/mach-ixp4xx/ixdp425-pci.c b/arch/arm/mach-ixp4xx/ixdp425-pci.c index 99c1dc8..4087960 100644 --- a/arch/arm/mach-ixp4xx/ixdp425-pci.c +++ b/arch/arm/mach-ixp4xx/ixdp425-pci.c @@ -66,7 +66,7 @@ struct hw_pci ixdp425_pci __initdata = { int __init ixdp425_pci_init(void) { if (machine_is_ixdp425() || machine_is_ixcdp1100() || - machine_is_ixdp465()) + machine_is_ixdp465() || machine_is_kixrp435()) pci_common_init(&ixdp425_pci); return 0; } diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c index 04b1d56..ec4f079 100644 --- a/arch/arm/mach-ixp4xx/ixdp425-setup.c +++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c @@ -115,6 +115,11 @@ static void __init ixdp425_init(void) ixdp425_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1; + if (cpu_is_ixp43x()) { + ixdp425_uart.num_resources = 1; + ixdp425_uart_data[1].flags = 0; + } + platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices)); } @@ -156,3 +161,16 @@ MACHINE_START(IXCDP1100, "Intel IXCDP1100 Development Platform") .init_machine = ixdp425_init, MACHINE_END #endif + +#ifdef CONFIG_MACH_KIXRP435 +MACHINE_START(KIXRP435, "Intel KIXRP435 Reference Platform") + /* Maintainer: MontaVista Software, Inc. */ + .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS, + .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc, + .map_io = ixp4xx_map_io, + .init_irq = ixp4xx_init_irq, + .timer = &ixp4xx_timer, + .boot_params = 0x0100, + .init_machine = ixdp425_init, +MACHINE_END +#endif diff --git a/arch/arm/mach-lh7a40x/irq-lh7a400.c b/arch/arm/mach-lh7a40x/irq-lh7a400.c index 0b938e8..9472bbe 100644 --- a/arch/arm/mach-lh7a40x/irq-lh7a400.c +++ b/arch/arm/mach-lh7a40x/irq-lh7a400.c @@ -11,7 +11,6 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/interrupt.h> -#include <linux/ptrace.h> #include <asm/hardware.h> #include <asm/irq.h> diff --git a/arch/arm/mach-lh7a40x/irq-lh7a404.c b/arch/arm/mach-lh7a40x/irq-lh7a404.c index 5760f8c..9b28389 100644 --- a/arch/arm/mach-lh7a40x/irq-lh7a404.c +++ b/arch/arm/mach-lh7a40x/irq-lh7a404.c @@ -11,7 +11,6 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/interrupt.h> -#include <linux/ptrace.h> #include <asm/hardware.h> #include <asm/irq.h> diff --git a/arch/arm/mach-lh7a40x/irq-lpd7a40x.c b/arch/arm/mach-lh7a40x/irq-lpd7a40x.c index 15b9577..66e1ed3 100644 --- a/arch/arm/mach-lh7a40x/irq-lpd7a40x.c +++ b/arch/arm/mach-lh7a40x/irq-lpd7a40x.c @@ -12,7 +12,6 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/interrupt.h> -#include <linux/ptrace.h> #include <asm/hardware.h> #include <asm/irq.h> diff --git a/arch/arm/mach-ns9xxx/Kconfig b/arch/arm/mach-ns9xxx/Kconfig index 8175ba9..8584ed1 100644 --- a/arch/arm/mach-ns9xxx/Kconfig +++ b/arch/arm/mach-ns9xxx/Kconfig @@ -3,19 +3,30 @@ if ARCH_NS9XXX menu "NS9xxx Implementations" config MACH_CC9P9360DEV - bool "Connect Core 9P 9360 on an A9M9750 Devboard" + bool "ConnectCore 9P 9360 on an A9M9750 Devboard" select PROCESSOR_NS9360 select BOARD_A9M9750DEV help - Say Y here if you are using the Digi Connect Core 9P 9360 + Say Y here if you are using the Digi ConnectCore 9P 9360 on an A9M9750 Development Board. +config MACH_CC9P9360JS + bool "ConnectCore 9P 9360 on a JSCC9P9360 Devboard" + select PROCESSOR_NS9360 + select BOARD_JSCC9P9360 + help + Say Y here if you are using the Digi ConnectCore 9P 9360 + on an JSCC9P9360 Development Board. + config PROCESSOR_NS9360 bool config BOARD_A9M9750DEV bool +config BOARD_JSCC9P9360 + bool + endmenu endif diff --git a/arch/arm/mach-ns9xxx/Makefile b/arch/arm/mach-ns9xxx/Makefile index 91e945f..53213a6 100644 --- a/arch/arm/mach-ns9xxx/Makefile +++ b/arch/arm/mach-ns9xxx/Makefile @@ -3,3 +3,4 @@ obj-y := irq.o time.o generic.o obj-$(CONFIG_MACH_CC9P9360DEV) += mach-cc9p9360dev.o obj-$(CONFIG_BOARD_A9M9750DEV) += board-a9m9750dev.o +obj-$(CONFIG_BOARD_JSCC9P9360) += board-jscc9p9360.o diff --git a/arch/arm/mach-ns9xxx/board-jscc9p9360.c b/arch/arm/mach-ns9xxx/board-jscc9p9360.c new file mode 100644 index 0000000..4bd3eec --- /dev/null +++ b/arch/arm/mach-ns9xxx/board-jscc9p9360.c @@ -0,0 +1,17 @@ +/* + * arch/arm/mach-ns9xxx/board-jscc9p9360.c + * + * Copyright (C) 2006,2007 by Digi International Inc. + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ +#include "board-jscc9p9360.h" + +void __init board_jscc9p9360_init_machine(void) +{ + /* TODO: reserve GPIOs for push buttons, etc pp */ +} + diff --git a/arch/arm/mach-ns9xxx/board-jscc9p9360.h b/arch/arm/mach-ns9xxx/board-jscc9p9360.h new file mode 100644 index 0000000..1a81a07 --- /dev/null +++ b/arch/arm/mach-ns9xxx/board-jscc9p9360.h @@ -0,0 +1,13 @@ +/* + * arch/arm/mach-ns9xxx/board-jscc9p9360.h + * + * Copyright (C) 2006 by Digi International Inc. + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ +#include <linux/init.h> + +void __init board_jscc9p9360_init_machine(void); diff --git a/arch/arm/mach-ns9xxx/mach-cc9p9360js.c b/arch/arm/mach-ns9xxx/mach-cc9p9360js.c new file mode 100644 index 0000000..d09d5fa --- /dev/null +++ b/arch/arm/mach-ns9xxx/mach-cc9p9360js.c @@ -0,0 +1,29 @@ +/* + * arch/arm/mach-ns9xxx/mach-cc9p9360js.c + * + * Copyright (C) 2006 by Digi International Inc. + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ +#include <asm/mach/arch.h> +#include <asm/mach-types.h> + +#include "board-jscc9p9360.h" +#include "generic.h" + +static void __init mach_cc9p9360js_init_machine(void) +{ + ns9xxx_init_machine(); + board_jscc9p9360_init_machine(); +} + +MACHINE_START(CC9P9360DEV, "Digi ConnectCore 9P 9360 on an JSCC9P9360 Devboard") + .map_io = ns9xxx_map_io, + .init_irq = ns9xxx_init_irq, + .init_machine = mach_cc9p9360js_init_machine, + .timer = &ns9xxx_timer, + .boot_params = 0x100, +MACHINE_END diff --git a/arch/arm/mach-omap1/irq.c b/arch/arm/mach-omap1/irq.c index 410d3e7..0733078 100644 --- a/arch/arm/mach-omap1/irq.c +++ b/arch/arm/mach-omap1/irq.c @@ -40,7 +40,6 @@ #include <linux/module.h> #include <linux/sched.h> #include <linux/interrupt.h> -#include <linux/ptrace.h> #include <asm/hardware.h> #include <asm/irq.h> diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c index 0383ab3..6f4ea4b 100644 --- a/arch/arm/mach-omap1/pm.c +++ b/arch/arm/mach-omap1/pm.c @@ -72,12 +72,12 @@ static unsigned int mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_SIZE]; static unsigned short enable_dyn_sleep = 1; -static ssize_t omap_pm_sleep_while_idle_show(struct subsystem * subsys, char *buf) +static ssize_t omap_pm_sleep_while_idle_show(struct kset *kset, char *buf) { return sprintf(buf, "%hu\n", enable_dyn_sleep); } -static ssize_t omap_pm_sleep_while_idle_store(struct subsystem * subsys, +static ssize_t omap_pm_sleep_while_idle_store(struct kset *kset, const char * buf, size_t n) { @@ -100,7 +100,7 @@ static struct subsys_attribute sleep_while_idle_attr = { .store = omap_pm_sleep_while_idle_store, }; -extern struct subsystem power_subsys; +extern struct kset power_subsys; static void (*omap_sram_idle)(void) = NULL; static void (*omap_sram_suspend)(unsigned long r0, unsigned long r1) = NULL; diff --git a/arch/arm/mach-omap1/time.c b/arch/arm/mach-omap1/time.c index 1b7e4a5..85e048b 100644 --- a/arch/arm/mach-omap1/time.c +++ b/arch/arm/mach-omap1/time.c @@ -39,6 +39,10 @@ #include <linux/interrupt.h> #include <linux/sched.h> #include <linux/spinlock.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/clocksource.h> +#include <linux/clockchips.h> #include <asm/system.h> #include <asm/hardware.h> @@ -48,13 +52,7 @@ #include <asm/mach/irq.h> #include <asm/mach/time.h> -struct sys_timer omap_timer; -/* - * --------------------------------------------------------------------------- - * MPU timer - * --------------------------------------------------------------------------- - */ #define OMAP_MPU_TIMER_BASE OMAP_MPU_TIMER1_BASE #define OMAP_MPU_TIMER_OFFSET 0x100 @@ -88,21 +86,6 @@ static inline unsigned long long cycles_2_ns(unsigned long long cyc) return (cyc * cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; } -/* - * MPU_TICKS_PER_SEC must be an even number, otherwise machinecycles_to_usecs - * will break. On P2, the timer count rate is 6.5 MHz after programming PTV - * with 0. This divides the 13MHz input by 2, and is undocumented. - */ -#if defined(CONFIG_MACH_OMAP_PERSEUS2) || defined(CONFIG_MACH_OMAP_FSAMPLE) -/* REVISIT: This ifdef construct should be replaced by a query to clock - * framework to see if timer base frequency is 12.0, 13.0 or 19.2 MHz. - */ -#define MPU_TICKS_PER_SEC (13000000 / 2) -#else -#define MPU_TICKS_PER_SEC (12000000 / 2) -#endif - -#define MPU_TIMER_TICK_PERIOD ((MPU_TICKS_PER_SEC / HZ) - 1) typedef struct { u32 cntl; /* CNTL_TIMER, R/W */ @@ -120,98 +103,164 @@ static inline unsigned long omap_mpu_timer_read(int nr) return timer->read_tim; } -static inline void omap_mpu_timer_start(int nr, unsigned long load_val) +static inline void omap_mpu_set_autoreset(int nr) { volatile omap_mpu_timer_regs_t* timer = omap_mpu_timer_base(nr); - timer->cntl = MPU_TIMER_CLOCK_ENABLE; - udelay(1); - timer->load_tim = load_val; - udelay(1); - timer->cntl = (MPU_TIMER_CLOCK_ENABLE | MPU_TIMER_AR | MPU_TIMER_ST); + timer->cntl = timer->cntl | MPU_TIMER_AR; } -unsigned long omap_mpu_timer_ticks_to_usecs(unsigned long nr_ticks) +static inline void omap_mpu_remove_autoreset(int nr) { - unsigned long long nsec; + volatile omap_mpu_timer_regs_t* timer = omap_mpu_timer_base(nr); - nsec = cycles_2_ns((unsigned long long)nr_ticks); - return (unsigned long)nsec / 1000; + timer->cntl = timer->cntl & ~MPU_TIMER_AR; } -/* - * Last processed system timer interrupt - */ -static unsigned long omap_mpu_timer_last = 0; +static inline void omap_mpu_timer_start(int nr, unsigned long load_val, + int autoreset) +{ + volatile omap_mpu_timer_regs_t* timer = omap_mpu_timer_base(nr); + unsigned int timerflags = (MPU_TIMER_CLOCK_ENABLE | MPU_TIMER_ST); + + if (autoreset) timerflags |= MPU_TIMER_AR; + + timer->cntl = MPU_TIMER_CLOCK_ENABLE; + udelay(1); + timer->load_tim = load_val; + udelay(1); + timer->cntl = timerflags; +} /* - * Returns elapsed usecs since last system timer interrupt + * --------------------------------------------------------------------------- + * MPU timer 1 ... count down to zero, interrupt, reload + * --------------------------------------------------------------------------- */ -static unsigned long omap_mpu_timer_gettimeoffset(void) +static int omap_mpu_set_next_event(unsigned long cycles, + struct clock_event_device *evt) { - unsigned long now = 0 - omap_mpu_timer_read(0); - unsigned long elapsed = now - omap_mpu_timer_last; + omap_mpu_timer_start(0, cycles, 0); + return 0; +} - return omap_mpu_timer_ticks_to_usecs(elapsed); +static void omap_mpu_set_mode(enum clock_event_mode mode, + struct clock_event_device *evt) +{ + switch (mode) { + case CLOCK_EVT_MODE_PERIODIC: + omap_mpu_set_autoreset(0); + break; + case CLOCK_EVT_MODE_ONESHOT: + omap_mpu_remove_autoreset(0); + break; + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: + break; + } } -/* - * Elapsed time between interrupts is calculated using timer0. - * Latency during the interrupt is calculated using timer1. - * Both timer0 and timer1 are counting at 6MHz (P2 6.5MHz). - */ -static irqreturn_t omap_mpu_timer_interrupt(int irq, void *dev_id) +static struct clock_event_device clockevent_mpu_timer1 = { + .name = "mpu_timer1", + .features = CLOCK_EVT_FEAT_PERIODIC, CLOCK_EVT_FEAT_ONESHOT, + .shift = 32, + .set_next_event = omap_mpu_set_next_event, + .set_mode = omap_mpu_set_mode, +}; + +static irqreturn_t omap_mpu_timer1_interrupt(int irq, void *dev_id) { - unsigned long now, latency; + struct clock_event_device *evt = &clockevent_mpu_timer1; - write_seqlock(&xtime_lock); - now = 0 - omap_mpu_timer_read(0); - latency = MPU_TICKS_PER_SEC / HZ - omap_mpu_timer_read(1); - omap_mpu_timer_last = now - latency; - timer_tick(); - write_sequnlock(&xtime_lock); + evt->event_handler(evt); return IRQ_HANDLED; } -static struct irqaction omap_mpu_timer_irq = { - .name = "mpu timer", +static struct irqaction omap_mpu_timer1_irq = { + .name = "mpu_timer1", .flags = IRQF_DISABLED | IRQF_TIMER, - .handler = omap_mpu_timer_interrupt, + .handler = omap_mpu_timer1_interrupt, }; -static unsigned long omap_mpu_timer1_overflows; -static irqreturn_t omap_mpu_timer1_interrupt(int irq, void *dev_id) +static __init void omap_init_mpu_timer(unsigned long rate) +{ + set_cyc2ns_scale(rate / 1000); + + setup_irq(INT_TIMER1, &omap_mpu_timer1_irq); + omap_mpu_timer_start(0, (rate / HZ) - 1, 1); + + clockevent_mpu_timer1.mult = div_sc(rate, NSEC_PER_SEC, + clockevent_mpu_timer1.shift); + clockevent_mpu_timer1.max_delta_ns = + clockevent_delta2ns(-1, &clockevent_mpu_timer1); + clockevent_mpu_timer1.min_delta_ns = + clockevent_delta2ns(1, &clockevent_mpu_timer1); + + clockevent_mpu_timer1.cpumask = cpumask_of_cpu(0); + clockevents_register_device(&clockevent_mpu_timer1); +} + + +/* + * --------------------------------------------------------------------------- + * MPU timer 2 ... free running 32-bit clock source and scheduler clock + * --------------------------------------------------------------------------- + */ + +static unsigned long omap_mpu_timer2_overflows; + +static irqreturn_t omap_mpu_timer2_interrupt(int irq, void *dev_id) { - omap_mpu_timer1_overflows++; + omap_mpu_timer2_overflows++; return IRQ_HANDLED; } -static struct irqaction omap_mpu_timer1_irq = { - .name = "mpu timer1 overflow", +static struct irqaction omap_mpu_timer2_irq = { + .name = "mpu_timer2", .flags = IRQF_DISABLED, - .handler = omap_mpu_timer1_interrupt, + .handler = omap_mpu_timer2_interrupt, }; -static __init void omap_init_mpu_timer(void) +static cycle_t mpu_read(void) { - set_cyc2ns_scale(MPU_TICKS_PER_SEC / 1000); - omap_timer.offset = omap_mpu_timer_gettimeoffset; - setup_irq(INT_TIMER1, &omap_mpu_timer1_irq); - setup_irq(INT_TIMER2, &omap_mpu_timer_irq); - omap_mpu_timer_start(0, 0xffffffff); - omap_mpu_timer_start(1, MPU_TIMER_TICK_PERIOD); + return ~omap_mpu_timer_read(1); +} + +static struct clocksource clocksource_mpu = { + .name = "mpu_timer2", + .rating = 300, + .read = mpu_read, + .mask = CLOCKSOURCE_MASK(32), + .shift = 24, + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +static void __init omap_init_clocksource(unsigned long rate) +{ + static char err[] __initdata = KERN_ERR + "%s: can't register clocksource!\n"; + + clocksource_mpu.mult + = clocksource_khz2mult(rate/1000, clocksource_mpu.shift); + + setup_irq(INT_TIMER2, &omap_mpu_timer2_irq); + omap_mpu_timer_start(1, ~0, 1); + + if (clocksource_register(&clocksource_mpu)) + printk(err, clocksource_mpu.name); } + /* * Scheduler clock - returns current time in nanosec units. */ unsigned long long sched_clock(void) { - unsigned long ticks = 0 - omap_mpu_timer_read(0); + unsigned long ticks = 0 - omap_mpu_timer_read(1); unsigned long long ticks64; - ticks64 = omap_mpu_timer1_overflows; + ticks64 = omap_mpu_timer2_overflows; ticks64 <<= 32; ticks64 |= ticks; @@ -225,10 +274,21 @@ unsigned long long sched_clock(void) */ static void __init omap_timer_init(void) { - omap_init_mpu_timer(); + struct clk *ck_ref = clk_get(NULL, "ck_ref"); + unsigned long rate; + + BUG_ON(IS_ERR(ck_ref)); + + rate = clk_get_rate(ck_ref); + clk_put(ck_ref); + + /* PTV = 0 */ + rate /= 2; + + omap_init_mpu_timer(rate); + omap_init_clocksource(rate); } struct sys_timer omap_timer = { .init = omap_timer_init, - .offset = NULL, /* Initialized later */ }; diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index b8cb79f..64b08b7 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -164,9 +164,9 @@ void pxa_set_cken(int clock, int enable) local_irq_save(flags); if (enable) - CKEN |= clock; + CKEN |= (1 << clock); else - CKEN &= ~clock; + CKEN &= ~(1 << clock); local_irq_restore(flags); } diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c index f815678..4619d5f 100644 --- a/arch/arm/mach-pxa/irq.c +++ b/arch/arm/mach-pxa/irq.c @@ -15,7 +15,6 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/interrupt.h> -#include <linux/ptrace.h> #include <asm/hardware.h> #include <asm/irq.h> @@ -39,11 +38,33 @@ static void pxa_unmask_low_irq(unsigned int irq) ICMR |= (1 << (irq + PXA_IRQ_SKIP)); } +static int pxa_set_wake(unsigned int irq, unsigned int on) +{ + u32 mask; + + switch (irq) { + case IRQ_RTCAlrm: + mask = PWER_RTC; + break; +#ifdef CONFIG_PXA27x + /* REVISIT can handle USBH1, USBH2, USB, MSL, USIM, ... */ +#endif + default: + return -EINVAL; + } + if (on) + PWER |= mask; + else + PWER &= ~mask; + return 0; +} + static struct irq_chip pxa_internal_chip_low = { .name = "SC", .ack = pxa_mask_low_irq, .mask = pxa_mask_low_irq, .unmask = pxa_unmask_low_irq, + .set_wake = pxa_set_wake, }; #if PXA_INTERNAL_IRQS > 32 @@ -71,6 +92,26 @@ static struct irq_chip pxa_internal_chip_high = { #endif +/* Note that if an input/irq line ever gets changed to an output during + * suspend, the relevant PWER, PRER, and PFER bits should be cleared. + */ +#ifdef CONFIG_PXA27x + +/* PXA27x: Various gpios can issue wakeup events. This logic only + * handles the simple cases, not the WEMUX2 and WEMUX3 options + */ +#define PXA27x_GPIO_NOWAKE_MASK \ + ((1 << 8) | (1 << 7) | (1 << 6) | (1 << 5) | (1 << 2)) +#define WAKEMASK(gpio) \ + (((gpio) <= 15) \ + ? ((1 << (gpio)) & ~PXA27x_GPIO_NOWAKE_MASK) \ + : ((gpio == 35) ? (1 << 24) : 0)) +#else + +/* pxa 210, 250, 255, 26x: gpios 0..15 can issue wakeups */ +#define WAKEMASK(gpio) (((gpio) <= 15) ? (1 << (gpio)) : 0) +#endif + /* * PXA GPIO edge detection for IRQs: * IRQs are generated on Falling-Edge, Rising-Edge, or both. @@ -84,9 +125,11 @@ static long GPIO_IRQ_mask[4]; static int pxa_gpio_irq_type(unsigned int irq, unsigned int type) { int gpio, idx; + u32 mask; gpio = IRQ_TO_GPIO(irq); idx = gpio >> 5; + mask = WAKEMASK(gpio); if (type == IRQT_PROBE) { /* Don't mess with enabled GPIOs using preconfigured edges or @@ -106,14 +149,20 @@ static int pxa_gpio_irq_type(unsigned int irq, unsigned int type) if (type & __IRQT_RISEDGE) { /* printk("rising "); */ __set_bit (gpio, GPIO_IRQ_rising_edge); - } else + PRER |= mask; + } else { __clear_bit (gpio, GPIO_IRQ_rising_edge); + PRER &= ~mask; + } if (type & __IRQT_FALEDGE) { /* printk("falling "); */ __set_bit (gpio, GPIO_IRQ_falling_edge); - } else + PFER |= mask; + } else { __clear_bit (gpio, GPIO_IRQ_falling_edge); + PFER &= ~mask; + } /* printk("edges\n"); */ @@ -131,12 +180,29 @@ static void pxa_ack_low_gpio(unsigned int irq) GEDR0 = (1 << (irq - IRQ_GPIO0)); } +static int pxa_set_gpio_wake(unsigned int irq, unsigned int on) +{ + int gpio = IRQ_TO_GPIO(irq); + u32 mask = WAKEMASK(gpio); + + if (!mask) + return -EINVAL; + + if (on) + PWER |= mask; + else + PWER &= ~mask; + return 0; +} + + static struct irq_chip pxa_low_gpio_chip = { .name = "GPIO-l", .ack = pxa_ack_low_gpio, .mask = pxa_mask_low_irq, .unmask = pxa_unmask_low_irq, .set_type = pxa_gpio_irq_type, + .set_wake = pxa_set_gpio_wake, }; /* @@ -245,6 +311,7 @@ static struct irq_chip pxa_muxed_gpio_chip = { .mask = pxa_mask_muxed_gpio, .unmask = pxa_unmask_muxed_gpio, .set_type = pxa_gpio_irq_type, + .set_wake = pxa_set_gpio_wake, }; diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c index 8e27a64..e309766 100644 --- a/arch/arm/mach-pxa/lpd270.c +++ b/arch/arm/mach-pxa/lpd270.c @@ -234,7 +234,7 @@ static void lpd270_backlight_power(int on) { if (on) { pxa_gpio_mode(GPIO16_PWM0_MD); - pxa_set_cken(CKEN0_PWM0, 1); + pxa_set_cken(CKEN_PWM0, 1); PWM_CTRL0 = 0; PWM_PWDUTY0 = 0x3ff; PWM_PERVAL0 = 0x3ff; @@ -242,7 +242,7 @@ static void lpd270_backlight_power(int on) PWM_CTRL0 = 0; PWM_PWDUTY0 = 0x0; PWM_PERVAL0 = 0x3FF; - pxa_set_cken(CKEN0_PWM0, 0); + pxa_set_cken(CKEN_PWM0, 0); } } diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c index 055de7f..6377b2e 100644 --- a/arch/arm/mach-pxa/lubbock.c +++ b/arch/arm/mach-pxa/lubbock.c @@ -220,7 +220,7 @@ static struct resource pxa_ssp_resources[] = { static struct pxa2xx_spi_master pxa_ssp_master_info = { .ssp_type = PXA25x_SSP, - .clock_enable = CKEN3_SSP, + .clock_enable = CKEN_SSP, .num_chipselect = 0, }; diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c index 56d94d8..ed99a81 100644 --- a/arch/arm/mach-pxa/mainstone.c +++ b/arch/arm/mach-pxa/mainstone.c @@ -266,7 +266,7 @@ static void mainstone_backlight_power(int on) { if (on) { pxa_gpio_mode(GPIO16_PWM0_MD); - pxa_set_cken(CKEN0_PWM0, 1); + pxa_set_cken(CKEN_PWM0, 1); PWM_CTRL0 = 0; PWM_PWDUTY0 = 0x3ff; PWM_PERVAL0 = 0x3ff; @@ -274,7 +274,7 @@ static void mainstone_backlight_power(int on) PWM_CTRL0 = 0; PWM_PWDUTY0 = 0x0; PWM_PERVAL0 = 0x3FF; - pxa_set_cken(CKEN0_PWM0, 0); + pxa_set_cken(CKEN_PWM0, 0); } } diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index 74eeada..c64bab4 100644 --- a/arch/arm/mach-pxa/pxa27x.c +++ b/arch/arm/mach-pxa/pxa27x.c @@ -140,9 +140,9 @@ void pxa_cpu_pm_enter(suspend_state_t state) extern void pxa_cpu_resume(void); if (state == PM_SUSPEND_STANDBY) - CKEN = CKEN22_MEMC | CKEN9_OSTIMER | CKEN16_LCD |CKEN0_PWM0; + CKEN = CKEN_MEMC | CKEN_OSTIMER | CKEN_LCD | CKEN_PWM0; else - CKEN = CKEN22_MEMC | CKEN9_OSTIMER; + CKEN = CKEN_MEMC | CKEN_OSTIMER; /* ensure voltage-change sequencer not initiated, which hangs */ PCFR &= ~PCFR_FVC; diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c index 6cc2027..71766ac 100644 --- a/arch/arm/mach-pxa/ssp.c +++ b/arch/arm/mach-pxa/ssp.c @@ -52,13 +52,13 @@ struct ssp_info_ { */ static const struct ssp_info_ ssp_info[PXA_SSP_PORTS] = { #if defined (CONFIG_PXA27x) - {IRQ_SSP, CKEN23_SSP1}, - {IRQ_SSP2, CKEN3_SSP2}, - {IRQ_SSP3, CKEN4_SSP3}, + {IRQ_SSP, CKEN_SSP1}, + {IRQ_SSP2, CKEN_SSP2}, + {IRQ_SSP3, CKEN_SSP3}, #else - {IRQ_SSP, CKEN3_SSP}, - {IRQ_NSSP, CKEN9_NSSP}, - {IRQ_ASSP, CKEN10_ASSP}, + {IRQ_SSP, CKEN_SSP}, + {IRQ_NSSP, CKEN_NSSP}, + {IRQ_ASSP, CKEN_ASSP}, #endif }; diff --git a/arch/arm/mach-rpc/riscpc.c b/arch/arm/mach-rpc/riscpc.c index 208a2b5..570cf93 100644 --- a/arch/arm/mach-rpc/riscpc.c +++ b/arch/arm/mach-rpc/riscpc.c @@ -17,6 +17,7 @@ #include <linux/sched.h> #include <linux/device.h> #include <linux/serial_8250.h> +#include <linux/pata_platform.h> #include <asm/elf.h> #include <asm/io.h> @@ -159,11 +160,45 @@ static struct platform_device serial_device = { }, }; +static struct pata_platform_info pata_platform_data = { + .ioport_shift = 2, +}; + +static struct resource pata_resources[] = { + [0] = { + .start = 0x030107c0, + .end = 0x030107df, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = 0x03010fd8, + .end = 0x03010fdb, + .flags = IORESOURCE_MEM, + }, + [2] = { + .start = IRQ_HARDDISK, + .end = IRQ_HARDDISK, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device pata_device = { + .name = "pata_platform", + .id = -1, + .num_resources = ARRAY_SIZE(pata_resources), + .resource = pata_resources, + .dev = { + .platform_data = &pata_platform_data, + .coherent_dma_mask = ~0, /* grumble */ + }, +}; + static struct platform_device *devs[] __initdata = { &iomd_device, &kbd_device, &serial_device, &acornfb_device, + &pata_device, }; static int __init rpc_init(void) diff --git a/arch/arm/mach-s3c2410/bast-irq.c b/arch/arm/mach-s3c2410/bast-irq.c index daeba42..76a7cb1 100644 --- a/arch/arm/mach-s3c2410/bast-irq.c +++ b/arch/arm/mach-s3c2410/bast-irq.c @@ -24,7 +24,6 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/ioport.h> -#include <linux/ptrace.h> #include <linux/sysdev.h> #include <asm/mach-types.h> diff --git a/arch/arm/mach-s3c2410/irq.c b/arch/arm/mach-s3c2410/irq.c index 53cbdaa..f5c5c53 100644 --- a/arch/arm/mach-s3c2410/irq.c +++ b/arch/arm/mach-s3c2410/irq.c @@ -23,7 +23,6 @@ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/ioport.h> -#include <linux/ptrace.h> #include <linux/sysdev.h> #include <asm/plat-s3c24xx/cpu.h> diff --git a/arch/arm/mach-s3c2410/mach-amlm5900.c b/arch/arm/mach-s3c2410/mach-amlm5900.c index 72f2cc4..bc308ce 100644 --- a/arch/arm/mach-s3c2410/mach-amlm5900.c +++ b/arch/arm/mach-s3c2410/mach-amlm5900.c @@ -160,17 +160,11 @@ static struct platform_device *amlm5900_devices[] __initdata = { #endif }; -static struct s3c24xx_board amlm5900_board __initdata = { - .devices = amlm5900_devices, - .devices_count = ARRAY_SIZE(amlm5900_devices) -}; - void __init amlm5900_map_io(void) { s3c24xx_init_io(amlm5900_iodesc, ARRAY_SIZE(amlm5900_iodesc)); s3c24xx_init_clocks(0); s3c24xx_init_uarts(amlm5900_uartcfgs, ARRAY_SIZE(amlm5900_uartcfgs)); - s3c24xx_set_board(&amlm5900_board); } #ifdef CONFIG_FB_S3C2410 @@ -247,6 +241,7 @@ static void __init amlm5900_init(void) #ifdef CONFIG_FB_S3C2410 s3c24xx_fb_set_platdata(&amlm5900_lcd_info); #endif + platform_add_devices(amlm5900_devices, ARRAY_SIZE(amlm5900_devices)); } MACHINE_START(AML_M5900, "AML_M5900") diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c index 7b81296..f01de80 100644 --- a/arch/arm/mach-s3c2410/mach-bast.c +++ b/arch/arm/mach-s3c2410/mach-bast.c @@ -464,13 +464,6 @@ static struct clk *bast_clocks[] = { &s3c24xx_uclk, }; -static struct s3c24xx_board bast_board __initdata = { - .devices = bast_devices, - .devices_count = ARRAY_SIZE(bast_devices), - .clocks = bast_clocks, - .clocks_count = ARRAY_SIZE(bast_clocks), -}; - static void __init bast_map_io(void) { /* initialise the clocks */ @@ -486,19 +479,22 @@ static void __init bast_map_io(void) s3c24xx_uclk.parent = &s3c24xx_clkout1; + s3c24xx_register_clocks(bast_clocks, ARRAY_SIZE(bast_clocks)); + s3c_device_nand.dev.platform_data = &bast_nand_info; s3c_device_i2c.dev.platform_data = &bast_i2c_info; s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc)); s3c24xx_init_clocks(0); s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs)); - s3c24xx_set_board(&bast_board); + usb_simtec_init(); } static void __init bast_init(void) { s3c24xx_fb_set_platdata(&bast_lcd_info); + platform_add_devices(bast_devices, ARRAY_SIZE(bast_devices)); } MACHINE_START(BAST, "Simtec-BAST") diff --git a/arch/arm/mach-s3c2410/mach-h1940.c b/arch/arm/mach-s3c2410/mach-h1940.c index d052ab2..5d5f00e 100644 --- a/arch/arm/mach-s3c2410/mach-h1940.c +++ b/arch/arm/mach-s3c2410/mach-h1940.c @@ -129,7 +129,6 @@ static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = { }; - /** * Set lcd on or off **/ @@ -188,17 +187,11 @@ static struct platform_device *h1940_devices[] __initdata = { &s3c_device_leds, }; -static struct s3c24xx_board h1940_board __initdata = { - .devices = h1940_devices, - .devices_count = ARRAY_SIZE(h1940_devices) -}; - static void __init h1940_map_io(void) { s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc)); s3c24xx_init_clocks(0); s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs)); - s3c24xx_set_board(&h1940_board); /* setup PM */ @@ -232,6 +225,8 @@ static void __init h1940_init(void) | (0x02 << S3C2410_PLLCON_PDIVSHIFT) | (0x03 << S3C2410_PLLCON_SDIVSHIFT); writel(tmp, S3C2410_UPLLCON); + + platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices)); } MACHINE_START(H1940, "IPAQ-H1940") diff --git a/arch/arm/mach-s3c2410/mach-n30.c b/arch/arm/mach-s3c2410/mach-n30.c index 261aa4c..412e50c 100644 --- a/arch/arm/mach-s3c2410/mach-n30.c +++ b/arch/arm/mach-s3c2410/mach-n30.c @@ -90,17 +90,11 @@ static struct s3c2410_platform_i2c n30_i2ccfg = { .max_freq = 10*1000, }; -static struct s3c24xx_board n30_board __initdata = { - .devices = n30_devices, - .devices_count = ARRAY_SIZE(n30_devices) -}; - static void __init n30_map_io(void) { s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc)); s3c24xx_init_clocks(0); s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs)); - s3c24xx_set_board(&n30_board); } static void __init n30_init_irq(void) @@ -120,6 +114,8 @@ static void __init n30_init(void) s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST | S3C2410_MISCCR_USBSUSPND0 | S3C2410_MISCCR_USBSUSPND1, 0x0); + + platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices)); } MACHINE_START(N30, "Acer-N30") diff --git a/arch/arm/mach-s3c2410/mach-otom.c b/arch/arm/mach-s3c2410/mach-otom.c index c78ab75..1f899fa 100644 --- a/arch/arm/mach-s3c2410/mach-otom.c +++ b/arch/arm/mach-s3c2410/mach-otom.c @@ -100,20 +100,17 @@ static struct platform_device *otom11_devices[] __initdata = { &otom_device_nor, }; -static struct s3c24xx_board otom11_board __initdata = { - .devices = otom11_devices, - .devices_count = ARRAY_SIZE(otom11_devices) -}; - - static void __init otom11_map_io(void) { s3c24xx_init_io(otom11_iodesc, ARRAY_SIZE(otom11_iodesc)); s3c24xx_init_clocks(0); s3c24xx_init_uarts(otom11_uartcfgs, ARRAY_SIZE(otom11_uartcfgs)); - s3c24xx_set_board(&otom11_board); } +static void __init otom11_init(void) +{ + platform_add_devices(otom11_devices, ARRAY_SIZE(otom11_devices)); +} MACHINE_START(OTOM, "Nex Vision - Otom 1.1") /* Maintainer: Guillaume GOURAT <guillaume.gourat@nexvision.tv> */ @@ -121,6 +118,7 @@ MACHINE_START(OTOM, "Nex Vision - Otom 1.1") .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc, .boot_params = S3C2410_SDRAM_PA + 0x100, .map_io = otom11_map_io, + .init_machine = otom11_init, .init_irq = s3c24xx_init_irq, .timer = &s3c24xx_timer, MACHINE_END diff --git a/arch/arm/mach-s3c2410/mach-qt2410.c b/arch/arm/mach-s3c2410/mach-qt2410.c index c6a4159..9cc4253 100644 --- a/arch/arm/mach-s3c2410/mach-qt2410.c +++ b/arch/arm/mach-s3c2410/mach-qt2410.c @@ -29,7 +29,6 @@ #include <linux/init.h> #include <linux/platform_device.h> #include <linux/serial_core.h> -#include <linux/mmc/protocol.h> #include <linux/spi/spi.h> #include <linux/spi/spi_bitbang.h> @@ -331,11 +330,6 @@ static struct platform_device *qt2410_devices[] __initdata = { &qt2410_led, }; -static struct s3c24xx_board qt2410_board __initdata = { - .devices = qt2410_devices, - .devices_count = ARRAY_SIZE(qt2410_devices) -}; - static struct mtd_partition qt2410_nand_part[] = { [0] = { .name = "U-Boot", @@ -405,7 +399,6 @@ static void __init qt2410_map_io(void) s3c24xx_init_io(qt2410_iodesc, ARRAY_SIZE(qt2410_iodesc)); s3c24xx_init_clocks(12*1000*1000); s3c24xx_init_uarts(smdk2410_uartcfgs, ARRAY_SIZE(smdk2410_uartcfgs)); - s3c24xx_set_board(&qt2410_board); } static void __init qt2410_machine_init(void) @@ -432,6 +425,7 @@ static void __init qt2410_machine_init(void) s3c2410_gpio_cfgpin(S3C2410_GPB5, S3C2410_GPIO_OUTPUT); + platform_add_devices(qt2410_devices, ARRAY_SIZE(qt2410_devices)); s3c2410_pm_init(); } diff --git a/arch/arm/mach-s3c2410/mach-smdk2410.c b/arch/arm/mach-s3c2410/mach-smdk2410.c index 57b8a80..5852d30 100644 --- a/arch/arm/mach-s3c2410/mach-smdk2410.c +++ b/arch/arm/mach-s3c2410/mach-smdk2410.c @@ -94,17 +94,17 @@ static struct platform_device *smdk2410_devices[] __initdata = { &s3c_device_iis, }; -static struct s3c24xx_board smdk2410_board __initdata = { - .devices = smdk2410_devices, - .devices_count = ARRAY_SIZE(smdk2410_devices) -}; - static void __init smdk2410_map_io(void) { s3c24xx_init_io(smdk2410_iodesc, ARRAY_SIZE(smdk2410_iodesc)); s3c24xx_init_clocks(0); s3c24xx_init_uarts(smdk2410_uartcfgs, ARRAY_SIZE(smdk2410_uartcfgs)); - s3c24xx_set_board(&smdk2410_board); +} + +static void __init smdk2410_init(void) +{ + platform_add_devices(smdk2410_devices, ARRAY_SIZE(smdk2410_devices)); + smdk_machine_init(); } MACHINE_START(SMDK2410, "SMDK2410") /* @TODO: request a new identifier and switch @@ -115,7 +115,7 @@ MACHINE_START(SMDK2410, "SMDK2410") /* @TODO: request a new identifier and switc .boot_params = S3C2410_SDRAM_PA + 0x100, .map_io = smdk2410_map_io, .init_irq = s3c24xx_init_irq, - .init_machine = smdk_machine_init, + .init_machine = smdk2410_init, .timer = &s3c24xx_timer, MACHINE_END diff --git a/arch/arm/mach-s3c2410/mach-vr1000.c b/arch/arm/mach-s3c2410/mach-vr1000.c index c947c75..7b624bb 100644 --- a/arch/arm/mach-s3c2410/mach-vr1000.c +++ b/arch/arm/mach-s3c2410/mach-vr1000.c @@ -384,13 +384,6 @@ static struct clk *vr1000_clocks[] = { &s3c24xx_uclk, }; -static struct s3c24xx_board vr1000_board __initdata = { - .devices = vr1000_devices, - .devices_count = ARRAY_SIZE(vr1000_devices), - .clocks = vr1000_clocks, - .clocks_count = ARRAY_SIZE(vr1000_clocks), -}; - static void vr1000_power_off(void) { s3c2410_gpio_cfgpin(S3C2410_GPB9, S3C2410_GPB9_OUTP); @@ -412,15 +405,19 @@ static void __init vr1000_map_io(void) s3c24xx_uclk.parent = &s3c24xx_clkout1; + s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks)); + pm_power_off = vr1000_power_off; s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc)); s3c24xx_init_clocks(0); s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs)); - s3c24xx_set_board(&vr1000_board); - usb_simtec_init(); } +static void __init vr1000_init(void) +{ + platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices)); +} MACHINE_START(VR1000, "Thorcom-VR1000") /* Maintainer: Ben Dooks <ben@simtec.co.uk> */ @@ -428,6 +425,7 @@ MACHINE_START(VR1000, "Thorcom-VR1000") .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc, .boot_params = S3C2410_SDRAM_PA + 0x100, .map_io = vr1000_map_io, + .init_machine = vr1000_init, .init_irq = s3c24xx_init_irq, .timer = &s3c24xx_timer, MACHINE_END diff --git a/arch/arm/mach-s3c2412/Kconfig b/arch/arm/mach-s3c2412/Kconfig index befc5fd..d5be5d0 100644 --- a/arch/arm/mach-s3c2412/Kconfig +++ b/arch/arm/mach-s3c2412/Kconfig @@ -47,6 +47,15 @@ config MACH_S3C2413 machine_is_s3c2413() will work when MACH_SMDK2413 is selected +config MACH_SMDK2412 + bool "SMDK2412" + select MACH_SMDK2413 + help + Say Y here if you are using an SMDK2412 + + Note, this shares support with SMDK2413, so will automatically + select MACH_SMDK2413. + config MACH_VSTMS bool "VMSTMS" select CPU_S3C2412 diff --git a/arch/arm/mach-s3c2412/irq.c b/arch/arm/mach-s3c2412/irq.c index e89dbdc..f0d6682 100644 --- a/arch/arm/mach-s3c2412/irq.c +++ b/arch/arm/mach-s3c2412/irq.c @@ -23,7 +23,6 @@ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/ioport.h> -#include <linux/ptrace.h> #include <linux/sysdev.h> #include <asm/hardware.h> diff --git a/arch/arm/mach-s3c2412/mach-smdk2413.c b/arch/arm/mach-s3c2412/mach-smdk2413.c index b5befce..063af09 100644 --- a/arch/arm/mach-s3c2412/mach-smdk2413.c +++ b/arch/arm/mach-s3c2412/mach-smdk2413.c @@ -110,11 +110,6 @@ static struct platform_device *smdk2413_devices[] __initdata = { &s3c_device_usbgadget, }; -static struct s3c24xx_board smdk2413_board __initdata = { - .devices = smdk2413_devices, - .devices_count = ARRAY_SIZE(smdk2413_devices) -}; - static void __init smdk2413_fixup(struct machine_desc *desc, struct tag *tags, char **cmdline, struct meminfo *mi) @@ -132,7 +127,6 @@ static void __init smdk2413_map_io(void) s3c24xx_init_io(smdk2413_iodesc, ARRAY_SIZE(smdk2413_iodesc)); s3c24xx_init_clocks(12000000); s3c24xx_init_uarts(smdk2413_uartcfgs, ARRAY_SIZE(smdk2413_uartcfgs)); - s3c24xx_set_board(&smdk2413_board); } static void __init smdk2413_machine_init(void) @@ -149,6 +143,7 @@ static void __init smdk2413_machine_init(void) s3c24xx_udc_set_platdata(&smdk2413_udc_cfg); + platform_add_devices(smdk2413_devices, ARRAY_SIZE(smdk2413_devices)); smdk_machine_init(); } diff --git a/arch/arm/mach-s3c2412/mach-vstms.c b/arch/arm/mach-s3c2412/mach-vstms.c index 4231b54..f2fbd65 100644 --- a/arch/arm/mach-s3c2412/mach-vstms.c +++ b/arch/arm/mach-s3c2412/mach-vstms.c @@ -129,11 +129,6 @@ static struct platform_device *vstms_devices[] __initdata = { &s3c_device_nand, }; -static struct s3c24xx_board vstms_board __initdata = { - .devices = vstms_devices, - .devices_count = ARRAY_SIZE(vstms_devices) -}; - static void __init vstms_fixup(struct machine_desc *desc, struct tag *tags, char **cmdline, struct meminfo *mi) @@ -153,7 +148,11 @@ static void __init vstms_map_io(void) s3c24xx_init_io(vstms_iodesc, ARRAY_SIZE(vstms_iodesc)); s3c24xx_init_clocks(12000000); s3c24xx_init_uarts(vstms_uartcfgs, ARRAY_SIZE(vstms_uartcfgs)); - s3c24xx_set_board(&vstms_board); +} + +static void __init vstms_init(void) +{ + platform_add_devices(vstms_devices, ARRAY_SIZE(vstms_devices)); } MACHINE_START(VSTMS, "VSTMS") @@ -163,6 +162,7 @@ MACHINE_START(VSTMS, "VSTMS") .fixup = vstms_fixup, .init_irq = s3c24xx_init_irq, + .init_machine = vstms_init, .map_io = vstms_map_io, .timer = &s3c24xx_timer, MACHINE_END diff --git a/arch/arm/mach-s3c2440/irq.c b/arch/arm/mach-s3c2440/irq.c index 1069d13..a87608b 100644 --- a/arch/arm/mach-s3c2440/irq.c +++ b/arch/arm/mach-s3c2440/irq.c @@ -23,7 +23,6 @@ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/ioport.h> -#include <linux/ptrace.h> #include <linux/sysdev.h> #include <asm/hardware.h> diff --git a/arch/arm/mach-s3c2440/mach-anubis.c b/arch/arm/mach-s3c2440/mach-anubis.c index 3f0288e..b5d387e 100644 --- a/arch/arm/mach-s3c2440/mach-anubis.c +++ b/arch/arm/mach-s3c2440/mach-anubis.c @@ -281,13 +281,6 @@ static struct clk *anubis_clocks[] = { &s3c24xx_uclk, }; -static struct s3c24xx_board anubis_board __initdata = { - .devices = anubis_devices, - .devices_count = ARRAY_SIZE(anubis_devices), - .clocks = anubis_clocks, - .clocks_count = ARRAY_SIZE(anubis_clocks), -}; - static void __init anubis_map_io(void) { /* initialise the clocks */ @@ -303,23 +296,31 @@ static void __init anubis_map_io(void) s3c24xx_uclk.parent = &s3c24xx_clkout1; + s3c24xx_register_clocks(anubis_clocks, ARRAY_SIZE(anubis_clocks)); + s3c_device_nand.dev.platform_data = &anubis_nand_info; s3c24xx_init_io(anubis_iodesc, ARRAY_SIZE(anubis_iodesc)); s3c24xx_init_clocks(0); s3c24xx_init_uarts(anubis_uartcfgs, ARRAY_SIZE(anubis_uartcfgs)); - s3c24xx_set_board(&anubis_board); /* ensure that the GPIO is setup */ s3c2410_gpio_setpin(S3C2410_GPA0, 1); } +static void __init anubis_init(void) +{ + platform_add_devices(anubis_devices, ARRAY_SIZE(anubis_devices)); +} + + MACHINE_START(ANUBIS, "Simtec-Anubis") /* Maintainer: Ben Dooks <ben@simtec.co.uk> */ .phys_io = S3C2410_PA_UART, .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc, .boot_params = S3C2410_SDRAM_PA + 0x100, .map_io = anubis_map_io, + .init_machine = anubis_init, .init_irq = s3c24xx_init_irq, .timer = &s3c24xx_timer, MACHINE_END diff --git a/arch/arm/mach-s3c2440/mach-nexcoder.c b/arch/arm/mach-s3c2440/mach-nexcoder.c index 6d551d8..5e61f21 100644 --- a/arch/arm/mach-s3c2440/mach-nexcoder.c +++ b/arch/arm/mach-s3c2440/mach-nexcoder.c @@ -116,12 +116,6 @@ static struct platform_device *nexcoder_devices[] __initdata = { &nexcoder_device_nor, }; -static struct s3c24xx_board nexcoder_board __initdata = { - .devices = nexcoder_devices, - .devices_count = ARRAY_SIZE(nexcoder_devices), -}; - - static void __init nexcoder_sensorboard_init(void) { // Initialize SCCB bus @@ -142,10 +136,14 @@ static void __init nexcoder_map_io(void) s3c24xx_init_io(nexcoder_iodesc, ARRAY_SIZE(nexcoder_iodesc)); s3c24xx_init_clocks(0); s3c24xx_init_uarts(nexcoder_uartcfgs, ARRAY_SIZE(nexcoder_uartcfgs)); - s3c24xx_set_board(&nexcoder_board); + nexcoder_sensorboard_init(); } +static void __init nexcoder_init(void) +{ + platform_add_devices(nexcoder_devices, ARRAY_SIZE(nexcoder_devices)); +}; MACHINE_START(NEXCODER_2440, "NexVision - Nexcoder 2440") /* Maintainer: Guillaume GOURAT <guillaume.gourat@nexvision.tv> */ @@ -153,6 +151,7 @@ MACHINE_START(NEXCODER_2440, "NexVision - Nexcoder 2440") .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc, .boot_params = S3C2410_SDRAM_PA + 0x100, .map_io = nexcoder_map_io, + .init_machine = nexcoder_init, .init_irq = s3c24xx_init_irq, .timer = &s3c24xx_timer, MACHINE_END diff --git a/arch/arm/mach-s3c2440/mach-osiris.c b/arch/arm/mach-s3c2440/mach-osiris.c index 2ed8e51..324f5a2 100644 --- a/arch/arm/mach-s3c2440/mach-osiris.c +++ b/arch/arm/mach-s3c2440/mach-osiris.c @@ -251,13 +251,6 @@ static struct clk *osiris_clocks[] = { &s3c24xx_uclk, }; -static struct s3c24xx_board osiris_board __initdata = { - .devices = osiris_devices, - .devices_count = ARRAY_SIZE(osiris_devices), - .clocks = osiris_clocks, - .clocks_count = ARRAY_SIZE(osiris_clocks), -}; - static void __init osiris_map_io(void) { unsigned long flags; @@ -275,12 +268,13 @@ static void __init osiris_map_io(void) s3c24xx_uclk.parent = &s3c24xx_clkout1; + s3c24xx_register_clocks(osiris_clocks, ARRAY_SIZE(osiris_clocks)); + s3c_device_nand.dev.platform_data = &osiris_nand_info; s3c24xx_init_io(osiris_iodesc, ARRAY_SIZE(osiris_iodesc)); s3c24xx_init_clocks(0); s3c24xx_init_uarts(osiris_uartcfgs, ARRAY_SIZE(osiris_uartcfgs)); - s3c24xx_set_board(&osiris_board); /* fix bus configuration (nBE settings wrong on ABLE pre v2.20) */ @@ -292,12 +286,18 @@ static void __init osiris_map_io(void) s3c2410_gpio_setpin(S3C2410_GPA0, 1); } +static void __init osiris_init(void) +{ + platform_add_devices(osiris_devices, ARRAY_SIZE(osiris_devices)); +}; + MACHINE_START(OSIRIS, "Simtec-OSIRIS") /* Maintainer: Ben Dooks <ben@simtec.co.uk> */ .phys_io = S3C2410_PA_UART, .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc, .boot_params = S3C2410_SDRAM_PA + 0x100, .map_io = osiris_map_io, + .init_machine = osiris_init, .init_irq = s3c24xx_init_irq, .timer = &s3c24xx_timer, MACHINE_END diff --git a/arch/arm/mach-s3c2440/mach-rx3715.c b/arch/arm/mach-s3c2440/mach-rx3715.c index ae1d0a8..c3cc4bf 100644 --- a/arch/arm/mach-s3c2440/mach-rx3715.c +++ b/arch/arm/mach-s3c2440/mach-rx3715.c @@ -202,11 +202,6 @@ static struct platform_device *rx3715_devices[] __initdata = { &s3c_device_nand, }; -static struct s3c24xx_board rx3715_board __initdata = { - .devices = rx3715_devices, - .devices_count = ARRAY_SIZE(rx3715_devices) -}; - static void __init rx3715_map_io(void) { s3c_device_nand.dev.platform_data = &rx3715_nand_info; @@ -214,7 +209,6 @@ static void __init rx3715_map_io(void) s3c24xx_init_io(rx3715_iodesc, ARRAY_SIZE(rx3715_iodesc)); s3c24xx_init_clocks(16934000); s3c24xx_init_uarts(rx3715_uartcfgs, ARRAY_SIZE(rx3715_uartcfgs)); - s3c24xx_set_board(&rx3715_board); } static void __init rx3715_init_irq(void) @@ -230,9 +224,9 @@ static void __init rx3715_init_machine(void) s3c2410_pm_init(); s3c24xx_fb_set_platdata(&rx3715_lcdcfg); + platform_add_devices(rx3715_devices, ARRAY_SIZE(rx3715_devices)); } - MACHINE_START(RX3715, "IPAQ-RX3715") /* Maintainer: Ben Dooks <ben@fluff.org> */ .phys_io = S3C2410_PA_UART, diff --git a/arch/arm/mach-s3c2440/mach-smdk2440.c b/arch/arm/mach-s3c2440/mach-smdk2440.c index c17eb5b..e167254 100644 --- a/arch/arm/mach-s3c2440/mach-smdk2440.c +++ b/arch/arm/mach-s3c2440/mach-smdk2440.c @@ -174,23 +174,18 @@ static struct platform_device *smdk2440_devices[] __initdata = { &s3c_device_iis, }; -static struct s3c24xx_board smdk2440_board __initdata = { - .devices = smdk2440_devices, - .devices_count = ARRAY_SIZE(smdk2440_devices) -}; - static void __init smdk2440_map_io(void) { s3c24xx_init_io(smdk2440_iodesc, ARRAY_SIZE(smdk2440_iodesc)); s3c24xx_init_clocks(16934400); s3c24xx_init_uarts(smdk2440_uartcfgs, ARRAY_SIZE(smdk2440_uartcfgs)); - s3c24xx_set_board(&smdk2440_board); } static void __init smdk2440_machine_init(void) { s3c24xx_fb_set_platdata(&smdk2440_lcd_cfg); + platform_add_devices(smdk2440_devices, ARRAY_SIZE(smdk2440_devices)); smdk_machine_init(); } diff --git a/arch/arm/mach-s3c2443/irq.c b/arch/arm/mach-s3c2443/irq.c index 7565735..6cd4818 100644 --- a/arch/arm/mach-s3c2443/irq.c +++ b/arch/arm/mach-s3c2443/irq.c @@ -23,7 +23,6 @@ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/ioport.h> -#include <linux/ptrace.h> #include <linux/sysdev.h> #include <asm/hardware.h> diff --git a/arch/arm/mach-s3c2443/mach-smdk2443.c b/arch/arm/mach-s3c2443/mach-smdk2443.c index e82aaff..b71ee53 100644 --- a/arch/arm/mach-s3c2443/mach-smdk2443.c +++ b/arch/arm/mach-s3c2443/mach-smdk2443.c @@ -106,21 +106,16 @@ static struct platform_device *smdk2443_devices[] __initdata = { &s3c_device_i2c, }; -static struct s3c24xx_board smdk2443_board __initdata = { - .devices = smdk2443_devices, - .devices_count = ARRAY_SIZE(smdk2443_devices) -}; - static void __init smdk2443_map_io(void) { s3c24xx_init_io(smdk2443_iodesc, ARRAY_SIZE(smdk2443_iodesc)); s3c24xx_init_clocks(12000000); s3c24xx_init_uarts(smdk2443_uartcfgs, ARRAY_SIZE(smdk2443_uartcfgs)); - s3c24xx_set_board(&smdk2443_board); } static void __init smdk2443_machine_init(void) { + platform_add_devices(smdk2443_devices, ARRAY_SIZE(smdk2443_devices)); smdk_machine_init(); } diff --git a/arch/arm/mach-sa1100/clock.c b/arch/arm/mach-sa1100/clock.c index b1e8fd7..fc97fe5 100644 --- a/arch/arm/mach-sa1100/clock.c +++ b/arch/arm/mach-sa1100/clock.c @@ -9,14 +9,17 @@ #include <linux/string.h> #include <linux/clk.h> #include <linux/spinlock.h> +#include <linux/mutex.h> #include <asm/hardware.h> -#include <asm/semaphore.h> +/* + * Very simple clock implementation - we only have one clock to + * deal with at the moment, so we only match using the "name". + */ struct clk { struct list_head node; unsigned long rate; - struct module *owner; const char *name; unsigned int enabled; void (*enable)(void); @@ -24,21 +27,21 @@ struct clk { }; static LIST_HEAD(clocks); -static DECLARE_MUTEX(clocks_sem); +static DEFINE_MUTEX(clocks_mutex); static DEFINE_SPINLOCK(clocks_lock); struct clk *clk_get(struct device *dev, const char *id) { struct clk *p, *clk = ERR_PTR(-ENOENT); - down(&clocks_sem); + mutex_lock(&clocks_mutex); list_for_each_entry(p, &clocks, node) { - if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) { + if (strcmp(id, p->name) == 0) { clk = p; break; } } - up(&clocks_sem); + mutex_unlock(&clocks_mutex); return clk; } @@ -46,7 +49,6 @@ EXPORT_SYMBOL(clk_get); void clk_put(struct clk *clk) { - module_put(clk->owner); } EXPORT_SYMBOL(clk_put); @@ -109,18 +111,18 @@ static struct clk clk_gpio27 = { int clk_register(struct clk *clk) { - down(&clocks_sem); + mutex_lock(&clocks_mutex); list_add(&clk->node, &clocks); - up(&clocks_sem); + mutex_unlock(&clocks_mutex); return 0; } EXPORT_SYMBOL(clk_register); void clk_unregister(struct clk *clk) { - down(&clocks_sem); + mutex_lock(&clocks_mutex); list_del(&clk->node); - up(&clocks_sem); + mutex_unlock(&clocks_mutex); } EXPORT_SYMBOL(clk_unregister); diff --git a/arch/arm/mach-sa1100/irq.c b/arch/arm/mach-sa1100/irq.c index 5642aec..edf3347 100644 --- a/arch/arm/mach-sa1100/irq.c +++ b/arch/arm/mach-sa1100/irq.c @@ -14,7 +14,6 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/ioport.h> -#include <linux/ptrace.h> #include <linux/sysdev.h> #include <asm/hardware.h> diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c index 075d4d1..d7c038a 100644 --- a/arch/arm/mach-sa1100/neponset.c +++ b/arch/arm/mach-sa1100/neponset.c @@ -4,7 +4,6 @@ */ #include <linux/kernel.h> #include <linux/init.h> -#include <linux/ptrace.h> #include <linux/tty.h> #include <linux/ioport.h> #include <linux/serial_core.h> diff --git a/arch/arm/mach-shark/irq.c b/arch/arm/mach-shark/irq.c index 00a6c14..5b0c6af 100644 --- a/arch/arm/mach-shark/irq.c +++ b/arch/arm/mach-shark/irq.c @@ -10,7 +10,6 @@ #include <linux/init.h> #include <linux/fs.h> -#include <linux/ptrace.h> #include <linux/interrupt.h> #include <asm/irq.h> diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index bf71507c..1275aa7 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -26,6 +26,8 @@ #include <linux/interrupt.h> #include <linux/amba/bus.h> #include <linux/amba/clcd.h> +#include <linux/clocksource.h> +#include <linux/clockchips.h> #include <asm/cnt32_to_63.h> #include <asm/system.h> @@ -828,59 +830,61 @@ void __init versatile_init(void) #define TICKS2USECS(x) ((x) / TICKS_PER_uSEC) #endif -/* - * Returns number of ms since last clock interrupt. Note that interrupts - * will have been disabled by do_gettimeoffset() - */ -static unsigned long versatile_gettimeoffset(void) +static void timer_set_mode(enum clock_event_mode mode, + struct clock_event_device *clk) { - unsigned long ticks1, ticks2, status; + unsigned long ctrl; - /* - * Get the current number of ticks. Note that there is a race - * condition between us reading the timer and checking for - * an interrupt. We get around this by ensuring that the - * counter has not reloaded between our two reads. - */ - ticks2 = readl(TIMER0_VA_BASE + TIMER_VALUE) & 0xffff; - do { - ticks1 = ticks2; - status = __raw_readl(VA_IC_BASE + VIC_RAW_STATUS); - ticks2 = readl(TIMER0_VA_BASE + TIMER_VALUE) & 0xffff; - } while (ticks2 > ticks1); + switch(mode) { + case CLOCK_EVT_MODE_PERIODIC: + writel(TIMER_RELOAD, TIMER0_VA_BASE + TIMER_LOAD); - /* - * Number of ticks since last interrupt. - */ - ticks1 = TIMER_RELOAD - ticks2; + ctrl = TIMER_CTRL_PERIODIC; + ctrl |= TIMER_CTRL_32BIT | TIMER_CTRL_IE | TIMER_CTRL_ENABLE; + break; + case CLOCK_EVT_MODE_ONESHOT: + /* period set, and timer enabled in 'next_event' hook */ + ctrl = TIMER_CTRL_ONESHOT; + ctrl |= TIMER_CTRL_32BIT | TIMER_CTRL_IE; + break; + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: + default: + ctrl = 0; + } - /* - * Interrupt pending? If so, we've reloaded once already. - * - * FIXME: Need to check this is effectively timer 0 that expires - */ - if (status & IRQMASK_TIMERINT0_1) - ticks1 += TIMER_RELOAD; + writel(ctrl, TIMER0_VA_BASE + TIMER_CTRL); +} - /* - * Convert the ticks to usecs - */ - return TICKS2USECS(ticks1); +static int timer_set_next_event(unsigned long evt, + struct clock_event_device *unused) +{ + unsigned long ctrl = readl(TIMER0_VA_BASE + TIMER_CTRL); + + writel(evt, TIMER0_VA_BASE + TIMER_LOAD); + writel(ctrl | TIMER_CTRL_ENABLE, TIMER0_VA_BASE + TIMER_CTRL); + + return 0; } +static struct clock_event_device timer0_clockevent = { + .name = "timer0", + .shift = 32, + .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, + .set_mode = timer_set_mode, + .set_next_event = timer_set_next_event, +}; + /* * IRQ handler for the timer */ static irqreturn_t versatile_timer_interrupt(int irq, void *dev_id) { - write_seqlock(&xtime_lock); + struct clock_event_device *evt = &timer0_clockevent; - // ...clear the interrupt writel(1, TIMER0_VA_BASE + TIMER_INTCLR); - timer_tick(); - - write_sequnlock(&xtime_lock); + evt->event_handler(evt); return IRQ_HANDLED; } @@ -891,6 +895,36 @@ static struct irqaction versatile_timer_irq = { .handler = versatile_timer_interrupt, }; +static cycle_t versatile_get_cycles(void) +{ + return ~readl(TIMER3_VA_BASE + TIMER_VALUE); +} + +static struct clocksource clocksource_versatile = { + .name = "timer3", + .rating = 200, + .read = versatile_get_cycles, + .mask = CLOCKSOURCE_MASK(32), + .shift = 20, + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +static int __init versatile_clocksource_init(void) +{ + /* setup timer3 as free-running clocksource */ + writel(0, TIMER3_VA_BASE + TIMER_CTRL); + writel(0xffffffff, TIMER3_VA_BASE + TIMER_LOAD); + writel(0xffffffff, TIMER3_VA_BASE + TIMER_VALUE); + writel(TIMER_CTRL_32BIT | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC, + TIMER3_VA_BASE + TIMER_CTRL); + + clocksource_versatile.mult = + clocksource_khz2mult(1000, clocksource_versatile.shift); + clocksource_register(&clocksource_versatile); + + return 0; +} + /* * Set up timer interrupt, and return the current time in seconds. */ @@ -918,18 +952,25 @@ static void __init versatile_timer_init(void) writel(0, TIMER2_VA_BASE + TIMER_CTRL); writel(0, TIMER3_VA_BASE + TIMER_CTRL); - writel(TIMER_RELOAD, TIMER0_VA_BASE + TIMER_LOAD); - writel(TIMER_RELOAD, TIMER0_VA_BASE + TIMER_VALUE); - writel(TIMER_DIVISOR | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC | - TIMER_CTRL_IE, TIMER0_VA_BASE + TIMER_CTRL); - /* * Make irqs happen for the system timer */ setup_irq(IRQ_TIMERINT0_1, &versatile_timer_irq); + + versatile_clocksource_init(); + + timer0_clockevent.mult = + div_sc(1000000, NSEC_PER_SEC, timer0_clockevent.shift); + timer0_clockevent.max_delta_ns = + clockevent_delta2ns(0xffffffff, &timer0_clockevent); + timer0_clockevent.min_delta_ns = + clockevent_delta2ns(0xf, &timer0_clockevent); + + timer0_clockevent.cpumask = cpumask_of_cpu(0); + clockevents_register_device(&timer0_clockevent); } struct sys_timer versatile_timer = { .init = versatile_timer_init, - .offset = versatile_gettimeoffset, }; + diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c index 5cd0b5d..ba58223 100644 --- a/arch/arm/mach-versatile/pci.c +++ b/arch/arm/mach-versatile/pci.c @@ -16,7 +16,6 @@ */ #include <linux/kernel.h> #include <linux/pci.h> -#include <linux/ptrace.h> #include <linux/slab.h> #include <linux/ioport.h> #include <linux/interrupt.h> diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c index aa109f0..19ca333 100644 --- a/arch/arm/mm/alignment.c +++ b/arch/arm/mm/alignment.c @@ -15,7 +15,6 @@ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/string.h> -#include <linux/ptrace.h> #include <linux/proc_fs.h> #include <linux/init.h> diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 9fd6d2e..5d9ce7d 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -10,7 +10,6 @@ */ #include <linux/module.h> #include <linux/signal.h> -#include <linux/ptrace.h> #include <linux/mm.h> #include <linux/init.h> @@ -438,7 +437,7 @@ hook_fault_code(int nr, int (*fn)(unsigned long, unsigned int, struct pt_regs *) /* * Dispatch a data abort to the relevant handler. */ -asmlinkage void +asmlinkage void __exception do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs) { const struct fsr_info *inf = fsr_info + (fsr & 15) + ((fsr & (1 << 10)) >> 6); @@ -457,7 +456,7 @@ do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs) notify_die("", regs, &info, fsr, 0); } -asmlinkage void +asmlinkage void __exception do_PrefetchAbort(unsigned long addr, struct pt_regs *regs) { do_translation_fault(addr, 0, regs); diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 7760193e..c0ad7c0 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -9,7 +9,6 @@ */ #include <linux/kernel.h> #include <linux/errno.h> -#include <linux/ptrace.h> #include <linux/swap.h> #include <linux/init.h> #include <linux/bootmem.h> diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c index 0ac615c..d6167ad 100644 --- a/arch/arm/mm/ioremap.c +++ b/arch/arm/mm/ioremap.c @@ -32,6 +32,9 @@ #include <asm/tlbflush.h> #include <asm/sizes.h> +#include <asm/mach/map.h> +#include "mm.h" + /* * Used by ioremap() and iounmap() code to mark (super)section-mapped * I/O regions in vm_struct->flags field. @@ -39,8 +42,9 @@ #define VM_ARM_SECTION_MAPPING 0x80000000 static int remap_area_pte(pmd_t *pmd, unsigned long addr, unsigned long end, - unsigned long phys_addr, pgprot_t prot) + unsigned long phys_addr, const struct mem_type *type) { + pgprot_t prot = __pgprot(type->prot_pte); pte_t *pte; pte = pte_alloc_kernel(pmd, addr); @@ -51,7 +55,8 @@ static int remap_area_pte(pmd_t *pmd, unsigned long addr, unsigned long end, if (!pte_none(*pte)) goto bad; - set_pte_ext(pte, pfn_pte(phys_addr >> PAGE_SHIFT, prot), 0); + set_pte_ext(pte, pfn_pte(phys_addr >> PAGE_SHIFT, prot), + type->prot_pte_ext); phys_addr += PAGE_SIZE; } while (pte++, addr += PAGE_SIZE, addr != end); return 0; @@ -63,7 +68,7 @@ static int remap_area_pte(pmd_t *pmd, unsigned long addr, unsigned long end, static inline int remap_area_pmd(pgd_t *pgd, unsigned long addr, unsigned long end, unsigned long phys_addr, - pgprot_t prot) + const struct mem_type *type) { unsigned long next; pmd_t *pmd; @@ -75,7 +80,7 @@ static inline int remap_area_pmd(pgd_t *pgd, unsigned long addr, do { next = pmd_addr_end(addr, end); - ret = remap_area_pte(pmd, addr, next, phys_addr, prot); + ret = remap_area_pte(pmd, addr, next, phys_addr, type); if (ret) return ret; phys_addr += next - addr; @@ -84,13 +89,11 @@ static inline int remap_area_pmd(pgd_t *pgd, unsigned long addr, } static int remap_area_pages(unsigned long start, unsigned long pfn, - unsigned long size, unsigned long flags) + size_t size, const struct mem_type *type) { unsigned long addr = start; unsigned long next, end = start + size; unsigned long phys_addr = __pfn_to_phys(pfn); - pgprot_t prot = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | - L_PTE_DIRTY | L_PTE_WRITE | flags); pgd_t *pgd; int err = 0; @@ -98,7 +101,7 @@ static int remap_area_pages(unsigned long start, unsigned long pfn, pgd = pgd_offset_k(addr); do { next = pgd_addr_end(addr, end); - err = remap_area_pmd(pgd, addr, next, phys_addr, prot); + err = remap_area_pmd(pgd, addr, next, phys_addr, type); if (err) break; phys_addr += next - addr; @@ -178,9 +181,9 @@ static void unmap_area_sections(unsigned long virt, unsigned long size) static int remap_area_sections(unsigned long virt, unsigned long pfn, - unsigned long size, unsigned long flags) + size_t size, const struct mem_type *type) { - unsigned long prot, addr = virt, end = virt + size; + unsigned long addr = virt, end = virt + size; pgd_t *pgd; /* @@ -189,23 +192,13 @@ remap_area_sections(unsigned long virt, unsigned long pfn, */ unmap_area_sections(virt, size); - prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO) | - (flags & (L_PTE_CACHEABLE | L_PTE_BUFFERABLE)); - - /* - * ARMv6 and above need XN set to prevent speculative prefetches - * hitting IO. - */ - if (cpu_architecture() >= CPU_ARCH_ARMv6) - prot |= PMD_SECT_XN; - pgd = pgd_offset_k(addr); do { pmd_t *pmd = pmd_offset(pgd, addr); - pmd[0] = __pmd(__pfn_to_phys(pfn) | prot); + pmd[0] = __pmd(__pfn_to_phys(pfn) | type->prot_sect); pfn += SZ_1M >> PAGE_SHIFT; - pmd[1] = __pmd(__pfn_to_phys(pfn) | prot); + pmd[1] = __pmd(__pfn_to_phys(pfn) | type->prot_sect); pfn += SZ_1M >> PAGE_SHIFT; flush_pmd_entry(pmd); @@ -218,9 +211,9 @@ remap_area_sections(unsigned long virt, unsigned long pfn, static int remap_area_supersections(unsigned long virt, unsigned long pfn, - unsigned long size, unsigned long flags) + size_t size, const struct mem_type *type) { - unsigned long prot, addr = virt, end = virt + size; + unsigned long addr = virt, end = virt + size; pgd_t *pgd; /* @@ -229,22 +222,12 @@ remap_area_supersections(unsigned long virt, unsigned long pfn, */ unmap_area_sections(virt, size); - prot = PMD_TYPE_SECT | PMD_SECT_SUPER | PMD_SECT_AP_WRITE | - PMD_DOMAIN(DOMAIN_IO) | - (flags & (L_PTE_CACHEABLE | L_PTE_BUFFERABLE)); - - /* - * ARMv6 and above need XN set to prevent speculative prefetches - * hitting IO. - */ - if (cpu_architecture() >= CPU_ARCH_ARMv6) - prot |= PMD_SECT_XN; - pgd = pgd_offset_k(virt); do { unsigned long super_pmd_val, i; - super_pmd_val = __pfn_to_phys(pfn) | prot; + super_pmd_val = __pfn_to_phys(pfn) | type->prot_sect | + PMD_SECT_SUPER; super_pmd_val |= ((pfn >> (32 - PAGE_SHIFT)) & 0xf) << 20; for (i = 0; i < 8; i++) { @@ -279,9 +262,10 @@ remap_area_supersections(unsigned long virt, unsigned long pfn, * mapping. See include/asm-arm/proc-armv/pgtable.h for more information. */ void __iomem * -__ioremap_pfn(unsigned long pfn, unsigned long offset, size_t size, - unsigned long flags) +__arm_ioremap_pfn(unsigned long pfn, unsigned long offset, size_t size, + unsigned int mtype) { + const struct mem_type *type; int err; unsigned long addr; struct vm_struct * area; @@ -292,6 +276,10 @@ __ioremap_pfn(unsigned long pfn, unsigned long offset, size_t size, if (pfn >= 0x100000 && (__pfn_to_phys(pfn) & ~SUPERSECTION_MASK)) return NULL; + type = get_mem_type(mtype); + if (!type) + return NULL; + size = PAGE_ALIGN(size); area = get_vm_area(size, VM_IOREMAP); @@ -302,16 +290,16 @@ __ioremap_pfn(unsigned long pfn, unsigned long offset, size_t size, #ifndef CONFIG_SMP if (DOMAIN_IO == 0 && (((cpu_architecture() >= CPU_ARCH_ARMv6) && (get_cr() & CR_XP)) || - cpu_is_xsc3()) && + cpu_is_xsc3()) && pfn >= 0x100000 && !((__pfn_to_phys(pfn) | size | addr) & ~SUPERSECTION_MASK)) { area->flags |= VM_ARM_SECTION_MAPPING; - err = remap_area_supersections(addr, pfn, size, flags); + err = remap_area_supersections(addr, pfn, size, type); } else if (!((__pfn_to_phys(pfn) | size | addr) & ~PMD_MASK)) { area->flags |= VM_ARM_SECTION_MAPPING; - err = remap_area_sections(addr, pfn, size, flags); + err = remap_area_sections(addr, pfn, size, type); } else #endif - err = remap_area_pages(addr, pfn, size, flags); + err = remap_area_pages(addr, pfn, size, type); if (err) { vunmap((void *)addr); @@ -321,10 +309,10 @@ __ioremap_pfn(unsigned long pfn, unsigned long offset, size_t size, flush_cache_vmap(addr, addr + size); return (void __iomem *) (offset + addr); } -EXPORT_SYMBOL(__ioremap_pfn); +EXPORT_SYMBOL(__arm_ioremap_pfn); void __iomem * -__ioremap(unsigned long phys_addr, size_t size, unsigned long flags) +__arm_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype) { unsigned long last_addr; unsigned long offset = phys_addr & ~PAGE_MASK; @@ -342,9 +330,9 @@ __ioremap(unsigned long phys_addr, size_t size, unsigned long flags) */ size = PAGE_ALIGN(last_addr + 1) - phys_addr; - return __ioremap_pfn(pfn, offset, size, flags); + return __arm_ioremap_pfn(pfn, offset, size, mtype); } -EXPORT_SYMBOL(__ioremap); +EXPORT_SYMBOL(__arm_ioremap); void __iounmap(volatile void __iomem *addr) { diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h index a44e309..7647c59 100644 --- a/arch/arm/mm/mm.h +++ b/arch/arm/mm/mm.h @@ -16,6 +16,16 @@ static inline pmd_t *pmd_off_k(unsigned long virt) return pmd_off(pgd_offset_k(virt), virt); } +struct mem_type { + unsigned int prot_pte; + unsigned int prot_pte_ext; + unsigned int prot_l1; + unsigned int prot_sect; + unsigned int domain; +}; + +const struct mem_type *get_mem_type(unsigned int type); + #endif struct map_desc; diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c index b0b5f46..2c4c242 100644 --- a/arch/arm/mm/mmap.c +++ b/arch/arm/mm/mmap.c @@ -49,8 +49,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, #endif /* - * We should enforce the MAP_FIXED case. However, currently - * the generic kernel code doesn't allow us to handle this. + * We enforce the MAP_FIXED case. */ if (flags & MAP_FIXED) { if (aliasing && flags & MAP_SHARED && addr & (SHMLBA - 1)) diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 94fd4bf..2ba1530 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -176,28 +176,42 @@ void adjust_cr(unsigned long mask, unsigned long set) } #endif -struct mem_types { - unsigned int prot_pte; - unsigned int prot_l1; - unsigned int prot_sect; - unsigned int domain; -}; - -static struct mem_types mem_types[] __initdata = { - [MT_DEVICE] = { - .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | - L_PTE_WRITE, - .prot_l1 = PMD_TYPE_TABLE, - .prot_sect = PMD_TYPE_SECT | PMD_BIT4 | PMD_SECT_UNCACHED | - PMD_SECT_AP_WRITE, - .domain = DOMAIN_IO, +#define PROT_PTE_DEVICE L_PTE_PRESENT|L_PTE_YOUNG|L_PTE_DIRTY|L_PTE_WRITE +#define PROT_SECT_DEVICE PMD_TYPE_SECT|PMD_SECT_XN|PMD_SECT_AP_WRITE + +static struct mem_type mem_types[] = { + [MT_DEVICE] = { /* Strongly ordered / ARMv6 shared device */ + .prot_pte = PROT_PTE_DEVICE, + .prot_l1 = PMD_TYPE_TABLE, + .prot_sect = PROT_SECT_DEVICE | PMD_SECT_UNCACHED, + .domain = DOMAIN_IO, + }, + [MT_DEVICE_NONSHARED] = { /* ARMv6 non-shared device */ + .prot_pte = PROT_PTE_DEVICE, + .prot_pte_ext = PTE_EXT_TEX(2), + .prot_l1 = PMD_TYPE_TABLE, + .prot_sect = PROT_SECT_DEVICE | PMD_SECT_TEX(2), + .domain = DOMAIN_IO, + }, + [MT_DEVICE_CACHED] = { /* ioremap_cached */ + .prot_pte = PROT_PTE_DEVICE | L_PTE_CACHEABLE | L_PTE_BUFFERABLE, + .prot_l1 = PMD_TYPE_TABLE, + .prot_sect = PROT_SECT_DEVICE | PMD_SECT_WB, + .domain = DOMAIN_IO, + }, + [MT_DEVICE_IXP2000] = { /* IXP2400 requires XCB=101 for on-chip I/O */ + .prot_pte = PROT_PTE_DEVICE, + .prot_l1 = PMD_TYPE_TABLE, + .prot_sect = PROT_SECT_DEVICE | PMD_SECT_BUFFERABLE | + PMD_SECT_TEX(1), + .domain = DOMAIN_IO, }, [MT_CACHECLEAN] = { - .prot_sect = PMD_TYPE_SECT | PMD_BIT4, + .prot_sect = PMD_TYPE_SECT | PMD_SECT_XN, .domain = DOMAIN_KERNEL, }, [MT_MINICLEAN] = { - .prot_sect = PMD_TYPE_SECT | PMD_BIT4 | PMD_SECT_MINICACHE, + .prot_sect = PMD_TYPE_SECT | PMD_SECT_XN | PMD_SECT_MINICACHE, .domain = DOMAIN_KERNEL, }, [MT_LOW_VECTORS] = { @@ -213,30 +227,20 @@ static struct mem_types mem_types[] __initdata = { .domain = DOMAIN_USER, }, [MT_MEMORY] = { - .prot_sect = PMD_TYPE_SECT | PMD_BIT4 | PMD_SECT_AP_WRITE, + .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE, .domain = DOMAIN_KERNEL, }, [MT_ROM] = { - .prot_sect = PMD_TYPE_SECT | PMD_BIT4, + .prot_sect = PMD_TYPE_SECT, .domain = DOMAIN_KERNEL, }, - [MT_IXP2000_DEVICE] = { /* IXP2400 requires XCB=101 for on-chip I/O */ - .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | - L_PTE_WRITE, - .prot_l1 = PMD_TYPE_TABLE, - .prot_sect = PMD_TYPE_SECT | PMD_BIT4 | PMD_SECT_UNCACHED | - PMD_SECT_AP_WRITE | PMD_SECT_BUFFERABLE | - PMD_SECT_TEX(1), - .domain = DOMAIN_IO, - }, - [MT_NONSHARED_DEVICE] = { - .prot_l1 = PMD_TYPE_TABLE, - .prot_sect = PMD_TYPE_SECT | PMD_BIT4 | PMD_SECT_NONSHARED_DEV | - PMD_SECT_AP_WRITE, - .domain = DOMAIN_IO, - } }; +const struct mem_type *get_mem_type(unsigned int type) +{ + return type < ARRAY_SIZE(mem_types) ? &mem_types[type] : NULL; +} + /* * Adjust the PMD section entries according to the CPU in use. */ @@ -262,20 +266,23 @@ static void __init build_mem_type_table(void) } /* - * Xscale must not have PMD bit 4 set for section mappings. + * ARMv5 and lower, bit 4 must be set for page tables. + * (was: cache "update-able on write" bit on ARM610) + * However, Xscale cores require this bit to be cleared. */ - if (cpu_is_xscale()) - for (i = 0; i < ARRAY_SIZE(mem_types); i++) + if (cpu_is_xscale()) { + for (i = 0; i < ARRAY_SIZE(mem_types); i++) { mem_types[i].prot_sect &= ~PMD_BIT4; - - /* - * ARMv5 and lower, excluding Xscale, bit 4 must be set for - * page tables. - */ - if (cpu_arch < CPU_ARCH_ARMv6 && !cpu_is_xscale()) - for (i = 0; i < ARRAY_SIZE(mem_types); i++) + mem_types[i].prot_l1 &= ~PMD_BIT4; + } + } else if (cpu_arch < CPU_ARCH_ARMv6) { + for (i = 0; i < ARRAY_SIZE(mem_types); i++) { if (mem_types[i].prot_l1) mem_types[i].prot_l1 |= PMD_BIT4; + if (mem_types[i].prot_sect) + mem_types[i].prot_sect |= PMD_BIT4; + } + } cp = &cache_policies[cachepolicy]; kern_pgprot = user_pgprot = cp->pte; @@ -296,13 +303,6 @@ static void __init build_mem_type_table(void) */ if (cpu_arch >= CPU_ARCH_ARMv6 && (cr & CR_XP)) { /* - * bit 4 becomes XN which we must clear for the - * kernel memory mapping. - */ - mem_types[MT_MEMORY].prot_sect &= ~PMD_SECT_XN; - mem_types[MT_ROM].prot_sect &= ~PMD_SECT_XN; - - /* * Mark cache clean areas and XIP ROM read only * from SVC mode and no access from userspace. */ @@ -368,64 +368,126 @@ static void __init build_mem_type_table(void) } printk("Memory policy: ECC %sabled, Data cache %s\n", ecc_mask ? "en" : "dis", cp->policy); + + for (i = 0; i < ARRAY_SIZE(mem_types); i++) { + struct mem_type *t = &mem_types[i]; + if (t->prot_l1) + t->prot_l1 |= PMD_DOMAIN(t->domain); + if (t->prot_sect) + t->prot_sect |= PMD_DOMAIN(t->domain); + } } #define vectors_base() (vectors_high() ? 0xffff0000 : 0) -/* - * Create a SECTION PGD between VIRT and PHYS in domain - * DOMAIN with protection PROT. This operates on half- - * pgdir entry increments. - */ -static inline void -alloc_init_section(unsigned long virt, unsigned long phys, int prot) +static void __init alloc_init_pte(pmd_t *pmd, unsigned long addr, + unsigned long end, unsigned long pfn, + const struct mem_type *type) { - pmd_t *pmdp = pmd_off_k(virt); + pte_t *pte; - if (virt & (1 << 20)) - pmdp++; + if (pmd_none(*pmd)) { + pte = alloc_bootmem_low_pages(2 * PTRS_PER_PTE * sizeof(pte_t)); + __pmd_populate(pmd, __pa(pte) | type->prot_l1); + } - *pmdp = __pmd(phys | prot); - flush_pmd_entry(pmdp); + pte = pte_offset_kernel(pmd, addr); + do { + set_pte_ext(pte, pfn_pte(pfn, __pgprot(type->prot_pte)), + type->prot_pte_ext); + pfn++; + } while (pte++, addr += PAGE_SIZE, addr != end); } -/* - * Create a SUPER SECTION PGD between VIRT and PHYS with protection PROT - */ -static inline void -alloc_init_supersection(unsigned long virt, unsigned long phys, int prot) +static void __init alloc_init_section(pgd_t *pgd, unsigned long addr, + unsigned long end, unsigned long phys, + const struct mem_type *type) { - int i; + pmd_t *pmd = pmd_offset(pgd, addr); + + /* + * Try a section mapping - end, addr and phys must all be aligned + * to a section boundary. Note that PMDs refer to the individual + * L1 entries, whereas PGDs refer to a group of L1 entries making + * up one logical pointer to an L2 table. + */ + if (((addr | end | phys) & ~SECTION_MASK) == 0) { + pmd_t *p = pmd; + + if (addr & SECTION_SIZE) + pmd++; - for (i = 0; i < 16; i += 1) { - alloc_init_section(virt, phys, prot | PMD_SECT_SUPER); + do { + *pmd = __pmd(phys | type->prot_sect); + phys += SECTION_SIZE; + } while (pmd++, addr += SECTION_SIZE, addr != end); - virt += (PGDIR_SIZE / 2); + flush_pmd_entry(p); + } else { + /* + * No need to loop; pte's aren't interested in the + * individual L1 entries. + */ + alloc_init_pte(pmd, addr, end, __phys_to_pfn(phys), type); } } -/* - * Add a PAGE mapping between VIRT and PHYS in domain - * DOMAIN with protection PROT. Note that due to the - * way we map the PTEs, we must allocate two PTE_SIZE'd - * blocks - one for the Linux pte table, and one for - * the hardware pte table. - */ -static inline void -alloc_init_page(unsigned long virt, unsigned long phys, unsigned int prot_l1, pgprot_t prot) +static void __init create_36bit_mapping(struct map_desc *md, + const struct mem_type *type) { - pmd_t *pmdp = pmd_off_k(virt); - pte_t *ptep; + unsigned long phys, addr, length, end; + pgd_t *pgd; + + addr = md->virtual; + phys = (unsigned long)__pfn_to_phys(md->pfn); + length = PAGE_ALIGN(md->length); + + if (!(cpu_architecture() >= CPU_ARCH_ARMv6 || cpu_is_xsc3())) { + printk(KERN_ERR "MM: CPU does not support supersection " + "mapping for 0x%08llx at 0x%08lx\n", + __pfn_to_phys((u64)md->pfn), addr); + return; + } - if (pmd_none(*pmdp)) { - ptep = alloc_bootmem_low_pages(2 * PTRS_PER_PTE * - sizeof(pte_t)); + /* N.B. ARMv6 supersections are only defined to work with domain 0. + * Since domain assignments can in fact be arbitrary, the + * 'domain == 0' check below is required to insure that ARMv6 + * supersections are only allocated for domain 0 regardless + * of the actual domain assignments in use. + */ + if (type->domain) { + printk(KERN_ERR "MM: invalid domain in supersection " + "mapping for 0x%08llx at 0x%08lx\n", + __pfn_to_phys((u64)md->pfn), addr); + return; + } - __pmd_populate(pmdp, __pa(ptep) | prot_l1); + if ((addr | length | __pfn_to_phys(md->pfn)) & ~SUPERSECTION_MASK) { + printk(KERN_ERR "MM: cannot create mapping for " + "0x%08llx at 0x%08lx invalid alignment\n", + __pfn_to_phys((u64)md->pfn), addr); + return; } - ptep = pte_offset_kernel(pmdp, virt); - set_pte_ext(ptep, pfn_pte(phys >> PAGE_SHIFT, prot), 0); + /* + * Shift bits [35:32] of address into bits [23:20] of PMD + * (See ARMv6 spec). + */ + phys |= (((md->pfn >> (32 - PAGE_SHIFT)) & 0xF) << 20); + + pgd = pgd_offset_k(addr); + end = addr + length; + do { + pmd_t *pmd = pmd_offset(pgd, addr); + int i; + + for (i = 0; i < 16; i++) + *pmd++ = __pmd(phys | type->prot_sect | PMD_SECT_SUPER); + + addr += SUPERSECTION_SIZE; + phys += SUPERSECTION_SIZE; + pgd += SUPERSECTION_SIZE >> PGDIR_SHIFT; + } while (addr != end); } /* @@ -437,10 +499,9 @@ alloc_init_page(unsigned long virt, unsigned long phys, unsigned int prot_l1, pg */ void __init create_mapping(struct map_desc *md) { - unsigned long virt, length; - int prot_sect, prot_l1, domain; - pgprot_t prot_pte; - unsigned long off = (u32)__pfn_to_phys(md->pfn); + unsigned long phys, addr, length, end; + const struct mem_type *type; + pgd_t *pgd; if (md->virtual != vectors_base() && md->virtual < TASK_SIZE) { printk(KERN_WARNING "BUG: not creating mapping for " @@ -456,105 +517,37 @@ void __init create_mapping(struct map_desc *md) __pfn_to_phys((u64)md->pfn), md->virtual); } - domain = mem_types[md->type].domain; - prot_pte = __pgprot(mem_types[md->type].prot_pte); - prot_l1 = mem_types[md->type].prot_l1 | PMD_DOMAIN(domain); - prot_sect = mem_types[md->type].prot_sect | PMD_DOMAIN(domain); + type = &mem_types[md->type]; /* * Catch 36-bit addresses */ - if(md->pfn >= 0x100000) { - if(domain) { - printk(KERN_ERR "MM: invalid domain in supersection " - "mapping for 0x%08llx at 0x%08lx\n", - __pfn_to_phys((u64)md->pfn), md->virtual); - return; - } - if((md->virtual | md->length | __pfn_to_phys(md->pfn)) - & ~SUPERSECTION_MASK) { - printk(KERN_ERR "MM: cannot create mapping for " - "0x%08llx at 0x%08lx invalid alignment\n", - __pfn_to_phys((u64)md->pfn), md->virtual); - return; - } - - /* - * Shift bits [35:32] of address into bits [23:20] of PMD - * (See ARMv6 spec). - */ - off |= (((md->pfn >> (32 - PAGE_SHIFT)) & 0xF) << 20); + if (md->pfn >= 0x100000) { + create_36bit_mapping(md, type); + return; } - virt = md->virtual; - off -= virt; - length = md->length; + addr = md->virtual; + phys = (unsigned long)__pfn_to_phys(md->pfn); + length = PAGE_ALIGN(md->length); - if (mem_types[md->type].prot_l1 == 0 && - (virt & 0xfffff || (virt + off) & 0xfffff || (virt + length) & 0xfffff)) { + if (type->prot_l1 == 0 && ((addr | phys | length) & ~SECTION_MASK)) { printk(KERN_WARNING "BUG: map for 0x%08lx at 0x%08lx can not " "be mapped using pages, ignoring.\n", - __pfn_to_phys(md->pfn), md->virtual); + __pfn_to_phys(md->pfn), addr); return; } - while ((virt & 0xfffff || (virt + off) & 0xfffff) && length >= PAGE_SIZE) { - alloc_init_page(virt, virt + off, prot_l1, prot_pte); + pgd = pgd_offset_k(addr); + end = addr + length; + do { + unsigned long next = pgd_addr_end(addr, end); - virt += PAGE_SIZE; - length -= PAGE_SIZE; - } - - /* N.B. ARMv6 supersections are only defined to work with domain 0. - * Since domain assignments can in fact be arbitrary, the - * 'domain == 0' check below is required to insure that ARMv6 - * supersections are only allocated for domain 0 regardless - * of the actual domain assignments in use. - */ - if ((cpu_architecture() >= CPU_ARCH_ARMv6 || cpu_is_xsc3()) - && domain == 0) { - /* - * Align to supersection boundary if !high pages. - * High pages have already been checked for proper - * alignment above and they will fail the SUPSERSECTION_MASK - * check because of the way the address is encoded into - * offset. - */ - if (md->pfn <= 0x100000) { - while ((virt & ~SUPERSECTION_MASK || - (virt + off) & ~SUPERSECTION_MASK) && - length >= (PGDIR_SIZE / 2)) { - alloc_init_section(virt, virt + off, prot_sect); - - virt += (PGDIR_SIZE / 2); - length -= (PGDIR_SIZE / 2); - } - } + alloc_init_section(pgd, addr, next, phys, type); - while (length >= SUPERSECTION_SIZE) { - alloc_init_supersection(virt, virt + off, prot_sect); - - virt += SUPERSECTION_SIZE; - length -= SUPERSECTION_SIZE; - } - } - - /* - * A section mapping covers half a "pgdir" entry. - */ - while (length >= (PGDIR_SIZE / 2)) { - alloc_init_section(virt, virt + off, prot_sect); - - virt += (PGDIR_SIZE / 2); - length -= (PGDIR_SIZE / 2); - } - - while (length >= PAGE_SIZE) { - alloc_init_page(virt, virt + off, prot_l1, prot_pte); - - virt += PAGE_SIZE; - length -= PAGE_SIZE; - } + phys += next - addr; + addr = next; + } while (pgd++, addr != end); } /* diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c index 05818fc..8cd3a60 100644 --- a/arch/arm/mm/nommu.c +++ b/arch/arm/mm/nommu.c @@ -62,21 +62,21 @@ void flush_dcache_page(struct page *page) } EXPORT_SYMBOL(flush_dcache_page); -void __iomem *__ioremap_pfn(unsigned long pfn, unsigned long offset, - size_t size, unsigned long flags) +void __iomem *__arm_ioremap_pfn(unsigned long pfn, unsigned long offset, + size_t size, unsigned int mtype) { if (pfn >= (0x100000000ULL >> PAGE_SHIFT)) return NULL; return (void __iomem *) (offset + (pfn << PAGE_SHIFT)); } -EXPORT_SYMBOL(__ioremap_pfn); +EXPORT_SYMBOL(__arm_ioremap_pfn); -void __iomem *__ioremap(unsigned long phys_addr, size_t size, - unsigned long flags) +void __iomem *__arm_ioremap(unsigned long phys_addr, size_t size, + unsigned int mtype) { return (void __iomem *)phys_addr; } -EXPORT_SYMBOL(__ioremap); +EXPORT_SYMBOL(__arm_ioremap); void __iounmap(volatile void __iomem *addr) { diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S index d29fe92..c156ddab 100644 --- a/arch/arm/mm/proc-xscale.S +++ b/arch/arm/mm/proc-xscale.S @@ -584,6 +584,11 @@ cpu_ixp42x_name: .asciz "XScale-IXP42x Family" .size cpu_ixp42x_name, . - cpu_ixp42x_name + .type cpu_ixp43x_name, #object +cpu_ixp43x_name: + .asciz "XScale-IXP43x Family" + .size cpu_ixp43x_name, . - cpu_ixp43x_name + .type cpu_ixp46x_name, #object cpu_ixp46x_name: .asciz "XScale-IXP46x Family" @@ -843,6 +848,29 @@ __ixp42x_proc_info: .long xscale_cache_fns .size __ixp42x_proc_info, . - __ixp42x_proc_info + .type __ixp43x_proc_info, #object +__ixp43x_proc_info: + .long 0x69054040 + .long 0xfffffff0 + .long PMD_TYPE_SECT | \ + PMD_SECT_BUFFERABLE | \ + PMD_SECT_CACHEABLE | \ + PMD_SECT_AP_WRITE | \ + PMD_SECT_AP_READ + .long PMD_TYPE_SECT | \ + PMD_SECT_AP_WRITE | \ + PMD_SECT_AP_READ + b __xscale_setup + .long cpu_arch_name + .long cpu_elf_name + .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP + .long cpu_ixp43x_name + .long xscale_processor_functions + .long v4wbi_tlb_fns + .long xscale_mc_user_fns + .long xscale_cache_fns + .size __ixp43x_proc_info, . - __ixp43x_proc_info + .type __ixp46x_proc_info, #object __ixp46x_proc_info: .long 0x69054200 diff --git a/arch/arm/oprofile/backtrace.c b/arch/arm/oprofile/backtrace.c index 7c22c1261..f5ebf30 100644 --- a/arch/arm/oprofile/backtrace.c +++ b/arch/arm/oprofile/backtrace.c @@ -19,6 +19,19 @@ #include <asm/ptrace.h> #include <asm/uaccess.h> +#include "../kernel/stacktrace.h" + +static int report_trace(struct stackframe *frame, void *d) +{ + unsigned int *depth = d; + + if (*depth) { + oprofile_add_trace(frame->lr); + (*depth)--; + } + + return *depth == 0; +} /* * The registers we're interested in are at the end of the variable @@ -32,21 +45,6 @@ struct frame_tail { unsigned long lr; } __attribute__((packed)); - -#ifdef CONFIG_FRAME_POINTER -static struct frame_tail* kernel_backtrace(struct frame_tail *tail) -{ - oprofile_add_trace(tail->lr); - - /* frame pointers should strictly progress back up the stack - * (towards higher addresses) */ - if (tail >= tail->fp) - return NULL; - - return tail->fp-1; -} -#endif - static struct frame_tail* user_backtrace(struct frame_tail *tail) { struct frame_tail buftail[2]; @@ -67,47 +65,14 @@ static struct frame_tail* user_backtrace(struct frame_tail *tail) return buftail[0].fp-1; } -/* - * | | /\ Higher addresses - * | | - * --------------- stack base (address of current_thread_info) - * | thread info | - * . . - * | stack | - * --------------- saved regs->ARM_fp value if valid (frame_tail address) - * . . - * --------------- struct pt_regs stored on stack (struct pt_regs *) - * | | - * . . - * | | - * --------------- %esp - * | | - * | | \/ Lower addresses - * - * Thus, &pt_regs <-> stack base restricts the valid(ish) fp values - */ -static int valid_kernel_stack(struct frame_tail *tail, struct pt_regs *regs) -{ - unsigned long tailaddr = (unsigned long)tail; - unsigned long stack = (unsigned long)regs; - unsigned long stack_base = (stack & ~(THREAD_SIZE - 1)) + THREAD_SIZE; - - return (tailaddr > stack) && (tailaddr < stack_base); -} - void arm_backtrace(struct pt_regs * const regs, unsigned int depth) { - struct frame_tail *tail; - - tail = ((struct frame_tail *) regs->ARM_fp) - 1; + struct frame_tail *tail = ((struct frame_tail *) regs->ARM_fp) - 1; if (!user_mode(regs)) { - -#ifdef CONFIG_FRAME_POINTER - while (depth-- && tail && valid_kernel_stack(tail, regs)) { - tail = kernel_backtrace(tail); - } -#endif + unsigned long base = ((unsigned long)regs) & ~(THREAD_SIZE - 1); + walk_stackframe(regs->ARM_fp, base, base + THREAD_SIZE, + report_trace, &depth); return; } diff --git a/arch/arm/plat-iop/io.c b/arch/arm/plat-iop/io.c index f7eccec..498675d 100644 --- a/arch/arm/plat-iop/io.c +++ b/arch/arm/plat-iop/io.c @@ -22,7 +22,7 @@ #include <asm/io.h> void * __iomem __iop3xx_ioremap(unsigned long cookie, size_t size, - unsigned long flags) + unsigned int mtype) { void __iomem * retval; @@ -34,7 +34,7 @@ void * __iomem __iop3xx_ioremap(unsigned long cookie, size_t size, retval = (void *) IOP3XX_PMMR_PHYS_TO_VIRT(cookie); break; default: - retval = __ioremap(cookie, size, flags); + retval = __arm_ioremap(cookie, size, mtype); } return retval; diff --git a/arch/arm/plat-iop/pci.c b/arch/arm/plat-iop/pci.c index b5f6ec3..e2744b7 100644 --- a/arch/arm/plat-iop/pci.c +++ b/arch/arm/plat-iop/pci.c @@ -55,7 +55,7 @@ static u32 iop3xx_cfg_address(struct pci_bus *bus, int devfn, int where) * This routine checks the status of the last configuration cycle. If an error * was detected it returns a 1, else it returns a 0. The errors being checked * are parity, master abort, target abort (master and target). These types of - * errors occure during a config cycle where there is no device, like during + * errors occur during a config cycle where there is no device, like during * the discovery stage. */ static int iop3xx_pci_status(void) @@ -223,8 +223,111 @@ struct pci_bus *iop3xx_pci_scan_bus(int nr, struct pci_sys_data *sys) return pci_scan_bus(sys->busnr, &iop3xx_ops, sys); } +void __init iop3xx_atu_setup(void) +{ + /* BAR 0 ( Disabled ) */ + *IOP3XX_IAUBAR0 = 0x0; + *IOP3XX_IABAR0 = 0x0; + *IOP3XX_IATVR0 = 0x0; + *IOP3XX_IALR0 = 0x0; + + /* BAR 1 ( Disabled ) */ + *IOP3XX_IAUBAR1 = 0x0; + *IOP3XX_IABAR1 = 0x0; + *IOP3XX_IALR1 = 0x0; + + /* BAR 2 (1:1 mapping with Physical RAM) */ + /* Set limit and enable */ + *IOP3XX_IALR2 = ~((u32)IOP3XX_MAX_RAM_SIZE - 1) & ~0x1; + *IOP3XX_IAUBAR2 = 0x0; + + /* Align the inbound bar with the base of memory */ + *IOP3XX_IABAR2 = PHYS_OFFSET | + PCI_BASE_ADDRESS_MEM_TYPE_64 | + PCI_BASE_ADDRESS_MEM_PREFETCH; + + *IOP3XX_IATVR2 = PHYS_OFFSET; + + /* Outbound window 0 */ + *IOP3XX_OMWTVR0 = IOP3XX_PCI_LOWER_MEM_PA; + *IOP3XX_OUMWTVR0 = 0; + + /* Outbound window 1 */ + *IOP3XX_OMWTVR1 = IOP3XX_PCI_LOWER_MEM_PA + IOP3XX_PCI_MEM_WINDOW_SIZE; + *IOP3XX_OUMWTVR1 = 0; + + /* BAR 3 ( Disabled ) */ + *IOP3XX_IAUBAR3 = 0x0; + *IOP3XX_IABAR3 = 0x0; + *IOP3XX_IATVR3 = 0x0; + *IOP3XX_IALR3 = 0x0; + + /* Setup the I/O Bar + */ + *IOP3XX_OIOWTVR = IOP3XX_PCI_LOWER_IO_PA;; + + /* Enable inbound and outbound cycles + */ + *IOP3XX_ATUCMD |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | + PCI_COMMAND_PARITY | PCI_COMMAND_SERR; + *IOP3XX_ATUCR |= IOP3XX_ATUCR_OUT_EN; +} + +void __init iop3xx_atu_disable(void) +{ + *IOP3XX_ATUCMD = 0; + *IOP3XX_ATUCR = 0; + + /* wait for cycles to quiesce */ + while (*IOP3XX_PCSR & (IOP3XX_PCSR_OUT_Q_BUSY | + IOP3XX_PCSR_IN_Q_BUSY)) + cpu_relax(); + + /* BAR 0 ( Disabled ) */ + *IOP3XX_IAUBAR0 = 0x0; + *IOP3XX_IABAR0 = 0x0; + *IOP3XX_IATVR0 = 0x0; + *IOP3XX_IALR0 = 0x0; + + /* BAR 1 ( Disabled ) */ + *IOP3XX_IAUBAR1 = 0x0; + *IOP3XX_IABAR1 = 0x0; + *IOP3XX_IALR1 = 0x0; + + /* BAR 2 ( Disabled ) */ + *IOP3XX_IAUBAR2 = 0x0; + *IOP3XX_IABAR2 = 0x0; + *IOP3XX_IATVR2 = 0x0; + *IOP3XX_IALR2 = 0x0; + + /* BAR 3 ( Disabled ) */ + *IOP3XX_IAUBAR3 = 0x0; + *IOP3XX_IABAR3 = 0x0; + *IOP3XX_IATVR3 = 0x0; + *IOP3XX_IALR3 = 0x0; + + /* Clear the outbound windows */ + *IOP3XX_OIOWTVR = 0; + + /* Outbound window 0 */ + *IOP3XX_OMWTVR0 = 0; + *IOP3XX_OUMWTVR0 = 0; + + /* Outbound window 1 */ + *IOP3XX_OMWTVR1 = 0; + *IOP3XX_OUMWTVR1 = 0; +} + +/* Flag to determine whether the ATU is initialized and the PCI bus scanned */ +int init_atu; + void iop3xx_pci_preinit(void) { + if (iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) { + iop3xx_atu_disable(); + iop3xx_atu_setup(); + } + DBG("PCI: Intel 803xx PCI init code.\n"); DBG("ATU: IOP3XX_ATUCMD=0x%04x\n", *IOP3XX_ATUCMD); DBG("ATU: IOP3XX_OMWTVR0=0x%04x, IOP3XX_OIOWTVR=0x%04x\n", @@ -245,3 +348,38 @@ void iop3xx_pci_preinit(void) hook_fault_code(16+6, iop3xx_pci_abort, SIGBUS, "imprecise external abort"); } + +/* allow init_atu to be user overridden */ +static int __init iop3xx_init_atu_setup(char *str) +{ + init_atu = IOP3XX_INIT_ATU_DEFAULT; + if (str) { + while (*str != '\0') { + switch (*str) { + case 'y': + case 'Y': + init_atu = IOP3XX_INIT_ATU_ENABLE; + break; + case 'n': + case 'N': + init_atu = IOP3XX_INIT_ATU_DISABLE; + break; + case ',': + case '=': + break; + default: + printk(KERN_DEBUG "\"%s\" malformed at " + "character: \'%c\'", + __FUNCTION__, + *str); + *(str + 1) = '\0'; + } + str++; + } + } + + return 1; +} + +__setup("iop3xx_init_atu", iop3xx_init_atu_setup); + diff --git a/arch/arm/plat-iop/time.c b/arch/arm/plat-iop/time.c index 16300ad..0cc26da 100644 --- a/arch/arm/plat-iop/time.c +++ b/arch/arm/plat-iop/time.c @@ -32,22 +32,22 @@ static unsigned long next_jiffy_time; unsigned long iop_gettimeoffset(void) { - unsigned long offset, temp1, temp2; + unsigned long offset, temp; /* enable cp6, if necessary, to avoid taking the overhead of an * undefined instruction trap */ asm volatile ( "mrc p15, 0, %0, c15, c1, 0\n\t" - "ands %1, %0, #(1 << 6)\n\t" + "tst %0, #(1 << 6)\n\t" "orreq %0, %0, #(1 << 6)\n\t" "mcreq p15, 0, %0, c15, c1, 0\n\t" -#ifdef CONFIG_XSCALE +#ifdef CONFIG_CPU_XSCALE "mrceq p15, 0, %0, c15, c1, 0\n\t" "moveq %0, %0\n\t" "subeq pc, pc, #4\n\t" #endif - : "=r"(temp1), "=r"(temp2) : : "cc"); + : "=r"(temp) : : "cc"); offset = next_jiffy_time - read_tcr1(); diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index f2dc363..9e8d21e 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -11,6 +11,7 @@ choice config ARCH_OMAP1 bool "TI OMAP1" + select GENERIC_CLOCKEVENTS config ARCH_OMAP2 bool "TI OMAP2" diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index 57b7b93..fecd3d6 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c @@ -156,3 +156,53 @@ static int __init omap_add_serial_console(void) return add_preferred_console("ttyS", line, opt); } console_initcall(omap_add_serial_console); + + +/* + * 32KHz clocksource ... always available, on pretty most chips except + * OMAP 730 and 1510. Other timers could be used as clocksources, with + * higher resolution in free-running counter modes (e.g. 12 MHz xtal), + * but systems won't necessarily want to spend resources that way. + */ + +#if defined(CONFIG_ARCH_OMAP16XX) +#define TIMER_32K_SYNCHRONIZED 0xfffbc410 +#elif defined(CONFIG_ARCH_OMAP24XX) +#define TIMER_32K_SYNCHRONIZED 0x48004010 +#endif + +#ifdef TIMER_32K_SYNCHRONIZED + +#include <linux/clocksource.h> + +static cycle_t omap_32k_read(void) +{ + return omap_readl(TIMER_32K_SYNCHRONIZED); +} + +static struct clocksource clocksource_32k = { + .name = "32k_counter", + .rating = 250, + .read = omap_32k_read, + .mask = CLOCKSOURCE_MASK(32), + .shift = 10, + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +static int __init omap_init_clocksource_32k(void) +{ + static char err[] __initdata = KERN_ERR + "%s: can't register clocksource!\n"; + + if (cpu_is_omap16xx() || cpu_is_omap24xx()) { + clocksource_32k.mult = clocksource_hz2mult(32768, + clocksource_32k.shift); + + if (clocksource_register(&clocksource_32k)) + printk(err, clocksource_32k.name); + } + return 0; +} +arch_initcall(omap_init_clocksource_32k); + +#endif /* TIMER_32K_SYNCHRONIZED */ diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c index dbc3f44..eeb33fe 100644 --- a/arch/arm/plat-omap/devices.c +++ b/arch/arm/plat-omap/devices.c @@ -429,6 +429,10 @@ static inline void omap_init_rng(void) {} */ static int __init omap_init_devices(void) { +/* + * Need to enable relevant once for 2430 SDP + */ +#ifndef CONFIG_MACH_OMAP_2430SDP /* please keep these calls, and their implementations above, * in alphabetical order so they're easier to sort through. */ @@ -438,7 +442,7 @@ static int __init omap_init_devices(void) omap_init_uwire(); omap_init_wdt(); omap_init_rng(); - +#endif return 0; } arch_initcall(omap_init_devices); diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c index 45f0439..659619f 100644 --- a/arch/arm/plat-omap/dmtimer.c +++ b/arch/arm/plat-omap/dmtimer.c @@ -506,6 +506,8 @@ int omap_dm_timer_init(void) BUG_ON(dm_source_clocks[i] == NULL); } #endif + if (cpu_is_omap243x()) + dm_timers[0].phys_base = 0x49018000; for (i = 0; i < dm_timer_count; i++) { #ifdef CONFIG_ARCH_OMAP2 diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index b8c01de..9dc6d36 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -15,7 +15,6 @@ #include <linux/module.h> #include <linux/sched.h> #include <linux/interrupt.h> -#include <linux/ptrace.h> #include <linux/sysdev.h> #include <linux/err.h> #include <linux/clk.h> @@ -86,10 +85,17 @@ /* * omap24xx specific GPIO registers */ -#define OMAP24XX_GPIO1_BASE (void __iomem *)0x48018000 -#define OMAP24XX_GPIO2_BASE (void __iomem *)0x4801a000 -#define OMAP24XX_GPIO3_BASE (void __iomem *)0x4801c000 -#define OMAP24XX_GPIO4_BASE (void __iomem *)0x4801e000 +#define OMAP242X_GPIO1_BASE (void __iomem *)0x48018000 +#define OMAP242X_GPIO2_BASE (void __iomem *)0x4801a000 +#define OMAP242X_GPIO3_BASE (void __iomem *)0x4801c000 +#define OMAP242X_GPIO4_BASE (void __iomem *)0x4801e000 + +#define OMAP243X_GPIO1_BASE (void __iomem *)0x4900C000 +#define OMAP243X_GPIO2_BASE (void __iomem *)0x4900E000 +#define OMAP243X_GPIO3_BASE (void __iomem *)0x49010000 +#define OMAP243X_GPIO4_BASE (void __iomem *)0x49012000 +#define OMAP243X_GPIO5_BASE (void __iomem *)0x480B6000 + #define OMAP24XX_GPIO_REVISION 0x0000 #define OMAP24XX_GPIO_SYSCONFIG 0x0010 #define OMAP24XX_GPIO_SYSSTATUS 0x0014 @@ -118,8 +124,18 @@ struct gpio_bank { u16 virtual_irq_start; int method; u32 reserved_map; +#if defined (CONFIG_ARCH_OMAP16XX) || defined (CONFIG_ARCH_OMAP24XX) u32 suspend_wakeup; u32 saved_wakeup; +#endif +#ifdef CONFIG_ARCH_OMAP24XX + u32 non_wakeup_gpios; + u32 enabled_non_wakeup_gpios; + + u32 saved_datain; + u32 saved_fallingdetect; + u32 saved_risingdetect; +#endif spinlock_t lock; }; @@ -159,12 +175,22 @@ static struct gpio_bank gpio_bank_730[7] = { #endif #ifdef CONFIG_ARCH_OMAP24XX -static struct gpio_bank gpio_bank_24xx[4] = { - { OMAP24XX_GPIO1_BASE, INT_24XX_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_24XX }, - { OMAP24XX_GPIO2_BASE, INT_24XX_GPIO_BANK2, IH_GPIO_BASE + 32, METHOD_GPIO_24XX }, - { OMAP24XX_GPIO3_BASE, INT_24XX_GPIO_BANK3, IH_GPIO_BASE + 64, METHOD_GPIO_24XX }, - { OMAP24XX_GPIO4_BASE, INT_24XX_GPIO_BANK4, IH_GPIO_BASE + 96, METHOD_GPIO_24XX }, + +static struct gpio_bank gpio_bank_242x[4] = { + { OMAP242X_GPIO1_BASE, INT_24XX_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_24XX }, + { OMAP242X_GPIO2_BASE, INT_24XX_GPIO_BANK2, IH_GPIO_BASE + 32, METHOD_GPIO_24XX }, + { OMAP242X_GPIO3_BASE, INT_24XX_GPIO_BANK3, IH_GPIO_BASE + 64, METHOD_GPIO_24XX }, + { OMAP242X_GPIO4_BASE, INT_24XX_GPIO_BANK4, IH_GPIO_BASE + 96, METHOD_GPIO_24XX }, +}; + +static struct gpio_bank gpio_bank_243x[5] = { + { OMAP243X_GPIO1_BASE, INT_24XX_GPIO_BANK1, IH_GPIO_BASE, METHOD_GPIO_24XX }, + { OMAP243X_GPIO2_BASE, INT_24XX_GPIO_BANK2, IH_GPIO_BASE + 32, METHOD_GPIO_24XX }, + { OMAP243X_GPIO3_BASE, INT_24XX_GPIO_BANK3, IH_GPIO_BASE + 64, METHOD_GPIO_24XX }, + { OMAP243X_GPIO4_BASE, INT_24XX_GPIO_BANK4, IH_GPIO_BASE + 96, METHOD_GPIO_24XX }, + { OMAP243X_GPIO5_BASE, INT_24XX_GPIO_BANK5, IH_GPIO_BASE + 128, METHOD_GPIO_24XX }, }; + #endif static struct gpio_bank *gpio_bank; @@ -258,21 +284,34 @@ static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input) u32 l; switch (bank->method) { +#ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: reg += OMAP_MPUIO_IO_CNTL; break; +#endif +#ifdef CONFIG_ARCH_OMAP15XX case METHOD_GPIO_1510: reg += OMAP1510_GPIO_DIR_CONTROL; break; +#endif +#ifdef CONFIG_ARCH_OMAP16XX case METHOD_GPIO_1610: reg += OMAP1610_GPIO_DIRECTION; break; +#endif +#ifdef CONFIG_ARCH_OMAP730 case METHOD_GPIO_730: reg += OMAP730_GPIO_DIR_CONTROL; break; +#endif +#ifdef CONFIG_ARCH_OMAP24XX case METHOD_GPIO_24XX: reg += OMAP24XX_GPIO_OE; break; +#endif + default: + WARN_ON(1); + return; } l = __raw_readl(reg); if (is_input) @@ -300,6 +339,7 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) u32 l = 0; switch (bank->method) { +#ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: reg += OMAP_MPUIO_OUTPUT; l = __raw_readl(reg); @@ -308,6 +348,8 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) else l &= ~(1 << gpio); break; +#endif +#ifdef CONFIG_ARCH_OMAP15XX case METHOD_GPIO_1510: reg += OMAP1510_GPIO_DATA_OUTPUT; l = __raw_readl(reg); @@ -316,6 +358,8 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) else l &= ~(1 << gpio); break; +#endif +#ifdef CONFIG_ARCH_OMAP16XX case METHOD_GPIO_1610: if (enable) reg += OMAP1610_GPIO_SET_DATAOUT; @@ -323,6 +367,8 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) reg += OMAP1610_GPIO_CLEAR_DATAOUT; l = 1 << gpio; break; +#endif +#ifdef CONFIG_ARCH_OMAP730 case METHOD_GPIO_730: reg += OMAP730_GPIO_DATA_OUTPUT; l = __raw_readl(reg); @@ -331,6 +377,8 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) else l &= ~(1 << gpio); break; +#endif +#ifdef CONFIG_ARCH_OMAP24XX case METHOD_GPIO_24XX: if (enable) reg += OMAP24XX_GPIO_SETDATAOUT; @@ -338,8 +386,9 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) reg += OMAP24XX_GPIO_CLEARDATAOUT; l = 1 << gpio; break; +#endif default: - BUG(); + WARN_ON(1); return; } __raw_writel(l, reg); @@ -363,28 +412,37 @@ int omap_get_gpio_datain(int gpio) void __iomem *reg; if (check_gpio(gpio) < 0) - return -1; + return -EINVAL; bank = get_gpio_bank(gpio); reg = bank->base; switch (bank->method) { +#ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: reg += OMAP_MPUIO_INPUT_LATCH; break; +#endif +#ifdef CONFIG_ARCH_OMAP15XX case METHOD_GPIO_1510: reg += OMAP1510_GPIO_DATA_INPUT; break; +#endif +#ifdef CONFIG_ARCH_OMAP16XX case METHOD_GPIO_1610: reg += OMAP1610_GPIO_DATAIN; break; +#endif +#ifdef CONFIG_ARCH_OMAP730 case METHOD_GPIO_730: reg += OMAP730_GPIO_DATA_INPUT; break; +#endif +#ifdef CONFIG_ARCH_OMAP24XX case METHOD_GPIO_24XX: reg += OMAP24XX_GPIO_DATAIN; break; +#endif default: - BUG(); - return -1; + return -EINVAL; } return (__raw_readl(reg) & (1 << get_gpio_index(gpio))) != 0; @@ -398,8 +456,10 @@ do { \ __raw_writel(l, base + reg); \ } while(0) -static inline void set_24xx_gpio_triggering(void __iomem *base, int gpio, int trigger) +#ifdef CONFIG_ARCH_OMAP24XX +static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger) { + void __iomem *base = bank->base; u32 gpio_bit = 1 << gpio; MOD_REG_BIT(OMAP24XX_GPIO_LEVELDETECT0, gpio_bit, @@ -410,9 +470,21 @@ static inline void set_24xx_gpio_triggering(void __iomem *base, int gpio, int tr trigger & __IRQT_RISEDGE); MOD_REG_BIT(OMAP24XX_GPIO_FALLINGDETECT, gpio_bit, trigger & __IRQT_FALEDGE); + if (likely(!(bank->non_wakeup_gpios & gpio_bit))) { + if (trigger != 0) + __raw_writel(1 << gpio, bank->base + OMAP24XX_GPIO_SETWKUENA); + else + __raw_writel(1 << gpio, bank->base + OMAP24XX_GPIO_CLEARWKUENA); + } else { + if (trigger != 0) + bank->enabled_non_wakeup_gpios |= gpio_bit; + else + bank->enabled_non_wakeup_gpios &= ~gpio_bit; + } /* FIXME: Possibly do 'set_irq_handler(j, handle_level_irq)' if only level * triggering requested. */ } +#endif static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger) { @@ -420,6 +492,7 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger) u32 l = 0; switch (bank->method) { +#ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: reg += OMAP_MPUIO_GPIO_INT_EDGE; l = __raw_readl(reg); @@ -430,6 +503,8 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger) else goto bad; break; +#endif +#ifdef CONFIG_ARCH_OMAP15XX case METHOD_GPIO_1510: reg += OMAP1510_GPIO_INT_CONTROL; l = __raw_readl(reg); @@ -440,22 +515,28 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger) else goto bad; break; +#endif +#ifdef CONFIG_ARCH_OMAP16XX case METHOD_GPIO_1610: if (gpio & 0x08) reg += OMAP1610_GPIO_EDGE_CTRL2; else reg += OMAP1610_GPIO_EDGE_CTRL1; gpio &= 0x07; - /* We allow only edge triggering, i.e. two lowest bits */ - if (trigger & (__IRQT_LOWLVL | __IRQT_HIGHLVL)) - BUG(); l = __raw_readl(reg); l &= ~(3 << (gpio << 1)); if (trigger & __IRQT_RISEDGE) l |= 2 << (gpio << 1); if (trigger & __IRQT_FALEDGE) l |= 1 << (gpio << 1); + if (trigger) + /* Enable wake-up during idle for dynamic tick */ + __raw_writel(1 << gpio, bank->base + OMAP1610_GPIO_SET_WAKEUPENA); + else + __raw_writel(1 << gpio, bank->base + OMAP1610_GPIO_CLEAR_WAKEUPENA); break; +#endif +#ifdef CONFIG_ARCH_OMAP730 case METHOD_GPIO_730: reg += OMAP730_GPIO_INT_CONTROL; l = __raw_readl(reg); @@ -466,11 +547,13 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger) else goto bad; break; +#endif +#ifdef CONFIG_ARCH_OMAP24XX case METHOD_GPIO_24XX: - set_24xx_gpio_triggering(reg, gpio, trigger); + set_24xx_gpio_triggering(bank, gpio, trigger); break; +#endif default: - BUG(); goto bad; } __raw_writel(l, reg); @@ -485,7 +568,7 @@ static int gpio_irq_type(unsigned irq, unsigned type) unsigned gpio; int retval; - if (irq > IH_MPUIO_BASE) + if (!cpu_is_omap24xx() && irq > IH_MPUIO_BASE) gpio = OMAP_MPUIO(irq - IH_MPUIO_BASE); else gpio = irq - IH_GPIO_BASE; @@ -493,14 +576,21 @@ static int gpio_irq_type(unsigned irq, unsigned type) if (check_gpio(gpio) < 0) return -EINVAL; - if (type & IRQT_PROBE) + if (type & ~IRQ_TYPE_SENSE_MASK) return -EINVAL; - if (!cpu_is_omap24xx() && (type & (__IRQT_LOWLVL|__IRQT_HIGHLVL))) + + /* OMAP1 allows only only edge triggering */ + if (!cpu_is_omap24xx() + && (type & (IRQ_TYPE_LEVEL_LOW|IRQ_TYPE_LEVEL_HIGH))) return -EINVAL; - bank = get_gpio_bank(gpio); + bank = get_irq_chip_data(irq); spin_lock(&bank->lock); retval = _set_gpio_triggering(bank, get_gpio_index(gpio), type); + if (retval == 0) { + irq_desc[irq].status &= ~IRQ_TYPE_SENSE_MASK; + irq_desc[irq].status |= type; + } spin_unlock(&bank->lock); return retval; } @@ -510,24 +600,34 @@ static void _clear_gpio_irqbank(struct gpio_bank *bank, int gpio_mask) void __iomem *reg = bank->base; switch (bank->method) { +#ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: /* MPUIO irqstatus is reset by reading the status register, * so do nothing here */ return; +#endif +#ifdef CONFIG_ARCH_OMAP15XX case METHOD_GPIO_1510: reg += OMAP1510_GPIO_INT_STATUS; break; +#endif +#ifdef CONFIG_ARCH_OMAP16XX case METHOD_GPIO_1610: reg += OMAP1610_GPIO_IRQSTATUS1; break; +#endif +#ifdef CONFIG_ARCH_OMAP730 case METHOD_GPIO_730: reg += OMAP730_GPIO_INT_STATUS; break; +#endif +#ifdef CONFIG_ARCH_OMAP24XX case METHOD_GPIO_24XX: reg += OMAP24XX_GPIO_IRQSTATUS1; break; +#endif default: - BUG(); + WARN_ON(1); return; } __raw_writel(gpio_mask, reg); @@ -550,31 +650,41 @@ static u32 _get_gpio_irqbank_mask(struct gpio_bank *bank) u32 mask; switch (bank->method) { +#ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: reg += OMAP_MPUIO_GPIO_MASKIT; mask = 0xffff; inv = 1; break; +#endif +#ifdef CONFIG_ARCH_OMAP15XX case METHOD_GPIO_1510: reg += OMAP1510_GPIO_INT_MASK; mask = 0xffff; inv = 1; break; +#endif +#ifdef CONFIG_ARCH_OMAP16XX case METHOD_GPIO_1610: reg += OMAP1610_GPIO_IRQENABLE1; mask = 0xffff; break; +#endif +#ifdef CONFIG_ARCH_OMAP730 case METHOD_GPIO_730: reg += OMAP730_GPIO_INT_MASK; mask = 0xffffffff; inv = 1; break; +#endif +#ifdef CONFIG_ARCH_OMAP24XX case METHOD_GPIO_24XX: reg += OMAP24XX_GPIO_IRQENABLE1; mask = 0xffffffff; break; +#endif default: - BUG(); + WARN_ON(1); return 0; } @@ -591,6 +701,7 @@ static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enab u32 l; switch (bank->method) { +#ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: reg += OMAP_MPUIO_GPIO_MASKIT; l = __raw_readl(reg); @@ -599,6 +710,8 @@ static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enab else l |= gpio_mask; break; +#endif +#ifdef CONFIG_ARCH_OMAP15XX case METHOD_GPIO_1510: reg += OMAP1510_GPIO_INT_MASK; l = __raw_readl(reg); @@ -607,6 +720,8 @@ static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enab else l |= gpio_mask; break; +#endif +#ifdef CONFIG_ARCH_OMAP16XX case METHOD_GPIO_1610: if (enable) reg += OMAP1610_GPIO_SET_IRQENABLE1; @@ -614,6 +729,8 @@ static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enab reg += OMAP1610_GPIO_CLEAR_IRQENABLE1; l = gpio_mask; break; +#endif +#ifdef CONFIG_ARCH_OMAP730 case METHOD_GPIO_730: reg += OMAP730_GPIO_INT_MASK; l = __raw_readl(reg); @@ -622,6 +739,8 @@ static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enab else l |= gpio_mask; break; +#endif +#ifdef CONFIG_ARCH_OMAP24XX case METHOD_GPIO_24XX: if (enable) reg += OMAP24XX_GPIO_SETIRQENABLE1; @@ -629,8 +748,9 @@ static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enab reg += OMAP24XX_GPIO_CLEARIRQENABLE1; l = gpio_mask; break; +#endif default: - BUG(); + WARN_ON(1); return; } __raw_writel(l, reg); @@ -652,15 +772,39 @@ static inline void _set_gpio_irqenable(struct gpio_bank *bank, int gpio, int ena static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable) { switch (bank->method) { +#ifdef CONFIG_ARCH_OMAP16XX + case METHOD_MPUIO: case METHOD_GPIO_1610: + spin_lock(&bank->lock); + if (enable) { + bank->suspend_wakeup |= (1 << gpio); + enable_irq_wake(bank->irq); + } else { + disable_irq_wake(bank->irq); + bank->suspend_wakeup &= ~(1 << gpio); + } + spin_unlock(&bank->lock); + return 0; +#endif +#ifdef CONFIG_ARCH_OMAP24XX case METHOD_GPIO_24XX: + if (bank->non_wakeup_gpios & (1 << gpio)) { + printk(KERN_ERR "Unable to modify wakeup on " + "non-wakeup GPIO%d\n", + (bank - gpio_bank) * 32 + gpio); + return -EINVAL; + } spin_lock(&bank->lock); - if (enable) + if (enable) { bank->suspend_wakeup |= (1 << gpio); - else + enable_irq_wake(bank->irq); + } else { + disable_irq_wake(bank->irq); bank->suspend_wakeup &= ~(1 << gpio); + } spin_unlock(&bank->lock); return 0; +#endif default: printk(KERN_ERR "Can't enable GPIO wakeup for method %i\n", bank->method); @@ -685,7 +829,7 @@ static int gpio_wake_enable(unsigned int irq, unsigned int enable) if (check_gpio(gpio) < 0) return -ENODEV; - bank = get_gpio_bank(gpio); + bank = get_irq_chip_data(irq); retval = _set_gpio_wakeup(bank, get_gpio_index(gpio), enable); return retval; @@ -722,20 +866,6 @@ int omap_request_gpio(int gpio) __raw_writel(__raw_readl(reg) | (1 << get_gpio_index(gpio)), reg); } #endif -#ifdef CONFIG_ARCH_OMAP16XX - if (bank->method == METHOD_GPIO_1610) { - /* Enable wake-up during idle for dynamic tick */ - void __iomem *reg = bank->base + OMAP1610_GPIO_SET_WAKEUPENA; - __raw_writel(1 << get_gpio_index(gpio), reg); - } -#endif -#ifdef CONFIG_ARCH_OMAP24XX - if (bank->method == METHOD_GPIO_24XX) { - /* Enable wake-up during idle for dynamic tick */ - void __iomem *reg = bank->base + OMAP24XX_GPIO_SETWKUENA; - __raw_writel(1 << get_gpio_index(gpio), reg); - } -#endif spin_unlock(&bank->lock); return 0; @@ -795,8 +925,10 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) desc->chip->ack(irq); bank = get_irq_data(irq); +#ifdef CONFIG_ARCH_OMAP1 if (bank->method == METHOD_MPUIO) isr_reg = bank->base + OMAP_MPUIO_GPIO_INT; +#endif #ifdef CONFIG_ARCH_OMAP15XX if (bank->method == METHOD_GPIO_1510) isr_reg = bank->base + OMAP1510_GPIO_INT_STATUS; @@ -912,7 +1044,7 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) static void gpio_irq_shutdown(unsigned int irq) { unsigned int gpio = irq - IH_GPIO_BASE; - struct gpio_bank *bank = get_gpio_bank(gpio); + struct gpio_bank *bank = get_irq_chip_data(irq); _reset_gpio(bank, gpio); } @@ -920,7 +1052,7 @@ static void gpio_irq_shutdown(unsigned int irq) static void gpio_ack_irq(unsigned int irq) { unsigned int gpio = irq - IH_GPIO_BASE; - struct gpio_bank *bank = get_gpio_bank(gpio); + struct gpio_bank *bank = get_irq_chip_data(irq); _clear_gpio_irqstatus(bank, gpio); } @@ -928,7 +1060,7 @@ static void gpio_ack_irq(unsigned int irq) static void gpio_mask_irq(unsigned int irq) { unsigned int gpio = irq - IH_GPIO_BASE; - struct gpio_bank *bank = get_gpio_bank(gpio); + struct gpio_bank *bank = get_irq_chip_data(irq); _set_gpio_irqenable(bank, gpio, 0); } @@ -937,11 +1069,27 @@ static void gpio_unmask_irq(unsigned int irq) { unsigned int gpio = irq - IH_GPIO_BASE; unsigned int gpio_idx = get_gpio_index(gpio); - struct gpio_bank *bank = get_gpio_bank(gpio); + struct gpio_bank *bank = get_irq_chip_data(irq); _set_gpio_irqenable(bank, gpio_idx, 1); } +static struct irq_chip gpio_irq_chip = { + .name = "GPIO", + .shutdown = gpio_irq_shutdown, + .ack = gpio_ack_irq, + .mask = gpio_mask_irq, + .unmask = gpio_unmask_irq, + .set_type = gpio_irq_type, + .set_wake = gpio_wake_enable, +}; + +/*---------------------------------------------------------------------*/ + +#ifdef CONFIG_ARCH_OMAP1 + +/* MPUIO uses the always-on 32k clock */ + static void mpuio_ack_irq(unsigned int irq) { /* The ISR is reset automatically, so do nothing here. */ @@ -950,7 +1098,7 @@ static void mpuio_ack_irq(unsigned int irq) static void mpuio_mask_irq(unsigned int irq) { unsigned int gpio = OMAP_MPUIO(irq - IH_MPUIO_BASE); - struct gpio_bank *bank = get_gpio_bank(gpio); + struct gpio_bank *bank = get_irq_chip_data(irq); _set_gpio_irqenable(bank, gpio, 0); } @@ -958,33 +1106,108 @@ static void mpuio_mask_irq(unsigned int irq) static void mpuio_unmask_irq(unsigned int irq) { unsigned int gpio = OMAP_MPUIO(irq - IH_MPUIO_BASE); - struct gpio_bank *bank = get_gpio_bank(gpio); + struct gpio_bank *bank = get_irq_chip_data(irq); _set_gpio_irqenable(bank, gpio, 1); } -static struct irq_chip gpio_irq_chip = { - .name = "GPIO", - .shutdown = gpio_irq_shutdown, - .ack = gpio_ack_irq, - .mask = gpio_mask_irq, - .unmask = gpio_unmask_irq, +static struct irq_chip mpuio_irq_chip = { + .name = "MPUIO", + .ack = mpuio_ack_irq, + .mask = mpuio_mask_irq, + .unmask = mpuio_unmask_irq, .set_type = gpio_irq_type, +#ifdef CONFIG_ARCH_OMAP16XX + /* REVISIT: assuming only 16xx supports MPUIO wake events */ .set_wake = gpio_wake_enable, +#endif }; -static struct irq_chip mpuio_irq_chip = { - .name = "MPUIO", - .ack = mpuio_ack_irq, - .mask = mpuio_mask_irq, - .unmask = mpuio_unmask_irq, - .set_type = gpio_irq_type, + +#define bank_is_mpuio(bank) ((bank)->method == METHOD_MPUIO) + + +#ifdef CONFIG_ARCH_OMAP16XX + +#include <linux/platform_device.h> + +static int omap_mpuio_suspend_late(struct platform_device *pdev, pm_message_t mesg) +{ + struct gpio_bank *bank = platform_get_drvdata(pdev); + void __iomem *mask_reg = bank->base + OMAP_MPUIO_GPIO_MASKIT; + + spin_lock(&bank->lock); + bank->saved_wakeup = __raw_readl(mask_reg); + __raw_writel(0xffff & ~bank->suspend_wakeup, mask_reg); + spin_unlock(&bank->lock); + + return 0; +} + +static int omap_mpuio_resume_early(struct platform_device *pdev) +{ + struct gpio_bank *bank = platform_get_drvdata(pdev); + void __iomem *mask_reg = bank->base + OMAP_MPUIO_GPIO_MASKIT; + + spin_lock(&bank->lock); + __raw_writel(bank->saved_wakeup, mask_reg); + spin_unlock(&bank->lock); + + return 0; +} + +/* use platform_driver for this, now that there's no longer any + * point to sys_device (other than not disturbing old code). + */ +static struct platform_driver omap_mpuio_driver = { + .suspend_late = omap_mpuio_suspend_late, + .resume_early = omap_mpuio_resume_early, + .driver = { + .name = "mpuio", + }, +}; + +static struct platform_device omap_mpuio_device = { + .name = "mpuio", + .id = -1, + .dev = { + .driver = &omap_mpuio_driver.driver, + } + /* could list the /proc/iomem resources */ }; +static inline void mpuio_init(void) +{ + platform_set_drvdata(&omap_mpuio_device, &gpio_bank_1610[0]); + + if (platform_driver_register(&omap_mpuio_driver) == 0) + (void) platform_device_register(&omap_mpuio_device); +} + +#else +static inline void mpuio_init(void) {} +#endif /* 16xx */ + +#else + +extern struct irq_chip mpuio_irq_chip; + +#define bank_is_mpuio(bank) 0 +static inline void mpuio_init(void) {} + +#endif + +/*---------------------------------------------------------------------*/ + static int initialized; static struct clk * gpio_ick; static struct clk * gpio_fck; +#ifdef CONFIG_ARCH_OMAP2430 +static struct clk * gpio5_ick; +static struct clk * gpio5_fck; +#endif + static int __init _omap_gpio_init(void) { int i; @@ -1010,7 +1233,25 @@ static int __init _omap_gpio_init(void) printk("Could not get gpios_fck\n"); else clk_enable(gpio_fck); - } + + /* + * On 2430 GPIO 5 uses CORE L4 ICLK + */ +#ifdef CONFIG_ARCH_OMAP2430 + if (cpu_is_omap2430()) { + gpio5_ick = clk_get(NULL, "gpio5_ick"); + if (IS_ERR(gpio5_ick)) + printk("Could not get gpio5_ick\n"); + else + clk_enable(gpio5_ick); + gpio5_fck = clk_get(NULL, "gpio5_fck"); + if (IS_ERR(gpio5_fck)) + printk("Could not get gpio5_fck\n"); + else + clk_enable(gpio5_fck); + } +#endif +} #ifdef CONFIG_ARCH_OMAP15XX if (cpu_is_omap15xx()) { @@ -1037,14 +1278,24 @@ static int __init _omap_gpio_init(void) gpio_bank = gpio_bank_730; } #endif + #ifdef CONFIG_ARCH_OMAP24XX - if (cpu_is_omap24xx()) { + if (cpu_is_omap242x()) { int rev; gpio_bank_count = 4; - gpio_bank = gpio_bank_24xx; + gpio_bank = gpio_bank_242x; + rev = omap_readl(gpio_bank[0].base + OMAP24XX_GPIO_REVISION); + printk(KERN_INFO "OMAP242x GPIO hardware version %d.%d\n", + (rev >> 4) & 0x0f, rev & 0x0f); + } + if (cpu_is_omap243x()) { + int rev; + + gpio_bank_count = 5; + gpio_bank = gpio_bank_243x; rev = omap_readl(gpio_bank[0].base + OMAP24XX_GPIO_REVISION); - printk(KERN_INFO "OMAP24xx GPIO hardware version %d.%d\n", + printk(KERN_INFO "OMAP243x GPIO hardware version %d.%d\n", (rev >> 4) & 0x0f, rev & 0x0f); } #endif @@ -1055,9 +1306,8 @@ static int __init _omap_gpio_init(void) bank->reserved_map = 0; bank->base = IO_ADDRESS(bank->base); spin_lock_init(&bank->lock); - if (bank->method == METHOD_MPUIO) { + if (bank_is_mpuio(bank)) omap_writew(0xFFFF, OMAP_MPUIO_BASE + OMAP_MPUIO_GPIO_MASKIT); - } #ifdef CONFIG_ARCH_OMAP15XX if (bank->method == METHOD_GPIO_1510) { __raw_writew(0xffff, bank->base + OMAP1510_GPIO_INT_MASK); @@ -1081,15 +1331,25 @@ static int __init _omap_gpio_init(void) #endif #ifdef CONFIG_ARCH_OMAP24XX if (bank->method == METHOD_GPIO_24XX) { + static const u32 non_wakeup_gpios[] = { + 0xe203ffc0, 0x08700040 + }; + __raw_writel(0x00000000, bank->base + OMAP24XX_GPIO_IRQENABLE1); __raw_writel(0xffffffff, bank->base + OMAP24XX_GPIO_IRQSTATUS1); + __raw_writew(0x0015, bank->base + OMAP24XX_GPIO_SYSCONFIG); + /* Initialize interface clock ungated, module enabled */ + __raw_writel(0, bank->base + OMAP24XX_GPIO_CTRL); + if (i < ARRAY_SIZE(non_wakeup_gpios)) + bank->non_wakeup_gpios = non_wakeup_gpios[i]; gpio_count = 32; } #endif for (j = bank->virtual_irq_start; j < bank->virtual_irq_start + gpio_count; j++) { - if (bank->method == METHOD_MPUIO) + set_irq_chip_data(j, bank); + if (bank_is_mpuio(bank)) set_irq_chip(j, &mpuio_irq_chip); else set_irq_chip(j, &gpio_irq_chip); @@ -1105,6 +1365,12 @@ static int __init _omap_gpio_init(void) if (cpu_is_omap16xx()) omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04, ULPD_CAM_CLK_CTRL); +#ifdef CONFIG_ARCH_OMAP24XX + /* Enable autoidle for the OCP interface */ + if (cpu_is_omap24xx()) + omap_writel(1 << 0, 0x48019010); +#endif + return 0; } @@ -1123,16 +1389,20 @@ static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg) void __iomem *wake_set; switch (bank->method) { +#ifdef CONFIG_ARCH_OMAP16XX case METHOD_GPIO_1610: wake_status = bank->base + OMAP1610_GPIO_WAKEUPENABLE; wake_clear = bank->base + OMAP1610_GPIO_CLEAR_WAKEUPENA; wake_set = bank->base + OMAP1610_GPIO_SET_WAKEUPENA; break; +#endif +#ifdef CONFIG_ARCH_OMAP24XX case METHOD_GPIO_24XX: wake_status = bank->base + OMAP24XX_GPIO_SETWKUENA; wake_clear = bank->base + OMAP24XX_GPIO_CLEARWKUENA; wake_set = bank->base + OMAP24XX_GPIO_SETWKUENA; break; +#endif default: continue; } @@ -1160,14 +1430,18 @@ static int omap_gpio_resume(struct sys_device *dev) void __iomem *wake_set; switch (bank->method) { +#ifdef CONFIG_ARCH_OMAP16XX case METHOD_GPIO_1610: wake_clear = bank->base + OMAP1610_GPIO_CLEAR_WAKEUPENA; wake_set = bank->base + OMAP1610_GPIO_SET_WAKEUPENA; break; +#endif +#ifdef CONFIG_ARCH_OMAP24XX case METHOD_GPIO_24XX: wake_clear = bank->base + OMAP24XX_GPIO_CLEARWKUENA; wake_set = bank->base + OMAP24XX_GPIO_SETWKUENA; break; +#endif default: continue; } @@ -1191,6 +1465,80 @@ static struct sys_device omap_gpio_device = { .id = 0, .cls = &omap_gpio_sysclass, }; + +#endif + +#ifdef CONFIG_ARCH_OMAP24XX + +static int workaround_enabled; + +void omap2_gpio_prepare_for_retention(void) +{ + int i, c = 0; + + /* Remove triggering for all non-wakeup GPIOs. Otherwise spurious + * IRQs will be generated. See OMAP2420 Errata item 1.101. */ + for (i = 0; i < gpio_bank_count; i++) { + struct gpio_bank *bank = &gpio_bank[i]; + u32 l1, l2; + + if (!(bank->enabled_non_wakeup_gpios)) + continue; + bank->saved_datain = __raw_readl(bank->base + OMAP24XX_GPIO_DATAIN); + l1 = __raw_readl(bank->base + OMAP24XX_GPIO_FALLINGDETECT); + l2 = __raw_readl(bank->base + OMAP24XX_GPIO_RISINGDETECT); + bank->saved_fallingdetect = l1; + bank->saved_risingdetect = l2; + l1 &= ~bank->enabled_non_wakeup_gpios; + l2 &= ~bank->enabled_non_wakeup_gpios; + __raw_writel(l1, bank->base + OMAP24XX_GPIO_FALLINGDETECT); + __raw_writel(l2, bank->base + OMAP24XX_GPIO_RISINGDETECT); + c++; + } + if (!c) { + workaround_enabled = 0; + return; + } + workaround_enabled = 1; +} + +void omap2_gpio_resume_after_retention(void) +{ + int i; + + if (!workaround_enabled) + return; + for (i = 0; i < gpio_bank_count; i++) { + struct gpio_bank *bank = &gpio_bank[i]; + u32 l; + + if (!(bank->enabled_non_wakeup_gpios)) + continue; + __raw_writel(bank->saved_fallingdetect, + bank->base + OMAP24XX_GPIO_FALLINGDETECT); + __raw_writel(bank->saved_risingdetect, + bank->base + OMAP24XX_GPIO_RISINGDETECT); + /* Check if any of the non-wakeup interrupt GPIOs have changed + * state. If so, generate an IRQ by software. This is + * horribly racy, but it's the best we can do to work around + * this silicon bug. */ + l = __raw_readl(bank->base + OMAP24XX_GPIO_DATAIN); + l ^= bank->saved_datain; + l &= bank->non_wakeup_gpios; + if (l) { + u32 old0, old1; + + old0 = __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT0); + old1 = __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT1); + __raw_writel(old0 | l, bank->base + OMAP24XX_GPIO_LEVELDETECT0); + __raw_writel(old1 | l, bank->base + OMAP24XX_GPIO_LEVELDETECT1); + __raw_writel(old0, bank->base + OMAP24XX_GPIO_LEVELDETECT0); + __raw_writel(old1, bank->base + OMAP24XX_GPIO_LEVELDETECT1); + } + } + +} + #endif /* @@ -1212,6 +1560,8 @@ static int __init omap_gpio_sysinit(void) if (!initialized) ret = _omap_gpio_init(); + mpuio_init(); + #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP24XX) if (cpu_is_omap16xx() || cpu_is_omap24xx()) { if (ret == 0) { @@ -1232,3 +1582,128 @@ EXPORT_SYMBOL(omap_set_gpio_dataout); EXPORT_SYMBOL(omap_get_gpio_datain); arch_initcall(omap_gpio_sysinit); + + +#ifdef CONFIG_DEBUG_FS + +#include <linux/debugfs.h> +#include <linux/seq_file.h> + +static int gpio_is_input(struct gpio_bank *bank, int mask) +{ + void __iomem *reg = bank->base; + + switch (bank->method) { + case METHOD_MPUIO: + reg += OMAP_MPUIO_IO_CNTL; + break; + case METHOD_GPIO_1510: + reg += OMAP1510_GPIO_DIR_CONTROL; + break; + case METHOD_GPIO_1610: + reg += OMAP1610_GPIO_DIRECTION; + break; + case METHOD_GPIO_730: + reg += OMAP730_GPIO_DIR_CONTROL; + break; + case METHOD_GPIO_24XX: + reg += OMAP24XX_GPIO_OE; + break; + } + return __raw_readl(reg) & mask; +} + + +static int dbg_gpio_show(struct seq_file *s, void *unused) +{ + unsigned i, j, gpio; + + for (i = 0, gpio = 0; i < gpio_bank_count; i++) { + struct gpio_bank *bank = gpio_bank + i; + unsigned bankwidth = 16; + u32 mask = 1; + + if (bank_is_mpuio(bank)) + gpio = OMAP_MPUIO(0); + else if (cpu_is_omap24xx() || cpu_is_omap730()) + bankwidth = 32; + + for (j = 0; j < bankwidth; j++, gpio++, mask <<= 1) { + unsigned irq, value, is_in, irqstat; + + if (!(bank->reserved_map & mask)) + continue; + + irq = bank->virtual_irq_start + j; + value = omap_get_gpio_datain(gpio); + is_in = gpio_is_input(bank, mask); + + if (bank_is_mpuio(bank)) + seq_printf(s, "MPUIO %2d: ", j); + else + seq_printf(s, "GPIO %3d: ", gpio); + seq_printf(s, "%s %s", + is_in ? "in " : "out", + value ? "hi" : "lo"); + + irqstat = irq_desc[irq].status; + if (is_in && ((bank->suspend_wakeup & mask) + || irqstat & IRQ_TYPE_SENSE_MASK)) { + char *trigger = NULL; + + switch (irqstat & IRQ_TYPE_SENSE_MASK) { + case IRQ_TYPE_EDGE_FALLING: + trigger = "falling"; + break; + case IRQ_TYPE_EDGE_RISING: + trigger = "rising"; + break; + case IRQ_TYPE_EDGE_BOTH: + trigger = "bothedge"; + break; + case IRQ_TYPE_LEVEL_LOW: + trigger = "low"; + break; + case IRQ_TYPE_LEVEL_HIGH: + trigger = "high"; + break; + case IRQ_TYPE_NONE: + trigger = "(unspecified)"; + break; + } + seq_printf(s, ", irq-%d %s%s", + irq, trigger, + (bank->suspend_wakeup & mask) + ? " wakeup" : ""); + } + seq_printf(s, "\n"); + } + + if (bank_is_mpuio(bank)) { + seq_printf(s, "\n"); + gpio = 0; + } + } + return 0; +} + +static int dbg_gpio_open(struct inode *inode, struct file *file) +{ + return single_open(file, dbg_gpio_show, &inode->i_private); +} + +static const struct file_operations debug_fops = { + .open = dbg_gpio_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int __init omap_gpio_debuginit(void) +{ + (void) debugfs_create_file("omap_gpio", S_IRUGO, + NULL, NULL, &debug_fops); + return 0; +} +late_initcall(omap_gpio_debuginit); +#endif diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c index b8d6f17..f7b9ccd 100644 --- a/arch/arm/plat-omap/mcbsp.c +++ b/arch/arm/plat-omap/mcbsp.c @@ -225,11 +225,16 @@ static void omap_mcbsp_dsp_free(void) #ifdef CONFIG_ARCH_OMAP2 static void omap2_mcbsp2_mux_setup(void) { - omap_cfg_reg(Y15_24XX_MCBSP2_CLKX); - omap_cfg_reg(R14_24XX_MCBSP2_FSX); - omap_cfg_reg(W15_24XX_MCBSP2_DR); - omap_cfg_reg(V15_24XX_MCBSP2_DX); - omap_cfg_reg(V14_24XX_GPIO117); + if (cpu_is_omap2420()) { + omap_cfg_reg(Y15_24XX_MCBSP2_CLKX); + omap_cfg_reg(R14_24XX_MCBSP2_FSX); + omap_cfg_reg(W15_24XX_MCBSP2_DR); + omap_cfg_reg(V15_24XX_MCBSP2_DX); + omap_cfg_reg(V14_24XX_GPIO117); + } + /* + * Need to add MUX settings for OMAP 2430 SDP + */ } #endif diff --git a/arch/arm/plat-omap/timer32k.c b/arch/arm/plat-omap/timer32k.c index 2653106..114f871 100644 --- a/arch/arm/plat-omap/timer32k.c +++ b/arch/arm/plat-omap/timer32k.c @@ -42,6 +42,8 @@ #include <linux/spinlock.h> #include <linux/err.h> #include <linux/clk.h> +#include <linux/clocksource.h> +#include <linux/clockchips.h> #include <asm/system.h> #include <asm/hardware.h> @@ -80,13 +82,13 @@ struct sys_timer omap_timer; #define OMAP1_32K_TIMER_TVR 0x00 #define OMAP1_32K_TIMER_TCR 0x04 -#define OMAP_32K_TICKS_PER_HZ (32768 / HZ) +#define OMAP_32K_TICKS_PER_SEC (32768) /* * TRM says 1 / HZ = ( TVR + 1) / 32768, so TRV = (32768 / HZ) - 1 * so with HZ = 128, TVR = 255. */ -#define OMAP_32K_TIMER_TICK_PERIOD ((32768 / HZ) - 1) +#define OMAP_32K_TIMER_TICK_PERIOD ((OMAP_32K_TICKS_PER_SEC / HZ) - 1) #define JIFFIES_TO_HW_TICKS(nr_jiffies, clock_rate) \ (((nr_jiffies) * (clock_rate)) / HZ) @@ -142,6 +144,28 @@ static inline void omap_32k_timer_ack_irq(void) #endif +static void omap_32k_timer_set_mode(enum clock_event_mode mode, + struct clock_event_device *evt) +{ + switch (mode) { + case CLOCK_EVT_MODE_ONESHOT: + case CLOCK_EVT_MODE_PERIODIC: + omap_32k_timer_start(OMAP_32K_TIMER_TICK_PERIOD); + break; + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: + omap_32k_timer_stop(); + break; + } +} + +static struct clock_event_device clockevent_32k_timer = { + .name = "32k-timer", + .features = CLOCK_EVT_FEAT_PERIODIC, + .shift = 32, + .set_mode = omap_32k_timer_set_mode, +}; + /* * The 32KHz synchronized timer is an additional timer on 16xx. * It is always running. @@ -171,15 +195,6 @@ omap_32k_ticks_to_nsecs(unsigned long ticks_32k) static unsigned long omap_32k_last_tick = 0; /* - * Returns elapsed usecs since last 32k timer interrupt - */ -static unsigned long omap_32k_timer_gettimeoffset(void) -{ - unsigned long now = omap_32k_sync_timer_read(); - return omap_32k_ticks_to_usecs(now - omap_32k_last_tick); -} - -/* * Returns current time from boot in nsecs. It's OK for this to wrap * around for now, as it's just a relative time stamp. */ @@ -188,95 +203,16 @@ unsigned long long sched_clock(void) return omap_32k_ticks_to_nsecs(omap_32k_sync_timer_read()); } -/* - * Timer interrupt for 32KHz timer. When dynamic tick is enabled, this - * function is also called from other interrupts to remove latency - * issues with dynamic tick. In the dynamic tick case, we need to lock - * with irqsave. - */ -static inline irqreturn_t _omap_32k_timer_interrupt(int irq, void *dev_id) -{ - unsigned long now; - - omap_32k_timer_ack_irq(); - now = omap_32k_sync_timer_read(); - - while ((signed long)(now - omap_32k_last_tick) - >= OMAP_32K_TICKS_PER_HZ) { - omap_32k_last_tick += OMAP_32K_TICKS_PER_HZ; - timer_tick(); - } - - /* Restart timer so we don't drift off due to modulo or dynamic tick. - * By default we program the next timer to be continuous to avoid - * latencies during high system load. During dynamic tick operation the - * continuous timer can be overridden from pm_idle to be longer. - */ - omap_32k_timer_start(omap_32k_last_tick + OMAP_32K_TICKS_PER_HZ - now); - - return IRQ_HANDLED; -} - -static irqreturn_t omap_32k_timer_handler(int irq, void *dev_id) -{ - return _omap_32k_timer_interrupt(irq, dev_id); -} - static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id) { - unsigned long flags; + struct clock_event_device *evt = &clockevent_32k_timer; + omap_32k_timer_ack_irq(); - write_seqlock_irqsave(&xtime_lock, flags); - _omap_32k_timer_interrupt(irq, dev_id); - write_sequnlock_irqrestore(&xtime_lock, flags); + evt->event_handler(evt); return IRQ_HANDLED; } -#ifdef CONFIG_NO_IDLE_HZ -/* - * Programs the next timer interrupt needed. Called when dynamic tick is - * enabled, and to reprogram the ticks to skip from pm_idle. Note that - * we can keep the timer continuous, and don't need to set it to run in - * one-shot mode. This is because the timer will get reprogrammed again - * after next interrupt. - */ -void omap_32k_timer_reprogram(unsigned long next_tick) -{ - unsigned long ticks = JIFFIES_TO_HW_TICKS(next_tick, 32768) + 1; - unsigned long now = omap_32k_sync_timer_read(); - unsigned long idled = now - omap_32k_last_tick; - - if (idled + 1 < ticks) - ticks -= idled; - else - ticks = 1; - omap_32k_timer_start(ticks); -} - -static struct irqaction omap_32k_timer_irq; -extern struct timer_update_handler timer_update; - -static int omap_32k_timer_enable_dyn_tick(void) -{ - /* No need to reprogram timer, just use the next interrupt */ - return 0; -} - -static int omap_32k_timer_disable_dyn_tick(void) -{ - omap_32k_timer_start(OMAP_32K_TIMER_TICK_PERIOD); - return 0; -} - -static struct dyn_tick_timer omap_dyn_tick_timer = { - .enable = omap_32k_timer_enable_dyn_tick, - .disable = omap_32k_timer_disable_dyn_tick, - .reprogram = omap_32k_timer_reprogram, - .handler = omap_32k_timer_handler, -}; -#endif /* CONFIG_NO_IDLE_HZ */ - static struct irqaction omap_32k_timer_irq = { .name = "32KHz timer", .flags = IRQF_DISABLED | IRQF_TIMER, @@ -285,13 +221,8 @@ static struct irqaction omap_32k_timer_irq = { static __init void omap_init_32k_timer(void) { -#ifdef CONFIG_NO_IDLE_HZ - omap_timer.dyn_tick = &omap_dyn_tick_timer; -#endif - if (cpu_class_is_omap1()) setup_irq(INT_OS_TIMER, &omap_32k_timer_irq); - omap_timer.offset = omap_32k_timer_gettimeoffset; omap_32k_last_tick = omap_32k_sync_timer_read(); #ifdef CONFIG_ARCH_OMAP2 @@ -308,7 +239,16 @@ static __init void omap_init_32k_timer(void) } #endif - omap_32k_timer_start(OMAP_32K_TIMER_TICK_PERIOD); + clockevent_32k_timer.mult = div_sc(OMAP_32K_TICKS_PER_SEC, + NSEC_PER_SEC, + clockevent_32k_timer.shift); + clockevent_32k_timer.max_delta_ns = + clockevent_delta2ns(0xfffffffe, &clockevent_32k_timer); + clockevent_32k_timer.min_delta_ns = + clockevent_delta2ns(1, &clockevent_32k_timer); + + clockevent_32k_timer.cpumask = cpumask_of_cpu(0); + clockevents_register_device(&clockevent_32k_timer); } /* @@ -326,5 +266,4 @@ static void __init omap_timer_init(void) struct sys_timer omap_timer = { .init = omap_timer_init, - .offset = NULL, /* Initialized later */ }; diff --git a/arch/arm/plat-s3c24xx/clock.c b/arch/arm/plat-s3c24xx/clock.c index d3dc03a..79cda0f 100644 --- a/arch/arm/plat-s3c24xx/clock.c +++ b/arch/arm/plat-s3c24xx/clock.c @@ -404,6 +404,18 @@ int s3c24xx_register_clock(struct clk *clk) return 0; } +int s3c24xx_register_clocks(struct clk **clks, int nr_clks) +{ + int fails = 0; + + for (; nr_clks > 0; nr_clks--, clks++) { + if (s3c24xx_register_clock(*clks) < 0) + fails++; + } + + return fails; +} + /* initalise all the clocks */ int __init s3c24xx_setup_clocks(unsigned long xtal, diff --git a/arch/arm/plat-s3c24xx/cpu.c b/arch/arm/plat-s3c24xx/cpu.c index 6a2d107..8ce4904 100644 --- a/arch/arm/plat-s3c24xx/cpu.c +++ b/arch/arm/plat-s3c24xx/cpu.c @@ -181,24 +181,6 @@ s3c_lookup_cpu(unsigned long idcode) return NULL; } -/* board information */ - -static struct s3c24xx_board *board; - -void s3c24xx_set_board(struct s3c24xx_board *b) -{ - int i; - - board = b; - - if (b->clocks_count != 0) { - struct clk **ptr = b->clocks; - - for (i = b->clocks_count; i > 0; i--, ptr++) - s3c24xx_register_clock(*ptr); - } -} - /* cpu information */ static struct cpu_table *cpu; @@ -342,26 +324,6 @@ static int __init s3c_arch_init(void) return ret; ret = platform_add_devices(s3c24xx_uart_devs, nr_uarts); - if (ret != 0) - return ret; - - if (board != NULL) { - struct platform_device **ptr = board->devices; - int i; - - for (i = 0; i < board->devices_count; i++, ptr++) { - ret = platform_device_register(*ptr); - - if (ret) { - printk(KERN_ERR "s3c24xx: failed to add board device %s (%d) @%p\n", (*ptr)->name, ret, *ptr); - } - } - - /* mask any error, we may not need all these board - * devices */ - ret = 0; - } - return ret; } diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c index 4540a80..6f03c93 100644 --- a/arch/arm/plat-s3c24xx/dma.c +++ b/arch/arm/plat-s3c24xx/dma.c @@ -44,7 +44,7 @@ static struct kmem_cache *dma_kmem; static int dma_channels; -struct s3c24xx_dma_selection dma_sel; +static struct s3c24xx_dma_selection dma_sel; /* dma channel state information */ struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS]; @@ -880,7 +880,7 @@ static int s3c2410_dma_dostop(struct s3c2410_dma_chan *chan) return 0; } -void s3c2410_dma_waitforstop(struct s3c2410_dma_chan *chan) +static void s3c2410_dma_waitforstop(struct s3c2410_dma_chan *chan) { unsigned long tmp; unsigned int timeout = 0x10000; @@ -957,8 +957,7 @@ static int s3c2410_dma_flush(struct s3c2410_dma_chan *chan) return 0; } -int -s3c2410_dma_started(struct s3c2410_dma_chan *chan) +static int s3c2410_dma_started(struct s3c2410_dma_chan *chan) { unsigned long flags; @@ -1280,7 +1279,7 @@ static void s3c2410_dma_cache_ctor(void *p, struct kmem_cache *c, unsigned long /* initialisation code */ -int __init s3c24xx_dma_sysclass_init(void) +static int __init s3c24xx_dma_sysclass_init(void) { int ret = sysdev_class_register(&dma_sysclass); @@ -1292,7 +1291,7 @@ int __init s3c24xx_dma_sysclass_init(void) core_initcall(s3c24xx_dma_sysclass_init); -int __init s3c24xx_dma_sysdev_register(void) +static int __init s3c24xx_dma_sysdev_register(void) { struct s3c2410_dma_chan *cp = s3c2410_chans; int channel, ret; @@ -1396,7 +1395,7 @@ static struct s3c24xx_dma_order *dma_order; * channel */ -struct s3c2410_dma_chan *s3c2410_dma_map_channel(int channel) +static struct s3c2410_dma_chan *s3c2410_dma_map_channel(int channel) { struct s3c24xx_dma_order_ch *ord = NULL; struct s3c24xx_dma_map *ch_map; diff --git a/arch/arm/plat-s3c24xx/irq.c b/arch/arm/plat-s3c24xx/irq.c index ce18639..8fbc884 100644 --- a/arch/arm/plat-s3c24xx/irq.c +++ b/arch/arm/plat-s3c24xx/irq.c @@ -54,7 +54,6 @@ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/ioport.h> -#include <linux/ptrace.h> #include <linux/sysdev.h> #include <asm/hardware.h> diff --git a/arch/arm/plat-s3c24xx/s3c244x-irq.c b/arch/arm/plat-s3c24xx/s3c244x-irq.c index a0e39d8..2dbb260 100644 --- a/arch/arm/plat-s3c24xx/s3c244x-irq.c +++ b/arch/arm/plat-s3c24xx/s3c244x-irq.c @@ -23,7 +23,6 @@ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/ioport.h> -#include <linux/ptrace.h> #include <linux/sysdev.h> #include <asm/hardware.h> diff --git a/arch/arm/vfp/vfpdouble.c b/arch/arm/vfp/vfpdouble.c index e44b9ed..74e89f8 100644 --- a/arch/arm/vfp/vfpdouble.c +++ b/arch/arm/vfp/vfpdouble.c @@ -34,7 +34,6 @@ #include <linux/bitops.h> #include <asm/div64.h> -#include <asm/ptrace.h> #include <asm/vfp.h> #include "vfpinstr.h" diff --git a/arch/arm/vfp/vfpsingle.c b/arch/arm/vfp/vfpsingle.c index 0221ba3..b252631 100644 --- a/arch/arm/vfp/vfpsingle.c +++ b/arch/arm/vfp/vfpsingle.c @@ -34,7 +34,6 @@ #include <linux/bitops.h> #include <asm/div64.h> -#include <asm/ptrace.h> #include <asm/vfp.h> #include "vfpinstr.h" diff --git a/arch/arm26/Kconfig b/arch/arm26/Kconfig index 989113d..20688bc 100644 --- a/arch/arm26/Kconfig +++ b/arch/arm26/Kconfig @@ -57,9 +57,6 @@ config GENERIC_CALIBRATE_DELAY bool default y -config GENERIC_BUST_SPINLOCK - bool - config ZONE_DMA bool default y diff --git a/arch/arm26/boot/compressed/misc.c b/arch/arm26/boot/compressed/misc.c index f17f50e..0714d19 100644 --- a/arch/arm26/boot/compressed/misc.c +++ b/arch/arm26/boot/compressed/misc.c @@ -182,7 +182,7 @@ extern int end; static ulg free_mem_ptr; static ulg free_mem_ptr_end; -#define HEAP_SIZE 0x2000 +#define HEAP_SIZE 0x3000 #include "../../../../lib/inflate.c" diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig new file mode 100644 index 0000000..1a49305 --- /dev/null +++ b/arch/blackfin/Kconfig @@ -0,0 +1,989 @@ +# +# For a description of the syntax of this configuration file, +# see Documentation/kbuild/kconfig-language.txt. +# + +mainmenu "uClinux/Blackfin (w/o MMU) Kernel Configuration" + +config MMU + bool + default n + +config FPU + bool + default n + +config RWSEM_GENERIC_SPINLOCK + bool + default y + +config RWSEM_XCHGADD_ALGORITHM + bool + default n + +config BLACKFIN + bool + default y + +config BFIN + bool + default y + +config SEMAPHORE_SLEEPERS + bool + default y + +config GENERIC_FIND_NEXT_BIT + bool + default y + +config GENERIC_HWEIGHT + bool + default y + +config GENERIC_HARDIRQS + bool + default y + +config GENERIC_IRQ_PROBE + bool + default y + +config GENERIC_TIME + bool + default n + +config GENERIC_CALIBRATE_DELAY + bool + default y + +config FORCE_MAX_ZONEORDER + int + default "14" + +config GENERIC_CALIBRATE_DELAY + bool + default y + +config IRQCHIP_DEMUX_GPIO + bool + default y + +source "init/Kconfig" +source "kernel/Kconfig.preempt" + +menu "Blackfin Processor Options" + +comment "Processor and Board Settings" + +choice + prompt "CPU" + default BF533 + +config BF531 + bool "BF531" + help + BF531 Processor Support. + +config BF532 + bool "BF532" + help + BF532 Processor Support. + +config BF533 + bool "BF533" + help + BF533 Processor Support. + +config BF534 + bool "BF534" + help + BF534 Processor Support. + +config BF536 + bool "BF536" + help + BF536 Processor Support. + +config BF537 + bool "BF537" + help + BF537 Processor Support. + +config BF561 + bool "BF561" + help + Not Supported Yet - Work in progress - BF561 Processor Support. + +endchoice + +choice + prompt "Silicon Rev" + default BF_REV_0_2 if BF537 + default BF_REV_0_3 if BF533 + +config BF_REV_0_2 + bool "0.2" + depends on (BF537 || BF536 || BF534) + +config BF_REV_0_3 + bool "0.3" + depends on (BF561 || BF537 || BF536 || BF534 || BF533 || BF532 || BF531) + +config BF_REV_0_4 + bool "0.4" + depends on (BF561 || BF533 || BF532 || BF531) + +config BF_REV_0_5 + bool "0.5" + depends on (BF561 || BF533 || BF532 || BF531) + +endchoice + +config BFIN_DUAL_CORE + bool + depends on (BF561) + default y + +config BFIN_SINGLE_CORE + bool + depends on !BFIN_DUAL_CORE + default y + +choice + prompt "System type" + default BFIN533_STAMP + help + Do NOT change the board here. Please use the top level + configuration to ensure that all the other settings are + correct. + +config BFIN533_EZKIT + bool "BF533-EZKIT" + depends on (BF533 || BF532 || BF531) + help + BF533-EZKIT-LITE board Support. + +config BFIN533_STAMP + bool "BF533-STAMP" + depends on (BF533 || BF532 || BF531) + help + BF533-STAMP board Support. + +config BFIN537_STAMP + bool "BF537-STAMP" + depends on (BF537 || BF536 || BF534) + help + BF537-STAMP board Support. + +config BFIN533_BLUETECHNIX_CM + bool "Bluetechnix CM-BF533" + depends on (BF533) + help + CM-BF533 support for EVAL- and DEV-Board. + +config BFIN537_BLUETECHNIX_CM + bool "Bluetechnix CM-BF537" + depends on (BF537) + help + CM-BF537 support for EVAL- and DEV-Board. + +config BFIN561_BLUETECHNIX_CM + bool "BF561-CM" + depends on (BF561) + help + CM-BF561 support for EVAL- and DEV-Board. + +config BFIN561_EZKIT + bool "BF561-EZKIT" + depends on (BF561) + help + BF561-EZKIT-LITE board Support. + +config PNAV10 + bool "PNAV 1.0 board" + depends on (BF537) + help + PNAV 1.0 board Support. + +config GENERIC_BOARD + bool "Custom" + depends on (BF537 || BF536 \ + || BF534 || BF561 || BF535 || BF533 || BF532 || BF531) + help + GENERIC or Custom board Support. + +endchoice + +config MEM_GENERIC_BOARD + bool + depends on GENERIC_BOARD + default y + +config MEM_MT48LC64M4A2FB_7E + bool + depends on (BFIN533_STAMP) + default y + +config MEM_MT48LC16M16A2TG_75 + bool + depends on (BFIN533_EZKIT || BFIN561_EZKIT \ + || BFIN533_BLUETECHNIX_CM || BFIN537_BLUETECHNIX_CM) + default y + +config MEM_MT48LC32M8A2_75 + bool + depends on (BFIN537_STAMP || PNAV10) + default y + +config MEM_MT48LC8M32B2B5_7 + bool + depends on (BFIN561_BLUETECHNIX_CM) + default y + +config BFIN_SHARED_FLASH_ENET + bool + depends on (BFIN533_STAMP) + default y + +source "arch/blackfin/mach-bf533/Kconfig" +source "arch/blackfin/mach-bf561/Kconfig" +source "arch/blackfin/mach-bf537/Kconfig" + +menu "Board customizations" + +config CMDLINE_BOOL + bool "Default bootloader kernel arguments" + +config CMDLINE + string "Initial kernel command string" + depends on CMDLINE_BOOL + default "console=ttyBF0,57600" + help + If you don't have a boot loader capable of passing a command line string + to the kernel, you may specify one here. As a minimum, you should specify + the memory size and the root device (e.g., mem=8M, root=/dev/nfs). + +comment "Board Setup" + +config CLKIN_HZ + int "Crystal Frequency in Hz" + default "11059200" if BFIN533_STAMP + default "27000000" if BFIN533_EZKIT + default "25000000" if BFIN537_STAMP + default "30000000" if BFIN561_EZKIT + default "24576000" if PNAV10 + help + The frequency of CLKIN crystal oscillator on the board in Hz. + +config MEM_SIZE + int "SDRAM Memory Size in MBytes" + default 32 if BFIN533_EZKIT + default 64 if BFIN537_STAMP + default 64 if BFIN561_EZKIT + default 128 if BFIN533_STAMP + default 64 if PNAV10 + +config MEM_ADD_WIDTH + int "SDRAM Memory Address Width" + default 9 if BFIN533_EZKIT + default 9 if BFIN561_EZKIT + default 10 if BFIN537_STAMP + default 11 if BFIN533_STAMP + default 10 if PNAV10 + +config ENET_FLASH_PIN + int "PF port/pin used for flash and ethernet sharing" + depends on (BFIN533_STAMP) + default 0 + help + PF port/pin used for flash and ethernet sharing to allow other PF + pins to be used on other platforms without having to touch common + code. + For example: PF0 --> 0,PF1 --> 1,PF2 --> 2, etc. + +config BOOT_LOAD + hex "Kernel load address for booting" + default "0x1000" + help + This option allows you to set the load address of the kernel. + This can be useful if you are on a board which has a small amount + of memory or you wish to reserve some memory at the beginning of + the address space. + + Note that you generally want to keep this value at or above 4k + (0x1000) as this will allow the kernel to capture NULL pointer + references. + +comment "LED Status Indicators" + depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM) + +config BFIN_ALIVE_LED + bool "Enable Board Alive" + depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM) + default n + help + Blink the LEDs you select when the kernel is running. Helps detect + a hung kernel. + +config BFIN_ALIVE_LED_NUM + int "LED" + depends on BFIN_ALIVE_LED + range 1 3 if BFIN533_STAMP + default "3" if BFIN533_STAMP + help + Select the LED (marked on the board) for you to blink. + +config BFIN_IDLE_LED + bool "Enable System Load/Idle LED" + depends on (BFIN533_STAMP || BFIN533_BLUETECHNIX_CM) + default n + help + Blinks the LED you select when to determine kernel load. + +config BFIN_IDLE_LED_NUM + int "LED" + depends on BFIN_IDLE_LED + range 1 3 if BFIN533_STAMP + default "2" if BFIN533_STAMP + help + Select the LED (marked on the board) for you to blink. + +# +# Sorry - but you need to put the hex address here - +# + +# Flag Data register +config BFIN_ALIVE_LED_PORT + hex + default 0xFFC00700 if (BFIN533_STAMP) + +# Peripheral Flag Direction Register +config BFIN_ALIVE_LED_DPORT + hex + default 0xFFC00730 if (BFIN533_STAMP) + +config BFIN_ALIVE_LED_PIN + hex + default 0x04 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 1) + default 0x08 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 2) + default 0x10 if (BFIN533_STAMP && BFIN_ALIVE_LED_NUM = 3) + +config BFIN_IDLE_LED_PORT + hex + default 0xFFC00700 if (BFIN533_STAMP) + +# Peripheral Flag Direction Register +config BFIN_IDLE_LED_DPORT + hex + default 0xFFC00730 if (BFIN533_STAMP) + +config BFIN_IDLE_LED_PIN + hex + default 0x04 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 1) + default 0x08 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 2) + default 0x10 if (BFIN533_STAMP && BFIN_IDLE_LED_NUM = 3) + +comment "Console UART Setup" + +choice + prompt "Baud Rate" + default BAUD_57600 +config BAUD_9600 + bool "9600" +config BAUD_19200 + bool "19200" +config BAUD_38400 + bool "38400" +config BAUD_57600 + bool "57600" +config BAUD_115200 + bool "115200" +endchoice + +choice + prompt "Parity" + default BAUD_NO_PARITY +config BAUD_NO_PARITY + bool "No Parity" +config BAUD_PARITY + bool "Parity" +endchoice + +choice + prompt "Stop Bits" + default BAUD_1_STOPBIT +config BAUD_1_STOPBIT + bool "1" +config BAUD_2_STOPBIT + bool "2" +endchoice + +endmenu + + +menu "Blackfin Kernel Optimizations" + +comment "Timer Tick" + +source kernel/Kconfig.hz + +comment "Memory Optimizations" + +config I_ENTRY_L1 + bool "Locate interrupt entry code in L1 Memory" + default y + help + If enabled interrupt entry code (STORE/RESTORE CONTEXT) is linked + into L1 instruction memory.(less latency) + +config EXCPT_IRQ_SYSC_L1 + bool "Locate entire ASM lowlevel excepetion / interrupt - Syscall and CPLB handler code in L1 Memory" + default y + help + If enabled entire ASM lowlevel exception and interrupt entry code (STORE/RESTORE CONTEXT) is linked + into L1 instruction memory.(less latency) + +config DO_IRQ_L1 + bool "Locate frequently called do_irq dispatcher function in L1 Memory" + default y + help + If enabled frequently called do_irq dispatcher function is linked + into L1 instruction memory.(less latency) + +config CORE_TIMER_IRQ_L1 + bool "Locate frequently called timer_interrupt() function in L1 Memory" + default y + help + If enabled frequently called timer_interrupt() function is linked + into L1 instruction memory.(less latency) + +config IDLE_L1 + bool "Locate frequently idle function in L1 Memory" + default y + help + If enabled frequently called idle function is linked + into L1 instruction memory.(less latency) + +config SCHEDULE_L1 + bool "Locate kernel schedule function in L1 Memory" + default y + help + If enabled frequently called kernel schedule is linked + into L1 instruction memory.(less latency) + +config ARITHMETIC_OPS_L1 + bool "Locate kernel owned arithmetic functions in L1 Memory" + default y + help + If enabled arithmetic functions are linked + into L1 instruction memory.(less latency) + +config ACCESS_OK_L1 + bool "Locate access_ok function in L1 Memory" + default y + help + If enabled access_ok function is linked + into L1 instruction memory.(less latency) + +config MEMSET_L1 + bool "Locate memset function in L1 Memory" + default y + help + If enabled memset function is linked + into L1 instruction memory.(less latency) + +config MEMCPY_L1 + bool "Locate memcpy function in L1 Memory" + default y + help + If enabled memcpy function is linked + into L1 instruction memory.(less latency) + +config SYS_BFIN_SPINLOCK_L1 + bool "Locate sys_bfin_spinlock function in L1 Memory" + default y + help + If enabled sys_bfin_spinlock function is linked + into L1 instruction memory.(less latency) + +config IP_CHECKSUM_L1 + bool "Locate IP Checksum function in L1 Memory" + default n + help + If enabled IP Checksum function is linked + into L1 instruction memory.(less latency) + +config CACHELINE_ALIGNED_L1 + bool "Locate cacheline_aligned data to L1 Data Memory" + default y + depends on !BF531 + help + If enabled cacheline_anligned data is linked + into L1 data memory.(less latency) + +config SYSCALL_TAB_L1 + bool "Locate Syscall Table L1 Data Memory" + default n + depends on !BF531 + help + If enabled the Syscall LUT is linked + into L1 data memory.(less latency) + +config CPLB_SWITCH_TAB_L1 + bool "Locate CPLB Switch Tables L1 Data Memory" + default n + depends on !BF531 + help + If enabled the CPLB Switch Tables are linked + into L1 data memory.(less latency) + +endmenu + + +choice + prompt "Kernel executes from" + help + Choose the memory type that the kernel will be running in. + +config RAMKERNEL + bool "RAM" + help + The kernel will be resident in RAM when running. + +config ROMKERNEL + bool "ROM" + help + The kernel will be resident in FLASH/ROM when running. + +endchoice + +source "mm/Kconfig" + +config LARGE_ALLOCS + bool "Allow allocating large blocks (> 1MB) of memory" + help + Allow the slab memory allocator to keep chains for very large + memory sizes - upto 32MB. You may need this if your system has + a lot of RAM, and you need to able to allocate very large + contiguous chunks. If unsure, say N. + +config BFIN_DMA_5XX + bool "Enable DMA Support" + depends on (BF533 || BF532 || BF531 || BF537 || BF536 || BF534 || BF561) + default y + help + DMA driver for BF5xx. + +choice + prompt "Uncached SDRAM region" + default DMA_UNCACHED_1M + depends BFIN_DMA_5XX +config DMA_UNCACHED_2M + bool "Enable 2M DMA region" +config DMA_UNCACHED_1M + bool "Enable 1M DMA region" +config DMA_UNCACHED_NONE + bool "Disable DMA region" +endchoice + + +comment "Cache Support" +config BLKFIN_CACHE + bool "Enable ICACHE" +config BLKFIN_DCACHE + bool "Enable DCACHE" +config BLKFIN_DCACHE_BANKA + bool "Enable only 16k BankA DCACHE - BankB is SRAM" + depends on BLKFIN_DCACHE && !BF531 + default n +config BLKFIN_CACHE_LOCK + bool "Enable Cache Locking" + +choice + prompt "Policy" + depends on BLKFIN_DCACHE + default BLKFIN_WB +config BLKFIN_WB + bool "Write back" + help + Write Back Policy: + Cached data will be written back to SDRAM only when needed. + This can give a nice increase in performance, but beware of + broken drivers that do not properly invalidate/flush their + cache. + + Write Through Policy: + Cached data will always be written back to SDRAM when the + cache is updated. This is a completely safe setting, but + performance is worse than Write Back. + + If you are unsure of the options and you want to be safe, + then go with Write Through. + +config BLKFIN_WT + bool "Write through" + help + Write Back Policy: + Cached data will be written back to SDRAM only when needed. + This can give a nice increase in performance, but beware of + broken drivers that do not properly invalidate/flush their + cache. + + Write Through Policy: + Cached data will always be written back to SDRAM when the + cache is updated. This is a completely safe setting, but + performance is worse than Write Back. + + If you are unsure of the options and you want to be safe, + then go with Write Through. + +endchoice + +config L1_MAX_PIECE + int "Set the max L1 SRAM pieces" + default 16 + help + Set the max memory pieces for the L1 SRAM allocation algorithm. + Min value is 16. Max value is 1024. + +menu "Clock Settings" + + +config BFIN_KERNEL_CLOCK + bool "Re-program Clocks while Kernel boots?" + default n + help + This option decides if kernel clocks are re-programed from the + bootloader settings. If the clocks are not set, the SDRAM settings + are also not changed, and the Bootloader does 100% of the hardware + configuration. + +config VCO_MULT + int "VCO Multiplier" + depends on BFIN_KERNEL_CLOCK + default "22" if BFIN533_EZKIT + default "45" if BFIN533_STAMP + default "20" if BFIN537_STAMP + default "22" if BFIN533_BLUETECHNIX_CM + default "20" if BFIN537_BLUETECHNIX_CM + default "20" if BFIN561_BLUETECHNIX_CM + default "20" if BFIN561_EZKIT + +config CCLK_DIV + int "Core Clock Divider" + depends on BFIN_KERNEL_CLOCK + default 1 if BFIN533_EZKIT + default 1 if BFIN533_STAMP + default 1 if BFIN537_STAMP + default 1 if BFIN533_BLUETECHNIX_CM + default 1 if BFIN537_BLUETECHNIX_CM + default 1 if BFIN561_BLUETECHNIX_CM + default 1 if BFIN561_EZKIT + +config SCLK_DIV + int "System Clock Divider" + depends on BFIN_KERNEL_CLOCK + default 5 if BFIN533_EZKIT + default 5 if BFIN533_STAMP + default 4 if BFIN537_STAMP + default 5 if BFIN533_BLUETECHNIX_CM + default 4 if BFIN537_BLUETECHNIX_CM + default 4 if BFIN561_BLUETECHNIX_CM + default 5 if BFIN561_EZKIT + +config CLKIN_HALF + bool "Half ClockIn" + depends on BFIN_KERNEL_CLOCK + default n + +config PLL_BYPASS + bool "Bypass PLL" + depends on BFIN_KERNEL_CLOCK + default n + +endmenu + +comment "Asynchonous Memory Configuration" + +menu "EBIU_AMBCTL Global Control" +config C_AMCKEN + bool "Enable CLKOUT" + default y + +config C_CDPRIO + bool "DMA has priority over core for ext. accesses" + default n + +config C_B0PEN + depends on BF561 + bool "Bank 0 16 bit packing enable" + default y + +config C_B1PEN + depends on BF561 + bool "Bank 1 16 bit packing enable" + default y + +config C_B2PEN + depends on BF561 + bool "Bank 2 16 bit packing enable" + default y + +config C_B3PEN + depends on BF561 + bool "Bank 3 16 bit packing enable" + default n + +choice + prompt"Enable Asynchonous Memory Banks" + default C_AMBEN_ALL + +config C_AMBEN + bool "Disable All Banks" + +config C_AMBEN_B0 + bool "Enable Bank 0" + +config C_AMBEN_B0_B1 + bool "Enable Bank 0 & 1" + +config C_AMBEN_B0_B1_B2 + bool "Enable Bank 0 & 1 & 2" + +config C_AMBEN_ALL + bool "Enable All Banks" +endchoice +endmenu + +menu "EBIU_AMBCTL Control" +config BANK_0 + hex "Bank 0" + default 0x7BB0 + +config BANK_1 + hex "Bank 1" + default 0x7BB0 + +config BANK_2 + hex "Bank 2" + default 0x7BB0 + +config BANK_3 + hex "Bank 3" + default 0x99B3 +endmenu + +endmenu + +############################################################################# +menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)" + +config PCI + bool "PCI support" + help + Support for PCI bus. + +source "drivers/pci/Kconfig" + +config HOTPLUG + bool "Support for hot-pluggable device" + help + Say Y here if you want to plug devices into your computer while + the system is running, and be able to use them quickly. In many + cases, the devices can likewise be unplugged at any time too. + + One well known example of this is PCMCIA- or PC-cards, credit-card + size devices such as network cards, modems or hard drives which are + plugged into slots found on all modern laptop computers. Another + example, used on modern desktops as well as laptops, is USB. + + Enable HOTPLUG and KMOD, and build a modular kernel. Get agent + software (at <http://linux-hotplug.sourceforge.net/>) and install it. + Then your kernel will automatically call out to a user mode "policy + agent" (/sbin/hotplug) to load modules and set up software needed + to use devices as you hotplug them. + +source "drivers/pcmcia/Kconfig" + +source "drivers/pci/hotplug/Kconfig" + +endmenu + +menu "Executable file formats" + +source "fs/Kconfig.binfmt" + +endmenu + +menu "Power management options" +source "kernel/power/Kconfig" + +choice + prompt "Select PM Wakeup Event Source" + default PM_WAKEUP_GPIO_BY_SIC_IWR + depends on PM + help + If you have a GPIO already configured as input with the corresponding PORTx_MASK + bit set - "Specify Wakeup Event by SIC_IWR value" + +config PM_WAKEUP_GPIO_BY_SIC_IWR + bool "Specify Wakeup Event by SIC_IWR value" +config PM_WAKEUP_BY_GPIO + bool "Cause Wakeup Event by GPIO" +config PM_WAKEUP_GPIO_API + bool "Configure Wakeup Event by PM GPIO API" + +endchoice + +config PM_WAKEUP_SIC_IWR + hex "Wakeup Events (SIC_IWR)" + depends on PM_WAKEUP_GPIO_BY_SIC_IWR + default 0x80000000 if (BF537 || BF536 || BF534) + default 0x100000 if (BF533 || BF532 || BF531) + +config PM_WAKEUP_GPIO_NUMBER + int "Wakeup GPIO number" + range 0 47 + depends on PM_WAKEUP_BY_GPIO + default 2 if BFIN537_STAMP + +choice + prompt "GPIO Polarity" + depends on PM_WAKEUP_BY_GPIO + default PM_WAKEUP_GPIO_POLAR_H +config PM_WAKEUP_GPIO_POLAR_H + bool "Active High" +config PM_WAKEUP_GPIO_POLAR_L + bool "Active Low" +config PM_WAKEUP_GPIO_POLAR_EDGE_F + bool "Falling EDGE" +config PM_WAKEUP_GPIO_POLAR_EDGE_R + bool "Rising EDGE" +config PM_WAKEUP_GPIO_POLAR_EDGE_B + bool "Both EDGE" +endchoice + +endmenu + +if (BF537 || BF533) + +menu "CPU Frequency scaling" + +source "drivers/cpufreq/Kconfig" + +config CPU_FREQ + bool + default n + help + If you want to enable this option, you should select the + DPMC driver from Character Devices. +endmenu + +endif + +source "net/Kconfig" + +source "drivers/Kconfig" + +source "fs/Kconfig" + +source "arch/blackfin/oprofile/Kconfig" + +menu "Kernel hacking" + +source "lib/Kconfig.debug" + +config DEBUG_HWERR + bool "Hardware error interrupt debugging" + depends on DEBUG_KERNEL + help + When enabled, the hardware error interrupt is never disabled, and + will happen immediately when an error condition occurs. This comes + at a slight cost in code size, but is necessary if you are getting + hardware error interrupts and need to know where they are coming + from. + +config DEBUG_ICACHE_CHECK + bool "Check Instruction cache coherancy" + depends on DEBUG_KERNEL + depends on DEBUG_HWERR + help + Say Y here if you are getting wierd unexplained errors. This will + ensure that icache is what SDRAM says it should be, by doing a + byte wise comparision between SDRAM and instruction cache. This + also relocates the irq_panic() function to L1 memory, (which is + un-cached). + +config DEBUG_KERNEL_START + bool "Debug Kernel Startup" + depends on DEBUG_KERNEL + help + Say Y here to put in an mini-execption handler before the kernel + replaces the bootloader exception handler. This will stop kernels + from dieing at startup with no visible error messages. + +config DEBUG_SERIAL_EARLY_INIT + bool "Initialize serial driver early" + default n + depends on SERIAL_BFIN + help + Say Y here if you want to get kernel output early when kernel + crashes before the normal console initialization. If this option + is enable, console output will always go to the ttyBF0, no matter + what kernel boot paramters you set. + +config DEBUG_HUNT_FOR_ZERO + bool "Catch NULL pointer reads/writes" + default y + help + Say Y here to catch reads/writes to anywhere in the memory range + from 0x0000 - 0x0FFF (the first 4k) of memory. This is useful in + catching common programming errors such as NULL pointer dereferences. + + Misbehaving applications will be killed (generate a SEGV) while the + kernel will trigger a panic. + + Enabling this option will take up an extra entry in CPLB table. + Otherwise, there is no extra overhead. + +config DEBUG_BFIN_NO_KERN_HWTRACE + bool "Trace user apps (turn off hwtrace in kernel)" + default n + help + Some pieces of the kernel contain a lot of flow changes which can + quickly fill up the hardware trace buffer. When debugging crashes, + the hardware trace may indicate that the problem lies in kernel + space when in reality an application is buggy. + + Say Y here to disable hardware tracing in some known "jumpy" pieces + of code so that the trace buffer will extend further back. + +config DUAL_CORE_TEST_MODULE + tristate "Dual Core Test Module" + depends on (BF561) + default n + help + Say Y here to build-in dual core test module for dual core test. + +config CPLB_INFO + bool "Display the CPLB information" + help + Display the CPLB information. + +config ACCESS_CHECK + bool "Check the user pointer address" + default y + help + Usually the pointer transfer from user space is checked to see if its + address is in the kernel space. + + Say N here to disable that check to improve the performance. + +endmenu + +source "security/Kconfig" + +source "crypto/Kconfig" + +source "lib/Kconfig" diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile new file mode 100644 index 0000000..52d4dbd --- /dev/null +++ b/arch/blackfin/Makefile @@ -0,0 +1,80 @@ +# +# arch/blackfin/Makefile +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. +# + + +CROSS_COMPILE ?= bfin-uclinux- +LDFLAGS_vmlinux := -X +OBJCOPYFLAGS := -O binary -R .note -R .comment -S +GZFLAGS := -9 + +CFLAGS_MODULE += -mlong-calls +KALLSYMS += --symbol-prefix=_ + + +# setup the machine name and the machine dependent settings +machine-$(CONFIG_BF531) := bf533 +machine-$(CONFIG_BF532) := bf533 +machine-$(CONFIG_BF533) := bf533 +machine-$(CONFIG_BF534) := bf537 +machine-$(CONFIG_BF536) := bf537 +machine-$(CONFIG_BF537) := bf537 +machine-$(CONFIG_BF561) := bf561 +MACHINE := $(machine-y) +export MACHINE + + +head-y := arch/$(ARCH)/mach-$(MACHINE)/head.o arch/$(ARCH)/kernel/init_task.o + +core-y += arch/$(ARCH)/kernel/ arch/$(ARCH)/mm/ arch/$(ARCH)/mach-common/ + +# If we have a machine-specific directory, then include it in the build. +ifneq ($(machine-y),) +core-y += arch/$(ARCH)/mach-$(MACHINE)/ +core-y += arch/$(ARCH)/mach-$(MACHINE)/boards/ +endif + +libs-y += arch/$(ARCH)/lib/ + +drivers-$(CONFIG_OPROFILE) += arch/$(ARCH)/oprofile/ + + + +# Update machine arch symlinks if something which affects +# them changed. We use .mach to indicate when they were updated +# last, otherwise make uses the target directory mtime. + +include/asm-blackfin/.mach: $(wildcard include/config/arch/*.h) include/config/auto.conf + @echo ' SYMLINK include/asm-$(ARCH)/mach-$(MACHINE) -> include/asm-$(ARCH)/mach' +ifneq ($(KBUILD_SRC),) + $(Q)mkdir -p include/asm-$(ARCH) + $(Q)ln -fsn $(srctree)/include/asm-$(ARCH)/mach-$(MACHINE) include/asm-$(ARCH)/mach +else + $(Q)ln -fsn mach-$(MACHINE) include/asm-$(ARCH)/mach +endif + @touch $@ + +CLEAN_FILES += \ + include/asm-$(ARCH)/asm-offsets.h \ + arch/$(ARCH)/kernel/asm-offsets.s \ + include/asm-$(ARCH)/mach \ + include/asm-$(ARCH)/.mach + +archprepare: include/asm-blackfin/.mach +archclean: + $(Q)$(MAKE) $(clean)=$(boot) + + +all: vmImage +boot := arch/$(ARCH)/boot +BOOT_TARGETS = vmImage +.PHONY: $(BOOT_TARGETS) +$(BOOT_TARGETS): vmlinux + $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ +define archhelp + echo '* vmImage - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage)' +endef diff --git a/arch/blackfin/boot/Makefile b/arch/blackfin/boot/Makefile new file mode 100644 index 0000000..49e8098 --- /dev/null +++ b/arch/blackfin/boot/Makefile @@ -0,0 +1,27 @@ +# +# arch/blackfin/boot/Makefile +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. +# + +MKIMAGE := $(srctree)/scripts/mkuboot.sh + +targets := vmImage +extra-y += vmlinux.bin vmlinux.gz + +quiet_cmd_uimage = UIMAGE $@ + cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(ARCH) -O linux -T kernel \ + -C gzip -a $(CONFIG_BOOT_LOAD) -e $(CONFIG_BOOT_LOAD) -n 'Linux-$(KERNELRELEASE)' \ + -d $< $@ + +$(obj)/vmlinux.bin: vmlinux FORCE + $(call if_changed,objcopy) + +$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE + $(call if_changed,gzip) + +$(obj)/vmImage: $(obj)/vmlinux.gz + $(call if_changed,uimage) + @echo 'Kernel: $@ is ready' diff --git a/arch/blackfin/defconfig b/arch/blackfin/defconfig new file mode 100644 index 0000000..d5904ca --- /dev/null +++ b/arch/blackfin/defconfig @@ -0,0 +1,1314 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.20 +# +# CONFIG_MMU is not set +# CONFIG_FPU is not set +CONFIG_RWSEM_GENERIC_SPINLOCK=y +# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set +CONFIG_BFIN=y +CONFIG_SEMAPHORE_SLEEPERS=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_UCLINUX=y +CONFIG_FORCE_MAX_ZONEORDER=14 +CONFIG_IRQCHIP_DEMUX_GPIO=y +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SYSVIPC=y +# CONFIG_IPC_NS is not set +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set +# CONFIG_UTS_NS is not set +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +CONFIG_SYSFS_DEPRECATED=y +# CONFIG_RELAY is not set +CONFIG_INITRAMFS_SOURCE="" +# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_SYSCTL=y +CONFIG_EMBEDDED=y +CONFIG_UID16=y +CONFIG_SYSCTL_SYSCALL=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_EPOLL=y +# CONFIG_LIMIT_PAGECACHE is not set +CONFIG_BUDDY=y +# CONFIG_NP2 is not set +CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y +CONFIG_RT_MUTEXES=y +CONFIG_TINY_SHMEM=y +CONFIG_BASE_SMALL=0 +# CONFIG_SLOB is not set + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# Block layer +# +CONFIG_BLOCK=y +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +# CONFIG_IOSCHED_DEADLINE is not set +CONFIG_IOSCHED_CFQ=y +CONFIG_DEFAULT_AS=y +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="anticipatory" + +# +# Blackfin Processor Options +# + +# +# Processor and Board Settings +# +# CONFIG_BF531 is not set +# CONFIG_BF532 is not set +# CONFIG_BF533 is not set +# CONFIG_BF534 is not set +# CONFIG_BF535 is not set +# CONFIG_BF536 is not set +CONFIG_BF537=y +# CONFIG_BF561 is not set +CONFIG_BF_REV_0_2=y +# CONFIG_BF_REV_0_3 is not set +# CONFIG_BF_REV_0_4 is not set +# CONFIG_BF_REV_0_5 is not set +CONFIG_BLACKFIN=y +CONFIG_BFIN_SINGLE_CORE=y +# CONFIG_BFIN533_EZKIT is not set +# CONFIG_BFIN533_STAMP is not set +CONFIG_BFIN537_STAMP=y +# CONFIG_BFIN533_BLUETECHNIX_CM is not set +# CONFIG_BFIN537_BLUETECHNIX_CM is not set +# CONFIG_BFIN561_BLUETECHNIX_CM is not set +# CONFIG_BFIN561_EZKIT is not set +# CONFIG_PNAV10 is not set +# CONFIG_GENERIC_BOARD is not set +CONFIG_MEM_MT48LC32M8A2_75=y +CONFIG_IRQ_PLL_WAKEUP=7 + +# +# BF537 Specific Configuration +# + +# +# PORT F/G Selection +# +CONFIG_BF537_PORT_F=y +# CONFIG_BF537_PORT_G is not set +# CONFIG_BF537_PORT_H is not set + +# +# Interrupt Priority Assignment +# + +# +# Priority +# +CONFIG_IRQ_DMA_ERROR=7 +CONFIG_IRQ_ERROR=7 +CONFIG_IRQ_RTC=8 +CONFIG_IRQ_PPI=8 +CONFIG_IRQ_SPORT0_RX=9 +CONFIG_IRQ_SPORT0_TX=9 +CONFIG_IRQ_SPORT1_RX=9 +CONFIG_IRQ_SPORT1_TX=9 +CONFIG_IRQ_TWI=10 +CONFIG_IRQ_SPI=10 +CONFIG_IRQ_UART0_RX=10 +CONFIG_IRQ_UART0_TX=10 +CONFIG_IRQ_UART1_RX=10 +CONFIG_IRQ_UART1_TX=10 +CONFIG_IRQ_CAN_RX=11 +CONFIG_IRQ_CAN_TX=11 +CONFIG_IRQ_MAC_RX=11 +CONFIG_IRQ_MAC_TX=11 +CONFIG_IRQ_TMR0=12 +CONFIG_IRQ_TMR1=12 +CONFIG_IRQ_TMR2=12 +CONFIG_IRQ_TMR3=12 +CONFIG_IRQ_TMR4=12 +CONFIG_IRQ_TMR5=12 +CONFIG_IRQ_TMR6=12 +CONFIG_IRQ_TMR7=12 +CONFIG_IRQ_PROG_INTA=12 +CONFIG_IRQ_PORTG_INTB=12 +CONFIG_IRQ_MEM_DMA0=13 +CONFIG_IRQ_MEM_DMA1=13 +CONFIG_IRQ_WATCH=13 + +# +# Board customizations +# + +# +# Board Setup +# +CONFIG_CLKIN_HZ=25000000 +CONFIG_MEM_SIZE=64 +CONFIG_MEM_ADD_WIDTH=10 +CONFIG_BOOT_LOAD=0x1000 + +# +# Console UART Setup +# +# CONFIG_BAUD_9600 is not set +# CONFIG_BAUD_19200 is not set +# CONFIG_BAUD_38400 is not set +CONFIG_BAUD_57600=y +# CONFIG_BAUD_115200 is not set +CONFIG_BAUD_NO_PARITY=y +# CONFIG_BAUD_PARITY is not set +CONFIG_BAUD_1_STOPBIT=y +# CONFIG_BAUD_2_STOPBIT is not set + +# +# Blackfin Kernel Optimizations +# + +# +# Timer Tick +# +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y +# CONFIG_HZ_300 is not set +# CONFIG_HZ_1000 is not set +CONFIG_HZ=250 + +# +# Memory Optimizations +# +CONFIG_I_ENTRY_L1=y +CONFIG_RAMKERNEL=y +# CONFIG_ROMKERNEL is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 +# CONFIG_RESOURCES_64BIT is not set +CONFIG_LARGE_ALLOCS=y +CONFIG_BFIN_DMA_5XX=y +# CONFIG_DMA_UNCACHED_2M is not set +CONFIG_DMA_UNCACHED_1M=y +# CONFIG_DMA_UNCACHED_NONE is not set + +# +# Cache Support +# +CONFIG_BLKFIN_CACHE=y +CONFIG_BLKFIN_DCACHE=y +# CONFIG_BLKFIN_CACHE_LOCK is not set +# CONFIG_BLKFIN_WB is not set +CONFIG_BLKFIN_WT=y +CONFIG_L1_MAX_PIECE=16 + +# +# Clock Settings +# +# CONFIG_BFIN_KERNEL_CLOCK is not set + +# +# Asynchonous Memory Configuration +# + +# +# EBIU_AMBCTL Global Control +# +CONFIG_C_AMCKEN=y +CONFIG_C_CDPRIO=y +# CONFIG_C_AMBEN is not set +# CONFIG_C_AMBEN_B0 is not set +# CONFIG_C_AMBEN_B0_B1 is not set +# CONFIG_C_AMBEN_B0_B1_B2 is not set +CONFIG_C_AMBEN_ALL=y + +# +# EBIU_AMBCTL Control +# +CONFIG_BANK_0=0x7BB0 +CONFIG_BANK_1=0x7BB0 +CONFIG_BANK_2=0x7BB0 +CONFIG_BANK_3=0x99B3 + +# +# Bus options (PCI, PCMCIA, EISA, MCA, ISA) +# +# CONFIG_PCI is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# + +# +# Executable file formats +# +CONFIG_BINFMT_ELF_FDPIC=y +CONFIG_BINFMT_FLAT=y +CONFIG_BINFMT_ZFLAT=y +# CONFIG_BINFMT_SHARED_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options +# +CONFIG_PM=y +CONFIG_PM_LEGACY=y +# CONFIG_PM_DEBUG is not set +# CONFIG_PM_SYSFS_DEPRECATED is not set +CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR=y +# CONFIG_PM_WAKEUP_BY_GPIO is not set +# CONFIG_PM_WAKEUP_GPIO_API is not set +CONFIG_PM_WAKEUP_SIC_IWR=0x80000000 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set +# CONFIG_XFRM_SUB_POLICY is not set +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_PNP=y +# CONFIG_IP_PNP_DHCP is not set +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +CONFIG_SYN_COOKIES=y +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_INET_XFRM_MODE_BEET=y +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_TCP_MD5SIG is not set +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETLABEL is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +CONFIG_IRDA=m + +# +# IrDA protocols +# +CONFIG_IRLAN=m +CONFIG_IRCOMM=m +# CONFIG_IRDA_ULTRA is not set + +# +# IrDA options +# +CONFIG_IRDA_CACHE_LAST_LSAP=y +# CONFIG_IRDA_FAST_RR is not set +# CONFIG_IRDA_DEBUG is not set + +# +# Infrared-port device drivers +# + +# +# SIR device drivers +# +CONFIG_IRTTY_SIR=m + +# +# Dongle support +# +# CONFIG_DONGLE is not set + +# +# Old SIR device drivers +# +# CONFIG_IRPORT_SIR is not set + +# +# Old Serial dongle support +# + +# +# FIR device drivers +# +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +# CONFIG_FW_LOADER is not set +# CONFIG_SYS_HYPERVISOR is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +CONFIG_MTD=y +# CONFIG_MTD_DEBUG is not set +# CONFIG_MTD_CONCAT is not set +CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_REDBOOT_PARTS is not set +# CONFIG_MTD_CMDLINE_PARTS is not set + +# +# User Modules And Translation Layers +# +CONFIG_MTD_CHAR=m +CONFIG_MTD_BLKDEVS=y +CONFIG_MTD_BLOCK=y +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set +# CONFIG_SSFDC is not set + +# +# RAM/ROM/Flash chip drivers +# +# CONFIG_MTD_CFI is not set +CONFIG_MTD_JEDECPROBE=m +CONFIG_MTD_GEN_PROBE=m +# CONFIG_MTD_CFI_ADV_OPTIONS is not set +CONFIG_MTD_MAP_BANK_WIDTH_1=y +CONFIG_MTD_MAP_BANK_WIDTH_2=y +CONFIG_MTD_MAP_BANK_WIDTH_4=y +# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set +CONFIG_MTD_CFI_I1=y +CONFIG_MTD_CFI_I2=y +# CONFIG_MTD_CFI_I4 is not set +# CONFIG_MTD_CFI_I8 is not set +# CONFIG_MTD_CFI_INTELEXT is not set +# CONFIG_MTD_CFI_AMDSTD is not set +# CONFIG_MTD_CFI_STAA is not set +CONFIG_MTD_MW320D=m +CONFIG_MTD_RAM=y +CONFIG_MTD_ROM=m +# CONFIG_MTD_ABSENT is not set +# CONFIG_MTD_OBSOLETE_CHIPS is not set + +# +# Mapping drivers for chip access +# +CONFIG_MTD_COMPLEX_MAPPINGS=y +# CONFIG_MTD_PHYSMAP is not set +CONFIG_MTD_BF5xx=m +CONFIG_BFIN_FLASH_SIZE=0x400000 +CONFIG_EBIU_FLASH_BASE=0x20000000 + +# +# FLASH_EBIU_AMBCTL Control +# +CONFIG_BFIN_FLASH_BANK_0=0x7BB0 +CONFIG_BFIN_FLASH_BANK_1=0x7BB0 +CONFIG_BFIN_FLASH_BANK_2=0x7BB0 +CONFIG_BFIN_FLASH_BANK_3=0x7BB0 +CONFIG_MTD_UCLINUX=y +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_DATAFLASH is not set +# CONFIG_MTD_M25P80 is not set +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD is not set + +# +# Disk-On-Chip Device Drivers +# +# CONFIG_MTD_DOC2000 is not set +# CONFIG_MTD_DOC2001 is not set +# CONFIG_MTD_DOC2001PLUS is not set + +# +# NAND Flash Device Drivers +# +CONFIG_MTD_NAND=m +# CONFIG_MTD_NAND_VERIFY_WRITE is not set +# CONFIG_MTD_NAND_ECC_SMC is not set +CONFIG_MTD_NAND_BFIN=m +CONFIG_BFIN_NAND_BASE=0x20212000 +CONFIG_BFIN_NAND_CLE=2 +CONFIG_BFIN_NAND_ALE=1 +CONFIG_BFIN_NAND_READY=3 +CONFIG_MTD_NAND_IDS=m +# CONFIG_MTD_NAND_DISKONCHIP is not set +# CONFIG_MTD_NAND_NANDSIM is not set + +# +# OneNAND Flash Device Drivers +# +# CONFIG_MTD_ONENAND is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# CONFIG_BLK_DEV_COW_COMMON is not set +# CONFIG_BLK_DEV_LOOP is not set +# CONFIG_BLK_DEV_NBD is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# Misc devices +# +# CONFIG_TIFM_CORE is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +# CONFIG_SCSI is not set +# CONFIG_SCSI_NETLINK is not set + +# +# Serial ATA (prod) and Parallel ATA (experimental) drivers +# +# CONFIG_ATA is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set + +# +# IEEE 1394 (FireWire) support +# + +# +# I2O device support +# + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_SMC91X is not set +CONFIG_BFIN_MAC=y +CONFIG_BFIN_MAC_USE_L1=y +CONFIG_BFIN_TX_DESC_NUM=10 +CONFIG_BFIN_RX_DESC_NUM=20 +# CONFIG_BFIN_MAC_RMII is not set + +# +# Ethernet (1000 Mbit) +# + +# +# Ethernet (10000 Mbit) +# + +# +# Token Ring devices +# + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y +# CONFIG_INPUT_FF_MEMLESS is not set + +# +# Userland interfaces +# +# CONFIG_INPUT_MOUSEDEV is not set +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +CONFIG_INPUT_EVDEV=m +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +CONFIG_INPUT_MISC=y +# CONFIG_INPUT_UINPUT is not set +# CONFIG_BF53X_PFBUTTONS is not set +CONFIG_TWI_KEYPAD=m +CONFIG_BFIN_TWIKEYPAD_IRQ_PFX=72 + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_AD9960 is not set +# CONFIG_SPI_ADC_BF533 is not set +# CONFIG_BF533_PFLAGS is not set +# CONFIG_BF5xx_PPIFCD is not set +# CONFIG_BF5xx_TIMERS is not set +# CONFIG_BF5xx_PPI is not set +CONFIG_BFIN_SPORT=y +# CONFIG_BFIN_TIMER_LATENCY is not set +CONFIG_TWI_LCD=m +CONFIG_TWI_LCD_SLAVE_ADDR=34 +# CONFIG_AD5304 is not set +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_BFIN=y +CONFIG_SERIAL_BFIN_CONSOLE=y +CONFIG_SERIAL_BFIN_DMA=y +# CONFIG_SERIAL_BFIN_PIO is not set +CONFIG_SERIAL_BFIN_UART0=y +# CONFIG_BFIN_UART0_CTSRTS is not set +# CONFIG_SERIAL_BFIN_UART1 is not set +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_BFIN_SPORT is not set +CONFIG_UNIX98_PTYS=y +# CONFIG_LEGACY_PTYS is not set + +# +# CAN, the car bus and industrial fieldbus +# +CONFIG_CAN4LINUX=y + +# +# linux embedded drivers +# +# CONFIG_CAN_MCF5282 is not set +# CONFIG_CAN_UNCTWINCAN is not set +CONFIG_CAN_BLACKFIN=m + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +CONFIG_HW_RANDOM=y +# CONFIG_GEN_RTC is not set +CONFIG_BLACKFIN_DPMC=y +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set + +# +# I2C support +# +CONFIG_I2C=m +CONFIG_I2C_CHARDEV=m + +# +# I2C Algorithms +# +# CONFIG_I2C_ALGOBIT is not set +# CONFIG_I2C_ALGOPCF is not set +# CONFIG_I2C_ALGOPCA is not set + +# +# I2C Hardware Bus support +# +# CONFIG_I2C_BFIN_GPIO is not set +CONFIG_I2C_BFIN_TWI=m +CONFIG_TWICLK_KHZ=50 +# CONFIG_I2C_OCORES is not set +# CONFIG_I2C_PARPORT_LIGHT is not set +# CONFIG_I2C_STUB is not set +# CONFIG_I2C_PCA_ISA is not set + +# +# Miscellaneous I2C Chip support +# +# CONFIG_SENSORS_DS1337 is not set +# CONFIG_SENSORS_DS1374 is not set +CONFIG_SENSORS_AD5252=m +# CONFIG_SENSORS_EEPROM is not set +# CONFIG_SENSORS_PCF8574 is not set +# CONFIG_SENSORS_PCF8575 is not set +# CONFIG_SENSORS_PCA9539 is not set +# CONFIG_SENSORS_PCF8591 is not set +# CONFIG_SENSORS_MAX6875 is not set +# CONFIG_I2C_DEBUG_CORE is not set +# CONFIG_I2C_DEBUG_ALGO is not set +# CONFIG_I2C_DEBUG_BUS is not set +# CONFIG_I2C_DEBUG_CHIP is not set + +# +# SPI support +# +CONFIG_SPI=y +CONFIG_SPI_MASTER=y + +# +# SPI Master Controller Drivers +# +# CONFIG_SPI_BITBANG is not set +CONFIG_SPI_BFIN=y + +# +# SPI Protocol Masters +# + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_SENSORS_ABITUGURU is not set +# CONFIG_SENSORS_ADM1021 is not set +# CONFIG_SENSORS_ADM1025 is not set +# CONFIG_SENSORS_ADM1026 is not set +# CONFIG_SENSORS_ADM1031 is not set +# CONFIG_SENSORS_ADM9240 is not set +# CONFIG_SENSORS_ASB100 is not set +# CONFIG_SENSORS_ATXP1 is not set +# CONFIG_SENSORS_DS1621 is not set +# CONFIG_SENSORS_F71805F is not set +# CONFIG_SENSORS_FSCHER is not set +# CONFIG_SENSORS_FSCPOS is not set +# CONFIG_SENSORS_GL518SM is not set +# CONFIG_SENSORS_GL520SM is not set +# CONFIG_SENSORS_IT87 is not set +# CONFIG_SENSORS_LM63 is not set +# CONFIG_SENSORS_LM70 is not set +# CONFIG_SENSORS_LM75 is not set +# CONFIG_SENSORS_LM77 is not set +# CONFIG_SENSORS_LM78 is not set +# CONFIG_SENSORS_LM80 is not set +# CONFIG_SENSORS_LM83 is not set +# CONFIG_SENSORS_LM85 is not set +# CONFIG_SENSORS_LM87 is not set +# CONFIG_SENSORS_LM90 is not set +# CONFIG_SENSORS_LM92 is not set +# CONFIG_SENSORS_MAX1619 is not set +# CONFIG_SENSORS_PC87360 is not set +# CONFIG_SENSORS_PC87427 is not set +# CONFIG_SENSORS_SMSC47M1 is not set +# CONFIG_SENSORS_SMSC47M192 is not set +# CONFIG_SENSORS_SMSC47B397 is not set +# CONFIG_SENSORS_VT1211 is not set +# CONFIG_SENSORS_W83781D is not set +# CONFIG_SENSORS_W83791D is not set +# CONFIG_SENSORS_W83792D is not set +# CONFIG_SENSORS_W83793 is not set +# CONFIG_SENSORS_W83L785TS is not set +# CONFIG_SENSORS_W83627HF is not set +# CONFIG_SENSORS_W83627EHF is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +CONFIG_FIRMWARE_EDID=y +CONFIG_FB=m +CONFIG_FB_CFB_FILLRECT=m +CONFIG_FB_CFB_COPYAREA=m +CONFIG_FB_CFB_IMAGEBLIT=m +# CONFIG_FB_MACMODES is not set +# CONFIG_FB_BACKLIGHT is not set +# CONFIG_FB_MODE_HELPERS is not set +# CONFIG_FB_TILEBLITTING is not set +CONFIG_FB_BFIN_7171=m +CONFIG_FB_BFIN_7393=m +CONFIG_NTSC=y +# CONFIG_PAL is not set +# CONFIG_NTSC_640x480 is not set +# CONFIG_PAL_640x480 is not set +# CONFIG_NTSC_YCBCR is not set +# CONFIG_PAL_YCBCR is not set +CONFIG_ADV7393_1XMEM=y +# CONFIG_ADV7393_2XMEM is not set +CONFIG_FB_BF537_LQ035=m +CONFIG_LQ035_SLAVE_ADDR=0x58 +# CONFIG_FB_BFIN_LANDSCAPE is not set +# CONFIG_FB_BFIN_BGR is not set +# CONFIG_FB_S1D13XXX is not set +# CONFIG_FB_VIRTUAL is not set + +# +# Logo configuration +# +# CONFIG_LOGO is not set +CONFIG_BACKLIGHT_LCD_SUPPORT=y +CONFIG_BACKLIGHT_CLASS_DEVICE=m +CONFIG_BACKLIGHT_DEVICE=y +CONFIG_LCD_CLASS_DEVICE=m +CONFIG_LCD_DEVICE=y + +# +# Sound +# +CONFIG_SOUND=m + +# +# Advanced Linux Sound Architecture +# +CONFIG_SND=m +CONFIG_SND_TIMER=m +CONFIG_SND_PCM=m +# CONFIG_SND_SEQUENCER is not set +CONFIG_SND_OSSEMUL=y +CONFIG_SND_MIXER_OSS=m +CONFIG_SND_PCM_OSS=m +CONFIG_SND_PCM_OSS_PLUGINS=y +# CONFIG_SND_DYNAMIC_MINORS is not set +CONFIG_SND_SUPPORT_OLD_API=y +CONFIG_SND_VERBOSE_PROCFS=y +# CONFIG_SND_VERBOSE_PRINTK is not set +# CONFIG_SND_DEBUG is not set + +# +# Generic devices +# +# CONFIG_SND_DUMMY is not set +# CONFIG_SND_MTPAV is not set +# CONFIG_SND_SERIAL_U16550 is not set +# CONFIG_SND_MPU401 is not set + +# +# Open Sound System +# +# CONFIG_SOUND_PRIME is not set + +# +# HID Devices +# +CONFIG_HID=y + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +# CONFIG_USB_ARCH_HAS_OHCI is not set +# CONFIG_USB_ARCH_HAS_EHCI is not set +# CONFIG_USB is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_SPI_MMC is not set +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +CONFIG_RTC_LIB=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_HCTOSYS=y +CONFIG_RTC_HCTOSYS_DEVICE="rtc0" +# CONFIG_RTC_DEBUG is not set + +# +# RTC interfaces +# +CONFIG_RTC_INTF_SYSFS=y +CONFIG_RTC_INTF_PROC=y +CONFIG_RTC_INTF_DEV=y +# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set + +# +# RTC drivers +# +# CONFIG_RTC_DRV_X1205 is not set +# CONFIG_RTC_DRV_DS1307 is not set +# CONFIG_RTC_DRV_DS1553 is not set +# CONFIG_RTC_DRV_ISL1208 is not set +# CONFIG_RTC_DRV_DS1672 is not set +# CONFIG_RTC_DRV_DS1742 is not set +# CONFIG_RTC_DRV_PCF8563 is not set +# CONFIG_RTC_DRV_PCF8583 is not set +# CONFIG_RTC_DRV_RS5C348 is not set +# CONFIG_RTC_DRV_RS5C372 is not set +# CONFIG_RTC_DRV_M48T86 is not set +# CONFIG_RTC_DRV_TEST is not set +# CONFIG_RTC_DRV_MAX6902 is not set +# CONFIG_RTC_DRV_V3020 is not set +CONFIG_RTC_DRV_BFIN=y + +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + +# +# Virtualization +# + +# +# PBX support +# +# CONFIG_PBX is not set + +# +# File systems +# +CONFIG_EXT2_FS=y +CONFIG_EXT2_FS_XATTR=y +# CONFIG_EXT2_FS_POSIX_ACL is not set +# CONFIG_EXT2_FS_SECURITY is not set +# CONFIG_EXT3_FS is not set +# CONFIG_EXT4DEV_FS is not set +CONFIG_FS_MBCACHE=y +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +# CONFIG_MSDOS_FS is not set +# CONFIG_VFAT_FS is not set +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_SYSCTL=y +CONFIG_SYSFS=y +# CONFIG_TMPFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +CONFIG_YAFFS_FS=m +CONFIG_YAFFS_YAFFS1=y +# CONFIG_YAFFS_DOES_ECC is not set +CONFIG_YAFFS_YAFFS2=y +CONFIG_YAFFS_AUTO_YAFFS2=y +# CONFIG_YAFFS_DISABLE_LAZY_LOAD is not set +CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS=10 +# CONFIG_YAFFS_DISABLE_WIDE_TNODES is not set +# CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED is not set +CONFIG_YAFFS_SHORT_NAMES_IN_RAM=y +CONFIG_JFFS2_FS=m +CONFIG_JFFS2_FS_DEBUG=0 +CONFIG_JFFS2_FS_WRITEBUFFER=y +# CONFIG_JFFS2_SUMMARY is not set +# CONFIG_JFFS2_FS_XATTR is not set +# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set +CONFIG_JFFS2_ZLIB=y +CONFIG_JFFS2_RTIME=y +# CONFIG_JFFS2_RUBIN is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +CONFIG_NFS_FS=m +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +# CONFIG_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +# CONFIG_NFSD is not set +CONFIG_LOCKD=m +CONFIG_LOCKD_V4=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=m +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +CONFIG_SMB_FS=m +# CONFIG_SMB_NLS_DEFAULT is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +CONFIG_NLS=m +CONFIG_NLS_DEFAULT="iso8859-1" +# CONFIG_NLS_CODEPAGE_437 is not set +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +# CONFIG_NLS_ISO8859_1 is not set +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set + +# +# Distributed Lock Manager +# +# CONFIG_DLM is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +CONFIG_ENABLE_MUST_CHECK=y +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_UNUSED_SYMBOLS is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_HEADERS_CHECK is not set +# CONFIG_DEBUG_KERNEL is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_DEBUG_BUGVERBOSE is not set +CONFIG_DEBUG_HUNT_FOR_ZERO=y +# CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE is not set +# CONFIG_BOOTPARAM is not set +# CONFIG_NO_KERNEL_MSG is not set +CONFIG_CPLB_INFO=y +# CONFIG_NO_ACCESS_CHECK is not set + +# +# Security options +# +# CONFIG_KEYS is not set +CONFIG_SECURITY=y +# CONFIG_SECURITY_NETWORK is not set +CONFIG_SECURITY_CAPABILITIES=y + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Library routines +# +CONFIG_BITREVERSE=y +CONFIG_CRC_CCITT=m +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y +CONFIG_ZLIB_DEFLATE=m +CONFIG_PLIST=y +CONFIG_IOMAP_COPY=y diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile new file mode 100644 index 0000000..f3b7d2f --- /dev/null +++ b/arch/blackfin/kernel/Makefile @@ -0,0 +1,14 @@ +# +# arch/blackfin/kernel/Makefile +# + +extra-y := init_task.o vmlinux.lds + +obj-y := \ + entry.o process.o bfin_ksyms.o ptrace.o setup.o signal.o \ + sys_bfin.o time.o traps.o irqchip.o dma-mapping.o bfin_gpio.o \ + flat.o + +obj-$(CONFIG_MODULES) += module.o +obj-$(CONFIG_BFIN_DMA_5XX) += bfin_dma_5xx.o +obj-$(CONFIG_DUAL_CORE_TEST_MODULE) += dualcore_test.o diff --git a/arch/blackfin/kernel/asm-offsets.c b/arch/blackfin/kernel/asm-offsets.c new file mode 100644 index 0000000..41d9a9f --- /dev/null +++ b/arch/blackfin/kernel/asm-offsets.c @@ -0,0 +1,136 @@ +/* + * File: arch/blackfin/kernel/asm-offsets.c + * Based on: + * Author: + * + * Created: + * Description: generate definitions needed by assembly language modules. + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/stddef.h> +#include <linux/sched.h> +#include <linux/kernel_stat.h> +#include <linux/ptrace.h> +#include <linux/hardirq.h> +#include <asm/irq.h> +#include <asm/thread_info.h> + +#define DEFINE(sym, val) \ + asm volatile("\n->" #sym " %0 " #val : : "i" (val)) + +int main(void) +{ + /* offsets into the task struct */ + DEFINE(TASK_STATE, offsetof(struct task_struct, state)); + DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags)); + DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace)); + DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked)); + DEFINE(TASK_THREAD, offsetof(struct task_struct, thread)); + DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, thread_info)); + DEFINE(TASK_MM, offsetof(struct task_struct, mm)); + DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm)); + DEFINE(TASK_SIGPENDING, offsetof(struct task_struct, pending)); + + /* offsets into the irq_cpustat_t struct */ + DEFINE(CPUSTAT_SOFTIRQ_PENDING, + offsetof(irq_cpustat_t, __softirq_pending)); + + /* offsets into the thread struct */ + DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp)); + DEFINE(THREAD_USP, offsetof(struct thread_struct, usp)); + DEFINE(THREAD_SR, offsetof(struct thread_struct, seqstat)); + DEFINE(PT_SR, offsetof(struct thread_struct, seqstat)); + DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0)); + DEFINE(THREAD_PC, offsetof(struct thread_struct, pc)); + DEFINE(KERNEL_STACK_SIZE, THREAD_SIZE); + + /* offsets into the pt_regs */ + DEFINE(PT_ORIG_P0, offsetof(struct pt_regs, orig_p0)); + DEFINE(PT_ORIG_PC, offsetof(struct pt_regs, orig_pc)); + DEFINE(PT_R0, offsetof(struct pt_regs, r0)); + DEFINE(PT_R1, offsetof(struct pt_regs, r1)); + DEFINE(PT_R2, offsetof(struct pt_regs, r2)); + DEFINE(PT_R3, offsetof(struct pt_regs, r3)); + DEFINE(PT_R4, offsetof(struct pt_regs, r4)); + DEFINE(PT_R5, offsetof(struct pt_regs, r5)); + DEFINE(PT_R6, offsetof(struct pt_regs, r6)); + DEFINE(PT_R7, offsetof(struct pt_regs, r7)); + + DEFINE(PT_P0, offsetof(struct pt_regs, p0)); + DEFINE(PT_P1, offsetof(struct pt_regs, p1)); + DEFINE(PT_P2, offsetof(struct pt_regs, p2)); + DEFINE(PT_P3, offsetof(struct pt_regs, p3)); + DEFINE(PT_P4, offsetof(struct pt_regs, p4)); + DEFINE(PT_P5, offsetof(struct pt_regs, p5)); + + DEFINE(PT_FP, offsetof(struct pt_regs, fp)); + DEFINE(PT_USP, offsetof(struct pt_regs, usp)); + DEFINE(PT_I0, offsetof(struct pt_regs, i0)); + DEFINE(PT_I1, offsetof(struct pt_regs, i1)); + DEFINE(PT_I2, offsetof(struct pt_regs, i2)); + DEFINE(PT_I3, offsetof(struct pt_regs, i3)); + DEFINE(PT_M0, offsetof(struct pt_regs, m0)); + DEFINE(PT_M1, offsetof(struct pt_regs, m1)); + DEFINE(PT_M2, offsetof(struct pt_regs, m2)); + DEFINE(PT_M3, offsetof(struct pt_regs, m3)); + DEFINE(PT_L0, offsetof(struct pt_regs, l0)); + DEFINE(PT_L1, offsetof(struct pt_regs, l1)); + DEFINE(PT_L2, offsetof(struct pt_regs, l2)); + DEFINE(PT_L3, offsetof(struct pt_regs, l3)); + DEFINE(PT_B0, offsetof(struct pt_regs, b0)); + DEFINE(PT_B1, offsetof(struct pt_regs, b1)); + DEFINE(PT_B2, offsetof(struct pt_regs, b2)); + DEFINE(PT_B3, offsetof(struct pt_regs, b3)); + DEFINE(PT_A0X, offsetof(struct pt_regs, a0x)); + DEFINE(PT_A0W, offsetof(struct pt_regs, a0w)); + DEFINE(PT_A1X, offsetof(struct pt_regs, a1x)); + DEFINE(PT_A1W, offsetof(struct pt_regs, a1w)); + DEFINE(PT_LC0, offsetof(struct pt_regs, lc0)); + DEFINE(PT_LC1, offsetof(struct pt_regs, lc1)); + DEFINE(PT_LT0, offsetof(struct pt_regs, lt0)); + DEFINE(PT_LT1, offsetof(struct pt_regs, lt1)); + DEFINE(PT_LB0, offsetof(struct pt_regs, lb0)); + DEFINE(PT_LB1, offsetof(struct pt_regs, lb1)); + DEFINE(PT_ASTAT, offsetof(struct pt_regs, astat)); + DEFINE(PT_RESERVED, offsetof(struct pt_regs, reserved)); + DEFINE(PT_RETS, offsetof(struct pt_regs, rets)); + DEFINE(PT_PC, offsetof(struct pt_regs, pc)); + DEFINE(PT_RETX, offsetof(struct pt_regs, retx)); + DEFINE(PT_RETN, offsetof(struct pt_regs, retn)); + DEFINE(PT_RETE, offsetof(struct pt_regs, rete)); + DEFINE(PT_SEQSTAT, offsetof(struct pt_regs, seqstat)); + DEFINE(PT_SYSCFG, offsetof(struct pt_regs, syscfg)); + DEFINE(PT_IPEND, offsetof(struct pt_regs, ipend)); + DEFINE(SIZEOF_PTREGS, sizeof(struct pt_regs)); + DEFINE(PT_TEXT_ADDR, sizeof(struct pt_regs)); /* Needed by gdb */ + DEFINE(PT_TEXT_END_ADDR, 4 + sizeof(struct pt_regs));/* Needed by gdb */ + DEFINE(PT_DATA_ADDR, 8 + sizeof(struct pt_regs)); /* Needed by gdb */ + DEFINE(PT_FDPIC_EXEC, 12 + sizeof(struct pt_regs)); /* Needed by gdb */ + DEFINE(PT_FDPIC_INTERP, 16 + sizeof(struct pt_regs));/* Needed by gdb */ + + /* signal defines */ + DEFINE(SIGSEGV, SIGSEGV); + DEFINE(SIGTRAP, SIGTRAP); + + return 0; +} diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c new file mode 100644 index 0000000..8ea079e --- /dev/null +++ b/arch/blackfin/kernel/bfin_dma_5xx.c @@ -0,0 +1,742 @@ +/* + * File: arch/blackfin/kernel/bfin_dma_5xx.c + * Based on: + * Author: + * + * Created: + * Description: This file contains the simple DMA Implementation for Blackfin + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/param.h> + +#include <asm/dma.h> +#include <asm/cacheflush.h> + +/* Remove unused code not exported by symbol or internally called */ +#define REMOVE_DEAD_CODE + +/************************************************************************** + * Global Variables +***************************************************************************/ + +static struct dma_channel dma_ch[MAX_BLACKFIN_DMA_CHANNEL]; +#if defined (CONFIG_BF561) +static struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = { + (struct dma_register *) DMA1_0_NEXT_DESC_PTR, + (struct dma_register *) DMA1_1_NEXT_DESC_PTR, + (struct dma_register *) DMA1_2_NEXT_DESC_PTR, + (struct dma_register *) DMA1_3_NEXT_DESC_PTR, + (struct dma_register *) DMA1_4_NEXT_DESC_PTR, + (struct dma_register *) DMA1_5_NEXT_DESC_PTR, + (struct dma_register *) DMA1_6_NEXT_DESC_PTR, + (struct dma_register *) DMA1_7_NEXT_DESC_PTR, + (struct dma_register *) DMA1_8_NEXT_DESC_PTR, + (struct dma_register *) DMA1_9_NEXT_DESC_PTR, + (struct dma_register *) DMA1_10_NEXT_DESC_PTR, + (struct dma_register *) DMA1_11_NEXT_DESC_PTR, + (struct dma_register *) DMA2_0_NEXT_DESC_PTR, + (struct dma_register *) DMA2_1_NEXT_DESC_PTR, + (struct dma_register *) DMA2_2_NEXT_DESC_PTR, + (struct dma_register *) DMA2_3_NEXT_DESC_PTR, + (struct dma_register *) DMA2_4_NEXT_DESC_PTR, + (struct dma_register *) DMA2_5_NEXT_DESC_PTR, + (struct dma_register *) DMA2_6_NEXT_DESC_PTR, + (struct dma_register *) DMA2_7_NEXT_DESC_PTR, + (struct dma_register *) DMA2_8_NEXT_DESC_PTR, + (struct dma_register *) DMA2_9_NEXT_DESC_PTR, + (struct dma_register *) DMA2_10_NEXT_DESC_PTR, + (struct dma_register *) DMA2_11_NEXT_DESC_PTR, + (struct dma_register *) MDMA1_D0_NEXT_DESC_PTR, + (struct dma_register *) MDMA1_S0_NEXT_DESC_PTR, + (struct dma_register *) MDMA1_D1_NEXT_DESC_PTR, + (struct dma_register *) MDMA1_S1_NEXT_DESC_PTR, + (struct dma_register *) MDMA2_D0_NEXT_DESC_PTR, + (struct dma_register *) MDMA2_S0_NEXT_DESC_PTR, + (struct dma_register *) MDMA2_D1_NEXT_DESC_PTR, + (struct dma_register *) MDMA2_S1_NEXT_DESC_PTR, + (struct dma_register *) IMDMA_D0_NEXT_DESC_PTR, + (struct dma_register *) IMDMA_S0_NEXT_DESC_PTR, + (struct dma_register *) IMDMA_D1_NEXT_DESC_PTR, + (struct dma_register *) IMDMA_S1_NEXT_DESC_PTR, +}; +#else +static struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = { + (struct dma_register *) DMA0_NEXT_DESC_PTR, + (struct dma_register *) DMA1_NEXT_DESC_PTR, + (struct dma_register *) DMA2_NEXT_DESC_PTR, + (struct dma_register *) DMA3_NEXT_DESC_PTR, + (struct dma_register *) DMA4_NEXT_DESC_PTR, + (struct dma_register *) DMA5_NEXT_DESC_PTR, + (struct dma_register *) DMA6_NEXT_DESC_PTR, + (struct dma_register *) DMA7_NEXT_DESC_PTR, +#if (defined(CONFIG_BF537) || defined(CONFIG_BF534) || defined(CONFIG_BF536)) + (struct dma_register *) DMA8_NEXT_DESC_PTR, + (struct dma_register *) DMA9_NEXT_DESC_PTR, + (struct dma_register *) DMA10_NEXT_DESC_PTR, + (struct dma_register *) DMA11_NEXT_DESC_PTR, +#endif + (struct dma_register *) MDMA_D0_NEXT_DESC_PTR, + (struct dma_register *) MDMA_S0_NEXT_DESC_PTR, + (struct dma_register *) MDMA_D1_NEXT_DESC_PTR, + (struct dma_register *) MDMA_S1_NEXT_DESC_PTR, +}; +#endif + +/*------------------------------------------------------------------------------ + * Set the Buffer Clear bit in the Configuration register of specific DMA + * channel. This will stop the descriptor based DMA operation. + *-----------------------------------------------------------------------------*/ +static void clear_dma_buffer(unsigned int channel) +{ + dma_ch[channel].regs->cfg |= RESTART; + SSYNC(); + dma_ch[channel].regs->cfg &= ~RESTART; + SSYNC(); +} + +int __init blackfin_dma_init(void) +{ + int i; + + printk(KERN_INFO "Blackfin DMA Controller\n"); + + for (i = 0; i < MAX_BLACKFIN_DMA_CHANNEL; i++) { + dma_ch[i].chan_status = DMA_CHANNEL_FREE; + dma_ch[i].regs = base_addr[i]; + mutex_init(&(dma_ch[i].dmalock)); + } + + return 0; +} + +arch_initcall(blackfin_dma_init); + +/* + * Form the channel find the irq number for that channel. + */ +#if !defined(CONFIG_BF561) + +static int bf533_channel2irq(unsigned int channel) +{ + int ret_irq = -1; + + switch (channel) { + case CH_PPI: + ret_irq = IRQ_PPI; + break; + +#if (defined(CONFIG_BF537) || defined(CONFIG_BF534) || defined(CONFIG_BF536)) + case CH_EMAC_RX: + ret_irq = IRQ_MAC_RX; + break; + + case CH_EMAC_TX: + ret_irq = IRQ_MAC_TX; + break; + + case CH_UART1_RX: + ret_irq = IRQ_UART1_RX; + break; + + case CH_UART1_TX: + ret_irq = IRQ_UART1_TX; + break; +#endif + + case CH_SPORT0_RX: + ret_irq = IRQ_SPORT0_RX; + break; + + case CH_SPORT0_TX: + ret_irq = IRQ_SPORT0_TX; + break; + + case CH_SPORT1_RX: + ret_irq = IRQ_SPORT1_RX; + break; + + case CH_SPORT1_TX: + ret_irq = IRQ_SPORT1_TX; + break; + + case CH_SPI: + ret_irq = IRQ_SPI; + break; + + case CH_UART_RX: + ret_irq = IRQ_UART_RX; + break; + + case CH_UART_TX: + ret_irq = IRQ_UART_TX; + break; + + case CH_MEM_STREAM0_SRC: + case CH_MEM_STREAM0_DEST: + ret_irq = IRQ_MEM_DMA0; + break; + + case CH_MEM_STREAM1_SRC: + case CH_MEM_STREAM1_DEST: + ret_irq = IRQ_MEM_DMA1; + break; + } + return ret_irq; +} + +# define channel2irq(channel) bf533_channel2irq(channel) + +#else + +static int bf561_channel2irq(unsigned int channel) +{ + int ret_irq = -1; + + switch (channel) { + case CH_PPI0: + ret_irq = IRQ_PPI0; + break; + case CH_PPI1: + ret_irq = IRQ_PPI1; + break; + case CH_SPORT0_RX: + ret_irq = IRQ_SPORT0_RX; + break; + case CH_SPORT0_TX: + ret_irq = IRQ_SPORT0_TX; + break; + case CH_SPORT1_RX: + ret_irq = IRQ_SPORT1_RX; + break; + case CH_SPORT1_TX: + ret_irq = IRQ_SPORT1_TX; + break; + case CH_SPI: + ret_irq = IRQ_SPI; + break; + case CH_UART_RX: + ret_irq = IRQ_UART_RX; + break; + case CH_UART_TX: + ret_irq = IRQ_UART_TX; + break; + + case CH_MEM_STREAM0_SRC: + case CH_MEM_STREAM0_DEST: + ret_irq = IRQ_MEM_DMA0; + break; + case CH_MEM_STREAM1_SRC: + case CH_MEM_STREAM1_DEST: + ret_irq = IRQ_MEM_DMA1; + break; + case CH_MEM_STREAM2_SRC: + case CH_MEM_STREAM2_DEST: + ret_irq = IRQ_MEM_DMA2; + break; + case CH_MEM_STREAM3_SRC: + case CH_MEM_STREAM3_DEST: + ret_irq = IRQ_MEM_DMA3; + break; + + case CH_IMEM_STREAM0_SRC: + case CH_IMEM_STREAM0_DEST: + ret_irq = IRQ_IMEM_DMA0; + break; + case CH_IMEM_STREAM1_SRC: + case CH_IMEM_STREAM1_DEST: + ret_irq = IRQ_IMEM_DMA1; + break; + } + return ret_irq; +} + +# define channel2irq(channel) bf561_channel2irq(channel) + +#endif + +/*------------------------------------------------------------------------------ + * Request the specific DMA channel from the system. + *-----------------------------------------------------------------------------*/ +int request_dma(unsigned int channel, char *device_id) +{ + + pr_debug("request_dma() : BEGIN \n"); + mutex_lock(&(dma_ch[channel].dmalock)); + + if ((dma_ch[channel].chan_status == DMA_CHANNEL_REQUESTED) + || (dma_ch[channel].chan_status == DMA_CHANNEL_ENABLED)) { + mutex_unlock(&(dma_ch[channel].dmalock)); + pr_debug("DMA CHANNEL IN USE \n"); + return -EBUSY; + } else { + dma_ch[channel].chan_status = DMA_CHANNEL_REQUESTED; + pr_debug("DMA CHANNEL IS ALLOCATED \n"); + } + + mutex_unlock(&(dma_ch[channel].dmalock)); + + dma_ch[channel].device_id = device_id; + dma_ch[channel].irq_callback = NULL; + + /* This is to be enabled by putting a restriction - + * you have to request DMA, before doing any operations on + * descriptor/channel + */ + pr_debug("request_dma() : END \n"); + return channel; +} +EXPORT_SYMBOL(request_dma); + +int set_dma_callback(unsigned int channel, dma_interrupt_t callback, void *data) +{ + int ret_irq = 0; + + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + if (callback != NULL) { + int ret_val; + ret_irq = channel2irq(channel); + + dma_ch[channel].data = data; + + ret_val = + request_irq(ret_irq, (void *)callback, IRQF_DISABLED, + dma_ch[channel].device_id, data); + if (ret_val) { + printk(KERN_NOTICE + "Request irq in DMA engine failed.\n"); + return -EPERM; + } + dma_ch[channel].irq_callback = callback; + } + return 0; +} +EXPORT_SYMBOL(set_dma_callback); + +void free_dma(unsigned int channel) +{ + int ret_irq; + + pr_debug("freedma() : BEGIN \n"); + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + /* Halt the DMA */ + disable_dma(channel); + clear_dma_buffer(channel); + + if (dma_ch[channel].irq_callback != NULL) { + ret_irq = channel2irq(channel); + free_irq(ret_irq, dma_ch[channel].data); + } + + /* Clear the DMA Variable in the Channel */ + mutex_lock(&(dma_ch[channel].dmalock)); + dma_ch[channel].chan_status = DMA_CHANNEL_FREE; + mutex_unlock(&(dma_ch[channel].dmalock)); + + pr_debug("freedma() : END \n"); +} +EXPORT_SYMBOL(free_dma); + +void dma_enable_irq(unsigned int channel) +{ + int ret_irq; + + pr_debug("dma_enable_irq() : BEGIN \n"); + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + ret_irq = channel2irq(channel); + enable_irq(ret_irq); +} +EXPORT_SYMBOL(dma_enable_irq); + +void dma_disable_irq(unsigned int channel) +{ + int ret_irq; + + pr_debug("dma_disable_irq() : BEGIN \n"); + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + ret_irq = channel2irq(channel); + disable_irq(ret_irq); +} +EXPORT_SYMBOL(dma_disable_irq); + +int dma_channel_active(unsigned int channel) +{ + if (dma_ch[channel].chan_status == DMA_CHANNEL_FREE) { + return 0; + } else { + return 1; + } +} +EXPORT_SYMBOL(dma_channel_active); + +/*------------------------------------------------------------------------------ +* stop the specific DMA channel. +*-----------------------------------------------------------------------------*/ +void disable_dma(unsigned int channel) +{ + pr_debug("stop_dma() : BEGIN \n"); + + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + dma_ch[channel].regs->cfg &= ~DMAEN; /* Clean the enable bit */ + SSYNC(); + dma_ch[channel].chan_status = DMA_CHANNEL_REQUESTED; + /* Needs to be enabled Later */ + pr_debug("stop_dma() : END \n"); + return; +} +EXPORT_SYMBOL(disable_dma); + +void enable_dma(unsigned int channel) +{ + pr_debug("enable_dma() : BEGIN \n"); + + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + dma_ch[channel].chan_status = DMA_CHANNEL_ENABLED; + dma_ch[channel].regs->curr_x_count = 0; + dma_ch[channel].regs->curr_y_count = 0; + + dma_ch[channel].regs->cfg |= DMAEN; /* Set the enable bit */ + SSYNC(); + pr_debug("enable_dma() : END \n"); + return; +} +EXPORT_SYMBOL(enable_dma); + +/*------------------------------------------------------------------------------ +* Set the Start Address register for the specific DMA channel +* This function can be used for register based DMA, +* to setup the start address +* addr: Starting address of the DMA Data to be transferred. +*-----------------------------------------------------------------------------*/ +void set_dma_start_addr(unsigned int channel, unsigned long addr) +{ + pr_debug("set_dma_start_addr() : BEGIN \n"); + + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + dma_ch[channel].regs->start_addr = addr; + SSYNC(); + pr_debug("set_dma_start_addr() : END\n"); +} +EXPORT_SYMBOL(set_dma_start_addr); + +void set_dma_next_desc_addr(unsigned int channel, unsigned long addr) +{ + pr_debug("set_dma_next_desc_addr() : BEGIN \n"); + + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + dma_ch[channel].regs->next_desc_ptr = addr; + SSYNC(); + pr_debug("set_dma_start_addr() : END\n"); +} +EXPORT_SYMBOL(set_dma_next_desc_addr); + +void set_dma_x_count(unsigned int channel, unsigned short x_count) +{ + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + dma_ch[channel].regs->x_count = x_count; + SSYNC(); +} +EXPORT_SYMBOL(set_dma_x_count); + +void set_dma_y_count(unsigned int channel, unsigned short y_count) +{ + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + dma_ch[channel].regs->y_count = y_count; + SSYNC(); +} +EXPORT_SYMBOL(set_dma_y_count); + +void set_dma_x_modify(unsigned int channel, short x_modify) +{ + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + dma_ch[channel].regs->x_modify = x_modify; + SSYNC(); +} +EXPORT_SYMBOL(set_dma_x_modify); + +void set_dma_y_modify(unsigned int channel, short y_modify) +{ + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + dma_ch[channel].regs->y_modify = y_modify; + SSYNC(); +} +EXPORT_SYMBOL(set_dma_y_modify); + +void set_dma_config(unsigned int channel, unsigned short config) +{ + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + dma_ch[channel].regs->cfg = config; + SSYNC(); +} +EXPORT_SYMBOL(set_dma_config); + +unsigned short +set_bfin_dma_config(char direction, char flow_mode, + char intr_mode, char dma_mode, char width) +{ + unsigned short config; + + config = + ((direction << 1) | (width << 2) | (dma_mode << 4) | + (intr_mode << 6) | (flow_mode << 12) | RESTART); + return config; +} +EXPORT_SYMBOL(set_bfin_dma_config); + +void set_dma_sg(unsigned int channel, struct dmasg * sg, int nr_sg) +{ + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + dma_ch[channel].regs->cfg |= ((nr_sg & 0x0F) << 8); + + dma_ch[channel].regs->next_desc_ptr = (unsigned int)sg; + + SSYNC(); +} +EXPORT_SYMBOL(set_dma_sg); + +/*------------------------------------------------------------------------------ + * Get the DMA status of a specific DMA channel from the system. + *-----------------------------------------------------------------------------*/ +unsigned short get_dma_curr_irqstat(unsigned int channel) +{ + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + return dma_ch[channel].regs->irq_status; +} +EXPORT_SYMBOL(get_dma_curr_irqstat); + +/*------------------------------------------------------------------------------ + * Clear the DMA_DONE bit in DMA status. Stop the DMA completion interrupt. + *-----------------------------------------------------------------------------*/ +void clear_dma_irqstat(unsigned int channel) +{ + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + dma_ch[channel].regs->irq_status |= 3; +} +EXPORT_SYMBOL(clear_dma_irqstat); + +/*------------------------------------------------------------------------------ + * Get current DMA xcount of a specific DMA channel from the system. + *-----------------------------------------------------------------------------*/ +unsigned short get_dma_curr_xcount(unsigned int channel) +{ + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + return dma_ch[channel].regs->curr_x_count; +} +EXPORT_SYMBOL(get_dma_curr_xcount); + +/*------------------------------------------------------------------------------ + * Get current DMA ycount of a specific DMA channel from the system. + *-----------------------------------------------------------------------------*/ +unsigned short get_dma_curr_ycount(unsigned int channel) +{ + BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE + && channel < MAX_BLACKFIN_DMA_CHANNEL)); + + return dma_ch[channel].regs->curr_y_count; +} +EXPORT_SYMBOL(get_dma_curr_ycount); + +void *dma_memcpy(void *dest, const void *src, size_t size) +{ + int direction; /* 1 - address decrease, 0 - address increase */ + int flag_align; /* 1 - address aligned, 0 - address unaligned */ + int flag_2D; /* 1 - 2D DMA needed, 0 - 1D DMA needed */ + + if (size <= 0) + return NULL; + + if ((unsigned long)src < memory_end) + blackfin_dcache_flush_range((unsigned int)src, + (unsigned int)(src + size)); + + bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR); + + if ((unsigned long)src < (unsigned long)dest) + direction = 1; + else + direction = 0; + + if ((((unsigned long)dest % 2) == 0) && (((unsigned long)src % 2) == 0) + && ((size % 2) == 0)) + flag_align = 1; + else + flag_align = 0; + + if (size > 0x10000) /* size > 64K */ + flag_2D = 1; + else + flag_2D = 0; + + /* Setup destination and source start address */ + if (direction) { + if (flag_align) { + bfin_write_MDMA_D0_START_ADDR(dest + size - 2); + bfin_write_MDMA_S0_START_ADDR(src + size - 2); + } else { + bfin_write_MDMA_D0_START_ADDR(dest + size - 1); + bfin_write_MDMA_S0_START_ADDR(src + size - 1); + } + } else { + bfin_write_MDMA_D0_START_ADDR(dest); + bfin_write_MDMA_S0_START_ADDR(src); + } + + /* Setup destination and source xcount */ + if (flag_2D) { + if (flag_align) { + bfin_write_MDMA_D0_X_COUNT(1024 / 2); + bfin_write_MDMA_S0_X_COUNT(1024 / 2); + } else { + bfin_write_MDMA_D0_X_COUNT(1024); + bfin_write_MDMA_S0_X_COUNT(1024); + } + bfin_write_MDMA_D0_Y_COUNT(size >> 10); + bfin_write_MDMA_S0_Y_COUNT(size >> 10); + } else { + if (flag_align) { + bfin_write_MDMA_D0_X_COUNT(size / 2); + bfin_write_MDMA_S0_X_COUNT(size / 2); + } else { + bfin_write_MDMA_D0_X_COUNT(size); + bfin_write_MDMA_S0_X_COUNT(size); + } + } + + /* Setup destination and source xmodify and ymodify */ + if (direction) { + if (flag_align) { + bfin_write_MDMA_D0_X_MODIFY(-2); + bfin_write_MDMA_S0_X_MODIFY(-2); + if (flag_2D) { + bfin_write_MDMA_D0_Y_MODIFY(-2); + bfin_write_MDMA_S0_Y_MODIFY(-2); + } + } else { + bfin_write_MDMA_D0_X_MODIFY(-1); + bfin_write_MDMA_S0_X_MODIFY(-1); + if (flag_2D) { + bfin_write_MDMA_D0_Y_MODIFY(-1); + bfin_write_MDMA_S0_Y_MODIFY(-1); + } + } + } else { + if (flag_align) { + bfin_write_MDMA_D0_X_MODIFY(2); + bfin_write_MDMA_S0_X_MODIFY(2); + if (flag_2D) { + bfin_write_MDMA_D0_Y_MODIFY(2); + bfin_write_MDMA_S0_Y_MODIFY(2); + } + } else { + bfin_write_MDMA_D0_X_MODIFY(1); + bfin_write_MDMA_S0_X_MODIFY(1); + if (flag_2D) { + bfin_write_MDMA_D0_Y_MODIFY(1); + bfin_write_MDMA_S0_Y_MODIFY(1); + } + } + } + + /* Enable source DMA */ + if (flag_2D) { + if (flag_align) { + bfin_write_MDMA_S0_CONFIG(DMAEN | DMA2D | WDSIZE_16); + bfin_write_MDMA_D0_CONFIG(WNR | DI_EN | DMAEN | DMA2D | WDSIZE_16); + } else { + bfin_write_MDMA_S0_CONFIG(DMAEN | DMA2D); + bfin_write_MDMA_D0_CONFIG(WNR | DI_EN | DMAEN | DMA2D); + } + } else { + if (flag_align) { + bfin_write_MDMA_S0_CONFIG(DMAEN | WDSIZE_16); + bfin_write_MDMA_D0_CONFIG(WNR | DI_EN | DMAEN | WDSIZE_16); + } else { + bfin_write_MDMA_S0_CONFIG(DMAEN); + bfin_write_MDMA_D0_CONFIG(WNR | DI_EN | DMAEN); + } + } + + while (!(bfin_read_MDMA_D0_IRQ_STATUS() & DMA_DONE)) + ; + + bfin_write_MDMA_D0_IRQ_STATUS(bfin_read_MDMA_D0_IRQ_STATUS() | + (DMA_DONE | DMA_ERR)); + + bfin_write_MDMA_S0_CONFIG(0); + bfin_write_MDMA_D0_CONFIG(0); + + if ((unsigned long)dest < memory_end) + blackfin_dcache_invalidate_range((unsigned int)dest, + (unsigned int)(dest + size)); + + return dest; +} +EXPORT_SYMBOL(dma_memcpy); + +void *safe_dma_memcpy(void *dest, const void *src, size_t size) +{ + int flags = 0; + void *addr; + local_irq_save(flags); + addr = dma_memcpy(dest, src, size); + local_irq_restore(flags); + return addr; +} +EXPORT_SYMBOL(safe_dma_memcpy); diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c new file mode 100644 index 0000000..e9f24a9 --- /dev/null +++ b/arch/blackfin/kernel/bfin_gpio.c @@ -0,0 +1,637 @@ +/* + * File: arch/blackfin/kernel/bfin_gpio.c + * Based on: + * Author: Michael Hennerich (hennerich@blackfin.uclinux.org) + * + * Created: + * Description: GPIO Abstraction Layer + * + * Modified: + * Copyright 2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* +* Number BF537/6/4 BF561 BF533/2/1 +* +* GPIO_0 PF0 PF0 PF0 +* GPIO_1 PF1 PF1 PF1 +* GPIO_2 PF2 PF2 PF2 +* GPIO_3 PF3 PF3 PF3 +* GPIO_4 PF4 PF4 PF4 +* GPIO_5 PF5 PF5 PF5 +* GPIO_6 PF6 PF6 PF6 +* GPIO_7 PF7 PF7 PF7 +* GPIO_8 PF8 PF8 PF8 +* GPIO_9 PF9 PF9 PF9 +* GPIO_10 PF10 PF10 PF10 +* GPIO_11 PF11 PF11 PF11 +* GPIO_12 PF12 PF12 PF12 +* GPIO_13 PF13 PF13 PF13 +* GPIO_14 PF14 PF14 PF14 +* GPIO_15 PF15 PF15 PF15 +* GPIO_16 PG0 PF16 +* GPIO_17 PG1 PF17 +* GPIO_18 PG2 PF18 +* GPIO_19 PG3 PF19 +* GPIO_20 PG4 PF20 +* GPIO_21 PG5 PF21 +* GPIO_22 PG6 PF22 +* GPIO_23 PG7 PF23 +* GPIO_24 PG8 PF24 +* GPIO_25 PG9 PF25 +* GPIO_26 PG10 PF26 +* GPIO_27 PG11 PF27 +* GPIO_28 PG12 PF28 +* GPIO_29 PG13 PF29 +* GPIO_30 PG14 PF30 +* GPIO_31 PG15 PF31 +* GPIO_32 PH0 PF32 +* GPIO_33 PH1 PF33 +* GPIO_34 PH2 PF34 +* GPIO_35 PH3 PF35 +* GPIO_36 PH4 PF36 +* GPIO_37 PH5 PF37 +* GPIO_38 PH6 PF38 +* GPIO_39 PH7 PF39 +* GPIO_40 PH8 PF40 +* GPIO_41 PH9 PF41 +* GPIO_42 PH10 PF42 +* GPIO_43 PH11 PF43 +* GPIO_44 PH12 PF44 +* GPIO_45 PH13 PF45 +* GPIO_46 PH14 PF46 +* GPIO_47 PH15 PF47 +*/ + +#include <linux/module.h> +#include <linux/err.h> +#include <asm/blackfin.h> +#include <asm/gpio.h> +#include <linux/irq.h> + +#ifdef BF533_FAMILY +static struct gpio_port_t *gpio_bankb[gpio_bank(MAX_BLACKFIN_GPIOS)] = { + (struct gpio_port_t *) FIO_FLAG_D, +}; +#endif + +#ifdef BF537_FAMILY +static struct gpio_port_t *gpio_bankb[gpio_bank(MAX_BLACKFIN_GPIOS)] = { + (struct gpio_port_t *) PORTFIO, + (struct gpio_port_t *) PORTGIO, + (struct gpio_port_t *) PORTHIO, +}; + +static unsigned short *port_fer[gpio_bank(MAX_BLACKFIN_GPIOS)] = { + (unsigned short *) PORTF_FER, + (unsigned short *) PORTG_FER, + (unsigned short *) PORTH_FER, +}; + +#endif + +#ifdef BF561_FAMILY +static struct gpio_port_t *gpio_bankb[gpio_bank(MAX_BLACKFIN_GPIOS)] = { + (struct gpio_port_t *) FIO0_FLAG_D, + (struct gpio_port_t *) FIO1_FLAG_D, + (struct gpio_port_t *) FIO2_FLAG_D, +}; +#endif + +static unsigned short reserved_map[gpio_bank(MAX_BLACKFIN_GPIOS)]; + +#ifdef CONFIG_PM +static unsigned short wakeup_map[gpio_bank(MAX_BLACKFIN_GPIOS)]; +static unsigned char wakeup_flags_map[MAX_BLACKFIN_GPIOS]; +static struct gpio_port_s gpio_bank_saved[gpio_bank(MAX_BLACKFIN_GPIOS)]; + +#ifdef BF533_FAMILY +static unsigned int sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PROG_INTB}; +#endif + +#ifdef BF537_FAMILY +static unsigned int sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PROG_INTB, IRQ_PORTG_INTB, IRQ_MAC_TX}; +#endif + +#ifdef BF561_FAMILY +static unsigned int sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PROG0_INTB, IRQ_PROG1_INTB, IRQ_PROG2_INTB}; +#endif + +#endif /* CONFIG_PM */ + +inline int check_gpio(unsigned short gpio) +{ + if (gpio > MAX_BLACKFIN_GPIOS) + return -EINVAL; + return 0; +} + +#ifdef BF537_FAMILY +void port_setup(unsigned short gpio, unsigned short usage) +{ + if (usage == GPIO_USAGE) { + if (*port_fer[gpio_bank(gpio)] & gpio_bit(gpio)) + printk(KERN_WARNING "bfin-gpio: Possible Conflict with Peripheral " + "usage and GPIO %d detected!\n", gpio); + *port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio); + } else + *port_fer[gpio_bank(gpio)] |= gpio_bit(gpio); + SSYNC(); +} +#else +# define port_setup(...) do { } while (0) +#endif + + +void default_gpio(unsigned short gpio) +{ + unsigned short bank,bitmask; + + bank = gpio_bank(gpio); + bitmask = gpio_bit(gpio); + + gpio_bankb[bank]->maska_clear = bitmask; + gpio_bankb[bank]->maskb_clear = bitmask; + SSYNC(); + gpio_bankb[bank]->inen &= ~bitmask; + gpio_bankb[bank]->dir &= ~bitmask; + gpio_bankb[bank]->polar &= ~bitmask; + gpio_bankb[bank]->both &= ~bitmask; + gpio_bankb[bank]->edge &= ~bitmask; +} + + +int __init bfin_gpio_init(void) +{ + int i; + + printk(KERN_INFO "Blackfin GPIO Controller\n"); + + for (i = 0; i < MAX_BLACKFIN_GPIOS; i+=GPIO_BANKSIZE) + reserved_map[gpio_bank(i)] = 0; + +#if defined(BF537_FAMILY) && (defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)) +# if defined(CONFIG_BFIN_MAC_RMII) + reserved_map[PORT_H] = 0xC373; +# else + reserved_map[PORT_H] = 0xFFFF; +# endif +#endif + + return 0; +} + +arch_initcall(bfin_gpio_init); + + +/*********************************************************** +* +* FUNCTIONS: Blackfin General Purpose Ports Access Functions +* +* INPUTS/OUTPUTS: +* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS +* +* +* DESCRIPTION: These functions abstract direct register access +* to Blackfin processor General Purpose +* Ports Regsiters +* +* CAUTION: These functions do not belong to the GPIO Driver API +************************************************************* +* MODIFICATION HISTORY : +**************************************************************/ + +/* Set a specific bit */ + +#define SET_GPIO(name) \ +void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \ +{ \ + unsigned long flags; \ + BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); \ + local_irq_save(flags); \ + if (arg) \ + gpio_bankb[gpio_bank(gpio)]->name |= gpio_bit(gpio); \ + else \ + gpio_bankb[gpio_bank(gpio)]->name &= ~gpio_bit(gpio); \ + local_irq_restore(flags); \ +} \ +EXPORT_SYMBOL(set_gpio_ ## name); + +SET_GPIO(dir) +SET_GPIO(inen) +SET_GPIO(polar) +SET_GPIO(edge) +SET_GPIO(both) + + +#define SET_GPIO_SC(name) \ +void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \ +{ \ + BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); \ + if (arg) \ + gpio_bankb[gpio_bank(gpio)]->name ## _set = gpio_bit(gpio); \ + else \ + gpio_bankb[gpio_bank(gpio)]->name ## _clear = gpio_bit(gpio); \ +} \ +EXPORT_SYMBOL(set_gpio_ ## name); + +SET_GPIO_SC(maska) +SET_GPIO_SC(maskb) + +#if defined(ANOMALY_05000311) +void set_gpio_data(unsigned short gpio, unsigned short arg) +{ + unsigned long flags; + BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); + local_irq_save(flags); + if (arg) + gpio_bankb[gpio_bank(gpio)]->data_set = gpio_bit(gpio); + else + gpio_bankb[gpio_bank(gpio)]->data_clear = gpio_bit(gpio); + bfin_read_CHIPID(); + local_irq_restore(flags); +} +EXPORT_SYMBOL(set_gpio_data); +#else +SET_GPIO_SC(data) +#endif + + +#if defined(ANOMALY_05000311) +void set_gpio_toggle(unsigned short gpio) +{ + unsigned long flags; + BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); + local_irq_save(flags); + gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio); + bfin_read_CHIPID(); + local_irq_restore(flags); +} +#else +void set_gpio_toggle(unsigned short gpio) +{ + BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); + gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio); +} +#endif +EXPORT_SYMBOL(set_gpio_toggle); + + +/*Set current PORT date (16-bit word)*/ + +#define SET_GPIO_P(name) \ +void set_gpiop_ ## name(unsigned short gpio, unsigned short arg) \ +{ \ + gpio_bankb[gpio_bank(gpio)]->name = arg; \ +} \ +EXPORT_SYMBOL(set_gpiop_ ## name); + +SET_GPIO_P(dir) +SET_GPIO_P(inen) +SET_GPIO_P(polar) +SET_GPIO_P(edge) +SET_GPIO_P(both) +SET_GPIO_P(maska) +SET_GPIO_P(maskb) + + +#if defined(ANOMALY_05000311) +void set_gpiop_data(unsigned short gpio, unsigned short arg) +{ + unsigned long flags; + local_irq_save(flags); + gpio_bankb[gpio_bank(gpio)]->data = arg; + bfin_read_CHIPID(); + local_irq_restore(flags); +} +EXPORT_SYMBOL(set_gpiop_data); +#else +SET_GPIO_P(data) +#endif + + + +/* Get a specific bit */ + +#define GET_GPIO(name) \ +unsigned short get_gpio_ ## name(unsigned short gpio) \ +{ \ + return (0x01 & (gpio_bankb[gpio_bank(gpio)]->name >> gpio_sub_n(gpio))); \ +} \ +EXPORT_SYMBOL(get_gpio_ ## name); + +GET_GPIO(dir) +GET_GPIO(inen) +GET_GPIO(polar) +GET_GPIO(edge) +GET_GPIO(both) +GET_GPIO(maska) +GET_GPIO(maskb) + + +#if defined(ANOMALY_05000311) +unsigned short get_gpio_data(unsigned short gpio) +{ + unsigned long flags; + unsigned short ret; + BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); + local_irq_save(flags); + ret = 0x01 & (gpio_bankb[gpio_bank(gpio)]->data >> gpio_sub_n(gpio)); + bfin_read_CHIPID(); + local_irq_restore(flags); + return ret; +} +EXPORT_SYMBOL(get_gpio_data); +#else +GET_GPIO(data) +#endif + +/*Get current PORT date (16-bit word)*/ + +#define GET_GPIO_P(name) \ +unsigned short get_gpiop_ ## name(unsigned short gpio) \ +{ \ + return (gpio_bankb[gpio_bank(gpio)]->name);\ +} \ +EXPORT_SYMBOL(get_gpiop_ ## name); + +GET_GPIO_P(dir) +GET_GPIO_P(inen) +GET_GPIO_P(polar) +GET_GPIO_P(edge) +GET_GPIO_P(both) +GET_GPIO_P(maska) +GET_GPIO_P(maskb) + +#if defined(ANOMALY_05000311) +unsigned short get_gpiop_data(unsigned short gpio) +{ + unsigned long flags; + unsigned short ret; + local_irq_save(flags); + ret = gpio_bankb[gpio_bank(gpio)]->data; + bfin_read_CHIPID(); + local_irq_restore(flags); + return ret; +} +EXPORT_SYMBOL(get_gpiop_data); +#else +GET_GPIO_P(data) +#endif + +#ifdef CONFIG_PM +/*********************************************************** +* +* FUNCTIONS: Blackfin PM Setup API +* +* INPUTS/OUTPUTS: +* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS +* type - +* PM_WAKE_RISING +* PM_WAKE_FALLING +* PM_WAKE_HIGH +* PM_WAKE_LOW +* PM_WAKE_BOTH_EDGES +* +* DESCRIPTION: Blackfin PM Driver API +* +* CAUTION: +************************************************************* +* MODIFICATION HISTORY : +**************************************************************/ +int gpio_pm_wakeup_request(unsigned short gpio, unsigned char type) +{ + unsigned long flags; + + if ((check_gpio(gpio) < 0) || !type) + return -EINVAL; + + local_irq_save(flags); + + wakeup_map[gpio_bank(gpio)] |= gpio_bit(gpio); + wakeup_flags_map[gpio] = type; + local_irq_restore(flags); + + return 0; +} +EXPORT_SYMBOL(gpio_pm_wakeup_request); + +void gpio_pm_wakeup_free(unsigned short gpio) +{ + unsigned long flags; + + if (check_gpio(gpio) < 0) + return; + + local_irq_save(flags); + + wakeup_map[gpio_bank(gpio)] &= ~gpio_bit(gpio); + + local_irq_restore(flags); +} +EXPORT_SYMBOL(gpio_pm_wakeup_free); + +static int bfin_gpio_wakeup_type(unsigned short gpio, unsigned char type) +{ + port_setup(gpio, GPIO_USAGE); + set_gpio_dir(gpio, 0); + set_gpio_inen(gpio, 1); + + if (type & (PM_WAKE_RISING | PM_WAKE_FALLING)) + set_gpio_edge(gpio, 1); + else + set_gpio_edge(gpio, 0); + + if ((type & (PM_WAKE_BOTH_EDGES)) == (PM_WAKE_BOTH_EDGES)) + set_gpio_both(gpio, 1); + else + set_gpio_both(gpio, 0); + + if ((type & (PM_WAKE_FALLING | PM_WAKE_LOW))) + set_gpio_polar(gpio, 1); + else + set_gpio_polar(gpio, 0); + + SSYNC(); + + return 0; +} + +u32 gpio_pm_setup(void) +{ + u32 sic_iwr = 0; + u16 bank, mask, i, gpio; + + for (i = 0; i < MAX_BLACKFIN_GPIOS; i+=GPIO_BANKSIZE) { + mask = wakeup_map[gpio_bank(i)]; + bank = gpio_bank(i); + + gpio_bank_saved[bank].maskb = gpio_bankb[bank]->maskb; + gpio_bankb[bank]->maskb = 0; + + if (mask) { +#ifdef BF537_FAMILY + gpio_bank_saved[bank].fer = *port_fer[bank]; +#endif + gpio_bank_saved[bank].inen = gpio_bankb[bank]->inen; + gpio_bank_saved[bank].polar = gpio_bankb[bank]->polar; + gpio_bank_saved[bank].dir = gpio_bankb[bank]->dir; + gpio_bank_saved[bank].edge = gpio_bankb[bank]->edge; + gpio_bank_saved[bank].both = gpio_bankb[bank]->both; + + gpio = i; + + while (mask) { + if (mask & 1) { + bfin_gpio_wakeup_type(gpio, wakeup_flags_map[gpio]); + set_gpio_data(gpio, 0); /*Clear*/ + } + gpio++; + mask >>= 1; + } + + sic_iwr |= 1 << (sic_iwr_irqs[bank] - (IRQ_CORETMR + 1)); + gpio_bankb[bank]->maskb_set = wakeup_map[gpio_bank(i)]; + } + } + + if (sic_iwr) + return sic_iwr; + else + return IWR_ENABLE_ALL; +} + + +void gpio_pm_restore(void) +{ + u16 bank, mask, i; + + for (i = 0; i < MAX_BLACKFIN_GPIOS; i+=GPIO_BANKSIZE) { + mask = wakeup_map[gpio_bank(i)]; + bank = gpio_bank(i); + + if (mask) { +#ifdef BF537_FAMILY + *port_fer[bank] = gpio_bank_saved[bank].fer; +#endif + gpio_bankb[bank]->inen = gpio_bank_saved[bank].inen; + gpio_bankb[bank]->dir = gpio_bank_saved[bank].dir; + gpio_bankb[bank]->polar = gpio_bank_saved[bank].polar; + gpio_bankb[bank]->edge = gpio_bank_saved[bank].edge; + gpio_bankb[bank]->both = gpio_bank_saved[bank].both; + } + + gpio_bankb[bank]->maskb = gpio_bank_saved[bank].maskb; + } +} + +#endif + +/*********************************************************** +* +* FUNCTIONS: Blackfin GPIO Driver +* +* INPUTS/OUTPUTS: +* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS +* +* +* DESCRIPTION: Blackfin GPIO Driver API +* +* CAUTION: +************************************************************* +* MODIFICATION HISTORY : +**************************************************************/ + +int gpio_request(unsigned short gpio, const char *label) +{ + unsigned long flags; + + if (check_gpio(gpio) < 0) + return -EINVAL; + + local_irq_save(flags); + + if (unlikely(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))) { + printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved!\n", gpio); + dump_stack(); + local_irq_restore(flags); + return -EBUSY; + } + reserved_map[gpio_bank(gpio)] |= gpio_bit(gpio); + + local_irq_restore(flags); + + port_setup(gpio, GPIO_USAGE); + + return 0; +} +EXPORT_SYMBOL(gpio_request); + + +void gpio_free(unsigned short gpio) +{ + unsigned long flags; + + if (check_gpio(gpio) < 0) + return; + + local_irq_save(flags); + + if (unlikely(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)))) { + printk(KERN_ERR "bfin-gpio: GPIO %d wasn't reserved!\n", gpio); + dump_stack(); + local_irq_restore(flags); + return; + } + + default_gpio(gpio); + + reserved_map[gpio_bank(gpio)] &= ~gpio_bit(gpio); + + local_irq_restore(flags); +} +EXPORT_SYMBOL(gpio_free); + + +void gpio_direction_input(unsigned short gpio) +{ + unsigned long flags; + + BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); + + local_irq_save(flags); + gpio_bankb[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio); + gpio_bankb[gpio_bank(gpio)]->inen |= gpio_bit(gpio); + local_irq_restore(flags); +} +EXPORT_SYMBOL(gpio_direction_input); + +void gpio_direction_output(unsigned short gpio) +{ + unsigned long flags; + + BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); + + local_irq_save(flags); + gpio_bankb[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio); + gpio_bankb[gpio_bank(gpio)]->dir |= gpio_bit(gpio); + local_irq_restore(flags); +} +EXPORT_SYMBOL(gpio_direction_output); diff --git a/arch/blackfin/kernel/bfin_ksyms.c b/arch/blackfin/kernel/bfin_ksyms.c new file mode 100644 index 0000000..f64ecb6 --- /dev/null +++ b/arch/blackfin/kernel/bfin_ksyms.c @@ -0,0 +1,119 @@ +/* + * File: arch/blackfin/kernel/bfin_ksyms.c + * Based on: none - original work + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <asm/irq.h> +#include <asm/checksum.h> +#include <asm/cacheflush.h> +#include <asm/uaccess.h> + +/* platform dependent support */ + +EXPORT_SYMBOL(__ioremap); +EXPORT_SYMBOL(strcmp); +EXPORT_SYMBOL(strncmp); +EXPORT_SYMBOL(dump_thread); + +EXPORT_SYMBOL(ip_fast_csum); + +EXPORT_SYMBOL(kernel_thread); + +EXPORT_SYMBOL(__up); +EXPORT_SYMBOL(__down); +EXPORT_SYMBOL(__down_trylock); +EXPORT_SYMBOL(__down_interruptible); + +EXPORT_SYMBOL(is_in_rom); + +/* Networking helper routines. */ +EXPORT_SYMBOL(csum_partial_copy); + +/* The following are special because they're not called + * explicitly (the C compiler generates them). Fortunately, + * their interface isn't gonna change any time soon now, so + * it's OK to leave it out of version control. + */ +EXPORT_SYMBOL(memcpy); +EXPORT_SYMBOL(memset); +EXPORT_SYMBOL(memcmp); +EXPORT_SYMBOL(memmove); +EXPORT_SYMBOL(memchr); +EXPORT_SYMBOL(get_wchan); + +/* + * libgcc functions - functions that are used internally by the + * compiler... (prototypes are not correct though, but that + * doesn't really matter since they're not versioned). + */ +extern void __ashldi3(void); +extern void __ashrdi3(void); +extern void __smulsi3_highpart(void); +extern void __umulsi3_highpart(void); +extern void __divsi3(void); +extern void __lshrdi3(void); +extern void __modsi3(void); +extern void __muldi3(void); +extern void __udivsi3(void); +extern void __umodsi3(void); + +/* gcc lib functions */ +EXPORT_SYMBOL(__ashldi3); +EXPORT_SYMBOL(__ashrdi3); +EXPORT_SYMBOL(__umulsi3_highpart); +EXPORT_SYMBOL(__smulsi3_highpart); +EXPORT_SYMBOL(__divsi3); +EXPORT_SYMBOL(__lshrdi3); +EXPORT_SYMBOL(__modsi3); +EXPORT_SYMBOL(__muldi3); +EXPORT_SYMBOL(__udivsi3); +EXPORT_SYMBOL(__umodsi3); + +EXPORT_SYMBOL(outsb); +EXPORT_SYMBOL(insb); +EXPORT_SYMBOL(outsw); +EXPORT_SYMBOL(insw); +EXPORT_SYMBOL(outsl); +EXPORT_SYMBOL(insl); +EXPORT_SYMBOL(irq_flags); +EXPORT_SYMBOL(iounmap); +EXPORT_SYMBOL(blackfin_dcache_invalidate_range); +EXPORT_SYMBOL(blackfin_icache_dcache_flush_range); +EXPORT_SYMBOL(blackfin_icache_flush_range); +EXPORT_SYMBOL(blackfin_dcache_flush_range); +EXPORT_SYMBOL(blackfin_dflush_page); + +EXPORT_SYMBOL(csum_partial); +EXPORT_SYMBOL(__init_begin); +EXPORT_SYMBOL(__init_end); +EXPORT_SYMBOL(_ebss_l1); +EXPORT_SYMBOL(_stext_l1); +EXPORT_SYMBOL(_etext_l1); +EXPORT_SYMBOL(_sdata_l1); +EXPORT_SYMBOL(_ebss_b_l1); +EXPORT_SYMBOL(_sdata_b_l1); diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c new file mode 100644 index 0000000..539eb24 --- /dev/null +++ b/arch/blackfin/kernel/dma-mapping.c @@ -0,0 +1,183 @@ +/* + * File: arch/blackfin/kernel/dma-mapping.c + * Based on: + * Author: + * + * Created: + * Description: Dynamic DMA mapping support. + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/types.h> +#include <linux/mm.h> +#include <linux/string.h> +#include <linux/bootmem.h> +#include <linux/spinlock.h> +#include <linux/device.h> +#include <linux/dma-mapping.h> +#include <asm/cacheflush.h> +#include <asm/io.h> +#include <asm/bfin-global.h> + +static spinlock_t dma_page_lock; +static unsigned int *dma_page; +static unsigned int dma_pages; +static unsigned long dma_base; +static unsigned long dma_size; +static unsigned int dma_initialized; + +void dma_alloc_init(unsigned long start, unsigned long end) +{ + spin_lock_init(&dma_page_lock); + dma_initialized = 0; + + dma_page = (unsigned int *)__get_free_page(GFP_KERNEL); + memset(dma_page, 0, PAGE_SIZE); + dma_base = PAGE_ALIGN(start); + dma_size = PAGE_ALIGN(end) - PAGE_ALIGN(start); + dma_pages = dma_size >> PAGE_SHIFT; + memset((void *)dma_base, 0, DMA_UNCACHED_REGION); + dma_initialized = 1; + + printk(KERN_INFO "%s: dma_page @ 0x%p - %d pages at 0x%08lx\n", __FUNCTION__, + dma_page, dma_pages, dma_base); +} + +static inline unsigned int get_pages(size_t size) +{ + return ((size - 1) >> PAGE_SHIFT) + 1; +} + +static unsigned long __alloc_dma_pages(unsigned int pages) +{ + unsigned long ret = 0, flags; + int i, count = 0; + + if (dma_initialized == 0) + dma_alloc_init(_ramend - DMA_UNCACHED_REGION, _ramend); + + spin_lock_irqsave(&dma_page_lock, flags); + + for (i = 0; i < dma_pages;) { + if (dma_page[i++] == 0) { + if (++count == pages) { + while (count--) + dma_page[--i] = 1; + ret = dma_base + (i << PAGE_SHIFT); + break; + } + } else + count = 0; + } + spin_unlock_irqrestore(&dma_page_lock, flags); + return ret; +} + +static void __free_dma_pages(unsigned long addr, unsigned int pages) +{ + unsigned long page = (addr - dma_base) >> PAGE_SHIFT; + unsigned long flags; + int i; + + if ((page + pages) > dma_pages) { + printk(KERN_ERR "%s: freeing outside range.\n", __FUNCTION__); + BUG(); + } + + spin_lock_irqsave(&dma_page_lock, flags); + for (i = page; i < page + pages; i++) { + dma_page[i] = 0; + } + spin_unlock_irqrestore(&dma_page_lock, flags); +} + +void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t * dma_handle, gfp_t gfp) +{ + void *ret; + + ret = (void *)__alloc_dma_pages(get_pages(size)); + + if (ret) { + memset(ret, 0, size); + *dma_handle = virt_to_phys(ret); + } + + return ret; +} +EXPORT_SYMBOL(dma_alloc_coherent); + +void +dma_free_coherent(struct device *dev, size_t size, void *vaddr, + dma_addr_t dma_handle) +{ + __free_dma_pages((unsigned long)vaddr, get_pages(size)); +} +EXPORT_SYMBOL(dma_free_coherent); + +/* + * Dummy functions defined for some existing drivers + */ + +dma_addr_t +dma_map_single(struct device *dev, void *ptr, size_t size, + enum dma_data_direction direction) +{ + BUG_ON(direction == DMA_NONE); + + invalidate_dcache_range((unsigned long)ptr, + (unsigned long)ptr + size); + + return (dma_addr_t) ptr; +} +EXPORT_SYMBOL(dma_map_single); + +int +dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction direction) +{ + int i; + + BUG_ON(direction == DMA_NONE); + + for (i = 0; i < nents; i++) + invalidate_dcache_range(sg_dma_address(&sg[i]), + sg_dma_address(&sg[i]) + + sg_dma_len(&sg[i])); + + return nents; +} +EXPORT_SYMBOL(dma_map_sg); + +void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, + enum dma_data_direction direction) +{ + BUG_ON(direction == DMA_NONE); +} +EXPORT_SYMBOL(dma_unmap_single); + +void dma_unmap_sg(struct device *dev, struct scatterlist *sg, + int nhwentries, enum dma_data_direction direction) +{ + BUG_ON(direction == DMA_NONE); +} +EXPORT_SYMBOL(dma_unmap_sg); diff --git a/arch/blackfin/kernel/dualcore_test.c b/arch/blackfin/kernel/dualcore_test.c new file mode 100644 index 0000000..8b89c99 --- /dev/null +++ b/arch/blackfin/kernel/dualcore_test.c @@ -0,0 +1,49 @@ +/* + * File: arch/blackfin/kernel/dualcore_test.c + * Based on: + * Author: + * + * Created: + * Description: Small test code for CoreB on a BF561 + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/init.h> +#include <linux/module.h> + +static int *testarg = (int*)0xfeb00000; + +static int test_init(void) +{ + *testarg = 1; + printk("Dual core test module inserted: set testarg = [%d]\n @ [%p]\n", + *testarg, testarg); + return 0; +} + +static void test_exit(void) +{ + printk("Dual core test module removed: testarg = [%d]\n", *testarg); +} + +module_init(test_init); +module_exit(test_exit); diff --git a/arch/blackfin/kernel/entry.S b/arch/blackfin/kernel/entry.S new file mode 100644 index 0000000..5880b27 --- /dev/null +++ b/arch/blackfin/kernel/entry.S @@ -0,0 +1,94 @@ +/* + * File: arch/blackfin/kernel/entry.S + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> +#include <asm/thread_info.h> +#include <asm/errno.h> +#include <asm/asm-offsets.h> + +#include <asm/mach-common/context.S> + +#ifdef CONFIG_EXCPT_IRQ_SYSC_L1 +.section .l1.text +#else +.text +#endif + +ENTRY(_ret_from_fork) + SP += -12; + call _schedule_tail; + SP += 12; + r0 = [sp + PT_IPEND]; + cc = bittst(r0,1); + if cc jump .Lin_kernel; + RESTORE_CONTEXT + rti; +.Lin_kernel: + bitclr(r0,1); + [sp + PT_IPEND] = r0; + /* do a 'fake' RTI by jumping to [RETI] + * to avoid clearing supervisor mode in child + */ + RESTORE_ALL_SYS + p0 = reti; + jump (p0); + +ENTRY(_sys_fork) + r0 = -EINVAL; + rts; + +ENTRY(_sys_vfork) + r0 = sp; + r0 += 24; + [--sp] = rets; + SP += -12; + call _bfin_vfork; + SP += 12; + rets = [sp++]; + rts; + +ENTRY(_sys_clone) + r0 = sp; + r0 += 24; + [--sp] = rets; + SP += -12; + call _bfin_clone; + SP += 12; + rets = [sp++]; + rts; + +ENTRY(_sys_rt_sigreturn) + r0 = sp; + r0 += 24; + [--sp] = rets; + SP += -12; + call _do_rt_sigreturn; + SP += 12; + rets = [sp++]; + rts; diff --git a/arch/blackfin/kernel/flat.c b/arch/blackfin/kernel/flat.c new file mode 100644 index 0000000..a92587b --- /dev/null +++ b/arch/blackfin/kernel/flat.c @@ -0,0 +1,101 @@ +/* + * arch/blackfin/kernel/flat.c + * + * Copyright (C) 2007 Analog Devices, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/flat.h> + +#define FLAT_BFIN_RELOC_TYPE_16_BIT 0 +#define FLAT_BFIN_RELOC_TYPE_16H_BIT 1 +#define FLAT_BFIN_RELOC_TYPE_32_BIT 2 + +unsigned long bfin_get_addr_from_rp(unsigned long *ptr, + unsigned long relval, + unsigned long flags, + unsigned long *persistent) +{ + unsigned short *usptr = (unsigned short *)ptr; + int type = (relval >> 26) & 7; + unsigned long val; + + switch (type) { + case FLAT_BFIN_RELOC_TYPE_16_BIT: + case FLAT_BFIN_RELOC_TYPE_16H_BIT: + usptr = (unsigned short *)ptr; + pr_debug("*usptr = %x", get_unaligned(usptr)); + val = get_unaligned(usptr); + val += *persistent; + break; + + case FLAT_BFIN_RELOC_TYPE_32_BIT: + pr_debug("*ptr = %lx", get_unaligned(ptr)); + val = get_unaligned(ptr); + break; + + default: + pr_debug("BINFMT_FLAT: Unknown relocation type %x\n", + type); + + return 0; + } + + /* + * Stack-relative relocs contain the offset into the stack, we + * have to add the stack's start address here and return 1 from + * flat_addr_absolute to prevent the normal address calculations + */ + if (relval & (1 << 29)) + return val + current->mm->context.end_brk; + + if ((flags & FLAT_FLAG_GOTPIC) == 0) + val = htonl(val); + return val; +} +EXPORT_SYMBOL(bfin_get_addr_from_rp); + +/* + * Insert the address ADDR into the symbol reference at RP; + * RELVAL is the raw relocation-table entry from which RP is derived + */ +void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr, + unsigned long relval) +{ + unsigned short *usptr = (unsigned short *)ptr; + int type = (relval >> 26) & 7; + + switch (type) { + case FLAT_BFIN_RELOC_TYPE_16_BIT: + put_unaligned(addr, usptr); + pr_debug("new value %x at %p", get_unaligned(usptr), + usptr); + break; + + case FLAT_BFIN_RELOC_TYPE_16H_BIT: + put_unaligned(addr >> 16, usptr); + pr_debug("new value %x", get_unaligned(usptr)); + break; + + case FLAT_BFIN_RELOC_TYPE_32_BIT: + put_unaligned(addr, ptr); + pr_debug("new ptr =%lx", get_unaligned(ptr)); + break; + } +} +EXPORT_SYMBOL(bfin_put_addr_at_rp); diff --git a/arch/blackfin/kernel/init_task.c b/arch/blackfin/kernel/init_task.c new file mode 100644 index 0000000..b45188f --- /dev/null +++ b/arch/blackfin/kernel/init_task.c @@ -0,0 +1,60 @@ +/* + * File: arch/blackfin/kernel/init_task.c + * Based on: + * Author: + * + * Created: + * Description: This file contains the simple DMA Implementation for Blackfin + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/init_task.h> +#include <linux/mqueue.h> + +static struct fs_struct init_fs = INIT_FS; +static struct files_struct init_files = INIT_FILES; +static struct signal_struct init_signals = INIT_SIGNALS(init_signals); +static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); + +struct mm_struct init_mm = INIT_MM(init_mm); +EXPORT_SYMBOL(init_mm); + +/* + * Initial task structure. + * + * All other task structs will be allocated on slabs in fork.c + */ +struct task_struct init_task = INIT_TASK(init_task); +EXPORT_SYMBOL(init_task); + +/* + * Initial thread structure. + * + * We need to make sure that this is 8192-byte aligned due to the + * way process stacks are handled. This is done by having a special + * "init_task" linker map entry. + */ +union thread_union init_thread_union + __attribute__ ((__section__(".data.init_task"))) = { +INIT_THREAD_INFO(init_task)}; diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c new file mode 100644 index 0000000..df5bf02 --- /dev/null +++ b/arch/blackfin/kernel/irqchip.c @@ -0,0 +1,147 @@ +/* + * File: arch/blackfin/kernel/irqchip.c + * Based on: + * Author: + * + * Created: + * Description: This file contains the simple DMA Implementation for Blackfin + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/kernel_stat.h> +#include <linux/module.h> +#include <linux/random.h> +#include <linux/seq_file.h> +#include <linux/kallsyms.h> +#include <linux/interrupt.h> +#include <linux/irq.h> + +static unsigned long irq_err_count; +static spinlock_t irq_controller_lock; + +/* + * Dummy mask/unmask handler + */ +void dummy_mask_unmask_irq(unsigned int irq) +{ +} + +void ack_bad_irq(unsigned int irq) +{ + irq_err_count += 1; + printk(KERN_ERR "IRQ: spurious interrupt %d\n", irq); +} +EXPORT_SYMBOL(ack_bad_irq); + +static struct irq_chip bad_chip = { + .ack = dummy_mask_unmask_irq, + .mask = dummy_mask_unmask_irq, + .unmask = dummy_mask_unmask_irq, +}; + +static struct irq_desc bad_irq_desc = { + .chip = &bad_chip, + .handle_irq = handle_bad_irq, + .depth = 1, +}; + +int show_interrupts(struct seq_file *p, void *v) +{ + int i = *(loff_t *) v; + struct irqaction *action; + unsigned long flags; + + if (i < NR_IRQS) { + spin_lock_irqsave(&irq_desc[i].lock, flags); + action = irq_desc[i].action; + if (!action) + goto unlock; + + seq_printf(p, "%3d: %10u ", i, kstat_irqs(i)); + seq_printf(p, " %s", action->name); + for (action = action->next; action; action = action->next) + seq_printf(p, ", %s", action->name); + + seq_putc(p, '\n'); + unlock: + spin_unlock_irqrestore(&irq_desc[i].lock, flags); + } else if (i == NR_IRQS) { + seq_printf(p, "Err: %10lu\n", irq_err_count); + } + return 0; +} + +/* + * do_IRQ handles all hardware IRQ's. Decoded IRQs should not + * come via this function. Instead, they should provide their + * own 'handler' + */ + +#ifdef CONFIG_DO_IRQ_L1 +asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs)__attribute__((l1_text)); +#endif + +asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs) +{ + struct pt_regs *old_regs; + struct irq_desc *desc = irq_desc + irq; + unsigned short pending, other_ints; + + old_regs = set_irq_regs(regs); + + /* + * Some hardware gives randomly wrong interrupts. Rather + * than crashing, do something sensible. + */ + if (irq >= NR_IRQS) + desc = &bad_irq_desc; + + irq_enter(); + + generic_handle_irq(irq); + + /* If we're the only interrupt running (ignoring IRQ15 which is for + syscalls), lower our priority to IRQ14 so that softirqs run at + that level. If there's another, lower-level interrupt, irq_exit + will defer softirqs to that. */ + CSYNC(); + pending = bfin_read_IPEND() & ~0x8000; + other_ints = pending & (pending - 1); + if (other_ints == 0) + lower_to_irq14(); + irq_exit(); + + set_irq_regs(old_regs); +} + +void __init init_IRQ(void) +{ + struct irq_desc *desc; + int irq; + + spin_lock_init(&irq_controller_lock); + for (irq = 0, desc = irq_desc; irq < NR_IRQS; irq++, desc++) { + *desc = bad_irq_desc; + } + + init_arch_irq(); +} diff --git a/arch/blackfin/kernel/module.c b/arch/blackfin/kernel/module.c new file mode 100644 index 0000000..372f756 --- /dev/null +++ b/arch/blackfin/kernel/module.c @@ -0,0 +1,429 @@ +/* + * File: arch/blackfin/kernel/module.c + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + + +#include <linux/moduleloader.h> +#include <linux/elf.h> +#include <linux/vmalloc.h> +#include <linux/fs.h> +#include <linux/string.h> +#include <linux/kernel.h> +#include <asm/dma.h> +#include <asm/cacheflush.h> + +/* + * handle arithmetic relocations. + * See binutils/bfd/elf32-bfin.c for more details + */ +#define RELOC_STACK_SIZE 100 +static uint32_t reloc_stack[RELOC_STACK_SIZE]; +static unsigned int reloc_stack_tos; + +#define is_reloc_stack_empty() ((reloc_stack_tos > 0)?0:1) + +static void reloc_stack_push(uint32_t value) +{ + reloc_stack[reloc_stack_tos++] = value; +} + +static uint32_t reloc_stack_pop(void) +{ + return reloc_stack[--reloc_stack_tos]; +} + +static uint32_t reloc_stack_operate(unsigned int oper, struct module *mod) +{ + uint32_t value; + + switch (oper) { + case R_add: + value = reloc_stack[reloc_stack_tos - 2] + + reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos -= 2; + break; + case R_sub: + value = reloc_stack[reloc_stack_tos - 2] - + reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos -= 2; + break; + case R_mult: + value = reloc_stack[reloc_stack_tos - 2] * + reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos -= 2; + break; + case R_div: + value = reloc_stack[reloc_stack_tos - 2] / + reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos -= 2; + break; + case R_mod: + value = reloc_stack[reloc_stack_tos - 2] % + reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos -= 2; + break; + case R_lshift: + value = reloc_stack[reloc_stack_tos - 2] << + reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos -= 2; + break; + case R_rshift: + value = reloc_stack[reloc_stack_tos - 2] >> + reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos -= 2; + break; + case R_and: + value = reloc_stack[reloc_stack_tos - 2] & + reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos -= 2; + break; + case R_or: + value = reloc_stack[reloc_stack_tos - 2] | + reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos -= 2; + break; + case R_xor: + value = reloc_stack[reloc_stack_tos - 2] ^ + reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos -= 2; + break; + case R_land: + value = reloc_stack[reloc_stack_tos - 2] && + reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos -= 2; + break; + case R_lor: + value = reloc_stack[reloc_stack_tos - 2] || + reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos -= 2; + break; + case R_neg: + value = -reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos--; + break; + case R_comp: + value = ~reloc_stack[reloc_stack_tos - 1]; + reloc_stack_tos -= 1; + break; + default: + printk(KERN_WARNING "module %s: unhandled reloction\n", + mod->name); + return 0; + } + + /* now push the new value back on stack */ + reloc_stack_push(value); + + return value; +} + +void *module_alloc(unsigned long size) +{ + if (size == 0) + return NULL; + return vmalloc(size); +} + +/* Free memory returned from module_alloc */ +void module_free(struct module *mod, void *module_region) +{ + vfree(module_region); +} + +/* Transfer the section to the L1 memory */ +int +module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs, + char *secstrings, struct module *mod) +{ + Elf_Shdr *s, *sechdrs_end = sechdrs + hdr->e_shnum; + void *dest = NULL; + + for (s = sechdrs; s < sechdrs_end; ++s) { + if ((strcmp(".l1.text", secstrings + s->sh_name) == 0) || + ((strcmp(".text", secstrings + s->sh_name)==0) && + (hdr->e_flags & FLG_CODE_IN_L1) && (s->sh_size > 0))) { + mod->arch.text_l1 = s; + dest = l1_inst_sram_alloc(s->sh_size); + if (dest == NULL) { + printk(KERN_ERR + "module %s: L1 instruction memory allocation failed\n", + mod->name); + return -1; + } + dma_memcpy(dest, (void *)s->sh_addr, s->sh_size); + s->sh_flags &= ~SHF_ALLOC; + s->sh_addr = (unsigned long)dest; + } + if ((strcmp(".l1.data", secstrings + s->sh_name) == 0)|| + ((strcmp(".data", secstrings + s->sh_name)==0) && + (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) { + mod->arch.data_a_l1 = s; + dest = l1_data_sram_alloc(s->sh_size); + if (dest == NULL) { + printk(KERN_ERR + "module %s: L1 data memory allocation failed\n", + mod->name); + return -1; + } + memcpy(dest, (void *)s->sh_addr, s->sh_size); + s->sh_flags &= ~SHF_ALLOC; + s->sh_addr = (unsigned long)dest; + } + if (strcmp(".l1.bss", secstrings + s->sh_name) == 0 || + ((strcmp(".bss", secstrings + s->sh_name)==0) && + (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) { + mod->arch.bss_a_l1 = s; + dest = l1_data_sram_alloc(s->sh_size); + if (dest == NULL) { + printk(KERN_ERR + "module %s: L1 data memory allocation failed\n", + mod->name); + return -1; + } + memset(dest, 0, s->sh_size); + s->sh_flags &= ~SHF_ALLOC; + s->sh_addr = (unsigned long)dest; + } + if (strcmp(".l1.data.B", secstrings + s->sh_name) == 0) { + mod->arch.data_b_l1 = s; + dest = l1_data_B_sram_alloc(s->sh_size); + if (dest == NULL) { + printk(KERN_ERR + "module %s: L1 data memory allocation failed\n", + mod->name); + return -1; + } + memcpy(dest, (void *)s->sh_addr, s->sh_size); + s->sh_flags &= ~SHF_ALLOC; + s->sh_addr = (unsigned long)dest; + } + if (strcmp(".l1.bss.B", secstrings + s->sh_name) == 0) { + mod->arch.bss_b_l1 = s; + dest = l1_data_B_sram_alloc(s->sh_size); + if (dest == NULL) { + printk(KERN_ERR + "module %s: L1 data memory allocation failed\n", + mod->name); + return -1; + } + memset(dest, 0, s->sh_size); + s->sh_flags &= ~SHF_ALLOC; + s->sh_addr = (unsigned long)dest; + } + } + return 0; +} + +int +apply_relocate(Elf_Shdr * sechdrs, const char *strtab, + unsigned int symindex, unsigned int relsec, struct module *me) +{ + printk(KERN_ERR "module %s: .rel unsupported\n", me->name); + return -ENOEXEC; +} + +/*************************************************************************/ +/* FUNCTION : apply_relocate_add */ +/* ABSTRACT : Blackfin specific relocation handling for the loadable */ +/* modules. Modules are expected to be .o files. */ +/* Arithmetic relocations are handled. */ +/* We do not expect LSETUP to be split and hence is not */ +/* handled. */ +/* R_byte and R_byte2 are also not handled as the gas */ +/* does not generate it. */ +/*************************************************************************/ +int +apply_relocate_add(Elf_Shdr * sechdrs, const char *strtab, + unsigned int symindex, unsigned int relsec, + struct module *mod) +{ + unsigned int i; + unsigned short tmp; + Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr; + Elf32_Sym *sym; + uint32_t *location32; + uint16_t *location16; + uint32_t value; + + pr_debug("Applying relocate section %u to %u\n", relsec, + sechdrs[relsec].sh_info); + for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { + /* This is where to make the change */ + location16 = + (uint16_t *) (sechdrs[sechdrs[relsec].sh_info].sh_addr + + rel[i].r_offset); + location32 = (uint32_t *) location16; + /* This is the symbol it is referring to. Note that all + undefined symbols have been resolved. */ + sym = (Elf32_Sym *) sechdrs[symindex].sh_addr + + ELF32_R_SYM(rel[i].r_info); + if (is_reloc_stack_empty()) { + value = sym->st_value; + } else { + value = reloc_stack_pop(); + } + value += rel[i].r_addend; + pr_debug("location is %x, value is %x type is %d \n", + (unsigned int) location32, value, + ELF32_R_TYPE(rel[i].r_info)); + + switch (ELF32_R_TYPE(rel[i].r_info)) { + + case R_pcrel24: + case R_pcrel24_jump_l: + /* Add the value, subtract its postition */ + location16 = + (uint16_t *) (sechdrs[sechdrs[relsec].sh_info]. + sh_addr + rel[i].r_offset - 2); + location32 = (uint32_t *) location16; + value -= (uint32_t) location32; + value >>= 1; + pr_debug("value is %x, before %x-%x after %x-%x\n", value, + *location16, *(location16 + 1), + (*location16 & 0xff00) | (value >> 16 & 0x00ff), + value & 0xffff); + *location16 = + (*location16 & 0xff00) | (value >> 16 & 0x00ff); + *(location16 + 1) = value & 0xffff; + break; + case R_pcrel12_jump: + case R_pcrel12_jump_s: + value -= (uint32_t) location32; + value >>= 1; + *location16 = (value & 0xfff); + break; + case R_pcrel10: + value -= (uint32_t) location32; + value >>= 1; + *location16 = (value & 0x3ff); + break; + case R_luimm16: + pr_debug("before %x after %x\n", *location16, + (value & 0xffff)); + tmp = (value & 0xffff); + if((unsigned long)location16 >= L1_CODE_START) { + dma_memcpy(location16, &tmp, 2); + } else + *location16 = tmp; + break; + case R_huimm16: + pr_debug("before %x after %x\n", *location16, + ((value >> 16) & 0xffff)); + tmp = ((value >> 16) & 0xffff); + if((unsigned long)location16 >= L1_CODE_START) { + dma_memcpy(location16, &tmp, 2); + } else + *location16 = tmp; + break; + case R_rimm16: + *location16 = (value & 0xffff); + break; + case R_byte4_data: + pr_debug("before %x after %x\n", *location32, value); + *location32 = value; + break; + case R_push: + reloc_stack_push(value); + break; + case R_const: + reloc_stack_push(rel[i].r_addend); + break; + case R_add: + case R_sub: + case R_mult: + case R_div: + case R_mod: + case R_lshift: + case R_rshift: + case R_and: + case R_or: + case R_xor: + case R_land: + case R_lor: + case R_neg: + case R_comp: + reloc_stack_operate(ELF32_R_TYPE(rel[i].r_info), mod); + break; + default: + printk(KERN_ERR "module %s: Unknown relocation: %u\n", + mod->name, ELF32_R_TYPE(rel[i].r_info)); + return -ENOEXEC; + } + } + return 0; +} + +int +module_finalize(const Elf_Ehdr * hdr, + const Elf_Shdr * sechdrs, struct module *mod) +{ + unsigned int i, strindex = 0, symindex = 0; + char *secstrings; + + secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + + for (i = 1; i < hdr->e_shnum; i++) { + /* Internal symbols and strings. */ + if (sechdrs[i].sh_type == SHT_SYMTAB) { + symindex = i; + strindex = sechdrs[i].sh_link; + } + } + + for (i = 1; i < hdr->e_shnum; i++) { + const char *strtab = (char *)sechdrs[strindex].sh_addr; + unsigned int info = sechdrs[i].sh_info; + + /* Not a valid relocation section? */ + if (info >= hdr->e_shnum) + continue; + + if ((sechdrs[i].sh_type == SHT_RELA) && + ((strcmp(".rela.l1.text", secstrings + sechdrs[i].sh_name) == 0)|| + ((strcmp(".rela.text", secstrings + sechdrs[i].sh_name) == 0) && + (hdr->e_flags & FLG_CODE_IN_L1)))) { + apply_relocate_add((Elf_Shdr *) sechdrs, strtab, + symindex, i, mod); + } + } + return 0; +} + +void module_arch_cleanup(struct module *mod) +{ + if ((mod->arch.text_l1) && (mod->arch.text_l1->sh_addr)) + l1_inst_sram_free((void*)mod->arch.text_l1->sh_addr); + if ((mod->arch.data_a_l1) && (mod->arch.data_a_l1->sh_addr)) + l1_data_sram_free((void*)mod->arch.data_a_l1->sh_addr); + if ((mod->arch.bss_a_l1) && (mod->arch.bss_a_l1->sh_addr)) + l1_data_sram_free((void*)mod->arch.bss_a_l1->sh_addr); + if ((mod->arch.data_b_l1) && (mod->arch.data_b_l1->sh_addr)) + l1_data_B_sram_free((void*)mod->arch.data_b_l1->sh_addr); + if ((mod->arch.bss_b_l1) && (mod->arch.bss_b_l1->sh_addr)) + l1_data_B_sram_free((void*)mod->arch.bss_b_l1->sh_addr); +} diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c new file mode 100644 index 0000000..3eff743 --- /dev/null +++ b/arch/blackfin/kernel/process.c @@ -0,0 +1,394 @@ +/* + * File: arch/blackfin/kernel/process.c + * Based on: + * Author: + * + * Created: + * Description: Blackfin architecture-dependent process handling. + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/smp_lock.h> +#include <linux/unistd.h> +#include <linux/user.h> +#include <linux/a.out.h> + +#include <asm/blackfin.h> +#include <asm/uaccess.h> + +#define LED_ON 0 +#define LED_OFF 1 + +asmlinkage void ret_from_fork(void); + +/* Points to the SDRAM backup memory for the stack that is currently in + * L1 scratchpad memory. + */ +void *current_l1_stack_save; + +/* The number of tasks currently using a L1 stack area. The SRAM is + * allocated/deallocated whenever this changes from/to zero. + */ +int nr_l1stack_tasks; + +/* Start and length of the area in L1 scratchpad memory which we've allocated + * for process stacks. + */ +void *l1_stack_base; +unsigned long l1_stack_len; + +/* + * Powermanagement idle function, if any.. + */ +void (*pm_idle)(void) = NULL; +EXPORT_SYMBOL(pm_idle); + +void (*pm_power_off)(void) = NULL; +EXPORT_SYMBOL(pm_power_off); + +/* + * We are using a different LED from the one used to indicate timer interrupt. + */ +#if defined(CONFIG_BFIN_IDLE_LED) +static inline void leds_switch(int flag) +{ + unsigned short tmp = 0; + + tmp = bfin_read_CONFIG_BFIN_IDLE_LED_PORT(); + SSYNC(); + + if (flag == LED_ON) + tmp &= ~CONFIG_BFIN_IDLE_LED_PIN; /* light on */ + else + tmp |= CONFIG_BFIN_IDLE_LED_PIN; /* light off */ + + bfin_write_CONFIG_BFIN_IDLE_LED_PORT(tmp); + SSYNC(); + +} +#else +static inline void leds_switch(int flag) +{ +} +#endif + +/* + * The idle loop on BFIN + */ +#ifdef CONFIG_IDLE_L1 +void default_idle(void)__attribute__((l1_text)); +void cpu_idle(void)__attribute__((l1_text)); +#endif + +void default_idle(void) +{ + while (!need_resched()) { + leds_switch(LED_OFF); + local_irq_disable(); + if (likely(!need_resched())) + idle_with_irq_disabled(); + local_irq_enable(); + leds_switch(LED_ON); + } +} + +void (*idle)(void) = default_idle; + +/* + * The idle thread. There's no useful work to be + * done, so just try to conserve power and have a + * low exit latency (ie sit in a loop waiting for + * somebody to say that they'd like to reschedule) + */ +void cpu_idle(void) +{ + /* endless idle loop with no priority at all */ + while (1) { + idle(); + preempt_enable_no_resched(); + schedule(); + preempt_disable(); + } +} + +void machine_restart(char *__unused) +{ +#if defined(CONFIG_BLKFIN_CACHE) + bfin_write_IMEM_CONTROL(0x01); + SSYNC(); +#endif + bfin_reset(); + /* Dont do anything till the reset occurs */ + while (1) { + SSYNC(); + } +} + +void machine_halt(void) +{ + for (;;) + asm volatile ("idle"); +} + +void machine_power_off(void) +{ + for (;;) + asm volatile ("idle"); +} + +void show_regs(struct pt_regs *regs) +{ + printk(KERN_NOTICE "\n"); + printk(KERN_NOTICE + "PC: %08lu Status: %04lu SysStatus: %04lu RETS: %08lu\n", + regs->pc, regs->astat, regs->seqstat, regs->rets); + printk(KERN_NOTICE + "A0.x: %08lx A0.w: %08lx A1.x: %08lx A1.w: %08lx\n", + regs->a0x, regs->a0w, regs->a1x, regs->a1w); + printk(KERN_NOTICE "P0: %08lx P1: %08lx P2: %08lx P3: %08lx\n", + regs->p0, regs->p1, regs->p2, regs->p3); + printk(KERN_NOTICE "P4: %08lx P5: %08lx\n", regs->p4, regs->p5); + printk(KERN_NOTICE "R0: %08lx R1: %08lx R2: %08lx R3: %08lx\n", + regs->r0, regs->r1, regs->r2, regs->r3); + printk(KERN_NOTICE "R4: %08lx R5: %08lx R6: %08lx R7: %08lx\n", + regs->r4, regs->r5, regs->r6, regs->r7); + + if (!(regs->ipend)) + printk("USP: %08lx\n", rdusp()); +} + +/* Fill in the fpu structure for a core dump. */ + +int dump_fpu(struct pt_regs *regs, elf_fpregset_t * fpregs) +{ + return 1; +} + +/* + * This gets run with P1 containing the + * function to call, and R1 containing + * the "args". Note P0 is clobbered on the way here. + */ +void kernel_thread_helper(void); +__asm__(".section .text\n" + ".align 4\n" + "_kernel_thread_helper:\n\t" + "\tsp += -12;\n\t" + "\tr0 = r1;\n\t" "\tcall (p1);\n\t" "\tcall _do_exit;\n" ".previous"); + +/* + * Create a kernel thread. + */ +pid_t kernel_thread(int (*fn) (void *), void *arg, unsigned long flags) +{ + struct pt_regs regs; + + memset(®s, 0, sizeof(regs)); + + regs.r1 = (unsigned long)arg; + regs.p1 = (unsigned long)fn; + regs.pc = (unsigned long)kernel_thread_helper; + regs.orig_p0 = -1; + /* Set bit 2 to tell ret_from_fork we should be returning to kernel + mode. */ + regs.ipend = 0x8002; + __asm__ __volatile__("%0 = syscfg;":"=da"(regs.syscfg):); + return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, ®s, 0, NULL, + NULL); +} + +void flush_thread(void) +{ +} + +asmlinkage int bfin_vfork(struct pt_regs *regs) +{ + return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), regs, 0, NULL, + NULL); +} + +asmlinkage int bfin_clone(struct pt_regs *regs) +{ + unsigned long clone_flags; + unsigned long newsp; + + /* syscall2 puts clone_flags in r0 and usp in r1 */ + clone_flags = regs->r0; + newsp = regs->r1; + if (!newsp) + newsp = rdusp(); + else + newsp -= 12; + return do_fork(clone_flags, newsp, regs, 0, NULL, NULL); +} + +int +copy_thread(int nr, unsigned long clone_flags, + unsigned long usp, unsigned long topstk, + struct task_struct *p, struct pt_regs *regs) +{ + struct pt_regs *childregs; + + childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1; + *childregs = *regs; + childregs->r0 = 0; + + p->thread.usp = usp; + p->thread.ksp = (unsigned long)childregs; + p->thread.pc = (unsigned long)ret_from_fork; + + return 0; +} + +/* + * fill in the user structure for a core dump.. + */ +void dump_thread(struct pt_regs *regs, struct user *dump) +{ + dump->magic = CMAGIC; + dump->start_code = 0; + dump->start_stack = rdusp() & ~(PAGE_SIZE - 1); + dump->u_tsize = ((unsigned long)current->mm->end_code) >> PAGE_SHIFT; + dump->u_dsize = ((unsigned long)(current->mm->brk + + (PAGE_SIZE - 1))) >> PAGE_SHIFT; + dump->u_dsize -= dump->u_tsize; + dump->u_ssize = 0; + + if (dump->start_stack < TASK_SIZE) + dump->u_ssize = + ((unsigned long)(TASK_SIZE - + dump->start_stack)) >> PAGE_SHIFT; + + dump->u_ar0 = (struct user_regs_struct *)((int)&dump->regs - (int)dump); + + dump->regs.r0 = regs->r0; + dump->regs.r1 = regs->r1; + dump->regs.r2 = regs->r2; + dump->regs.r3 = regs->r3; + dump->regs.r4 = regs->r4; + dump->regs.r5 = regs->r5; + dump->regs.r6 = regs->r6; + dump->regs.r7 = regs->r7; + dump->regs.p0 = regs->p0; + dump->regs.p1 = regs->p1; + dump->regs.p2 = regs->p2; + dump->regs.p3 = regs->p3; + dump->regs.p4 = regs->p4; + dump->regs.p5 = regs->p5; + dump->regs.orig_p0 = regs->orig_p0; + dump->regs.a0w = regs->a0w; + dump->regs.a1w = regs->a1w; + dump->regs.a0x = regs->a0x; + dump->regs.a1x = regs->a1x; + dump->regs.rets = regs->rets; + dump->regs.astat = regs->astat; + dump->regs.pc = regs->pc; +} + +/* + * sys_execve() executes a new program. + */ + +asmlinkage int sys_execve(char *name, char **argv, char **envp) +{ + int error; + char *filename; + struct pt_regs *regs = (struct pt_regs *)((&name) + 6); + + lock_kernel(); + filename = getname(name); + error = PTR_ERR(filename); + if (IS_ERR(filename)) + goto out; + error = do_execve(filename, argv, envp, regs); + putname(filename); + out: + unlock_kernel(); + return error; +} + +unsigned long get_wchan(struct task_struct *p) +{ + unsigned long fp, pc; + unsigned long stack_page; + int count = 0; + if (!p || p == current || p->state == TASK_RUNNING) + return 0; + + stack_page = (unsigned long)p; + fp = p->thread.usp; + do { + if (fp < stack_page + sizeof(struct thread_info) || + fp >= 8184 + stack_page) + return 0; + pc = ((unsigned long *)fp)[1]; + if (!in_sched_functions(pc)) + return pc; + fp = *(unsigned long *)fp; + } + while (count++ < 16); + return 0; +} + +#if defined(CONFIG_ACCESS_CHECK) +int _access_ok(unsigned long addr, unsigned long size) +{ + + if (addr > (addr + size)) + return 0; + if (segment_eq(get_fs(),KERNEL_DS)) + return 1; +#ifdef CONFIG_MTD_UCLINUX + if (addr >= memory_start && (addr + size) <= memory_end) + return 1; + if (addr >= memory_mtd_end && (addr + size) <= physical_mem_end) + return 1; +#else + if (addr >= memory_start && (addr + size) <= physical_mem_end) + return 1; +#endif + if (addr >= (unsigned long)__init_begin && + addr + size <= (unsigned long)__init_end) + return 1; + if (addr >= L1_SCRATCH_START + && addr + size <= L1_SCRATCH_START + L1_SCRATCH_LENGTH) + return 1; +#if L1_CODE_LENGTH != 0 + if (addr >= L1_CODE_START + (_etext_l1 - _stext_l1) + && addr + size <= L1_CODE_START + L1_CODE_LENGTH) + return 1; +#endif +#if L1_DATA_A_LENGTH != 0 + if (addr >= L1_DATA_A_START + (_ebss_l1 - _sdata_l1) + && addr + size <= L1_DATA_A_START + L1_DATA_A_LENGTH) + return 1; +#endif +#if L1_DATA_B_LENGTH != 0 + if (addr >= L1_DATA_B_START + && addr + size <= L1_DATA_B_START + L1_DATA_B_LENGTH) + return 1; +#endif + return 0; +} +EXPORT_SYMBOL(_access_ok); +#endif /* CONFIG_ACCESS_CHECK */ diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c new file mode 100644 index 0000000..d7c8e51 --- /dev/null +++ b/arch/blackfin/kernel/ptrace.c @@ -0,0 +1,430 @@ +/* + * File: arch/blackfin/kernel/ptrace.c + * Based on: Taken from linux/kernel/ptrace.c + * Author: linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds + * + * Created: 1/23/92 + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/smp.h> +#include <linux/smp_lock.h> +#include <linux/errno.h> +#include <linux/ptrace.h> +#include <linux/user.h> +#include <linux/signal.h> + +#include <asm/uaccess.h> +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/system.h> +#include <asm/processor.h> +#include <asm/asm-offsets.h> +#include <asm/dma.h> + +#define MAX_SHARED_LIBS 3 +#define TEXT_OFFSET 0 +/* + * does not yet catch signals sent when the child dies. + * in exit.c or in signal.c. + */ + +/* determines which bits in the SYSCFG reg the user has access to. */ +/* 1 = access 0 = no access */ +#define SYSCFG_MASK 0x0007 /* SYSCFG reg */ +/* sets the trace bits. */ +#define TRACE_BITS 0x0001 + +/* Find the stack offset for a register, relative to thread.esp0. */ +#define PT_REG(reg) ((long)&((struct pt_regs *)0)->reg) + +/* + * Get the address of the live pt_regs for the specified task. + * These are saved onto the top kernel stack when the process + * is not running. + * + * Note: if a user thread is execve'd from kernel space, the + * kernel stack will not be empty on entry to the kernel, so + * ptracing these tasks will fail. + */ +static inline struct pt_regs *get_user_regs(struct task_struct *task) +{ + return (struct pt_regs *) + ((unsigned long)task->thread_info + + (THREAD_SIZE - sizeof(struct pt_regs))); +} + +/* + * Get all user integer registers. + */ +static inline int ptrace_getregs(struct task_struct *tsk, void __user * uregs) +{ + struct pt_regs *regs = get_user_regs(tsk); + return copy_to_user(uregs, regs, sizeof(struct pt_regs)) ? -EFAULT : 0; +} + +/* Mapping from PT_xxx to the stack offset at which the register is + * saved. Notice that usp has no stack-slot and needs to be treated + * specially (see get_reg/put_reg below). + */ + +/* + * Get contents of register REGNO in task TASK. + */ +static inline long get_reg(struct task_struct *task, int regno) +{ + unsigned char *reg_ptr; + + struct pt_regs *regs = + (struct pt_regs *)((unsigned long)task->thread_info + + (THREAD_SIZE - sizeof(struct pt_regs))); + reg_ptr = (char *)regs; + + switch (regno) { + case PT_USP: + return task->thread.usp; + default: + if (regno <= 216) + return *(long *)(reg_ptr + regno); + } + /* slight mystery ... never seems to come here but kernel misbehaves without this code! */ + + printk(KERN_WARNING "Request to get for unknown register %d\n", regno); + return 0; +} + +/* + * Write contents of register REGNO in task TASK. + */ +static inline int +put_reg(struct task_struct *task, int regno, unsigned long data) +{ + char * reg_ptr; + + struct pt_regs *regs = + (struct pt_regs *)((unsigned long)task->thread_info + + (THREAD_SIZE - sizeof(struct pt_regs))); + reg_ptr = (char *)regs; + + switch (regno) { + case PT_PC: + /*********************************************************************/ + /* At this point the kernel is most likely in exception. */ + /* The RETX register will be used to populate the pc of the process. */ + /*********************************************************************/ + regs->retx = data; + regs->pc = data; + break; + case PT_RETX: + break; /* regs->retx = data; break; */ + case PT_USP: + regs->usp = data; + task->thread.usp = data; + break; + default: + if (regno <= 216) + *(long *)(reg_ptr + regno) = data; + } + return 0; +} + +/* + * check that an address falls within the bounds of the target process's memory mappings + */ +static inline int is_user_addr_valid(struct task_struct *child, + unsigned long start, unsigned long len) +{ + struct vm_list_struct *vml; + struct sram_list_struct *sraml; + + for (vml = child->mm->context.vmlist; vml; vml = vml->next) + if (start >= vml->vma->vm_start && start + len <= vml->vma->vm_end) + return 0; + + for (sraml = child->mm->context.sram_list; sraml; sraml = sraml->next) + if (start >= (unsigned long)sraml->addr + && start + len <= (unsigned long)sraml->addr + sraml->length) + return 0; + + return -EIO; +} + +/* + * Called by kernel/ptrace.c when detaching.. + * + * Make sure the single step bit is not set. + */ +void ptrace_disable(struct task_struct *child) +{ + unsigned long tmp; + /* make sure the single step bit is not set. */ + tmp = get_reg(child, PT_SR) & ~(TRACE_BITS << 16); + put_reg(child, PT_SR, tmp); +} + +long arch_ptrace(struct task_struct *child, long request, long addr, long data) +{ + int ret; + int add = 0; + + switch (request) { + /* when I and D space are separate, these will need to be fixed. */ + case PTRACE_PEEKDATA: + pr_debug("ptrace: PEEKDATA\n"); + add = MAX_SHARED_LIBS * 4; /* space between text and data */ + /* fall through */ + case PTRACE_PEEKTEXT: /* read word at location addr. */ + { + unsigned long tmp = 0; + int copied; + + ret = -EIO; + pr_debug("ptrace: PEEKTEXT at addr 0x%08lx + add %d %ld\n", addr, add, + sizeof(data)); + if (is_user_addr_valid(child, addr + add, sizeof(tmp)) < 0) + break; + pr_debug("ptrace: user address is valid\n"); + +#if L1_CODE_LENGTH != 0 + if (addr + add >= L1_CODE_START + && addr + add + sizeof(tmp) <= L1_CODE_START + L1_CODE_LENGTH) { + safe_dma_memcpy (&tmp, (const void *)(addr + add), sizeof(tmp)); + copied = sizeof(tmp); + } else +#endif + copied = + access_process_vm(child, addr + add, &tmp, + sizeof(tmp), 0); + pr_debug("ptrace: copied size %d [0x%08lx]\n", copied, tmp); + if (copied != sizeof(tmp)) + break; + ret = put_user(tmp, (unsigned long *)data); + break; + } + + /* read the word at location addr in the USER area. */ + case PTRACE_PEEKUSR: + { + unsigned long tmp; + ret = -EIO; + tmp = 0; + if ((addr & 3) || (addr > (sizeof(struct pt_regs) + 16))) { + printk(KERN_WARNING "ptrace error : PEEKUSR : temporarily returning " + "0 - %x sizeof(pt_regs) is %lx\n", + (int)addr, sizeof(struct pt_regs)); + break; + } + if (addr == sizeof(struct pt_regs)) { + /* PT_TEXT_ADDR */ + tmp = child->mm->start_code + TEXT_OFFSET; + } else if (addr == (sizeof(struct pt_regs) + 4)) { + /* PT_TEXT_END_ADDR */ + tmp = child->mm->end_code; + } else if (addr == (sizeof(struct pt_regs) + 8)) { + /* PT_DATA_ADDR */ + tmp = child->mm->start_data; +#ifdef CONFIG_BINFMT_ELF_FDPIC + } else if (addr == (sizeof(struct pt_regs) + 12)) { + tmp = child->mm->context.exec_fdpic_loadmap; + } else if (addr == (sizeof(struct pt_regs) + 16)) { + tmp = child->mm->context.interp_fdpic_loadmap; +#endif + } else { + tmp = get_reg(child, addr); + } + ret = put_user(tmp, (unsigned long *)data); + break; + } + + /* when I and D space are separate, this will have to be fixed. */ + case PTRACE_POKEDATA: + printk(KERN_NOTICE "ptrace: PTRACE_PEEKDATA\n"); + /* fall through */ + case PTRACE_POKETEXT: /* write the word at location addr. */ + { + int copied; + + ret = -EIO; + pr_debug("ptrace: POKETEXT at addr 0x%08lx + add %d %ld bytes %lx\n", + addr, add, sizeof(data), data); + if (is_user_addr_valid(child, addr + add, sizeof(data)) < 0) + break; + pr_debug("ptrace: user address is valid\n"); + +#if L1_CODE_LENGTH != 0 + if (addr + add >= L1_CODE_START + && addr + add + sizeof(data) <= L1_CODE_START + L1_CODE_LENGTH) { + safe_dma_memcpy ((void *)(addr + add), &data, sizeof(data)); + copied = sizeof(data); + } else +#endif + copied = + access_process_vm(child, addr + add, &data, + sizeof(data), 1); + pr_debug("ptrace: copied size %d\n", copied); + if (copied != sizeof(data)) + break; + ret = 0; + break; + } + + case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ + ret = -EIO; + if ((addr & 3) || (addr > (sizeof(struct pt_regs) + 16))) { + printk(KERN_WARNING "ptrace error : POKEUSR: temporarily returning 0\n"); + break; + } + + if (addr >= (sizeof(struct pt_regs))) { + ret = 0; + break; + } + if (addr == PT_SYSCFG) { + data &= SYSCFG_MASK; + data |= get_reg(child, PT_SYSCFG); + } + ret = put_reg(child, addr, data); + break; + + case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ + case PTRACE_CONT: + { /* restart after signal. */ + long tmp; + + pr_debug("ptrace_cont\n"); + + ret = -EIO; + if (!valid_signal(data)) + break; + if (request == PTRACE_SYSCALL) + set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + else + clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + + child->exit_code = data; + /* make sure the single step bit is not set. */ + tmp = get_reg(child, PT_SYSCFG) & ~(TRACE_BITS); + put_reg(child, PT_SYSCFG, tmp); + pr_debug("before wake_up_process\n"); + wake_up_process(child); + ret = 0; + break; + } + + /* + * make the child exit. Best I can do is send it a sigkill. + * perhaps it should be put in the status that it wants to + * exit. + */ + case PTRACE_KILL: + { + long tmp; + ret = 0; + if (child->exit_state == EXIT_ZOMBIE) /* already dead */ + break; + child->exit_code = SIGKILL; + /* make sure the single step bit is not set. */ + tmp = get_reg(child, PT_SYSCFG) & ~(TRACE_BITS); + put_reg(child, PT_SYSCFG, tmp); + wake_up_process(child); + break; + } + + case PTRACE_SINGLESTEP: + { /* set the trap flag. */ + long tmp; + + pr_debug("single step\n"); + ret = -EIO; + if (!valid_signal(data)) + break; + clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + + tmp = get_reg(child, PT_SYSCFG) | (TRACE_BITS); + put_reg(child, PT_SYSCFG, tmp); + + child->exit_code = data; + /* give it a chance to run. */ + wake_up_process(child); + ret = 0; + break; + } + + case PTRACE_DETACH: + { /* detach a process that was attached. */ + ret = ptrace_detach(child, data); + break; + } + + case PTRACE_GETREGS: + { + + /* Get all gp regs from the child. */ + ret = ptrace_getregs(child, (void __user *)data); + break; + } + + case PTRACE_SETREGS: + { + printk(KERN_NOTICE + "ptrace: SETREGS: **** NOT IMPLEMENTED ***\n"); + /* Set all gp regs in the child. */ + ret = 0; + break; + } + default: + ret = ptrace_request(child, request, addr, data); + break; + } + + return ret; +} + +asmlinkage void syscall_trace(void) +{ + + if (!test_thread_flag(TIF_SYSCALL_TRACE)) + return; + + if (!(current->ptrace & PT_PTRACED)) + return; + + /* the 0x80 provides a way for the tracing parent to distinguish + * between a syscall stop and SIGTRAP delivery + */ + ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) + ? 0x80 : 0)); + + /* + * this isn't the same as continuing with a signal, but it will do + * for normal use. strace only continues with a signal if the + * stopping signal is not SIGTRAP. -brl + */ + if (current->exit_code) { + send_sig(current->exit_code, current, 1); + current->exit_code = 0; + } +} diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c new file mode 100644 index 0000000..342bb8d --- /dev/null +++ b/arch/blackfin/kernel/setup.c @@ -0,0 +1,902 @@ +/* + * File: arch/blackfin/kernel/setup.c + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/delay.h> +#include <linux/console.h> +#include <linux/bootmem.h> +#include <linux/seq_file.h> +#include <linux/cpu.h> +#include <linux/module.h> +#include <linux/console.h> +#include <linux/tty.h> + +#include <linux/ext2_fs.h> +#include <linux/cramfs_fs.h> +#include <linux/romfs_fs.h> + +#include <asm/cacheflush.h> +#include <asm/blackfin.h> +#include <asm/cplbinit.h> + +unsigned long memory_start, memory_end, physical_mem_end; +unsigned long reserved_mem_dcache_on; +unsigned long reserved_mem_icache_on; +EXPORT_SYMBOL(memory_start); +EXPORT_SYMBOL(memory_end); +EXPORT_SYMBOL(physical_mem_end); +EXPORT_SYMBOL(_ramend); + +#ifdef CONFIG_MTD_UCLINUX +unsigned long memory_mtd_end, memory_mtd_start, mtd_size; +unsigned long _ebss; +EXPORT_SYMBOL(memory_mtd_end); +EXPORT_SYMBOL(memory_mtd_start); +EXPORT_SYMBOL(mtd_size); +#endif + +char command_line[COMMAND_LINE_SIZE]; + +#if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE) +static void generate_cpl_tables(void); +#endif + +void __init bf53x_cache_init(void) +{ +#if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE) + generate_cpl_tables(); +#endif + +#ifdef CONFIG_BLKFIN_CACHE + bfin_icache_init(); + printk(KERN_INFO "Instruction Cache Enabled\n"); +#endif + +#ifdef CONFIG_BLKFIN_DCACHE + bfin_dcache_init(); + printk(KERN_INFO "Data Cache Enabled" +# if defined CONFIG_BLKFIN_WB + " (write-back)" +# elif defined CONFIG_BLKFIN_WT + " (write-through)" +# endif + "\n"); +#endif +} + +void bf53x_relocate_l1_mem(void) +{ + unsigned long l1_code_length; + unsigned long l1_data_a_length; + unsigned long l1_data_b_length; + + l1_code_length = _etext_l1 - _stext_l1; + if (l1_code_length > L1_CODE_LENGTH) + l1_code_length = L1_CODE_LENGTH; + /* cannot complain as printk is not available as yet. + * But we can continue booting and complain later! + */ + + /* Copy _stext_l1 to _etext_l1 to L1 instruction SRAM */ + dma_memcpy(_stext_l1, _l1_lma_start, l1_code_length); + + l1_data_a_length = _ebss_l1 - _sdata_l1; + if (l1_data_a_length > L1_DATA_A_LENGTH) + l1_data_a_length = L1_DATA_A_LENGTH; + + /* Copy _sdata_l1 to _ebss_l1 to L1 data bank A SRAM */ + dma_memcpy(_sdata_l1, _l1_lma_start + l1_code_length, l1_data_a_length); + + l1_data_b_length = _ebss_b_l1 - _sdata_b_l1; + if (l1_data_b_length > L1_DATA_B_LENGTH) + l1_data_b_length = L1_DATA_B_LENGTH; + + /* Copy _sdata_b_l1 to _ebss_b_l1 to L1 data bank B SRAM */ + dma_memcpy(_sdata_b_l1, _l1_lma_start + l1_code_length + + l1_data_a_length, l1_data_b_length); + +} + +/* + * Initial parsing of the command line. Currently, we support: + * - Controlling the linux memory size: mem=xxx[KMG] + * - Controlling the physical memory size: max_mem=xxx[KMG][$][#] + * $ -> reserved memory is dcacheable + * # -> reserved memory is icacheable + */ +static __init void parse_cmdline_early(char *cmdline_p) +{ + char c = ' ', *to = cmdline_p; + unsigned int memsize; + for (;;) { + if (c == ' ') { + + if (!memcmp(to, "mem=", 4)) { + to += 4; + memsize = memparse(to, &to); + if (memsize) + _ramend = memsize; + + } else if (!memcmp(to, "max_mem=", 8)) { + to += 8; + memsize = memparse(to, &to); + if (memsize) { + physical_mem_end = memsize; + if (*to != ' ') { + if (*to == '$' + || *(to + 1) == '$') + reserved_mem_dcache_on = + 1; + if (*to == '#' + || *(to + 1) == '#') + reserved_mem_icache_on = + 1; + } + } + } + + } + c = *(to++); + if (!c) + break; + } +} + +void __init setup_arch(char **cmdline_p) +{ + int bootmap_size; + unsigned long l1_length, sclk, cclk; +#ifdef CONFIG_MTD_UCLINUX + unsigned long mtd_phys = 0; +#endif + + cclk = get_cclk(); + sclk = get_sclk(); + +#if !defined(CONFIG_BFIN_KERNEL_CLOCK) && defined(ANOMALY_05000273) + if (cclk == sclk) + panic("ANOMALY 05000273, SCLK can not be same as CCLK"); +#endif + +#if defined(ANOMALY_05000266) + bfin_read_IMDMA_D0_IRQ_STATUS(); + bfin_read_IMDMA_D1_IRQ_STATUS(); +#endif + +#ifdef DEBUG_SERIAL_EARLY_INIT + bfin_console_init(); /* early console registration */ + /* this give a chance to get printk() working before crash. */ +#endif + +#if defined(CONFIG_CHR_DEV_FLASH) || defined(CONFIG_BLK_DEV_FLASH) + /* we need to initialize the Flashrom device here since we might + * do things with flash early on in the boot + */ + flash_probe(); +#endif + +#if defined(CONFIG_CMDLINE_BOOL) + memset(command_line, 0, sizeof(command_line)); + strncpy(&command_line[0], CONFIG_CMDLINE, sizeof(command_line)); + command_line[sizeof(command_line) - 1] = 0; +#endif + + /* Keep a copy of command line */ + *cmdline_p = &command_line[0]; + memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE); + boot_command_line[COMMAND_LINE_SIZE - 1] = 0; + + /* setup memory defaults from the user config */ + physical_mem_end = 0; + _ramend = CONFIG_MEM_SIZE * 1024 * 1024; + + parse_cmdline_early(&command_line[0]); + + if (physical_mem_end == 0) + physical_mem_end = _ramend; + + /* by now the stack is part of the init task */ + memory_end = _ramend - DMA_UNCACHED_REGION; + + _ramstart = (unsigned long)__bss_stop; + memory_start = PAGE_ALIGN(_ramstart); + +#if defined(CONFIG_MTD_UCLINUX) + /* generic memory mapped MTD driver */ + memory_mtd_end = memory_end; + + mtd_phys = _ramstart; + mtd_size = PAGE_ALIGN(*((unsigned long *)(mtd_phys + 8))); + +# if defined(CONFIG_EXT2_FS) || defined(CONFIG_EXT3_FS) + if (*((unsigned short *)(mtd_phys + 0x438)) == EXT2_SUPER_MAGIC) + mtd_size = + PAGE_ALIGN(*((unsigned long *)(mtd_phys + 0x404)) << 10); +# endif + +# if defined(CONFIG_CRAMFS) + if (*((unsigned long *)(mtd_phys)) == CRAMFS_MAGIC) + mtd_size = PAGE_ALIGN(*((unsigned long *)(mtd_phys + 0x4))); +# endif + +# if defined(CONFIG_ROMFS_FS) + if (((unsigned long *)mtd_phys)[0] == ROMSB_WORD0 + && ((unsigned long *)mtd_phys)[1] == ROMSB_WORD1) + mtd_size = + PAGE_ALIGN(be32_to_cpu(((unsigned long *)mtd_phys)[2])); +# if (defined(CONFIG_BLKFIN_CACHE) && defined(ANOMALY_05000263)) + /* Due to a Hardware Anomaly we need to limit the size of usable + * instruction memory to max 60MB, 56 if HUNT_FOR_ZERO is on + * 05000263 - Hardware loop corrupted when taking an ICPLB exception + */ +# if (defined(CONFIG_DEBUG_HUNT_FOR_ZERO)) + if (memory_end >= 56 * 1024 * 1024) + memory_end = 56 * 1024 * 1024; +# else + if (memory_end >= 60 * 1024 * 1024) + memory_end = 60 * 1024 * 1024; +# endif /* CONFIG_DEBUG_HUNT_FOR_ZERO */ +# endif /* ANOMALY_05000263 */ +# endif /* CONFIG_ROMFS_FS */ + + memory_end -= mtd_size; + + if (mtd_size == 0) { + console_init(); + panic("Don't boot kernel without rootfs attached.\n"); + } + + /* Relocate MTD image to the top of memory after the uncached memory area */ + dma_memcpy((char *)memory_end, __bss_stop, mtd_size); + + memory_mtd_start = memory_end; + _ebss = memory_mtd_start; /* define _ebss for compatible */ +#endif /* CONFIG_MTD_UCLINUX */ + +#if (defined(CONFIG_BLKFIN_CACHE) && defined(ANOMALY_05000263)) + /* Due to a Hardware Anomaly we need to limit the size of usable + * instruction memory to max 60MB, 56 if HUNT_FOR_ZERO is on + * 05000263 - Hardware loop corrupted when taking an ICPLB exception + */ +#if (defined(CONFIG_DEBUG_HUNT_FOR_ZERO)) + if (memory_end >= 56 * 1024 * 1024) + memory_end = 56 * 1024 * 1024; +#else + if (memory_end >= 60 * 1024 * 1024) + memory_end = 60 * 1024 * 1024; +#endif /* CONFIG_DEBUG_HUNT_FOR_ZERO */ + printk(KERN_NOTICE "Warning: limiting memory to %liMB due to hardware anomaly 05000263\n", memory_end >> 20); +#endif /* ANOMALY_05000263 */ + +#if !defined(CONFIG_MTD_UCLINUX) + memory_end -= SIZE_4K; /*In case there is no valid CPLB behind memory_end make sure we don't get to close*/ +#endif + init_mm.start_code = (unsigned long)_stext; + init_mm.end_code = (unsigned long)_etext; + init_mm.end_data = (unsigned long)_edata; + init_mm.brk = (unsigned long)0; + + init_leds(); + + printk(KERN_INFO "Blackfin support (C) 2004-2007 Analog Devices, Inc.\n"); + printk(KERN_INFO "Compiled for ADSP-%s Rev 0.%d\n", CPU, bfin_compiled_revid()); + if (bfin_revid() != bfin_compiled_revid()) + printk(KERN_ERR "Warning: Compiled for Rev %d, but running on Rev %d\n", + bfin_compiled_revid(), bfin_revid()); + if (bfin_revid() < SUPPORTED_REVID) + printk(KERN_ERR "Warning: Unsupported Chip Revision ADSP-%s Rev 0.%d detected\n", + CPU, bfin_revid()); + printk(KERN_INFO "Blackfin Linux support by http://blackfin.uclinux.org/\n"); + + printk(KERN_INFO "Processor Speed: %lu MHz core clock and %lu Mhz System Clock\n", + cclk / 1000000, sclk / 1000000); + +#if defined(ANOMALY_05000273) + if ((cclk >> 1) <= sclk) + printk("\n\n\nANOMALY_05000273: CCLK must be >= 2*SCLK !!!\n\n\n"); +#endif + + printk(KERN_INFO "Board Memory: %ldMB\n", physical_mem_end >> 20); + printk(KERN_INFO "Kernel Managed Memory: %ldMB\n", _ramend >> 20); + + printk(KERN_INFO "Memory map:\n" + KERN_INFO " text = 0x%p-0x%p\n" + KERN_INFO " init = 0x%p-0x%p\n" + KERN_INFO " data = 0x%p-0x%p\n" + KERN_INFO " stack = 0x%p-0x%p\n" + KERN_INFO " bss = 0x%p-0x%p\n" + KERN_INFO " available = 0x%p-0x%p\n" +#ifdef CONFIG_MTD_UCLINUX + KERN_INFO " rootfs = 0x%p-0x%p\n" +#endif +#if DMA_UNCACHED_REGION > 0 + KERN_INFO " DMA Zone = 0x%p-0x%p\n" +#endif + , _stext, _etext, + __init_begin, __init_end, + _sdata, _edata, + (void*)&init_thread_union, (void*)((int)(&init_thread_union) + 0x2000), + __bss_start, __bss_stop, + (void*)_ramstart, (void*)memory_end +#ifdef CONFIG_MTD_UCLINUX + , (void*)memory_mtd_start, (void*)(memory_mtd_start + mtd_size) +#endif +#if DMA_UNCACHED_REGION > 0 + , (void*)(_ramend - DMA_UNCACHED_REGION), (void*)(_ramend) +#endif + ); + + /* + * give all the memory to the bootmap allocator, tell it to put the + * boot mem_map at the start of memory + */ + bootmap_size = init_bootmem_node(NODE_DATA(0), memory_start >> PAGE_SHIFT, /* map goes here */ + PAGE_OFFSET >> PAGE_SHIFT, + memory_end >> PAGE_SHIFT); + /* + * free the usable memory, we have to make sure we do not free + * the bootmem bitmap so we then reserve it after freeing it :-) + */ + free_bootmem(memory_start, memory_end - memory_start); + + reserve_bootmem(memory_start, bootmap_size); + /* + * get kmalloc into gear + */ + paging_init(); + + /* check the size of the l1 area */ + l1_length = _etext_l1 - _stext_l1; + if (l1_length > L1_CODE_LENGTH) + panic("L1 memory overflow\n"); + + l1_length = _ebss_l1 - _sdata_l1; + if (l1_length > L1_DATA_A_LENGTH) + panic("L1 memory overflow\n"); + + bf53x_cache_init(); + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) +# if defined(CONFIG_BFIN_SHARED_FLASH_ENET) && defined(CONFIG_BFIN533_STAMP) + /* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */ + bfin_write_FIO_DIR(bfin_read_FIO_DIR() | (1 << CONFIG_ENET_FLASH_PIN)); + bfin_write_FIO_FLAG_S(1 << CONFIG_ENET_FLASH_PIN); + SSYNC(); +# endif +# if defined (CONFIG_BFIN561_EZKIT) + bfin_write_FIO0_DIR(bfin_read_FIO0_DIR() | (1 << 12)); + SSYNC(); +# endif /* defined (CONFIG_BFIN561_EZKIT) */ +#endif + + printk(KERN_INFO "Hardware Trace Enabled\n"); + bfin_write_TBUFCTL(0x03); +} + +#if defined(CONFIG_BF561) +static struct cpu cpu[2]; +#else +static struct cpu cpu[1]; +#endif +static int __init topology_init(void) +{ +#if defined (CONFIG_BF561) + register_cpu(&cpu[0], 0); + register_cpu(&cpu[1], 1); + return 0; +#else + return register_cpu(cpu, 0); +#endif +} + +subsys_initcall(topology_init); + +#if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE) +u16 lock_kernel_check(u32 start, u32 end) +{ + if ((start <= (u32) _stext && end >= (u32) _end) + || (start >= (u32) _stext && end <= (u32) _end)) + return IN_KERNEL; + return 0; +} + +static unsigned short __init +fill_cplbtab(struct cplb_tab *table, + unsigned long start, unsigned long end, + unsigned long block_size, unsigned long cplb_data) +{ + int i; + + switch (block_size) { + case SIZE_4M: + i = 3; + break; + case SIZE_1M: + i = 2; + break; + case SIZE_4K: + i = 1; + break; + case SIZE_1K: + default: + i = 0; + break; + } + + cplb_data = (cplb_data & ~(3 << 16)) | (i << 16); + + while ((start < end) && (table->pos < table->size)) { + + table->tab[table->pos++] = start; + + if (lock_kernel_check(start, start + block_size) == IN_KERNEL) + table->tab[table->pos++] = + cplb_data | CPLB_LOCK | CPLB_DIRTY; + else + table->tab[table->pos++] = cplb_data; + + start += block_size; + } + return 0; +} + +static unsigned short __init +close_cplbtab(struct cplb_tab *table) +{ + + while (table->pos < table->size) { + + table->tab[table->pos++] = 0; + table->tab[table->pos++] = 0; /* !CPLB_VALID */ + } + return 0; +} + +static void __init generate_cpl_tables(void) +{ + + u16 i, j, process; + u32 a_start, a_end, as, ae, as_1m; + + struct cplb_tab *t_i = NULL; + struct cplb_tab *t_d = NULL; + struct s_cplb cplb; + + cplb.init_i.size = MAX_CPLBS; + cplb.init_d.size = MAX_CPLBS; + cplb.switch_i.size = MAX_SWITCH_I_CPLBS; + cplb.switch_d.size = MAX_SWITCH_D_CPLBS; + + cplb.init_i.pos = 0; + cplb.init_d.pos = 0; + cplb.switch_i.pos = 0; + cplb.switch_d.pos = 0; + + cplb.init_i.tab = icplb_table; + cplb.init_d.tab = dcplb_table; + cplb.switch_i.tab = ipdt_table; + cplb.switch_d.tab = dpdt_table; + + cplb_data[SDRAM_KERN].end = memory_end; + +#ifdef CONFIG_MTD_UCLINUX + cplb_data[SDRAM_RAM_MTD].start = memory_mtd_start; + cplb_data[SDRAM_RAM_MTD].end = memory_mtd_start + mtd_size; + cplb_data[SDRAM_RAM_MTD].valid = mtd_size > 0; +# if defined(CONFIG_ROMFS_FS) + cplb_data[SDRAM_RAM_MTD].attr |= I_CPLB; + + /* + * The ROMFS_FS size is often not multiple of 1MB. + * This can cause multiple CPLB sets covering the same memory area. + * This will then cause multiple CPLB hit exceptions. + * Workaround: We ensure a contiguous memory area by extending the kernel + * memory section over the mtd section. + * For ROMFS_FS memory must be covered with ICPLBs anyways. + * So there is no difference between kernel and mtd memory setup. + */ + + cplb_data[SDRAM_KERN].end = memory_mtd_start + mtd_size;; + cplb_data[SDRAM_RAM_MTD].valid = 0; + +# endif +#else + cplb_data[SDRAM_RAM_MTD].valid = 0; +#endif + + cplb_data[SDRAM_DMAZ].start = _ramend - DMA_UNCACHED_REGION; + cplb_data[SDRAM_DMAZ].end = _ramend; + + cplb_data[RES_MEM].start = _ramend; + cplb_data[RES_MEM].end = physical_mem_end; + + if (reserved_mem_dcache_on) + cplb_data[RES_MEM].d_conf = SDRAM_DGENERIC; + else + cplb_data[RES_MEM].d_conf = SDRAM_DNON_CHBL; + + if (reserved_mem_icache_on) + cplb_data[RES_MEM].i_conf = SDRAM_IGENERIC; + else + cplb_data[RES_MEM].i_conf = SDRAM_INON_CHBL; + + for (i = ZERO_P; i <= L2_MEM; i++) { + + if (cplb_data[i].valid) { + + as_1m = cplb_data[i].start % SIZE_1M; + + /* We need to make sure all sections are properly 1M aligned + * However between Kernel Memory and the Kernel mtd section, depending on the + * rootfs size, there can be overlapping memory areas. + */ + + if (as_1m && i!=L1I_MEM && i!=L1D_MEM) { +#ifdef CONFIG_MTD_UCLINUX + if (i == SDRAM_RAM_MTD) { + if ((cplb_data[SDRAM_KERN].end + 1) > cplb_data[SDRAM_RAM_MTD].start) + cplb_data[SDRAM_RAM_MTD].start = (cplb_data[i].start & (-2*SIZE_1M)) + SIZE_1M; + else + cplb_data[SDRAM_RAM_MTD].start = (cplb_data[i].start & (-2*SIZE_1M)); + } else +#endif + printk(KERN_WARNING "Unaligned Start of %s at 0x%X\n", + cplb_data[i].name, cplb_data[i].start); + } + + as = cplb_data[i].start % SIZE_4M; + ae = cplb_data[i].end % SIZE_4M; + + if (as) + a_start = cplb_data[i].start + (SIZE_4M - (as)); + else + a_start = cplb_data[i].start; + + a_end = cplb_data[i].end - ae; + + for (j = INITIAL_T; j <= SWITCH_T; j++) { + + switch (j) { + case INITIAL_T: + if (cplb_data[i].attr & INITIAL_T) { + t_i = &cplb.init_i; + t_d = &cplb.init_d; + process = 1; + } else + process = 0; + break; + case SWITCH_T: + if (cplb_data[i].attr & SWITCH_T) { + t_i = &cplb.switch_i; + t_d = &cplb.switch_d; + process = 1; + } else + process = 0; + break; + default: + process = 0; + break; + } + + if (process) { + if (cplb_data[i].attr & I_CPLB) { + + if (cplb_data[i].psize) { + fill_cplbtab(t_i, + cplb_data[i].start, + cplb_data[i].end, + cplb_data[i].psize, + cplb_data[i].i_conf); + } else { + /*icplb_table */ +#if (defined(CONFIG_BLKFIN_CACHE) && defined(ANOMALY_05000263)) + if (i == SDRAM_KERN) { + fill_cplbtab(t_i, + cplb_data[i].start, + cplb_data[i].end, + SIZE_4M, + cplb_data[i].i_conf); + } else +#endif + { + fill_cplbtab(t_i, + cplb_data[i].start, + a_start, + SIZE_1M, + cplb_data[i].i_conf); + fill_cplbtab(t_i, + a_start, + a_end, + SIZE_4M, + cplb_data[i].i_conf); + fill_cplbtab(t_i, a_end, + cplb_data[i].end, + SIZE_1M, + cplb_data[i].i_conf); + } + } + + } + if (cplb_data[i].attr & D_CPLB) { + + if (cplb_data[i].psize) { + fill_cplbtab(t_d, + cplb_data[i].start, + cplb_data[i].end, + cplb_data[i].psize, + cplb_data[i].d_conf); + } else { +/*dcplb_table*/ + fill_cplbtab(t_d, + cplb_data[i].start, + a_start, SIZE_1M, + cplb_data[i].d_conf); + fill_cplbtab(t_d, a_start, + a_end, SIZE_4M, + cplb_data[i].d_conf); + fill_cplbtab(t_d, a_end, + cplb_data[i].end, + SIZE_1M, + cplb_data[i].d_conf); + + } + + } + } + } + + } + } + +/* close tables */ + + close_cplbtab(&cplb.init_i); + close_cplbtab(&cplb.init_d); + + cplb.init_i.tab[cplb.init_i.pos] = -1; + cplb.init_d.tab[cplb.init_d.pos] = -1; + cplb.switch_i.tab[cplb.switch_i.pos] = -1; + cplb.switch_d.tab[cplb.switch_d.pos] = -1; + +} + +#endif + +static inline u_long get_vco(void) +{ + u_long msel; + u_long vco; + + msel = (bfin_read_PLL_CTL() >> 9) & 0x3F; + if (0 == msel) + msel = 64; + + vco = CONFIG_CLKIN_HZ; + vco >>= (1 & bfin_read_PLL_CTL()); /* DF bit */ + vco = msel * vco; + return vco; +} + +/*Get the Core clock*/ +u_long get_cclk(void) +{ + u_long csel, ssel; + if (bfin_read_PLL_STAT() & 0x1) + return CONFIG_CLKIN_HZ; + + ssel = bfin_read_PLL_DIV(); + csel = ((ssel >> 4) & 0x03); + ssel &= 0xf; + if (ssel && ssel < (1 << csel)) /* SCLK > CCLK */ + return get_vco() / ssel; + return get_vco() >> csel; +} + +EXPORT_SYMBOL(get_cclk); + +/* Get the System clock */ +u_long get_sclk(void) +{ + u_long ssel; + + if (bfin_read_PLL_STAT() & 0x1) + return CONFIG_CLKIN_HZ; + + ssel = (bfin_read_PLL_DIV() & 0xf); + if (0 == ssel) { + printk(KERN_WARNING "Invalid System Clock\n"); + ssel = 1; + } + + return get_vco() / ssel; +} + +EXPORT_SYMBOL(get_sclk); + +/* + * Get CPU information for use by the procfs. + */ +static int show_cpuinfo(struct seq_file *m, void *v) +{ + char *cpu, *mmu, *fpu, *name; + uint32_t revid; + + u_long cclk = 0, sclk = 0; + u_int dcache_size = 0, dsup_banks = 0; + + cpu = CPU; + mmu = "none"; + fpu = "none"; + revid = bfin_revid(); + name = bfin_board_name; + + cclk = get_cclk(); + sclk = get_sclk(); + + seq_printf(m, "CPU:\t\tADSP-%s Rev. 0.%d\n" + "MMU:\t\t%s\n" + "FPU:\t\t%s\n" + "Core Clock:\t%9lu Hz\n" + "System Clock:\t%9lu Hz\n" + "BogoMips:\t%lu.%02lu\n" + "Calibration:\t%lu loops\n", + cpu, revid, mmu, fpu, + cclk, + sclk, + (loops_per_jiffy * HZ) / 500000, + ((loops_per_jiffy * HZ) / 5000) % 100, + (loops_per_jiffy * HZ)); + seq_printf(m, "Board Name:\t%s\n", name); + seq_printf(m, "Board Memory:\t%ld MB\n", physical_mem_end >> 20); + seq_printf(m, "Kernel Memory:\t%ld MB\n", (unsigned long)_ramend >> 20); + if (bfin_read_IMEM_CONTROL() & (ENICPLB | IMC)) + seq_printf(m, "I-CACHE:\tON\n"); + else + seq_printf(m, "I-CACHE:\tOFF\n"); + if ((bfin_read_DMEM_CONTROL()) & (ENDCPLB | DMC_ENABLE)) + seq_printf(m, "D-CACHE:\tON" +#if defined CONFIG_BLKFIN_WB + " (write-back)" +#elif defined CONFIG_BLKFIN_WT + " (write-through)" +#endif + "\n"); + else + seq_printf(m, "D-CACHE:\tOFF\n"); + + + switch(bfin_read_DMEM_CONTROL() & (1 << DMC0_P | 1 << DMC1_P)) { + case ACACHE_BSRAM: + seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tSRAM\n"); + dcache_size = 16; + dsup_banks = 1; + break; + case ACACHE_BCACHE: + seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tCACHE\n"); + dcache_size = 32; + dsup_banks = 2; + break; + case ASRAM_BSRAM: + seq_printf(m, "DBANK-A:\tSRAM\n" "DBANK-B:\tSRAM\n"); + dcache_size = 0; + dsup_banks = 0; + break; + default: + break; + } + + + seq_printf(m, "I-CACHE Size:\t%dKB\n", BLKFIN_ICACHESIZE / 1024); + seq_printf(m, "D-CACHE Size:\t%dKB\n", dcache_size); + seq_printf(m, "I-CACHE Setup:\t%d Sub-banks/%d Ways, %d Lines/Way\n", + BLKFIN_ISUBBANKS, BLKFIN_IWAYS, BLKFIN_ILINES); + seq_printf(m, + "D-CACHE Setup:\t%d Super-banks/%d Sub-banks/%d Ways, %d Lines/Way\n", + dsup_banks, BLKFIN_DSUBBANKS, BLKFIN_DWAYS, + BLKFIN_DLINES); +#ifdef CONFIG_BLKFIN_CACHE_LOCK + switch (read_iloc()) { + case WAY0_L: + seq_printf(m, "Way0 Locked-Down\n"); + break; + case WAY1_L: + seq_printf(m, "Way1 Locked-Down\n"); + break; + case WAY01_L: + seq_printf(m, "Way0,Way1 Locked-Down\n"); + break; + case WAY2_L: + seq_printf(m, "Way2 Locked-Down\n"); + break; + case WAY02_L: + seq_printf(m, "Way0,Way2 Locked-Down\n"); + break; + case WAY12_L: + seq_printf(m, "Way1,Way2 Locked-Down\n"); + break; + case WAY012_L: + seq_printf(m, "Way0,Way1 & Way2 Locked-Down\n"); + break; + case WAY3_L: + seq_printf(m, "Way3 Locked-Down\n"); + break; + case WAY03_L: + seq_printf(m, "Way0,Way3 Locked-Down\n"); + break; + case WAY13_L: + seq_printf(m, "Way1,Way3 Locked-Down\n"); + break; + case WAY013_L: + seq_printf(m, "Way 0,Way1,Way3 Locked-Down\n"); + break; + case WAY32_L: + seq_printf(m, "Way3,Way2 Locked-Down\n"); + break; + case WAY320_L: + seq_printf(m, "Way3,Way2,Way0 Locked-Down\n"); + break; + case WAY321_L: + seq_printf(m, "Way3,Way2,Way1 Locked-Down\n"); + break; + case WAYALL_L: + seq_printf(m, "All Ways are locked\n"); + break; + default: + seq_printf(m, "No Ways are locked\n"); + } +#endif + return 0; +} + +static void *c_start(struct seq_file *m, loff_t *pos) +{ + return *pos < NR_CPUS ? ((void *)0x12345678) : NULL; +} + +static void *c_next(struct seq_file *m, void *v, loff_t *pos) +{ + ++*pos; + return c_start(m, pos); +} + +static void c_stop(struct seq_file *m, void *v) +{ +} + +struct seq_operations cpuinfo_op = { + .start = c_start, + .next = c_next, + .stop = c_stop, + .show = show_cpuinfo, +}; + +void cmdline_init(unsigned long r0) +{ + if (r0) + strncpy(command_line, (char *)r0, COMMAND_LINE_SIZE); +} diff --git a/arch/blackfin/kernel/signal.c b/arch/blackfin/kernel/signal.c new file mode 100644 index 0000000..316e65c --- /dev/null +++ b/arch/blackfin/kernel/signal.c @@ -0,0 +1,356 @@ +/* + * File: arch/blackfin/kernel/signal.c + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/signal.h> +#include <linux/syscalls.h> +#include <linux/ptrace.h> +#include <linux/tty.h> +#include <linux/personality.h> +#include <linux/binfmts.h> +#include <linux/freezer.h> + +#include <asm/uaccess.h> +#include <asm/cacheflush.h> +#include <asm/ucontext.h> + +#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) + +struct fdpic_func_descriptor { + unsigned long text; + unsigned long GOT; +}; + +struct rt_sigframe { + int sig; + struct siginfo *pinfo; + void *puc; + char retcode[8]; + struct siginfo info; + struct ucontext uc; +}; + +asmlinkage int sys_sigaltstack(const stack_t * uss, stack_t * uoss) +{ + return do_sigaltstack(uss, uoss, rdusp()); +} + +static inline int +rt_restore_sigcontext(struct pt_regs *regs, struct sigcontext *sc, int *pr0) +{ + unsigned long usp = 0; + int err = 0; + +#define RESTORE(x) err |= __get_user(regs->x, &sc->sc_##x) + + /* restore passed registers */ + RESTORE(r0); RESTORE(r1); RESTORE(r2); RESTORE(r3); + RESTORE(r4); RESTORE(r5); RESTORE(r6); RESTORE(r7); + RESTORE(p0); RESTORE(p1); RESTORE(p2); RESTORE(p3); + RESTORE(p4); RESTORE(p5); + err |= __get_user(usp, &sc->sc_usp); + wrusp(usp); + RESTORE(a0w); RESTORE(a1w); + RESTORE(a0x); RESTORE(a1x); + RESTORE(astat); + RESTORE(rets); + RESTORE(pc); + RESTORE(retx); + RESTORE(fp); + RESTORE(i0); RESTORE(i1); RESTORE(i2); RESTORE(i3); + RESTORE(m0); RESTORE(m1); RESTORE(m2); RESTORE(m3); + RESTORE(l0); RESTORE(l1); RESTORE(l2); RESTORE(l3); + RESTORE(b0); RESTORE(b1); RESTORE(b2); RESTORE(b3); + RESTORE(lc0); RESTORE(lc1); + RESTORE(lt0); RESTORE(lt1); + RESTORE(lb0); RESTORE(lb1); + RESTORE(seqstat); + + regs->orig_p0 = -1; /* disable syscall checks */ + + *pr0 = regs->r0; + return err; +} + +asmlinkage int do_rt_sigreturn(unsigned long __unused) +{ + struct pt_regs *regs = (struct pt_regs *)__unused; + unsigned long usp = rdusp(); + struct rt_sigframe *frame = (struct rt_sigframe *)(usp); + sigset_t set; + int r0; + + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) + goto badframe; + if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) + goto badframe; + + sigdelsetmask(&set, ~_BLOCKABLE); + spin_lock_irq(¤t->sighand->siglock); + current->blocked = set; + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + + if (rt_restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0)) + goto badframe; + + if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->usp) == -EFAULT) + goto badframe; + + return r0; + + badframe: + force_sig(SIGSEGV, current); + return 0; +} + +static inline int rt_setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs) +{ + int err = 0; + +#define SETUP(x) err |= __put_user(regs->x, &sc->sc_##x) + + SETUP(r0); SETUP(r1); SETUP(r2); SETUP(r3); + SETUP(r4); SETUP(r5); SETUP(r6); SETUP(r7); + SETUP(p0); SETUP(p1); SETUP(p2); SETUP(p3); + SETUP(p4); SETUP(p5); + err |= __put_user(rdusp(), &sc->sc_usp); + SETUP(a0w); SETUP(a1w); + SETUP(a0x); SETUP(a1x); + SETUP(astat); + SETUP(rets); + SETUP(pc); + SETUP(retx); + SETUP(fp); + SETUP(i0); SETUP(i1); SETUP(i2); SETUP(i3); + SETUP(m0); SETUP(m1); SETUP(m2); SETUP(m3); + SETUP(l0); SETUP(l1); SETUP(l2); SETUP(l3); + SETUP(b0); SETUP(b1); SETUP(b2); SETUP(b3); + SETUP(lc0); SETUP(lc1); + SETUP(lt0); SETUP(lt1); + SETUP(lb0); SETUP(lb1); + SETUP(seqstat); + + return err; +} + +static inline void push_cache(unsigned long vaddr, unsigned int len) +{ + flush_icache_range(vaddr, vaddr + len); +} + +static inline void *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, + size_t frame_size) +{ + unsigned long usp; + + /* Default to using normal stack. */ + usp = rdusp(); + + /* This is the X/Open sanctioned signal stack switching. */ + if (ka->sa.sa_flags & SA_ONSTACK) { + if (!on_sig_stack(usp)) + usp = current->sas_ss_sp + current->sas_ss_size; + } + return (void *)((usp - frame_size) & -8UL); +} + +static int +setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t * info, + sigset_t * set, struct pt_regs *regs) +{ + struct rt_sigframe *frame; + int err = 0; + + frame = get_sigframe(ka, regs, sizeof(*frame)); + + err |= __put_user((current_thread_info()->exec_domain + && current_thread_info()->exec_domain->signal_invmap + && sig < 32 + ? current_thread_info()->exec_domain-> + signal_invmap[sig] : sig), &frame->sig); + + err |= __put_user(&frame->info, &frame->pinfo); + err |= __put_user(&frame->uc, &frame->puc); + err |= copy_siginfo_to_user(&frame->info, info); + + /* Create the ucontext. */ + err |= __put_user(0, &frame->uc.uc_flags); + err |= __put_user(0, &frame->uc.uc_link); + err |= + __put_user((void *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp); + err |= __put_user(sas_ss_flags(rdusp()), &frame->uc.uc_stack.ss_flags); + err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); + err |= rt_setup_sigcontext(&frame->uc.uc_mcontext, regs); + err |= copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); + + /* Set up to return from userspace. */ + err |= __put_user(0x28, &(frame->retcode[0])); + err |= __put_user(0xe1, &(frame->retcode[1])); + err |= __put_user(0xad, &(frame->retcode[2])); + err |= __put_user(0x00, &(frame->retcode[3])); + err |= __put_user(0xa0, &(frame->retcode[4])); + err |= __put_user(0x00, &(frame->retcode[5])); + + if (err) + goto give_sigsegv; + + push_cache((unsigned long)&frame->retcode, sizeof(frame->retcode)); + + /* Set up registers for signal handler */ + wrusp((unsigned long)frame); + if (get_personality & FDPIC_FUNCPTRS) { + struct fdpic_func_descriptor __user *funcptr = + (struct fdpic_func_descriptor *) ka->sa.sa_handler; + __get_user(regs->pc, &funcptr->text); + __get_user(regs->p3, &funcptr->GOT); + } else + regs->pc = (unsigned long)ka->sa.sa_handler; + regs->rets = (unsigned long)(frame->retcode); + + regs->r0 = frame->sig; + regs->r1 = (unsigned long)(&frame->info); + regs->r2 = (unsigned long)(&frame->uc); + + return 0; + + give_sigsegv: + if (sig == SIGSEGV) + ka->sa.sa_handler = SIG_DFL; + force_sig(SIGSEGV, current); + return -EFAULT; +} + +static inline void +handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler) +{ + switch (regs->r0) { + case -ERESTARTNOHAND: + if (!has_handler) + goto do_restart; + regs->r0 = -EINTR; + break; + + case -ERESTARTSYS: + if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) { + regs->r0 = -EINTR; + break; + } + /* fallthrough */ + case -ERESTARTNOINTR: + do_restart: + regs->p0 = regs->orig_p0; + regs->r0 = regs->orig_r0; + regs->pc -= 2; + break; + } +} + +/* + * OK, we're invoking a handler + */ +static int +handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka, + sigset_t *oldset, struct pt_regs *regs) +{ + int ret; + + /* are we from a system call? to see pt_regs->orig_p0 */ + if (regs->orig_p0 >= 0) + /* If so, check system call restarting.. */ + handle_restart(regs, ka, 1); + + /* set up the stack frame */ + ret = setup_rt_frame(sig, ka, info, oldset, regs); + + if (ret == 0) { + spin_lock_irq(¤t->sighand->siglock); + sigorsets(¤t->blocked, ¤t->blocked, + &ka->sa.sa_mask); + if (!(ka->sa.sa_flags & SA_NODEFER)) + sigaddset(¤t->blocked, sig); + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + } + return ret; +} + +/* + * Note that 'init' is a special process: it doesn't get signals it doesn't + * want to handle. Thus you cannot kill init even with a SIGKILL even by + * mistake. + * + * Note that we go through the signals twice: once to check the signals + * that the kernel can handle, and then we build all the user-level signal + * handling stack-frames in one go after that. + */ +asmlinkage void do_signal(struct pt_regs *regs) +{ + siginfo_t info; + int signr; + struct k_sigaction ka; + sigset_t *oldset; + + current->thread.esp0 = (unsigned long)regs; + + if (try_to_freeze()) + goto no_signal; + + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + oldset = ¤t->saved_sigmask; + else + oldset = ¤t->blocked; + + signr = get_signal_to_deliver(&info, &ka, regs, NULL); + if (signr > 0) { + /* Whee! Actually deliver the signal. */ + if (handle_signal(signr, &info, &ka, oldset, regs) == 0) { + /* a signal was successfully delivered; the saved + * sigmask will have been stored in the signal frame, + * and will be restored by sigreturn, so we can simply + * clear the TIF_RESTORE_SIGMASK flag */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + clear_thread_flag(TIF_RESTORE_SIGMASK); + } + + return; + } + +no_signal: + /* Did we come from a system call? */ + if (regs->orig_p0 >= 0) + /* Restart the system call - no handlers present */ + handle_restart(regs, NULL, 0); + + /* if there's no signal to deliver, we just put the saved sigmask + * back */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) { + clear_thread_flag(TIF_RESTORE_SIGMASK); + sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + } +} diff --git a/arch/blackfin/kernel/sys_bfin.c b/arch/blackfin/kernel/sys_bfin.c new file mode 100644 index 0000000..f436e67 --- /dev/null +++ b/arch/blackfin/kernel/sys_bfin.c @@ -0,0 +1,115 @@ +/* + * File: arch/blackfin/kernel/sys_bfin.c + * Based on: + * Author: + * + * Created: + * Description: This file contains various random system calls that + * have a non-standard calling sequence on the Linux/bfin + * platform. + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/smp_lock.h> +#include <linux/spinlock.h> +#include <linux/sem.h> +#include <linux/msg.h> +#include <linux/shm.h> +#include <linux/syscalls.h> +#include <linux/mman.h> +#include <linux/file.h> + +#include <asm/cacheflush.h> +#include <asm/uaccess.h> +#include <asm/ipc.h> +#include <asm/dma.h> +#include <asm/unistd.h> + +/* + * sys_pipe() is the normal C calling standard for creating + * a pipe. It's not the way unix traditionally does this, though. + */ +asmlinkage int sys_pipe(unsigned long *fildes) +{ + int fd[2]; + int error; + + error = do_pipe(fd); + if (!error) { + if (copy_to_user(fildes, fd, 2 * sizeof(int))) + error = -EFAULT; + } + return error; +} + +/* common code for old and new mmaps */ +static inline long +do_mmap2(unsigned long addr, unsigned long len, + unsigned long prot, unsigned long flags, + unsigned long fd, unsigned long pgoff) +{ + int error = -EBADF; + struct file *file = NULL; + + flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); + if (!(flags & MAP_ANONYMOUS)) { + file = fget(fd); + if (!file) + goto out; + } + + down_write(¤t->mm->mmap_sem); + error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); + up_write(¤t->mm->mmap_sem); + + if (file) + fput(file); + out: + return error; +} + +asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, + unsigned long prot, unsigned long flags, + unsigned long fd, unsigned long pgoff) +{ + return do_mmap2(addr, len, prot, flags, fd, pgoff); +} + +asmlinkage int sys_getpagesize(void) +{ + return PAGE_SIZE; +} + +asmlinkage void *sys_sram_alloc(size_t size, unsigned long flags) +{ + return sram_alloc_with_lsl(size, flags); +} + +asmlinkage int sys_sram_free(const void *addr) +{ + return sram_free_with_lsl(addr); +} + +asmlinkage void *sys_dma_memcpy(void *dest, const void *src, size_t len) +{ + return safe_dma_memcpy(dest, src, len); +} diff --git a/arch/blackfin/kernel/time.c b/arch/blackfin/kernel/time.c new file mode 100644 index 0000000..f578176 --- /dev/null +++ b/arch/blackfin/kernel/time.c @@ -0,0 +1,326 @@ +/* + * File: arch/blackfin/kernel/time.c + * Based on: none - original work + * Author: + * + * Created: + * Description: This file contains the bfin-specific time handling details. + * Most of the stuff is located in the machine specific files. + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/profile.h> +#include <linux/interrupt.h> +#include <linux/time.h> +#include <linux/irq.h> + +#include <asm/blackfin.h> + +/* This is an NTP setting */ +#define TICK_SIZE (tick_nsec / 1000) + +static void time_sched_init(irqreturn_t(*timer_routine) + (int, void *)); +static unsigned long gettimeoffset(void); +static inline void do_leds(void); + +#if (defined(CONFIG_BFIN_ALIVE_LED) || defined(CONFIG_BFIN_IDLE_LED)) +void __init init_leds(void) +{ + unsigned int tmp = 0; + +#if defined(CONFIG_BFIN_ALIVE_LED) + /* config pins as output. */ + tmp = bfin_read_CONFIG_BFIN_ALIVE_LED_DPORT(); + SSYNC(); + bfin_write_CONFIG_BFIN_ALIVE_LED_DPORT(tmp | CONFIG_BFIN_ALIVE_LED_PIN); + SSYNC(); + + /* First set led be off */ + tmp = bfin_read_CONFIG_BFIN_ALIVE_LED_PORT(); + SSYNC(); + bfin_write_CONFIG_BFIN_ALIVE_LED_PORT(tmp | CONFIG_BFIN_ALIVE_LED_PIN); /* light off */ + SSYNC(); +#endif + +#if defined(CONFIG_BFIN_IDLE_LED) + /* config pins as output. */ + tmp = bfin_read_CONFIG_BFIN_IDLE_LED_DPORT(); + SSYNC(); + bfin_write_CONFIG_BFIN_IDLE_LED_DPORT(tmp | CONFIG_BFIN_IDLE_LED_PIN); + SSYNC(); + + /* First set led be off */ + tmp = bfin_read_CONFIG_BFIN_IDLE_LED_PORT(); + SSYNC(); + bfin_write_CONFIG_BFIN_IDLE_LED_PORT(tmp | CONFIG_BFIN_IDLE_LED_PIN); /* light off */ + SSYNC(); +#endif +} +#else +void __init init_leds(void) +{ +} +#endif + +#if defined(CONFIG_BFIN_ALIVE_LED) +static inline void do_leds(void) +{ + static unsigned int count = 50; + static int flag = 0; + unsigned short tmp = 0; + + if (--count == 0) { + count = 50; + flag = ~flag; + } + tmp = bfin_read_CONFIG_BFIN_ALIVE_LED_PORT(); + SSYNC(); + + if (flag) + tmp &= ~CONFIG_BFIN_ALIVE_LED_PIN; /* light on */ + else + tmp |= CONFIG_BFIN_ALIVE_LED_PIN; /* light off */ + + bfin_write_CONFIG_BFIN_ALIVE_LED_PORT(tmp); + SSYNC(); + +} +#else +static inline void do_leds(void) +{ +} +#endif + +static struct irqaction bfin_timer_irq = { + .name = "BFIN Timer Tick", + .flags = IRQF_DISABLED +}; + +/* + * The way that the Blackfin core timer works is: + * - CCLK is divided by a programmable 8-bit pre-scaler (TSCALE) + * - Every time TSCALE ticks, a 32bit is counted down (TCOUNT) + * + * If you take the fastest clock (1ns, or 1GHz to make the math work easier) + * 10ms is 10,000,000 clock ticks, which fits easy into a 32-bit counter + * (32 bit counter is 4,294,967,296ns or 4.2 seconds) so, we don't need + * to use TSCALE, and program it to zero (which is pass CCLK through). + * If you feel like using it, try to keep HZ * TIMESCALE to some + * value that divides easy (like power of 2). + */ + +#define TIME_SCALE 1 + +static void +time_sched_init(irqreturn_t(*timer_routine) (int, void *)) +{ + u32 tcount; + + /* power up the timer, but don't enable it just yet */ + bfin_write_TCNTL(1); + CSYNC(); + + /* + * the TSCALE prescaler counter. + */ + bfin_write_TSCALE((TIME_SCALE - 1)); + + tcount = ((get_cclk() / (HZ * TIME_SCALE)) - 1); + bfin_write_TPERIOD(tcount); + bfin_write_TCOUNT(tcount); + + /* now enable the timer */ + CSYNC(); + + bfin_write_TCNTL(7); + + bfin_timer_irq.handler = (irq_handler_t)timer_routine; + /* call setup_irq instead of request_irq because request_irq calls + * kmalloc which has not been initialized yet + */ + setup_irq(IRQ_CORETMR, &bfin_timer_irq); +} + +/* + * Should return useconds since last timer tick + */ +static unsigned long gettimeoffset(void) +{ + unsigned long offset; + unsigned long clocks_per_jiffy; + + clocks_per_jiffy = bfin_read_TPERIOD(); + offset = + (clocks_per_jiffy - + bfin_read_TCOUNT()) / (((clocks_per_jiffy + 1) * HZ) / + USEC_PER_SEC); + + /* Check if we just wrapped the counters and maybe missed a tick */ + if ((bfin_read_ILAT() & (1 << IRQ_CORETMR)) + && (offset < (100000 / HZ / 2))) + offset += (USEC_PER_SEC / HZ); + + return offset; +} + +static inline int set_rtc_mmss(unsigned long nowtime) +{ + return 0; +} + +/* + * timer_interrupt() needs to keep up the real-time clock, + * as well as call the "do_timer()" routine every clocktick + */ +#ifdef CONFIG_CORE_TIMER_IRQ_L1 +irqreturn_t timer_interrupt(int irq, void *dummy)__attribute__((l1_text)); +#endif + +irqreturn_t timer_interrupt(int irq, void *dummy) +{ + /* last time the cmos clock got updated */ + static long last_rtc_update = 0; + + write_seqlock(&xtime_lock); + + do_timer(1); + do_leds(); + +#ifndef CONFIG_SMP + update_process_times(user_mode(get_irq_regs())); +#endif + profile_tick(CPU_PROFILING); + + /* + * If we have an externally synchronized Linux clock, then update + * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be + * called as close as possible to 500 ms before the new second starts. + */ + + if (ntp_synced() && + xtime.tv_sec > last_rtc_update + 660 && + (xtime.tv_nsec / NSEC_PER_USEC) >= + 500000 - ((unsigned)TICK_SIZE) / 2 + && (xtime.tv_nsec / NSEC_PER_USEC) <= + 500000 + ((unsigned)TICK_SIZE) / 2) { + if (set_rtc_mmss(xtime.tv_sec) == 0) + last_rtc_update = xtime.tv_sec; + else + /* Do it again in 60s. */ + last_rtc_update = xtime.tv_sec - 600; + } + write_sequnlock(&xtime_lock); + return IRQ_HANDLED; +} + +void __init time_init(void) +{ + time_t secs_since_1970 = (365 * 37 + 9) * 24 * 60 * 60; /* 1 Jan 2007 */ + +#ifdef CONFIG_RTC_DRV_BFIN + /* [#2663] hack to filter junk RTC values that would cause + * userspace to have to deal with time values greater than + * 2^31 seconds (which uClibc cannot cope with yet) + */ + if ((bfin_read_RTC_STAT() & 0xC0000000) == 0xC0000000) { + printk(KERN_NOTICE "bfin-rtc: invalid date; resetting\n"); + bfin_write_RTC_STAT(0); + } +#endif + + /* Initialize xtime. From now on, xtime is updated with timer interrupts */ + xtime.tv_sec = secs_since_1970; + xtime.tv_nsec = 0; + + wall_to_monotonic.tv_sec = -xtime.tv_sec; + + time_sched_init(timer_interrupt); +} + +#ifndef CONFIG_GENERIC_TIME +void do_gettimeofday(struct timeval *tv) +{ + unsigned long flags; + unsigned long seq; + unsigned long usec, sec; + + do { + seq = read_seqbegin_irqsave(&xtime_lock, flags); + usec = gettimeoffset(); + sec = xtime.tv_sec; + usec += (xtime.tv_nsec / NSEC_PER_USEC); + } + while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); + + while (usec >= USEC_PER_SEC) { + usec -= USEC_PER_SEC; + sec++; + } + + tv->tv_sec = sec; + tv->tv_usec = usec; +} +EXPORT_SYMBOL(do_gettimeofday); + +int do_settimeofday(struct timespec *tv) +{ + time_t wtm_sec, sec = tv->tv_sec; + long wtm_nsec, nsec = tv->tv_nsec; + + if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) + return -EINVAL; + + write_seqlock_irq(&xtime_lock); + /* + * This is revolting. We need to set the xtime.tv_usec + * correctly. However, the value in this location is + * is value at the last tick. + * Discover what correction gettimeofday + * would have done, and then undo it! + */ + nsec -= (gettimeoffset() * NSEC_PER_USEC); + + wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec); + wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec); + + set_normalized_timespec(&xtime, sec, nsec); + set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec); + + ntp_clear(); + + write_sequnlock_irq(&xtime_lock); + clock_was_set(); + + return 0; +} +EXPORT_SYMBOL(do_settimeofday); +#endif /* !CONFIG_GENERIC_TIME */ + +/* + * Scheduler clock - returns current time in nanosec units. + */ +unsigned long long sched_clock(void) +{ + return (unsigned long long)jiffies *(NSEC_PER_SEC / HZ); +} diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c new file mode 100644 index 0000000..9556b73 --- /dev/null +++ b/arch/blackfin/kernel/traps.c @@ -0,0 +1,649 @@ +/* + * File: arch/blackfin/kernel/traps.c + * Based on: + * Author: Hamish Macdonald + * + * Created: + * Description: uses S/W interrupt 15 for the system calls + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <asm/uaccess.h> +#include <asm/traps.h> +#include <asm/cacheflush.h> +#include <asm/blackfin.h> +#include <asm/uaccess.h> +#include <asm/irq_handler.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/kallsyms.h> + +#ifdef CONFIG_KGDB +# include <linux/debugger.h> +# include <linux/kgdb.h> +#endif + +/* Initiate the event table handler */ +void __init trap_init(void) +{ + CSYNC(); + bfin_write_EVT3(trap); + CSYNC(); +} + +asmlinkage void trap_c(struct pt_regs *fp); + +int kstack_depth_to_print = 48; + +static int printk_address(unsigned long address) +{ + struct vm_list_struct *vml; + struct task_struct *p; + struct mm_struct *mm; + +#ifdef CONFIG_KALLSYMS + unsigned long offset = 0, symsize; + const char *symname; + char *modname; + char *delim = ":"; + char namebuf[128]; + + /* look up the address and see if we are in kernel space */ + symname = kallsyms_lookup(address, &symsize, &offset, &modname, namebuf); + + if (symname) { + /* yeah! kernel space! */ + if (!modname) + modname = delim = ""; + return printk("<0x%p> { %s%s%s%s + 0x%lx }", + (void*)address, delim, modname, delim, symname, + (unsigned long)offset); + + } +#endif + + /* looks like we're off in user-land, so let's walk all the + * mappings of all our processes and see if we can't be a whee + * bit more specific + */ + write_lock_irq(&tasklist_lock); + for_each_process(p) { + mm = get_task_mm(p); + if (!mm) + continue; + + vml = mm->context.vmlist; + while (vml) { + struct vm_area_struct *vma = vml->vma; + + if (address >= vma->vm_start && address < vma->vm_end) { + char *name = p->comm; + struct file *file = vma->vm_file; + if (file) { + char _tmpbuf[256]; + name = d_path(file->f_dentry, + file->f_vfsmnt, + _tmpbuf, + sizeof(_tmpbuf)); + } + + write_unlock_irq(&tasklist_lock); + return printk("<0x%p> [ %s + 0x%lx ]", + (void*)address, name, + (unsigned long) + ((address - vma->vm_start) + + (vma->vm_pgoff << PAGE_SHIFT))); + } + + vml = vml->next; + } + } + write_unlock_irq(&tasklist_lock); + + /* we were unable to find this address anywhere */ + return printk("[<0x%p>]", (void*)address); +} + +#define trace_buffer_save(x) \ + do { \ + (x) = bfin_read_TBUFCTL(); \ + bfin_write_TBUFCTL((x) & ~TBUFEN); \ + } while (0) +#define trace_buffer_restore(x) \ + do { \ + bfin_write_TBUFCTL((x)); \ + } while (0) + +asmlinkage void trap_c(struct pt_regs *fp) +{ + int j, sig = 0; + siginfo_t info; + unsigned long trapnr = fp->seqstat & SEQSTAT_EXCAUSE; + +#ifdef CONFIG_KGDB +# define CHK_DEBUGGER_TRAP() do { CHK_DEBUGGER(trapnr, sig, info.si_code, fp,); } while (0) +# define CHK_DEBUGGER_TRAP_MAYBE() do { if (kgdb_connected) CHK_DEBUGGER_TRAP(); } while (0) +#else +# define CHK_DEBUGGER_TRAP() do { } while (0) +# define CHK_DEBUGGER_TRAP_MAYBE() do { } while (0) +#endif + + trace_buffer_save(j); + + /* trap_c() will be called for exceptions. During exceptions + * processing, the pc value should be set with retx value. + * With this change we can cleanup some code in signal.c- TODO + */ + fp->orig_pc = fp->retx; + /* printk("exception: 0x%x, ipend=%x, reti=%x, retx=%x\n", + trapnr, fp->ipend, fp->pc, fp->retx); */ + + /* send the appropriate signal to the user program */ + switch (trapnr) { + + /* This table works in conjuction with the one in ./mach-common/entry.S + * Some exceptions are handled there (in assembly, in exception space) + * Some are handled here, (in C, in interrupt space) + * Some, like CPLB, are handled in both, where the normal path is + * handled in assembly/exception space, and the error path is handled + * here + */ + + /* 0x00 - Linux Syscall, getting here is an error */ + /* 0x01 - userspace gdb breakpoint, handled here */ + case VEC_EXCPT01: + info.si_code = TRAP_ILLTRAP; + sig = SIGTRAP; + CHK_DEBUGGER_TRAP_MAYBE(); + /* Check if this is a breakpoint in kernel space */ + if (fp->ipend & 0xffc0) + return; + else + break; +#ifdef CONFIG_KGDB + case VEC_EXCPT02 : /* gdb connection */ + info.si_code = TRAP_ILLTRAP; + sig = SIGTRAP; + CHK_DEBUGGER_TRAP(); + return; +#else + /* 0x02 - User Defined, Caught by default */ +#endif + /* 0x03 - Atomic test and set */ + case VEC_EXCPT03: + info.si_code = SEGV_STACKFLOW; + sig = SIGSEGV; + printk(KERN_EMERG EXC_0x03); + CHK_DEBUGGER_TRAP(); + break; + /* 0x04 - spinlock - handled by _ex_spinlock, + getting here is an error */ + /* 0x05 - User Defined, Caught by default */ + /* 0x06 - User Defined, Caught by default */ + /* 0x07 - User Defined, Caught by default */ + /* 0x08 - User Defined, Caught by default */ + /* 0x09 - User Defined, Caught by default */ + /* 0x0A - User Defined, Caught by default */ + /* 0x0B - User Defined, Caught by default */ + /* 0x0C - User Defined, Caught by default */ + /* 0x0D - User Defined, Caught by default */ + /* 0x0E - User Defined, Caught by default */ + /* 0x0F - User Defined, Caught by default */ + /* 0x10 HW Single step, handled here */ + case VEC_STEP: + info.si_code = TRAP_STEP; + sig = SIGTRAP; + CHK_DEBUGGER_TRAP_MAYBE(); + /* Check if this is a single step in kernel space */ + if (fp->ipend & 0xffc0) + return; + else + break; + /* 0x11 - Trace Buffer Full, handled here */ + case VEC_OVFLOW: + info.si_code = TRAP_TRACEFLOW; + sig = SIGTRAP; + printk(KERN_EMERG EXC_0x11); + CHK_DEBUGGER_TRAP(); + break; + /* 0x12 - Reserved, Caught by default */ + /* 0x13 - Reserved, Caught by default */ + /* 0x14 - Reserved, Caught by default */ + /* 0x15 - Reserved, Caught by default */ + /* 0x16 - Reserved, Caught by default */ + /* 0x17 - Reserved, Caught by default */ + /* 0x18 - Reserved, Caught by default */ + /* 0x19 - Reserved, Caught by default */ + /* 0x1A - Reserved, Caught by default */ + /* 0x1B - Reserved, Caught by default */ + /* 0x1C - Reserved, Caught by default */ + /* 0x1D - Reserved, Caught by default */ + /* 0x1E - Reserved, Caught by default */ + /* 0x1F - Reserved, Caught by default */ + /* 0x20 - Reserved, Caught by default */ + /* 0x21 - Undefined Instruction, handled here */ + case VEC_UNDEF_I: + info.si_code = ILL_ILLOPC; + sig = SIGILL; + printk(KERN_EMERG EXC_0x21); + CHK_DEBUGGER_TRAP(); + break; + /* 0x22 - Illegal Instruction Combination, handled here */ + case VEC_ILGAL_I: + info.si_code = ILL_ILLPARAOP; + sig = SIGILL; + printk(KERN_EMERG EXC_0x22); + CHK_DEBUGGER_TRAP(); + break; + /* 0x23 - Data CPLB Protection Violation, + normal case is handled in _cplb_hdr */ + case VEC_CPLB_VL: + info.si_code = ILL_CPLB_VI; + sig = SIGILL; + printk(KERN_EMERG EXC_0x23); + CHK_DEBUGGER_TRAP(); + break; + /* 0x24 - Data access misaligned, handled here */ + case VEC_MISALI_D: + info.si_code = BUS_ADRALN; + sig = SIGBUS; + printk(KERN_EMERG EXC_0x24); + CHK_DEBUGGER_TRAP(); + break; + /* 0x25 - Unrecoverable Event, handled here */ + case VEC_UNCOV: + info.si_code = ILL_ILLEXCPT; + sig = SIGILL; + printk(KERN_EMERG EXC_0x25); + CHK_DEBUGGER_TRAP(); + break; + /* 0x26 - Data CPLB Miss, normal case is handled in _cplb_hdr, + error case is handled here */ + case VEC_CPLB_M: + info.si_code = BUS_ADRALN; + sig = SIGBUS; + printk(KERN_EMERG EXC_0x26); + CHK_DEBUGGER_TRAP(); + break; + /* 0x27 - Data CPLB Multiple Hits - Linux Trap Zero, handled here */ + case VEC_CPLB_MHIT: + info.si_code = ILL_CPLB_MULHIT; +#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO + sig = SIGSEGV; + printk(KERN_EMERG "\n\nNULL pointer access (probably)\n"); +#else + sig = SIGILL; + printk(KERN_EMERG EXC_0x27); +#endif + CHK_DEBUGGER_TRAP(); + break; + /* 0x28 - Emulation Watchpoint, handled here */ + case VEC_WATCH: + info.si_code = TRAP_WATCHPT; + sig = SIGTRAP; + pr_debug(EXC_0x28); + CHK_DEBUGGER_TRAP_MAYBE(); + /* Check if this is a watchpoint in kernel space */ + if (fp->ipend & 0xffc0) + return; + else + break; +#ifdef CONFIG_BF535 + /* 0x29 - Instruction fetch access error (535 only) */ + case VEC_ISTRU_VL: /* ADSP-BF535 only (MH) */ + info.si_code = BUS_OPFETCH; + sig = SIGBUS; + printk(KERN_EMERG "BF535: VEC_ISTRU_VL\n"); + CHK_DEBUGGER_TRAP(); + break; +#else + /* 0x29 - Reserved, Caught by default */ +#endif + /* 0x2A - Instruction fetch misaligned, handled here */ + case VEC_MISALI_I: + info.si_code = BUS_ADRALN; + sig = SIGBUS; + printk(KERN_EMERG EXC_0x2A); + CHK_DEBUGGER_TRAP(); + break; + /* 0x2B - Instruction CPLB protection Violation, + handled in _cplb_hdr */ + case VEC_CPLB_I_VL: + info.si_code = ILL_CPLB_VI; + sig = SIGILL; + printk(KERN_EMERG EXC_0x2B); + CHK_DEBUGGER_TRAP(); + break; + /* 0x2C - Instruction CPLB miss, handled in _cplb_hdr */ + case VEC_CPLB_I_M: + info.si_code = ILL_CPLB_MISS; + sig = SIGBUS; + printk(KERN_EMERG EXC_0x2C); + CHK_DEBUGGER_TRAP(); + break; + /* 0x2D - Instruction CPLB Multiple Hits, handled here */ + case VEC_CPLB_I_MHIT: + info.si_code = ILL_CPLB_MULHIT; +#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO + sig = SIGSEGV; + printk(KERN_EMERG "\n\nJump to address 0 - 0x0fff\n"); +#else + sig = SIGILL; + printk(KERN_EMERG EXC_0x2D); +#endif + CHK_DEBUGGER_TRAP(); + break; + /* 0x2E - Illegal use of Supervisor Resource, handled here */ + case VEC_ILL_RES: + info.si_code = ILL_PRVOPC; + sig = SIGILL; + printk(KERN_EMERG EXC_0x2E); + CHK_DEBUGGER_TRAP(); + break; + /* 0x2F - Reserved, Caught by default */ + /* 0x30 - Reserved, Caught by default */ + /* 0x31 - Reserved, Caught by default */ + /* 0x32 - Reserved, Caught by default */ + /* 0x33 - Reserved, Caught by default */ + /* 0x34 - Reserved, Caught by default */ + /* 0x35 - Reserved, Caught by default */ + /* 0x36 - Reserved, Caught by default */ + /* 0x37 - Reserved, Caught by default */ + /* 0x38 - Reserved, Caught by default */ + /* 0x39 - Reserved, Caught by default */ + /* 0x3A - Reserved, Caught by default */ + /* 0x3B - Reserved, Caught by default */ + /* 0x3C - Reserved, Caught by default */ + /* 0x3D - Reserved, Caught by default */ + /* 0x3E - Reserved, Caught by default */ + /* 0x3F - Reserved, Caught by default */ + default: + info.si_code = TRAP_ILLTRAP; + sig = SIGTRAP; + printk(KERN_EMERG "Caught Unhandled Exception, code = %08lx\n", + (fp->seqstat & SEQSTAT_EXCAUSE)); + CHK_DEBUGGER_TRAP(); + break; + } + + info.si_signo = sig; + info.si_errno = 0; + info.si_addr = (void *)fp->pc; + force_sig_info(sig, &info, current); + if (sig != 0 && sig != SIGTRAP) { + unsigned long stack; + dump_bfin_regs(fp, (void *)fp->retx); + dump_bfin_trace_buffer(); + show_stack(current, &stack); + if (current->mm == NULL) + panic("Kernel exception"); + } + + /* if the address that we are about to return to is not valid, set it + * to a valid address, if we have a current application or panic + */ + if (!(fp->pc <= physical_mem_end +#if L1_CODE_LENGTH != 0 + || (fp->pc >= L1_CODE_START && + fp->pc <= (L1_CODE_START + L1_CODE_LENGTH)) +#endif + )) { + if (current->mm) { + fp->pc = current->mm->start_code; + } else { + printk(KERN_EMERG "I can't return to memory that doesn't exist - bad things happen\n"); + panic("Help - I've fallen and can't get up\n"); + } + } + + trace_buffer_restore(j); + return; +} + +/* Typical exception handling routines */ + +void dump_bfin_trace_buffer(void) +{ + int tflags; + trace_buffer_save(tflags); + + if (likely(bfin_read_TBUFSTAT() & TBUFCNT)) { + int i; + printk(KERN_EMERG "Hardware Trace:\n"); + for (i = 0; bfin_read_TBUFSTAT() & TBUFCNT; i++) { + printk(KERN_EMERG "%2i Target : ", i); + printk_address((unsigned long)bfin_read_TBUF()); + printk("\n" KERN_EMERG " Source : "); + printk_address((unsigned long)bfin_read_TBUF()); + printk("\n"); + } + } + + trace_buffer_restore(tflags); +} +EXPORT_SYMBOL(dump_bfin_trace_buffer); + +static void show_trace(struct task_struct *tsk, unsigned long *sp) +{ + unsigned long addr; + + printk("\nCall Trace:"); +#ifdef CONFIG_KALLSYMS + printk("\n"); +#endif + + while (!kstack_end(sp)) { + addr = *sp++; + /* + * If the address is either in the text segment of the + * kernel, or in the region which contains vmalloc'ed + * memory, it *may* be the address of a calling + * routine; if so, print it so that someone tracing + * down the cause of the crash will be able to figure + * out the call path that was taken. + */ + if (kernel_text_address(addr)) + print_ip_sym(addr); + } + + printk("\n"); +} + +void show_stack(struct task_struct *task, unsigned long *stack) +{ + unsigned long *endstack, addr; + int i; + + /* Cannot call dump_bfin_trace_buffer() here as show_stack() is + * called externally in some places in the kernel. + */ + + if (!stack) { + if (task) + stack = (unsigned long *)task->thread.ksp; + else + stack = (unsigned long *)&stack; + } + + addr = (unsigned long)stack; + endstack = (unsigned long *)PAGE_ALIGN(addr); + + printk(KERN_EMERG "Stack from %08lx:", (unsigned long)stack); + for (i = 0; i < kstack_depth_to_print; i++) { + if (stack + 1 > endstack) + break; + if (i % 8 == 0) + printk("\n" KERN_EMERG " "); + printk(" %08lx", *stack++); + } + + show_trace(task, stack); +} + +void dump_stack(void) +{ + unsigned long stack; + int tflags; + trace_buffer_save(tflags); + dump_bfin_trace_buffer(); + show_stack(current, &stack); + trace_buffer_restore(tflags); +} + +EXPORT_SYMBOL(dump_stack); + +void dump_bfin_regs(struct pt_regs *fp, void *retaddr) +{ + if (current->pid) { + printk("\nCURRENT PROCESS:\n\n"); + printk("COMM=%s PID=%d\n", current->comm, current->pid); + } else { + printk + ("\nNo Valid pid - Either things are really messed up, or you are in the kernel\n"); + } + + if (current->mm) { + printk("TEXT = 0x%p-0x%p DATA = 0x%p-0x%p\n" + "BSS = 0x%p-0x%p USER-STACK = 0x%p\n\n", + (void*)current->mm->start_code, + (void*)current->mm->end_code, + (void*)current->mm->start_data, + (void*)current->mm->end_data, + (void*)current->mm->end_data, + (void*)current->mm->brk, + (void*)current->mm->start_stack); + } + + printk("return address: 0x%p; contents of [PC-16...PC+8]:\n", retaddr); + if (retaddr != 0 && retaddr <= (void*)physical_mem_end +#if L1_CODE_LENGTH != 0 + /* FIXME: Copy the code out of L1 Instruction SRAM through dma + memcpy. */ + && !(retaddr >= (void*)L1_CODE_START + && retaddr < (void*)(L1_CODE_START + L1_CODE_LENGTH)) +#endif + ) { + int i = 0; + unsigned short x = 0; + for (i = -16; i < 8; i++) { + if (get_user(x, (unsigned short *)retaddr + i)) + break; +#ifndef CONFIG_DEBUG_HWERR + /* If one of the last few instructions was a STI + * it is likily that the error occured awhile ago + * and we just noticed + */ + if (x >= 0x0040 && x <= 0x0047 && i <= 0) + panic("\n\nWARNING : You should reconfigure the kernel to turn on\n" + " 'Hardware error interrupt debugging'\n" + " The rest of this error is meanless\n"); +#endif + + if (i == -8) + printk("\n"); + if (i == 0) + printk("X\n"); + printk("%04x ", x); + } + } else + printk("Cannot look at the [PC] for it is in unreadable L1 SRAM - sorry\n"); + + printk("\n\n"); + + printk("RETE: %08lx RETN: %08lx RETX: %08lx RETS: %08lx\n", + fp->rete, fp->retn, fp->retx, fp->rets); + printk("IPEND: %04lx SYSCFG: %04lx\n", fp->ipend, fp->syscfg); + printk("SEQSTAT: %08lx SP: %08lx\n", (long)fp->seqstat, (long)fp); + printk("R0: %08lx R1: %08lx R2: %08lx R3: %08lx\n", + fp->r0, fp->r1, fp->r2, fp->r3); + printk("R4: %08lx R5: %08lx R6: %08lx R7: %08lx\n", + fp->r4, fp->r5, fp->r6, fp->r7); + printk("P0: %08lx P1: %08lx P2: %08lx P3: %08lx\n", + fp->p0, fp->p1, fp->p2, fp->p3); + printk("P4: %08lx P5: %08lx FP: %08lx\n", fp->p4, fp->p5, fp->fp); + printk("A0.w: %08lx A0.x: %08lx A1.w: %08lx A1.x: %08lx\n", + fp->a0w, fp->a0x, fp->a1w, fp->a1x); + + printk("LB0: %08lx LT0: %08lx LC0: %08lx\n", fp->lb0, fp->lt0, + fp->lc0); + printk("LB1: %08lx LT1: %08lx LC1: %08lx\n", fp->lb1, fp->lt1, + fp->lc1); + printk("B0: %08lx L0: %08lx M0: %08lx I0: %08lx\n", fp->b0, fp->l0, + fp->m0, fp->i0); + printk("B1: %08lx L1: %08lx M1: %08lx I1: %08lx\n", fp->b1, fp->l1, + fp->m1, fp->i1); + printk("B2: %08lx L2: %08lx M2: %08lx I2: %08lx\n", fp->b2, fp->l2, + fp->m2, fp->i2); + printk("B3: %08lx L3: %08lx M3: %08lx I3: %08lx\n", fp->b3, fp->l3, + fp->m3, fp->i3); + + printk("\nUSP: %08lx ASTAT: %08lx\n", rdusp(), fp->astat); + if ((long)fp->seqstat & SEQSTAT_EXCAUSE) { + printk(KERN_EMERG "DCPLB_FAULT_ADDR=%p\n", (void*)bfin_read_DCPLB_FAULT_ADDR()); + printk(KERN_EMERG "ICPLB_FAULT_ADDR=%p\n", (void*)bfin_read_ICPLB_FAULT_ADDR()); + } + + printk("\n\n"); +} + +#ifdef CONFIG_SYS_BFIN_SPINLOCK_L1 +asmlinkage int sys_bfin_spinlock(int *spinlock)__attribute__((l1_text)); +#endif + +asmlinkage int sys_bfin_spinlock(int *spinlock) +{ + int ret = 0; + int tmp = 0; + + local_irq_disable(); + ret = get_user(tmp, spinlock); + if (ret == 0) { + if (tmp) + ret = 1; + tmp = 1; + put_user(tmp, spinlock); + } + local_irq_enable(); + return ret; +} + +void panic_cplb_error(int cplb_panic, struct pt_regs *fp) +{ + switch (cplb_panic) { + case CPLB_NO_UNLOCKED: + printk(KERN_EMERG "All CPLBs are locked\n"); + break; + case CPLB_PROT_VIOL: + return; + case CPLB_NO_ADDR_MATCH: + return; + case CPLB_UNKNOWN_ERR: + printk(KERN_EMERG "Unknown CPLB Exception\n"); + break; + } + + printk(KERN_EMERG "DCPLB_FAULT_ADDR=%p\n", (void*)bfin_read_DCPLB_FAULT_ADDR()); + printk(KERN_EMERG "ICPLB_FAULT_ADDR=%p\n", (void*)bfin_read_ICPLB_FAULT_ADDR()); + dump_bfin_regs(fp, (void *)fp->retx); + dump_stack(); + panic("Unrecoverable event\n"); +} diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S new file mode 100644 index 0000000..6ae9ebb --- /dev/null +++ b/arch/blackfin/kernel/vmlinux.lds.S @@ -0,0 +1,228 @@ +/* + * File: arch/blackfin/kernel/vmlinux.lds.S + * Based on: none - original work + * Author: + * + * Created: Tue Sep 21 2004 + * Description: Master linker script for blackfin architecture + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#define VMLINUX_SYMBOL(_sym_) _##_sym_ + +#include <asm-generic/vmlinux.lds.h> +#include <asm/mem_map.h> + + +OUTPUT_FORMAT("elf32-bfin") +ENTRY(__start) +_jiffies = _jiffies_64; + +MEMORY +{ + ram : ORIGIN = CONFIG_BOOT_LOAD, LENGTH = (CONFIG_MEM_SIZE * 1024 * 1024) - (CONFIG_BOOT_LOAD) + l1_data_a : ORIGIN = L1_DATA_A_START, LENGTH = L1_DATA_A_LENGTH + l1_data_b : ORIGIN = L1_DATA_B_START, LENGTH = L1_DATA_B_LENGTH + l1_code : ORIGIN = L1_CODE_START, LENGTH = L1_CODE_LENGTH + l1_scratch : ORIGIN = L1_SCRATCH_START, LENGTH = L1_SCRATCH_LENGTH +} + +SECTIONS +{ + . = CONFIG_BOOT_LOAD; + + .text : + { + _text = .; + __stext = .; + *(.text) + SCHED_TEXT + *(.text.lock) + . = ALIGN(16); + ___start___ex_table = .; + *(__ex_table) + ___stop___ex_table = .; + + *($code) + *(.rodata) + *(.rodata.*) + *(__vermagic) /* Kernel version magic */ + *(.rodata1) + *(.fixup) + *(.spinlock.text) + + /* Kernel symbol table: Normal symbols */ + . = ALIGN(4); + ___start___ksymtab = .; + *(__ksymtab) + ___stop___ksymtab = .; + + /* Kernel symbol table: GPL-only symbols */ + ___start___ksymtab_gpl = .; + *(__ksymtab_gpl) + ___stop___ksymtab_gpl = .; + + /* Kernel symbol table: Normal unused symbols */ \ + ___start___ksymtab_unused = .; + *(__ksymtab_unused) + ___stop___ksymtab_unused = .; + + /* Kernel symbol table: GPL-only unused symbols */ + ___start___ksymtab_unused_gpl = .; + *(__ksymtab_unused_gpl) + ___stop___ksymtab_unused_gpl = .; + + + /* Kernel symbol table: GPL-future symbols */ + ___start___ksymtab_gpl_future = .; + *(__ksymtab_gpl_future) + ___stop___ksymtab_gpl_future = .; + + /* Kernel symbol table: Normal symbols */ + ___start___kcrctab = .; + *(__kcrctab) + ___stop___kcrctab = .; + + /* Kernel symbol table: GPL-only symbols */ + ___start___kcrctab_gpl = .; + *(__kcrctab_gpl) + ___stop___kcrctab_gpl = .; + + /* Kernel symbol table: GPL-future symbols */ + ___start___kcrctab_gpl_future = .; + *(__kcrctab_gpl_future) + ___stop___kcrctab_gpl_future = .; + + /* Kernel symbol table: strings */ + *(__ksymtab_strings) + + . = ALIGN(4); + __etext = .; + } > ram + + .init : + { + . = ALIGN(4096); + ___init_begin = .; + __sinittext = .; + *(.init.text) + __einittext = .; + *(.init.data) + . = ALIGN(16); + ___setup_start = .; + *(.init.setup) + ___setup_end = .; + ___start___param = .; + *(__param) + ___stop___param = .; + ___initcall_start = .; + INITCALLS + ___initcall_end = .; + ___con_initcall_start = .; + *(.con_initcall.init) + ___con_initcall_end = .; + ___security_initcall_start = .; + *(.security_initcall.init) + ___security_initcall_end = .; + . = ALIGN(4); + ___initramfs_start = .; + *(.init.ramfs) + ___initramfs_end = .; + . = ALIGN(4); + ___init_end = .; + } > ram + + __l1_lma_start = .; + + .text_l1 : + { + . = ALIGN(4); + __stext_l1 = .; + *(.l1.text) + + . = ALIGN(4); + __etext_l1 = .; + } > l1_code AT > ram + + .data_l1 : + { + . = ALIGN(4); + __sdata_l1 = .; + *(.l1.data) + __edata_l1 = .; + + . = ALIGN(4); + __sbss_l1 = .; + *(.l1.bss) + + . = ALIGN(32); + *(.data_l1.cacheline_aligned) + + . = ALIGN(4); + __ebss_l1 = .; + } > l1_data_a AT > ram + .data_b_l1 : + { + . = ALIGN(4); + __sdata_b_l1 = .; + *(.l1.data.B) + __edata_b_l1 = .; + + . = ALIGN(4); + __sbss_b_l1 = .; + *(.l1.bss.B) + + . = ALIGN(4); + __ebss_b_l1 = .; + } > l1_data_b AT > ram + + .data : + { + __sdata = .; + . = ALIGN(0x2000); + *(.data.init_task) + *(.data) + + . = ALIGN(32); + *(.data.cacheline_aligned) + + . = ALIGN(0x2000); + __edata = .; + } > ram + + /DISCARD/ : { /* Exit code and data*/ + *(.exit.text) + *(.exit.data) + *(.exitcall.exit) + } > ram + + .bss : + { + . = ALIGN(4); + ___bss_start = .; + *(.bss) + *(COMMON) + . = ALIGN(4); + ___bss_stop = .; + __end = . ; + } > ram +} diff --git a/arch/blackfin/lib/Makefile b/arch/blackfin/lib/Makefile new file mode 100644 index 0000000..635288f --- /dev/null +++ b/arch/blackfin/lib/Makefile @@ -0,0 +1,11 @@ +# +# arch/blackfin/lib/Makefile +# + +lib-y := \ + ashldi3.o ashrdi3.o lshrdi3.o \ + muldi3.o divsi3.o udivsi3.o modsi3.o umodsi3.o \ + checksum.o memcpy.o memset.o memcmp.o memchr.o memmove.o \ + strcmp.o strcpy.o strncmp.o strncpy.o \ + umulsi3_highpart.o smulsi3_highpart.o \ + ins.o outs.o diff --git a/arch/blackfin/lib/ashldi3.c b/arch/blackfin/lib/ashldi3.c new file mode 100644 index 0000000..a8c279e --- /dev/null +++ b/arch/blackfin/lib/ashldi3.c @@ -0,0 +1,58 @@ +/* + * File: arch/blackfin/lib/ashldi3.c + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "gcclib.h" + +#ifdef CONFIG_ARITHMETIC_OPS_L1 +DItype __ashldi3(DItype u, word_type b)__attribute__((l1_text)); +#endif + +DItype __ashldi3(DItype u, word_type b) +{ + DIunion w; + word_type bm; + DIunion uu; + + if (b == 0) + return u; + + uu.ll = u; + + bm = (sizeof(SItype) * BITS_PER_UNIT) - b; + if (bm <= 0) { + w.s.low = 0; + w.s.high = (USItype) uu.s.low << -bm; + } else { + USItype carries = (USItype) uu.s.low >> bm; + w.s.low = (USItype) uu.s.low << b; + w.s.high = ((USItype) uu.s.high << b) | carries; + } + + return w.ll; +} diff --git a/arch/blackfin/lib/ashrdi3.c b/arch/blackfin/lib/ashrdi3.c new file mode 100644 index 0000000..a0d3419 --- /dev/null +++ b/arch/blackfin/lib/ashrdi3.c @@ -0,0 +1,59 @@ +/* + * File: arch/blackfin/lib/ashrdi3.c + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "gcclib.h" + +#ifdef CONFIG_ARITHMETIC_OPS_L1 +DItype __ashrdi3(DItype u, word_type b)__attribute__((l1_text)); +#endif + +DItype __ashrdi3(DItype u, word_type b) +{ + DIunion w; + word_type bm; + DIunion uu; + + if (b == 0) + return u; + + uu.ll = u; + + bm = (sizeof(SItype) * BITS_PER_UNIT) - b; + if (bm <= 0) { + /* w.s.high = 1..1 or 0..0 */ + w.s.high = uu.s.high >> (sizeof(SItype) * BITS_PER_UNIT - 1); + w.s.low = uu.s.high >> -bm; + } else { + USItype carries = (USItype) uu.s.high << bm; + w.s.high = uu.s.high >> b; + w.s.low = ((USItype) uu.s.low >> b) | carries; + } + + return w.ll; +} diff --git a/arch/blackfin/lib/checksum.c b/arch/blackfin/lib/checksum.c new file mode 100644 index 0000000..42768e0 --- /dev/null +++ b/arch/blackfin/lib/checksum.c @@ -0,0 +1,140 @@ +/* + * File: arch/blackfin/lib/checksum.c + * Based on: none - original work + * Author: + * + * Created: + * Description: An implementation of the TCP/IP protocol suite for the LINUX + * operating system. INET is implemented using the BSD Socket + * interface as the means of communication with the user level. + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <net/checksum.h> +#include <asm/checksum.h> + +#ifdef CONFIG_IP_CHECKSUM_L1 +static unsigned short do_csum(const unsigned char *buff, int len)__attribute__((l1_text)); +#endif + +static unsigned short do_csum(const unsigned char *buff, int len) +{ + register unsigned long sum = 0; + int swappem = 0; + + if (1 & (unsigned long)buff) { + sum = *buff << 8; + buff++; + len--; + ++swappem; + } + + while (len > 1) { + sum += *(unsigned short *)buff; + buff += 2; + len -= 2; + } + + if (len > 0) + sum += *buff; + + /* Fold 32-bit sum to 16 bits */ + while (sum >> 16) + sum = (sum & 0xffff) + (sum >> 16); + + if (swappem) + sum = ((sum & 0xff00) >> 8) + ((sum & 0x00ff) << 8); + + return sum; + +} + +/* + * This is a version of ip_compute_csum() optimized for IP headers, + * which always checksum on 4 octet boundaries. + */ +unsigned short ip_fast_csum(unsigned char *iph, unsigned int ihl) +{ + return ~do_csum(iph, ihl * 4); +} + +/* + * computes the checksum of a memory block at buff, length len, + * and adds in "sum" (32-bit) + * + * returns a 32-bit number suitable for feeding into itself + * or csum_tcpudp_magic + * + * this function must be called with even lengths, except + * for the last fragment, which may be odd + * + * it's best to have buff aligned on a 32-bit boundary + */ +unsigned int csum_partial(const unsigned char *buff, int len, unsigned int sum) +{ + /* + * Just in case we get nasty checksum data... + * Like 0xffff6ec3 in the case of our IPv6 multicast header. + * We fold to begin with, as well as at the end. + */ + sum = (sum & 0xffff) + (sum >> 16); + + sum += do_csum(buff, len); + + sum = (sum & 0xffff) + (sum >> 16); + + return sum; +} + +/* + * this routine is used for miscellaneous IP-like checksums, mainly + * in icmp.c + */ +unsigned short ip_compute_csum(const unsigned char *buff, int len) +{ + return ~do_csum(buff, len); +} + +/* + * copy from fs while checksumming, otherwise like csum_partial + */ + +unsigned int +csum_partial_copy_from_user(const unsigned char *src, unsigned char *dst, + int len, int sum, int *csum_err) +{ + if (csum_err) + *csum_err = 0; + memcpy(dst, src, len); + return csum_partial(dst, len, sum); +} + +/* + * copy from ds while checksumming, otherwise like csum_partial + */ + +unsigned int csum_partial_copy(const unsigned char *src, unsigned char *dst, + int len, int sum) +{ + memcpy(dst, src, len); + return csum_partial(dst, len, sum); +} diff --git a/arch/blackfin/lib/divsi3.S b/arch/blackfin/lib/divsi3.S new file mode 100644 index 0000000..3e29861 --- /dev/null +++ b/arch/blackfin/lib/divsi3.S @@ -0,0 +1,216 @@ +/* + * File: arch/blackfin/lib/divsi3.S + * Based on: + * Author: + * + * Created: + * Description: 16 / 32 bit signed division. + * Special cases : + * 1) If(numerator == 0) + * return 0 + * 2) If(denominator ==0) + * return positive max = 0x7fffffff + * 3) If(numerator == denominator) + * return 1 + * 4) If(denominator ==1) + * return numerator + * 5) If(denominator == -1) + * return -numerator + * + * Operand : R0 - Numerator (i) + * R1 - Denominator (i) + * R0 - Quotient (o) + * Registers Used : R2-R7,P0-P2 + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +.global ___divsi3; + +#ifdef CONFIG_ARITHMETIC_OPS_L1 +.section .l1.text +#else +.text +#endif + +.align 2; +___divsi3 : + + + R3 = R0 ^ R1; + R0 = ABS R0; + + CC = V; + + r3 = rot r3 by -1; + r1 = abs r1; /* now both positive, r3.30 means "negate result", + ** r3.31 means overflow, add one to result + */ + cc = r0 < r1; + if cc jump .Lret_zero; + r2 = r1 >> 15; + cc = r2; + if cc jump .Lidents; + r2 = r1 << 16; + cc = r2 <= r0; + if cc jump .Lidents; + + DIVS(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + DIVQ(R0, R1); + + R0 = R0.L (Z); + r1 = r3 >> 31; /* add overflow issue back in */ + r0 = r0 + r1; + r1 = -r0; + cc = bittst(r3, 30); + if cc r0 = r1; + RTS; + +/* Can't use the primitives. Test common identities. +** If the identity is true, return the value in R2. +*/ + +.Lidents: + CC = R1 == 0; /* check for divide by zero */ + IF CC JUMP .Lident_return; + + CC = R0 == 0; /* check for division of zero */ + IF CC JUMP .Lzero_return; + + CC = R0 == R1; /* check for identical operands */ + IF CC JUMP .Lident_return; + + CC = R1 == 1; /* check for divide by 1 */ + IF CC JUMP .Lident_return; + + R2.L = ONES R1; + R2 = R2.L (Z); + CC = R2 == 1; + IF CC JUMP .Lpower_of_two; + + /* Identities haven't helped either. + ** Perform the full division process. + */ + + P1 = 31; /* Set loop counter */ + + [--SP] = (R7:5); /* Push registers R5-R7 */ + R2 = -R1; + [--SP] = R2; + R2 = R0 << 1; /* R2 lsw of dividend */ + R6 = R0 ^ R1; /* Get sign */ + R5 = R6 >> 31; /* Shift sign to LSB */ + + R0 = 0 ; /* Clear msw partial remainder */ + R2 = R2 | R5; /* Shift quotient bit */ + R6 = R0 ^ R1; /* Get new quotient bit */ + + LSETUP(.Llst,.Llend) LC0 = P1; /* Setup loop */ +.Llst: R7 = R2 >> 31; /* record copy of carry from R2 */ + R2 = R2 << 1; /* Shift 64 bit dividend up by 1 bit */ + R0 = R0 << 1 || R5 = [SP]; + R0 = R0 | R7; /* and add carry */ + CC = R6 < 0; /* Check quotient(AQ) */ + /* we might be subtracting divisor (AQ==0) */ + IF CC R5 = R1; /* or we might be adding divisor (AQ==1)*/ + R0 = R0 + R5; /* do add or subtract, as indicated by AQ */ + R6 = R0 ^ R1; /* Generate next quotient bit */ + R5 = R6 >> 31; + /* Assume AQ==1, shift in zero */ + BITTGL(R5,0); /* tweak AQ to be what we want to shift in */ +.Llend: R2 = R2 + R5; /* and then set shifted-in value to + ** tweaked AQ. + */ + r1 = r3 >> 31; + r2 = r2 + r1; + cc = bittst(r3,30); + r0 = -r2; + if !cc r0 = r2; + SP += 4; + (R7:5)= [SP++]; /* Pop registers R6-R7 */ + RTS; + +.Lident_return: + CC = R1 == 0; /* check for divide by zero => 0x7fffffff */ + R2 = -1 (X); + R2 >>= 1; + IF CC JUMP .Ltrue_ident_return; + + CC = R0 == R1; /* check for identical operands => 1 */ + R2 = 1 (Z); + IF CC JUMP .Ltrue_ident_return; + + R2 = R0; /* assume divide by 1 => numerator */ + /*FALLTHRU*/ + +.Ltrue_ident_return: + R0 = R2; /* Return an identity value */ + R2 = -R2; + CC = bittst(R3,30); + IF CC R0 = R2; +.Lzero_return: + RTS; /* ...including zero */ + +.Lpower_of_two: + /* Y has a single bit set, which means it's a power of two. + ** That means we can perform the division just by shifting + ** X to the right the appropriate number of bits + */ + + /* signbits returns the number of sign bits, minus one. + ** 1=>30, 2=>29, ..., 0x40000000=>0. Which means we need + ** to shift right n-signbits spaces. It also means 0x80000000 + ** is a special case, because that *also* gives a signbits of 0 + */ + + R2 = R0 >> 31; + CC = R1 < 0; + IF CC JUMP .Ltrue_ident_return; + + R1.l = SIGNBITS R1; + R1 = R1.L (Z); + R1 += -30; + R0 = LSHIFT R0 by R1.L; + r1 = r3 >> 31; + r0 = r0 + r1; + R2 = -R0; // negate result if necessary + CC = bittst(R3,30); + IF CC R0 = R2; + RTS; + +.Lret_zero: + R0 = 0; + RTS; diff --git a/arch/blackfin/lib/gcclib.h b/arch/blackfin/lib/gcclib.h new file mode 100644 index 0000000..9ccd39a --- /dev/null +++ b/arch/blackfin/lib/gcclib.h @@ -0,0 +1,47 @@ +/* + * File: arch/blackfin/lib/gcclib.h + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#define BITS_PER_UNIT 8 +#define SI_TYPE_SIZE (sizeof (SItype) * BITS_PER_UNIT) + +typedef unsigned int UQItype __attribute__ ((mode(QI))); +typedef int SItype __attribute__ ((mode(SI))); +typedef unsigned int USItype __attribute__ ((mode(SI))); +typedef int DItype __attribute__ ((mode(DI))); +typedef int word_type __attribute__ ((mode(__word__))); +typedef unsigned int UDItype __attribute__ ((mode(DI))); + +struct DIstruct { + SItype low, high; +}; + +typedef union { + struct DIstruct s; + DItype ll; +} DIunion; diff --git a/arch/blackfin/lib/ins.S b/arch/blackfin/lib/ins.S new file mode 100644 index 0000000..730d2b4 --- /dev/null +++ b/arch/blackfin/lib/ins.S @@ -0,0 +1,69 @@ +/* + * File: arch/blackfin/lib/ins.S + * Based on: + * Author: Bas Vermeulen <bas@buyways.nl> + * + * Created: Tue Mar 22 15:27:24 CEST 2005 + * Description: Implementation of ins{bwl} for BlackFin processors using zero overhead loops. + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * Copyright (C) 2005 Bas Vermeulen, BuyWays BV <bas@buyways.nl> + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> + +.align 2 + +ENTRY(_insl) + P0 = R0; /* P0 = port */ + cli R3; + P1 = R1; /* P1 = address */ + P2 = R2; /* P2 = count */ + SSYNC; + LSETUP( .Llong_loop_s, .Llong_loop_e) LC0 = P2; +.Llong_loop_s: R0 = [P0]; +.Llong_loop_e: [P1++] = R0; + sti R3; + RTS; + +ENTRY(_insw) + P0 = R0; /* P0 = port */ + cli R3; + P1 = R1; /* P1 = address */ + P2 = R2; /* P2 = count */ + SSYNC; + LSETUP( .Lword_loop_s, .Lword_loop_e) LC0 = P2; +.Lword_loop_s: R0 = W[P0]; +.Lword_loop_e: W[P1++] = R0; + sti R3; + RTS; + +ENTRY(_insb) + P0 = R0; /* P0 = port */ + cli R3; + P1 = R1; /* P1 = address */ + P2 = R2; /* P2 = count */ + SSYNC; + LSETUP( .Lbyte_loop_s, .Lbyte_loop_e) LC0 = P2; +.Lbyte_loop_s: R0 = B[P0]; +.Lbyte_loop_e: B[P1++] = R0; + sti R3; + RTS; diff --git a/arch/blackfin/lib/lshrdi3.c b/arch/blackfin/lib/lshrdi3.c new file mode 100644 index 0000000..84b9c55 --- /dev/null +++ b/arch/blackfin/lib/lshrdi3.c @@ -0,0 +1,72 @@ +/* + * File: arch/blackfin/lib/lshrdi3.c + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#define BITS_PER_UNIT 8 + +typedef int SItype __attribute__ ((mode(SI))); +typedef unsigned int USItype __attribute__ ((mode(SI))); +typedef int DItype __attribute__ ((mode(DI))); +typedef int word_type __attribute__ ((mode(__word__))); + +struct DIstruct { + SItype high, low; +}; + +typedef union { + struct DIstruct s; + DItype ll; +} DIunion; + +#ifdef CONFIG_ARITHMETIC_OPS_L1 +DItype __lshrdi3(DItype u, word_type b)__attribute__((l1_text)); +#endif + +DItype __lshrdi3(DItype u, word_type b) +{ + DIunion w; + word_type bm; + DIunion uu; + + if (b == 0) + return u; + + uu.ll = u; + + bm = (sizeof(SItype) * BITS_PER_UNIT) - b; + if (bm <= 0) { + w.s.high = 0; + w.s.low = (USItype) uu.s.high >> -bm; + } else { + USItype carries = (USItype) uu.s.high << bm; + w.s.high = (USItype) uu.s.high >> b; + w.s.low = ((USItype) uu.s.low >> b) | carries; + } + + return w.ll; +} diff --git a/arch/blackfin/lib/memchr.S b/arch/blackfin/lib/memchr.S new file mode 100644 index 0000000..4981222 --- /dev/null +++ b/arch/blackfin/lib/memchr.S @@ -0,0 +1,70 @@ +/* + * File: arch/blackfin/lib/memchr.S + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> + +/* void *memchr(const void *s, int c, size_t n); + * R0 = address (s) + * R1 = sought byte (c) + * R2 = count (n) + * + * Returns pointer to located character. + */ + +.text + +.align 2 + +ENTRY(_memchr) + P0 = R0; /* P0 = address */ + P2 = R2; /* P2 = count */ + R1 = R1.B(Z); + CC = R2 == 0; + IF CC JUMP .Lfailed; + +.Lbytes: + LSETUP (.Lbyte_loop_s, .Lbyte_loop_e) LC0=P2; + +.Lbyte_loop_s: + R3 = B[P0++](Z); + CC = R3 == R1; + IF CC JUMP .Lfound; +.Lbyte_loop_e: + NOP; + +.Lfailed: + R0=0; + RTS; + +.Lfound: + R0 = P0; + R0 += -1; + RTS; + +.size _memchr,.-_memchr diff --git a/arch/blackfin/lib/memcmp.S b/arch/blackfin/lib/memcmp.S new file mode 100644 index 0000000..5b95023 --- /dev/null +++ b/arch/blackfin/lib/memcmp.S @@ -0,0 +1,110 @@ +/* + * File: arch/blackfin/lib/memcmp.S + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> + +/* int memcmp(const void *s1, const void *s2, size_t n); + * R0 = First Address (s1) + * R1 = Second Address (s2) + * R2 = count (n) + * + * Favours word aligned data. + */ + +.text + +.align 2 + +ENTRY(_memcmp) + I1 = P3; + P0 = R0; /* P0 = s1 address */ + P3 = R1; /* P3 = s2 Address */ + P2 = R2 ; /* P2 = count */ + CC = R2 <= 7(IU); + IF CC JUMP .Ltoo_small; + I0 = R1; /* s2 */ + R1 = R1 | R0; /* OR addresses together */ + R1 <<= 30; /* check bottom two bits */ + CC = AZ; /* AZ set if zero. */ + IF !CC JUMP .Lbytes ; /* Jump if addrs not aligned. */ + + P1 = P2 >> 2; /* count = n/4 */ + R3 = 3; + R2 = R2 & R3; /* remainder */ + P2 = R2; /* set remainder */ + + LSETUP (.Lquad_loop_s, .Lquad_loop_e) LC0=P1; +.Lquad_loop_s: + MNOP || R0 = [P0++] || R1 = [I0++]; + CC = R0 == R1; + IF !CC JUMP .Lquad_different; +.Lquad_loop_e: + NOP; + + P3 = I0; /* s2 */ +.Ltoo_small: + CC = P2 == 0; /* Check zero count*/ + IF CC JUMP .Lfinished; /* very unlikely*/ + +.Lbytes: + LSETUP (.Lbyte_loop_s, .Lbyte_loop_e) LC0=P2; +.Lbyte_loop_s: + R1 = B[P3++](Z); /* *s2 */ + R0 = B[P0++](Z); /* *s1 */ + CC = R0 == R1; + IF !CC JUMP .Ldifferent; +.Lbyte_loop_e: + NOP; + +.Ldifferent: + R0 = R0 - R1; + P3 = I1; + RTS; + +.Lquad_different: + /* We've read two quads which don't match. + * Can't just compare them, because we're + * a little-endian machine, so the MSBs of + * the regs occur at later addresses in the + * string. + * Arrange to re-read those two quads again, + * byte-by-byte. + */ + P0 += -4; /* back up to the start of the */ + P3 = I0; /* quads, and increase the*/ + P2 += 4; /* remainder count*/ + P3 += -4; + JUMP .Lbytes; + +.Lfinished: + R0 = 0; + P3 = I1; + RTS; + +.size _memcmp,.-_memcmp diff --git a/arch/blackfin/lib/memcpy.S b/arch/blackfin/lib/memcpy.S new file mode 100644 index 0000000..c1e00ef --- /dev/null +++ b/arch/blackfin/lib/memcpy.S @@ -0,0 +1,142 @@ +/* + * File: arch/blackfin/lib/memcpy.S + * Based on: + * Author: + * + * Created: + * Description: internal version of memcpy(), issued by the compiler + * to copy blocks of data around. + * This is really memmove() - it has to be able to deal with + * possible overlaps, because that ambiguity is when the compiler + * gives up and calls a function. We have our own, internal version + * so that we get something we trust, even if the user has redefined + * the normal symbol. + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> + +/* void *memcpy(void *dest, const void *src, size_t n); + * R0 = To Address (dest) (leave unchanged to form result) + * R1 = From Address (src) + * R2 = count + * + * Note: Favours word alignment + */ + +#ifdef CONFIG_MEMCPY_L1 +.section .l1.text +#else +.text +#endif + +.align 2 + +ENTRY(_memcpy) + CC = R2 <= 0; /* length not positive? */ + IF CC JUMP .L_P1L2147483647; /* Nothing to do */ + + P0 = R0 ; /* dst*/ + P1 = R1 ; /* src*/ + P2 = R2 ; /* length */ + + /* check for overlapping data */ + CC = R1 < R0; /* src < dst */ + IF !CC JUMP .Lno_overlap; + R3 = R1 + R2; + CC = R0 < R3; /* and dst < src+len */ + IF CC JUMP .Lhas_overlap; + +.Lno_overlap: + /* Check for aligned data.*/ + + R3 = R1 | R0; + R0 = 0x3; + R3 = R3 & R0; + CC = R3; /* low bits set on either address? */ + IF CC JUMP .Lnot_aligned; + + /* Both addresses are word-aligned, so we can copy + at least part of the data using word copies.*/ + P2 = P2 >> 2; + CC = P2 <= 2; + IF !CC JUMP .Lmore_than_seven; + /* less than eight bytes... */ + P2 = R2; + LSETUP(.Lthree_start, .Lthree_end) LC0=P2; + R0 = R1; /* setup src address for return */ +.Lthree_start: + R3 = B[P1++] (X); +.Lthree_end: + B[P0++] = R3; + + RTS; + +.Lmore_than_seven: + /* There's at least eight bytes to copy. */ + P2 += -1; /* because we unroll one iteration */ + LSETUP(.Lword_loop, .Lword_loop) LC0=P2; + R0 = R1; + I1 = P1; + R3 = [I1++]; +.Lword_loop: + MNOP || [P0++] = R3 || R3 = [I1++]; + + [P0++] = R3; + /* Any remaining bytes to copy? */ + R3 = 0x3; + R3 = R2 & R3; + CC = R3 == 0; + P1 = I1; /* in case there's something left, */ + IF !CC JUMP .Lbytes_left; + RTS; +.Lbytes_left: P2 = R3; +.Lnot_aligned: + /* From here, we're copying byte-by-byte. */ + LSETUP (.Lbyte_start, .Lbyte_end) LC0=P2; + R0 = R1; /* Save src address for return */ +.Lbyte_start: + R1 = B[P1++] (X); +.Lbyte_end: + B[P0++] = R1; + +.L_P1L2147483647: + RTS; + +.Lhas_overlap: + /* Need to reverse the copying, because the + * dst would clobber the src. + * Don't bother to work out alignment for + * the reverse case. + */ + R0 = R1; /* save src for later. */ + P0 = P0 + P2; + P0 += -1; + P1 = P1 + P2; + P1 += -1; + LSETUP(.Lover_start, .Lover_end) LC0=P2; +.Lover_start: + R1 = B[P1--] (X); +.Lover_end: + B[P0--] = R1; + + RTS; diff --git a/arch/blackfin/lib/memmove.S b/arch/blackfin/lib/memmove.S new file mode 100644 index 0000000..2e5fb7f --- /dev/null +++ b/arch/blackfin/lib/memmove.S @@ -0,0 +1,103 @@ +/* + * File: arch/blackfin/lib/memmove.S + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> + +.align 2 + +/* + * C Library function MEMMOVE + * R0 = To Address (leave unchanged to form result) + * R1 = From Address + * R2 = count + * Data may overlap + */ + +ENTRY(_memmove) + I1 = P3; + P0 = R0; /* P0 = To address */ + P3 = R1; /* P3 = From Address */ + P2 = R2; /* P2 = count */ + CC = P2 == 0; /* Check zero count*/ + IF CC JUMP .Lfinished; /* very unlikely */ + + CC = R1 < R0 (IU); /* From < To */ + IF !CC JUMP .Lno_overlap; + R3 = R1 + R2; + CC = R0 <= R3 (IU); /* (From+len) >= To */ + IF CC JUMP .Loverlap; +.Lno_overlap: + R3 = 11; + CC = R2 <= R3; + IF CC JUMP .Lbytes; + R3 = R1 | R0; /* OR addresses together */ + R3 <<= 30; /* check bottom two bits */ + CC = AZ; /* AZ set if zero.*/ + IF !CC JUMP .Lbytes; /* Jump if addrs not aligned.*/ + + I0 = P3; + P1 = P2 >> 2; /* count = n/4 */ + P1 += -1; + R3 = 3; + R2 = R2 & R3; /* remainder */ + P2 = R2; /* set remainder */ + R1 = [I0++]; + + LSETUP (.Lquad_loop, .Lquad_loop) LC0=P1; +.Lquad_loop: MNOP || [P0++] = R1 || R1 = [I0++]; + [P0++] = R1; + + CC = P2 == 0; /* any remaining bytes? */ + P3 = I0; /* Ammend P3 to updated ptr. */ + IF !CC JUMP .Lbytes; + P3 = I1; + RTS; + +.Lbytes: LSETUP (.Lbyte2_s, .Lbyte2_e) LC0=P2; +.Lbyte2_s: R1 = B[P3++](Z); +.Lbyte2_e: B[P0++] = R1; + +.Lfinished: P3 = I1; + RTS; + +.Loverlap: + P2 += -1; + P0 = P0 + P2; + P3 = P3 + P2; + R1 = B[P3--] (Z); + CC = P2 == 0; + IF CC JUMP .Lno_loop; + LSETUP (.Lol_s, .Lol_e) LC0 = P2; +.Lol_s: B[P0--] = R1; +.Lol_e: R1 = B[P3--] (Z); +.Lno_loop: B[P0] = R1; + P3 = I1; + RTS; + +.size _memmove,.-_memmove diff --git a/arch/blackfin/lib/memset.S b/arch/blackfin/lib/memset.S new file mode 100644 index 0000000..ba6d047 --- /dev/null +++ b/arch/blackfin/lib/memset.S @@ -0,0 +1,109 @@ +/* + * File: arch/blackfin/lib/memset.S + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> + +.align 2 + +#ifdef CONFIG_MEMSET_L1 +.section .l1.text +#else +.text +#endif + +/* + * C Library function MEMSET + * R0 = address (leave unchanged to form result) + * R1 = filler byte + * R2 = count + * Favours word aligned data. + */ + +ENTRY(_memset) + P0 = R0 ; /* P0 = address */ + P2 = R2 ; /* P2 = count */ + R3 = R0 + R2; /* end */ + CC = R2 <= 7(IU); + IF CC JUMP .Ltoo_small; + R1 = R1.B (Z); /* R1 = fill char */ + R2 = 3; + R2 = R0 & R2; /* addr bottom two bits */ + CC = R2 == 0; /* AZ set if zero. */ + IF !CC JUMP .Lforce_align ; /* Jump if addr not aligned. */ + +.Laligned: + P1 = P2 >> 2; /* count = n/4 */ + R2 = R1 << 8; /* create quad filler */ + R2.L = R2.L + R1.L(NS); + R2.H = R2.L + R1.H(NS); + P2 = R3; + + LSETUP (.Lquad_loop , .Lquad_loop) LC0=P1; +.Lquad_loop: + [P0++] = R2; + + CC = P0 == P2; + IF !CC JUMP .Lbytes_left; + RTS; + +.Lbytes_left: + R2 = R3; /* end point */ + R3 = P0; /* current position */ + R2 = R2 - R3; /* bytes left */ + P2 = R2; + +.Ltoo_small: + CC = P2 == 0; /* Check zero count */ + IF CC JUMP .Lfinished; /* Unusual */ + +.Lbytes: + LSETUP (.Lbyte_loop , .Lbyte_loop) LC0=P2; +.Lbyte_loop: + B[P0++] = R1; + +.Lfinished: + RTS; + +.Lforce_align: + CC = BITTST (R0, 0); /* odd byte */ + R0 = 4; + R0 = R0 - R2; + P1 = R0; + R0 = P0; /* Recover return address */ + IF !CC JUMP .Lskip1; + B[P0++] = R1; +.Lskip1: + CC = R2 <= 2; /* 2 bytes */ + P2 -= P1; /* reduce count */ + IF !CC JUMP .Laligned; + B[P0++] = R1; + B[P0++] = R1; + JUMP .Laligned; + +.size _memset,.-_memset diff --git a/arch/blackfin/lib/modsi3.S b/arch/blackfin/lib/modsi3.S new file mode 100644 index 0000000..528b8b1 --- /dev/null +++ b/arch/blackfin/lib/modsi3.S @@ -0,0 +1,79 @@ +/* + * File: arch/blackfin/lib/modsi3.S + * Based on: + * Author: + * + * Created: + * Description: This program computes 32 bit signed remainder. It calls div32 function + * for quotient estimation. + * + * Registers used : + * Numerator/ Denominator in R0, R1 + * R0 - returns remainder. + * R2-R7 + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +.global ___modsi3; +.type ___modsi3, STT_FUNC; +.extern ___divsi3; +.type ___divsi3, STT_FUNC; + +#ifdef CONFIG_ARITHMETIC_OPS_L1 +.section .l1.text +#else +.text +#endif + +___modsi3: + + CC=R0==0; + IF CC JUMP .LRETURN_R0; /* Return 0, if numerator == 0 */ + CC=R1==0; + IF CC JUMP .LRETURN_ZERO; /* Return 0, if denominator == 0 */ + CC=R0==R1; + IF CC JUMP .LRETURN_ZERO; /* Return 0, if numerator == denominator */ + CC = R1 == 1; + IF CC JUMP .LRETURN_ZERO; /* Return 0, if denominator == 1 */ + CC = R1 == -1; + IF CC JUMP .LRETURN_ZERO; /* Return 0, if denominator == -1 */ + + /* Valid input. Use __divsi3() to compute the quotient, and then + * derive the remainder from that. */ + + [--SP] = (R7:6); /* Push R7 and R6 */ + [--SP] = RETS; /* and return address */ + R7 = R0; /* Copy of R0 */ + R6 = R1; /* Save for later */ + SP += -12; /* Should always provide this space */ + CALL ___divsi3; /* Compute signed quotient using ___divsi3()*/ + SP += 12; + R0 *= R6; /* Quotient * divisor */ + R0 = R7 - R0; /* Dividend - (quotient * divisor) */ + RETS = [SP++]; /* Get back return address */ + (R7:6) = [SP++]; /* Pop registers R7 and R4 */ + RTS; /* Store remainder */ + +.LRETURN_ZERO: + R0 = 0; +.LRETURN_R0: + RTS; diff --git a/arch/blackfin/lib/muldi3.c b/arch/blackfin/lib/muldi3.c new file mode 100644 index 0000000..303d0c6 --- /dev/null +++ b/arch/blackfin/lib/muldi3.c @@ -0,0 +1,99 @@ +/* + * File: arch/blackfin/lib/muldi3.c + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef SI_TYPE_SIZE +#define SI_TYPE_SIZE 32 +#endif +#define __ll_b (1L << (SI_TYPE_SIZE / 2)) +#define __ll_lowpart(t) ((usitype) (t) % __ll_b) +#define __ll_highpart(t) ((usitype) (t) / __ll_b) +#define BITS_PER_UNIT 8 + +#if !defined(umul_ppmm) +#define umul_ppmm(w1, w0, u, v) \ + do { \ + usitype __x0, __x1, __x2, __x3; \ + usitype __ul, __vl, __uh, __vh; \ + \ + __ul = __ll_lowpart (u); \ + __uh = __ll_highpart (u); \ + __vl = __ll_lowpart (v); \ + __vh = __ll_highpart (v); \ + \ + __x0 = (usitype) __ul * __vl; \ + __x1 = (usitype) __ul * __vh; \ + __x2 = (usitype) __uh * __vl; \ + __x3 = (usitype) __uh * __vh; \ + \ + __x1 += __ll_highpart (__x0);/* this can't give carry */ \ + __x1 += __x2; /* but this indeed can */ \ + if (__x1 < __x2) /* did we get it? */ \ + __x3 += __ll_b; /* yes, add it in the proper pos. */ \ + \ + (w1) = __x3 + __ll_highpart (__x1); \ + (w0) = __ll_lowpart (__x1) * __ll_b + __ll_lowpart (__x0); \ + } while (0) +#endif + +#if !defined(__umulsidi3) +#define __umulsidi3(u, v) \ + ({diunion __w; \ + umul_ppmm (__w.s.high, __w.s.low, u, v); \ + __w.ll; }) +#endif + +typedef unsigned int usitype __attribute__ ((mode(SI))); +typedef int sitype __attribute__ ((mode(SI))); +typedef int ditype __attribute__ ((mode(DI))); +typedef int word_type __attribute__ ((mode(__word__))); + +struct distruct { + sitype low, high; +}; +typedef union { + struct distruct s; + ditype ll; +} diunion; + +#ifdef CONFIG_ARITHMETIC_OPS_L1 +ditype __muldi3(ditype u, ditype v)__attribute__((l1_text)); +#endif + +ditype __muldi3(ditype u, ditype v) +{ + diunion w; + diunion uu, vv; + + uu.ll = u, vv.ll = v; + w.ll = __umulsidi3(uu.s.low, vv.s.low); + w.s.high += ((usitype) uu.s.low * (usitype) vv.s.high + + (usitype) uu.s.high * (usitype) vv.s.low); + + return w.ll; +} diff --git a/arch/blackfin/lib/outs.S b/arch/blackfin/lib/outs.S new file mode 100644 index 0000000..f8c876f --- /dev/null +++ b/arch/blackfin/lib/outs.S @@ -0,0 +1,62 @@ +/* + * File: arch/blackfin/lib/outs.S + * Based on: + * Author: Bas Vermeulen <bas@buyways.nl> + * + * Created: Tue Mar 22 15:27:24 CEST 2005 + * Description: Implementation of outs{bwl} for BlackFin processors using zero overhead loops. + * + * Modified: Copyright (C) 2005 Bas Vermeulen, BuyWays BV <bas@buyways.nl> + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> + +.align 2 + +ENTRY(_outsl) + P0 = R0; /* P0 = port */ + P1 = R1; /* P1 = address */ + P2 = R2; /* P2 = count */ + + LSETUP( .Llong_loop_s, .Llong_loop_e) LC0 = P2; +.Llong_loop_s: R0 = [P1++]; +.Llong_loop_e: [P0] = R0; + RTS; + +ENTRY(_outsw) + P0 = R0; /* P0 = port */ + P1 = R1; /* P1 = address */ + P2 = R2; /* P2 = count */ + + LSETUP( .Lword_loop_s, .Lword_loop_e) LC0 = P2; +.Lword_loop_s: R0 = W[P1++]; +.Lword_loop_e: W[P0] = R0; + RTS; + +ENTRY(_outsb) + P0 = R0; /* P0 = port */ + P1 = R1; /* P1 = address */ + P2 = R2; /* P2 = count */ + + LSETUP( .Lbyte_loop_s, .Lbyte_loop_e) LC0 = P2; +.Lbyte_loop_s: R0 = B[P1++]; +.Lbyte_loop_e: B[P0] = R0; + RTS; diff --git a/arch/blackfin/lib/smulsi3_highpart.S b/arch/blackfin/lib/smulsi3_highpart.S new file mode 100644 index 0000000..10b8f8d --- /dev/null +++ b/arch/blackfin/lib/smulsi3_highpart.S @@ -0,0 +1,30 @@ +.align 2 +.global ___smulsi3_highpart; +.type ___smulsi3_highpart, STT_FUNC; + +#ifdef CONFIG_ARITHMETIC_OPS_L1 +.section .l1.text +#else +.text +#endif + +___smulsi3_highpart: + R2 = R1.L * R0.L (FU); + R3 = R1.H * R0.L (IS,M); + R0 = R0.H * R1.H, R1 = R0.H * R1.L (IS,M); + + R1.L = R2.H + R1.L; + cc = ac0; + R2 = cc; + + R1.L = R1.L + R3.L; + cc = ac0; + R1 >>>= 16; + R3 >>>= 16; + R1 = R1 + R3; + R1 = R1 + R2; + R2 = cc; + R1 = R1 + R2; + + R0 = R0 + R1; + RTS; diff --git a/arch/blackfin/lib/strcmp.c b/arch/blackfin/lib/strcmp.c new file mode 100644 index 0000000..2ad47c4 --- /dev/null +++ b/arch/blackfin/lib/strcmp.c @@ -0,0 +1,11 @@ +#include <linux/types.h> + +#define strcmp __inline_strcmp +#include <asm/string.h> +#undef strcmp + +int strcmp(const char *dest, const char *src) +{ + return __inline_strcmp(dest, src); +} + diff --git a/arch/blackfin/lib/strcpy.c b/arch/blackfin/lib/strcpy.c new file mode 100644 index 0000000..4dc835a --- /dev/null +++ b/arch/blackfin/lib/strcpy.c @@ -0,0 +1,11 @@ +#include <linux/types.h> + +#define strcpy __inline_strcpy +#include <asm/string.h> +#undef strcpy + +char *strcpy(char *dest, const char *src) +{ + return __inline_strcpy(dest, src); +} + diff --git a/arch/blackfin/lib/strncmp.c b/arch/blackfin/lib/strncmp.c new file mode 100644 index 0000000..947bcfe --- /dev/null +++ b/arch/blackfin/lib/strncmp.c @@ -0,0 +1,11 @@ +#include <linux/types.h> + +#define strncmp __inline_strncmp +#include <asm/string.h> +#undef strncmp + +int strncmp(const char *cs, const char *ct, size_t count) +{ + return __inline_strncmp(cs, ct, count); +} + diff --git a/arch/blackfin/lib/strncpy.c b/arch/blackfin/lib/strncpy.c new file mode 100644 index 0000000..77a9b2e --- /dev/null +++ b/arch/blackfin/lib/strncpy.c @@ -0,0 +1,11 @@ +#include <linux/types.h> + +#define strncpy __inline_strncpy +#include <asm/string.h> +#undef strncpy + +char *strncpy(char *dest, const char *src, size_t n) +{ + return __inline_strncpy(dest, src, n); +} + diff --git a/arch/blackfin/lib/udivsi3.S b/arch/blackfin/lib/udivsi3.S new file mode 100644 index 0000000..d39a129 --- /dev/null +++ b/arch/blackfin/lib/udivsi3.S @@ -0,0 +1,298 @@ +/* + * File: arch/blackfin/lib/udivsi3.S + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> + +#define CARRY AC0 + +#ifdef CONFIG_ARITHMETIC_OPS_L1 +.section .l1.text +#else +.text +#endif + + +ENTRY(___udivsi3) + + CC = R0 < R1 (IU); /* If X < Y, always return 0 */ + IF CC JUMP .Lreturn_ident; + + R2 = R1 << 16; + CC = R2 <= R0 (IU); + IF CC JUMP .Lidents; + + R2 = R0 >> 31; /* if X is a 31-bit number */ + R3 = R1 >> 15; /* and Y is a 15-bit number */ + R2 = R2 | R3; /* then it's okay to use the DIVQ builtins (fallthrough to fast)*/ + CC = R2; + IF CC JUMP .Ly_16bit; + +/* METHOD 1: FAST DIVQ + We know we have a 31-bit dividend, and 15-bit divisor so we can use the + simple divq approach (first setting AQ to 0 - implying unsigned division, + then 16 DIVQ's). +*/ + + AQ = CC; /* Clear AQ (CC==0) */ + +/* ISR States: When dividing two integers (32.0/16.0) using divide primitives, + we need to shift the dividend one bit to the left. + We have already checked that we have a 31-bit number so we are safe to do + that. +*/ + R0 <<= 1; + DIVQ(R0, R1); // 1 + DIVQ(R0, R1); // 2 + DIVQ(R0, R1); // 3 + DIVQ(R0, R1); // 4 + DIVQ(R0, R1); // 5 + DIVQ(R0, R1); // 6 + DIVQ(R0, R1); // 7 + DIVQ(R0, R1); // 8 + DIVQ(R0, R1); // 9 + DIVQ(R0, R1); // 10 + DIVQ(R0, R1); // 11 + DIVQ(R0, R1); // 12 + DIVQ(R0, R1); // 13 + DIVQ(R0, R1); // 14 + DIVQ(R0, R1); // 15 + DIVQ(R0, R1); // 16 + R0 = R0.L (Z); + RTS; + +.Ly_16bit: + /* We know that the upper 17 bits of Y might have bits set, + ** or that the sign bit of X might have a bit. If Y is a + ** 16-bit number, but not bigger, then we can use the builtins + ** with a post-divide correction. + ** R3 currently holds Y>>15, which means R3's LSB is the + ** bit we're interested in. + */ + + /* According to the ISR, to use the Divide primitives for + ** unsigned integer divide, the useable range is 31 bits + */ + CC = ! BITTST(R0, 31); + + /* IF condition is true we can scale our inputs and use the divide primitives, + ** with some post-adjustment + */ + R3 += -1; /* if so, Y is 0x00008nnn */ + CC &= AZ; + + /* If condition is true we can scale our inputs and use the divide primitives, + ** with some post-adjustment + */ + R3 = R1 >> 1; /* Pre-scaled divisor for primitive case */ + R2 = R0 >> 16; + + R2 = R3 - R2; /* shifted divisor < upper 16 bits of dividend */ + CC &= CARRY; + IF CC JUMP .Lshift_and_correct; + + /* Fall through to the identities */ + +/* METHOD 2: identities and manual calculation + We are not able to use the divide primites, but may still catch some special + cases. +*/ +.Lidents: + /* Test for common identities. Value to be returned is placed in R2. */ + CC = R0 == 0; /* 0/Y => 0 */ + IF CC JUMP .Lreturn_r0; + CC = R0 == R1; /* X==Y => 1 */ + IF CC JUMP .Lreturn_ident; + CC = R1 == 1; /* X/1 => X */ + IF CC JUMP .Lreturn_ident; + + R2.L = ONES R1; + R2 = R2.L (Z); + CC = R2 == 1; + IF CC JUMP .Lpower_of_two; + + [--SP] = (R7:5); /* Push registers R5-R7 */ + + /* Idents don't match. Go for the full operation. */ + + + R6 = 2; /* assume we'll shift two */ + R3 = 1; + + P2 = R1; + /* If either R0 or R1 have sign set, */ + /* divide them by two, and note it's */ + /* been done. */ + CC = R1 < 0; + R2 = R1 >> 1; + IF CC R1 = R2; /* Possibly-shifted R1 */ + IF !CC R6 = R3; /* R1 doesn't, so at most 1 shifted */ + + P0 = 0; + R3 = -R1; + [--SP] = R3; + R2 = R0 >> 1; + R2 = R0 >> 1; + CC = R0 < 0; + IF CC P0 = R6; /* Number of values divided */ + IF !CC R2 = R0; /* Shifted R0 */ + + /* P0 is 0, 1 (NR/=2) or 2 (NR/=2, DR/=2) */ + + /* r2 holds Copy dividend */ + R3 = 0; /* Clear partial remainder */ + R7 = 0; /* Initialise quotient bit */ + + P1 = 32; /* Set loop counter */ + LSETUP(.Lulst, .Lulend) LC0 = P1; /* Set loop counter */ +.Lulst: R6 = R2 >> 31; /* R6 = sign bit of R2, for carry */ + R2 = R2 << 1; /* Shift 64 bit dividend up by 1 bit */ + R3 = R3 << 1 || R5 = [SP]; + R3 = R3 | R6; /* Include any carry */ + CC = R7 < 0; /* Check quotient(AQ) */ + /* If AQ==0, we'll sub divisor */ + IF CC R5 = R1; /* and if AQ==1, we'll add it. */ + R3 = R3 + R5; /* Add/sub divsor to partial remainder */ + R7 = R3 ^ R1; /* Generate next quotient bit */ + + R5 = R7 >> 31; /* Get AQ */ + BITTGL(R5, 0); /* Invert it, to get what we'll shift */ +.Lulend: R2 = R2 + R5; /* and "shift" it in. */ + + CC = P0 == 0; /* Check how many inputs we shifted */ + IF CC JUMP .Lno_mult; /* if none... */ + R6 = R2 << 1; + CC = P0 == 1; + IF CC R2 = R6; /* if 1, Q = Q*2 */ + IF !CC R1 = P2; /* if 2, restore stored divisor */ + + R3 = R2; /* Copy of R2 */ + R3 *= R1; /* Q * divisor */ + R5 = R0 - R3; /* Z = (dividend - Q * divisor) */ + CC = R1 <= R5 (IU); /* Check if divisor <= Z? */ + R6 = CC; /* if yes, R6 = 1 */ + R2 = R2 + R6; /* if yes, add one to quotient(Q) */ +.Lno_mult: + SP += 4; + (R7:5) = [SP++]; /* Pop registers R5-R7 */ + R0 = R2; /* Store quotient */ + RTS; + +.Lreturn_ident: + CC = R0 < R1 (IU); /* If X < Y, always return 0 */ + R2 = 0; + IF CC JUMP .Ltrue_return_ident; + R2 = -1 (X); /* X/0 => 0xFFFFFFFF */ + CC = R1 == 0; + IF CC JUMP .Ltrue_return_ident; + R2 = -R2; /* R2 now 1 */ + CC = R0 == R1; /* X==Y => 1 */ + IF CC JUMP .Ltrue_return_ident; + R2 = R0; /* X/1 => X */ + /*FALLTHRU*/ + +.Ltrue_return_ident: + R0 = R2; +.Lreturn_r0: + RTS; + +.Lpower_of_two: + /* Y has a single bit set, which means it's a power of two. + ** That means we can perform the division just by shifting + ** X to the right the appropriate number of bits + */ + + /* signbits returns the number of sign bits, minus one. + ** 1=>30, 2=>29, ..., 0x40000000=>0. Which means we need + ** to shift right n-signbits spaces. It also means 0x80000000 + ** is a special case, because that *also* gives a signbits of 0 + */ + + R2 = R0 >> 31; + CC = R1 < 0; + IF CC JUMP .Ltrue_return_ident; + + R1.l = SIGNBITS R1; + R1 = R1.L (Z); + R1 += -30; + R0 = LSHIFT R0 by R1.L; + RTS; + +/* METHOD 3: PRESCALE AND USE THE DIVIDE PRIMITIVES WITH SOME POST-CORRECTION + Two scaling operations are required to use the divide primitives with a + divisor > 0x7FFFF. + Firstly (as in method 1) we need to shift the dividend 1 to the left for + integer division. + Secondly we need to shift both the divisor and dividend 1 to the right so + both are in range for the primitives. + The left/right shift of the dividend does nothing so we can skip it. +*/ +.Lshift_and_correct: + R2 = R0; + // R3 is already R1 >> 1 + CC=!CC; + AQ = CC; /* Clear AQ, got here with CC = 0 */ + DIVQ(R2, R3); // 1 + DIVQ(R2, R3); // 2 + DIVQ(R2, R3); // 3 + DIVQ(R2, R3); // 4 + DIVQ(R2, R3); // 5 + DIVQ(R2, R3); // 6 + DIVQ(R2, R3); // 7 + DIVQ(R2, R3); // 8 + DIVQ(R2, R3); // 9 + DIVQ(R2, R3); // 10 + DIVQ(R2, R3); // 11 + DIVQ(R2, R3); // 12 + DIVQ(R2, R3); // 13 + DIVQ(R2, R3); // 14 + DIVQ(R2, R3); // 15 + DIVQ(R2, R3); // 16 + + /* According to the Instruction Set Reference: + To divide by a divisor > 0x7FFF, + 1. prescale and perform divide to obtain quotient (Q) (done above), + 2. multiply quotient by unscaled divisor (result M) + 3. subtract the product from the divident to get an error (E = X - M) + 4. if E < divisor (Y) subtract 1, if E > divisor (Y) add 1, else return quotient (Q) + */ + R3 = R2.L (Z); /* Q = X' / Y' */ + R2 = R3; /* Preserve Q */ + R2 *= R1; /* M = Q * Y */ + R2 = R0 - R2; /* E = X - M */ + R0 = R3; /* Copy Q into result reg */ + +/* Correction: If result of the multiply is negative, we overflowed + and need to correct the result by subtracting 1 from the result.*/ + R3 = 0xFFFF (Z); + R2 = R2 >> 16; /* E >> 16 */ + CC = R2 == R3; + R3 = 1 ; + R1 = R0 - R3; + IF CC R0 = R1; + RTS; diff --git a/arch/blackfin/lib/umodsi3.S b/arch/blackfin/lib/umodsi3.S new file mode 100644 index 0000000..b55ce96 --- /dev/null +++ b/arch/blackfin/lib/umodsi3.S @@ -0,0 +1,66 @@ +/* + * File: arch/blackfin/lib/umodsi3.S + * Based on: + * Author: + * + * Created: + * Description: libgcc1 routines for Blackfin 5xx + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifdef CONFIG_ARITHMETIC_OPS_L1 +.section .l1.text +#else +.text +#endif + +.extern ___udivsi3; +.globl ___umodsi3 +___umodsi3: + + CC=R0==0; + IF CC JUMP .LRETURN_R0; /* Return 0, if NR == 0 */ + CC= R1==0; + IF CC JUMP .LRETURN_ZERO_VAL; /* Return 0, if DR == 0 */ + CC=R0==R1; + IF CC JUMP .LRETURN_ZERO_VAL; /* Return 0, if NR == DR */ + CC = R1 == 1; + IF CC JUMP .LRETURN_ZERO_VAL; /* Return 0, if DR == 1 */ + CC = R0<R1 (IU); + IF CC JUMP .LRETURN_R0; /* Return dividend (R0),IF NR<DR */ + + [--SP] = (R7:6); /* Push registers and */ + [--SP] = RETS; /* Return address */ + R7 = R0; /* Copy of R0 */ + R6 = R1; + SP += -12; /* Should always provide this space */ + CALL ___udivsi3; /* Compute unsigned quotient using ___udiv32()*/ + SP += 12; + R0 *= R6; /* Quotient * divisor */ + R0 = R7 - R0; /* Dividend - (quotient * divisor) */ + RETS = [SP++]; /* Pop return address */ + ( R7:6) = [SP++]; /* And registers */ + RTS; /* Return remainder */ +.LRETURN_ZERO_VAL: + R0 = 0; +.LRETURN_R0: + RTS; diff --git a/arch/blackfin/lib/umulsi3_highpart.S b/arch/blackfin/lib/umulsi3_highpart.S new file mode 100644 index 0000000..aac8218 --- /dev/null +++ b/arch/blackfin/lib/umulsi3_highpart.S @@ -0,0 +1,23 @@ +.align 2 +.global ___umulsi3_highpart; +.type ___umulsi3_highpart, STT_FUNC; + +#ifdef CONFIG_ARITHMETIC_OPS_L1 +.section .l1.text +#else +.text +#endif + +___umulsi3_highpart: + R2 = R1.H * R0.H, R3 = R1.L * R0.H (FU); + R0 = R1.L * R0.L, R1 = R1.H * R0.L (FU); + R0 >>= 16; + /* Unsigned multiplication has the nice property that we can + ignore carry on this first addition. */ + R0 = R0 + R3; + R0 = R0 + R1; + cc = ac0; + R1 = cc; + R1 = PACK(R1.l,R0.h); + R0 = R1 + R2; + RTS; diff --git a/arch/blackfin/mach-bf533/Kconfig b/arch/blackfin/mach-bf533/Kconfig new file mode 100644 index 0000000..14297b3 --- /dev/null +++ b/arch/blackfin/mach-bf533/Kconfig @@ -0,0 +1,92 @@ +if (BF533 || BF532 || BF531) + +menu "BF533/2/1 Specific Configuration" + +comment "Interrupt Priority Assignment" +menu "Priority" + +config UART_ERROR + int "UART ERROR" + default 7 +config SPORT0_ERROR + int "SPORT0 ERROR" + default 7 +config SPI_ERROR + int "SPI ERROR" + default 7 +config SPORT1_ERROR + int "SPORT1 ERROR" + default 7 +config PPI_ERROR + int "PPI ERROR" + default 7 +config DMA_ERROR + int "DMA ERROR" + default 7 +config PLLWAKE_ERROR + int "PLL WAKEUP ERROR" + default 7 + +config RTC_ERROR + int "RTC ERROR" + default 8 +config DMA0_PPI + int "DMA0 PPI" + default 8 + +config DMA1_SPORT0RX + int "DMA1 (SPORT0 RX)" + default 9 +config DMA2_SPORT0TX + int "DMA2 (SPORT0 TX)" + default 9 +config DMA3_SPORT1RX + int "DMA3 (SPORT1 RX)" + default 9 +config DMA4_SPORT1TX + int "DMA4 (SPORT1 TX)" + default 9 +config DMA5_SPI + int "DMA5 (SPI)" + default 10 +config DMA6_UARTRX + int "DMA6 (UART0 RX)" + default 10 +config DMA7_UARTTX + int "DMA7 (UART0 TX)" + default 10 +config TIMER0 + int "TIMER0" + default 11 +config TIMER1 + int "TIMER1" + default 11 +config TIMER2 + int "TIMER2" + default 11 +config PFA + int "PF Interrupt A" + default 12 +config PFB + int "PF Interrupt B" + default 12 +config MEMDMA0 + int "MEMORY DMA0" + default 13 +config MEMDMA1 + int "MEMORY DMA1" + default 13 +config WDTIMER + int "WATCH DOG TIMER" + default 13 + + help + Enter the priority numbers between 7-13 ONLY. Others are Reserved. + This applies to all the above. It is not recommended to assign the + highest priority number 7 to UART or any other device. + +endmenu + +endmenu + +endif diff --git a/arch/blackfin/mach-bf533/Makefile b/arch/blackfin/mach-bf533/Makefile new file mode 100644 index 0000000..76d2c2b --- /dev/null +++ b/arch/blackfin/mach-bf533/Makefile @@ -0,0 +1,9 @@ +# +# arch/blackfin/mach-bf533/Makefile +# + +extra-y := head.o + +obj-y := ints-priority.o + +obj-$(CONFIG_CPU_FREQ_BF533) += cpu.o diff --git a/arch/blackfin/mach-bf533/boards/Makefile b/arch/blackfin/mach-bf533/boards/Makefile new file mode 100644 index 0000000..12a631a --- /dev/null +++ b/arch/blackfin/mach-bf533/boards/Makefile @@ -0,0 +1,8 @@ +# +# arch/blackfin/mach-bf533/boards/Makefile +# + +obj-$(CONFIG_GENERIC_BOARD) += generic_board.o +obj-$(CONFIG_BFIN533_STAMP) += stamp.o +obj-$(CONFIG_BFIN533_EZKIT) += ezkit.o +obj-$(CONFIG_BFIN533_BLUETECHNIX_CM) += cm_bf533.o diff --git a/arch/blackfin/mach-bf533/boards/cm_bf533.c b/arch/blackfin/mach-bf533/boards/cm_bf533.c new file mode 100644 index 0000000..23a7f60 --- /dev/null +++ b/arch/blackfin/mach-bf533/boards/cm_bf533.c @@ -0,0 +1,267 @@ +/* + * File: arch/blackfin/mach-bf533/boards/cm_bf533.c + * Based on: arch/blackfin/mach-bf533/boards/ezkit.c + * Author: Aidan Williams <aidan@nicta.com.au> Copright 2005 + * + * Created: 2005 + * Description: Board description file + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#include <linux/usb_isp1362.h> +#include <asm/irq.h> +#include <asm/bfin5xx_spi.h> + +/* + * Name the Board for the /proc/cpuinfo + */ +char *bfin_board_name = "Bluetechnix CM BF533"; + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) +/* all SPI peripherals info goes here */ + +static struct mtd_partition bfin_spi_flash_partitions[] = { + { + .name = "bootloader", + .size = 0x00020000, + .offset = 0, + .mask_flags = MTD_CAP_ROM + },{ + .name = "kernel", + .size = 0xe0000, + .offset = 0x20000 + },{ + .name = "file system", + .size = 0x700000, + .offset = 0x00100000, + } +}; + +static struct flash_platform_data bfin_spi_flash_data = { + .name = "m25p80", + .parts = bfin_spi_flash_partitions, + .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions), + .type = "m25p64", +}; + +/* SPI flash chip (m25p64) */ +static struct bfin5xx_spi_chip spi_flash_chip_info = { + .enable_dma = 0, /* use dma transfer with this chip*/ + .bits_per_word = 8, +}; + +/* SPI ADC chip */ +static struct bfin5xx_spi_chip spi_adc_chip_info = { + .enable_dma = 1, /* use dma transfer with this chip*/ + .bits_per_word = 16, +}; + +#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) +static struct bfin5xx_spi_chip ad1836_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +static struct spi_board_info bfin_spi_board_info[] __initdata = { + { + /* the modalias must be the same as spi device driver name */ + .modalias = "m25p80", /* Name of spi_driver for this device */ + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/ + .platform_data = &bfin_spi_flash_data, + .controller_data = &spi_flash_chip_info, + .mode = SPI_MODE_3, + },{ + .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */ + .max_speed_hz = 6250000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 2, /* Framework chip select. */ + .platform_data = NULL, /* No spi_driver specific config */ + .controller_data = &spi_adc_chip_info, + }, +#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) + { + .modalias = "ad1836-spi", + .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT, + .controller_data = &ad1836_spi_chip_info, + }, +#endif +}; + +/* SPI controller data */ +static struct bfin5xx_spi_master spi_bfin_master_info = { + .num_chipselect = 8, + .enable_dma = 1, /* master has the ability to do dma transfer */ +}; + +static struct platform_device spi_bfin_master_device = { + .name = "bfin-spi-master", + .id = 1, /* Bus number */ + .dev = { + .platform_data = &spi_bfin_master_info, /* Passed to driver */ + }, +}; +#endif /* spi master and devices */ + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) +static struct platform_device rtc_device = { + .name = "rtc-bfin", + .id = -1, +}; +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) +static struct resource smc91x_resources[] = { + { + .start = 0x20200300, + .end = 0x20200300 + 16, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF0, + .end = IRQ_PF0, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +static struct resource bfin_uart_resources[] = { + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device bfin_uart_device = { + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) +static struct platform_device bfin_sport0_uart_device = { + .name = "bfin-sport-uart", + .id = 0, +}; + +static struct platform_device bfin_sport1_uart_device = { + .name = "bfin-sport-uart", + .id = 1, +}; +#endif + +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) +static struct resource isp1362_hcd_resources[] = { + { + .start = 0x20308000, + .end = 0x20308000, + .flags = IORESOURCE_MEM, + },{ + .start = 0x20308004, + .end = 0x20308004, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF4, + .end = IRQ_PF4, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct isp1362_platform_data isp1362_priv = { + .sel15Kres = 1, + .clknotstop = 0, + .oc_enable = 0, + .int_act_high = 0, + .int_edge_triggered = 0, + .remote_wakeup_connected = 0, + .no_power_switching = 1, + .power_switching_mode = 0, +}; + +static struct platform_device isp1362_hcd_device = { + .name = "isp1362-hcd", + .id = 0, + .dev = { + .platform_data = &isp1362_priv, + }, + .num_resources = ARRAY_SIZE(isp1362_hcd_resources), + .resource = isp1362_hcd_resources, +}; +#endif + +static struct platform_device *cm_bf533_devices[] __initdata = { +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) + &bfin_uart_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) + &bfin_sport0_uart_device, + &bfin_sport1_uart_device, +#endif + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) + &rtc_device, +#endif + +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) + &isp1362_hcd_device, +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + &smc91x_device, +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + &spi_bfin_master_device, +#endif +}; + +static int __init cm_bf533_init(void) +{ + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + platform_add_devices(cm_bf533_devices, ARRAY_SIZE(cm_bf533_devices)); +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info)); +#endif + return 0; +} + +arch_initcall(cm_bf533_init); diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c new file mode 100644 index 0000000..747298e --- /dev/null +++ b/arch/blackfin/mach-bf533/boards/ezkit.c @@ -0,0 +1,224 @@ +/* + * File: arch/blackfin/mach-bf533/ezkit.c + * Based on: Orginal Work + * Author: Aidan Williams <aidan@nicta.com.au> + * + * Created: 2005 + * Description: + * + * Modified: Robin Getz <rgetz@blackfin.uclinux.org> - Named the boards + * Copyright 2005 National ICT Australia (NICTA) + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#include <linux/usb_isp1362.h> +#include <asm/irq.h> +#include <asm/bfin5xx_spi.h> + +/* + * Name the Board for the /proc/cpuinfo + */ +char *bfin_board_name = "ADDS-BF533-EZKIT"; + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) +static struct platform_device rtc_device = { + .name = "rtc-bfin", + .id = -1, +}; +#endif + +/* + * USB-LAN EzExtender board + * Driver needs to know address, irq and flag pin. + */ +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) +static struct resource smc91x_resources[] = { + { + .name = "smc91x-regs", + .start = 0x20310300, + .end = 0x20310300 + 16, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF9, + .end = IRQ_PF9, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) +/* all SPI peripherals info goes here */ + +#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE) +static struct mtd_partition bfin_spi_flash_partitions[] = { + { + .name = "bootloader", + .size = 0x00020000, + .offset = 0, + .mask_flags = MTD_CAP_ROM + },{ + .name = "kernel", + .size = 0xe0000, + .offset = 0x20000 + },{ + .name = "file system", + .size = 0x700000, + .offset = 0x00100000, + } +}; + +static struct flash_platform_data bfin_spi_flash_data = { + .name = "m25p80", + .parts = bfin_spi_flash_partitions, + .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions), + .type = "m25p64", +}; + +/* SPI flash chip (m25p64) */ +static struct bfin5xx_spi_chip spi_flash_chip_info = { + .enable_dma = 0, /* use dma transfer with this chip*/ + .bits_per_word = 8, +}; +#endif + +#if defined(CONFIG_SPI_ADC_BF533) || defined(CONFIG_SPI_ADC_BF533_MODULE) +/* SPI ADC chip */ +static struct bfin5xx_spi_chip spi_adc_chip_info = { + .enable_dma = 1, /* use dma transfer with this chip*/ + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) +static struct bfin5xx_spi_chip ad1836_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +static struct spi_board_info bfin_spi_board_info[] __initdata = { +#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE) + { + /* the modalias must be the same as spi device driver name */ + .modalias = "m25p80", /* Name of spi_driver for this device */ + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 2, /* Framework chip select. On STAMP537 it is SPISSEL2*/ + .platform_data = &bfin_spi_flash_data, + .controller_data = &spi_flash_chip_info, + .mode = SPI_MODE_3, + }, +#endif + +#if defined(CONFIG_SPI_ADC_BF533) || defined(CONFIG_SPI_ADC_BF533_MODULE) + { + .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */ + .max_speed_hz = 6250000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 1, /* Framework chip select. */ + .platform_data = NULL, /* No spi_driver specific config */ + .controller_data = &spi_adc_chip_info, + }, +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) + { + .modalias = "ad1836-spi", + .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT, + .controller_data = &ad1836_spi_chip_info, + }, +#endif +}; + +/* SPI controller data */ +static struct bfin5xx_spi_master spi_bfin_master_info = { + .num_chipselect = 8, + .enable_dma = 1, /* master has the ability to do dma transfer */ +}; + +static struct platform_device spi_bfin_master_device = { + .name = "bfin-spi-master", + .id = 1, /* Bus number */ + .dev = { + .platform_data = &spi_bfin_master_info, /* Passed to driver */ + }, +}; +#endif /* spi master and devices */ + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +static struct resource bfin_uart_resources[] = { + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device bfin_uart_device = { + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, +}; +#endif + +static struct platform_device *ezkit_devices[] __initdata = { +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + &smc91x_device, +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + &spi_bfin_master_device, +#endif + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) + &rtc_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) + &bfin_uart_device, +#endif +}; + +static int __init ezkit_init(void) +{ + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + platform_add_devices(ezkit_devices, ARRAY_SIZE(ezkit_devices)); +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info)); +#endif + return 0; +} + +arch_initcall(ezkit_init); diff --git a/arch/blackfin/mach-bf533/boards/generic_board.c b/arch/blackfin/mach-bf533/boards/generic_board.c new file mode 100644 index 0000000..c0f43cc --- /dev/null +++ b/arch/blackfin/mach-bf533/boards/generic_board.c @@ -0,0 +1,95 @@ +/* + * File: arch/blackfin/mach-bf533/generic_board.c + * Based on: arch/blackfin/mach-bf533/ezkit.c + * Author: Aidan Williams <aidan@nicta.com.au> + * + * Created: 2005 + * Description: + * + * Modified: + * Copyright 2005 National ICT Australia (NICTA) + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <asm/irq.h> + +/* + * Name the Board for the /proc/cpuinfo + */ +char *bfin_board_name = "UNKNOWN BOARD"; + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) +static struct platform_device rtc_device = { + .name = "rtc-bfin", + .id = -1, +}; +#endif + +/* + * Driver needs to know address, irq and flag pin. + */ +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) +static struct resource smc91x_resources[] = { + { + .start = 0x20300300, + .end = 0x20300300 + 16, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PROG_INTB, + .end = IRQ_PROG_INTB, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + },{ + /* + * denotes the flag pin and is used directly if + * CONFIG_IRQCHIP_DEMUX_GPIO is defined. + */ + .start = IRQ_PF7, + .end = IRQ_PF7, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; +#endif + +static struct platform_device *generic_board_devices[] __initdata = { +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) + &rtc_device, +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + &smc91x_device, +#endif +}; + +static int __init generic_board_init(void) +{ + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + return platform_add_devices(generic_board_devices, ARRAY_SIZE(generic_board_devices)); +} + +arch_initcall(generic_board_init); diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c new file mode 100644 index 0000000..d7b3a5d --- /dev/null +++ b/arch/blackfin/mach-bf533/boards/stamp.c @@ -0,0 +1,321 @@ +/* + * File: arch/blackfin/mach-bf533/stamp.c + * Based on: arch/blackfin/mach-bf533/ezkit.c + * Author: Aidan Williams <aidan@nicta.com.au> + * + * Created: 2005 + * Description: Board Info File for the BF533-STAMP + * + * Modified: + * Copyright 2005 National ICT Australia (NICTA) + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) +#include <linux/usb_isp1362.h> +#endif +#include <asm/irq.h> +#include <asm/bfin5xx_spi.h> + +/* + * Name the Board for the /proc/cpuinfo + */ +char *bfin_board_name = "ADDS-BF533-STAMP"; + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) +static struct platform_device rtc_device = { + .name = "rtc-bfin", + .id = -1, +}; +#endif + +/* + * Driver needs to know address, irq and flag pin. + */ +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) +static struct resource smc91x_resources[] = { + { + .name = "smc91x-regs", + .start = 0x20300300, + .end = 0x20300300 + 16, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF7, + .end = IRQ_PF7, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; +#endif + +#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE) +static struct resource net2272_bfin_resources[] = { + { + .start = 0x20300000, + .end = 0x20300000 + 0x100, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF10, + .end = IRQ_PF10, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct platform_device net2272_bfin_device = { + .name = "net2272", + .id = -1, + .num_resources = ARRAY_SIZE(net2272_bfin_resources), + .resource = net2272_bfin_resources, +}; +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) +/* all SPI peripherals info goes here */ + +#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE) +static struct mtd_partition bfin_spi_flash_partitions[] = { + { + .name = "bootloader", + .size = 0x00020000, + .offset = 0, + .mask_flags = MTD_CAP_ROM + },{ + .name = "kernel", + .size = 0xe0000, + .offset = 0x20000 + },{ + .name = "file system", + .size = 0x700000, + .offset = 0x00100000, + } +}; + +static struct flash_platform_data bfin_spi_flash_data = { + .name = "m25p80", + .parts = bfin_spi_flash_partitions, + .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions), + .type = "m25p64", +}; + +/* SPI flash chip (m25p64) */ +static struct bfin5xx_spi_chip spi_flash_chip_info = { + .enable_dma = 0, /* use dma transfer with this chip*/ + .bits_per_word = 8, +}; +#endif + +#if defined(CONFIG_SPI_ADC_BF533) || defined(CONFIG_SPI_ADC_BF533_MODULE) +/* SPI ADC chip */ +static struct bfin5xx_spi_chip spi_adc_chip_info = { + .enable_dma = 1, /* use dma transfer with this chip*/ + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) +static struct bfin5xx_spi_chip ad1836_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_PBX) +static struct bfin5xx_spi_chip spi_si3xxx_chip_info = { + .ctl_reg = 0x4, /* send zero */ + .enable_dma = 0, + .bits_per_word = 8, + .cs_change_per_word = 1, +}; +#endif + +#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE) +static struct bfin5xx_spi_chip ad5304_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +static struct spi_board_info bfin_spi_board_info[] __initdata = { +#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE) + { + /* the modalias must be the same as spi device driver name */ + .modalias = "m25p80", /* Name of spi_driver for this device */ + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 2, /* Framework chip select. On STAMP537 it is SPISSEL2*/ + .platform_data = &bfin_spi_flash_data, + .controller_data = &spi_flash_chip_info, + .mode = SPI_MODE_3, + }, +#endif + +#if defined(CONFIG_SPI_ADC_BF533) || defined(CONFIG_SPI_ADC_BF533_MODULE) + { + .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */ + .max_speed_hz = 6250000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 1, /* Framework chip select. */ + .platform_data = NULL, /* No spi_driver specific config */ + .controller_data = &spi_adc_chip_info, + }, +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) + { + .modalias = "ad1836-spi", + .max_speed_hz = 31250000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT, + .controller_data = &ad1836_spi_chip_info, + }, +#endif + +#if defined(CONFIG_PBX) + { + .modalias = "fxs-spi", + .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 3, + .controller_data= &spi_si3xxx_chip_info, + .mode = SPI_MODE_3, + }, + { + .modalias = "fxo-spi", + .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 2, + .controller_data= &spi_si3xxx_chip_info, + .mode = SPI_MODE_3, + }, +#endif + +#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE) + { + .modalias = "ad5304_spi", + .max_speed_hz = 1000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 2, + .platform_data = NULL, + .controller_data = &ad5304_chip_info, + .mode = SPI_MODE_2, + }, +#endif +}; + +/* SPI controller data */ +static struct bfin5xx_spi_master spi_bfin_master_info = { + .num_chipselect = 8, + .enable_dma = 1, /* master has the ability to do dma transfer */ +}; + +static struct platform_device spi_bfin_master_device = { + .name = "bfin-spi-master", + .id = 1, /* Bus number */ + .dev = { + .platform_data = &spi_bfin_master_info, /* Passed to driver */ + }, +}; +#endif /* spi master and devices */ + +#if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE) +static struct platform_device bfin_fb_device = { + .name = "bf537-fb", +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +static struct resource bfin_uart_resources[] = { + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device bfin_uart_device = { + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) +static struct platform_device bfin_sport0_uart_device = { + .name = "bfin-sport-uart", + .id = 0, +}; + +static struct platform_device bfin_sport1_uart_device = { + .name = "bfin-sport-uart", + .id = 1, +}; +#endif + +static struct platform_device *stamp_devices[] __initdata = { +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) + &rtc_device, +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + &smc91x_device, +#endif + +#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE) + &net2272_bfin_device, +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + &spi_bfin_master_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) + &bfin_uart_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) + &bfin_sport0_uart_device, + &bfin_sport1_uart_device, +#endif +}; + +static int __init stamp_init(void) +{ + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices)); +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info)); +#endif + return 0; +} + +arch_initcall(stamp_init); diff --git a/arch/blackfin/mach-bf533/cpu.c b/arch/blackfin/mach-bf533/cpu.c new file mode 100644 index 0000000..99547c4 --- /dev/null +++ b/arch/blackfin/mach-bf533/cpu.c @@ -0,0 +1,161 @@ +/* + * File: arch/blackfin/mach-bf533/cpu.c + * Based on: + * Author: michael.kang@analog.com + * + * Created: + * Description: clock scaling for the bf533 + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/cpufreq.h> +#include <asm/dpmc.h> +#include <linux/fs.h> +#include <asm/bfin-global.h> + +/* CONFIG_CLKIN_HZ=11059200 */ +#define VCO5 (CONFIG_CLKIN_HZ*45) /*497664000 */ +#define VCO4 (CONFIG_CLKIN_HZ*36) /*398131200 */ +#define VCO3 (CONFIG_CLKIN_HZ*27) /*298598400 */ +#define VCO2 (CONFIG_CLKIN_HZ*18) /*199065600 */ +#define VCO1 (CONFIG_CLKIN_HZ*9) /*99532800 */ +#define VCO(x) VCO##x + +#define FREQ(x) {VCO(x),VCO(x)/4},{VCO(x),VCO(x)/2},{VCO(x),VCO(x)} +/* frequency */ +static struct cpufreq_frequency_table bf533_freq_table[] = { + FREQ(1), + FREQ(3), + {VCO4, VCO4 / 2}, {VCO4, VCO4}, + FREQ(5), + {0, CPUFREQ_TABLE_END}, +}; + +/* + * dpmc_fops->ioctl() + * static int dpmc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) + */ +static int bf533_getfreq(unsigned int cpu) +{ + unsigned long cclk_mhz, vco_mhz; + + /* The driver only support single cpu */ + if (cpu == 0) + dpmc_fops.ioctl(NULL, NULL, IOCTL_GET_CORECLOCK, &cclk_mhz); + else + cclk_mhz = -1; + return cclk_mhz; +} + +static int bf533_target(struct cpufreq_policy *policy, + unsigned int target_freq, unsigned int relation) +{ + unsigned long cclk_mhz; + unsigned long vco_mhz; + unsigned long flags; + unsigned int index, vco_index; + int i; + + struct cpufreq_freqs freqs; + if (cpufreq_frequency_table_target + (policy, bf533_freq_table, target_freq, relation, &index)) + return -EINVAL; + cclk_mhz = bf533_freq_table[index].frequency; + vco_mhz = bf533_freq_table[index].index; + + dpmc_fops.ioctl(NULL, NULL, IOCTL_CHANGE_FREQUENCY, &vco_mhz); + freqs.old = bf533_getfreq(0); + freqs.new = cclk_mhz; + freqs.cpu = 0; + + pr_debug("cclk begin change to cclk %d,vco=%d,index=%d,target=%d,oldfreq=%d\n", + cclk_mhz, vco_mhz, index, target_freq, freqs.old); + + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + local_irq_save(flags); + dpmc_fops.ioctl(NULL, NULL, IOCTL_SET_CCLK, &cclk_mhz); + local_irq_restore(flags); + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + + vco_mhz = get_vco(); + cclk_mhz = get_cclk(); + return 0; +} + +/* make sure that only the "userspace" governor is run -- anything else wouldn't make sense on + * this platform, anyway. + */ +static int bf533_verify_speed(struct cpufreq_policy *policy) +{ + return cpufreq_frequency_table_verify(policy, &bf533_freq_table); +} + +static int __init __bf533_cpu_init(struct cpufreq_policy *policy) +{ + int result; + + if (policy->cpu != 0) + return -EINVAL; + + policy->governor = CPUFREQ_DEFAULT_GOVERNOR; + + policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; + /*Now ,only support one cpu */ + policy->cur = bf533_getfreq(0); + cpufreq_frequency_table_get_attr(bf533_freq_table, policy->cpu); + return cpufreq_frequency_table_cpuinfo(policy, bf533_freq_table); +} + +static struct freq_attr *bf533_freq_attr[] = { + &cpufreq_freq_attr_scaling_available_freqs, + NULL, +}; + +static struct cpufreq_driver bf533_driver = { + .verify = bf533_verify_speed, + .target = bf533_target, + .get = bf533_getfreq, + .init = __bf533_cpu_init, + .name = "bf533", + .owner = THIS_MODULE, + .attr = bf533_freq_attr, +}; + +static int __init bf533_cpu_init(void) +{ + return cpufreq_register_driver(&bf533_driver); +} + +static void __exit bf533_cpu_exit(void) +{ + cpufreq_unregister_driver(&bf533_driver); +} + +MODULE_AUTHOR("Mickael Kang"); +MODULE_DESCRIPTION("cpufreq driver for BF533 CPU"); +MODULE_LICENSE("GPL"); + +module_init(bf533_cpu_init); +module_exit(bf533_cpu_exit); diff --git a/arch/blackfin/mach-bf533/head.S b/arch/blackfin/mach-bf533/head.S new file mode 100644 index 0000000..4808edb --- /dev/null +++ b/arch/blackfin/mach-bf533/head.S @@ -0,0 +1,774 @@ +/* + * File: arch/blackfin/mach-bf533/head.S + * Based on: + * Author: Jeff Dionne <jeff@uclinux.org> COPYRIGHT 1998 D. Jeff Dionne + * + * Created: 1998 + * Description: bf533 startup file + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> +#include <asm/blackfin.h> +#if CONFIG_BFIN_KERNEL_CLOCK +#include <asm/mach/mem_init.h> +#endif +#if CONFIG_DEBUG_KERNEL_START +#include <asm/mach-common/def_LPBlackfin.h> +#endif + +.global __rambase +.global __ramstart +.global __ramend +.extern ___bss_stop +.extern ___bss_start +.extern _bf53x_relocate_l1_mem + +#define INITIAL_STACK 0xFFB01000 + +.text + +ENTRY(__start) +ENTRY(__stext) + /* R0: argument of command line string, passed from uboot, save it */ + R7 = R0; + /* Set the SYSCFG register */ + R0 = 0x36; + /*Enable Cycle Counter and Nesting Of Interrupts(3rd Bit)*/ + SYSCFG = R0; + R0 = 0; + + /*Clear Out All the data and pointer Registers*/ + R1 = R0; + R2 = R0; + R3 = R0; + R4 = R0; + R5 = R0; + R6 = R0; + + P0 = R0; + P1 = R0; + P2 = R0; + P3 = R0; + P4 = R0; + P5 = R0; + + LC0 = r0; + LC1 = r0; + L0 = r0; + L1 = r0; + L2 = r0; + L3 = r0; + + /* Clear Out All the DAG Registers*/ + B0 = r0; + B1 = r0; + B2 = r0; + B3 = r0; + + I0 = r0; + I1 = r0; + I2 = r0; + I3 = r0; + + M0 = r0; + M1 = r0; + M2 = r0; + M3 = r0; + +#if CONFIG_DEBUG_KERNEL_START + +/* + * Set up a temporary Event Vector Table, so if something bad happens before + * the kernel is fully started, it doesn't vector off into the bootloaders + * table + */ + P0.l = lo(EVT2); + P0.h = hi(EVT2); + P1.l = lo(EVT15); + P1.h = hi(EVT15); + P2.l = debug_kernel_start_trap; + P2.h = debug_kernel_start_trap; + + RTS = P2; + RTI = P2; + RTX = P2; + RTN = P2; + RTE = P2; + +.Lfill_temp_vector_table: + [P0++] = P2; /* Core Event Vector Table */ + CC = P0 == P1; + if !CC JUMP .Lfill_temp_vector_table + P0 = r0; + P1 = r0; + P2 = r0; + +#endif + + p0.h = hi(FIO_MASKA_C); + p0.l = lo(FIO_MASKA_C); + r0 = 0xFFFF(Z); + w[p0] = r0.L; /* Disable all interrupts */ + ssync; + + p0.h = hi(FIO_MASKB_C); + p0.l = lo(FIO_MASKB_C); + r0 = 0xFFFF(Z); + w[p0] = r0.L; /* Disable all interrupts */ + ssync; + + /* Turn off the icache */ + p0.l = (IMEM_CONTROL & 0xFFFF); + p0.h = (IMEM_CONTROL >> 16); + R1 = [p0]; + R0 = ~ENICPLB; + R0 = R0 & R1; + + /* Anomaly 05000125 */ +#ifdef ANOMALY_05000125 + CLI R2; + SSYNC; +#endif + [p0] = R0; + SSYNC; +#ifdef ANOMALY_05000125 + STI R2; +#endif + + /* Turn off the dcache */ + p0.l = (DMEM_CONTROL & 0xFFFF); + p0.h = (DMEM_CONTROL >> 16); + R1 = [p0]; + R0 = ~ENDCPLB; + R0 = R0 & R1; + + /* Anomaly 05000125 */ +#ifdef ANOMALY_05000125 + CLI R2; + SSYNC; +#endif + [p0] = R0; + SSYNC; +#ifdef ANOMALY_05000125 + STI R2; +#endif + + /* Initialise UART */ + p0.h = hi(UART_LCR); + p0.l = lo(UART_LCR); + r0 = 0x0(Z); + w[p0] = r0.L; /* To enable DLL writes */ + ssync; + + p0.h = hi(UART_DLL); + p0.l = lo(UART_DLL); + r0 = 0x0(Z); + w[p0] = r0.L; + ssync; + + p0.h = hi(UART_DLH); + p0.l = lo(UART_DLH); + r0 = 0x00(Z); + w[p0] = r0.L; + ssync; + + p0.h = hi(UART_GCTL); + p0.l = lo(UART_GCTL); + r0 = 0x0(Z); + w[p0] = r0.L; /* To enable UART clock */ + ssync; + + /* Initialize stack pointer */ + sp.l = lo(INITIAL_STACK); + sp.h = hi(INITIAL_STACK); + fp = sp; + usp = sp; + + /* Put The Code for PLL Programming and SDRAM Programming in L1 ISRAM */ + call _bf53x_relocate_l1_mem; +#if CONFIG_BFIN_KERNEL_CLOCK + call _start_dma_code; +#endif + + /* Code for initializing Async memory banks */ + + p2.h = hi(EBIU_AMBCTL1); + p2.l = lo(EBIU_AMBCTL1); + r0.h = hi(AMBCTL1VAL); + r0.l = lo(AMBCTL1VAL); + [p2] = r0; + ssync; + + p2.h = hi(EBIU_AMBCTL0); + p2.l = lo(EBIU_AMBCTL0); + r0.h = hi(AMBCTL0VAL); + r0.l = lo(AMBCTL0VAL); + [p2] = r0; + ssync; + + p2.h = hi(EBIU_AMGCTL); + p2.l = lo(EBIU_AMGCTL); + r0 = AMGCTLVAL; + w[p2] = r0; + ssync; + + /* This section keeps the processor in supervisor mode + * during kernel boot. Switches to user mode at end of boot. + * See page 3-9 of Hardware Reference manual for documentation. + */ + + /* EVT15 = _real_start */ + + p0.l = lo(EVT15); + p0.h = hi(EVT15); + p1.l = _real_start; + p1.h = _real_start; + [p0] = p1; + csync; + + p0.l = lo(IMASK); + p0.h = hi(IMASK); + p1.l = IMASK_IVG15; + p1.h = 0x0; + [p0] = p1; + csync; + + raise 15; + p0.l = .LWAIT_HERE; + p0.h = .LWAIT_HERE; + reti = p0; +#if defined(ANOMALY_05000281) + nop; nop; nop; +#endif + rti; + +.LWAIT_HERE: + jump .LWAIT_HERE; + +ENTRY(_real_start) + [ -- sp ] = reti; + p0.l = lo(WDOG_CTL); + p0.h = hi(WDOG_CTL); + r0 = 0xAD6(z); + w[p0] = r0; /* watchdog off for now */ + ssync; + + /* Code update for BSS size == 0 + * Zero out the bss region. + */ + + p1.l = ___bss_start; + p1.h = ___bss_start; + p2.l = ___bss_stop; + p2.h = ___bss_stop; + r0 = 0; + p2 -= p1; + lsetup (.L_clear_bss, .L_clear_bss) lc0 = p2; +.L_clear_bss: + B[p1++] = r0; + + /* In case there is a NULL pointer reference + * Zero out region before stext + */ + + p1.l = 0x0; + p1.h = 0x0; + r0.l = __stext; + r0.h = __stext; + r0 = r0 >> 1; + p2 = r0; + r0 = 0; + lsetup (.L_clear_zero, .L_clear_zero) lc0 = p2; +.L_clear_zero: + W[p1++] = r0; + +/* pass the uboot arguments to the global value command line */ + R0 = R7; + call _cmdline_init; + + p1.l = __rambase; + p1.h = __rambase; + r0.l = __sdata; + r0.h = __sdata; + [p1] = r0; + + p1.l = __ramstart; + p1.h = __ramstart; + p3.l = ___bss_stop; + p3.h = ___bss_stop; + + r1 = p3; + [p1] = r1; + + /* + * load the current thread pointer and stack + */ + r1.l = _init_thread_union; + r1.h = _init_thread_union; + + r2.l = 0x2000; + r2.h = 0x0000; + r1 = r1 + r2; + sp = r1; + usp = sp; + fp = sp; + call _start_kernel; +.L_exit: + jump.s .L_exit; + +.section .l1.text +#if CONFIG_BFIN_KERNEL_CLOCK +ENTRY(_start_dma_code) + p0.h = hi(SIC_IWR); + p0.l = lo(SIC_IWR); + r0.l = 0x1; + r0.h = 0x0; + [p0] = r0; + SSYNC; + + /* + * Set PLL_CTL + * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors + * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK + * - [7] = output delay (add 200ps of delay to mem signals) + * - [6] = input delay (add 200ps of input delay to mem signals) + * - [5] = PDWN : 1=All Clocks off + * - [3] = STOPCK : 1=Core Clock off + * - [1] = PLL_OFF : 1=Disable Power to PLL + * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL + * all other bits set to zero + */ + + p0.h = hi(PLL_LOCKCNT); + p0.l = lo(PLL_LOCKCNT); + r0 = 0x300(Z); + w[p0] = r0.l; + ssync; + + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITSET (R0, 24); + [P2] = R0; + SSYNC; + + r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ + r0 = r0 << 9; /* Shift it over, */ + r1 = CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/ + r0 = r1 | r0; + r1 = PLL_BYPASS; /* Bypass the PLL? */ + r1 = r1 << 8; /* Shift it over */ + r0 = r1 | r0; /* add them all together */ + + p0.h = hi(PLL_CTL); + p0.l = lo(PLL_CTL); /* Load the address */ + cli r2; /* Disable interrupts */ + ssync; + w[p0] = r0.l; /* Set the value */ + idle; /* Wait for the PLL to stablize */ + sti r2; /* Enable interrupts */ + +.Lcheck_again: + p0.h = hi(PLL_STAT); + p0.l = lo(PLL_STAT); + R0 = W[P0](Z); + CC = BITTST(R0,5); + if ! CC jump .Lcheck_again; + + /* Configure SCLK & CCLK Dividers */ + r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); + p0.h = hi(PLL_DIV); + p0.l = lo(PLL_DIV); + w[p0] = r0.l; + ssync; + + p0.l = lo(EBIU_SDRRC); + p0.h = hi(EBIU_SDRRC); + r0 = mem_SDRRC; + w[p0] = r0.l; + ssync; + + p0.l = (EBIU_SDBCTL & 0xFFFF); + p0.h = (EBIU_SDBCTL >> 16); /* SDRAM Memory Bank Control Register */ + r0 = mem_SDBCTL; + w[p0] = r0.l; + ssync; + + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITCLR (R0, 24); + p0.h = hi(EBIU_SDSTAT); + p0.l = lo(EBIU_SDSTAT); + r2.l = w[p0]; + cc = bittst(r2,3); + if !cc jump .Lskip; + NOP; + BITSET (R0, 23); +.Lskip: + [P2] = R0; + SSYNC; + + R0.L = lo(mem_SDGCTL); + R0.H = hi(mem_SDGCTL); + R1 = [p2]; + R1 = R1 | R0; + [P2] = R1; + SSYNC; + + p0.h = hi(SIC_IWR); + p0.l = lo(SIC_IWR); + r0.l = lo(IWR_ENABLE_ALL) + r0.h = hi(IWR_ENABLE_ALL) + [p0] = r0; + SSYNC; + + RTS; +#endif /* CONFIG_BFIN_KERNEL_CLOCK */ + +ENTRY(_bfin_reset) + /* No more interrupts to be handled*/ + CLI R6; + SSYNC; + +#if defined(CONFIG_BFIN_SHARED_FLASH_ENET) + p0.h = hi(FIO_INEN); + p0.l = lo(FIO_INEN); + r0.l = ~(1 << CONFIG_ENET_FLASH_PIN); + w[p0] = r0.l; + + p0.h = hi(FIO_DIR); + p0.l = lo(FIO_DIR); + r0.l = (1 << CONFIG_ENET_FLASH_PIN); + w[p0] = r0.l; + + p0.h = hi(FIO_FLAG_C); + p0.l = lo(FIO_FLAG_C); + r0.l = (1 << CONFIG_ENET_FLASH_PIN); + w[p0] = r0.l; +#endif + + /* Clear the bits 13-15 in SWRST if they werent cleared */ + p0.h = hi(SWRST); + p0.l = lo(SWRST); + csync; + r0.l = w[p0]; + + /* Clear the IMASK register */ + p0.h = hi(IMASK); + p0.l = lo(IMASK); + r0 = 0x0; + [p0] = r0; + + /* Clear the ILAT register */ + p0.h = hi(ILAT); + p0.l = lo(ILAT); + r0 = [p0]; + [p0] = r0; + SSYNC; + + /* Disable the WDOG TIMER */ + p0.h = hi(WDOG_CTL); + p0.l = lo(WDOG_CTL); + r0.l = 0xAD6; + w[p0] = r0.l; + SSYNC; + + /* Clear the sticky bit incase it is already set */ + p0.h = hi(WDOG_CTL); + p0.l = lo(WDOG_CTL); + r0.l = 0x8AD6; + w[p0] = r0.l; + SSYNC; + + /* Program the count value */ + R0.l = 0x100; + R0.h = 0x0; + P0.h = hi(WDOG_CNT); + P0.l = lo(WDOG_CNT); + [P0] = R0; + SSYNC; + + /* Program WDOG_STAT if necessary */ + P0.h = hi(WDOG_CTL); + P0.l = lo(WDOG_CTL); + R0 = W[P0](Z); + CC = BITTST(R0,1); + if !CC JUMP .LWRITESTAT; + CC = BITTST(R0,2); + if !CC JUMP .LWRITESTAT; + JUMP .LSKIP_WRITE; + +.LWRITESTAT: + /* When watch dog timer is enabled, a write to STAT will load the contents of CNT to STAT */ + R0 = 0x0000(z); + P0.h = hi(WDOG_STAT); + P0.l = lo(WDOG_STAT) + [P0] = R0; + SSYNC; + +.LSKIP_WRITE: + /* Enable the reset event */ + P0.h = hi(WDOG_CTL); + P0.l = lo(WDOG_CTL); + R0 = W[P0](Z); + BITCLR(R0,1); + BITCLR(R0,2); + W[P0] = R0.L; + SSYNC; + NOP; + + /* Enable the wdog counter */ + R0 = W[P0](Z); + BITCLR(R0,4); + W[P0] = R0.L; + SSYNC; + + IDLE; + + RTS; + +#if CONFIG_DEBUG_KERNEL_START +debug_kernel_start_trap: + /* Set up a temp stack in L1 - SDRAM might not be working */ + P0.L = lo(L1_DATA_A_START + 0x100); + P0.H = hi(L1_DATA_A_START + 0x100); + SP = P0; + + /* Make sure the Clocks are the way I think they should be */ + r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ + r0 = r0 << 9; /* Shift it over, */ + r1 = CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/ + r0 = r1 | r0; + r1 = PLL_BYPASS; /* Bypass the PLL? */ + r1 = r1 << 8; /* Shift it over */ + r0 = r1 | r0; /* add them all together */ + + p0.h = hi(PLL_CTL); + p0.l = lo(PLL_CTL); /* Load the address */ + cli r2; /* Disable interrupts */ + ssync; + w[p0] = r0.l; /* Set the value */ + idle; /* Wait for the PLL to stablize */ + sti r2; /* Enable interrupts */ + +.Lcheck_again1: + p0.h = hi(PLL_STAT); + p0.l = lo(PLL_STAT); + R0 = W[P0](Z); + CC = BITTST(R0,5); + if ! CC jump .Lcheck_again1; + + /* Configure SCLK & CCLK Dividers */ + r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); + p0.h = hi(PLL_DIV); + p0.l = lo(PLL_DIV); + w[p0] = r0.l; + ssync; + + /* Make sure UART is enabled - you can never be sure */ + +/* + * Setup for console. Argument comes from the menuconfig + */ + +#ifdef CONFIG_BAUD_9600 +#define CONSOLE_BAUD_RATE 9600 +#elif CONFIG_BAUD_19200 +#define CONSOLE_BAUD_RATE 19200 +#elif CONFIG_BAUD_38400 +#define CONSOLE_BAUD_RATE 38400 +#elif CONFIG_BAUD_57600 +#define CONSOLE_BAUD_RATE 57600 +#elif CONFIG_BAUD_115200 +#define CONSOLE_BAUD_RATE 115200 +#endif + + p0.h = hi(UART_GCTL); + p0.l = lo(UART_GCTL); + r0 = 0x00(Z); + w[p0] = r0.L; /* To Turn off UART clocks */ + ssync; + + p0.h = hi(UART_LCR); + p0.l = lo(UART_LCR); + r0 = 0x83(Z); + w[p0] = r0.L; /* To enable DLL writes */ + ssync; + + R1 = (((CONFIG_CLKIN_HZ * CONFIG_VCO_MULT) / CONFIG_SCLK_DIV) / (CONSOLE_BAUD_RATE * 16)); + + p0.h = hi(UART_DLL); + p0.l = lo(UART_DLL); + r0 = 0xFF(Z); + r0 = R1 & R0; + w[p0] = r0.L; + ssync; + + p0.h = hi(UART_DLH); + p0.l = lo(UART_DLH); + r1 >>= 8 ; + w[p0] = r1.L; + ssync; + + p0.h = hi(UART_GCTL); + p0.l = lo(UART_GCTL); + r0 = 0x0(Z); + w[p0] = r0.L; /* To enable UART clock */ + ssync; + + p0.h = hi(UART_LCR); + p0.l = lo(UART_LCR); + r0 = 0x03(Z); + w[p0] = r0.L; /* To Turn on UART */ + ssync; + + p0.h = hi(UART_GCTL); + p0.l = lo(UART_GCTL); + r0 = 0x01(Z); + w[p0] = r0.L; /* To Turn on UART Clocks */ + ssync; + + P0.h = hi(UART_THR); + P0.l = lo(UART_THR); + P1.h = hi(UART_LSR); + P1.l = lo(UART_LSR); + + R0.L = 'K'; + call .Lwait_char; + R0.L='e'; + call .Lwait_char; + R0.L='r'; + call .Lwait_char; + R0.L='n' + call .Lwait_char; + R0.L='e' + call .Lwait_char; + R0.L='l'; + call .Lwait_char; + R0.L=' '; + call .Lwait_char; + R0.L='c'; + call .Lwait_char; + R0.L='r'; + call .Lwait_char; + R0.L='a'; + call .Lwait_char; + R0.L='s'; + call .Lwait_char; + R0.L='h'; + call .Lwait_char; + R0.L='\r'; + call .Lwait_char; + R0.L='\n'; + call .Lwait_char; + + R0.L='S'; + call .Lwait_char; + R0.L='E'; + call .Lwait_char; + R0.L='Q' + call .Lwait_char; + R0.L='S' + call .Lwait_char; + R0.L='T'; + call .Lwait_char; + R0.L='A'; + call .Lwait_char; + R0.L='T'; + call .Lwait_char; + R0.L='='; + call .Lwait_char; + R2 = SEQSTAT; + call .Ldump_reg; + + R0.L=' '; + call .Lwait_char; + R0.L='R'; + call .Lwait_char; + R0.L='E' + call .Lwait_char; + R0.L='T' + call .Lwait_char; + R0.L='X'; + call .Lwait_char; + R0.L='='; + call .Lwait_char; + R2 = RETX; + call .Ldump_reg; + + R0.L='\r'; + call .Lwait_char; + R0.L='\n'; + call .Lwait_char; + +.Ldebug_kernel_start_trap_done: + JUMP .Ldebug_kernel_start_trap_done; +.Ldump_reg: + R3 = 32; + R4 = 0x0F; + R5 = ':'; /* one past 9 */ + +.Ldump_reg2: + R0 = R2; + R3 += -4; + R0 >>>= R3; + R0 = R0 & R4; + R0 += 0x30; + CC = R0 <= R5; + if CC JUMP .Ldump_reg1; + R0 += 7; + +.Ldump_reg1: + R1.l = W[P1]; + CC = BITTST(R1, 5); + if !CC JUMP .Ldump_reg1; + W[P0] = r0; + + CC = R3 == 0; + if !CC JUMP .Ldump_reg2 + RTS; + +.Lwait_char: + R1.l = W[P1]; + CC = BITTST(R1, 5); + if !CC JUMP .Lwait_char; + W[P0] = r0; + RTS; + +#endif /* CONFIG_DEBUG_KERNEL_START */ + +.data + +/* + * Set up the usable of RAM stuff. Size of RAM is determined then + * an initial stack set up at the end. + */ + +.align 4 +__rambase: +.long 0 +__ramstart: +.long 0 +__ramend: +.long 0 diff --git a/arch/blackfin/mach-bf533/ints-priority.c b/arch/blackfin/mach-bf533/ints-priority.c new file mode 100644 index 0000000..36a6933 --- /dev/null +++ b/arch/blackfin/mach-bf533/ints-priority.c @@ -0,0 +1,65 @@ +/* + * File: arch/blackfin/mach-bf533/ints-priority.c + * Based on: + * Author: Michael Hennerich + * + * Created: ? + * Description: Set up the interupt priorities + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <asm/blackfin.h> +#include <asm/irq.h> + +void program_IAR(void) +{ + /* Program the IAR0 Register with the configured priority */ + bfin_write_SIC_IAR0(((CONFIG_PLLWAKE_ERROR - 7) << PLLWAKE_ERROR_POS) | + ((CONFIG_DMA_ERROR - 7) << DMA_ERROR_POS) | + ((CONFIG_PPI_ERROR - 7) << PPI_ERROR_POS) | + ((CONFIG_SPORT0_ERROR - 7) << SPORT0_ERROR_POS) | + ((CONFIG_SPI_ERROR - 7) << SPI_ERROR_POS) | + ((CONFIG_SPORT1_ERROR - 7) << SPORT1_ERROR_POS) | + ((CONFIG_UART_ERROR - 7) << UART_ERROR_POS) | + ((CONFIG_RTC_ERROR - 7) << RTC_ERROR_POS)); + + bfin_write_SIC_IAR1(((CONFIG_DMA0_PPI - 7) << DMA0_PPI_POS) | + ((CONFIG_DMA1_SPORT0RX - 7) << DMA1_SPORT0RX_POS) | + ((CONFIG_DMA2_SPORT0TX - 7) << DMA2_SPORT0TX_POS) | + ((CONFIG_DMA3_SPORT1RX - 7) << DMA3_SPORT1RX_POS) | + ((CONFIG_DMA4_SPORT1TX - 7) << DMA4_SPORT1TX_POS) | + ((CONFIG_DMA5_SPI - 7) << DMA5_SPI_POS) | + ((CONFIG_DMA6_UARTRX - 7) << DMA6_UARTRX_POS) | + ((CONFIG_DMA7_UARTTX - 7) << DMA7_UARTTX_POS)); + + bfin_write_SIC_IAR2(((CONFIG_TIMER0 - 7) << TIMER0_POS) | + ((CONFIG_TIMER1 - 7) << TIMER1_POS) | + ((CONFIG_TIMER2 - 7) << TIMER2_POS) | + ((CONFIG_PFA - 7) << PFA_POS) | + ((CONFIG_PFB - 7) << PFB_POS) | + ((CONFIG_MEMDMA0 - 7) << MEMDMA0_POS) | + ((CONFIG_MEMDMA1 - 7) << MEMDMA1_POS) | + ((CONFIG_WDTIMER - 7) << WDTIMER_POS)); + + SSYNC(); +} diff --git a/arch/blackfin/mach-bf537/Kconfig b/arch/blackfin/mach-bf537/Kconfig new file mode 100644 index 0000000..cc9ae38 --- /dev/null +++ b/arch/blackfin/mach-bf537/Kconfig @@ -0,0 +1,141 @@ +if (BF537 || BF534 || BF536) + +menu "BF537 Specific Configuration" + +comment "PORT F/G Selection" +choice + prompt "Select BF537/6/4 default GPIO PFx PORTx" + help + Quick Hack for BF537/6/4 default GPIO PFx PORTF. + +config BF537_PORT_F + bool "Select BF537/6/4 default GPIO PFx PORTF" + depends on (BF537 || BF536 || BF534) + help + Quick Hack for BF537/6/4 default GPIO PFx PORTF. + +config BF537_PORT_G + bool "Select BF537/6/4 default GPIO PFx PORTG" + depends on (BF537 || BF536 || BF534) + help + Quick Hack for BF537/6/4 default GPIO PFx PORTG. + +config BF537_PORT_H + bool "Select BF537/6/4 default GPIO PFx PORTH" + depends on (BF537 || BF536 || BF534) + help + Quick Hack for BF537/6/4 default GPIO PFx PORTH + Use only when Blackfin EMAC support is not required. + +endchoice + +comment "Interrupt Priority Assignment" +menu "Priority" + +config IRQ_PLL_WAKEUP + int "IRQ_PLL_WAKEUP" + default 7 +config IRQ_DMA_ERROR + int "IRQ_DMA_ERROR Generic" + default 7 +config IRQ_ERROR + int "IRQ_ERROR: CAN MAC SPORT0 SPORT1 SPI UART0 UART1" + default 7 +config IRQ_RTC + int "IRQ_RTC" + default 8 +config IRQ_PPI + int "IRQ_PPI" + default 8 +config IRQ_SPORT0_RX + int "IRQ_SPORT0_RX" + default 9 +config IRQ_SPORT0_TX + int "IRQ_SPORT0_TX" + default 9 +config IRQ_SPORT1_RX + int "IRQ_SPORT1_RX" + default 9 +config IRQ_SPORT1_TX + int "IRQ_SPORT1_TX" + default 9 +config IRQ_TWI + int "IRQ_TWI" + default 10 +config IRQ_SPI + int "IRQ_SPI" + default 10 +config IRQ_UART0_RX + int "IRQ_UART0_RX" + default 10 +config IRQ_UART0_TX + int "IRQ_UART0_TX" + default 10 +config IRQ_UART1_RX + int "IRQ_UART1_RX" + default 10 +config IRQ_UART1_TX + int "IRQ_UART1_TX" + default 10 +config IRQ_CAN_RX + int "IRQ_CAN_RX" + default 11 +config IRQ_CAN_TX + int "IRQ_CAN_TX" + default 11 +config IRQ_MAC_RX + int "IRQ_MAC_RX" + default 11 +config IRQ_MAC_TX + int "IRQ_MAC_TX" + default 11 +config IRQ_TMR0 + int "IRQ_TMR0" + default 12 +config IRQ_TMR1 + int "IRQ_TMR1" + default 12 +config IRQ_TMR2 + int "IRQ_TMR2" + default 12 +config IRQ_TMR3 + int "IRQ_TMR3" + default 12 +config IRQ_TMR4 + int "IRQ_TMR4" + default 12 +config IRQ_TMR5 + int "IRQ_TMR5" + default 12 +config IRQ_TMR6 + int "IRQ_TMR6" + default 12 +config IRQ_TMR7 + int "IRQ_TMR7" + default 12 +config IRQ_PROG_INTA + int "IRQ_PROG_INTA" + default 12 +config IRQ_PORTG_INTB + int "IRQ_PORTG_INTB" + default 12 +config IRQ_MEM_DMA0 + int "IRQ_MEM_DMA0" + default 13 +config IRQ_MEM_DMA1 + int "IRQ_MEM_DMA1" + default 13 +config IRQ_WATCH + int "IRQ_WATCH" + default 13 + + help + Enter the priority numbers between 7-13 ONLY. Others are Reserved. + This applies to all the above. It is not recommended to assign the + highest priority number 7 to UART or any other device. + +endmenu + +endmenu + +endif diff --git a/arch/blackfin/mach-bf537/Makefile b/arch/blackfin/mach-bf537/Makefile new file mode 100644 index 0000000..f32d442 --- /dev/null +++ b/arch/blackfin/mach-bf537/Makefile @@ -0,0 +1,9 @@ +# +# arch/blackfin/mach-bf537/Makefile +# + +extra-y := head.o + +obj-y := ints-priority.o + +obj-$(CONFIG_CPU_FREQ) += cpu.o diff --git a/arch/blackfin/mach-bf537/boards/Makefile b/arch/blackfin/mach-bf537/boards/Makefile new file mode 100644 index 0000000..23323ca --- /dev/null +++ b/arch/blackfin/mach-bf537/boards/Makefile @@ -0,0 +1,9 @@ +# +# arch/blackfin/mach-bf537/boards/Makefile +# + +obj-y += eth_mac.o +obj-$(CONFIG_GENERIC_BOARD) += generic_board.o +obj-$(CONFIG_BFIN537_STAMP) += stamp.o led.o +obj-$(CONFIG_BFIN537_BLUETECHNIX_CM) += cm_bf537.o +obj-$(CONFIG_PNAV10) += pnav10.o diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537.c b/arch/blackfin/mach-bf537/boards/cm_bf537.c new file mode 100644 index 0000000..6a60618 --- /dev/null +++ b/arch/blackfin/mach-bf537/boards/cm_bf537.c @@ -0,0 +1,364 @@ +/* + * File: arch/blackfin/mach-bf537/boards/cm_bf537.c + * Based on: arch/blackfin/mach-bf533/boards/ezkit.c + * Author: Aidan Williams <aidan@nicta.com.au> + * + * Created: 2005 + * Description: Board description file + * + * Modified: + * Copyright 2005 National ICT Australia (NICTA) + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#include <linux/usb_isp1362.h> +#include <asm/irq.h> +#include <asm/bfin5xx_spi.h> + +/* + * Name the Board for the /proc/cpuinfo + */ +char *bfin_board_name = "Bluetechnix CM BF537"; + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) +/* all SPI peripherals info goes here */ + +#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE) +static struct mtd_partition bfin_spi_flash_partitions[] = { + { + .name = "bootloader", + .size = 0x00020000, + .offset = 0, + .mask_flags = MTD_CAP_ROM + },{ + .name = "kernel", + .size = 0xe0000, + .offset = 0x20000 + },{ + .name = "file system", + .size = 0x700000, + .offset = 0x00100000, + } +}; + +static struct flash_platform_data bfin_spi_flash_data = { + .name = "m25p80", + .parts = bfin_spi_flash_partitions, + .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions), + .type = "m25p64", +}; + +/* SPI flash chip (m25p64) */ +static struct bfin5xx_spi_chip spi_flash_chip_info = { + .enable_dma = 0, /* use dma transfer with this chip*/ + .bits_per_word = 8, +}; +#endif + +#if defined(CONFIG_SPI_ADC_BF533) || defined(CONFIG_SPI_ADC_BF533_MODULE) +/* SPI ADC chip */ +static struct bfin5xx_spi_chip spi_adc_chip_info = { + .enable_dma = 1, /* use dma transfer with this chip*/ + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) +static struct bfin5xx_spi_chip ad1836_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_AD9960) || defined(CONFIG_AD9960_MODULE) +static struct bfin5xx_spi_chip ad9960_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE) +static struct bfin5xx_spi_chip spi_mmc_chip_info = { + .enable_dma = 1, + .bits_per_word = 8, +}; +#endif + +static struct spi_board_info bfin_spi_board_info[] __initdata = { +#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE) + { + /* the modalias must be the same as spi device driver name */ + .modalias = "m25p80", /* Name of spi_driver for this device */ + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/ + .platform_data = &bfin_spi_flash_data, + .controller_data = &spi_flash_chip_info, + .mode = SPI_MODE_3, + }, +#endif + +#if defined(CONFIG_SPI_ADC_BF533) || defined(CONFIG_SPI_ADC_BF533_MODULE) + { + .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */ + .max_speed_hz = 6250000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 1, /* Framework chip select. */ + .platform_data = NULL, /* No spi_driver specific config */ + .controller_data = &spi_adc_chip_info, + }, +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) + { + .modalias = "ad1836-spi", + .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT, + .controller_data = &ad1836_spi_chip_info, + }, +#endif + +#if defined(CONFIG_AD9960) || defined(CONFIG_AD9960_MODULE) + { + .modalias = "ad9960-spi", + .max_speed_hz = 10000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 1, + .controller_data = &ad9960_spi_chip_info, + }, +#endif + +#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE) + { + .modalias = "spi_mmc_dummy", + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 7, + .platform_data = NULL, + .controller_data = &spi_mmc_chip_info, + .mode = SPI_MODE_3, + }, + { + .modalias = "spi_mmc", + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = CONFIG_SPI_MMC_CS_CHAN, + .platform_data = NULL, + .controller_data = &spi_mmc_chip_info, + .mode = SPI_MODE_3, + }, +#endif +}; + +/* SPI controller data */ +static struct bfin5xx_spi_master spi_bfin_master_info = { + .num_chipselect = 8, + .enable_dma = 1, /* master has the ability to do dma transfer */ +}; + +static struct platform_device spi_bfin_master_device = { + .name = "bfin-spi-master", + .id = 1, /* Bus number */ + .dev = { + .platform_data = &spi_bfin_master_info, /* Passed to driver */ + }, +}; +#endif /* spi master and devices */ + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) +static struct platform_device rtc_device = { + .name = "rtc-bfin", + .id = -1, +}; +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) +static struct resource smc91x_resources[] = { + { + .start = 0x20200300, + .end = 0x20200300 + 16, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF14, + .end = IRQ_PF14, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; +#endif + +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) +static struct resource isp1362_hcd_resources[] = { + { + .start = 0x20308000, + .end = 0x20308000, + .flags = IORESOURCE_MEM, + },{ + .start = 0x20308004, + .end = 0x20308004, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PG15, + .end = IRQ_PG15, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct isp1362_platform_data isp1362_priv = { + .sel15Kres = 1, + .clknotstop = 0, + .oc_enable = 0, + .int_act_high = 0, + .int_edge_triggered = 0, + .remote_wakeup_connected = 0, + .no_power_switching = 1, + .power_switching_mode = 0, +}; + +static struct platform_device isp1362_hcd_device = { + .name = "isp1362-hcd", + .id = 0, + .dev = { + .platform_data = &isp1362_priv, + }, + .num_resources = ARRAY_SIZE(isp1362_hcd_resources), + .resource = isp1362_hcd_resources, +}; +#endif + +#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE) +static struct resource net2272_bfin_resources[] = { + { + .start = 0x20200000, + .end = 0x20200000 + 0x100, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF7, + .end = IRQ_PF7, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct platform_device net2272_bfin_device = { + .name = "net2272", + .id = -1, + .num_resources = ARRAY_SIZE(net2272_bfin_resources), + .resource = net2272_bfin_resources, +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +static struct resource bfin_uart_resources[] = { + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + },{ + .start = 0xFFC02000, + .end = 0xFFC020FF, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device bfin_uart_device = { + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) +static struct platform_device bfin_sport0_uart_device = { + .name = "bfin-sport-uart", + .id = 0, +}; + +static struct platform_device bfin_sport1_uart_device = { + .name = "bfin-sport-uart", + .id = 1, +}; +#endif + +#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) +static struct platform_device bfin_mac_device = { + .name = "bfin_mac", +}; +#endif + +static struct platform_device *cm_bf537_devices[] __initdata = { +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) + &rtc_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) + &bfin_uart_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) + &bfin_sport0_uart_device, + &bfin_sport1_uart_device, +#endif + +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) + &isp1362_hcd_device, +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + &smc91x_device, +#endif + +#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) + &bfin_mac_device, +#endif + +#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE) + &net2272_bfin_device, +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + &spi_bfin_master_device, +#endif +}; + +static int __init cm_bf537_init(void) +{ + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + platform_add_devices(cm_bf537_devices, ARRAY_SIZE(cm_bf537_devices)); +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info)); +#endif + return 0; +} + +arch_initcall(cm_bf537_init); diff --git a/arch/blackfin/mach-bf537/boards/eth_mac.c b/arch/blackfin/mach-bf537/boards/eth_mac.c new file mode 100644 index 0000000..e129a08 --- /dev/null +++ b/arch/blackfin/mach-bf537/boards/eth_mac.c @@ -0,0 +1,51 @@ +/* + * arch/blackfin/mach-bf537/board/eth_mac.c + * + * Copyright (C) 2007 Analog Devices, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <linux/module.h> +#include <asm/blackfin.h> + +#if defined(CONFIG_GENERIC_BOARD) \ + || defined(CONFIG_BFIN537_STAMP) + +/* + * Currently the MAC address is saved in Flash by U-Boot + */ +#define FLASH_MAC 0x203f0000 + +void get_bf537_ether_addr(char *addr) +{ + unsigned int flash_mac = (unsigned int) FLASH_MAC; + *(u32 *)(&(addr[0])) = bfin_read32(flash_mac); + flash_mac += 4; + *(u16 *)(&(addr[4])) = bfin_read16(flash_mac); +} + +#else + +/* + * Provide MAC address function for other specific board setting + */ +void get_bf537_ether_addr(char *addr) +{ + printk(KERN_WARNING "%s: No valid Ethernet MAC address found\n",__FILE__); +} + +#endif + +EXPORT_SYMBOL(get_bf537_ether_addr); diff --git a/arch/blackfin/mach-bf537/boards/generic_board.c b/arch/blackfin/mach-bf537/boards/generic_board.c new file mode 100644 index 0000000..9019c0e --- /dev/null +++ b/arch/blackfin/mach-bf537/boards/generic_board.c @@ -0,0 +1,445 @@ +/* + * File: arch/blackfin/mach-bf537/boards/generic_board.c + * Based on: arch/blackfin/mach-bf533/boards/ezkit.c + * Author: Aidan Williams <aidan@nicta.com.au> + * + * Created: + * Description: + * + * Modified: + * Copyright 2005 National ICT Australia (NICTA) + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#include <linux/usb_isp1362.h> +#include <asm/irq.h> +#include <asm/bfin5xx_spi.h> +#include <linux/usb_sl811.h> + +/* + * Name the Board for the /proc/cpuinfo + */ +char *bfin_board_name = "UNKNOWN BOARD"; + +/* + * Driver needs to know address, irq and flag pin. + */ + +#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE) +static struct resource bfin_pcmcia_cf_resources[] = { + { + .start = 0x20310000, /* IO PORT */ + .end = 0x20312000, + .flags = IORESOURCE_MEM, + },{ + .start = 0x20311000, /* Attribute Memeory */ + .end = 0x20311FFF, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PROG_INTA, + .end = IRQ_PROG_INTA, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, + },{ + .start = IRQ_PF4, + .end = IRQ_PF4, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, + },{ + .start = 6, /* Card Detect PF6 */ + .end = 6, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device bfin_pcmcia_cf_device = { + .name = "bfin_cf_pcmcia", + .id = -1, + .num_resources = ARRAY_SIZE(bfin_pcmcia_cf_resources), + .resource = bfin_pcmcia_cf_resources, +}; +#endif + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) +static struct platform_device rtc_device = { + .name = "rtc-bfin", + .id = -1, +}; +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) +static struct resource smc91x_resources[] = { + { + .name = "smc91x-regs", + .start = 0x20300300, + .end = 0x20300300 + 16, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PROG_INTB, + .end = IRQ_PROG_INTB, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + },{ + /* + * denotes the flag pin and is used directly if + * CONFIG_IRQCHIP_DEMUX_GPIO is defined. + */ + .start = IRQ_PF7, + .end = IRQ_PF7, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; +#endif + +#if defined(CONFIG_USB_SL811_HCD) || defined(CONFIG_USB_SL811_HCD_MODULE) +static struct resource sl811_hcd_resources[] = { + { + .start = 0x20340000, + .end = 0x20340000, + .flags = IORESOURCE_MEM, + },{ + .start = 0x20340004, + .end = 0x20340004, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PROG_INTA, + .end = IRQ_PROG_INTA, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + },{ + .start = IRQ_PF0 + CONFIG_USB_SL811_BFIN_GPIO, + .end = IRQ_PF0 + CONFIG_USB_SL811_BFIN_GPIO, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +#if defined(CONFIG_USB_SL811_BFIN_USE_VBUS) +void sl811_port_power(struct device *dev, int is_on) +{ + unsigned short mask = (1<<CONFIG_USB_SL811_BFIN_GPIO_VBUS); + + bfin_write_PORT_FER(bfin_read_PORT_FER() & ~mask); + bfin_write_FIO_DIR(bfin_read_FIO_DIR() | mask); + + if (is_on) + bfin_write_FIO_FLAG_S(mask); + else + bfin_write_FIO_FLAG_C(mask); +} +#endif + +static struct sl811_platform_data sl811_priv = { + .potpg = 10, + .power = 250, /* == 500mA */ +#if defined(CONFIG_USB_SL811_BFIN_USE_VBUS) + .port_power = &sl811_port_power, +#endif +}; + +static struct platform_device sl811_hcd_device = { + .name = "sl811-hcd", + .id = 0, + .dev = { + .platform_data = &sl811_priv, + }, + .num_resources = ARRAY_SIZE(sl811_hcd_resources), + .resource = sl811_hcd_resources, +}; + +#endif + +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) +static struct resource isp1362_hcd_resources[] = { + { + .start = 0x20360000, + .end = 0x20360000, + .flags = IORESOURCE_MEM, + },{ + .start = 0x20360004, + .end = 0x20360004, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PROG_INTA, + .end = IRQ_PROG_INTA, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + },{ + .start = IRQ_PF0 + CONFIG_USB_ISP1362_BFIN_GPIO, + .end = IRQ_PF0 + CONFIG_USB_ISP1362_BFIN_GPIO, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct isp1362_platform_data isp1362_priv = { + .sel15Kres = 1, + .clknotstop = 0, + .oc_enable = 0, + .int_act_high = 0, + .int_edge_triggered = 0, + .remote_wakeup_connected = 0, + .no_power_switching = 1, + .power_switching_mode = 0, +}; + +static struct platform_device isp1362_hcd_device = { + .name = "isp1362-hcd", + .id = 0, + .dev = { + .platform_data = &isp1362_priv, + }, + .num_resources = ARRAY_SIZE(isp1362_hcd_resources), + .resource = isp1362_hcd_resources, +}; +#endif + +#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) +static struct platform_device bfin_mac_device = { + .name = "bfin_mac", +}; +#endif + +#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE) +static struct resource net2272_bfin_resources[] = { + { + .start = 0x20300000, + .end = 0x20300000 + 0x100, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF7, + .end = IRQ_PF7, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct platform_device net2272_bfin_device = { + .name = "net2272", + .id = -1, + .num_resources = ARRAY_SIZE(net2272_bfin_resources), + .resource = net2272_bfin_resources, +}; +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) +/* all SPI peripherals info goes here */ + +#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE) +static struct mtd_partition bfin_spi_flash_partitions[] = { + { + .name = "bootloader", + .size = 0x00020000, + .offset = 0, + .mask_flags = MTD_CAP_ROM + },{ + .name = "kernel", + .size = 0xe0000, + .offset = 0x20000 + },{ + .name = "file system", + .size = 0x700000, + .offset = 0x00100000, + } +}; + +static struct flash_platform_data bfin_spi_flash_data = { + .name = "m25p80", + .parts = bfin_spi_flash_partitions, + .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions), + .type = "m25p64", +}; + +/* SPI flash chip (m25p64) */ +static struct bfin5xx_spi_chip spi_flash_chip_info = { + .enable_dma = 0, /* use dma transfer with this chip*/ + .bits_per_word = 8, +}; +#endif + +#if defined(CONFIG_SPI_ADC_BF533) \ + || defined(CONFIG_SPI_ADC_BF533_MODULE) +/* SPI ADC chip */ +static struct bfin5xx_spi_chip spi_adc_chip_info = { + .enable_dma = 1, /* use dma transfer with this chip*/ + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) \ + || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) +static struct bfin5xx_spi_chip ad1836_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_AD9960) || defined(CONFIG_AD9960_MODULE) +static struct bfin5xx_spi_chip ad9960_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +static struct spi_board_info bfin_spi_board_info[] __initdata = { +#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE) + { + /* the modalias must be the same as spi device driver name */ + .modalias = "m25p80", /* Name of spi_driver for this device */ + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 2, /* Framework chip select. On STAMP537 it is SPISSEL1*/ + .platform_data = &bfin_spi_flash_data, + .controller_data = &spi_flash_chip_info, + .mode = SPI_MODE_3, + }, +#endif + +#if defined(CONFIG_SPI_ADC_BF533) || defined(CONFIG_SPI_ADC_BF533_MODULE) + { + .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */ + .max_speed_hz = 6250000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 1, /* Framework chip select. */ + .platform_data = NULL, /* No spi_driver specific config */ + .controller_data = &spi_adc_chip_info, + }, +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) + { + .modalias = "ad1836-spi", + .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT, + .controller_data = &ad1836_spi_chip_info, + }, +#endif + +#if defined(CONFIG_AD9960) || defined(CONFIG_AD9960_MODULE) + { + .modalias = "ad9960-spi", + .max_speed_hz = 10000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 1, + .controller_data = &ad9960_spi_chip_info, + }, +#endif +}; + +/* SPI controller data */ +static struct bfin5xx_spi_master spi_bfin_master_info = { + .num_chipselect = 8, + .enable_dma = 1, /* master has the ability to do dma transfer */ +}; + +static struct platform_device spi_bfin_master_device = { + .name = "bfin-spi-master", + .id = 1, /* Bus number */ + .dev = { + .platform_data = &spi_bfin_master_info, /* Passed to driver */ + }, +}; +#endif /* spi master and devices */ + +#if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE) +static struct platform_device bfin_fb_device = { + .name = "bf537-fb", +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +static struct resource bfin_uart_resources[] = { + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + },{ + .start = 0xFFC02000, + .end = 0xFFC020FF, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device bfin_uart_device = { + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, +}; +#endif + +static struct platform_device *stamp_devices[] __initdata = { +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) + &rtc_device, +#endif + +#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE) + &bfin_pcmcia_cf_device, +#endif + +#if defined(CONFIG_USB_SL811_HCD) || defined(CONFIG_USB_SL811_HCD_MODULE) + &sl811_hcd_device, +#endif + +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) + &isp1362_hcd_device, +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + &smc91x_device, +#endif + +#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) + &bfin_mac_device, +#endif + +#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE) + &net2272_bfin_device, +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + &spi_bfin_master_device, +#endif + +#if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE) + &bfin_fb_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) + &bfin_uart_device, +#endif +}; + +static int __init stamp_init(void) +{ + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices)); +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info)); +#endif + return 0; +} + +arch_initcall(stamp_init); diff --git a/arch/blackfin/mach-bf537/boards/led.S b/arch/blackfin/mach-bf537/boards/led.S new file mode 100644 index 0000000..4e9ea42 --- /dev/null +++ b/arch/blackfin/mach-bf537/boards/led.S @@ -0,0 +1,183 @@ +/**************************************************** + * LED1 ---- PF6 LED2 ---- PF7 * + * LED3 ---- PF8 LED4 ---- PF9 * + * LED5 ---- PF10 LED6 ---- PF11 * + ****************************************************/ + +#include <linux/linkage.h> +#include <asm/blackfin.h> + +/* All functions in this file save the registers they uses. + So there is no need to save any registers before calling them. */ + + .text; + +/* Initialize LEDs. */ + +ENTRY(_led_init) + LINK 12; + [--SP] = P0; + [--SP] = R0; + [--SP] = R1; + [--SP] = R2; + R1 = PF6|PF7|PF8|PF9|PF10|PF11 (Z); + R2 = ~R1; + + P0.H = hi(PORTF_FER); + P0.L = lo(PORTF_FER); + R0 = W[P0](Z); + SSYNC; + R0 = R0 & R2; + W[P0] = R0.L; + SSYNC; + + P0.H = hi(PORTFIO_DIR); + P0.L = lo(PORTFIO_DIR); + R0 = W[P0](Z); + SSYNC; + R0 = R0 | R1; + W[P0] = R0.L; + SSYNC; + + P0.H = hi(PORTFIO_INEN); + P0.L = lo(PORTFIO_INEN); + R0 = W[P0](Z); + SSYNC; + R0 = R0 & R2; + W[P0] = R0.L; + SSYNC; + + R2 = [SP++]; + R1 = [SP++]; + R0 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_init, .-_led_init + +/* Set one LED on. Leave other LEDs unchanged. + It expects the LED number passed through R0. */ + +ENTRY(_led_on) + LINK 12; + [--SP] = P0; + [--SP] = R1; + CALL _led_init; + R1 = 1; + R0 += 5; + R1 <<= R0; + P0.H = hi(PORTFIO); + P0.L = lo(PORTFIO); + R0 = W[P0](Z); + SSYNC; + R0 = R0 | R1; + W[P0] = R0.L; + SSYNC; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_on, .-_led_on + +/* Set one LED off. Leave other LEDs unchanged. */ + +ENTRY(_led_off) + LINK 12; + [--SP] = P0; + [--SP] = R1; + CALL _led_init; + R1 = 1; + R0 += 5; + R1 <<= R0; + R1 = ~R1; + P0.H = hi(PORTFIO); + P0.L = lo(PORTFIO); + R0 = W[P0](Z); + SSYNC; + R0 = R0 & R1; + W[P0] = R0.L; + SSYNC; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_off, .-_led_off + +/* Toggle one LED. Leave other LEDs unchanged. */ + +ENTRY(_led_toggle) + LINK 12; + [--SP] = P0; + [--SP] = R1; + CALL _led_init; + R1 = 1; + R0 += 5; + R1 <<= R0; + P0.H = hi(PORTFIO); + P0.L = lo(PORTFIO); + R0 = W[P0](Z); + SSYNC; + R0 = R0 ^ R1; + W[P0] = R0.L; + SSYNC; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_toggle, .-_led_toggle + +/* Display the number using LEDs in binary format. */ + +ENTRY(_led_disp_num) + LINK 12; + [--SP] = P0; + [--SP] = R1; + [--SP] = R2; + CALL _led_init; + R1 = 0x3f(X); + R0 = R0 & R1; + R2 = 6(X); + R0 <<= R2; + R1 <<= R2; + P0.H = hi(PORTFIO); + P0.L = lo(PORTFIO); + R2 = W[P0](Z); + SSYNC; + R1 = ~R1; + R2 = R2 & R1; + R2 = R2 | R0; + W[P0] = R2.L; + SSYNC; + R2 = [SP++]; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_disp_num, .-_led_disp_num + +/* Toggle the number using LEDs in binary format. */ + +ENTRY(_led_toggle_num) + LINK 12; + [--SP] = P0; + [--SP] = R1; + [--SP] = R2; + CALL _led_init; + R1 = 0x3f(X); + R0 = R0 & R1; + R1 = 6(X); + R0 <<= R1; + P0.H = hi(PORTFIO); + P0.L = lo(PORTFIO); + R1 = W[P0](Z); + SSYNC; + R1 = R1 ^ R0; + W[P0] = R1.L; + SSYNC; + R2 = [SP++]; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_toggle_num, .-_led_toggle_num + diff --git a/arch/blackfin/mach-bf537/boards/pnav10.c b/arch/blackfin/mach-bf537/boards/pnav10.c new file mode 100644 index 0000000..40d3a1b --- /dev/null +++ b/arch/blackfin/mach-bf537/boards/pnav10.c @@ -0,0 +1,523 @@ +/* + * File: arch/blackfin/mach-bf537/boards/stamp.c + * Based on: arch/blackfin/mach-bf533/boards/ezkit.c + * Author: Aidan Williams <aidan@nicta.com.au> + * + * Created: + * Description: + * + * Modified: + * Copyright 2005 National ICT Australia (NICTA) + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) +#include <linux/usb_isp1362.h> +#endif +#include <asm/irq.h> +#include <asm/bfin5xx_spi.h> +#include <linux/usb_sl811.h> + +#include <linux/spi/ad7877.h> + +/* + * Name the Board for the /proc/cpuinfo + */ +char *bfin_board_name = "PNAV-1.0"; + +/* + * Driver needs to know address, irq and flag pin. + */ + +#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE) +static struct resource bfin_pcmcia_cf_resources[] = { + { + .start = 0x20310000, /* IO PORT */ + .end = 0x20312000, + .flags = IORESOURCE_MEM, + },{ + .start = 0x20311000, /* Attribute Memeory */ + .end = 0x20311FFF, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF4, + .end = IRQ_PF4, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, + },{ + .start = 6, /* Card Detect PF6 */ + .end = 6, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device bfin_pcmcia_cf_device = { + .name = "bfin_cf_pcmcia", + .id = -1, + .num_resources = ARRAY_SIZE(bfin_pcmcia_cf_resources), + .resource = bfin_pcmcia_cf_resources, +}; +#endif + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) +static struct platform_device rtc_device = { + .name = "rtc-bfin", + .id = -1, +}; +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) +static struct resource smc91x_resources[] = { + { + .name = "smc91x-regs", + .start = 0x20300300, + .end = 0x20300300 + 16, + .flags = IORESOURCE_MEM, + },{ + + .start = IRQ_PF7, + .end = IRQ_PF7, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; +#endif + +#if defined(CONFIG_USB_SL811_HCD) || defined(CONFIG_USB_SL811_HCD_MODULE) +static struct resource sl811_hcd_resources[] = { + { + .start = 0x20340000, + .end = 0x20340000, + .flags = IORESOURCE_MEM, + },{ + .start = 0x20340004, + .end = 0x20340004, + .flags = IORESOURCE_MEM, + },{ + .start = CONFIG_USB_SL811_BFIN_IRQ, + .end = CONFIG_USB_SL811_BFIN_IRQ, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +#if defined(CONFIG_USB_SL811_BFIN_USE_VBUS) +void sl811_port_power(struct device *dev, int is_on) +{ + unsigned short mask = (1 << CONFIG_USB_SL811_BFIN_GPIO_VBUS); + + bfin_write_PORT_FER(bfin_read_PORT_FER() & ~mask); + bfin_write_FIO_DIR(bfin_read_FIO_DIR() | mask); + + if (is_on) + bfin_write_FIO_FLAG_S(mask); + else + bfin_write_FIO_FLAG_C(mask); +} +#endif + +static struct sl811_platform_data sl811_priv = { + .potpg = 10, + .power = 250, /* == 500mA */ +#if defined(CONFIG_USB_SL811_BFIN_USE_VBUS) + .port_power = &sl811_port_power, +#endif +}; + +static struct platform_device sl811_hcd_device = { + .name = "sl811-hcd", + .id = 0, + .dev = { + .platform_data = &sl811_priv, + }, + .num_resources = ARRAY_SIZE(sl811_hcd_resources), + .resource = sl811_hcd_resources, +}; +#endif + +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) +static struct resource isp1362_hcd_resources[] = { + { + .start = 0x20360000, + .end = 0x20360000, + .flags = IORESOURCE_MEM, + },{ + .start = 0x20360004, + .end = 0x20360004, + .flags = IORESOURCE_MEM, + },{ + .start = CONFIG_USB_ISP1362_BFIN_GPIO_IRQ, + .end = CONFIG_USB_ISP1362_BFIN_GPIO_IRQ, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct isp1362_platform_data isp1362_priv = { + .sel15Kres = 1, + .clknotstop = 0, + .oc_enable = 0, + .int_act_high = 0, + .int_edge_triggered = 0, + .remote_wakeup_connected = 0, + .no_power_switching = 1, + .power_switching_mode = 0, +}; + +static struct platform_device isp1362_hcd_device = { + .name = "isp1362-hcd", + .id = 0, + .dev = { + .platform_data = &isp1362_priv, + }, + .num_resources = ARRAY_SIZE(isp1362_hcd_resources), + .resource = isp1362_hcd_resources, +}; +#endif + +#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) +static struct platform_device bfin_mac_device = { + .name = "bfin_mac", +}; +#endif + +#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE) +static struct resource net2272_bfin_resources[] = { + { + .start = 0x20300000, + .end = 0x20300000 + 0x100, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF7, + .end = IRQ_PF7, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct platform_device net2272_bfin_device = { + .name = "net2272", + .id = -1, + .num_resources = ARRAY_SIZE(net2272_bfin_resources), + .resource = net2272_bfin_resources, +}; +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) +/* all SPI peripherals info goes here */ + +#if defined(CONFIG_MTD_M25P80) \ + || defined(CONFIG_MTD_M25P80_MODULE) +static struct mtd_partition bfin_spi_flash_partitions[] = { + { + .name = "bootloader", + .size = 0x00020000, + .offset = 0, + .mask_flags = MTD_CAP_ROM + },{ + .name = "kernel", + .size = 0xe0000, + .offset = 0x20000 + },{ + .name = "file system", + .size = 0x700000, + .offset = 0x00100000, + } +}; + +static struct flash_platform_data bfin_spi_flash_data = { + .name = "m25p80", + .parts = bfin_spi_flash_partitions, + .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions), + .type = "m25p64", +}; + +/* SPI flash chip (m25p64) */ +static struct bfin5xx_spi_chip spi_flash_chip_info = { + .enable_dma = 0, /* use dma transfer with this chip*/ + .bits_per_word = 8, +}; +#endif + +#if defined(CONFIG_SPI_ADC_BF533) \ + || defined(CONFIG_SPI_ADC_BF533_MODULE) +/* SPI ADC chip */ +static struct bfin5xx_spi_chip spi_adc_chip_info = { + .enable_dma = 1, /* use dma transfer with this chip*/ + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) \ + || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) +static struct bfin5xx_spi_chip ad1836_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_AD9960) || defined(CONFIG_AD9960_MODULE) +static struct bfin5xx_spi_chip ad9960_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE) +static struct bfin5xx_spi_chip spi_mmc_chip_info = { + .enable_dma = 1, + .bits_per_word = 8, +}; +#endif + +#if defined(CONFIG_PBX) +static struct bfin5xx_spi_chip spi_si3xxx_chip_info = { + .ctl_reg = 0x4, /* send zero */ + .enable_dma = 0, + .bits_per_word = 8, + .cs_change_per_word = 1, +}; +#endif + + +#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE) +static struct bfin5xx_spi_chip spi_ad7877_chip_info = { + .cs_change_per_word = 1, + .enable_dma = 0, + .bits_per_word = 16, +}; + +static const struct ad7877_platform_data bfin_ad7877_ts_info = { + .model = 7877, + .vref_delay_usecs = 50, /* internal, no capacitor */ + .x_plate_ohms = 419, + .y_plate_ohms = 486, + .pressure_max = 1000, + .pressure_min = 0, + .stopacq_polarity = 1, + .first_conversion_delay = 3, + .acquisition_time = 1, + .averaging = 1, + .pen_down_acc_interval = 1, +}; +#endif + +static struct spi_board_info bfin_spi_board_info[] __initdata = { +#if defined(CONFIG_MTD_M25P80) \ + || defined(CONFIG_MTD_M25P80_MODULE) + { + /* the modalias must be the same as spi device driver name */ + .modalias = "m25p80", /* Name of spi_driver for this device */ + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/ + .platform_data = &bfin_spi_flash_data, + .controller_data = &spi_flash_chip_info, + .mode = SPI_MODE_3, + }, +#endif + +#if defined(CONFIG_SPI_ADC_BF533) \ + || defined(CONFIG_SPI_ADC_BF533_MODULE) + { + .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */ + .max_speed_hz = 6250000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 1, /* Framework chip select. */ + .platform_data = NULL, /* No spi_driver specific config */ + .controller_data = &spi_adc_chip_info, + }, +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) \ + || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) + { + .modalias = "ad1836-spi", + .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT, + .controller_data = &ad1836_spi_chip_info, + }, +#endif +#if defined(CONFIG_AD9960) || defined(CONFIG_AD9960_MODULE) + { + .modalias = "ad9960-spi", + .max_speed_hz = 10000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 1, + .controller_data = &ad9960_spi_chip_info, + }, +#endif +#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE) + { + .modalias = "spi_mmc_dummy", + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 7, + .platform_data = NULL, + .controller_data = &spi_mmc_chip_info, + .mode = SPI_MODE_3, + }, + { + .modalias = "spi_mmc", + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = CONFIG_SPI_MMC_CS_CHAN, + .platform_data = NULL, + .controller_data = &spi_mmc_chip_info, + .mode = SPI_MODE_3, + }, +#endif +#if defined(CONFIG_PBX) + { + .modalias = "fxs-spi", + .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 3, + .controller_data= &spi_si3xxx_chip_info, + .mode = SPI_MODE_3, + }, + { + .modalias = "fxo-spi", + .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 2, + .controller_data= &spi_si3xxx_chip_info, + .mode = SPI_MODE_3, + }, +#endif +#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE) +{ + .modalias = "ad7877", + .platform_data = &bfin_ad7877_ts_info, + .irq = IRQ_PF2, + .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 5, + .controller_data = &spi_ad7877_chip_info, +}, +#endif + +}; + +/* SPI controller data */ +static struct bfin5xx_spi_master spi_bfin_master_info = { + .num_chipselect = 8, + .enable_dma = 1, /* master has the ability to do dma transfer */ +}; + +static struct platform_device spi_bfin_master_device = { + .name = "bfin-spi-master", + .id = 1, /* Bus number */ + .dev = { + .platform_data = &spi_bfin_master_info, /* Passed to driver */ + }, +}; +#endif /* spi master and devices */ + +#if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE) +static struct platform_device bfin_fb_device = { + .name = "bf537-fb", +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +static struct resource bfin_uart_resources[] = { + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + },{ + .start = 0xFFC02000, + .end = 0xFFC020FF, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device bfin_uart_device = { + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, +}; +#endif + + +static struct platform_device *stamp_devices[] __initdata = { +#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE) + &bfin_pcmcia_cf_device, +#endif + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) + &rtc_device, +#endif + +#if defined(CONFIG_USB_SL811_HCD) || defined(CONFIG_USB_SL811_HCD_MODULE) + &sl811_hcd_device, +#endif + +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) + &isp1362_hcd_device, +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + &smc91x_device, +#endif + +#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) + &bfin_mac_device, +#endif + +#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE) + &net2272_bfin_device, +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + &spi_bfin_master_device, +#endif + +#if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE) + &bfin_fb_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) + &bfin_uart_device, +#endif +}; + +static int __init stamp_init(void) +{ + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices)); +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + spi_register_board_info(bfin_spi_board_info, + ARRAY_SIZE(bfin_spi_board_info)); +#endif + return 0; +} + +arch_initcall(stamp_init); diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c new file mode 100644 index 0000000..ba2f875 --- /dev/null +++ b/arch/blackfin/mach-bf537/boards/stamp.c @@ -0,0 +1,615 @@ +/* + * File: arch/blackfin/mach-bf537/boards/stamp.c + * Based on: arch/blackfin/mach-bf533/boards/ezkit.c + * Author: Aidan Williams <aidan@nicta.com.au> + * + * Created: + * Description: + * + * Modified: + * Copyright 2005 National ICT Australia (NICTA) + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) +#include <linux/usb_isp1362.h> +#endif +#include <asm/irq.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <asm/bfin5xx_spi.h> +#include <linux/usb_sl811.h> + +#include <linux/spi/ad7877.h> + +/* + * Name the Board for the /proc/cpuinfo + */ +char *bfin_board_name = "ADDS-BF537-STAMP"; + +/* + * Driver needs to know address, irq and flag pin. + */ + +#define ISP1761_BASE 0x203C0000 +#define ISP1761_IRQ IRQ_PF7 + +#if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE) +static struct resource bfin_isp1761_resources[] = { + [0] = { + .name = "isp1761-regs", + .start = ISP1761_BASE + 0x00000000, + .end = ISP1761_BASE + 0x000fffff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = ISP1761_IRQ, + .end = ISP1761_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device bfin_isp1761_device = { + .name = "isp1761", + .id = 0, + .num_resources = ARRAY_SIZE(bfin_isp1761_resources), + .resource = bfin_isp1761_resources, +}; + +static struct platform_device *bfin_isp1761_devices[] = { + &bfin_isp1761_device, +}; + +int __init bfin_isp1761_init(void) +{ + unsigned int num_devices=ARRAY_SIZE(bfin_isp1761_devices); + + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + set_irq_type(ISP1761_IRQ, IRQF_TRIGGER_FALLING); + + return platform_add_devices(bfin_isp1761_devices, num_devices); +} + +void __exit bfin_isp1761_exit(void) +{ + platform_device_unregister(&bfin_isp1761_device); +} + +arch_initcall(bfin_isp1761_init); +#endif + +#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE) +static struct resource bfin_pcmcia_cf_resources[] = { + { + .start = 0x20310000, /* IO PORT */ + .end = 0x20312000, + .flags = IORESOURCE_MEM, + },{ + .start = 0x20311000, /* Attribute Memeory */ + .end = 0x20311FFF, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF4, + .end = IRQ_PF4, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, + },{ + .start = 6, /* Card Detect PF6 */ + .end = 6, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device bfin_pcmcia_cf_device = { + .name = "bfin_cf_pcmcia", + .id = -1, + .num_resources = ARRAY_SIZE(bfin_pcmcia_cf_resources), + .resource = bfin_pcmcia_cf_resources, +}; +#endif + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) +static struct platform_device rtc_device = { + .name = "rtc-bfin", + .id = -1, +}; +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) +static struct resource smc91x_resources[] = { + { + .name = "smc91x-regs", + .start = 0x20300300, + .end = 0x20300300 + 16, + .flags = IORESOURCE_MEM, + },{ + + .start = IRQ_PF7, + .end = IRQ_PF7, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; +#endif + +#if defined(CONFIG_USB_SL811_HCD) || defined(CONFIG_USB_SL811_HCD_MODULE) +static struct resource sl811_hcd_resources[] = { + { + .start = 0x20340000, + .end = 0x20340000, + .flags = IORESOURCE_MEM, + },{ + .start = 0x20340004, + .end = 0x20340004, + .flags = IORESOURCE_MEM, + },{ + .start = CONFIG_USB_SL811_BFIN_IRQ, + .end = CONFIG_USB_SL811_BFIN_IRQ, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +#if defined(CONFIG_USB_SL811_BFIN_USE_VBUS) +void sl811_port_power(struct device *dev, int is_on) +{ + unsigned short mask = (1 << CONFIG_USB_SL811_BFIN_GPIO_VBUS); + + bfin_write_PORT_FER(bfin_read_PORT_FER() & ~mask); + bfin_write_FIO_DIR(bfin_read_FIO_DIR() | mask); + + if (is_on) + bfin_write_FIO_FLAG_S(mask); + else + bfin_write_FIO_FLAG_C(mask); +} +#endif + +static struct sl811_platform_data sl811_priv = { + .potpg = 10, + .power = 250, /* == 500mA */ +#if defined(CONFIG_USB_SL811_BFIN_USE_VBUS) + .port_power = &sl811_port_power, +#endif +}; + +static struct platform_device sl811_hcd_device = { + .name = "sl811-hcd", + .id = 0, + .dev = { + .platform_data = &sl811_priv, + }, + .num_resources = ARRAY_SIZE(sl811_hcd_resources), + .resource = sl811_hcd_resources, +}; +#endif + +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) +static struct resource isp1362_hcd_resources[] = { + { + .start = 0x20360000, + .end = 0x20360000, + .flags = IORESOURCE_MEM, + },{ + .start = 0x20360004, + .end = 0x20360004, + .flags = IORESOURCE_MEM, + },{ + .start = CONFIG_USB_ISP1362_BFIN_GPIO_IRQ, + .end = CONFIG_USB_ISP1362_BFIN_GPIO_IRQ, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct isp1362_platform_data isp1362_priv = { + .sel15Kres = 1, + .clknotstop = 0, + .oc_enable = 0, + .int_act_high = 0, + .int_edge_triggered = 0, + .remote_wakeup_connected = 0, + .no_power_switching = 1, + .power_switching_mode = 0, +}; + +static struct platform_device isp1362_hcd_device = { + .name = "isp1362-hcd", + .id = 0, + .dev = { + .platform_data = &isp1362_priv, + }, + .num_resources = ARRAY_SIZE(isp1362_hcd_resources), + .resource = isp1362_hcd_resources, +}; +#endif + +#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) +static struct platform_device bfin_mac_device = { + .name = "bfin_mac", +}; +#endif + +#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE) +static struct resource net2272_bfin_resources[] = { + { + .start = 0x20300000, + .end = 0x20300000 + 0x100, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF7, + .end = IRQ_PF7, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct platform_device net2272_bfin_device = { + .name = "net2272", + .id = -1, + .num_resources = ARRAY_SIZE(net2272_bfin_resources), + .resource = net2272_bfin_resources, +}; +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) +/* all SPI peripherals info goes here */ + +#if defined(CONFIG_MTD_M25P80) \ + || defined(CONFIG_MTD_M25P80_MODULE) +static struct mtd_partition bfin_spi_flash_partitions[] = { + { + .name = "bootloader", + .size = 0x00020000, + .offset = 0, + .mask_flags = MTD_CAP_ROM + },{ + .name = "kernel", + .size = 0xe0000, + .offset = 0x20000 + },{ + .name = "file system", + .size = 0x700000, + .offset = 0x00100000, + } +}; + +static struct flash_platform_data bfin_spi_flash_data = { + .name = "m25p80", + .parts = bfin_spi_flash_partitions, + .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions), + .type = "m25p64", +}; + +/* SPI flash chip (m25p64) */ +static struct bfin5xx_spi_chip spi_flash_chip_info = { + .enable_dma = 0, /* use dma transfer with this chip*/ + .bits_per_word = 8, +}; +#endif + +#if defined(CONFIG_SPI_ADC_BF533) \ + || defined(CONFIG_SPI_ADC_BF533_MODULE) +/* SPI ADC chip */ +static struct bfin5xx_spi_chip spi_adc_chip_info = { + .enable_dma = 1, /* use dma transfer with this chip*/ + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) \ + || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) +static struct bfin5xx_spi_chip ad1836_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_AD9960) || defined(CONFIG_AD9960_MODULE) +static struct bfin5xx_spi_chip ad9960_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE) +static struct bfin5xx_spi_chip spi_mmc_chip_info = { + .enable_dma = 1, + .bits_per_word = 8, +}; +#endif + +#if defined(CONFIG_PBX) +static struct bfin5xx_spi_chip spi_si3xxx_chip_info = { + .ctl_reg = 0x4, /* send zero */ + .enable_dma = 0, + .bits_per_word = 8, + .cs_change_per_word = 1, +}; +#endif + +#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE) +static struct bfin5xx_spi_chip ad5304_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE) +static struct bfin5xx_spi_chip spi_ad7877_chip_info = { +// .cs_change_per_word = 1, + .enable_dma = 0, + .bits_per_word = 16, +}; + +static const struct ad7877_platform_data bfin_ad7877_ts_info = { + .model = 7877, + .vref_delay_usecs = 50, /* internal, no capacitor */ + .x_plate_ohms = 419, + .y_plate_ohms = 486, + .pressure_max = 1000, + .pressure_min = 0, + .stopacq_polarity = 1, + .first_conversion_delay = 3, + .acquisition_time = 1, + .averaging = 1, + .pen_down_acc_interval = 1, +}; +#endif + +static struct spi_board_info bfin_spi_board_info[] __initdata = { +#if defined(CONFIG_MTD_M25P80) \ + || defined(CONFIG_MTD_M25P80_MODULE) + { + /* the modalias must be the same as spi device driver name */ + .modalias = "m25p80", /* Name of spi_driver for this device */ + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/ + .platform_data = &bfin_spi_flash_data, + .controller_data = &spi_flash_chip_info, + .mode = SPI_MODE_3, + }, +#endif + +#if defined(CONFIG_SPI_ADC_BF533) \ + || defined(CONFIG_SPI_ADC_BF533_MODULE) + { + .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */ + .max_speed_hz = 6250000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 1, /* Framework chip select. */ + .platform_data = NULL, /* No spi_driver specific config */ + .controller_data = &spi_adc_chip_info, + }, +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) \ + || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) + { + .modalias = "ad1836-spi", + .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT, + .controller_data = &ad1836_spi_chip_info, + }, +#endif +#if defined(CONFIG_AD9960) || defined(CONFIG_AD9960_MODULE) + { + .modalias = "ad9960-spi", + .max_speed_hz = 10000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 1, + .controller_data = &ad9960_spi_chip_info, + }, +#endif +#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE) + { + .modalias = "spi_mmc_dummy", + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 0, + .platform_data = NULL, + .controller_data = &spi_mmc_chip_info, + .mode = SPI_MODE_3, + }, + { + .modalias = "spi_mmc", + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = CONFIG_SPI_MMC_CS_CHAN, + .platform_data = NULL, + .controller_data = &spi_mmc_chip_info, + .mode = SPI_MODE_3, + }, +#endif +#if defined(CONFIG_PBX) + { + .modalias = "fxs-spi", + .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 3, + .controller_data= &spi_si3xxx_chip_info, + .mode = SPI_MODE_3, + }, + { + .modalias = "fxo-spi", + .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 2, + .controller_data= &spi_si3xxx_chip_info, + .mode = SPI_MODE_3, + }, +#endif +#if defined(CONFIG_AD5304) || defined(CONFIG_AD5304_MODULE) + { + .modalias = "ad5304_spi", + .max_speed_hz = 1250000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 2, + .platform_data = NULL, + .controller_data = &ad5304_chip_info, + .mode = SPI_MODE_2, + }, +#endif +#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE) + { + .modalias = "ad7877", + .platform_data = &bfin_ad7877_ts_info, + .irq = IRQ_PF6, + .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 1, + .controller_data = &spi_ad7877_chip_info, + }, +#endif +}; + +/* SPI controller data */ +static struct bfin5xx_spi_master spi_bfin_master_info = { + .num_chipselect = 8, + .enable_dma = 1, /* master has the ability to do dma transfer */ +}; + +static struct platform_device spi_bfin_master_device = { + .name = "bfin-spi-master", + .id = 1, /* Bus number */ + .dev = { + .platform_data = &spi_bfin_master_info, /* Passed to driver */ + }, +}; +#endif /* spi master and devices */ + +#if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE) +static struct platform_device bfin_fb_device = { + .name = "bf537-fb", +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +static struct resource bfin_uart_resources[] = { + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + },{ + .start = 0xFFC02000, + .end = 0xFFC020FF, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device bfin_uart_device = { + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, +}; +#endif + +#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE) +static struct platform_device i2c_bfin_twi_device = { + .name = "i2c-bfin-twi", + .id = 0, +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) +static struct platform_device bfin_sport0_uart_device = { + .name = "bfin-sport-uart", + .id = 0, +}; + +static struct platform_device bfin_sport1_uart_device = { + .name = "bfin-sport-uart", + .id = 1, +}; +#endif + +static struct platform_device *stamp_devices[] __initdata = { +#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE) + &bfin_pcmcia_cf_device, +#endif + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) + &rtc_device, +#endif + +#if defined(CONFIG_USB_SL811_HCD) || defined(CONFIG_USB_SL811_HCD_MODULE) + &sl811_hcd_device, +#endif + +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) + &isp1362_hcd_device, +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + &smc91x_device, +#endif + +#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) + &bfin_mac_device, +#endif + +#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE) + &net2272_bfin_device, +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + &spi_bfin_master_device, +#endif + +#if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE) + &bfin_fb_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) + &bfin_uart_device, +#endif + +#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE) + &i2c_bfin_twi_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) + &bfin_sport0_uart_device, + &bfin_sport1_uart_device, +#endif +}; + +static int __init stamp_init(void) +{ + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices)); +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + spi_register_board_info(bfin_spi_board_info, + ARRAY_SIZE(bfin_spi_board_info)); +#endif + return 0; +} + +arch_initcall(stamp_init); diff --git a/arch/blackfin/mach-bf537/cpu.c b/arch/blackfin/mach-bf537/cpu.c new file mode 100644 index 0000000..2d83b7e --- /dev/null +++ b/arch/blackfin/mach-bf537/cpu.c @@ -0,0 +1,161 @@ +/* + * File: arch/blackfin/mach-bf537/cpu.c + * Based on: + * Author: michael.kang@analog.com + * + * Created: + * Description: clock scaling for the bf537 + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/cpufreq.h> +#include <asm/dpmc.h> +#include <linux/fs.h> +#include <asm/bfin-global.h> + +/* CONFIG_CLKIN_HZ=11059200 */ +#define VCO5 (CONFIG_CLKIN_HZ*45) /*497664000 */ +#define VCO4 (CONFIG_CLKIN_HZ*36) /*398131200 */ +#define VCO3 (CONFIG_CLKIN_HZ*27) /*298598400 */ +#define VCO2 (CONFIG_CLKIN_HZ*18) /*199065600 */ +#define VCO1 (CONFIG_CLKIN_HZ*9) /*99532800 */ +#define VCO(x) VCO##x + +#define FREQ(x) {VCO(x),VCO(x)/4},{VCO(x),VCO(x)/2},{VCO(x),VCO(x)} +/* frequency */ +static struct cpufreq_frequency_table bf537_freq_table[] = { + FREQ(1), + FREQ(3), + {VCO4, VCO4 / 2}, {VCO4, VCO4}, + FREQ(5), + {0, CPUFREQ_TABLE_END}, +}; + +/* + * dpmc_fops->ioctl() + * static int dpmc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) + */ +static int bf537_getfreq(unsigned int cpu) +{ + unsigned long cclk_mhz, vco_mhz; + + /* The driver only support single cpu */ + if (cpu == 0) + dpmc_fops.ioctl(NULL, NULL, IOCTL_GET_CORECLOCK, &cclk_mhz); + else + cclk_mhz = -1; + return cclk_mhz; +} + +static int bf537_target(struct cpufreq_policy *policy, + unsigned int target_freq, unsigned int relation) +{ + unsigned long cclk_mhz; + unsigned long vco_mhz; + unsigned long flags; + unsigned int index, vco_index; + int i; + + struct cpufreq_freqs freqs; + if (cpufreq_frequency_table_target + (policy, bf537_freq_table, target_freq, relation, &index)) + return -EINVAL; + cclk_mhz = bf537_freq_table[index].frequency; + vco_mhz = bf537_freq_table[index].index; + + dpmc_fops.ioctl(NULL, NULL, IOCTL_CHANGE_FREQUENCY, &vco_mhz); + freqs.old = bf537_getfreq(0); + freqs.new = cclk_mhz; + freqs.cpu = 0; + + pr_debug("cclk begin change to cclk %d,vco=%d,index=%d,target=%d,oldfreq=%d\n", + cclk_mhz, vco_mhz, index, target_freq, freqs.old); + + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + local_irq_save(flags); + dpmc_fops.ioctl(NULL, NULL, IOCTL_SET_CCLK, &cclk_mhz); + local_irq_restore(flags); + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + + vco_mhz = get_vco(); + cclk_mhz = get_cclk(); + return 0; +} + +/* make sure that only the "userspace" governor is run -- anything else wouldn't make sense on + * this platform, anyway. + */ +static int bf537_verify_speed(struct cpufreq_policy *policy) +{ + return cpufreq_frequency_table_verify(policy, &bf537_freq_table); +} + +static int __init __bf537_cpu_init(struct cpufreq_policy *policy) +{ + int result; + + if (policy->cpu != 0) + return -EINVAL; + + policy->governor = CPUFREQ_DEFAULT_GOVERNOR; + + policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; + /*Now ,only support one cpu */ + policy->cur = bf537_getfreq(0); + cpufreq_frequency_table_get_attr(bf537_freq_table, policy->cpu); + return cpufreq_frequency_table_cpuinfo(policy, bf537_freq_table); +} + +static struct freq_attr *bf537_freq_attr[] = { + &cpufreq_freq_attr_scaling_available_freqs, + NULL, +}; + +static struct cpufreq_driver bf537_driver = { + .verify = bf537_verify_speed, + .target = bf537_target, + .get = bf537_getfreq, + .init = __bf537_cpu_init, + .name = "bf537", + .owner = THIS_MODULE, + .attr = bf537_freq_attr, +}; + +static int __init bf537_cpu_init(void) +{ + return cpufreq_register_driver(&bf537_driver); +} + +static void __exit bf537_cpu_exit(void) +{ + cpufreq_unregister_driver(&bf537_driver); +} + +MODULE_AUTHOR("Mickael Kang"); +MODULE_DESCRIPTION("cpufreq driver for BF537 CPU"); +MODULE_LICENSE("GPL"); + +module_init(bf537_cpu_init); +module_exit(bf537_cpu_exit); diff --git a/arch/blackfin/mach-bf537/head.S b/arch/blackfin/mach-bf537/head.S new file mode 100644 index 0000000..d104e1d8 --- /dev/null +++ b/arch/blackfin/mach-bf537/head.S @@ -0,0 +1,602 @@ +/* + * File: arch/blackfin/mach-bf537/head.S + * Based on: arch/blackfin/mach-bf533/head.S + * Author: Jeff Dionne <jeff@uclinux.org> COPYRIGHT 1998 D. Jeff Dionne + * + * Created: 1998 + * Description: Startup code for Blackfin BF537 + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> +#include <asm/blackfin.h> +#if CONFIG_BFIN_KERNEL_CLOCK +#include <asm/mach/mem_init.h> +#endif + +.global __rambase +.global __ramstart +.global __ramend +.extern ___bss_stop +.extern ___bss_start +.extern _bf53x_relocate_l1_mem + +#define INITIAL_STACK 0xFFB01000 + +.text + +ENTRY(__start) +ENTRY(__stext) + /* R0: argument of command line string, passed from uboot, save it */ + R7 = R0; + /* Set the SYSCFG register */ + R0 = 0x36; + SYSCFG = R0; /*Enable Cycle Counter and Nesting Of Interrupts(3rd Bit)*/ + R0 = 0; + + /* Clear Out All the data and pointer Registers*/ + R1 = R0; + R2 = R0; + R3 = R0; + R4 = R0; + R5 = R0; + R6 = R0; + + P0 = R0; + P1 = R0; + P2 = R0; + P3 = R0; + P4 = R0; + P5 = R0; + + LC0 = r0; + LC1 = r0; + L0 = r0; + L1 = r0; + L2 = r0; + L3 = r0; + + /* Clear Out All the DAG Registers*/ + B0 = r0; + B1 = r0; + B2 = r0; + B3 = r0; + + I0 = r0; + I1 = r0; + I2 = r0; + I3 = r0; + + M0 = r0; + M1 = r0; + M2 = r0; + M3 = r0; + + /* Turn off the icache */ + p0.l = (IMEM_CONTROL & 0xFFFF); + p0.h = (IMEM_CONTROL >> 16); + R1 = [p0]; + R0 = ~ENICPLB; + R0 = R0 & R1; + + /* Anomaly 05000125 */ +#ifdef ANOMALY_05000125 + CLI R2; + SSYNC; +#endif + [p0] = R0; + SSYNC; +#ifdef ANOMALY_05000125 + STI R2; +#endif + + /* Turn off the dcache */ + p0.l = (DMEM_CONTROL & 0xFFFF); + p0.h = (DMEM_CONTROL >> 16); + R1 = [p0]; + R0 = ~ENDCPLB; + R0 = R0 & R1; + + /* Anomaly 05000125 */ +#ifdef ANOMALY_05000125 + CLI R2; + SSYNC; +#endif + [p0] = R0; + SSYNC; +#ifdef ANOMALY_05000125 + STI R2; +#endif + + /* Initialise General-Purpose I/O Modules on BF537 */ + /* Rev 0.0 Anomaly 05000212 - PORTx_FER, + * PORT_MUX Registers Do Not accept "writes" correctly: + */ + p0.h = hi(BFIN_PORT_MUX); + p0.l = lo(BFIN_PORT_MUX); +#ifdef ANOMALY_05000212 + R0.L = W[P0]; /* Read */ + SSYNC; +#endif + R0 = (PGDE_UART | PFTE_UART)(Z); +#ifdef ANOMALY_05000212 + W[P0] = R0.L; /* Write */ + SSYNC; +#endif + W[P0] = R0.L; /* Enable both UARTS */ + SSYNC; + + p0.h = hi(PORTF_FER); + p0.l = lo(PORTF_FER); +#ifdef ANOMALY_05000212 + R0.L = W[P0]; /* Read */ + SSYNC; +#endif + R0 = 0x000F(Z); +#ifdef ANOMALY_05000212 + W[P0] = R0.L; /* Write */ + SSYNC; +#endif + /* Enable peripheral function of PORTF for UART0 and UART1 */ + W[P0] = R0.L; + SSYNC; + +#if !defined(CONFIG_BF534) + p0.h = hi(EMAC_SYSTAT); + p0.l = lo(EMAC_SYSTAT); + R0.h = 0xFFFF; /* Clear EMAC Interrupt Status bits */ + R0.l = 0xFFFF; + [P0] = R0; + SSYNC; +#endif + +#ifdef CONFIG_BF537_PORT_H + p0.h = hi(PORTH_FER); + p0.l = lo(PORTH_FER); + R0.L = W[P0]; /* Read */ + SSYNC; + R0 = 0x0000; + W[P0] = R0.L; /* Write */ + SSYNC; + W[P0] = R0.L; /* Disable peripheral function of PORTH */ + SSYNC; +#endif + + /*Initialise UART*/ + p0.h = hi(UART_LCR); + p0.l = lo(UART_LCR); + r0 = 0x0(Z); + w[p0] = r0.L; /* To enable DLL writes */ + ssync; + + p0.h = hi(UART_DLL); + p0.l = lo(UART_DLL); + r0 = 0x00(Z); + w[p0] = r0.L; + ssync; + + p0.h = hi(UART_DLH); + p0.l = lo(UART_DLH); + r0 = 0x00(Z); + w[p0] = r0.L; + ssync; + + p0.h = hi(UART_GCTL); + p0.l = lo(UART_GCTL); + r0 = 0x0(Z); + w[p0] = r0.L; /* To enable UART clock */ + ssync; + + /* Initialize stack pointer */ + sp.l = lo(INITIAL_STACK); + sp.h = hi(INITIAL_STACK); + fp = sp; + usp = sp; + + /* Put The Code for PLL Programming and SDRAM Programming in L1 ISRAM */ + call _bf53x_relocate_l1_mem; +#if CONFIG_BFIN_KERNEL_CLOCK + call _start_dma_code; +#endif + /* Code for initializing Async memory banks */ + + p2.h = hi(EBIU_AMBCTL1); + p2.l = lo(EBIU_AMBCTL1); + r0.h = hi(AMBCTL1VAL); + r0.l = lo(AMBCTL1VAL); + [p2] = r0; + ssync; + + p2.h = hi(EBIU_AMBCTL0); + p2.l = lo(EBIU_AMBCTL0); + r0.h = hi(AMBCTL0VAL); + r0.l = lo(AMBCTL0VAL); + [p2] = r0; + ssync; + + p2.h = hi(EBIU_AMGCTL); + p2.l = lo(EBIU_AMGCTL); + r0 = AMGCTLVAL; + w[p2] = r0; + ssync; + + /* This section keeps the processor in supervisor mode + * during kernel boot. Switches to user mode at end of boot. + * See page 3-9 of Hardware Reference manual for documentation. + */ + + /* EVT15 = _real_start */ + + p0.l = lo(EVT15); + p0.h = hi(EVT15); + p1.l = _real_start; + p1.h = _real_start; + [p0] = p1; + csync; + + p0.l = lo(IMASK); + p0.h = hi(IMASK); + p1.l = IMASK_IVG15; + p1.h = 0x0; + [p0] = p1; + csync; + + raise 15; + p0.l = .LWAIT_HERE; + p0.h = .LWAIT_HERE; + reti = p0; +#if defined(ANOMALY_05000281) + nop; nop; nop; +#endif + rti; + +.LWAIT_HERE: + jump .LWAIT_HERE; + +ENTRY(_real_start) + [ -- sp ] = reti; + p0.l = lo(WDOG_CTL); + p0.h = hi(WDOG_CTL); + r0 = 0xAD6(z); + w[p0] = r0; /* watchdog off for now */ + ssync; + + /* Code update for BSS size == 0 + * Zero out the bss region. + */ + + p1.l = ___bss_start; + p1.h = ___bss_start; + p2.l = ___bss_stop; + p2.h = ___bss_stop; + r0 = 0; + p2 -= p1; + lsetup (.L_clear_bss, .L_clear_bss ) lc0 = p2; +.L_clear_bss: + B[p1++] = r0; + + /* In case there is a NULL pointer reference + * Zero out region before stext + */ + + p1.l = 0x0; + p1.h = 0x0; + r0.l = __stext; + r0.h = __stext; + r0 = r0 >> 1; + p2 = r0; + r0 = 0; + lsetup (.L_clear_zero, .L_clear_zero ) lc0 = p2; +.L_clear_zero: + W[p1++] = r0; + + /* pass the uboot arguments to the global value command line */ + R0 = R7; + call _cmdline_init; + + p1.l = __rambase; + p1.h = __rambase; + r0.l = __sdata; + r0.h = __sdata; + [p1] = r0; + + p1.l = __ramstart; + p1.h = __ramstart; + p3.l = ___bss_stop; + p3.h = ___bss_stop; + + r1 = p3; + [p1] = r1; + + + /* + * load the current thread pointer and stack + */ + r1.l = _init_thread_union; + r1.h = _init_thread_union; + + r2.l = 0x2000; + r2.h = 0x0000; + r1 = r1 + r2; + sp = r1; + usp = sp; + fp = sp; + call _start_kernel; +.L_exit: + jump.s .L_exit; + +.section .l1.text +#if CONFIG_BFIN_KERNEL_CLOCK +ENTRY(_start_dma_code) + + /* Enable PHY CLK buffer output */ + p0.h = hi(VR_CTL); + p0.l = lo(VR_CTL); + r0.l = w[p0]; + bitset(r0, 14); + w[p0] = r0.l; + ssync; + + p0.h = hi(SIC_IWR); + p0.l = lo(SIC_IWR); + r0.l = 0x1; + r0.h = 0x0; + [p0] = r0; + SSYNC; + + /* + * Set PLL_CTL + * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors + * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK + * - [7] = output delay (add 200ps of delay to mem signals) + * - [6] = input delay (add 200ps of input delay to mem signals) + * - [5] = PDWN : 1=All Clocks off + * - [3] = STOPCK : 1=Core Clock off + * - [1] = PLL_OFF : 1=Disable Power to PLL + * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL + * all other bits set to zero + */ + + p0.h = hi(PLL_LOCKCNT); + p0.l = lo(PLL_LOCKCNT); + r0 = 0x300(Z); + w[p0] = r0.l; + ssync; + + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITSET (R0, 24); + [P2] = R0; + SSYNC; + + r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ + r0 = r0 << 9; /* Shift it over, */ + r1 = CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/ + r0 = r1 | r0; + r1 = PLL_BYPASS; /* Bypass the PLL? */ + r1 = r1 << 8; /* Shift it over */ + r0 = r1 | r0; /* add them all together */ + + p0.h = hi(PLL_CTL); + p0.l = lo(PLL_CTL); /* Load the address */ + cli r2; /* Disable interrupts */ + ssync; + w[p0] = r0.l; /* Set the value */ + idle; /* Wait for the PLL to stablize */ + sti r2; /* Enable interrupts */ + +.Lcheck_again: + p0.h = hi(PLL_STAT); + p0.l = lo(PLL_STAT); + R0 = W[P0](Z); + CC = BITTST(R0,5); + if ! CC jump .Lcheck_again; + + /* Configure SCLK & CCLK Dividers */ + r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); + p0.h = hi(PLL_DIV); + p0.l = lo(PLL_DIV); + w[p0] = r0.l; + ssync; + + p0.l = lo(EBIU_SDRRC); + p0.h = hi(EBIU_SDRRC); + r0 = mem_SDRRC; + w[p0] = r0.l; + ssync; + + p0.l = (EBIU_SDBCTL & 0xFFFF); + p0.h = (EBIU_SDBCTL >> 16); /* SDRAM Memory Bank Control Register */ + r0 = mem_SDBCTL; + w[p0] = r0.l; + ssync; + + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITCLR (R0, 24); + p0.h = hi(EBIU_SDSTAT); + p0.l = lo(EBIU_SDSTAT); + r2.l = w[p0]; + cc = bittst(r2,3); + if !cc jump .Lskip; + NOP; + BITSET (R0, 23); +.Lskip: + [P2] = R0; + SSYNC; + + R0.L = lo(mem_SDGCTL); + R0.H = hi(mem_SDGCTL); + R1 = [p2]; + R1 = R1 | R0; + [P2] = R1; + SSYNC; + + p0.h = hi(SIC_IWR); + p0.l = lo(SIC_IWR); + r0.l = lo(IWR_ENABLE_ALL); + r0.h = hi(IWR_ENABLE_ALL); + [p0] = r0; + SSYNC; + + RTS; +#endif /* CONFIG_BFIN_KERNEL_CLOCK */ + +ENTRY(_bfin_reset) + /* No more interrupts to be handled*/ + CLI R6; + SSYNC; + +#if defined(CONFIG_MTD_M25P80) +/* + * The following code fix the SPI flash reboot issue, + * /CS signal of the chip which is using PF10 return to GPIO mode + */ + p0.h = hi(PORTF_FER); + p0.l = lo(PORTF_FER); + r0.l = 0x0000; + w[p0] = r0.l; + SSYNC; + +/* /CS return to high */ + p0.h = hi(PORTFIO); + p0.l = lo(PORTFIO); + r0.l = 0xFFFF; + w[p0] = r0.l; + SSYNC; + +/* Delay some time, This is necessary */ + r1.h = 0; + r1.l = 0x400; + p1 = r1; + lsetup (_delay_lab1,_delay_lab1_end ) lc1 = p1; +_delay_lab1: + r0.h = 0; + r0.l = 0x8000; + p0 = r0; + lsetup (_delay_lab0,_delay_lab0_end ) lc0 = p0; +_delay_lab0: + nop; +_delay_lab0_end: + nop; +_delay_lab1_end: + nop; +#endif + + /* Clear the bits 13-15 in SWRST if they werent cleared */ + p0.h = hi(SWRST); + p0.l = lo(SWRST); + csync; + r0.l = w[p0]; + + /* Clear the IMASK register */ + p0.h = hi(IMASK); + p0.l = lo(IMASK); + r0 = 0x0; + [p0] = r0; + + /* Clear the ILAT register */ + p0.h = hi(ILAT); + p0.l = lo(ILAT); + r0 = [p0]; + [p0] = r0; + SSYNC; + + /* Disable the WDOG TIMER */ + p0.h = hi(WDOG_CTL); + p0.l = lo(WDOG_CTL); + r0.l = 0xAD6; + w[p0] = r0.l; + SSYNC; + + /* Clear the sticky bit incase it is already set */ + p0.h = hi(WDOG_CTL); + p0.l = lo(WDOG_CTL); + r0.l = 0x8AD6; + w[p0] = r0.l; + SSYNC; + + /* Program the count value */ + R0.l = 0x100; + R0.h = 0x0; + P0.h = hi(WDOG_CNT); + P0.l = lo(WDOG_CNT); + [P0] = R0; + SSYNC; + + /* Program WDOG_STAT if necessary */ + P0.h = hi(WDOG_CTL); + P0.l = lo(WDOG_CTL); + R0 = W[P0](Z); + CC = BITTST(R0,1); + if !CC JUMP .LWRITESTAT; + CC = BITTST(R0,2); + if !CC JUMP .LWRITESTAT; + JUMP .LSKIP_WRITE; + +.LWRITESTAT: + /* When watch dog timer is enabled, + * a write to STAT will load the contents of CNT to STAT + */ + R0 = 0x0000(z); + P0.h = hi(WDOG_STAT); + P0.l = lo(WDOG_STAT) + [P0] = R0; + SSYNC; + +.LSKIP_WRITE: + /* Enable the reset event */ + P0.h = hi(WDOG_CTL); + P0.l = lo(WDOG_CTL); + R0 = W[P0](Z); + BITCLR(R0,1); + BITCLR(R0,2); + W[P0] = R0.L; + SSYNC; + NOP; + + /* Enable the wdog counter */ + R0 = W[P0](Z); + BITCLR(R0,4); + W[P0] = R0.L; + SSYNC; + + IDLE; + + RTS; + +.data + +/* + * Set up the usable of RAM stuff. Size of RAM is determined then + * an initial stack set up at the end. + */ + +.align 4 +__rambase: +.long 0 +__ramstart: +.long 0 +__ramend: +.long 0 diff --git a/arch/blackfin/mach-bf537/ints-priority.c b/arch/blackfin/mach-bf537/ints-priority.c new file mode 100644 index 0000000..fd6308e --- /dev/null +++ b/arch/blackfin/mach-bf537/ints-priority.c @@ -0,0 +1,74 @@ +/* + * File: arch/blackfin/mach-bf537/ints-priority.c + * Based on: arch/blackfin/mach-bf533/ints-priority.c + * Author: Michael Hennerich + * + * Created: + * Description: Set up the interupt priorities + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <asm/blackfin.h> +#include <asm/irq.h> + +void program_IAR(void) +{ + /* Program the IAR0 Register with the configured priority */ + bfin_write_SIC_IAR0(((CONFIG_IRQ_PLL_WAKEUP - 7) << IRQ_PLL_WAKEUP_POS) | + ((CONFIG_IRQ_DMA_ERROR - 7) << IRQ_DMA_ERROR_POS) | + ((CONFIG_IRQ_ERROR - 7) << IRQ_ERROR_POS) | + ((CONFIG_IRQ_RTC - 7) << IRQ_RTC_POS) | + ((CONFIG_IRQ_PPI - 7) << IRQ_PPI_POS) | + ((CONFIG_IRQ_SPORT0_RX - 7) << IRQ_SPORT0_RX_POS) | + ((CONFIG_IRQ_SPORT0_TX - 7) << IRQ_SPORT0_TX_POS) | + ((CONFIG_IRQ_SPORT1_RX - 7) << IRQ_SPORT1_RX_POS)); + + bfin_write_SIC_IAR1(((CONFIG_IRQ_SPORT1_TX - 7) << IRQ_SPORT1_TX_POS) | + ((CONFIG_IRQ_TWI - 7) << IRQ_TWI_POS) | + ((CONFIG_IRQ_SPI - 7) << IRQ_SPI_POS) | + ((CONFIG_IRQ_UART0_RX - 7) << IRQ_UART0_RX_POS) | + ((CONFIG_IRQ_UART0_TX - 7) << IRQ_UART0_TX_POS) | + ((CONFIG_IRQ_UART1_RX - 7) << IRQ_UART1_RX_POS) | + ((CONFIG_IRQ_UART1_TX - 7) << IRQ_UART1_TX_POS) | + ((CONFIG_IRQ_CAN_RX - 7) << IRQ_CAN_RX_POS)); + + bfin_write_SIC_IAR2(((CONFIG_IRQ_CAN_TX - 7) << IRQ_CAN_TX_POS) | + ((CONFIG_IRQ_MAC_RX - 7) << IRQ_MAC_RX_POS) | + ((CONFIG_IRQ_MAC_TX - 7) << IRQ_MAC_TX_POS) | + ((CONFIG_IRQ_TMR0 - 7) << IRQ_TMR0_POS) | + ((CONFIG_IRQ_TMR1 - 7) << IRQ_TMR1_POS) | + ((CONFIG_IRQ_TMR2 - 7) << IRQ_TMR2_POS) | + ((CONFIG_IRQ_TMR3 - 7) << IRQ_TMR3_POS) | + ((CONFIG_IRQ_TMR4 - 7) << IRQ_TMR4_POS)); + + bfin_write_SIC_IAR3(((CONFIG_IRQ_TMR5 - 7) << IRQ_TMR5_POS) | + ((CONFIG_IRQ_TMR6 - 7) << IRQ_TMR6_POS) | + ((CONFIG_IRQ_TMR7 - 7) << IRQ_TMR7_POS) | + ((CONFIG_IRQ_PROG_INTA - 7) << IRQ_PROG_INTA_POS) | + ((CONFIG_IRQ_PORTG_INTB - 7) << IRQ_PORTG_INTB_POS) | + ((CONFIG_IRQ_MEM_DMA0 - 7) << IRQ_MEM_DMA0_POS) | + ((CONFIG_IRQ_MEM_DMA1 - 7) << IRQ_MEM_DMA1_POS) | + ((CONFIG_IRQ_WATCH - 7) << IRQ_WATCH_POS)); + + SSYNC(); +} diff --git a/arch/blackfin/mach-bf561/Kconfig b/arch/blackfin/mach-bf561/Kconfig new file mode 100644 index 0000000..0a17c4c --- /dev/null +++ b/arch/blackfin/mach-bf561/Kconfig @@ -0,0 +1,222 @@ +if BF561 + +menu "BF561 Specific Configuration" + +comment "Core B Support" + +menu "Core B Support" + +config BF561_COREB + bool "Enable Core B support" + default y + +config BF561_COREB_RESET + bool "Enable Core B reset support" + default n + help + This requires code in the application that is loaded + into Core B. In order to reset, the application needs + to install an interrupt handler for Supplemental + Interrupt 0, that sets RETI to 0xff600000 and writes + bit 11 of SICB_SYSCR when bit 5 of SICA_SYSCR is 0. + This causes Core B to stall when Supplemental Interrupt + 0 is set, and will reset PC to 0xff600000 when + COREB_SRAM_INIT is cleared. + +endmenu + +comment "Interrupt Priority Assignment" + +menu "Priority" + +config IRQ_PLL_WAKEUP + int "PLL Wakeup Interrupt" + default 7 +config IRQ_DMA1_ERROR + int "DMA1 Error (generic)" + default 7 +config IRQ_DMA2_ERROR + int "DMA2 Error (generic)" + default 7 +config IRQ_IMDMA_ERROR + int "IMDMA Error (generic)" + default 7 +config IRQ_PPI0_ERROR + int "PPI0 Error Interrupt" + default 7 +config IRQ_PPI1_ERROR + int "PPI1 Error Interrupt" + default 7 +config IRQ_SPORT0_ERROR + int "SPORT0 Error Interrupt" + default 7 +config IRQ_SPORT1_ERROR + int "SPORT1 Error Interrupt" + default 7 +config IRQ_SPI_ERROR + int "SPI Error Interrupt" + default 7 +config IRQ_UART_ERROR + int "UART Error Interrupt" + default 7 +config IRQ_RESERVED_ERROR + int "Reserved Interrupt" + default 7 +config IRQ_DMA1_0 + int "DMA1 0 Interrupt(PPI1)" + default 8 +config IRQ_DMA1_1 + int "DMA1 1 Interrupt(PPI2)" + default 8 +config IRQ_DMA1_2 + int "DMA1 2 Interrupt" + default 8 +config IRQ_DMA1_3 + int "DMA1 3 Interrupt" + default 8 +config IRQ_DMA1_4 + int "DMA1 4 Interrupt" + default 8 +config IRQ_DMA1_5 + int "DMA1 5 Interrupt" + default 8 +config IRQ_DMA1_6 + int "DMA1 6 Interrupt" + default 8 +config IRQ_DMA1_7 + int "DMA1 7 Interrupt" + default 8 +config IRQ_DMA1_8 + int "DMA1 8 Interrupt" + default 8 +config IRQ_DMA1_9 + int "DMA1 9 Interrupt" + default 8 +config IRQ_DMA1_10 + int "DMA1 10 Interrupt" + default 8 +config IRQ_DMA1_11 + int "DMA1 11 Interrupt" + default 8 +config IRQ_DMA2_0 + int "DMA2 0 (SPORT0 RX)" + default 9 +config IRQ_DMA2_1 + int "DMA2 1 (SPORT0 TX)" + default 9 +config IRQ_DMA2_2 + int "DMA2 2 (SPORT1 RX)" + default 9 +config IRQ_DMA2_3 + int "DMA2 3 (SPORT2 TX)" + default 9 +config IRQ_DMA2_4 + int "DMA2 4 (SPI)" + default 9 +config IRQ_DMA2_5 + int "DMA2 5 (UART RX)" + default 9 +config IRQ_DMA2_6 + int "DMA2 6 (UART TX)" + default 9 +config IRQ_DMA2_7 + int "DMA2 7 Interrupt" + default 9 +config IRQ_DMA2_8 + int "DMA2 8 Interrupt" + default 9 +config IRQ_DMA2_9 + int "DMA2 9 Interrupt" + default 9 +config IRQ_DMA2_10 + int "DMA2 10 Interrupt" + default 9 +config IRQ_DMA2_11 + int "DMA2 11 Interrupt" + default 9 +config IRQ_TIMER0 + int "TIMER 0 Interrupt" + default 10 +config IRQ_TIMER1 + int "TIMER 1 Interrupt" + default 10 +config IRQ_TIMER2 + int "TIMER 2 Interrupt" + default 10 +config IRQ_TIMER3 + int "TIMER 3 Interrupt" + default 10 +config IRQ_TIMER4 + int "TIMER 4 Interrupt" + default 10 +config IRQ_TIMER5 + int "TIMER 5 Interrupt" + default 10 +config IRQ_TIMER6 + int "TIMER 6 Interrupt" + default 10 +config IRQ_TIMER7 + int "TIMER 7 Interrupt" + default 10 +config IRQ_TIMER8 + int "TIMER 8 Interrupt" + default 10 +config IRQ_TIMER9 + int "TIMER 9 Interrupt" + default 10 +config IRQ_TIMER10 + int "TIMER 10 Interrupt" + default 10 +config IRQ_TIMER11 + int "TIMER 11 Interrupt" + default 10 +config IRQ_PROG0_INTA + int "Programmable Flags0 A (8)" + default 11 +config IRQ_PROG0_INTB + int "Programmable Flags0 B (8)" + default 11 +config IRQ_PROG1_INTA + int "Programmable Flags1 A (8)" + default 11 +config IRQ_PROG1_INTB + int "Programmable Flags1 B (8)" + default 11 +config IRQ_PROG2_INTA + int "Programmable Flags2 A (8)" + default 11 +config IRQ_PROG2_INTB + int "Programmable Flags2 B (8)" + default 11 +config IRQ_DMA1_WRRD0 + int "MDMA1 0 write/read INT" + default 8 +config IRQ_DMA1_WRRD1 + int "MDMA1 1 write/read INT" + default 8 +config IRQ_DMA2_WRRD0 + int "MDMA2 0 write/read INT" + default 9 +config IRQ_DMA2_WRRD1 + int "MDMA2 1 write/read INT" + default 9 +config IRQ_IMDMA_WRRD0 + int "IMDMA 0 write/read INT" + default 12 +config IRQ_IMDMA_WRRD1 + int "IMDMA 1 write/read INT" + default 12 +config IRQ_WDTIMER + int "Watch Dog Timer" + default 13 + + help + Enter the priority numbers between 7-13 ONLY. Others are Reserved. + This applies to all the above. It is not recommended to assign the + highest priority number 7 to UART or any other device. + +endmenu + +endmenu + +endif diff --git a/arch/blackfin/mach-bf561/Makefile b/arch/blackfin/mach-bf561/Makefile new file mode 100644 index 0000000..57f475a --- /dev/null +++ b/arch/blackfin/mach-bf561/Makefile @@ -0,0 +1,9 @@ +# +# arch/blackfin/mach-bf561/Makefile +# + +extra-y := head.o + +obj-y := ints-priority.o + +obj-$(CONFIG_BF561_COREB) += coreb.o diff --git a/arch/blackfin/mach-bf561/boards/Makefile b/arch/blackfin/mach-bf561/boards/Makefile new file mode 100644 index 0000000..886edc7 --- /dev/null +++ b/arch/blackfin/mach-bf561/boards/Makefile @@ -0,0 +1,7 @@ +# +# arch/blackfin/mach-bf561/boards/Makefile +# + +obj-$(CONFIG_GENERIC_BOARD) += generic_board.o +obj-$(CONFIG_BFIN561_EZKIT) += ezkit.o +obj-$(CONFIG_BFIN561_BLUETECHNIX_CM) += cm_bf561.o diff --git a/arch/blackfin/mach-bf561/boards/cm_bf561.c b/arch/blackfin/mach-bf561/boards/cm_bf561.c new file mode 100644 index 0000000..6824e95 --- /dev/null +++ b/arch/blackfin/mach-bf561/boards/cm_bf561.c @@ -0,0 +1,289 @@ +/* + * File: arch/blackfin/mach-bf533/boards/cm_bf561.c + * Based on: arch/blackfin/mach-bf533/boards/ezkit.c + * Author: Aidan Williams <aidan@nicta.com.au> Copright 2005 + * + * Created: 2006 + * Description: Board description file + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#include <linux/usb_isp1362.h> +#include <asm/irq.h> +#include <asm/bfin5xx_spi.h> + +/* + * Name the Board for the /proc/cpuinfo + */ +char *bfin_board_name = "Bluetechnix CM BF561"; + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) +/* all SPI perpherals info goes here */ + +#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE) +static struct mtd_partition bfin_spi_flash_partitions[] = { + { + .name = "bootloader", + .size = 0x00020000, + .offset = 0, + .mask_flags = MTD_CAP_ROM + },{ + .name = "kernel", + .size = 0xe0000, + .offset = 0x20000 + },{ + .name = "file system", + .size = 0x700000, + .offset = 0x00100000, + } +}; + +static struct flash_platform_data bfin_spi_flash_data = { + .name = "m25p80", + .parts = bfin_spi_flash_partitions, + .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions), + .type = "m25p64", +}; + +/* SPI flash chip (m25p64) */ +static struct bfin5xx_spi_chip spi_flash_chip_info = { + .enable_dma = 0, /* use dma transfer with this chip*/ + .bits_per_word = 8, +}; +#endif + +#if defined(CONFIG_SPI_ADC_BF533) || defined(CONFIG_SPI_ADC_BF533_MODULE) +/* SPI ADC chip */ +static struct bfin5xx_spi_chip spi_adc_chip_info = { + .enable_dma = 1, /* use dma transfer with this chip*/ + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) +static struct bfin5xx_spi_chip ad1836_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_AD9960) || defined(CONFIG_AD9960_MODULE) +static struct bfin5xx_spi_chip ad9960_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + +#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE) +static struct bfin5xx_spi_chip spi_mmc_chip_info = { + .enable_dma = 1, + .bits_per_word = 8, +}; +#endif + +static struct spi_board_info bfin_spi_board_info[] __initdata = { +#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE) + { + /* the modalias must be the same as spi device driver name */ + .modalias = "m25p80", /* Name of spi_driver for this device */ + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/ + .platform_data = &bfin_spi_flash_data, + .controller_data = &spi_flash_chip_info, + .mode = SPI_MODE_3, + }, +#endif + +#if defined(CONFIG_SPI_ADC_BF533) || defined(CONFIG_SPI_ADC_BF533_MODULE) + { + .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */ + .max_speed_hz = 6250000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 1, /* Framework chip select. */ + .platform_data = NULL, /* No spi_driver specific config */ + .controller_data = &spi_adc_chip_info, + }, +#endif + +#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) + { + .modalias = "ad1836-spi", + .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT, + .controller_data = &ad1836_spi_chip_info, + }, +#endif +#if defined(CONFIG_AD9960) || defined(CONFIG_AD9960_MODULE) + { + .modalias = "ad9960-spi", + .max_speed_hz = 10000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 1, + .controller_data = &ad9960_spi_chip_info, + }, +#endif +#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE) + { + .modalias = "spi_mmc", + .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = CONFIG_SPI_MMC_CS_CHAN, + .platform_data = NULL, + .controller_data = &spi_mmc_chip_info, + .mode = SPI_MODE_3, + }, +#endif +}; + +/* SPI controller data */ +static struct bfin5xx_spi_master spi_bfin_master_info = { + .num_chipselect = 8, + .enable_dma = 1, /* master has the ability to do dma transfer */ +}; + +static struct platform_device spi_bfin_master_device = { + .name = "bfin-spi-master", + .id = 1, /* Bus number */ + .dev = { + .platform_data = &spi_bfin_master_info, /* Passed to driver */ + }, +}; +#endif /* spi master and devices */ + + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + +static struct resource smc91x_resources[] = { + { + .name = "smc91x-regs", + .start = 0x28000300, + .end = 0x28000300 + 16, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF0, + .end = IRQ_PF0, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; +#endif + +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) +static struct resource isp1362_hcd_resources[] = { + { + .start = 0x24008000, + .end = 0x24008000, + .flags = IORESOURCE_MEM, + },{ + .start = 0x24008004, + .end = 0x24008004, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PF47, + .end = IRQ_PF47, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct isp1362_platform_data isp1362_priv = { + .sel15Kres = 1, + .clknotstop = 0, + .oc_enable = 0, + .int_act_high = 0, + .int_edge_triggered = 0, + .remote_wakeup_connected = 0, + .no_power_switching = 1, + .power_switching_mode = 0, +}; + +static struct platform_device isp1362_hcd_device = { + .name = "isp1362-hcd", + .id = 0, + .dev = { + .platform_data = &isp1362_priv, + }, + .num_resources = ARRAY_SIZE(isp1362_hcd_resources), + .resource = isp1362_hcd_resources, +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +static struct resource bfin_uart_resources[] = { + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device bfin_uart_device = { + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, +}; +#endif + +static struct platform_device *cm_bf561_devices[] __initdata = { + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) + &bfin_uart_device, +#endif + +#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) + &isp1362_hcd_device, +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + &smc91x_device, +#endif + +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + &spi_bfin_master_device, +#endif + +}; + +static int __init cm_bf561_init(void) +{ + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + platform_add_devices(cm_bf561_devices, ARRAY_SIZE(cm_bf561_devices)); +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info)); +#endif + return 0; +} + +arch_initcall(cm_bf561_init); diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c new file mode 100644 index 0000000..14eb4f9 --- /dev/null +++ b/arch/blackfin/mach-bf561/boards/ezkit.c @@ -0,0 +1,147 @@ +/* + * File: arch/blackfin/mach-bf561/ezkit.c + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/spi/spi.h> +#include <asm/irq.h> +#include <asm/bfin5xx_spi.h> + +/* + * Name the Board for the /proc/cpuinfo + */ +char *bfin_board_name = "ADDS-BF561-EZKIT"; + +/* + * USB-LAN EzExtender board + * Driver needs to know address, irq and flag pin. + */ +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) +static struct resource smc91x_resources[] = { + { + .name = "smc91x-regs", + .start = 0x2C010300, + .end = 0x2C010300 + 16, + .flags = IORESOURCE_MEM, + },{ + + .start = IRQ_PF9, + .end = IRQ_PF9, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +static struct resource bfin_uart_resources[] = { + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device bfin_uart_device = { + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, +}; +#endif + +#ifdef CONFIG_SPI_BFIN +#if defined(CONFIG_SND_BLACKFIN_AD1836) \ + || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) +static struct bfin5xx_spi_chip ad1836_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif +#endif + +/* SPI controller data */ +static struct bfin5xx_spi_master spi_bfin_master_info = { + .num_chipselect = 8, + .enable_dma = 1, /* master has the ability to do dma transfer */ +}; + +static struct platform_device spi_bfin_master_device = { + .name = "bfin-spi-master", + .id = 1, /* Bus number */ + .dev = { + .platform_data = &spi_bfin_master_info, /* Passed to driver */ + }, +}; + +static struct spi_board_info bfin_spi_board_info[] __initdata = { +#if defined(CONFIG_SND_BLACKFIN_AD1836) \ + || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE) + { + .modalias = "ad1836-spi", + .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT, + .controller_data = &ad1836_spi_chip_info, + }, +#endif +}; + +static struct platform_device *ezkit_devices[] __initdata = { +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + &smc91x_device, +#endif +#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE) + &spi_bfin_master_device, +#endif +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) + &bfin_uart_device, +#endif +}; + +static int __init ezkit_init(void) +{ + int ret; + + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + ret = platform_add_devices(ezkit_devices, + ARRAY_SIZE(ezkit_devices)); + if (ret < 0) + return ret; + return spi_register_board_info(bfin_spi_board_info, + ARRAY_SIZE(bfin_spi_board_info)); +} + +arch_initcall(ezkit_init); diff --git a/arch/blackfin/mach-bf561/boards/generic_board.c b/arch/blackfin/mach-bf561/boards/generic_board.c new file mode 100644 index 0000000..585ecdd --- /dev/null +++ b/arch/blackfin/mach-bf561/boards/generic_board.c @@ -0,0 +1,82 @@ +/* + * File: arch/blackfin/mach-bf561/generic_board.c + * Based on: arch/blackfin/mach-bf533/ezkit.c + * Author: Aidan Williams <aidan@nicta.com.au> + * + * Created: + * Description: + * + * Modified: + * Copyright 2005 National ICT Australia (NICTA) + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <asm/irq.h> + +char *bfin_board_name = "UNKNOWN BOARD"; + +/* + * Driver needs to know address, irq and flag pin. + */ +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) +static struct resource smc91x_resources[] = { + { + .start = 0x2C010300, + .end = 0x2C010300 + 16, + .flags = IORESOURCE_MEM, + },{ + .start = IRQ_PROG_INTB, + .end = IRQ_PROG_INTB, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + },{ + /* + * denotes the flag pin and is used directly if + * CONFIG_IRQCHIP_DEMUX_GPIO is defined. + */ + .start = IRQ_PF9, + .end = IRQ_PF9, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, + }, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; +#endif + +static struct platform_device *generic_board_devices[] __initdata = { +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + &smc91x_device, +#endif +}; + +static int __init generic_board_init(void) +{ + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + return platform_add_devices(generic_board_devices, + ARRAY_SIZE(generic_board_devices)); +} + +arch_initcall(generic_board_init); diff --git a/arch/blackfin/mach-bf561/coreb.c b/arch/blackfin/mach-bf561/coreb.c new file mode 100644 index 0000000..b28582f --- /dev/null +++ b/arch/blackfin/mach-bf561/coreb.c @@ -0,0 +1,402 @@ +/* + * File: arch/blackfin/mach-bf561/coreb.c + * Based on: + * Author: + * + * Created: + * Description: Handle CoreB on a BF561 + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/mm.h> +#include <linux/miscdevice.h> +#include <linux/device.h> +#include <linux/ioport.h> +#include <linux/module.h> +#include <asm/dma.h> +#include <asm/uaccess.h> + +#define MODULE_VER "v0.1" + +static spinlock_t coreb_lock; +static wait_queue_head_t coreb_dma_wait; + +#define COREB_IS_OPEN 0x00000001 +#define COREB_IS_RUNNING 0x00000010 + +#define CMD_COREB_INDEX 1 +#define CMD_COREB_START 2 +#define CMD_COREB_STOP 3 +#define CMD_COREB_RESET 4 + +#define COREB_MINOR 229 + +static unsigned long coreb_status = 0; +static unsigned long coreb_base = 0xff600000; +static unsigned long coreb_size = 0x4000; +int coreb_dma_done; + +static loff_t coreb_lseek(struct file *file, loff_t offset, int origin); +static ssize_t coreb_read(struct file *file, char *buf, size_t count, + loff_t * ppos); +static ssize_t coreb_write(struct file *file, const char *buf, size_t count, + loff_t * ppos); +static int coreb_ioctl(struct inode *inode, struct file *file, unsigned int cmd, + unsigned long arg); +static int coreb_open(struct inode *inode, struct file *file); +static int coreb_release(struct inode *inode, struct file *file); + +static irqreturn_t coreb_dma_interrupt(int irq, void *dev_id) +{ + clear_dma_irqstat(CH_MEM_STREAM2_DEST); + coreb_dma_done = 1; + wake_up_interruptible(&coreb_dma_wait); + return IRQ_HANDLED; +} + +static ssize_t coreb_write(struct file *file, const char *buf, size_t count, + loff_t * ppos) +{ + unsigned long p = *ppos; + ssize_t wrote = 0; + + if (p + count > coreb_size) + return -EFAULT; + + while (count > 0) { + int len = count; + + if (len > PAGE_SIZE) + len = PAGE_SIZE; + + coreb_dma_done = 0; + + /* Source Channel */ + set_dma_start_addr(CH_MEM_STREAM2_SRC, (unsigned long)buf); + set_dma_x_count(CH_MEM_STREAM2_SRC, len); + set_dma_x_modify(CH_MEM_STREAM2_SRC, sizeof(char)); + set_dma_config(CH_MEM_STREAM2_SRC, RESTART); + /* Destination Channel */ + set_dma_start_addr(CH_MEM_STREAM2_DEST, coreb_base + p); + set_dma_x_count(CH_MEM_STREAM2_DEST, len); + set_dma_x_modify(CH_MEM_STREAM2_DEST, sizeof(char)); + set_dma_config(CH_MEM_STREAM2_DEST, WNR | RESTART | DI_EN); + + enable_dma(CH_MEM_STREAM2_SRC); + enable_dma(CH_MEM_STREAM2_DEST); + + wait_event_interruptible(coreb_dma_wait, coreb_dma_done); + + disable_dma(CH_MEM_STREAM2_SRC); + disable_dma(CH_MEM_STREAM2_DEST); + + count -= len; + wrote += len; + buf += len; + p += len; + } + *ppos = p; + return wrote; +} + +static ssize_t coreb_read(struct file *file, char *buf, size_t count, + loff_t * ppos) +{ + unsigned long p = *ppos; + ssize_t read = 0; + + if ((p + count) > coreb_size) + return -EFAULT; + + while (count > 0) { + int len = count; + + if (len > PAGE_SIZE) + len = PAGE_SIZE; + + coreb_dma_done = 0; + + /* Source Channel */ + set_dma_start_addr(CH_MEM_STREAM2_SRC, coreb_base + p); + set_dma_x_count(CH_MEM_STREAM2_SRC, len); + set_dma_x_modify(CH_MEM_STREAM2_SRC, sizeof(char)); + set_dma_config(CH_MEM_STREAM2_SRC, RESTART); + /* Destination Channel */ + set_dma_start_addr(CH_MEM_STREAM2_DEST, (unsigned long)buf); + set_dma_x_count(CH_MEM_STREAM2_DEST, len); + set_dma_x_modify(CH_MEM_STREAM2_DEST, sizeof(char)); + set_dma_config(CH_MEM_STREAM2_DEST, WNR | RESTART | DI_EN); + + enable_dma(CH_MEM_STREAM2_SRC); + enable_dma(CH_MEM_STREAM2_DEST); + + wait_event_interruptible(coreb_dma_wait, coreb_dma_done); + + disable_dma(CH_MEM_STREAM2_SRC); + disable_dma(CH_MEM_STREAM2_DEST); + + count -= len; + read += len; + buf += len; + p += len; + } + + return read; +} + +static loff_t coreb_lseek(struct file *file, loff_t offset, int origin) +{ + loff_t ret; + + mutex_lock(&file->f_dentry->d_inode->i_mutex); + + switch (origin) { + case 0 /* SEEK_SET */ : + if (offset < coreb_size) { + file->f_pos = offset; + ret = file->f_pos; + } else + ret = -EINVAL; + break; + case 1 /* SEEK_CUR */ : + if ((offset + file->f_pos) < coreb_size) { + file->f_pos += offset; + ret = file->f_pos; + } else + ret = -EINVAL; + default: + ret = -EINVAL; + } + mutex_unlock(&file->f_dentry->d_inode->i_mutex); + return ret; +} + +static int coreb_open(struct inode *inode, struct file *file) +{ + spin_lock_irq(&coreb_lock); + + if (coreb_status & COREB_IS_OPEN) + goto out_busy; + + coreb_status |= COREB_IS_OPEN; + + spin_unlock_irq(&coreb_lock); + return 0; + + out_busy: + spin_unlock_irq(&coreb_lock); + return -EBUSY; +} + +static int coreb_release(struct inode *inode, struct file *file) +{ + spin_lock_irq(&coreb_lock); + coreb_status &= ~COREB_IS_OPEN; + spin_unlock_irq(&coreb_lock); + return 0; +} + +static int coreb_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) +{ + int retval = 0; + int coreb_index = 0; + + switch (cmd) { + case CMD_COREB_INDEX: + if (copy_from_user(&coreb_index, (int *)arg, sizeof(int))) { + retval = -EFAULT; + break; + } + + spin_lock_irq(&coreb_lock); + switch (coreb_index) { + case 0: + coreb_base = 0xff600000; + coreb_size = 0x4000; + break; + case 1: + coreb_base = 0xff610000; + coreb_size = 0x4000; + break; + case 2: + coreb_base = 0xff500000; + coreb_size = 0x8000; + break; + case 3: + coreb_base = 0xff400000; + coreb_size = 0x8000; + break; + default: + retval = -EINVAL; + break; + } + spin_unlock_irq(&coreb_lock); + + mutex_lock(&file->f_dentry->d_inode->i_mutex); + file->f_pos = 0; + mutex_unlock(&file->f_dentry->d_inode->i_mutex); + break; + case CMD_COREB_START: + spin_lock_irq(&coreb_lock); + if (coreb_status & COREB_IS_RUNNING) { + retval = -EBUSY; + break; + } + printk(KERN_INFO "Starting Core B\n"); + coreb_status |= COREB_IS_RUNNING; + bfin_write_SICA_SYSCR(bfin_read_SICA_SYSCR() & ~0x0020); + SSYNC(); + spin_lock_irq(&coreb_lock); + break; +#if defined(CONFIG_BF561_COREB_RESET) + case CMD_COREB_STOP: + spin_lock_irq(&coreb_lock); + printk(KERN_INFO "Stopping Core B\n"); + bfin_write_SICA_SYSCR(bfin_read_SICA_SYSCR() | 0x0020); + bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | 0x0080); + coreb_status &= ~COREB_IS_RUNNING; + spin_lock_irq(&coreb_lock); + break; + case CMD_COREB_RESET: + printk(KERN_INFO "Resetting Core B\n"); + bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | 0x0080); + break; +#endif + } + + return retval; +} + +static struct file_operations coreb_fops = { + .owner = THIS_MODULE, + .llseek = coreb_lseek, + .read = coreb_read, + .write = coreb_write, + .ioctl = coreb_ioctl, + .open = coreb_open, + .release = coreb_release +}; + +static struct miscdevice coreb_dev = { + COREB_MINOR, + "coreb", + &coreb_fops +}; + +static ssize_t coreb_show_status(struct device *dev, struct device_attribute *attr, char *buf) +{ + return sprintf(buf, + "Base Address:\t0x%08lx\n" + "Core B is %s\n" + "SICA_SYSCR:\t%04x\n" + "SICB_SYSCR:\t%04x\n" + "\n" + "IRQ Status:\tCore A\t\tCore B\n" + "ISR0:\t\t%08x\t\t%08x\n" + "ISR1:\t\t%08x\t\t%08x\n" + "IMASK0:\t\t%08x\t\t%08x\n" + "IMASK1:\t\t%08x\t\t%08x\n", + coreb_base, + coreb_status & COREB_IS_RUNNING ? "running" : "stalled", + bfin_read_SICA_SYSCR(), bfin_read_SICB_SYSCR(), + bfin_read_SICA_ISR0(), bfin_read_SICB_ISR0(), + bfin_read_SICA_ISR1(), bfin_read_SICB_ISR0(), + bfin_read_SICA_IMASK0(), bfin_read_SICB_IMASK0(), + bfin_read_SICA_IMASK1(), bfin_read_SICB_IMASK1()); +} + +static DEVICE_ATTR(coreb_status, S_IRUGO, coreb_show_status, NULL); + +int __init bf561_coreb_init(void) +{ + init_waitqueue_head(&coreb_dma_wait); + + spin_lock_init(&coreb_lock); + /* Request the core memory regions for Core B */ + if (request_mem_region(0xff600000, 0x4000, + "Core B - Instruction SRAM") == NULL) + goto exit; + + if (request_mem_region(0xFF610000, 0x4000, + "Core B - Instruction SRAM") == NULL) + goto release_instruction_a_sram; + + if (request_mem_region(0xFF500000, 0x8000, + "Core B - Data Bank B SRAM") == NULL) + goto release_instruction_b_sram; + + if (request_mem_region(0xff400000, 0x8000, + "Core B - Data Bank A SRAM") == NULL) + goto release_data_b_sram; + + if (request_dma(CH_MEM_STREAM2_DEST, "Core B - DMA Destination") < 0) + goto release_data_a_sram; + + if (request_dma(CH_MEM_STREAM2_SRC, "Core B - DMA Source") < 0) + goto release_dma_dest; + + set_dma_callback(CH_MEM_STREAM2_DEST, coreb_dma_interrupt, NULL); + + misc_register(&coreb_dev); + + if (device_create_file(coreb_dev.this_device, &dev_attr_coreb_status)) + goto release_dma_src; + + printk(KERN_INFO "BF561 Core B driver %s initialized.\n", MODULE_VER); + return 0; + + release_dma_src: + free_dma(CH_MEM_STREAM2_SRC); + release_dma_dest: + free_dma(CH_MEM_STREAM2_DEST); + release_data_a_sram: + release_mem_region(0xff400000, 0x8000); + release_data_b_sram: + release_mem_region(0xff500000, 0x8000); + release_instruction_b_sram: + release_mem_region(0xff610000, 0x4000); + release_instruction_a_sram: + release_mem_region(0xff600000, 0x4000); + exit: + return -ENOMEM; +} + +void __exit bf561_coreb_exit(void) +{ + device_remove_file(coreb_dev.this_device, &dev_attr_coreb_status); + misc_deregister(&coreb_dev); + + release_mem_region(0xff610000, 0x4000); + release_mem_region(0xff600000, 0x4000); + release_mem_region(0xff500000, 0x8000); + release_mem_region(0xff400000, 0x8000); + + free_dma(CH_MEM_STREAM2_DEST); + free_dma(CH_MEM_STREAM2_SRC); +} + +module_init(bf561_coreb_init); +module_exit(bf561_coreb_exit); + +MODULE_AUTHOR("Bas Vermeulen <bvermeul@blackstar.xs4all.nl>"); +MODULE_DESCRIPTION("BF561 Core B Support"); diff --git a/arch/blackfin/mach-bf561/head.S b/arch/blackfin/mach-bf561/head.S new file mode 100644 index 0000000..7bca478 --- /dev/null +++ b/arch/blackfin/mach-bf561/head.S @@ -0,0 +1,512 @@ +/* + * File: arch/blackfin/mach-bf561/head.S + * Based on: arch/blackfin/mach-bf533/head.S + * Author: + * + * Created: + * Description: BF561 startup file + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> +#include <asm/blackfin.h> +#if CONFIG_BFIN_KERNEL_CLOCK +#include <asm/mach/mem_init.h> +#endif + +.global __rambase +.global __ramstart +.global __ramend +.extern ___bss_stop +.extern ___bss_start +.extern _bf53x_relocate_l1_mem + +#define INITIAL_STACK 0xFFB01000 + +.text + +ENTRY(__start) +ENTRY(__stext) + /* R0: argument of command line string, passed from uboot, save it */ + R7 = R0; + /* Set the SYSCFG register */ + R0 = 0x36; + SYSCFG = R0; /*Enable Cycle Counter and Nesting Of Interrupts(3rd Bit)*/ + R0 = 0; + + /*Clear Out All the data and pointer Registers*/ + R1 = R0; + R2 = R0; + R3 = R0; + R4 = R0; + R5 = R0; + R6 = R0; + + P0 = R0; + P1 = R0; + P2 = R0; + P3 = R0; + P4 = R0; + P5 = R0; + + LC0 = r0; + LC1 = r0; + L0 = r0; + L1 = r0; + L2 = r0; + L3 = r0; + + /* Clear Out All the DAG Registers*/ + B0 = r0; + B1 = r0; + B2 = r0; + B3 = r0; + + I0 = r0; + I1 = r0; + I2 = r0; + I3 = r0; + + M0 = r0; + M1 = r0; + M2 = r0; + M3 = r0; + + /* Turn off the icache */ + p0.l = (IMEM_CONTROL & 0xFFFF); + p0.h = (IMEM_CONTROL >> 16); + R1 = [p0]; + R0 = ~ENICPLB; + R0 = R0 & R1; + + /* Anomaly 05000125 */ +#ifdef ANOMALY_05000125 + CLI R2; + SSYNC; +#endif + [p0] = R0; + SSYNC; +#ifdef ANOMALY_05000125 + STI R2; +#endif + + /* Turn off the dcache */ + p0.l = (DMEM_CONTROL & 0xFFFF); + p0.h = (DMEM_CONTROL >> 16); + R1 = [p0]; + R0 = ~ENDCPLB; + R0 = R0 & R1; + + /* Anomaly 05000125 */ +#ifdef ANOMALY_05000125 + CLI R2; + SSYNC; +#endif + [p0] = R0; + SSYNC; +#ifdef ANOMALY_05000125 + STI R2; +#endif + + /* Initialise UART*/ + p0.h = hi(UART_LCR); + p0.l = lo(UART_LCR); + r0 = 0x0(Z); + w[p0] = r0.L; /* To enable DLL writes */ + ssync; + + p0.h = hi(UART_DLL); + p0.l = lo(UART_DLL); + r0 = 0x0(Z); + w[p0] = r0.L; + ssync; + + p0.h = hi(UART_DLH); + p0.l = lo(UART_DLH); + r0 = 0x00(Z); + w[p0] = r0.L; + ssync; + + p0.h = hi(UART_GCTL); + p0.l = lo(UART_GCTL); + r0 = 0x0(Z); + w[p0] = r0.L; /* To enable UART clock */ + ssync; + + /* Initialize stack pointer */ + sp.l = lo(INITIAL_STACK); + sp.h = hi(INITIAL_STACK); + fp = sp; + usp = sp; + + /* Put The Code for PLL Programming and SDRAM Programming in L1 ISRAM */ + call _bf53x_relocate_l1_mem; +#if CONFIG_BFIN_KERNEL_CLOCK + call _start_dma_code; +#endif + + /* Code for initializing Async memory banks */ + + p2.h = hi(EBIU_AMBCTL1); + p2.l = lo(EBIU_AMBCTL1); + r0.h = hi(AMBCTL1VAL); + r0.l = lo(AMBCTL1VAL); + [p2] = r0; + ssync; + + p2.h = hi(EBIU_AMBCTL0); + p2.l = lo(EBIU_AMBCTL0); + r0.h = hi(AMBCTL0VAL); + r0.l = lo(AMBCTL0VAL); + [p2] = r0; + ssync; + + p2.h = hi(EBIU_AMGCTL); + p2.l = lo(EBIU_AMGCTL); + r0 = AMGCTLVAL; + w[p2] = r0; + ssync; + + /* This section keeps the processor in supervisor mode + * during kernel boot. Switches to user mode at end of boot. + * See page 3-9 of Hardware Reference manual for documentation. + */ + + /* EVT15 = _real_start */ + + p0.l = lo(EVT15); + p0.h = hi(EVT15); + p1.l = _real_start; + p1.h = _real_start; + [p0] = p1; + csync; + + p0.l = lo(IMASK); + p0.h = hi(IMASK); + p1.l = IMASK_IVG15; + p1.h = 0x0; + [p0] = p1; + csync; + + raise 15; + p0.l = .LWAIT_HERE; + p0.h = .LWAIT_HERE; + reti = p0; +#if defined(ANOMALY_05000281) + nop; nop; nop; +#endif + rti; + +.LWAIT_HERE: + jump .LWAIT_HERE; + +ENTRY(_real_start) + [ -- sp ] = reti; + p0.l = lo(WDOGA_CTL); + p0.h = hi(WDOGA_CTL); + r0 = 0xAD6(z); + w[p0] = r0; /* watchdog off for now */ + ssync; + + /* Code update for BSS size == 0 + * Zero out the bss region. + */ + + p1.l = ___bss_start; + p1.h = ___bss_start; + p2.l = ___bss_stop; + p2.h = ___bss_stop; + r0 = 0; + p2 -= p1; + lsetup (.L_clear_bss, .L_clear_bss ) lc0 = p2; +.L_clear_bss: + B[p1++] = r0; + + /* In case there is a NULL pointer reference + * Zero out region before stext + */ + + p1.l = 0x0; + p1.h = 0x0; + r0.l = __stext; + r0.h = __stext; + r0 = r0 >> 1; + p2 = r0; + r0 = 0; + lsetup (.L_clear_zero, .L_clear_zero ) lc0 = p2; +.L_clear_zero: + W[p1++] = r0; + +/* pass the uboot arguments to the global value command line */ + R0 = R7; + call _cmdline_init; + + p1.l = __rambase; + p1.h = __rambase; + r0.l = __sdata; + r0.h = __sdata; + [p1] = r0; + + p1.l = __ramstart; + p1.h = __ramstart; + p3.l = ___bss_stop; + p3.h = ___bss_stop; + + r1 = p3; + [p1] = r1; + + /* + * load the current thread pointer and stack + */ + r1.l = _init_thread_union; + r1.h = _init_thread_union; + + r2.l = 0x2000; + r2.h = 0x0000; + r1 = r1 + r2; + sp = r1; + usp = sp; + fp = sp; + call _start_kernel; +.L_exit: + jump.s .L_exit; + +.section .l1.text +#if CONFIG_BFIN_KERNEL_CLOCK +ENTRY(_start_dma_code) + p0.h = hi(SICA_IWR0); + p0.l = lo(SICA_IWR0); + r0.l = 0x1; + [p0] = r0; + SSYNC; + + /* + * Set PLL_CTL + * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors + * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK + * - [7] = output delay (add 200ps of delay to mem signals) + * - [6] = input delay (add 200ps of input delay to mem signals) + * - [5] = PDWN : 1=All Clocks off + * - [3] = STOPCK : 1=Core Clock off + * - [1] = PLL_OFF : 1=Disable Power to PLL + * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL + * all other bits set to zero + */ + + p0.h = hi(PLL_LOCKCNT); + p0.l = lo(PLL_LOCKCNT); + r0 = 0x300(Z); + w[p0] = r0.l; + ssync; + + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITSET (R0, 24); + [P2] = R0; + SSYNC; + + r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ + r0 = r0 << 9; /* Shift it over, */ + r1 = CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/ + r0 = r1 | r0; + r1 = PLL_BYPASS; /* Bypass the PLL? */ + r1 = r1 << 8; /* Shift it over */ + r0 = r1 | r0; /* add them all together */ + + p0.h = hi(PLL_CTL); + p0.l = lo(PLL_CTL); /* Load the address */ + cli r2; /* Disable interrupts */ + ssync; + w[p0] = r0.l; /* Set the value */ + idle; /* Wait for the PLL to stablize */ + sti r2; /* Enable interrupts */ + +.Lcheck_again: + p0.h = hi(PLL_STAT); + p0.l = lo(PLL_STAT); + R0 = W[P0](Z); + CC = BITTST(R0,5); + if ! CC jump .Lcheck_again; + + /* Configure SCLK & CCLK Dividers */ + r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); + p0.h = hi(PLL_DIV); + p0.l = lo(PLL_DIV); + w[p0] = r0.l; + ssync; + + p0.l = lo(EBIU_SDRRC); + p0.h = hi(EBIU_SDRRC); + r0 = mem_SDRRC; + w[p0] = r0.l; + ssync; + + p0.l = (EBIU_SDBCTL & 0xFFFF); + p0.h = (EBIU_SDBCTL >> 16); /* SDRAM Memory Bank Control Register */ + r0 = mem_SDBCTL; + w[p0] = r0.l; + ssync; + + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITCLR (R0, 24); + p0.h = hi(EBIU_SDSTAT); + p0.l = lo(EBIU_SDSTAT); + r2.l = w[p0]; + cc = bittst(r2,3); + if !cc jump .Lskip; + NOP; + BITSET (R0, 23); +.Lskip: + [P2] = R0; + SSYNC; + + R0.L = lo(mem_SDGCTL); + R0.H = hi(mem_SDGCTL); + R1 = [p2]; + R1 = R1 | R0; + [P2] = R1; + SSYNC; + + RTS; +#endif /* CONFIG_BFIN_KERNEL_CLOCK */ + +ENTRY(_bfin_reset) + /* No more interrupts to be handled*/ + CLI R6; + SSYNC; + +#if defined(CONFIG_BFIN_SHARED_FLASH_ENET) + p0.h = hi(FIO_INEN); + p0.l = lo(FIO_INEN); + r0.l = ~(PF1 | PF0); + w[p0] = r0.l; + + p0.h = hi(FIO_DIR); + p0.l = lo(FIO_DIR); + r0.l = (PF1 | PF0); + w[p0] = r0.l; + + p0.h = hi(FIO_FLAG_C); + p0.l = lo(FIO_FLAG_C); + r0.l = (PF1 | PF0); + w[p0] = r0.l; +#endif + + /* Clear the bits 13-15 in SWRST if they werent cleared */ + p0.h = hi(SICA_SWRST); + p0.l = lo(SICA_SWRST); + csync; + r0.l = w[p0]; + + /* Clear the IMASK register */ + p0.h = hi(IMASK); + p0.l = lo(IMASK); + r0 = 0x0; + [p0] = r0; + + /* Clear the ILAT register */ + p0.h = hi(ILAT); + p0.l = lo(ILAT); + r0 = [p0]; + [p0] = r0; + SSYNC; + + /* Disable the WDOG TIMER */ + p0.h = hi(WDOGA_CTL); + p0.l = lo(WDOGA_CTL); + r0.l = 0xAD6; + w[p0] = r0.l; + SSYNC; + + /* Clear the sticky bit incase it is already set */ + p0.h = hi(WDOGA_CTL); + p0.l = lo(WDOGA_CTL); + r0.l = 0x8AD6; + w[p0] = r0.l; + SSYNC; + + /* Program the count value */ + R0.l = 0x100; + R0.h = 0x0; + P0.h = hi(WDOGA_CNT); + P0.l = lo(WDOGA_CNT); + [P0] = R0; + SSYNC; + + /* Program WDOG_STAT if necessary */ + P0.h = hi(WDOGA_CTL); + P0.l = lo(WDOGA_CTL); + R0 = W[P0](Z); + CC = BITTST(R0,1); + if !CC JUMP .LWRITESTAT; + CC = BITTST(R0,2); + if !CC JUMP .LWRITESTAT; + JUMP .LSKIP_WRITE; + +.LWRITESTAT: + /* When watch dog timer is enabled, + * a write to STAT will load the contents of CNT to STAT + */ + R0 = 0x0000(z); + P0.h = hi(WDOGA_STAT); + P0.l = lo(WDOGA_STAT) + [P0] = R0; + SSYNC; + +.LSKIP_WRITE: + /* Enable the reset event */ + P0.h = hi(WDOGA_CTL); + P0.l = lo(WDOGA_CTL); + R0 = W[P0](Z); + BITCLR(R0,1); + BITCLR(R0,2); + W[P0] = R0.L; + SSYNC; + NOP; + + /* Enable the wdog counter */ + R0 = W[P0](Z); + BITCLR(R0,4); + W[P0] = R0.L; + SSYNC; + + IDLE; + + RTS; + +.data + +/* + * Set up the usable of RAM stuff. Size of RAM is determined then + * an initial stack set up at the end. + */ + +.align 4 +__rambase: +.long 0 +__ramstart: +.long 0 +__ramend: +.long 0 diff --git a/arch/blackfin/mach-bf561/ints-priority.c b/arch/blackfin/mach-bf561/ints-priority.c new file mode 100644 index 0000000..89c52ff --- /dev/null +++ b/arch/blackfin/mach-bf561/ints-priority.c @@ -0,0 +1,108 @@ +/* + * File: arch/blackfin/mach-bf561/ints-priority.c + * Based on: arch/blackfin/mach-bf537/ints-priority.c + * Author: Michael Hennerich + * + * Created: + * Description: Set up the interupt priorities + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <asm/blackfin.h> +#include <asm/irq.h> + +void program_IAR(void) +{ + /* Program the IAR0 Register with the configured priority */ + bfin_write_SICA_IAR0(((CONFIG_IRQ_PLL_WAKEUP - 7) << IRQ_PLL_WAKEUP_POS) | + ((CONFIG_IRQ_DMA1_ERROR - 7) << IRQ_DMA1_ERROR_POS) | + ((CONFIG_IRQ_DMA2_ERROR - 7) << IRQ_DMA2_ERROR_POS) | + ((CONFIG_IRQ_IMDMA_ERROR - 7) << IRQ_IMDMA_ERROR_POS) | + ((CONFIG_IRQ_PPI0_ERROR - 7) << IRQ_PPI0_ERROR_POS) | + ((CONFIG_IRQ_PPI1_ERROR - 7) << IRQ_PPI1_ERROR_POS) | + ((CONFIG_IRQ_SPORT0_ERROR - 7) << IRQ_SPORT0_ERROR_POS) | + ((CONFIG_IRQ_SPORT1_ERROR - 7) << IRQ_SPORT1_ERROR_POS)); + + bfin_write_SICA_IAR1(((CONFIG_IRQ_SPI_ERROR - 7) << IRQ_SPI_ERROR_POS) | + ((CONFIG_IRQ_UART_ERROR - 7) << IRQ_UART_ERROR_POS) | + ((CONFIG_IRQ_RESERVED_ERROR - 7) << IRQ_RESERVED_ERROR_POS) | + ((CONFIG_IRQ_DMA1_0 - 7) << IRQ_DMA1_0_POS) | + ((CONFIG_IRQ_DMA1_1 - 7) << IRQ_DMA1_1_POS) | + ((CONFIG_IRQ_DMA1_2 - 7) << IRQ_DMA1_2_POS) | + ((CONFIG_IRQ_DMA1_3 - 7) << IRQ_DMA1_3_POS) | + ((CONFIG_IRQ_DMA1_4 - 7) << IRQ_DMA1_4_POS)); + + bfin_write_SICA_IAR2(((CONFIG_IRQ_DMA1_5 - 7) << IRQ_DMA1_5_POS) | + ((CONFIG_IRQ_DMA1_6 - 7) << IRQ_DMA1_6_POS) | + ((CONFIG_IRQ_DMA1_7 - 7) << IRQ_DMA1_7_POS) | + ((CONFIG_IRQ_DMA1_8 - 7) << IRQ_DMA1_8_POS) | + ((CONFIG_IRQ_DMA1_9 - 7) << IRQ_DMA1_9_POS) | + ((CONFIG_IRQ_DMA1_10 - 7) << IRQ_DMA1_10_POS) | + ((CONFIG_IRQ_DMA1_11 - 7) << IRQ_DMA1_11_POS) | + ((CONFIG_IRQ_DMA2_0 - 7) << IRQ_DMA2_0_POS)); + + bfin_write_SICA_IAR3(((CONFIG_IRQ_DMA2_1 - 7) << IRQ_DMA2_1_POS) | + ((CONFIG_IRQ_DMA2_2 - 7) << IRQ_DMA2_2_POS) | + ((CONFIG_IRQ_DMA2_3 - 7) << IRQ_DMA2_3_POS) | + ((CONFIG_IRQ_DMA2_4 - 7) << IRQ_DMA2_4_POS) | + ((CONFIG_IRQ_DMA2_5 - 7) << IRQ_DMA2_5_POS) | + ((CONFIG_IRQ_DMA2_6 - 7) << IRQ_DMA2_6_POS) | + ((CONFIG_IRQ_DMA2_7 - 7) << IRQ_DMA2_7_POS) | + ((CONFIG_IRQ_DMA2_8 - 7) << IRQ_DMA2_8_POS)); + + bfin_write_SICA_IAR4(((CONFIG_IRQ_DMA2_9 - 7) << IRQ_DMA2_9_POS) | + ((CONFIG_IRQ_DMA2_10 - 7) << IRQ_DMA2_10_POS) | + ((CONFIG_IRQ_DMA2_11 - 7) << IRQ_DMA2_11_POS) | + ((CONFIG_IRQ_TIMER0 - 7) << IRQ_TIMER0_POS) | + ((CONFIG_IRQ_TIMER1 - 7) << IRQ_TIMER1_POS) | + ((CONFIG_IRQ_TIMER2 - 7) << IRQ_TIMER2_POS) | + ((CONFIG_IRQ_TIMER3 - 7) << IRQ_TIMER3_POS) | + ((CONFIG_IRQ_TIMER4 - 7) << IRQ_TIMER4_POS)); + + bfin_write_SICA_IAR5(((CONFIG_IRQ_TIMER5 - 7) << IRQ_TIMER5_POS) | + ((CONFIG_IRQ_TIMER6 - 7) << IRQ_TIMER6_POS) | + ((CONFIG_IRQ_TIMER7 - 7) << IRQ_TIMER7_POS) | + ((CONFIG_IRQ_TIMER8 - 7) << IRQ_TIMER8_POS) | + ((CONFIG_IRQ_TIMER9 - 7) << IRQ_TIMER9_POS) | + ((CONFIG_IRQ_TIMER10 - 7) << IRQ_TIMER10_POS) | + ((CONFIG_IRQ_TIMER11 - 7) << IRQ_TIMER11_POS) | + ((CONFIG_IRQ_PROG0_INTA - 7) << IRQ_PROG0_INTA_POS)); + + bfin_write_SICA_IAR6(((CONFIG_IRQ_PROG0_INTB - 7) << IRQ_PROG0_INTB_POS) | + ((CONFIG_IRQ_PROG1_INTA - 7) << IRQ_PROG1_INTA_POS) | + ((CONFIG_IRQ_PROG1_INTB - 7) << IRQ_PROG1_INTB_POS) | + ((CONFIG_IRQ_PROG2_INTA - 7) << IRQ_PROG2_INTA_POS) | + ((CONFIG_IRQ_PROG2_INTB - 7) << IRQ_PROG2_INTB_POS) | + ((CONFIG_IRQ_DMA1_WRRD0 - 7) << IRQ_DMA1_WRRD0_POS) | + ((CONFIG_IRQ_DMA1_WRRD1 - 7) << IRQ_DMA1_WRRD1_POS) | + ((CONFIG_IRQ_DMA2_WRRD0 - 7) << IRQ_DMA2_WRRD0_POS)); + + bfin_write_SICA_IAR7(((CONFIG_IRQ_DMA2_WRRD1 - 7) << IRQ_DMA2_WRRD1_POS) | + ((CONFIG_IRQ_IMDMA_WRRD0 - 7) << IRQ_IMDMA_WRRD0_POS) | + ((CONFIG_IRQ_IMDMA_WRRD1 - 7) << IRQ_IMDMA_WRRD1_POS) | + ((CONFIG_IRQ_WDTIMER - 7) << IRQ_WDTIMER_POS) | + (0 << IRQ_RESERVED_1_POS) | (0 << IRQ_RESERVED_2_POS) | + (0 << IRQ_SUPPLE_0_POS) | (0 << IRQ_SUPPLE_1_POS)); + + SSYNC(); +} diff --git a/arch/blackfin/mach-common/Makefile b/arch/blackfin/mach-common/Makefile new file mode 100644 index 0000000..d3a4907 --- /dev/null +++ b/arch/blackfin/mach-common/Makefile @@ -0,0 +1,12 @@ +# +# arch/blackfin/mach-common/Makefile +# + +obj-y := \ + cache.o cacheinit.o cplbhdlr.o cplbmgr.o entry.o \ + interrupt.o lock.o dpmc.o irqpanic.o + +obj-$(CONFIG_CPLB_INFO) += cplbinfo.o +obj-$(CONFIG_BFIN_SINGLE_CORE) += ints-priority-sc.o +obj-$(CONFIG_BFIN_DUAL_CORE) += ints-priority-dc.o +obj-$(CONFIG_PM) += pm.o diff --git a/arch/blackfin/mach-common/cache.S b/arch/blackfin/mach-common/cache.S new file mode 100644 index 0000000..bb9446e --- /dev/null +++ b/arch/blackfin/mach-common/cache.S @@ -0,0 +1,253 @@ +/* + * File: arch/blackfin/mach-common/cache.S + * Based on: + * Author: LG Soft India + * + * Created: + * Description: cache control support + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> +#include <asm/cplb.h> +#include <asm/entry.h> +#include <asm/blackfin.h> +#include <asm/cache.h> + +.text +.align 2 +ENTRY(_cache_invalidate) + + /* + * Icache or DcacheA or DcacheB Invalidation + * or any combination thereof + * R0 has bits + * CPLB_ENABLE_ICACHE_P,CPLB_ENABLE_DCACHE_P,CPLB_ENABLE_DCACHE2_P + * set as required + */ + [--SP] = R7; + + R7 = R0; + CC = BITTST(R7,CPLB_ENABLE_ICACHE_P); + IF !CC JUMP .Lno_icache; + [--SP] = RETS; + CALL _icache_invalidate; + RETS = [SP++]; +.Lno_icache: + CC = BITTST(R7,CPLB_ENABLE_DCACHE_P); + IF !CC JUMP .Lno_dcache_a; + R0 = 0; /* specifies bank A */ + [--SP] = RETS; + CALL _dcache_invalidate; + RETS = [SP++]; +.Lno_dcache_a: + CC = BITTST(R7,CPLB_ENABLE_DCACHE2_P); + IF !CC JUMP .Lno_dcache_b; + R0 = 0; + BITSET(R0, 23); /* specifies bank B */ + [--SP] = RETS; + CALL _dcache_invalidate; + RETS = [SP++]; +.Lno_dcache_b: + R7 = [SP++]; + RTS; + +/* Invalidate the Entire Instruction cache by + * disabling IMC bit + */ +ENTRY(_icache_invalidate) +ENTRY(_invalidate_entire_icache) + [--SP] = ( R7:5); + + P0.L = (IMEM_CONTROL & 0xFFFF); + P0.H = (IMEM_CONTROL >> 16); + R7 = [P0]; + + /* Clear the IMC bit , All valid bits in the instruction + * cache are set to the invalid state + */ + BITCLR(R7,IMC_P); + CLI R6; + SSYNC; /* SSYNC required before invalidating cache. */ + .align 8; + [P0] = R7; + SSYNC; + STI R6; + + /* Configures the instruction cache agian */ + R6 = (IMC | ENICPLB); + R7 = R7 | R6; + + CLI R6; + SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */ + .align 8; + [P0] = R7; + SSYNC; + STI R6; + + ( R7:5) = [SP++]; + RTS; + +/* + * blackfin_cache_flush_range(start, end) + * Invalidate all cache lines assocoiated with this + * area of memory. + * + * start: Start address + * end: End address + */ +ENTRY(_blackfin_icache_flush_range) + R2 = -L1_CACHE_BYTES; + R2 = R0 & R2; + P0 = R2; + P1 = R1; + CSYNC; + IFLUSH [P0]; +1: + IFLUSH [P0++]; + CC = P0 < P1 (iu); + IF CC JUMP 1b (bp); + IFLUSH [P0]; + SSYNC; + RTS; + +/* + * blackfin_icache_dcache_flush_range(start, end) + * FLUSH all cache lines assocoiated with this + * area of memory. + * + * start: Start address + * end: End address + */ + +ENTRY(_blackfin_icache_dcache_flush_range) + R2 = -L1_CACHE_BYTES; + R2 = R0 & R2; + P0 = R2; + P1 = R1; + CSYNC; + IFLUSH [P0]; +1: + FLUSH [P0]; + IFLUSH [P0++]; + CC = P0 < P1 (iu); + IF CC JUMP 1b (bp); + IFLUSH [P0]; + FLUSH [P0]; + SSYNC; + RTS; + +/* Throw away all D-cached data in specified region without any obligation to + * write them back. However, we must clean the D-cached entries around the + * boundaries of the start and/or end address is not cache aligned. + * + * Start: start address, + * end : end address. + */ + +ENTRY(_blackfin_dcache_invalidate_range) + R2 = -L1_CACHE_BYTES; + R2 = R0 & R2; + P0 = R2; + P1 = R1; + CSYNC; + FLUSHINV[P0]; +1: + FLUSHINV[P0++]; + CC = P0 < P1 (iu); + IF CC JUMP 1b (bp); + + /* If the data crosses a cache line, then we'll be pointing to + * the last cache line, but won't have flushed/invalidated it yet, + * so do one more. + */ + FLUSHINV[P0]; + SSYNC; + RTS; + +/* Invalidate the Entire Data cache by + * clearing DMC[1:0] bits + */ +ENTRY(_invalidate_entire_dcache) +ENTRY(_dcache_invalidate) + [--SP] = ( R7:6); + + P0.L = (DMEM_CONTROL & 0xFFFF); + P0.H = (DMEM_CONTROL >> 16); + R7 = [P0]; + + /* Clear the DMC[1:0] bits, All valid bits in the data + * cache are set to the invalid state + */ + BITCLR(R7,DMC0_P); + BITCLR(R7,DMC1_P); + CLI R6; + SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */ + .align 8; + [P0] = R7; + SSYNC; + STI R6; + + /* Configures the data cache again */ + + R6 = DMEM_CNTR; + R7 = R7 | R6; + + CLI R6; + SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */ + .align 8; + [P0] = R7; + SSYNC; + STI R6; + + ( R7:6) = [SP++]; + RTS; + +ENTRY(_blackfin_dcache_flush_range) + R2 = -L1_CACHE_BYTES; + R2 = R0 & R2; + P0 = R2; + P1 = R1; + CSYNC; + FLUSH[P0]; +1: + FLUSH[P0++]; + CC = P0 < P1 (iu); + IF CC JUMP 1b (bp); + + /* If the data crosses a cache line, then we'll be pointing to + * the last cache line, but won't have flushed it yet, so do + * one more. + */ + FLUSH[P0]; + SSYNC; + RTS; + +ENTRY(_blackfin_dflush_page) + P1 = 1 << (PAGE_SHIFT - L1_CACHE_SHIFT); + P0 = R0; + CSYNC; + FLUSH[P0]; + LSETUP (.Lfl1, .Lfl1) LC0 = P1; +.Lfl1: FLUSH [P0++]; + SSYNC; + RTS; diff --git a/arch/blackfin/mach-common/cacheinit.S b/arch/blackfin/mach-common/cacheinit.S new file mode 100644 index 0000000..8c17f09 --- /dev/null +++ b/arch/blackfin/mach-common/cacheinit.S @@ -0,0 +1,137 @@ +/* + * File: arch/blackfin/mach-common/cacheinit.S + * Based on: + * Author: LG Soft India + * + * Created: ? + * Description: cache initialization + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* This function sets up the data and instruction cache. The + * tables like icplb table, dcplb table and Page Descriptor table + * are defined in cplbtab.h. You can configure those tables for + * your suitable requirements + */ + +#include <linux/linkage.h> +#include <asm/blackfin.h> + +.text + +#if defined(CONFIG_BLKFIN_CACHE) +ENTRY(_bfin_icache_init) + + /* Initialize Instruction CPLBS */ + + I0.L = (ICPLB_ADDR0 & 0xFFFF); + I0.H = (ICPLB_ADDR0 >> 16); + + I1.L = (ICPLB_DATA0 & 0xFFFF); + I1.H = (ICPLB_DATA0 >> 16); + + I2.L = _icplb_table; + I2.H = _icplb_table; + + r1 = -1; /* end point comparison */ + r3 = 15; /* max counter */ + +/* read entries from table */ + +.Lread_iaddr: + R0 = [I2++]; + CC = R0 == R1; + IF CC JUMP .Lidone; + [I0++] = R0; + +.Lread_idata: + R2 = [I2++]; + [I1++] = R2; + R3 = R3 + R1; + CC = R3 == R1; + IF !CC JUMP .Lread_iaddr; + +.Lidone: + /* Enable Instruction Cache */ + P0.l = (IMEM_CONTROL & 0xFFFF); + P0.h = (IMEM_CONTROL >> 16); + R1 = [P0]; + R0 = (IMC | ENICPLB); + R0 = R0 | R1; + + /* Anomaly 05000125 */ + CLI R2; + SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */ + .align 8; + [P0] = R0; + SSYNC; + STI R2; + RTS; +#endif + +#if defined(CONFIG_BLKFIN_DCACHE) +ENTRY(_bfin_dcache_init) + + /* Initialize Data CPLBS */ + + I0.L = (DCPLB_ADDR0 & 0xFFFF); + I0.H = (DCPLB_ADDR0 >> 16); + + I1.L = (DCPLB_DATA0 & 0xFFFF); + I1.H = (DCPLB_DATA0 >> 16); + + I2.L = _dcplb_table; + I2.H = _dcplb_table; + + R1 = -1; /* end point comparison */ + R3 = 15; /* max counter */ + + /* read entries from table */ +.Lread_daddr: + R0 = [I2++]; + cc = R0 == R1; + IF CC JUMP .Lddone; + [I0++] = R0; + +.Lread_ddata: + R2 = [I2++]; + [I1++] = R2; + R3 = R3 + R1; + CC = R3 == R1; + IF !CC JUMP .Lread_daddr; +.Lddone: + P0.L = (DMEM_CONTROL & 0xFFFF); + P0.H = (DMEM_CONTROL >> 16); + R1 = [P0]; + + R0 = DMEM_CNTR; + + R0 = R0 | R1; + /* Anomaly 05000125 */ + CLI R2; + SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */ + .align 8; + [P0] = R0; + SSYNC; + STI R2; + RTS; +#endif diff --git a/arch/blackfin/mach-common/cplbhdlr.S b/arch/blackfin/mach-common/cplbhdlr.S new file mode 100644 index 0000000..b979067 --- /dev/null +++ b/arch/blackfin/mach-common/cplbhdlr.S @@ -0,0 +1,130 @@ +/* + * File: arch/blackfin/mach-common/cplbhdlr.S + * Based on: + * Author: LG Soft India + * + * Created: ? + * Description: CPLB exception handler + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> +#include <asm/cplb.h> +#include <asm/entry.h> + +#ifdef CONFIG_EXCPT_IRQ_SYSC_L1 +.section .l1.text +#else +.text +#endif + +.type _cplb_mgr, STT_FUNC; +.type _panic_cplb_error, STT_FUNC; + +.align 2 + +.global __cplb_hdr; +.type __cplb_hdr, STT_FUNC; +ENTRY(__cplb_hdr) + R2 = SEQSTAT; + + /* Mask the contents of SEQSTAT and leave only EXCAUSE in R2 */ + R2 <<= 26; + R2 >>= 26; + + R1 = 0x23; /* Data access CPLB protection violation */ + CC = R2 == R1; + IF !CC JUMP .Lnot_data_write; + R0 = 2; /* is a write to data space*/ + JUMP .Lis_icplb_miss; + +.Lnot_data_write: + R1 = 0x2C; /* CPLB miss on an instruction fetch */ + CC = R2 == R1; + R0 = 0; /* is_data_miss == False*/ + IF CC JUMP .Lis_icplb_miss; + + R1 = 0x26; + CC = R2 == R1; + IF !CC JUMP .Lunknown; + + R0 = 1; /* is_data_miss == True*/ + +.Lis_icplb_miss: + +#if defined(CONFIG_BLKFIN_CACHE) || defined(CONFIG_BLKFIN_DCACHE) +# if defined(CONFIG_BLKFIN_CACHE) && !defined(CONFIG_BLKFIN_DCACHE) + R1 = CPLB_ENABLE_ICACHE; +# endif +# if !defined(CONFIG_BLKFIN_CACHE) && defined(CONFIG_BLKFIN_DCACHE) + R1 = CPLB_ENABLE_DCACHE; +# endif +# if defined(CONFIG_BLKFIN_CACHE) && defined(CONFIG_BLKFIN_DCACHE) + R1 = CPLB_ENABLE_DCACHE | CPLB_ENABLE_ICACHE; +# endif +#else + R1 = 0; +#endif + + [--SP] = RETS; + CALL _cplb_mgr; + RETS = [SP++]; + CC = R0 == 0; + IF !CC JUMP .Lnot_replaced; + RTS; + +/* + * Diagnostic exception handlers + */ +.Lunknown: + R0 = CPLB_UNKNOWN_ERR; + JUMP .Lcplb_error; + +.Lnot_replaced: + CC = R0 == CPLB_NO_UNLOCKED; + IF !CC JUMP .Lnext_check; + R0 = CPLB_NO_UNLOCKED; + JUMP .Lcplb_error; + +.Lnext_check: + CC = R0 == CPLB_NO_ADDR_MATCH; + IF !CC JUMP .Lnext_check2; + R0 = CPLB_NO_ADDR_MATCH; + JUMP .Lcplb_error; + +.Lnext_check2: + CC = R0 == CPLB_PROT_VIOL; + IF !CC JUMP .Lstrange_return_from_cplb_mgr; + R0 = CPLB_PROT_VIOL; + JUMP .Lcplb_error; + +.Lstrange_return_from_cplb_mgr: + IDLE; + CSYNC; + JUMP .Lstrange_return_from_cplb_mgr; + +.Lcplb_error: + R1 = sp; + SP += -12; + call _panic_cplb_error; + SP += 12; + JUMP _handle_bad_cplb; diff --git a/arch/blackfin/mach-common/cplbinfo.c b/arch/blackfin/mach-common/cplbinfo.c new file mode 100644 index 0000000..d65fac3 --- /dev/null +++ b/arch/blackfin/mach-common/cplbinfo.c @@ -0,0 +1,211 @@ +/* + * File: arch/blackfin/mach-common/cplbinfo.c + * Based on: + * Author: Sonic Zhang <sonic.zhang@analog.com> + * + * Created: Jan. 2005 + * Description: Display CPLB status + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/proc_fs.h> + +#include <asm/current.h> +#include <asm/uaccess.h> +#include <asm/system.h> + +#include <asm/cplb.h> +#include <asm/blackfin.h> + +#define CPLB_I 1 +#define CPLB_D 2 + +#define SYNC_SYS SSYNC() +#define SYNC_CORE CSYNC() + +#define CPLB_BIT_PAGESIZE 0x30000 + +static int page_size_table[4] = { + 0x00000400, /* 1K */ + 0x00001000, /* 4K */ + 0x00100000, /* 1M */ + 0x00400000 /* 4M */ +}; + +static char page_size_string_table[][4] = { "1K", "4K", "1M", "4M" }; + +static int cplb_find_entry(unsigned long *cplb_addr, + unsigned long *cplb_data, unsigned long addr, + unsigned long data) +{ + int ii; + + for (ii = 0; ii < 16; ii++) + if (addr >= cplb_addr[ii] && addr < cplb_addr[ii] + + page_size_table[(cplb_data[ii] & CPLB_BIT_PAGESIZE) >> 16] + && (cplb_data[ii] == data)) + return ii; + + return -1; +} + +static char *cplb_print_entry(char *buf, int type) +{ + unsigned long *p_addr = dpdt_table; + unsigned long *p_data = dpdt_table + 1; + unsigned long *p_icount = dpdt_swapcount_table; + unsigned long *p_ocount = dpdt_swapcount_table + 1; + unsigned long *cplb_addr = (unsigned long *)DCPLB_ADDR0; + unsigned long *cplb_data = (unsigned long *)DCPLB_DATA0; + int entry = 0, used_cplb = 0; + + if (type == CPLB_I) { + buf += sprintf(buf, "Instrction CPLB entry:\n"); + p_addr = ipdt_table; + p_data = ipdt_table + 1; + p_icount = ipdt_swapcount_table; + p_ocount = ipdt_swapcount_table + 1; + cplb_addr = (unsigned long *)ICPLB_ADDR0; + cplb_data = (unsigned long *)ICPLB_DATA0; + } else + buf += sprintf(buf, "Data CPLB entry:\n"); + + buf += sprintf(buf, "Address\t\tData\tSize\tValid\tLocked\tSwapin\ +\tiCount\toCount\n"); + + while (*p_addr != 0xffffffff) { + entry = cplb_find_entry(cplb_addr, cplb_data, *p_addr, *p_data); + if (entry >= 0) + used_cplb |= 1 << entry; + + buf += + sprintf(buf, + "0x%08lx\t0x%05lx\t%s\t%c\t%c\t%2d\t%ld\t%ld\n", + *p_addr, *p_data, + page_size_string_table[(*p_data & 0x30000) >> 16], + (*p_data & CPLB_VALID) ? 'Y' : 'N', + (*p_data & CPLB_LOCK) ? 'Y' : 'N', entry, *p_icount, + *p_ocount); + + p_addr += 2; + p_data += 2; + p_icount += 2; + p_ocount += 2; + } + + if (used_cplb != 0xffff) { + buf += sprintf(buf, "Unused/mismatched CPLBs:\n"); + + for (entry = 0; entry < 16; entry++) + if (0 == ((1 << entry) & used_cplb)) { + int flags = cplb_data[entry]; + buf += + sprintf(buf, + "%2d: 0x%08lx\t0x%05x\t%s\t%c\t%c\n", + entry, cplb_addr[entry], flags, + page_size_string_table[(flags & + 0x30000) >> + 16], + (flags & CPLB_VALID) ? 'Y' : 'N', + (flags & CPLB_LOCK) ? 'Y' : 'N'); + } + } + + buf += sprintf(buf, "\n"); + + return buf; +} + +static int cplbinfo_proc_output(char *buf) +{ + char *p; + + p = buf; + + p += sprintf(p, + "------------------ CPLB Information ------------------\n\n"); + + if (bfin_read_IMEM_CONTROL() & ENICPLB) + p = cplb_print_entry(p, CPLB_I); + else + p += sprintf(p, "Instruction CPLB is disabled.\n\n"); + + if (bfin_read_DMEM_CONTROL() & ENDCPLB) + p = cplb_print_entry(p, CPLB_D); + else + p += sprintf(p, "Data CPLB is disabled.\n"); + + return p - buf; +} + +static int cplbinfo_read_proc(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + int len; + + len = cplbinfo_proc_output(page); + if (len <= off + count) + *eof = 1; + *start = page + off; + len -= off; + if (len > count) + len = count; + if (len < 0) + len = 0; + return len; +} + +static int cplbinfo_write_proc(struct file *file, const char __user *buffer, + unsigned long count, void *data) +{ + printk(KERN_INFO "Reset the CPLB swap in/out counts.\n"); + memset(ipdt_swapcount_table, 0, MAX_SWITCH_I_CPLBS * sizeof(unsigned long)); + memset(dpdt_swapcount_table, 0, MAX_SWITCH_D_CPLBS * sizeof(unsigned long)); + + return count; +} + +static int __init cplbinfo_init(void) +{ + struct proc_dir_entry *entry; + + if ((entry = create_proc_entry("cplbinfo", 0, NULL)) == NULL) { + return -ENOMEM; + } + + entry->read_proc = cplbinfo_read_proc; + entry->write_proc = cplbinfo_write_proc; + entry->data = NULL; + + return 0; +} + +static void __exit cplbinfo_exit(void) +{ + remove_proc_entry("cplbinfo", NULL); +} + +module_init(cplbinfo_init); +module_exit(cplbinfo_exit); diff --git a/arch/blackfin/mach-common/cplbmgr.S b/arch/blackfin/mach-common/cplbmgr.S new file mode 100644 index 0000000..f5efc4b --- /dev/null +++ b/arch/blackfin/mach-common/cplbmgr.S @@ -0,0 +1,607 @@ +/* + * File: arch/blackfin/mach-common/cplbmgtr.S + * Based on: + * Author: LG Soft India + * + * Created: ? + * Description: CPLB replacement routine for CPLB mismatch + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Usage: int _cplb_mgr(is_data_miss,int enable_cache) + * is_data_miss==2 => Mark as Dirty, write to the clean data page + * is_data_miss==1 => Replace a data CPLB. + * is_data_miss==0 => Replace an instruction CPLB. + * + * Returns: + * CPLB_RELOADED => Successfully updated CPLB table. + * CPLB_NO_UNLOCKED => All CPLBs are locked, so cannot be evicted. + * This indicates that the CPLBs in the configuration + * tablei are badly configured, as this should never + * occur. + * CPLB_NO_ADDR_MATCH => The address being accessed, that triggered the + * exception, is not covered by any of the CPLBs in + * the configuration table. The application is + * presumably misbehaving. + * CPLB_PROT_VIOL => The address being accessed, that triggered the + * exception, was not a first-write to a clean Write + * Back Data page, and so presumably is a genuine + * violation of the page's protection attributes. + * The application is misbehaving. + */ + +#include <linux/linkage.h> +#include <asm/blackfin.h> +#include <asm/cplb.h> + +#ifdef CONFIG_EXCPT_IRQ_SYSC_L1 +.section .l1.text +#else +.text +#endif + +.align 2; +ENTRY(_cplb_mgr) + + [--SP]=( R7:4,P5:3 ); + + CC = R0 == 2; + IF CC JUMP .Ldcplb_write; + + CC = R0 == 0; + IF !CC JUMP .Ldcplb_miss_compare; + + /* ICPLB Miss Exception. We need to choose one of the + * currently-installed CPLBs, and replace it with one + * from the configuration table. + */ + + P4.L = (ICPLB_FAULT_ADDR & 0xFFFF); + P4.H = (ICPLB_FAULT_ADDR >> 16); + + P1 = 16; + P5.L = _page_size_table; + P5.H = _page_size_table; + + P0.L = (ICPLB_DATA0 & 0xFFFF); + P0.H = (ICPLB_DATA0 >> 16); + R4 = [P4]; /* Get faulting address*/ + R6 = 64; /* Advance past the fault address, which*/ + R6 = R6 + R4; /* we'll use if we find a match*/ + R3 = ((16 << 8) | 2); /* Extract mask, bits 16 and 17.*/ + + R5 = 0; +.Lisearch: + + R1 = [P0-0x100]; /* Address for this CPLB */ + + R0 = [P0++]; /* Info for this CPLB*/ + CC = BITTST(R0,0); /* Is the CPLB valid?*/ + IF !CC JUMP .Lnomatch; /* Skip it, if not.*/ + CC = R4 < R1(IU); /* If fault address less than page start*/ + IF CC JUMP .Lnomatch; /* then skip this one.*/ + R2 = EXTRACT(R0,R3.L) (Z); /* Get page size*/ + P1 = R2; + P1 = P5 + (P1<<2); /* index into page-size table*/ + R2 = [P1]; /* Get the page size*/ + R1 = R1 + R2; /* and add to page start, to get page end*/ + CC = R4 < R1(IU); /* and see whether fault addr is in page.*/ + IF !CC R4 = R6; /* If so, advance the address and finish loop.*/ + IF !CC JUMP .Lisearch_done; +.Lnomatch: + /* Go around again*/ + R5 += 1; + CC = BITTST(R5, 4); /* i.e CC = R5 >= 16*/ + IF !CC JUMP .Lisearch; + +.Lisearch_done: + I0 = R4; /* Fault address we'll search for*/ + + /* set up pointers */ + P0.L = (ICPLB_DATA0 & 0xFFFF); + P0.H = (ICPLB_DATA0 >> 16); + + /* The replacement procedure for ICPLBs */ + + P4.L = (IMEM_CONTROL & 0xFFFF); + P4.H = (IMEM_CONTROL >> 16); + + /* disable cplbs */ + R5 = [P4]; /* Control Register*/ + BITCLR(R5,ENICPLB_P); + CLI R1; + SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */ + .align 8; + [P4] = R5; + SSYNC; + STI R1; + + R1 = -1; /* end point comparison */ + R3 = 16; /* counter */ + + /* Search through CPLBs for first non-locked entry */ + /* Overwrite it by moving everyone else up by 1 */ +.Licheck_lock: + R0 = [P0++]; + R3 = R3 + R1; + CC = R3 == R1; + IF CC JUMP .Lall_locked; + CC = BITTST(R0, 0); /* an invalid entry is good */ + IF !CC JUMP .Lifound_victim; + CC = BITTST(R0,1); /* but a locked entry isn't */ + IF CC JUMP .Licheck_lock; + +.Lifound_victim: +#ifdef CONFIG_CPLB_INFO + R7 = [P0 - 0x104]; + P2.L = _ipdt_table; + P2.H = _ipdt_table; + P3.L = _ipdt_swapcount_table; + P3.H = _ipdt_swapcount_table; + P3 += -4; +.Licount: + R2 = [P2]; /* address from config table */ + P2 += 8; + P3 += 8; + CC = R2==-1; + IF CC JUMP .Licount_done; + CC = R7==R2; + IF !CC JUMP .Licount; + R7 = [P3]; + R7 += 1; + [P3] = R7; + CSYNC; +.Licount_done: +#endif + LC0=R3; + LSETUP(.Lis_move,.Lie_move) LC0; +.Lis_move: + R0 = [P0]; + [P0 - 4] = R0; + R0 = [P0 - 0x100]; + [P0-0x104] = R0; +.Lie_move:P0+=4; + + /* We've made space in the ICPLB table, so that ICPLB15 + * is now free to be overwritten. Next, we have to determine + * which CPLB we need to install, from the configuration + * table. This is a matter of getting the start-of-page + * addresses and page-lengths from the config table, and + * determining whether the fault address falls within that + * range. + */ + + P2.L = _ipdt_table; + P2.H = _ipdt_table; +#ifdef CONFIG_CPLB_INFO + P3.L = _ipdt_swapcount_table; + P3.H = _ipdt_swapcount_table; + P3 += -8; +#endif + P0.L = _page_size_table; + P0.H = _page_size_table; + + /* Retrieve our fault address (which may have been advanced + * because the faulting instruction crossed a page boundary). + */ + + R0 = I0; + + /* An extraction pattern, to get the page-size bits from + * the CPLB data entry. Bits 16-17, so two bits at posn 16. + */ + + R1 = ((16<<8)|2); +.Linext: R4 = [P2++]; /* address from config table */ + R2 = [P2++]; /* data from config table */ +#ifdef CONFIG_CPLB_INFO + P3 += 8; +#endif + + CC = R4 == -1; /* End of config table*/ + IF CC JUMP .Lno_page_in_table; + + /* See if failed address > start address */ + CC = R4 <= R0(IU); + IF !CC JUMP .Linext; + + /* extract page size (17:16)*/ + R3 = EXTRACT(R2, R1.L) (Z); + + /* add page size to addr to get range */ + + P5 = R3; + P5 = P0 + (P5 << 2); /* scaled, for int access*/ + R3 = [P5]; + R3 = R3 + R4; + + /* See if failed address < (start address + page size) */ + CC = R0 < R3(IU); + IF !CC JUMP .Linext; + + /* We've found a CPLB in the config table that covers + * the faulting address, so install this CPLB into the + * last entry of the table. + */ + + P1.L = (ICPLB_DATA15 & 0xFFFF); /* ICPLB_DATA15 */ + P1.H = (ICPLB_DATA15 >> 16); + [P1] = R2; + [P1-0x100] = R4; +#ifdef CONFIG_CPLB_INFO + R3 = [P3]; + R3 += 1; + [P3] = R3; +#endif + + /* P4 points to IMEM_CONTROL, and R5 contains its old + * value, after we disabled ICPLBS. Re-enable them. + */ + + BITSET(R5,ENICPLB_P); + CLI R2; + SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */ + .align 8; + [P4] = R5; + SSYNC; + STI R2; + + ( R7:4,P5:3 ) = [SP++]; + R0 = CPLB_RELOADED; + RTS; + +/* FAILED CASES*/ +.Lno_page_in_table: + ( R7:4,P5:3 ) = [SP++]; + R0 = CPLB_NO_ADDR_MATCH; + RTS; +.Lall_locked: + ( R7:4,P5:3 ) = [SP++]; + R0 = CPLB_NO_UNLOCKED; + RTS; +.Lprot_violation: + ( R7:4,P5:3 ) = [SP++]; + R0 = CPLB_PROT_VIOL; + RTS; + +.Ldcplb_write: + + /* if a DCPLB is marked as write-back (CPLB_WT==0), and + * it is clean (CPLB_DIRTY==0), then a write to the + * CPLB's page triggers a protection violation. We have to + * mark the CPLB as dirty, to indicate that there are + * pending writes associated with the CPLB. + */ + + P4.L = (DCPLB_STATUS & 0xFFFF); + P4.H = (DCPLB_STATUS >> 16); + P3.L = (DCPLB_DATA0 & 0xFFFF); + P3.H = (DCPLB_DATA0 >> 16); + R5 = [P4]; + + /* A protection violation can be caused by more than just writes + * to a clean WB page, so we have to ensure that: + * - It's a write + * - to a clean WB page + * - and is allowed in the mode the access occurred. + */ + + CC = BITTST(R5, 16); /* ensure it was a write*/ + IF !CC JUMP .Lprot_violation; + + /* to check the rest, we have to retrieve the DCPLB.*/ + + /* The low half of DCPLB_STATUS is a bit mask*/ + + R2 = R5.L (Z); /* indicating which CPLB triggered the event.*/ + R3 = 30; /* so we can use this to determine the offset*/ + R2.L = SIGNBITS R2; + R2 = R2.L (Z); /* into the DCPLB table.*/ + R3 = R3 - R2; + P4 = R3; + P3 = P3 + (P4<<2); + R3 = [P3]; /* Retrieve the CPLB*/ + + /* Now we can check whether it's a clean WB page*/ + + CC = BITTST(R3, 14); /* 0==WB, 1==WT*/ + IF CC JUMP .Lprot_violation; + CC = BITTST(R3, 7); /* 0 == clean, 1 == dirty*/ + IF CC JUMP .Lprot_violation; + + /* Check whether the write is allowed in the mode that was active.*/ + + R2 = 1<<3; /* checking write in user mode*/ + CC = BITTST(R5, 17); /* 0==was user, 1==was super*/ + R5 = CC; + R2 <<= R5; /* if was super, check write in super mode*/ + R2 = R3 & R2; + CC = R2 == 0; + IF CC JUMP .Lprot_violation; + + /* It's a genuine write-to-clean-page.*/ + + BITSET(R3, 7); /* mark as dirty*/ + [P3] = R3; /* and write back.*/ + NOP; + CSYNC; + ( R7:4,P5:3 ) = [SP++]; + R0 = CPLB_RELOADED; + RTS; + +.Ldcplb_miss_compare: + + /* Data CPLB Miss event. We need to choose a CPLB to + * evict, and then locate a new CPLB to install from the + * config table, that covers the faulting address. + */ + + P1.L = (DCPLB_DATA15 & 0xFFFF); + P1.H = (DCPLB_DATA15 >> 16); + + P4.L = (DCPLB_FAULT_ADDR & 0xFFFF); + P4.H = (DCPLB_FAULT_ADDR >> 16); + R4 = [P4]; + I0 = R4; + + /* The replacement procedure for DCPLBs*/ + + R6 = R1; /* Save for later*/ + + /* Turn off CPLBs while we work.*/ + P4.L = (DMEM_CONTROL & 0xFFFF); + P4.H = (DMEM_CONTROL >> 16); + R5 = [P4]; + BITCLR(R5,ENDCPLB_P); + CLI R0; + SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */ + .align 8; + [P4] = R5; + SSYNC; + STI R0; + + /* Start looking for a CPLB to evict. Our order of preference + * is: invalid CPLBs, clean CPLBs, dirty CPLBs. Locked CPLBs + * are no good. + */ + + I1.L = (DCPLB_DATA0 & 0xFFFF); + I1.H = (DCPLB_DATA0 >> 16); + P1 = 2; + P2 = 16; + I2.L = _dcplb_preference; + I2.H = _dcplb_preference; + LSETUP(.Lsdsearch1, .Ledsearch1) LC0 = P1; +.Lsdsearch1: + R0 = [I2++]; /* Get the bits we're interested in*/ + P0 = I1; /* Go back to start of table*/ + LSETUP (.Lsdsearch2, .Ledsearch2) LC1 = P2; +.Lsdsearch2: + R1 = [P0++]; /* Fetch each installed CPLB in turn*/ + R2 = R1 & R0; /* and test for interesting bits.*/ + CC = R2 == 0; /* If none are set, it'll do.*/ + IF !CC JUMP .Lskip_stack_check; + + R2 = [P0 - 0x104]; /* R2 - PageStart */ + P3.L = _page_size_table; /* retrieve end address */ + P3.H = _page_size_table; /* retrieve end address */ + R3 = 0x1002; /* 16th - position, 2 bits -length */ +#ifdef ANOMALY_05000209 + nop; /* Anomaly 05000209 */ +#endif + R7 = EXTRACT(R1,R3.l); + R7 = R7 << 2; /* Page size index offset */ + P5 = R7; + P3 = P3 + P5; + R7 = [P3]; /* page size in bytes */ + + R7 = R2 + R7; /* R7 - PageEnd */ + R4 = SP; /* Test SP is in range */ + + CC = R7 < R4; /* if PageEnd < SP */ + IF CC JUMP .Ldfound_victim; + R3 = 0x284; /* stack length from start of trap till + * the point. + * 20 stack locations for future modifications + */ + R4 = R4 + R3; + CC = R4 < R2; /* if SP + stacklen < PageStart */ + IF CC JUMP .Ldfound_victim; +.Lskip_stack_check: + +.Ledsearch2: NOP; +.Ledsearch1: NOP; + + /* If we got here, we didn't find a DCPLB we considered + * replacable, which means all of them were locked. + */ + + JUMP .Lall_locked; +.Ldfound_victim: + +#ifdef CONFIG_CPLB_INFO + R7 = [P0 - 0x104]; + P2.L = _dpdt_table; + P2.H = _dpdt_table; + P3.L = _dpdt_swapcount_table; + P3.H = _dpdt_swapcount_table; + P3 += -4; +.Ldicount: + R2 = [P2]; + P2 += 8; + P3 += 8; + CC = R2==-1; + IF CC JUMP .Ldicount_done; + CC = R7==R2; + IF !CC JUMP .Ldicount; + R7 = [P3]; + R7 += 1; + [P3] = R7; +.Ldicount_done: +#endif + + /* Clean down the hardware loops*/ + R2 = 0; + LC1 = R2; + LC0 = R2; + + /* There's a suitable victim in [P0-4] (because we've + * advanced already). + */ + +.LDdoverwrite: + + /* [P0-4] is a suitable victim CPLB, so we want to + * overwrite it by moving all the following CPLBs + * one space closer to the start. + */ + + R1.L = (DCPLB_DATA16 & 0xFFFF); /* DCPLB_DATA15 + 4 */ + R1.H = (DCPLB_DATA16 >> 16); + R0 = P0; + + /* If the victim happens to be in DCPLB15, + * we don't need to move anything. + */ + + CC = R1 == R0; + IF CC JUMP .Lde_moved; + R1 = R1 - R0; + R1 >>= 2; + P1 = R1; + LSETUP(.Lds_move, .Lde_move) LC0=P1; +.Lds_move: + R0 = [P0++]; /* move data */ + [P0 - 8] = R0; + R0 = [P0-0x104] /* move address */ +.Lde_move: [P0-0x108] = R0; + + /* We've now made space in DCPLB15 for the new CPLB to be + * installed. The next stage is to locate a CPLB in the + * config table that covers the faulting address. + */ + +.Lde_moved:NOP; + R0 = I0; /* Our faulting address */ + + P2.L = _dpdt_table; + P2.H = _dpdt_table; +#ifdef CONFIG_CPLB_INFO + P3.L = _dpdt_swapcount_table; + P3.H = _dpdt_swapcount_table; + P3 += -8; +#endif + + P1.L = _page_size_table; + P1.H = _page_size_table; + + /* An extraction pattern, to retrieve bits 17:16.*/ + + R1 = (16<<8)|2; +.Ldnext: R4 = [P2++]; /* address */ + R2 = [P2++]; /* data */ +#ifdef CONFIG_CPLB_INFO + P3 += 8; +#endif + + CC = R4 == -1; + IF CC JUMP .Lno_page_in_table; + + /* See if failed address > start address */ + CC = R4 <= R0(IU); + IF !CC JUMP .Ldnext; + + /* extract page size (17:16)*/ + R3 = EXTRACT(R2, R1.L) (Z); + + /* add page size to addr to get range */ + + P5 = R3; + P5 = P1 + (P5 << 2); + R3 = [P5]; + R3 = R3 + R4; + + /* See if failed address < (start address + page size) */ + CC = R0 < R3(IU); + IF !CC JUMP .Ldnext; + + /* We've found the CPLB that should be installed, so + * write it into CPLB15, masking off any caching bits + * if necessary. + */ + + P1.L = (DCPLB_DATA15 & 0xFFFF); + P1.H = (DCPLB_DATA15 >> 16); + + /* If the DCPLB has cache bits set, but caching hasn't + * been enabled, then we want to mask off the cache-in-L1 + * bit before installing. Moreover, if caching is off, we + * also want to ensure that the DCPLB has WT mode set, rather + * than WB, since WB pages still trigger first-write exceptions + * even when not caching is off, and the page isn't marked as + * cachable. Finally, we could mark the page as clean, not dirty, + * but we choose to leave that decision to the user; if the user + * chooses to have a CPLB pre-defined as dirty, then they always + * pay the cost of flushing during eviction, but don't pay the + * cost of first-write exceptions to mark the page as dirty. + */ + +#ifdef CONFIG_BLKFIN_WT + BITSET(R6, 14); /* Set WT*/ +#endif + + [P1] = R2; + [P1-0x100] = R4; +#ifdef CONFIG_CPLB_INFO + R3 = [P3]; + R3 += 1; + [P3] = R3; +#endif + + /* We've installed the CPLB, so re-enable CPLBs. P4 + * points to DMEM_CONTROL, and R5 is the value we + * last wrote to it, when we were disabling CPLBs. + */ + + BITSET(R5,ENDCPLB_P); + CLI R2; + .align 8; + [P4] = R5; + SSYNC; + STI R2; + + ( R7:4,P5:3 ) = [SP++]; + R0 = CPLB_RELOADED; + RTS; + +.data +.align 4; +_page_size_table: +.byte4 0x00000400; /* 1K */ +.byte4 0x00001000; /* 4K */ +.byte4 0x00100000; /* 1M */ +.byte4 0x00400000; /* 4M */ + +.align 4; +_dcplb_preference: +.byte4 0x00000001; /* valid bit */ +.byte4 0x00000002; /* lock bit */ diff --git a/arch/blackfin/mach-common/dpmc.S b/arch/blackfin/mach-common/dpmc.S new file mode 100644 index 0000000..97cdcd6 --- /dev/null +++ b/arch/blackfin/mach-common/dpmc.S @@ -0,0 +1,418 @@ +/* + * File: arch/blackfin/mach-common/dpmc.S + * Based on: + * Author: LG Soft India + * + * Created: ? + * Description: Watchdog Timer APIs + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> +#include <asm/blackfin.h> +#include <asm/mach/irq.h> + +.text + +ENTRY(_unmask_wdog_wakeup_evt) + [--SP] = ( R7:0, P5:0 ); +#if defined(CONFIG_BF561) + P0.H = hi(SICA_IWR1); + P0.L = lo(SICA_IWR1); +#else + P0.h = (SIC_IWR >> 16); + P0.l = (SIC_IWR & 0xFFFF); +#endif + R7 = [P0]; +#if defined(CONFIG_BF561) + BITSET(R7, 27); +#else + BITSET(R7,(IRQ_WATCH - IVG7)); +#endif + [P0] = R7; + SSYNC; + + ( R7:0, P5:0 ) = [SP++]; + RTS; + +.LWRITE_TO_STAT: + /* When watch dog timer is enabled, a write to STAT will load the + * contents of CNT to STAT + */ + R7 = 0x0000(z); +#if defined(CONFIG_BF561) + P0.h = (WDOGA_STAT >> 16); + P0.l = (WDOGA_STAT & 0xFFFF); +#else + P0.h = (WDOG_STAT >> 16); + P0.l = (WDOG_STAT & 0xFFFF); +#endif + [P0] = R7; + SSYNC; + JUMP .LSKIP_WRITE_TO_STAT; + +ENTRY(_program_wdog_timer) + [--SP] = ( R7:0, P5:0 ); +#if defined(CONFIG_BF561) + P0.h = (WDOGA_CNT >> 16); + P0.l = (WDOGA_CNT & 0xFFFF); +#else + P0.h = (WDOG_CNT >> 16); + P0.l = (WDOG_CNT & 0xFFFF); +#endif + [P0] = R0; + SSYNC; + +#if defined(CONFIG_BF561) + P0.h = (WDOGA_CTL >> 16); + P0.l = (WDOGA_CTL & 0xFFFF); +#else + P0.h = (WDOG_CTL >> 16); + P0.l = (WDOG_CTL & 0xFFFF); +#endif + R7 = W[P0](Z); + CC = BITTST(R7,1); + if !CC JUMP .LWRITE_TO_STAT; + CC = BITTST(R7,2); + if !CC JUMP .LWRITE_TO_STAT; + +.LSKIP_WRITE_TO_STAT: +#if defined(CONFIG_BF561) + P0.h = (WDOGA_CTL >> 16); + P0.l = (WDOGA_CTL & 0xFFFF); +#else + P0.h = (WDOG_CTL >> 16); + P0.l = (WDOG_CTL & 0xFFFF); +#endif + R7 = W[P0](Z); + BITCLR(R7,1); /* Enable GP event */ + BITSET(R7,2); + W[P0] = R7.L; + SSYNC; + NOP; + + R7 = W[P0](Z); + BITCLR(R7,4); /* Enable the wdog counter */ + W[P0] = R7.L; + SSYNC; + + ( R7:0, P5:0 ) = [SP++]; + RTS; + +ENTRY(_clear_wdog_wakeup_evt) + [--SP] = ( R7:0, P5:0 ); + +#if defined(CONFIG_BF561) + P0.h = (WDOGA_CTL >> 16); + P0.l = (WDOGA_CTL & 0xFFFF); +#else + P0.h = (WDOG_CTL >> 16); + P0.l = (WDOG_CTL & 0xFFFF); +#endif + R7 = 0x0AD6(Z); + W[P0] = R7.L; + SSYNC; + + R7 = W[P0](Z); + BITSET(R7,15); + W[P0] = R7.L; + SSYNC; + + R7 = W[P0](Z); + BITSET(R7,1); + BITSET(R7,2); + W[P0] = R7.L; + SSYNC; + + ( R7:0, P5:0 ) = [SP++]; + RTS; + +ENTRY(_disable_wdog_timer) + [--SP] = ( R7:0, P5:0 ); +#if defined(CONFIG_BF561) + P0.h = (WDOGA_CTL >> 16); + P0.l = (WDOGA_CTL & 0xFFFF); +#else + P0.h = (WDOG_CTL >> 16); + P0.l = (WDOG_CTL & 0xFFFF); +#endif + R7 = 0xAD6(Z); + W[P0] = R7.L; + SSYNC; + ( R7:0, P5:0 ) = [SP++]; + RTS; + +#if !defined(CONFIG_BF561) + +.section .l1.text + +ENTRY(_sleep_mode) + [--SP] = ( R7:0, P5:0 ); + [--SP] = RETS; + + call _set_sic_iwr; + + R0 = 0xFFFF (Z); + call _set_rtc_istat + + P0.H = hi(PLL_CTL); + P0.L = lo(PLL_CTL); + R1 = W[P0](z); + BITSET (R1, 3); + W[P0] = R1.L; + + CLI R2; + SSYNC; + IDLE; + STI R2; + + call _test_pll_locked; + + R0 = IWR_ENABLE(0); + call _set_sic_iwr; + + P0.H = hi(PLL_CTL); + P0.L = lo(PLL_CTL); + R7 = w[p0](z); + BITCLR (R7, 3); + BITCLR (R7, 5); + w[p0] = R7.L; + IDLE; + call _test_pll_locked; + + RETS = [SP++]; + ( R7:0, P5:0 ) = [SP++]; + RTS; + +ENTRY(_hibernate_mode) + [--SP] = ( R7:0, P5:0 ); + [--SP] = RETS; + + call _set_sic_iwr; + + R0 = 0xFFFF (Z); + call _set_rtc_istat + + P0.H = hi(VR_CTL); + P0.L = lo(VR_CTL); + R1 = W[P0](z); + BITSET (R1, 8); + BITCLR (R1, 0); + BITCLR (R1, 1); + W[P0] = R1.L; + SSYNC; + + CLI R2; + IDLE; + + /* Actually, adding anything may not be necessary...SDRAM contents + * are lost + */ + +ENTRY(_deep_sleep) + [--SP] = ( R7:0, P5:0 ); + [--SP] = RETS; + + CLI R4; + + call _set_sic_iwr; + + call _set_sdram_srfs; + + /* Clear all the interrupts,bits sticky */ + R0 = 0xFFFF (Z); + call _set_rtc_istat + + P0.H = hi(PLL_CTL); + P0.L = lo(PLL_CTL); + R0 = W[P0](z); + BITSET (R0, 5); + W[P0] = R0.L; + + call _test_pll_locked; + + SSYNC; + IDLE; + + call _unset_sdram_srfs; + + call _test_pll_locked; + + R0 = IWR_ENABLE(0); + call _set_sic_iwr; + + P0.H = hi(PLL_CTL); + P0.L = lo(PLL_CTL); + R0 = w[p0](z); + BITCLR (R0, 3); + BITCLR (R0, 5); + BITCLR (R0, 8); + w[p0] = R0; + IDLE; + call _test_pll_locked; + + STI R4; + + RETS = [SP++]; + ( R7:0, P5:0 ) = [SP++]; + RTS; + +ENTRY(_sleep_deeper) + [--SP] = ( R7:0, P5:0 ); + [--SP] = RETS; + + CLI R4; + + P3 = R0; + R0 = IWR_ENABLE(0); + call _set_sic_iwr; + call _set_sdram_srfs; + + /* Clear all the interrupts,bits sticky */ + R0 = 0xFFFF (Z); + call _set_rtc_istat + + P0.H = hi(PLL_DIV); + P0.L = lo(PLL_DIV); + R6 = W[P0](z); + R0.L = 0xF; + W[P0] = R0.l; + + P0.H = hi(PLL_CTL); + P0.L = lo(PLL_CTL); + R5 = W[P0](z); + R0.L = (MIN_VC/CONFIG_CLKIN_HZ) << 9; + W[P0] = R0.l; + + SSYNC; + IDLE; + + call _test_pll_locked; + + P0.H = hi(VR_CTL); + P0.L = lo(VR_CTL); + R7 = W[P0](z); + R1 = 0x6; + R1 <<= 16; + R2 = 0x0404(Z); + R1 = R1|R2; + + R2 = DEPOSIT(R7, R1); + W[P0] = R2; + + SSYNC; + IDLE; + + call _test_pll_locked; + + P0.H = hi(PLL_CTL); + P0.L = lo(PLL_CTL); + R0 = W[P0](z); + BITSET (R0, 3); + W[P0] = R0.L; + + R0 = P3; + call _set_sic_iwr; + + SSYNC; + IDLE; + + call _test_pll_locked; + + R0 = IWR_ENABLE(0); + call _set_sic_iwr; + + P0.H = hi(VR_CTL); + P0.L = lo(VR_CTL); + W[P0]= R7; + + SSYNC; + IDLE; + + call _test_pll_locked; + + P0.H = hi(PLL_DIV); + P0.L = lo(PLL_DIV); + W[P0]= R6; + + P0.H = hi(PLL_CTL); + P0.L = lo(PLL_CTL); + w[p0] = R5; + IDLE; + call _test_pll_locked; + + call _unset_sdram_srfs; + + STI R4; + + RETS = [SP++]; + ( R7:0, P5:0 ) = [SP++]; + RTS; + +ENTRY(_set_sdram_srfs) + /* set the sdram to self refresh mode */ + P0.H = hi(EBIU_SDGCTL); + P0.L = lo(EBIU_SDGCTL); + R2 = [P0]; + R3.H = hi(SRFS); + R3.L = lo(SRFS); + R2 = R2|R3; + [P0] = R2; + ssync; + RTS; + +ENTRY(_unset_sdram_srfs) + /* set the sdram out of self refresh mode */ + P0.H = hi(EBIU_SDGCTL); + P0.L = lo(EBIU_SDGCTL); + R2 = [P0]; + R3.H = hi(SRFS); + R3.L = lo(SRFS); + R3 = ~R3; + R2 = R2&R3; + [P0] = R2; + ssync; + RTS; + +ENTRY(_set_sic_iwr) + P0.H = hi(SIC_IWR); + P0.L = lo(SIC_IWR); + [P0] = R0; + SSYNC; + RTS; + +ENTRY(_set_rtc_istat) + P0.H = hi(RTC_ISTAT); + P0.L = lo(RTC_ISTAT); + w[P0] = R0.L; + SSYNC; + RTS; + +ENTRY(_test_pll_locked) + P0.H = hi(PLL_STAT); + P0.L = lo(PLL_STAT); +1: + R0 = W[P0] (Z); + CC = BITTST(R0,5); + IF !CC JUMP 1b; + RTS; +#endif diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S new file mode 100644 index 0000000..8eb0a90 --- /dev/null +++ b/arch/blackfin/mach-common/entry.S @@ -0,0 +1,1207 @@ +/* + * File: arch/blackfin/mach-common/entry.S + * Based on: + * Author: Linus Torvalds + * + * Created: ? + * Description: contains the system-call and fault low-level handling routines. + * This also contains the timer-interrupt handler, as well as all + * interrupts and faults that can result in a task-switch. + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* + * 25-Dec-2004 - LG Soft India + * 1. Fix in return_from_int, to make sure any pending + * system call in ILAT for this process to get + * executed, otherwise in case context switch happens, + * system call of first process (i.e in ILAT) will be + * carried forward to the switched process. + * 2. Removed Constant references for the following + * a. IPEND + * b. EXCAUSE mask + * c. PAGE Mask + */ + +/* + * NOTE: This code handles signal-recognition, which happens every time + * after a timer-interrupt and after each system call. + */ + + +#include <linux/linkage.h> +#include <asm/blackfin.h> +#include <asm/unistd.h> +#include <asm/errno.h> +#include <asm/thread_info.h> /* TIF_NEED_RESCHED */ +#include <asm/asm-offsets.h> + +#include <asm/mach-common/context.S> + +#ifdef CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE + /* + * TODO: this should be proper save/restore, but for now + * we'll just cheat and use 0x1/0x13 + */ +# define DEBUG_START_HWTRACE \ + P5.l = LO(TBUFCTL); \ + P5.h = HI(TBUFCTL); \ + R7 = 0x13; \ + [P5] = R7; +# define DEBUG_STOP_HWTRACE \ + P5.l = LO(TBUFCTL); \ + P5.h = HI(TBUFCTL); \ + R7 = 0x01; \ + [P5] = R7; +#else +# define DEBUG_START_HWTRACE +# define DEBUG_STOP_HWTRACE +#endif + +#ifdef CONFIG_EXCPT_IRQ_SYSC_L1 +.section .l1.text +#else +.text +#endif + +/* Slightly simplified and streamlined entry point for CPLB misses. + * This one does not lower the level to IRQ5, and thus can be used to + * patch up CPLB misses on the kernel stack. + */ +ENTRY(_ex_dcplb) +#if defined(ANOMALY_05000261) + /* + * Work around an anomaly: if we see a new DCPLB fault, return + * without doing anything. Then, if we get the same fault again, + * handle it. + */ + p5.l = _last_cplb_fault_retx; + p5.h = _last_cplb_fault_retx; + r7 = [p5]; + r6 = retx; + [p5] = r6; + cc = r6 == r7; + if !cc jump _return_from_exception; + /* fall through */ +#endif + +ENTRY(_ex_icplb) + (R7:6,P5:4) = [sp++]; + ASTAT = [sp++]; + SAVE_ALL_SYS + call __cplb_hdr; + DEBUG_START_HWTRACE + RESTORE_ALL_SYS + SP = RETN; + rtx; + +ENTRY(_ex_spinlock) + /* Transform this into a syscall - twiddle the syscall vector. */ + p5.l = lo(EVT15); + p5.h = hi(EVT15); + r7.l = _spinlock_bh; + r7.h = _spinlock_bh; + [p5] = r7; + csync; + /* Fall through. */ + +ENTRY(_ex_syscall) + DEBUG_START_HWTRACE + (R7:6,P5:4) = [sp++]; + ASTAT = [sp++]; + raise 15; /* invoked by TRAP #0, for sys call */ + sp = retn; + rtx + +ENTRY(_spinlock_bh) + SAVE_ALL_SYS + /* To end up here, vector 15 was changed - so we have to change it + * back. + */ + p0.l = lo(EVT15); + p0.h = hi(EVT15); + p1.l = _evt_system_call; + p1.h = _evt_system_call; + [p0] = p1; + csync; + r0 = [sp + PT_R0]; + sp += -12; + call _sys_bfin_spinlock; + sp += 12; + [SP + PT_R0] = R0; + RESTORE_ALL_SYS + rti; + +ENTRY(_ex_soft_bp) + r7 = retx; + r7 += -2; + retx = r7; + jump.s _ex_trap_c; + +ENTRY(_ex_single_step) + r7 = retx; + r6 = reti; + cc = r7 == r6; + if cc jump _return_from_exception + r7 = syscfg; + bitclr (r7, 0); + syscfg = R7; + + p5.l = lo(IPEND); + p5.h = hi(IPEND); + r6 = [p5]; + cc = bittst(r6, 5); + if !cc jump _ex_trap_c; + p4.l = lo(EVT5); + p4.h = hi(EVT5); + r6.h = _exception_to_level5; + r6.l = _exception_to_level5; + r7 = [p4]; + cc = r6 == r7; + if !cc jump _ex_trap_c; + +_return_from_exception: + DEBUG_START_HWTRACE + (R7:6,P5:4) = [sp++]; + ASTAT = [sp++]; + sp = retn; + rtx; + +ENTRY(_handle_bad_cplb) + /* To get here, we just tried and failed to change a CPLB + * so, handle things in trap_c (C code), by lowering to + * IRQ5, just like we normally do. Since this is not a + * "normal" return path, we have a do alot of stuff to + * the stack to get ready so, we can fall through - we + * need to make a CPLB exception look like a normal exception + */ + + DEBUG_START_HWTRACE + RESTORE_ALL_SYS + [--sp] = ASTAT; + [--sp] = (R7:6, P5:4); + +ENTRY(_ex_trap_c) + /* Call C code (trap_c) to handle the exception, which most + * likely involves sending a signal to the current process. + * To avoid double faults, lower our priority to IRQ5 first. + */ + P5.h = _exception_to_level5; + P5.l = _exception_to_level5; + p4.l = lo(EVT5); + p4.h = hi(EVT5); + [p4] = p5; + csync; + + /* Disable all interrupts, but make sure level 5 is enabled so + * we can switch to that level. Save the old mask. */ + cli r6; + p4.l = _excpt_saved_imask; + p4.h = _excpt_saved_imask; + [p4] = r6; + r6 = 0x3f; + sti r6; + + /* Save the excause into a circular buffer, in case the instruction + * which caused this excecptions causes others. + */ + P5.l = _in_ptr_excause; + P5.h = _in_ptr_excause; + R7 = [P5]; + R7 += 4; + R6 = 0xF; + R7 = R7 & R6; + [P5] = R7; + R6.l = _excause_circ_buf; + R6.h = _excause_circ_buf; + R7 = R7 + R6; + p5 = R7; + R6 = SEQSTAT; + [P5] = R6; + + DEBUG_START_HWTRACE + (R7:6,P5:4) = [sp++]; + ASTAT = [sp++]; + SP = RETN; + raise 5; + rtx; + +ENTRY(_exception_to_level5) + SAVE_ALL_SYS + + /* Restore interrupt mask. We haven't pushed RETI, so this + * doesn't enable interrupts until we return from this handler. */ + p4.l = _excpt_saved_imask; + p4.h = _excpt_saved_imask; + r6 = [p4]; + sti r6; + + /* Restore the hardware error vector. */ + P5.h = _evt_ivhw; + P5.l = _evt_ivhw; + p4.l = lo(EVT5); + p4.h = hi(EVT5); + [p4] = p5; + csync; + + p2.l = lo(IPEND); + p2.h = hi(IPEND); + csync; + r0 = [p2]; /* Read current IPEND */ + [sp + PT_IPEND] = r0; /* Store IPEND */ + + /* Pop the excause from the circular buffer and push it on the stack + * (in the right place - if you change the location of SEQSTAT, you + * must change this offset. + */ +.L_excep_to_5_again: + P5.l = _out_ptr_excause; + P5.h = _out_ptr_excause; + R7 = [P5]; + R7 += 4; + R6 = 0xF; + R7 = R7 & R6; + [P5] = R7; + R6.l = _excause_circ_buf; + R6.h = _excause_circ_buf; + R7 = R7 + R6; + P5 = R7; + R1 = [P5]; + [SP + 8] = r1; + + r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */ + SP += -12; + call _trap_c; + SP += 12; + + /* See if anything else is in the exception buffer + * if there is, process it + */ + P5.l = _out_ptr_excause; + P5.h = _out_ptr_excause; + P4.l = _in_ptr_excause; + P4.h = _in_ptr_excause; + R6 = [P5]; + R7 = [P4]; + CC = R6 == R7; + if ! CC JUMP .L_excep_to_5_again + + call _ret_from_exception; + RESTORE_ALL_SYS + rti; + +ENTRY(_trap) /* Exception: 4th entry into system event table(supervisor mode)*/ + /* Since the kernel stack can be anywhere, it's not guaranteed to be + * covered by a CPLB. Switch to an exception stack; use RETN as a + * scratch register (for want of a better option). + */ + retn = sp; + sp.l = _exception_stack_top; + sp.h = _exception_stack_top; + /* Try to deal with syscalls quickly. */ + [--sp] = ASTAT; + [--sp] = (R7:6, P5:4); + DEBUG_STOP_HWTRACE + r7 = SEQSTAT; /* reason code is in bit 5:0 */ + r6.l = lo(SEQSTAT_EXCAUSE); + r6.h = hi(SEQSTAT_EXCAUSE); + r7 = r7 & r6; + p5.h = _extable; + p5.l = _extable; + p4 = r7; + p5 = p5 + (p4 << 2); + p4 = [p5]; + jump (p4); + +.Lbadsys: + r7 = -ENOSYS; /* signextending enough */ + [sp + PT_R0] = r7; /* return value from system call */ + jump .Lsyscall_really_exit; + +ENTRY(_kernel_execve) + link SIZEOF_PTREGS; + p0 = sp; + r3 = SIZEOF_PTREGS / 4; + r4 = 0(x); +0: + [p0++] = r4; + r3 += -1; + cc = r3 == 0; + if !cc jump 0b (bp); + + p0 = sp; + sp += -16; + [sp + 12] = p0; + call _do_execve; + SP += 16; + cc = r0 == 0; + if ! cc jump 1f; + /* Success. Copy our temporary pt_regs to the top of the kernel + * stack and do a normal exception return. + */ + r1 = sp; + r0 = (-KERNEL_STACK_SIZE) (x); + r1 = r1 & r0; + p2 = r1; + p3 = [p2]; + r0 = KERNEL_STACK_SIZE - 4 (z); + p1 = r0; + p1 = p1 + p2; + + p0 = fp; + r4 = [p0--]; + r3 = SIZEOF_PTREGS / 4; +0: + r4 = [p0--]; + [p1--] = r4; + r3 += -1; + cc = r3 == 0; + if ! cc jump 0b (bp); + + r0 = (KERNEL_STACK_SIZE - SIZEOF_PTREGS) (z); + p1 = r0; + p1 = p1 + p2; + sp = p1; + r0 = syscfg; + [SP + PT_SYSCFG] = r0; + [p3 + (TASK_THREAD + THREAD_KSP)] = sp; + + RESTORE_CONTEXT; + rti; +1: + unlink; + rts; + +ENTRY(_system_call) + /* Store IPEND */ + p2.l = lo(IPEND); + p2.h = hi(IPEND); + csync; + r0 = [p2]; + [sp + PT_IPEND] = r0; + + /* Store RETS for now */ + r0 = rets; + [sp + PT_RESERVED] = r0; + /* Set the stack for the current process */ + r7 = sp; + r6.l = lo(ALIGN_PAGE_MASK); + r6.h = hi(ALIGN_PAGE_MASK); + r7 = r7 & r6; /* thread_info */ + p2 = r7; + p2 = [p2]; + + [p2+(TASK_THREAD+THREAD_KSP)] = sp; + + /* Check the System Call */ + r7 = __NR_syscall; + /* System call number is passed in P0 */ + r6 = p0; + cc = r6 < r7; + if ! cc jump .Lbadsys; + + /* are we tracing syscalls?*/ + r7 = sp; + r6.l = lo(ALIGN_PAGE_MASK); + r6.h = hi(ALIGN_PAGE_MASK); + r7 = r7 & r6; + p2 = r7; + r7 = [p2+TI_FLAGS]; + CC = BITTST(r7,TIF_SYSCALL_TRACE); + if CC JUMP _sys_trace; + + /* Execute the appropriate system call */ + + p4 = p0; + p5.l = _sys_call_table; + p5.h = _sys_call_table; + p5 = p5 + (p4 << 2); + r0 = [sp + PT_R0]; + r1 = [sp + PT_R1]; + r2 = [sp + PT_R2]; + p5 = [p5]; + + [--sp] = r5; + [--sp] = r4; + [--sp] = r3; + SP += -12; + call (p5); + SP += 24; + [sp + PT_R0] = r0; + +.Lresume_userspace: + r7 = sp; + r4.l = lo(ALIGN_PAGE_MASK); + r4.h = hi(ALIGN_PAGE_MASK); + r7 = r7 & r4; /* thread_info->flags */ + p5 = r7; +.Lresume_userspace_1: + /* Disable interrupts. */ + [--sp] = reti; + reti = [sp++]; + + r7 = [p5 + TI_FLAGS]; + r4.l = lo(_TIF_WORK_MASK); + r4.h = hi(_TIF_WORK_MASK); + r7 = r7 & r4; + +.Lsyscall_resched: + cc = BITTST(r7, TIF_NEED_RESCHED); + if !cc jump .Lsyscall_sigpending; + + /* Reenable interrupts. */ + [--sp] = reti; + r0 = [sp++]; + + SP += -12; + call _schedule; + SP += 12; + + jump .Lresume_userspace_1; + +.Lsyscall_sigpending: + cc = BITTST(r7, TIF_RESTORE_SIGMASK); + if cc jump .Lsyscall_do_signals; + cc = BITTST(r7, TIF_SIGPENDING); + if !cc jump .Lsyscall_really_exit; +.Lsyscall_do_signals: + /* Reenable interrupts. */ + [--sp] = reti; + r0 = [sp++]; + + r0 = sp; + SP += -12; + call _do_signal; + SP += 12; + +.Lsyscall_really_exit: + r5 = [sp + PT_RESERVED]; + rets = r5; + rts; + +_sys_trace: + call _syscall_trace; + + /* Execute the appropriate system call */ + + p4 = [SP + PT_P0]; + p5.l = _sys_call_table; + p5.h = _sys_call_table; + p5 = p5 + (p4 << 2); + r0 = [sp + PT_R0]; + r1 = [sp + PT_R1]; + r2 = [sp + PT_R2]; + r3 = [sp + PT_R3]; + r4 = [sp + PT_R4]; + r5 = [sp + PT_R5]; + p5 = [p5]; + + [--sp] = r5; + [--sp] = r4; + [--sp] = r3; + SP += -12; + call (p5); + SP += 24; + [sp + PT_R0] = r0; + + call _syscall_trace; + jump .Lresume_userspace; + +ENTRY(_resume) + /* + * Beware - when entering resume, prev (the current task) is + * in r0, next (the new task) is in r1. + */ + p0 = r0; + p1 = r1; + [--sp] = rets; + [--sp] = fp; + [--sp] = (r7:4, p5:3); + + /* save usp */ + p2 = usp; + [p0+(TASK_THREAD+THREAD_USP)] = p2; + + /* save current kernel stack pointer */ + [p0+(TASK_THREAD+THREAD_KSP)] = sp; + + /* save program counter */ + r1.l = _new_old_task; + r1.h = _new_old_task; + [p0+(TASK_THREAD+THREAD_PC)] = r1; + + /* restore the kernel stack pointer */ + sp = [p1+(TASK_THREAD+THREAD_KSP)]; + + /* restore user stack pointer */ + p0 = [p1+(TASK_THREAD+THREAD_USP)]; + usp = p0; + + /* restore pc */ + p0 = [p1+(TASK_THREAD+THREAD_PC)]; + jump (p0); + + /* + * Following code actually lands up in a new (old) task. + */ + +_new_old_task: + (r7:4, p5:3) = [sp++]; + fp = [sp++]; + rets = [sp++]; + + /* + * When we come out of resume, r0 carries "old" task, becuase we are + * in "new" task. + */ + rts; + +ENTRY(_ret_from_exception) + p2.l = lo(IPEND); + p2.h = hi(IPEND); + + csync; + r0 = [p2]; + [sp + PT_IPEND] = r0; + +1: + r1 = 0x37(Z); + r2 = ~r1; + r2.h = 0; + r0 = r2 & r0; + cc = r0 == 0; + if !cc jump 4f; /* if not return to user mode, get out */ + + /* Make sure any pending system call or deferred exception + * return in ILAT for this process to get executed, otherwise + * in case context switch happens, system call of + * first process (i.e in ILAT) will be carried + * forward to the switched process + */ + + p2.l = lo(ILAT); + p2.h = hi(ILAT); + r0 = [p2]; + r1 = (EVT_IVG14 | EVT_IVG15) (z); + r0 = r0 & r1; + cc = r0 == 0; + if !cc jump 5f; + + /* Set the stack for the current process */ + r7 = sp; + r4.l = lo(ALIGN_PAGE_MASK); + r4.h = hi(ALIGN_PAGE_MASK); + r7 = r7 & r4; /* thread_info->flags */ + p5 = r7; + r7 = [p5 + TI_FLAGS]; + r4.l = lo(_TIF_WORK_MASK); + r4.h = hi(_TIF_WORK_MASK); + r7 = r7 & r4; + cc = r7 == 0; + if cc jump 4f; + + p0.l = lo(EVT15); + p0.h = hi(EVT15); + p1.l = _schedule_and_signal; + p1.h = _schedule_and_signal; + [p0] = p1; + csync; + raise 15; /* raise evt14 to do signal or reschedule */ +4: + r0 = syscfg; + bitclr(r0, 0); + syscfg = r0; +5: + rts; + +ENTRY(_return_from_int) + /* If someone else already raised IRQ 15, do nothing. */ + csync; + p2.l = lo(ILAT); + p2.h = hi(ILAT); + r0 = [p2]; + cc = bittst (r0, EVT_IVG15_P); + if cc jump 2f; + + /* if not return to user mode, get out */ + p2.l = lo(IPEND); + p2.h = hi(IPEND); + r0 = [p2]; + r1 = 0x17(Z); + r2 = ~r1; + r2.h = 0; + r0 = r2 & r0; + r1 = 1; + r1 = r0 - r1; + r2 = r0 & r1; + cc = r2 == 0; + if !cc jump 2f; + + /* Lower the interrupt level to 15. */ + p0.l = lo(EVT15); + p0.h = hi(EVT15); + p1.l = _schedule_and_signal_from_int; + p1.h = _schedule_and_signal_from_int; + [p0] = p1; + csync; +#if defined(ANOMALY_05000281) + r0.l = lo(CONFIG_BOOT_LOAD); + r0.h = hi(CONFIG_BOOT_LOAD); + reti = r0; +#endif + r0 = 0x801f (z); + STI r0; + raise 15; /* raise evt15 to do signal or reschedule */ + rti; +2: + rts; + +ENTRY(_lower_to_irq14) +#if defined(ANOMALY_05000281) + r0.l = lo(CONFIG_BOOT_LOAD); + r0.h = hi(CONFIG_BOOT_LOAD); + reti = r0; +#endif + r0 = 0x401f; + sti r0; + raise 14; + rti; +ENTRY(_evt14_softirq) +#ifdef CONFIG_DEBUG_HWERR + r0 = 0x3f; + sti r0; +#else + cli r0; +#endif + [--sp] = RETI; + SP += 4; + rts; + +_schedule_and_signal_from_int: + /* To end up here, vector 15 was changed - so we have to change it + * back. + */ + p0.l = lo(EVT15); + p0.h = hi(EVT15); + p1.l = _evt_system_call; + p1.h = _evt_system_call; + [p0] = p1; + csync; + p1 = rets; + [sp + PT_RESERVED] = p1; + + p0.l = _irq_flags; + p0.h = _irq_flags; + r0 = [p0]; + sti r0; + + jump.s .Lresume_userspace; + +_schedule_and_signal: + SAVE_CONTEXT_SYSCALL + /* To end up here, vector 15 was changed - so we have to change it + * back. + */ + p0.l = lo(EVT15); + p0.h = hi(EVT15); + p1.l = _evt_system_call; + p1.h = _evt_system_call; + [p0] = p1; + csync; + p0.l = 1f; + p0.h = 1f; + [sp + PT_RESERVED] = P0; + call .Lresume_userspace; +1: + RESTORE_CONTEXT + rti; + +/* Make sure when we start, that the circular buffer is initialized properly + * R0 and P0 are call clobbered, so we can use them here. + */ +ENTRY(_init_exception_buff) + r0 = 0; + p0.h = _in_ptr_excause; + p0.l = _in_ptr_excause; + [p0] = r0; + p0.h = _out_ptr_excause; + p0.l = _out_ptr_excause; + [p0] = r0; + rts; + +/* + * Put these in the kernel data section - that should always be covered by + * a CPLB. This is needed to ensure we don't get double fault conditions + */ + +#ifdef CONFIG_SYSCALL_TAB_L1 +.section .l1.data +#else +.data +#endif +ALIGN +_extable: + /* entry for each EXCAUSE[5:0] + * This table bmust be in sync with the table in ./kernel/traps.c + * EXCPT instruction can provide 4 bits of EXCAUSE, allowing 16 to be user defined + */ + .long _ex_syscall; /* 0x00 - User Defined - Linux Syscall */ + .long _ex_soft_bp /* 0x01 - User Defined - Software breakpoint */ + .long _ex_trap_c /* 0x02 - User Defined */ + .long _ex_trap_c /* 0x03 - User Defined - Atomic test and set service */ + .long _ex_spinlock /* 0x04 - User Defined */ + .long _ex_trap_c /* 0x05 - User Defined */ + .long _ex_trap_c /* 0x06 - User Defined */ + .long _ex_trap_c /* 0x07 - User Defined */ + .long _ex_trap_c /* 0x08 - User Defined */ + .long _ex_trap_c /* 0x09 - User Defined */ + .long _ex_trap_c /* 0x0A - User Defined */ + .long _ex_trap_c /* 0x0B - User Defined */ + .long _ex_trap_c /* 0x0C - User Defined */ + .long _ex_trap_c /* 0x0D - User Defined */ + .long _ex_trap_c /* 0x0E - User Defined */ + .long _ex_trap_c /* 0x0F - User Defined */ + .long _ex_single_step /* 0x10 - HW Single step */ + .long _ex_trap_c /* 0x11 - Trace Buffer Full */ + .long _ex_trap_c /* 0x12 - Reserved */ + .long _ex_trap_c /* 0x13 - Reserved */ + .long _ex_trap_c /* 0x14 - Reserved */ + .long _ex_trap_c /* 0x15 - Reserved */ + .long _ex_trap_c /* 0x16 - Reserved */ + .long _ex_trap_c /* 0x17 - Reserved */ + .long _ex_trap_c /* 0x18 - Reserved */ + .long _ex_trap_c /* 0x19 - Reserved */ + .long _ex_trap_c /* 0x1A - Reserved */ + .long _ex_trap_c /* 0x1B - Reserved */ + .long _ex_trap_c /* 0x1C - Reserved */ + .long _ex_trap_c /* 0x1D - Reserved */ + .long _ex_trap_c /* 0x1E - Reserved */ + .long _ex_trap_c /* 0x1F - Reserved */ + .long _ex_trap_c /* 0x20 - Reserved */ + .long _ex_trap_c /* 0x21 - Undefined Instruction */ + .long _ex_trap_c /* 0x22 - Illegal Instruction Combination */ + .long _ex_dcplb /* 0x23 - Data CPLB Protection Violation */ + .long _ex_trap_c /* 0x24 - Data access misaligned */ + .long _ex_trap_c /* 0x25 - Unrecoverable Event */ + .long _ex_dcplb /* 0x26 - Data CPLB Miss */ + .long _ex_trap_c /* 0x27 - Data CPLB Multiple Hits - Linux Trap Zero */ + .long _ex_trap_c /* 0x28 - Emulation Watchpoint */ + .long _ex_trap_c /* 0x29 - Instruction fetch access error (535 only) */ + .long _ex_trap_c /* 0x2A - Instruction fetch misaligned */ + .long _ex_icplb /* 0x2B - Instruction CPLB protection Violation */ + .long _ex_icplb /* 0x2C - Instruction CPLB miss */ + .long _ex_trap_c /* 0x2D - Instruction CPLB Multiple Hits */ + .long _ex_trap_c /* 0x2E - Illegal use of Supervisor Resource */ + .long _ex_trap_c /* 0x2E - Illegal use of Supervisor Resource */ + .long _ex_trap_c /* 0x2F - Reserved */ + .long _ex_trap_c /* 0x30 - Reserved */ + .long _ex_trap_c /* 0x31 - Reserved */ + .long _ex_trap_c /* 0x32 - Reserved */ + .long _ex_trap_c /* 0x33 - Reserved */ + .long _ex_trap_c /* 0x34 - Reserved */ + .long _ex_trap_c /* 0x35 - Reserved */ + .long _ex_trap_c /* 0x36 - Reserved */ + .long _ex_trap_c /* 0x37 - Reserved */ + .long _ex_trap_c /* 0x38 - Reserved */ + .long _ex_trap_c /* 0x39 - Reserved */ + .long _ex_trap_c /* 0x3A - Reserved */ + .long _ex_trap_c /* 0x3B - Reserved */ + .long _ex_trap_c /* 0x3C - Reserved */ + .long _ex_trap_c /* 0x3D - Reserved */ + .long _ex_trap_c /* 0x3E - Reserved */ + .long _ex_trap_c /* 0x3F - Reserved */ + +ALIGN +ENTRY(_sys_call_table) + .long _sys_ni_syscall /* 0 - old "setup()" system call*/ + .long _sys_exit + .long _sys_fork + .long _sys_read + .long _sys_write + .long _sys_open /* 5 */ + .long _sys_close + .long _sys_ni_syscall /* old waitpid */ + .long _sys_creat + .long _sys_link + .long _sys_unlink /* 10 */ + .long _sys_execve + .long _sys_chdir + .long _sys_time + .long _sys_mknod + .long _sys_chmod /* 15 */ + .long _sys_chown /* chown16 */ + .long _sys_ni_syscall /* old break syscall holder */ + .long _sys_ni_syscall /* old stat */ + .long _sys_lseek + .long _sys_getpid /* 20 */ + .long _sys_mount + .long _sys_ni_syscall /* old umount */ + .long _sys_setuid + .long _sys_getuid + .long _sys_stime /* 25 */ + .long _sys_ptrace + .long _sys_alarm + .long _sys_ni_syscall /* old fstat */ + .long _sys_pause + .long _sys_ni_syscall /* old utime */ /* 30 */ + .long _sys_ni_syscall /* old stty syscall holder */ + .long _sys_ni_syscall /* old gtty syscall holder */ + .long _sys_access + .long _sys_nice + .long _sys_ni_syscall /* 35 */ /* old ftime syscall holder */ + .long _sys_sync + .long _sys_kill + .long _sys_rename + .long _sys_mkdir + .long _sys_rmdir /* 40 */ + .long _sys_dup + .long _sys_pipe + .long _sys_times + .long _sys_ni_syscall /* old prof syscall holder */ + .long _sys_brk /* 45 */ + .long _sys_setgid + .long _sys_getgid + .long _sys_ni_syscall /* old sys_signal */ + .long _sys_geteuid /* geteuid16 */ + .long _sys_getegid /* getegid16 */ /* 50 */ + .long _sys_acct + .long _sys_umount /* recycled never used phys() */ + .long _sys_ni_syscall /* old lock syscall holder */ + .long _sys_ioctl + .long _sys_fcntl /* 55 */ + .long _sys_ni_syscall /* old mpx syscall holder */ + .long _sys_setpgid + .long _sys_ni_syscall /* old ulimit syscall holder */ + .long _sys_ni_syscall /* old old uname */ + .long _sys_umask /* 60 */ + .long _sys_chroot + .long _sys_ustat + .long _sys_dup2 + .long _sys_getppid + .long _sys_getpgrp /* 65 */ + .long _sys_setsid + .long _sys_ni_syscall /* old sys_sigaction */ + .long _sys_sgetmask + .long _sys_ssetmask + .long _sys_setreuid /* setreuid16 */ /* 70 */ + .long _sys_setregid /* setregid16 */ + .long _sys_ni_syscall /* old sys_sigsuspend */ + .long _sys_ni_syscall /* old sys_sigpending */ + .long _sys_sethostname + .long _sys_setrlimit /* 75 */ + .long _sys_ni_syscall /* old getrlimit */ + .long _sys_getrusage + .long _sys_gettimeofday + .long _sys_settimeofday + .long _sys_getgroups /* getgroups16 */ /* 80 */ + .long _sys_setgroups /* setgroups16 */ + .long _sys_ni_syscall /* old_select */ + .long _sys_symlink + .long _sys_ni_syscall /* old lstat */ + .long _sys_readlink /* 85 */ + .long _sys_uselib + .long _sys_ni_syscall /* sys_swapon */ + .long _sys_reboot + .long _sys_ni_syscall /* old_readdir */ + .long _sys_ni_syscall /* sys_mmap */ /* 90 */ + .long _sys_munmap + .long _sys_truncate + .long _sys_ftruncate + .long _sys_fchmod + .long _sys_fchown /* fchown16 */ /* 95 */ + .long _sys_getpriority + .long _sys_setpriority + .long _sys_ni_syscall /* old profil syscall holder */ + .long _sys_statfs + .long _sys_fstatfs /* 100 */ + .long _sys_ni_syscall + .long _sys_ni_syscall /* old sys_socketcall */ + .long _sys_syslog + .long _sys_setitimer + .long _sys_getitimer /* 105 */ + .long _sys_newstat + .long _sys_newlstat + .long _sys_newfstat + .long _sys_ni_syscall /* old uname */ + .long _sys_ni_syscall /* iopl for i386 */ /* 110 */ + .long _sys_vhangup + .long _sys_ni_syscall /* obsolete idle() syscall */ + .long _sys_ni_syscall /* vm86old for i386 */ + .long _sys_wait4 + .long _sys_ni_syscall /* 115 */ /* sys_swapoff */ + .long _sys_sysinfo + .long _sys_ni_syscall /* old sys_ipc */ + .long _sys_fsync + .long _sys_ni_syscall /* old sys_sigreturn */ + .long _sys_clone /* 120 */ + .long _sys_setdomainname + .long _sys_newuname + .long _sys_ni_syscall /* old sys_modify_ldt */ + .long _sys_adjtimex + .long _sys_ni_syscall /* 125 */ /* sys_mprotect */ + .long _sys_ni_syscall /* old sys_sigprocmask */ + .long _sys_ni_syscall /* old "creat_module" */ + .long _sys_init_module + .long _sys_delete_module + .long _sys_ni_syscall /* 130: old "get_kernel_syms" */ + .long _sys_quotactl + .long _sys_getpgid + .long _sys_fchdir + .long _sys_bdflush + .long _sys_ni_syscall /* 135 */ /* sys_sysfs */ + .long _sys_personality + .long _sys_ni_syscall /* for afs_syscall */ + .long _sys_setfsuid /* setfsuid16 */ + .long _sys_setfsgid /* setfsgid16 */ + .long _sys_llseek /* 140 */ + .long _sys_getdents + .long _sys_ni_syscall /* sys_select */ + .long _sys_flock + .long _sys_ni_syscall /* sys_msync */ + .long _sys_readv /* 145 */ + .long _sys_writev + .long _sys_getsid + .long _sys_fdatasync + .long _sys_sysctl + .long _sys_ni_syscall /* 150 */ /* sys_mlock */ + .long _sys_ni_syscall /* sys_munlock */ + .long _sys_ni_syscall /* sys_mlockall */ + .long _sys_ni_syscall /* sys_munlockall */ + .long _sys_sched_setparam + .long _sys_sched_getparam /* 155 */ + .long _sys_sched_setscheduler + .long _sys_sched_getscheduler + .long _sys_sched_yield + .long _sys_sched_get_priority_max + .long _sys_sched_get_priority_min /* 160 */ + .long _sys_sched_rr_get_interval + .long _sys_nanosleep + .long _sys_ni_syscall /* sys_mremap */ + .long _sys_setresuid /* setresuid16 */ + .long _sys_getresuid /* getresuid16 */ /* 165 */ + .long _sys_ni_syscall /* for vm86 */ + .long _sys_ni_syscall /* old "query_module" */ + .long _sys_ni_syscall /* sys_poll */ + .long _sys_ni_syscall /* sys_nfsservctl */ + .long _sys_setresgid /* setresgid16 */ /* 170 */ + .long _sys_getresgid /* getresgid16 */ + .long _sys_prctl + .long _sys_rt_sigreturn + .long _sys_rt_sigaction + .long _sys_rt_sigprocmask /* 175 */ + .long _sys_rt_sigpending + .long _sys_rt_sigtimedwait + .long _sys_rt_sigqueueinfo + .long _sys_rt_sigsuspend + .long _sys_pread64 /* 180 */ + .long _sys_pwrite64 + .long _sys_lchown /* lchown16 */ + .long _sys_getcwd + .long _sys_capget + .long _sys_capset /* 185 */ + .long _sys_sigaltstack + .long _sys_sendfile + .long _sys_ni_syscall /* streams1 */ + .long _sys_ni_syscall /* streams2 */ + .long _sys_vfork /* 190 */ + .long _sys_getrlimit + .long _sys_mmap2 + .long _sys_truncate64 + .long _sys_ftruncate64 + .long _sys_stat64 /* 195 */ + .long _sys_lstat64 + .long _sys_fstat64 + .long _sys_chown + .long _sys_getuid + .long _sys_getgid /* 200 */ + .long _sys_geteuid + .long _sys_getegid + .long _sys_setreuid + .long _sys_setregid + .long _sys_getgroups /* 205 */ + .long _sys_setgroups + .long _sys_fchown + .long _sys_setresuid + .long _sys_getresuid + .long _sys_setresgid /* 210 */ + .long _sys_getresgid + .long _sys_lchown + .long _sys_setuid + .long _sys_setgid + .long _sys_setfsuid /* 215 */ + .long _sys_setfsgid + .long _sys_pivot_root + .long _sys_ni_syscall /* sys_mincore */ + .long _sys_ni_syscall /* sys_madvise */ + .long _sys_getdents64 /* 220 */ + .long _sys_fcntl64 + .long _sys_ni_syscall /* reserved for TUX */ + .long _sys_ni_syscall + .long _sys_gettid + .long _sys_ni_syscall /* 225 */ /* sys_readahead */ + .long _sys_setxattr + .long _sys_lsetxattr + .long _sys_fsetxattr + .long _sys_getxattr + .long _sys_lgetxattr /* 230 */ + .long _sys_fgetxattr + .long _sys_listxattr + .long _sys_llistxattr + .long _sys_flistxattr + .long _sys_removexattr /* 235 */ + .long _sys_lremovexattr + .long _sys_fremovexattr + .long _sys_tkill + .long _sys_sendfile64 + .long _sys_futex /* 240 */ + .long _sys_sched_setaffinity + .long _sys_sched_getaffinity + .long _sys_ni_syscall /* sys_set_thread_area */ + .long _sys_ni_syscall /* sys_get_thread_area */ + .long _sys_io_setup /* 245 */ + .long _sys_io_destroy + .long _sys_io_getevents + .long _sys_io_submit + .long _sys_io_cancel + .long _sys_ni_syscall /* 250 */ /* sys_alloc_hugepages */ + .long _sys_ni_syscall /* sys_freec_hugepages */ + .long _sys_exit_group + .long _sys_lookup_dcookie + .long _sys_bfin_spinlock + .long _sys_epoll_create /* 255 */ + .long _sys_epoll_ctl + .long _sys_epoll_wait + .long _sys_ni_syscall /* remap_file_pages */ + .long _sys_set_tid_address + .long _sys_timer_create /* 260 */ + .long _sys_timer_settime + .long _sys_timer_gettime + .long _sys_timer_getoverrun + .long _sys_timer_delete + .long _sys_clock_settime /* 265 */ + .long _sys_clock_gettime + .long _sys_clock_getres + .long _sys_clock_nanosleep + .long _sys_statfs64 + .long _sys_fstatfs64 /* 270 */ + .long _sys_tgkill + .long _sys_utimes + .long _sys_fadvise64_64 + .long _sys_ni_syscall /* vserver */ + .long _sys_ni_syscall /* 275, mbind */ + .long _sys_ni_syscall /* get_mempolicy */ + .long _sys_ni_syscall /* set_mempolicy */ + .long _sys_mq_open + .long _sys_mq_unlink + .long _sys_mq_timedsend /* 280 */ + .long _sys_mq_timedreceive + .long _sys_mq_notify + .long _sys_mq_getsetattr + .long _sys_ni_syscall /* kexec_load */ + .long _sys_waitid /* 285 */ + .long _sys_add_key + .long _sys_request_key + .long _sys_keyctl + .long _sys_ioprio_set + .long _sys_ioprio_get /* 290 */ + .long _sys_inotify_init + .long _sys_inotify_add_watch + .long _sys_inotify_rm_watch + .long _sys_ni_syscall /* migrate_pages */ + .long _sys_openat /* 295 */ + .long _sys_mkdirat + .long _sys_mknodat + .long _sys_fchownat + .long _sys_futimesat + .long _sys_fstatat64 /* 300 */ + .long _sys_unlinkat + .long _sys_renameat + .long _sys_linkat + .long _sys_symlinkat + .long _sys_readlinkat /* 305 */ + .long _sys_fchmodat + .long _sys_faccessat + .long _sys_pselect6 + .long _sys_ppoll + .long _sys_unshare /* 310 */ + .long _sys_sram_alloc + .long _sys_sram_free + .long _sys_dma_memcpy + .long _sys_accept + .long _sys_bind /* 315 */ + .long _sys_connect + .long _sys_getpeername + .long _sys_getsockname + .long _sys_getsockopt + .long _sys_listen /* 320 */ + .long _sys_recv + .long _sys_recvfrom + .long _sys_recvmsg + .long _sys_send + .long _sys_sendmsg /* 325 */ + .long _sys_sendto + .long _sys_setsockopt + .long _sys_shutdown + .long _sys_socket + .long _sys_socketpair /* 330 */ + .long _sys_semctl + .long _sys_semget + .long _sys_semop + .long _sys_msgctl + .long _sys_msgget /* 335 */ + .long _sys_msgrcv + .long _sys_msgsnd + .long _sys_shmat + .long _sys_shmctl + .long _sys_shmdt /* 340 */ + .long _sys_shmget + .rept NR_syscalls-(.-_sys_call_table)/4 + .long _sys_ni_syscall + .endr +_excpt_saved_imask: + .long 0; + +_exception_stack: + .rept 1024 + .long 0; + .endr +_exception_stack_top: + +#if defined(ANOMALY_05000261) +/* Used by the assembly entry point to work around an anomaly. */ +_last_cplb_fault_retx: + .long 0; +#endif +/* + * Single instructions can have multiple faults, which need to be + * handled by traps.c, in irq5. We store the exception cause to ensure + * we don't miss a double fault condition + */ +ENTRY(_in_ptr_excause) + .long 0; +ENTRY(_out_ptr_excause) + .long 0; +ALIGN +ENTRY(_excause_circ_buf) + .rept 4 + .long 0 + .endr diff --git a/arch/blackfin/mach-common/interrupt.S b/arch/blackfin/mach-common/interrupt.S new file mode 100644 index 0000000..dd45664 --- /dev/null +++ b/arch/blackfin/mach-common/interrupt.S @@ -0,0 +1,253 @@ +/* + * File: arch/blackfin/mach-common/interrupt.S + * Based on: + * Author: D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca> + * Kenneth Albanowski <kjahds@kjahds.com> + * + * Created: ? + * Description: Interrupt Entries + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <asm/blackfin.h> +#include <asm/mach/irq.h> +#include <linux/autoconf.h> +#include <linux/linkage.h> +#include <asm/entry.h> +#include <asm/asm-offsets.h> + +#include <asm/mach-common/context.S> + +#ifdef CONFIG_I_ENTRY_L1 +.section .l1.text +#else +.text +#endif + +.align 4 /* just in case */ + +/* + * initial interrupt handlers + */ + +#ifndef CONFIG_KGDB + /* interrupt routine for emulation - 0 */ + /* Currently used only if GDB stub is not in - invalid */ + /* gdb-stub set the evt itself */ + /* save registers for post-mortem only */ +ENTRY(_evt_emulation) + SAVE_ALL_SYS +#ifdef CONFIG_FRAME_POINTER + fp = 0; +#endif + r0 = IRQ_EMU; + r1 = sp; + SP += -12; + call _irq_panic; + SP += 12; + /* - GDB stub fills this in by itself (if defined) */ + rte; +#endif + +/* Common interrupt entry code. First we do CLI, then push + * RETI, to keep interrupts disabled, but to allow this state to be changed + * by local_bh_enable. + * R0 contains the interrupt number, while R1 may contain the value of IPEND, + * or garbage if IPEND won't be needed by the ISR. */ +__common_int_entry: + [--sp] = fp; + [--sp] = usp; + + [--sp] = i0; + [--sp] = i1; + [--sp] = i2; + [--sp] = i3; + + [--sp] = m0; + [--sp] = m1; + [--sp] = m2; + [--sp] = m3; + + [--sp] = l0; + [--sp] = l1; + [--sp] = l2; + [--sp] = l3; + + [--sp] = b0; + [--sp] = b1; + [--sp] = b2; + [--sp] = b3; + [--sp] = a0.x; + [--sp] = a0.w; + [--sp] = a1.x; + [--sp] = a1.w; + + [--sp] = LC0; + [--sp] = LC1; + [--sp] = LT0; + [--sp] = LT1; + [--sp] = LB0; + [--sp] = LB1; + + [--sp] = ASTAT; + + [--sp] = r0; /* Skip reserved */ + [--sp] = RETS; + r2 = RETI; + [--sp] = r2; + [--sp] = RETX; + [--sp] = RETN; + [--sp] = RETE; + [--sp] = SEQSTAT; + [--sp] = r1; /* IPEND - R1 may or may not be set up before jumping here. */ + + /* Switch to other method of keeping interrupts disabled. */ +#ifdef CONFIG_DEBUG_HWERR + r1 = 0x3f; + sti r1; +#else + cli r1; +#endif + [--sp] = RETI; /* orig_pc */ + /* Clear all L registers. */ + r1 = 0 (x); + l0 = r1; + l1 = r1; + l2 = r1; + l3 = r1; +#ifdef CONFIG_FRAME_POINTER + fp = 0; +#endif + +#ifdef ANOMALY_05000283 + cc = r7 == r7; + p5.h = 0xffc0; + p5.l = 0x0014; + if cc jump 1f; + r7.l = W[p5]; +1: +#endif + r1 = sp; + SP += -12; + call _do_irq; + SP += 12; + call _return_from_int; +.Lcommon_restore_context: + RESTORE_CONTEXT + rti; + +/* interrupt routine for ivhw - 5 */ +ENTRY(_evt_ivhw) + SAVE_CONTEXT +#ifdef CONFIG_FRAME_POINTER + fp = 0; +#endif +#ifdef ANOMALY_05000283 + cc = r7 == r7; + p5.h = 0xffc0; + p5.l = 0x0014; + if cc jump 1f; + r7.l = W[p5]; +1: +#endif + p0.l = lo(TBUFCTL); + p0.h = hi(TBUFCTL); + r0 = 1; + [p0] = r0; + r0 = IRQ_HWERR; + r1 = sp; + +#ifdef CONFIG_HARDWARE_PM + r7 = SEQSTAT; + r7 = r7 >>> 0xe; + r6 = 0x1F; + r7 = r7 & r6; + r5 = 0x12; + cc = r7 == r5; + if cc jump .Lcall_do_ovf; /* deal with performance counter overflow */ +#endif + + SP += -12; + call _irq_panic; + SP += 12; + rti; +#ifdef CONFIG_HARDWARE_PM +.Lcall_do_ovf: + + SP += -12; + call _pm_overflow; + SP += 12; + + jump .Lcommon_restore_context; +#endif + +/* interrupt routine for evt2 - 2. This is NMI. */ +ENTRY(_evt_evt2) + SAVE_CONTEXT +#ifdef CONFIG_FRAME_POINTER + fp = 0; +#endif +#ifdef ANOMALY_05000283 + cc = r7 == r7; + p5.h = 0xffc0; + p5.l = 0x0014; + if cc jump 1f; + r7.l = W[p5]; +1: +#endif + r0 = IRQ_NMI; + r1 = sp; + SP += -12; + call _asm_do_IRQ; + SP += 12; + RESTORE_CONTEXT + rtn; + +/* interrupt routine for core timer - 6 */ +ENTRY(_evt_timer) + TIMER_INTERRUPT_ENTRY(EVT_IVTMR_P) + +/* interrupt routine for evt7 - 7 */ +ENTRY(_evt_evt7) + INTERRUPT_ENTRY(EVT_IVG7_P) +ENTRY(_evt_evt8) + INTERRUPT_ENTRY(EVT_IVG8_P) +ENTRY(_evt_evt9) + INTERRUPT_ENTRY(EVT_IVG9_P) +ENTRY(_evt_evt10) + INTERRUPT_ENTRY(EVT_IVG10_P) +ENTRY(_evt_evt11) + INTERRUPT_ENTRY(EVT_IVG11_P) +ENTRY(_evt_evt12) + INTERRUPT_ENTRY(EVT_IVG12_P) +ENTRY(_evt_evt13) + INTERRUPT_ENTRY(EVT_IVG13_P) + + + /* interrupt routine for system_call - 15 */ +ENTRY(_evt_system_call) + SAVE_CONTEXT_SYSCALL +#ifdef CONFIG_FRAME_POINTER + fp = 0; +#endif + call _system_call; + jump .Lcommon_restore_context; diff --git a/arch/blackfin/mach-common/ints-priority-dc.c b/arch/blackfin/mach-common/ints-priority-dc.c new file mode 100644 index 0000000..f3cf070 --- /dev/null +++ b/arch/blackfin/mach-common/ints-priority-dc.c @@ -0,0 +1,476 @@ +/* + * File: arch/blackfin/mach-common/ints-priority-dc.c + * Based on: + * Author: + * + * Created: ? + * Description: Set up the interupt priorities + * + * Modified: + * 1996 Roman Zippel + * 1999 D. Jeff Dionne <jeff@uclinux.org> + * 2000-2001 Lineo, Inc. D. Jefff Dionne <jeff@lineo.ca> + * 2002 Arcturus Networks Inc. MaTed <mated@sympatico.ca> + * 2003 Metrowerks/Motorola + * 2003 Bas Vermeulen <bas@buyways.nl> + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/kernel_stat.h> +#include <linux/seq_file.h> +#include <linux/irq.h> +#ifdef CONFIG_KGDB +#include <linux/kgdb.h> +#endif +#include <asm/traps.h> +#include <asm/blackfin.h> +#include <asm/gpio.h> +#include <asm/irq_handler.h> + +/* + * NOTES: + * - we have separated the physical Hardware interrupt from the + * levels that the LINUX kernel sees (see the description in irq.h) + * - + */ + +unsigned long irq_flags = 0; + +/* The number of spurious interrupts */ +atomic_t num_spurious; + +struct ivgx { + /* irq number for request_irq, available in mach-bf561/irq.h */ + int irqno; + /* corresponding bit in the SICA_ISR0 register */ + int isrflag0; + /* corresponding bit in the SICA_ISR1 register */ + int isrflag1; +} ivg_table[NR_PERI_INTS]; + +struct ivg_slice { + /* position of first irq in ivg_table for given ivg */ + struct ivgx *ifirst; + struct ivgx *istop; +} ivg7_13[IVG13 - IVG7 + 1]; + +static void search_IAR(void); + +/* + * Search SIC_IAR and fill tables with the irqvalues + * and their positions in the SIC_ISR register. + */ +static void __init search_IAR(void) +{ + unsigned ivg, irq_pos = 0; + for (ivg = 0; ivg <= IVG13 - IVG7; ivg++) { + int irqn; + + ivg7_13[ivg].istop = ivg7_13[ivg].ifirst = &ivg_table[irq_pos]; + + for (irqn = 0; irqn < NR_PERI_INTS; irqn++) { + int iar_shift = (irqn & 7) * 4; + if (ivg == + (0xf & + bfin_read32((unsigned long *)SICA_IAR0 + + (irqn >> 3)) >> iar_shift)) { + ivg_table[irq_pos].irqno = IVG7 + irqn; + ivg_table[irq_pos].isrflag0 = + (irqn < 32 ? (1 << irqn) : 0); + ivg_table[irq_pos].isrflag1 = + (irqn < 32 ? 0 : (1 << (irqn - 32))); + ivg7_13[ivg].istop++; + irq_pos++; + } + } + } +} + +/* + * This is for BF561 internal IRQs + */ + +static void ack_noop(unsigned int irq) +{ + /* Dummy function. */ +} + +static void bf561_core_mask_irq(unsigned int irq) +{ + irq_flags &= ~(1 << irq); + if (!irqs_disabled()) + local_irq_enable(); +} + +static void bf561_core_unmask_irq(unsigned int irq) +{ + irq_flags |= 1 << irq; + /* + * If interrupts are enabled, IMASK must contain the same value + * as irq_flags. Make sure that invariant holds. If interrupts + * are currently disabled we need not do anything; one of the + * callers will take care of setting IMASK to the proper value + * when reenabling interrupts. + * local_irq_enable just does "STI irq_flags", so it's exactly + * what we need. + */ + if (!irqs_disabled()) + local_irq_enable(); + return; +} + +static void bf561_internal_mask_irq(unsigned int irq) +{ + unsigned long irq_mask; + if ((irq - (IRQ_CORETMR + 1)) < 32) { + irq_mask = (1 << (irq - (IRQ_CORETMR + 1))); + bfin_write_SICA_IMASK0(bfin_read_SICA_IMASK0() & ~irq_mask); + } else { + irq_mask = (1 << (irq - (IRQ_CORETMR + 1) - 32)); + bfin_write_SICA_IMASK1(bfin_read_SICA_IMASK1() & ~irq_mask); + } +} + +static void bf561_internal_unmask_irq(unsigned int irq) +{ + unsigned long irq_mask; + + if ((irq - (IRQ_CORETMR + 1)) < 32) { + irq_mask = (1 << (irq - (IRQ_CORETMR + 1))); + bfin_write_SICA_IMASK0(bfin_read_SICA_IMASK0() | irq_mask); + } else { + irq_mask = (1 << (irq - (IRQ_CORETMR + 1) - 32)); + bfin_write_SICA_IMASK1(bfin_read_SICA_IMASK1() | irq_mask); + } + SSYNC(); +} + +static struct irq_chip bf561_core_irqchip = { + .ack = ack_noop, + .mask = bf561_core_mask_irq, + .unmask = bf561_core_unmask_irq, +}; + +static struct irq_chip bf561_internal_irqchip = { + .ack = ack_noop, + .mask = bf561_internal_mask_irq, + .unmask = bf561_internal_unmask_irq, +}; + +#ifdef CONFIG_IRQCHIP_DEMUX_GPIO +static unsigned short gpio_enabled[gpio_bank(MAX_BLACKFIN_GPIOS)]; +static unsigned short gpio_edge_triggered[gpio_bank(MAX_BLACKFIN_GPIOS)]; + +static void bf561_gpio_ack_irq(unsigned int irq) +{ + u16 gpionr = irq - IRQ_PF0; + + if(gpio_edge_triggered[gpio_bank(gpionr)] & gpio_bit(gpionr)) { + set_gpio_data(gpionr, 0); + SSYNC(); + } +} + +static void bf561_gpio_mask_ack_irq(unsigned int irq) +{ + u16 gpionr = irq - IRQ_PF0; + + if(gpio_edge_triggered[gpio_bank(gpionr)] & gpio_bit(gpionr)) { + set_gpio_data(gpionr, 0); + SSYNC(); + } + + set_gpio_maska(gpionr, 0); + SSYNC(); +} + +static void bf561_gpio_mask_irq(unsigned int irq) +{ + set_gpio_maska(irq - IRQ_PF0, 0); + SSYNC(); +} + +static void bf561_gpio_unmask_irq(unsigned int irq) +{ + set_gpio_maska(irq - IRQ_PF0, 1); + SSYNC(); +} + +static unsigned int bf561_gpio_irq_startup(unsigned int irq) +{ + unsigned int ret; + u16 gpionr = irq - IRQ_PF0; + + if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { + + ret = gpio_request(gpionr, NULL); + if(ret) + return ret; + + } + + gpio_enabled[gpio_bank(gpionr)] |= gpio_bit(gpionr); + bf561_gpio_unmask_irq(irq); + + return ret; + +} + +static void bf561_gpio_irq_shutdown(unsigned int irq) +{ + bf561_gpio_mask_irq(irq); + gpio_free(irq - IRQ_PF0); + gpio_enabled[gpio_bank(irq - IRQ_PF0)] &= ~gpio_bit(irq - IRQ_PF0); +} + +static int bf561_gpio_irq_type(unsigned int irq, unsigned int type) +{ + + unsigned int ret; + u16 gpionr = irq - IRQ_PF0; + + + if (type == IRQ_TYPE_PROBE) { + /* only probe unenabled GPIO interrupt lines */ + if (gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr)) + return 0; + type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING; + + } + + if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING | + IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) { + + if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { + + ret = gpio_request(gpionr, NULL); + if(ret) + return ret; + + } + + gpio_enabled[gpio_bank(gpionr)] |= gpio_bit(gpionr); + } else { + gpio_enabled[gpio_bank(gpionr)] &= ~gpio_bit(gpionr); + return 0; + } + + + set_gpio_dir(gpionr, 0); + set_gpio_inen(gpionr, 1); + + + if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) { + gpio_edge_triggered[gpio_bank(gpionr)] |= gpio_bit(gpionr); + set_gpio_edge(gpionr, 1); + } else { + set_gpio_edge(gpionr, 0); + gpio_edge_triggered[gpio_bank(gpionr)] &= ~gpio_bit(gpionr); + } + + if ((type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) + == (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) + set_gpio_both(gpionr, 1); + else + set_gpio_both(gpionr, 0); + + if ((type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_LOW))) + set_gpio_polar(gpionr, 1); /* low or falling edge denoted by one */ + else + set_gpio_polar(gpionr, 0); /* high or rising edge denoted by zero */ + + SSYNC(); + + if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) + set_irq_handler(irq, handle_edge_irq); + else + set_irq_handler(irq, handle_level_irq); + + return 0; +} + +static struct irq_chip bf561_gpio_irqchip = { + .ack = bf561_gpio_ack_irq, + .mask = bf561_gpio_mask_irq, + .mask_ack = bf561_gpio_mask_ack_irq, + .unmask = bf561_gpio_unmask_irq, + .set_type = bf561_gpio_irq_type, + .startup = bf561_gpio_irq_startup, + .shutdown = bf561_gpio_irq_shutdown +}; + +static void bf561_demux_gpio_irq(unsigned int inta_irq, + struct irq_desc *intb_desc) +{ + int irq, flag_d, mask; + u16 gpio; + + switch (inta_irq) { + case IRQ_PROG0_INTA: + irq = IRQ_PF0; + break; + case IRQ_PROG1_INTA: + irq = IRQ_PF16; + break; + case IRQ_PROG2_INTA: + irq = IRQ_PF32; + break; + default: + dump_stack(); + return; + } + + gpio = irq - IRQ_PF0; + + flag_d = get_gpiop_data(gpio); + mask = flag_d & (gpio_enabled[gpio_bank(gpio)] & + get_gpiop_maska(gpio)); + + do { + if (mask & 1) { + struct irq_desc *desc = irq_desc + irq; + desc->handle_irq(irq, desc); + } + irq++; + mask >>= 1; + } while (mask); + + +} + +#endif /* CONFIG_IRQCHIP_DEMUX_GPIO */ + +/* + * This function should be called during kernel startup to initialize + * the BFin IRQ handling routines. + */ +int __init init_arch_irq(void) +{ + int irq; + unsigned long ilat = 0; + /* Disable all the peripheral intrs - page 4-29 HW Ref manual */ + bfin_write_SICA_IMASK0(SIC_UNMASK_ALL); + bfin_write_SICA_IMASK1(SIC_UNMASK_ALL); + SSYNC(); + + local_irq_disable(); + + init_exception_buff(); + +#ifndef CONFIG_KGDB + bfin_write_EVT0(evt_emulation); +#endif + bfin_write_EVT2(evt_evt2); + bfin_write_EVT3(trap); + bfin_write_EVT5(evt_ivhw); + bfin_write_EVT6(evt_timer); + bfin_write_EVT7(evt_evt7); + bfin_write_EVT8(evt_evt8); + bfin_write_EVT9(evt_evt9); + bfin_write_EVT10(evt_evt10); + bfin_write_EVT11(evt_evt11); + bfin_write_EVT12(evt_evt12); + bfin_write_EVT13(evt_evt13); + bfin_write_EVT14(evt14_softirq); + bfin_write_EVT15(evt_system_call); + CSYNC(); + + for (irq = 0; irq < SYS_IRQS; irq++) { + if (irq <= IRQ_CORETMR) + set_irq_chip(irq, &bf561_core_irqchip); + else + set_irq_chip(irq, &bf561_internal_irqchip); +#ifdef CONFIG_IRQCHIP_DEMUX_GPIO + if ((irq != IRQ_PROG0_INTA) && + (irq != IRQ_PROG1_INTA) && (irq != IRQ_PROG2_INTA)) { +#endif + set_irq_handler(irq, handle_simple_irq); +#ifdef CONFIG_IRQCHIP_DEMUX_GPIO + } else { + set_irq_chained_handler(irq, bf561_demux_gpio_irq); + } +#endif + + } + +#ifdef CONFIG_IRQCHIP_DEMUX_GPIO + for (irq = IRQ_PF0; irq <= IRQ_PF47; irq++) { + set_irq_chip(irq, &bf561_gpio_irqchip); + /* if configured as edge, then will be changed to do_edge_IRQ */ + set_irq_handler(irq, handle_level_irq); + } +#endif + bfin_write_IMASK(0); + CSYNC(); + ilat = bfin_read_ILAT(); + CSYNC(); + bfin_write_ILAT(ilat); + CSYNC(); + + printk(KERN_INFO "Configuring Blackfin Priority Driven Interrupts\n"); + /* IMASK=xxx is equivalent to STI xx or irq_flags=xx, + * local_irq_enable() + */ + program_IAR(); + /* Therefore it's better to setup IARs before interrupts enabled */ + search_IAR(); + + /* Enable interrupts IVG7-15 */ + irq_flags = irq_flags | IMASK_IVG15 | + IMASK_IVG14 | IMASK_IVG13 | IMASK_IVG12 | IMASK_IVG11 | + IMASK_IVG10 | IMASK_IVG9 | IMASK_IVG8 | IMASK_IVG7 | IMASK_IVGHW; + + return 0; +} + +#ifdef CONFIG_DO_IRQ_L1 +void do_irq(int vec, struct pt_regs *fp)__attribute__((l1_text)); +#endif + +void do_irq(int vec, struct pt_regs *fp) +{ + if (vec == EVT_IVTMR_P) { + vec = IRQ_CORETMR; + } else { + struct ivgx *ivg = ivg7_13[vec - IVG7].ifirst; + struct ivgx *ivg_stop = ivg7_13[vec - IVG7].istop; + unsigned long sic_status0, sic_status1; + + SSYNC(); + sic_status0 = bfin_read_SICA_IMASK0() & bfin_read_SICA_ISR0(); + sic_status1 = bfin_read_SICA_IMASK1() & bfin_read_SICA_ISR1(); + + for (;; ivg++) { + if (ivg >= ivg_stop) { + atomic_inc(&num_spurious); + return; + } else if ((sic_status0 & ivg->isrflag0) || + (sic_status1 & ivg->isrflag1)) + break; + } + vec = ivg->irqno; + } + asm_do_IRQ(vec, fp); + +#ifdef CONFIG_KGDB + kgdb_process_breakpoint(); +#endif +} diff --git a/arch/blackfin/mach-common/ints-priority-sc.c b/arch/blackfin/mach-common/ints-priority-sc.c new file mode 100644 index 0000000..34b6228 --- /dev/null +++ b/arch/blackfin/mach-common/ints-priority-sc.c @@ -0,0 +1,577 @@ +/* + * File: arch/blackfin/mach-common/ints-priority-sc.c + * Based on: + * Author: + * + * Created: ? + * Description: Set up the interupt priorities + * + * Modified: + * 1996 Roman Zippel + * 1999 D. Jeff Dionne <jeff@uclinux.org> + * 2000-2001 Lineo, Inc. D. Jefff Dionne <jeff@lineo.ca> + * 2002 Arcturus Networks Inc. MaTed <mated@sympatico.ca> + * 2003 Metrowerks/Motorola + * 2003 Bas Vermeulen <bas@buyways.nl> + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/kernel_stat.h> +#include <linux/seq_file.h> +#include <linux/irq.h> +#ifdef CONFIG_KGDB +#include <linux/kgdb.h> +#endif +#include <asm/traps.h> +#include <asm/blackfin.h> +#include <asm/gpio.h> +#include <asm/irq_handler.h> + +#ifdef BF537_FAMILY +# define BF537_GENERIC_ERROR_INT_DEMUX +#else +# undef BF537_GENERIC_ERROR_INT_DEMUX +#endif + +/* + * NOTES: + * - we have separated the physical Hardware interrupt from the + * levels that the LINUX kernel sees (see the description in irq.h) + * - + */ + +unsigned long irq_flags = 0; + +/* The number of spurious interrupts */ +atomic_t num_spurious; + +struct ivgx { + /* irq number for request_irq, available in mach-bf533/irq.h */ + int irqno; + /* corresponding bit in the SIC_ISR register */ + int isrflag; +} ivg_table[NR_PERI_INTS]; + +struct ivg_slice { + /* position of first irq in ivg_table for given ivg */ + struct ivgx *ifirst; + struct ivgx *istop; +} ivg7_13[IVG13 - IVG7 + 1]; + +static void search_IAR(void); + +/* + * Search SIC_IAR and fill tables with the irqvalues + * and their positions in the SIC_ISR register. + */ +static void __init search_IAR(void) +{ + unsigned ivg, irq_pos = 0; + for (ivg = 0; ivg <= IVG13 - IVG7; ivg++) { + int irqn; + + ivg7_13[ivg].istop = ivg7_13[ivg].ifirst = + &ivg_table[irq_pos]; + + for (irqn = 0; irqn < NR_PERI_INTS; irqn++) { + int iar_shift = (irqn & 7) * 4; + if (ivg == + (0xf & + bfin_read32((unsigned long *) SIC_IAR0 + + (irqn >> 3)) >> iar_shift)) { + ivg_table[irq_pos].irqno = IVG7 + irqn; + ivg_table[irq_pos].isrflag = 1 << irqn; + ivg7_13[ivg].istop++; + irq_pos++; + } + } + } +} + +/* + * This is for BF533 internal IRQs + */ + +static void ack_noop(unsigned int irq) +{ + /* Dummy function. */ +} + +static void bfin_core_mask_irq(unsigned int irq) +{ + irq_flags &= ~(1 << irq); + if (!irqs_disabled()) + local_irq_enable(); +} + +static void bfin_core_unmask_irq(unsigned int irq) +{ + irq_flags |= 1 << irq; + /* + * If interrupts are enabled, IMASK must contain the same value + * as irq_flags. Make sure that invariant holds. If interrupts + * are currently disabled we need not do anything; one of the + * callers will take care of setting IMASK to the proper value + * when reenabling interrupts. + * local_irq_enable just does "STI irq_flags", so it's exactly + * what we need. + */ + if (!irqs_disabled()) + local_irq_enable(); + return; +} + +static void bfin_internal_mask_irq(unsigned int irq) +{ + bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() & + ~(1 << (irq - (IRQ_CORETMR + 1)))); + SSYNC(); +} + +static void bfin_internal_unmask_irq(unsigned int irq) +{ + bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() | + (1 << (irq - (IRQ_CORETMR + 1)))); + SSYNC(); +} + +static struct irq_chip bfin_core_irqchip = { + .ack = ack_noop, + .mask = bfin_core_mask_irq, + .unmask = bfin_core_unmask_irq, +}; + +static struct irq_chip bfin_internal_irqchip = { + .ack = ack_noop, + .mask = bfin_internal_mask_irq, + .unmask = bfin_internal_unmask_irq, +}; + +#ifdef BF537_GENERIC_ERROR_INT_DEMUX +static int error_int_mask; + +static void bfin_generic_error_ack_irq(unsigned int irq) +{ + +} + +static void bfin_generic_error_mask_irq(unsigned int irq) +{ + error_int_mask &= ~(1L << (irq - IRQ_PPI_ERROR)); + + if (!error_int_mask) { + local_irq_disable(); + bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() & + ~(1 << + (IRQ_GENERIC_ERROR - + (IRQ_CORETMR + 1)))); + SSYNC(); + local_irq_enable(); + } +} + +static void bfin_generic_error_unmask_irq(unsigned int irq) +{ + local_irq_disable(); + bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() | 1 << + (IRQ_GENERIC_ERROR - (IRQ_CORETMR + 1))); + SSYNC(); + local_irq_enable(); + + error_int_mask |= 1L << (irq - IRQ_PPI_ERROR); +} + +static struct irq_chip bfin_generic_error_irqchip = { + .ack = bfin_generic_error_ack_irq, + .mask = bfin_generic_error_mask_irq, + .unmask = bfin_generic_error_unmask_irq, +}; + +static void bfin_demux_error_irq(unsigned int int_err_irq, + struct irq_desc *intb_desc) +{ + int irq = 0; + + SSYNC(); + +#if (defined(CONFIG_BF537) || defined(CONFIG_BF536)) + if (bfin_read_EMAC_SYSTAT() & EMAC_ERR_MASK) + irq = IRQ_MAC_ERROR; + else +#endif + if (bfin_read_SPORT0_STAT() & SPORT_ERR_MASK) + irq = IRQ_SPORT0_ERROR; + else if (bfin_read_SPORT1_STAT() & SPORT_ERR_MASK) + irq = IRQ_SPORT1_ERROR; + else if (bfin_read_PPI_STATUS() & PPI_ERR_MASK) + irq = IRQ_PPI_ERROR; + else if (bfin_read_CAN_GIF() & CAN_ERR_MASK) + irq = IRQ_CAN_ERROR; + else if (bfin_read_SPI_STAT() & SPI_ERR_MASK) + irq = IRQ_SPI_ERROR; + else if ((bfin_read_UART0_IIR() & UART_ERR_MASK_STAT1) && + (bfin_read_UART0_IIR() & UART_ERR_MASK_STAT0)) + irq = IRQ_UART0_ERROR; + else if ((bfin_read_UART1_IIR() & UART_ERR_MASK_STAT1) && + (bfin_read_UART1_IIR() & UART_ERR_MASK_STAT0)) + irq = IRQ_UART1_ERROR; + + if (irq) { + if (error_int_mask & (1L << (irq - IRQ_PPI_ERROR))) { + struct irq_desc *desc = irq_desc + irq; + desc->handle_irq(irq, desc); + } else { + + switch (irq) { + case IRQ_PPI_ERROR: + bfin_write_PPI_STATUS(PPI_ERR_MASK); + break; +#if (defined(CONFIG_BF537) || defined(CONFIG_BF536)) + case IRQ_MAC_ERROR: + bfin_write_EMAC_SYSTAT(EMAC_ERR_MASK); + break; +#endif + case IRQ_SPORT0_ERROR: + bfin_write_SPORT0_STAT(SPORT_ERR_MASK); + break; + + case IRQ_SPORT1_ERROR: + bfin_write_SPORT1_STAT(SPORT_ERR_MASK); + break; + + case IRQ_CAN_ERROR: + bfin_write_CAN_GIS(CAN_ERR_MASK); + break; + + case IRQ_SPI_ERROR: + bfin_write_SPI_STAT(SPI_ERR_MASK); + break; + + default: + break; + } + + pr_debug("IRQ %d:" + " MASKED PERIPHERAL ERROR INTERRUPT ASSERTED\n", + irq); + } + } else + printk(KERN_ERR + "%s : %s : LINE %d :\nIRQ ?: PERIPHERAL ERROR" + " INTERRUPT ASSERTED BUT NO SOURCE FOUND\n", + __FUNCTION__, __FILE__, __LINE__); + + +} +#endif /* BF537_GENERIC_ERROR_INT_DEMUX */ + +#ifdef CONFIG_IRQCHIP_DEMUX_GPIO + +static unsigned short gpio_enabled[gpio_bank(MAX_BLACKFIN_GPIOS)]; +static unsigned short gpio_edge_triggered[gpio_bank(MAX_BLACKFIN_GPIOS)]; + +static void bfin_gpio_ack_irq(unsigned int irq) +{ + u16 gpionr = irq - IRQ_PF0; + + if (gpio_edge_triggered[gpio_bank(gpionr)] & gpio_bit(gpionr)) { + set_gpio_data(gpionr, 0); + SSYNC(); + } +} + +static void bfin_gpio_mask_ack_irq(unsigned int irq) +{ + u16 gpionr = irq - IRQ_PF0; + + if (gpio_edge_triggered[gpio_bank(gpionr)] & gpio_bit(gpionr)) { + set_gpio_data(gpionr, 0); + SSYNC(); + } + + set_gpio_maska(gpionr, 0); + SSYNC(); +} + +static void bfin_gpio_mask_irq(unsigned int irq) +{ + set_gpio_maska(irq - IRQ_PF0, 0); + SSYNC(); +} + +static void bfin_gpio_unmask_irq(unsigned int irq) +{ + set_gpio_maska(irq - IRQ_PF0, 1); + SSYNC(); +} + +static unsigned int bfin_gpio_irq_startup(unsigned int irq) +{ + unsigned int ret; + u16 gpionr = irq - IRQ_PF0; + + if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { + ret = gpio_request(gpionr, NULL); + if (ret) + return ret; + } + + gpio_enabled[gpio_bank(gpionr)] |= gpio_bit(gpionr); + bfin_gpio_unmask_irq(irq); + + return ret; +} + +static void bfin_gpio_irq_shutdown(unsigned int irq) +{ + bfin_gpio_mask_irq(irq); + gpio_free(irq - IRQ_PF0); + gpio_enabled[gpio_bank(irq - IRQ_PF0)] &= ~gpio_bit(irq - IRQ_PF0); +} + +static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) +{ + + unsigned int ret; + u16 gpionr = irq - IRQ_PF0; + + if (type == IRQ_TYPE_PROBE) { + /* only probe unenabled GPIO interrupt lines */ + if (gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr)) + return 0; + type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING; + } + + if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING | + IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) + { + if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { + ret = gpio_request(gpionr, NULL); + if (ret) + return ret; + } + + gpio_enabled[gpio_bank(gpionr)] |= gpio_bit(gpionr); + } else { + gpio_enabled[gpio_bank(gpionr)] &= ~gpio_bit(gpionr); + return 0; + } + + set_gpio_dir(gpionr, 0); + set_gpio_inen(gpionr, 1); + + if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) { + gpio_edge_triggered[gpio_bank(gpionr)] |= gpio_bit(gpionr); + set_gpio_edge(gpionr, 1); + } else { + set_gpio_edge(gpionr, 0); + gpio_edge_triggered[gpio_bank(gpionr)] &= ~gpio_bit(gpionr); + } + + if ((type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) + == (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) + set_gpio_both(gpionr, 1); + else + set_gpio_both(gpionr, 0); + + if ((type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_LOW))) + set_gpio_polar(gpionr, 1); /* low or falling edge denoted by one */ + else + set_gpio_polar(gpionr, 0); /* high or rising edge denoted by zero */ + + SSYNC(); + + if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) + set_irq_handler(irq, handle_edge_irq); + else + set_irq_handler(irq, handle_level_irq); + + return 0; +} + + +static struct irq_chip bfin_gpio_irqchip = { + .ack = bfin_gpio_ack_irq, + .mask = bfin_gpio_mask_irq, + .mask_ack = bfin_gpio_mask_ack_irq, + .unmask = bfin_gpio_unmask_irq, + .set_type = bfin_gpio_irq_type, + .startup = bfin_gpio_irq_startup, + .shutdown = bfin_gpio_irq_shutdown +}; + +static void bfin_demux_gpio_irq(unsigned int intb_irq, + struct irq_desc *intb_desc) +{ + u16 i; + + for (i = 0; i < MAX_BLACKFIN_GPIOS; i+=16) { + int irq = IRQ_PF0 + i; + int flag_d = get_gpiop_data(i); + int mask = + flag_d & (gpio_enabled[gpio_bank(i)] & + get_gpiop_maska(i)); + + while (mask) { + if (mask & 1) { + struct irq_desc *desc = irq_desc + irq; + desc->handle_irq(irq, desc); + } + irq++; + mask >>= 1; + } + } +} + +#endif /* CONFIG_IRQCHIP_DEMUX_GPIO */ + +/* + * This function should be called during kernel startup to initialize + * the BFin IRQ handling routines. + */ +int __init init_arch_irq(void) +{ + int irq; + unsigned long ilat = 0; + /* Disable all the peripheral intrs - page 4-29 HW Ref manual */ + bfin_write_SIC_IMASK(SIC_UNMASK_ALL); + SSYNC(); + + local_irq_disable(); + +#ifndef CONFIG_KGDB + bfin_write_EVT0(evt_emulation); +#endif + bfin_write_EVT2(evt_evt2); + bfin_write_EVT3(trap); + bfin_write_EVT5(evt_ivhw); + bfin_write_EVT6(evt_timer); + bfin_write_EVT7(evt_evt7); + bfin_write_EVT8(evt_evt8); + bfin_write_EVT9(evt_evt9); + bfin_write_EVT10(evt_evt10); + bfin_write_EVT11(evt_evt11); + bfin_write_EVT12(evt_evt12); + bfin_write_EVT13(evt_evt13); + bfin_write_EVT14(evt14_softirq); + bfin_write_EVT15(evt_system_call); + CSYNC(); + + for (irq = 0; irq < SYS_IRQS; irq++) { + if (irq <= IRQ_CORETMR) + set_irq_chip(irq, &bfin_core_irqchip); + else + set_irq_chip(irq, &bfin_internal_irqchip); +#ifdef BF537_GENERIC_ERROR_INT_DEMUX + if (irq != IRQ_GENERIC_ERROR) { +#endif + +#ifdef CONFIG_IRQCHIP_DEMUX_GPIO + if ((irq != IRQ_PROG_INTA) /*PORT F & G MASK_A Interrupt*/ +# if defined(BF537_FAMILY) && !(defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)) + && (irq != IRQ_MAC_RX) /*PORT H MASK_A Interrupt*/ +# endif + ) { +#endif + set_irq_handler(irq, handle_simple_irq); +#ifdef CONFIG_IRQCHIP_DEMUX_GPIO + } else { + set_irq_chained_handler(irq, + bfin_demux_gpio_irq); + } +#endif + +#ifdef BF537_GENERIC_ERROR_INT_DEMUX + } else { + set_irq_handler(irq, bfin_demux_error_irq); + } +#endif + } +#ifdef BF537_GENERIC_ERROR_INT_DEMUX + for (irq = IRQ_PPI_ERROR; irq <= IRQ_UART1_ERROR; irq++) { + set_irq_chip(irq, &bfin_generic_error_irqchip); + set_irq_handler(irq, handle_level_irq); + } +#endif + +#ifdef CONFIG_IRQCHIP_DEMUX_GPIO + for (irq = IRQ_PF0; irq < NR_IRQS; irq++) { + set_irq_chip(irq, &bfin_gpio_irqchip); + /* if configured as edge, then will be changed to do_edge_IRQ */ + set_irq_handler(irq, handle_level_irq); + } +#endif + bfin_write_IMASK(0); + CSYNC(); + ilat = bfin_read_ILAT(); + CSYNC(); + bfin_write_ILAT(ilat); + CSYNC(); + + printk(KERN_INFO + "Configuring Blackfin Priority Driven Interrupts\n"); + /* IMASK=xxx is equivalent to STI xx or irq_flags=xx, + * local_irq_enable() + */ + program_IAR(); + /* Therefore it's better to setup IARs before interrupts enabled */ + search_IAR(); + + /* Enable interrupts IVG7-15 */ + irq_flags = irq_flags | IMASK_IVG15 | + IMASK_IVG14 | IMASK_IVG13 | IMASK_IVG12 | IMASK_IVG11 | + IMASK_IVG10 | IMASK_IVG9 | IMASK_IVG8 | IMASK_IVG7 | + IMASK_IVGHW; + + return 0; +} + +#ifdef CONFIG_DO_IRQ_L1 +void do_irq(int vec, struct pt_regs *fp)__attribute__((l1_text)); +#endif + +void do_irq(int vec, struct pt_regs *fp) +{ + if (vec == EVT_IVTMR_P) { + vec = IRQ_CORETMR; + } else { + struct ivgx *ivg = ivg7_13[vec - IVG7].ifirst; + struct ivgx *ivg_stop = ivg7_13[vec - IVG7].istop; + unsigned long sic_status; + + SSYNC(); + sic_status = bfin_read_SIC_IMASK() & bfin_read_SIC_ISR(); + + for (;; ivg++) { + if (ivg >= ivg_stop) { + atomic_inc(&num_spurious); + return; + } else if (sic_status & ivg->isrflag) + break; + } + vec = ivg->irqno; + } + asm_do_IRQ(vec, fp); + +#ifdef CONFIG_KGDB + kgdb_process_breakpoint(); +#endif +} diff --git a/arch/blackfin/mach-common/irqpanic.c b/arch/blackfin/mach-common/irqpanic.c new file mode 100644 index 0000000..f05e3da --- /dev/null +++ b/arch/blackfin/mach-common/irqpanic.c @@ -0,0 +1,194 @@ +/* + * File: arch/blackfin/mach-common/irqpanic.c + * Based on: + * Author: + * + * Created: ? + * Description: panic kernel with dump information + * + * Modified: rgetz - added cache checking code 14Feb06 + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/kernel_stat.h> +#include <linux/sched.h> +#include <asm/traps.h> +#include <asm/blackfin.h> + +#include "../oprofile/op_blackfin.h" + +#ifdef CONFIG_DEBUG_ICACHE_CHECK +#define L1_ICACHE_START 0xffa10000 +#define L1_ICACHE_END 0xffa13fff +void irq_panic(int reason, struct pt_regs *regs) __attribute__ ((l1_text)); +#endif + +/* + * irq_panic - calls panic with string setup + */ +asmlinkage void irq_panic(int reason, struct pt_regs *regs) +{ + int sig = 0; + siginfo_t info; + +#ifdef CONFIG_DEBUG_ICACHE_CHECK + unsigned int cmd, tag, ca, cache_hi, cache_lo, *pa; + unsigned short i, j, die; + unsigned int bad[10][6]; + + /* check entire cache for coherency + * Since printk is in cacheable memory, + * don't call it until you have checked everything + */ + + die = 0; + i = 0; + + /* check icache */ + + for (ca = L1_ICACHE_START; ca <= L1_ICACHE_END && i < 10; ca += 32) { + + /* Grab various address bits for the itest_cmd fields */ + cmd = (((ca & 0x3000) << 4) | /* ca[13:12] for SBNK[1:0] */ + ((ca & 0x0c00) << 16) | /* ca[11:10] for WAYSEL[1:0] */ + ((ca & 0x3f8)) | /* ca[09:03] for SET[4:0] and DW[1:0] */ + 0); /* Access Tag, Read access */ + + SSYNC(); + bfin_write_ITEST_COMMAND(cmd); + SSYNC(); + tag = bfin_read_ITEST_DATA0(); + SSYNC(); + + /* if tag is marked as valid, check it */ + if (tag & 1) { + /* The icache is arranged in 4 groups of 64-bits */ + for (j = 0; j < 32; j += 8) { + cmd = ((((ca + j) & 0x3000) << 4) | /* ca[13:12] for SBNK[1:0] */ + (((ca + j) & 0x0c00) << 16) | /* ca[11:10] for WAYSEL[1:0] */ + (((ca + j) & 0x3f8)) | /* ca[09:03] for SET[4:0] and DW[1:0] */ + 4); /* Access Data, Read access */ + + SSYNC(); + bfin_write_ITEST_COMMAND(cmd); + SSYNC(); + + cache_hi = bfin_read_ITEST_DATA1(); + cache_lo = bfin_read_ITEST_DATA0(); + + pa = ((unsigned int *)((tag & 0xffffcc00) | + ((ca + j) & ~(0xffffcc00)))); + + /* + * Debugging this, enable + * + * printk("addr: %08x %08x%08x | %08x%08x\n", + * ((unsigned int *)((tag & 0xffffcc00) | ((ca+j) & ~(0xffffcc00)))), + * cache_hi, cache_lo, *(pa+1), *pa); + */ + + if (cache_hi != *(pa + 1) || cache_lo != *pa) { + /* Since icache is not working, stay out of it, by not printing */ + die = 1; + bad[i][0] = (ca + j); + bad[i][1] = cache_hi; + bad[i][2] = cache_lo; + bad[i][3] = ((tag & 0xffffcc00) | + ((ca + j) & ~(0xffffcc00))); + bad[i][4] = *(pa + 1); + bad[i][5] = *(pa); + i++; + } + } + } + } + if (die) { + printk(KERN_EMERG "icache coherency error\n"); + for (j = 0; j <= i; j++) { + printk(KERN_EMERG + "cache address : %08x cache value : %08x%08x\n", + bad[j][0], bad[j][1], bad[j][2]); + printk(KERN_EMERG + "physical address: %08x SDRAM value : %08x%08x\n", + bad[j][3], bad[j][4], bad[j][5]); + } + panic("icache coherency error"); + } else { + printk(KERN_EMERG "icache checked, and OK\n"); + } +#endif + + printk(KERN_EMERG "\n"); + printk(KERN_EMERG "Exception: IRQ 0x%x entered\n", reason); + printk(KERN_EMERG " code=[0x%08lx], stack frame=0x%08lx, " + " bad PC=0x%08lx\n", + (unsigned long)regs->seqstat, + (unsigned long)regs, + (unsigned long)regs->pc); + if (reason == 0x5) { + printk(KERN_EMERG "----------- HARDWARE ERROR -----------\n"); + + /* There is only need to check for Hardware Errors, since other + * EXCEPTIONS are handled in TRAPS.c (MH) + */ + switch (regs->seqstat & SEQSTAT_HWERRCAUSE) { + case (SEQSTAT_HWERRCAUSE_SYSTEM_MMR): /* System MMR Error */ + info.si_code = BUS_ADRALN; + sig = SIGBUS; + printk(KERN_EMERG HWC_x2); + break; + case (SEQSTAT_HWERRCAUSE_EXTERN_ADDR): /* External Memory Addressing Error */ + info.si_code = BUS_ADRERR; + sig = SIGBUS; + printk(KERN_EMERG HWC_x3); + break; + case (SEQSTAT_HWERRCAUSE_PERF_FLOW): /* Performance Monitor Overflow */ + printk(KERN_EMERG HWC_x12); + break; + case (SEQSTAT_HWERRCAUSE_RAISE_5): /* RAISE 5 instruction */ + printk(KERN_EMERG HWC_x18); + break; + default: /* Reserved */ + printk(KERN_EMERG HWC_default); + break; + } + } + + regs->ipend = bfin_read_IPEND(); + dump_bfin_regs(regs, (void *)regs->pc); + if (0 == (info.si_signo = sig) || 0 == user_mode(regs)) /* in kernelspace */ + panic("Unhandled IRQ or exceptions!\n"); + else { /* in userspace */ + info.si_errno = 0; + info.si_addr = (void *)regs->pc; + force_sig_info(sig, &info, current); + } +} + +#ifdef CONFIG_HARDWARE_PM +/* + * call the handler of Performance overflow + */ +asmlinkage void pm_overflow(int irq, struct pt_regs *regs) +{ + pm_overflow_handler(irq, regs); +} +#endif diff --git a/arch/blackfin/mach-common/lock.S b/arch/blackfin/mach-common/lock.S new file mode 100644 index 0000000..2cbb15b --- /dev/null +++ b/arch/blackfin/mach-common/lock.S @@ -0,0 +1,204 @@ +/* + * File: arch/blackfin/mach-common/lock.S + * Based on: + * Author: LG Soft India + * + * Created: ? + * Description: kernel locks + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> +#include <asm/cplb.h> +#include <asm/blackfin.h> + +.text + +#ifdef CONFIG_BLKFIN_CACHE_LOCK + +/* When you come here, it is assumed that + * R0 - Which way to be locked + */ + +ENTRY(_cache_grab_lock) + + [--SP]=( R7:0,P5:0 ); + + P1.H = (IMEM_CONTROL >> 16); + P1.L = (IMEM_CONTROL & 0xFFFF); + P5.H = (ICPLB_ADDR0 >> 16); + P5.L = (ICPLB_ADDR0 & 0xFFFF); + P4.H = (ICPLB_DATA0 >> 16); + P4.L = (ICPLB_DATA0 & 0xFFFF); + R7 = R0; + + /* If the code of interest already resides in the cache + * invalidate the entire cache itself. + * invalidate_entire_icache; + */ + + SP += -12; + [--SP] = RETS; + CALL _invalidate_entire_icache; + RETS = [SP++]; + SP += 12; + + /* Disable the Interrupts*/ + + CLI R3; + +.LLOCK_WAY: + + /* Way0 - 0xFFA133E0 + * Way1 - 0xFFA137E0 + * Way2 - 0xFFA13BE0 Total Way Size = 4K + * Way3 - 0xFFA13FE0 + */ + + /* Procedure Ex. -Set the locks for other ways by setting ILOC[3:1] + * Only Way0 of the instruction cache can now be + * replaced by a new code + */ + + R5 = R7; + CC = BITTST(R7,0); + IF CC JUMP .LCLEAR1; + R7 = 0; + BITSET(R7,0); + JUMP .LDONE1; + +.LCLEAR1: + R7 = 0; + BITCLR(R7,0); +.LDONE1: R4 = R7 << 3; + R7 = [P1]; + R7 = R7 | R4; + SSYNC; /* SSYNC required writing to IMEM_CONTROL. */ + .align 8; + [P1] = R7; + SSYNC; + + R7 = R5; + CC = BITTST(R7,1); + IF CC JUMP .LCLEAR2; + R7 = 0; + BITSET(R7,1); + JUMP .LDONE2; + +.LCLEAR2: + R7 = 0; + BITCLR(R7,1); +.LDONE2: R4 = R7 << 3; + R7 = [P1]; + R7 = R7 | R4; + SSYNC; /* SSYNC required writing to IMEM_CONTROL. */ + .align 8; + [P1] = R7; + SSYNC; + + R7 = R5; + CC = BITTST(R7,2); + IF CC JUMP .LCLEAR3; + R7 = 0; + BITSET(R7,2); + JUMP .LDONE3; +.LCLEAR3: + R7 = 0; + BITCLR(R7,2); +.LDONE3: R4 = R7 << 3; + R7 = [P1]; + R7 = R7 | R4; + SSYNC; /* SSYNC required writing to IMEM_CONTROL. */ + .align 8; + [P1] = R7; + SSYNC; + + + R7 = R5; + CC = BITTST(R7,3); + IF CC JUMP .LCLEAR4; + R7 = 0; + BITSET(R7,3); + JUMP .LDONE4; +.LCLEAR4: + R7 = 0; + BITCLR(R7,3); +.LDONE4: R4 = R7 << 3; + R7 = [P1]; + R7 = R7 | R4; + SSYNC; /* SSYNC required writing to IMEM_CONTROL. */ + .align 8; + [P1] = R7; + SSYNC; + + STI R3; + + ( R7:0,P5:0 ) = [SP++]; + + RTS; + +/* After the execution of critical code, the code is now locked into + * the cache way. Now we need to set ILOC. + * + * R0 - Which way to be locked + */ + +ENTRY(_cache_lock) + + [--SP]=( R7:0,P5:0 ); + + P1.H = (IMEM_CONTROL >> 16); + P1.L = (IMEM_CONTROL & 0xFFFF); + + /* Disable the Interrupts*/ + CLI R3; + + R7 = [P1]; + R2 = 0xFFFFFF87 (X); + R7 = R7 & R2; + R0 = R0 << 3; + R7 = R0 | R7; + SSYNC; /* SSYNC required writing to IMEM_CONTROL. */ + .align 8; + [P1] = R7; + SSYNC; + /* Renable the Interrupts */ + STI R3; + + ( R7:0,P5:0 ) = [SP++]; + RTS; + +#endif /* BLKFIN_CACHE_LOCK */ + +/* Return the ILOC bits of IMEM_CONTROL + */ + +ENTRY(_read_iloc) + + P1.H = (IMEM_CONTROL >> 16); + P1.L = (IMEM_CONTROL & 0xFFFF); + R1 = 0xF; + R0 = [P1]; + R0 = R0 >> 3; + R0 = R0 & R1; + + RTS; diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c new file mode 100644 index 0000000..deb2727 --- /dev/null +++ b/arch/blackfin/mach-common/pm.c @@ -0,0 +1,181 @@ +/* + * File: arch/blackfin/mach-common/pm.c + * Based on: arm/mach-omap/pm.c + * Author: Cliff Brake <cbrake@accelent.com> Copyright (c) 2001 + * + * Created: 2001 + * Description: Power management for the bfin + * + * Modified: Nicolas Pitre - PXA250 support + * Copyright (c) 2002 Monta Vista Software, Inc. + * David Singleton - OMAP1510 + * Copyright (c) 2002 Monta Vista Software, Inc. + * Dirk Behme <dirk.behme@de.bosch.com> - OMAP1510/1610 + * Copyright 2004 + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/pm.h> +#include <linux/sched.h> +#include <linux/proc_fs.h> + +#include <asm/io.h> +#include <asm/dpmc.h> +#include <asm/irq.h> + + +#ifdef CONFIG_PM_WAKEUP_GPIO_POLAR_H +#define WAKEUP_TYPE PM_WAKE_HIGH +#endif + +#ifdef CONFIG_PM_WAKEUP_GPIO_POLAR_L +#define WAKEUP_TYPE PM_WAKE_LOW +#endif + +#ifdef CONFIG_PM_WAKEUP_GPIO_POLAR_EDGE_F +#define WAKEUP_TYPE PM_WAKE_FALLING +#endif + +#ifdef CONFIG_PM_WAKEUP_GPIO_POLAR_EDGE_R +#define WAKEUP_TYPE PM_WAKE_RISING +#endif + +#ifdef CONFIG_PM_WAKEUP_GPIO_POLAR_EDGE_B +#define WAKEUP_TYPE PM_WAKE_BOTH_EDGES +#endif + +void bfin_pm_suspend_standby_enter(void) +{ +#ifdef CONFIG_PM_WAKEUP_BY_GPIO + gpio_pm_wakeup_request(CONFIG_PM_WAKEUP_GPIO_NUMBER, WAKEUP_TYPE); +#endif + +#if defined(CONFIG_PM_WAKEUP_BY_GPIO) || defined(CONFIG_PM_WAKEUP_GPIO_API) + { + u32 flags; + + local_irq_save(flags); + + sleep_deeper(gpio_pm_setup()); /*Goto Sleep*/ + + gpio_pm_restore(); + + bfin_write_SIC_IWR(IWR_ENABLE_ALL); + + local_irq_restore(flags); + } +#endif + +#if defined(CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR) + sleep_deeper(CONFIG_PM_WAKEUP_SIC_IWR); + bfin_write_SIC_IWR(IWR_ENABLE_ALL); +#endif /* CONFIG_PM_WAKEUP_GPIO_BY_SIC_IWR */ +} + + +/* + * bfin_pm_prepare - Do preliminary suspend work. + * @state: suspend state we're entering. + * + */ +static int bfin_pm_prepare(suspend_state_t state) +{ + int error = 0; + + switch (state) { + case PM_SUSPEND_STANDBY: + break; + case PM_SUSPEND_MEM: + return -ENOTSUPP; + + case PM_SUSPEND_DISK: + return -ENOTSUPP; + + default: + return -EINVAL; + } + + return error; +} + +/* + * bfin_pm_enter - Actually enter a sleep state. + * @state: State we're entering. + * + */ +static int bfin_pm_enter(suspend_state_t state) +{ + switch (state) { + case PM_SUSPEND_STANDBY: + bfin_pm_suspend_standby_enter(); + break; + case PM_SUSPEND_MEM: + return -ENOTSUPP; + + case PM_SUSPEND_DISK: + return -ENOTSUPP; + + default: + return -EINVAL; + } + + return 0; +} + +/* + * bfin_pm_finish - Finish up suspend sequence. + * @state: State we're coming out of. + * + * This is called after we wake back up (or if entering the sleep state + * failed). + */ +static int bfin_pm_finish(suspend_state_t state) +{ + switch (state) { + case PM_SUSPEND_STANDBY: + break; + + case PM_SUSPEND_MEM: + return -ENOTSUPP; + + case PM_SUSPEND_DISK: + return -ENOTSUPP; + + default: + return -EINVAL; + } + + return 0; +} + +struct pm_ops bfin_pm_ops = { + .pm_disk_mode = PM_DISK_PLATFORM, + .prepare = bfin_pm_prepare, + .enter = bfin_pm_enter, + .finish = bfin_pm_finish, +}; + +static int __init bfin_pm_init(void) +{ + pm_set_ops(&bfin_pm_ops); + return 0; +} + +__initcall(bfin_pm_init); diff --git a/arch/blackfin/mm/Makefile b/arch/blackfin/mm/Makefile new file mode 100644 index 0000000..2a7202c --- /dev/null +++ b/arch/blackfin/mm/Makefile @@ -0,0 +1,5 @@ +# +# arch/blackfin/mm/Makefile +# + +obj-y := blackfin_sram.o init.o diff --git a/arch/blackfin/mm/blackfin_sram.c b/arch/blackfin/mm/blackfin_sram.c new file mode 100644 index 0000000..dd0c650 --- /dev/null +++ b/arch/blackfin/mm/blackfin_sram.c @@ -0,0 +1,540 @@ +/* + * File: arch/blackfin/mm/blackfin_sram.c + * Based on: + * Author: + * + * Created: + * Description: SRAM driver for Blackfin ADSP-BF5xx + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/autoconf.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/miscdevice.h> +#include <linux/ioport.h> +#include <linux/fcntl.h> +#include <linux/init.h> +#include <linux/poll.h> +#include <linux/proc_fs.h> +#include <linux/spinlock.h> +#include <linux/rtc.h> +#include <asm/blackfin.h> +#include "blackfin_sram.h" + +spinlock_t l1sram_lock, l1_data_sram_lock, l1_inst_sram_lock; + +#if CONFIG_L1_MAX_PIECE < 16 +#undef CONFIG_L1_MAX_PIECE +#define CONFIG_L1_MAX_PIECE 16 +#endif + +#if CONFIG_L1_MAX_PIECE > 1024 +#undef CONFIG_L1_MAX_PIECE +#define CONFIG_L1_MAX_PIECE 1024 +#endif + +#define SRAM_SLT_NULL 0 +#define SRAM_SLT_FREE 1 +#define SRAM_SLT_ALLOCATED 2 + +/* the data structure for L1 scratchpad and DATA SRAM */ +struct l1_sram_piece { + void *paddr; + int size; + int flag; +}; + +static struct l1_sram_piece l1_ssram[CONFIG_L1_MAX_PIECE]; + +#if L1_DATA_A_LENGTH != 0 +static struct l1_sram_piece l1_data_A_sram[CONFIG_L1_MAX_PIECE]; +#endif + +#if L1_DATA_B_LENGTH != 0 +static struct l1_sram_piece l1_data_B_sram[CONFIG_L1_MAX_PIECE]; +#endif + +#if L1_CODE_LENGTH != 0 +static struct l1_sram_piece l1_inst_sram[CONFIG_L1_MAX_PIECE]; +#endif + +/* L1 Scratchpad SRAM initialization function */ +void l1sram_init(void) +{ + printk(KERN_INFO "Blackfin Scratchpad data SRAM: %d KB\n", + L1_SCRATCH_LENGTH >> 10); + + memset(&l1_ssram, 0x00, sizeof(l1_ssram)); + l1_ssram[0].paddr = (void*)L1_SCRATCH_START; + l1_ssram[0].size = L1_SCRATCH_LENGTH; + l1_ssram[0].flag = SRAM_SLT_FREE; + + /* mutex initialize */ + spin_lock_init(&l1sram_lock); +} + +void l1_data_sram_init(void) +{ +#if L1_DATA_A_LENGTH != 0 + printk(KERN_INFO "Blackfin DATA_A SRAM: %d KB\n", + L1_DATA_A_LENGTH >> 10); + + memset(&l1_data_A_sram, 0x00, sizeof(l1_data_A_sram)); + l1_data_A_sram[0].paddr = (void*)L1_DATA_A_START + + (_ebss_l1 - _sdata_l1); + l1_data_A_sram[0].size = L1_DATA_A_LENGTH - (_ebss_l1 - _sdata_l1); + l1_data_A_sram[0].flag = SRAM_SLT_FREE; +#endif +#if L1_DATA_B_LENGTH != 0 + printk(KERN_INFO "Blackfin DATA_B SRAM: %d KB\n", + L1_DATA_B_LENGTH >> 10); + + memset(&l1_data_B_sram, 0x00, sizeof(l1_data_B_sram)); + l1_data_B_sram[0].paddr = (void*)L1_DATA_B_START; + l1_data_B_sram[0].size = L1_DATA_B_LENGTH; + l1_data_B_sram[0].flag = SRAM_SLT_FREE; +#endif + + /* mutex initialize */ + spin_lock_init(&l1_data_sram_lock); +} + +void l1_inst_sram_init(void) +{ +#if L1_CODE_LENGTH != 0 + printk(KERN_INFO "Blackfin Instruction SRAM: %d KB\n", + L1_CODE_LENGTH >> 10); + + memset(&l1_inst_sram, 0x00, sizeof(l1_inst_sram)); + l1_inst_sram[0].paddr = (void*)L1_CODE_START + (_etext_l1 - _stext_l1); + l1_inst_sram[0].size = L1_CODE_LENGTH - (_etext_l1 - _stext_l1); + l1_inst_sram[0].flag = SRAM_SLT_FREE; +#endif + + /* mutex initialize */ + spin_lock_init(&l1_inst_sram_lock); +} + +/* L1 memory allocate function */ +static void *_l1_sram_alloc(size_t size, struct l1_sram_piece *pfree, int count) +{ + int i, index = 0; + void *addr = NULL; + + if (size <= 0) + return NULL; + + /* Align the size */ + size = (size + 3) & ~3; + + /* not use the good method to match the best slot !!! */ + /* search an available memeory slot */ + for (i = 0; i < count; i++) { + if ((pfree[i].flag == SRAM_SLT_FREE) + && (pfree[i].size >= size)) { + addr = pfree[i].paddr; + pfree[i].flag = SRAM_SLT_ALLOCATED; + index = i; + break; + } + } + if (i >= count) + return NULL; + + /* updated the NULL memeory slot !!! */ + if (pfree[i].size > size) { + for (i = 0; i < count; i++) { + if (pfree[i].flag == SRAM_SLT_NULL) { + pfree[i].flag = SRAM_SLT_FREE; + pfree[i].paddr = addr + size; + pfree[i].size = pfree[index].size - size; + pfree[index].size = size; + break; + } + } + } + + return addr; +} + +/* Allocate the largest available block. */ +static void *_l1_sram_alloc_max(struct l1_sram_piece *pfree, int count, + unsigned long *psize) +{ + unsigned long best = 0; + int i, index = -1; + void *addr = NULL; + + /* search an available memeory slot */ + for (i = 0; i < count; i++) { + if (pfree[i].flag == SRAM_SLT_FREE && pfree[i].size > best) { + addr = pfree[i].paddr; + index = i; + best = pfree[i].size; + } + } + if (index < 0) + return NULL; + *psize = best; + + pfree[index].flag = SRAM_SLT_ALLOCATED; + return addr; +} + +/* L1 memory free function */ +static int _l1_sram_free(const void *addr, + struct l1_sram_piece *pfree, int count) +{ + int i, index = 0; + + /* search the relevant memory slot */ + for (i = 0; i < count; i++) { + if (pfree[i].paddr == addr) { + if (pfree[i].flag != SRAM_SLT_ALLOCATED) { + /* error log */ + return -1; + } + index = i; + break; + } + } + if (i >= count) + return -1; + + pfree[index].flag = SRAM_SLT_FREE; + + /* link the next address slot */ + for (i = 0; i < count; i++) { + if (((pfree[index].paddr + pfree[index].size) == pfree[i].paddr) + && (pfree[i].flag == SRAM_SLT_FREE)) { + pfree[i].flag = SRAM_SLT_NULL; + pfree[index].size += pfree[i].size; + pfree[index].flag = SRAM_SLT_FREE; + break; + } + } + + /* link the last address slot */ + for (i = 0; i < count; i++) { + if (((pfree[i].paddr + pfree[i].size) == pfree[index].paddr) && + (pfree[i].flag == SRAM_SLT_FREE)) { + pfree[index].flag = SRAM_SLT_NULL; + pfree[i].size += pfree[index].size; + break; + } + } + + return 0; +} + +int sram_free(const void *addr) +{ + if (0) {} +#if L1_CODE_LENGTH != 0 + else if (addr >= (void *)L1_CODE_START + && addr < (void *)(L1_CODE_START + L1_CODE_LENGTH)) + return l1_inst_sram_free(addr); +#endif +#if L1_DATA_A_LENGTH != 0 + else if (addr >= (void *)L1_DATA_A_START + && addr < (void *)(L1_DATA_A_START + L1_DATA_A_LENGTH)) + return l1_data_A_sram_free(addr); +#endif +#if L1_DATA_B_LENGTH != 0 + else if (addr >= (void *)L1_DATA_B_START + && addr < (void *)(L1_DATA_B_START + L1_DATA_B_LENGTH)) + return l1_data_B_sram_free(addr); +#endif + else + return -1; +} +EXPORT_SYMBOL(sram_free); + +void *l1_data_A_sram_alloc(size_t size) +{ + unsigned flags; + void *addr = NULL; + + /* add mutex operation */ + spin_lock_irqsave(&l1_data_sram_lock, flags); + +#if L1_DATA_A_LENGTH != 0 + addr = _l1_sram_alloc(size, l1_data_A_sram, ARRAY_SIZE(l1_data_A_sram)); +#endif + + /* add mutex operation */ + spin_unlock_irqrestore(&l1_data_sram_lock, flags); + + pr_debug("Allocated address in l1_data_A_sram_alloc is 0x%lx+0x%lx\n", + (long unsigned int)addr, size); + + return addr; +} +EXPORT_SYMBOL(l1_data_A_sram_alloc); + +int l1_data_A_sram_free(const void *addr) +{ + unsigned flags; + int ret; + + /* add mutex operation */ + spin_lock_irqsave(&l1_data_sram_lock, flags); + +#if L1_DATA_A_LENGTH != 0 + ret = _l1_sram_free(addr, + l1_data_A_sram, ARRAY_SIZE(l1_data_A_sram)); +#else + ret = -1; +#endif + + /* add mutex operation */ + spin_unlock_irqrestore(&l1_data_sram_lock, flags); + + return ret; +} +EXPORT_SYMBOL(l1_data_A_sram_free); + +void *l1_data_B_sram_alloc(size_t size) +{ +#if L1_DATA_B_LENGTH != 0 + unsigned flags; + void *addr; + + /* add mutex operation */ + spin_lock_irqsave(&l1_data_sram_lock, flags); + + addr = _l1_sram_alloc(size, l1_data_B_sram, ARRAY_SIZE(l1_data_B_sram)); + + /* add mutex operation */ + spin_unlock_irqrestore(&l1_data_sram_lock, flags); + + pr_debug("Allocated address in l1_data_B_sram_alloc is 0x%lx+0x%lx\n", + (long unsigned int)addr, size); + + return addr; +#else + return NULL; +#endif +} +EXPORT_SYMBOL(l1_data_B_sram_alloc); + +int l1_data_B_sram_free(const void *addr) +{ +#if L1_DATA_B_LENGTH != 0 + unsigned flags; + int ret; + + /* add mutex operation */ + spin_lock_irqsave(&l1_data_sram_lock, flags); + + ret = _l1_sram_free(addr, l1_data_B_sram, ARRAY_SIZE(l1_data_B_sram)); + + /* add mutex operation */ + spin_unlock_irqrestore(&l1_data_sram_lock, flags); + + return ret; +#else + return -1; +#endif +} +EXPORT_SYMBOL(l1_data_B_sram_free); + +void *l1_data_sram_alloc(size_t size) +{ + void *addr = l1_data_A_sram_alloc(size); + + if (!addr) + addr = l1_data_B_sram_alloc(size); + + return addr; +} +EXPORT_SYMBOL(l1_data_sram_alloc); + +void *l1_data_sram_zalloc(size_t size) +{ + void *addr = l1_data_sram_alloc(size); + + if (addr) + memset(addr, 0x00, size); + + return addr; +} +EXPORT_SYMBOL(l1_data_sram_zalloc); + +int l1_data_sram_free(const void *addr) +{ + int ret; + ret = l1_data_A_sram_free(addr); + if (ret == -1) + ret = l1_data_B_sram_free(addr); + return ret; +} +EXPORT_SYMBOL(l1_data_sram_free); + +void *l1_inst_sram_alloc(size_t size) +{ +#if L1_DATA_A_LENGTH != 0 + unsigned flags; + void *addr; + + /* add mutex operation */ + spin_lock_irqsave(&l1_inst_sram_lock, flags); + + addr = _l1_sram_alloc(size, l1_inst_sram, ARRAY_SIZE(l1_inst_sram)); + + /* add mutex operation */ + spin_unlock_irqrestore(&l1_inst_sram_lock, flags); + + pr_debug("Allocated address in l1_inst_sram_alloc is 0x%lx+0x%lx\n", + (long unsigned int)addr, size); + + return addr; +#else + return NULL; +#endif +} +EXPORT_SYMBOL(l1_inst_sram_alloc); + +int l1_inst_sram_free(const void *addr) +{ +#if L1_CODE_LENGTH != 0 + unsigned flags; + int ret; + + /* add mutex operation */ + spin_lock_irqsave(&l1_inst_sram_lock, flags); + + ret = _l1_sram_free(addr, l1_inst_sram, ARRAY_SIZE(l1_inst_sram)); + + /* add mutex operation */ + spin_unlock_irqrestore(&l1_inst_sram_lock, flags); + + return ret; +#else + return -1; +#endif +} +EXPORT_SYMBOL(l1_inst_sram_free); + +/* L1 Scratchpad memory allocate function */ +void *l1sram_alloc(size_t size) +{ + unsigned flags; + void *addr; + + /* add mutex operation */ + spin_lock_irqsave(&l1sram_lock, flags); + + addr = _l1_sram_alloc(size, l1_ssram, ARRAY_SIZE(l1_ssram)); + + /* add mutex operation */ + spin_unlock_irqrestore(&l1sram_lock, flags); + + return addr; +} + +/* L1 Scratchpad memory allocate function */ +void *l1sram_alloc_max(size_t *psize) +{ + unsigned flags; + void *addr; + + /* add mutex operation */ + spin_lock_irqsave(&l1sram_lock, flags); + + addr = _l1_sram_alloc_max(l1_ssram, ARRAY_SIZE(l1_ssram), psize); + + /* add mutex operation */ + spin_unlock_irqrestore(&l1sram_lock, flags); + + return addr; +} + +/* L1 Scratchpad memory free function */ +int l1sram_free(const void *addr) +{ + unsigned flags; + int ret; + + /* add mutex operation */ + spin_lock_irqsave(&l1sram_lock, flags); + + ret = _l1_sram_free(addr, l1_ssram, ARRAY_SIZE(l1_ssram)); + + /* add mutex operation */ + spin_unlock_irqrestore(&l1sram_lock, flags); + + return ret; +} + +int sram_free_with_lsl(const void *addr) +{ + struct sram_list_struct *lsl, **tmp; + struct mm_struct *mm = current->mm; + + for (tmp = &mm->context.sram_list; *tmp; tmp = &(*tmp)->next) + if ((*tmp)->addr == addr) + goto found; + return -1; +found: + lsl = *tmp; + sram_free(addr); + *tmp = lsl->next; + kfree(lsl); + + return 0; +} +EXPORT_SYMBOL(sram_free_with_lsl); + +void *sram_alloc_with_lsl(size_t size, unsigned long flags) +{ + void *addr = NULL; + struct sram_list_struct *lsl = NULL; + struct mm_struct *mm = current->mm; + + lsl = kmalloc(sizeof(struct sram_list_struct), GFP_KERNEL); + if (!lsl) + return NULL; + memset(lsl, 0, sizeof(*lsl)); + + if (flags & L1_INST_SRAM) + addr = l1_inst_sram_alloc(size); + + if (addr == NULL && (flags & L1_DATA_A_SRAM)) + addr = l1_data_A_sram_alloc(size); + + if (addr == NULL && (flags & L1_DATA_B_SRAM)) + addr = l1_data_B_sram_alloc(size); + + if (addr == NULL) { + kfree(lsl); + return NULL; + } + lsl->addr = addr; + lsl->length = size; + lsl->next = mm->context.sram_list; + mm->context.sram_list = lsl; + return addr; +} +EXPORT_SYMBOL(sram_alloc_with_lsl); diff --git a/arch/blackfin/mm/blackfin_sram.h b/arch/blackfin/mm/blackfin_sram.h new file mode 100644 index 0000000..0fb73b7 --- /dev/null +++ b/arch/blackfin/mm/blackfin_sram.h @@ -0,0 +1,38 @@ +/* + * File: arch/blackfin/mm/blackfin_sram.h + * Based on: arch/blackfin/mm/blackfin_sram.c + * Author: Mike Frysinger + * + * Created: Aug 2006 + * Description: Local prototypes meant for internal use only + * + * Modified: + * Copyright 2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __BLACKFIN_SRAM_H__ +#define __BLACKFIN_SRAM_H__ + +extern void l1sram_init(void); +extern void l1_inst_sram_init(void); +extern void l1_data_sram_init(void); +extern void *l1sram_alloc(size_t); + +#endif diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c new file mode 100644 index 0000000..73f72ab --- /dev/null +++ b/arch/blackfin/mm/init.c @@ -0,0 +1,208 @@ +/* + * File: arch/blackfin/mm/init.c + * Based on: + * Author: + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/swap.h> +#include <linux/bootmem.h> +#include <asm/bfin-global.h> +#include <asm/uaccess.h> +#include <asm/l1layout.h> +#include "blackfin_sram.h" + +/* + * BAD_PAGE is the page that is used for page faults when linux + * is out-of-memory. Older versions of linux just did a + * do_exit(), but using this instead means there is less risk + * for a process dying in kernel mode, possibly leaving a inode + * unused etc.. + * + * BAD_PAGETABLE is the accompanying page-table: it is initialized + * to point to BAD_PAGE entries. + * + * ZERO_PAGE is a special page that is used for zero-initialized + * data and COW. + */ +static unsigned long empty_bad_page_table; + +static unsigned long empty_bad_page; + +unsigned long empty_zero_page; + +void show_mem(void) +{ + unsigned long i; + int free = 0, total = 0, reserved = 0, shared = 0; + + int cached = 0; + printk(KERN_INFO "Mem-info:\n"); + show_free_areas(); + i = max_mapnr; + while (i-- > 0) { + total++; + if (PageReserved(mem_map + i)) + reserved++; + else if (PageSwapCache(mem_map + i)) + cached++; + else if (!page_count(mem_map + i)) + free++; + else + shared += page_count(mem_map + i) - 1; + } + printk(KERN_INFO "%d pages of RAM\n", total); + printk(KERN_INFO "%d free pages\n", free); + printk(KERN_INFO "%d reserved pages\n", reserved); + printk(KERN_INFO "%d pages shared\n", shared); + printk(KERN_INFO "%d pages swap cached\n", cached); +} + +/* + * paging_init() continues the virtual memory environment setup which + * was begun by the code in arch/head.S. + * The parameters are pointers to where to stick the starting and ending + * addresses of available kernel virtual memory. + */ +void paging_init(void) +{ + /* + * make sure start_mem is page aligned, otherwise bootmem and + * page_alloc get different views og the world + */ + unsigned long end_mem = memory_end & PAGE_MASK; + + pr_debug("start_mem is %#lx virtual_end is %#lx\n", PAGE_ALIGN(memory_start), end_mem); + + /* + * initialize the bad page table and bad page to point + * to a couple of allocated pages + */ + empty_bad_page_table = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); + empty_bad_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); + empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); + memset((void *)empty_zero_page, 0, PAGE_SIZE); + + /* + * Set up SFC/DFC registers (user data space) + */ + set_fs(KERNEL_DS); + + pr_debug("free_area_init -> start_mem is %#lx virtual_end is %#lx\n", + PAGE_ALIGN(memory_start), end_mem); + + { + unsigned long zones_size[MAX_NR_ZONES] = { 0, }; + + zones_size[ZONE_NORMAL] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT; +#ifdef CONFIG_HIGHMEM + zones_size[ZONE_HIGHMEM] = 0; +#endif + free_area_init(zones_size); + } +} + +void mem_init(void) +{ + unsigned int codek = 0, datak = 0, initk = 0; + unsigned long tmp; + unsigned int len = _ramend - _rambase; + unsigned long start_mem = memory_start; + unsigned long end_mem = memory_end; + + end_mem &= PAGE_MASK; + high_memory = (void *)end_mem; + + start_mem = PAGE_ALIGN(start_mem); + max_mapnr = num_physpages = MAP_NR(high_memory); + printk(KERN_INFO "Physical pages: %lx\n", num_physpages); + + /* This will put all memory onto the freelists. */ + totalram_pages = free_all_bootmem(); + + codek = (_etext - _stext) >> 10; + datak = (__bss_stop - __bss_start) >> 10; + initk = (__init_end - __init_begin) >> 10; + + tmp = nr_free_pages() << PAGE_SHIFT; + printk(KERN_INFO + "Memory available: %luk/%uk RAM, (%uk init code, %uk kernel code, %uk data, %uk dma)\n", + tmp >> 10, len >> 10, initk, codek, datak, DMA_UNCACHED_REGION >> 10); + + /* Initialize the blackfin L1 Memory. */ + l1sram_init(); + l1_data_sram_init(); + l1_inst_sram_init(); + + /* Allocate this once; never free it. We assume this gives us a + pointer to the start of L1 scratchpad memory; panic if it + doesn't. */ + tmp = (unsigned long)l1sram_alloc(sizeof(struct l1_scratch_task_info)); + if (tmp != (unsigned long)L1_SCRATCH_TASK_INFO) { + printk(KERN_EMERG "mem_init(): Did not get the right address from l1sram_alloc: %08lx != %08lx\n", + tmp, (unsigned long)L1_SCRATCH_TASK_INFO); + panic("No L1, time to give up\n"); + } +} + +#ifdef CONFIG_BLK_DEV_INITRD +void free_initrd_mem(unsigned long start, unsigned long end) +{ + int pages = 0; + for (; start < end; start += PAGE_SIZE) { + ClearPageReserved(virt_to_page(start)); + init_page_count(virt_to_page(start)); + free_page(start); + totalram_pages++; + pages++; + } + printk(KERN_NOTICE "Freeing initrd memory: %dk freed\n", pages); +} +#endif + +void free_initmem(void) +{ +#ifdef CONFIG_RAMKERNEL + unsigned long addr; +/* + * the following code should be cool even if these sections + * are not page aligned. + */ + addr = PAGE_ALIGN((unsigned long)(__init_begin)); + /* next to check that the page we free is not a partial page */ + for (; addr + PAGE_SIZE < (unsigned long)(__init_end); + addr += PAGE_SIZE) { + ClearPageReserved(virt_to_page(addr)); + init_page_count(virt_to_page(addr)); + free_page(addr); + totalram_pages++; + } + printk(KERN_NOTICE + "Freeing unused kernel memory: %ldk freed (0x%x - 0x%x)\n", + (addr - PAGE_ALIGN((long)__init_begin)) >> 10, + (int)(PAGE_ALIGN((unsigned long)(__init_begin))), + (int)(addr - PAGE_SIZE)); +#endif +} diff --git a/arch/blackfin/oprofile/Kconfig b/arch/blackfin/oprofile/Kconfig new file mode 100644 index 0000000..0a2fd99 --- /dev/null +++ b/arch/blackfin/oprofile/Kconfig @@ -0,0 +1,29 @@ +menu "Profiling support" +depends on EXPERIMENTAL + +config PROFILING + bool "Profiling support (EXPERIMENTAL)" + help + Say Y here to enable the extended profiling support mechanisms used + by profilers such as OProfile. + +config OPROFILE + tristate "OProfile system profiling (EXPERIMENTAL)" + depends on PROFILING + help + OProfile is a profiling system capable of profiling the + whole system, include the kernel, kernel modules, libraries, + and applications. + + If unsure, say N. + +config HARDWARE_PM + tristate "Hardware Performance Monitor Profiling" + depends on PROFILING + help + take use of hardware performance monitor to profiling the kernel + and application. + + If unsure, say N. + +endmenu diff --git a/arch/blackfin/oprofile/Makefile b/arch/blackfin/oprofile/Makefile new file mode 100644 index 0000000..634e300 --- /dev/null +++ b/arch/blackfin/oprofile/Makefile @@ -0,0 +1,14 @@ +# +# arch/blackfin/oprofile/Makefile +# + +obj-$(CONFIG_OPROFILE) += oprofile.o + +DRIVER_OBJS := $(addprefix ../../../drivers/oprofile/, \ + oprof.o cpu_buffer.o buffer_sync.o \ + event_buffer.o oprofile_files.o \ + oprofilefs.o oprofile_stats.o \ + timer_int.o ) + +oprofile-y := $(DRIVER_OBJS) common.o +oprofile-$(CONFIG_HARDWARE_PM) += op_model_bf533.o diff --git a/arch/blackfin/oprofile/common.c b/arch/blackfin/oprofile/common.c new file mode 100644 index 0000000..009a170 --- /dev/null +++ b/arch/blackfin/oprofile/common.c @@ -0,0 +1,168 @@ +/* + * File: arch/blackfin/oprofile/common.c + * Based on: arch/alpha/oprofile/common.c + * Author: Anton Blanchard <anton@au.ibm.com> + * + * Created: + * Description: + * + * Modified: + * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/oprofile.h> +#include <linux/init.h> +#include <linux/smp.h> +#include <linux/errno.h> +#include <linux/mutex.h> + +#include <asm/ptrace.h> +#include <asm/system.h> +#include <asm/blackfin.h> +#include <asm/irq.h> +#include <asm/io.h> + +#include "op_blackfin.h" + +#define BFIN_533_ID 0xE5040003 +#define BFIN_537_ID 0xE5040002 + +static int pfmon_enabled; +static struct mutex pfmon_lock; + +struct op_bfin533_model *model; + +struct op_counter_config ctr[OP_MAX_COUNTER]; + +static int op_bfin_setup(void) +{ + int ret; + + /* Pre-compute the values to stuff in the hardware registers. */ + spin_lock(&oprofilefs_lock); + ret = model->reg_setup(ctr); + spin_unlock(&oprofilefs_lock); + + return ret; +} + +static void op_bfin_shutdown(void) +{ +#if 0 + /* what is the difference between shutdown and stop? */ +#endif +} + +static int op_bfin_start(void) +{ + int ret = -EBUSY; + + printk(KERN_INFO "KSDBG:in %s\n", __FUNCTION__); + mutex_lock(&pfmon_lock); + if (!pfmon_enabled) { + ret = model->start(ctr); + pfmon_enabled = !ret; + } + mutex_unlock(&pfmon_lock); + + return ret; +} + +static void op_bfin_stop(void) +{ + mutex_lock(&pfmon_lock); + if (pfmon_enabled) { + model->stop(); + pfmon_enabled = 0; + } + mutex_unlock(&pfmon_lock); +} + +static int op_bfin_create_files(struct super_block *sb, struct dentry *root) +{ + int i; + + for (i = 0; i < model->num_counters; ++i) { + struct dentry *dir; + char buf[3]; + printk(KERN_INFO "Oprofile: creating files... \n"); + + snprintf(buf, sizeof buf, "%d", i); + dir = oprofilefs_mkdir(sb, root, buf); + + oprofilefs_create_ulong(sb, dir, "enabled", &ctr[i].enabled); + oprofilefs_create_ulong(sb, dir, "event", &ctr[i].event); + oprofilefs_create_ulong(sb, dir, "count", &ctr[i].count); + /* + * We dont support per counter user/kernel selection, but + * we leave the entries because userspace expects them + */ + oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel); + oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user); + oprofilefs_create_ulong(sb, dir, "unit_mask", + &ctr[i].unit_mask); + } + + return 0; +} +int __init oprofile_arch_init(struct oprofile_operations *ops) +{ +#ifdef CONFIG_HARDWARE_PM + unsigned int dspid; + + mutex_init(&pfmon_lock); + + dspid = bfin_read_DSPID(); + + printk(KERN_INFO "Oprofile got the cpu id is 0x%x. \n", dspid); + + switch (dspid) { + case BFIN_533_ID: + model = &op_model_bfin533; + model->num_counters = 2; + break; + case BFIN_537_ID: + model = &op_model_bfin533; + model->num_counters = 2; + break; + default: + return -ENODEV; + } + + ops->cpu_type = model->name; + ops->create_files = op_bfin_create_files; + ops->setup = op_bfin_setup; + ops->shutdown = op_bfin_shutdown; + ops->start = op_bfin_start; + ops->stop = op_bfin_stop; + + printk(KERN_INFO "oprofile: using %s performance monitoring.\n", + ops->cpu_type); + + return 0; +#else + return -1; +#endif +} + +void oprofile_arch_exit(void) +{ +} diff --git a/arch/blackfin/oprofile/op_blackfin.h b/arch/blackfin/oprofile/op_blackfin.h new file mode 100644 index 0000000..f88f446 --- /dev/null +++ b/arch/blackfin/oprofile/op_blackfin.h @@ -0,0 +1,98 @@ +/* + * File: arch/blackfin/oprofile/op_blackfin.h + * Based on: + * Author: Anton Blanchard <anton@au.ibm.com> + * + * Created: + * Description: + * + * Modified: + * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef OP_BLACKFIN_H +#define OP_BLACKFIN_H 1 + +#define OP_MAX_COUNTER 2 + +#include <asm/blackfin.h> + +/* Per-counter configuration as set via oprofilefs. */ +struct op_counter_config { + unsigned long valid; + unsigned long enabled; + unsigned long event; + unsigned long count; + unsigned long kernel; + unsigned long user; + unsigned long unit_mask; +}; + +/* System-wide configuration as set via oprofilefs. */ +struct op_system_config { + unsigned long enable_kernel; + unsigned long enable_user; +}; + +/* Per-arch configuration */ +struct op_bfin533_model { + int (*reg_setup) (struct op_counter_config *); + int (*start) (struct op_counter_config *); + void (*stop) (void); + int num_counters; + char *name; +}; + +extern struct op_bfin533_model op_model_bfin533; + +static inline unsigned int ctr_read(void) +{ + unsigned int tmp; + + tmp = bfin_read_PFCTL(); + __builtin_bfin_csync(); + + return tmp; +} + +static inline void ctr_write(unsigned int val) +{ + bfin_write_PFCTL(val); + __builtin_bfin_csync(); +} + +static inline void count_read(unsigned int *count) +{ + count[0] = bfin_read_PFCNTR0(); + count[1] = bfin_read_PFCNTR1(); + __builtin_bfin_csync(); +} + +static inline void count_write(unsigned int *count) +{ + bfin_write_PFCNTR0(count[0]); + bfin_write_PFCNTR1(count[1]); + __builtin_bfin_csync(); +} + +extern int pm_overflow_handler(int irq, struct pt_regs *regs); + +#endif diff --git a/arch/blackfin/oprofile/op_model_bf533.c b/arch/blackfin/oprofile/op_model_bf533.c new file mode 100644 index 0000000..b7a20a0 --- /dev/null +++ b/arch/blackfin/oprofile/op_model_bf533.c @@ -0,0 +1,161 @@ +/* + * File: arch/blackfin/oprofile/op_model_bf533.c + * Based on: + * Author: Anton Blanchard <anton@au.ibm.com> + * + * Created: + * Description: + * + * Modified: + * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/oprofile.h> +#include <linux/init.h> +#include <linux/smp.h> +#include <linux/interrupt.h> +#include <asm/ptrace.h> +#include <asm/system.h> +#include <asm/processor.h> +#include <asm/blackfin.h> +#include <asm/irq.h> +#include <asm/io.h> + +#include "op_blackfin.h" + +#define PM_ENABLE 0x01; +#define PM_CTL1_ENABLE 0x18 +#define PM_CTL0_ENABLE 0xC000 +#define COUNT_EDGE_ONLY 0x3000000 + +static int oprofile_running; + +static unsigned curr_pfctl, curr_count[2]; + +static int bfin533_reg_setup(struct op_counter_config *ctr) +{ + unsigned int pfctl = ctr_read(); + unsigned int count[2]; + + /* set Blackfin perf monitor regs with ctr */ + if (ctr[0].enabled) { + pfctl |= (PM_CTL0_ENABLE | ((char)ctr[0].event << 5)); + count[0] = 0xFFFFFFFF - ctr[0].count; + curr_count[0] = count[0]; + } + if (ctr[1].enabled) { + pfctl |= (PM_CTL1_ENABLE | ((char)ctr[1].event << 16)); + count[1] = 0xFFFFFFFF - ctr[1].count; + curr_count[1] = count[1]; + } + + pr_debug("ctr[0].enabled=%d,ctr[1].enabled=%d,ctr[0].event<<5=0x%x,ctr[1].event<<16=0x%x\n", ctr[0].enabled, ctr[1].enabled, ctr[0].event << 5, ctr[1].event << 16); + pfctl |= COUNT_EDGE_ONLY; + curr_pfctl = pfctl; + + pr_debug("write 0x%x to pfctl\n", pfctl); + ctr_write(pfctl); + count_write(count); + + return 0; +} + +static int bfin533_start(struct op_counter_config *ctr) +{ + unsigned int pfctl = ctr_read(); + + pfctl |= PM_ENABLE; + curr_pfctl = pfctl; + + ctr_write(pfctl); + + oprofile_running = 1; + pr_debug("start oprofile counter \n"); + + return 0; +} + +static void bfin533_stop(void) +{ + int pfctl; + + pfctl = ctr_read(); + pfctl &= ~PM_ENABLE; + /* freeze counters */ + ctr_write(pfctl); + + oprofile_running = 0; + pr_debug("stop oprofile counter \n"); +} + +static int get_kernel(void) +{ + int ipend, is_kernel; + + ipend = bfin_read_IPEND(); + + /* test bit 15 */ + is_kernel = ((ipend & 0x8000) != 0); + + return is_kernel; +} + +int pm_overflow_handler(int irq, struct pt_regs *regs) +{ + int is_kernel; + int i, cpu; + unsigned int pc, pfctl; + unsigned int count[2]; + + pr_debug("get interrupt in %s\n", __FUNCTION__); + if (oprofile_running == 0) { + pr_debug("error: entering interrupt when oprofile is stopped.\n\r"); + return -1; + } + + is_kernel = get_kernel(); + cpu = smp_processor_id(); + pc = regs->pc; + pfctl = ctr_read(); + + /* read the two event counter regs */ + count_read(count); + + /* if the counter overflows, add sample to oprofile buffer */ + for (i = 0; i < 2; ++i) { + if (oprofile_running) { + oprofile_add_sample(regs, i); + } + } + + /* reset the perfmon counter */ + ctr_write(curr_pfctl); + count_write(curr_count); + return 0; +} + +struct op_bfin533_model op_model_bfin533 = { + .reg_setup = bfin533_reg_setup, + .start = bfin533_start, + .stop = bfin533_stop, + .num_counters = 2, + .name = "blackfin/bf533" +}; diff --git a/arch/blackfin/oprofile/timer_int.c b/arch/blackfin/oprofile/timer_int.c new file mode 100644 index 0000000..8fba16c --- /dev/null +++ b/arch/blackfin/oprofile/timer_int.c @@ -0,0 +1,74 @@ +/* + * File: arch/blackfin/oprofile/timer_int.c + * Based on: + * Author: Michael Kang + * + * Created: + * Description: + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/init.h> +#include <linux/smp.h> +#include <linux/irq.h> +#include <linux/oprofile.h> + +#include <asm/ptrace.h> + +static void enable_sys_timer0() +{ +} +static void disable_sys_timer0() +{ +} + +static irqreturn_t sys_timer0_int_handler(int irq, void *dev_id, + struct pt_regs *regs) +{ + oprofile_add_sample(regs, 0); + return IRQ_HANDLED; +} + +static int sys_timer0_start(void) +{ + enable_sys_timer0(); + return request_irq(IVG11, sys_timer0_int_handler, 0, "sys_timer0", NULL); +} + +static void sys_timer0_stop(void) +{ + disable_sys_timer(); +} + +int __init sys_timer0_init(struct oprofile_operations *ops) +{ + extern int nmi_active; + + if (nmi_active <= 0) + return -ENODEV; + + ops->start = timer_start; + ops->stop = timer_stop; + ops->cpu_type = "timer"; + printk(KERN_INFO "oprofile: using NMI timer interrupt.\n"); + return 0; +} diff --git a/arch/cris/arch-v32/kernel/fasttimer.c b/arch/cris/arch-v32/kernel/fasttimer.c index 5daeb6f..79e1e4c 100644 --- a/arch/cris/arch-v32/kernel/fasttimer.c +++ b/arch/cris/arch-v32/kernel/fasttimer.c @@ -603,23 +603,8 @@ void schedule_usleep(unsigned long us) #ifdef CONFIG_PROC_FS static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0) - ,int *eof, void *data_unused -#else - ,int unused -#endif - ); -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0) + ,int *eof, void *data_unused); static struct proc_dir_entry *fasttimer_proc_entry; -#else -static struct proc_dir_entry fasttimer_proc_entry = -{ - 0, 9, "fasttimer", - S_IFREG | S_IRUGO, 1, 0, 0, - 0, NULL /* ops -- default to array */, - &proc_fasttimer_read /* get_info */, -}; -#endif #endif /* CONFIG_PROC_FS */ #ifdef CONFIG_PROC_FS @@ -628,12 +613,7 @@ static struct proc_dir_entry fasttimer_proc_entry = #define BIG_BUF_SIZE (500 + NUM_TIMER_STATS * 300) static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0) - ,int *eof, void *data_unused -#else - ,int unused -#endif - ) + ,int *eof, void *data_unused) { unsigned long flags; int i = 0; @@ -808,9 +788,7 @@ static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len memcpy(buf, bigbuf + offset, len); *start = buf; -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0) *eof = 1; -#endif return len; } @@ -974,12 +952,8 @@ void fast_timer_init(void) printk("fast_timer_init()\n"); #ifdef CONFIG_PROC_FS -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0) if ((fasttimer_proc_entry = create_proc_entry( "fasttimer", 0, 0 ))) fasttimer_proc_entry->read_proc = proc_fasttimer_read; -#else - proc_register_dynamic(&proc_root, &fasttimer_proc_entry); -#endif #endif /* PROC_FS */ if(request_irq(TIMER_INTR_VECT, timer_trig_interrupt, IRQF_DISABLED, "fast timer int", NULL)) diff --git a/arch/cris/arch-v32/vmlinux.lds.S b/arch/cris/arch-v32/vmlinux.lds.S index e124fcd..dfa25e1 100644 --- a/arch/cris/arch-v32/vmlinux.lds.S +++ b/arch/cris/arch-v32/vmlinux.lds.S @@ -91,6 +91,7 @@ SECTIONS } SECURITY_INIT + . = ALIGN (8192); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; diff --git a/arch/cris/kernel/profile.c b/arch/cris/kernel/profile.c index 4cfcae6..aad0a9e 100644 --- a/arch/cris/kernel/profile.c +++ b/arch/cris/kernel/profile.c @@ -15,39 +15,47 @@ static int prof_running = 0; void cris_profile_sample(struct pt_regs* regs) { - if (!prof_running) - return; - if (user_mode(regs)) - *(unsigned int*)sample_buffer_pos = current->pid; - else - *(unsigned int*)sample_buffer_pos = 0; - *(unsigned int*)(sample_buffer_pos + 4) = instruction_pointer(regs); - sample_buffer_pos += 8; - if (sample_buffer_pos == sample_buffer + SAMPLE_BUFFER_SIZE) - sample_buffer_pos = sample_buffer; + if (!prof_running) + return; + + if (user_mode(regs)) + *(unsigned int*)sample_buffer_pos = current->pid; + else + *(unsigned int*)sample_buffer_pos = 0; + + *(unsigned int*)(sample_buffer_pos + 4) = instruction_pointer(regs); + sample_buffer_pos += 8; + + if (sample_buffer_pos == sample_buffer + SAMPLE_BUFFER_SIZE) + sample_buffer_pos = sample_buffer; } static ssize_t -read_cris_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos) +read_cris_profile(struct file *file, char __user *buf, + size_t count, loff_t *ppos) { - unsigned long p = *ppos; - if (p > SAMPLE_BUFFER_SIZE) - return 0; - if (p + count > SAMPLE_BUFFER_SIZE) - count = SAMPLE_BUFFER_SIZE - p; - if (copy_to_user(buf, sample_buffer + p,count)) + unsigned long p = *ppos; + + if (p > SAMPLE_BUFFER_SIZE) + return 0; + + if (p + count > SAMPLE_BUFFER_SIZE) + count = SAMPLE_BUFFER_SIZE - p; + if (copy_to_user(buf, sample_buffer + p,count)) return -EFAULT; - memset(sample_buffer + p, 0, count); - *ppos += count; - return count; + + memset(sample_buffer + p, 0, count); + *ppos += count; + + return count; } static ssize_t write_cris_profile(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) + size_t count, loff_t *ppos) { - sample_buffer_pos = sample_buffer; - memset(sample_buffer, 0, SAMPLE_BUFFER_SIZE); + sample_buffer_pos = sample_buffer; + memset(sample_buffer, 0, SAMPLE_BUFFER_SIZE); } static const struct file_operations cris_proc_profile_operations = { @@ -58,16 +66,23 @@ static const struct file_operations cris_proc_profile_operations = { static int __init init_cris_profile(void) { - struct proc_dir_entry *entry; - sample_buffer = kmalloc(SAMPLE_BUFFER_SIZE, GFP_KERNEL); - sample_buffer_pos = sample_buffer; - entry = create_proc_entry("system_profile", S_IWUSR | S_IRUGO, NULL); - if (entry) { - entry->proc_fops = &cris_proc_profile_operations; - entry->size = SAMPLE_BUFFER_SIZE; - } - prof_running = 1; - return 0; + struct proc_dir_entry *entry; + + sample_buffer = kmalloc(SAMPLE_BUFFER_SIZE, GFP_KERNEL); + if (!sample_buffer) { + return -ENOMEM; + } + + sample_buffer_pos = sample_buffer; + + entry = create_proc_entry("system_profile", S_IWUSR | S_IRUGO, NULL); + if (entry) { + entry->proc_fops = &cris_proc_profile_operations; + entry->size = SAMPLE_BUFFER_SIZE; + } + prof_running = 1; + + return 0; } __initcall(init_cris_profile); diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig index cea2374..eed6943 100644 --- a/arch/frv/Kconfig +++ b/arch/frv/Kconfig @@ -53,6 +53,10 @@ config ARCH_HAS_ILOG2_U64 bool default y +config ARCH_USES_SLAB_PAGE_STRUCT + bool + default y + mainmenu "Fujitsu FR-V Kernel Configuration" source "init/Kconfig" diff --git a/arch/frv/kernel/vmlinux.lds.S b/arch/frv/kernel/vmlinux.lds.S index 97910e0..28eae97 100644 --- a/arch/frv/kernel/vmlinux.lds.S +++ b/arch/frv/kernel/vmlinux.lds.S @@ -57,6 +57,7 @@ SECTIONS __alt_instructions_end = .; .altinstr_replacement : { *(.altinstr_replacement) } + . = ALIGN(4096); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c index 9477ccc..cac2c01 100644 --- a/arch/frv/mm/elf-fdpic.c +++ b/arch/frv/mm/elf-fdpic.c @@ -64,6 +64,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi if (len > TASK_SIZE) return -ENOMEM; + /* handle MAP_FIXED */ + if (flags & MAP_FIXED) + return addr; + /* only honour a hint if we're not going to clobber something doing so */ if (addr) { addr = PAGE_ALIGN(addr); diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig index 1734d96..618dbad 100644 --- a/arch/h8300/Kconfig +++ b/arch/h8300/Kconfig @@ -49,10 +49,18 @@ config GENERIC_HWEIGHT bool default y +config GENERIC_HARDIRQS + bool + default y + config GENERIC_CALIBRATE_DELAY bool default y +config GENERIC_TIME + bool + default y + config TIME_LOW_RES bool default y diff --git a/arch/h8300/Makefile b/arch/h8300/Makefile index 40b3f56..b2d896a 100644 --- a/arch/h8300/Makefile +++ b/arch/h8300/Makefile @@ -41,7 +41,7 @@ LDFLAGS += $(ldflags-y) CROSS_COMPILE = h8300-elf- LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(CFLAGS) -print-libgcc-file-name) -head-y := arch/$(ARCH)/platform/$(platform-y)/$(board-y)/crt0_$(model-y).o +head-y := arch/$(ARCH)/platform/$(PLATFORM)/$(BOARD)/crt0_$(MODEL).o core-y += arch/$(ARCH)/kernel/ \ arch/$(ARCH)/mm/ diff --git a/arch/h8300/boot/Makefile b/arch/h8300/boot/Makefile index 65086d9..0bb62e0 100644 --- a/arch/h8300/boot/Makefile +++ b/arch/h8300/boot/Makefile @@ -1,12 +1,22 @@ # arch/h8300/boot/Makefile -targets := vmlinux.srec vmlinux.bin +targets := vmlinux.srec vmlinux.bin zImage +subdir- := compressed OBJCOPYFLAGS_vmlinux.srec := -Osrec OBJCOPYFLAGS_vmlinux.bin := -Obinary +OBJCOPYFLAGS_zImage := -O binary -R .note -R .comment -R .stab -R .stabstr -S $(obj)/vmlinux.srec $(obj)/vmlinux.bin: vmlinux FORCE $(call if_changed,objcopy) @echo ' Kernel: $@ is ready' +$(obj)/zImage: $(obj)/compressed/vmlinux FORCE + $(call if_changed,objcopy) + @echo 'Kernel: $@ is ready' + +$(obj)/compressed/vmlinux: FORCE + $(Q)$(MAKE) $(build)=$(obj)/compressed $@ + CLEAN_FILES += arch/$(ARCH)/vmlinux.bin arch/$(ARCH)/vmlinux.srec + diff --git a/arch/h8300/boot/compressed/Makefile b/arch/h8300/boot/compressed/Makefile new file mode 100644 index 0000000..71aac82 --- /dev/null +++ b/arch/h8300/boot/compressed/Makefile @@ -0,0 +1,37 @@ +# +# linux/arch/sh/boot/compressed/Makefile +# +# create a compressed vmlinux image from the original vmlinux +# + +targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o +EXTRA_AFLAGS := -traditional + +OBJECTS = $(obj)/head.o $(obj)/misc.o + +# +# IMAGE_OFFSET is the load offset of the compression loader +# Assign dummy values if these 2 variables are not defined, +# in order to suppress error message. +# +CONFIG_MEMORY_START ?= 0x00400000 +CONFIG_BOOT_LINK_OFFSET ?= 0x00400000 +IMAGE_OFFSET := $(shell printf "0x%08x" $$[$(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET)]) + +LDFLAGS_vmlinux := -T $(obj)/vmlinux.lds + +$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE + $(call if_changed,ld) + @: + +$(obj)/vmlinux.bin: vmlinux FORCE + $(call if_changed,objcopy) + +$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE + $(call if_changed,gzip) + +LDFLAGS_piggy.o := -r --format binary --oformat elf32-h8300 -T +OBJCOPYFLAGS := -O binary + +$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE + $(call if_changed,ld) diff --git a/arch/h8300/boot/compressed/head.S b/arch/h8300/boot/compressed/head.S new file mode 100644 index 0000000..b8e90d1 --- /dev/null +++ b/arch/h8300/boot/compressed/head.S @@ -0,0 +1,47 @@ +/* + * linux/arch/h8300/boot/compressed/head.S + * + * Copyright (C) 2006 Yoshinori Sato + */ + +.h8300h +#include <linux/linkage.h> + +#define SRAM_START 0xff4000 + + .section .text.startup + .global startup +startup: + mov.l #SRAM_START+0x8000, sp + mov.l #__sbss, er0 + mov.l #__ebss, er1 + sub.l er0, er1 + shlr er1 + shlr er1 + sub.l er2, er2 +1: + mov.l er2, @er0 + adds #4, er0 + dec.l #1, er1 + bne 1b + jsr @_decompress_kernel + jmp @0x400000 + + .align 9 +fake_headers_as_bzImage: + .word 0 + .ascii "HdrS" ; header signature + .word 0x0202 ; header version number (>= 0x0105) + ; or else old loadlin-1.5 will fail) + .word 0 ; default_switch + .word 0 ; SETUPSEG + .word 0x1000 + .word 0 ; pointing to kernel version string + .byte 0 ; = 0, old one (LILO, Loadlin, + ; 0xTV: T=0 for LILO + ; V = version + .byte 1 ; Load flags bzImage=1 + .word 0x8000 ; size to move, when setup is not + .long 0x100000 ; 0x100000 = default for big kernel + .long 0 ; address of loaded ramdisk image + .long 0 ; its size in bytes diff --git a/arch/h8300/boot/compressed/misc.c b/arch/h8300/boot/compressed/misc.c new file mode 100644 index 0000000..8450745 --- /dev/null +++ b/arch/h8300/boot/compressed/misc.c @@ -0,0 +1,219 @@ +/* + * arch/h8300/boot/compressed/misc.c + * + * This is a collection of several routines from gzip-1.0.3 + * adapted for Linux. + * + * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994 + * + * Adapted for h8300 by Yoshinori Sato 2006 + */ + +#include <asm/uaccess.h> + +/* + * gzip declarations + */ + +#define OF(args) args +#define STATIC static + +#undef memset +#undef memcpy +#define memzero(s, n) memset ((s), 0, (n)) + +typedef unsigned char uch; +typedef unsigned short ush; +typedef unsigned long ulg; + +#define WSIZE 0x8000 /* Window size must be at least 32k, */ + /* and a power of two */ + +static uch *inbuf; /* input buffer */ +static uch window[WSIZE]; /* Sliding window buffer */ + +static unsigned insize = 0; /* valid bytes in inbuf */ +static unsigned inptr = 0; /* index of next byte to be processed in inbuf */ +static unsigned outcnt = 0; /* bytes in output buffer */ + +/* gzip flag byte */ +#define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */ +#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */ +#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ +#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ +#define COMMENT 0x10 /* bit 4 set: file comment present */ +#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */ +#define RESERVED 0xC0 /* bit 6,7: reserved */ + +#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf()) + +/* Diagnostic functions */ +#ifdef DEBUG +# define Assert(cond,msg) {if(!(cond)) error(msg);} +# define Trace(x) fprintf x +# define Tracev(x) {if (verbose) fprintf x ;} +# define Tracevv(x) {if (verbose>1) fprintf x ;} +# define Tracec(c,x) {if (verbose && (c)) fprintf x ;} +# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;} +#else +# define Assert(cond,msg) +# define Trace(x) +# define Tracev(x) +# define Tracevv(x) +# define Tracec(c,x) +# define Tracecv(c,x) +#endif + +static int fill_inbuf(void); +static void flush_window(void); +static void error(char *m); +static void gzip_mark(void **); +static void gzip_release(void **); + +extern char input_data[]; +extern int input_len; + +static long bytes_out = 0; +static uch *output_data; +static unsigned long output_ptr = 0; + +static void *malloc(int size); +static void free(void *where); +static void error(char *m); +static void gzip_mark(void **); +static void gzip_release(void **); + +int puts(const char *); + +extern int _text; /* Defined in vmlinux.lds.S */ +extern int _end; +static unsigned long free_mem_ptr; +static unsigned long free_mem_end_ptr; + +#define HEAP_SIZE 0x10000 + +#include "../../../../lib/inflate.c" + +#define SCR *((volatile unsigned char *)0xffff8a) +#define TDR *((volatile unsigned char *)0xffff8b) +#define SSR *((volatile unsigned char *)0xffff8c) + +static void *malloc(int size) +{ + void *p; + + if (size <0) error("Malloc error"); + if (free_mem_ptr == 0) error("Memory error"); + + free_mem_ptr = (free_mem_ptr + 3) & ~3; /* Align */ + + p = (void *)free_mem_ptr; + free_mem_ptr += size; + + if (free_mem_ptr >= free_mem_end_ptr) + error("Out of memory"); + + return p; +} + +static void free(void *where) +{ /* Don't care */ +} + +static void gzip_mark(void **ptr) +{ + *ptr = (void *) free_mem_ptr; +} + +static void gzip_release(void **ptr) +{ + free_mem_ptr = (long) *ptr; +} + +int puts(const char *s) +{ + return 0; +} + +void* memset(void* s, int c, size_t n) +{ + int i; + char *ss = (char*)s; + + for (i=0;i<n;i++) ss[i] = c; + return s; +} + +void* memcpy(void* __dest, __const void* __src, + size_t __n) +{ + int i; + char *d = (char *)__dest, *s = (char *)__src; + + for (i=0;i<__n;i++) d[i] = s[i]; + return __dest; +} + +/* =========================================================================== + * Fill the input buffer. This is called only when the buffer is empty + * and at least one byte is really needed. + */ +static int fill_inbuf(void) +{ + if (insize != 0) { + error("ran out of input data"); + } + + inbuf = input_data; + insize = input_len; + inptr = 1; + return inbuf[0]; +} + +/* =========================================================================== + * Write the output window window[0..outcnt-1] and update crc and bytes_out. + * (Used for the decompressed data only.) + */ +static void flush_window(void) +{ + ulg c = crc; /* temporary variable */ + unsigned n; + uch *in, *out, ch; + + in = window; + out = &output_data[output_ptr]; + for (n = 0; n < outcnt; n++) { + ch = *out++ = *in++; + c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8); + } + crc = c; + bytes_out += (ulg)outcnt; + output_ptr += (ulg)outcnt; + outcnt = 0; +} + +static void error(char *x) +{ + puts("\n\n"); + puts(x); + puts("\n\n -- System halted"); + + while(1); /* Halt */ +} + +#define STACK_SIZE (4096) +long user_stack [STACK_SIZE]; +long* stack_start = &user_stack[STACK_SIZE]; + +void decompress_kernel(void) +{ + output_data = 0; + output_ptr = (unsigned long)0x400000; + free_mem_ptr = (unsigned long)&_end; + free_mem_end_ptr = free_mem_ptr + HEAP_SIZE; + + makecrc(); + puts("Uncompressing Linux... "); + gunzip(); + puts("Ok, booting the kernel.\n"); +} diff --git a/arch/h8300/kernel/Makefile b/arch/h8300/kernel/Makefile index 4edbc2e..ccc1a7f 100644 --- a/arch/h8300/kernel/Makefile +++ b/arch/h8300/kernel/Makefile @@ -4,10 +4,8 @@ extra-y := vmlinux.lds -obj-y := process.o traps.o ptrace.o ints.o \ +obj-y := process.o traps.o ptrace.o irq.o \ sys_h8300.o time.o semaphore.o signal.o \ - setup.o gpio.o init_task.o syscalls.o devres.o - -devres-y = ../../../kernel/irq/devres.o + setup.o gpio.o init_task.o syscalls.o obj-$(CONFIG_MODULES) += module.o h8300_ksyms.o diff --git a/arch/h8300/kernel/irq.c b/arch/h8300/kernel/irq.c new file mode 100644 index 0000000..43d21e9 --- /dev/null +++ b/arch/h8300/kernel/irq.c @@ -0,0 +1,211 @@ +/* + * linux/arch/h8300/kernel/irq.c + * + * Copyright 2007 Yoshinori Sato <ysato@users.sourceforge.jp> + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/kernel_stat.h> +#include <linux/seq_file.h> +#include <linux/init.h> +#include <linux/random.h> +#include <linux/bootmem.h> +#include <linux/irq.h> + +#include <asm/system.h> +#include <asm/traps.h> +#include <asm/io.h> +#include <asm/setup.h> +#include <asm/errno.h> + +/*#define DEBUG*/ + +extern unsigned long *interrupt_redirect_table; +extern const int h8300_saved_vectors[]; +extern const unsigned long h8300_trap_table[]; +int h8300_enable_irq_pin(unsigned int irq); +void h8300_disable_irq_pin(unsigned int irq); + +#define CPU_VECTOR ((unsigned long *)0x000000) +#define ADDR_MASK (0xffffff) + +static inline int is_ext_irq(unsigned int irq) +{ + return (irq >= EXT_IRQ0 && irq <= (EXT_IRQ0 + EXT_IRQS)); +} + +static void h8300_enable_irq(unsigned int irq) +{ + if (is_ext_irq(irq)) + IER_REGS |= 1 << (irq - EXT_IRQ0); +} + +static void h8300_disable_irq(unsigned int irq) +{ + if (is_ext_irq(irq)) + IER_REGS &= ~(1 << (irq - EXT_IRQ0)); +} + +static void h8300_end_irq(unsigned int irq) +{ +} + +static unsigned int h8300_startup_irq(unsigned int irq) +{ + if (is_ext_irq(irq)) + return h8300_enable_irq_pin(irq); + else + return 0; +} + +static void h8300_shutdown_irq(unsigned int irq) +{ + if (is_ext_irq(irq)) + h8300_disable_irq_pin(irq); +} + +/* + * h8300 interrupt controler implementation + */ +struct irq_chip h8300irq_chip = { + .name = "H8300-INTC", + .startup = h8300_startup_irq, + .shutdown = h8300_shutdown_irq, + .enable = h8300_enable_irq, + .disable = h8300_disable_irq, + .ack = NULL, + .end = h8300_end_irq, +}; + +void ack_bad_irq(unsigned int irq) +{ + printk("unexpected IRQ trap at vector %02x\n", irq); +} + +#if defined(CONFIG_RAMKERNEL) +static unsigned long __init *get_vector_address(void) +{ + unsigned long *rom_vector = CPU_VECTOR; + unsigned long base,tmp; + int vec_no; + + base = rom_vector[EXT_IRQ0] & ADDR_MASK; + + /* check romvector format */ + for (vec_no = EXT_IRQ1; vec_no <= EXT_IRQ0+EXT_IRQS; vec_no++) { + if ((base+(vec_no - EXT_IRQ0)*4) != (rom_vector[vec_no] & ADDR_MASK)) + return NULL; + } + + /* ramvector base address */ + base -= EXT_IRQ0*4; + + /* writerble check */ + tmp = ~(*(volatile unsigned long *)base); + (*(volatile unsigned long *)base) = tmp; + if ((*(volatile unsigned long *)base) != tmp) + return NULL; + return (unsigned long *)base; +} + +static void __init setup_vector(void) +{ + int i; + unsigned long *ramvec,*ramvec_p; + const unsigned long *trap_entry; + const int *saved_vector; + + ramvec = get_vector_address(); + if (ramvec == NULL) + panic("interrupt vector serup failed."); + else + printk(KERN_INFO "virtual vector at 0x%08lx\n",(unsigned long)ramvec); + + /* create redirect table */ + ramvec_p = ramvec; + trap_entry = h8300_trap_table; + saved_vector = h8300_saved_vectors; + for ( i = 0; i < NR_IRQS; i++) { + if (i == *saved_vector) { + ramvec_p++; + saved_vector++; + } else { + if ( i < NR_TRAPS ) { + if (*trap_entry) + *ramvec_p = VECTOR(*trap_entry); + ramvec_p++; + trap_entry++; + } else + *ramvec_p++ = REDIRECT(interrupt_entry); + } + } + interrupt_redirect_table = ramvec; +#ifdef DEBUG + ramvec_p = ramvec; + for (i = 0; i < NR_IRQS; i++) { + if ((i % 8) == 0) + printk(KERN_DEBUG "\n%p: ",ramvec_p); + printk(KERN_DEBUG "%p ",*ramvec_p); + ramvec_p++; + } + printk(KERN_DEBUG "\n"); +#endif +} +#else +#define setup_vector() do { } while(0) +#endif + +void __init init_IRQ(void) +{ + int c; + + setup_vector(); + + for (c = 0; c < NR_IRQS; c++) { + irq_desc[c].status = IRQ_DISABLED; + irq_desc[c].action = NULL; + irq_desc[c].depth = 1; + irq_desc[c].chip = &h8300irq_chip; + } +} + +asmlinkage void do_IRQ(int irq) +{ + irq_enter(); + __do_IRQ(irq); + irq_exit(); +} + +#if defined(CONFIG_PROC_FS) +int show_interrupts(struct seq_file *p, void *v) +{ + int i = *(loff_t *) v, j; + struct irqaction * action; + unsigned long flags; + + if (i == 0) + seq_puts(p, " CPU0"); + + if (i < NR_IRQS) { + spin_lock_irqsave(&irq_desc[i].lock, flags); + action = irq_desc[i].action; + if (!action) + goto unlock; + seq_printf(p, "%3d: ",i); + seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]); + seq_printf(p, " %14s", irq_desc[i].chip->name); + seq_printf(p, "-%-8s", irq_desc[i].name); + seq_printf(p, " %s", action->name); + + for (action=action->next; action; action = action->next) + seq_printf(p, ", %s", action->name); + seq_putc(p, '\n'); +unlock: + spin_unlock_irqrestore(&irq_desc[i].lock, flags); + } + return 0; +} +#endif diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c index 313cd80..b2e86d02 100644 --- a/arch/h8300/kernel/setup.c +++ b/arch/h8300/kernel/setup.c @@ -33,10 +33,7 @@ #include <asm/setup.h> #include <asm/irq.h> - -#ifdef CONFIG_BLK_DEV_INITRD #include <asm/pgtable.h> -#endif #if defined(__H8300H__) #define CPU "H8/300H" diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c index d1ef615..3306382 100644 --- a/arch/h8300/kernel/time.c +++ b/arch/h8300/kernel/time.c @@ -44,7 +44,7 @@ static void timer_interrupt(int irq, void *dummy, struct pt_regs * regs) #ifndef CONFIG_SMP update_process_times(user_mode(regs)); #endif - profile_tick(CPU_PROFILING, regs); + profile_tick(CPU_PROFILING); } void time_init(void) @@ -66,55 +66,3 @@ void time_init(void) platform_timer_setup(timer_interrupt); } - -/* - * This version of gettimeofday has near microsecond resolution. - */ -void do_gettimeofday(struct timeval *tv) -{ - unsigned long flags; - unsigned long usec, sec; - - read_lock_irqsave(&xtime_lock, flags); - usec = 0; - sec = xtime.tv_sec; - usec += (xtime.tv_nsec / 1000); - read_unlock_irqrestore(&xtime_lock, flags); - - while (usec >= 1000000) { - usec -= 1000000; - sec++; - } - - tv->tv_sec = sec; - tv->tv_usec = usec; -} - -EXPORT_SYMBOL(do_gettimeofday); - -int do_settimeofday(struct timespec *tv) -{ - if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) - return -EINVAL; - - write_lock_irq(&xtime_lock); - /* This is revolting. We need to set the xtime.tv_usec - * correctly. However, the value in this location is - * is value at the last tick. - * Discover what correction gettimeofday - * would have done, and then undo it! - */ - while (tv->tv_nsec < 0) { - tv->tv_nsec += NSEC_PER_SEC; - tv->tv_sec--; - } - - xtime.tv_sec = tv->tv_sec; - xtime.tv_nsec = tv->tv_nsec; - ntp_clear(); - write_sequnlock_irq(&xtime_lock); - clock_was_set(); - return 0; -} - -EXPORT_SYMBOL(do_settimeofday); diff --git a/arch/h8300/mm/kmap.c b/arch/h8300/mm/kmap.c index 26ab172..5c7af09 100644 --- a/arch/h8300/mm/kmap.c +++ b/arch/h8300/mm/kmap.c @@ -24,12 +24,14 @@ #undef DEBUG +#define VIRT_OFFSET (0x01000000) + /* * Map some physical address range into the kernel address space. */ void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag) { - return (void *)physaddr; + return (void *)(physaddr + VIRT_OFFSET); } /* diff --git a/arch/h8300/platform/h8300h/Makefile b/arch/h8300/platform/h8300h/Makefile index 5d42c77..b24ea08 100644 --- a/arch/h8300/platform/h8300h/Makefile +++ b/arch/h8300/platform/h8300h/Makefile @@ -4,4 +4,4 @@ # Reuse any files we can from the H8/300H # -obj-y := entry.o ints_h8300h.o ptrace_h8300h.o +obj-y := entry.o irq_pin.o ptrace_h8300h.o diff --git a/arch/h8300/platform/h8300h/entry.S b/arch/h8300/platform/h8300h/entry.S index d2dea24..f86ac3b 100644 --- a/arch/h8300/platform/h8300h/entry.S +++ b/arch/h8300/platform/h8300h/entry.S @@ -30,12 +30,12 @@ mov.l er0,@-sp stc ccr,r0l /* check kernel mode */ - orc #0x10,ccr btst #4,r0l bne 5f mov.l sp,@SYMBOL_NAME(sw_usp) /* user mode */ mov.l @sp,er0 + orc #0x10,ccr mov.l @SYMBOL_NAME(sw_ksp),sp sub.l #(LRET-LORIG),sp /* allocate LORIG - LRET */ mov.l er0,@-sp @@ -165,7 +165,7 @@ SYMBOL_NAME_LABEL(interrupt_entry) dec.l #1,er0 mov.l sp,er1 subs #4,er1 /* adjust ret_pc */ - jsr @SYMBOL_NAME(process_int) + jsr @SYMBOL_NAME(do_IRQ) mov.l @SYMBOL_NAME(irq_stat)+CPUSTAT_SOFTIRQ_PENDING,er0 beq 1f jsr @SYMBOL_NAME(do_softirq) diff --git a/arch/h8300/platform/h8300h/generic/Makefile b/arch/h8300/platform/h8300h/generic/Makefile index b6ea768..32b964a 100644 --- a/arch/h8300/platform/h8300h/generic/Makefile +++ b/arch/h8300/platform/h8300h/generic/Makefile @@ -2,5 +2,5 @@ # Makefile for the linux kernel. # +extra-y := crt0_$(MODEL).o obj-y := timer.o -extra-y = crt0_$(MODEL).o diff --git a/arch/h8300/platform/h8300h/ints_h8300h.c b/arch/h8300/platform/h8300h/ints_h8300h.c deleted file mode 100644 index f177711..0000000 --- a/arch/h8300/platform/h8300h/ints_h8300h.c +++ /dev/null @@ -1,85 +0,0 @@ -/* - * linux/arch/h8300/platform/h8300h/ints_h8300h.c - * Interrupt handling CPU variants - * - * Yoshinori Sato <ysato@users.sourceforge.jp> - * - */ - -#include <linux/init.h> -#include <linux/errno.h> - -#include <asm/ptrace.h> -#include <asm/traps.h> -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/gpio.h> -#include <asm/regs306x.h> - -/* saved vector list */ -const int __initdata h8300_saved_vectors[]={ -#if defined(CONFIG_GDB_DEBUG) - TRAP3_VEC, -#endif - -1 -}; - -/* trap entry table */ -const unsigned long __initdata h8300_trap_table[NR_TRAPS]={ - 0,0,0,0,0,0,0,0, - (unsigned long)system_call, /* TRAPA #0 */ - 0,0, - (unsigned long)trace_break, /* TRAPA #3 */ -}; - -int h8300_enable_irq_pin(unsigned int irq) -{ - int bitmask; - if (irq < EXT_IRQ0 || irq > EXT_IRQ5) - return 0; - - /* initialize IRQ pin */ - bitmask = 1 << (irq - EXT_IRQ0); - switch(irq) { - case EXT_IRQ0: - case EXT_IRQ1: - case EXT_IRQ2: - case EXT_IRQ3: - if (H8300_GPIO_RESERVE(H8300_GPIO_P8, bitmask) == 0) - return -EBUSY; - H8300_GPIO_DDR(H8300_GPIO_P8, bitmask, H8300_GPIO_INPUT); - break; - case EXT_IRQ4: - case EXT_IRQ5: - if (H8300_GPIO_RESERVE(H8300_GPIO_P9, bitmask) == 0) - return -EBUSY; - H8300_GPIO_DDR(H8300_GPIO_P9, bitmask, H8300_GPIO_INPUT); - break; - } - - return 0; -} - -void h8300_disable_irq_pin(unsigned int irq) -{ - int bitmask; - if (irq < EXT_IRQ0 || irq > EXT_IRQ5) - return; - - /* disable interrupt & release IRQ pin */ - bitmask = 1 << (irq - EXT_IRQ0); - switch(irq) { - case EXT_IRQ0: - case EXT_IRQ1: - case EXT_IRQ2: - case EXT_IRQ3: - *(volatile unsigned char *)IER &= ~bitmask; - H8300_GPIO_FREE(H8300_GPIO_P8, bitmask); - break ; - case EXT_IRQ4: - case EXT_IRQ5: - *(volatile unsigned char *)IER &= ~bitmask; - H8300_GPIO_FREE(H8300_GPIO_P9, bitmask); - break; - } -} diff --git a/arch/h8300/platform/h8s/entry.S b/arch/h8300/platform/h8s/entry.S index aeb2e9f..f3d6b8e 100644 --- a/arch/h8300/platform/h8s/entry.S +++ b/arch/h8300/platform/h8s/entry.S @@ -31,12 +31,13 @@ mov.l er0,@-sp stc ccr,r0l /* check kernel mode */ - orc #0x10,ccr btst #4,r0l bne 5f - mov.l sp,@SYMBOL_NAME(sw_usp) /* user mode */ - mov.l @sp,er0 + /* user mode */ + mov.l sp,@SYMBOL_NAME(sw_usp) + mov.l @sp,er0 /* restore saved er0 */ + orc #0x10,ccr /* switch kernel stack */ mov.l @SYMBOL_NAME(sw_ksp),sp sub.l #(LRET-LORIG),sp /* allocate LORIG - LRET */ stm.l er0-er3,@-sp @@ -55,8 +56,9 @@ mov.l er0,@(LER0-LER3:16,sp) /* copy ER0 */ bra 6f 5: - mov.l @sp,er0 /* kernel mode */ - subs #2,sp /* dummy ccr */ + /* kernel mode */ + mov.l @sp,er0 /* restore saved er0 */ + subs #2,sp /* set dummy ccr */ stm.l er0-er3,@-sp mov.w @(LRET-LER3:16,sp),r1 /* copy old ccr */ mov.b r1h,r1l @@ -94,6 +96,7 @@ mov.l @sp+,er1 add.l #(LRET-LER1),sp /* remove LORIG - LRET */ mov.l sp,@SYMBOL_NAME(sw_ksp) + andc #0xef,ccr /* switch to user mode */ mov.l er0,sp bra 8f 7: @@ -173,9 +176,6 @@ SYMBOL_NAME_LABEL(interrupt_entry) SYMBOL_NAME_LABEL(system_call) subs #4,sp /* dummy LVEC */ SAVE_ALL - mov.w @(LCCR:16,sp),r1 - bset #4,r1l - ldc r1l,ccr /* restore ccr */ mov.l er0,er4 mov.l #-ENOSYS,er0 mov.l er0,@(LER0:16,sp) @@ -198,6 +198,7 @@ SYMBOL_NAME_LABEL(system_call) mov.l @(LER1:16,sp),er0 mov.l @(LER2:16,sp),er1 mov.l @(LER3:16,sp),er2 + andc #0x7f,ccr jsr @er4 mov.l er0,@(LER0:16,sp) /* save the return value */ #if defined(CONFIG_SYSCALL_PRINT) diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index 53d6237..64ad10f 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -79,6 +79,10 @@ config ARCH_MAY_HAVE_PC_FDC bool default y +config ARCH_USES_SLAB_PAGE_STRUCT + bool + default y + config DMI bool default y @@ -220,7 +224,7 @@ config PARAVIRT config VMI bool "VMI Paravirt-ops support" - depends on PARAVIRT && !COMPAT_VDSO + depends on PARAVIRT help VMI provides a paravirtualized interface to the VMware ESX server (it could be used by other hypervisors in theory too, but is not @@ -571,6 +575,9 @@ choice bool "3G/1G user/kernel split (for full 1G low memory)" config VMSPLIT_2G bool "2G/2G user/kernel split" + config VMSPLIT_2G_OPT + depends on !HIGHMEM + bool "2G/2G user/kernel split (for full 2G low memory)" config VMSPLIT_1G bool "1G/3G user/kernel split" endchoice @@ -578,7 +585,8 @@ endchoice config PAGE_OFFSET hex default 0xB0000000 if VMSPLIT_3G_OPT - default 0x78000000 if VMSPLIT_2G + default 0x80000000 if VMSPLIT_2G + default 0x78000000 if VMSPLIT_2G_OPT default 0x40000000 if VMSPLIT_1G default 0xC0000000 @@ -915,12 +923,9 @@ source kernel/power/Kconfig source "drivers/acpi/Kconfig" -menu "APM (Advanced Power Management) BIOS Support" -depends on PM && !X86_VISWS - -config APM +menuconfig APM tristate "APM (Advanced Power Management) BIOS support" - depends on PM + depends on PM && !X86_VISWS ---help--- APM is a BIOS specification for saving power using several different techniques. This is mostly useful for battery powered laptops with @@ -977,9 +982,10 @@ config APM To compile this driver as a module, choose M here: the module will be called apm. +if APM + config APM_IGNORE_USER_SUSPEND bool "Ignore USER SUSPEND" - depends on APM help This option will ignore USER SUSPEND requests. On machines with a compliant APM BIOS, you want to say N. However, on the NEC Versa M @@ -987,7 +993,6 @@ config APM_IGNORE_USER_SUSPEND config APM_DO_ENABLE bool "Enable PM at boot time" - depends on APM ---help--- Enable APM features at boot time. From page 36 of the APM BIOS specification: "When disabled, the APM BIOS does not automatically @@ -1005,7 +1010,6 @@ config APM_DO_ENABLE config APM_CPU_IDLE bool "Make CPU Idle calls when idle" - depends on APM help Enable calls to APM CPU Idle/CPU Busy inside the kernel's idle loop. On some machines, this can activate improved power savings, such as @@ -1017,7 +1021,6 @@ config APM_CPU_IDLE config APM_DISPLAY_BLANK bool "Enable console blanking using APM" - depends on APM help Enable console blanking using the APM. Some laptops can use this to turn off the LCD backlight when the screen blanker of the Linux @@ -1029,22 +1032,8 @@ config APM_DISPLAY_BLANK backlight at all, or it might print a lot of errors to the console, especially if you are using gpm. -config APM_RTC_IS_GMT - bool "RTC stores time in GMT" - depends on APM - help - Say Y here if your RTC (Real Time Clock a.k.a. hardware clock) - stores the time in GMT (Greenwich Mean Time). Say N if your RTC - stores localtime. - - It is in fact recommended to store GMT in your RTC, because then you - don't have to worry about daylight savings time changes. The only - reason not to use GMT in your RTC is if you also run a broken OS - that doesn't understand GMT. - config APM_ALLOW_INTS bool "Allow interrupts during APM BIOS calls" - depends on APM help Normally we disable external interrupts while we are making calls to the APM BIOS as a measure to lessen the effects of a badly behaving @@ -1055,13 +1044,12 @@ config APM_ALLOW_INTS config APM_REAL_MODE_POWER_OFF bool "Use real mode APM BIOS call to power off" - depends on APM help Use real mode APM BIOS calls to switch off the computer. This is a work-around for a number of buggy BIOSes. Switch this option on if your computer crashes instead of powering off properly. -endmenu +endif # APM source "arch/i386/kernel/cpu/cpufreq/Kconfig" @@ -1073,6 +1061,7 @@ config PCI bool "PCI support" if !X86_VISWS depends on !X86_VOYAGER default y if X86_VISWS + select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC) help Find out whether you have a PCI motherboard. PCI is the name of a bus system, i.e. the way the CPU talks to the other stuff inside diff --git a/arch/i386/Kconfig.cpu b/arch/i386/Kconfig.cpu index b99c0e2..dce6124 100644 --- a/arch/i386/Kconfig.cpu +++ b/arch/i386/Kconfig.cpu @@ -43,6 +43,7 @@ config M386 - "Geode GX/LX" For AMD Geode GX and LX processors. - "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3. - "VIA C3-2" for VIA C3-2 "Nehemiah" (model 9 and above). + - "VIA C7" for VIA C7. If you don't know what to do, choose "386". @@ -203,6 +204,12 @@ config MVIAC3_2 of SSE and tells gcc to treat the CPU as a 686. Note, this kernel will not boot on older (pre model 9) C3s. +config MVIAC7 + bool "VIA C7" + help + Select this for a VIA C7. Selecting this uses the correct cache + shift and tells gcc to treat the CPU as a 686. + endchoice config X86_GENERIC @@ -231,16 +238,21 @@ config X86_L1_CACHE_SHIFT default "7" if MPENTIUM4 || X86_GENERIC default "4" if X86_ELAN || M486 || M386 || MGEODEGX1 default "5" if MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX - default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 + default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MVIAC7 + +config X86_XADD + bool + depends on !M386 + default y config RWSEM_GENERIC_SPINLOCK bool - depends on M386 + depends on !X86_XADD default y config RWSEM_XCHGADD_ALGORITHM bool - depends on !M386 + depends on X86_XADD default y config ARCH_HAS_ILOG2_U32 @@ -297,7 +309,7 @@ config X86_ALIGNMENT_16 config X86_GOOD_APIC bool - depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON || MCORE2 + depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON || MCORE2 || MVIAC7 default y config X86_INTEL_USERCOPY @@ -322,5 +334,18 @@ config X86_OOSTORE config X86_TSC bool - depends on (MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MGEODEGX1 || MGEODE_LX || MCORE2) && !X86_NUMAQ + depends on (MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2) && !X86_NUMAQ default y + +# this should be set for all -march=.. options where the compiler +# generates cmov. +config X86_CMOV + bool + depends on (MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7) + default y + +config X86_MINIMUM_CPU_MODEL + int + default "4" if X86_XADD || X86_CMPXCHG || X86_BSWAP + default "0" + diff --git a/arch/i386/Kconfig.debug b/arch/i386/Kconfig.debug index 458bc16..b31c080 100644 --- a/arch/i386/Kconfig.debug +++ b/arch/i386/Kconfig.debug @@ -85,14 +85,4 @@ config DOUBLEFAULT option saves about 4k and might cause you much additional grey hair. -config DEBUG_PARAVIRT - bool "Enable some paravirtualization debugging" - default n - depends on PARAVIRT && DEBUG_KERNEL - help - Currently deliberately clobbers regs which are allowed to be - clobbered in inlined paravirt hooks, even in native mode. - If turning this off solves a problem, then DISABLE_INTERRUPTS() or - ENABLE_INTERRUPTS() is lying about what registers can be clobbered. - endmenu diff --git a/arch/i386/Makefile b/arch/i386/Makefile index bd28f9f..6dc5e5d 100644 --- a/arch/i386/Makefile +++ b/arch/i386/Makefile @@ -34,7 +34,7 @@ CHECKFLAGS += -D__i386__ CFLAGS += -pipe -msoft-float -mregparm=3 -freg-struct-return # prevent gcc from keeping the stack 16 byte aligned -CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2) +CFLAGS += -mpreferred-stack-boundary=4 # CPU-specific tuning. Anything which can be shared with UML should go here. include $(srctree)/arch/i386/Makefile.cpu diff --git a/arch/i386/Makefile.cpu b/arch/i386/Makefile.cpu index a32c031..e372b58 100644 --- a/arch/i386/Makefile.cpu +++ b/arch/i386/Makefile.cpu @@ -4,9 +4,9 @@ #-mtune exists since gcc 3.4 HAS_MTUNE := $(call cc-option-yn, -mtune=i386) ifeq ($(HAS_MTUNE),y) -tune = $(call cc-option,-mtune=$(1),) +tune = $(call cc-option,-mtune=$(1),$(2)) else -tune = $(call cc-option,-mcpu=$(1),) +tune = $(call cc-option,-mcpu=$(1),$(2)) endif align := $(cc-option-align) @@ -32,7 +32,8 @@ cflags-$(CONFIG_MWINCHIP2) += $(call cc-option,-march=winchip2,-march=i586) cflags-$(CONFIG_MWINCHIP3D) += $(call cc-option,-march=winchip2,-march=i586) cflags-$(CONFIG_MCYRIXIII) += $(call cc-option,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0 cflags-$(CONFIG_MVIAC3_2) += $(call cc-option,-march=c3-2,-march=i686) -cflags-$(CONFIG_MCORE2) += -march=i686 $(call cc-option,-mtune=core2,$(call cc-option,-mtune=generic,-mtune=i686)) +cflags-$(CONFIG_MVIAC7) += -march=i686 +cflags-$(CONFIG_MCORE2) += -march=i686 $(call tune,core2) # AMD Elan support cflags-$(CONFIG_X86_ELAN) += -march=i486 @@ -42,5 +43,5 @@ cflags-$(CONFIG_MGEODEGX1) += -march=pentium-mmx # add at the end to overwrite eventual tuning options from earlier # cpu entries -cflags-$(CONFIG_X86_GENERIC) += $(call tune,generic) +cflags-$(CONFIG_X86_GENERIC) += $(call tune,generic,$(call tune,i686)) diff --git a/arch/i386/boot/Makefile b/arch/i386/boot/Makefile index e979466..bfbc320 100644 --- a/arch/i386/boot/Makefile +++ b/arch/i386/boot/Makefile @@ -36,9 +36,9 @@ HOSTCFLAGS_build.o := $(LINUXINCLUDE) # --------------------------------------------------------------------------- $(obj)/zImage: IMAGE_OFFSET := 0x1000 -$(obj)/zImage: EXTRA_AFLAGS := -traditional $(SVGA_MODE) $(RAMDISK) +$(obj)/zImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK) $(obj)/bzImage: IMAGE_OFFSET := 0x100000 -$(obj)/bzImage: EXTRA_AFLAGS := -traditional $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__ +$(obj)/bzImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__ $(obj)/bzImage: BUILDFLAGS := -b quiet_cmd_image = BUILD $@ diff --git a/arch/i386/boot/compressed/misc.c b/arch/i386/boot/compressed/misc.c index 1ce7017..b28505c 100644 --- a/arch/i386/boot/compressed/misc.c +++ b/arch/i386/boot/compressed/misc.c @@ -189,7 +189,7 @@ static void putstr(const char *); static unsigned long free_mem_ptr; static unsigned long free_mem_end_ptr; -#define HEAP_SIZE 0x3000 +#define HEAP_SIZE 0x4000 static char *vidmem = (char *)0xb8000; static int vidport; diff --git a/arch/i386/boot/setup.S b/arch/i386/boot/setup.S index 06edf1c..f8b3b9c 100644 --- a/arch/i386/boot/setup.S +++ b/arch/i386/boot/setup.S @@ -52,6 +52,7 @@ #include <asm/boot.h> #include <asm/e820.h> #include <asm/page.h> +#include <asm/setup.h> /* Signature words to ensure LILO loaded us right */ #define SIG1 0xAA55 @@ -81,7 +82,7 @@ start: # This is the setup header, and it must start at %cs:2 (old 0x9020:2) .ascii "HdrS" # header signature - .word 0x0205 # header version number (>= 0x0105) + .word 0x0206 # header version number (>= 0x0105) # or else old loadlin-1.5 will fail) realmode_swtch: .word 0, 0 # default_switch, SETUPSEG start_sys_seg: .word SYSSEG @@ -171,6 +172,10 @@ relocatable_kernel: .byte 0 pad2: .byte 0 pad3: .word 0 +cmdline_size: .long COMMAND_LINE_SIZE-1 #length of the command line, + #added with boot protocol + #version 2.06 + trampoline: call start_of_setup .align 16 # The offset at this point is 0x240 @@ -297,7 +302,24 @@ good_sig: loader_panic_mess: .string "Wrong loader, giving up..." +# check minimum cpuid +# we do this here because it is the last place we can actually +# show a user visible error message. Later the video modus +# might be already messed up. loader_ok: + call verify_cpu + testl %eax,%eax + jz cpu_ok + lea cpu_panic_mess,%si + call prtstr +1: jmp 1b + +cpu_panic_mess: + .asciz "PANIC: CPU too old for this kernel." + +#include "../kernel/verify_cpu.S" + +cpu_ok: # Get memory size (extended mem, kB) xorl %eax, %eax diff --git a/arch/i386/defconfig b/arch/i386/defconfig index c96911c..9da8441 100644 --- a/arch/i386/defconfig +++ b/arch/i386/defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.21-rc3 -# Wed Mar 7 15:29:47 2007 +# Linux kernel version: 2.6.21-git3 +# Tue May 1 07:30:51 2007 # CONFIG_X86_32=y CONFIG_GENERIC_TIME=y @@ -108,9 +108,9 @@ CONFIG_DEFAULT_IOSCHED="anticipatory" # # Processor type and features # -# CONFIG_TICK_ONESHOT is not set -# CONFIG_NO_HZ is not set -# CONFIG_HIGH_RES_TIMERS is not set +CONFIG_TICK_ONESHOT=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y CONFIG_SMP=y # CONFIG_X86_PC is not set # CONFIG_X86_ELAN is not set @@ -146,9 +146,11 @@ CONFIG_MPENTIUMIII=y # CONFIG_MGEODE_LX is not set # CONFIG_MCYRIXIII is not set # CONFIG_MVIAC3_2 is not set +# CONFIG_MVIAC7 is not set CONFIG_X86_GENERIC=y CONFIG_X86_CMPXCHG=y CONFIG_X86_L1_CACHE_SHIFT=7 +CONFIG_X86_XADD=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y # CONFIG_ARCH_HAS_ILOG2_U32 is not set # CONFIG_ARCH_HAS_ILOG2_U64 is not set @@ -162,6 +164,8 @@ CONFIG_X86_GOOD_APIC=y CONFIG_X86_INTEL_USERCOPY=y CONFIG_X86_USE_PPRO_CHECKSUM=y CONFIG_X86_TSC=y +CONFIG_X86_CMOV=y +CONFIG_X86_MINIMUM_CPU_MODEL=4 CONFIG_HPET_TIMER=y CONFIG_HPET_EMULATE_RTC=y CONFIG_NR_CPUS=32 @@ -248,7 +252,6 @@ CONFIG_ACPI_FAN=y CONFIG_ACPI_PROCESSOR=y CONFIG_ACPI_THERMAL=y # CONFIG_ACPI_ASUS is not set -# CONFIG_ACPI_IBM is not set # CONFIG_ACPI_TOSHIBA is not set CONFIG_ACPI_BLACKLIST_YEAR=2001 CONFIG_ACPI_DEBUG=y @@ -257,10 +260,7 @@ CONFIG_ACPI_POWER=y CONFIG_ACPI_SYSTEM=y CONFIG_X86_PM_TIMER=y # CONFIG_ACPI_CONTAINER is not set - -# -# APM (Advanced Power Management) BIOS Support -# +# CONFIG_ACPI_SBS is not set # CONFIG_APM is not set # @@ -277,7 +277,7 @@ CONFIG_CPU_FREQ_GOV_PERFORMANCE=y # CONFIG_CPU_FREQ_GOV_POWERSAVE is not set CONFIG_CPU_FREQ_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_ONDEMAND=y -# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set +CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y # # CPUFreq processor drivers @@ -349,7 +349,6 @@ CONFIG_NET=y # # Networking options # -# CONFIG_NETDEBUG is not set CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set CONFIG_UNIX=y @@ -388,6 +387,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" CONFIG_IPV6=y # CONFIG_IPV6_PRIVACY is not set # CONFIG_IPV6_ROUTER_PREF is not set +# CONFIG_IPV6_OPTIMISTIC_DAD is not set # CONFIG_INET6_AH is not set # CONFIG_INET6_ESP is not set # CONFIG_INET6_IPCOMP is not set @@ -443,6 +443,13 @@ CONFIG_IPV6_SIT=y # CONFIG_HAMRADIO is not set # CONFIG_IRDA is not set # CONFIG_BT is not set +# CONFIG_AF_RXRPC is not set + +# +# Wireless +# +# CONFIG_CFG80211 is not set +# CONFIG_WIRELESS_EXT is not set # CONFIG_IEEE80211 is not set # @@ -463,10 +470,6 @@ CONFIG_FW_LOADER=y # Connector - unified userspace <-> kernelspace linker # # CONFIG_CONNECTOR is not set - -# -# Memory Technology Devices (MTD) -# # CONFIG_MTD is not set # @@ -513,6 +516,7 @@ CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 # CONFIG_SGI_IOC4 is not set # CONFIG_TIFM_CORE is not set # CONFIG_SONY_LAPTOP is not set +# CONFIG_THINKPAD_ACPI is not set # # ATA/ATAPI/MFM/RLL support @@ -548,7 +552,6 @@ CONFIG_BLK_DEV_IDEPCI=y # CONFIG_BLK_DEV_RZ1000 is not set CONFIG_BLK_DEV_IDEDMA_PCI=y # CONFIG_BLK_DEV_IDEDMA_FORCED is not set -CONFIG_IDEDMA_PCI_AUTO=y # CONFIG_IDEDMA_ONLYDISK is not set # CONFIG_BLK_DEV_AEC62XX is not set # CONFIG_BLK_DEV_ALI15X3 is not set @@ -580,7 +583,6 @@ CONFIG_BLK_DEV_PIIX=y # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_IVB is not set -CONFIG_IDEDMA_AUTO=y # CONFIG_BLK_DEV_HD is not set # @@ -669,6 +671,7 @@ CONFIG_AIC79XX_DEBUG_MASK=0 # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_NSP32 is not set # CONFIG_SCSI_DEBUG is not set +# CONFIG_SCSI_ESP_CORE is not set # CONFIG_SCSI_SRP is not set # @@ -697,6 +700,7 @@ CONFIG_SATA_ACPI=y # CONFIG_PATA_AMD is not set # CONFIG_PATA_ARTOP is not set # CONFIG_PATA_ATIIXP is not set +# CONFIG_PATA_CMD640_PCI is not set # CONFIG_PATA_CMD64X is not set # CONFIG_PATA_CS5520 is not set # CONFIG_PATA_CS5530 is not set @@ -762,10 +766,9 @@ CONFIG_IEEE1394=y # Subsystem Options # # CONFIG_IEEE1394_VERBOSEDEBUG is not set -# CONFIG_IEEE1394_EXTRA_CONFIG_ROMS is not set # -# Device Drivers +# Controllers # # @@ -774,10 +777,11 @@ CONFIG_IEEE1394=y CONFIG_IEEE1394_OHCI1394=y # -# Protocol Drivers +# Protocols # # CONFIG_IEEE1394_VIDEO1394 is not set # CONFIG_IEEE1394_SBP2 is not set +# CONFIG_IEEE1394_ETH1394_ROM_ENTRY is not set # CONFIG_IEEE1394_ETH1394 is not set # CONFIG_IEEE1394_DV1394 is not set CONFIG_IEEE1394_RAWIO=y @@ -820,7 +824,9 @@ CONFIG_MII=y # CONFIG_HAPPYMEAL is not set # CONFIG_SUNGEM is not set # CONFIG_CASSINI is not set -# CONFIG_NET_VENDOR_3COM is not set +CONFIG_NET_VENDOR_3COM=y +CONFIG_VORTEX=y +# CONFIG_TYPHOON is not set # # Tulip family network device support @@ -901,9 +907,10 @@ CONFIG_BNX2=y # CONFIG_TR is not set # -# Wireless LAN (non-hamradio) +# Wireless LAN # -# CONFIG_NET_RADIO is not set +# CONFIG_WLAN_PRE80211 is not set +# CONFIG_WLAN_80211 is not set # # Wan interfaces @@ -917,7 +924,6 @@ CONFIG_BNX2=y # CONFIG_SHAPER is not set CONFIG_NETCONSOLE=y CONFIG_NETPOLL=y -# CONFIG_NETPOLL_RX is not set # CONFIG_NETPOLL_TRAP is not set CONFIG_NET_POLL_CONTROLLER=y @@ -1050,7 +1056,7 @@ CONFIG_MAX_RAW_DEVS=256 CONFIG_HPET=y # CONFIG_HPET_RTC_IRQ is not set CONFIG_HPET_MMAP=y -CONFIG_HANGCHECK_TIMER=y +# CONFIG_HANGCHECK_TIMER is not set # # TPM devices @@ -1142,6 +1148,14 @@ CONFIG_HID=y # CONFIG_HID_DEBUG is not set # +# USB Input Devices +# +CONFIG_USB_HID=y +# CONFIG_USB_HIDINPUT_POWERBOOK is not set +# CONFIG_HID_FF is not set +# CONFIG_USB_HIDDEV is not set + +# # USB support # CONFIG_USB_ARCH_HAS_HCD=y @@ -1154,6 +1168,7 @@ CONFIG_USB=y # Miscellaneous USB options # CONFIG_USB_DEVICEFS=y +# CONFIG_USB_DEVICE_CLASS is not set # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_SUSPEND is not set # CONFIG_USB_OTG is not set @@ -1204,10 +1219,6 @@ CONFIG_USB_STORAGE=y # # USB Input Devices # -CONFIG_USB_HID=y -# CONFIG_USB_HIDINPUT_POWERBOOK is not set -# CONFIG_HID_FF is not set -# CONFIG_USB_HIDDEV is not set # CONFIG_USB_AIPTEK is not set # CONFIG_USB_WACOM is not set # CONFIG_USB_ACECAD is not set @@ -1528,7 +1539,7 @@ CONFIG_DEBUG_KERNEL=y CONFIG_LOG_BUF_SHIFT=18 CONFIG_DETECT_SOFTLOCKUP=y # CONFIG_SCHEDSTATS is not set -# CONFIG_TIMER_STATS is not set +CONFIG_TIMER_STATS=y # CONFIG_DEBUG_SLAB is not set # CONFIG_DEBUG_RT_MUTEXES is not set # CONFIG_RT_MUTEX_TESTER is not set diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile index 4ae3dcf..4f98516 100644 --- a/arch/i386/kernel/Makefile +++ b/arch/i386/kernel/Makefile @@ -39,12 +39,10 @@ obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-$(CONFIG_HPET_TIMER) += hpet.o obj-$(CONFIG_K8_NB) += k8.o -obj-$(CONFIG_VMI) += vmi.o vmitime.o +obj-$(CONFIG_VMI) += vmi.o vmiclock.o obj-$(CONFIG_PARAVIRT) += paravirt.o obj-y += pcspeaker.o -EXTRA_AFLAGS := -traditional - obj-$(CONFIG_SCx200) += scx200.o # vsyscall.o contains the vsyscall DSO images as __initdata. diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index 9ea5b8e..280898b 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -874,7 +874,7 @@ static void __init acpi_process_madt(void) acpi_ioapic = 1; smp_found_config = 1; - clustered_apic_check(); + setup_apic_routing(); } } if (error == -EINVAL) { diff --git a/arch/i386/kernel/acpi/earlyquirk.c b/arch/i386/kernel/acpi/earlyquirk.c index 8f7efd3..23f78ef 100644 --- a/arch/i386/kernel/acpi/earlyquirk.c +++ b/arch/i386/kernel/acpi/earlyquirk.c @@ -10,7 +10,6 @@ #include <asm/pci-direct.h> #include <asm/acpi.h> #include <asm/apic.h> -#include <asm/irq.h> #ifdef CONFIG_ACPI @@ -48,24 +47,6 @@ static int __init check_bridge(int vendor, int device) return 0; } -static void check_intel(void) -{ - u16 vendor, device; - - vendor = read_pci_config_16(0, 0, 0, PCI_VENDOR_ID); - - if (vendor != PCI_VENDOR_ID_INTEL) - return; - - device = read_pci_config_16(0, 0, 0, PCI_DEVICE_ID); -#ifdef CONFIG_SMP - if (device == PCI_DEVICE_ID_INTEL_E7320_MCH || - device == PCI_DEVICE_ID_INTEL_E7520_MCH || - device == PCI_DEVICE_ID_INTEL_E7525_MCH) - quirk_intel_irqbalance(); -#endif -} - void __init check_acpi_pci(void) { int num, slot, func; @@ -77,8 +58,6 @@ void __init check_acpi_pci(void) if (!early_pci_allowed()) return; - check_intel(); - /* Poor man's PCI discovery */ for (num = 0; num < 32; num++) { for (slot = 0; slot < 32; slot++) { diff --git a/arch/i386/kernel/alternative.c b/arch/i386/kernel/alternative.c index 426f59b..d8cda14 100644 --- a/arch/i386/kernel/alternative.c +++ b/arch/i386/kernel/alternative.c @@ -5,6 +5,7 @@ #include <asm/alternative.h> #include <asm/sections.h> +static int noreplace_smp = 0; static int smp_alt_once = 0; static int debug_alternative = 0; @@ -13,15 +14,33 @@ static int __init bootonly(char *str) smp_alt_once = 1; return 1; } +__setup("smp-alt-boot", bootonly); + static int __init debug_alt(char *str) { debug_alternative = 1; return 1; } - -__setup("smp-alt-boot", bootonly); __setup("debug-alternative", debug_alt); +static int __init setup_noreplace_smp(char *str) +{ + noreplace_smp = 1; + return 1; +} +__setup("noreplace-smp", setup_noreplace_smp); + +#ifdef CONFIG_PARAVIRT +static int noreplace_paravirt = 0; + +static int __init setup_noreplace_paravirt(char *str) +{ + noreplace_paravirt = 1; + return 1; +} +__setup("noreplace-paravirt", setup_noreplace_paravirt); +#endif + #define DPRINTK(fmt, args...) if (debug_alternative) \ printk(KERN_DEBUG fmt, args) @@ -132,11 +151,8 @@ static void nop_out(void *insns, unsigned int len) } extern struct alt_instr __alt_instructions[], __alt_instructions_end[]; -extern struct alt_instr __smp_alt_instructions[], __smp_alt_instructions_end[]; extern u8 *__smp_locks[], *__smp_locks_end[]; -extern u8 __smp_alt_begin[], __smp_alt_end[]; - /* Replace instructions with better alternatives for this CPU type. This runs before SMP is initialized to avoid SMP problems with self modifying code. This implies that assymetric systems where @@ -171,29 +187,6 @@ void apply_alternatives(struct alt_instr *start, struct alt_instr *end) #ifdef CONFIG_SMP -static void alternatives_smp_save(struct alt_instr *start, struct alt_instr *end) -{ - struct alt_instr *a; - - DPRINTK("%s: alt table %p-%p\n", __FUNCTION__, start, end); - for (a = start; a < end; a++) { - memcpy(a->replacement + a->replacementlen, - a->instr, - a->instrlen); - } -} - -static void alternatives_smp_apply(struct alt_instr *start, struct alt_instr *end) -{ - struct alt_instr *a; - - for (a = start; a < end; a++) { - memcpy(a->instr, - a->replacement + a->replacementlen, - a->instrlen); - } -} - static void alternatives_smp_lock(u8 **start, u8 **end, u8 *text, u8 *text_end) { u8 **ptr; @@ -211,6 +204,9 @@ static void alternatives_smp_unlock(u8 **start, u8 **end, u8 *text, u8 *text_end { u8 **ptr; + if (noreplace_smp) + return; + for (ptr = start; ptr < end; ptr++) { if (*ptr < text) continue; @@ -245,6 +241,9 @@ void alternatives_smp_module_add(struct module *mod, char *name, struct smp_alt_module *smp; unsigned long flags; + if (noreplace_smp) + return; + if (smp_alt_once) { if (boot_cpu_has(X86_FEATURE_UP)) alternatives_smp_unlock(locks, locks_end, @@ -279,7 +278,7 @@ void alternatives_smp_module_del(struct module *mod) struct smp_alt_module *item; unsigned long flags; - if (smp_alt_once) + if (smp_alt_once || noreplace_smp) return; spin_lock_irqsave(&smp_alt, flags); @@ -310,7 +309,7 @@ void alternatives_smp_switch(int smp) return; #endif - if (smp_alt_once) + if (noreplace_smp || smp_alt_once) return; BUG_ON(!smp && (num_online_cpus() > 1)); @@ -319,8 +318,6 @@ void alternatives_smp_switch(int smp) printk(KERN_INFO "SMP alternatives: switching to SMP code\n"); clear_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability); clear_bit(X86_FEATURE_UP, cpu_data[0].x86_capability); - alternatives_smp_apply(__smp_alt_instructions, - __smp_alt_instructions_end); list_for_each_entry(mod, &smp_alt_modules, next) alternatives_smp_lock(mod->locks, mod->locks_end, mod->text, mod->text_end); @@ -328,8 +325,6 @@ void alternatives_smp_switch(int smp) printk(KERN_INFO "SMP alternatives: switching to UP code\n"); set_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability); set_bit(X86_FEATURE_UP, cpu_data[0].x86_capability); - apply_alternatives(__smp_alt_instructions, - __smp_alt_instructions_end); list_for_each_entry(mod, &smp_alt_modules, next) alternatives_smp_unlock(mod->locks, mod->locks_end, mod->text, mod->text_end); @@ -340,36 +335,31 @@ void alternatives_smp_switch(int smp) #endif #ifdef CONFIG_PARAVIRT -void apply_paravirt(struct paravirt_patch *start, struct paravirt_patch *end) +void apply_paravirt(struct paravirt_patch_site *start, + struct paravirt_patch_site *end) { - struct paravirt_patch *p; + struct paravirt_patch_site *p; + + if (noreplace_paravirt) + return; for (p = start; p < end; p++) { unsigned int used; used = paravirt_ops.patch(p->instrtype, p->clobbers, p->instr, p->len); -#ifdef CONFIG_DEBUG_PARAVIRT - { - int i; - /* Deliberately clobber regs using "not %reg" to find bugs. */ - for (i = 0; i < 3; i++) { - if (p->len - used >= 2 && (p->clobbers & (1 << i))) { - memcpy(p->instr + used, "\xf7\xd0", 2); - p->instr[used+1] |= i; - used += 2; - } - } - } -#endif + + BUG_ON(used > p->len); + /* Pad the rest with nops */ nop_out(p->instr + used, p->len - used); } - /* Sync to be conservative, in case we patched following instructions */ + /* Sync to be conservative, in case we patched following + * instructions */ sync_core(); } -extern struct paravirt_patch __start_parainstructions[], +extern struct paravirt_patch_site __start_parainstructions[], __stop_parainstructions[]; #endif /* CONFIG_PARAVIRT */ @@ -396,23 +386,19 @@ void __init alternative_instructions(void) printk(KERN_INFO "SMP alternatives: switching to UP code\n"); set_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability); set_bit(X86_FEATURE_UP, cpu_data[0].x86_capability); - apply_alternatives(__smp_alt_instructions, - __smp_alt_instructions_end); alternatives_smp_unlock(__smp_locks, __smp_locks_end, _text, _etext); } free_init_pages("SMP alternatives", - (unsigned long)__smp_alt_begin, - (unsigned long)__smp_alt_end); + (unsigned long)__smp_locks, + (unsigned long)__smp_locks_end); } else { - alternatives_smp_save(__smp_alt_instructions, - __smp_alt_instructions_end); alternatives_smp_module_add(NULL, "core kernel", __smp_locks, __smp_locks_end, _text, _etext); alternatives_smp_switch(0); } #endif - apply_paravirt(__start_parainstructions, __stop_parainstructions); + apply_paravirt(__parainstructions, __parainstructions_end); local_irq_restore(flags); } diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c index 93aa911..aca054cc 100644 --- a/arch/i386/kernel/apic.c +++ b/arch/i386/kernel/apic.c @@ -129,6 +129,28 @@ static int modern_apic(void) return lapic_get_version() >= 0x14; } +void apic_wait_icr_idle(void) +{ + while (apic_read(APIC_ICR) & APIC_ICR_BUSY) + cpu_relax(); +} + +unsigned long safe_apic_wait_icr_idle(void) +{ + unsigned long send_status; + int timeout; + + timeout = 0; + do { + send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY; + if (!send_status) + break; + udelay(100); + } while (timeout++ < 1000); + + return send_status; +} + /** * enable_NMI_through_LVT0 - enable NMI through local vector table 0 */ diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c index 064bbf2..367ff1d 100644 --- a/arch/i386/kernel/apm.c +++ b/arch/i386/kernel/apm.c @@ -233,11 +233,10 @@ #include <asm/desc.h> #include <asm/i8253.h> #include <asm/paravirt.h> +#include <asm/reboot.h> #include "io_ports.h" -extern void machine_real_restart(unsigned char *, int); - #if defined(CONFIG_APM_DISPLAY_BLANK) && defined(CONFIG_VT) extern int (*console_blank_hook)(int); #endif @@ -384,13 +383,6 @@ static int ignore_sys_suspend; static int ignore_normal_resume; static int bounce_interval __read_mostly = DEFAULT_BOUNCE_INTERVAL; -#ifdef CONFIG_APM_RTC_IS_GMT -# define clock_cmos_diff 0 -# define got_clock_diff 1 -#else -static long clock_cmos_diff; -static int got_clock_diff; -#endif static int debug __read_mostly; static int smp __read_mostly; static int apm_disabled = -1; diff --git a/arch/i386/kernel/asm-offsets.c b/arch/i386/kernel/asm-offsets.c index c375351..27a776c 100644 --- a/arch/i386/kernel/asm-offsets.c +++ b/arch/i386/kernel/asm-offsets.c @@ -11,11 +11,11 @@ #include <linux/suspend.h> #include <asm/ucontext.h> #include "sigframe.h" +#include <asm/pgtable.h> #include <asm/fixmap.h> #include <asm/processor.h> #include <asm/thread_info.h> #include <asm/elf.h> -#include <asm/pda.h> #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) @@ -25,6 +25,9 @@ #define OFFSET(sym, str, mem) \ DEFINE(sym, offsetof(struct str, mem)); +/* workaround for a warning with -Wmissing-prototypes */ +void foo(void); + void foo(void) { OFFSET(SIGCONTEXT_eax, sigcontext, eax); @@ -90,17 +93,18 @@ void foo(void) OFFSET(pbe_next, pbe, next); /* Offset from the sysenter stack to tss.esp0 */ - DEFINE(TSS_sysenter_esp0, offsetof(struct tss_struct, esp0) - + DEFINE(TSS_sysenter_esp0, offsetof(struct tss_struct, x86_tss.esp0) - sizeof(struct tss_struct)); DEFINE(PAGE_SIZE_asm, PAGE_SIZE); - DEFINE(VDSO_PRELINK, VDSO_PRELINK); + DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT); + DEFINE(PTRS_PER_PTE, PTRS_PER_PTE); + DEFINE(PTRS_PER_PMD, PTRS_PER_PMD); + DEFINE(PTRS_PER_PGD, PTRS_PER_PGD); - OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); + DEFINE(VDSO_PRELINK_asm, VDSO_PRELINK); - BLANK(); - OFFSET(PDA_cpu, i386_pda, cpu_number); - OFFSET(PDA_pcurrent, i386_pda, pcurrent); + OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); #ifdef CONFIG_PARAVIRT BLANK(); diff --git a/arch/i386/kernel/cpu/Makefile b/arch/i386/kernel/cpu/Makefile index 010aecf..74f27a4 100644 --- a/arch/i386/kernel/cpu/Makefile +++ b/arch/i386/kernel/cpu/Makefile @@ -2,7 +2,7 @@ # Makefile for x86-compatible CPU details and quirks # -obj-y := common.o proc.o +obj-y := common.o proc.o bugs.o obj-y += amd.o obj-y += cyrix.o @@ -17,3 +17,5 @@ obj-$(CONFIG_X86_MCE) += mcheck/ obj-$(CONFIG_MTRR) += mtrr/ obj-$(CONFIG_CPU_FREQ) += cpufreq/ + +obj-$(CONFIG_X86_LOCAL_APIC) += perfctr-watchdog.o diff --git a/arch/i386/kernel/cpu/amd.c b/arch/i386/kernel/cpu/amd.c index 2d47db4..4fec702 100644 --- a/arch/i386/kernel/cpu/amd.c +++ b/arch/i386/kernel/cpu/amd.c @@ -53,6 +53,8 @@ static __cpuinit int amd_apic_timer_broken(void) return 0; } +int force_mwait __cpuinitdata; + static void __cpuinit init_amd(struct cpuinfo_x86 *c) { u32 l, h; @@ -275,6 +277,9 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) if (amd_apic_timer_broken()) set_bit(X86_FEATURE_LAPIC_TIMER_BROKEN, c->x86_capability); + + if (c->x86 == 0x10 && !force_mwait) + clear_bit(X86_FEATURE_MWAIT, c->x86_capability); } static unsigned int __cpuinit amd_size_cache(struct cpuinfo_x86 * c, unsigned int size) @@ -314,13 +319,3 @@ int __init amd_init_cpu(void) cpu_devs[X86_VENDOR_AMD] = &amd_cpu_dev; return 0; } - -//early_arch_initcall(amd_init_cpu); - -static int __init amd_exit_cpu(void) -{ - cpu_devs[X86_VENDOR_AMD] = NULL; - return 0; -} - -late_initcall(amd_exit_cpu); diff --git a/arch/i386/kernel/cpu/bugs.c b/arch/i386/kernel/cpu/bugs.c new file mode 100644 index 0000000..54428a2 --- /dev/null +++ b/arch/i386/kernel/cpu/bugs.c @@ -0,0 +1,191 @@ +/* + * arch/i386/cpu/bugs.c + * + * Copyright (C) 1994 Linus Torvalds + * + * Cyrix stuff, June 1998 by: + * - Rafael R. Reilova (moved everything from head.S), + * <rreilova@ececs.uc.edu> + * - Channing Corn (tests & fixes), + * - Andrew D. Balsa (code cleanup). + */ +#include <linux/init.h> +#include <linux/utsname.h> +#include <asm/processor.h> +#include <asm/i387.h> +#include <asm/msr.h> +#include <asm/paravirt.h> +#include <asm/alternative.h> + +static int __init no_halt(char *s) +{ + boot_cpu_data.hlt_works_ok = 0; + return 1; +} + +__setup("no-hlt", no_halt); + +static int __init mca_pentium(char *s) +{ + mca_pentium_flag = 1; + return 1; +} + +__setup("mca-pentium", mca_pentium); + +static int __init no_387(char *s) +{ + boot_cpu_data.hard_math = 0; + write_cr0(0xE | read_cr0()); + return 1; +} + +__setup("no387", no_387); + +static double __initdata x = 4195835.0; +static double __initdata y = 3145727.0; + +/* + * This used to check for exceptions.. + * However, it turns out that to support that, + * the XMM trap handlers basically had to + * be buggy. So let's have a correct XMM trap + * handler, and forget about printing out + * some status at boot. + * + * We should really only care about bugs here + * anyway. Not features. + */ +static void __init check_fpu(void) +{ + if (!boot_cpu_data.hard_math) { +#ifndef CONFIG_MATH_EMULATION + printk(KERN_EMERG "No coprocessor found and no math emulation present.\n"); + printk(KERN_EMERG "Giving up.\n"); + for (;;) ; +#endif + return; + } + +/* trap_init() enabled FXSR and company _before_ testing for FP problems here. */ + /* Test for the divl bug.. */ + __asm__("fninit\n\t" + "fldl %1\n\t" + "fdivl %2\n\t" + "fmull %2\n\t" + "fldl %1\n\t" + "fsubp %%st,%%st(1)\n\t" + "fistpl %0\n\t" + "fwait\n\t" + "fninit" + : "=m" (*&boot_cpu_data.fdiv_bug) + : "m" (*&x), "m" (*&y)); + if (boot_cpu_data.fdiv_bug) + printk("Hmm, FPU with FDIV bug.\n"); +} + +static void __init check_hlt(void) +{ + if (paravirt_enabled()) + return; + + printk(KERN_INFO "Checking 'hlt' instruction... "); + if (!boot_cpu_data.hlt_works_ok) { + printk("disabled\n"); + return; + } + halt(); + halt(); + halt(); + halt(); + printk("OK.\n"); +} + +/* + * Most 386 processors have a bug where a POPAD can lock the + * machine even from user space. + */ + +static void __init check_popad(void) +{ +#ifndef CONFIG_X86_POPAD_OK + int res, inp = (int) &res; + + printk(KERN_INFO "Checking for popad bug... "); + __asm__ __volatile__( + "movl $12345678,%%eax; movl $0,%%edi; pusha; popa; movl (%%edx,%%edi),%%ecx " + : "=&a" (res) + : "d" (inp) + : "ecx", "edi" ); + /* If this fails, it means that any user program may lock the CPU hard. Too bad. */ + if (res != 12345678) printk( "Buggy.\n" ); + else printk( "OK.\n" ); +#endif +} + +/* + * Check whether we are able to run this kernel safely on SMP. + * + * - In order to run on a i386, we need to be compiled for i386 + * (for due to lack of "invlpg" and working WP on a i386) + * - In order to run on anything without a TSC, we need to be + * compiled for a i486. + * - In order to support the local APIC on a buggy Pentium machine, + * we need to be compiled with CONFIG_X86_GOOD_APIC disabled, + * which happens implicitly if compiled for a Pentium or lower + * (unless an advanced selection of CPU features is used) as an + * otherwise config implies a properly working local APIC without + * the need to do extra reads from the APIC. +*/ + +static void __init check_config(void) +{ +/* + * We'd better not be a i386 if we're configured to use some + * i486+ only features! (WP works in supervisor mode and the + * new "invlpg" and "bswap" instructions) + */ +#if defined(CONFIG_X86_WP_WORKS_OK) || defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_BSWAP) + if (boot_cpu_data.x86 == 3) + panic("Kernel requires i486+ for 'invlpg' and other features"); +#endif + +/* + * If we configured ourselves for a TSC, we'd better have one! + */ +#ifdef CONFIG_X86_TSC + if (!cpu_has_tsc && !tsc_disable) + panic("Kernel compiled for Pentium+, requires TSC feature!"); +#endif + +/* + * If we were told we had a good local APIC, check for buggy Pentia, + * i.e. all B steppings and the C2 stepping of P54C when using their + * integrated APIC (see 11AP erratum in "Pentium Processor + * Specification Update"). + */ +#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86_GOOD_APIC) + if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL + && cpu_has_apic + && boot_cpu_data.x86 == 5 + && boot_cpu_data.x86_model == 2 + && (boot_cpu_data.x86_mask < 6 || boot_cpu_data.x86_mask == 11)) + panic("Kernel compiled for PMMX+, assumes a local APIC without the read-before-write bug!"); +#endif +} + + +void __init check_bugs(void) +{ + identify_boot_cpu(); +#ifndef CONFIG_SMP + printk("CPU: "); + print_cpu_info(&boot_cpu_data); +#endif + check_config(); + check_fpu(); + check_hlt(); + check_popad(); + init_utsname()->machine[1] = '0' + (boot_cpu_data.x86 > 6 ? 6 : boot_cpu_data.x86); + alternative_instructions(); +} diff --git a/arch/i386/kernel/cpu/centaur.c b/arch/i386/kernel/cpu/centaur.c index 8c25047..473eac8 100644 --- a/arch/i386/kernel/cpu/centaur.c +++ b/arch/i386/kernel/cpu/centaur.c @@ -469,13 +469,3 @@ int __init centaur_init_cpu(void) cpu_devs[X86_VENDOR_CENTAUR] = ¢aur_cpu_dev; return 0; } - -//early_arch_initcall(centaur_init_cpu); - -static int __init centaur_exit_cpu(void) -{ - cpu_devs[X86_VENDOR_CENTAUR] = NULL; - return 0; -} - -late_initcall(centaur_exit_cpu); diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c index dcbbd0a..794d593 100644 --- a/arch/i386/kernel/cpu/common.c +++ b/arch/i386/kernel/cpu/common.c @@ -18,15 +18,37 @@ #include <asm/apic.h> #include <mach_apic.h> #endif -#include <asm/pda.h> #include "cpu.h" -DEFINE_PER_CPU(struct Xgt_desc_struct, cpu_gdt_descr); -EXPORT_PER_CPU_SYMBOL(cpu_gdt_descr); +DEFINE_PER_CPU(struct gdt_page, gdt_page) = { .gdt = { + [GDT_ENTRY_KERNEL_CS] = { 0x0000ffff, 0x00cf9a00 }, + [GDT_ENTRY_KERNEL_DS] = { 0x0000ffff, 0x00cf9200 }, + [GDT_ENTRY_DEFAULT_USER_CS] = { 0x0000ffff, 0x00cffa00 }, + [GDT_ENTRY_DEFAULT_USER_DS] = { 0x0000ffff, 0x00cff200 }, + /* + * Segments used for calling PnP BIOS have byte granularity. + * They code segments and data segments have fixed 64k limits, + * the transfer segment sizes are set at run time. + */ + [GDT_ENTRY_PNPBIOS_CS32] = { 0x0000ffff, 0x00409a00 },/* 32-bit code */ + [GDT_ENTRY_PNPBIOS_CS16] = { 0x0000ffff, 0x00009a00 },/* 16-bit code */ + [GDT_ENTRY_PNPBIOS_DS] = { 0x0000ffff, 0x00009200 }, /* 16-bit data */ + [GDT_ENTRY_PNPBIOS_TS1] = { 0x00000000, 0x00009200 },/* 16-bit data */ + [GDT_ENTRY_PNPBIOS_TS2] = { 0x00000000, 0x00009200 },/* 16-bit data */ + /* + * The APM segments have byte granularity and their bases + * are set at run time. All have 64k limits. + */ + [GDT_ENTRY_APMBIOS_BASE] = { 0x0000ffff, 0x00409a00 },/* 32-bit code */ + /* 16-bit code */ + [GDT_ENTRY_APMBIOS_BASE+1] = { 0x0000ffff, 0x00009a00 }, + [GDT_ENTRY_APMBIOS_BASE+2] = { 0x0000ffff, 0x00409200 }, /* data */ -struct i386_pda *_cpu_pda[NR_CPUS] __read_mostly; -EXPORT_SYMBOL(_cpu_pda); + [GDT_ENTRY_ESPFIX_SS] = { 0x00000000, 0x00c09200 }, + [GDT_ENTRY_PERCPU] = { 0x00000000, 0x00000000 }, +} }; +EXPORT_PER_CPU_SYMBOL_GPL(gdt_page); static int cachesize_override __cpuinitdata = -1; static int disable_x86_fxsr __cpuinitdata; @@ -368,7 +390,7 @@ __setup("serialnumber", x86_serial_nr_setup); /* * This does the hard work of actually picking apart the CPU stuff... */ -void __cpuinit identify_cpu(struct cpuinfo_x86 *c) +static void __cpuinit identify_cpu(struct cpuinfo_x86 *c) { int i; @@ -479,15 +501,22 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c) /* Init Machine Check Exception if available. */ mcheck_init(c); +} - if (c == &boot_cpu_data) - sysenter_setup(); +void __init identify_boot_cpu(void) +{ + identify_cpu(&boot_cpu_data); + sysenter_setup(); enable_sep_cpu(); + mtrr_bp_init(); +} - if (c == &boot_cpu_data) - mtrr_bp_init(); - else - mtrr_ap_init(); +void __cpuinit identify_secondary_cpu(struct cpuinfo_x86 *c) +{ + BUG_ON(c == &boot_cpu_data); + identify_cpu(c); + enable_sep_cpu(); + mtrr_ap_init(); } #ifdef CONFIG_X86_HT @@ -601,129 +630,36 @@ void __init early_cpu_init(void) #endif } -/* Make sure %gs is initialized properly in idle threads */ +/* Make sure %fs is initialized properly in idle threads */ struct pt_regs * __devinit idle_regs(struct pt_regs *regs) { memset(regs, 0, sizeof(struct pt_regs)); - regs->xfs = __KERNEL_PDA; + regs->xfs = __KERNEL_PERCPU; return regs; } -static __cpuinit int alloc_gdt(int cpu) +/* Current gdt points %fs at the "master" per-cpu area: after this, + * it's on the real one. */ +void switch_to_new_gdt(void) { - struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, cpu); - struct desc_struct *gdt; - struct i386_pda *pda; - - gdt = (struct desc_struct *)cpu_gdt_descr->address; - pda = cpu_pda(cpu); - - /* - * This is a horrible hack to allocate the GDT. The problem - * is that cpu_init() is called really early for the boot CPU - * (and hence needs bootmem) but much later for the secondary - * CPUs, when bootmem will have gone away - */ - if (NODE_DATA(0)->bdata->node_bootmem_map) { - BUG_ON(gdt != NULL || pda != NULL); - - gdt = alloc_bootmem_pages(PAGE_SIZE); - pda = alloc_bootmem(sizeof(*pda)); - /* alloc_bootmem(_pages) panics on failure, so no check */ - - memset(gdt, 0, PAGE_SIZE); - memset(pda, 0, sizeof(*pda)); - } else { - /* GDT and PDA might already have been allocated if - this is a CPU hotplug re-insertion. */ - if (gdt == NULL) - gdt = (struct desc_struct *)get_zeroed_page(GFP_KERNEL); - - if (pda == NULL) - pda = kmalloc_node(sizeof(*pda), GFP_KERNEL, cpu_to_node(cpu)); - - if (unlikely(!gdt || !pda)) { - free_pages((unsigned long)gdt, 0); - kfree(pda); - return 0; - } - } - - cpu_gdt_descr->address = (unsigned long)gdt; - cpu_pda(cpu) = pda; - - return 1; -} + struct Xgt_desc_struct gdt_descr; -/* Initial PDA used by boot CPU */ -struct i386_pda boot_pda = { - ._pda = &boot_pda, - .cpu_number = 0, - .pcurrent = &init_task, -}; - -static inline void set_kernel_fs(void) -{ - /* Set %fs for this CPU's PDA. Memory clobber is to create a - barrier with respect to any PDA operations, so the compiler - doesn't move any before here. */ - asm volatile ("mov %0, %%fs" : : "r" (__KERNEL_PDA) : "memory"); + gdt_descr.address = (long)get_cpu_gdt_table(smp_processor_id()); + gdt_descr.size = GDT_SIZE - 1; + load_gdt(&gdt_descr); + asm("mov %0, %%fs" : : "r" (__KERNEL_PERCPU) : "memory"); } -/* Initialize the CPU's GDT and PDA. The boot CPU does this for - itself, but secondaries find this done for them. */ -__cpuinit int init_gdt(int cpu, struct task_struct *idle) -{ - struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, cpu); - struct desc_struct *gdt; - struct i386_pda *pda; - - /* For non-boot CPUs, the GDT and PDA should already have been - allocated. */ - if (!alloc_gdt(cpu)) { - printk(KERN_CRIT "CPU%d failed to allocate GDT or PDA\n", cpu); - return 0; - } - - gdt = (struct desc_struct *)cpu_gdt_descr->address; - pda = cpu_pda(cpu); - - BUG_ON(gdt == NULL || pda == NULL); - - /* - * Initialize the per-CPU GDT with the boot GDT, - * and set up the GDT descriptor: - */ - memcpy(gdt, cpu_gdt_table, GDT_SIZE); - cpu_gdt_descr->size = GDT_SIZE - 1; - - pack_descriptor((u32 *)&gdt[GDT_ENTRY_PDA].a, - (u32 *)&gdt[GDT_ENTRY_PDA].b, - (unsigned long)pda, sizeof(*pda) - 1, - 0x80 | DESCTYPE_S | 0x2, 0); /* present read-write data segment */ - - memset(pda, 0, sizeof(*pda)); - pda->_pda = pda; - pda->cpu_number = cpu; - pda->pcurrent = idle; - - return 1; -} - -void __cpuinit cpu_set_gdt(int cpu) -{ - struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, cpu); - - /* Reinit these anyway, even if they've already been done (on - the boot CPU, this will transition from the boot gdt+pda to - the real ones). */ - load_gdt(cpu_gdt_descr); - set_kernel_fs(); -} - -/* Common CPU init for both boot and secondary CPUs */ -static void __cpuinit _cpu_init(int cpu, struct task_struct *curr) +/* + * cpu_init() initializes state that is per-CPU. Some data is already + * initialized (naturally) in the bootstrap process, such as the GDT + * and IDT. We reload them nevertheless, this function acts as a + * 'CPU state barrier', nothing should get across. + */ +void __cpuinit cpu_init(void) { + int cpu = smp_processor_id(); + struct task_struct *curr = current; struct tss_struct * t = &per_cpu(init_tss, cpu); struct thread_struct *thread = &curr->thread; @@ -744,6 +680,7 @@ static void __cpuinit _cpu_init(int cpu, struct task_struct *curr) } load_idt(&idt_descr); + switch_to_new_gdt(); /* * Set up and load the per-CPU TSS and LDT @@ -783,38 +720,6 @@ static void __cpuinit _cpu_init(int cpu, struct task_struct *curr) mxcsr_feature_mask_init(); } -/* Entrypoint to initialize secondary CPU */ -void __cpuinit secondary_cpu_init(void) -{ - int cpu = smp_processor_id(); - struct task_struct *curr = current; - - _cpu_init(cpu, curr); -} - -/* - * cpu_init() initializes state that is per-CPU. Some data is already - * initialized (naturally) in the bootstrap process, such as the GDT - * and IDT. We reload them nevertheless, this function acts as a - * 'CPU state barrier', nothing should get across. - */ -void __cpuinit cpu_init(void) -{ - int cpu = smp_processor_id(); - struct task_struct *curr = current; - - /* Set up the real GDT and PDA, so we can transition from the - boot versions. */ - if (!init_gdt(cpu, curr)) { - /* failed to allocate something; not much we can do... */ - for (;;) - local_irq_enable(); - } - - cpu_set_gdt(cpu); - _cpu_init(cpu, curr); -} - #ifdef CONFIG_HOTPLUG_CPU void __cpuinit cpu_uninit(void) { diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.c b/arch/i386/kernel/cpu/cpufreq/longhaul.c index 2b030d6..a3df9c0 100644 --- a/arch/i386/kernel/cpu/cpufreq/longhaul.c +++ b/arch/i386/kernel/cpu/cpufreq/longhaul.c @@ -590,20 +590,23 @@ static acpi_status longhaul_walk_callback(acpi_handle obj_handle, static int enable_arbiter_disable(void) { struct pci_dev *dev; + int status; int reg; u8 pci_cmd; + status = 1; /* Find PLE133 host bridge */ reg = 0x78; - dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8601_0, NULL); + dev = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8601_0, + NULL); /* Find CLE266 host bridge */ if (dev == NULL) { reg = 0x76; - dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_862X_0, NULL); + dev = pci_get_device(PCI_VENDOR_ID_VIA, + PCI_DEVICE_ID_VIA_862X_0, NULL); /* Find CN400 V-Link host bridge */ if (dev == NULL) - dev = pci_find_device(PCI_VENDOR_ID_VIA, 0x7259, NULL); - + dev = pci_get_device(PCI_VENDOR_ID_VIA, 0x7259, NULL); } if (dev != NULL) { /* Enable access to port 0x22 */ @@ -615,10 +618,11 @@ static int enable_arbiter_disable(void) if (!(pci_cmd & 1<<7)) { printk(KERN_ERR PFX "Can't enable access to port 0x22.\n"); - return 0; + status = 0; } } - return 1; + pci_dev_put(dev); + return status; } return 0; } @@ -629,7 +633,7 @@ static int longhaul_setup_vt8235(void) u8 pci_cmd; /* Find VT8235 southbridge */ - dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, NULL); + dev = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, NULL); if (dev != NULL) { /* Set transition time to max */ pci_read_config_byte(dev, 0xec, &pci_cmd); @@ -641,6 +645,7 @@ static int longhaul_setup_vt8235(void) pci_read_config_byte(dev, 0xe5, &pci_cmd); pci_cmd |= 1 << 7; pci_write_config_byte(dev, 0xe5, pci_cmd); + pci_dev_put(dev); return 1; } return 0; @@ -678,7 +683,7 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy) sizeof(samuel2_eblcr)); break; case 1 ... 15: - longhaul_version = TYPE_LONGHAUL_V2; + longhaul_version = TYPE_LONGHAUL_V1; if (c->x86_mask < 8) { cpu_model = CPU_SAMUEL2; cpuname = "C3 'Samuel 2' [C5B]"; diff --git a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c index 4786fed..4c76b51 100644 --- a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c +++ b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c @@ -27,7 +27,6 @@ #include <linux/cpufreq.h> #include <linux/slab.h> #include <linux/cpumask.h> -#include <linux/sched.h> /* current / set_cpus_allowed() */ #include <asm/processor.h> #include <asm/msr.h> @@ -62,7 +61,7 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate) if (!cpu_online(cpu) || (newstate > DC_DISABLE) || (newstate == DC_RESV)) return -EINVAL; - rdmsr(MSR_IA32_THERM_STATUS, l, h); + rdmsr_on_cpu(cpu, MSR_IA32_THERM_STATUS, &l, &h); if (l & 0x01) dprintk("CPU#%d currently thermal throttled\n", cpu); @@ -70,10 +69,10 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate) if (has_N44_O17_errata[cpu] && (newstate == DC_25PT || newstate == DC_DFLT)) newstate = DC_38PT; - rdmsr(MSR_IA32_THERM_CONTROL, l, h); + rdmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL, &l, &h); if (newstate == DC_DISABLE) { dprintk("CPU#%d disabling modulation\n", cpu); - wrmsr(MSR_IA32_THERM_CONTROL, l & ~(1<<4), h); + wrmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL, l & ~(1<<4), h); } else { dprintk("CPU#%d setting duty cycle to %d%%\n", cpu, ((125 * newstate) / 10)); @@ -84,7 +83,7 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate) */ l = (l & ~14); l = l | (1<<4) | ((newstate & 0x7)<<1); - wrmsr(MSR_IA32_THERM_CONTROL, l, h); + wrmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL, l, h); } return 0; @@ -111,7 +110,6 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy, { unsigned int newstate = DC_RESV; struct cpufreq_freqs freqs; - cpumask_t cpus_allowed; int i; if (cpufreq_frequency_table_target(policy, &p4clockmod_table[0], target_freq, relation, &newstate)) @@ -132,17 +130,8 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy, /* run on each logical CPU, see section 13.15.3 of IA32 Intel Architecture Software * Developer's Manual, Volume 3 */ - cpus_allowed = current->cpus_allowed; - - for_each_cpu_mask(i, policy->cpus) { - cpumask_t this_cpu = cpumask_of_cpu(i); - - set_cpus_allowed(current, this_cpu); - BUG_ON(smp_processor_id() != i); - + for_each_cpu_mask(i, policy->cpus) cpufreq_p4_setdc(i, p4clockmod_table[newstate].index); - } - set_cpus_allowed(current, cpus_allowed); /* notifiers */ for_each_cpu_mask(i, policy->cpus) { @@ -256,17 +245,9 @@ static int cpufreq_p4_cpu_exit(struct cpufreq_policy *policy) static unsigned int cpufreq_p4_get(unsigned int cpu) { - cpumask_t cpus_allowed; u32 l, h; - cpus_allowed = current->cpus_allowed; - - set_cpus_allowed(current, cpumask_of_cpu(cpu)); - BUG_ON(smp_processor_id() != cpu); - - rdmsr(MSR_IA32_THERM_CONTROL, l, h); - - set_cpus_allowed(current, cpus_allowed); + rdmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL, &l, &h); if (l & 0x10) { l = l >> 1; diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c index fe3b670..7cf3d20 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c @@ -661,7 +661,8 @@ static int fill_powernow_table(struct powernow_k8_data *data, struct pst_s *pst, dprintk("cfid 0x%x, cvid 0x%x\n", data->currfid, data->currvid); data->powernow_table = powernow_table; - print_basics(data); + if (first_cpu(cpu_core_map[data->cpu]) == data->cpu) + print_basics(data); for (j = 0; j < data->numps; j++) if ((pst[j].fid==data->currfid) && (pst[j].vid==data->currvid)) @@ -814,7 +815,8 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) /* fill in data */ data->numps = data->acpi_data.state_count; - print_basics(data); + if (first_cpu(cpu_core_map[data->cpu]) == data->cpu) + print_basics(data); powernow_k8_acpi_pst_values(data, 0); /* notify BIOS that we exist */ diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h index 0fb2a30..95be501 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h @@ -215,8 +215,10 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid); static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned int index); +#ifdef CONFIG_X86_POWERNOW_K8_ACPI static int fill_powernow_table_pstate(struct powernow_k8_data *data, struct cpufreq_frequency_table *powernow_table); static int fill_powernow_table_fidvid(struct powernow_k8_data *data, struct cpufreq_frequency_table *powernow_table); +#endif #ifdef CONFIG_SMP static inline void define_siblings(int cpu, cpumask_t cpu_sharedcore_mask[]) diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c index f43b987..35489fd 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c @@ -720,6 +720,7 @@ static int centrino_target (struct cpufreq_policy *policy, cpu_set(j, set_mask); set_cpus_allowed(current, set_mask); + preempt_disable(); if (unlikely(!cpu_isset(smp_processor_id(), set_mask))) { dprintk("couldn't limit to CPUs in this domain\n"); retval = -EAGAIN; @@ -727,6 +728,7 @@ static int centrino_target (struct cpufreq_policy *policy, /* We haven't started the transition yet. */ goto migrate_end; } + preempt_enable(); break; } @@ -761,10 +763,13 @@ static int centrino_target (struct cpufreq_policy *policy, } wrmsr(MSR_IA32_PERF_CTL, oldmsr, h); - if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) + if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) { + preempt_enable(); break; + } cpu_set(j, covered_cpus); + preempt_enable(); } for_each_cpu_mask(k, online_policy_cpus) { @@ -796,8 +801,11 @@ static int centrino_target (struct cpufreq_policy *policy, cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); } } + set_cpus_allowed(current, saved_mask); + return 0; migrate_end: + preempt_enable(); set_cpus_allowed(current, saved_mask); return 0; } diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c index d59277c..b1acc8c 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c @@ -13,7 +13,6 @@ #include <linux/moduleparam.h> #include <linux/init.h> #include <linux/cpufreq.h> -#include <linux/pci.h> #include <linux/slab.h> #include <asm/msr.h> diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c index ff0d898..e1c509a 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c @@ -17,10 +17,10 @@ #include <linux/moduleparam.h> #include <linux/init.h> #include <linux/cpufreq.h> -#include <linux/pci.h> #include <linux/slab.h> #include <linux/delay.h> #include <asm/ist.h> +#include <asm/io.h> #include "speedstep-lib.h" diff --git a/arch/i386/kernel/cpu/cyrix.c b/arch/i386/kernel/cpu/cyrix.c index de27bd0..0b8411a 100644 --- a/arch/i386/kernel/cpu/cyrix.c +++ b/arch/i386/kernel/cpu/cyrix.c @@ -279,7 +279,7 @@ static void __cpuinit init_cyrix(struct cpuinfo_x86 *c) */ if (vendor == PCI_VENDOR_ID_CYRIX && (device == PCI_DEVICE_ID_CYRIX_5510 || device == PCI_DEVICE_ID_CYRIX_5520)) - pit_latch_buggy = 1; + mark_tsc_unstable("cyrix 5510/5520 detected"); } #endif c->x86_cache_size=16; /* Yep 16K integrated cache thats it */ @@ -448,16 +448,6 @@ int __init cyrix_init_cpu(void) return 0; } -//early_arch_initcall(cyrix_init_cpu); - -static int __init cyrix_exit_cpu(void) -{ - cpu_devs[X86_VENDOR_CYRIX] = NULL; - return 0; -} - -late_initcall(cyrix_exit_cpu); - static struct cpu_dev nsc_cpu_dev __cpuinitdata = { .c_vendor = "NSC", .c_ident = { "Geode by NSC" }, @@ -470,12 +460,3 @@ int __init nsc_init_cpu(void) return 0; } -//early_arch_initcall(nsc_init_cpu); - -static int __init nsc_exit_cpu(void) -{ - cpu_devs[X86_VENDOR_NSC] = NULL; - return 0; -} - -late_initcall(nsc_exit_cpu); diff --git a/arch/i386/kernel/cpu/intel.c b/arch/i386/kernel/cpu/intel.c index 56fe265..dc4e081 100644 --- a/arch/i386/kernel/cpu/intel.c +++ b/arch/i386/kernel/cpu/intel.c @@ -188,8 +188,10 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c) } #endif - if (c->x86 == 15) + if (c->x86 == 15) { set_bit(X86_FEATURE_P4, c->x86_capability); + set_bit(X86_FEATURE_SYNC_RDTSC, c->x86_capability); + } if (c->x86 == 6) set_bit(X86_FEATURE_P3, c->x86_capability); if ((c->x86 == 0xf && c->x86_model >= 0x03) || diff --git a/arch/i386/kernel/cpu/mcheck/k7.c b/arch/i386/kernel/cpu/mcheck/k7.c index b0862af..f9fa414 100644 --- a/arch/i386/kernel/cpu/mcheck/k7.c +++ b/arch/i386/kernel/cpu/mcheck/k7.c @@ -75,6 +75,9 @@ void amd_mcheck_init(struct cpuinfo_x86 *c) machine_check_vector = k7_machine_check; wmb(); + if (!cpu_has(c, X86_FEATURE_MCE)) + return; + printk (KERN_INFO "Intel machine check architecture supported.\n"); rdmsr (MSR_IA32_MCG_CAP, l, h); if (l & (1<<8)) /* Control register present ? */ @@ -82,9 +85,13 @@ void amd_mcheck_init(struct cpuinfo_x86 *c) nr_mce_banks = l & 0xff; /* Clear status for MC index 0 separately, we don't touch CTL, - * as some Athlons cause spurious MCEs when its enabled. */ - wrmsr (MSR_IA32_MC0_STATUS, 0x0, 0x0); - for (i=1; i<nr_mce_banks; i++) { + * as some K7 Athlons cause spurious MCEs when its enabled. */ + if (boot_cpu_data.x86 == 6) { + wrmsr (MSR_IA32_MC0_STATUS, 0x0, 0x0); + i = 1; + } else + i = 0; + for (; i<nr_mce_banks; i++) { wrmsr (MSR_IA32_MC0_CTL+4*i, 0xffffffff, 0xffffffff); wrmsr (MSR_IA32_MC0_STATUS+4*i, 0x0, 0x0); } diff --git a/arch/i386/kernel/cpu/mcheck/mce.c b/arch/i386/kernel/cpu/mcheck/mce.c index 4f10c62..56cd485 100644 --- a/arch/i386/kernel/cpu/mcheck/mce.c +++ b/arch/i386/kernel/cpu/mcheck/mce.c @@ -38,8 +38,7 @@ void mcheck_init(struct cpuinfo_x86 *c) switch (c->x86_vendor) { case X86_VENDOR_AMD: - if (c->x86==6 || c->x86==15) - amd_mcheck_init(c); + amd_mcheck_init(c); break; case X86_VENDOR_INTEL: diff --git a/arch/i386/kernel/cpu/mcheck/p4.c b/arch/i386/kernel/cpu/mcheck/p4.c index 504434a..1509edf 100644 --- a/arch/i386/kernel/cpu/mcheck/p4.c +++ b/arch/i386/kernel/cpu/mcheck/p4.c @@ -124,13 +124,10 @@ static void intel_init_thermal(struct cpuinfo_x86 *c) /* P4/Xeon Extended MCE MSR retrieval, return 0 if unsupported */ -static inline int intel_get_extended_msrs(struct intel_mce_extended_msrs *r) +static inline void intel_get_extended_msrs(struct intel_mce_extended_msrs *r) { u32 h; - if (mce_num_extended_msrs == 0) - goto done; - rdmsr (MSR_IA32_MCG_EAX, r->eax, h); rdmsr (MSR_IA32_MCG_EBX, r->ebx, h); rdmsr (MSR_IA32_MCG_ECX, r->ecx, h); @@ -141,12 +138,6 @@ static inline int intel_get_extended_msrs(struct intel_mce_extended_msrs *r) rdmsr (MSR_IA32_MCG_ESP, r->esp, h); rdmsr (MSR_IA32_MCG_EFLAGS, r->eflags, h); rdmsr (MSR_IA32_MCG_EIP, r->eip, h); - - /* can we rely on kmalloc to do a dynamic - * allocation for the reserved registers? - */ -done: - return mce_num_extended_msrs; } static fastcall void intel_machine_check(struct pt_regs * regs, long error_code) @@ -155,7 +146,6 @@ static fastcall void intel_machine_check(struct pt_regs * regs, long error_code) u32 alow, ahigh, high, low; u32 mcgstl, mcgsth; int i; - struct intel_mce_extended_msrs dbg; rdmsr (MSR_IA32_MCG_STATUS, mcgstl, mcgsth); if (mcgstl & (1<<0)) /* Recoverable ? */ @@ -164,7 +154,9 @@ static fastcall void intel_machine_check(struct pt_regs * regs, long error_code) printk (KERN_EMERG "CPU %d: Machine Check Exception: %08x%08x\n", smp_processor_id(), mcgsth, mcgstl); - if (intel_get_extended_msrs(&dbg)) { + if (mce_num_extended_msrs > 0) { + struct intel_mce_extended_msrs dbg; + intel_get_extended_msrs(&dbg); printk (KERN_DEBUG "CPU %d: EIP: %08x EFLAGS: %08x\n", smp_processor_id(), dbg.eip, dbg.eflags); printk (KERN_DEBUG "\teax: %08x ebx: %08x ecx: %08x edx: %08x\n", diff --git a/arch/i386/kernel/cpu/mtrr/generic.c b/arch/i386/kernel/cpu/mtrr/generic.c index f77fc53..5367e32 100644 --- a/arch/i386/kernel/cpu/mtrr/generic.c +++ b/arch/i386/kernel/cpu/mtrr/generic.c @@ -20,13 +20,25 @@ struct mtrr_state { mtrr_type def_type; }; +struct fixed_range_block { + int base_msr; /* start address of an MTRR block */ + int ranges; /* number of MTRRs in this block */ +}; + +static struct fixed_range_block fixed_range_blocks[] = { + { MTRRfix64K_00000_MSR, 1 }, /* one 64k MTRR */ + { MTRRfix16K_80000_MSR, 2 }, /* two 16k MTRRs */ + { MTRRfix4K_C0000_MSR, 8 }, /* eight 4k MTRRs */ + {} +}; + static unsigned long smp_changes_mask; static struct mtrr_state mtrr_state = {}; #undef MODULE_PARAM_PREFIX #define MODULE_PARAM_PREFIX "mtrr." -static __initdata int mtrr_show; +static int mtrr_show; module_param_named(show, mtrr_show, bool, 0); /* Get the MSR pair relating to a var range */ @@ -37,7 +49,7 @@ get_mtrr_var_range(unsigned int index, struct mtrr_var_range *vr) rdmsr(MTRRphysMask_MSR(index), vr->mask_lo, vr->mask_hi); } -static void __init +static void get_fixed_ranges(mtrr_type * frs) { unsigned int *p = (unsigned int *) frs; @@ -51,12 +63,18 @@ get_fixed_ranges(mtrr_type * frs) rdmsr(MTRRfix4K_C0000_MSR + i, p[6 + i * 2], p[7 + i * 2]); } -static void __init print_fixed(unsigned base, unsigned step, const mtrr_type*types) +void mtrr_save_fixed_ranges(void *info) +{ + get_fixed_ranges(mtrr_state.fixed_ranges); +} + +static void __cpuinit print_fixed(unsigned base, unsigned step, const mtrr_type*types) { unsigned i; for (i = 0; i < 8; ++i, ++types, base += step) - printk(KERN_INFO "MTRR %05X-%05X %s\n", base, base + step - 1, mtrr_attrib_to_str(*types)); + printk(KERN_INFO "MTRR %05X-%05X %s\n", + base, base + step - 1, mtrr_attrib_to_str(*types)); } /* Grab all of the MTRR state for this CPU into *state */ @@ -147,6 +165,44 @@ void mtrr_wrmsr(unsigned msr, unsigned a, unsigned b) smp_processor_id(), msr, a, b); } +/** + * Enable and allow read/write of extended fixed-range MTRR bits on K8 CPUs + * see AMD publication no. 24593, chapter 3.2.1 for more information + */ +static inline void k8_enable_fixed_iorrs(void) +{ + unsigned lo, hi; + + rdmsr(MSR_K8_SYSCFG, lo, hi); + mtrr_wrmsr(MSR_K8_SYSCFG, lo + | K8_MTRRFIXRANGE_DRAM_ENABLE + | K8_MTRRFIXRANGE_DRAM_MODIFY, hi); +} + +/** + * Checks and updates an fixed-range MTRR if it differs from the value it + * should have. If K8 extenstions are wanted, update the K8 SYSCFG MSR also. + * see AMD publication no. 24593, chapter 7.8.1, page 233 for more information + * \param msr MSR address of the MTTR which should be checked and updated + * \param changed pointer which indicates whether the MTRR needed to be changed + * \param msrwords pointer to the MSR values which the MSR should have + */ +static void set_fixed_range(int msr, int * changed, unsigned int * msrwords) +{ + unsigned lo, hi; + + rdmsr(msr, lo, hi); + + if (lo != msrwords[0] || hi != msrwords[1]) { + if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD && + boot_cpu_data.x86 == 15 && + ((msrwords[0] | msrwords[1]) & K8_MTRR_RDMEM_WRMEM_MASK)) + k8_enable_fixed_iorrs(); + mtrr_wrmsr(msr, msrwords[0], msrwords[1]); + *changed = TRUE; + } +} + int generic_get_free_region(unsigned long base, unsigned long size, int replace_reg) /* [SUMMARY] Get a free MTRR. <base> The starting (base) address of the region. @@ -196,36 +252,21 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base, *type = base_lo & 0xff; } +/** + * Checks and updates the fixed-range MTRRs if they differ from the saved set + * \param frs pointer to fixed-range MTRR values, saved by get_fixed_ranges() + */ static int set_fixed_ranges(mtrr_type * frs) { - unsigned int *p = (unsigned int *) frs; + unsigned long long *saved = (unsigned long long *) frs; int changed = FALSE; - int i; - unsigned int lo, hi; + int block=-1, range; - rdmsr(MTRRfix64K_00000_MSR, lo, hi); - if (p[0] != lo || p[1] != hi) { - mtrr_wrmsr(MTRRfix64K_00000_MSR, p[0], p[1]); - changed = TRUE; - } + while (fixed_range_blocks[++block].ranges) + for (range=0; range < fixed_range_blocks[block].ranges; range++) + set_fixed_range(fixed_range_blocks[block].base_msr + range, + &changed, (unsigned int *) saved++); - for (i = 0; i < 2; i++) { - rdmsr(MTRRfix16K_80000_MSR + i, lo, hi); - if (p[2 + i * 2] != lo || p[3 + i * 2] != hi) { - mtrr_wrmsr(MTRRfix16K_80000_MSR + i, p[2 + i * 2], - p[3 + i * 2]); - changed = TRUE; - } - } - - for (i = 0; i < 8; i++) { - rdmsr(MTRRfix4K_C0000_MSR + i, lo, hi); - if (p[6 + i * 2] != lo || p[7 + i * 2] != hi) { - mtrr_wrmsr(MTRRfix4K_C0000_MSR + i, p[6 + i * 2], - p[7 + i * 2]); - changed = TRUE; - } - } return changed; } @@ -428,7 +469,7 @@ int generic_validate_add_page(unsigned long base, unsigned long size, unsigned i } } - if (base + size < 0x100) { + if (base < 0x100) { printk(KERN_WARNING "mtrr: cannot set region below 1 MiB (0x%lx000,0x%lx000)\n", base, size); return -EINVAL; diff --git a/arch/i386/kernel/cpu/mtrr/main.c b/arch/i386/kernel/cpu/mtrr/main.c index 0acfb6a..02a2f39 100644 --- a/arch/i386/kernel/cpu/mtrr/main.c +++ b/arch/i386/kernel/cpu/mtrr/main.c @@ -729,6 +729,17 @@ void mtrr_ap_init(void) local_irq_restore(flags); } +/** + * Save current fixed-range MTRR state of the BSP + */ +void mtrr_save_state(void) +{ + if (smp_processor_id() == 0) + mtrr_save_fixed_ranges(NULL); + else + smp_call_function_single(0, mtrr_save_fixed_ranges, NULL, 1, 1); +} + static int __init mtrr_init_finialize(void) { if (!mtrr_if) diff --git a/arch/i386/kernel/cpu/nexgen.c b/arch/i386/kernel/cpu/nexgen.c index 8bf23cc..961fbe1 100644 --- a/arch/i386/kernel/cpu/nexgen.c +++ b/arch/i386/kernel/cpu/nexgen.c @@ -58,13 +58,3 @@ int __init nexgen_init_cpu(void) cpu_devs[X86_VENDOR_NEXGEN] = &nexgen_cpu_dev; return 0; } - -//early_arch_initcall(nexgen_init_cpu); - -static int __init nexgen_exit_cpu(void) -{ - cpu_devs[X86_VENDOR_NEXGEN] = NULL; - return 0; -} - -late_initcall(nexgen_exit_cpu); diff --git a/arch/i386/kernel/cpu/perfctr-watchdog.c b/arch/i386/kernel/cpu/perfctr-watchdog.c new file mode 100644 index 0000000..2b04c8f --- /dev/null +++ b/arch/i386/kernel/cpu/perfctr-watchdog.c @@ -0,0 +1,658 @@ +/* local apic based NMI watchdog for various CPUs. + This file also handles reservation of performance counters for coordination + with other users (like oprofile). + + Note that these events normally don't tick when the CPU idles. This means + the frequency varies with CPU load. + + Original code for K7/P6 written by Keith Owens */ + +#include <linux/percpu.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/bitops.h> +#include <linux/smp.h> +#include <linux/nmi.h> +#include <asm/apic.h> +#include <asm/intel_arch_perfmon.h> + +struct nmi_watchdog_ctlblk { + unsigned int cccr_msr; + unsigned int perfctr_msr; /* the MSR to reset in NMI handler */ + unsigned int evntsel_msr; /* the MSR to select the events to handle */ +}; + +/* Interface defining a CPU specific perfctr watchdog */ +struct wd_ops { + int (*reserve)(void); + void (*unreserve)(void); + int (*setup)(unsigned nmi_hz); + void (*rearm)(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz); + void (*stop)(void *); + unsigned perfctr; + unsigned evntsel; + u64 checkbit; +}; + +static struct wd_ops *wd_ops; + +/* this number is calculated from Intel's MSR_P4_CRU_ESCR5 register and it's + * offset from MSR_P4_BSU_ESCR0. It will be the max for all platforms (for now) + */ +#define NMI_MAX_COUNTER_BITS 66 + +/* perfctr_nmi_owner tracks the ownership of the perfctr registers: + * evtsel_nmi_owner tracks the ownership of the event selection + * - different performance counters/ event selection may be reserved for + * different subsystems this reservation system just tries to coordinate + * things a little + */ +static DECLARE_BITMAP(perfctr_nmi_owner, NMI_MAX_COUNTER_BITS); +static DECLARE_BITMAP(evntsel_nmi_owner, NMI_MAX_COUNTER_BITS); + +static DEFINE_PER_CPU(struct nmi_watchdog_ctlblk, nmi_watchdog_ctlblk); + +/* converts an msr to an appropriate reservation bit */ +static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr) +{ + return wd_ops ? msr - wd_ops->perfctr : 0; +} + +/* converts an msr to an appropriate reservation bit */ +/* returns the bit offset of the event selection register */ +static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr) +{ + return wd_ops ? msr - wd_ops->evntsel : 0; +} + +/* checks for a bit availability (hack for oprofile) */ +int avail_to_resrv_perfctr_nmi_bit(unsigned int counter) +{ + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + return (!test_bit(counter, perfctr_nmi_owner)); +} + +/* checks the an msr for availability */ +int avail_to_resrv_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + return (!test_bit(counter, perfctr_nmi_owner)); +} + +int reserve_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + if (!test_and_set_bit(counter, perfctr_nmi_owner)) + return 1; + return 0; +} + +void release_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + clear_bit(counter, perfctr_nmi_owner); +} + +int reserve_evntsel_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_evntsel_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + if (!test_and_set_bit(counter, evntsel_nmi_owner)) + return 1; + return 0; +} + +void release_evntsel_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_evntsel_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + clear_bit(counter, evntsel_nmi_owner); +} + +EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi); +EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit); +EXPORT_SYMBOL(reserve_perfctr_nmi); +EXPORT_SYMBOL(release_perfctr_nmi); +EXPORT_SYMBOL(reserve_evntsel_nmi); +EXPORT_SYMBOL(release_evntsel_nmi); + +void disable_lapic_nmi_watchdog(void) +{ + BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); + + if (atomic_read(&nmi_active) <= 0) + return; + + on_each_cpu(wd_ops->stop, NULL, 0, 1); + wd_ops->unreserve(); + + BUG_ON(atomic_read(&nmi_active) != 0); +} + +void enable_lapic_nmi_watchdog(void) +{ + BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); + + /* are we already enabled */ + if (atomic_read(&nmi_active) != 0) + return; + + /* are we lapic aware */ + if (!wd_ops) + return; + if (!wd_ops->reserve()) { + printk(KERN_ERR "NMI watchdog: cannot reserve perfctrs\n"); + return; + } + + on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); + touch_nmi_watchdog(); +} + +/* + * Activate the NMI watchdog via the local APIC. + */ + +static unsigned int adjust_for_32bit_ctr(unsigned int hz) +{ + u64 counter_val; + unsigned int retval = hz; + + /* + * On Intel CPUs with P6/ARCH_PERFMON only 32 bits in the counter + * are writable, with higher bits sign extending from bit 31. + * So, we can only program the counter with 31 bit values and + * 32nd bit should be 1, for 33.. to be 1. + * Find the appropriate nmi_hz + */ + counter_val = (u64)cpu_khz * 1000; + do_div(counter_val, retval); + if (counter_val > 0x7fffffffULL) { + u64 count = (u64)cpu_khz * 1000; + do_div(count, 0x7fffffffUL); + retval = count + 1; + } + return retval; +} + +static void +write_watchdog_counter(unsigned int perfctr_msr, const char *descr, unsigned nmi_hz) +{ + u64 count = (u64)cpu_khz * 1000; + + do_div(count, nmi_hz); + if(descr) + Dprintk("setting %s to -0x%08Lx\n", descr, count); + wrmsrl(perfctr_msr, 0 - count); +} + +static void write_watchdog_counter32(unsigned int perfctr_msr, + const char *descr, unsigned nmi_hz) +{ + u64 count = (u64)cpu_khz * 1000; + + do_div(count, nmi_hz); + if(descr) + Dprintk("setting %s to -0x%08Lx\n", descr, count); + wrmsr(perfctr_msr, (u32)(-count), 0); +} + +/* AMD K7/K8/Family10h/Family11h support. AMD keeps this interface + nicely stable so there is not much variety */ + +#define K7_EVNTSEL_ENABLE (1 << 22) +#define K7_EVNTSEL_INT (1 << 20) +#define K7_EVNTSEL_OS (1 << 17) +#define K7_EVNTSEL_USR (1 << 16) +#define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING 0x76 +#define K7_NMI_EVENT K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING + +static int setup_k7_watchdog(unsigned nmi_hz) +{ + unsigned int perfctr_msr, evntsel_msr; + unsigned int evntsel; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + perfctr_msr = MSR_K7_PERFCTR0; + evntsel_msr = MSR_K7_EVNTSEL0; + + wrmsrl(perfctr_msr, 0UL); + + evntsel = K7_EVNTSEL_INT + | K7_EVNTSEL_OS + | K7_EVNTSEL_USR + | K7_NMI_EVENT; + + /* setup the timer */ + wrmsr(evntsel_msr, evntsel, 0); + write_watchdog_counter(perfctr_msr, "K7_PERFCTR0",nmi_hz); + apic_write(APIC_LVTPC, APIC_DM_NMI); + evntsel |= K7_EVNTSEL_ENABLE; + wrmsr(evntsel_msr, evntsel, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = 0; //unused + return 1; +} + +static void single_msr_stop_watchdog(void *arg) +{ + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + wrmsr(wd->evntsel_msr, 0, 0); +} + +static int single_msr_reserve(void) +{ + if (!reserve_perfctr_nmi(wd_ops->perfctr)) + return 0; + + if (!reserve_evntsel_nmi(wd_ops->evntsel)) { + release_perfctr_nmi(wd_ops->perfctr); + return 0; + } + return 1; +} + +static void single_msr_unreserve(void) +{ + release_evntsel_nmi(wd_ops->perfctr); + release_perfctr_nmi(wd_ops->evntsel); +} + +static void single_msr_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz) +{ + /* start the cycle over again */ + write_watchdog_counter(wd->perfctr_msr, NULL, nmi_hz); +} + +static struct wd_ops k7_wd_ops = { + .reserve = single_msr_reserve, + .unreserve = single_msr_unreserve, + .setup = setup_k7_watchdog, + .rearm = single_msr_rearm, + .stop = single_msr_stop_watchdog, + .perfctr = MSR_K7_PERFCTR0, + .evntsel = MSR_K7_EVNTSEL0, + .checkbit = 1ULL<<63, +}; + +/* Intel Model 6 (PPro+,P2,P3,P-M,Core1) */ + +#define P6_EVNTSEL0_ENABLE (1 << 22) +#define P6_EVNTSEL_INT (1 << 20) +#define P6_EVNTSEL_OS (1 << 17) +#define P6_EVNTSEL_USR (1 << 16) +#define P6_EVENT_CPU_CLOCKS_NOT_HALTED 0x79 +#define P6_NMI_EVENT P6_EVENT_CPU_CLOCKS_NOT_HALTED + +static int setup_p6_watchdog(unsigned nmi_hz) +{ + unsigned int perfctr_msr, evntsel_msr; + unsigned int evntsel; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + perfctr_msr = MSR_P6_PERFCTR0; + evntsel_msr = MSR_P6_EVNTSEL0; + + wrmsrl(perfctr_msr, 0UL); + + evntsel = P6_EVNTSEL_INT + | P6_EVNTSEL_OS + | P6_EVNTSEL_USR + | P6_NMI_EVENT; + + /* setup the timer */ + wrmsr(evntsel_msr, evntsel, 0); + nmi_hz = adjust_for_32bit_ctr(nmi_hz); + write_watchdog_counter32(perfctr_msr, "P6_PERFCTR0",nmi_hz); + apic_write(APIC_LVTPC, APIC_DM_NMI); + evntsel |= P6_EVNTSEL0_ENABLE; + wrmsr(evntsel_msr, evntsel, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = 0; //unused + return 1; +} + +static void p6_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz) +{ + /* P6 based Pentium M need to re-unmask + * the apic vector but it doesn't hurt + * other P6 variant. + * ArchPerfom/Core Duo also needs this */ + apic_write(APIC_LVTPC, APIC_DM_NMI); + /* P6/ARCH_PERFMON has 32 bit counter write */ + write_watchdog_counter32(wd->perfctr_msr, NULL,nmi_hz); +} + +static struct wd_ops p6_wd_ops = { + .reserve = single_msr_reserve, + .unreserve = single_msr_unreserve, + .setup = setup_p6_watchdog, + .rearm = p6_rearm, + .stop = single_msr_stop_watchdog, + .perfctr = MSR_P6_PERFCTR0, + .evntsel = MSR_P6_EVNTSEL0, + .checkbit = 1ULL<<39, +}; + +/* Intel P4 performance counters. By far the most complicated of all. */ + +#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7) +#define P4_ESCR_EVENT_SELECT(N) ((N)<<25) +#define P4_ESCR_OS (1<<3) +#define P4_ESCR_USR (1<<2) +#define P4_CCCR_OVF_PMI0 (1<<26) +#define P4_CCCR_OVF_PMI1 (1<<27) +#define P4_CCCR_THRESHOLD(N) ((N)<<20) +#define P4_CCCR_COMPLEMENT (1<<19) +#define P4_CCCR_COMPARE (1<<18) +#define P4_CCCR_REQUIRED (3<<16) +#define P4_CCCR_ESCR_SELECT(N) ((N)<<13) +#define P4_CCCR_ENABLE (1<<12) +#define P4_CCCR_OVF (1<<31) + +/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter + CRU_ESCR0 (with any non-null event selector) through a complemented + max threshold. [IA32-Vol3, Section 14.9.9] */ + +static int setup_p4_watchdog(unsigned nmi_hz) +{ + unsigned int perfctr_msr, evntsel_msr, cccr_msr; + unsigned int evntsel, cccr_val; + unsigned int misc_enable, dummy; + unsigned int ht_num; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + rdmsr(MSR_IA32_MISC_ENABLE, misc_enable, dummy); + if (!(misc_enable & MSR_P4_MISC_ENABLE_PERF_AVAIL)) + return 0; + +#ifdef CONFIG_SMP + /* detect which hyperthread we are on */ + if (smp_num_siblings == 2) { + unsigned int ebx, apicid; + + ebx = cpuid_ebx(1); + apicid = (ebx >> 24) & 0xff; + ht_num = apicid & 1; + } else +#endif + ht_num = 0; + + /* performance counters are shared resources + * assign each hyperthread its own set + * (re-use the ESCR0 register, seems safe + * and keeps the cccr_val the same) + */ + if (!ht_num) { + /* logical cpu 0 */ + perfctr_msr = MSR_P4_IQ_PERFCTR0; + evntsel_msr = MSR_P4_CRU_ESCR0; + cccr_msr = MSR_P4_IQ_CCCR0; + cccr_val = P4_CCCR_OVF_PMI0 | P4_CCCR_ESCR_SELECT(4); + } else { + /* logical cpu 1 */ + perfctr_msr = MSR_P4_IQ_PERFCTR1; + evntsel_msr = MSR_P4_CRU_ESCR0; + cccr_msr = MSR_P4_IQ_CCCR1; + cccr_val = P4_CCCR_OVF_PMI1 | P4_CCCR_ESCR_SELECT(4); + } + + evntsel = P4_ESCR_EVENT_SELECT(0x3F) + | P4_ESCR_OS + | P4_ESCR_USR; + + cccr_val |= P4_CCCR_THRESHOLD(15) + | P4_CCCR_COMPLEMENT + | P4_CCCR_COMPARE + | P4_CCCR_REQUIRED; + + wrmsr(evntsel_msr, evntsel, 0); + wrmsr(cccr_msr, cccr_val, 0); + write_watchdog_counter(perfctr_msr, "P4_IQ_COUNTER0", nmi_hz); + apic_write(APIC_LVTPC, APIC_DM_NMI); + cccr_val |= P4_CCCR_ENABLE; + wrmsr(cccr_msr, cccr_val, 0); + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = cccr_msr; + return 1; +} + +static void stop_p4_watchdog(void *arg) +{ + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + wrmsr(wd->cccr_msr, 0, 0); + wrmsr(wd->evntsel_msr, 0, 0); +} + +static int p4_reserve(void) +{ + if (!reserve_perfctr_nmi(MSR_P4_IQ_PERFCTR0)) + return 0; +#ifdef CONFIG_SMP + if (smp_num_siblings > 1 && !reserve_perfctr_nmi(MSR_P4_IQ_PERFCTR1)) + goto fail1; +#endif + if (!reserve_evntsel_nmi(MSR_P4_CRU_ESCR0)) + goto fail2; + /* RED-PEN why is ESCR1 not reserved here? */ + return 1; + fail2: +#ifdef CONFIG_SMP + if (smp_num_siblings > 1) + release_perfctr_nmi(MSR_P4_IQ_PERFCTR1); + fail1: +#endif + release_perfctr_nmi(MSR_P4_IQ_PERFCTR0); + return 0; +} + +static void p4_unreserve(void) +{ +#ifdef CONFIG_SMP + if (smp_num_siblings > 1) + release_evntsel_nmi(MSR_P4_IQ_PERFCTR1); +#endif + release_evntsel_nmi(MSR_P4_IQ_PERFCTR0); + release_perfctr_nmi(MSR_P4_CRU_ESCR0); +} + +static void p4_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz) +{ + unsigned dummy; + /* + * P4 quirks: + * - An overflown perfctr will assert its interrupt + * until the OVF flag in its CCCR is cleared. + * - LVTPC is masked on interrupt and must be + * unmasked by the LVTPC handler. + */ + rdmsrl(wd->cccr_msr, dummy); + dummy &= ~P4_CCCR_OVF; + wrmsrl(wd->cccr_msr, dummy); + apic_write(APIC_LVTPC, APIC_DM_NMI); + /* start the cycle over again */ + write_watchdog_counter(wd->perfctr_msr, NULL, nmi_hz); +} + +static struct wd_ops p4_wd_ops = { + .reserve = p4_reserve, + .unreserve = p4_unreserve, + .setup = setup_p4_watchdog, + .rearm = p4_rearm, + .stop = stop_p4_watchdog, + /* RED-PEN this is wrong for the other sibling */ + .perfctr = MSR_P4_BPU_PERFCTR0, + .evntsel = MSR_P4_BSU_ESCR0, + .checkbit = 1ULL<<39, +}; + +/* Watchdog using the Intel architected PerfMon. Used for Core2 and hopefully + all future Intel CPUs. */ + +#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL +#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK + +static int setup_intel_arch_watchdog(unsigned nmi_hz) +{ + unsigned int ebx; + union cpuid10_eax eax; + unsigned int unused; + unsigned int perfctr_msr, evntsel_msr; + unsigned int evntsel; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + /* + * Check whether the Architectural PerfMon supports + * Unhalted Core Cycles Event or not. + * NOTE: Corresponding bit = 0 in ebx indicates event present. + */ + cpuid(10, &(eax.full), &ebx, &unused, &unused); + if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) || + (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) + return 0; + + perfctr_msr = MSR_ARCH_PERFMON_PERFCTR1; + evntsel_msr = MSR_ARCH_PERFMON_EVENTSEL1; + + wrmsrl(perfctr_msr, 0UL); + + evntsel = ARCH_PERFMON_EVENTSEL_INT + | ARCH_PERFMON_EVENTSEL_OS + | ARCH_PERFMON_EVENTSEL_USR + | ARCH_PERFMON_NMI_EVENT_SEL + | ARCH_PERFMON_NMI_EVENT_UMASK; + + /* setup the timer */ + wrmsr(evntsel_msr, evntsel, 0); + nmi_hz = adjust_for_32bit_ctr(nmi_hz); + write_watchdog_counter32(perfctr_msr, "INTEL_ARCH_PERFCTR0", nmi_hz); + apic_write(APIC_LVTPC, APIC_DM_NMI); + evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE; + wrmsr(evntsel_msr, evntsel, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = 0; //unused + wd_ops->checkbit = 1ULL << (eax.split.bit_width - 1); + return 1; +} + +static struct wd_ops intel_arch_wd_ops = { + .reserve = single_msr_reserve, + .unreserve = single_msr_unreserve, + .setup = setup_intel_arch_watchdog, + .rearm = p6_rearm, + .stop = single_msr_stop_watchdog, + .perfctr = MSR_ARCH_PERFMON_PERFCTR0, + .evntsel = MSR_ARCH_PERFMON_EVENTSEL0, +}; + +static void probe_nmi_watchdog(void) +{ + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + if (boot_cpu_data.x86 != 6 && boot_cpu_data.x86 != 15 && + boot_cpu_data.x86 != 16) + return; + wd_ops = &k7_wd_ops; + break; + case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { + wd_ops = &intel_arch_wd_ops; + break; + } + switch (boot_cpu_data.x86) { + case 6: + if (boot_cpu_data.x86_model > 0xd) + return; + + wd_ops = &p6_wd_ops; + break; + case 15: + if (boot_cpu_data.x86_model > 0x4) + return; + + wd_ops = &p4_wd_ops; + break; + default: + return; + } + break; + } +} + +/* Interface to nmi.c */ + +int lapic_watchdog_init(unsigned nmi_hz) +{ + if (!wd_ops) { + probe_nmi_watchdog(); + if (!wd_ops) + return -1; + } + + if (!(wd_ops->setup(nmi_hz))) { + printk(KERN_ERR "Cannot setup NMI watchdog on CPU %d\n", + raw_smp_processor_id()); + return -1; + } + + return 0; +} + +void lapic_watchdog_stop(void) +{ + if (wd_ops) + wd_ops->stop(NULL); +} + +unsigned lapic_adjust_nmi_hz(unsigned hz) +{ + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + if (wd->perfctr_msr == MSR_P6_PERFCTR0 || + wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR1) + hz = adjust_for_32bit_ctr(hz); + return hz; +} + +int lapic_wd_event(unsigned nmi_hz) +{ + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + u64 ctr; + rdmsrl(wd->perfctr_msr, ctr); + if (ctr & wd_ops->checkbit) { /* perfctr still running? */ + return 0; + } + wd_ops->rearm(wd, nmi_hz); + return 1; +} + +int lapic_watchdog_ok(void) +{ + return wd_ops != NULL; +} diff --git a/arch/i386/kernel/cpu/proc.c b/arch/i386/kernel/cpu/proc.c index 47e3ebb..89d91e6 100644 --- a/arch/i386/kernel/cpu/proc.c +++ b/arch/i386/kernel/cpu/proc.c @@ -72,8 +72,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) "stc", "100mhzsteps", "hwpstate", - NULL, - NULL, /* constant_tsc - moved to flags */ + "", /* constant_tsc - moved to flags */ /* nothing */ }; struct cpuinfo_x86 *c = v; diff --git a/arch/i386/kernel/cpu/rise.c b/arch/i386/kernel/cpu/rise.c index 9317f74..50076f2 100644 --- a/arch/i386/kernel/cpu/rise.c +++ b/arch/i386/kernel/cpu/rise.c @@ -50,12 +50,3 @@ int __init rise_init_cpu(void) return 0; } -//early_arch_initcall(rise_init_cpu); - -static int __init rise_exit_cpu(void) -{ - cpu_devs[X86_VENDOR_RISE] = NULL; - return 0; -} - -late_initcall(rise_exit_cpu); diff --git a/arch/i386/kernel/cpu/transmeta.c b/arch/i386/kernel/cpu/transmeta.c index 5678d46..6471a5a 100644 --- a/arch/i386/kernel/cpu/transmeta.c +++ b/arch/i386/kernel/cpu/transmeta.c @@ -112,13 +112,3 @@ int __init transmeta_init_cpu(void) cpu_devs[X86_VENDOR_TRANSMETA] = &transmeta_cpu_dev; return 0; } - -//early_arch_initcall(transmeta_init_cpu); - -static int __init transmeta_exit_cpu(void) -{ - cpu_devs[X86_VENDOR_TRANSMETA] = NULL; - return 0; -} - -late_initcall(transmeta_exit_cpu); diff --git a/arch/i386/kernel/cpu/umc.c b/arch/i386/kernel/cpu/umc.c index 1bf3f87..a7a4e75 100644 --- a/arch/i386/kernel/cpu/umc.c +++ b/arch/i386/kernel/cpu/umc.c @@ -24,13 +24,3 @@ int __init umc_init_cpu(void) cpu_devs[X86_VENDOR_UMC] = &umc_cpu_dev; return 0; } - -//early_arch_initcall(umc_init_cpu); - -static int __init umc_exit_cpu(void) -{ - cpu_devs[X86_VENDOR_UMC] = NULL; - return 0; -} - -late_initcall(umc_exit_cpu); diff --git a/arch/i386/kernel/doublefault.c b/arch/i386/kernel/doublefault.c index b4d14c2..265c5597 100644 --- a/arch/i386/kernel/doublefault.c +++ b/arch/i386/kernel/doublefault.c @@ -33,7 +33,7 @@ static void doublefault_fn(void) printk("double fault, tss at %08lx\n", tss); if (ptr_ok(tss)) { - struct tss_struct *t = (struct tss_struct *)tss; + struct i386_hw_tss *t = (struct i386_hw_tss *)tss; printk("eip = %08lx, esp = %08lx\n", t->eip, t->esp); @@ -49,18 +49,21 @@ static void doublefault_fn(void) } struct tss_struct doublefault_tss __cacheline_aligned = { - .esp0 = STACK_START, - .ss0 = __KERNEL_DS, - .ldt = 0, - .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, + .x86_tss = { + .esp0 = STACK_START, + .ss0 = __KERNEL_DS, + .ldt = 0, + .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, - .eip = (unsigned long) doublefault_fn, - .eflags = X86_EFLAGS_SF | 0x2, /* 0x2 bit is always set */ - .esp = STACK_START, - .es = __USER_DS, - .cs = __KERNEL_CS, - .ss = __KERNEL_DS, - .ds = __USER_DS, + .eip = (unsigned long) doublefault_fn, + /* 0x2 bit is always set */ + .eflags = X86_EFLAGS_SF | 0x2, + .esp = STACK_START, + .es = __USER_DS, + .cs = __KERNEL_CS, + .ss = __KERNEL_DS, + .ds = __USER_DS, - .__cr3 = __pa(swapper_pg_dir) + .__cr3 = __pa(swapper_pg_dir) + } }; diff --git a/arch/i386/kernel/e820.c b/arch/i386/kernel/e820.c index 70f3956..9645bb51 100644 --- a/arch/i386/kernel/e820.c +++ b/arch/i386/kernel/e820.c @@ -161,26 +161,27 @@ static struct resource standard_io_resources[] = { { static int __init romsignature(const unsigned char *rom) { + const unsigned short * const ptr = (const unsigned short *)rom; unsigned short sig; - return probe_kernel_address((const unsigned short *)rom, sig) == 0 && - sig == ROMSIGNATURE; + return probe_kernel_address(ptr, sig) == 0 && sig == ROMSIGNATURE; } -static int __init romchecksum(unsigned char *rom, unsigned long length) +static int __init romchecksum(const unsigned char *rom, unsigned long length) { - unsigned char sum; + unsigned char sum, c; - for (sum = 0; length; length--) - sum += *rom++; - return sum == 0; + for (sum = 0; length && probe_kernel_address(rom++, c) == 0; length--) + sum += c; + return !length && !sum; } static void __init probe_roms(void) { + const unsigned char *rom; unsigned long start, length, upper; - unsigned char *rom; - int i; + unsigned char c; + int i; /* video rom */ upper = adapter_rom_resources[0].start; @@ -191,8 +192,11 @@ static void __init probe_roms(void) video_rom_resource.start = start; + if (probe_kernel_address(rom + 2, c) != 0) + continue; + /* 0 < length <= 0x7f * 512, historically */ - length = rom[2] * 512; + length = c * 512; /* if checksum okay, trust length byte */ if (length && romchecksum(rom, length)) @@ -226,8 +230,11 @@ static void __init probe_roms(void) if (!romsignature(rom)) continue; + if (probe_kernel_address(rom + 2, c) != 0) + continue; + /* 0 < length <= 0x7f * 512, historically */ - length = rom[2] * 512; + length = c * 512; /* but accept any length that fits if checksum okay */ if (!length || start + length > upper || !romchecksum(rom, length)) @@ -386,10 +393,8 @@ int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map) ____________________33__ ______________________4_ */ - printk("sanitize start\n"); /* if there's only one memory region, don't bother */ if (*pnr_map < 2) { - printk("sanitize bail 0\n"); return -1; } @@ -398,7 +403,6 @@ int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map) /* bail out if we find any unreasonable addresses in bios map */ for (i=0; i<old_nr; i++) if (biosmap[i].addr + biosmap[i].size < biosmap[i].addr) { - printk("sanitize bail 1\n"); return -1; } @@ -494,7 +498,6 @@ int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map) memcpy(biosmap, new_bios, new_nr*sizeof(struct e820entry)); *pnr_map = new_nr; - printk("sanitize end\n"); return 0; } @@ -525,7 +528,6 @@ int __init copy_e820_map(struct e820entry * biosmap, int nr_map) unsigned long long size = biosmap->size; unsigned long long end = start + size; unsigned long type = biosmap->type; - printk("copy_e820_map() start: %016Lx size: %016Lx end: %016Lx type: %ld\n", start, size, end, type); /* Overflow in 64 bits? Ignore the memory map. */ if (start > end) @@ -536,17 +538,11 @@ int __init copy_e820_map(struct e820entry * biosmap, int nr_map) * Not right. Fix it up. */ if (type == E820_RAM) { - printk("copy_e820_map() type is E820_RAM\n"); if (start < 0x100000ULL && end > 0xA0000ULL) { - printk("copy_e820_map() lies in range...\n"); - if (start < 0xA0000ULL) { - printk("copy_e820_map() start < 0xA0000ULL\n"); + if (start < 0xA0000ULL) add_memory_region(start, 0xA0000ULL-start, type); - } - if (end <= 0x100000ULL) { - printk("copy_e820_map() end <= 0x100000ULL\n"); + if (end <= 0x100000ULL) continue; - } start = 0x100000ULL; size = end - start; } @@ -818,6 +814,26 @@ void __init limit_regions(unsigned long long size) print_memory_map("limit_regions endfunc"); } +/* + * This function checks if any part of the range <start,end> is mapped + * with type. + */ +int +e820_any_mapped(u64 start, u64 end, unsigned type) +{ + int i; + for (i = 0; i < e820.nr_map; i++) { + const struct e820entry *ei = &e820.map[i]; + if (type && ei->type != type) + continue; + if (ei->addr >= end || ei->addr + ei->size <= start) + continue; + return 1; + } + return 0; +} +EXPORT_SYMBOL_GPL(e820_any_mapped); + /* * This function checks if the entire range <start,end> is mapped with type. * diff --git a/arch/i386/kernel/efi.c b/arch/i386/kernel/efi.c index 8f9c624..dd9e7fa 100644 --- a/arch/i386/kernel/efi.c +++ b/arch/i386/kernel/efi.c @@ -69,13 +69,11 @@ static void efi_call_phys_prelog(void) __acquires(efi_rt_lock) { unsigned long cr4; unsigned long temp; - struct Xgt_desc_struct *cpu_gdt_descr; + struct Xgt_desc_struct gdt_descr; spin_lock(&efi_rt_lock); local_irq_save(efi_rt_eflags); - cpu_gdt_descr = &per_cpu(cpu_gdt_descr, 0); - /* * If I don't have PSE, I should just duplicate two entries in page * directory. If I have PSE, I just need to duplicate one entry in @@ -105,17 +103,19 @@ static void efi_call_phys_prelog(void) __acquires(efi_rt_lock) */ local_flush_tlb(); - cpu_gdt_descr->address = __pa(cpu_gdt_descr->address); - load_gdt(cpu_gdt_descr); + gdt_descr.address = __pa(get_cpu_gdt_table(0)); + gdt_descr.size = GDT_SIZE - 1; + load_gdt(&gdt_descr); } static void efi_call_phys_epilog(void) __releases(efi_rt_lock) { unsigned long cr4; - struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, 0); + struct Xgt_desc_struct gdt_descr; - cpu_gdt_descr->address = (unsigned long)__va(cpu_gdt_descr->address); - load_gdt(cpu_gdt_descr); + gdt_descr.address = (unsigned long)get_cpu_gdt_table(0); + gdt_descr.size = GDT_SIZE - 1; + load_gdt(&gdt_descr); cr4 = read_cr4(); diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S index 18bddcb..b1f16ee 100644 --- a/arch/i386/kernel/entry.S +++ b/arch/i386/kernel/entry.S @@ -15,7 +15,7 @@ * I changed all the .align's to 4 (16 byte alignment), as that's faster * on a 486. * - * Stack layout in 'ret_from_system_call': + * Stack layout in 'syscall_exit': * ptrace needs to have all regs on the stack. * if the order here is changed, it needs to be * updated in fork.c:copy_process, signal.c:do_signal, @@ -132,7 +132,7 @@ VM_MASK = 0x00020000 movl $(__USER_DS), %edx; \ movl %edx, %ds; \ movl %edx, %es; \ - movl $(__KERNEL_PDA), %edx; \ + movl $(__KERNEL_PERCPU), %edx; \ movl %edx, %fs #define RESTORE_INT_REGS \ @@ -305,16 +305,12 @@ sysenter_past_esp: pushl $(__USER_CS) CFI_ADJUST_CFA_OFFSET 4 /*CFI_REL_OFFSET cs, 0*/ -#ifndef CONFIG_COMPAT_VDSO /* * Push current_thread_info()->sysenter_return to the stack. * A tiny bit of offset fixup is necessary - 4*4 means the 4 words * pushed above; +8 corresponds to copy_thread's esp0 setting. */ pushl (TI_sysenter_return-THREAD_SIZE+8+4*4)(%esp) -#else - pushl $SYSENTER_RETURN -#endif CFI_ADJUST_CFA_OFFSET 4 CFI_REL_OFFSET eip, 0 @@ -342,7 +338,7 @@ sysenter_past_esp: jae syscall_badsys call *sys_call_table(,%eax,4) movl %eax,PT_EAX(%esp) - DISABLE_INTERRUPTS(CLBR_ECX|CLBR_EDX) + DISABLE_INTERRUPTS(CLBR_ANY) TRACE_IRQS_OFF movl TI_flags(%ebp), %ecx testw $_TIF_ALLWORK_MASK, %cx @@ -560,9 +556,7 @@ END(syscall_badsys) #define FIXUP_ESPFIX_STACK \ /* since we are on a wrong stack, we cant make it a C code :( */ \ - movl %fs:PDA_cpu, %ebx; \ - PER_CPU(cpu_gdt_descr, %ebx); \ - movl GDS_address(%ebx), %ebx; \ + PER_CPU(gdt_page, %ebx); \ GET_DESC_BASE(GDT_ENTRY_ESPFIX_SS, %ebx, %eax, %ax, %al, %ah); \ addl %esp, %eax; \ pushl $__KERNEL_DS; \ @@ -635,7 +629,7 @@ ENTRY(name) \ SAVE_ALL; \ TRACE_IRQS_OFF \ movl %esp,%eax; \ - call smp_/**/name; \ + call smp_##name; \ jmp ret_from_intr; \ CFI_ENDPROC; \ ENDPROC(name) @@ -643,11 +637,6 @@ ENDPROC(name) /* The include is where all of the SMP etc. interrupts come from */ #include "entry_arch.h" -/* This alternate entry is needed because we hijack the apic LVTT */ -#if defined(CONFIG_VMI) && defined(CONFIG_X86_LOCAL_APIC) -BUILD_INTERRUPT(apic_vmi_timer_interrupt,LOCAL_TIMER_VECTOR) -#endif - KPROBE_ENTRY(page_fault) RING0_EC_FRAME pushl $do_page_fault @@ -686,7 +675,7 @@ error_code: pushl %fs CFI_ADJUST_CFA_OFFSET 4 /*CFI_REL_OFFSET fs, 0*/ - movl $(__KERNEL_PDA), %ecx + movl $(__KERNEL_PERCPU), %ecx movl %ecx, %fs UNWIND_ESPFIX_STACK popl %ecx diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S index 3fa7f93..9b10af6 100644 --- a/arch/i386/kernel/head.S +++ b/arch/i386/kernel/head.S @@ -34,17 +34,32 @@ /* * This is how much memory *in addition to the memory covered up to - * and including _end* we need mapped initially. We need one bit for - * each possible page, but only in low memory, which means - * 2^32/4096/8 = 128K worst case (4G/4G split.) + * and including _end* we need mapped initially. + * We need: + * - one bit for each possible page, but only in low memory, which means + * 2^32/4096/8 = 128K worst case (4G/4G split.) + * - enough space to map all low memory, which means + * (2^32/4096) / 1024 pages (worst case, non PAE) + * (2^32/4096) / 512 + 4 pages (worst case for PAE) + * - a few pages for allocator use before the kernel pagetable has + * been set up * * Modulo rounding, each megabyte assigned here requires a kilobyte of * memory, which is currently unreclaimed. * * This should be a multiple of a page. */ -#define INIT_MAP_BEYOND_END (128*1024) +LOW_PAGES = 1<<(32-PAGE_SHIFT_asm) +#if PTRS_PER_PMD > 1 +PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PMD) + PTRS_PER_PGD +#else +PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PGD) +#endif +BOOTBITMAP_SIZE = LOW_PAGES / 8 +ALLOCATOR_SLOP = 4 + +INIT_MAP_BEYOND_END = BOOTBITMAP_SIZE + (PAGE_TABLE_SIZE + ALLOCATOR_SLOP)*PAGE_SIZE_asm /* * 32-bit kernel entrypoint; only used by the boot CPU. On entry, @@ -147,8 +162,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20); /* * Non-boot CPU entry point; entered from trampoline.S * We can't lgdt here, because lgdt itself uses a data segment, but - * we know the trampoline has already loaded the boot_gdt_table GDT - * for us. + * we know the trampoline has already loaded the boot_gdt for us. * * If cpu hotplug is not supported then this code can go in init section * which will be freed later @@ -318,12 +332,12 @@ is386: movl $2,%ecx # set MP movl %eax,%cr0 call check_x87 - call setup_pda lgdt early_gdt_descr lidt idt_descr ljmp $(__KERNEL_CS),$1f 1: movl $(__KERNEL_DS),%eax # reload all the segment registers movl %eax,%ss # after changing gdt. + movl %eax,%fs # gets reset once there's real percpu movl $(__USER_DS),%eax # DS/ES contains default USER segment movl %eax,%ds @@ -333,16 +347,17 @@ is386: movl $2,%ecx # set MP movl %eax,%gs lldt %ax - movl $(__KERNEL_PDA),%eax - mov %eax,%fs - cld # gcc2 wants the direction flag cleared at all times pushl $0 # fake return address for unwinder #ifdef CONFIG_SMP movb ready, %cl movb $1, ready cmpb $0,%cl # the first CPU calls start_kernel - jne initialize_secondary # all other CPUs call initialize_secondary + je 1f + movl $(__KERNEL_PERCPU), %eax + movl %eax,%fs # set this cpu's percpu + jmp initialize_secondary # all other CPUs call initialize_secondary +1: #endif /* CONFIG_SMP */ jmp start_kernel @@ -366,23 +381,6 @@ check_x87: ret /* - * Point the GDT at this CPU's PDA. On boot this will be - * cpu_gdt_table and boot_pda; for secondary CPUs, these will be - * that CPU's GDT and PDA. - */ -ENTRY(setup_pda) - /* get the PDA pointer */ - movl start_pda, %eax - - /* slot the PDA address into the GDT */ - mov early_gdt_descr+2, %ecx - mov %ax, (__KERNEL_PDA+0+2)(%ecx) /* base & 0x0000ffff */ - shr $16, %eax - mov %al, (__KERNEL_PDA+4+0)(%ecx) /* base & 0x00ff0000 */ - mov %ah, (__KERNEL_PDA+4+3)(%ecx) /* base & 0xff000000 */ - ret - -/* * setup_idt * * sets up a idt with 256 entries pointing to @@ -554,9 +552,6 @@ ENTRY(empty_zero_page) * This starts the data section. */ .data -ENTRY(start_pda) - .long boot_pda - ENTRY(stack_start) .long init_thread_union+THREAD_SIZE .long __BOOT_DS @@ -588,7 +583,7 @@ fault_msg: .word 0 # 32 bit align gdt_desc.address boot_gdt_descr: .word __BOOT_DS+7 - .long boot_gdt_table - __PAGE_OFFSET + .long boot_gdt - __PAGE_OFFSET .word 0 # 32-bit align idt_desc.address idt_descr: @@ -599,67 +594,14 @@ idt_descr: .word 0 # 32 bit align gdt_desc.address ENTRY(early_gdt_descr) .word GDT_ENTRIES*8-1 - .long cpu_gdt_table + .long per_cpu__gdt_page /* Overwritten for secondary CPUs */ /* - * The boot_gdt_table must mirror the equivalent in setup.S and is + * The boot_gdt must mirror the equivalent in setup.S and is * used only for booting. */ .align L1_CACHE_BYTES -ENTRY(boot_gdt_table) +ENTRY(boot_gdt) .fill GDT_ENTRY_BOOT_CS,8,0 .quad 0x00cf9a000000ffff /* kernel 4GB code at 0x00000000 */ .quad 0x00cf92000000ffff /* kernel 4GB data at 0x00000000 */ - -/* - * The Global Descriptor Table contains 28 quadwords, per-CPU. - */ - .align L1_CACHE_BYTES -ENTRY(cpu_gdt_table) - .quad 0x0000000000000000 /* NULL descriptor */ - .quad 0x0000000000000000 /* 0x0b reserved */ - .quad 0x0000000000000000 /* 0x13 reserved */ - .quad 0x0000000000000000 /* 0x1b reserved */ - .quad 0x0000000000000000 /* 0x20 unused */ - .quad 0x0000000000000000 /* 0x28 unused */ - .quad 0x0000000000000000 /* 0x33 TLS entry 1 */ - .quad 0x0000000000000000 /* 0x3b TLS entry 2 */ - .quad 0x0000000000000000 /* 0x43 TLS entry 3 */ - .quad 0x0000000000000000 /* 0x4b reserved */ - .quad 0x0000000000000000 /* 0x53 reserved */ - .quad 0x0000000000000000 /* 0x5b reserved */ - - .quad 0x00cf9a000000ffff /* 0x60 kernel 4GB code at 0x00000000 */ - .quad 0x00cf92000000ffff /* 0x68 kernel 4GB data at 0x00000000 */ - .quad 0x00cffa000000ffff /* 0x73 user 4GB code at 0x00000000 */ - .quad 0x00cff2000000ffff /* 0x7b user 4GB data at 0x00000000 */ - - .quad 0x0000000000000000 /* 0x80 TSS descriptor */ - .quad 0x0000000000000000 /* 0x88 LDT descriptor */ - - /* - * Segments used for calling PnP BIOS have byte granularity. - * They code segments and data segments have fixed 64k limits, - * the transfer segment sizes are set at run time. - */ - .quad 0x00409a000000ffff /* 0x90 32-bit code */ - .quad 0x00009a000000ffff /* 0x98 16-bit code */ - .quad 0x000092000000ffff /* 0xa0 16-bit data */ - .quad 0x0000920000000000 /* 0xa8 16-bit data */ - .quad 0x0000920000000000 /* 0xb0 16-bit data */ - - /* - * The APM segments have byte granularity and their bases - * are set at run time. All have 64k limits. - */ - .quad 0x00409a000000ffff /* 0xb8 APM CS code */ - .quad 0x00009a000000ffff /* 0xc0 APM CS 16 code (16 bit) */ - .quad 0x004092000000ffff /* 0xc8 APM DS data */ - - .quad 0x00c0920000000000 /* 0xd0 - ESPFIX SS */ - .quad 0x00cf92000000ffff /* 0xd8 - PDA */ - .quad 0x0000000000000000 /* 0xe0 - unused */ - .quad 0x0000000000000000 /* 0xe8 - unused */ - .quad 0x0000000000000000 /* 0xf0 - unused */ - .quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */ - diff --git a/arch/i386/kernel/i386_ksyms.c b/arch/i386/kernel/i386_ksyms.c index 4afe26e..e3d4b73 100644 --- a/arch/i386/kernel/i386_ksyms.c +++ b/arch/i386/kernel/i386_ksyms.c @@ -28,5 +28,3 @@ EXPORT_SYMBOL(__read_lock_failed); #endif EXPORT_SYMBOL(csum_partial); - -EXPORT_SYMBOL(_proxy_pda); diff --git a/arch/i386/kernel/i8253.c b/arch/i386/kernel/i8253.c index 10cef5c..f8a3c40 100644 --- a/arch/i386/kernel/i8253.c +++ b/arch/i386/kernel/i8253.c @@ -110,7 +110,7 @@ void __init setup_pit_timer(void) * Start pit with the boot cpu mask and make it global after the * IO_APIC has been initialized. */ - pit_clockevent.cpumask = cpumask_of_cpu(0); + pit_clockevent.cpumask = cpumask_of_cpu(smp_processor_id()); pit_clockevent.mult = div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC, 32); pit_clockevent.max_delta_ns = clockevent_delta2ns(0x7FFF, &pit_clockevent); diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c index b3ab8ff..1b623cd 100644 --- a/arch/i386/kernel/io_apic.c +++ b/arch/i386/kernel/io_apic.c @@ -35,6 +35,7 @@ #include <linux/msi.h> #include <linux/htirq.h> #include <linux/freezer.h> +#include <linux/kthread.h> #include <asm/io.h> #include <asm/smp.h> @@ -661,8 +662,6 @@ static int balanced_irq(void *unused) unsigned long prev_balance_time = jiffies; long time_remaining = balanced_irq_interval; - daemonize("kirqd"); - /* push everything to CPU 0 to give us a starting point. */ for (i = 0 ; i < NR_IRQS ; i++) { irq_desc[i].pending_mask = cpumask_of_cpu(0); @@ -722,10 +721,9 @@ static int __init balanced_irq_init(void) } printk(KERN_INFO "Starting balanced_irq\n"); - if (kernel_thread(balanced_irq, NULL, CLONE_KERNEL) >= 0) + if (!IS_ERR(kthread_run(balanced_irq, NULL, "kirqd"))) return 0; - else - printk(KERN_ERR "balanced_irq_init: failed to spawn balanced_irq"); + printk(KERN_ERR "balanced_irq_init: failed to spawn balanced_irq"); failed: for_each_possible_cpu(i) { kfree(irq_cpu_data[i].irq_delta); @@ -1403,10 +1401,6 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, in enable_8259A_irq(0); } -static inline void UNEXPECTED_IO_APIC(void) -{ -} - void __init print_IO_APIC(void) { int apic, i; @@ -1446,34 +1440,12 @@ void __init print_IO_APIC(void) printk(KERN_DEBUG "....... : physical APIC id: %02X\n", reg_00.bits.ID); printk(KERN_DEBUG "....... : Delivery Type: %X\n", reg_00.bits.delivery_type); printk(KERN_DEBUG "....... : LTS : %X\n", reg_00.bits.LTS); - if (reg_00.bits.ID >= get_physical_broadcast()) - UNEXPECTED_IO_APIC(); - if (reg_00.bits.__reserved_1 || reg_00.bits.__reserved_2) - UNEXPECTED_IO_APIC(); printk(KERN_DEBUG ".... register #01: %08X\n", reg_01.raw); printk(KERN_DEBUG "....... : max redirection entries: %04X\n", reg_01.bits.entries); - if ( (reg_01.bits.entries != 0x0f) && /* older (Neptune) boards */ - (reg_01.bits.entries != 0x17) && /* typical ISA+PCI boards */ - (reg_01.bits.entries != 0x1b) && /* Compaq Proliant boards */ - (reg_01.bits.entries != 0x1f) && /* dual Xeon boards */ - (reg_01.bits.entries != 0x22) && /* bigger Xeon boards */ - (reg_01.bits.entries != 0x2E) && - (reg_01.bits.entries != 0x3F) - ) - UNEXPECTED_IO_APIC(); printk(KERN_DEBUG "....... : PRQ implemented: %X\n", reg_01.bits.PRQ); printk(KERN_DEBUG "....... : IO APIC version: %04X\n", reg_01.bits.version); - if ( (reg_01.bits.version != 0x01) && /* 82489DX IO-APICs */ - (reg_01.bits.version != 0x10) && /* oldest IO-APICs */ - (reg_01.bits.version != 0x11) && /* Pentium/Pro IO-APICs */ - (reg_01.bits.version != 0x13) && /* Xeon IO-APICs */ - (reg_01.bits.version != 0x20) /* Intel P64H (82806 AA) */ - ) - UNEXPECTED_IO_APIC(); - if (reg_01.bits.__reserved_1 || reg_01.bits.__reserved_2) - UNEXPECTED_IO_APIC(); /* * Some Intel chipsets with IO APIC VERSION of 0x1? don't have reg_02, @@ -1483,8 +1455,6 @@ void __init print_IO_APIC(void) if (reg_01.bits.version >= 0x10 && reg_02.raw != reg_01.raw) { printk(KERN_DEBUG ".... register #02: %08X\n", reg_02.raw); printk(KERN_DEBUG "....... : arbitration: %02X\n", reg_02.bits.arbitration); - if (reg_02.bits.__reserved_1 || reg_02.bits.__reserved_2) - UNEXPECTED_IO_APIC(); } /* @@ -1496,8 +1466,6 @@ void __init print_IO_APIC(void) reg_03.raw != reg_01.raw) { printk(KERN_DEBUG ".... register #03: %08X\n", reg_03.raw); printk(KERN_DEBUG "....... : Boot DT : %X\n", reg_03.bits.boot_DT); - if (reg_03.bits.__reserved_1) - UNEXPECTED_IO_APIC(); } printk(KERN_DEBUG ".... IRQ redirection table:\n"); @@ -2611,19 +2579,19 @@ int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc) if (irq < 0) return irq; - set_irq_msi(irq, desc); ret = msi_compose_msg(dev, irq, &msg); if (ret < 0) { destroy_irq(irq); return ret; } + set_irq_msi(irq, desc); write_msi_msg(irq, &msg); set_irq_chip_and_handler_name(irq, &msi_chip, handle_edge_irq, "edge"); - return irq; + return 0; } void arch_teardown_msi_irq(unsigned int irq) diff --git a/arch/i386/kernel/ioport.c b/arch/i386/kernel/ioport.c index 498e8bc..d1e42e0d 100644 --- a/arch/i386/kernel/ioport.c +++ b/arch/i386/kernel/ioport.c @@ -16,6 +16,7 @@ #include <linux/stddef.h> #include <linux/slab.h> #include <linux/thread_info.h> +#include <linux/syscalls.h> /* Set EXTENT bits starting at BASE in BITMAP to value TURN_ON. */ static void set_bitmap(unsigned long *bitmap, unsigned int base, unsigned int extent, int new_value) @@ -113,7 +114,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on) * Reset the owner so that a process switch will not set * tss->io_bitmap_base to IO_BITMAP_OFFSET. */ - tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY; + tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY; tss->io_bitmap_owner = NULL; put_cpu(); diff --git a/arch/i386/kernel/irq.c b/arch/i386/kernel/irq.c index 8db8d51..d2daf67 100644 --- a/arch/i386/kernel/irq.c +++ b/arch/i386/kernel/irq.c @@ -24,6 +24,9 @@ DEFINE_PER_CPU(irq_cpustat_t, irq_stat) ____cacheline_internodealigned_in_smp; EXPORT_PER_CPU_SYMBOL(irq_stat); +DEFINE_PER_CPU(struct pt_regs *, irq_regs); +EXPORT_PER_CPU_SYMBOL(irq_regs); + /* * 'what should we do if we get a hw irq event on an illegal vector'. * each architecture has to answer this themselves. diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c index 4f5983c..0952ecc 100644 --- a/arch/i386/kernel/mpparse.c +++ b/arch/i386/kernel/mpparse.c @@ -477,7 +477,7 @@ static int __init smp_read_mpc(struct mp_config_table *mpc) } ++mpc_record; } - clustered_apic_check(); + setup_apic_routing(); if (!num_processors) printk(KERN_ERR "SMP mptable: no processors registered!\n"); return num_processors; diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index 84c3497..33cf2f3 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -20,7 +20,6 @@ #include <linux/sysdev.h> #include <linux/sysctl.h> #include <linux/percpu.h> -#include <linux/dmi.h> #include <linux/kprobes.h> #include <linux/cpumask.h> #include <linux/kernel_stat.h> @@ -28,30 +27,14 @@ #include <asm/smp.h> #include <asm/nmi.h> #include <asm/kdebug.h> -#include <asm/intel_arch_perfmon.h> #include "mach_traps.h" int unknown_nmi_panic; int nmi_watchdog_enabled; -/* perfctr_nmi_owner tracks the ownership of the perfctr registers: - * evtsel_nmi_owner tracks the ownership of the event selection - * - different performance counters/ event selection may be reserved for - * different subsystems this reservation system just tries to coordinate - * things a little - */ - -/* this number is calculated from Intel's MSR_P4_CRU_ESCR5 register and it's - * offset from MSR_P4_BSU_ESCR0. It will be the max for all platforms (for now) - */ -#define NMI_MAX_COUNTER_BITS 66 -#define NMI_MAX_COUNTER_LONGS BITS_TO_LONGS(NMI_MAX_COUNTER_BITS) - -static DEFINE_PER_CPU(unsigned long, perfctr_nmi_owner[NMI_MAX_COUNTER_LONGS]); -static DEFINE_PER_CPU(unsigned long, evntsel_nmi_owner[NMI_MAX_COUNTER_LONGS]); - static cpumask_t backtrace_mask = CPU_MASK_NONE; + /* nmi_active: * >0: the lapic NMI watchdog is active, but can be disabled * <0: the lapic NMI watchdog has not been set up, and cannot @@ -63,206 +46,11 @@ atomic_t nmi_active = ATOMIC_INIT(0); /* oprofile uses this */ unsigned int nmi_watchdog = NMI_DEFAULT; static unsigned int nmi_hz = HZ; -struct nmi_watchdog_ctlblk { - int enabled; - u64 check_bit; - unsigned int cccr_msr; - unsigned int perfctr_msr; /* the MSR to reset in NMI handler */ - unsigned int evntsel_msr; /* the MSR to select the events to handle */ -}; -static DEFINE_PER_CPU(struct nmi_watchdog_ctlblk, nmi_watchdog_ctlblk); +static DEFINE_PER_CPU(short, wd_enabled); /* local prototypes */ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu); -extern void show_registers(struct pt_regs *regs); -extern int unknown_nmi_panic; - -/* converts an msr to an appropriate reservation bit */ -static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr) -{ - /* returns the bit offset of the performance counter register */ - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - return (msr - MSR_K7_PERFCTR0); - case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) - return (msr - MSR_ARCH_PERFMON_PERFCTR0); - - switch (boot_cpu_data.x86) { - case 6: - return (msr - MSR_P6_PERFCTR0); - case 15: - return (msr - MSR_P4_BPU_PERFCTR0); - } - } - return 0; -} - -/* converts an msr to an appropriate reservation bit */ -static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr) -{ - /* returns the bit offset of the event selection register */ - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - return (msr - MSR_K7_EVNTSEL0); - case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) - return (msr - MSR_ARCH_PERFMON_EVENTSEL0); - - switch (boot_cpu_data.x86) { - case 6: - return (msr - MSR_P6_EVNTSEL0); - case 15: - return (msr - MSR_P4_BSU_ESCR0); - } - } - return 0; -} - -/* checks for a bit availability (hack for oprofile) */ -int avail_to_resrv_perfctr_nmi_bit(unsigned int counter) -{ - int cpu; - BUG_ON(counter > NMI_MAX_COUNTER_BITS); - for_each_possible_cpu (cpu) { - if (test_bit(counter, &per_cpu(perfctr_nmi_owner, cpu)[0])) - return 0; - } - return 1; -} - -/* checks the an msr for availability */ -int avail_to_resrv_perfctr_nmi(unsigned int msr) -{ - unsigned int counter; - int cpu; - - counter = nmi_perfctr_msr_to_bit(msr); - BUG_ON(counter > NMI_MAX_COUNTER_BITS); - - for_each_possible_cpu (cpu) { - if (test_bit(counter, &per_cpu(perfctr_nmi_owner, cpu)[0])) - return 0; - } - return 1; -} - -static int __reserve_perfctr_nmi(int cpu, unsigned int msr) -{ - unsigned int counter; - if (cpu < 0) - cpu = smp_processor_id(); - - counter = nmi_perfctr_msr_to_bit(msr); - BUG_ON(counter > NMI_MAX_COUNTER_BITS); - - if (!test_and_set_bit(counter, &per_cpu(perfctr_nmi_owner, cpu)[0])) - return 1; - return 0; -} - -static void __release_perfctr_nmi(int cpu, unsigned int msr) -{ - unsigned int counter; - if (cpu < 0) - cpu = smp_processor_id(); - - counter = nmi_perfctr_msr_to_bit(msr); - BUG_ON(counter > NMI_MAX_COUNTER_BITS); - - clear_bit(counter, &per_cpu(perfctr_nmi_owner, cpu)[0]); -} - -int reserve_perfctr_nmi(unsigned int msr) -{ - int cpu, i; - for_each_possible_cpu (cpu) { - if (!__reserve_perfctr_nmi(cpu, msr)) { - for_each_possible_cpu (i) { - if (i >= cpu) - break; - __release_perfctr_nmi(i, msr); - } - return 0; - } - } - return 1; -} - -void release_perfctr_nmi(unsigned int msr) -{ - int cpu; - for_each_possible_cpu (cpu) { - __release_perfctr_nmi(cpu, msr); - } -} - -int __reserve_evntsel_nmi(int cpu, unsigned int msr) -{ - unsigned int counter; - if (cpu < 0) - cpu = smp_processor_id(); - - counter = nmi_evntsel_msr_to_bit(msr); - BUG_ON(counter > NMI_MAX_COUNTER_BITS); - - if (!test_and_set_bit(counter, &per_cpu(evntsel_nmi_owner, cpu)[0])) - return 1; - return 0; -} - -static void __release_evntsel_nmi(int cpu, unsigned int msr) -{ - unsigned int counter; - if (cpu < 0) - cpu = smp_processor_id(); - - counter = nmi_evntsel_msr_to_bit(msr); - BUG_ON(counter > NMI_MAX_COUNTER_BITS); - - clear_bit(counter, &per_cpu(evntsel_nmi_owner, cpu)[0]); -} - -int reserve_evntsel_nmi(unsigned int msr) -{ - int cpu, i; - for_each_possible_cpu (cpu) { - if (!__reserve_evntsel_nmi(cpu, msr)) { - for_each_possible_cpu (i) { - if (i >= cpu) - break; - __release_evntsel_nmi(i, msr); - } - return 0; - } - } - return 1; -} - -void release_evntsel_nmi(unsigned int msr) -{ - int cpu; - for_each_possible_cpu (cpu) { - __release_evntsel_nmi(cpu, msr); - } -} - -static __cpuinit inline int nmi_known_cpu(void) -{ - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - return ((boot_cpu_data.x86 == 15) || (boot_cpu_data.x86 == 6) - || (boot_cpu_data.x86 == 16)); - case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) - return 1; - else - return ((boot_cpu_data.x86 == 15) || (boot_cpu_data.x86 == 6)); - } - return 0; -} - static int endflag __initdata = 0; #ifdef CONFIG_SMP @@ -284,28 +72,6 @@ static __init void nmi_cpu_busy(void *data) } #endif -static unsigned int adjust_for_32bit_ctr(unsigned int hz) -{ - u64 counter_val; - unsigned int retval = hz; - - /* - * On Intel CPUs with P6/ARCH_PERFMON only 32 bits in the counter - * are writable, with higher bits sign extending from bit 31. - * So, we can only program the counter with 31 bit values and - * 32nd bit should be 1, for 33.. to be 1. - * Find the appropriate nmi_hz - */ - counter_val = (u64)cpu_khz * 1000; - do_div(counter_val, retval); - if (counter_val > 0x7fffffffULL) { - u64 count = (u64)cpu_khz * 1000; - do_div(count, 0x7fffffffUL); - retval = count + 1; - } - return retval; -} - static int __init check_nmi_watchdog(void) { unsigned int *prev_nmi_count; @@ -338,14 +104,14 @@ static int __init check_nmi_watchdog(void) if (!cpu_isset(cpu, cpu_callin_map)) continue; #endif - if (!per_cpu(nmi_watchdog_ctlblk, cpu).enabled) + if (!per_cpu(wd_enabled, cpu)) continue; if (nmi_count(cpu) - prev_nmi_count[cpu] <= 5) { printk("CPU#%d: NMI appears to be stuck (%d->%d)!\n", cpu, prev_nmi_count[cpu], nmi_count(cpu)); - per_cpu(nmi_watchdog_ctlblk, cpu).enabled = 0; + per_cpu(wd_enabled, cpu) = 0; atomic_dec(&nmi_active); } } @@ -359,16 +125,8 @@ static int __init check_nmi_watchdog(void) /* now that we know it works we can reduce NMI frequency to something more reasonable; makes a difference in some configs */ - if (nmi_watchdog == NMI_LOCAL_APIC) { - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - nmi_hz = 1; - - if (wd->perfctr_msr == MSR_P6_PERFCTR0 || - wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0) { - nmi_hz = adjust_for_32bit_ctr(nmi_hz); - } - } + if (nmi_watchdog == NMI_LOCAL_APIC) + nmi_hz = lapic_adjust_nmi_hz(1); kfree(prev_nmi_count); return 0; @@ -391,85 +149,8 @@ static int __init setup_nmi_watchdog(char *str) __setup("nmi_watchdog=", setup_nmi_watchdog); -static void disable_lapic_nmi_watchdog(void) -{ - BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); - - if (atomic_read(&nmi_active) <= 0) - return; - - on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); - - BUG_ON(atomic_read(&nmi_active) != 0); -} - -static void enable_lapic_nmi_watchdog(void) -{ - BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); - - /* are we already enabled */ - if (atomic_read(&nmi_active) != 0) - return; - - /* are we lapic aware */ - if (nmi_known_cpu() <= 0) - return; - on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); - touch_nmi_watchdog(); -} - -void disable_timer_nmi_watchdog(void) -{ - BUG_ON(nmi_watchdog != NMI_IO_APIC); - - if (atomic_read(&nmi_active) <= 0) - return; - - disable_irq(0); - on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); - - BUG_ON(atomic_read(&nmi_active) != 0); -} - -void enable_timer_nmi_watchdog(void) -{ - BUG_ON(nmi_watchdog != NMI_IO_APIC); - - if (atomic_read(&nmi_active) == 0) { - touch_nmi_watchdog(); - on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); - enable_irq(0); - } -} - -static void __acpi_nmi_disable(void *__unused) -{ - apic_write_around(APIC_LVT0, APIC_DM_NMI | APIC_LVT_MASKED); -} - -/* - * Disable timer based NMIs on all CPUs: - */ -void acpi_nmi_disable(void) -{ - if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC) - on_each_cpu(__acpi_nmi_disable, NULL, 0, 1); -} - -static void __acpi_nmi_enable(void *__unused) -{ - apic_write_around(APIC_LVT0, APIC_DM_NMI); -} - -/* - * Enable timer based NMIs on all CPUs: - */ -void acpi_nmi_enable(void) -{ - if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC) - on_each_cpu(__acpi_nmi_enable, NULL, 0, 1); -} +/* Suspend/resume support */ #ifdef CONFIG_PM @@ -516,7 +197,7 @@ static int __init init_lapic_nmi_sysfs(void) if (nmi_watchdog != NMI_LOCAL_APIC) return 0; - if ( atomic_read(&nmi_active) < 0 ) + if (atomic_read(&nmi_active) < 0) return 0; error = sysdev_class_register(&nmi_sysclass); @@ -529,433 +210,69 @@ late_initcall(init_lapic_nmi_sysfs); #endif /* CONFIG_PM */ -/* - * Activate the NMI watchdog via the local APIC. - * Original code written by Keith Owens. - */ - -static void write_watchdog_counter(unsigned int perfctr_msr, const char *descr) -{ - u64 count = (u64)cpu_khz * 1000; - - do_div(count, nmi_hz); - if(descr) - Dprintk("setting %s to -0x%08Lx\n", descr, count); - wrmsrl(perfctr_msr, 0 - count); -} - -static void write_watchdog_counter32(unsigned int perfctr_msr, - const char *descr) -{ - u64 count = (u64)cpu_khz * 1000; - - do_div(count, nmi_hz); - if(descr) - Dprintk("setting %s to -0x%08Lx\n", descr, count); - wrmsr(perfctr_msr, (u32)(-count), 0); -} - -/* Note that these events don't tick when the CPU idles. This means - the frequency varies with CPU load. */ - -#define K7_EVNTSEL_ENABLE (1 << 22) -#define K7_EVNTSEL_INT (1 << 20) -#define K7_EVNTSEL_OS (1 << 17) -#define K7_EVNTSEL_USR (1 << 16) -#define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING 0x76 -#define K7_NMI_EVENT K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING - -static int setup_k7_watchdog(void) -{ - unsigned int perfctr_msr, evntsel_msr; - unsigned int evntsel; - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - perfctr_msr = MSR_K7_PERFCTR0; - evntsel_msr = MSR_K7_EVNTSEL0; - if (!__reserve_perfctr_nmi(-1, perfctr_msr)) - goto fail; - - if (!__reserve_evntsel_nmi(-1, evntsel_msr)) - goto fail1; - - wrmsrl(perfctr_msr, 0UL); - - evntsel = K7_EVNTSEL_INT - | K7_EVNTSEL_OS - | K7_EVNTSEL_USR - | K7_NMI_EVENT; - - /* setup the timer */ - wrmsr(evntsel_msr, evntsel, 0); - write_watchdog_counter(perfctr_msr, "K7_PERFCTR0"); - apic_write(APIC_LVTPC, APIC_DM_NMI); - evntsel |= K7_EVNTSEL_ENABLE; - wrmsr(evntsel_msr, evntsel, 0); - - wd->perfctr_msr = perfctr_msr; - wd->evntsel_msr = evntsel_msr; - wd->cccr_msr = 0; //unused - wd->check_bit = 1ULL<<63; - return 1; -fail1: - __release_perfctr_nmi(-1, perfctr_msr); -fail: - return 0; -} - -static void stop_k7_watchdog(void) -{ - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - wrmsr(wd->evntsel_msr, 0, 0); - - __release_evntsel_nmi(-1, wd->evntsel_msr); - __release_perfctr_nmi(-1, wd->perfctr_msr); -} - -#define P6_EVNTSEL0_ENABLE (1 << 22) -#define P6_EVNTSEL_INT (1 << 20) -#define P6_EVNTSEL_OS (1 << 17) -#define P6_EVNTSEL_USR (1 << 16) -#define P6_EVENT_CPU_CLOCKS_NOT_HALTED 0x79 -#define P6_NMI_EVENT P6_EVENT_CPU_CLOCKS_NOT_HALTED - -static int setup_p6_watchdog(void) -{ - unsigned int perfctr_msr, evntsel_msr; - unsigned int evntsel; - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - perfctr_msr = MSR_P6_PERFCTR0; - evntsel_msr = MSR_P6_EVNTSEL0; - if (!__reserve_perfctr_nmi(-1, perfctr_msr)) - goto fail; - - if (!__reserve_evntsel_nmi(-1, evntsel_msr)) - goto fail1; - - wrmsrl(perfctr_msr, 0UL); - - evntsel = P6_EVNTSEL_INT - | P6_EVNTSEL_OS - | P6_EVNTSEL_USR - | P6_NMI_EVENT; - - /* setup the timer */ - wrmsr(evntsel_msr, evntsel, 0); - nmi_hz = adjust_for_32bit_ctr(nmi_hz); - write_watchdog_counter32(perfctr_msr, "P6_PERFCTR0"); - apic_write(APIC_LVTPC, APIC_DM_NMI); - evntsel |= P6_EVNTSEL0_ENABLE; - wrmsr(evntsel_msr, evntsel, 0); - - wd->perfctr_msr = perfctr_msr; - wd->evntsel_msr = evntsel_msr; - wd->cccr_msr = 0; //unused - wd->check_bit = 1ULL<<39; - return 1; -fail1: - __release_perfctr_nmi(-1, perfctr_msr); -fail: - return 0; -} - -static void stop_p6_watchdog(void) -{ - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - wrmsr(wd->evntsel_msr, 0, 0); - - __release_evntsel_nmi(-1, wd->evntsel_msr); - __release_perfctr_nmi(-1, wd->perfctr_msr); -} - -/* Note that these events don't tick when the CPU idles. This means - the frequency varies with CPU load. */ - -#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7) -#define P4_ESCR_EVENT_SELECT(N) ((N)<<25) -#define P4_ESCR_OS (1<<3) -#define P4_ESCR_USR (1<<2) -#define P4_CCCR_OVF_PMI0 (1<<26) -#define P4_CCCR_OVF_PMI1 (1<<27) -#define P4_CCCR_THRESHOLD(N) ((N)<<20) -#define P4_CCCR_COMPLEMENT (1<<19) -#define P4_CCCR_COMPARE (1<<18) -#define P4_CCCR_REQUIRED (3<<16) -#define P4_CCCR_ESCR_SELECT(N) ((N)<<13) -#define P4_CCCR_ENABLE (1<<12) -#define P4_CCCR_OVF (1<<31) -/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter - CRU_ESCR0 (with any non-null event selector) through a complemented - max threshold. [IA32-Vol3, Section 14.9.9] */ - -static int setup_p4_watchdog(void) +static void __acpi_nmi_enable(void *__unused) { - unsigned int perfctr_msr, evntsel_msr, cccr_msr; - unsigned int evntsel, cccr_val; - unsigned int misc_enable, dummy; - unsigned int ht_num; - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - rdmsr(MSR_IA32_MISC_ENABLE, misc_enable, dummy); - if (!(misc_enable & MSR_P4_MISC_ENABLE_PERF_AVAIL)) - return 0; - -#ifdef CONFIG_SMP - /* detect which hyperthread we are on */ - if (smp_num_siblings == 2) { - unsigned int ebx, apicid; - - ebx = cpuid_ebx(1); - apicid = (ebx >> 24) & 0xff; - ht_num = apicid & 1; - } else -#endif - ht_num = 0; - - /* performance counters are shared resources - * assign each hyperthread its own set - * (re-use the ESCR0 register, seems safe - * and keeps the cccr_val the same) - */ - if (!ht_num) { - /* logical cpu 0 */ - perfctr_msr = MSR_P4_IQ_PERFCTR0; - evntsel_msr = MSR_P4_CRU_ESCR0; - cccr_msr = MSR_P4_IQ_CCCR0; - cccr_val = P4_CCCR_OVF_PMI0 | P4_CCCR_ESCR_SELECT(4); - } else { - /* logical cpu 1 */ - perfctr_msr = MSR_P4_IQ_PERFCTR1; - evntsel_msr = MSR_P4_CRU_ESCR0; - cccr_msr = MSR_P4_IQ_CCCR1; - cccr_val = P4_CCCR_OVF_PMI1 | P4_CCCR_ESCR_SELECT(4); - } - - if (!__reserve_perfctr_nmi(-1, perfctr_msr)) - goto fail; - - if (!__reserve_evntsel_nmi(-1, evntsel_msr)) - goto fail1; - - evntsel = P4_ESCR_EVENT_SELECT(0x3F) - | P4_ESCR_OS - | P4_ESCR_USR; - - cccr_val |= P4_CCCR_THRESHOLD(15) - | P4_CCCR_COMPLEMENT - | P4_CCCR_COMPARE - | P4_CCCR_REQUIRED; - - wrmsr(evntsel_msr, evntsel, 0); - wrmsr(cccr_msr, cccr_val, 0); - write_watchdog_counter(perfctr_msr, "P4_IQ_COUNTER0"); - apic_write(APIC_LVTPC, APIC_DM_NMI); - cccr_val |= P4_CCCR_ENABLE; - wrmsr(cccr_msr, cccr_val, 0); - wd->perfctr_msr = perfctr_msr; - wd->evntsel_msr = evntsel_msr; - wd->cccr_msr = cccr_msr; - wd->check_bit = 1ULL<<39; - return 1; -fail1: - __release_perfctr_nmi(-1, perfctr_msr); -fail: - return 0; + apic_write_around(APIC_LVT0, APIC_DM_NMI); } -static void stop_p4_watchdog(void) +/* + * Enable timer based NMIs on all CPUs: + */ +void acpi_nmi_enable(void) { - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - wrmsr(wd->cccr_msr, 0, 0); - wrmsr(wd->evntsel_msr, 0, 0); - - __release_evntsel_nmi(-1, wd->evntsel_msr); - __release_perfctr_nmi(-1, wd->perfctr_msr); + if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC) + on_each_cpu(__acpi_nmi_enable, NULL, 0, 1); } -#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL -#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK - -static int setup_intel_arch_watchdog(void) +static void __acpi_nmi_disable(void *__unused) { - unsigned int ebx; - union cpuid10_eax eax; - unsigned int unused; - unsigned int perfctr_msr, evntsel_msr; - unsigned int evntsel; - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - /* - * Check whether the Architectural PerfMon supports - * Unhalted Core Cycles Event or not. - * NOTE: Corresponding bit = 0 in ebx indicates event present. - */ - cpuid(10, &(eax.full), &ebx, &unused, &unused); - if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) || - (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) - goto fail; - - perfctr_msr = MSR_ARCH_PERFMON_PERFCTR0; - evntsel_msr = MSR_ARCH_PERFMON_EVENTSEL0; - - if (!__reserve_perfctr_nmi(-1, perfctr_msr)) - goto fail; - - if (!__reserve_evntsel_nmi(-1, evntsel_msr)) - goto fail1; - - wrmsrl(perfctr_msr, 0UL); - - evntsel = ARCH_PERFMON_EVENTSEL_INT - | ARCH_PERFMON_EVENTSEL_OS - | ARCH_PERFMON_EVENTSEL_USR - | ARCH_PERFMON_NMI_EVENT_SEL - | ARCH_PERFMON_NMI_EVENT_UMASK; - - /* setup the timer */ - wrmsr(evntsel_msr, evntsel, 0); - nmi_hz = adjust_for_32bit_ctr(nmi_hz); - write_watchdog_counter32(perfctr_msr, "INTEL_ARCH_PERFCTR0"); - apic_write(APIC_LVTPC, APIC_DM_NMI); - evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE; - wrmsr(evntsel_msr, evntsel, 0); - - wd->perfctr_msr = perfctr_msr; - wd->evntsel_msr = evntsel_msr; - wd->cccr_msr = 0; //unused - wd->check_bit = 1ULL << (eax.split.bit_width - 1); - return 1; -fail1: - __release_perfctr_nmi(-1, perfctr_msr); -fail: - return 0; + apic_write(APIC_LVT0, APIC_DM_NMI | APIC_LVT_MASKED); } -static void stop_intel_arch_watchdog(void) +/* + * Disable timer based NMIs on all CPUs: + */ +void acpi_nmi_disable(void) { - unsigned int ebx; - union cpuid10_eax eax; - unsigned int unused; - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - /* - * Check whether the Architectural PerfMon supports - * Unhalted Core Cycles Event or not. - * NOTE: Corresponding bit = 0 in ebx indicates event present. - */ - cpuid(10, &(eax.full), &ebx, &unused, &unused); - if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) || - (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) - return; - - wrmsr(wd->evntsel_msr, 0, 0); - __release_evntsel_nmi(-1, wd->evntsel_msr); - __release_perfctr_nmi(-1, wd->perfctr_msr); + if (atomic_read(&nmi_active) && nmi_watchdog == NMI_IO_APIC) + on_each_cpu(__acpi_nmi_disable, NULL, 0, 1); } void setup_apic_nmi_watchdog (void *unused) { - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - /* only support LOCAL and IO APICs for now */ - if ((nmi_watchdog != NMI_LOCAL_APIC) && - (nmi_watchdog != NMI_IO_APIC)) - return; - - if (wd->enabled == 1) - return; + if (__get_cpu_var(wd_enabled)) + return; /* cheap hack to support suspend/resume */ /* if cpu0 is not active neither should the other cpus */ if ((smp_processor_id() != 0) && (atomic_read(&nmi_active) <= 0)) return; - if (nmi_watchdog == NMI_LOCAL_APIC) { - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - if (boot_cpu_data.x86 != 6 && boot_cpu_data.x86 != 15 && - boot_cpu_data.x86 != 16) - return; - if (!setup_k7_watchdog()) - return; - break; - case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { - if (!setup_intel_arch_watchdog()) - return; - break; - } - switch (boot_cpu_data.x86) { - case 6: - if (boot_cpu_data.x86_model > 0xd) - return; - - if (!setup_p6_watchdog()) - return; - break; - case 15: - if (boot_cpu_data.x86_model > 0x4) - return; - - if (!setup_p4_watchdog()) - return; - break; - default: - return; - } - break; - default: + switch (nmi_watchdog) { + case NMI_LOCAL_APIC: + __get_cpu_var(wd_enabled) = 1; /* enable it before to avoid race with handler */ + if (lapic_watchdog_init(nmi_hz) < 0) { + __get_cpu_var(wd_enabled) = 0; return; } + /* FALL THROUGH */ + case NMI_IO_APIC: + __get_cpu_var(wd_enabled) = 1; + atomic_inc(&nmi_active); } - wd->enabled = 1; - atomic_inc(&nmi_active); } void stop_apic_nmi_watchdog(void *unused) { - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - /* only support LOCAL and IO APICs for now */ if ((nmi_watchdog != NMI_LOCAL_APIC) && (nmi_watchdog != NMI_IO_APIC)) return; - - if (wd->enabled == 0) + if (__get_cpu_var(wd_enabled) == 0) return; - - if (nmi_watchdog == NMI_LOCAL_APIC) { - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - stop_k7_watchdog(); - break; - case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { - stop_intel_arch_watchdog(); - break; - } - switch (boot_cpu_data.x86) { - case 6: - if (boot_cpu_data.x86_model > 0xd) - break; - stop_p6_watchdog(); - break; - case 15: - if (boot_cpu_data.x86_model > 0x4) - break; - stop_p4_watchdog(); - break; - } - break; - default: - return; - } - } - wd->enabled = 0; + if (nmi_watchdog == NMI_LOCAL_APIC) + lapic_watchdog_stop(); + __get_cpu_var(wd_enabled) = 0; atomic_dec(&nmi_active); } @@ -1011,8 +328,6 @@ __kprobes int nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) unsigned int sum; int touched = 0; int cpu = smp_processor_id(); - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - u64 dummy; int rc=0; /* check for other users first */ @@ -1055,53 +370,20 @@ __kprobes int nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) alert_counter[cpu] = 0; } /* see if the nmi watchdog went off */ - if (wd->enabled) { - if (nmi_watchdog == NMI_LOCAL_APIC) { - rdmsrl(wd->perfctr_msr, dummy); - if (dummy & wd->check_bit){ - /* this wasn't a watchdog timer interrupt */ - goto done; - } - - /* only Intel P4 uses the cccr msr */ - if (wd->cccr_msr != 0) { - /* - * P4 quirks: - * - An overflown perfctr will assert its interrupt - * until the OVF flag in its CCCR is cleared. - * - LVTPC is masked on interrupt and must be - * unmasked by the LVTPC handler. - */ - rdmsrl(wd->cccr_msr, dummy); - dummy &= ~P4_CCCR_OVF; - wrmsrl(wd->cccr_msr, dummy); - apic_write(APIC_LVTPC, APIC_DM_NMI); - /* start the cycle over again */ - write_watchdog_counter(wd->perfctr_msr, NULL); - } - else if (wd->perfctr_msr == MSR_P6_PERFCTR0 || - wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0) { - /* P6 based Pentium M need to re-unmask - * the apic vector but it doesn't hurt - * other P6 variant. - * ArchPerfom/Core Duo also needs this */ - apic_write(APIC_LVTPC, APIC_DM_NMI); - /* P6/ARCH_PERFMON has 32 bit counter write */ - write_watchdog_counter32(wd->perfctr_msr, NULL); - } else { - /* start the cycle over again */ - write_watchdog_counter(wd->perfctr_msr, NULL); - } - rc = 1; - } else if (nmi_watchdog == NMI_IO_APIC) { - /* don't know how to accurately check for this. - * just assume it was a watchdog timer interrupt - * This matches the old behaviour. - */ - rc = 1; - } + if (!__get_cpu_var(wd_enabled)) + return rc; + switch (nmi_watchdog) { + case NMI_LOCAL_APIC: + rc |= lapic_wd_event(nmi_hz); + break; + case NMI_IO_APIC: + /* don't know how to accurately check for this. + * just assume it was a watchdog timer interrupt + * This matches the old behaviour. + */ + rc = 1; + break; } -done: return rc; } @@ -1146,7 +428,7 @@ int proc_nmi_enabled(struct ctl_table *table, int write, struct file *file, } if (nmi_watchdog == NMI_DEFAULT) { - if (nmi_known_cpu() > 0) + if (lapic_watchdog_ok()) nmi_watchdog = NMI_LOCAL_APIC; else nmi_watchdog = NMI_IO_APIC; @@ -1182,11 +464,3 @@ void __trigger_all_cpu_backtrace(void) EXPORT_SYMBOL(nmi_active); EXPORT_SYMBOL(nmi_watchdog); -EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi); -EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit); -EXPORT_SYMBOL(reserve_perfctr_nmi); -EXPORT_SYMBOL(release_perfctr_nmi); -EXPORT_SYMBOL(reserve_evntsel_nmi); -EXPORT_SYMBOL(release_evntsel_nmi); -EXPORT_SYMBOL(disable_timer_nmi_watchdog); -EXPORT_SYMBOL(enable_timer_nmi_watchdog); diff --git a/arch/i386/kernel/paravirt.c b/arch/i386/kernel/paravirt.c index 2ec331e..5c10f37 100644 --- a/arch/i386/kernel/paravirt.c +++ b/arch/i386/kernel/paravirt.c @@ -20,6 +20,7 @@ #include <linux/efi.h> #include <linux/bcd.h> #include <linux/start_kernel.h> +#include <linux/highmem.h> #include <asm/bug.h> #include <asm/paravirt.h> @@ -35,7 +36,7 @@ #include <asm/timer.h> /* nop stub */ -static void native_nop(void) +void _paravirt_nop(void) { } @@ -54,331 +55,148 @@ char *memory_setup(void) #define DEF_NATIVE(name, code) \ extern const char start_##name[], end_##name[]; \ asm("start_" #name ": " code "; end_" #name ":") -DEF_NATIVE(cli, "cli"); -DEF_NATIVE(sti, "sti"); -DEF_NATIVE(popf, "push %eax; popf"); -DEF_NATIVE(pushf, "pushf; pop %eax"); -DEF_NATIVE(pushf_cli, "pushf; pop %eax; cli"); + +DEF_NATIVE(irq_disable, "cli"); +DEF_NATIVE(irq_enable, "sti"); +DEF_NATIVE(restore_fl, "push %eax; popf"); +DEF_NATIVE(save_fl, "pushf; pop %eax"); DEF_NATIVE(iret, "iret"); -DEF_NATIVE(sti_sysexit, "sti; sysexit"); +DEF_NATIVE(irq_enable_sysexit, "sti; sysexit"); +DEF_NATIVE(read_cr2, "mov %cr2, %eax"); +DEF_NATIVE(write_cr3, "mov %eax, %cr3"); +DEF_NATIVE(read_cr3, "mov %cr3, %eax"); +DEF_NATIVE(clts, "clts"); +DEF_NATIVE(read_tsc, "rdtsc"); -static const struct native_insns -{ - const char *start, *end; -} native_insns[] = { - [PARAVIRT_IRQ_DISABLE] = { start_cli, end_cli }, - [PARAVIRT_IRQ_ENABLE] = { start_sti, end_sti }, - [PARAVIRT_RESTORE_FLAGS] = { start_popf, end_popf }, - [PARAVIRT_SAVE_FLAGS] = { start_pushf, end_pushf }, - [PARAVIRT_SAVE_FLAGS_IRQ_DISABLE] = { start_pushf_cli, end_pushf_cli }, - [PARAVIRT_INTERRUPT_RETURN] = { start_iret, end_iret }, - [PARAVIRT_STI_SYSEXIT] = { start_sti_sysexit, end_sti_sysexit }, -}; +DEF_NATIVE(ud2a, "ud2a"); static unsigned native_patch(u8 type, u16 clobbers, void *insns, unsigned len) { - unsigned int insn_len; - - /* Don't touch it if we don't have a replacement */ - if (type >= ARRAY_SIZE(native_insns) || !native_insns[type].start) - return len; - - insn_len = native_insns[type].end - native_insns[type].start; - - /* Similarly if we can't fit replacement. */ - if (len < insn_len) - return len; + const unsigned char *start, *end; + unsigned ret; + + switch(type) { +#define SITE(x) case PARAVIRT_PATCH(x): start = start_##x; end = end_##x; goto patch_site + SITE(irq_disable); + SITE(irq_enable); + SITE(restore_fl); + SITE(save_fl); + SITE(iret); + SITE(irq_enable_sysexit); + SITE(read_cr2); + SITE(read_cr3); + SITE(write_cr3); + SITE(clts); + SITE(read_tsc); +#undef SITE + + patch_site: + ret = paravirt_patch_insns(insns, len, start, end); + break; - memcpy(insns, native_insns[type].start, insn_len); - return insn_len; -} + case PARAVIRT_PATCH(make_pgd): + case PARAVIRT_PATCH(make_pte): + case PARAVIRT_PATCH(pgd_val): + case PARAVIRT_PATCH(pte_val): +#ifdef CONFIG_X86_PAE + case PARAVIRT_PATCH(make_pmd): + case PARAVIRT_PATCH(pmd_val): +#endif + /* These functions end up returning exactly what + they're passed, in the same registers. */ + ret = paravirt_patch_nop(); + break; -static unsigned long native_get_debugreg(int regno) -{ - unsigned long val = 0; /* Damn you, gcc! */ - - switch (regno) { - case 0: - asm("movl %%db0, %0" :"=r" (val)); break; - case 1: - asm("movl %%db1, %0" :"=r" (val)); break; - case 2: - asm("movl %%db2, %0" :"=r" (val)); break; - case 3: - asm("movl %%db3, %0" :"=r" (val)); break; - case 6: - asm("movl %%db6, %0" :"=r" (val)); break; - case 7: - asm("movl %%db7, %0" :"=r" (val)); break; default: - BUG(); - } - return val; -} - -static void native_set_debugreg(int regno, unsigned long value) -{ - switch (regno) { - case 0: - asm("movl %0,%%db0" : /* no output */ :"r" (value)); - break; - case 1: - asm("movl %0,%%db1" : /* no output */ :"r" (value)); - break; - case 2: - asm("movl %0,%%db2" : /* no output */ :"r" (value)); + ret = paravirt_patch_default(type, clobbers, insns, len); break; - case 3: - asm("movl %0,%%db3" : /* no output */ :"r" (value)); - break; - case 6: - asm("movl %0,%%db6" : /* no output */ :"r" (value)); - break; - case 7: - asm("movl %0,%%db7" : /* no output */ :"r" (value)); - break; - default: - BUG(); } -} - -void init_IRQ(void) -{ - paravirt_ops.init_IRQ(); -} - -static void native_clts(void) -{ - asm volatile ("clts"); -} - -static unsigned long native_read_cr0(void) -{ - unsigned long val; - asm volatile("movl %%cr0,%0\n\t" :"=r" (val)); - return val; -} - -static void native_write_cr0(unsigned long val) -{ - asm volatile("movl %0,%%cr0": :"r" (val)); -} - -static unsigned long native_read_cr2(void) -{ - unsigned long val; - asm volatile("movl %%cr2,%0\n\t" :"=r" (val)); - return val; -} - -static void native_write_cr2(unsigned long val) -{ - asm volatile("movl %0,%%cr2": :"r" (val)); -} - -static unsigned long native_read_cr3(void) -{ - unsigned long val; - asm volatile("movl %%cr3,%0\n\t" :"=r" (val)); - return val; -} - -static void native_write_cr3(unsigned long val) -{ - asm volatile("movl %0,%%cr3": :"r" (val)); -} - -static unsigned long native_read_cr4(void) -{ - unsigned long val; - asm volatile("movl %%cr4,%0\n\t" :"=r" (val)); - return val; -} - -static unsigned long native_read_cr4_safe(void) -{ - unsigned long val; - /* This could fault if %cr4 does not exist */ - asm("1: movl %%cr4, %0 \n" - "2: \n" - ".section __ex_table,\"a\" \n" - ".long 1b,2b \n" - ".previous \n" - : "=r" (val): "0" (0)); - return val; -} - -static void native_write_cr4(unsigned long val) -{ - asm volatile("movl %0,%%cr4": :"r" (val)); -} - -static unsigned long native_save_fl(void) -{ - unsigned long f; - asm volatile("pushfl ; popl %0":"=g" (f): /* no input */); - return f; -} - -static void native_restore_fl(unsigned long f) -{ - asm volatile("pushl %0 ; popfl": /* no output */ - :"g" (f) - :"memory", "cc"); -} - -static void native_irq_disable(void) -{ - asm volatile("cli": : :"memory"); -} - -static void native_irq_enable(void) -{ - asm volatile("sti": : :"memory"); -} - -static void native_safe_halt(void) -{ - asm volatile("sti; hlt": : :"memory"); -} -static void native_halt(void) -{ - asm volatile("hlt": : :"memory"); + return ret; } -static void native_wbinvd(void) +unsigned paravirt_patch_nop(void) { - asm volatile("wbinvd": : :"memory"); + return 0; } -static unsigned long long native_read_msr(unsigned int msr, int *err) +unsigned paravirt_patch_ignore(unsigned len) { - unsigned long long val; - - asm volatile("2: rdmsr ; xorl %0,%0\n" - "1:\n\t" - ".section .fixup,\"ax\"\n\t" - "3: movl %3,%0 ; jmp 1b\n\t" - ".previous\n\t" - ".section __ex_table,\"a\"\n" - " .align 4\n\t" - " .long 2b,3b\n\t" - ".previous" - : "=r" (*err), "=A" (val) - : "c" (msr), "i" (-EFAULT)); - - return val; + return len; } -static int native_write_msr(unsigned int msr, unsigned long long val) +unsigned paravirt_patch_call(void *target, u16 tgt_clobbers, + void *site, u16 site_clobbers, + unsigned len) { - int err; - asm volatile("2: wrmsr ; xorl %0,%0\n" - "1:\n\t" - ".section .fixup,\"ax\"\n\t" - "3: movl %4,%0 ; jmp 1b\n\t" - ".previous\n\t" - ".section __ex_table,\"a\"\n" - " .align 4\n\t" - " .long 2b,3b\n\t" - ".previous" - : "=a" (err) - : "c" (msr), "0" ((u32)val), "d" ((u32)(val>>32)), - "i" (-EFAULT)); - return err; -} + unsigned char *call = site; + unsigned long delta = (unsigned long)target - (unsigned long)(call+5); -static unsigned long long native_read_tsc(void) -{ - unsigned long long val; - asm volatile("rdtsc" : "=A" (val)); - return val; -} + if (tgt_clobbers & ~site_clobbers) + return len; /* target would clobber too much for this site */ + if (len < 5) + return len; /* call too long for patch site */ -static unsigned long long native_read_pmc(void) -{ - unsigned long long val; - asm volatile("rdpmc" : "=A" (val)); - return val; -} + *call++ = 0xe8; /* call */ + *(unsigned long *)call = delta; -static void native_load_tr_desc(void) -{ - asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8)); + return 5; } -static void native_load_gdt(const struct Xgt_desc_struct *dtr) +unsigned paravirt_patch_jmp(void *target, void *site, unsigned len) { - asm volatile("lgdt %0"::"m" (*dtr)); -} + unsigned char *jmp = site; + unsigned long delta = (unsigned long)target - (unsigned long)(jmp+5); -static void native_load_idt(const struct Xgt_desc_struct *dtr) -{ - asm volatile("lidt %0"::"m" (*dtr)); -} + if (len < 5) + return len; /* call too long for patch site */ -static void native_store_gdt(struct Xgt_desc_struct *dtr) -{ - asm ("sgdt %0":"=m" (*dtr)); -} + *jmp++ = 0xe9; /* jmp */ + *(unsigned long *)jmp = delta; -static void native_store_idt(struct Xgt_desc_struct *dtr) -{ - asm ("sidt %0":"=m" (*dtr)); + return 5; } -static unsigned long native_store_tr(void) +unsigned paravirt_patch_default(u8 type, u16 clobbers, void *site, unsigned len) { - unsigned long tr; - asm ("str %0":"=r" (tr)); - return tr; -} + void *opfunc = *((void **)¶virt_ops + type); + unsigned ret; -static void native_load_tls(struct thread_struct *t, unsigned int cpu) -{ -#define C(i) get_cpu_gdt_table(cpu)[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i] - C(0); C(1); C(2); -#undef C -} + if (opfunc == NULL) + /* If there's no function, patch it with a ud2a (BUG) */ + ret = paravirt_patch_insns(site, len, start_ud2a, end_ud2a); + else if (opfunc == paravirt_nop) + /* If the operation is a nop, then nop the callsite */ + ret = paravirt_patch_nop(); + else if (type == PARAVIRT_PATCH(iret) || + type == PARAVIRT_PATCH(irq_enable_sysexit)) + /* If operation requires a jmp, then jmp */ + ret = paravirt_patch_jmp(opfunc, site, len); + else + /* Otherwise call the function; assume target could + clobber any caller-save reg */ + ret = paravirt_patch_call(opfunc, CLBR_ANY, + site, clobbers, len); -static inline void native_write_dt_entry(void *dt, int entry, u32 entry_low, u32 entry_high) -{ - u32 *lp = (u32 *)((char *)dt + entry*8); - lp[0] = entry_low; - lp[1] = entry_high; + return ret; } -static void native_write_ldt_entry(void *dt, int entrynum, u32 low, u32 high) +unsigned paravirt_patch_insns(void *site, unsigned len, + const char *start, const char *end) { - native_write_dt_entry(dt, entrynum, low, high); -} + unsigned insn_len = end - start; -static void native_write_gdt_entry(void *dt, int entrynum, u32 low, u32 high) -{ - native_write_dt_entry(dt, entrynum, low, high); -} - -static void native_write_idt_entry(void *dt, int entrynum, u32 low, u32 high) -{ - native_write_dt_entry(dt, entrynum, low, high); -} + if (insn_len > len || start == NULL) + insn_len = len; + else + memcpy(site, start, insn_len); -static void native_load_esp0(struct tss_struct *tss, - struct thread_struct *thread) -{ - tss->esp0 = thread->esp0; - - /* This can only happen when SEP is enabled, no need to test "SEP"arately */ - if (unlikely(tss->ss1 != thread->sysenter_cs)) { - tss->ss1 = thread->sysenter_cs; - wrmsr(MSR_IA32_SYSENTER_CS, thread->sysenter_cs, 0); - } + return insn_len; } -static void native_io_delay(void) +void init_IRQ(void) { - asm volatile("outb %al,$0x80"); + paravirt_ops.init_IRQ(); } static void native_flush_tlb(void) @@ -395,83 +213,11 @@ static void native_flush_tlb_global(void) __native_flush_tlb_global(); } -static void native_flush_tlb_single(u32 addr) +static void native_flush_tlb_single(unsigned long addr) { __native_flush_tlb_single(addr); } -#ifndef CONFIG_X86_PAE -static void native_set_pte(pte_t *ptep, pte_t pteval) -{ - *ptep = pteval; -} - -static void native_set_pte_at(struct mm_struct *mm, u32 addr, pte_t *ptep, pte_t pteval) -{ - *ptep = pteval; -} - -static void native_set_pmd(pmd_t *pmdp, pmd_t pmdval) -{ - *pmdp = pmdval; -} - -#else /* CONFIG_X86_PAE */ - -static void native_set_pte(pte_t *ptep, pte_t pte) -{ - ptep->pte_high = pte.pte_high; - smp_wmb(); - ptep->pte_low = pte.pte_low; -} - -static void native_set_pte_at(struct mm_struct *mm, u32 addr, pte_t *ptep, pte_t pte) -{ - ptep->pte_high = pte.pte_high; - smp_wmb(); - ptep->pte_low = pte.pte_low; -} - -static void native_set_pte_present(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte) -{ - ptep->pte_low = 0; - smp_wmb(); - ptep->pte_high = pte.pte_high; - smp_wmb(); - ptep->pte_low = pte.pte_low; -} - -static void native_set_pte_atomic(pte_t *ptep, pte_t pteval) -{ - set_64bit((unsigned long long *)ptep,pte_val(pteval)); -} - -static void native_set_pmd(pmd_t *pmdp, pmd_t pmdval) -{ - set_64bit((unsigned long long *)pmdp,pmd_val(pmdval)); -} - -static void native_set_pud(pud_t *pudp, pud_t pudval) -{ - *pudp = pudval; -} - -static void native_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) -{ - ptep->pte_low = 0; - smp_wmb(); - ptep->pte_high = 0; -} - -static void native_pmd_clear(pmd_t *pmd) -{ - u32 *tmp = (u32 *)pmd; - *tmp = 0; - smp_wmb(); - *(tmp + 1) = 0; -} -#endif /* CONFIG_X86_PAE */ - /* These are in entry.S */ extern void native_iret(void); extern void native_irq_enable_sysexit(void); @@ -487,10 +233,11 @@ struct paravirt_ops paravirt_ops = { .name = "bare hardware", .paravirt_enabled = 0, .kernel_rpl = 0, + .shared_kernel_pmd = 1, /* Only used when CONFIG_X86_PAE is set */ .patch = native_patch, .banner = default_banner, - .arch_setup = native_nop, + .arch_setup = paravirt_nop, .memory_setup = machine_specific_memory_setup, .get_wallclock = native_get_wallclock, .set_wallclock = native_set_wallclock, @@ -517,8 +264,8 @@ struct paravirt_ops paravirt_ops = { .safe_halt = native_safe_halt, .halt = native_halt, .wbinvd = native_wbinvd, - .read_msr = native_read_msr, - .write_msr = native_write_msr, + .read_msr = native_read_msr_safe, + .write_msr = native_write_msr_safe, .read_tsc = native_read_tsc, .read_pmc = native_read_pmc, .get_scheduled_cycles = native_read_tsc, @@ -531,9 +278,9 @@ struct paravirt_ops paravirt_ops = { .store_idt = native_store_idt, .store_tr = native_store_tr, .load_tls = native_load_tls, - .write_ldt_entry = native_write_ldt_entry, - .write_gdt_entry = native_write_gdt_entry, - .write_idt_entry = native_write_idt_entry, + .write_ldt_entry = write_dt_entry, + .write_gdt_entry = write_dt_entry, + .write_idt_entry = write_dt_entry, .load_esp0 = native_load_esp0, .set_iopl_mask = native_set_iopl_mask, @@ -545,44 +292,57 @@ struct paravirt_ops paravirt_ops = { .apic_read = native_apic_read, .setup_boot_clock = setup_boot_APIC_clock, .setup_secondary_clock = setup_secondary_APIC_clock, + .startup_ipi_hook = paravirt_nop, #endif - .set_lazy_mode = (void *)native_nop, + .set_lazy_mode = paravirt_nop, + + .pagetable_setup_start = native_pagetable_setup_start, + .pagetable_setup_done = native_pagetable_setup_done, .flush_tlb_user = native_flush_tlb, .flush_tlb_kernel = native_flush_tlb_global, .flush_tlb_single = native_flush_tlb_single, + .flush_tlb_others = native_flush_tlb_others, - .map_pt_hook = (void *)native_nop, - - .alloc_pt = (void *)native_nop, - .alloc_pd = (void *)native_nop, - .alloc_pd_clone = (void *)native_nop, - .release_pt = (void *)native_nop, - .release_pd = (void *)native_nop, + .alloc_pt = paravirt_nop, + .alloc_pd = paravirt_nop, + .alloc_pd_clone = paravirt_nop, + .release_pt = paravirt_nop, + .release_pd = paravirt_nop, .set_pte = native_set_pte, .set_pte_at = native_set_pte_at, .set_pmd = native_set_pmd, - .pte_update = (void *)native_nop, - .pte_update_defer = (void *)native_nop, + .pte_update = paravirt_nop, + .pte_update_defer = paravirt_nop, + +#ifdef CONFIG_HIGHPTE + .kmap_atomic_pte = kmap_atomic, +#endif + #ifdef CONFIG_X86_PAE .set_pte_atomic = native_set_pte_atomic, .set_pte_present = native_set_pte_present, .set_pud = native_set_pud, .pte_clear = native_pte_clear, .pmd_clear = native_pmd_clear, + + .pmd_val = native_pmd_val, + .make_pmd = native_make_pmd, #endif + .pte_val = native_pte_val, + .pgd_val = native_pgd_val, + + .make_pte = native_make_pte, + .make_pgd = native_make_pgd, + .irq_enable_sysexit = native_irq_enable_sysexit, .iret = native_iret, - .startup_ipi_hook = (void *)native_nop, + .dup_mmap = paravirt_nop, + .exit_mmap = paravirt_nop, + .activate_mm = paravirt_nop, }; -/* - * NOTE: CONFIG_PARAVIRT is experimental and the paravirt_ops - * semantics are subject to change. Hence we only do this - * internal-only export of this, until it gets sorted out and - * all lowlevel CPU ops used by modules are separately exported. - */ -EXPORT_SYMBOL_GPL(paravirt_ops); +EXPORT_SYMBOL(paravirt_ops); diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c index 393a67d..6199947 100644 --- a/arch/i386/kernel/process.c +++ b/arch/i386/kernel/process.c @@ -39,6 +39,7 @@ #include <linux/random.h> #include <linux/personality.h> #include <linux/tick.h> +#include <linux/percpu.h> #include <asm/uaccess.h> #include <asm/pgtable.h> @@ -57,7 +58,6 @@ #include <asm/tlbflush.h> #include <asm/cpu.h> -#include <asm/pda.h> asmlinkage void ret_from_fork(void) __asm__("ret_from_fork"); @@ -66,6 +66,12 @@ static int hlt_counter; unsigned long boot_option_idle_override = 0; EXPORT_SYMBOL(boot_option_idle_override); +DEFINE_PER_CPU(struct task_struct *, current_task) = &init_task; +EXPORT_PER_CPU_SYMBOL(current_task); + +DEFINE_PER_CPU(int, cpu_number); +EXPORT_PER_CPU_SYMBOL(cpu_number); + /* * Return saved PC of a blocked thread. */ @@ -272,25 +278,24 @@ void __devinit select_idle_routine(const struct cpuinfo_x86 *c) } } -static int __init idle_setup (char *str) +static int __init idle_setup(char *str) { - if (!strncmp(str, "poll", 4)) { + if (!strcmp(str, "poll")) { printk("using polling idle threads.\n"); pm_idle = poll_idle; #ifdef CONFIG_X86_SMP if (smp_num_siblings > 1) printk("WARNING: polling idle and HT enabled, performance may degrade.\n"); #endif - } else if (!strncmp(str, "halt", 4)) { - printk("using halt in idle threads.\n"); - pm_idle = default_idle; - } + } else if (!strcmp(str, "mwait")) + force_mwait = 1; + else + return -1; boot_option_idle_override = 1; - return 1; + return 0; } - -__setup("idle=", idle_setup); +early_param("idle", idle_setup); void show_regs(struct pt_regs * regs) { @@ -343,7 +348,7 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) regs.xds = __USER_DS; regs.xes = __USER_DS; - regs.xfs = __KERNEL_PDA; + regs.xfs = __KERNEL_PERCPU; regs.orig_eax = -1; regs.eip = (unsigned long) kernel_thread_helper; regs.xcs = __KERNEL_CS | get_kernel_rpl(); @@ -376,7 +381,7 @@ void exit_thread(void) t->io_bitmap_max = 0; tss->io_bitmap_owner = NULL; tss->io_bitmap_max = 0; - tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET; + tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET; put_cpu(); } } @@ -555,7 +560,7 @@ static noinline void __switch_to_xtra(struct task_struct *next_p, * Disable the bitmap via an invalid offset. We still cache * the previous bitmap owner and the IO bitmap contents: */ - tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET; + tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET; return; } @@ -565,7 +570,7 @@ static noinline void __switch_to_xtra(struct task_struct *next_p, * matches the next task, we dont have to do anything but * to set a valid offset in the TSS: */ - tss->io_bitmap_base = IO_BITMAP_OFFSET; + tss->x86_tss.io_bitmap_base = IO_BITMAP_OFFSET; return; } /* @@ -577,7 +582,7 @@ static noinline void __switch_to_xtra(struct task_struct *next_p, * redundant copies when the currently switched task does not * perform any I/O during its timeslice. */ - tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY; + tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY; } /* @@ -712,7 +717,7 @@ struct task_struct fastcall * __switch_to(struct task_struct *prev_p, struct tas if (prev->gs | next->gs) loadsegment(gs, next->gs); - write_pda(pcurrent, next_p); + x86_write_percpu(current_task, next_p); return prev_p; } diff --git a/arch/i386/kernel/quirks.c b/arch/i386/kernel/quirks.c index 34874c3..9f6ab17 100644 --- a/arch/i386/kernel/quirks.c +++ b/arch/i386/kernel/quirks.c @@ -3,12 +3,10 @@ */ #include <linux/pci.h> #include <linux/irq.h> -#include <asm/pci-direct.h> -#include <asm/genapic.h> -#include <asm/cpu.h> #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_SMP) && defined(CONFIG_PCI) -static void __devinit verify_quirk_intel_irqbalance(struct pci_dev *dev) + +static void __devinit quirk_intel_irqbalance(struct pci_dev *dev) { u8 config, rev; u32 word; @@ -16,12 +14,14 @@ static void __devinit verify_quirk_intel_irqbalance(struct pci_dev *dev) /* BIOS may enable hardware IRQ balancing for * E7520/E7320/E7525(revision ID 0x9 and below) * based platforms. - * For those platforms, make sure that the genapic is set to 'flat' + * Disable SW irqbalance/affinity on those platforms. */ pci_read_config_byte(dev, PCI_CLASS_REVISION, &rev); if (rev > 0x9) return; + printk(KERN_INFO "Intel E7520/7320/7525 detected."); + /* enable access to config space*/ pci_read_config_byte(dev, 0xf4, &config); pci_write_config_byte(dev, 0xf4, config|0x2); @@ -30,44 +30,6 @@ static void __devinit verify_quirk_intel_irqbalance(struct pci_dev *dev) raw_pci_ops->read(0, 0, 0x40, 0x4c, 2, &word); if (!(word & (1 << 13))) { -#ifdef CONFIG_X86_64 - if (genapic != &apic_flat) - panic("APIC mode must be flat on this system\n"); -#elif defined(CONFIG_X86_GENERICARCH) - if (genapic != &apic_default) - panic("APIC mode must be default(flat) on this system. Use apic=default\n"); -#endif - } - - /* put back the original value for config space*/ - if (!(config & 0x2)) - pci_write_config_byte(dev, 0xf4, config); -} - -void __init quirk_intel_irqbalance(void) -{ - u8 config, rev; - u32 word; - - /* BIOS may enable hardware IRQ balancing for - * E7520/E7320/E7525(revision ID 0x9 and below) - * based platforms. - * Disable SW irqbalance/affinity on those platforms. - */ - rev = read_pci_config_byte(0, 0, 0, PCI_CLASS_REVISION); - if (rev > 0x9) - return; - - printk(KERN_INFO "Intel E7520/7320/7525 detected."); - - /* enable access to config space */ - config = read_pci_config_byte(0, 0, 0, 0xf4); - write_pci_config_byte(0, 0, 0, 0xf4, config|0x2); - - /* read xTPR register */ - word = read_pci_config_16(0, 0, 0x40, 0x4c); - - if (!(word & (1 << 13))) { printk(KERN_INFO "Disabling irq balancing and affinity\n"); #ifdef CONFIG_IRQBALANCE irqbalance_disable(""); @@ -76,24 +38,13 @@ void __init quirk_intel_irqbalance(void) #ifdef CONFIG_PROC_FS no_irq_affinity = 1; #endif -#ifdef CONFIG_HOTPLUG_CPU - printk(KERN_INFO "Disabling cpu hotplug control\n"); - enable_cpu_hotplug = 0; -#endif -#ifdef CONFIG_X86_64 - /* force the genapic selection to flat mode so that - * interrupts can be redirected to more than one CPU. - */ - genapic_force = &apic_flat; -#endif } - /* put back the original value for config space */ + /* put back the original value for config space*/ if (!(config & 0x2)) - write_pci_config_byte(0, 0, 0, 0xf4, config); + pci_write_config_byte(dev, 0xf4, config); } -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, verify_quirk_intel_irqbalance); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, verify_quirk_intel_irqbalance); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, verify_quirk_intel_irqbalance); - +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_intel_irqbalance); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_intel_irqbalance); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_intel_irqbalance); #endif diff --git a/arch/i386/kernel/reboot.c b/arch/i386/kernel/reboot.c index 3514b41..50dfc65 100644 --- a/arch/i386/kernel/reboot.c +++ b/arch/i386/kernel/reboot.c @@ -17,7 +17,8 @@ #include <asm/apic.h> #include <asm/desc.h> #include "mach_reboot.h" -#include <linux/reboot_fixups.h> +#include <asm/reboot_fixups.h> +#include <asm/reboot.h> /* * Power off function, if any @@ -197,8 +198,6 @@ static unsigned char jump_to_bios [] = */ void machine_real_restart(unsigned char *code, int length) { - unsigned long flags; - local_irq_disable(); /* Write zero to CMOS register number 0x0f, which the BIOS POST @@ -211,9 +210,9 @@ void machine_real_restart(unsigned char *code, int length) safe side. (Yes, CMOS_WRITE does outb_p's. - Paul G.) */ - spin_lock_irqsave(&rtc_lock, flags); + spin_lock(&rtc_lock); CMOS_WRITE(0x00, 0x8f); - spin_unlock_irqrestore(&rtc_lock, flags); + spin_unlock(&rtc_lock); /* Remap the kernel at virtual address zero, as well as offset zero from the kernel segment. This assumes the kernel segment starts at @@ -280,7 +279,7 @@ void machine_real_restart(unsigned char *code, int length) EXPORT_SYMBOL(machine_real_restart); #endif -void machine_shutdown(void) +static void native_machine_shutdown(void) { #ifdef CONFIG_SMP int reboot_cpu_id; @@ -316,7 +315,11 @@ void machine_shutdown(void) #endif } -void machine_emergency_restart(void) +void __attribute__((weak)) mach_reboot_fixups(void) +{ +} + +static void native_machine_emergency_restart(void) { if (!reboot_thru_bios) { if (efi_enabled) { @@ -340,17 +343,17 @@ void machine_emergency_restart(void) machine_real_restart(jump_to_bios, sizeof(jump_to_bios)); } -void machine_restart(char * __unused) +static void native_machine_restart(char * __unused) { machine_shutdown(); machine_emergency_restart(); } -void machine_halt(void) +static void native_machine_halt(void) { } -void machine_power_off(void) +static void native_machine_power_off(void) { if (pm_power_off) { machine_shutdown(); @@ -359,3 +362,35 @@ void machine_power_off(void) } +struct machine_ops machine_ops = { + .power_off = native_machine_power_off, + .shutdown = native_machine_shutdown, + .emergency_restart = native_machine_emergency_restart, + .restart = native_machine_restart, + .halt = native_machine_halt, +}; + +void machine_power_off(void) +{ + machine_ops.power_off(); +} + +void machine_shutdown(void) +{ + machine_ops.shutdown(); +} + +void machine_emergency_restart(void) +{ + machine_ops.emergency_restart(); +} + +void machine_restart(char *cmd) +{ + machine_ops.restart(cmd); +} + +void machine_halt(void) +{ + machine_ops.halt(); +} diff --git a/arch/i386/kernel/reboot_fixups.c b/arch/i386/kernel/reboot_fixups.c index 99aab41..2d78d91 100644 --- a/arch/i386/kernel/reboot_fixups.c +++ b/arch/i386/kernel/reboot_fixups.c @@ -10,7 +10,7 @@ #include <asm/delay.h> #include <linux/pci.h> -#include <linux/reboot_fixups.h> +#include <asm/reboot_fixups.h> static void cs5530a_warm_reset(struct pci_dev *dev) { diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c index 0e89778..89a45a9 100644 --- a/arch/i386/kernel/smp.c +++ b/arch/i386/kernel/smp.c @@ -165,20 +165,20 @@ void fastcall send_IPI_self(int vector) } /* - * This is only used on smaller machines. + * This is used to send an IPI with no shorthand notation (the destination is + * specified in bits 56 to 63 of the ICR). */ -void send_IPI_mask_bitmask(cpumask_t cpumask, int vector) +static inline void __send_IPI_dest_field(unsigned long mask, int vector) { - unsigned long mask = cpus_addr(cpumask)[0]; unsigned long cfg; - unsigned long flags; - local_irq_save(flags); - WARN_ON(mask & ~cpus_addr(cpu_online_map)[0]); /* * Wait for idle. */ - apic_wait_icr_idle(); + if (unlikely(vector == NMI_VECTOR)) + safe_apic_wait_icr_idle(); + else + apic_wait_icr_idle(); /* * prepare target chip field @@ -195,13 +195,25 @@ void send_IPI_mask_bitmask(cpumask_t cpumask, int vector) * Send the IPI. The write to APIC_ICR fires this off. */ apic_write_around(APIC_ICR, cfg); +} + +/* + * This is only used on smaller machines. + */ +void send_IPI_mask_bitmask(cpumask_t cpumask, int vector) +{ + unsigned long mask = cpus_addr(cpumask)[0]; + unsigned long flags; + local_irq_save(flags); + WARN_ON(mask & ~cpus_addr(cpu_online_map)[0]); + __send_IPI_dest_field(mask, vector); local_irq_restore(flags); } void send_IPI_mask_sequence(cpumask_t mask, int vector) { - unsigned long cfg, flags; + unsigned long flags; unsigned int query_cpu; /* @@ -211,30 +223,10 @@ void send_IPI_mask_sequence(cpumask_t mask, int vector) */ local_irq_save(flags); - for (query_cpu = 0; query_cpu < NR_CPUS; ++query_cpu) { if (cpu_isset(query_cpu, mask)) { - - /* - * Wait for idle. - */ - apic_wait_icr_idle(); - - /* - * prepare target chip field - */ - cfg = __prepare_ICR2(cpu_to_logical_apicid(query_cpu)); - apic_write_around(APIC_ICR2, cfg); - - /* - * program the ICR - */ - cfg = __prepare_ICR(0, vector); - - /* - * Send the IPI. The write to APIC_ICR fires this off. - */ - apic_write_around(APIC_ICR, cfg); + __send_IPI_dest_field(cpu_to_logical_apicid(query_cpu), + vector); } } local_irq_restore(flags); @@ -256,7 +248,6 @@ static cpumask_t flush_cpumask; static struct mm_struct * flush_mm; static unsigned long flush_va; static DEFINE_SPINLOCK(tlbstate_lock); -#define FLUSH_ALL 0xffffffff /* * We cannot call mmdrop() because we are in interrupt context, @@ -338,7 +329,7 @@ fastcall void smp_invalidate_interrupt(struct pt_regs *regs) if (flush_mm == per_cpu(cpu_tlbstate, cpu).active_mm) { if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK) { - if (flush_va == FLUSH_ALL) + if (flush_va == TLB_FLUSH_ALL) local_flush_tlb(); else __flush_tlb_one(flush_va); @@ -353,9 +344,11 @@ out: put_cpu_no_resched(); } -static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm, - unsigned long va) +void native_flush_tlb_others(const cpumask_t *cpumaskp, struct mm_struct *mm, + unsigned long va) { + cpumask_t cpumask = *cpumaskp; + /* * A couple of (to be removed) sanity checks: * @@ -366,10 +359,12 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm, BUG_ON(cpu_isset(smp_processor_id(), cpumask)); BUG_ON(!mm); +#ifdef CONFIG_HOTPLUG_CPU /* If a CPU which we ran on has gone down, OK. */ cpus_and(cpumask, cpumask, cpu_online_map); - if (cpus_empty(cpumask)) + if (unlikely(cpus_empty(cpumask))) return; +#endif /* * i'm not happy about this global shared spinlock in the @@ -380,17 +375,7 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm, flush_mm = mm; flush_va = va; -#if NR_CPUS <= BITS_PER_LONG - atomic_set_mask(cpumask, &flush_cpumask); -#else - { - int k; - unsigned long *flush_mask = (unsigned long *)&flush_cpumask; - unsigned long *cpu_mask = (unsigned long *)&cpumask; - for (k = 0; k < BITS_TO_LONGS(NR_CPUS); ++k) - atomic_set_mask(cpu_mask[k], &flush_mask[k]); - } -#endif + cpus_or(flush_cpumask, cpumask, flush_cpumask); /* * We have to send the IPI only to * CPUs affected. @@ -417,7 +402,7 @@ void flush_tlb_current_task(void) local_flush_tlb(); if (!cpus_empty(cpu_mask)) - flush_tlb_others(cpu_mask, mm, FLUSH_ALL); + flush_tlb_others(cpu_mask, mm, TLB_FLUSH_ALL); preempt_enable(); } @@ -436,7 +421,7 @@ void flush_tlb_mm (struct mm_struct * mm) leave_mm(smp_processor_id()); } if (!cpus_empty(cpu_mask)) - flush_tlb_others(cpu_mask, mm, FLUSH_ALL); + flush_tlb_others(cpu_mask, mm, TLB_FLUSH_ALL); preempt_enable(); } @@ -483,7 +468,7 @@ void flush_tlb_all(void) * it goes straight through and wastes no time serializing * anything. Worst case is that we lose a reschedule ... */ -void smp_send_reschedule(int cpu) +void native_smp_send_reschedule(int cpu) { WARN_ON(cpu_is_offline(cpu)); send_IPI_mask(cpumask_of_cpu(cpu), RESCHEDULE_VECTOR); @@ -515,36 +500,78 @@ void unlock_ipi_call_lock(void) static struct call_data_struct *call_data; +static void __smp_call_function(void (*func) (void *info), void *info, + int nonatomic, int wait) +{ + struct call_data_struct data; + int cpus = num_online_cpus() - 1; + + if (!cpus) + return; + + data.func = func; + data.info = info; + atomic_set(&data.started, 0); + data.wait = wait; + if (wait) + atomic_set(&data.finished, 0); + + call_data = &data; + mb(); + + /* Send a message to all other CPUs and wait for them to respond */ + send_IPI_allbutself(CALL_FUNCTION_VECTOR); + + /* Wait for response */ + while (atomic_read(&data.started) != cpus) + cpu_relax(); + + if (wait) + while (atomic_read(&data.finished) != cpus) + cpu_relax(); +} + + /** - * smp_call_function(): Run a function on all other CPUs. + * smp_call_function_mask(): Run a function on a set of other CPUs. + * @mask: The set of cpus to run on. Must not include the current cpu. * @func: The function to run. This must be fast and non-blocking. * @info: An arbitrary pointer to pass to the function. - * @nonatomic: currently unused. * @wait: If true, wait (atomically) until function has completed on other CPUs. * - * Returns 0 on success, else a negative status code. Does not return until - * remote CPUs are nearly ready to execute <<func>> or are or have executed. + * Returns 0 on success, else a negative status code. + * + * If @wait is true, then returns once @func has returned; otherwise + * it returns just before the target cpu calls @func. * * You must not call this function with disabled interrupts or from a * hardware interrupt handler or from a bottom half handler. */ -int smp_call_function (void (*func) (void *info), void *info, int nonatomic, - int wait) +int native_smp_call_function_mask(cpumask_t mask, + void (*func)(void *), void *info, + int wait) { struct call_data_struct data; + cpumask_t allbutself; int cpus; + /* Can deadlock when called with interrupts disabled */ + WARN_ON(irqs_disabled()); + /* Holding any lock stops cpus from going down. */ spin_lock(&call_lock); - cpus = num_online_cpus() - 1; + + allbutself = cpu_online_map; + cpu_clear(smp_processor_id(), allbutself); + + cpus_and(mask, mask, allbutself); + cpus = cpus_weight(mask); + if (!cpus) { spin_unlock(&call_lock); return 0; } - /* Can deadlock when called with interrupts disabled */ - WARN_ON(irqs_disabled()); - data.func = func; data.info = info; atomic_set(&data.started, 0); @@ -554,9 +581,12 @@ int smp_call_function (void (*func) (void *info), void *info, int nonatomic, call_data = &data; mb(); - - /* Send a message to all other CPUs and wait for them to respond */ - send_IPI_allbutself(CALL_FUNCTION_VECTOR); + + /* Send a message to other CPUs */ + if (cpus_equal(mask, allbutself)) + send_IPI_allbutself(CALL_FUNCTION_VECTOR); + else + send_IPI_mask(mask, CALL_FUNCTION_VECTOR); /* Wait for response */ while (atomic_read(&data.started) != cpus) @@ -569,15 +599,68 @@ int smp_call_function (void (*func) (void *info), void *info, int nonatomic, return 0; } + +/** + * smp_call_function(): Run a function on all other CPUs. + * @func: The function to run. This must be fast and non-blocking. + * @info: An arbitrary pointer to pass to the function. + * @nonatomic: Unused. + * @wait: If true, wait (atomically) until function has completed on other CPUs. + * + * Returns 0 on success, else a negative status code. + * + * If @wait is true, then returns once @func has returned; otherwise + * it returns just before the target cpu calls @func. + * + * You must not call this function with disabled interrupts or from a + * hardware interrupt handler or from a bottom half handler. + */ +int smp_call_function(void (*func) (void *info), void *info, int nonatomic, + int wait) +{ + return smp_call_function_mask(cpu_online_map, func, info, wait); +} EXPORT_SYMBOL(smp_call_function); +/** + * smp_call_function_single - Run a function on another CPU + * @cpu: The target CPU. Cannot be the calling CPU. + * @func: The function to run. This must be fast and non-blocking. + * @info: An arbitrary pointer to pass to the function. + * @nonatomic: Unused. + * @wait: If true, wait until function has completed on other CPUs. + * + * Returns 0 on success, else a negative status code. + * + * If @wait is true, then returns once @func has returned; otherwise + * it returns just before the target cpu calls @func. + */ +int smp_call_function_single(int cpu, void (*func) (void *info), void *info, + int nonatomic, int wait) +{ + /* prevent preemption and reschedule on another processor */ + int ret; + int me = get_cpu(); + if (cpu == me) { + WARN_ON(1); + put_cpu(); + return -EBUSY; + } + + ret = smp_call_function_mask(cpumask_of_cpu(cpu), func, info, wait); + + put_cpu(); + return ret; +} +EXPORT_SYMBOL(smp_call_function_single); + static void stop_this_cpu (void * dummy) { + local_irq_disable(); /* * Remove this CPU: */ cpu_clear(smp_processor_id(), cpu_online_map); - local_irq_disable(); disable_local_APIC(); if (cpu_data[smp_processor_id()].hlt_works_ok) for(;;) halt(); @@ -588,13 +671,18 @@ static void stop_this_cpu (void * dummy) * this function calls the 'stop' function on all other CPUs in the system. */ -void smp_send_stop(void) +void native_smp_send_stop(void) { - smp_call_function(stop_this_cpu, NULL, 1, 0); + /* Don't deadlock on the call lock in panic */ + int nolock = !spin_trylock(&call_lock); + unsigned long flags; - local_irq_disable(); + local_irq_save(flags); + __smp_call_function(stop_this_cpu, NULL, 0, 0); + if (!nolock) + spin_unlock(&call_lock); disable_local_APIC(); - local_irq_enable(); + local_irq_restore(flags); } /* @@ -633,77 +721,6 @@ fastcall void smp_call_function_interrupt(struct pt_regs *regs) } } -/* - * this function sends a 'generic call function' IPI to one other CPU - * in the system. - * - * cpu is a standard Linux logical CPU number. - */ -static void -__smp_call_function_single(int cpu, void (*func) (void *info), void *info, - int nonatomic, int wait) -{ - struct call_data_struct data; - int cpus = 1; - - data.func = func; - data.info = info; - atomic_set(&data.started, 0); - data.wait = wait; - if (wait) - atomic_set(&data.finished, 0); - - call_data = &data; - wmb(); - /* Send a message to all other CPUs and wait for them to respond */ - send_IPI_mask(cpumask_of_cpu(cpu), CALL_FUNCTION_VECTOR); - - /* Wait for response */ - while (atomic_read(&data.started) != cpus) - cpu_relax(); - - if (!wait) - return; - - while (atomic_read(&data.finished) != cpus) - cpu_relax(); -} - -/* - * smp_call_function_single - Run a function on another CPU - * @func: The function to run. This must be fast and non-blocking. - * @info: An arbitrary pointer to pass to the function. - * @nonatomic: Currently unused. - * @wait: If true, wait until function has completed on other CPUs. - * - * Retrurns 0 on success, else a negative status code. - * - * Does not return until the remote CPU is nearly ready to execute <func> - * or is or has executed. - */ - -int smp_call_function_single(int cpu, void (*func) (void *info), void *info, - int nonatomic, int wait) -{ - /* prevent preemption and reschedule on another processor */ - int me = get_cpu(); - if (cpu == me) { - WARN_ON(1); - put_cpu(); - return -EBUSY; - } - - /* Can deadlock when called with interrupts disabled */ - WARN_ON(irqs_disabled()); - - spin_lock_bh(&call_lock); - __smp_call_function_single(cpu, func, info, nonatomic, wait); - spin_unlock_bh(&call_lock); - put_cpu(); - return 0; -} -EXPORT_SYMBOL(smp_call_function_single); - static int convert_apicid_to_cpu(int apic_id) { int i; @@ -730,3 +747,14 @@ int safe_smp_processor_id(void) return cpuid >= 0 ? cpuid : 0; } + +struct smp_ops smp_ops = { + .smp_prepare_boot_cpu = native_smp_prepare_boot_cpu, + .smp_prepare_cpus = native_smp_prepare_cpus, + .cpu_up = native_cpu_up, + .smp_cpus_done = native_smp_cpus_done, + + .smp_send_stop = native_smp_send_stop, + .smp_send_reschedule = native_smp_send_reschedule, + .smp_call_function_mask = native_smp_call_function_mask, +}; diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index 4ff55e6..a4b7ad2 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -53,13 +53,12 @@ #include <asm/desc.h> #include <asm/arch_hooks.h> #include <asm/nmi.h> -#include <asm/pda.h> -#include <asm/genapic.h> #include <mach_apic.h> #include <mach_wakecpu.h> #include <smpboot_hooks.h> #include <asm/vmi.h> +#include <asm/mtrr.h> /* Set if we find a B stepping CPU */ static int __devinitdata smp_b_stepping; @@ -100,6 +99,9 @@ EXPORT_SYMBOL(x86_cpu_to_apicid); u8 apicid_2_node[MAX_APICID]; +DEFINE_PER_CPU(unsigned long, this_cpu_off); +EXPORT_PER_CPU_SYMBOL(this_cpu_off); + /* * Trampoline 80x86 program as an array. */ @@ -156,7 +158,7 @@ static void __cpuinit smp_store_cpu_info(int id) *c = boot_cpu_data; if (id!=0) - identify_cpu(c); + identify_secondary_cpu(c); /* * Mask B, Pentium, but not Pentium MMX */ @@ -379,14 +381,14 @@ set_cpu_sibling_map(int cpu) static void __cpuinit start_secondary(void *unused) { /* - * Don't put *anything* before secondary_cpu_init(), SMP - * booting is too fragile that we want to limit the - * things done here to the most necessary things. + * Don't put *anything* before cpu_init(), SMP booting is too + * fragile that we want to limit the things done here to the + * most necessary things. */ #ifdef CONFIG_VMI vmi_bringup(); #endif - secondary_cpu_init(); + cpu_init(); preempt_disable(); smp_callin(); while (!cpu_isset(smp_processor_id(), smp_commenced_mask)) @@ -441,12 +443,6 @@ static void __cpuinit start_secondary(void *unused) void __devinit initialize_secondary(void) { /* - * switch to the per CPU GDT we already set up - * in do_boot_cpu() - */ - cpu_set_gdt(current_thread_info()->cpu); - - /* * We don't actually need to load the full TSS, * basically just the stack pointer and the eip. */ @@ -463,7 +459,6 @@ extern struct { void * esp; unsigned short ss; } stack_start; -extern struct i386_pda *start_pda; #ifdef CONFIG_NUMA @@ -521,12 +516,12 @@ static void unmap_cpu_to_logical_apicid(int cpu) unmap_cpu_to_node(cpu); } -#if APIC_DEBUG static inline void __inquire_remote_apic(int apicid) { int i, regs[] = { APIC_ID >> 4, APIC_LVR >> 4, APIC_SPIV >> 4 }; char *names[] = { "ID", "VERSION", "SPIV" }; - int timeout, status; + int timeout; + unsigned long status; printk("Inquiring remote APIC #%d...\n", apicid); @@ -536,7 +531,9 @@ static inline void __inquire_remote_apic(int apicid) /* * Wait for idle. */ - apic_wait_icr_idle(); + status = safe_apic_wait_icr_idle(); + if (status) + printk("a previous APIC delivery may have failed\n"); apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(apicid)); apic_write_around(APIC_ICR, APIC_DM_REMRD | regs[i]); @@ -550,14 +547,13 @@ static inline void __inquire_remote_apic(int apicid) switch (status) { case APIC_ICR_RR_VALID: status = apic_read(APIC_RRR); - printk("%08x\n", status); + printk("%lx\n", status); break; default: printk("failed\n"); } } } -#endif #ifdef WAKE_SECONDARY_VIA_NMI /* @@ -568,8 +564,8 @@ static inline void __inquire_remote_apic(int apicid) static int __devinit wakeup_secondary_cpu(int logical_apicid, unsigned long start_eip) { - unsigned long send_status = 0, accept_status = 0; - int timeout, maxlvt; + unsigned long send_status, accept_status = 0; + int maxlvt; /* Target chip */ apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(logical_apicid)); @@ -579,12 +575,7 @@ wakeup_secondary_cpu(int logical_apicid, unsigned long start_eip) apic_write_around(APIC_ICR, APIC_DM_NMI | APIC_DEST_LOGICAL); Dprintk("Waiting for send to finish...\n"); - timeout = 0; - do { - Dprintk("+"); - udelay(100); - send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY; - } while (send_status && (timeout++ < 1000)); + send_status = safe_apic_wait_icr_idle(); /* * Give the other CPU some time to accept the IPI. @@ -614,8 +605,8 @@ wakeup_secondary_cpu(int logical_apicid, unsigned long start_eip) static int __devinit wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) { - unsigned long send_status = 0, accept_status = 0; - int maxlvt, timeout, num_starts, j; + unsigned long send_status, accept_status = 0; + int maxlvt, num_starts, j; /* * Be paranoid about clearing APIC errors. @@ -640,12 +631,7 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) | APIC_DM_INIT); Dprintk("Waiting for send to finish...\n"); - timeout = 0; - do { - Dprintk("+"); - udelay(100); - send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY; - } while (send_status && (timeout++ < 1000)); + send_status = safe_apic_wait_icr_idle(); mdelay(10); @@ -658,12 +644,7 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) apic_write_around(APIC_ICR, APIC_INT_LEVELTRIG | APIC_DM_INIT); Dprintk("Waiting for send to finish...\n"); - timeout = 0; - do { - Dprintk("+"); - udelay(100); - send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY; - } while (send_status && (timeout++ < 1000)); + send_status = safe_apic_wait_icr_idle(); atomic_set(&init_deasserted, 1); @@ -719,12 +700,7 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) Dprintk("Startup point 1.\n"); Dprintk("Waiting for send to finish...\n"); - timeout = 0; - do { - Dprintk("+"); - udelay(100); - send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY; - } while (send_status && (timeout++ < 1000)); + send_status = safe_apic_wait_icr_idle(); /* * Give the other CPU some time to accept the IPI. @@ -788,6 +764,25 @@ static inline struct task_struct * alloc_idle_task(int cpu) #define alloc_idle_task(cpu) fork_idle(cpu) #endif +/* Initialize the CPU's GDT. This is either the boot CPU doing itself + (still using the master per-cpu area), or a CPU doing it for a + secondary which will soon come up. */ +static __cpuinit void init_gdt(int cpu) +{ + struct desc_struct *gdt = get_cpu_gdt_table(cpu); + + pack_descriptor((u32 *)&gdt[GDT_ENTRY_PERCPU].a, + (u32 *)&gdt[GDT_ENTRY_PERCPU].b, + __per_cpu_offset[cpu], 0xFFFFF, + 0x80 | DESCTYPE_S | 0x2, 0x8); + + per_cpu(this_cpu_off, cpu) = __per_cpu_offset[cpu]; + per_cpu(cpu_number, cpu) = cpu; +} + +/* Defined in head.S */ +extern struct Xgt_desc_struct early_gdt_descr; + static int __cpuinit do_boot_cpu(int apicid, int cpu) /* * NOTE - on most systems this is a PHYSICAL apic ID, but on multiquad @@ -802,6 +797,12 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu) unsigned short nmi_high = 0, nmi_low = 0; /* + * Save current MTRR state in case it was changed since early boot + * (e.g. by the ACPI SMI) to initialize new CPUs with MTRRs in sync: + */ + mtrr_save_state(); + + /* * We can't use kernel_thread since we must avoid to * reschedule the child. */ @@ -809,13 +810,9 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu) if (IS_ERR(idle)) panic("failed fork for CPU %d", cpu); - /* Pre-allocate and initialize the CPU's GDT and PDA so it - doesn't have to do any memory allocation during the - delicate CPU-bringup phase. */ - if (!init_gdt(cpu, idle)) { - printk(KERN_INFO "Couldn't allocate GDT/PDA for CPU %d\n", cpu); - return -1; /* ? */ - } + init_gdt(cpu); + per_cpu(current_task, cpu) = idle; + early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); idle->thread.eip = (unsigned long) start_secondary; /* start_eip had better be page-aligned! */ @@ -941,7 +938,6 @@ static int __cpuinit __smp_prepare_cpu(int cpu) DECLARE_COMPLETION_ONSTACK(done); struct warm_boot_cpu_info info; int apicid, ret; - struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, cpu); apicid = x86_cpu_to_apicid[cpu]; if (apicid == BAD_APICID) { @@ -949,18 +945,6 @@ static int __cpuinit __smp_prepare_cpu(int cpu) goto exit; } - /* - * the CPU isn't initialized at boot time, allocate gdt table here. - * cpu_init will initialize it - */ - if (!cpu_gdt_descr->address) { - cpu_gdt_descr->address = get_zeroed_page(GFP_KERNEL); - if (!cpu_gdt_descr->address) - printk(KERN_CRIT "CPU%d failed to allocate GDT\n", cpu); - ret = -ENOMEM; - goto exit; - } - info.complete = &done; info.apicid = apicid; info.cpu = cpu; @@ -1173,7 +1157,7 @@ static void __init smp_boot_cpus(unsigned int max_cpus) /* These are wrappers to interface to the new boot process. Someone who understands all this stuff should rewrite it properly. --RR 15/Jul/02 */ -void __init smp_prepare_cpus(unsigned int max_cpus) +void __init native_smp_prepare_cpus(unsigned int max_cpus) { smp_commenced_mask = cpumask_of_cpu(0); cpu_callin_map = cpumask_of_cpu(0); @@ -1181,13 +1165,18 @@ void __init smp_prepare_cpus(unsigned int max_cpus) smp_boot_cpus(max_cpus); } -void __devinit smp_prepare_boot_cpu(void) +void __init native_smp_prepare_boot_cpu(void) { - cpu_set(smp_processor_id(), cpu_online_map); - cpu_set(smp_processor_id(), cpu_callout_map); - cpu_set(smp_processor_id(), cpu_present_map); - cpu_set(smp_processor_id(), cpu_possible_map); - per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE; + unsigned int cpu = smp_processor_id(); + + init_gdt(cpu); + switch_to_new_gdt(); + + cpu_set(cpu, cpu_online_map); + cpu_set(cpu, cpu_callout_map); + cpu_set(cpu, cpu_present_map); + cpu_set(cpu, cpu_possible_map); + __get_cpu_var(cpu_state) = CPU_ONLINE; } #ifdef CONFIG_HOTPLUG_CPU @@ -1277,7 +1266,7 @@ void __cpu_die(unsigned int cpu) } #endif /* CONFIG_HOTPLUG_CPU */ -int __cpuinit __cpu_up(unsigned int cpu) +int __cpuinit native_cpu_up(unsigned int cpu) { unsigned long flags; #ifdef CONFIG_HOTPLUG_CPU @@ -1319,15 +1308,10 @@ int __cpuinit __cpu_up(unsigned int cpu) touch_nmi_watchdog(); } -#ifdef CONFIG_X86_GENERICARCH - if (num_online_cpus() > 8 && genapic == &apic_default) - panic("Default flat APIC routing can't be used with > 8 cpus\n"); -#endif - return 0; } -void __init smp_cpus_done(unsigned int max_cpus) +void __init native_smp_cpus_done(unsigned int max_cpus) { #ifdef CONFIG_X86_IO_APIC setup_ioapic_dest(); diff --git a/arch/i386/kernel/sysenter.c b/arch/i386/kernel/sysenter.c index 13ca54a..ff4ee6f 100644 --- a/arch/i386/kernel/sysenter.c +++ b/arch/i386/kernel/sysenter.c @@ -22,16 +22,26 @@ #include <asm/msr.h> #include <asm/pgtable.h> #include <asm/unistd.h> +#include <asm/elf.h> +#include <asm/tlbflush.h> + +enum { + VDSO_DISABLED = 0, + VDSO_ENABLED = 1, + VDSO_COMPAT = 2, +}; + +#ifdef CONFIG_COMPAT_VDSO +#define VDSO_DEFAULT VDSO_COMPAT +#else +#define VDSO_DEFAULT VDSO_ENABLED +#endif /* * Should the kernel map a VDSO page into processes and pass its * address down to glibc upon exec()? */ -#ifdef CONFIG_PARAVIRT -unsigned int __read_mostly vdso_enabled = 0; -#else -unsigned int __read_mostly vdso_enabled = 1; -#endif +unsigned int __read_mostly vdso_enabled = VDSO_DEFAULT; EXPORT_SYMBOL_GPL(vdso_enabled); @@ -46,6 +56,123 @@ __setup("vdso=", vdso_setup); extern asmlinkage void sysenter_entry(void); +static __init void reloc_symtab(Elf32_Ehdr *ehdr, + unsigned offset, unsigned size) +{ + Elf32_Sym *sym = (void *)ehdr + offset; + unsigned nsym = size / sizeof(*sym); + unsigned i; + + for(i = 0; i < nsym; i++, sym++) { + if (sym->st_shndx == SHN_UNDEF || + sym->st_shndx == SHN_ABS) + continue; /* skip */ + + if (sym->st_shndx > SHN_LORESERVE) { + printk(KERN_INFO "VDSO: unexpected st_shndx %x\n", + sym->st_shndx); + continue; + } + + switch(ELF_ST_TYPE(sym->st_info)) { + case STT_OBJECT: + case STT_FUNC: + case STT_SECTION: + case STT_FILE: + sym->st_value += VDSO_HIGH_BASE; + } + } +} + +static __init void reloc_dyn(Elf32_Ehdr *ehdr, unsigned offset) +{ + Elf32_Dyn *dyn = (void *)ehdr + offset; + + for(; dyn->d_tag != DT_NULL; dyn++) + switch(dyn->d_tag) { + case DT_PLTGOT: + case DT_HASH: + case DT_STRTAB: + case DT_SYMTAB: + case DT_RELA: + case DT_INIT: + case DT_FINI: + case DT_REL: + case DT_DEBUG: + case DT_JMPREL: + case DT_VERSYM: + case DT_VERDEF: + case DT_VERNEED: + case DT_ADDRRNGLO ... DT_ADDRRNGHI: + /* definitely pointers needing relocation */ + dyn->d_un.d_ptr += VDSO_HIGH_BASE; + break; + + case DT_ENCODING ... OLD_DT_LOOS-1: + case DT_LOOS ... DT_HIOS-1: + /* Tags above DT_ENCODING are pointers if + they're even */ + if (dyn->d_tag >= DT_ENCODING && + (dyn->d_tag & 1) == 0) + dyn->d_un.d_ptr += VDSO_HIGH_BASE; + break; + + case DT_VERDEFNUM: + case DT_VERNEEDNUM: + case DT_FLAGS_1: + case DT_RELACOUNT: + case DT_RELCOUNT: + case DT_VALRNGLO ... DT_VALRNGHI: + /* definitely not pointers */ + break; + + case OLD_DT_LOOS ... DT_LOOS-1: + case DT_HIOS ... DT_VALRNGLO-1: + default: + if (dyn->d_tag > DT_ENCODING) + printk(KERN_INFO "VDSO: unexpected DT_tag %x\n", + dyn->d_tag); + break; + } +} + +static __init void relocate_vdso(Elf32_Ehdr *ehdr) +{ + Elf32_Phdr *phdr; + Elf32_Shdr *shdr; + int i; + + BUG_ON(memcmp(ehdr->e_ident, ELFMAG, 4) != 0 || + !elf_check_arch(ehdr) || + ehdr->e_type != ET_DYN); + + ehdr->e_entry += VDSO_HIGH_BASE; + + /* rebase phdrs */ + phdr = (void *)ehdr + ehdr->e_phoff; + for (i = 0; i < ehdr->e_phnum; i++) { + phdr[i].p_vaddr += VDSO_HIGH_BASE; + + /* relocate dynamic stuff */ + if (phdr[i].p_type == PT_DYNAMIC) + reloc_dyn(ehdr, phdr[i].p_offset); + } + + /* rebase sections */ + shdr = (void *)ehdr + ehdr->e_shoff; + for(i = 0; i < ehdr->e_shnum; i++) { + if (!(shdr[i].sh_flags & SHF_ALLOC)) + continue; + + shdr[i].sh_addr += VDSO_HIGH_BASE; + + if (shdr[i].sh_type == SHT_SYMTAB || + shdr[i].sh_type == SHT_DYNSYM) + reloc_symtab(ehdr, shdr[i].sh_offset, + shdr[i].sh_size); + } +} + void enable_sep_cpu(void) { int cpu = get_cpu(); @@ -56,14 +183,33 @@ void enable_sep_cpu(void) return; } - tss->ss1 = __KERNEL_CS; - tss->esp1 = sizeof(struct tss_struct) + (unsigned long) tss; + tss->x86_tss.ss1 = __KERNEL_CS; + tss->x86_tss.esp1 = sizeof(struct tss_struct) + (unsigned long) tss; wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0); - wrmsr(MSR_IA32_SYSENTER_ESP, tss->esp1, 0); + wrmsr(MSR_IA32_SYSENTER_ESP, tss->x86_tss.esp1, 0); wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long) sysenter_entry, 0); put_cpu(); } +static struct vm_area_struct gate_vma; + +static int __init gate_vma_init(void) +{ + gate_vma.vm_mm = NULL; + gate_vma.vm_start = FIXADDR_USER_START; + gate_vma.vm_end = FIXADDR_USER_END; + gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC; + gate_vma.vm_page_prot = __P101; + /* + * Make sure the vDSO gets into every core dump. + * Dumping its contents makes post-mortem fully interpretable later + * without matching up the same kernel and hardware config to see + * what PC values meant. + */ + gate_vma.vm_flags |= VM_ALWAYSDUMP; + return 0; +} + /* * These symbols are defined by vsyscall.o to mark the bounds * of the ELF DSO images included therein. @@ -72,31 +218,48 @@ extern const char vsyscall_int80_start, vsyscall_int80_end; extern const char vsyscall_sysenter_start, vsyscall_sysenter_end; static struct page *syscall_pages[1]; +static void map_compat_vdso(int map) +{ + static int vdso_mapped; + + if (map == vdso_mapped) + return; + + vdso_mapped = map; + + __set_fixmap(FIX_VDSO, page_to_pfn(syscall_pages[0]) << PAGE_SHIFT, + map ? PAGE_READONLY_EXEC : PAGE_NONE); + + /* flush stray tlbs */ + flush_tlb_all(); +} + int __init sysenter_setup(void) { void *syscall_page = (void *)get_zeroed_page(GFP_ATOMIC); + const void *vsyscall; + size_t vsyscall_len; + syscall_pages[0] = virt_to_page(syscall_page); -#ifdef CONFIG_COMPAT_VDSO - __set_fixmap(FIX_VDSO, __pa(syscall_page), PAGE_READONLY_EXEC); + gate_vma_init(); + printk("Compat vDSO mapped to %08lx.\n", __fix_to_virt(FIX_VDSO)); -#endif if (!boot_cpu_has(X86_FEATURE_SEP)) { - memcpy(syscall_page, - &vsyscall_int80_start, - &vsyscall_int80_end - &vsyscall_int80_start); - return 0; + vsyscall = &vsyscall_int80_start; + vsyscall_len = &vsyscall_int80_end - &vsyscall_int80_start; + } else { + vsyscall = &vsyscall_sysenter_start; + vsyscall_len = &vsyscall_sysenter_end - &vsyscall_sysenter_start; } - memcpy(syscall_page, - &vsyscall_sysenter_start, - &vsyscall_sysenter_end - &vsyscall_sysenter_start); + memcpy(syscall_page, vsyscall, vsyscall_len); + relocate_vdso(syscall_page); return 0; } -#ifndef CONFIG_COMPAT_VDSO /* Defined in vsyscall-sysenter.S */ extern void SYSENTER_RETURN; @@ -105,36 +268,52 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int exstack) { struct mm_struct *mm = current->mm; unsigned long addr; - int ret; + int ret = 0; + bool compat; down_write(&mm->mmap_sem); - addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0); - if (IS_ERR_VALUE(addr)) { - ret = addr; - goto up_fail; - } - /* - * MAYWRITE to allow gdb to COW and set breakpoints - * - * Make sure the vDSO gets into every core dump. - * Dumping its contents makes post-mortem fully interpretable later - * without matching up the same kernel and hardware config to see - * what PC values meant. - */ - ret = install_special_mapping(mm, addr, PAGE_SIZE, - VM_READ|VM_EXEC| - VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC| - VM_ALWAYSDUMP, - syscall_pages); - if (ret) - goto up_fail; + /* Test compat mode once here, in case someone + changes it via sysctl */ + compat = (vdso_enabled == VDSO_COMPAT); + + map_compat_vdso(compat); + + if (compat) + addr = VDSO_HIGH_BASE; + else { + addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0); + if (IS_ERR_VALUE(addr)) { + ret = addr; + goto up_fail; + } + + /* + * MAYWRITE to allow gdb to COW and set breakpoints + * + * Make sure the vDSO gets into every core dump. + * Dumping its contents makes post-mortem fully + * interpretable later without matching up the same + * kernel and hardware config to see what PC values + * meant. + */ + ret = install_special_mapping(mm, addr, PAGE_SIZE, + VM_READ|VM_EXEC| + VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC| + VM_ALWAYSDUMP, + syscall_pages); + + if (ret) + goto up_fail; + } current->mm->context.vdso = (void *)addr; current_thread_info()->sysenter_return = - (void *)VDSO_SYM(&SYSENTER_RETURN); -up_fail: + (void *)VDSO_SYM(&SYSENTER_RETURN); + + up_fail: up_write(&mm->mmap_sem); + return ret; } @@ -147,6 +326,11 @@ const char *arch_vma_name(struct vm_area_struct *vma) struct vm_area_struct *get_gate_vma(struct task_struct *tsk) { + struct mm_struct *mm = tsk->mm; + + /* Check to see if this task was created in compat vdso mode */ + if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE) + return &gate_vma; return NULL; } @@ -159,4 +343,3 @@ int in_gate_area_no_task(unsigned long addr) { return 0; } -#endif diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c index 94e5cb0..a665df6 100644 --- a/arch/i386/kernel/time.c +++ b/arch/i386/kernel/time.c @@ -70,8 +70,6 @@ #include <asm/i8259.h> -int pit_latch_buggy; /* extern */ - #include "do_timer.h" unsigned int cpu_khz; /* Detected as we calibrate the TSC */ diff --git a/arch/i386/kernel/trampoline.S b/arch/i386/kernel/trampoline.S index 2f1814c..f62815f 100644 --- a/arch/i386/kernel/trampoline.S +++ b/arch/i386/kernel/trampoline.S @@ -29,7 +29,7 @@ * * TYPE VALUE * R_386_32 startup_32_smp - * R_386_32 boot_gdt_table + * R_386_32 boot_gdt */ #include <linux/linkage.h> @@ -62,8 +62,8 @@ r_base = . * to 32 bit. */ - lidtl boot_idt - r_base # load idt with 0, 0 - lgdtl boot_gdt - r_base # load gdt with whatever is appropriate + lidtl boot_idt_descr - r_base # load idt with 0, 0 + lgdtl boot_gdt_descr - r_base # load gdt with whatever is appropriate xor %ax, %ax inc %ax # protected mode (PE) bit @@ -73,11 +73,11 @@ r_base = . # These need to be in the same 64K segment as the above; # hence we don't use the boot_gdt_descr defined in head.S -boot_gdt: +boot_gdt_descr: .word __BOOT_DS + 7 # gdt limit - .long boot_gdt_table-__PAGE_OFFSET # gdt base + .long boot_gdt - __PAGE_OFFSET # gdt base -boot_idt: +boot_idt_descr: .word 0 # idt limit = 0 .long 0 # idt base = 0L diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index af0d3f7..f21b41e 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -476,8 +476,6 @@ static void __kprobes do_trap(int trapnr, int signr, char *str, int vm86, siginfo_t *info) { struct task_struct *tsk = current; - tsk->thread.error_code = error_code; - tsk->thread.trap_no = trapnr; if (regs->eflags & VM_MASK) { if (vm86) @@ -489,6 +487,18 @@ static void __kprobes do_trap(int trapnr, int signr, char *str, int vm86, goto kernel_trap; trap_signal: { + /* + * We want error_code and trap_no set for userspace faults and + * kernelspace faults which result in die(), but not + * kernelspace faults which are fixed up. die() gives the + * process no chance to handle the signal and notice the + * kernel fault information, so that won't result in polluting + * the information about previously queued, but not yet + * delivered, faults. See also do_general_protection below. + */ + tsk->thread.error_code = error_code; + tsk->thread.trap_no = trapnr; + if (info) force_sig_info(signr, info, tsk); else @@ -497,8 +507,11 @@ static void __kprobes do_trap(int trapnr, int signr, char *str, int vm86, } kernel_trap: { - if (!fixup_exception(regs)) + if (!fixup_exception(regs)) { + tsk->thread.error_code = error_code; + tsk->thread.trap_no = trapnr; die(str, regs, error_code); + } return; } @@ -583,7 +596,7 @@ fastcall void __kprobes do_general_protection(struct pt_regs * regs, * and we set the offset field correctly. Then we let the CPU to * restart the faulting instruction. */ - if (tss->io_bitmap_base == INVALID_IO_BITMAP_OFFSET_LAZY && + if (tss->x86_tss.io_bitmap_base == INVALID_IO_BITMAP_OFFSET_LAZY && thread->io_bitmap_ptr) { memcpy(tss->io_bitmap, thread->io_bitmap_ptr, thread->io_bitmap_max); @@ -596,16 +609,13 @@ fastcall void __kprobes do_general_protection(struct pt_regs * regs, thread->io_bitmap_max, 0xff, tss->io_bitmap_max - thread->io_bitmap_max); tss->io_bitmap_max = thread->io_bitmap_max; - tss->io_bitmap_base = IO_BITMAP_OFFSET; + tss->x86_tss.io_bitmap_base = IO_BITMAP_OFFSET; tss->io_bitmap_owner = thread; put_cpu(); return; } put_cpu(); - current->thread.error_code = error_code; - current->thread.trap_no = 13; - if (regs->eflags & VM_MASK) goto gp_in_vm86; @@ -624,6 +634,8 @@ gp_in_vm86: gp_in_kernel: if (!fixup_exception(regs)) { + current->thread.error_code = error_code; + current->thread.trap_no = 13; if (notify_die(DIE_GPF, "general protection fault", regs, error_code, 13, SIGSEGV) == NOTIFY_STOP) return; @@ -1018,9 +1030,7 @@ fastcall void do_spurious_interrupt_bug(struct pt_regs * regs, fastcall unsigned long patch_espfix_desc(unsigned long uesp, unsigned long kesp) { - int cpu = smp_processor_id(); - struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, cpu); - struct desc_struct *gdt = (struct desc_struct *)cpu_gdt_descr->address; + struct desc_struct *gdt = __get_cpu_var(gdt_page).gdt; unsigned long base = (kesp - uesp) & -THREAD_SIZE; unsigned long new_kesp = kesp - base; unsigned long lim_pages = (new_kesp | (THREAD_SIZE - 1)) >> PAGE_SHIFT; diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c index 6cb8f53..f64b81f 100644 --- a/arch/i386/kernel/tsc.c +++ b/arch/i386/kernel/tsc.c @@ -200,13 +200,10 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, void *data) { struct cpufreq_freqs *freq = data; - if (val != CPUFREQ_RESUMECHANGE && val != CPUFREQ_SUSPENDCHANGE) - write_seqlock_irq(&xtime_lock); - if (!ref_freq) { if (!freq->old){ ref_freq = freq->new; - goto end; + return 0; } ref_freq = freq->old; loops_per_jiffy_ref = cpu_data[freq->cpu].loops_per_jiffy; @@ -233,13 +230,10 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, void *data) * TSC based sched_clock turns * to junk w/ cpufreq */ - mark_tsc_unstable(); + mark_tsc_unstable("cpufreq changes"); } } } -end: - if (val != CPUFREQ_RESUMECHANGE && val != CPUFREQ_SUSPENDCHANGE) - write_sequnlock_irq(&xtime_lock); return 0; } @@ -281,11 +275,12 @@ static struct clocksource clocksource_tsc = { CLOCK_SOURCE_MUST_VERIFY, }; -void mark_tsc_unstable(void) +void mark_tsc_unstable(char *reason) { if (!tsc_unstable) { tsc_unstable = 1; tsc_enabled = 0; + printk("Marking TSC unstable due to: %s.\n", reason); /* Can be called before registration */ if (clocksource_tsc.mult) clocksource_change_rating(&clocksource_tsc, 0); diff --git a/arch/i386/kernel/verify_cpu.S b/arch/i386/kernel/verify_cpu.S new file mode 100644 index 0000000..e51a869 --- /dev/null +++ b/arch/i386/kernel/verify_cpu.S @@ -0,0 +1,65 @@ +/* Check if CPU has some minimum CPUID bits + This runs in 16bit mode so that the caller can still use the BIOS + to output errors on the screen */ +#include <asm/cpufeature.h> + +verify_cpu: + pushfl # Save caller passed flags + pushl $0 # Kill any dangerous flags + popfl + +#if CONFIG_X86_MINIMUM_CPU_MODEL >= 4 + pushfl + orl $(1<<18),(%esp) # try setting AC + popfl + pushfl + popl %eax + testl $(1<<18),%eax + jz bad +#endif +#if REQUIRED_MASK1 != 0 + pushfl # standard way to check for cpuid + popl %eax + movl %eax,%ebx + xorl $0x200000,%eax + pushl %eax + popfl + pushfl + popl %eax + cmpl %eax,%ebx + pushfl # standard way to check for cpuid + popl %eax + movl %eax,%ebx + xorl $0x200000,%eax + pushl %eax + popfl + pushfl + popl %eax + cmpl %eax,%ebx + jz bad # REQUIRED_MASK1 != 0 requires CPUID + + movl $0x0,%eax # See if cpuid 1 is implemented + cpuid + cmpl $0x1,%eax + jb bad # no cpuid 1 + + movl $0x1,%eax # Does the cpu have what it takes + cpuid + +#if CONFIG_X86_MINIMUM_CPU_MODEL > 4 +#error add proper model checking here +#endif + + andl $REQUIRED_MASK1,%edx + xorl $REQUIRED_MASK1,%edx + jnz bad +#endif /* REQUIRED_MASK1 */ + + popfl + xor %eax,%eax + ret + +bad: + popfl + movl $1,%eax + ret diff --git a/arch/i386/kernel/vmi.c b/arch/i386/kernel/vmi.c index 697a70e..c8726c4 100644 --- a/arch/i386/kernel/vmi.c +++ b/arch/i386/kernel/vmi.c @@ -26,6 +26,7 @@ #include <linux/cpu.h> #include <linux/bootmem.h> #include <linux/mm.h> +#include <linux/highmem.h> #include <asm/vmi.h> #include <asm/io.h> #include <asm/fixmap.h> @@ -56,7 +57,7 @@ static int disable_noidle; static int disable_vmi_timer; /* Cached VMI operations */ -struct { +static struct { void (*cpuid)(void /* non-c */); void (*_set_ldt)(u32 selector); void (*set_tr)(u32 selector); @@ -65,16 +66,15 @@ struct { void (*release_page)(u32, u32); void (*set_pte)(pte_t, pte_t *, unsigned); void (*update_pte)(pte_t *, unsigned); - void (*set_linear_mapping)(int, u32, u32, u32); - void (*flush_tlb)(int); + void (*set_linear_mapping)(int, void *, u32, u32); + void (*_flush_tlb)(int); void (*set_initial_ap_state)(int, int); void (*halt)(void); void (*set_lazy_mode)(int mode); } vmi_ops; -/* XXX move this to alternative.h */ -extern struct paravirt_patch __start_parainstructions[], - __stop_parainstructions[]; +/* Cached VMI operations */ +struct vmi_timer_ops vmi_timer_ops; /* * VMI patching routines. @@ -83,11 +83,6 @@ extern struct paravirt_patch __start_parainstructions[], #define MNEM_JMP 0xe9 #define MNEM_RET 0xc3 -static char irq_save_disable_callout[] = { - MNEM_CALL, 0, 0, 0, 0, - MNEM_CALL, 0, 0, 0, 0, - MNEM_RET -}; #define IRQ_PATCH_INT_MASK 0 #define IRQ_PATCH_DISABLE 5 @@ -135,33 +130,17 @@ static unsigned patch_internal(int call, unsigned len, void *insns) static unsigned vmi_patch(u8 type, u16 clobbers, void *insns, unsigned len) { switch (type) { - case PARAVIRT_IRQ_DISABLE: + case PARAVIRT_PATCH(irq_disable): return patch_internal(VMI_CALL_DisableInterrupts, len, insns); - case PARAVIRT_IRQ_ENABLE: + case PARAVIRT_PATCH(irq_enable): return patch_internal(VMI_CALL_EnableInterrupts, len, insns); - case PARAVIRT_RESTORE_FLAGS: + case PARAVIRT_PATCH(restore_fl): return patch_internal(VMI_CALL_SetInterruptMask, len, insns); - case PARAVIRT_SAVE_FLAGS: + case PARAVIRT_PATCH(save_fl): return patch_internal(VMI_CALL_GetInterruptMask, len, insns); - case PARAVIRT_SAVE_FLAGS_IRQ_DISABLE: - if (len >= 10) { - patch_internal(VMI_CALL_GetInterruptMask, len, insns); - patch_internal(VMI_CALL_DisableInterrupts, len-5, insns+5); - return 10; - } else { - /* - * You bastards didn't leave enough room to - * patch save_flags_irq_disable inline. Patch - * to a helper - */ - BUG_ON(len < 5); - *(char *)insns = MNEM_CALL; - patch_offset(insns, irq_save_disable_callout); - return 5; - } - case PARAVIRT_INTERRUPT_RETURN: + case PARAVIRT_PATCH(iret): return patch_internal(VMI_CALL_IRET, len, insns); - case PARAVIRT_STI_SYSEXIT: + case PARAVIRT_PATCH(irq_enable_sysexit): return patch_internal(VMI_CALL_SYSEXIT, len, insns); default: break; @@ -230,24 +209,24 @@ static void vmi_set_tr(void) static void vmi_load_esp0(struct tss_struct *tss, struct thread_struct *thread) { - tss->esp0 = thread->esp0; + tss->x86_tss.esp0 = thread->esp0; /* This can only happen when SEP is enabled, no need to test "SEP"arately */ - if (unlikely(tss->ss1 != thread->sysenter_cs)) { - tss->ss1 = thread->sysenter_cs; + if (unlikely(tss->x86_tss.ss1 != thread->sysenter_cs)) { + tss->x86_tss.ss1 = thread->sysenter_cs; wrmsr(MSR_IA32_SYSENTER_CS, thread->sysenter_cs, 0); } - vmi_ops.set_kernel_stack(__KERNEL_DS, tss->esp0); + vmi_ops.set_kernel_stack(__KERNEL_DS, tss->x86_tss.esp0); } static void vmi_flush_tlb_user(void) { - vmi_ops.flush_tlb(VMI_FLUSH_TLB); + vmi_ops._flush_tlb(VMI_FLUSH_TLB); } static void vmi_flush_tlb_kernel(void) { - vmi_ops.flush_tlb(VMI_FLUSH_TLB | VMI_FLUSH_GLOBAL); + vmi_ops._flush_tlb(VMI_FLUSH_TLB | VMI_FLUSH_GLOBAL); } /* Stub to do nothing at all; used for delays and unimplemented calls */ @@ -255,18 +234,6 @@ static void vmi_nop(void) { } -/* For NO_IDLE_HZ, we stop the clock when halting the kernel */ -static fastcall void vmi_safe_halt(void) -{ - int idle = vmi_stop_hz_timer(); - vmi_ops.halt(); - if (idle) { - local_irq_disable(); - vmi_account_time_restart_hz_timer(); - local_irq_enable(); - } -} - #ifdef CONFIG_DEBUG_PAGE_TYPE #ifdef CONFIG_X86_PAE @@ -370,8 +337,11 @@ static void vmi_check_page_type(u32 pfn, int type) #define vmi_check_page_type(p,t) do { } while (0) #endif -static void vmi_map_pt_hook(int type, pte_t *va, u32 pfn) +#ifdef CONFIG_HIGHPTE +static void *vmi_kmap_atomic_pte(struct page *page, enum km_type type) { + void *va = kmap_atomic(page, type); + /* * Internally, the VMI ROM must map virtual addresses to physical * addresses for processing MMU updates. By the time MMU updates @@ -385,8 +355,11 @@ static void vmi_map_pt_hook(int type, pte_t *va, u32 pfn) * args: SLOT VA COUNT PFN */ BUG_ON(type != KM_PTE0 && type != KM_PTE1); - vmi_ops.set_linear_mapping((type - KM_PTE0)+1, (u32)va, 1, pfn); + vmi_ops.set_linear_mapping((type - KM_PTE0)+1, va, 1, page_to_pfn(page)); + + return va; } +#endif static void vmi_allocate_pt(u32 pfn) { @@ -443,13 +416,13 @@ static void vmi_release_pd(u32 pfn) ((level) | (is_current_as(mm, user) ? \ (VMI_PAGE_DEFER | VMI_PAGE_CURRENT_AS | ((addr) & VMI_PAGE_VA_MASK)) : 0)) -static void vmi_update_pte(struct mm_struct *mm, u32 addr, pte_t *ptep) +static void vmi_update_pte(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { vmi_check_page_type(__pa(ptep) >> PAGE_SHIFT, VMI_PAGE_PTE); vmi_ops.update_pte(ptep, vmi_flags_addr(mm, addr, VMI_PAGE_PT, 0)); } -static void vmi_update_pte_defer(struct mm_struct *mm, u32 addr, pte_t *ptep) +static void vmi_update_pte_defer(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { vmi_check_page_type(__pa(ptep) >> PAGE_SHIFT, VMI_PAGE_PTE); vmi_ops.update_pte(ptep, vmi_flags_addr_defer(mm, addr, VMI_PAGE_PT, 0)); @@ -462,7 +435,7 @@ static void vmi_set_pte(pte_t *ptep, pte_t pte) vmi_ops.set_pte(pte, ptep, VMI_PAGE_PT); } -static void vmi_set_pte_at(struct mm_struct *mm, u32 addr, pte_t *ptep, pte_t pte) +static void vmi_set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte) { vmi_check_page_type(__pa(ptep) >> PAGE_SHIFT, VMI_PAGE_PTE); vmi_ops.set_pte(pte, ptep, vmi_flags_addr(mm, addr, VMI_PAGE_PT, 0)); @@ -516,7 +489,7 @@ static void vmi_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) vmi_ops.set_pte(pte, ptep, vmi_flags_addr(mm, addr, VMI_PAGE_PT, 0)); } -void vmi_pmd_clear(pmd_t *pmd) +static void vmi_pmd_clear(pmd_t *pmd) { const pte_t pte = { 0 }; vmi_check_page_type(__pa(pmd) >> PAGE_SHIFT, VMI_PAGE_PMD); @@ -525,8 +498,6 @@ void vmi_pmd_clear(pmd_t *pmd) #endif #ifdef CONFIG_SMP -extern void setup_pda(void); - static void __devinit vmi_startup_ipi_hook(int phys_apicid, unsigned long start_eip, unsigned long start_esp) @@ -551,13 +522,11 @@ vmi_startup_ipi_hook(int phys_apicid, unsigned long start_eip, ap.ds = __USER_DS; ap.es = __USER_DS; - ap.fs = __KERNEL_PDA; + ap.fs = __KERNEL_PERCPU; ap.gs = 0; ap.eflags = 0; - setup_pda(); - #ifdef CONFIG_X86_PAE /* efer should match BSP efer. */ if (cpu_has_nx) { @@ -575,9 +544,9 @@ vmi_startup_ipi_hook(int phys_apicid, unsigned long start_eip, } #endif -static void vmi_set_lazy_mode(int mode) +static void vmi_set_lazy_mode(enum paravirt_lazy_mode mode) { - static DEFINE_PER_CPU(int, lazy_mode); + static DEFINE_PER_CPU(enum paravirt_lazy_mode, lazy_mode); if (!vmi_ops.set_lazy_mode) return; @@ -685,7 +654,7 @@ void vmi_bringup(void) { /* We must establish the lowmem mapping for MMU ops to work */ if (vmi_ops.set_linear_mapping) - vmi_ops.set_linear_mapping(0, __PAGE_OFFSET, max_low_pfn, 0); + vmi_ops.set_linear_mapping(0, (void *)__PAGE_OFFSET, max_low_pfn, 0); } /* @@ -740,7 +709,6 @@ do { \ } \ } while (0) - /* * Activate the VMI interface and switch into paravirtualized mode */ @@ -796,12 +764,6 @@ static inline int __init activate_vmi(void) para_fill(irq_disable, DisableInterrupts); para_fill(irq_enable, EnableInterrupts); - /* irq_save_disable !!! sheer pain */ - patch_offset(&irq_save_disable_callout[IRQ_PATCH_INT_MASK], - (char *)paravirt_ops.save_fl); - patch_offset(&irq_save_disable_callout[IRQ_PATCH_DISABLE], - (char *)paravirt_ops.irq_disable); - para_fill(wbinvd, WBINVD); para_fill(read_tsc, RDTSC); @@ -831,8 +793,8 @@ static inline int __init activate_vmi(void) para_wrap(set_lazy_mode, vmi_set_lazy_mode, set_lazy_mode, SetLazyMode); /* user and kernel flush are just handled with different flags to FlushTLB */ - para_wrap(flush_tlb_user, vmi_flush_tlb_user, flush_tlb, FlushTLB); - para_wrap(flush_tlb_kernel, vmi_flush_tlb_kernel, flush_tlb, FlushTLB); + para_wrap(flush_tlb_user, vmi_flush_tlb_user, _flush_tlb, FlushTLB); + para_wrap(flush_tlb_kernel, vmi_flush_tlb_kernel, _flush_tlb, FlushTLB); para_fill(flush_tlb_single, InvalPage); /* @@ -878,8 +840,13 @@ static inline int __init activate_vmi(void) paravirt_ops.release_pt = vmi_release_pt; paravirt_ops.release_pd = vmi_release_pd; } - para_wrap(map_pt_hook, vmi_map_pt_hook, set_linear_mapping, - SetLinearMapping); + + /* Set linear is needed in all cases */ + vmi_ops.set_linear_mapping = vmi_get_function(VMI_CALL_SetLinearMapping); +#ifdef CONFIG_HIGHPTE + if (vmi_ops.set_linear_mapping) + paravirt_ops.kmap_atomic_pte = vmi_kmap_atomic_pte; +#endif /* * These MUST always be patched. Don't support indirect jumps @@ -920,8 +887,8 @@ static inline int __init activate_vmi(void) paravirt_ops.get_wallclock = vmi_get_wallclock; paravirt_ops.set_wallclock = vmi_set_wallclock; #ifdef CONFIG_X86_LOCAL_APIC - paravirt_ops.setup_boot_clock = vmi_timer_setup_boot_alarm; - paravirt_ops.setup_secondary_clock = vmi_timer_setup_secondary_alarm; + paravirt_ops.setup_boot_clock = vmi_time_bsp_init; + paravirt_ops.setup_secondary_clock = vmi_time_ap_init; #endif paravirt_ops.get_scheduled_cycles = vmi_get_sched_cycles; paravirt_ops.get_cpu_khz = vmi_cpu_khz; @@ -933,11 +900,7 @@ static inline int __init activate_vmi(void) disable_vmi_timer = 1; } - /* No idle HZ mode only works if VMI timer and no idle is enabled */ - if (disable_noidle || disable_vmi_timer) - para_fill(safe_halt, Halt); - else - para_wrap(safe_halt, vmi_safe_halt, halt, Halt); + para_fill(safe_halt, Halt); /* * Alternative instruction rewriting doesn't happen soon enough @@ -945,7 +908,7 @@ static inline int __init activate_vmi(void) * to do this before IRQs get reenabled. Fortunately, it is * idempotent. */ - apply_paravirt(__start_parainstructions, __stop_parainstructions); + apply_paravirt(__parainstructions, __parainstructions_end); vmi_bringup(); diff --git a/arch/i386/kernel/vmiclock.c b/arch/i386/kernel/vmiclock.c new file mode 100644 index 0000000..26a37f8 --- /dev/null +++ b/arch/i386/kernel/vmiclock.c @@ -0,0 +1,318 @@ +/* + * VMI paravirtual timer support routines. + * + * Copyright (C) 2007, VMware, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include <linux/smp.h> +#include <linux/interrupt.h> +#include <linux/cpumask.h> +#include <linux/clocksource.h> +#include <linux/clockchips.h> + +#include <asm/vmi.h> +#include <asm/vmi_time.h> +#include <asm/arch_hooks.h> +#include <asm/apicdef.h> +#include <asm/apic.h> +#include <asm/timer.h> + +#include <irq_vectors.h> +#include "io_ports.h" + +#define VMI_ONESHOT (VMI_ALARM_IS_ONESHOT | VMI_CYCLES_REAL | vmi_get_alarm_wiring()) +#define VMI_PERIODIC (VMI_ALARM_IS_PERIODIC | VMI_CYCLES_REAL | vmi_get_alarm_wiring()) + +static DEFINE_PER_CPU(struct clock_event_device, local_events); + +static inline u32 vmi_counter(u32 flags) +{ + /* Given VMI_ONESHOT or VMI_PERIODIC, return the corresponding + * cycle counter. */ + return flags & VMI_ALARM_COUNTER_MASK; +} + +/* paravirt_ops.get_wallclock = vmi_get_wallclock */ +unsigned long vmi_get_wallclock(void) +{ + unsigned long long wallclock; + wallclock = vmi_timer_ops.get_wallclock(); // nsec + (void)do_div(wallclock, 1000000000); // sec + + return wallclock; +} + +/* paravirt_ops.set_wallclock = vmi_set_wallclock */ +int vmi_set_wallclock(unsigned long now) +{ + return 0; +} + +/* paravirt_ops.get_scheduled_cycles = vmi_get_sched_cycles */ +unsigned long long vmi_get_sched_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_AVAILABLE); +} + +/* paravirt_ops.get_cpu_khz = vmi_cpu_khz */ +unsigned long vmi_cpu_khz(void) +{ + unsigned long long khz; + khz = vmi_timer_ops.get_cycle_frequency(); + (void)do_div(khz, 1000); + return khz; +} + +static inline unsigned int vmi_get_timer_vector(void) +{ +#ifdef CONFIG_X86_IO_APIC + return FIRST_DEVICE_VECTOR; +#else + return FIRST_EXTERNAL_VECTOR; +#endif +} + +/** vmi clockchip */ +#ifdef CONFIG_X86_LOCAL_APIC +static unsigned int startup_timer_irq(unsigned int irq) +{ + unsigned long val = apic_read(APIC_LVTT); + apic_write(APIC_LVTT, vmi_get_timer_vector()); + + return (val & APIC_SEND_PENDING); +} + +static void mask_timer_irq(unsigned int irq) +{ + unsigned long val = apic_read(APIC_LVTT); + apic_write(APIC_LVTT, val | APIC_LVT_MASKED); +} + +static void unmask_timer_irq(unsigned int irq) +{ + unsigned long val = apic_read(APIC_LVTT); + apic_write(APIC_LVTT, val & ~APIC_LVT_MASKED); +} + +static void ack_timer_irq(unsigned int irq) +{ + ack_APIC_irq(); +} + +static struct irq_chip vmi_chip __read_mostly = { + .name = "VMI-LOCAL", + .startup = startup_timer_irq, + .mask = mask_timer_irq, + .unmask = unmask_timer_irq, + .ack = ack_timer_irq +}; +#endif + +/** vmi clockevent */ +#define VMI_ALARM_WIRED_IRQ0 0x00000000 +#define VMI_ALARM_WIRED_LVTT 0x00010000 +static int vmi_wiring = VMI_ALARM_WIRED_IRQ0; + +static inline int vmi_get_alarm_wiring(void) +{ + return vmi_wiring; +} + +static void vmi_timer_set_mode(enum clock_event_mode mode, + struct clock_event_device *evt) +{ + cycle_t now, cycles_per_hz; + BUG_ON(!irqs_disabled()); + + switch (mode) { + case CLOCK_EVT_MODE_ONESHOT: + break; + case CLOCK_EVT_MODE_PERIODIC: + cycles_per_hz = vmi_timer_ops.get_cycle_frequency(); + (void)do_div(cycles_per_hz, HZ); + now = vmi_timer_ops.get_cycle_counter(vmi_counter(VMI_PERIODIC)); + vmi_timer_ops.set_alarm(VMI_PERIODIC, now, cycles_per_hz); + break; + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: + switch (evt->mode) { + case CLOCK_EVT_MODE_ONESHOT: + vmi_timer_ops.cancel_alarm(VMI_ONESHOT); + break; + case CLOCK_EVT_MODE_PERIODIC: + vmi_timer_ops.cancel_alarm(VMI_PERIODIC); + break; + default: + break; + } + break; + default: + break; + } +} + +static int vmi_timer_next_event(unsigned long delta, + struct clock_event_device *evt) +{ + /* Unfortunately, set_next_event interface only passes relative + * expiry, but we want absolute expiry. It'd be better if were + * were passed an aboslute expiry, since a bunch of time may + * have been stolen between the time the delta is computed and + * when we set the alarm below. */ + cycle_t now = vmi_timer_ops.get_cycle_counter(vmi_counter(VMI_ONESHOT)); + + BUG_ON(evt->mode != CLOCK_EVT_MODE_ONESHOT); + vmi_timer_ops.set_alarm(VMI_ONESHOT, now + delta, 0); + return 0; +} + +static struct clock_event_device vmi_clockevent = { + .name = "vmi-timer", + .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, + .shift = 22, + .set_mode = vmi_timer_set_mode, + .set_next_event = vmi_timer_next_event, + .rating = 1000, + .irq = 0, +}; + +static irqreturn_t vmi_timer_interrupt(int irq, void *dev_id) +{ + struct clock_event_device *evt = &__get_cpu_var(local_events); + evt->event_handler(evt); + return IRQ_HANDLED; +} + +static struct irqaction vmi_clock_action = { + .name = "vmi-timer", + .handler = vmi_timer_interrupt, + .flags = IRQF_DISABLED | IRQF_NOBALANCING, + .mask = CPU_MASK_ALL, +}; + +static void __devinit vmi_time_init_clockevent(void) +{ + cycle_t cycles_per_msec; + struct clock_event_device *evt; + + int cpu = smp_processor_id(); + evt = &__get_cpu_var(local_events); + + /* Use cycles_per_msec since div_sc params are 32-bits. */ + cycles_per_msec = vmi_timer_ops.get_cycle_frequency(); + (void)do_div(cycles_per_msec, 1000); + + memcpy(evt, &vmi_clockevent, sizeof(*evt)); + /* Must pick .shift such that .mult fits in 32-bits. Choosing + * .shift to be 22 allows 2^(32-22) cycles per nano-seconds + * before overflow. */ + evt->mult = div_sc(cycles_per_msec, NSEC_PER_MSEC, evt->shift); + /* Upper bound is clockevent's use of ulong for cycle deltas. */ + evt->max_delta_ns = clockevent_delta2ns(ULONG_MAX, evt); + evt->min_delta_ns = clockevent_delta2ns(1, evt); + evt->cpumask = cpumask_of_cpu(cpu); + + printk(KERN_WARNING "vmi: registering clock event %s. mult=%lu shift=%u\n", + evt->name, evt->mult, evt->shift); + clockevents_register_device(evt); +} + +void __init vmi_time_init(void) +{ + /* Disable PIT: BIOSes start PIT CH0 with 18.2hz peridic. */ + outb_p(0x3a, PIT_MODE); /* binary, mode 5, LSB/MSB, ch 0 */ + + vmi_time_init_clockevent(); + setup_irq(0, &vmi_clock_action); +} + +#ifdef CONFIG_X86_LOCAL_APIC +void __devinit vmi_time_bsp_init(void) +{ + /* + * On APIC systems, we want local timers to fire on each cpu. We do + * this by programming LVTT to deliver timer events to the IRQ handler + * for IRQ-0, since we can't re-use the APIC local timer handler + * without interfering with that code. + */ + clockevents_notify(CLOCK_EVT_NOTIFY_SUSPEND, NULL); + local_irq_disable(); +#ifdef CONFIG_X86_SMP + /* + * XXX handle_percpu_irq only defined for SMP; we need to switch over + * to using it, since this is a local interrupt, which each CPU must + * handle individually without locking out or dropping simultaneous + * local timers on other CPUs. We also don't want to trigger the + * quirk workaround code for interrupts which gets invoked from + * handle_percpu_irq via eoi, so we use our own IRQ chip. + */ + set_irq_chip_and_handler_name(0, &vmi_chip, handle_percpu_irq, "lvtt"); +#else + set_irq_chip_and_handler_name(0, &vmi_chip, handle_edge_irq, "lvtt"); +#endif + vmi_wiring = VMI_ALARM_WIRED_LVTT; + apic_write(APIC_LVTT, vmi_get_timer_vector()); + local_irq_enable(); + clockevents_notify(CLOCK_EVT_NOTIFY_RESUME, NULL); +} + +void __devinit vmi_time_ap_init(void) +{ + vmi_time_init_clockevent(); + apic_write(APIC_LVTT, vmi_get_timer_vector()); +} +#endif + +/** vmi clocksource */ + +static cycle_t read_real_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_REAL); +} + +static struct clocksource clocksource_vmi = { + .name = "vmi-timer", + .rating = 450, + .read = read_real_cycles, + .mask = CLOCKSOURCE_MASK(64), + .mult = 0, /* to be set */ + .shift = 22, + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +static int __init init_vmi_clocksource(void) +{ + cycle_t cycles_per_msec; + + if (!vmi_timer_ops.get_cycle_frequency) + return 0; + /* Use khz2mult rather than hz2mult since hz arg is only 32-bits. */ + cycles_per_msec = vmi_timer_ops.get_cycle_frequency(); + (void)do_div(cycles_per_msec, 1000); + + /* Note that clocksource.{mult, shift} converts in the opposite direction + * as clockevents. */ + clocksource_vmi.mult = clocksource_khz2mult(cycles_per_msec, + clocksource_vmi.shift); + + printk(KERN_WARNING "vmi: registering clock source khz=%lld\n", cycles_per_msec); + return clocksource_register(&clocksource_vmi); + +} +module_init(init_vmi_clocksource); diff --git a/arch/i386/kernel/vmitime.c b/arch/i386/kernel/vmitime.c deleted file mode 100644 index 9dfb177..0000000 --- a/arch/i386/kernel/vmitime.c +++ /dev/null @@ -1,482 +0,0 @@ -/* - * VMI paravirtual timer support routines. - * - * Copyright (C) 2005, VMware, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Send feedback to dhecht@vmware.com - * - */ - -/* - * Portions of this code from arch/i386/kernel/timers/timer_tsc.c. - * Portions of the CONFIG_NO_IDLE_HZ code from arch/s390/kernel/time.c. - * See comments there for proper credits. - */ - -#include <linux/spinlock.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/jiffies.h> -#include <linux/interrupt.h> -#include <linux/kernel_stat.h> -#include <linux/rcupdate.h> -#include <linux/clocksource.h> - -#include <asm/timer.h> -#include <asm/io.h> -#include <asm/apic.h> -#include <asm/div64.h> -#include <asm/timer.h> -#include <asm/desc.h> - -#include <asm/vmi.h> -#include <asm/vmi_time.h> - -#include <mach_timer.h> -#include <io_ports.h> - -#ifdef CONFIG_X86_LOCAL_APIC -#define VMI_ALARM_WIRING VMI_ALARM_WIRED_LVTT -#else -#define VMI_ALARM_WIRING VMI_ALARM_WIRED_IRQ0 -#endif - -/* Cached VMI operations */ -struct vmi_timer_ops vmi_timer_ops; - -#ifdef CONFIG_NO_IDLE_HZ - -/* /proc/sys/kernel/hz_timer state. */ -int sysctl_hz_timer; - -/* Some stats */ -static DEFINE_PER_CPU(unsigned long, vmi_idle_no_hz_irqs); -static DEFINE_PER_CPU(unsigned long, vmi_idle_no_hz_jiffies); -static DEFINE_PER_CPU(unsigned long, idle_start_jiffies); - -#endif /* CONFIG_NO_IDLE_HZ */ - -/* Number of alarms per second. By default this is CONFIG_VMI_ALARM_HZ. */ -static int alarm_hz = CONFIG_VMI_ALARM_HZ; - -/* Cache of the value get_cycle_frequency / HZ. */ -static signed long long cycles_per_jiffy; - -/* Cache of the value get_cycle_frequency / alarm_hz. */ -static signed long long cycles_per_alarm; - -/* The number of cycles accounted for by the 'jiffies'/'xtime' count. - * Protected by xtime_lock. */ -static unsigned long long real_cycles_accounted_system; - -/* The number of cycles accounted for by update_process_times(), per cpu. */ -static DEFINE_PER_CPU(unsigned long long, process_times_cycles_accounted_cpu); - -/* The number of stolen cycles accounted, per cpu. */ -static DEFINE_PER_CPU(unsigned long long, stolen_cycles_accounted_cpu); - -/* Clock source. */ -static cycle_t read_real_cycles(void) -{ - return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_REAL); -} - -static cycle_t read_available_cycles(void) -{ - return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_AVAILABLE); -} - -#if 0 -static cycle_t read_stolen_cycles(void) -{ - return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_STOLEN); -} -#endif /* 0 */ - -static struct clocksource clocksource_vmi = { - .name = "vmi-timer", - .rating = 450, - .read = read_real_cycles, - .mask = CLOCKSOURCE_MASK(64), - .mult = 0, /* to be set */ - .shift = 22, - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - - -/* Timer interrupt handler. */ -static irqreturn_t vmi_timer_interrupt(int irq, void *dev_id); - -static struct irqaction vmi_timer_irq = { - .handler = vmi_timer_interrupt, - .flags = IRQF_DISABLED, - .mask = CPU_MASK_NONE, - .name = "VMI-alarm", -}; - -/* Alarm rate */ -static int __init vmi_timer_alarm_rate_setup(char* str) -{ - int alarm_rate; - if (get_option(&str, &alarm_rate) == 1 && alarm_rate > 0) { - alarm_hz = alarm_rate; - printk(KERN_WARNING "VMI timer alarm HZ set to %d\n", alarm_hz); - } - return 1; -} -__setup("vmi_timer_alarm_hz=", vmi_timer_alarm_rate_setup); - - -/* Initialization */ -static void vmi_get_wallclock_ts(struct timespec *ts) -{ - unsigned long long wallclock; - wallclock = vmi_timer_ops.get_wallclock(); // nsec units - ts->tv_nsec = do_div(wallclock, 1000000000); - ts->tv_sec = wallclock; -} - -unsigned long vmi_get_wallclock(void) -{ - struct timespec ts; - vmi_get_wallclock_ts(&ts); - return ts.tv_sec; -} - -int vmi_set_wallclock(unsigned long now) -{ - return -1; -} - -unsigned long long vmi_get_sched_cycles(void) -{ - return read_available_cycles(); -} - -unsigned long vmi_cpu_khz(void) -{ - unsigned long long khz; - - khz = vmi_timer_ops.get_cycle_frequency(); - (void)do_div(khz, 1000); - return khz; -} - -void __init vmi_time_init(void) -{ - unsigned long long cycles_per_sec, cycles_per_msec; - unsigned long flags; - - local_irq_save(flags); - setup_irq(0, &vmi_timer_irq); -#ifdef CONFIG_X86_LOCAL_APIC - set_intr_gate(LOCAL_TIMER_VECTOR, apic_vmi_timer_interrupt); -#endif - - real_cycles_accounted_system = read_real_cycles(); - per_cpu(process_times_cycles_accounted_cpu, 0) = read_available_cycles(); - - cycles_per_sec = vmi_timer_ops.get_cycle_frequency(); - cycles_per_jiffy = cycles_per_sec; - (void)do_div(cycles_per_jiffy, HZ); - cycles_per_alarm = cycles_per_sec; - (void)do_div(cycles_per_alarm, alarm_hz); - cycles_per_msec = cycles_per_sec; - (void)do_div(cycles_per_msec, 1000); - - printk(KERN_WARNING "VMI timer cycles/sec = %llu ; cycles/jiffy = %llu ;" - "cycles/alarm = %llu\n", cycles_per_sec, cycles_per_jiffy, - cycles_per_alarm); - - clocksource_vmi.mult = clocksource_khz2mult(cycles_per_msec, - clocksource_vmi.shift); - if (clocksource_register(&clocksource_vmi)) - printk(KERN_WARNING "Error registering VMITIME clocksource."); - - /* Disable PIT. */ - outb_p(0x3a, PIT_MODE); /* binary, mode 5, LSB/MSB, ch 0 */ - - /* schedule the alarm. do this in phase with process_times_cycles_accounted_cpu - * reduce the latency calling update_process_times. */ - vmi_timer_ops.set_alarm( - VMI_ALARM_WIRED_IRQ0 | VMI_ALARM_IS_PERIODIC | VMI_CYCLES_AVAILABLE, - per_cpu(process_times_cycles_accounted_cpu, 0) + cycles_per_alarm, - cycles_per_alarm); - - local_irq_restore(flags); -} - -#ifdef CONFIG_X86_LOCAL_APIC - -void __init vmi_timer_setup_boot_alarm(void) -{ - local_irq_disable(); - - /* Route the interrupt to the correct vector. */ - apic_write_around(APIC_LVTT, LOCAL_TIMER_VECTOR); - - /* Cancel the IRQ0 wired alarm, and setup the LVTT alarm. */ - vmi_timer_ops.cancel_alarm(VMI_CYCLES_AVAILABLE); - vmi_timer_ops.set_alarm( - VMI_ALARM_WIRED_LVTT | VMI_ALARM_IS_PERIODIC | VMI_CYCLES_AVAILABLE, - per_cpu(process_times_cycles_accounted_cpu, 0) + cycles_per_alarm, - cycles_per_alarm); - local_irq_enable(); -} - -/* Initialize the time accounting variables for an AP on an SMP system. - * Also, set the local alarm for the AP. */ -void __devinit vmi_timer_setup_secondary_alarm(void) -{ - int cpu = smp_processor_id(); - - /* Route the interrupt to the correct vector. */ - apic_write_around(APIC_LVTT, LOCAL_TIMER_VECTOR); - - per_cpu(process_times_cycles_accounted_cpu, cpu) = read_available_cycles(); - - vmi_timer_ops.set_alarm( - VMI_ALARM_WIRED_LVTT | VMI_ALARM_IS_PERIODIC | VMI_CYCLES_AVAILABLE, - per_cpu(process_times_cycles_accounted_cpu, cpu) + cycles_per_alarm, - cycles_per_alarm); -} - -#endif - -/* Update system wide (real) time accounting (e.g. jiffies, xtime). */ -static void vmi_account_real_cycles(unsigned long long cur_real_cycles) -{ - long long cycles_not_accounted; - - write_seqlock(&xtime_lock); - - cycles_not_accounted = cur_real_cycles - real_cycles_accounted_system; - while (cycles_not_accounted >= cycles_per_jiffy) { - /* systems wide jiffies. */ - do_timer(1); - - cycles_not_accounted -= cycles_per_jiffy; - real_cycles_accounted_system += cycles_per_jiffy; - } - - write_sequnlock(&xtime_lock); -} - -/* Update per-cpu process times. */ -static void vmi_account_process_times_cycles(struct pt_regs *regs, int cpu, - unsigned long long cur_process_times_cycles) -{ - long long cycles_not_accounted; - cycles_not_accounted = cur_process_times_cycles - - per_cpu(process_times_cycles_accounted_cpu, cpu); - - while (cycles_not_accounted >= cycles_per_jiffy) { - /* Account time to the current process. This includes - * calling into the scheduler to decrement the timeslice - * and possibly reschedule.*/ - update_process_times(user_mode(regs)); - /* XXX handle /proc/profile multiplier. */ - profile_tick(CPU_PROFILING); - - cycles_not_accounted -= cycles_per_jiffy; - per_cpu(process_times_cycles_accounted_cpu, cpu) += cycles_per_jiffy; - } -} - -#ifdef CONFIG_NO_IDLE_HZ -/* Update per-cpu idle times. Used when a no-hz halt is ended. */ -static void vmi_account_no_hz_idle_cycles(int cpu, - unsigned long long cur_process_times_cycles) -{ - long long cycles_not_accounted; - unsigned long no_idle_hz_jiffies = 0; - - cycles_not_accounted = cur_process_times_cycles - - per_cpu(process_times_cycles_accounted_cpu, cpu); - - while (cycles_not_accounted >= cycles_per_jiffy) { - no_idle_hz_jiffies++; - cycles_not_accounted -= cycles_per_jiffy; - per_cpu(process_times_cycles_accounted_cpu, cpu) += cycles_per_jiffy; - } - /* Account time to the idle process. */ - account_steal_time(idle_task(cpu), jiffies_to_cputime(no_idle_hz_jiffies)); -} -#endif - -/* Update per-cpu stolen time. */ -static void vmi_account_stolen_cycles(int cpu, - unsigned long long cur_real_cycles, - unsigned long long cur_avail_cycles) -{ - long long stolen_cycles_not_accounted; - unsigned long stolen_jiffies = 0; - - if (cur_real_cycles < cur_avail_cycles) - return; - - stolen_cycles_not_accounted = cur_real_cycles - cur_avail_cycles - - per_cpu(stolen_cycles_accounted_cpu, cpu); - - while (stolen_cycles_not_accounted >= cycles_per_jiffy) { - stolen_jiffies++; - stolen_cycles_not_accounted -= cycles_per_jiffy; - per_cpu(stolen_cycles_accounted_cpu, cpu) += cycles_per_jiffy; - } - /* HACK: pass NULL to force time onto cpustat->steal. */ - account_steal_time(NULL, jiffies_to_cputime(stolen_jiffies)); -} - -/* Body of either IRQ0 interrupt handler (UP no local-APIC) or - * local-APIC LVTT interrupt handler (UP & local-APIC or SMP). */ -static void vmi_local_timer_interrupt(int cpu) -{ - unsigned long long cur_real_cycles, cur_process_times_cycles; - - cur_real_cycles = read_real_cycles(); - cur_process_times_cycles = read_available_cycles(); - /* Update system wide (real) time state (xtime, jiffies). */ - vmi_account_real_cycles(cur_real_cycles); - /* Update per-cpu process times. */ - vmi_account_process_times_cycles(get_irq_regs(), cpu, cur_process_times_cycles); - /* Update time stolen from this cpu by the hypervisor. */ - vmi_account_stolen_cycles(cpu, cur_real_cycles, cur_process_times_cycles); -} - -#ifdef CONFIG_NO_IDLE_HZ - -/* Must be called only from idle loop, with interrupts disabled. */ -int vmi_stop_hz_timer(void) -{ - /* Note that cpu_set, cpu_clear are (SMP safe) atomic on x86. */ - - unsigned long seq, next; - unsigned long long real_cycles_expiry; - int cpu = smp_processor_id(); - - BUG_ON(!irqs_disabled()); - if (sysctl_hz_timer != 0) - return 0; - - cpu_set(cpu, nohz_cpu_mask); - smp_mb(); - - if (rcu_needs_cpu(cpu) || local_softirq_pending() || - (next = next_timer_interrupt(), - time_before_eq(next, jiffies + HZ/CONFIG_VMI_ALARM_HZ))) { - cpu_clear(cpu, nohz_cpu_mask); - return 0; - } - - /* Convert jiffies to the real cycle counter. */ - do { - seq = read_seqbegin(&xtime_lock); - real_cycles_expiry = real_cycles_accounted_system + - (long)(next - jiffies) * cycles_per_jiffy; - } while (read_seqretry(&xtime_lock, seq)); - - /* This cpu is going idle. Disable the periodic alarm. */ - vmi_timer_ops.cancel_alarm(VMI_CYCLES_AVAILABLE); - per_cpu(idle_start_jiffies, cpu) = jiffies; - /* Set the real time alarm to expire at the next event. */ - vmi_timer_ops.set_alarm( - VMI_ALARM_WIRING | VMI_ALARM_IS_ONESHOT | VMI_CYCLES_REAL, - real_cycles_expiry, 0); - return 1; -} - -static void vmi_reenable_hz_timer(int cpu) -{ - /* For /proc/vmi/info idle_hz stat. */ - per_cpu(vmi_idle_no_hz_jiffies, cpu) += jiffies - per_cpu(idle_start_jiffies, cpu); - per_cpu(vmi_idle_no_hz_irqs, cpu)++; - - /* Don't bother explicitly cancelling the one-shot alarm -- at - * worse we will receive a spurious timer interrupt. */ - vmi_timer_ops.set_alarm( - VMI_ALARM_WIRING | VMI_ALARM_IS_PERIODIC | VMI_CYCLES_AVAILABLE, - per_cpu(process_times_cycles_accounted_cpu, cpu) + cycles_per_alarm, - cycles_per_alarm); - /* Indicate this cpu is no longer nohz idle. */ - cpu_clear(cpu, nohz_cpu_mask); -} - -/* Called from interrupt handlers when (local) HZ timer is disabled. */ -void vmi_account_time_restart_hz_timer(void) -{ - unsigned long long cur_real_cycles, cur_process_times_cycles; - int cpu = smp_processor_id(); - - BUG_ON(!irqs_disabled()); - /* Account the time during which the HZ timer was disabled. */ - cur_real_cycles = read_real_cycles(); - cur_process_times_cycles = read_available_cycles(); - /* Update system wide (real) time state (xtime, jiffies). */ - vmi_account_real_cycles(cur_real_cycles); - /* Update per-cpu idle times. */ - vmi_account_no_hz_idle_cycles(cpu, cur_process_times_cycles); - /* Update time stolen from this cpu by the hypervisor. */ - vmi_account_stolen_cycles(cpu, cur_real_cycles, cur_process_times_cycles); - /* Reenable the hz timer. */ - vmi_reenable_hz_timer(cpu); -} - -#endif /* CONFIG_NO_IDLE_HZ */ - -/* UP (and no local-APIC) VMI-timer alarm interrupt handler. - * Handler for IRQ0. Not used when SMP or X86_LOCAL_APIC after - * APIC setup and setup_boot_vmi_alarm() is called. */ -static irqreturn_t vmi_timer_interrupt(int irq, void *dev_id) -{ - vmi_local_timer_interrupt(smp_processor_id()); - return IRQ_HANDLED; -} - -#ifdef CONFIG_X86_LOCAL_APIC - -/* SMP VMI-timer alarm interrupt handler. Handler for LVTT vector. - * Also used in UP when CONFIG_X86_LOCAL_APIC. - * The wrapper code is from arch/i386/kernel/apic.c#smp_apic_timer_interrupt. */ -void smp_apic_vmi_timer_interrupt(struct pt_regs *regs) -{ - struct pt_regs *old_regs = set_irq_regs(regs); - int cpu = smp_processor_id(); - - /* - * the NMI deadlock-detector uses this. - */ - per_cpu(irq_stat,cpu).apic_timer_irqs++; - - /* - * NOTE! We'd better ACK the irq immediately, - * because timer handling can be slow. - */ - ack_APIC_irq(); - - /* - * update_process_times() expects us to have done irq_enter(). - * Besides, if we don't timer interrupts ignore the global - * interrupt lock, which is the WrongThing (tm) to do. - */ - irq_enter(); - vmi_local_timer_interrupt(cpu); - irq_exit(); - set_irq_regs(old_regs); -} - -#endif /* CONFIG_X86_LOCAL_APIC */ diff --git a/arch/i386/kernel/vmlinux.lds.S b/arch/i386/kernel/vmlinux.lds.S index 6f38f81..23e8614 100644 --- a/arch/i386/kernel/vmlinux.lds.S +++ b/arch/i386/kernel/vmlinux.lds.S @@ -26,12 +26,11 @@ OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") OUTPUT_ARCH(i386) ENTRY(phys_startup_32) jiffies = jiffies_64; -_proxy_pda = 1; PHDRS { text PT_LOAD FLAGS(5); /* R_E */ data PT_LOAD FLAGS(7); /* RWE */ - note PT_NOTE FLAGS(4); /* R__ */ + note PT_NOTE FLAGS(0); /* ___ */ } SECTIONS { @@ -61,8 +60,6 @@ SECTIONS __stop___ex_table = .; } - RODATA - BUG_TABLE . = ALIGN(4); @@ -72,6 +69,8 @@ SECTIONS __tracedata_end = .; } + RODATA + /* writeable */ . = ALIGN(4096); .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */ @@ -117,22 +116,11 @@ SECTIONS /* might get freed after init */ . = ALIGN(4096); - .smp_altinstructions : AT(ADDR(.smp_altinstructions) - LOAD_OFFSET) { - __smp_alt_begin = .; - __smp_alt_instructions = .; - *(.smp_altinstructions) - __smp_alt_instructions_end = .; - } - . = ALIGN(4); .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { __smp_locks = .; *(.smp_locks) __smp_locks_end = .; } - .smp_altinstr_replacement : AT(ADDR(.smp_altinstr_replacement) - LOAD_OFFSET) { - *(.smp_altinstr_replacement) - __smp_alt_end = .; - } /* will be freed after init * Following ALIGN() is required to make sure no other data falls on the * same page where __smp_alt_end is pointing as that page might be freed @@ -178,9 +166,9 @@ SECTIONS } . = ALIGN(4); .parainstructions : AT(ADDR(.parainstructions) - LOAD_OFFSET) { - __start_parainstructions = .; + __parainstructions = .; *(.parainstructions) - __stop_parainstructions = .; + __parainstructions_end = .; } /* .exit.text is discard at runtime, not link time, to deal with references from .altinstructions and .eh_frame */ @@ -194,7 +182,7 @@ SECTIONS __initramfs_end = .; } #endif - . = ALIGN(L1_CACHE_BYTES); + . = ALIGN(4096); .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { __per_cpu_start = .; *(.data.percpu) diff --git a/arch/i386/kernel/vsyscall.lds.S b/arch/i386/kernel/vsyscall.lds.S index f66cd11..4a8b0ed 100644 --- a/arch/i386/kernel/vsyscall.lds.S +++ b/arch/i386/kernel/vsyscall.lds.S @@ -7,7 +7,7 @@ SECTIONS { - . = VDSO_PRELINK + SIZEOF_HEADERS; + . = VDSO_PRELINK_asm + SIZEOF_HEADERS; .hash : { *(.hash) } :text .gnu.hash : { *(.gnu.hash) } @@ -21,7 +21,7 @@ SECTIONS For the layouts to match, we need to skip more than enough space for the dynamic symbol table et al. If this amount is insufficient, ld -shared will barf. Just increase it here. */ - . = VDSO_PRELINK + 0x400; + . = VDSO_PRELINK_asm + 0x400; .text : { *(.text) } :text =0x90909090 .note : { *(.note.*) } :text :note diff --git a/arch/i386/lib/bitops.c b/arch/i386/lib/bitops.c index 97db385..afd0045 100644 --- a/arch/i386/lib/bitops.c +++ b/arch/i386/lib/bitops.c @@ -43,7 +43,7 @@ EXPORT_SYMBOL(find_next_bit); */ int find_next_zero_bit(const unsigned long *addr, int size, int offset) { - unsigned long * p = ((unsigned long *) addr) + (offset >> 5); + const unsigned long *p = addr + (offset >> 5); int set = 0, bit = offset & 31, res; if (bit) { @@ -64,7 +64,7 @@ int find_next_zero_bit(const unsigned long *addr, int size, int offset) /* * No zero yet, search remaining full bytes for a zero */ - res = find_first_zero_bit (p, size - 32 * (p - (unsigned long *) addr)); + res = find_first_zero_bit(p, size - 32 * (p - addr)); return (offset + set + res); } EXPORT_SYMBOL(find_next_zero_bit); diff --git a/arch/i386/lib/checksum.S b/arch/i386/lib/checksum.S index 75ffd02..adbccd0 100644 --- a/arch/i386/lib/checksum.S +++ b/arch/i386/lib/checksum.S @@ -25,6 +25,8 @@ * 2 of the License, or (at your option) any later version. */ +#include <linux/linkage.h> +#include <asm/dwarf2.h> #include <asm/errno.h> /* @@ -36,8 +38,6 @@ unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum) */ .text -.align 4 -.globl csum_partial #ifndef CONFIG_X86_USE_PPRO_CHECKSUM @@ -48,9 +48,14 @@ unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum) * Fortunately, it is easy to convert 2-byte alignment to 4-byte * alignment for the unrolled loop. */ -csum_partial: +ENTRY(csum_partial) + CFI_STARTPROC pushl %esi + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET esi, 0 pushl %ebx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ebx, 0 movl 20(%esp),%eax # Function arg: unsigned int sum movl 16(%esp),%ecx # Function arg: int len movl 12(%esp),%esi # Function arg: unsigned char *buff @@ -128,16 +133,27 @@ csum_partial: roll $8, %eax 8: popl %ebx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ebx popl %esi + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE esi ret + CFI_ENDPROC +ENDPROC(csum_partial) #else /* Version for PentiumII/PPro */ -csum_partial: +ENTRY(csum_partial) + CFI_STARTPROC pushl %esi + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET esi, 0 pushl %ebx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ebx, 0 movl 20(%esp),%eax # Function arg: unsigned int sum movl 16(%esp),%ecx # Function arg: int len movl 12(%esp),%esi # Function arg: const unsigned char *buf @@ -245,8 +261,14 @@ csum_partial: roll $8, %eax 90: popl %ebx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ebx popl %esi + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE esi ret + CFI_ENDPROC +ENDPROC(csum_partial) #endif @@ -278,19 +300,24 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst, .long 9999b, 6002f ; \ .previous -.align 4 -.globl csum_partial_copy_generic - #ifndef CONFIG_X86_USE_PPRO_CHECKSUM #define ARGBASE 16 #define FP 12 -csum_partial_copy_generic: +ENTRY(csum_partial_copy_generic) + CFI_STARTPROC subl $4,%esp + CFI_ADJUST_CFA_OFFSET 4 pushl %edi + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edi, 0 pushl %esi + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET esi, 0 pushl %ebx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ebx, 0 movl ARGBASE+16(%esp),%eax # sum movl ARGBASE+12(%esp),%ecx # len movl ARGBASE+4(%esp),%esi # src @@ -400,10 +427,19 @@ DST( movb %cl, (%edi) ) .previous popl %ebx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ebx popl %esi + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE esi popl %edi + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE edi popl %ecx # equivalent to addl $4,%esp + CFI_ADJUST_CFA_OFFSET -4 ret + CFI_ENDPROC +ENDPROC(csum_partial_copy_generic) #else @@ -421,10 +457,17 @@ DST( movb %cl, (%edi) ) #define ARGBASE 12 -csum_partial_copy_generic: +ENTRY(csum_partial_copy_generic) + CFI_STARTPROC pushl %ebx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ebx, 0 pushl %edi + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edi, 0 pushl %esi + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET esi, 0 movl ARGBASE+4(%esp),%esi #src movl ARGBASE+8(%esp),%edi #dst movl ARGBASE+12(%esp),%ecx #len @@ -485,9 +528,17 @@ DST( movb %dl, (%edi) ) .previous popl %esi + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE esi popl %edi + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE edi popl %ebx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ebx ret + CFI_ENDPROC +ENDPROC(csum_partial_copy_generic) #undef ROUND #undef ROUND1 diff --git a/arch/i386/lib/getuser.S b/arch/i386/lib/getuser.S index 62d7f17..6d84b53 100644 --- a/arch/i386/lib/getuser.S +++ b/arch/i386/lib/getuser.S @@ -8,6 +8,8 @@ * return an error value in addition to the "real" * return value. */ +#include <linux/linkage.h> +#include <asm/dwarf2.h> #include <asm/thread_info.h> @@ -24,19 +26,19 @@ */ .text -.align 4 -.globl __get_user_1 -__get_user_1: +ENTRY(__get_user_1) + CFI_STARTPROC GET_THREAD_INFO(%edx) cmpl TI_addr_limit(%edx),%eax jae bad_get_user 1: movzbl (%eax),%edx xorl %eax,%eax ret + CFI_ENDPROC +ENDPROC(__get_user_1) -.align 4 -.globl __get_user_2 -__get_user_2: +ENTRY(__get_user_2) + CFI_STARTPROC addl $1,%eax jc bad_get_user GET_THREAD_INFO(%edx) @@ -45,10 +47,11 @@ __get_user_2: 2: movzwl -1(%eax),%edx xorl %eax,%eax ret + CFI_ENDPROC +ENDPROC(__get_user_2) -.align 4 -.globl __get_user_4 -__get_user_4: +ENTRY(__get_user_4) + CFI_STARTPROC addl $3,%eax jc bad_get_user GET_THREAD_INFO(%edx) @@ -57,11 +60,16 @@ __get_user_4: 3: movl -3(%eax),%edx xorl %eax,%eax ret + CFI_ENDPROC +ENDPROC(__get_user_4) bad_get_user: + CFI_STARTPROC xorl %edx,%edx movl $-14,%eax ret + CFI_ENDPROC +END(bad_get_user) .section __ex_table,"a" .long 1b,bad_get_user diff --git a/arch/i386/lib/putuser.S b/arch/i386/lib/putuser.S index a32d9f5..f58fba1 100644 --- a/arch/i386/lib/putuser.S +++ b/arch/i386/lib/putuser.S @@ -8,6 +8,8 @@ * return an error value in addition to the "real" * return value. */ +#include <linux/linkage.h> +#include <asm/dwarf2.h> #include <asm/thread_info.h> @@ -23,23 +25,28 @@ * as they get called from within inline assembly. */ -#define ENTER pushl %ebx ; GET_THREAD_INFO(%ebx) -#define EXIT popl %ebx ; ret +#define ENTER CFI_STARTPROC ; \ + pushl %ebx ; \ + CFI_ADJUST_CFA_OFFSET 4 ; \ + CFI_REL_OFFSET ebx, 0 ; \ + GET_THREAD_INFO(%ebx) +#define EXIT popl %ebx ; \ + CFI_ADJUST_CFA_OFFSET -4 ; \ + CFI_RESTORE ebx ; \ + ret ; \ + CFI_ENDPROC .text -.align 4 -.globl __put_user_1 -__put_user_1: +ENTRY(__put_user_1) ENTER cmpl TI_addr_limit(%ebx),%ecx jae bad_put_user 1: movb %al,(%ecx) xorl %eax,%eax EXIT +ENDPROC(__put_user_1) -.align 4 -.globl __put_user_2 -__put_user_2: +ENTRY(__put_user_2) ENTER movl TI_addr_limit(%ebx),%ebx subl $1,%ebx @@ -48,10 +55,9 @@ __put_user_2: 2: movw %ax,(%ecx) xorl %eax,%eax EXIT +ENDPROC(__put_user_2) -.align 4 -.globl __put_user_4 -__put_user_4: +ENTRY(__put_user_4) ENTER movl TI_addr_limit(%ebx),%ebx subl $3,%ebx @@ -60,10 +66,9 @@ __put_user_4: 3: movl %eax,(%ecx) xorl %eax,%eax EXIT +ENDPROC(__put_user_4) -.align 4 -.globl __put_user_8 -__put_user_8: +ENTRY(__put_user_8) ENTER movl TI_addr_limit(%ebx),%ebx subl $7,%ebx @@ -73,10 +78,16 @@ __put_user_8: 5: movl %edx,4(%ecx) xorl %eax,%eax EXIT +ENDPROC(__put_user_8) bad_put_user: + CFI_STARTPROC simple + CFI_DEF_CFA esp, 2*4 + CFI_OFFSET eip, -1*4 + CFI_OFFSET ebx, -2*4 movl $-14,%eax EXIT +END(bad_put_user) .section __ex_table,"a" .long 1b,bad_put_user diff --git a/arch/i386/lib/usercopy.c b/arch/i386/lib/usercopy.c index 086b372..9f38b12 100644 --- a/arch/i386/lib/usercopy.c +++ b/arch/i386/lib/usercopy.c @@ -716,7 +716,6 @@ do { \ unsigned long __copy_to_user_ll(void __user *to, const void *from, unsigned long n) { - BUG_ON((long) n < 0); #ifndef CONFIG_X86_WP_WORKS_OK if (unlikely(boot_cpu_data.wp_works_ok == 0) && ((unsigned long )to) < TASK_SIZE) { @@ -785,7 +784,6 @@ EXPORT_SYMBOL(__copy_to_user_ll); unsigned long __copy_from_user_ll(void *to, const void __user *from, unsigned long n) { - BUG_ON((long)n < 0); if (movsl_is_ok(to, from, n)) __copy_user_zeroing(to, from, n); else @@ -797,7 +795,6 @@ EXPORT_SYMBOL(__copy_from_user_ll); unsigned long __copy_from_user_ll_nozero(void *to, const void __user *from, unsigned long n) { - BUG_ON((long)n < 0); if (movsl_is_ok(to, from, n)) __copy_user(to, from, n); else @@ -810,7 +807,6 @@ EXPORT_SYMBOL(__copy_from_user_ll_nozero); unsigned long __copy_from_user_ll_nocache(void *to, const void __user *from, unsigned long n) { - BUG_ON((long)n < 0); #ifdef CONFIG_X86_INTEL_USERCOPY if ( n > 64 && cpu_has_xmm2) n = __copy_user_zeroing_intel_nocache(to, from, n); @@ -825,7 +821,6 @@ unsigned long __copy_from_user_ll_nocache(void *to, const void __user *from, unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *from, unsigned long n) { - BUG_ON((long)n < 0); #ifdef CONFIG_X86_INTEL_USERCOPY if ( n > 64 && cpu_has_xmm2) n = __copy_user_intel_nocache(to, from, n); @@ -853,7 +848,6 @@ unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *fr unsigned long copy_to_user(void __user *to, const void *from, unsigned long n) { - BUG_ON((long) n < 0); if (access_ok(VERIFY_WRITE, to, n)) n = __copy_to_user(to, from, n); return n; @@ -879,7 +873,6 @@ EXPORT_SYMBOL(copy_to_user); unsigned long copy_from_user(void *to, const void __user *from, unsigned long n) { - BUG_ON((long) n < 0); if (access_ok(VERIFY_READ, from, n)) n = __copy_from_user(to, from, n); else diff --git a/arch/i386/mach-generic/bigsmp.c b/arch/i386/mach-generic/bigsmp.c index 8a210fa..e932d34 100644 --- a/arch/i386/mach-generic/bigsmp.c +++ b/arch/i386/mach-generic/bigsmp.c @@ -45,7 +45,7 @@ static struct dmi_system_id __initdata bigsmp_dmi_table[] = { }; -static int probe_bigsmp(void) +static int __init probe_bigsmp(void) { if (def_to_bigsmp) dmi_bigsmp = 1; diff --git a/arch/i386/mach-generic/es7000.c b/arch/i386/mach-generic/es7000.c index b8963a5..b47f951 100644 --- a/arch/i386/mach-generic/es7000.c +++ b/arch/i386/mach-generic/es7000.c @@ -25,4 +25,45 @@ static int probe_es7000(void) return 0; } +extern void es7000_sw_apic(void); +static void __init enable_apic_mode(void) +{ + es7000_sw_apic(); + return; +} + +static __init int mps_oem_check(struct mp_config_table *mpc, char *oem, + char *productid) +{ + if (mpc->mpc_oemptr) { + struct mp_config_oemtable *oem_table = + (struct mp_config_oemtable *)mpc->mpc_oemptr; + if (!strncmp(oem, "UNISYS", 6)) + return parse_unisys_oem((char *)oem_table); + } + return 0; +} + +#ifdef CONFIG_ACPI +/* Hook from generic ACPI tables.c */ +static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id) +{ + unsigned long oem_addr; + if (!find_unisys_acpi_oem_table(&oem_addr)) { + if (es7000_check_dsdt()) + return parse_unisys_oem((char *)oem_addr); + else { + setup_unisys(); + return 1; + } + } + return 0; +} +#else +static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id) +{ + return 0; +} +#endif + struct genapic apic_es7000 = APIC_INIT("es7000", probe_es7000); diff --git a/arch/i386/mach-voyager/setup.c b/arch/i386/mach-voyager/setup.c index cfa16c1..447bb10 100644 --- a/arch/i386/mach-voyager/setup.c +++ b/arch/i386/mach-voyager/setup.c @@ -40,10 +40,16 @@ void __init trap_init_hook(void) { } -static struct irqaction irq0 = { timer_interrupt, IRQF_DISABLED, CPU_MASK_NONE, "timer", NULL, NULL}; +static struct irqaction irq0 = { + .handler = timer_interrupt, + .flags = IRQF_DISABLED | IRQF_NOBALANCING, + .mask = CPU_MASK_NONE, + .name = "timer" +}; void __init time_init_hook(void) { + irq0.mask = cpumask_of_cpu(safe_smp_processor_id()); setup_irq(0, &irq0); } diff --git a/arch/i386/mach-voyager/voyager_cat.c b/arch/i386/mach-voyager/voyager_cat.c index 943a947..26a2d4c 100644 --- a/arch/i386/mach-voyager/voyager_cat.c +++ b/arch/i386/mach-voyager/voyager_cat.c @@ -1111,7 +1111,7 @@ voyager_cat_do_common_interrupt(void) printk(KERN_ERR "Voyager front panel switch turned off\n"); voyager_status.switch_off = 1; voyager_status.request_from_kernel = 1; - up(&kvoyagerd_sem); + wake_up_process(voyager_thread); } /* Tell the hardware we're taking care of the * shutdown, otherwise it will power the box off @@ -1157,7 +1157,7 @@ voyager_cat_do_common_interrupt(void) outb(VOYAGER_CAT_END, CAT_CMD); voyager_status.power_fail = 1; voyager_status.request_from_kernel = 1; - up(&kvoyagerd_sem); + wake_up_process(voyager_thread); } diff --git a/arch/i386/mach-voyager/voyager_smp.c b/arch/i386/mach-voyager/voyager_smp.c index 74aeedf..1a5e448 100644 --- a/arch/i386/mach-voyager/voyager_smp.c +++ b/arch/i386/mach-voyager/voyager_smp.c @@ -536,15 +536,6 @@ do_boot_cpu(__u8 cpu) & ~( voyager_extended_vic_processors & voyager_allowed_boot_processors); - /* For the 486, we can't use the 4Mb page table trick, so - * must map a region of memory */ -#ifdef CONFIG_M486 - int i; - unsigned long *page_table_copies = (unsigned long *) - __get_free_page(GFP_KERNEL); -#endif - pgd_t orig_swapper_pg_dir0; - /* This is an area in head.S which was used to set up the * initial kernel stack. We need to alter this to give the * booting CPU a new stack (taken from its idle process) */ @@ -573,6 +564,8 @@ do_boot_cpu(__u8 cpu) hijack_source.idt.Segment = (start_phys_address >> 4) & 0xFFFF; cpucount++; + alternatives_smp_switch(1); + idle = fork_idle(cpu); if(IS_ERR(idle)) panic("failed fork for CPU%d", cpu); @@ -580,39 +573,18 @@ do_boot_cpu(__u8 cpu) /* init_tasks (in sched.c) is indexed logically */ stack_start.esp = (void *) idle->thread.esp; - /* Pre-allocate and initialize the CPU's GDT and PDA so it - doesn't have to do any memory allocation during the - delicate CPU-bringup phase. */ - if (!init_gdt(cpu, idle)) { - printk(KERN_INFO "Couldn't allocate GDT/PDA for CPU %d\n", cpu); - cpucount--; - return; - } - + init_gdt(cpu, idle); irq_ctx_init(cpu); /* Note: Don't modify initial ss override */ VDEBUG(("VOYAGER SMP: Booting CPU%d at 0x%lx[%x:%x], stack %p\n", cpu, (unsigned long)hijack_source.val, hijack_source.idt.Segment, hijack_source.idt.Offset, stack_start.esp)); - /* set the original swapper_pg_dir[0] to map 0 to 4Mb transparently - * (so that the booting CPU can find start_32 */ - orig_swapper_pg_dir0 = swapper_pg_dir[0]; -#ifdef CONFIG_M486 - if(page_table_copies == NULL) - panic("No free memory for 486 page tables\n"); - for(i = 0; i < PAGE_SIZE/sizeof(unsigned long); i++) - page_table_copies[i] = (i * PAGE_SIZE) - | _PAGE_RW | _PAGE_USER | _PAGE_PRESENT; - - ((unsigned long *)swapper_pg_dir)[0] = - ((virt_to_phys(page_table_copies)) & PAGE_MASK) - | _PAGE_RW | _PAGE_USER | _PAGE_PRESENT; -#else - ((unsigned long *)swapper_pg_dir)[0] = - (virt_to_phys(pg0) & PAGE_MASK) - | _PAGE_RW | _PAGE_USER | _PAGE_PRESENT; -#endif + + /* init lowmem identity mapping */ + clone_pgd_range(swapper_pg_dir, swapper_pg_dir + USER_PGD_PTRS, + min_t(unsigned long, KERNEL_PGD_PTRS, USER_PGD_PTRS)); + flush_tlb_all(); if(quad_boot) { printk("CPU %d: non extended Quad boot\n", cpu); @@ -655,11 +627,7 @@ do_boot_cpu(__u8 cpu) udelay(100); } /* reset the page table */ - swapper_pg_dir[0] = orig_swapper_pg_dir0; - local_flush_tlb(); -#ifdef CONFIG_M486 - free_page((unsigned long)page_table_copies); -#endif + zap_low_mappings(); if (cpu_booted_map) { VDEBUG(("CPU%d: Booted successfully, back in CPU %d\n", @@ -773,12 +741,6 @@ initialize_secondary(void) #endif /* - * switch to the per CPU GDT we already set up - * in do_boot_cpu() - */ - cpu_set_gdt(current_thread_info()->cpu); - - /* * We don't actually need to load the full TSS, * basically just the stack pointer and the eip. */ @@ -1082,20 +1044,11 @@ smp_call_function_interrupt(void) } } -/* Call this function on all CPUs using the function_interrupt above - <func> The function to run. This must be fast and non-blocking. - <info> An arbitrary pointer to pass to the function. - <retry> If true, keep retrying until ready. - <wait> If true, wait until function has completed on other CPUs. - [RETURNS] 0 on success, else a negative status code. Does not return until - remote CPUs are nearly ready to execute <<func>> or are or have executed. -*/ -int -smp_call_function (void (*func) (void *info), void *info, int retry, - int wait) +static int +__smp_call_function_mask (void (*func) (void *info), void *info, int retry, + int wait, __u32 mask) { struct call_data_struct data; - __u32 mask = cpus_addr(cpu_online_map)[0]; mask &= ~(1<<smp_processor_id()); @@ -1116,7 +1069,7 @@ smp_call_function (void (*func) (void *info), void *info, int retry, call_data = &data; wmb(); /* Send a message to all other CPUs and wait for them to respond */ - send_CPI_allbutself(VIC_CALL_FUNCTION_CPI); + send_CPI(mask, VIC_CALL_FUNCTION_CPI); /* Wait for response */ while (data.started) @@ -1130,8 +1083,48 @@ smp_call_function (void (*func) (void *info), void *info, int retry, return 0; } + +/* Call this function on all CPUs using the function_interrupt above + <func> The function to run. This must be fast and non-blocking. + <info> An arbitrary pointer to pass to the function. + <retry> If true, keep retrying until ready. + <wait> If true, wait until function has completed on other CPUs. + [RETURNS] 0 on success, else a negative status code. Does not return until + remote CPUs are nearly ready to execute <<func>> or are or have executed. +*/ +int +smp_call_function(void (*func) (void *info), void *info, int retry, + int wait) +{ + __u32 mask = cpus_addr(cpu_online_map)[0]; + + return __smp_call_function_mask(func, info, retry, wait, mask); +} EXPORT_SYMBOL(smp_call_function); +/* + * smp_call_function_single - Run a function on another CPU + * @func: The function to run. This must be fast and non-blocking. + * @info: An arbitrary pointer to pass to the function. + * @nonatomic: Currently unused. + * @wait: If true, wait until function has completed on other CPUs. + * + * Retrurns 0 on success, else a negative status code. + * + * Does not return until the remote CPU is nearly ready to execute <func> + * or is or has executed. + */ + +int +smp_call_function_single(int cpu, void (*func) (void *info), void *info, + int nonatomic, int wait) +{ + __u32 mask = 1 << cpu; + + return __smp_call_function_mask(func, info, nonatomic, wait, mask); +} +EXPORT_SYMBOL(smp_call_function_single); + /* Sorry about the name. In an APIC based system, the APICs * themselves are programmed to send a timer interrupt. This is used * by linux to reschedule the processor. Voyager doesn't have this, diff --git a/arch/i386/mach-voyager/voyager_thread.c b/arch/i386/mach-voyager/voyager_thread.c index f398873..fdc1d92 100644 --- a/arch/i386/mach-voyager/voyager_thread.c +++ b/arch/i386/mach-voyager/voyager_thread.c @@ -24,33 +24,16 @@ #include <linux/kmod.h> #include <linux/completion.h> #include <linux/sched.h> +#include <linux/kthread.h> #include <asm/desc.h> #include <asm/voyager.h> #include <asm/vic.h> #include <asm/mtrr.h> #include <asm/msr.h> -#define THREAD_NAME "kvoyagerd" -/* external variables */ -int kvoyagerd_running = 0; -DECLARE_MUTEX_LOCKED(kvoyagerd_sem); - -static int thread(void *); - -static __u8 set_timeout = 0; - -/* Start the machine monitor thread. Return 1 if OK, 0 if fail */ -static int __init -voyager_thread_start(void) -{ - if(kernel_thread(thread, NULL, CLONE_KERNEL) < 0) { - /* This is serious, but not fatal */ - printk(KERN_ERR "Voyager: Failed to create system monitor thread!!!\n"); - return 1; - } - return 0; -} +struct task_struct *voyager_thread; +static __u8 set_timeout; static int execute(const char *string) @@ -110,31 +93,15 @@ check_continuing_condition(void) } } -static void -wakeup(unsigned long unused) -{ - up(&kvoyagerd_sem); -} - static int thread(void *unused) { - struct timer_list wakeup_timer; - - kvoyagerd_running = 1; - - daemonize(THREAD_NAME); - - set_timeout = 0; - - init_timer(&wakeup_timer); - - sigfillset(¤t->blocked); - printk(KERN_NOTICE "Voyager starting monitor thread\n"); - for(;;) { - down_interruptible(&kvoyagerd_sem); + for (;;) { + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(set_timeout ? HZ : MAX_SCHEDULE_TIMEOUT); + VDEBUG(("Voyager Daemon awoken\n")); if(voyager_status.request_from_kernel == 0) { /* probably awoken from timeout */ @@ -143,20 +110,26 @@ thread(void *unused) check_from_kernel(); voyager_status.request_from_kernel = 0; } - if(set_timeout) { - del_timer(&wakeup_timer); - wakeup_timer.expires = HZ + jiffies; - wakeup_timer.function = wakeup; - add_timer(&wakeup_timer); - } } } +static int __init +voyager_thread_start(void) +{ + voyager_thread = kthread_run(thread, NULL, "kvoyagerd"); + if (IS_ERR(voyager_thread)) { + printk(KERN_ERR "Voyager: Failed to create system monitor thread.\n"); + return PTR_ERR(voyager_thread); + } + return 0; +} + + static void __exit voyager_thread_stop(void) { - /* FIXME: do nothing at the moment */ + kthread_stop(voyager_thread); } module_init(voyager_thread_start); -//module_exit(voyager_thread_stop); +module_exit(voyager_thread_stop); diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c index b8c4e25..f534c29 100644 --- a/arch/i386/mm/fault.c +++ b/arch/i386/mm/fault.c @@ -20,6 +20,7 @@ #include <linux/tty.h> #include <linux/vt_kern.h> /* For unblank_screen() */ #include <linux/highmem.h> +#include <linux/bootmem.h> /* for max_low_pfn */ #include <linux/module.h> #include <linux/kprobes.h> #include <linux/uaccess.h> @@ -301,7 +302,6 @@ fastcall void __kprobes do_page_fault(struct pt_regs *regs, struct mm_struct *mm; struct vm_area_struct * vma; unsigned long address; - unsigned long page; int write, si_code; /* get the address */ @@ -510,7 +510,9 @@ no_context: bust_spinlocks(1); if (oops_may_print()) { - #ifdef CONFIG_X86_PAE + __typeof__(pte_val(__pte(0))) page; + +#ifdef CONFIG_X86_PAE if (error_code & 16) { pte_t *pte = lookup_address(address); @@ -519,7 +521,7 @@ no_context: "NX-protected page - exploit attempt? " "(uid: %d)\n", current->uid); } - #endif +#endif if (address < PAGE_SIZE) printk(KERN_ALERT "BUG: unable to handle kernel NULL " "pointer dereference"); @@ -529,25 +531,38 @@ no_context: printk(" at virtual address %08lx\n",address); printk(KERN_ALERT " printing eip:\n"); printk("%08lx\n", regs->eip); - } - page = read_cr3(); - page = ((unsigned long *) __va(page))[address >> 22]; - if (oops_may_print()) + + page = read_cr3(); + page = ((__typeof__(page) *) __va(page))[address >> PGDIR_SHIFT]; +#ifdef CONFIG_X86_PAE + printk(KERN_ALERT "*pdpt = %016Lx\n", page); + if ((page >> PAGE_SHIFT) < max_low_pfn + && page & _PAGE_PRESENT) { + page &= PAGE_MASK; + page = ((__typeof__(page) *) __va(page))[(address >> PMD_SHIFT) + & (PTRS_PER_PMD - 1)]; + printk(KERN_ALERT "*pde = %016Lx\n", page); + page &= ~_PAGE_NX; + } +#else printk(KERN_ALERT "*pde = %08lx\n", page); - /* - * We must not directly access the pte in the highpte - * case, the page table might be allocated in highmem. - * And lets rather not kmap-atomic the pte, just in case - * it's allocated already. - */ -#ifndef CONFIG_HIGHPTE - if ((page & 1) && oops_may_print()) { - page &= PAGE_MASK; - address &= 0x003ff000; - page = ((unsigned long *) __va(page))[address >> PAGE_SHIFT]; - printk(KERN_ALERT "*pte = %08lx\n", page); - } #endif + + /* + * We must not directly access the pte in the highpte + * case if the page table is located in highmem. + * And let's rather not kmap-atomic the pte, just in case + * it's allocated already. + */ + if ((page >> PAGE_SHIFT) < max_low_pfn + && (page & _PAGE_PRESENT)) { + page &= PAGE_MASK; + page = ((__typeof__(page) *) __va(page))[(address >> PAGE_SHIFT) + & (PTRS_PER_PTE - 1)]; + printk(KERN_ALERT "*pte = %0*Lx\n", sizeof(page)*2, (u64)page); + } + } + tsk->thread.cr2 = address; tsk->thread.trap_no = 14; tsk->thread.error_code = error_code; @@ -588,7 +603,6 @@ do_sigbus: force_sig_info_fault(SIGBUS, BUS_ADRERR, address, tsk); } -#ifndef CONFIG_X86_PAE void vmalloc_sync_all(void) { /* @@ -601,6 +615,9 @@ void vmalloc_sync_all(void) static unsigned long start = TASK_SIZE; unsigned long address; + if (SHARED_KERNEL_PMD) + return; + BUILD_BUG_ON(TASK_SIZE & ~PGDIR_MASK); for (address = start; address >= TASK_SIZE; address += PGDIR_SIZE) { if (!test_bit(pgd_index(address), insync)) { @@ -623,4 +640,3 @@ void vmalloc_sync_all(void) start = address + PGDIR_SIZE; } } -#endif diff --git a/arch/i386/mm/highmem.c b/arch/i386/mm/highmem.c index ac70d09..ad8d86c 100644 --- a/arch/i386/mm/highmem.c +++ b/arch/i386/mm/highmem.c @@ -26,7 +26,7 @@ void kunmap(struct page *page) * However when holding an atomic kmap is is not legal to sleep, so atomic * kmaps are appropriate for short, tight code paths only. */ -void *kmap_atomic(struct page *page, enum km_type type) +void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot) { enum fixed_addresses idx; unsigned long vaddr; @@ -41,12 +41,17 @@ void *kmap_atomic(struct page *page, enum km_type type) return page_address(page); vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); - set_pte(kmap_pte-idx, mk_pte(page, kmap_prot)); + set_pte(kmap_pte-idx, mk_pte(page, prot)); arch_flush_lazy_mmu_mode(); return (void*) vaddr; } +void *kmap_atomic(struct page *page, enum km_type type) +{ + return kmap_atomic_prot(page, type, kmap_prot); +} + void kunmap_atomic(void *kvaddr, enum km_type type) { unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK; @@ -67,6 +72,7 @@ void kunmap_atomic(void *kvaddr, enum km_type type) #endif } + arch_flush_lazy_mmu_mode(); pagefault_enable(); } diff --git a/arch/i386/mm/hugetlbpage.c b/arch/i386/mm/hugetlbpage.c index 34728e4..6272a4f 100644 --- a/arch/i386/mm/hugetlbpage.c +++ b/arch/i386/mm/hugetlbpage.c @@ -367,6 +367,12 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, if (len > TASK_SIZE) return -ENOMEM; + if (flags & MAP_FIXED) { + if (prepare_hugepage_range(addr, len, pgoff)) + return -EINVAL; + return addr; + } + if (addr) { addr = ALIGN(addr, HPAGE_SIZE); vma = find_vma(mm, addr); diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c index ae43688..1a7197e 100644 --- a/arch/i386/mm/init.c +++ b/arch/i386/mm/init.c @@ -22,6 +22,7 @@ #include <linux/init.h> #include <linux/highmem.h> #include <linux/pagemap.h> +#include <linux/pfn.h> #include <linux/poison.h> #include <linux/bootmem.h> #include <linux/slab.h> @@ -42,6 +43,7 @@ #include <asm/tlb.h> #include <asm/tlbflush.h> #include <asm/sections.h> +#include <asm/paravirt.h> unsigned int __VMALLOC_RESERVE = 128 << 20; @@ -61,17 +63,18 @@ static pmd_t * __init one_md_table_init(pgd_t *pgd) pmd_t *pmd_table; #ifdef CONFIG_X86_PAE - pmd_table = (pmd_t *) alloc_bootmem_low_pages(PAGE_SIZE); - paravirt_alloc_pd(__pa(pmd_table) >> PAGE_SHIFT); - set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT)); - pud = pud_offset(pgd, 0); - if (pmd_table != pmd_offset(pud, 0)) - BUG(); -#else + if (!(pgd_val(*pgd) & _PAGE_PRESENT)) { + pmd_table = (pmd_t *) alloc_bootmem_low_pages(PAGE_SIZE); + + paravirt_alloc_pd(__pa(pmd_table) >> PAGE_SHIFT); + set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT)); + pud = pud_offset(pgd, 0); + if (pmd_table != pmd_offset(pud, 0)) + BUG(); + } +#endif pud = pud_offset(pgd, 0); pmd_table = pmd_offset(pud, 0); -#endif - return pmd_table; } @@ -81,14 +84,12 @@ static pmd_t * __init one_md_table_init(pgd_t *pgd) */ static pte_t * __init one_page_table_init(pmd_t *pmd) { - if (pmd_none(*pmd)) { + if (!(pmd_val(*pmd) & _PAGE_PRESENT)) { pte_t *page_table = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE); + paravirt_alloc_pt(__pa(page_table) >> PAGE_SHIFT); set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE)); - if (page_table != pte_offset_kernel(pmd, 0)) - BUG(); - - return page_table; + BUG_ON(page_table != pte_offset_kernel(pmd, 0)); } return pte_offset_kernel(pmd, 0); @@ -108,7 +109,6 @@ static pte_t * __init one_page_table_init(pmd_t *pmd) static void __init page_table_range_init (unsigned long start, unsigned long end, pgd_t *pgd_base) { pgd_t *pgd; - pud_t *pud; pmd_t *pmd; int pgd_idx, pmd_idx; unsigned long vaddr; @@ -119,13 +119,10 @@ static void __init page_table_range_init (unsigned long start, unsigned long end pgd = pgd_base + pgd_idx; for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) { - if (pgd_none(*pgd)) - one_md_table_init(pgd); - pud = pud_offset(pgd, vaddr); - pmd = pmd_offset(pud, vaddr); + pmd = one_md_table_init(pgd); + pmd = pmd + pmd_index(vaddr); for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end); pmd++, pmd_idx++) { - if (pmd_none(*pmd)) - one_page_table_init(pmd); + one_page_table_init(pmd); vaddr += PMD_SIZE; } @@ -167,20 +164,22 @@ static void __init kernel_physical_mapping_init(pgd_t *pgd_base) /* Map with big pages if possible, otherwise create normal page tables. */ if (cpu_has_pse) { unsigned int address2 = (pfn + PTRS_PER_PTE - 1) * PAGE_SIZE + PAGE_OFFSET + PAGE_SIZE-1; - if (is_kernel_text(address) || is_kernel_text(address2)) set_pmd(pmd, pfn_pmd(pfn, PAGE_KERNEL_LARGE_EXEC)); else set_pmd(pmd, pfn_pmd(pfn, PAGE_KERNEL_LARGE)); + pfn += PTRS_PER_PTE; } else { pte = one_page_table_init(pmd); - for (pte_ofs = 0; pte_ofs < PTRS_PER_PTE && pfn < max_low_pfn; pte++, pfn++, pte_ofs++) { - if (is_kernel_text(address)) - set_pte(pte, pfn_pte(pfn, PAGE_KERNEL_EXEC)); - else - set_pte(pte, pfn_pte(pfn, PAGE_KERNEL)); + for (pte_ofs = 0; + pte_ofs < PTRS_PER_PTE && pfn < max_low_pfn; + pte++, pfn++, pte_ofs++, address += PAGE_SIZE) { + if (is_kernel_text(address)) + set_pte(pte, pfn_pte(pfn, PAGE_KERNEL_EXEC)); + else + set_pte(pte, pfn_pte(pfn, PAGE_KERNEL)); } } } @@ -337,24 +336,78 @@ extern void __init remap_numa_kva(void); #define remap_numa_kva() do {} while (0) #endif -static void __init pagetable_init (void) +void __init native_pagetable_setup_start(pgd_t *base) { - unsigned long vaddr; - pgd_t *pgd_base = swapper_pg_dir; - #ifdef CONFIG_X86_PAE int i; - /* Init entries of the first-level page table to the zero page */ - for (i = 0; i < PTRS_PER_PGD; i++) - set_pgd(pgd_base + i, __pgd(__pa(empty_zero_page) | _PAGE_PRESENT)); + + /* + * Init entries of the first-level page table to the + * zero page, if they haven't already been set up. + * + * In a normal native boot, we'll be running on a + * pagetable rooted in swapper_pg_dir, but not in PAE + * mode, so this will end up clobbering the mappings + * for the lower 24Mbytes of the address space, + * without affecting the kernel address space. + */ + for (i = 0; i < USER_PTRS_PER_PGD; i++) + set_pgd(&base[i], + __pgd(__pa(empty_zero_page) | _PAGE_PRESENT)); + + /* Make sure kernel address space is empty so that a pagetable + will be allocated for it. */ + memset(&base[USER_PTRS_PER_PGD], 0, + KERNEL_PGD_PTRS * sizeof(pgd_t)); #else paravirt_alloc_pd(__pa(swapper_pg_dir) >> PAGE_SHIFT); #endif +} + +void __init native_pagetable_setup_done(pgd_t *base) +{ +#ifdef CONFIG_X86_PAE + /* + * Add low memory identity-mappings - SMP needs it when + * starting up on an AP from real-mode. In the non-PAE + * case we already have these mappings through head.S. + * All user-space mappings are explicitly cleared after + * SMP startup. + */ + set_pgd(&base[0], base[USER_PTRS_PER_PGD]); +#endif +} + +/* + * Build a proper pagetable for the kernel mappings. Up until this + * point, we've been running on some set of pagetables constructed by + * the boot process. + * + * If we're booting on native hardware, this will be a pagetable + * constructed in arch/i386/kernel/head.S, and not running in PAE mode + * (even if we'll end up running in PAE). The root of the pagetable + * will be swapper_pg_dir. + * + * If we're booting paravirtualized under a hypervisor, then there are + * more options: we may already be running PAE, and the pagetable may + * or may not be based in swapper_pg_dir. In any case, + * paravirt_pagetable_setup_start() will set up swapper_pg_dir + * appropriately for the rest of the initialization to work. + * + * In general, pagetable_init() assumes that the pagetable may already + * be partially populated, and so it avoids stomping on any existing + * mappings. + */ +static void __init pagetable_init (void) +{ + unsigned long vaddr, end; + pgd_t *pgd_base = swapper_pg_dir; + + paravirt_pagetable_setup_start(pgd_base); /* Enable PSE if available */ - if (cpu_has_pse) { + if (cpu_has_pse) set_in_cr4(X86_CR4_PSE); - } /* Enable PGE if available */ if (cpu_has_pge) { @@ -371,20 +424,12 @@ static void __init pagetable_init (void) * created - mappings will be set by set_fixmap(): */ vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK; - page_table_range_init(vaddr, 0, pgd_base); + end = (FIXADDR_TOP + PMD_SIZE - 1) & PMD_MASK; + page_table_range_init(vaddr, end, pgd_base); permanent_kmaps_init(pgd_base); -#ifdef CONFIG_X86_PAE - /* - * Add low memory identity-mappings - SMP needs it when - * starting up on an AP from real-mode. In the non-PAE - * case we already have these mappings through head.S. - * All user-space mappings are explicitly cleared after - * SMP startup. - */ - set_pgd(&pgd_base[0], pgd_base[USER_PTRS_PER_PGD]); -#endif + paravirt_pagetable_setup_done(pgd_base); } #if defined(CONFIG_SOFTWARE_SUSPEND) || defined(CONFIG_ACPI_SLEEP) @@ -700,6 +745,8 @@ struct kmem_cache *pmd_cache; void __init pgtable_cache_init(void) { + size_t pgd_size = PTRS_PER_PGD*sizeof(pgd_t); + if (PTRS_PER_PMD > 1) { pmd_cache = kmem_cache_create("pmd", PTRS_PER_PMD*sizeof(pmd_t), @@ -709,13 +756,23 @@ void __init pgtable_cache_init(void) NULL); if (!pmd_cache) panic("pgtable_cache_init(): cannot create pmd cache"); + + if (!SHARED_KERNEL_PMD) { + /* If we're in PAE mode and have a non-shared + kernel pmd, then the pgd size must be a + page size. This is because the pgd_list + links through the page structure, so there + can only be one pgd per page for this to + work. */ + pgd_size = PAGE_SIZE; + } } pgd_cache = kmem_cache_create("pgd", - PTRS_PER_PGD*sizeof(pgd_t), - PTRS_PER_PGD*sizeof(pgd_t), + pgd_size, + pgd_size, 0, pgd_ctor, - PTRS_PER_PMD == 1 ? pgd_dtor : NULL); + (!SHARED_KERNEL_PMD) ? pgd_dtor : NULL); if (!pgd_cache) panic("pgtable_cache_init(): Cannot create pgd cache"); } @@ -751,13 +808,25 @@ static int noinline do_test_wp_bit(void) void mark_rodata_ro(void) { - unsigned long addr = (unsigned long)__start_rodata; + unsigned long start = PFN_ALIGN(_text); + unsigned long size = PFN_ALIGN(_etext) - start; - for (; addr < (unsigned long)__end_rodata; addr += PAGE_SIZE) - change_page_attr(virt_to_page(addr), 1, PAGE_KERNEL_RO); +#ifdef CONFIG_HOTPLUG_CPU + /* It must still be possible to apply SMP alternatives. */ + if (num_possible_cpus() <= 1) +#endif + { + change_page_attr(virt_to_page(start), + size >> PAGE_SHIFT, PAGE_KERNEL_RX); + printk("Write protecting the kernel text: %luk\n", size >> 10); + } - printk("Write protecting the kernel read-only data: %uk\n", - (__end_rodata - __start_rodata) >> 10); + start += size; + size = (unsigned long)__end_rodata - start; + change_page_attr(virt_to_page(start), + size >> PAGE_SHIFT, PAGE_KERNEL_RO); + printk("Write protecting the kernel read-only data: %luk\n", + size >> 10); /* * change_page_attr() requires a global_flush_tlb() call after it. @@ -780,7 +849,7 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end) free_page(addr); totalram_pages++; } - printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10); + printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10); } void free_initmem(void) diff --git a/arch/i386/mm/pageattr.c b/arch/i386/mm/pageattr.c index 412ebbd..47bd477 100644 --- a/arch/i386/mm/pageattr.c +++ b/arch/i386/mm/pageattr.c @@ -91,7 +91,7 @@ static void set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte) unsigned long flags; set_pte_atomic(kpte, pte); /* change init_mm */ - if (PTRS_PER_PMD > 1) + if (SHARED_KERNEL_PMD) return; spin_lock_irqsave(&pgd_lock, flags); @@ -142,7 +142,7 @@ __change_page_attr(struct page *page, pgprot_t prot) return -EINVAL; kpte_page = virt_to_page(kpte); if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL)) { - if ((pte_val(*kpte) & _PAGE_PSE) == 0) { + if (!pte_huge(*kpte)) { set_pte_atomic(kpte, mk_pte(page, prot)); } else { pgprot_t ref_prot; @@ -158,7 +158,7 @@ __change_page_attr(struct page *page, pgprot_t prot) kpte_page = split; } page_private(kpte_page)++; - } else if ((pte_val(*kpte) & _PAGE_PSE) == 0) { + } else if (!pte_huge(*kpte)) { set_pte_atomic(kpte, mk_pte(page, PAGE_KERNEL)); BUG_ON(page_private(kpte_page) == 0); page_private(kpte_page)--; diff --git a/arch/i386/mm/pgtable.c b/arch/i386/mm/pgtable.c index fa0cfbd..9a96c16 100644 --- a/arch/i386/mm/pgtable.c +++ b/arch/i386/mm/pgtable.c @@ -144,10 +144,8 @@ void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags) } static int fixmaps; -#ifndef CONFIG_COMPAT_VDSO unsigned long __FIXADDR_TOP = 0xfffff000; EXPORT_SYMBOL(__FIXADDR_TOP); -#endif void __set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t flags) { @@ -173,12 +171,8 @@ void reserve_top_address(unsigned long reserve) BUG_ON(fixmaps > 0); printk(KERN_INFO "Reserving virtual address space above 0x%08x\n", (int)-reserve); -#ifdef CONFIG_COMPAT_VDSO - BUG_ON(reserve != 0); -#else __FIXADDR_TOP = -reserve - PAGE_SIZE; __VMALLOC_RESERVE += reserve; -#endif } pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) @@ -238,42 +232,92 @@ static inline void pgd_list_del(pgd_t *pgd) set_page_private(next, (unsigned long)pprev); } +#if (PTRS_PER_PMD == 1) +/* Non-PAE pgd constructor */ void pgd_ctor(void *pgd, struct kmem_cache *cache, unsigned long unused) { unsigned long flags; - if (PTRS_PER_PMD == 1) { - memset(pgd, 0, USER_PTRS_PER_PGD*sizeof(pgd_t)); - spin_lock_irqsave(&pgd_lock, flags); - } + /* !PAE, no pagetable sharing */ + memset(pgd, 0, USER_PTRS_PER_PGD*sizeof(pgd_t)); + + spin_lock_irqsave(&pgd_lock, flags); + /* must happen under lock */ clone_pgd_range((pgd_t *)pgd + USER_PTRS_PER_PGD, swapper_pg_dir + USER_PTRS_PER_PGD, KERNEL_PGD_PTRS); - - if (PTRS_PER_PMD > 1) - return; - - /* must happen under lock */ paravirt_alloc_pd_clone(__pa(pgd) >> PAGE_SHIFT, - __pa(swapper_pg_dir) >> PAGE_SHIFT, - USER_PTRS_PER_PGD, PTRS_PER_PGD - USER_PTRS_PER_PGD); - + __pa(swapper_pg_dir) >> PAGE_SHIFT, + USER_PTRS_PER_PGD, + KERNEL_PGD_PTRS); pgd_list_add(pgd); spin_unlock_irqrestore(&pgd_lock, flags); } +#else /* PTRS_PER_PMD > 1 */ +/* PAE pgd constructor */ +void pgd_ctor(void *pgd, struct kmem_cache *cache, unsigned long unused) +{ + /* PAE, kernel PMD may be shared */ + + if (SHARED_KERNEL_PMD) { + clone_pgd_range((pgd_t *)pgd + USER_PTRS_PER_PGD, + swapper_pg_dir + USER_PTRS_PER_PGD, + KERNEL_PGD_PTRS); + } else { + unsigned long flags; + + memset(pgd, 0, USER_PTRS_PER_PGD*sizeof(pgd_t)); + spin_lock_irqsave(&pgd_lock, flags); + pgd_list_add(pgd); + spin_unlock_irqrestore(&pgd_lock, flags); + } +} +#endif /* PTRS_PER_PMD */ -/* never called when PTRS_PER_PMD > 1 */ void pgd_dtor(void *pgd, struct kmem_cache *cache, unsigned long unused) { unsigned long flags; /* can be called from interrupt context */ + BUG_ON(SHARED_KERNEL_PMD); + paravirt_release_pd(__pa(pgd) >> PAGE_SHIFT); spin_lock_irqsave(&pgd_lock, flags); pgd_list_del(pgd); spin_unlock_irqrestore(&pgd_lock, flags); } +#define UNSHARED_PTRS_PER_PGD \ + (SHARED_KERNEL_PMD ? USER_PTRS_PER_PGD : PTRS_PER_PGD) + +/* If we allocate a pmd for part of the kernel address space, then + make sure its initialized with the appropriate kernel mappings. + Otherwise use a cached zeroed pmd. */ +static pmd_t *pmd_cache_alloc(int idx) +{ + pmd_t *pmd; + + if (idx >= USER_PTRS_PER_PGD) { + pmd = (pmd_t *)__get_free_page(GFP_KERNEL); + + if (pmd) + memcpy(pmd, + (void *)pgd_page_vaddr(swapper_pg_dir[idx]), + sizeof(pmd_t) * PTRS_PER_PMD); + } else + pmd = kmem_cache_alloc(pmd_cache, GFP_KERNEL); + + return pmd; +} + +static void pmd_cache_free(pmd_t *pmd, int idx) +{ + if (idx >= USER_PTRS_PER_PGD) + free_page((unsigned long)pmd); + else + kmem_cache_free(pmd_cache, pmd); +} + pgd_t *pgd_alloc(struct mm_struct *mm) { int i; @@ -282,10 +326,12 @@ pgd_t *pgd_alloc(struct mm_struct *mm) if (PTRS_PER_PMD == 1 || !pgd) return pgd; - for (i = 0; i < USER_PTRS_PER_PGD; ++i) { - pmd_t *pmd = kmem_cache_alloc(pmd_cache, GFP_KERNEL); + for (i = 0; i < UNSHARED_PTRS_PER_PGD; ++i) { + pmd_t *pmd = pmd_cache_alloc(i); + if (!pmd) goto out_oom; + paravirt_alloc_pd(__pa(pmd) >> PAGE_SHIFT); set_pgd(&pgd[i], __pgd(1 + __pa(pmd))); } @@ -296,7 +342,7 @@ out_oom: pgd_t pgdent = pgd[i]; void* pmd = (void *)__va(pgd_val(pgdent)-1); paravirt_release_pd(__pa(pmd) >> PAGE_SHIFT); - kmem_cache_free(pmd_cache, pmd); + pmd_cache_free(pmd, i); } kmem_cache_free(pgd_cache, pgd); return NULL; @@ -308,11 +354,11 @@ void pgd_free(pgd_t *pgd) /* in the PAE case user pgd entries are overwritten before usage */ if (PTRS_PER_PMD > 1) - for (i = 0; i < USER_PTRS_PER_PGD; ++i) { + for (i = 0; i < UNSHARED_PTRS_PER_PGD; ++i) { pgd_t pgdent = pgd[i]; void* pmd = (void *)__va(pgd_val(pgdent)-1); paravirt_release_pd(__pa(pmd) >> PAGE_SHIFT); - kmem_cache_free(pmd_cache, pmd); + pmd_cache_free(pmd, i); } /* in the non-PAE case, free_pgtables() clears user pgd entries */ kmem_cache_free(pgd_cache, pgd); diff --git a/arch/i386/oprofile/nmi_int.c b/arch/i386/oprofile/nmi_int.c index 8fda7be..695f737 100644 --- a/arch/i386/oprofile/nmi_int.c +++ b/arch/i386/oprofile/nmi_int.c @@ -414,6 +414,10 @@ int __init op_nmi_init(struct oprofile_operations *ops) user space an consistent name. */ cpu_type = "x86-64/hammer"; break; + case 0x10: + model = &op_athlon_spec; + cpu_type = "x86-64/family10"; + break; } break; diff --git a/arch/i386/pci/fixup.c b/arch/i386/pci/fixup.c index 8053b17..b62eafb 100644 --- a/arch/i386/pci/fixup.c +++ b/arch/i386/pci/fixup.c @@ -354,7 +354,7 @@ static void __devinit pci_fixup_video(struct pci_dev *pdev) printk(KERN_DEBUG "Boot video device is %s\n", pci_name(pdev)); } } -DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video); +DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video); /* * Some Toshiba laptops need extra code to enable their TI TSB43AB22/A. diff --git a/arch/i386/pci/i386.c b/arch/i386/pci/i386.c index 43005f0..bcd2f94 100644 --- a/arch/i386/pci/i386.c +++ b/arch/i386/pci/i386.c @@ -246,8 +246,8 @@ int pcibios_enable_resources(struct pci_dev *dev, int mask) continue; if (!r->start && r->end) { printk(KERN_ERR "PCI: Device %s not available " - "because of resource collisions\n", - pci_name(dev)); + "because of resource %d collisions\n", + pci_name(dev), idx); return -EINVAL; } if (r->flags & IORESOURCE_IO) diff --git a/arch/i386/pci/init.c b/arch/i386/pci/init.c index b21b6da..1cf11af 100644 --- a/arch/i386/pci/init.c +++ b/arch/i386/pci/init.c @@ -6,7 +6,7 @@ in the right sequence from here. */ static __init int pci_access_init(void) { - int type = 0; + int type __attribute__((unused)) = 0; #ifdef CONFIG_PCI_DIRECT type = pci_direct_probe(); diff --git a/arch/i386/pci/mmconfig-shared.c b/arch/i386/pci/mmconfig-shared.c index 747d8c6..c7cabee 100644 --- a/arch/i386/pci/mmconfig-shared.c +++ b/arch/i386/pci/mmconfig-shared.c @@ -60,14 +60,19 @@ static const char __init *pci_mmcfg_e7520(void) u32 win; pci_conf1_read(0, 0, PCI_DEVFN(0,0), 0xce, 2, &win); - pci_mmcfg_config_num = 1; - pci_mmcfg_config = kzalloc(sizeof(pci_mmcfg_config[0]), GFP_KERNEL); - if (!pci_mmcfg_config) - return NULL; - pci_mmcfg_config[0].address = (win & 0xf000) << 16; - pci_mmcfg_config[0].pci_segment = 0; - pci_mmcfg_config[0].start_bus_number = 0; - pci_mmcfg_config[0].end_bus_number = 255; + win = win & 0xf000; + if(win == 0x0000 || win == 0xf000) + pci_mmcfg_config_num = 0; + else { + pci_mmcfg_config_num = 1; + pci_mmcfg_config = kzalloc(sizeof(pci_mmcfg_config[0]), GFP_KERNEL); + if (!pci_mmcfg_config) + return NULL; + pci_mmcfg_config[0].address = win << 16; + pci_mmcfg_config[0].pci_segment = 0; + pci_mmcfg_config[0].start_bus_number = 0; + pci_mmcfg_config[0].end_bus_number = 255; + } return "Intel Corporation E7520 Memory Controller Hub"; } @@ -108,6 +113,10 @@ static const char __init *pci_mmcfg_intel_945(void) if ((pciexbar & mask) & 0x0fffffffU) pci_mmcfg_config_num = 0; + /* Don't hit the APIC registers and their friends */ + if ((pciexbar & mask) >= 0xf0000000U) + pci_mmcfg_config_num = 0; + if (pci_mmcfg_config_num) { pci_mmcfg_config = kzalloc(sizeof(pci_mmcfg_config[0]), GFP_KERNEL); if (!pci_mmcfg_config) diff --git a/arch/i386/power/cpu.c b/arch/i386/power/cpu.c index 2c15500..998fd3e 100644 --- a/arch/i386/power/cpu.c +++ b/arch/i386/power/cpu.c @@ -21,6 +21,7 @@ unsigned long saved_context_eflags; void __save_processor_state(struct saved_context *ctxt) { + mtrr_save_fixed_ranges(NULL); kernel_fpu_begin(); /* diff --git a/arch/i386/power/suspend.c b/arch/i386/power/suspend.c index db5e98d..a0020b9 100644 --- a/arch/i386/power/suspend.c +++ b/arch/i386/power/suspend.c @@ -16,6 +16,9 @@ /* Defined in arch/i386/power/swsusp.S */ extern int restore_image(void); +/* References to section boundaries */ +extern const void __nosave_begin, __nosave_end; + /* Pointer to the temporary resume page tables */ pgd_t *resume_pg_dir; @@ -156,3 +159,14 @@ int swsusp_arch_resume(void) restore_image(); return 0; } + +/* + * pfn_is_nosave - check if given pfn is in the 'nosave' section + */ + +int pfn_is_nosave(unsigned long pfn) +{ + unsigned long nosave_begin_pfn = __pa_symbol(&__nosave_begin) >> PAGE_SHIFT; + unsigned long nosave_end_pfn = PAGE_ALIGN(__pa_symbol(&__nosave_end)) >> PAGE_SHIFT; + return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn); +} diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index e19185d..e23af4b 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -14,6 +14,7 @@ config IA64 select PCI if (!IA64_HP_SIM) select ACPI if (!IA64_HP_SIM) select PM if (!IA64_HP_SIM) + select ARCH_SUPPORTS_MSI default y help The Itanium Processor Family is Intel's 64-bit successor to @@ -438,6 +439,16 @@ config IA64_PALINFO To use this option, you have to ensure that the "/proc file system support" (CONFIG_PROC_FS) is enabled, too. +config IA64_MC_ERR_INJECT + tristate "MC error injection support" + help + Selets whether support for MC error injection. By enabling the + support, kernel provide sysfs interface for user application to + call MC error injection PAL procedure to inject various errors. + This is a useful tool for MCA testing. + + If you're unsure, do not select this option. + config SGI_SN def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) diff --git a/arch/ia64/defconfig b/arch/ia64/defconfig index 153bfdc..90bd960 100644 --- a/arch/ia64/defconfig +++ b/arch/ia64/defconfig @@ -164,6 +164,7 @@ CONFIG_COMPAT=y CONFIG_IA64_MCA_RECOVERY=y CONFIG_PERFMON=y CONFIG_IA64_PALINFO=y +# CONFIG_MC_ERR_INJECT is not set CONFIG_SGI_SN=y # CONFIG_IA64_ESI is not set diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile index 098ee60..33e5a59 100644 --- a/arch/ia64/kernel/Makefile +++ b/arch/ia64/kernel/Makefile @@ -34,6 +34,7 @@ obj-$(CONFIG_IA64_UNCACHED_ALLOCATOR) += uncached.o obj-$(CONFIG_AUDIT) += audit.o obj-$(CONFIG_PCI_MSI) += msi_ia64.o mca_recovery-y += mca_drv.o mca_drv_asm.o +obj-$(CONFIG_IA64_MC_ERR_INJECT)+= err_inject.o obj-$(CONFIG_IA64_ESI) += esi.o ifneq ($(CONFIG_IA64_ESI),) diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index f45f91d..78d29b7 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -660,6 +660,29 @@ efi_memory_descriptor (unsigned long phys_addr) return NULL; } +static int +efi_memmap_intersects (unsigned long phys_addr, unsigned long size) +{ + void *efi_map_start, *efi_map_end, *p; + efi_memory_desc_t *md; + u64 efi_desc_size; + unsigned long end; + + efi_map_start = __va(ia64_boot_param->efi_memmap); + efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size; + efi_desc_size = ia64_boot_param->efi_memdesc_size; + + end = phys_addr + size; + + for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) { + md = p; + + if (md->phys_addr < end && efi_md_end(md) > phys_addr) + return 1; + } + return 0; +} + u32 efi_mem_type (unsigned long phys_addr) { @@ -766,11 +789,28 @@ valid_phys_addr_range (unsigned long phys_addr, unsigned long size) int valid_mmap_phys_addr_range (unsigned long pfn, unsigned long size) { + unsigned long phys_addr = pfn << PAGE_SHIFT; + u64 attr; + + attr = efi_mem_attribute(phys_addr, size); + /* - * MMIO regions are often missing from the EFI memory map. - * We must allow mmap of them for programs like X, so we - * currently can't do any useful validation. + * /dev/mem mmap uses normal user pages, so we don't need the entire + * granule, but the entire region we're mapping must support the same + * attribute. */ + if (attr & EFI_MEMORY_WB || attr & EFI_MEMORY_UC) + return 1; + + /* + * Intel firmware doesn't tell us about all the MMIO regions, so + * in general we have to allow mmap requests. But if EFI *does* + * tell us about anything inside this region, we should deny it. + * The user can always map a smaller region to avoid the overlap. + */ + if (efi_memmap_intersects(phys_addr, size)) + return 0; + return 1; } diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index e7873ee..55fd2d5 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -767,7 +767,7 @@ ENTRY(ia64_leave_syscall) ld8.fill r15=[r3] // M0|1 restore r15 mov b6=r18 // I0 restore b6 - addl r17=THIS_CPU(ia64_phys_stacked_size_p8),r0 // A + LOAD_PHYS_STACK_REG_SIZE(r17) mov f9=f0 // F clear f9 (pKStk) br.cond.dpnt.many skip_rbs_switch // B @@ -775,7 +775,6 @@ ENTRY(ia64_leave_syscall) shr.u r18=r19,16 // I0|1 get byte size of existing "dirty" partition cover // B add current frame into dirty partition & set cr.ifs ;; -(pUStk) ld4 r17=[r17] // M0|1 r17 = cpu_data->phys_stacked_size_p8 mov r19=ar.bsp // M2 get new backing store pointer mov f10=f0 // F clear f10 @@ -953,9 +952,7 @@ GLOBAL_ENTRY(ia64_leave_kernel) shr.u r18=r19,16 // get byte size of existing "dirty" partition ;; mov r16=ar.bsp // get existing backing store pointer - addl r17=THIS_CPU(ia64_phys_stacked_size_p8),r0 - ;; - ld4 r17=[r17] // r17 = cpu_data->phys_stacked_size_p8 + LOAD_PHYS_STACK_REG_SIZE(r17) (pKStk) br.cond.dpnt skip_rbs_switch /* diff --git a/arch/ia64/kernel/err_inject.c b/arch/ia64/kernel/err_inject.c new file mode 100644 index 0000000..d3e9f33 --- /dev/null +++ b/arch/ia64/kernel/err_inject.c @@ -0,0 +1,293 @@ +/* + * err_inject.c - + * 1.) Inject errors to a processor. + * 2.) Query error injection capabilities. + * This driver along with user space code can be acting as an error + * injection tool. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Written by: Fenghua Yu <fenghua.yu@intel.com>, Intel Corporation + * Copyright (C) 2006, Intel Corp. All rights reserved. + * + */ +#include <linux/sysdev.h> +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/cpu.h> +#include <linux/module.h> + +#define ERR_INJ_DEBUG + +#define ERR_DATA_BUFFER_SIZE 3 // Three 8-byte; + +#define define_one_ro(name) \ +static SYSDEV_ATTR(name, 0444, show_##name, NULL) + +#define define_one_rw(name) \ +static SYSDEV_ATTR(name, 0644, show_##name, store_##name) + +static u64 call_start[NR_CPUS]; +static u64 phys_addr[NR_CPUS]; +static u64 err_type_info[NR_CPUS]; +static u64 err_struct_info[NR_CPUS]; +static struct { + u64 data1; + u64 data2; + u64 data3; +} __attribute__((__aligned__(16))) err_data_buffer[NR_CPUS]; +static s64 status[NR_CPUS]; +static u64 capabilities[NR_CPUS]; +static u64 resources[NR_CPUS]; + +#define show(name) \ +static ssize_t \ +show_##name(struct sys_device *dev, char *buf) \ +{ \ + u32 cpu=dev->id; \ + return sprintf(buf, "%lx\n", name[cpu]); \ +} + +#define store(name) \ +static ssize_t \ +store_##name(struct sys_device *dev, const char *buf, size_t size) \ +{ \ + unsigned int cpu=dev->id; \ + name[cpu] = simple_strtoull(buf, NULL, 16); \ + return size; \ +} + +show(call_start) + +/* It's user's responsibility to call the PAL procedure on a specific + * processor. The cpu number in driver is only used for storing data. + */ +static ssize_t +store_call_start(struct sys_device *dev, const char *buf, size_t size) +{ + unsigned int cpu=dev->id; + unsigned long call_start = simple_strtoull(buf, NULL, 16); + +#ifdef ERR_INJ_DEBUG + printk(KERN_DEBUG "pal_mc_err_inject for cpu%d:\n", cpu); + printk(KERN_DEBUG "err_type_info=%lx,\n", err_type_info[cpu]); + printk(KERN_DEBUG "err_struct_info=%lx,\n", err_struct_info[cpu]); + printk(KERN_DEBUG "err_data_buffer=%lx, %lx, %lx.\n", + err_data_buffer[cpu].data1, + err_data_buffer[cpu].data2, + err_data_buffer[cpu].data3); +#endif + switch (call_start) { + case 0: /* Do nothing. */ + break; + case 1: /* Call pal_mc_error_inject in physical mode. */ + status[cpu]=ia64_pal_mc_error_inject_phys(err_type_info[cpu], + err_struct_info[cpu], + ia64_tpa(&err_data_buffer[cpu]), + &capabilities[cpu], + &resources[cpu]); + break; + case 2: /* Call pal_mc_error_inject in virtual mode. */ + status[cpu]=ia64_pal_mc_error_inject_virt(err_type_info[cpu], + err_struct_info[cpu], + ia64_tpa(&err_data_buffer[cpu]), + &capabilities[cpu], + &resources[cpu]); + break; + default: + status[cpu] = -EINVAL; + break; + } + +#ifdef ERR_INJ_DEBUG + printk(KERN_DEBUG "Returns: status=%d,\n", (int)status[cpu]); + printk(KERN_DEBUG "capapbilities=%lx,\n", capabilities[cpu]); + printk(KERN_DEBUG "resources=%lx\n", resources[cpu]); +#endif + return size; +} + +show(err_type_info) +store(err_type_info) + +static ssize_t +show_virtual_to_phys(struct sys_device *dev, char *buf) +{ + unsigned int cpu=dev->id; + return sprintf(buf, "%lx\n", phys_addr[cpu]); +} + +static ssize_t +store_virtual_to_phys(struct sys_device *dev, const char *buf, size_t size) +{ + unsigned int cpu=dev->id; + u64 virt_addr=simple_strtoull(buf, NULL, 16); + int ret; + + ret = get_user_pages(current, current->mm, virt_addr, + 1, VM_READ, 0, NULL, NULL); + if (ret<=0) { +#ifdef ERR_INJ_DEBUG + printk("Virtual address %lx is not existing.\n",virt_addr); +#endif + return -EINVAL; + } + + phys_addr[cpu] = ia64_tpa(virt_addr); + return size; +} + +show(err_struct_info) +store(err_struct_info) + +static ssize_t +show_err_data_buffer(struct sys_device *dev, char *buf) +{ + unsigned int cpu=dev->id; + + return sprintf(buf, "%lx, %lx, %lx\n", + err_data_buffer[cpu].data1, + err_data_buffer[cpu].data2, + err_data_buffer[cpu].data3); +} + +static ssize_t +store_err_data_buffer(struct sys_device *dev, const char *buf, size_t size) +{ + unsigned int cpu=dev->id; + int ret; + +#ifdef ERR_INJ_DEBUG + printk("write err_data_buffer=[%lx,%lx,%lx] on cpu%d\n", + err_data_buffer[cpu].data1, + err_data_buffer[cpu].data2, + err_data_buffer[cpu].data3, + cpu); +#endif + ret=sscanf(buf, "%lx, %lx, %lx", + &err_data_buffer[cpu].data1, + &err_data_buffer[cpu].data2, + &err_data_buffer[cpu].data3); + if (ret!=ERR_DATA_BUFFER_SIZE) + return -EINVAL; + + return size; +} + +show(status) +show(capabilities) +show(resources) + +define_one_rw(call_start); +define_one_rw(err_type_info); +define_one_rw(err_struct_info); +define_one_rw(err_data_buffer); +define_one_rw(virtual_to_phys); +define_one_ro(status); +define_one_ro(capabilities); +define_one_ro(resources); + +static struct attribute *default_attrs[] = { + &attr_call_start.attr, + &attr_virtual_to_phys.attr, + &attr_err_type_info.attr, + &attr_err_struct_info.attr, + &attr_err_data_buffer.attr, + &attr_status.attr, + &attr_capabilities.attr, + &attr_resources.attr, + NULL +}; + +static struct attribute_group err_inject_attr_group = { + .attrs = default_attrs, + .name = "err_inject" +}; +/* Add/Remove err_inject interface for CPU device */ +static int __cpuinit err_inject_add_dev(struct sys_device * sys_dev) +{ + return sysfs_create_group(&sys_dev->kobj, &err_inject_attr_group); +} + +static int __cpuinit err_inject_remove_dev(struct sys_device * sys_dev) +{ + sysfs_remove_group(&sys_dev->kobj, &err_inject_attr_group); + return 0; +} +static int __cpuinit err_inject_cpu_callback(struct notifier_block *nfb, + unsigned long action, void *hcpu) +{ + unsigned int cpu = (unsigned long)hcpu; + struct sys_device *sys_dev; + + sys_dev = get_cpu_sysdev(cpu); + switch (action) { + case CPU_ONLINE: + err_inject_add_dev(sys_dev); + break; + case CPU_DEAD: + err_inject_remove_dev(sys_dev); + break; + } + + return NOTIFY_OK; +} + +static struct notifier_block __cpuinitdata err_inject_cpu_notifier = +{ + .notifier_call = err_inject_cpu_callback, +}; + +static int __init +err_inject_init(void) +{ + int i; + +#ifdef ERR_INJ_DEBUG + printk(KERN_INFO "Enter error injection driver.\n"); +#endif + for_each_online_cpu(i) { + err_inject_cpu_callback(&err_inject_cpu_notifier, CPU_ONLINE, + (void *)(long)i); + } + + register_hotcpu_notifier(&err_inject_cpu_notifier); + + return 0; +} + +static void __exit +err_inject_exit(void) +{ + int i; + struct sys_device *sys_dev; + +#ifdef ERR_INJ_DEBUG + printk(KERN_INFO "Exit error injection driver.\n"); +#endif + for_each_online_cpu(i) { + sys_dev = get_cpu_sysdev(i); + sysfs_remove_group(&sys_dev->kobj, &err_inject_attr_group); + } + unregister_hotcpu_notifier(&err_inject_cpu_notifier); +} + +module_init(err_inject_init); +module_exit(err_inject_exit); + +MODULE_AUTHOR("Fenghua Yu <fenghua.yu@intel.com>"); +MODULE_DESCRIPTION("MC error injection kenrel sysfs interface"); +MODULE_LICENSE("GPL"); diff --git a/arch/ia64/kernel/ivt.S b/arch/ia64/kernel/ivt.S index 6b7fcbd..34f44d8 100644 --- a/arch/ia64/kernel/ivt.S +++ b/arch/ia64/kernel/ivt.S @@ -374,6 +374,7 @@ ENTRY(alt_dtlb_miss) movl r19=(((1 << IA64_MAX_PHYS_BITS) - 1) & ~0xfff) mov r21=cr.ipsr mov r31=pr + mov r24=PERCPU_ADDR ;; #ifdef CONFIG_DISABLE_VHPT shr.u r22=r16,61 // get the region number into r21 @@ -386,22 +387,30 @@ ENTRY(alt_dtlb_miss) (p8) mov r29=b0 // save b0 (p8) br.cond.dptk dtlb_fault #endif + cmp.ge p10,p11=r16,r24 // access to per_cpu_data? + tbit.z p12,p0=r16,61 // access to region 6? + mov r25=PERCPU_PAGE_SHIFT << 2 + mov r26=PERCPU_PAGE_SIZE + nop.m 0 + nop.b 0 + ;; +(p10) mov r19=IA64_KR(PER_CPU_DATA) +(p11) and r19=r19,r16 // clear non-ppn fields extr.u r23=r21,IA64_PSR_CPL0_BIT,2 // extract psr.cpl and r22=IA64_ISR_CODE_MASK,r20 // get the isr.code field tbit.nz p6,p7=r20,IA64_ISR_SP_BIT // is speculation bit on? - shr.u r18=r16,57 // move address bit 61 to bit 4 - and r19=r19,r16 // clear ed, reserved bits, and PTE control bits tbit.nz p9,p0=r20,IA64_ISR_NA_BIT // is non-access bit on? ;; - andcm r18=0x10,r18 // bit 4=~address-bit(61) +(p10) sub r19=r19,r26 +(p10) mov cr.itir=r25 cmp.ne p8,p0=r0,r23 (p9) cmp.eq.or.andcm p6,p7=IA64_ISR_CODE_LFETCH,r22 // check isr.code field +(p12) dep r17=-1,r17,4,1 // set ma=UC for region 6 addr (p8) br.cond.spnt page_fault dep r21=-1,r21,IA64_PSR_ED_BIT,1 - or r19=r19,r17 // insert PTE control bits into r19 ;; - or r19=r19,r18 // set bit 4 (uncached) if the access was to region 6 + or r19=r19,r17 // insert PTE control bits into r19 (p6) mov cr.ipsr=r21 ;; (p7) itc.d r19 // insert the TLB entry diff --git a/arch/ia64/kernel/mca_asm.S b/arch/ia64/kernel/mca_asm.S index c6b607c..8c9c26a 100644 --- a/arch/ia64/kernel/mca_asm.S +++ b/arch/ia64/kernel/mca_asm.S @@ -101,14 +101,6 @@ ia64_do_tlb_purge: ;; srlz.d ;; - // 2. Purge DTR for PERCPU data. - movl r16=PERCPU_ADDR - mov r18=PERCPU_PAGE_SHIFT<<2 - ;; - ptr.d r16,r18 - ;; - srlz.d - ;; // 3. Purge ITR for PAL code. GET_THIS_PADDR(r2, ia64_mca_pal_base) ;; @@ -196,22 +188,6 @@ ia64_reload_tr: srlz.i srlz.d ;; - // 2. Reload DTR register for PERCPU data. - GET_THIS_PADDR(r2, ia64_mca_per_cpu_pte) - ;; - movl r16=PERCPU_ADDR // vaddr - movl r18=PERCPU_PAGE_SHIFT<<2 - ;; - mov cr.itir=r18 - mov cr.ifa=r16 - ;; - ld8 r18=[r2] // load per-CPU PTE - mov r16=IA64_TR_PERCPU_DATA; - ;; - itr.d dtr[r16]=r18 - ;; - srlz.d - ;; // 3. Reload ITR for PAL code. GET_THIS_PADDR(r2, ia64_mca_pal_pte) ;; diff --git a/arch/ia64/kernel/patch.c b/arch/ia64/kernel/patch.c index bc11bb0..e796e29 100644 --- a/arch/ia64/kernel/patch.c +++ b/arch/ia64/kernel/patch.c @@ -195,3 +195,23 @@ ia64_patch_gate (void) ia64_patch_vtop(START(vtop), END(vtop)); ia64_patch_mckinley_e9(START(mckinley_e9), END(mckinley_e9)); } + +void ia64_patch_phys_stack_reg(unsigned long val) +{ + s32 * offp = (s32 *) __start___phys_stack_reg_patchlist; + s32 * end = (s32 *) __end___phys_stack_reg_patchlist; + u64 ip, mask, imm; + + /* see instruction format A4: adds r1 = imm13, r3 */ + mask = (0x3fUL << 27) | (0x7f << 13); + imm = (((val >> 7) & 0x3f) << 27) | (val & 0x7f) << 13; + + while (offp < end) { + ip = (u64) offp + *offp; + ia64_patch(ip, mask, imm); + ia64_fc(ip); + ++offp; + } + ia64_sync_i(); + ia64_srlz_i(); +} diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index dc7dd76..6e19da1 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -75,7 +75,6 @@ extern void ia64_setup_printk_clock(void); DEFINE_PER_CPU(struct cpuinfo_ia64, cpu_info); DEFINE_PER_CPU(unsigned long, local_per_cpu_offset); -DEFINE_PER_CPU(unsigned long, ia64_phys_stacked_size_p8); unsigned long ia64_cycles_per_usec; struct ia64_boot_param *ia64_boot_param; struct screen_info screen_info; @@ -869,6 +868,7 @@ void __cpuinit cpu_init (void) { extern void __cpuinit ia64_mmu_init (void *); + static unsigned long max_num_phys_stacked = IA64_NUM_PHYS_STACK_REG; unsigned long num_phys_stacked; pal_vm_info_2_u_t vmi; unsigned int max_ctx; @@ -982,7 +982,10 @@ cpu_init (void) num_phys_stacked = 96; } /* size of physical stacked register partition plus 8 bytes: */ - __get_cpu_var(ia64_phys_stacked_size_p8) = num_phys_stacked*8 + 8; + if (num_phys_stacked > max_num_phys_stacked) { + ia64_patch_phys_stack_reg(num_phys_stacked*8 + 8); + max_num_phys_stacked = num_phys_stacked; + } platform_cpu_init(); pm_idle = default_idle; } diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c index 9ef62a3..2fcaa20 100644 --- a/arch/ia64/kernel/sys_ia64.c +++ b/arch/ia64/kernel/sys_ia64.c @@ -33,6 +33,13 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len if (len > RGN_MAP_LIMIT) return -ENOMEM; + /* handle fixed mapping: prevent overlap with huge pages */ + if (flags & MAP_FIXED) { + if (is_hugepage_only_range(mm, addr, len)) + return -EINVAL; + return addr; + } + #ifdef CONFIG_HUGETLB_PAGE if (REGION_NUMBER(addr) == RGN_HPAGE) addr = 0; diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S index 25dd55e..6923826 100644 --- a/arch/ia64/kernel/vmlinux.lds.S +++ b/arch/ia64/kernel/vmlinux.lds.S @@ -78,6 +78,13 @@ SECTIONS __stop___mca_table = .; } + .data.patch.phys_stack_reg : AT(ADDR(.data.patch.phys_stack_reg) - LOAD_OFFSET) + { + __start___phys_stack_reg_patchlist = .; + *(.data.patch.phys_stack_reg) + __end___phys_stack_reg_patchlist = .; + } + /* Global data */ _data = .; diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c index 0c7e94e..c7c90f4 100644 --- a/arch/ia64/mm/hugetlbpage.c +++ b/arch/ia64/mm/hugetlbpage.c @@ -148,6 +148,14 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u return -ENOMEM; if (len & ~HPAGE_MASK) return -EINVAL; + + /* Handle MAP_FIXED */ + if (flags & MAP_FIXED) { + if (prepare_hugepage_range(addr, len, pgoff)) + return -EINVAL; + return addr; + } + /* This code assumes that RGN_HPAGE != 0. */ if ((REGION_NUMBER(addr) != RGN_HPAGE) || (addr & (HPAGE_SIZE - 1))) addr = HPAGE_REGION_BASE; diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 4f36987..cffb1e8 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -121,7 +121,7 @@ lazy_mmu_prot_update (pte_t pte) return; /* i-cache is already coherent with d-cache */ if (PageCompound(page)) { - order = (unsigned long) (page[1].lru.prev); + order = compound_order(page); flush_icache_range(addr, addr + (1UL << order << PAGE_SHIFT)); } else @@ -355,7 +355,7 @@ setup_gate (void) void __devinit ia64_mmu_init (void *my_cpu_data) { - unsigned long psr, pta, impl_va_bits; + unsigned long pta, impl_va_bits; extern void __devinit tlb_init (void); #ifdef CONFIG_DISABLE_VHPT @@ -364,15 +364,6 @@ ia64_mmu_init (void *my_cpu_data) # define VHPT_ENABLE_BIT 1 #endif - /* Pin mapping for percpu area into TLB */ - psr = ia64_clear_ic(); - ia64_itr(0x2, IA64_TR_PERCPU_DATA, PERCPU_ADDR, - pte_val(pfn_pte(__pa(my_cpu_data) >> PAGE_SHIFT, PAGE_KERNEL)), - PERCPU_PAGE_SHIFT); - - ia64_set_psr(psr); - ia64_srlz_i(); - /* * Check if the virtually mapped linear page table (VMLPT) overlaps with a mapped * address space. The IA-64 architecture guarantees that at least 50 bits of diff --git a/arch/ia64/mm/ioremap.c b/arch/ia64/mm/ioremap.c index 4280c07..2a14062 100644 --- a/arch/ia64/mm/ioremap.c +++ b/arch/ia64/mm/ioremap.c @@ -1,5 +1,5 @@ /* - * (c) Copyright 2006 Hewlett-Packard Development Company, L.P. + * (c) Copyright 2006, 2007 Hewlett-Packard Development Company, L.P. * Bjorn Helgaas <bjorn.helgaas@hp.com> * * This program is free software; you can redistribute it and/or modify @@ -10,51 +10,101 @@ #include <linux/compiler.h> #include <linux/module.h> #include <linux/efi.h> +#include <linux/io.h> +#include <linux/vmalloc.h> #include <asm/io.h> #include <asm/meminit.h> static inline void __iomem * -__ioremap (unsigned long offset, unsigned long size) +__ioremap (unsigned long phys_addr) { - return (void __iomem *) (__IA64_UNCACHED_OFFSET | offset); + return (void __iomem *) (__IA64_UNCACHED_OFFSET | phys_addr); } void __iomem * -ioremap (unsigned long offset, unsigned long size) +ioremap (unsigned long phys_addr, unsigned long size) { + void __iomem *addr; + struct vm_struct *area; + unsigned long offset; + pgprot_t prot; u64 attr; unsigned long gran_base, gran_size; + unsigned long page_base; /* * For things in kern_memmap, we must use the same attribute * as the rest of the kernel. For more details, see * Documentation/ia64/aliasing.txt. */ - attr = kern_mem_attribute(offset, size); + attr = kern_mem_attribute(phys_addr, size); if (attr & EFI_MEMORY_WB) - return (void __iomem *) phys_to_virt(offset); + return (void __iomem *) phys_to_virt(phys_addr); else if (attr & EFI_MEMORY_UC) - return __ioremap(offset, size); + return __ioremap(phys_addr); /* * Some chipsets don't support UC access to memory. If * WB is supported for the whole granule, we prefer that. */ - gran_base = GRANULEROUNDDOWN(offset); - gran_size = GRANULEROUNDUP(offset + size) - gran_base; + gran_base = GRANULEROUNDDOWN(phys_addr); + gran_size = GRANULEROUNDUP(phys_addr + size) - gran_base; if (efi_mem_attribute(gran_base, gran_size) & EFI_MEMORY_WB) - return (void __iomem *) phys_to_virt(offset); + return (void __iomem *) phys_to_virt(phys_addr); - return __ioremap(offset, size); + /* + * WB is not supported for the whole granule, so we can't use + * the region 7 identity mapping. If we can safely cover the + * area with kernel page table mappings, we can use those + * instead. + */ + page_base = phys_addr & PAGE_MASK; + size = PAGE_ALIGN(phys_addr + size) - page_base; + if (efi_mem_attribute(page_base, size) & EFI_MEMORY_WB) { + prot = PAGE_KERNEL; + + /* + * Mappings have to be page-aligned + */ + offset = phys_addr & ~PAGE_MASK; + phys_addr &= PAGE_MASK; + + /* + * Ok, go for it.. + */ + area = get_vm_area(size, VM_IOREMAP); + if (!area) + return NULL; + + area->phys_addr = phys_addr; + addr = (void __iomem *) area->addr; + if (ioremap_page_range((unsigned long) addr, + (unsigned long) addr + size, phys_addr, prot)) { + vunmap((void __force *) addr); + return NULL; + } + + return (void __iomem *) (offset + (char __iomem *)addr); + } + + return __ioremap(phys_addr); } EXPORT_SYMBOL(ioremap); void __iomem * -ioremap_nocache (unsigned long offset, unsigned long size) +ioremap_nocache (unsigned long phys_addr, unsigned long size) { - if (kern_mem_attribute(offset, size) & EFI_MEMORY_WB) + if (kern_mem_attribute(phys_addr, size) & EFI_MEMORY_WB) return NULL; - return __ioremap(offset, size); + return __ioremap(phys_addr); } EXPORT_SYMBOL(ioremap_nocache); + +void +iounmap (volatile void __iomem *addr) +{ + if (REGION_NUMBER(addr) == RGN_GATE) + vunmap((void *) ((unsigned long) addr & PAGE_MASK)); +} +EXPORT_SYMBOL(iounmap); diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 0e83f3b..9f63589 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -659,8 +659,6 @@ pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma) return -EINVAL; prot = phys_mem_access_prot(NULL, vma->vm_pgoff, size, vma->vm_page_prot); - if (pgprot_val(prot) != pgprot_val(pgprot_noncached(vma->vm_page_prot))) - return -EINVAL; addr = pci_get_legacy_mem(bus); if (IS_ERR(addr)) diff --git a/arch/ia64/sn/kernel/huberror.c b/arch/ia64/sn/kernel/huberror.c index fcf7f93..2c3f9df 100644 --- a/arch/ia64/sn/kernel/huberror.c +++ b/arch/ia64/sn/kernel/huberror.c @@ -8,7 +8,6 @@ #include <linux/types.h> #include <linux/interrupt.h> -#include <linux/pci.h> #include <asm/delay.h> #include <asm/sn/sn_sal.h> #include "ioerror.h" diff --git a/arch/ia64/sn/kernel/msi_sn.c b/arch/ia64/sn/kernel/msi_sn.c index 49873aa..83f190f 100644 --- a/arch/ia64/sn/kernel/msi_sn.c +++ b/arch/ia64/sn/kernel/msi_sn.c @@ -87,7 +87,6 @@ int sn_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *entry) if (irq < 0) return irq; - set_irq_msi(irq, entry); /* * Set up the vector plumbing. Let the prom (via sn_intr_alloc) * decide which cpu to direct this msi at by default. @@ -144,10 +143,11 @@ int sn_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *entry) */ msg.data = 0x100 + irq; + set_irq_msi(irq, entry); write_msi_msg(irq, &msg); set_irq_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq); - return irq; + return 0; } #ifdef CONFIG_SMP diff --git a/arch/ia64/sn/kernel/xpnet.c b/arch/ia64/sn/kernel/xpnet.c index 5419acb..88fad85 100644 --- a/arch/ia64/sn/kernel/xpnet.c +++ b/arch/ia64/sn/kernel/xpnet.c @@ -24,7 +24,6 @@ #include <linux/module.h> #include <linux/kernel.h> -#include <linux/pci.h> #include <linux/init.h> #include <linux/ioport.h> #include <linux/netdevice.h> diff --git a/arch/m32r/kernel/vmlinux.lds.S b/arch/m32r/kernel/vmlinux.lds.S index 439cc25..6c73bca 100644 --- a/arch/m32r/kernel/vmlinux.lds.S +++ b/arch/m32r/kernel/vmlinux.lds.S @@ -110,7 +110,7 @@ SECTIONS __initramfs_end = .; #endif - . = ALIGN(32); + . = ALIGN(4096); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index a8e1e60..b8536c7 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -409,6 +409,9 @@ config STRAM_PROC help Say Y here to report ST-RAM usage statistics in /proc/stram. +config ATARI_KBD_CORE + bool + config HEARTBEAT bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40 default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300 diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile index 34d826d..c20831a 100644 --- a/arch/m68k/Makefile +++ b/arch/m68k/Makefile @@ -21,7 +21,7 @@ AS += -m68020 LDFLAGS := -m m68kelf ifneq ($(COMPILE_ARCH),$(ARCH)) # prefix for cross-compiling binaries - CROSS_COMPILE = m68k-linux- + CROSS_COMPILE = m68k-linux-gnu- endif ifdef CONFIG_SUN3 diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c index 28d95cf..907a553 100644 --- a/arch/m68k/amiga/amiints.c +++ b/arch/m68k/amiga/amiints.c @@ -54,7 +54,7 @@ static irqreturn_t ami_int5(int irq, void *dev_id); static struct irq_controller amiga_irq_controller = { .name = "amiga", - .lock = SPIN_LOCK_UNLOCKED, + .lock = __SPIN_LOCK_UNLOCKED(amiga_irq_controller.lock), .enable = amiga_enable_irq, .disable = amiga_disable_irq, }; diff --git a/arch/m68k/amiga/cia.c b/arch/m68k/amiga/cia.c index 7a20058..c4a4ffd 100644 --- a/arch/m68k/amiga/cia.c +++ b/arch/m68k/amiga/cia.c @@ -123,7 +123,7 @@ static void cia_disable_irq(unsigned int irq) static struct irq_controller cia_irq_controller = { .name = "cia", - .lock = SPIN_LOCK_UNLOCKED, + .lock = __SPIN_LOCK_UNLOCKED(cia_irq_controller.lock), .enable = cia_enable_irq, .disable = cia_disable_irq, }; @@ -160,7 +160,7 @@ static void auto_disable_irq(unsigned int irq) static struct irq_controller auto_irq_controller = { .name = "auto", - .lock = SPIN_LOCK_UNLOCKED, + .lock = __SPIN_LOCK_UNLOCKED(auto_irq_controller.lock), .enable = auto_enable_irq, .disable = auto_disable_irq, }; diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c index 3204f41..3574853 100644 --- a/arch/m68k/amiga/config.c +++ b/arch/m68k/amiga/config.c @@ -22,9 +22,7 @@ #include <linux/vt_kern.h> #include <linux/delay.h> #include <linux/interrupt.h> -#ifdef CONFIG_ZORRO #include <linux/zorro.h> -#endif #include <asm/bootinfo.h> #include <asm/setup.h> @@ -62,55 +60,51 @@ static char s_cdtv[] __initdata = "CDTV"; static char s_cd32[] __initdata = "CD32"; static char s_draco[] __initdata = "Draco"; static char *amiga_models[] __initdata = { - [AMI_500-AMI_500] = s_a500, - [AMI_500PLUS-AMI_500] = s_a500p, - [AMI_600-AMI_500] = s_a600, - [AMI_1000-AMI_500] = s_a1000, - [AMI_1200-AMI_500] = s_a1200, - [AMI_2000-AMI_500] = s_a2000, - [AMI_2500-AMI_500] = s_a2500, - [AMI_3000-AMI_500] = s_a3000, - [AMI_3000T-AMI_500] = s_a3000t, - [AMI_3000PLUS-AMI_500] = s_a3000p, - [AMI_4000-AMI_500] = s_a4000, - [AMI_4000T-AMI_500] = s_a4000t, - [AMI_CDTV-AMI_500] = s_cdtv, - [AMI_CD32-AMI_500] = s_cd32, - [AMI_DRACO-AMI_500] = s_draco, + [AMI_500-AMI_500] = s_a500, + [AMI_500PLUS-AMI_500] = s_a500p, + [AMI_600-AMI_500] = s_a600, + [AMI_1000-AMI_500] = s_a1000, + [AMI_1200-AMI_500] = s_a1200, + [AMI_2000-AMI_500] = s_a2000, + [AMI_2500-AMI_500] = s_a2500, + [AMI_3000-AMI_500] = s_a3000, + [AMI_3000T-AMI_500] = s_a3000t, + [AMI_3000PLUS-AMI_500] = s_a3000p, + [AMI_4000-AMI_500] = s_a4000, + [AMI_4000T-AMI_500] = s_a4000t, + [AMI_CDTV-AMI_500] = s_cdtv, + [AMI_CD32-AMI_500] = s_cd32, + [AMI_DRACO-AMI_500] = s_draco, }; static char amiga_model_name[13] = "Amiga "; -extern char m68k_debug_device[]; - static void amiga_sched_init(irq_handler_t handler); /* amiga specific irq functions */ -extern void amiga_init_IRQ (void); +extern void amiga_init_IRQ(void); static void amiga_get_model(char *model); static int amiga_get_hardware_list(char *buffer); /* amiga specific timer functions */ -static unsigned long amiga_gettimeoffset (void); -static int a3000_hwclk (int, struct rtc_time *); -static int a2000_hwclk (int, struct rtc_time *); -static int amiga_set_clock_mmss (unsigned long); -static unsigned int amiga_get_ss (void); -extern void amiga_mksound( unsigned int count, unsigned int ticks ); -static void amiga_reset (void); +static unsigned long amiga_gettimeoffset(void); +static int a3000_hwclk(int, struct rtc_time *); +static int a2000_hwclk(int, struct rtc_time *); +static int amiga_set_clock_mmss(unsigned long); +static unsigned int amiga_get_ss(void); +extern void amiga_mksound(unsigned int count, unsigned int ticks); +static void amiga_reset(void); extern void amiga_init_sound(void); -static void amiga_savekmsg_init(void); static void amiga_mem_console_write(struct console *co, const char *b, unsigned int count); void amiga_serial_console_write(struct console *co, const char *s, unsigned int count); -static void amiga_debug_init(void); #ifdef CONFIG_HEARTBEAT static void amiga_heartbeat(int on); #endif static struct console amiga_console_driver = { - .name = "debug", - .flags = CON_PRINTBUFFER, - .index = -1, + .name = "debug", + .flags = CON_PRINTBUFFER, + .index = -1, }; @@ -119,24 +113,24 @@ static struct console amiga_console_driver = { */ static struct { - struct resource _ciab, _ciaa, _custom, _kickstart; + struct resource _ciab, _ciaa, _custom, _kickstart; } mb_resources = { - ._ciab = { - .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff - }, - ._ciaa = { - .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff - }, - ._custom = { - .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff - }, - ._kickstart = { - .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff - } + ._ciab = { + .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff + }, + ._ciaa = { + .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff + }, + ._custom = { + .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff + }, + ._kickstart = { + .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff + } }; static struct resource rtc_resource = { - .start = 0x00dc0000, .end = 0x00dcffff + .start = 0x00dc0000, .end = 0x00dcffff }; static struct resource ram_resource[NUM_MEMINFO]; @@ -148,57 +142,57 @@ static struct resource ram_resource[NUM_MEMINFO]; int amiga_parse_bootinfo(const struct bi_record *record) { - int unknown = 0; - const unsigned long *data = record->data; + int unknown = 0; + const unsigned long *data = record->data; - switch (record->tag) { + switch (record->tag) { case BI_AMIGA_MODEL: - amiga_model = *data; - break; + amiga_model = *data; + break; case BI_AMIGA_ECLOCK: - amiga_eclock = *data; - break; + amiga_eclock = *data; + break; case BI_AMIGA_CHIPSET: - amiga_chipset = *data; - break; + amiga_chipset = *data; + break; case BI_AMIGA_CHIP_SIZE: - amiga_chip_size = *(const int *)data; - break; + amiga_chip_size = *(const int *)data; + break; case BI_AMIGA_VBLANK: - amiga_vblank = *(const unsigned char *)data; - break; + amiga_vblank = *(const unsigned char *)data; + break; case BI_AMIGA_PSFREQ: - amiga_psfreq = *(const unsigned char *)data; - break; + amiga_psfreq = *(const unsigned char *)data; + break; case BI_AMIGA_AUTOCON: #ifdef CONFIG_ZORRO - if (zorro_num_autocon < ZORRO_NUM_AUTO) { - const struct ConfigDev *cd = (struct ConfigDev *)data; - struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++]; - dev->rom = cd->cd_Rom; - dev->slotaddr = cd->cd_SlotAddr; - dev->slotsize = cd->cd_SlotSize; - dev->resource.start = (unsigned long)cd->cd_BoardAddr; - dev->resource.end = dev->resource.start+cd->cd_BoardSize-1; - } else - printk("amiga_parse_bootinfo: too many AutoConfig devices\n"); + if (zorro_num_autocon < ZORRO_NUM_AUTO) { + const struct ConfigDev *cd = (struct ConfigDev *)data; + struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++]; + dev->rom = cd->cd_Rom; + dev->slotaddr = cd->cd_SlotAddr; + dev->slotsize = cd->cd_SlotSize; + dev->resource.start = (unsigned long)cd->cd_BoardAddr; + dev->resource.end = dev->resource.start + cd->cd_BoardSize - 1; + } else + printk("amiga_parse_bootinfo: too many AutoConfig devices\n"); #endif /* CONFIG_ZORRO */ - break; + break; case BI_AMIGA_SERPER: - /* serial port period: ignored here */ - break; + /* serial port period: ignored here */ + break; default: - unknown = 1; - } - return(unknown); + unknown = 1; + } + return unknown; } /* @@ -207,159 +201,159 @@ int amiga_parse_bootinfo(const struct bi_record *record) static void __init amiga_identify(void) { - /* Fill in some default values, if necessary */ - if (amiga_eclock == 0) - amiga_eclock = 709379; - - memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); - - printk("Amiga hardware found: "); - if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { - printk("[%s] ", amiga_models[amiga_model-AMI_500]); - strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); - } - - switch(amiga_model) { - case AMI_UNKNOWN: - goto Generic; - - case AMI_600: - case AMI_1200: - AMIGAHW_SET(A1200_IDE); - AMIGAHW_SET(PCMCIA); - case AMI_500: - case AMI_500PLUS: - case AMI_1000: - case AMI_2000: - case AMI_2500: - AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */ - goto Generic; - - case AMI_3000: - case AMI_3000T: - AMIGAHW_SET(AMBER_FF); - AMIGAHW_SET(MAGIC_REKICK); - /* fall through */ - case AMI_3000PLUS: - AMIGAHW_SET(A3000_SCSI); - AMIGAHW_SET(A3000_CLK); - AMIGAHW_SET(ZORRO3); - goto Generic; - - case AMI_4000T: - AMIGAHW_SET(A4000_SCSI); - /* fall through */ - case AMI_4000: - AMIGAHW_SET(A4000_IDE); - AMIGAHW_SET(A3000_CLK); - AMIGAHW_SET(ZORRO3); - goto Generic; - - case AMI_CDTV: - case AMI_CD32: - AMIGAHW_SET(CD_ROM); - AMIGAHW_SET(A2000_CLK); /* Is this correct? */ - goto Generic; - - Generic: - AMIGAHW_SET(AMI_VIDEO); - AMIGAHW_SET(AMI_BLITTER); - AMIGAHW_SET(AMI_AUDIO); - AMIGAHW_SET(AMI_FLOPPY); - AMIGAHW_SET(AMI_KEYBOARD); - AMIGAHW_SET(AMI_MOUSE); - AMIGAHW_SET(AMI_SERIAL); - AMIGAHW_SET(AMI_PARALLEL); - AMIGAHW_SET(CHIP_RAM); - AMIGAHW_SET(PAULA); - - switch(amiga_chipset) { - case CS_OCS: - case CS_ECS: - case CS_AGA: - switch (amiga_custom.deniseid & 0xf) { - case 0x0c: - AMIGAHW_SET(DENISE_HR); - break; - case 0x08: - AMIGAHW_SET(LISA); - break; - } - break; - default: - AMIGAHW_SET(DENISE); - break; - } - switch ((amiga_custom.vposr>>8) & 0x7f) { - case 0x00: - AMIGAHW_SET(AGNUS_PAL); - break; - case 0x10: - AMIGAHW_SET(AGNUS_NTSC); - break; - case 0x20: - case 0x21: - AMIGAHW_SET(AGNUS_HR_PAL); - break; - case 0x30: - case 0x31: - AMIGAHW_SET(AGNUS_HR_NTSC); - break; - case 0x22: - case 0x23: - AMIGAHW_SET(ALICE_PAL); - break; - case 0x32: - case 0x33: - AMIGAHW_SET(ALICE_NTSC); - break; - } - AMIGAHW_SET(ZORRO); - break; - - case AMI_DRACO: - panic("No support for Draco yet"); - - default: - panic("Unknown Amiga Model"); - } + /* Fill in some default values, if necessary */ + if (amiga_eclock == 0) + amiga_eclock = 709379; -#define AMIGAHW_ANNOUNCE(name, str) \ - if (AMIGAHW_PRESENT(name)) \ - printk(str) - - AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); - AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); - AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); - AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); - AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); - AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); - AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); - AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); - AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); - AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); - AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); - AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); - AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); - AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); - AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); - AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); - AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); - AMIGAHW_ANNOUNCE(PAULA, "PAULA "); - AMIGAHW_ANNOUNCE(DENISE, "DENISE "); - AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); - AMIGAHW_ANNOUNCE(LISA, "LISA "); - AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); - AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); - AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); - AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); - AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); - AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); - AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); - AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); - if (AMIGAHW_PRESENT(ZORRO)) - printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); - printk("\n"); + memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); + + printk("Amiga hardware found: "); + if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { + printk("[%s] ", amiga_models[amiga_model-AMI_500]); + strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); + } + + switch (amiga_model) { + case AMI_UNKNOWN: + goto Generic; + + case AMI_600: + case AMI_1200: + AMIGAHW_SET(A1200_IDE); + AMIGAHW_SET(PCMCIA); + case AMI_500: + case AMI_500PLUS: + case AMI_1000: + case AMI_2000: + case AMI_2500: + AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */ + goto Generic; + + case AMI_3000: + case AMI_3000T: + AMIGAHW_SET(AMBER_FF); + AMIGAHW_SET(MAGIC_REKICK); + /* fall through */ + case AMI_3000PLUS: + AMIGAHW_SET(A3000_SCSI); + AMIGAHW_SET(A3000_CLK); + AMIGAHW_SET(ZORRO3); + goto Generic; + + case AMI_4000T: + AMIGAHW_SET(A4000_SCSI); + /* fall through */ + case AMI_4000: + AMIGAHW_SET(A4000_IDE); + AMIGAHW_SET(A3000_CLK); + AMIGAHW_SET(ZORRO3); + goto Generic; + + case AMI_CDTV: + case AMI_CD32: + AMIGAHW_SET(CD_ROM); + AMIGAHW_SET(A2000_CLK); /* Is this correct? */ + goto Generic; + + Generic: + AMIGAHW_SET(AMI_VIDEO); + AMIGAHW_SET(AMI_BLITTER); + AMIGAHW_SET(AMI_AUDIO); + AMIGAHW_SET(AMI_FLOPPY); + AMIGAHW_SET(AMI_KEYBOARD); + AMIGAHW_SET(AMI_MOUSE); + AMIGAHW_SET(AMI_SERIAL); + AMIGAHW_SET(AMI_PARALLEL); + AMIGAHW_SET(CHIP_RAM); + AMIGAHW_SET(PAULA); + + switch (amiga_chipset) { + case CS_OCS: + case CS_ECS: + case CS_AGA: + switch (amiga_custom.deniseid & 0xf) { + case 0x0c: + AMIGAHW_SET(DENISE_HR); + break; + case 0x08: + AMIGAHW_SET(LISA); + break; + } + break; + default: + AMIGAHW_SET(DENISE); + break; + } + switch ((amiga_custom.vposr>>8) & 0x7f) { + case 0x00: + AMIGAHW_SET(AGNUS_PAL); + break; + case 0x10: + AMIGAHW_SET(AGNUS_NTSC); + break; + case 0x20: + case 0x21: + AMIGAHW_SET(AGNUS_HR_PAL); + break; + case 0x30: + case 0x31: + AMIGAHW_SET(AGNUS_HR_NTSC); + break; + case 0x22: + case 0x23: + AMIGAHW_SET(ALICE_PAL); + break; + case 0x32: + case 0x33: + AMIGAHW_SET(ALICE_NTSC); + break; + } + AMIGAHW_SET(ZORRO); + break; + + case AMI_DRACO: + panic("No support for Draco yet"); + + default: + panic("Unknown Amiga Model"); + } + +#define AMIGAHW_ANNOUNCE(name, str) \ + if (AMIGAHW_PRESENT(name)) \ + printk(str) + + AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); + AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); + AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); + AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); + AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); + AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); + AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); + AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); + AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); + AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); + AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); + AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); + AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); + AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); + AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); + AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); + AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); + AMIGAHW_ANNOUNCE(PAULA, "PAULA "); + AMIGAHW_ANNOUNCE(DENISE, "DENISE "); + AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); + AMIGAHW_ANNOUNCE(LISA, "LISA "); + AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); + AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); + AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); + AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); + AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); + AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); + AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); + AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); + if (AMIGAHW_PRESENT(ZORRO)) + printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); + printk("\n"); #undef AMIGAHW_ANNOUNCE } @@ -370,119 +364,105 @@ static void __init amiga_identify(void) void __init config_amiga(void) { - int i; - - amiga_debug_init(); - amiga_identify(); - - /* Yuk, we don't have PCI memory */ - iomem_resource.name = "Memory"; - for (i = 0; i < 4; i++) - request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); - - mach_sched_init = amiga_sched_init; - mach_init_IRQ = amiga_init_IRQ; - mach_get_model = amiga_get_model; - mach_get_hardware_list = amiga_get_hardware_list; - mach_gettimeoffset = amiga_gettimeoffset; - if (AMIGAHW_PRESENT(A3000_CLK)){ - mach_hwclk = a3000_hwclk; - rtc_resource.name = "A3000 RTC"; - request_resource(&iomem_resource, &rtc_resource); - } - else{ /* if (AMIGAHW_PRESENT(A2000_CLK)) */ - mach_hwclk = a2000_hwclk; - rtc_resource.name = "A2000 RTC"; - request_resource(&iomem_resource, &rtc_resource); - } - - mach_max_dma_address = 0xffffffff; /* - * default MAX_DMA=0xffffffff - * on all machines. If we don't - * do so, the SCSI code will not - * be able to allocate any mem - * for transfers, unless we are - * dealing with a Z2 mem only - * system. /Jes - */ - - mach_set_clock_mmss = amiga_set_clock_mmss; - mach_get_ss = amiga_get_ss; - mach_reset = amiga_reset; + int i; + + amiga_identify(); + + /* Yuk, we don't have PCI memory */ + iomem_resource.name = "Memory"; + for (i = 0; i < 4; i++) + request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); + + mach_sched_init = amiga_sched_init; + mach_init_IRQ = amiga_init_IRQ; + mach_get_model = amiga_get_model; + mach_get_hardware_list = amiga_get_hardware_list; + mach_gettimeoffset = amiga_gettimeoffset; + if (AMIGAHW_PRESENT(A3000_CLK)) { + mach_hwclk = a3000_hwclk; + rtc_resource.name = "A3000 RTC"; + request_resource(&iomem_resource, &rtc_resource); + } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ { + mach_hwclk = a2000_hwclk; + rtc_resource.name = "A2000 RTC"; + request_resource(&iomem_resource, &rtc_resource); + } + + /* + * default MAX_DMA=0xffffffff on all machines. If we don't do so, the SCSI + * code will not be able to allocate any mem for transfers, unless we are + * dealing with a Z2 mem only system. /Jes + */ + mach_max_dma_address = 0xffffffff; + + mach_set_clock_mmss = amiga_set_clock_mmss; + mach_get_ss = amiga_get_ss; + mach_reset = amiga_reset; #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) - mach_beep = amiga_mksound; + mach_beep = amiga_mksound; #endif #ifdef CONFIG_HEARTBEAT - mach_heartbeat = amiga_heartbeat; + mach_heartbeat = amiga_heartbeat; #endif - /* Fill in the clock values (based on the 700 kHz E-Clock) */ - amiga_masterclock = 40*amiga_eclock; /* 28 MHz */ - amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ - - /* clear all DMA bits */ - amiga_custom.dmacon = DMAF_ALL; - /* ensure that the DMA master bit is set */ - amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER; - - /* don't use Z2 RAM as system memory on Z3 capable machines */ - if (AMIGAHW_PRESENT(ZORRO3)) { - int i, j; - u32 disabled_z2mem = 0; - for (i = 0; i < m68k_num_memory; i++) - if (m68k_memory[i].addr < 16*1024*1024) { - if (i == 0) { - /* don't cut off the branch we're sitting on */ - printk("Warning: kernel runs in Zorro II memory\n"); - continue; + /* Fill in the clock values (based on the 700 kHz E-Clock) */ + amiga_masterclock = 40*amiga_eclock; /* 28 MHz */ + amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ + + /* clear all DMA bits */ + amiga_custom.dmacon = DMAF_ALL; + /* ensure that the DMA master bit is set */ + amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER; + + /* don't use Z2 RAM as system memory on Z3 capable machines */ + if (AMIGAHW_PRESENT(ZORRO3)) { + int i, j; + u32 disabled_z2mem = 0; + + for (i = 0; i < m68k_num_memory; i++) { + if (m68k_memory[i].addr < 16*1024*1024) { + if (i == 0) { + /* don't cut off the branch we're sitting on */ + printk("Warning: kernel runs in Zorro II memory\n"); + continue; + } + disabled_z2mem += m68k_memory[i].size; + m68k_num_memory--; + for (j = i; j < m68k_num_memory; j++) + m68k_memory[j] = m68k_memory[j+1]; + i--; + } + } + if (disabled_z2mem) + printk("%dK of Zorro II memory will not be used as system memory\n", + disabled_z2mem>>10); } - disabled_z2mem += m68k_memory[i].size; - m68k_num_memory--; - for (j = i; j < m68k_num_memory; j++) - m68k_memory[j] = m68k_memory[j+1]; - i--; - } - if (disabled_z2mem) - printk("%dK of Zorro II memory will not be used as system memory\n", - disabled_z2mem>>10); - } - - /* request all RAM */ - for (i = 0; i < m68k_num_memory; i++) { - ram_resource[i].name = - (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : - (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : - "16-bit Slow RAM"; - ram_resource[i].start = m68k_memory[i].addr; - ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; - request_resource(&iomem_resource, &ram_resource[i]); - } - - /* initialize chipram allocator */ - amiga_chip_init (); - - /* debugging using chipram */ - if (!strcmp( m68k_debug_device, "mem" )){ - if (!AMIGAHW_PRESENT(CHIP_RAM)) - printk("Warning: no chipram present for debugging\n"); - else { - amiga_savekmsg_init(); - amiga_console_driver.write = amiga_mem_console_write; - register_console(&amiga_console_driver); - } - } - - /* our beloved beeper */ - if (AMIGAHW_PRESENT(AMI_AUDIO)) - amiga_init_sound(); - - /* - * if it is an A3000, set the magic bit that forces - * a hard rekick - */ - if (AMIGAHW_PRESENT(MAGIC_REKICK)) - *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; + + /* request all RAM */ + for (i = 0; i < m68k_num_memory; i++) { + ram_resource[i].name = + (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : + (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : + "16-bit Slow RAM"; + ram_resource[i].start = m68k_memory[i].addr; + ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; + request_resource(&iomem_resource, &ram_resource[i]); + } + + /* initialize chipram allocator */ + amiga_chip_init(); + + /* our beloved beeper */ + if (AMIGAHW_PRESENT(AMI_AUDIO)) + amiga_init_sound(); + + /* + * if it is an A3000, set the magic bit that forces + * a hard rekick + */ + if (AMIGAHW_PRESENT(MAGIC_REKICK)) + *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; } static unsigned short jiffy_ticks; @@ -490,12 +470,12 @@ static unsigned short jiffy_ticks; static void __init amiga_sched_init(irq_handler_t timer_routine) { static struct resource sched_res = { - .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, + .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff, }; jiffy_ticks = (amiga_eclock+HZ/2)/HZ; if (request_resource(&mb_resources._ciab, &sched_res)) - printk("Cannot allocate ciab.ta{lo,hi}\n"); + printk("Cannot allocate ciab.ta{lo,hi}\n"); ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ ciab.talo = jiffy_ticks % 256; ciab.tahi = jiffy_ticks / 256; @@ -513,7 +493,7 @@ static void __init amiga_sched_init(irq_handler_t timer_routine) #define TICK_SIZE 10000 /* This is always executed with interrupts disabled. */ -static unsigned long amiga_gettimeoffset (void) +static unsigned long amiga_gettimeoffset(void) { unsigned short hi, lo, hi2; unsigned long ticks, offset = 0; @@ -585,15 +565,15 @@ static int a2000_hwclk(int op, struct rtc_time *t) tod_2000.cntrl1 = TOD2000_CNTRL1_HOLD; - while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) - { - tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; - udelay(70); - tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; + while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) { + tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; + udelay(70); + tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; } if (!cnt) - printk(KERN_INFO "hwclk: timed out waiting for RTC (0x%x)\n", tod_2000.cntrl1); + printk(KERN_INFO "hwclk: timed out waiting for RTC (0x%x)\n", + tod_2000.cntrl1); if (!op) { /* read */ t->tm_sec = tod_2000.second1 * 10 + tod_2000.second2; @@ -606,7 +586,7 @@ static int a2000_hwclk(int op, struct rtc_time *t) if (t->tm_year <= 69) t->tm_year += 100; - if (!(tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE)){ + if (!(tod_2000.cntrl3 & TOD2000_CNTRL3_24HMODE)) { if (!(tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour == 12) t->tm_hour = 0; else if ((tod_2000.hour1 & TOD2000_HOUR1_PM) && t->tm_hour != 12) @@ -642,7 +622,7 @@ static int a2000_hwclk(int op, struct rtc_time *t) return 0; } -static int amiga_set_clock_mmss (unsigned long nowtime) +static int amiga_set_clock_mmss(unsigned long nowtime) { short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60; @@ -660,8 +640,7 @@ static int amiga_set_clock_mmss (unsigned long nowtime) tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; - while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) - { + while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) { tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; udelay(70); tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; @@ -681,7 +660,7 @@ static int amiga_set_clock_mmss (unsigned long nowtime) return 0; } -static unsigned int amiga_get_ss( void ) +static unsigned int amiga_get_ss(void) { unsigned int s; @@ -695,71 +674,72 @@ static unsigned int amiga_get_ss( void ) return s; } -static NORET_TYPE void amiga_reset( void ) +static NORET_TYPE void amiga_reset(void) ATTRIB_NORET; -static void amiga_reset (void) +static void amiga_reset(void) { - unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); - unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); - - local_irq_disable(); - if (CPU_IS_040_OR_060) - /* Setup transparent translation registers for mapping - * of 16 MB kernel segment before disabling translation - */ - __asm__ __volatile__ - ("movel %0,%/d0\n\t" - "andl #0xff000000,%/d0\n\t" - "orw #0xe020,%/d0\n\t" /* map 16 MB, enable, cacheable */ - ".chip 68040\n\t" - "movec %%d0,%%itt0\n\t" - "movec %%d0,%%dtt0\n\t" - ".chip 68k\n\t" - "jmp %0@\n\t" - : /* no outputs */ - : "a" (jmp_addr040)); - else - /* for 680[23]0, just disable translation and jump to the physical - * address of the label - */ - __asm__ __volatile__ - ("pmove %/tc,%@\n\t" - "bclr #7,%@\n\t" - "pmove %@,%/tc\n\t" - "jmp %0@\n\t" - : /* no outputs */ - : "a" (jmp_addr)); - jmp_addr_label040: - /* disable translation on '040 now */ - __asm__ __volatile__ - ("moveq #0,%/d0\n\t" - ".chip 68040\n\t" - "movec %%d0,%%tc\n\t" /* disable MMU */ - ".chip 68k\n\t" - : /* no outputs */ - : /* no inputs */ - : "d0"); - - jmp_addr_label: - /* pickup reset address from AmigaOS ROM, reset devices and jump - * to reset address - */ - __asm__ __volatile__ - ("movew #0x2700,%/sr\n\t" - "leal 0x01000000,%/a0\n\t" - "subl %/a0@(-0x14),%/a0\n\t" - "movel %/a0@(4),%/a0\n\t" - "subql #2,%/a0\n\t" - "bra 1f\n\t" - /* align on a longword boundary */ - __ALIGN_STR "\n" - "1:\n\t" - "reset\n\t" - "jmp %/a0@" : /* Just that gcc scans it for % escapes */ ); - - for (;;); - + unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); + unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label); + + local_irq_disable(); + if (CPU_IS_040_OR_060) + /* Setup transparent translation registers for mapping + * of 16 MB kernel segment before disabling translation + */ + asm volatile ("\n" + " move.l %0,%%d0\n" + " and.l #0xff000000,%%d0\n" + " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ + " .chip 68040\n" + " movec %%d0,%%itt0\n" + " movec %%d0,%%dtt0\n" + " .chip 68k\n" + " jmp %0@\n" + : /* no outputs */ + : "a" (jmp_addr040) + : "d0"); + else + /* for 680[23]0, just disable translation and jump to the physical + * address of the label + */ + asm volatile ("\n" + " pmove %%tc,%@\n" + " bclr #7,%@\n" + " pmove %@,%%tc\n" + " jmp %0@\n" + : /* no outputs */ + : "a" (jmp_addr)); +jmp_addr_label040: + /* disable translation on '040 now */ + asm volatile ("\n" + " moveq #0,%%d0\n" + " .chip 68040\n" + " movec %%d0,%%tc\n" /* disable MMU */ + " .chip 68k\n" + : /* no outputs */ + : /* no inputs */ + : "d0"); + + jmp_addr_label: + /* pickup reset address from AmigaOS ROM, reset devices and jump + * to reset address + */ + asm volatile ("\n" + " move.w #0x2700,%sr\n" + " lea 0x01000000,%a0\n" + " sub.l %a0@(-0x14),%a0\n" + " move.l %a0@(4),%a0\n" + " subq.l #2,%a0\n" + " jra 1f\n" + /* align on a longword boundary */ + " " __ALIGN_STR "\n" + "1:\n" + " reset\n" + " jmp %a0@"); + + for (;;) + ; } @@ -773,11 +753,11 @@ static void amiga_reset (void) #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ struct savekmsg { - unsigned long magic1; /* SAVEKMSG_MAGIC1 */ - unsigned long magic2; /* SAVEKMSG_MAGIC2 */ - unsigned long magicptr; /* address of magic1 */ - unsigned long size; - char data[0]; + unsigned long magic1; /* SAVEKMSG_MAGIC1 */ + unsigned long magic2; /* SAVEKMSG_MAGIC2 */ + unsigned long magicptr; /* address of magic1 */ + unsigned long size; + char data[0]; }; static struct savekmsg *savekmsg; @@ -785,113 +765,132 @@ static struct savekmsg *savekmsg; static void amiga_mem_console_write(struct console *co, const char *s, unsigned int count) { - if (savekmsg->size+count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { - memcpy(savekmsg->data+savekmsg->size, s, count); - savekmsg->size += count; - } + if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { + memcpy(savekmsg->data + savekmsg->size, s, count); + savekmsg->size += count; + } } -static void amiga_savekmsg_init(void) +static int __init amiga_savekmsg_setup(char *arg) { - static struct resource debug_res = { .name = "Debug" }; + static struct resource debug_res = { .name = "Debug" }; + + if (!MACH_IS_AMIGA || strcmp(arg, "mem")) + goto done; + + if (!AMIGAHW_PRESENT(CHIP_RAM)) { + printk("Warning: no chipram present for debugging\n"); + goto done; + } - savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res); - savekmsg->magic1 = SAVEKMSG_MAGIC1; - savekmsg->magic2 = SAVEKMSG_MAGIC2; - savekmsg->magicptr = ZTWO_PADDR(savekmsg); - savekmsg->size = 0; + savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res); + savekmsg->magic1 = SAVEKMSG_MAGIC1; + savekmsg->magic2 = SAVEKMSG_MAGIC2; + savekmsg->magicptr = ZTWO_PADDR(savekmsg); + savekmsg->size = 0; + + amiga_console_driver.write = amiga_mem_console_write; + register_console(&amiga_console_driver); + +done: + return 0; } +early_param("debug", amiga_savekmsg_setup); + static void amiga_serial_putc(char c) { - amiga_custom.serdat = (unsigned char)c | 0x100; - while (!(amiga_custom.serdatr & 0x2000)) - ; + amiga_custom.serdat = (unsigned char)c | 0x100; + while (!(amiga_custom.serdatr & 0x2000)) + ; } void amiga_serial_console_write(struct console *co, const char *s, - unsigned int count) + unsigned int count) { - while (count--) { - if (*s == '\n') - amiga_serial_putc('\r'); - amiga_serial_putc(*s++); - } + while (count--) { + if (*s == '\n') + amiga_serial_putc('\r'); + amiga_serial_putc(*s++); + } } #ifdef CONFIG_SERIAL_CONSOLE void amiga_serial_puts(const char *s) { - amiga_serial_console_write(NULL, s, strlen(s)); + amiga_serial_console_write(NULL, s, strlen(s)); } int amiga_serial_console_wait_key(struct console *co) { - int ch; - - while (!(amiga_custom.intreqr & IF_RBF)) - barrier(); - ch = amiga_custom.serdatr & 0xff; - /* clear the interrupt, so that another character can be read */ - amiga_custom.intreq = IF_RBF; - return ch; + int ch; + + while (!(amiga_custom.intreqr & IF_RBF)) + barrier(); + ch = amiga_custom.serdatr & 0xff; + /* clear the interrupt, so that another character can be read */ + amiga_custom.intreq = IF_RBF; + return ch; } void amiga_serial_gets(struct console *co, char *s, int len) { - int ch, cnt = 0; - - while (1) { - ch = amiga_serial_console_wait_key(co); - - /* Check for backspace. */ - if (ch == 8 || ch == 127) { - if (cnt == 0) { - amiga_serial_putc('\007'); - continue; - } - cnt--; - amiga_serial_puts("\010 \010"); - continue; - } + int ch, cnt = 0; + + while (1) { + ch = amiga_serial_console_wait_key(co); + + /* Check for backspace. */ + if (ch == 8 || ch == 127) { + if (cnt == 0) { + amiga_serial_putc('\007'); + continue; + } + cnt--; + amiga_serial_puts("\010 \010"); + continue; + } - /* Check for enter. */ - if (ch == 10 || ch == 13) - break; + /* Check for enter. */ + if (ch == 10 || ch == 13) + break; - /* See if line is too long. */ - if (cnt >= len + 1) { - amiga_serial_putc(7); - cnt--; - continue; - } + /* See if line is too long. */ + if (cnt >= len + 1) { + amiga_serial_putc(7); + cnt--; + continue; + } - /* Store and echo character. */ - s[cnt++] = ch; - amiga_serial_putc(ch); - } - /* Print enter. */ - amiga_serial_puts("\r\n"); - s[cnt] = 0; + /* Store and echo character. */ + s[cnt++] = ch; + amiga_serial_putc(ch); + } + /* Print enter. */ + amiga_serial_puts("\r\n"); + s[cnt] = 0; } #endif -static void __init amiga_debug_init(void) +static int __init amiga_debug_setup(char *arg) { - if (!strcmp( m68k_debug_device, "ser" )) { + if (MACH_IS_AMIGA && !strcmp(arg, "ser")) { /* no initialization required (?) */ amiga_console_driver.write = amiga_serial_console_write; register_console(&amiga_console_driver); } + return 0; } +early_param("debug", amiga_debug_setup); + #ifdef CONFIG_HEARTBEAT static void amiga_heartbeat(int on) { - if (on) - ciaa.pra &= ~2; - else - ciaa.pra |= 2; + if (on) + ciaa.pra &= ~2; + else + ciaa.pra |= 2; } #endif @@ -901,81 +900,81 @@ static void amiga_heartbeat(int on) static void amiga_get_model(char *model) { - strcpy(model, amiga_model_name); + strcpy(model, amiga_model_name); } static int amiga_get_hardware_list(char *buffer) { - int len = 0; - - if (AMIGAHW_PRESENT(CHIP_RAM)) - len += sprintf(buffer+len, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); - len += sprintf(buffer+len, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", - amiga_psfreq, amiga_eclock); - if (AMIGAHW_PRESENT(AMI_VIDEO)) { - char *type; - switch(amiga_chipset) { - case CS_OCS: - type = "OCS"; - break; - case CS_ECS: - type = "ECS"; - break; - case CS_AGA: - type = "AGA"; - break; - default: - type = "Old or Unknown"; - break; + int len = 0; + + if (AMIGAHW_PRESENT(CHIP_RAM)) + len += sprintf(buffer+len, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); + len += sprintf(buffer+len, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", + amiga_psfreq, amiga_eclock); + if (AMIGAHW_PRESENT(AMI_VIDEO)) { + char *type; + switch (amiga_chipset) { + case CS_OCS: + type = "OCS"; + break; + case CS_ECS: + type = "ECS"; + break; + case CS_AGA: + type = "AGA"; + break; + default: + type = "Old or Unknown"; + break; + } + len += sprintf(buffer+len, "Graphics:\t%s\n", type); } - len += sprintf(buffer+len, "Graphics:\t%s\n", type); - } #define AMIGAHW_ANNOUNCE(name, str) \ - if (AMIGAHW_PRESENT(name)) \ - len += sprintf (buffer+len, "\t%s\n", str) - - len += sprintf (buffer + len, "Detected hardware:\n"); - - AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); - AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); - AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); - AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); - AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); - AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); - AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); - AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); - AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); - AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); - AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); - AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); - AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); - AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); - AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); - AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); - AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); - AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); - AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); - AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); - AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); - AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); - AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); - AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); - AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); - AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); - AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); - AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); - AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); + if (AMIGAHW_PRESENT(name)) \ + len += sprintf (buffer+len, "\t%s\n", str) + + len += sprintf (buffer + len, "Detected hardware:\n"); + + AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); + AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); + AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); + AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); + AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); + AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); + AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); + AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); + AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); + AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); + AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); + AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); + AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); + AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); + AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); + AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); + AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); + AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); + AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); + AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); + AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); + AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); + AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); + AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); + AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); + AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); + AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); + AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); + AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); #ifdef CONFIG_ZORRO - if (AMIGAHW_PRESENT(ZORRO)) - len += sprintf(buffer+len, "\tZorro II%s AutoConfig: %d Expansion " - "Device%s\n", - AMIGAHW_PRESENT(ZORRO3) ? "I" : "", - zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); + if (AMIGAHW_PRESENT(ZORRO)) + len += sprintf(buffer+len, "\tZorro II%s AutoConfig: %d Expansion " + "Device%s\n", + AMIGAHW_PRESENT(ZORRO3) ? "I" : "", + zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); #endif /* CONFIG_ZORRO */ #undef AMIGAHW_ANNOUNCE - return(len); + return len; } diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c index 4274af1..13bd41be 100644 --- a/arch/m68k/apollo/dn_ints.c +++ b/arch/m68k/apollo/dn_ints.c @@ -31,7 +31,7 @@ void apollo_irq_shutdown(unsigned int irq) static struct irq_controller apollo_irq_controller = { .name = "apollo", - .lock = SPIN_LOCK_UNLOCKED, + .lock = __SPIN_LOCK_UNLOCKED(apollo_irq_controller.lock), .startup = apollo_irq_startup, .shutdown = apollo_irq_shutdown, }; diff --git a/arch/m68k/atari/Makefile b/arch/m68k/atari/Makefile index 8cb6236..2cb8619 100644 --- a/arch/m68k/atari/Makefile +++ b/arch/m68k/atari/Makefile @@ -8,3 +8,4 @@ obj-y := config.o time.o debug.o ataints.o stdma.o \ ifeq ($(CONFIG_PCI),y) obj-$(CONFIG_HADES) += hades-pci.o endif +obj-$(CONFIG_ATARI_KBD_CORE) += atakeyb.o diff --git a/arch/m68k/atari/ataints.c b/arch/m68k/atari/ataints.c index 7f81264..b85ca22 100644 --- a/arch/m68k/atari/ataints.c +++ b/arch/m68k/atari/ataints.c @@ -339,7 +339,7 @@ static void atari_shutdown_irq(unsigned int irq) static struct irq_controller atari_irq_controller = { .name = "atari", - .lock = SPIN_LOCK_UNLOCKED, + .lock = __SPIN_LOCK_UNLOCKED(atari_irq_controller.lock), .startup = atari_startup_irq, .shutdown = atari_shutdown_irq, .enable = atari_enable_irq, diff --git a/arch/m68k/atari/atakeyb.c b/arch/m68k/atari/atakeyb.c new file mode 100644 index 0000000..1c29603 --- /dev/null +++ b/arch/m68k/atari/atakeyb.c @@ -0,0 +1,730 @@ +/* + * linux/atari/atakeyb.c + * + * Atari Keyboard driver for 680x0 Linux + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +/* + * Atari support by Robert de Vries + * enhanced by Bjoern Brauel and Roman Hodek + */ + +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/errno.h> +#include <linux/keyboard.h> +#include <linux/delay.h> +#include <linux/timer.h> +#include <linux/kd.h> +#include <linux/random.h> +#include <linux/init.h> +#include <linux/kbd_kern.h> + +#include <asm/atariints.h> +#include <asm/atarihw.h> +#include <asm/atarikb.h> +#include <asm/atari_joystick.h> +#include <asm/irq.h> + +static void atakeyb_rep(unsigned long ignore); +extern unsigned int keymap_count; + +/* Hook for MIDI serial driver */ +void (*atari_MIDI_interrupt_hook) (void); +/* Hook for mouse driver */ +void (*atari_mouse_interrupt_hook) (char *); +/* Hook for keyboard inputdev driver */ +void (*atari_input_keyboard_interrupt_hook) (unsigned char, char); +/* Hook for mouse inputdev driver */ +void (*atari_input_mouse_interrupt_hook) (char *); + +/* variables for IKBD self test: */ + +/* state: 0: off; >0: in progress; >1: 0xf1 received */ +static volatile int ikbd_self_test; +/* timestamp when last received a char */ +static volatile unsigned long self_test_last_rcv; +/* bitmap of keys reported as broken */ +static unsigned long broken_keys[128/(sizeof(unsigned long)*8)] = { 0, }; + +#define BREAK_MASK (0x80) + +/* + * ++roman: The following changes were applied manually: + * + * - The Alt (= Meta) key works in combination with Shift and + * Control, e.g. Alt+Shift+a sends Meta-A (0xc1), Alt+Control+A sends + * Meta-Ctrl-A (0x81) ... + * + * - The parentheses on the keypad send '(' and ')' with all + * modifiers (as would do e.g. keypad '+'), but they cannot be used as + * application keys (i.e. sending Esc O c). + * + * - HELP and UNDO are mapped to be F21 and F24, resp, that send the + * codes "\E[M" and "\E[P". (This is better than the old mapping to + * F11 and F12, because these codes are on Shift+F1/2 anyway.) This + * way, applications that allow their own keyboard mappings + * (e.g. tcsh, X Windows) can be configured to use them in the way + * the label suggests (providing help or undoing). + * + * - Console switching is done with Alt+Fx (consoles 1..10) and + * Shift+Alt+Fx (consoles 11..20). + * + * - The misc. special function implemented in the kernel are mapped + * to the following key combinations: + * + * ClrHome -> Home/Find + * Shift + ClrHome -> End/Select + * Shift + Up -> Page Up + * Shift + Down -> Page Down + * Alt + Help -> show system status + * Shift + Help -> show memory info + * Ctrl + Help -> show registers + * Ctrl + Alt + Del -> Reboot + * Alt + Undo -> switch to last console + * Shift + Undo -> send interrupt + * Alt + Insert -> stop/start output (same as ^S/^Q) + * Alt + Up -> Scroll back console (if implemented) + * Alt + Down -> Scroll forward console (if implemented) + * Alt + CapsLock -> NumLock + * + * ++Andreas: + * + * - Help mapped to K_HELP + * - Undo mapped to K_UNDO (= K_F246) + * - Keypad Left/Right Parenthesis mapped to new K_PPAREN[LR] + */ + +static u_short ataplain_map[NR_KEYS] __initdata = { + 0xf200, 0xf01b, 0xf031, 0xf032, 0xf033, 0xf034, 0xf035, 0xf036, + 0xf037, 0xf038, 0xf039, 0xf030, 0xf02d, 0xf03d, 0xf008, 0xf009, + 0xfb71, 0xfb77, 0xfb65, 0xfb72, 0xfb74, 0xfb79, 0xfb75, 0xfb69, + 0xfb6f, 0xfb70, 0xf05b, 0xf05d, 0xf201, 0xf702, 0xfb61, 0xfb73, + 0xfb64, 0xfb66, 0xfb67, 0xfb68, 0xfb6a, 0xfb6b, 0xfb6c, 0xf03b, + 0xf027, 0xf060, 0xf700, 0xf05c, 0xfb7a, 0xfb78, 0xfb63, 0xfb76, + 0xfb62, 0xfb6e, 0xfb6d, 0xf02c, 0xf02e, 0xf02f, 0xf700, 0xf200, + 0xf703, 0xf020, 0xf207, 0xf100, 0xf101, 0xf102, 0xf103, 0xf104, + 0xf105, 0xf106, 0xf107, 0xf108, 0xf109, 0xf200, 0xf200, 0xf114, + 0xf603, 0xf200, 0xf30b, 0xf601, 0xf200, 0xf602, 0xf30a, 0xf200, + 0xf600, 0xf200, 0xf115, 0xf07f, 0xf200, 0xf200, 0xf200, 0xf200, + 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, + 0xf200, 0xf1ff, 0xf11b, 0xf312, 0xf313, 0xf30d, 0xf30c, 0xf307, + 0xf308, 0xf309, 0xf304, 0xf305, 0xf306, 0xf301, 0xf302, 0xf303, + 0xf300, 0xf310, 0xf30e, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, + 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200 +}; + +typedef enum kb_state_t { + KEYBOARD, AMOUSE, RMOUSE, JOYSTICK, CLOCK, RESYNC +} KB_STATE_T; + +#define IS_SYNC_CODE(sc) ((sc) >= 0x04 && (sc) <= 0xfb) + +typedef struct keyboard_state { + unsigned char buf[6]; + int len; + KB_STATE_T state; +} KEYBOARD_STATE; + +KEYBOARD_STATE kb_state; + +#define DEFAULT_KEYB_REP_DELAY (HZ/4) +#define DEFAULT_KEYB_REP_RATE (HZ/25) + +/* These could be settable by some ioctl() in future... */ +static unsigned int key_repeat_delay = DEFAULT_KEYB_REP_DELAY; +static unsigned int key_repeat_rate = DEFAULT_KEYB_REP_RATE; + +static unsigned char rep_scancode; +static struct timer_list atakeyb_rep_timer = { + .function = atakeyb_rep, +}; + +static void atakeyb_rep(unsigned long ignore) +{ + /* Disable keyboard for the time we call handle_scancode(), else a race + * in the keyboard tty queue may happen */ + atari_disable_irq(IRQ_MFP_ACIA); + del_timer(&atakeyb_rep_timer); + + /* A keyboard int may have come in before we disabled the irq, so + * double-check whether rep_scancode is still != 0 */ + if (rep_scancode) { + init_timer(&atakeyb_rep_timer); + atakeyb_rep_timer.expires = jiffies + key_repeat_rate; + add_timer(&atakeyb_rep_timer); + + //handle_scancode(rep_scancode, 1); + if (atari_input_keyboard_interrupt_hook) + atari_input_keyboard_interrupt_hook(rep_scancode, 1); + } + + atari_enable_irq(IRQ_MFP_ACIA); +} + + +/* ++roman: If a keyboard overrun happened, we can't tell in general how much + * bytes have been lost and in which state of the packet structure we are now. + * This usually causes keyboards bytes to be interpreted as mouse movements + * and vice versa, which is very annoying. It seems better to throw away some + * bytes (that are usually mouse bytes) than to misinterpret them. Therefor I + * introduced the RESYNC state for IKBD data. In this state, the bytes up to + * one that really looks like a key event (0x04..0xf2) or the start of a mouse + * packet (0xf8..0xfb) are thrown away, but at most 2 bytes. This at least + * speeds up the resynchronization of the event structure, even if maybe a + * mouse movement is lost. However, nothing is perfect. For bytes 0x01..0x03, + * it's really hard to decide whether they're mouse or keyboard bytes. Since + * overruns usually occur when moving the Atari mouse rapidly, they're seen as + * mouse bytes here. If this is wrong, only a make code of the keyboard gets + * lost, which isn't too bad. Loosing a break code would be disastrous, + * because then the keyboard repeat strikes... + */ + +static irqreturn_t atari_keyboard_interrupt(int irq, void *dummy) +{ + u_char acia_stat; + int scancode; + int break_flag; + +repeat: + if (acia.mid_ctrl & ACIA_IRQ) + if (atari_MIDI_interrupt_hook) + atari_MIDI_interrupt_hook(); + acia_stat = acia.key_ctrl; + /* check out if the interrupt came from this ACIA */ + if (!((acia_stat | acia.mid_ctrl) & ACIA_IRQ)) + return IRQ_HANDLED; + + if (acia_stat & ACIA_OVRN) { + /* a very fast typist or a slow system, give a warning */ + /* ...happens often if interrupts were disabled for too long */ + printk(KERN_DEBUG "Keyboard overrun\n"); + scancode = acia.key_data; + /* Turn off autorepeating in case a break code has been lost */ + del_timer(&atakeyb_rep_timer); + rep_scancode = 0; + if (ikbd_self_test) + /* During self test, don't do resyncing, just process the code */ + goto interpret_scancode; + else if (IS_SYNC_CODE(scancode)) { + /* This code seem already to be the start of a new packet or a + * single scancode */ + kb_state.state = KEYBOARD; + goto interpret_scancode; + } else { + /* Go to RESYNC state and skip this byte */ + kb_state.state = RESYNC; + kb_state.len = 1; /* skip max. 1 another byte */ + goto repeat; + } + } + + if (acia_stat & ACIA_RDRF) { + /* received a character */ + scancode = acia.key_data; /* get it or reset the ACIA, I'll get it! */ + tasklet_schedule(&keyboard_tasklet); + interpret_scancode: + switch (kb_state.state) { + case KEYBOARD: + switch (scancode) { + case 0xF7: + kb_state.state = AMOUSE; + kb_state.len = 0; + break; + + case 0xF8: + case 0xF9: + case 0xFA: + case 0xFB: + kb_state.state = RMOUSE; + kb_state.len = 1; + kb_state.buf[0] = scancode; + break; + + case 0xFC: + kb_state.state = CLOCK; + kb_state.len = 0; + break; + + case 0xFE: + case 0xFF: + kb_state.state = JOYSTICK; + kb_state.len = 1; + kb_state.buf[0] = scancode; + break; + + case 0xF1: + /* during self-test, note that 0xf1 received */ + if (ikbd_self_test) { + ++ikbd_self_test; + self_test_last_rcv = jiffies; + break; + } + /* FALL THROUGH */ + + default: + break_flag = scancode & BREAK_MASK; + scancode &= ~BREAK_MASK; + if (ikbd_self_test) { + /* Scancodes sent during the self-test stand for broken + * keys (keys being down). The code *should* be a break + * code, but nevertheless some AT keyboard interfaces send + * make codes instead. Therefore, simply ignore + * break_flag... + */ + int keyval = plain_map[scancode], keytyp; + + set_bit(scancode, broken_keys); + self_test_last_rcv = jiffies; + keyval = plain_map[scancode]; + keytyp = KTYP(keyval) - 0xf0; + keyval = KVAL(keyval); + + printk(KERN_WARNING "Key with scancode %d ", scancode); + if (keytyp == KT_LATIN || keytyp == KT_LETTER) { + if (keyval < ' ') + printk("('^%c') ", keyval + '@'); + else + printk("('%c') ", keyval); + } + printk("is broken -- will be ignored.\n"); + break; + } else if (test_bit(scancode, broken_keys)) + break; + +#if 0 // FIXME; hangs at boot + if (break_flag) { + del_timer(&atakeyb_rep_timer); + rep_scancode = 0; + } else { + del_timer(&atakeyb_rep_timer); + rep_scancode = scancode; + atakeyb_rep_timer.expires = jiffies + key_repeat_delay; + add_timer(&atakeyb_rep_timer); + } +#endif + + // handle_scancode(scancode, !break_flag); + if (atari_input_keyboard_interrupt_hook) + atari_input_keyboard_interrupt_hook((unsigned char)scancode, !break_flag); + break; + } + break; + + case AMOUSE: + kb_state.buf[kb_state.len++] = scancode; + if (kb_state.len == 5) { + kb_state.state = KEYBOARD; + /* not yet used */ + /* wake up someone waiting for this */ + } + break; + + case RMOUSE: + kb_state.buf[kb_state.len++] = scancode; + if (kb_state.len == 3) { + kb_state.state = KEYBOARD; + if (atari_mouse_interrupt_hook) + atari_mouse_interrupt_hook(kb_state.buf); + } + break; + + case JOYSTICK: + kb_state.buf[1] = scancode; + kb_state.state = KEYBOARD; +#ifdef FIXED_ATARI_JOYSTICK + atari_joystick_interrupt(kb_state.buf); +#endif + break; + + case CLOCK: + kb_state.buf[kb_state.len++] = scancode; + if (kb_state.len == 6) { + kb_state.state = KEYBOARD; + /* wake up someone waiting for this. + But will this ever be used, as Linux keeps its own time. + Perhaps for synchronization purposes? */ + /* wake_up_interruptible(&clock_wait); */ + } + break; + + case RESYNC: + if (kb_state.len <= 0 || IS_SYNC_CODE(scancode)) { + kb_state.state = KEYBOARD; + goto interpret_scancode; + } + kb_state.len--; + break; + } + } + +#if 0 + if (acia_stat & ACIA_CTS) + /* cannot happen */; +#endif + + if (acia_stat & (ACIA_FE | ACIA_PE)) { + printk("Error in keyboard communication\n"); + } + + /* handle_scancode() can take a lot of time, so check again if + * some character arrived + */ + goto repeat; +} + +/* + * I write to the keyboard without using interrupts, I poll instead. + * This takes for the maximum length string allowed (7) at 7812.5 baud + * 8 data 1 start 1 stop bit: 9.0 ms + * If this takes too long for normal operation, interrupt driven writing + * is the solution. (I made a feeble attempt in that direction but I + * kept it simple for now.) + */ +void ikbd_write(const char *str, int len) +{ + u_char acia_stat; + + if ((len < 1) || (len > 7)) + panic("ikbd: maximum string length exceeded"); + while (len) { + acia_stat = acia.key_ctrl; + if (acia_stat & ACIA_TDRE) { + acia.key_data = *str++; + len--; + } + } +} + +/* Reset (without touching the clock) */ +void ikbd_reset(void) +{ + static const char cmd[2] = { 0x80, 0x01 }; + + ikbd_write(cmd, 2); + + /* + * if all's well code 0xF1 is returned, else the break codes of + * all keys making contact + */ +} + +/* Set mouse button action */ +void ikbd_mouse_button_action(int mode) +{ + char cmd[2] = { 0x07, mode }; + + ikbd_write(cmd, 2); +} + +/* Set relative mouse position reporting */ +void ikbd_mouse_rel_pos(void) +{ + static const char cmd[1] = { 0x08 }; + + ikbd_write(cmd, 1); +} + +/* Set absolute mouse position reporting */ +void ikbd_mouse_abs_pos(int xmax, int ymax) +{ + char cmd[5] = { 0x09, xmax>>8, xmax&0xFF, ymax>>8, ymax&0xFF }; + + ikbd_write(cmd, 5); +} + +/* Set mouse keycode mode */ +void ikbd_mouse_kbd_mode(int dx, int dy) +{ + char cmd[3] = { 0x0A, dx, dy }; + + ikbd_write(cmd, 3); +} + +/* Set mouse threshold */ +void ikbd_mouse_thresh(int x, int y) +{ + char cmd[3] = { 0x0B, x, y }; + + ikbd_write(cmd, 3); +} + +/* Set mouse scale */ +void ikbd_mouse_scale(int x, int y) +{ + char cmd[3] = { 0x0C, x, y }; + + ikbd_write(cmd, 3); +} + +/* Interrogate mouse position */ +void ikbd_mouse_pos_get(int *x, int *y) +{ + static const char cmd[1] = { 0x0D }; + + ikbd_write(cmd, 1); + + /* wait for returning bytes */ +} + +/* Load mouse position */ +void ikbd_mouse_pos_set(int x, int y) +{ + char cmd[6] = { 0x0E, 0x00, x>>8, x&0xFF, y>>8, y&0xFF }; + + ikbd_write(cmd, 6); +} + +/* Set Y=0 at bottom */ +void ikbd_mouse_y0_bot(void) +{ + static const char cmd[1] = { 0x0F }; + + ikbd_write(cmd, 1); +} + +/* Set Y=0 at top */ +void ikbd_mouse_y0_top(void) +{ + static const char cmd[1] = { 0x10 }; + + ikbd_write(cmd, 1); +} + +/* Resume */ +void ikbd_resume(void) +{ + static const char cmd[1] = { 0x11 }; + + ikbd_write(cmd, 1); +} + +/* Disable mouse */ +void ikbd_mouse_disable(void) +{ + static const char cmd[1] = { 0x12 }; + + ikbd_write(cmd, 1); +} + +/* Pause output */ +void ikbd_pause(void) +{ + static const char cmd[1] = { 0x13 }; + + ikbd_write(cmd, 1); +} + +/* Set joystick event reporting */ +void ikbd_joystick_event_on(void) +{ + static const char cmd[1] = { 0x14 }; + + ikbd_write(cmd, 1); +} + +/* Set joystick interrogation mode */ +void ikbd_joystick_event_off(void) +{ + static const char cmd[1] = { 0x15 }; + + ikbd_write(cmd, 1); +} + +/* Joystick interrogation */ +void ikbd_joystick_get_state(void) +{ + static const char cmd[1] = { 0x16 }; + + ikbd_write(cmd, 1); +} + +#if 0 +/* This disables all other ikbd activities !!!! */ +/* Set joystick monitoring */ +void ikbd_joystick_monitor(int rate) +{ + static const char cmd[2] = { 0x17, rate }; + + ikbd_write(cmd, 2); + + kb_state.state = JOYSTICK_MONITOR; +} +#endif + +/* some joystick routines not in yet (0x18-0x19) */ + +/* Disable joysticks */ +void ikbd_joystick_disable(void) +{ + static const char cmd[1] = { 0x1A }; + + ikbd_write(cmd, 1); +} + +/* Time-of-day clock set */ +void ikbd_clock_set(int year, int month, int day, int hour, int minute, int second) +{ + char cmd[7] = { 0x1B, year, month, day, hour, minute, second }; + + ikbd_write(cmd, 7); +} + +/* Interrogate time-of-day clock */ +void ikbd_clock_get(int *year, int *month, int *day, int *hour, int *minute, int second) +{ + static const char cmd[1] = { 0x1C }; + + ikbd_write(cmd, 1); +} + +/* Memory load */ +void ikbd_mem_write(int address, int size, char *data) +{ + panic("Attempt to write data into keyboard memory"); +} + +/* Memory read */ +void ikbd_mem_read(int address, char data[6]) +{ + char cmd[3] = { 0x21, address>>8, address&0xFF }; + + ikbd_write(cmd, 3); + + /* receive data and put it in data */ +} + +/* Controller execute */ +void ikbd_exec(int address) +{ + char cmd[3] = { 0x22, address>>8, address&0xFF }; + + ikbd_write(cmd, 3); +} + +/* Status inquiries (0x87-0x9A) not yet implemented */ + +/* Set the state of the caps lock led. */ +void atari_kbd_leds(unsigned int leds) +{ + char cmd[6] = {32, 0, 4, 1, 254 + ((leds & 4) != 0), 0}; + + ikbd_write(cmd, 6); +} + +/* + * The original code sometimes left the interrupt line of + * the ACIAs low forever. I hope, it is fixed now. + * + * Martin Rogge, 20 Aug 1995 + */ + +static int atari_keyb_done = 0; + +int __init atari_keyb_init(void) +{ + if (atari_keyb_done) + return 0; + + /* setup key map */ + memcpy(key_maps[0], ataplain_map, sizeof(plain_map)); + + kb_state.state = KEYBOARD; + kb_state.len = 0; + + request_irq(IRQ_MFP_ACIA, atari_keyboard_interrupt, IRQ_TYPE_SLOW, + "keyboard/mouse/MIDI", atari_keyboard_interrupt); + + atari_turnoff_irq(IRQ_MFP_ACIA); + do { + /* reset IKBD ACIA */ + acia.key_ctrl = ACIA_RESET | + (atari_switches & ATARI_SWITCH_IKBD) ? ACIA_RHTID : 0; + (void)acia.key_ctrl; + (void)acia.key_data; + + /* reset MIDI ACIA */ + acia.mid_ctrl = ACIA_RESET | + (atari_switches & ATARI_SWITCH_MIDI) ? ACIA_RHTID : 0; + (void)acia.mid_ctrl; + (void)acia.mid_data; + + /* divide 500kHz by 64 gives 7812.5 baud */ + /* 8 data no parity 1 start 1 stop bit */ + /* receive interrupt enabled */ + /* RTS low (except if switch selected), transmit interrupt disabled */ + acia.key_ctrl = (ACIA_DIV64|ACIA_D8N1S|ACIA_RIE) | + ((atari_switches & ATARI_SWITCH_IKBD) ? + ACIA_RHTID : ACIA_RLTID); + + acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | + (atari_switches & ATARI_SWITCH_MIDI) ? ACIA_RHTID : 0; + + /* make sure the interrupt line is up */ + } while ((mfp.par_dt_reg & 0x10) == 0); + + /* enable ACIA Interrupts */ + mfp.active_edge &= ~0x10; + atari_turnon_irq(IRQ_MFP_ACIA); + + ikbd_self_test = 1; + ikbd_reset(); + /* wait for a period of inactivity (here: 0.25s), then assume the IKBD's + * self-test is finished */ + self_test_last_rcv = jiffies; + while (time_before(jiffies, self_test_last_rcv + HZ/4)) + barrier(); + /* if not incremented: no 0xf1 received */ + if (ikbd_self_test == 1) + printk(KERN_ERR "WARNING: keyboard self test failed!\n"); + ikbd_self_test = 0; + + ikbd_mouse_disable(); + ikbd_joystick_disable(); + +#ifdef FIXED_ATARI_JOYSTICK + atari_joystick_init(); +#endif + + // flag init done + atari_keyb_done = 1; + return 0; +} + + +int atari_kbdrate(struct kbd_repeat *k) +{ + if (k->delay > 0) { + /* convert from msec to jiffies */ + key_repeat_delay = (k->delay * HZ + 500) / 1000; + if (key_repeat_delay < 1) + key_repeat_delay = 1; + } + if (k->period > 0) { + key_repeat_rate = (k->period * HZ + 500) / 1000; + if (key_repeat_rate < 1) + key_repeat_rate = 1; + } + + k->delay = key_repeat_delay * 1000 / HZ; + k->period = key_repeat_rate * 1000 / HZ; + + return 0; +} + +int atari_kbd_translate(unsigned char keycode, unsigned char *keycodep, char raw_mode) +{ +#ifdef CONFIG_MAGIC_SYSRQ + /* ALT+HELP pressed? */ + if ((keycode == 98) && ((shift_state & 0xff) == 8)) + *keycodep = 0xff; + else +#endif + *keycodep = keycode; + return 1; +} diff --git a/arch/m68k/atari/atasound.h b/arch/m68k/atari/atasound.h deleted file mode 100644 index 1362762..0000000 --- a/arch/m68k/atari/atasound.h +++ /dev/null @@ -1,33 +0,0 @@ -/* - * Minor numbers for the sound driver. - * - * Unfortunately Creative called the codec chip of SB as a DSP. For this - * reason the /dev/dsp is reserved for digitized audio use. There is a - * device for true DSP processors but it will be called something else. - * In v3.0 it's /dev/sndproc but this could be a temporary solution. - */ - -#define SND_NDEVS 256 /* Number of supported devices */ -#define SND_DEV_CTL 0 /* Control port /dev/mixer */ -#define SND_DEV_SEQ 1 /* Sequencer output /dev/sequencer (FM - synthesizer and MIDI output) */ -#define SND_DEV_MIDIN 2 /* Raw midi access */ -#define SND_DEV_DSP 3 /* Digitized voice /dev/dsp */ -#define SND_DEV_AUDIO 4 /* Sparc compatible /dev/audio */ -#define SND_DEV_DSP16 5 /* Like /dev/dsp but 16 bits/sample */ -#define SND_DEV_STATUS 6 /* /dev/sndstat */ -/* #7 not in use now. Was in 2.4. Free for use after v3.0. */ -#define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */ -#define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */ -#define SND_DEV_PSS SND_DEV_SNDPROC - -#define DSP_DEFAULT_SPEED 8000 - -#define ON 1 -#define OFF 0 - -#define MAX_AUDIO_DEV 5 -#define MAX_MIXER_DEV 2 -#define MAX_SYNTH_DEV 3 -#define MAX_MIDI_DEV 6 -#define MAX_TIMER_DEV 3 diff --git a/arch/m68k/atari/config.c b/arch/m68k/atari/config.c index ca5cd43..e40e5dc 100644 --- a/arch/m68k/atari/config.c +++ b/arch/m68k/atari/config.c @@ -50,70 +50,25 @@ int atari_dont_touch_floppy_select; int atari_rtc_year_offset; /* local function prototypes */ -static void atari_reset( void ); +static void atari_reset(void); static void atari_get_model(char *model); static int atari_get_hardware_list(char *buffer); /* atari specific irq functions */ extern void atari_init_IRQ (void); -extern void atari_mksound( unsigned int count, unsigned int ticks ); +extern void atari_mksound(unsigned int count, unsigned int ticks); #ifdef CONFIG_HEARTBEAT -static void atari_heartbeat( int on ); +static void atari_heartbeat(int on); #endif /* atari specific timer functions (in time.c) */ -extern void atari_sched_init(irq_handler_t ); +extern void atari_sched_init(irq_handler_t); extern unsigned long atari_gettimeoffset (void); extern int atari_mste_hwclk (int, struct rtc_time *); extern int atari_tt_hwclk (int, struct rtc_time *); extern int atari_mste_set_clock_mmss (unsigned long); extern int atari_tt_set_clock_mmss (unsigned long); -/* atari specific debug functions (in debug.c) */ -extern void atari_debug_init(void); - - -/* I've moved hwreg_present() and hwreg_present_bywrite() out into - * mm/hwtest.c, to avoid having multiple copies of the same routine - * in the kernel [I wanted them in hp300 and they were already used - * in the nubus code. NB: I don't have an Atari so this might (just - * conceivably) break something. - * I've preserved the #if 0 version of hwreg_present_bywrite() here - * for posterity. - * -- Peter Maydell <pmaydell@chiark.greenend.org.uk>, 05/1998 - */ - -#if 0 -static int __init -hwreg_present_bywrite(volatile void *regp, unsigned char val) -{ - int ret; - long save_sp, save_vbr; - static long tmp_vectors[3] = { [2] = (long)&&after_test }; - - __asm__ __volatile__ - ( "movec %/vbr,%2\n\t" /* save vbr value */ - "movec %4,%/vbr\n\t" /* set up temporary vectors */ - "movel %/sp,%1\n\t" /* save sp */ - "moveq #0,%0\n\t" /* assume not present */ - "moveb %5,%3@\n\t" /* write the hardware reg */ - "cmpb %3@,%5\n\t" /* compare it */ - "seq %0" /* comes here only if reg */ - /* is present */ - : "=d&" (ret), "=r&" (save_sp), "=r&" (save_vbr) - : "a" (regp), "r" (tmp_vectors), "d" (val) - ); - after_test: - __asm__ __volatile__ - ( "movel %0,%/sp\n\t" /* restore sp */ - "movec %1,%/vbr" /* restore vbr */ - : : "r" (save_sp), "r" (save_vbr) : "sp" - ); - - return( ret ); -} -#endif - /* ++roman: This is a more elaborate test for an SCC chip, since the plain * Medusa board generates DTACK at the SCC's standard addresses, but a SCC @@ -123,26 +78,34 @@ hwreg_present_bywrite(volatile void *regp, unsigned char val) * should be readable without trouble (from channel A!). */ -static int __init scc_test( volatile char *ctla ) +static int __init scc_test(volatile char *ctla) { - if (!hwreg_present( ctla )) - return( 0 ); + if (!hwreg_present(ctla)) + return 0; MFPDELAY(); - *ctla = 2; MFPDELAY(); - *ctla = 0x40; MFPDELAY(); + *ctla = 2; + MFPDELAY(); + *ctla = 0x40; + MFPDELAY(); - *ctla = 2; MFPDELAY(); - if (*ctla != 0x40) return( 0 ); + *ctla = 2; + MFPDELAY(); + if (*ctla != 0x40) + return 0; MFPDELAY(); - *ctla = 2; MFPDELAY(); - *ctla = 0x60; MFPDELAY(); + *ctla = 2; + MFPDELAY(); + *ctla = 0x60; + MFPDELAY(); - *ctla = 2; MFPDELAY(); - if (*ctla != 0x60) return( 0 ); + *ctla = 2; + MFPDELAY(); + if (*ctla != 0x60) + return 0; - return( 1 ); + return 1; } @@ -152,61 +115,66 @@ static int __init scc_test( volatile char *ctla ) int __init atari_parse_bootinfo(const struct bi_record *record) { - int unknown = 0; - const u_long *data = record->data; + int unknown = 0; + const u_long *data = record->data; - switch (record->tag) { + switch (record->tag) { case BI_ATARI_MCH_COOKIE: - atari_mch_cookie = *data; - break; + atari_mch_cookie = *data; + break; case BI_ATARI_MCH_TYPE: - atari_mch_type = *data; - break; + atari_mch_type = *data; + break; default: - unknown = 1; - } - return(unknown); + unknown = 1; + break; + } + return unknown; } /* Parse the Atari-specific switches= option. */ -void __init atari_switches_setup( const char *str, unsigned len ) +static int __init atari_switches_setup(char *str) { - char switches[len+1]; - char *p; - int ovsc_shift; - char *args = switches; - - /* copy string to local array, strsep works destructively... */ - strlcpy( switches, str, sizeof(switches) ); - atari_switches = 0; - - /* parse the options */ - while ((p = strsep(&args, ",")) != NULL) { - if (!*p) continue; - ovsc_shift = 0; - if (strncmp( p, "ov_", 3 ) == 0) { - p += 3; - ovsc_shift = ATARI_SWITCH_OVSC_SHIFT; - } - - if (strcmp( p, "ikbd" ) == 0) { - /* RTS line of IKBD ACIA */ - atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift; - } - else if (strcmp( p, "midi" ) == 0) { - /* RTS line of MIDI ACIA */ - atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift; + char switches[strlen(str) + 1]; + char *p; + int ovsc_shift; + char *args = switches; + + if (!MACH_IS_ATARI) + return 0; + + /* copy string to local array, strsep works destructively... */ + strcpy(switches, str); + atari_switches = 0; + + /* parse the options */ + while ((p = strsep(&args, ",")) != NULL) { + if (!*p) + continue; + ovsc_shift = 0; + if (strncmp(p, "ov_", 3) == 0) { + p += 3; + ovsc_shift = ATARI_SWITCH_OVSC_SHIFT; + } + + if (strcmp(p, "ikbd") == 0) { + /* RTS line of IKBD ACIA */ + atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift; + } else if (strcmp(p, "midi") == 0) { + /* RTS line of MIDI ACIA */ + atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift; + } else if (strcmp(p, "snd6") == 0) { + atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift; + } else if (strcmp(p, "snd7") == 0) { + atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift; + } } - else if (strcmp( p, "snd6" ) == 0) { - atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift; - } - else if (strcmp( p, "snd7" ) == 0) { - atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift; - } - } + return 0; } +early_param("switches", atari_switches_setup); + /* * Setup the Atari configuration info @@ -214,284 +182,281 @@ void __init atari_switches_setup( const char *str, unsigned len ) void __init config_atari(void) { - unsigned short tos_version; + unsigned short tos_version; - memset(&atari_hw_present, 0, sizeof(atari_hw_present)); + memset(&atari_hw_present, 0, sizeof(atari_hw_present)); - atari_debug_init(); + /* Change size of I/O space from 64KB to 4GB. */ + ioport_resource.end = 0xFFFFFFFF; - ioport_resource.end = 0xFFFFFFFF; /* Change size of I/O space from 64KB - to 4GB. */ - - mach_sched_init = atari_sched_init; - mach_init_IRQ = atari_init_IRQ; - mach_get_model = atari_get_model; - mach_get_hardware_list = atari_get_hardware_list; - mach_gettimeoffset = atari_gettimeoffset; - mach_reset = atari_reset; - mach_max_dma_address = 0xffffff; + mach_sched_init = atari_sched_init; + mach_init_IRQ = atari_init_IRQ; + mach_get_model = atari_get_model; + mach_get_hardware_list = atari_get_hardware_list; + mach_gettimeoffset = atari_gettimeoffset; + mach_reset = atari_reset; + mach_max_dma_address = 0xffffff; #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) - mach_beep = atari_mksound; + mach_beep = atari_mksound; #endif #ifdef CONFIG_HEARTBEAT - mach_heartbeat = atari_heartbeat; + mach_heartbeat = atari_heartbeat; #endif - /* Set switches as requested by the user */ - if (atari_switches & ATARI_SWITCH_IKBD) - acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID; - if (atari_switches & ATARI_SWITCH_MIDI) - acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; - if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) { - sound_ym.rd_data_reg_sel = 14; - sound_ym.wd_data = sound_ym.rd_data_reg_sel | - ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) | - ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0); - } - - /* ++bjoern: - * Determine hardware present - */ + /* Set switches as requested by the user */ + if (atari_switches & ATARI_SWITCH_IKBD) + acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID; + if (atari_switches & ATARI_SWITCH_MIDI) + acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; + if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) { + sound_ym.rd_data_reg_sel = 14; + sound_ym.wd_data = sound_ym.rd_data_reg_sel | + ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) | + ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0); + } - printk( "Atari hardware found: " ); - if (MACH_IS_MEDUSA || MACH_IS_HADES) { - /* There's no Atari video hardware on the Medusa, but all the - * addresses below generate a DTACK so no bus error occurs! */ - } - else if (hwreg_present( f030_xreg )) { - ATARIHW_SET(VIDEL_SHIFTER); - printk( "VIDEL " ); - /* This is a temporary hack: If there is Falcon video - * hardware, we assume that the ST-DMA serves SCSI instead of - * ACSI. In the future, there should be a better method for - * this... - */ - ATARIHW_SET(ST_SCSI); - printk( "STDMA-SCSI " ); - } - else if (hwreg_present( tt_palette )) { - ATARIHW_SET(TT_SHIFTER); - printk( "TT_SHIFTER " ); - } - else if (hwreg_present( &shifter.bas_hi )) { - if (hwreg_present( &shifter.bas_lo ) && - (shifter.bas_lo = 0x0aau, shifter.bas_lo == 0x0aau)) { - ATARIHW_SET(EXTD_SHIFTER); - printk( "EXTD_SHIFTER " ); - } - else { - ATARIHW_SET(STND_SHIFTER); - printk( "STND_SHIFTER " ); - } - } - if (hwreg_present( &mfp.par_dt_reg )) { - ATARIHW_SET(ST_MFP); - printk( "ST_MFP " ); - } - if (hwreg_present( &tt_mfp.par_dt_reg )) { - ATARIHW_SET(TT_MFP); - printk( "TT_MFP " ); - } - if (hwreg_present( &tt_scsi_dma.dma_addr_hi )) { - ATARIHW_SET(SCSI_DMA); - printk( "TT_SCSI_DMA " ); - } - if (!MACH_IS_HADES && hwreg_present( &st_dma.dma_hi )) { - ATARIHW_SET(STND_DMA); - printk( "STND_DMA " ); - } - if (MACH_IS_MEDUSA || /* The ST-DMA address registers aren't readable - * on all Medusas, so the test below may fail */ - (hwreg_present( &st_dma.dma_vhi ) && - (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) && - st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa && - (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) && - st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) { - ATARIHW_SET(EXTD_DMA); - printk( "EXTD_DMA " ); - } - if (hwreg_present( &tt_scsi.scsi_data )) { - ATARIHW_SET(TT_SCSI); - printk( "TT_SCSI " ); - } - if (hwreg_present( &sound_ym.rd_data_reg_sel )) { - ATARIHW_SET(YM_2149); - printk( "YM2149 " ); - } - if (!MACH_IS_MEDUSA && !MACH_IS_HADES && - hwreg_present( &tt_dmasnd.ctrl )) { - ATARIHW_SET(PCM_8BIT); - printk( "PCM " ); - } - if (!MACH_IS_HADES && hwreg_present( &falcon_codec.unused5 )) { - ATARIHW_SET(CODEC); - printk( "CODEC " ); - } - if (hwreg_present( &dsp56k_host_interface.icr )) { - ATARIHW_SET(DSP56K); - printk( "DSP56K " ); - } - if (hwreg_present( &tt_scc_dma.dma_ctrl ) && + /* ++bjoern: + * Determine hardware present + */ + + printk("Atari hardware found: "); + if (MACH_IS_MEDUSA || MACH_IS_HADES) { + /* There's no Atari video hardware on the Medusa, but all the + * addresses below generate a DTACK so no bus error occurs! */ + } else if (hwreg_present(f030_xreg)) { + ATARIHW_SET(VIDEL_SHIFTER); + printk("VIDEL "); + /* This is a temporary hack: If there is Falcon video + * hardware, we assume that the ST-DMA serves SCSI instead of + * ACSI. In the future, there should be a better method for + * this... + */ + ATARIHW_SET(ST_SCSI); + printk("STDMA-SCSI "); + } else if (hwreg_present(tt_palette)) { + ATARIHW_SET(TT_SHIFTER); + printk("TT_SHIFTER "); + } else if (hwreg_present(&shifter.bas_hi)) { + if (hwreg_present(&shifter.bas_lo) && + (shifter.bas_lo = 0x0aau, shifter.bas_lo == 0x0aau)) { + ATARIHW_SET(EXTD_SHIFTER); + printk("EXTD_SHIFTER "); + } else { + ATARIHW_SET(STND_SHIFTER); + printk("STND_SHIFTER "); + } + } + if (hwreg_present(&mfp.par_dt_reg)) { + ATARIHW_SET(ST_MFP); + printk("ST_MFP "); + } + if (hwreg_present(&tt_mfp.par_dt_reg)) { + ATARIHW_SET(TT_MFP); + printk("TT_MFP "); + } + if (hwreg_present(&tt_scsi_dma.dma_addr_hi)) { + ATARIHW_SET(SCSI_DMA); + printk("TT_SCSI_DMA "); + } + if (!MACH_IS_HADES && hwreg_present(&st_dma.dma_hi)) { + ATARIHW_SET(STND_DMA); + printk("STND_DMA "); + } + /* + * The ST-DMA address registers aren't readable + * on all Medusas, so the test below may fail + */ + if (MACH_IS_MEDUSA || + (hwreg_present(&st_dma.dma_vhi) && + (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) && + st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa && + (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) && + st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) { + ATARIHW_SET(EXTD_DMA); + printk("EXTD_DMA "); + } + if (hwreg_present(&tt_scsi.scsi_data)) { + ATARIHW_SET(TT_SCSI); + printk("TT_SCSI "); + } + if (hwreg_present(&sound_ym.rd_data_reg_sel)) { + ATARIHW_SET(YM_2149); + printk("YM2149 "); + } + if (!MACH_IS_MEDUSA && !MACH_IS_HADES && + hwreg_present(&tt_dmasnd.ctrl)) { + ATARIHW_SET(PCM_8BIT); + printk("PCM "); + } + if (!MACH_IS_HADES && hwreg_present(&falcon_codec.unused5)) { + ATARIHW_SET(CODEC); + printk("CODEC "); + } + if (hwreg_present(&dsp56k_host_interface.icr)) { + ATARIHW_SET(DSP56K); + printk("DSP56K "); + } + if (hwreg_present(&tt_scc_dma.dma_ctrl) && #if 0 - /* This test sucks! Who knows some better? */ - (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) && - (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0) + /* This test sucks! Who knows some better? */ + (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) && + (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0) #else - !MACH_IS_MEDUSA && !MACH_IS_HADES + !MACH_IS_MEDUSA && !MACH_IS_HADES #endif - ) { - ATARIHW_SET(SCC_DMA); - printk( "SCC_DMA " ); - } - if (scc_test( &scc.cha_a_ctrl )) { - ATARIHW_SET(SCC); - printk( "SCC " ); - } - if (scc_test( &st_escc.cha_b_ctrl )) { - ATARIHW_SET( ST_ESCC ); - printk( "ST_ESCC " ); - } - if (MACH_IS_HADES) - { - ATARIHW_SET( VME ); - printk( "VME " ); - } - else if (hwreg_present( &tt_scu.sys_mask )) { - ATARIHW_SET(SCU); - /* Assume a VME bus if there's a SCU */ - ATARIHW_SET( VME ); - printk( "VME SCU " ); - } - if (hwreg_present( (void *)(0xffff9210) )) { - ATARIHW_SET(ANALOG_JOY); - printk( "ANALOG_JOY " ); - } - if (!MACH_IS_HADES && hwreg_present( blitter.halftone )) { - ATARIHW_SET(BLITTER); - printk( "BLITTER " ); - } - if (hwreg_present((void *)0xfff00039)) { - ATARIHW_SET(IDE); - printk( "IDE " ); - } + ) { + ATARIHW_SET(SCC_DMA); + printk("SCC_DMA "); + } + if (scc_test(&scc.cha_a_ctrl)) { + ATARIHW_SET(SCC); + printk("SCC "); + } + if (scc_test(&st_escc.cha_b_ctrl)) { + ATARIHW_SET(ST_ESCC); + printk("ST_ESCC "); + } + if (MACH_IS_HADES) { + ATARIHW_SET(VME); + printk("VME "); + } else if (hwreg_present(&tt_scu.sys_mask)) { + ATARIHW_SET(SCU); + /* Assume a VME bus if there's a SCU */ + ATARIHW_SET(VME); + printk("VME SCU "); + } + if (hwreg_present((void *)(0xffff9210))) { + ATARIHW_SET(ANALOG_JOY); + printk("ANALOG_JOY "); + } + if (!MACH_IS_HADES && hwreg_present(blitter.halftone)) { + ATARIHW_SET(BLITTER); + printk("BLITTER "); + } + if (hwreg_present((void *)0xfff00039)) { + ATARIHW_SET(IDE); + printk("IDE "); + } #if 1 /* This maybe wrong */ - if (!MACH_IS_MEDUSA && !MACH_IS_HADES && - hwreg_present( &tt_microwire.data ) && - hwreg_present( &tt_microwire.mask ) && - (tt_microwire.mask = 0x7ff, - udelay(1), - tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR, - udelay(1), - tt_microwire.data != 0)) { - ATARIHW_SET(MICROWIRE); - while (tt_microwire.mask != 0x7ff) ; - printk( "MICROWIRE " ); - } + if (!MACH_IS_MEDUSA && !MACH_IS_HADES && + hwreg_present(&tt_microwire.data) && + hwreg_present(&tt_microwire.mask) && + (tt_microwire.mask = 0x7ff, + udelay(1), + tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR, + udelay(1), + tt_microwire.data != 0)) { + ATARIHW_SET(MICROWIRE); + while (tt_microwire.mask != 0x7ff) + ; + printk("MICROWIRE "); + } #endif - if (hwreg_present( &tt_rtc.regsel )) { - ATARIHW_SET(TT_CLK); - printk( "TT_CLK " ); - mach_hwclk = atari_tt_hwclk; - mach_set_clock_mmss = atari_tt_set_clock_mmss; - } - if (!MACH_IS_HADES && hwreg_present( &mste_rtc.sec_ones)) { - ATARIHW_SET(MSTE_CLK); - printk( "MSTE_CLK "); - mach_hwclk = atari_mste_hwclk; - mach_set_clock_mmss = atari_mste_set_clock_mmss; - } - if (!MACH_IS_MEDUSA && !MACH_IS_HADES && - hwreg_present( &dma_wd.fdc_speed ) && - hwreg_write( &dma_wd.fdc_speed, 0 )) { - ATARIHW_SET(FDCSPEED); - printk( "FDC_SPEED "); - } - if (!MACH_IS_HADES && !ATARIHW_PRESENT(ST_SCSI)) { - ATARIHW_SET(ACSI); - printk( "ACSI " ); - } - printk("\n"); - - if (CPU_IS_040_OR_060) - /* Now it seems to be safe to turn of the tt0 transparent - * translation (the one that must not be turned off in - * head.S...) - */ - __asm__ volatile ("moveq #0,%/d0\n\t" - ".chip 68040\n\t" - "movec %%d0,%%itt0\n\t" - "movec %%d0,%%dtt0\n\t" - ".chip 68k" - : /* no outputs */ - : /* no inputs */ - : "d0"); - - /* allocator for memory that must reside in st-ram */ - atari_stram_init (); - - /* Set up a mapping for the VMEbus address region: - * - * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff - * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at - * 0xfe000000 virt., because this can be done with a single - * transparent translation. On the 68040, lots of often unused - * page tables would be needed otherwise. On a MegaSTE or similar, - * the highest byte is stripped off by hardware due to the 24 bit - * design of the bus. - */ + if (hwreg_present(&tt_rtc.regsel)) { + ATARIHW_SET(TT_CLK); + printk("TT_CLK "); + mach_hwclk = atari_tt_hwclk; + mach_set_clock_mmss = atari_tt_set_clock_mmss; + } + if (!MACH_IS_HADES && hwreg_present(&mste_rtc.sec_ones)) { + ATARIHW_SET(MSTE_CLK); + printk("MSTE_CLK "); + mach_hwclk = atari_mste_hwclk; + mach_set_clock_mmss = atari_mste_set_clock_mmss; + } + if (!MACH_IS_MEDUSA && !MACH_IS_HADES && + hwreg_present(&dma_wd.fdc_speed) && + hwreg_write(&dma_wd.fdc_speed, 0)) { + ATARIHW_SET(FDCSPEED); + printk("FDC_SPEED "); + } + if (!MACH_IS_HADES && !ATARIHW_PRESENT(ST_SCSI)) { + ATARIHW_SET(ACSI); + printk("ACSI "); + } + printk("\n"); + + if (CPU_IS_040_OR_060) + /* Now it seems to be safe to turn of the tt0 transparent + * translation (the one that must not be turned off in + * head.S...) + */ + asm volatile ("\n" + " moveq #0,%%d0\n" + " .chip 68040\n" + " movec %%d0,%%itt0\n" + " movec %%d0,%%dtt0\n" + " .chip 68k" + : /* no outputs */ + : /* no inputs */ + : "d0"); + + /* allocator for memory that must reside in st-ram */ + atari_stram_init(); + + /* Set up a mapping for the VMEbus address region: + * + * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff + * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at + * 0xfe000000 virt., because this can be done with a single + * transparent translation. On the 68040, lots of often unused + * page tables would be needed otherwise. On a MegaSTE or similar, + * the highest byte is stripped off by hardware due to the 24 bit + * design of the bus. + */ + + if (CPU_IS_020_OR_030) { + unsigned long tt1_val; + tt1_val = 0xfe008543; /* Translate 0xfexxxxxx, enable, cache + * inhibit, read and write, FDC mask = 3, + * FDC val = 4 -> Supervisor only */ + asm volatile ("\n" + " .chip 68030\n" + " pmove %0@,%/tt1\n" + " .chip 68k" + : : "a" (&tt1_val)); + } else { + asm volatile ("\n" + " .chip 68040\n" + " movec %0,%%itt1\n" + " movec %0,%%dtt1\n" + " .chip 68k" + : + : "d" (0xfe00a040)); /* Translate 0xfexxxxxx, enable, + * supervisor only, non-cacheable/ + * serialized, writable */ + + } - if (CPU_IS_020_OR_030) { - unsigned long tt1_val; - tt1_val = 0xfe008543; /* Translate 0xfexxxxxx, enable, cache - * inhibit, read and write, FDC mask = 3, - * FDC val = 4 -> Supervisor only */ - __asm__ __volatile__ ( ".chip 68030\n\t" - "pmove %0@,%/tt1\n\t" - ".chip 68k" - : : "a" (&tt1_val) ); - } - else { - __asm__ __volatile__ - ( "movel %0,%/d0\n\t" - ".chip 68040\n\t" - "movec %%d0,%%itt1\n\t" - "movec %%d0,%%dtt1\n\t" - ".chip 68k" - : - : "g" (0xfe00a040) /* Translate 0xfexxxxxx, enable, - * supervisor only, non-cacheable/ - * serialized, writable */ - : "d0" ); - - } - - /* Fetch tos version at Physical 2 */ - /* We my not be able to access this address if the kernel is - loaded to st ram, since the first page is unmapped. On the - Medusa this is always the case and there is nothing we can do - about this, so we just assume the smaller offset. For the TT - we use the fact that in head.S we have set up a mapping - 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible - in the last 16MB of the address space. */ - tos_version = (MACH_IS_MEDUSA || MACH_IS_HADES) ? - 0xfff : *(unsigned short *)0xff000002; - atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68; + /* Fetch tos version at Physical 2 */ + /* + * We my not be able to access this address if the kernel is + * loaded to st ram, since the first page is unmapped. On the + * Medusa this is always the case and there is nothing we can do + * about this, so we just assume the smaller offset. For the TT + * we use the fact that in head.S we have set up a mapping + * 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible + * in the last 16MB of the address space. + */ + tos_version = (MACH_IS_MEDUSA || MACH_IS_HADES) ? + 0xfff : *(unsigned short *)0xff000002; + atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68; } #ifdef CONFIG_HEARTBEAT -static void atari_heartbeat( int on ) +static void atari_heartbeat(int on) { - unsigned char tmp; - unsigned long flags; + unsigned char tmp; + unsigned long flags; - if (atari_dont_touch_floppy_select) - return; + if (atari_dont_touch_floppy_select) + return; - local_irq_save(flags); - sound_ym.rd_data_reg_sel = 14; /* Select PSG Port A */ - tmp = sound_ym.rd_data_reg_sel; - sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02); - local_irq_restore(flags); + local_irq_save(flags); + sound_ym.rd_data_reg_sel = 14; /* Select PSG Port A */ + tmp = sound_ym.rd_data_reg_sel; + sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02); + local_irq_restore(flags); } #endif @@ -526,180 +491,171 @@ static void atari_heartbeat( int on ) /* ++andreas: no need for complicated code, just depend on prefetch */ -static void atari_reset (void) +static void atari_reset(void) { - long tc_val = 0; - long reset_addr; - - /* On the Medusa, phys. 0x4 may contain garbage because it's no - ROM. See above for explanation why we cannot use PTOV(4). */ - reset_addr = MACH_IS_HADES ? 0x7fe00030 : - MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 : - *(unsigned long *) 0xff000004; - - /* reset ACIA for switch off OverScan, if it's active */ - if (atari_switches & ATARI_SWITCH_OVSC_IKBD) - acia.key_ctrl = ACIA_RESET; - if (atari_switches & ATARI_SWITCH_OVSC_MIDI) - acia.mid_ctrl = ACIA_RESET; - - /* processor independent: turn off interrupts and reset the VBR; - * the caches must be left enabled, else prefetching the final jump - * instruction doesn't work. */ - local_irq_disable(); - __asm__ __volatile__ - ("moveq #0,%/d0\n\t" - "movec %/d0,%/vbr" - : : : "d0" ); - - if (CPU_IS_040_OR_060) { - unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); - if (CPU_IS_060) { - /* 68060: clear PCR to turn off superscalar operation */ - __asm__ __volatile__ - ("moveq #0,%/d0\n\t" - ".chip 68060\n\t" - "movec %%d0,%%pcr\n\t" - ".chip 68k" - : : : "d0" ); - } - - __asm__ __volatile__ - ("movel %0,%/d0\n\t" - "andl #0xff000000,%/d0\n\t" - "orw #0xe020,%/d0\n\t" /* map 16 MB, enable, cacheable */ - ".chip 68040\n\t" - "movec %%d0,%%itt0\n\t" - "movec %%d0,%%dtt0\n\t" - ".chip 68k\n\t" - "jmp %0@\n\t" - : /* no outputs */ - : "a" (jmp_addr040) - : "d0" ); - jmp_addr_label040: - __asm__ __volatile__ - ("moveq #0,%/d0\n\t" - "nop\n\t" - ".chip 68040\n\t" - "cinva %%bc\n\t" - "nop\n\t" - "pflusha\n\t" - "nop\n\t" - "movec %%d0,%%tc\n\t" - "nop\n\t" - /* the following setup of transparent translations is needed on the - * Afterburner040 to successfully reboot. Other machines shouldn't - * care about a different tt regs setup, they also didn't care in - * the past that the regs weren't turned off. */ - "movel #0xffc000,%%d0\n\t" /* whole insn space cacheable */ - "movec %%d0,%%itt0\n\t" - "movec %%d0,%%itt1\n\t" - "orw #0x40,%/d0\n\t" /* whole data space non-cacheable/ser. */ - "movec %%d0,%%dtt0\n\t" - "movec %%d0,%%dtt1\n\t" - ".chip 68k\n\t" - "jmp %0@" - : /* no outputs */ - : "a" (reset_addr) - : "d0"); - } - else - __asm__ __volatile__ - ("pmove %0@,%/tc\n\t" - "jmp %1@" - : /* no outputs */ - : "a" (&tc_val), "a" (reset_addr)); + long tc_val = 0; + long reset_addr; + + /* + * On the Medusa, phys. 0x4 may contain garbage because it's no + * ROM. See above for explanation why we cannot use PTOV(4). + */ + reset_addr = MACH_IS_HADES ? 0x7fe00030 : + MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 : + *(unsigned long *) 0xff000004; + + /* reset ACIA for switch off OverScan, if it's active */ + if (atari_switches & ATARI_SWITCH_OVSC_IKBD) + acia.key_ctrl = ACIA_RESET; + if (atari_switches & ATARI_SWITCH_OVSC_MIDI) + acia.mid_ctrl = ACIA_RESET; + + /* processor independent: turn off interrupts and reset the VBR; + * the caches must be left enabled, else prefetching the final jump + * instruction doesn't work. + */ + local_irq_disable(); + asm volatile ("movec %0,%%vbr" + : : "d" (0)); + + if (CPU_IS_040_OR_060) { + unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); + if (CPU_IS_060) { + /* 68060: clear PCR to turn off superscalar operation */ + asm volatile ("\n" + " .chip 68060\n" + " movec %0,%%pcr\n" + " .chip 68k" + : : "d" (0)); + } + + asm volatile ("\n" + " move.l %0,%%d0\n" + " and.l #0xff000000,%%d0\n" + " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */ + " .chip 68040\n" + " movec %%d0,%%itt0\n" + " movec %%d0,%%dtt0\n" + " .chip 68k\n" + " jmp %0@" + : : "a" (jmp_addr040) + : "d0"); + jmp_addr_label040: + asm volatile ("\n" + " moveq #0,%%d0\n" + " nop\n" + " .chip 68040\n" + " cinva %%bc\n" + " nop\n" + " pflusha\n" + " nop\n" + " movec %%d0,%%tc\n" + " nop\n" + /* the following setup of transparent translations is needed on the + * Afterburner040 to successfully reboot. Other machines shouldn't + * care about a different tt regs setup, they also didn't care in + * the past that the regs weren't turned off. */ + " move.l #0xffc000,%%d0\n" /* whole insn space cacheable */ + " movec %%d0,%%itt0\n" + " movec %%d0,%%itt1\n" + " or.w #0x40,%/d0\n" /* whole data space non-cacheable/ser. */ + " movec %%d0,%%dtt0\n" + " movec %%d0,%%dtt1\n" + " .chip 68k\n" + " jmp %0@" + : /* no outputs */ + : "a" (reset_addr) + : "d0"); + } else + asm volatile ("\n" + " pmove %0@,%%tc\n" + " jmp %1@" + : /* no outputs */ + : "a" (&tc_val), "a" (reset_addr)); } static void atari_get_model(char *model) { - strcpy(model, "Atari "); - switch (atari_mch_cookie >> 16) { + strcpy(model, "Atari "); + switch (atari_mch_cookie >> 16) { case ATARI_MCH_ST: - if (ATARIHW_PRESENT(MSTE_CLK)) - strcat (model, "Mega ST"); - else - strcat (model, "ST"); - break; + if (ATARIHW_PRESENT(MSTE_CLK)) + strcat(model, "Mega ST"); + else + strcat(model, "ST"); + break; case ATARI_MCH_STE: - if (MACH_IS_MSTE) - strcat (model, "Mega STE"); - else - strcat (model, "STE"); - break; + if (MACH_IS_MSTE) + strcat(model, "Mega STE"); + else + strcat(model, "STE"); + break; case ATARI_MCH_TT: - if (MACH_IS_MEDUSA) - /* Medusa has TT _MCH cookie */ - strcat (model, "Medusa"); - else if (MACH_IS_HADES) - strcat(model, "Hades"); - else - strcat (model, "TT"); - break; + if (MACH_IS_MEDUSA) + /* Medusa has TT _MCH cookie */ + strcat(model, "Medusa"); + else if (MACH_IS_HADES) + strcat(model, "Hades"); + else + strcat(model, "TT"); + break; case ATARI_MCH_FALCON: - strcat (model, "Falcon"); - if (MACH_IS_AB40) - strcat (model, " (with Afterburner040)"); - break; + strcat(model, "Falcon"); + if (MACH_IS_AB40) + strcat(model, " (with Afterburner040)"); + break; default: - sprintf (model + strlen (model), "(unknown mach cookie 0x%lx)", - atari_mch_cookie); - break; - } + sprintf(model + strlen(model), "(unknown mach cookie 0x%lx)", + atari_mch_cookie); + break; + } } static int atari_get_hardware_list(char *buffer) { - int len = 0, i; - - for (i = 0; i < m68k_num_memory; i++) - len += sprintf (buffer+len, "\t%3ld MB at 0x%08lx (%s)\n", - m68k_memory[i].size >> 20, m68k_memory[i].addr, - (m68k_memory[i].addr & 0xff000000 ? - "alternate RAM" : "ST-RAM")); - -#define ATARIHW_ANNOUNCE(name,str) \ - if (ATARIHW_PRESENT(name)) \ - len += sprintf (buffer + len, "\t%s\n", str) - - len += sprintf (buffer + len, "Detected hardware:\n"); - ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter"); - ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter"); - ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter"); - ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter"); - ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator"); - ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound"); - ATARIHW_ANNOUNCE(CODEC, "CODEC Sound"); - ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)"); - ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)"); - ATARIHW_ANNOUNCE(ACSI, "ACSI Interface"); - ATARIHW_ANNOUNCE(IDE, "IDE Interface"); - ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC"); - ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901"); - ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901"); - ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530"); - ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230"); - ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface"); - ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface"); - ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)"); - ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)"); - ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380"); - ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC"); - ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A"); - ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15"); - ATARIHW_ANNOUNCE(SCU, "System Control Unit"); - ATARIHW_ANNOUNCE(BLITTER, "Blitter"); - ATARIHW_ANNOUNCE(VME, "VME Bus"); - ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor"); - - return(len); + int len = 0, i; + + for (i = 0; i < m68k_num_memory; i++) + len += sprintf(buffer+len, "\t%3ld MB at 0x%08lx (%s)\n", + m68k_memory[i].size >> 20, m68k_memory[i].addr, + (m68k_memory[i].addr & 0xff000000 ? + "alternate RAM" : "ST-RAM")); + +#define ATARIHW_ANNOUNCE(name, str) \ + if (ATARIHW_PRESENT(name)) \ + len += sprintf(buffer + len, "\t%s\n", str) + + len += sprintf(buffer + len, "Detected hardware:\n"); + ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter"); + ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter"); + ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter"); + ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter"); + ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator"); + ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound"); + ATARIHW_ANNOUNCE(CODEC, "CODEC Sound"); + ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)"); + ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)"); + ATARIHW_ANNOUNCE(ACSI, "ACSI Interface"); + ATARIHW_ANNOUNCE(IDE, "IDE Interface"); + ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC"); + ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901"); + ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901"); + ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530"); + ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230"); + ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface"); + ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface"); + ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)"); + ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)"); + ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380"); + ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC"); + ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A"); + ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15"); + ATARIHW_ANNOUNCE(SCU, "System Control Unit"); + ATARIHW_ANNOUNCE(BLITTER, "Blitter"); + ATARIHW_ANNOUNCE(VME, "VME Bus"); + ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor"); + + return len; } - -/* - * Local variables: - * c-indent-level: 4 - * tab-width: 8 - * End: - */ diff --git a/arch/m68k/atari/debug.c b/arch/m68k/atari/debug.c index 4ae0100..fbeed8c 100644 --- a/arch/m68k/atari/debug.c +++ b/arch/m68k/atari/debug.c @@ -19,8 +19,6 @@ #include <asm/atarihw.h> #include <asm/atariints.h> -extern char m68k_debug_device[]; - /* Flag that Modem1 port is already initialized and used */ int atari_MFP_init_done; /* Flag that Modem1 port is already initialized and used */ @@ -30,317 +28,317 @@ int atari_SCC_init_done; int atari_SCC_reset_done; static struct console atari_console_driver = { - .name = "debug", - .flags = CON_PRINTBUFFER, - .index = -1, + .name = "debug", + .flags = CON_PRINTBUFFER, + .index = -1, }; -static inline void ata_mfp_out (char c) +static inline void ata_mfp_out(char c) { - while (!(mfp.trn_stat & 0x80)) /* wait for tx buf empty */ - barrier (); - mfp.usart_dta = c; + while (!(mfp.trn_stat & 0x80)) /* wait for tx buf empty */ + barrier(); + mfp.usart_dta = c; } -void atari_mfp_console_write (struct console *co, const char *str, - unsigned int count) +void atari_mfp_console_write(struct console *co, const char *str, + unsigned int count) { - while (count--) { - if (*str == '\n') - ata_mfp_out( '\r' ); - ata_mfp_out( *str++ ); - } + while (count--) { + if (*str == '\n') + ata_mfp_out('\r'); + ata_mfp_out(*str++); + } } -static inline void ata_scc_out (char c) +static inline void ata_scc_out(char c) { - do { + do { + MFPDELAY(); + } while (!(scc.cha_b_ctrl & 0x04)); /* wait for tx buf empty */ MFPDELAY(); - } while (!(scc.cha_b_ctrl & 0x04)); /* wait for tx buf empty */ - MFPDELAY(); - scc.cha_b_data = c; + scc.cha_b_data = c; } -void atari_scc_console_write (struct console *co, const char *str, - unsigned int count) +void atari_scc_console_write(struct console *co, const char *str, + unsigned int count) { - while (count--) { - if (*str == '\n') - ata_scc_out( '\r' ); - ata_scc_out( *str++ ); - } + while (count--) { + if (*str == '\n') + ata_scc_out('\r'); + ata_scc_out(*str++); + } } -static inline void ata_midi_out (char c) +static inline void ata_midi_out(char c) { - while (!(acia.mid_ctrl & ACIA_TDRE)) /* wait for tx buf empty */ - barrier (); - acia.mid_data = c; + while (!(acia.mid_ctrl & ACIA_TDRE)) /* wait for tx buf empty */ + barrier(); + acia.mid_data = c; } -void atari_midi_console_write (struct console *co, const char *str, - unsigned int count) +void atari_midi_console_write(struct console *co, const char *str, + unsigned int count) { - while (count--) { - if (*str == '\n') - ata_midi_out( '\r' ); - ata_midi_out( *str++ ); - } + while (count--) { + if (*str == '\n') + ata_midi_out('\r'); + ata_midi_out(*str++); + } } -static int ata_par_out (char c) +static int ata_par_out(char c) { - unsigned char tmp; - /* This a some-seconds timeout in case no printer is connected */ - unsigned long i = loops_per_jiffy > 1 ? loops_per_jiffy : 10000000/HZ; - - while( (mfp.par_dt_reg & 1) && --i ) /* wait for BUSY == L */ - ; - if (!i) return( 0 ); - - sound_ym.rd_data_reg_sel = 15; /* select port B */ - sound_ym.wd_data = c; /* put char onto port */ - sound_ym.rd_data_reg_sel = 14; /* select port A */ - tmp = sound_ym.rd_data_reg_sel; - sound_ym.wd_data = tmp & ~0x20; /* set strobe L */ - MFPDELAY(); /* wait a bit */ - sound_ym.wd_data = tmp | 0x20; /* set strobe H */ - return( 1 ); + unsigned char tmp; + /* This a some-seconds timeout in case no printer is connected */ + unsigned long i = loops_per_jiffy > 1 ? loops_per_jiffy : 10000000/HZ; + + while ((mfp.par_dt_reg & 1) && --i) /* wait for BUSY == L */ + ; + if (!i) + return 0; + + sound_ym.rd_data_reg_sel = 15; /* select port B */ + sound_ym.wd_data = c; /* put char onto port */ + sound_ym.rd_data_reg_sel = 14; /* select port A */ + tmp = sound_ym.rd_data_reg_sel; + sound_ym.wd_data = tmp & ~0x20; /* set strobe L */ + MFPDELAY(); /* wait a bit */ + sound_ym.wd_data = tmp | 0x20; /* set strobe H */ + return 1; } -static void atari_par_console_write (struct console *co, const char *str, - unsigned int count) +static void atari_par_console_write(struct console *co, const char *str, + unsigned int count) { - static int printer_present = 1; + static int printer_present = 1; - if (!printer_present) - return; - - while (count--) { - if (*str == '\n') - if (!ata_par_out( '\r' )) { - printer_present = 0; + if (!printer_present) return; - } - if (!ata_par_out( *str++ )) { - printer_present = 0; - return; + + while (count--) { + if (*str == '\n') { + if (!ata_par_out('\r')) { + printer_present = 0; + return; + } + } + if (!ata_par_out(*str++)) { + printer_present = 0; + return; + } } - } } #ifdef CONFIG_SERIAL_CONSOLE int atari_mfp_console_wait_key(struct console *co) { - while( !(mfp.rcv_stat & 0x80) ) /* wait for rx buf filled */ - barrier(); - return( mfp.usart_dta ); + while (!(mfp.rcv_stat & 0x80)) /* wait for rx buf filled */ + barrier(); + return mfp.usart_dta; } int atari_scc_console_wait_key(struct console *co) { - do { + do { + MFPDELAY(); + } while (!(scc.cha_b_ctrl & 0x01)); /* wait for rx buf filled */ MFPDELAY(); - } while( !(scc.cha_b_ctrl & 0x01) ); /* wait for rx buf filled */ - MFPDELAY(); - return( scc.cha_b_data ); + return scc.cha_b_data; } int atari_midi_console_wait_key(struct console *co) { - while( !(acia.mid_ctrl & ACIA_RDRF) ) /* wait for rx buf filled */ - barrier(); - return( acia.mid_data ); + while (!(acia.mid_ctrl & ACIA_RDRF)) /* wait for rx buf filled */ + barrier(); + return acia.mid_data; } #endif -/* The following two functions do a quick'n'dirty initialization of the MFP or +/* + * The following two functions do a quick'n'dirty initialization of the MFP or * SCC serial ports. They're used by the debugging interface, kgdb, and the - * serial console code. */ + * serial console code. + */ #ifndef CONFIG_SERIAL_CONSOLE -static void __init atari_init_mfp_port( int cflag ) +static void __init atari_init_mfp_port(int cflag) #else -void atari_init_mfp_port( int cflag ) +void atari_init_mfp_port(int cflag) #endif { - /* timer values for 1200...115200 bps; > 38400 select 110, 134, or 150 - * bps, resp., and work only correct if there's a RSVE or RSSPEED */ - static int baud_table[9] = { 16, 11, 8, 4, 2, 1, 175, 143, 128 }; - int baud = cflag & CBAUD; - int parity = (cflag & PARENB) ? ((cflag & PARODD) ? 0x04 : 0x06) : 0; - int csize = ((cflag & CSIZE) == CS7) ? 0x20 : 0x00; - - if (cflag & CBAUDEX) - baud += B38400; - if (baud < B1200 || baud > B38400+2) - baud = B9600; /* use default 9600bps for non-implemented rates */ - baud -= B1200; /* baud_table[] starts at 1200bps */ - - mfp.trn_stat &= ~0x01; /* disable TX */ - mfp.usart_ctr = parity | csize | 0x88; /* 1:16 clk mode, 1 stop bit */ - mfp.tim_ct_cd &= 0x70; /* stop timer D */ - mfp.tim_dt_d = baud_table[baud]; - mfp.tim_ct_cd |= 0x01; /* start timer D, 1:4 */ - mfp.trn_stat |= 0x01; /* enable TX */ - - atari_MFP_init_done = 1; + /* + * timer values for 1200...115200 bps; > 38400 select 110, 134, or 150 + * bps, resp., and work only correct if there's a RSVE or RSSPEED + */ + static int baud_table[9] = { 16, 11, 8, 4, 2, 1, 175, 143, 128 }; + int baud = cflag & CBAUD; + int parity = (cflag & PARENB) ? ((cflag & PARODD) ? 0x04 : 0x06) : 0; + int csize = ((cflag & CSIZE) == CS7) ? 0x20 : 0x00; + + if (cflag & CBAUDEX) + baud += B38400; + if (baud < B1200 || baud > B38400+2) + baud = B9600; /* use default 9600bps for non-implemented rates */ + baud -= B1200; /* baud_table[] starts at 1200bps */ + + mfp.trn_stat &= ~0x01; /* disable TX */ + mfp.usart_ctr = parity | csize | 0x88; /* 1:16 clk mode, 1 stop bit */ + mfp.tim_ct_cd &= 0x70; /* stop timer D */ + mfp.tim_dt_d = baud_table[baud]; + mfp.tim_ct_cd |= 0x01; /* start timer D, 1:4 */ + mfp.trn_stat |= 0x01; /* enable TX */ + + atari_MFP_init_done = 1; } -#define SCC_WRITE(reg,val) \ - do { \ - scc.cha_b_ctrl = (reg); \ - MFPDELAY(); \ - scc.cha_b_ctrl = (val); \ - MFPDELAY(); \ - } while(0) +#define SCC_WRITE(reg, val) \ + do { \ + scc.cha_b_ctrl = (reg); \ + MFPDELAY(); \ + scc.cha_b_ctrl = (val); \ + MFPDELAY(); \ + } while (0) /* loops_per_jiffy isn't initialized yet, so we can't use udelay(). This does a * delay of ~ 60us. */ -#define LONG_DELAY() \ - do { \ - int i; \ - for( i = 100; i > 0; --i ) \ - MFPDELAY(); \ - } while(0) +#define LONG_DELAY() \ + do { \ + int i; \ + for (i = 100; i > 0; --i) \ + MFPDELAY(); \ + } while (0) #ifndef CONFIG_SERIAL_CONSOLE -static void __init atari_init_scc_port( int cflag ) +static void __init atari_init_scc_port(int cflag) #else -void atari_init_scc_port( int cflag ) +void atari_init_scc_port(int cflag) #endif { - extern int atari_SCC_reset_done; - static int clksrc_table[9] = - /* reg 11: 0x50 = BRG, 0x00 = RTxC, 0x28 = TRxC */ - { 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x00, 0x00 }; - static int brgsrc_table[9] = - /* reg 14: 0 = RTxC, 2 = PCLK */ - { 2, 2, 2, 2, 2, 2, 0, 2, 2 }; - static int clkmode_table[9] = - /* reg 4: 0x40 = x16, 0x80 = x32, 0xc0 = x64 */ - { 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0xc0, 0x80 }; - static int div_table[9] = - /* reg12 (BRG low) */ - { 208, 138, 103, 50, 24, 11, 1, 0, 0 }; - - int baud = cflag & CBAUD; - int clksrc, clkmode, div, reg3, reg5; - - if (cflag & CBAUDEX) - baud += B38400; - if (baud < B1200 || baud > B38400+2) - baud = B9600; /* use default 9600bps for non-implemented rates */ - baud -= B1200; /* tables starts at 1200bps */ - - clksrc = clksrc_table[baud]; - clkmode = clkmode_table[baud]; - div = div_table[baud]; - if (ATARIHW_PRESENT(TT_MFP) && baud >= 6) { - /* special treatment for TT, where rates >= 38400 are done via TRxC */ - clksrc = 0x28; /* TRxC */ - clkmode = baud == 6 ? 0xc0 : - baud == 7 ? 0x80 : /* really 76800bps */ - 0x40; /* really 153600bps */ - div = 0; - } - - reg3 = (cflag & CSIZE) == CS8 ? 0xc0 : 0x40; - reg5 = (cflag & CSIZE) == CS8 ? 0x60 : 0x20 | 0x82 /* assert DTR/RTS */; - - (void)scc.cha_b_ctrl; /* reset reg pointer */ - SCC_WRITE( 9, 0xc0 ); /* reset */ - LONG_DELAY(); /* extra delay after WR9 access */ - SCC_WRITE( 4, (cflag & PARENB) ? ((cflag & PARODD) ? 0x01 : 0x03) : 0 | - 0x04 /* 1 stopbit */ | - clkmode ); - SCC_WRITE( 3, reg3 ); - SCC_WRITE( 5, reg5 ); - SCC_WRITE( 9, 0 ); /* no interrupts */ - LONG_DELAY(); /* extra delay after WR9 access */ - SCC_WRITE( 10, 0 ); /* NRZ mode */ - SCC_WRITE( 11, clksrc ); /* main clock source */ - SCC_WRITE( 12, div ); /* BRG value */ - SCC_WRITE( 13, 0 ); /* BRG high byte */ - SCC_WRITE( 14, brgsrc_table[baud] ); - SCC_WRITE( 14, brgsrc_table[baud] | (div ? 1 : 0) ); - SCC_WRITE( 3, reg3 | 1 ); - SCC_WRITE( 5, reg5 | 8 ); - - atari_SCC_reset_done = 1; - atari_SCC_init_done = 1; + extern int atari_SCC_reset_done; + static int clksrc_table[9] = + /* reg 11: 0x50 = BRG, 0x00 = RTxC, 0x28 = TRxC */ + { 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x00, 0x00 }; + static int brgsrc_table[9] = + /* reg 14: 0 = RTxC, 2 = PCLK */ + { 2, 2, 2, 2, 2, 2, 0, 2, 2 }; + static int clkmode_table[9] = + /* reg 4: 0x40 = x16, 0x80 = x32, 0xc0 = x64 */ + { 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0xc0, 0x80 }; + static int div_table[9] = + /* reg12 (BRG low) */ + { 208, 138, 103, 50, 24, 11, 1, 0, 0 }; + + int baud = cflag & CBAUD; + int clksrc, clkmode, div, reg3, reg5; + + if (cflag & CBAUDEX) + baud += B38400; + if (baud < B1200 || baud > B38400+2) + baud = B9600; /* use default 9600bps for non-implemented rates */ + baud -= B1200; /* tables starts at 1200bps */ + + clksrc = clksrc_table[baud]; + clkmode = clkmode_table[baud]; + div = div_table[baud]; + if (ATARIHW_PRESENT(TT_MFP) && baud >= 6) { + /* special treatment for TT, where rates >= 38400 are done via TRxC */ + clksrc = 0x28; /* TRxC */ + clkmode = baud == 6 ? 0xc0 : + baud == 7 ? 0x80 : /* really 76800bps */ + 0x40; /* really 153600bps */ + div = 0; + } + + reg3 = (cflag & CSIZE) == CS8 ? 0xc0 : 0x40; + reg5 = (cflag & CSIZE) == CS8 ? 0x60 : 0x20 | 0x82 /* assert DTR/RTS */; + + (void)scc.cha_b_ctrl; /* reset reg pointer */ + SCC_WRITE(9, 0xc0); /* reset */ + LONG_DELAY(); /* extra delay after WR9 access */ + SCC_WRITE(4, (cflag & PARENB) ? ((cflag & PARODD) ? 0x01 : 0x03) + : 0 | 0x04 /* 1 stopbit */ | clkmode); + SCC_WRITE(3, reg3); + SCC_WRITE(5, reg5); + SCC_WRITE(9, 0); /* no interrupts */ + LONG_DELAY(); /* extra delay after WR9 access */ + SCC_WRITE(10, 0); /* NRZ mode */ + SCC_WRITE(11, clksrc); /* main clock source */ + SCC_WRITE(12, div); /* BRG value */ + SCC_WRITE(13, 0); /* BRG high byte */ + SCC_WRITE(14, brgsrc_table[baud]); + SCC_WRITE(14, brgsrc_table[baud] | (div ? 1 : 0)); + SCC_WRITE(3, reg3 | 1); + SCC_WRITE(5, reg5 | 8); + + atari_SCC_reset_done = 1; + atari_SCC_init_done = 1; } #ifndef CONFIG_SERIAL_CONSOLE -static void __init atari_init_midi_port( int cflag ) +static void __init atari_init_midi_port(int cflag) #else -void atari_init_midi_port( int cflag ) +void atari_init_midi_port(int cflag) #endif { - int baud = cflag & CBAUD; - int csize = ((cflag & CSIZE) == CS8) ? 0x10 : 0x00; - /* warning 7N1 isn't possible! (instead 7O2 is used...) */ - int parity = (cflag & PARENB) ? ((cflag & PARODD) ? 0x0c : 0x08) : 0x04; - int div; - - /* 4800 selects 7812.5, 115200 selects 500000, all other (incl. 9600 as - * default) the standard MIDI speed 31250. */ - if (cflag & CBAUDEX) - baud += B38400; - if (baud == B4800) - div = ACIA_DIV64; /* really 7812.5 bps */ - else if (baud == B38400+2 /* 115200 */) - div = ACIA_DIV1; /* really 500 kbps (does that work??) */ - else - div = ACIA_DIV16; /* 31250 bps, standard for MIDI */ - - /* RTS low, ints disabled */ - acia.mid_ctrl = div | csize | parity | + int baud = cflag & CBAUD; + int csize = ((cflag & CSIZE) == CS8) ? 0x10 : 0x00; + /* warning 7N1 isn't possible! (instead 7O2 is used...) */ + int parity = (cflag & PARENB) ? ((cflag & PARODD) ? 0x0c : 0x08) : 0x04; + int div; + + /* 4800 selects 7812.5, 115200 selects 500000, all other (incl. 9600 as + * default) the standard MIDI speed 31250. */ + if (cflag & CBAUDEX) + baud += B38400; + if (baud == B4800) + div = ACIA_DIV64; /* really 7812.5 bps */ + else if (baud == B38400+2 /* 115200 */) + div = ACIA_DIV1; /* really 500 kbps (does that work??) */ + else + div = ACIA_DIV16; /* 31250 bps, standard for MIDI */ + + /* RTS low, ints disabled */ + acia.mid_ctrl = div | csize | parity | ((atari_switches & ATARI_SWITCH_MIDI) ? ACIA_RHTID : ACIA_RLTID); } -void __init atari_debug_init(void) +static int __init atari_debug_setup(char *arg) { - if (!strcmp( m68k_debug_device, "ser" )) { - /* defaults to ser2 for a Falcon and ser1 otherwise */ - strcpy( m68k_debug_device, MACH_IS_FALCON ? "ser2" : "ser1" ); - - } - - if (!strcmp( m68k_debug_device, "ser1" )) { - /* ST-MFP Modem1 serial port */ - atari_init_mfp_port( B9600|CS8 ); - atari_console_driver.write = atari_mfp_console_write; - } - else if (!strcmp( m68k_debug_device, "ser2" )) { - /* SCC Modem2 serial port */ - atari_init_scc_port( B9600|CS8 ); - atari_console_driver.write = atari_scc_console_write; - } - else if (!strcmp( m68k_debug_device, "midi" )) { - /* MIDI port */ - atari_init_midi_port( B9600|CS8 ); - atari_console_driver.write = atari_midi_console_write; - } - else if (!strcmp( m68k_debug_device, "par" )) { - /* parallel printer */ - atari_turnoff_irq( IRQ_MFP_BUSY ); /* avoid ints */ - sound_ym.rd_data_reg_sel = 7; /* select mixer control */ - sound_ym.wd_data = 0xff; /* sound off, ports are output */ - sound_ym.rd_data_reg_sel = 15; /* select port B */ - sound_ym.wd_data = 0; /* no char */ - sound_ym.rd_data_reg_sel = 14; /* select port A */ - sound_ym.wd_data = sound_ym.rd_data_reg_sel | 0x20; /* strobe H */ - atari_console_driver.write = atari_par_console_write; - } - if (atari_console_driver.write) - register_console(&atari_console_driver); + if (!MACH_IS_ATARI) + return 0; + + if (!strcmp(arg, "ser")) + /* defaults to ser2 for a Falcon and ser1 otherwise */ + arg = MACH_IS_FALCON ? "ser2" : "ser1"; + + if (!strcmp(arg, "ser1")) { + /* ST-MFP Modem1 serial port */ + atari_init_mfp_port(B9600|CS8); + atari_console_driver.write = atari_mfp_console_write; + } else if (!strcmp(arg, "ser2")) { + /* SCC Modem2 serial port */ + atari_init_scc_port(B9600|CS8); + atari_console_driver.write = atari_scc_console_write; + } else if (!strcmp(arg, "midi")) { + /* MIDI port */ + atari_init_midi_port(B9600|CS8); + atari_console_driver.write = atari_midi_console_write; + } else if (!strcmp(arg, "par")) { + /* parallel printer */ + atari_turnoff_irq(IRQ_MFP_BUSY); /* avoid ints */ + sound_ym.rd_data_reg_sel = 7; /* select mixer control */ + sound_ym.wd_data = 0xff; /* sound off, ports are output */ + sound_ym.rd_data_reg_sel = 15; /* select port B */ + sound_ym.wd_data = 0; /* no char */ + sound_ym.rd_data_reg_sel = 14; /* select port A */ + sound_ym.wd_data = sound_ym.rd_data_reg_sel | 0x20; /* strobe H */ + atari_console_driver.write = atari_par_console_write; + } + if (atari_console_driver.write) + register_console(&atari_console_driver); + + return 0; } -/* - * Local variables: - * c-indent-level: 4 - * tab-width: 8 - * End: - */ +early_param("debug", atari_debug_setup); diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 222ce42..e162ee68 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -692,7 +692,7 @@ sys_call_table: .long sys_tgkill /* 265 */ .long sys_utimes .long sys_fadvise64_64 - .long sys_mbind + .long sys_mbind .long sys_get_mempolicy .long sys_set_mempolicy /* 270 */ .long sys_mq_open diff --git a/arch/m68k/kernel/head.S b/arch/m68k/kernel/head.S index 6739e87..05741f2 100644 --- a/arch/m68k/kernel/head.S +++ b/arch/m68k/kernel/head.S @@ -3195,7 +3195,7 @@ func_start serial_putc,%d0/%d1/%a0/%a1 jbra L(serial_putc_done) 3: #endif - + L(serial_putc_done): func_return serial_putc diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index b66c97c..60d4d75 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -59,14 +59,14 @@ static int m68k_first_user_vec; static struct irq_controller auto_irq_controller = { .name = "auto", - .lock = SPIN_LOCK_UNLOCKED, + .lock = __SPIN_LOCK_UNLOCKED(auto_irq_controller.lock), .startup = m68k_irq_startup, .shutdown = m68k_irq_shutdown, }; static struct irq_controller user_irq_controller = { .name = "user", - .lock = SPIN_LOCK_UNLOCKED, + .lock = __SPIN_LOCK_UNLOCKED(user_irq_controller.lock), .startup = m68k_irq_startup, .shutdown = m68k_irq_shutdown, }; diff --git a/arch/m68k/kernel/setup.c b/arch/m68k/kernel/setup.c index 42b8fd0..6103193 100644 --- a/arch/m68k/kernel/setup.c +++ b/arch/m68k/kernel/setup.c @@ -71,9 +71,6 @@ static struct mem_info m68k_ramdisk; static char m68k_command_line[CL_SIZE]; -char m68k_debug_device[6] = ""; -EXPORT_SYMBOL(m68k_debug_device); - void (*mach_sched_init) (irq_handler_t handler) __initdata = NULL; /* machine dependent irq functions */ void (*mach_init_IRQ) (void) __initdata = NULL; @@ -133,78 +130,78 @@ extern void config_hp300(void); extern void config_q40(void); extern void config_sun3x(void); -extern void mac_debugging_short (int, short); -extern void mac_debugging_long (int, long); - #define MASK_256K 0xfffc0000 extern void paging_init(void); static void __init m68k_parse_bootinfo(const struct bi_record *record) { - while (record->tag != BI_LAST) { - int unknown = 0; - const unsigned long *data = record->data; - switch (record->tag) { - case BI_MACHTYPE: - case BI_CPUTYPE: - case BI_FPUTYPE: - case BI_MMUTYPE: - /* Already set up by head.S */ - break; - - case BI_MEMCHUNK: - if (m68k_num_memory < NUM_MEMINFO) { - m68k_memory[m68k_num_memory].addr = data[0]; - m68k_memory[m68k_num_memory].size = data[1]; - m68k_num_memory++; - } else - printk("m68k_parse_bootinfo: too many memory chunks\n"); - break; - - case BI_RAMDISK: - m68k_ramdisk.addr = data[0]; - m68k_ramdisk.size = data[1]; - break; - - case BI_COMMAND_LINE: - strlcpy(m68k_command_line, (const char *)data, sizeof(m68k_command_line)); - break; - - default: - if (MACH_IS_AMIGA) - unknown = amiga_parse_bootinfo(record); - else if (MACH_IS_ATARI) - unknown = atari_parse_bootinfo(record); - else if (MACH_IS_MAC) - unknown = mac_parse_bootinfo(record); - else if (MACH_IS_Q40) - unknown = q40_parse_bootinfo(record); - else if (MACH_IS_BVME6000) - unknown = bvme6000_parse_bootinfo(record); - else if (MACH_IS_MVME16x) - unknown = mvme16x_parse_bootinfo(record); - else if (MACH_IS_MVME147) - unknown = mvme147_parse_bootinfo(record); - else if (MACH_IS_HP300) - unknown = hp300_parse_bootinfo(record); - else - unknown = 1; + while (record->tag != BI_LAST) { + int unknown = 0; + const unsigned long *data = record->data; + + switch (record->tag) { + case BI_MACHTYPE: + case BI_CPUTYPE: + case BI_FPUTYPE: + case BI_MMUTYPE: + /* Already set up by head.S */ + break; + + case BI_MEMCHUNK: + if (m68k_num_memory < NUM_MEMINFO) { + m68k_memory[m68k_num_memory].addr = data[0]; + m68k_memory[m68k_num_memory].size = data[1]; + m68k_num_memory++; + } else + printk("m68k_parse_bootinfo: too many memory chunks\n"); + break; + + case BI_RAMDISK: + m68k_ramdisk.addr = data[0]; + m68k_ramdisk.size = data[1]; + break; + + case BI_COMMAND_LINE: + strlcpy(m68k_command_line, (const char *)data, + sizeof(m68k_command_line)); + break; + + default: + if (MACH_IS_AMIGA) + unknown = amiga_parse_bootinfo(record); + else if (MACH_IS_ATARI) + unknown = atari_parse_bootinfo(record); + else if (MACH_IS_MAC) + unknown = mac_parse_bootinfo(record); + else if (MACH_IS_Q40) + unknown = q40_parse_bootinfo(record); + else if (MACH_IS_BVME6000) + unknown = bvme6000_parse_bootinfo(record); + else if (MACH_IS_MVME16x) + unknown = mvme16x_parse_bootinfo(record); + else if (MACH_IS_MVME147) + unknown = mvme147_parse_bootinfo(record); + else if (MACH_IS_HP300) + unknown = hp300_parse_bootinfo(record); + else + unknown = 1; + } + if (unknown) + printk("m68k_parse_bootinfo: unknown tag 0x%04x ignored\n", + record->tag); + record = (struct bi_record *)((unsigned long)record + + record->size); } - if (unknown) - printk("m68k_parse_bootinfo: unknown tag 0x%04x ignored\n", - record->tag); - record = (struct bi_record *)((unsigned long)record+record->size); - } - m68k_realnum_memory = m68k_num_memory; + m68k_realnum_memory = m68k_num_memory; #ifdef CONFIG_SINGLE_MEMORY_CHUNK - if (m68k_num_memory > 1) { - printk("Ignoring last %i chunks of physical memory\n", - (m68k_num_memory - 1)); - m68k_num_memory = 1; - } - m68k_memoffset = m68k_memory[0].addr-PAGE_OFFSET; + if (m68k_num_memory > 1) { + printk("Ignoring last %i chunks of physical memory\n", + (m68k_num_memory - 1)); + m68k_num_memory = 1; + } + m68k_memoffset = m68k_memory[0].addr-PAGE_OFFSET; #endif } @@ -215,7 +212,6 @@ void __init setup_arch(char **cmdline_p) unsigned long endmem, startmem; #endif int i; - char *p, *q; /* The bootinfo is located right after the kernel bss */ m68k_parse_bootinfo((const struct bi_record *)&_end); @@ -234,7 +230,7 @@ void __init setup_arch(char **cmdline_p) /* clear the fpu if we have one */ if (m68k_fputype & (FPU_68881|FPU_68882|FPU_68040|FPU_68060)) { volatile int zero = 0; - asm __volatile__ ("frestore %0" : : "m" (zero)); + asm volatile ("frestore %0" : : "m" (zero)); } #endif @@ -258,37 +254,7 @@ void __init setup_arch(char **cmdline_p) *cmdline_p = m68k_command_line; memcpy(boot_command_line, *cmdline_p, CL_SIZE); - /* Parse the command line for arch-specific options. - * For the m68k, this is currently only "debug=xxx" to enable printing - * certain kernel messages to some machine-specific device. - */ - for( p = *cmdline_p; p && *p; ) { - i = 0; - if (!strncmp( p, "debug=", 6 )) { - strlcpy( m68k_debug_device, p+6, sizeof(m68k_debug_device) ); - if ((q = strchr( m68k_debug_device, ' ' ))) *q = 0; - i = 1; - } -#ifdef CONFIG_ATARI - /* This option must be parsed very early */ - if (!strncmp( p, "switches=", 9 )) { - extern void atari_switches_setup( const char *, int ); - atari_switches_setup( p+9, (q = strchr( p+9, ' ' )) ? - (q - (p+9)) : strlen(p+9) ); - i = 1; - } -#endif - - if (i) { - /* option processed, delete it */ - if ((q = strchr( p, ' ' ))) - strcpy( p, q+1 ); - else - *p = 0; - } else { - if ((p = strchr( p, ' ' ))) ++p; - } - } + parse_early_param(); #ifdef CONFIG_DUMMY_CONSOLE conswitchp = &dummy_con; @@ -296,62 +262,62 @@ void __init setup_arch(char **cmdline_p) switch (m68k_machtype) { #ifdef CONFIG_AMIGA - case MACH_AMIGA: + case MACH_AMIGA: config_amiga(); break; #endif #ifdef CONFIG_ATARI - case MACH_ATARI: + case MACH_ATARI: config_atari(); break; #endif #ifdef CONFIG_MAC - case MACH_MAC: + case MACH_MAC: config_mac(); break; #endif #ifdef CONFIG_SUN3 - case MACH_SUN3: + case MACH_SUN3: config_sun3(); break; #endif #ifdef CONFIG_APOLLO - case MACH_APOLLO: + case MACH_APOLLO: config_apollo(); break; #endif #ifdef CONFIG_MVME147 - case MACH_MVME147: + case MACH_MVME147: config_mvme147(); break; #endif #ifdef CONFIG_MVME16x - case MACH_MVME16x: + case MACH_MVME16x: config_mvme16x(); break; #endif #ifdef CONFIG_BVME6000 - case MACH_BVME6000: + case MACH_BVME6000: config_bvme6000(); break; #endif #ifdef CONFIG_HP300 - case MACH_HP300: + case MACH_HP300: config_hp300(); break; #endif #ifdef CONFIG_Q40 - case MACH_Q40: - config_q40(); + case MACH_Q40: + config_q40(); break; #endif #ifdef CONFIG_SUN3X - case MACH_SUN3X: + case MACH_SUN3X: config_sun3x(); break; #endif - default: - panic ("No configuration setup"); + default: + panic("No configuration setup"); } #ifndef CONFIG_SUN3 @@ -380,7 +346,7 @@ void __init setup_arch(char **cmdline_p) reserve_bootmem(m68k_ramdisk.addr, m68k_ramdisk.size); initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr); initrd_end = initrd_start + m68k_ramdisk.size; - printk ("initrd: %08lx - %08lx\n", initrd_start, initrd_end); + printk("initrd: %08lx - %08lx\n", initrd_start, initrd_end); } #endif @@ -402,18 +368,18 @@ void __init setup_arch(char **cmdline_p) #if defined(CONFIG_ISA) && defined(MULTI_ISA) #if defined(CONFIG_Q40) if (MACH_IS_Q40) { - isa_type = Q40_ISA; - isa_sex = 0; + isa_type = Q40_ISA; + isa_sex = 0; } #elif defined(CONFIG_GG2) - if (MACH_IS_AMIGA && AMIGAHW_PRESENT(GG2_ISA)){ - isa_type = GG2_ISA; - isa_sex = 0; + if (MACH_IS_AMIGA && AMIGAHW_PRESENT(GG2_ISA)) { + isa_type = GG2_ISA; + isa_sex = 0; } #elif defined(CONFIG_AMIGA_PCMCIA) - if (MACH_IS_AMIGA && AMIGAHW_PRESENT(PCMCIA)){ - isa_type = AG_ISA; - isa_sex = 1; + if (MACH_IS_AMIGA && AMIGAHW_PRESENT(PCMCIA)) { + isa_type = AG_ISA; + isa_sex = 1; } #endif #endif @@ -421,66 +387,66 @@ void __init setup_arch(char **cmdline_p) static int show_cpuinfo(struct seq_file *m, void *v) { - const char *cpu, *mmu, *fpu; - unsigned long clockfreq, clockfactor; + const char *cpu, *mmu, *fpu; + unsigned long clockfreq, clockfactor; #define LOOP_CYCLES_68020 (8) #define LOOP_CYCLES_68030 (8) #define LOOP_CYCLES_68040 (3) #define LOOP_CYCLES_68060 (1) - if (CPU_IS_020) { - cpu = "68020"; - clockfactor = LOOP_CYCLES_68020; - } else if (CPU_IS_030) { - cpu = "68030"; - clockfactor = LOOP_CYCLES_68030; - } else if (CPU_IS_040) { - cpu = "68040"; - clockfactor = LOOP_CYCLES_68040; - } else if (CPU_IS_060) { - cpu = "68060"; - clockfactor = LOOP_CYCLES_68060; - } else { - cpu = "680x0"; - clockfactor = 0; - } + if (CPU_IS_020) { + cpu = "68020"; + clockfactor = LOOP_CYCLES_68020; + } else if (CPU_IS_030) { + cpu = "68030"; + clockfactor = LOOP_CYCLES_68030; + } else if (CPU_IS_040) { + cpu = "68040"; + clockfactor = LOOP_CYCLES_68040; + } else if (CPU_IS_060) { + cpu = "68060"; + clockfactor = LOOP_CYCLES_68060; + } else { + cpu = "680x0"; + clockfactor = 0; + } #ifdef CONFIG_M68KFPU_EMU_ONLY - fpu="none(soft float)"; + fpu = "none(soft float)"; #else - if (m68k_fputype & FPU_68881) - fpu = "68881"; - else if (m68k_fputype & FPU_68882) - fpu = "68882"; - else if (m68k_fputype & FPU_68040) - fpu = "68040"; - else if (m68k_fputype & FPU_68060) - fpu = "68060"; - else if (m68k_fputype & FPU_SUNFPA) - fpu = "Sun FPA"; - else - fpu = "none"; + if (m68k_fputype & FPU_68881) + fpu = "68881"; + else if (m68k_fputype & FPU_68882) + fpu = "68882"; + else if (m68k_fputype & FPU_68040) + fpu = "68040"; + else if (m68k_fputype & FPU_68060) + fpu = "68060"; + else if (m68k_fputype & FPU_SUNFPA) + fpu = "Sun FPA"; + else + fpu = "none"; #endif - if (m68k_mmutype & MMU_68851) - mmu = "68851"; - else if (m68k_mmutype & MMU_68030) - mmu = "68030"; - else if (m68k_mmutype & MMU_68040) - mmu = "68040"; - else if (m68k_mmutype & MMU_68060) - mmu = "68060"; - else if (m68k_mmutype & MMU_SUN3) - mmu = "Sun-3"; - else if (m68k_mmutype & MMU_APOLLO) - mmu = "Apollo"; - else - mmu = "unknown"; - - clockfreq = loops_per_jiffy*HZ*clockfactor; - - seq_printf(m, "CPU:\t\t%s\n" + if (m68k_mmutype & MMU_68851) + mmu = "68851"; + else if (m68k_mmutype & MMU_68030) + mmu = "68030"; + else if (m68k_mmutype & MMU_68040) + mmu = "68040"; + else if (m68k_mmutype & MMU_68060) + mmu = "68060"; + else if (m68k_mmutype & MMU_SUN3) + mmu = "Sun-3"; + else if (m68k_mmutype & MMU_APOLLO) + mmu = "Apollo"; + else + mmu = "unknown"; + + clockfreq = loops_per_jiffy * HZ * clockfactor; + + seq_printf(m, "CPU:\t\t%s\n" "MMU:\t\t%s\n" "FPU:\t\t%s\n" "Clocking:\t%lu.%1luMHz\n" @@ -490,7 +456,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) clockfreq/1000000,(clockfreq/100000)%10, loops_per_jiffy/(500000/HZ),(loops_per_jiffy/(5000/HZ))%100, loops_per_jiffy); - return 0; + return 0; } static void *c_start(struct seq_file *m, loff_t *pos) @@ -506,44 +472,54 @@ static void c_stop(struct seq_file *m, void *v) { } struct seq_operations cpuinfo_op = { - .start = c_start, - .next = c_next, - .stop = c_stop, - .show = show_cpuinfo, + .start = c_start, + .next = c_next, + .stop = c_stop, + .show = show_cpuinfo, }; int get_hardware_list(char *buffer) { - int len = 0; - char model[80]; - unsigned long mem; - int i; + int len = 0; + char model[80]; + unsigned long mem; + int i; - if (mach_get_model) - mach_get_model(model); - else - strcpy(model, "Unknown m68k"); + if (mach_get_model) + mach_get_model(model); + else + strcpy(model, "Unknown m68k"); - len += sprintf(buffer+len, "Model:\t\t%s\n", model); - for (mem = 0, i = 0; i < m68k_num_memory; i++) - mem += m68k_memory[i].size; - len += sprintf(buffer+len, "System Memory:\t%ldK\n", mem>>10); + len += sprintf(buffer + len, "Model:\t\t%s\n", model); + for (mem = 0, i = 0; i < m68k_num_memory; i++) + mem += m68k_memory[i].size; + len += sprintf(buffer + len, "System Memory:\t%ldK\n", mem >> 10); - if (mach_get_hardware_list) - len += mach_get_hardware_list(buffer+len); + if (mach_get_hardware_list) + len += mach_get_hardware_list(buffer + len); - return(len); + return len; } void check_bugs(void) { #ifndef CONFIG_M68KFPU_EMU if (m68k_fputype == 0) { - printk( KERN_EMERG "*** YOU DO NOT HAVE A FLOATING POINT UNIT, " - "WHICH IS REQUIRED BY LINUX/M68K ***\n" ); - printk( KERN_EMERG "Upgrade your hardware or join the FPU " - "emulation project\n" ); - panic( "no FPU" ); + printk(KERN_EMERG "*** YOU DO NOT HAVE A FLOATING POINT UNIT, " + "WHICH IS REQUIRED BY LINUX/M68K ***\n"); + printk(KERN_EMERG "Upgrade your hardware or join the FPU " + "emulation project\n"); + panic("no FPU"); } #endif /* !CONFIG_M68KFPU_EMU */ } + +#ifdef CONFIG_ADB +static int __init adb_probe_sync_enable (char *str) { + extern int __adb_probe_sync; + __adb_probe_sync = 1; + return 1; +} + +__setup("adb_sync", adb_probe_sync_enable); +#endif /* CONFIG_ADB */ diff --git a/arch/m68k/lib/checksum.c b/arch/m68k/lib/checksum.c index aed3be2..cf6bb51 100644 --- a/arch/m68k/lib/checksum.c +++ b/arch/m68k/lib/checksum.c @@ -320,6 +320,9 @@ csum_partial_copy_from_user(const void __user *src, void *dst, return(sum); } +EXPORT_SYMBOL(csum_partial_copy_from_user); + + /* * copy from kernel space while checksumming, otherwise like csum_partial */ diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c index a1c7ec7..673a108 100644 --- a/arch/m68k/mac/baboon.c +++ b/arch/m68k/mac/baboon.c @@ -22,7 +22,7 @@ /* #define DEBUG_BABOON */ /* #define DEBUG_IRQS */ -int baboon_present,baboon_active; +int baboon_present; volatile struct baboon *baboon; irqreturn_t baboon_irq(int, void *); @@ -45,7 +45,6 @@ void __init baboon_init(void) baboon = (struct baboon *) BABOON_BASE; baboon_present = 1; - baboon_active = 0; printk("Baboon detected at %p\n", baboon); } @@ -66,26 +65,28 @@ void __init baboon_register_interrupts(void) irqreturn_t baboon_irq(int irq, void *dev_id) { - int irq_bit,i; + int irq_bit, irq_num; unsigned char events; #ifdef DEBUG_IRQS - printk("baboon_irq: mb_control %02X mb_ifr %02X mb_status %02X active %02X\n", + printk("baboon_irq: mb_control %02X mb_ifr %02X mb_status %02X\n", (uint) baboon->mb_control, (uint) baboon->mb_ifr, - (uint) baboon->mb_status, baboon_active); + (uint) baboon->mb_status); #endif if (!(events = baboon->mb_ifr & 0x07)) return IRQ_NONE; - for (i = 0, irq_bit = 1 ; i < 3 ; i++, irq_bit <<= 1) { - if (events & irq_bit/* & baboon_active*/) { - baboon_active &= ~irq_bit; - m68k_handle_int(IRQ_BABOON_0 + i); - baboon_active |= irq_bit; + irq_num = IRQ_BABOON_0; + irq_bit = 1; + do { + if (events & irq_bit) { baboon->mb_ifr &= ~irq_bit; + m68k_handle_int(irq_num); } - } + irq_bit <<= 1; + irq_num++; + } while(events >= irq_bit); #if 0 if (baboon->mb_ifr & 0x02) macide_ack_intr(NULL); /* for now we need to smash all interrupts */ @@ -95,21 +96,18 @@ irqreturn_t baboon_irq(int irq, void *dev_id) } void baboon_irq_enable(int irq) { - int irq_idx = IRQ_IDX(irq); - #ifdef DEBUG_IRQUSE printk("baboon_irq_enable(%d)\n", irq); #endif - baboon_active |= (1 << irq_idx); + /* FIXME: figure out how to mask and unmask baboon interrupt sources */ + enable_irq(IRQ_NUBUS_C); } void baboon_irq_disable(int irq) { - int irq_idx = IRQ_IDX(irq); - #ifdef DEBUG_IRQUSE printk("baboon_irq_disable(%d)\n", irq); #endif - baboon_active &= ~(1 << irq_idx); + disable_irq(IRQ_NUBUS_C); } void baboon_irq_clear(int irq) { diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c index 562b38d..5fd4132 100644 --- a/arch/m68k/mac/config.c +++ b/arch/m68k/mac/config.c @@ -59,15 +59,15 @@ extern struct mem_info m68k_ramdisk; extern char m68k_command_line[CL_SIZE]; -void *mac_env; /* Loaded by the boot asm */ +void *mac_env; /* Loaded by the boot asm */ /* The phys. video addr. - might be bogus on some machines */ unsigned long mac_orig_videoaddr; /* Mac specific timer functions */ -extern unsigned long mac_gettimeoffset (void); -extern int mac_hwclk (int, struct rtc_time *); -extern int mac_set_clock_mmss (unsigned long); +extern unsigned long mac_gettimeoffset(void); +extern int mac_hwclk(int, struct rtc_time *); +extern int mac_set_clock_mmss(unsigned long); extern int show_mac_interrupts(struct seq_file *, void *); extern void iop_preinit(void); extern void iop_init(void); @@ -82,10 +82,6 @@ extern void mac_mksound(unsigned int, unsigned int); extern void nubus_sweep_video(void); -/* Mac specific debug functions (in debug.c) */ -extern void mac_debug_init(void); -extern void mac_debugging_long(int, long); - static void mac_get_model(char *str); static void mac_sched_init(irq_handler_t vector) @@ -99,51 +95,52 @@ static void mac_sched_init(irq_handler_t vector) int __init mac_parse_bootinfo(const struct bi_record *record) { - int unknown = 0; - const u_long *data = record->data; + int unknown = 0; + const u_long *data = record->data; - switch (record->tag) { + switch (record->tag) { case BI_MAC_MODEL: - mac_bi_data.id = *data; - break; + mac_bi_data.id = *data; + break; case BI_MAC_VADDR: - mac_bi_data.videoaddr = *data; - break; + mac_bi_data.videoaddr = *data; + break; case BI_MAC_VDEPTH: - mac_bi_data.videodepth = *data; - break; + mac_bi_data.videodepth = *data; + break; case BI_MAC_VROW: - mac_bi_data.videorow = *data; - break; + mac_bi_data.videorow = *data; + break; case BI_MAC_VDIM: - mac_bi_data.dimensions = *data; - break; + mac_bi_data.dimensions = *data; + break; case BI_MAC_VLOGICAL: - mac_bi_data.videological = VIDEOMEMBASE + (*data & ~VIDEOMEMMASK); - mac_orig_videoaddr = *data; - break; + mac_bi_data.videological = VIDEOMEMBASE + (*data & ~VIDEOMEMMASK); + mac_orig_videoaddr = *data; + break; case BI_MAC_SCCBASE: - mac_bi_data.sccbase = *data; - break; + mac_bi_data.sccbase = *data; + break; case BI_MAC_BTIME: - mac_bi_data.boottime = *data; - break; + mac_bi_data.boottime = *data; + break; case BI_MAC_GMTBIAS: - mac_bi_data.gmtbias = *data; - break; + mac_bi_data.gmtbias = *data; + break; case BI_MAC_MEMSIZE: - mac_bi_data.memsize = *data; - break; + mac_bi_data.memsize = *data; + break; case BI_MAC_CPUID: - mac_bi_data.cpuid = *data; - break; - case BI_MAC_ROMBASE: - mac_bi_data.rombase = *data; - break; + mac_bi_data.cpuid = *data; + break; + case BI_MAC_ROMBASE: + mac_bi_data.rombase = *data; + break; default: - unknown = 1; - } - return(unknown); + unknown = 1; + break; + } + return unknown; } /* @@ -155,6 +152,7 @@ int __init mac_parse_bootinfo(const struct bi_record *record) static void mac_cache_card_flush(int writeback) { unsigned long flags; + local_irq_save(flags); via_flush_cache(); local_irq_restore(flags); @@ -162,28 +160,24 @@ static void mac_cache_card_flush(int writeback) void __init config_mac(void) { - if (!MACH_IS_MAC) { - printk(KERN_ERR "ERROR: no Mac, but config_mac() called!! \n"); - } + if (!MACH_IS_MAC) + printk(KERN_ERR "ERROR: no Mac, but config_mac() called!! \n"); - mach_sched_init = mac_sched_init; - mach_init_IRQ = mac_init_IRQ; - mach_get_model = mac_get_model; - mach_gettimeoffset = mac_gettimeoffset; + mach_sched_init = mac_sched_init; + mach_init_IRQ = mac_init_IRQ; + mach_get_model = mac_get_model; + mach_gettimeoffset = mac_gettimeoffset; #warning move to adb/via init #if 0 - mach_hwclk = mac_hwclk; + mach_hwclk = mac_hwclk; #endif - mach_set_clock_mmss = mac_set_clock_mmss; - mach_reset = mac_reset; - mach_halt = mac_poweroff; - mach_power_off = mac_poweroff; + mach_set_clock_mmss = mac_set_clock_mmss; + mach_reset = mac_reset; + mach_halt = mac_poweroff; + mach_power_off = mac_poweroff; mach_max_dma_address = 0xffffffff; -#if 0 - mach_debug_init = mac_debug_init; -#endif #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) - mach_beep = mac_mksound; + mach_beep = mac_mksound; #endif #ifdef CONFIG_HEARTBEAT #if 0 @@ -199,21 +193,22 @@ void __init config_mac(void) mac_identify(); mac_report_hardware(); - /* AFAIK only the IIci takes a cache card. The IIfx has onboard - cache ... someone needs to figure out how to tell if it's on or - not. */ + /* + * AFAIK only the IIci takes a cache card. The IIfx has onboard + * cache ... someone needs to figure out how to tell if it's on or + * not. + */ if (macintosh_config->ident == MAC_MODEL_IICI - || macintosh_config->ident == MAC_MODEL_IIFX) { + || macintosh_config->ident == MAC_MODEL_IIFX) mach_l2_flush = mac_cache_card_flush; - } /* * Check for machine specific fixups. */ #ifdef OLD_NUBUS_CODE - nubus_sweep_video(); + nubus_sweep_video(); #endif } @@ -233,8 +228,7 @@ void __init config_mac(void) struct mac_model *macintosh_config; EXPORT_SYMBOL(macintosh_config); -static struct mac_model mac_data_table[]= -{ +static struct mac_model mac_data_table[] = { /* * We'll pretend to be a Macintosh II, that's pretty safe. */ @@ -784,12 +778,12 @@ void mac_identify(void) if (!model) { /* no bootinfo model id -> NetBSD booter was used! */ /* XXX FIXME: breaks for model > 31 */ - model=(mac_bi_data.cpuid>>2)&63; - printk (KERN_WARNING "No bootinfo model ID, using cpuid instead (hey, use Penguin!)\n"); + model = (mac_bi_data.cpuid >> 2) & 63; + printk(KERN_WARNING "No bootinfo model ID, using cpuid instead (hey, use Penguin!)\n"); } macintosh_config = mac_data_table; - for (m = macintosh_config ; m->ident != -1 ; m++) { + for (m = macintosh_config; m->ident != -1; m++) { if (m->ident == model) { macintosh_config = m; break; @@ -801,27 +795,26 @@ void mac_identify(void) /* the serial ports set to "Faster" mode in MacOS. */ iop_preinit(); - mac_debug_init(); - printk (KERN_INFO "Detected Macintosh model: %d \n", model); + printk(KERN_INFO "Detected Macintosh model: %d \n", model); /* * Report booter data: */ - printk (KERN_DEBUG " Penguin bootinfo data:\n"); - printk (KERN_DEBUG " Video: addr 0x%lx row 0x%lx depth %lx dimensions %ld x %ld\n", + printk(KERN_DEBUG " Penguin bootinfo data:\n"); + printk(KERN_DEBUG " Video: addr 0x%lx row 0x%lx depth %lx dimensions %ld x %ld\n", mac_bi_data.videoaddr, mac_bi_data.videorow, mac_bi_data.videodepth, mac_bi_data.dimensions & 0xFFFF, mac_bi_data.dimensions >> 16); - printk (KERN_DEBUG " Videological 0x%lx phys. 0x%lx, SCC at 0x%lx \n", + printk(KERN_DEBUG " Videological 0x%lx phys. 0x%lx, SCC at 0x%lx \n", mac_bi_data.videological, mac_orig_videoaddr, mac_bi_data.sccbase); - printk (KERN_DEBUG " Boottime: 0x%lx GMTBias: 0x%lx \n", + printk(KERN_DEBUG " Boottime: 0x%lx GMTBias: 0x%lx \n", mac_bi_data.boottime, mac_bi_data.gmtbias); - printk (KERN_DEBUG " Machine ID: %ld CPUid: 0x%lx memory size: 0x%lx \n", + printk(KERN_DEBUG " Machine ID: %ld CPUid: 0x%lx memory size: 0x%lx \n", mac_bi_data.id, mac_bi_data.cpuid, mac_bi_data.memsize); #if 0 - printk ("Ramdisk: addr 0x%lx size 0x%lx\n", + printk("Ramdisk: addr 0x%lx size 0x%lx\n", m68k_ramdisk.addr, m68k_ramdisk.size); #endif @@ -830,22 +823,22 @@ void mac_identify(void) */ switch (macintosh_config->scsi_type) { case MAC_SCSI_OLD: - MACHW_SET(MAC_SCSI_80); - break; + MACHW_SET(MAC_SCSI_80); + break; case MAC_SCSI_QUADRA: case MAC_SCSI_QUADRA2: case MAC_SCSI_QUADRA3: - MACHW_SET(MAC_SCSI_96); - if ((macintosh_config->ident == MAC_MODEL_Q900) || - (macintosh_config->ident == MAC_MODEL_Q950)) - MACHW_SET(MAC_SCSI_96_2); - break; + MACHW_SET(MAC_SCSI_96); + if ((macintosh_config->ident == MAC_MODEL_Q900) || + (macintosh_config->ident == MAC_MODEL_Q950)) + MACHW_SET(MAC_SCSI_96_2); + break; default: - printk(KERN_WARNING "config.c: wtf: unknown scsi, using 53c80\n"); - MACHW_SET(MAC_SCSI_80); - break; - + printk(KERN_WARNING "config.c: wtf: unknown scsi, using 53c80\n"); + MACHW_SET(MAC_SCSI_80); + break; } + iop_init(); via_init(); oss_init(); @@ -860,6 +853,6 @@ void mac_report_hardware(void) static void mac_get_model(char *str) { - strcpy(str,"Macintosh "); + strcpy(str, "Macintosh "); strcat(str, macintosh_config->name); } diff --git a/arch/m68k/mac/debug.c b/arch/m68k/mac/debug.c index 4eeb09d..7a5bed5 100644 --- a/arch/m68k/mac/debug.c +++ b/arch/m68k/mac/debug.c @@ -27,10 +27,6 @@ #include <asm/machw.h> #include <asm/macints.h> -extern char m68k_debug_device[]; - -extern struct compat_bootinfo compat_boot_info; - extern unsigned long mac_videobase; extern unsigned long mac_videodepth; extern unsigned long mac_rowbytes; @@ -52,7 +48,7 @@ extern void mac_serial_print(const char *); */ #ifdef DEBUG_SCREEN -static int peng=0, line=0; +static int peng, line; #endif void mac_debugging_short(int pos, short num) @@ -74,15 +70,14 @@ void mac_debugging_short(int pos, short num) } /* calculate current offset */ - pengoffset=(unsigned char *)(mac_videobase+(150+line*2)*mac_rowbytes) - +80*peng; + pengoffset = (unsigned char *)mac_videobase + + (150+line*2) * mac_rowbytes) + 80 * peng; - pptr=pengoffset; + pptr = pengoffset; - for(i=0;i<8*sizeof(short);i++) /* # of bits */ - { + for (i = 0; i < 8 * sizeof(short); i++) { /* # of bits */ /* value mask for bit i, reverse order */ - *pptr++ = (num & ( 1 << (8*sizeof(short)-i-1) ) ? 0xFF : 0x00); + *pptr++ = (num & (1 << (8*sizeof(short)-i-1)) ? 0xFF : 0x00); } peng++; @@ -115,11 +110,10 @@ void mac_debugging_long(int pos, long addr) pengoffset=(unsigned char *)(mac_videobase+(150+line*2)*mac_rowbytes) +80*peng; - pptr=pengoffset; + pptr = pengoffset; - for(i=0;i<8*sizeof(long);i++) /* # of bits */ - { - *pptr++ = (addr & ( 1 << (8*sizeof(long)-i-1) ) ? 0xFF : 0x00); + for (i = 0; i < 8 * sizeof(long); i++) { /* # of bits */ + *pptr++ = (addr & (1 << (8*sizeof(long)-i-1)) ? 0xFF : 0x00); } peng++; @@ -136,16 +130,15 @@ void mac_debugging_long(int pos, long addr) * TODO: serial debug code */ -struct mac_SCC - { - u_char cha_b_ctrl; - u_char char_dummy1; - u_char cha_a_ctrl; - u_char char_dummy2; - u_char cha_b_data; - u_char char_dummy3; - u_char cha_a_data; - }; +struct mac_SCC { + u_char cha_b_ctrl; + u_char char_dummy1; + u_char cha_a_ctrl; + u_char char_dummy2; + u_char cha_b_data; + u_char char_dummy3; + u_char cha_a_data; +}; # define scc (*((volatile struct mac_SCC*)mac_bi_data.sccbase)) @@ -158,9 +151,9 @@ int mac_SCC_reset_done; static int scc_port = -1; static struct console mac_console_driver = { - .name = "debug", - .flags = CON_PRINTBUFFER, - .index = -1, + .name = "debug", + .flags = CON_PRINTBUFFER, + .index = -1, }; /* @@ -178,8 +171,8 @@ static struct console mac_console_driver = { * this driver if Mac. */ -void mac_debug_console_write (struct console *co, const char *str, - unsigned int count) +void mac_debug_console_write(struct console *co, const char *str, + unsigned int count) { mac_serial_print(str); } @@ -190,48 +183,50 @@ void mac_debug_console_write (struct console *co, const char *str, #define uSEC 1 -static inline void mac_sccb_out (char c) +static inline void mac_sccb_out(char c) { - int i; - do { - for( i = uSEC; i > 0; --i ) + int i; + + do { + for (i = uSEC; i > 0; --i) + barrier(); + } while (!(scc.cha_b_ctrl & 0x04)); /* wait for tx buf empty */ + for (i = uSEC; i > 0; --i) barrier(); - } while (!(scc.cha_b_ctrl & 0x04)); /* wait for tx buf empty */ - for( i = uSEC; i > 0; --i ) - barrier(); - scc.cha_b_data = c; + scc.cha_b_data = c; } -static inline void mac_scca_out (char c) +static inline void mac_scca_out(char c) { - int i; - do { - for( i = uSEC; i > 0; --i ) + int i; + + do { + for (i = uSEC; i > 0; --i) + barrier(); + } while (!(scc.cha_a_ctrl & 0x04)); /* wait for tx buf empty */ + for (i = uSEC; i > 0; --i) barrier(); - } while (!(scc.cha_a_ctrl & 0x04)); /* wait for tx buf empty */ - for( i = uSEC; i > 0; --i ) - barrier(); - scc.cha_a_data = c; + scc.cha_a_data = c; } -void mac_sccb_console_write (struct console *co, const char *str, - unsigned int count) +void mac_sccb_console_write(struct console *co, const char *str, + unsigned int count) { - while (count--) { - if (*str == '\n') - mac_sccb_out( '\r' ); - mac_sccb_out( *str++ ); - } + while (count--) { + if (*str == '\n') + mac_sccb_out('\r'); + mac_sccb_out(*str++); + } } -void mac_scca_console_write (struct console *co, const char *str, - unsigned int count) +void mac_scca_console_write(struct console *co, const char *str, + unsigned int count) { - while (count--) { - if (*str == '\n') - mac_scca_out( '\r' ); - mac_scca_out( *str++ ); - } + while (count--) { + if (*str == '\n') + mac_scca_out('\r'); + mac_scca_out(*str++); + } } @@ -239,41 +234,41 @@ void mac_scca_console_write (struct console *co, const char *str, * SCC serial ports. They're used by the debugging interface, kgdb, and the * serial console code. */ #define SCCB_WRITE(reg,val) \ - do { \ - int i; \ - scc.cha_b_ctrl = (reg); \ - for( i = uSEC; i > 0; --i ) \ - barrier(); \ - scc.cha_b_ctrl = (val); \ - for( i = uSEC; i > 0; --i ) \ - barrier(); \ - } while(0) + do { \ + int i; \ + scc.cha_b_ctrl = (reg); \ + for (i = uSEC; i > 0; --i) \ + barrier(); \ + scc.cha_b_ctrl = (val); \ + for (i = uSEC; i > 0; --i) \ + barrier(); \ + } while(0) #define SCCA_WRITE(reg,val) \ - do { \ - int i; \ - scc.cha_a_ctrl = (reg); \ - for( i = uSEC; i > 0; --i ) \ - barrier(); \ - scc.cha_a_ctrl = (val); \ - for( i = uSEC; i > 0; --i ) \ - barrier(); \ - } while(0) + do { \ + int i; \ + scc.cha_a_ctrl = (reg); \ + for (i = uSEC; i > 0; --i) \ + barrier(); \ + scc.cha_a_ctrl = (val); \ + for (i = uSEC; i > 0; --i) \ + barrier(); \ + } while(0) /* loops_per_jiffy isn't initialized yet, so we can't use udelay(). This does a * delay of ~ 60us. */ /* Mac: loops_per_jiffy min. 19000 ^= .5 us; MFPDELAY was 0.6 us*/ -#define LONG_DELAY() \ - do { \ - int i; \ - for( i = 60*uSEC; i > 0; --i ) \ - barrier(); \ - } while(0) +#define LONG_DELAY() \ + do { \ + int i; \ + for (i = 60*uSEC; i > 0; --i) \ + barrier(); \ + } while(0) #ifndef CONFIG_SERIAL_CONSOLE -static void __init mac_init_scc_port( int cflag, int port ) +static void __init mac_init_scc_port(int cflag, int port) #else -void mac_init_scc_port( int cflag, int port ) +void mac_init_scc_port(int cflag, int port) #endif { extern int mac_SCC_reset_done; @@ -292,106 +287,102 @@ void mac_init_scc_port( int cflag, int port ) /* reg12 (BRG low) */ { 94, 62, 46, 22, 10, 4, 1, 0, 0 }; - int baud = cflag & CBAUD; - int clksrc, clkmode, div, reg3, reg5; - - if (cflag & CBAUDEX) - baud += B38400; - if (baud < B1200 || baud > B38400+2) - baud = B9600; /* use default 9600bps for non-implemented rates */ - baud -= B1200; /* tables starts at 1200bps */ - - clksrc = clksrc_table[baud]; - clkmode = clkmode_table[baud]; - div = div_table[baud]; - - reg3 = (((cflag & CSIZE) == CS8) ? 0xc0 : 0x40); - reg5 = (((cflag & CSIZE) == CS8) ? 0x60 : 0x20) | 0x82 /* assert DTR/RTS */; - - if (port == 1) { - (void)scc.cha_b_ctrl; /* reset reg pointer */ - SCCB_WRITE( 9, 0xc0 ); /* reset */ - LONG_DELAY(); /* extra delay after WR9 access */ - SCCB_WRITE( 4, (cflag & PARENB) ? ((cflag & PARODD) ? 0x01 : 0x03) : 0 | + int baud = cflag & CBAUD; + int clksrc, clkmode, div, reg3, reg5; + + if (cflag & CBAUDEX) + baud += B38400; + if (baud < B1200 || baud > B38400+2) + baud = B9600; /* use default 9600bps for non-implemented rates */ + baud -= B1200; /* tables starts at 1200bps */ + + clksrc = clksrc_table[baud]; + clkmode = clkmode_table[baud]; + div = div_table[baud]; + + reg3 = (((cflag & CSIZE) == CS8) ? 0xc0 : 0x40); + reg5 = (((cflag & CSIZE) == CS8) ? 0x60 : 0x20) | 0x82 /* assert DTR/RTS */; + + if (port == 1) { + (void)scc.cha_b_ctrl; /* reset reg pointer */ + SCCB_WRITE(9, 0xc0); /* reset */ + LONG_DELAY(); /* extra delay after WR9 access */ + SCCB_WRITE(4, (cflag & PARENB) ? ((cflag & PARODD) ? 0x01 : 0x03) : 0 | + 0x04 /* 1 stopbit */ | + clkmode); + SCCB_WRITE(3, reg3); + SCCB_WRITE(5, reg5); + SCCB_WRITE(9, 0); /* no interrupts */ + LONG_DELAY(); /* extra delay after WR9 access */ + SCCB_WRITE(10, 0); /* NRZ mode */ + SCCB_WRITE(11, clksrc); /* main clock source */ + SCCB_WRITE(12, div); /* BRG value */ + SCCB_WRITE(13, 0); /* BRG high byte */ + SCCB_WRITE(14, 1); + SCCB_WRITE(3, reg3 | 1); + SCCB_WRITE(5, reg5 | 8); + } else if (port == 0) { + (void)scc.cha_a_ctrl; /* reset reg pointer */ + SCCA_WRITE(9, 0xc0); /* reset */ + LONG_DELAY(); /* extra delay after WR9 access */ + SCCA_WRITE(4, (cflag & PARENB) ? ((cflag & PARODD) ? 0x01 : 0x03) : 0 | 0x04 /* 1 stopbit */ | - clkmode ); - SCCB_WRITE( 3, reg3 ); - SCCB_WRITE( 5, reg5 ); - SCCB_WRITE( 9, 0 ); /* no interrupts */ - LONG_DELAY(); /* extra delay after WR9 access */ - SCCB_WRITE( 10, 0 ); /* NRZ mode */ - SCCB_WRITE( 11, clksrc ); /* main clock source */ - SCCB_WRITE( 12, div ); /* BRG value */ - SCCB_WRITE( 13, 0 ); /* BRG high byte */ - SCCB_WRITE( 14, 1 ); - SCCB_WRITE( 3, reg3 | 1 ); - SCCB_WRITE( 5, reg5 | 8 ); - } else if (port == 0) { - (void)scc.cha_a_ctrl; /* reset reg pointer */ - SCCA_WRITE( 9, 0xc0 ); /* reset */ - LONG_DELAY(); /* extra delay after WR9 access */ - SCCA_WRITE( 4, (cflag & PARENB) ? ((cflag & PARODD) ? 0x01 : 0x03) : 0 | - 0x04 /* 1 stopbit */ | - clkmode ); - SCCA_WRITE( 3, reg3 ); - SCCA_WRITE( 5, reg5 ); - SCCA_WRITE( 9, 0 ); /* no interrupts */ - LONG_DELAY(); /* extra delay after WR9 access */ - SCCA_WRITE( 10, 0 ); /* NRZ mode */ - SCCA_WRITE( 11, clksrc ); /* main clock source */ - SCCA_WRITE( 12, div ); /* BRG value */ - SCCA_WRITE( 13, 0 ); /* BRG high byte */ - SCCA_WRITE( 14, 1 ); - SCCA_WRITE( 3, reg3 | 1 ); - SCCA_WRITE( 5, reg5 | 8 ); - } - - mac_SCC_reset_done = 1; - mac_SCC_init_done = 1; + clkmode); + SCCA_WRITE(3, reg3); + SCCA_WRITE(5, reg5); + SCCA_WRITE(9, 0); /* no interrupts */ + LONG_DELAY(); /* extra delay after WR9 access */ + SCCA_WRITE(10, 0); /* NRZ mode */ + SCCA_WRITE(11, clksrc); /* main clock source */ + SCCA_WRITE(12, div); /* BRG value */ + SCCA_WRITE(13, 0); /* BRG high byte */ + SCCA_WRITE(14, 1); + SCCA_WRITE(3, reg3 | 1); + SCCA_WRITE(5, reg5 | 8); + } + + mac_SCC_reset_done = 1; + mac_SCC_init_done = 1; } #endif /* DEBUG_SERIAL */ -void mac_init_scca_port( int cflag ) +void mac_init_scca_port(int cflag) { mac_init_scc_port(cflag, 0); } -void mac_init_sccb_port( int cflag ) +void mac_init_sccb_port(int cflag) { mac_init_scc_port(cflag, 1); } -void __init mac_debug_init(void) +static int __init mac_debug_setup(char *arg) { + if (!MACH_IS_MAC) + return 0; + #ifdef DEBUG_SERIAL - if ( !strcmp( m68k_debug_device, "ser" ) - || !strcmp( m68k_debug_device, "ser1" )) { - /* Mac modem port */ - mac_init_scc_port( B9600|CS8, 0 ); - mac_console_driver.write = mac_scca_console_write; - scc_port = 0; - } - else if (!strcmp( m68k_debug_device, "ser2" )) { - /* Mac printer port */ - mac_init_scc_port( B9600|CS8, 1 ); - mac_console_driver.write = mac_sccb_console_write; - scc_port = 1; - } + if (!strcmp(arg, "ser") || !strcmp(arg, "ser1")) { + /* Mac modem port */ + mac_init_scc_port(B9600|CS8, 0); + mac_console_driver.write = mac_scca_console_write; + scc_port = 0; + } else if (!strcmp(arg, "ser2")) { + /* Mac printer port */ + mac_init_scc_port(B9600|CS8, 1); + mac_console_driver.write = mac_sccb_console_write; + scc_port = 1; + } #endif #ifdef DEBUG_HEADS - if ( !strcmp( m68k_debug_device, "scn" ) - || !strcmp( m68k_debug_device, "con" )) { - /* display, using head.S console routines */ - mac_console_driver.write = mac_debug_console_write; - } + if (!strcmp(arg, "scn") || !strcmp(arg, "con")) { + /* display, using head.S console routines */ + mac_console_driver.write = mac_debug_console_write; + } #endif - if (mac_console_driver.write) - register_console(&mac_console_driver); + if (mac_console_driver.write) + register_console(&mac_console_driver); + return 0; } -/* - * Local variables: - * c-indent-level: 4 - * tab-width: 8 - * End: - */ +early_param("debug", mac_debug_setup); diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c index f6fcd75..0fc72d8f 100644 --- a/arch/m68k/mac/macints.c +++ b/arch/m68k/mac/macints.c @@ -219,7 +219,7 @@ static void mac_disable_irq(unsigned int irq); static struct irq_controller mac_irq_controller = { .name = "mac", - .lock = SPIN_LOCK_UNLOCKED, + .lock = __SPIN_LOCK_UNLOCKED(mac_irq_controller.lock), .enable = mac_enable_irq, .disable = mac_disable_irq, }; diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c index 6369081..d7be169 100644 --- a/arch/m68k/mac/oss.c +++ b/arch/m68k/mac/oss.c @@ -109,13 +109,11 @@ irqreturn_t oss_irq(int irq, void *dev_id) /* FIXME: how do you clear a pending IRQ? */ if (events & OSS_IP_SOUND) { - /* FIXME: call sound handler */ oss->irq_pending &= ~OSS_IP_SOUND; + /* FIXME: call sound handler */ } else if (events & OSS_IP_SCSI) { - oss->irq_level[OSS_SCSI] = OSS_IRQLEV_DISABLED; - m68k_handle_int(IRQ_MAC_SCSI); oss->irq_pending &= ~OSS_IP_SCSI; - oss->irq_level[OSS_SCSI] = OSS_IRQLEV_SCSI; + m68k_handle_int(IRQ_MAC_SCSI); } else { /* FIXME: error check here? */ } @@ -143,14 +141,16 @@ irqreturn_t oss_nubus_irq(int irq, void *dev_id) #endif /* There are only six slots on the OSS, not seven */ - for (i = 0, irq_bit = 1 ; i < 6 ; i++, irq_bit <<= 1) { + i = 6; + irq_bit = 0x40; + do { + --i; + irq_bit >>= 1; if (events & irq_bit) { - oss->irq_level[i] = OSS_IRQLEV_DISABLED; - m68k_handle_int(NUBUS_SOURCE_BASE + i); oss->irq_pending &= ~irq_bit; - oss->irq_level[i] = OSS_IRQLEV_NUBUS; + m68k_handle_int(NUBUS_SOURCE_BASE + i); } - } + } while(events & (irq_bit - 1)); return IRQ_HANDLED; } diff --git a/arch/m68k/mac/psc.c b/arch/m68k/mac/psc.c index 15378a5..d66f723 100644 --- a/arch/m68k/mac/psc.c +++ b/arch/m68k/mac/psc.c @@ -131,11 +131,8 @@ irqreturn_t psc_irq(int irq, void *dev_id) { int pIFR = pIFRbase + ((int) dev_id); int pIER = pIERbase + ((int) dev_id); - int base_irq; - int irq_bit,i; - unsigned char events; - - base_irq = irq << 3; + int irq_num; + unsigned char irq_bit, events; #ifdef DEBUG_IRQS printk("psc_irq: irq %d pIFR = 0x%02X pIER = 0x%02X\n", @@ -146,14 +143,16 @@ irqreturn_t psc_irq(int irq, void *dev_id) if (!events) return IRQ_NONE; - for (i = 0, irq_bit = 1 ; i < 4 ; i++, irq_bit <<= 1) { - if (events & irq_bit) { - psc_write_byte(pIER, irq_bit); - m68k_handle_int(base_irq + i); + irq_num = irq << 3; + irq_bit = 1; + do { + if (events & irq_bit) { psc_write_byte(pIFR, irq_bit); - psc_write_byte(pIER, irq_bit | 0x80); + m68k_handle_int(irq_num); } - } + irq_num++; + irq_bit <<= 1; + } while (events >= irq_bit); return IRQ_HANDLED; } diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c index e27735b..d5cac72 100644 --- a/arch/m68k/mac/via.c +++ b/arch/m68k/mac/via.c @@ -13,6 +13,10 @@ * for info. A full-text web search on 6522 AND VIA will probably also * net some usefulness. <cananian@alumni.princeton.edu> 20apr1999 * + * Additional data is here (the SY6522 was used in the Mac II etc): + * http://www.6502.org/documents/datasheets/synertek/synertek_sy6522.pdf + * http://www.6502.org/documents/datasheets/synertek/synertek_sy6522_programming_reference.pdf + * * PRAM/RTC access algorithms are from the NetBSD RTC toolkit version 1.08b * by Erik Vogan and adapted to Linux by Joshua M. Thompson (funaho@jurai.org) * @@ -37,7 +41,7 @@ volatile __u8 *via1, *via2; /* See note in mac_via.h about how this is possibly not useful */ volatile long *via_memory_bogon=(long *)&via_memory_bogon; #endif -int rbv_present,via_alt_mapping; +int rbv_present, via_alt_mapping; __u8 rbv_clear; /* @@ -60,7 +64,19 @@ static int gIER,gIFR,gBufA,gBufB; #define MAC_CLOCK_LOW (MAC_CLOCK_TICK&0xFF) #define MAC_CLOCK_HIGH (MAC_CLOCK_TICK>>8) -static int nubus_active; +/* To disable a NuBus slot on Quadras we make the slot IRQ lines outputs, set + * high. On RBV we just use the slot interrupt enable register. On Macs with + * genuine VIA chips we must use nubus_disabled to keep track of disabled slot + * interrupts. When any slot IRQ is disabled we mask the (edge triggered) CA1 + * or "SLOTS" interrupt. When no slot is disabled, we unmask the CA1 interrupt. + * So, on genuine VIAs, having more than one NuBus IRQ can mean trouble, + * because closing one of those drivers can mask all of the NuBus interrupts. + * Also, since we can't mask the unregistered slot IRQs on genuine VIAs, it's + * possible to get interrupts from cards that MacOS or the ROM has configured + * but we have not. FWIW, "Designing Cards and Drivers for Macintosh II and + * Macintosh SE", page 9-8, says, a slot IRQ with no driver would crash MacOS. + */ +static u8 nubus_disabled; void via_debug_dump(void); irqreturn_t via1_irq(int, void *); @@ -138,11 +154,11 @@ void __init via_init(void) printk(KERN_INFO "VIA2 at %p is ", via2); if (rbv_present) { - printk(KERN_INFO "an RBV\n"); + printk("an RBV\n"); } else if (oss_present) { - printk(KERN_INFO "an OSS\n"); + printk("an OSS\n"); } else { - printk(KERN_INFO "a 6522 or clone\n"); + printk("a 6522 or clone\n"); } #ifdef DEBUG_VIA @@ -163,6 +179,7 @@ void __init via_init(void) via1[vT2CL] = 0; via1[vT2CH] = 0; via1[vACR] &= 0x3F; + via1[vACR] &= ~0x03; /* disable port A & B latches */ /* * SE/30: disable video IRQ @@ -193,8 +210,14 @@ void __init via_init(void) /* that the IIfx emulates this alternate mapping using the OSS. */ switch(macintosh_config->ident) { + case MAC_MODEL_P475: + case MAC_MODEL_P475F: + case MAC_MODEL_P575: + case MAC_MODEL_Q605: + case MAC_MODEL_Q605_ACC: case MAC_MODEL_C610: case MAC_MODEL_Q610: + case MAC_MODEL_Q630: case MAC_MODEL_C650: case MAC_MODEL_Q650: case MAC_MODEL_Q700: @@ -228,6 +251,22 @@ void __init via_init(void) via2[vT2CL] = 0; via2[vT2CH] = 0; via2[vACR] &= 0x3F; + via2[vACR] &= ~0x03; /* disable port A & B latches */ + } + + /* + * Set vPCR for SCSI interrupts (but not on RBV) + */ + if (!rbv_present) { + if (macintosh_config->scsi_type == MAC_SCSI_OLD) { + /* CB2 (IRQ) indep. input, positive edge */ + /* CA2 (DRQ) indep. input, positive edge */ + via2[vPCR] = 0x66; + } else { + /* CB2 (IRQ) indep. input, negative edge */ + /* CA2 (DRQ) indep. input, negative edge */ + via2[vPCR] = 0x22; + } } } @@ -356,78 +395,75 @@ int via_get_cache_disable(void) void __init via_nubus_init(void) { - /* don't set nubus_active = 0 here, it kills the Baboon */ - /* interrupt that we've already registered. */ - /* unlock nubus transactions */ - if (!rbv_present) { + if ((macintosh_config->adb_type != MAC_ADB_PB1) && + (macintosh_config->adb_type != MAC_ADB_PB2)) { /* set the line to be an output on non-RBV machines */ - if ((macintosh_config->adb_type != MAC_ADB_PB1) && - (macintosh_config->adb_type != MAC_ADB_PB2)) { + if (!rbv_present) via2[vDirB] |= 0x02; - } - } - /* this seems to be an ADB bit on PMU machines */ - /* according to MkLinux. -- jmt */ - - if ((macintosh_config->adb_type != MAC_ADB_PB1) && - (macintosh_config->adb_type != MAC_ADB_PB2)) { + /* this seems to be an ADB bit on PMU machines */ + /* according to MkLinux. -- jmt */ via2[gBufB] |= 0x02; } - /* disable nubus slot interrupts. */ - if (rbv_present) { + /* Disable all the slot interrupts (where possible). */ + + switch (macintosh_config->via_type) { + case MAC_VIA_II: + /* Just make the port A lines inputs. */ + switch(macintosh_config->ident) { + case MAC_MODEL_II: + case MAC_MODEL_IIX: + case MAC_MODEL_IICX: + case MAC_MODEL_SE30: + /* The top two bits are RAM size outputs. */ + via2[vDirA] &= 0xC0; + break; + default: + via2[vDirA] &= 0x80; + } + break; + case MAC_VIA_IIci: + /* RBV. Disable all the slot interrupts. SIER works like IER. */ via2[rSIER] = 0x7F; - via2[rSIER] = nubus_active | 0x80; - } else { - /* These are ADB bits on PMU */ + break; + case MAC_VIA_QUADRA: + /* Disable the inactive slot interrupts by making those lines outputs. */ if ((macintosh_config->adb_type != MAC_ADB_PB1) && - (macintosh_config->adb_type != MAC_ADB_PB2)) { - switch(macintosh_config->ident) - { - case MAC_MODEL_II: - case MAC_MODEL_IIX: - case MAC_MODEL_IICX: - case MAC_MODEL_SE30: - via2[vBufA] |= 0x3F; - via2[vDirA] = ~nubus_active | 0xc0; - break; - default: - via2[vBufA] = 0xFF; - via2[vDirA] = ~nubus_active; - } + (macintosh_config->adb_type != MAC_ADB_PB2)) { + via2[vBufA] |= 0x7F; + via2[vDirA] |= 0x7F; } + break; } } /* * The generic VIA interrupt routines (shamelessly stolen from Alan Cox's * via6522.c :-), disable/pending masks added. - * - * The new interrupt architecture in macints.c takes care of a lot of the - * gruntwork for us, including tallying the interrupts and calling the - * handlers on the linked list. All we need to do here is basically generate - * the machspec interrupt number after clearing the interrupt. */ irqreturn_t via1_irq(int irq, void *dev_id) { - int irq_bit, i; - unsigned char events, mask; + int irq_num; + unsigned char irq_bit, events; - mask = via1[vIER] & 0x7F; - if (!(events = via1[vIFR] & mask)) + events = via1[vIFR] & via1[vIER] & 0x7F; + if (!events) return IRQ_NONE; - for (i = 0, irq_bit = 1 ; i < 7 ; i++, irq_bit <<= 1) + irq_num = VIA1_SOURCE_BASE; + irq_bit = 1; + do { if (events & irq_bit) { - via1[vIER] = irq_bit; - m68k_handle_int(VIA1_SOURCE_BASE + i); via1[vIFR] = irq_bit; - via1[vIER] = irq_bit | 0x80; + m68k_handle_int(irq_num); } + ++irq_num; + irq_bit <<= 1; + } while (events >= irq_bit); #if 0 /* freakin' pmu is doing weird stuff */ if (!oss_present) { @@ -448,20 +484,23 @@ irqreturn_t via1_irq(int irq, void *dev_id) irqreturn_t via2_irq(int irq, void *dev_id) { - int irq_bit, i; - unsigned char events, mask; + int irq_num; + unsigned char irq_bit, events; - mask = via2[gIER] & 0x7F; - if (!(events = via2[gIFR] & mask)) + events = via2[gIFR] & via2[gIER] & 0x7F; + if (!events) return IRQ_NONE; - for (i = 0, irq_bit = 1 ; i < 7 ; i++, irq_bit <<= 1) + irq_num = VIA2_SOURCE_BASE; + irq_bit = 1; + do { if (events & irq_bit) { - via2[gIER] = irq_bit; via2[gIFR] = irq_bit | rbv_clear; - m68k_handle_int(VIA2_SOURCE_BASE + i); - via2[gIER] = irq_bit | 0x80; + m68k_handle_int(irq_num); } + ++irq_num; + irq_bit <<= 1; + } while (events >= irq_bit); return IRQ_HANDLED; } @@ -472,71 +511,75 @@ irqreturn_t via2_irq(int irq, void *dev_id) irqreturn_t via_nubus_irq(int irq, void *dev_id) { - int irq_bit, i; - unsigned char events; - - if (!(events = ~via2[gBufA] & nubus_active)) + int slot_irq; + unsigned char slot_bit, events; + + events = ~via2[gBufA] & 0x7F; + if (rbv_present) + events &= via2[rSIER]; + else + events &= ~via2[vDirA]; + if (!events) return IRQ_NONE; - for (i = 0, irq_bit = 1 ; i < 7 ; i++, irq_bit <<= 1) { - if (events & irq_bit) { - via_irq_disable(NUBUS_SOURCE_BASE + i); - m68k_handle_int(NUBUS_SOURCE_BASE + i); - via_irq_enable(NUBUS_SOURCE_BASE + i); - } - } + do { + slot_irq = IRQ_NUBUS_F; + slot_bit = 0x40; + do { + if (events & slot_bit) { + events &= ~slot_bit; + m68k_handle_int(slot_irq); + } + --slot_irq; + slot_bit >>= 1; + } while (events); + + /* clear the CA1 interrupt and make certain there's no more. */ + via2[gIFR] = 0x02 | rbv_clear; + events = ~via2[gBufA] & 0x7F; + if (rbv_present) + events &= via2[rSIER]; + else + events &= ~via2[vDirA]; + } while (events); return IRQ_HANDLED; } void via_irq_enable(int irq) { int irq_src = IRQ_SRC(irq); int irq_idx = IRQ_IDX(irq); - int irq_bit = 1 << irq_idx; #ifdef DEBUG_IRQUSE printk(KERN_DEBUG "via_irq_enable(%d)\n", irq); #endif if (irq_src == 1) { - via1[vIER] = irq_bit | 0x80; + via1[vIER] = IER_SET_BIT(irq_idx); } else if (irq_src == 2) { - /* - * Set vPCR for SCSI interrupts (but not on RBV) - */ - if ((irq_idx == 0) && !rbv_present) { - if (macintosh_config->scsi_type == MAC_SCSI_OLD) { - /* CB2 (IRQ) indep. input, positive edge */ - /* CA2 (DRQ) indep. input, positive edge */ - via2[vPCR] = 0x66; - } else { - /* CB2 (IRQ) indep. input, negative edge */ - /* CA2 (DRQ) indep. input, negative edge */ - via2[vPCR] = 0x22; - } - } - via2[gIER] = irq_bit | 0x80; + if (irq != IRQ_MAC_NUBUS || nubus_disabled == 0) + via2[gIER] = IER_SET_BIT(irq_idx); } else if (irq_src == 7) { - nubus_active |= irq_bit; - if (rbv_present) { - /* enable the slot interrupt. SIER works like IER. */ + switch (macintosh_config->via_type) { + case MAC_VIA_II: + nubus_disabled &= ~(1 << irq_idx); + /* Enable the CA1 interrupt when no slot is disabled. */ + if (!nubus_disabled) + via2[gIER] = IER_SET_BIT(1); + break; + case MAC_VIA_IIci: + /* On RBV, enable the slot interrupt. + * SIER works like IER. + */ via2[rSIER] = IER_SET_BIT(irq_idx); - } else { - /* Make sure the bit is an input, to enable the irq */ - /* But not on PowerBooks, that's ADB... */ + break; + case MAC_VIA_QUADRA: + /* Make the port A line an input to enable the slot irq. + * But not on PowerBooks, that's ADB. + */ if ((macintosh_config->adb_type != MAC_ADB_PB1) && - (macintosh_config->adb_type != MAC_ADB_PB2)) { - switch(macintosh_config->ident) - { - case MAC_MODEL_II: - case MAC_MODEL_IIX: - case MAC_MODEL_IICX: - case MAC_MODEL_SE30: - via2[vDirA] &= (~irq_bit | 0xc0); - break; - default: - via2[vDirA] &= ~irq_bit; - } - } + (macintosh_config->adb_type != MAC_ADB_PB2)) + via2[vDirA] &= ~(1 << irq_idx); + break; } } } @@ -544,29 +587,31 @@ void via_irq_enable(int irq) { void via_irq_disable(int irq) { int irq_src = IRQ_SRC(irq); int irq_idx = IRQ_IDX(irq); - int irq_bit = 1 << irq_idx; #ifdef DEBUG_IRQUSE printk(KERN_DEBUG "via_irq_disable(%d)\n", irq); #endif if (irq_src == 1) { - via1[vIER] = irq_bit; + via1[vIER] = IER_CLR_BIT(irq_idx); } else if (irq_src == 2) { - via2[gIER] = irq_bit; + via2[gIER] = IER_CLR_BIT(irq_idx); } else if (irq_src == 7) { - if (rbv_present) { - /* disable the slot interrupt. SIER works like IER. */ + switch (macintosh_config->via_type) { + case MAC_VIA_II: + nubus_disabled |= 1 << irq_idx; + if (nubus_disabled) + via2[gIER] = IER_CLR_BIT(1); + break; + case MAC_VIA_IIci: via2[rSIER] = IER_CLR_BIT(irq_idx); - } else { - /* disable the nubus irq by changing dir to output */ - /* except on PMU */ + break; + case MAC_VIA_QUADRA: if ((macintosh_config->adb_type != MAC_ADB_PB1) && - (macintosh_config->adb_type != MAC_ADB_PB2)) { - via2[vDirA] |= irq_bit; - } + (macintosh_config->adb_type != MAC_ADB_PB2)) + via2[vDirA] |= 1 << irq_idx; + break; } - nubus_active &= ~irq_bit; } } @@ -580,7 +625,9 @@ void via_irq_clear(int irq) { } else if (irq_src == 2) { via2[gIFR] = irq_bit | rbv_clear; } else if (irq_src == 7) { - /* FIXME: hmm.. */ + /* FIXME: There is no way to clear an individual nubus slot + * IRQ flag, other than getting the device to do it. + */ } } @@ -600,6 +647,7 @@ int via_irq_pending(int irq) } else if (irq_src == 2) { return via2[gIFR] & irq_bit; } else if (irq_src == 7) { + /* Always 0 for MAC_VIA_QUADRA if the slot irq is disabled. */ return ~via2[gBufA] & irq_bit; } return 0; diff --git a/arch/m68k/q40/config.c b/arch/m68k/q40/config.c index 92f873c..476e18e 100644 --- a/arch/m68k/q40/config.c +++ b/arch/m68k/q40/config.c @@ -35,35 +35,35 @@ #include <asm/machdep.h> #include <asm/q40_master.h> -extern irqreturn_t q40_process_int (int level, struct pt_regs *regs); -extern void q40_init_IRQ (void); +extern irqreturn_t q40_process_int(int level, struct pt_regs *regs); +extern void q40_init_IRQ(void); static void q40_get_model(char *model); static int q40_get_hardware_list(char *buffer); extern void q40_sched_init(irq_handler_t handler); -extern unsigned long q40_gettimeoffset (void); -extern int q40_hwclk (int, struct rtc_time *); -extern unsigned int q40_get_ss (void); -extern int q40_set_clock_mmss (unsigned long); +extern unsigned long q40_gettimeoffset(void); +extern int q40_hwclk(int, struct rtc_time *); +extern unsigned int q40_get_ss(void); +extern int q40_set_clock_mmss(unsigned long); static int q40_get_rtc_pll(struct rtc_pll_info *pll); static int q40_set_rtc_pll(struct rtc_pll_info *pll); -extern void q40_reset (void); +extern void q40_reset(void); void q40_halt(void); extern void q40_waitbut(void); -void q40_set_vectors (void); +void q40_set_vectors(void); -extern void q40_mksound(unsigned int /*freq*/, unsigned int /*ticks*/ ); +extern void q40_mksound(unsigned int /*freq*/, unsigned int /*ticks*/); -extern char m68k_debug_device[]; static void q40_mem_console_write(struct console *co, const char *b, - unsigned int count); + unsigned int count); extern int ql_ticks; static struct console q40_console_driver = { - .name = "debug", - .flags = CON_PRINTBUFFER, - .index = -1, + .name = "debug", + .write = q40_mem_console_write, + .flags = CON_PRINTBUFFER, + .index = -1, }; @@ -74,150 +74,162 @@ static int _cpleft; static void q40_mem_console_write(struct console *co, const char *s, unsigned int count) { - char *p=(char *)s; - - if (count<_cpleft) - while (count-- >0){ - *q40_mem_cptr=*p++; - q40_mem_cptr+=4; - _cpleft--; - } + const char *p = s; + + if (count < _cpleft) { + while (count-- > 0) { + *q40_mem_cptr = *p++; + q40_mem_cptr += 4; + _cpleft--; + } + } +} + +static int __init q40_debug_setup(char *arg) +{ + /* useful for early debugging stages - writes kernel messages into SRAM */ + if (MACH_IS_Q40 && !strncmp(arg, "mem", 3)) { + /*printk("using NVRAM debug, q40_mem_cptr=%p\n",q40_mem_cptr);*/ + _cpleft = 2000 - ((long)q40_mem_cptr-0xff020000) / 4; + register_console(&q40_console_driver); + } + return 0; } + +early_param("debug", q40_debug_setup); + #if 0 void printq40(char *str) { - int l=strlen(str); - char *p=q40_mem_cptr; - - while (l-- >0 && _cpleft-- >0) - { - *p=*str++; - p+=4; - } - q40_mem_cptr=p; + int l = strlen(str); + char *p = q40_mem_cptr; + + while (l-- > 0 && _cpleft-- > 0) { + *p = *str++; + p += 4; + } + q40_mem_cptr = p; } #endif -static int halted=0; +static int halted; #ifdef CONFIG_HEARTBEAT static void q40_heartbeat(int on) { - if (halted) return; + if (halted) + return; - if (on) - Q40_LED_ON(); - else - Q40_LED_OFF(); + if (on) + Q40_LED_ON(); + else + Q40_LED_OFF(); } #endif void q40_reset(void) { - halted=1; - printk ("\n\n*******************************************\n" + halted = 1; + printk("\n\n*******************************************\n" "Called q40_reset : press the RESET button!! \n" "*******************************************\n"); Q40_LED_ON(); - while(1) ; + while (1) + ; } void q40_halt(void) { - halted=1; - printk ("\n\n*******************\n" - " Called q40_halt\n" - "*******************\n"); + halted = 1; + printk("\n\n*******************\n" + " Called q40_halt\n" + "*******************\n"); Q40_LED_ON(); - while(1) ; + while (1) + ; } static void q40_get_model(char *model) { - sprintf(model, "Q40"); + sprintf(model, "Q40"); } /* No hardware options on Q40? */ static int q40_get_hardware_list(char *buffer) { - *buffer = '\0'; - return 0; + *buffer = '\0'; + return 0; } -static unsigned int serports[]={0x3f8,0x2f8,0x3e8,0x2e8,0}; +static unsigned int serports[] = +{ + 0x3f8,0x2f8,0x3e8,0x2e8,0 +}; void q40_disable_irqs(void) { - unsigned i,j; + unsigned i, j; - j=0; - while((i=serports[j++])) outb(0,i+UART_IER); - master_outb(0,EXT_ENABLE_REG); - master_outb(0,KEY_IRQ_ENABLE_REG); + j = 0; + while ((i = serports[j++])) + outb(0, i + UART_IER); + master_outb(0, EXT_ENABLE_REG); + master_outb(0, KEY_IRQ_ENABLE_REG); } void __init config_q40(void) { - mach_sched_init = q40_sched_init; + mach_sched_init = q40_sched_init; - mach_init_IRQ = q40_init_IRQ; - mach_gettimeoffset = q40_gettimeoffset; - mach_hwclk = q40_hwclk; - mach_get_ss = q40_get_ss; - mach_get_rtc_pll = q40_get_rtc_pll; - mach_set_rtc_pll = q40_set_rtc_pll; - mach_set_clock_mmss = q40_set_clock_mmss; + mach_init_IRQ = q40_init_IRQ; + mach_gettimeoffset = q40_gettimeoffset; + mach_hwclk = q40_hwclk; + mach_get_ss = q40_get_ss; + mach_get_rtc_pll = q40_get_rtc_pll; + mach_set_rtc_pll = q40_set_rtc_pll; + mach_set_clock_mmss = q40_set_clock_mmss; - mach_reset = q40_reset; - mach_get_model = q40_get_model; - mach_get_hardware_list = q40_get_hardware_list; + mach_reset = q40_reset; + mach_get_model = q40_get_model; + mach_get_hardware_list = q40_get_hardware_list; #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) - mach_beep = q40_mksound; + mach_beep = q40_mksound; #endif #ifdef CONFIG_HEARTBEAT - mach_heartbeat = q40_heartbeat; + mach_heartbeat = q40_heartbeat; #endif - mach_halt = q40_halt; - - /* disable a few things that SMSQ might have left enabled */ - q40_disable_irqs(); - - /* no DMA at all, but ide-scsi requires it.. make sure - * all physical RAM fits into the boundary - otherwise - * allocator may play costly and useless tricks */ - mach_max_dma_address = 1024*1024*1024; - - /* useful for early debugging stages - writes kernel messages into SRAM */ - if (!strncmp( m68k_debug_device,"mem",3 )) - { - /*printk("using NVRAM debug, q40_mem_cptr=%p\n",q40_mem_cptr);*/ - _cpleft=2000-((long)q40_mem_cptr-0xff020000)/4; - q40_console_driver.write = q40_mem_console_write; - register_console(&q40_console_driver); - } + mach_halt = q40_halt; + + /* disable a few things that SMSQ might have left enabled */ + q40_disable_irqs(); + + /* no DMA at all, but ide-scsi requires it.. make sure + * all physical RAM fits into the boundary - otherwise + * allocator may play costly and useless tricks */ + mach_max_dma_address = 1024*1024*1024; } int q40_parse_bootinfo(const struct bi_record *rec) { - return 1; + return 1; } -static inline unsigned char bcd2bin (unsigned char b) +static inline unsigned char bcd2bin(unsigned char b) { - return ((b>>4)*10 + (b&15)); + return (b >> 4) * 10 + (b & 15); } -static inline unsigned char bin2bcd (unsigned char b) +static inline unsigned char bin2bcd(unsigned char b) { - return (((b/10)*16) + (b%10)); + return (b / 10) * 16 + (b % 10); } -unsigned long q40_gettimeoffset (void) +unsigned long q40_gettimeoffset(void) { - return 5000*(ql_ticks!=0); + return 5000 * (ql_ticks != 0); } @@ -238,9 +250,9 @@ unsigned long q40_gettimeoffset (void) int q40_hwclk(int op, struct rtc_time *t) { - if (op) - { /* Write.... */ - Q40_RTC_CTRL |= Q40_RTC_WRITE; + if (op) { + /* Write.... */ + Q40_RTC_CTRL |= Q40_RTC_WRITE; Q40_RTC_SECS = bin2bcd(t->tm_sec); Q40_RTC_MINS = bin2bcd(t->tm_min); @@ -251,25 +263,23 @@ int q40_hwclk(int op, struct rtc_time *t) if (t->tm_wday >= 0) Q40_RTC_DOW = bin2bcd(t->tm_wday+1); - Q40_RTC_CTRL &= ~(Q40_RTC_WRITE); - } - else - { /* Read.... */ - Q40_RTC_CTRL |= Q40_RTC_READ; - - t->tm_year = bcd2bin (Q40_RTC_YEAR); - t->tm_mon = bcd2bin (Q40_RTC_MNTH)-1; - t->tm_mday = bcd2bin (Q40_RTC_DATE); - t->tm_hour = bcd2bin (Q40_RTC_HOUR); - t->tm_min = bcd2bin (Q40_RTC_MINS); - t->tm_sec = bcd2bin (Q40_RTC_SECS); - - Q40_RTC_CTRL &= ~(Q40_RTC_READ); - - if (t->tm_year < 70) - t->tm_year += 100; - t->tm_wday = bcd2bin(Q40_RTC_DOW)-1; - + Q40_RTC_CTRL &= ~(Q40_RTC_WRITE); + } else { + /* Read.... */ + Q40_RTC_CTRL |= Q40_RTC_READ; + + t->tm_year = bcd2bin (Q40_RTC_YEAR); + t->tm_mon = bcd2bin (Q40_RTC_MNTH)-1; + t->tm_mday = bcd2bin (Q40_RTC_DATE); + t->tm_hour = bcd2bin (Q40_RTC_HOUR); + t->tm_min = bcd2bin (Q40_RTC_MINS); + t->tm_sec = bcd2bin (Q40_RTC_SECS); + + Q40_RTC_CTRL &= ~(Q40_RTC_READ); + + if (t->tm_year < 70) + t->tm_year += 100; + t->tm_wday = bcd2bin(Q40_RTC_DOW)-1; } return 0; @@ -285,29 +295,25 @@ unsigned int q40_get_ss(void) * clock is out by > 30 minutes. Logic lifted from atari code. */ -int q40_set_clock_mmss (unsigned long nowtime) +int q40_set_clock_mmss(unsigned long nowtime) { int retval = 0; short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60; int rtc_minutes; + rtc_minutes = bcd2bin(Q40_RTC_MINS); - rtc_minutes = bcd2bin (Q40_RTC_MINS); - - if ((rtc_minutes < real_minutes - ? real_minutes - rtc_minutes - : rtc_minutes - real_minutes) < 30) - { - Q40_RTC_CTRL |= Q40_RTC_WRITE; + if ((rtc_minutes < real_minutes ? + real_minutes - rtc_minutes : + rtc_minutes - real_minutes) < 30) { + Q40_RTC_CTRL |= Q40_RTC_WRITE; Q40_RTC_MINS = bin2bcd(real_minutes); Q40_RTC_SECS = bin2bcd(real_seconds); Q40_RTC_CTRL &= ~(Q40_RTC_WRITE); - } - else + } else retval = -1; - return retval; } @@ -318,21 +324,23 @@ int q40_set_clock_mmss (unsigned long nowtime) static int q40_get_rtc_pll(struct rtc_pll_info *pll) { - int tmp=Q40_RTC_CTRL; + int tmp = Q40_RTC_CTRL; + pll->pll_value = tmp & Q40_RTC_PLL_MASK; if (tmp & Q40_RTC_PLL_SIGN) pll->pll_value = -pll->pll_value; - pll->pll_max=31; - pll->pll_min=-31; - pll->pll_posmult=512; - pll->pll_negmult=256; - pll->pll_clock=125829120; + pll->pll_max = 31; + pll->pll_min = -31; + pll->pll_posmult = 512; + pll->pll_negmult = 256; + pll->pll_clock = 125829120; + return 0; } static int q40_set_rtc_pll(struct rtc_pll_info *pll) { - if (!pll->pll_ctrl){ + if (!pll->pll_ctrl) { /* the docs are a bit unclear so I am doublesetting */ /* RTC_WRITE here ... */ int tmp = (pll->pll_value & 31) | (pll->pll_value<0 ? 32 : 0) | diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c index 31cc07d..2fb25ae 100644 --- a/arch/m68k/q40/q40ints.c +++ b/arch/m68k/q40/q40ints.c @@ -59,7 +59,7 @@ static void q40_irq_shutdown(unsigned int irq) static struct irq_controller q40_irq_controller = { .name = "q40", - .lock = SPIN_LOCK_UNLOCKED, + .lock = __SPIN_LOCK_UNLOCKED(q40_irq_controller.lock), .startup = q40_irq_startup, .shutdown = q40_irq_shutdown, .enable = q40_enable_irq, diff --git a/arch/m68k/sun3/sun3ints.c b/arch/m68k/sun3/sun3ints.c index baf74e8..50df34b 100644 --- a/arch/m68k/sun3/sun3ints.c +++ b/arch/m68k/sun3/sun3ints.c @@ -90,7 +90,7 @@ static void sun3_inthandle(unsigned int irq, struct pt_regs *fp) static struct irq_controller sun3_irq_controller = { .name = "sun3", - .lock = SPIN_LOCK_UNLOCKED, + .lock = __SPIN_LOCK_UNLOCKED(sun3_irq_controller.lock), .startup = m68k_irq_startup, .shutdown = m68k_irq_shutdown, .enable = sun3_enable_irq, @@ -103,7 +103,7 @@ void sun3_init_IRQ(void) m68k_setup_auto_interrupt(sun3_inthandle); m68k_setup_irq_controller(&sun3_irq_controller, IRQ_AUTO_1, 7); - m68k_setup_user_interrupt(VEC_USER, 192, NULL); + m68k_setup_user_interrupt(VEC_USER, 128, NULL); request_irq(IRQ_AUTO_5, sun3_int5, 0, "int5", NULL); request_irq(IRQ_AUTO_7, sun3_int7, 0, "int7", NULL); diff --git a/arch/m68k/sun3x/prom.c b/arch/m68k/sun3x/prom.c index 574cf06..48f8eb7 100644 --- a/arch/m68k/sun3x/prom.c +++ b/arch/m68k/sun3x/prom.c @@ -34,100 +34,101 @@ e_vector *sun3x_prom_vbr; /* Handle returning to the prom */ void sun3x_halt(void) { - unsigned long flags; + unsigned long flags; - /* Disable interrupts while we mess with things */ - local_irq_save(flags); + /* Disable interrupts while we mess with things */ + local_irq_save(flags); - /* Restore prom vbr */ - __asm__ volatile ("movec %0,%%vbr" : : "r" ((void*)sun3x_prom_vbr)); + /* Restore prom vbr */ + asm volatile ("movec %0,%%vbr" : : "r" ((void*)sun3x_prom_vbr)); - /* Restore prom NMI clock */ -// sun3x_disable_intreg(5); - sun3_enable_irq(7); + /* Restore prom NMI clock */ +// sun3x_disable_intreg(5); + sun3_enable_irq(7); - /* Let 'er rip */ - __asm__ volatile ("trap #14" : : ); + /* Let 'er rip */ + asm volatile ("trap #14"); - /* Restore everything */ - sun3_disable_irq(7); - sun3_enable_irq(5); + /* Restore everything */ + sun3_disable_irq(7); + sun3_enable_irq(5); - __asm__ volatile ("movec %0,%%vbr" : : "r" ((void*)vectors)); - local_irq_restore(flags); + asm volatile ("movec %0,%%vbr" : : "r" ((void*)vectors)); + local_irq_restore(flags); } void sun3x_reboot(void) { - /* This never returns, don't bother saving things */ - local_irq_disable(); + /* This never returns, don't bother saving things */ + local_irq_disable(); - /* Restore prom vbr */ - __asm__ volatile ("movec %0,%%vbr" : : "r" ((void*)sun3x_prom_vbr)); + /* Restore prom vbr */ + asm volatile ("movec %0,%%vbr" : : "r" ((void*)sun3x_prom_vbr)); - /* Restore prom NMI clock */ - sun3_disable_irq(5); - sun3_enable_irq(7); + /* Restore prom NMI clock */ + sun3_disable_irq(5); + sun3_enable_irq(7); - /* Let 'er rip */ - (*romvec->pv_reboot)("vmlinux"); + /* Let 'er rip */ + (*romvec->pv_reboot)("vmlinux"); } -extern char m68k_debug_device[]; - static void sun3x_prom_write(struct console *co, const char *s, unsigned int count) { - while (count--) { - if (*s == '\n') - sun3x_putchar('\r'); - sun3x_putchar(*s++); - } + while (count--) { + if (*s == '\n') + sun3x_putchar('\r'); + sun3x_putchar(*s++); + } } /* debug console - write-only */ static struct console sun3x_debug = { - .name = "debug", - .write = sun3x_prom_write, - .flags = CON_PRINTBUFFER, - .index = -1, + .name = "debug", + .write = sun3x_prom_write, + .flags = CON_PRINTBUFFER, + .index = -1, }; void sun3x_prom_init(void) { - /* Read the vector table */ - - sun3x_putchar = *(void (**)(int)) (SUN3X_P_PUTCHAR); - sun3x_getchar = *(int (**)(void)) (SUN3X_P_GETCHAR); - sun3x_mayget = *(int (**)(void)) (SUN3X_P_MAYGET); - sun3x_mayput = *(int (**)(int)) (SUN3X_P_MAYPUT); - sun3x_prom_reboot = *(void (**)(void)) (SUN3X_P_REBOOT); - sun3x_prom_abort = *(e_vector *) (SUN3X_P_ABORT); - romvec = (struct linux_romvec *)SUN3X_PROM_BASE; - - idprom_init(); - - if(!((idprom->id_machtype & SM_ARCH_MASK) == SM_SUN3X)) { - printk("Warning: machine reports strange type %02x\n", - idprom->id_machtype); - printk("Pretending it's a 3/80, but very afraid...\n"); - idprom->id_machtype = SM_SUN3X | SM_3_80; - } - - /* point trap #14 at abort. - * XXX this is futile since we restore the vbr first - oops - */ - vectors[VEC_TRAP14] = sun3x_prom_abort; - - /* If debug=prom was specified, start the debug console */ - - if (!strcmp(m68k_debug_device, "prom")) - register_console(&sun3x_debug); - + /* Read the vector table */ + + sun3x_putchar = *(void (**)(int)) (SUN3X_P_PUTCHAR); + sun3x_getchar = *(int (**)(void)) (SUN3X_P_GETCHAR); + sun3x_mayget = *(int (**)(void)) (SUN3X_P_MAYGET); + sun3x_mayput = *(int (**)(int)) (SUN3X_P_MAYPUT); + sun3x_prom_reboot = *(void (**)(void)) (SUN3X_P_REBOOT); + sun3x_prom_abort = *(e_vector *) (SUN3X_P_ABORT); + romvec = (struct linux_romvec *)SUN3X_PROM_BASE; + + idprom_init(); + + if (!((idprom->id_machtype & SM_ARCH_MASK) == SM_SUN3X)) { + printk("Warning: machine reports strange type %02x\n", + idprom->id_machtype); + printk("Pretending it's a 3/80, but very afraid...\n"); + idprom->id_machtype = SM_SUN3X | SM_3_80; + } + + /* point trap #14 at abort. + * XXX this is futile since we restore the vbr first - oops + */ + vectors[VEC_TRAP14] = sun3x_prom_abort; +} +static int __init sun3x_debug_setup(char *arg) +{ + /* If debug=prom was specified, start the debug console */ + if (MACH_IS_SUN3X && !strcmp(arg, "prom")) + register_console(&sun3x_debug); + return 0; } +early_param("debug", sun3x_debug_setup); + /* some prom functions to export */ int prom_getintdefault(int node, char *property, int deflt) { @@ -141,7 +142,6 @@ int prom_getbool (int node, char *prop) void prom_printf(char *fmt, ...) { - } void prom_halt (void) @@ -159,7 +159,7 @@ prom_get_idprom(char *idbuf, int num_bytes) int i; /* make a copy of the idprom structure */ - for(i = 0; i < num_bytes; i++) + for (i = 0; i < num_bytes; i++) idbuf[i] = ((char *)SUN3X_IDPROM)[i]; return idbuf[0]; diff --git a/arch/m68knommu/kernel/dma.c b/arch/m68knommu/kernel/dma.c index 14b19c4..0a25874a 100644 --- a/arch/m68knommu/kernel/dma.c +++ b/arch/m68knommu/kernel/dma.c @@ -8,7 +8,6 @@ #include <linux/types.h> #include <linux/mm.h> #include <linux/string.h> -#include <linux/pci.h> #include <asm/io.h> void *dma_alloc_coherent(struct device *dev, size_t size, diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 130d825..7441a2c 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1042,6 +1042,9 @@ config SOC_AU1X00 select SYS_SUPPORTS_APM_EMULATION select SYS_SUPPORTS_KGDB +config SERIAL_RM9000 + bool + config PNX8550 bool select SOC_PNX8550 diff --git a/arch/mips/cobalt/Makefile b/arch/mips/cobalt/Makefile index de017c1..9565b21 100644 --- a/arch/mips/cobalt/Makefile +++ b/arch/mips/cobalt/Makefile @@ -2,7 +2,7 @@ # Makefile for the Cobalt micro systems family specific parts of the kernel # -obj-y := irq.o reset.o setup.o +obj-y := irq.o reset.o setup.o buttons.o obj-$(CONFIG_PCI) += pci.o obj-$(CONFIG_EARLY_PRINTK) += console.o diff --git a/arch/mips/cobalt/buttons.c b/arch/mips/cobalt/buttons.c new file mode 100644 index 0000000..9e14398 --- /dev/null +++ b/arch/mips/cobalt/buttons.c @@ -0,0 +1,54 @@ +/* + * Cobalt buttons platform device. + * + * Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/platform_device.h> +#include <linux/errno.h> +#include <linux/init.h> + +static struct resource cobalt_buttons_resource __initdata = { + .start = 0x1d000000, + .end = 0x1d000003, + .flags = IORESOURCE_MEM, +}; + +static __init int cobalt_add_buttons(void) +{ + struct platform_device *pd; + int error; + + pd = platform_device_alloc("Cobalt buttons", -1); + if (!pd) + return -ENOMEM; + + error = platform_device_add_resources(pd, &cobalt_buttons_resource, 1); + if (error) + goto err_free_device; + + error = platform_device_add(pd); + if (error) + goto err_free_device; + + return 0; + + err_free_device: + platform_device_put(pd); + return error; +} +device_initcall(cobalt_add_buttons); diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S index c76b793..043f637 100644 --- a/arch/mips/kernel/vmlinux.lds.S +++ b/arch/mips/kernel/vmlinux.lds.S @@ -119,7 +119,7 @@ SECTIONS .init.ramfs : { *(.init.ramfs) } __initramfs_end = .; #endif - . = ALIGN(32); + . = ALIGN(_PAGE_SIZE); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; diff --git a/arch/mips/lib/iomap.c b/arch/mips/lib/iomap.c index d51d5cb..e3acb2d 100644 --- a/arch/mips/lib/iomap.c +++ b/arch/mips/lib/iomap.c @@ -6,7 +6,6 @@ * (C) Copyright 2007 MIPS Technologies, Inc. * written by Ralf Baechle <ralf@linux-mips.org> */ -#include <linux/pci.h> #include <linux/module.h> #include <asm/io.h> diff --git a/arch/mips/pmc-sierra/msp71xx/msp_serial.c b/arch/mips/pmc-sierra/msp71xx/msp_serial.c new file mode 100644 index 0000000..c41b53f --- /dev/null +++ b/arch/mips/pmc-sierra/msp71xx/msp_serial.c @@ -0,0 +1,165 @@ +/* + * The setup file for serial related hardware on PMC-Sierra MSP processors. + * + * Copyright 2005 PMC-Sierra, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/serial.h> +#include <linux/serial_core.h> +#include <linux/serial_reg.h> + +#include <asm/bootinfo.h> +#include <asm/io.h> +#include <asm/processor.h> +#include <asm/serial.h> + +#include <msp_prom.h> +#include <msp_int.h> +#include <msp_regs.h> + +#ifdef CONFIG_KGDB +/* + * kgdb uses serial port 1 so the console can remain on port 0. + * To use port 0 change the definition to read as follows: + * #define DEBUG_PORT_BASE KSEG1ADDR(MSP_UART0_BASE) + */ +#define DEBUG_PORT_BASE KSEG1ADDR(MSP_UART1_BASE) + +int putDebugChar(char c) +{ + volatile uint32_t *uart = (volatile uint32_t *)DEBUG_PORT_BASE; + uint32_t val = (uint32_t)c; + + local_irq_disable(); + while( !(uart[5] & 0x20) ); /* Wait for TXRDY */ + uart[0] = val; + while( !(uart[5] & 0x20) ); /* Wait for TXRDY */ + local_irq_enable(); + + return 1; +} + +char getDebugChar(void) +{ + volatile uint32_t *uart = (volatile uint32_t *)DEBUG_PORT_BASE; + uint32_t val; + + while( !(uart[5] & 0x01) ); /* Wait for RXRDY */ + val = uart[0]; + + return (char)val; +} + +void initDebugPort(unsigned int uartclk, unsigned int baudrate) +{ + unsigned int baud_divisor = (uartclk + 8 * baudrate)/(16 * baudrate); + + /* Enable FIFOs */ + writeb(UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | + UART_FCR_CLEAR_XMIT | UART_FCR_TRIGGER_4, + (char *)DEBUG_PORT_BASE + (UART_FCR * 4)); + + /* Select brtc divisor */ + writeb(UART_LCR_DLAB, (char *)DEBUG_PORT_BASE + (UART_LCR * 4)); + + /* Store divisor lsb */ + writeb(baud_divisor, (char *)DEBUG_PORT_BASE + (UART_TX * 4)); + + /* Store divisor msb */ + writeb(baud_divisor >> 8, (char *)DEBUG_PORT_BASE + (UART_IER * 4)); + + /* Set 8N1 mode */ + writeb(UART_LCR_WLEN8, (char *)DEBUG_PORT_BASE + (UART_LCR * 4)); + + /* Disable flow control */ + writeb(0, (char *)DEBUG_PORT_BASE + (UART_MCR * 4)); + + /* Disable receive interrupt(!) */ + writeb(0, (char *)DEBUG_PORT_BASE + (UART_IER * 4)); +} +#endif + +void __init msp_serial_setup(void) +{ + char *s; + char *endp; + struct uart_port up; + unsigned int uartclk; + + memset(&up, 0, sizeof(up)); + + /* Check if clock was specified in environment */ + s = prom_getenv("uartfreqhz"); + if(!(s && *s && (uartclk = simple_strtoul(s, &endp, 10)) && *endp == 0)) + uartclk = MSP_BASE_BAUD; + ppfinit("UART clock set to %d\n", uartclk); + + /* Initialize first serial port */ + up.mapbase = MSP_UART0_BASE; + up.membase = ioremap_nocache(up.mapbase,MSP_UART_REG_LEN); + up.irq = MSP_INT_UART0; + up.uartclk = uartclk; + up.regshift = 2; + up.iotype = UPIO_DWAPB; /* UPIO_MEM like */ + up.flags = STD_COM_FLAGS; + up.type = PORT_16550A; + up.line = 0; + up.private_data = (void*)UART0_STATUS_REG; + if (early_serial_setup(&up)) + printk(KERN_ERR "Early serial init of port 0 failed\n"); + + /* Initialize the second serial port, if one exists */ + switch (mips_machtype) { + case MACH_MSP4200_EVAL: + case MACH_MSP4200_GW: + case MACH_MSP4200_FPGA: + case MACH_MSP7120_EVAL: + case MACH_MSP7120_GW: + case MACH_MSP7120_FPGA: + /* Enable UART1 on MSP4200 and MSP7120 */ + *GPIO_CFG2_REG = 0x00002299; + +#ifdef CONFIG_KGDB + /* Initialize UART1 for kgdb since PMON doesn't */ + if( DEBUG_PORT_BASE == KSEG1ADDR(MSP_UART1_BASE) ) { + if( mips_machtype == MACH_MSP4200_FPGA + || mips_machtype == MACH_MSP7120_FPGA ) + initDebugPort(uartclk,19200); + else + initDebugPort(uartclk,57600); + } +#endif + break; + + default: + return; /* No second serial port, good-bye. */ + } + + up.mapbase = MSP_UART1_BASE; + up.membase = ioremap_nocache(up.mapbase,MSP_UART_REG_LEN); + up.irq = MSP_INT_UART1; + up.line = 1; + up.private_data = (void*)UART1_STATUS_REG; + if (early_serial_setup(&up)) + printk(KERN_ERR "Early serial init of port 1 failed\n"); +} diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index 512642d..6fed080 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -106,6 +106,11 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, { if (len > TASK_SIZE) return -ENOMEM; + /* Might want to check for cache aliasing issues for MAP_FIXED case + * like ARM or MIPS ??? --BenH. + */ + if (flags & MAP_FIXED) + return addr; if (!addr) addr = TASK_UNMAPPED_BASE; diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S index 2a82533..c745859 100644 --- a/arch/parisc/kernel/vmlinux.lds.S +++ b/arch/parisc/kernel/vmlinux.lds.S @@ -181,7 +181,7 @@ SECTIONS .init.ramfs : { *(.init.ramfs) } __initramfs_end = .; #endif - . = ALIGN(32); + . = ALIGN(ASM_PAGE_SIZE); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 5ada5b45..67668fd 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -120,6 +120,19 @@ config GENERIC_BUG config SYS_SUPPORTS_APM_EMULATION bool +# +# Powerpc uses the slab allocator to manage its ptes and the +# page structs of ptes are used for splitting the page table +# lock for configurations supporting more than SPLIT_PTLOCK_CPUS. +# +# In that special configuration the page structs of slabs are modified. +# This setting disables the selection of SLUB as a slab allocator. +# +config ARCH_USES_SLAB_PAGE_STRUCT + bool + default y + depends on SPLIT_PTLOCK_CPUS <= NR_CPUS + config DEFAULT_UIMAGE bool help diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 4dc73b8c..94c703a 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -36,7 +36,7 @@ obj-$(CONFIG_GENERIC_TBSYNC) += smp-tbsync.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o obj-$(CONFIG_6xx) += idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o obj-$(CONFIG_TAU) += tau_6xx.o -obj-$(CONFIG_SOFTWARE_SUSPEND) += swsusp.o +obj-$(CONFIG_SOFTWARE_SUSPEND) += swsusp.o suspend.o obj32-$(CONFIG_SOFTWARE_SUSPEND) += swsusp_32.o obj64-$(CONFIG_SOFTWARE_SUSPEND) += swsusp_64.o swsusp_asm64.o obj32-$(CONFIG_MODULES) += module_32.o diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c index 662cd67..cea8045 100644 --- a/arch/powerpc/kernel/legacy_serial.c +++ b/arch/powerpc/kernel/legacy_serial.c @@ -115,7 +115,8 @@ static int __init add_legacy_soc_port(struct device_node *np, { u64 addr; const u32 *addrp; - upf_t flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ; + upf_t flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ + | UPF_FIXED_PORT; struct device_node *tsi = of_get_parent(np); /* We only support ports that have a clock frequency properly diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 706b7f3..6d05a1f 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -340,7 +340,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, struct pci_dev *dev; const char *type; - dev = kzalloc(sizeof(struct pci_dev), GFP_KERNEL); + dev = alloc_pci_dev(); if (!dev) return NULL; type = of_get_property(node, "device_type", NULL); diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 22083ce..6018178 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -582,14 +582,14 @@ void __init setup_per_cpu_areas(void) char *ptr; /* Copy section for each CPU (we discard the original) */ - size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES); + size = ALIGN(__per_cpu_end - __per_cpu_start, PAGE_SIZE); #ifdef CONFIG_MODULES if (size < PERCPU_ENOUGH_ROOM) size = PERCPU_ENOUGH_ROOM; #endif for_each_possible_cpu(i) { - ptr = alloc_bootmem_node(NODE_DATA(cpu_to_node(i)), size); + ptr = alloc_bootmem_pages_node(NODE_DATA(cpu_to_node(i)), size); if (!ptr) panic("Cannot allocate cpu data for CPU %d\n", i); diff --git a/arch/powerpc/kernel/suspend.c b/arch/powerpc/kernel/suspend.c new file mode 100644 index 0000000..8cee571 --- /dev/null +++ b/arch/powerpc/kernel/suspend.c @@ -0,0 +1,24 @@ +/* + * Suspend support specific for power. + * + * Distribute under GPLv2 + * + * Copyright (c) 2002 Pavel Machek <pavel@suse.cz> + * Copyright (c) 2001 Patrick Mochel <mochel@osdl.org> + */ + +#include <asm/page.h> + +/* References to section boundaries */ +extern const void __nosave_begin, __nosave_end; + +/* + * pfn_is_nosave - check if given pfn is in the 'nosave' section + */ + +int pfn_is_nosave(unsigned long pfn) +{ + unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT; + unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT; + return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn); +} diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index ec87106..62c1bc1 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -37,7 +37,7 @@ #include <asm/iseries/hv_call_xm.h> #include <asm/iseries/iommu.h> -extern struct subsystem devices_subsys; /* needed for vio_find_name() */ +extern struct kset devices_subsys; /* needed for vio_find_name() */ static struct vio_dev vio_bus_device = { /* fake "parent" device */ .name = vio_bus_device.dev.bus_id, @@ -427,7 +427,7 @@ static struct vio_dev *vio_find_name(const char *kobj_name) { struct kobject *found; - found = kset_find_obj(&devices_subsys.kset, kobj_name); + found = kset_find_obj(&devices_subsys, kobj_name); if (!found) return NULL; diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 7eefeb4..1320673 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -139,11 +139,7 @@ SECTIONS __initramfs_end = .; } #endif -#ifdef CONFIG_PPC32 - . = ALIGN(32); -#else - . = ALIGN(128); -#endif + . = ALIGN(PAGE_SIZE); .data.percpu : { __per_cpu_start = .; *(.data.percpu) diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 8508f97..1f07f70 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -566,6 +566,13 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, if (len > TASK_SIZE) return -ENOMEM; + /* handle fixed mapping: prevent overlap with huge pages */ + if (flags & MAP_FIXED) { + if (is_hugepage_only_range(mm, addr, len)) + return -EINVAL; + return addr; + } + if (addr) { addr = PAGE_ALIGN(addr); vma = find_vma(mm, addr); @@ -641,6 +648,13 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, if (len > TASK_SIZE) return -ENOMEM; + /* handle fixed mapping: prevent overlap with huge pages */ + if (flags & MAP_FIXED) { + if (is_hugepage_only_range(mm, addr, len)) + return -EINVAL; + return addr; + } + /* dont allow allocations above current base */ if (mm->free_area_cache > base) mm->free_area_cache = base; @@ -823,6 +837,13 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, /* Paranoia, caller should have dealt with this */ BUG_ON((addr + len) < addr); + /* Handle MAP_FIXED */ + if (flags & MAP_FIXED) { + if (prepare_hugepage_range(addr, len, pgoff)) + return -EINVAL; + return addr; + } + if (test_thread_flag(TIF_32BIT)) { curareas = current->mm->context.low_htlb_areas; @@ -1057,8 +1078,7 @@ static int __init hugetlbpage_init(void) huge_pgtable_cache = kmem_cache_create("hugepte_cache", HUGEPTE_TABLE_SIZE, HUGEPTE_TABLE_SIZE, - SLAB_HWCACHE_ALIGN | - SLAB_MUST_HWCACHE_ALIGN, + 0, zero_ctor, NULL); if (! huge_pgtable_cache) panic("hugetlbpage_init(): could not create hugepte cache\n"); diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c index d12a87e..4416d51 100644 --- a/arch/powerpc/mm/init_64.c +++ b/arch/powerpc/mm/init_64.c @@ -183,8 +183,7 @@ void pgtable_cache_init(void) "for size: %08x...\n", name, i, size); pgtable_cache[i] = kmem_cache_create(name, size, size, - SLAB_HWCACHE_ALIGN | - SLAB_MUST_HWCACHE_ALIGN, + 0, zero_ctor, NULL); if (! pgtable_cache[i]) diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index 13e4f70..a93f328 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -71,8 +71,7 @@ spufs_init_once(void *p, struct kmem_cache * cachep, unsigned long flags) { struct spufs_inode_info *ei = p; - if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) == - SLAB_CTOR_CONSTRUCTOR) { + if (flags & SLAB_CTOR_CONSTRUCTOR) { inode_init_once(&ei->vfs_inode); } } diff --git a/arch/powerpc/platforms/powermac/cpufreq_32.c b/arch/powerpc/platforms/powermac/cpufreq_32.c index 8943a94..1fe35da 100644 --- a/arch/powerpc/platforms/powermac/cpufreq_32.c +++ b/arch/powerpc/platforms/powermac/cpufreq_32.c @@ -25,7 +25,6 @@ #include <linux/cpufreq.h> #include <linux/init.h> #include <linux/sysdev.h> -#include <linux/i2c.h> #include <linux/hardirq.h> #include <asm/prom.h> #include <asm/machdep.h> diff --git a/arch/powerpc/platforms/pseries/power.c b/arch/powerpc/platforms/pseries/power.c index 2624b71..73e6902 100644 --- a/arch/powerpc/platforms/pseries/power.c +++ b/arch/powerpc/platforms/pseries/power.c @@ -28,13 +28,13 @@ unsigned long rtas_poweron_auto; /* default and normal state is 0 */ -static ssize_t auto_poweron_show(struct subsystem *subsys, char *buf) +static ssize_t auto_poweron_show(struct kset *kset, char *buf) { return sprintf(buf, "%lu\n", rtas_poweron_auto); } static ssize_t -auto_poweron_store(struct subsystem *subsys, const char *buf, size_t n) +auto_poweron_store(struct kset *kset, const char *buf, size_t n) { int ret; unsigned long ups_restart; @@ -72,12 +72,12 @@ static int __init pm_init(void) { int error = subsystem_register(&power_subsys); if (!error) - error = sysfs_create_group(&power_subsys.kset.kobj,&attr_group); + error = sysfs_create_group(&power_subsys.kobj, &attr_group); return error; } core_initcall(pm_init); #else -extern struct subsystem power_subsys; +extern struct kset power_subsys; static int __init apo_pm_init(void) { diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c index 53aa041..3a393c7 100644 --- a/arch/powerpc/platforms/pseries/ras.c +++ b/arch/powerpc/platforms/pseries/ras.c @@ -31,7 +31,6 @@ #include <linux/timex.h> #include <linux/init.h> #include <linux/slab.h> -#include <linux/pci.h> #include <linux/delay.h> #include <linux/irq.h> #include <linux/random.h> diff --git a/arch/ppc/8260_io/enet.c b/arch/ppc/8260_io/enet.c index 48ce84f..4c0a7d7 100644 --- a/arch/ppc/8260_io/enet.c +++ b/arch/ppc/8260_io/enet.c @@ -32,7 +32,6 @@ #include <linux/ioport.h> #include <linux/slab.h> #include <linux/interrupt.h> -#include <linux/pci.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/netdevice.h> diff --git a/arch/ppc/8260_io/fcc_enet.c b/arch/ppc/8260_io/fcc_enet.c index 9db825f..cab395d 100644 --- a/arch/ppc/8260_io/fcc_enet.c +++ b/arch/ppc/8260_io/fcc_enet.c @@ -29,7 +29,6 @@ #include <linux/ioport.h> #include <linux/slab.h> #include <linux/interrupt.h> -#include <linux/pci.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/netdevice.h> diff --git a/arch/ppc/8xx_io/enet.c b/arch/ppc/8xx_io/enet.c index bfa3f52..e58288e 100644 --- a/arch/ppc/8xx_io/enet.c +++ b/arch/ppc/8xx_io/enet.c @@ -30,7 +30,6 @@ #include <linux/ioport.h> #include <linux/slab.h> #include <linux/interrupt.h> -#include <linux/pci.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/netdevice.h> diff --git a/arch/ppc/kernel/vmlinux.lds.S b/arch/ppc/kernel/vmlinux.lds.S index a062556..44cd128 100644 --- a/arch/ppc/kernel/vmlinux.lds.S +++ b/arch/ppc/kernel/vmlinux.lds.S @@ -130,7 +130,7 @@ SECTIONS __ftr_fixup : { *(__ftr_fixup) } __stop___ftr_fixup = .; - . = ALIGN(32); + . = ALIGN(4096); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; diff --git a/arch/ppc/syslib/ppc4xx_sgdma.c b/arch/ppc/syslib/ppc4xx_sgdma.c index 93349e4..c4b369b 100644 --- a/arch/ppc/syslib/ppc4xx_sgdma.c +++ b/arch/ppc/syslib/ppc4xx_sgdma.c @@ -24,7 +24,6 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/dma-mapping.h> -#include <linux/pci.h> #include <asm/system.h> #include <asm/io.h> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index e6ec418..1a84719 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -49,6 +49,9 @@ config GENERIC_BUG config NO_IOMEM def_bool y +config NO_DMA + def_bool y + mainmenu "Linux Kernel Configuration" config S390 diff --git a/arch/s390/appldata/appldata_net_sum.c b/arch/s390/appldata/appldata_net_sum.c index a43f348..2180ac1 100644 --- a/arch/s390/appldata/appldata_net_sum.c +++ b/arch/s390/appldata/appldata_net_sum.c @@ -107,7 +107,7 @@ static void appldata_get_net_sum_data(void *data) tx_dropped = 0; collisions = 0; read_lock(&dev_base_lock); - for (dev = dev_base; dev != NULL; dev = dev->next) { + for_each_netdev(dev) { stats = dev->get_stats(dev); rx_packets += stats->rx_packets; tx_packets += stats->tx_packets; diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index 9163635..3660ca6 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -119,7 +119,8 @@ static struct crypto_alg aes_alg = { .cra_name = "aes", .cra_driver_name = "aes-s390", .cra_priority = CRYPT_S390_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_CIPHER, + .cra_flags = CRYPTO_ALG_TYPE_CIPHER | + CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = AES_BLOCK_SIZE, .cra_ctxsize = sizeof(struct s390_aes_ctx), .cra_module = THIS_MODULE, @@ -206,7 +207,8 @@ static struct crypto_alg ecb_aes_alg = { .cra_name = "ecb(aes)", .cra_driver_name = "ecb-aes-s390", .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | + CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = AES_BLOCK_SIZE, .cra_ctxsize = sizeof(struct s390_aes_ctx), .cra_type = &crypto_blkcipher_type, @@ -300,7 +302,8 @@ static struct crypto_alg cbc_aes_alg = { .cra_name = "cbc(aes)", .cra_driver_name = "cbc-aes-s390", .cra_priority = CRYPT_S390_COMPOSITE_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | + CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = AES_BLOCK_SIZE, .cra_ctxsize = sizeof(struct s390_aes_ctx), .cra_type = &crypto_blkcipher_type, @@ -333,10 +336,14 @@ static int __init aes_init(void) return -EOPNOTSUPP; /* z9 109 and z9 BC/EC only support 128 bit key length */ - if (keylen_flag == AES_KEYLEN_128) + if (keylen_flag == AES_KEYLEN_128) { + aes_alg.cra_u.cipher.cia_max_keysize = AES_MIN_KEY_SIZE; + ecb_aes_alg.cra_u.blkcipher.max_keysize = AES_MIN_KEY_SIZE; + cbc_aes_alg.cra_u.blkcipher.max_keysize = AES_MIN_KEY_SIZE; printk(KERN_INFO "aes_s390: hardware acceleration only available for" "128 bit keys\n"); + } ret = crypto_register_alg(&aes_alg); if (ret) diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index 06833ac..0ea048d 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -164,7 +164,7 @@ EXPORT_SYMBOL_GPL(diag308); /* SYSFS */ #define DEFINE_IPL_ATTR_RO(_prefix, _name, _format, _value) \ -static ssize_t sys_##_prefix##_##_name##_show(struct subsystem *subsys, \ +static ssize_t sys_##_prefix##_##_name##_show(struct kset *kset, \ char *page) \ { \ return sprintf(page, _format, _value); \ @@ -173,13 +173,13 @@ static struct subsys_attribute sys_##_prefix##_##_name##_attr = \ __ATTR(_name, S_IRUGO, sys_##_prefix##_##_name##_show, NULL); #define DEFINE_IPL_ATTR_RW(_prefix, _name, _fmt_out, _fmt_in, _value) \ -static ssize_t sys_##_prefix##_##_name##_show(struct subsystem *subsys, \ +static ssize_t sys_##_prefix##_##_name##_show(struct kset *kset, \ char *page) \ { \ return sprintf(page, _fmt_out, \ (unsigned long long) _value); \ } \ -static ssize_t sys_##_prefix##_##_name##_store(struct subsystem *subsys,\ +static ssize_t sys_##_prefix##_##_name##_store(struct kset *kset, \ const char *buf, size_t len) \ { \ unsigned long long value; \ @@ -194,12 +194,12 @@ static struct subsys_attribute sys_##_prefix##_##_name##_attr = \ sys_##_prefix##_##_name##_store); #define DEFINE_IPL_ATTR_STR_RW(_prefix, _name, _fmt_out, _fmt_in, _value)\ -static ssize_t sys_##_prefix##_##_name##_show(struct subsystem *subsys, \ +static ssize_t sys_##_prefix##_##_name##_show(struct kset *kset, \ char *page) \ { \ return sprintf(page, _fmt_out, _value); \ } \ -static ssize_t sys_##_prefix##_##_name##_store(struct subsystem *subsys,\ +static ssize_t sys_##_prefix##_##_name##_store(struct kset *kset, \ const char *buf, size_t len) \ { \ if (sscanf(buf, _fmt_in, _value) != 1) \ @@ -272,14 +272,14 @@ void __init setup_ipl_info(void) struct ipl_info ipl_info; EXPORT_SYMBOL_GPL(ipl_info); -static ssize_t ipl_type_show(struct subsystem *subsys, char *page) +static ssize_t ipl_type_show(struct kset *kset, char *page) { return sprintf(page, "%s\n", ipl_type_str(ipl_info.type)); } static struct subsys_attribute sys_ipl_type_attr = __ATTR_RO(ipl_type); -static ssize_t sys_ipl_device_show(struct subsystem *subsys, char *page) +static ssize_t sys_ipl_device_show(struct kset *kset, char *page) { struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START; @@ -371,7 +371,7 @@ static struct attribute_group ipl_fcp_attr_group = { /* CCW ipl device attributes */ -static ssize_t ipl_ccw_loadparm_show(struct subsystem *subsys, char *page) +static ssize_t ipl_ccw_loadparm_show(struct kset *kset, char *page) { char loadparm[LOADPARM_LEN + 1] = {}; @@ -469,7 +469,7 @@ static void reipl_get_ascii_loadparm(char *loadparm) strstrip(loadparm); } -static ssize_t reipl_ccw_loadparm_show(struct subsystem *subsys, char *page) +static ssize_t reipl_ccw_loadparm_show(struct kset *kset, char *page) { char buf[LOADPARM_LEN + 1]; @@ -477,7 +477,7 @@ static ssize_t reipl_ccw_loadparm_show(struct subsystem *subsys, char *page) return sprintf(page, "%s\n", buf); } -static ssize_t reipl_ccw_loadparm_store(struct subsystem *subsys, +static ssize_t reipl_ccw_loadparm_store(struct kset *kset, const char *buf, size_t len) { int i, lp_len; @@ -572,12 +572,12 @@ static int reipl_set_type(enum ipl_type type) return 0; } -static ssize_t reipl_type_show(struct subsystem *subsys, char *page) +static ssize_t reipl_type_show(struct kset *kset, char *page) { return sprintf(page, "%s\n", ipl_type_str(reipl_type)); } -static ssize_t reipl_type_store(struct subsystem *subsys, const char *buf, +static ssize_t reipl_type_store(struct kset *kset, const char *buf, size_t len) { int rc = -EINVAL; @@ -665,12 +665,12 @@ static int dump_set_type(enum dump_type type) return 0; } -static ssize_t dump_type_show(struct subsystem *subsys, char *page) +static ssize_t dump_type_show(struct kset *kset, char *page) { return sprintf(page, "%s\n", dump_type_str(dump_type)); } -static ssize_t dump_type_store(struct subsystem *subsys, const char *buf, +static ssize_t dump_type_store(struct kset *kset, const char *buf, size_t len) { int rc = -EINVAL; @@ -697,12 +697,12 @@ static decl_subsys(shutdown_actions, NULL, NULL); /* on panic */ -static ssize_t on_panic_show(struct subsystem *subsys, char *page) +static ssize_t on_panic_show(struct kset *kset, char *page) { return sprintf(page, "%s\n", shutdown_action_str(on_panic_action)); } -static ssize_t on_panic_store(struct subsystem *subsys, const char *buf, +static ssize_t on_panic_store(struct kset *kset, const char *buf, size_t len) { if (strncmp(buf, SHUTDOWN_REIPL_STR, strlen(SHUTDOWN_REIPL_STR)) == 0) diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c index 993f353..23c61f6 100644 --- a/arch/s390/kernel/kprobes.c +++ b/arch/s390/kernel/kprobes.c @@ -516,7 +516,7 @@ out: return 1; } -static int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr) +int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr) { struct kprobe *cur = kprobe_running(); struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); @@ -603,7 +603,6 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self, ret = NOTIFY_STOP; break; case DIE_TRAP: - case DIE_PAGE_FAULT: /* kprobe_running() needs smp_processor_id() */ preempt_disable(); if (kprobe_running() && diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 3dfd098..6bfb088 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -65,7 +65,7 @@ long psw_user_bits = (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_HOME | * User copy operations. */ struct uaccess_ops uaccess; -EXPORT_SYMBOL_GPL(uaccess); +EXPORT_SYMBOL(uaccess); /* * Machine setup.. @@ -74,6 +74,8 @@ unsigned int console_mode = 0; unsigned int console_devno = -1; unsigned int console_irq = -1; unsigned long machine_flags = 0; +unsigned long elf_hwcap = 0; +char elf_platform[ELF_PLATFORM_SIZE]; struct mem_chunk __initdata memory_chunk[MEMORY_CHUNKS]; volatile int __cpu_logical_map[NR_CPUS]; /* logical cpu to cpu address */ @@ -749,6 +751,98 @@ setup_memory(void) #endif } +static __init unsigned int stfl(void) +{ + asm volatile( + " .insn s,0xb2b10000,0(0)\n" /* stfl */ + "0:\n" + EX_TABLE(0b,0b)); + return S390_lowcore.stfl_fac_list; +} + +static __init int stfle(unsigned long long *list, int doublewords) +{ + typedef struct { unsigned long long _[doublewords]; } addrtype; + register unsigned long __nr asm("0") = doublewords - 1; + + asm volatile(".insn s,0xb2b00000,%0" /* stfle */ + : "=m" (*(addrtype *) list), "+d" (__nr) : : "cc"); + return __nr + 1; +} + +/* + * Setup hardware capabilities. + */ +static void __init setup_hwcaps(void) +{ + static const int stfl_bits[6] = { 0, 2, 7, 17, 19, 21 }; + struct cpuinfo_S390 *cpuinfo = &S390_lowcore.cpu_data; + unsigned long long facility_list_extended; + unsigned int facility_list; + int i; + + facility_list = stfl(); + /* + * The store facility list bits numbers as found in the principles + * of operation are numbered with bit 1UL<<31 as number 0 to + * bit 1UL<<0 as number 31. + * Bit 0: instructions named N3, "backported" to esa-mode + * Bit 2: z/Architecture mode is active + * Bit 7: the store-facility-list-extended facility is installed + * Bit 17: the message-security assist is installed + * Bit 19: the long-displacement facility is installed + * Bit 21: the extended-immediate facility is installed + * These get translated to: + * HWCAP_S390_ESAN3 bit 0, HWCAP_S390_ZARCH bit 1, + * HWCAP_S390_STFLE bit 2, HWCAP_S390_MSA bit 3, + * HWCAP_S390_LDISP bit 4, and HWCAP_S390_EIMM bit 5. + */ + for (i = 0; i < 6; i++) + if (facility_list & (1UL << (31 - stfl_bits[i]))) + elf_hwcap |= 1UL << i; + + /* + * Check for additional facilities with store-facility-list-extended. + * stfle stores doublewords (8 byte) with bit 1ULL<<63 as bit 0 + * and 1ULL<<0 as bit 63. Bits 0-31 contain the same information + * as stored by stfl, bits 32-xxx contain additional facilities. + * How many facility words are stored depends on the number of + * doublewords passed to the instruction. The additional facilites + * are: + * Bit 43: decimal floating point facility is installed + * translated to: + * HWCAP_S390_DFP bit 6. + */ + if ((elf_hwcap & (1UL << 2)) && + stfle(&facility_list_extended, 1) > 0) { + if (facility_list_extended & (1ULL << (64 - 43))) + elf_hwcap |= 1UL << 6; + } + + switch (cpuinfo->cpu_id.machine) { + case 0x9672: +#if !defined(CONFIG_64BIT) + default: /* Use "g5" as default for 31 bit kernels. */ +#endif + strcpy(elf_platform, "g5"); + break; + case 0x2064: + case 0x2066: +#if defined(CONFIG_64BIT) + default: /* Use "z900" as default for 64 bit kernels. */ +#endif + strcpy(elf_platform, "z900"); + break; + case 0x2084: + case 0x2086: + strcpy(elf_platform, "z990"); + break; + case 0x2094: + strcpy(elf_platform, "z9-109"); + break; + } +} + /* * Setup function called from init/main.c just after the banner * was printed. @@ -805,6 +899,11 @@ setup_arch(char **cmdline_p) smp_setup_cpu_possible_map(); /* + * Setup capabilities (ELF_HWCAP & ELF_PLATFORM). + */ + setup_hwcaps(); + + /* * Create kernel page tables and switch to virtual addressing. */ paging_init(); @@ -839,8 +938,12 @@ void print_cpu_info(struct cpuinfo_S390 *cpuinfo) static int show_cpuinfo(struct seq_file *m, void *v) { + static const char *hwcap_str[7] = { + "esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp" + }; struct cpuinfo_S390 *cpuinfo; unsigned long n = (unsigned long) v - 1; + int i; s390_adjust_jiffies(); preempt_disable(); @@ -850,7 +953,13 @@ static int show_cpuinfo(struct seq_file *m, void *v) "bogomips per cpu: %lu.%02lu\n", num_online_cpus(), loops_per_jiffy/(500000/HZ), (loops_per_jiffy/(5000/HZ))%100); + seq_puts(m, "features\t: "); + for (i = 0; i < 7; i++) + if (hwcap_str[i] && (elf_hwcap & (1UL << i))) + seq_printf(m, "%s ", hwcap_str[i]); + seq_puts(m, "\n"); } + if (cpu_online(n)) { #ifdef CONFIG_SMP if (smp_processor_id() == n) diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index 418f642..e9d3432 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -107,7 +107,7 @@ SECTIONS . = ALIGN(2); __initramfs_end = .; #endif - . = ALIGN(256); + . = ALIGN(4096); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 2b76a87..91f705a 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -52,38 +52,24 @@ extern int sysctl_userprocess_debug; extern void die(const char *,struct pt_regs *,long); #ifdef CONFIG_KPROBES -static ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain); -int register_page_fault_notifier(struct notifier_block *nb) -{ - return atomic_notifier_chain_register(¬ify_page_fault_chain, nb); -} - -int unregister_page_fault_notifier(struct notifier_block *nb) -{ - return atomic_notifier_chain_unregister(¬ify_page_fault_chain, nb); -} - -static int __kprobes __notify_page_fault(struct pt_regs *regs, long err) -{ - struct die_args args = { .str = "page fault", - .trapnr = 14, - .signr = SIGSEGV }; - args.regs = regs; - args.err = err; - return atomic_notifier_call_chain(¬ify_page_fault_chain, - DIE_PAGE_FAULT, &args); -} - static inline int notify_page_fault(struct pt_regs *regs, long err) { - if (unlikely(kprobe_running())) - return __notify_page_fault(regs, err); - return NOTIFY_DONE; + int ret = 0; + + /* kprobe_running() needs smp_processor_id() */ + if (!user_mode(regs)) { + preempt_disable(); + if (kprobe_running() && kprobe_fault_handler(regs, 14)) + ret = 1; + preempt_enable(); + } + + return ret; } #else static inline int notify_page_fault(struct pt_regs *regs, long err) { - return NOTIFY_DONE; + return 0; } #endif @@ -319,7 +305,7 @@ do_exception(struct pt_regs *regs, unsigned long error_code, int write) int space; int si_code; - if (notify_page_fault(regs, error_code) == NOTIFY_STOP) + if (notify_page_fault(regs, error_code)) return; tsk = current; diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 4d16d89..d74eb12 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -22,6 +22,10 @@ config RWSEM_GENERIC_SPINLOCK config RWSEM_XCHGADD_ALGORITHM bool +config GENERIC_BUG + def_bool y + depends on BUG + config GENERIC_FIND_NEXT_BIT bool default y @@ -88,6 +92,14 @@ config SH_SOLUTION_ENGINE Select SolutionEngine if configuring for a Hitachi SH7709 or SH7750 evaluation board. +config SH_7722_SOLUTION_ENGINE + bool "SolutionEngine7722" + select SOLUTION_ENGINE + select CPU_SUBTYPE_SH7722 + help + Select 7722 SolutionEngine if configuring for a Hitachi SH772 + evaluation board. + config SH_7751_SOLUTION_ENGINE bool "SolutionEngine7751" select SOLUTION_ENGINE @@ -95,6 +107,14 @@ config SH_7751_SOLUTION_ENGINE help Select 7751 SolutionEngine if configuring for a Hitachi SH7751 evaluation board. + +config SH_7780_SOLUTION_ENGINE + bool "SolutionEngine7780" + select SOLUTION_ENGINE + select CPU_SUBTYPE_SH7780 + help + Select 7780 SolutionEngine if configuring for a Renesas SH7780 + evaluation board. config SH_7300_SOLUTION_ENGINE bool "SolutionEngine7300" @@ -193,12 +213,8 @@ config SH_RTS7751R2D Select RTS7751R2D if configuring for a Renesas Technology Sales SH-Graphics board. -config SH_R7780RP - bool "R7780RP-1" - select CPU_SUBTYPE_SH7780 - help - Select R7780RP-1 if configuring for a Renesas Solutions - HIGHLANDER board. +config SH_HIGHLANDER + bool "Highlander" config SH_EDOSK7705 bool "EDOSK7705" @@ -243,6 +259,12 @@ config SH_7619_SOLUTION_ENGINE help Select 7619 SolutionEngine if configuring for a Hitachi SH7619 evaluation board. + +config SH_LBOX_RE2 + bool "L-BOX RE2" + select CPU_SUBTYPE_SH7751R + help + Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2. config SH_UNKNOWN bool "BareCPU" @@ -258,6 +280,10 @@ config SH_UNKNOWN endchoice +source "arch/sh/boards/renesas/hs7751rvoip/Kconfig" +source "arch/sh/boards/renesas/rts7751r2d/Kconfig" +source "arch/sh/boards/renesas/r7780rp/Kconfig" + source "arch/sh/mm/Kconfig" config CF_ENABLER @@ -366,6 +392,16 @@ config SH_STORE_QUEUES Selecting this option will enable an in-kernel API for manipulating the store queues integrated in the SH-4 processors. +config SPECULATIVE_EXECUTION + bool "Speculative subroutine return" + depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL + help + This enables support for a speculative instruction fetch for + subroutine return. There are various pitfalls associated with + this, as outlined in the SH7780 hardware manual. + + If unsure, say N. + config CPU_HAS_INTEVT bool @@ -398,8 +434,9 @@ config CPU_HAS_PTEA endmenu -menu "Timer support" -depends on !GENERIC_TIME +menu "Timer and clock configuration" + +if !GENERIC_TIME config SH_TMU bool "TMU timer support" @@ -422,17 +459,11 @@ config SH_MTU2 help This enables the use of the MTU2 as the system timer. -endmenu - -source "arch/sh/boards/renesas/hs7751rvoip/Kconfig" - -source "arch/sh/boards/renesas/rts7751r2d/Kconfig" - -source "arch/sh/boards/renesas/r7780rp/Kconfig" +endif config SH_TIMER_IRQ int - default "28" if CPU_SUBTYPE_SH7780 + default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 default "86" if CPU_SUBTYPE_SH7619 default "140" if CPU_SUBTYPE_SH7206 default "16" @@ -462,7 +493,8 @@ config SH_PCLK_FREQ default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \ CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ CPU_SUBTYPE_SH7206 - default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780 + default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780 || \ + CPU_SUBTYPE_SH7785 default "60000000" if CPU_SUBTYPE_SH7751 default "66000000" if CPU_SUBTYPE_SH4_202 help @@ -477,6 +509,8 @@ config SH_CLK_MD help MD2 - MD0 pin setting. +endmenu + menu "CPU Frequency scaling" source "drivers/cpufreq/Kconfig" @@ -495,21 +529,6 @@ config SH_CPU_FREQ endmenu -source "arch/sh/drivers/dma/Kconfig" - -source "arch/sh/cchips/Kconfig" - -config HEARTBEAT - bool "Heartbeat LED" - depends on SH_MPC1211 || SH_SH03 || \ - SOLUTION_ENGINE || \ - SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK || \ - SH_R7780RP - help - Use the power-on LED on your machine as a load meter. The exact - behavior is platform-dependent, but normally the flash frequency is - a hyperbolic function of the 5-minute load average. - source "arch/sh/drivers/Kconfig" endmenu @@ -540,6 +559,20 @@ config KEXEC support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made. +config CRASH_DUMP + bool "kernel crash dumps (EXPERIMENTAL)" + depends on EXPERIMENTAL + help + Generate crash dump after being started by kexec. + This should be normally only set in special crash dump kernels + which are loaded in the main kernel with kexec-tools into + a specially reserved region and then later executed after + a crash by kdump/kexec. The crash dump kernel must be compiled + to a memory address not used by the main kernel using + MEMORY_START. + + For more details see Documentation/kdump/kdump.txt + config SMP bool "Symmetric multi-processing support" ---help--- diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug index 87902e0..b563072 100644 --- a/arch/sh/Kconfig.debug +++ b/arch/sh/Kconfig.debug @@ -33,6 +33,7 @@ config EARLY_SCIF_CONSOLE_PORT default "0xffe00000" if CPU_SUBTYPE_SH7780 default "0xfffe9800" if CPU_SUBTYPE_SH7206 default "0xf8420000" if CPU_SUBTYPE_SH7619 + default "0xa4400000" if CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7705 default "0xffe80000" if CPU_SH4 config EARLY_PRINTK @@ -77,16 +78,17 @@ config 4KSTACKS on the VM subsystem for higher order allocations. This option will also use IRQ stacks to compensate for the reduced stackspace. -config KGDB +config SH_KGDB bool "Include KGDB kernel debugger" select FRAME_POINTER + select DEBUG_INFO help Include in-kernel hooks for kgdb, the Linux kernel source level debugger. See <http://kgdb.sourceforge.net/> for more information. Unless you are intending to debug the kernel, say N here. menu "KGDB configuration options" - depends on KGDB + depends on SH_KGDB config MORE_COMPILE_OPTIONS bool "Add any additional compile options" @@ -103,22 +105,16 @@ config KGDB_NMI bool "Enter KGDB on NMI" default n -config KGDB_THREAD - bool "Include KGDB thread support" - default y - config SH_KGDB_CONSOLE bool "Console messages through GDB" + depends on !SERIAL_SH_SCI_CONSOLE + select SERIAL_CORE_CONSOLE default n config KGDB_SYSRQ bool "Allow SysRq 'G' to enter KGDB" default y -config KGDB_KERNEL_ASSERTS - bool "Include KGDB kernel assertions" - default n - comment "Serial port setup" config KGDB_DEFPORT @@ -131,7 +127,7 @@ config KGDB_DEFBAUD choice prompt "Parity" - depends on KGDB + depends on SH_KGDB default KGDB_DEFPARITY_N config KGDB_DEFPARITY_N @@ -147,7 +143,7 @@ endchoice choice prompt "Data bits" - depends on KGDB + depends on SH_KGDB default KGDB_DEFBITS_8 config KGDB_DEFBITS_8 diff --git a/arch/sh/Makefile b/arch/sh/Makefile index bd9b172..7b11224 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -47,7 +47,6 @@ cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -ml cflags-y += $(call as-option,-Wa$(comma)-isa=$(isa-y),) -ffreestanding cflags-$(CONFIG_SH_DSP) += -Wa,-dsp -cflags-$(CONFIG_SH_KGDB) += -g cflags-$(CONFIG_MORE_COMPILE_OPTIONS) += \ $(shell echo $(CONFIG_COMPILE_OPTIONS) | sed -e 's/"//g') @@ -89,7 +88,9 @@ core-$(CONFIG_SH_FPU_EMU) += arch/sh/math-emu/ # Boards machdir-$(CONFIG_SH_SOLUTION_ENGINE) := se/770x +machdir-$(CONFIG_SH_7722_SOLUTION_ENGINE) := se/7722 machdir-$(CONFIG_SH_7751_SOLUTION_ENGINE) := se/7751 +machdir-$(CONFIG_SH_7780_SOLUTION_ENGINE) := se/7780 machdir-$(CONFIG_SH_7300_SOLUTION_ENGINE) := se/7300 machdir-$(CONFIG_SH_7343_SOLUTION_ENGINE) := se/7343 machdir-$(CONFIG_SH_73180_SOLUTION_ENGINE) := se/73180 @@ -103,7 +104,7 @@ machdir-$(CONFIG_SH_HS7751RVOIP) := renesas/hs7751rvoip machdir-$(CONFIG_SH_RTS7751R2D) := renesas/rts7751r2d machdir-$(CONFIG_SH_7751_SYSTEMH) := renesas/systemh machdir-$(CONFIG_SH_EDOSK7705) := renesas/edosk7705 -machdir-$(CONFIG_SH_R7780RP) := renesas/r7780rp +machdir-$(CONFIG_SH_HIGHLANDER) := renesas/r7780rp machdir-$(CONFIG_SH_7710VOIPGW) := renesas/sh7710voipgw machdir-$(CONFIG_SH_SH4202_MICRODEV) := superh/microdev machdir-$(CONFIG_SH_LANDISK) := landisk @@ -111,6 +112,7 @@ machdir-$(CONFIG_SH_TITAN) := titan machdir-$(CONFIG_SH_SHMIN) := shmin machdir-$(CONFIG_SH_7206_SOLUTION_ENGINE) := se/7206 machdir-$(CONFIG_SH_7619_SOLUTION_ENGINE) := se/7619 +machdir-$(CONFIG_SH_LBOX_RE2) := lboxre2 machdir-$(CONFIG_SH_UNKNOWN) := unknown incdir-y := $(notdir $(machdir-y)) diff --git a/arch/sh/boards/hp6xx/Makefile b/arch/sh/boards/hp6xx/Makefile index ff1b7f5..b312427 100644 --- a/arch/sh/boards/hp6xx/Makefile +++ b/arch/sh/boards/hp6xx/Makefile @@ -2,6 +2,6 @@ # Makefile for the HP6xx specific parts of the kernel # -obj-y := setup.o +obj-y := setup.o obj-$(CONFIG_PM) += pm.o pm_wakeup.o -obj-$(CONFIG_APM) += hp6xx_apm.o +obj-$(CONFIG_APM_EMULATION) += hp6xx_apm.o diff --git a/arch/sh/boards/hp6xx/setup.c b/arch/sh/boards/hp6xx/setup.c index b5a9664..6aeee85 100644 --- a/arch/sh/boards/hp6xx/setup.c +++ b/arch/sh/boards/hp6xx/setup.c @@ -2,6 +2,7 @@ * linux/arch/sh/boards/hp6xx/setup.c * * Copyright (C) 2002 Andriy Skulysh + * Copyright (C) 2007 Kristoffer Ericson <Kristoffer_e1@hotmail.com> * * May be copied or modified under the terms of the GNU General Public * License. See linux/COPYING for more information. @@ -10,6 +11,7 @@ */ #include <linux/types.h> #include <linux/init.h> +#include <linux/platform_device.h> #include <asm/hd64461.h> #include <asm/io.h> #include <asm/irq.h> @@ -19,6 +21,40 @@ #define SCPCR 0xa4000116 #define SCPDR 0xa4000136 +/* CF Slot */ +static struct resource cf_ide_resources[] = { + [0] = { + .start = 0x15000000 + 0x1f0, + .end = 0x15000000 + 0x1f0 + 0x08 - 0x01, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = 0x15000000 + 0x1fe, + .end = 0x15000000 + 0x1fe + 0x01, + .flags = IORESOURCE_MEM, + }, + [2] = { + .start = 93, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device cf_ide_device = { + .name = "pata_platform", + .id = -1, + .num_resources = ARRAY_SIZE(cf_ide_resources), + .resource = cf_ide_resources, +}; + +static struct platform_device *hp6xx_devices[] __initdata = { + &cf_ide_device, +}; + +static int __init hp6xx_devices_setup(void) +{ + return platform_add_devices(hp6xx_devices, ARRAY_SIZE(hp6xx_devices)); +} + static void __init hp6xx_setup(char **cmdline_p) { u8 v8; @@ -60,41 +96,12 @@ static void __init hp6xx_setup(char **cmdline_p) v |= SCPCR_TS_ENABLE; ctrl_outw(v, SCPCR); } +device_initcall(hp6xx_devices_setup); -/* - * XXX: This is stupid, we should have a generic machine vector for the cchips - * and just wrap the platform setup code in to this, as it's the only thing - * that ends up being different. - */ struct sh_machine_vector mv_hp6xx __initmv = { .mv_name = "hp6xx", .mv_setup = hp6xx_setup, .mv_nr_irqs = HD64461_IRQBASE + HD64461_IRQ_NUM, - - .mv_inb = hd64461_inb, - .mv_inw = hd64461_inw, - .mv_inl = hd64461_inl, - .mv_outb = hd64461_outb, - .mv_outw = hd64461_outw, - .mv_outl = hd64461_outl, - - .mv_inb_p = hd64461_inb_p, - .mv_inw_p = hd64461_inw, - .mv_inl_p = hd64461_inl, - .mv_outb_p = hd64461_outb_p, - .mv_outw_p = hd64461_outw, - .mv_outl_p = hd64461_outl, - - .mv_insb = hd64461_insb, - .mv_insw = hd64461_insw, - .mv_insl = hd64461_insl, - .mv_outsb = hd64461_outsb, - .mv_outsw = hd64461_outsw, - .mv_outsl = hd64461_outsl, - - .mv_readw = hd64461_readw, - .mv_writew = hd64461_writew, - .mv_irq_demux = hd64461_irq_demux, }; ALIAS_MV(hp6xx) diff --git a/arch/sh/boards/landisk/Makefile b/arch/sh/boards/landisk/Makefile index 89e4beb..a696b42 100644 --- a/arch/sh/boards/landisk/Makefile +++ b/arch/sh/boards/landisk/Makefile @@ -2,4 +2,4 @@ # Makefile for I-O DATA DEVICE, INC. "LANDISK Series" # -obj-y := setup.o io.o irq.o rtc.o landisk_pwb.o +obj-y := setup.o irq.o psw.o gio.o diff --git a/arch/sh/boards/landisk/gio.c b/arch/sh/boards/landisk/gio.c new file mode 100644 index 0000000..50d38be --- /dev/null +++ b/arch/sh/boards/landisk/gio.c @@ -0,0 +1,167 @@ +/* + * arch/sh/boards/landisk/gio.c - driver for landisk + * + * This driver will also support the I-O DATA Device, Inc. LANDISK Board. + * LANDISK and USL-5P Button, LED and GIO driver drive function. + * + * Copylight (C) 2006 kogiidena + * Copylight (C) 2002 Atom Create Engineering Co., Ltd. * + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/kdev_t.h> +#include <linux/cdev.h> +#include <linux/fs.h> +#include <asm/io.h> +#include <asm/uaccess.h> +#include <asm/landisk/gio.h> +#include <asm/landisk/iodata_landisk.h> + +#define DEVCOUNT 4 +#define GIO_MINOR 2 /* GIO minor no. */ + +static dev_t dev; +static struct cdev *cdev_p; +static int openCnt; + +static int gio_open(struct inode *inode, struct file *filp) +{ + int minor; + + minor = MINOR(inode->i_rdev); + if (minor < DEVCOUNT) { + if (openCnt > 0) { + return -EALREADY; + } else { + openCnt++; + return 0; + } + } + return -ENOENT; +} + +static int gio_close(struct inode *inode, struct file *filp) +{ + int minor; + + minor = MINOR(inode->i_rdev); + if (minor < DEVCOUNT) { + openCnt--; + } + return 0; +} + +static int gio_ioctl(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg) +{ + unsigned int data; + static unsigned int addr = 0; + + if (cmd & 0x01) { /* write */ + if (copy_from_user(&data, (int *)arg, sizeof(int))) { + return -EFAULT; + } + } + + switch (cmd) { + case GIODRV_IOCSGIOSETADDR: /* addres set */ + addr = data; + break; + + case GIODRV_IOCSGIODATA1: /* write byte */ + ctrl_outb((unsigned char)(0x0ff & data), addr); + break; + + case GIODRV_IOCSGIODATA2: /* write word */ + if (addr & 0x01) { + return -EFAULT; + } + ctrl_outw((unsigned short int)(0x0ffff & data), addr); + break; + + case GIODRV_IOCSGIODATA4: /* write long */ + if (addr & 0x03) { + return -EFAULT; + } + ctrl_outl(data, addr); + break; + + case GIODRV_IOCGGIODATA1: /* read byte */ + data = ctrl_inb(addr); + break; + + case GIODRV_IOCGGIODATA2: /* read word */ + if (addr & 0x01) { + return -EFAULT; + } + data = ctrl_inw(addr); + break; + + case GIODRV_IOCGGIODATA4: /* read long */ + if (addr & 0x03) { + return -EFAULT; + } + data = ctrl_inl(addr); + break; + default: + return -EFAULT; + break; + } + + if ((cmd & 0x01) == 0) { /* read */ + if (copy_to_user((int *)arg, &data, sizeof(int))) { + return -EFAULT; + } + } + return 0; +} + +static struct file_operations gio_fops = { + .owner = THIS_MODULE, + .open = gio_open, /* open */ + .release = gio_close, /* release */ + .ioctl = gio_ioctl, /* ioctl */ +}; + +static int __init gio_init(void) +{ + int error; + + printk(KERN_INFO "gio: driver initialized\n"); + + openCnt = 0; + + if ((error = alloc_chrdev_region(&dev, 0, DEVCOUNT, "gio")) < 0) { + printk(KERN_ERR + "gio: Couldn't alloc_chrdev_region, error=%d\n", + error); + return 1; + } + + cdev_p = cdev_alloc(); + cdev_p->ops = &gio_fops; + error = cdev_add(cdev_p, dev, DEVCOUNT); + if (error) { + printk(KERN_ERR + "gio: Couldn't cdev_add, error=%d\n", error); + return 1; + } + + return 0; +} + +static void __exit gio_exit(void) +{ + cdev_del(cdev_p); + unregister_chrdev_region(dev, DEVCOUNT); +} + +module_init(gio_init); +module_exit(gio_exit); + +MODULE_LICENSE("GPL"); diff --git a/arch/sh/boards/landisk/io.c b/arch/sh/boards/landisk/io.c deleted file mode 100644 index 92498b4..0000000 --- a/arch/sh/boards/landisk/io.c +++ /dev/null @@ -1,250 +0,0 @@ -/* - * arch/sh/boards/landisk/io.c - * - * Copyright (C) 2001 Ian da Silva, Jeremy Siegel - * Based largely on io_se.c. - * - * I/O routine for I-O Data Device, Inc. LANDISK. - * - * Initial version only to support LAN access; some - * placeholder code from io_landisk.c left in with the - * expectation of later SuperIO and PCMCIA access. - */ -/* - * modifed by kogiidena - * 2005.03.03 - */ -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <asm/landisk/iodata_landisk.h> -#include <asm/addrspace.h> -#include <asm/io.h> - -extern void *area5_io_base; /* Area 5 I/O Base address */ -extern void *area6_io_base; /* Area 6 I/O Base address */ - -static inline unsigned long port2adr(unsigned int port) -{ - if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) - if (port == 0x3f6) - return ((unsigned long)area5_io_base + 0x2c); - else - return ((unsigned long)area5_io_base + PA_PIDE_OFFSET + - ((port - 0x1f0) << 1)); - else if ((0x170 <= port && port < 0x178) || port == 0x376) - if (port == 0x376) - return ((unsigned long)area6_io_base + 0x2c); - else - return ((unsigned long)area6_io_base + PA_SIDE_OFFSET + - ((port - 0x170) << 1)); - else - maybebadio((unsigned long)port); - - return port; -} - -/* - * General outline: remap really low stuff [eventually] to SuperIO, - * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) - * is mapped through the PCI IO window. Stuff with high bits (PXSEG) - * should be way beyond the window, and is used w/o translation for - * compatibility. - */ -u8 landisk_inb(unsigned long port) -{ - if (PXSEG(port)) - return ctrl_inb(port); - else if (is_pci_ioaddr(port)) - return ctrl_inb(pci_ioaddr(port)); - - return ctrl_inw(port2adr(port)) & 0xff; -} - -u8 landisk_inb_p(unsigned long port) -{ - u8 v; - - if (PXSEG(port)) - v = ctrl_inb(port); - else if (is_pci_ioaddr(port)) - v = ctrl_inb(pci_ioaddr(port)); - else - v = ctrl_inw(port2adr(port)) & 0xff; - - ctrl_delay(); - - return v; -} - -u16 landisk_inw(unsigned long port) -{ - if (PXSEG(port)) - return ctrl_inw(port); - else if (is_pci_ioaddr(port)) - return ctrl_inw(pci_ioaddr(port)); - else - maybebadio(port); - - return 0; -} - -u32 landisk_inl(unsigned long port) -{ - if (PXSEG(port)) - return ctrl_inl(port); - else if (is_pci_ioaddr(port)) - return ctrl_inl(pci_ioaddr(port)); - else - maybebadio(port); - - return 0; -} - -void landisk_outb(u8 value, unsigned long port) -{ - if (PXSEG(port)) - ctrl_outb(value, port); - else if (is_pci_ioaddr(port)) - ctrl_outb(value, pci_ioaddr(port)); - else - ctrl_outw(value, port2adr(port)); -} - -void landisk_outb_p(u8 value, unsigned long port) -{ - if (PXSEG(port)) - ctrl_outb(value, port); - else if (is_pci_ioaddr(port)) - ctrl_outb(value, pci_ioaddr(port)); - else - ctrl_outw(value, port2adr(port)); - ctrl_delay(); -} - -void landisk_outw(u16 value, unsigned long port) -{ - if (PXSEG(port)) - ctrl_outw(value, port); - else if (is_pci_ioaddr(port)) - ctrl_outw(value, pci_ioaddr(port)); - else - maybebadio(port); -} - -void landisk_outl(u32 value, unsigned long port) -{ - if (PXSEG(port)) - ctrl_outl(value, port); - else if (is_pci_ioaddr(port)) - ctrl_outl(value, pci_ioaddr(port)); - else - maybebadio(port); -} - -void landisk_insb(unsigned long port, void *dst, unsigned long count) -{ - volatile u16 *p; - u8 *buf = dst; - - if (PXSEG(port)) { - while (count--) - *buf++ = *(volatile u8 *)port; - } else if (is_pci_ioaddr(port)) { - volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); - - while (count--) - *buf++ = *bp; - } else { - p = (volatile u16 *)port2adr(port); - while (count--) - *buf++ = *p & 0xff; - } -} - -void landisk_insw(unsigned long port, void *dst, unsigned long count) -{ - volatile u16 *p; - u16 *buf = dst; - - if (PXSEG(port)) - p = (volatile u16 *)port; - else if (is_pci_ioaddr(port)) - p = (volatile u16 *)pci_ioaddr(port); - else - p = (volatile u16 *)port2adr(port); - while (count--) - *buf++ = *p; -} - -void landisk_insl(unsigned long port, void *dst, unsigned long count) -{ - u32 *buf = dst; - - if (is_pci_ioaddr(port)) { - volatile u32 *p = (volatile u32 *)pci_ioaddr(port); - - while (count--) - *buf++ = *p; - } else - maybebadio(port); -} - -void landisk_outsb(unsigned long port, const void *src, unsigned long count) -{ - volatile u16 *p; - const u8 *buf = src; - - if (PXSEG(port)) - while (count--) - ctrl_outb(*buf++, port); - else if (is_pci_ioaddr(port)) { - volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); - - while (count--) - *bp = *buf++; - } else { - p = (volatile u16 *)port2adr(port); - while (count--) - *p = *buf++; - } -} - -void landisk_outsw(unsigned long port, const void *src, unsigned long count) -{ - volatile u16 *p; - const u16 *buf = src; - - if (PXSEG(port)) - p = (volatile u16 *)port; - else if (is_pci_ioaddr(port)) - p = (volatile u16 *)pci_ioaddr(port); - else - p = (volatile u16 *)port2adr(port); - - while (count--) - *p = *buf++; -} - -void landisk_outsl(unsigned long port, const void *src, unsigned long count) -{ - const u32 *buf = src; - - if (is_pci_ioaddr(port)) { - volatile u32 *p = (volatile u32 *)pci_ioaddr(port); - - while (count--) - *p = *buf++; - } else - maybebadio(port); -} - -void __iomem *landisk_ioport_map(unsigned long port, unsigned int size) -{ - if (PXSEG(port)) - return (void __iomem *)port; - else if (is_pci_ioaddr(port)) - return (void __iomem *)pci_ioaddr(port); - - return (void __iomem *)port2adr(port); -} diff --git a/arch/sh/boards/landisk/irq.c b/arch/sh/boards/landisk/irq.c index 3eba6d0..2586494 100644 --- a/arch/sh/boards/landisk/irq.c +++ b/arch/sh/boards/landisk/irq.c @@ -1,18 +1,16 @@ /* * arch/sh/boards/landisk/irq.c * + * I-O DATA Device, Inc. LANDISK Support + * + * Copyright (C) 2005-2007 kogiidena + * * Copyright (C) 2001 Ian da Silva, Jeremy Siegel * Based largely on io_se.c. * - * I/O routine for I-O Data Device, Inc. LANDISK. - * - * Initial version only to support LAN access; some - * placeholder code from io_landisk.c left in with the - * expectation of later SuperIO and PCMCIA access. - */ -/* - * modified by kogiidena - * 2005.03.03 + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. */ #include <linux/init.h> #include <linux/irq.h> @@ -20,71 +18,27 @@ #include <linux/io.h> #include <asm/landisk/iodata_landisk.h> -static void enable_landisk_irq(unsigned int irq); -static void disable_landisk_irq(unsigned int irq); - -/* shutdown is same as "disable" */ -#define shutdown_landisk_irq disable_landisk_irq - -static void ack_landisk_irq(unsigned int irq); -static void end_landisk_irq(unsigned int irq); - -static unsigned int startup_landisk_irq(unsigned int irq) -{ - enable_landisk_irq(irq); - return 0; /* never anything pending */ -} - static void disable_landisk_irq(unsigned int irq) { - unsigned char val; unsigned char mask = 0xff ^ (0x01 << (irq - 5)); - /* Set the priority in IPR to 0 */ - val = ctrl_inb(PA_IMASK); - val &= mask; - ctrl_outb(val, PA_IMASK); + ctrl_outb(ctrl_inb(PA_IMASK) & mask, PA_IMASK); } static void enable_landisk_irq(unsigned int irq) { - unsigned char val; unsigned char value = (0x01 << (irq - 5)); - /* Set priority in IPR back to original value */ - val = ctrl_inb(PA_IMASK); - val |= value; - ctrl_outb(val, PA_IMASK); -} - -static void ack_landisk_irq(unsigned int irq) -{ - disable_landisk_irq(irq); -} - -static void end_landisk_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) - enable_landisk_irq(irq); + ctrl_outb(ctrl_inb(PA_IMASK) | value, PA_IMASK); } -static struct hw_interrupt_type landisk_irq_type = { - .typename = "LANDISK IRQ", - .startup = startup_landisk_irq, - .shutdown = shutdown_landisk_irq, - .enable = enable_landisk_irq, - .disable = disable_landisk_irq, - .ack = ack_landisk_irq, - .end = end_landisk_irq +static struct irq_chip landisk_irq_chip __read_mostly = { + .name = "LANDISK", + .mask = disable_landisk_irq, + .unmask = enable_landisk_irq, + .mask_ack = disable_landisk_irq, }; -static void make_landisk_irq(unsigned int irq) -{ - disable_irq_nosync(irq); - irq_desc[irq].chip = &landisk_irq_type; - disable_landisk_irq(irq); -} - /* * Initialize IRQ setting */ @@ -92,6 +46,11 @@ void __init init_landisk_IRQ(void) { int i; - for (i = 5; i < 14; i++) - make_landisk_irq(i); + for (i = 5; i < 14; i++) { + disable_irq_nosync(i); + set_irq_chip_and_handler_name(i, &landisk_irq_chip, + handle_level_irq, "level"); + enable_landisk_irq(i); + } + ctrl_outb(0x00, PA_PWRINT_CLR); } diff --git a/arch/sh/boards/landisk/landisk_pwb.c b/arch/sh/boards/landisk/landisk_pwb.c deleted file mode 100644 index 47a63c6..0000000 --- a/arch/sh/boards/landisk/landisk_pwb.c +++ /dev/null @@ -1,346 +0,0 @@ -/* - * arch/sh/boards/landisk/landisk_pwb.c -- driver for the Power control switch. - * - * This driver will also support the I-O DATA Device, Inc. LANDISK Board. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copylight (C) 2002 Atom Create Engineering Co., Ltd. - * - * LED control drive function added by kogiidena - */ -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/signal.h> -#include <linux/major.h> -#include <linux/poll.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/sched.h> -#include <linux/timer.h> -#include <linux/interrupt.h> - -#include <asm/system.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/uaccess.h> -#include <asm/landisk/iodata_landisk.h> - -#define SHUTDOWN_BTN_MINOR 1 /* Shutdown button device minor no. */ -#define LED_MINOR 21 /* LED minor no. */ -#define BTN_MINOR 22 /* BUTTON minor no. */ -#define GIO_MINOR 40 /* GIO minor no. */ - -static int openCnt; -static int openCntLED; -static int openCntGio; -static int openCntBtn; -static int landisk_btn; -static int landisk_btnctrlpid; -/* - * Functions prototypes - */ - -static int gio_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, - unsigned long arg); - -static int swdrv_open(struct inode *inode, struct file *filp) -{ - int minor; - - minor = MINOR(inode->i_rdev); - filp->private_data = (void *)minor; - - if (minor == SHUTDOWN_BTN_MINOR) { - if (openCnt > 0) { - return -EALREADY; - } else { - openCnt++; - return 0; - } - } else if (minor == LED_MINOR) { - if (openCntLED > 0) { - return -EALREADY; - } else { - openCntLED++; - return 0; - } - } else if (minor == BTN_MINOR) { - if (openCntBtn > 0) { - return -EALREADY; - } else { - openCntBtn++; - return 0; - } - } else if (minor == GIO_MINOR) { - if (openCntGio > 0) { - return -EALREADY; - } else { - openCntGio++; - return 0; - } - } - return -ENOENT; - -} - -static int swdrv_close(struct inode *inode, struct file *filp) -{ - int minor; - - minor = MINOR(inode->i_rdev); - if (minor == SHUTDOWN_BTN_MINOR) { - openCnt--; - } else if (minor == LED_MINOR) { - openCntLED--; - } else if (minor == BTN_MINOR) { - openCntBtn--; - } else if (minor == GIO_MINOR) { - openCntGio--; - } - return 0; -} - -static int swdrv_read(struct file *filp, char *buff, size_t count, - loff_t * ppos) -{ - int minor; - minor = (int)(filp->private_data); - - if (!access_ok(VERIFY_WRITE, (void *)buff, count)) - return -EFAULT; - - if (minor == SHUTDOWN_BTN_MINOR) { - if (landisk_btn & 0x10) { - put_user(1, buff); - return 1; - } else { - return 0; - } - } - return 0; -} - -static int swdrv_write(struct file *filp, const char *buff, size_t count, - loff_t * ppos) -{ - int minor; - minor = (int)(filp->private_data); - - if (minor == SHUTDOWN_BTN_MINOR) { - return count; - } - return count; -} - -static irqreturn_t sw_interrupt(int irq, void *dev_id) -{ - landisk_btn = (0x0ff & (~ctrl_inb(PA_STATUS))); - disable_irq(IRQ_BUTTON); - disable_irq(IRQ_POWER); - ctrl_outb(0x00, PA_PWRINT_CLR); - - if (landisk_btnctrlpid != 0) { - kill_proc(landisk_btnctrlpid, SIGUSR1, 1); - landisk_btnctrlpid = 0; - } - - return IRQ_HANDLED; -} - -static const struct file_operations swdrv_fops = { - .read = swdrv_read, /* read */ - .write = swdrv_write, /* write */ - .open = swdrv_open, /* open */ - .release = swdrv_close, /* release */ - .ioctl = gio_ioctl, /* ioctl */ - -}; - -static char banner[] __initdata = - KERN_INFO "LANDISK and USL-5P Button, LED and GIO driver initialized\n"; - -int __init swdrv_init(void) -{ - int error; - - printk("%s", banner); - - openCnt = 0; - openCntLED = 0; - openCntBtn = 0; - openCntGio = 0; - landisk_btn = 0; - landisk_btnctrlpid = 0; - - if ((error = register_chrdev(SHUTDOWN_BTN_MAJOR, "swdrv", &swdrv_fops))) { - printk(KERN_ERR - "Button, LED and GIO driver:Couldn't register driver, error=%d\n", - error); - return 1; - } - - if (request_irq(IRQ_POWER, sw_interrupt, 0, "SHUTDOWNSWITCH", NULL)) { - printk(KERN_ERR "Unable to get IRQ 11.\n"); - return 1; - } - if (request_irq(IRQ_BUTTON, sw_interrupt, 0, "USL-5P BUTTON", NULL)) { - printk(KERN_ERR "Unable to get IRQ 12.\n"); - return 1; - } - ctrl_outb(0x00, PA_PWRINT_CLR); - - return 0; -} - -module_init(swdrv_init); - -/* - * gio driver - * - */ - -#include <asm/landisk/gio.h> - -static int gio_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) -{ - int minor; - unsigned int data, mask; - static unsigned int addr = 0; - - minor = (int)(filp->private_data); - - /* access control */ - if (minor == GIO_MINOR) { - ; - } else if (minor == LED_MINOR) { - if (((cmd & 0x0ff) >= 9) && ((cmd & 0x0ff) < 20)) { - ; - } else { - return -EINVAL; - } - } else if (minor == BTN_MINOR) { - if (((cmd & 0x0ff) >= 20) && ((cmd & 0x0ff) < 30)) { - ; - } else { - return -EINVAL; - } - } else { - return -EINVAL; - } - - if (cmd & 0x01) { /* write */ - if (copy_from_user(&data, (int *)arg, sizeof(int))) { - return -EFAULT; - } - } - - switch (cmd) { - case GIODRV_IOCSGIOSETADDR: /* addres set */ - addr = data; - break; - - case GIODRV_IOCSGIODATA1: /* write byte */ - ctrl_outb((unsigned char)(0x0ff & data), addr); - break; - - case GIODRV_IOCSGIODATA2: /* write word */ - if (addr & 0x01) { - return -EFAULT; - } - ctrl_outw((unsigned short int)(0x0ffff & data), addr); - break; - - case GIODRV_IOCSGIODATA4: /* write long */ - if (addr & 0x03) { - return -EFAULT; - } - ctrl_outl(data, addr); - break; - - case GIODRV_IOCGGIODATA1: /* read byte */ - data = ctrl_inb(addr); - break; - - case GIODRV_IOCGGIODATA2: /* read word */ - if (addr & 0x01) { - return -EFAULT; - } - data = ctrl_inw(addr); - break; - - case GIODRV_IOCGGIODATA4: /* read long */ - if (addr & 0x03) { - return -EFAULT; - } - data = ctrl_inl(addr); - break; - case GIODRV_IOCSGIO_LED: /* write */ - mask = ((data & 0x00ffffff) << 8) - | ((data & 0x0000ffff) << 16) - | ((data & 0x000000ff) << 24); - landisk_ledparam = data & (~mask); - if (landisk_arch == 0) { /* arch == landisk */ - landisk_ledparam &= 0x03030303; - mask = (~(landisk_ledparam >> 22)) & 0x000c; - landisk_ledparam |= mask; - } else { /* arch == usl-5p */ - mask = (landisk_ledparam >> 24) & 0x0001; - landisk_ledparam |= mask; - landisk_ledparam &= 0x007f7f7f; - } - landisk_ledparam |= 0x80; - break; - case GIODRV_IOCGGIO_LED: /* read */ - data = landisk_ledparam; - if (landisk_arch == 0) { /* arch == landisk */ - data &= 0x03030303; - } else { /* arch == usl-5p */ - ; - } - data &= (~0x080); - break; - case GIODRV_IOCSGIO_BUZZER: /* write */ - landisk_buzzerparam = data; - landisk_ledparam |= 0x80; - break; - case GIODRV_IOCGGIO_LANDISK: /* read */ - data = landisk_arch & 0x01; - break; - case GIODRV_IOCGGIO_BTN: /* read */ - data = (0x0ff & ctrl_inb(PA_PWRINT_CLR)); - data <<= 8; - data |= (0x0ff & ctrl_inb(PA_IMASK)); - data <<= 8; - data |= (0x0ff & landisk_btn); - data <<= 8; - data |= (0x0ff & (~ctrl_inb(PA_STATUS))); - break; - case GIODRV_IOCSGIO_BTNPID: /* write */ - landisk_btnctrlpid = data; - landisk_btn = 0; - if (irq_desc[IRQ_BUTTON].depth) { - enable_irq(IRQ_BUTTON); - } - if (irq_desc[IRQ_POWER].depth) { - enable_irq(IRQ_POWER); - } - break; - case GIODRV_IOCGGIO_BTNPID: /* read */ - data = landisk_btnctrlpid; - break; - default: - return -EFAULT; - break; - } - - if ((cmd & 0x01) == 0) { /* read */ - if (copy_to_user((int *)arg, &data, sizeof(int))) { - return -EFAULT; - } - } - return 0; -} diff --git a/arch/sh/boards/landisk/psw.c b/arch/sh/boards/landisk/psw.c new file mode 100644 index 0000000..5a9b70b --- /dev/null +++ b/arch/sh/boards/landisk/psw.c @@ -0,0 +1,143 @@ +/* + * arch/sh/boards/landisk/psw.c + * + * push switch support for LANDISK and USL-5P + * + * Copyright (C) 2006-2007 Paul Mundt + * Copyright (C) 2007 kogiidena + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/io.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <asm/landisk/iodata_landisk.h> +#include <asm/push-switch.h> + +static irqreturn_t psw_irq_handler(int irq, void *arg) +{ + struct platform_device *pdev = arg; + struct push_switch *psw = platform_get_drvdata(pdev); + struct push_switch_platform_info *psw_info = pdev->dev.platform_data; + unsigned int sw_value; + int ret = 0; + + sw_value = (0x0ff & (~ctrl_inb(PA_STATUS))); + + /* Nothing to do if there's no state change */ + if (psw->state) { + ret = 1; + goto out; + } + + /* Figure out who raised it */ + if (sw_value & (1 << psw_info->bit)) { + psw->state = 1; + mod_timer(&psw->debounce, jiffies + 50); + ret = 1; + } + +out: + /* Clear the switch IRQs */ + ctrl_outb(0x00, PA_PWRINT_CLR); + + return IRQ_RETVAL(ret); +} + +static struct resource psw_power_resources[] = { + [0] = { + .start = IRQ_POWER, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource psw_usl5p_resources[] = { + [0] = { + .start = IRQ_BUTTON, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct push_switch_platform_info psw_power_platform_data = { + .name = "psw_power", + .bit = 4, + .irq_flags = IRQF_SHARED, + .irq_handler = psw_irq_handler, +}; + +static struct push_switch_platform_info psw1_platform_data = { + .name = "psw1", + .bit = 0, + .irq_flags = IRQF_SHARED, + .irq_handler = psw_irq_handler, +}; + +static struct push_switch_platform_info psw2_platform_data = { + .name = "psw2", + .bit = 2, + .irq_flags = IRQF_SHARED, + .irq_handler = psw_irq_handler, +}; + +static struct push_switch_platform_info psw3_platform_data = { + .name = "psw3", + .bit = 1, + .irq_flags = IRQF_SHARED, + .irq_handler = psw_irq_handler, +}; + +static struct platform_device psw_power_switch_device = { + .name = "push-switch", + .id = 0, + .num_resources = ARRAY_SIZE(psw_power_resources), + .resource = psw_power_resources, + .dev = { + .platform_data = &psw_power_platform_data, + }, +}; + +static struct platform_device psw1_switch_device = { + .name = "push-switch", + .id = 1, + .num_resources = ARRAY_SIZE(psw_usl5p_resources), + .resource = psw_usl5p_resources, + .dev = { + .platform_data = &psw1_platform_data, + }, +}; + +static struct platform_device psw2_switch_device = { + .name = "push-switch", + .id = 2, + .num_resources = ARRAY_SIZE(psw_usl5p_resources), + .resource = psw_usl5p_resources, + .dev = { + .platform_data = &psw2_platform_data, + }, +}; + +static struct platform_device psw3_switch_device = { + .name = "push-switch", + .id = 3, + .num_resources = ARRAY_SIZE(psw_usl5p_resources), + .resource = psw_usl5p_resources, + .dev = { + .platform_data = &psw3_platform_data, + }, +}; + +static struct platform_device *psw_devices[] = { + &psw_power_switch_device, + &psw1_switch_device, + &psw2_switch_device, + &psw3_switch_device, +}; + +static int __init psw_init(void) +{ + return platform_add_devices(psw_devices, ARRAY_SIZE(psw_devices)); +} +module_init(psw_init); diff --git a/arch/sh/boards/landisk/rtc.c b/arch/sh/boards/landisk/rtc.c deleted file mode 100644 index 0a9a2a2..0000000 --- a/arch/sh/boards/landisk/rtc.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - * arch/sh/boards/landisk/rtc.c -- RTC support - * - * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org> - * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka - */ -/* - * modifed by kogiidena - * 2005.09.16 - */ -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/time.h> -#include <linux/delay.h> -#include <linux/spinlock.h> -#include <linux/bcd.h> -#include <asm/rtc.h> - -extern spinlock_t rtc_lock; - -extern void -rs5c313_set_cmos_time(unsigned int BCD_yr, unsigned int BCD_mon, - unsigned int BCD_day, unsigned int BCD_hr, - unsigned int BCD_min, unsigned int BCD_sec); - -extern unsigned long -rs5c313_get_cmos_time(unsigned int *BCD_yr, unsigned int *BCD_mon, - unsigned int *BCD_day, unsigned int *BCD_hr, - unsigned int *BCD_min, unsigned int *BCD_sec); - -void landisk_rtc_gettimeofday(struct timespec *tv) -{ - unsigned int BCD_yr, BCD_mon, BCD_day, BCD_hr, BCD_min, BCD_sec; - unsigned long flags; - - spin_lock_irqsave(&rtc_lock, flags); - tv->tv_sec = rs5c313_get_cmos_time - (&BCD_yr, &BCD_mon, &BCD_day, &BCD_hr, &BCD_min, &BCD_sec); - tv->tv_nsec = 0; - spin_unlock_irqrestore(&rtc_lock, flags); -} - -int landisk_rtc_settimeofday(const time_t secs) -{ - int retval = 0; - int real_seconds, real_minutes, cmos_minutes; - unsigned long flags; - unsigned long nowtime = secs; - unsigned int BCD_yr, BCD_mon, BCD_day, BCD_hr, BCD_min, BCD_sec; - - spin_lock_irqsave(&rtc_lock, flags); - - rs5c313_get_cmos_time - (&BCD_yr, &BCD_mon, &BCD_day, &BCD_hr, &BCD_min, &BCD_sec); - cmos_minutes = BCD_min; - BCD_TO_BIN(cmos_minutes); - - /* - * since we're only adjusting minutes and seconds, - * don't interfere with hour overflow. This avoids - * messing with unknown time zones but requires your - * RTC not to be off by more than 15 minutes - */ - real_seconds = nowtime % 60; - real_minutes = nowtime / 60; - if (((abs(real_minutes - cmos_minutes) + 15) / 30) & 1) - real_minutes += 30; /* correct for half hour time zone */ - real_minutes %= 60; - - if (abs(real_minutes - cmos_minutes) < 30) { - BIN_TO_BCD(real_seconds); - BIN_TO_BCD(real_minutes); - rs5c313_set_cmos_time(BCD_yr, BCD_mon, BCD_day, BCD_hr, - real_minutes, real_seconds); - } else { - printk(KERN_WARNING - "set_rtc_time: can't update from %d to %d\n", - cmos_minutes, real_minutes); - retval = -1; - } - - spin_unlock_irqrestore(&rtc_lock, flags); - return retval; -} - -void landisk_time_init(void) -{ - rtc_sh_get_time = landisk_rtc_gettimeofday; - rtc_sh_set_time = landisk_rtc_settimeofday; -} diff --git a/arch/sh/boards/landisk/setup.c b/arch/sh/boards/landisk/setup.c index 122d699..a83a5d9 100644 --- a/arch/sh/boards/landisk/setup.c +++ b/arch/sh/boards/landisk/setup.c @@ -1,144 +1,90 @@ /* * arch/sh/boards/landisk/setup.c * - * Copyright (C) 2000 Kazumoto Kojima - * Copyright (C) 2002 Paul Mundt - * * I-O DATA Device, Inc. LANDISK Support. * - * Modified for LANDISK by - * Atom Create Engineering Co., Ltd. 2002. - * - * modifed by kogiidena - * 2005.09.16 + * Copyright (C) 2000 Kazumoto Kojima + * Copyright (C) 2002 Paul Mundt + * Copylight (C) 2002 Atom Create Engineering Co., Ltd. + * Copyright (C) 2005-2007 kogiidena * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ #include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/pata_platform.h> #include <linux/pm.h> #include <linux/mm.h> #include <asm/machvec.h> -#include <asm/rtc.h> #include <asm/landisk/iodata_landisk.h> #include <asm/io.h> -void landisk_time_init(void); void init_landisk_IRQ(void); -int landisk_ledparam; -int landisk_buzzerparam; -int landisk_arch; - -/* cycle the led's in the clasic knightrider/sun pattern */ -static void heartbeat_landisk(void) -{ - static unsigned int cnt = 0, blink = 0x00, period = 25; - volatile u8 *p = (volatile u8 *)PA_LED; - char data; - - if ((landisk_ledparam & 0x080) == 0) - return; - - cnt += 1; - - if (cnt < period) - return; - - cnt = 0; - blink++; - - data = (blink & 0x01) ? (landisk_ledparam >> 16) : 0; - data |= (blink & 0x02) ? (landisk_ledparam >> 8) : 0; - data |= landisk_ledparam; - - /* buzzer */ - if (landisk_buzzerparam & 0x1) { - data |= 0x80; - } else { - data &= 0x7f; - } - *p = data; - - if (((landisk_ledparam & 0x007f7f00) == 0) && - (landisk_buzzerparam == 0)) - landisk_ledparam &= (~0x0080); - - landisk_buzzerparam >>= 1; -} - static void landisk_power_off(void) { ctrl_outb(0x01, PA_SHUTDOWN); } -static void check_usl5p(void) -{ - volatile u8 *p = (volatile u8 *)PA_LED; - u8 tmp1, tmp2; +static struct resource cf_ide_resources[3]; - tmp1 = *p; - *p = 0x40; - tmp2 = *p; - *p = tmp1; +static struct pata_platform_info pata_info = { + .ioport_shift = 1, +}; - landisk_arch = (tmp2 == 0x40); - if (landisk_arch == 1) { - /* arch == usl-5p */ - landisk_ledparam = 0x00000380; - landisk_ledparam |= (tmp1 & 0x07c); - } else { - /* arch == landisk */ - landisk_ledparam = 0x02000180; - landisk_ledparam |= 0x04; - } -} +static struct platform_device cf_ide_device = { + .name = "pata_platform", + .id = -1, + .num_resources = ARRAY_SIZE(cf_ide_resources), + .resource = cf_ide_resources, + .dev = { + .platform_data = &pata_info, + }, +}; -void *area5_io_base; -void *area6_io_base; +static struct platform_device *landisk_devices[] __initdata = { + &cf_ide_device, +}; -static int __init landisk_cf_init(void) +static int __init landisk_devices_setup(void) { pgprot_t prot; - unsigned long paddrbase, psize; + unsigned long paddrbase; + void *cf_ide_base; /* open I/O area window */ paddrbase = virt_to_phys((void *)PA_AREA5_IO); - psize = PAGE_SIZE; prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_IO16); - area5_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); - if (!area5_io_base) { + cf_ide_base = p3_ioremap(paddrbase, PAGE_SIZE, prot.pgprot); + if (!cf_ide_base) { printk("allocate_cf_area : can't open CF I/O window!\n"); return -ENOMEM; } - paddrbase = virt_to_phys((void *)PA_AREA6_IO); - psize = PAGE_SIZE; - prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO16); - area6_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); - if (!area6_io_base) { - printk("allocate_cf_area : can't open HDD I/O window!\n"); - return -ENOMEM; - } - - printk(KERN_INFO "Allocate Area5/6 success.\n"); - - /* XXX : do we need attribute and common-memory area also? */ - - return 0; + /* IDE cmd address : 0x1f0-0x1f7 and 0x3f6 */ + cf_ide_resources[0].start = (unsigned long)cf_ide_base + 0x40; + cf_ide_resources[0].end = (unsigned long)cf_ide_base + 0x40 + 0x0f; + cf_ide_resources[0].flags = IORESOURCE_IO; + cf_ide_resources[1].start = (unsigned long)cf_ide_base + 0x2c; + cf_ide_resources[1].end = (unsigned long)cf_ide_base + 0x2c + 0x03; + cf_ide_resources[1].flags = IORESOURCE_IO; + cf_ide_resources[2].start = IRQ_FATA; + cf_ide_resources[2].flags = IORESOURCE_IRQ; + + return platform_add_devices(landisk_devices, + ARRAY_SIZE(landisk_devices)); } +__initcall(landisk_devices_setup); + static void __init landisk_setup(char **cmdline_p) { - device_initcall(landisk_cf_init); - - landisk_buzzerparam = 0; - check_usl5p(); + /* LED ON */ + ctrl_outb(ctrl_inb(PA_LED) | 0x03, PA_LED); printk(KERN_INFO "I-O DATA DEVICE, INC. \"LANDISK Series\" support.\n"); - - board_time_init = landisk_time_init; pm_power_off = landisk_power_off; } @@ -148,29 +94,6 @@ static void __init landisk_setup(char **cmdline_p) struct sh_machine_vector mv_landisk __initmv = { .mv_name = "LANDISK", .mv_setup = landisk_setup, - .mv_nr_irqs = 72, - .mv_inb = landisk_inb, - .mv_inw = landisk_inw, - .mv_inl = landisk_inl, - .mv_outb = landisk_outb, - .mv_outw = landisk_outw, - .mv_outl = landisk_outl, - .mv_inb_p = landisk_inb_p, - .mv_inw_p = landisk_inw, - .mv_inl_p = landisk_inl, - .mv_outb_p = landisk_outb_p, - .mv_outw_p = landisk_outw, - .mv_outl_p = landisk_outl, - .mv_insb = landisk_insb, - .mv_insw = landisk_insw, - .mv_insl = landisk_insl, - .mv_outsb = landisk_outsb, - .mv_outsw = landisk_outsw, - .mv_outsl = landisk_outsl, - .mv_ioport_map = landisk_ioport_map, .mv_init_irq = init_landisk_IRQ, -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_landisk, -#endif }; ALIAS_MV(landisk) diff --git a/arch/sh/boards/lboxre2/Makefile b/arch/sh/boards/lboxre2/Makefile new file mode 100644 index 0000000..e9ed140 --- /dev/null +++ b/arch/sh/boards/lboxre2/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for the L-BOX RE2 specific parts of the kernel +# Copyright (c) 2007 Nobuhiro Iwamatsu + +obj-y := setup.o irq.o diff --git a/arch/sh/boards/lboxre2/irq.c b/arch/sh/boards/lboxre2/irq.c new file mode 100644 index 0000000..5a1c3bb --- /dev/null +++ b/arch/sh/boards/lboxre2/irq.c @@ -0,0 +1,31 @@ +/* + * linux/arch/sh/boards/lboxre2/irq.c + * + * Copyright (C) 2007 Nobuhiro Iwamatsu + * + * NTT COMWARE L-BOX RE2 Support. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + */ +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <asm/irq.h> +#include <asm/io.h> +#include <asm/lboxre2.h> + +/* + * Initialize IRQ setting + */ +void __init init_lboxre2_IRQ(void) +{ + make_imask_irq(IRQ_CF1); + make_imask_irq(IRQ_CF0); + make_imask_irq(IRQ_INTD); + make_imask_irq(IRQ_ETH1); + make_imask_irq(IRQ_ETH0); + make_imask_irq(IRQ_INTA); +} diff --git a/arch/sh/boards/lboxre2/setup.c b/arch/sh/boards/lboxre2/setup.c new file mode 100644 index 0000000..4e20f7c --- /dev/null +++ b/arch/sh/boards/lboxre2/setup.c @@ -0,0 +1,85 @@ +/* + * linux/arch/sh/boards/lbox/setup.c + * + * Copyright (C) 2007 Nobuhiro Iwamatsu + * + * NTT COMWARE L-BOX RE2 Support + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + */ + +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/pata_platform.h> +#include <asm/machvec.h> +#include <asm/addrspace.h> +#include <asm/lboxre2.h> +#include <asm/io.h> + +static struct resource cf_ide_resources[] = { + [0] = { + .start = 0x1f0, + .end = 0x1f0 + 8 , + .flags = IORESOURCE_IO, + }, + [1] = { + .start = 0x1f0 + 0x206, + .end = 0x1f0 +8 + 0x206 + 8, + .flags = IORESOURCE_IO, + }, + [2] = { + .start = IRQ_CF0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device cf_ide_device = { + .name = "pata_platform", + .id = -1, + .num_resources = ARRAY_SIZE(cf_ide_resources), + .resource = cf_ide_resources, +}; + +static struct platform_device *lboxre2_devices[] __initdata = { + &cf_ide_device, +}; + +static int __init lboxre2_devices_setup(void) +{ + u32 cf0_io_base; /* Boot CF base address */ + pgprot_t prot; + unsigned long paddrbase, psize; + + /* open I/O area window */ + paddrbase = virt_to_phys((void*)PA_AREA5_IO); + psize = PAGE_SIZE; + prot = PAGE_KERNEL_PCC( 1 , _PAGE_PCC_IO16); + cf0_io_base = (u32)p3_ioremap(paddrbase, psize, prot.pgprot); + if (!cf0_io_base) { + printk(KERN_ERR "%s : can't open CF I/O window!\n" , __func__ ); + return -ENOMEM; + } + + cf_ide_resources[0].start += cf0_io_base ; + cf_ide_resources[0].end += cf0_io_base ; + cf_ide_resources[1].start += cf0_io_base ; + cf_ide_resources[1].end += cf0_io_base ; + + return platform_add_devices(lboxre2_devices, + ARRAY_SIZE(lboxre2_devices)); + +} +device_initcall(lboxre2_devices_setup); + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_lboxre2 __initmv = { + .mv_name = "L-BOX RE2", + .mv_nr_irqs = 72, + .mv_init_irq = init_lboxre2_IRQ, +}; +ALIAS_MV(lboxre2) diff --git a/arch/sh/boards/renesas/r7780rp/Kconfig b/arch/sh/boards/renesas/r7780rp/Kconfig index c26d981..9fb1164 100644 --- a/arch/sh/boards/renesas/r7780rp/Kconfig +++ b/arch/sh/boards/renesas/r7780rp/Kconfig @@ -1,14 +1,24 @@ -if SH_R7780RP +if SH_HIGHLANDER -menu "R7780RP options" +choice + prompt "Highlander options" + default SH_R7780MP + +config SH_R7780RP + bool "R7780RP-1 board support" + select CPU_SUBTYPE_SH7780 config SH_R7780MP bool "R7780MP board support" - default y + select CPU_SUBTYPE_SH7780 help Selecting this option will enable support for the mass-production version of the R7780RP. If in doubt, say Y. -endmenu +config SH_R7785RP + bool "R7785RP board support" + select CPU_SUBTYPE_SH7785 + +endchoice endif diff --git a/arch/sh/boards/renesas/r7780rp/Makefile b/arch/sh/boards/renesas/r7780rp/Makefile index ed5f5a9..609e5d5 100644 --- a/arch/sh/boards/renesas/r7780rp/Makefile +++ b/arch/sh/boards/renesas/r7780rp/Makefile @@ -1,7 +1,7 @@ # # Makefile for the R7780RP-1 specific parts of the kernel # - -obj-y := setup.o irq.o - +irqinit-y := irq-r7780rp.o +irqinit-$(CONFIG_SH_R7785RP) := irq-r7785rp.o obj-$(CONFIG_PUSH_SWITCH) += psw.o +obj-y := setup.o irq.o $(irqinit-y) diff --git a/arch/sh/boards/renesas/r7780rp/irq-r7780rp.c b/arch/sh/boards/renesas/r7780rp/irq-r7780rp.c new file mode 100644 index 0000000..f5f3587 --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/irq-r7780rp.c @@ -0,0 +1,21 @@ +/* + * Renesas Solutions Highlander R7780RP-1 Support. + * + * Copyright (C) 2002 Atom Create Engineering Co., Ltd. + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <asm/io.h> +#include <asm/r7780rp.h> + +void __init highlander_init_irq(void) +{ + int i; + + for (i = 0; i < 15; i++) + make_r7780rp_irq(i); +} diff --git a/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c b/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c new file mode 100644 index 0000000..dd6ec4c --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/irq-r7785rp.c @@ -0,0 +1,29 @@ +/* + * Renesas Solutions Highlander R7780RP-1 Support. + * + * Copyright (C) 2002 Atom Create Engineering Co., Ltd. + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <asm/io.h> +#include <asm/r7780rp.h> + +void __init highlander_init_irq(void) +{ + ctrl_outw(0x0000, PA_IRLSSR1); /* FPGA IRLSSR1(CF_CD clear) */ + + /* Setup the FPGA IRL */ + ctrl_outw(0x0000, PA_IRLPRA); /* FPGA IRLA */ + ctrl_outw(0xe598, PA_IRLPRB); /* FPGA IRLB */ + ctrl_outw(0x7060, PA_IRLPRC); /* FPGA IRLC */ + ctrl_outw(0x0000, PA_IRLPRD); /* FPGA IRLD */ + ctrl_outw(0x4321, PA_IRLPRE); /* FPGA IRLE */ + ctrl_outw(0x0000, PA_IRLPRF); /* FPGA IRLF */ + + make_r7780rp_irq(1); /* CF card */ + make_r7780rp_irq(10); /* On-board ethernet */ +} diff --git a/arch/sh/boards/renesas/r7780rp/irq.c b/arch/sh/boards/renesas/r7780rp/irq.c index cc381e1..e0b8eb5 100644 --- a/arch/sh/boards/renesas/r7780rp/irq.c +++ b/arch/sh/boards/renesas/r7780rp/irq.c @@ -14,10 +14,12 @@ #include <linux/io.h> #include <asm/r7780rp.h> -#ifdef CONFIG_SH_R7780MP -static int mask_pos[] = {12, 11, 9, 14, 15, 8, 13, 6, 5, 4, 3, 2, 0, 0, 1, 0}; -#else +#ifdef CONFIG_SH_R7780RP static int mask_pos[] = {15, 14, 13, 12, 11, 10, 9, 8, 7, 5, 6, 4, 0, 1, 2, 0}; +#elif defined(CONFIG_SH_R7780MP) +static int mask_pos[] = {12, 11, 9, 14, 15, 8, 13, 6, 5, 4, 3, 2, 0, 0, 1, 0}; +#elif defined(CONFIG_SH_R7785RP) +static int mask_pos[] = {2, 11, 2, 2, 2, 2, 9, 8, 7, 5, 10, 2, 2, 2, 2, 2}; #endif static void enable_r7780rp_irq(unsigned int irq) @@ -40,17 +42,10 @@ static struct irq_chip r7780rp_irq_chip __read_mostly = { .mask_ack = disable_r7780rp_irq, }; -/* - * Initialize IRQ setting - */ -void __init init_r7780rp_IRQ(void) +void make_r7780rp_irq(unsigned int irq) { - int i; - - for (i = 0; i < 15; i++) { - disable_irq_nosync(i); - set_irq_chip_and_handler_name(i, &r7780rp_irq_chip, - handle_level_irq, "level"); - enable_r7780rp_irq(i); - } + disable_irq_nosync(irq); + set_irq_chip_and_handler_name(irq, &r7780rp_irq_chip, + handle_level_irq, "level"); + enable_r7780rp_irq(irq); } diff --git a/arch/sh/boards/renesas/r7780rp/setup.c b/arch/sh/boards/renesas/r7780rp/setup.c index 2faba66..0727ef9 100644 --- a/arch/sh/boards/renesas/r7780rp/setup.c +++ b/arch/sh/boards/renesas/r7780rp/setup.c @@ -1,10 +1,13 @@ /* * arch/sh/boards/renesas/r7780rp/setup.c * + * Renesas Solutions Highlander Support. + * * Copyright (C) 2002 Atom Create Engineering Co., Ltd. * Copyright (C) 2005 - 2007 Paul Mundt * - * Renesas Solutions Highlander R7780RP-1 Support. + * This contains support for the R7780RP-1, R7780MP, and R7785RP + * Highlander modules. * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -18,32 +21,6 @@ #include <asm/clock.h> #include <asm/io.h> -extern void init_r7780rp_IRQ(void); - -static struct resource m66596_usb_host_resources[] = { - [0] = { - .start = 0xa4800000, - .end = 0xa4ffffff, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = 6, /* irq number */ - .end = 6, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device m66596_usb_host_device = { - .name = "m66596-hcd", - .id = 0, - .dev = { - .dma_mask = NULL, /* don't use dma */ - .coherent_dma_mask = 0xffffffff, - }, - .num_resources = ARRAY_SIZE(m66596_usb_host_resources), - .resource = m66596_usb_host_resources, -}; - static struct resource cf_ide_resources[] = { [0] = { .start = PA_AREA5_IO + 0x1000, @@ -56,10 +33,10 @@ static struct resource cf_ide_resources[] = { .flags = IORESOURCE_MEM, }, [2] = { -#ifdef CONFIG_SH_R7780MP - .start = 1, -#else +#ifdef CONFIG_SH_R7780RP .start = 4, +#else + .start = 1, #endif .flags = IORESOURCE_IRQ, }, @@ -92,15 +69,18 @@ static struct resource heartbeat_resources[] = { static struct platform_device heartbeat_device = { .name = "heartbeat", .id = -1, + + /* R7785RP has a slightly more sensible FPGA.. */ +#ifndef CONFIG_SH_R7785RP .dev = { .platform_data = heartbeat_bit_pos, }, +#endif .num_resources = ARRAY_SIZE(heartbeat_resources), .resource = heartbeat_resources, }; static struct platform_device *r7780rp_devices[] __initdata = { - &m66596_usb_host_device, &cf_ide_device, &heartbeat_device, }; @@ -110,18 +90,19 @@ static int __init r7780rp_devices_setup(void) return platform_add_devices(r7780rp_devices, ARRAY_SIZE(r7780rp_devices)); } +device_initcall(r7780rp_devices_setup); /* * Platform specific clocks */ static void ivdr_clk_enable(struct clk *clk) { - ctrl_outw(ctrl_inw(PA_IVDRCTL) | (1 << 8), PA_IVDRCTL); + ctrl_outw(ctrl_inw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL); } static void ivdr_clk_disable(struct clk *clk) { - ctrl_outw(ctrl_inw(PA_IVDRCTL) & ~(1 << 8), PA_IVDRCTL); + ctrl_outw(ctrl_inw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL); } static struct clk_ops ivdr_clk_ops = { @@ -140,22 +121,22 @@ static struct clk *r7780rp_clocks[] = { static void r7780rp_power_off(void) { -#ifdef CONFIG_SH_R7780MP - ctrl_outw(0x0001, PA_POFF); -#endif + if (mach_is_r7780mp() || mach_is_r7785rp()) + ctrl_outw(0x0001, PA_POFF); } /* * Initialize the board */ -static void __init r7780rp_setup(char **cmdline_p) +static void __init highlander_setup(char **cmdline_p) { u16 ver = ctrl_inw(PA_VERREG); int i; - device_initcall(r7780rp_devices_setup); - - printk(KERN_INFO "Renesas Solutions Highlander R7780RP-1 support.\n"); + printk(KERN_INFO "Renesas Solutions Highlander %s support.\n", + mach_is_r7780rp() ? "R7780RP-1" : + mach_is_r7780mp() ? "R7780MP" : + "R7785RP"); printk(KERN_INFO "Board version: %d (revision %d), " "FPGA version: %d (revision %d)\n", @@ -173,9 +154,10 @@ static void __init r7780rp_setup(char **cmdline_p) } ctrl_outw(0x0000, PA_OBLED); /* Clear LED. */ -#ifndef CONFIG_SH_R7780MP - ctrl_outw(0x0001, PA_SDPOW); /* SD Power ON */ -#endif + + if (mach_is_r7780rp()) + ctrl_outw(0x0001, PA_SDPOW); /* SD Power ON */ + ctrl_outw(ctrl_inw(PA_IVDRCTL) | 0x01, PA_IVDRCTL); /* Si13112 */ pm_power_off = r7780rp_power_off; @@ -184,10 +166,10 @@ static void __init r7780rp_setup(char **cmdline_p) /* * The Machine Vector */ -struct sh_machine_vector mv_r7780rp __initmv = { - .mv_name = "Highlander R7780RP-1", - .mv_setup = r7780rp_setup, +struct sh_machine_vector mv_highlander __initmv = { + .mv_name = "Highlander", .mv_nr_irqs = 109, - .mv_init_irq = init_r7780rp_IRQ, + .mv_setup = highlander_setup, + .mv_init_irq = highlander_init_irq, }; -ALIAS_MV(r7780rp) +ALIAS_MV(highlander) diff --git a/arch/sh/boards/se/770x/io.c b/arch/sh/boards/se/770x/io.c index 9941949..c455047 100644 --- a/arch/sh/boards/se/770x/io.c +++ b/arch/sh/boards/se/770x/io.c @@ -27,6 +27,8 @@ int sh_pcic_io_dummy; static inline volatile __u16 * port2adr(unsigned int port) { + if (port & 0xff000000) + return ( volatile __u16 *) port; if (port >= 0x2000) return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000)); else if (port >= 0x1000) diff --git a/arch/sh/boards/se/770x/irq.c b/arch/sh/boards/se/770x/irq.c index 307ca5d..c8eccff 100644 --- a/arch/sh/boards/se/770x/irq.c +++ b/arch/sh/boards/se/770x/irq.c @@ -55,23 +55,34 @@ void make_se770x_irq(struct ipr_data *table, unsigned int nr_irqs) } static struct ipr_data se770x_ipr_map[] = { + /* + * Super I/O (Just mimic PC): + * 1: keyboard + * 3: serial 0 + * 4: serial 1 + * 5: printer + * 6: floppy + * 8: rtc + * 12: mouse + * 14: ide0 + */ #if defined(CONFIG_CPU_SUBTYPE_SH7705) /* This is default value */ - { 0xf-0x2, 0, 8, 0x2 , BCR_ILCRA}, - { 0xf-0xa, 0, 4, 0xa , BCR_ILCRA}, - { 0xf-0x5, 0, 0, 0x5 , BCR_ILCRB}, - { 0xf-0x8, 0, 4, 0x8 , BCR_ILCRC}, - { 0xf-0xc, 0, 0, 0xc , BCR_ILCRC}, - { 0xf-0xe, 0, 12, 0xe , BCR_ILCRD}, - { 0xf-0x3, 0, 4, 0x3 , BCR_ILCRD}, /* LAN */ - { 0xf-0xd, 0, 8, 0xd , BCR_ILCRE}, - { 0xf-0x9, 0, 4, 0x9 , BCR_ILCRE}, - { 0xf-0x1, 0, 0, 0x1 , BCR_ILCRE}, - { 0xf-0xf, 0, 12, 0xf , BCR_ILCRF}, - { 0xf-0xb, 0, 4, 0xb , BCR_ILCRF}, - { 0xf-0x7, 0, 12, 0x7 , BCR_ILCRG}, - { 0xf-0x6, 0, 8, 0x6 , BCR_ILCRG}, - { 0xf-0x4, 0, 4, 0x4 , BCR_ILCRG}, + { 13, 0, 8, 0x0f-13 ,BCR_ILCRA}, + { 5 , 0, 4, 0x0f- 5 ,BCR_ILCRA}, + { 10, 0, 0, 0x0f-10, BCR_ILCRB}, + { 7 , 0, 4, 0x0f- 7, BCR_ILCRC}, + { 3 , 0, 0, 0x0f- 3, BCR_ILCRC}, + { 1 , 0, 12, 0x0f- 1, BCR_ILCRD}, + { 12, 0, 4, 0x0f-12, BCR_ILCRD}, /* LAN */ + { 2 , 0, 8, 0x0f- 2, BCR_ILCRE}, /* PCIRQ2 */ + { 6 , 0, 4, 0x0f- 6, BCR_ILCRE}, /* PCIRQ1 */ + { 14, 0, 0, 0x0f-14, BCR_ILCRE}, /* PCIRQ0 */ + { 0 , 0, 12, 0x0f , BCR_ILCRF}, + { 4 , 0, 4, 0x0f- 4, BCR_ILCRF}, + { 8 , 0, 12, 0x0f- 8, BCR_ILCRG}, + { 9 , 0, 8, 0x0f- 9, BCR_ILCRG}, + { 11, 0, 4, 0x0f-11, BCR_ILCRG}, #else { 14, 0, 8, 0x0f-14 ,BCR_ILCRA}, { 12, 0, 4, 0x0f-12 ,BCR_ILCRA}, @@ -81,8 +92,10 @@ static struct ipr_data se770x_ipr_map[] = { { 4, 0, 4, 0x0f- 4 ,BCR_ILCRC}, { 3, 0, 0, 0x0f- 3 ,BCR_ILCRC}, { 1, 0, 12, 0x0f- 1 ,BCR_ILCRD}, +#if defined(CONFIG_STNIC) /* ST NIC */ { 10, 0, 4, 0x0f-10 ,BCR_ILCRD}, /* LAN */ +#endif /* MRSHPC IRQs setting */ { 0, 0, 12, 0x0f- 0 ,BCR_ILCRE}, /* PCIRQ3 */ { 11, 0, 8, 0x0f-11 ,BCR_ILCRE}, /* PCIRQ2 */ @@ -100,18 +113,6 @@ static struct ipr_data se770x_ipr_map[] = { */ void __init init_se_IRQ(void) { - /* - * Super I/O (Just mimic PC): - * 1: keyboard - * 3: serial 0 - * 4: serial 1 - * 5: printer - * 6: floppy - * 8: rtc - * 12: mouse - * 14: ide0 - */ -#if defined(CONFIG_CPU_SUBTYPE_SH7705) /* Disable all interrupts */ ctrl_outw(0, BCR_ILCRA); ctrl_outw(0, BCR_ILCRB); @@ -120,6 +121,6 @@ void __init init_se_IRQ(void) ctrl_outw(0, BCR_ILCRE); ctrl_outw(0, BCR_ILCRF); ctrl_outw(0, BCR_ILCRG); -#endif + make_se770x_irq(se770x_ipr_map, ARRAY_SIZE(se770x_ipr_map)); } diff --git a/arch/sh/boards/se/770x/setup.c b/arch/sh/boards/se/770x/setup.c index 45cbc36..17a2631 100644 --- a/arch/sh/boards/se/770x/setup.c +++ b/arch/sh/boards/se/770x/setup.c @@ -63,6 +63,31 @@ static void __init smsc_setup(char **cmdline_p) outb_p(CONFIG_EXIT, CONFIG_PORT); } + +static struct resource cf_ide_resources[] = { + [0] = { + .start = PA_MRSHPC_IO + 0x1f0, + .end = PA_MRSHPC_IO + 0x1f0 + 8, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = PA_MRSHPC_IO + 0x1f0 + 0x206, + .end = PA_MRSHPC_IO + 0x1f0 +8 + 0x206 + 8, + .flags = IORESOURCE_MEM, + }, + [2] = { + .start = IRQ_CFCARD, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device cf_ide_device = { + .name = "pata_platform", + .id = -1, + .num_resources = ARRAY_SIZE(cf_ide_resources), + .resource = cf_ide_resources, +}; + static unsigned char heartbeat_bit_pos[] = { 8, 9, 10, 11, 12, 13, 14, 15 }; static struct resource heartbeat_resources[] = { @@ -85,13 +110,14 @@ static struct platform_device heartbeat_device = { static struct platform_device *se_devices[] __initdata = { &heartbeat_device, + &cf_ide_device, }; static int __init se_devices_setup(void) { return platform_add_devices(se_devices, ARRAY_SIZE(se_devices)); } -__initcall(se_devices_setup); +device_initcall(se_devices_setup); /* * The Machine Vector @@ -107,6 +133,8 @@ struct sh_machine_vector mv_se __initmv = { .mv_nr_irqs = 61, #elif defined(CONFIG_CPU_SUBTYPE_SH7705) .mv_nr_irqs = 86, +#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712) + .mv_nr_irqs = 104, #endif .mv_inb = se_inb, diff --git a/arch/sh/boards/se/7722/Makefile b/arch/sh/boards/se/7722/Makefile new file mode 100644 index 0000000..8694373 --- /dev/null +++ b/arch/sh/boards/se/7722/Makefile @@ -0,0 +1,10 @@ +# +# Makefile for the HITACHI UL SolutionEngine 7722 specific parts of the kernel +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. +# +# + +obj-y := setup.o irq.o diff --git a/arch/sh/boards/se/7722/irq.c b/arch/sh/boards/se/7722/irq.c new file mode 100644 index 0000000..099e5de --- /dev/null +++ b/arch/sh/boards/se/7722/irq.c @@ -0,0 +1,101 @@ +/* + * linux/arch/sh/boards/se/7722/irq.c + * + * Copyright (C) 2007 Nobuhiro Iwamatsu + * + * Hitachi UL SolutionEngine 7722 Support. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <asm/irq.h> +#include <asm/io.h> +#include <asm/se7722.h> + +#define INTC_INTMSK0 0xFFD00044 +#define INTC_INTMSKCLR0 0xFFD00064 + +static void disable_se7722_irq(unsigned int irq) +{ + struct ipr_data *p = get_irq_chip_data(irq); + ctrl_outw( ctrl_inw( p->addr ) | p->priority , p->addr ); +} + +static void enable_se7722_irq(unsigned int irq) +{ + struct ipr_data *p = get_irq_chip_data(irq); + ctrl_outw( ctrl_inw( p->addr ) & ~p->priority , p->addr ); +} + +static struct irq_chip se7722_irq_chip __read_mostly = { + .name = "SE7722", + .mask = disable_se7722_irq, + .unmask = enable_se7722_irq, + .mask_ack = disable_se7722_irq, +}; + +static struct ipr_data ipr_irq_table[] = { + /* irq ,idx,sft, priority , addr */ + { MRSHPC_IRQ0 , 0 , 0 , MRSHPC_BIT0 , IRQ01_MASK } , + { MRSHPC_IRQ1 , 0 , 0 , MRSHPC_BIT1 , IRQ01_MASK } , + { MRSHPC_IRQ2 , 0 , 0 , MRSHPC_BIT2 , IRQ01_MASK } , + { MRSHPC_IRQ3 , 0 , 0 , MRSHPC_BIT3 , IRQ01_MASK } , + { SMC_IRQ , 0 , 0 , SMC_BIT , IRQ01_MASK } , + { EXT_IRQ , 0 , 0 , EXT_BIT , IRQ01_MASK } , +}; + +int se7722_irq_demux(int irq) +{ + + if ((irq == IRQ0_IRQ)||(irq == IRQ1_IRQ)) { + volatile unsigned short intv = + *(volatile unsigned short *)IRQ01_STS; + if (irq == IRQ0_IRQ){ + if(intv & SMC_BIT ) { + return SMC_IRQ; + } else if(intv & USB_BIT) { + return USB_IRQ; + } else { + printk("intv =%04x\n", intv); + return SMC_IRQ; + } + } else if(irq == IRQ1_IRQ){ + if(intv & MRSHPC_BIT0) { + return MRSHPC_IRQ0; + } else if(intv & MRSHPC_BIT1) { + return MRSHPC_IRQ1; + } else if(intv & MRSHPC_BIT2) { + return MRSHPC_IRQ2; + } else if(intv & MRSHPC_BIT3) { + return MRSHPC_IRQ3; + } else { + printk("BIT_EXTENTION =%04x\n", intv); + return EXT_IRQ; + } + } + } + return irq; + +} +/* + * Initialize IRQ setting + */ +void __init init_se7722_IRQ(void) +{ + int i = 0; + ctrl_outw(0x2000, 0xb03fffec); /* mrshpc irq enable */ + ctrl_outl((3 << ((7 - 0) * 4))|(3 << ((7 - 1) * 4)), INTC_INTPRI0); /* irq0 pri=3,irq1,pri=3 */ + ctrl_outw((2 << ((7 - 0) * 2))|(2 << ((7 - 1) * 2)), INTC_ICR1); /* irq0,1 low-level irq */ + + for (i = 0; i < ARRAY_SIZE(ipr_irq_table); i++) { + disable_irq_nosync(ipr_irq_table[i].irq); + set_irq_chip_and_handler_name( ipr_irq_table[i].irq, &se7722_irq_chip, + handle_level_irq, "level"); + set_irq_chip_data( ipr_irq_table[i].irq, &ipr_irq_table[i] ); + disable_se7722_irq(ipr_irq_table[i].irq); + } +} diff --git a/arch/sh/boards/se/7722/setup.c b/arch/sh/boards/se/7722/setup.c new file mode 100644 index 0000000..636ca6c --- /dev/null +++ b/arch/sh/boards/se/7722/setup.c @@ -0,0 +1,148 @@ +/* + * linux/arch/sh/boards/se/7722/setup.c + * + * Copyright (C) 2007 Nobuhiro Iwamatsu + * + * Hitachi UL SolutionEngine 7722 Support. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + */ +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/pata_platform.h> +#include <asm/machvec.h> +#include <asm/se7722.h> +#include <asm/io.h> + +/* Heartbeat */ +static unsigned char heartbeat_bit_pos[] = { 0, 1, 2, 3, 4, 5, 6, 7 }; + +static struct resource heartbeat_resources[] = { + [0] = { + .start = PA_LED, + .end = PA_LED + ARRAY_SIZE(heartbeat_bit_pos) - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device heartbeat_device = { + .name = "heartbeat", + .id = -1, + .dev = { + .platform_data = heartbeat_bit_pos, + }, + .num_resources = ARRAY_SIZE(heartbeat_resources), + .resource = heartbeat_resources, +}; + +/* SMC91x */ +static struct resource smc91x_eth_resources[] = { + [0] = { + .name = "smc91x-regs" , + .start = PA_LAN + 0x300, + .end = PA_LAN + 0x300 + 0x10 , + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = SMC_IRQ, + .end = SMC_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device smc91x_eth_device = { + .name = "smc91x", + .id = 0, + .dev = { + .dma_mask = NULL, /* don't use dma */ + .coherent_dma_mask = 0xffffffff, + }, + .num_resources = ARRAY_SIZE(smc91x_eth_resources), + .resource = smc91x_eth_resources, +}; + +static struct resource cf_ide_resources[] = { + [0] = { + .start = PA_MRSHPC_IO + 0x1f0, + .end = PA_MRSHPC_IO + 0x1f0 + 8 , + .flags = IORESOURCE_IO, + }, + [1] = { + .start = PA_MRSHPC_IO + 0x1f0 + 0x206, + .end = PA_MRSHPC_IO + 0x1f0 +8 + 0x206 + 8, + .flags = IORESOURCE_IO, + }, + [2] = { + .start = MRSHPC_IRQ0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device cf_ide_device = { + .name = "pata_platform", + .id = -1, + .num_resources = ARRAY_SIZE(cf_ide_resources), + .resource = cf_ide_resources, +}; + +static struct platform_device *se7722_devices[] __initdata = { + &heartbeat_device, + &smc91x_eth_device, + &cf_ide_device, +}; + +static int __init se7722_devices_setup(void) +{ + return platform_add_devices(se7722_devices, + ARRAY_SIZE(se7722_devices)); +} +device_initcall(se7722_devices_setup); + +static void __init se7722_setup(char **cmdline_p) +{ + ctrl_outw(0x010D, FPGA_OUT); /* FPGA */ + + ctrl_outl(0x00051001, MSTPCR0); + ctrl_outl(0x00000000, MSTPCR1); + /* KEYSC, VOU, BEU, CEU, VEU, VPU, LCDC */ + ctrl_outl(0xffffbfC0, MSTPCR2); + + ctrl_outw(0x0000, PORT_PECR); /* PORT E 1 = IRQ5 ,E 0 = BS */ + ctrl_outw(0x1000, PORT_PJCR); /* PORT J 1 = IRQ1,J 0 =IRQ0 */ + + /* LCDC I/O */ + ctrl_outw(0x0020, PORT_PSELD); + + /* SIOF1*/ + ctrl_outw(0x0003, PORT_PSELB); + ctrl_outw(0xe000, PORT_PSELC); + ctrl_outw(0x0000, PORT_PKCR); + + /* LCDC */ + ctrl_outw(0x4020, PORT_PHCR); + ctrl_outw(0x0000, PORT_PLCR); + ctrl_outw(0x0000, PORT_PMCR); + ctrl_outw(0x0002, PORT_PRCR); + ctrl_outw(0x0000, PORT_PXCR); /* LCDC,CS6A */ + + /* KEYSC */ + ctrl_outw(0x0A10, PORT_PSELA); /* BS,SHHID2 */ + ctrl_outw(0x0000, PORT_PYCR); + ctrl_outw(0x0000, PORT_PZCR); +} + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_se7722 __initmv = { + .mv_name = "Solution Engine 7722" , + .mv_setup = se7722_setup , + .mv_nr_irqs = 109 , + .mv_init_irq = init_se7722_IRQ, + .mv_irq_demux = se7722_irq_demux, + +}; +ALIAS_MV(se7722) diff --git a/arch/sh/boards/se/7751/setup.c b/arch/sh/boards/se/7751/setup.c index e3feae6..770defe 100644 --- a/arch/sh/boards/se/7751/setup.c +++ b/arch/sh/boards/se/7751/setup.c @@ -14,153 +14,6 @@ #include <asm/se7751.h> #include <asm/io.h> -void init_7751se_IRQ(void); - -#ifdef CONFIG_SH_KGDB -#include <asm/kgdb.h> -static int kgdb_uart_setup(void); -static struct kgdb_sermap kgdb_uart_sermap = -{ "ttyS", 0, kgdb_uart_setup, NULL }; -#endif - -/* - * Initialize the board - */ -static void __init sh7751se_setup(char **cmdline_p) -{ - /* Call init_smsc() replacement to set up SuperIO. */ - /* XXX: RTC setting comes here */ -#ifdef CONFIG_SH_KGDB - kgdb_register_sermap(&kgdb_uart_sermap); -#endif -} - -/********************************************************************* - * Currently a hack (e.g. does not interact well w/serial.c, lots of * - * hardcoded stuff) but may be useful if SCI/F needs debugging. * - * Mostly copied from x86 code (see files asm-i386/kgdb_local.h and * - * arch/i386/lib/kgdb_serial.c). * - *********************************************************************/ - -#ifdef CONFIG_SH_KGDB -#include <linux/types.h> -#include <linux/serial.h> -#include <linux/serialP.h> -#include <linux/serial_reg.h> - -#define COM1_PORT 0x3f8 /* Base I/O address */ -#define COM1_IRQ 4 /* IRQ not used yet */ -#define COM2_PORT 0x2f8 /* Base I/O address */ -#define COM2_IRQ 3 /* IRQ not used yet */ - -#define SB_CLOCK 1843200 /* Serial baud clock */ -#define SB_BASE (SB_CLOCK/16) -#define SB_MCR UART_MCR_OUT2 | UART_MCR_DTR | UART_MCR_RTS - -struct uart_port { - int base; -}; -#define UART_NPORTS 2 -struct uart_port uart_ports[] = { - { COM1_PORT }, - { COM2_PORT }, -}; -struct uart_port *kgdb_uart_port; - -#define UART_IN(reg) inb_p(kgdb_uart_port->base + reg) -#define UART_OUT(reg,v) outb_p((v), kgdb_uart_port->base + reg) - -/* Basic read/write functions for the UART */ -#define UART_LSR_RXCERR (UART_LSR_BI | UART_LSR_FE | UART_LSR_PE) -static int kgdb_uart_getchar(void) -{ - int lsr; - int c = -1; - - while (c == -1) { - lsr = UART_IN(UART_LSR); - if (lsr & UART_LSR_DR) - c = UART_IN(UART_RX); - if ((lsr & UART_LSR_RXCERR)) - c = -1; - } - return c; -} - -static void kgdb_uart_putchar(int c) -{ - while ((UART_IN(UART_LSR) & UART_LSR_THRE) == 0) - ; - UART_OUT(UART_TX, c); -} - -/* - * Initialize UART to configured/requested values. - * (But we don't interrupts yet, or interact w/serial.c) - */ -static int kgdb_uart_setup(void) -{ - int port; - int lcr = 0; - int bdiv = 0; - - if (kgdb_portnum >= UART_NPORTS) { - KGDB_PRINTK("uart port %d invalid.\n", kgdb_portnum); - return -1; - } - - kgdb_uart_port = &uart_ports[kgdb_portnum]; - - /* Init sequence from gdb_hook_interrupt */ - UART_IN(UART_RX); - UART_OUT(UART_IER, 0); - - UART_IN(UART_RX); /* Serial driver comments say */ - UART_IN(UART_IIR); /* this clears interrupt regs */ - UART_IN(UART_MSR); - - /* Figure basic LCR values */ - switch (kgdb_bits) { - case '7': - lcr |= UART_LCR_WLEN7; - break; - default: case '8': - lcr |= UART_LCR_WLEN8; - break; - } - switch (kgdb_parity) { - case 'O': - lcr |= UART_LCR_PARITY; - break; - case 'E': - lcr |= (UART_LCR_PARITY | UART_LCR_EPAR); - break; - default: break; - } - - /* Figure the baud rate divisor */ - bdiv = (SB_BASE/kgdb_baud); - - /* Set the baud rate and LCR values */ - UART_OUT(UART_LCR, (lcr | UART_LCR_DLAB)); - UART_OUT(UART_DLL, (bdiv & 0xff)); - UART_OUT(UART_DLM, ((bdiv >> 8) & 0xff)); - UART_OUT(UART_LCR, lcr); - - /* Set the MCR */ - UART_OUT(UART_MCR, SB_MCR); - - /* Turn off FIFOs for now */ - UART_OUT(UART_FCR, 0); - - /* Setup complete: initialize function pointers */ - kgdb_getchar = kgdb_uart_getchar; - kgdb_putchar = kgdb_uart_putchar; - - return 0; -} -#endif /* CONFIG_SH_KGDB */ - static unsigned char heartbeat_bit_pos[] = { 8, 9, 10, 11, 12, 13, 14, 15 }; static struct resource heartbeat_resources[] = { @@ -197,7 +50,6 @@ __initcall(se7751_devices_setup); */ struct sh_machine_vector mv_7751se __initmv = { .mv_name = "7751 SolutionEngine", - .mv_setup = sh7751se_setup, .mv_nr_irqs = 72, .mv_inb = sh7751se_inb, diff --git a/arch/sh/boards/se/7780/Makefile b/arch/sh/boards/se/7780/Makefile new file mode 100644 index 0000000..6b88ada --- /dev/null +++ b/arch/sh/boards/se/7780/Makefile @@ -0,0 +1,10 @@ +# +# Makefile for the HITACHI UL SolutionEngine 7780 specific parts of the kernel +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. +# +# + +obj-y := setup.o irq.o diff --git a/arch/sh/boards/se/7780/irq.c b/arch/sh/boards/se/7780/irq.c new file mode 100644 index 0000000..3d0625c --- /dev/null +++ b/arch/sh/boards/se/7780/irq.c @@ -0,0 +1,89 @@ +/* + * linux/arch/sh/boards/se/7780/irq.c + * + * Copyright (C) 2006,2007 Nobuhiro Iwamatsu + * + * Hitachi UL SolutionEngine 7780 Support. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <asm/irq.h> +#include <asm/io.h> +#include <asm/se7780.h> + +#define INTC_INTMSK0 0xFFD00044 +#define INTC_INTMSKCLR0 0xFFD00064 + +static void disable_se7780_irq(unsigned int irq) +{ + struct intc2_data *p = get_irq_chip_data(irq); + ctrl_outl(1 << p->msk_shift, INTC_INTMSK0 + p->msk_offset); +} + +static void enable_se7780_irq(unsigned int irq) +{ + struct intc2_data *p = get_irq_chip_data(irq); + ctrl_outl(1 << p->msk_shift, INTC_INTMSKCLR0 + p->msk_offset); +} + +static struct irq_chip se7780_irq_chip __read_mostly = { + .name = "SE7780", + .mask = disable_se7780_irq, + .unmask = enable_se7780_irq, + .mask_ack = disable_se7780_irq, +}; + +static struct intc2_data intc2_irq_table[] = { + { 2, 0, 31, 0, 31, 3 }, /* daughter board EXTINT1 */ + { 4, 0, 30, 0, 30, 3 }, /* daughter board EXTINT2 */ + { 6, 0, 29, 0, 29, 3 }, /* daughter board EXTINT3 */ + { 8, 0, 28, 0, 28, 3 }, /* SMC 91C111 (LAN) */ + { 10, 0, 27, 0, 27, 3 }, /* daughter board EXTINT4 */ + { 4, 0, 30, 0, 30, 3 }, /* daughter board EXTINT5 */ + { 2, 0, 31, 0, 31, 3 }, /* daughter board EXTINT6 */ + { 2, 0, 31, 0, 31, 3 }, /* daughter board EXTINT7 */ + { 2, 0, 31, 0, 31, 3 }, /* daughter board EXTINT8 */ + { 0 , 0, 24, 0, 24, 3 }, /* SM501 */ +}; + +/* + * Initialize IRQ setting + */ +void __init init_se7780_IRQ(void) +{ + int i ; + + /* enable all interrupt at FPGA */ + ctrl_outw(0, FPGA_INTMSK1); + /* mask SM501 interrupt */ + ctrl_outw((ctrl_inw(FPGA_INTMSK1) | 0x0002), FPGA_INTMSK1); + /* enable all interrupt at FPGA */ + ctrl_outw(0, FPGA_INTMSK2); + + /* set FPGA INTSEL register */ + /* FPGA + 0x06 */ + ctrl_outw( ((IRQPIN_SM501 << IRQPOS_SM501) | + (IRQPIN_SMC91CX << IRQPOS_SMC91CX)), FPGA_INTSEL1); + + /* FPGA + 0x08 */ + ctrl_outw(((IRQPIN_EXTINT4 << IRQPOS_EXTINT4) | + (IRQPIN_EXTINT3 << IRQPOS_EXTINT3) | + (IRQPIN_EXTINT2 << IRQPOS_EXTINT2) | + (IRQPIN_EXTINT1 << IRQPOS_EXTINT1)), FPGA_INTSEL2); + + /* FPGA + 0x0A */ + ctrl_outw((IRQPIN_PCCPW << IRQPOS_PCCPW), FPGA_INTSEL3); + + for (i = 0; i < ARRAY_SIZE(intc2_irq_table); i++) { + disable_irq_nosync(intc2_irq_table[i].irq); + set_irq_chip_and_handler_name( intc2_irq_table[i].irq, &se7780_irq_chip, + handle_level_irq, "level"); + set_irq_chip_data( intc2_irq_table[i].irq, &intc2_irq_table[i] ); + disable_se7780_irq(intc2_irq_table[i].irq); + } +} diff --git a/arch/sh/boards/se/7780/setup.c b/arch/sh/boards/se/7780/setup.c new file mode 100644 index 0000000..df7d08a --- /dev/null +++ b/arch/sh/boards/se/7780/setup.c @@ -0,0 +1,122 @@ +/* + * linux/arch/sh/boards/se/7780/setup.c + * + * Copyright (C) 2006,2007 Nobuhiro Iwamatsu + * + * Hitachi UL SolutionEngine 7780 Support. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <linux/platform_device.h> +#include <asm/machvec.h> +#include <asm/se7780.h> +#include <asm/io.h> + +/* Heartbeat */ +static unsigned char heartbeat_bit_pos[] = { 0, 1, 2, 3, 4, 5, 6, 7 }; + +static struct resource heartbeat_resources[] = { + [0] = { + .start = PA_LED, + .end = PA_LED + ARRAY_SIZE(heartbeat_bit_pos) - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device heartbeat_device = { + .name = "heartbeat", + .id = -1, + .dev = { + .platform_data = heartbeat_bit_pos, + }, + .num_resources = ARRAY_SIZE(heartbeat_resources), + .resource = heartbeat_resources, +}; + +/* SMC91x */ +static struct resource smc91x_eth_resources[] = { + [0] = { + .name = "smc91x-regs" , + .start = PA_LAN + 0x300, + .end = PA_LAN + 0x300 + 0x10 , + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = SMC_IRQ, + .end = SMC_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device smc91x_eth_device = { + .name = "smc91x", + .id = 0, + .dev = { + .dma_mask = NULL, /* don't use dma */ + .coherent_dma_mask = 0xffffffff, + }, + .num_resources = ARRAY_SIZE(smc91x_eth_resources), + .resource = smc91x_eth_resources, +}; + +static struct platform_device *se7780_devices[] __initdata = { + &heartbeat_device, + &smc91x_eth_device, +}; + +static int __init se7780_devices_setup(void) +{ + return platform_add_devices(se7780_devices, + ARRAY_SIZE(se7780_devices)); +} +device_initcall(se7780_devices_setup); + +#define GPIO_PHCR 0xFFEA000E +#define GPIO_PMSELR 0xFFEA0080 +#define GPIO_PECR 0xFFEA0008 + +static void __init se7780_setup(char **cmdline_p) +{ + /* "SH-Linux" on LED Display */ + ctrl_outw( 'S' , PA_LED_DISP + (DISP_SEL0_ADDR << 1) ); + ctrl_outw( 'H' , PA_LED_DISP + (DISP_SEL1_ADDR << 1) ); + ctrl_outw( '-' , PA_LED_DISP + (DISP_SEL2_ADDR << 1) ); + ctrl_outw( 'L' , PA_LED_DISP + (DISP_SEL3_ADDR << 1) ); + ctrl_outw( 'i' , PA_LED_DISP + (DISP_SEL4_ADDR << 1) ); + ctrl_outw( 'n' , PA_LED_DISP + (DISP_SEL5_ADDR << 1) ); + ctrl_outw( 'u' , PA_LED_DISP + (DISP_SEL6_ADDR << 1) ); + ctrl_outw( 'x' , PA_LED_DISP + (DISP_SEL7_ADDR << 1) ); + + printk(KERN_INFO "Hitachi UL Solutions Engine 7780SE03 support.\n"); + + /* + * PCI REQ/GNT setting + * REQ0/GNT0 -> USB + * REQ1/GNT1 -> PC Card + * REQ2/GNT2 -> Serial ATA + * REQ3/GNT3 -> PCI slot + */ + ctrl_outw(0x0213, FPGA_REQSEL); + + /* GPIO setting */ + ctrl_outw(0x0000, GPIO_PECR); + ctrl_outw(ctrl_inw(GPIO_PHCR)&0xfff3, GPIO_PHCR); + ctrl_outw(0x0c00, GPIO_PMSELR); + + /* iVDR Power ON */ + ctrl_outw(0x0001, FPGA_IVDRPW); +} + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_se7780 __initmv = { + .mv_name = "Solution Engine 7780" , + .mv_setup = se7780_setup , + .mv_nr_irqs = 111 , + .mv_init_irq = init_se7780_IRQ, +}; +ALIAS_MV(se7780) diff --git a/arch/sh/configs/lboxre2_defconfig b/arch/sh/configs/lboxre2_defconfig new file mode 100644 index 0000000..be86414 --- /dev/null +++ b/arch/sh/configs/lboxre2_defconfig @@ -0,0 +1,1271 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.21-rc4 +# Sat Mar 24 22:04:27 2007 +# +CONFIG_SUPERH=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_BUG=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +# CONFIG_GENERIC_TIME is not set +CONFIG_STACKTRACE_SUPPORT=y +CONFIG_LOCKDEP_SUPPORT=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +# CONFIG_IPC_NS is not set +CONFIG_SYSVIPC_SYSCTL=y +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set +# CONFIG_UTS_NS is not set +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +CONFIG_SYSFS_DEPRECATED=y +# CONFIG_RELAY is not set +# CONFIG_BLK_DEV_INITRD is not set +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_SYSCTL=y +CONFIG_EMBEDDED=y +CONFIG_UID16=y +# CONFIG_SYSCTL_SYSCALL is not set +CONFIG_KALLSYMS=y +CONFIG_KALLSYMS_EXTRA_PASS=y +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_EPOLL=y +CONFIG_SHMEM=y +CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y +CONFIG_RT_MUTEXES=y +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 +# CONFIG_SLOB is not set + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# Block layer +# +CONFIG_BLOCK=y +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +CONFIG_IOSCHED_DEADLINE=y +CONFIG_IOSCHED_CFQ=y +CONFIG_DEFAULT_AS=y +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="anticipatory" + +# +# System type +# +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_7343_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_7710VOIPGW is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_HIGHLANDER is not set +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_TITAN is not set +# CONFIG_SH_SHMIN is not set +# CONFIG_SH_7206_SOLUTION_ENGINE is not set +# CONFIG_SH_7619_SOLUTION_ENGINE is not set +CONFIG_SH_LBOX_RE2=y +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH4=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set +# CONFIG_CPU_SUBTYPE_SH7619 is not set + +# +# SH-2A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7206 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7706 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set +# CONFIG_CPU_SUBTYPE_SH7710 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +CONFIG_CPU_SUBTYPE_SH7751=y +CONFIG_CPU_SUBTYPE_SH7751R=y +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7770 is not set +# CONFIG_CPU_SUBTYPE_SH7780 is not set +# CONFIG_CPU_SUBTYPE_SH7785 is not set + +# +# SH4AL-DSP Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7343 is not set +# CONFIG_CPU_SUBTYPE_SH7722 is not set + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_PAGE_OFFSET=0x80000000 +CONFIG_MEMORY_START=0x0c000000 +CONFIG_MEMORY_SIZE=0x04000000 +CONFIG_VSYSCALL=y +CONFIG_PAGE_SIZE_4KB=y +# CONFIG_PAGE_SIZE_8KB is not set +# CONFIG_PAGE_SIZE_64KB is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 +# CONFIG_RESOURCES_64BIT is not set +CONFIG_ZONE_DMA_FLAG=0 + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +# CONFIG_CPU_BIG_ENDIAN is not set +CONFIG_SH_FPU=y +# CONFIG_SH_DSP is not set +# CONFIG_SH_STORE_QUEUES is not set +CONFIG_CPU_HAS_INTEVT=y +CONFIG_CPU_HAS_IPR_IRQ=y +CONFIG_CPU_HAS_SR_RB=y +CONFIG_CPU_HAS_PTEA=y + +# +# Timer and clock configuration +# +CONFIG_SH_TMU=y +CONFIG_SH_TIMER_IRQ=16 +# CONFIG_NO_IDLE_HZ is not set +CONFIG_SH_PCLK_FREQ=40000000 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +# CONFIG_SH_DMA is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set + +# +# Additional SuperH Device Drivers +# +# CONFIG_HEARTBEAT is not set +# CONFIG_PUSH_SWITCH is not set + +# +# Kernel features +# +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y +# CONFIG_HZ_300 is not set +# CONFIG_HZ_1000 is not set +CONFIG_HZ=250 +CONFIG_KEXEC=y +# CONFIG_SMP is not set +CONFIG_PREEMPT_NONE=y +# CONFIG_PREEMPT_VOLUNTARY is not set +# CONFIG_PREEMPT is not set + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00800000 +# CONFIG_UBC_WAKEUP is not set +CONFIG_CMDLINE_BOOL=y +CONFIG_CMDLINE="console=ttySC1,115200 root=/dev/sda1" + +# +# Bus options +# +CONFIG_ISA=y +CONFIG_PCI=y +CONFIG_SH_PCIDMA_NONCOHERENT=y +CONFIG_PCI_AUTO=y +CONFIG_PCI_AUTO_UPDATE_RESOURCES=y + +# +# PCCARD (PCMCIA/CardBus) support +# +CONFIG_PCCARD=y +CONFIG_PCMCIA_DEBUG=y +CONFIG_PCMCIA=y +CONFIG_PCMCIA_LOAD_CIS=y +CONFIG_PCMCIA_IOCTL=y +CONFIG_CARDBUS=y + +# +# PC-card bridges +# +CONFIG_YENTA=y +CONFIG_YENTA_O2=y +# CONFIG_YENTA_RICOH is not set +# CONFIG_YENTA_TI is not set +# CONFIG_YENTA_TOSHIBA is not set +# CONFIG_PD6729 is not set +# CONFIG_I82092 is not set +# CONFIG_I82365 is not set +# CONFIG_TCIC is not set +CONFIG_PCMCIA_PROBE=y +CONFIG_PCCARD_NONSTATIC=y + +# +# PCI Hotplug Support +# +# CONFIG_HOTPLUG_PCI is not set + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options (EXPERIMENTAL) +# +# CONFIG_PM is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set +# CONFIG_XFRM_SUB_POLICY is not set +# CONFIG_XFRM_MIGRATE is not set +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_ASK_IP_FIB_HASH=y +# CONFIG_IP_FIB_TRIE is not set +CONFIG_IP_FIB_HASH=y +# CONFIG_IP_MULTIPLE_TABLES is not set +# CONFIG_IP_ROUTE_MULTIPATH is not set +# CONFIG_IP_ROUTE_VERBOSE is not set +CONFIG_IP_PNP=y +# CONFIG_IP_PNP_DHCP is not set +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +# CONFIG_SYN_COOKIES is not set +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_INET_XFRM_MODE_BEET=y +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_TCP_MD5SIG is not set + +# +# IP: Virtual Server Configuration +# +# CONFIG_IP_VS is not set +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set +CONFIG_NETFILTER=y +# CONFIG_NETFILTER_DEBUG is not set + +# +# Core Netfilter Configuration +# +# CONFIG_NETFILTER_NETLINK is not set +# CONFIG_NF_CONNTRACK_ENABLED is not set +# CONFIG_NETFILTER_XTABLES is not set + +# +# IP: Netfilter Configuration +# +# CONFIG_IP_NF_QUEUE is not set +# CONFIG_IP_NF_IPTABLES is not set +# CONFIG_IP_NF_ARPTABLES is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=y +# CONFIG_SYS_HYPERVISOR is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +# CONFIG_MTD is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# +# CONFIG_PNP is not set +# CONFIG_PNPACPI is not set + +# +# Block devices +# +# CONFIG_BLK_CPQ_DA is not set +# CONFIG_BLK_CPQ_CISS_DA is not set +# CONFIG_BLK_DEV_DAC960 is not set +# CONFIG_BLK_DEV_UMEM is not set +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=y +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_SX8 is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# Misc devices +# +# CONFIG_SGI_IOC4 is not set +# CONFIG_TIFM_CORE is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=y +# CONFIG_SCSI_TGT is not set +# CONFIG_SCSI_NETLINK is not set +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=y +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +# CONFIG_BLK_DEV_SR is not set +# CONFIG_CHR_DEV_SG is not set +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set +# CONFIG_SCSI_SCAN_ASYNC is not set + +# +# SCSI Transports +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set +# CONFIG_SCSI_SAS_LIBSAS is not set + +# +# SCSI low-level drivers +# +# CONFIG_ISCSI_TCP is not set +# CONFIG_BLK_DEV_3W_XXXX_RAID is not set +# CONFIG_SCSI_3W_9XXX is not set +# CONFIG_SCSI_ACARD is not set +# CONFIG_SCSI_AHA152X is not set +# CONFIG_SCSI_AACRAID is not set +# CONFIG_SCSI_AIC7XXX is not set +# CONFIG_SCSI_AIC7XXX_OLD is not set +# CONFIG_SCSI_AIC79XX is not set +# CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_DPT_I2O is not set +# CONFIG_SCSI_IN2000 is not set +# CONFIG_SCSI_ARCMSR is not set +# CONFIG_MEGARAID_NEWGEN is not set +# CONFIG_MEGARAID_LEGACY is not set +# CONFIG_MEGARAID_SAS is not set +# CONFIG_SCSI_HPTIOP is not set +# CONFIG_SCSI_DMX3191D is not set +# CONFIG_SCSI_DTC3280 is not set +# CONFIG_SCSI_FUTURE_DOMAIN is not set +# CONFIG_SCSI_GENERIC_NCR5380 is not set +# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set +# CONFIG_SCSI_IPS is not set +# CONFIG_SCSI_INITIO is not set +# CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_NCR53C406A is not set +# CONFIG_SCSI_STEX is not set +# CONFIG_SCSI_SYM53C8XX_2 is not set +# CONFIG_SCSI_IPR is not set +# CONFIG_SCSI_PAS16 is not set +# CONFIG_SCSI_PSI240I is not set +# CONFIG_SCSI_QLOGIC_FAS is not set +# CONFIG_SCSI_QLOGIC_1280 is not set +# CONFIG_SCSI_QLA_FC is not set +# CONFIG_SCSI_QLA_ISCSI is not set +# CONFIG_SCSI_LPFC is not set +# CONFIG_SCSI_SYM53C416 is not set +# CONFIG_SCSI_DC395x is not set +# CONFIG_SCSI_DC390T is not set +# CONFIG_SCSI_T128 is not set +# CONFIG_SCSI_NSP32 is not set +# CONFIG_SCSI_DEBUG is not set +# CONFIG_SCSI_SRP is not set + +# +# PCMCIA SCSI adapter support +# +# CONFIG_PCMCIA_AHA152X is not set +# CONFIG_PCMCIA_FDOMAIN is not set +# CONFIG_PCMCIA_NINJA_SCSI is not set +# CONFIG_PCMCIA_QLOGIC is not set +# CONFIG_PCMCIA_SYM53C500 is not set + +# +# Serial ATA (prod) and Parallel ATA (experimental) drivers +# +CONFIG_ATA=y +# CONFIG_ATA_NONSTANDARD is not set +# CONFIG_SATA_AHCI is not set +# CONFIG_SATA_SVW is not set +# CONFIG_ATA_PIIX is not set +# CONFIG_SATA_MV is not set +# CONFIG_SATA_NV is not set +# CONFIG_PDC_ADMA is not set +# CONFIG_SATA_QSTOR is not set +# CONFIG_SATA_PROMISE is not set +# CONFIG_SATA_SX4 is not set +# CONFIG_SATA_SIL is not set +# CONFIG_SATA_SIL24 is not set +# CONFIG_SATA_SIS is not set +# CONFIG_SATA_ULI is not set +# CONFIG_SATA_VIA is not set +# CONFIG_SATA_VITESSE is not set +# CONFIG_SATA_INIC162X is not set +# CONFIG_PATA_ALI is not set +# CONFIG_PATA_AMD is not set +# CONFIG_PATA_ARTOP is not set +# CONFIG_PATA_ATIIXP is not set +# CONFIG_PATA_CMD64X is not set +# CONFIG_PATA_CS5520 is not set +# CONFIG_PATA_CS5530 is not set +# CONFIG_PATA_CYPRESS is not set +# CONFIG_PATA_EFAR is not set +# CONFIG_ATA_GENERIC is not set +# CONFIG_PATA_HPT366 is not set +# CONFIG_PATA_HPT37X is not set +# CONFIG_PATA_HPT3X2N is not set +# CONFIG_PATA_HPT3X3 is not set +# CONFIG_PATA_IT821X is not set +# CONFIG_PATA_IT8213 is not set +# CONFIG_PATA_JMICRON is not set +# CONFIG_PATA_LEGACY is not set +# CONFIG_PATA_TRIFLEX is not set +# CONFIG_PATA_MARVELL is not set +# CONFIG_PATA_MPIIX is not set +# CONFIG_PATA_OLDPIIX is not set +# CONFIG_PATA_NETCELL is not set +# CONFIG_PATA_NS87410 is not set +# CONFIG_PATA_OPTI is not set +# CONFIG_PATA_OPTIDMA is not set +# CONFIG_PATA_PCMCIA is not set +# CONFIG_PATA_PDC_OLD is not set +# CONFIG_PATA_QDI is not set +# CONFIG_PATA_RADISYS is not set +# CONFIG_PATA_RZ1000 is not set +# CONFIG_PATA_SC1200 is not set +# CONFIG_PATA_SERVERWORKS is not set +# CONFIG_PATA_PDC2027X is not set +# CONFIG_PATA_SIL680 is not set +# CONFIG_PATA_SIS is not set +# CONFIG_PATA_VIA is not set +# CONFIG_PATA_WINBOND is not set +# CONFIG_PATA_WINBOND_VLB is not set +CONFIG_PATA_PLATFORM=y + +# +# Old CD-ROM drivers (not SCSI, not IDE) +# +# CONFIG_CD_NO_IDESCSI is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set +# CONFIG_FUSION_SPI is not set +# CONFIG_FUSION_FC is not set +# CONFIG_FUSION_SAS is not set + +# +# IEEE 1394 (FireWire) support +# +# CONFIG_IEEE1394 is not set + +# +# I2O device support +# +# CONFIG_I2O is not set + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# ARCnet devices +# +# CONFIG_ARCNET is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_STNIC is not set +# CONFIG_HAPPYMEAL is not set +# CONFIG_SUNGEM is not set +# CONFIG_CASSINI is not set +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_NET_VENDOR_SMC is not set +# CONFIG_SMC91X is not set +# CONFIG_NET_VENDOR_RACAL is not set + +# +# Tulip family network device support +# +# CONFIG_NET_TULIP is not set +# CONFIG_AT1700 is not set +# CONFIG_DEPCA is not set +# CONFIG_HP100 is not set +# CONFIG_NET_ISA is not set +CONFIG_NET_PCI=y +# CONFIG_PCNET32 is not set +# CONFIG_AMD8111_ETH is not set +# CONFIG_ADAPTEC_STARFIRE is not set +# CONFIG_AC3200 is not set +# CONFIG_APRICOT is not set +# CONFIG_B44 is not set +# CONFIG_FORCEDETH is not set +# CONFIG_CS89x0 is not set +# CONFIG_DGRS is not set +# CONFIG_EEPRO100 is not set +# CONFIG_E100 is not set +# CONFIG_FEALNX is not set +# CONFIG_NATSEMI is not set +CONFIG_NE2K_PCI=y +# CONFIG_8139CP is not set +CONFIG_8139TOO=y +CONFIG_8139TOO_PIO=y +CONFIG_8139TOO_TUNE_TWISTER=y +# CONFIG_8139TOO_8129 is not set +# CONFIG_8139_OLD_RX_RESET is not set +# CONFIG_SIS900 is not set +# CONFIG_EPIC100 is not set +# CONFIG_SUNDANCE is not set +# CONFIG_TLAN is not set +# CONFIG_VIA_RHINE is not set +# CONFIG_SC92031 is not set + +# +# Ethernet (1000 Mbit) +# +# CONFIG_ACENIC is not set +# CONFIG_DL2K is not set +# CONFIG_E1000 is not set +# CONFIG_NS83820 is not set +# CONFIG_HAMACHI is not set +# CONFIG_YELLOWFIN is not set +# CONFIG_R8169 is not set +# CONFIG_SIS190 is not set +# CONFIG_SKGE is not set +# CONFIG_SKY2 is not set +# CONFIG_SK98LIN is not set +# CONFIG_VIA_VELOCITY is not set +# CONFIG_TIGON3 is not set +# CONFIG_BNX2 is not set +# CONFIG_QLA3XXX is not set +# CONFIG_ATL1 is not set + +# +# Ethernet (10000 Mbit) +# +# CONFIG_CHELSIO_T1 is not set +# CONFIG_CHELSIO_T3 is not set +# CONFIG_IXGB is not set +# CONFIG_S2IO is not set +# CONFIG_MYRI10GE is not set +# CONFIG_NETXEN_NIC is not set + +# +# Token Ring devices +# +# CONFIG_TR is not set + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# PCMCIA network device support +# +CONFIG_NET_PCMCIA=y +# CONFIG_PCMCIA_3C589 is not set +# CONFIG_PCMCIA_3C574 is not set +# CONFIG_PCMCIA_FMVJ18X is not set +CONFIG_PCMCIA_PCNET=y +# CONFIG_PCMCIA_NMCLAN is not set +# CONFIG_PCMCIA_SMC91C92 is not set +# CONFIG_PCMCIA_XIRC2PS is not set +# CONFIG_PCMCIA_AXNET is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_FDDI is not set +# CONFIG_HIPPI is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_NET_FC is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y +# CONFIG_INPUT_FF_MEMLESS is not set + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +CONFIG_VT=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +# CONFIG_VT_HW_CONSOLE_BINDING is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_NR_UARTS=2 +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_JSM is not set +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +CONFIG_HW_RANDOM=y +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_APPLICOM is not set +# CONFIG_DRM is not set + +# +# PCMCIA character devices +# +# CONFIG_SYNCLINK_CS is not set +# CONFIG_CARDMAN_4000 is not set +# CONFIG_CARDMAN_4040 is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_SENSORS_ABITUGURU is not set +# CONFIG_SENSORS_F71805F is not set +# CONFIG_SENSORS_PC87427 is not set +# CONFIG_SENSORS_VT1211 is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Multifunction device drivers +# +# CONFIG_MFD_SM501 is not set + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set +# CONFIG_FB is not set + +# +# Console display driver support +# +# CONFIG_MDA_CONSOLE is not set +CONFIG_DUMMY_CONSOLE=y + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# HID Devices +# +CONFIG_HID=y +# CONFIG_HID_DEBUG is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +CONFIG_USB_ARCH_HAS_EHCI=y +# CONFIG_USB is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# +# CONFIG_INFINIBAND is not set + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +CONFIG_RTC_LIB=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_HCTOSYS=y +CONFIG_RTC_HCTOSYS_DEVICE="rtc0" +# CONFIG_RTC_DEBUG is not set + +# +# RTC interfaces +# +CONFIG_RTC_INTF_SYSFS=y +CONFIG_RTC_INTF_PROC=y +CONFIG_RTC_INTF_DEV=y +# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set + +# +# RTC drivers +# +# CONFIG_RTC_DRV_DS1553 is not set +# CONFIG_RTC_DRV_DS1742 is not set +# CONFIG_RTC_DRV_M48T86 is not set +# CONFIG_RTC_DRV_SH is not set +# CONFIG_RTC_DRV_TEST is not set +# CONFIG_RTC_DRV_V3020 is not set + +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + +# +# Auxiliary Display support +# + +# +# Virtualization +# + +# +# File systems +# +CONFIG_EXT2_FS=y +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_XATTR=y +# CONFIG_EXT3_FS_POSIX_ACL is not set +# CONFIG_EXT3_FS_SECURITY is not set +# CONFIG_EXT4DEV_FS is not set +CONFIG_JBD=y +# CONFIG_JBD_DEBUG is not set +CONFIG_FS_MBCACHE=y +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +CONFIG_ROMFS_FS=y +CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=y +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +# CONFIG_PROC_KCORE is not set +CONFIG_PROC_SYSCTL=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_TMPFS_POSIX_ACL is not set +# CONFIG_HUGETLBFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +# CONFIG_NFS_FS is not set +# CONFIG_NFSD is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +CONFIG_NLS_CODEPAGE_437=y +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +# CONFIG_NLS_ISO8859_1 is not set +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set + +# +# Distributed Lock Manager +# +# CONFIG_DLM is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +CONFIG_TRACE_IRQFLAGS_SUPPORT=y +# CONFIG_PRINTK_TIME is not set +CONFIG_ENABLE_MUST_CHECK=y +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_UNUSED_SYMBOLS is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_HEADERS_CHECK is not set +# CONFIG_DEBUG_KERNEL is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_DEBUG_BUGVERBOSE is not set +CONFIG_SH_STANDARD_BIOS=y +# CONFIG_EARLY_SCIF_CONSOLE is not set +# CONFIG_EARLY_PRINTK is not set +# CONFIG_SH_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Library routines +# +CONFIG_BITREVERSE=y +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_PLIST=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y diff --git a/arch/sh/configs/r7780rp_defconfig b/arch/sh/configs/r7780rp_defconfig index 2b75b48..48c6a21 100644 --- a/arch/sh/configs/r7780rp_defconfig +++ b/arch/sh/configs/r7780rp_defconfig @@ -1,10 +1,11 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.19 -# Wed Dec 6 11:59:38 2006 +# Linux kernel version: 2.6.21-rc7 +# Tue May 1 12:28:39 2007 # CONFIG_SUPERH=y CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_BUG=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_HARDIRQS=y @@ -13,6 +14,8 @@ CONFIG_GENERIC_CALIBRATE_DELAY=y # CONFIG_GENERIC_TIME is not set CONFIG_STACKTRACE_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # @@ -31,6 +34,7 @@ CONFIG_LOCALVERSION_AUTO=y CONFIG_SWAP=y CONFIG_SYSVIPC=y # CONFIG_IPC_NS is not set +CONFIG_SYSVIPC_SYSCTL=y # CONFIG_POSIX_MQUEUE is not set CONFIG_BSD_PROCESS_ACCT=y # CONFIG_BSD_PROCESS_ACCT_V3 is not set @@ -41,7 +45,7 @@ CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y # CONFIG_SYSFS_DEPRECATED is not set # CONFIG_RELAY is not set -CONFIG_INITRAMFS_SOURCE="" +# CONFIG_BLK_DEV_INITRD is not set CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_SYSCTL=y CONFIG_EMBEDDED=y @@ -99,23 +103,23 @@ CONFIG_DEFAULT_IOSCHED="noop" # System type # # CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7722_SOLUTION_ENGINE is not set # CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7780_SOLUTION_ENGINE is not set # CONFIG_SH_7300_SOLUTION_ENGINE is not set # CONFIG_SH_7343_SOLUTION_ENGINE is not set # CONFIG_SH_73180_SOLUTION_ENGINE is not set # CONFIG_SH_7751_SYSTEMH is not set # CONFIG_SH_HP6XX is not set -# CONFIG_SH_EC3104 is not set # CONFIG_SH_SATURN is not set # CONFIG_SH_DREAMCAST is not set -# CONFIG_SH_BIGSUR is not set # CONFIG_SH_MPC1211 is not set # CONFIG_SH_SH03 is not set # CONFIG_SH_SECUREEDGE5410 is not set # CONFIG_SH_HS7751RVOIP is not set # CONFIG_SH_7710VOIPGW is not set # CONFIG_SH_RTS7751R2D is not set -CONFIG_SH_R7780RP=y +CONFIG_SH_HIGHLANDER=y # CONFIG_SH_EDOSK7705 is not set # CONFIG_SH_SH4202_MICRODEV is not set # CONFIG_SH_LANDISK is not set @@ -123,7 +127,11 @@ CONFIG_SH_R7780RP=y # CONFIG_SH_SHMIN is not set # CONFIG_SH_7206_SOLUTION_ENGINE is not set # CONFIG_SH_7619_SOLUTION_ENGINE is not set +# CONFIG_SH_LBOX_RE2 is not set # CONFIG_SH_UNKNOWN is not set +CONFIG_SH_R7780RP=y +# CONFIG_SH_R7780MP is not set +# CONFIG_SH_R7785RP is not set # # Processor selection @@ -152,6 +160,7 @@ CONFIG_CPU_SH4A=y # CONFIG_CPU_SUBTYPE_SH7708 is not set # CONFIG_CPU_SUBTYPE_SH7709 is not set # CONFIG_CPU_SUBTYPE_SH7710 is not set +# CONFIG_CPU_SUBTYPE_SH7712 is not set # # SH-4 Processor Support @@ -183,6 +192,7 @@ CONFIG_CPU_SUBTYPE_SH7780=y # # CONFIG_CPU_SUBTYPE_SH73180 is not set # CONFIG_CPU_SUBTYPE_SH7343 is not set +# CONFIG_CPU_SUBTYPE_SH7722 is not set # # Memory management options @@ -193,6 +203,8 @@ CONFIG_MEMORY_START=0x08000000 CONFIG_MEMORY_SIZE=0x08000000 # CONFIG_32BIT is not set CONFIG_VSYSCALL=y +CONFIG_ARCH_FLATMEM_ENABLE=y +CONFIG_ARCH_POPULATES_NODE_MAP=y CONFIG_PAGE_SIZE_4KB=y # CONFIG_PAGE_SIZE_8KB is not set # CONFIG_PAGE_SIZE_64KB is not set @@ -210,6 +222,7 @@ CONFIG_FLAT_NODE_MEM_MAP=y # CONFIG_SPARSEMEM_STATIC is not set CONFIG_SPLIT_PTLOCK_CPUS=4 # CONFIG_RESOURCES_64BIT is not set +CONFIG_ZONE_DMA_FLAG=0 # # Cache configuration @@ -226,20 +239,15 @@ CONFIG_CPU_LITTLE_ENDIAN=y CONFIG_SH_FPU=y # CONFIG_SH_DSP is not set CONFIG_SH_STORE_QUEUES=y +CONFIG_SPECULATIVE_EXECUTION=y CONFIG_CPU_HAS_INTEVT=y CONFIG_CPU_HAS_INTC2_IRQ=y CONFIG_CPU_HAS_SR_RB=y -CONFIG_CPU_HAS_PTEA=y # -# Timer support +# Timer and clock configuration # CONFIG_SH_TMU=y - -# -# R7780RP options -# -CONFIG_SH_R7780MP=y CONFIG_SH_TIMER_IRQ=28 CONFIG_NO_IDLE_HZ=y CONFIG_SH_PCLK_FREQ=32000000 @@ -262,6 +270,7 @@ CONFIG_SH_PCLK_FREQ=32000000 # # Additional SuperH Device Drivers # +# CONFIG_HEARTBEAT is not set CONFIG_PUSH_SWITCH=y # @@ -269,9 +278,11 @@ CONFIG_PUSH_SWITCH=y # # CONFIG_HZ_100 is not set CONFIG_HZ_250=y +# CONFIG_HZ_300 is not set # CONFIG_HZ_1000 is not set CONFIG_HZ=250 CONFIG_KEXEC=y +# CONFIG_CRASH_DUMP is not set # CONFIG_SMP is not set # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set @@ -294,7 +305,6 @@ CONFIG_PCI=y CONFIG_SH_PCIDMA_NONCOHERENT=y CONFIG_PCI_AUTO=y CONFIG_PCI_AUTO_UPDATE_RESOURCES=y -# CONFIG_PCI_MULTITHREAD_PROBE is not set # CONFIG_PCI_DEBUG is not set # @@ -334,6 +344,7 @@ CONFIG_UNIX=y CONFIG_XFRM=y # CONFIG_XFRM_USER is not set # CONFIG_XFRM_SUB_POLICY is not set +# CONFIG_XFRM_MIGRATE is not set # CONFIG_NET_KEY is not set CONFIG_INET=y # CONFIG_IP_MULTICAST is not set @@ -425,6 +436,7 @@ CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=m # CONFIG_DEBUG_DRIVER is not set +# CONFIG_DEBUG_DEVRES is not set # CONFIG_SYS_HYPERVISOR is not set # @@ -445,6 +457,7 @@ CONFIG_FW_LOADER=m # # Plug and Play support # +# CONFIG_PNPACPI is not set # # Block devices @@ -461,7 +474,6 @@ CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=4096 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 -# CONFIG_BLK_DEV_INITRD is not set # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set @@ -481,6 +493,7 @@ CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 # # CONFIG_RAID_ATTRS is not set CONFIG_SCSI=y +# CONFIG_SCSI_TGT is not set # CONFIG_SCSI_NETLINK is not set CONFIG_SCSI_PROC_FS=y @@ -500,6 +513,7 @@ CONFIG_CHR_DEV_SG=m # CONFIG_SCSI_MULTI_LUN is not set # CONFIG_SCSI_CONSTANTS is not set # CONFIG_SCSI_LOGGING is not set +# CONFIG_SCSI_SCAN_ASYNC is not set # # SCSI Transports @@ -544,11 +558,13 @@ CONFIG_CHR_DEV_SG=m # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_NSP32 is not set # CONFIG_SCSI_DEBUG is not set +# CONFIG_SCSI_SRP is not set # # Serial ATA (prod) and Parallel ATA (experimental) drivers # CONFIG_ATA=y +# CONFIG_ATA_NONSTANDARD is not set # CONFIG_SATA_AHCI is not set # CONFIG_SATA_SVW is not set # CONFIG_ATA_PIIX is not set @@ -564,6 +580,7 @@ CONFIG_SATA_SIL=y # CONFIG_SATA_ULI is not set # CONFIG_SATA_VIA is not set # CONFIG_SATA_VITESSE is not set +# CONFIG_SATA_INIC162X is not set # CONFIG_PATA_ALI is not set # CONFIG_PATA_AMD is not set # CONFIG_PATA_ARTOP is not set @@ -579,6 +596,7 @@ CONFIG_SATA_SIL=y # CONFIG_PATA_HPT3X2N is not set # CONFIG_PATA_HPT3X3 is not set # CONFIG_PATA_IT821X is not set +# CONFIG_PATA_IT8213 is not set # CONFIG_PATA_JMICRON is not set # CONFIG_PATA_TRIFLEX is not set # CONFIG_PATA_MARVELL is not set @@ -685,6 +703,7 @@ CONFIG_8139TOO_8129=y CONFIG_VIA_RHINE=m CONFIG_VIA_RHINE_MMIO=y # CONFIG_VIA_RHINE_NAPI is not set +# CONFIG_SC92031 is not set # # Ethernet (1000 Mbit) @@ -707,11 +726,13 @@ CONFIG_R8169=y # CONFIG_TIGON3 is not set # CONFIG_BNX2 is not set # CONFIG_QLA3XXX is not set +# CONFIG_ATL1 is not set # # Ethernet (10000 Mbit) # # CONFIG_CHELSIO_T1 is not set +# CONFIG_CHELSIO_T3 is not set # CONFIG_IXGB is not set # CONFIG_S2IO is not set # CONFIG_MYRI10GE is not set @@ -889,10 +910,16 @@ CONFIG_HWMON=y # CONFIG_HWMON_VID is not set # CONFIG_SENSORS_ABITUGURU is not set # CONFIG_SENSORS_F71805F is not set +# CONFIG_SENSORS_PC87427 is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_HWMON_DEBUG_CHIP is not set # +# Multifunction device drivers +# +# CONFIG_MFD_SM501 is not set + +# # Multimedia devices # # CONFIG_VIDEO_DEV is not set @@ -905,9 +932,8 @@ CONFIG_HWMON=y # # Graphics support # -CONFIG_FIRMWARE_EDID=y -# CONFIG_FB is not set # CONFIG_BACKLIGHT_LCD_SUPPORT is not set +# CONFIG_FB is not set # # Sound @@ -923,9 +949,8 @@ CONFIG_SOUND=m # Open Sound System # CONFIG_SOUND_PRIME=m -# CONFIG_OSS_OBSOLETE_DRIVER is not set +# CONFIG_OBSOLETE_OSS is not set # CONFIG_SOUND_BT878 is not set -# CONFIG_SOUND_ES1371 is not set # CONFIG_SOUND_ICH is not set # CONFIG_SOUND_TRIDENT is not set # CONFIG_SOUND_MSNDCLAS is not set @@ -933,6 +958,12 @@ CONFIG_SOUND_PRIME=m # CONFIG_SOUND_VIA82CXXX is not set # +# HID Devices +# +CONFIG_HID=y +# CONFIG_HID_DEBUG is not set + +# # USB support # CONFIG_USB_ARCH_HAS_HCD=y @@ -1017,6 +1048,14 @@ CONFIG_RTC_DRV_SH=y # # +# Auxiliary Display support +# + +# +# Virtualization +# + +# # File systems # CONFIG_EXT2_FS=y @@ -1175,6 +1214,11 @@ CONFIG_NLS_ISO8859_1=y # CONFIG_NLS_UTF8 is not set # +# Distributed Lock Manager +# +# CONFIG_DLM is not set + +# # Profiling support # CONFIG_PROFILING=y @@ -1184,19 +1228,22 @@ CONFIG_OPROFILE=m # Kernel hacking # CONFIG_TRACE_IRQFLAGS_SUPPORT=y -CONFIG_PRINTK_TIME=y +# CONFIG_PRINTK_TIME is not set CONFIG_ENABLE_MUST_CHECK=y CONFIG_MAGIC_SYSRQ=y # CONFIG_UNUSED_SYMBOLS is not set +CONFIG_DEBUG_FS=y +# CONFIG_HEADERS_CHECK is not set CONFIG_DEBUG_KERNEL=y +# CONFIG_DEBUG_SHIRQ is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_DETECT_SOFTLOCKUP=y # CONFIG_SCHEDSTATS is not set +# CONFIG_TIMER_STATS is not set # CONFIG_DEBUG_SLAB is not set # CONFIG_DEBUG_PREEMPT is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set -# CONFIG_DEBUG_RWSEMS is not set # CONFIG_DEBUG_LOCK_ALLOC is not set # CONFIG_PROVE_LOCKING is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set @@ -1204,19 +1251,19 @@ CONFIG_DETECT_SOFTLOCKUP=y # CONFIG_DEBUG_KOBJECT is not set CONFIG_DEBUG_BUGVERBOSE=y CONFIG_DEBUG_INFO=y -CONFIG_DEBUG_FS=y # CONFIG_DEBUG_VM is not set # CONFIG_DEBUG_LIST is not set -CONFIG_FRAME_POINTER=y +# CONFIG_FRAME_POINTER is not set CONFIG_FORCED_INLINING=y -# CONFIG_HEADERS_CHECK is not set # CONFIG_RCU_TORTURE_TEST is not set -# CONFIG_SH_STANDARD_BIOS is not set +# CONFIG_FAULT_INJECTION is not set +CONFIG_SH_STANDARD_BIOS=y # CONFIG_EARLY_SCIF_CONSOLE is not set +CONFIG_EARLY_PRINTK=y CONFIG_DEBUG_STACKOVERFLOW=y # CONFIG_DEBUG_STACK_USAGE is not set # CONFIG_4KSTACKS is not set -# CONFIG_KGDB is not set +# CONFIG_SH_KGDB is not set # # Security options @@ -1233,6 +1280,7 @@ CONFIG_CRYPTO_BLKCIPHER=y CONFIG_CRYPTO_HASH=y CONFIG_CRYPTO_MANAGER=y CONFIG_CRYPTO_HMAC=y +# CONFIG_CRYPTO_XCBC is not set # CONFIG_CRYPTO_NULL is not set # CONFIG_CRYPTO_MD4 is not set CONFIG_CRYPTO_MD5=y @@ -1241,9 +1289,13 @@ CONFIG_CRYPTO_MD5=y # CONFIG_CRYPTO_SHA512 is not set # CONFIG_CRYPTO_WP512 is not set # CONFIG_CRYPTO_TGR192 is not set +# CONFIG_CRYPTO_GF128MUL is not set CONFIG_CRYPTO_ECB=m CONFIG_CRYPTO_CBC=y +CONFIG_CRYPTO_PCBC=m +# CONFIG_CRYPTO_LRW is not set CONFIG_CRYPTO_DES=y +# CONFIG_CRYPTO_FCRYPT is not set # CONFIG_CRYPTO_BLOWFISH is not set # CONFIG_CRYPTO_TWOFISH is not set # CONFIG_CRYPTO_SERPENT is not set @@ -1257,6 +1309,7 @@ CONFIG_CRYPTO_DES=y # CONFIG_CRYPTO_DEFLATE is not set # CONFIG_CRYPTO_MICHAEL_MIC is not set # CONFIG_CRYPTO_CRC32C is not set +# CONFIG_CRYPTO_CAMELLIA is not set # CONFIG_CRYPTO_TEST is not set # @@ -1266,7 +1319,10 @@ CONFIG_CRYPTO_DES=y # # Library routines # +CONFIG_BITREVERSE=y # CONFIG_CRC_CCITT is not set # CONFIG_CRC16 is not set CONFIG_CRC32=y # CONFIG_LIBCRC32C is not set +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y diff --git a/arch/sh/configs/r7785rp_defconfig b/arch/sh/configs/r7785rp_defconfig new file mode 100644 index 0000000..0f5ec64 --- /dev/null +++ b/arch/sh/configs/r7785rp_defconfig @@ -0,0 +1,1334 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.21-rc3 +# Mon Mar 12 14:26:33 2007 +# +CONFIG_SUPERH=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_BUG=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +# CONFIG_GENERIC_TIME is not set +CONFIG_STACKTRACE_SUPPORT=y +CONFIG_LOCKDEP_SUPPORT=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_LOCK_KERNEL=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +# CONFIG_IPC_NS is not set +CONFIG_SYSVIPC_SYSCTL=y +# CONFIG_POSIX_MQUEUE is not set +CONFIG_BSD_PROCESS_ACCT=y +# CONFIG_BSD_PROCESS_ACCT_V3 is not set +# CONFIG_TASKSTATS is not set +# CONFIG_UTS_NS is not set +# CONFIG_AUDIT is not set +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +# CONFIG_SYSFS_DEPRECATED is not set +# CONFIG_RELAY is not set +# CONFIG_BLK_DEV_INITRD is not set +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_SYSCTL=y +CONFIG_EMBEDDED=y +CONFIG_UID16=y +# CONFIG_SYSCTL_SYSCALL is not set +CONFIG_KALLSYMS=y +CONFIG_KALLSYMS_ALL=y +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +CONFIG_SHMEM=y +CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 +# CONFIG_SLOB is not set + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# Block layer +# +CONFIG_BLOCK=y +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +# CONFIG_IOSCHED_AS is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +# CONFIG_DEFAULT_AS is not set +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +CONFIG_DEFAULT_NOOP=y +CONFIG_DEFAULT_IOSCHED="noop" + +# +# System type +# +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_7343_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_7710VOIPGW is not set +# CONFIG_SH_RTS7751R2D is not set +CONFIG_SH_HIGHLANDER=y +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_TITAN is not set +# CONFIG_SH_SHMIN is not set +# CONFIG_SH_7206_SOLUTION_ENGINE is not set +# CONFIG_SH_7619_SOLUTION_ENGINE is not set +# CONFIG_SH_UNKNOWN is not set +# CONFIG_SH_R7780RP is not set +# CONFIG_SH_R7780MP is not set +CONFIG_SH_R7785RP=y + +# +# Processor selection +# +CONFIG_CPU_SH4=y +CONFIG_CPU_SH4A=y +CONFIG_CPU_SHX2=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set +# CONFIG_CPU_SUBTYPE_SH7619 is not set + +# +# SH-2A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7206 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7706 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set +# CONFIG_CPU_SUBTYPE_SH7710 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +# CONFIG_CPU_SUBTYPE_SH7751 is not set +# CONFIG_CPU_SUBTYPE_SH7751R is not set +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7770 is not set +# CONFIG_CPU_SUBTYPE_SH7780 is not set +CONFIG_CPU_SUBTYPE_SH7785=y + +# +# SH4AL-DSP Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7343 is not set +# CONFIG_CPU_SUBTYPE_SH7722 is not set + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_PAGE_OFFSET=0x80000000 +CONFIG_MEMORY_START=0x08000000 +CONFIG_MEMORY_SIZE=0x08000000 +CONFIG_32BIT=y +# CONFIG_X2TLB is not set +CONFIG_VSYSCALL=y +CONFIG_PAGE_SIZE_4KB=y +# CONFIG_PAGE_SIZE_8KB is not set +# CONFIG_PAGE_SIZE_64KB is not set +# CONFIG_HUGETLB_PAGE_SIZE_64K is not set +# CONFIG_HUGETLB_PAGE_SIZE_256K is not set +CONFIG_HUGETLB_PAGE_SIZE_1MB=y +# CONFIG_HUGETLB_PAGE_SIZE_4MB is not set +# CONFIG_HUGETLB_PAGE_SIZE_64MB is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 +# CONFIG_RESOURCES_64BIT is not set +CONFIG_ZONE_DMA_FLAG=0 + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +# CONFIG_CPU_BIG_ENDIAN is not set +CONFIG_SH_FPU=y +# CONFIG_SH_DSP is not set +CONFIG_SH_STORE_QUEUES=y +CONFIG_CPU_HAS_INTEVT=y +CONFIG_CPU_HAS_INTC2_IRQ=y +CONFIG_CPU_HAS_SR_RB=y +CONFIG_CPU_HAS_PTEA=y + +# +# Timer and clock configuration +# +CONFIG_SH_TMU=y +CONFIG_SH_TIMER_IRQ=28 +CONFIG_NO_IDLE_HZ=y +CONFIG_SH_PCLK_FREQ=50000000 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +# CONFIG_SH_DMA is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set + +# +# Additional SuperH Device Drivers +# +CONFIG_HEARTBEAT=y +CONFIG_PUSH_SWITCH=y + +# +# Kernel features +# +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y +# CONFIG_HZ_300 is not set +# CONFIG_HZ_1000 is not set +CONFIG_HZ=250 +CONFIG_KEXEC=y +# CONFIG_SMP is not set +# CONFIG_PREEMPT_NONE is not set +# CONFIG_PREEMPT_VOLUNTARY is not set +CONFIG_PREEMPT=y +CONFIG_PREEMPT_BKL=y + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00800000 +# CONFIG_UBC_WAKEUP is not set +CONFIG_CMDLINE_BOOL=y +CONFIG_CMDLINE="console=ttySC0,115200 root=/dev/sda1" + +# +# Bus options +# +CONFIG_PCI=y +CONFIG_SH_PCIDMA_NONCOHERENT=y +CONFIG_PCI_AUTO=y +CONFIG_PCI_AUTO_UPDATE_RESOURCES=y +# CONFIG_PCI_DEBUG is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# +# CONFIG_HOTPLUG_PCI is not set + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options (EXPERIMENTAL) +# +# CONFIG_PM is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set +# CONFIG_XFRM_SUB_POLICY is not set +# CONFIG_XFRM_MIGRATE is not set +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_ASK_IP_FIB_HASH=y +# CONFIG_IP_FIB_TRIE is not set +CONFIG_IP_FIB_HASH=y +# CONFIG_IP_MULTIPLE_TABLES is not set +# CONFIG_IP_ROUTE_MULTIPATH is not set +# CONFIG_IP_ROUTE_VERBOSE is not set +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +# CONFIG_SYN_COOKIES is not set +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_INET_XFRM_MODE_BEET=y +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_TCP_MD5SIG is not set +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +CONFIG_BRIDGE=m +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +CONFIG_LLC=m +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set +CONFIG_WIRELESS_EXT=y + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=m +# CONFIG_DEBUG_DRIVER is not set +# CONFIG_DEBUG_DEVRES is not set +# CONFIG_SYS_HYPERVISOR is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +# CONFIG_MTD is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# +# CONFIG_PNPACPI is not set + +# +# Block devices +# +# CONFIG_BLK_CPQ_DA is not set +# CONFIG_BLK_CPQ_CISS_DA is not set +# CONFIG_BLK_DEV_DAC960 is not set +# CONFIG_BLK_DEV_UMEM is not set +# CONFIG_BLK_DEV_COW_COMMON is not set +# CONFIG_BLK_DEV_LOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_SX8 is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# Misc devices +# +# CONFIG_SGI_IOC4 is not set +# CONFIG_TIFM_CORE is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=y +# CONFIG_SCSI_TGT is not set +# CONFIG_SCSI_NETLINK is not set +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=y +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +# CONFIG_BLK_DEV_SR is not set +CONFIG_CHR_DEV_SG=m +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set +# CONFIG_SCSI_SCAN_ASYNC is not set + +# +# SCSI Transports +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set +# CONFIG_SCSI_SAS_LIBSAS is not set + +# +# SCSI low-level drivers +# +# CONFIG_ISCSI_TCP is not set +# CONFIG_BLK_DEV_3W_XXXX_RAID is not set +# CONFIG_SCSI_3W_9XXX is not set +# CONFIG_SCSI_ACARD is not set +# CONFIG_SCSI_AACRAID is not set +# CONFIG_SCSI_AIC7XXX is not set +# CONFIG_SCSI_AIC7XXX_OLD is not set +# CONFIG_SCSI_AIC79XX is not set +# CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_DPT_I2O is not set +# CONFIG_SCSI_ARCMSR is not set +# CONFIG_MEGARAID_NEWGEN is not set +# CONFIG_MEGARAID_LEGACY is not set +# CONFIG_MEGARAID_SAS is not set +# CONFIG_SCSI_HPTIOP is not set +# CONFIG_SCSI_DMX3191D is not set +# CONFIG_SCSI_FUTURE_DOMAIN is not set +# CONFIG_SCSI_IPS is not set +# CONFIG_SCSI_INITIO is not set +# CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_STEX is not set +# CONFIG_SCSI_SYM53C8XX_2 is not set +# CONFIG_SCSI_IPR is not set +# CONFIG_SCSI_QLOGIC_1280 is not set +# CONFIG_SCSI_QLA_FC is not set +# CONFIG_SCSI_QLA_ISCSI is not set +# CONFIG_SCSI_LPFC is not set +# CONFIG_SCSI_DC395x is not set +# CONFIG_SCSI_DC390T is not set +# CONFIG_SCSI_NSP32 is not set +# CONFIG_SCSI_DEBUG is not set +# CONFIG_SCSI_SRP is not set + +# +# Serial ATA (prod) and Parallel ATA (experimental) drivers +# +CONFIG_ATA=y +# CONFIG_ATA_NONSTANDARD is not set +# CONFIG_SATA_AHCI is not set +# CONFIG_SATA_SVW is not set +# CONFIG_ATA_PIIX is not set +# CONFIG_SATA_MV is not set +# CONFIG_SATA_NV is not set +# CONFIG_PDC_ADMA is not set +# CONFIG_SATA_QSTOR is not set +# CONFIG_SATA_PROMISE is not set +# CONFIG_SATA_SX4 is not set +CONFIG_SATA_SIL=y +# CONFIG_SATA_SIL24 is not set +# CONFIG_SATA_SIS is not set +# CONFIG_SATA_ULI is not set +# CONFIG_SATA_VIA is not set +# CONFIG_SATA_VITESSE is not set +# CONFIG_SATA_INIC162X is not set +# CONFIG_PATA_ALI is not set +# CONFIG_PATA_AMD is not set +# CONFIG_PATA_ARTOP is not set +# CONFIG_PATA_ATIIXP is not set +# CONFIG_PATA_CMD64X is not set +# CONFIG_PATA_CS5520 is not set +# CONFIG_PATA_CS5530 is not set +# CONFIG_PATA_CYPRESS is not set +# CONFIG_PATA_EFAR is not set +# CONFIG_ATA_GENERIC is not set +# CONFIG_PATA_HPT366 is not set +# CONFIG_PATA_HPT37X is not set +# CONFIG_PATA_HPT3X2N is not set +# CONFIG_PATA_HPT3X3 is not set +# CONFIG_PATA_IT821X is not set +# CONFIG_PATA_IT8213 is not set +# CONFIG_PATA_JMICRON is not set +# CONFIG_PATA_TRIFLEX is not set +# CONFIG_PATA_MARVELL is not set +# CONFIG_PATA_MPIIX is not set +# CONFIG_PATA_OLDPIIX is not set +# CONFIG_PATA_NETCELL is not set +# CONFIG_PATA_NS87410 is not set +# CONFIG_PATA_OPTI is not set +# CONFIG_PATA_OPTIDMA is not set +# CONFIG_PATA_PDC_OLD is not set +# CONFIG_PATA_RADISYS is not set +# CONFIG_PATA_RZ1000 is not set +# CONFIG_PATA_SC1200 is not set +# CONFIG_PATA_SERVERWORKS is not set +# CONFIG_PATA_PDC2027X is not set +# CONFIG_PATA_SIL680 is not set +# CONFIG_PATA_SIS is not set +# CONFIG_PATA_VIA is not set +# CONFIG_PATA_WINBOND is not set +CONFIG_PATA_PLATFORM=y + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set +# CONFIG_FUSION_SPI is not set +# CONFIG_FUSION_FC is not set +# CONFIG_FUSION_SAS is not set + +# +# IEEE 1394 (FireWire) support +# +# CONFIG_IEEE1394 is not set + +# +# I2O device support +# +# CONFIG_I2O is not set + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# ARCnet devices +# +# CONFIG_ARCNET is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_STNIC is not set +# CONFIG_HAPPYMEAL is not set +# CONFIG_SUNGEM is not set +# CONFIG_CASSINI is not set +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_SMC91X is not set + +# +# Tulip family network device support +# +# CONFIG_NET_TULIP is not set +# CONFIG_HP100 is not set +# CONFIG_NET_PCI is not set + +# +# Ethernet (1000 Mbit) +# +# CONFIG_ACENIC is not set +# CONFIG_DL2K is not set +# CONFIG_E1000 is not set +# CONFIG_NS83820 is not set +# CONFIG_HAMACHI is not set +# CONFIG_YELLOWFIN is not set +CONFIG_R8169=y +# CONFIG_R8169_NAPI is not set +# CONFIG_SIS190 is not set +# CONFIG_SKGE is not set +# CONFIG_SKY2 is not set +# CONFIG_SK98LIN is not set +# CONFIG_TIGON3 is not set +# CONFIG_BNX2 is not set +# CONFIG_QLA3XXX is not set +# CONFIG_ATL1 is not set + +# +# Ethernet (10000 Mbit) +# +# CONFIG_CHELSIO_T1 is not set +# CONFIG_CHELSIO_T3 is not set +# CONFIG_IXGB is not set +# CONFIG_S2IO is not set +# CONFIG_MYRI10GE is not set +# CONFIG_NETXEN_NIC is not set + +# +# Token Ring devices +# +# CONFIG_TR is not set + +# +# Wireless LAN (non-hamradio) +# +CONFIG_NET_RADIO=y +# CONFIG_NET_WIRELESS_RTNETLINK is not set + +# +# Obsolete Wireless cards support (pre-802.11) +# +# CONFIG_STRIP is not set + +# +# Wireless 802.11b ISA/PCI cards support +# +# CONFIG_IPW2100 is not set +# CONFIG_IPW2200 is not set +# CONFIG_HERMES is not set +# CONFIG_ATMEL is not set + +# +# Prism GT/Duette 802.11(a/b/g) PCI/Cardbus support +# +# CONFIG_PRISM54 is not set +# CONFIG_HOSTAP is not set +CONFIG_NET_WIRELESS=y + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_FDDI is not set +# CONFIG_HIPPI is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_NET_FC is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y +# CONFIG_INPUT_FF_MEMLESS is not set + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +CONFIG_INPUT_KEYBOARD=y +CONFIG_KEYBOARD_ATKBD=y +# CONFIG_KEYBOARD_SUNKBD is not set +# CONFIG_KEYBOARD_LKKBD is not set +# CONFIG_KEYBOARD_XTKBD is not set +# CONFIG_KEYBOARD_NEWTON is not set +# CONFIG_KEYBOARD_STOWAWAY is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +CONFIG_SERIO=y +# CONFIG_SERIO_I8042 is not set +# CONFIG_SERIO_SERPORT is not set +# CONFIG_SERIO_PCIPS2 is not set +CONFIG_SERIO_LIBPS2=y +# CONFIG_SERIO_RAW is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_NR_UARTS=6 +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_JSM is not set +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +CONFIG_HW_RANDOM=y +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_APPLICOM is not set +# CONFIG_DRM is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_SENSORS_ABITUGURU is not set +# CONFIG_SENSORS_F71805F is not set +# CONFIG_SENSORS_PC87427 is not set +# CONFIG_SENSORS_VT1211 is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Multifunction device drivers +# +# CONFIG_MFD_SM501 is not set + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set +CONFIG_FB=y +# CONFIG_FIRMWARE_EDID is not set +# CONFIG_FB_DDC is not set +# CONFIG_FB_CFB_FILLRECT is not set +# CONFIG_FB_CFB_COPYAREA is not set +# CONFIG_FB_CFB_IMAGEBLIT is not set +# CONFIG_FB_SVGALIB is not set +# CONFIG_FB_MACMODES is not set +# CONFIG_FB_BACKLIGHT is not set +# CONFIG_FB_MODE_HELPERS is not set +# CONFIG_FB_TILEBLITTING is not set + +# +# Frambuffer hardware drivers +# +# CONFIG_FB_CIRRUS is not set +# CONFIG_FB_PM2 is not set +# CONFIG_FB_CYBER2000 is not set +# CONFIG_FB_ASILIANT is not set +# CONFIG_FB_IMSTT is not set +# CONFIG_FB_EPSON1355 is not set +# CONFIG_FB_S1D13XXX is not set +# CONFIG_FB_NVIDIA is not set +# CONFIG_FB_RIVA is not set +# CONFIG_FB_MATROX is not set +# CONFIG_FB_RADEON is not set +# CONFIG_FB_ATY128 is not set +# CONFIG_FB_ATY is not set +# CONFIG_FB_S3 is not set +# CONFIG_FB_SAVAGE is not set +# CONFIG_FB_SIS is not set +# CONFIG_FB_NEOMAGIC is not set +# CONFIG_FB_KYRO is not set +# CONFIG_FB_3DFX is not set +# CONFIG_FB_VOODOO1 is not set +# CONFIG_FB_TRIDENT is not set +# CONFIG_FB_VIRTUAL is not set + +# +# Logo configuration +# +# CONFIG_LOGO is not set + +# +# Sound +# +CONFIG_SOUND=m + +# +# Advanced Linux Sound Architecture +# +# CONFIG_SND is not set + +# +# Open Sound System +# +CONFIG_SOUND_PRIME=m +# CONFIG_OBSOLETE_OSS is not set +# CONFIG_SOUND_BT878 is not set +# CONFIG_SOUND_ICH is not set +# CONFIG_SOUND_TRIDENT is not set +# CONFIG_SOUND_MSNDCLAS is not set +# CONFIG_SOUND_MSNDPIN is not set +# CONFIG_SOUND_VIA82CXXX is not set + +# +# HID Devices +# +CONFIG_HID=y +# CONFIG_HID_DEBUG is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +CONFIG_USB_ARCH_HAS_EHCI=y +# CONFIG_USB is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# +# CONFIG_INFINIBAND is not set + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +CONFIG_RTC_LIB=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_HCTOSYS=y +CONFIG_RTC_HCTOSYS_DEVICE="rtc0" +# CONFIG_RTC_DEBUG is not set + +# +# RTC interfaces +# +CONFIG_RTC_INTF_SYSFS=y +CONFIG_RTC_INTF_PROC=y +CONFIG_RTC_INTF_DEV=y +# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set + +# +# RTC drivers +# +# CONFIG_RTC_DRV_DS1553 is not set +# CONFIG_RTC_DRV_DS1742 is not set +# CONFIG_RTC_DRV_M48T86 is not set +CONFIG_RTC_DRV_SH=y +# CONFIG_RTC_DRV_TEST is not set +# CONFIG_RTC_DRV_V3020 is not set + +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + +# +# Auxiliary Display support +# + +# +# Virtualization +# + +# +# File systems +# +CONFIG_EXT2_FS=y +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_XATTR=y +# CONFIG_EXT3_FS_POSIX_ACL is not set +# CONFIG_EXT3_FS_SECURITY is not set +# CONFIG_EXT4DEV_FS is not set +CONFIG_JBD=y +# CONFIG_JBD_DEBUG is not set +CONFIG_FS_MBCACHE=y +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +CONFIG_FS_POSIX_ACL=y +# CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set +# CONFIG_OCFS2_FS is not set +CONFIG_MINIX_FS=y +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +CONFIG_FUSE_FS=m + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=y +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +CONFIG_NTFS_FS=y +# CONFIG_NTFS_DEBUG is not set +CONFIG_NTFS_RW=y + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_KCORE=y +CONFIG_PROC_SYSCTL=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_TMPFS_POSIX_ACL is not set +CONFIG_HUGETLBFS=y +CONFIG_HUGETLB_PAGE=y +CONFIG_RAMFS=y +CONFIG_CONFIGFS_FS=m + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +CONFIG_NFS_V4=y +# CONFIG_NFS_DIRECTIO is not set +CONFIG_NFSD=y +CONFIG_NFSD_V3=y +# CONFIG_NFSD_V3_ACL is not set +CONFIG_NFSD_V4=y +CONFIG_NFSD_TCP=y +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_EXPORTFS=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +CONFIG_SUNRPC_GSS=y +CONFIG_RPCSEC_GSS_KRB5=y +# CONFIG_RPCSEC_GSS_SPKM3 is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +CONFIG_NLS_CODEPAGE_437=y +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +CONFIG_NLS_CODEPAGE_932=y +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +CONFIG_NLS_ISO8859_1=y +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set + +# +# Distributed Lock Manager +# +# CONFIG_DLM is not set + +# +# Profiling support +# +CONFIG_PROFILING=y +CONFIG_OPROFILE=m + +# +# Kernel hacking +# +CONFIG_TRACE_IRQFLAGS_SUPPORT=y +# CONFIG_PRINTK_TIME is not set +CONFIG_ENABLE_MUST_CHECK=y +CONFIG_MAGIC_SYSRQ=y +# CONFIG_UNUSED_SYMBOLS is not set +CONFIG_DEBUG_FS=y +# CONFIG_HEADERS_CHECK is not set +CONFIG_DEBUG_KERNEL=y +# CONFIG_DEBUG_SHIRQ is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_DETECT_SOFTLOCKUP is not set +# CONFIG_SCHEDSTATS is not set +# CONFIG_TIMER_STATS is not set +# CONFIG_DEBUG_SLAB is not set +# CONFIG_DEBUG_PREEMPT is not set +CONFIG_DEBUG_SPINLOCK=y +CONFIG_DEBUG_MUTEXES=y +CONFIG_DEBUG_LOCK_ALLOC=y +# CONFIG_PROVE_LOCKING is not set +CONFIG_LOCKDEP=y +# CONFIG_DEBUG_LOCKDEP is not set +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +CONFIG_DEBUG_LOCKING_API_SELFTESTS=y +CONFIG_STACKTRACE=y +# CONFIG_DEBUG_KOBJECT is not set +CONFIG_DEBUG_BUGVERBOSE=y +CONFIG_DEBUG_INFO=y +# CONFIG_DEBUG_VM is not set +# CONFIG_DEBUG_LIST is not set +CONFIG_FRAME_POINTER=y +CONFIG_FORCED_INLINING=y +# CONFIG_RCU_TORTURE_TEST is not set +# CONFIG_FAULT_INJECTION is not set +CONFIG_SH_STANDARD_BIOS=y +# CONFIG_EARLY_SCIF_CONSOLE is not set +CONFIG_EARLY_PRINTK=y +CONFIG_DEBUG_STACKOVERFLOW=y +CONFIG_DEBUG_STACK_USAGE=y +# CONFIG_4KSTACKS is not set +# CONFIG_SH_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +CONFIG_CRYPTO=y +CONFIG_CRYPTO_ALGAPI=y +CONFIG_CRYPTO_BLKCIPHER=y +CONFIG_CRYPTO_HASH=y +CONFIG_CRYPTO_MANAGER=y +CONFIG_CRYPTO_HMAC=y +# CONFIG_CRYPTO_XCBC is not set +# CONFIG_CRYPTO_NULL is not set +# CONFIG_CRYPTO_MD4 is not set +CONFIG_CRYPTO_MD5=y +# CONFIG_CRYPTO_SHA1 is not set +# CONFIG_CRYPTO_SHA256 is not set +# CONFIG_CRYPTO_SHA512 is not set +# CONFIG_CRYPTO_WP512 is not set +# CONFIG_CRYPTO_TGR192 is not set +# CONFIG_CRYPTO_GF128MUL is not set +CONFIG_CRYPTO_ECB=m +CONFIG_CRYPTO_CBC=y +CONFIG_CRYPTO_PCBC=m +# CONFIG_CRYPTO_LRW is not set +CONFIG_CRYPTO_DES=y +# CONFIG_CRYPTO_FCRYPT is not set +# CONFIG_CRYPTO_BLOWFISH is not set +# CONFIG_CRYPTO_TWOFISH is not set +# CONFIG_CRYPTO_SERPENT is not set +# CONFIG_CRYPTO_AES is not set +# CONFIG_CRYPTO_CAST5 is not set +# CONFIG_CRYPTO_CAST6 is not set +# CONFIG_CRYPTO_TEA is not set +# CONFIG_CRYPTO_ARC4 is not set +# CONFIG_CRYPTO_KHAZAD is not set +# CONFIG_CRYPTO_ANUBIS is not set +# CONFIG_CRYPTO_DEFLATE is not set +# CONFIG_CRYPTO_MICHAEL_MIC is not set +# CONFIG_CRYPTO_CRC32C is not set +# CONFIG_CRYPTO_CAMELLIA is not set +# CONFIG_CRYPTO_TEST is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +CONFIG_BITREVERSE=y +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y diff --git a/arch/sh/configs/se7705_defconfig b/arch/sh/configs/se7705_defconfig index 06ebd6e..87ae5c1 100644 --- a/arch/sh/configs/se7705_defconfig +++ b/arch/sh/configs/se7705_defconfig @@ -1,15 +1,21 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.18 -# Tue Oct 3 12:03:04 2006 +# Linux kernel version: 2.6.21-rc5 +# Thu Apr 26 09:16:31 2007 # CONFIG_SUPERH=y CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_BUG=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_IRQ_PROBE=y CONFIG_GENERIC_CALIBRATE_DELAY=y +# CONFIG_GENERIC_TIME is not set +CONFIG_STACKTRACE_SUPPORT=y +CONFIG_LOCKDEP_SUPPORT=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # @@ -33,7 +39,9 @@ CONFIG_LOCALVERSION_AUTO=y # CONFIG_UTS_NS is not set # CONFIG_AUDIT is not set # CONFIG_IKCONFIG is not set +CONFIG_SYSFS_DEPRECATED=y # CONFIG_RELAY is not set +CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE="" # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_SYSCTL=y @@ -91,27 +99,30 @@ CONFIG_DEFAULT_IOSCHED="anticipatory" CONFIG_SOLUTION_ENGINE=y CONFIG_SH_SOLUTION_ENGINE=y # CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7780_SOLUTION_ENGINE is not set # CONFIG_SH_7300_SOLUTION_ENGINE is not set # CONFIG_SH_7343_SOLUTION_ENGINE is not set # CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7722_SOLUTION_ENGINE is not set # CONFIG_SH_7751_SYSTEMH is not set # CONFIG_SH_HP6XX is not set -# CONFIG_SH_EC3104 is not set # CONFIG_SH_SATURN is not set # CONFIG_SH_DREAMCAST is not set -# CONFIG_SH_BIGSUR is not set # CONFIG_SH_MPC1211 is not set # CONFIG_SH_SH03 is not set # CONFIG_SH_SECUREEDGE5410 is not set # CONFIG_SH_HS7751RVOIP is not set # CONFIG_SH_7710VOIPGW is not set # CONFIG_SH_RTS7751R2D is not set -# CONFIG_SH_R7780RP is not set +# CONFIG_SH_HIGHLANDER is not set # CONFIG_SH_EDOSK7705 is not set # CONFIG_SH_SH4202_MICRODEV is not set # CONFIG_SH_LANDISK is not set # CONFIG_SH_TITAN is not set # CONFIG_SH_SHMIN is not set +# CONFIG_SH_7206_SOLUTION_ENGINE is not set +# CONFIG_SH_7619_SOLUTION_ENGINE is not set +# CONFIG_SH_LBOX_RE2 is not set # CONFIG_SH_UNKNOWN is not set # @@ -123,6 +134,12 @@ CONFIG_CPU_SH3=y # SH-2 Processor Support # # CONFIG_CPU_SUBTYPE_SH7604 is not set +# CONFIG_CPU_SUBTYPE_SH7619 is not set + +# +# SH-2A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7206 is not set # # SH-3 Processor Support @@ -134,6 +151,7 @@ CONFIG_CPU_SUBTYPE_SH7705=y # CONFIG_CPU_SUBTYPE_SH7708 is not set # CONFIG_CPU_SUBTYPE_SH7709 is not set # CONFIG_CPU_SUBTYPE_SH7710 is not set +# CONFIG_CPU_SUBTYPE_SH7712 is not set # # SH-4 Processor Support @@ -158,12 +176,14 @@ CONFIG_CPU_SUBTYPE_SH7705=y # # CONFIG_CPU_SUBTYPE_SH7770 is not set # CONFIG_CPU_SUBTYPE_SH7780 is not set +# CONFIG_CPU_SUBTYPE_SH7785 is not set # # SH4AL-DSP Processor Support # # CONFIG_CPU_SUBTYPE_SH73180 is not set # CONFIG_CPU_SUBTYPE_SH7343 is not set +# CONFIG_CPU_SUBTYPE_SH7722 is not set # # Memory management options @@ -173,6 +193,11 @@ CONFIG_PAGE_OFFSET=0x80000000 CONFIG_MEMORY_START=0x0c000000 CONFIG_MEMORY_SIZE=0x02000000 CONFIG_VSYSCALL=y +CONFIG_ARCH_FLATMEM_ENABLE=y +CONFIG_ARCH_POPULATES_NODE_MAP=y +CONFIG_PAGE_SIZE_4KB=y +# CONFIG_PAGE_SIZE_8KB is not set +# CONFIG_PAGE_SIZE_64KB is not set CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y # CONFIG_DISCONTIGMEM_MANUAL is not set @@ -182,6 +207,7 @@ CONFIG_FLAT_NODE_MEM_MAP=y # CONFIG_SPARSEMEM_STATIC is not set CONFIG_SPLIT_PTLOCK_CPUS=4 # CONFIG_RESOURCES_64BIT is not set +CONFIG_ZONE_DMA_FLAG=0 # # Cache configuration @@ -190,23 +216,31 @@ CONFIG_SH7705_CACHE_32KB=y # CONFIG_SH_DIRECT_MAPPED is not set # CONFIG_SH_WRITETHROUGH is not set # CONFIG_SH_OCRAM is not set -# CONFIG_CF_ENABLER is not set +CONFIG_CF_ENABLER=y +# CONFIG_CF_AREA5 is not set +CONFIG_CF_AREA6=y +# CONFIG_CF_AREA4 is not set +CONFIG_CF_BASE_ADDR=0xb8000000 # # Processor features # CONFIG_CPU_LITTLE_ENDIAN=y +# CONFIG_CPU_BIG_ENDIAN is not set # CONFIG_SH_FPU_EMU is not set # CONFIG_SH_DSP is not set # CONFIG_SH_ADC is not set CONFIG_CPU_HAS_INTEVT=y CONFIG_CPU_HAS_PINT_IRQ=y +CONFIG_CPU_HAS_IPR_IRQ=y CONFIG_CPU_HAS_SR_RB=y # -# Timer support +# Timer and clock configuration # CONFIG_SH_TMU=y +CONFIG_SH_TIMER_IRQ=16 +# CONFIG_NO_IDLE_HZ is not set CONFIG_SH_PCLK_FREQ=33333333 # @@ -223,13 +257,19 @@ CONFIG_SH_PCLK_FREQ=33333333 # Companion Chips # # CONFIG_HD6446X_SERIES is not set + +# +# Additional SuperH Device Drivers +# CONFIG_HEARTBEAT=y +# CONFIG_PUSH_SWITCH is not set # # Kernel features # # CONFIG_HZ_100 is not set CONFIG_HZ_250=y +# CONFIG_HZ_300 is not set # CONFIG_HZ_1000 is not set CONFIG_HZ=250 # CONFIG_KEXEC is not set @@ -287,6 +327,7 @@ CONFIG_UNIX=y CONFIG_XFRM=y # CONFIG_XFRM_USER is not set # CONFIG_XFRM_SUB_POLICY is not set +# CONFIG_XFRM_MIGRATE is not set # CONFIG_NET_KEY is not set CONFIG_INET=y # CONFIG_IP_MULTICAST is not set @@ -307,11 +348,13 @@ CONFIG_IP_PNP_RARP=y # CONFIG_INET_TUNNEL is not set CONFIG_INET_XFRM_MODE_TRANSPORT=y CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_INET_XFRM_MODE_BEET=y CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set CONFIG_TCP_CONG_CUBIC=y CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_TCP_MD5SIG is not set # CONFIG_IPV6 is not set # CONFIG_INET6_XFRM_TUNNEL is not set # CONFIG_INET6_TUNNEL is not set @@ -388,6 +431,7 @@ CONFIG_MTD_PARTITIONS=y # User Modules And Translation Layers # CONFIG_MTD_CHAR=y +CONFIG_MTD_BLKDEVS=y CONFIG_MTD_BLOCK=y # CONFIG_FTL is not set # CONFIG_NFTL is not set @@ -461,6 +505,7 @@ CONFIG_MTD_CFI_UTIL=y # # Plug and Play support # +# CONFIG_PNPACPI is not set # # Block devices @@ -472,11 +517,14 @@ CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=8192 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 -CONFIG_BLK_DEV_INITRD=y # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set # +# Misc devices +# + +# # ATA/ATAPI/MFM/RLL support # # CONFIG_IDE is not set @@ -649,17 +697,12 @@ CONFIG_HW_RANDOM=y # CONFIG_GEN_RTC is not set # CONFIG_DTLK is not set # CONFIG_R3964 is not set - -# -# Ftape, the floppy tape device driver -# # CONFIG_RAW_DRIVER is not set # # TPM devices # # CONFIG_TCG_TPM is not set -# CONFIG_TELCLOCK is not set # # I2C support @@ -675,6 +718,7 @@ CONFIG_HW_RANDOM=y # # Dallas's 1-wire bus # +# CONFIG_W1 is not set # # Hardware Monitoring support @@ -683,18 +727,19 @@ CONFIG_HWMON=y # CONFIG_HWMON_VID is not set # CONFIG_SENSORS_ABITUGURU is not set # CONFIG_SENSORS_F71805F is not set +# CONFIG_SENSORS_PC87427 is not set # CONFIG_SENSORS_VT1211 is not set # CONFIG_HWMON_DEBUG_CHIP is not set # -# Misc devices +# Multifunction device drivers # +# CONFIG_MFD_SM501 is not set # # Multimedia devices # # CONFIG_VIDEO_DEV is not set -CONFIG_VIDEO_V4L2=y # # Digital Video Broadcasting Devices @@ -704,7 +749,7 @@ CONFIG_VIDEO_V4L2=y # # Graphics support # -CONFIG_FIRMWARE_EDID=y +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set # CONFIG_FB is not set # @@ -713,6 +758,12 @@ CONFIG_FIRMWARE_EDID=y # CONFIG_SOUND is not set # +# HID Devices +# +CONFIG_HID=y +# CONFIG_HID_DEBUG is not set + +# # USB support # # CONFIG_USB_ARCH_HAS_HCD is not set @@ -773,16 +824,26 @@ CONFIG_FIRMWARE_EDID=y # # +# Auxiliary Display support +# + +# +# Virtualization +# + +# # File systems # CONFIG_EXT2_FS=y # CONFIG_EXT2_FS_XATTR is not set # CONFIG_EXT2_FS_XIP is not set # CONFIG_EXT3_FS is not set +# CONFIG_EXT4DEV_FS is not set # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_FS_POSIX_ACL is not set # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set CONFIG_INOTIFY=y @@ -828,7 +889,6 @@ CONFIG_RAMFS=y # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EFS_FS is not set -# CONFIG_JFFS_FS is not set CONFIG_JFFS2_FS=y CONFIG_JFFS2_FS_DEBUG=0 CONFIG_JFFS2_FS_WRITEBUFFER=y @@ -878,6 +938,10 @@ CONFIG_MSDOS_PARTITION=y # CONFIG_NLS is not set # +# Distributed Lock Manager +# + +# # Profiling support # # CONFIG_PROFILING is not set @@ -885,15 +949,18 @@ CONFIG_MSDOS_PARTITION=y # # Kernel hacking # +CONFIG_TRACE_IRQFLAGS_SUPPORT=y # CONFIG_PRINTK_TIME is not set CONFIG_ENABLE_MUST_CHECK=y # CONFIG_MAGIC_SYSRQ is not set # CONFIG_UNUSED_SYMBOLS is not set +# CONFIG_HEADERS_CHECK is not set # CONFIG_DEBUG_KERNEL is not set CONFIG_LOG_BUF_SHIFT=14 # CONFIG_DEBUG_BUGVERBOSE is not set # CONFIG_SH_STANDARD_BIOS is not set -# CONFIG_KGDB is not set +# CONFIG_EARLY_SCIF_CONSOLE is not set +# CONFIG_SH_KGDB is not set # # Security options @@ -908,6 +975,7 @@ CONFIG_LOG_BUF_SHIFT=14 # # Library routines # +CONFIG_BITREVERSE=y CONFIG_CRC_CCITT=y # CONFIG_CRC16 is not set CONFIG_CRC32=y @@ -915,3 +983,5 @@ CONFIG_CRC32=y CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y CONFIG_PLIST=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y diff --git a/arch/sh/configs/se7712_defconfig b/arch/sh/configs/se7712_defconfig new file mode 100644 index 0000000..a5e37db --- /dev/null +++ b/arch/sh/configs/se7712_defconfig @@ -0,0 +1,1088 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.21-rc4 +# Wed Mar 28 10:19:02 2007 +# +CONFIG_SUPERH=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +# CONFIG_GENERIC_TIME is not set +CONFIG_STACKTRACE_SUPPORT=y +CONFIG_LOCKDEP_SUPPORT=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +# CONFIG_LOCALVERSION_AUTO is not set +# CONFIG_SWAP is not set +CONFIG_SYSVIPC=y +# CONFIG_IPC_NS is not set +CONFIG_SYSVIPC_SYSCTL=y +CONFIG_POSIX_MQUEUE=y +CONFIG_BSD_PROCESS_ACCT=y +# CONFIG_BSD_PROCESS_ACCT_V3 is not set +# CONFIG_TASKSTATS is not set +# CONFIG_UTS_NS is not set +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +CONFIG_SYSFS_DEPRECATED=y +# CONFIG_RELAY is not set +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_SYSCTL=y +CONFIG_EMBEDDED=y +CONFIG_UID16=y +CONFIG_SYSCTL_SYSCALL=y +CONFIG_KALLSYMS=y +CONFIG_KALLSYMS_ALL=y +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +# CONFIG_BUG is not set +CONFIG_ELF_CORE=y +# CONFIG_BASE_FULL is not set +CONFIG_FUTEX=y +CONFIG_EPOLL=y +# CONFIG_SHMEM is not set +CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y +CONFIG_RT_MUTEXES=y +CONFIG_TINY_SHMEM=y +CONFIG_BASE_SMALL=1 +# CONFIG_SLOB is not set + +# +# Loadable module support +# +CONFIG_MODULES=y +# CONFIG_MODULE_UNLOAD is not set +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +# CONFIG_KMOD is not set + +# +# Block layer +# +CONFIG_BLOCK=y +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +# CONFIG_IOSCHED_AS is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +# CONFIG_DEFAULT_AS is not set +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +CONFIG_DEFAULT_NOOP=y +CONFIG_DEFAULT_IOSCHED="noop" + +# +# System type +# +CONFIG_SOLUTION_ENGINE=y +CONFIG_SH_SOLUTION_ENGINE=y +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_7343_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_7710VOIPGW is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_HIGHLANDER is not set +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_TITAN is not set +# CONFIG_SH_SHMIN is not set +# CONFIG_SH_7206_SOLUTION_ENGINE is not set +# CONFIG_SH_7619_SOLUTION_ENGINE is not set +# CONFIG_SH_LBOX_RE2 is not set +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH3=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set +# CONFIG_CPU_SUBTYPE_SH7619 is not set + +# +# SH-2A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7206 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7706 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set +# CONFIG_CPU_SUBTYPE_SH7710 is not set +CONFIG_CPU_SUBTYPE_SH7712=y + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +# CONFIG_CPU_SUBTYPE_SH7751 is not set +# CONFIG_CPU_SUBTYPE_SH7751R is not set +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7770 is not set +# CONFIG_CPU_SUBTYPE_SH7780 is not set +# CONFIG_CPU_SUBTYPE_SH7785 is not set + +# +# SH4AL-DSP Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7343 is not set +# CONFIG_CPU_SUBTYPE_SH7722 is not set + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_PAGE_OFFSET=0x80000000 +CONFIG_MEMORY_START=0x0c000000 +CONFIG_MEMORY_SIZE=0x02000000 +CONFIG_VSYSCALL=y +CONFIG_PAGE_SIZE_4KB=y +# CONFIG_PAGE_SIZE_8KB is not set +# CONFIG_PAGE_SIZE_64KB is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 +# CONFIG_RESOURCES_64BIT is not set +CONFIG_ZONE_DMA_FLAG=0 + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set +CONFIG_CF_ENABLER=y +# CONFIG_CF_AREA5 is not set +CONFIG_CF_AREA6=y +CONFIG_CF_BASE_ADDR=0xb8000000 + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +# CONFIG_CPU_BIG_ENDIAN is not set +# CONFIG_SH_FPU_EMU is not set +# CONFIG_SH_DSP is not set +# CONFIG_SH_ADC is not set +CONFIG_CPU_HAS_INTEVT=y +CONFIG_CPU_HAS_IPR_IRQ=y +CONFIG_CPU_HAS_SR_RB=y + +# +# Timer and clock configuration +# +CONFIG_SH_TMU=y +CONFIG_SH_TIMER_IRQ=16 +# CONFIG_NO_IDLE_HZ is not set +CONFIG_SH_PCLK_FREQ=33333333 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +# CONFIG_SH_DMA is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set + +# +# Additional SuperH Device Drivers +# +CONFIG_HEARTBEAT=y +# CONFIG_PUSH_SWITCH is not set + +# +# Kernel features +# +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y +# CONFIG_HZ_300 is not set +# CONFIG_HZ_1000 is not set +CONFIG_HZ=250 +# CONFIG_KEXEC is not set +# CONFIG_SMP is not set +# CONFIG_PREEMPT_NONE is not set +CONFIG_PREEMPT_VOLUNTARY=y +# CONFIG_PREEMPT is not set + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00800000 +# CONFIG_UBC_WAKEUP is not set +CONFIG_CMDLINE_BOOL=y +CONFIG_CMDLINE="console=ttySC0,115200 root=/dev/sda1" + +# +# Bus options +# +# CONFIG_PCI is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options (EXPERIMENTAL) +# +# CONFIG_PM is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +CONFIG_PACKET_MMAP=y +CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set +# CONFIG_XFRM_SUB_POLICY is not set +# CONFIG_XFRM_MIGRATE is not set +CONFIG_NET_KEY=y +# CONFIG_NET_KEY_MIGRATE is not set +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_ASK_IP_FIB_HASH=y +# CONFIG_IP_FIB_TRIE is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_MULTIPLE_TABLES=y +CONFIG_IP_ROUTE_MULTIPATH=y +# CONFIG_IP_ROUTE_MULTIPATH_CACHED is not set +CONFIG_IP_ROUTE_VERBOSE=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +CONFIG_IP_MROUTE=y +CONFIG_IP_PIMSM_V1=y +CONFIG_IP_PIMSM_V2=y +# CONFIG_ARPD is not set +CONFIG_SYN_COOKIES=y +CONFIG_INET_AH=y +CONFIG_INET_ESP=y +CONFIG_INET_IPCOMP=y +CONFIG_INET_XFRM_TUNNEL=y +CONFIG_INET_TUNNEL=y +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_INET_XFRM_MODE_BEET=y +# CONFIG_INET_DIAG is not set +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_TCP_MD5SIG is not set +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +CONFIG_NET_SCHED=y +CONFIG_NET_SCH_FIFO=y +CONFIG_NET_SCH_CLK_JIFFIES=y +# CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set +# CONFIG_NET_SCH_CLK_CPU is not set + +# +# Queueing/Scheduling +# +CONFIG_NET_SCH_CBQ=y +CONFIG_NET_SCH_HTB=y +CONFIG_NET_SCH_HFSC=y +CONFIG_NET_SCH_PRIO=y +CONFIG_NET_SCH_RED=y +CONFIG_NET_SCH_SFQ=y +CONFIG_NET_SCH_TEQL=y +CONFIG_NET_SCH_TBF=y +CONFIG_NET_SCH_GRED=y +CONFIG_NET_SCH_DSMARK=y +CONFIG_NET_SCH_NETEM=y +CONFIG_NET_SCH_INGRESS=y + +# +# Classification +# +CONFIG_NET_CLS=y +# CONFIG_NET_CLS_BASIC is not set +CONFIG_NET_CLS_TCINDEX=y +CONFIG_NET_CLS_ROUTE4=y +CONFIG_NET_CLS_ROUTE=y +CONFIG_NET_CLS_FW=y +# CONFIG_NET_CLS_U32 is not set +# CONFIG_NET_CLS_RSVP is not set +# CONFIG_NET_CLS_RSVP6 is not set +# CONFIG_NET_EMATCH is not set +# CONFIG_NET_CLS_ACT is not set +# CONFIG_NET_CLS_POLICE is not set +CONFIG_NET_CLS_IND=y +CONFIG_NET_ESTIMATOR=y + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set +CONFIG_FIB_RULES=y + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=y +# CONFIG_DEBUG_DRIVER is not set +# CONFIG_DEBUG_DEVRES is not set +# CONFIG_SYS_HYPERVISOR is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +CONFIG_MTD=y +# CONFIG_MTD_DEBUG is not set +CONFIG_MTD_CONCAT=y +CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_REDBOOT_PARTS is not set +# CONFIG_MTD_CMDLINE_PARTS is not set + +# +# User Modules And Translation Layers +# +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLKDEVS=y +CONFIG_MTD_BLOCK=y +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set +# CONFIG_SSFDC is not set + +# +# RAM/ROM/Flash chip drivers +# +CONFIG_MTD_CFI=y +# CONFIG_MTD_JEDECPROBE is not set +CONFIG_MTD_GEN_PROBE=y +# CONFIG_MTD_CFI_ADV_OPTIONS is not set +CONFIG_MTD_MAP_BANK_WIDTH_1=y +CONFIG_MTD_MAP_BANK_WIDTH_2=y +CONFIG_MTD_MAP_BANK_WIDTH_4=y +# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set +CONFIG_MTD_CFI_I1=y +CONFIG_MTD_CFI_I2=y +# CONFIG_MTD_CFI_I4 is not set +# CONFIG_MTD_CFI_I8 is not set +# CONFIG_MTD_CFI_INTELEXT is not set +CONFIG_MTD_CFI_AMDSTD=y +# CONFIG_MTD_CFI_STAA is not set +CONFIG_MTD_CFI_UTIL=y +# CONFIG_MTD_RAM is not set +# CONFIG_MTD_ROM is not set +# CONFIG_MTD_ABSENT is not set +# CONFIG_MTD_OBSOLETE_CHIPS is not set + +# +# Mapping drivers for chip access +# +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +# CONFIG_MTD_PHYSMAP is not set +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD is not set + +# +# Disk-On-Chip Device Drivers +# +# CONFIG_MTD_DOC2000 is not set +# CONFIG_MTD_DOC2001 is not set +# CONFIG_MTD_DOC2001PLUS is not set + +# +# NAND Flash Device Drivers +# +# CONFIG_MTD_NAND is not set + +# +# OneNAND Flash Device Drivers +# +# CONFIG_MTD_ONENAND is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# +# CONFIG_PNPACPI is not set + +# +# Block devices +# +# CONFIG_BLK_DEV_COW_COMMON is not set +# CONFIG_BLK_DEV_LOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_RAM is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# Misc devices +# + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=y +# CONFIG_SCSI_TGT is not set +# CONFIG_SCSI_NETLINK is not set +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=y +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +# CONFIG_BLK_DEV_SR is not set +# CONFIG_CHR_DEV_SG is not set +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set +# CONFIG_SCSI_SCAN_ASYNC is not set + +# +# SCSI Transports +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set +# CONFIG_SCSI_SAS_LIBSAS is not set + +# +# SCSI low-level drivers +# +# CONFIG_ISCSI_TCP is not set +# CONFIG_SCSI_DEBUG is not set + +# +# Serial ATA (prod) and Parallel ATA (experimental) drivers +# +CONFIG_ATA=y +# CONFIG_ATA_NONSTANDARD is not set +CONFIG_PATA_PLATFORM=y + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set + +# +# IEEE 1394 (FireWire) support +# + +# +# I2O device support +# + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# PHY device support +# + +# +# Ethernet (10 or 100Mbit) +# +# CONFIG_NET_ETHERNET is not set + +# +# Ethernet (1000 Mbit) +# + +# +# Ethernet (10000 Mbit) +# + +# +# Token Ring devices +# + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +# CONFIG_INPUT is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_NR_UARTS=2 +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +CONFIG_UNIX98_PTYS=y +# CONFIG_LEGACY_PTYS is not set + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +CONFIG_HW_RANDOM=m +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +# CONFIG_HWMON is not set +# CONFIG_HWMON_VID is not set + +# +# Multifunction device drivers +# +# CONFIG_MFD_SM501 is not set + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set +# CONFIG_FB is not set + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# USB support +# +# CONFIG_USB_ARCH_HAS_HCD is not set +# CONFIG_USB_ARCH_HAS_OHCI is not set +# CONFIG_USB_ARCH_HAS_EHCI is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +CONFIG_NEW_LEDS=y +CONFIG_LEDS_CLASS=y + +# +# LED drivers +# + +# +# LED Triggers +# +CONFIG_LEDS_TRIGGERS=y +# CONFIG_LEDS_TRIGGER_TIMER is not set +# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set + +# +# InfiniBand support +# + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +# CONFIG_RTC_CLASS is not set + +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + +# +# Auxiliary Display support +# + +# +# Virtualization +# + +# +# File systems +# +CONFIG_EXT2_FS=y +CONFIG_EXT2_FS_XATTR=y +CONFIG_EXT2_FS_POSIX_ACL=y +CONFIG_EXT2_FS_SECURITY=y +# CONFIG_EXT2_FS_XIP is not set +# CONFIG_EXT3_FS is not set +# CONFIG_EXT4DEV_FS is not set +CONFIG_FS_MBCACHE=y +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +CONFIG_FS_POSIX_ACL=y +# CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +# CONFIG_INOTIFY is not set +# CONFIG_QUOTA is not set +# CONFIG_DNOTIFY is not set +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +# CONFIG_MSDOS_FS is not set +# CONFIG_VFAT_FS is not set +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +# CONFIG_PROC_KCORE is not set +CONFIG_PROC_SYSCTL=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_TMPFS_POSIX_ACL is not set +# CONFIG_HUGETLBFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +CONFIG_JFFS2_FS=y +CONFIG_JFFS2_FS_DEBUG=0 +CONFIG_JFFS2_FS_WRITEBUFFER=y +# CONFIG_JFFS2_SUMMARY is not set +# CONFIG_JFFS2_FS_XATTR is not set +# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set +CONFIG_JFFS2_ZLIB=y +CONFIG_JFFS2_RTIME=y +# CONFIG_JFFS2_RUBIN is not set +CONFIG_CRAMFS=y +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +# CONFIG_NFS_FS is not set +# CONFIG_NFSD is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +# CONFIG_NLS is not set + +# +# Distributed Lock Manager +# +# CONFIG_DLM is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +CONFIG_TRACE_IRQFLAGS_SUPPORT=y +# CONFIG_PRINTK_TIME is not set +CONFIG_ENABLE_MUST_CHECK=y +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_UNUSED_SYMBOLS is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_HEADERS_CHECK is not set +CONFIG_DEBUG_KERNEL=y +# CONFIG_DEBUG_SHIRQ is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_DETECT_SOFTLOCKUP is not set +# CONFIG_SCHEDSTATS is not set +# CONFIG_TIMER_STATS is not set +# CONFIG_DEBUG_SLAB is not set +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set +# CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set +# CONFIG_DEBUG_KOBJECT is not set +CONFIG_DEBUG_INFO=y +# CONFIG_DEBUG_VM is not set +# CONFIG_DEBUG_LIST is not set +CONFIG_FRAME_POINTER=y +# CONFIG_FORCED_INLINING is not set +# CONFIG_RCU_TORTURE_TEST is not set +# CONFIG_FAULT_INJECTION is not set +# CONFIG_SH_STANDARD_BIOS is not set +# CONFIG_EARLY_SCIF_CONSOLE is not set +# CONFIG_DEBUG_STACKOVERFLOW is not set +# CONFIG_DEBUG_STACK_USAGE is not set +# CONFIG_4KSTACKS is not set +# CONFIG_SH_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +CONFIG_CRYPTO=y +CONFIG_CRYPTO_ALGAPI=y +CONFIG_CRYPTO_BLKCIPHER=y +CONFIG_CRYPTO_HASH=y +CONFIG_CRYPTO_MANAGER=y +CONFIG_CRYPTO_HMAC=y +# CONFIG_CRYPTO_XCBC is not set +# CONFIG_CRYPTO_NULL is not set +# CONFIG_CRYPTO_MD4 is not set +CONFIG_CRYPTO_MD5=y +CONFIG_CRYPTO_SHA1=y +# CONFIG_CRYPTO_SHA256 is not set +# CONFIG_CRYPTO_SHA512 is not set +# CONFIG_CRYPTO_WP512 is not set +# CONFIG_CRYPTO_TGR192 is not set +# CONFIG_CRYPTO_GF128MUL is not set +CONFIG_CRYPTO_ECB=m +CONFIG_CRYPTO_CBC=y +CONFIG_CRYPTO_PCBC=m +# CONFIG_CRYPTO_LRW is not set +CONFIG_CRYPTO_DES=y +# CONFIG_CRYPTO_FCRYPT is not set +# CONFIG_CRYPTO_BLOWFISH is not set +# CONFIG_CRYPTO_TWOFISH is not set +# CONFIG_CRYPTO_SERPENT is not set +# CONFIG_CRYPTO_AES is not set +# CONFIG_CRYPTO_CAST5 is not set +# CONFIG_CRYPTO_CAST6 is not set +# CONFIG_CRYPTO_TEA is not set +# CONFIG_CRYPTO_ARC4 is not set +# CONFIG_CRYPTO_KHAZAD is not set +# CONFIG_CRYPTO_ANUBIS is not set +CONFIG_CRYPTO_DEFLATE=y +# CONFIG_CRYPTO_MICHAEL_MIC is not set +# CONFIG_CRYPTO_CRC32C is not set +# CONFIG_CRYPTO_CAMELLIA is not set +# CONFIG_CRYPTO_TEST is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +CONFIG_BITREVERSE=y +CONFIG_CRC_CCITT=y +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y +CONFIG_ZLIB_DEFLATE=y +CONFIG_PLIST=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y diff --git a/arch/sh/configs/se7722_defconfig b/arch/sh/configs/se7722_defconfig new file mode 100644 index 0000000..ca4c663 --- /dev/null +++ b/arch/sh/configs/se7722_defconfig @@ -0,0 +1,980 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.21-rc7 +# Fri Apr 27 16:30:30 2007 +# +CONFIG_SUPERH=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_BUG=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +# CONFIG_GENERIC_TIME is not set +CONFIG_STACKTRACE_SUPPORT=y +CONFIG_LOCKDEP_SUPPORT=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_LOCK_KERNEL=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +# CONFIG_IPC_NS is not set +CONFIG_SYSVIPC_SYSCTL=y +# CONFIG_POSIX_MQUEUE is not set +CONFIG_BSD_PROCESS_ACCT=y +# CONFIG_BSD_PROCESS_ACCT_V3 is not set +# CONFIG_TASKSTATS is not set +# CONFIG_UTS_NS is not set +# CONFIG_AUDIT is not set +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +# CONFIG_SYSFS_DEPRECATED is not set +# CONFIG_RELAY is not set +CONFIG_BLK_DEV_INITRD=y +CONFIG_INITRAMFS_SOURCE="" +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_SYSCTL=y +CONFIG_EMBEDDED=y +CONFIG_UID16=y +CONFIG_SYSCTL_SYSCALL=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_EPOLL=y +CONFIG_SHMEM=y +CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y +CONFIG_RT_MUTEXES=y +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 +# CONFIG_SLOB is not set + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# Block layer +# +CONFIG_BLOCK=y +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +# CONFIG_IOSCHED_AS is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +# CONFIG_DEFAULT_AS is not set +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +CONFIG_DEFAULT_NOOP=y +CONFIG_DEFAULT_IOSCHED="noop" + +# +# System type +# +CONFIG_SOLUTION_ENGINE=y +# CONFIG_SH_SOLUTION_ENGINE is not set +CONFIG_SH_7722_SOLUTION_ENGINE=y +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7780_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_7343_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_7710VOIPGW is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_HIGHLANDER is not set +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_TITAN is not set +# CONFIG_SH_SHMIN is not set +# CONFIG_SH_7206_SOLUTION_ENGINE is not set +# CONFIG_SH_7619_SOLUTION_ENGINE is not set +# CONFIG_SH_LBOX_RE2 is not set +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH4=y +CONFIG_CPU_SH4A=y +CONFIG_CPU_SH4AL_DSP=y +CONFIG_CPU_SHX2=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set +# CONFIG_CPU_SUBTYPE_SH7619 is not set + +# +# SH-2A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7206 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7706 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set +# CONFIG_CPU_SUBTYPE_SH7710 is not set +# CONFIG_CPU_SUBTYPE_SH7712 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +# CONFIG_CPU_SUBTYPE_SH7751 is not set +# CONFIG_CPU_SUBTYPE_SH7751R is not set +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7770 is not set +# CONFIG_CPU_SUBTYPE_SH7780 is not set +# CONFIG_CPU_SUBTYPE_SH7785 is not set + +# +# SH4AL-DSP Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7343 is not set +CONFIG_CPU_SUBTYPE_SH7722=y + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_PAGE_OFFSET=0x80000000 +CONFIG_MEMORY_START=0x0c000000 +CONFIG_MEMORY_SIZE=0x04000000 +# CONFIG_32BIT is not set +# CONFIG_X2TLB is not set +CONFIG_VSYSCALL=y +CONFIG_ARCH_FLATMEM_ENABLE=y +CONFIG_ARCH_POPULATES_NODE_MAP=y +CONFIG_PAGE_SIZE_4KB=y +# CONFIG_PAGE_SIZE_8KB is not set +# CONFIG_PAGE_SIZE_64KB is not set +CONFIG_HUGETLB_PAGE_SIZE_64K=y +# CONFIG_HUGETLB_PAGE_SIZE_256K is not set +# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set +# CONFIG_HUGETLB_PAGE_SIZE_4MB is not set +# CONFIG_HUGETLB_PAGE_SIZE_64MB is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 +# CONFIG_RESOURCES_64BIT is not set +CONFIG_ZONE_DMA_FLAG=0 + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set +CONFIG_CF_ENABLER=y +# CONFIG_CF_AREA5 is not set +CONFIG_CF_AREA6=y +CONFIG_CF_BASE_ADDR=0xb8000000 + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +# CONFIG_CPU_BIG_ENDIAN is not set +# CONFIG_SH_FPU is not set +# CONFIG_SH_FPU_EMU is not set +CONFIG_SH_DSP=y +CONFIG_SH_STORE_QUEUES=y +CONFIG_CPU_HAS_INTEVT=y +CONFIG_CPU_HAS_IPR_IRQ=y +CONFIG_CPU_HAS_SR_RB=y +CONFIG_CPU_HAS_PTEA=y + +# +# Timer and clock configuration +# +CONFIG_SH_TMU=y +CONFIG_SH_TIMER_IRQ=16 +CONFIG_NO_IDLE_HZ=y +CONFIG_SH_PCLK_FREQ=33333333 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +# CONFIG_SH_DMA is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set + +# +# Additional SuperH Device Drivers +# +CONFIG_HEARTBEAT=y +# CONFIG_PUSH_SWITCH is not set + +# +# Kernel features +# +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y +# CONFIG_HZ_300 is not set +# CONFIG_HZ_1000 is not set +CONFIG_HZ=250 +CONFIG_KEXEC=y +# CONFIG_CRASH_DUMP is not set +# CONFIG_SMP is not set +# CONFIG_PREEMPT_NONE is not set +# CONFIG_PREEMPT_VOLUNTARY is not set +CONFIG_PREEMPT=y +CONFIG_PREEMPT_BKL=y + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00800000 +# CONFIG_UBC_WAKEUP is not set +# CONFIG_CMDLINE_BOOL is not set + +# +# Bus options +# +# CONFIG_PCI is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options (EXPERIMENTAL) +# +# CONFIG_PM is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +CONFIG_PACKET_MMAP=y +CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set +# CONFIG_XFRM_SUB_POLICY is not set +# CONFIG_XFRM_MIGRATE is not set +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +# CONFIG_IP_PNP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +# CONFIG_SYN_COOKIES is not set +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_INET_XFRM_MODE_BEET=y +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_TCP_MD5SIG is not set +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +# CONFIG_FW_LOADER is not set +# CONFIG_SYS_HYPERVISOR is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +# CONFIG_MTD is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# +# CONFIG_PNPACPI is not set + +# +# Block devices +# +# CONFIG_BLK_DEV_COW_COMMON is not set +# CONFIG_BLK_DEV_LOOP is not set +# CONFIG_BLK_DEV_NBD is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# Misc devices +# + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=y +# CONFIG_SCSI_TGT is not set +# CONFIG_SCSI_NETLINK is not set +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=y +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +# CONFIG_BLK_DEV_SR is not set +# CONFIG_CHR_DEV_SG is not set +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set +# CONFIG_SCSI_SCAN_ASYNC is not set + +# +# SCSI Transports +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set +# CONFIG_SCSI_SAS_LIBSAS is not set + +# +# SCSI low-level drivers +# +# CONFIG_ISCSI_TCP is not set +# CONFIG_SCSI_DEBUG is not set + +# +# Serial ATA (prod) and Parallel ATA (experimental) drivers +# +CONFIG_ATA=y +# CONFIG_ATA_NONSTANDARD is not set +CONFIG_PATA_PLATFORM=y + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set + +# +# IEEE 1394 (FireWire) support +# + +# +# I2O device support +# + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_STNIC is not set +CONFIG_SMC91X=y + +# +# Ethernet (1000 Mbit) +# + +# +# Ethernet (10000 Mbit) +# + +# +# Token Ring devices +# + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y +# CONFIG_INPUT_FF_MEMLESS is not set + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +CONFIG_INPUT_KEYBOARD=y +CONFIG_KEYBOARD_ATKBD=y +# CONFIG_KEYBOARD_SUNKBD is not set +# CONFIG_KEYBOARD_LKKBD is not set +# CONFIG_KEYBOARD_XTKBD is not set +# CONFIG_KEYBOARD_NEWTON is not set +# CONFIG_KEYBOARD_STOWAWAY is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +CONFIG_SERIO=y +# CONFIG_SERIO_I8042 is not set +# CONFIG_SERIO_SERPORT is not set +CONFIG_SERIO_LIBPS2=y +# CONFIG_SERIO_RAW is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_NR_UARTS=2 +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +CONFIG_HW_RANDOM=y +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_SENSORS_ABITUGURU is not set +# CONFIG_SENSORS_F71805F is not set +# CONFIG_SENSORS_PC87427 is not set +# CONFIG_SENSORS_VT1211 is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Multifunction device drivers +# +# CONFIG_MFD_SM501 is not set + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set +# CONFIG_FB is not set + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# HID Devices +# +CONFIG_HID=y +# CONFIG_HID_DEBUG is not set + +# +# USB support +# +# CONFIG_USB_ARCH_HAS_HCD is not set +# CONFIG_USB_ARCH_HAS_OHCI is not set +# CONFIG_USB_ARCH_HAS_EHCI is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +CONFIG_RTC_LIB=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_HCTOSYS=y +CONFIG_RTC_HCTOSYS_DEVICE="rtc0" +# CONFIG_RTC_DEBUG is not set + +# +# RTC interfaces +# +CONFIG_RTC_INTF_SYSFS=y +CONFIG_RTC_INTF_PROC=y +CONFIG_RTC_INTF_DEV=y +# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set + +# +# RTC drivers +# +# CONFIG_RTC_DRV_DS1553 is not set +# CONFIG_RTC_DRV_DS1742 is not set +# CONFIG_RTC_DRV_M48T86 is not set +CONFIG_RTC_DRV_SH=y +# CONFIG_RTC_DRV_TEST is not set +# CONFIG_RTC_DRV_V3020 is not set + +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + +# +# Auxiliary Display support +# + +# +# Virtualization +# + +# +# File systems +# +CONFIG_EXT2_FS=y +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_XATTR=y +# CONFIG_EXT3_FS_POSIX_ACL is not set +# CONFIG_EXT3_FS_SECURITY is not set +# CONFIG_EXT4DEV_FS is not set +CONFIG_JBD=y +# CONFIG_JBD_DEBUG is not set +CONFIG_FS_MBCACHE=y +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +# CONFIG_MSDOS_FS is not set +# CONFIG_VFAT_FS is not set +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_KCORE=y +CONFIG_PROC_SYSCTL=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_TMPFS_POSIX_ACL is not set +CONFIG_HUGETLBFS=y +CONFIG_HUGETLB_PAGE=y +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +# CONFIG_NFS_FS is not set +# CONFIG_NFSD is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +# CONFIG_NLS is not set + +# +# Distributed Lock Manager +# +# CONFIG_DLM is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +CONFIG_TRACE_IRQFLAGS_SUPPORT=y +# CONFIG_PRINTK_TIME is not set +# CONFIG_ENABLE_MUST_CHECK is not set +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_UNUSED_SYMBOLS is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_HEADERS_CHECK is not set +# CONFIG_DEBUG_KERNEL is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_DEBUG_BUGVERBOSE is not set +# CONFIG_SH_STANDARD_BIOS is not set +# CONFIG_EARLY_SCIF_CONSOLE is not set +# CONFIG_SH_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Library routines +# +CONFIG_BITREVERSE=y +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_PLIST=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y diff --git a/arch/sh/configs/se7780_defconfig b/arch/sh/configs/se7780_defconfig new file mode 100644 index 0000000..538661e --- /dev/null +++ b/arch/sh/configs/se7780_defconfig @@ -0,0 +1,1309 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.21-rc3 +# Thu Mar 15 14:06:20 2007 +# +CONFIG_SUPERH=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_BUG=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +# CONFIG_GENERIC_TIME is not set +CONFIG_STACKTRACE_SUPPORT=y +CONFIG_LOCKDEP_SUPPORT=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" + +# +# Code maturity level options +# +# CONFIG_EXPERIMENTAL is not set +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +# CONFIG_SWAP is not set +CONFIG_SYSVIPC=y +# CONFIG_IPC_NS is not set +CONFIG_SYSVIPC_SYSCTL=y +# CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set +# CONFIG_UTS_NS is not set +# CONFIG_AUDIT is not set +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_SYSFS_DEPRECATED=y +# CONFIG_RELAY is not set +# CONFIG_BLK_DEV_INITRD is not set +CONFIG_SYSCTL=y +CONFIG_EMBEDDED=y +CONFIG_UID16=y +CONFIG_SYSCTL_SYSCALL=y +# CONFIG_KALLSYMS is not set +# CONFIG_HOTPLUG is not set +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +# CONFIG_EPOLL is not set +CONFIG_SHMEM=y +CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y +CONFIG_RT_MUTEXES=y +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 +# CONFIG_SLOB is not set + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# Block layer +# +CONFIG_BLOCK=y +# CONFIG_LBD is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +# CONFIG_IOSCHED_AS is not set +CONFIG_IOSCHED_DEADLINE=y +# CONFIG_IOSCHED_CFQ is not set +# CONFIG_DEFAULT_AS is not set +CONFIG_DEFAULT_DEADLINE=y +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="deadline" + +# +# System type +# +CONFIG_SOLUTION_ENGINE=y +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +CONFIG_SH_7780_SOLUTION_ENGINE=y +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_7343_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_7710VOIPGW is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_HIGHLANDER is not set +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_TITAN is not set +# CONFIG_SH_SHMIN is not set +# CONFIG_SH_7206_SOLUTION_ENGINE is not set +# CONFIG_SH_7619_SOLUTION_ENGINE is not set +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH4=y +CONFIG_CPU_SH4A=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set +# CONFIG_CPU_SUBTYPE_SH7619 is not set + +# +# SH-2A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7206 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7706 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set +# CONFIG_CPU_SUBTYPE_SH7710 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +# CONFIG_CPU_SUBTYPE_SH7751 is not set +# CONFIG_CPU_SUBTYPE_SH7751R is not set +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7770 is not set +CONFIG_CPU_SUBTYPE_SH7780=y +# CONFIG_CPU_SUBTYPE_SH7785 is not set + +# +# SH4AL-DSP Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7343 is not set +# CONFIG_CPU_SUBTYPE_SH7722 is not set + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_PAGE_OFFSET=0x80000000 +CONFIG_MEMORY_START=0x08000000 +CONFIG_MEMORY_SIZE=0x08000000 +CONFIG_32BIT=y +CONFIG_VSYSCALL=y +CONFIG_PAGE_SIZE_4KB=y +# CONFIG_PAGE_SIZE_8KB is not set +# CONFIG_PAGE_SIZE_64KB is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 +# CONFIG_RESOURCES_64BIT is not set +CONFIG_ZONE_DMA_FLAG=0 + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +# CONFIG_CPU_BIG_ENDIAN is not set +CONFIG_SH_FPU=y +# CONFIG_SH_DSP is not set +# CONFIG_SH_STORE_QUEUES is not set +CONFIG_CPU_HAS_INTEVT=y +CONFIG_CPU_HAS_INTC2_IRQ=y +CONFIG_CPU_HAS_SR_RB=y + +# +# Timer and clock configuration +# +CONFIG_SH_TMU=y +CONFIG_SH_TIMER_IRQ=28 +# CONFIG_NO_IDLE_HZ is not set +CONFIG_SH_PCLK_FREQ=33333333 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +# CONFIG_SH_DMA is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set + +# +# Additional SuperH Device Drivers +# +CONFIG_HEARTBEAT=y +# CONFIG_PUSH_SWITCH is not set + +# +# Kernel features +# +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y +# CONFIG_HZ_300 is not set +# CONFIG_HZ_1000 is not set +CONFIG_HZ=250 +# CONFIG_SMP is not set +CONFIG_PREEMPT_NONE=y +# CONFIG_PREEMPT_VOLUNTARY is not set +# CONFIG_PREEMPT is not set + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00810000 +# CONFIG_UBC_WAKEUP is not set +# CONFIG_CMDLINE_BOOL is not set + +# +# Bus options +# +CONFIG_PCI=y +CONFIG_SH_PCIDMA_NONCOHERENT=y +CONFIG_PCI_AUTO=y +CONFIG_PCI_AUTO_UPDATE_RESOURCES=y + +# +# PCCARD (PCMCIA/CardBus) support +# + +# +# PCI Hotplug Support +# + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set +# CONFIG_NET_KEY is not set +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_PNP=y +# CONFIG_IP_PNP_DHCP is not set +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_IP_MROUTE is not set +# CONFIG_SYN_COOKIES is not set +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_INET_XFRM_MODE_BEET=y +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" +CONFIG_IPV6=y +# CONFIG_IPV6_PRIVACY is not set +# CONFIG_IPV6_ROUTER_PREF is not set +# CONFIG_INET6_AH is not set +# CONFIG_INET6_ESP is not set +# CONFIG_INET6_IPCOMP is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET6_XFRM_MODE_TUNNEL is not set +# CONFIG_INET6_XFRM_MODE_BEET is not set +# CONFIG_IPV6_SIT is not set +# CONFIG_IPV6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETFILTER is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +# CONFIG_PREVENT_FIRMWARE_BUILD is not set +# CONFIG_SYS_HYPERVISOR is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +CONFIG_MTD=y +# CONFIG_MTD_DEBUG is not set +# CONFIG_MTD_CONCAT is not set +CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_REDBOOT_PARTS is not set +# CONFIG_MTD_CMDLINE_PARTS is not set + +# +# User Modules And Translation Layers +# +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLKDEVS=y +CONFIG_MTD_BLOCK=y +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set +# CONFIG_SSFDC is not set + +# +# RAM/ROM/Flash chip drivers +# +CONFIG_MTD_CFI=y +# CONFIG_MTD_JEDECPROBE is not set +CONFIG_MTD_GEN_PROBE=y +CONFIG_MTD_CFI_ADV_OPTIONS=y +CONFIG_MTD_CFI_NOSWAP=y +# CONFIG_MTD_CFI_BE_BYTE_SWAP is not set +# CONFIG_MTD_CFI_LE_BYTE_SWAP is not set +CONFIG_MTD_CFI_GEOMETRY=y +# CONFIG_MTD_MAP_BANK_WIDTH_1 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_2 is not set +CONFIG_MTD_MAP_BANK_WIDTH_4=y +# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set +# CONFIG_MTD_CFI_I1 is not set +CONFIG_MTD_CFI_I2=y +# CONFIG_MTD_CFI_I4 is not set +# CONFIG_MTD_CFI_I8 is not set +# CONFIG_MTD_OTP is not set +# CONFIG_MTD_CFI_INTELEXT is not set +CONFIG_MTD_CFI_AMDSTD=y +# CONFIG_MTD_CFI_STAA is not set +CONFIG_MTD_CFI_UTIL=y +# CONFIG_MTD_RAM is not set +CONFIG_MTD_ROM=y +# CONFIG_MTD_ABSENT is not set +# CONFIG_MTD_OBSOLETE_CHIPS is not set + +# +# Mapping drivers for chip access +# +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +# CONFIG_MTD_PHYSMAP is not set +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_PMC551 is not set +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD is not set + +# +# Disk-On-Chip Device Drivers +# +# CONFIG_MTD_DOC2000 is not set +# CONFIG_MTD_DOC2001 is not set +# CONFIG_MTD_DOC2001PLUS is not set + +# +# NAND Flash Device Drivers +# +# CONFIG_MTD_NAND is not set + +# +# OneNAND Flash Device Drivers +# +# CONFIG_MTD_ONENAND is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# +# CONFIG_PNPACPI is not set + +# +# Block devices +# +# CONFIG_BLK_CPQ_DA is not set +# CONFIG_BLK_CPQ_CISS_DA is not set +# CONFIG_BLK_DEV_DAC960 is not set +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=y +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_SX8 is not set +# CONFIG_BLK_DEV_UB is not set +# CONFIG_BLK_DEV_RAM is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# Misc devices +# +# CONFIG_SGI_IOC4 is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=y +# CONFIG_SCSI_NETLINK is not set +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=y +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +# CONFIG_BLK_DEV_SR is not set +CONFIG_CHR_DEV_SG=y +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set +# CONFIG_SCSI_SCAN_ASYNC is not set + +# +# SCSI Transports +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set +# CONFIG_SCSI_SAS_LIBSAS is not set + +# +# SCSI low-level drivers +# +# CONFIG_ISCSI_TCP is not set +# CONFIG_BLK_DEV_3W_XXXX_RAID is not set +# CONFIG_SCSI_3W_9XXX is not set +# CONFIG_SCSI_ACARD is not set +# CONFIG_SCSI_AACRAID is not set +# CONFIG_SCSI_AIC7XXX is not set +# CONFIG_SCSI_AIC7XXX_OLD is not set +# CONFIG_SCSI_AIC79XX is not set +# CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_DPT_I2O is not set +# CONFIG_SCSI_ARCMSR is not set +# CONFIG_MEGARAID_NEWGEN is not set +# CONFIG_MEGARAID_LEGACY is not set +# CONFIG_MEGARAID_SAS is not set +# CONFIG_SCSI_HPTIOP is not set +# CONFIG_SCSI_DMX3191D is not set +# CONFIG_SCSI_FUTURE_DOMAIN is not set +# CONFIG_SCSI_IPS is not set +# CONFIG_SCSI_INITIO is not set +# CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_STEX is not set +# CONFIG_SCSI_SYM53C8XX_2 is not set +# CONFIG_SCSI_IPR is not set +# CONFIG_SCSI_QLOGIC_1280 is not set +# CONFIG_SCSI_QLA_FC is not set +# CONFIG_SCSI_QLA_ISCSI is not set +# CONFIG_SCSI_LPFC is not set +# CONFIG_SCSI_DC390T is not set +# CONFIG_SCSI_NSP32 is not set +# CONFIG_SCSI_DEBUG is not set +# CONFIG_SCSI_SRP is not set + +# +# Serial ATA (prod) and Parallel ATA (experimental) drivers +# +CONFIG_ATA=y +# CONFIG_ATA_NONSTANDARD is not set +# CONFIG_SATA_AHCI is not set +# CONFIG_SATA_SVW is not set +# CONFIG_ATA_PIIX is not set +# CONFIG_SATA_NV is not set +# CONFIG_PDC_ADMA is not set +# CONFIG_SATA_QSTOR is not set +# CONFIG_SATA_PROMISE is not set +CONFIG_SATA_SIL=y +# CONFIG_SATA_SIL24 is not set +# CONFIG_SATA_SIS is not set +# CONFIG_SATA_ULI is not set +# CONFIG_SATA_VIA is not set +# CONFIG_SATA_VITESSE is not set +# CONFIG_PATA_AMD is not set +# CONFIG_PATA_CS5520 is not set +# CONFIG_PATA_EFAR is not set +# CONFIG_ATA_GENERIC is not set +# CONFIG_PATA_HPT3X3 is not set +# CONFIG_PATA_JMICRON is not set +# CONFIG_PATA_TRIFLEX is not set +# CONFIG_PATA_MARVELL is not set +# CONFIG_PATA_MPIIX is not set +# CONFIG_PATA_NETCELL is not set +# CONFIG_PATA_RZ1000 is not set +# CONFIG_PATA_PDC2027X is not set +# CONFIG_PATA_SIL680 is not set +# CONFIG_PATA_VIA is not set +# CONFIG_PATA_WINBOND is not set +# CONFIG_PATA_PLATFORM is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set +# CONFIG_FUSION_SPI is not set +# CONFIG_FUSION_FC is not set +# CONFIG_FUSION_SAS is not set + +# +# IEEE 1394 (FireWire) support +# +# CONFIG_IEEE1394 is not set + +# +# I2O device support +# +# CONFIG_I2O is not set + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# ARCnet devices +# +# CONFIG_ARCNET is not set + +# +# PHY device support +# +CONFIG_PHYLIB=y + +# +# MII PHY device drivers +# +# CONFIG_MARVELL_PHY is not set +# CONFIG_DAVICOM_PHY is not set +# CONFIG_QSEMI_PHY is not set +# CONFIG_LXT_PHY is not set +# CONFIG_CICADA_PHY is not set +# CONFIG_VITESSE_PHY is not set +CONFIG_SMSC_PHY=y +# CONFIG_BROADCOM_PHY is not set +# CONFIG_FIXED_PHY is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_STNIC is not set +# CONFIG_HAPPYMEAL is not set +# CONFIG_SUNGEM is not set +# CONFIG_CASSINI is not set +# CONFIG_NET_VENDOR_3COM is not set +CONFIG_SMC91X=y + +# +# Tulip family network device support +# +# CONFIG_NET_TULIP is not set +# CONFIG_HP100 is not set +CONFIG_NET_PCI=y +# CONFIG_PCNET32 is not set +# CONFIG_AMD8111_ETH is not set +# CONFIG_ADAPTEC_STARFIRE is not set +# CONFIG_B44 is not set +# CONFIG_FORCEDETH is not set +# CONFIG_DGRS is not set +# CONFIG_EEPRO100 is not set +# CONFIG_E100 is not set +# CONFIG_FEALNX is not set +# CONFIG_NATSEMI is not set +# CONFIG_NE2K_PCI is not set +# CONFIG_8139TOO is not set +# CONFIG_SIS900 is not set +# CONFIG_EPIC100 is not set +# CONFIG_SUNDANCE is not set +# CONFIG_TLAN is not set +# CONFIG_VIA_RHINE is not set + +# +# Ethernet (1000 Mbit) +# +# CONFIG_ACENIC is not set +# CONFIG_DL2K is not set +# CONFIG_E1000 is not set +# CONFIG_NS83820 is not set +# CONFIG_HAMACHI is not set +# CONFIG_R8169 is not set +# CONFIG_SIS190 is not set +# CONFIG_SKGE is not set +# CONFIG_SKY2 is not set +# CONFIG_SK98LIN is not set +# CONFIG_VIA_VELOCITY is not set +# CONFIG_TIGON3 is not set +# CONFIG_BNX2 is not set +# CONFIG_QLA3XXX is not set + +# +# Ethernet (10000 Mbit) +# +# CONFIG_CHELSIO_T1 is not set +# CONFIG_CHELSIO_T3 is not set +# CONFIG_IXGB is not set +# CONFIG_S2IO is not set +# CONFIG_MYRI10GE is not set +# CONFIG_NETXEN_NIC is not set + +# +# Token Ring devices +# +# CONFIG_TR is not set + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_FDDI is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_NET_FC is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y +# CONFIG_INPUT_FF_MEMLESS is not set + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +CONFIG_VT=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +# CONFIG_VT_HW_CONSOLE_BINDING is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_NR_UARTS=2 +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_JSM is not set +CONFIG_UNIX98_PTYS=y +# CONFIG_LEGACY_PTYS is not set + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +# CONFIG_HW_RANDOM is not set +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_APPLICOM is not set +# CONFIG_DRM is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Multifunction device drivers +# +# CONFIG_MFD_SM501 is not set + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set +# CONFIG_USB_DABUSB is not set + +# +# Graphics support +# +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set +CONFIG_FB=y +CONFIG_FIRMWARE_EDID=y +# CONFIG_FB_DDC is not set +# CONFIG_FB_CFB_FILLRECT is not set +# CONFIG_FB_CFB_COPYAREA is not set +# CONFIG_FB_CFB_IMAGEBLIT is not set +# CONFIG_FB_SVGALIB is not set +# CONFIG_FB_MACMODES is not set +# CONFIG_FB_BACKLIGHT is not set +# CONFIG_FB_MODE_HELPERS is not set +# CONFIG_FB_TILEBLITTING is not set + +# +# Frambuffer hardware drivers +# +# CONFIG_FB_CIRRUS is not set +# CONFIG_FB_PM2 is not set +# CONFIG_FB_CYBER2000 is not set +# CONFIG_FB_ASILIANT is not set +# CONFIG_FB_IMSTT is not set +# CONFIG_FB_EPSON1355 is not set +# CONFIG_FB_S1D13XXX is not set +# CONFIG_FB_NVIDIA is not set +# CONFIG_FB_RIVA is not set +# CONFIG_FB_MATROX is not set +# CONFIG_FB_RADEON is not set +# CONFIG_FB_ATY128 is not set +# CONFIG_FB_ATY is not set +# CONFIG_FB_S3 is not set +# CONFIG_FB_SIS is not set +# CONFIG_FB_NEOMAGIC is not set +# CONFIG_FB_KYRO is not set +# CONFIG_FB_3DFX is not set +# CONFIG_FB_VOODOO1 is not set +# CONFIG_FB_TRIDENT is not set +# CONFIG_FB_VIRTUAL is not set + +# +# Console display driver support +# +CONFIG_DUMMY_CONSOLE=y +CONFIG_FRAMEBUFFER_CONSOLE=y +# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set +# CONFIG_FONTS is not set +CONFIG_FONT_8x8=y +CONFIG_FONT_8x16=y + +# +# Logo configuration +# +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_MONO is not set +# CONFIG_LOGO_LINUX_VGA16 is not set +CONFIG_LOGO_LINUX_CLUT224=y +# CONFIG_LOGO_SUPERH_MONO is not set +# CONFIG_LOGO_SUPERH_VGA16 is not set +CONFIG_LOGO_SUPERH_CLUT224=y + +# +# Sound +# +CONFIG_SOUND=y + +# +# Advanced Linux Sound Architecture +# +# CONFIG_SND is not set + +# +# Open Sound System +# +CONFIG_SOUND_PRIME=y +# CONFIG_OBSOLETE_OSS is not set +# CONFIG_SOUND_BT878 is not set +# CONFIG_SOUND_ICH is not set +# CONFIG_SOUND_TRIDENT is not set +# CONFIG_SOUND_MSNDCLAS is not set +# CONFIG_SOUND_MSNDPIN is not set +# CONFIG_SOUND_VIA82CXXX is not set + +# +# HID Devices +# +CONFIG_HID=y +# CONFIG_HID_DEBUG is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +CONFIG_USB_ARCH_HAS_EHCI=y +CONFIG_USB=y +CONFIG_USB_DEBUG=y + +# +# Miscellaneous USB options +# +CONFIG_USB_DEVICEFS=y + +# +# USB Host Controller Drivers +# +CONFIG_USB_EHCI_HCD=y +# CONFIG_USB_EHCI_BIG_ENDIAN_MMIO is not set +# CONFIG_USB_ISP116X_HCD is not set +CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set +# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y +# CONFIG_USB_UHCI_HCD is not set +# CONFIG_USB_SL811_HCD is not set + +# +# USB Device Class drivers +# +# CONFIG_USB_ACM is not set +# CONFIG_USB_PRINTER is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# may also be needed; see USB_STORAGE Help for more information +# +CONFIG_USB_STORAGE=y +# CONFIG_USB_STORAGE_DEBUG is not set +# CONFIG_USB_STORAGE_FREECOM is not set +# CONFIG_USB_STORAGE_DPCM is not set +# CONFIG_USB_STORAGE_KARMA is not set +# CONFIG_USB_LIBUSUAL is not set + +# +# USB Input Devices +# +CONFIG_USB_HID=y +# CONFIG_USB_HIDINPUT_POWERBOOK is not set +# CONFIG_USB_HIDDEV is not set +# CONFIG_USB_AIPTEK is not set +# CONFIG_USB_WACOM is not set +# CONFIG_USB_ACECAD is not set +# CONFIG_USB_KBTAB is not set +# CONFIG_USB_POWERMATE is not set +# CONFIG_USB_TOUCHSCREEN is not set +# CONFIG_USB_XPAD is not set +# CONFIG_USB_ATI_REMOTE is not set +# CONFIG_USB_ATI_REMOTE2 is not set +# CONFIG_USB_APPLETOUCH is not set +# CONFIG_USB_GTCO is not set + +# +# USB Imaging devices +# +# CONFIG_USB_MICROTEK is not set + +# +# USB Network Adapters +# +# CONFIG_USB_KAWETH is not set +# CONFIG_USB_PEGASUS is not set +# CONFIG_USB_USBNET_MII is not set +# CONFIG_USB_USBNET is not set +CONFIG_USB_MON=y + +# +# USB port drivers +# + +# +# USB Serial Converter support +# +# CONFIG_USB_SERIAL is not set + +# +# USB Miscellaneous drivers +# +# CONFIG_USB_EMI62 is not set +# CONFIG_USB_EMI26 is not set +# CONFIG_USB_LCD is not set +# CONFIG_USB_BERRY_CHARGE is not set +# CONFIG_USB_LED is not set +# CONFIG_USB_CYPRESS_CY7C63 is not set +# CONFIG_USB_CYTHERM is not set +# CONFIG_USB_PHIDGET is not set +# CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_FTDI_ELAN is not set +# CONFIG_USB_APPLEDISPLAY is not set +# CONFIG_USB_SISUSBVGA is not set +# CONFIG_USB_LD is not set +# CONFIG_USB_TRANCEVIBRATOR is not set +# CONFIG_USB_IOWARRIOR is not set + +# +# USB DSL modem support +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# +# CONFIG_INFINIBAND is not set + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# + +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + +# +# Auxiliary Display support +# + +# +# Virtualization +# + +# +# File systems +# +CONFIG_EXT2_FS=y +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +# CONFIG_EXT3_FS is not set +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y +# CONFIG_QUOTA is not set +# CONFIG_DNOTIFY is not set +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=y +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +# CONFIG_PROC_KCORE is not set +CONFIG_PROC_SYSCTL=y +# CONFIG_SYSFS is not set +CONFIG_TMPFS=y +# CONFIG_TMPFS_POSIX_ACL is not set +# CONFIG_HUGETLBFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y + +# +# Miscellaneous filesystems +# +# CONFIG_HFSPLUS_FS is not set +# CONFIG_JFFS2_FS is not set +CONFIG_CRAMFS=y +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +# CONFIG_NFS_DIRECTIO is not set +# CONFIG_NFSD is not set +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +# CONFIG_NLS_CODEPAGE_437 is not set +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +# CONFIG_NLS_ISO8859_1 is not set +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set + +# +# Kernel hacking +# +CONFIG_TRACE_IRQFLAGS_SUPPORT=y +# CONFIG_PRINTK_TIME is not set +CONFIG_ENABLE_MUST_CHECK=y +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_UNUSED_SYMBOLS is not set +# CONFIG_HEADERS_CHECK is not set +# CONFIG_DEBUG_KERNEL is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_DEBUG_BUGVERBOSE is not set +# CONFIG_SH_STANDARD_BIOS is not set +# CONFIG_EARLY_SCIF_CONSOLE is not set +# CONFIG_SH_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Library routines +# +CONFIG_BITREVERSE=y +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y +CONFIG_PLIST=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y diff --git a/arch/sh/drivers/Kconfig b/arch/sh/drivers/Kconfig index c54c758..420c6b2 100644 --- a/arch/sh/drivers/Kconfig +++ b/arch/sh/drivers/Kconfig @@ -1,5 +1,15 @@ +source "arch/sh/drivers/dma/Kconfig" +source "arch/sh/cchips/Kconfig" + menu "Additional SuperH Device Drivers" +config HEARTBEAT + bool "Heartbeat LED" + help + Use the power-on LED on your machine as a load meter. The exact + behavior is platform-dependent, but normally the flash frequency is + a hyperbolic function of the 5-minute load average. + config PUSH_SWITCH tristate "Push switch support" help diff --git a/arch/sh/drivers/heartbeat.c b/arch/sh/drivers/heartbeat.c index bc59cb6..23dd608 100644 --- a/arch/sh/drivers/heartbeat.c +++ b/arch/sh/drivers/heartbeat.c @@ -40,16 +40,9 @@ static void heartbeat_timer(unsigned long data) static unsigned bit = 0, up = 1; ctrl_outw(1 << hd->bit_pos[bit], (unsigned long)hd->base); - if (up) - if (bit == (ARRAY_SIZE(hd->bit_pos) - 1)) { - bit--; - up = 0; - } else - bit++; - else if (bit == 0) - up = 1; - else - bit--; + bit += up; + if ((bit == 0) || (bit == ARRAY_SIZE(hd->bit_pos)-1)) + up = -up; mod_timer(&hd->timer, jiffies + (110 - ((300 << FSHIFT) / ((avenrun[0] / 5) + (3 << FSHIFT))))); diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile index cc8d0d0..0e9b532 100644 --- a/arch/sh/drivers/pci/Makefile +++ b/arch/sh/drivers/pci/Makefile @@ -8,12 +8,15 @@ obj-$(CONFIG_PCI_AUTO) += pci-auto.o obj-$(CONFIG_CPU_SUBTYPE_ST40STB1) += pci-st40.o obj-$(CONFIG_CPU_SUBTYPE_SH7751) += pci-sh7751.o ops-sh4.o obj-$(CONFIG_CPU_SUBTYPE_SH7780) += pci-sh7780.o ops-sh4.o +obj-$(CONFIG_CPU_SUBTYPE_SH7785) += pci-sh7780.o ops-sh4.o obj-$(CONFIG_SH_DREAMCAST) += ops-dreamcast.o fixups-dreamcast.o \ dma-dreamcast.o obj-$(CONFIG_SH_SECUREEDGE5410) += ops-snapgear.o obj-$(CONFIG_SH_RTS7751R2D) += ops-rts7751r2d.o fixups-rts7751r2d.o obj-$(CONFIG_SH_SH03) += ops-sh03.o fixups-sh03.o -obj-$(CONFIG_SH_R7780RP) += ops-r7780rp.o fixups-r7780rp.o +obj-$(CONFIG_SH_HIGHLANDER) += ops-r7780rp.o fixups-r7780rp.o obj-$(CONFIG_SH_TITAN) += ops-titan.o obj-$(CONFIG_SH_LANDISK) += ops-landisk.o +obj-$(CONFIG_SH_LBOX_RE2) += ops-lboxre2.o fixups-lboxre2.o +obj-$(CONFIG_SH_7780_SOLUTION_ENGINE) += ops-se7780.o fixups-se7780.o diff --git a/arch/sh/drivers/pci/fixups-lboxre2.c b/arch/sh/drivers/pci/fixups-lboxre2.c new file mode 100644 index 0000000..40b19bd --- /dev/null +++ b/arch/sh/drivers/pci/fixups-lboxre2.c @@ -0,0 +1,41 @@ +/* + * arch/sh/drivers/pci/fixups-lboxre2.c + * + * L-BOX RE2 PCI fixups + * + * Copyright (C) 2007 Nobuhiro Iwamatsu + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include "pci-sh4.h" + +#define PCIMCR_MRSET_OFF 0xBFFFFFFF +#define PCIMCR_RFSH_OFF 0xFFFFFFFB + +int pci_fixup_pcic(void) +{ + unsigned long bcr1, mcr; + + bcr1 = inl(SH7751_BCR1); + bcr1 |= 0x40080000; /* Enable Bit 19 BREQEN, set PCIC to slave */ + pci_write_reg(bcr1, SH4_PCIBCR1); + + /* Enable all interrupts, so we known what to fix */ + pci_write_reg(0x0000c3ff, SH4_PCIINTM); + pci_write_reg(0x0000380f, SH4_PCIAINTM); + pci_write_reg(0xfb900047, SH7751_PCICONF1); + pci_write_reg(0xab000001, SH7751_PCICONF4); + + mcr = inl(SH7751_MCR); + mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF; + pci_write_reg(mcr, SH4_PCIMCR); + + pci_write_reg(0x0c000000, SH7751_PCICONF5); + pci_write_reg(0xd0000000, SH7751_PCICONF6); + pci_write_reg(0x0c000000, SH4_PCILAR0); + pci_write_reg(0x00000000, SH4_PCILAR1); + + return 0; +} diff --git a/arch/sh/drivers/pci/fixups-se7780.c b/arch/sh/drivers/pci/fixups-se7780.c new file mode 100644 index 0000000..880cea1 --- /dev/null +++ b/arch/sh/drivers/pci/fixups-se7780.c @@ -0,0 +1,60 @@ +/* + * arch/sh/drivers/pci/fixups-se7780.c + * + * HITACHI UL Solution Engine 7780 PCI fixups + * + * Copyright (C) 2003 Lineo uSolutions, Inc. + * Copyright (C) 2004 - 2006 Paul Mundt + * Copyright (C) 2006 Nobuhiro Iwamatsu + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/pci.h> +#include "pci-sh4.h" +#include <asm/io.h> + +int pci_fixup_pcic(void) +{ + ctrl_outl(0x00000001, SH7780_PCI_VCR2); + + /* Enable all interrupts, so we know what to fix */ + pci_write_reg(0x0000C3FF, SH7780_PCIIMR); + pci_write_reg(0x0000380F, SH7780_PCIAINTM); + + /* Set up standard PCI config registers */ + ctrl_outw(0xFB00, PCI_REG(SH7780_PCISTATUS)); + ctrl_outw(0x0047, PCI_REG(SH7780_PCICMD)); + ctrl_outb( 0x00, PCI_REG(SH7780_PCIPIF)); + ctrl_outb( 0x00, PCI_REG(SH7780_PCISUB)); + ctrl_outb( 0x06, PCI_REG(SH7780_PCIBCC)); + ctrl_outw(0x1912, PCI_REG(SH7780_PCISVID)); + ctrl_outw(0x0001, PCI_REG(SH7780_PCISID)); + + pci_write_reg(0x08000000, SH7780_PCIMBAR0); /* PCI */ + pci_write_reg(0x08000000, SH7780_PCILAR0); /* SHwy */ + pci_write_reg(0x07F00001, SH7780_PCILSR); /* size 128M w/ MBAR */ + + pci_write_reg(0x00000000, SH7780_PCIMBAR1); + pci_write_reg(0x00000000, SH7780_PCILAR1); + pci_write_reg(0x00000000, SH7780_PCILSR1); + + pci_write_reg(0xAB000801, SH7780_PCIIBAR); + + /* + * Set the MBR so PCI address is one-to-one with window, + * meaning all calls go straight through... use ifdef to + * catch erroneous assumption. + */ + pci_write_reg(0xFD000000 , SH7780_PCIMBR0); + pci_write_reg(0x00FC0000 , SH7780_PCIMBMR0); /* 16M */ + + /* Set IOBR for window containing area specified in pci.h */ + pci_write_reg(PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE-1), SH7780_PCIIOBR); + pci_write_reg((SH7780_PCI_IO_SIZE-1) & (7 << 18), SH7780_PCIIOBMR); + + pci_write_reg(0xA5000C01, SH7780_PCICR); + + return 0; +} diff --git a/arch/sh/drivers/pci/ops-landisk.c b/arch/sh/drivers/pci/ops-landisk.c index d060308..bff09ec 100644 --- a/arch/sh/drivers/pci/ops-landisk.c +++ b/arch/sh/drivers/pci/ops-landisk.c @@ -17,8 +17,8 @@ static struct resource sh7751_io_resource = { .name = "SH7751 IO", - .start = 0x4000, - .end = 0x4000 + SH7751_PCI_IO_SIZE - 1, + .start = SH7751_PCI_IO_BASE, + .end = SH7751_PCI_IO_BASE + SH7751_PCI_IO_SIZE - 1, .flags = IORESOURCE_IO }; diff --git a/arch/sh/drivers/pci/ops-lboxre2.c b/arch/sh/drivers/pci/ops-lboxre2.c new file mode 100644 index 0000000..a13cb76 --- /dev/null +++ b/arch/sh/drivers/pci/ops-lboxre2.c @@ -0,0 +1,63 @@ +/* + * linux/arch/sh/drivers/pci/ops-lboxre2.c + * + * Copyright (C) 2007 Nobuhiro Iwamatsu + * + * PCI initialization for the NTT COMWARE L-BOX RE2 + */ +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/io.h> +#include <asm/lboxre2.h> +#include "pci-sh4.h" + +static char lboxre2_irq_tab[] __initdata = { + IRQ_ETH0, IRQ_ETH1, IRQ_INTA, IRQ_INTD, +}; + +int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) +{ + return lboxre2_irq_tab[slot]; +} + +static struct resource sh7751_io_resource = { + .name = "SH7751_IO", + .start = SH7751_PCI_IO_BASE , + .end = SH7751_PCI_IO_BASE + SH7751_PCI_IO_SIZE - 1, + .flags = IORESOURCE_IO +}; + +static struct resource sh7751_mem_resource = { + .name = "SH7751_mem", + .start = SH7751_PCI_MEMORY_BASE, + .end = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1, + .flags = IORESOURCE_MEM +}; + +extern struct pci_ops sh7751_pci_ops; + +struct pci_channel board_pci_channels[] = { + { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, + { NULL, NULL, NULL, 0, 0 }, +}; + +EXPORT_SYMBOL(board_pci_channels); + +static struct sh4_pci_address_map sh7751_pci_map = { + .window0 = { + .base = SH7751_CS3_BASE_ADDR, + .size = 0x04000000, + }, + .window1 = { + .base = 0x00000000, /* Unused */ + .size = 0x00000000, /* Unused */ + }, + .flags = SH4_PCIC_NO_RESET, +}; + +int __init pcibios_init_platform(void) +{ + return sh7751_pcic_init(&sh7751_pci_map); +} diff --git a/arch/sh/drivers/pci/ops-r7780rp.c b/arch/sh/drivers/pci/ops-r7780rp.c index eeea157..f221608 100644 --- a/arch/sh/drivers/pci/ops-r7780rp.c +++ b/arch/sh/drivers/pci/ops-r7780rp.c @@ -17,18 +17,25 @@ #include <asm/io.h> #include "pci-sh4.h" +static char r7780rp_irq_tab[] __initdata = { + 0, 1, 2, 3, +}; + +static char r7780mp_irq_tab[] __initdata = { + 65, 66, 67, 68, +}; + int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) { - switch (slot) { - case 0: return IRQ_PCISLOT1; /* PCI Interrupt #1 */ - case 1: return IRQ_PCISLOT2; /* PCI Interrupt #2 */ - case 2: return IRQ_PCISLOT3; /* PCI Interrupt #3 */ - case 3: return IRQ_PCISLOT4; /* PCI Interrupt E4 */ - default: - printk(KERN_ERR "PCI: Bad IRQ mapping " - "request for slot %d, func %d\n", slot, pin-1); - return -1; - } + if (mach_is_r7780rp()) + return r7780rp_irq_tab[slot]; + if (mach_is_r7780mp() || mach_is_r7785rp()) + return r7780mp_irq_tab[slot]; + + printk(KERN_ERR "PCI: Bad IRQ mapping " + "request for slot %d, func %d\n", slot, pin-1); + + return -1; } static struct resource sh7780_io_resource = { diff --git a/arch/sh/drivers/pci/ops-se7780.c b/arch/sh/drivers/pci/ops-se7780.c new file mode 100644 index 0000000..212674df --- /dev/null +++ b/arch/sh/drivers/pci/ops-se7780.c @@ -0,0 +1,96 @@ +/* + * linux/arch/sh/drivers/pci/ops-se7780.c + * + * Copyright (C) 2006 Nobuhiro Iwamatsu + * + * PCI initialization for the Hitachi UL Solution Engine 7780SE03 + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + */ +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pci.h> +#include <asm/se7780.h> +#include <asm/io.h> +#include "pci-sh4.h" + +/* + * IDSEL = AD16 PCI slot + * IDSEL = AD17 PCI slot + * IDSEL = AD18 Serial ATA Controller (Silicon Image SiL3512A) + * IDSEL = AD19 USB Host Controller (NEC uPD7210100A) + */ + +/* IDSEL [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] */ +static char se7780_irq_tab[4][16] __initdata = { + /* INTA */ + { 65, 68, 67, 68, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + /* INTB */ + { 66, 65, -1, 65, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + /* INTC */ + { 67, 66, -1, 66, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, + /* INTD */ + { 68, 67, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, +}; + +int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) +{ + return se7780_irq_tab[pin-1][slot]; +} + +static struct resource se7780_io_resource = { + .name = "SH7780_IO", + .start = 0x2000, + .end = 0x2000 + SH7780_PCI_IO_SIZE - 1, + .flags = IORESOURCE_IO +}; + +static struct resource se7780_mem_resource = { + .name = "SH7780_mem", + .start = SH7780_PCI_MEMORY_BASE, + .end = SH7780_PCI_MEMORY_BASE + SH7780_PCI_MEM_SIZE - 1, + .flags = IORESOURCE_MEM +}; + +extern struct pci_ops se7780_pci_ops; + +struct pci_channel board_pci_channels[] = { + { &sh4_pci_ops, &se7780_io_resource, &se7780_mem_resource, 0, 0xff }, + { NULL, NULL, NULL, 0, 0 }, +}; +EXPORT_SYMBOL(board_pci_channels); + +static struct sh4_pci_address_map se7780_pci_map = { + .window0 = { + .base = SH7780_CS2_BASE_ADDR, + .size = 0x04000000, + }, + .flags = SH4_PCIC_NO_RESET, +}; + +int __init pcibios_init_platform(void) +{ + printk("SH7780 PCI: Finished initialization of the PCI controller\n"); + + /* + * FPGA PCISEL register initialize + * + * CPU || SLOT1 | SLOT2 | S-ATA | USB + * ------------------------------------- + * INTA || INTA | INTD | -- | INTB + * ------------------------------------- + * INTB || INTB | INTA | -- | INTC + * ------------------------------------- + * INTC || INTC | INTB | INTA | -- + * ------------------------------------- + * INTD || INTD | INTC | -- | INTA + * ------------------------------------- + */ + ctrl_outw(0x0013, FPGA_PCI_INTSEL1); + ctrl_outw(0xE402, FPGA_PCI_INTSEL2); + + return sh7780_pcic_init(&se7780_pci_map); +} diff --git a/arch/sh/drivers/pci/ops-sh4.c b/arch/sh/drivers/pci/ops-sh4.c index 2d437100..54232f1 100644 --- a/arch/sh/drivers/pci/ops-sh4.c +++ b/arch/sh/drivers/pci/ops-sh4.c @@ -162,3 +162,9 @@ char * __init pcibios_setup(char *str) return str; } + +int __attribute__((weak)) pci_fixup_pcic(void) +{ + /* Nothing to do. */ + return 0; +} diff --git a/arch/sh/drivers/pci/pci-sh4.h b/arch/sh/drivers/pci/pci-sh4.h index 5a61d60..1901c33 100644 --- a/arch/sh/drivers/pci/pci-sh4.h +++ b/arch/sh/drivers/pci/pci-sh4.h @@ -1,7 +1,7 @@ #ifndef __PCI_SH4_H #define __PCI_SH4_H -#ifdef CONFIG_CPU_SUBTYPE_SH7780 +#if defined(CONFIG_CPU_SUBTYPE_SH7780) || defined(CONFIG_CPU_SUBTYPE_SH7785) #include "pci-sh7780.h" #else #include "pci-sh7751.h" diff --git a/arch/sh/drivers/pci/pci-sh7751.c b/arch/sh/drivers/pci/pci-sh7751.c index 9ddff76..1aca7fe 100644 --- a/arch/sh/drivers/pci/pci-sh7751.c +++ b/arch/sh/drivers/pci/pci-sh7751.c @@ -12,7 +12,6 @@ * License. See linux/COPYING for more information. * */ - #undef DEBUG #include <linux/init.h> @@ -28,7 +27,7 @@ * Initialization. Try all known PCI access methods. Note that we support * using both PCI BIOS and direct access: in such cases, we use I/O ports * to access config space. - * + * * Note that the platform specific initialization (BSC registers, and memory * space mapping) will be called via the platform defined function * pcibios_init_platform(). @@ -115,7 +114,7 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map) * Wait Cycle Control + Parity Enable + Bus Master + * Mem space enable */ - word = SH7751_PCICONF1_WCC | SH7751_PCICONF1_PER | + word = SH7751_PCICONF1_WCC | SH7751_PCICONF1_PER | SH7751_PCICONF1_BUM | SH7751_PCICONF1_MES; pci_write_reg(word, SH7751_PCICONF1); @@ -123,10 +122,10 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map) word = PCI_BASE_CLASS_BRIDGE << 24; pci_write_reg(word, SH7751_PCICONF2); - /* Set IO and Mem windows to local address - * Make PCI and local address the same for easy 1 to 1 mapping + /* Set IO and Mem windows to local address + * Make PCI and local address the same for easy 1 to 1 mapping * Window0 = map->window0.size @ non-cached area base = SDRAM - * Window1 = map->window1.size @ cached area base = SDRAM + * Window1 = map->window1.size @ cached area base = SDRAM */ word = map->window0.size - 1; pci_write_reg(word, SH4_PCILSR0); @@ -175,7 +174,7 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map) case SH7751_CS5_BASE_ADDR: word = __area_sdram_check(5); break; case SH7751_CS6_BASE_ADDR: word = __area_sdram_check(6); break; } - + if (!word) return 0; @@ -194,9 +193,7 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map) * DMA interrupts... */ -#ifdef CONFIG_SH_RTS7751R2D pci_fixup_pcic(); -#endif /* SH7751 init done, set central function init complete */ /* use round robin mode to stop a device starving/overruning */ diff --git a/arch/sh/drivers/pci/pci-sh7780.c b/arch/sh/drivers/pci/pci-sh7780.c index 602b644..5508e45 100644 --- a/arch/sh/drivers/pci/pci-sh7780.c +++ b/arch/sh/drivers/pci/pci-sh7780.c @@ -48,7 +48,7 @@ static int __init sh7780_pci_init(void) { unsigned int id; - int ret; + int ret, match = 0; pr_debug("PCI: Starting intialization.\n"); @@ -56,19 +56,43 @@ static int __init sh7780_pci_init(void) /* check for SH7780/SH7780R hardware */ id = pci_read_reg(SH7780_PCIVID); - if ((id != ((SH7780_DEVICE_ID << 16) | SH7780_VENDOR_ID)) && - (id != ((SH7781_DEVICE_ID << 16) | SH7780_VENDOR_ID))) { + if ((id & 0xffff) == SH7780_VENDOR_ID) { + switch ((id >> 16) & 0xffff) { + case SH7780_DEVICE_ID: + case SH7781_DEVICE_ID: + case SH7785_DEVICE_ID: + match = 1; + break; + } + } + + if (unlikely(!match)) { printk(KERN_ERR "PCI: This is not an SH7780 (%x)\n", id); return -ENODEV; } /* Setup the INTC */ - ctrl_outl(0x00200000, INTC_ICR0); /* INTC SH-4 Mode */ - ctrl_outl(0x00078000, INTC_INT2MSKCR); /* enable PCIINTA - PCIINTD */ - ctrl_outl(0x40000000, INTC_INTMSK1); /* disable IRL4-7 Interrupt */ - ctrl_outl(0x0000fffe, INTC_INTMSK2); /* disable IRL4-7 Interrupt */ - ctrl_outl(0x80000000, INTC_INTMSKCLR1); /* enable IRL0-3 Interrupt */ - ctrl_outl(0xfffe0000, INTC_INTMSKCLR2); /* enable IRL0-3 Interrupt */ + if (mach_is_7780se()) { + /* ICR0: IRL=use separately */ + ctrl_outl(0x00C00020, INTC_ICR0); + /* ICR1: detect low level(for 2ndcut) */ + ctrl_outl(0xAAAA0000, INTC_ICR1); + /* INTPRI: priority=3(all) */ + ctrl_outl(0x33333333, INTC_INTPRI); + } else { + /* INTC SH-4 Mode */ + ctrl_outl(0x00200000, INTC_ICR0); + /* enable PCIINTA - PCIINTD */ + ctrl_outl(0x00078000, INTC_INT2MSKCR); + /* disable IRL4-7 Interrupt */ + ctrl_outl(0x40000000, INTC_INTMSK1); + /* disable IRL4-7 Interrupt */ + ctrl_outl(0x0000fffe, INTC_INTMSK2); + /* enable IRL0-3 Interrupt */ + ctrl_outl(0x80000000, INTC_INTMSKCLR1); + /* enable IRL0-3 Interrupt */ + ctrl_outl(0xfffe0000, INTC_INTMSKCLR2); + } if ((ret = sh4_pci_check_direct()) != 0) return ret; @@ -138,9 +162,8 @@ int __init sh7780_pcic_init(struct sh4_pci_address_map *map) * DMA interrupts... */ -#ifdef CONFIG_SH_R7780RP + /* Apply any last-minute PCIC fixups */ pci_fixup_pcic(); -#endif /* SH7780 init done, set central function init complete */ /* use round robin mode to stop a device starving/overruning */ diff --git a/arch/sh/drivers/pci/pci-sh7780.h b/arch/sh/drivers/pci/pci-sh7780.h index f02d218..00d12d0 100644 --- a/arch/sh/drivers/pci/pci-sh7780.h +++ b/arch/sh/drivers/pci/pci-sh7780.h @@ -14,8 +14,9 @@ /* Platform Specific Values */ #define SH7780_VENDOR_ID 0x1912 -#define SH7780_DEVICE_ID 0x0002 #define SH7781_DEVICE_ID 0x0001 +#define SH7780_DEVICE_ID 0x0002 +#define SH7785_DEVICE_ID 0x0007 /* SH7780 Control Registers */ #define SH7780_PCI_VCR0 0xFE000000 @@ -65,6 +66,22 @@ #define SH7780_PCIPMCSR_BSE 0x046 #define SH7780_PCICDD 0x047 +#define SH7780_PCICR 0x100 /* PCI Control Register */ +#define SH7780_PCILSR 0x104 /* PCI Local Space Register0 */ +#define SH7780_PCILSR1 0x108 /* PCI Local Space Register1 */ +#define SH7780_PCILAR0 0x10C /* PCI Local Address Register1 */ +#define SH7780_PCILAR1 0x110 /* PCI Local Address Register1 */ +#define SH7780_PCIIR 0x114 /* PCI Interrupt Register */ +#define SH7780_PCIIMR 0x118 /* PCI Interrupt Mask Register */ +#define SH7780_PCIAIR 0x11C /* Error Address Register */ +#define SH7780_PCICIR 0x120 /* Error Command/Data Register */ +#define SH7780_PCIAINT 0x130 /* Arbiter Interrupt Register */ +#define SH7780_PCIAINTM 0x134 /* Arbiter Int. Mask Register */ +#define SH7780_PCIBMIR 0x138 /* Error Bus Master Register */ +#define SH7780_PCIPAR 0x1C0 /* PIO Address Register */ +#define SH7780_PCIPINT 0x1CC /* Power Mgmnt Int. Register */ +#define SH7780_PCIPINTM 0x1D0 /* Power Mgmnt Mask Register */ + #define SH7780_PCIMBR0 0x1E0 #define SH7780_PCIMBMR0 0x1E4 #define SH7780_PCIMBR2 0x1F0 diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile index ff30d7f..9104b62 100644 --- a/arch/sh/kernel/Makefile +++ b/arch/sh/kernel/Makefile @@ -20,5 +20,6 @@ obj-$(CONFIG_SH_CPU_FREQ) += cpufreq.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o +obj-$(CONFIG_CRASH_DUMP) += crash_dump.o obj-$(CONFIG_PM) += pm.o obj-$(CONFIG_STACKTRACE) += stacktrace.o diff --git a/arch/sh/kernel/cf-enabler.c b/arch/sh/kernel/cf-enabler.c index 3e5fa1e..0758d48 100644 --- a/arch/sh/kernel/cf-enabler.c +++ b/arch/sh/kernel/cf-enabler.c @@ -29,7 +29,7 @@ * 0xB8001000 : Common Memory * 0xBA000000 : I/O */ -#if defined(CONFIG_IDE) && defined(CONFIG_CPU_SH4) +#if defined(CONFIG_CPU_SH4) /* SH4 can't access PCMCIA interface through P2 area. * we must remap it with appropreate attribute bit of the page set. * this part is based on Greg Banks' hd64465_ss.c implementation - Masahiro Abe */ @@ -71,7 +71,7 @@ static int __init cf_init_default(void) /* You must have enabled the card, and set the level interrupt * before reaching this point. Possibly in boot ROM or boot loader. */ -#if defined(CONFIG_IDE) && defined(CONFIG_CPU_SH4) +#if defined(CONFIG_CPU_SH4) allocate_cf_area(); #endif #if defined(CONFIG_SH_UNKNOWN) @@ -84,15 +84,25 @@ static int __init cf_init_default(void) #if defined(CONFIG_SH_SOLUTION_ENGINE) #include <asm/se.h> +#elif defined(CONFIG_SH_7722_SOLUTION_ENGINE) +#include <asm/se7722.h> +#endif /* - * SolutionEngine + * SolutionEngine Seriese * + * about MS770xSE * 0xB8400000 : Common Memory * 0xB8500000 : Attribute * 0xB8600000 : I/O + * + * about MS7722SE + * 0xB0400000 : Common Memory + * 0xB0500000 : Attribute + * 0xB0600000 : I/O */ +#if defined(CONFIG_SH_SOLUTION_ENGINE) || defined(CONFIG_SH_7722_SOLUTION_ENGINE) static int __init cf_init_se(void) { if ((ctrl_inw(MRSHPC_CSR) & 0x000c) != 0) @@ -109,7 +119,7 @@ static int __init cf_init_se(void) * flag == COMMON/ATTRIBUTE/IO */ /* common window open */ - ctrl_outw(0x8a84, MRSHPC_MW0CR1);/* window 0xb8400000 */ + ctrl_outw(0x8a84, MRSHPC_MW0CR1); if((ctrl_inw(MRSHPC_CSR) & 0x4000) != 0) /* common mode & bus width 16bit SWAP = 1*/ ctrl_outw(0x0b00, MRSHPC_MW0CR2); @@ -118,7 +128,7 @@ static int __init cf_init_se(void) ctrl_outw(0x0300, MRSHPC_MW0CR2); /* attribute window open */ - ctrl_outw(0x8a85, MRSHPC_MW1CR1);/* window 0xb8500000 */ + ctrl_outw(0x8a85, MRSHPC_MW1CR1); if ((ctrl_inw(MRSHPC_CSR) & 0x4000) != 0) /* attribute mode & bus width 16bit SWAP = 1*/ ctrl_outw(0x0a00, MRSHPC_MW1CR2); @@ -127,7 +137,7 @@ static int __init cf_init_se(void) ctrl_outw(0x0200, MRSHPC_MW1CR2); /* I/O window open */ - ctrl_outw(0x8a86, MRSHPC_IOWCR1);/* I/O window 0xb8600000 */ + ctrl_outw(0x8a86, MRSHPC_IOWCR1); ctrl_outw(0x0008, MRSHPC_CDCR); /* I/O card mode */ if ((ctrl_inw(MRSHPC_CSR) & 0x4000) != 0) ctrl_outw(0x0a00, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1*/ @@ -143,10 +153,10 @@ static int __init cf_init_se(void) int __init cf_init(void) { -#if defined(CONFIG_SH_SOLUTION_ENGINE) - if (MACH_SE) + if( mach_is_se() || mach_is_7722se() ){ return cf_init_se(); -#endif + } + return cf_init_default(); } diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c index abb586b1..014f318 100644 --- a/arch/sh/kernel/cpu/clock.c +++ b/arch/sh/kernel/cpu/clock.c @@ -1,7 +1,7 @@ /* * arch/sh/kernel/cpu/clock.c - SuperH clock framework * - * Copyright (C) 2005, 2006 Paul Mundt + * Copyright (C) 2005, 2006, 2007 Paul Mundt * * This clock framework is derived from the OMAP version by: * @@ -23,6 +23,7 @@ #include <linux/seq_file.h> #include <linux/err.h> #include <linux/platform_device.h> +#include <linux/proc_fs.h> #include <asm/clock.h> #include <asm/timer.h> @@ -98,15 +99,17 @@ int __clk_enable(struct clk *clk) if (clk->ops && clk->ops->init) clk->ops->init(clk); + kref_get(&clk->kref); + if (clk->flags & CLK_ALWAYS_ENABLED) return 0; if (likely(clk->ops && clk->ops->enable)) clk->ops->enable(clk); - kref_get(&clk->kref); return 0; } +EXPORT_SYMBOL_GPL(__clk_enable); int clk_enable(struct clk *clk) { @@ -119,6 +122,7 @@ int clk_enable(struct clk *clk) return ret; } +EXPORT_SYMBOL_GPL(clk_enable); static void clk_kref_release(struct kref *kref) { @@ -127,11 +131,17 @@ static void clk_kref_release(struct kref *kref) void __clk_disable(struct clk *clk) { + int count = kref_put(&clk->kref, clk_kref_release); + if (clk->flags & CLK_ALWAYS_ENABLED) return; - kref_put(&clk->kref, clk_kref_release); + if (!count) { /* count reaches zero, disable the clock */ + if (likely(clk->ops && clk->ops->disable)) + clk->ops->disable(clk); + } } +EXPORT_SYMBOL_GPL(__clk_disable); void clk_disable(struct clk *clk) { @@ -141,6 +151,7 @@ void clk_disable(struct clk *clk) __clk_disable(clk); spin_unlock_irqrestore(&clock_lock, flags); } +EXPORT_SYMBOL_GPL(clk_disable); int clk_register(struct clk *clk) { @@ -151,8 +162,18 @@ int clk_register(struct clk *clk) mutex_unlock(&clock_list_sem); + if (clk->flags & CLK_ALWAYS_ENABLED) { + pr_debug( "Clock '%s' is ALWAYS_ENABLED\n", clk->name); + if (clk->ops && clk->ops->init) + clk->ops->init(clk); + if (clk->ops && clk->ops->enable) + clk->ops->enable(clk); + pr_debug( "Enabled."); + } + return 0; } +EXPORT_SYMBOL_GPL(clk_register); void clk_unregister(struct clk *clk) { @@ -160,21 +181,29 @@ void clk_unregister(struct clk *clk) list_del(&clk->node); mutex_unlock(&clock_list_sem); } +EXPORT_SYMBOL_GPL(clk_unregister); -inline unsigned long clk_get_rate(struct clk *clk) +unsigned long clk_get_rate(struct clk *clk) { return clk->rate; } +EXPORT_SYMBOL_GPL(clk_get_rate); int clk_set_rate(struct clk *clk, unsigned long rate) { + return clk_set_rate_ex(clk, rate, 0); +} +EXPORT_SYMBOL_GPL(clk_set_rate); + +int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id) +{ int ret = -EOPNOTSUPP; if (likely(clk->ops && clk->ops->set_rate)) { unsigned long flags; spin_lock_irqsave(&clock_lock, flags); - ret = clk->ops->set_rate(clk, rate); + ret = clk->ops->set_rate(clk, rate, algo_id); spin_unlock_irqrestore(&clock_lock, flags); } @@ -183,6 +212,7 @@ int clk_set_rate(struct clk *clk, unsigned long rate) return ret; } +EXPORT_SYMBOL_GPL(clk_set_rate_ex); void clk_recalc_rate(struct clk *clk) { @@ -197,6 +227,7 @@ void clk_recalc_rate(struct clk *clk) if (unlikely(clk->flags & CLK_RATE_PROPAGATES)) propagate_rate(clk); } +EXPORT_SYMBOL_GPL(clk_recalc_rate); /* * Returns a clock. Note that we first try to use device id on the bus @@ -233,18 +264,43 @@ found: return clk; } +EXPORT_SYMBOL_GPL(clk_get); void clk_put(struct clk *clk) { if (clk && !IS_ERR(clk)) module_put(clk->owner); } +EXPORT_SYMBOL_GPL(clk_put); void __init __attribute__ ((weak)) arch_init_clk_ops(struct clk_ops **ops, int type) { } +static int show_clocks(char *buf, char **start, off_t off, + int len, int *eof, void *data) +{ + struct clk *clk; + char *p = buf; + + list_for_each_entry_reverse(clk, &clock_list, node) { + unsigned long rate = clk_get_rate(clk); + + /* + * Don't bother listing dummy clocks with no ancestry + * that only support enable and disable ops. + */ + if (unlikely(!rate && !clk->parent)) + continue; + + p += sprintf(p, "%-12s\t: %ld.%02ldMHz\n", clk->name, + rate / 1000000, (rate % 1000000) / 10000); + } + + return p - buf; +} + int __init clk_init(void) { int i, ret = 0; @@ -256,7 +312,6 @@ int __init clk_init(void) arch_init_clk_ops(&clk->ops, i); ret |= clk_register(clk); - clk_enable(clk); } /* Kick the child clocks.. */ @@ -266,35 +321,14 @@ int __init clk_init(void) return ret; } -int show_clocks(struct seq_file *m) +static int __init clk_proc_init(void) { - struct clk *clk; - - list_for_each_entry_reverse(clk, &clock_list, node) { - unsigned long rate = clk_get_rate(clk); - - /* - * Don't bother listing dummy clocks with no ancestry - * that only support enable and disable ops. - */ - if (unlikely(!rate && !clk->parent)) - continue; - - seq_printf(m, "%-12s\t: %ld.%02ldMHz\n", clk->name, - rate / 1000000, (rate % 1000000) / 10000); - } + struct proc_dir_entry *p; + p = create_proc_read_entry("clocks", S_IRUSR, NULL, + show_clocks, NULL); + if (unlikely(!p)) + return -EINVAL; return 0; } - -EXPORT_SYMBOL_GPL(clk_register); -EXPORT_SYMBOL_GPL(clk_unregister); -EXPORT_SYMBOL_GPL(clk_get); -EXPORT_SYMBOL_GPL(clk_put); -EXPORT_SYMBOL_GPL(clk_enable); -EXPORT_SYMBOL_GPL(clk_disable); -EXPORT_SYMBOL_GPL(__clk_enable); -EXPORT_SYMBOL_GPL(__clk_disable); -EXPORT_SYMBOL_GPL(clk_get_rate); -EXPORT_SYMBOL_GPL(clk_set_rate); -EXPORT_SYMBOL_GPL(clk_recalc_rate); +subsys_initcall(clk_proc_init); diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c index 726acfc..6451ad6 100644 --- a/arch/sh/kernel/cpu/init.c +++ b/arch/sh/kernel/cpu/init.c @@ -41,6 +41,23 @@ __setup("no" __stringify(x), x##_setup); onchip_setup(fpu); onchip_setup(dsp); +#ifdef CONFIG_SPECULATIVE_EXECUTION +#define CPUOPM 0xff2f0000 +#define CPUOPM_RABD (1 << 5) + +static void __init speculative_execution_init(void) +{ + /* Clear RABD */ + ctrl_outl(ctrl_inl(CPUOPM) & ~CPUOPM_RABD, CPUOPM); + + /* Flush the update */ + (void)ctrl_inl(CPUOPM); + ctrl_barrier(); +} +#else +#define speculative_execution_init() do { } while (0) +#endif + /* * Generic first-level cache init */ @@ -261,4 +278,6 @@ asmlinkage void __init sh_cpu_init(void) */ ubc_wakeup(); #endif + + speculative_execution_init(); } diff --git a/arch/sh/kernel/cpu/irq/Makefile b/arch/sh/kernel/cpu/irq/Makefile index 0049d21..1c23308 100644 --- a/arch/sh/kernel/cpu/irq/Makefile +++ b/arch/sh/kernel/cpu/irq/Makefile @@ -4,6 +4,6 @@ obj-y += imask.o obj-$(CONFIG_CPU_HAS_IPR_IRQ) += ipr.o -obj-$(CONFIG_CPU_HAS_PINT_IRQ) += pint.o +obj-$(CONFIG_CPU_HAS_PINT_IRQ) += pint.o obj-$(CONFIG_CPU_HAS_MASKREG_IRQ) += maskreg.o obj-$(CONFIG_CPU_HAS_INTC2_IRQ) += intc2.o diff --git a/arch/sh/kernel/cpu/irq/intc2.c b/arch/sh/kernel/cpu/irq/intc2.c index 74defe7..d8e22f4 100644 --- a/arch/sh/kernel/cpu/irq/intc2.c +++ b/arch/sh/kernel/cpu/irq/intc2.c @@ -18,7 +18,8 @@ #define INTC2_BASE 0xfe080000 #define INTC2_INTMSK (INTC2_BASE + 0x40) #define INTC2_INTMSKCLR (INTC2_BASE + 0x60) -#elif defined(CONFIG_CPU_SUBTYPE_SH7780) +#elif defined(CONFIG_CPU_SUBTYPE_SH7780) || \ + defined(CONFIG_CPU_SUBTYPE_SH7785) #define INTC2_BASE 0xffd40000 #define INTC2_INTMSK (INTC2_BASE + 0x38) #define INTC2_INTMSKCLR (INTC2_BASE + 0x3c) diff --git a/arch/sh/kernel/cpu/irq/pint.c b/arch/sh/kernel/cpu/irq/pint.c index f600077..6760268 100644 --- a/arch/sh/kernel/cpu/irq/pint.c +++ b/arch/sh/kernel/cpu/irq/pint.c @@ -18,6 +18,58 @@ #include <asm/io.h> #include <asm/machvec.h> +#if defined(CONFIG_CPU_SUBTYPE_SH7705) +#define INTC_INTER 0xA4000014UL +#define INTC_IPRD 0xA4000018UL +#define INTC_ICR2 0xA4000012UL + +/* PFC */ +#define PORT_PACR 0xA4000100UL +#define PORT_PBCR 0xA4000102UL +#define PORT_PCCR 0xA4000104UL +#define PORT_PDCR 0xA4000106UL +#define PORT_PECR 0xA4000108UL +#define PORT_PFCR 0xA400010AUL +#define PORT_PGCR 0xA400010CUL +#define PORT_PHCR 0xA400010EUL +#define PORT_PJCR 0xA4000110UL +#define PORT_PKCR 0xA4000112UL +#define PORT_PLCR 0xA4000114UL +#define PORT_PMCR 0xA4000118UL +#define PORT_PNCR 0xA400011AUL +#define PORT_PECR2 0xA4050148UL +#define PORT_PFCR2 0xA405014AUL +#define PORT_PNCR2 0xA405015AUL + +/* I/O port */ +#define PORT_PADR 0xA4000120UL +#define PORT_PBDR 0xA4000122UL +#define PORT_PCDR 0xA4000124UL +#define PORT_PDDR 0xA4000126UL +#define PORT_PEDR 0xA4000128UL +#define PORT_PFDR 0xA400012AUL +#define PORT_PGDR 0xA400012CUL +#define PORT_PHDR 0xA400012EUL +#define PORT_PJDR 0xA4000130UL +#define PORT_PKDR 0xA4000132UL +#define PORT_PLDR 0xA4000134UL +#define PORT_PMDR 0xA4000138UL +#define PORT_PNDR 0xA400013AUL + +#define PINT0_IRQ 40 +#define PINT8_IRQ 41 +#define PINT_IRQ_BASE 86 + +#define PINT0_IPR_ADDR INTC_IPRD +#define PINT0_IPR_POS 3 +#define PINT0_PRIORITY 2 + +#define PINT8_IPR_ADDR INTC_IPRD +#define PINT8_IPR_POS 2 +#define PINT8_PRIORITY 2 + +#endif /* CONFIG_CPU_SUBTYPE_SH7705 */ + static unsigned char pint_map[256]; static unsigned long portcr_mask; @@ -126,7 +178,7 @@ int ipr_irq_demux(int irq) unsigned long creg, dreg, d, sav; if (irq == PINT0_IRQ) { -#if defined(CONFIG_CPU_SUBTYPE_SH7707) +#if defined(CONFIG_CPU_SUBTYPE_SH7705) || defined(CONFIG_CPU_SUBTYPE_SH7707) creg = PORT_PACR; dreg = PORT_PADR; #else @@ -144,7 +196,7 @@ int ipr_irq_demux(int irq) return PINT_IRQ_BASE + pint_map[d]; } else if (irq == PINT8_IRQ) { -#if defined(CONFIG_CPU_SUBTYPE_SH7707) +#if defined(CONFIG_CPU_SUBTYPE_SH7705) || defined(CONFIG_CPU_SUBTYPE_SH7707) creg = PORT_PBCR; dreg = PORT_PBDR; #else diff --git a/arch/sh/kernel/cpu/sh3/Makefile b/arch/sh/kernel/cpu/sh3/Makefile index 83905e4..09faa05 100644 --- a/arch/sh/kernel/cpu/sh3/Makefile +++ b/arch/sh/kernel/cpu/sh3/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7708) += setup-sh7708.o obj-$(CONFIG_CPU_SUBTYPE_SH7709) += setup-sh7709.o obj-$(CONFIG_CPU_SUBTYPE_SH7300) += setup-sh7300.o obj-$(CONFIG_CPU_SUBTYPE_SH7710) += setup-sh7710.o +obj-$(CONFIG_CPU_SUBTYPE_SH7712) += setup-sh7710.o # Primary on-chip clocks (common) clock-$(CONFIG_CPU_SH3) := clock-sh3.o diff --git a/arch/sh/kernel/cpu/sh3/probe.c b/arch/sh/kernel/cpu/sh3/probe.c index 821b0ab..647623b 100644 --- a/arch/sh/kernel/cpu/sh3/probe.c +++ b/arch/sh/kernel/cpu/sh3/probe.c @@ -78,6 +78,9 @@ int __init detect_cpu_and_cache_system(void) #if defined(CONFIG_CPU_SUBTYPE_SH7710) current_cpu_data.type = CPU_SH7710; #endif +#if defined(CONFIG_CPU_SUBTYPE_SH7712) + current_cpu_data.type = CPU_SH7712; +#endif #if defined(CONFIG_CPU_SUBTYPE_SH7705) current_cpu_data.type = CPU_SH7705; diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7705.c b/arch/sh/kernel/cpu/sh3/setup-sh7705.c index a8e41c5..1983fb7 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh7705.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh7705.c @@ -2,6 +2,7 @@ * SH7705 Setup * * Copyright (C) 2006 Paul Mundt + * Copyright (C) 2007 Nobuhiro Iwamatsu * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -14,15 +15,15 @@ static struct plat_sci_port sci_platform_data[] = { { - .mapbase = 0xa4400000, + .mapbase = 0xa4410000, .flags = UPF_BOOT_AUTOCONF, .type = PORT_SCIF, - .irqs = { 52, 53, 55, 54 }, + .irqs = { 56, 57, 59 }, }, { - .mapbase = 0xa4410000, + .mapbase = 0xa4400000, .flags = UPF_BOOT_AUTOCONF, .type = PORT_SCIF, - .irqs = { 56, 57, 59, 58 }, + .irqs = { 52, 53, 55 }, }, { .flags = 0, } @@ -46,3 +47,48 @@ static int __init sh7705_devices_setup(void) ARRAY_SIZE(sh7705_devices)); } __initcall(sh7705_devices_setup); + +static struct ipr_data sh7705_ipr_map[] = { + /* IRQ, IPR-idx, shift, priority */ + { 16, 0, 12, 2 }, /* TMU0 TUNI*/ + { 17, 0, 8, 2 }, /* TMU1 TUNI */ + { 18, 0, 4, 2 }, /* TMU2 TUNI */ + { 27, 1, 12, 2 }, /* WDT ITI */ + { 20, 0, 0, 2 }, /* RTC ATI (alarm) */ + { 21, 0, 0, 2 }, /* RTC PRI (period) */ + { 22, 0, 0, 2 }, /* RTC CUI (carry) */ + { 48, 4, 12, 7 }, /* DMAC DMTE0 */ + { 49, 4, 12, 7 }, /* DMAC DMTE1 */ + { 50, 4, 12, 7 }, /* DMAC DMTE2 */ + { 51, 4, 12, 7 }, /* DMAC DMTE3 */ + { 52, 4, 8, 3 }, /* SCIF0 ERI */ + { 53, 4, 8, 3 }, /* SCIF0 RXI */ + { 55, 4, 8, 3 }, /* SCIF0 TXI */ + { 56, 4, 4, 3 }, /* SCIF1 ERI */ + { 57, 4, 4, 3 }, /* SCIF1 RXI */ + { 59, 4, 4, 3 }, /* SCIF1 TXI */ +}; + +static unsigned long ipr_offsets[] = { + 0xFFFFFEE2 /* 0: IPRA */ +, 0xFFFFFEE4 /* 1: IPRB */ +, 0xA4000016 /* 2: IPRC */ +, 0xA4000018 /* 3: IPRD */ +, 0xA400001A /* 4: IPRE */ +, 0xA4080000 /* 5: IPRF */ +, 0xA4080002 /* 6: IPRG */ +, 0xA4080004 /* 7: IPRH */ +}; + +/* given the IPR index return the address of the IPR register */ +unsigned int map_ipridx_to_addr(int idx) +{ + if (idx >= ARRAY_SIZE(ipr_offsets)) + return 0; + return ipr_offsets[idx]; +} + +void __init init_IRQ_ipr() +{ + make_ipr_irq(sh7705_ipr_map, ARRAY_SIZE(sh7705_ipr_map)); +} diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7709.c b/arch/sh/kernel/cpu/sh3/setup-sh7709.c index dc9b211..c7d7c35 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh7709.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh7709.c @@ -48,24 +48,33 @@ static struct platform_device *sh7709_devices[] __initdata = { static int __init sh7709_devices_setup(void) { return platform_add_devices(sh7709_devices, - ARRAY_SIZE(sh7709_devices)); + ARRAY_SIZE(sh7709_devices)); } __initcall(sh7709_devices_setup); -#define IPRx(A,N) .addr=A, .shift=0*N*-1 +#define IPRx(A,N) .addr=A, .shift=N #define IPRA(N) IPRx(0xfffffee2UL,N) #define IPRB(N) IPRx(0xfffffee4UL,N) +#define IPRC(N) IPRx(0xa4000016UL,N) +#define IPRD(N) IPRx(0xa4000018UL,N) #define IPRE(N) IPRx(0xa400001aUL,N) static struct ipr_data sh7709_ipr_map[] = { - [16] = { IPRA(15-12), 2 }, /* TMU TUNI0 */ - [17] = { IPRA(11-8), 4 }, /* TMU TUNI1 */ - [22] = { IPRA(3-0), 2 }, /* RTC CUI */ - [23 ... 26] = { IPRB(7-4), 3 }, /* SCI */ - [27] = { IPRB(15-12), 2 }, /* WDT ITI */ - [48 ... 51] = { IPRE(15-12), 7 }, /* DMA */ - [52 ... 55] = { IPRE(11-8), 3 }, /* IRDA */ - [56 ... 59] = { IPRE(7-4), 3 }, /* SCIF */ + [16] = { IPRA(12), 2 }, /* TMU TUNI0 */ + [17] = { IPRA(8), 4 }, /* TMU TUNI1 */ + [18 ... 19] = { IPRA(4), 1 }, /* TMU TUNI1 */ + [20 ... 22] = { IPRA(0), 2 }, /* RTC CUI */ + [23 ... 26] = { IPRB(4), 3 }, /* SCI */ + [27] = { IPRB(12), 2 }, /* WDT ITI */ + [32] = { IPRC(0), 1 }, /* IRQ 0 */ + [33] = { IPRC(4), 1 }, /* IRQ 1 */ + [34] = { IPRC(8), 1 }, /* IRQ 2 APM */ + [35] = { IPRC(12), 1 }, /* IRQ 3 TOUCHSCREEN */ + [36] = { IPRD(0), 1 }, /* IRQ 4 */ + [37] = { IPRD(4), 1 }, /* IRQ 5 */ + [48 ... 51] = { IPRE(12), 7 }, /* DMA */ + [52 ... 55] = { IPRE(8), 3 }, /* IRDA */ + [56 ... 59] = { IPRE(4), 3 }, /* SCIF */ }; void __init init_IRQ_ipr() diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7710.c b/arch/sh/kernel/cpu/sh3/setup-sh7710.c index 895f99e..51760a7 100644 --- a/arch/sh/kernel/cpu/sh3/setup-sh7710.c +++ b/arch/sh/kernel/cpu/sh3/setup-sh7710.c @@ -2,6 +2,7 @@ * SH7710 Setup * * Copyright (C) 2006 Paul Mundt + * Copyright (C) 2007 Nobuhiro Iwamatsu * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -19,6 +20,12 @@ static struct plat_sci_port sci_platform_data[] = { .type = PORT_SCIF, .irqs = { 52, 53, 55, 54 }, }, { + .mapbase = 0xa4420000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 56, 57, 59, 58 }, + }, { + .flags = 0, } }; @@ -41,3 +48,56 @@ static int __init sh7710_devices_setup(void) ARRAY_SIZE(sh7710_devices)); } __initcall(sh7710_devices_setup); + +static struct ipr_data sh7710_ipr_map[] = { + /* IRQ, IPR-idx, shift, priority */ + { 16, 0, 12, 2 }, /* TMU0 TUNI*/ + { 17, 0, 8, 2 }, /* TMU1 TUNI */ + { 18, 0, 4, 2 }, /* TMU2 TUNI */ + { 27, 1, 12, 2 }, /* WDT ITI */ + { 20, 0, 0, 2 }, /* RTC ATI (alarm) */ + { 21, 0, 0, 2 }, /* RTC PRI (period) */ + { 22, 0, 0, 2 }, /* RTC CUI (carry) */ + { 48, 4, 12, 7 }, /* DMAC DMTE0 */ + { 49, 4, 12, 7 }, /* DMAC DMTE1 */ + { 50, 4, 12, 7 }, /* DMAC DMTE2 */ + { 51, 4, 12, 7 }, /* DMAC DMTE3 */ + { 52, 4, 8, 3 }, /* SCIF0 ERI */ + { 53, 4, 8, 3 }, /* SCIF0 RXI */ + { 54, 4, 8, 3 }, /* SCIF0 BRI */ + { 55, 4, 8, 3 }, /* SCIF0 TXI */ + { 56, 4, 4, 3 }, /* SCIF1 ERI */ + { 57, 4, 4, 3 }, /* SCIF1 RXI */ + { 58, 4, 4, 3 }, /* SCIF1 BRI */ + { 59, 4, 4, 3 }, /* SCIF1 TXI */ + { 76, 5, 8, 7 }, /* DMAC DMTE4 */ + { 77, 5, 8, 7 }, /* DMAC DMTE5 */ + { 80, 6, 12, 5 }, /* EDMAC EINT0 */ + { 81, 6, 8, 5 }, /* EDMAC EINT1 */ + { 82, 6, 4, 5 }, /* EDMAC EINT2 */ +}; + +static unsigned long ipr_offsets[] = { + 0xA414FEE2 /* 0: IPRA */ +, 0xA414FEE4 /* 1: IPRB */ +, 0xA4140016 /* 2: IPRC */ +, 0xA4140018 /* 3: IPRD */ +, 0xA414001A /* 4: IPRE */ +, 0xA4080000 /* 5: IPRF */ +, 0xA4080002 /* 6: IPRG */ +, 0xA4080004 /* 7: IPRH */ +, 0xA4080006 /* 8: IPRI */ +}; + +/* given the IPR index return the address of the IPR register */ +unsigned int map_ipridx_to_addr(int idx) +{ + if (idx >= ARRAY_SIZE(ipr_offsets)) + return 0; + return ipr_offsets[idx]; +} + +void __init init_IRQ_ipr() +{ + make_ipr_irq(sh7710_ipr_map, ARRAY_SIZE(sh7710_ipr_map)); +} diff --git a/arch/sh/kernel/cpu/sh4/clock-sh4-202.c b/arch/sh/kernel/cpu/sh4/clock-sh4-202.c index fa2019a..fcb2c41b 100644 --- a/arch/sh/kernel/cpu/sh4/clock-sh4-202.c +++ b/arch/sh/kernel/cpu/sh4/clock-sh4-202.c @@ -82,7 +82,8 @@ static void shoc_clk_init(struct clk *clk) for (i = 0; i < ARRAY_SIZE(frqcr3_divisors); i++) { int divisor = frqcr3_divisors[i]; - if (clk->ops->set_rate(clk, clk->parent->rate / divisor) == 0) + if (clk->ops->set_rate(clk, clk->parent->rate / + divisor, 0) == 0) break; } diff --git a/arch/sh/kernel/cpu/sh4/probe.c b/arch/sh/kernel/cpu/sh4/probe.c index 58950de..8cd0490 100644 --- a/arch/sh/kernel/cpu/sh4/probe.c +++ b/arch/sh/kernel/cpu/sh4/probe.c @@ -124,6 +124,14 @@ int __init detect_cpu_and_cache_system(void) current_cpu_data.dcache.ways = 4; current_cpu_data.flags |= CPU_HAS_LLSC; break; + case 0x3004: + case 0x3007: + current_cpu_data.type = CPU_SH7785; + current_cpu_data.icache.ways = 4; + current_cpu_data.dcache.ways = 4; + current_cpu_data.flags |= CPU_HAS_FPU | CPU_HAS_PERF_COUNTER | + CPU_HAS_LLSC; + break; case 0x3008: if (prr == 0xa0) { current_cpu_data.type = CPU_SH7722; diff --git a/arch/sh/kernel/cpu/sh4a/Makefile b/arch/sh/kernel/cpu/sh4a/Makefile index a8f493f..ab7422f 100644 --- a/arch/sh/kernel/cpu/sh4a/Makefile +++ b/arch/sh/kernel/cpu/sh4a/Makefile @@ -5,6 +5,7 @@ # CPU subtype setup obj-$(CONFIG_CPU_SUBTYPE_SH7770) += setup-sh7770.o obj-$(CONFIG_CPU_SUBTYPE_SH7780) += setup-sh7780.o +obj-$(CONFIG_CPU_SUBTYPE_SH7785) += setup-sh7785.o obj-$(CONFIG_CPU_SUBTYPE_SH73180) += setup-sh73180.o obj-$(CONFIG_CPU_SUBTYPE_SH7343) += setup-sh7343.o obj-$(CONFIG_CPU_SUBTYPE_SH7722) += setup-sh7722.o @@ -13,7 +14,8 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7722) += setup-sh7722.o clock-$(CONFIG_CPU_SUBTYPE_SH73180) := clock-sh73180.o clock-$(CONFIG_CPU_SUBTYPE_SH7770) := clock-sh7770.o clock-$(CONFIG_CPU_SUBTYPE_SH7780) := clock-sh7780.o +clock-$(CONFIG_CPU_SUBTYPE_SH7785) := clock-sh7785.o clock-$(CONFIG_CPU_SUBTYPE_SH7343) := clock-sh7343.o -clock-$(CONFIG_CPU_SUBTYPE_SH7722) := clock-sh7343.o +clock-$(CONFIG_CPU_SUBTYPE_SH7722) := clock-sh7722.o obj-y += $(clock-y) diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c new file mode 100644 index 0000000..2909003 --- /dev/null +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c @@ -0,0 +1,600 @@ +/* + * arch/sh/kernel/cpu/sh4a/clock-sh7722.c + * + * SH7722 support for the clock framework + * + * Copyright (c) 2006-2007 Nomad Global Solutions Inc + * Based on code for sh7343 by Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/errno.h> +#include <asm/clock.h> +#include <asm/freq.h> + +#define SH7722_PLL_FREQ (32000000/8) +#define N (-1) +#define NM (-2) +#define ROUND_NEAREST 0 +#define ROUND_DOWN -1 +#define ROUND_UP +1 + +static int adjust_algos[][3] = { + {}, /* NO_CHANGE */ + { NM, N, 1 }, /* N:1, N:1 */ + { 3, 2, 2 }, /* 3:2:2 */ + { 5, 2, 2 }, /* 5:2:2 */ + { N, 1, 1 }, /* N:1:1 */ + + { N, 1 }, /* N:1 */ + + { N, 1 }, /* N:1 */ + { 3, 2 }, + { 4, 3 }, + { 5, 4 }, + + { N, 1 } +}; + +static unsigned long adjust_pair_of_clocks(unsigned long r1, unsigned long r2, + int m1, int m2, int round_flag) +{ + unsigned long rem, div; + int the_one = 0; + + pr_debug( "Actual values: r1 = %ld\n", r1); + pr_debug( "...............r2 = %ld\n", r2); + + if (m1 == m2) { + r2 = r1; + pr_debug( "setting equal rates: r2 now %ld\n", r2); + } else if ((m2 == N && m1 == 1) || + (m2 == NM && m1 == N)) { /* N:1 or NM:N */ + pr_debug( "Setting rates as 1:N (N:N*M)\n"); + rem = r2 % r1; + pr_debug( "...remainder = %ld\n", rem); + if (rem) { + div = r2 / r1; + pr_debug( "...div = %ld\n", div); + switch (round_flag) { + case ROUND_NEAREST: + the_one = rem >= r1/2 ? 1 : 0; break; + case ROUND_UP: + the_one = 1; break; + case ROUND_DOWN: + the_one = 0; break; + } + + r2 = r1 * (div + the_one); + pr_debug( "...setting r2 to %ld\n", r2); + } + } else if ((m2 == 1 && m1 == N) || + (m2 == N && m1 == NM)) { /* 1:N or N:NM */ + pr_debug( "Setting rates as N:1 (N*M:N)\n"); + rem = r1 % r2; + pr_debug( "...remainder = %ld\n", rem); + if (rem) { + div = r1 / r2; + pr_debug( "...div = %ld\n", div); + switch (round_flag) { + case ROUND_NEAREST: + the_one = rem > r2/2 ? 1 : 0; break; + case ROUND_UP: + the_one = 0; break; + case ROUND_DOWN: + the_one = 1; break; + } + + r2 = r1 / (div + the_one); + pr_debug( "...setting r2 to %ld\n", r2); + } + } else { /* value:value */ + pr_debug( "Setting rates as %d:%d\n", m1, m2); + div = r1 / m1; + r2 = div * m2; + pr_debug( "...div = %ld\n", div); + pr_debug( "...setting r2 to %ld\n", r2); + } + + return r2; +} + +static void adjust_clocks(int originate, int *l, unsigned long v[], + int n_in_line) +{ + int x; + + pr_debug( "Go down from %d...\n", originate); + /* go up recalculation clocks */ + for (x = originate; x>0; x -- ) + v[x-1] = adjust_pair_of_clocks(v[x], v[x-1], + l[x], l[x-1], + ROUND_UP); + + pr_debug( "Go up from %d...\n", originate); + /* go down recalculation clocks */ + for (x = originate; x<n_in_line - 1; x ++ ) + v[x+1] = adjust_pair_of_clocks(v[x], v[x+1], + l[x], l[x+1], + ROUND_UP); +} + + +/* + * SH7722 uses a common set of multipliers and divisors, so this + * is quite simple.. + */ + +/* + * Instead of having two separate multipliers/divisors set, like this: + * + * static int multipliers[] = { 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1 }; + * static int divisors[] = { 1, 3, 2, 5, 3, 4, 5, 6, 8, 10, 12, 16, 20 }; + * + * I created the divisors2 array, which is used to calculate rate like + * rate = parent * 2 / divisors2[ divisor ]; +*/ +static int divisors2[] = { 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 32, 40 }; + +static void master_clk_init(struct clk *clk) +{ + clk_set_rate(clk, clk_get_rate(clk)); +} + +static void master_clk_recalc(struct clk *clk) +{ + unsigned long frqcr = ctrl_inl(FRQCR); + + clk->rate = CONFIG_SH_PCLK_FREQ * (1 + (frqcr >> 24 & 0xF)); +} + +static int master_clk_setrate(struct clk *clk, unsigned long rate, int id) +{ + int div = rate / SH7722_PLL_FREQ; + int master_divs[] = { 2, 3, 4, 6, 8, 16 }; + int index; + unsigned long frqcr; + + if (rate < SH7722_PLL_FREQ * 2) + return -EINVAL; + + for (index = 1; index < ARRAY_SIZE(master_divs); index++) + if (div >= master_divs[index - 1] && div < master_divs[index]) + break; + + if (index >= ARRAY_SIZE(master_divs)) + index = ARRAY_SIZE(master_divs); + div = master_divs[index - 1]; + + frqcr = ctrl_inl(FRQCR); + frqcr &= ~(0xF << 24); + frqcr |= ( (div-1) << 24); + ctrl_outl(frqcr, FRQCR); + + return 0; +} + +static struct clk_ops sh7722_master_clk_ops = { + .init = master_clk_init, + .recalc = master_clk_recalc, + .set_rate = master_clk_setrate, +}; + +struct frqcr_context { + unsigned mask; + unsigned shift; +}; + +struct frqcr_context sh7722_get_clk_context(const char *name) +{ + struct frqcr_context ctx = { 0, }; + + if (!strcmp(name, "peripheral_clk")) { + ctx.shift = 0; + ctx.mask = 0xF; + } else if (!strcmp(name, "sdram_clk")) { + ctx.shift = 4; + ctx.mask = 0xF; + } else if (!strcmp(name, "bus_clk")) { + ctx.shift = 8; + ctx.mask = 0xF; + } else if (!strcmp(name, "sh_clk")) { + ctx.shift = 12; + ctx.mask = 0xF; + } else if (!strcmp(name, "umem_clk")) { + ctx.shift = 16; + ctx.mask = 0xF; + } else if (!strcmp(name, "cpu_clk")) { + ctx.shift = 20; + ctx.mask = 7; + } + return ctx; +} + +/** + * sh7722_find_divisors - find divisor for setting rate + * + * All sh7722 clocks use the same set of multipliers/divisors. This function + * chooses correct divisor to set the rate of clock with parent clock that + * generates frequency of 'parent_rate' + * + * @parent_rate: rate of parent clock + * @rate: requested rate to be set + */ +static int sh7722_find_divisors(unsigned long parent_rate, unsigned rate) +{ + unsigned div2 = parent_rate * 2 / rate; + int index; + + if (rate > parent_rate) + return -EINVAL; + + for (index = 1; index < ARRAY_SIZE(divisors2); index++) { + if (div2 > divisors2[index] && div2 <= divisors2[index]) + break; + } + if (index >= ARRAY_SIZE(divisors2)) + index = ARRAY_SIZE(divisors2) - 1; + return divisors2[index]; +} + +static void sh7722_frqcr_recalc(struct clk *clk) +{ + struct frqcr_context ctx = sh7722_get_clk_context(clk->name); + unsigned long frqcr = ctrl_inl(FRQCR); + int index; + + index = (frqcr >> ctx.shift) & ctx.mask; + clk->rate = clk->parent->rate * 2 / divisors2[index]; +} + +static int sh7722_frqcr_set_rate(struct clk *clk, unsigned long rate, + int algo_id) +{ + struct frqcr_context ctx = sh7722_get_clk_context(clk->name); + unsigned long parent_rate = clk->parent->rate; + int div; + unsigned long frqcr; + int err = 0; + + /* pretty invalid */ + if (parent_rate < rate) + return -EINVAL; + + /* look for multiplier/divisor pair */ + div = sh7722_find_divisors(parent_rate, rate); + if (div<0) + return div; + + /* calculate new value of clock rate */ + clk->rate = parent_rate * 2 / div; + frqcr = ctrl_inl(FRQCR); + + /* FIXME: adjust as algo_id specifies */ + if (algo_id != NO_CHANGE) { + int originator; + char *algo_group_1[] = { "cpu_clk", "umem_clk", "sh_clk" }; + char *algo_group_2[] = { "sh_clk", "bus_clk" }; + char *algo_group_3[] = { "sh_clk", "sdram_clk" }; + char *algo_group_4[] = { "bus_clk", "peripheral_clk" }; + char *algo_group_5[] = { "cpu_clk", "peripheral_clk" }; + char **algo_current = NULL; + /* 3 is the maximum number of clocks in relation */ + struct clk *ck[3]; + unsigned long values[3]; /* the same comment as above */ + int part_length = -1; + int i; + + /* + * all the steps below only required if adjustion was + * requested + */ + if (algo_id == IUS_N1_N1 || + algo_id == IUS_322 || + algo_id == IUS_522 || + algo_id == IUS_N11) { + algo_current = algo_group_1; + part_length = 3; + } + if (algo_id == SB_N1) { + algo_current = algo_group_2; + part_length = 2; + } + if (algo_id == SB3_N1 || + algo_id == SB3_32 || + algo_id == SB3_43 || + algo_id == SB3_54) { + algo_current = algo_group_3; + part_length = 2; + } + if (algo_id == BP_N1) { + algo_current = algo_group_4; + part_length = 2; + } + if (algo_id == IP_N1) { + algo_current = algo_group_5; + part_length = 2; + } + if (!algo_current) + goto incorrect_algo_id; + + originator = -1; + for (i = 0; i < part_length; i ++ ) { + if (originator >= 0 && !strcmp(clk->name, + algo_current[i])) + originator = i; + ck[i] = clk_get(NULL, algo_current[i]); + values[i] = clk_get_rate(ck[i]); + } + + if (originator >= 0) + adjust_clocks(originator, adjust_algos[algo_id], + values, part_length); + + for (i = 0; i < part_length; i ++ ) { + struct frqcr_context part_ctx; + int part_div; + + if (likely(!err)) { + part_div = sh7722_find_divisors(parent_rate, + rate); + if (part_div > 0) { + part_ctx = sh7722_get_clk_context( + ck[i]->name); + frqcr &= ~(part_ctx.mask << + part_ctx.shift); + frqcr |= part_div << part_ctx.shift; + } else + err = part_div; + } + + ck[i]->ops->recalc(ck[i]); + clk_put(ck[i]); + } + } + + /* was there any error during recalculation ? If so, bail out.. */ + if (unlikely(err!=0)) + goto out_err; + + /* clear FRQCR bits */ + frqcr &= ~(ctx.mask << ctx.shift); + frqcr |= div << ctx.shift; + + /* ...and perform actual change */ + ctrl_outl(frqcr, FRQCR); + return 0; + +incorrect_algo_id: + return -EINVAL; +out_err: + return err; +} + +static struct clk_ops sh7722_frqcr_clk_ops = { + .recalc = sh7722_frqcr_recalc, + .set_rate = sh7722_frqcr_set_rate, +}; + +/* + * clock ops methods for SIU A/B and IrDA clock + * + */ +static int sh7722_siu_which(struct clk *clk) +{ + if (!strcmp(clk->name, "siu_a_clk")) + return 0; + if (!strcmp(clk->name, "siu_b_clk")) + return 1; + if (!strcmp(clk->name, "irda_clk")) + return 2; + return -EINVAL; +} + +static unsigned long sh7722_siu_regs[] = { + [0] = SCLKACR, + [1] = SCLKBCR, + [2] = IrDACLKCR, +}; + +static int sh7722_siu_start_stop(struct clk *clk, int enable) +{ + int siu = sh7722_siu_which(clk); + unsigned long r; + + if (siu < 0) + return siu; + BUG_ON(siu > 2); + r = ctrl_inl(sh7722_siu_regs[siu]); + if (enable) + ctrl_outl(r & ~(1 << 8), sh7722_siu_regs[siu]); + else + ctrl_outl(r | (1 << 8), sh7722_siu_regs[siu]); + return 0; +} + +static void sh7722_siu_enable(struct clk *clk) +{ + sh7722_siu_start_stop(clk, 1); +} + +static void sh7722_siu_disable(struct clk *clk) +{ + sh7722_siu_start_stop(clk, 0); +} + +static void sh7722_video_enable(struct clk *clk) +{ + unsigned long r; + + r = ctrl_inl(VCLKCR); + ctrl_outl( r & ~(1<<8), VCLKCR); +} + +static void sh7722_video_disable(struct clk *clk) +{ + unsigned long r; + + r = ctrl_inl(VCLKCR); + ctrl_outl( r | (1<<8), VCLKCR); +} + +static int sh7722_video_set_rate(struct clk *clk, unsigned long rate, + int algo_id) +{ + unsigned long r; + + r = ctrl_inl(VCLKCR); + r &= ~0x3F; + r |= ((clk->parent->rate / rate - 1) & 0x3F); + ctrl_outl(r, VCLKCR); + return 0; +} + +static void sh7722_video_recalc(struct clk *clk) +{ + unsigned long r; + + r = ctrl_inl(VCLKCR); + clk->rate = clk->parent->rate / ((r & 0x3F) + 1); +} + +static int sh7722_siu_set_rate(struct clk *clk, unsigned long rate, int algo_id) +{ + int siu = sh7722_siu_which(clk); + unsigned long r; + int div; + + if (siu < 0) + return siu; + BUG_ON(siu > 2); + r = ctrl_inl(sh7722_siu_regs[siu]); + div = sh7722_find_divisors(clk->parent->rate, rate); + if (div < 0) + return div; + r = (r & ~0xF) | div; + ctrl_outl(r, sh7722_siu_regs[siu]); + return 0; +} + +static void sh7722_siu_recalc(struct clk *clk) +{ + int siu = sh7722_siu_which(clk); + unsigned long r; + + if (siu < 0) + return /* siu */ ; + BUG_ON(siu > 1); + r = ctrl_inl(sh7722_siu_regs[siu]); + clk->rate = clk->parent->rate * 2 / divisors2[r & 0xF]; +} + +static struct clk_ops sh7722_siu_clk_ops = { + .recalc = sh7722_siu_recalc, + .set_rate = sh7722_siu_set_rate, + .enable = sh7722_siu_enable, + .disable = sh7722_siu_disable, +}; + +static struct clk_ops sh7722_video_clk_ops = { + .recalc = sh7722_video_recalc, + .set_rate = sh7722_video_set_rate, + .enable = sh7722_video_enable, + .disable = sh7722_video_disable, +}; +/* + * and at last, clock definitions themselves + */ +static struct clk sh7722_umem_clock = { + .name = "umem_clk", + .ops = &sh7722_frqcr_clk_ops, +}; + +static struct clk sh7722_sh_clock = { + .name = "sh_clk", + .ops = &sh7722_frqcr_clk_ops, +}; + +static struct clk sh7722_peripheral_clock = { + .name = "peripheral_clk", + .ops = &sh7722_frqcr_clk_ops, +}; + +static struct clk sh7722_sdram_clock = { + .name = "sdram_clk", + .ops = &sh7722_frqcr_clk_ops, +}; + +/* + * these three clocks - SIU A, SIU B, IrDA - share the same clk_ops + * methods of clk_ops determine which register they should access by + * examining clk->name field + */ +static struct clk sh7722_siu_a_clock = { + .name = "siu_a_clk", + .ops = &sh7722_siu_clk_ops, +}; + +static struct clk sh7722_siu_b_clock = { + .name = "siu_b_clk", + .ops = &sh7722_siu_clk_ops, +}; + +static struct clk sh7722_irda_clock = { + .name = "irda_clk", + .ops = &sh7722_siu_clk_ops, +}; + +static struct clk sh7722_video_clock = { + .name = "video_clk", + .ops = &sh7722_video_clk_ops, +}; + +static struct clk *sh7722_clocks[] = { + &sh7722_umem_clock, + &sh7722_sh_clock, + &sh7722_peripheral_clock, + &sh7722_sdram_clock, + &sh7722_siu_a_clock, + &sh7722_siu_b_clock, + &sh7722_irda_clock, + &sh7722_video_clock, +}; + +/* + * init in order: master, module, bus, cpu + */ +struct clk_ops *onchip_ops[] = { + &sh7722_master_clk_ops, + &sh7722_frqcr_clk_ops, + &sh7722_frqcr_clk_ops, + &sh7722_frqcr_clk_ops, +}; + +void __init +arch_init_clk_ops(struct clk_ops **ops, int type) +{ + BUG_ON(type < 0 || type > ARRAY_SIZE(onchip_ops)); + *ops = onchip_ops[type]; +} + +int __init sh7722_clock_init(void) +{ + struct clk *master; + int i; + + master = clk_get(NULL, "master_clk"); + for (i = 0; i < ARRAY_SIZE(sh7722_clocks); i++) { + pr_debug( "Registering clock '%s'\n", sh7722_clocks[i]->name); + sh7722_clocks[i]->parent = master; + clk_register(sh7722_clocks[i]); + } + clk_put(master); + return 0; +} +arch_initcall(sh7722_clock_init); diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7785.c b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c new file mode 100644 index 0000000..805535a --- /dev/null +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c @@ -0,0 +1,162 @@ +/* + * arch/sh/kernel/cpu/sh4a/clock-sh7785.c + * + * SH7785 support for the clock framework + * + * Copyright (C) 2007 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <linux/kernel.h> +#include <asm/clock.h> +#include <asm/freq.h> +#include <asm/io.h> + +static int ifc_divisors[] = { 1, 2, 4, 6 }; +static int ufc_divisors[] = { 1, 1, 4, 6 }; +static int sfc_divisors[] = { 1, 1, 4, 6 }; +static int bfc_divisors[] = { 1, 1, 1, 1, 1, 12, 16, 18, + 24, 32, 36, 48, 1, 1, 1, 1 }; +static int mfc_divisors[] = { 1, 1, 4, 6 }; +static int pfc_divisors[] = { 1, 1, 1, 1, 1, 1, 1, 18, + 24, 32, 36, 48, 1, 1, 1, 1 }; + +static void master_clk_init(struct clk *clk) +{ + clk->rate *= 36; +} + +static struct clk_ops sh7785_master_clk_ops = { + .init = master_clk_init, +}; + +static void module_clk_recalc(struct clk *clk) +{ + int idx = (ctrl_inl(FRQMR1) & 0x000f); + clk->rate = clk->parent->rate / pfc_divisors[idx]; +} + +static struct clk_ops sh7785_module_clk_ops = { + .recalc = module_clk_recalc, +}; + +static void bus_clk_recalc(struct clk *clk) +{ + int idx = ((ctrl_inl(FRQMR1) >> 16) & 0x000f); + clk->rate = clk->parent->rate / bfc_divisors[idx]; +} + +static struct clk_ops sh7785_bus_clk_ops = { + .recalc = bus_clk_recalc, +}; + +static void cpu_clk_recalc(struct clk *clk) +{ + int idx = ((ctrl_inl(FRQMR1) >> 28) & 0x0003); + clk->rate = clk->parent->rate / ifc_divisors[idx]; +} + +static struct clk_ops sh7785_cpu_clk_ops = { + .recalc = cpu_clk_recalc, +}; + +static struct clk_ops *sh7785_clk_ops[] = { + &sh7785_master_clk_ops, + &sh7785_module_clk_ops, + &sh7785_bus_clk_ops, + &sh7785_cpu_clk_ops, +}; + +void __init arch_init_clk_ops(struct clk_ops **ops, int idx) +{ + if (idx < ARRAY_SIZE(sh7785_clk_ops)) + *ops = sh7785_clk_ops[idx]; +} + +static void shyway_clk_recalc(struct clk *clk) +{ + int idx = ((ctrl_inl(FRQMR1) >> 20) & 0x0003); + clk->rate = clk->parent->rate / sfc_divisors[idx]; +} + +static struct clk_ops sh7785_shyway_clk_ops = { + .recalc = shyway_clk_recalc, +}; + +static struct clk sh7785_shyway_clk = { + .name = "shyway_clk", + .flags = CLK_ALWAYS_ENABLED, + .ops = &sh7785_shyway_clk_ops, +}; + +static void ddr_clk_recalc(struct clk *clk) +{ + int idx = ((ctrl_inl(FRQMR1) >> 12) & 0x0003); + clk->rate = clk->parent->rate / mfc_divisors[idx]; +} + +static struct clk_ops sh7785_ddr_clk_ops = { + .recalc = ddr_clk_recalc, +}; + +static struct clk sh7785_ddr_clk = { + .name = "ddr_clk", + .flags = CLK_ALWAYS_ENABLED, + .ops = &sh7785_ddr_clk_ops, +}; + +static void ram_clk_recalc(struct clk *clk) +{ + int idx = ((ctrl_inl(FRQMR1) >> 24) & 0x0003); + clk->rate = clk->parent->rate / ufc_divisors[idx]; +} + +static struct clk_ops sh7785_ram_clk_ops = { + .recalc = ram_clk_recalc, +}; + +static struct clk sh7785_ram_clk = { + .name = "ram_clk", + .flags = CLK_ALWAYS_ENABLED, + .ops = &sh7785_ram_clk_ops, +}; + +/* + * Additional SH7785-specific on-chip clocks that aren't already part of the + * clock framework + */ +static struct clk *sh7785_onchip_clocks[] = { + &sh7785_shyway_clk, + &sh7785_ddr_clk, + &sh7785_ram_clk, +}; + +static int __init sh7785_clk_init(void) +{ + struct clk *clk = clk_get(NULL, "master_clk"); + int i; + + for (i = 0; i < ARRAY_SIZE(sh7785_onchip_clocks); i++) { + struct clk *clkp = sh7785_onchip_clocks[i]; + + clkp->parent = clk; + clk_register(clkp); + clk_enable(clkp); + } + + /* + * Now that we have the rest of the clocks registered, we need to + * force the parent clock to propagate so that these clocks will + * automatically figure out their rate. We cheat by handing the + * parent clock its current rate and forcing child propagation. + */ + clk_set_rate(clk, clk_get_rate(clk)); + + clk_put(clk); + + return 0; +} +arch_initcall(sh7785_clk_init); diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c new file mode 100644 index 0000000..07b0de8 --- /dev/null +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c @@ -0,0 +1,103 @@ +/* + * SH7785 Setup + * + * Copyright (C) 2007 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <asm/sci.h> + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xffea0000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 40, 41, 43, 42 }, + }, { + .mapbase = 0xffeb0000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 44, 45, 47, 46 }, + }, + + /* + * The rest of these all have multiplexed IRQs + */ + { + .mapbase = 0xffec0000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 60, 60, 60, 60 }, + }, { + .mapbase = 0xffed0000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 61, 61, 61, 61 }, + }, { + .mapbase = 0xffee0000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 62, 62, 62, 62 }, + }, { + .mapbase = 0xffef0000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 63, 63, 63, 63 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7785_devices[] __initdata = { + &sci_device, +}; + +static int __init sh7785_devices_setup(void) +{ + return platform_add_devices(sh7785_devices, + ARRAY_SIZE(sh7785_devices)); +} +__initcall(sh7785_devices_setup); + +static struct intc2_data intc2_irq_table[] = { + { 28, 0, 24, 0, 0, 2 }, /* TMU0 */ + + { 40, 8, 24, 0, 2, 3 }, /* SCIF0 ERI */ + { 41, 8, 24, 0, 2, 3 }, /* SCIF0 RXI */ + { 42, 8, 24, 0, 2, 3 }, /* SCIF0 BRI */ + { 43, 8, 24, 0, 2, 3 }, /* SCIF0 TXI */ + + { 44, 8, 16, 0, 3, 3 }, /* SCIF1 ERI */ + { 45, 8, 16, 0, 3, 3 }, /* SCIF1 RXI */ + { 46, 8, 16, 0, 3, 3 }, /* SCIF1 BRI */ + { 47, 8, 16, 0, 3, 3 }, /* SCIF1 TXI */ + + { 64, 0x14, 8, 0, 14, 2 }, /* PCIC0 */ + { 65, 0x14, 0, 0, 15, 2 }, /* PCIC1 */ + { 66, 0x18, 24, 0, 16, 2 }, /* PCIC2 */ + { 67, 0x18, 16, 0, 17, 2 }, /* PCIC3 */ + { 68, 0x18, 8, 0, 18, 2 }, /* PCIC4 */ + + { 60, 8, 8, 0, 4, 3 }, /* SCIF2 ERI, RXI, BRI, TXI */ + { 60, 8, 0, 0, 5, 3 }, /* SCIF3 ERI, RXI, BRI, TXI */ + { 60, 12, 24, 0, 6, 3 }, /* SCIF4 ERI, RXI, BRI, TXI */ + { 60, 12, 16, 0, 7, 3 }, /* SCIF5 ERI, RXI, BRI, TXI */ +}; + +void __init init_IRQ_intc2(void) +{ + make_intc2_irq(intc2_irq_table, ARRAY_SIZE(intc2_irq_table)); +} diff --git a/arch/sh/kernel/crash_dump.c b/arch/sh/kernel/crash_dump.c new file mode 100644 index 0000000..4a2ecbe --- /dev/null +++ b/arch/sh/kernel/crash_dump.c @@ -0,0 +1,46 @@ +/* + * crash_dump.c - Memory preserving reboot related code. + * + * Created by: Hariprasad Nellitheertha (hari@in.ibm.com) + * Copyright (C) IBM Corporation, 2004. All rights reserved + */ + +#include <linux/errno.h> +#include <linux/crash_dump.h> +#include <linux/io.h> +#include <asm/uaccess.h> + +/** + * copy_oldmem_page - copy one page from "oldmem" + * @pfn: page frame number to be copied + * @buf: target memory address for the copy; this can be in kernel address + * space or user address space (see @userbuf) + * @csize: number of bytes to copy + * @offset: offset in bytes into the page (based on pfn) to begin the copy + * @userbuf: if set, @buf is in user address space, use copy_to_user(), + * otherwise @buf is in kernel address space, use memcpy(). + * + * Copy a page from "oldmem". For this page, there is no pte mapped + * in the current kernel. We stitch up a pte, similar to kmap_atomic. + */ +ssize_t copy_oldmem_page(unsigned long pfn, char *buf, + size_t csize, unsigned long offset, int userbuf) +{ + void *vaddr; + + if (!csize) + return 0; + + vaddr = ioremap(pfn << PAGE_SHIFT, PAGE_SIZE); + + if (userbuf) { + if (copy_to_user(buf, (vaddr + offset), csize)) { + iounmap(vaddr); + return -EFAULT; + } + } else + memcpy(buf, (vaddr + offset), csize); + + iounmap(vaddr); + return csize; +} diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c index 9bdd8a0..27b923c 100644 --- a/arch/sh/kernel/irq.c +++ b/arch/sh/kernel/irq.c @@ -13,6 +13,7 @@ #include <linux/seq_file.h> #include <linux/irq.h> #include <asm/processor.h> +#include <asm/machvec.h> #include <asm/uaccess.h> #include <asm/thread_info.h> #include <asm/cpu/mmu_context.h> @@ -44,7 +45,7 @@ int show_interrupts(struct seq_file *p, void *v) seq_putc(p, '\n'); } - if (i < NR_IRQS) { + if (i < sh_mv.mv_nr_irqs) { spin_lock_irqsave(&irq_desc[i].lock, flags); action = irq_desc[i].action; if (!action) @@ -61,7 +62,7 @@ int show_interrupts(struct seq_file *p, void *v) seq_putc(p, '\n'); unlock: spin_unlock_irqrestore(&irq_desc[i].lock, flags); - } else if (i == NR_IRQS) + } else if (i == sh_mv.mv_nr_irqs) seq_printf(p, "Err: %10u\n", atomic_read(&irq_err_count)); return 0; diff --git a/arch/sh/kernel/kgdb_stub.c b/arch/sh/kernel/kgdb_stub.c index d8927d8..a532336 100644 --- a/arch/sh/kernel/kgdb_stub.c +++ b/arch/sh/kernel/kgdb_stub.c @@ -6,11 +6,11 @@ * David Grothe <dave@gcom.com>, Tigran Aivazian <tigran@sco.com>, * Amit S. Kale <akale@veritas.com>, William Gatliff <bgat@open-widgets.com>, * Ben Lee, Steve Chamberlain and Benoit Miller <fulg@iname.com>. - * + * * This version by Henry Bell <henry.bell@st.com> * Minor modifications by Jeremy Siegel <jsiegel@mvista.com> - * - * Contains low-level support for remote debug using GDB. + * + * Contains low-level support for remote debug using GDB. * * To enable debugger support, two things need to happen. A call to * set_debug_traps() is necessary in order to allow any breakpoints @@ -48,7 +48,7 @@ * k kill (Detach GDB) * * d Toggle debug flag - * D Detach GDB + * D Detach GDB * * Hct Set thread t for operations, OK or ENN * c = 'c' (step, cont), c = 'g' (other @@ -58,7 +58,7 @@ * qfThreadInfo Get list of current threads (first) m<id> * qsThreadInfo " " " " " (subsequent) * qOffsets Get section offsets Text=x;Data=y;Bss=z - * + * * TXX Find if thread XX is alive OK or ENN * ? What was the last sigval ? SNN (signal NN) * O Output to GDB console @@ -74,7 +74,7 @@ * '$' or '#'. If <data> starts with two characters followed by * ':', then the existing stubs interpret this as a sequence number. * - * CSUM1 and CSUM2 are ascii hex representation of an 8-bit + * CSUM1 and CSUM2 are ascii hex representation of an 8-bit * checksum of <data>, the most significant nibble is sent first. * the hex digits 0-9,a-f are used. * @@ -86,8 +86,8 @@ * Responses can be run-length encoded to save space. A '*' means that * the next character is an ASCII encoding giving a repeat count which * stands for that many repititions of the character preceding the '*'. - * The encoding is n+29, yielding a printable character where n >=3 - * (which is where RLE starts to win). Don't use an n > 126. + * The encoding is n+29, yielding a printable character where n >=3 + * (which is where RLE starts to win). Don't use an n > 126. * * So "0* " means the same as "0000". */ @@ -100,12 +100,10 @@ #include <linux/delay.h> #include <linux/linkage.h> #include <linux/init.h> - -#ifdef CONFIG_SH_KGDB_CONSOLE #include <linux/console.h> -#endif - +#include <linux/sysrq.h> #include <asm/system.h> +#include <asm/cacheflush.h> #include <asm/current.h> #include <asm/signal.h> #include <asm/pgtable.h> @@ -153,7 +151,6 @@ char kgdb_in_gdb_mode; char in_nmi; /* Set during NMI to prevent reentry */ int kgdb_nofault; /* Boolean to ignore bus errs (i.e. in GDB) */ int kgdb_enabled = 1; /* Default to enabled, cmdline can disable */ -int kgdb_halt; /* Exposed for user access */ struct task_struct *kgdb_current; @@ -246,14 +243,6 @@ static char out_buffer[OUTBUFMAX]; static void kgdb_to_gdb(const char *s); -#ifdef CONFIG_KGDB_THREAD -static struct task_struct *trapped_thread; -static struct task_struct *current_thread; -typedef unsigned char threadref[8]; -#define BUF_THREAD_ID_SIZE 16 -#endif - - /* Convert ch to hex */ static int hex(const char ch) { @@ -328,7 +317,7 @@ static int hex_to_int(char **ptr, int *int_value) } /* Copy the binary array pointed to by buf into mem. Fix $, #, - and 0x7d escaped with 0x7d. Return a pointer to the character + and 0x7d escaped with 0x7d. Return a pointer to the character after the last byte written. */ static char *ebin_to_mem(const char *buf, char *mem, int count) { @@ -349,66 +338,6 @@ static char *pack_hex_byte(char *pkt, int byte) return pkt; } -#ifdef CONFIG_KGDB_THREAD - -/* Pack a thread ID */ -static char *pack_threadid(char *pkt, threadref * id) -{ - char *limit; - unsigned char *altid; - - altid = (unsigned char *) id; - - limit = pkt + BUF_THREAD_ID_SIZE; - while (pkt < limit) - pkt = pack_hex_byte(pkt, *altid++); - return pkt; -} - -/* Convert an integer into our threadref */ -static void int_to_threadref(threadref * id, const int value) -{ - unsigned char *scan = (unsigned char *) id; - int i = 4; - - while (i--) - *scan++ = 0; - - *scan++ = (value >> 24) & 0xff; - *scan++ = (value >> 16) & 0xff; - *scan++ = (value >> 8) & 0xff; - *scan++ = (value & 0xff); -} - -/* Return a task structure ptr for a particular pid */ -static struct task_struct *get_thread(int pid) -{ - struct task_struct *thread; - - /* Use PID_MAX w/gdb for pid 0 */ - if (pid == PID_MAX) pid = 0; - - /* First check via PID */ - thread = find_task_by_pid(pid); - - if (thread) - return thread; - - /* Start at the start */ - thread = init_tasks[0]; - - /* Walk along the linked list of tasks */ - do { - if (thread->pid == pid) - return thread; - thread = thread->next_task; - } while (thread != init_tasks[0]); - - return NULL; -} - -#endif /* CONFIG_KGDB_THREAD */ - /* Scan for the start char '$', read the packet and check the checksum */ static void get_packet(char *buffer, int buflen) { @@ -452,7 +381,7 @@ static void get_packet(char *buffer, int buflen) /* Ack successful transfer */ put_debug_char('+'); - /* If a sequence char is present, reply + /* If a sequence char is present, reply the sequence ID */ if (buffer[2] == ':') { put_debug_char(buffer[0]); @@ -611,74 +540,6 @@ static void gdb_regs_to_kgdb_regs(const int *gdb_regs, regs->vbr = gdb_regs[VBR]; } -#ifdef CONFIG_KGDB_THREAD -/* Make a local copy of registers from the specified thread */ -asmlinkage void ret_from_fork(void); -static void thread_regs_to_gdb_regs(const struct task_struct *thread, - int *gdb_regs) -{ - int regno; - int *tregs; - - /* Initialize to zero */ - for (regno = 0; regno < MAXREG; regno++) - gdb_regs[regno] = 0; - - /* Just making sure... */ - if (thread == NULL) - return; - - /* A new fork has pt_regs on the stack from a fork() call */ - if (thread->thread.pc == (unsigned long)ret_from_fork) { - - int vbr_val; - struct pt_regs *kregs; - kregs = (struct pt_regs*)thread->thread.sp; - - gdb_regs[R0] = kregs->regs[R0]; - gdb_regs[R1] = kregs->regs[R1]; - gdb_regs[R2] = kregs->regs[R2]; - gdb_regs[R3] = kregs->regs[R3]; - gdb_regs[R4] = kregs->regs[R4]; - gdb_regs[R5] = kregs->regs[R5]; - gdb_regs[R6] = kregs->regs[R6]; - gdb_regs[R7] = kregs->regs[R7]; - gdb_regs[R8] = kregs->regs[R8]; - gdb_regs[R9] = kregs->regs[R9]; - gdb_regs[R10] = kregs->regs[R10]; - gdb_regs[R11] = kregs->regs[R11]; - gdb_regs[R12] = kregs->regs[R12]; - gdb_regs[R13] = kregs->regs[R13]; - gdb_regs[R14] = kregs->regs[R14]; - gdb_regs[R15] = kregs->regs[R15]; - gdb_regs[PC] = kregs->pc; - gdb_regs[PR] = kregs->pr; - gdb_regs[GBR] = kregs->gbr; - gdb_regs[MACH] = kregs->mach; - gdb_regs[MACL] = kregs->macl; - gdb_regs[SR] = kregs->sr; - - asm("stc vbr, %0":"=r"(vbr_val)); - gdb_regs[VBR] = vbr_val; - return; - } - - /* Otherwise, we have only some registers from switch_to() */ - tregs = (int *)thread->thread.sp; - gdb_regs[R15] = (int)tregs; - gdb_regs[R14] = *tregs++; - gdb_regs[R13] = *tregs++; - gdb_regs[R12] = *tregs++; - gdb_regs[R11] = *tregs++; - gdb_regs[R10] = *tregs++; - gdb_regs[R9] = *tregs++; - gdb_regs[R8] = *tregs++; - gdb_regs[PR] = *tregs++; - gdb_regs[GBR] = *tregs++; - gdb_regs[PC] = thread->thread.pc; -} -#endif /* CONFIG_KGDB_THREAD */ - /* Calculate the new address for after a step */ static short *get_step_address(void) { @@ -759,7 +620,7 @@ static short *get_step_address(void) return (short *) addr; } -/* Set up a single-step. Replace the instruction immediately after the +/* Set up a single-step. Replace the instruction immediately after the current instruction (i.e. next in the expected flow of control) with a trap instruction, so that returning will cause only a single instruction to be executed. Note that this model is slightly broken for instructions @@ -797,37 +658,11 @@ static void undo_single_step(void) /* Send a signal message */ static void send_signal_msg(const int signum) { -#ifndef CONFIG_KGDB_THREAD out_buffer[0] = 'S'; out_buffer[1] = highhex(signum); out_buffer[2] = lowhex(signum); out_buffer[3] = 0; put_packet(out_buffer); -#else /* CONFIG_KGDB_THREAD */ - int threadid; - threadref thref; - char *out = out_buffer; - const char *tstring = "thread"; - - *out++ = 'T'; - *out++ = highhex(signum); - *out++ = lowhex(signum); - - while (*tstring) { - *out++ = *tstring++; - } - *out++ = ':'; - - threadid = trapped_thread->pid; - if (threadid == 0) threadid = PID_MAX; - int_to_threadref(&thref, threadid); - pack_threadid(out, &thref); - out += BUF_THREAD_ID_SIZE; - *out++ = ';'; - - *out = 0; - put_packet(out_buffer); -#endif /* CONFIG_KGDB_THREAD */ } /* Reply that all was well */ @@ -962,15 +797,7 @@ static void step_with_sig_msg(void) /* Send register contents */ static void send_regs_msg(void) { -#ifdef CONFIG_KGDB_THREAD - if (!current_thread) - kgdb_regs_to_gdb_regs(&trap_registers, registers); - else - thread_regs_to_gdb_regs(current_thread, registers); -#else kgdb_regs_to_gdb_regs(&trap_registers, registers); -#endif - mem_to_hex((char *) registers, out_buffer, NUMREGBYTES); put_packet(out_buffer); } @@ -978,201 +805,13 @@ static void send_regs_msg(void) /* Set register contents - currently can't set other thread's registers */ static void set_regs_msg(void) { -#ifdef CONFIG_KGDB_THREAD - if (!current_thread) { -#endif - kgdb_regs_to_gdb_regs(&trap_registers, registers); - hex_to_mem(&in_buffer[1], (char *) registers, NUMREGBYTES); - gdb_regs_to_kgdb_regs(registers, &trap_registers); - send_ok_msg(); -#ifdef CONFIG_KGDB_THREAD - } else - send_err_msg(); -#endif -} - - -#ifdef CONFIG_KGDB_THREAD - -/* Set the status for a thread */ -void set_thread_msg(void) -{ - int threadid; - struct task_struct *thread = NULL; - char *ptr; - - switch (in_buffer[1]) { - - /* To select which thread for gG etc messages, i.e. supported */ - case 'g': - - ptr = &in_buffer[2]; - hex_to_int(&ptr, &threadid); - thread = get_thread(threadid); - - /* If we haven't found it */ - if (!thread) { - send_err_msg(); - break; - } - - /* Set current_thread (or not) */ - if (thread == trapped_thread) - current_thread = NULL; - else - current_thread = thread; - send_ok_msg(); - break; - - /* To select which thread for cCsS messages, i.e. unsupported */ - case 'c': - send_ok_msg(); - break; - - default: - send_empty_msg(); - break; - } -} - -/* Is a thread alive? */ -static void thread_status_msg(void) -{ - char *ptr; - int threadid; - struct task_struct *thread = NULL; - - ptr = &in_buffer[1]; - hex_to_int(&ptr, &threadid); - thread = get_thread(threadid); - if (thread) - send_ok_msg(); - else - send_err_msg(); -} -/* Send the current thread ID */ -static void thread_id_msg(void) -{ - int threadid; - threadref thref; - - out_buffer[0] = 'Q'; - out_buffer[1] = 'C'; - - if (current_thread) - threadid = current_thread->pid; - else if (trapped_thread) - threadid = trapped_thread->pid; - else /* Impossible, but just in case! */ - { - send_err_msg(); - return; - } - - /* Translate pid 0 to PID_MAX for gdb */ - if (threadid == 0) threadid = PID_MAX; - - int_to_threadref(&thref, threadid); - pack_threadid(out_buffer + 2, &thref); - out_buffer[2 + BUF_THREAD_ID_SIZE] = '\0'; - put_packet(out_buffer); -} - -/* Send thread info */ -static void thread_info_msg(void) -{ - struct task_struct *thread = NULL; - int threadid; - char *pos; - threadref thref; - - /* Start with 'm' */ - out_buffer[0] = 'm'; - pos = &out_buffer[1]; - - /* For all possible thread IDs - this will overrun if > 44 threads! */ - /* Start at 1 and include PID_MAX (since GDB won't use pid 0...) */ - for (threadid = 1; threadid <= PID_MAX; threadid++) { - - read_lock(&tasklist_lock); - thread = get_thread(threadid); - read_unlock(&tasklist_lock); - - /* If it's a valid thread */ - if (thread) { - int_to_threadref(&thref, threadid); - pack_threadid(pos, &thref); - pos += BUF_THREAD_ID_SIZE; - *pos++ = ','; - } - } - *--pos = 0; /* Lose final comma */ - put_packet(out_buffer); - -} - -/* Return printable info for gdb's 'info threads' command */ -static void thread_extra_info_msg(void) -{ - int threadid; - struct task_struct *thread = NULL; - char buffer[20], *ptr; - int i; - - /* Extract thread ID */ - ptr = &in_buffer[17]; - hex_to_int(&ptr, &threadid); - thread = get_thread(threadid); - - /* If we don't recognise it, say so */ - if (thread == NULL) - strcpy(buffer, "(unknown)"); - else - strcpy(buffer, thread->comm); - - /* Construct packet */ - for (i = 0, ptr = out_buffer; buffer[i]; i++) - ptr = pack_hex_byte(ptr, buffer[i]); - - if (thread->thread.pc == (unsigned long)ret_from_fork) { - strcpy(buffer, "<new fork>"); - for (i = 0; buffer[i]; i++) - ptr = pack_hex_byte(ptr, buffer[i]); - } - - *ptr = '\0'; - put_packet(out_buffer); -} - -/* Handle all qFooBarBaz messages - have to use an if statement as - opposed to a switch because q messages can have > 1 char id. */ -static void query_msg(void) -{ - const char *q_start = &in_buffer[1]; - - /* qC = return current thread ID */ - if (strncmp(q_start, "C", 1) == 0) - thread_id_msg(); - - /* qfThreadInfo = query all threads (first) */ - else if (strncmp(q_start, "fThreadInfo", 11) == 0) - thread_info_msg(); - - /* qsThreadInfo = query all threads (subsequent). We know we have sent - them all after the qfThreadInfo message, so there are no to send */ - else if (strncmp(q_start, "sThreadInfo", 11) == 0) - put_packet("l"); /* el = last */ - - /* qThreadExtraInfo = supply printable information per thread */ - else if (strncmp(q_start, "ThreadExtraInfo", 15) == 0) - thread_extra_info_msg(); - - /* Unsupported - empty message as per spec */ - else - send_empty_msg(); + kgdb_regs_to_gdb_regs(&trap_registers, registers); + hex_to_mem(&in_buffer[1], (char *) registers, NUMREGBYTES); + gdb_regs_to_kgdb_regs(registers, &trap_registers); + send_ok_msg(); } -#endif /* CONFIG_KGDB_THREAD */ +#ifdef CONFIG_SH_KGDB_CONSOLE /* * Bring up the ports.. */ @@ -1185,6 +824,9 @@ static int kgdb_serial_setup(void) return 0; } +#else +#define kgdb_serial_setup() 0 +#endif /* The command loop, read and act on requests */ static void kgdb_command_loop(const int excep_code, const int trapa_value) @@ -1193,7 +835,7 @@ static void kgdb_command_loop(const int excep_code, const int trapa_value) if (excep_code == NMI_VEC) { #ifndef CONFIG_KGDB_NMI - KGDB_PRINTK("Ignoring unexpected NMI?\n"); + printk(KERN_NOTICE "KGDB: Ignoring unexpected NMI?\n"); return; #else /* CONFIG_KGDB_NMI */ if (!kgdb_enabled) { @@ -1207,19 +849,10 @@ static void kgdb_command_loop(const int excep_code, const int trapa_value) if (!kgdb_enabled) return; -#ifdef CONFIG_KGDB_THREAD - /* Until GDB specifies a thread */ - current_thread = NULL; - trapped_thread = current; -#endif - /* Enter GDB mode (e.g. after detach) */ if (!kgdb_in_gdb_mode) { /* Do serial setup, notify user, issue preemptive ack */ - kgdb_serial_setup(); - KGDB_PRINTK("Waiting for GDB (on %s%d at %d baud)\n", - (kgdb_porttype ? kgdb_porttype->name : ""), - kgdb_portnum, kgdb_baud); + printk(KERN_NOTICE "KGDB: Waiting for GDB\n"); kgdb_in_gdb_mode = 1; put_debug_char('+'); } @@ -1233,21 +866,18 @@ static void kgdb_command_loop(const int excep_code, const int trapa_value) will later be replaced by its original one. Do NOT do this for trap 0xff, since that indicates a compiled-in breakpoint which will not be replaced (and we would retake the trap forever) */ - if ((excep_code == TRAP_VEC) && (trapa_value != (0xff << 2))) { + if ((excep_code == TRAP_VEC) && (trapa_value != (0x3c << 2))) trap_registers.pc -= 2; - } /* Undo any stepping we may have done */ undo_single_step(); while (1) { - out_buffer[0] = 0; get_packet(in_buffer, BUFMAX); /* Examine first char of buffer to see what we need to do */ switch (in_buffer[0]) { - case '?': /* Send which signal we've received */ send_signal_msg(sigval); break; @@ -1291,21 +921,6 @@ static void kgdb_command_loop(const int excep_code, const int trapa_value) step_msg(); return; -#ifdef CONFIG_KGDB_THREAD - - case 'H': /* Task related */ - set_thread_msg(); - break; - - case 'T': /* Query thread status */ - thread_status_msg(); - break; - - case 'q': /* Handle query - currently thread-related */ - query_msg(); - break; -#endif - case 'k': /* 'Kill the program' with a kernel ? */ break; @@ -1323,11 +938,8 @@ static void kgdb_command_loop(const int excep_code, const int trapa_value) } /* There has been an exception, most likely a breakpoint. */ -asmlinkage void kgdb_handle_exception(unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7, - struct pt_regs __regs) +static void handle_exception(struct pt_regs *regs) { - struct pt_regs *regs = RELOC_HIDE(&__regs, 0); int excep_code, vbr_val; int count; int trapa_value = ctrl_inl(TRA); @@ -1355,7 +967,7 @@ asmlinkage void kgdb_handle_exception(unsigned long r4, unsigned long r5, kgdb_trapa_val = trapa_value; /* Act on the exception */ - kgdb_command_loop(excep_code >> 5, trapa_value); + kgdb_command_loop(excep_code, trapa_value); kgdb_current = NULL; @@ -1373,14 +985,12 @@ asmlinkage void kgdb_handle_exception(unsigned long r4, unsigned long r5, asm("ldc %0, vbr": :"r"(vbr_val)); } -/* Trigger a breakpoint by function */ -void breakpoint(void) +asmlinkage void kgdb_handle_exception(unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7, + struct pt_regs __regs) { - if (!kgdb_enabled) { - kgdb_enabled = 1; - kgdb_init(); - } - BREAKPOINT(); + struct pt_regs *regs = RELOC_HIDE(&__regs, 0); + handle_exception(regs); } /* Initialise the KGDB data structures and serial configuration */ @@ -1395,24 +1005,16 @@ int kgdb_init(void) kgdb_in_gdb_mode = 0; if (kgdb_serial_setup() != 0) { - KGDB_PRINTK("serial setup error\n"); + printk(KERN_NOTICE "KGDB: serial setup error\n"); return -1; } /* Init ptr to exception handler */ - kgdb_debug_hook = kgdb_handle_exception; + kgdb_debug_hook = handle_exception; kgdb_bus_err_hook = kgdb_handle_bus_error; /* Enter kgdb now if requested, or just report init done */ - if (kgdb_halt) { - kgdb_in_gdb_mode = 1; - put_debug_char('+'); - breakpoint(); - } - else - { - KGDB_PRINTK("stub is initialized.\n"); - } + printk(KERN_NOTICE "KGDB: stub is initialized.\n"); return 0; } @@ -1437,7 +1039,7 @@ static void kgdb_msg_write(const char *s, unsigned count) /* Calculate how many this time */ wcount = (count > MAXOUT) ? MAXOUT : count; - + /* Pack in hex chars */ for (i = 0; i < wcount; i++) bufptr = pack_hex_byte(bufptr, s[i]); @@ -1467,3 +1069,25 @@ void kgdb_console_write(struct console *co, const char *s, unsigned count) kgdb_msg_write(s, count); } #endif + +#ifdef CONFIG_KGDB_SYSRQ +static void sysrq_handle_gdb(int key, struct tty_struct *tty) +{ + printk("Entering GDB stub\n"); + breakpoint(); +} + +static struct sysrq_key_op sysrq_gdb_op = { + .handler = sysrq_handle_gdb, + .help_msg = "Gdb", + .action_msg = "GDB", +}; + +static int gdb_register_sysrq(void) +{ + printk("Registering GDB sysrq handler\n"); + register_sysrq_key('g', &sysrq_gdb_op); + return 0; +} +module_init(gdb_register_sysrq); +#endif diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c index 08587cd..790ed69 100644 --- a/arch/sh/kernel/machine_kexec.c +++ b/arch/sh/kernel/machine_kexec.c @@ -59,13 +59,13 @@ static void kexec_info(struct kimage *image) printk(" segment[%d]: 0x%08x - 0x%08x (0x%08x)\n", i, (unsigned int)image->segment[i].mem, - (unsigned int)image->segment[i].mem + image->segment[i].memsz, + (unsigned int)image->segment[i].mem + + image->segment[i].memsz, (unsigned int)image->segment[i].memsz); - } + } printk(" start : 0x%08x\n\n", (unsigned int)image->start); } - /* * Do not allocate memory (or fail in any way) in machine_kexec(). * We are past the point of no return, committed to rebooting now. @@ -101,6 +101,27 @@ NORET_TYPE void machine_kexec(struct kimage *image) /* now call it */ rnk = (relocate_new_kernel_t) reboot_code_buffer; - (*rnk)(page_list, reboot_code_buffer, image->start, vbr_reg); + (*rnk)(page_list, reboot_code_buffer, image->start, vbr_reg); } +/* crashkernel=size@addr specifies the location to reserve for + * a crash kernel. By reserving this memory we guarantee + * that linux never sets it up as a DMA target. + * Useful for holding code to do something appropriate + * after a kernel panic. + */ +static int __init parse_crashkernel(char *arg) +{ + unsigned long size, base; + size = memparse(arg, &arg); + if (*arg == '@') { + base = memparse(arg+1, &arg); + /* FIXME: Do I want a sanity check + * to validate the memory range? + */ + crashk_res.start = base; + crashk_res.end = base + size - 1; + } + return 0; +} +early_param("crashkernel", parse_crashkernel); diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c index e760736..329b3f3 100644 --- a/arch/sh/kernel/process.c +++ b/arch/sh/kernel/process.c @@ -7,7 +7,7 @@ * * SuperH version: Copyright (C) 1999, 2000 Niibe Yutaka & Kaz Kojima * Copyright (C) 2006 Lineo Solutions Inc. support SH4A UBC - * Copyright (C) 2002 - 2006 Paul Mundt + * Copyright (C) 2002 - 2007 Paul Mundt */ #include <linux/module.h> #include <linux/mm.h> @@ -15,6 +15,7 @@ #include <linux/pm.h> #include <linux/kallsyms.h> #include <linux/kexec.h> +#include <asm/kdebug.h> #include <asm/uaccess.h> #include <asm/mmu_context.h> #include <asm/ubc.h> @@ -299,7 +300,8 @@ static void ubc_set_tracing(int asid, unsigned long pc) ctrl_outl(0, UBC_BAMRA); if (current_cpu_data.type == CPU_SH7729 || - current_cpu_data.type == CPU_SH7710) { + current_cpu_data.type == CPU_SH7710 || + current_cpu_data.type == CPU_SH7712) { ctrl_outw(BBR_INST | BBR_READ | BBR_CPU, UBC_BBRA); ctrl_outl(BRCR_PCBA | BRCR_PCTE, UBC_BRCR); } else { @@ -495,6 +497,10 @@ asmlinkage void debug_trap_handler(unsigned long r4, unsigned long r5, /* Rewind */ regs->pc -= 2; + if (notify_die(DIE_TRAP, regs, regs->tra & 0xff, + SIGTRAP) == NOTIFY_STOP) + return; + force_sig(SIGTRAP, current); } @@ -510,6 +516,10 @@ asmlinkage void bug_trap_handler(unsigned long r4, unsigned long r5, /* Rewind */ regs->pc -= 2; + if (notify_die(DIE_TRAP, regs, TRAPA_BUG_OPCODE & 0xff, + SIGTRAP) == NOTIFY_STOP) + return; + #ifdef CONFIG_BUG if (__kernel_text_address(instruction_pointer(regs))) { u16 insn = *(u16 *)instruction_pointer(regs); diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index 98802ab..477d2a8 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -4,7 +4,7 @@ * This file handles the architecture-dependent parts of initialization * * Copyright (C) 1999 Niibe Yutaka - * Copyright (C) 2002 - 2006 Paul Mundt + * Copyright (C) 2002 - 2007 Paul Mundt */ #include <linux/screen_info.h> #include <linux/ioport.h> @@ -15,21 +15,22 @@ #include <linux/seq_file.h> #include <linux/root_dev.h> #include <linux/utsname.h> +#include <linux/nodemask.h> #include <linux/cpu.h> #include <linux/pfn.h> #include <linux/fs.h> +#include <linux/mm.h> +#include <linux/kexec.h> #include <asm/uaccess.h> #include <asm/io.h> #include <asm/sections.h> #include <asm/irq.h> #include <asm/setup.h> #include <asm/clock.h> +#include <asm/mmu_context.h> -#ifdef CONFIG_SH_KGDB -#include <asm/kgdb.h> -static int kgdb_parse_options(char *options); -#endif extern void * __rd_start, * __rd_end; + /* * Machine setup.. */ @@ -205,53 +206,33 @@ static int __init sh_mv_setup(char **cmdline_p) return 0; } -void __init setup_arch(char **cmdline_p) +/* + * Register fully available low RAM pages with the bootmem allocator. + */ +static void __init register_bootmem_low_pages(void) { - unsigned long bootmap_size; - unsigned long start_pfn, max_pfn, max_low_pfn; - -#ifdef CONFIG_CMDLINE_BOOL - strcpy(COMMAND_LINE, CONFIG_CMDLINE); -#endif - - ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV); - -#ifdef CONFIG_BLK_DEV_RAM - rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK; - rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0); - rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0); -#endif - - if (!MOUNT_ROOT_RDONLY) - root_mountflags &= ~MS_RDONLY; - init_mm.start_code = (unsigned long) _text; - init_mm.end_code = (unsigned long) _etext; - init_mm.end_data = (unsigned long) _edata; - init_mm.brk = (unsigned long) _end; - - code_resource.start = (unsigned long)virt_to_phys(_text); - code_resource.end = (unsigned long)virt_to_phys(_etext)-1; - data_resource.start = (unsigned long)virt_to_phys(_etext); - data_resource.end = (unsigned long)virt_to_phys(_edata)-1; - - sh_mv_setup(cmdline_p); - + unsigned long curr_pfn, last_pfn, pages; /* - * Find the highest page frame number we have available + * We are rounding up the start address of usable memory: */ - max_pfn = PFN_DOWN(__pa(memory_end)); + curr_pfn = PFN_UP(__MEMORY_START); /* - * Determine low and high memory ranges: + * ... and at the end of the usable range downwards: */ - max_low_pfn = max_pfn; + last_pfn = PFN_DOWN(__pa(memory_end)); - /* - * Partially used pages are not usable - thus - * we are rounding upwards: - */ - start_pfn = PFN_UP(__pa(_end)); + if (last_pfn > max_low_pfn) + last_pfn = max_low_pfn; + + pages = last_pfn - curr_pfn; + free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(pages)); +} + +void __init setup_bootmem_allocator(unsigned long start_pfn) +{ + unsigned long bootmap_size; /* * Find a proper area for the bootmem bitmap. After this @@ -259,31 +240,11 @@ void __init setup_arch(char **cmdline_p) * is intact) must be done via bootmem_alloc(). */ bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn, - __MEMORY_START>>PAGE_SHIFT, - max_low_pfn); - /* - * Register fully available low RAM pages with the bootmem allocator. - */ - { - unsigned long curr_pfn, last_pfn, pages; - - /* - * We are rounding up the start address of usable memory: - */ - curr_pfn = PFN_UP(__MEMORY_START); - /* - * ... and at the end of the usable range downwards: - */ - last_pfn = PFN_DOWN(__pa(memory_end)); + min_low_pfn, max_low_pfn); - if (last_pfn > max_low_pfn) - last_pfn = max_low_pfn; - - pages = last_pfn - curr_pfn; - free_bootmem_node(NODE_DATA(0), PFN_PHYS(curr_pfn), - PFN_PHYS(pages)); - } + register_bootmem_low_pages(); + node_set_online(0); /* * Reserve the kernel text and @@ -292,14 +253,14 @@ void __init setup_arch(char **cmdline_p) * case of us accidentally initializing the bootmem allocator with * an invalid RAM area. */ - reserve_bootmem_node(NODE_DATA(0), __MEMORY_START+PAGE_SIZE, + reserve_bootmem(__MEMORY_START+PAGE_SIZE, (PFN_PHYS(start_pfn)+bootmap_size+PAGE_SIZE-1)-__MEMORY_START); /* * reserve physical page 0 - it's a special BIOS page on many boxes, * enabling clean reboots, SMP operation, laptop functions. */ - reserve_bootmem_node(NODE_DATA(0), __MEMORY_START, PAGE_SIZE); + reserve_bootmem(__MEMORY_START, PAGE_SIZE); #ifdef CONFIG_BLK_DEV_INITRD ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0); @@ -313,8 +274,8 @@ void __init setup_arch(char **cmdline_p) if (LOADER_TYPE && INITRD_START) { if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) { - reserve_bootmem_node(NODE_DATA(0), INITRD_START + - __MEMORY_START, INITRD_SIZE); + reserve_bootmem(INITRD_START + __MEMORY_START, + INITRD_SIZE); initrd_start = INITRD_START + PAGE_OFFSET + __MEMORY_START; initrd_end = initrd_start + INITRD_SIZE; @@ -327,6 +288,76 @@ void __init setup_arch(char **cmdline_p) } } #endif +#ifdef CONFIG_KEXEC + if (crashk_res.start != crashk_res.end) + reserve_bootmem(crashk_res.start, + crashk_res.end - crashk_res.start + 1); +#endif +} + +#ifndef CONFIG_NEED_MULTIPLE_NODES +static void __init setup_memory(void) +{ + unsigned long start_pfn; + + /* + * Partially used pages are not usable - thus + * we are rounding upwards: + */ + start_pfn = PFN_UP(__pa(_end)); + setup_bootmem_allocator(start_pfn); +} +#else +extern void __init setup_memory(void); +#endif + +void __init setup_arch(char **cmdline_p) +{ + enable_mmu(); + +#ifdef CONFIG_CMDLINE_BOOL + strcpy(COMMAND_LINE, CONFIG_CMDLINE); +#endif + + ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV); + +#ifdef CONFIG_BLK_DEV_RAM + rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK; + rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0); + rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0); +#endif + + if (!MOUNT_ROOT_RDONLY) + root_mountflags &= ~MS_RDONLY; + init_mm.start_code = (unsigned long) _text; + init_mm.end_code = (unsigned long) _etext; + init_mm.end_data = (unsigned long) _edata; + init_mm.brk = (unsigned long) _end; + + code_resource.start = virt_to_phys(_text); + code_resource.end = virt_to_phys(_etext)-1; + data_resource.start = virt_to_phys(_etext); + data_resource.end = virt_to_phys(_edata)-1; + + parse_early_param(); + + sh_mv_setup(cmdline_p); + + /* + * Find the highest page frame number we have available + */ + max_pfn = PFN_DOWN(__pa(memory_end)); + + /* + * Determine low and high memory ranges: + */ + max_low_pfn = max_pfn; + min_low_pfn = __MEMORY_START >> PAGE_SHIFT; + + nodes_clear(node_online_map); + setup_memory(); + paging_init(); + sparse_init(); #ifdef CONFIG_DUMMY_CONSOLE conswitchp = &dummy_con; @@ -335,8 +366,6 @@ void __init setup_arch(char **cmdline_p) /* Perform the machine specific initialisation */ if (likely(sh_mv.mv_setup)) sh_mv.mv_setup(cmdline_p); - - paging_init(); } struct sh_machine_vector* __init get_mv_byname(const char* name) @@ -380,6 +409,7 @@ static const char *cpu_name[] = { [CPU_SH7705] = "SH7705", [CPU_SH7706] = "SH7706", [CPU_SH7707] = "SH7707", [CPU_SH7708] = "SH7708", [CPU_SH7709] = "SH7709", [CPU_SH7710] = "SH7710", + [CPU_SH7712] = "SH7712", [CPU_SH7729] = "SH7729", [CPU_SH7750] = "SH7750", [CPU_SH7750S] = "SH7750S", [CPU_SH7750R] = "SH7750R", [CPU_SH7751] = "SH7751", [CPU_SH7751R] = "SH7751R", @@ -477,7 +507,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) c->loops_per_jiffy/(500000/HZ), (c->loops_per_jiffy/(5000/HZ)) % 100); - return show_clocks(m); + return 0; } static void *c_start(struct seq_file *m, loff_t *pos) @@ -499,92 +529,3 @@ struct seq_operations cpuinfo_op = { .show = show_cpuinfo, }; #endif /* CONFIG_PROC_FS */ - -#ifdef CONFIG_SH_KGDB -/* - * Parse command-line kgdb options. By default KGDB is enabled, - * entered on error (or other action) using default serial info. - * The command-line option can include a serial port specification - * and an action to override default or configured behavior. - */ -struct kgdb_sermap kgdb_sci_sermap = -{ "ttySC", 5, kgdb_sci_setup, NULL }; - -struct kgdb_sermap *kgdb_serlist = &kgdb_sci_sermap; -struct kgdb_sermap *kgdb_porttype = &kgdb_sci_sermap; - -void kgdb_register_sermap(struct kgdb_sermap *map) -{ - struct kgdb_sermap *last; - - for (last = kgdb_serlist; last->next; last = last->next) - ; - last->next = map; - if (!map->namelen) { - map->namelen = strlen(map->name); - } -} - -static int __init kgdb_parse_options(char *options) -{ - char c; - int baud; - - /* Check for port spec (or use default) */ - - /* Determine port type and instance */ - if (!memcmp(options, "tty", 3)) { - struct kgdb_sermap *map = kgdb_serlist; - - while (map && memcmp(options, map->name, map->namelen)) - map = map->next; - - if (!map) { - KGDB_PRINTK("unknown port spec in %s\n", options); - return -1; - } - - kgdb_porttype = map; - kgdb_serial_setup = map->setup_fn; - kgdb_portnum = options[map->namelen] - '0'; - options += map->namelen + 1; - - options = (*options == ',') ? options+1 : options; - - /* Read optional parameters (baud/parity/bits) */ - baud = simple_strtoul(options, &options, 10); - if (baud != 0) { - kgdb_baud = baud; - - c = toupper(*options); - if (c == 'E' || c == 'O' || c == 'N') { - kgdb_parity = c; - options++; - } - - c = *options; - if (c == '7' || c == '8') { - kgdb_bits = c; - options++; - } - options = (*options == ',') ? options+1 : options; - } - } - - /* Check for action specification */ - if (!memcmp(options, "halt", 4)) { - kgdb_halt = 1; - options += 4; - } else if (!memcmp(options, "disabled", 8)) { - kgdb_enabled = 0; - options += 8; - } - - if (*options) { - KGDB_PRINTK("ignored unknown options: %s\n", options); - return 0; - } - return 1; -} -__setup("kgdb=", kgdb_parse_options); -#endif /* CONFIG_SH_KGDB */ diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c index 6e0d10f..17f0b50 100644 --- a/arch/sh/kernel/sh_ksyms.c +++ b/arch/sh/kernel/sh_ksyms.c @@ -65,7 +65,6 @@ EXPORT_SYMBOL(__div64_32); /* These symbols are generated by the compiler itself */ DECLARE_EXPORT(__udivsi3); -DECLARE_EXPORT(__udivdi3); DECLARE_EXPORT(__sdivsi3); DECLARE_EXPORT(__ashrdi3); DECLARE_EXPORT(__ashldi3); diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c index e060e71..ad1ede5 100644 --- a/arch/sh/kernel/timers/timer-tmu.c +++ b/arch/sh/kernel/timers/timer-tmu.c @@ -148,7 +148,9 @@ static int tmu_timer_init(void) /* Start TMU0 */ tmu_timer_stop(); -#if !defined(CONFIG_CPU_SUBTYPE_SH7300) && !defined(CONFIG_CPU_SUBTYPE_SH7760) +#if !defined(CONFIG_CPU_SUBTYPE_SH7300) && \ + !defined(CONFIG_CPU_SUBTYPE_SH7760) && \ + !defined(CONFIG_CPU_SUBTYPE_SH7785) ctrl_outb(TMU_TOCR_INIT, TMU_TOCR); #endif diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c index e9f168f..7b40f0f 100644 --- a/arch/sh/kernel/traps.c +++ b/arch/sh/kernel/traps.c @@ -5,7 +5,7 @@ * SuperH version: Copyright (C) 1999 Niibe Yutaka * Copyright (C) 2000 Philipp Rumpf * Copyright (C) 2000 David Howells - * Copyright (C) 2002 - 2006 Paul Mundt + * Copyright (C) 2002 - 2007 Paul Mundt * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -18,10 +18,12 @@ #include <linux/module.h> #include <linux/kallsyms.h> #include <linux/io.h> +#include <linux/bug.h> #include <linux/debug_locks.h> #include <linux/limits.h> #include <asm/system.h> #include <asm/uaccess.h> +#include <asm/kdebug.h> #ifdef CONFIG_SH_KGDB #include <asm/kgdb.h> @@ -74,7 +76,21 @@ static void dump_mem(const char *str, unsigned long bottom, unsigned long top) } } -DEFINE_SPINLOCK(die_lock); +ATOMIC_NOTIFIER_HEAD(shdie_chain); + +int register_die_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_register(&shdie_chain, nb); +} +EXPORT_SYMBOL(register_die_notifier); + +int unregister_die_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(&shdie_chain, nb); +} +EXPORT_SYMBOL(unregister_die_notifier); + +static DEFINE_SPINLOCK(die_lock); void die(const char * str, struct pt_regs * regs, long err) { @@ -130,40 +146,6 @@ static int die_if_no_fixup(const char * str, struct pt_regs * regs, long err) return -EFAULT; } -#ifdef CONFIG_BUG -#ifdef CONFIG_DEBUG_BUGVERBOSE -static inline void do_bug_verbose(struct pt_regs *regs) -{ - struct bug_frame f; - long len; - - if (__copy_from_user(&f, (const void __user *)regs->pc, - sizeof(struct bug_frame))) - return; - - len = __strnlen_user(f.file, PATH_MAX) - 1; - if (unlikely(len < 0 || len >= PATH_MAX)) - f.file = "<bad filename>"; - len = __strnlen_user(f.func, PATH_MAX) - 1; - if (unlikely(len < 0 || len >= PATH_MAX)) - f.func = "<bad function>"; - - printk(KERN_ALERT "kernel BUG in %s() at %s:%d!\n", - f.func, f.file, f.line); -} -#else -static inline void do_bug_verbose(struct pt_regs *regs) -{ -} -#endif /* CONFIG_DEBUG_BUGVERBOSE */ - -void handle_BUG(struct pt_regs *regs) -{ - do_bug_verbose(regs); - die("Kernel BUG", regs, TRAPA_BUG_OPCODE & 0xff); -} -#endif /* CONFIG_BUG */ - /* * handle an instruction that does an unaligned memory access by emulating the * desired behaviour @@ -888,6 +870,25 @@ void __init trap_init(void) per_cpu_trap_init(); } +#ifdef CONFIG_BUG +void handle_BUG(struct pt_regs *regs) +{ + enum bug_trap_type tt; + tt = report_bug(regs->pc); + if (tt == BUG_TRAP_TYPE_WARN) { + regs->pc += 2; + return; + } + + die("Kernel BUG", regs, TRAPA_BUG_OPCODE & 0xff); +} + +int is_valid_bugaddr(unsigned long addr) +{ + return addr >= PAGE_OFFSET; +} +#endif + void show_trace(struct task_struct *tsk, unsigned long *sp, struct pt_regs *regs) { diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S index 78a6c09..d83143c 100644 --- a/arch/sh/kernel/vmlinux.lds.S +++ b/arch/sh/kernel/vmlinux.lds.S @@ -34,9 +34,11 @@ SECTIONS __ex_table : { *(__ex_table) } __stop___ex_table = .; + _etext = .; /* End of text section */ + RODATA - _etext = .; /* End of text section */ + BUG_TABLE .data : { /* Data */ *(.data) @@ -53,8 +55,12 @@ SECTIONS . = ALIGN(PAGE_SIZE); .data.page_aligned : { *(.data.page_aligned) } + __nosave_begin = .; + .data_nosave : { *(.data.nosave) } + . = ALIGN(PAGE_SIZE); + __nosave_end = .; - . = ALIGN(L1_CACHE_BYTES); + . = ALIGN(PAGE_SIZE); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; @@ -110,43 +116,10 @@ SECTIONS * it's a module. */ /DISCARD/ : { - *(.exit.text) - *(.exit.data) *(.exitcall.exit) } - /* Stabs debugging sections. */ - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - .stab.excl 0 : { *(.stab.excl) } - .stab.exclstr 0 : { *(.stab.exclstr) } - .stab.index 0 : { *(.stab.index) } - .stab.indexstr 0 : { *(.stab.indexstr) } - .comment 0 : { *(.comment) } - /* DWARF debug sections. - Symbols in the DWARF debugging section are relative to the beginning - of the section so we begin .debug at 0. */ - /* DWARF 1 */ - .debug 0 : { *(.debug) } - .line 0 : { *(.line) } - /* GNU DWARF 1 extensions */ - .debug_srcinfo 0 : { *(.debug_srcinfo) } - .debug_sfnames 0 : { *(.debug_sfnames) } - /* DWARF 1.1 and DWARF 2 */ - .debug_aranges 0 : { *(.debug_aranges) } - .debug_pubnames 0 : { *(.debug_pubnames) } - /* DWARF 2 */ - .debug_info 0 : { *(.debug_info) } - .debug_abbrev 0 : { *(.debug_abbrev) } - .debug_line 0 : { *(.debug_line) } - .debug_frame 0 : { *(.debug_frame) } - .debug_str 0 : { *(.debug_str) } - .debug_loc 0 : { *(.debug_loc) } - .debug_macinfo 0 : { *(.debug_macinfo) } - /* SGI/MIPS DWARF 2 extensions */ - .debug_weaknames 0 : { *(.debug_weaknames) } - .debug_funcnames 0 : { *(.debug_funcnames) } - .debug_typenames 0 : { *(.debug_typenames) } - .debug_varnames 0 : { *(.debug_varnames) } - /* These must appear regardless of . */ + STABS_DEBUG + + DWARF_DEBUG } diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile index 0b9cca5..e23dd1a 100644 --- a/arch/sh/lib/Makefile +++ b/arch/sh/lib/Makefile @@ -3,11 +3,9 @@ # lib-y = delay.o memset.o memmove.o memchr.o \ - checksum.o strlen.o div64.o udivdi3.o \ - div64-generic.o + checksum.o strlen.o div64.o div64-generic.o memcpy-y := memcpy.o memcpy-$(CONFIG_CPU_SH4) := memcpy-sh4.o lib-y += $(memcpy-y) - diff --git a/arch/sh/lib/udivdi3.c b/arch/sh/lib/udivdi3.c deleted file mode 100644 index 68f038b..0000000 --- a/arch/sh/lib/udivdi3.c +++ /dev/null @@ -1,16 +0,0 @@ -/* - * Simple __udivdi3 function which doesn't use FPU. - */ - -#include <linux/types.h> - -extern u64 __xdiv64_32(u64 n, u32 d); -extern void panic(const char * fmt, ...); - -u64 __udivdi3(u64 n, u64 d) -{ - if (d & ~0xffffffff) - panic("Need true 64-bit/64-bit division"); - return __xdiv64_32(n, (u32)d); -} - diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig index 6b0d28a..12f3d39 100644 --- a/arch/sh/mm/Kconfig +++ b/arch/sh/mm/Kconfig @@ -67,6 +67,7 @@ config CPU_SUBTYPE_SH7300 config CPU_SUBTYPE_SH7705 bool "Support SH7705 processor" select CPU_SH3 + select CPU_HAS_IPR_IRQ select CPU_HAS_PINT_IRQ config CPU_SUBTYPE_SH7706 @@ -101,9 +102,17 @@ config CPU_SUBTYPE_SH7709 config CPU_SUBTYPE_SH7710 bool "Support SH7710 processor" select CPU_SH3 + select CPU_HAS_IPR_IRQ help Select SH7710 if you have a SH3-DSP SH7710 CPU. +config CPU_SUBTYPE_SH7712 + bool "Support SH7712 processor" + select CPU_SH3 + select CPU_HAS_IPR_IRQ + help + Select SH7712 if you have a SH3-DSP SH7712 CPU. + comment "SH-4 Processor Support" config CPU_SUBTYPE_SH7750 @@ -283,6 +292,17 @@ config VSYSCALL For systems with an MMU that can afford to give up a page, (the default value) say Y. +config NODES_SHIFT + int + default "1" + depends on NEED_MULTIPLE_NODES + +config ARCH_FLATMEM_ENABLE + def_bool y + +config ARCH_POPULATES_NODE_MAP + def_bool y + choice prompt "Kernel page size" default PAGE_SIZE_4KB diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c index fa5d7f0..0ecc117 100644 --- a/arch/sh/mm/fault.c +++ b/arch/sh/mm/fault.c @@ -2,7 +2,7 @@ * Page fault handler for SH with an MMU. * * Copyright (C) 1999 Niibe Yutaka - * Copyright (C) 2003 Paul Mundt + * Copyright (C) 2003 - 2007 Paul Mundt * * Based on linux/arch/i386/mm/fault.c: * Copyright (C) 1995 Linus Torvalds @@ -15,12 +15,42 @@ #include <linux/mm.h> #include <linux/hardirq.h> #include <linux/kprobes.h> +#include <asm/kdebug.h> #include <asm/system.h> #include <asm/mmu_context.h> #include <asm/tlbflush.h> #include <asm/kgdb.h> -extern void die(const char *,struct pt_regs *,long); +#ifdef CONFIG_KPROBES +ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain); + +/* Hook to register for page fault notifications */ +int register_page_fault_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_register(¬ify_page_fault_chain, nb); +} + +int unregister_page_fault_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(¬ify_page_fault_chain, nb); +} + +static inline int notify_page_fault(enum die_val val, struct pt_regs *regs, + int trap, int sig) +{ + struct die_args args = { + .regs = regs, + .trapnr = trap, + }; + return atomic_notifier_call_chain(¬ify_page_fault_chain, val, &args); +} +#else +static inline int notify_page_fault(enum die_val val, struct pt_regs *regs, + int trap, int sig) +{ + return NOTIFY_DONE; +} +#endif /* * This routine handles page faults. It determines the address, @@ -39,6 +69,11 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, siginfo_t info; trace_hardirqs_on(); + + if (notify_page_fault(DIE_PAGE_FAULT, regs, + writeaccess, SIGSEGV) == NOTIFY_STOP) + return; + local_irq_enable(); #ifdef CONFIG_SH_KGDB diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index ae957a9..4d03098 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -1,37 +1,20 @@ -/* $Id: init.c,v 1.19 2004/02/21 04:42:16 kkojima Exp $ - * - * linux/arch/sh/mm/init.c +/* + * linux/arch/sh/mm/init.c * * Copyright (C) 1999 Niibe Yutaka - * Copyright (C) 2002, 2004 Paul Mundt + * Copyright (C) 2002 - 2007 Paul Mundt * * Based on linux/arch/i386/mm/init.c: * Copyright (C) 1995 Linus Torvalds */ - -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/ptrace.h> -#include <linux/mman.h> #include <linux/mm.h> #include <linux/swap.h> -#include <linux/smp.h> #include <linux/init.h> -#include <linux/highmem.h> #include <linux/bootmem.h> -#include <linux/pagemap.h> #include <linux/proc_fs.h> -#include <asm/processor.h> -#include <asm/system.h> -#include <asm/uaccess.h> -#include <asm/pgtable.h> -#include <asm/pgalloc.h> +#include <linux/percpu.h> +#include <linux/io.h> #include <asm/mmu_context.h> -#include <asm/io.h> #include <asm/tlb.h> #include <asm/cacheflush.h> #include <asm/cache.h> @@ -39,37 +22,51 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); pgd_t swapper_pg_dir[PTRS_PER_PGD]; -#ifdef CONFIG_MMU -/* It'd be good if these lines were in the standard header file. */ -#define START_PFN (NODE_DATA(0)->bdata->node_boot_start >> PAGE_SHIFT) -#define MAX_LOW_PFN (NODE_DATA(0)->bdata->node_low_pfn) -#endif - void (*copy_page)(void *from, void *to); void (*clear_page)(void *to); void show_mem(void) { - int i, total = 0, reserved = 0; - int shared = 0, cached = 0; + int total = 0, reserved = 0, free = 0; + int shared = 0, cached = 0, slab = 0; + pg_data_t *pgdat; printk("Mem-info:\n"); show_free_areas(); - printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10)); - i = max_mapnr; - while (i-- > 0) { - total++; - if (PageReserved(mem_map+i)) - reserved++; - else if (PageSwapCache(mem_map+i)) - cached++; - else if (page_count(mem_map+i)) - shared += page_count(mem_map+i) - 1; + + for_each_online_pgdat(pgdat) { + struct page *page, *end; + unsigned long flags; + + pgdat_resize_lock(pgdat, &flags); + page = pgdat->node_mem_map; + end = page + pgdat->node_spanned_pages; + + do { + total++; + if (PageReserved(page)) + reserved++; + else if (PageSwapCache(page)) + cached++; + else if (PageSlab(page)) + slab++; + else if (!page_count(page)) + free++; + else + shared += page_count(page) - 1; + page++; + } while (page < end); + + pgdat_resize_unlock(pgdat, &flags); } - printk("%d pages of RAM\n",total); - printk("%d reserved pages\n",reserved); - printk("%d pages shared\n",shared); - printk("%d pages swap cached\n",cached); + + printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10)); + printk("%d pages of RAM\n", total); + printk("%d free pages\n", free); + printk("%d reserved pages\n", reserved); + printk("%d slab pages\n", slab); + printk("%d pages shared\n", shared); + printk("%d pages swap cached\n", cached); } #ifdef CONFIG_MMU @@ -147,52 +144,38 @@ extern char __init_begin, __init_end; */ void __init paging_init(void) { - unsigned long zones_size[MAX_NR_ZONES] = { 0, }; + int nid; - /* - * Setup some defaults for the zone sizes.. these should be safe - * regardless of distcontiguous memory or MMU settings. - */ - zones_size[ZONE_NORMAL] = __MEMORY_SIZE >> PAGE_SHIFT; -#ifdef CONFIG_HIGHMEM - zones_size[ZONE_HIGHMEM] = 0 >> PAGE_SHIFT; -#endif - -#ifdef CONFIG_MMU - /* - * If we have an MMU, and want to be using it .. we need to adjust - * the zone sizes accordingly, in addition to turning it on. - */ - { - /* We don't need to map the kernel through the TLB, as - * it is permanatly mapped using P1. So clear the - * entire pgd. */ - memset(swapper_pg_dir, 0, sizeof(swapper_pg_dir)); - - /* Turn on the MMU */ - enable_mmu(); - zones_size[ZONE_NORMAL] = MAX_LOW_PFN - START_PFN; - } + /* We don't need to map the kernel through the TLB, as + * it is permanatly mapped using P1. So clear the + * entire pgd. */ + memset(swapper_pg_dir, 0, sizeof(swapper_pg_dir)); /* Set an initial value for the MMU.TTB so we don't have to * check for a null value. */ set_TTB(swapper_pg_dir); -#elif defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4) - /* - * If we don't have CONFIG_MMU set and the processor in question - * still has an MMU, care needs to be taken to make sure it doesn't - * stay on.. Since the boot loader could have potentially already - * turned it on, and we clearly don't want it, we simply turn it off. - * - * We don't need to do anything special for the zone sizes, since the - * default values that were already configured up above should be - * satisfactory. - */ - disable_mmu(); -#endif - NODE_DATA(0)->node_mem_map = NULL; - free_area_init_node(0, NODE_DATA(0), zones_size, __MEMORY_START >> PAGE_SHIFT, 0); + for_each_online_node(nid) { + pg_data_t *pgdat = NODE_DATA(nid); + unsigned long max_zone_pfns[MAX_NR_ZONES]; + unsigned long low, start_pfn; + + memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); + + start_pfn = pgdat->bdata->node_boot_start >> PAGE_SHIFT; + low = pgdat->bdata->node_low_pfn; + + max_zone_pfns[ZONE_NORMAL] = low; + add_active_range(nid, start_pfn, low); + + printk("Node %u: start_pfn = 0x%lx, low = 0x%lx\n", + nid, start_pfn, low); + + free_area_init_nodes(max_zone_pfns); + + printk("Node %u: mem_map starts at %p\n", + pgdat->node_id, pgdat->node_mem_map); + } } static struct kcore_list kcore_mem, kcore_vmalloc; @@ -200,18 +183,33 @@ static struct kcore_list kcore_mem, kcore_vmalloc; void __init mem_init(void) { int codesize, reservedpages, datasize, initsize; - int tmp; - extern unsigned long memory_start; + int nid; -#ifdef CONFIG_MMU - high_memory = (void *)__va(MAX_LOW_PFN * PAGE_SIZE); -#else - extern unsigned long memory_end; + reservedpages = 0; - high_memory = (void *)(memory_end & PAGE_MASK); -#endif + for_each_online_node(nid) { + pg_data_t *pgdat = NODE_DATA(nid); + unsigned long node_pages = 0; + void *node_high_memory; + int i; + + num_physpages += pgdat->node_present_pages; + + if (pgdat->node_spanned_pages) + node_pages = free_all_bootmem_node(pgdat); + + totalram_pages += node_pages; - max_mapnr = num_physpages = MAP_NR(high_memory) - MAP_NR(memory_start); + for (i = 0; i < node_pages; i++) + if (PageReserved(pgdat->node_mem_map + i)) + reservedpages++; + + node_high_memory = (void *)((pgdat->node_start_pfn + + pgdat->node_spanned_pages) << + PAGE_SHIFT); + if (node_high_memory > high_memory) + high_memory = node_high_memory; + } /* clear the zero-page */ memset(empty_zero_page, 0, PAGE_SIZE); @@ -229,16 +227,6 @@ void __init mem_init(void) clear_page = clear_page_nommu; #endif - /* this will put all low memory onto the freelists */ - totalram_pages += free_all_bootmem_node(NODE_DATA(0)); - reservedpages = 0; - for (tmp = 0; tmp < num_physpages; tmp++) - /* - * Only count reserved RAM pages - */ - if (PageReserved(mem_map+tmp)) - reservedpages++; - codesize = (unsigned long) &_etext - (unsigned long) &_text; datasize = (unsigned long) &_edata - (unsigned long) &_etext; initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; @@ -250,7 +238,7 @@ void __init mem_init(void) printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, " "%dk reserved, %dk data, %dk init)\n", (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), - max_mapnr << (PAGE_SHIFT-10), + totalram_pages << (PAGE_SHIFT-10), codesize >> 10, reservedpages << (PAGE_SHIFT-10), datasize >> 10, @@ -289,4 +277,3 @@ void free_initrd_mem(unsigned long start, unsigned long end) printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10); } #endif - diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types index 4fe0f94..554f801 100644 --- a/arch/sh/tools/mach-types +++ b/arch/sh/tools/mach-types @@ -9,6 +9,7 @@ SE SH_SOLUTION_ENGINE 7751SE SH_7751_SOLUTION_ENGINE 7300SE SH_7300_SOLUTION_ENGINE 7343SE SH_7343_SOLUTION_ENGINE +7780SE SH_7780_SOLUTION_ENGINE 73180SE SH_73180_SOLUTION_ENGINE 7751SYSTEMH SH_7751_SYSTEMH HP6XX SH_HP6XX @@ -26,6 +27,7 @@ SH03 SH_SH03 LANDISK SH_LANDISK R7780RP SH_R7780RP R7780MP SH_R7780MP +R7785RP SH_R7785RP TITAN SH_TITAN SHMIN SH_SHMIN 7710VOIPGW SH_7710VOIPGW diff --git a/arch/sh64/kernel/vmlinux.lds.S b/arch/sh64/kernel/vmlinux.lds.S index a59c5e998..4f9616f 100644 --- a/arch/sh64/kernel/vmlinux.lds.S +++ b/arch/sh64/kernel/vmlinux.lds.S @@ -85,7 +85,7 @@ SECTIONS . = ALIGN(PAGE_SIZE); .data.page_aligned : C_PHYS(.data.page_aligned) { *(.data.page_aligned) } - . = ALIGN(L1_CACHE_BYTES); + . = ALIGN(PAGE_SIZE); __per_cpu_start = .; .data.percpu : C_PHYS(.data.percpu) { *(.data.percpu) } __per_cpu_end = . ; diff --git a/arch/sh64/mach-cayman/iomap.c b/arch/sh64/mach-cayman/iomap.c index 2d06e9a..a5c645f 100644 --- a/arch/sh64/mach-cayman/iomap.c +++ b/arch/sh64/mach-cayman/iomap.c @@ -9,7 +9,6 @@ * License. See the file "COPYING" in the main directory of this archive * for more details. */ -#include <linux/pci.h> #include <asm/io.h> #include <asm/cayman.h> diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c index e2d9c01..4e07bdb 100644 --- a/arch/sparc/kernel/sun4m_smp.c +++ b/arch/sparc/kernel/sun4m_smp.c @@ -405,7 +405,7 @@ void __init smp4m_blackbox_current(unsigned *addr) addr[0] = 0x81580000 | rd; /* rd %tbr, reg */ addr[2] = 0x8130200a | rd | rs1; /* srl reg, 0xa, reg */ - addr[4] = 0x8008200c | rd | rs1; /* and reg, 3, reg */ + addr[4] = 0x8008200c | rd | rs1; /* and reg, 0xc, reg */ } void __init sun4m_init_smp(void) diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S index e5c24e0..f0bb6e6 100644 --- a/arch/sparc/kernel/vmlinux.lds.S +++ b/arch/sparc/kernel/vmlinux.lds.S @@ -65,7 +65,7 @@ SECTIONS __initramfs_end = .; #endif - . = ALIGN(32); + . = ALIGN(4096); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig index 590a41b..ad8d6b2 100644 --- a/arch/sparc64/Kconfig +++ b/arch/sparc64/Kconfig @@ -34,6 +34,10 @@ config MMU bool default y +config QUICKLIST + bool + default y + config STACKTRACE_SUPPORT bool default y @@ -306,6 +310,7 @@ config SUN_IO config PCI bool "PCI support" + select ARCH_SUPPORTS_MSI help Find out whether you have a PCI motherboard. PCI is the name of a bus system, i.e. the way the CPU talks to the other stuff inside diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig index 120c9c3..37c2d36 100644 --- a/arch/sparc64/defconfig +++ b/arch/sparc64/defconfig @@ -1,15 +1,16 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.21-rc4 -# Sat Mar 17 14:18:44 2007 +# Linux kernel version: 2.6.21 +# Sun May 6 22:46:54 2007 # CONFIG_SPARC=y CONFIG_SPARC64=y +CONFIG_GENERIC_TIME=y +CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_64BIT=y CONFIG_MMU=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_LOCKDEP_SUPPORT=y -CONFIG_TIME_INTERPOLATION=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y # CONFIG_ARCH_HAS_ILOG2_U32 is not set # CONFIG_ARCH_HAS_ILOG2_U64 is not set @@ -108,6 +109,9 @@ CONFIG_GENERIC_HARDIRQS=y # # General machine setup # +CONFIG_TICK_ONESHOT=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y # CONFIG_SMP is not set CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_TABLE=m @@ -140,8 +144,7 @@ CONFIG_SELECT_MEMORY_MODEL=y CONFIG_SPARSEMEM_MANUAL=y CONFIG_SPARSEMEM=y CONFIG_HAVE_MEMORY_PRESENT=y -# CONFIG_SPARSEMEM_STATIC is not set -CONFIG_SPARSEMEM_EXTREME=y +CONFIG_SPARSEMEM_STATIC=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_RESOURCES_64BIT=y CONFIG_ZONE_DMA_FLAG=0 @@ -151,6 +154,7 @@ CONFIG_SUN_AUXIO=y CONFIG_SUN_IO=y CONFIG_PCI=y CONFIG_PCI_DOMAINS=y +CONFIG_ARCH_SUPPORTS_MSI=y CONFIG_PCI_MSI=y # CONFIG_PCI_DEBUG is not set CONFIG_SUN_OPENPROMFS=m @@ -178,7 +182,6 @@ CONFIG_NET=y # # Networking options # -# CONFIG_NETDEBUG is not set CONFIG_PACKET=y CONFIG_PACKET_MMAP=y CONFIG_UNIX=y @@ -219,6 +222,7 @@ CONFIG_IPV6=m CONFIG_IPV6_PRIVACY=y CONFIG_IPV6_ROUTER_PREF=y CONFIG_IPV6_ROUTE_INFO=y +CONFIG_IPV6_OPTIMISTIC_DAD=y CONFIG_INET6_AH=m CONFIG_INET6_ESP=m CONFIG_INET6_IPCOMP=m @@ -292,6 +296,14 @@ CONFIG_NET_TCPPROBE=m # CONFIG_HAMRADIO is not set # CONFIG_IRDA is not set # CONFIG_BT is not set +# CONFIG_AF_RXRPC is not set + +# +# Wireless +# +# CONFIG_CFG80211 is not set +# CONFIG_WIRELESS_EXT is not set +# CONFIG_MAC80211 is not set # CONFIG_IEEE80211 is not set # @@ -312,10 +324,6 @@ CONFIG_FW_LOADER=y # Connector - unified userspace <-> kernelspace linker # CONFIG_CONNECTOR=m - -# -# Memory Technology Devices (MTD) -# # CONFIG_MTD is not set # @@ -383,7 +391,6 @@ CONFIG_BLK_DEV_IDEPCI=y # CONFIG_BLK_DEV_OPTI621 is not set CONFIG_BLK_DEV_IDEDMA_PCI=y # CONFIG_BLK_DEV_IDEDMA_FORCED is not set -CONFIG_IDEDMA_PCI_AUTO=y CONFIG_IDEDMA_ONLYDISK=y # CONFIG_BLK_DEV_AEC62XX is not set CONFIG_BLK_DEV_ALI15X3=y @@ -413,7 +420,6 @@ CONFIG_BLK_DEV_ALI15X3=y # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_IVB is not set -CONFIG_IDEDMA_AUTO=y # CONFIG_BLK_DEV_HD is not set # @@ -443,6 +449,7 @@ CONFIG_SCSI_MULTI_LUN=y CONFIG_SCSI_CONSTANTS=y # CONFIG_SCSI_LOGGING is not set # CONFIG_SCSI_SCAN_ASYNC is not set +CONFIG_SCSI_WAIT_SCAN=m # # SCSI Transports @@ -485,6 +492,7 @@ CONFIG_ISCSI_TCP=m # CONFIG_SCSI_DC395x is not set # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_DEBUG is not set +# CONFIG_SCSI_ESP_CORE is not set # CONFIG_SCSI_SUNESP is not set # CONFIG_SCSI_SRP is not set @@ -628,9 +636,10 @@ CONFIG_BNX2=m # CONFIG_TR is not set # -# Wireless LAN (non-hamradio) +# Wireless LAN # -# CONFIG_NET_RADIO is not set +# CONFIG_WLAN_PRE80211 is not set +# CONFIG_WLAN_80211 is not set # # Wan interfaces @@ -695,6 +704,12 @@ CONFIG_KEYBOARD_LKKBD=m # CONFIG_KEYBOARD_STOWAWAY is not set CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=y +CONFIG_MOUSE_PS2_ALPS=y +CONFIG_MOUSE_PS2_LOGIPS2PP=y +CONFIG_MOUSE_PS2_SYNAPTICS=y +CONFIG_MOUSE_PS2_LIFEBOOK=y +CONFIG_MOUSE_PS2_TRACKPOINT=y +# CONFIG_MOUSE_PS2_TOUCHKIT is not set CONFIG_MOUSE_SERIAL=y # CONFIG_MOUSE_VSXXXAA is not set # CONFIG_INPUT_JOYSTICK is not set @@ -702,6 +717,7 @@ CONFIG_MOUSE_SERIAL=y CONFIG_INPUT_MISC=y CONFIG_INPUT_SPARCSPKR=y # CONFIG_INPUT_UINPUT is not set +# CONFIG_INPUT_POLLDEV is not set # # Hardware I/O ports @@ -763,11 +779,8 @@ CONFIG_RTC=y # TPM devices # # CONFIG_TCG_TPM is not set - -# -# I2C support -# CONFIG_I2C=y +CONFIG_I2C_BOARDINFO=y # CONFIG_I2C_CHARDEV is not set # @@ -791,17 +804,17 @@ CONFIG_I2C_ALGOBIT=y # CONFIG_I2C_NFORCE2 is not set # CONFIG_I2C_OCORES is not set # CONFIG_I2C_PARPORT_LIGHT is not set -# CONFIG_I2C_PASEMI is not set # CONFIG_I2C_PROSAVAGE is not set # CONFIG_I2C_SAVAGE4 is not set +# CONFIG_I2C_SIMTEC is not set # CONFIG_I2C_SIS5595 is not set # CONFIG_I2C_SIS630 is not set # CONFIG_I2C_SIS96X is not set # CONFIG_I2C_STUB is not set +# CONFIG_I2C_TINY_USB is not set # CONFIG_I2C_VIA is not set # CONFIG_I2C_VIAPRO is not set # CONFIG_I2C_VOODOO3 is not set -# CONFIG_I2C_PCA_ISA is not set # # Miscellaneous I2C Chip support @@ -912,7 +925,7 @@ CONFIG_FB_MODE_HELPERS=y CONFIG_FB_TILEBLITTING=y # -# Frambuffer hardware drivers +# Frame buffer hardware drivers # # CONFIG_FB_CIRRUS is not set # CONFIG_FB_PM2 is not set @@ -937,6 +950,8 @@ CONFIG_FB_RADEON_I2C=y # CONFIG_FB_3DFX is not set # CONFIG_FB_VOODOO1 is not set # CONFIG_FB_TRIDENT is not set +# CONFIG_FB_XVR500 is not set +# CONFIG_FB_XVR2500 is not set # CONFIG_FB_PCI is not set # CONFIG_FB_VIRTUAL is not set @@ -1094,6 +1109,14 @@ CONFIG_HID=y # CONFIG_HID_DEBUG is not set # +# USB Input Devices +# +CONFIG_USB_HID=y +# CONFIG_USB_HIDINPUT_POWERBOOK is not set +# CONFIG_HID_FF is not set +CONFIG_USB_HIDDEV=y + +# # USB support # CONFIG_USB_ARCH_HAS_HCD=y @@ -1106,6 +1129,7 @@ CONFIG_USB=y # Miscellaneous USB options # CONFIG_USB_DEVICEFS=y +# CONFIG_USB_DEVICE_CLASS is not set # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_OTG is not set @@ -1156,10 +1180,6 @@ CONFIG_USB_STORAGE=m # # USB Input Devices # -CONFIG_USB_HID=y -# CONFIG_USB_HIDINPUT_POWERBOOK is not set -# CONFIG_HID_FF is not set -CONFIG_USB_HIDDEV=y # CONFIG_USB_AIPTEK is not set # CONFIG_USB_WACOM is not set # CONFIG_USB_ACECAD is not set @@ -1524,6 +1544,7 @@ CONFIG_CRYPTO_ECB=m CONFIG_CRYPTO_CBC=y CONFIG_CRYPTO_PCBC=m CONFIG_CRYPTO_LRW=m +# CONFIG_CRYPTO_CRYPTD is not set CONFIG_CRYPTO_DES=y CONFIG_CRYPTO_FCRYPT=m CONFIG_CRYPTO_BLOWFISH=m diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile index eff0c01..6bf6fb6 100644 --- a/arch/sparc64/kernel/Makefile +++ b/arch/sparc64/kernel/Makefile @@ -17,7 +17,7 @@ obj-y := process.o setup.o cpu.o idprom.o \ obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_PCI) += ebus.o isa.o pci_common.o pci_iommu.o \ pci_psycho.o pci_sabre.o pci_schizo.o \ - pci_sun4v.o pci_sun4v_asm.o + pci_sun4v.o pci_sun4v_asm.o pci_fire.o obj-$(CONFIG_SMP) += smp.o trampoline.o obj-$(CONFIG_SPARC32_COMPAT) += sys32.o sys_sparc32.o signal32.o obj-$(CONFIG_BINFMT_ELF32) += binfmt_elf32.o diff --git a/arch/sparc64/kernel/central.c b/arch/sparc64/kernel/central.c index c65b2f9..8230099 100644 --- a/arch/sparc64/kernel/central.c +++ b/arch/sparc64/kernel/central.c @@ -98,7 +98,7 @@ void apply_central_ranges(struct linux_central *central, central->num_central_ranges); } -void * __init central_alloc_bootmem(unsigned long size) +static void * __init central_alloc_bootmem(unsigned long size) { void *ret; @@ -116,7 +116,7 @@ static unsigned long prom_reg_to_paddr(struct linux_prom_registers *r) return ret | (unsigned long) r->phys_addr; } -static void probe_other_fhcs(void) +static void __init probe_other_fhcs(void) { struct device_node *dp; const struct linux_prom64_registers *fpregs; @@ -298,7 +298,7 @@ static void init_all_fhc_hw(void) } -void central_probe(void) +void __init central_probe(void) { struct linux_prom_registers fpregs[6]; const struct linux_prom_registers *pr; diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c index 6241e3d..3edc18e 100644 --- a/arch/sparc64/kernel/irq.c +++ b/arch/sparc64/kernel/irq.c @@ -279,7 +279,7 @@ static void sun4u_irq_enable(unsigned int virt_irq) struct irq_handler_data *data = get_irq_chip_data(virt_irq); if (likely(data)) { - unsigned long cpuid, imap; + unsigned long cpuid, imap, val; unsigned int tid; cpuid = irq_choose_cpu(virt_irq); @@ -287,7 +287,11 @@ static void sun4u_irq_enable(unsigned int virt_irq) tid = sun4u_compute_tid(imap, cpuid); - upa_writel(tid | IMAP_VALID, imap); + val = upa_readq(imap); + val &= ~(IMAP_TID_UPA | IMAP_TID_JBUS | + IMAP_AID_SAFARI | IMAP_NID_SAFARI); + val |= tid | IMAP_VALID; + upa_writeq(val, imap); } } @@ -297,10 +301,10 @@ static void sun4u_irq_disable(unsigned int virt_irq) if (likely(data)) { unsigned long imap = data->imap; - u32 tmp = upa_readl(imap); + u32 tmp = upa_readq(imap); tmp &= ~IMAP_VALID; - upa_writel(tmp, imap); + upa_writeq(tmp, imap); } } @@ -309,7 +313,7 @@ static void sun4u_irq_end(unsigned int virt_irq) struct irq_handler_data *data = get_irq_chip_data(virt_irq); if (likely(data)) - upa_writel(ICLR_IDLE, data->iclr); + upa_writeq(ICLR_IDLE, data->iclr); } static void sun4v_irq_enable(unsigned int virt_irq) @@ -465,7 +469,7 @@ unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap) BUG_ON(tlb_type == hypervisor); - ino = (upa_readl(imap) & (IMAP_IGN | IMAP_INO)) + inofixup; + ino = (upa_readq(imap) & (IMAP_IGN | IMAP_INO)) + inofixup; bucket = &ivector_table[ino]; if (!bucket->virt_irq) { bucket->virt_irq = virt_irq_alloc(__irq(bucket)); diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c index 023af41..af2c7ff 100644 --- a/arch/sparc64/kernel/pci.c +++ b/arch/sparc64/kernel/pci.c @@ -190,6 +190,7 @@ extern void schizo_init(struct device_node *, const char *); extern void schizo_plus_init(struct device_node *, const char *); extern void tomatillo_init(struct device_node *, const char *); extern void sun4v_pci_init(struct device_node *, const char *); +extern void fire_pci_init(struct device_node *, const char *); static struct { char *model_name; @@ -207,6 +208,7 @@ static struct { { "SUNW,tomatillo", tomatillo_init }, { "pci108e,a801", tomatillo_init }, { "SUNW,sun4v-pci", sun4v_pci_init }, + { "pciex108e,80f0", fire_pci_init }, }; #define PCI_NUM_CONTROLLER_TYPES (sizeof(pci_controller_table) / \ sizeof(pci_controller_table[0])) @@ -436,6 +438,13 @@ struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm, printk(" class: 0x%x device name: %s\n", dev->class, pci_name(dev)); + /* I have seen IDE devices which will not respond to + * the bmdma simplex check reads if bus mastering is + * disabled. + */ + if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) + pci_set_master(dev); + dev->current_state = 4; /* unknown power state */ dev->error_state = pci_channel_io_normal; @@ -468,7 +477,7 @@ struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm, return dev; } -static void __init apb_calc_first_last(u8 map, u32 *first_p, u32 *last_p) +static void __devinit apb_calc_first_last(u8 map, u32 *first_p, u32 *last_p) { u32 idx, first, last; @@ -497,9 +506,9 @@ static void __init pci_resource_adjust(struct resource *res, /* Cook up fake bus resources for SUNW,simba PCI bridges which lack * a proper 'ranges' property. */ -static void __init apb_fake_ranges(struct pci_dev *dev, - struct pci_bus *bus, - struct pci_pbm_info *pbm) +static void __devinit apb_fake_ranges(struct pci_dev *dev, + struct pci_bus *bus, + struct pci_pbm_info *pbm) { struct resource *res; u32 first, last; @@ -522,15 +531,15 @@ static void __init apb_fake_ranges(struct pci_dev *dev, pci_resource_adjust(res, &pbm->mem_space); } -static void __init pci_of_scan_bus(struct pci_pbm_info *pbm, - struct device_node *node, - struct pci_bus *bus); +static void __devinit pci_of_scan_bus(struct pci_pbm_info *pbm, + struct device_node *node, + struct pci_bus *bus); #define GET_64BIT(prop, i) ((((u64) (prop)[(i)]) << 32) | (prop)[(i)+1]) -void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm, - struct device_node *node, - struct pci_dev *dev) +static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm, + struct device_node *node, + struct pci_dev *dev) { struct pci_bus *bus; const u32 *busrange, *ranges; @@ -629,9 +638,9 @@ simba_cont: pci_of_scan_bus(pbm, node, bus); } -static void __init pci_of_scan_bus(struct pci_pbm_info *pbm, - struct device_node *node, - struct pci_bus *bus) +static void __devinit pci_of_scan_bus(struct pci_pbm_info *pbm, + struct device_node *node, + struct pci_bus *bus) { struct device_node *child; const u32 *reg; @@ -733,7 +742,7 @@ int pci_host_bridge_write_pci_cfg(struct pci_bus *bus_dev, return PCIBIOS_SUCCESSFUL; } -struct pci_bus * __init pci_scan_one_pbm(struct pci_pbm_info *pbm) +struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm) { struct pci_controller_info *p = pbm->parent; struct device_node *node = pbm->prom_node; @@ -1092,10 +1101,10 @@ int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc) return -EINVAL; err = p->setup_msi_irq(&virt_irq, pdev, desc); - if (err < 0) + if (err) return err; - return virt_irq; + return 0; } void arch_teardown_msi_irq(unsigned int virt_irq) diff --git a/arch/sparc64/kernel/pci_fire.c b/arch/sparc64/kernel/pci_fire.c new file mode 100644 index 0000000..0fe6266 --- /dev/null +++ b/arch/sparc64/kernel/pci_fire.c @@ -0,0 +1,418 @@ +/* pci_fire.c: Sun4u platform PCI-E controller support. + * + * Copyright (C) 2007 David S. Miller (davem@davemloft.net) + */ +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/slab.h> +#include <linux/init.h> + +#include <asm/pbm.h> +#include <asm/oplib.h> +#include <asm/prom.h> + +#include "pci_impl.h" + +#define fire_read(__reg) \ +({ u64 __ret; \ + __asm__ __volatile__("ldxa [%1] %2, %0" \ + : "=r" (__ret) \ + : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \ + : "memory"); \ + __ret; \ +}) +#define fire_write(__reg, __val) \ + __asm__ __volatile__("stxa %0, [%1] %2" \ + : /* no outputs */ \ + : "r" (__val), "r" (__reg), \ + "i" (ASI_PHYS_BYPASS_EC_E) \ + : "memory") + +/* Fire config space address format is nearly identical to + * that of SCHIZO and PSYCHO, except that in order to accomodate + * PCI-E extended config space the encoding can handle 12 bits + * of register address: + * + * 32 28 27 20 19 15 14 12 11 2 1 0 + * ------------------------------------------------- + * |0 0 0 0 0| bus | device | function | reg | 0 0 | + * ------------------------------------------------- + */ +#define FIRE_CONFIG_BASE(PBM) ((PBM)->config_space) +#define FIRE_CONFIG_ENCODE(BUS, DEVFN, REG) \ + (((unsigned long)(BUS) << 20) | \ + ((unsigned long)(DEVFN) << 12) | \ + ((unsigned long)(REG))) + +static void *fire_pci_config_mkaddr(struct pci_pbm_info *pbm, + unsigned char bus, + unsigned int devfn, + int where) +{ + if (!pbm) + return NULL; + return (void *) + (FIRE_CONFIG_BASE(pbm) | + FIRE_CONFIG_ENCODE(bus, devfn, where)); +} + +/* FIRE PCI configuration space accessors. */ + +static int fire_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn, + int where, int size, u32 *value) +{ + struct pci_pbm_info *pbm = bus_dev->sysdata; + unsigned char bus = bus_dev->number; + u32 *addr; + u16 tmp16; + u8 tmp8; + + if (bus_dev == pbm->pci_bus && devfn == 0x00) + return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where, + size, value); + switch (size) { + case 1: + *value = 0xff; + break; + case 2: + *value = 0xffff; + break; + case 4: + *value = 0xffffffff; + break; + } + + addr = fire_pci_config_mkaddr(pbm, bus, devfn, where); + if (!addr) + return PCIBIOS_SUCCESSFUL; + + switch (size) { + case 1: + pci_config_read8((u8 *)addr, &tmp8); + *value = tmp8; + break; + + case 2: + if (where & 0x01) { + printk("pci_read_config_word: misaligned reg [%x]\n", + where); + return PCIBIOS_SUCCESSFUL; + } + pci_config_read16((u16 *)addr, &tmp16); + *value = tmp16; + break; + + case 4: + if (where & 0x03) { + printk("pci_read_config_dword: misaligned reg [%x]\n", + where); + return PCIBIOS_SUCCESSFUL; + } + + pci_config_read32(addr, value); + break; + } + return PCIBIOS_SUCCESSFUL; +} + +static int fire_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn, + int where, int size, u32 value) +{ + struct pci_pbm_info *pbm = bus_dev->sysdata; + unsigned char bus = bus_dev->number; + u32 *addr; + + if (bus_dev == pbm->pci_bus && devfn == 0x00) + return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where, + size, value); + addr = fire_pci_config_mkaddr(pbm, bus, devfn, where); + if (!addr) + return PCIBIOS_SUCCESSFUL; + + switch (size) { + case 1: + pci_config_write8((u8 *)addr, value); + break; + + case 2: + if (where & 0x01) { + printk("pci_write_config_word: misaligned reg [%x]\n", + where); + return PCIBIOS_SUCCESSFUL; + } + pci_config_write16((u16 *)addr, value); + break; + + case 4: + if (where & 0x03) { + printk("pci_write_config_dword: misaligned reg [%x]\n", + where); + return PCIBIOS_SUCCESSFUL; + } + + pci_config_write32(addr, value); + } + return PCIBIOS_SUCCESSFUL; +} + +static struct pci_ops pci_fire_ops = { + .read = fire_read_pci_cfg, + .write = fire_write_pci_cfg, +}; + +static void pbm_scan_bus(struct pci_controller_info *p, + struct pci_pbm_info *pbm) +{ + pbm->pci_bus = pci_scan_one_pbm(pbm); +} + +static void pci_fire_scan_bus(struct pci_controller_info *p) +{ + struct device_node *dp; + + if ((dp = p->pbm_A.prom_node) != NULL) + pbm_scan_bus(p, &p->pbm_A); + + if ((dp = p->pbm_B.prom_node) != NULL) + pbm_scan_bus(p, &p->pbm_B); + + /* XXX register error interrupt handlers XXX */ +} + +#define FIRE_IOMMU_CONTROL 0x40000UL +#define FIRE_IOMMU_TSBBASE 0x40008UL +#define FIRE_IOMMU_FLUSH 0x40100UL +#define FIRE_IOMMU_FLUSHINV 0x40100UL + +static void pci_fire_pbm_iommu_init(struct pci_pbm_info *pbm) +{ + struct iommu *iommu = pbm->iommu; + u32 vdma[2], dma_mask; + u64 control; + int tsbsize; + + /* No virtual-dma property on these guys, use largest size. */ + vdma[0] = 0xc0000000; /* base */ + vdma[1] = 0x40000000; /* size */ + dma_mask = 0xffffffff; + tsbsize = 128; + + /* Register addresses. */ + iommu->iommu_control = pbm->pbm_regs + FIRE_IOMMU_CONTROL; + iommu->iommu_tsbbase = pbm->pbm_regs + FIRE_IOMMU_TSBBASE; + iommu->iommu_flush = pbm->pbm_regs + FIRE_IOMMU_FLUSH; + iommu->iommu_flushinv = pbm->pbm_regs + FIRE_IOMMU_FLUSHINV; + + /* We use the main control/status register of FIRE as the write + * completion register. + */ + iommu->write_complete_reg = pbm->controller_regs + 0x410000UL; + + /* + * Invalidate TLB Entries. + */ + fire_write(iommu->iommu_flushinv, ~(u64)0); + + pci_iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask); + + fire_write(iommu->iommu_tsbbase, __pa(iommu->page_table) | 0x7UL); + + control = fire_read(iommu->iommu_control); + control |= (0x00000400 /* TSB cache snoop enable */ | + 0x00000300 /* Cache mode */ | + 0x00000002 /* Bypass enable */ | + 0x00000001 /* Translation enable */); + fire_write(iommu->iommu_control, control); +} + +/* Based at pbm->controller_regs */ +#define FIRE_PARITY_CONTROL 0x470010UL +#define FIRE_PARITY_ENAB 0x8000000000000000UL +#define FIRE_FATAL_RESET_CTL 0x471028UL +#define FIRE_FATAL_RESET_SPARE 0x0000000004000000UL +#define FIRE_FATAL_RESET_MB 0x0000000002000000UL +#define FIRE_FATAL_RESET_CPE 0x0000000000008000UL +#define FIRE_FATAL_RESET_APE 0x0000000000004000UL +#define FIRE_FATAL_RESET_PIO 0x0000000000000040UL +#define FIRE_FATAL_RESET_JW 0x0000000000000004UL +#define FIRE_FATAL_RESET_JI 0x0000000000000002UL +#define FIRE_FATAL_RESET_JR 0x0000000000000001UL +#define FIRE_CORE_INTR_ENABLE 0x471800UL + +/* Based at pbm->pbm_regs */ +#define FIRE_TLU_CTRL 0x80000UL +#define FIRE_TLU_CTRL_TIM 0x00000000da000000UL +#define FIRE_TLU_CTRL_QDET 0x0000000000000100UL +#define FIRE_TLU_CTRL_CFG 0x0000000000000001UL +#define FIRE_TLU_DEV_CTRL 0x90008UL +#define FIRE_TLU_LINK_CTRL 0x90020UL +#define FIRE_TLU_LINK_CTRL_CLK 0x0000000000000040UL +#define FIRE_LPU_RESET 0xe2008UL +#define FIRE_LPU_LLCFG 0xe2200UL +#define FIRE_LPU_LLCFG_VC0 0x0000000000000100UL +#define FIRE_LPU_FCTRL_UCTRL 0xe2240UL +#define FIRE_LPU_FCTRL_UCTRL_N 0x0000000000000002UL +#define FIRE_LPU_FCTRL_UCTRL_P 0x0000000000000001UL +#define FIRE_LPU_TXL_FIFOP 0xe2430UL +#define FIRE_LPU_LTSSM_CFG2 0xe2788UL +#define FIRE_LPU_LTSSM_CFG3 0xe2790UL +#define FIRE_LPU_LTSSM_CFG4 0xe2798UL +#define FIRE_LPU_LTSSM_CFG5 0xe27a0UL +#define FIRE_DMC_IENAB 0x31800UL +#define FIRE_DMC_DBG_SEL_A 0x53000UL +#define FIRE_DMC_DBG_SEL_B 0x53008UL +#define FIRE_PEC_IENAB 0x51800UL + +static void pci_fire_hw_init(struct pci_pbm_info *pbm) +{ + u64 val; + + fire_write(pbm->controller_regs + FIRE_PARITY_CONTROL, + FIRE_PARITY_ENAB); + + fire_write(pbm->controller_regs + FIRE_FATAL_RESET_CTL, + (FIRE_FATAL_RESET_SPARE | + FIRE_FATAL_RESET_MB | + FIRE_FATAL_RESET_CPE | + FIRE_FATAL_RESET_APE | + FIRE_FATAL_RESET_PIO | + FIRE_FATAL_RESET_JW | + FIRE_FATAL_RESET_JI | + FIRE_FATAL_RESET_JR)); + + fire_write(pbm->controller_regs + FIRE_CORE_INTR_ENABLE, ~(u64)0); + + val = fire_read(pbm->pbm_regs + FIRE_TLU_CTRL); + val |= (FIRE_TLU_CTRL_TIM | + FIRE_TLU_CTRL_QDET | + FIRE_TLU_CTRL_CFG); + fire_write(pbm->pbm_regs + FIRE_TLU_CTRL, val); + fire_write(pbm->pbm_regs + FIRE_TLU_DEV_CTRL, 0); + fire_write(pbm->pbm_regs + FIRE_TLU_LINK_CTRL, + FIRE_TLU_LINK_CTRL_CLK); + + fire_write(pbm->pbm_regs + FIRE_LPU_RESET, 0); + fire_write(pbm->pbm_regs + FIRE_LPU_LLCFG, + FIRE_LPU_LLCFG_VC0); + fire_write(pbm->pbm_regs + FIRE_LPU_FCTRL_UCTRL, + (FIRE_LPU_FCTRL_UCTRL_N | + FIRE_LPU_FCTRL_UCTRL_P)); + fire_write(pbm->pbm_regs + FIRE_LPU_TXL_FIFOP, + ((0xffff << 16) | (0x0000 << 0))); + fire_write(pbm->pbm_regs + FIRE_LPU_LTSSM_CFG2, 3000000); + fire_write(pbm->pbm_regs + FIRE_LPU_LTSSM_CFG3, 500000); + fire_write(pbm->pbm_regs + FIRE_LPU_LTSSM_CFG4, + (2 << 16) | (140 << 8)); + fire_write(pbm->pbm_regs + FIRE_LPU_LTSSM_CFG5, 0); + + fire_write(pbm->pbm_regs + FIRE_DMC_IENAB, ~(u64)0); + fire_write(pbm->pbm_regs + FIRE_DMC_DBG_SEL_A, 0); + fire_write(pbm->pbm_regs + FIRE_DMC_DBG_SEL_B, 0); + + fire_write(pbm->pbm_regs + FIRE_PEC_IENAB, ~(u64)0); +} + +static void pci_fire_pbm_init(struct pci_controller_info *p, + struct device_node *dp, u32 portid) +{ + const struct linux_prom64_registers *regs; + struct pci_pbm_info *pbm; + const u32 *ino_bitmap; + const unsigned int *busrange; + + if ((portid & 1) == 0) + pbm = &p->pbm_A; + else + pbm = &p->pbm_B; + + pbm->portid = portid; + pbm->parent = p; + pbm->prom_node = dp; + pbm->name = dp->full_name; + + regs = of_get_property(dp, "reg", NULL); + pbm->pbm_regs = regs[0].phys_addr; + pbm->controller_regs = regs[1].phys_addr - 0x410000UL; + + printk("%s: SUN4U PCIE Bus Module\n", pbm->name); + + pci_determine_mem_io_space(pbm); + + ino_bitmap = of_get_property(dp, "ino-bitmap", NULL); + pbm->ino_bitmap = (((u64)ino_bitmap[1] << 32UL) | + ((u64)ino_bitmap[0] << 0UL)); + + busrange = of_get_property(dp, "bus-range", NULL); + pbm->pci_first_busno = busrange[0]; + pbm->pci_last_busno = busrange[1]; + + pci_fire_hw_init(pbm); + pci_fire_pbm_iommu_init(pbm); +} + +static inline int portid_compare(u32 x, u32 y) +{ + if (x == (y ^ 1)) + return 1; + return 0; +} + +void fire_pci_init(struct device_node *dp, const char *model_name) +{ + struct pci_controller_info *p; + u32 portid = of_getintprop_default(dp, "portid", 0xff); + struct iommu *iommu; + + for (p = pci_controller_root; p; p = p->next) { + struct pci_pbm_info *pbm; + + if (p->pbm_A.prom_node && p->pbm_B.prom_node) + continue; + + pbm = (p->pbm_A.prom_node ? + &p->pbm_A : + &p->pbm_B); + + if (portid_compare(pbm->portid, portid)) { + pci_fire_pbm_init(p, dp, portid); + return; + } + } + + p = kzalloc(sizeof(struct pci_controller_info), GFP_ATOMIC); + if (!p) + goto fatal_memory_error; + + iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC); + if (!iommu) + goto fatal_memory_error; + + p->pbm_A.iommu = iommu; + + iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC); + if (!iommu) + goto fatal_memory_error; + + p->pbm_B.iommu = iommu; + + p->next = pci_controller_root; + pci_controller_root = p; + + p->index = pci_num_controllers++; + + p->scan_bus = pci_fire_scan_bus; + /* XXX MSI support XXX */ + p->pci_ops = &pci_fire_ops; + + /* Like PSYCHO and SCHIZO we have a 2GB aligned area + * for memory space. + */ + pci_memspace_mask = 0x7fffffffUL; + + pci_fire_pbm_init(p, dp, portid); + return; + +fatal_memory_error: + prom_printf("PCI_FIRE: Fatal memory allocation error.\n"); + prom_halt(); +} diff --git a/arch/sparc64/kernel/pci_iommu.c b/arch/sparc64/kernel/pci_iommu.c index 6671277..9e405cb 100644 --- a/arch/sparc64/kernel/pci_iommu.c +++ b/arch/sparc64/kernel/pci_iommu.c @@ -37,17 +37,21 @@ /* Must be invoked under the IOMMU lock. */ static void __iommu_flushall(struct iommu *iommu) { - unsigned long tag; - int entry; + if (iommu->iommu_flushinv) { + pci_iommu_write(iommu->iommu_flushinv, ~(u64)0); + } else { + unsigned long tag; + int entry; - tag = iommu->iommu_flush + (0xa580UL - 0x0210UL); - for (entry = 0; entry < 16; entry++) { - pci_iommu_write(tag, 0); - tag += 8; - } + tag = iommu->iommu_flush + (0xa580UL - 0x0210UL); + for (entry = 0; entry < 16; entry++) { + pci_iommu_write(tag, 0); + tag += 8; + } - /* Ensure completion of previous PIO writes. */ - (void) pci_iommu_read(iommu->write_complete_reg); + /* Ensure completion of previous PIO writes. */ + (void) pci_iommu_read(iommu->write_complete_reg); + } } #define IOPTE_CONSISTENT(CTX) \ diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c index 94295c2..1ccf4c9 100644 --- a/arch/sparc64/kernel/pci_sun4v.c +++ b/arch/sparc64/kernel/pci_sun4v.c @@ -1169,8 +1169,6 @@ static int pci_sun4v_setup_msi_irq(unsigned int *virt_irq_p, if (!devino) goto out_err; - set_irq_msi(*virt_irq_p, entry); - msiqid = ((devino - pbm->msiq_first_devino) + pbm->msiq_first); @@ -1204,6 +1202,8 @@ static int pci_sun4v_setup_msi_irq(unsigned int *virt_irq_p, msg.address_lo = pbm->msi32_start; } msg.data = msi_num; + + set_irq_msi(*virt_irq_p, entry); write_msi_msg(*virt_irq_p, &msg); irq_install_pre_handler(*virt_irq_p, diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c index 5e1fcd0..c54d4d8 100644 --- a/arch/sparc64/kernel/prom.c +++ b/arch/sparc64/kernel/prom.c @@ -386,11 +386,9 @@ static unsigned int psycho_irq_build(struct device_node *dp, /* Now build the IRQ bucket. */ imap = controller_regs + imap_off; - imap += 4; iclr_off = psycho_iclr_offset(ino); iclr = controller_regs + iclr_off; - iclr += 4; if ((ino & 0x20) == 0) inofixup = ino & 0x03; @@ -398,7 +396,7 @@ static unsigned int psycho_irq_build(struct device_node *dp, return build_irq(inofixup, iclr, imap); } -static void psycho_irq_trans_init(struct device_node *dp) +static void __init psycho_irq_trans_init(struct device_node *dp) { const struct linux_prom64_registers *regs; @@ -613,11 +611,9 @@ static unsigned int sabre_irq_build(struct device_node *dp, /* Now build the IRQ bucket. */ imap = controller_regs + imap_off; - imap += 4; iclr_off = sabre_iclr_offset(ino); iclr = controller_regs + iclr_off; - iclr += 4; if ((ino & 0x20) == 0) inofixup = ino & 0x03; @@ -640,7 +636,7 @@ static unsigned int sabre_irq_build(struct device_node *dp, return virt_irq; } -static void sabre_irq_trans_init(struct device_node *dp) +static void __init sabre_irq_trans_init(struct device_node *dp) { const struct linux_prom64_registers *regs; struct sabre_irq_data *irq_data; @@ -679,13 +675,14 @@ static unsigned long schizo_iclr_offset(unsigned long ino) static unsigned long schizo_ino_to_iclr(unsigned long pbm_regs, unsigned int ino) { - return pbm_regs + schizo_iclr_offset(ino) + 4; + + return pbm_regs + schizo_iclr_offset(ino); } static unsigned long schizo_ino_to_imap(unsigned long pbm_regs, unsigned int ino) { - return pbm_regs + schizo_imap_offset(ino) + 4; + return pbm_regs + schizo_imap_offset(ino); } #define schizo_read(__reg) \ @@ -796,7 +793,8 @@ static unsigned int schizo_irq_build(struct device_node *dp, return virt_irq; } -static void __schizo_irq_trans_init(struct device_node *dp, int is_tomatillo) +static void __init __schizo_irq_trans_init(struct device_node *dp, + int is_tomatillo) { const struct linux_prom64_registers *regs; struct schizo_irq_data *irq_data; @@ -818,12 +816,12 @@ static void __schizo_irq_trans_init(struct device_node *dp, int is_tomatillo) irq_data->chip_version = of_getintprop_default(dp, "version#", 0); } -static void schizo_irq_trans_init(struct device_node *dp) +static void __init schizo_irq_trans_init(struct device_node *dp) { __schizo_irq_trans_init(dp, 0); } -static void tomatillo_irq_trans_init(struct device_node *dp) +static void __init tomatillo_irq_trans_init(struct device_node *dp) { __schizo_irq_trans_init(dp, 1); } @@ -837,7 +835,7 @@ static unsigned int pci_sun4v_irq_build(struct device_node *dp, return sun4v_build_irq(devhandle, devino); } -static void pci_sun4v_irq_trans_init(struct device_node *dp) +static void __init pci_sun4v_irq_trans_init(struct device_node *dp) { const struct linux_prom64_registers *regs; @@ -848,6 +846,85 @@ static void pci_sun4v_irq_trans_init(struct device_node *dp) dp->irq_trans->data = (void *) (unsigned long) ((regs->phys_addr >> 32UL) & 0x0fffffff); } + +struct fire_irq_data { + unsigned long pbm_regs; + u32 portid; +}; + +#define FIRE_IMAP_BASE 0x001000 +#define FIRE_ICLR_BASE 0x001400 + +static unsigned long fire_imap_offset(unsigned long ino) +{ + return FIRE_IMAP_BASE + (ino * 8UL); +} + +static unsigned long fire_iclr_offset(unsigned long ino) +{ + return FIRE_ICLR_BASE + (ino * 8UL); +} + +static unsigned long fire_ino_to_iclr(unsigned long pbm_regs, + unsigned int ino) +{ + return pbm_regs + fire_iclr_offset(ino); +} + +static unsigned long fire_ino_to_imap(unsigned long pbm_regs, + unsigned int ino) +{ + return pbm_regs + fire_imap_offset(ino); +} + +static unsigned int fire_irq_build(struct device_node *dp, + unsigned int ino, + void *_data) +{ + struct fire_irq_data *irq_data = _data; + unsigned long pbm_regs = irq_data->pbm_regs; + unsigned long imap, iclr; + unsigned long int_ctrlr; + + ino &= 0x3f; + + /* Now build the IRQ bucket. */ + imap = fire_ino_to_imap(pbm_regs, ino); + iclr = fire_ino_to_iclr(pbm_regs, ino); + + /* Set the interrupt controller number. */ + int_ctrlr = 1 << 6; + upa_writeq(int_ctrlr, imap); + + /* The interrupt map registers do not have an INO field + * like other chips do. They return zero in the INO + * field, and the interrupt controller number is controlled + * in bits 6 thru 9. So in order for build_irq() to get + * the INO right we pass it in as part of the fixup + * which will get added to the map register zero value + * read by build_irq(). + */ + ino |= (irq_data->portid << 6); + ino -= int_ctrlr; + return build_irq(ino, iclr, imap); +} + +static void __init fire_irq_trans_init(struct device_node *dp) +{ + const struct linux_prom64_registers *regs; + struct fire_irq_data *irq_data; + + dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller)); + dp->irq_trans->irq_build = fire_irq_build; + + irq_data = prom_early_alloc(sizeof(struct fire_irq_data)); + + regs = of_get_property(dp, "reg", NULL); + dp->irq_trans->data = irq_data; + + irq_data->pbm_regs = regs[0].phys_addr; + irq_data->portid = of_getintprop_default(dp, "portid", 0); +} #endif /* CONFIG_PCI */ #ifdef CONFIG_SBUS @@ -995,7 +1072,7 @@ static unsigned int sbus_of_build_irq(struct device_node *dp, return build_irq(sbus_level, iclr, imap); } -static void sbus_irq_trans_init(struct device_node *dp) +static void __init sbus_irq_trans_init(struct device_node *dp) { const struct linux_prom64_registers *regs; @@ -1042,7 +1119,7 @@ static unsigned int central_build_irq(struct device_node *dp, return build_irq(0, iclr, imap); } -static void central_irq_trans_init(struct device_node *dp) +static void __init central_irq_trans_init(struct device_node *dp) { dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller)); dp->irq_trans->irq_build = central_build_irq; @@ -1056,7 +1133,7 @@ struct irq_trans { }; #ifdef CONFIG_PCI -static struct irq_trans pci_irq_trans_table[] = { +static struct irq_trans __initdata pci_irq_trans_table[] = { { "SUNW,sabre", sabre_irq_trans_init }, { "pci108e,a000", sabre_irq_trans_init }, { "pci108e,a001", sabre_irq_trans_init }, @@ -1069,6 +1146,7 @@ static struct irq_trans pci_irq_trans_table[] = { { "SUNW,tomatillo", tomatillo_irq_trans_init }, { "pci108e,a801", tomatillo_irq_trans_init }, { "SUNW,sun4v-pci", pci_sun4v_irq_trans_init }, + { "pciex108e,80f0", fire_irq_trans_init }, }; #endif @@ -1081,7 +1159,7 @@ static unsigned int sun4v_vdev_irq_build(struct device_node *dp, return sun4v_build_irq(devhandle, devino); } -static void sun4v_vdev_irq_trans_init(struct device_node *dp) +static void __init sun4v_vdev_irq_trans_init(struct device_node *dp) { const struct linux_prom64_registers *regs; @@ -1093,7 +1171,7 @@ static void sun4v_vdev_irq_trans_init(struct device_node *dp) ((regs->phys_addr >> 32UL) & 0x0fffffff); } -static void irq_trans_init(struct device_node *dp) +static void __init irq_trans_init(struct device_node *dp) { #ifdef CONFIG_PCI const char *model; diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index d4f0a70..1fac215 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -1343,11 +1343,11 @@ void __init setup_per_cpu_areas(void) /* Copy section for each CPU (we discard the original) */ goal = PERCPU_ENOUGH_ROOM; - __per_cpu_shift = 0; - for (size = 1UL; size < goal; size <<= 1UL) + __per_cpu_shift = PAGE_SHIFT; + for (size = PAGE_SIZE; size < goal; size <<= 1UL) __per_cpu_shift++; - ptr = alloc_bootmem(size * NR_CPUS); + ptr = alloc_bootmem_pages(size * NR_CPUS); __per_cpu_base = ptr - __per_cpu_start; diff --git a/arch/sparc64/mm/hugetlbpage.c b/arch/sparc64/mm/hugetlbpage.c index 00677b5..e224a94 100644 --- a/arch/sparc64/mm/hugetlbpage.c +++ b/arch/sparc64/mm/hugetlbpage.c @@ -175,6 +175,12 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, if (len > task_size) return -ENOMEM; + if (flags & MAP_FIXED) { + if (prepare_hugepage_range(addr, len, pgoff)) + return -EINVAL; + return addr; + } + if (addr) { addr = ALIGN(addr, HPAGE_SIZE); vma = find_vma(mm, addr); diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index cafadcb..d7004ea 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -164,30 +164,6 @@ unsigned long sparc64_kern_sec_context __read_mostly; int bigkernel = 0; -struct kmem_cache *pgtable_cache __read_mostly; - -static void zero_ctor(void *addr, struct kmem_cache *cache, unsigned long flags) -{ - clear_page(addr); -} - -extern void tsb_cache_init(void); - -void pgtable_cache_init(void) -{ - pgtable_cache = kmem_cache_create("pgtable_cache", - PAGE_SIZE, PAGE_SIZE, - SLAB_HWCACHE_ALIGN | - SLAB_MUST_HWCACHE_ALIGN, - zero_ctor, - NULL); - if (!pgtable_cache) { - prom_printf("Could not create pgtable_cache\n"); - prom_halt(); - } - tsb_cache_init(); -} - #ifdef CONFIG_DEBUG_DCFLUSH atomic_t dcpage_flushes = ATOMIC_INIT(0); #ifdef CONFIG_SMP diff --git a/arch/sparc64/mm/tsb.c b/arch/sparc64/mm/tsb.c index 236d02f..8eb8a7c 100644 --- a/arch/sparc64/mm/tsb.c +++ b/arch/sparc64/mm/tsb.c @@ -252,7 +252,7 @@ static const char *tsb_cache_names[8] = { "tsb_1MB", }; -void __init tsb_cache_init(void) +void __init pgtable_cache_init(void) { unsigned long i; @@ -262,8 +262,7 @@ void __init tsb_cache_init(void) tsb_caches[i] = kmem_cache_create(name, size, size, - SLAB_HWCACHE_ALIGN | - SLAB_MUST_HWCACHE_ALIGN, + 0, NULL, NULL); if (!tsb_caches[i]) { prom_printf("Could not create %s cache\n", name); diff --git a/arch/sparc64/solaris/ioctl.c b/arch/sparc64/solaris/ioctl.c index 330743c..18352a4 100644 --- a/arch/sparc64/solaris/ioctl.c +++ b/arch/sparc64/solaris/ioctl.c @@ -686,7 +686,8 @@ static inline int solaris_i(unsigned int fd, unsigned int cmd, u32 arg) int i = 0; read_lock_bh(&dev_base_lock); - for (d = dev_base; d; d = d->next) i++; + for_each_netdev(d) + i++; read_unlock_bh(&dev_base_lock); if (put_user (i, (int __user *)A(arg))) diff --git a/arch/um/defconfig b/arch/um/defconfig index 780cc0a..f938fa8 100644 --- a/arch/um/defconfig +++ b/arch/um/defconfig @@ -41,6 +41,7 @@ CONFIG_M686=y # CONFIG_MGEODE_LX is not set # CONFIG_MCYRIXIII is not set # CONFIG_MVIAC3_2 is not set +# CONFIG_MVIAC7 is not set # CONFIG_X86_GENERIC is not set CONFIG_X86_CMPXCHG=y CONFIG_X86_XADD=y diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c index 9fdfad6..3aa3516 100644 --- a/arch/um/drivers/chan_kern.c +++ b/arch/um/drivers/chan_kern.c @@ -12,7 +12,6 @@ #include <linux/tty_flip.h> #include <asm/irq.h> #include "chan_kern.h" -#include "user_util.h" #include "kern.h" #include "irq_user.h" #include "sigio.h" diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c index 0cad354..13f0bf8 100644 --- a/arch/um/drivers/chan_user.c +++ b/arch/um/drivers/chan_user.c @@ -14,7 +14,6 @@ #include <sys/ioctl.h> #include <sys/socket.h> #include "kern_util.h" -#include "user_util.h" #include "chan_user.h" #include "user.h" #include "os.h" @@ -158,7 +157,7 @@ static int winch_tramp(int fd, struct tty_struct *tty, int *fd_out) */ err = run_helper_thread(winch_thread, &data, CLONE_FILES, &stack, 0); if(err < 0){ - printk("fork of winch_thread failed - errno = %d\n", errno); + printk("fork of winch_thread failed - errno = %d\n", -err); goto out_close; } @@ -204,14 +203,3 @@ void register_winch(int fd, struct tty_struct *tty) } } } - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/drivers/cow_sys.h b/arch/um/drivers/cow_sys.h index c6a3084..1545384 100644 --- a/arch/um/drivers/cow_sys.h +++ b/arch/um/drivers/cow_sys.h @@ -2,14 +2,13 @@ #define __COW_SYS_H__ #include "kern_util.h" -#include "user_util.h" #include "os.h" #include "user.h" #include "um_malloc.h" static inline void *cow_malloc(int size) { - return(um_kmalloc(size)); + return um_kmalloc(size); } static inline void cow_free(void *ptr) @@ -21,29 +20,22 @@ static inline void cow_free(void *ptr) static inline char *cow_strdup(char *str) { - return(uml_strdup(str)); + return uml_strdup(str); } static inline int cow_seek_file(int fd, __u64 offset) { - return(os_seek_file(fd, offset)); + return os_seek_file(fd, offset); } static inline int cow_file_size(char *file, unsigned long long *size_out) { - return(os_file_size(file, size_out)); + return os_file_size(file, size_out); } static inline int cow_write_file(int fd, void *buf, int size) { - return(os_write_file(fd, buf, size)); + return os_write_file(fd, buf, size); } #endif - -/* - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/drivers/daemon_user.c b/arch/um/drivers/daemon_user.c index 021b82c..b869e38 100644 --- a/arch/um/drivers/daemon_user.c +++ b/arch/um/drivers/daemon_user.c @@ -14,7 +14,6 @@ #include "net_user.h" #include "daemon.h" #include "kern_util.h" -#include "user_util.h" #include "user.h" #include "os.h" #include "um_malloc.h" @@ -39,11 +38,11 @@ static struct sockaddr_un *new_addr(void *name, int len) sun = um_kmalloc(sizeof(struct sockaddr_un)); if(sun == NULL){ printk("new_addr: allocation of sockaddr_un failed\n"); - return(NULL); + return NULL; } sun->sun_family = AF_UNIX; memcpy(sun->sun_path, name, len); - return(sun); + return sun; } static int connect_to_switch(struct daemon_data *pri) @@ -112,7 +111,7 @@ static int connect_to_switch(struct daemon_data *pri) } pri->data_addr = sun; - return(fd); + return fd; out_free: kfree(sun); @@ -120,10 +119,10 @@ static int connect_to_switch(struct daemon_data *pri) os_close_file(fd); out: os_close_file(pri->control); - return(err); + return err; } -static void daemon_user_init(void *data, void *dev) +static int daemon_user_init(void *data, void *dev) { struct daemon_data *pri = data; struct timeval tv; @@ -146,13 +145,16 @@ static void daemon_user_init(void *data, void *dev) if(pri->fd < 0){ kfree(pri->local_addr); pri->local_addr = NULL; + return pri->fd; } + + return 0; } static int daemon_open(void *data) { struct daemon_data *pri = data; - return(pri->fd); + return pri->fd; } static void daemon_remove(void *data) @@ -176,12 +178,12 @@ int daemon_user_write(int fd, void *buf, int len, struct daemon_data *pri) { struct sockaddr_un *data_addr = pri->data_addr; - return(net_sendto(fd, buf, len, data_addr, sizeof(*data_addr))); + return net_sendto(fd, buf, len, data_addr, sizeof(*data_addr)); } static int daemon_set_mtu(int mtu, void *data) { - return(mtu); + return mtu; } const struct net_user_info daemon_user_info = { @@ -194,14 +196,3 @@ const struct net_user_info daemon_user_info = { .delete_address = NULL, .max_packet = MAX_PACKET - ETH_HEADER_OTHER }; - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/drivers/fd.c b/arch/um/drivers/fd.c index 218aa0e..7f083ec 100644 --- a/arch/um/drivers/fd.c +++ b/arch/um/drivers/fd.c @@ -9,7 +9,6 @@ #include <termios.h> #include <errno.h> #include "user.h" -#include "user_util.h" #include "chan_user.h" #include "os.h" #include "um_malloc.h" diff --git a/arch/um/drivers/harddog_user.c b/arch/um/drivers/harddog_user.c index c495ecf..5eeecf89 100644 --- a/arch/um/drivers/harddog_user.c +++ b/arch/um/drivers/harddog_user.c @@ -6,7 +6,6 @@ #include <stdio.h> #include <unistd.h> #include <errno.h> -#include "user_util.h" #include "user.h" #include "mconsole.h" #include "os.h" diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index f75d7b0..ced9910 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c @@ -13,7 +13,6 @@ #include "irq_user.h" #include "line.h" #include "kern.h" -#include "user_util.h" #include "kern_util.h" #include "os.h" #include "irq_kern.h" diff --git a/arch/um/drivers/mcast_user.c b/arch/um/drivers/mcast_user.c index b827e82..d319db1 100644 --- a/arch/um/drivers/mcast_user.c +++ b/arch/um/drivers/mcast_user.c @@ -20,7 +20,6 @@ #include "net_user.h" #include "mcast.h" #include "kern_util.h" -#include "user_util.h" #include "user.h" #include "os.h" #include "um_malloc.h" @@ -34,20 +33,21 @@ static struct sockaddr_in *new_addr(char *addr, unsigned short port) sin = um_kmalloc(sizeof(struct sockaddr_in)); if(sin == NULL){ printk("new_addr: allocation of sockaddr_in failed\n"); - return(NULL); + return NULL; } sin->sin_family = AF_INET; sin->sin_addr.s_addr = in_aton(addr); sin->sin_port = htons(port); - return(sin); + return sin; } -static void mcast_user_init(void *data, void *dev) +static int mcast_user_init(void *data, void *dev) { struct mcast_data *pri = data; pri->mcast_addr = new_addr(pri->addr, pri->port); pri->dev = dev; + return 0; } static void mcast_remove(void *data) @@ -107,8 +107,8 @@ static int mcast_open(void *data) err = -errno; printk("mcast_open : data bind failed, errno = %d\n", errno); goto out_close; - } - + } + /* subscribe to the multicast group */ mreq.imr_multiaddr.s_addr = sin->sin_addr.s_addr; mreq.imr_interface.s_addr = 0; @@ -153,12 +153,12 @@ int mcast_user_write(int fd, void *buf, int len, struct mcast_data *pri) { struct sockaddr_in *data_addr = pri->mcast_addr; - return(net_sendto(fd, buf, len, data_addr, sizeof(*data_addr))); + return net_sendto(fd, buf, len, data_addr, sizeof(*data_addr)); } static int mcast_set_mtu(int mtu, void *data) { - return(mtu); + return mtu; } const struct net_user_info mcast_user_info = { diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index 65ad293..542c9ef 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c @@ -25,7 +25,6 @@ #include "linux/console.h" #include "asm/irq.h" #include "asm/uaccess.h" -#include "user_util.h" #include "kern_util.h" #include "kern.h" #include "mconsole.h" diff --git a/arch/um/drivers/mconsole_user.c b/arch/um/drivers/mconsole_user.c index f02634f..62e5ad6 100644 --- a/arch/um/drivers/mconsole_user.c +++ b/arch/um/drivers/mconsole_user.c @@ -17,7 +17,6 @@ #include "sysdep/ptrace.h" #include "mconsole.h" #include "os.h" -#include "user_util.h" static struct mconsole_command commands[] = { /* With uts namespaces, uts information becomes process-specific, so diff --git a/arch/um/drivers/mmapper_kern.c b/arch/um/drivers/mmapper_kern.c index df3516e..e41a08f0 100644 --- a/arch/um/drivers/mmapper_kern.c +++ b/arch/um/drivers/mmapper_kern.c @@ -15,7 +15,6 @@ #include <linux/miscdevice.h> #include <asm/uaccess.h> #include "mem_user.h" -#include "user_util.h" /* These are set in mmapper_init, which is called at boot time */ static unsigned long mmapper_size; diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c index 8593037..baac4ad 100644 --- a/arch/um/drivers/net_kern.c +++ b/arch/um/drivers/net_kern.c @@ -21,7 +21,6 @@ #include "linux/ethtool.h" #include "linux/platform_device.h" #include "asm/uaccess.h" -#include "user_util.h" #include "kern_util.h" #include "net_kern.h" #include "net_user.h" @@ -284,7 +283,7 @@ void uml_net_user_timer_expire(unsigned long _conn) #endif } -static void setup_etheraddr(char *str, unsigned char *addr) +static void setup_etheraddr(char *str, unsigned char *addr, char *name) { char *end; int i; @@ -303,15 +302,32 @@ static void setup_etheraddr(char *str, unsigned char *addr) } str = end + 1; } - if(addr[0] & 1){ + if (is_multicast_ether_addr(addr)) { printk(KERN_ERR - "Attempt to assign a broadcast ethernet address to a " + "Attempt to assign a multicast ethernet address to a " "device disallowed\n"); goto random; } + if (!is_valid_ether_addr(addr)) { + printk(KERN_ERR + "Attempt to assign an invalid ethernet address to a " + "device disallowed\n"); + goto random; + } + if (!is_local_ether_addr(addr)) { + printk(KERN_WARNING + "Warning: attempt to assign a globally valid ethernet address to a " + "device\n"); + printk(KERN_WARNING "You should better enable the 2nd rightmost bit " + "in the first byte of the MAC, i.e. " + "%02x:%02x:%02x:%02x:%02x:%02x\n", + addr[0] | 0x02, addr[1], addr[2], addr[3], addr[4], addr[5]); + } return; random: + printk(KERN_INFO + "Choosing a random ethernet address for device %s\n", name); random_ether_addr(addr); } @@ -325,31 +341,53 @@ static struct platform_driver uml_net_driver = { }; static int driver_registered; -static int eth_configure(int n, void *init, char *mac, - struct transport *transport) +static void net_device_release(struct device *dev) +{ + struct uml_net *device = dev->driver_data; + struct net_device *netdev = device->dev; + struct uml_net_private *lp = netdev->priv; + + if(lp->remove != NULL) + (*lp->remove)(&lp->user); + list_del(&device->list); + kfree(device); + free_netdev(netdev); +} + +static void eth_configure(int n, void *init, char *mac, + struct transport *transport) { struct uml_net *device; struct net_device *dev; struct uml_net_private *lp; - int save, err, size; + int err, size; - size = transport->private_size + sizeof(struct uml_net_private) + - sizeof(((struct uml_net_private *) 0)->user); + size = transport->private_size + sizeof(struct uml_net_private); device = kzalloc(sizeof(*device), GFP_KERNEL); if (device == NULL) { - printk(KERN_ERR "eth_configure failed to allocate uml_net\n"); - return(1); + printk(KERN_ERR "eth_configure failed to allocate struct " + "uml_net\n"); + return; + } + + dev = alloc_etherdev(size); + if (dev == NULL) { + printk(KERN_ERR "eth_configure: failed to allocate struct " + "net_device for eth%d\n", n); + goto out_free_device; } INIT_LIST_HEAD(&device->list); device->index = n; - spin_lock(&devices_lock); - list_add(&device->list, &devices); - spin_unlock(&devices_lock); + /* If this name ends up conflicting with an existing registered + * netdevice, that is OK, register_netdev{,ice}() will notice this + * and fail. + */ + snprintf(dev->name, sizeof(dev->name), "eth%d", n); - setup_etheraddr(mac, device->mac); + setup_etheraddr(mac, device->mac, dev->name); printk(KERN_INFO "Netdevice %d ", n); printk("(%02x:%02x:%02x:%02x:%02x:%02x) ", @@ -357,11 +395,6 @@ static int eth_configure(int n, void *init, char *mac, device->mac[2], device->mac[3], device->mac[4], device->mac[5]); printk(": "); - dev = alloc_etherdev(size); - if (dev == NULL) { - printk(KERN_ERR "eth_configure: failed to allocate device\n"); - return 1; - } lp = dev->priv; /* This points to the transport private data. It's still clear, but we @@ -376,47 +409,20 @@ static int eth_configure(int n, void *init, char *mac, } device->pdev.id = n; device->pdev.name = DRIVER_NAME; - platform_device_register(&device->pdev); + device->pdev.dev.release = net_device_release; + device->pdev.dev.driver_data = device; + if(platform_device_register(&device->pdev)) + goto out_free_netdev; SET_NETDEV_DEV(dev,&device->pdev.dev); - /* If this name ends up conflicting with an existing registered - * netdevice, that is OK, register_netdev{,ice}() will notice this - * and fail. - */ - snprintf(dev->name, sizeof(dev->name), "eth%d", n); device->dev = dev; + /* + * These just fill in a data structure, so there's no failure + * to be worried about. + */ (*transport->kern->init)(dev, init); - dev->mtu = transport->user->max_packet; - dev->open = uml_net_open; - dev->hard_start_xmit = uml_net_start_xmit; - dev->stop = uml_net_close; - dev->get_stats = uml_net_get_stats; - dev->set_multicast_list = uml_net_set_multicast_list; - dev->tx_timeout = uml_net_tx_timeout; - dev->set_mac_address = uml_net_set_mac; - dev->change_mtu = uml_net_change_mtu; - dev->ethtool_ops = ¨_net_ethtool_ops; - dev->watchdog_timeo = (HZ >> 1); - dev->irq = UM_ETH_IRQ; - - rtnl_lock(); - err = register_netdevice(dev); - rtnl_unlock(); - if (err) { - device->dev = NULL; - /* XXX: should we call ->remove() here? */ - free_netdev(dev); - return 1; - } - - /* lp.user is the first four bytes of the transport data, which - * has already been initialized. This structure assignment will - * overwrite that, so we make sure that .user gets overwritten with - * what it already has. - */ - save = lp->user[0]; *lp = ((struct uml_net_private) { .list = LIST_HEAD_INIT(lp->list), .dev = dev, @@ -430,20 +436,52 @@ static int eth_configure(int n, void *init, char *mac, .write = transport->kern->write, .add_address = transport->user->add_address, .delete_address = transport->user->delete_address, - .set_mtu = transport->user->set_mtu, - .user = { save } }); + .set_mtu = transport->user->set_mtu }); init_timer(&lp->tl); spin_lock_init(&lp->lock); lp->tl.function = uml_net_user_timer_expire; memcpy(lp->mac, device->mac, sizeof(lp->mac)); - if (transport->user->init) - (*transport->user->init)(&lp->user, dev); + if ((transport->user->init != NULL) && + ((*transport->user->init)(&lp->user, dev) != 0)) + goto out_unregister; set_ether_mac(dev, device->mac); + dev->mtu = transport->user->max_packet; + dev->open = uml_net_open; + dev->hard_start_xmit = uml_net_start_xmit; + dev->stop = uml_net_close; + dev->get_stats = uml_net_get_stats; + dev->set_multicast_list = uml_net_set_multicast_list; + dev->tx_timeout = uml_net_tx_timeout; + dev->set_mac_address = uml_net_set_mac; + dev->change_mtu = uml_net_change_mtu; + dev->ethtool_ops = ¨_net_ethtool_ops; + dev->watchdog_timeo = (HZ >> 1); + dev->irq = UM_ETH_IRQ; - return 0; + rtnl_lock(); + err = register_netdevice(dev); + rtnl_unlock(); + if (err) + goto out_undo_user_init; + + spin_lock(&devices_lock); + list_add(&device->list, &devices); + spin_unlock(&devices_lock); + + return; + +out_undo_user_init: + if (transport->user->remove != NULL) + (*transport->user->remove)(&lp->user); +out_unregister: + platform_device_unregister(&device->pdev); +out_free_netdev: + free_netdev(dev); +out_free_device: + kfree(device); } static struct uml_net *find_device(int n) @@ -666,13 +704,9 @@ static int net_remove(int n, char **error_out) lp = dev->priv; if(lp->fd > 0) return -EBUSY; - if(lp->remove != NULL) (*lp->remove)(&lp->user); unregister_netdev(dev); platform_device_unregister(&device->pdev); - list_del(&device->list); - kfree(device); - free_netdev(dev); return 0; } diff --git a/arch/um/drivers/net_user.c b/arch/um/drivers/net_user.c index 0ffd7ac..3503cff 100644 --- a/arch/um/drivers/net_user.c +++ b/arch/um/drivers/net_user.c @@ -14,11 +14,11 @@ #include <sys/wait.h> #include <sys/time.h> #include "user.h" -#include "user_util.h" #include "kern_util.h" #include "net_user.h" #include "os.h" #include "um_malloc.h" +#include "kern_constants.h" int tap_open_common(void *dev, char *gate_addr) { @@ -216,7 +216,7 @@ static void change(char *dev, char *what, unsigned char *addr, sprintf(netmask_buf, "%d.%d.%d.%d", netmask[0], netmask[1], netmask[2], netmask[3]); - output_len = page_size(); + output_len = UM_KERN_PAGE_SIZE; output = um_kmalloc(output_len); if(output == NULL) printk("change : failed to allocate output buffer\n"); diff --git a/arch/um/drivers/pcap_user.c b/arch/um/drivers/pcap_user.c index 11921a7..dc0a903 100644 --- a/arch/um/drivers/pcap_user.c +++ b/arch/um/drivers/pcap_user.c @@ -18,7 +18,7 @@ #define PCAP_FD(p) (*(int *)(p)) -static void pcap_user_init(void *data, void *dev) +static int pcap_user_init(void *data, void *dev) { struct pcap_data *pri = data; pcap_t *p; @@ -28,11 +28,12 @@ static void pcap_user_init(void *data, void *dev) if(p == NULL){ printk("pcap_user_init : pcap_open_live failed - '%s'\n", errors); - return; + return -EINVAL; } pri->dev = dev; pri->pcap = p; + return 0; } static int pcap_open(void *data) @@ -42,39 +43,39 @@ static int pcap_open(void *data) int err; if(pri->pcap == NULL) - return(-ENODEV); + return -ENODEV; if(pri->filter != NULL){ err = dev_netmask(pri->dev, &netmask); if(err < 0){ printk("pcap_open : dev_netmask failed\n"); - return(-EIO); + return -EIO; } pri->compiled = um_kmalloc(sizeof(struct bpf_program)); if(pri->compiled == NULL){ printk("pcap_open : kmalloc failed\n"); - return(-ENOMEM); + return -ENOMEM; } - + err = pcap_compile(pri->pcap, (struct bpf_program *) pri->compiled, pri->filter, pri->optimize, netmask); if(err < 0){ printk("pcap_open : pcap_compile failed - '%s'\n", pcap_geterr(pri->pcap)); - return(-EIO); + return -EIO; } err = pcap_setfilter(pri->pcap, pri->compiled); if(err < 0){ printk("pcap_open : pcap_setfilter failed - '%s'\n", pcap_geterr(pri->pcap)); - return(-EIO); + return -EIO; } } - - return(PCAP_FD(pri->pcap)); + + return PCAP_FD(pri->pcap); } static void pcap_remove(void *data) @@ -114,11 +115,11 @@ int pcap_user_read(int fd, void *buffer, int len, struct pcap_data *pri) n = pcap_dispatch(pri->pcap, 1, handler, (u_char *) &hdata); if(n < 0){ printk("pcap_dispatch failed - %s\n", pcap_geterr(pri->pcap)); - return(-EIO); + return -EIO; } else if(n == 0) - return(0); - return(hdata.len); + return 0; + return hdata.len; } const struct net_user_info pcap_user_info = { @@ -131,14 +132,3 @@ const struct net_user_info pcap_user_info = { .delete_address = NULL, .max_packet = MAX_PACKET - ETH_HEADER_OTHER }; - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/drivers/port_user.c b/arch/um/drivers/port_user.c index 8050802..3f6357d 100644 --- a/arch/um/drivers/port_user.c +++ b/arch/um/drivers/port_user.c @@ -13,7 +13,6 @@ #include <sys/socket.h> #include <sys/un.h> #include <netinet/in.h> -#include "user_util.h" #include "kern_util.h" #include "user.h" #include "chan_user.h" diff --git a/arch/um/drivers/pty.c b/arch/um/drivers/pty.c index 829a5ec..df4976c 100644 --- a/arch/um/drivers/pty.c +++ b/arch/um/drivers/pty.c @@ -4,13 +4,13 @@ */ #include <stdio.h> +#include <stdlib.h> #include <unistd.h> #include <string.h> #include <errno.h> #include <termios.h> #include "chan_user.h" #include "user.h" -#include "user_util.h" #include "kern_util.h" #include "os.h" #include "um_malloc.h" diff --git a/arch/um/drivers/slip_user.c b/arch/um/drivers/slip_user.c index 7eddacc..78f0e51 100644 --- a/arch/um/drivers/slip_user.c +++ b/arch/um/drivers/slip_user.c @@ -8,7 +8,6 @@ #include <sys/termios.h> #include <sys/wait.h> #include <sys/signal.h> -#include "user_util.h" #include "kern_util.h" #include "user.h" #include "net_user.h" @@ -16,12 +15,14 @@ #include "slip_common.h" #include "os.h" #include "um_malloc.h" +#include "kern_constants.h" -void slip_user_init(void *data, void *dev) +static int slip_user_init(void *data, void *dev) { struct slip_data *pri = data; pri->dev = dev; + return 0; } static int set_up_tty(int fd) @@ -89,7 +90,7 @@ static int slip_tramp(char **argv, int fd) goto out_close; pid = err; - output_len = page_size(); + output_len = UM_KERN_PAGE_SIZE; output = um_kmalloc(output_len); if(output == NULL){ printk("slip_tramp : failed to allocate output buffer\n"); diff --git a/arch/um/drivers/slirp_user.c b/arch/um/drivers/slirp_user.c index ce5e85d..39f889f 100644 --- a/arch/um/drivers/slirp_user.c +++ b/arch/um/drivers/slirp_user.c @@ -7,7 +7,6 @@ #include <errno.h> #include <sys/wait.h> #include <sys/signal.h> -#include "user_util.h" #include "kern_util.h" #include "user.h" #include "net_user.h" @@ -15,11 +14,12 @@ #include "slip_common.h" #include "os.h" -void slirp_user_init(void *data, void *dev) +static int slirp_user_init(void *data, void *dev) { struct slirp_data *pri = data; pri->dev = dev; + return 0; } struct slirp_pre_exec_data { diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c index 4b382a6..fd09ad9 100644 --- a/arch/um/drivers/ssl.c +++ b/arch/um/drivers/ssl.c @@ -15,7 +15,6 @@ #include "line.h" #include "ssl.h" #include "chan_kern.h" -#include "user_util.h" #include "kern_util.h" #include "kern.h" #include "init.h" @@ -192,12 +191,12 @@ static int ssl_init(void) ssl_driver = register_lines(&driver, &ssl_ops, serial_lines, ARRAY_SIZE(serial_lines)); - lines_init(serial_lines, ARRAY_SIZE(serial_lines), &opts); - new_title = add_xterm_umid(opts.xterm_title); if (new_title != NULL) opts.xterm_title = new_title; + lines_init(serial_lines, ARRAY_SIZE(serial_lines), &opts); + ssl_init_done = 1; register_console(&ssl_cons); return 0; diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c index 76d1f1c..2bb4193 100644 --- a/arch/um/drivers/stdio_console.c +++ b/arch/um/drivers/stdio_console.c @@ -22,7 +22,6 @@ #include "stdio_console.h" #include "line.h" #include "chan_kern.h" -#include "user_util.h" #include "kern_util.h" #include "irq_user.h" #include "mconsole_kern.h" @@ -167,12 +166,12 @@ int stdio_init(void) return -1; printk(KERN_INFO "Initialized stdio console driver\n"); - lines_init(vts, ARRAY_SIZE(vts), &opts); - new_title = add_xterm_umid(opts.xterm_title); if(new_title != NULL) opts.xterm_title = new_title; + lines_init(vts, ARRAY_SIZE(vts), &opts); + con_init_done = 1; register_console(&stdiocons); return 0; diff --git a/arch/um/drivers/tty.c b/arch/um/drivers/tty.c index d95d643..c07d0d5 100644 --- a/arch/um/drivers/tty.c +++ b/arch/um/drivers/tty.c @@ -8,7 +8,6 @@ #include <errno.h> #include <unistd.h> #include "chan_user.h" -#include "user_util.h" #include "user.h" #include "os.h" #include "um_malloc.h" diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 8bd9204..70509dd 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -39,7 +39,6 @@ #include "asm/irq.h" #include "asm/types.h" #include "asm/tlbflush.h" -#include "user_util.h" #include "mem_user.h" #include "kern_util.h" #include "kern.h" @@ -90,7 +89,7 @@ static inline int ubd_test_bit(__u64 bit, unsigned char *data) bits = sizeof(data[0]) * 8; n = bit / bits; off = bit % bits; - return((data[n] & (1 << off)) != 0); + return (data[n] & (1 << off)) != 0; } static inline void ubd_set_bit(__u64 bit, unsigned char *data) @@ -147,10 +146,13 @@ struct cow { unsigned long *bitmap; unsigned long bitmap_len; int bitmap_offset; - int data_offset; + int data_offset; }; +#define MAX_SG 64 + struct ubd { + struct list_head restart; /* name (and fd, below) of the file opened for writing, either the * backing or the cow file. */ char *file; @@ -165,15 +167,17 @@ struct ubd { struct platform_device pdev; struct request_queue *queue; spinlock_t lock; - int active; + struct scatterlist sg[MAX_SG]; + struct request *request; + int start_sg, end_sg; }; #define DEFAULT_COW { \ .file = NULL, \ - .fd = -1, \ - .bitmap = NULL, \ + .fd = -1, \ + .bitmap = NULL, \ .bitmap_offset = 0, \ - .data_offset = 0, \ + .data_offset = 0, \ } #define DEFAULT_UBD { \ @@ -183,11 +187,13 @@ struct ubd { .size = -1, \ .boot_openflags = OPEN_FLAGS, \ .openflags = OPEN_FLAGS, \ - .no_cow = 0, \ + .no_cow = 0, \ .shared = 0, \ - .cow = DEFAULT_COW, \ + .cow = DEFAULT_COW, \ .lock = SPIN_LOCK_UNLOCKED, \ - .active = 0, \ + .request = NULL, \ + .start_sg = 0, \ + .end_sg = 0, \ } /* Protected by ubd_lock */ @@ -243,7 +249,7 @@ static void make_ide_entries(char *dev_name) static int fake_ide_setup(char *str) { fake_ide = 1; - return(1); + return 1; } __setup("fake_ide", fake_ide_setup); @@ -261,7 +267,7 @@ static int parse_unit(char **ptr) if(isdigit(*str)) { n = simple_strtoul(str, &end, 0); if(end == str) - return(-1); + return -1; *ptr = end; } else if (('a' <= *str) && (*str <= 'z')) { @@ -269,7 +275,7 @@ static int parse_unit(char **ptr) str++; *ptr = str; } - return(n); + return n; } /* If *index_out == -1 at exit, the passed option was a general one; @@ -436,7 +442,7 @@ static int udb_setup(char *str) { printk("udb%s specified on command line is almost certainly a ubd -> " "udb TYPO\n", str); - return(1); + return 1; } __setup("udb", udb_setup); @@ -467,66 +473,75 @@ static void do_ubd_request(request_queue_t * q); /* Only changed by ubd_init, which is an initcall. */ int thread_fd = -1; -/* call ubd_finish if you need to serialize */ -static void __ubd_finish(struct request *req, int error) +static void ubd_end_request(struct request *req, int bytes, int uptodate) { - int nsect; - - if(error){ - end_request(req, 0); - return; + if (!end_that_request_first(req, uptodate, bytes >> 9)) { + struct ubd *dev = req->rq_disk->private_data; + unsigned long flags; + + add_disk_randomness(req->rq_disk); + spin_lock_irqsave(&dev->lock, flags); + end_that_request_last(req, uptodate); + spin_unlock_irqrestore(&dev->lock, flags); } - nsect = req->current_nr_sectors; - req->sector += nsect; - req->buffer += nsect << 9; - req->errors = 0; - req->nr_sectors -= nsect; - req->current_nr_sectors = 0; - end_request(req, 1); } /* Callable only from interrupt context - otherwise you need to do * spin_lock_irq()/spin_lock_irqsave() */ -static inline void ubd_finish(struct request *req, int error) +static inline void ubd_finish(struct request *req, int bytes) { - struct ubd *dev = req->rq_disk->private_data; - - spin_lock(&dev->lock); - __ubd_finish(req, error); - spin_unlock(&dev->lock); + if(bytes < 0){ + ubd_end_request(req, 0, 0); + return; + } + ubd_end_request(req, bytes, 1); } +static LIST_HEAD(restart); + /* XXX - move this inside ubd_intr. */ /* Called without dev->lock held, and only in interrupt context. */ static void ubd_handler(void) { - struct io_thread_req req; + struct io_thread_req *req; struct request *rq; - struct ubd *dev; + struct ubd *ubd; + struct list_head *list, *next_ele; + unsigned long flags; int n; - n = os_read_file(thread_fd, &req, sizeof(req)); - if(n != sizeof(req)){ - printk(KERN_ERR "Pid %d - spurious interrupt in ubd_handler, " - "err = %d\n", os_getpid(), -n); - return; - } - - rq = req.req; - dev = rq->rq_disk->private_data; - dev->active = 0; + while(1){ + n = os_read_file(thread_fd, &req, + sizeof(struct io_thread_req *)); + if(n != sizeof(req)){ + if(n == -EAGAIN) + break; + printk(KERN_ERR "spurious interrupt in ubd_handler, " + "err = %d\n", -n); + return; + } - ubd_finish(rq, req.error); + rq = req->req; + rq->nr_sectors -= req->length >> 9; + if(rq->nr_sectors == 0) + ubd_finish(rq, rq->hard_nr_sectors << 9); + kfree(req); + } reactivate_fd(thread_fd, UBD_IRQ); - spin_lock(&dev->lock); - do_ubd_request(dev->queue); - spin_unlock(&dev->lock); + + list_for_each_safe(list, next_ele, &restart){ + ubd = container_of(list, struct ubd, restart); + list_del_init(&ubd->restart); + spin_lock_irqsave(&ubd->lock, flags); + do_ubd_request(ubd->queue); + spin_unlock_irqrestore(&ubd->lock, flags); + } } static irqreturn_t ubd_intr(int irq, void *dev) { ubd_handler(); - return(IRQ_HANDLED); + return IRQ_HANDLED; } /* Only changed by ubd_init, which is an initcall. */ @@ -545,7 +560,7 @@ static inline int ubd_file_size(struct ubd *ubd_dev, __u64 *size_out) char *file; file = ubd_dev->cow.file ? ubd_dev->cow.file : ubd_dev->file; - return(os_file_size(file, size_out)); + return os_file_size(file, size_out); } static void ubd_close_dev(struct ubd *ubd_dev) @@ -617,10 +632,18 @@ static int ubd_open_dev(struct ubd *ubd_dev) if(err < 0) goto error; ubd_dev->cow.fd = err; } - return(0); + return 0; error: os_close_file(ubd_dev->fd); - return(err); + return err; +} + +static void ubd_device_release(struct device *dev) +{ + struct ubd *ubd_dev = dev->driver_data; + + blk_cleanup_queue(ubd_dev->queue); + *ubd_dev = ((struct ubd) DEFAULT_UBD); } static int ubd_disk_register(int major, u64 size, int unit, @@ -630,7 +653,7 @@ static int ubd_disk_register(int major, u64 size, int unit, disk = alloc_disk(1 << UBD_SHIFT); if(disk == NULL) - return(-ENOMEM); + return -ENOMEM; disk->major = major; disk->first_minor = unit << UBD_SHIFT; @@ -645,6 +668,8 @@ static int ubd_disk_register(int major, u64 size, int unit, if (major == MAJOR_NR) { ubd_devs[unit].pdev.id = unit; ubd_devs[unit].pdev.name = DRIVER_NAME; + ubd_devs[unit].pdev.dev.release = ubd_device_release; + ubd_devs[unit].pdev.dev.driver_data = &ubd_devs[unit]; platform_device_register(&ubd_devs[unit].pdev); disk->driverfs_dev = &ubd_devs[unit].pdev.dev; } @@ -675,6 +700,8 @@ static int ubd_add(int n, char **error_out) ubd_dev->size = ROUND_BLOCK(ubd_dev->size); + INIT_LIST_HEAD(&ubd_dev->restart); + err = -ENOMEM; ubd_dev->queue = blk_init_queue(do_ubd_request, &ubd_dev->lock); if (ubd_dev->queue == NULL) { @@ -683,6 +710,7 @@ static int ubd_add(int n, char **error_out) } ubd_dev->queue->queuedata = ubd_dev; + blk_queue_max_hw_segments(ubd_dev->queue, MAX_SG); err = ubd_disk_register(MAJOR_NR, ubd_dev->size, n, &ubd_gendisk[n]); if(err){ *error_out = "Failed to register device"; @@ -730,14 +758,14 @@ static int ubd_config(char *str, char **error_out) goto err_free; } - mutex_lock(&ubd_lock); + mutex_lock(&ubd_lock); ret = ubd_add(n, error_out); if (ret) ubd_devs[n].file = NULL; - mutex_unlock(&ubd_lock); + mutex_unlock(&ubd_lock); out: - return ret; + return ret; err_free: kfree(str); @@ -752,7 +780,7 @@ static int ubd_get_config(char *name, char *str, int size, char **error_out) n = parse_unit(&name); if((n >= MAX_DEV) || (n < 0)){ *error_out = "ubd_get_config : device number out of range"; - return(-1); + return -1; } ubd_dev = &ubd_devs[n]; @@ -773,29 +801,27 @@ static int ubd_get_config(char *name, char *str, int size, char **error_out) out: mutex_unlock(&ubd_lock); - return(len); + return len; } static int ubd_id(char **str, int *start_out, int *end_out) { - int n; + int n; n = parse_unit(str); - *start_out = 0; - *end_out = MAX_DEV - 1; - return n; + *start_out = 0; + *end_out = MAX_DEV - 1; + return n; } static int ubd_remove(int n, char **error_out) { + struct gendisk *disk = ubd_gendisk[n]; struct ubd *ubd_dev; int err = -ENODEV; mutex_lock(&ubd_lock); - if(ubd_gendisk[n] == NULL) - goto out; - ubd_dev = &ubd_devs[n]; if(ubd_dev->file == NULL) @@ -806,9 +832,11 @@ static int ubd_remove(int n, char **error_out) if(ubd_dev->count > 0) goto out; - del_gendisk(ubd_gendisk[n]); - put_disk(ubd_gendisk[n]); ubd_gendisk[n] = NULL; + if(disk != NULL){ + del_gendisk(disk); + put_disk(disk); + } if(fake_gendisk[n] != NULL){ del_gendisk(fake_gendisk[n]); @@ -816,10 +844,8 @@ static int ubd_remove(int n, char **error_out) fake_gendisk[n] = NULL; } - blk_cleanup_queue(ubd_dev->queue); - platform_device_unregister(&ubd_dev->pdev); - *ubd_dev = ((struct ubd) DEFAULT_UBD); err = 0; + platform_device_unregister(&ubd_dev->pdev); out: mutex_unlock(&ubd_lock); return err; @@ -832,7 +858,7 @@ static struct mc_device ubd_mc = { .list = LIST_HEAD_INIT(ubd_mc.list), .name = "ubd", .config = ubd_config, - .get_config = ubd_get_config, + .get_config = ubd_get_config, .id = ubd_id, .remove = ubd_remove, }; @@ -854,7 +880,7 @@ static int __init ubd0_init(void) ubd_dev->file = "root_fs"; mutex_unlock(&ubd_lock); - return(0); + return 0; } __initcall(ubd0_init); @@ -882,14 +908,14 @@ static int __init ubd_init(void) return -1; } platform_driver_register(&ubd_driver); - mutex_lock(&ubd_lock); + mutex_lock(&ubd_lock); for (i = 0; i < MAX_DEV; i++){ err = ubd_add(i, &error); if(err) printk(KERN_ERR "Failed to initialize ubd device %d :" "%s\n", i, error); } - mutex_unlock(&ubd_lock); + mutex_unlock(&ubd_lock); return 0; } @@ -913,7 +939,7 @@ static int __init ubd_driver_init(void){ "ubd : Failed to start I/O thread (errno = %d) - " "falling back to synchronous I/O\n", -io_pid); io_pid = -1; - return(0); + return 0; } err = um_request_irq(UBD_IRQ, thread_fd, IRQ_READ, ubd_intr, IRQF_DISABLED, "ubd", ubd_devs); @@ -948,7 +974,7 @@ static int ubd_open(struct inode *inode, struct file *filp) err = -EROFS; }*/ out: - return(err); + return err; } static int ubd_release(struct inode * inode, struct file * file) @@ -958,7 +984,7 @@ static int ubd_release(struct inode * inode, struct file * file) if(--ubd_dev->count == 0) ubd_close_dev(ubd_dev); - return(0); + return 0; } static void cowify_bitmap(__u64 io_offset, int length, unsigned long *cow_mask, @@ -1014,7 +1040,7 @@ static void cowify_req(struct io_thread_req *req, unsigned long *bitmap, if(ubd_test_bit(sector + i, (unsigned char *) bitmap)) ubd_set_bit(i, (unsigned char *) &req->sector_mask); - } + } } else cowify_bitmap(req->offset, req->length, &req->sector_mask, &req->cow_offset, bitmap, bitmap_offset, @@ -1022,26 +1048,16 @@ static void cowify_req(struct io_thread_req *req, unsigned long *bitmap, } /* Called with dev->lock held */ -static int prepare_request(struct request *req, struct io_thread_req *io_req) +static void prepare_request(struct request *req, struct io_thread_req *io_req, + unsigned long long offset, int page_offset, + int len, struct page *page) { struct gendisk *disk = req->rq_disk; struct ubd *ubd_dev = disk->private_data; - __u64 offset; - int len; - - /* This should be impossible now */ - if((rq_data_dir(req) == WRITE) && !ubd_dev->openflags.w){ - printk("Write attempted on readonly ubd device %s\n", - disk->disk_name); - end_request(req, 0); - return(1); - } - - offset = ((__u64) req->sector) << 9; - len = req->current_nr_sectors << 9; io_req->req = req; - io_req->fds[0] = (ubd_dev->cow.file != NULL) ? ubd_dev->cow.fd : ubd_dev->fd; + io_req->fds[0] = (ubd_dev->cow.file != NULL) ? ubd_dev->cow.fd : + ubd_dev->fd; io_req->fds[1] = ubd_dev->fd; io_req->cow_offset = -1; io_req->offset = offset; @@ -1052,45 +1068,66 @@ static int prepare_request(struct request *req, struct io_thread_req *io_req) io_req->op = (rq_data_dir(req) == READ) ? UBD_READ : UBD_WRITE; io_req->offsets[0] = 0; io_req->offsets[1] = ubd_dev->cow.data_offset; - io_req->buffer = req->buffer; + io_req->buffer = page_address(page) + page_offset; io_req->sectorsize = 1 << 9; if(ubd_dev->cow.file != NULL) - cowify_req(io_req, ubd_dev->cow.bitmap, ubd_dev->cow.bitmap_offset, - ubd_dev->cow.bitmap_len); + cowify_req(io_req, ubd_dev->cow.bitmap, + ubd_dev->cow.bitmap_offset, ubd_dev->cow.bitmap_len); - return(0); } /* Called with dev->lock held */ static void do_ubd_request(request_queue_t *q) { - struct io_thread_req io_req; + struct io_thread_req *io_req; struct request *req; - int err, n; - - if(thread_fd == -1){ - while((req = elv_next_request(q)) != NULL){ - err = prepare_request(req, &io_req); - if(!err){ - do_io(&io_req); - __ubd_finish(req, io_req.error); - } - } - } - else { + int n; + + while(1){ struct ubd *dev = q->queuedata; - if(dev->active || (req = elv_next_request(q)) == NULL) - return; - err = prepare_request(req, &io_req); - if(!err){ - dev->active = 1; - n = os_write_file(thread_fd, (char *) &io_req, - sizeof(io_req)); - if(n != sizeof(io_req)) - printk("write to io thread failed, " - "errno = %d\n", -n); + if(dev->end_sg == 0){ + struct request *req = elv_next_request(q); + if(req == NULL) + return; + + dev->request = req; + blkdev_dequeue_request(req); + dev->start_sg = 0; + dev->end_sg = blk_rq_map_sg(q, req, dev->sg); } + + req = dev->request; + while(dev->start_sg < dev->end_sg){ + struct scatterlist *sg = &dev->sg[dev->start_sg]; + + io_req = kmalloc(sizeof(struct io_thread_req), + GFP_ATOMIC); + if(io_req == NULL){ + if(list_empty(&dev->restart)) + list_add(&dev->restart, &restart); + return; + } + prepare_request(req, io_req, + (unsigned long long) req->sector << 9, + sg->offset, sg->length, sg->page); + + n = os_write_file(thread_fd, &io_req, + sizeof(struct io_thread_req *)); + if(n != sizeof(struct io_thread_req *)){ + if(n != -EAGAIN) + printk("write to io thread failed, " + "errno = %d\n", -n); + else if(list_empty(&dev->restart)) + list_add(&dev->restart, &restart); + return; + } + + req->sector += sg->length >> 9; + dev->start_sg++; + } + dev->end_sg = 0; + dev->request = NULL; } } @@ -1120,21 +1157,21 @@ static int ubd_ioctl(struct inode * inode, struct file * file, ubd_id.cyls = ubd_dev->size / (128 * 32 * 512); if(copy_to_user((char __user *) arg, (char *) &ubd_id, sizeof(ubd_id))) - return(-EFAULT); - return(0); + return -EFAULT; + return 0; case CDROMVOLREAD: if(copy_from_user(&volume, (char __user *) arg, sizeof(volume))) - return(-EFAULT); + return -EFAULT; volume.channel0 = 255; volume.channel1 = 255; volume.channel2 = 255; volume.channel3 = 255; if(copy_to_user((char __user *) arg, &volume, sizeof(volume))) - return(-EFAULT); - return(0); + return -EFAULT; + return 0; } - return(-EINVAL); + return -EINVAL; } static int path_requires_switch(char *from_cmdline, char *from_cow, char *cow) @@ -1176,29 +1213,29 @@ static int backing_file_mismatch(char *file, __u64 size, time_t mtime) if(err < 0){ printk("Failed to get modification time of backing file " "\"%s\", err = %d\n", file, -err); - return(err); + return err; } err = os_file_size(file, &actual); if(err < 0){ printk("Failed to get size of backing file \"%s\", " "err = %d\n", file, -err); - return(err); + return err; } - if(actual != size){ + if(actual != size){ /*__u64 can be a long on AMD64 and with %lu GCC complains; so * the typecast.*/ printk("Size mismatch (%llu vs %llu) of COW header vs backing " "file\n", (unsigned long long) size, actual); - return(-EINVAL); + return -EINVAL; } if(modtime != mtime){ printk("mtime mismatch (%ld vs %ld) of COW header vs backing " "file\n", mtime, modtime); - return(-EINVAL); + return -EINVAL; } - return(0); + return 0; } int read_cow_bitmap(int fd, void *buf, int offset, int len) @@ -1207,13 +1244,13 @@ int read_cow_bitmap(int fd, void *buf, int offset, int len) err = os_seek_file(fd, offset); if(err < 0) - return(err); + return err; err = os_read_file(fd, buf, len); if(err < 0) - return(err); + return err; - return(0); + return 0; } int open_ubd_file(char *file, struct openflags *openflags, int shared, @@ -1231,14 +1268,14 @@ int open_ubd_file(char *file, struct openflags *openflags, int shared, if (fd < 0) { if ((fd == -ENOENT) && (create_cow_out != NULL)) *create_cow_out = 1; - if (!openflags->w || - ((fd != -EROFS) && (fd != -EACCES))) + if (!openflags->w || + ((fd != -EROFS) && (fd != -EACCES))) return fd; openflags->w = 0; fd = os_open_file(file, *openflags, mode); if (fd < 0) return fd; - } + } if(shared) printk("Not locking \"%s\" on the host\n", file); @@ -1252,7 +1289,7 @@ int open_ubd_file(char *file, struct openflags *openflags, int shared, /* Successful return case! */ if(backing_file_out == NULL) - return(fd); + return fd; err = read_cow_header(file_reader, &fd, &version, &backing_file, &mtime, &size, §orsize, &align, bitmap_offset_out); @@ -1262,7 +1299,7 @@ int open_ubd_file(char *file, struct openflags *openflags, int shared, goto out_close; } if(err) - return(fd); + return fd; asked_switch = path_requires_switch(*backing_file_out, backing_file, file); @@ -1285,7 +1322,7 @@ int open_ubd_file(char *file, struct openflags *openflags, int shared, cow_sizes(version, size, sectorsize, align, *bitmap_offset_out, bitmap_len_out, data_offset_out); - return fd; + return fd; out_close: os_close_file(fd); return err; @@ -1310,10 +1347,10 @@ int create_cow_file(char *cow_file, char *backing_file, struct openflags flags, bitmap_offset_out, bitmap_len_out, data_offset_out); if(!err) - return(fd); + return fd; os_close_file(fd); out: - return(err); + return err; } static int update_bitmap(struct io_thread_req *req) @@ -1321,23 +1358,23 @@ static int update_bitmap(struct io_thread_req *req) int n; if(req->cow_offset == -1) - return(0); + return 0; n = os_seek_file(req->fds[1], req->cow_offset); if(n < 0){ printk("do_io - bitmap lseek failed : err = %d\n", -n); - return(1); + return 1; } n = os_write_file(req->fds[1], &req->bitmap_words, - sizeof(req->bitmap_words)); + sizeof(req->bitmap_words)); if(n != sizeof(req->bitmap_words)){ printk("do_io - bitmap update failed, err = %d fd = %d\n", -n, req->fds[1]); - return(1); + return 1; } - return(0); + return 0; } void do_io(struct io_thread_req *req) @@ -1409,13 +1446,14 @@ static int io_count = 0; int io_thread(void *arg) { - struct io_thread_req req; + struct io_thread_req *req; int n; ignore_sigwinch_sig(); while(1){ - n = os_read_file(kernel_fd, &req, sizeof(req)); - if(n != sizeof(req)){ + n = os_read_file(kernel_fd, &req, + sizeof(struct io_thread_req *)); + if(n != sizeof(struct io_thread_req *)){ if(n < 0) printk("io_thread - read failed, fd = %d, " "err = %d\n", kernel_fd, -n); @@ -1426,9 +1464,10 @@ int io_thread(void *arg) continue; } io_count++; - do_io(&req); - n = os_write_file(kernel_fd, &req, sizeof(req)); - if(n != sizeof(req)) + do_io(req); + n = os_write_file(kernel_fd, &req, + sizeof(struct io_thread_req *)); + if(n != sizeof(struct io_thread_req *)) printk("io_thread - write failed, fd = %d, err = %d\n", kernel_fd, -n); } diff --git a/arch/um/drivers/ubd_user.c b/arch/um/drivers/ubd_user.c index b94d2bc4f..4707b3f 100644 --- a/arch/um/drivers/ubd_user.c +++ b/arch/um/drivers/ubd_user.c @@ -16,7 +16,6 @@ #include <sys/mman.h> #include <sys/param.h> #include "asm/types.h" -#include "user_util.h" #include "kern_util.h" #include "user.h" #include "ubd_user.h" @@ -47,8 +46,8 @@ int start_io_thread(unsigned long sp, int *fd_out) pid = clone(io_thread, (void *) sp, CLONE_FILES | CLONE_VM | SIGCHLD, NULL); if(pid < 0){ - printk("start_io_thread - clone failed : errno = %d\n", errno); err = -errno; + printk("start_io_thread - clone failed : errno = %d\n", errno); goto out_close; } @@ -60,16 +59,5 @@ int start_io_thread(unsigned long sp, int *fd_out) kernel_fd = -1; *fd_out = -1; out: - return(err); + return err; } - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/drivers/xterm.c b/arch/um/drivers/xterm.c index 850221d..571c2b3 100644 --- a/arch/um/drivers/xterm.c +++ b/arch/um/drivers/xterm.c @@ -14,7 +14,6 @@ #include <sys/socket.h> #include "kern_util.h" #include "chan_user.h" -#include "user_util.h" #include "user.h" #include "os.h" #include "xterm.h" diff --git a/arch/um/include/arch.h b/arch/um/include/arch.h new file mode 100644 index 0000000..10ad52d --- /dev/null +++ b/arch/um/include/arch.h @@ -0,0 +1,15 @@ +/* + * Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) + * Licensed under the GPL + */ + +#ifndef __ARCH_H__ +#define __ARCH_H__ + +#include "sysdep/ptrace.h" + +extern void arch_check_bugs(void); +extern int arch_fixup(unsigned long address, union uml_pt_regs *regs); +extern int arch_handle_signal(int sig, union uml_pt_regs *regs); + +#endif diff --git a/arch/um/include/as-layout.h b/arch/um/include/as-layout.h new file mode 100644 index 0000000..fccf187 --- /dev/null +++ b/arch/um/include/as-layout.h @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) + * Licensed under the GPL + */ + +#ifndef __START_H__ +#define __START_H__ + +#include "sysdep/ptrace.h" + +struct cpu_task { + int pid; + void *task; +}; + +extern struct cpu_task cpu_tasks[]; + +extern unsigned long low_physmem; +extern unsigned long high_physmem; +extern unsigned long uml_physmem; +extern unsigned long uml_reserved; +extern unsigned long end_vm; +extern unsigned long start_vm; +extern unsigned long long highmem; + +extern unsigned long _stext, _etext, _sdata, _edata, __bss_start, _end; +extern unsigned long _unprotected_end; +extern unsigned long brk_start; + +extern int linux_main(int argc, char **argv); +extern void set_cmdline(char *cmd); + +extern void (*sig_info[])(int, union uml_pt_regs *); + +#endif diff --git a/arch/um/include/common-offsets.h b/arch/um/include/common-offsets.h index 461175f..5593a80 100644 --- a/arch/um/include/common-offsets.h +++ b/arch/um/include/common-offsets.h @@ -24,5 +24,7 @@ DEFINE(UM_ELF_CLASS, ELF_CLASS); DEFINE(UM_ELFCLASS32, ELFCLASS32); DEFINE(UM_ELFCLASS64, ELFCLASS64); +DEFINE(UM_NR_CPUS, NR_CPUS); + /* For crypto assembler code. */ DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx)); diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h index 173af02..50a4969 100644 --- a/arch/um/include/kern_util.h +++ b/arch/um/include/kern_util.h @@ -8,6 +8,7 @@ #include "sysdep/ptrace.h" #include "sysdep/faultinfo.h" +#include "uml-config.h" typedef void (*kern_hndl)(int, union uml_pt_regs *); @@ -23,7 +24,6 @@ struct kern_handlers { extern const struct kern_handlers handlinfo_kern; extern int ncpus; -extern char *linux_prog; extern char *gdb_init; extern int kmalloc_ok; extern int jail; @@ -34,7 +34,9 @@ extern int nsyscalls; UML_ROUND_DOWN(((unsigned long) addr) + PAGE_SIZE - 1) extern int kernel_fork(unsigned long flags, int (*fn)(void *), void * arg); +#ifdef UML_CONFIG_MODE_TT extern unsigned long stack_sp(unsigned long page); +#endif extern int kernel_thread_proc(void *data); extern void syscall_segv(int sig); extern int current_pid(void); @@ -42,7 +44,7 @@ extern unsigned long alloc_stack(int order, int atomic); extern int do_signal(void); extern int is_stack_fault(unsigned long sp); extern unsigned long segv(struct faultinfo fi, unsigned long ip, - int is_user, void *sc); + int is_user, union uml_pt_regs *regs); extern int handle_page_fault(unsigned long address, unsigned long ip, int is_write, int is_user, int *code_out); extern void syscall_ready(void); @@ -50,7 +52,6 @@ extern void set_tracing(void *t, int tracing); extern int is_tracing(void *task); extern int segv_syscall(void); extern void kern_finish_exec(void *task, int new_pid, unsigned long stack); -extern int page_size(void); extern unsigned long page_mask(void); extern int need_finish_fork(void); extern void free_stack(unsigned long stack, int order); @@ -58,7 +59,6 @@ extern void add_input_request(int op, void (*proc)(int), void *arg); extern char *current_cmd(void); extern void timer_handler(int sig, union uml_pt_regs *regs); extern int set_signals(int enable); -extern void force_sigbus(void); extern int pid_to_processor_id(int pid); extern void deliver_signals(void *t); extern int next_trap_index(int max); @@ -70,7 +70,6 @@ extern void *syscall_sp(void *t); extern void syscall_trace(union uml_pt_regs *regs, int entryexit); extern int hz(void); extern unsigned int do_IRQ(int irq, union uml_pt_regs *regs); -extern int external_pid(void *t); extern void interrupt_end(void); extern void initial_thread_cb(void (*proc)(void *), void *arg); extern int debugger_signal(int status, int pid); @@ -81,7 +80,6 @@ extern int init_parent_proxy(int pid); extern int singlestepping(void *t); extern void check_stack_overflow(void *ptr); extern void relay_signal(int sig, union uml_pt_regs *regs); -extern void not_implemented(void); extern int user_context(unsigned long sp); extern void timer_irq(union uml_pt_regs *regs); extern void unprotect_stack(unsigned long stack); @@ -93,7 +91,6 @@ extern char *uml_strdup(char *string); extern void unprotect_kernel_mem(void); extern void protect_kernel_mem(void); extern void uml_cleanup(void); -extern void set_current(void *t); extern void lock_signalled_task(void *t); extern void IPI_handler(int cpu); extern int jail_setup(char *line, int *add); @@ -118,4 +115,6 @@ extern void time_init_kern(void); extern int __cant_sleep(void); extern void sigio_handler(int sig, union uml_pt_regs *regs); +extern void copy_sc(union uml_pt_regs *regs, void *from); + #endif diff --git a/arch/um/include/net_kern.h b/arch/um/include/net_kern.h index 125ab42..9237056 100644 --- a/arch/um/include/net_kern.h +++ b/arch/um/include/net_kern.h @@ -40,7 +40,7 @@ struct uml_net_private { void (*add_address)(unsigned char *, unsigned char *, void *); void (*delete_address)(unsigned char *, unsigned char *, void *); int (*set_mtu)(int mtu, void *); - int user[1]; + char user[0]; }; struct net_kern_info { diff --git a/arch/um/include/net_user.h b/arch/um/include/net_user.h index 19f207cd..cfe7c50 100644 --- a/arch/um/include/net_user.h +++ b/arch/um/include/net_user.h @@ -14,7 +14,7 @@ #define UML_NET_VERSION (4) struct net_user_info { - void (*init)(void *, void *); + int (*init)(void *, void *); int (*open)(void *); void (*close)(int, void *); void (*remove)(void *); diff --git a/arch/um/include/os.h b/arch/um/include/os.h index 5c74da4..688d181 100644 --- a/arch/um/include/os.h +++ b/arch/um/include/os.h @@ -16,6 +16,8 @@ #include "sysdep/tls.h" #include "sysdep/archsetjmp.h" +#define CATCH_EINTR(expr) while ((errno = 0, ((expr) < 0)) && (errno == EINTR)) + #define OS_TYPE_FILE 1 #define OS_TYPE_DIR 2 #define OS_TYPE_SYMLINK 3 @@ -273,8 +275,9 @@ extern void stack_protections(unsigned long address); extern void task_protections(unsigned long address); extern int raw(int fd); extern void setup_machinename(char *machine_out); -extern void setup_hostinfo(void); +extern void setup_hostinfo(char *buf, int len); extern int setjmp_wrapper(void (*proc)(void *, void *), ...); +extern void os_dump_core(void); /* time.c */ #define BILLION (1000 * 1000 * 1000) @@ -297,13 +300,12 @@ extern long syscall_stub_data(struct mm_id * mm_idp, unsigned long *data, int data_count, void **addr, void **stub_addr); extern int map(struct mm_id * mm_idp, unsigned long virt, - unsigned long len, int r, int w, int x, int phys_fd, + unsigned long len, int prot, int phys_fd, unsigned long long offset, int done, void **data); -extern int unmap(struct mm_id * mm_idp, void *addr, unsigned long len, +extern int unmap(struct mm_id * mm_idp, unsigned long addr, unsigned long len, int done, void **data); extern int protect(struct mm_id * mm_idp, unsigned long addr, - unsigned long len, int r, int w, int x, int done, - void **data); + unsigned long len, unsigned int prot, int done, void **data); /* skas/process.c */ extern int is_skas_winch(int pid, int fd, void *data); @@ -339,8 +341,11 @@ extern void maybe_sigio_broken(int fd, int read); /* skas/trap */ extern void sig_handler_common_skas(int sig, void *sc_ptr); -extern void user_signal(int sig, union uml_pt_regs *regs, int pid); +/* sys-x86_64/prctl.c */ extern int os_arch_prctl(int pid, int code, unsigned long *addr); +/* tty.c */ +int get_pty(void); + #endif diff --git a/arch/um/include/skas/mode_kern_skas.h b/arch/um/include/skas/mode_kern_skas.h index 9cd9c6e..8ee6285 100644 --- a/arch/um/include/skas/mode_kern_skas.h +++ b/arch/um/include/skas/mode_kern_skas.h @@ -33,6 +33,8 @@ extern unsigned long set_task_sizes_skas(unsigned long *task_size_out); extern int start_uml_skas(void); extern int external_pid_skas(struct task_struct *task); extern int thread_pid_skas(struct task_struct *task); +extern void flush_tlb_page_skas(struct vm_area_struct *vma, + unsigned long address); #define kmem_end_skas (host_task_size - 1024 * 1024) diff --git a/arch/um/include/tlb.h b/arch/um/include/tlb.h index 8efc1e0..bcd1a4a 100644 --- a/arch/um/include/tlb.h +++ b/arch/um/include/tlb.h @@ -14,9 +14,7 @@ struct host_vm_op { struct { unsigned long addr; unsigned long len; - unsigned int r:1; - unsigned int w:1; - unsigned int x:1; + unsigned int prot; int fd; __u64 offset; } mmap; @@ -27,9 +25,7 @@ struct host_vm_op { struct { unsigned long addr; unsigned long len; - unsigned int r:1; - unsigned int w:1; - unsigned int x:1; + unsigned int prot; } mprotect; } u; }; diff --git a/arch/um/include/tt/uaccess-tt.h b/arch/um/include/tt/uaccess-tt.h index b19645f..13a64f6 100644 --- a/arch/um/include/tt/uaccess-tt.h +++ b/arch/um/include/tt/uaccess-tt.h @@ -27,8 +27,6 @@ extern unsigned long uml_physmem; #define access_ok_tt(type, addr, size) \ (is_stack(addr, size)) -extern unsigned long get_fault_addr(void); - extern int __do_copy_from_user(void *to, const void *from, int n, void **fault_addr, void **fault_catcher); extern int __do_strncpy_from_user(char *dst, const char *src, size_t n, diff --git a/arch/um/include/um_malloc.h b/arch/um/include/um_malloc.h index 0363a9b..e6d7c5a 100644 --- a/arch/um/include/um_malloc.h +++ b/arch/um/include/um_malloc.h @@ -11,7 +11,6 @@ extern void *um_kmalloc_atomic(int size); extern void kfree(const void *ptr); extern void *um_vmalloc(int size); -extern void *um_vmalloc_atomic(int size); extern void vfree(void *ptr); #endif /* __UM_MALLOC_H__ */ diff --git a/arch/um/include/user.h b/arch/um/include/user.h index acadce3..d380e6d 100644 --- a/arch/um/include/user.h +++ b/arch/um/include/user.h @@ -6,6 +6,19 @@ #ifndef __USER_H__ #define __USER_H__ +/* + * The usual definition - copied here because the kernel provides its own, + * fancier, type-safe, definition. Using that one would require + * copying too much infrastructure for my taste, so userspace files + * get less checking than kernel files. + */ +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) + +/* + * This will provide the size_t definition in both kernel and userspace builds + */ +#include <linux/types.h> + extern void panic(const char *fmt, ...) __attribute__ ((format (printf, 1, 2))); extern int printk(const char *fmt, ...) @@ -13,19 +26,7 @@ extern int printk(const char *fmt, ...) extern void schedule(void); extern int in_aton(char *str); extern int open_gdb_chan(void); -/* These use size_t, however unsigned long is correct on both i386 and x86_64. */ -extern unsigned long strlcpy(char *, const char *, unsigned long); -extern unsigned long strlcat(char *, const char *, unsigned long); +extern size_t strlcpy(char *, const char *, size_t); +extern size_t strlcat(char *, const char *, size_t); #endif - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/include/user_util.h b/arch/um/include/user_util.h deleted file mode 100644 index 023575f..0000000 --- a/arch/um/include/user_util.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) - * Licensed under the GPL - */ - -#ifndef __USER_UTIL_H__ -#define __USER_UTIL_H__ - -#include "sysdep/ptrace.h" - -/* Copied from kernel.h */ -#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) - -#define CATCH_EINTR(expr) while ((errno = 0, ((expr) < 0)) && (errno == EINTR)) - -extern int mode_tt; - -extern int grantpt(int __fd); -extern int unlockpt(int __fd); -extern char *ptsname(int __fd); - -struct cpu_task { - int pid; - void *task; -}; - -extern struct cpu_task cpu_tasks[]; - -extern void (*sig_info[])(int, union uml_pt_regs *); - -extern unsigned long low_physmem; -extern unsigned long high_physmem; -extern unsigned long uml_physmem; -extern unsigned long uml_reserved; -extern unsigned long end_vm; -extern unsigned long start_vm; -extern unsigned long long highmem; - -extern char host_info[]; - -extern unsigned long _stext, _etext, _sdata, _edata, __bss_start, _end; -extern unsigned long _unprotected_end; -extern unsigned long brk_start; - -extern int pty_output_sigio; -extern int pty_close_sigio; - -extern void *add_signal_handler(int sig, void (*handler)(int)); -extern int linux_main(int argc, char **argv); -extern void set_cmdline(char *cmd); -extern void input_cb(void (*proc)(void *), void *arg, int arg_len); -extern int get_pty(void); -extern int switcheroo(int fd, int prot, void *from, void *to, int size); -extern void do_exec(int old_pid, int new_pid); -extern void tracer_panic(char *msg, ...) - __attribute__ ((format (printf, 1, 2))); -extern int detach(int pid, int sig); -extern int attach(int pid); -extern void kill_child_dead(int pid); -extern int cont(int pid); -extern void check_sigio(void); -extern void arch_check_bugs(void); -extern int cpu_feature(char *what, char *buf, int len); -extern int arch_handle_signal(int sig, union uml_pt_regs *regs); -extern int arch_fixup(unsigned long address, void *sc_ptr); -extern void arch_init_thread(void); -extern int raw(int fd); - -#endif diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c index 1211664..356e50f 100644 --- a/arch/um/kernel/exec.c +++ b/arch/um/kernel/exec.c @@ -10,8 +10,8 @@ #include "asm/pgtable.h" #include "asm/tlbflush.h" #include "asm/uaccess.h" -#include "user_util.h" #include "kern_util.h" +#include "as-layout.h" #include "mem_user.h" #include "kern.h" #include "irq_user.h" diff --git a/arch/um/kernel/init_task.c b/arch/um/kernel/init_task.c index 8cde431..cda91aa 100644 --- a/arch/um/kernel/init_task.c +++ b/arch/um/kernel/init_task.c @@ -10,7 +10,6 @@ #include "linux/mqueue.h" #include "asm/uaccess.h" #include "asm/pgtable.h" -#include "user_util.h" #include "mem_user.h" #include "os.h" diff --git a/arch/um/kernel/initrd.c b/arch/um/kernel/initrd.c index 82ecf90..16dc43e 100644 --- a/arch/um/kernel/initrd.c +++ b/arch/um/kernel/initrd.c @@ -7,7 +7,6 @@ #include "linux/bootmem.h" #include "linux/initrd.h" #include "asm/types.h" -#include "user_util.h" #include "kern_util.h" #include "initrd.h" #include "init.h" @@ -22,12 +21,20 @@ static int __init read_initrd(void) long long size; int err; - if(initrd == NULL) return 0; + if(initrd == NULL) + return 0; + err = os_file_size(initrd, &size); - if(err) return 0; + if(err) + return 0; + area = alloc_bootmem(size); - if(area == NULL) return 0; - if(load_initrd(initrd, area, size) == -1) return 0; + if(area == NULL) + return 0; + + if(load_initrd(initrd, area, size) == -1) + return 0; + initrd_start = (unsigned long) area; initrd_end = initrd_start + size; return 0; @@ -54,25 +61,15 @@ int load_initrd(char *filename, void *buf, int size) fd = os_open_file(filename, of_read(OPENFLAGS()), 0); if(fd < 0){ printk("Opening '%s' failed - err = %d\n", filename, -fd); - return(-1); + return -1; } n = os_read_file(fd, buf, size); if(n != size){ printk("Read of %d bytes from '%s' failed, err = %d\n", size, filename, -n); - return(-1); + return -1; } os_close_file(fd); - return(0); + return 0; } -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c index dbf2f5b..8f2ed36 100644 --- a/arch/um/kernel/irq.c +++ b/arch/um/kernel/irq.c @@ -25,7 +25,6 @@ #include "asm/system.h" #include "asm/errno.h" #include "asm/uaccess.h" -#include "user_util.h" #include "kern_util.h" #include "irq_user.h" #include "irq_kern.h" @@ -79,6 +78,14 @@ skip: return 0; } +/* + * This list is accessed under irq_lock, except in sigio_handler, + * where it is safe from being modified. IRQ handlers won't change it - + * if an IRQ source has vanished, it will be freed by free_irqs just + * before returning from sigio_handler. That will process a separate + * list of irqs to free, with its own locking, coming back here to + * remove list elements, taking the irq_lock to do so. + */ static struct irq_fd *active_fds = NULL; static struct irq_fd **last_irq_ptr = &active_fds; @@ -244,6 +251,7 @@ void free_irq_by_fd(int fd) free_irq_by_cb(same_fd, &fd); } +/* Must be called with irq_lock held */ static struct irq_fd *find_irq_by_fd(int fd, int irqnum, int *index_out) { struct irq_fd *irq; @@ -309,6 +317,12 @@ void deactivate_fd(int fd, int irqnum) ignore_sigio_fd(fd); } +/* + * Called just before shutdown in order to provide a clean exec + * environment in case the system is rebooting. No locking because + * that would cause a pointless shutdown hang if something hadn't + * released the lock. + */ int deactivate_all_fds(void) { struct irq_fd *irq; diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c index 0e00cf9..7b3e53f 100644 --- a/arch/um/kernel/ksyms.c +++ b/arch/um/kernel/ksyms.c @@ -16,7 +16,7 @@ #include "asm/page.h" #include "asm/tlbflush.h" #include "kern_util.h" -#include "user_util.h" +#include "as-layout.h" #include "mem_user.h" #include "os.h" diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index df7d662..72ff856 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -13,8 +13,8 @@ #include "asm/page.h" #include "asm/fixmap.h" #include "asm/pgalloc.h" -#include "user_util.h" #include "kern_util.h" +#include "as-layout.h" #include "kern.h" #include "mem_user.h" #include "uml_uaccess.h" @@ -216,7 +216,7 @@ static void __init fixaddr_user_init( void) #endif } -void paging_init(void) +void __init paging_init(void) { unsigned long zones_size[MAX_NR_ZONES], vaddr; int i; diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c index 638f3b5..3ba6e4c 100644 --- a/arch/um/kernel/physmem.c +++ b/arch/um/kernel/physmem.c @@ -13,7 +13,7 @@ #include "asm/types.h" #include "asm/pgtable.h" #include "kern_util.h" -#include "user_util.h" +#include "as-layout.h" #include "mode_kern.h" #include "mem.h" #include "mem_user.h" @@ -21,229 +21,8 @@ #include "kern.h" #include "init.h" -struct phys_desc { - struct rb_node rb; - int fd; - __u64 offset; - void *virt; - unsigned long phys; - struct list_head list; -}; - -static struct rb_root phys_mappings = RB_ROOT; - -static struct rb_node **find_rb(void *virt) -{ - struct rb_node **n = &phys_mappings.rb_node; - struct phys_desc *d; - - while(*n != NULL){ - d = rb_entry(*n, struct phys_desc, rb); - if(d->virt == virt) - return n; - - if(d->virt > virt) - n = &(*n)->rb_left; - else - n = &(*n)->rb_right; - } - - return n; -} - -static struct phys_desc *find_phys_mapping(void *virt) -{ - struct rb_node **n = find_rb(virt); - - if(*n == NULL) - return NULL; - - return rb_entry(*n, struct phys_desc, rb); -} - -static void insert_phys_mapping(struct phys_desc *desc) -{ - struct rb_node **n = find_rb(desc->virt); - - if(*n != NULL) - panic("Physical remapping for %p already present", - desc->virt); - - rb_link_node(&desc->rb, rb_parent(*n), n); - rb_insert_color(&desc->rb, &phys_mappings); -} - -LIST_HEAD(descriptor_mappings); - -struct desc_mapping { - int fd; - struct list_head list; - struct list_head pages; -}; - -static struct desc_mapping *find_mapping(int fd) -{ - struct desc_mapping *desc; - struct list_head *ele; - - list_for_each(ele, &descriptor_mappings){ - desc = list_entry(ele, struct desc_mapping, list); - if(desc->fd == fd) - return desc; - } - - return NULL; -} - -static struct desc_mapping *descriptor_mapping(int fd) -{ - struct desc_mapping *desc; - - desc = find_mapping(fd); - if(desc != NULL) - return desc; - - desc = kmalloc(sizeof(*desc), GFP_ATOMIC); - if(desc == NULL) - return NULL; - - *desc = ((struct desc_mapping) - { .fd = fd, - .list = LIST_HEAD_INIT(desc->list), - .pages = LIST_HEAD_INIT(desc->pages) }); - list_add(&desc->list, &descriptor_mappings); - - return desc; -} - -int physmem_subst_mapping(void *virt, int fd, __u64 offset, int w) -{ - struct desc_mapping *fd_maps; - struct phys_desc *desc; - unsigned long phys; - int err; - - fd_maps = descriptor_mapping(fd); - if(fd_maps == NULL) - return -ENOMEM; - - phys = __pa(virt); - desc = find_phys_mapping(virt); - if(desc != NULL) - panic("Address 0x%p is already substituted\n", virt); - - err = -ENOMEM; - desc = kmalloc(sizeof(*desc), GFP_ATOMIC); - if(desc == NULL) - goto out; - - *desc = ((struct phys_desc) - { .fd = fd, - .offset = offset, - .virt = virt, - .phys = __pa(virt), - .list = LIST_HEAD_INIT(desc->list) }); - insert_phys_mapping(desc); - - list_add(&desc->list, &fd_maps->pages); - - virt = (void *) ((unsigned long) virt & PAGE_MASK); - err = os_map_memory(virt, fd, offset, PAGE_SIZE, 1, w, 0); - if(!err) - goto out; - - rb_erase(&desc->rb, &phys_mappings); - kfree(desc); - out: - return err; -} - static int physmem_fd = -1; -static void remove_mapping(struct phys_desc *desc) -{ - void *virt = desc->virt; - int err; - - rb_erase(&desc->rb, &phys_mappings); - list_del(&desc->list); - kfree(desc); - - err = os_map_memory(virt, physmem_fd, __pa(virt), PAGE_SIZE, 1, 1, 0); - if(err) - panic("Failed to unmap block device page from physical memory, " - "errno = %d", -err); -} - -int physmem_remove_mapping(void *virt) -{ - struct phys_desc *desc; - - virt = (void *) ((unsigned long) virt & PAGE_MASK); - desc = find_phys_mapping(virt); - if(desc == NULL) - return 0; - - remove_mapping(desc); - return 1; -} - -void physmem_forget_descriptor(int fd) -{ - struct desc_mapping *desc; - struct phys_desc *page; - struct list_head *ele, *next; - __u64 offset; - void *addr; - int err; - - desc = find_mapping(fd); - if(desc == NULL) - return; - - list_for_each_safe(ele, next, &desc->pages){ - page = list_entry(ele, struct phys_desc, list); - offset = page->offset; - addr = page->virt; - remove_mapping(page); - err = os_seek_file(fd, offset); - if(err) - panic("physmem_forget_descriptor - failed to seek " - "to %lld in fd %d, error = %d\n", - offset, fd, -err); - err = os_read_file(fd, addr, PAGE_SIZE); - if(err < 0) - panic("physmem_forget_descriptor - failed to read " - "from fd %d to 0x%p, error = %d\n", - fd, addr, -err); - } - - list_del(&desc->list); - kfree(desc); -} - -EXPORT_SYMBOL(physmem_forget_descriptor); -EXPORT_SYMBOL(physmem_remove_mapping); -EXPORT_SYMBOL(physmem_subst_mapping); - -void arch_free_page(struct page *page, int order) -{ - void *virt; - int i; - - for(i = 0; i < (1 << order); i++){ - virt = __va(page_to_phys(page + i)); - physmem_remove_mapping(virt); - } -} - -int is_remapped(void *virt) -{ - struct phys_desc *desc = find_phys_mapping(virt); - - return desc != NULL; -} - /* Changed during early boot */ unsigned long high_physmem; @@ -350,14 +129,9 @@ void setup_physmem(unsigned long start, unsigned long reserve_end, int phys_mapping(unsigned long phys, __u64 *offset_out) { - struct phys_desc *desc = find_phys_mapping(__va(phys & PAGE_MASK)); int fd = -1; - if(desc != NULL){ - fd = desc->fd; - *offset_out = desc->offset; - } - else if(phys < physmem_size){ + if(phys < physmem_size){ fd = physmem_fd; *offset_out = phys; } diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index 348b272..8d2c549 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -32,8 +32,8 @@ #include "asm/tlbflush.h" #include "asm/uaccess.h" #include "asm/user.h" -#include "user_util.h" #include "kern_util.h" +#include "as-layout.h" #include "kern.h" #include "signal_kern.h" #include "init.h" @@ -54,11 +54,9 @@ */ struct cpu_task cpu_tasks[NR_CPUS] = { [0 ... NR_CPUS - 1] = { -1, NULL } }; -int external_pid(void *t) +static inline int external_pid(struct task_struct *task) { - struct task_struct *task = t ? t : current; - - return(CHOOSE_MODE_PROC(external_pid_tt, external_pid_skas, task)); + return CHOOSE_MODE_PROC(external_pid_tt, external_pid_skas, task); } int pid_to_processor_id(int pid) @@ -66,9 +64,10 @@ int pid_to_processor_id(int pid) int i; for(i = 0; i < ncpus; i++){ - if(cpu_tasks[i].pid == pid) return(i); + if(cpu_tasks[i].pid == pid) + return i; } - return(-1); + return -1; } void free_stack(unsigned long stack, int order) @@ -85,9 +84,9 @@ unsigned long alloc_stack(int order, int atomic) flags = GFP_ATOMIC; page = __get_free_pages(flags, order); if(page == 0) - return(0); + return 0; stack_protections(page); - return(page); + return page; } int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) @@ -98,15 +97,11 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) current->thread.request.u.thread.arg = arg; pid = do_fork(CLONE_VM | CLONE_UNTRACED | flags, 0, ¤t->thread.regs, 0, NULL, NULL); - if(pid < 0) - panic("do_fork failed in kernel_thread, errno = %d", pid); - return(pid); + return pid; } -void set_current(void *t) +static inline void set_current(struct task_struct *task) { - struct task_struct *task = t; - cpu_tasks[task_thread_info(task)->cpu] = ((struct cpu_task) { external_pid(task), task }); } @@ -128,14 +123,16 @@ void *_switch_to(void *prev, void *next, void *last) prev= current; } while(current->thread.saved_task); - return(current->thread.prev_sched); + return current->thread.prev_sched; } void interrupt_end(void) { - if(need_resched()) schedule(); - if(test_tsk_thread_flag(current, TIF_SIGPENDING)) do_signal(); + if(need_resched()) + schedule(); + if(test_tsk_thread_flag(current, TIF_SIGPENDING)) + do_signal(); } void release_thread(struct task_struct *task) @@ -150,7 +147,7 @@ void exit_thread(void) void *get_current(void) { - return(current); + return current; } int copy_thread(int nr, unsigned long clone_flags, unsigned long sp, @@ -188,15 +185,12 @@ void initial_thread_cb(void (*proc)(void *), void *arg) kmalloc_ok = save_kmalloc_ok; } +#ifdef CONFIG_MODE_TT unsigned long stack_sp(unsigned long page) { - return(page + PAGE_SIZE - sizeof(void *)); -} - -int current_pid(void) -{ - return(current->pid); + return page + PAGE_SIZE - sizeof(void *); } +#endif void default_idle(void) { @@ -221,11 +215,6 @@ void cpu_idle(void) CHOOSE_MODE(init_idle_tt(), init_idle_skas()); } -int page_size(void) -{ - return(PAGE_SIZE); -} - void *um_virt_to_phys(struct task_struct *task, unsigned long addr, pte_t *pte_out) { @@ -236,68 +225,43 @@ void *um_virt_to_phys(struct task_struct *task, unsigned long addr, pte_t ptent; if(task->mm == NULL) - return(ERR_PTR(-EINVAL)); + return ERR_PTR(-EINVAL); pgd = pgd_offset(task->mm, addr); if(!pgd_present(*pgd)) - return(ERR_PTR(-EINVAL)); + return ERR_PTR(-EINVAL); pud = pud_offset(pgd, addr); if(!pud_present(*pud)) - return(ERR_PTR(-EINVAL)); + return ERR_PTR(-EINVAL); pmd = pmd_offset(pud, addr); if(!pmd_present(*pmd)) - return(ERR_PTR(-EINVAL)); + return ERR_PTR(-EINVAL); pte = pte_offset_kernel(pmd, addr); ptent = *pte; if(!pte_present(ptent)) - return(ERR_PTR(-EINVAL)); + return ERR_PTR(-EINVAL); if(pte_out != NULL) *pte_out = ptent; - return((void *) (pte_val(ptent) & PAGE_MASK) + (addr & ~PAGE_MASK)); + return (void *) (pte_val(ptent) & PAGE_MASK) + (addr & ~PAGE_MASK); } char *current_cmd(void) { #if defined(CONFIG_SMP) || defined(CONFIG_HIGHMEM) - return("(Unknown)"); + return "(Unknown)"; #else void *addr = um_virt_to_phys(current, current->mm->arg_start, NULL); return IS_ERR(addr) ? "(Unknown)": __va((unsigned long) addr); #endif } -void force_sigbus(void) -{ - printk(KERN_ERR "Killing pid %d because of a lack of memory\n", - current->pid); - lock_kernel(); - sigaddset(¤t->pending.signal, SIGBUS); - recalc_sigpending(); - current->flags |= PF_SIGNALED; - do_exit(SIGBUS | 0x80); -} - void dump_thread(struct pt_regs *regs, struct user *u) { } -void enable_hlt(void) -{ - panic("enable_hlt"); -} - -EXPORT_SYMBOL(enable_hlt); - -void disable_hlt(void) -{ - panic("disable_hlt"); -} - -EXPORT_SYMBOL(disable_hlt); - void *um_kmalloc(int size) { return kmalloc(size, GFP_KERNEL); @@ -313,36 +277,17 @@ void *um_vmalloc(int size) return vmalloc(size); } -void *um_vmalloc_atomic(int size) -{ - return __vmalloc(size, GFP_ATOMIC | __GFP_HIGHMEM, PAGE_KERNEL); -} - int __cant_sleep(void) { return in_atomic() || irqs_disabled() || in_interrupt(); /* Is in_interrupt() really needed? */ } -unsigned long get_fault_addr(void) -{ - return((unsigned long) current->thread.fault_addr); -} - -EXPORT_SYMBOL(get_fault_addr); - -void not_implemented(void) -{ - printk(KERN_DEBUG "Something isn't implemented in here\n"); -} - -EXPORT_SYMBOL(not_implemented); - int user_context(unsigned long sp) { unsigned long stack; stack = sp & (PAGE_MASK << CONFIG_KERNEL_STACK_ORDER); - return(stack != (unsigned long) current_thread); + return stack != (unsigned long) current_thread; } extern exitcall_t __uml_exitcall_begin, __uml_exitcall_end; @@ -363,22 +308,22 @@ char *uml_strdup(char *string) int copy_to_user_proc(void __user *to, void *from, int size) { - return(copy_to_user(to, from, size)); + return copy_to_user(to, from, size); } int copy_from_user_proc(void *to, void __user *from, int size) { - return(copy_from_user(to, from, size)); + return copy_from_user(to, from, size); } int clear_user_proc(void __user *buf, int size) { - return(clear_user(buf, size)); + return clear_user(buf, size); } int strlen_user_proc(char __user *str) { - return(strlen_user(str)); + return strlen_user(str); } int smp_sigio_handler(void) @@ -387,14 +332,14 @@ int smp_sigio_handler(void) int cpu = current_thread->cpu; IPI_handler(cpu); if(cpu != 0) - return(1); + return 1; #endif - return(0); + return 0; } int cpu(void) { - return(current_thread->cpu); + return current_thread->cpu; } static atomic_t using_sysemu = ATOMIC_INIT(0); @@ -443,7 +388,7 @@ int __init make_proc_sysemu(void) if (ent == NULL) { printk(KERN_WARNING "Failed to register /proc/sysemu\n"); - return(0); + return 0; } ent->read_proc = proc_read_sysemu; diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c index f602623..7e4305a 100644 --- a/arch/um/kernel/reboot.c +++ b/arch/um/kernel/reboot.c @@ -6,7 +6,6 @@ #include "linux/module.h" #include "linux/sched.h" #include "asm/smp.h" -#include "user_util.h" #include "kern_util.h" #include "kern.h" #include "os.h" diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c index 3c798cd..c4020c3 100644 --- a/arch/um/kernel/signal.c +++ b/arch/um/kernel/signal.c @@ -17,7 +17,6 @@ #include "asm/signal.h" #include "asm/uaccess.h" #include "asm/unistd.h" -#include "user_util.h" #include "asm/ucontext.h" #include "kern_util.h" #include "signal_kern.h" diff --git a/arch/um/kernel/skas/exec.c b/arch/um/kernel/skas/exec.c index 54b7959..580eb64 100644 --- a/arch/um/kernel/skas/exec.c +++ b/arch/um/kernel/skas/exec.c @@ -17,7 +17,17 @@ void flush_thread_skas(void) { - force_flush_all(); + void *data = NULL; + unsigned long end = proc_mm ? task_size : CONFIG_STUB_START; + int ret; + + ret = unmap(¤t->mm->context.skas.id, 0, end, 1, &data); + if(ret){ + printk("flush_thread_skas - clearing address space failed, " + "err = %d\n", ret); + force_sig(SIGKILL, current); + } + switch_mm_skas(¤t->mm->context.skas.id); } diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c index ae4fa71..ef36fac 100644 --- a/arch/um/kernel/skas/process.c +++ b/arch/um/kernel/skas/process.c @@ -13,9 +13,9 @@ #include "asm/uaccess.h" #include "asm/atomic.h" #include "kern_util.h" +#include "as-layout.h" #include "skas.h" #include "os.h" -#include "user_util.h" #include "tlb.h" #include "kern.h" #include "mode.h" diff --git a/arch/um/kernel/skas/tlb.c b/arch/um/kernel/skas/tlb.c index 27eb29c..c0f0693 100644 --- a/arch/um/kernel/skas/tlb.c +++ b/arch/um/kernel/skas/tlb.c @@ -10,7 +10,6 @@ #include "asm/page.h" #include "asm/pgtable.h" #include "asm/mmu.h" -#include "user_util.h" #include "mem_user.h" #include "mem.h" #include "skas.h" @@ -28,19 +27,17 @@ static int do_ops(union mm_context *mmu, struct host_vm_op *ops, int last, switch(op->type){ case MMAP: ret = map(&mmu->skas.id, op->u.mmap.addr, - op->u.mmap.len, op->u.mmap.r, op->u.mmap.w, - op->u.mmap.x, op->u.mmap.fd, - op->u.mmap.offset, finished, flush); + op->u.mmap.len, op->u.mmap.prot, + op->u.mmap.fd, op->u.mmap.offset, finished, + flush); break; case MUNMAP: - ret = unmap(&mmu->skas.id, - (void *) op->u.munmap.addr, + ret = unmap(&mmu->skas.id, op->u.munmap.addr, op->u.munmap.len, finished, flush); break; case MPROTECT: ret = protect(&mmu->skas.id, op->u.mprotect.addr, - op->u.mprotect.len, op->u.mprotect.r, - op->u.mprotect.w, op->u.mprotect.x, + op->u.mprotect.len, op->u.mprotect.prot, finished, flush); break; default: @@ -92,6 +89,76 @@ void flush_tlb_mm_skas(struct mm_struct *mm) void force_flush_all_skas(void) { - unsigned long end = proc_mm ? task_size : CONFIG_STUB_START; - fix_range(current->mm, 0, end, 1); + struct mm_struct *mm = current->mm; + struct vm_area_struct *vma = mm->mmap; + + while(vma != NULL) { + fix_range(mm, vma->vm_start, vma->vm_end, 1); + vma = vma->vm_next; + } +} + +void flush_tlb_page_skas(struct vm_area_struct *vma, unsigned long address) +{ + pgd_t *pgd; + pud_t *pud; + pmd_t *pmd; + pte_t *pte; + struct mm_struct *mm = vma->vm_mm; + void *flush = NULL; + int r, w, x, prot, err = 0; + struct mm_id *mm_id; + + pgd = pgd_offset(mm, address); + if(!pgd_present(*pgd)) + goto kill; + + pud = pud_offset(pgd, address); + if(!pud_present(*pud)) + goto kill; + + pmd = pmd_offset(pud, address); + if(!pmd_present(*pmd)) + goto kill; + + pte = pte_offset_kernel(pmd, address); + + r = pte_read(*pte); + w = pte_write(*pte); + x = pte_exec(*pte); + if (!pte_young(*pte)) { + r = 0; + w = 0; + } else if (!pte_dirty(*pte)) { + w = 0; + } + + mm_id = &mm->context.skas.id; + prot = ((r ? UM_PROT_READ : 0) | (w ? UM_PROT_WRITE : 0) | + (x ? UM_PROT_EXEC : 0)); + if(pte_newpage(*pte)){ + if(pte_present(*pte)){ + unsigned long long offset; + int fd; + + fd = phys_mapping(pte_val(*pte) & PAGE_MASK, &offset); + err = map(mm_id, address, PAGE_SIZE, prot, fd, offset, + 1, &flush); + } + else err = unmap(mm_id, address, PAGE_SIZE, 1, &flush); + } + else if(pte_newprot(*pte)) + err = protect(mm_id, address, PAGE_SIZE, prot, 1, &flush); + + if(err) + goto kill; + + *pte = pte_mkuptodate(*pte); + + return; + +kill: + printk("Failed to flush page for address 0x%lx\n", address); + force_sig(SIGKILL, current); } + diff --git a/arch/um/kernel/smp.c b/arch/um/kernel/smp.c index 759b070..e6a7778 100644 --- a/arch/um/kernel/smp.c +++ b/arch/um/kernel/smp.c @@ -21,7 +21,6 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); #include "asm/smp.h" #include "asm/processor.h" #include "asm/spinlock.h" -#include "user_util.h" #include "kern_util.h" #include "kern.h" #include "irq_user.h" @@ -90,7 +89,7 @@ static int idle_proc(void *cpup) cpu_set(cpu, cpu_online_map); default_idle(); - return(0); + return 0; } static struct task_struct *idle_thread(int cpu) @@ -98,8 +97,8 @@ static struct task_struct *idle_thread(int cpu) struct task_struct *new_task; unsigned char c; - current->thread.request.u.thread.proc = idle_proc; - current->thread.request.u.thread.arg = (void *) cpu; + current->thread.request.u.thread.proc = idle_proc; + current->thread.request.u.thread.arg = (void *) cpu; new_task = fork_idle(cpu); if(IS_ERR(new_task)) panic("copy_process failed in idle_thread, error = %ld", @@ -110,9 +109,9 @@ static struct task_struct *idle_thread(int cpu) .task = new_task } ); idle_threads[cpu] = new_task; CHOOSE_MODE(os_write_file(new_task->thread.mode.tt.switch_pipe[1], &c, - sizeof(c)), + sizeof(c)), ({ panic("skas mode doesn't support SMP"); })); - return(new_task); + return new_task; } void smp_prepare_cpus(unsigned int maxcpus) @@ -163,13 +162,13 @@ int __cpu_up(unsigned int cpu) cpu_set(cpu, smp_commenced_mask); while (!cpu_isset(cpu, cpu_online_map)) mb(); - return(0); + return 0; } int setup_profiling_timer(unsigned int multiplier) { printk(KERN_INFO "setup_profiling_timer\n"); - return(0); + return 0; } void smp_call_function_slave(int cpu); @@ -205,7 +204,7 @@ void IPI_handler(int cpu) int hard_smp_processor_id(void) { - return(pid_to_processor_id(os_getpid())); + return pid_to_processor_id(os_getpid()); } static DEFINE_SPINLOCK(call_lock); @@ -254,14 +253,3 @@ int smp_call_function(void (*_func)(void *info), void *_info, int nonatomic, } #endif - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c index 2828c52..237c4ea 100644 --- a/arch/um/kernel/syscall.c +++ b/arch/um/kernel/syscall.c @@ -18,7 +18,6 @@ #include "asm/mman.h" #include "asm/uaccess.h" #include "kern_util.h" -#include "user_util.h" #include "sysdep/syscalls.h" #include "mode_kern.h" #include "choose-mode.h" diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c index f9e02b3..9326357 100644 --- a/arch/um/kernel/sysrq.c +++ b/arch/um/kernel/sysrq.c @@ -10,7 +10,6 @@ #include "asm/page.h" #include "asm/processor.h" #include "sysrq.h" -#include "user_util.h" /* Catch non-i386 SUBARCH's. */ #if !defined(CONFIG_UML_X86) || defined(CONFIG_64BIT) diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c index b1f8b07..cd7349d 100644 --- a/arch/um/kernel/time.c +++ b/arch/um/kernel/time.c @@ -18,7 +18,6 @@ #include "asm/param.h" #include "asm/current.h" #include "kern_util.h" -#include "user_util.h" #include "mode.h" #include "os.h" @@ -35,8 +34,8 @@ unsigned long long sched_clock(void) return (unsigned long long)jiffies_64 * (1000000000 / HZ); } -static unsigned long long prev_nsecs[NR_CPUS]; #ifdef CONFIG_UML_REAL_TIME_CLOCK +static unsigned long long prev_nsecs[NR_CPUS]; static long long delta[NR_CPUS]; /* Deviation per interval */ #endif @@ -95,7 +94,12 @@ irqreturn_t um_timer(int irq, void *dev) do_timer(1); +#ifdef CONFIG_UML_REAL_TIME_CLOCK nsecs = get_time(); +#else + nsecs = (unsigned long long) xtime.tv_sec * BILLION + xtime.tv_nsec + + BILLION / HZ; +#endif xtime.tv_sec = nsecs / NSEC_PER_SEC; xtime.tv_nsec = nsecs - xtime.tv_sec * NSEC_PER_SEC; @@ -128,13 +132,18 @@ void time_init(void) nsecs = os_nsecs(); set_normalized_timespec(&wall_to_monotonic, -nsecs / BILLION, -nsecs % BILLION); + set_normalized_timespec(&xtime, nsecs / BILLION, nsecs % BILLION); late_time_init = register_timer; } void do_gettimeofday(struct timeval *tv) { +#ifdef CONFIG_UML_REAL_TIME_CLOCK unsigned long long nsecs = get_time(); - +#else + unsigned long long nsecs = (unsigned long long) xtime.tv_sec * BILLION + + xtime.tv_nsec; +#endif tv->tv_sec = nsecs / NSEC_PER_SEC; /* Careful about calculations here - this was originally done as * (nsecs - tv->tv_sec * NSEC_PER_SEC) / NSEC_PER_USEC diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c index 54a5ff2..8a8d528 100644 --- a/arch/um/kernel/tlb.c +++ b/arch/um/kernel/tlb.c @@ -6,17 +6,18 @@ #include "linux/mm.h" #include "asm/page.h" #include "asm/pgalloc.h" +#include "asm/pgtable.h" #include "asm/tlbflush.h" #include "choose-mode.h" #include "mode_kern.h" -#include "user_util.h" +#include "as-layout.h" #include "tlb.h" #include "mem.h" #include "mem_user.h" #include "os.h" static int add_mmap(unsigned long virt, unsigned long phys, unsigned long len, - int r, int w, int x, struct host_vm_op *ops, int *index, + unsigned int prot, struct host_vm_op *ops, int *index, int last_filled, union mm_context *mmu, void **flush, int (*do_ops)(union mm_context *, struct host_vm_op *, int, int, void **)) @@ -30,8 +31,7 @@ static int add_mmap(unsigned long virt, unsigned long phys, unsigned long len, last = &ops[*index]; if((last->type == MMAP) && (last->u.mmap.addr + last->u.mmap.len == virt) && - (last->u.mmap.r == r) && (last->u.mmap.w == w) && - (last->u.mmap.x == x) && (last->u.mmap.fd == fd) && + (last->u.mmap.prot == prot) && (last->u.mmap.fd == fd) && (last->u.mmap.offset + last->u.mmap.len == offset)){ last->u.mmap.len += len; return 0; @@ -47,9 +47,7 @@ static int add_mmap(unsigned long virt, unsigned long phys, unsigned long len, .u = { .mmap = { .addr = virt, .len = len, - .r = r, - .w = w, - .x = x, + .prot = prot, .fd = fd, .offset = offset } } }); @@ -86,8 +84,8 @@ static int add_munmap(unsigned long addr, unsigned long len, return ret; } -static int add_mprotect(unsigned long addr, unsigned long len, int r, int w, - int x, struct host_vm_op *ops, int *index, +static int add_mprotect(unsigned long addr, unsigned long len, + unsigned int prot, struct host_vm_op *ops, int *index, int last_filled, union mm_context *mmu, void **flush, int (*do_ops)(union mm_context *, struct host_vm_op *, int, int, void **)) @@ -99,8 +97,7 @@ static int add_mprotect(unsigned long addr, unsigned long len, int r, int w, last = &ops[*index]; if((last->type == MPROTECT) && (last->u.mprotect.addr + last->u.mprotect.len == addr) && - (last->u.mprotect.r == r) && (last->u.mprotect.w == w) && - (last->u.mprotect.x == x)){ + (last->u.mprotect.prot == prot)){ last->u.mprotect.len += len; return 0; } @@ -115,114 +112,145 @@ static int add_mprotect(unsigned long addr, unsigned long len, int r, int w, .u = { .mprotect = { .addr = addr, .len = len, - .r = r, - .w = w, - .x = x } } }); + .prot = prot } } }); return ret; } #define ADD_ROUND(n, inc) (((n) + (inc)) & ~((inc) - 1)) +static inline int update_pte_range(pmd_t *pmd, unsigned long addr, + unsigned long end, struct host_vm_op *ops, + int last_op, int *op_index, int force, + union mm_context *mmu, void **flush, + int (*do_ops)(union mm_context *, + struct host_vm_op *, int, int, + void **)) +{ + pte_t *pte; + int r, w, x, prot, ret = 0; + + pte = pte_offset_kernel(pmd, addr); + do { + r = pte_read(*pte); + w = pte_write(*pte); + x = pte_exec(*pte); + if (!pte_young(*pte)) { + r = 0; + w = 0; + } else if (!pte_dirty(*pte)) { + w = 0; + } + prot = ((r ? UM_PROT_READ : 0) | (w ? UM_PROT_WRITE : 0) | + (x ? UM_PROT_EXEC : 0)); + if(force || pte_newpage(*pte)){ + if(pte_present(*pte)) + ret = add_mmap(addr, pte_val(*pte) & PAGE_MASK, + PAGE_SIZE, prot, ops, op_index, + last_op, mmu, flush, do_ops); + else ret = add_munmap(addr, PAGE_SIZE, ops, op_index, + last_op, mmu, flush, do_ops); + } + else if(pte_newprot(*pte)) + ret = add_mprotect(addr, PAGE_SIZE, prot, ops, op_index, + last_op, mmu, flush, do_ops); + *pte = pte_mkuptodate(*pte); + } while (pte++, addr += PAGE_SIZE, ((addr != end) && !ret)); + return ret; +} + +static inline int update_pmd_range(pud_t *pud, unsigned long addr, + unsigned long end, struct host_vm_op *ops, + int last_op, int *op_index, int force, + union mm_context *mmu, void **flush, + int (*do_ops)(union mm_context *, + struct host_vm_op *, int, int, + void **)) +{ + pmd_t *pmd; + unsigned long next; + int ret = 0; + + pmd = pmd_offset(pud, addr); + do { + next = pmd_addr_end(addr, end); + if(!pmd_present(*pmd)){ + if(force || pmd_newpage(*pmd)){ + ret = add_munmap(addr, next - addr, ops, + op_index, last_op, mmu, + flush, do_ops); + pmd_mkuptodate(*pmd); + } + } + else ret = update_pte_range(pmd, addr, next, ops, last_op, + op_index, force, mmu, flush, + do_ops); + } while (pmd++, addr = next, ((addr != end) && !ret)); + return ret; +} + +static inline int update_pud_range(pgd_t *pgd, unsigned long addr, + unsigned long end, struct host_vm_op *ops, + int last_op, int *op_index, int force, + union mm_context *mmu, void **flush, + int (*do_ops)(union mm_context *, + struct host_vm_op *, int, int, + void **)) +{ + pud_t *pud; + unsigned long next; + int ret = 0; + + pud = pud_offset(pgd, addr); + do { + next = pud_addr_end(addr, end); + if(!pud_present(*pud)){ + if(force || pud_newpage(*pud)){ + ret = add_munmap(addr, next - addr, ops, + op_index, last_op, mmu, + flush, do_ops); + pud_mkuptodate(*pud); + } + } + else ret = update_pmd_range(pud, addr, next, ops, last_op, + op_index, force, mmu, flush, + do_ops); + } while (pud++, addr = next, ((addr != end) && !ret)); + return ret; +} + void fix_range_common(struct mm_struct *mm, unsigned long start_addr, unsigned long end_addr, int force, int (*do_ops)(union mm_context *, struct host_vm_op *, int, int, void **)) { - pgd_t *npgd; - pud_t *npud; - pmd_t *npmd; - pte_t *npte; + pgd_t *pgd; union mm_context *mmu = &mm->context; - unsigned long addr, end; - int r, w, x; struct host_vm_op ops[1]; + unsigned long addr = start_addr, next; + int ret = 0, last_op = ARRAY_SIZE(ops) - 1, op_index = -1; void *flush = NULL; - int op_index = -1, last_op = ARRAY_SIZE(ops) - 1; - int ret = 0; - - if(mm == NULL) - return; ops[0].type = NONE; - for(addr = start_addr; addr < end_addr && !ret;){ - npgd = pgd_offset(mm, addr); - if(!pgd_present(*npgd)){ - end = ADD_ROUND(addr, PGDIR_SIZE); - if(end > end_addr) - end = end_addr; - if(force || pgd_newpage(*npgd)){ - ret = add_munmap(addr, end - addr, ops, - &op_index, last_op, mmu, - &flush, do_ops); - pgd_mkuptodate(*npgd); - } - addr = end; - continue; - } - - npud = pud_offset(npgd, addr); - if(!pud_present(*npud)){ - end = ADD_ROUND(addr, PUD_SIZE); - if(end > end_addr) - end = end_addr; - if(force || pud_newpage(*npud)){ - ret = add_munmap(addr, end - addr, ops, - &op_index, last_op, mmu, - &flush, do_ops); - pud_mkuptodate(*npud); - } - addr = end; - continue; - } - - npmd = pmd_offset(npud, addr); - if(!pmd_present(*npmd)){ - end = ADD_ROUND(addr, PMD_SIZE); - if(end > end_addr) - end = end_addr; - if(force || pmd_newpage(*npmd)){ - ret = add_munmap(addr, end - addr, ops, + pgd = pgd_offset(mm, addr); + do { + next = pgd_addr_end(addr, end_addr); + if(!pgd_present(*pgd)){ + if (force || pgd_newpage(*pgd)){ + ret = add_munmap(addr, next - addr, ops, &op_index, last_op, mmu, &flush, do_ops); - pmd_mkuptodate(*npmd); + pgd_mkuptodate(*pgd); } - addr = end; - continue; - } - - npte = pte_offset_kernel(npmd, addr); - r = pte_read(*npte); - w = pte_write(*npte); - x = pte_exec(*npte); - if (!pte_young(*npte)) { - r = 0; - w = 0; - } else if (!pte_dirty(*npte)) { - w = 0; - } - if(force || pte_newpage(*npte)){ - if(pte_present(*npte)) - ret = add_mmap(addr, - pte_val(*npte) & PAGE_MASK, - PAGE_SIZE, r, w, x, ops, - &op_index, last_op, mmu, - &flush, do_ops); - else ret = add_munmap(addr, PAGE_SIZE, ops, - &op_index, last_op, mmu, - &flush, do_ops); } - else if(pte_newprot(*npte)) - ret = add_mprotect(addr, PAGE_SIZE, r, w, x, ops, - &op_index, last_op, mmu, - &flush, do_ops); + else ret = update_pud_range(pgd, addr, next, ops, last_op, + &op_index, force, mmu, &flush, + do_ops); + } while (pgd++, addr = next, ((addr != end_addr) && !ret)); - *npte = pte_mkuptodate(*npte); - addr += PAGE_SIZE; - } if(!ret) ret = (*do_ops)(mmu, ops, op_index, 1, &flush); -/* This is not an else because ret is modified above */ + /* This is not an else because ret is modified above */ if(ret) { printk("fix_range_common: failed, killing current process\n"); force_sig(SIGKILL, current); @@ -343,12 +371,6 @@ pte_t *addr_pte(struct task_struct *task, unsigned long addr) return(pte_offset_map(pmd, addr)); } -void flush_tlb_page(struct vm_area_struct *vma, unsigned long address) -{ - address &= PAGE_MASK; - flush_tlb_range(vma, address, address + PAGE_SIZE); -} - void flush_tlb_all(void) { flush_tlb_mm(current->mm); diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c index 26f15c4..abab90c 100644 --- a/arch/um/kernel/trap.c +++ b/arch/um/kernel/trap.c @@ -18,8 +18,9 @@ #include "asm/current.h" #include "asm/irq.h" #include "sysdep/sigcontext.h" -#include "user_util.h" #include "kern_util.h" +#include "as-layout.h" +#include "arch.h" #include "kern.h" #include "chan_kern.h" #include "mconsole_kern.h" @@ -71,8 +72,8 @@ good_area: goto out; /* Don't require VM_READ|VM_EXEC for write faults! */ - if(!is_write && !(vma->vm_flags & (VM_READ | VM_EXEC))) - goto out; + if(!is_write && !(vma->vm_flags & (VM_READ | VM_EXEC))) + goto out; do { survive: @@ -156,20 +157,23 @@ static void segv_handler(int sig, union uml_pt_regs *regs) * the info in the regs. A pointer to the info then would * give us bad data! */ -unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user, void *sc) +unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user, + union uml_pt_regs *regs) { struct siginfo si; void *catcher; int err; - int is_write = FAULT_WRITE(fi); - unsigned long address = FAULT_ADDRESS(fi); + int is_write = FAULT_WRITE(fi); + unsigned long address = FAULT_ADDRESS(fi); - if(!is_user && (address >= start_vm) && (address < end_vm)){ - flush_tlb_kernel_vm(); - return(0); - } - else if(current->mm == NULL) - panic("Segfault with no mm"); + if(!is_user && (address >= start_vm) && (address < end_vm)){ + flush_tlb_kernel_vm(); + return 0; + } + else if(current->mm == NULL) { + show_regs(container_of(regs, struct pt_regs, regs)); + panic("Segfault with no mm"); + } if (SEGV_IS_FIXABLE(&fi) || SEGV_MAYBE_FIXABLE(&fi)) err = handle_page_fault(address, ip, is_write, is_user, &si.si_code); @@ -182,26 +186,28 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user, void *sc) catcher = current->thread.fault_catcher; if(!err) - return(0); + return 0; else if(catcher != NULL){ current->thread.fault_addr = (void *) address; do_longjmp(catcher, 1); } else if(current->thread.fault_addr != NULL) panic("fault_addr set but no fault catcher"); - else if(!is_user && arch_fixup(ip, sc)) - return(0); + else if(!is_user && arch_fixup(ip, regs)) + return 0; - if(!is_user) + if(!is_user) { + show_regs(container_of(regs, struct pt_regs, regs)); panic("Kernel mode fault at addr 0x%lx, ip 0x%lx", address, ip); + } if (err == -EACCES) { si.si_signo = SIGBUS; si.si_errno = 0; si.si_code = BUS_ADRERR; si.si_addr = (void __user *)address; - current->thread.arch.faultinfo = fi; + current->thread.arch.faultinfo = fi; force_sig_info(SIGBUS, &si, current); } else if (err == -ENOMEM) { printk("VM: killing process %s\n", current->comm); @@ -210,10 +216,10 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user, void *sc) BUG_ON(err != -EFAULT); si.si_signo = SIGSEGV; si.si_addr = (void __user *) address; - current->thread.arch.faultinfo = fi; + current->thread.arch.faultinfo = fi; force_sig_info(SIGSEGV, &si, current); } - return(0); + return 0; } void relay_signal(int sig, union uml_pt_regs *regs) @@ -223,12 +229,12 @@ void relay_signal(int sig, union uml_pt_regs *regs) if(!UPT_IS_USER(regs)){ if(sig == SIGBUS) - printk("Bus error - the /dev/shm or /tmp mount likely " - "just ran out of space\n"); + printk("Bus error - the host /dev/shm or /tmp mount " + "likely just ran out of space\n"); panic("Kernel mode signal %d", sig); } - current->thread.arch.faultinfo = *UPT_FAULTINFO(regs); + current->thread.arch.faultinfo = *UPT_FAULTINFO(regs); force_sig(sig, current); } diff --git a/arch/um/kernel/tt/exec_kern.c b/arch/um/kernel/tt/exec_kern.c index ad66df1..98e2174 100644 --- a/arch/um/kernel/tt/exec_kern.c +++ b/arch/um/kernel/tt/exec_kern.c @@ -10,7 +10,6 @@ #include "asm/uaccess.h" #include "asm/pgalloc.h" #include "asm/tlbflush.h" -#include "user_util.h" #include "kern_util.h" #include "irq_user.h" #include "mem_user.h" diff --git a/arch/um/kernel/tt/exec_user.c b/arch/um/kernel/tt/exec_user.c index a92c02f..7b5f218 100644 --- a/arch/um/kernel/tt/exec_user.c +++ b/arch/um/kernel/tt/exec_user.c @@ -10,7 +10,6 @@ #include <errno.h> #include <sys/wait.h> #include <signal.h> -#include "user_util.h" #include "kern_util.h" #include "user.h" #include "ptrace_user.h" diff --git a/arch/um/kernel/tt/gdb.c b/arch/um/kernel/tt/gdb.c index 8eba8f7..030e465 100644 --- a/arch/um/kernel/tt/gdb.c +++ b/arch/um/kernel/tt/gdb.c @@ -17,7 +17,6 @@ #include "user.h" #include "debug.h" #include "kern_util.h" -#include "user_util.h" #include "tt.h" #include "sysdep/thread.h" #include "os.h" @@ -115,6 +114,8 @@ struct gdb_data { int err; }; +extern char *linux_prog; + static void config_gdb_cb(void *arg) { struct gdb_data *data = arg; diff --git a/arch/um/kernel/tt/include/mode_kern-tt.h b/arch/um/kernel/tt/include/mode_kern-tt.h deleted file mode 100644 index 2a35b15..0000000 --- a/arch/um/kernel/tt/include/mode_kern-tt.h +++ /dev/null @@ -1,52 +0,0 @@ -/* - * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) - * Licensed under the GPL - */ - -#ifndef __TT_MODE_KERN_H__ -#define __TT_MODE_KERN_H__ - -#include "linux/sched.h" -#include "asm/page.h" -#include "asm/ptrace.h" -#include "asm/uaccess.h" - -extern void switch_to_tt(void *prev, void *next); -extern void flush_thread_tt(void); -extern void start_thread_tt(struct pt_regs *regs, unsigned long eip, - unsigned long esp); -extern int copy_thread_tt(int nr, unsigned long clone_flags, unsigned long sp, - unsigned long stack_top, struct task_struct *p, - struct pt_regs *regs); -extern void release_thread_tt(struct task_struct *task); -extern void initial_thread_cb_tt(void (*proc)(void *), void *arg); -extern void init_idle_tt(void); -extern void flush_tlb_kernel_range_tt(unsigned long start, unsigned long end); -extern void flush_tlb_kernel_vm_tt(void); -extern void __flush_tlb_one_tt(unsigned long addr); -extern void flush_tlb_range_tt(struct vm_area_struct *vma, - unsigned long start, unsigned long end); -extern void flush_tlb_mm_tt(struct mm_struct *mm); -extern void force_flush_all_tt(void); -extern long execute_syscall_tt(void *r); -extern void before_mem_tt(unsigned long brk_start); -extern unsigned long set_task_sizes_tt(int arg, unsigned long *host_size_out, - unsigned long *task_size_out); -extern int start_uml_tt(void); -extern int external_pid_tt(struct task_struct *task); -extern int thread_pid_tt(struct task_struct *task); - -#define kmem_end_tt (host_task_size - ABOVE_KMEM) - -#endif - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/tt/mem.c b/arch/um/kernel/tt/mem.c index 4d1929d..d0c3c49 100644 --- a/arch/um/kernel/tt/mem.c +++ b/arch/um/kernel/tt/mem.c @@ -8,7 +8,6 @@ #include "asm/uaccess.h" #include "mem_user.h" #include "kern_util.h" -#include "user_util.h" #include "kern.h" #include "tt.h" diff --git a/arch/um/kernel/tt/mem_user.c b/arch/um/kernel/tt/mem_user.c index 03e5898..9774f63 100644 --- a/arch/um/kernel/tt/mem_user.c +++ b/arch/um/kernel/tt/mem_user.c @@ -11,7 +11,6 @@ #include <sys/mman.h> #include "tt.h" #include "mem_user.h" -#include "user_util.h" #include "os.h" void remap_data(void *segment_start, void *segment_end, int w) diff --git a/arch/um/kernel/tt/process_kern.c b/arch/um/kernel/tt/process_kern.c index 1e86f0b..c631303 100644 --- a/arch/um/kernel/tt/process_kern.c +++ b/arch/um/kernel/tt/process_kern.c @@ -14,7 +14,6 @@ #include "asm/tlbflush.h" #include "irq_user.h" #include "kern_util.h" -#include "user_util.h" #include "os.h" #include "kern.h" #include "sigcontext.h" @@ -65,7 +64,8 @@ void switch_to_tt(void *prev, void *next) if(from->thread.mode.tt.switch_pipe[0] == -1) os_kill_process(os_getpid(), 0); - err = os_read_file(from->thread.mode.tt.switch_pipe[0], &c, sizeof(c)); + err = os_read_file(from->thread.mode.tt.switch_pipe[0], &c, + sizeof(c)); if(err != sizeof(c)) panic("read of switch_pipe failed, errno = %d", -err); diff --git a/arch/um/kernel/tt/ptproxy/proxy.c b/arch/um/kernel/tt/ptproxy/proxy.c index 58800c5..420c23f3 100644 --- a/arch/um/kernel/tt/ptproxy/proxy.c +++ b/arch/um/kernel/tt/ptproxy/proxy.c @@ -26,7 +26,6 @@ Jeff Dike (jdike@karaya.com) : Modified for integration into uml #include "sysdep.h" #include "wait.h" -#include "user_util.h" #include "user.h" #include "os.h" #include "tempfile.h" @@ -339,11 +338,12 @@ int start_debugger(char *prog, int startup, int stop, int *fd_out) "err = %d\n", -fd); exit(1); } - os_write_file(fd, gdb_init_string, sizeof(gdb_init_string) - 1); + os_write_file(fd, gdb_init_string, + sizeof(gdb_init_string) - 1); if(startup){ if(stop){ os_write_file(fd, "b start_kernel\n", - strlen("b start_kernel\n")); + strlen("b start_kernel\n")); } os_write_file(fd, "c\n", strlen("c\n")); } diff --git a/arch/um/kernel/tt/ptproxy/ptrace.c b/arch/um/kernel/tt/ptproxy/ptrace.c index 0377442..4b4f617 100644 --- a/arch/um/kernel/tt/ptproxy/ptrace.c +++ b/arch/um/kernel/tt/ptproxy/ptrace.c @@ -16,7 +16,6 @@ Jeff Dike (jdike@karaya.com) : Modified for integration into uml #include "ptproxy.h" #include "debug.h" -#include "user_util.h" #include "kern_util.h" #include "ptrace_user.h" #include "tt.h" diff --git a/arch/um/kernel/tt/ptproxy/sysdep.c b/arch/um/kernel/tt/ptproxy/sysdep.c index 99f1783..e0e1ab0 100644 --- a/arch/um/kernel/tt/ptproxy/sysdep.c +++ b/arch/um/kernel/tt/ptproxy/sysdep.c @@ -13,7 +13,6 @@ terms and conditions. #include <sys/types.h> #include <linux/unistd.h> #include "ptrace_user.h" -#include "user_util.h" #include "user.h" #include "os.h" diff --git a/arch/um/kernel/tt/ptproxy/wait.c b/arch/um/kernel/tt/ptproxy/wait.c index 12f6319..bdd4af4 100644 --- a/arch/um/kernel/tt/ptproxy/wait.c +++ b/arch/um/kernel/tt/ptproxy/wait.c @@ -13,7 +13,6 @@ terms and conditions. #include "ptproxy.h" #include "sysdep.h" #include "wait.h" -#include "user_util.h" #include "ptrace_user.h" #include "sysdep/ptrace.h" #include "sysdep/sigcontext.h" diff --git a/arch/um/kernel/tt/syscall_user.c b/arch/um/kernel/tt/syscall_user.c index 902987b..f52b47a 100644 --- a/arch/um/kernel/tt/syscall_user.c +++ b/arch/um/kernel/tt/syscall_user.c @@ -11,7 +11,6 @@ #include "sigcontext.h" #include "ptrace_user.h" #include "task.h" -#include "user_util.h" #include "kern_util.h" #include "syscall.h" #include "tt.h" diff --git a/arch/um/kernel/tt/tlb.c b/arch/um/kernel/tt/tlb.c index ae6217c..7caa24f 100644 --- a/arch/um/kernel/tt/tlb.c +++ b/arch/um/kernel/tt/tlb.c @@ -12,7 +12,6 @@ #include "asm/pgtable.h" #include "asm/uaccess.h" #include "asm/tlbflush.h" -#include "user_util.h" #include "mem_user.h" #include "os.h" #include "tlb.h" diff --git a/arch/um/kernel/tt/tracer.c b/arch/um/kernel/tt/tracer.c index b919535..c235883 100644 --- a/arch/um/kernel/tt/tracer.c +++ b/arch/um/kernel/tt/tracer.c @@ -19,7 +19,6 @@ #include "sigcontext.h" #include "sysdep/sigcontext.h" #include "os.h" -#include "user_util.h" #include "mem_user.h" #include "process.h" #include "kern_util.h" diff --git a/arch/um/kernel/tt/trap_user.c b/arch/um/kernel/tt/trap_user.c index b5d9d64..3032eb5 100644 --- a/arch/um/kernel/tt/trap_user.c +++ b/arch/um/kernel/tt/trap_user.c @@ -8,7 +8,6 @@ #include <signal.h> #include "sysdep/ptrace.h" #include "sysdep/sigcontext.h" -#include "user_util.h" #include "kern_util.h" #include "task.h" #include "tt.h" diff --git a/arch/um/kernel/tt/uaccess_user.c b/arch/um/kernel/tt/uaccess_user.c index ed1abcf..0e5c82c 100644 --- a/arch/um/kernel/tt/uaccess_user.c +++ b/arch/um/kernel/tt/uaccess_user.c @@ -5,7 +5,6 @@ */ #include <string.h> -#include "user_util.h" #include "uml_uaccess.h" #include "task.h" #include "kern_util.h" diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c index 89c6dba..1cf954a 100644 --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -17,6 +17,7 @@ #include "linux/seq_file.h" #include "linux/delay.h" #include "linux/module.h" +#include "linux/utsname.h" #include "asm/page.h" #include "asm/pgtable.h" #include "asm/ptrace.h" @@ -25,8 +26,9 @@ #include "asm/setup.h" #include "ubd_user.h" #include "asm/current.h" -#include "user_util.h" #include "kern_util.h" +#include "as-layout.h" +#include "arch.h" #include "kern.h" #include "mem_user.h" #include "mem.h" @@ -42,7 +44,7 @@ #define DEFAULT_COMMAND_LINE "root=98:0" -/* Changed in linux_main and setup_arch, which run before SMP is started */ +/* Changed in add_arg and setup_arch, which run before SMP is started */ static char __initdata command_line[COMMAND_LINE_SIZE] = { 0 }; static void __init add_arg(char *arg) @@ -56,17 +58,25 @@ static void __init add_arg(char *arg) strcat(command_line, arg); } -struct cpuinfo_um boot_cpu_data = { +/* + * These fields are initialized at boot time and not changed. + * XXX This structure is used only in the non-SMP case. Maybe this + * should be moved to smp.c. + */ +struct cpuinfo_um boot_cpu_data = { .loops_per_jiffy = 0, .ipi_pipe = { -1, -1 } }; unsigned long thread_saved_pc(struct task_struct *task) { - return(os_process_pc(CHOOSE_MODE_PROC(thread_pid_tt, thread_pid_skas, - task))); + return os_process_pc(CHOOSE_MODE_PROC(thread_pid_tt, thread_pid_skas, + task)); } +/* Changed in setup_arch, which is called in early boot */ +static char host_info[(__NEW_UTS_LEN + 1) * 5]; + static int show_cpuinfo(struct seq_file *m, void *v) { int index = 0; @@ -86,7 +96,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) loops_per_jiffy/(500000/HZ), (loops_per_jiffy/(5000/HZ)) % 100); - return(0); + return 0; } static void *c_start(struct seq_file *m, loff_t *pos) @@ -114,14 +124,12 @@ const struct seq_operations cpuinfo_op = { /* Set in linux_main */ unsigned long host_task_size; unsigned long task_size; - -unsigned long uml_start; - -/* Set in early boot */ unsigned long uml_physmem; -unsigned long uml_reserved; +unsigned long uml_reserved; /* Also modified in mem_init */ unsigned long start_vm; unsigned long end_vm; + +/* Set in uml_ncpus_setup */ int ncpus = 1; #ifdef CONFIG_CMDLINE_ON_HOST @@ -135,6 +143,8 @@ static char *argv1_end = NULL; /* Set in early boot */ static int have_root __initdata = 0; + +/* Set in uml_mem_setup and modified in linux_main */ long long physmem_size = 32 * 1024 * 1024; void set_cmdline(char *cmd) @@ -212,12 +222,12 @@ __uml_setup("debug", no_skas_debug_setup, #ifdef CONFIG_SMP static int __init uml_ncpus_setup(char *line, int *add) { - if (!sscanf(line, "%d", &ncpus)) { - printf("Couldn't parse [%s]\n", line); - return -1; - } + if (!sscanf(line, "%d", &ncpus)) { + printf("Couldn't parse [%s]\n", line); + return -1; + } - return 0; + return 0; } __uml_setup("ncpus=", uml_ncpus_setup, @@ -234,7 +244,7 @@ static int force_tt = 0; static int __init mode_tt_setup(char *line, int *add) { force_tt = 1; - return(0); + return 0; } #else @@ -245,7 +255,7 @@ static int __init mode_tt_setup(char *line, int *add) static int __init mode_tt_setup(char *line, int *add) { printf("CONFIG_MODE_TT disabled - 'mode=tt' ignored\n"); - return(0); + return 0; } #else @@ -256,7 +266,7 @@ static int __init mode_tt_setup(char *line, int *add) static int __init mode_tt_setup(char *line, int *add) { printf("CONFIG_MODE_SKAS disabled - 'mode=tt' redundant\n"); - return(0); + return 0; } #endif @@ -274,16 +284,15 @@ int mode_tt = DEFAULT_TT; static int __init Usage(char *line, int *add) { - const char **p; + const char **p; printf(usage_string, init_utsname()->release); - p = &__uml_help_start; - while (p < &__uml_help_end) { - printf("%s", *p); - p++; - } + p = &__uml_help_start; + while (p < &__uml_help_end) { + printf("%s", *p); + p++; + } exit(0); - return 0; } @@ -374,13 +383,12 @@ int __init linux_main(int argc, char **argv) printf("UML running in %s mode\n", mode); - uml_start = (unsigned long) &__binary_start; host_task_size = CHOOSE_MODE_PROC(set_task_sizes_tt, set_task_sizes_skas, &task_size); /* - * Setting up handlers to 'sig_info' struct - */ + * Setting up handlers to 'sig_info' struct + */ os_fill_handlinfo(handlinfo_kern); brk_start = (unsigned long) sbrk(0); @@ -396,7 +404,7 @@ int __init linux_main(int argc, char **argv) physmem_size += UML_ROUND_UP(brk_start) - UML_ROUND_UP(&_end); } - uml_physmem = uml_start & PAGE_MASK; + uml_physmem = (unsigned long) &__binary_start & PAGE_MASK; /* Reserve up to 4M after the current brk */ uml_reserved = ROUND_4M(brk_start) + (1 << 22); @@ -407,7 +415,7 @@ int __init linux_main(int argc, char **argv) argv1_begin = argv[1]; argv1_end = &argv[1][strlen(argv[1])]; #endif - + highmem = 0; iomem_size = (iomem_size + PAGE_SIZE - 1) & PAGE_MASK; max_physmem = get_kmem_end() - uml_physmem - iomem_size - MIN_VMALLOC; @@ -449,12 +457,12 @@ int __init linux_main(int argc, char **argv) printf("Kernel virtual memory size shrunk to %lu bytes\n", virtmem_size); - uml_postsetup(); + uml_postsetup(); task_protections((unsigned long) &init_thread_info); os_flush_stdout(); - return(CHOOSE_MODE(start_uml_tt(), start_uml_skas())); + return CHOOSE_MODE(start_uml_tt(), start_uml_skas()); } extern int uml_exitcode; @@ -466,8 +474,8 @@ static int panic_exit(struct notifier_block *self, unsigned long unused1, show_regs(&(current->thread.regs)); bust_spinlocks(0); uml_exitcode = 1; - machine_halt(); - return(0); + os_dump_core(); + return 0; } static struct notifier_block panic_exit_notifier = { @@ -482,14 +490,14 @@ void __init setup_arch(char **cmdline_p) &panic_exit_notifier); paging_init(); strlcpy(boot_command_line, command_line, COMMAND_LINE_SIZE); - *cmdline_p = command_line; - setup_hostinfo(); + *cmdline_p = command_line; + setup_hostinfo(host_info, sizeof host_info); } void __init check_bugs(void) { arch_check_bugs(); - os_check_bugs(); + os_check_bugs(); } void apply_alternatives(struct alt_instr *start, struct alt_instr *end) diff --git a/arch/um/os-Linux/aio.c b/arch/um/os-Linux/aio.c index 6ff1274..9bf944f 100644 --- a/arch/um/os-Linux/aio.c +++ b/arch/um/os-Linux/aio.c @@ -132,10 +132,10 @@ static int aio_thread(void *arg) { .data = (void *) (long) event.data, .err = event.res }); reply_fd = ((struct aio_context *) reply.data)->reply_fd; - err = os_write_file(reply_fd, &reply, sizeof(reply)); + err = write(reply_fd, &reply, sizeof(reply)); if(err != sizeof(reply)) printk("aio_thread - write failed, fd = %d, " - "err = %d\n", reply_fd, -err); + "err = %d\n", reply_fd, errno); } } return 0; @@ -146,38 +146,31 @@ static int aio_thread(void *arg) static int do_not_aio(struct aio_thread_req *req) { char c; - int err; + unsigned long long actual; + int n; + + actual = lseek64(req->io_fd, req->offset, SEEK_SET); + if(actual != req->offset) + return -errno; switch(req->type){ case AIO_READ: - err = os_seek_file(req->io_fd, req->offset); - if(err) - goto out; - - err = os_read_file(req->io_fd, req->buf, req->len); + n = read(req->io_fd, req->buf, req->len); break; case AIO_WRITE: - err = os_seek_file(req->io_fd, req->offset); - if(err) - goto out; - - err = os_write_file(req->io_fd, req->buf, req->len); + n = write(req->io_fd, req->buf, req->len); break; case AIO_MMAP: - err = os_seek_file(req->io_fd, req->offset); - if(err) - goto out; - - err = os_read_file(req->io_fd, &c, sizeof(c)); + n = read(req->io_fd, &c, sizeof(c)); break; default: printk("do_not_aio - bad request type : %d\n", req->type); - err = -EINVAL; - break; + return -EINVAL; } -out: - return err; + if(n < 0) + return -errno; + return 0; } /* These are initialized in initcalls and not changed */ @@ -193,12 +186,12 @@ static int not_aio_thread(void *arg) signal(SIGWINCH, SIG_IGN); while(1){ - err = os_read_file(aio_req_fd_r, &req, sizeof(req)); + err = read(aio_req_fd_r, &req, sizeof(req)); if(err != sizeof(req)){ if(err < 0) printk("not_aio_thread - read failed, " "fd = %d, err = %d\n", aio_req_fd_r, - -err); + errno); else { printk("not_aio_thread - short read, fd = %d, " "length = %d\n", aio_req_fd_r, err); @@ -207,11 +200,11 @@ static int not_aio_thread(void *arg) } err = do_not_aio(&req); reply = ((struct aio_thread_reply) { .data = req.aio, - .err = err }); - err = os_write_file(req.aio->reply_fd, &reply, sizeof(reply)); + .err = err }); + err = write(req.aio->reply_fd, &reply, sizeof(reply)); if(err != sizeof(reply)) printk("not_aio_thread - write failed, fd = %d, " - "err = %d\n", req.aio->reply_fd, -err); + "err = %d\n", req.aio->reply_fd, errno); } return 0; @@ -228,6 +221,11 @@ static int init_aio_24(void) aio_req_fd_w = fds[0]; aio_req_fd_r = fds[1]; + + err = os_set_fd_block(aio_req_fd_w, 0); + if(err) + goto out_close_pipe; + err = run_helper_thread(not_aio_thread, NULL, CLONE_FILES | CLONE_VM | SIGCHLD, &stack, 0); if(err < 0) @@ -285,10 +283,12 @@ static int submit_aio_26(enum aio_type type, int io_fd, char *buf, int len, if(err){ reply = ((struct aio_thread_reply) { .data = aio, .err = err }); - err = os_write_file(aio->reply_fd, &reply, sizeof(reply)); - if(err != sizeof(reply)) + err = write(aio->reply_fd, &reply, sizeof(reply)); + if(err != sizeof(reply)){ + err = -errno; printk("submit_aio_26 - write failed, " "fd = %d, err = %d\n", aio->reply_fd, -err); + } else err = 0; } @@ -383,9 +383,10 @@ static int submit_aio_24(enum aio_type type, int io_fd, char *buf, int len, }; int err; - err = os_write_file(aio_req_fd_w, &req, sizeof(req)); + err = write(aio_req_fd_w, &req, sizeof(req)); if(err == sizeof(req)) err = 0; + else err = -errno; return err; } diff --git a/arch/um/os-Linux/drivers/ethertap_user.c b/arch/um/os-Linux/drivers/ethertap_user.c index 863981b..acba301 100644 --- a/arch/um/os-Linux/drivers/ethertap_user.c +++ b/arch/um/os-Linux/drivers/ethertap_user.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and + * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and * James Leu (jleu@mindspring.net). * Copyright (C) 2001 by various other people who didn't put their name here. * Licensed under the GPL. @@ -16,19 +16,20 @@ #include <net/if.h> #include "user.h" #include "kern_util.h" -#include "user_util.h" #include "net_user.h" #include "etap.h" #include "os.h" #include "um_malloc.h" +#include "kern_constants.h" #define MAX_PACKET ETH_MAX_PACKET -void etap_user_init(void *data, void *dev) +static int etap_user_init(void *data, void *dev) { struct ethertap_data *pri = data; pri->dev = dev; + return 0; } struct addr_change { @@ -47,13 +48,16 @@ static void etap_change(int op, unsigned char *addr, unsigned char *netmask, change.what = op; memcpy(change.addr, addr, sizeof(change.addr)); memcpy(change.netmask, netmask, sizeof(change.netmask)); - n = os_write_file(fd, &change, sizeof(change)); - if(n != sizeof(change)) - printk("etap_change - request failed, err = %d\n", -n); - output = um_kmalloc(page_size()); + CATCH_EINTR(n = write(fd, &change, sizeof(change))); + if(n != sizeof(change)){ + printk("etap_change - request failed, err = %d\n", errno); + return; + } + + output = um_kmalloc(UM_KERN_PAGE_SIZE); if(output == NULL) printk("etap_change : Failed to allocate output buffer\n"); - read_output(fd, output, page_size()); + read_output(fd, output, UM_KERN_PAGE_SIZE); if(output != NULL){ printk("%s", output); kfree(output); @@ -115,13 +119,15 @@ static int etap_tramp(char *dev, char *gate, int control_me, pe_data.data_me = data_me; pid = run_helper(etap_pre_exec, &pe_data, args, NULL); - if(pid < 0) err = pid; + if(pid < 0) + err = pid; os_close_file(data_remote); os_close_file(control_remote); - n = os_read_file(control_me, &c, sizeof(c)); + CATCH_EINTR(n = read(control_me, &c, sizeof(c))); if(n != sizeof(c)){ - printk("etap_tramp : read of status failed, err = %d\n", -n); - return(-EINVAL); + err = -errno; + printk("etap_tramp : read of status failed, err = %d\n", -err); + return err; } if(c != 1){ printk("etap_tramp : uml_net failed\n"); @@ -132,7 +138,7 @@ static int etap_tramp(char *dev, char *gate, int control_me, else if(!WIFEXITED(status) || (WEXITSTATUS(status) != 1)) printk("uml_net didn't exit with status 1\n"); } - return(err); + return err; } static int etap_open(void *data) @@ -142,23 +148,24 @@ static int etap_open(void *data) int data_fds[2], control_fds[2], err, output_len; err = tap_open_common(pri->dev, pri->gate_addr); - if(err) return(err); + if(err) + return err; err = os_pipe(data_fds, 0, 0); if(err < 0){ printk("data os_pipe failed - err = %d\n", -err); - return(err); + return err; } err = os_pipe(control_fds, 1, 0); if(err < 0){ printk("control os_pipe failed - err = %d\n", -err); - return(err); + return err; } - + err = etap_tramp(pri->dev_name, pri->gate_addr, control_fds[0], control_fds[1], data_fds[0], data_fds[1]); - output_len = page_size(); + output_len = UM_KERN_PAGE_SIZE; output = um_kmalloc(output_len); read_output(control_fds[0], output, output_len); @@ -171,13 +178,13 @@ static int etap_open(void *data) if(err < 0){ printk("etap_tramp failed - err = %d\n", -err); - return(err); + return err; } pri->data_fd = data_fds[0]; pri->control_fd = control_fds[0]; iter_addresses(pri->dev, etap_open_addr, &pri->control_fd); - return(data_fds[0]); + return data_fds[0]; } static void etap_close(int fd, void *data) @@ -195,7 +202,7 @@ static void etap_close(int fd, void *data) static int etap_set_mtu(int mtu, void *data) { - return(mtu); + return mtu; } static void etap_add_addr(unsigned char *addr, unsigned char *netmask, @@ -204,7 +211,8 @@ static void etap_add_addr(unsigned char *addr, unsigned char *netmask, struct ethertap_data *pri = data; tap_check_ips(pri->gate_addr, addr); - if(pri->control_fd == -1) return; + if(pri->control_fd == -1) + return; etap_open_addr(addr, netmask, &pri->control_fd); } @@ -213,7 +221,8 @@ static void etap_del_addr(unsigned char *addr, unsigned char *netmask, { struct ethertap_data *pri = data; - if(pri->control_fd == -1) return; + if(pri->control_fd == -1) + return; etap_close_addr(addr, netmask, &pri->control_fd); } @@ -227,14 +236,3 @@ const struct net_user_info ethertap_user_info = { .delete_address = etap_del_addr, .max_packet = MAX_PACKET - ETH_HEADER_ETHERTAP }; - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c index e846b23..11a9779 100644 --- a/arch/um/os-Linux/drivers/tuntap_user.c +++ b/arch/um/os-Linux/drivers/tuntap_user.c @@ -18,17 +18,17 @@ #include "net_user.h" #include "tuntap.h" #include "kern_util.h" -#include "user_util.h" #include "user.h" #include "os.h" #define MAX_PACKET ETH_MAX_PACKET -void tuntap_user_init(void *data, void *dev) +static int tuntap_user_init(void *data, void *dev) { struct tuntap_data *pri = data; pri->dev = dev; + return 0; } static void tuntap_add_addr(unsigned char *addr, unsigned char *netmask, @@ -37,7 +37,8 @@ static void tuntap_add_addr(unsigned char *addr, unsigned char *netmask, struct tuntap_data *pri = data; tap_check_ips(pri->gate_addr, addr); - if((pri->fd == -1) || pri->fixed_config) return; + if((pri->fd == -1) || pri->fixed_config) + return; open_addr(addr, netmask, pri->dev_name); } @@ -46,7 +47,8 @@ static void tuntap_del_addr(unsigned char *addr, unsigned char *netmask, { struct tuntap_data *pri = data; - if((pri->fd == -1) || pri->fixed_config) return; + if((pri->fd == -1) || pri->fixed_config) + return; close_addr(addr, netmask, pri->dev_name); } @@ -58,7 +60,7 @@ struct tuntap_pre_exec_data { static void tuntap_pre_exec(void *arg) { struct tuntap_pre_exec_data *data = arg; - + dup2(data->stdout, 1); os_close_file(data->close_me); } @@ -83,7 +85,8 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote, pid = run_helper(tuntap_pre_exec, &data, argv, NULL); - if(pid < 0) return(-pid); + if(pid < 0) + return -pid; os_close_file(remote); @@ -114,16 +117,16 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote, cmsg = CMSG_FIRSTHDR(&msg); if(cmsg == NULL){ printk("tuntap_open_tramp : didn't receive a message\n"); - return(-EINVAL); + return -EINVAL; } if((cmsg->cmsg_level != SOL_SOCKET) || (cmsg->cmsg_type != SCM_RIGHTS)){ printk("tuntap_open_tramp : didn't receive a descriptor\n"); - return(-EINVAL); + return -EINVAL; } *fd_out = ((int *) CMSG_DATA(cmsg))[0]; os_set_exec_close(*fd_out, 1); - return(0); + return 0; } static int tuntap_open(void *data) @@ -135,7 +138,7 @@ static int tuntap_open(void *data) err = tap_open_common(pri->dev, pri->gate_addr); if(err < 0) - return(err); + return err; if(pri->fixed_config){ pri->fd = os_open_file("/dev/net/tun", @@ -143,7 +146,7 @@ static int tuntap_open(void *data) if(pri->fd < 0){ printk("Failed to open /dev/net/tun, err = %d\n", -pri->fd); - return(pri->fd); + return pri->fd; } memset(&ifr, 0, sizeof(ifr)); ifr.ifr_flags = IFF_TAP | IFF_NO_PI; @@ -160,7 +163,7 @@ static int tuntap_open(void *data) if(err < 0){ printk("tuntap_open : os_pipe failed - err = %d\n", -err); - return(err); + return err; } buffer = get_output_buffer(&len); @@ -175,7 +178,7 @@ static int tuntap_open(void *data) printk("%s", output); free_output_buffer(buffer); printk("tuntap_open_tramp failed - err = %d\n", -err); - return(err); + return err; } pri->dev_name = uml_strdup(buffer); @@ -187,7 +190,7 @@ static int tuntap_open(void *data) iter_addresses(pri->dev, open_addr, pri->dev_name); } - return(pri->fd); + return pri->fd; } static void tuntap_close(int fd, void *data) @@ -202,7 +205,7 @@ static void tuntap_close(int fd, void *data) static int tuntap_set_mtu(int mtu, void *data) { - return(mtu); + return mtu; } const struct net_user_info tuntap_user_info = { @@ -215,14 +218,3 @@ const struct net_user_info tuntap_user_info = { .delete_address = tuntap_del_addr, .max_packet = MAX_PACKET }; - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c index 371b433..6f92f73 100644 --- a/arch/um/os-Linux/file.c +++ b/arch/um/os-Linux/file.c @@ -18,7 +18,6 @@ #include "os.h" #include "user.h" #include "kern_util.h" -#include "user_util.h" static void copy_stat(struct uml_stat *dst, struct stat64 *src) { @@ -291,54 +290,22 @@ int os_seek_file(int fd, __u64 offset) return 0; } -static int fault_buffer(void *start, int len, - int (*copy_proc)(void *addr, void *buf, int len)) -{ - int page = getpagesize(), i; - char c; - - for(i = 0; i < len; i += page){ - if((*copy_proc)(start + i, &c, sizeof(c))) - return -EFAULT; - } - if((len % page) != 0){ - if((*copy_proc)(start + len - 1, &c, sizeof(c))) - return -EFAULT; - } - return 0; -} - -static int file_io(int fd, void *buf, int len, - int (*io_proc)(int fd, void *buf, int len), - int (*copy_user_proc)(void *addr, void *buf, int len)) +int os_read_file(int fd, void *buf, int len) { - int n, err; - - do { - n = (*io_proc)(fd, buf, len); - if((n < 0) && (errno == EFAULT)){ - err = fault_buffer(buf, len, copy_user_proc); - if(err) - return err; - n = (*io_proc)(fd, buf, len); - } - } while((n < 0) && (errno == EINTR)); + int n = read(fd, buf, len); if(n < 0) return -errno; return n; } -int os_read_file(int fd, void *buf, int len) -{ - return file_io(fd, buf, len, (int (*)(int, void *, int)) read, - copy_from_user_proc); -} - int os_write_file(int fd, const void *buf, int len) { - return file_io(fd, (void *) buf, len, - (int (*)(int, void *, int)) write, copy_to_user_proc); + int n = write(fd, (void *) buf, len); + + if(n < 0) + return -errno; + return n; } int os_file_size(char *file, unsigned long long *size_out) diff --git a/arch/um/os-Linux/helper.c b/arch/um/os-Linux/helper.c index c7ad630..97bed16 100644 --- a/arch/um/os-Linux/helper.c +++ b/arch/um/os-Linux/helper.c @@ -13,9 +13,9 @@ #include <sys/wait.h> #include "user.h" #include "kern_util.h" -#include "user_util.h" #include "os.h" #include "um_malloc.h" +#include "kern_constants.h" struct helper_data { void (*pre_exec)(void*); @@ -25,28 +25,18 @@ struct helper_data { char *buf; }; -/* Debugging aid, changed only from gdb */ -int helper_pause = 0; - -static void helper_hup(int sig) -{ -} - static int helper_child(void *arg) { struct helper_data *data = arg; char **argv = data->argv; int errval; - if (helper_pause){ - signal(SIGHUP, helper_hup); - pause(); - } if (data->pre_exec != NULL) (*data->pre_exec)(data->pre_data); errval = execvp_noalloc(data->buf, argv[0], argv); - printk("helper_child - execvp of '%s' failed - errno = %d\n", argv[0], -errval); - os_write_file(data->fd, &errval, sizeof(errval)); + printk("helper_child - execvp of '%s' failed - errno = %d\n", argv[0], + -errval); + write(data->fd, &errval, sizeof(errval)); kill(os_getpid(), SIGKILL); return 0; } @@ -81,7 +71,7 @@ int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv, goto out_close; } - sp = stack + page_size() - sizeof(void *); + sp = stack + UM_KERN_PAGE_SIZE - sizeof(void *); data.pre_exec = pre_exec; data.pre_data = pre_data; data.argv = argv; @@ -98,13 +88,16 @@ int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv, close(fds[1]); fds[1] = -1; - /* Read the errno value from the child, if the exec failed, or get 0 if - * the exec succeeded because the pipe fd was set as close-on-exec. */ - n = os_read_file(fds[0], &ret, sizeof(ret)); + /* + * Read the errno value from the child, if the exec failed, or get 0 if + * the exec succeeded because the pipe fd was set as close-on-exec. + */ + n = read(fds[0], &ret, sizeof(ret)); if (n == 0) { ret = pid; } else { if (n < 0) { + n = -errno; printk("run_helper : read on pipe failed, ret = %d\n", -n); ret = n; @@ -135,7 +128,7 @@ int run_helper_thread(int (*proc)(void *), void *arg, unsigned int flags, if (stack == 0) return -ENOMEM; - sp = stack + (page_size() << stack_order) - sizeof(void *); + sp = stack + (UM_KERN_PAGE_SIZE << stack_order) - sizeof(void *); pid = clone(proc, (void *) sp, flags | SIGCHLD, arg); if (pid < 0) { err = -errno; diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c index d1b61d4..a633fa8 100644 --- a/arch/um/os-Linux/irq.c +++ b/arch/um/os-Linux/irq.c @@ -11,7 +11,6 @@ #include <sys/poll.h> #include <sys/types.h> #include <sys/time.h> -#include "user_util.h" #include "kern_util.h" #include "user.h" #include "process.h" diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c index 685feaa..ea9a236 100644 --- a/arch/um/os-Linux/main.c +++ b/arch/um/os-Linux/main.c @@ -13,8 +13,8 @@ #include <sys/mman.h> #include <sys/user.h> #include <asm/page.h> -#include "user_util.h" #include "kern_util.h" +#include "as-layout.h" #include "mem_user.h" #include "irq_user.h" #include "user.h" @@ -25,12 +25,7 @@ #include "os.h" #include "um_malloc.h" -/* Set in set_stklim, which is called from main and __wrap_malloc. - * __wrap_malloc only calls it if main hasn't started. - */ -unsigned long stacksizelim; - -/* Set in main */ +/* Set in main, unchanged thereafter */ char *linux_prog; #define PGD_BOUND (4 * 1024 * 1024) @@ -52,7 +47,6 @@ static void set_stklim(void) exit(1); } } - stacksizelim = (lim.rlim_cur + PGD_BOUND - 1) & ~(PGD_BOUND - 1); } static __init void do_uml_initcalls(void) @@ -126,7 +120,7 @@ extern int uml_exitcode; extern void scan_elf_aux( char **envp); -int main(int argc, char **argv, char **envp) +int __init main(int argc, char **argv, char **envp) { char **new_argv; int ret, i, err; @@ -224,7 +218,7 @@ int main(int argc, char **argv, char **envp) ret = 1; } printf("\n"); - return(uml_exitcode); + return uml_exitcode; } #define CAN_KMALLOC() \ @@ -237,7 +231,7 @@ void *__wrap_malloc(int size) void *ret; if(!CAN_KMALLOC()) - return(__real_malloc(size)); + return __real_malloc(size); else if(size <= PAGE_SIZE) /* finding contiguos pages can be hard*/ ret = um_kmalloc(size); else ret = um_vmalloc(size); @@ -248,16 +242,17 @@ void *__wrap_malloc(int size) if(ret == NULL) errno = ENOMEM; - return(ret); + return ret; } void *__wrap_calloc(int n, int size) { void *ptr = __wrap_malloc(n * size); - if(ptr == NULL) return(NULL); + if(ptr == NULL) + return NULL; memset(ptr, 0, n * size); - return(ptr); + return ptr; } extern void __real_free(void *); diff --git a/arch/um/os-Linux/mem.c b/arch/um/os-Linux/mem.c index f1ea169..c6378c6 100644 --- a/arch/um/os-Linux/mem.c +++ b/arch/um/os-Linux/mem.c @@ -11,7 +11,6 @@ #include <sys/statfs.h> #include "kern_util.h" #include "user.h" -#include "user_util.h" #include "mem_user.h" #include "init.h" #include "os.h" @@ -165,7 +164,8 @@ found: * (file: kernel/tt/ptproxy/proxy.c, proc: start_debugger). * So it isn't 'static' yet. */ -int make_tempfile(const char *template, char **out_tempname, int do_unlink) +int __init make_tempfile(const char *template, char **out_tempname, + int do_unlink) { char *tempname; int fd; @@ -206,7 +206,7 @@ out: * This proc is used in start_up.c * So it isn't 'static'. */ -int create_tmp_file(unsigned long long len) +int __init create_tmp_file(unsigned long long len) { int fd, err; char zero; @@ -232,17 +232,16 @@ int create_tmp_file(unsigned long long len) zero = 0; - err = os_write_file(fd, &zero, 1); + err = write(fd, &zero, 1); if(err != 1){ - errno = -err; - perror("os_write_file"); + perror("write"); exit(1); } return fd; } -int create_mem_file(unsigned long long len) +int __init create_mem_file(unsigned long long len) { int err, fd; @@ -257,7 +256,7 @@ int create_mem_file(unsigned long long len) } -void check_tmpexec(void) +void __init check_tmpexec(void) { void *addr; int err, fd = create_tmp_file(UM_KERN_PAGE_SIZE); diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c index 76bdd67..92a7b59 100644 --- a/arch/um/os-Linux/process.c +++ b/arch/um/os-Linux/process.c @@ -14,7 +14,6 @@ #include "ptrace_user.h" #include "os.h" #include "user.h" -#include "user_util.h" #include "process.h" #include "irq_user.h" #include "kern_util.h" @@ -22,6 +21,7 @@ #include "skas_ptrace.h" #include "kern_constants.h" #include "uml-config.h" +#include "init.h" #define ARBITRARY_ADDR -1 #define FAILURE_PID -1 @@ -40,14 +40,14 @@ unsigned long os_process_pc(int pid) if(fd < 0){ printk("os_process_pc - couldn't open '%s', err = %d\n", proc_stat, -fd); - return(ARBITRARY_ADDR); + return ARBITRARY_ADDR; } - err = os_read_file(fd, buf, sizeof(buf)); + CATCH_EINTR(err = read(fd, buf, sizeof(buf))); if(err < 0){ printk("os_process_pc - couldn't read '%s', err = %d\n", - proc_stat, -err); + proc_stat, errno); os_close_file(fd); - return(ARBITRARY_ADDR); + return ARBITRARY_ADDR; } os_close_file(fd); pc = ARBITRARY_ADDR; @@ -56,7 +56,7 @@ unsigned long os_process_pc(int pid) "%*d %*d %*d %*d %*d %lu", &pc) != 1){ printk("os_process_pc - couldn't find pc in '%s'\n", buf); } - return(pc); + return pc; } int os_process_parent(int pid) @@ -65,21 +65,22 @@ int os_process_parent(int pid) char data[256]; int parent, n, fd; - if(pid == -1) return(-1); + if(pid == -1) + return -1; snprintf(stat, sizeof(stat), "/proc/%d/stat", pid); fd = os_open_file(stat, of_read(OPENFLAGS()), 0); if(fd < 0){ printk("Couldn't open '%s', err = %d\n", stat, -fd); - return(FAILURE_PID); + return FAILURE_PID; } - n = os_read_file(fd, data, sizeof(data)); + CATCH_EINTR(n = read(fd, data, sizeof(data))); os_close_file(fd); if(n < 0){ - printk("Couldn't read '%s', err = %d\n", stat, -n); - return(FAILURE_PID); + printk("Couldn't read '%s', err = %d\n", stat, errno); + return FAILURE_PID; } parent = FAILURE_PID; @@ -87,7 +88,7 @@ int os_process_parent(int pid) if(n != 1) printk("Failed to scan '%s'\n", data); - return(parent); + return parent; } void os_stop_process(int pid) @@ -145,7 +146,7 @@ void os_usr1_process(int pid) int os_getpid(void) { - return(syscall(__NR_getpid)); + return syscall(__NR_getpid); } int os_getpgrp(void) @@ -165,8 +166,8 @@ int os_map_memory(void *virt, int fd, unsigned long long off, unsigned long len, loc = mmap64((void *) virt, len, prot, MAP_SHARED | MAP_FIXED, fd, off); if(loc == MAP_FAILED) - return(-errno); - return(0); + return -errno; + return 0; } int os_protect_memory(void *addr, unsigned long len, int r, int w, int x) @@ -175,8 +176,8 @@ int os_protect_memory(void *addr, unsigned long len, int r, int w, int x) (x ? PROT_EXEC : 0)); if(mprotect(addr, len, prot) < 0) - return(-errno); - return(0); + return -errno; + return 0; } int os_unmap_memory(void *addr, int len) @@ -185,15 +186,15 @@ int os_unmap_memory(void *addr, int len) err = munmap(addr, len); if(err < 0) - return(-errno); - return(0); + return -errno; + return 0; } #ifndef MADV_REMOVE #define MADV_REMOVE KERNEL_MADV_REMOVE #endif -int os_drop_memory(void *addr, int length) +int __init os_drop_memory(void *addr, int length) { int err; @@ -203,7 +204,7 @@ int os_drop_memory(void *addr, int length) return err; } -int can_drop_memory(void) +int __init can_drop_memory(void) { void *addr; int fd, ok = 0; @@ -244,7 +245,7 @@ void init_new_thread_stack(void *sig_stack, void (*usr1_handler)(int)) if(sig_stack != NULL){ pages = (1 << UML_CONFIG_KERNEL_STACK_ORDER); - set_sigstack(sig_stack, pages * page_size()); + set_sigstack(sig_stack, pages * UM_KERN_PAGE_SIZE); flags = SA_ONSTACK; } if(usr1_handler){ diff --git a/arch/um/os-Linux/sigio.c b/arch/um/os-Linux/sigio.c index 3fc43b3..8d4e0c6 100644 --- a/arch/um/os-Linux/sigio.c +++ b/arch/um/os-Linux/sigio.c @@ -8,6 +8,7 @@ #include <termios.h> #include <pty.h> #include <signal.h> +#include <fcntl.h> #include <errno.h> #include <string.h> #include <sched.h> @@ -16,10 +17,10 @@ #include "init.h" #include "user.h" #include "kern_util.h" -#include "user_util.h" #include "sigio.h" #include "os.h" #include "um_malloc.h" +#include "init.h" /* Protected by sigio_lock(), also used by sigio_cleanup, which is an * exitcall. @@ -68,11 +69,12 @@ static int write_sigio_thread(void *unused) p = &fds->poll[i]; if(p->revents == 0) continue; if(p->fd == sigio_private[1]){ - n = os_read_file(sigio_private[1], &c, sizeof(c)); + CATCH_EINTR(n = read(sigio_private[1], &c, + sizeof(c))); if(n != sizeof(c)) printk("write_sigio_thread : " "read on socket failed, " - "err = %d\n", -n); + "err = %d\n", errno); tmp = current_poll; current_poll = next_poll; next_poll = tmp; @@ -85,10 +87,10 @@ static int write_sigio_thread(void *unused) (fds->used - i) * sizeof(*fds->poll)); } - n = os_write_file(respond_fd, &c, sizeof(c)); + CATCH_EINTR(n = write(respond_fd, &c, sizeof(c))); if(n != sizeof(c)) printk("write_sigio_thread : write on socket " - "failed, err = %d\n", -n); + "failed, err = %d\n", errno); } } @@ -126,15 +128,15 @@ static void update_thread(void) char c; flags = set_signals(0); - n = os_write_file(sigio_private[0], &c, sizeof(c)); + n = write(sigio_private[0], &c, sizeof(c)); if(n != sizeof(c)){ - printk("update_thread : write failed, err = %d\n", -n); + printk("update_thread : write failed, err = %d\n", errno); goto fail; } - n = os_read_file(sigio_private[0], &c, sizeof(c)); + CATCH_EINTR(n = read(sigio_private[0], &c, sizeof(c))); if(n != sizeof(c)){ - printk("update_thread : read failed, err = %d\n", -n); + printk("update_thread : read failed, err = %d\n", errno); goto fail; } @@ -320,6 +322,10 @@ out_close1: close(l_write_sigio_fds[1]); } +/* Changed during early boot */ +static int pty_output_sigio = 0; +static int pty_close_sigio = 0; + void maybe_sigio_broken(int fd, int read) { int err; @@ -357,3 +363,143 @@ static void sigio_cleanup(void) } __uml_exitcall(sigio_cleanup); + +/* Used as a flag during SIGIO testing early in boot */ +static volatile int got_sigio = 0; + +static void __init handler(int sig) +{ + got_sigio = 1; +} + +struct openpty_arg { + int master; + int slave; + int err; +}; + +static void openpty_cb(void *arg) +{ + struct openpty_arg *info = arg; + + info->err = 0; + if(openpty(&info->master, &info->slave, NULL, NULL, NULL)) + info->err = -errno; +} + +static int async_pty(int master, int slave) +{ + int flags; + + flags = fcntl(master, F_GETFL); + if(flags < 0) + return -errno; + + if((fcntl(master, F_SETFL, flags | O_NONBLOCK | O_ASYNC) < 0) || + (fcntl(master, F_SETOWN, os_getpid()) < 0)) + return -errno; + + if((fcntl(slave, F_SETFL, flags | O_NONBLOCK) < 0)) + return -errno; + + return(0); +} + +static void __init check_one_sigio(void (*proc)(int, int)) +{ + struct sigaction old, new; + struct openpty_arg pty = { .master = -1, .slave = -1 }; + int master, slave, err; + + initial_thread_cb(openpty_cb, &pty); + if(pty.err){ + printk("openpty failed, errno = %d\n", -pty.err); + return; + } + + master = pty.master; + slave = pty.slave; + + if((master == -1) || (slave == -1)){ + printk("openpty failed to allocate a pty\n"); + return; + } + + /* Not now, but complain so we now where we failed. */ + err = raw(master); + if (err < 0) + panic("check_sigio : __raw failed, errno = %d\n", -err); + + err = async_pty(master, slave); + if(err < 0) + panic("tty_fds : sigio_async failed, err = %d\n", -err); + + if(sigaction(SIGIO, NULL, &old) < 0) + panic("check_sigio : sigaction 1 failed, errno = %d\n", errno); + new = old; + new.sa_handler = handler; + if(sigaction(SIGIO, &new, NULL) < 0) + panic("check_sigio : sigaction 2 failed, errno = %d\n", errno); + + got_sigio = 0; + (*proc)(master, slave); + + close(master); + close(slave); + + if(sigaction(SIGIO, &old, NULL) < 0) + panic("check_sigio : sigaction 3 failed, errno = %d\n", errno); +} + +static void tty_output(int master, int slave) +{ + int n; + char buf[512]; + + printk("Checking that host ptys support output SIGIO..."); + + memset(buf, 0, sizeof(buf)); + + while(write(master, buf, sizeof(buf)) > 0) ; + if(errno != EAGAIN) + panic("tty_output : write failed, errno = %d\n", errno); + while(((n = read(slave, buf, sizeof(buf))) > 0) && !got_sigio) ; + + if(got_sigio){ + printk("Yes\n"); + pty_output_sigio = 1; + } + else if(n == -EAGAIN) + printk("No, enabling workaround\n"); + else panic("tty_output : read failed, err = %d\n", n); +} + +static void tty_close(int master, int slave) +{ + printk("Checking that host ptys support SIGIO on close..."); + + close(slave); + if(got_sigio){ + printk("Yes\n"); + pty_close_sigio = 1; + } + else printk("No, enabling workaround\n"); +} + +void __init check_sigio(void) +{ + if((os_access("/dev/ptmx", OS_ACC_R_OK) < 0) && + (os_access("/dev/ptyp0", OS_ACC_R_OK) < 0)){ + printk("No pseudo-terminals available - skipping pty SIGIO " + "check\n"); + return; + } + check_one_sigio(tty_output); + check_one_sigio(tty_close); +} + +/* Here because it only does the SIGIO testing for now */ +void __init os_check_bugs(void) +{ + check_sigio(); +} diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c index 2667686..48d4934 100644 --- a/arch/um/os-Linux/signal.c +++ b/arch/um/os-Linux/signal.c @@ -11,7 +11,6 @@ #include <stdarg.h> #include <string.h> #include <sys/mman.h> -#include "user_util.h" #include "user.h" #include "signal_kern.h" #include "sysdep/sigcontext.h" diff --git a/arch/um/os-Linux/skas/mem.c b/arch/um/os-Linux/skas/mem.c index 9383e87..8e490ff 100644 --- a/arch/um/os-Linux/skas/mem.c +++ b/arch/um/os-Linux/skas/mem.c @@ -6,6 +6,7 @@ #include <signal.h> #include <errno.h> #include <string.h> +#include <unistd.h> #include <sys/mman.h> #include <sys/wait.h> #include <asm/page.h> @@ -17,17 +18,17 @@ #include "os.h" #include "proc_mm.h" #include "ptrace_user.h" -#include "user_util.h" #include "kern_util.h" #include "task.h" #include "registers.h" #include "uml-config.h" #include "sysdep/ptrace.h" #include "sysdep/stub.h" +#include "init.h" extern unsigned long batch_syscall_stub, __syscall_stub_start; -extern void wait_stub_done(int pid, int sig, char * fname); +extern void wait_stub_done(int pid); static inline unsigned long *check_init_stack(struct mm_id * mm_idp, unsigned long *stack) @@ -39,6 +40,19 @@ static inline unsigned long *check_init_stack(struct mm_id * mm_idp, return stack; } +static unsigned long syscall_regs[MAX_REG_NR]; + +static int __init init_syscall_regs(void) +{ + get_safe_registers(syscall_regs, NULL); + syscall_regs[REGS_IP_INDEX] = UML_CONFIG_STUB_CODE + + ((unsigned long) &batch_syscall_stub - + (unsigned long) &__syscall_stub_start); + return 0; +} + +__initcall(init_syscall_regs); + extern int proc_mm; int single_count = 0; @@ -47,12 +61,11 @@ int multi_op_count = 0; static inline long do_syscall_stub(struct mm_id * mm_idp, void **addr) { - unsigned long regs[MAX_REG_NR]; int n, i; long ret, offset; unsigned long * data; unsigned long * syscall; - int pid = mm_idp->u.pid; + int err, pid = mm_idp->u.pid; if(proc_mm) #warning Need to look up userspace_pid by cpu @@ -60,21 +73,21 @@ static inline long do_syscall_stub(struct mm_id * mm_idp, void **addr) multi_count++; - get_safe_registers(regs, NULL); - regs[REGS_IP_INDEX] = UML_CONFIG_STUB_CODE + - ((unsigned long) &batch_syscall_stub - - (unsigned long) &__syscall_stub_start); - - n = ptrace_setregs(pid, regs); + n = ptrace_setregs(pid, syscall_regs); if(n < 0){ printk("Registers - \n"); for(i = 0; i < MAX_REG_NR; i++) - printk("\t%d\t0x%lx\n", i, regs[i]); + printk("\t%d\t0x%lx\n", i, syscall_regs[i]); panic("do_syscall_stub : PTRACE_SETREGS failed, errno = %d\n", -n); } - wait_stub_done(pid, 0, "do_syscall_stub"); + err = ptrace(PTRACE_CONT, pid, 0, 0); + if(err) + panic("Failed to continue stub, pid = %d, errno = %d\n", pid, + errno); + + wait_stub_done(pid); /* When the stub stops, we find the following values on the * beginning of the stack: @@ -176,14 +189,10 @@ long syscall_stub_data(struct mm_id * mm_idp, return 0; } -int map(struct mm_id * mm_idp, unsigned long virt, unsigned long len, - int r, int w, int x, int phys_fd, unsigned long long offset, - int done, void **data) +int map(struct mm_id * mm_idp, unsigned long virt, unsigned long len, int prot, + int phys_fd, unsigned long long offset, int done, void **data) { - int prot, ret; - - prot = (r ? PROT_READ : 0) | (w ? PROT_WRITE : 0) | - (x ? PROT_EXEC : 0); + int ret; if(proc_mm){ struct proc_mm_op map; @@ -200,9 +209,11 @@ int map(struct mm_id * mm_idp, unsigned long virt, unsigned long len, .fd = phys_fd, .offset= offset } } } ); - ret = os_write_file(fd, &map, sizeof(map)); - if(ret != sizeof(map)) + CATCH_EINTR(ret = write(fd, &map, sizeof(map))); + if(ret != sizeof(map)){ + ret = -errno; printk("map : /proc/mm map failed, err = %d\n", -ret); + } else ret = 0; } else { @@ -217,8 +228,8 @@ int map(struct mm_id * mm_idp, unsigned long virt, unsigned long len, return ret; } -int unmap(struct mm_id * mm_idp, void *addr, unsigned long len, int done, - void **data) +int unmap(struct mm_id * mm_idp, unsigned long addr, unsigned long len, + int done, void **data) { int ret; @@ -232,9 +243,11 @@ int unmap(struct mm_id * mm_idp, void *addr, unsigned long len, int done, { .addr = (unsigned long) addr, .len = len } } } ); - ret = os_write_file(fd, &unmap, sizeof(unmap)); - if(ret != sizeof(unmap)) + CATCH_EINTR(ret = write(fd, &unmap, sizeof(unmap))); + if(ret != sizeof(unmap)){ + ret = -errno; printk("unmap - proc_mm write returned %d\n", ret); + } else ret = 0; } else { @@ -249,13 +262,11 @@ int unmap(struct mm_id * mm_idp, void *addr, unsigned long len, int done, } int protect(struct mm_id * mm_idp, unsigned long addr, unsigned long len, - int r, int w, int x, int done, void **data) + unsigned int prot, int done, void **data) { struct proc_mm_op protect; - int prot, ret; + int ret; - prot = (r ? PROT_READ : 0) | (w ? PROT_WRITE : 0) | - (x ? PROT_EXEC : 0); if(proc_mm){ int fd = mm_idp->u.mm_fd; @@ -267,9 +278,11 @@ int protect(struct mm_id * mm_idp, unsigned long addr, unsigned long len, .len = len, .prot = prot } } } ); - ret = os_write_file(fd, &protect, sizeof(protect)); - if(ret != sizeof(protect)) + CATCH_EINTR(ret = write(fd, &protect, sizeof(protect))); + if(ret != sizeof(protect)){ + ret = -errno; printk("protect failed, err = %d", -ret); + } else ret = 0; } else { diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index 0564422..5c088a5 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -18,7 +18,6 @@ #include <asm/types.h> #include "user.h" #include "sysdep/ptrace.h" -#include "user_util.h" #include "kern_util.h" #include "skas.h" #include "stub-data.h" @@ -34,6 +33,8 @@ #include "uml-config.h" #include "process.h" #include "longjmp.h" +#include "kern_constants.h" +#include "as-layout.h" int is_skas_winch(int pid, int fd, void *data) { @@ -44,45 +45,58 @@ int is_skas_winch(int pid, int fd, void *data) return(1); } -void wait_stub_done(int pid, int sig, char * fname) +static int ptrace_dump_regs(int pid) { - int n, status, err; + unsigned long regs[MAX_REG_NR]; + int i; + + if(ptrace(PTRACE_GETREGS, pid, 0, regs) < 0) + return -errno; + else { + printk("Stub registers -\n"); + for(i = 0; i < ARRAY_SIZE(regs); i++) + printk("\t%d - %lx\n", i, regs[i]); + } + + return 0; +} - do { - if ( sig != -1 ) { - err = ptrace(PTRACE_CONT, pid, 0, sig); - if(err) - panic("%s : continue failed, errno = %d\n", - fname, errno); - } - sig = 0; +/* + * Signals that are OK to receive in the stub - we'll just continue it. + * SIGWINCH will happen when UML is inside a detached screen. + */ +#define STUB_SIG_MASK ((1 << SIGVTALRM) | (1 << SIGWINCH)) + +/* Signals that the stub will finish with - anything else is an error */ +#define STUB_DONE_MASK ((1 << SIGUSR1) | (1 << SIGTRAP)) + +void wait_stub_done(int pid) +{ + int n, status, err; + while(1){ CATCH_EINTR(n = waitpid(pid, &status, WUNTRACED)); - } while((n >= 0) && WIFSTOPPED(status) && - ((WSTOPSIG(status) == SIGVTALRM) || - /* running UML inside a detached screen can cause - * SIGWINCHes - */ - (WSTOPSIG(status) == SIGWINCH))); - - if((n < 0) || !WIFSTOPPED(status) || - (WSTOPSIG(status) != SIGUSR1 && WSTOPSIG(status) != SIGTRAP)){ - unsigned long regs[MAX_REG_NR]; - - if(ptrace(PTRACE_GETREGS, pid, 0, regs) < 0) - printk("Failed to get registers from stub, " - "errno = %d\n", errno); - else { - int i; - - printk("Stub registers -\n"); - for(i = 0; i < ARRAY_SIZE(regs); i++) - printk("\t%d - %lx\n", i, regs[i]); - } - panic("%s : failed to wait for SIGUSR1/SIGTRAP, " - "pid = %d, n = %d, errno = %d, status = 0x%x\n", - fname, pid, n, errno, status); + if((n < 0) || !WIFSTOPPED(status)) + goto bad_wait; + + if(((1 << WSTOPSIG(status)) & STUB_SIG_MASK) == 0) + break; + + err = ptrace(PTRACE_CONT, pid, 0, 0); + if(err) + panic("wait_stub_done : continue failed, errno = %d\n", + errno); } + + if(((1 << WSTOPSIG(status)) & STUB_DONE_MASK) != 0) + return; + +bad_wait: + err = ptrace_dump_regs(pid); + if(err) + printk("Failed to get registers from stub, errno = %d\n", -err); + panic("wait_stub_done : failed to wait for SIGUSR1/SIGTRAP, pid = %d, " + "n = %d, errno = %d, status = 0x%x\n", pid, n, errno, status); } extern unsigned long current_stub_stack(void); @@ -104,7 +118,11 @@ void get_skas_faultinfo(int pid, struct faultinfo * fi) sizeof(struct ptrace_faultinfo)); } else { - wait_stub_done(pid, SIGSEGV, "get_skas_faultinfo"); + err = ptrace(PTRACE_CONT, pid, 0, SIGSEGV); + if(err) + panic("Failed to continue stub, pid = %d, errno = %d\n", + pid, errno); + wait_stub_done(pid); /* faultinfo is prepared by the stub-segv-handler at start of * the stub stack page. We just have to copy it. @@ -142,9 +160,14 @@ static void handle_trap(int pid, union uml_pt_regs *regs, int local_using_sysemu CATCH_EINTR(err = waitpid(pid, &status, WUNTRACED)); if((err < 0) || !WIFSTOPPED(status) || - (WSTOPSIG(status) != SIGTRAP + 0x80)) + (WSTOPSIG(status) != SIGTRAP + 0x80)){ + err = ptrace_dump_regs(pid); + if(err) + printk("Failed to get registers from process, " + "errno = %d\n", -err); panic("handle_trap - failed to wait at end of syscall, " "errno = %d, status = %d\n", errno, status); + } } handle_syscall(regs); @@ -172,7 +195,7 @@ static int userspace_tramp(void *stack) int fd; __u64 offset; fd = phys_mapping(to_phys(&__syscall_stub_start), &offset); - addr = mmap64((void *) UML_CONFIG_STUB_CODE, page_size(), + addr = mmap64((void *) UML_CONFIG_STUB_CODE, UM_KERN_PAGE_SIZE, PROT_EXEC, MAP_FIXED | MAP_PRIVATE, fd, offset); if(addr == MAP_FAILED){ printk("mapping mmap stub failed, errno = %d\n", @@ -182,8 +205,8 @@ static int userspace_tramp(void *stack) if(stack != NULL){ fd = phys_mapping(to_phys(stack), &offset); - addr = mmap((void *) UML_CONFIG_STUB_DATA, page_size(), - PROT_READ | PROT_WRITE, + addr = mmap((void *) UML_CONFIG_STUB_DATA, + UM_KERN_PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_SHARED, fd, offset); if(addr == MAP_FAILED){ printk("mapping segfault stack failed, " @@ -199,7 +222,7 @@ static int userspace_tramp(void *stack) (unsigned long) stub_segv_handler - (unsigned long) &__syscall_stub_start; - set_sigstack((void *) UML_CONFIG_STUB_DATA, page_size()); + set_sigstack((void *) UML_CONFIG_STUB_DATA, UM_KERN_PAGE_SIZE); sigemptyset(&sa.sa_mask); sigaddset(&sa.sa_mask, SIGIO); sigaddset(&sa.sa_mask, SIGWINCH); @@ -291,10 +314,13 @@ void userspace(union uml_pt_regs *regs) UPT_SYSCALL_NR(regs) = -1; /* Assume: It's not a syscall */ if(WIFSTOPPED(status)){ - switch(WSTOPSIG(status)){ + int sig = WSTOPSIG(status); + switch(sig){ case SIGSEGV: - if(PTRACE_FULL_FAULTINFO || !ptrace_faultinfo) - user_signal(SIGSEGV, regs, pid); + if(PTRACE_FULL_FAULTINFO || !ptrace_faultinfo){ + get_skas_faultinfo(pid, ®s->skas.faultinfo); + (*sig_info[SIGSEGV])(SIGSEGV, regs); + } else handle_segv(pid, regs); break; case SIGTRAP + 0x80: @@ -309,11 +335,13 @@ void userspace(union uml_pt_regs *regs) case SIGBUS: case SIGFPE: case SIGWINCH: - user_signal(WSTOPSIG(status), regs, pid); + block_signals(); + (*sig_info[sig])(sig, regs); + unblock_signals(); break; default: printk("userspace - child stopped with signal " - "%d\n", WSTOPSIG(status)); + "%d\n", sig); } pid = userspace_pid[0]; interrupt_end(); @@ -325,11 +353,29 @@ void userspace(union uml_pt_regs *regs) } } +static unsigned long thread_regs[MAX_REG_NR]; +static unsigned long thread_fp_regs[HOST_FP_SIZE]; + +static int __init init_thread_regs(void) +{ + get_safe_registers(thread_regs, thread_fp_regs); + /* Set parent's instruction pointer to start of clone-stub */ + thread_regs[REGS_IP_INDEX] = UML_CONFIG_STUB_CODE + + (unsigned long) stub_clone_handler - + (unsigned long) &__syscall_stub_start; + thread_regs[REGS_SP_INDEX] = UML_CONFIG_STUB_DATA + PAGE_SIZE - + sizeof(void *); +#ifdef __SIGNAL_FRAMESIZE + thread_regs[REGS_SP_INDEX] -= __SIGNAL_FRAMESIZE; +#endif + return 0; +} + +__initcall(init_thread_regs); + int copy_context_skas0(unsigned long new_stack, int pid) { int err; - unsigned long regs[MAX_REG_NR]; - unsigned long fp_regs[HOST_FP_SIZE]; unsigned long current_stack = current_stub_stack(); struct stub_data *data = (struct stub_data *) current_stack; struct stub_data *child_data = (struct stub_data *) new_stack; @@ -344,23 +390,12 @@ int copy_context_skas0(unsigned long new_stack, int pid) .timer = ((struct itimerval) { { 0, 1000000 / hz() }, { 0, 1000000 / hz() }})}); - get_safe_registers(regs, fp_regs); - - /* Set parent's instruction pointer to start of clone-stub */ - regs[REGS_IP_INDEX] = UML_CONFIG_STUB_CODE + - (unsigned long) stub_clone_handler - - (unsigned long) &__syscall_stub_start; - regs[REGS_SP_INDEX] = UML_CONFIG_STUB_DATA + PAGE_SIZE - - sizeof(void *); -#ifdef __SIGNAL_FRAMESIZE - regs[REGS_SP_INDEX] -= __SIGNAL_FRAMESIZE; -#endif - err = ptrace_setregs(pid, regs); + err = ptrace_setregs(pid, thread_regs); if(err < 0) panic("copy_context_skas0 : PTRACE_SETREGS failed, " "pid = %d, errno = %d\n", pid, -err); - err = ptrace_setfpregs(pid, fp_regs); + err = ptrace_setfpregs(pid, thread_fp_regs); if(err < 0) panic("copy_context_skas0 : PTRACE_SETFPREGS failed, " "pid = %d, errno = %d\n", pid, -err); @@ -371,7 +406,11 @@ int copy_context_skas0(unsigned long new_stack, int pid) /* Wait, until parent has finished its work: read child's pid from * parent's stack, and check, if bad result. */ - wait_stub_done(pid, 0, "copy_context_skas0"); + err = ptrace(PTRACE_CONT, pid, 0, 0); + if(err) + panic("Failed to continue new process, pid = %d, " + "errno = %d\n", pid, errno); + wait_stub_done(pid); pid = data->err; if(pid < 0) @@ -381,7 +420,7 @@ int copy_context_skas0(unsigned long new_stack, int pid) /* Wait, until child has finished too: read child's result from * child's stack and check it. */ - wait_stub_done(pid, -1, "copy_context_skas0"); + wait_stub_done(pid); if (child_data->err != UML_CONFIG_STUB_DATA) panic("copy_context_skas0 - stub-child reports error %ld\n", child_data->err); @@ -396,7 +435,7 @@ int copy_context_skas0(unsigned long new_stack, int pid) /* * This is used only, if stub pages are needed, while proc_mm is - * availabl. Opening /proc/mm creates a new mm_context, which lacks + * available. Opening /proc/mm creates a new mm_context, which lacks * the stub-pages. Thus, we map them using /proc/mm-fd */ void map_stub_pages(int fd, unsigned long code, @@ -418,12 +457,13 @@ void map_stub_pages(int fd, unsigned long code, .fd = code_fd, .offset = code_offset } } }); - n = os_write_file(fd, &mmop, sizeof(mmop)); + CATCH_EINTR(n = write(fd, &mmop, sizeof(mmop))); if(n != sizeof(mmop)){ + n = errno; printk("mmap args - addr = 0x%lx, fd = %d, offset = %llx\n", code, code_fd, (unsigned long long) code_offset); panic("map_stub_pages : /proc/mm map for code failed, " - "err = %d\n", -n); + "err = %d\n", n); } if ( stack ) { @@ -440,10 +480,10 @@ void map_stub_pages(int fd, unsigned long code, .fd = map_fd, .offset = map_offset } } }); - n = os_write_file(fd, &mmop, sizeof(mmop)); + CATCH_EINTR(n = write(fd, &mmop, sizeof(mmop))); if(n != sizeof(mmop)) panic("map_stub_pages : /proc/mm map for data failed, " - "err = %d\n", -n); + "err = %d\n", errno); } } @@ -480,7 +520,15 @@ int start_idle_thread(void *stack, jmp_buf *switch_buf) SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGALRM, SIGVTALRM, -1); - n = UML_SETJMP(&initial_jmpbuf); + /* + * Can't use UML_SETJMP or UML_LONGJMP here because they save + * and restore signals, with the possible side-effect of + * trying to handle any signals which came when they were + * blocked, which can't be done on this stack. + * Signals must be blocked when jumping back here and restored + * after returning to the jumper. + */ + n = setjmp(initial_jmpbuf); switch(n){ case INIT_JMP_NEW_THREAD: (*switch_buf)[0].JB_IP = (unsigned long) new_thread_handler; @@ -490,7 +538,7 @@ int start_idle_thread(void *stack, jmp_buf *switch_buf) break; case INIT_JMP_CALLBACK: (*cb_proc)(cb_arg); - UML_LONGJMP(cb_back, 1); + longjmp(*cb_back, 1); break; case INIT_JMP_HALT: kmalloc_ok = 0; @@ -501,7 +549,7 @@ int start_idle_thread(void *stack, jmp_buf *switch_buf) default: panic("Bad sigsetjmp return in start_idle_thread - %d\n", n); } - UML_LONGJMP(switch_buf, 1); + longjmp(*switch_buf, 1); } void initial_thread_cb_skas(void (*proc)(void *), void *arg) diff --git a/arch/um/os-Linux/skas/trap.c b/arch/um/os-Linux/skas/trap.c index 9ad5fbec..3b600c2 100644 --- a/arch/um/os-Linux/skas/trap.c +++ b/arch/um/os-Linux/skas/trap.c @@ -5,8 +5,8 @@ #include <signal.h> #include <errno.h> -#include "user_util.h" #include "kern_util.h" +#include "as-layout.h" #include "task.h" #include "sigcontext.h" #include "skas.h" @@ -15,29 +15,39 @@ #include "sysdep/ptrace_user.h" #include "os.h" +static union uml_pt_regs ksig_regs[UM_NR_CPUS]; + void sig_handler_common_skas(int sig, void *sc_ptr) { struct sigcontext *sc = sc_ptr; - struct skas_regs *r; + union uml_pt_regs *r; void (*handler)(int, union uml_pt_regs *); - int save_errno = errno; - int save_user; + int save_user, save_errno = errno; /* This is done because to allow SIGSEGV to be delivered inside a SEGV * handler. This can happen in copy_user, and if SEGV is disabled, * the process will die. * XXX Figure out why this is better than SA_NODEFER */ - if(sig == SIGSEGV) + if(sig == SIGSEGV) { change_sig(SIGSEGV, 1); + /* For segfaults, we want the data from the + * sigcontext. In this case, we don't want to mangle + * the process registers, so use a static set of + * registers. For other signals, the process + * registers are OK. + */ + r = &ksig_regs[cpu()]; + copy_sc(r, sc_ptr); + } + else r = TASK_REGS(get_current()); - r = &TASK_REGS(get_current())->skas; - save_user = r->is_user; - r->is_user = 0; + save_user = r->skas.is_user; + r->skas.is_user = 0; if ( sig == SIGFPE || sig == SIGSEGV || sig == SIGBUS || sig == SIGILL || sig == SIGTRAP ) { - GET_FAULTINFO_FROM_SC(r->faultinfo, sc); + GET_FAULTINFO_FROM_SC(r->skas.faultinfo, sc); } change_sig(SIGUSR1, 1); @@ -49,25 +59,8 @@ void sig_handler_common_skas(int sig, void *sc_ptr) sig != SIGVTALRM && sig != SIGALRM) unblock_signals(); - handler(sig, (union uml_pt_regs *) r); + handler(sig, r); errno = save_errno; - r->is_user = save_user; -} - -extern int ptrace_faultinfo; - -void user_signal(int sig, union uml_pt_regs *regs, int pid) -{ - void (*handler)(int, union uml_pt_regs *); - int segv = ((sig == SIGFPE) || (sig == SIGSEGV) || (sig == SIGBUS) || - (sig == SIGILL) || (sig == SIGTRAP)); - - if (segv) - get_skas_faultinfo(pid, ®s->skas.faultinfo); - - handler = sig_info[sig]; - handler(sig, (union uml_pt_regs *) regs); - - unblock_signals(); + r->skas.is_user = save_user; } diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c index 5178eba..79471f8 100644 --- a/arch/um/os-Linux/start_up.c +++ b/arch/um/os-Linux/start_up.c @@ -17,10 +17,10 @@ #include <sys/time.h> #include <sys/wait.h> #include <sys/mman.h> +#include <sys/resource.h> #include <asm/unistd.h> #include <asm/page.h> #include <sys/types.h> -#include "user_util.h" #include "kern_util.h" #include "user.h" #include "signal_kern.h" @@ -329,8 +329,32 @@ static void __init check_ptrace(void) extern void check_tmpexec(void); -void os_early_checks(void) +static void __init check_coredump_limit(void) { + struct rlimit lim; + int err = getrlimit(RLIMIT_CORE, &lim); + + if(err){ + perror("Getting core dump limit"); + return; + } + + printf("Core dump limits :\n\tsoft - "); + if(lim.rlim_cur == RLIM_INFINITY) + printf("NONE\n"); + else printf("%lu\n", lim.rlim_cur); + + printf("\thard - "); + if(lim.rlim_max == RLIM_INFINITY) + printf("NONE\n"); + else printf("%lu\n", lim.rlim_max); +} + +void __init os_early_checks(void) +{ + /* Print out the core dump limits early */ + check_coredump_limit(); + check_ptrace(); /* Need to check this early because mmapping happens before the @@ -528,148 +552,3 @@ int __init parse_iomem(char *str, int *add) out: return 1; } - - -/* Changed during early boot */ -int pty_output_sigio = 0; -int pty_close_sigio = 0; - -/* Used as a flag during SIGIO testing early in boot */ -static volatile int got_sigio = 0; - -static void __init handler(int sig) -{ - got_sigio = 1; -} - -struct openpty_arg { - int master; - int slave; - int err; -}; - -static void openpty_cb(void *arg) -{ - struct openpty_arg *info = arg; - - info->err = 0; - if(openpty(&info->master, &info->slave, NULL, NULL, NULL)) - info->err = -errno; -} - -static int async_pty(int master, int slave) -{ - int flags; - - flags = fcntl(master, F_GETFL); - if(flags < 0) - return -errno; - - if((fcntl(master, F_SETFL, flags | O_NONBLOCK | O_ASYNC) < 0) || - (fcntl(master, F_SETOWN, os_getpid()) < 0)) - return -errno; - - if((fcntl(slave, F_SETFL, flags | O_NONBLOCK) < 0)) - return -errno; - - return(0); -} - -static void __init check_one_sigio(void (*proc)(int, int)) -{ - struct sigaction old, new; - struct openpty_arg pty = { .master = -1, .slave = -1 }; - int master, slave, err; - - initial_thread_cb(openpty_cb, &pty); - if(pty.err){ - printk("openpty failed, errno = %d\n", -pty.err); - return; - } - - master = pty.master; - slave = pty.slave; - - if((master == -1) || (slave == -1)){ - printk("openpty failed to allocate a pty\n"); - return; - } - - /* Not now, but complain so we now where we failed. */ - err = raw(master); - if (err < 0) - panic("check_sigio : __raw failed, errno = %d\n", -err); - - err = async_pty(master, slave); - if(err < 0) - panic("tty_fds : sigio_async failed, err = %d\n", -err); - - if(sigaction(SIGIO, NULL, &old) < 0) - panic("check_sigio : sigaction 1 failed, errno = %d\n", errno); - new = old; - new.sa_handler = handler; - if(sigaction(SIGIO, &new, NULL) < 0) - panic("check_sigio : sigaction 2 failed, errno = %d\n", errno); - - got_sigio = 0; - (*proc)(master, slave); - - close(master); - close(slave); - - if(sigaction(SIGIO, &old, NULL) < 0) - panic("check_sigio : sigaction 3 failed, errno = %d\n", errno); -} - -static void tty_output(int master, int slave) -{ - int n; - char buf[512]; - - printk("Checking that host ptys support output SIGIO..."); - - memset(buf, 0, sizeof(buf)); - - while(os_write_file(master, buf, sizeof(buf)) > 0) ; - if(errno != EAGAIN) - panic("check_sigio : write failed, errno = %d\n", errno); - while(((n = os_read_file(slave, buf, sizeof(buf))) > 0) && !got_sigio) ; - - if(got_sigio){ - printk("Yes\n"); - pty_output_sigio = 1; - } - else if(n == -EAGAIN) printk("No, enabling workaround\n"); - else panic("check_sigio : read failed, err = %d\n", n); -} - -static void tty_close(int master, int slave) -{ - printk("Checking that host ptys support SIGIO on close..."); - - close(slave); - if(got_sigio){ - printk("Yes\n"); - pty_close_sigio = 1; - } - else printk("No, enabling workaround\n"); -} - -void __init check_sigio(void) -{ - if((os_access("/dev/ptmx", OS_ACC_R_OK) < 0) && - (os_access("/dev/ptyp0", OS_ACC_R_OK) < 0)){ - printk("No pseudo-terminals available - skipping pty SIGIO " - "check\n"); - return; - } - check_one_sigio(tty_output); - check_one_sigio(tty_close); -} - -void os_check_bugs(void) -{ - check_ptrace(); - check_sigio(); -} - diff --git a/arch/um/os-Linux/sys-i386/tls.c b/arch/um/os-Linux/sys-i386/tls.c index 2565320..32ed41e 100644 --- a/arch/um/os-Linux/sys-i386/tls.c +++ b/arch/um/os-Linux/sys-i386/tls.c @@ -5,7 +5,7 @@ #include <unistd.h> #include "sysdep/tls.h" -#include "user_util.h" +#include "user.h" /* Checks whether host supports TLS, and sets *tls_min according to the value * valid on the host. diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c index 2115b8b..5de169b 100644 --- a/arch/um/os-Linux/time.c +++ b/arch/um/os-Linux/time.c @@ -10,7 +10,6 @@ #include <sys/time.h> #include <signal.h> #include <errno.h> -#include "user_util.h" #include "kern_util.h" #include "user.h" #include "process.h" diff --git a/arch/um/os-Linux/trap.c b/arch/um/os-Linux/trap.c index d221214..295da65 100644 --- a/arch/um/os-Linux/trap.c +++ b/arch/um/os-Linux/trap.c @@ -6,7 +6,6 @@ #include <stdlib.h> #include <signal.h> #include "kern_util.h" -#include "user_util.h" #include "os.h" #include "mode.h" #include "longjmp.h" diff --git a/arch/um/os-Linux/tt.c b/arch/um/os-Linux/tt.c index 3dc3a02..bcf9359 100644 --- a/arch/um/os-Linux/tt.c +++ b/arch/um/os-Linux/tt.c @@ -18,7 +18,6 @@ #include <asm/ptrace.h> #include <asm/unistd.h> #include <asm/page.h> -#include "user_util.h" #include "kern_util.h" #include "user.h" #include "signal_kern.h" @@ -32,6 +31,7 @@ #include "choose-mode.h" #include "mode.h" #include "tempfile.h" +#include "kern_constants.h" int protect_memory(unsigned long addr, unsigned long len, int r, int w, int x, int must_succeed) @@ -143,7 +143,7 @@ int outer_tramp(void *arg) int sig = sigkill; t = arg; - t->pid = clone(t->tramp, (void *) t->temp_stack + page_size()/2, + t->pid = clone(t->tramp, (void *) t->temp_stack + UM_KERN_PAGE_SIZE/2, t->flags, t->tramp_data); if(t->pid > 0) wait_for_stop(t->pid, SIGSTOP, PTRACE_CONT, NULL); kill(os_getpid(), sig); diff --git a/arch/um/os-Linux/tty_log.c b/arch/um/os-Linux/tty_log.c index c6ba56c..d11a55b 100644 --- a/arch/um/os-Linux/tty_log.c +++ b/arch/um/os-Linux/tty_log.c @@ -53,9 +53,9 @@ int open_tty_log(void *tty, void *current_tty) .direction = 0, .sec = tv.tv_sec, .usec = tv.tv_usec } ); - os_write_file(tty_log_fd, &data, sizeof(data)); - os_write_file(tty_log_fd, ¤t_tty, data.len); - return(tty_log_fd); + write(tty_log_fd, &data, sizeof(data)); + write(tty_log_fd, ¤t_tty, data.len); + return tty_log_fd; } sprintf(buf, "%s/%0u-%0u", tty_log_dir, (unsigned int) tv.tv_sec, @@ -67,7 +67,7 @@ int open_tty_log(void *tty, void *current_tty) printk("open_tty_log : couldn't open '%s', errno = %d\n", buf, -fd); } - return(fd); + return fd; } void close_tty_log(int fd, void *tty) @@ -83,7 +83,7 @@ void close_tty_log(int fd, void *tty) .direction = 0, .sec = tv.tv_sec, .usec = tv.tv_usec } ); - os_write_file(tty_log_fd, &data, sizeof(data)); + write(tty_log_fd, &data, sizeof(data)); return; } os_close_file(fd); @@ -98,21 +98,21 @@ static int log_chunk(int fd, const char *buf, int len) try = (len > sizeof(chunk)) ? sizeof(chunk) : len; missed = copy_from_user_proc(chunk, (char *) buf, try); try -= missed; - n = os_write_file(fd, chunk, try); + n = write(fd, chunk, try); if(n != try) { if(n < 0) - return(n); - return(-EIO); + return -errno; + return -EIO; } if(missed != 0) - return(-EFAULT); + return -EFAULT; len -= try; total += try; buf += try; } - return(total); + return total; } int write_tty_log(int fd, const char *buf, int len, void *tty, int is_read) @@ -130,10 +130,10 @@ int write_tty_log(int fd, const char *buf, int len, void *tty, int is_read) .direction = direction, .sec = tv.tv_sec, .usec = tv.tv_usec } ); - os_write_file(tty_log_fd, &data, sizeof(data)); + write(tty_log_fd, &data, sizeof(data)); } - return(log_chunk(fd, buf, len)); + return log_chunk(fd, buf, len); } void log_exec(char **argv, void *tty) @@ -161,7 +161,7 @@ void log_exec(char **argv, void *tty) .direction = 0, .sec = tv.tv_sec, .usec = tv.tv_usec } ); - os_write_file(tty_log_fd, &data, sizeof(data)); + write(tty_log_fd, &data, sizeof(data)); for(ptr = argv; ; ptr++){ if(copy_from_user_proc(&arg, ptr, sizeof(arg))) @@ -179,7 +179,7 @@ extern void register_tty_logger(int (*opener)(void *, void *), static int register_logger(void) { register_tty_logger(open_tty_log, write_tty_log, close_tty_log); - return(0); + return 0; } __uml_initcall(register_logger); diff --git a/arch/um/os-Linux/util.c b/arch/um/os-Linux/util.c index 56b8a50..c307a89 100644 --- a/arch/um/os-Linux/util.c +++ b/arch/um/os-Linux/util.c @@ -21,7 +21,6 @@ #include <sched.h> #include <termios.h> #include <string.h> -#include "user_util.h" #include "kern_util.h" #include "user.h" #include "mem_user.h" @@ -30,28 +29,29 @@ #include "uml-config.h" #include "os.h" #include "longjmp.h" +#include "kern_constants.h" void stack_protections(unsigned long address) { int prot = PROT_READ | PROT_WRITE | PROT_EXEC; - if(mprotect((void *) address, page_size(), prot) < 0) + if(mprotect((void *) address, UM_KERN_PAGE_SIZE, prot) < 0) panic("protecting stack failed, errno = %d", errno); } void task_protections(unsigned long address) { - unsigned long guard = address + page_size(); - unsigned long stack = guard + page_size(); + unsigned long guard = address + UM_KERN_PAGE_SIZE; + unsigned long stack = guard + UM_KERN_PAGE_SIZE; int prot = 0, pages; #ifdef notdef - if(mprotect((void *) stack, page_size(), prot) < 0) + if(mprotect((void *) stack, UM_KERN_PAGE_SIZE, prot) < 0) panic("protecting guard page failed, errno = %d", errno); #endif pages = (1 << UML_CONFIG_KERNEL_STACK_ORDER) - 2; prot = PROT_READ | PROT_WRITE | PROT_EXEC; - if(mprotect((void *) stack, pages * page_size(), prot) < 0) + if(mprotect((void *) stack, pages * UM_KERN_PAGE_SIZE, prot) < 0) panic("protecting stack failed, errno = %d", errno); } @@ -96,15 +96,13 @@ void setup_machinename(char *machine_out) strcpy(machine_out, host.machine); } -char host_info[(_UTSNAME_LENGTH + 1) * 4 + _UTSNAME_NODENAME_LENGTH + 1]; - -void setup_hostinfo(void) +void setup_hostinfo(char *buf, int len) { struct utsname host; uname(&host); - sprintf(host_info, "%s %s %s %s %s", host.sysname, host.nodename, - host.release, host.version, host.machine); + snprintf(buf, len, "%s %s %s %s %s", host.sysname, host.nodename, + host.release, host.version, host.machine); } int setjmp_wrapper(void (*proc)(void *, void *), ...) @@ -121,3 +119,9 @@ int setjmp_wrapper(void (*proc)(void *, void *), ...) va_end(args); return n; } + +void os_dump_core(void) +{ + signal(SIGSEGV, SIG_DFL); + abort(); +} diff --git a/arch/um/sys-i386/bugs.c b/arch/um/sys-i386/bugs.c index f1bcd39..0393e44 100644 --- a/arch/um/sys-i386/bugs.c +++ b/arch/um/sys-i386/bugs.c @@ -1,4 +1,4 @@ -/* +/* * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) * Licensed under the GPL */ @@ -13,7 +13,6 @@ #include "sysdep/ptrace.h" #include "task.h" #include "os.h" -#include "user_util.h" #define MAXTOKEN 64 @@ -32,21 +31,21 @@ static char token(int fd, char *buf, int len, char stop) n = os_read_file(fd, ptr, sizeof(*ptr)); c = *ptr++; if(n != sizeof(*ptr)){ - if(n == 0) return(0); + if(n == 0) + return 0; printk("Reading /proc/cpuinfo failed, err = %d\n", -n); if(n < 0) - return(n); - else - return(-EIO); + return n; + else return -EIO; } } while((c != '\n') && (c != stop) && (ptr < end)); if(ptr == end){ printk("Failed to find '%c' in /proc/cpuinfo\n", stop); - return(-1); + return -1; } *(ptr - 1) = '\0'; - return(c); + return c; } static int find_cpuinfo_line(int fd, char *key, char *scratch, int len) @@ -58,48 +57,25 @@ static int find_cpuinfo_line(int fd, char *key, char *scratch, int len) while(1){ c = token(fd, scratch, len - 1, ':'); if(c <= 0) - return(0); + return 0; else if(c != ':'){ printk("Failed to find ':' in /proc/cpuinfo\n"); - return(0); + return 0; } if(!strncmp(scratch, key, strlen(key))) - return(1); + return 1; do { n = os_read_file(fd, &c, sizeof(c)); if(n != sizeof(c)){ printk("Failed to find newline in " "/proc/cpuinfo, err = %d\n", -n); - return(0); + return 0; } } while(c != '\n'); } - return(0); -} - -int cpu_feature(char *what, char *buf, int len) -{ - int fd, ret = 0; - - fd = os_open_file("/proc/cpuinfo", of_read(OPENFLAGS()), 0); - if(fd < 0){ - printk("Couldn't open /proc/cpuinfo, err = %d\n", -fd); - return(0); - } - - if(!find_cpuinfo_line(fd, what, buf, len)){ - printk("Couldn't find '%s' line in /proc/cpuinfo\n", what); - goto out_close; - } - - token(fd, buf, len, '\n'); - ret = 1; - - out_close: - os_close_file(fd); - return(ret); + return 0; } static int check_cpu_flag(char *feature, int *have_it) @@ -119,7 +95,8 @@ static int check_cpu_flag(char *feature, int *have_it) goto out; c = token(fd, buf, len - 1, ' '); - if(c < 0) goto out; + if(c < 0) + goto out; else if(c != ' '){ printk("Failed to find ' ' in /proc/cpuinfo\n"); goto out; @@ -127,7 +104,8 @@ static int check_cpu_flag(char *feature, int *have_it) while(1){ c = token(fd, buf, len - 1, ' '); - if(c < 0) goto out; + if(c < 0) + goto out; else if(c == '\n') break; if(!strcmp(buf, feature)){ @@ -136,8 +114,10 @@ static int check_cpu_flag(char *feature, int *have_it) } } out: - if(*have_it == 0) printk("No\n"); - else if(*have_it == 1) printk("Yes\n"); + if(*have_it == 0) + printk("No\n"); + else if(*have_it == 1) + printk("Yes\n"); os_close_file(fd); return 1; } @@ -189,12 +169,13 @@ int arch_handle_signal(int sig, union uml_pt_regs *regs) /* This is testing for a cmov (0x0f 0x4x) instruction causing a * SIGILL in init. */ - if((sig != SIGILL) || (TASK_PID(get_current()) != 1)) return(0); + if((sig != SIGILL) || (TASK_PID(get_current()) != 1)) + return 0; if (copy_from_user_proc(tmp, (void *) UPT_IP(regs), 2)) panic("SIGILL in init, could not read instructions!\n"); if((tmp[0] != 0x0f) || ((tmp[1] & 0xf0) != 0x40)) - return(0); + return 0; if(host_has_cmov == 0) panic("SIGILL caused by cmov, which this processor doesn't " @@ -208,16 +189,5 @@ int arch_handle_signal(int sig, union uml_pt_regs *regs) "implements it, boot a filesystem compiled for older " "processors"); else panic("Bad value for host_has_cmov (%d)", host_has_cmov); - return(0); + return 0; } - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/sys-i386/fault.c b/arch/um/sys-i386/fault.c index d0bbcdf..745b4fd 100644 --- a/arch/um/sys-i386/fault.c +++ b/arch/um/sys-i386/fault.c @@ -3,9 +3,7 @@ * Licensed under the GPL */ -#include <signal.h> #include "sysdep/ptrace.h" -#include "sysdep/sigcontext.h" /* These two are from asm-um/uaccess.h and linux/module.h, check them. */ struct exception_table_entry @@ -17,26 +15,14 @@ struct exception_table_entry const struct exception_table_entry *search_exception_tables(unsigned long add); /* Compare this to arch/i386/mm/extable.c:fixup_exception() */ -int arch_fixup(unsigned long address, void *sc_ptr) +int arch_fixup(unsigned long address, union uml_pt_regs *regs) { - struct sigcontext *sc = sc_ptr; const struct exception_table_entry *fixup; fixup = search_exception_tables(address); if(fixup != 0){ - sc->eip = fixup->fixup; + UPT_IP(regs) = fixup->fixup; return(1); } return(0); } - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/sys-i386/ptrace_user.c b/arch/um/sys-i386/ptrace_user.c index 01212c8..40ff0c8 100644 --- a/arch/um/sys-i386/ptrace_user.c +++ b/arch/um/sys-i386/ptrace_user.c @@ -1,4 +1,4 @@ -/* +/* * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) * Licensed under the GPL */ @@ -15,7 +15,6 @@ #include "user.h" #include "os.h" #include "uml-config.h" -#include "user_util.h" int ptrace_getregs(long pid, unsigned long *regs_out) { @@ -45,7 +44,8 @@ int ptrace_setfpregs(long pid, unsigned long *regs) return 0; } -/* All the below stuff is of interest for TT mode only */ +#ifdef UML_CONFIG_MODE_TT + static void write_debugregs(int pid, unsigned long *regs) { struct user *dummy; @@ -128,13 +128,4 @@ void update_debugregs(int seq) } #endif -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ +#endif diff --git a/arch/um/sys-i386/signal.c b/arch/um/sys-i386/signal.c index 3f6acd6..1cbf95f 100644 --- a/arch/um/sys-i386/signal.c +++ b/arch/um/sys-i386/signal.c @@ -18,6 +18,28 @@ #include "skas.h" +void copy_sc(union uml_pt_regs *regs, void *from) +{ + struct sigcontext *sc = from; + + REGS_GS(regs->skas.regs) = sc->gs; + REGS_FS(regs->skas.regs) = sc->fs; + REGS_ES(regs->skas.regs) = sc->es; + REGS_DS(regs->skas.regs) = sc->ds; + REGS_EDI(regs->skas.regs) = sc->edi; + REGS_ESI(regs->skas.regs) = sc->esi; + REGS_EBP(regs->skas.regs) = sc->ebp; + REGS_SP(regs->skas.regs) = sc->esp; + REGS_EBX(regs->skas.regs) = sc->ebx; + REGS_EDX(regs->skas.regs) = sc->edx; + REGS_ECX(regs->skas.regs) = sc->ecx; + REGS_EAX(regs->skas.regs) = sc->eax; + REGS_IP(regs->skas.regs) = sc->eip; + REGS_CS(regs->skas.regs) = sc->cs; + REGS_EFLAGS(regs->skas.regs) = sc->eflags; + REGS_SS(regs->skas.regs) = sc->ss; +} + static int copy_sc_from_user_skas(struct pt_regs *regs, struct sigcontext __user *from) { @@ -28,33 +50,18 @@ static int copy_sc_from_user_skas(struct pt_regs *regs, err = copy_from_user(&sc, from, sizeof(sc)); err |= copy_from_user(fpregs, sc.fpstate, sizeof(fpregs)); if(err) - return(err); - - REGS_GS(regs->regs.skas.regs) = sc.gs; - REGS_FS(regs->regs.skas.regs) = sc.fs; - REGS_ES(regs->regs.skas.regs) = sc.es; - REGS_DS(regs->regs.skas.regs) = sc.ds; - REGS_EDI(regs->regs.skas.regs) = sc.edi; - REGS_ESI(regs->regs.skas.regs) = sc.esi; - REGS_EBP(regs->regs.skas.regs) = sc.ebp; - REGS_SP(regs->regs.skas.regs) = sc.esp; - REGS_EBX(regs->regs.skas.regs) = sc.ebx; - REGS_EDX(regs->regs.skas.regs) = sc.edx; - REGS_ECX(regs->regs.skas.regs) = sc.ecx; - REGS_EAX(regs->regs.skas.regs) = sc.eax; - REGS_IP(regs->regs.skas.regs) = sc.eip; - REGS_CS(regs->regs.skas.regs) = sc.cs; - REGS_EFLAGS(regs->regs.skas.regs) = sc.eflags; - REGS_SS(regs->regs.skas.regs) = sc.ss; + return err; + + copy_sc(®s->regs, &sc); err = restore_fp_registers(userspace_pid[0], fpregs); - if(err < 0){ + if(err < 0) { printk("copy_sc_from_user_skas - PTRACE_SETFPREGS failed, " - "errno = %d\n", err); - return(1); + "errno = %d\n", -err); + return err; } - return(0); + return 0; } int copy_sc_to_user_skas(struct sigcontext __user *to, struct _fpstate __user *to_fp, @@ -90,16 +97,16 @@ int copy_sc_to_user_skas(struct sigcontext __user *to, struct _fpstate __user *t if(err < 0){ printk("copy_sc_to_user_skas - PTRACE_GETFPREGS failed, " "errno = %d\n", err); - return(1); + return 1; } to_fp = (to_fp ? to_fp : (struct _fpstate __user *) (to + 1)); sc.fpstate = to_fp; if(err) - return(err); + return err; - return(copy_to_user(to, &sc, sizeof(sc)) || - copy_to_user(to_fp, fpregs, sizeof(fpregs))); + return copy_to_user(to, &sc, sizeof(sc)) || + copy_to_user(to_fp, fpregs, sizeof(fpregs)); } #endif @@ -129,7 +136,7 @@ int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext __user *from, to->fpstate = to_fp; if(to_fp != NULL) err |= copy_from_user(to_fp, from_fp, fpsize); - return(err); + return err; } int copy_sc_to_user_tt(struct sigcontext __user *to, struct _fpstate __user *fp, @@ -164,15 +171,15 @@ static int copy_sc_from_user(struct pt_regs *to, void __user *from) ret = CHOOSE_MODE(copy_sc_from_user_tt(UPT_SC(&to->regs), from, sizeof(struct _fpstate)), copy_sc_from_user_skas(to, from)); - return(ret); + return ret; } static int copy_sc_to_user(struct sigcontext __user *to, struct _fpstate __user *fp, struct pt_regs *from, unsigned long sp) { - return(CHOOSE_MODE(copy_sc_to_user_tt(to, fp, UPT_SC(&from->regs), + return CHOOSE_MODE(copy_sc_to_user_tt(to, fp, UPT_SC(&from->regs), sizeof(*fp), sp), - copy_sc_to_user_skas(to, fp, from, sp))); + copy_sc_to_user_skas(to, fp, from, sp)); } static int copy_ucontext_to_user(struct ucontext __user *uc, struct _fpstate __user *fp, @@ -185,7 +192,7 @@ static int copy_ucontext_to_user(struct ucontext __user *uc, struct _fpstate __u err |= put_user(current->sas_ss_size, &uc->uc_stack.ss_size); err |= copy_sc_to_user(&uc->uc_mcontext, fp, ¤t->thread.regs, sp); err |= copy_to_user(&uc->uc_sigmask, set, sizeof(*set)); - return(err); + return err; } struct sigframe @@ -359,7 +366,7 @@ long sys_sigreturn(struct pt_regs regs) /* Avoid ERESTART handling */ PT_REGS_SYSCALL_NR(¤t->thread.regs) = -1; - return(PT_REGS_SYSCALL_RET(¤t->thread.regs)); + return PT_REGS_SYSCALL_RET(¤t->thread.regs); segfault: force_sig(SIGSEGV, current); @@ -389,20 +396,9 @@ long sys_rt_sigreturn(struct pt_regs regs) /* Avoid ERESTART handling */ PT_REGS_SYSCALL_NR(¤t->thread.regs) = -1; - return(PT_REGS_SYSCALL_RET(¤t->thread.regs)); + return PT_REGS_SYSCALL_RET(¤t->thread.regs); segfault: force_sig(SIGSEGV, current); return 0; } - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/sys-i386/tls.c b/arch/um/sys-i386/tls.c index 643dab5..fea8e5e 100644 --- a/arch/um/sys-i386/tls.c +++ b/arch/um/sys-i386/tls.c @@ -23,9 +23,13 @@ #include "skas.h" #endif -/* If needed we can detect when it's uninitialized. */ +/* + * If needed we can detect when it's uninitialized. + * + * These are initialized in an initcall and unchanged thereafter. + */ static int host_supports_tls = -1; -int host_gdt_entry_tls_min = -1; +int host_gdt_entry_tls_min; #ifdef CONFIG_MODE_SKAS int do_set_thread_area_skas(struct user_desc *info) @@ -361,7 +365,8 @@ out: /* XXX: This part is probably common to i386 and x86-64. Don't create a common * file for now, do that when implementing x86-64 support.*/ -static int __init __setup_host_supports_tls(void) { +static int __init __setup_host_supports_tls(void) +{ check_host_supports_tls(&host_supports_tls, &host_gdt_entry_tls_min); if (host_supports_tls) { printk(KERN_INFO "Host TLS support detected\n"); diff --git a/arch/um/sys-i386/user-offsets.c b/arch/um/sys-i386/user-offsets.c index 447306b..29118cf 100644 --- a/arch/um/sys-i386/user-offsets.c +++ b/arch/um/sys-i386/user-offsets.c @@ -1,9 +1,10 @@ #include <stdio.h> +#include <stddef.h> #include <signal.h> +#include <sys/poll.h> +#include <sys/mman.h> #include <asm/ptrace.h> #include <asm/user.h> -#include <stddef.h> -#include <sys/poll.h> #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) @@ -47,7 +48,6 @@ void foo(void) OFFSET(HOST_SC_FP_ST, _fpstate, _st); OFFSET(HOST_SC_FXSR_ENV, _fpstate, _fxsr_env); - DEFINE(HOST_FRAME_SIZE, FRAME_SIZE); DEFINE_LONGS(HOST_FP_SIZE, sizeof(struct user_i387_struct)); DEFINE_LONGS(HOST_XFP_SIZE, sizeof(struct user_fxsr_struct)); @@ -73,4 +73,8 @@ void foo(void) DEFINE(UM_POLLIN, POLLIN); DEFINE(UM_POLLPRI, POLLPRI); DEFINE(UM_POLLOUT, POLLOUT); + + DEFINE(UM_PROT_READ, PROT_READ); + DEFINE(UM_PROT_WRITE, PROT_WRITE); + DEFINE(UM_PROT_EXEC, PROT_EXEC); } diff --git a/arch/um/sys-ppc/sigcontext.c b/arch/um/sys-ppc/sigcontext.c index 5d430fc..4bdc15c 100644 --- a/arch/um/sys-ppc/sigcontext.c +++ b/arch/um/sys-ppc/sigcontext.c @@ -1,7 +1,6 @@ #include "asm/ptrace.h" #include "asm/sigcontext.h" #include "sysdep/ptrace.h" -#include "user_util.h" /* * Overrides for Emacs so that we follow Linus's tabbing style. diff --git a/arch/um/sys-x86_64/bugs.c b/arch/um/sys-x86_64/bugs.c index fdce7ea..0954788 100644 --- a/arch/um/sys-x86_64/bugs.c +++ b/arch/um/sys-x86_64/bugs.c @@ -4,12 +4,7 @@ * Licensed under the GPL */ -#include "linux/sched.h" -#include "linux/errno.h" -#include "asm/system.h" -#include "asm/pda.h" #include "sysdep/ptrace.h" -#include "os.h" void arch_init_thread(void) { @@ -21,102 +16,5 @@ void arch_check_bugs(void) int arch_handle_signal(int sig, union uml_pt_regs *regs) { - return(0); + return 0; } - -#define MAXTOKEN 64 - -/* Set during early boot */ -int host_has_cmov = 1; -int host_has_xmm = 0; - -static char token(int fd, char *buf, int len, char stop) -{ - int n; - char *ptr, *end, c; - - ptr = buf; - end = &buf[len]; - do { - n = os_read_file(fd, ptr, sizeof(*ptr)); - c = *ptr++; - if(n != sizeof(*ptr)){ - if(n == 0) return(0); - printk("Reading /proc/cpuinfo failed, err = %d\n", -n); - if(n < 0) - return(n); - else - return(-EIO); - } - } while((c != '\n') && (c != stop) && (ptr < end)); - - if(ptr == end){ - printk("Failed to find '%c' in /proc/cpuinfo\n", stop); - return(-1); - } - *(ptr - 1) = '\0'; - return(c); -} - -static int find_cpuinfo_line(int fd, char *key, char *scratch, int len) -{ - int n; - char c; - - scratch[len - 1] = '\0'; - while(1){ - c = token(fd, scratch, len - 1, ':'); - if(c <= 0) - return(0); - else if(c != ':'){ - printk("Failed to find ':' in /proc/cpuinfo\n"); - return(0); - } - - if(!strncmp(scratch, key, strlen(key))) - return(1); - - do { - n = os_read_file(fd, &c, sizeof(c)); - if(n != sizeof(c)){ - printk("Failed to find newline in " - "/proc/cpuinfo, err = %d\n", -n); - return(0); - } - } while(c != '\n'); - } - return(0); -} - -int cpu_feature(char *what, char *buf, int len) -{ - int fd, ret = 0; - - fd = os_open_file("/proc/cpuinfo", of_read(OPENFLAGS()), 0); - if(fd < 0){ - printk("Couldn't open /proc/cpuinfo, err = %d\n", -fd); - return(0); - } - - if(!find_cpuinfo_line(fd, what, buf, len)){ - printk("Couldn't find '%s' line in /proc/cpuinfo\n", what); - goto out_close; - } - - token(fd, buf, len, '\n'); - ret = 1; - - out_close: - os_close_file(fd); - return(ret); -} - -/* Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/sys-x86_64/fault.c b/arch/um/sys-x86_64/fault.c index cee1513..4636b14 100644 --- a/arch/um/sys-x86_64/fault.c +++ b/arch/um/sys-x86_64/fault.c @@ -4,20 +4,24 @@ * Licensed under the GPL */ -#include "user.h" +#include "sysdep/ptrace.h" -int arch_fixup(unsigned long address, void *sc_ptr) +/* These two are from asm-um/uaccess.h and linux/module.h, check them. */ +struct exception_table_entry { - /* XXX search_exception_tables() */ + unsigned long insn; + unsigned long fixup; +}; + +const struct exception_table_entry *search_exception_tables(unsigned long add); +int arch_fixup(unsigned long address, union uml_pt_regs *regs) +{ + const struct exception_table_entry *fixup; + + fixup = search_exception_tables(address); + if(fixup != 0){ + UPT_IP(regs) = fixup->fixup; + return(1); + } return(0); } - -/* Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c index af2f017..fe8ec04 100644 --- a/arch/um/sys-x86_64/signal.c +++ b/arch/um/sys-x86_64/signal.c @@ -20,6 +20,36 @@ #include "skas.h" +void copy_sc(union uml_pt_regs *regs, void *from) +{ + struct sigcontext *sc = from; + +#define GETREG(regs, regno, sc, regname) \ + (regs)->skas.regs[(regno) / sizeof(unsigned long)] = (sc)->regname + + GETREG(regs, R8, sc, r8); + GETREG(regs, R9, sc, r9); + GETREG(regs, R10, sc, r10); + GETREG(regs, R11, sc, r11); + GETREG(regs, R12, sc, r12); + GETREG(regs, R13, sc, r13); + GETREG(regs, R14, sc, r14); + GETREG(regs, R15, sc, r15); + GETREG(regs, RDI, sc, rdi); + GETREG(regs, RSI, sc, rsi); + GETREG(regs, RBP, sc, rbp); + GETREG(regs, RBX, sc, rbx); + GETREG(regs, RDX, sc, rdx); + GETREG(regs, RAX, sc, rax); + GETREG(regs, RCX, sc, rcx); + GETREG(regs, RSP, sc, rsp); + GETREG(regs, RIP, sc, rip); + GETREG(regs, EFLAGS, sc, eflags); + GETREG(regs, CS, sc, cs); + +#undef GETREG +} + static int copy_sc_from_user_skas(struct pt_regs *regs, struct sigcontext __user *from) { @@ -51,7 +81,7 @@ static int copy_sc_from_user_skas(struct pt_regs *regs, #undef GETREG - return(err); + return err; } int copy_sc_to_user_skas(struct sigcontext __user *to, diff --git a/arch/um/sys-x86_64/user-offsets.c b/arch/um/sys-x86_64/user-offsets.c index 899cebb..0d5fd76 100644 --- a/arch/um/sys-x86_64/user-offsets.c +++ b/arch/um/sys-x86_64/user-offsets.c @@ -2,6 +2,7 @@ #include <stddef.h> #include <signal.h> #include <sys/poll.h> +#include <sys/mman.h> #define __FRAME_OFFSETS #include <asm/ptrace.h> #include <asm/types.h> @@ -57,7 +58,6 @@ void foo(void) OFFSET(HOST_SC_SS, sigcontext, ss); #endif - DEFINE_LONGS(HOST_FRAME_SIZE, FRAME_SIZE); DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long)); DEFINE(HOST_XFP_SIZE, 0); DEFINE_LONGS(HOST_RBX, RBX); @@ -94,4 +94,8 @@ void foo(void) DEFINE(UM_POLLIN, POLLIN); DEFINE(UM_POLLPRI, POLLPRI); DEFINE(UM_POLLOUT, POLLOUT); + + DEFINE(UM_PROT_READ, PROT_READ); + DEFINE(UM_PROT_WRITE, PROT_WRITE); + DEFINE(UM_PROT_EXEC, PROT_EXEC); } diff --git a/arch/v850/Kconfig b/arch/v850/Kconfig index 50ccc7f..5f54c12 100644 --- a/arch/v850/Kconfig +++ b/arch/v850/Kconfig @@ -37,6 +37,10 @@ config GENERIC_IRQ_PROBE bool default y +config GENERIC_TIME + bool + default y + config TIME_LOW_RES bool default y diff --git a/arch/v850/kernel/time.c b/arch/v850/kernel/time.c index 486e3a4..f0905b0 100644 --- a/arch/v850/kernel/time.c +++ b/arch/v850/kernel/time.c @@ -90,81 +90,6 @@ static irqreturn_t timer_interrupt (int irq, void *dummy, struct pt_regs *regs) return IRQ_HANDLED; } -/* - * This version of gettimeofday has near microsecond resolution. - */ -void do_gettimeofday (struct timeval *tv) -{ -#if 0 /* DAVIDM later if possible */ - extern volatile unsigned long lost_ticks; - unsigned long lost; -#endif - unsigned long flags; - unsigned long usec, sec; - unsigned long seq; - - do { - seq = read_seqbegin_irqsave(&xtime_lock, flags); - -#if 0 - usec = mach_gettimeoffset ? mach_gettimeoffset () : 0; -#else - usec = 0; -#endif -#if 0 /* DAVIDM later if possible */ - lost = lost_ticks; - if (lost) - usec += lost * (1000000/HZ); -#endif - sec = xtime.tv_sec; - usec += xtime.tv_nsec / 1000; - } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); - - while (usec >= 1000000) { - usec -= 1000000; - sec++; - } - - tv->tv_sec = sec; - tv->tv_usec = usec; -} - -EXPORT_SYMBOL(do_gettimeofday); - -int do_settimeofday(struct timespec *tv) -{ - if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) - return -EINVAL; - - write_seqlock_irq (&xtime_lock); - - /* This is revolting. We need to set the xtime.tv_nsec - * correctly. However, the value in this location is - * is value at the last tick. - * Discover what correction gettimeofday - * would have done, and then undo it! - */ -#if 0 - tv->tv_nsec -= mach_gettimeoffset() * 1000; -#endif - - while (tv->tv_nsec < 0) { - tv->tv_nsec += NSEC_PER_SEC; - tv->tv_sec--; - } - - xtime.tv_sec = tv->tv_sec; - xtime.tv_nsec = tv->tv_nsec; - - ntp_clear(); - - write_sequnlock_irq (&xtime_lock); - clock_was_set(); - return 0; -} - -EXPORT_SYMBOL(do_settimeofday); - static int timer_dev_id; static struct irqaction timer_irqaction = { timer_interrupt, diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 56eb14c..145bb82 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -415,13 +415,13 @@ config OUT_OF_LINE_PFN_TO_PAGE depends on DISCONTIGMEM config NR_CPUS - int "Maximum number of CPUs (2-256)" + int "Maximum number of CPUs (2-255)" range 2 255 depends on SMP default "8" help This allows you to specify the maximum number of CPUs which this - kernel will support. Current maximum is 256 CPUs due to + kernel will support. Current maximum is 255 CPUs due to APIC addressing limits. Less depending on the hardware. This is purely to save memory - each supported CPU requires @@ -565,23 +565,56 @@ config CRASH_DUMP PHYSICAL_START. For more details see Documentation/kdump/kdump.txt +config RELOCATABLE + bool "Build a relocatable kernel(EXPERIMENTAL)" + depends on EXPERIMENTAL + help + Builds a relocatable kernel. This enables loading and running + a kernel binary from a different physical address than it has + been compiled for. + + One use is for the kexec on panic case where the recovery kernel + must live at a different physical address than the primary + kernel. + + Note: If CONFIG_RELOCATABLE=y, then kernel run from the address + it has been loaded at and compile time physical address + (CONFIG_PHYSICAL_START) is ignored. + config PHYSICAL_START hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP) - default "0x1000000" if CRASH_DUMP default "0x200000" help - This gives the physical address where the kernel is loaded. Normally - for regular kernels this value is 0x200000 (2MB). But in the case - of kexec on panic the fail safe kernel needs to run at a different - address than the panic-ed kernel. This option is used to set the load - address for kernels used to capture crash dump on being kexec'ed - after panic. The default value for crash dump kernels is - 0x1000000 (16MB). This can also be set based on the "X" value as + This gives the physical address where the kernel is loaded. It + should be aligned to 2MB boundary. + + If kernel is a not relocatable (CONFIG_RELOCATABLE=n) then + bzImage will decompress itself to above physical address and + run from there. Otherwise, bzImage will run from the address where + it has been loaded by the boot loader and will ignore above physical + address. + + In normal kdump cases one does not have to set/change this option + as now bzImage can be compiled as a completely relocatable image + (CONFIG_RELOCATABLE=y) and be used to load and run from a different + address. This option is mainly useful for the folks who don't want + to use a bzImage for capturing the crash dump and want to use a + vmlinux instead. + + So if you are using bzImage for capturing the crash dump, leave + the value here unchanged to 0x200000 and set CONFIG_RELOCATABLE=y. + Otherwise if you plan to use vmlinux for capturing the crash dump + change this value to start of the reserved region (Typically 16MB + 0x1000000). In other words, it can be set based on the "X" value as specified in the "crashkernel=YM@XM" command line boot parameter passed to the panic-ed kernel. Typically this parameter is set as crashkernel=64M@16M. Please take a look at Documentation/kdump/kdump.txt for more details about crash dumps. + Usage of bzImage for capturing the crash dump is advantageous as + one does not have to build two kernels. Same kernel can be used + as production kernel and capture kernel. + Don't change this unless you know what you are doing. config SECCOMP @@ -627,14 +660,6 @@ config CC_STACKPROTECTOR_ALL source kernel/Kconfig.hz -config REORDER - bool "Function reordering" - default n - help - This option enables the toolchain to reorder functions for a more - optimal TLB usage. If you have pretty much any version of binutils, - this can increase your kernel build time by roughly one minute. - config K8_NB def_bool y depends on AGP_AMD64 || IOMMU || (PCI && NUMA) @@ -676,6 +701,7 @@ menu "Bus options (PCI etc.)" config PCI bool "PCI support" + select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC) # x86-64 doesn't support PCI BIOS access from long mode so always go direct. config PCI_DIRECT diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile index 2941a91..29617ae 100644 --- a/arch/x86_64/Makefile +++ b/arch/x86_64/Makefile @@ -40,10 +40,6 @@ cflags-y += -m64 cflags-y += -mno-red-zone cflags-y += -mcmodel=kernel cflags-y += -pipe -cflags-kernel-$(CONFIG_REORDER) += -ffunction-sections -# this makes reading assembly source easier, but produces worse code -# actually it makes the kernel smaller too. -cflags-y += -fno-reorder-blocks cflags-y += -Wno-sign-compare cflags-y += -fno-asynchronous-unwind-tables ifneq ($(CONFIG_DEBUG_INFO),y) diff --git a/arch/x86_64/boot/Makefile b/arch/x86_64/boot/Makefile index deb063e..ee6f650 100644 --- a/arch/x86_64/boot/Makefile +++ b/arch/x86_64/boot/Makefile @@ -36,7 +36,7 @@ subdir- := compressed/ #Let make clean descend in compressed/ # --------------------------------------------------------------------------- $(obj)/bzImage: IMAGE_OFFSET := 0x100000 -$(obj)/bzImage: EXTRA_AFLAGS := -traditional $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__ +$(obj)/bzImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__ $(obj)/bzImage: BUILDFLAGS := -b quiet_cmd_image = BUILD $@ diff --git a/arch/x86_64/boot/compressed/Makefile b/arch/x86_64/boot/compressed/Makefile index e70fa6e..705a3e3 100644 --- a/arch/x86_64/boot/compressed/Makefile +++ b/arch/x86_64/boot/compressed/Makefile @@ -8,16 +8,14 @@ targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o EXTRA_AFLAGS := -traditional -AFLAGS := $(subst -m64,-m32,$(AFLAGS)) # cannot use EXTRA_CFLAGS because base CFLAGS contains -mkernel which conflicts with # -m32 -CFLAGS := -m32 -D__KERNEL__ -Iinclude -O2 -fno-strict-aliasing -LDFLAGS := -m elf_i386 +CFLAGS := -m64 -D__KERNEL__ -Iinclude -O2 -fno-strict-aliasing -fPIC -mcmodel=small -fno-builtin +LDFLAGS := -m elf_x86_64 -LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup_32 -m elf_i386 - -$(obj)/vmlinux: $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o FORCE +LDFLAGS_vmlinux := -T +$(obj)/vmlinux: $(src)/vmlinux.lds $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o FORCE $(call if_changed,ld) @: @@ -27,7 +25,7 @@ $(obj)/vmlinux.bin: vmlinux FORCE $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE $(call if_changed,gzip) -LDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T +LDFLAGS_piggy.o := -r --format binary --oformat elf64-x86-64 -T $(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE $(call if_changed,ld) diff --git a/arch/x86_64/boot/compressed/head.S b/arch/x86_64/boot/compressed/head.S index 6f55565..f9d5692 100644 --- a/arch/x86_64/boot/compressed/head.S +++ b/arch/x86_64/boot/compressed/head.S @@ -26,116 +26,279 @@ #include <linux/linkage.h> #include <asm/segment.h> +#include <asm/pgtable.h> #include <asm/page.h> +#include <asm/msr.h> +.section ".text.head" .code32 .globl startup_32 - + startup_32: cld cli - movl $(__KERNEL_DS),%eax - movl %eax,%ds - movl %eax,%es - movl %eax,%fs - movl %eax,%gs - - lss stack_start,%esp - xorl %eax,%eax -1: incl %eax # check that A20 really IS enabled - movl %eax,0x000000 # loop forever if it isn't - cmpl %eax,0x100000 - je 1b + movl $(__KERNEL_DS), %eax + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + +/* Calculate the delta between where we were compiled to run + * at and where we were actually loaded at. This can only be done + * with a short local call on x86. Nothing else will tell us what + * address we are running at. The reserved chunk of the real-mode + * data at 0x34-0x3f are used as the stack for this calculation. + * Only 4 bytes are needed. + */ + leal 0x40(%esi), %esp + call 1f +1: popl %ebp + subl $1b, %ebp + +/* setup a stack and make sure cpu supports long mode. */ + movl $user_stack_end, %eax + addl %ebp, %eax + movl %eax, %esp + + call verify_cpu + testl %eax, %eax + jnz no_longmode + +/* Compute the delta between where we were compiled to run at + * and where the code will actually run at. + */ +/* %ebp contains the address we are loaded at by the boot loader and %ebx + * contains the address where we should move the kernel image temporarily + * for safe in-place decompression. + */ + +#ifdef CONFIG_RELOCATABLE + movl %ebp, %ebx + addl $(LARGE_PAGE_SIZE -1), %ebx + andl $LARGE_PAGE_MASK, %ebx +#else + movl $CONFIG_PHYSICAL_START, %ebx +#endif + + /* Replace the compressed data size with the uncompressed size */ + subl input_len(%ebp), %ebx + movl output_len(%ebp), %eax + addl %eax, %ebx + /* Add 8 bytes for every 32K input block */ + shrl $12, %eax + addl %eax, %ebx + /* Add 32K + 18 bytes of extra slack and align on a 4K boundary */ + addl $(32768 + 18 + 4095), %ebx + andl $~4095, %ebx /* - * Initialize eflags. Some BIOS's leave bits like NT set. This would - * confuse the debugger if this code is traced. - * XXX - best to initialize before switching to protected mode. + * Prepare for entering 64 bit mode */ - pushl $0 - popfl + + /* Load new GDT with the 64bit segments using 32bit descriptor */ + leal gdt(%ebp), %eax + movl %eax, gdt+2(%ebp) + lgdt gdt(%ebp) + + /* Enable PAE mode */ + xorl %eax, %eax + orl $(1 << 5), %eax + movl %eax, %cr4 + + /* + * Build early 4G boot pagetable + */ + /* Initialize Page tables to 0*/ + leal pgtable(%ebx), %edi + xorl %eax, %eax + movl $((4096*6)/4), %ecx + rep stosl + + /* Build Level 4 */ + leal pgtable + 0(%ebx), %edi + leal 0x1007 (%edi), %eax + movl %eax, 0(%edi) + + /* Build Level 3 */ + leal pgtable + 0x1000(%ebx), %edi + leal 0x1007(%edi), %eax + movl $4, %ecx +1: movl %eax, 0x00(%edi) + addl $0x00001000, %eax + addl $8, %edi + decl %ecx + jnz 1b + + /* Build Level 2 */ + leal pgtable + 0x2000(%ebx), %edi + movl $0x00000183, %eax + movl $2048, %ecx +1: movl %eax, 0(%edi) + addl $0x00200000, %eax + addl $8, %edi + decl %ecx + jnz 1b + + /* Enable the boot page tables */ + leal pgtable(%ebx), %eax + movl %eax, %cr3 + + /* Enable Long mode in EFER (Extended Feature Enable Register) */ + movl $MSR_EFER, %ecx + rdmsr + btsl $_EFER_LME, %eax + wrmsr + + /* Setup for the jump to 64bit mode + * + * When the jump is performend we will be in long mode but + * in 32bit compatibility mode with EFER.LME = 1, CS.L = 0, CS.D = 1 + * (and in turn EFER.LMA = 1). To jump into 64bit mode we use + * the new gdt/idt that has __KERNEL_CS with CS.L = 1. + * We place all of the values on our mini stack so lret can + * used to perform that far jump. + */ + pushl $__KERNEL_CS + leal startup_64(%ebp), %eax + pushl %eax + + /* Enter paged protected Mode, activating Long Mode */ + movl $0x80000001, %eax /* Enable Paging and Protected mode */ + movl %eax, %cr0 + + /* Jump from 32bit compatibility mode into 64bit mode. */ + lret + +no_longmode: + /* This isn't an x86-64 CPU so hang */ +1: + hlt + jmp 1b + +#include "../../kernel/verify_cpu.S" + + /* Be careful here startup_64 needs to be at a predictable + * address so I can export it in an ELF header. Bootloaders + * should look at the ELF header to find this address, as + * it may change in the future. + */ + .code64 + .org 0x200 +ENTRY(startup_64) + /* We come here either from startup_32 or directly from a + * 64bit bootloader. If we come here from a bootloader we depend on + * an identity mapped page table being provied that maps our + * entire text+data+bss and hopefully all of memory. + */ + + /* Setup data segments. */ + xorl %eax, %eax + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + + /* Compute the decompressed kernel start address. It is where + * we were loaded at aligned to a 2M boundary. %rbp contains the + * decompressed kernel start address. + * + * If it is a relocatable kernel then decompress and run the kernel + * from load address aligned to 2MB addr, otherwise decompress and + * run the kernel from CONFIG_PHYSICAL_START + */ + + /* Start with the delta to where the kernel will run at. */ +#ifdef CONFIG_RELOCATABLE + leaq startup_32(%rip) /* - $startup_32 */, %rbp + addq $(LARGE_PAGE_SIZE - 1), %rbp + andq $LARGE_PAGE_MASK, %rbp + movq %rbp, %rbx +#else + movq $CONFIG_PHYSICAL_START, %rbp + movq %rbp, %rbx +#endif + + /* Replace the compressed data size with the uncompressed size */ + movl input_len(%rip), %eax + subq %rax, %rbx + movl output_len(%rip), %eax + addq %rax, %rbx + /* Add 8 bytes for every 32K input block */ + shrq $12, %rax + addq %rax, %rbx + /* Add 32K + 18 bytes of extra slack and align on a 4K boundary */ + addq $(32768 + 18 + 4095), %rbx + andq $~4095, %rbx + +/* Copy the compressed kernel to the end of our buffer + * where decompression in place becomes safe. + */ + leaq _end(%rip), %r8 + leaq _end(%rbx), %r9 + movq $_end /* - $startup_32 */, %rcx +1: subq $8, %r8 + subq $8, %r9 + movq 0(%r8), %rax + movq %rax, 0(%r9) + subq $8, %rcx + jnz 1b + +/* + * Jump to the relocated address. + */ + leaq relocated(%rbx), %rax + jmp *%rax + +.section ".text" +relocated: + /* * Clear BSS */ - xorl %eax,%eax - movl $_edata,%edi - movl $_end,%ecx - subl %edi,%ecx + xorq %rax, %rax + leaq _edata(%rbx), %rdi + leaq _end(%rbx), %rcx + subq %rdi, %rcx cld rep stosb + + /* Setup the stack */ + leaq user_stack_end(%rip), %rsp + + /* zero EFLAGS after setting rsp */ + pushq $0 + popfq + /* * Do the decompression, and jump to the new kernel.. */ - subl $16,%esp # place for structure on the stack - movl %esp,%eax - pushl %esi # real mode pointer as second arg - pushl %eax # address of structure as first arg - call decompress_kernel - orl %eax,%eax - jnz 3f - addl $8,%esp - xorl %ebx,%ebx - ljmp $(__KERNEL_CS), $__PHYSICAL_START + pushq %rsi # Save the real mode argument + movq %rsi, %rdi # real mode address + leaq _heap(%rip), %rsi # _heap + leaq input_data(%rip), %rdx # input_data + movl input_len(%rip), %eax + movq %rax, %rcx # input_len + movq %rbp, %r8 # output + call decompress_kernel + popq %rsi -/* - * We come here, if we were loaded high. - * We need to move the move-in-place routine down to 0x1000 - * and then start it with the buffer addresses in registers, - * which we got from the stack. - */ -3: - movl %esi,%ebx - movl $move_routine_start,%esi - movl $0x1000,%edi - movl $move_routine_end,%ecx - subl %esi,%ecx - addl $3,%ecx - shrl $2,%ecx - cld - rep - movsl - - popl %esi # discard the address - addl $4,%esp # real mode pointer - popl %esi # low_buffer_start - popl %ecx # lcount - popl %edx # high_buffer_start - popl %eax # hcount - movl $__PHYSICAL_START,%edi - cli # make sure we don't get interrupted - ljmp $(__KERNEL_CS), $0x1000 # and jump to the move routine /* - * Routine (template) for moving the decompressed kernel in place, - * if we were high loaded. This _must_ PIC-code ! + * Jump to the decompressed kernel. */ -move_routine_start: - movl %ecx,%ebp - shrl $2,%ecx - rep - movsl - movl %ebp,%ecx - andl $3,%ecx - rep - movsb - movl %edx,%esi - movl %eax,%ecx # NOTE: rep movsb won't move if %ecx == 0 - addl $3,%ecx - shrl $2,%ecx - rep - movsl - movl %ebx,%esi # Restore setup pointer - xorl %ebx,%ebx - ljmp $(__KERNEL_CS), $__PHYSICAL_START -move_routine_end: + jmp *%rbp - -/* Stack for uncompression */ - .align 32 -user_stack: + .data +gdt: + .word gdt_end - gdt + .long gdt + .word 0 + .quad 0x0000000000000000 /* NULL descriptor */ + .quad 0x00af9a000000ffff /* __KERNEL_CS */ + .quad 0x00cf92000000ffff /* __KERNEL_DS */ +gdt_end: + .bss +/* Stack for uncompression */ + .balign 4 +user_stack: .fill 4096,4,0 -stack_start: - .long user_stack+4096 - .word __KERNEL_DS - +user_stack_end: diff --git a/arch/x86_64/boot/compressed/misc.c b/arch/x86_64/boot/compressed/misc.c index 3755b2e..f932b0e 100644 --- a/arch/x86_64/boot/compressed/misc.c +++ b/arch/x86_64/boot/compressed/misc.c @@ -9,10 +9,95 @@ * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996 */ +#define _LINUX_STRING_H_ 1 +#define __LINUX_BITMAP_H 1 + +#include <linux/linkage.h> #include <linux/screen_info.h> #include <asm/io.h> #include <asm/page.h> +/* WARNING!! + * This code is compiled with -fPIC and it is relocated dynamically + * at run time, but no relocation processing is performed. + * This means that it is not safe to place pointers in static structures. + */ + +/* + * Getting to provable safe in place decompression is hard. + * Worst case behaviours need to be analized. + * Background information: + * + * The file layout is: + * magic[2] + * method[1] + * flags[1] + * timestamp[4] + * extraflags[1] + * os[1] + * compressed data blocks[N] + * crc[4] orig_len[4] + * + * resulting in 18 bytes of non compressed data overhead. + * + * Files divided into blocks + * 1 bit (last block flag) + * 2 bits (block type) + * + * 1 block occurs every 32K -1 bytes or when there 50% compression has been achieved. + * The smallest block type encoding is always used. + * + * stored: + * 32 bits length in bytes. + * + * fixed: + * magic fixed tree. + * symbols. + * + * dynamic: + * dynamic tree encoding. + * symbols. + * + * + * The buffer for decompression in place is the length of the + * uncompressed data, plus a small amount extra to keep the algorithm safe. + * The compressed data is placed at the end of the buffer. The output + * pointer is placed at the start of the buffer and the input pointer + * is placed where the compressed data starts. Problems will occur + * when the output pointer overruns the input pointer. + * + * The output pointer can only overrun the input pointer if the input + * pointer is moving faster than the output pointer. A condition only + * triggered by data whose compressed form is larger than the uncompressed + * form. + * + * The worst case at the block level is a growth of the compressed data + * of 5 bytes per 32767 bytes. + * + * The worst case internal to a compressed block is very hard to figure. + * The worst case can at least be boundined by having one bit that represents + * 32764 bytes and then all of the rest of the bytes representing the very + * very last byte. + * + * All of which is enough to compute an amount of extra data that is required + * to be safe. To avoid problems at the block level allocating 5 extra bytes + * per 32767 bytes of data is sufficient. To avoind problems internal to a block + * adding an extra 32767 bytes (the worst case uncompressed block size) is + * sufficient, to ensure that in the worst case the decompressed data for + * block will stop the byte before the compressed data for a block begins. + * To avoid problems with the compressed data's meta information an extra 18 + * bytes are needed. Leading to the formula: + * + * extra_bytes = (uncompressed_size >> 12) + 32768 + 18 + decompressor_size. + * + * Adding 8 bytes per 32K is a bit excessive but much easier to calculate. + * Adding 32768 instead of 32767 just makes for round numbers. + * Adding the decompressor_size is necessary as it musht live after all + * of the data as well. Last I measured the decompressor is about 14K. + * 10K of actuall data and 4K of bss. + * + */ + /* * gzip declarations */ @@ -28,15 +113,20 @@ typedef unsigned char uch; typedef unsigned short ush; typedef unsigned long ulg; -#define WSIZE 0x8000 /* Window size must be at least 32k, */ - /* and a power of two */ +#define WSIZE 0x80000000 /* Window size must be at least 32k, + * and a power of two + * We don't actually have a window just + * a huge output buffer so I report + * a 2G windows size, as that should + * always be larger than our output buffer. + */ -static uch *inbuf; /* input buffer */ -static uch window[WSIZE]; /* Sliding window buffer */ +static uch *inbuf; /* input buffer */ +static uch *window; /* Sliding window buffer, (and final output buffer) */ -static unsigned insize = 0; /* valid bytes in inbuf */ -static unsigned inptr = 0; /* index of next byte to be processed in inbuf */ -static unsigned outcnt = 0; /* bytes in output buffer */ +static unsigned insize; /* valid bytes in inbuf */ +static unsigned inptr; /* index of next byte to be processed in inbuf */ +static unsigned outcnt; /* bytes in output buffer */ /* gzip flag byte */ #define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */ @@ -87,8 +177,6 @@ extern unsigned char input_data[]; extern int input_len; static long bytes_out = 0; -static uch *output_data; -static unsigned long output_ptr = 0; static void *malloc(int size); static void free(void *where); @@ -98,17 +186,10 @@ static void *memcpy(void *dest, const void *src, unsigned n); static void putstr(const char *); -extern int end; -static long free_mem_ptr = (long)&end; +static long free_mem_ptr; static long free_mem_end_ptr; -#define INPLACE_MOVE_ROUTINE 0x1000 -#define LOW_BUFFER_START 0x2000 -#define LOW_BUFFER_MAX 0x90000 -#define HEAP_SIZE 0x3000 -static unsigned int low_buffer_end, low_buffer_size; -static int high_loaded =0; -static uch *high_buffer_start /* = (uch *)(((ulg)&end) + HEAP_SIZE)*/; +#define HEAP_SIZE 0x7000 static char *vidmem = (char *)0xb8000; static int vidport; @@ -218,58 +299,31 @@ static void* memcpy(void* dest, const void* src, unsigned n) */ static int fill_inbuf(void) { - if (insize != 0) { - error("ran out of input data"); - } - - inbuf = input_data; - insize = input_len; - inptr = 1; - return inbuf[0]; + error("ran out of input data"); + return 0; } /* =========================================================================== * Write the output window window[0..outcnt-1] and update crc and bytes_out. * (Used for the decompressed data only.) */ -static void flush_window_low(void) -{ - ulg c = crc; /* temporary variable */ - unsigned n; - uch *in, *out, ch; - - in = window; - out = &output_data[output_ptr]; - for (n = 0; n < outcnt; n++) { - ch = *out++ = *in++; - c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8); - } - crc = c; - bytes_out += (ulg)outcnt; - output_ptr += (ulg)outcnt; - outcnt = 0; -} - -static void flush_window_high(void) -{ - ulg c = crc; /* temporary variable */ - unsigned n; - uch *in, ch; - in = window; - for (n = 0; n < outcnt; n++) { - ch = *output_data++ = *in++; - if ((ulg)output_data == low_buffer_end) output_data=high_buffer_start; - c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8); - } - crc = c; - bytes_out += (ulg)outcnt; - outcnt = 0; -} - static void flush_window(void) { - if (high_loaded) flush_window_high(); - else flush_window_low(); + /* With my window equal to my output buffer + * I only need to compute the crc here. + */ + ulg c = crc; /* temporary variable */ + unsigned n; + uch *in, ch; + + in = window; + for (n = 0; n < outcnt; n++) { + ch = *in++; + c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8); + } + crc = c; + bytes_out += (ulg)outcnt; + outcnt = 0; } static void error(char *x) @@ -281,57 +335,8 @@ static void error(char *x) while(1); /* Halt */ } -static void setup_normal_output_buffer(void) -{ -#ifdef STANDARD_MEMORY_BIOS_CALL - if (RM_EXT_MEM_K < 1024) error("Less than 2MB of memory"); -#else - if ((RM_ALT_MEM_K > RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) < 1024) error("Less than 2MB of memory"); -#endif - output_data = (unsigned char *)__PHYSICAL_START; /* Normally Points to 1M */ - free_mem_end_ptr = (long)real_mode; -} - -struct moveparams { - uch *low_buffer_start; int lcount; - uch *high_buffer_start; int hcount; -}; - -static void setup_output_buffer_if_we_run_high(struct moveparams *mv) -{ - high_buffer_start = (uch *)(((ulg)&end) + HEAP_SIZE); -#ifdef STANDARD_MEMORY_BIOS_CALL - if (RM_EXT_MEM_K < (3*1024)) error("Less than 4MB of memory"); -#else - if ((RM_ALT_MEM_K > RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) < (3*1024)) error("Less than 4MB of memory"); -#endif - mv->low_buffer_start = output_data = (unsigned char *)LOW_BUFFER_START; - low_buffer_end = ((unsigned int)real_mode > LOW_BUFFER_MAX - ? LOW_BUFFER_MAX : (unsigned int)real_mode) & ~0xfff; - low_buffer_size = low_buffer_end - LOW_BUFFER_START; - high_loaded = 1; - free_mem_end_ptr = (long)high_buffer_start; - if ( (__PHYSICAL_START + low_buffer_size) > ((ulg)high_buffer_start)) { - high_buffer_start = (uch *)(__PHYSICAL_START + low_buffer_size); - mv->hcount = 0; /* say: we need not to move high_buffer */ - } - else mv->hcount = -1; - mv->high_buffer_start = high_buffer_start; -} - -static void close_output_buffer_if_we_run_high(struct moveparams *mv) -{ - if (bytes_out > low_buffer_size) { - mv->lcount = low_buffer_size; - if (mv->hcount) - mv->hcount = bytes_out - low_buffer_size; - } else { - mv->lcount = bytes_out; - mv->hcount = 0; - } -} - -int decompress_kernel(struct moveparams *mv, void *rmode) +asmlinkage void decompress_kernel(void *rmode, unsigned long heap, + uch *input_data, unsigned long input_len, uch *output) { real_mode = rmode; @@ -346,13 +351,21 @@ int decompress_kernel(struct moveparams *mv, void *rmode) lines = RM_SCREEN_INFO.orig_video_lines; cols = RM_SCREEN_INFO.orig_video_cols; - if (free_mem_ptr < 0x100000) setup_normal_output_buffer(); - else setup_output_buffer_if_we_run_high(mv); + window = output; /* Output buffer (Normally at 1M) */ + free_mem_ptr = heap; /* Heap */ + free_mem_end_ptr = heap + HEAP_SIZE; + inbuf = input_data; /* Input buffer */ + insize = input_len; + inptr = 0; + + if ((ulg)output & (__KERNEL_ALIGN - 1)) + error("Destination address not 2M aligned"); + if ((ulg)output >= 0xffffffffffUL) + error("Destination address too large"); makecrc(); putstr(".\nDecompressing Linux..."); gunzip(); putstr("done.\nBooting the kernel.\n"); - if (high_loaded) close_output_buffer_if_we_run_high(mv); - return high_loaded; + return; } diff --git a/arch/x86_64/boot/compressed/vmlinux.lds b/arch/x86_64/boot/compressed/vmlinux.lds new file mode 100644 index 0000000..94c13e5 --- /dev/null +++ b/arch/x86_64/boot/compressed/vmlinux.lds @@ -0,0 +1,44 @@ +OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", "elf64-x86-64") +OUTPUT_ARCH(i386:x86-64) +ENTRY(startup_64) +SECTIONS +{ + /* Be careful parts of head.S assume startup_32 is at + * address 0. + */ + . = 0; + .text : { + _head = . ; + *(.text.head) + _ehead = . ; + *(.text.compressed) + _text = .; /* Text */ + *(.text) + *(.text.*) + _etext = . ; + } + .rodata : { + _rodata = . ; + *(.rodata) /* read-only data */ + *(.rodata.*) + _erodata = . ; + } + .data : { + _data = . ; + *(.data) + *(.data.*) + _edata = . ; + } + .bss : { + _bss = . ; + *(.bss) + *(.bss.*) + *(COMMON) + . = ALIGN(8); + _end = . ; + . = ALIGN(4096); + pgtable = . ; + . = . + 4096 * 6; + _heap = .; + } +} diff --git a/arch/x86_64/boot/compressed/vmlinux.scr b/arch/x86_64/boot/compressed/vmlinux.scr index 1ed9d79..bd1429c 100644 --- a/arch/x86_64/boot/compressed/vmlinux.scr +++ b/arch/x86_64/boot/compressed/vmlinux.scr @@ -1,9 +1,10 @@ SECTIONS { - .data : { + .text.compressed : { input_len = .; - LONG(input_data_end - input_data) input_data = .; - *(.data) - input_data_end = .; + LONG(input_data_end - input_data) input_data = .; + *(.data) + output_len = . - 4; + input_data_end = .; } } diff --git a/arch/x86_64/boot/setup.S b/arch/x86_64/boot/setup.S index 770940c..e9e33f9 100644 --- a/arch/x86_64/boot/setup.S +++ b/arch/x86_64/boot/setup.S @@ -51,6 +51,7 @@ #include <asm/boot.h> #include <asm/e820.h> #include <asm/page.h> +#include <asm/setup.h> /* Signature words to ensure LILO loaded us right */ #define SIG1 0xAA55 @@ -80,7 +81,7 @@ start: # This is the setup header, and it must start at %cs:2 (old 0x9020:2) .ascii "HdrS" # header signature - .word 0x0204 # header version number (>= 0x0105) + .word 0x0206 # header version number (>= 0x0105) # or else old loadlin-1.5 will fail) realmode_swtch: .word 0, 0 # default_switch, SETUPSEG start_sys_seg: .word SYSSEG @@ -155,7 +156,20 @@ cmd_line_ptr: .long 0 # (Header version 0x0202 or later) # low memory 0x10000 or higher. ramdisk_max: .long 0xffffffff - +kernel_alignment: .long 0x200000 # physical addr alignment required for + # protected mode relocatable kernel +#ifdef CONFIG_RELOCATABLE +relocatable_kernel: .byte 1 +#else +relocatable_kernel: .byte 0 +#endif +pad2: .byte 0 +pad3: .word 0 + +cmdline_size: .long COMMAND_LINE_SIZE-1 #length of the command line, + #added with boot protocol + #version 2.06 + trampoline: call start_of_setup .align 16 # The offset at this point is 0x240 @@ -290,64 +304,10 @@ loader_ok: movw %cs,%ax movw %ax,%ds - /* minimum CPUID flags for x86-64 */ - /* see http://www.x86-64.org/lists/discuss/msg02971.html */ -#define SSE_MASK ((1<<25)|(1<<26)) -#define REQUIRED_MASK1 ((1<<0)|(1<<3)|(1<<4)|(1<<5)|(1<<6)|(1<<8)|\ - (1<<13)|(1<<15)|(1<<24)) -#define REQUIRED_MASK2 (1<<29) - - pushfl /* standard way to check for cpuid */ - popl %eax - movl %eax,%ebx - xorl $0x200000,%eax - pushl %eax - popfl - pushfl - popl %eax - cmpl %eax,%ebx - jz no_longmode /* cpu has no cpuid */ - movl $0x0,%eax - cpuid - cmpl $0x1,%eax - jb no_longmode /* no cpuid 1 */ - xor %di,%di - cmpl $0x68747541,%ebx /* AuthenticAMD */ - jnz noamd - cmpl $0x69746e65,%edx - jnz noamd - cmpl $0x444d4163,%ecx - jnz noamd - mov $1,%di /* cpu is from AMD */ -noamd: - movl $0x1,%eax - cpuid - andl $REQUIRED_MASK1,%edx - xorl $REQUIRED_MASK1,%edx - jnz no_longmode - movl $0x80000000,%eax - cpuid - cmpl $0x80000001,%eax - jb no_longmode /* no extended cpuid */ - movl $0x80000001,%eax - cpuid - andl $REQUIRED_MASK2,%edx - xorl $REQUIRED_MASK2,%edx - jnz no_longmode -sse_test: - movl $1,%eax - cpuid - andl $SSE_MASK,%edx - cmpl $SSE_MASK,%edx - je sse_ok - test %di,%di - jz no_longmode /* only try to force SSE on AMD */ - movl $0xc0010015,%ecx /* HWCR */ - rdmsr - btr $15,%eax /* enable SSE */ - wrmsr - xor %di,%di /* don't loop */ - jmp sse_test /* try again */ + call verify_cpu + testl %eax,%eax + jz sse_ok + no_longmode: call beep lea long_mode_panic,%si @@ -357,7 +317,8 @@ no_longmode_loop: long_mode_panic: .string "Your CPU does not support long mode. Use a 32bit distribution." .byte 0 - + +#include "../kernel/verify_cpu.S" sse_ok: popw %ds @@ -846,7 +807,7 @@ gdt_48: # Include video setup & detection code -#include "video.S" +#include "../../i386/boot/video.S" # Setup signature -- must be last setup_sig1: .word SIG1 diff --git a/arch/x86_64/boot/video.S b/arch/x86_64/boot/video.S deleted file mode 100644 index 6090516..0000000 --- a/arch/x86_64/boot/video.S +++ /dev/null @@ -1,2043 +0,0 @@ -/* video.S - * - * Display adapter & video mode setup, version 2.13 (14-May-99) - * - * Copyright (C) 1995 -- 1998 Martin Mares <mj@ucw.cz> - * Based on the original setup.S code (C) Linus Torvalds and Mats Anderson - * - * Rewritten to use GNU 'as' by Chris Noe <stiker@northlink.com> May 1999 - * - * For further information, look at Documentation/svga.txt. - * - */ - -/* Enable autodetection of SVGA adapters and modes. */ -#undef CONFIG_VIDEO_SVGA - -/* Enable autodetection of VESA modes */ -#define CONFIG_VIDEO_VESA - -/* Enable compacting of mode table */ -#define CONFIG_VIDEO_COMPACT - -/* Retain screen contents when switching modes */ -#define CONFIG_VIDEO_RETAIN - -/* Enable local mode list */ -#undef CONFIG_VIDEO_LOCAL - -/* Force 400 scan lines for standard modes (hack to fix bad BIOS behaviour */ -#undef CONFIG_VIDEO_400_HACK - -/* Hack that lets you force specific BIOS mode ID and specific dimensions */ -#undef CONFIG_VIDEO_GFX_HACK -#define VIDEO_GFX_BIOS_AX 0x4f02 /* 800x600 on ThinkPad */ -#define VIDEO_GFX_BIOS_BX 0x0102 -#define VIDEO_GFX_DUMMY_RESOLUTION 0x6425 /* 100x37 */ - -/* This code uses an extended set of video mode numbers. These include: - * Aliases for standard modes - * NORMAL_VGA (-1) - * EXTENDED_VGA (-2) - * ASK_VGA (-3) - * Video modes numbered by menu position -- NOT RECOMMENDED because of lack - * of compatibility when extending the table. These are between 0x00 and 0xff. - */ -#define VIDEO_FIRST_MENU 0x0000 - -/* Standard BIOS video modes (BIOS number + 0x0100) */ -#define VIDEO_FIRST_BIOS 0x0100 - -/* VESA BIOS video modes (VESA number + 0x0200) */ -#define VIDEO_FIRST_VESA 0x0200 - -/* Video7 special modes (BIOS number + 0x0900) */ -#define VIDEO_FIRST_V7 0x0900 - -/* Special video modes */ -#define VIDEO_FIRST_SPECIAL 0x0f00 -#define VIDEO_80x25 0x0f00 -#define VIDEO_8POINT 0x0f01 -#define VIDEO_80x43 0x0f02 -#define VIDEO_80x28 0x0f03 -#define VIDEO_CURRENT_MODE 0x0f04 -#define VIDEO_80x30 0x0f05 -#define VIDEO_80x34 0x0f06 -#define VIDEO_80x60 0x0f07 -#define VIDEO_GFX_HACK 0x0f08 -#define VIDEO_LAST_SPECIAL 0x0f09 - -/* Video modes given by resolution */ -#define VIDEO_FIRST_RESOLUTION 0x1000 - -/* The "recalculate timings" flag */ -#define VIDEO_RECALC 0x8000 - -/* Positions of various video parameters passed to the kernel */ -/* (see also include/linux/tty.h) */ -#define PARAM_CURSOR_POS 0x00 -#define PARAM_VIDEO_PAGE 0x04 -#define PARAM_VIDEO_MODE 0x06 -#define PARAM_VIDEO_COLS 0x07 -#define PARAM_VIDEO_EGA_BX 0x0a -#define PARAM_VIDEO_LINES 0x0e -#define PARAM_HAVE_VGA 0x0f -#define PARAM_FONT_POINTS 0x10 - -#define PARAM_LFB_WIDTH 0x12 -#define PARAM_LFB_HEIGHT 0x14 -#define PARAM_LFB_DEPTH 0x16 -#define PARAM_LFB_BASE 0x18 -#define PARAM_LFB_SIZE 0x1c -#define PARAM_LFB_LINELENGTH 0x24 -#define PARAM_LFB_COLORS 0x26 -#define PARAM_VESAPM_SEG 0x2e -#define PARAM_VESAPM_OFF 0x30 -#define PARAM_LFB_PAGES 0x32 -#define PARAM_VESA_ATTRIB 0x34 -#define PARAM_CAPABILITIES 0x36 - -/* Define DO_STORE according to CONFIG_VIDEO_RETAIN */ -#ifdef CONFIG_VIDEO_RETAIN -#define DO_STORE call store_screen -#else -#define DO_STORE -#endif /* CONFIG_VIDEO_RETAIN */ - -# This is the main entry point called by setup.S -# %ds *must* be pointing to the bootsector -video: pushw %ds # We use different segments - pushw %ds # FS contains original DS - popw %fs - pushw %cs # DS is equal to CS - popw %ds - pushw %cs # ES is equal to CS - popw %es - xorw %ax, %ax - movw %ax, %gs # GS is zero - cld - call basic_detect # Basic adapter type testing (EGA/VGA/MDA/CGA) -#ifdef CONFIG_VIDEO_SELECT - movw %fs:(0x01fa), %ax # User selected video mode - cmpw $ASK_VGA, %ax # Bring up the menu - jz vid2 - - call mode_set # Set the mode - jc vid1 - - leaw badmdt, %si # Invalid mode ID - call prtstr -vid2: call mode_menu -vid1: -#ifdef CONFIG_VIDEO_RETAIN - call restore_screen # Restore screen contents -#endif /* CONFIG_VIDEO_RETAIN */ - call store_edid -#endif /* CONFIG_VIDEO_SELECT */ - call mode_params # Store mode parameters - popw %ds # Restore original DS - ret - -# Detect if we have CGA, MDA, EGA or VGA and pass it to the kernel. -basic_detect: - movb $0, %fs:(PARAM_HAVE_VGA) - movb $0x12, %ah # Check EGA/VGA - movb $0x10, %bl - int $0x10 - movw %bx, %fs:(PARAM_VIDEO_EGA_BX) # Identifies EGA to the kernel - cmpb $0x10, %bl # No, it's a CGA/MDA/HGA card. - je basret - - incb adapter - movw $0x1a00, %ax # Check EGA or VGA? - int $0x10 - cmpb $0x1a, %al # 1a means VGA... - jne basret # anything else is EGA. - - incb %fs:(PARAM_HAVE_VGA) # We've detected a VGA - incb adapter -basret: ret - -# Store the video mode parameters for later usage by the kernel. -# This is done by asking the BIOS except for the rows/columns -# parameters in the default 80x25 mode -- these are set directly, -# because some very obscure BIOSes supply insane values. -mode_params: -#ifdef CONFIG_VIDEO_SELECT - cmpb $0, graphic_mode - jnz mopar_gr -#endif - movb $0x03, %ah # Read cursor position - xorb %bh, %bh - int $0x10 - movw %dx, %fs:(PARAM_CURSOR_POS) - movb $0x0f, %ah # Read page/mode/width - int $0x10 - movw %bx, %fs:(PARAM_VIDEO_PAGE) - movw %ax, %fs:(PARAM_VIDEO_MODE) # Video mode and screen width - cmpb $0x7, %al # MDA/HGA => segment differs - jnz mopar0 - - movw $0xb000, video_segment -mopar0: movw %gs:(0x485), %ax # Font size - movw %ax, %fs:(PARAM_FONT_POINTS) # (valid only on EGA/VGA) - movw force_size, %ax # Forced size? - orw %ax, %ax - jz mopar1 - - movb %ah, %fs:(PARAM_VIDEO_COLS) - movb %al, %fs:(PARAM_VIDEO_LINES) - ret - -mopar1: movb $25, %al - cmpb $0, adapter # If we are on CGA/MDA/HGA, the - jz mopar2 # screen must have 25 lines. - - movb %gs:(0x484), %al # On EGA/VGA, use the EGA+ BIOS - incb %al # location of max lines. -mopar2: movb %al, %fs:(PARAM_VIDEO_LINES) - ret - -#ifdef CONFIG_VIDEO_SELECT -# Fetching of VESA frame buffer parameters -mopar_gr: - leaw modelist+1024, %di - movb $0x23, %fs:(PARAM_HAVE_VGA) - movw 16(%di), %ax - movw %ax, %fs:(PARAM_LFB_LINELENGTH) - movw 18(%di), %ax - movw %ax, %fs:(PARAM_LFB_WIDTH) - movw 20(%di), %ax - movw %ax, %fs:(PARAM_LFB_HEIGHT) - movb 25(%di), %al - movb $0, %ah - movw %ax, %fs:(PARAM_LFB_DEPTH) - movb 29(%di), %al - movb $0, %ah - movw %ax, %fs:(PARAM_LFB_PAGES) - movl 40(%di), %eax - movl %eax, %fs:(PARAM_LFB_BASE) - movl 31(%di), %eax - movl %eax, %fs:(PARAM_LFB_COLORS) - movl 35(%di), %eax - movl %eax, %fs:(PARAM_LFB_COLORS+4) - movw 0(%di), %ax - movw %ax, %fs:(PARAM_VESA_ATTRIB) - -# get video mem size - leaw modelist+1024, %di - movw $0x4f00, %ax - int $0x10 - xorl %eax, %eax - movw 18(%di), %ax - movl %eax, %fs:(PARAM_LFB_SIZE) - -# store mode capabilities - movl 10(%di), %eax - movl %eax, %fs:(PARAM_CAPABILITIES) - -# switching the DAC to 8-bit is for <= 8 bpp only - movw %fs:(PARAM_LFB_DEPTH), %ax - cmpw $8, %ax - jg dac_done - -# get DAC switching capability - xorl %eax, %eax - movb 10(%di), %al - testb $1, %al - jz dac_set - -# attempt to switch DAC to 8-bit - movw $0x4f08, %ax - movw $0x0800, %bx - int $0x10 - cmpw $0x004f, %ax - jne dac_set - movb %bh, dac_size # store actual DAC size - -dac_set: -# set color size to DAC size - movb dac_size, %al - movb %al, %fs:(PARAM_LFB_COLORS+0) - movb %al, %fs:(PARAM_LFB_COLORS+2) - movb %al, %fs:(PARAM_LFB_COLORS+4) - movb %al, %fs:(PARAM_LFB_COLORS+6) - -# set color offsets to 0 - movb $0, %fs:(PARAM_LFB_COLORS+1) - movb $0, %fs:(PARAM_LFB_COLORS+3) - movb $0, %fs:(PARAM_LFB_COLORS+5) - movb $0, %fs:(PARAM_LFB_COLORS+7) - -dac_done: -# get protected mode interface informations - movw $0x4f0a, %ax - xorw %bx, %bx - xorw %di, %di - int $0x10 - cmp $0x004f, %ax - jnz no_pm - - movw %es, %fs:(PARAM_VESAPM_SEG) - movw %di, %fs:(PARAM_VESAPM_OFF) -no_pm: ret - -# The video mode menu -mode_menu: - leaw keymsg, %si # "Return/Space/Timeout" message - call prtstr - call flush -nokey: call getkt - - cmpb $0x0d, %al # ENTER ? - je listm # yes - manual mode selection - - cmpb $0x20, %al # SPACE ? - je defmd1 # no - repeat - - call beep - jmp nokey - -defmd1: ret # No mode chosen? Default 80x25 - -listm: call mode_table # List mode table -listm0: leaw name_bann, %si # Print adapter name - call prtstr - movw card_name, %si - orw %si, %si - jnz an2 - - movb adapter, %al - leaw old_name, %si - orb %al, %al - jz an1 - - leaw ega_name, %si - decb %al - jz an1 - - leaw vga_name, %si - jmp an1 - -an2: call prtstr - leaw svga_name, %si -an1: call prtstr - leaw listhdr, %si # Table header - call prtstr - movb $0x30, %dl # DL holds mode number - leaw modelist, %si -lm1: cmpw $ASK_VGA, (%si) # End? - jz lm2 - - movb %dl, %al # Menu selection number - call prtchr - call prtsp2 - lodsw - call prthw # Mode ID - call prtsp2 - movb 0x1(%si), %al - call prtdec # Rows - movb $0x78, %al # the letter 'x' - call prtchr - lodsw - call prtdec # Columns - movb $0x0d, %al # New line - call prtchr - movb $0x0a, %al - call prtchr - incb %dl # Next character - cmpb $0x3a, %dl - jnz lm1 - - movb $0x61, %dl - jmp lm1 - -lm2: leaw prompt, %si # Mode prompt - call prtstr - leaw edit_buf, %di # Editor buffer -lm3: call getkey - cmpb $0x0d, %al # Enter? - jz lment - - cmpb $0x08, %al # Backspace? - jz lmbs - - cmpb $0x20, %al # Printable? - jc lm3 - - cmpw $edit_buf+4, %di # Enough space? - jz lm3 - - stosb - call prtchr - jmp lm3 - -lmbs: cmpw $edit_buf, %di # Backspace - jz lm3 - - decw %di - movb $0x08, %al - call prtchr - call prtspc - movb $0x08, %al - call prtchr - jmp lm3 - -lment: movb $0, (%di) - leaw crlft, %si - call prtstr - leaw edit_buf, %si - cmpb $0, (%si) # Empty string = default mode - jz lmdef - - cmpb $0, 1(%si) # One character = menu selection - jz mnusel - - cmpw $0x6373, (%si) # "scan" => mode scanning - jnz lmhx - - cmpw $0x6e61, 2(%si) - jz lmscan - -lmhx: xorw %bx, %bx # Else => mode ID in hex -lmhex: lodsb - orb %al, %al - jz lmuse1 - - subb $0x30, %al - jc lmbad - - cmpb $10, %al - jc lmhx1 - - subb $7, %al - andb $0xdf, %al - cmpb $10, %al - jc lmbad - - cmpb $16, %al - jnc lmbad - -lmhx1: shlw $4, %bx - orb %al, %bl - jmp lmhex - -lmuse1: movw %bx, %ax - jmp lmuse - -mnusel: lodsb # Menu selection - xorb %ah, %ah - subb $0x30, %al - jc lmbad - - cmpb $10, %al - jc lmuse - - cmpb $0x61-0x30, %al - jc lmbad - - subb $0x61-0x30-10, %al - cmpb $36, %al - jnc lmbad - -lmuse: call mode_set - jc lmdef - -lmbad: leaw unknt, %si - call prtstr - jmp lm2 -lmscan: cmpb $0, adapter # Scanning only on EGA/VGA - jz lmbad - - movw $0, mt_end # Scanning of modes is - movb $1, scanning # done as new autodetection. - call mode_table - jmp listm0 -lmdef: ret - -# Additional parts of mode_set... (relative jumps, you know) -setv7: # Video7 extended modes - DO_STORE - subb $VIDEO_FIRST_V7>>8, %bh - movw $0x6f05, %ax - int $0x10 - stc - ret - -_setrec: jmp setrec # Ugly... -_set_80x25: jmp set_80x25 - -# Aliases for backward compatibility. -setalias: - movw $VIDEO_80x25, %ax - incw %bx - jz mode_set - - movb $VIDEO_8POINT-VIDEO_FIRST_SPECIAL, %al - incw %bx - jnz setbad # Fall-through! - -# Setting of user mode (AX=mode ID) => CF=success -mode_set: - movw %ax, %fs:(0x01fa) # Store mode for use in acpi_wakeup.S - movw %ax, %bx - cmpb $0xff, %ah - jz setalias - - testb $VIDEO_RECALC>>8, %ah - jnz _setrec - - cmpb $VIDEO_FIRST_RESOLUTION>>8, %ah - jnc setres - - cmpb $VIDEO_FIRST_SPECIAL>>8, %ah - jz setspc - - cmpb $VIDEO_FIRST_V7>>8, %ah - jz setv7 - - cmpb $VIDEO_FIRST_VESA>>8, %ah - jnc check_vesa - - orb %ah, %ah - jz setmenu - - decb %ah - jz setbios - -setbad: clc - movb $0, do_restore # The screen needn't be restored - ret - -setvesa: - DO_STORE - subb $VIDEO_FIRST_VESA>>8, %bh - movw $0x4f02, %ax # VESA BIOS mode set call - int $0x10 - cmpw $0x004f, %ax # AL=4f if implemented - jnz setbad # AH=0 if OK - - stc - ret - -setbios: - DO_STORE - int $0x10 # Standard BIOS mode set call - pushw %bx - movb $0x0f, %ah # Check if really set - int $0x10 - popw %bx - cmpb %bl, %al - jnz setbad - - stc - ret - -setspc: xorb %bh, %bh # Set special mode - cmpb $VIDEO_LAST_SPECIAL-VIDEO_FIRST_SPECIAL, %bl - jnc setbad - - addw %bx, %bx - jmp *spec_inits(%bx) - -setmenu: - orb %al, %al # 80x25 is an exception - jz _set_80x25 - - pushw %bx # Set mode chosen from menu - call mode_table # Build the mode table - popw %ax - shlw $2, %ax - addw %ax, %si - cmpw %di, %si - jnc setbad - - movw (%si), %ax # Fetch mode ID -_m_s: jmp mode_set - -setres: pushw %bx # Set mode chosen by resolution - call mode_table - popw %bx - xchgb %bl, %bh -setr1: lodsw - cmpw $ASK_VGA, %ax # End of the list? - jz setbad - - lodsw - cmpw %bx, %ax - jnz setr1 - - movw -4(%si), %ax # Fetch mode ID - jmp _m_s - -check_vesa: -#ifdef CONFIG_FIRMWARE_EDID - leaw modelist+1024, %di - movw $0x4f00, %ax - int $0x10 - cmpw $0x004f, %ax - jnz setbad - - movw 4(%di), %ax - movw %ax, vbe_version -#endif - leaw modelist+1024, %di - subb $VIDEO_FIRST_VESA>>8, %bh - movw %bx, %cx # Get mode information structure - movw $0x4f01, %ax - int $0x10 - addb $VIDEO_FIRST_VESA>>8, %bh - cmpw $0x004f, %ax - jnz setbad - - movb (%di), %al # Check capabilities. - andb $0x19, %al - cmpb $0x09, %al - jz setvesa # This is a text mode - - movb (%di), %al # Check capabilities. - andb $0x99, %al - cmpb $0x99, %al - jnz _setbad # Doh! No linear frame buffer. - - subb $VIDEO_FIRST_VESA>>8, %bh - orw $0x4000, %bx # Use linear frame buffer - movw $0x4f02, %ax # VESA BIOS mode set call - int $0x10 - cmpw $0x004f, %ax # AL=4f if implemented - jnz _setbad # AH=0 if OK - - movb $1, graphic_mode # flag graphic mode - movb $0, do_restore # no screen restore - stc - ret - -_setbad: jmp setbad # Ugly... - -# Recalculate vertical display end registers -- this fixes various -# inconsistencies of extended modes on many adapters. Called when -# the VIDEO_RECALC flag is set in the mode ID. - -setrec: subb $VIDEO_RECALC>>8, %ah # Set the base mode - call mode_set - jnc rct3 - - movw %gs:(0x485), %ax # Font size in pixels - movb %gs:(0x484), %bl # Number of rows - incb %bl - mulb %bl # Number of visible - decw %ax # scan lines - 1 - movw $0x3d4, %dx - movw %ax, %bx - movb $0x12, %al # Lower 8 bits - movb %bl, %ah - outw %ax, %dx - movb $0x07, %al # Bits 8 and 9 in the overflow register - call inidx - xchgb %al, %ah - andb $0xbd, %ah - shrb %bh - jnc rct1 - orb $0x02, %ah -rct1: shrb %bh - jnc rct2 - orb $0x40, %ah -rct2: movb $0x07, %al - outw %ax, %dx - stc -rct3: ret - -# Table of routines for setting of the special modes. -spec_inits: - .word set_80x25 - .word set_8pixel - .word set_80x43 - .word set_80x28 - .word set_current - .word set_80x30 - .word set_80x34 - .word set_80x60 - .word set_gfx - -# Set the 80x25 mode. If already set, do nothing. -set_80x25: - movw $0x5019, force_size # Override possibly broken BIOS -use_80x25: -#ifdef CONFIG_VIDEO_400_HACK - movw $0x1202, %ax # Force 400 scan lines - movb $0x30, %bl - int $0x10 -#else - movb $0x0f, %ah # Get current mode ID - int $0x10 - cmpw $0x5007, %ax # Mode 7 (80x25 mono) is the only one available - jz st80 # on CGA/MDA/HGA and is also available on EGAM - - cmpw $0x5003, %ax # Unknown mode, force 80x25 color - jnz force3 - -st80: cmpb $0, adapter # CGA/MDA/HGA => mode 3/7 is always 80x25 - jz set80 - - movb %gs:(0x0484), %al # This is EGA+ -- beware of 80x50 etc. - orb %al, %al # Some buggy BIOS'es set 0 rows - jz set80 - - cmpb $24, %al # It's hopefully correct - jz set80 -#endif /* CONFIG_VIDEO_400_HACK */ -force3: DO_STORE - movw $0x0003, %ax # Forced set - int $0x10 -set80: stc - ret - -# Set the 80x50/80x43 8-pixel mode. Simple BIOS calls. -set_8pixel: - DO_STORE - call use_80x25 # The base is 80x25 -set_8pt: - movw $0x1112, %ax # Use 8x8 font - xorb %bl, %bl - int $0x10 - movw $0x1200, %ax # Use alternate print screen - movb $0x20, %bl - int $0x10 - movw $0x1201, %ax # Turn off cursor emulation - movb $0x34, %bl - int $0x10 - movb $0x01, %ah # Define cursor scan lines 6-7 - movw $0x0607, %cx - int $0x10 -set_current: - stc - ret - -# Set the 80x28 mode. This mode works on all VGA's, because it's a standard -# 80x25 mode with 14-point fonts instead of 16-point. -set_80x28: - DO_STORE - call use_80x25 # The base is 80x25 -set14: movw $0x1111, %ax # Use 9x14 font - xorb %bl, %bl - int $0x10 - movb $0x01, %ah # Define cursor scan lines 11-12 - movw $0x0b0c, %cx - int $0x10 - stc - ret - -# Set the 80x43 mode. This mode is works on all VGA's. -# It's a 350-scanline mode with 8-pixel font. -set_80x43: - DO_STORE - movw $0x1201, %ax # Set 350 scans - movb $0x30, %bl - int $0x10 - movw $0x0003, %ax # Reset video mode - int $0x10 - jmp set_8pt # Use 8-pixel font - -# Set the 80x30 mode (all VGA's). 480 scanlines, 16-pixel font. -set_80x30: - call use_80x25 # Start with real 80x25 - DO_STORE - movw $0x3cc, %dx # Get CRTC port - inb %dx, %al - movb $0xd4, %dl - rorb %al # Mono or color? - jc set48a - - movb $0xb4, %dl -set48a: movw $0x0c11, %ax # Vertical sync end (also unlocks CR0-7) - call outidx - movw $0x0b06, %ax # Vertical total - call outidx - movw $0x3e07, %ax # (Vertical) overflow - call outidx - movw $0xea10, %ax # Vertical sync start - call outidx - movw $0xdf12, %ax # Vertical display end - call outidx - movw $0xe715, %ax # Vertical blank start - call outidx - movw $0x0416, %ax # Vertical blank end - call outidx - pushw %dx - movb $0xcc, %dl # Misc output register (read) - inb %dx, %al - movb $0xc2, %dl # (write) - andb $0x0d, %al # Preserve clock select bits and color bit - orb $0xe2, %al # Set correct sync polarity - outb %al, %dx - popw %dx - movw $0x501e, force_size - stc # That's all. - ret - -# Set the 80x34 mode (all VGA's). 480 scans, 14-pixel font. -set_80x34: - call set_80x30 # Set 480 scans - call set14 # And 14-pt font - movw $0xdb12, %ax # VGA vertical display end - movw $0x5022, force_size -setvde: call outidx - stc - ret - -# Set the 80x60 mode (all VGA's). 480 scans, 8-pixel font. -set_80x60: - call set_80x30 # Set 480 scans - call set_8pt # And 8-pt font - movw $0xdf12, %ax # VGA vertical display end - movw $0x503c, force_size - jmp setvde - -# Special hack for ThinkPad graphics -set_gfx: -#ifdef CONFIG_VIDEO_GFX_HACK - movw $VIDEO_GFX_BIOS_AX, %ax - movw $VIDEO_GFX_BIOS_BX, %bx - int $0x10 - movw $VIDEO_GFX_DUMMY_RESOLUTION, force_size - stc -#endif - ret - -#ifdef CONFIG_VIDEO_RETAIN - -# Store screen contents to temporary buffer. -store_screen: - cmpb $0, do_restore # Already stored? - jnz stsr - - testb $CAN_USE_HEAP, loadflags # Have we space for storing? - jz stsr - - pushw %ax - pushw %bx - pushw force_size # Don't force specific size - movw $0, force_size - call mode_params # Obtain params of current mode - popw force_size - movb %fs:(PARAM_VIDEO_LINES), %ah - movb %fs:(PARAM_VIDEO_COLS), %al - movw %ax, %bx # BX=dimensions - mulb %ah - movw %ax, %cx # CX=number of characters - addw %ax, %ax # Calculate image size - addw $modelist+1024+4, %ax - cmpw heap_end_ptr, %ax - jnc sts1 # Unfortunately, out of memory - - movw %fs:(PARAM_CURSOR_POS), %ax # Store mode params - leaw modelist+1024, %di - stosw - movw %bx, %ax - stosw - pushw %ds # Store the screen - movw video_segment, %ds - xorw %si, %si - rep - movsw - popw %ds - incb do_restore # Screen will be restored later -sts1: popw %bx - popw %ax -stsr: ret - -# Restore screen contents from temporary buffer. -restore_screen: - cmpb $0, do_restore # Has the screen been stored? - jz res1 - - call mode_params # Get parameters of current mode - movb %fs:(PARAM_VIDEO_LINES), %cl - movb %fs:(PARAM_VIDEO_COLS), %ch - leaw modelist+1024, %si # Screen buffer - lodsw # Set cursor position - movw %ax, %dx - cmpb %cl, %dh - jc res2 - - movb %cl, %dh - decb %dh -res2: cmpb %ch, %dl - jc res3 - - movb %ch, %dl - decb %dl -res3: movb $0x02, %ah - movb $0x00, %bh - int $0x10 - lodsw # Display size - movb %ah, %dl # DL=number of lines - movb $0, %ah # BX=phys. length of orig. line - movw %ax, %bx - cmpb %cl, %dl # Too many? - jc res4 - - pushw %ax - movb %dl, %al - subb %cl, %al - mulb %bl - addw %ax, %si - addw %ax, %si - popw %ax - movb %cl, %dl -res4: cmpb %ch, %al # Too wide? - jc res5 - - movb %ch, %al # AX=width of src. line -res5: movb $0, %cl - xchgb %ch, %cl - movw %cx, %bp # BP=width of dest. line - pushw %es - movw video_segment, %es - xorw %di, %di # Move the data - addw %bx, %bx # Convert BX and BP to _bytes_ - addw %bp, %bp -res6: pushw %si - pushw %di - movw %ax, %cx - rep - movsw - popw %di - popw %si - addw %bp, %di - addw %bx, %si - decb %dl - jnz res6 - - popw %es # Done -res1: ret -#endif /* CONFIG_VIDEO_RETAIN */ - -# Write to indexed VGA register (AL=index, AH=data, DX=index reg. port) -outidx: outb %al, %dx - pushw %ax - movb %ah, %al - incw %dx - outb %al, %dx - decw %dx - popw %ax - ret - -# Build the table of video modes (stored after the setup.S code at the -# `modelist' label. Each video mode record looks like: -# .word MODE-ID (our special mode ID (see above)) -# .byte rows (number of rows) -# .byte columns (number of columns) -# Returns address of the end of the table in DI, the end is marked -# with a ASK_VGA ID. -mode_table: - movw mt_end, %di # Already filled? - orw %di, %di - jnz mtab1x - - leaw modelist, %di # Store standard modes: - movl $VIDEO_80x25 + 0x50190000, %eax # The 80x25 mode (ALL) - stosl - movb adapter, %al # CGA/MDA/HGA -- no more modes - orb %al, %al - jz mtabe - - decb %al - jnz mtabv - - movl $VIDEO_8POINT + 0x502b0000, %eax # The 80x43 EGA mode - stosl - jmp mtabe - -mtab1x: jmp mtab1 - -mtabv: leaw vga_modes, %si # All modes for std VGA - movw $vga_modes_end-vga_modes, %cx - rep # I'm unable to use movsw as I don't know how to store a half - movsb # of the expression above to cx without using explicit shr. - - cmpb $0, scanning # Mode scan requested? - jz mscan1 - - call mode_scan -mscan1: - -#ifdef CONFIG_VIDEO_LOCAL - call local_modes -#endif /* CONFIG_VIDEO_LOCAL */ - -#ifdef CONFIG_VIDEO_VESA - call vesa_modes # Detect VESA VGA modes -#endif /* CONFIG_VIDEO_VESA */ - -#ifdef CONFIG_VIDEO_SVGA - cmpb $0, scanning # Bypass when scanning - jnz mscan2 - - call svga_modes # Detect SVGA cards & modes -mscan2: -#endif /* CONFIG_VIDEO_SVGA */ - -mtabe: - -#ifdef CONFIG_VIDEO_COMPACT - leaw modelist, %si - movw %di, %dx - movw %si, %di -cmt1: cmpw %dx, %si # Scan all modes - jz cmt2 - - leaw modelist, %bx # Find in previous entries - movw 2(%si), %cx -cmt3: cmpw %bx, %si - jz cmt4 - - cmpw 2(%bx), %cx # Found => don't copy this entry - jz cmt5 - - addw $4, %bx - jmp cmt3 - -cmt4: movsl # Copy entry - jmp cmt1 - -cmt5: addw $4, %si # Skip entry - jmp cmt1 - -cmt2: -#endif /* CONFIG_VIDEO_COMPACT */ - - movw $ASK_VGA, (%di) # End marker - movw %di, mt_end -mtab1: leaw modelist, %si # SI=mode list, DI=list end -ret0: ret - -# Modes usable on all standard VGAs -vga_modes: - .word VIDEO_8POINT - .word 0x5032 # 80x50 - .word VIDEO_80x43 - .word 0x502b # 80x43 - .word VIDEO_80x28 - .word 0x501c # 80x28 - .word VIDEO_80x30 - .word 0x501e # 80x30 - .word VIDEO_80x34 - .word 0x5022 # 80x34 - .word VIDEO_80x60 - .word 0x503c # 80x60 -#ifdef CONFIG_VIDEO_GFX_HACK - .word VIDEO_GFX_HACK - .word VIDEO_GFX_DUMMY_RESOLUTION -#endif - -vga_modes_end: -# Detect VESA modes. - -#ifdef CONFIG_VIDEO_VESA -vesa_modes: - cmpb $2, adapter # VGA only - jnz ret0 - - movw %di, %bp # BP=original mode table end - addw $0x200, %di # Buffer space - movw $0x4f00, %ax # VESA Get card info call - int $0x10 - movw %bp, %di - cmpw $0x004f, %ax # Successful? - jnz ret0 - - cmpw $0x4556, 0x200(%di) - jnz ret0 - - cmpw $0x4153, 0x202(%di) - jnz ret0 - - movw $vesa_name, card_name # Set name to "VESA VGA" - pushw %gs - lgsw 0x20e(%di), %si # GS:SI=mode list - movw $128, %cx # Iteration limit -vesa1: -# gas version 2.9.1, using BFD version 2.9.1.0.23 buggers the next inst. -# XXX: lodsw %gs:(%si), %ax # Get next mode in the list - gs; lodsw - cmpw $0xffff, %ax # End of the table? - jz vesar - - cmpw $0x0080, %ax # Check validity of mode ID - jc vesa2 - - orb %ah, %ah # Valid IDs: 0x0000-0x007f/0x0100-0x07ff - jz vesan # Certain BIOSes report 0x80-0xff! - - cmpw $0x0800, %ax - jnc vesae - -vesa2: pushw %cx - movw %ax, %cx # Get mode information structure - movw $0x4f01, %ax - int $0x10 - movw %cx, %bx # BX=mode number - addb $VIDEO_FIRST_VESA>>8, %bh - popw %cx - cmpw $0x004f, %ax - jnz vesan # Don't report errors (buggy BIOSES) - - movb (%di), %al # Check capabilities. We require - andb $0x19, %al # a color text mode. - cmpb $0x09, %al - jnz vesan - - cmpw $0xb800, 8(%di) # Standard video memory address required - jnz vesan - - testb $2, (%di) # Mode characteristics supplied? - movw %bx, (%di) # Store mode number - jz vesa3 - - xorw %dx, %dx - movw 0x12(%di), %bx # Width - orb %bh, %bh - jnz vesan - - movb %bl, 0x3(%di) - movw 0x14(%di), %ax # Height - orb %ah, %ah - jnz vesan - - movb %al, 2(%di) - mulb %bl - cmpw $8193, %ax # Small enough for Linux console driver? - jnc vesan - - jmp vesaok - -vesa3: subw $0x8108, %bx # This mode has no detailed info specified, - jc vesan # so it must be a standard VESA mode. - - cmpw $5, %bx - jnc vesan - - movw vesa_text_mode_table(%bx), %ax - movw %ax, 2(%di) -vesaok: addw $4, %di # The mode is valid. Store it. -vesan: loop vesa1 # Next mode. Limit exceeded => error -vesae: leaw vesaer, %si - call prtstr - movw %bp, %di # Discard already found modes. -vesar: popw %gs - ret - -# Dimensions of standard VESA text modes -vesa_text_mode_table: - .byte 60, 80 # 0108 - .byte 25, 132 # 0109 - .byte 43, 132 # 010A - .byte 50, 132 # 010B - .byte 60, 132 # 010C -#endif /* CONFIG_VIDEO_VESA */ - -# Scan for video modes. A bit dirty, but should work. -mode_scan: - movw $0x0100, %cx # Start with mode 0 -scm1: movb $0, %ah # Test the mode - movb %cl, %al - int $0x10 - movb $0x0f, %ah - int $0x10 - cmpb %cl, %al - jnz scm2 # Mode not set - - movw $0x3c0, %dx # Test if it's a text mode - movb $0x10, %al # Mode bits - call inidx - andb $0x03, %al - jnz scm2 - - movb $0xce, %dl # Another set of mode bits - movb $0x06, %al - call inidx - shrb %al - jc scm2 - - movb $0xd4, %dl # Cursor location - movb $0x0f, %al - call inidx - orb %al, %al - jnz scm2 - - movw %cx, %ax # Ok, store the mode - stosw - movb %gs:(0x484), %al # Number of rows - incb %al - stosb - movw %gs:(0x44a), %ax # Number of columns - stosb -scm2: incb %cl - jns scm1 - - movw $0x0003, %ax # Return back to mode 3 - int $0x10 - ret - -tstidx: outw %ax, %dx # OUT DX,AX and inidx -inidx: outb %al, %dx # Read from indexed VGA register - incw %dx # AL=index, DX=index reg port -> AL=data - inb %dx, %al - decw %dx - ret - -# Try to detect type of SVGA card and supply (usually approximate) video -# mode table for it. - -#ifdef CONFIG_VIDEO_SVGA -svga_modes: - leaw svga_table, %si # Test all known SVGA adapters -dosvga: lodsw - movw %ax, %bp # Default mode table - orw %ax, %ax - jz didsv1 - - lodsw # Pointer to test routine - pushw %si - pushw %di - pushw %es - movw $0xc000, %bx - movw %bx, %es - call *%ax # Call test routine - popw %es - popw %di - popw %si - orw %bp, %bp - jz dosvga - - movw %bp, %si # Found, copy the modes - movb svga_prefix, %ah -cpsvga: lodsb - orb %al, %al - jz didsv - - stosw - movsw - jmp cpsvga - -didsv: movw %si, card_name # Store pointer to card name -didsv1: ret - -# Table of all known SVGA cards. For each card, we store a pointer to -# a table of video modes supported by the card and a pointer to a routine -# used for testing of presence of the card. The video mode table is always -# followed by the name of the card or the chipset. -svga_table: - .word ati_md, ati_test - .word oak_md, oak_test - .word paradise_md, paradise_test - .word realtek_md, realtek_test - .word s3_md, s3_test - .word chips_md, chips_test - .word video7_md, video7_test - .word cirrus5_md, cirrus5_test - .word cirrus6_md, cirrus6_test - .word cirrus1_md, cirrus1_test - .word ahead_md, ahead_test - .word everex_md, everex_test - .word genoa_md, genoa_test - .word trident_md, trident_test - .word tseng_md, tseng_test - .word 0 - -# Test routines and mode tables: - -# S3 - The test algorithm was taken from the SuperProbe package -# for XFree86 1.2.1. Report bugs to Christoph.Niemann@linux.org -s3_test: - movw $0x0f35, %cx # we store some constants in cl/ch - movw $0x03d4, %dx - movb $0x38, %al - call inidx - movb %al, %bh # store current CRT-register 0x38 - movw $0x0038, %ax - call outidx # disable writing to special regs - movb %cl, %al # check whether we can write special reg 0x35 - call inidx - movb %al, %bl # save the current value of CRT reg 0x35 - andb $0xf0, %al # clear bits 0-3 - movb %al, %ah - movb %cl, %al # and write it to CRT reg 0x35 - call outidx - call inidx # now read it back - andb %ch, %al # clear the upper 4 bits - jz s3_2 # the first test failed. But we have a - - movb %bl, %ah # second chance - movb %cl, %al - call outidx - jmp s3_1 # do the other tests - -s3_2: movw %cx, %ax # load ah with 0xf and al with 0x35 - orb %bl, %ah # set the upper 4 bits of ah with the orig value - call outidx # write ... - call inidx # ... and reread - andb %cl, %al # turn off the upper 4 bits - pushw %ax - movb %bl, %ah # restore old value in register 0x35 - movb %cl, %al - call outidx - popw %ax - cmpb %ch, %al # setting lower 4 bits was successful => bad - je no_s3 # writing is allowed => this is not an S3 - -s3_1: movw $0x4838, %ax # allow writing to special regs by putting - call outidx # magic number into CRT-register 0x38 - movb %cl, %al # check whether we can write special reg 0x35 - call inidx - movb %al, %bl - andb $0xf0, %al - movb %al, %ah - movb %cl, %al - call outidx - call inidx - andb %ch, %al - jnz no_s3 # no, we can't write => no S3 - - movw %cx, %ax - orb %bl, %ah - call outidx - call inidx - andb %ch, %al - pushw %ax - movb %bl, %ah # restore old value in register 0x35 - movb %cl, %al - call outidx - popw %ax - cmpb %ch, %al - jne no_s31 # writing not possible => no S3 - movb $0x30, %al - call inidx # now get the S3 id ... - leaw idS3, %di - movw $0x10, %cx - repne - scasb - je no_s31 - - movb %bh, %ah - movb $0x38, %al - jmp s3rest - -no_s3: movb $0x35, %al # restore CRT register 0x35 - movb %bl, %ah - call outidx -no_s31: xorw %bp, %bp # Detection failed -s3rest: movb %bh, %ah - movb $0x38, %al # restore old value of CRT register 0x38 - jmp outidx - -idS3: .byte 0x81, 0x82, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95 - .byte 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa8, 0xb0 - -s3_md: .byte 0x54, 0x2b, 0x84 - .byte 0x55, 0x19, 0x84 - .byte 0 - .ascii "S3" - .byte 0 - -# ATI cards. -ati_test: - leaw idati, %si - movw $0x31, %di - movw $0x09, %cx - repe - cmpsb - je atiok - - xorw %bp, %bp -atiok: ret - -idati: .ascii "761295520" - -ati_md: .byte 0x23, 0x19, 0x84 - .byte 0x33, 0x2c, 0x84 - .byte 0x22, 0x1e, 0x64 - .byte 0x21, 0x19, 0x64 - .byte 0x58, 0x21, 0x50 - .byte 0x5b, 0x1e, 0x50 - .byte 0 - .ascii "ATI" - .byte 0 - -# AHEAD -ahead_test: - movw $0x200f, %ax - movw $0x3ce, %dx - outw %ax, %dx - incw %dx - inb %dx, %al - cmpb $0x20, %al - je isahed - - cmpb $0x21, %al - je isahed - - xorw %bp, %bp -isahed: ret - -ahead_md: - .byte 0x22, 0x2c, 0x84 - .byte 0x23, 0x19, 0x84 - .byte 0x24, 0x1c, 0x84 - .byte 0x2f, 0x32, 0xa0 - .byte 0x32, 0x22, 0x50 - .byte 0x34, 0x42, 0x50 - .byte 0 - .ascii "Ahead" - .byte 0 - -# Chips & Tech. -chips_test: - movw $0x3c3, %dx - inb %dx, %al - orb $0x10, %al - outb %al, %dx - movw $0x104, %dx - inb %dx, %al - movb %al, %bl - movw $0x3c3, %dx - inb %dx, %al - andb $0xef, %al - outb %al, %dx - cmpb $0xa5, %bl - je cantok - - xorw %bp, %bp -cantok: ret - -chips_md: - .byte 0x60, 0x19, 0x84 - .byte 0x61, 0x32, 0x84 - .byte 0 - .ascii "Chips & Technologies" - .byte 0 - -# Cirrus Logic 5X0 -cirrus1_test: - movw $0x3d4, %dx - movb $0x0c, %al - outb %al, %dx - incw %dx - inb %dx, %al - movb %al, %bl - xorb %al, %al - outb %al, %dx - decw %dx - movb $0x1f, %al - outb %al, %dx - incw %dx - inb %dx, %al - movb %al, %bh - xorb %ah, %ah - shlb $4, %al - movw %ax, %cx - movb %bh, %al - shrb $4, %al - addw %ax, %cx - shlw $8, %cx - addw $6, %cx - movw %cx, %ax - movw $0x3c4, %dx - outw %ax, %dx - incw %dx - inb %dx, %al - andb %al, %al - jnz nocirr - - movb %bh, %al - outb %al, %dx - inb %dx, %al - cmpb $0x01, %al - je iscirr - -nocirr: xorw %bp, %bp -iscirr: movw $0x3d4, %dx - movb %bl, %al - xorb %ah, %ah - shlw $8, %ax - addw $0x0c, %ax - outw %ax, %dx - ret - -cirrus1_md: - .byte 0x1f, 0x19, 0x84 - .byte 0x20, 0x2c, 0x84 - .byte 0x22, 0x1e, 0x84 - .byte 0x31, 0x25, 0x64 - .byte 0 - .ascii "Cirrus Logic 5X0" - .byte 0 - -# Cirrus Logic 54XX -cirrus5_test: - movw $0x3c4, %dx - movb $6, %al - call inidx - movb %al, %bl # BL=backup - movw $6, %ax - call tstidx - cmpb $0x0f, %al - jne c5fail - - movw $0x1206, %ax - call tstidx - cmpb $0x12, %al - jne c5fail - - movb $0x1e, %al - call inidx - movb %al, %bh - movb %bh, %ah - andb $0xc0, %ah - movb $0x1e, %al - call tstidx - andb $0x3f, %al - jne c5xx - - movb $0x1e, %al - movb %bh, %ah - orb $0x3f, %ah - call tstidx - xorb $0x3f, %al - andb $0x3f, %al -c5xx: pushf - movb $0x1e, %al - movb %bh, %ah - outw %ax, %dx - popf - je c5done - -c5fail: xorw %bp, %bp -c5done: movb $6, %al - movb %bl, %ah - outw %ax, %dx - ret - -cirrus5_md: - .byte 0x14, 0x19, 0x84 - .byte 0x54, 0x2b, 0x84 - .byte 0 - .ascii "Cirrus Logic 54XX" - .byte 0 - -# Cirrus Logic 64XX -- no known extra modes, but must be identified, because -# it's misidentified by the Ahead test. -cirrus6_test: - movw $0x3ce, %dx - movb $0x0a, %al - call inidx - movb %al, %bl # BL=backup - movw $0xce0a, %ax - call tstidx - orb %al, %al - jne c2fail - - movw $0xec0a, %ax - call tstidx - cmpb $0x01, %al - jne c2fail - - movb $0xaa, %al - call inidx # 4X, 5X, 7X and 8X are valid 64XX chip ID's. - shrb $4, %al - subb $4, %al - jz c6done - - decb %al - jz c6done - - subb $2, %al - jz c6done - - decb %al - jz c6done - -c2fail: xorw %bp, %bp -c6done: movb $0x0a, %al - movb %bl, %ah - outw %ax, %dx - ret - -cirrus6_md: - .byte 0 - .ascii "Cirrus Logic 64XX" - .byte 0 - -# Everex / Trident -everex_test: - movw $0x7000, %ax - xorw %bx, %bx - int $0x10 - cmpb $0x70, %al - jne noevrx - - shrw $4, %dx - cmpw $0x678, %dx - je evtrid - - cmpw $0x236, %dx - jne evrxok - -evtrid: leaw trident_md, %bp -evrxok: ret - -noevrx: xorw %bp, %bp - ret - -everex_md: - .byte 0x03, 0x22, 0x50 - .byte 0x04, 0x3c, 0x50 - .byte 0x07, 0x2b, 0x64 - .byte 0x08, 0x4b, 0x64 - .byte 0x0a, 0x19, 0x84 - .byte 0x0b, 0x2c, 0x84 - .byte 0x16, 0x1e, 0x50 - .byte 0x18, 0x1b, 0x64 - .byte 0x21, 0x40, 0xa0 - .byte 0x40, 0x1e, 0x84 - .byte 0 - .ascii "Everex/Trident" - .byte 0 - -# Genoa. -genoa_test: - leaw idgenoa, %si # Check Genoa 'clues' - xorw %ax, %ax - movb %es:(0x37), %al - movw %ax, %di - movw $0x04, %cx - decw %si - decw %di -l1: incw %si - incw %di - movb (%si), %al - testb %al, %al - jz l2 - - cmpb %es:(%di), %al -l2: loope l1 - orw %cx, %cx - je isgen - - xorw %bp, %bp -isgen: ret - -idgenoa: .byte 0x77, 0x00, 0x99, 0x66 - -genoa_md: - .byte 0x58, 0x20, 0x50 - .byte 0x5a, 0x2a, 0x64 - .byte 0x60, 0x19, 0x84 - .byte 0x61, 0x1d, 0x84 - .byte 0x62, 0x20, 0x84 - .byte 0x63, 0x2c, 0x84 - .byte 0x64, 0x3c, 0x84 - .byte 0x6b, 0x4f, 0x64 - .byte 0x72, 0x3c, 0x50 - .byte 0x74, 0x42, 0x50 - .byte 0x78, 0x4b, 0x64 - .byte 0 - .ascii "Genoa" - .byte 0 - -# OAK -oak_test: - leaw idoakvga, %si - movw $0x08, %di - movw $0x08, %cx - repe - cmpsb - je isoak - - xorw %bp, %bp -isoak: ret - -idoakvga: .ascii "OAK VGA " - -oak_md: .byte 0x4e, 0x3c, 0x50 - .byte 0x4f, 0x3c, 0x84 - .byte 0x50, 0x19, 0x84 - .byte 0x51, 0x2b, 0x84 - .byte 0 - .ascii "OAK" - .byte 0 - -# WD Paradise. -paradise_test: - leaw idparadise, %si - movw $0x7d, %di - movw $0x04, %cx - repe - cmpsb - je ispara - - xorw %bp, %bp -ispara: ret - -idparadise: .ascii "VGA=" - -paradise_md: - .byte 0x41, 0x22, 0x50 - .byte 0x47, 0x1c, 0x84 - .byte 0x55, 0x19, 0x84 - .byte 0x54, 0x2c, 0x84 - .byte 0 - .ascii "Paradise" - .byte 0 - -# Trident. -trident_test: - movw $0x3c4, %dx - movb $0x0e, %al - outb %al, %dx - incw %dx - inb %dx, %al - xchgb %al, %ah - xorb %al, %al - outb %al, %dx - inb %dx, %al - xchgb %ah, %al - movb %al, %bl # Strange thing ... in the book this wasn't - andb $0x02, %bl # necessary but it worked on my card which - jz setb2 # is a trident. Without it the screen goes - # blurred ... - andb $0xfd, %al - jmp clrb2 - -setb2: orb $0x02, %al -clrb2: outb %al, %dx - andb $0x0f, %ah - cmpb $0x02, %ah - je istrid - - xorw %bp, %bp -istrid: ret - -trident_md: - .byte 0x50, 0x1e, 0x50 - .byte 0x51, 0x2b, 0x50 - .byte 0x52, 0x3c, 0x50 - .byte 0x57, 0x19, 0x84 - .byte 0x58, 0x1e, 0x84 - .byte 0x59, 0x2b, 0x84 - .byte 0x5a, 0x3c, 0x84 - .byte 0 - .ascii "Trident" - .byte 0 - -# Tseng. -tseng_test: - movw $0x3cd, %dx - inb %dx, %al # Could things be this simple ! :-) - movb %al, %bl - movb $0x55, %al - outb %al, %dx - inb %dx, %al - movb %al, %ah - movb %bl, %al - outb %al, %dx - cmpb $0x55, %ah - je istsen - -isnot: xorw %bp, %bp -istsen: ret - -tseng_md: - .byte 0x26, 0x3c, 0x50 - .byte 0x2a, 0x28, 0x64 - .byte 0x23, 0x19, 0x84 - .byte 0x24, 0x1c, 0x84 - .byte 0x22, 0x2c, 0x84 - .byte 0x21, 0x3c, 0x84 - .byte 0 - .ascii "Tseng" - .byte 0 - -# Video7. -video7_test: - movw $0x3cc, %dx - inb %dx, %al - movw $0x3b4, %dx - andb $0x01, %al - jz even7 - - movw $0x3d4, %dx -even7: movb $0x0c, %al - outb %al, %dx - incw %dx - inb %dx, %al - movb %al, %bl - movb $0x55, %al - outb %al, %dx - inb %dx, %al - decw %dx - movb $0x1f, %al - outb %al, %dx - incw %dx - inb %dx, %al - movb %al, %bh - decw %dx - movb $0x0c, %al - outb %al, %dx - incw %dx - movb %bl, %al - outb %al, %dx - movb $0x55, %al - xorb $0xea, %al - cmpb %bh, %al - jne isnot - - movb $VIDEO_FIRST_V7>>8, svga_prefix # Use special mode switching - ret - -video7_md: - .byte 0x40, 0x2b, 0x50 - .byte 0x43, 0x3c, 0x50 - .byte 0x44, 0x3c, 0x64 - .byte 0x41, 0x19, 0x84 - .byte 0x42, 0x2c, 0x84 - .byte 0x45, 0x1c, 0x84 - .byte 0 - .ascii "Video 7" - .byte 0 - -# Realtek VGA -realtek_test: - leaw idrtvga, %si - movw $0x45, %di - movw $0x0b, %cx - repe - cmpsb - je isrt - - xorw %bp, %bp -isrt: ret - -idrtvga: .ascii "REALTEK VGA" - -realtek_md: - .byte 0x1a, 0x3c, 0x50 - .byte 0x1b, 0x19, 0x84 - .byte 0x1c, 0x1e, 0x84 - .byte 0x1d, 0x2b, 0x84 - .byte 0x1e, 0x3c, 0x84 - .byte 0 - .ascii "REALTEK" - .byte 0 - -#endif /* CONFIG_VIDEO_SVGA */ - -# User-defined local mode table (VGA only) -#ifdef CONFIG_VIDEO_LOCAL -local_modes: - leaw local_mode_table, %si -locm1: lodsw - orw %ax, %ax - jz locm2 - - stosw - movsw - jmp locm1 - -locm2: ret - -# This is the table of local video modes which can be supplied manually -# by the user. Each entry consists of mode ID (word) and dimensions -# (byte for column count and another byte for row count). These modes -# are placed before all SVGA and VESA modes and override them if table -# compacting is enabled. The table must end with a zero word followed -# by NUL-terminated video adapter name. -local_mode_table: - .word 0x0100 # Example: 40x25 - .byte 25,40 - .word 0 - .ascii "Local" - .byte 0 -#endif /* CONFIG_VIDEO_LOCAL */ - -# Read a key and return the ASCII code in al, scan code in ah -getkey: xorb %ah, %ah - int $0x16 - ret - -# Read a key with a timeout of 30 seconds. -# The hardware clock is used to get the time. -getkt: call gettime - addb $30, %al # Wait 30 seconds - cmpb $60, %al - jl lminute - - subb $60, %al -lminute: - movb %al, %cl -again: movb $0x01, %ah - int $0x16 - jnz getkey # key pressed, so get it - - call gettime - cmpb %cl, %al - jne again - - movb $0x20, %al # timeout, return `space' - ret - -# Flush the keyboard buffer -flush: movb $0x01, %ah - int $0x16 - jz empty - - xorb %ah, %ah - int $0x16 - jmp flush - -empty: ret - -# Print hexadecimal number. -prthw: pushw %ax - movb %ah, %al - call prthb - popw %ax -prthb: pushw %ax - shrb $4, %al - call prthn - popw %ax - andb $0x0f, %al -prthn: cmpb $0x0a, %al - jc prth1 - - addb $0x07, %al -prth1: addb $0x30, %al - jmp prtchr - -# Print decimal number in al -prtdec: pushw %ax - pushw %cx - xorb %ah, %ah - movb $0x0a, %cl - idivb %cl - cmpb $0x09, %al - jbe lt100 - - call prtdec - jmp skip10 - -lt100: addb $0x30, %al - call prtchr -skip10: movb %ah, %al - addb $0x30, %al - call prtchr - popw %cx - popw %ax - ret - -store_edid: -#ifdef CONFIG_FIRMWARE_EDID - pushw %es # just save all registers - pushw %ax - pushw %bx - pushw %cx - pushw %dx - pushw %di - - pushw %fs - popw %es - - movl $0x13131313, %eax # memset block with 0x13 - movw $32, %cx - movw $0x140, %di - cld - rep - stosl - - cmpw $0x0200, vbe_version # only do EDID on >= VBE2.0 - jl no_edid - - pushw %es # save ES - xorw %di, %di # Report Capability - pushw %di - popw %es # ES:DI must be 0:0 - movw $0x4f15, %ax - xorw %bx, %bx - xorw %cx, %cx - int $0x10 - popw %es # restore ES - - cmpb $0x00, %ah # call successful - jne no_edid - - cmpb $0x4f, %al # function supported - jne no_edid - - movw $0x4f15, %ax # do VBE/DDC - movw $0x01, %bx - movw $0x00, %cx - movw $0x01, %dx - movw $0x140, %di - int $0x10 - -no_edid: - popw %di # restore all registers - popw %dx - popw %cx - popw %bx - popw %ax - popw %es -#endif - ret - -# VIDEO_SELECT-only variables -mt_end: .word 0 # End of video mode table if built -edit_buf: .space 6 # Line editor buffer -card_name: .word 0 # Pointer to adapter name -scanning: .byte 0 # Performing mode scan -do_restore: .byte 0 # Screen contents altered during mode change -svga_prefix: .byte VIDEO_FIRST_BIOS>>8 # Default prefix for BIOS modes -graphic_mode: .byte 0 # Graphic mode with a linear frame buffer -dac_size: .byte 6 # DAC bit depth -vbe_version: .word 0 # VBE bios version - -# Status messages -keymsg: .ascii "Press <RETURN> to see video modes available, " - .ascii "<SPACE> to continue or wait 30 secs" - .byte 0x0d, 0x0a, 0 - -listhdr: .byte 0x0d, 0x0a - .ascii "Mode: COLSxROWS:" - -crlft: .byte 0x0d, 0x0a, 0 - -prompt: .byte 0x0d, 0x0a - .asciz "Enter mode number or `scan': " - -unknt: .asciz "Unknown mode ID. Try again." - -badmdt: .ascii "You passed an undefined mode number." - .byte 0x0d, 0x0a, 0 - -vesaer: .ascii "Error: Scanning of VESA modes failed. Please " - .ascii "report to <mj@ucw.cz>." - .byte 0x0d, 0x0a, 0 - -old_name: .asciz "CGA/MDA/HGA" - -ega_name: .asciz "EGA" - -svga_name: .ascii " " - -vga_name: .asciz "VGA" - -vesa_name: .asciz "VESA" - -name_bann: .asciz "Video adapter: " -#endif /* CONFIG_VIDEO_SELECT */ - -# Other variables: -adapter: .byte 0 # Video adapter: 0=CGA/MDA/HGA,1=EGA,2=VGA -video_segment: .word 0xb800 # Video memory segment -force_size: .word 0 # Use this size instead of the one in BIOS vars diff --git a/arch/x86_64/defconfig b/arch/x86_64/defconfig index b263788..941a7e3 100644 --- a/arch/x86_64/defconfig +++ b/arch/x86_64/defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.21-rc3 -# Wed Mar 7 15:29:47 2007 +# Linux kernel version: 2.6.21-git3 +# Tue May 1 07:30:48 2007 # CONFIG_X86_64=y CONFIG_64BIT=y @@ -118,11 +118,11 @@ CONFIG_X86_PC=y # CONFIG_X86_VSMP is not set # CONFIG_MK8 is not set # CONFIG_MPSC is not set -# CONFIG_MCORE2 is not set -CONFIG_GENERIC_CPU=y -CONFIG_X86_L1_CACHE_BYTES=128 -CONFIG_X86_L1_CACHE_SHIFT=7 -CONFIG_X86_INTERNODE_CACHE_BYTES=128 +CONFIG_MCORE2=y +# CONFIG_GENERIC_CPU is not set +CONFIG_X86_L1_CACHE_BYTES=64 +CONFIG_X86_L1_CACHE_SHIFT=6 +CONFIG_X86_INTERNODE_CACHE_BYTES=64 CONFIG_X86_TSC=y CONFIG_X86_GOOD_APIC=y # CONFIG_MICROCODE is not set @@ -174,6 +174,7 @@ CONFIG_X86_MCE_INTEL=y CONFIG_X86_MCE_AMD=y # CONFIG_KEXEC is not set # CONFIG_CRASH_DUMP is not set +# CONFIG_RELOCATABLE is not set CONFIG_PHYSICAL_START=0x200000 CONFIG_SECCOMP=y # CONFIG_CC_STACKPROTECTOR is not set @@ -182,7 +183,6 @@ CONFIG_HZ_250=y # CONFIG_HZ_300 is not set # CONFIG_HZ_1000 is not set CONFIG_HZ=250 -# CONFIG_REORDER is not set CONFIG_K8_NB=y CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_IRQ_PROBE=y @@ -218,7 +218,6 @@ CONFIG_ACPI_HOTPLUG_CPU=y CONFIG_ACPI_THERMAL=y CONFIG_ACPI_NUMA=y # CONFIG_ACPI_ASUS is not set -# CONFIG_ACPI_IBM is not set # CONFIG_ACPI_TOSHIBA is not set CONFIG_ACPI_BLACKLIST_YEAR=0 # CONFIG_ACPI_DEBUG is not set @@ -243,7 +242,7 @@ CONFIG_CPU_FREQ_GOV_PERFORMANCE=y # CONFIG_CPU_FREQ_GOV_POWERSAVE is not set CONFIG_CPU_FREQ_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_ONDEMAND=y -# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set +CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y # # CPUFreq processor drivers @@ -299,7 +298,6 @@ CONFIG_NET=y # # Networking options # -# CONFIG_NETDEBUG is not set CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set CONFIG_UNIX=y @@ -334,6 +332,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic" CONFIG_IPV6=y # CONFIG_IPV6_PRIVACY is not set # CONFIG_IPV6_ROUTER_PREF is not set +# CONFIG_IPV6_OPTIMISTIC_DAD is not set # CONFIG_INET6_AH is not set # CONFIG_INET6_ESP is not set # CONFIG_INET6_IPCOMP is not set @@ -389,6 +388,13 @@ CONFIG_IPV6_SIT=y # CONFIG_HAMRADIO is not set # CONFIG_IRDA is not set # CONFIG_BT is not set +# CONFIG_AF_RXRPC is not set + +# +# Wireless +# +# CONFIG_CFG80211 is not set +# CONFIG_WIRELESS_EXT is not set # CONFIG_IEEE80211 is not set # @@ -409,10 +415,6 @@ CONFIG_FW_LOADER=y # Connector - unified userspace <-> kernelspace linker # # CONFIG_CONNECTOR is not set - -# -# Memory Technology Devices (MTD) -# # CONFIG_MTD is not set # @@ -459,6 +461,7 @@ CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 # CONFIG_SGI_IOC4 is not set # CONFIG_TIFM_CORE is not set # CONFIG_SONY_LAPTOP is not set +# CONFIG_THINKPAD_ACPI is not set # # ATA/ATAPI/MFM/RLL support @@ -494,7 +497,6 @@ CONFIG_BLK_DEV_IDEPCI=y # CONFIG_BLK_DEV_RZ1000 is not set CONFIG_BLK_DEV_IDEDMA_PCI=y # CONFIG_BLK_DEV_IDEDMA_FORCED is not set -CONFIG_IDEDMA_PCI_AUTO=y # CONFIG_IDEDMA_ONLYDISK is not set # CONFIG_BLK_DEV_AEC62XX is not set # CONFIG_BLK_DEV_ALI15X3 is not set @@ -525,7 +527,6 @@ CONFIG_BLK_DEV_PDC202XX_NEW=y # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_IVB is not set -CONFIG_IDEDMA_AUTO=y # CONFIG_BLK_DEV_HD is not set # @@ -584,11 +585,9 @@ CONFIG_AIC79XX_DEBUG_MASK=0 # CONFIG_AIC79XX_REG_PRETTY_PRINT is not set # CONFIG_SCSI_AIC94XX is not set # CONFIG_SCSI_ARCMSR is not set -CONFIG_MEGARAID_NEWGEN=y -CONFIG_MEGARAID_MM=y -CONFIG_MEGARAID_MAILBOX=y +# CONFIG_MEGARAID_NEWGEN is not set # CONFIG_MEGARAID_LEGACY is not set -CONFIG_MEGARAID_SAS=y +# CONFIG_MEGARAID_SAS is not set # CONFIG_SCSI_HPTIOP is not set # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DMX3191D is not set @@ -608,6 +607,7 @@ CONFIG_MEGARAID_SAS=y # CONFIG_SCSI_DC395x is not set # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_DEBUG is not set +# CONFIG_SCSI_ESP_CORE is not set # CONFIG_SCSI_SRP is not set # @@ -636,6 +636,7 @@ CONFIG_SATA_ACPI=y # CONFIG_PATA_AMD is not set # CONFIG_PATA_ARTOP is not set # CONFIG_PATA_ATIIXP is not set +# CONFIG_PATA_CMD640_PCI is not set # CONFIG_PATA_CMD64X is not set # CONFIG_PATA_CS5520 is not set # CONFIG_PATA_CS5530 is not set @@ -687,7 +688,7 @@ CONFIG_BLK_DEV_DM=y CONFIG_FUSION=y CONFIG_FUSION_SPI=y # CONFIG_FUSION_FC is not set -CONFIG_FUSION_SAS=y +# CONFIG_FUSION_SAS is not set CONFIG_FUSION_MAX_SGE=128 # CONFIG_FUSION_CTL is not set @@ -700,19 +701,22 @@ CONFIG_IEEE1394=y # Subsystem Options # # CONFIG_IEEE1394_VERBOSEDEBUG is not set -# CONFIG_IEEE1394_EXTRA_CONFIG_ROMS is not set # -# Device Drivers +# Controllers +# + +# +# Texas Instruments PCILynx requires I2C # -# CONFIG_IEEE1394_PCILYNX is not set CONFIG_IEEE1394_OHCI1394=y # -# Protocol Drivers +# Protocols # # CONFIG_IEEE1394_VIDEO1394 is not set # CONFIG_IEEE1394_SBP2 is not set +# CONFIG_IEEE1394_ETH1394_ROM_ENTRY is not set # CONFIG_IEEE1394_ETH1394 is not set # CONFIG_IEEE1394_DV1394 is not set CONFIG_IEEE1394_RAWIO=y @@ -775,7 +779,8 @@ CONFIG_TULIP=y # CONFIG_HP100 is not set CONFIG_NET_PCI=y # CONFIG_PCNET32 is not set -# CONFIG_AMD8111_ETH is not set +CONFIG_AMD8111_ETH=y +# CONFIG_AMD8111E_NAPI is not set # CONFIG_ADAPTEC_STARFIRE is not set CONFIG_B44=y CONFIG_FORCEDETH=y @@ -837,9 +842,10 @@ CONFIG_S2IO=m # CONFIG_TR is not set # -# Wireless LAN (non-hamradio) +# Wireless LAN # -# CONFIG_NET_RADIO is not set +# CONFIG_WLAN_PRE80211 is not set +# CONFIG_WLAN_80211 is not set # # Wan interfaces @@ -853,7 +859,6 @@ CONFIG_S2IO=m # CONFIG_SHAPER is not set CONFIG_NETCONSOLE=y CONFIG_NETPOLL=y -# CONFIG_NETPOLL_RX is not set # CONFIG_NETPOLL_TRAP is not set CONFIG_NET_POLL_CONTROLLER=y @@ -987,57 +992,7 @@ CONFIG_HPET_MMAP=y # # I2C support # -CONFIG_I2C=m -CONFIG_I2C_CHARDEV=m - -# -# I2C Algorithms -# -# CONFIG_I2C_ALGOBIT is not set -# CONFIG_I2C_ALGOPCF is not set -# CONFIG_I2C_ALGOPCA is not set - -# -# I2C Hardware Bus support -# -# CONFIG_I2C_ALI1535 is not set -# CONFIG_I2C_ALI1563 is not set -# CONFIG_I2C_ALI15X3 is not set -# CONFIG_I2C_AMD756 is not set -# CONFIG_I2C_AMD8111 is not set -# CONFIG_I2C_I801 is not set -# CONFIG_I2C_I810 is not set -# CONFIG_I2C_PIIX4 is not set -CONFIG_I2C_ISA=m -# CONFIG_I2C_NFORCE2 is not set -# CONFIG_I2C_OCORES is not set -# CONFIG_I2C_PARPORT_LIGHT is not set -# CONFIG_I2C_PASEMI is not set -# CONFIG_I2C_PROSAVAGE is not set -# CONFIG_I2C_SAVAGE4 is not set -# CONFIG_I2C_SIS5595 is not set -# CONFIG_I2C_SIS630 is not set -# CONFIG_I2C_SIS96X is not set -# CONFIG_I2C_STUB is not set -# CONFIG_I2C_VIA is not set -# CONFIG_I2C_VIAPRO is not set -# CONFIG_I2C_VOODOO3 is not set -# CONFIG_I2C_PCA_ISA is not set - -# -# Miscellaneous I2C Chip support -# -# CONFIG_SENSORS_DS1337 is not set -# CONFIG_SENSORS_DS1374 is not set -# CONFIG_SENSORS_EEPROM is not set -# CONFIG_SENSORS_PCF8574 is not set -# CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_PCF8591 is not set -# CONFIG_SENSORS_MAX6875 is not set -# CONFIG_I2C_DEBUG_CORE is not set -# CONFIG_I2C_DEBUG_ALGO is not set -# CONFIG_I2C_DEBUG_BUS is not set -# CONFIG_I2C_DEBUG_CHIP is not set +# CONFIG_I2C is not set # # SPI support @@ -1053,54 +1008,8 @@ CONFIG_I2C_ISA=m # # Hardware Monitoring support # -CONFIG_HWMON=y +# CONFIG_HWMON is not set # CONFIG_HWMON_VID is not set -# CONFIG_SENSORS_ABITUGURU is not set -# CONFIG_SENSORS_ADM1021 is not set -# CONFIG_SENSORS_ADM1025 is not set -# CONFIG_SENSORS_ADM1026 is not set -# CONFIG_SENSORS_ADM1029 is not set -# CONFIG_SENSORS_ADM1031 is not set -# CONFIG_SENSORS_ADM9240 is not set -# CONFIG_SENSORS_K8TEMP is not set -# CONFIG_SENSORS_ASB100 is not set -# CONFIG_SENSORS_ATXP1 is not set -# CONFIG_SENSORS_DS1621 is not set -# CONFIG_SENSORS_F71805F is not set -# CONFIG_SENSORS_FSCHER is not set -# CONFIG_SENSORS_FSCPOS is not set -# CONFIG_SENSORS_GL518SM is not set -# CONFIG_SENSORS_GL520SM is not set -# CONFIG_SENSORS_IT87 is not set -# CONFIG_SENSORS_LM63 is not set -# CONFIG_SENSORS_LM75 is not set -# CONFIG_SENSORS_LM77 is not set -# CONFIG_SENSORS_LM78 is not set -# CONFIG_SENSORS_LM80 is not set -# CONFIG_SENSORS_LM83 is not set -# CONFIG_SENSORS_LM85 is not set -# CONFIG_SENSORS_LM87 is not set -# CONFIG_SENSORS_LM90 is not set -# CONFIG_SENSORS_LM92 is not set -# CONFIG_SENSORS_MAX1619 is not set -# CONFIG_SENSORS_PC87360 is not set -# CONFIG_SENSORS_PC87427 is not set -# CONFIG_SENSORS_SIS5595 is not set -# CONFIG_SENSORS_SMSC47M1 is not set -# CONFIG_SENSORS_SMSC47M192 is not set -CONFIG_SENSORS_SMSC47B397=m -# CONFIG_SENSORS_VIA686A is not set -# CONFIG_SENSORS_VT1211 is not set -# CONFIG_SENSORS_VT8231 is not set -# CONFIG_SENSORS_W83781D is not set -# CONFIG_SENSORS_W83791D is not set -# CONFIG_SENSORS_W83792D is not set -# CONFIG_SENSORS_W83793 is not set -# CONFIG_SENSORS_W83L785TS is not set -# CONFIG_SENSORS_W83627HF is not set -# CONFIG_SENSORS_W83627EHF is not set -# CONFIG_SENSORS_HDAPS is not set -# CONFIG_HWMON_DEBUG_CHIP is not set # # Multifunction device drivers @@ -1147,8 +1056,9 @@ CONFIG_SOUND=y # Open Sound System # CONFIG_SOUND_PRIME=y -# CONFIG_OBSOLETE_OSS is not set +CONFIG_OBSOLETE_OSS=y # CONFIG_SOUND_BT878 is not set +# CONFIG_SOUND_ES1371 is not set CONFIG_SOUND_ICH=y # CONFIG_SOUND_TRIDENT is not set # CONFIG_SOUND_MSNDCLAS is not set @@ -1163,6 +1073,14 @@ CONFIG_HID=y # CONFIG_HID_DEBUG is not set # +# USB Input Devices +# +CONFIG_USB_HID=y +# CONFIG_USB_HIDINPUT_POWERBOOK is not set +# CONFIG_HID_FF is not set +# CONFIG_USB_HIDDEV is not set + +# # USB support # CONFIG_USB_ARCH_HAS_HCD=y @@ -1175,6 +1093,7 @@ CONFIG_USB=y # Miscellaneous USB options # CONFIG_USB_DEVICEFS=y +# CONFIG_USB_DEVICE_CLASS is not set # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_SUSPEND is not set # CONFIG_USB_OTG is not set @@ -1225,10 +1144,6 @@ CONFIG_USB_STORAGE=y # # USB Input Devices # -CONFIG_USB_HID=y -# CONFIG_USB_HIDINPUT_POWERBOOK is not set -# CONFIG_HID_FF is not set -# CONFIG_USB_HIDDEV is not set # CONFIG_USB_AIPTEK is not set # CONFIG_USB_WACOM is not set # CONFIG_USB_ACECAD is not set @@ -1556,7 +1471,7 @@ CONFIG_DEBUG_KERNEL=y CONFIG_LOG_BUF_SHIFT=18 CONFIG_DETECT_SOFTLOCKUP=y # CONFIG_SCHEDSTATS is not set -# CONFIG_TIMER_STATS is not set +CONFIG_TIMER_STATS=y # CONFIG_DEBUG_SLAB is not set # CONFIG_DEBUG_RT_MUTEXES is not set # CONFIG_RT_MUTEX_TESTER is not set diff --git a/arch/x86_64/ia32/ia32_binfmt.c b/arch/x86_64/ia32/ia32_binfmt.c index 071100e..185399b 100644 --- a/arch/x86_64/ia32/ia32_binfmt.c +++ b/arch/x86_64/ia32/ia32_binfmt.c @@ -5,6 +5,11 @@ * This tricks binfmt_elf.c into loading 32bit binaries using lots * of ugly preprocessor tricks. Talk about very very poor man's inheritance. */ +#define __ASM_X86_64_ELF_H 1 + +#undef ELF_CLASS +#define ELF_CLASS ELFCLASS32 + #include <linux/types.h> #include <linux/stddef.h> #include <linux/rwsem.h> @@ -50,9 +55,6 @@ struct elf_phdr; #undef ELF_ARCH #define ELF_ARCH EM_386 -#undef ELF_CLASS -#define ELF_CLASS ELFCLASS32 - #define ELF_DATA ELFDATA2LSB #define USE_ELF_CORE_DUMP 1 @@ -136,7 +138,7 @@ struct elf_prpsinfo #define user user32 -#define __ASM_X86_64_ELF_H 1 +#undef elf_read_implies_exec #define elf_read_implies_exec(ex, executable_stack) (executable_stack != EXSTACK_DISABLE_X) //#include <asm/ia32.h> #include <linux/elf.h> diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S index 796df69..c48087d 100644 --- a/arch/x86_64/ia32/ia32entry.S +++ b/arch/x86_64/ia32/ia32entry.S @@ -481,11 +481,7 @@ ia32_sys_call_table: .quad sys_symlink .quad sys_lstat .quad sys_readlink /* 85 */ -#ifdef CONFIG_IA32_AOUT .quad sys_uselib -#else - .quad quiet_ni_syscall -#endif .quad sys_swapon .quad sys_reboot .quad compat_sys_old_readdir diff --git a/arch/x86_64/ia32/syscall32.c b/arch/x86_64/ia32/syscall32.c index 568ff0d..fc4419f 100644 --- a/arch/x86_64/ia32/syscall32.c +++ b/arch/x86_64/ia32/syscall32.c @@ -13,6 +13,7 @@ #include <asm/proto.h> #include <asm/tlbflush.h> #include <asm/ia32_unistd.h> +#include <asm/vsyscall32.h> extern unsigned char syscall32_syscall[], syscall32_syscall_end[]; extern unsigned char syscall32_sysenter[], syscall32_sysenter_end[]; diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile index bb47e86..4d94c51 100644 --- a/arch/x86_64/kernel/Makefile +++ b/arch/x86_64/kernel/Makefile @@ -8,7 +8,8 @@ obj-y := process.o signal.o entry.o traps.o irq.o \ ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_x86_64.o \ x8664_ksyms.o i387.o syscall.o vsyscall.o \ setup64.o bootflag.o e820.o reboot.o quirks.o i8237.o \ - pci-dma.o pci-nommu.o alternative.o hpet.o tsc.o + pci-dma.o pci-nommu.o alternative.o hpet.o tsc.o bugs.o \ + perfctr-watchdog.o obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_X86_MCE) += mce.o therm_throt.o @@ -21,8 +22,7 @@ obj-$(CONFIG_MICROCODE) += microcode.o obj-$(CONFIG_X86_CPUID) += cpuid.o obj-$(CONFIG_SMP) += smp.o smpboot.o trampoline.o tsc_sync.o obj-y += apic.o nmi.o -obj-y += io_apic.o mpparse.o \ - genapic.o genapic_cluster.o genapic_flat.o +obj-y += io_apic.o mpparse.o genapic.o genapic_flat.o obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o crash.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o obj-$(CONFIG_PM) += suspend.o @@ -58,3 +58,4 @@ i8237-y += ../../i386/kernel/i8237.o msr-$(subst m,y,$(CONFIG_X86_MSR)) += ../../i386/kernel/msr.o alternative-y += ../../i386/kernel/alternative.o pcspeaker-y += ../../i386/kernel/pcspeaker.o +perfctr-watchdog-y += ../../i386/kernel/cpu/perfctr-watchdog.o diff --git a/arch/x86_64/kernel/acpi/sleep.c b/arch/x86_64/kernel/acpi/sleep.c index e1548fb..195b703 100644 --- a/arch/x86_64/kernel/acpi/sleep.c +++ b/arch/x86_64/kernel/acpi/sleep.c @@ -60,19 +60,6 @@ extern char wakeup_start, wakeup_end; extern unsigned long acpi_copy_wakeup_routine(unsigned long); -static pgd_t low_ptr; - -static void init_low_mapping(void) -{ - pgd_t *slot0 = pgd_offset(current->mm, 0UL); - low_ptr = *slot0; - /* FIXME: We're playing with the current task's page tables here, which - * is potentially dangerous on SMP systems. - */ - set_pgd(slot0, *pgd_offset(current->mm, PAGE_OFFSET)); - local_flush_tlb(); -} - /** * acpi_save_state_mem - save kernel state * @@ -81,8 +68,6 @@ static void init_low_mapping(void) */ int acpi_save_state_mem(void) { - init_low_mapping(); - memcpy((void *)acpi_wakeup_address, &wakeup_start, &wakeup_end - &wakeup_start); acpi_copy_wakeup_routine(acpi_wakeup_address); @@ -95,8 +80,6 @@ int acpi_save_state_mem(void) */ void acpi_restore_state_mem(void) { - set_pgd(pgd_offset(current->mm, 0UL), low_ptr); - local_flush_tlb(); } /** @@ -109,10 +92,11 @@ void acpi_restore_state_mem(void) */ void __init acpi_reserve_bootmem(void) { - acpi_wakeup_address = (unsigned long)alloc_bootmem_low(PAGE_SIZE); - if ((&wakeup_end - &wakeup_start) > PAGE_SIZE) + acpi_wakeup_address = (unsigned long)alloc_bootmem_low(PAGE_SIZE*2); + if ((&wakeup_end - &wakeup_start) > (PAGE_SIZE*2)) printk(KERN_CRIT - "ACPI: Wakeup code way too big, will crash on attempt to suspend\n"); + "ACPI: Wakeup code way too big, will crash on attempt" + " to suspend\n"); } static int __init acpi_sleep_setup(char *str) diff --git a/arch/x86_64/kernel/acpi/wakeup.S b/arch/x86_64/kernel/acpi/wakeup.S index 185faa9..8550a6f 100644 --- a/arch/x86_64/kernel/acpi/wakeup.S +++ b/arch/x86_64/kernel/acpi/wakeup.S @@ -1,6 +1,7 @@ .text #include <linux/linkage.h> #include <asm/segment.h> +#include <asm/pgtable.h> #include <asm/page.h> #include <asm/msr.h> @@ -30,22 +31,28 @@ wakeup_code: cld # setup data segment movw %cs, %ax - movw %ax, %ds # Make ds:0 point to wakeup_start + movw %ax, %ds # Make ds:0 point to wakeup_start movw %ax, %ss - mov $(wakeup_stack - wakeup_code), %sp # Private stack is needed for ASUS board + # Private stack is needed for ASUS board + mov $(wakeup_stack - wakeup_code), %sp - pushl $0 # Kill any dangerous flags + pushl $0 # Kill any dangerous flags popfl movl real_magic - wakeup_code, %eax cmpl $0x12345678, %eax jne bogus_real_magic + call verify_cpu # Verify the cpu supports long + # mode + testl %eax, %eax + jnz no_longmode + testl $1, video_flags - wakeup_code jz 1f lcall $0xc000,$3 movw %cs, %ax - movw %ax, %ds # Bios might have played with that + movw %ax, %ds # Bios might have played with that movw %ax, %ss 1: @@ -61,12 +68,15 @@ wakeup_code: movb $0xa2, %al ; outb %al, $0x80 - lidt %ds:idt_48a - wakeup_code - xorl %eax, %eax - movw %ds, %ax # (Convert %ds:gdt to a linear ptr) - shll $4, %eax - addl $(gdta - wakeup_code), %eax - movl %eax, gdt_48a +2 - wakeup_code + mov %ds, %ax # Find 32bit wakeup_code addr + movzx %ax, %esi # (Convert %ds:gdt to a liner ptr) + shll $4, %esi + # Fix up the vectors + addl %esi, wakeup_32_vector - wakeup_code + addl %esi, wakeup_long64_vector - wakeup_code + addl %esi, gdt_48a + 2 - wakeup_code # Fixup the gdt pointer + + lidtl %ds:idt_48a - wakeup_code lgdtl %ds:gdt_48a - wakeup_code # load gdt with whatever is # appropriate @@ -75,86 +85,63 @@ wakeup_code: jmp 1f 1: - .byte 0x66, 0xea # prefix + jmpi-opcode - .long wakeup_32 - __START_KERNEL_map - .word __KERNEL_CS + ljmpl *(wakeup_32_vector - wakeup_code) + + .balign 4 +wakeup_32_vector: + .long wakeup_32 - wakeup_code + .word __KERNEL32_CS, 0 .code32 wakeup_32: # Running in this code, but at low address; paging is not yet turned on. movb $0xa5, %al ; outb %al, $0x80 - /* Check if extended functions are implemented */ - movl $0x80000000, %eax - cpuid - cmpl $0x80000000, %eax - jbe bogus_cpu - wbinvd - mov $0x80000001, %eax - cpuid - btl $29, %edx - jnc bogus_cpu - movl %edx,%edi - - movw $__KERNEL_DS, %ax - movw %ax, %ds - movw %ax, %es - movw %ax, %fs - movw %ax, %gs - - movw $__KERNEL_DS, %ax - movw %ax, %ss + movl $__KERNEL_DS, %eax + movl %eax, %ds - mov $(wakeup_stack - __START_KERNEL_map), %esp - movl saved_magic - __START_KERNEL_map, %eax - cmpl $0x9abcdef0, %eax - jne bogus_32_magic + movw $0x0e00 + 'i', %ds:(0xb8012) + movb $0xa8, %al ; outb %al, $0x80; /* * Prepare for entering 64bits mode */ - /* Enable PAE mode and PGE */ + /* Enable PAE */ xorl %eax, %eax btsl $5, %eax - btsl $7, %eax movl %eax, %cr4 /* Setup early boot stage 4 level pagetables */ - movl $(wakeup_level4_pgt - __START_KERNEL_map), %eax + leal (wakeup_level4_pgt - wakeup_code)(%esi), %eax movl %eax, %cr3 - /* Setup EFER (Extended Feature Enable Register) */ - movl $MSR_EFER, %ecx - rdmsr - /* Fool rdmsr and reset %eax to avoid dependences */ - xorl %eax, %eax + /* Check if nx is implemented */ + movl $0x80000001, %eax + cpuid + movl %edx,%edi + /* Enable Long Mode */ + xorl %eax, %eax btsl $_EFER_LME, %eax - /* Enable System Call */ - btsl $_EFER_SCE, %eax - /* No Execute supported? */ + /* No Execute supported? */ btl $20,%edi jnc 1f btsl $_EFER_NX, %eax -1: /* Make changes effective */ +1: movl $MSR_EFER, %ecx + xorl %edx, %edx wrmsr - wbinvd xorl %eax, %eax btsl $31, %eax /* Enable paging and in turn activate Long Mode */ btsl $0, %eax /* Enable protected mode */ - btsl $1, %eax /* Enable MP */ - btsl $4, %eax /* Enable ET */ - btsl $5, %eax /* Enable NE */ - btsl $16, %eax /* Enable WP */ - btsl $18, %eax /* Enable AM */ /* Make changes effective */ movl %eax, %cr0 + /* At this point: CR4.PAE must be 1 CS.L must be 0 @@ -162,11 +149,6 @@ wakeup_32: Next instruction must be a branch This must be on identity-mapped page */ - jmp reach_compatibility_mode -reach_compatibility_mode: - movw $0x0e00 + 'i', %ds:(0xb8012) - movb $0xa8, %al ; outb %al, $0x80; - /* * At this point we're in long mode but in 32bit compatibility mode * with EFER.LME = 1, CS.L = 0, CS.D = 1 (and in turn @@ -174,24 +156,19 @@ reach_compatibility_mode: * the new gdt/idt that has __KERNEL_CS with CS.L = 1. */ - movw $0x0e00 + 'n', %ds:(0xb8014) - movb $0xa9, %al ; outb %al, $0x80 - - /* Load new GDT with the 64bit segment using 32bit descriptor */ - movl $(pGDT32 - __START_KERNEL_map), %eax - lgdt (%eax) - - movl $(wakeup_jumpvector - __START_KERNEL_map), %eax /* Finally jump in 64bit mode */ - ljmp *(%eax) + ljmp *(wakeup_long64_vector - wakeup_code)(%esi) -wakeup_jumpvector: - .long wakeup_long64 - __START_KERNEL_map - .word __KERNEL_CS + .balign 4 +wakeup_long64_vector: + .long wakeup_long64 - wakeup_code + .word __KERNEL_CS, 0 .code64 - /* Hooray, we are in Long 64-bit mode (but still running in low memory) */ + /* Hooray, we are in Long 64-bit mode (but still running in + * low memory) + */ wakeup_long64: /* * We must switch to a new descriptor in kernel space for the GDT @@ -199,7 +176,15 @@ wakeup_long64: * addresses where we're currently running on. We have to do that here * because in 32bit we couldn't load a 64bit linear address. */ - lgdt cpu_gdt_descr - __START_KERNEL_map + lgdt cpu_gdt_descr + + movw $0x0e00 + 'n', %ds:(0xb8014) + movb $0xa9, %al ; outb %al, $0x80 + + movq saved_magic, %rax + movq $0x123456789abcdef0, %rdx + cmpq %rdx, %rax + jne bogus_64_magic movw $0x0e00 + 'u', %ds:(0xb8016) @@ -211,75 +196,58 @@ wakeup_long64: movw %ax, %es movw %ax, %fs movw %ax, %gs - movq saved_esp, %rsp + movq saved_rsp, %rsp movw $0x0e00 + 'x', %ds:(0xb8018) - movq saved_ebx, %rbx - movq saved_edi, %rdi - movq saved_esi, %rsi - movq saved_ebp, %rbp + movq saved_rbx, %rbx + movq saved_rdi, %rdi + movq saved_rsi, %rsi + movq saved_rbp, %rbp movw $0x0e00 + '!', %ds:(0xb801a) - movq saved_eip, %rax + movq saved_rip, %rax jmp *%rax .code32 .align 64 gdta: + /* Its good to keep gdt in sync with one in trampoline.S */ .word 0, 0, 0, 0 # dummy - - .word 0, 0, 0, 0 # unused - - .word 0xFFFF # 4Gb - (0x100000*0x1000 = 4Gb) - .word 0 # base address = 0 - .word 0x9B00 # code read/exec. ??? Why I need 0x9B00 (as opposed to 0x9A00 in order for this to work?) - .word 0x00CF # granularity = 4096, 386 - # (+5th nibble of limit) - - .word 0xFFFF # 4Gb - (0x100000*0x1000 = 4Gb) - .word 0 # base address = 0 - .word 0x9200 # data read/write - .word 0x00CF # granularity = 4096, 386 - # (+5th nibble of limit) -# this is 64bit descriptor for code - .word 0xFFFF - .word 0 - .word 0x9A00 # code read/exec - .word 0x00AF # as above, but it is long mode and with D=0 + /* ??? Why I need the accessed bit set in order for this to work? */ + .quad 0x00cf9b000000ffff # __KERNEL32_CS + .quad 0x00af9b000000ffff # __KERNEL_CS + .quad 0x00cf93000000ffff # __KERNEL_DS idt_48a: .word 0 # idt limit = 0 .word 0, 0 # idt base = 0L gdt_48a: - .word 0x8000 # gdt limit=2048, + .word 0x800 # gdt limit=2048, # 256 GDT entries - .word 0, 0 # gdt base (filled in later) - + .long gdta - wakeup_code # gdt base (relocated in later) -real_save_gdt: .word 0 - .quad 0 real_magic: .quad 0 video_mode: .quad 0 video_flags: .quad 0 +.code16 bogus_real_magic: - movb $0xba,%al ; outb %al,$0x80 + movb $0xba,%al ; outb %al,$0x80 jmp bogus_real_magic -bogus_32_magic: +.code64 +bogus_64_magic: movb $0xb3,%al ; outb %al,$0x80 - jmp bogus_32_magic + jmp bogus_64_magic -bogus_31_magic: - movb $0xb1,%al ; outb %al,$0x80 - jmp bogus_31_magic - -bogus_cpu: - movb $0xbc,%al ; outb %al,$0x80 - jmp bogus_cpu +.code16 +no_longmode: + movb $0xbc,%al ; outb %al,$0x80 + jmp no_longmode +#include "../verify_cpu.S" /* This code uses an extended set of video mode numbers. These include: * Aliases for standard modes @@ -301,6 +269,7 @@ bogus_cpu: #define VIDEO_FIRST_V7 0x0900 # Setting of user mode (AX=mode ID) => CF=success +.code16 mode_seta: movw %ax, %bx #if 0 @@ -346,21 +315,18 @@ check_vesaa: _setbada: jmp setbada - .code64 -bogus_magic: - movw $0x0e00 + 'B', %ds:(0xb8018) - jmp bogus_magic - -bogus_magic2: - movw $0x0e00 + '2', %ds:(0xb8018) - jmp bogus_magic2 - - wakeup_stack_begin: # Stack grows down .org 0xff0 wakeup_stack: # Just below end of page +.org 0x1000 +ENTRY(wakeup_level4_pgt) + .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE + .fill 510,8,0 + /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */ + .quad level3_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE + ENTRY(wakeup_end) ## @@ -373,28 +339,11 @@ ENTRY(wakeup_end) # # Returned address is location of code in low memory (past data and stack) # + .code64 ENTRY(acpi_copy_wakeup_routine) pushq %rax - pushq %rcx pushq %rdx - sgdt saved_gdt - sidt saved_idt - sldt saved_ldt - str saved_tss - - movq %cr3, %rdx - movq %rdx, saved_cr3 - movq %cr4, %rdx - movq %rdx, saved_cr4 - movq %cr0, %rdx - movq %rdx, saved_cr0 - sgdt real_save_gdt - wakeup_start (,%rdi) - movl $MSR_EFER, %ecx - rdmsr - movl %eax, saved_efer - movl %edx, saved_efer2 - movl saved_video_mode, %edx movl %edx, video_mode - wakeup_start (,%rdi) movl acpi_video_flags, %edx @@ -403,21 +352,13 @@ ENTRY(acpi_copy_wakeup_routine) movq $0x123456789abcdef0, %rdx movq %rdx, saved_magic - movl saved_magic - __START_KERNEL_map, %eax - cmpl $0x9abcdef0, %eax - jne bogus_32_magic - - # make sure %cr4 is set correctly (features, etc) - movl saved_cr4 - __START_KERNEL_map, %eax - movq %rax, %cr4 + movq saved_magic, %rax + movq $0x123456789abcdef0, %rdx + cmpq %rdx, %rax + jne bogus_64_magic - movl saved_cr0 - __START_KERNEL_map, %eax - movq %rax, %cr0 - jmp 1f # Flush pipelines -1: # restore the regs we used popq %rdx - popq %rcx popq %rax ENTRY(do_suspend_lowlevel_s4bios) ret @@ -450,13 +391,13 @@ do_suspend_lowlevel: movq %r15, saved_context_r15(%rip) pushfq ; popq saved_context_eflags(%rip) - movq $.L97, saved_eip(%rip) + movq $.L97, saved_rip(%rip) - movq %rsp,saved_esp - movq %rbp,saved_ebp - movq %rbx,saved_ebx - movq %rdi,saved_edi - movq %rsi,saved_esi + movq %rsp,saved_rsp + movq %rbp,saved_rbp + movq %rbx,saved_rbx + movq %rdi,saved_rdi + movq %rsi,saved_rsi addq $8, %rsp movl $3, %edi @@ -503,25 +444,12 @@ do_suspend_lowlevel: .data ALIGN -ENTRY(saved_ebp) .quad 0 -ENTRY(saved_esi) .quad 0 -ENTRY(saved_edi) .quad 0 -ENTRY(saved_ebx) .quad 0 +ENTRY(saved_rbp) .quad 0 +ENTRY(saved_rsi) .quad 0 +ENTRY(saved_rdi) .quad 0 +ENTRY(saved_rbx) .quad 0 -ENTRY(saved_eip) .quad 0 -ENTRY(saved_esp) .quad 0 +ENTRY(saved_rip) .quad 0 +ENTRY(saved_rsp) .quad 0 ENTRY(saved_magic) .quad 0 - -ALIGN -# saved registers -saved_gdt: .quad 0,0 -saved_idt: .quad 0,0 -saved_ldt: .quad 0 -saved_tss: .quad 0 - -saved_cr0: .quad 0 -saved_cr3: .quad 0 -saved_cr4: .quad 0 -saved_efer: .quad 0 -saved_efer2: .quad 0 diff --git a/arch/x86_64/kernel/aperture.c b/arch/x86_64/kernel/aperture.c index b487396..a52af58 100644 --- a/arch/x86_64/kernel/aperture.c +++ b/arch/x86_64/kernel/aperture.c @@ -51,7 +51,6 @@ static void __init insert_aperture_resource(u32 aper_base, u32 aper_size) static u32 __init allocate_aperture(void) { - pg_data_t *nd0 = NODE_DATA(0); u32 aper_size; void *p; @@ -65,12 +64,12 @@ static u32 __init allocate_aperture(void) * Unfortunately we cannot move it up because that would make the * IOMMU useless. */ - p = __alloc_bootmem_node(nd0, aper_size, aper_size, 0); + p = __alloc_bootmem_nopanic(aper_size, aper_size, 0); if (!p || __pa(p)+aper_size > 0xffffffff) { printk("Cannot allocate aperture memory hole (%p,%uK)\n", p, aper_size>>10); if (p) - free_bootmem_node(nd0, __pa(p), aper_size); + free_bootmem(__pa(p), aper_size); return 0; } printk("Mapping aperture over %d KB of RAM @ %lx\n", diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c index bd3e45d..d198f7d 100644 --- a/arch/x86_64/kernel/apic.c +++ b/arch/x86_64/kernel/apic.c @@ -68,6 +68,28 @@ int using_apic_timer __read_mostly = 0; static void apic_pm_activate(void); +void apic_wait_icr_idle(void) +{ + while (apic_read(APIC_ICR) & APIC_ICR_BUSY) + cpu_relax(); +} + +unsigned int safe_apic_wait_icr_idle(void) +{ + unsigned int send_status; + int timeout; + + timeout = 0; + do { + send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY; + if (!send_status) + break; + udelay(100); + } while (timeout++ < 1000); + + return send_status; +} + void enable_NMI_through_LVT0 (void * dummy) { unsigned int v; @@ -817,14 +839,15 @@ static void setup_APIC_timer(unsigned int clocks) static int __init calibrate_APIC_clock(void) { - int apic, apic_start, tsc, tsc_start; + unsigned apic, apic_start; + unsigned long tsc, tsc_start; int result; /* * Put whatever arbitrary (but long enough) timeout * value into the APIC clock, we just want to get the * counter running for calibration. */ - __setup_APIC_LVTT(1000000000); + __setup_APIC_LVTT(4000000000); apic_start = apic_read(APIC_TMCCT); #ifdef CONFIG_X86_PM_TIMER @@ -835,15 +858,15 @@ static int __init calibrate_APIC_clock(void) } else #endif { - rdtscl(tsc_start); + rdtscll(tsc_start); do { apic = apic_read(APIC_TMCCT); - rdtscl(tsc); + rdtscll(tsc); } while ((tsc - tsc_start) < TICK_COUNT && - (apic - apic_start) < TICK_COUNT); + (apic_start - apic) < TICK_COUNT); - result = (apic_start - apic) * 1000L * cpu_khz / + result = (apic_start - apic) * 1000L * tsc_khz / (tsc - tsc_start); } printk("result %d\n", result); diff --git a/arch/x86_64/kernel/asm-offsets.c b/arch/x86_64/kernel/asm-offsets.c index 96687e2b..778953b 100644 --- a/arch/x86_64/kernel/asm-offsets.c +++ b/arch/x86_64/kernel/asm-offsets.c @@ -21,6 +21,14 @@ #define BLANK() asm volatile("\n->" : : ) +#define __NO_STUBS 1 +#undef __SYSCALL +#undef _ASM_X86_64_UNISTD_H_ +#define __SYSCALL(nr, sym) [nr] = 1, +static char syscalls[] = { +#include <asm/unistd.h> +}; + int main(void) { #define ENTRY(entry) DEFINE(tsk_ ## entry, offsetof(struct task_struct, entry)) @@ -71,5 +79,7 @@ int main(void) DEFINE(TSS_ist, offsetof(struct tss_struct, ist)); BLANK(); DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx)); + BLANK(); + DEFINE(__NR_syscall_max, sizeof(syscalls) - 1); return 0; } diff --git a/arch/x86_64/kernel/bugs.c b/arch/x86_64/kernel/bugs.c new file mode 100644 index 0000000..12b585b --- /dev/null +++ b/arch/x86_64/kernel/bugs.c @@ -0,0 +1,21 @@ +/* + * arch/x86_64/kernel/bugs.c + * + * Copyright (C) 1994 Linus Torvalds + * Copyright (C) 2000 SuSE + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/alternative.h> +#include <asm/processor.h> + +void __init check_bugs(void) +{ + identify_cpu(&boot_cpu_data); +#if !defined(CONFIG_SMP) + printk("CPU: "); + print_cpu_info(&boot_cpu_data); +#endif + alternative_instructions(); +} diff --git a/arch/x86_64/kernel/cpufreq/Kconfig b/arch/x86_64/kernel/cpufreq/Kconfig index 40acb67..c0749d2 100644 --- a/arch/x86_64/kernel/cpufreq/Kconfig +++ b/arch/x86_64/kernel/cpufreq/Kconfig @@ -16,6 +16,9 @@ config X86_POWERNOW_K8 help This adds the CPUFreq driver for mobile AMD Opteron/Athlon64 processors. + To compile this driver as a module, choose M here: the + module will be called powernow-k8. + For details, take a look at <file:Documentation/cpu-freq/>. If in doubt, say N. @@ -38,6 +41,9 @@ config X86_SPEEDSTEP_CENTRINO mobile CPUs. This means Intel Pentium M (Centrino) CPUs or 64bit enabled Intel Xeons. + To compile this driver as a module, choose M here: the + module will be called speedstep-centrino. + For details, take a look at <file:Documentation/cpu-freq/>. If in doubt, say N. @@ -55,6 +61,9 @@ config X86_ACPI_CPUFREQ Processor Performance States. This driver also supports Intel Enhanced Speedstep. + To compile this driver as a module, choose M here: the + module will be called acpi-cpufreq. + For details, take a look at <file:Documentation/cpu-freq/>. If in doubt, say N. @@ -62,7 +71,7 @@ config X86_ACPI_CPUFREQ comment "shared options" config X86_ACPI_CPUFREQ_PROC_INTF - bool "/proc/acpi/processor/../performance interface (deprecated)" + bool "/proc/acpi/processor/../performance interface (deprecated)" depends on PROC_FS depends on X86_ACPI_CPUFREQ || X86_SPEEDSTEP_CENTRINO_ACPI || X86_POWERNOW_K8_ACPI help @@ -86,16 +95,18 @@ config X86_P4_CLOCKMOD slowdowns and noticeable latencies. Normally Speedstep should be used instead. + To compile this driver as a module, choose M here: the + module will be called p4-clockmod. + For details, take a look at <file:Documentation/cpu-freq/>. Unless you are absolutely sure say N. config X86_SPEEDSTEP_LIB - tristate - default X86_P4_CLOCKMOD + tristate + default X86_P4_CLOCKMOD endif endmenu - diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c index a490fab..13c6c37 100644 --- a/arch/x86_64/kernel/e820.c +++ b/arch/x86_64/kernel/e820.c @@ -17,6 +17,8 @@ #include <linux/kexec.h> #include <linux/module.h> #include <linux/mm.h> +#include <linux/suspend.h> +#include <linux/pfn.h> #include <asm/pgtable.h> #include <asm/page.h> @@ -25,7 +27,7 @@ #include <asm/bootsetup.h> #include <asm/sections.h> -struct e820map e820 __initdata; +struct e820map e820; /* * PFN of last memory page. @@ -98,7 +100,7 @@ static inline int bad_addr(unsigned long *addrp, unsigned long size) * This function checks if any part of the range <start,end> is mapped * with type. */ -int __meminit +int e820_any_mapped(unsigned long start, unsigned long end, unsigned type) { int i; @@ -112,6 +114,7 @@ e820_any_mapped(unsigned long start, unsigned long end, unsigned type) } return 0; } +EXPORT_SYMBOL_GPL(e820_any_mapped); /* * This function checks if the entire range <start,end> is mapped with type. @@ -255,22 +258,6 @@ void __init e820_reserve_resources(void) } } -/* Mark pages corresponding to given address range as nosave */ -static void __init -e820_mark_nosave_range(unsigned long start, unsigned long end) -{ - unsigned long pfn, max_pfn; - - if (start >= end) - return; - - printk("Nosave address range: %016lx - %016lx\n", start, end); - max_pfn = end >> PAGE_SHIFT; - for (pfn = start >> PAGE_SHIFT; pfn < max_pfn; pfn++) - if (pfn_valid(pfn)) - SetPageNosave(pfn_to_page(pfn)); -} - /* * Find the ranges of physical addresses that do not correspond to * e820 RAM areas and mark the corresponding pages as nosave for software @@ -289,13 +276,13 @@ void __init e820_mark_nosave_regions(void) struct e820entry *ei = &e820.map[i]; if (paddr < ei->addr) - e820_mark_nosave_range(paddr, - round_up(ei->addr, PAGE_SIZE)); + register_nosave_region(PFN_DOWN(paddr), + PFN_UP(ei->addr)); paddr = round_down(ei->addr + ei->size, PAGE_SIZE); if (ei->type != E820_RAM) - e820_mark_nosave_range(round_up(ei->addr, PAGE_SIZE), - paddr); + register_nosave_region(PFN_UP(ei->addr), + PFN_DOWN(paddr)); if (paddr >= (end_pfn << PAGE_SHIFT)) break; diff --git a/arch/x86_64/kernel/early-quirks.c b/arch/x86_64/kernel/early-quirks.c index fede55a..990d9c2 100644 --- a/arch/x86_64/kernel/early-quirks.c +++ b/arch/x86_64/kernel/early-quirks.c @@ -71,18 +71,6 @@ static void __init ati_bugs(void) } } -static void intel_bugs(void) -{ - u16 device = read_pci_config_16(0, 0, 0, PCI_DEVICE_ID); - -#ifdef CONFIG_SMP - if (device == PCI_DEVICE_ID_INTEL_E7320_MCH || - device == PCI_DEVICE_ID_INTEL_E7520_MCH || - device == PCI_DEVICE_ID_INTEL_E7525_MCH) - quirk_intel_irqbalance(); -#endif -} - struct chipset { u16 vendor; void (*f)(void); @@ -92,7 +80,6 @@ static struct chipset early_qrk[] __initdata = { { PCI_VENDOR_ID_NVIDIA, nvidia_bugs }, { PCI_VENDOR_ID_VIA, via_bugs }, { PCI_VENDOR_ID_ATI, ati_bugs }, - { PCI_VENDOR_ID_INTEL, intel_bugs}, {} }; diff --git a/arch/x86_64/kernel/early_printk.c b/arch/x86_64/kernel/early_printk.c index 47b6d903..92213d2 100644 --- a/arch/x86_64/kernel/early_printk.c +++ b/arch/x86_64/kernel/early_printk.c @@ -11,11 +11,10 @@ #ifdef __i386__ #include <asm/setup.h> -#define VGABASE (__ISA_IO_base + 0xb8000) #else #include <asm/bootsetup.h> -#define VGABASE ((void __iomem *)0xffffffff800b8000UL) #endif +#define VGABASE (__ISA_IO_base + 0xb8000) static int max_ypos = 25, max_xpos = 80; static int current_ypos = 25, current_xpos = 0; @@ -176,7 +175,7 @@ static noinline long simnow(long cmd, long a, long b, long c) return ret; } -void __init simnow_init(char *str) +static void __init simnow_init(char *str) { char *fn = "klog"; if (*str == '=') diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index ed4350c..fa984b5 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S @@ -701,6 +701,7 @@ END(spurious_interrupt) CFI_ADJUST_CFA_OFFSET 8 pushq %rax /* push real oldrax to the rdi slot */ CFI_ADJUST_CFA_OFFSET 8 + CFI_REL_OFFSET rax,0 leaq \sym(%rip),%rax jmp error_entry CFI_ENDPROC @@ -710,6 +711,7 @@ END(spurious_interrupt) XCPT_FRAME pushq %rax CFI_ADJUST_CFA_OFFSET 8 + CFI_REL_OFFSET rax,0 leaq \sym(%rip),%rax jmp error_entry CFI_ENDPROC @@ -817,6 +819,7 @@ paranoid_schedule\trace: */ KPROBE_ENTRY(error_entry) _frame RDI + CFI_REL_OFFSET rax,0 /* rdi slot contains rax, oldrax contains error code */ cld subq $14*8,%rsp @@ -824,6 +827,7 @@ KPROBE_ENTRY(error_entry) movq %rsi,13*8(%rsp) CFI_REL_OFFSET rsi,RSI movq 14*8(%rsp),%rsi /* load rax from rdi slot */ + CFI_REGISTER rax,rsi movq %rdx,12*8(%rsp) CFI_REL_OFFSET rdx,RDX movq %rcx,11*8(%rsp) @@ -857,6 +861,7 @@ error_swapgs: swapgs error_sti: movq %rdi,RDI(%rsp) + CFI_REL_OFFSET rdi,RDI movq %rsp,%rdi movq ORIG_RAX(%rsp),%rsi /* get error code */ movq $-1,ORIG_RAX(%rsp) 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-*(.text.blk_ordered_req_seq) -*(.text.blk_backing_dev_unplug) -*(.text.__bitmap_subset) -*(.text.__bitmap_and) -*(.text.bio_unmap_user) -*(.text.__bforget) -*(.text.bd_forget) -*(.text.bad_pipe_w) -*(.text.bad_get_user) -*(.text.audit_free) -*(.text.anon_vma_ctor) -*(.text.anon_pipe_buf_map) -*(.text.alloc_sock_iocb) -*(.text.alloc_fdset) -*(.text.aio_kick_handler) -*(.text.__add_entropy_words) -*(.text.add_disk_randomness) diff --git a/arch/x86_64/kernel/genapic.c b/arch/x86_64/kernel/genapic.c index 0b3603a..47496a4 100644 --- a/arch/x86_64/kernel/genapic.c +++ b/arch/x86_64/kernel/genapic.c @@ -11,120 +11,54 @@ #include <linux/threads.h> #include <linux/cpumask.h> #include <linux/string.h> +#include <linux/module.h> #include <linux/kernel.h> #include <linux/ctype.h> #include <linux/init.h> -#include <linux/module.h> #include <asm/smp.h> #include <asm/ipi.h> +#include <asm/genapic.h> -#if defined(CONFIG_ACPI) +#ifdef CONFIG_ACPI #include <acpi/acpi_bus.h> #endif /* which logical CPU number maps to which CPU (physical APIC ID) */ -u8 x86_cpu_to_apicid[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = BAD_APICID }; +u8 x86_cpu_to_apicid[NR_CPUS] __read_mostly + = { [0 ... NR_CPUS-1] = BAD_APICID }; EXPORT_SYMBOL(x86_cpu_to_apicid); -u8 x86_cpu_to_log_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID }; -extern struct genapic apic_cluster; -extern struct genapic apic_flat; -extern struct genapic apic_physflat; +u8 x86_cpu_to_log_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID }; -struct genapic *genapic = &apic_flat; -struct genapic *genapic_force; +struct genapic __read_mostly *genapic = &apic_flat; /* * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode. */ -void __init clustered_apic_check(void) +void __init setup_apic_routing(void) { - long i; - u8 clusters, max_cluster; - u8 id; - u8 cluster_cnt[NUM_APIC_CLUSTERS]; - int max_apic = 0; - - /* genapic selection can be forced because of certain quirks. - */ - if (genapic_force) { - genapic = genapic_force; - goto print; - } - -#if defined(CONFIG_ACPI) +#ifdef CONFIG_ACPI /* - * Some x86_64 machines use physical APIC mode regardless of how many - * procs/clusters are present (x86_64 ES7000 is an example). + * Quirk: some x86_64 machines can only use physical APIC mode + * regardless of how many processors are present (x86_64 ES7000 + * is an example). */ - if (acpi_gbl_FADT.header.revision > FADT2_REVISION_ID) - if (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL) { - genapic = &apic_cluster; - goto print; - } -#endif - - memset(cluster_cnt, 0, sizeof(cluster_cnt)); - for (i = 0; i < NR_CPUS; i++) { - id = bios_cpu_apicid[i]; - if (id == BAD_APICID) - continue; - if (id > max_apic) - max_apic = id; - cluster_cnt[APIC_CLUSTERID(id)]++; - } - - /* Don't use clustered mode on AMD platforms. */ - if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) { + if (acpi_gbl_FADT.header.revision > FADT2_REVISION_ID && + (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL)) genapic = &apic_physflat; -#ifndef CONFIG_HOTPLUG_CPU - /* In the CPU hotplug case we cannot use broadcast mode - because that opens a race when a CPU is removed. - Stay at physflat mode in this case. - It is bad to do this unconditionally though. Once - we have ACPI platform support for CPU hotplug - we should detect hotplug capablity from ACPI tables and - only do this when really needed. -AK */ - if (max_apic <= 8) - genapic = &apic_flat; + else #endif - goto print; - } - clusters = 0; - max_cluster = 0; - - for (i = 0; i < NUM_APIC_CLUSTERS; i++) { - if (cluster_cnt[i] > 0) { - ++clusters; - if (cluster_cnt[i] > max_cluster) - max_cluster = cluster_cnt[i]; - } - } - - /* - * If we have clusters <= 1 and CPUs <= 8 in cluster 0, then flat mode, - * else if max_cluster <= 4 and cluster_cnt[15] == 0, clustered logical - * else physical mode. - * (We don't use lowest priority delivery + HW APIC IRQ steering, so - * can ignore the clustered logical case and go straight to physical.) - */ - if (clusters <= 1 && max_cluster <= 8 && cluster_cnt[0] == max_cluster) { -#ifdef CONFIG_HOTPLUG_CPU - /* Don't use APIC shortcuts in CPU hotplug to avoid races */ - genapic = &apic_physflat; -#else + if (cpus_weight(cpu_possible_map) <= 8) genapic = &apic_flat; -#endif - } else - genapic = &apic_cluster; + else + genapic = &apic_physflat; -print: printk(KERN_INFO "Setting APIC routing to %s\n", genapic->name); } -/* Same for both flat and clustered. */ +/* Same for both flat and physical. */ void send_IPI_self(int vector) { diff --git a/arch/x86_64/kernel/genapic_cluster.c b/arch/x86_64/kernel/genapic_cluster.c deleted file mode 100644 index 73d7630..0000000 --- a/arch/x86_64/kernel/genapic_cluster.c +++ /dev/null @@ -1,137 +0,0 @@ -/* - * Copyright 2004 James Cleverdon, IBM. - * Subject to the GNU Public License, v.2 - * - * Clustered APIC subarch code. Up to 255 CPUs, physical delivery. - * (A more realistic maximum is around 230 CPUs.) - * - * Hacked for x86-64 by James Cleverdon from i386 architecture code by - * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and - * James Cleverdon. - */ -#include <linux/threads.h> -#include <linux/cpumask.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/ctype.h> -#include <linux/init.h> -#include <asm/smp.h> -#include <asm/ipi.h> - - -/* - * Set up the logical destination ID. - * - * Intel recommends to set DFR, LDR and TPR before enabling - * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel - * document number 292116). So here it goes... - */ -static void cluster_init_apic_ldr(void) -{ - unsigned long val, id; - long i, count; - u8 lid; - u8 my_id = hard_smp_processor_id(); - u8 my_cluster = APIC_CLUSTER(my_id); - - /* Create logical APIC IDs by counting CPUs already in cluster. */ - for (count = 0, i = NR_CPUS; --i >= 0; ) { - lid = x86_cpu_to_log_apicid[i]; - if (lid != BAD_APICID && APIC_CLUSTER(lid) == my_cluster) - ++count; - } - /* - * We only have a 4 wide bitmap in cluster mode. There's no way - * to get above 60 CPUs and still give each one it's own bit. - * But, we're using physical IRQ delivery, so we don't care. - * Use bit 3 for the 4th through Nth CPU in each cluster. - */ - if (count >= XAPIC_DEST_CPUS_SHIFT) - count = 3; - id = my_cluster | (1UL << count); - x86_cpu_to_log_apicid[smp_processor_id()] = id; - apic_write(APIC_DFR, APIC_DFR_CLUSTER); - val = apic_read(APIC_LDR) & ~APIC_LDR_MASK; - val |= SET_APIC_LOGICAL_ID(id); - apic_write(APIC_LDR, val); -} - -/* Start with all IRQs pointing to boot CPU. IRQ balancing will shift them. */ - -static cpumask_t cluster_target_cpus(void) -{ - return cpumask_of_cpu(0); -} - -static cpumask_t cluster_vector_allocation_domain(int cpu) -{ - cpumask_t domain = CPU_MASK_NONE; - cpu_set(cpu, domain); - return domain; -} - -static void cluster_send_IPI_mask(cpumask_t mask, int vector) -{ - send_IPI_mask_sequence(mask, vector); -} - -static void cluster_send_IPI_allbutself(int vector) -{ - cpumask_t mask = cpu_online_map; - - cpu_clear(smp_processor_id(), mask); - - if (!cpus_empty(mask)) - cluster_send_IPI_mask(mask, vector); -} - -static void cluster_send_IPI_all(int vector) -{ - cluster_send_IPI_mask(cpu_online_map, vector); -} - -static int cluster_apic_id_registered(void) -{ - return 1; -} - -static unsigned int cluster_cpu_mask_to_apicid(cpumask_t cpumask) -{ - int cpu; - - /* - * We're using fixed IRQ delivery, can only return one phys APIC ID. - * May as well be the first. - */ - cpu = first_cpu(cpumask); - if ((unsigned)cpu < NR_CPUS) - return x86_cpu_to_apicid[cpu]; - else - return BAD_APICID; -} - -/* cpuid returns the value latched in the HW at reset, not the APIC ID - * register's value. For any box whose BIOS changes APIC IDs, like - * clustered APIC systems, we must use hard_smp_processor_id. - * - * See Intel's IA-32 SW Dev's Manual Vol2 under CPUID. - */ -static unsigned int phys_pkg_id(int index_msb) -{ - return hard_smp_processor_id() >> index_msb; -} - -struct genapic apic_cluster = { - .name = "clustered", - .int_delivery_mode = dest_Fixed, - .int_dest_mode = (APIC_DEST_PHYSICAL != 0), - .target_cpus = cluster_target_cpus, - .vector_allocation_domain = cluster_vector_allocation_domain, - .apic_id_registered = cluster_apic_id_registered, - .init_apic_ldr = cluster_init_apic_ldr, - .send_IPI_all = cluster_send_IPI_all, - .send_IPI_allbutself = cluster_send_IPI_allbutself, - .send_IPI_mask = cluster_send_IPI_mask, - .cpu_mask_to_apicid = cluster_cpu_mask_to_apicid, - .phys_pkg_id = phys_pkg_id, -}; diff --git a/arch/x86_64/kernel/genapic_flat.c b/arch/x86_64/kernel/genapic_flat.c index 7c01db8..ecb01ee 100644 --- a/arch/x86_64/kernel/genapic_flat.c +++ b/arch/x86_64/kernel/genapic_flat.c @@ -8,6 +8,7 @@ * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and * James Cleverdon. */ +#include <linux/errno.h> #include <linux/threads.h> #include <linux/cpumask.h> #include <linux/string.h> @@ -16,6 +17,7 @@ #include <linux/init.h> #include <asm/smp.h> #include <asm/ipi.h> +#include <asm/genapic.h> static cpumask_t flat_target_cpus(void) { @@ -60,31 +62,10 @@ static void flat_init_apic_ldr(void) static void flat_send_IPI_mask(cpumask_t cpumask, int vector) { unsigned long mask = cpus_addr(cpumask)[0]; - unsigned long cfg; unsigned long flags; local_irq_save(flags); - - /* - * Wait for idle. - */ - apic_wait_icr_idle(); - - /* - * prepare target chip field - */ - cfg = __prepare_ICR2(mask); - apic_write(APIC_ICR2, cfg); - - /* - * program the ICR - */ - cfg = __prepare_ICR(0, vector, APIC_DEST_LOGICAL); - - /* - * Send the IPI. The write to APIC_ICR fires this off. - */ - apic_write(APIC_ICR, cfg); + __send_IPI_dest_field(mask, vector, APIC_DEST_LOGICAL); local_irq_restore(flags); } diff --git a/arch/x86_64/kernel/head.S b/arch/x86_64/kernel/head.S index 598a4d0..1fab487 100644 --- a/arch/x86_64/kernel/head.S +++ b/arch/x86_64/kernel/head.S @@ -5,6 +5,7 @@ * Copyright (C) 2000 Pavel Machek <pavel@suse.cz> * Copyright (C) 2000 Karsten Keil <kkeil@suse.de> * Copyright (C) 2001,2002 Andi Kleen <ak@suse.de> + * Copyright (C) 2005 Eric Biederman <ebiederm@xmission.com> */ @@ -13,97 +14,131 @@ #include <linux/init.h> #include <asm/desc.h> #include <asm/segment.h> +#include <asm/pgtable.h> #include <asm/page.h> #include <asm/msr.h> #include <asm/cache.h> - + /* we are not able to switch in one step to the final KERNEL ADRESS SPACE - * because we need identity-mapped pages on setup so define __START_KERNEL to - * 0x100000 for this stage - * + * because we need identity-mapped pages. + * */ .text .section .bootstrap.text - .code32 - .globl startup_32 -/* %bx: 1 if coming from smp trampoline on secondary cpu */ -startup_32: - + .code64 + .globl startup_64 +startup_64: + /* - * At this point the CPU runs in 32bit protected mode (CS.D = 1) with - * paging disabled and the point of this file is to switch to 64bit - * long mode with a kernel mapping for kerneland to jump into the - * kernel virtual addresses. - * There is no stack until we set one up. + * At this point the CPU runs in 64bit mode CS.L = 1 CS.D = 1, + * and someone has loaded an identity mapped page table + * for us. These identity mapped page tables map all of the + * kernel pages and possibly all of memory. + * + * %esi holds a physical pointer to real_mode_data. + * + * We come here either directly from a 64bit bootloader, or from + * arch/x86_64/boot/compressed/head.S. + * + * We only come here initially at boot nothing else comes here. + * + * Since we may be loaded at an address different from what we were + * compiled to run at we first fixup the physical addresses in our page + * tables and then reload them. */ - /* Initialize the %ds segment register */ - movl $__KERNEL_DS,%eax - movl %eax,%ds - - /* Load new GDT with the 64bit segments using 32bit descriptor */ - lgdt pGDT32 - __START_KERNEL_map - - /* If the CPU doesn't support CPUID this will double fault. - * Unfortunately it is hard to check for CPUID without a stack. + /* Compute the delta between the address I am compiled to run at and the + * address I am actually running at. */ - - /* Check if extended functions are implemented */ - movl $0x80000000, %eax - cpuid - cmpl $0x80000000, %eax - jbe no_long_mode - /* Check if long mode is implemented */ - mov $0x80000001, %eax - cpuid - btl $29, %edx - jnc no_long_mode - - /* - * Prepare for entering 64bits mode + leaq _text(%rip), %rbp + subq $_text - __START_KERNEL_map, %rbp + + /* Is the address not 2M aligned? */ + movq %rbp, %rax + andl $~LARGE_PAGE_MASK, %eax + testl %eax, %eax + jnz bad_address + + /* Is the address too large? */ + leaq _text(%rip), %rdx + movq $PGDIR_SIZE, %rax + cmpq %rax, %rdx + jae bad_address + + /* Fixup the physical addresses in the page table */ + addq %rbp, init_level4_pgt + 0(%rip) + addq %rbp, init_level4_pgt + (258*8)(%rip) + addq %rbp, init_level4_pgt + (511*8)(%rip) + + addq %rbp, level3_ident_pgt + 0(%rip) + addq %rbp, level3_kernel_pgt + (510*8)(%rip) + + /* Add an Identity mapping if I am above 1G */ + leaq _text(%rip), %rdi + andq $LARGE_PAGE_MASK, %rdi + + movq %rdi, %rax + shrq $PUD_SHIFT, %rax + andq $(PTRS_PER_PUD - 1), %rax + jz ident_complete + + leaq (level2_spare_pgt - __START_KERNEL_map + _KERNPG_TABLE)(%rbp), %rdx + leaq level3_ident_pgt(%rip), %rbx + movq %rdx, 0(%rbx, %rax, 8) + + movq %rdi, %rax + shrq $PMD_SHIFT, %rax + andq $(PTRS_PER_PMD - 1), %rax + leaq __PAGE_KERNEL_LARGE_EXEC(%rdi), %rdx + leaq level2_spare_pgt(%rip), %rbx + movq %rdx, 0(%rbx, %rax, 8) +ident_complete: + + /* Fixup the kernel text+data virtual addresses + */ + leaq level2_kernel_pgt(%rip), %rdi + leaq 4096(%rdi), %r8 + /* See if it is a valid page table entry */ +1: testq $1, 0(%rdi) + jz 2f + addq %rbp, 0(%rdi) + /* Go to the next page */ +2: addq $8, %rdi + cmp %r8, %rdi + jne 1b + + /* Fixup phys_base */ + addq %rbp, phys_base(%rip) - /* Enable PAE mode */ - xorl %eax, %eax - btsl $5, %eax - movl %eax, %cr4 - - /* Setup early boot stage 4 level pagetables */ - movl $(boot_level4_pgt - __START_KERNEL_map), %eax - movl %eax, %cr3 - - /* Setup EFER (Extended Feature Enable Register) */ - movl $MSR_EFER, %ecx - rdmsr - - /* Enable Long Mode */ - btsl $_EFER_LME, %eax - - /* Make changes effective */ - wrmsr +#ifdef CONFIG_SMP + addq %rbp, trampoline_level4_pgt + 0(%rip) + addq %rbp, trampoline_level4_pgt + (511*8)(%rip) +#endif +#ifdef CONFIG_ACPI_SLEEP + addq %rbp, wakeup_level4_pgt + 0(%rip) + addq %rbp, wakeup_level4_pgt + (511*8)(%rip) +#endif - xorl %eax, %eax - btsl $31, %eax /* Enable paging and in turn activate Long Mode */ - btsl $0, %eax /* Enable protected mode */ - /* Make changes effective */ - movl %eax, %cr0 - /* - * At this point we're in long mode but in 32bit compatibility mode - * with EFER.LME = 1, CS.L = 0, CS.D = 1 (and in turn - * EFER.LMA = 1). Now we want to jump in 64bit mode, to do that we use - * the new gdt/idt that has __KERNEL_CS with CS.L = 1. + /* Due to ENTRY(), sometimes the empty space gets filled with + * zeros. Better take a jmp than relying on empty space being + * filled with 0x90 (nop) */ - ljmp $__KERNEL_CS, $(startup_64 - __START_KERNEL_map) - - .code64 - .org 0x100 - .globl startup_64 -startup_64: - /* We come here either from startup_32 - * or directly from a 64bit bootloader. - * Since we may have come directly from a bootloader we - * reload the page tables here. + jmp secondary_startup_64 +ENTRY(secondary_startup_64) + /* + * At this point the CPU runs in 64bit mode CS.L = 1 CS.D = 1, + * and someone has loaded a mapped page table. + * + * %esi holds a physical pointer to real_mode_data. + * + * We come here either from startup_64 (using physical addresses) + * or from trampoline.S (using virtual addresses). + * + * Using virtual addresses from trampoline.S removes the need + * to have any identity mapped pages in the kernel page table + * after the boot processor executes this code. */ /* Enable PAE mode and PGE */ @@ -113,9 +148,15 @@ startup_64: movq %rax, %cr4 /* Setup early boot stage 4 level pagetables. */ - movq $(boot_level4_pgt - __START_KERNEL_map), %rax + movq $(init_level4_pgt - __START_KERNEL_map), %rax + addq phys_base(%rip), %rax movq %rax, %cr3 + /* Ensure I am executing from virtual addresses */ + movq $1f, %rax + jmp *%rax +1: + /* Check if nx is implemented */ movl $0x80000001, %eax cpuid @@ -124,17 +165,11 @@ startup_64: /* Setup EFER (Extended Feature Enable Register) */ movl $MSR_EFER, %ecx rdmsr - - /* Enable System Call */ - btsl $_EFER_SCE, %eax - - /* No Execute supported? */ - btl $20,%edi + btsl $_EFER_SCE, %eax /* Enable System Call */ + btl $20,%edi /* No Execute supported? */ jnc 1f btsl $_EFER_NX, %eax -1: - /* Make changes effective */ - wrmsr +1: wrmsr /* Make changes effective */ /* Setup cr0 */ #define CR0_PM 1 /* protected mode */ @@ -161,7 +196,7 @@ startup_64: * addresses where we're currently running on. We have to do that here * because in 32bit we couldn't load a 64bit linear address. */ - lgdt cpu_gdt_descr + lgdt cpu_gdt_descr(%rip) /* set up data segments. actually 0 would do too */ movl $__KERNEL_DS,%eax @@ -212,6 +247,9 @@ initial_code: init_rsp: .quad init_thread_union+THREAD_SIZE-8 +bad_address: + jmp bad_address + ENTRY(early_idt_handler) cmpl $2,early_recursion_flag(%rip) jz 1f @@ -240,110 +278,66 @@ early_idt_msg: early_idt_ripmsg: .asciz "RIP %s\n" -.code32 -ENTRY(no_long_mode) - /* This isn't an x86-64 CPU so hang */ -1: - jmp 1b - -.org 0xf00 - .globl pGDT32 -pGDT32: - .word gdt_end-cpu_gdt_table-1 - .long cpu_gdt_table-__START_KERNEL_map - -.org 0xf10 -ljumpvector: - .long startup_64-__START_KERNEL_map - .word __KERNEL_CS +.balign PAGE_SIZE -ENTRY(stext) -ENTRY(_stext) - - $page = 0 #define NEXT_PAGE(name) \ - $page = $page + 1; \ - .org $page * 0x1000; \ - phys_/**/name = $page * 0x1000 + __PHYSICAL_START; \ + .balign PAGE_SIZE; \ ENTRY(name) +/* Automate the creation of 1 to 1 mapping pmd entries */ +#define PMDS(START, PERM, COUNT) \ + i = 0 ; \ + .rept (COUNT) ; \ + .quad (START) + (i << 21) + (PERM) ; \ + i = i + 1 ; \ + .endr + + /* + * This default setting generates an ident mapping at address 0x100000 + * and a mapping for the kernel that precisely maps virtual address + * 0xffffffff80000000 to physical address 0x000000. (always using + * 2Mbyte large pages provided by PAE mode) + */ NEXT_PAGE(init_level4_pgt) - /* This gets initialized in x86_64_start_kernel */ - .fill 512,8,0 + .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE + .fill 257,8,0 + .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE + .fill 252,8,0 + /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */ + .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE NEXT_PAGE(level3_ident_pgt) - .quad phys_level2_ident_pgt | 0x007 + .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE .fill 511,8,0 NEXT_PAGE(level3_kernel_pgt) .fill 510,8,0 /* (2^48-(2*1024*1024*1024)-((2^39)*511))/(2^30) = 510 */ - .quad phys_level2_kernel_pgt | 0x007 + .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE .fill 1,8,0 NEXT_PAGE(level2_ident_pgt) - /* 40MB for bootup. */ - i = 0 - .rept 20 - .quad i << 21 | 0x083 - i = i + 1 - .endr - /* Temporary mappings for the super early allocator in arch/x86_64/mm/init.c */ - .globl temp_boot_pmds -temp_boot_pmds: - .fill 492,8,0 - + /* Since I easily can, map the first 1G. + * Don't set NX because code runs from these pages. + */ + PMDS(0x0000000000000000, __PAGE_KERNEL_LARGE_EXEC, PTRS_PER_PMD) + NEXT_PAGE(level2_kernel_pgt) /* 40MB kernel mapping. The kernel code cannot be bigger than that. When you change this change KERNEL_TEXT_SIZE in page.h too. */ /* (2^48-(2*1024*1024*1024)-((2^39)*511)-((2^30)*510)) = 0 */ - i = 0 - .rept 20 - .quad i << 21 | 0x183 - i = i + 1 - .endr + PMDS(0x0000000000000000, __PAGE_KERNEL_LARGE_EXEC|_PAGE_GLOBAL, + KERNEL_TEXT_SIZE/PMD_SIZE) /* Module mapping starts here */ - .fill 492,8,0 + .fill (PTRS_PER_PMD - (KERNEL_TEXT_SIZE/PMD_SIZE)),8,0 -NEXT_PAGE(level3_physmem_pgt) - .quad phys_level2_kernel_pgt | 0x007 /* so that __va works even before pagetable_init */ - .fill 511,8,0 +NEXT_PAGE(level2_spare_pgt) + .fill 512,8,0 +#undef PMDS #undef NEXT_PAGE .data - -#ifdef CONFIG_ACPI_SLEEP - .align PAGE_SIZE -ENTRY(wakeup_level4_pgt) - .quad phys_level3_ident_pgt | 0x007 - .fill 255,8,0 - .quad phys_level3_physmem_pgt | 0x007 - .fill 254,8,0 - /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */ - .quad phys_level3_kernel_pgt | 0x007 -#endif - -#ifndef CONFIG_HOTPLUG_CPU - __INITDATA -#endif - /* - * This default setting generates an ident mapping at address 0x100000 - * and a mapping for the kernel that precisely maps virtual address - * 0xffffffff80000000 to physical address 0x000000. (always using - * 2Mbyte large pages provided by PAE mode) - */ - .align PAGE_SIZE -ENTRY(boot_level4_pgt) - .quad phys_level3_ident_pgt | 0x007 - .fill 255,8,0 - .quad phys_level3_physmem_pgt | 0x007 - .fill 254,8,0 - /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */ - .quad phys_level3_kernel_pgt | 0x007 - - .data - .align 16 .globl cpu_gdt_descr cpu_gdt_descr: @@ -357,6 +351,10 @@ gdt: .endr #endif +ENTRY(phys_base) + /* This must match the first entry in level2_kernel_pgt */ + .quad 0x0000000000000000 + /* We need valid kernel segments for data and code in long mode too * IRET will check the segment types kkeil 2000/10/28 * Also sysret mandates a special GDT layout @@ -370,13 +368,13 @@ gdt: ENTRY(cpu_gdt_table) .quad 0x0000000000000000 /* NULL descriptor */ + .quad 0x00cf9b000000ffff /* __KERNEL32_CS */ + .quad 0x00af9b000000ffff /* __KERNEL_CS */ + .quad 0x00cf93000000ffff /* __KERNEL_DS */ + .quad 0x00cffb000000ffff /* __USER32_CS */ + .quad 0x00cff3000000ffff /* __USER_DS, __USER32_DS */ + .quad 0x00affb000000ffff /* __USER_CS */ .quad 0x0 /* unused */ - .quad 0x00af9a000000ffff /* __KERNEL_CS */ - .quad 0x00cf92000000ffff /* __KERNEL_DS */ - .quad 0x00cffa000000ffff /* __USER32_CS */ - .quad 0x00cff2000000ffff /* __USER_DS, __USER32_DS */ - .quad 0x00affa000000ffff /* __USER_CS */ - .quad 0x00cf9a000000ffff /* __KERNEL32_CS */ .quad 0,0 /* TSS */ .quad 0,0 /* LDT */ .quad 0,0,0 /* three TLS descriptors */ diff --git a/arch/x86_64/kernel/head64.c b/arch/x86_64/kernel/head64.c index 5f197b0..213d90e 100644 --- a/arch/x86_64/kernel/head64.c +++ b/arch/x86_64/kernel/head64.c @@ -18,8 +18,16 @@ #include <asm/setup.h> #include <asm/desc.h> #include <asm/pgtable.h> +#include <asm/tlbflush.h> #include <asm/sections.h> +static void __init zap_identity_mappings(void) +{ + pgd_t *pgd = pgd_offset_k(0UL); + pgd_clear(pgd); + __flush_tlb(); +} + /* Don't add a printk in there. printk relies on the PDA which is not initialized yet. */ static void __init clear_bss(void) @@ -29,25 +37,24 @@ static void __init clear_bss(void) } #define NEW_CL_POINTER 0x228 /* Relative to real mode data */ -#define OLD_CL_MAGIC_ADDR 0x90020 +#define OLD_CL_MAGIC_ADDR 0x20 #define OLD_CL_MAGIC 0xA33F -#define OLD_CL_BASE_ADDR 0x90000 -#define OLD_CL_OFFSET 0x90022 +#define OLD_CL_OFFSET 0x22 static void __init copy_bootdata(char *real_mode_data) { - int new_data; + unsigned long new_data; char * command_line; memcpy(x86_boot_params, real_mode_data, BOOT_PARAM_SIZE); - new_data = *(int *) (x86_boot_params + NEW_CL_POINTER); + new_data = *(u32 *) (x86_boot_params + NEW_CL_POINTER); if (!new_data) { - if (OLD_CL_MAGIC != * (u16 *) OLD_CL_MAGIC_ADDR) { + if (OLD_CL_MAGIC != *(u16 *)(real_mode_data + OLD_CL_MAGIC_ADDR)) { return; } - new_data = OLD_CL_BASE_ADDR + * (u16 *) OLD_CL_OFFSET; + new_data = __pa(real_mode_data) + *(u16 *)(real_mode_data + OLD_CL_OFFSET); } - command_line = (char *) ((u64)(new_data)); + command_line = __va(new_data); memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE); } @@ -55,26 +62,30 @@ void __init x86_64_start_kernel(char * real_mode_data) { int i; + /* + * Make sure kernel is aligned to 2MB address. Catching it at compile + * time is better. Change your config file and compile the kernel + * for a 2MB aligned address (CONFIG_PHYSICAL_START) + */ + BUILD_BUG_ON(CONFIG_PHYSICAL_START & (__KERNEL_ALIGN - 1)); + /* clear bss before set_intr_gate with early_idt_handler */ clear_bss(); + /* Make NULL pointers segfault */ + zap_identity_mappings(); + for (i = 0; i < IDT_ENTRIES; i++) set_intr_gate(i, early_idt_handler); asm volatile("lidt %0" :: "m" (idt_descr)); early_printk("Kernel alive\n"); - /* - * switch to init_level4_pgt from boot_level4_pgt - */ - memcpy(init_level4_pgt, boot_level4_pgt, PTRS_PER_PGD*sizeof(pgd_t)); - asm volatile("movq %0,%%cr3" :: "r" (__pa_symbol(&init_level4_pgt))); - for (i = 0; i < NR_CPUS; i++) cpu_pda(i) = &boot_cpu_pda[i]; pda_init(0); - copy_bootdata(real_mode_data); + copy_bootdata(__va(real_mode_data)); #ifdef CONFIG_SMP cpu_set(0, cpu_online_map); #endif diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c index c6a5bc7..2a2df14 100644 --- a/arch/x86_64/kernel/io_apic.c +++ b/arch/x86_64/kernel/io_apic.c @@ -907,10 +907,6 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, in enable_8259A_irq(0); } -void __init UNEXPECTED_IO_APIC(void) -{ -} - void __apicdebuginit print_IO_APIC(void) { int apic, i; @@ -946,40 +942,16 @@ void __apicdebuginit print_IO_APIC(void) printk(KERN_DEBUG "IO APIC #%d......\n", mp_ioapics[apic].mpc_apicid); printk(KERN_DEBUG ".... register #00: %08X\n", reg_00.raw); printk(KERN_DEBUG "....... : physical APIC id: %02X\n", reg_00.bits.ID); - if (reg_00.bits.__reserved_1 || reg_00.bits.__reserved_2) - UNEXPECTED_IO_APIC(); printk(KERN_DEBUG ".... register #01: %08X\n", *(int *)®_01); printk(KERN_DEBUG "....... : max redirection entries: %04X\n", reg_01.bits.entries); - if ( (reg_01.bits.entries != 0x0f) && /* older (Neptune) boards */ - (reg_01.bits.entries != 0x17) && /* typical ISA+PCI boards */ - (reg_01.bits.entries != 0x1b) && /* Compaq Proliant boards */ - (reg_01.bits.entries != 0x1f) && /* dual Xeon boards */ - (reg_01.bits.entries != 0x22) && /* bigger Xeon boards */ - (reg_01.bits.entries != 0x2E) && - (reg_01.bits.entries != 0x3F) && - (reg_01.bits.entries != 0x03) - ) - UNEXPECTED_IO_APIC(); printk(KERN_DEBUG "....... : PRQ implemented: %X\n", reg_01.bits.PRQ); printk(KERN_DEBUG "....... : IO APIC version: %04X\n", reg_01.bits.version); - if ( (reg_01.bits.version != 0x01) && /* 82489DX IO-APICs */ - (reg_01.bits.version != 0x02) && /* 82801BA IO-APICs (ICH2) */ - (reg_01.bits.version != 0x10) && /* oldest IO-APICs */ - (reg_01.bits.version != 0x11) && /* Pentium/Pro IO-APICs */ - (reg_01.bits.version != 0x13) && /* Xeon IO-APICs */ - (reg_01.bits.version != 0x20) /* Intel P64H (82806 AA) */ - ) - UNEXPECTED_IO_APIC(); - if (reg_01.bits.__reserved_1 || reg_01.bits.__reserved_2) - UNEXPECTED_IO_APIC(); if (reg_01.bits.version >= 0x10) { printk(KERN_DEBUG ".... register #02: %08X\n", reg_02.raw); printk(KERN_DEBUG "....... : arbitration: %02X\n", reg_02.bits.arbitration); - if (reg_02.bits.__reserved_1 || reg_02.bits.__reserved_2) - UNEXPECTED_IO_APIC(); } printk(KERN_DEBUG ".... IRQ redirection table:\n"); @@ -1407,8 +1379,7 @@ static void irq_complete_move(unsigned int irq) vector = ~get_irq_regs()->orig_rax; me = smp_processor_id(); - if ((vector == cfg->vector) && - cpu_isset(smp_processor_id(), cfg->domain)) { + if ((vector == cfg->vector) && cpu_isset(me, cfg->domain)) { cpumask_t cleanup_mask; cpus_and(cleanup_mask, cfg->old_domain, cpu_online_map); @@ -1983,18 +1954,18 @@ int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc) if (irq < 0) return irq; - set_irq_msi(irq, desc); ret = msi_compose_msg(dev, irq, &msg); if (ret < 0) { destroy_irq(irq); return ret; } + set_irq_msi(irq, desc); write_msi_msg(irq, &msg); set_irq_chip_and_handler_name(irq, &msi_chip, handle_edge_irq, "edge"); - return irq; + return 0; } void arch_teardown_msi_irq(unsigned int irq) diff --git a/arch/x86_64/kernel/ioport.c b/arch/x86_64/kernel/ioport.c index 745b1f0..387d347 100644 --- a/arch/x86_64/kernel/ioport.c +++ b/arch/x86_64/kernel/ioport.c @@ -16,6 +16,7 @@ #include <linux/stddef.h> #include <linux/slab.h> #include <linux/thread_info.h> +#include <linux/syscalls.h> /* Set EXTENT bits starting at BASE in BITMAP to value TURN_ON. */ static void set_bitmap(unsigned long *bitmap, unsigned int base, unsigned int extent, int new_value) diff --git a/arch/x86_64/kernel/machine_kexec.c b/arch/x86_64/kernel/machine_kexec.c index 0497e3b..c3a5547 100644 --- a/arch/x86_64/kernel/machine_kexec.c +++ b/arch/x86_64/kernel/machine_kexec.c @@ -189,21 +189,21 @@ NORET_TYPE void machine_kexec(struct kimage *image) control_page = page_address(image->control_code_page) + PAGE_SIZE; memcpy(control_page, relocate_kernel, PAGE_SIZE); - page_list[PA_CONTROL_PAGE] = __pa(control_page); + page_list[PA_CONTROL_PAGE] = virt_to_phys(control_page); page_list[VA_CONTROL_PAGE] = (unsigned long)relocate_kernel; - page_list[PA_PGD] = __pa(kexec_pgd); + page_list[PA_PGD] = virt_to_phys(&kexec_pgd); page_list[VA_PGD] = (unsigned long)kexec_pgd; - page_list[PA_PUD_0] = __pa(kexec_pud0); + page_list[PA_PUD_0] = virt_to_phys(&kexec_pud0); page_list[VA_PUD_0] = (unsigned long)kexec_pud0; - page_list[PA_PMD_0] = __pa(kexec_pmd0); + page_list[PA_PMD_0] = virt_to_phys(&kexec_pmd0); page_list[VA_PMD_0] = (unsigned long)kexec_pmd0; - page_list[PA_PTE_0] = __pa(kexec_pte0); + page_list[PA_PTE_0] = virt_to_phys(&kexec_pte0); page_list[VA_PTE_0] = (unsigned long)kexec_pte0; - page_list[PA_PUD_1] = __pa(kexec_pud1); + page_list[PA_PUD_1] = virt_to_phys(&kexec_pud1); page_list[VA_PUD_1] = (unsigned long)kexec_pud1; - page_list[PA_PMD_1] = __pa(kexec_pmd1); + page_list[PA_PMD_1] = virt_to_phys(&kexec_pmd1); page_list[VA_PMD_1] = (unsigned long)kexec_pmd1; - page_list[PA_PTE_1] = __pa(kexec_pte1); + page_list[PA_PTE_1] = virt_to_phys(&kexec_pte1); page_list[VA_PTE_1] = (unsigned long)kexec_pte1; page_list[PA_TABLE_PAGE] = diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c index 8011a8e..fa26726 100644 --- a/arch/x86_64/kernel/mce.c +++ b/arch/x86_64/kernel/mce.c @@ -323,10 +323,13 @@ void mce_log_therm_throt_event(unsigned int cpu, __u64 status) #endif /* CONFIG_X86_MCE_INTEL */ /* - * Periodic polling timer for "silent" machine check errors. + * Periodic polling timer for "silent" machine check errors. If the + * poller finds an MCE, poll 2x faster. When the poller finds no more + * errors, poll 2x slower (up to check_interval seconds). */ static int check_interval = 5 * 60; /* 5 minutes */ +static int next_interval; /* in jiffies */ static void mcheck_timer(struct work_struct *work); static DECLARE_DELAYED_WORK(mcheck_work, mcheck_timer); @@ -339,7 +342,6 @@ static void mcheck_check_cpu(void *info) static void mcheck_timer(struct work_struct *work) { on_each_cpu(mcheck_check_cpu, NULL, 1, 1); - schedule_delayed_work(&mcheck_work, check_interval * HZ); /* * It's ok to read stale data here for notify_user and @@ -349,17 +351,30 @@ static void mcheck_timer(struct work_struct *work) * writes. */ if (notify_user && console_logged) { + static unsigned long last_print; + unsigned long now = jiffies; + + /* if we logged an MCE, reduce the polling interval */ + next_interval = max(next_interval/2, HZ/100); notify_user = 0; clear_bit(0, &console_logged); - printk(KERN_INFO "Machine check events logged\n"); + if (time_after_eq(now, last_print + (check_interval*HZ))) { + last_print = now; + printk(KERN_INFO "Machine check events logged\n"); + } + } else { + next_interval = min(next_interval*2, check_interval*HZ); } + + schedule_delayed_work(&mcheck_work, next_interval); } static __init int periodic_mcheck_init(void) { - if (check_interval) - schedule_delayed_work(&mcheck_work, check_interval*HZ); + next_interval = check_interval * HZ; + if (next_interval) + schedule_delayed_work(&mcheck_work, next_interval); return 0; } __initcall(periodic_mcheck_init); @@ -597,12 +612,13 @@ static int mce_resume(struct sys_device *dev) /* Reinit MCEs after user configuration changes */ static void mce_restart(void) { - if (check_interval) + if (next_interval) cancel_delayed_work(&mcheck_work); /* Timer race is harmless here */ on_each_cpu(mce_init, NULL, 1, 1); - if (check_interval) - schedule_delayed_work(&mcheck_work, check_interval*HZ); + next_interval = check_interval * HZ; + if (next_interval) + schedule_delayed_work(&mcheck_work, next_interval); } static struct sysdev_class mce_sysclass = { diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c index 455aa0b..d0dc489 100644 --- a/arch/x86_64/kernel/mpparse.c +++ b/arch/x86_64/kernel/mpparse.c @@ -300,7 +300,7 @@ static int __init smp_read_mpc(struct mp_config_table *mpc) } } } - clustered_apic_check(); + setup_apic_routing(); if (!num_processors) printk(KERN_ERR "MPTABLE: no processors registered!\n"); return num_processors; diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index dfab9f1..6cd2b30 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c @@ -27,28 +27,11 @@ #include <asm/proto.h> #include <asm/kdebug.h> #include <asm/mce.h> -#include <asm/intel_arch_perfmon.h> int unknown_nmi_panic; int nmi_watchdog_enabled; int panic_on_unrecovered_nmi; -/* perfctr_nmi_owner tracks the ownership of the perfctr registers: - * evtsel_nmi_owner tracks the ownership of the event selection - * - different performance counters/ event selection may be reserved for - * different subsystems this reservation system just tries to coordinate - * things a little - */ - -/* this number is calculated from Intel's MSR_P4_CRU_ESCR5 register and it's - * offset from MSR_P4_BSU_ESCR0. It will be the max for all platforms (for now) - */ -#define NMI_MAX_COUNTER_BITS 66 -#define NMI_MAX_COUNTER_LONGS BITS_TO_LONGS(NMI_MAX_COUNTER_BITS) - -static DEFINE_PER_CPU(unsigned, perfctr_nmi_owner[NMI_MAX_COUNTER_LONGS]); -static DEFINE_PER_CPU(unsigned, evntsel_nmi_owner[NMI_MAX_COUNTER_LONGS]); - static cpumask_t backtrace_mask = CPU_MASK_NONE; /* nmi_active: @@ -63,191 +46,11 @@ int panic_on_timeout; unsigned int nmi_watchdog = NMI_DEFAULT; static unsigned int nmi_hz = HZ; -struct nmi_watchdog_ctlblk { - int enabled; - u64 check_bit; - unsigned int cccr_msr; - unsigned int perfctr_msr; /* the MSR to reset in NMI handler */ - unsigned int evntsel_msr; /* the MSR to select the events to handle */ -}; -static DEFINE_PER_CPU(struct nmi_watchdog_ctlblk, nmi_watchdog_ctlblk); +static DEFINE_PER_CPU(short, wd_enabled); /* local prototypes */ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu); -/* converts an msr to an appropriate reservation bit */ -static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr) -{ - /* returns the bit offset of the performance counter register */ - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - return (msr - MSR_K7_PERFCTR0); - case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) - return (msr - MSR_ARCH_PERFMON_PERFCTR0); - else - return (msr - MSR_P4_BPU_PERFCTR0); - } - return 0; -} - -/* converts an msr to an appropriate reservation bit */ -static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr) -{ - /* returns the bit offset of the event selection register */ - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - return (msr - MSR_K7_EVNTSEL0); - case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) - return (msr - MSR_ARCH_PERFMON_EVENTSEL0); - else - return (msr - MSR_P4_BSU_ESCR0); - } - return 0; -} - -/* checks for a bit availability (hack for oprofile) */ -int avail_to_resrv_perfctr_nmi_bit(unsigned int counter) -{ - int cpu; - BUG_ON(counter > NMI_MAX_COUNTER_BITS); - for_each_possible_cpu (cpu) { - if (test_bit(counter, &per_cpu(perfctr_nmi_owner, cpu))) - return 0; - } - return 1; -} - -/* checks the an msr for availability */ -int avail_to_resrv_perfctr_nmi(unsigned int msr) -{ - unsigned int counter; - int cpu; - - counter = nmi_perfctr_msr_to_bit(msr); - BUG_ON(counter > NMI_MAX_COUNTER_BITS); - - for_each_possible_cpu (cpu) { - if (test_bit(counter, &per_cpu(perfctr_nmi_owner, cpu))) - return 0; - } - return 1; -} - -static int __reserve_perfctr_nmi(int cpu, unsigned int msr) -{ - unsigned int counter; - if (cpu < 0) - cpu = smp_processor_id(); - - counter = nmi_perfctr_msr_to_bit(msr); - BUG_ON(counter > NMI_MAX_COUNTER_BITS); - - if (!test_and_set_bit(counter, &per_cpu(perfctr_nmi_owner, cpu))) - return 1; - return 0; -} - -static void __release_perfctr_nmi(int cpu, unsigned int msr) -{ - unsigned int counter; - if (cpu < 0) - cpu = smp_processor_id(); - - counter = nmi_perfctr_msr_to_bit(msr); - BUG_ON(counter > NMI_MAX_COUNTER_BITS); - - clear_bit(counter, &per_cpu(perfctr_nmi_owner, cpu)); -} - -int reserve_perfctr_nmi(unsigned int msr) -{ - int cpu, i; - for_each_possible_cpu (cpu) { - if (!__reserve_perfctr_nmi(cpu, msr)) { - for_each_possible_cpu (i) { - if (i >= cpu) - break; - __release_perfctr_nmi(i, msr); - } - return 0; - } - } - return 1; -} - -void release_perfctr_nmi(unsigned int msr) -{ - int cpu; - for_each_possible_cpu (cpu) - __release_perfctr_nmi(cpu, msr); -} - -int __reserve_evntsel_nmi(int cpu, unsigned int msr) -{ - unsigned int counter; - if (cpu < 0) - cpu = smp_processor_id(); - - counter = nmi_evntsel_msr_to_bit(msr); - BUG_ON(counter > NMI_MAX_COUNTER_BITS); - - if (!test_and_set_bit(counter, &per_cpu(evntsel_nmi_owner, cpu)[0])) - return 1; - return 0; -} - -static void __release_evntsel_nmi(int cpu, unsigned int msr) -{ - unsigned int counter; - if (cpu < 0) - cpu = smp_processor_id(); - - counter = nmi_evntsel_msr_to_bit(msr); - BUG_ON(counter > NMI_MAX_COUNTER_BITS); - - clear_bit(counter, &per_cpu(evntsel_nmi_owner, cpu)[0]); -} - -int reserve_evntsel_nmi(unsigned int msr) -{ - int cpu, i; - for_each_possible_cpu (cpu) { - if (!__reserve_evntsel_nmi(cpu, msr)) { - for_each_possible_cpu (i) { - if (i >= cpu) - break; - __release_evntsel_nmi(i, msr); - } - return 0; - } - } - return 1; -} - -void release_evntsel_nmi(unsigned int msr) -{ - int cpu; - for_each_possible_cpu (cpu) { - __release_evntsel_nmi(cpu, msr); - } -} - -static __cpuinit inline int nmi_known_cpu(void) -{ - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - return boot_cpu_data.x86 == 15 || boot_cpu_data.x86 == 16; - case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) - return 1; - else - return (boot_cpu_data.x86 == 15); - } - return 0; -} - /* Run after command line and cpu_init init, but before all other checks */ void nmi_watchdog_default(void) { @@ -277,23 +80,6 @@ static __init void nmi_cpu_busy(void *data) } #endif -static unsigned int adjust_for_32bit_ctr(unsigned int hz) -{ - unsigned int retval = hz; - - /* - * On Intel CPUs with ARCH_PERFMON only 32 bits in the counter - * are writable, with higher bits sign extending from bit 31. - * So, we can only program the counter with 31 bit values and - * 32nd bit should be 1, for 33.. to be 1. - * Find the appropriate nmi_hz - */ - if ((((u64)cpu_khz * 1000) / retval) > 0x7fffffffULL) { - retval = ((u64)cpu_khz * 1000) / 0x7fffffffUL + 1; - } - return retval; -} - int __init check_nmi_watchdog (void) { int *counts; @@ -322,14 +108,14 @@ int __init check_nmi_watchdog (void) mdelay((20*1000)/nmi_hz); // wait 20 ticks for_each_online_cpu(cpu) { - if (!per_cpu(nmi_watchdog_ctlblk, cpu).enabled) + if (!per_cpu(wd_enabled, cpu)) continue; if (cpu_pda(cpu)->__nmi_count - counts[cpu] <= 5) { printk("CPU#%d: NMI appears to be stuck (%d->%d)!\n", cpu, counts[cpu], cpu_pda(cpu)->__nmi_count); - per_cpu(nmi_watchdog_ctlblk, cpu).enabled = 0; + per_cpu(wd_enabled, cpu) = 0; atomic_dec(&nmi_active); } } @@ -344,13 +130,8 @@ int __init check_nmi_watchdog (void) /* now that we know it works we can reduce NMI frequency to something more reasonable; makes a difference in some configs */ - if (nmi_watchdog == NMI_LOCAL_APIC) { - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - nmi_hz = 1; - if (wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0) - nmi_hz = adjust_for_32bit_ctr(nmi_hz); - } + if (nmi_watchdog == NMI_LOCAL_APIC) + nmi_hz = lapic_adjust_nmi_hz(1); kfree(counts); return 0; @@ -379,57 +160,6 @@ int __init setup_nmi_watchdog(char *str) __setup("nmi_watchdog=", setup_nmi_watchdog); -static void disable_lapic_nmi_watchdog(void) -{ - BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); - - if (atomic_read(&nmi_active) <= 0) - return; - - on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); - - BUG_ON(atomic_read(&nmi_active) != 0); -} - -static void enable_lapic_nmi_watchdog(void) -{ - BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); - - /* are we already enabled */ - if (atomic_read(&nmi_active) != 0) - return; - - /* are we lapic aware */ - if (nmi_known_cpu() <= 0) - return; - - on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); - touch_nmi_watchdog(); -} - -void disable_timer_nmi_watchdog(void) -{ - BUG_ON(nmi_watchdog != NMI_IO_APIC); - - if (atomic_read(&nmi_active) <= 0) - return; - - disable_irq(0); - on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); - - BUG_ON(atomic_read(&nmi_active) != 0); -} - -void enable_timer_nmi_watchdog(void) -{ - BUG_ON(nmi_watchdog != NMI_IO_APIC); - - if (atomic_read(&nmi_active) == 0) { - touch_nmi_watchdog(); - on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); - enable_irq(0); - } -} static void __acpi_nmi_disable(void *__unused) { @@ -515,275 +245,9 @@ late_initcall(init_lapic_nmi_sysfs); #endif /* CONFIG_PM */ -/* - * Activate the NMI watchdog via the local APIC. - * Original code written by Keith Owens. - */ - -/* Note that these events don't tick when the CPU idles. This means - the frequency varies with CPU load. */ - -#define K7_EVNTSEL_ENABLE (1 << 22) -#define K7_EVNTSEL_INT (1 << 20) -#define K7_EVNTSEL_OS (1 << 17) -#define K7_EVNTSEL_USR (1 << 16) -#define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING 0x76 -#define K7_NMI_EVENT K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING - -static int setup_k7_watchdog(void) -{ - unsigned int perfctr_msr, evntsel_msr; - unsigned int evntsel; - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - perfctr_msr = MSR_K7_PERFCTR0; - evntsel_msr = MSR_K7_EVNTSEL0; - if (!__reserve_perfctr_nmi(-1, perfctr_msr)) - goto fail; - - if (!__reserve_evntsel_nmi(-1, evntsel_msr)) - goto fail1; - - /* Simulator may not support it */ - if (checking_wrmsrl(evntsel_msr, 0UL)) - goto fail2; - wrmsrl(perfctr_msr, 0UL); - - evntsel = K7_EVNTSEL_INT - | K7_EVNTSEL_OS - | K7_EVNTSEL_USR - | K7_NMI_EVENT; - - /* setup the timer */ - wrmsr(evntsel_msr, evntsel, 0); - wrmsrl(perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); - apic_write(APIC_LVTPC, APIC_DM_NMI); - evntsel |= K7_EVNTSEL_ENABLE; - wrmsr(evntsel_msr, evntsel, 0); - - wd->perfctr_msr = perfctr_msr; - wd->evntsel_msr = evntsel_msr; - wd->cccr_msr = 0; //unused - wd->check_bit = 1ULL<<63; - return 1; -fail2: - __release_evntsel_nmi(-1, evntsel_msr); -fail1: - __release_perfctr_nmi(-1, perfctr_msr); -fail: - return 0; -} - -static void stop_k7_watchdog(void) -{ - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - wrmsr(wd->evntsel_msr, 0, 0); - - __release_evntsel_nmi(-1, wd->evntsel_msr); - __release_perfctr_nmi(-1, wd->perfctr_msr); -} - -/* Note that these events don't tick when the CPU idles. This means - the frequency varies with CPU load. */ - -#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7) -#define P4_ESCR_EVENT_SELECT(N) ((N)<<25) -#define P4_ESCR_OS (1<<3) -#define P4_ESCR_USR (1<<2) -#define P4_CCCR_OVF_PMI0 (1<<26) -#define P4_CCCR_OVF_PMI1 (1<<27) -#define P4_CCCR_THRESHOLD(N) ((N)<<20) -#define P4_CCCR_COMPLEMENT (1<<19) -#define P4_CCCR_COMPARE (1<<18) -#define P4_CCCR_REQUIRED (3<<16) -#define P4_CCCR_ESCR_SELECT(N) ((N)<<13) -#define P4_CCCR_ENABLE (1<<12) -#define P4_CCCR_OVF (1<<31) -/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter - CRU_ESCR0 (with any non-null event selector) through a complemented - max threshold. [IA32-Vol3, Section 14.9.9] */ - -static int setup_p4_watchdog(void) -{ - unsigned int perfctr_msr, evntsel_msr, cccr_msr; - unsigned int evntsel, cccr_val; - unsigned int misc_enable, dummy; - unsigned int ht_num; - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - rdmsr(MSR_IA32_MISC_ENABLE, misc_enable, dummy); - if (!(misc_enable & MSR_P4_MISC_ENABLE_PERF_AVAIL)) - return 0; - -#ifdef CONFIG_SMP - /* detect which hyperthread we are on */ - if (smp_num_siblings == 2) { - unsigned int ebx, apicid; - - ebx = cpuid_ebx(1); - apicid = (ebx >> 24) & 0xff; - ht_num = apicid & 1; - } else -#endif - ht_num = 0; - - /* performance counters are shared resources - * assign each hyperthread its own set - * (re-use the ESCR0 register, seems safe - * and keeps the cccr_val the same) - */ - if (!ht_num) { - /* logical cpu 0 */ - perfctr_msr = MSR_P4_IQ_PERFCTR0; - evntsel_msr = MSR_P4_CRU_ESCR0; - cccr_msr = MSR_P4_IQ_CCCR0; - cccr_val = P4_CCCR_OVF_PMI0 | P4_CCCR_ESCR_SELECT(4); - } else { - /* logical cpu 1 */ - perfctr_msr = MSR_P4_IQ_PERFCTR1; - evntsel_msr = MSR_P4_CRU_ESCR0; - cccr_msr = MSR_P4_IQ_CCCR1; - cccr_val = P4_CCCR_OVF_PMI1 | P4_CCCR_ESCR_SELECT(4); - } - - if (!__reserve_perfctr_nmi(-1, perfctr_msr)) - goto fail; - - if (!__reserve_evntsel_nmi(-1, evntsel_msr)) - goto fail1; - - evntsel = P4_ESCR_EVENT_SELECT(0x3F) - | P4_ESCR_OS - | P4_ESCR_USR; - - cccr_val |= P4_CCCR_THRESHOLD(15) - | P4_CCCR_COMPLEMENT - | P4_CCCR_COMPARE - | P4_CCCR_REQUIRED; - - wrmsr(evntsel_msr, evntsel, 0); - wrmsr(cccr_msr, cccr_val, 0); - wrmsrl(perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); - apic_write(APIC_LVTPC, APIC_DM_NMI); - cccr_val |= P4_CCCR_ENABLE; - wrmsr(cccr_msr, cccr_val, 0); - - wd->perfctr_msr = perfctr_msr; - wd->evntsel_msr = evntsel_msr; - wd->cccr_msr = cccr_msr; - wd->check_bit = 1ULL<<39; - return 1; -fail1: - __release_perfctr_nmi(-1, perfctr_msr); -fail: - return 0; -} - -static void stop_p4_watchdog(void) -{ - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - wrmsr(wd->cccr_msr, 0, 0); - wrmsr(wd->evntsel_msr, 0, 0); - - __release_evntsel_nmi(-1, wd->evntsel_msr); - __release_perfctr_nmi(-1, wd->perfctr_msr); -} - -#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL -#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK - -static int setup_intel_arch_watchdog(void) -{ - unsigned int ebx; - union cpuid10_eax eax; - unsigned int unused; - unsigned int perfctr_msr, evntsel_msr; - unsigned int evntsel; - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - /* - * Check whether the Architectural PerfMon supports - * Unhalted Core Cycles Event or not. - * NOTE: Corresponding bit = 0 in ebx indicates event present. - */ - cpuid(10, &(eax.full), &ebx, &unused, &unused); - if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) || - (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) - goto fail; - - perfctr_msr = MSR_ARCH_PERFMON_PERFCTR0; - evntsel_msr = MSR_ARCH_PERFMON_EVENTSEL0; - - if (!__reserve_perfctr_nmi(-1, perfctr_msr)) - goto fail; - - if (!__reserve_evntsel_nmi(-1, evntsel_msr)) - goto fail1; - - wrmsrl(perfctr_msr, 0UL); - - evntsel = ARCH_PERFMON_EVENTSEL_INT - | ARCH_PERFMON_EVENTSEL_OS - | ARCH_PERFMON_EVENTSEL_USR - | ARCH_PERFMON_NMI_EVENT_SEL - | ARCH_PERFMON_NMI_EVENT_UMASK; - - /* setup the timer */ - wrmsr(evntsel_msr, evntsel, 0); - - nmi_hz = adjust_for_32bit_ctr(nmi_hz); - wrmsr(perfctr_msr, (u32)(-((u64)cpu_khz * 1000 / nmi_hz)), 0); - - apic_write(APIC_LVTPC, APIC_DM_NMI); - evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE; - wrmsr(evntsel_msr, evntsel, 0); - - wd->perfctr_msr = perfctr_msr; - wd->evntsel_msr = evntsel_msr; - wd->cccr_msr = 0; //unused - wd->check_bit = 1ULL << (eax.split.bit_width - 1); - return 1; -fail1: - __release_perfctr_nmi(-1, perfctr_msr); -fail: - return 0; -} - -static void stop_intel_arch_watchdog(void) -{ - unsigned int ebx; - union cpuid10_eax eax; - unsigned int unused; - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - /* - * Check whether the Architectural PerfMon supports - * Unhalted Core Cycles Event or not. - * NOTE: Corresponding bit = 0 in ebx indicates event present. - */ - cpuid(10, &(eax.full), &ebx, &unused, &unused); - if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) || - (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) - return; - - wrmsr(wd->evntsel_msr, 0, 0); - - __release_evntsel_nmi(-1, wd->evntsel_msr); - __release_perfctr_nmi(-1, wd->perfctr_msr); -} - void setup_apic_nmi_watchdog(void *unused) { - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - - /* only support LOCAL and IO APICs for now */ - if ((nmi_watchdog != NMI_LOCAL_APIC) && - (nmi_watchdog != NMI_IO_APIC)) - return; - - if (wd->enabled == 1) + if (__get_cpu_var(wd_enabled) == 1) return; /* cheap hack to support suspend/resume */ @@ -791,62 +255,31 @@ void setup_apic_nmi_watchdog(void *unused) if ((smp_processor_id() != 0) && (atomic_read(&nmi_active) <= 0)) return; - if (nmi_watchdog == NMI_LOCAL_APIC) { - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - if (strstr(boot_cpu_data.x86_model_id, "Screwdriver")) - return; - if (!setup_k7_watchdog()) - return; - break; - case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { - if (!setup_intel_arch_watchdog()) - return; - break; - } - if (!setup_p4_watchdog()) - return; - break; - default: + switch (nmi_watchdog) { + case NMI_LOCAL_APIC: + __get_cpu_var(wd_enabled) = 1; + if (lapic_watchdog_init(nmi_hz) < 0) { + __get_cpu_var(wd_enabled) = 0; return; } + /* FALL THROUGH */ + case NMI_IO_APIC: + __get_cpu_var(wd_enabled) = 1; + atomic_inc(&nmi_active); } - wd->enabled = 1; - atomic_inc(&nmi_active); } void stop_apic_nmi_watchdog(void *unused) { - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - /* only support LOCAL and IO APICs for now */ if ((nmi_watchdog != NMI_LOCAL_APIC) && (nmi_watchdog != NMI_IO_APIC)) return; - - if (wd->enabled == 0) + if (__get_cpu_var(wd_enabled) == 0) return; - - if (nmi_watchdog == NMI_LOCAL_APIC) { - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - if (strstr(boot_cpu_data.x86_model_id, "Screwdriver")) - return; - stop_k7_watchdog(); - break; - case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { - stop_intel_arch_watchdog(); - break; - } - stop_p4_watchdog(); - break; - default: - return; - } - } - wd->enabled = 0; + if (nmi_watchdog == NMI_LOCAL_APIC) + lapic_watchdog_stop(); + __get_cpu_var(wd_enabled) = 0; atomic_dec(&nmi_active); } @@ -885,9 +318,7 @@ int __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) int sum; int touched = 0; int cpu = smp_processor_id(); - struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - u64 dummy; - int rc=0; + int rc = 0; /* check for other users first */ if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) @@ -934,55 +365,20 @@ int __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) } /* see if the nmi watchdog went off */ - if (wd->enabled) { - if (nmi_watchdog == NMI_LOCAL_APIC) { - rdmsrl(wd->perfctr_msr, dummy); - if (dummy & wd->check_bit){ - /* this wasn't a watchdog timer interrupt */ - goto done; - } - - /* only Intel uses the cccr msr */ - if (wd->cccr_msr != 0) { - /* - * P4 quirks: - * - An overflown perfctr will assert its interrupt - * until the OVF flag in its CCCR is cleared. - * - LVTPC is masked on interrupt and must be - * unmasked by the LVTPC handler. - */ - rdmsrl(wd->cccr_msr, dummy); - dummy &= ~P4_CCCR_OVF; - wrmsrl(wd->cccr_msr, dummy); - apic_write(APIC_LVTPC, APIC_DM_NMI); - /* start the cycle over again */ - wrmsrl(wd->perfctr_msr, - -((u64)cpu_khz * 1000 / nmi_hz)); - } else if (wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0) { - /* - * ArchPerfom/Core Duo needs to re-unmask - * the apic vector - */ - apic_write(APIC_LVTPC, APIC_DM_NMI); - /* ARCH_PERFMON has 32 bit counter writes */ - wrmsr(wd->perfctr_msr, - (u32)(-((u64)cpu_khz * 1000 / nmi_hz)), 0); - } else { - /* start the cycle over again */ - wrmsrl(wd->perfctr_msr, - -((u64)cpu_khz * 1000 / nmi_hz)); - } - rc = 1; - } else if (nmi_watchdog == NMI_IO_APIC) { - /* don't know how to accurately check for this. - * just assume it was a watchdog timer interrupt - * This matches the old behaviour. - */ - rc = 1; - } else - printk(KERN_WARNING "Unknown enabled NMI hardware?!\n"); + if (!__get_cpu_var(wd_enabled)) + return rc; + switch (nmi_watchdog) { + case NMI_LOCAL_APIC: + rc |= lapic_wd_event(nmi_hz); + break; + case NMI_IO_APIC: + /* don't know how to accurately check for this. + * just assume it was a watchdog timer interrupt + * This matches the old behaviour. + */ + rc = 1; + break; } -done: return rc; } @@ -1067,12 +463,4 @@ void __trigger_all_cpu_backtrace(void) EXPORT_SYMBOL(nmi_active); EXPORT_SYMBOL(nmi_watchdog); -EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi); -EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit); -EXPORT_SYMBOL(reserve_perfctr_nmi); -EXPORT_SYMBOL(release_perfctr_nmi); -EXPORT_SYMBOL(reserve_evntsel_nmi); -EXPORT_SYMBOL(release_evntsel_nmi); -EXPORT_SYMBOL(disable_timer_nmi_watchdog); -EXPORT_SYMBOL(enable_timer_nmi_watchdog); EXPORT_SYMBOL(touch_nmi_watchdog); diff --git a/arch/x86_64/kernel/pci-calgary.c b/arch/x86_64/kernel/pci-calgary.c index 04480c3..5bd20b5 100644 --- a/arch/x86_64/kernel/pci-calgary.c +++ b/arch/x86_64/kernel/pci-calgary.c @@ -507,7 +507,7 @@ error: return ret; } -static struct dma_mapping_ops calgary_dma_ops = { +static const struct dma_mapping_ops calgary_dma_ops = { .alloc_coherent = calgary_alloc_coherent, .map_single = calgary_map_single, .unmap_single = calgary_unmap_single, diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c index 0bae862..0a762e1 100644 --- a/arch/x86_64/kernel/pci-gart.c +++ b/arch/x86_64/kernel/pci-gart.c @@ -556,7 +556,7 @@ static __init int init_k8_gatt(struct agp_kern_info *info) extern int agp_amd64_init(void); -static struct dma_mapping_ops gart_dma_ops = { +static const struct dma_mapping_ops gart_dma_ops = { .mapping_error = NULL, .map_single = gart_map_single, .map_simple = gart_map_simple, diff --git a/arch/x86_64/kernel/pci-nommu.c b/arch/x86_64/kernel/pci-nommu.c index df09ab0..6dade0c 100644 --- a/arch/x86_64/kernel/pci-nommu.c +++ b/arch/x86_64/kernel/pci-nommu.c @@ -79,7 +79,7 @@ void nommu_unmap_sg(struct device *dev, struct scatterlist *sg, { } -struct dma_mapping_ops nommu_dma_ops = { +const struct dma_mapping_ops nommu_dma_ops = { .map_single = nommu_map_single, .unmap_single = nommu_unmap_single, .map_sg = nommu_map_sg, diff --git a/arch/x86_64/kernel/pci-swiotlb.c b/arch/x86_64/kernel/pci-swiotlb.c index eb18be5..4b4569a 100644 --- a/arch/x86_64/kernel/pci-swiotlb.c +++ b/arch/x86_64/kernel/pci-swiotlb.c @@ -12,7 +12,7 @@ int swiotlb __read_mostly; EXPORT_SYMBOL(swiotlb); -struct dma_mapping_ops swiotlb_dma_ops = { +const struct dma_mapping_ops swiotlb_dma_ops = { .mapping_error = swiotlb_dma_mapping_error, .alloc_coherent = swiotlb_alloc_coherent, .free_coherent = swiotlb_free_coherent, diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c index d8d5ccc..4f21765 100644 --- a/arch/x86_64/kernel/process.c +++ b/arch/x86_64/kernel/process.c @@ -288,16 +288,18 @@ void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c) static int __init idle_setup (char *str) { - if (!strncmp(str, "poll", 4)) { + if (!strcmp(str, "poll")) { printk("using polling idle threads.\n"); pm_idle = poll_idle; - } + } else if (!strcmp(str, "mwait")) + force_mwait = 1; + else + return -1; boot_option_idle_override = 1; - return 1; + return 0; } - -__setup("idle=", idle_setup); +early_param("idle", idle_setup); /* Prints also some state that isn't saved in the pt_regs */ void __show_regs(struct pt_regs * regs) diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index 3d98b69..db51577 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -79,6 +79,8 @@ int bootloader_type; unsigned long saved_video_mode; +int force_mwait __cpuinitdata; + /* * Early DMI memory */ @@ -205,10 +207,10 @@ static void discover_ebda(void) * there is a real-mode segmented pointer pointing to the * 4K EBDA area at 0x40E */ - ebda_addr = *(unsigned short *)EBDA_ADDR_POINTER; + ebda_addr = *(unsigned short *)__va(EBDA_ADDR_POINTER); ebda_addr <<= 4; - ebda_size = *(unsigned short *)(unsigned long)ebda_addr; + ebda_size = *(unsigned short *)__va(ebda_addr); /* Round EBDA up to pages */ if (ebda_size == 0) @@ -274,8 +276,6 @@ void __init setup_arch(char **cmdline_p) dmi_scan_machine(); - zap_low_mappings(0); - #ifdef CONFIG_ACPI /* * Initialize the ACPI boot-time table parser (gets the RSDP and SDT). @@ -329,15 +329,8 @@ void __init setup_arch(char **cmdline_p) #endif #ifdef CONFIG_SMP - /* - * But first pinch a few for the stack/trampoline stuff - * FIXME: Don't need the extra page at 4K, but need to fix - * trampoline before removing it. (see the GDT stuff) - */ - reserve_bootmem_generic(PAGE_SIZE, PAGE_SIZE); - /* Reserve SMP trampoline */ - reserve_bootmem_generic(SMP_TRAMPOLINE_BASE, PAGE_SIZE); + reserve_bootmem_generic(SMP_TRAMPOLINE_BASE, 2*PAGE_SIZE); #endif #ifdef CONFIG_ACPI_SLEEP @@ -612,6 +605,10 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) /* RDTSC can be speculated around */ clear_bit(X86_FEATURE_SYNC_RDTSC, &c->x86_capability); + + /* Family 10 doesn't support C states in MWAIT so don't use it */ + if (c->x86 == 0x10 && !force_mwait) + clear_bit(X86_FEATURE_MWAIT, &c->x86_capability); } static void __cpuinit detect_ht(struct cpuinfo_x86 *c) @@ -987,9 +984,8 @@ static int show_cpuinfo(struct seq_file *m, void *v) "stc", "100mhzsteps", "hwpstate", - NULL, /* tsc invariant mapped to constant_tsc */ - NULL, - /* nothing */ /* constant_tsc - moved to flags */ + "", /* tsc invariant mapped to constant_tsc */ + /* nothing */ }; diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c index 6a70b55..64379a8 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86_64/kernel/setup64.c @@ -103,9 +103,9 @@ void __init setup_per_cpu_areas(void) if (!NODE_DATA(cpu_to_node(i))) { printk("cpu with no node %d, num_online_nodes %d\n", i, num_online_nodes()); - ptr = alloc_bootmem(size); + ptr = alloc_bootmem_pages(size); } else { - ptr = alloc_bootmem_node(NODE_DATA(cpu_to_node(i)), size); + ptr = alloc_bootmem_pages_node(NODE_DATA(cpu_to_node(i)), size); } if (!ptr) panic("Cannot allocate cpu data for CPU %d\n", i); @@ -201,7 +201,6 @@ void __cpuinit cpu_init (void) /* CPU 0 is initialised in head64.c */ if (cpu != 0) { pda_init(cpu); - zap_low_mappings(cpu); } else estacks = boot_exception_stacks; diff --git a/arch/x86_64/kernel/signal.c b/arch/x86_64/kernel/signal.c index 49ec324..c819625 100644 --- a/arch/x86_64/kernel/signal.c +++ b/arch/x86_64/kernel/signal.c @@ -141,7 +141,7 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs) goto badframe; #ifdef DEBUG_SIG - printk("%d sigreturn rip:%lx rsp:%lx frame:%p rax:%lx\n",current->pid,regs.rip,regs.rsp,frame,eax); + printk("%d sigreturn rip:%lx rsp:%lx frame:%p rax:%lx\n",current->pid,regs->rip,regs->rsp,frame,eax); #endif if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->rsp) == -EFAULT) @@ -301,7 +301,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, if (test_thread_flag(TIF_SINGLESTEP)) ptrace_notify(SIGTRAP); #ifdef DEBUG_SIG - printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n", + printk("SIG deliver (%s:%d): sp=%p pc=%lx ra=%p\n", current->comm, current->pid, frame, regs->rip, frame->pretcode); #endif @@ -463,7 +463,7 @@ void do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags) { #ifdef DEBUG_SIG - printk("do_notify_resume flags:%x rip:%lx rsp:%lx caller:%lx pending:%lx\n", + printk("do_notify_resume flags:%x rip:%lx rsp:%lx caller:%p pending:%x\n", thread_info_flags, regs->rip, regs->rsp, __builtin_return_address(0),signal_pending(current)); #endif diff --git a/arch/x86_64/kernel/smp.c b/arch/x86_64/kernel/smp.c index af1ec4d..bd1d123 100644 --- a/arch/x86_64/kernel/smp.c +++ b/arch/x86_64/kernel/smp.c @@ -452,42 +452,34 @@ int smp_call_function (void (*func) (void *info), void *info, int nonatomic, } EXPORT_SYMBOL(smp_call_function); -void smp_stop_cpu(void) +static void stop_this_cpu(void *dummy) { - unsigned long flags; + local_irq_disable(); /* * Remove this CPU: */ cpu_clear(smp_processor_id(), cpu_online_map); - local_irq_save(flags); disable_local_APIC(); - local_irq_restore(flags); -} - -static void smp_really_stop_cpu(void *dummy) -{ - smp_stop_cpu(); for (;;) halt(); } void smp_send_stop(void) { - int nolock = 0; + int nolock; + unsigned long flags; + if (reboot_force) return; + /* Don't deadlock on the call lock in panic */ - if (!spin_trylock(&call_lock)) { - /* ignore locking because we have panicked anyways */ - nolock = 1; - } - __smp_call_function(smp_really_stop_cpu, NULL, 0, 0); + nolock = !spin_trylock(&call_lock); + local_irq_save(flags); + __smp_call_function(stop_this_cpu, NULL, 0, 0); if (!nolock) spin_unlock(&call_lock); - - local_irq_disable(); disable_local_APIC(); - local_irq_enable(); + local_irq_restore(flags); } /* diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index cd4643a..4d9dacf 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -60,7 +60,6 @@ #include <asm/irq.h> #include <asm/hw_irq.h> #include <asm/numa.h> -#include <asm/genapic.h> /* Number of siblings per CPU package */ int smp_num_siblings = 1; @@ -68,7 +67,6 @@ EXPORT_SYMBOL(smp_num_siblings); /* Last level cache ID of each logical CPU */ u8 cpu_llc_id[NR_CPUS] __cpuinitdata = {[0 ... NR_CPUS-1] = BAD_APICID}; -EXPORT_SYMBOL(cpu_llc_id); /* Bitmask of currently online CPUs */ cpumask_t cpu_online_map __read_mostly; @@ -392,7 +390,8 @@ static void inquire_remote_apic(int apicid) { unsigned i, regs[] = { APIC_ID >> 4, APIC_LVR >> 4, APIC_SPIV >> 4 }; char *names[] = { "ID", "VERSION", "SPIV" }; - int timeout, status; + int timeout; + unsigned int status; printk(KERN_INFO "Inquiring remote APIC #%d...\n", apicid); @@ -402,7 +401,9 @@ static void inquire_remote_apic(int apicid) /* * Wait for idle. */ - apic_wait_icr_idle(); + status = safe_apic_wait_icr_idle(); + if (status) + printk("a previous APIC delivery may have failed\n"); apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(apicid)); apic_write(APIC_ICR, APIC_DM_REMRD | regs[i]); @@ -430,8 +431,8 @@ static void inquire_remote_apic(int apicid) */ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int start_rip) { - unsigned long send_status = 0, accept_status = 0; - int maxlvt, timeout, num_starts, j; + unsigned long send_status, accept_status = 0; + int maxlvt, num_starts, j; Dprintk("Asserting INIT.\n"); @@ -447,12 +448,7 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta | APIC_DM_INIT); Dprintk("Waiting for send to finish...\n"); - timeout = 0; - do { - Dprintk("+"); - udelay(100); - send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY; - } while (send_status && (timeout++ < 1000)); + send_status = safe_apic_wait_icr_idle(); mdelay(10); @@ -465,12 +461,7 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta apic_write(APIC_ICR, APIC_INT_LEVELTRIG | APIC_DM_INIT); Dprintk("Waiting for send to finish...\n"); - timeout = 0; - do { - Dprintk("+"); - udelay(100); - send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY; - } while (send_status && (timeout++ < 1000)); + send_status = safe_apic_wait_icr_idle(); mb(); atomic_set(&init_deasserted, 1); @@ -509,12 +500,7 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta Dprintk("Startup point 1.\n"); Dprintk("Waiting for send to finish...\n"); - timeout = 0; - do { - Dprintk("+"); - udelay(100); - send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY; - } while (send_status && (timeout++ < 1000)); + send_status = safe_apic_wait_icr_idle(); /* * Give the other CPU some time to accept the IPI. @@ -945,6 +931,12 @@ int __cpuinit __cpu_up(unsigned int cpu) return -ENOSYS; } + /* + * Save current MTRR state in case it was changed since early boot + * (e.g. by the ACPI SMI) to initialize new CPUs with MTRRs in sync: + */ + mtrr_save_state(); + per_cpu(cpu_state, cpu) = CPU_UP_PREPARE; /* Boot it! */ err = do_boot_cpu(cpu, apicid); @@ -965,13 +957,6 @@ int __cpuinit __cpu_up(unsigned int cpu) while (!cpu_isset(cpu, cpu_online_map)) cpu_relax(); - - if (num_online_cpus() > 8 && genapic == &apic_flat) { - printk(KERN_WARNING - "flat APIC routing can't be used with > 8 cpus\n"); - BUG(); - } - err = 0; return err; diff --git a/arch/x86_64/kernel/suspend.c b/arch/x86_64/kernel/suspend.c index 91f7e67..6a5a98f 100644 --- a/arch/x86_64/kernel/suspend.c +++ b/arch/x86_64/kernel/suspend.c @@ -12,6 +12,10 @@ #include <asm/proto.h> #include <asm/page.h> #include <asm/pgtable.h> +#include <asm/mtrr.h> + +/* References to section boundaries */ +extern const void __nosave_begin, __nosave_end; struct saved_context saved_context; @@ -33,7 +37,6 @@ void __save_processor_state(struct saved_context *ctxt) asm volatile ("str %0" : "=m" (ctxt->tr)); /* XMM0..XMM15 should be handled by kernel_fpu_begin(). */ - /* EFER should be constant for kernel version, no need to handle it. */ /* * segment registers */ @@ -46,10 +49,12 @@ void __save_processor_state(struct saved_context *ctxt) rdmsrl(MSR_FS_BASE, ctxt->fs_base); rdmsrl(MSR_GS_BASE, ctxt->gs_base); rdmsrl(MSR_KERNEL_GS_BASE, ctxt->gs_kernel_base); + mtrr_save_fixed_ranges(NULL); /* * control registers */ + rdmsrl(MSR_EFER, ctxt->efer); asm volatile ("movq %%cr0, %0" : "=r" (ctxt->cr0)); asm volatile ("movq %%cr2, %0" : "=r" (ctxt->cr2)); asm volatile ("movq %%cr3, %0" : "=r" (ctxt->cr3)); @@ -75,6 +80,7 @@ void __restore_processor_state(struct saved_context *ctxt) /* * control registers */ + wrmsrl(MSR_EFER, ctxt->efer); asm volatile ("movq %0, %%cr8" :: "r" (ctxt->cr8)); asm volatile ("movq %0, %%cr4" :: "r" (ctxt->cr4)); asm volatile ("movq %0, %%cr3" :: "r" (ctxt->cr3)); @@ -219,4 +225,15 @@ int swsusp_arch_resume(void) restore_image(); return 0; } + +/* + * pfn_is_nosave - check if given pfn is in the 'nosave' section + */ + +int pfn_is_nosave(unsigned long pfn) +{ + unsigned long nosave_begin_pfn = __pa_symbol(&__nosave_begin) >> PAGE_SHIFT; + unsigned long nosave_end_pfn = PAGE_ALIGN(__pa_symbol(&__nosave_end)) >> PAGE_SHIFT; + return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn); +} #endif /* CONFIG_SOFTWARE_SUSPEND */ diff --git a/arch/x86_64/kernel/suspend_asm.S b/arch/x86_64/kernel/suspend_asm.S index bfbe007..16d183f 100644 --- a/arch/x86_64/kernel/suspend_asm.S +++ b/arch/x86_64/kernel/suspend_asm.S @@ -71,9 +71,10 @@ loop: jmp loop done: /* go back to the original page tables */ - leaq init_level4_pgt(%rip), %rax - subq $__START_KERNEL_map, %rax - movq %rax, %cr3 + movq $(init_level4_pgt - __START_KERNEL_map), %rax + addq phys_base(%rip), %rax + movq %rax, %cr3 + /* Flush TLB, including "global" things (vmalloc) */ movq mmu_cr4_features(%rip), %rax movq %rax, %rdx diff --git a/arch/x86_64/kernel/sys_x86_64.c b/arch/x86_64/kernel/sys_x86_64.c index 76bf7c2..f891931 100644 --- a/arch/x86_64/kernel/sys_x86_64.c +++ b/arch/x86_64/kernel/sys_x86_64.c @@ -93,6 +93,9 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long start_addr; unsigned long begin, end; + if (flags & MAP_FIXED) + return addr; + find_start_end(flags, &begin, &end); if (len > end) diff --git a/arch/x86_64/kernel/syscall.c b/arch/x86_64/kernel/syscall.c index 213fd6a..63d592c 100644 --- a/arch/x86_64/kernel/syscall.c +++ b/arch/x86_64/kernel/syscall.c @@ -3,6 +3,7 @@ #include <linux/linkage.h> #include <linux/sys.h> #include <linux/cache.h> +#include <asm/asm-offsets.h> #define __NO_STUBS diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c index 75d73a9..0652e17 100644 --- a/arch/x86_64/kernel/time.c +++ b/arch/x86_64/kernel/time.c @@ -39,13 +39,11 @@ #include <asm/proto.h> #include <asm/hpet.h> #include <asm/sections.h> -#include <linux/cpufreq.h> #include <linux/hpet.h> #include <asm/apic.h> #include <asm/hpet.h> - -extern void i8254_timer_resume(void); -extern int using_apic_timer; +#include <asm/mpspec.h> +#include <asm/nmi.h> static char *timename = NULL; @@ -252,6 +250,51 @@ static unsigned long get_cmos_time(void) return mktime(year, mon, day, hour, min, sec); } +/* calibrate_cpu is used on systems with fixed rate TSCs to determine + * processor frequency */ +#define TICK_COUNT 100000000 +static unsigned int __init tsc_calibrate_cpu_khz(void) +{ + int tsc_start, tsc_now; + int i, no_ctr_free; + unsigned long evntsel3 = 0, pmc3 = 0, pmc_now = 0; + unsigned long flags; + + for (i = 0; i < 4; i++) + if (avail_to_resrv_perfctr_nmi_bit(i)) + break; + no_ctr_free = (i == 4); + if (no_ctr_free) { + i = 3; + rdmsrl(MSR_K7_EVNTSEL3, evntsel3); + wrmsrl(MSR_K7_EVNTSEL3, 0); + rdmsrl(MSR_K7_PERFCTR3, pmc3); + } else { + reserve_perfctr_nmi(MSR_K7_PERFCTR0 + i); + reserve_evntsel_nmi(MSR_K7_EVNTSEL0 + i); + } + local_irq_save(flags); + /* start meauring cycles, incrementing from 0 */ + wrmsrl(MSR_K7_PERFCTR0 + i, 0); + wrmsrl(MSR_K7_EVNTSEL0 + i, 1 << 22 | 3 << 16 | 0x76); + rdtscl(tsc_start); + do { + rdmsrl(MSR_K7_PERFCTR0 + i, pmc_now); + tsc_now = get_cycles_sync(); + } while ((tsc_now - tsc_start) < TICK_COUNT); + + local_irq_restore(flags); + if (no_ctr_free) { + wrmsrl(MSR_K7_EVNTSEL3, 0); + wrmsrl(MSR_K7_PERFCTR3, pmc3); + wrmsrl(MSR_K7_EVNTSEL3, evntsel3); + } else { + release_perfctr_nmi(MSR_K7_PERFCTR0 + i); + release_evntsel_nmi(MSR_K7_EVNTSEL0 + i); + } + + return pmc_now * tsc_khz / (tsc_now - tsc_start); +} /* * pit_calibrate_tsc() uses the speaker output (channel 2) of @@ -285,7 +328,7 @@ static unsigned int __init pit_calibrate_tsc(void) #define PIT_MODE 0x43 #define PIT_CH0 0x40 -static void __init __pit_init(int val, u8 mode) +static void __pit_init(int val, u8 mode) { unsigned long flags; @@ -301,12 +344,12 @@ void __init pit_init(void) __pit_init(LATCH, 0x34); /* binary, mode 2, LSB/MSB, ch 0 */ } -void __init pit_stop_interrupt(void) +void pit_stop_interrupt(void) { __pit_init(0, 0x30); /* mode 0 */ } -void __init stop_timer_interrupt(void) +void stop_timer_interrupt(void) { char *name; if (hpet_address) { @@ -339,23 +382,29 @@ void __init time_init(void) if (hpet_use_timer) { /* set tick_nsec to use the proper rate for HPET */ tick_nsec = TICK_NSEC_HPET; - cpu_khz = hpet_calibrate_tsc(); + tsc_khz = hpet_calibrate_tsc(); timename = "HPET"; } else { pit_init(); - cpu_khz = pit_calibrate_tsc(); + tsc_khz = pit_calibrate_tsc(); timename = "PIT"; } + cpu_khz = tsc_khz; + if (cpu_has(&boot_cpu_data, X86_FEATURE_CONSTANT_TSC) && + boot_cpu_data.x86_vendor == X86_VENDOR_AMD && + boot_cpu_data.x86 == 16) + cpu_khz = tsc_calibrate_cpu_khz(); + if (unsynchronized_tsc()) - mark_tsc_unstable(); + mark_tsc_unstable("TSCs unsynchronized"); if (cpu_has(&boot_cpu_data, X86_FEATURE_RDTSCP)) vgetcpu_mode = VGETCPU_RDTSCP; else vgetcpu_mode = VGETCPU_LSL; - set_cyc2ns_scale(cpu_khz); + set_cyc2ns_scale(tsc_khz); printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n", cpu_khz / 1000, cpu_khz % 1000); init_tsc_clocksource(); diff --git a/arch/x86_64/kernel/trampoline.S b/arch/x86_64/kernel/trampoline.S index c79b99a..e7e2764 100644 --- a/arch/x86_64/kernel/trampoline.S +++ b/arch/x86_64/kernel/trampoline.S @@ -3,6 +3,7 @@ * Trampoline.S Derived from Setup.S by Linus Torvalds * * 4 Jan 1997 Michael Chastain: changed to gnu as. + * 15 Sept 2005 Eric Biederman: 64bit PIC support * * Entry: CS:IP point to the start of our code, we are * in real mode with no stack, but the rest of the @@ -17,15 +18,20 @@ * and IP is zero. Thus, data addresses need to be absolute * (no relocation) and are taken with regard to r_base. * + * With the addition of trampoline_level4_pgt this code can + * now enter a 64bit kernel that lives at arbitrary 64bit + * physical addresses. + * * If you work on this file, check the object module with objdump * --full-contents --reloc to make sure there are no relocation - * entries. For the GDT entry we do hand relocation in smpboot.c - * because of 64bit linker limitations. + * entries. */ #include <linux/linkage.h> -#include <asm/segment.h> +#include <asm/pgtable.h> #include <asm/page.h> +#include <asm/msr.h> +#include <asm/segment.h> .data @@ -33,15 +39,33 @@ ENTRY(trampoline_data) r_base = . + cli # We should be safe anyway wbinvd mov %cs, %ax # Code and data in the same place mov %ax, %ds + mov %ax, %es + mov %ax, %ss - cli # We should be safe anyway movl $0xA5A5A5A5, trampoline_data - r_base # write marker for master knows we're running + # Setup stack + movw $(trampoline_stack_end - r_base), %sp + + call verify_cpu # Verify the cpu supports long mode + testl %eax, %eax # Check for return code + jnz no_longmode + + mov %cs, %ax + movzx %ax, %esi # Find the 32bit trampoline location + shll $4, %esi + + # Fixup the vectors + addl %esi, startup_32_vector - r_base + addl %esi, startup_64_vector - r_base + addl %esi, tgdt + 2 - r_base # Fixup the gdt pointer + /* * GDT tables in non default location kernel can be beyond 16MB and * lgdt will not be able to load the address as in real mode default @@ -49,23 +73,94 @@ r_base = . * to 32 bit. */ - lidtl idt_48 - r_base # load idt with 0, 0 - lgdtl gdt_48 - r_base # load gdt with whatever is appropriate + lidtl tidt - r_base # load idt with 0, 0 + lgdtl tgdt - r_base # load gdt with whatever is appropriate xor %ax, %ax inc %ax # protected mode (PE) bit lmsw %ax # into protected mode - # flaush prefetch and jump to startup_32 in arch/x86_64/kernel/head.S - ljmpl $__KERNEL32_CS, $(startup_32-__START_KERNEL_map) + + # flush prefetch and jump to startup_32 + ljmpl *(startup_32_vector - r_base) + + .code32 + .balign 4 +startup_32: + movl $__KERNEL_DS, %eax # Initialize the %ds segment register + movl %eax, %ds + + xorl %eax, %eax + btsl $5, %eax # Enable PAE mode + movl %eax, %cr4 + + # Setup trampoline 4 level pagetables + leal (trampoline_level4_pgt - r_base)(%esi), %eax + movl %eax, %cr3 + + movl $MSR_EFER, %ecx + movl $(1 << _EFER_LME), %eax # Enable Long Mode + xorl %edx, %edx + wrmsr + + xorl %eax, %eax + btsl $31, %eax # Enable paging and in turn activate Long Mode + btsl $0, %eax # Enable protected mode + movl %eax, %cr0 + + /* + * At this point we're in long mode but in 32bit compatibility mode + * with EFER.LME = 1, CS.L = 0, CS.D = 1 (and in turn + * EFER.LMA = 1). Now we want to jump in 64bit mode, to do that we use + * the new gdt/idt that has __KERNEL_CS with CS.L = 1. + */ + ljmp *(startup_64_vector - r_base)(%esi) + + .code64 + .balign 4 +startup_64: + # Now jump into the kernel using virtual addresses + movq $secondary_startup_64, %rax + jmp *%rax + + .code16 +no_longmode: + hlt + jmp no_longmode +#include "verify_cpu.S" # Careful these need to be in the same 64K segment as the above; -idt_48: +tidt: .word 0 # idt limit = 0 .word 0, 0 # idt base = 0L -gdt_48: - .short GDT_ENTRIES*8 - 1 # gdt limit - .long cpu_gdt_table-__START_KERNEL_map + # Duplicate the global descriptor table + # so the kernel can live anywhere + .balign 4 +tgdt: + .short tgdt_end - tgdt # gdt limit + .long tgdt - r_base + .short 0 + .quad 0x00cf9b000000ffff # __KERNEL32_CS + .quad 0x00af9b000000ffff # __KERNEL_CS + .quad 0x00cf93000000ffff # __KERNEL_DS +tgdt_end: + + .balign 4 +startup_32_vector: + .long startup_32 - r_base + .word __KERNEL32_CS, 0 + + .balign 4 +startup_64_vector: + .long startup_64 - r_base + .word __KERNEL_CS, 0 + +trampoline_stack: + .org 0x1000 +trampoline_stack_end: +ENTRY(trampoline_level4_pgt) + .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE + .fill 510,8,0 + .quad level3_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE -.globl trampoline_end -trampoline_end: +ENTRY(trampoline_end) diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 09d2e8a..d76fc32 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -426,8 +426,7 @@ void show_registers(struct pt_regs *regs) const int cpu = smp_processor_id(); struct task_struct *cur = cpu_pda(cpu)->pcurrent; - rsp = regs->rsp; - + rsp = regs->rsp; printk("CPU %d ", cpu); __show_regs(regs); printk("Process %s (pid: %d, threadinfo %p, task %p)\n", @@ -438,7 +437,6 @@ void show_registers(struct pt_regs *regs) * time of the fault.. */ if (in_kernel) { - printk("Stack: "); _show_stack(NULL, regs, (unsigned long*)rsp); @@ -581,10 +579,20 @@ static void __kprobes do_trap(int trapnr, int signr, char *str, { struct task_struct *tsk = current; - tsk->thread.error_code = error_code; - tsk->thread.trap_no = trapnr; - if (user_mode(regs)) { + /* + * We want error_code and trap_no set for userspace + * faults and kernelspace faults which result in + * die(), but not kernelspace faults which are fixed + * up. die() gives the process no chance to handle + * the signal and notice the kernel fault information, + * so that won't result in polluting the information + * about previously queued, but not yet delivered, + * faults. See also do_general_protection below. + */ + tsk->thread.error_code = error_code; + tsk->thread.trap_no = trapnr; + if (exception_trace && unhandled_signal(tsk, signr)) printk(KERN_INFO "%s[%d] trap %s rip:%lx rsp:%lx error:%lx\n", @@ -605,8 +613,11 @@ static void __kprobes do_trap(int trapnr, int signr, char *str, fixup = search_exception_tables(regs->rip); if (fixup) regs->rip = fixup->fixup; - else + else { + tsk->thread.error_code = error_code; + tsk->thread.trap_no = trapnr; die(str, regs, error_code); + } return; } } @@ -682,10 +693,10 @@ asmlinkage void __kprobes do_general_protection(struct pt_regs * regs, conditional_sti(regs); - tsk->thread.error_code = error_code; - tsk->thread.trap_no = 13; - if (user_mode(regs)) { + tsk->thread.error_code = error_code; + tsk->thread.trap_no = 13; + if (exception_trace && unhandled_signal(tsk, SIGSEGV)) printk(KERN_INFO "%s[%d] general protection rip:%lx rsp:%lx error:%lx\n", @@ -704,6 +715,9 @@ asmlinkage void __kprobes do_general_protection(struct pt_regs * regs, regs->rip = fixup->fixup; return; } + + tsk->thread.error_code = error_code; + tsk->thread.trap_no = 13; if (notify_die(DIE_GPF, "general protection fault", regs, error_code, 13, SIGSEGV) == NOTIFY_STOP) return; diff --git a/arch/x86_64/kernel/tsc.c b/arch/x86_64/kernel/tsc.c index 1a0edbb..48f9a8e 100644 --- a/arch/x86_64/kernel/tsc.c +++ b/arch/x86_64/kernel/tsc.c @@ -13,6 +13,8 @@ static int notsc __initdata = 0; unsigned int cpu_khz; /* TSC clocks / usec, not used here */ EXPORT_SYMBOL(cpu_khz); +unsigned int tsc_khz; +EXPORT_SYMBOL(tsc_khz); static unsigned int cyc2ns_scale __read_mostly; @@ -77,7 +79,7 @@ static void handle_cpufreq_delayed_get(struct work_struct *v) static unsigned int ref_freq = 0; static unsigned long loops_per_jiffy_ref = 0; -static unsigned long cpu_khz_ref = 0; +static unsigned long tsc_khz_ref = 0; static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, void *data) @@ -99,7 +101,7 @@ static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, if (!ref_freq) { ref_freq = freq->old; loops_per_jiffy_ref = *lpj; - cpu_khz_ref = cpu_khz; + tsc_khz_ref = tsc_khz; } if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) || (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) || @@ -107,12 +109,12 @@ static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, *lpj = cpufreq_scale(loops_per_jiffy_ref, ref_freq, freq->new); - cpu_khz = cpufreq_scale(cpu_khz_ref, ref_freq, freq->new); + tsc_khz = cpufreq_scale(tsc_khz_ref, ref_freq, freq->new); if (!(freq->flags & CPUFREQ_CONST_LOOPS)) - mark_tsc_unstable(); + mark_tsc_unstable("cpufreq changes"); } - set_cyc2ns_scale(cpu_khz_ref); + set_cyc2ns_scale(tsc_khz_ref); return 0; } @@ -197,10 +199,11 @@ static struct clocksource clocksource_tsc = { .vread = vread_tsc, }; -void mark_tsc_unstable(void) +void mark_tsc_unstable(char *reason) { if (!tsc_unstable) { tsc_unstable = 1; + printk("Marking TSC unstable due to %s\n", reason); /* Change only the rating, when not registered */ if (clocksource_tsc.mult) clocksource_change_rating(&clocksource_tsc, 0); @@ -213,7 +216,7 @@ EXPORT_SYMBOL_GPL(mark_tsc_unstable); void __init init_tsc_clocksource(void) { if (!notsc) { - clocksource_tsc.mult = clocksource_khz2mult(cpu_khz, + clocksource_tsc.mult = clocksource_khz2mult(tsc_khz, clocksource_tsc.shift); if (check_tsc_unstable()) clocksource_tsc.rating = 0; diff --git a/arch/x86_64/kernel/tsc_sync.c b/arch/x86_64/kernel/tsc_sync.c index 014f0db..355f5f5 100644 --- a/arch/x86_64/kernel/tsc_sync.c +++ b/arch/x86_64/kernel/tsc_sync.c @@ -50,7 +50,7 @@ static __cpuinit void check_tsc_warp(void) /* * The measurement runs for 20 msecs: */ - end = start + cpu_khz * 20ULL; + end = start + tsc_khz * 20ULL; now = start; for (i = 0; ; i++) { @@ -138,7 +138,7 @@ void __cpuinit check_tsc_sync_source(int cpu) printk("\n"); printk(KERN_WARNING "Measured %Ld cycles TSC warp between CPUs," " turning off TSC clock.\n", max_warp); - mark_tsc_unstable(); + mark_tsc_unstable("check_tsc_sync_source failed"); nr_warps = 0; max_warp = 0; last_tsc = 0; diff --git a/arch/x86_64/kernel/verify_cpu.S b/arch/x86_64/kernel/verify_cpu.S new file mode 100644 index 0000000..e035f59 --- /dev/null +++ b/arch/x86_64/kernel/verify_cpu.S @@ -0,0 +1,119 @@ +/* + * + * verify_cpu.S - Code for cpu long mode and SSE verification. This + * code has been borrowed from boot/setup.S and was introduced by + * Andi Kleen. + * + * Copyright (c) 2007 Andi Kleen (ak@suse.de) + * Copyright (c) 2007 Eric Biederman (ebiederm@xmission.com) + * Copyright (c) 2007 Vivek Goyal (vgoyal@in.ibm.com) + * + * This source code is licensed under the GNU General Public License, + * Version 2. See the file COPYING for more details. + * + * This is a common code for verification whether CPU supports + * long mode and SSE or not. It is not called directly instead this + * file is included at various places and compiled in that context. + * Following are the current usage. + * + * This file is included by both 16bit and 32bit code. + * + * arch/x86_64/boot/setup.S : Boot cpu verification (16bit) + * arch/x86_64/boot/compressed/head.S: Boot cpu verification (32bit) + * arch/x86_64/kernel/trampoline.S: secondary processor verfication (16bit) + * arch/x86_64/kernel/acpi/wakeup.S:Verfication at resume (16bit) + * + * verify_cpu, returns the status of cpu check in register %eax. + * 0: Success 1: Failure + * + * The caller needs to check for the error code and take the action + * appropriately. Either display a message or halt. + */ + +#include <asm/cpufeature.h> + +verify_cpu: + pushfl # Save caller passed flags + pushl $0 # Kill any dangerous flags + popfl + + /* minimum CPUID flags for x86-64 as defined by AMD */ +#define M(x) (1<<(x)) +#define M2(a,b) M(a)|M(b) +#define M4(a,b,c,d) M(a)|M(b)|M(c)|M(d) + +#define SSE_MASK \ + (M2(X86_FEATURE_XMM,X86_FEATURE_XMM2)) +#define REQUIRED_MASK1 \ + (M4(X86_FEATURE_FPU,X86_FEATURE_PSE,X86_FEATURE_TSC,X86_FEATURE_MSR)|\ + M4(X86_FEATURE_PAE,X86_FEATURE_CX8,X86_FEATURE_PGE,X86_FEATURE_CMOV)|\ + M(X86_FEATURE_FXSR)) +#define REQUIRED_MASK2 \ + (M(X86_FEATURE_LM - 32)) + + pushfl # standard way to check for cpuid + popl %eax + movl %eax,%ebx + xorl $0x200000,%eax + pushl %eax + popfl + pushfl + popl %eax + cmpl %eax,%ebx + jz verify_cpu_no_longmode # cpu has no cpuid + + movl $0x0,%eax # See if cpuid 1 is implemented + cpuid + cmpl $0x1,%eax + jb verify_cpu_no_longmode # no cpuid 1 + + xor %di,%di + cmpl $0x68747541,%ebx # AuthenticAMD + jnz verify_cpu_noamd + cmpl $0x69746e65,%edx + jnz verify_cpu_noamd + cmpl $0x444d4163,%ecx + jnz verify_cpu_noamd + mov $1,%di # cpu is from AMD + +verify_cpu_noamd: + movl $0x1,%eax # Does the cpu have what it takes + cpuid + andl $REQUIRED_MASK1,%edx + xorl $REQUIRED_MASK1,%edx + jnz verify_cpu_no_longmode + + movl $0x80000000,%eax # See if extended cpuid is implemented + cpuid + cmpl $0x80000001,%eax + jb verify_cpu_no_longmode # no extended cpuid + + movl $0x80000001,%eax # Does the cpu have what it takes + cpuid + andl $REQUIRED_MASK2,%edx + xorl $REQUIRED_MASK2,%edx + jnz verify_cpu_no_longmode + +verify_cpu_sse_test: + movl $1,%eax + cpuid + andl $SSE_MASK,%edx + cmpl $SSE_MASK,%edx + je verify_cpu_sse_ok + test %di,%di + jz verify_cpu_no_longmode # only try to force SSE on AMD + movl $0xc0010015,%ecx # HWCR + rdmsr + btr $15,%eax # enable SSE + wrmsr + xor %di,%di # don't loop + jmp verify_cpu_sse_test # try again + +verify_cpu_no_longmode: + popfl # Restore caller passed flags + movl $1,%eax + ret +verify_cpu_sse_ok: + popfl # Restore caller passed flags + xorl %eax, %eax + ret diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S index 5176ecf..88cfa50 100644 --- a/arch/x86_64/kernel/vmlinux.lds.S +++ b/arch/x86_64/kernel/vmlinux.lds.S @@ -29,9 +29,7 @@ SECTIONS .text : AT(ADDR(.text) - LOAD_OFFSET) { /* First the code that has to be first for bootstrapping */ *(.bootstrap.text) - /* Then all the functions that are "hot" in profiles, to group them - onto the same hugetlb entry */ - #include "functionlist" + _stext = .; /* Then the rest */ *(.text) SCHED_TEXT @@ -50,10 +48,10 @@ SECTIONS __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { *(__ex_table) } __stop___ex_table = .; - RODATA - BUG_TABLE + RODATA + . = ALIGN(PAGE_SIZE); /* Align data segment to page size boundary */ /* Data */ .data : AT(ADDR(.data) - LOAD_OFFSET) { @@ -94,6 +92,12 @@ SECTIONS { *(.vsyscall_gtod_data) } vsyscall_gtod_data = VVIRT(.vsyscall_gtod_data); + + .vsyscall_1 ADDR(.vsyscall_0) + 1024: AT(VLOAD(.vsyscall_1)) + { *(.vsyscall_1) } + .vsyscall_2 ADDR(.vsyscall_0) + 2048: AT(VLOAD(.vsyscall_2)) + { *(.vsyscall_2) } + .vgetcpu_mode : AT(VLOAD(.vgetcpu_mode)) { *(.vgetcpu_mode) } vgetcpu_mode = VVIRT(.vgetcpu_mode); @@ -101,10 +105,6 @@ SECTIONS .jiffies : AT(VLOAD(.jiffies)) { *(.jiffies) } jiffies = VVIRT(.jiffies); - .vsyscall_1 ADDR(.vsyscall_0) + 1024: AT(VLOAD(.vsyscall_1)) - { *(.vsyscall_1) } - .vsyscall_2 ADDR(.vsyscall_0) + 2048: AT(VLOAD(.vsyscall_2)) - { *(.vsyscall_2) } .vsyscall_3 ADDR(.vsyscall_0) + 3072: AT(VLOAD(.vsyscall_3)) { *(.vsyscall_3) } @@ -194,7 +194,7 @@ SECTIONS __initramfs_end = .; #endif - . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); + . = ALIGN(4096); __per_cpu_start = .; .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) } __per_cpu_end = .; diff --git a/arch/x86_64/kernel/vsyscall.c b/arch/x86_64/kernel/vsyscall.c index b43c698..dc32cef 100644 --- a/arch/x86_64/kernel/vsyscall.c +++ b/arch/x86_64/kernel/vsyscall.c @@ -45,14 +45,34 @@ #define __vsyscall(nr) __attribute__ ((unused,__section__(".vsyscall_" #nr))) #define __syscall_clobber "r11","rcx","memory" +#define __pa_vsymbol(x) \ + ({unsigned long v; \ + extern char __vsyscall_0; \ + asm("" : "=r" (v) : "0" (x)); \ + ((v - VSYSCALL_FIRST_PAGE) + __pa_symbol(&__vsyscall_0)); }) +/* + * vsyscall_gtod_data contains data that is : + * - readonly from vsyscalls + * - writen by timer interrupt or systcl (/proc/sys/kernel/vsyscall64) + * Try to keep this structure as small as possible to avoid cache line ping pongs + */ struct vsyscall_gtod_data_t { - seqlock_t lock; - int sysctl_enabled; - struct timeval wall_time_tv; + seqlock_t lock; + + /* open coded 'struct timespec' */ + time_t wall_time_sec; + u32 wall_time_nsec; + + int sysctl_enabled; struct timezone sys_tz; - cycle_t offset_base; - struct clocksource clock; + struct { /* extract of a clocksource struct */ + cycle_t (*vread)(void); + cycle_t cycle_last; + cycle_t mask; + u32 mult; + u32 shift; + } clock; }; int __vgetcpu_mode __section_vgetcpu_mode; @@ -68,9 +88,13 @@ void update_vsyscall(struct timespec *wall_time, struct clocksource *clock) write_seqlock_irqsave(&vsyscall_gtod_data.lock, flags); /* copy vsyscall data */ - vsyscall_gtod_data.clock = *clock; - vsyscall_gtod_data.wall_time_tv.tv_sec = wall_time->tv_sec; - vsyscall_gtod_data.wall_time_tv.tv_usec = wall_time->tv_nsec/1000; + vsyscall_gtod_data.clock.vread = clock->vread; + vsyscall_gtod_data.clock.cycle_last = clock->cycle_last; + vsyscall_gtod_data.clock.mask = clock->mask; + vsyscall_gtod_data.clock.mult = clock->mult; + vsyscall_gtod_data.clock.shift = clock->shift; + vsyscall_gtod_data.wall_time_sec = wall_time->tv_sec; + vsyscall_gtod_data.wall_time_nsec = wall_time->tv_nsec; vsyscall_gtod_data.sys_tz = sys_tz; write_sequnlock_irqrestore(&vsyscall_gtod_data.lock, flags); } @@ -105,7 +129,8 @@ static __always_inline long time_syscall(long *t) static __always_inline void do_vgettimeofday(struct timeval * tv) { cycle_t now, base, mask, cycle_delta; - unsigned long seq, mult, shift, nsec_delta; + unsigned seq; + unsigned long mult, shift, nsec; cycle_t (*vread)(void); do { seq = read_seqbegin(&__vsyscall_gtod_data.lock); @@ -121,21 +146,20 @@ static __always_inline void do_vgettimeofday(struct timeval * tv) mult = __vsyscall_gtod_data.clock.mult; shift = __vsyscall_gtod_data.clock.shift; - *tv = __vsyscall_gtod_data.wall_time_tv; - + tv->tv_sec = __vsyscall_gtod_data.wall_time_sec; + nsec = __vsyscall_gtod_data.wall_time_nsec; } while (read_seqretry(&__vsyscall_gtod_data.lock, seq)); /* calculate interval: */ cycle_delta = (now - base) & mask; /* convert to nsecs: */ - nsec_delta = (cycle_delta * mult) >> shift; + nsec += (cycle_delta * mult) >> shift; - /* convert to usecs and add to timespec: */ - tv->tv_usec += nsec_delta / NSEC_PER_USEC; - while (tv->tv_usec > USEC_PER_SEC) { + while (nsec >= NSEC_PER_SEC) { tv->tv_sec += 1; - tv->tv_usec -= USEC_PER_SEC; + nsec -= NSEC_PER_SEC; } + tv->tv_usec = nsec / NSEC_PER_USEC; } int __vsyscall(0) vgettimeofday(struct timeval * tv, struct timezone * tz) @@ -151,11 +175,13 @@ int __vsyscall(0) vgettimeofday(struct timeval * tv, struct timezone * tz) * unlikely */ time_t __vsyscall(1) vtime(time_t *t) { + time_t result; if (unlikely(!__vsyscall_gtod_data.sysctl_enabled)) return time_syscall(t); - else if (t) - *t = __vsyscall_gtod_data.wall_time_tv.tv_sec; - return __vsyscall_gtod_data.wall_time_tv.tv_sec; + result = __vsyscall_gtod_data.wall_time_sec; + if (t) + *t = result; + return result; } /* Fast way to get current CPU and node. @@ -224,10 +250,10 @@ static int vsyscall_sysctl_change(ctl_table *ctl, int write, struct file * filp, return ret; /* gcc has some trouble with __va(__pa()), so just do it this way. */ - map1 = ioremap(__pa_symbol(&vsysc1), 2); + map1 = ioremap(__pa_vsymbol(&vsysc1), 2); if (!map1) return -ENOMEM; - map2 = ioremap(__pa_symbol(&vsysc2), 2); + map2 = ioremap(__pa_vsymbol(&vsysc2), 2); if (!map2) { ret = -ENOMEM; goto out; diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c index 6ada723..de99dba 100644 --- a/arch/x86_64/mm/fault.c +++ b/arch/x86_64/mm/fault.c @@ -585,7 +585,7 @@ do_sigbus: } DEFINE_SPINLOCK(pgd_lock); -struct page *pgd_list; +LIST_HEAD(pgd_list); void vmalloc_sync_all(void) { @@ -605,8 +605,7 @@ void vmalloc_sync_all(void) if (pgd_none(*pgd_ref)) continue; spin_lock(&pgd_lock); - for (page = pgd_list; page; - page = (struct page *)page->index) { + list_for_each_entry(page, &pgd_list, lru) { pgd_t *pgd; pgd = (pgd_t *)page_address(page) + pgd_index(address); if (pgd_none(*pgd)) diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c index ec31534..c082268 100644 --- a/arch/x86_64/mm/init.c +++ b/arch/x86_64/mm/init.c @@ -22,10 +22,12 @@ #include <linux/bootmem.h> #include <linux/proc_fs.h> #include <linux/pci.h> +#include <linux/pfn.h> #include <linux/poison.h> #include <linux/dma-mapping.h> #include <linux/module.h> #include <linux/memory_hotplug.h> +#include <linux/nmi.h> #include <asm/processor.h> #include <asm/system.h> @@ -46,7 +48,7 @@ #define Dprintk(x...) #endif -struct dma_mapping_ops* dma_ops; +const struct dma_mapping_ops* dma_ops; EXPORT_SYMBOL(dma_ops); static unsigned long dma_reserve __initdata; @@ -72,6 +74,11 @@ void show_mem(void) for_each_online_pgdat(pgdat) { for (i = 0; i < pgdat->node_spanned_pages; ++i) { + /* this loop can take a while with 256 GB and 4k pages + so update the NMI watchdog */ + if (unlikely(i % MAX_ORDER_NR_PAGES == 0)) { + touch_nmi_watchdog(); + } page = pfn_to_page(pgdat->node_start_pfn + i); total++; if (PageReserved(page)) @@ -167,23 +174,9 @@ __set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t prot) unsigned long __initdata table_start, table_end; -extern pmd_t temp_boot_pmds[]; - -static struct temp_map { - pmd_t *pmd; - void *address; - int allocated; -} temp_mappings[] __initdata = { - { &temp_boot_pmds[0], (void *)(40UL * 1024 * 1024) }, - { &temp_boot_pmds[1], (void *)(42UL * 1024 * 1024) }, - {} -}; - -static __meminit void *alloc_low_page(int *index, unsigned long *phys) +static __meminit void *alloc_low_page(unsigned long *phys) { - struct temp_map *ti; - int i; - unsigned long pfn = table_end++, paddr; + unsigned long pfn = table_end++; void *adr; if (after_bootmem) { @@ -194,57 +187,63 @@ static __meminit void *alloc_low_page(int *index, unsigned long *phys) if (pfn >= end_pfn) panic("alloc_low_page: ran out of memory"); - for (i = 0; temp_mappings[i].allocated; i++) { - if (!temp_mappings[i].pmd) - panic("alloc_low_page: ran out of temp mappings"); - } - ti = &temp_mappings[i]; - paddr = (pfn << PAGE_SHIFT) & PMD_MASK; - set_pmd(ti->pmd, __pmd(paddr | _KERNPG_TABLE | _PAGE_PSE)); - ti->allocated = 1; - __flush_tlb(); - adr = ti->address + ((pfn << PAGE_SHIFT) & ~PMD_MASK); + + adr = early_ioremap(pfn * PAGE_SIZE, PAGE_SIZE); memset(adr, 0, PAGE_SIZE); - *index = i; - *phys = pfn * PAGE_SIZE; - return adr; -} + *phys = pfn * PAGE_SIZE; + return adr; +} -static __meminit void unmap_low_page(int i) +static __meminit void unmap_low_page(void *adr) { - struct temp_map *ti; if (after_bootmem) return; - ti = &temp_mappings[i]; - set_pmd(ti->pmd, __pmd(0)); - ti->allocated = 0; + early_iounmap(adr, PAGE_SIZE); } /* Must run before zap_low_mappings */ __init void *early_ioremap(unsigned long addr, unsigned long size) { - unsigned long map = round_down(addr, LARGE_PAGE_SIZE); - - /* actually usually some more */ - if (size >= LARGE_PAGE_SIZE) { - return NULL; + unsigned long vaddr; + pmd_t *pmd, *last_pmd; + int i, pmds; + + pmds = ((addr & ~PMD_MASK) + size + ~PMD_MASK) / PMD_SIZE; + vaddr = __START_KERNEL_map; + pmd = level2_kernel_pgt; + last_pmd = level2_kernel_pgt + PTRS_PER_PMD - 1; + for (; pmd <= last_pmd; pmd++, vaddr += PMD_SIZE) { + for (i = 0; i < pmds; i++) { + if (pmd_present(pmd[i])) + goto next; + } + vaddr += addr & ~PMD_MASK; + addr &= PMD_MASK; + for (i = 0; i < pmds; i++, addr += PMD_SIZE) + set_pmd(pmd + i,__pmd(addr | _KERNPG_TABLE | _PAGE_PSE)); + __flush_tlb(); + return (void *)vaddr; + next: + ; } - set_pmd(temp_mappings[0].pmd, __pmd(map | _KERNPG_TABLE | _PAGE_PSE)); - map += LARGE_PAGE_SIZE; - set_pmd(temp_mappings[1].pmd, __pmd(map | _KERNPG_TABLE | _PAGE_PSE)); - __flush_tlb(); - return temp_mappings[0].address + (addr & (LARGE_PAGE_SIZE-1)); + printk("early_ioremap(0x%lx, %lu) failed\n", addr, size); + return NULL; } /* To avoid virtual aliases later */ __init void early_iounmap(void *addr, unsigned long size) { - if ((void *)round_down((unsigned long)addr, LARGE_PAGE_SIZE) != temp_mappings[0].address) - printk("early_iounmap: bad address %p\n", addr); - set_pmd(temp_mappings[0].pmd, __pmd(0)); - set_pmd(temp_mappings[1].pmd, __pmd(0)); + unsigned long vaddr; + pmd_t *pmd; + int i, pmds; + + vaddr = (unsigned long)addr; + pmds = ((vaddr & ~PMD_MASK) + size + ~PMD_MASK) / PMD_SIZE; + pmd = level2_kernel_pgt + pmd_index(vaddr); + for (i = 0; i < pmds; i++) + pmd_clear(pmd + i); __flush_tlb(); } @@ -289,7 +288,6 @@ static void __meminit phys_pud_init(pud_t *pud_page, unsigned long addr, unsigne for (; i < PTRS_PER_PUD; i++, addr = (addr & PUD_MASK) + PUD_SIZE ) { - int map; unsigned long pmd_phys; pud_t *pud = pud_page + pud_index(addr); pmd_t *pmd; @@ -307,12 +305,12 @@ static void __meminit phys_pud_init(pud_t *pud_page, unsigned long addr, unsigne continue; } - pmd = alloc_low_page(&map, &pmd_phys); + pmd = alloc_low_page(&pmd_phys); spin_lock(&init_mm.page_table_lock); set_pud(pud, __pud(pmd_phys | _KERNPG_TABLE)); phys_pmd_init(pmd, addr, end); spin_unlock(&init_mm.page_table_lock); - unmap_low_page(map); + unmap_low_page(pmd); } __flush_tlb(); } @@ -364,7 +362,6 @@ void __meminit init_memory_mapping(unsigned long start, unsigned long end) end = (unsigned long)__va(end); for (; start < end; start = next) { - int map; unsigned long pud_phys; pgd_t *pgd = pgd_offset_k(start); pud_t *pud; @@ -372,7 +369,7 @@ void __meminit init_memory_mapping(unsigned long start, unsigned long end) if (after_bootmem) pud = pud_offset(pgd, start & PGDIR_MASK); else - pud = alloc_low_page(&map, &pud_phys); + pud = alloc_low_page(&pud_phys); next = start + PGDIR_SIZE; if (next > end) @@ -380,7 +377,7 @@ void __meminit init_memory_mapping(unsigned long start, unsigned long end) phys_pud_init(pud, __pa(start), __pa(next)); if (!after_bootmem) set_pgd(pgd_offset_k(start), mk_kernel_pgd(pud_phys)); - unmap_low_page(map); + unmap_low_page(pud); } if (!after_bootmem) @@ -388,21 +385,6 @@ void __meminit init_memory_mapping(unsigned long start, unsigned long end) __flush_tlb_all(); } -void __cpuinit zap_low_mappings(int cpu) -{ - if (cpu == 0) { - pgd_t *pgd = pgd_offset_k(0UL); - pgd_clear(pgd); - } else { - /* - * For AP's, zap the low identity mappings by changing the cr3 - * to init_level4_pgt and doing local flush tlb all - */ - asm volatile("movq %0,%%cr3" :: "r" (__pa_symbol(&init_level4_pgt))); - } - __flush_tlb_all(); -} - #ifndef CONFIG_NUMA void __init paging_init(void) { @@ -579,15 +561,6 @@ void __init mem_init(void) reservedpages << (PAGE_SHIFT-10), datasize >> 10, initsize >> 10); - -#ifdef CONFIG_SMP - /* - * Sync boot_level4_pgt mappings with the init_level4_pgt - * except for the low identity mappings which are already zapped - * in init_level4_pgt. This sync-up is essential for AP's bringup - */ - memcpy(boot_level4_pgt+1, init_level4_pgt+1, (PTRS_PER_PGD-1)*sizeof(pgd_t)); -#endif } void free_init_pages(char *what, unsigned long begin, unsigned long end) @@ -597,21 +570,23 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end) if (begin >= end) return; - printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10); + printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10); for (addr = begin; addr < end; addr += PAGE_SIZE) { ClearPageReserved(virt_to_page(addr)); init_page_count(virt_to_page(addr)); memset((void *)(addr & ~(PAGE_SIZE-1)), POISON_FREE_INITMEM, PAGE_SIZE); + if (addr >= __START_KERNEL_map) + change_page_attr_addr(addr, 1, __pgprot(0)); free_page(addr); totalram_pages++; } + if (addr > __START_KERNEL_map) + global_flush_tlb(); } void free_initmem(void) { - memset(__initdata_begin, POISON_FREE_INITDATA, - __initdata_end - __initdata_begin); free_init_pages("unused kernel memory", (unsigned long)(&__init_begin), (unsigned long)(&__init_end)); @@ -621,13 +596,23 @@ void free_initmem(void) void mark_rodata_ro(void) { - unsigned long addr = (unsigned long)__start_rodata; + unsigned long start = (unsigned long)_stext, end; + +#ifdef CONFIG_HOTPLUG_CPU + /* It must still be possible to apply SMP alternatives. */ + if (num_possible_cpus() > 1) + start = (unsigned long)_etext; +#endif + end = (unsigned long)__end_rodata; + start = (start + PAGE_SIZE - 1) & PAGE_MASK; + end &= PAGE_MASK; + if (end <= start) + return; - for (; addr < (unsigned long)__end_rodata; addr += PAGE_SIZE) - change_page_attr_addr(addr, 1, PAGE_KERNEL_RO); + change_page_attr_addr(start, (end - start) >> PAGE_SHIFT, PAGE_KERNEL_RO); - printk ("Write protecting the kernel read-only data: %luk\n", - (__end_rodata - __start_rodata) >> 10); + printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n", + (end - start) >> 10); /* * change_page_attr_addr() requires a global_flush_tlb() call after it. diff --git a/arch/x86_64/mm/ioremap.c b/arch/x86_64/mm/ioremap.c index c6e5e8d..6cac90a 100644 --- a/arch/x86_64/mm/ioremap.c +++ b/arch/x86_64/mm/ioremap.c @@ -13,12 +13,21 @@ #include <linux/slab.h> #include <linux/module.h> #include <linux/io.h> + #include <asm/pgalloc.h> #include <asm/fixmap.h> #include <asm/tlbflush.h> #include <asm/cacheflush.h> #include <asm/proto.h> +unsigned long __phys_addr(unsigned long x) +{ + if (x >= __START_KERNEL_map) + return x - __START_KERNEL_map + phys_base; + return x - PAGE_OFFSET; +} +EXPORT_SYMBOL(__phys_addr); + #define ISA_START_ADDRESS 0xa0000 #define ISA_END_ADDRESS 0x100000 diff --git a/arch/x86_64/mm/k8topology.c b/arch/x86_64/mm/k8topology.c index b5b8dba..f983c75 100644 --- a/arch/x86_64/mm/k8topology.c +++ b/arch/x86_64/mm/k8topology.c @@ -49,11 +49,8 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end) int found = 0; u32 reg; unsigned numnodes; - nodemask_t nodes_parsed; unsigned dualcore = 0; - nodes_clear(nodes_parsed); - if (!early_pci_allowed()) return -1; @@ -65,6 +62,8 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end) reg = read_pci_config(0, nb, 0, 0x60); numnodes = ((reg >> 4) & 0xF) + 1; + if (numnodes <= 1) + return -1; printk(KERN_INFO "Number of nodes %d\n", numnodes); @@ -102,7 +101,7 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end) nodeid, (base>>8)&3, (limit>>8) & 3); return -1; } - if (node_isset(nodeid, nodes_parsed)) { + if (node_isset(nodeid, node_possible_map)) { printk(KERN_INFO "Node %d already present. Skipping\n", nodeid); continue; @@ -155,7 +154,7 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end) prevbase = base; - node_set(nodeid, nodes_parsed); + node_set(nodeid, node_possible_map); } if (!found) diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c index 41b8fb0..5154894 100644 --- a/arch/x86_64/mm/numa.c +++ b/arch/x86_64/mm/numa.c @@ -273,125 +273,213 @@ void __init numa_init_array(void) #ifdef CONFIG_NUMA_EMU /* Numa emulation */ -int numa_fake __initdata = 0; +#define E820_ADDR_HOLE_SIZE(start, end) \ + (e820_hole_size((start) >> PAGE_SHIFT, (end) >> PAGE_SHIFT) << \ + PAGE_SHIFT) +char *cmdline __initdata; /* - * This function is used to find out if the start and end correspond to - * different zones. + * Setups up nid to range from addr to addr + size. If the end boundary is + * greater than max_addr, then max_addr is used instead. The return value is 0 + * if there is additional memory left for allocation past addr and -1 otherwise. + * addr is adjusted to be at the end of the node. */ -int zone_cross_over(unsigned long start, unsigned long end) +static int __init setup_node_range(int nid, struct bootnode *nodes, u64 *addr, + u64 size, u64 max_addr) { - if ((start < (MAX_DMA32_PFN << PAGE_SHIFT)) && - (end >= (MAX_DMA32_PFN << PAGE_SHIFT))) - return 1; - return 0; + int ret = 0; + nodes[nid].start = *addr; + *addr += size; + if (*addr >= max_addr) { + *addr = max_addr; + ret = -1; + } + nodes[nid].end = *addr; + node_set(nid, node_possible_map); + printk(KERN_INFO "Faking node %d at %016Lx-%016Lx (%LuMB)\n", nid, + nodes[nid].start, nodes[nid].end, + (nodes[nid].end - nodes[nid].start) >> 20); + return ret; } -static int __init numa_emulation(unsigned long start_pfn, unsigned long end_pfn) +/* + * Splits num_nodes nodes up equally starting at node_start. The return value + * is the number of nodes split up and addr is adjusted to be at the end of the + * last node allocated. + */ +static int __init split_nodes_equally(struct bootnode *nodes, u64 *addr, + u64 max_addr, int node_start, + int num_nodes) { - int i, big; - struct bootnode nodes[MAX_NUMNODES]; - unsigned long sz, old_sz; - unsigned long hole_size; - unsigned long start, end; - unsigned long max_addr = (end_pfn << PAGE_SHIFT); - - start = (start_pfn << PAGE_SHIFT); - hole_size = e820_hole_size(start, max_addr); - sz = (max_addr - start - hole_size) / numa_fake; - - /* Kludge needed for the hash function */ - - old_sz = sz; - /* - * Round down to the nearest FAKE_NODE_MIN_SIZE. - */ - sz &= FAKE_NODE_MIN_HASH_MASK; + unsigned int big; + u64 size; + int i; + if (num_nodes <= 0) + return -1; + if (num_nodes > MAX_NUMNODES) + num_nodes = MAX_NUMNODES; + size = (max_addr - *addr - E820_ADDR_HOLE_SIZE(*addr, max_addr)) / + num_nodes; /* - * We ensure that each node is at least 64MB big. Smaller than this - * size can cause VM hiccups. + * Calculate the number of big nodes that can be allocated as a result + * of consolidating the leftovers. */ - if (sz == 0) { - printk(KERN_INFO "Not enough memory for %d nodes. Reducing " - "the number of nodes\n", numa_fake); - numa_fake = (max_addr - start - hole_size) / FAKE_NODE_MIN_SIZE; - printk(KERN_INFO "Number of fake nodes will be = %d\n", - numa_fake); - sz = FAKE_NODE_MIN_SIZE; + big = ((size & ~FAKE_NODE_MIN_HASH_MASK) * num_nodes) / + FAKE_NODE_MIN_SIZE; + + /* Round down to nearest FAKE_NODE_MIN_SIZE. */ + size &= FAKE_NODE_MIN_HASH_MASK; + if (!size) { + printk(KERN_ERR "Not enough memory for each node. " + "NUMA emulation disabled.\n"); + return -1; } - /* - * Find out how many nodes can get an extra NODE_MIN_SIZE granule. - * This logic ensures the extra memory gets distributed among as many - * nodes as possible (as compared to one single node getting all that - * extra memory. - */ - big = ((old_sz - sz) * numa_fake) / FAKE_NODE_MIN_SIZE; - printk(KERN_INFO "Fake node Size: %luMB hole_size: %luMB big nodes: " - "%d\n", - (sz >> 20), (hole_size >> 20), big); - memset(&nodes,0,sizeof(nodes)); - end = start; - for (i = 0; i < numa_fake; i++) { - /* - * In case we are not able to allocate enough memory for all - * the nodes, we reduce the number of fake nodes. - */ - if (end >= max_addr) { - numa_fake = i - 1; - break; - } - start = nodes[i].start = end; - /* - * Final node can have all the remaining memory. - */ - if (i == numa_fake-1) - sz = max_addr - start; - end = nodes[i].start + sz; - /* - * Fir "big" number of nodes get extra granule. - */ + + for (i = node_start; i < num_nodes + node_start; i++) { + u64 end = *addr + size; if (i < big) end += FAKE_NODE_MIN_SIZE; /* - * Iterate over the range to ensure that this node gets at - * least sz amount of RAM (excluding holes) + * The final node can have the remaining system RAM. Other + * nodes receive roughly the same amount of available pages. */ - while ((end - start - e820_hole_size(start, end)) < sz) { - end += FAKE_NODE_MIN_SIZE; - if (end >= max_addr) - break; + if (i == num_nodes + node_start - 1) + end = max_addr; + else + while (end - *addr - E820_ADDR_HOLE_SIZE(*addr, end) < + size) { + end += FAKE_NODE_MIN_SIZE; + if (end > max_addr) { + end = max_addr; + break; + } + } + if (setup_node_range(i, nodes, addr, end - *addr, max_addr) < 0) + break; + } + return i - node_start + 1; +} + +/* + * Splits the remaining system RAM into chunks of size. The remaining memory is + * always assigned to a final node and can be asymmetric. Returns the number of + * nodes split. + */ +static int __init split_nodes_by_size(struct bootnode *nodes, u64 *addr, + u64 max_addr, int node_start, u64 size) +{ + int i = node_start; + size = (size << 20) & FAKE_NODE_MIN_HASH_MASK; + while (!setup_node_range(i++, nodes, addr, size, max_addr)) + ; + return i - node_start; +} + +/* + * Sets up the system RAM area from start_pfn to end_pfn according to the + * numa=fake command-line option. + */ +static int __init numa_emulation(unsigned long start_pfn, unsigned long end_pfn) +{ + struct bootnode nodes[MAX_NUMNODES]; + u64 addr = start_pfn << PAGE_SHIFT; + u64 max_addr = end_pfn << PAGE_SHIFT; + int num_nodes = 0; + int coeff_flag; + int coeff = -1; + int num = 0; + u64 size; + int i; + + memset(&nodes, 0, sizeof(nodes)); + /* + * If the numa=fake command-line is just a single number N, split the + * system RAM into N fake nodes. + */ + if (!strchr(cmdline, '*') && !strchr(cmdline, ',')) { + num_nodes = split_nodes_equally(nodes, &addr, max_addr, 0, + simple_strtol(cmdline, NULL, 0)); + if (num_nodes < 0) + return num_nodes; + goto out; + } + + /* Parse the command line. */ + for (coeff_flag = 0; ; cmdline++) { + if (*cmdline && isdigit(*cmdline)) { + num = num * 10 + *cmdline - '0'; + continue; } - /* - * Look at the next node to make sure there is some real memory - * to map. Bad things happen when the only memory present - * in a zone on a fake node is IO hole. - */ - while (e820_hole_size(end, end + FAKE_NODE_MIN_SIZE) > 0) { - if (zone_cross_over(start, end + sz)) { - end = (MAX_DMA32_PFN << PAGE_SHIFT); + if (*cmdline == '*') { + if (num > 0) + coeff = num; + coeff_flag = 1; + } + if (!*cmdline || *cmdline == ',') { + if (!coeff_flag) + coeff = 1; + /* + * Round down to the nearest FAKE_NODE_MIN_SIZE. + * Command-line coefficients are in megabytes. + */ + size = ((u64)num << 20) & FAKE_NODE_MIN_HASH_MASK; + if (size) + for (i = 0; i < coeff; i++, num_nodes++) + if (setup_node_range(num_nodes, nodes, + &addr, size, max_addr) < 0) + goto done; + if (!*cmdline) break; - } - if (end >= max_addr) + coeff_flag = 0; + coeff = -1; + } + num = 0; + } +done: + if (!num_nodes) + return -1; + /* Fill remainder of system RAM, if appropriate. */ + if (addr < max_addr) { + if (coeff_flag && coeff < 0) { + /* Split remaining nodes into num-sized chunks */ + num_nodes += split_nodes_by_size(nodes, &addr, max_addr, + num_nodes, num); + goto out; + } + switch (*(cmdline - 1)) { + case '*': + /* Split remaining nodes into coeff chunks */ + if (coeff <= 0) break; - end += FAKE_NODE_MIN_SIZE; + num_nodes += split_nodes_equally(nodes, &addr, max_addr, + num_nodes, coeff); + break; + case ',': + /* Do not allocate remaining system RAM */ + break; + default: + /* Give one final node */ + setup_node_range(num_nodes, nodes, &addr, + max_addr - addr, max_addr); + num_nodes++; } - if (end > max_addr) - end = max_addr; - nodes[i].end = end; - printk(KERN_INFO "Faking node %d at %016Lx-%016Lx (%LuMB)\n", - i, - nodes[i].start, nodes[i].end, - (nodes[i].end - nodes[i].start) >> 20); - node_set_online(i); - } - memnode_shift = compute_hash_shift(nodes, numa_fake); - if (memnode_shift < 0) { - memnode_shift = 0; - printk(KERN_ERR "No NUMA hash function found. Emulation disabled.\n"); - return -1; - } - for_each_online_node(i) { + } +out: + memnode_shift = compute_hash_shift(nodes, num_nodes); + if (memnode_shift < 0) { + memnode_shift = 0; + printk(KERN_ERR "No NUMA hash function found. NUMA emulation " + "disabled.\n"); + return -1; + } + + /* + * We need to vacate all active ranges that may have been registered by + * SRAT. + */ + remove_all_active_ranges(); + for_each_node_mask(i, node_possible_map) { e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT, nodes[i].end >> PAGE_SHIFT); setup_node_bootmem(i, nodes[i].start, nodes[i].end); @@ -399,26 +487,32 @@ static int __init numa_emulation(unsigned long start_pfn, unsigned long end_pfn) numa_init_array(); return 0; } -#endif +#undef E820_ADDR_HOLE_SIZE +#endif /* CONFIG_NUMA_EMU */ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn) { int i; + nodes_clear(node_possible_map); + #ifdef CONFIG_NUMA_EMU - if (numa_fake && !numa_emulation(start_pfn, end_pfn)) + if (cmdline && !numa_emulation(start_pfn, end_pfn)) return; + nodes_clear(node_possible_map); #endif #ifdef CONFIG_ACPI_NUMA if (!numa_off && !acpi_scan_nodes(start_pfn << PAGE_SHIFT, end_pfn << PAGE_SHIFT)) return; + nodes_clear(node_possible_map); #endif #ifdef CONFIG_K8_NUMA if (!numa_off && !k8_scan_nodes(start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT)) return; + nodes_clear(node_possible_map); #endif printk(KERN_INFO "%s\n", numa_off ? "NUMA turned off" : "No NUMA configuration found"); @@ -432,6 +526,7 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn) memnodemap[0] = 0; nodes_clear(node_online_map); node_set_online(0); + node_set(0, node_possible_map); for (i = 0; i < NR_CPUS; i++) numa_set_node(i, 0); node_to_cpumask[0] = cpumask_of_cpu(0); @@ -486,11 +581,8 @@ static __init int numa_setup(char *opt) if (!strncmp(opt,"off",3)) numa_off = 1; #ifdef CONFIG_NUMA_EMU - if(!strncmp(opt, "fake=", 5)) { - numa_fake = simple_strtoul(opt+5,NULL,0); ; - if (numa_fake >= MAX_NUMNODES) - numa_fake = MAX_NUMNODES; - } + if (!strncmp(opt, "fake=", 5)) + cmdline = opt + 5; #endif #ifdef CONFIG_ACPI_NUMA if (!strncmp(opt,"noacpi",6)) diff --git a/arch/x86_64/mm/pageattr.c b/arch/x86_64/mm/pageattr.c index 081409a..d653d0b 100644 --- a/arch/x86_64/mm/pageattr.c +++ b/arch/x86_64/mm/pageattr.c @@ -180,16 +180,24 @@ __change_page_attr(unsigned long address, unsigned long pfn, pgprot_t prot, */ int change_page_attr_addr(unsigned long address, int numpages, pgprot_t prot) { - int err = 0; + int err = 0, kernel_map = 0; int i; + if (address >= __START_KERNEL_map + && address < __START_KERNEL_map + KERNEL_TEXT_SIZE) { + address = (unsigned long)__va(__pa(address)); + kernel_map = 1; + } + down_write(&init_mm.mmap_sem); for (i = 0; i < numpages; i++, address += PAGE_SIZE) { unsigned long pfn = __pa(address) >> PAGE_SHIFT; - err = __change_page_attr(address, pfn, prot, PAGE_KERNEL); - if (err) - break; + if (!kernel_map || pte_present(pfn_pte(0, prot))) { + err = __change_page_attr(address, pfn, prot, PAGE_KERNEL); + if (err) + break; + } /* Handle kernel mapping too which aliases part of the * lowmem */ if (__pa(address) < KERNEL_TEXT_SIZE) { diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c index 2efe215..1e76bb0 100644 --- a/arch/x86_64/mm/srat.c +++ b/arch/x86_64/mm/srat.c @@ -419,19 +419,21 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end) return -1; } + node_possible_map = nodes_parsed; + /* Finally register nodes */ - for_each_node_mask(i, nodes_parsed) + for_each_node_mask(i, node_possible_map) setup_node_bootmem(i, nodes[i].start, nodes[i].end); /* Try again in case setup_node_bootmem missed one due to missing bootmem */ - for_each_node_mask(i, nodes_parsed) + for_each_node_mask(i, node_possible_map) if (!node_online(i)) setup_node_bootmem(i, nodes[i].start, nodes[i].end); for (i = 0; i < NR_CPUS; i++) { if (cpu_to_node[i] == NUMA_NO_NODE) continue; - if (!node_isset(cpu_to_node[i], nodes_parsed)) + if (!node_isset(cpu_to_node[i], node_possible_map)) numa_set_node(i, NUMA_NO_NODE); } numa_init_array(); diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S index ab63700..4fbd66a 100644 --- a/arch/xtensa/kernel/vmlinux.lds.S +++ b/arch/xtensa/kernel/vmlinux.lds.S @@ -198,7 +198,7 @@ SECTIONS __ftr_fixup : { *(__ftr_fixup) } __stop___ftr_fixup = .; - . = ALIGN(32); + . = ALIGN(4096); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; diff --git a/arch/xtensa/kernel/xtensa_ksyms.c b/arch/xtensa/kernel/xtensa_ksyms.c index 0b4cb93..cd7e6a0 100644 --- a/arch/xtensa/kernel/xtensa_ksyms.c +++ b/arch/xtensa/kernel/xtensa_ksyms.c @@ -18,7 +18,6 @@ #include <linux/interrupt.h> #include <asm/irq.h> #include <linux/in6.h> -#include <linux/pci.h> #include <linux/ide.h> #include <asm/uaccess.h> diff --git a/arch/xtensa/platform-iss/network.c b/arch/xtensa/platform-iss/network.c index ab05bff..4bfe333 100644 --- a/arch/xtensa/platform-iss/network.c +++ b/arch/xtensa/platform-iss/network.c @@ -251,7 +251,7 @@ static int tuntap_open(struct iss_net_private *lp) memset(&ifr, 0, sizeof ifr); ifr.ifr_flags = IFF_TAP | IFF_NO_PI; - strlcpy(ifr.ifr_name, dev_name, sizeof ifr.ifr_name - 1); + strlcpy(ifr.ifr_name, dev_name, sizeof ifr.ifr_name); if ((err = simc_ioctl(fd, TUNSETIFF, (void*) &ifr)) < 0) { printk("Failed to set interface, returned %d " diff --git a/arch/xtensa/platform-iss/setup.c b/arch/xtensa/platform-iss/setup.c index c8a42b6..f60c8cf 100644 --- a/arch/xtensa/platform-iss/setup.c +++ b/arch/xtensa/platform-iss/setup.c @@ -20,7 +20,6 @@ #include <linux/init.h> #include <linux/errno.h> #include <linux/reboot.h> -#include <linux/pci.h> #include <linux/kdev_t.h> #include <linux/types.h> #include <linux/major.h> |
