diff options
Diffstat (limited to 'arch/sparc')
37 files changed, 1229 insertions, 873 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 2bd5c28..05ef538 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -25,7 +25,8 @@ config SPARC select ARCH_WANT_OPTIONAL_GPIOLIB select RTC_CLASS select RTC_DRV_M48T59 - select HAVE_PERF_COUNTERS + select HAVE_PERF_EVENTS + select PERF_USE_VMALLOC select HAVE_DMA_ATTRS select HAVE_DMA_API_DEBUG @@ -47,7 +48,8 @@ config SPARC64 select RTC_DRV_BQ4802 select RTC_DRV_SUN4V select RTC_DRV_STARFIRE - select HAVE_PERF_COUNTERS + select HAVE_PERF_EVENTS + select PERF_USE_VMALLOC config ARCH_DEFCONFIG string @@ -99,7 +101,10 @@ config AUDIT_ARCH config HAVE_SETUP_PER_CPU_AREA def_bool y if SPARC64 -config HAVE_DYNAMIC_PER_CPU_AREA +config NEED_PER_CPU_EMBED_FIRST_CHUNK + def_bool y if SPARC64 + +config NEED_PER_CPU_PAGE_FIRST_CHUNK def_bool y if SPARC64 config GENERIC_HARDIRQS_NO__DO_IRQ diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile index 467221d..dfe272d 100644 --- a/arch/sparc/Makefile +++ b/arch/sparc/Makefile @@ -31,7 +31,6 @@ export BITS := 32 #KBUILD_CFLAGS += -g -pipe -fcall-used-g5 -fcall-used-g7 KBUILD_CFLAGS += -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7 KBUILD_AFLAGS += -m32 -CPPFLAGS_vmlinux.lds += -m32 #LDFLAGS_vmlinux = -N -Ttext 0xf0004000 # Since 2.5.40, the first stage is left not btfix-ed. @@ -45,9 +44,6 @@ else CHECKFLAGS += -D__sparc__ -D__sparc_v9__ -D__arch64__ -m64 -# Undefine sparc when processing vmlinux.lds - it is used -# And teach CPP we are doing 64 bit builds (for this case) -CPPFLAGS_vmlinux.lds += -m64 -Usparc LDFLAGS := -m elf64_sparc export BITS := 64 diff --git a/arch/sparc/configs/sparc32_defconfig b/arch/sparc/configs/sparc32_defconfig index a0f62a8..983d598 100644 --- a/arch/sparc/configs/sparc32_defconfig +++ b/arch/sparc/configs/sparc32_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.31-rc1 -# Tue Aug 18 23:45:52 2009 +# Linux kernel version: 2.6.31 +# Wed Sep 16 00:03:43 2009 # # CONFIG_64BIT is not set CONFIG_SPARC=y @@ -39,11 +39,12 @@ CONFIG_POSIX_MQUEUE_SYSCTL=y # # RCU Subsystem # -CONFIG_CLASSIC_RCU=y -# CONFIG_TREE_RCU is not set -# CONFIG_PREEMPT_RCU is not set +CONFIG_TREE_RCU=y +# CONFIG_TREE_PREEMPT_RCU is not set +# CONFIG_RCU_TRACE is not set +CONFIG_RCU_FANOUT=32 +# CONFIG_RCU_FANOUT_EXACT is not set # CONFIG_TREE_RCU_TRACE is not set -# CONFIG_PREEMPT_RCU_TRACE is not set # CONFIG_IKCONFIG is not set CONFIG_LOG_BUF_SHIFT=14 CONFIG_GROUP_SCHED=y @@ -87,10 +88,12 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y # # Performance Counters # +# CONFIG_PERF_COUNTERS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y # CONFIG_STRIP_ASM_SYMS is not set @@ -102,6 +105,8 @@ CONFIG_SLAB=y # CONFIG_MARKERS is not set CONFIG_HAVE_OPROFILE=y CONFIG_HAVE_ARCH_TRACEHOOK=y +CONFIG_HAVE_DMA_ATTRS=y +CONFIG_HAVE_DMA_API_DEBUG=y # # GCOV-based kernel profiling @@ -169,6 +174,7 @@ CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 CONFIG_SUN_PM=y # CONFIG_SPARC_LED is not set CONFIG_SERIAL_CONSOLE=y +# CONFIG_SPARC_LEON is not set # # Bus options (PCI etc.) @@ -259,6 +265,7 @@ CONFIG_IPV6_TUNNEL=m # CONFIG_NETFILTER is not set # CONFIG_IP_DCCP is not set # CONFIG_IP_SCTP is not set +# CONFIG_RDS is not set # CONFIG_TIPC is not set # CONFIG_ATM is not set # CONFIG_BRIDGE is not set @@ -288,6 +295,7 @@ CONFIG_NET_PKTGEN=m # CONFIG_AF_RXRPC is not set CONFIG_WIRELESS=y # CONFIG_CFG80211 is not set +CONFIG_CFG80211_DEFAULT_PS_VALUE=0 CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set @@ -295,7 +303,6 @@ CONFIG_WIRELESS_OLD_REGULATORY=y # # CFG80211 needs to be enabled for MAC80211 # -CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -426,6 +433,7 @@ CONFIG_SCSI_QLOGICPTI=m # CONFIG_SCSI_NSP32 is not set # CONFIG_SCSI_DEBUG is not set CONFIG_SCSI_SUNESP=y +# CONFIG_SCSI_PMCRAID is not set # CONFIG_SCSI_SRP is not set # CONFIG_SCSI_DH is not set # CONFIG_SCSI_OSD_INITIATOR is not set @@ -524,12 +532,7 @@ CONFIG_CHELSIO_T3_DEPENDS=y # CONFIG_SFC is not set # CONFIG_BE2NET is not set # CONFIG_TR is not set - -# -# Wireless LAN -# -# CONFIG_WLAN_PRE80211 is not set -# CONFIG_WLAN_80211 is not set +# CONFIG_WLAN is not set # # Enable WiMAX (Networking options) to see the WiMAX drivers @@ -569,11 +572,11 @@ CONFIG_INPUT_EVBUG=m # CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ATKBD=m -CONFIG_KEYBOARD_SUNKBD=m # 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_KEYBOARD_SUNKBD=m +# CONFIG_KEYBOARD_XTKBD is not set CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=m CONFIG_MOUSE_PS2_ALPS=y @@ -581,6 +584,7 @@ CONFIG_MOUSE_PS2_LOGIPS2PP=y CONFIG_MOUSE_PS2_SYNAPTICS=y CONFIG_MOUSE_PS2_TRACKPOINT=y # CONFIG_MOUSE_PS2_ELANTECH is not set +# CONFIG_MOUSE_PS2_SENTELIC is not set # CONFIG_MOUSE_PS2_TOUCHKIT is not set CONFIG_MOUSE_SERIAL=m # CONFIG_MOUSE_APPLETOUCH is not set @@ -708,12 +712,10 @@ CONFIG_SSB_POSSIBLE=y # # Console display driver support # -# CONFIG_PROM_CONSOLE is not set CONFIG_DUMMY_CONSOLE=y # CONFIG_SOUND is not set CONFIG_HID_SUPPORT=y CONFIG_HID=y -# CONFIG_HID_DEBUG is not set # CONFIG_HIDRAW is not set # CONFIG_HID_PID is not set @@ -814,6 +816,7 @@ CONFIG_FS_POSIX_ACL=y # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +# CONFIG_NILFS2_FS is not set CONFIG_FILE_LOCKING=y CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y @@ -877,7 +880,6 @@ CONFIG_ROMFS_BACKED_BY_BLOCK=y CONFIG_ROMFS_ON_BLOCK=y # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set -# CONFIG_NILFS2_FS is not set CONFIG_NETWORK_FILESYSTEMS=y CONFIG_NFS_FS=y # CONFIG_NFS_V3 is not set @@ -984,14 +986,17 @@ CONFIG_DEBUG_MEMORY_INIT=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set +# CONFIG_DEBUG_CREDENTIALS is not set # CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_BACKTRACE_SELF_TEST is not set # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set +# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set # CONFIG_FAULT_INJECTION is not set # CONFIG_SYSCTL_SYSCALL_CHECK is not set # CONFIG_PAGE_POISONING is not set +# CONFIG_DMA_API_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y CONFIG_KGDB=y @@ -1014,7 +1019,6 @@ CONFIG_CRYPTO=y # # Crypto core or helper # -# CONFIG_CRYPTO_FIPS is not set CONFIG_CRYPTO_ALGAPI=y CONFIG_CRYPTO_ALGAPI2=y CONFIG_CRYPTO_AEAD=y @@ -1057,11 +1061,13 @@ CONFIG_CRYPTO_PCBC=m # CONFIG_CRYPTO_HMAC=y # CONFIG_CRYPTO_XCBC is not set +# CONFIG_CRYPTO_VMAC is not set # # Digest # CONFIG_CRYPTO_CRC32C=m +# CONFIG_CRYPTO_GHASH is not set CONFIG_CRYPTO_MD4=y CONFIG_CRYPTO_MD5=y CONFIG_CRYPTO_MICHAEL_MIC=m diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig index fdddf7a..f80b881 100644 --- a/arch/sparc/configs/sparc64_defconfig +++ b/arch/sparc/configs/sparc64_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.31-rc1 -# Tue Aug 18 23:56:02 2009 +# Linux kernel version: 2.6.31 +# Tue Sep 15 17:06:03 2009 # CONFIG_64BIT=y CONFIG_SPARC=y @@ -19,7 +19,7 @@ CONFIG_LOCKDEP_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y CONFIG_AUDIT_ARCH=y CONFIG_HAVE_SETUP_PER_CPU_AREA=y -CONFIG_HAVE_DYNAMIC_PER_CPU_AREA=y +CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y CONFIG_MMU=y CONFIG_ARCH_NO_VIRT_TO_BUS=y @@ -48,11 +48,12 @@ CONFIG_POSIX_MQUEUE_SYSCTL=y # # RCU Subsystem # -CONFIG_CLASSIC_RCU=y -# CONFIG_TREE_RCU is not set -# CONFIG_PREEMPT_RCU is not set +CONFIG_TREE_RCU=y +# CONFIG_TREE_PREEMPT_RCU is not set +# CONFIG_RCU_TRACE is not set +CONFIG_RCU_FANOUT=64 +# CONFIG_RCU_FANOUT_EXACT is not set # CONFIG_TREE_RCU_TRACE is not set -# CONFIG_PREEMPT_RCU_TRACE is not set # CONFIG_IKCONFIG is not set CONFIG_LOG_BUF_SHIFT=18 CONFIG_GROUP_SCHED=y @@ -96,10 +97,13 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y +CONFIG_HAVE_PERF_COUNTERS=y # # Performance Counters # +CONFIG_PERF_COUNTERS=y +CONFIG_EVENT_PROFILE=y CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y @@ -119,7 +123,9 @@ CONFIG_KRETPROBES=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y CONFIG_HAVE_ARCH_TRACEHOOK=y +CONFIG_HAVE_DMA_ATTRS=y CONFIG_USE_GENERIC_SMP_HELPERS=y +CONFIG_HAVE_DMA_API_DEBUG=y # # GCOV-based kernel profiling @@ -317,6 +323,7 @@ CONFIG_IPV6_TUNNEL=m # CONFIG_NETFILTER is not set # CONFIG_IP_DCCP is not set # CONFIG_IP_SCTP is not set +# CONFIG_RDS is not set # CONFIG_TIPC is not set # CONFIG_ATM is not set # CONFIG_BRIDGE is not set @@ -349,6 +356,7 @@ CONFIG_NET_TCPPROBE=m # CONFIG_AF_RXRPC is not set CONFIG_WIRELESS=y # CONFIG_CFG80211 is not set +CONFIG_CFG80211_DEFAULT_PS_VALUE=0 CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set @@ -356,7 +364,6 @@ CONFIG_WIRELESS_OLD_REGULATORY=y # # CFG80211 needs to be enabled for MAC80211 # -CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -549,6 +556,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_DEBUG is not set # CONFIG_SCSI_SUNESP is not set +# CONFIG_SCSI_PMCRAID is not set # CONFIG_SCSI_SRP is not set # CONFIG_SCSI_DH is not set # CONFIG_SCSI_OSD_INITIATOR is not set @@ -704,12 +712,7 @@ CONFIG_NIU=m # CONFIG_SFC is not set # CONFIG_BE2NET is not set # CONFIG_TR is not set - -# -# Wireless LAN -# -# CONFIG_WLAN_PRE80211 is not set -# CONFIG_WLAN_80211 is not set +# CONFIG_WLAN is not set # # Enable WiMAX (Networking options) to see the WiMAX drivers @@ -768,11 +771,11 @@ CONFIG_INPUT_EVDEV=y # CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ATKBD=y -CONFIG_KEYBOARD_SUNKBD=y CONFIG_KEYBOARD_LKKBD=m -# CONFIG_KEYBOARD_XTKBD is not set # CONFIG_KEYBOARD_NEWTON is not set # CONFIG_KEYBOARD_STOWAWAY is not set +CONFIG_KEYBOARD_SUNKBD=y +# CONFIG_KEYBOARD_XTKBD is not set CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=y CONFIG_MOUSE_PS2_ALPS=y @@ -780,6 +783,7 @@ CONFIG_MOUSE_PS2_LOGIPS2PP=y CONFIG_MOUSE_PS2_SYNAPTICS=y CONFIG_MOUSE_PS2_TRACKPOINT=y # CONFIG_MOUSE_PS2_ELANTECH is not set +# CONFIG_MOUSE_PS2_SENTELIC is not set # CONFIG_MOUSE_PS2_TOUCHKIT is not set CONFIG_MOUSE_SERIAL=y # CONFIG_MOUSE_APPLETOUCH is not set @@ -883,7 +887,6 @@ CONFIG_I2C_ALGOBIT=y # # I2C system bus drivers (mostly embedded / system-on-chip) # -# CONFIG_I2C_DESIGNWARE is not set # CONFIG_I2C_OCORES is not set # CONFIG_I2C_SIMTEC is not set @@ -1102,7 +1105,6 @@ CONFIG_FB_ATY_GX=y # # Console display driver support # -# CONFIG_PROM_CONSOLE is not set CONFIG_DUMMY_CONSOLE=y CONFIG_FRAMEBUFFER_CONSOLE=y CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y @@ -1124,6 +1126,7 @@ CONFIG_LOGO=y CONFIG_LOGO_SUN_CLUT224=y CONFIG_SOUND=m CONFIG_SOUND_OSS_CORE=y +CONFIG_SOUND_OSS_CORE_PRECLAIM=y CONFIG_SND=m CONFIG_SND_TIMER=m CONFIG_SND_PCM=m @@ -1232,7 +1235,6 @@ CONFIG_SND_SUN_CS4231=m CONFIG_AC97_BUS=m CONFIG_HID_SUPPORT=y CONFIG_HID=y -# CONFIG_HID_DEBUG is not set # CONFIG_HIDRAW is not set # @@ -1256,6 +1258,7 @@ CONFIG_HID_DRAGONRISE=y CONFIG_HID_EZKEY=y CONFIG_HID_KYE=y CONFIG_HID_GYRATION=y +CONFIG_HID_TWINHAN=y CONFIG_HID_KENSINGTON=y CONFIG_HID_LOGITECH=y # CONFIG_LOGITECH_FF is not set @@ -1289,6 +1292,7 @@ CONFIG_USB=y # # Miscellaneous USB options # +# CONFIG_USB_DEVICEFS is not set # CONFIG_USB_DEVICE_CLASS is not set # CONFIG_USB_DYNAMIC_MINORS is not set # CONFIG_USB_OTG is not set @@ -1379,6 +1383,7 @@ CONFIG_USB_STORAGE=m # CONFIG_USB_LD is not set # CONFIG_USB_TRANCEVIBRATOR is not set # CONFIG_USB_IOWARRIOR is not set +# CONFIG_USB_TEST is not set # CONFIG_USB_ISIGHTFW is not set # CONFIG_USB_VST is not set # CONFIG_USB_GADGET is not set @@ -1493,6 +1498,7 @@ CONFIG_FS_POSIX_ACL=y # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +# CONFIG_NILFS2_FS is not set CONFIG_FILE_LOCKING=y CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y @@ -1553,7 +1559,6 @@ CONFIG_MISC_FILESYSTEMS=y # CONFIG_ROMFS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set -# CONFIG_NILFS2_FS is not set CONFIG_NETWORK_FILESYSTEMS=y # CONFIG_NFS_FS is not set # CONFIG_NFSD is not set @@ -1656,12 +1661,14 @@ CONFIG_DEBUG_MEMORY_INIT=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set # CONFIG_DEBUG_NOTIFIERS is not set +# CONFIG_DEBUG_CREDENTIALS is not set # CONFIG_BOOT_PRINTK_DELAY is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set # CONFIG_KPROBES_SANITY_TEST is not set # CONFIG_BACKTRACE_SELF_TEST is not set # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set +# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set # CONFIG_LKDTM is not set # CONFIG_FAULT_INJECTION is not set # CONFIG_LATENCYTOP is not set @@ -1692,6 +1699,7 @@ CONFIG_BLK_DEV_IO_TRACE=y # CONFIG_FTRACE_STARTUP_TEST is not set # CONFIG_RING_BUFFER_BENCHMARK is not set # CONFIG_DYNAMIC_DEBUG is not set +# CONFIG_DMA_API_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set @@ -1716,7 +1724,6 @@ CONFIG_CRYPTO=y # # Crypto core or helper # -# CONFIG_CRYPTO_FIPS is not set CONFIG_CRYPTO_ALGAPI=y CONFIG_CRYPTO_ALGAPI2=y CONFIG_CRYPTO_AEAD=y @@ -1759,11 +1766,13 @@ CONFIG_CRYPTO_XTS=m # CONFIG_CRYPTO_HMAC=y CONFIG_CRYPTO_XCBC=y +# CONFIG_CRYPTO_VMAC is not set # # Digest # CONFIG_CRYPTO_CRC32C=m +# CONFIG_CRYPTO_GHASH is not set CONFIG_CRYPTO_MD4=y CONFIG_CRYPTO_MD5=y CONFIG_CRYPTO_MICHAEL_MIC=m diff --git a/arch/sparc/include/asm/agp.h b/arch/sparc/include/asm/agp.h index c245687..70f52c1 100644 --- a/arch/sparc/include/asm/agp.h +++ b/arch/sparc/include/asm/agp.h @@ -7,10 +7,6 @@ #define unmap_page_from_agp(page) #define flush_agp_cache() mb() -/* Convert a physical address to an address suitable for the GART. */ -#define phys_to_gart(x) (x) -#define gart_to_phys(x) (x) - /* GATT allocation. Returns/accepts GATT kernel virtual address. */ #define alloc_gatt_pages(order) \ ((char *)__get_free_pages(GFP_KERNEL, (order))) diff --git a/arch/sparc/include/asm/hardirq_32.h b/arch/sparc/include/asm/hardirq_32.h index 4f63ed8..1620076 100644 --- a/arch/sparc/include/asm/hardirq_32.h +++ b/arch/sparc/include/asm/hardirq_32.h @@ -7,17 +7,7 @@ #ifndef __SPARC_HARDIRQ_H #define __SPARC_HARDIRQ_H -#include <linux/threads.h> -#include <linux/spinlock.h> -#include <linux/cache.h> - -/* entry.S is sensitive to the offsets of these fields */ /* XXX P3 Is it? */ -typedef struct { - unsigned int __softirq_pending; -} ____cacheline_aligned irq_cpustat_t; - -#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */ - #define HARDIRQ_BITS 8 +#include <asm-generic/hardirq.h> #endif /* __SPARC_HARDIRQ_H */ diff --git a/arch/sparc/include/asm/irq_32.h b/arch/sparc/include/asm/irq_32.h index ea43057..cbf4801 100644 --- a/arch/sparc/include/asm/irq_32.h +++ b/arch/sparc/include/asm/irq_32.h @@ -6,10 +6,10 @@ #ifndef _SPARC_IRQ_H #define _SPARC_IRQ_H -#include <linux/interrupt.h> - #define NR_IRQS 16 +#include <linux/interrupt.h> + #define irq_canonicalize(irq) (irq) extern void __init init_IRQ(void); diff --git a/arch/sparc/include/asm/mman.h b/arch/sparc/include/asm/mman.h index 988192e..c3029ad 100644 --- a/arch/sparc/include/asm/mman.h +++ b/arch/sparc/include/asm/mman.h @@ -20,6 +20,8 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x40000 /* create a huge page mapping */ #ifdef __KERNEL__ #ifndef __ASSEMBLY__ diff --git a/arch/sparc/include/asm/pci_32.h b/arch/sparc/include/asm/pci_32.h index ac0e836..e769f66 100644 --- a/arch/sparc/include/asm/pci_32.h +++ b/arch/sparc/include/asm/pci_32.h @@ -10,7 +10,6 @@ * or architectures with incomplete PCI setup by the loader. */ #define pcibios_assign_all_busses() 0 -#define pcibios_scan_all_fns(a, b) 0 #define PCIBIOS_MIN_IO 0UL #define PCIBIOS_MIN_MEM 0UL diff --git a/arch/sparc/include/asm/pci_64.h b/arch/sparc/include/asm/pci_64.h index 5cc9f6a..b63e51c 100644 --- a/arch/sparc/include/asm/pci_64.h +++ b/arch/sparc/include/asm/pci_64.h @@ -10,7 +10,6 @@ * or architectures with incomplete PCI setup by the loader. */ #define pcibios_assign_all_busses() 0 -#define pcibios_scan_all_fns(a, b) 0 #define PCIBIOS_MIN_IO 0UL #define PCIBIOS_MIN_MEM 0UL diff --git a/arch/sparc/include/asm/perf_counter.h b/arch/sparc/include/asm/perf_counter.h deleted file mode 100644 index 5d7a8ca..0000000 --- a/arch/sparc/include/asm/perf_counter.h +++ /dev/null @@ -1,14 +0,0 @@ -#ifndef __ASM_SPARC_PERF_COUNTER_H -#define __ASM_SPARC_PERF_COUNTER_H - -extern void set_perf_counter_pending(void); - -#define PERF_COUNTER_INDEX_OFFSET 0 - -#ifdef CONFIG_PERF_COUNTERS -extern void init_hw_perf_counters(void); -#else -static inline void init_hw_perf_counters(void) { } -#endif - -#endif diff --git a/arch/sparc/include/asm/perf_event.h b/arch/sparc/include/asm/perf_event.h new file mode 100644 index 0000000..7e26698 --- /dev/null +++ b/arch/sparc/include/asm/perf_event.h @@ -0,0 +1,14 @@ +#ifndef __ASM_SPARC_PERF_EVENT_H +#define __ASM_SPARC_PERF_EVENT_H + +extern void set_perf_event_pending(void); + +#define PERF_EVENT_INDEX_OFFSET 0 + +#ifdef CONFIG_PERF_EVENTS +extern void init_hw_perf_events(void); +#else +static inline void init_hw_perf_events(void) { } +#endif + +#endif diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index 0ff92fa..f3cb790 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -41,8 +41,8 @@ #define LOW_OBP_ADDRESS _AC(0x00000000f0000000,UL) #define HI_OBP_ADDRESS _AC(0x0000000100000000,UL) #define VMALLOC_START _AC(0x0000000100000000,UL) -#define VMALLOC_END _AC(0x0000000200000000,UL) -#define VMEMMAP_BASE _AC(0x0000000200000000,UL) +#define VMALLOC_END _AC(0x0000010000000000,UL) +#define VMEMMAP_BASE _AC(0x0000010000000000,UL) #define vmemmap ((struct page *)VMEMMAP_BASE) diff --git a/arch/sparc/include/asm/smp_64.h b/arch/sparc/include/asm/smp_64.h index becb6bf..f49e11c 100644 --- a/arch/sparc/include/asm/smp_64.h +++ b/arch/sparc/include/asm/smp_64.h @@ -36,7 +36,6 @@ extern int sparc64_multi_core; extern void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); -#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask /* * General functions that each host system must provide. diff --git a/arch/sparc/include/asm/topology_64.h b/arch/sparc/include/asm/topology_64.h index e5ea8d3..600a790 100644 --- a/arch/sparc/include/asm/topology_64.h +++ b/arch/sparc/include/asm/topology_64.h @@ -12,22 +12,8 @@ static inline int cpu_to_node(int cpu) #define parent_node(node) (node) -static inline cpumask_t node_to_cpumask(int node) -{ - return numa_cpumask_lookup_table[node]; -} #define cpumask_of_node(node) (&numa_cpumask_lookup_table[node]) -/* - * Returns a pointer to the cpumask of CPUs on Node 'node'. - * Deprecated: use "const struct cpumask *mask = cpumask_of_node(node)" - */ -#define node_to_cpumask_ptr(v, node) \ - cpumask_t *v = &(numa_cpumask_lookup_table[node]) - -#define node_to_cpumask_ptr_next(v, node) \ - v = &(numa_cpumask_lookup_table[node]) - struct pci_bus; #ifdef CONFIG_PCI extern int pcibus_to_node(struct pci_bus *pbus); @@ -52,13 +38,12 @@ static inline int pcibus_to_node(struct pci_bus *pbus) .busy_idx = 3, \ .idle_idx = 2, \ .newidle_idx = 0, \ - .wake_idx = 1, \ - .forkexec_idx = 1, \ + .wake_idx = 0, \ + .forkexec_idx = 0, \ .flags = SD_LOAD_BALANCE \ | SD_BALANCE_FORK \ | SD_BALANCE_EXEC \ - | SD_SERIALIZE \ - | SD_WAKE_BALANCE, \ + | SD_SERIALIZE, \ .last_balance = jiffies, \ .balance_interval = 1, \ } @@ -72,8 +57,6 @@ static inline int pcibus_to_node(struct pci_bus *pbus) #ifdef CONFIG_SMP #define topology_physical_package_id(cpu) (cpu_data(cpu).proc_id) #define topology_core_id(cpu) (cpu_data(cpu).core_id) -#define topology_core_siblings(cpu) (cpu_core_map[cpu]) -#define topology_thread_siblings(cpu) (per_cpu(cpu_sibling_map, cpu)) #define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) #define topology_thread_cpumask(cpu) (&per_cpu(cpu_sibling_map, cpu)) #define mc_capable() (sparc64_multi_core) diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h index 706df66..42f2316 100644 --- a/arch/sparc/include/asm/unistd.h +++ b/arch/sparc/include/asm/unistd.h @@ -395,7 +395,7 @@ #define __NR_preadv 324 #define __NR_pwritev 325 #define __NR_rt_tgsigqueueinfo 326 -#define __NR_perf_counter_open 327 +#define __NR_perf_event_open 327 #define NR_SYSCALLS 328 diff --git a/arch/sparc/include/asm/vio.h b/arch/sparc/include/asm/vio.h index d4de32f..9d83d3b 100644 --- a/arch/sparc/include/asm/vio.h +++ b/arch/sparc/include/asm/vio.h @@ -258,8 +258,6 @@ static inline void *vio_dring_entry(struct vio_dring_state *dr, static inline u32 vio_dring_avail(struct vio_dring_state *dr, unsigned int ring_size) { - BUILD_BUG_ON(!is_power_of_2(ring_size)); - return (dr->pending - ((dr->prod - dr->cons) & (ring_size - 1))); } diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile index 247cc620..5b47fab 100644 --- a/arch/sparc/kernel/Makefile +++ b/arch/sparc/kernel/Makefile @@ -7,7 +7,11 @@ ccflags-y := -Werror extra-y := head_$(BITS).o extra-y += init_task.o -extra-y += vmlinux.lds + +# Undefine sparc when processing vmlinux.lds - it is used +# And teach CPP we are doing $(BITS) builds (for this case) +CPPFLAGS_vmlinux.lds := -Usparc -m$(BITS) +extra-y += vmlinux.lds obj-$(CONFIG_SPARC32) += entry.o wof.o wuf.o obj-$(CONFIG_SPARC32) += etrap_32.o @@ -104,5 +108,5 @@ obj-$(CONFIG_AUDIT) += audit.o audit--$(CONFIG_AUDIT) := compat_audit.o obj-$(CONFIG_COMPAT) += $(audit--y) -pc--$(CONFIG_PERF_COUNTERS) := perf_counter.o +pc--$(CONFIG_PERF_EVENTS) := perf_event.o obj-$(CONFIG_SPARC64) += $(pc--y) diff --git a/arch/sparc/kernel/init_task.c b/arch/sparc/kernel/init_task.c index 28125c5..5fe3d65 100644 --- a/arch/sparc/kernel/init_task.c +++ b/arch/sparc/kernel/init_task.c @@ -18,6 +18,5 @@ EXPORT_SYMBOL(init_task); * If this is not aligned on a 8k boundry, then you should change code * in etrap.S which assumes it. */ -union thread_union init_thread_union - __attribute__((section (".data.init_task"))) - = { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = + { INIT_THREAD_INFO(init_task) }; diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index 8daab33..8ab1d47 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -229,7 +229,7 @@ static unsigned int sun4u_compute_tid(unsigned long imap, unsigned long cpuid) tid = ((a << IMAP_AID_SHIFT) | (n << IMAP_NID_SHIFT)); tid &= (IMAP_AID_SAFARI | - IMAP_NID_SAFARI);; + IMAP_NID_SAFARI); } } else { tid = cpuid << IMAP_TID_SHIFT; diff --git a/arch/sparc/kernel/ktlb.S b/arch/sparc/kernel/ktlb.S index 3ea6e8c..1d36147 100644 --- a/arch/sparc/kernel/ktlb.S +++ b/arch/sparc/kernel/ktlb.S @@ -280,8 +280,8 @@ kvmap_dtlb_nonlinear: #ifdef CONFIG_SPARSEMEM_VMEMMAP /* Do not use the TSB for vmemmap. */ - mov (VMEMMAP_BASE >> 24), %g5 - sllx %g5, 24, %g5 + mov (VMEMMAP_BASE >> 40), %g5 + sllx %g5, 40, %g5 cmp %g4,%g5 bgeu,pn %xcc, kvmap_vmemmap nop @@ -293,8 +293,8 @@ kvmap_dtlb_tsbmiss: sethi %hi(MODULES_VADDR), %g5 cmp %g4, %g5 blu,pn %xcc, kvmap_dtlb_longpath - mov (VMALLOC_END >> 24), %g5 - sllx %g5, 24, %g5 + mov (VMALLOC_END >> 40), %g5 + sllx %g5, 40, %g5 cmp %g4, %g5 bgeu,pn %xcc, kvmap_dtlb_longpath nop diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c index adf5f27..cb3c72c 100644 --- a/arch/sparc/kernel/ldc.c +++ b/arch/sparc/kernel/ldc.c @@ -1242,13 +1242,13 @@ int ldc_bind(struct ldc_channel *lp, const char *name) snprintf(lp->tx_irq_name, LDC_IRQ_NAME_MAX, "%s TX", name); err = request_irq(lp->cfg.rx_irq, ldc_rx, - IRQF_SAMPLE_RANDOM | IRQF_SHARED, + IRQF_SAMPLE_RANDOM | IRQF_DISABLED | IRQF_SHARED, lp->rx_irq_name, lp); if (err) return err; err = request_irq(lp->cfg.tx_irq, ldc_tx, - IRQF_SAMPLE_RANDOM | IRQF_SHARED, + IRQF_SAMPLE_RANDOM | IRQF_DISABLED | IRQF_SHARED, lp->tx_irq_name, lp); if (err) { free_irq(lp->cfg.rx_irq, lp); diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c index 378eb53..b129611 100644 --- a/arch/sparc/kernel/nmi.c +++ b/arch/sparc/kernel/nmi.c @@ -19,7 +19,7 @@ #include <linux/delay.h> #include <linux/smp.h> -#include <asm/perf_counter.h> +#include <asm/perf_event.h> #include <asm/ptrace.h> #include <asm/local.h> #include <asm/pcr.h> @@ -265,7 +265,7 @@ int __init nmi_init(void) } } if (!err) - init_hw_perf_counters(); + init_hw_perf_events(); return err; } diff --git a/arch/sparc/kernel/pcr.c b/arch/sparc/kernel/pcr.c index 68ff001..2d94e7a 100644 --- a/arch/sparc/kernel/pcr.c +++ b/arch/sparc/kernel/pcr.c @@ -7,7 +7,7 @@ #include <linux/init.h> #include <linux/irq.h> -#include <linux/perf_counter.h> +#include <linux/perf_event.h> #include <asm/pil.h> #include <asm/pcr.h> @@ -15,7 +15,7 @@ /* This code is shared between various users of the performance * counters. Users will be oprofile, pseudo-NMI watchdog, and the - * perf_counter support layer. + * perf_event support layer. */ #define PCR_SUN4U_ENABLE (PCR_PIC_PRIV | PCR_STRACE | PCR_UTRACE) @@ -42,14 +42,14 @@ void deferred_pcr_work_irq(int irq, struct pt_regs *regs) old_regs = set_irq_regs(regs); irq_enter(); -#ifdef CONFIG_PERF_COUNTERS - perf_counter_do_pending(); +#ifdef CONFIG_PERF_EVENTS + perf_event_do_pending(); #endif irq_exit(); set_irq_regs(old_regs); } -void set_perf_counter_pending(void) +void set_perf_event_pending(void) { set_softint(1 << PIL_DEFERRED_PCR_WORK); } diff --git a/arch/sparc/kernel/perf_counter.c b/arch/sparc/kernel/perf_counter.c deleted file mode 100644 index 09de4035..0000000 --- a/arch/sparc/kernel/perf_counter.c +++ /dev/null @@ -1,557 +0,0 @@ -/* Performance counter support for sparc64. - * - * Copyright (C) 2009 David S. Miller <davem@davemloft.net> - * - * This code is based almost entirely upon the x86 perf counter - * code, which is: - * - * Copyright (C) 2008 Thomas Gleixner <tglx@linutronix.de> - * Copyright (C) 2008-2009 Red Hat, Inc., Ingo Molnar - * Copyright (C) 2009 Jaswinder Singh Rajput - * Copyright (C) 2009 Advanced Micro Devices, Inc., Robert Richter - * Copyright (C) 2008-2009 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com> - */ - -#include <linux/perf_counter.h> -#include <linux/kprobes.h> -#include <linux/kernel.h> -#include <linux/kdebug.h> -#include <linux/mutex.h> - -#include <asm/cpudata.h> -#include <asm/atomic.h> -#include <asm/nmi.h> -#include <asm/pcr.h> - -/* Sparc64 chips have two performance counters, 32-bits each, with - * overflow interrupts generated on transition from 0xffffffff to 0. - * The counters are accessed in one go using a 64-bit register. - * - * Both counters are controlled using a single control register. The - * only way to stop all sampling is to clear all of the context (user, - * supervisor, hypervisor) sampling enable bits. But these bits apply - * to both counters, thus the two counters can't be enabled/disabled - * individually. - * - * The control register has two event fields, one for each of the two - * counters. It's thus nearly impossible to have one counter going - * while keeping the other one stopped. Therefore it is possible to - * get overflow interrupts for counters not currently "in use" and - * that condition must be checked in the overflow interrupt handler. - * - * So we use a hack, in that we program inactive counters with the - * "sw_count0" and "sw_count1" events. These count how many times - * the instruction "sethi %hi(0xfc000), %g0" is executed. It's an - * unusual way to encode a NOP and therefore will not trigger in - * normal code. - */ - -#define MAX_HWCOUNTERS 2 -#define MAX_PERIOD ((1UL << 32) - 1) - -#define PIC_UPPER_INDEX 0 -#define PIC_LOWER_INDEX 1 - -struct cpu_hw_counters { - struct perf_counter *counters[MAX_HWCOUNTERS]; - unsigned long used_mask[BITS_TO_LONGS(MAX_HWCOUNTERS)]; - unsigned long active_mask[BITS_TO_LONGS(MAX_HWCOUNTERS)]; - int enabled; -}; -DEFINE_PER_CPU(struct cpu_hw_counters, cpu_hw_counters) = { .enabled = 1, }; - -struct perf_event_map { - u16 encoding; - u8 pic_mask; -#define PIC_NONE 0x00 -#define PIC_UPPER 0x01 -#define PIC_LOWER 0x02 -}; - -struct sparc_pmu { - const struct perf_event_map *(*event_map)(int); - int max_events; - int upper_shift; - int lower_shift; - int event_mask; - int hv_bit; - int irq_bit; - int upper_nop; - int lower_nop; -}; - -static const struct perf_event_map ultra3i_perfmon_event_map[] = { - [PERF_COUNT_HW_CPU_CYCLES] = { 0x0000, PIC_UPPER | PIC_LOWER }, - [PERF_COUNT_HW_INSTRUCTIONS] = { 0x0001, PIC_UPPER | PIC_LOWER }, - [PERF_COUNT_HW_CACHE_REFERENCES] = { 0x0009, PIC_LOWER }, - [PERF_COUNT_HW_CACHE_MISSES] = { 0x0009, PIC_UPPER }, -}; - -static const struct perf_event_map *ultra3i_event_map(int event) -{ - return &ultra3i_perfmon_event_map[event]; -} - -static const struct sparc_pmu ultra3i_pmu = { - .event_map = ultra3i_event_map, - .max_events = ARRAY_SIZE(ultra3i_perfmon_event_map), - .upper_shift = 11, - .lower_shift = 4, - .event_mask = 0x3f, - .upper_nop = 0x1c, - .lower_nop = 0x14, -}; - -static const struct perf_event_map niagara2_perfmon_event_map[] = { - [PERF_COUNT_HW_CPU_CYCLES] = { 0x02ff, PIC_UPPER | PIC_LOWER }, - [PERF_COUNT_HW_INSTRUCTIONS] = { 0x02ff, PIC_UPPER | PIC_LOWER }, - [PERF_COUNT_HW_CACHE_REFERENCES] = { 0x0208, PIC_UPPER | PIC_LOWER }, - [PERF_COUNT_HW_CACHE_MISSES] = { 0x0302, PIC_UPPER | PIC_LOWER }, - [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = { 0x0201, PIC_UPPER | PIC_LOWER }, - [PERF_COUNT_HW_BRANCH_MISSES] = { 0x0202, PIC_UPPER | PIC_LOWER }, -}; - -static const struct perf_event_map *niagara2_event_map(int event) -{ - return &niagara2_perfmon_event_map[event]; -} - -static const struct sparc_pmu niagara2_pmu = { - .event_map = niagara2_event_map, - .max_events = ARRAY_SIZE(niagara2_perfmon_event_map), - .upper_shift = 19, - .lower_shift = 6, - .event_mask = 0xfff, - .hv_bit = 0x8, - .irq_bit = 0x03, - .upper_nop = 0x220, - .lower_nop = 0x220, -}; - -static const struct sparc_pmu *sparc_pmu __read_mostly; - -static u64 event_encoding(u64 event, int idx) -{ - if (idx == PIC_UPPER_INDEX) - event <<= sparc_pmu->upper_shift; - else - event <<= sparc_pmu->lower_shift; - return event; -} - -static u64 mask_for_index(int idx) -{ - return event_encoding(sparc_pmu->event_mask, idx); -} - -static u64 nop_for_index(int idx) -{ - return event_encoding(idx == PIC_UPPER_INDEX ? - sparc_pmu->upper_nop : - sparc_pmu->lower_nop, idx); -} - -static inline void sparc_pmu_enable_counter(struct hw_perf_counter *hwc, - int idx) -{ - u64 val, mask = mask_for_index(idx); - - val = pcr_ops->read(); - pcr_ops->write((val & ~mask) | hwc->config); -} - -static inline void sparc_pmu_disable_counter(struct hw_perf_counter *hwc, - int idx) -{ - u64 mask = mask_for_index(idx); - u64 nop = nop_for_index(idx); - u64 val = pcr_ops->read(); - - pcr_ops->write((val & ~mask) | nop); -} - -void hw_perf_enable(void) -{ - struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters); - u64 val; - int i; - - if (cpuc->enabled) - return; - - cpuc->enabled = 1; - barrier(); - - val = pcr_ops->read(); - - for (i = 0; i < MAX_HWCOUNTERS; i++) { - struct perf_counter *cp = cpuc->counters[i]; - struct hw_perf_counter *hwc; - - if (!cp) - continue; - hwc = &cp->hw; - val |= hwc->config_base; - } - - pcr_ops->write(val); -} - -void hw_perf_disable(void) -{ - struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters); - u64 val; - - if (!cpuc->enabled) - return; - - cpuc->enabled = 0; - - val = pcr_ops->read(); - val &= ~(PCR_UTRACE | PCR_STRACE | - sparc_pmu->hv_bit | sparc_pmu->irq_bit); - pcr_ops->write(val); -} - -static u32 read_pmc(int idx) -{ - u64 val; - - read_pic(val); - if (idx == PIC_UPPER_INDEX) - val >>= 32; - - return val & 0xffffffff; -} - -static void write_pmc(int idx, u64 val) -{ - u64 shift, mask, pic; - - shift = 0; - if (idx == PIC_UPPER_INDEX) - shift = 32; - - mask = ((u64) 0xffffffff) << shift; - val <<= shift; - - read_pic(pic); - pic &= ~mask; - pic |= val; - write_pic(pic); -} - -static int sparc_perf_counter_set_period(struct perf_counter *counter, - struct hw_perf_counter *hwc, int idx) -{ - s64 left = atomic64_read(&hwc->period_left); - s64 period = hwc->sample_period; - int ret = 0; - - if (unlikely(left <= -period)) { - left = period; - atomic64_set(&hwc->period_left, left); - hwc->last_period = period; - ret = 1; - } - - if (unlikely(left <= 0)) { - left += period; - atomic64_set(&hwc->period_left, left); - hwc->last_period = period; - ret = 1; - } - if (left > MAX_PERIOD) - left = MAX_PERIOD; - - atomic64_set(&hwc->prev_count, (u64)-left); - - write_pmc(idx, (u64)(-left) & 0xffffffff); - - perf_counter_update_userpage(counter); - - return ret; -} - -static int sparc_pmu_enable(struct perf_counter *counter) -{ - struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters); - struct hw_perf_counter *hwc = &counter->hw; - int idx = hwc->idx; - - if (test_and_set_bit(idx, cpuc->used_mask)) - return -EAGAIN; - - sparc_pmu_disable_counter(hwc, idx); - - cpuc->counters[idx] = counter; - set_bit(idx, cpuc->active_mask); - - sparc_perf_counter_set_period(counter, hwc, idx); - sparc_pmu_enable_counter(hwc, idx); - perf_counter_update_userpage(counter); - return 0; -} - -static u64 sparc_perf_counter_update(struct perf_counter *counter, - struct hw_perf_counter *hwc, int idx) -{ - int shift = 64 - 32; - u64 prev_raw_count, new_raw_count; - s64 delta; - -again: - prev_raw_count = atomic64_read(&hwc->prev_count); - new_raw_count = read_pmc(idx); - - if (atomic64_cmpxchg(&hwc->prev_count, prev_raw_count, - new_raw_count) != prev_raw_count) - goto again; - - delta = (new_raw_count << shift) - (prev_raw_count << shift); - delta >>= shift; - - atomic64_add(delta, &counter->count); - atomic64_sub(delta, &hwc->period_left); - - return new_raw_count; -} - -static void sparc_pmu_disable(struct perf_counter *counter) -{ - struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters); - struct hw_perf_counter *hwc = &counter->hw; - int idx = hwc->idx; - - clear_bit(idx, cpuc->active_mask); - sparc_pmu_disable_counter(hwc, idx); - - barrier(); - - sparc_perf_counter_update(counter, hwc, idx); - cpuc->counters[idx] = NULL; - clear_bit(idx, cpuc->used_mask); - - perf_counter_update_userpage(counter); -} - -static void sparc_pmu_read(struct perf_counter *counter) -{ - struct hw_perf_counter *hwc = &counter->hw; - sparc_perf_counter_update(counter, hwc, hwc->idx); -} - -static void sparc_pmu_unthrottle(struct perf_counter *counter) -{ - struct hw_perf_counter *hwc = &counter->hw; - sparc_pmu_enable_counter(hwc, hwc->idx); -} - -static atomic_t active_counters = ATOMIC_INIT(0); -static DEFINE_MUTEX(pmc_grab_mutex); - -void perf_counter_grab_pmc(void) -{ - if (atomic_inc_not_zero(&active_counters)) - return; - - mutex_lock(&pmc_grab_mutex); - if (atomic_read(&active_counters) == 0) { - if (atomic_read(&nmi_active) > 0) { - on_each_cpu(stop_nmi_watchdog, NULL, 1); - BUG_ON(atomic_read(&nmi_active) != 0); - } - atomic_inc(&active_counters); - } - mutex_unlock(&pmc_grab_mutex); -} - -void perf_counter_release_pmc(void) -{ - if (atomic_dec_and_mutex_lock(&active_counters, &pmc_grab_mutex)) { - if (atomic_read(&nmi_active) == 0) - on_each_cpu(start_nmi_watchdog, NULL, 1); - mutex_unlock(&pmc_grab_mutex); - } -} - -static void hw_perf_counter_destroy(struct perf_counter *counter) -{ - perf_counter_release_pmc(); -} - -static int __hw_perf_counter_init(struct perf_counter *counter) -{ - struct perf_counter_attr *attr = &counter->attr; - struct hw_perf_counter *hwc = &counter->hw; - const struct perf_event_map *pmap; - u64 enc; - - if (atomic_read(&nmi_active) < 0) - return -ENODEV; - - if (attr->type != PERF_TYPE_HARDWARE) - return -EOPNOTSUPP; - - if (attr->config >= sparc_pmu->max_events) - return -EINVAL; - - perf_counter_grab_pmc(); - counter->destroy = hw_perf_counter_destroy; - - /* We save the enable bits in the config_base. So to - * turn off sampling just write 'config', and to enable - * things write 'config | config_base'. - */ - hwc->config_base = sparc_pmu->irq_bit; - if (!attr->exclude_user) - hwc->config_base |= PCR_UTRACE; - if (!attr->exclude_kernel) - hwc->config_base |= PCR_STRACE; - if (!attr->exclude_hv) - hwc->config_base |= sparc_pmu->hv_bit; - - if (!hwc->sample_period) { - hwc->sample_period = MAX_PERIOD; - hwc->last_period = hwc->sample_period; - atomic64_set(&hwc->period_left, hwc->sample_period); - } - - pmap = sparc_pmu->event_map(attr->config); - - enc = pmap->encoding; - if (pmap->pic_mask & PIC_UPPER) { - hwc->idx = PIC_UPPER_INDEX; - enc <<= sparc_pmu->upper_shift; - } else { - hwc->idx = PIC_LOWER_INDEX; - enc <<= sparc_pmu->lower_shift; - } - - hwc->config |= enc; - return 0; -} - -static const struct pmu pmu = { - .enable = sparc_pmu_enable, - .disable = sparc_pmu_disable, - .read = sparc_pmu_read, - .unthrottle = sparc_pmu_unthrottle, -}; - -const struct pmu *hw_perf_counter_init(struct perf_counter *counter) -{ - int err = __hw_perf_counter_init(counter); - - if (err) - return ERR_PTR(err); - return &pmu; -} - -void perf_counter_print_debug(void) -{ - unsigned long flags; - u64 pcr, pic; - int cpu; - - if (!sparc_pmu) - return; - - local_irq_save(flags); - - cpu = smp_processor_id(); - - pcr = pcr_ops->read(); - read_pic(pic); - - pr_info("\n"); - pr_info("CPU#%d: PCR[%016llx] PIC[%016llx]\n", - cpu, pcr, pic); - - local_irq_restore(flags); -} - -static int __kprobes perf_counter_nmi_handler(struct notifier_block *self, - unsigned long cmd, void *__args) -{ - struct die_args *args = __args; - struct perf_sample_data data; - struct cpu_hw_counters *cpuc; - struct pt_regs *regs; - int idx; - - if (!atomic_read(&active_counters)) - return NOTIFY_DONE; - - switch (cmd) { - case DIE_NMI: - break; - - default: - return NOTIFY_DONE; - } - - regs = args->regs; - - data.regs = regs; - data.addr = 0; - - cpuc = &__get_cpu_var(cpu_hw_counters); - for (idx = 0; idx < MAX_HWCOUNTERS; idx++) { - struct perf_counter *counter = cpuc->counters[idx]; - struct hw_perf_counter *hwc; - u64 val; - - if (!test_bit(idx, cpuc->active_mask)) - continue; - hwc = &counter->hw; - val = sparc_perf_counter_update(counter, hwc, idx); - if (val & (1ULL << 31)) - continue; - - data.period = counter->hw.last_period; - if (!sparc_perf_counter_set_period(counter, hwc, idx)) - continue; - - if (perf_counter_overflow(counter, 1, &data)) - sparc_pmu_disable_counter(hwc, idx); - } - - return NOTIFY_STOP; -} - -static __read_mostly struct notifier_block perf_counter_nmi_notifier = { - .notifier_call = perf_counter_nmi_handler, -}; - -static bool __init supported_pmu(void) -{ - if (!strcmp(sparc_pmu_type, "ultra3i")) { - sparc_pmu = &ultra3i_pmu; - return true; - } - if (!strcmp(sparc_pmu_type, "niagara2")) { - sparc_pmu = &niagara2_pmu; - return true; - } - return false; -} - -void __init init_hw_perf_counters(void) -{ - pr_info("Performance counters: "); - - if (!supported_pmu()) { - pr_cont("No support for PMU type '%s'\n", sparc_pmu_type); - return; - } - - pr_cont("Supported PMU type is '%s'\n", sparc_pmu_type); - - /* All sparc64 PMUs currently have 2 counters. But this simple - * driver only supports one active counter at a time. - */ - perf_max_counters = 1; - - register_die_notifier(&perf_counter_nmi_notifier); -} diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c new file mode 100644 index 0000000..fa5936e --- /dev/null +++ b/arch/sparc/kernel/perf_event.c @@ -0,0 +1,1053 @@ +/* Performance event support for sparc64. + * + * Copyright (C) 2009 David S. Miller <davem@davemloft.net> + * + * This code is based almost entirely upon the x86 perf event + * code, which is: + * + * Copyright (C) 2008 Thomas Gleixner <tglx@linutronix.de> + * Copyright (C) 2008-2009 Red Hat, Inc., Ingo Molnar + * Copyright (C) 2009 Jaswinder Singh Rajput + * Copyright (C) 2009 Advanced Micro Devices, Inc., Robert Richter + * Copyright (C) 2008-2009 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com> + */ + +#include <linux/perf_event.h> +#include <linux/kprobes.h> +#include <linux/kernel.h> +#include <linux/kdebug.h> +#include <linux/mutex.h> + +#include <asm/cpudata.h> +#include <asm/atomic.h> +#include <asm/nmi.h> +#include <asm/pcr.h> + +/* Sparc64 chips have two performance counters, 32-bits each, with + * overflow interrupts generated on transition from 0xffffffff to 0. + * The counters are accessed in one go using a 64-bit register. + * + * Both counters are controlled using a single control register. The + * only way to stop all sampling is to clear all of the context (user, + * supervisor, hypervisor) sampling enable bits. But these bits apply + * to both counters, thus the two counters can't be enabled/disabled + * individually. + * + * The control register has two event fields, one for each of the two + * counters. It's thus nearly impossible to have one counter going + * while keeping the other one stopped. Therefore it is possible to + * get overflow interrupts for counters not currently "in use" and + * that condition must be checked in the overflow interrupt handler. + * + * So we use a hack, in that we program inactive counters with the + * "sw_count0" and "sw_count1" events. These count how many times + * the instruction "sethi %hi(0xfc000), %g0" is executed. It's an + * unusual way to encode a NOP and therefore will not trigger in + * normal code. + */ + +#define MAX_HWEVENTS 2 +#define MAX_PERIOD ((1UL << 32) - 1) + +#define PIC_UPPER_INDEX 0 +#define PIC_LOWER_INDEX 1 + +struct cpu_hw_events { + struct perf_event *events[MAX_HWEVENTS]; + unsigned long used_mask[BITS_TO_LONGS(MAX_HWEVENTS)]; + unsigned long active_mask[BITS_TO_LONGS(MAX_HWEVENTS)]; + u64 pcr; + int enabled; +}; +DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = { .enabled = 1, }; + +struct perf_event_map { + u16 encoding; + u8 pic_mask; +#define PIC_NONE 0x00 +#define PIC_UPPER 0x01 +#define PIC_LOWER 0x02 +}; + +static unsigned long perf_event_encode(const struct perf_event_map *pmap) +{ + return ((unsigned long) pmap->encoding << 16) | pmap->pic_mask; +} + +static void perf_event_decode(unsigned long val, u16 *enc, u8 *msk) +{ + *msk = val & 0xff; + *enc = val >> 16; +} + +#define C(x) PERF_COUNT_HW_CACHE_##x + +#define CACHE_OP_UNSUPPORTED 0xfffe +#define CACHE_OP_NONSENSE 0xffff + +typedef struct perf_event_map cache_map_t + [PERF_COUNT_HW_CACHE_MAX] + [PERF_COUNT_HW_CACHE_OP_MAX] + [PERF_COUNT_HW_CACHE_RESULT_MAX]; + +struct sparc_pmu { + const struct perf_event_map *(*event_map)(int); + const cache_map_t *cache_map; + int max_events; + int upper_shift; + int lower_shift; + int event_mask; + int hv_bit; + int irq_bit; + int upper_nop; + int lower_nop; +}; + +static const struct perf_event_map ultra3_perfmon_event_map[] = { + [PERF_COUNT_HW_CPU_CYCLES] = { 0x0000, PIC_UPPER | PIC_LOWER }, + [PERF_COUNT_HW_INSTRUCTIONS] = { 0x0001, PIC_UPPER | PIC_LOWER }, + [PERF_COUNT_HW_CACHE_REFERENCES] = { 0x0009, PIC_LOWER }, + [PERF_COUNT_HW_CACHE_MISSES] = { 0x0009, PIC_UPPER }, +}; + +static const struct perf_event_map *ultra3_event_map(int event_id) +{ + return &ultra3_perfmon_event_map[event_id]; +} + +static const cache_map_t ultra3_cache_map = { +[C(L1D)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { 0x09, PIC_LOWER, }, + [C(RESULT_MISS)] = { 0x09, PIC_UPPER, }, + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = { 0x0a, PIC_LOWER }, + [C(RESULT_MISS)] = { 0x0a, PIC_UPPER }, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(L1I)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { 0x09, PIC_LOWER, }, + [C(RESULT_MISS)] = { 0x09, PIC_UPPER, }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_NONSENSE }, + [ C(RESULT_MISS) ] = { CACHE_OP_NONSENSE }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(LL)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { 0x0c, PIC_LOWER, }, + [C(RESULT_MISS)] = { 0x0c, PIC_UPPER, }, + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = { 0x0c, PIC_LOWER }, + [C(RESULT_MISS)] = { 0x0c, PIC_UPPER }, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(DTLB)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { 0x12, PIC_UPPER, }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(ITLB)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { 0x11, PIC_UPPER, }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(BPU)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, +}; + +static const struct sparc_pmu ultra3_pmu = { + .event_map = ultra3_event_map, + .cache_map = &ultra3_cache_map, + .max_events = ARRAY_SIZE(ultra3_perfmon_event_map), + .upper_shift = 11, + .lower_shift = 4, + .event_mask = 0x3f, + .upper_nop = 0x1c, + .lower_nop = 0x14, +}; + +/* Niagara1 is very limited. The upper PIC is hard-locked to count + * only instructions, so it is free running which creates all kinds of + * problems. Some hardware designs make one wonder if the creator + * even looked at how this stuff gets used by software. + */ +static const struct perf_event_map niagara1_perfmon_event_map[] = { + [PERF_COUNT_HW_CPU_CYCLES] = { 0x00, PIC_UPPER }, + [PERF_COUNT_HW_INSTRUCTIONS] = { 0x00, PIC_UPPER }, + [PERF_COUNT_HW_CACHE_REFERENCES] = { 0, PIC_NONE }, + [PERF_COUNT_HW_CACHE_MISSES] = { 0x03, PIC_LOWER }, +}; + +static const struct perf_event_map *niagara1_event_map(int event_id) +{ + return &niagara1_perfmon_event_map[event_id]; +} + +static const cache_map_t niagara1_cache_map = { +[C(L1D)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { 0x03, PIC_LOWER, }, + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { 0x03, PIC_LOWER, }, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(L1I)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { 0x00, PIC_UPPER }, + [C(RESULT_MISS)] = { 0x02, PIC_LOWER, }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_NONSENSE }, + [ C(RESULT_MISS) ] = { CACHE_OP_NONSENSE }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(LL)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { 0x07, PIC_LOWER, }, + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { 0x07, PIC_LOWER, }, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(DTLB)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { 0x05, PIC_LOWER, }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(ITLB)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { 0x04, PIC_LOWER, }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(BPU)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, +}; + +static const struct sparc_pmu niagara1_pmu = { + .event_map = niagara1_event_map, + .cache_map = &niagara1_cache_map, + .max_events = ARRAY_SIZE(niagara1_perfmon_event_map), + .upper_shift = 0, + .lower_shift = 4, + .event_mask = 0x7, + .upper_nop = 0x0, + .lower_nop = 0x0, +}; + +static const struct perf_event_map niagara2_perfmon_event_map[] = { + [PERF_COUNT_HW_CPU_CYCLES] = { 0x02ff, PIC_UPPER | PIC_LOWER }, + [PERF_COUNT_HW_INSTRUCTIONS] = { 0x02ff, PIC_UPPER | PIC_LOWER }, + [PERF_COUNT_HW_CACHE_REFERENCES] = { 0x0208, PIC_UPPER | PIC_LOWER }, + [PERF_COUNT_HW_CACHE_MISSES] = { 0x0302, PIC_UPPER | PIC_LOWER }, + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = { 0x0201, PIC_UPPER | PIC_LOWER }, + [PERF_COUNT_HW_BRANCH_MISSES] = { 0x0202, PIC_UPPER | PIC_LOWER }, +}; + +static const struct perf_event_map *niagara2_event_map(int event_id) +{ + return &niagara2_perfmon_event_map[event_id]; +} + +static const cache_map_t niagara2_cache_map = { +[C(L1D)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { 0x0208, PIC_UPPER | PIC_LOWER, }, + [C(RESULT_MISS)] = { 0x0302, PIC_UPPER | PIC_LOWER, }, + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = { 0x0210, PIC_UPPER | PIC_LOWER, }, + [C(RESULT_MISS)] = { 0x0302, PIC_UPPER | PIC_LOWER, }, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(L1I)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { 0x02ff, PIC_UPPER | PIC_LOWER, }, + [C(RESULT_MISS)] = { 0x0301, PIC_UPPER | PIC_LOWER, }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_NONSENSE }, + [ C(RESULT_MISS) ] = { CACHE_OP_NONSENSE }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(LL)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { 0x0208, PIC_UPPER | PIC_LOWER, }, + [C(RESULT_MISS)] = { 0x0330, PIC_UPPER | PIC_LOWER, }, + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = { 0x0210, PIC_UPPER | PIC_LOWER, }, + [C(RESULT_MISS)] = { 0x0320, PIC_UPPER | PIC_LOWER, }, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(DTLB)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { 0x0b08, PIC_UPPER | PIC_LOWER, }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(ITLB)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { 0xb04, PIC_UPPER | PIC_LOWER, }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, +[C(BPU)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = { CACHE_OP_UNSUPPORTED }, + [C(RESULT_MISS)] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = { CACHE_OP_UNSUPPORTED }, + [ C(RESULT_MISS) ] = { CACHE_OP_UNSUPPORTED }, + }, +}, +}; + +static const struct sparc_pmu niagara2_pmu = { + .event_map = niagara2_event_map, + .cache_map = &niagara2_cache_map, + .max_events = ARRAY_SIZE(niagara2_perfmon_event_map), + .upper_shift = 19, + .lower_shift = 6, + .event_mask = 0xfff, + .hv_bit = 0x8, + .irq_bit = 0x30, + .upper_nop = 0x220, + .lower_nop = 0x220, +}; + +static const struct sparc_pmu *sparc_pmu __read_mostly; + +static u64 event_encoding(u64 event_id, int idx) +{ + if (idx == PIC_UPPER_INDEX) + event_id <<= sparc_pmu->upper_shift; + else + event_id <<= sparc_pmu->lower_shift; + return event_id; +} + +static u64 mask_for_index(int idx) +{ + return event_encoding(sparc_pmu->event_mask, idx); +} + +static u64 nop_for_index(int idx) +{ + return event_encoding(idx == PIC_UPPER_INDEX ? + sparc_pmu->upper_nop : + sparc_pmu->lower_nop, idx); +} + +static inline void sparc_pmu_enable_event(struct cpu_hw_events *cpuc, struct hw_perf_event *hwc, int idx) +{ + u64 val, mask = mask_for_index(idx); + + val = cpuc->pcr; + val &= ~mask; + val |= hwc->config; + cpuc->pcr = val; + + pcr_ops->write(cpuc->pcr); +} + +static inline void sparc_pmu_disable_event(struct cpu_hw_events *cpuc, struct hw_perf_event *hwc, int idx) +{ + u64 mask = mask_for_index(idx); + u64 nop = nop_for_index(idx); + u64 val; + + val = cpuc->pcr; + val &= ~mask; + val |= nop; + cpuc->pcr = val; + + pcr_ops->write(cpuc->pcr); +} + +void hw_perf_enable(void) +{ + struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + u64 val; + int i; + + if (cpuc->enabled) + return; + + cpuc->enabled = 1; + barrier(); + + val = cpuc->pcr; + + for (i = 0; i < MAX_HWEVENTS; i++) { + struct perf_event *cp = cpuc->events[i]; + struct hw_perf_event *hwc; + + if (!cp) + continue; + hwc = &cp->hw; + val |= hwc->config_base; + } + + cpuc->pcr = val; + + pcr_ops->write(cpuc->pcr); +} + +void hw_perf_disable(void) +{ + struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + u64 val; + + if (!cpuc->enabled) + return; + + cpuc->enabled = 0; + + val = cpuc->pcr; + val &= ~(PCR_UTRACE | PCR_STRACE | + sparc_pmu->hv_bit | sparc_pmu->irq_bit); + cpuc->pcr = val; + + pcr_ops->write(cpuc->pcr); +} + +static u32 read_pmc(int idx) +{ + u64 val; + + read_pic(val); + if (idx == PIC_UPPER_INDEX) + val >>= 32; + + return val & 0xffffffff; +} + +static void write_pmc(int idx, u64 val) +{ + u64 shift, mask, pic; + + shift = 0; + if (idx == PIC_UPPER_INDEX) + shift = 32; + + mask = ((u64) 0xffffffff) << shift; + val <<= shift; + + read_pic(pic); + pic &= ~mask; + pic |= val; + write_pic(pic); +} + +static int sparc_perf_event_set_period(struct perf_event *event, + struct hw_perf_event *hwc, int idx) +{ + s64 left = atomic64_read(&hwc->period_left); + s64 period = hwc->sample_period; + int ret = 0; + + if (unlikely(left <= -period)) { + left = period; + atomic64_set(&hwc->period_left, left); + hwc->last_period = period; + ret = 1; + } + + if (unlikely(left <= 0)) { + left += period; + atomic64_set(&hwc->period_left, left); + hwc->last_period = period; + ret = 1; + } + if (left > MAX_PERIOD) + left = MAX_PERIOD; + + atomic64_set(&hwc->prev_count, (u64)-left); + + write_pmc(idx, (u64)(-left) & 0xffffffff); + + perf_event_update_userpage(event); + + return ret; +} + +static int sparc_pmu_enable(struct perf_event *event) +{ + struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct hw_perf_event *hwc = &event->hw; + int idx = hwc->idx; + + if (test_and_set_bit(idx, cpuc->used_mask)) + return -EAGAIN; + + sparc_pmu_disable_event(cpuc, hwc, idx); + + cpuc->events[idx] = event; + set_bit(idx, cpuc->active_mask); + + sparc_perf_event_set_period(event, hwc, idx); + sparc_pmu_enable_event(cpuc, hwc, idx); + perf_event_update_userpage(event); + return 0; +} + +static u64 sparc_perf_event_update(struct perf_event *event, + struct hw_perf_event *hwc, int idx) +{ + int shift = 64 - 32; + u64 prev_raw_count, new_raw_count; + s64 delta; + +again: + prev_raw_count = atomic64_read(&hwc->prev_count); + new_raw_count = read_pmc(idx); + + if (atomic64_cmpxchg(&hwc->prev_count, prev_raw_count, + new_raw_count) != prev_raw_count) + goto again; + + delta = (new_raw_count << shift) - (prev_raw_count << shift); + delta >>= shift; + + atomic64_add(delta, &event->count); + atomic64_sub(delta, &hwc->period_left); + + return new_raw_count; +} + +static void sparc_pmu_disable(struct perf_event *event) +{ + struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct hw_perf_event *hwc = &event->hw; + int idx = hwc->idx; + + clear_bit(idx, cpuc->active_mask); + sparc_pmu_disable_event(cpuc, hwc, idx); + + barrier(); + + sparc_perf_event_update(event, hwc, idx); + cpuc->events[idx] = NULL; + clear_bit(idx, cpuc->used_mask); + + perf_event_update_userpage(event); +} + +static void sparc_pmu_read(struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + + sparc_perf_event_update(event, hwc, hwc->idx); +} + +static void sparc_pmu_unthrottle(struct perf_event *event) +{ + struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct hw_perf_event *hwc = &event->hw; + + sparc_pmu_enable_event(cpuc, hwc, hwc->idx); +} + +static atomic_t active_events = ATOMIC_INIT(0); +static DEFINE_MUTEX(pmc_grab_mutex); + +static void perf_stop_nmi_watchdog(void *unused) +{ + struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + + stop_nmi_watchdog(NULL); + cpuc->pcr = pcr_ops->read(); +} + +void perf_event_grab_pmc(void) +{ + if (atomic_inc_not_zero(&active_events)) + return; + + mutex_lock(&pmc_grab_mutex); + if (atomic_read(&active_events) == 0) { + if (atomic_read(&nmi_active) > 0) { + on_each_cpu(perf_stop_nmi_watchdog, NULL, 1); + BUG_ON(atomic_read(&nmi_active) != 0); + } + atomic_inc(&active_events); + } + mutex_unlock(&pmc_grab_mutex); +} + +void perf_event_release_pmc(void) +{ + if (atomic_dec_and_mutex_lock(&active_events, &pmc_grab_mutex)) { + if (atomic_read(&nmi_active) == 0) + on_each_cpu(start_nmi_watchdog, NULL, 1); + mutex_unlock(&pmc_grab_mutex); + } +} + +static const struct perf_event_map *sparc_map_cache_event(u64 config) +{ + unsigned int cache_type, cache_op, cache_result; + const struct perf_event_map *pmap; + + if (!sparc_pmu->cache_map) + return ERR_PTR(-ENOENT); + + cache_type = (config >> 0) & 0xff; + if (cache_type >= PERF_COUNT_HW_CACHE_MAX) + return ERR_PTR(-EINVAL); + + cache_op = (config >> 8) & 0xff; + if (cache_op >= PERF_COUNT_HW_CACHE_OP_MAX) + return ERR_PTR(-EINVAL); + + cache_result = (config >> 16) & 0xff; + if (cache_result >= PERF_COUNT_HW_CACHE_RESULT_MAX) + return ERR_PTR(-EINVAL); + + pmap = &((*sparc_pmu->cache_map)[cache_type][cache_op][cache_result]); + + if (pmap->encoding == CACHE_OP_UNSUPPORTED) + return ERR_PTR(-ENOENT); + + if (pmap->encoding == CACHE_OP_NONSENSE) + return ERR_PTR(-EINVAL); + + return pmap; +} + +static void hw_perf_event_destroy(struct perf_event *event) +{ + perf_event_release_pmc(); +} + +/* Make sure all events can be scheduled into the hardware at + * the same time. This is simplified by the fact that we only + * need to support 2 simultaneous HW events. + */ +static int sparc_check_constraints(unsigned long *events, int n_ev) +{ + if (n_ev <= perf_max_events) { + u8 msk1, msk2; + u16 dummy; + + if (n_ev == 1) + return 0; + BUG_ON(n_ev != 2); + perf_event_decode(events[0], &dummy, &msk1); + perf_event_decode(events[1], &dummy, &msk2); + + /* If both events can go on any counter, OK. */ + if (msk1 == (PIC_UPPER | PIC_LOWER) && + msk2 == (PIC_UPPER | PIC_LOWER)) + return 0; + + /* If one event is limited to a specific counter, + * and the other can go on both, OK. + */ + if ((msk1 == PIC_UPPER || msk1 == PIC_LOWER) && + msk2 == (PIC_UPPER | PIC_LOWER)) + return 0; + if ((msk2 == PIC_UPPER || msk2 == PIC_LOWER) && + msk1 == (PIC_UPPER | PIC_LOWER)) + return 0; + + /* If the events are fixed to different counters, OK. */ + if ((msk1 == PIC_UPPER && msk2 == PIC_LOWER) || + (msk1 == PIC_LOWER && msk2 == PIC_UPPER)) + return 0; + + /* Otherwise, there is a conflict. */ + } + + return -1; +} + +static int check_excludes(struct perf_event **evts, int n_prev, int n_new) +{ + int eu = 0, ek = 0, eh = 0; + struct perf_event *event; + int i, n, first; + + n = n_prev + n_new; + if (n <= 1) + return 0; + + first = 1; + for (i = 0; i < n; i++) { + event = evts[i]; + if (first) { + eu = event->attr.exclude_user; + ek = event->attr.exclude_kernel; + eh = event->attr.exclude_hv; + first = 0; + } else if (event->attr.exclude_user != eu || + event->attr.exclude_kernel != ek || + event->attr.exclude_hv != eh) { + return -EAGAIN; + } + } + + return 0; +} + +static int collect_events(struct perf_event *group, int max_count, + struct perf_event *evts[], unsigned long *events) +{ + struct perf_event *event; + int n = 0; + + if (!is_software_event(group)) { + if (n >= max_count) + return -1; + evts[n] = group; + events[n++] = group->hw.event_base; + } + list_for_each_entry(event, &group->sibling_list, group_entry) { + if (!is_software_event(event) && + event->state != PERF_EVENT_STATE_OFF) { + if (n >= max_count) + return -1; + evts[n] = event; + events[n++] = event->hw.event_base; + } + } + return n; +} + +static int __hw_perf_event_init(struct perf_event *event) +{ + struct perf_event_attr *attr = &event->attr; + struct perf_event *evts[MAX_HWEVENTS]; + struct hw_perf_event *hwc = &event->hw; + unsigned long events[MAX_HWEVENTS]; + const struct perf_event_map *pmap; + u64 enc; + int n; + + if (atomic_read(&nmi_active) < 0) + return -ENODEV; + + if (attr->type == PERF_TYPE_HARDWARE) { + if (attr->config >= sparc_pmu->max_events) + return -EINVAL; + pmap = sparc_pmu->event_map(attr->config); + } else if (attr->type == PERF_TYPE_HW_CACHE) { + pmap = sparc_map_cache_event(attr->config); + if (IS_ERR(pmap)) + return PTR_ERR(pmap); + } else + return -EOPNOTSUPP; + + /* We save the enable bits in the config_base. So to + * turn off sampling just write 'config', and to enable + * things write 'config | config_base'. + */ + hwc->config_base = sparc_pmu->irq_bit; + if (!attr->exclude_user) + hwc->config_base |= PCR_UTRACE; + if (!attr->exclude_kernel) + hwc->config_base |= PCR_STRACE; + if (!attr->exclude_hv) + hwc->config_base |= sparc_pmu->hv_bit; + + hwc->event_base = perf_event_encode(pmap); + + enc = pmap->encoding; + + n = 0; + if (event->group_leader != event) { + n = collect_events(event->group_leader, + perf_max_events - 1, + evts, events); + if (n < 0) + return -EINVAL; + } + events[n] = hwc->event_base; + evts[n] = event; + + if (check_excludes(evts, n, 1)) + return -EINVAL; + + if (sparc_check_constraints(events, n + 1)) + return -EINVAL; + + /* Try to do all error checking before this point, as unwinding + * state after grabbing the PMC is difficult. + */ + perf_event_grab_pmc(); + event->destroy = hw_perf_event_destroy; + + if (!hwc->sample_period) { + hwc->sample_period = MAX_PERIOD; + hwc->last_period = hwc->sample_period; + atomic64_set(&hwc->period_left, hwc->sample_period); + } + + if (pmap->pic_mask & PIC_UPPER) { + hwc->idx = PIC_UPPER_INDEX; + enc <<= sparc_pmu->upper_shift; + } else { + hwc->idx = PIC_LOWER_INDEX; + enc <<= sparc_pmu->lower_shift; + } + + hwc->config |= enc; + return 0; +} + +static const struct pmu pmu = { + .enable = sparc_pmu_enable, + .disable = sparc_pmu_disable, + .read = sparc_pmu_read, + .unthrottle = sparc_pmu_unthrottle, +}; + +const struct pmu *hw_perf_event_init(struct perf_event *event) +{ + int err = __hw_perf_event_init(event); + + if (err) + return ERR_PTR(err); + return &pmu; +} + +void perf_event_print_debug(void) +{ + unsigned long flags; + u64 pcr, pic; + int cpu; + + if (!sparc_pmu) + return; + + local_irq_save(flags); + + cpu = smp_processor_id(); + + pcr = pcr_ops->read(); + read_pic(pic); + + pr_info("\n"); + pr_info("CPU#%d: PCR[%016llx] PIC[%016llx]\n", + cpu, pcr, pic); + + local_irq_restore(flags); +} + +static int __kprobes perf_event_nmi_handler(struct notifier_block *self, + unsigned long cmd, void *__args) +{ + struct die_args *args = __args; + struct perf_sample_data data; + struct cpu_hw_events *cpuc; + struct pt_regs *regs; + int idx; + + if (!atomic_read(&active_events)) + return NOTIFY_DONE; + + switch (cmd) { + case DIE_NMI: + break; + + default: + return NOTIFY_DONE; + } + + regs = args->regs; + + data.addr = 0; + + cpuc = &__get_cpu_var(cpu_hw_events); + for (idx = 0; idx < MAX_HWEVENTS; idx++) { + struct perf_event *event = cpuc->events[idx]; + struct hw_perf_event *hwc; + u64 val; + + if (!test_bit(idx, cpuc->active_mask)) + continue; + hwc = &event->hw; + val = sparc_perf_event_update(event, hwc, idx); + if (val & (1ULL << 31)) + continue; + + data.period = event->hw.last_period; + if (!sparc_perf_event_set_period(event, hwc, idx)) + continue; + + if (perf_event_overflow(event, 1, &data, regs)) + sparc_pmu_disable_event(cpuc, hwc, idx); + } + + return NOTIFY_STOP; +} + +static __read_mostly struct notifier_block perf_event_nmi_notifier = { + .notifier_call = perf_event_nmi_handler, +}; + +static bool __init supported_pmu(void) +{ + if (!strcmp(sparc_pmu_type, "ultra3") || + !strcmp(sparc_pmu_type, "ultra3+") || + !strcmp(sparc_pmu_type, "ultra3i") || + !strcmp(sparc_pmu_type, "ultra4+")) { + sparc_pmu = &ultra3_pmu; + return true; + } + if (!strcmp(sparc_pmu_type, "niagara")) { + sparc_pmu = &niagara1_pmu; + return true; + } + if (!strcmp(sparc_pmu_type, "niagara2")) { + sparc_pmu = &niagara2_pmu; + return true; + } + return false; +} + +void __init init_hw_perf_events(void) +{ + pr_info("Performance events: "); + + if (!supported_pmu()) { + pr_cont("No support for PMU type '%s'\n", sparc_pmu_type); + return; + } + + pr_cont("Supported PMU type is '%s'\n", sparc_pmu_type); + + /* All sparc64 PMUs currently have 2 events. But this simple + * driver only supports one active event at a time. + */ + perf_max_events = 1; + + register_die_notifier(&perf_event_nmi_notifier); +} diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c index 16a47ff..9be2af5 100644 --- a/arch/sparc/kernel/setup_32.c +++ b/arch/sparc/kernel/setup_32.c @@ -268,8 +268,6 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_DUMMY_CONSOLE conswitchp = &dummy_con; -#elif defined(CONFIG_PROM_CONSOLE) - conswitchp = &prom_con; #endif boot_flags_init(*cmdline_p); diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c index f2bcfd2..2118033 100644 --- a/arch/sparc/kernel/setup_64.c +++ b/arch/sparc/kernel/setup_64.c @@ -295,8 +295,6 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_DUMMY_CONSOLE conswitchp = &dummy_con; -#elif defined(CONFIG_PROM_CONSOLE) - conswitchp = &prom_con; #endif idprom_init(); diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index 3691907..aa36223 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -1389,8 +1389,8 @@ void smp_send_stop(void) * RETURNS: * Pointer to the allocated area on success, NULL on failure. */ -static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size, - unsigned long align) +static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size, + size_t align) { const unsigned long goal = __pa(MAX_DMA_ADDRESS); #ifdef CONFIG_NEED_MULTIPLE_NODES @@ -1415,127 +1415,70 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size, #endif } -static size_t pcpur_size __initdata; -static void **pcpur_ptrs __initdata; - -static struct page * __init pcpur_get_page(unsigned int cpu, int pageno) +static void __init pcpu_free_bootmem(void *ptr, size_t size) { - size_t off = (size_t)pageno << PAGE_SHIFT; - - if (off >= pcpur_size) - return NULL; - - return virt_to_page(pcpur_ptrs[cpu] + off); + free_bootmem(__pa(ptr), size); } -#define PCPU_CHUNK_SIZE (4UL * 1024UL * 1024UL) - -static void __init pcpu_map_range(unsigned long start, unsigned long end, - struct page *page) +static int __init pcpu_cpu_distance(unsigned int from, unsigned int to) { - unsigned long pfn = page_to_pfn(page); - unsigned long pte_base; - - BUG_ON((pfn<<PAGE_SHIFT)&(PCPU_CHUNK_SIZE - 1UL)); - - pte_base = (_PAGE_VALID | _PAGE_SZ4MB_4U | - _PAGE_CP_4U | _PAGE_CV_4U | - _PAGE_P_4U | _PAGE_W_4U); - if (tlb_type == hypervisor) - pte_base = (_PAGE_VALID | _PAGE_SZ4MB_4V | - _PAGE_CP_4V | _PAGE_CV_4V | - _PAGE_P_4V | _PAGE_W_4V); - - while (start < end) { - pgd_t *pgd = pgd_offset_k(start); - unsigned long this_end; - pud_t *pud; - pmd_t *pmd; - pte_t *pte; - - pud = pud_offset(pgd, start); - if (pud_none(*pud)) { - pmd_t *new; - - new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE); - pud_populate(&init_mm, pud, new); - } - - pmd = pmd_offset(pud, start); - if (!pmd_present(*pmd)) { - pte_t *new; + if (cpu_to_node(from) == cpu_to_node(to)) + return LOCAL_DISTANCE; + else + return REMOTE_DISTANCE; +} - new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE); - pmd_populate_kernel(&init_mm, pmd, new); - } +static void __init pcpu_populate_pte(unsigned long addr) +{ + pgd_t *pgd = pgd_offset_k(addr); + pud_t *pud; + pmd_t *pmd; - pte = pte_offset_kernel(pmd, start); - this_end = (start + PMD_SIZE) & PMD_MASK; - if (this_end > end) - this_end = end; + pud = pud_offset(pgd, addr); + if (pud_none(*pud)) { + pmd_t *new; - while (start < this_end) { - unsigned long paddr = pfn << PAGE_SHIFT; + new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE); + pud_populate(&init_mm, pud, new); + } - pte_val(*pte) = (paddr | pte_base); + pmd = pmd_offset(pud, addr); + if (!pmd_present(*pmd)) { + pte_t *new; - start += PAGE_SIZE; - pte++; - pfn++; - } + new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE); + pmd_populate_kernel(&init_mm, pmd, new); } } void __init setup_per_cpu_areas(void) { - size_t dyn_size, static_size = __per_cpu_end - __per_cpu_start; - static struct vm_struct vm; - unsigned long delta, cpu; - size_t pcpu_unit_size; - size_t ptrs_size; - - pcpur_size = PFN_ALIGN(static_size + PERCPU_MODULE_RESERVE + - PERCPU_DYNAMIC_RESERVE); - dyn_size = pcpur_size - static_size - PERCPU_MODULE_RESERVE; - - - ptrs_size = PFN_ALIGN(nr_cpu_ids * sizeof(pcpur_ptrs[0])); - pcpur_ptrs = alloc_bootmem(ptrs_size); - - for_each_possible_cpu(cpu) { - pcpur_ptrs[cpu] = pcpu_alloc_bootmem(cpu, PCPU_CHUNK_SIZE, - PCPU_CHUNK_SIZE); - - free_bootmem(__pa(pcpur_ptrs[cpu] + pcpur_size), - PCPU_CHUNK_SIZE - pcpur_size); - - memcpy(pcpur_ptrs[cpu], __per_cpu_load, static_size); + unsigned long delta; + unsigned int cpu; + int rc = -EINVAL; + + if (pcpu_chosen_fc != PCPU_FC_PAGE) { + rc = pcpu_embed_first_chunk(PERCPU_MODULE_RESERVE, + PERCPU_DYNAMIC_RESERVE, 4 << 20, + pcpu_cpu_distance, + pcpu_alloc_bootmem, + pcpu_free_bootmem); + if (rc) + pr_warning("PERCPU: %s allocator failed (%d), " + "falling back to page size\n", + pcpu_fc_names[pcpu_chosen_fc], rc); } - - /* allocate address and map */ - vm.flags = VM_ALLOC; - vm.size = nr_cpu_ids * PCPU_CHUNK_SIZE; - vm_area_register_early(&vm, PCPU_CHUNK_SIZE); - - for_each_possible_cpu(cpu) { - unsigned long start = (unsigned long) vm.addr; - unsigned long end; - - start += cpu * PCPU_CHUNK_SIZE; - end = start + PCPU_CHUNK_SIZE; - pcpu_map_range(start, end, virt_to_page(pcpur_ptrs[cpu])); - } - - pcpu_unit_size = pcpu_setup_first_chunk(pcpur_get_page, static_size, - PERCPU_MODULE_RESERVE, dyn_size, - PCPU_CHUNK_SIZE, vm.addr, NULL); - - free_bootmem(__pa(pcpur_ptrs), ptrs_size); + if (rc < 0) + rc = pcpu_page_first_chunk(PERCPU_MODULE_RESERVE, + pcpu_alloc_bootmem, + pcpu_free_bootmem, + pcpu_populate_pte); + if (rc < 0) + panic("cannot initialize percpu area (err=%d)", rc); delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start; - for_each_possible_cpu(cpu) { - __per_cpu_offset(cpu) = delta + cpu * pcpu_unit_size; - } + for_each_possible_cpu(cpu) + __per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu]; /* Setup %g5 for the boot cpu. */ __local_per_cpu_offset = __per_cpu_offset(smp_processor_id()); diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c index f5000a4..04e28b2 100644 --- a/arch/sparc/kernel/sys_sparc32.c +++ b/arch/sparc/kernel/sys_sparc32.c @@ -16,7 +16,6 @@ #include <linux/signal.h> #include <linux/resource.h> #include <linux/times.h> -#include <linux/utsname.h> #include <linux/smp.h> #include <linux/smp_lock.h> #include <linux/sem.h> diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h index 15c2d752..a63c5d2 100644 --- a/arch/sparc/kernel/systbls.h +++ b/arch/sparc/kernel/systbls.h @@ -3,10 +3,11 @@ #include <linux/kernel.h> #include <linux/types.h> -#include <linux/utsname.h> #include <asm/utrap.h> #include <asm/signal.h> +struct new_utsname; + extern asmlinkage unsigned long sys_getpagesize(void); extern asmlinkage unsigned long sparc_brk(unsigned long brk); extern asmlinkage long sparc_pipe(struct pt_regs *regs); diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S index 0418157..0f1658d 100644 --- a/arch/sparc/kernel/systbls_32.S +++ b/arch/sparc/kernel/systbls_32.S @@ -82,5 +82,5 @@ sys_call_table: /*310*/ .long sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate /*315*/ .long sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1 /*320*/ .long sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv -/*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_counter_open +/*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 91b06b7..009825f 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -83,7 +83,7 @@ sys_call_table32: /*310*/ .word compat_sys_utimensat, compat_sys_signalfd, sys_timerfd_create, sys_eventfd, compat_sys_fallocate .word compat_sys_timerfd_settime, compat_sys_timerfd_gettime, compat_sys_signalfd4, sys_eventfd2, sys_epoll_create1 /*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, compat_sys_preadv - .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_counter_open + .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open #endif /* CONFIG_COMPAT */ @@ -158,4 +158,4 @@ sys_call_table: /*310*/ .word sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate .word sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1 /*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv - .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_counter_open + .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S index fcbbd00..4e59925 100644 --- a/arch/sparc/kernel/vmlinux.lds.S +++ b/arch/sparc/kernel/vmlinux.lds.S @@ -51,70 +51,27 @@ SECTIONS _etext = .; RO_DATA(PAGE_SIZE) - .data : { - DATA_DATA - CONSTRUCTORS - } .data1 : { *(.data1) } - . = ALIGN(SMP_CACHE_BYTES); - .data.cacheline_aligned : { - *(.data.cacheline_aligned) - } - . = ALIGN(SMP_CACHE_BYTES); - .data.read_mostly : { - *(.data.read_mostly) - } + RW_DATA_SECTION(SMP_CACHE_BYTES, 0, THREAD_SIZE) + /* End of data section */ _edata = .; - /* init_task */ - . = ALIGN(THREAD_SIZE); - .data.init_task : { - *(.data.init_task) - } .fixup : { __start___fixup = .; *(.fixup) __stop___fixup = .; } - . = ALIGN(16); - __ex_table : { - __start___ex_table = .; - *(__ex_table) - __stop___ex_table = .; - } + EXCEPTION_TABLE(16) NOTES . = ALIGN(PAGE_SIZE); - .init.text : { - __init_begin = .; - _sinittext = .; - INIT_TEXT - _einittext = .; - } + __init_begin = ALIGN(PAGE_SIZE); + INIT_TEXT_SECTION(PAGE_SIZE) __init_text_end = .; - .init.data : { - INIT_DATA - } - . = ALIGN(16); - .init.setup : { - __setup_start = .; - *(.init.setup) - __setup_end = .; - } - .initcall.init : { - __initcall_start = .; - INITCALLS - __initcall_end = .; - } - .con_initcall.init : { - __con_initcall_start = .; - *(.con_initcall.init) - __con_initcall_end = .; - } - SECURITY_INIT + INIT_DATA_SECTION(16) . = ALIGN(4); .tsb_ldquad_phys_patch : { @@ -146,37 +103,15 @@ SECTIONS __sun4v_2insn_patch_end = .; } -#ifdef CONFIG_BLK_DEV_INITRD - . = ALIGN(PAGE_SIZE); - .init.ramfs : { - __initramfs_start = .; - *(.init.ramfs) - __initramfs_end = .; - } -#endif - PERCPU(PAGE_SIZE) . = ALIGN(PAGE_SIZE); __init_end = .; - __bss_start = .; - .sbss : { - *(.sbss) - *(.scommon) - } - .bss : { - *(.dynbss) - *(.bss) - *(COMMON) - } + BSS_SECTION(0, 0, 0) _end = . ; - /DISCARD/ : { - EXIT_TEXT - EXIT_DATA - *(.exitcall.exit) - } - STABS_DEBUG DWARF_DEBUG + + DISCARDS } diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index 54114ad..dc7c3b17a 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -472,7 +472,7 @@ void __init mem_init(void) reservedpages++; printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init, %ldk highmem)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), num_physpages << (PAGE_SHIFT - 10), codepages << (PAGE_SHIFT-10), reservedpages << (PAGE_SHIFT - 10), diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index a70a5e1..1886d37 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -265,7 +265,7 @@ static void flush_dcache(unsigned long pfn) struct page *page; page = pfn_to_page(pfn); - if (page && page_mapping(page)) { + if (page) { unsigned long pg_flags; pg_flags = page->flags; diff --git a/arch/sparc/oprofile/init.c b/arch/sparc/oprofile/init.c index f97cb8b..f9024bc 100644 --- a/arch/sparc/oprofile/init.c +++ b/arch/sparc/oprofile/init.c @@ -11,6 +11,7 @@ #include <linux/oprofile.h> #include <linux/errno.h> #include <linux/init.h> +#include <linux/param.h> /* for HZ */ #ifdef CONFIG_SPARC64 #include <linux/notifier.h> |
