diff options
Diffstat (limited to 'arch')
728 files changed, 10366 insertions, 12895 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 1455579..99f0e17 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -157,9 +157,6 @@ config ARCH_USE_BUILTIN_BSWAP instructions should set this. And it shouldn't hurt to set it on architectures that don't have such instructions. -config HAVE_SYSCALL_WRAPPERS - bool - config KRETPROBES def_bool y depends on KPROBES && HAVE_KRETPROBES diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 8a33ba0..8629127 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -4,7 +4,6 @@ config ALPHA select HAVE_AOUT select HAVE_IDE select HAVE_OPROFILE - select HAVE_SYSCALL_WRAPPERS select HAVE_PCSPKR_PLATFORM select HAVE_PERF_EVENTS select HAVE_DMA_ATTRS diff --git a/arch/alpha/include/asm/linkage.h b/arch/alpha/include/asm/linkage.h index 291c2d0..7cfd06e 100644 --- a/arch/alpha/include/asm/linkage.h +++ b/arch/alpha/include/asm/linkage.h @@ -1,6 +1,8 @@ #ifndef __ASM_LINKAGE_H #define __ASM_LINKAGE_H -/* Nothing to see here... */ +#define cond_syscall(x) asm(".weak\t" #x "\n" #x " = sys_ni_syscall") +#define SYSCALL_ALIAS(alias, name) \ + asm ( #alias " = " #name "\n\t.globl " #alias) #endif diff --git a/arch/alpha/include/asm/thread_info.h b/arch/alpha/include/asm/thread_info.h index 1f8c729..52cd2a4 100644 --- a/arch/alpha/include/asm/thread_info.h +++ b/arch/alpha/include/asm/thread_info.h @@ -95,8 +95,6 @@ register struct thread_info *__current_thread_info __asm__("$8"); #define TS_POLLING 0x0010 /* idle task polling need_resched, skip sending interrupt */ -#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING) - #ifndef __ASSEMBLY__ #define HAVE_SET_RESTORE_SIGMASK 1 static inline void set_restore_sigmask(void) diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h index 6d6fe7a..43baee1 100644 --- a/arch/alpha/include/asm/unistd.h +++ b/arch/alpha/include/asm/unistd.h @@ -18,16 +18,4 @@ #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_CLONE -/* "Conditional" syscalls. What we want is - - __attribute__((weak,alias("sys_ni_syscall"))) - - but that raises the problem of what type to give the symbol. If we use - a prototype, it'll conflict with the definition given in this file and - others. If we use __typeof, we discover that not all symbols actually - have declarations. If we use no prototype, then we get warnings from - -Wstrict-prototypes. Ho hum. */ - -#define cond_syscall(x) asm(".weak\t" #x "\n" #x " = sys_ni_syscall") - #endif /* _ALPHA_UNISTD_H */ diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index 63d27fb..ab80a80 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -46,25 +46,6 @@ void (*pm_power_off)(void) = machine_power_off; EXPORT_SYMBOL(pm_power_off); -void -cpu_idle(void) -{ - current_thread_info()->status |= TS_POLLING; - - while (1) { - /* FIXME -- EV6 and LCA45 know how to power down - the CPU. */ - - rcu_idle_enter(); - while (!need_resched()) - cpu_relax(); - - rcu_idle_exit(); - schedule_preempt_disabled(); - } -} - - struct halt_info { int mode; char *restart_cmd; @@ -194,6 +175,7 @@ machine_power_off(void) void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_DEFAULT); dik_show_regs(regs, NULL); } diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index 9603bc2..7b60834 100644 --- a/arch/alpha/kernel/smp.c +++ b/arch/alpha/kernel/smp.c @@ -167,8 +167,7 @@ smp_callin(void) cpuid, current, current->active_mm)); preempt_disable(); - /* Do nothing. */ - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } /* Wait until hwrpb->txrdy is clear for cpu. Return -1 on timeout. */ diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c index 1383f86..1d4aabf 100644 --- a/arch/alpha/kernel/sys_nautilus.c +++ b/arch/alpha/kernel/sys_nautilus.c @@ -185,7 +185,6 @@ nautilus_machine_check(unsigned long vector, unsigned long la_ptr) mb(); } -extern void free_reserved_mem(void *, void *); extern void pcibios_claim_one_bus(struct pci_bus *); static struct resource irongate_io = { @@ -239,8 +238,8 @@ nautilus_init_pci(void) if (pci_mem < memtop) memtop = pci_mem; if (memtop > alpha_mv.min_mem_address) { - free_reserved_mem(__va(alpha_mv.min_mem_address), - __va(memtop)); + free_reserved_area((unsigned long)__va(alpha_mv.min_mem_address), + (unsigned long)__va(memtop), 0, NULL); printk("nautilus_init_pci: %ldk freed\n", (memtop - alpha_mv.min_mem_address) >> 10); } diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c index 4037461..affccb9 100644 --- a/arch/alpha/kernel/traps.c +++ b/arch/alpha/kernel/traps.c @@ -169,13 +169,6 @@ void show_stack(struct task_struct *task, unsigned long *sp) dik_show_trace(sp); } -void dump_stack(void) -{ - show_stack(NULL, NULL); -} - -EXPORT_SYMBOL(dump_stack); - void die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15) { diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c index 1ad6ca7..0ba85ee 100644 --- a/arch/alpha/mm/init.c +++ b/arch/alpha/mm/init.c @@ -31,6 +31,7 @@ #include <asm/console.h> #include <asm/tlb.h> #include <asm/setup.h> +#include <asm/sections.h> extern void die_if_kernel(char *,struct pt_regs *,long); @@ -281,8 +282,6 @@ printk_memory_info(void) { unsigned long codesize, reservedpages, datasize, initsize, tmp; extern int page_is_ram(unsigned long) __init; - extern char _text, _etext, _data, _edata; - extern char __init_begin, __init_end; /* printk all informations */ reservedpages = 0; @@ -318,32 +317,15 @@ mem_init(void) #endif /* CONFIG_DISCONTIGMEM */ void -free_reserved_mem(void *start, void *end) -{ - void *__start = start; - for (; __start < end; __start += PAGE_SIZE) { - ClearPageReserved(virt_to_page(__start)); - init_page_count(virt_to_page(__start)); - free_page((long)__start); - totalram_pages++; - } -} - -void free_initmem(void) { - extern char __init_begin, __init_end; - - free_reserved_mem(&__init_begin, &__init_end); - printk ("Freeing unused kernel memory: %ldk freed\n", - (&__init_end - &__init_begin) >> 10); + free_initmem_default(0); } #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_mem((void *)start, (void *)end); - printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10); + free_reserved_area(start, end, 0, "initrd"); } #endif diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c index 3973ae3..3388504 100644 --- a/arch/alpha/mm/numa.c +++ b/arch/alpha/mm/numa.c @@ -17,6 +17,7 @@ #include <asm/hwrpb.h> #include <asm/pgalloc.h> +#include <asm/sections.h> pg_data_t node_data[MAX_NUMNODES]; EXPORT_SYMBOL(node_data); @@ -325,8 +326,6 @@ void __init mem_init(void) { unsigned long codesize, reservedpages, datasize, initsize, pfn; extern int page_is_ram(unsigned long) __init; - extern char _text, _etext, _data, _edata; - extern char __init_begin, __init_end; unsigned long nid, i; high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT); diff --git a/arch/arc/kernel/disasm.c b/arch/arc/kernel/disasm.c index 2f39028..d14764a 100644 --- a/arch/arc/kernel/disasm.c +++ b/arch/arc/kernel/disasm.c @@ -535,4 +535,4 @@ int __kprobes disasm_next_pc(unsigned long pc, struct pt_regs *regs, return instr.is_branch; } -#endif /* CONFIG_KGDB || CONFIG_MISALIGN_ACCESS || CONFIG_KPROBES */ +#endif /* CONFIG_KGDB || CONFIG_ARC_MISALIGN_ACCESS || CONFIG_KPROBES */ diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c index 0a7531d..cad6685 100644 --- a/arch/arc/kernel/process.c +++ b/arch/arc/kernel/process.c @@ -41,37 +41,12 @@ SYSCALL_DEFINE0(arc_gettls) return task_thread_info(current)->thr_ptr; } -static inline void arch_idle(void) +void arch_cpu_idle(void) { /* sleep, but enable all interrupts before committing */ __asm__("sleep 0x3"); } -void cpu_idle(void) -{ - /* Since we SLEEP in idle loop, TIF_POLLING_NRFLAG can't be set */ - - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - -doze: - local_irq_disable(); - if (!need_resched()) { - arch_idle(); - goto doze; - } else { - local_irq_enable(); - } - - rcu_idle_exit(); - tick_nohz_idle_exit(); - - schedule_preempt_disabled(); - } -} - asmlinkage void ret_from_fork(void); /* Layout of Child kernel mode stack as setup at the end of this function is diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c index 3af3e06..5c7fd60 100644 --- a/arch/arc/kernel/smp.c +++ b/arch/arc/kernel/smp.c @@ -141,7 +141,7 @@ void __cpuinit start_kernel_secondary(void) local_irq_enable(); preempt_disable(); - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } /* diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c index a63ff84..ca0207b 100644 --- a/arch/arc/kernel/stacktrace.c +++ b/arch/arc/kernel/stacktrace.c @@ -220,13 +220,6 @@ void show_stack(struct task_struct *tsk, unsigned long *sp) show_stacktrace(tsk, NULL); } -/* Expected by Rest of kernel code */ -void dump_stack(void) -{ - show_stacktrace(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); - /* Another API expected by schedular, shows up in "ps" as Wait Channel * Ofcourse just returning schedule( ) would be pointless so unwind until * the function is not in schedular code diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c index 7c10873..0aec0198 100644 --- a/arch/arc/kernel/troubleshoot.c +++ b/arch/arc/kernel/troubleshoot.c @@ -71,7 +71,7 @@ void print_task_path_n_nm(struct task_struct *tsk, char *buf) } done: - pr_info("%s, TGID %u\n", path_nm, tsk->tgid); + pr_info("Path: %s\n", path_nm); } EXPORT_SYMBOL(print_task_path_n_nm); @@ -163,6 +163,7 @@ void show_regs(struct pt_regs *regs) return; print_task_path_n_nm(tsk, buf); + show_regs_print_info(KERN_INFO); if (current->thread.cause_code) show_ecr_verbose(regs); diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c index caf797d..727d479 100644 --- a/arch/arc/mm/init.c +++ b/arch/arc/mm/init.c @@ -144,37 +144,18 @@ void __init mem_init(void) PAGES_TO_KB(reserved_pages)); } -static void __init free_init_pages(const char *what, unsigned long begin, - unsigned long end) -{ - unsigned long addr; - - pr_info("Freeing %s: %ldk [%lx] to [%lx]\n", - what, TO_KB(end - begin), begin, end); - - /* need to check that the page we free is not a partial page */ - for (addr = begin; addr + PAGE_SIZE <= end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } -} - /* * free_initmem: Free all the __init memory. */ void __init_refok free_initmem(void) { - free_init_pages("unused kernel memory", - (unsigned long)__init_begin, - (unsigned long)__init_end); + free_initmem_default(0); } #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - free_init_pages("initrd memory", start, end); + free_reserved_area(start, end, 0, "initrd"); } #endif diff --git a/arch/arc/plat-arcfpga/Kconfig b/arch/arc/plat-arcfpga/Kconfig index b41e786..295cefe 100644 --- a/arch/arc/plat-arcfpga/Kconfig +++ b/arch/arc/plat-arcfpga/Kconfig @@ -53,7 +53,7 @@ menuconfig ARC_HAS_BVCI_LAT_UNIT bool "BVCI Bus Latency Unit" depends on ARC_BOARD_ML509 || ARC_BOARD_ANGEL4 help - IP to add artifical latency to BVCI Bus Based FPGA builds. + IP to add artificial latency to BVCI Bus Based FPGA builds. The default latency (even worst case) for FPGA is non-realistic (~10 SDRAM, ~5 SSRAM). diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 1cacda4..006f983 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -15,6 +15,7 @@ config ARM select GENERIC_IRQ_SHOW select GENERIC_PCI_IOMAP select GENERIC_SMP_IDLE_THREAD + select GENERIC_IDLE_POLL_SETUP select GENERIC_STRNCPY_FROM_USER select GENERIC_STRNLEN_USER select HARDIRQS_SW_RESEND @@ -549,6 +550,8 @@ config ARCH_IXP4XX select GENERIC_CLOCKEVENTS select MIGHT_HAVE_PCI select NEED_MACH_IO_H + select USB_EHCI_BIG_ENDIAN_MMIO + select USB_EHCI_BIG_ENDIAN_DESC help Support for Intel's IXP4XX (XScale) family of processors. @@ -2160,7 +2163,6 @@ endmenu menu "CPU Power Management" if ARCH_HAS_CPUFREQ - source "drivers/cpufreq/Kconfig" config CPU_FREQ_IMX @@ -2170,30 +2172,6 @@ config CPU_FREQ_IMX help This enables the CPUfreq driver for i.MX CPUs. -config CPU_FREQ_SA1100 - bool - -config CPU_FREQ_SA1110 - bool - -config CPU_FREQ_INTEGRATOR - tristate "CPUfreq driver for ARM Integrator CPUs" - depends on ARCH_INTEGRATOR && CPU_FREQ - default y - help - This enables the CPUfreq driver for ARM Integrator CPUs. - - For details, take a look at <file:Documentation/cpu-freq>. - - If in doubt, say Y. - -config CPU_FREQ_PXA - bool - depends on CPU_FREQ && ARCH_PXA && PXA25x - default y - select CPU_FREQ_DEFAULT_GOV_USERSPACE - select CPU_FREQ_TABLE - config CPU_FREQ_S3C bool help diff --git a/arch/arm/boot/dts/at91sam9260.dtsi b/arch/arm/boot/dts/at91sam9260.dtsi index cb7bcc5..39253b9 100644 --- a/arch/arm/boot/dts/at91sam9260.dtsi +++ b/arch/arm/boot/dts/at91sam9260.dtsi @@ -322,6 +322,24 @@ }; }; + spi0 { + pinctrl_spi0: spi0-0 { + atmel,pins = + <0 0 0x1 0x0 /* PA0 periph A SPI0_MISO pin */ + 0 1 0x1 0x0 /* PA1 periph A SPI0_MOSI pin */ + 0 2 0x1 0x0>; /* PA2 periph A SPI0_SPCK pin */ + }; + }; + + spi1 { + pinctrl_spi1: spi1-0 { + atmel,pins = + <1 0 0x1 0x0 /* PB0 periph A SPI1_MISO pin */ + 1 1 0x1 0x0 /* PB1 periph A SPI1_MOSI pin */ + 1 2 0x1 0x0>; /* PB2 periph A SPI1_SPCK pin */ + }; + }; + pioA: gpio@fffff400 { compatible = "atmel,at91rm9200-gpio"; reg = <0xfffff400 0x200>; @@ -471,6 +489,28 @@ status = "disabled"; }; + spi0: spi@fffc8000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "atmel,at91rm9200-spi"; + reg = <0xfffc8000 0x200>; + interrupts = <12 4 3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_spi0>; + status = "disabled"; + }; + + spi1: spi@fffcc000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "atmel,at91rm9200-spi"; + reg = <0xfffcc000 0x200>; + interrupts = <13 4 3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_spi1>; + status = "disabled"; + }; + adc0: adc@fffe0000 { compatible = "atmel,at91sam9260-adc"; reg = <0xfffe0000 0x100>; diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi index 271d4de..94b58ab 100644 --- a/arch/arm/boot/dts/at91sam9263.dtsi +++ b/arch/arm/boot/dts/at91sam9263.dtsi @@ -303,6 +303,24 @@ }; }; + spi0 { + pinctrl_spi0: spi0-0 { + atmel,pins = + <0 0 0x2 0x0 /* PA0 periph B SPI0_MISO pin */ + 0 1 0x2 0x0 /* PA1 periph B SPI0_MOSI pin */ + 0 2 0x2 0x0>; /* PA2 periph B SPI0_SPCK pin */ + }; + }; + + spi1 { + pinctrl_spi1: spi1-0 { + atmel,pins = + <1 12 0x1 0x0 /* PB12 periph A SPI1_MISO pin */ + 1 13 0x1 0x0 /* PB13 periph A SPI1_MOSI pin */ + 1 14 0x1 0x0>; /* PB14 periph A SPI1_SPCK pin */ + }; + }; + pioA: gpio@fffff200 { compatible = "atmel,at91rm9200-gpio"; reg = <0xfffff200 0x200>; @@ -462,6 +480,28 @@ reg = <0xfffffd40 0x10>; status = "disabled"; }; + + spi0: spi@fffa4000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "atmel,at91rm9200-spi"; + reg = <0xfffa4000 0x200>; + interrupts = <14 4 3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_spi0>; + status = "disabled"; + }; + + spi1: spi@fffa8000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "atmel,at91rm9200-spi"; + reg = <0xfffa8000 0x200>; + interrupts = <15 4 3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_spi1>; + status = "disabled"; + }; }; nand0: nand@40000000 { diff --git a/arch/arm/boot/dts/at91sam9263ek.dts b/arch/arm/boot/dts/at91sam9263ek.dts index 1eb0872..a14e424 100644 --- a/arch/arm/boot/dts/at91sam9263ek.dts +++ b/arch/arm/boot/dts/at91sam9263ek.dts @@ -79,6 +79,16 @@ }; }; }; + + spi0: spi@fffa4000 { + status = "okay"; + cs-gpios = <&pioA 5 0>, <0>, <0>, <0>; + mtd_dataflash@0 { + compatible = "atmel,at45", "atmel,dataflash"; + spi-max-frequency = <50000000>; + reg = <0>; + }; + }; }; nand0: nand@40000000 { diff --git a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi index da15e83..23d1f46 100644 --- a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi +++ b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi @@ -96,6 +96,16 @@ status = "okay"; pinctrl-0 = <&pinctrl_ssc0_tx>; }; + + spi0: spi@fffc8000 { + status = "okay"; + cs-gpios = <0>, <&pioC 11 0>, <0>, <0>; + mtd_dataflash@0 { + compatible = "atmel,at45", "atmel,dataflash"; + spi-max-frequency = <50000000>; + reg = <1>; + }; + }; }; nand0: nand@40000000 { diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi index 6b1d4ca..cfdf429 100644 --- a/arch/arm/boot/dts/at91sam9g45.dtsi +++ b/arch/arm/boot/dts/at91sam9g45.dtsi @@ -322,6 +322,24 @@ }; }; + spi0 { + pinctrl_spi0: spi0-0 { + atmel,pins = + <1 0 0x1 0x0 /* PB0 periph A SPI0_MISO pin */ + 1 1 0x1 0x0 /* PB1 periph A SPI0_MOSI pin */ + 1 2 0x1 0x0>; /* PB2 periph A SPI0_SPCK pin */ + }; + }; + + spi1 { + pinctrl_spi1: spi1-0 { + atmel,pins = + <1 14 0x1 0x0 /* PB14 periph A SPI1_MISO pin */ + 1 15 0x1 0x0 /* PB15 periph A SPI1_MOSI pin */ + 1 16 0x1 0x0>; /* PB16 periph A SPI1_SPCK pin */ + }; + }; + pioA: gpio@fffff200 { compatible = "atmel,at91rm9200-gpio"; reg = <0xfffff200 0x200>; @@ -531,6 +549,28 @@ reg = <0xfffffd40 0x10>; status = "disabled"; }; + + spi0: spi@fffa4000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "atmel,at91rm9200-spi"; + reg = <0xfffa4000 0x200>; + interrupts = <14 4 3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_spi0>; + status = "disabled"; + }; + + spi1: spi@fffa8000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "atmel,at91rm9200-spi"; + reg = <0xfffa8000 0x200>; + interrupts = <15 4 3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_spi1>; + status = "disabled"; + }; }; nand0: nand@40000000 { diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts index 20c3191..92c52a7 100644 --- a/arch/arm/boot/dts/at91sam9m10g45ek.dts +++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts @@ -102,6 +102,16 @@ }; }; }; + + spi0: spi@fffa4000{ + status = "okay"; + cs-gpios = <&pioB 3 0>, <0>, <0>, <0>; + mtd_dataflash@0 { + compatible = "atmel,at45", "atmel,dataflash"; + spi-max-frequency = <13000000>; + reg = <0>; + }; + }; }; nand0: nand@40000000 { diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi index 7750f98..b2961f1 100644 --- a/arch/arm/boot/dts/at91sam9n12.dtsi +++ b/arch/arm/boot/dts/at91sam9n12.dtsi @@ -261,6 +261,24 @@ }; }; + spi0 { + pinctrl_spi0: spi0-0 { + atmel,pins = + <0 11 0x1 0x0 /* PA11 periph A SPI0_MISO pin */ + 0 12 0x1 0x0 /* PA12 periph A SPI0_MOSI pin */ + 0 13 0x1 0x0>; /* PA13 periph A SPI0_SPCK pin */ + }; + }; + + spi1 { + pinctrl_spi1: spi1-0 { + atmel,pins = + <0 21 0x2 0x0 /* PA21 periph B SPI1_MISO pin */ + 0 22 0x2 0x0 /* PA22 periph B SPI1_MOSI pin */ + 0 23 0x2 0x0>; /* PA23 periph B SPI1_SPCK pin */ + }; + }; + pioA: gpio@fffff400 { compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio"; reg = <0xfffff400 0x200>; @@ -373,6 +391,28 @@ #size-cells = <0>; status = "disabled"; }; + + spi0: spi@f0000000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "atmel,at91rm9200-spi"; + reg = <0xf0000000 0x100>; + interrupts = <13 4 3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_spi0>; + status = "disabled"; + }; + + spi1: spi@f0004000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "atmel,at91rm9200-spi"; + reg = <0xf0004000 0x100>; + interrupts = <14 4 3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_spi1>; + status = "disabled"; + }; }; nand0: nand@40000000 { diff --git a/arch/arm/boot/dts/at91sam9n12ek.dts b/arch/arm/boot/dts/at91sam9n12ek.dts index d400f8d..34c842b 100644 --- a/arch/arm/boot/dts/at91sam9n12ek.dts +++ b/arch/arm/boot/dts/at91sam9n12ek.dts @@ -67,6 +67,16 @@ }; }; }; + + spi0: spi@f0000000 { + status = "okay"; + cs-gpios = <&pioA 14 0>, <0>, <0>, <0>; + m25p80@0 { + compatible = "atmel,at25df321a"; + spi-max-frequency = <50000000>; + reg = <0>; + }; + }; }; nand0: nand@40000000 { diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi index a98c0d5..347b438 100644 --- a/arch/arm/boot/dts/at91sam9x5.dtsi +++ b/arch/arm/boot/dts/at91sam9x5.dtsi @@ -343,6 +343,24 @@ }; }; + spi0 { + pinctrl_spi0: spi0-0 { + atmel,pins = + <0 11 0x1 0x0 /* PA11 periph A SPI0_MISO pin */ + 0 12 0x1 0x0 /* PA12 periph A SPI0_MOSI pin */ + 0 13 0x1 0x0>; /* PA13 periph A SPI0_SPCK pin */ + }; + }; + + spi1 { + pinctrl_spi1: spi1-0 { + atmel,pins = + <0 21 0x2 0x0 /* PA21 periph B SPI1_MISO pin */ + 0 22 0x2 0x0 /* PA22 periph B SPI1_MOSI pin */ + 0 23 0x2 0x0>; /* PA23 periph B SPI1_SPCK pin */ + }; + }; + pioA: gpio@fffff400 { compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio"; reg = <0xfffff400 0x200>; @@ -529,6 +547,28 @@ trigger-value = <0x6>; }; }; + + spi0: spi@f0000000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "atmel,at91rm9200-spi"; + reg = <0xf0000000 0x100>; + interrupts = <13 4 3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_spi0>; + status = "disabled"; + }; + + spi1: spi@f0004000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "atmel,at91rm9200-spi"; + reg = <0xf0004000 0x100>; + interrupts = <14 4 3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_spi1>; + status = "disabled"; + }; }; nand0: nand@40000000 { diff --git a/arch/arm/boot/dts/at91sam9x5ek.dtsi b/arch/arm/boot/dts/at91sam9x5ek.dtsi index 8a7cf1d..09f5e66 100644 --- a/arch/arm/boot/dts/at91sam9x5ek.dtsi +++ b/arch/arm/boot/dts/at91sam9x5ek.dtsi @@ -84,6 +84,16 @@ }; }; }; + + spi0: spi@f0000000 { + status = "okay"; + cs-gpios = <&pioA 14 0>, <0>, <0>, <0>; + m25p80@0 { + compatible = "atmel,at25df321a"; + spi-max-frequency = <50000000>; + reg = <0>; + }; + }; }; usb0: ohci@00600000 { diff --git a/arch/arm/boot/dts/msm8660-surf.dts b/arch/arm/boot/dts/msm8660-surf.dts index 31f2157..67f8670 100644 --- a/arch/arm/boot/dts/msm8660-surf.dts +++ b/arch/arm/boot/dts/msm8660-surf.dts @@ -38,4 +38,10 @@ <0x19c00000 0x1000>; interrupts = <0 195 0x0>; }; + + qcom,ssbi@500000 { + compatible = "qcom,ssbi"; + reg = <0x500000 0x1000>; + qcom,controller-type = "pmic-arbiter"; + }; }; diff --git a/arch/arm/boot/dts/msm8960-cdp.dts b/arch/arm/boot/dts/msm8960-cdp.dts index 9e621b5..c9b09a8 100644 --- a/arch/arm/boot/dts/msm8960-cdp.dts +++ b/arch/arm/boot/dts/msm8960-cdp.dts @@ -38,4 +38,10 @@ <0x16400000 0x1000>; interrupts = <0 154 0x0>; }; + + qcom,ssbi@500000 { + compatible = "qcom,ssbi"; + reg = <0x500000 0x1000>; + qcom,controller-type = "pmic-arbiter"; + }; }; diff --git a/arch/arm/boot/dts/spear1310.dtsi b/arch/arm/boot/dts/spear1310.dtsi index 1513c19..122ae94 100644 --- a/arch/arm/boot/dts/spear1310.dtsi +++ b/arch/arm/boot/dts/spear1310.dtsi @@ -89,7 +89,7 @@ pinmux: pinmux@e0700000 { compatible = "st,spear1310-pinmux"; reg = <0xe0700000 0x1000>; - #gpio-range-cells = <2>; + #gpio-range-cells = <3>; }; apb { @@ -212,7 +212,7 @@ interrupt-controller; gpio-controller; #gpio-cells = <2>; - gpio-ranges = <&pinmux 0 246>; + gpio-ranges = <&pinmux 0 0 246>; status = "disabled"; st-plgpio,ngpio = <246>; diff --git a/arch/arm/boot/dts/spear1340.dtsi b/arch/arm/boot/dts/spear1340.dtsi index 34da11a..c511c47 100644 --- a/arch/arm/boot/dts/spear1340.dtsi +++ b/arch/arm/boot/dts/spear1340.dtsi @@ -63,7 +63,7 @@ pinmux: pinmux@e0700000 { compatible = "st,spear1340-pinmux"; reg = <0xe0700000 0x1000>; - #gpio-range-cells = <2>; + #gpio-range-cells = <3>; }; pwm: pwm@e0180000 { @@ -127,7 +127,7 @@ interrupt-controller; gpio-controller; #gpio-cells = <2>; - gpio-ranges = <&pinmux 0 252>; + gpio-ranges = <&pinmux 0 0 252>; status = "disabled"; st-plgpio,ngpio = <250>; diff --git a/arch/arm/boot/dts/spear310.dtsi b/arch/arm/boot/dts/spear310.dtsi index ab45b8c..9537208 100644 --- a/arch/arm/boot/dts/spear310.dtsi +++ b/arch/arm/boot/dts/spear310.dtsi @@ -25,7 +25,7 @@ pinmux: pinmux@b4000000 { compatible = "st,spear310-pinmux"; reg = <0xb4000000 0x1000>; - #gpio-range-cells = <2>; + #gpio-range-cells = <3>; }; fsmc: flash@44000000 { @@ -102,7 +102,7 @@ interrupt-controller; gpio-controller; #gpio-cells = <2>; - gpio-ranges = <&pinmux 0 102>; + gpio-ranges = <&pinmux 0 0 102>; status = "disabled"; st-plgpio,ngpio = <102>; diff --git a/arch/arm/boot/dts/spear320.dtsi b/arch/arm/boot/dts/spear320.dtsi index caa5520..ffea342 100644 --- a/arch/arm/boot/dts/spear320.dtsi +++ b/arch/arm/boot/dts/spear320.dtsi @@ -24,7 +24,7 @@ pinmux: pinmux@b3000000 { compatible = "st,spear320-pinmux"; reg = <0xb3000000 0x1000>; - #gpio-range-cells = <2>; + #gpio-range-cells = <3>; }; clcd@90000000 { @@ -130,7 +130,7 @@ interrupt-controller; gpio-controller; #gpio-cells = <2>; - gpio-ranges = <&pinmux 0 102>; + gpio-ranges = <&pinmux 0 0 102>; status = "disabled"; st-plgpio,ngpio = <102>; diff --git a/arch/arm/boot/dts/vt8500-bv07.dts b/arch/arm/boot/dts/vt8500-bv07.dts index 567cf4e..877b33a 100644 --- a/arch/arm/boot/dts/vt8500-bv07.dts +++ b/arch/arm/boot/dts/vt8500-bv07.dts @@ -11,26 +11,22 @@ / { model = "Benign BV07 Netbook"; +}; - /* - * Display node is based on Sascha Hauer's patch on dri-devel. - * Added a bpp property to calculate the size of the framebuffer - * until the binding is formalized. - */ - display: display@0 { - modes { - mode0: mode@0 { - hactive = <800>; - vactive = <480>; - hback-porch = <88>; - hfront-porch = <40>; - hsync-len = <0>; - vback-porch = <32>; - vfront-porch = <11>; - vsync-len = <1>; - clock = <0>; /* unused but required */ - bpp = <16>; /* non-standard but required */ - }; +&fb { + bits-per-pixel = <16>; + display-timings { + native-mode = <&timing0>; + timing0: 800x480 { + clock-frequency = <0>; /* unused but required */ + hactive = <800>; + vactive = <480>; + hfront-porch = <40>; + hback-porch = <88>; + hsync-len = <0>; + vback-porch = <32>; + vfront-porch = <11>; + vsync-len = <1>; }; }; }; diff --git a/arch/arm/boot/dts/vt8500.dtsi b/arch/arm/boot/dts/vt8500.dtsi index cf31ced..68c8dc6 100644 --- a/arch/arm/boot/dts/vt8500.dtsi +++ b/arch/arm/boot/dts/vt8500.dtsi @@ -98,12 +98,10 @@ interrupts = <43>; }; - fb@d800e400 { + fb: fb@d8050800 { compatible = "via,vt8500-fb"; reg = <0xd800e400 0x400>; interrupts = <12>; - display = <&display>; - default-mode = <&mode0>; }; ge_rops@d8050400 { diff --git a/arch/arm/boot/dts/wm8505-ref.dts b/arch/arm/boot/dts/wm8505-ref.dts index fd4e248..edd2cec 100644 --- a/arch/arm/boot/dts/wm8505-ref.dts +++ b/arch/arm/boot/dts/wm8505-ref.dts @@ -11,26 +11,22 @@ / { model = "Wondermedia WM8505 Netbook"; +}; - /* - * Display node is based on Sascha Hauer's patch on dri-devel. - * Added a bpp property to calculate the size of the framebuffer - * until the binding is formalized. - */ - display: display@0 { - modes { - mode0: mode@0 { - hactive = <800>; - vactive = <480>; - hback-porch = <88>; - hfront-porch = <40>; - hsync-len = <0>; - vback-porch = <32>; - vfront-porch = <11>; - vsync-len = <1>; - clock = <0>; /* unused but required */ - bpp = <32>; /* non-standard but required */ - }; +&fb { + bits-per-pixel = <32>; + display-timings { + native-mode = <&timing0>; + timing0: 800x480 { + clock-frequency = <0>; /* unused but required */ + hactive = <800>; + vactive = <480>; + hfront-porch = <40>; + hback-porch = <88>; + hsync-len = <0>; + vback-porch = <32>; + vfront-porch = <11>; + vsync-len = <1>; }; }; }; diff --git a/arch/arm/boot/dts/wm8505.dtsi b/arch/arm/boot/dts/wm8505.dtsi index e74a1c0..bcf668d 100644 --- a/arch/arm/boot/dts/wm8505.dtsi +++ b/arch/arm/boot/dts/wm8505.dtsi @@ -128,11 +128,9 @@ interrupts = <0>; }; - fb@d8050800 { + fb: fb@d8050800 { compatible = "wm,wm8505-fb"; reg = <0xd8050800 0x200>; - display = <&display>; - default-mode = <&mode0>; }; ge_rops@d8050400 { diff --git a/arch/arm/boot/dts/wm8650-mid.dts b/arch/arm/boot/dts/wm8650-mid.dts index cefd938..61671a0 100644 --- a/arch/arm/boot/dts/wm8650-mid.dts +++ b/arch/arm/boot/dts/wm8650-mid.dts @@ -11,26 +11,24 @@ / { model = "Wondermedia WM8650-MID Tablet"; +}; + +&fb { + bits-per-pixel = <16>; - /* - * Display node is based on Sascha Hauer's patch on dri-devel. - * Added a bpp property to calculate the size of the framebuffer - * until the binding is formalized. - */ - display: display@0 { - modes { - mode0: mode@0 { - hactive = <800>; - vactive = <480>; - hback-porch = <88>; - hfront-porch = <40>; - hsync-len = <0>; - vback-porch = <32>; - vfront-porch = <11>; - vsync-len = <1>; - clock = <0>; /* unused but required */ - bpp = <16>; /* non-standard but required */ - }; + display-timings { + native-mode = <&timing0>; + timing0: 800x480 { + clock-frequency = <0>; /* unused but required */ + hactive = <800>; + vactive = <480>; + hfront-porch = <40>; + hback-porch = <88>; + hsync-len = <0>; + vback-porch = <32>; + vfront-porch = <11>; + vsync-len = <1>; }; }; }; + diff --git a/arch/arm/boot/dts/wm8650.dtsi b/arch/arm/boot/dts/wm8650.dtsi index db3c0a1..9313407 100644 --- a/arch/arm/boot/dts/wm8650.dtsi +++ b/arch/arm/boot/dts/wm8650.dtsi @@ -128,11 +128,9 @@ interrupts = <43>; }; - fb@d8050800 { + fb: fb@d8050800 { compatible = "wm,wm8505-fb"; reg = <0xd8050800 0x200>; - display = <&display>; - default-mode = <&mode0>; }; ge_rops@d8050400 { diff --git a/arch/arm/boot/dts/wm8850-w70v2.dts b/arch/arm/boot/dts/wm8850-w70v2.dts index fcc660c..32d2253 100644 --- a/arch/arm/boot/dts/wm8850-w70v2.dts +++ b/arch/arm/boot/dts/wm8850-w70v2.dts @@ -15,28 +15,6 @@ / { model = "Wondermedia WM8850-W70v2 Tablet"; - /* - * Display node is based on Sascha Hauer's patch on dri-devel. - * Added a bpp property to calculate the size of the framebuffer - * until the binding is formalized. - */ - display: display@0 { - modes { - mode0: mode@0 { - hactive = <800>; - vactive = <480>; - hback-porch = <88>; - hfront-porch = <40>; - hsync-len = <0>; - vback-porch = <32>; - vfront-porch = <11>; - vsync-len = <1>; - clock = <0>; /* unused but required */ - bpp = <16>; /* non-standard but required */ - }; - }; - }; - backlight { compatible = "pwm-backlight"; pwms = <&pwm 0 50000 1>; /* duty inverted */ @@ -45,3 +23,21 @@ default-brightness-level = <5>; }; }; + +&fb { + bits-per-pixel = <16>; + display-timings { + native-mode = <&timing0>; + timing0: 800x480 { + clock-frequency = <0>; /* unused but required */ + hactive = <800>; + vactive = <480>; + hfront-porch = <40>; + hback-porch = <88>; + hsync-len = <0>; + vback-porch = <32>; + vfront-porch = <11>; + vsync-len = <1>; + }; + }; +}; diff --git a/arch/arm/boot/dts/wm8850.dtsi b/arch/arm/boot/dts/wm8850.dtsi index e8cbfdc..7149cd1 100644 --- a/arch/arm/boot/dts/wm8850.dtsi +++ b/arch/arm/boot/dts/wm8850.dtsi @@ -135,11 +135,9 @@ }; }; - fb@d8051700 { + fb: fb@d8051700 { compatible = "wm,wm8505-fb"; reg = <0xd8051700 0x200>; - display = <&display>; - default-mode = <&mode0>; }; ge_rops@d8050400 { diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index e36b010..088d6c1 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -188,6 +188,7 @@ CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_MXC=y CONFIG_USB_CHIPIDEA=y CONFIG_USB_CHIPIDEA_HOST=y +CONFIG_USB_PHY=y CONFIG_USB_MXS_PHY=y CONFIG_USB_STORAGE=y CONFIG_MMC=y diff --git a/arch/arm/configs/kirkwood_defconfig b/arch/arm/configs/kirkwood_defconfig index 13482ea..93f3794 100644 --- a/arch/arm/configs/kirkwood_defconfig +++ b/arch/arm/configs/kirkwood_defconfig @@ -56,7 +56,6 @@ CONFIG_AEABI=y CONFIG_ZBOOT_ROM_TEXT=0x0 CONFIG_ZBOOT_ROM_BSS=0x0 CONFIG_CPU_IDLE=y -CONFIG_CPU_IDLE_KIRKWOOD=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y diff --git a/arch/arm/configs/lpc32xx_defconfig b/arch/arm/configs/lpc32xx_defconfig index 92386b2..afa7249f 100644 --- a/arch/arm/configs/lpc32xx_defconfig +++ b/arch/arm/configs/lpc32xx_defconfig @@ -134,6 +134,7 @@ CONFIG_SND_DEBUG_VERBOSE=y # CONFIG_SND_SPI is not set CONFIG_SND_SOC=y CONFIG_USB=y +CONFIG_USB_PHY=y CONFIG_USB_OHCI_HCD=y CONFIG_USB_STORAGE=y CONFIG_USB_GADGET=y diff --git a/arch/arm/configs/mxs_defconfig b/arch/arm/configs/mxs_defconfig index 6a99e30..87924d6 100644 --- a/arch/arm/configs/mxs_defconfig +++ b/arch/arm/configs/mxs_defconfig @@ -120,6 +120,7 @@ CONFIG_USB_EHCI_HCD=y CONFIG_USB_CHIPIDEA=y CONFIG_USB_CHIPIDEA_HOST=y CONFIG_USB_STORAGE=y +CONFIG_USB_PHY=y CONFIG_USB_MXS_PHY=y CONFIG_MMC=y CONFIG_MMC_MXS=y diff --git a/arch/arm/configs/omap1_defconfig b/arch/arm/configs/omap1_defconfig index 42eab9a..7e0ebb6 100644 --- a/arch/arm/configs/omap1_defconfig +++ b/arch/arm/configs/omap1_defconfig @@ -195,6 +195,7 @@ CONFIG_SND_SOC=y CONFIG_SND_OMAP_SOC=y # CONFIG_USB_HID is not set CONFIG_USB=y +CONFIG_USB_PHY=y CONFIG_USB_DEBUG=y CONFIG_USB_DEVICEFS=y # CONFIG_USB_DEVICE_CLASS is not set diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h index 80d6fc4..9bcd262 100644 --- a/arch/arm/include/asm/pgtable.h +++ b/arch/arm/include/asm/pgtable.h @@ -61,6 +61,15 @@ extern void __pgd_error(const char *file, int line, pgd_t); #define FIRST_USER_ADDRESS PAGE_SIZE /* + * Use TASK_SIZE as the ceiling argument for free_pgtables() and + * free_pgd_range() to avoid freeing the modules pmd when LPAE is enabled (pmd + * page shared between user and kernel). + */ +#ifdef CONFIG_ARM_LPAE +#define USER_PGTABLES_CEILING TASK_SIZE +#endif + +/* * The pgprot_* and protection_map entries will be fixed up in runtime * to include the cachable and bufferable bits based on memory policy, * as well as any architecture dependent bits like global/ASID and SMP diff --git a/arch/arm/include/asm/system_misc.h b/arch/arm/include/asm/system_misc.h index 5a85f14..21a23e3 100644 --- a/arch/arm/include/asm/system_misc.h +++ b/arch/arm/include/asm/system_misc.h @@ -21,9 +21,6 @@ extern void (*arm_pm_idle)(void); extern unsigned int user_debug; -extern void disable_hlt(void); -extern void enable_hlt(void); - #endif /* !__ASSEMBLY__ */ #endif /* __ASM_ARM_SYSTEM_MISC_H */ diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h index e4ddfb3..141baa3 100644 --- a/arch/arm/include/asm/unistd.h +++ b/arch/arm/include/asm/unistd.h @@ -44,14 +44,6 @@ #define __ARCH_WANT_SYS_CLONE /* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") - -/* * Unimplemented (or alternatively implemented) syscalls */ #define __IGNORE_fadvise64_64 diff --git a/arch/arm/kernel/early_printk.c b/arch/arm/kernel/early_printk.c index 85aa2b2..4307653 100644 --- a/arch/arm/kernel/early_printk.c +++ b/arch/arm/kernel/early_printk.c @@ -29,28 +29,17 @@ static void early_console_write(struct console *con, const char *s, unsigned n) early_write(s, n); } -static struct console early_console = { +static struct console early_console_dev = { .name = "earlycon", .write = early_console_write, .flags = CON_PRINTBUFFER | CON_BOOT, .index = -1, }; -asmlinkage void early_printk(const char *fmt, ...) -{ - char buf[512]; - int n; - va_list ap; - - va_start(ap, fmt); - n = vscnprintf(buf, sizeof(buf), fmt, ap); - early_write(buf, n); - va_end(ap); -} - static int __init setup_early_printk(char *buf) { - register_console(&early_console); + early_console = &early_console_dev; + register_console(&early_console_dev); return 0; } diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c index 9b6de8c..8ff0ecd 100644 --- a/arch/arm/kernel/etm.c +++ b/arch/arm/kernel/etm.c @@ -254,7 +254,7 @@ static void sysrq_etm_dump(int key) static struct sysrq_key_op sysrq_etm_op = { .handler = sysrq_etm_dump, - .help_msg = "ETM buffer dump", + .help_msg = "etm-buffer-dump(v)", .action_msg = "etm", }; diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 047d3e4..ae58d3b 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -57,38 +57,6 @@ static const char *isa_modes[] = { "ARM" , "Thumb" , "Jazelle", "ThumbEE" }; -static volatile int hlt_counter; - -void disable_hlt(void) -{ - hlt_counter++; -} - -EXPORT_SYMBOL(disable_hlt); - -void enable_hlt(void) -{ - hlt_counter--; - BUG_ON(hlt_counter < 0); -} - -EXPORT_SYMBOL(enable_hlt); - -static int __init nohlt_setup(char *__unused) -{ - hlt_counter = 1; - return 1; -} - -static int __init hlt_setup(char *__unused) -{ - hlt_counter = 0; - return 1; -} - -__setup("nohlt", nohlt_setup); -__setup("hlt", hlt_setup); - extern void call_with_stack(void (*fn)(void *), void *arg, void *sp); typedef void (*phys_reset_t)(unsigned long); @@ -172,54 +140,38 @@ static void default_idle(void) local_irq_enable(); } -/* - * The idle thread. - * We always respect 'hlt_counter' to prevent low power idle. - */ -void cpu_idle(void) +void arch_cpu_idle_prepare(void) { local_fiq_enable(); +} - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - ledtrig_cpu(CPU_LED_IDLE_START); - while (!need_resched()) { -#ifdef CONFIG_HOTPLUG_CPU - if (cpu_is_offline(smp_processor_id())) - cpu_die(); +void arch_cpu_idle_enter(void) +{ + ledtrig_cpu(CPU_LED_IDLE_START); +#ifdef CONFIG_PL310_ERRATA_769419 + wmb(); #endif +} - /* - * We need to disable interrupts here - * to ensure we don't miss a wakeup call. - */ - local_irq_disable(); -#ifdef CONFIG_PL310_ERRATA_769419 - wmb(); +void arch_cpu_idle_exit(void) +{ + ledtrig_cpu(CPU_LED_IDLE_END); +} + +#ifdef CONFIG_HOTPLUG_CPU +void arch_cpu_idle_dead(void) +{ + cpu_die(); +} #endif - if (hlt_counter) { - local_irq_enable(); - cpu_relax(); - } else if (!need_resched()) { - stop_critical_timings(); - if (cpuidle_idle_call()) - default_idle(); - start_critical_timings(); - /* - * default_idle functions must always - * return with IRQs enabled. - */ - WARN_ON(irqs_disabled()); - } else - local_irq_enable(); - } - ledtrig_cpu(CPU_LED_IDLE_END); - rcu_idle_exit(); - tick_nohz_idle_exit(); - schedule_preempt_disabled(); - } + +/* + * Called from the core idle loop. + */ +void arch_cpu_idle(void) +{ + if (cpuidle_idle_call()) + default_idle(); } static char reboot_mode = 'h'; @@ -273,11 +225,8 @@ void __show_regs(struct pt_regs *regs) unsigned long flags; char buf[64]; - printk("CPU: %d %s (%s %.*s)\n", - raw_smp_processor_id(), print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); + show_regs_print_info(KERN_DEFAULT); + print_symbol("PC is at %s\n", instruction_pointer(regs)); print_symbol("LR is at %s\n", regs->ARM_lr); printk("pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n" @@ -332,7 +281,6 @@ void __show_regs(struct pt_regs *regs) void show_regs(struct pt_regs * regs) { printk("\n"); - printk("Pid: %d, comm: %20s\n", task_pid_nr(current), current->comm); __show_regs(regs); dump_stack(); } diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 1f2cccc..4619177 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -336,7 +336,7 @@ asmlinkage void __cpuinit secondary_start_kernel(void) /* * OK, it's off to the idle thread for us */ - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } void __init smp_cpus_done(unsigned int max_cpus) diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c index 79282eb..f10316b 100644 --- a/arch/arm/kernel/topology.c +++ b/arch/arm/kernel/topology.c @@ -100,7 +100,7 @@ static void __init parse_dt_topology(void) int alloc_size, cpu = 0; alloc_size = nr_cpu_ids * sizeof(struct cpu_capacity); - cpu_capacity = (struct cpu_capacity *)kzalloc(alloc_size, GFP_NOWAIT); + cpu_capacity = kzalloc(alloc_size, GFP_NOWAIT); while ((cn = of_find_node_by_type(cn, "cpu"))) { const u32 *rate, *reg; diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 1c08911..18b32e8 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -204,13 +204,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) } #endif -void dump_stack(void) -{ - dump_backtrace(NULL, NULL); -} - -EXPORT_SYMBOL(dump_stack); - void show_stack(struct task_struct *tsk, unsigned long *sp) { dump_backtrace(NULL, tsk); diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index c1fe498..842098d 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -614,7 +614,7 @@ static int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *run, if (hsr_ec >= ARRAY_SIZE(arm_exit_handlers) || !arm_exit_handlers[hsr_ec]) { - kvm_err("Unkown exception class: %#08lx, " + kvm_err("Unknown exception class: %#08lx, " "hsr: %#08x\n", hsr_ec, (unsigned int)vcpu->arch.hsr); BUG(); diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c index b67cd53..44199bc 100644 --- a/arch/arm/mach-at91/at91sam9260.c +++ b/arch/arm/mach-at91/at91sam9260.c @@ -232,6 +232,8 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID("t2_clk", "fffdc000.timer", &tc5_clk), CLKDEV_CON_DEV_ID("hclk", "500000.ohci", &ohci_clk), CLKDEV_CON_DEV_ID("mci_clk", "fffa8000.mmc", &mmc_clk), + CLKDEV_CON_DEV_ID("spi_clk", "fffc8000.spi", &spi0_clk), + CLKDEV_CON_DEV_ID("spi_clk", "fffcc000.spi", &spi1_clk), /* fake hclk clock */ CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk), CLKDEV_CON_ID("pioA", &pioA_clk), diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c index d3addee..2ec5efe 100644 --- a/arch/arm/mach-at91/at91sam9g45.c +++ b/arch/arm/mach-at91/at91sam9g45.c @@ -262,6 +262,8 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID("mci_clk", "fffd0000.mmc", &mmc1_clk), CLKDEV_CON_DEV_ID(NULL, "fff84000.i2c", &twi0_clk), CLKDEV_CON_DEV_ID(NULL, "fff88000.i2c", &twi1_clk), + CLKDEV_CON_DEV_ID("spi_clk", "fffa4000.spi", &spi0_clk), + CLKDEV_CON_DEV_ID("spi_clk", "fffa8000.spi", &spi1_clk), /* fake hclk clock */ CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &uhphs_clk), CLKDEV_CON_DEV_ID(NULL, "fffff200.gpio", &pioA_clk), diff --git a/arch/arm/mach-at91/at91sam9n12.c b/arch/arm/mach-at91/at91sam9n12.c index 5dfc8fd..ccd0783 100644 --- a/arch/arm/mach-at91/at91sam9n12.c +++ b/arch/arm/mach-at91/at91sam9n12.c @@ -172,6 +172,8 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID("dma_clk", "ffffec00.dma-controller", &dma_clk), CLKDEV_CON_DEV_ID(NULL, "f8010000.i2c", &twi0_clk), CLKDEV_CON_DEV_ID(NULL, "f8014000.i2c", &twi1_clk), + CLKDEV_CON_DEV_ID("spi_clk", "f0000000.spi", &spi0_clk), + CLKDEV_CON_DEV_ID("spi_clk", "f0004000.spi", &spi1_clk), CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioAB_clk), CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioAB_clk), CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioCD_clk), diff --git a/arch/arm/mach-at91/at91sam9x5.c b/arch/arm/mach-at91/at91sam9x5.c index 44a9a62..a200d8a 100644 --- a/arch/arm/mach-at91/at91sam9x5.c +++ b/arch/arm/mach-at91/at91sam9x5.c @@ -237,6 +237,8 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID(NULL, "f8010000.i2c", &twi0_clk), CLKDEV_CON_DEV_ID(NULL, "f8014000.i2c", &twi1_clk), CLKDEV_CON_DEV_ID(NULL, "f8018000.i2c", &twi2_clk), + CLKDEV_CON_DEV_ID("spi_clk", "f0000000.spi", &spi0_clk), + CLKDEV_CON_DEV_ID("spi_clk", "f0004000.spi", &spi1_clk), CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioAB_clk), CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioAB_clk), CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioCD_clk), diff --git a/arch/arm/mach-at91/cpuidle.c b/arch/arm/mach-at91/cpuidle.c index 0c63815..48f1228 100644 --- a/arch/arm/mach-at91/cpuidle.c +++ b/arch/arm/mach-at91/cpuidle.c @@ -27,8 +27,6 @@ #define AT91_MAX_STATES 2 -static DEFINE_PER_CPU(struct cpuidle_device, at91_cpuidle_device); - /* Actual code that puts the SoC in different idle states */ static int at91_enter_idle(struct cpuidle_device *dev, struct cpuidle_driver *drv, @@ -47,7 +45,6 @@ static int at91_enter_idle(struct cpuidle_device *dev, static struct cpuidle_driver at91_idle_driver = { .name = "at91_idle", .owner = THIS_MODULE, - .en_core_tk_irqen = 1, .states[0] = ARM_CPUIDLE_WFI_STATE, .states[1] = { .enter = at91_enter_idle, @@ -61,20 +58,9 @@ static struct cpuidle_driver at91_idle_driver = { }; /* Initialize CPU idle by registering the idle states */ -static int at91_init_cpuidle(void) +static int __init at91_init_cpuidle(void) { - struct cpuidle_device *device; - - device = &per_cpu(at91_cpuidle_device, smp_processor_id()); - device->state_count = AT91_MAX_STATES; - - cpuidle_register_driver(&at91_idle_driver); - - if (cpuidle_register_device(device)) { - printk(KERN_ERR "at91_init_cpuidle: Failed registering\n"); - return -EIO; - } - return 0; + return cpuidle_register(&at91_idle_driver, NULL); } device_initcall(at91_init_cpuidle); diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig index bf02471..f112895 100644 --- a/arch/arm/mach-bcm/Kconfig +++ b/arch/arm/mach-bcm/Kconfig @@ -6,6 +6,7 @@ config ARCH_BCM select ARM_ERRATA_764369 if SMP select ARM_GIC select CPU_V7 + select CLKSRC_OF select GENERIC_CLOCKEVENTS select GENERIC_TIME select GPIO_BCM diff --git a/arch/arm/mach-bcm/board_bcm.c b/arch/arm/mach-bcm/board_bcm.c index f0f9aba..2595935 100644 --- a/arch/arm/mach-bcm/board_bcm.c +++ b/arch/arm/mach-bcm/board_bcm.c @@ -16,14 +16,11 @@ #include <linux/device.h> #include <linux/platform_device.h> #include <linux/irqchip.h> +#include <linux/clocksource.h> #include <asm/mach/arch.h> #include <asm/mach/time.h> -static void timer_init(void) -{ -} - static void __init board_init(void) { @@ -35,7 +32,7 @@ static const char * const bcm11351_dt_compat[] = { "bcm,bcm11351", NULL, }; DT_MACHINE_START(BCM11351_DT, "Broadcom Application Processor") .init_irq = irqchip_init, - .init_time = timer_init, + .init_time = clocksource_of_init, .init_machine = board_init, .dt_compat = bcm11351_dt_compat, MACHINE_END diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile index fb5c1aa..dd1ffcc 100644 --- a/arch/arm/mach-davinci/Makefile +++ b/arch/arm/mach-davinci/Makefile @@ -37,7 +37,6 @@ obj-$(CONFIG_MACH_MITYOMAPL138) += board-mityomapl138.o obj-$(CONFIG_MACH_OMAPL138_HAWKBOARD) += board-omapl138-hawk.o # Power Management -obj-$(CONFIG_CPU_FREQ) += cpufreq.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o obj-$(CONFIG_SUSPEND) += pm.o sleep.o obj-$(CONFIG_HAVE_CLK) += pm_domain.o diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c index 147b8e1..886481c 100644 --- a/arch/arm/mach-davinci/board-dm355-evm.c +++ b/arch/arm/mach-davinci/board-dm355-evm.c @@ -242,6 +242,73 @@ static struct vpfe_config vpfe_cfg = { .ccdc = "DM355 CCDC", }; +/* venc standards timings */ +static struct vpbe_enc_mode_info dm355evm_enc_preset_timing[] = { + { + .name = "ntsc", + .timings_type = VPBE_ENC_STD, + .std_id = V4L2_STD_NTSC, + .interlaced = 1, + .xres = 720, + .yres = 480, + .aspect = {11, 10}, + .fps = {30000, 1001}, + .left_margin = 0x79, + .upper_margin = 0x10, + }, + { + .name = "pal", + .timings_type = VPBE_ENC_STD, + .std_id = V4L2_STD_PAL, + .interlaced = 1, + .xres = 720, + .yres = 576, + .aspect = {54, 59}, + .fps = {25, 1}, + .left_margin = 0x7E, + .upper_margin = 0x16 + }, +}; + +#define VENC_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL) + +/* + * The outputs available from VPBE + ecnoders. Keep the + * the order same as that of encoders. First those from venc followed by that + * from encoders. Index in the output refers to index on a particular encoder. + * Driver uses this index to pass it to encoder when it supports more than + * one output. Application uses index of the array to set an output. + */ +static struct vpbe_output dm355evm_vpbe_outputs[] = { + { + .output = { + .index = 0, + .name = "Composite", + .type = V4L2_OUTPUT_TYPE_ANALOG, + .std = VENC_STD_ALL, + .capabilities = V4L2_OUT_CAP_STD, + }, + .subdev_name = DM355_VPBE_VENC_SUBDEV_NAME, + .default_mode = "ntsc", + .num_modes = ARRAY_SIZE(dm355evm_enc_preset_timing), + .modes = dm355evm_enc_preset_timing, + .if_params = V4L2_MBUS_FMT_FIXED, + }, +}; + +static struct vpbe_config dm355evm_display_cfg = { + .module_name = "dm355-vpbe-display", + .i2c_adapter_id = 1, + .osd = { + .module_name = DM355_VPBE_OSD_SUBDEV_NAME, + }, + .venc = { + .module_name = DM355_VPBE_VENC_SUBDEV_NAME, + }, + .num_outputs = ARRAY_SIZE(dm355evm_vpbe_outputs), + .outputs = dm355evm_vpbe_outputs, +}; + static struct platform_device *davinci_evm_devices[] __initdata = { &dm355evm_dm9000, &davinci_nand_device, @@ -253,8 +320,6 @@ static struct davinci_uart_config uart_config __initdata = { static void __init dm355_evm_map_io(void) { - /* setup input configuration for VPFE input devices */ - dm355_set_vpfe_config(&vpfe_cfg); dm355_init(); } @@ -344,6 +409,8 @@ static __init void dm355_evm_init(void) davinci_setup_mmc(0, &dm355evm_mmc_config); davinci_setup_mmc(1, &dm355evm_mmc_config); + dm355_init_video(&vpfe_cfg, &dm355evm_display_cfg); + dm355_init_spi0(BIT(0), dm355_evm_spi_info, ARRAY_SIZE(dm355_evm_spi_info)); diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c index c2d4958..2a66743 100644 --- a/arch/arm/mach-davinci/board-dm365-evm.c +++ b/arch/arm/mach-davinci/board-dm365-evm.c @@ -27,6 +27,7 @@ #include <linux/input.h> #include <linux/spi/spi.h> #include <linux/spi/eeprom.h> +#include <linux/v4l2-dv-timings.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -39,6 +40,7 @@ #include <linux/platform_data/mtd-davinci.h> #include <linux/platform_data/keyscan-davinci.h> +#include <media/ths7303.h> #include <media/tvp514x.h> #include "davinci.h" @@ -374,6 +376,166 @@ static struct vpfe_config vpfe_cfg = { .ccdc = "ISIF", }; +/* venc standards timings */ +static struct vpbe_enc_mode_info dm365evm_enc_std_timing[] = { + { + .name = "ntsc", + .timings_type = VPBE_ENC_STD, + .std_id = V4L2_STD_NTSC, + .interlaced = 1, + .xres = 720, + .yres = 480, + .aspect = {11, 10}, + .fps = {30000, 1001}, + .left_margin = 0x79, + .upper_margin = 0x10, + }, + { + .name = "pal", + .timings_type = VPBE_ENC_STD, + .std_id = V4L2_STD_PAL, + .interlaced = 1, + .xres = 720, + .yres = 576, + .aspect = {54, 59}, + .fps = {25, 1}, + .left_margin = 0x7E, + .upper_margin = 0x16, + }, +}; + +/* venc dv timings */ +static struct vpbe_enc_mode_info dm365evm_enc_preset_timing[] = { + { + .name = "480p59_94", + .timings_type = VPBE_ENC_DV_TIMINGS, + .dv_timings = V4L2_DV_BT_CEA_720X480P59_94, + .interlaced = 0, + .xres = 720, + .yres = 480, + .aspect = {1, 1}, + .fps = {5994, 100}, + .left_margin = 0x8F, + .upper_margin = 0x2D, + }, + { + .name = "576p50", + .timings_type = VPBE_ENC_DV_TIMINGS, + .dv_timings = V4L2_DV_BT_CEA_720X576P50, + .interlaced = 0, + .xres = 720, + .yres = 576, + .aspect = {1, 1}, + .fps = {50, 1}, + .left_margin = 0x8C, + .upper_margin = 0x36, + }, + { + .name = "720p60", + .timings_type = VPBE_ENC_DV_TIMINGS, + .dv_timings = V4L2_DV_BT_CEA_1280X720P60, + .interlaced = 0, + .xres = 1280, + .yres = 720, + .aspect = {1, 1}, + .fps = {60, 1}, + .left_margin = 0x117, + .right_margin = 70, + .upper_margin = 38, + .lower_margin = 3, + .hsync_len = 80, + .vsync_len = 5, + }, + { + .name = "1080i60", + .timings_type = VPBE_ENC_DV_TIMINGS, + .dv_timings = V4L2_DV_BT_CEA_1920X1080I60, + .interlaced = 1, + .xres = 1920, + .yres = 1080, + .aspect = {1, 1}, + .fps = {30, 1}, + .left_margin = 0xc9, + .right_margin = 80, + .upper_margin = 30, + .lower_margin = 3, + .hsync_len = 88, + .vsync_len = 5, + }, +}; + +#define VENC_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL) + +/* + * The outputs available from VPBE + ecnoders. Keep the + * the order same as that of encoders. First those from venc followed by that + * from encoders. Index in the output refers to index on a particular + * encoder.Driver uses this index to pass it to encoder when it supports more + * than one output. Application uses index of the array to set an output. + */ +static struct vpbe_output dm365evm_vpbe_outputs[] = { + { + .output = { + .index = 0, + .name = "Composite", + .type = V4L2_OUTPUT_TYPE_ANALOG, + .std = VENC_STD_ALL, + .capabilities = V4L2_OUT_CAP_STD, + }, + .subdev_name = DM365_VPBE_VENC_SUBDEV_NAME, + .default_mode = "ntsc", + .num_modes = ARRAY_SIZE(dm365evm_enc_std_timing), + .modes = dm365evm_enc_std_timing, + .if_params = V4L2_MBUS_FMT_FIXED, + }, + { + .output = { + .index = 1, + .name = "Component", + .type = V4L2_OUTPUT_TYPE_ANALOG, + .capabilities = V4L2_OUT_CAP_DV_TIMINGS, + }, + .subdev_name = DM365_VPBE_VENC_SUBDEV_NAME, + .default_mode = "480p59_94", + .num_modes = ARRAY_SIZE(dm365evm_enc_preset_timing), + .modes = dm365evm_enc_preset_timing, + .if_params = V4L2_MBUS_FMT_FIXED, + }, +}; + +/* + * Amplifiers on the board + */ +struct ths7303_platform_data ths7303_pdata = { + .ch_1 = 3, + .ch_2 = 3, + .ch_3 = 3, + .init_enable = 1, +}; + +static struct amp_config_info vpbe_amp = { + .module_name = "ths7303", + .is_i2c = 1, + .board_info = { + I2C_BOARD_INFO("ths7303", 0x2c), + .platform_data = &ths7303_pdata, + } +}; + +static struct vpbe_config dm365evm_display_cfg = { + .module_name = "dm365-vpbe-display", + .i2c_adapter_id = 1, + .amp = &vpbe_amp, + .osd = { + .module_name = DM365_VPBE_OSD_SUBDEV_NAME, + }, + .venc = { + .module_name = DM365_VPBE_VENC_SUBDEV_NAME, + }, + .num_outputs = ARRAY_SIZE(dm365evm_vpbe_outputs), + .outputs = dm365evm_vpbe_outputs, +}; + static void __init evm_init_i2c(void) { davinci_init_i2c(&i2c_pdata); @@ -564,8 +726,6 @@ static struct davinci_uart_config uart_config __initdata = { static void __init dm365_evm_map_io(void) { - /* setup input configuration for VPFE input devices */ - dm365_set_vpfe_config(&vpfe_cfg); dm365_init(); } @@ -597,6 +757,8 @@ static __init void dm365_evm_init(void) davinci_setup_mmc(0, &dm365evm_mmc_config); + dm365_init_video(&vpfe_cfg, &dm365evm_display_cfg); + /* maybe setup mmc1/etc ... _after_ mmc0 */ evm_init_cpld(); diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c index 71735e7..745280d 100644 --- a/arch/arm/mach-davinci/board-dm644x-evm.c +++ b/arch/arm/mach-davinci/board-dm644x-evm.c @@ -622,7 +622,7 @@ static struct vpbe_enc_mode_info dm644xevm_enc_std_timing[] = { { .name = "ntsc", .timings_type = VPBE_ENC_STD, - .std_id = V4L2_STD_525_60, + .std_id = V4L2_STD_NTSC, .interlaced = 1, .xres = 720, .yres = 480, @@ -634,7 +634,7 @@ static struct vpbe_enc_mode_info dm644xevm_enc_std_timing[] = { { .name = "pal", .timings_type = VPBE_ENC_STD, - .std_id = V4L2_STD_625_50, + .std_id = V4L2_STD_PAL, .interlaced = 1, .xres = 720, .yres = 576, @@ -649,7 +649,7 @@ static struct vpbe_enc_mode_info dm644xevm_enc_std_timing[] = { static struct vpbe_enc_mode_info dm644xevm_enc_preset_timing[] = { { .name = "480p59_94", - .timings_type = VPBE_ENC_CUSTOM_TIMINGS, + .timings_type = VPBE_ENC_DV_TIMINGS, .dv_timings = V4L2_DV_BT_CEA_720X480P59_94, .interlaced = 0, .xres = 720, @@ -661,7 +661,7 @@ static struct vpbe_enc_mode_info dm644xevm_enc_preset_timing[] = { }, { .name = "576p50", - .timings_type = VPBE_ENC_CUSTOM_TIMINGS, + .timings_type = VPBE_ENC_DV_TIMINGS, .dv_timings = V4L2_DV_BT_CEA_720X576P50, .interlaced = 0, .xres = 720, diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c index de7adff..fc4871a 100644 --- a/arch/arm/mach-davinci/board-dm646x-evm.c +++ b/arch/arm/mach-davinci/board-dm646x-evm.c @@ -514,7 +514,7 @@ static const struct vpif_output dm6467_ch0_outputs[] = { .index = 1, .name = "Component", .type = V4L2_OUTPUT_TYPE_ANALOG, - .capabilities = V4L2_OUT_CAP_CUSTOM_TIMINGS, + .capabilities = V4L2_OUT_CAP_DV_TIMINGS, }, .subdev_name = "adv7343", .output_route = ADV7343_COMPONENT_ID, diff --git a/arch/arm/mach-davinci/cpufreq.c b/arch/arm/mach-davinci/cpufreq.c deleted file mode 100644 index 4729eaa..0000000 --- a/arch/arm/mach-davinci/cpufreq.c +++ /dev/null @@ -1,248 +0,0 @@ -/* - * CPU frequency scaling for DaVinci - * - * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/ - * - * Based on linux/arch/arm/plat-omap/cpu-omap.c. Original Copyright follows: - * - * Copyright (C) 2005 Nokia Corporation - * Written by Tony Lindgren <tony@atomide.com> - * - * Based on cpu-sa1110.c, Copyright (C) 2001 Russell King - * - * Copyright (C) 2007-2008 Texas Instruments, Inc. - * Updated to support OMAP3 - * Rajendra Nayak <rnayak@ti.com> - * - * 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/types.h> -#include <linux/cpufreq.h> -#include <linux/init.h> -#include <linux/err.h> -#include <linux/clk.h> -#include <linux/platform_device.h> -#include <linux/export.h> - -#include <mach/hardware.h> -#include <mach/cpufreq.h> -#include <mach/common.h> - -#include "clock.h" - -struct davinci_cpufreq { - struct device *dev; - struct clk *armclk; - struct clk *asyncclk; - unsigned long asyncrate; -}; -static struct davinci_cpufreq cpufreq; - -static int davinci_verify_speed(struct cpufreq_policy *policy) -{ - struct davinci_cpufreq_config *pdata = cpufreq.dev->platform_data; - struct cpufreq_frequency_table *freq_table = pdata->freq_table; - struct clk *armclk = cpufreq.armclk; - - if (freq_table) - return cpufreq_frequency_table_verify(policy, freq_table); - - if (policy->cpu) - return -EINVAL; - - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); - - policy->min = clk_round_rate(armclk, policy->min * 1000) / 1000; - policy->max = clk_round_rate(armclk, policy->max * 1000) / 1000; - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); - return 0; -} - -static unsigned int davinci_getspeed(unsigned int cpu) -{ - if (cpu) - return 0; - - return clk_get_rate(cpufreq.armclk) / 1000; -} - -static int davinci_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) -{ - int ret = 0; - unsigned int idx; - struct cpufreq_freqs freqs; - struct davinci_cpufreq_config *pdata = cpufreq.dev->platform_data; - struct clk *armclk = cpufreq.armclk; - - /* - * Ensure desired rate is within allowed range. Some govenors - * (ondemand) will just pass target_freq=0 to get the minimum. - */ - if (target_freq < policy->cpuinfo.min_freq) - target_freq = policy->cpuinfo.min_freq; - if (target_freq > policy->cpuinfo.max_freq) - target_freq = policy->cpuinfo.max_freq; - - freqs.old = davinci_getspeed(0); - freqs.new = clk_round_rate(armclk, target_freq * 1000) / 1000; - freqs.cpu = 0; - - if (freqs.old == freqs.new) - return ret; - - dev_dbg(cpufreq.dev, "transition: %u --> %u\n", freqs.old, freqs.new); - - ret = cpufreq_frequency_table_target(policy, pdata->freq_table, - freqs.new, relation, &idx); - if (ret) - return -EINVAL; - - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - /* if moving to higher frequency, up the voltage beforehand */ - if (pdata->set_voltage && freqs.new > freqs.old) { - ret = pdata->set_voltage(idx); - if (ret) - goto out; - } - - ret = clk_set_rate(armclk, idx); - if (ret) - goto out; - - if (cpufreq.asyncclk) { - ret = clk_set_rate(cpufreq.asyncclk, cpufreq.asyncrate); - if (ret) - goto out; - } - - /* if moving to lower freq, lower the voltage after lowering freq */ - if (pdata->set_voltage && freqs.new < freqs.old) - pdata->set_voltage(idx); - -out: - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - return ret; -} - -static int davinci_cpu_init(struct cpufreq_policy *policy) -{ - int result = 0; - struct davinci_cpufreq_config *pdata = cpufreq.dev->platform_data; - struct cpufreq_frequency_table *freq_table = pdata->freq_table; - - if (policy->cpu != 0) - return -EINVAL; - - /* Finish platform specific initialization */ - if (pdata->init) { - result = pdata->init(); - if (result) - return result; - } - - policy->cur = policy->min = policy->max = davinci_getspeed(0); - - if (freq_table) { - result = cpufreq_frequency_table_cpuinfo(policy, freq_table); - if (!result) - cpufreq_frequency_table_get_attr(freq_table, - policy->cpu); - } else { - policy->cpuinfo.min_freq = policy->min; - policy->cpuinfo.max_freq = policy->max; - } - - policy->min = policy->cpuinfo.min_freq; - policy->max = policy->cpuinfo.max_freq; - policy->cur = davinci_getspeed(0); - - /* - * Time measurement across the target() function yields ~1500-1800us - * time taken with no drivers on notification list. - * Setting the latency to 2000 us to accommodate addition of drivers - * to pre/post change notification list. - */ - policy->cpuinfo.transition_latency = 2000 * 1000; - return 0; -} - -static int davinci_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static struct freq_attr *davinci_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - -static struct cpufreq_driver davinci_driver = { - .flags = CPUFREQ_STICKY, - .verify = davinci_verify_speed, - .target = davinci_target, - .get = davinci_getspeed, - .init = davinci_cpu_init, - .exit = davinci_cpu_exit, - .name = "davinci", - .attr = davinci_cpufreq_attr, -}; - -static int __init davinci_cpufreq_probe(struct platform_device *pdev) -{ - struct davinci_cpufreq_config *pdata = pdev->dev.platform_data; - struct clk *asyncclk; - - if (!pdata) - return -EINVAL; - if (!pdata->freq_table) - return -EINVAL; - - cpufreq.dev = &pdev->dev; - - cpufreq.armclk = clk_get(NULL, "arm"); - if (IS_ERR(cpufreq.armclk)) { - dev_err(cpufreq.dev, "Unable to get ARM clock\n"); - return PTR_ERR(cpufreq.armclk); - } - - asyncclk = clk_get(cpufreq.dev, "async"); - if (!IS_ERR(asyncclk)) { - cpufreq.asyncclk = asyncclk; - cpufreq.asyncrate = clk_get_rate(asyncclk); - } - - return cpufreq_register_driver(&davinci_driver); -} - -static int __exit davinci_cpufreq_remove(struct platform_device *pdev) -{ - clk_put(cpufreq.armclk); - - if (cpufreq.asyncclk) - clk_put(cpufreq.asyncclk); - - return cpufreq_unregister_driver(&davinci_driver); -} - -static struct platform_driver davinci_cpufreq_driver = { - .driver = { - .name = "cpufreq-davinci", - .owner = THIS_MODULE, - }, - .remove = __exit_p(davinci_cpufreq_remove), -}; - -int __init davinci_cpufreq_init(void) -{ - return platform_driver_probe(&davinci_cpufreq_driver, - davinci_cpufreq_probe); -} - diff --git a/arch/arm/mach-davinci/cpuidle.c b/arch/arm/mach-davinci/cpuidle.c index 5ac9e93..36aef3a 100644 --- a/arch/arm/mach-davinci/cpuidle.c +++ b/arch/arm/mach-davinci/cpuidle.c @@ -25,7 +25,6 @@ #define DAVINCI_CPUIDLE_MAX_STATES 2 -static DEFINE_PER_CPU(struct cpuidle_device, davinci_cpuidle_device); static void __iomem *ddr2_reg_base; static bool ddr2_pdown; @@ -50,14 +49,10 @@ static void davinci_save_ddr_power(int enter, bool pdown) /* Actual code that puts the SoC in different idle states */ static int davinci_enter_idle(struct cpuidle_device *dev, - struct cpuidle_driver *drv, - int index) + struct cpuidle_driver *drv, int index) { davinci_save_ddr_power(1, ddr2_pdown); - - index = cpuidle_wrap_enter(dev, drv, index, - arm_cpuidle_simple_enter); - + cpu_do_idle(); davinci_save_ddr_power(0, ddr2_pdown); return index; @@ -66,7 +61,6 @@ static int davinci_enter_idle(struct cpuidle_device *dev, static struct cpuidle_driver davinci_idle_driver = { .name = "cpuidle-davinci", .owner = THIS_MODULE, - .en_core_tk_irqen = 1, .states[0] = ARM_CPUIDLE_WFI_STATE, .states[1] = { .enter = davinci_enter_idle, @@ -81,12 +75,8 @@ static struct cpuidle_driver davinci_idle_driver = { static int __init davinci_cpuidle_probe(struct platform_device *pdev) { - int ret; - struct cpuidle_device *device; struct davinci_cpuidle_config *pdata = pdev->dev.platform_data; - device = &per_cpu(davinci_cpuidle_device, smp_processor_id()); - if (!pdata) { dev_err(&pdev->dev, "cannot get platform data\n"); return -ENOENT; @@ -96,20 +86,7 @@ static int __init davinci_cpuidle_probe(struct platform_device *pdev) ddr2_pdown = pdata->ddr2_pdown; - ret = cpuidle_register_driver(&davinci_idle_driver); - if (ret) { - dev_err(&pdev->dev, "failed to register driver\n"); - return ret; - } - - ret = cpuidle_register_device(device); - if (ret) { - dev_err(&pdev->dev, "failed to register device\n"); - cpuidle_unregister_driver(&davinci_idle_driver); - return ret; - } - - return 0; + return cpuidle_register(&davinci_idle_driver, NULL); } static struct platform_driver davinci_cpuidle_driver = { diff --git a/arch/arm/mach-davinci/davinci.h b/arch/arm/mach-davinci/davinci.h index 12d544b..1ab3df4 100644 --- a/arch/arm/mach-davinci/davinci.h +++ b/arch/arm/mach-davinci/davinci.h @@ -36,12 +36,19 @@ #include <media/davinci/vpbe_osd.h> #define DAVINCI_SYSTEM_MODULE_BASE 0x01c40000 +#define SYSMOD_VDAC_CONFIG 0x2c #define SYSMOD_VIDCLKCTL 0x38 #define SYSMOD_VPSS_CLKCTL 0x44 #define SYSMOD_VDD3P3VPWDN 0x48 #define SYSMOD_VSCLKDIS 0x6c #define SYSMOD_PUPDCTL1 0x7c +/* VPSS CLKCTL bit definitions */ +#define VPSS_MUXSEL_EXTCLK_ENABLE BIT(1) +#define VPSS_VENCCLKEN_ENABLE BIT(3) +#define VPSS_DACCLKEN_ENABLE BIT(4) +#define VPSS_PLLC2SYSCLK5_ENABLE BIT(5) + extern void __iomem *davinci_sysmod_base; #define DAVINCI_SYSMOD_VIRT(x) (davinci_sysmod_base + (x)) void davinci_map_sysmod(void); @@ -74,7 +81,7 @@ void __init dm355_init(void); void dm355_init_spi0(unsigned chipselect_mask, const struct spi_board_info *info, unsigned len); void __init dm355_init_asp1(u32 evt_enable, struct snd_platform_data *pdata); -void dm355_set_vpfe_config(struct vpfe_config *cfg); +int dm355_init_video(struct vpfe_config *, struct vpbe_config *); /* DM365 function declarations */ void __init dm365_init(void); @@ -84,7 +91,7 @@ void __init dm365_init_ks(struct davinci_ks_platform_data *pdata); void __init dm365_init_rtc(void); void dm365_init_spi0(unsigned chipselect_mask, const struct spi_board_info *info, unsigned len); -void dm365_set_vpfe_config(struct vpfe_config *cfg); +int dm365_init_video(struct vpfe_config *, struct vpbe_config *); /* DM644x function declarations */ void __init dm644x_init(void); diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c index b49c3b7..bf9a9d4 100644 --- a/arch/arm/mach-davinci/dm355.c +++ b/arch/arm/mach-davinci/dm355.c @@ -35,6 +35,8 @@ #include "asp.h" #define DM355_UART2_BASE (IO_PHYS + 0x206000) +#define DM355_OSD_BASE (IO_PHYS + 0x70200) +#define DM355_VENC_BASE (IO_PHYS + 0x70400) /* * Device specific clocks @@ -345,8 +347,8 @@ static struct clk_lookup dm355_clks[] = { CLK(NULL, "pll1_aux", &pll1_aux_clk), CLK(NULL, "pll1_sysclkbp", &pll1_sysclkbp), CLK(NULL, "vpss_dac", &vpss_dac_clk), - CLK(NULL, "vpss_master", &vpss_master_clk), - CLK(NULL, "vpss_slave", &vpss_slave_clk), + CLK("vpss", "master", &vpss_master_clk), + CLK("vpss", "slave", &vpss_slave_clk), CLK(NULL, "clkout1", &clkout1_clk), CLK(NULL, "clkout2", &clkout2_clk), CLK(NULL, "pll2", &pll2_clk), @@ -744,11 +746,146 @@ static struct platform_device vpfe_capture_dev = { }, }; -void dm355_set_vpfe_config(struct vpfe_config *cfg) +static struct resource dm355_osd_resources[] = { + { + .start = DM355_OSD_BASE, + .end = DM355_OSD_BASE + 0x17f, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device dm355_osd_dev = { + .name = DM355_VPBE_OSD_SUBDEV_NAME, + .id = -1, + .num_resources = ARRAY_SIZE(dm355_osd_resources), + .resource = dm355_osd_resources, + .dev = { + .dma_mask = &vpfe_capture_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +static struct resource dm355_venc_resources[] = { + { + .start = IRQ_VENCINT, + .end = IRQ_VENCINT, + .flags = IORESOURCE_IRQ, + }, + /* venc registers io space */ + { + .start = DM355_VENC_BASE, + .end = DM355_VENC_BASE + 0x17f, + .flags = IORESOURCE_MEM, + }, + /* VDAC config register io space */ + { + .start = DAVINCI_SYSTEM_MODULE_BASE + SYSMOD_VDAC_CONFIG, + .end = DAVINCI_SYSTEM_MODULE_BASE + SYSMOD_VDAC_CONFIG + 3, + .flags = IORESOURCE_MEM, + }, +}; + +static struct resource dm355_v4l2_disp_resources[] = { + { + .start = IRQ_VENCINT, + .end = IRQ_VENCINT, + .flags = IORESOURCE_IRQ, + }, + /* venc registers io space */ + { + .start = DM355_VENC_BASE, + .end = DM355_VENC_BASE + 0x17f, + .flags = IORESOURCE_MEM, + }, +}; + +static int dm355_vpbe_setup_pinmux(enum v4l2_mbus_pixelcode if_type, + int field) +{ + switch (if_type) { + case V4L2_MBUS_FMT_SGRBG8_1X8: + davinci_cfg_reg(DM355_VOUT_FIELD_G70); + break; + case V4L2_MBUS_FMT_YUYV10_1X20: + if (field) + davinci_cfg_reg(DM355_VOUT_FIELD); + else + davinci_cfg_reg(DM355_VOUT_FIELD_G70); + break; + default: + return -EINVAL; + } + + davinci_cfg_reg(DM355_VOUT_COUTL_EN); + davinci_cfg_reg(DM355_VOUT_COUTH_EN); + + return 0; +} + +static int dm355_venc_setup_clock(enum vpbe_enc_timings_type type, + unsigned int pclock) { - vpfe_capture_dev.dev.platform_data = cfg; + void __iomem *vpss_clk_ctrl_reg; + + vpss_clk_ctrl_reg = DAVINCI_SYSMOD_VIRT(SYSMOD_VPSS_CLKCTL); + + switch (type) { + case VPBE_ENC_STD: + writel(VPSS_DACCLKEN_ENABLE | VPSS_VENCCLKEN_ENABLE, + vpss_clk_ctrl_reg); + break; + case VPBE_ENC_DV_TIMINGS: + if (pclock > 27000000) + /* + * For HD, use external clock source since we cannot + * support HD mode with internal clocks. + */ + writel(VPSS_MUXSEL_EXTCLK_ENABLE, vpss_clk_ctrl_reg); + break; + default: + return -EINVAL; + } + + return 0; } +static struct platform_device dm355_vpbe_display = { + .name = "vpbe-v4l2", + .id = -1, + .num_resources = ARRAY_SIZE(dm355_v4l2_disp_resources), + .resource = dm355_v4l2_disp_resources, + .dev = { + .dma_mask = &vpfe_capture_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +struct venc_platform_data dm355_venc_pdata = { + .setup_pinmux = dm355_vpbe_setup_pinmux, + .setup_clock = dm355_venc_setup_clock, +}; + +static struct platform_device dm355_venc_dev = { + .name = DM355_VPBE_VENC_SUBDEV_NAME, + .id = -1, + .num_resources = ARRAY_SIZE(dm355_venc_resources), + .resource = dm355_venc_resources, + .dev = { + .dma_mask = &vpfe_capture_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = (void *)&dm355_venc_pdata, + }, +}; + +static struct platform_device dm355_vpbe_dev = { + .name = "vpbe_controller", + .id = -1, + .dev = { + .dma_mask = &vpfe_capture_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + /*----------------------------------------------------------------------*/ static struct map_desc dm355_io_desc[] = { @@ -868,19 +1005,36 @@ void __init dm355_init(void) davinci_map_sysmod(); } +int __init dm355_init_video(struct vpfe_config *vpfe_cfg, + struct vpbe_config *vpbe_cfg) +{ + if (vpfe_cfg || vpbe_cfg) + platform_device_register(&dm355_vpss_device); + + if (vpfe_cfg) { + vpfe_capture_dev.dev.platform_data = vpfe_cfg; + platform_device_register(&dm355_ccdc_dev); + platform_device_register(&vpfe_capture_dev); + } + + if (vpbe_cfg) { + dm355_vpbe_dev.dev.platform_data = vpbe_cfg; + platform_device_register(&dm355_osd_dev); + platform_device_register(&dm355_venc_dev); + platform_device_register(&dm355_vpbe_dev); + platform_device_register(&dm355_vpbe_display); + } + + return 0; +} + static int __init dm355_init_devices(void) { if (!cpu_is_davinci_dm355()) return 0; - /* Add ccdc clock aliases */ - clk_add_alias("master", dm355_ccdc_dev.name, "vpss_master", NULL); - clk_add_alias("slave", dm355_ccdc_dev.name, "vpss_master", NULL); davinci_cfg_reg(DM355_INT_EDMA_CC); platform_device_register(&dm355_edma_device); - platform_device_register(&dm355_vpss_device); - platform_device_register(&dm355_ccdc_dev); - platform_device_register(&vpfe_capture_dev); return 0; } diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c index 6c39805..ff771ce 100644 --- a/arch/arm/mach-davinci/dm365.c +++ b/arch/arm/mach-davinci/dm365.c @@ -39,16 +39,13 @@ #include "asp.h" #define DM365_REF_FREQ 24000000 /* 24 MHz on the DM365 EVM */ - -/* Base of key scan register bank */ -#define DM365_KEYSCAN_BASE 0x01c69400 - #define DM365_RTC_BASE 0x01c69000 - +#define DM365_KEYSCAN_BASE 0x01c69400 +#define DM365_OSD_BASE 0x01c71c00 +#define DM365_VENC_BASE 0x01c71e00 #define DAVINCI_DM365_VC_BASE 0x01d0c000 #define DAVINCI_DMA_VC_TX 2 #define DAVINCI_DMA_VC_RX 3 - #define DM365_EMAC_BASE 0x01d07000 #define DM365_EMAC_MDIO_BASE (DM365_EMAC_BASE + 0x4000) #define DM365_EMAC_CNTRL_OFFSET 0x0000 @@ -257,6 +254,12 @@ static struct clk vpss_master_clk = { .flags = CLK_PSC, }; +static struct clk vpss_slave_clk = { + .name = "vpss_slave", + .parent = &pll1_sysclk5, + .lpsc = DAVINCI_LPSC_VPSSSLV, +}; + static struct clk arm_clk = { .name = "arm_clk", .parent = &pll2_sysclk2, @@ -449,7 +452,8 @@ static struct clk_lookup dm365_clks[] = { CLK(NULL, "pll2_sysclk8", &pll2_sysclk8), CLK(NULL, "pll2_sysclk9", &pll2_sysclk9), CLK(NULL, "vpss_dac", &vpss_dac_clk), - CLK(NULL, "vpss_master", &vpss_master_clk), + CLK("vpss", "master", &vpss_master_clk), + CLK("vpss", "slave", &vpss_slave_clk), CLK(NULL, "arm", &arm_clk), CLK(NULL, "uart0", &uart0_clk), CLK(NULL, "uart1", &uart1_clk), @@ -1226,6 +1230,173 @@ static struct platform_device dm365_isif_dev = { }, }; +static struct resource dm365_osd_resources[] = { + { + .start = DM365_OSD_BASE, + .end = DM365_OSD_BASE + 0xff, + .flags = IORESOURCE_MEM, + }, +}; + +static u64 dm365_video_dma_mask = DMA_BIT_MASK(32); + +static struct platform_device dm365_osd_dev = { + .name = DM365_VPBE_OSD_SUBDEV_NAME, + .id = -1, + .num_resources = ARRAY_SIZE(dm365_osd_resources), + .resource = dm365_osd_resources, + .dev = { + .dma_mask = &dm365_video_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +static struct resource dm365_venc_resources[] = { + { + .start = IRQ_VENCINT, + .end = IRQ_VENCINT, + .flags = IORESOURCE_IRQ, + }, + /* venc registers io space */ + { + .start = DM365_VENC_BASE, + .end = DM365_VENC_BASE + 0x177, + .flags = IORESOURCE_MEM, + }, + /* vdaccfg registers io space */ + { + .start = DAVINCI_SYSTEM_MODULE_BASE + SYSMOD_VDAC_CONFIG, + .end = DAVINCI_SYSTEM_MODULE_BASE + SYSMOD_VDAC_CONFIG + 3, + .flags = IORESOURCE_MEM, + }, +}; + +static struct resource dm365_v4l2_disp_resources[] = { + { + .start = IRQ_VENCINT, + .end = IRQ_VENCINT, + .flags = IORESOURCE_IRQ, + }, + /* venc registers io space */ + { + .start = DM365_VENC_BASE, + .end = DM365_VENC_BASE + 0x177, + .flags = IORESOURCE_MEM, + }, +}; + +static int dm365_vpbe_setup_pinmux(enum v4l2_mbus_pixelcode if_type, + int field) +{ + switch (if_type) { + case V4L2_MBUS_FMT_SGRBG8_1X8: + davinci_cfg_reg(DM365_VOUT_FIELD_G81); + davinci_cfg_reg(DM365_VOUT_COUTL_EN); + davinci_cfg_reg(DM365_VOUT_COUTH_EN); + break; + case V4L2_MBUS_FMT_YUYV10_1X20: + if (field) + davinci_cfg_reg(DM365_VOUT_FIELD); + else + davinci_cfg_reg(DM365_VOUT_FIELD_G81); + davinci_cfg_reg(DM365_VOUT_COUTL_EN); + davinci_cfg_reg(DM365_VOUT_COUTH_EN); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int dm365_venc_setup_clock(enum vpbe_enc_timings_type type, + unsigned int pclock) +{ + void __iomem *vpss_clkctl_reg; + u32 val; + + vpss_clkctl_reg = DAVINCI_SYSMOD_VIRT(SYSMOD_VPSS_CLKCTL); + + switch (type) { + case VPBE_ENC_STD: + val = VPSS_VENCCLKEN_ENABLE | VPSS_DACCLKEN_ENABLE; + break; + case VPBE_ENC_DV_TIMINGS: + if (pclock <= 27000000) { + val = VPSS_VENCCLKEN_ENABLE | VPSS_DACCLKEN_ENABLE; + } else { + /* set sysclk4 to output 74.25 MHz from pll1 */ + val = VPSS_PLLC2SYSCLK5_ENABLE | VPSS_DACCLKEN_ENABLE | + VPSS_VENCCLKEN_ENABLE; + } + break; + default: + return -EINVAL; + } + writel(val, vpss_clkctl_reg); + + return 0; +} + +static struct platform_device dm365_vpbe_display = { + .name = "vpbe-v4l2", + .id = -1, + .num_resources = ARRAY_SIZE(dm365_v4l2_disp_resources), + .resource = dm365_v4l2_disp_resources, + .dev = { + .dma_mask = &dm365_video_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +struct venc_platform_data dm365_venc_pdata = { + .setup_pinmux = dm365_vpbe_setup_pinmux, + .setup_clock = dm365_venc_setup_clock, +}; + +static struct platform_device dm365_venc_dev = { + .name = DM365_VPBE_VENC_SUBDEV_NAME, + .id = -1, + .num_resources = ARRAY_SIZE(dm365_venc_resources), + .resource = dm365_venc_resources, + .dev = { + .dma_mask = &dm365_video_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = (void *)&dm365_venc_pdata, + }, +}; + +static struct platform_device dm365_vpbe_dev = { + .name = "vpbe_controller", + .id = -1, + .dev = { + .dma_mask = &dm365_video_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +int __init dm365_init_video(struct vpfe_config *vpfe_cfg, + struct vpbe_config *vpbe_cfg) +{ + if (vpfe_cfg || vpbe_cfg) + platform_device_register(&dm365_vpss_device); + + if (vpfe_cfg) { + vpfe_capture_dev.dev.platform_data = vpfe_cfg; + platform_device_register(&dm365_isif_dev); + platform_device_register(&vpfe_capture_dev); + } + if (vpbe_cfg) { + dm365_vpbe_dev.dev.platform_data = vpbe_cfg; + platform_device_register(&dm365_osd_dev); + platform_device_register(&dm365_venc_dev); + platform_device_register(&dm365_vpbe_dev); + platform_device_register(&dm365_vpbe_display); + } + + return 0; +} + static int __init dm365_init_devices(void) { if (!cpu_is_davinci_dm365()) @@ -1239,16 +1410,6 @@ static int __init dm365_init_devices(void) clk_add_alias(NULL, dev_name(&dm365_mdio_device.dev), NULL, &dm365_emac_device.dev); - /* Add isif clock alias */ - clk_add_alias("master", dm365_isif_dev.name, "vpss_master", NULL); - platform_device_register(&dm365_vpss_device); - platform_device_register(&dm365_isif_dev); - platform_device_register(&vpfe_capture_dev); return 0; } postcore_initcall(dm365_init_devices); - -void dm365_set_vpfe_config(struct vpfe_config *cfg) -{ - vpfe_capture_dev.dev.platform_data = cfg; -} diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c index db1dd92..c2a9273 100644 --- a/arch/arm/mach-davinci/dm644x.c +++ b/arch/arm/mach-davinci/dm644x.c @@ -300,8 +300,8 @@ static struct clk_lookup dm644x_clks[] = { CLK(NULL, "dsp", &dsp_clk), CLK(NULL, "arm", &arm_clk), CLK(NULL, "vicp", &vicp_clk), - CLK(NULL, "vpss_master", &vpss_master_clk), - CLK(NULL, "vpss_slave", &vpss_slave_clk), + CLK("vpss", "master", &vpss_master_clk), + CLK("vpss", "slave", &vpss_slave_clk), CLK(NULL, "arm", &arm_clk), CLK(NULL, "uart0", &uart0_clk), CLK(NULL, "uart1", &uart1_clk), @@ -706,7 +706,7 @@ static int dm644x_venc_setup_clock(enum vpbe_enc_timings_type type, v |= DM644X_VPSS_DACCLKEN; writel(v, DAVINCI_SYSMOD_VIRT(SYSMOD_VPSS_CLKCTL)); break; - case VPBE_ENC_CUSTOM_TIMINGS: + case VPBE_ENC_DV_TIMINGS: if (pclock <= 27000000) { v |= DM644X_VPSS_DACCLKEN; writel(v, DAVINCI_SYSMOD_VIRT(SYSMOD_VPSS_CLKCTL)); @@ -901,11 +901,6 @@ int __init dm644x_init_video(struct vpfe_config *vpfe_cfg, dm644x_vpfe_dev.dev.platform_data = vpfe_cfg; platform_device_register(&dm644x_ccdc_dev); platform_device_register(&dm644x_vpfe_dev); - /* Add ccdc clock aliases */ - clk_add_alias("master", dm644x_ccdc_dev.name, - "vpss_master", NULL); - clk_add_alias("slave", dm644x_ccdc_dev.name, - "vpss_slave", NULL); } if (vpbe_cfg) { diff --git a/arch/arm/mach-davinci/pm_domain.c b/arch/arm/mach-davinci/pm_domain.c index c90250e..6b98413 100644 --- a/arch/arm/mach-davinci/pm_domain.c +++ b/arch/arm/mach-davinci/pm_domain.c @@ -53,7 +53,7 @@ static struct dev_pm_domain davinci_pm_domain = { static struct pm_clk_notifier_block platform_bus_notifier = { .pm_domain = &davinci_pm_domain, - .con_ids = { "fck", NULL, }, + .con_ids = { "fck", "master", "slave", NULL }, }; static int __init davinci_pm_runtime_init(void) diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index 70f94c8..d5dde07 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -72,10 +72,12 @@ config SOC_EXYNOS5440 bool "SAMSUNG EXYNOS5440" default y depends on ARCH_EXYNOS5 + select ARCH_HAS_OPP select ARM_ARCH_TIMER select AUTO_ZRELADDR select PINCTRL select PINCTRL_EXYNOS5440 + select PM_OPP help Enable EXYNOS5440 SoC support diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c index fcfe025..498a7a23 100644 --- a/arch/arm/mach-exynos/cpuidle.c +++ b/arch/arm/mach-exynos/cpuidle.c @@ -58,7 +58,6 @@ static DEFINE_PER_CPU(struct cpuidle_device, exynos4_cpuidle_device); static struct cpuidle_driver exynos4_idle_driver = { .name = "exynos4_idle", .owner = THIS_MODULE, - .en_core_tk_irqen = 1, }; /* Ext-GIC nIRQ/nFIQ is the only wakeup source in AFTR */ diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c index 497fcb7..d28c7fb 100644 --- a/arch/arm/mach-exynos/mach-universal_c210.c +++ b/arch/arm/mach-exynos/mach-universal_c210.c @@ -97,6 +97,19 @@ static struct s3c2410_uartcfg universal_uartcfgs[] __initdata = { static struct regulator_consumer_supply max8952_consumer = REGULATOR_SUPPLY("vdd_arm", NULL); +static struct regulator_init_data universal_max8952_reg_data = { + .constraints = { + .name = "VARM_1.2V", + .min_uV = 770000, + .max_uV = 1400000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .always_on = 1, + .boot_on = 1, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &max8952_consumer, +}; + static struct max8952_platform_data universal_max8952_pdata __initdata = { .gpio_vid0 = EXYNOS4_GPX0(3), .gpio_vid1 = EXYNOS4_GPX0(4), @@ -105,19 +118,7 @@ static struct max8952_platform_data universal_max8952_pdata __initdata = { .dvs_mode = { 48, 32, 28, 18 }, /* 1.25, 1.20, 1.05, 0.95V */ .sync_freq = 0, /* default: fastest */ .ramp_speed = 0, /* default: fastest */ - - .reg_data = { - .constraints = { - .name = "VARM_1.2V", - .min_uV = 770000, - .max_uV = 1400000, - .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, - .always_on = 1, - .boot_on = 1, - }, - .num_consumer_supplies = 1, - .consumer_supplies = &max8952_consumer, - }, + .reg_data = &universal_max8952_reg_data, }; static struct regulator_consumer_supply lp3974_buck1_consumer = diff --git a/arch/arm/mach-exynos/setup-usb-phy.c b/arch/arm/mach-exynos/setup-usb-phy.c index b81cc56..6af4066 100644 --- a/arch/arm/mach-exynos/setup-usb-phy.c +++ b/arch/arm/mach-exynos/setup-usb-phy.c @@ -204,9 +204,9 @@ static int exynos4210_usb_phy1_exit(struct platform_device *pdev) int s5p_usb_phy_init(struct platform_device *pdev, int type) { - if (type == S5P_USB_PHY_DEVICE) + if (type == USB_PHY_TYPE_DEVICE) return exynos4210_usb_phy0_init(pdev); - else if (type == S5P_USB_PHY_HOST) + else if (type == USB_PHY_TYPE_HOST) return exynos4210_usb_phy1_init(pdev); return -EINVAL; @@ -214,9 +214,9 @@ int s5p_usb_phy_init(struct platform_device *pdev, int type) int s5p_usb_phy_exit(struct platform_device *pdev, int type) { - if (type == S5P_USB_PHY_DEVICE) + if (type == USB_PHY_TYPE_DEVICE) return exynos4210_usb_phy0_exit(pdev); - else if (type == S5P_USB_PHY_HOST) + else if (type == USB_PHY_TYPE_HOST) return exynos4210_usb_phy1_exit(pdev); return -EINVAL; diff --git a/arch/arm/mach-gemini/idle.c b/arch/arm/mach-gemini/idle.c index 92bbd6b..87dff4f 100644 --- a/arch/arm/mach-gemini/idle.c +++ b/arch/arm/mach-gemini/idle.c @@ -13,9 +13,11 @@ static void gemini_idle(void) * will never wakeup... Acctualy it is not very good to enable * interrupts first since scheduler can miss a tick, but there is * no other way around this. Platforms that needs it for power saving - * should call enable_hlt() in init code, since by default it is + * should enable it in init code, since by default it is * disabled. */ + + /* FIXME: Enabling interrupts here is racy! */ local_irq_enable(); cpu_do_idle(); } diff --git a/arch/arm/mach-gemini/irq.c b/arch/arm/mach-gemini/irq.c index 020852d..6d8f6d1 100644 --- a/arch/arm/mach-gemini/irq.c +++ b/arch/arm/mach-gemini/irq.c @@ -15,6 +15,8 @@ #include <linux/stddef.h> #include <linux/list.h> #include <linux/sched.h> +#include <linux/cpu.h> + #include <asm/irq.h> #include <asm/mach/irq.h> #include <asm/system_misc.h> @@ -77,7 +79,7 @@ void __init gemini_init_irq(void) * Disable the idle handler by default since it is buggy * For more info see arch/arm/mach-gemini/idle.c */ - disable_hlt(); + cpu_idle_poll_ctrl(true); request_resource(&iomem_resource, &irq_resource); diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index c4ce090..cb70961 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -30,7 +30,7 @@ obj-$(CONFIG_MXC_DEBUG_BOARD) += 3ds_debugboard.o obj-$(CONFIG_CPU_FREQ_IMX) += cpufreq.o ifeq ($(CONFIG_CPU_IDLE),y) -obj-y += cpuidle.o +obj-$(CONFIG_SOC_IMX5) += cpuidle-imx5.o obj-$(CONFIG_SOC_IMX6Q) += cpuidle-imx6q.o endif diff --git a/arch/arm/mach-imx/clk-busy.c b/arch/arm/mach-imx/clk-busy.c index 1ab91b5..85b728c 100644 --- a/arch/arm/mach-imx/clk-busy.c +++ b/arch/arm/mach-imx/clk-busy.c @@ -169,7 +169,7 @@ struct clk *imx_clk_busy_mux(const char *name, void __iomem *reg, u8 shift, busy->mux.reg = reg; busy->mux.shift = shift; - busy->mux.width = width; + busy->mux.mask = BIT(width) - 1; busy->mux.lock = &imx_ccm_lock; busy->mux_ops = &clk_mux_ops; diff --git a/arch/arm/mach-imx/cpufreq.c b/arch/arm/mach-imx/cpufreq.c index d8c75c3..387dc4c 100644 --- a/arch/arm/mach-imx/cpufreq.c +++ b/arch/arm/mach-imx/cpufreq.c @@ -87,13 +87,12 @@ static int mxc_set_target(struct cpufreq_policy *policy, freqs.old = clk_get_rate(cpu_clk) / 1000; freqs.new = freq_Hz / 1000; - freqs.cpu = 0; freqs.flags = 0; - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); ret = set_cpu_freq(freq_Hz); - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); return ret; } @@ -145,14 +144,11 @@ static int mxc_cpufreq_init(struct cpufreq_policy *policy) imx_freq_table[i].frequency = CPUFREQ_TABLE_END; policy->cur = clk_get_rate(cpu_clk) / 1000; - policy->min = policy->cpuinfo.min_freq = cpu_freq_khz_min; - policy->max = policy->cpuinfo.max_freq = cpu_freq_khz_max; /* Manual states, that PLL stabilizes in two CLK32 periods */ policy->cpuinfo.transition_latency = 2 * NANOSECOND / CLK32_FREQ; ret = cpufreq_frequency_table_cpuinfo(policy, imx_freq_table); - if (ret < 0) { printk(KERN_ERR "%s: failed to register i.MXC CPUfreq with error code %d\n", __func__, ret); diff --git a/arch/arm/mach-imx/cpuidle-imx5.c b/arch/arm/mach-imx/cpuidle-imx5.c new file mode 100644 index 0000000..5a47e3c --- /dev/null +++ b/arch/arm/mach-imx/cpuidle-imx5.c @@ -0,0 +1,37 @@ +/* + * Copyright (C) 2012 Freescale Semiconductor, Inc. + * + * 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/cpuidle.h> +#include <linux/module.h> +#include <asm/system_misc.h> + +static int imx5_cpuidle_enter(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int index) +{ + arm_pm_idle(); + return index; +} + +static struct cpuidle_driver imx5_cpuidle_driver = { + .name = "imx5_cpuidle", + .owner = THIS_MODULE, + .states[0] = { + .enter = imx5_cpuidle_enter, + .exit_latency = 2, + .target_residency = 1, + .flags = CPUIDLE_FLAG_TIME_VALID, + .name = "IMX5 SRPG", + .desc = "CPU state retained,powered off", + }, + .state_count = 1, +}; + +int __init imx5_cpuidle_init(void) +{ + return cpuidle_register(&imx5_cpuidle_driver, NULL); +} diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c index d533e26..23ddfb6 100644 --- a/arch/arm/mach-imx/cpuidle-imx6q.c +++ b/arch/arm/mach-imx/cpuidle-imx6q.c @@ -6,7 +6,6 @@ * published by the Free Software Foundation. */ -#include <linux/clockchips.h> #include <linux/cpuidle.h> #include <linux/module.h> #include <asm/cpuidle.h> @@ -21,10 +20,6 @@ static DEFINE_SPINLOCK(master_lock); static int imx6q_enter_wait(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { - int cpu = dev->cpu; - - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu); - if (atomic_inc_return(&master) == num_online_cpus()) { /* * With this lock, we prevent other cpu to exit and enter @@ -43,26 +38,13 @@ idle: cpu_do_idle(); done: atomic_dec(&master); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu); return index; } -/* - * For each cpu, setup the broadcast timer because local timer - * stops for the states other than WFI. - */ -static void imx6q_setup_broadcast_timer(void *arg) -{ - int cpu = smp_processor_id(); - - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &cpu); -} - static struct cpuidle_driver imx6q_cpuidle_driver = { .name = "imx6q_cpuidle", .owner = THIS_MODULE, - .en_core_tk_irqen = 1, .states = { /* WFI */ ARM_CPUIDLE_WFI_STATE, @@ -70,7 +52,8 @@ static struct cpuidle_driver imx6q_cpuidle_driver = { { .exit_latency = 50, .target_residency = 75, - .flags = CPUIDLE_FLAG_TIME_VALID, + .flags = CPUIDLE_FLAG_TIME_VALID | + CPUIDLE_FLAG_TIMER_STOP, .enter = imx6q_enter_wait, .name = "WAIT", .desc = "Clock off", @@ -88,8 +71,5 @@ int __init imx6q_cpuidle_init(void) /* Set chicken bit to get a reliable WAIT mode support */ imx6q_set_chicken_bit(); - /* Configure the broadcast timer on each cpu */ - on_each_cpu(imx6q_setup_broadcast_timer, NULL, 1); - - return imx_cpuidle_init(&imx6q_cpuidle_driver); + return cpuidle_register(&imx6q_cpuidle_driver, NULL); } diff --git a/arch/arm/mach-imx/cpuidle.c b/arch/arm/mach-imx/cpuidle.c deleted file mode 100644 index d4cb511..0000000 --- a/arch/arm/mach-imx/cpuidle.c +++ /dev/null @@ -1,80 +0,0 @@ -/* - * Copyright 2012 Freescale Semiconductor, Inc. - * Copyright 2012 Linaro Ltd. - * - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ - -#include <linux/cpuidle.h> -#include <linux/err.h> -#include <linux/hrtimer.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/slab.h> - -static struct cpuidle_device __percpu * imx_cpuidle_devices; - -static void __init imx_cpuidle_devices_uninit(void) -{ - int cpu_id; - struct cpuidle_device *dev; - - for_each_possible_cpu(cpu_id) { - dev = per_cpu_ptr(imx_cpuidle_devices, cpu_id); - cpuidle_unregister_device(dev); - } - - free_percpu(imx_cpuidle_devices); -} - -int __init imx_cpuidle_init(struct cpuidle_driver *drv) -{ - struct cpuidle_device *dev; - int cpu_id, ret; - - if (drv->state_count > CPUIDLE_STATE_MAX) { - pr_err("%s: state_count exceeds maximum\n", __func__); - return -EINVAL; - } - - ret = cpuidle_register_driver(drv); - if (ret) { - pr_err("%s: Failed to register cpuidle driver with error: %d\n", - __func__, ret); - return ret; - } - - imx_cpuidle_devices = alloc_percpu(struct cpuidle_device); - if (imx_cpuidle_devices == NULL) { - ret = -ENOMEM; - goto unregister_drv; - } - - /* initialize state data for each cpuidle_device */ - for_each_possible_cpu(cpu_id) { - dev = per_cpu_ptr(imx_cpuidle_devices, cpu_id); - dev->cpu = cpu_id; - dev->state_count = drv->state_count; - - ret = cpuidle_register_device(dev); - if (ret) { - pr_err("%s: Failed to register cpu %u, error: %d\n", - __func__, cpu_id, ret); - goto uninit; - } - } - - return 0; - -uninit: - imx_cpuidle_devices_uninit(); - -unregister_drv: - cpuidle_unregister_driver(drv); - return ret; -} diff --git a/arch/arm/mach-imx/cpuidle.h b/arch/arm/mach-imx/cpuidle.h index e092d13..786f98e 100644 --- a/arch/arm/mach-imx/cpuidle.h +++ b/arch/arm/mach-imx/cpuidle.h @@ -10,18 +10,16 @@ * http://www.gnu.org/copyleft/gpl.html */ -#include <linux/cpuidle.h> - #ifdef CONFIG_CPU_IDLE -extern int imx_cpuidle_init(struct cpuidle_driver *drv); +extern int imx5_cpuidle_init(void); extern int imx6q_cpuidle_init(void); #else -static inline int imx_cpuidle_init(struct cpuidle_driver *drv) +static inline int imx5_cpuidle_init(void) { - return -ENODEV; + return 0; } static inline int imx6q_cpuidle_init(void) { - return -ENODEV; + return 0; } #endif diff --git a/arch/arm/mach-imx/pm-imx5.c b/arch/arm/mach-imx/pm-imx5.c index f67fd7e..82e79c6 100644 --- a/arch/arm/mach-imx/pm-imx5.c +++ b/arch/arm/mach-imx/pm-imx5.c @@ -149,33 +149,6 @@ static void imx5_pm_idle(void) imx5_cpu_do_idle(); } -static int imx5_cpuidle_enter(struct cpuidle_device *dev, - struct cpuidle_driver *drv, int idx) -{ - int ret; - - ret = imx5_cpu_do_idle(); - if (ret < 0) - return ret; - - return idx; -} - -static struct cpuidle_driver imx5_cpuidle_driver = { - .name = "imx5_cpuidle", - .owner = THIS_MODULE, - .en_core_tk_irqen = 1, - .states[0] = { - .enter = imx5_cpuidle_enter, - .exit_latency = 2, - .target_residency = 1, - .flags = CPUIDLE_FLAG_TIME_VALID, - .name = "IMX5 SRPG", - .desc = "CPU state retained,powered off", - }, - .state_count = 1, -}; - static int __init imx5_pm_common_init(void) { int ret; @@ -193,8 +166,7 @@ static int __init imx5_pm_common_init(void) /* Set the registers to the default cpu idle state. */ mx5_cpu_lp_set(IMX5_DEFAULT_CPU_IDLE_STATE); - imx_cpuidle_init(&imx5_cpuidle_driver); - return 0; + return imx5_cpuidle_init(); } void __init imx51_pm_init(void) diff --git a/arch/arm/mach-integrator/Makefile b/arch/arm/mach-integrator/Makefile index 5521d18..d14d6b7 100644 --- a/arch/arm/mach-integrator/Makefile +++ b/arch/arm/mach-integrator/Makefile @@ -9,5 +9,4 @@ obj-$(CONFIG_ARCH_INTEGRATOR_AP) += integrator_ap.o obj-$(CONFIG_ARCH_INTEGRATOR_CP) += integrator_cp.o obj-$(CONFIG_PCI) += pci_v3.o pci.o -obj-$(CONFIG_CPU_FREQ_INTEGRATOR) += cpu.o obj-$(CONFIG_INTEGRATOR_IMPD1) += impd1.o diff --git a/arch/arm/mach-integrator/cpu.c b/arch/arm/mach-integrator/cpu.c deleted file mode 100644 index 590c192..0000000 --- a/arch/arm/mach-integrator/cpu.c +++ /dev/null @@ -1,224 +0,0 @@ -/* - * linux/arch/arm/mach-integrator/cpu.c - * - * Copyright (C) 2001-2002 Deep Blue Solutions Ltd. - * - * 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. - * - * CPU support functions - */ -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/cpufreq.h> -#include <linux/sched.h> -#include <linux/smp.h> -#include <linux/init.h> -#include <linux/io.h> - -#include <mach/hardware.h> -#include <mach/platform.h> -#include <asm/mach-types.h> -#include <asm/hardware/icst.h> - -static struct cpufreq_driver integrator_driver; - -#define CM_ID __io_address(INTEGRATOR_HDR_ID) -#define CM_OSC __io_address(INTEGRATOR_HDR_OSC) -#define CM_STAT __io_address(INTEGRATOR_HDR_STAT) -#define CM_LOCK __io_address(INTEGRATOR_HDR_LOCK) - -static const struct icst_params lclk_params = { - .ref = 24000000, - .vco_max = ICST525_VCO_MAX_5V, - .vco_min = ICST525_VCO_MIN, - .vd_min = 8, - .vd_max = 132, - .rd_min = 24, - .rd_max = 24, - .s2div = icst525_s2div, - .idx2s = icst525_idx2s, -}; - -static const struct icst_params cclk_params = { - .ref = 24000000, - .vco_max = ICST525_VCO_MAX_5V, - .vco_min = ICST525_VCO_MIN, - .vd_min = 12, - .vd_max = 160, - .rd_min = 24, - .rd_max = 24, - .s2div = icst525_s2div, - .idx2s = icst525_idx2s, -}; - -/* - * Validate the speed policy. - */ -static int integrator_verify_policy(struct cpufreq_policy *policy) -{ - struct icst_vco vco; - - cpufreq_verify_within_limits(policy, - policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); - - vco = icst_hz_to_vco(&cclk_params, policy->max * 1000); - policy->max = icst_hz(&cclk_params, vco) / 1000; - - vco = icst_hz_to_vco(&cclk_params, policy->min * 1000); - policy->min = icst_hz(&cclk_params, vco) / 1000; - - cpufreq_verify_within_limits(policy, - policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); - - return 0; -} - - -static int integrator_set_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - cpumask_t cpus_allowed; - int cpu = policy->cpu; - struct icst_vco vco; - struct cpufreq_freqs freqs; - u_int cm_osc; - - /* - * Save this threads cpus_allowed mask. - */ - cpus_allowed = current->cpus_allowed; - - /* - * Bind to the specified CPU. When this call returns, - * we should be running on the right CPU. - */ - set_cpus_allowed(current, cpumask_of_cpu(cpu)); - BUG_ON(cpu != smp_processor_id()); - - /* get current setting */ - cm_osc = __raw_readl(CM_OSC); - - if (machine_is_integrator()) { - vco.s = (cm_osc >> 8) & 7; - } else if (machine_is_cintegrator()) { - vco.s = 1; - } - vco.v = cm_osc & 255; - vco.r = 22; - freqs.old = icst_hz(&cclk_params, vco) / 1000; - - /* icst_hz_to_vco rounds down -- so we need the next - * larger freq in case of CPUFREQ_RELATION_L. - */ - if (relation == CPUFREQ_RELATION_L) - target_freq += 999; - if (target_freq > policy->max) - target_freq = policy->max; - vco = icst_hz_to_vco(&cclk_params, target_freq * 1000); - freqs.new = icst_hz(&cclk_params, vco) / 1000; - - freqs.cpu = policy->cpu; - - if (freqs.old == freqs.new) { - set_cpus_allowed(current, cpus_allowed); - return 0; - } - - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - cm_osc = __raw_readl(CM_OSC); - - if (machine_is_integrator()) { - cm_osc &= 0xfffff800; - cm_osc |= vco.s << 8; - } else if (machine_is_cintegrator()) { - cm_osc &= 0xffffff00; - } - cm_osc |= vco.v; - - __raw_writel(0xa05f, CM_LOCK); - __raw_writel(cm_osc, CM_OSC); - __raw_writel(0, CM_LOCK); - - /* - * Restore the CPUs allowed mask. - */ - set_cpus_allowed(current, cpus_allowed); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - return 0; -} - -static unsigned int integrator_get(unsigned int cpu) -{ - cpumask_t cpus_allowed; - unsigned int current_freq; - u_int cm_osc; - struct icst_vco vco; - - cpus_allowed = current->cpus_allowed; - - set_cpus_allowed(current, cpumask_of_cpu(cpu)); - BUG_ON(cpu != smp_processor_id()); - - /* detect memory etc. */ - cm_osc = __raw_readl(CM_OSC); - - if (machine_is_integrator()) { - vco.s = (cm_osc >> 8) & 7; - } else { - vco.s = 1; - } - vco.v = cm_osc & 255; - vco.r = 22; - - current_freq = icst_hz(&cclk_params, vco) / 1000; /* current freq */ - - set_cpus_allowed(current, cpus_allowed); - - return current_freq; -} - -static int integrator_cpufreq_init(struct cpufreq_policy *policy) -{ - - /* set default policy and cpuinfo */ - policy->cpuinfo.max_freq = 160000; - policy->cpuinfo.min_freq = 12000; - policy->cpuinfo.transition_latency = 1000000; /* 1 ms, assumed */ - policy->cur = policy->min = policy->max = integrator_get(policy->cpu); - - return 0; -} - -static struct cpufreq_driver integrator_driver = { - .verify = integrator_verify_policy, - .target = integrator_set_target, - .get = integrator_get, - .init = integrator_cpufreq_init, - .name = "integrator", -}; - -static int __init integrator_cpu_init(void) -{ - return cpufreq_register_driver(&integrator_driver); -} - -static void __exit integrator_cpu_exit(void) -{ - cpufreq_unregister_driver(&integrator_driver); -} - -MODULE_AUTHOR ("Russell M. King"); -MODULE_DESCRIPTION ("cpufreq driver for ARM Integrator CPUs"); -MODULE_LICENSE ("GPL"); - -module_init(integrator_cpu_init); -module_exit(integrator_cpu_exit); diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c index 1dbeb7c..6600cff 100644 --- a/arch/arm/mach-ixp4xx/common.c +++ b/arch/arm/mach-ixp4xx/common.c @@ -29,6 +29,7 @@ #include <linux/io.h> #include <linux/export.h> #include <linux/gpio.h> +#include <linux/cpu.h> #include <mach/udc.h> #include <mach/hardware.h> @@ -239,7 +240,7 @@ void __init ixp4xx_init_irq(void) * ixp4xx does not implement the XScale PWRMODE register * so it must not call cpu_do_idle(). */ - disable_hlt(); + cpu_idle_poll_ctrl(true); /* Route all sources to IRQ instead of FIQ */ *IXP4XX_ICLR = 0x0; diff --git a/arch/arm/mach-mmp/aspenite.c b/arch/arm/mach-mmp/aspenite.c index 9f64d56..76901f4 100644 --- a/arch/arm/mach-mmp/aspenite.c +++ b/arch/arm/mach-mmp/aspenite.c @@ -223,13 +223,7 @@ static struct pxa27x_keypad_platform_data aspenite_keypad_info __initdata = { }; #if defined(CONFIG_USB_EHCI_MV) -static char *pxa168_sph_clock_name[] = { - [0] = "PXA168-USBCLK", -}; - static struct mv_usb_platform_data pxa168_sph_pdata = { - .clknum = 1, - .clkname = pxa168_sph_clock_name, .mode = MV_USB_MODE_HOST, .phy_init = pxa_usb_phy_init, .phy_deinit = pxa_usb_phy_deinit, diff --git a/arch/arm/mach-mmp/ttc_dkb.c b/arch/arm/mach-mmp/ttc_dkb.c index 22a9058..6528a5f 100644 --- a/arch/arm/mach-mmp/ttc_dkb.c +++ b/arch/arm/mach-mmp/ttc_dkb.c @@ -162,13 +162,7 @@ static struct i2c_board_info ttc_dkb_i2c_info[] = { #ifdef CONFIG_USB_SUPPORT #if defined(CONFIG_USB_MV_UDC) || defined(CONFIG_USB_EHCI_MV_U2O) -static char *pxa910_usb_clock_name[] = { - [0] = "U2OCLK", -}; - static struct mv_usb_platform_data ttc_usb_pdata = { - .clknum = 1, - .clkname = pxa910_usb_clock_name, .vbus = NULL, .mode = MV_USB_MODE_OTG, .otg_force_a_bus_req = 1, diff --git a/arch/arm/mach-mvebu/irq-armada-370-xp.c b/arch/arm/mach-mvebu/irq-armada-370-xp.c index d5970f5..830139a 100644 --- a/arch/arm/mach-mvebu/irq-armada-370-xp.c +++ b/arch/arm/mach-mvebu/irq-armada-370-xp.c @@ -57,7 +57,7 @@ static struct irq_domain *armada_370_xp_mpic_domain; /* * In SMP mode: * For shared global interrupts, mask/unmask global enable bit - * For CPU interrtups, mask/unmask the calling CPU's bit + * For CPU interrupts, mask/unmask the calling CPU's bit */ static void armada_370_xp_irq_mask(struct irq_data *d) { diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c index 7a7690a..db37f49 100644 --- a/arch/arm/mach-omap1/pm.c +++ b/arch/arm/mach-omap1/pm.c @@ -43,6 +43,7 @@ #include <linux/module.h> #include <linux/io.h> #include <linux/atomic.h> +#include <linux/cpu.h> #include <asm/fncpy.h> #include <asm/system_misc.h> @@ -584,8 +585,7 @@ static void omap_pm_init_proc(void) static int omap_pm_prepare(void) { /* We cannot sleep in idle until we have resumed */ - disable_hlt(); - + cpu_idle_poll_ctrl(true); return 0; } @@ -621,7 +621,7 @@ static int omap_pm_enter(suspend_state_t state) static void omap_pm_finish(void) { - enable_hlt(); + cpu_idle_poll_ctrl(false); } diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h index d6ba13e..14522d0 100644 --- a/arch/arm/mach-omap2/common.h +++ b/arch/arm/mach-omap2/common.h @@ -249,7 +249,6 @@ extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state); extern int omap4_finish_suspend(unsigned long cpu_state); extern void omap4_cpu_resume(void); extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state); -extern u32 omap4_mpuss_read_prev_context_state(void); #else static inline int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state) @@ -277,10 +276,6 @@ static inline int omap4_finish_suspend(unsigned long cpu_state) static inline void omap4_cpu_resume(void) {} -static inline u32 omap4_mpuss_read_prev_context_state(void) -{ - return 0; -} #endif struct omap_sdrc_params; diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c index 80392fc..cca045c 100644 --- a/arch/arm/mach-omap2/cpuidle34xx.c +++ b/arch/arm/mach-omap2/cpuidle34xx.c @@ -26,6 +26,7 @@ #include <linux/cpuidle.h> #include <linux/export.h> #include <linux/cpu_pm.h> +#include <asm/cpuidle.h> #include "powerdomain.h" #include "clockdomain.h" @@ -99,11 +100,15 @@ static struct omap3_idle_statedata omap3_idle_data[] = { }, }; -/* Private functions */ - -static int __omap3_enter_idle(struct cpuidle_device *dev, - struct cpuidle_driver *drv, - int index) +/** + * omap3_enter_idle - Programs OMAP3 to enter the specified state + * @dev: cpuidle device + * @drv: cpuidle driver + * @index: the index of state to be entered + */ +static int omap3_enter_idle(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index) { struct omap3_idle_statedata *cx = &omap3_idle_data[index]; @@ -149,22 +154,6 @@ return_sleep_time: } /** - * omap3_enter_idle - Programs OMAP3 to enter the specified state - * @dev: cpuidle device - * @drv: cpuidle driver - * @index: the index of state to be entered - * - * Called from the CPUidle framework to program the device to the - * specified target state selected by the governor. - */ -static inline int omap3_enter_idle(struct cpuidle_device *dev, - struct cpuidle_driver *drv, - int index) -{ - return cpuidle_wrap_enter(dev, drv, index, __omap3_enter_idle); -} - -/** * next_valid_state - Find next valid C-state * @dev: cpuidle device * @drv: cpuidle driver @@ -271,11 +260,9 @@ static int omap3_enter_idle_bm(struct cpuidle_device *dev, return ret; } -static DEFINE_PER_CPU(struct cpuidle_device, omap3_idle_dev); - static struct cpuidle_driver omap3_idle_driver = { - .name = "omap3_idle", - .owner = THIS_MODULE, + .name = "omap3_idle", + .owner = THIS_MODULE, .states = { { .enter = omap3_enter_idle_bm, @@ -348,8 +335,6 @@ static struct cpuidle_driver omap3_idle_driver = { */ int __init omap3_idle_init(void) { - struct cpuidle_device *dev; - mpu_pd = pwrdm_lookup("mpu_pwrdm"); core_pd = pwrdm_lookup("core_pwrdm"); per_pd = pwrdm_lookup("per_pwrdm"); @@ -358,16 +343,5 @@ int __init omap3_idle_init(void) if (!mpu_pd || !core_pd || !per_pd || !cam_pd) return -ENODEV; - cpuidle_register_driver(&omap3_idle_driver); - - dev = &per_cpu(omap3_idle_dev, smp_processor_id()); - dev->cpu = 0; - - if (cpuidle_register_device(dev)) { - printk(KERN_ERR "%s: CPUidle register device failed\n", - __func__); - return -EIO; - } - - return 0; + return cpuidle_register(&omap3_idle_driver, NULL); } diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c index d639aef..5a286b5 100644 --- a/arch/arm/mach-omap2/cpuidle44xx.c +++ b/arch/arm/mach-omap2/cpuidle44xx.c @@ -1,7 +1,7 @@ /* - * OMAP4 CPU idle Routines + * OMAP4+ CPU idle Routines * - * Copyright (C) 2011 Texas Instruments, Inc. + * Copyright (C) 2011-2013 Texas Instruments, Inc. * Santosh Shilimkar <santosh.shilimkar@ti.com> * Rajendra Nayak <rnayak@ti.com> * @@ -14,8 +14,8 @@ #include <linux/cpuidle.h> #include <linux/cpu_pm.h> #include <linux/export.h> -#include <linux/clockchips.h> +#include <asm/cpuidle.h> #include <asm/proc-fns.h> #include "common.h" @@ -24,13 +24,13 @@ #include "clockdomain.h" /* Machine specific information */ -struct omap4_idle_statedata { +struct idle_statedata { u32 cpu_state; u32 mpu_logic_state; u32 mpu_state; }; -static struct omap4_idle_statedata omap4_idle_data[] = { +static struct idle_statedata omap4_idle_data[] = { { .cpu_state = PWRDM_POWER_ON, .mpu_state = PWRDM_POWER_ON, @@ -53,11 +53,12 @@ static struct clockdomain *cpu_clkdm[NR_CPUS]; static atomic_t abort_barrier; static bool cpu_done[NR_CPUS]; +static struct idle_statedata *state_ptr = &omap4_idle_data[0]; /* Private functions */ /** - * omap4_enter_idle_coupled_[simple/coupled] - OMAP4 cpuidle entry functions + * omap_enter_idle_[simple/coupled] - OMAP4PLUS cpuidle entry functions * @dev: cpuidle device * @drv: cpuidle driver * @index: the index of state to be entered @@ -66,7 +67,7 @@ static bool cpu_done[NR_CPUS]; * specified low power state selected by the governor. * Returns the amount of time spent in the low power state. */ -static int omap4_enter_idle_simple(struct cpuidle_device *dev, +static int omap_enter_idle_simple(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { @@ -77,12 +78,11 @@ static int omap4_enter_idle_simple(struct cpuidle_device *dev, return index; } -static int omap4_enter_idle_coupled(struct cpuidle_device *dev, +static int omap_enter_idle_coupled(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { - struct omap4_idle_statedata *cx = &omap4_idle_data[index]; - int cpu_id = smp_processor_id(); + struct idle_statedata *cx = state_ptr + index; local_fiq_disable(); @@ -109,8 +109,6 @@ static int omap4_enter_idle_coupled(struct cpuidle_device *dev, } } - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu_id); - /* * Call idle CPU PM enter notifier chain so that * VFP and per CPU interrupt context is saved. @@ -149,11 +147,10 @@ static int omap4_enter_idle_coupled(struct cpuidle_device *dev, * Call idle CPU cluster PM exit notifier chain * to restore GIC and wakeupgen context. */ - if (omap4_mpuss_read_prev_context_state()) + if ((cx->mpu_state == PWRDM_POWER_RET) && + (cx->mpu_logic_state == PWRDM_POWER_OFF)) cpu_cluster_pm_exit(); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu_id); - fail: cpuidle_coupled_parallel_barrier(dev, &abort_barrier); cpu_done[dev->cpu] = false; @@ -163,49 +160,38 @@ fail: return index; } -/* - * For each cpu, setup the broadcast timer because local timers - * stops for the states above C1. - */ -static void omap_setup_broadcast_timer(void *arg) -{ - int cpu = smp_processor_id(); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &cpu); -} - -static DEFINE_PER_CPU(struct cpuidle_device, omap4_idle_dev); - static struct cpuidle_driver omap4_idle_driver = { .name = "omap4_idle", .owner = THIS_MODULE, - .en_core_tk_irqen = 1, .states = { { /* C1 - CPU0 ON + CPU1 ON + MPU ON */ .exit_latency = 2 + 2, .target_residency = 5, .flags = CPUIDLE_FLAG_TIME_VALID, - .enter = omap4_enter_idle_simple, + .enter = omap_enter_idle_simple, .name = "C1", - .desc = "MPUSS ON" + .desc = "CPUx ON, MPUSS ON" }, { /* C2 - CPU0 OFF + CPU1 OFF + MPU CSWR */ .exit_latency = 328 + 440, .target_residency = 960, - .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED, - .enter = omap4_enter_idle_coupled, + .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED | + CPUIDLE_FLAG_TIMER_STOP, + .enter = omap_enter_idle_coupled, .name = "C2", - .desc = "MPUSS CSWR", + .desc = "CPUx OFF, MPUSS CSWR", }, { /* C3 - CPU0 OFF + CPU1 OFF + MPU OSWR */ .exit_latency = 460 + 518, .target_residency = 1100, - .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED, - .enter = omap4_enter_idle_coupled, + .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED | + CPUIDLE_FLAG_TIMER_STOP, + .enter = omap_enter_idle_coupled, .name = "C3", - .desc = "MPUSS OSWR", + .desc = "CPUx OFF, MPUSS OSWR", }, }, .state_count = ARRAY_SIZE(omap4_idle_data), @@ -215,16 +201,13 @@ static struct cpuidle_driver omap4_idle_driver = { /* Public functions */ /** - * omap4_idle_init - Init routine for OMAP4 idle + * omap4_idle_init - Init routine for OMAP4+ idle * - * Registers the OMAP4 specific cpuidle driver to the cpuidle + * Registers the OMAP4+ specific cpuidle driver to the cpuidle * framework with the valid set of states. */ int __init omap4_idle_init(void) { - struct cpuidle_device *dev; - unsigned int cpu_id = 0; - mpu_pd = pwrdm_lookup("mpu_pwrdm"); cpu_pd[0] = pwrdm_lookup("cpu0_pwrdm"); cpu_pd[1] = pwrdm_lookup("cpu1_pwrdm"); @@ -236,22 +219,5 @@ int __init omap4_idle_init(void) if (!cpu_clkdm[0] || !cpu_clkdm[1]) return -ENODEV; - /* Configure the broadcast timer on each cpu */ - on_each_cpu(omap_setup_broadcast_timer, NULL, 1); - - for_each_cpu(cpu_id, cpu_online_mask) { - dev = &per_cpu(omap4_idle_dev, cpu_id); - dev->cpu = cpu_id; -#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED - dev->coupled_cpus = *cpu_online_mask; -#endif - cpuidle_register_driver(&omap4_idle_driver); - - if (cpuidle_register_device(dev)) { - pr_err("%s: CPUidle register failed\n", __func__); - return -EIO; - } - } - - return 0; + return cpuidle_register(&omap4_idle_driver, cpu_online_mask); } diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c index 8bcb64b..e80327b 100644 --- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c +++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c @@ -139,20 +139,6 @@ static inline void cpu_clear_prev_logic_pwrst(unsigned int cpu_id) } } -/** - * omap4_mpuss_read_prev_context_state: - * Function returns the MPUSS previous context state - */ -u32 omap4_mpuss_read_prev_context_state(void) -{ - u32 reg; - - reg = omap4_prminst_read_inst_reg(OMAP4430_PRM_PARTITION, - OMAP4430_PRM_MPU_INST, OMAP4_RM_MPU_MPU_CONTEXT_OFFSET); - reg &= OMAP4430_LOSTCONTEXT_DFF_MASK; - return reg; -} - /* * Store the CPU cluster state for L2X0 low power operations. */ diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index a202a47..e512253 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -138,6 +138,7 @@ #include <linux/spinlock.h> #include <linux/slab.h> #include <linux/bootmem.h> +#include <linux/cpu.h> #include <asm/system_misc.h> @@ -2157,7 +2158,7 @@ static int _enable(struct omap_hwmod *oh) if (soc_ops.enable_module) soc_ops.enable_module(oh); if (oh->flags & HWMOD_BLOCK_WFI) - disable_hlt(); + cpu_idle_poll_ctrl(true); if (soc_ops.update_context_lost) soc_ops.update_context_lost(oh); @@ -2221,7 +2222,7 @@ static int _idle(struct omap_hwmod *oh) _del_initiator_dep(oh, mpu_oh); if (oh->flags & HWMOD_BLOCK_WFI) - enable_hlt(); + cpu_idle_poll_ctrl(false); if (soc_ops.disable_module) soc_ops.disable_module(oh); @@ -2331,7 +2332,7 @@ static int _shutdown(struct omap_hwmod *oh) _del_initiator_dep(oh, mpu_oh); /* XXX what about the other system initiators here? dma, dsp */ if (oh->flags & HWMOD_BLOCK_WFI) - enable_hlt(); + cpu_idle_poll_ctrl(false); if (soc_ops.disable_module) soc_ops.disable_module(oh); _disable_clocks(oh); diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 9e05765..eaba9dc 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -2714,16 +2714,22 @@ static struct omap_ocp2scp_dev ocp2scp_dev_attr[] = { { } }; -static struct omap_hwmod_opt_clk ocp2scp_usb_phy_opt_clks[] = { - { .role = "48mhz", .clk = "ocp2scp_usb_phy_phy_48m" }, -}; - /* ocp2scp_usb_phy */ static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = { .name = "ocp2scp_usb_phy", .class = &omap44xx_ocp2scp_hwmod_class, .clkdm_name = "l3_init_clkdm", - .main_clk = "func_48m_fclk", + /* + * ocp2scp_usb_phy_phy_48m is provided by the OMAP4 PRCM IP + * block as an "optional clock," and normally should never be + * specified as the main_clk for an OMAP IP block. However it + * turns out that this clock is actually the main clock for + * the ocp2scp_usb_phy IP block: + * http://lists.infradead.org/pipermail/linux-arm-kernel/2012-September/119943.html + * So listing ocp2scp_usb_phy_phy_48m as a main_clk here seems + * to be the best workaround. + */ + .main_clk = "ocp2scp_usb_phy_phy_48m", .prcm = { .omap4 = { .clkctrl_offs = OMAP4_CM_L3INIT_USBPHYOCP2SCP_CLKCTRL_OFFSET, @@ -2732,8 +2738,6 @@ static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = { }, }, .dev_attr = ocp2scp_dev_attr, - .opt_clks = ocp2scp_usb_phy_opt_clks, - .opt_clks_cnt = ARRAY_SIZE(ocp2scp_usb_phy_opt_clks), }; /* diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c index 673a4c1..e742118 100644 --- a/arch/arm/mach-omap2/pm.c +++ b/arch/arm/mach-omap2/pm.c @@ -218,7 +218,7 @@ static int omap_pm_enter(suspend_state_t suspend_state) static int omap_pm_begin(suspend_state_t state) { - disable_hlt(); + cpu_idle_poll_ctrl(true); if (cpu_is_omap34xx()) omap_prcm_irq_prepare(); return 0; @@ -226,8 +226,7 @@ static int omap_pm_begin(suspend_state_t state) static void omap_pm_end(void) { - enable_hlt(); - return; + cpu_idle_poll_ctrl(false); } static void omap_pm_finish(void) @@ -265,6 +264,12 @@ static void __init omap4_init_voltages(void) omap2_set_init_voltage("iva", "dpll_iva_m5x2_ck", "iva"); } +static inline void omap_init_cpufreq(void) +{ + struct platform_device_info devinfo = { .name = "omap-cpufreq", }; + platform_device_register_full(&devinfo); +} + static int __init omap2_common_pm_init(void) { if (!of_have_populated_dt()) @@ -294,6 +299,9 @@ int __init omap2_common_pm_late_init(void) /* Smartreflex device init */ omap_devinit_smartreflex(); + + /* cpufreq dummy device instantiation */ + omap_init_cpufreq(); } #ifdef CONFIG_SUSPEND diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c index ea62e75..152a10c 100644 --- a/arch/arm/mach-omap2/pm44xx.c +++ b/arch/arm/mach-omap2/pm44xx.c @@ -126,8 +126,8 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused) * omap_default_idle - OMAP4 default ilde routine.' * * Implements OMAP4 memory, IO ordering requirements which can't be addressed - * with default cpu_do_idle() hook. Used by all CPUs with !CONFIG_CPUIDLE and - * by secondary CPU with CONFIG_CPUIDLE. + * with default cpu_do_idle() hook. Used by all CPUs with !CONFIG_CPU_IDLE and + * by secondary CPU with CONFIG_CPU_IDLE. */ static void omap_default_idle(void) { diff --git a/arch/arm/mach-orion5x/board-dt.c b/arch/arm/mach-orion5x/board-dt.c index 35a8014..94fbb81 100644 --- a/arch/arm/mach-orion5x/board-dt.c +++ b/arch/arm/mach-orion5x/board-dt.c @@ -14,6 +14,7 @@ #include <linux/init.h> #include <linux/of.h> #include <linux/of_platform.h> +#include <linux/cpu.h> #include <asm/system_misc.h> #include <asm/mach/arch.h> #include <mach/orion5x.h> @@ -52,7 +53,7 @@ static void __init orion5x_dt_init(void) */ if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) { printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n"); - disable_hlt(); + cpu_idle_poll_ctrl(true); } if (of_machine_is_compatible("lacie,ethernet-disk-mini-v2")) diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c index d068f14..ad71c8a 100644 --- a/arch/arm/mach-orion5x/common.c +++ b/arch/arm/mach-orion5x/common.c @@ -293,7 +293,7 @@ void __init orion5x_init(void) */ if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) { printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n"); - disable_hlt(); + cpu_idle_poll_ctrl(true); } /* diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index 12c5005..648867a 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -7,12 +7,6 @@ obj-y += clock.o devices.o generic.o irq.o \ time.o reset.o obj-$(CONFIG_PM) += pm.o sleep.o standby.o -ifeq ($(CONFIG_CPU_FREQ),y) -obj-$(CONFIG_PXA25x) += cpufreq-pxa2xx.o -obj-$(CONFIG_PXA27x) += cpufreq-pxa2xx.o -obj-$(CONFIG_PXA3xx) += cpufreq-pxa3xx.o -endif - # Generic drivers that other drivers may depend upon # SoC-specific code diff --git a/arch/arm/mach-pxa/cpufreq-pxa2xx.c b/arch/arm/mach-pxa/cpufreq-pxa2xx.c deleted file mode 100644 index 6a7aeab..0000000 --- a/arch/arm/mach-pxa/cpufreq-pxa2xx.c +++ /dev/null @@ -1,494 +0,0 @@ -/* - * linux/arch/arm/mach-pxa/cpufreq-pxa2xx.c - * - * Copyright (C) 2002,2003 Intrinsyc Software - * - * 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 - * - * History: - * 31-Jul-2002 : Initial version [FB] - * 29-Jan-2003 : added PXA255 support [FB] - * 20-Apr-2003 : ported to v2.5 (Dustin McIntire, Sensoria Corp.) - * - * Note: - * This driver may change the memory bus clock rate, but will not do any - * platform specific access timing changes... for example if you have flash - * memory connected to CS0, you will need to register a platform specific - * notifier which will adjust the memory access strobes to maintain a - * minimum strobe width. - * - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/init.h> -#include <linux/cpufreq.h> -#include <linux/err.h> -#include <linux/regulator/consumer.h> -#include <linux/io.h> - -#include <mach/pxa2xx-regs.h> -#include <mach/smemc.h> - -#ifdef DEBUG -static unsigned int freq_debug; -module_param(freq_debug, uint, 0); -MODULE_PARM_DESC(freq_debug, "Set the debug messages to on=1/off=0"); -#else -#define freq_debug 0 -#endif - -static struct regulator *vcc_core; - -static unsigned int pxa27x_maxfreq; -module_param(pxa27x_maxfreq, uint, 0); -MODULE_PARM_DESC(pxa27x_maxfreq, "Set the pxa27x maxfreq in MHz" - "(typically 624=>pxa270, 416=>pxa271, 520=>pxa272)"); - -typedef struct { - unsigned int khz; - unsigned int membus; - unsigned int cccr; - unsigned int div2; - unsigned int cclkcfg; - int vmin; - int vmax; -} pxa_freqs_t; - -/* Define the refresh period in mSec for the SDRAM and the number of rows */ -#define SDRAM_TREF 64 /* standard 64ms SDRAM */ -static unsigned int sdram_rows; - -#define CCLKCFG_TURBO 0x1 -#define CCLKCFG_FCS 0x2 -#define CCLKCFG_HALFTURBO 0x4 -#define CCLKCFG_FASTBUS 0x8 -#define MDREFR_DB2_MASK (MDREFR_K2DB2 | MDREFR_K1DB2) -#define MDREFR_DRI_MASK 0xFFF - -#define MDCNFG_DRAC2(mdcnfg) (((mdcnfg) >> 21) & 0x3) -#define MDCNFG_DRAC0(mdcnfg) (((mdcnfg) >> 5) & 0x3) - -/* - * PXA255 definitions - */ -/* Use the run mode frequencies for the CPUFREQ_POLICY_PERFORMANCE policy */ -#define CCLKCFG CCLKCFG_TURBO | CCLKCFG_FCS - -static pxa_freqs_t pxa255_run_freqs[] = -{ - /* CPU MEMBUS CCCR DIV2 CCLKCFG run turbo PXbus SDRAM */ - { 99500, 99500, 0x121, 1, CCLKCFG, -1, -1}, /* 99, 99, 50, 50 */ - {132700, 132700, 0x123, 1, CCLKCFG, -1, -1}, /* 133, 133, 66, 66 */ - {199100, 99500, 0x141, 0, CCLKCFG, -1, -1}, /* 199, 199, 99, 99 */ - {265400, 132700, 0x143, 1, CCLKCFG, -1, -1}, /* 265, 265, 133, 66 */ - {331800, 165900, 0x145, 1, CCLKCFG, -1, -1}, /* 331, 331, 166, 83 */ - {398100, 99500, 0x161, 0, CCLKCFG, -1, -1}, /* 398, 398, 196, 99 */ -}; - -/* Use the turbo mode frequencies for the CPUFREQ_POLICY_POWERSAVE policy */ -static pxa_freqs_t pxa255_turbo_freqs[] = -{ - /* CPU MEMBUS CCCR DIV2 CCLKCFG run turbo PXbus SDRAM */ - { 99500, 99500, 0x121, 1, CCLKCFG, -1, -1}, /* 99, 99, 50, 50 */ - {199100, 99500, 0x221, 0, CCLKCFG, -1, -1}, /* 99, 199, 50, 99 */ - {298500, 99500, 0x321, 0, CCLKCFG, -1, -1}, /* 99, 287, 50, 99 */ - {298600, 99500, 0x1c1, 0, CCLKCFG, -1, -1}, /* 199, 287, 99, 99 */ - {398100, 99500, 0x241, 0, CCLKCFG, -1, -1}, /* 199, 398, 99, 99 */ -}; - -#define NUM_PXA25x_RUN_FREQS ARRAY_SIZE(pxa255_run_freqs) -#define NUM_PXA25x_TURBO_FREQS ARRAY_SIZE(pxa255_turbo_freqs) - -static struct cpufreq_frequency_table - pxa255_run_freq_table[NUM_PXA25x_RUN_FREQS+1]; -static struct cpufreq_frequency_table - pxa255_turbo_freq_table[NUM_PXA25x_TURBO_FREQS+1]; - -static unsigned int pxa255_turbo_table; -module_param(pxa255_turbo_table, uint, 0); -MODULE_PARM_DESC(pxa255_turbo_table, "Selects the frequency table (0 = run table, !0 = turbo table)"); - -/* - * PXA270 definitions - * - * For the PXA27x: - * Control variables are A, L, 2N for CCCR; B, HT, T for CLKCFG. - * - * A = 0 => memory controller clock from table 3-7, - * A = 1 => memory controller clock = system bus clock - * Run mode frequency = 13 MHz * L - * Turbo mode frequency = 13 MHz * L * N - * System bus frequency = 13 MHz * L / (B + 1) - * - * In CCCR: - * A = 1 - * L = 16 oscillator to run mode ratio - * 2N = 6 2 * (turbo mode to run mode ratio) - * - * In CCLKCFG: - * B = 1 Fast bus mode - * HT = 0 Half-Turbo mode - * T = 1 Turbo mode - * - * For now, just support some of the combinations in table 3-7 of - * PXA27x Processor Family Developer's Manual to simplify frequency - * change sequences. - */ -#define PXA27x_CCCR(A, L, N2) (A << 25 | N2 << 7 | L) -#define CCLKCFG2(B, HT, T) \ - (CCLKCFG_FCS | \ - ((B) ? CCLKCFG_FASTBUS : 0) | \ - ((HT) ? CCLKCFG_HALFTURBO : 0) | \ - ((T) ? CCLKCFG_TURBO : 0)) - -static pxa_freqs_t pxa27x_freqs[] = { - {104000, 104000, PXA27x_CCCR(1, 8, 2), 0, CCLKCFG2(1, 0, 1), 900000, 1705000 }, - {156000, 104000, PXA27x_CCCR(1, 8, 3), 0, CCLKCFG2(1, 0, 1), 1000000, 1705000 }, - {208000, 208000, PXA27x_CCCR(0, 16, 2), 1, CCLKCFG2(0, 0, 1), 1180000, 1705000 }, - {312000, 208000, PXA27x_CCCR(1, 16, 3), 1, CCLKCFG2(1, 0, 1), 1250000, 1705000 }, - {416000, 208000, PXA27x_CCCR(1, 16, 4), 1, CCLKCFG2(1, 0, 1), 1350000, 1705000 }, - {520000, 208000, PXA27x_CCCR(1, 16, 5), 1, CCLKCFG2(1, 0, 1), 1450000, 1705000 }, - {624000, 208000, PXA27x_CCCR(1, 16, 6), 1, CCLKCFG2(1, 0, 1), 1550000, 1705000 } -}; - -#define NUM_PXA27x_FREQS ARRAY_SIZE(pxa27x_freqs) -static struct cpufreq_frequency_table - pxa27x_freq_table[NUM_PXA27x_FREQS+1]; - -extern unsigned get_clk_frequency_khz(int info); - -#ifdef CONFIG_REGULATOR - -static int pxa_cpufreq_change_voltage(pxa_freqs_t *pxa_freq) -{ - int ret = 0; - int vmin, vmax; - - if (!cpu_is_pxa27x()) - return 0; - - vmin = pxa_freq->vmin; - vmax = pxa_freq->vmax; - if ((vmin == -1) || (vmax == -1)) - return 0; - - ret = regulator_set_voltage(vcc_core, vmin, vmax); - if (ret) - pr_err("cpufreq: Failed to set vcc_core in [%dmV..%dmV]\n", - vmin, vmax); - return ret; -} - -static __init void pxa_cpufreq_init_voltages(void) -{ - vcc_core = regulator_get(NULL, "vcc_core"); - if (IS_ERR(vcc_core)) { - pr_info("cpufreq: Didn't find vcc_core regulator\n"); - vcc_core = NULL; - } else { - pr_info("cpufreq: Found vcc_core regulator\n"); - } -} -#else -static int pxa_cpufreq_change_voltage(pxa_freqs_t *pxa_freq) -{ - return 0; -} - -static __init void pxa_cpufreq_init_voltages(void) { } -#endif - -static void find_freq_tables(struct cpufreq_frequency_table **freq_table, - pxa_freqs_t **pxa_freqs) -{ - if (cpu_is_pxa25x()) { - if (!pxa255_turbo_table) { - *pxa_freqs = pxa255_run_freqs; - *freq_table = pxa255_run_freq_table; - } else { - *pxa_freqs = pxa255_turbo_freqs; - *freq_table = pxa255_turbo_freq_table; - } - } - if (cpu_is_pxa27x()) { - *pxa_freqs = pxa27x_freqs; - *freq_table = pxa27x_freq_table; - } -} - -static void pxa27x_guess_max_freq(void) -{ - if (!pxa27x_maxfreq) { - pxa27x_maxfreq = 416000; - printk(KERN_INFO "PXA CPU 27x max frequency not defined " - "(pxa27x_maxfreq), assuming pxa271 with %dkHz maxfreq\n", - pxa27x_maxfreq); - } else { - pxa27x_maxfreq *= 1000; - } -} - -static void init_sdram_rows(void) -{ - uint32_t mdcnfg = __raw_readl(MDCNFG); - unsigned int drac2 = 0, drac0 = 0; - - if (mdcnfg & (MDCNFG_DE2 | MDCNFG_DE3)) - drac2 = MDCNFG_DRAC2(mdcnfg); - - if (mdcnfg & (MDCNFG_DE0 | MDCNFG_DE1)) - drac0 = MDCNFG_DRAC0(mdcnfg); - - sdram_rows = 1 << (11 + max(drac0, drac2)); -} - -static u32 mdrefr_dri(unsigned int freq) -{ - u32 interval = freq * SDRAM_TREF / sdram_rows; - - return (interval - (cpu_is_pxa27x() ? 31 : 0)) / 32; -} - -/* find a valid frequency point */ -static int pxa_verify_policy(struct cpufreq_policy *policy) -{ - struct cpufreq_frequency_table *pxa_freqs_table; - pxa_freqs_t *pxa_freqs; - int ret; - - find_freq_tables(&pxa_freqs_table, &pxa_freqs); - ret = cpufreq_frequency_table_verify(policy, pxa_freqs_table); - - if (freq_debug) - pr_debug("Verified CPU policy: %dKhz min to %dKhz max\n", - policy->min, policy->max); - - return ret; -} - -static unsigned int pxa_cpufreq_get(unsigned int cpu) -{ - return get_clk_frequency_khz(0); -} - -static int pxa_set_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - struct cpufreq_frequency_table *pxa_freqs_table; - pxa_freqs_t *pxa_freq_settings; - struct cpufreq_freqs freqs; - unsigned int idx; - unsigned long flags; - unsigned int new_freq_cpu, new_freq_mem; - unsigned int unused, preset_mdrefr, postset_mdrefr, cclkcfg; - int ret = 0; - - /* Get the current policy */ - find_freq_tables(&pxa_freqs_table, &pxa_freq_settings); - - /* Lookup the next frequency */ - if (cpufreq_frequency_table_target(policy, pxa_freqs_table, - target_freq, relation, &idx)) { - return -EINVAL; - } - - new_freq_cpu = pxa_freq_settings[idx].khz; - new_freq_mem = pxa_freq_settings[idx].membus; - freqs.old = policy->cur; - freqs.new = new_freq_cpu; - freqs.cpu = policy->cpu; - - if (freq_debug) - pr_debug("Changing CPU frequency to %d Mhz, (SDRAM %d Mhz)\n", - freqs.new / 1000, (pxa_freq_settings[idx].div2) ? - (new_freq_mem / 2000) : (new_freq_mem / 1000)); - - if (vcc_core && freqs.new > freqs.old) - ret = pxa_cpufreq_change_voltage(&pxa_freq_settings[idx]); - if (ret) - return ret; - /* - * Tell everyone what we're about to do... - * you should add a notify client with any platform specific - * Vcc changing capability - */ - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - /* Calculate the next MDREFR. If we're slowing down the SDRAM clock - * we need to preset the smaller DRI before the change. If we're - * speeding up we need to set the larger DRI value after the change. - */ - preset_mdrefr = postset_mdrefr = __raw_readl(MDREFR); - if ((preset_mdrefr & MDREFR_DRI_MASK) > mdrefr_dri(new_freq_mem)) { - preset_mdrefr = (preset_mdrefr & ~MDREFR_DRI_MASK); - preset_mdrefr |= mdrefr_dri(new_freq_mem); - } - postset_mdrefr = - (postset_mdrefr & ~MDREFR_DRI_MASK) | mdrefr_dri(new_freq_mem); - - /* If we're dividing the memory clock by two for the SDRAM clock, this - * must be set prior to the change. Clearing the divide must be done - * after the change. - */ - if (pxa_freq_settings[idx].div2) { - preset_mdrefr |= MDREFR_DB2_MASK; - postset_mdrefr |= MDREFR_DB2_MASK; - } else { - postset_mdrefr &= ~MDREFR_DB2_MASK; - } - - local_irq_save(flags); - - /* Set new the CCCR and prepare CCLKCFG */ - CCCR = pxa_freq_settings[idx].cccr; - cclkcfg = pxa_freq_settings[idx].cclkcfg; - - asm volatile(" \n\ - ldr r4, [%1] /* load MDREFR */ \n\ - b 2f \n\ - .align 5 \n\ -1: \n\ - str %3, [%1] /* preset the MDREFR */ \n\ - mcr p14, 0, %2, c6, c0, 0 /* set CCLKCFG[FCS] */ \n\ - str %4, [%1] /* postset the MDREFR */ \n\ - \n\ - b 3f \n\ -2: b 1b \n\ -3: nop \n\ - " - : "=&r" (unused) - : "r" (MDREFR), "r" (cclkcfg), - "r" (preset_mdrefr), "r" (postset_mdrefr) - : "r4", "r5"); - local_irq_restore(flags); - - /* - * Tell everyone what we've just done... - * you should add a notify client with any platform specific - * SDRAM refresh timer adjustments - */ - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - /* - * Even if voltage setting fails, we don't report it, as the frequency - * change succeeded. The voltage reduction is not a critical failure, - * only power savings will suffer from this. - * - * Note: if the voltage change fails, and a return value is returned, a - * bug is triggered (seems a deadlock). Should anybody find out where, - * the "return 0" should become a "return ret". - */ - if (vcc_core && freqs.new < freqs.old) - ret = pxa_cpufreq_change_voltage(&pxa_freq_settings[idx]); - - return 0; -} - -static int pxa_cpufreq_init(struct cpufreq_policy *policy) -{ - int i; - unsigned int freq; - struct cpufreq_frequency_table *pxa255_freq_table; - pxa_freqs_t *pxa255_freqs; - - /* try to guess pxa27x cpu */ - if (cpu_is_pxa27x()) - pxa27x_guess_max_freq(); - - pxa_cpufreq_init_voltages(); - - init_sdram_rows(); - - /* set default policy and cpuinfo */ - policy->cpuinfo.transition_latency = 1000; /* FIXME: 1 ms, assumed */ - policy->cur = get_clk_frequency_khz(0); /* current freq */ - policy->min = policy->max = policy->cur; - - /* Generate pxa25x the run cpufreq_frequency_table struct */ - for (i = 0; i < NUM_PXA25x_RUN_FREQS; i++) { - pxa255_run_freq_table[i].frequency = pxa255_run_freqs[i].khz; - pxa255_run_freq_table[i].index = i; - } - pxa255_run_freq_table[i].frequency = CPUFREQ_TABLE_END; - - /* Generate pxa25x the turbo cpufreq_frequency_table struct */ - for (i = 0; i < NUM_PXA25x_TURBO_FREQS; i++) { - pxa255_turbo_freq_table[i].frequency = - pxa255_turbo_freqs[i].khz; - pxa255_turbo_freq_table[i].index = i; - } - pxa255_turbo_freq_table[i].frequency = CPUFREQ_TABLE_END; - - pxa255_turbo_table = !!pxa255_turbo_table; - - /* Generate the pxa27x cpufreq_frequency_table struct */ - for (i = 0; i < NUM_PXA27x_FREQS; i++) { - freq = pxa27x_freqs[i].khz; - if (freq > pxa27x_maxfreq) - break; - pxa27x_freq_table[i].frequency = freq; - pxa27x_freq_table[i].index = i; - } - pxa27x_freq_table[i].index = i; - pxa27x_freq_table[i].frequency = CPUFREQ_TABLE_END; - - /* - * Set the policy's minimum and maximum frequencies from the tables - * just constructed. This sets cpuinfo.mxx_freq, min and max. - */ - if (cpu_is_pxa25x()) { - find_freq_tables(&pxa255_freq_table, &pxa255_freqs); - pr_info("PXA255 cpufreq using %s frequency table\n", - pxa255_turbo_table ? "turbo" : "run"); - cpufreq_frequency_table_cpuinfo(policy, pxa255_freq_table); - } - else if (cpu_is_pxa27x()) - cpufreq_frequency_table_cpuinfo(policy, pxa27x_freq_table); - - printk(KERN_INFO "PXA CPU frequency change support initialized\n"); - - return 0; -} - -static struct cpufreq_driver pxa_cpufreq_driver = { - .verify = pxa_verify_policy, - .target = pxa_set_target, - .init = pxa_cpufreq_init, - .get = pxa_cpufreq_get, - .name = "PXA2xx", -}; - -static int __init pxa_cpu_init(void) -{ - int ret = -ENODEV; - if (cpu_is_pxa25x() || cpu_is_pxa27x()) - ret = cpufreq_register_driver(&pxa_cpufreq_driver); - return ret; -} - -static void __exit pxa_cpu_exit(void) -{ - cpufreq_unregister_driver(&pxa_cpufreq_driver); -} - - -MODULE_AUTHOR("Intrinsyc Software Inc."); -MODULE_DESCRIPTION("CPU frequency changing driver for the PXA architecture"); -MODULE_LICENSE("GPL"); -module_init(pxa_cpu_init); -module_exit(pxa_cpu_exit); diff --git a/arch/arm/mach-pxa/cpufreq-pxa3xx.c b/arch/arm/mach-pxa/cpufreq-pxa3xx.c deleted file mode 100644 index b85b4ab..0000000 --- a/arch/arm/mach-pxa/cpufreq-pxa3xx.c +++ /dev/null @@ -1,258 +0,0 @@ -/* - * linux/arch/arm/mach-pxa/cpufreq-pxa3xx.c - * - * Copyright (C) 2008 Marvell International Ltd. - * - * 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. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/init.h> -#include <linux/cpufreq.h> -#include <linux/slab.h> -#include <linux/io.h> - -#include <mach/pxa3xx-regs.h> - -#include "generic.h" - -#define HSS_104M (0) -#define HSS_156M (1) -#define HSS_208M (2) -#define HSS_312M (3) - -#define SMCFS_78M (0) -#define SMCFS_104M (2) -#define SMCFS_208M (5) - -#define SFLFS_104M (0) -#define SFLFS_156M (1) -#define SFLFS_208M (2) -#define SFLFS_312M (3) - -#define XSPCLK_156M (0) -#define XSPCLK_NONE (3) - -#define DMCFS_26M (0) -#define DMCFS_260M (3) - -struct pxa3xx_freq_info { - unsigned int cpufreq_mhz; - unsigned int core_xl : 5; - unsigned int core_xn : 3; - unsigned int hss : 2; - unsigned int dmcfs : 2; - unsigned int smcfs : 3; - unsigned int sflfs : 2; - unsigned int df_clkdiv : 3; - - int vcc_core; /* in mV */ - int vcc_sram; /* in mV */ -}; - -#define OP(cpufreq, _xl, _xn, _hss, _dmc, _smc, _sfl, _dfi, vcore, vsram) \ -{ \ - .cpufreq_mhz = cpufreq, \ - .core_xl = _xl, \ - .core_xn = _xn, \ - .hss = HSS_##_hss##M, \ - .dmcfs = DMCFS_##_dmc##M, \ - .smcfs = SMCFS_##_smc##M, \ - .sflfs = SFLFS_##_sfl##M, \ - .df_clkdiv = _dfi, \ - .vcc_core = vcore, \ - .vcc_sram = vsram, \ -} - -static struct pxa3xx_freq_info pxa300_freqs[] = { - /* CPU XL XN HSS DMEM SMEM SRAM DFI VCC_CORE VCC_SRAM */ - OP(104, 8, 1, 104, 260, 78, 104, 3, 1000, 1100), /* 104MHz */ - OP(208, 16, 1, 104, 260, 104, 156, 2, 1000, 1100), /* 208MHz */ - OP(416, 16, 2, 156, 260, 104, 208, 2, 1100, 1200), /* 416MHz */ - OP(624, 24, 2, 208, 260, 208, 312, 3, 1375, 1400), /* 624MHz */ -}; - -static struct pxa3xx_freq_info pxa320_freqs[] = { - /* CPU XL XN HSS DMEM SMEM SRAM DFI VCC_CORE VCC_SRAM */ - OP(104, 8, 1, 104, 260, 78, 104, 3, 1000, 1100), /* 104MHz */ - OP(208, 16, 1, 104, 260, 104, 156, 2, 1000, 1100), /* 208MHz */ - OP(416, 16, 2, 156, 260, 104, 208, 2, 1100, 1200), /* 416MHz */ - OP(624, 24, 2, 208, 260, 208, 312, 3, 1375, 1400), /* 624MHz */ - OP(806, 31, 2, 208, 260, 208, 312, 3, 1400, 1400), /* 806MHz */ -}; - -static unsigned int pxa3xx_freqs_num; -static struct pxa3xx_freq_info *pxa3xx_freqs; -static struct cpufreq_frequency_table *pxa3xx_freqs_table; - -static int setup_freqs_table(struct cpufreq_policy *policy, - struct pxa3xx_freq_info *freqs, int num) -{ - struct cpufreq_frequency_table *table; - int i; - - table = kzalloc((num + 1) * sizeof(*table), GFP_KERNEL); - if (table == NULL) - return -ENOMEM; - - for (i = 0; i < num; i++) { - table[i].index = i; - table[i].frequency = freqs[i].cpufreq_mhz * 1000; - } - table[num].index = i; - table[num].frequency = CPUFREQ_TABLE_END; - - pxa3xx_freqs = freqs; - pxa3xx_freqs_num = num; - pxa3xx_freqs_table = table; - - return cpufreq_frequency_table_cpuinfo(policy, table); -} - -static void __update_core_freq(struct pxa3xx_freq_info *info) -{ - uint32_t mask = ACCR_XN_MASK | ACCR_XL_MASK; - uint32_t accr = ACCR; - uint32_t xclkcfg; - - accr &= ~(ACCR_XN_MASK | ACCR_XL_MASK | ACCR_XSPCLK_MASK); - accr |= ACCR_XN(info->core_xn) | ACCR_XL(info->core_xl); - - /* No clock until core PLL is re-locked */ - accr |= ACCR_XSPCLK(XSPCLK_NONE); - - xclkcfg = (info->core_xn == 2) ? 0x3 : 0x2; /* turbo bit */ - - ACCR = accr; - __asm__("mcr p14, 0, %0, c6, c0, 0\n" : : "r"(xclkcfg)); - - while ((ACSR & mask) != (accr & mask)) - cpu_relax(); -} - -static void __update_bus_freq(struct pxa3xx_freq_info *info) -{ - uint32_t mask; - uint32_t accr = ACCR; - - mask = ACCR_SMCFS_MASK | ACCR_SFLFS_MASK | ACCR_HSS_MASK | - ACCR_DMCFS_MASK; - - accr &= ~mask; - accr |= ACCR_SMCFS(info->smcfs) | ACCR_SFLFS(info->sflfs) | - ACCR_HSS(info->hss) | ACCR_DMCFS(info->dmcfs); - - ACCR = accr; - - while ((ACSR & mask) != (accr & mask)) - cpu_relax(); -} - -static int pxa3xx_cpufreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, pxa3xx_freqs_table); -} - -static unsigned int pxa3xx_cpufreq_get(unsigned int cpu) -{ - return pxa3xx_get_clk_frequency_khz(0); -} - -static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - struct pxa3xx_freq_info *next; - struct cpufreq_freqs freqs; - unsigned long flags; - int idx; - - if (policy->cpu != 0) - return -EINVAL; - - /* Lookup the next frequency */ - if (cpufreq_frequency_table_target(policy, pxa3xx_freqs_table, - target_freq, relation, &idx)) - return -EINVAL; - - next = &pxa3xx_freqs[idx]; - - freqs.old = policy->cur; - freqs.new = next->cpufreq_mhz * 1000; - freqs.cpu = policy->cpu; - - pr_debug("CPU frequency from %d MHz to %d MHz%s\n", - freqs.old / 1000, freqs.new / 1000, - (freqs.old == freqs.new) ? " (skipped)" : ""); - - if (freqs.old == target_freq) - return 0; - - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - local_irq_save(flags); - __update_core_freq(next); - __update_bus_freq(next); - local_irq_restore(flags); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - return 0; -} - -static int pxa3xx_cpufreq_init(struct cpufreq_policy *policy) -{ - int ret = -EINVAL; - - /* set default policy and cpuinfo */ - policy->cpuinfo.min_freq = 104000; - policy->cpuinfo.max_freq = (cpu_is_pxa320()) ? 806000 : 624000; - policy->cpuinfo.transition_latency = 1000; /* FIXME: 1 ms, assumed */ - policy->max = pxa3xx_get_clk_frequency_khz(0); - policy->cur = policy->min = policy->max; - - if (cpu_is_pxa300() || cpu_is_pxa310()) - ret = setup_freqs_table(policy, ARRAY_AND_SIZE(pxa300_freqs)); - - if (cpu_is_pxa320()) - ret = setup_freqs_table(policy, ARRAY_AND_SIZE(pxa320_freqs)); - - if (ret) { - pr_err("failed to setup frequency table\n"); - return ret; - } - - pr_info("CPUFREQ support for PXA3xx initialized\n"); - return 0; -} - -static struct cpufreq_driver pxa3xx_cpufreq_driver = { - .verify = pxa3xx_cpufreq_verify, - .target = pxa3xx_cpufreq_set, - .init = pxa3xx_cpufreq_init, - .get = pxa3xx_cpufreq_get, - .name = "pxa3xx-cpufreq", -}; - -static int __init cpufreq_init(void) -{ - if (cpu_is_pxa3xx()) - return cpufreq_register_driver(&pxa3xx_cpufreq_driver); - - return 0; -} -module_init(cpufreq_init); - -static void __exit cpufreq_exit(void) -{ - cpufreq_unregister_driver(&pxa3xx_cpufreq_driver); -} -module_exit(cpufreq_exit); - -MODULE_DESCRIPTION("CPU frequency scaling driver for PXA3xx"); -MODULE_LICENSE("GPL"); diff --git a/arch/arm/mach-pxa/include/mach/generic.h b/arch/arm/mach-pxa/include/mach/generic.h new file mode 100644 index 0000000..665542e --- /dev/null +++ b/arch/arm/mach-pxa/include/mach/generic.h @@ -0,0 +1 @@ +#include "../../generic.h" diff --git a/arch/arm/mach-s3c24xx/clock-s3c2440.c b/arch/arm/mach-s3c24xx/clock-s3c2440.c index 04b87ec..1069b56 100644 --- a/arch/arm/mach-s3c24xx/clock-s3c2440.c +++ b/arch/arm/mach-s3c24xx/clock-s3c2440.c @@ -123,6 +123,11 @@ static struct clk s3c2440_clk_ac97 = { .ctrlbit = S3C2440_CLKCON_AC97, }; +#define S3C24XX_VA_UART0 (S3C_VA_UART) +#define S3C24XX_VA_UART1 (S3C_VA_UART + 0x4000 ) +#define S3C24XX_VA_UART2 (S3C_VA_UART + 0x8000 ) +#define S3C24XX_VA_UART3 (S3C_VA_UART + 0xC000 ) + static unsigned long s3c2440_fclk_n_getrate(struct clk *clk) { unsigned long ucon0, ucon1, ucon2, divisor; diff --git a/arch/arm/mach-s3c24xx/common.c b/arch/arm/mach-s3c24xx/common.c index 6bcf87f..92e6094 100644 --- a/arch/arm/mach-s3c24xx/common.c +++ b/arch/arm/mach-s3c24xx/common.c @@ -239,6 +239,11 @@ void __init s3c24xx_init_io(struct map_desc *mach_desc, int size) /* Serial port registrations */ +#define S3C2410_PA_UART0 (S3C24XX_PA_UART) +#define S3C2410_PA_UART1 (S3C24XX_PA_UART + 0x4000 ) +#define S3C2410_PA_UART2 (S3C24XX_PA_UART + 0x8000 ) +#define S3C2443_PA_UART3 (S3C24XX_PA_UART + 0xC000 ) + static struct resource s3c2410_uart0_resource[] = { [0] = DEFINE_RES_MEM(S3C2410_PA_UART0, SZ_16K), [1] = DEFINE_RES_NAMED(IRQ_S3CUART_RX0, \ diff --git a/arch/arm/mach-s3c24xx/cpufreq.c b/arch/arm/mach-s3c24xx/cpufreq.c index 5f181e7..3c0e78e 100644 --- a/arch/arm/mach-s3c24xx/cpufreq.c +++ b/arch/arm/mach-s3c24xx/cpufreq.c @@ -204,7 +204,6 @@ static int s3c_cpufreq_settarget(struct cpufreq_policy *policy, freqs.old = cpu_cur.freq; freqs.new = cpu_new.freq; - freqs.freqs.cpu = 0; freqs.freqs.old = cpu_cur.freq.armclk / 1000; freqs.freqs.new = cpu_new.freq.armclk / 1000; @@ -218,9 +217,7 @@ static int s3c_cpufreq_settarget(struct cpufreq_policy *policy, s3c_cpufreq_updateclk(clk_pclk, cpu_new.freq.pclk); /* start the frequency change */ - - if (policy) - cpufreq_notify_transition(&freqs.freqs, CPUFREQ_PRECHANGE); + cpufreq_notify_transition(policy, &freqs.freqs, CPUFREQ_PRECHANGE); /* If hclk is staying the same, then we do not need to * re-write the IO or the refresh timings whilst we are changing @@ -264,8 +261,7 @@ static int s3c_cpufreq_settarget(struct cpufreq_policy *policy, local_irq_restore(flags); /* notify everyone we've done this */ - if (policy) - cpufreq_notify_transition(&freqs.freqs, CPUFREQ_POSTCHANGE); + cpufreq_notify_transition(policy, &freqs.freqs, CPUFREQ_POSTCHANGE); s3c_freq_dbg("%s: finished\n", __func__); return 0; diff --git a/arch/arm/mach-s3c64xx/cpuidle.c b/arch/arm/mach-s3c64xx/cpuidle.c index ead5fab..3c8ab07 100644 --- a/arch/arm/mach-s3c64xx/cpuidle.c +++ b/arch/arm/mach-s3c64xx/cpuidle.c @@ -40,12 +40,9 @@ static int s3c64xx_enter_idle(struct cpuidle_device *dev, return index; } -static DEFINE_PER_CPU(struct cpuidle_device, s3c64xx_cpuidle_device); - static struct cpuidle_driver s3c64xx_cpuidle_driver = { .name = "s3c64xx_cpuidle", .owner = THIS_MODULE, - .en_core_tk_irqen = 1, .states = { { .enter = s3c64xx_enter_idle, @@ -61,16 +58,6 @@ static struct cpuidle_driver s3c64xx_cpuidle_driver = { static int __init s3c64xx_init_cpuidle(void) { - int ret; - - cpuidle_register_driver(&s3c64xx_cpuidle_driver); - - ret = cpuidle_register_device(&s3c64xx_cpuidle_device); - if (ret) { - pr_err("Failed to register cpuidle device: %d\n", ret); - return ret; - } - - return 0; + return cpuidle_register(&s3c64xx_cpuidle_driver, NULL); } device_initcall(s3c64xx_init_cpuidle); diff --git a/arch/arm/mach-s3c64xx/setup-usb-phy.c b/arch/arm/mach-s3c64xx/setup-usb-phy.c index c8174d9..ca960bd 100644 --- a/arch/arm/mach-s3c64xx/setup-usb-phy.c +++ b/arch/arm/mach-s3c64xx/setup-usb-phy.c @@ -76,7 +76,7 @@ static int s3c_usb_otgphy_exit(struct platform_device *pdev) int s5p_usb_phy_init(struct platform_device *pdev, int type) { - if (type == S5P_USB_PHY_DEVICE) + if (type == USB_PHY_TYPE_DEVICE) return s3c_usb_otgphy_init(pdev); return -EINVAL; @@ -84,7 +84,7 @@ int s5p_usb_phy_init(struct platform_device *pdev, int type) int s5p_usb_phy_exit(struct platform_device *pdev, int type) { - if (type == S5P_USB_PHY_DEVICE) + if (type == USB_PHY_TYPE_DEVICE) return s3c_usb_otgphy_exit(pdev); return -EINVAL; diff --git a/arch/arm/mach-s5pv210/setup-usb-phy.c b/arch/arm/mach-s5pv210/setup-usb-phy.c index 356a090..b2ee533 100644 --- a/arch/arm/mach-s5pv210/setup-usb-phy.c +++ b/arch/arm/mach-s5pv210/setup-usb-phy.c @@ -80,7 +80,7 @@ static int s5pv210_usb_otgphy_exit(struct platform_device *pdev) int s5p_usb_phy_init(struct platform_device *pdev, int type) { - if (type == S5P_USB_PHY_DEVICE) + if (type == USB_PHY_TYPE_DEVICE) return s5pv210_usb_otgphy_init(pdev); return -EINVAL; @@ -88,7 +88,7 @@ int s5p_usb_phy_init(struct platform_device *pdev, int type) int s5p_usb_phy_exit(struct platform_device *pdev, int type) { - if (type == S5P_USB_PHY_DEVICE) + if (type == USB_PHY_TYPE_DEVICE) return s5pv210_usb_otgphy_exit(pdev); return -EINVAL; diff --git a/arch/arm/mach-sa1100/Kconfig b/arch/arm/mach-sa1100/Kconfig index ca14dbd..04f9784 100644 --- a/arch/arm/mach-sa1100/Kconfig +++ b/arch/arm/mach-sa1100/Kconfig @@ -4,7 +4,7 @@ menu "SA11x0 Implementations" config SA1100_ASSABET bool "Assabet" - select CPU_FREQ_SA1110 + select ARM_SA1110_CPUFREQ help Say Y here if you are using the Intel(R) StrongARM(R) SA-1110 Microprocessor Development Board (also known as the Assabet). @@ -20,7 +20,7 @@ config ASSABET_NEPONSET config SA1100_CERF bool "CerfBoard" - select CPU_FREQ_SA1110 + select ARM_SA1110_CPUFREQ help The Intrinsyc CerfBoard is based on the StrongARM 1110 (Discontinued). More information is available at: @@ -47,7 +47,7 @@ endchoice config SA1100_COLLIE bool "Sharp Zaurus SL5500" - # FIXME: select CPU_FREQ_SA11x0 + # FIXME: select ARM_SA11x0_CPUFREQ select SHARP_LOCOMO select SHARP_PARAM select SHARP_SCOOP @@ -56,7 +56,7 @@ config SA1100_COLLIE config SA1100_H3100 bool "Compaq iPAQ H3100" - select CPU_FREQ_SA1110 + select ARM_SA1110_CPUFREQ select HTC_EGPIO help Say Y here if you intend to run this kernel on the Compaq iPAQ @@ -67,7 +67,7 @@ config SA1100_H3100 config SA1100_H3600 bool "Compaq iPAQ H3600/H3700" - select CPU_FREQ_SA1110 + select ARM_SA1110_CPUFREQ select HTC_EGPIO help Say Y here if you intend to run this kernel on the Compaq iPAQ @@ -78,7 +78,7 @@ config SA1100_H3600 config SA1100_BADGE4 bool "HP Labs BadgePAD 4" - select CPU_FREQ_SA1100 + select ARM_SA1100_CPUFREQ select SA1111 help Say Y here if you want to build a kernel for the HP Laboratories @@ -86,7 +86,7 @@ config SA1100_BADGE4 config SA1100_JORNADA720 bool "HP Jornada 720" - # FIXME: select CPU_FREQ_SA11x0 + # FIXME: select ARM_SA11x0_CPUFREQ select SA1111 help Say Y here if you want to build a kernel for the HP Jornada 720 @@ -105,14 +105,14 @@ config SA1100_JORNADA720_SSP config SA1100_HACKKIT bool "HackKit Core CPU Board" - select CPU_FREQ_SA1100 + select ARM_SA1100_CPUFREQ help Say Y here to support the HackKit Core CPU Board <http://hackkit.eletztrick.de>; config SA1100_LART bool "LART" - select CPU_FREQ_SA1100 + select ARM_SA1100_CPUFREQ help Say Y here if you are using the Linux Advanced Radio Terminal (also known as the LART). See <http://www.lartmaker.nl/> for @@ -120,7 +120,7 @@ config SA1100_LART config SA1100_NANOENGINE bool "nanoEngine" - select CPU_FREQ_SA1110 + select ARM_SA1110_CPUFREQ select PCI select PCI_NANOENGINE help @@ -130,7 +130,7 @@ config SA1100_NANOENGINE config SA1100_PLEB bool "PLEB" - select CPU_FREQ_SA1100 + select ARM_SA1100_CPUFREQ help Say Y here if you are using version 1 of the Portable Linux Embedded Board (also known as PLEB). @@ -139,7 +139,7 @@ config SA1100_PLEB config SA1100_SHANNON bool "Shannon" - select CPU_FREQ_SA1100 + select ARM_SA1100_CPUFREQ help The Shannon (also known as a Tuxscreen, and also as a IS2630) was a limited edition webphone produced by Philips. The Shannon is a SA1100 @@ -148,7 +148,7 @@ config SA1100_SHANNON config SA1100_SIMPAD bool "Simpad" - select CPU_FREQ_SA1110 + select ARM_SA1110_CPUFREQ help The SIEMENS webpad SIMpad is based on the StrongARM 1110. There are two different versions CL4 and SL4. CL4 has 32MB RAM and 16MB diff --git a/arch/arm/mach-sa1100/Makefile b/arch/arm/mach-sa1100/Makefile index 1aed9e7..2732eef 100644 --- a/arch/arm/mach-sa1100/Makefile +++ b/arch/arm/mach-sa1100/Makefile @@ -8,9 +8,6 @@ obj-m := obj-n := obj- := -obj-$(CONFIG_CPU_FREQ_SA1100) += cpu-sa1100.o -obj-$(CONFIG_CPU_FREQ_SA1110) += cpu-sa1110.o - # Specific board support obj-$(CONFIG_SA1100_ASSABET) += assabet.o obj-$(CONFIG_ASSABET_NEPONSET) += neponset.o diff --git a/arch/arm/mach-sa1100/cpu-sa1100.c b/arch/arm/mach-sa1100/cpu-sa1100.c deleted file mode 100644 index e8f4d1e..0000000 --- a/arch/arm/mach-sa1100/cpu-sa1100.c +++ /dev/null @@ -1,249 +0,0 @@ -/* - * cpu-sa1100.c: clock scaling for the SA1100 - * - * Copyright (C) 2000 2001, The Delft University of Technology - * - * Authors: - * - Johan Pouwelse (J.A.Pouwelse@its.tudelft.nl): initial version - * - Erik Mouw (J.A.K.Mouw@its.tudelft.nl): - * - major rewrite for linux-2.3.99 - * - rewritten for the more generic power management scheme in - * linux-2.4.5-rmk1 - * - * This software has been developed while working on the LART - * computing board (http://www.lartmaker.nl/), which is - * sponsored by the Mobile Multi-media Communications - * (http://www.mobimedia.org/) and Ubiquitous Communications - * (http://www.ubicom.tudelft.nl/) projects. - * - * The authors can be reached at: - * - * Erik Mouw - * Information and Communication Theory Group - * Faculty of Information Technology and Systems - * Delft University of Technology - * P.O. Box 5031 - * 2600 GA Delft - * The Netherlands - * - * - * 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 - * - * - * Theory of operations - * ==================== - * - * Clock scaling can be used to lower the power consumption of the CPU - * core. This will give you a somewhat longer running time. - * - * The SA-1100 has a single register to change the core clock speed: - * - * PPCR 0x90020014 PLL config - * - * However, the DRAM timings are closely related to the core clock - * speed, so we need to change these, too. The used registers are: - * - * MDCNFG 0xA0000000 DRAM config - * MDCAS0 0xA0000004 Access waveform - * MDCAS1 0xA0000008 Access waveform - * MDCAS2 0xA000000C Access waveform - * - * Care must be taken to change the DRAM parameters the correct way, - * because otherwise the DRAM becomes unusable and the kernel will - * crash. - * - * The simple solution to avoid a kernel crash is to put the actual - * clock change in ROM and jump to that code from the kernel. The main - * disadvantage is that the ROM has to be modified, which is not - * possible on all SA-1100 platforms. Another disadvantage is that - * jumping to ROM makes clock switching unnecessary complicated. - * - * The idea behind this driver is that the memory configuration can be - * changed while running from DRAM (even with interrupts turned on!) - * as long as all re-configuration steps yield a valid DRAM - * configuration. The advantages are clear: it will run on all SA-1100 - * platforms, and the code is very simple. - * - * If you really want to understand what is going on in - * sa1100_update_dram_timings(), you'll have to read sections 8.2, - * 9.5.7.3, and 10.2 from the "Intel StrongARM SA-1100 Microprocessor - * Developers Manual" (available for free from Intel). - * - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/cpufreq.h> -#include <linux/io.h> - -#include <asm/cputype.h> - -#include <mach/hardware.h> - -#include "generic.h" - -struct sa1100_dram_regs { - int speed; - u32 mdcnfg; - u32 mdcas0; - u32 mdcas1; - u32 mdcas2; -}; - - -static struct cpufreq_driver sa1100_driver; - -static struct sa1100_dram_regs sa1100_dram_settings[] = { - /*speed, mdcnfg, mdcas0, mdcas1, mdcas2, clock freq */ - { 59000, 0x00dc88a3, 0xcccccccf, 0xfffffffc, 0xffffffff},/* 59.0 MHz */ - { 73700, 0x011490a3, 0xcccccccf, 0xfffffffc, 0xffffffff},/* 73.7 MHz */ - { 88500, 0x014e90a3, 0xcccccccf, 0xfffffffc, 0xffffffff},/* 88.5 MHz */ - {103200, 0x01889923, 0xcccccccf, 0xfffffffc, 0xffffffff},/* 103.2 MHz */ - {118000, 0x01c29923, 0x9999998f, 0xfffffff9, 0xffffffff},/* 118.0 MHz */ - {132700, 0x01fb2123, 0x9999998f, 0xfffffff9, 0xffffffff},/* 132.7 MHz */ - {147500, 0x02352123, 0x3333330f, 0xfffffff3, 0xffffffff},/* 147.5 MHz */ - {162200, 0x026b29a3, 0x38e38e1f, 0xfff8e38e, 0xffffffff},/* 162.2 MHz */ - {176900, 0x02a329a3, 0x71c71c1f, 0xfff1c71c, 0xffffffff},/* 176.9 MHz */ - {191700, 0x02dd31a3, 0xe38e383f, 0xffe38e38, 0xffffffff},/* 191.7 MHz */ - {206400, 0x03153223, 0xc71c703f, 0xffc71c71, 0xffffffff},/* 206.4 MHz */ - {221200, 0x034fba23, 0xc71c703f, 0xffc71c71, 0xffffffff},/* 221.2 MHz */ - {235900, 0x03853a23, 0xe1e1e07f, 0xe1e1e1e1, 0xffffffe1},/* 235.9 MHz */ - {250700, 0x03bf3aa3, 0xc3c3c07f, 0xc3c3c3c3, 0xffffffc3},/* 250.7 MHz */ - {265400, 0x03f7c2a3, 0xc3c3c07f, 0xc3c3c3c3, 0xffffffc3},/* 265.4 MHz */ - {280200, 0x0431c2a3, 0x878780ff, 0x87878787, 0xffffff87},/* 280.2 MHz */ - { 0, 0, 0, 0, 0 } /* last entry */ -}; - -static void sa1100_update_dram_timings(int current_speed, int new_speed) -{ - struct sa1100_dram_regs *settings = sa1100_dram_settings; - - /* find speed */ - while (settings->speed != 0) { - if (new_speed == settings->speed) - break; - - settings++; - } - - if (settings->speed == 0) { - panic("%s: couldn't find dram setting for speed %d\n", - __func__, new_speed); - } - - /* No risk, no fun: run with interrupts on! */ - if (new_speed > current_speed) { - /* We're going FASTER, so first relax the memory - * timings before changing the core frequency - */ - - /* Half the memory access clock */ - MDCNFG |= MDCNFG_CDB2; - - /* The order of these statements IS important, keep 8 - * pulses!! - */ - MDCAS2 = settings->mdcas2; - MDCAS1 = settings->mdcas1; - MDCAS0 = settings->mdcas0; - MDCNFG = settings->mdcnfg; - } else { - /* We're going SLOWER: first decrease the core - * frequency and then tighten the memory settings. - */ - - /* Half the memory access clock */ - MDCNFG |= MDCNFG_CDB2; - - /* The order of these statements IS important, keep 8 - * pulses!! - */ - MDCAS0 = settings->mdcas0; - MDCAS1 = settings->mdcas1; - MDCAS2 = settings->mdcas2; - MDCNFG = settings->mdcnfg; - } -} - -static int sa1100_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int cur = sa11x0_getspeed(0); - unsigned int new_ppcr; - struct cpufreq_freqs freqs; - - new_ppcr = sa11x0_freq_to_ppcr(target_freq); - switch (relation) { - case CPUFREQ_RELATION_L: - if (sa11x0_ppcr_to_freq(new_ppcr) > policy->max) - new_ppcr--; - break; - case CPUFREQ_RELATION_H: - if ((sa11x0_ppcr_to_freq(new_ppcr) > target_freq) && - (sa11x0_ppcr_to_freq(new_ppcr - 1) >= policy->min)) - new_ppcr--; - break; - } - - freqs.old = cur; - freqs.new = sa11x0_ppcr_to_freq(new_ppcr); - freqs.cpu = 0; - - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - if (freqs.new > cur) - sa1100_update_dram_timings(cur, freqs.new); - - PPCR = new_ppcr; - - if (freqs.new < cur) - sa1100_update_dram_timings(cur, freqs.new); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - return 0; -} - -static int __init sa1100_cpu_init(struct cpufreq_policy *policy) -{ - if (policy->cpu != 0) - return -EINVAL; - policy->cur = policy->min = policy->max = sa11x0_getspeed(0); - policy->cpuinfo.min_freq = 59000; - policy->cpuinfo.max_freq = 287000; - policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - return 0; -} - -static struct cpufreq_driver sa1100_driver __refdata = { - .flags = CPUFREQ_STICKY, - .verify = sa11x0_verify_speed, - .target = sa1100_target, - .get = sa11x0_getspeed, - .init = sa1100_cpu_init, - .name = "sa1100", -}; - -static int __init sa1100_dram_init(void) -{ - if (cpu_is_sa1100()) - return cpufreq_register_driver(&sa1100_driver); - else - return -ENODEV; -} - -arch_initcall(sa1100_dram_init); diff --git a/arch/arm/mach-sa1100/cpu-sa1110.c b/arch/arm/mach-sa1100/cpu-sa1110.c deleted file mode 100644 index 48c45b0..0000000 --- a/arch/arm/mach-sa1100/cpu-sa1110.c +++ /dev/null @@ -1,408 +0,0 @@ -/* - * linux/arch/arm/mach-sa1100/cpu-sa1110.c - * - * Copyright (C) 2001 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. - * - * Note: there are two erratas that apply to the SA1110 here: - * 7 - SDRAM auto-power-up failure (rev A0) - * 13 - Corruption of internal register reads/writes following - * SDRAM reads (rev A0, B0, B1) - * - * We ignore rev. A0 and B0 devices; I don't think they're worth supporting. - * - * The SDRAM type can be passed on the command line as cpu_sa1110.sdram=type - */ -#include <linux/cpufreq.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/moduleparam.h> -#include <linux/types.h> - -#include <asm/cputype.h> -#include <asm/mach-types.h> - -#include <mach/hardware.h> - -#include "generic.h" - -#undef DEBUG - -struct sdram_params { - const char name[20]; - u_char rows; /* bits */ - u_char cas_latency; /* cycles */ - u_char tck; /* clock cycle time (ns) */ - u_char trcd; /* activate to r/w (ns) */ - u_char trp; /* precharge to activate (ns) */ - u_char twr; /* write recovery time (ns) */ - u_short refresh; /* refresh time for array (us) */ -}; - -struct sdram_info { - u_int mdcnfg; - u_int mdrefr; - u_int mdcas[3]; -}; - -static struct sdram_params sdram_tbl[] __initdata = { - { /* Toshiba TC59SM716 CL2 */ - .name = "TC59SM716-CL2", - .rows = 12, - .tck = 10, - .trcd = 20, - .trp = 20, - .twr = 10, - .refresh = 64000, - .cas_latency = 2, - }, { /* Toshiba TC59SM716 CL3 */ - .name = "TC59SM716-CL3", - .rows = 12, - .tck = 8, - .trcd = 20, - .trp = 20, - .twr = 8, - .refresh = 64000, - .cas_latency = 3, - }, { /* Samsung K4S641632D TC75 */ - .name = "K4S641632D", - .rows = 14, - .tck = 9, - .trcd = 27, - .trp = 20, - .twr = 9, - .refresh = 64000, - .cas_latency = 3, - }, { /* Samsung K4S281632B-1H */ - .name = "K4S281632B-1H", - .rows = 12, - .tck = 10, - .trp = 20, - .twr = 10, - .refresh = 64000, - .cas_latency = 3, - }, { /* Samsung KM416S4030CT */ - .name = "KM416S4030CT", - .rows = 13, - .tck = 8, - .trcd = 24, /* 3 CLKs */ - .trp = 24, /* 3 CLKs */ - .twr = 16, /* Trdl: 2 CLKs */ - .refresh = 64000, - .cas_latency = 3, - }, { /* Winbond W982516AH75L CL3 */ - .name = "W982516AH75L", - .rows = 16, - .tck = 8, - .trcd = 20, - .trp = 20, - .twr = 8, - .refresh = 64000, - .cas_latency = 3, - }, { /* Micron MT48LC8M16A2TG-75 */ - .name = "MT48LC8M16A2TG-75", - .rows = 12, - .tck = 8, - .trcd = 20, - .trp = 20, - .twr = 8, - .refresh = 64000, - .cas_latency = 3, - }, -}; - -static struct sdram_params sdram_params; - -/* - * Given a period in ns and frequency in khz, calculate the number of - * cycles of frequency in period. Note that we round up to the next - * cycle, even if we are only slightly over. - */ -static inline u_int ns_to_cycles(u_int ns, u_int khz) -{ - return (ns * khz + 999999) / 1000000; -} - -/* - * Create the MDCAS register bit pattern. - */ -static inline void set_mdcas(u_int *mdcas, int delayed, u_int rcd) -{ - u_int shift; - - rcd = 2 * rcd - 1; - shift = delayed + 1 + rcd; - - mdcas[0] = (1 << rcd) - 1; - mdcas[0] |= 0x55555555 << shift; - mdcas[1] = mdcas[2] = 0x55555555 << (shift & 1); -} - -static void -sdram_calculate_timing(struct sdram_info *sd, u_int cpu_khz, - struct sdram_params *sdram) -{ - u_int mem_khz, sd_khz, trp, twr; - - mem_khz = cpu_khz / 2; - sd_khz = mem_khz; - - /* - * If SDCLK would invalidate the SDRAM timings, - * run SDCLK at half speed. - * - * CPU steppings prior to B2 must either run the memory at - * half speed or use delayed read latching (errata 13). - */ - if ((ns_to_cycles(sdram->tck, sd_khz) > 1) || - (CPU_REVISION < CPU_SA1110_B2 && sd_khz < 62000)) - sd_khz /= 2; - - sd->mdcnfg = MDCNFG & 0x007f007f; - - twr = ns_to_cycles(sdram->twr, mem_khz); - - /* trp should always be >1 */ - trp = ns_to_cycles(sdram->trp, mem_khz) - 1; - if (trp < 1) - trp = 1; - - sd->mdcnfg |= trp << 8; - sd->mdcnfg |= trp << 24; - sd->mdcnfg |= sdram->cas_latency << 12; - sd->mdcnfg |= sdram->cas_latency << 28; - sd->mdcnfg |= twr << 14; - sd->mdcnfg |= twr << 30; - - sd->mdrefr = MDREFR & 0xffbffff0; - sd->mdrefr |= 7; - - if (sd_khz != mem_khz) - sd->mdrefr |= MDREFR_K1DB2; - - /* initial number of '1's in MDCAS + 1 */ - set_mdcas(sd->mdcas, sd_khz >= 62000, - ns_to_cycles(sdram->trcd, mem_khz)); - -#ifdef DEBUG - printk(KERN_DEBUG "MDCNFG: %08x MDREFR: %08x MDCAS0: %08x MDCAS1: %08x MDCAS2: %08x\n", - sd->mdcnfg, sd->mdrefr, sd->mdcas[0], sd->mdcas[1], - sd->mdcas[2]); -#endif -} - -/* - * Set the SDRAM refresh rate. - */ -static inline void sdram_set_refresh(u_int dri) -{ - MDREFR = (MDREFR & 0xffff000f) | (dri << 4); - (void) MDREFR; -} - -/* - * Update the refresh period. We do this such that we always refresh - * the SDRAMs within their permissible period. The refresh period is - * always a multiple of the memory clock (fixed at cpu_clock / 2). - * - * FIXME: we don't currently take account of burst accesses here, - * but neither do Intels DM nor Angel. - */ -static void -sdram_update_refresh(u_int cpu_khz, struct sdram_params *sdram) -{ - u_int ns_row = (sdram->refresh * 1000) >> sdram->rows; - u_int dri = ns_to_cycles(ns_row, cpu_khz / 2) / 32; - -#ifdef DEBUG - mdelay(250); - printk(KERN_DEBUG "new dri value = %d\n", dri); -#endif - - sdram_set_refresh(dri); -} - -/* - * Ok, set the CPU frequency. - */ -static int sa1110_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - struct sdram_params *sdram = &sdram_params; - struct cpufreq_freqs freqs; - struct sdram_info sd; - unsigned long flags; - unsigned int ppcr, unused; - - switch (relation) { - case CPUFREQ_RELATION_L: - ppcr = sa11x0_freq_to_ppcr(target_freq); - if (sa11x0_ppcr_to_freq(ppcr) > policy->max) - ppcr--; - break; - case CPUFREQ_RELATION_H: - ppcr = sa11x0_freq_to_ppcr(target_freq); - if (ppcr && (sa11x0_ppcr_to_freq(ppcr) > target_freq) && - (sa11x0_ppcr_to_freq(ppcr-1) >= policy->min)) - ppcr--; - break; - default: - return -EINVAL; - } - - freqs.old = sa11x0_getspeed(0); - freqs.new = sa11x0_ppcr_to_freq(ppcr); - freqs.cpu = 0; - - sdram_calculate_timing(&sd, freqs.new, sdram); - -#if 0 - /* - * These values are wrong according to the SA1110 documentation - * and errata, but they seem to work. Need to get a storage - * scope on to the SDRAM signals to work out why. - */ - if (policy->max < 147500) { - sd.mdrefr |= MDREFR_K1DB2; - sd.mdcas[0] = 0xaaaaaa7f; - } else { - sd.mdrefr &= ~MDREFR_K1DB2; - sd.mdcas[0] = 0xaaaaaa9f; - } - sd.mdcas[1] = 0xaaaaaaaa; - sd.mdcas[2] = 0xaaaaaaaa; -#endif - - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - /* - * The clock could be going away for some time. Set the SDRAMs - * to refresh rapidly (every 64 memory clock cycles). To get - * through the whole array, we need to wait 262144 mclk cycles. - * We wait 20ms to be safe. - */ - sdram_set_refresh(2); - if (!irqs_disabled()) - msleep(20); - else - mdelay(20); - - /* - * Reprogram the DRAM timings with interrupts disabled, and - * ensure that we are doing this within a complete cache line. - * This means that we won't access SDRAM for the duration of - * the programming. - */ - local_irq_save(flags); - asm("mcr p15, 0, %0, c7, c10, 4" : : "r" (0)); - udelay(10); - __asm__ __volatile__("\n\ - b 2f \n\ - .align 5 \n\ -1: str %3, [%1, #0] @ MDCNFG \n\ - str %4, [%1, #28] @ MDREFR \n\ - str %5, [%1, #4] @ MDCAS0 \n\ - str %6, [%1, #8] @ MDCAS1 \n\ - str %7, [%1, #12] @ MDCAS2 \n\ - str %8, [%2, #0] @ PPCR \n\ - ldr %0, [%1, #0] \n\ - b 3f \n\ -2: b 1b \n\ -3: nop \n\ - nop" - : "=&r" (unused) - : "r" (&MDCNFG), "r" (&PPCR), "0" (sd.mdcnfg), - "r" (sd.mdrefr), "r" (sd.mdcas[0]), - "r" (sd.mdcas[1]), "r" (sd.mdcas[2]), "r" (ppcr)); - local_irq_restore(flags); - - /* - * Now, return the SDRAM refresh back to normal. - */ - sdram_update_refresh(freqs.new, sdram); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - return 0; -} - -static int __init sa1110_cpu_init(struct cpufreq_policy *policy) -{ - if (policy->cpu != 0) - return -EINVAL; - policy->cur = policy->min = policy->max = sa11x0_getspeed(0); - policy->cpuinfo.min_freq = 59000; - policy->cpuinfo.max_freq = 287000; - policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - return 0; -} - -/* sa1110_driver needs __refdata because it must remain after init registers - * it with cpufreq_register_driver() */ -static struct cpufreq_driver sa1110_driver __refdata = { - .flags = CPUFREQ_STICKY, - .verify = sa11x0_verify_speed, - .target = sa1110_target, - .get = sa11x0_getspeed, - .init = sa1110_cpu_init, - .name = "sa1110", -}; - -static struct sdram_params *sa1110_find_sdram(const char *name) -{ - struct sdram_params *sdram; - - for (sdram = sdram_tbl; sdram < sdram_tbl + ARRAY_SIZE(sdram_tbl); - sdram++) - if (strcmp(name, sdram->name) == 0) - return sdram; - - return NULL; -} - -static char sdram_name[16]; - -static int __init sa1110_clk_init(void) -{ - struct sdram_params *sdram; - const char *name = sdram_name; - - if (!cpu_is_sa1110()) - return -ENODEV; - - if (!name[0]) { - if (machine_is_assabet()) - name = "TC59SM716-CL3"; - if (machine_is_pt_system3()) - name = "K4S641632D"; - if (machine_is_h3100()) - name = "KM416S4030CT"; - if (machine_is_jornada720()) - name = "K4S281632B-1H"; - if (machine_is_nanoengine()) - name = "MT48LC8M16A2TG-75"; - } - - sdram = sa1110_find_sdram(name); - if (sdram) { - printk(KERN_DEBUG "SDRAM: tck: %d trcd: %d trp: %d" - " twr: %d refresh: %d cas_latency: %d\n", - sdram->tck, sdram->trcd, sdram->trp, - sdram->twr, sdram->refresh, sdram->cas_latency); - - memcpy(&sdram_params, sdram, sizeof(sdram_params)); - - return cpufreq_register_driver(&sa1110_driver); - } - - return 0; -} - -module_param_string(sdram, sdram_name, sizeof(sdram_name), 0); -arch_initcall(sa1110_clk_init); diff --git a/arch/arm/mach-sa1100/include/mach/generic.h b/arch/arm/mach-sa1100/include/mach/generic.h new file mode 100644 index 0000000..665542e --- /dev/null +++ b/arch/arm/mach-sa1100/include/mach/generic.h @@ -0,0 +1 @@ +#include "../../generic.h" diff --git a/arch/arm/mach-shark/core.c b/arch/arm/mach-shark/core.c index b63dec8..1535557 100644 --- a/arch/arm/mach-shark/core.c +++ b/arch/arm/mach-shark/core.c @@ -10,6 +10,7 @@ #include <linux/sched.h> #include <linux/serial_8250.h> #include <linux/io.h> +#include <linux/cpu.h> #include <asm/setup.h> #include <asm/mach-types.h> @@ -130,7 +131,7 @@ static void __init shark_timer_init(void) static void shark_init_early(void) { - disable_hlt(); + cpu_idle_poll_ctrl(true); } MACHINE_START(SHARK, "Shark") diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c index f2ec077..881e5c0 100644 --- a/arch/arm/mach-shmobile/board-armadillo800eva.c +++ b/arch/arm/mach-shmobile/board-armadillo800eva.c @@ -24,6 +24,7 @@ #include <linux/err.h> #include <linux/kernel.h> #include <linux/input.h> +#include <linux/platform_data/st1232_pdata.h> #include <linux/irq.h> #include <linux/platform_device.h> #include <linux/gpio.h> @@ -169,7 +170,7 @@ static int usbhsf_get_id(struct platform_device *pdev) return USBHS_GADGET; } -static void usbhsf_power_ctrl(struct platform_device *pdev, +static int usbhsf_power_ctrl(struct platform_device *pdev, void __iomem *base, int enable) { struct usbhsf_private *priv = usbhsf_get_priv(pdev); @@ -223,6 +224,8 @@ static void usbhsf_power_ctrl(struct platform_device *pdev, clk_disable(priv->pci); /* usb work around */ clk_disable(priv->usb24); /* usb work around */ } + + return 0; } static int usbhsf_get_vbus(struct platform_device *pdev) @@ -239,7 +242,7 @@ static irqreturn_t usbhsf_interrupt(int irq, void *data) return IRQ_HANDLED; } -static void usbhsf_hardware_exit(struct platform_device *pdev) +static int usbhsf_hardware_exit(struct platform_device *pdev) { struct usbhsf_private *priv = usbhsf_get_priv(pdev); @@ -264,6 +267,8 @@ static void usbhsf_hardware_exit(struct platform_device *pdev) priv->usbh_base = NULL; free_irq(IRQ7, pdev); + + return 0; } static int usbhsf_hardware_init(struct platform_device *pdev) @@ -878,10 +883,15 @@ static struct platform_device i2c_gpio_device = { }; /* I2C */ +static struct st1232_pdata st1232_i2c0_pdata = { + .reset_gpio = 166, +}; + static struct i2c_board_info i2c0_devices[] = { { I2C_BOARD_INFO("st1232-ts", 0x55), .irq = evt2irq(0x0340), + .platform_data = &st1232_i2c0_pdata, }, { I2C_BOARD_INFO("wm8978", 0x1a), @@ -1005,7 +1015,6 @@ static void __init eva_init(void) /* Touchscreen */ gpio_request(GPIO_FN_IRQ10, NULL); /* TP_INT */ - gpio_request_one(GPIO_PORT166, GPIOF_OUT_INIT_HIGH, NULL); /* TP_RST_B */ /* GETHER */ gpio_request(GPIO_FN_ET_CRS, NULL); diff --git a/arch/arm/mach-shmobile/board-kzm9g.c b/arch/arm/mach-shmobile/board-kzm9g.c index 7f3a6b7..a385f57 100644 --- a/arch/arm/mach-shmobile/board-kzm9g.c +++ b/arch/arm/mach-shmobile/board-kzm9g.c @@ -155,12 +155,14 @@ static int usbhs_get_vbus(struct platform_device *pdev) return !((1 << 7) & __raw_readw(priv->cr2)); } -static void usbhs_phy_reset(struct platform_device *pdev) +static int usbhs_phy_reset(struct platform_device *pdev) { struct usbhs_private *priv = usbhs_get_priv(pdev); /* init phy */ __raw_writew(0x8a0a, priv->cr2); + + return 0; } static int usbhs_get_id(struct platform_device *pdev) @@ -202,7 +204,7 @@ static int usbhs_hardware_init(struct platform_device *pdev) return 0; } -static void usbhs_hardware_exit(struct platform_device *pdev) +static int usbhs_hardware_exit(struct platform_device *pdev) { struct usbhs_private *priv = usbhs_get_priv(pdev); @@ -210,6 +212,8 @@ static void usbhs_hardware_exit(struct platform_device *pdev) __raw_writew(USB_PHY_MODE | USB_PHY_INT_CLR, priv->phy); free_irq(IRQ15, pdev); + + return 0; } static u32 usbhs_pipe_cfg[] = { diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c index db968a5..979237c 100644 --- a/arch/arm/mach-shmobile/board-mackerel.c +++ b/arch/arm/mach-shmobile/board-mackerel.c @@ -596,12 +596,14 @@ static int usbhs_get_vbus(struct platform_device *pdev) return usbhs_is_connected(usbhs_get_priv(pdev)); } -static void usbhs_phy_reset(struct platform_device *pdev) +static int usbhs_phy_reset(struct platform_device *pdev) { struct usbhs_private *priv = usbhs_get_priv(pdev); /* init phy */ __raw_writew(0x8a0a, priv->usbcrcaddr); + + return 0; } static int usbhs0_get_id(struct platform_device *pdev) @@ -628,11 +630,13 @@ static int usbhs0_hardware_init(struct platform_device *pdev) return 0; } -static void usbhs0_hardware_exit(struct platform_device *pdev) +static int usbhs0_hardware_exit(struct platform_device *pdev) { struct usbhs_private *priv = usbhs_get_priv(pdev); cancel_delayed_work_sync(&priv->work); + + return 0; } static struct usbhs_private usbhs0_private = { @@ -735,7 +739,7 @@ static int usbhs1_hardware_init(struct platform_device *pdev) return 0; } -static void usbhs1_hardware_exit(struct platform_device *pdev) +static int usbhs1_hardware_exit(struct platform_device *pdev) { struct usbhs_private *priv = usbhs_get_priv(pdev); @@ -743,6 +747,8 @@ static void usbhs1_hardware_exit(struct platform_device *pdev) __raw_writew(USB_PHY_MODE | USB_PHY_INT_CLR, priv->usbphyaddr); free_irq(IRQ8, pdev); + + return 0; } static int usbhs1_get_id(struct platform_device *pdev) diff --git a/arch/arm/mach-shmobile/cpuidle.c b/arch/arm/mach-shmobile/cpuidle.c index 9e05026..0afeb5c 100644 --- a/arch/arm/mach-shmobile/cpuidle.c +++ b/arch/arm/mach-shmobile/cpuidle.c @@ -16,39 +16,22 @@ #include <asm/cpuidle.h> #include <asm/io.h> -int shmobile_enter_wfi(struct cpuidle_device *dev, struct cpuidle_driver *drv, - int index) -{ - cpu_do_idle(); - return 0; -} - -static struct cpuidle_device shmobile_cpuidle_dev; static struct cpuidle_driver shmobile_cpuidle_default_driver = { .name = "shmobile_cpuidle", .owner = THIS_MODULE, - .en_core_tk_irqen = 1, .states[0] = ARM_CPUIDLE_WFI_STATE, - .states[0].enter = shmobile_enter_wfi, .safe_state_index = 0, /* C1 */ .state_count = 1, }; static struct cpuidle_driver *cpuidle_drv = &shmobile_cpuidle_default_driver; -void shmobile_cpuidle_set_driver(struct cpuidle_driver *drv) +void __init shmobile_cpuidle_set_driver(struct cpuidle_driver *drv) { cpuidle_drv = drv; } -int shmobile_cpuidle_init(void) +int __init shmobile_cpuidle_init(void) { - struct cpuidle_device *dev = &shmobile_cpuidle_dev; - - cpuidle_register_driver(cpuidle_drv); - - dev->state_count = cpuidle_drv->state_count; - cpuidle_register_device(dev); - - return 0; + return cpuidle_register(cpuidle_drv, NULL); } diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h index e48606d..362f9b2 100644 --- a/arch/arm/mach-shmobile/include/mach/common.h +++ b/arch/arm/mach-shmobile/include/mach/common.h @@ -13,9 +13,6 @@ extern int shmobile_clk_init(void); extern void shmobile_handle_irq_intc(struct pt_regs *); extern struct platform_suspend_ops shmobile_suspend_ops; struct cpuidle_driver; -struct cpuidle_device; -extern int shmobile_enter_wfi(struct cpuidle_device *dev, - struct cpuidle_driver *drv, int index); extern void shmobile_cpuidle_set_driver(struct cpuidle_driver *drv); extern void sh7372_init_irq(void); diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c index a0826a4..dec9293 100644 --- a/arch/arm/mach-shmobile/pm-sh7372.c +++ b/arch/arm/mach-shmobile/pm-sh7372.c @@ -410,11 +410,9 @@ static int sh7372_enter_a4s(struct cpuidle_device *dev, static struct cpuidle_driver sh7372_cpuidle_driver = { .name = "sh7372_cpuidle", .owner = THIS_MODULE, - .en_core_tk_irqen = 1, .state_count = 5, .safe_state_index = 0, /* C1 */ .states[0] = ARM_CPUIDLE_WFI_STATE, - .states[0].enter = shmobile_enter_wfi, .states[1] = { .name = "C2", .desc = "Core Standby Mode", @@ -450,12 +448,12 @@ static struct cpuidle_driver sh7372_cpuidle_driver = { }, }; -static void sh7372_cpuidle_init(void) +static void __init sh7372_cpuidle_init(void) { shmobile_cpuidle_set_driver(&sh7372_cpuidle_driver); } #else -static void sh7372_cpuidle_init(void) {} +static void __init sh7372_cpuidle_init(void) {} #endif #ifdef CONFIG_SUSPEND diff --git a/arch/arm/mach-shmobile/suspend.c b/arch/arm/mach-shmobile/suspend.c index 47d83f7..5d92b5d 100644 --- a/arch/arm/mach-shmobile/suspend.c +++ b/arch/arm/mach-shmobile/suspend.c @@ -12,6 +12,8 @@ #include <linux/suspend.h> #include <linux/module.h> #include <linux/err.h> +#include <linux/cpu.h> + #include <asm/io.h> #include <asm/system_misc.h> @@ -23,13 +25,13 @@ static int shmobile_suspend_default_enter(suspend_state_t suspend_state) static int shmobile_suspend_begin(suspend_state_t state) { - disable_hlt(); + cpu_idle_poll_ctrl(true); return 0; } static void shmobile_suspend_end(void) { - enable_hlt(); + cpu_idle_poll_ctrl(false); } struct platform_suspend_ops shmobile_suspend_ops = { diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig index d1c4893..dbc653e 100644 --- a/arch/arm/mach-tegra/Kconfig +++ b/arch/arm/mach-tegra/Kconfig @@ -18,8 +18,8 @@ config ARCH_TEGRA_2x_SOC select PL310_ERRATA_727915 if CACHE_L2X0 select PL310_ERRATA_769419 if CACHE_L2X0 select USB_ARCH_HAS_EHCI if USB_SUPPORT - select USB_ULPI if USB - select USB_ULPI_VIEWPORT if USB_SUPPORT + select USB_ULPI if USB_PHY + select USB_ULPI_VIEWPORT if USB_PHY help Support for NVIDIA Tegra AP20 and T20 processors, based on the ARM CortexA9MP CPU and the ARM PL310 L2 cache controller @@ -37,8 +37,8 @@ config ARCH_TEGRA_3x_SOC select PINCTRL_TEGRA30 select PL310_ERRATA_769419 if CACHE_L2X0 select USB_ARCH_HAS_EHCI if USB_SUPPORT - select USB_ULPI if USB - select USB_ULPI_VIEWPORT if USB_SUPPORT + select USB_ULPI if USB_PHY + select USB_ULPI_VIEWPORT if USB_PHY help Support for NVIDIA Tegra T30 processor family, based on the ARM CortexA9MP CPU and the ARM PL310 L2 cache controller diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index f6b46ae..09b578f 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -24,7 +24,6 @@ obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += cpuidle-tegra30.o endif obj-$(CONFIG_SMP) += platsmp.o headsmp.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o -obj-$(CONFIG_CPU_FREQ) += cpu-tegra.o obj-$(CONFIG_TEGRA_PCI) += pcie.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += board-dt-tegra20.o diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c deleted file mode 100644 index e3d6e15..0000000 --- a/arch/arm/mach-tegra/cpu-tegra.c +++ /dev/null @@ -1,293 +0,0 @@ -/* - * arch/arm/mach-tegra/cpu-tegra.c - * - * Copyright (C) 2010 Google, Inc. - * - * Author: - * Colin Cross <ccross@google.com> - * Based on arch/arm/plat-omap/cpu-omap.c, (C) 2005 Nokia Corporation - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * 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. - * - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/sched.h> -#include <linux/cpufreq.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/err.h> -#include <linux/clk.h> -#include <linux/io.h> -#include <linux/suspend.h> - -/* Frequency table index must be sequential starting at 0 */ -static struct cpufreq_frequency_table freq_table[] = { - { 0, 216000 }, - { 1, 312000 }, - { 2, 456000 }, - { 3, 608000 }, - { 4, 760000 }, - { 5, 816000 }, - { 6, 912000 }, - { 7, 1000000 }, - { 8, CPUFREQ_TABLE_END }, -}; - -#define NUM_CPUS 2 - -static struct clk *cpu_clk; -static struct clk *pll_x_clk; -static struct clk *pll_p_clk; -static struct clk *emc_clk; - -static unsigned long target_cpu_speed[NUM_CPUS]; -static DEFINE_MUTEX(tegra_cpu_lock); -static bool is_suspended; - -static int tegra_verify_speed(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, freq_table); -} - -static unsigned int tegra_getspeed(unsigned int cpu) -{ - unsigned long rate; - - if (cpu >= NUM_CPUS) - return 0; - - rate = clk_get_rate(cpu_clk) / 1000; - return rate; -} - -static int tegra_cpu_clk_set_rate(unsigned long rate) -{ - int ret; - - /* - * Take an extra reference to the main pll so it doesn't turn - * off when we move the cpu off of it - */ - clk_prepare_enable(pll_x_clk); - - ret = clk_set_parent(cpu_clk, pll_p_clk); - if (ret) { - pr_err("Failed to switch cpu to clock pll_p\n"); - goto out; - } - - if (rate == clk_get_rate(pll_p_clk)) - goto out; - - ret = clk_set_rate(pll_x_clk, rate); - if (ret) { - pr_err("Failed to change pll_x to %lu\n", rate); - goto out; - } - - ret = clk_set_parent(cpu_clk, pll_x_clk); - if (ret) { - pr_err("Failed to switch cpu to clock pll_x\n"); - goto out; - } - -out: - clk_disable_unprepare(pll_x_clk); - return ret; -} - -static int tegra_update_cpu_speed(unsigned long rate) -{ - int ret = 0; - struct cpufreq_freqs freqs; - - freqs.old = tegra_getspeed(0); - freqs.new = rate; - - if (freqs.old == freqs.new) - return ret; - - /* - * Vote on memory bus frequency based on cpu frequency - * This sets the minimum frequency, display or avp may request higher - */ - if (rate >= 816000) - clk_set_rate(emc_clk, 600000000); /* cpu 816 MHz, emc max */ - else if (rate >= 456000) - clk_set_rate(emc_clk, 300000000); /* cpu 456 MHz, emc 150Mhz */ - else - clk_set_rate(emc_clk, 100000000); /* emc 50Mhz */ - - for_each_online_cpu(freqs.cpu) - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - -#ifdef CONFIG_CPU_FREQ_DEBUG - printk(KERN_DEBUG "cpufreq-tegra: transition: %u --> %u\n", - freqs.old, freqs.new); -#endif - - ret = tegra_cpu_clk_set_rate(freqs.new * 1000); - if (ret) { - pr_err("cpu-tegra: Failed to set cpu frequency to %d kHz\n", - freqs.new); - return ret; - } - - for_each_online_cpu(freqs.cpu) - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - return 0; -} - -static unsigned long tegra_cpu_highest_speed(void) -{ - unsigned long rate = 0; - int i; - - for_each_online_cpu(i) - rate = max(rate, target_cpu_speed[i]); - return rate; -} - -static int tegra_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int idx; - unsigned int freq; - int ret = 0; - - mutex_lock(&tegra_cpu_lock); - - if (is_suspended) { - ret = -EBUSY; - goto out; - } - - cpufreq_frequency_table_target(policy, freq_table, target_freq, - relation, &idx); - - freq = freq_table[idx].frequency; - - target_cpu_speed[policy->cpu] = freq; - - ret = tegra_update_cpu_speed(tegra_cpu_highest_speed()); - -out: - mutex_unlock(&tegra_cpu_lock); - return ret; -} - -static int tegra_pm_notify(struct notifier_block *nb, unsigned long event, - void *dummy) -{ - mutex_lock(&tegra_cpu_lock); - if (event == PM_SUSPEND_PREPARE) { - is_suspended = true; - pr_info("Tegra cpufreq suspend: setting frequency to %d kHz\n", - freq_table[0].frequency); - tegra_update_cpu_speed(freq_table[0].frequency); - } else if (event == PM_POST_SUSPEND) { - is_suspended = false; - } - mutex_unlock(&tegra_cpu_lock); - - return NOTIFY_OK; -} - -static struct notifier_block tegra_cpu_pm_notifier = { - .notifier_call = tegra_pm_notify, -}; - -static int tegra_cpu_init(struct cpufreq_policy *policy) -{ - if (policy->cpu >= NUM_CPUS) - return -EINVAL; - - clk_prepare_enable(emc_clk); - clk_prepare_enable(cpu_clk); - - cpufreq_frequency_table_cpuinfo(policy, freq_table); - cpufreq_frequency_table_get_attr(freq_table, policy->cpu); - policy->cur = tegra_getspeed(policy->cpu); - target_cpu_speed[policy->cpu] = policy->cur; - - /* FIXME: what's the actual transition time? */ - policy->cpuinfo.transition_latency = 300 * 1000; - - cpumask_copy(policy->cpus, cpu_possible_mask); - - if (policy->cpu == 0) - register_pm_notifier(&tegra_cpu_pm_notifier); - - return 0; -} - -static int tegra_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_cpuinfo(policy, freq_table); - clk_disable_unprepare(emc_clk); - return 0; -} - -static struct freq_attr *tegra_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - -static struct cpufreq_driver tegra_cpufreq_driver = { - .verify = tegra_verify_speed, - .target = tegra_target, - .get = tegra_getspeed, - .init = tegra_cpu_init, - .exit = tegra_cpu_exit, - .name = "tegra", - .attr = tegra_cpufreq_attr, -}; - -static int __init tegra_cpufreq_init(void) -{ - cpu_clk = clk_get_sys(NULL, "cpu"); - if (IS_ERR(cpu_clk)) - return PTR_ERR(cpu_clk); - - pll_x_clk = clk_get_sys(NULL, "pll_x"); - if (IS_ERR(pll_x_clk)) - return PTR_ERR(pll_x_clk); - - pll_p_clk = clk_get_sys(NULL, "pll_p_cclk"); - if (IS_ERR(pll_p_clk)) - return PTR_ERR(pll_p_clk); - - emc_clk = clk_get_sys("cpu", "emc"); - if (IS_ERR(emc_clk)) { - clk_put(cpu_clk); - return PTR_ERR(emc_clk); - } - - return cpufreq_register_driver(&tegra_cpufreq_driver); -} - -static void __exit tegra_cpufreq_exit(void) -{ - cpufreq_unregister_driver(&tegra_cpufreq_driver); - clk_put(emc_clk); - clk_put(cpu_clk); -} - - -MODULE_AUTHOR("Colin Cross <ccross@android.com>"); -MODULE_DESCRIPTION("cpufreq driver for Nvidia Tegra2"); -MODULE_LICENSE("GPL"); -module_init(tegra_cpufreq_init); -module_exit(tegra_cpufreq_exit); diff --git a/arch/arm/mach-tegra/cpuidle-tegra114.c b/arch/arm/mach-tegra/cpuidle-tegra114.c index 0f4e8c4..1d1c602 100644 --- a/arch/arm/mach-tegra/cpuidle-tegra114.c +++ b/arch/arm/mach-tegra/cpuidle-tegra114.c @@ -23,39 +23,13 @@ static struct cpuidle_driver tegra_idle_driver = { .name = "tegra_idle", .owner = THIS_MODULE, - .en_core_tk_irqen = 1, .state_count = 1, .states = { [0] = ARM_CPUIDLE_WFI_STATE_PWR(600), }, }; -static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device); - int __init tegra114_cpuidle_init(void) { - int ret; - unsigned int cpu; - struct cpuidle_device *dev; - struct cpuidle_driver *drv = &tegra_idle_driver; - - ret = cpuidle_register_driver(&tegra_idle_driver); - if (ret) { - pr_err("CPUidle driver registration failed\n"); - return ret; - } - - for_each_possible_cpu(cpu) { - dev = &per_cpu(tegra_idle_device, cpu); - dev->cpu = cpu; - - dev->state_count = drv->state_count; - ret = cpuidle_register_device(dev); - if (ret) { - pr_err("CPU%u: CPUidle device registration failed\n", - cpu); - return ret; - } - } - return 0; + return cpuidle_register(&tegra_idle_driver, NULL); } diff --git a/arch/arm/mach-tegra/cpuidle-tegra20.c b/arch/arm/mach-tegra/cpuidle-tegra20.c index 825ced4..590ec25 100644 --- a/arch/arm/mach-tegra/cpuidle-tegra20.c +++ b/arch/arm/mach-tegra/cpuidle-tegra20.c @@ -43,32 +43,33 @@ static atomic_t abort_barrier; static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index); +#define TEGRA20_MAX_STATES 2 +#else +#define TEGRA20_MAX_STATES 1 #endif -static struct cpuidle_state tegra_idle_states[] = { - [0] = ARM_CPUIDLE_WFI_STATE_PWR(600), -#ifdef CONFIG_PM_SLEEP - [1] = { - .enter = tegra20_idle_lp2_coupled, - .exit_latency = 5000, - .target_residency = 10000, - .power_usage = 0, - .flags = CPUIDLE_FLAG_TIME_VALID | - CPUIDLE_FLAG_COUPLED, - .name = "powered-down", - .desc = "CPU power gated", - }, -#endif -}; - static struct cpuidle_driver tegra_idle_driver = { .name = "tegra_idle", .owner = THIS_MODULE, - .en_core_tk_irqen = 1, + .states = { + ARM_CPUIDLE_WFI_STATE_PWR(600), +#ifdef CONFIG_PM_SLEEP + { + .enter = tegra20_idle_lp2_coupled, + .exit_latency = 5000, + .target_residency = 10000, + .power_usage = 0, + .flags = CPUIDLE_FLAG_TIME_VALID | + CPUIDLE_FLAG_COUPLED, + .name = "powered-down", + .desc = "CPU power gated", + }, +#endif + }, + .state_count = TEGRA20_MAX_STATES, + .safe_state_index = 0, }; -static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device); - #ifdef CONFIG_PM_SLEEP #ifdef CONFIG_SMP static void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE); @@ -217,39 +218,8 @@ static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev, int __init tegra20_cpuidle_init(void) { - int ret; - unsigned int cpu; - struct cpuidle_device *dev; - struct cpuidle_driver *drv = &tegra_idle_driver; - #ifdef CONFIG_PM_SLEEP tegra_tear_down_cpu = tegra20_tear_down_cpu; #endif - - drv->state_count = ARRAY_SIZE(tegra_idle_states); - memcpy(drv->states, tegra_idle_states, - drv->state_count * sizeof(drv->states[0])); - - ret = cpuidle_register_driver(&tegra_idle_driver); - if (ret) { - pr_err("CPUidle driver registration failed\n"); - return ret; - } - - for_each_possible_cpu(cpu) { - dev = &per_cpu(tegra_idle_device, cpu); - dev->cpu = cpu; -#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED - dev->coupled_cpus = *cpu_possible_mask; -#endif - - dev->state_count = drv->state_count; - ret = cpuidle_register_device(dev); - if (ret) { - pr_err("CPU%u: CPUidle device registration failed\n", - cpu); - return ret; - } - } - return 0; + return cpuidle_register(&tegra_idle_driver, cpu_possible_mask); } diff --git a/arch/arm/mach-tegra/cpuidle-tegra30.c b/arch/arm/mach-tegra/cpuidle-tegra30.c index 8b50cf4..36dc2be 100644 --- a/arch/arm/mach-tegra/cpuidle-tegra30.c +++ b/arch/arm/mach-tegra/cpuidle-tegra30.c @@ -43,7 +43,6 @@ static int tegra30_idle_lp2(struct cpuidle_device *dev, static struct cpuidle_driver tegra_idle_driver = { .name = "tegra_idle", .owner = THIS_MODULE, - .en_core_tk_irqen = 1, #ifdef CONFIG_PM_SLEEP .state_count = 2, #else @@ -65,8 +64,6 @@ static struct cpuidle_driver tegra_idle_driver = { }, }; -static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device); - #ifdef CONFIG_PM_SLEEP static bool tegra30_cpu_cluster_power_down(struct cpuidle_device *dev, struct cpuidle_driver *drv, @@ -157,32 +154,8 @@ static int tegra30_idle_lp2(struct cpuidle_device *dev, int __init tegra30_cpuidle_init(void) { - int ret; - unsigned int cpu; - struct cpuidle_device *dev; - struct cpuidle_driver *drv = &tegra_idle_driver; - #ifdef CONFIG_PM_SLEEP tegra_tear_down_cpu = tegra30_tear_down_cpu; #endif - - ret = cpuidle_register_driver(&tegra_idle_driver); - if (ret) { - pr_err("CPUidle driver registration failed\n"); - return ret; - } - - for_each_possible_cpu(cpu) { - dev = &per_cpu(tegra_idle_device, cpu); - dev->cpu = cpu; - - dev->state_count = drv->state_count; - ret = cpuidle_register_device(dev); - if (ret) { - pr_err("CPU%u: CPUidle device registration failed\n", - cpu); - return ret; - } - } - return 0; + return cpuidle_register(&tegra_idle_driver, NULL); } diff --git a/arch/arm/mach-ux500/board-mop500-regulators.c b/arch/arm/mach-ux500/board-mop500-regulators.c index 2a17bc5..ff3c9f0 100644 --- a/arch/arm/mach-ux500/board-mop500-regulators.c +++ b/arch/arm/mach-ux500/board-mop500-regulators.c @@ -5,6 +5,7 @@ * * Authors: Sundar Iyer <sundar.iyer@stericsson.com> * Bengt Jonsson <bengt.g.jonsson@stericsson.com> + * Daniel Willerud <daniel.willerud@stericsson.com> * * MOP500 board specific initialization for regulators */ @@ -12,6 +13,7 @@ #include <linux/regulator/machine.h> #include <linux/regulator/ab8500.h> #include "board-mop500-regulators.h" +#include "id.h" static struct regulator_consumer_supply gpio_en_3v3_consumers[] = { REGULATOR_SUPPLY("vdd33a", "smsc911x.0"), @@ -53,21 +55,37 @@ struct regulator_init_data tps61052_regulator = { }; static struct regulator_consumer_supply ab8500_vaux1_consumers[] = { - /* External displays, connector on board 2v5 power supply */ - REGULATOR_SUPPLY("vaux12v5", "mcde.0"), + /* Main display, u8500 R3 uib */ + REGULATOR_SUPPLY("vddi", "mcde_disp_sony_acx424akp.0"), + /* Main display, u8500 uib and ST uib */ + REGULATOR_SUPPLY("vdd1", "samsung_s6d16d0.0"), + /* Secondary display, ST uib */ + REGULATOR_SUPPLY("vdd1", "samsung_s6d16d0.1"), /* SFH7741 proximity sensor */ REGULATOR_SUPPLY("vcc", "gpio-keys.0"), /* BH1780GLS ambient light sensor */ REGULATOR_SUPPLY("vcc", "2-0029"), /* lsm303dlh accelerometer */ - REGULATOR_SUPPLY("vdd", "3-0018"), + REGULATOR_SUPPLY("vdd", "2-0018"), + /* lsm303dlhc accelerometer */ + REGULATOR_SUPPLY("vdd", "2-0019"), /* lsm303dlh magnetometer */ - REGULATOR_SUPPLY("vdd", "3-001e"), + REGULATOR_SUPPLY("vdd", "2-001e"), /* Rohm BU21013 Touchscreen devices */ REGULATOR_SUPPLY("avdd", "3-005c"), REGULATOR_SUPPLY("avdd", "3-005d"), /* Synaptics RMI4 Touchscreen device */ REGULATOR_SUPPLY("vdd", "3-004b"), + /* L3G4200D Gyroscope device */ + REGULATOR_SUPPLY("vdd", "2-0068"), + /* Ambient light sensor device */ + REGULATOR_SUPPLY("vdd", "3-0029"), + /* Pressure sensor device */ + REGULATOR_SUPPLY("vdd", "2-005c"), + /* Cypress TrueTouch Touchscreen device */ + REGULATOR_SUPPLY("vcpin", "spi8.0"), + /* Camera device */ + REGULATOR_SUPPLY("vaux12v5", "mmio_camera"), }; static struct regulator_consumer_supply ab8500_vaux2_consumers[] = { @@ -75,18 +93,50 @@ static struct regulator_consumer_supply ab8500_vaux2_consumers[] = { REGULATOR_SUPPLY("vmmc", "sdi4"), /* AB8500 audio codec */ REGULATOR_SUPPLY("vcc-N2158", "ab8500-codec.0"), + /* AB8500 accessory detect 1 */ + REGULATOR_SUPPLY("vcc-N2158", "ab8500-acc-det.0"), + /* AB8500 Tv-out device */ + REGULATOR_SUPPLY("vcc-N2158", "mcde_tv_ab8500.4"), + /* AV8100 HDMI device */ + REGULATOR_SUPPLY("vcc-N2158", "av8100_hdmi.3"), }; static struct regulator_consumer_supply ab8500_vaux3_consumers[] = { + REGULATOR_SUPPLY("v-SD-STM", "stm"), /* External MMC slot power */ REGULATOR_SUPPLY("vmmc", "sdi0"), }; +static struct regulator_consumer_supply ab8505_vaux4_consumers[] = { +}; + +static struct regulator_consumer_supply ab8505_vaux5_consumers[] = { +}; + +static struct regulator_consumer_supply ab8505_vaux6_consumers[] = { +}; + +static struct regulator_consumer_supply ab8505_vaux8_consumers[] = { + /* AB8500 audio codec device */ + REGULATOR_SUPPLY("v-aux8", NULL), +}; + +static struct regulator_consumer_supply ab8505_vadc_consumers[] = { + /* Internal general-purpose ADC */ + REGULATOR_SUPPLY("vddadc", "ab8500-gpadc.0"), + /* ADC for charger */ + REGULATOR_SUPPLY("vddadc", "ab8500-charger.0"), +}; + static struct regulator_consumer_supply ab8500_vtvout_consumers[] = { /* TV-out DENC supply */ REGULATOR_SUPPLY("vtvout", "ab8500-denc.0"), /* Internal general-purpose ADC */ REGULATOR_SUPPLY("vddadc", "ab8500-gpadc.0"), + /* ADC for charger */ + REGULATOR_SUPPLY("vddadc", "ab8500-charger.0"), + /* AB8500 Tv-out device */ + REGULATOR_SUPPLY("vtvout", "mcde_tv_ab8500.4"), }; static struct regulator_consumer_supply ab8500_vaud_consumers[] = { @@ -114,77 +164,90 @@ static struct regulator_consumer_supply ab8500_vintcore_consumers[] = { REGULATOR_SUPPLY("v-intcore", NULL), /* USB Transceiver */ REGULATOR_SUPPLY("vddulpivio18", "ab8500-usb.0"), + /* Handled by abx500 clk driver */ + REGULATOR_SUPPLY("v-intcore", "abx500-clk.0"), +}; + +static struct regulator_consumer_supply ab8505_usb_consumers[] = { + /* HS USB OTG physical interface */ + REGULATOR_SUPPLY("v-ape", NULL), }; static struct regulator_consumer_supply ab8500_vana_consumers[] = { - /* External displays, connector on board, 1v8 power supply */ - REGULATOR_SUPPLY("vsmps2", "mcde.0"), + /* DB8500 DSI */ + REGULATOR_SUPPLY("vdddsi1v2", "mcde"), + REGULATOR_SUPPLY("vdddsi1v2", "b2r2_core"), + REGULATOR_SUPPLY("vdddsi1v2", "b2r2_1_core"), + REGULATOR_SUPPLY("vdddsi1v2", "dsilink.0"), + REGULATOR_SUPPLY("vdddsi1v2", "dsilink.1"), + REGULATOR_SUPPLY("vdddsi1v2", "dsilink.2"), + /* DB8500 CSI */ + REGULATOR_SUPPLY("vddcsi1v2", "mmio_camera"), }; /* ab8500 regulator register initialization */ -struct ab8500_regulator_reg_init -ab8500_regulator_reg_init[AB8500_NUM_REGULATOR_REGISTERS] = { +static struct ab8500_regulator_reg_init ab8500_reg_init[] = { /* * VanaRequestCtrl = HP/LP depending on VxRequest * VextSupply1RequestCtrl = HP/LP depending on VxRequest */ - INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL2, 0x00), + INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL2, 0xf0, 0x00), /* * VextSupply2RequestCtrl = HP/LP depending on VxRequest * VextSupply3RequestCtrl = HP/LP depending on VxRequest * Vaux1RequestCtrl = HP/LP depending on VxRequest * Vaux2RequestCtrl = HP/LP depending on VxRequest */ - INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL3, 0x00), + INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL3, 0xff, 0x00), /* * Vaux3RequestCtrl = HP/LP depending on VxRequest * SwHPReq = Control through SWValid disabled */ - INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL4, 0x00), + INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL4, 0x07, 0x00), /* * VanaSysClkReq1HPValid = disabled * Vaux1SysClkReq1HPValid = disabled * Vaux2SysClkReq1HPValid = disabled * Vaux3SysClkReq1HPValid = disabled */ - INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQ1HPVALID1, 0x00), + INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQ1HPVALID1, 0xe8, 0x00), /* * VextSupply1SysClkReq1HPValid = disabled * VextSupply2SysClkReq1HPValid = disabled * VextSupply3SysClkReq1HPValid = SysClkReq1 controlled */ - INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQ1HPVALID2, 0x40), + INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQ1HPVALID2, 0x70, 0x40), /* * VanaHwHPReq1Valid = disabled * Vaux1HwHPreq1Valid = disabled * Vaux2HwHPReq1Valid = disabled * Vaux3HwHPReqValid = disabled */ - INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ1VALID1, 0x00), + INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ1VALID1, 0xe8, 0x00), /* * VextSupply1HwHPReq1Valid = disabled * VextSupply2HwHPReq1Valid = disabled * VextSupply3HwHPReq1Valid = disabled */ - INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ1VALID2, 0x00), + INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ1VALID2, 0x07, 0x00), /* * VanaHwHPReq2Valid = disabled * Vaux1HwHPReq2Valid = disabled * Vaux2HwHPReq2Valid = disabled * Vaux3HwHPReq2Valid = disabled */ - INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ2VALID1, 0x00), + INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ2VALID1, 0xe8, 0x00), /* * VextSupply1HwHPReq2Valid = disabled * VextSupply2HwHPReq2Valid = disabled * VextSupply3HwHPReq2Valid = HWReq2 controlled */ - INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ2VALID2, 0x04), + INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ2VALID2, 0x07, 0x04), /* * VanaSwHPReqValid = disabled * Vaux1SwHPReqValid = disabled */ - INIT_REGULATOR_REGISTER(AB8500_REGUSWHPREQVALID1, 0x00), + INIT_REGULATOR_REGISTER(AB8500_REGUSWHPREQVALID1, 0xa0, 0x00), /* * Vaux2SwHPReqValid = disabled * Vaux3SwHPReqValid = disabled @@ -192,7 +255,7 @@ ab8500_regulator_reg_init[AB8500_NUM_REGULATOR_REGISTERS] = { * VextSupply2SwHPReqValid = disabled * VextSupply3SwHPReqValid = disabled */ - INIT_REGULATOR_REGISTER(AB8500_REGUSWHPREQVALID2, 0x00), + INIT_REGULATOR_REGISTER(AB8500_REGUSWHPREQVALID2, 0x1f, 0x00), /* * SysClkReq2Valid1 = SysClkReq2 controlled * SysClkReq3Valid1 = disabled @@ -202,7 +265,7 @@ ab8500_regulator_reg_init[AB8500_NUM_REGULATOR_REGISTERS] = { * SysClkReq7Valid1 = disabled * SysClkReq8Valid1 = disabled */ - INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQVALID1, 0x2a), + INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQVALID1, 0xfe, 0x2a), /* * SysClkReq2Valid2 = disabled * SysClkReq3Valid2 = disabled @@ -212,7 +275,7 @@ ab8500_regulator_reg_init[AB8500_NUM_REGULATOR_REGISTERS] = { * SysClkReq7Valid2 = disabled * SysClkReq8Valid2 = disabled */ - INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQVALID2, 0x20), + INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQVALID2, 0xfe, 0x20), /* * VTVoutEna = disabled * Vintcore12Ena = disabled @@ -220,66 +283,62 @@ ab8500_regulator_reg_init[AB8500_NUM_REGULATOR_REGISTERS] = { * Vintcore12LP = inactive (HP) * VTVoutLP = inactive (HP) */ - INIT_REGULATOR_REGISTER(AB8500_REGUMISC1, 0x10), + INIT_REGULATOR_REGISTER(AB8500_REGUMISC1, 0xfe, 0x10), /* * VaudioEna = disabled * VdmicEna = disabled * Vamic1Ena = disabled * Vamic2Ena = disabled */ - INIT_REGULATOR_REGISTER(AB8500_VAUDIOSUPPLY, 0x00), + INIT_REGULATOR_REGISTER(AB8500_VAUDIOSUPPLY, 0x1e, 0x00), /* * Vamic1_dzout = high-Z when Vamic1 is disabled * Vamic2_dzout = high-Z when Vamic2 is disabled */ - INIT_REGULATOR_REGISTER(AB8500_REGUCTRL1VAMIC, 0x00), + INIT_REGULATOR_REGISTER(AB8500_REGUCTRL1VAMIC, 0x03, 0x00), /* - * VPll = Hw controlled + * VPll = Hw controlled (NOTE! PRCMU bits) * VanaRegu = force off */ - INIT_REGULATOR_REGISTER(AB8500_VPLLVANAREGU, 0x02), + INIT_REGULATOR_REGISTER(AB8500_VPLLVANAREGU, 0x0f, 0x02), /* * VrefDDREna = disabled * VrefDDRSleepMode = inactive (no pulldown) */ - INIT_REGULATOR_REGISTER(AB8500_VREFDDR, 0x00), + INIT_REGULATOR_REGISTER(AB8500_VREFDDR, 0x03, 0x00), /* - * VextSupply1Regu = HW control - * VextSupply2Regu = HW control - * VextSupply3Regu = HW control + * VextSupply1Regu = force LP + * VextSupply2Regu = force OFF + * VextSupply3Regu = force HP (-> STBB2=LP and TPS=LP) * ExtSupply2Bypass = ExtSupply12LPn ball is 0 when Ena is 0 * ExtSupply3Bypass = ExtSupply3LPn ball is 0 when Ena is 0 */ - INIT_REGULATOR_REGISTER(AB8500_EXTSUPPLYREGU, 0x2a), + INIT_REGULATOR_REGISTER(AB8500_EXTSUPPLYREGU, 0xff, 0x13), /* * Vaux1Regu = force HP * Vaux2Regu = force off */ - INIT_REGULATOR_REGISTER(AB8500_VAUX12REGU, 0x01), + INIT_REGULATOR_REGISTER(AB8500_VAUX12REGU, 0x0f, 0x01), /* - * Vaux3regu = force off + * Vaux3Regu = force off */ - INIT_REGULATOR_REGISTER(AB8500_VRF1VAUX3REGU, 0x00), + INIT_REGULATOR_REGISTER(AB8500_VRF1VAUX3REGU, 0x03, 0x00), /* - * Vsmps1 = 1.15V + * Vaux1Sel = 2.8 V */ - INIT_REGULATOR_REGISTER(AB8500_VSMPS1SEL1, 0x24), - /* - * Vaux1Sel = 2.5 V - */ - INIT_REGULATOR_REGISTER(AB8500_VAUX1SEL, 0x08), + INIT_REGULATOR_REGISTER(AB8500_VAUX1SEL, 0x0f, 0x0C), /* * Vaux2Sel = 2.9 V */ - INIT_REGULATOR_REGISTER(AB8500_VAUX2SEL, 0x0d), + INIT_REGULATOR_REGISTER(AB8500_VAUX2SEL, 0x0f, 0x0d), /* * Vaux3Sel = 2.91 V */ - INIT_REGULATOR_REGISTER(AB8500_VRF1VAUX3SEL, 0x07), + INIT_REGULATOR_REGISTER(AB8500_VRF1VAUX3SEL, 0x07, 0x07), /* * VextSupply12LP = disabled (no LP) */ - INIT_REGULATOR_REGISTER(AB8500_REGUCTRL2SPARE, 0x00), + INIT_REGULATOR_REGISTER(AB8500_REGUCTRL2SPARE, 0x01, 0x00), /* * Vaux1Disch = short discharge time * Vaux2Disch = short discharge time @@ -288,33 +347,26 @@ ab8500_regulator_reg_init[AB8500_NUM_REGULATOR_REGISTERS] = { * VTVoutDisch = short discharge time * VaudioDisch = short discharge time */ - INIT_REGULATOR_REGISTER(AB8500_REGUCTRLDISCH, 0x00), + INIT_REGULATOR_REGISTER(AB8500_REGUCTRLDISCH, 0xfc, 0x00), /* * VanaDisch = short discharge time * VdmicPullDownEna = pulldown disabled when Vdmic is disabled * VdmicDisch = short discharge time */ - INIT_REGULATOR_REGISTER(AB8500_REGUCTRLDISCH2, 0x00), + INIT_REGULATOR_REGISTER(AB8500_REGUCTRLDISCH2, 0x16, 0x00), }; /* AB8500 regulators */ -struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS] = { +static struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS] = { /* supplies to the display/camera */ [AB8500_LDO_AUX1] = { .constraints = { .name = "V-DISPLAY", - .min_uV = 2500000, - .max_uV = 2900000, + .min_uV = 2800000, + .max_uV = 3300000, .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | REGULATOR_CHANGE_STATUS, .boot_on = 1, /* display is on at boot */ - /* - * This voltage cannot be disabled right now because - * it is somehow affecting the external MMC - * functionality, though that typically will use - * AUX3. - */ - .always_on = 1, }, .num_consumer_supplies = ARRAY_SIZE(ab8500_vaux1_consumers), .consumer_supplies = ab8500_vaux1_consumers, @@ -326,7 +378,10 @@ struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS] = { .min_uV = 1100000, .max_uV = 3300000, .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | - REGULATOR_CHANGE_STATUS, + REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_MODE, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_IDLE, }, .num_consumer_supplies = ARRAY_SIZE(ab8500_vaux2_consumers), .consumer_supplies = ab8500_vaux2_consumers, @@ -338,7 +393,10 @@ struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS] = { .min_uV = 1100000, .max_uV = 3300000, .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | - REGULATOR_CHANGE_STATUS, + REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_MODE, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_IDLE, }, .num_consumer_supplies = ARRAY_SIZE(ab8500_vaux3_consumers), .consumer_supplies = ab8500_vaux3_consumers, @@ -392,18 +450,614 @@ struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS] = { [AB8500_LDO_INTCORE] = { .constraints = { .name = "V-INTCORE", - .valid_ops_mask = REGULATOR_CHANGE_STATUS, + .min_uV = 1250000, + .max_uV = 1350000, + .input_uV = 1800000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_MODE | + REGULATOR_CHANGE_DRMS, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_IDLE, }, .num_consumer_supplies = ARRAY_SIZE(ab8500_vintcore_consumers), .consumer_supplies = ab8500_vintcore_consumers, }, - /* supply for U8500 CSI/DSI, VANA LDO */ + /* supply for U8500 CSI-DSI, VANA LDO */ [AB8500_LDO_ANA] = { .constraints = { - .name = "V-CSI/DSI", + .name = "V-CSI-DSI", .valid_ops_mask = REGULATOR_CHANGE_STATUS, }, .num_consumer_supplies = ARRAY_SIZE(ab8500_vana_consumers), .consumer_supplies = ab8500_vana_consumers, }, }; + +/* supply for VextSupply3 */ +static struct regulator_consumer_supply ab8500_ext_supply3_consumers[] = { + /* SIM supply for 3 V SIM cards */ + REGULATOR_SUPPLY("vinvsim", "sim-detect.0"), +}; + +/* extended configuration for VextSupply2, only used for HREFP_V20 boards */ +static struct ab8500_ext_regulator_cfg ab8500_ext_supply2 = { + .hwreq = true, +}; + +/* + * AB8500 external regulators + */ +static struct regulator_init_data ab8500_ext_regulators[] = { + /* fixed Vbat supplies VSMPS1_EXT_1V8 */ + [AB8500_EXT_SUPPLY1] = { + .constraints = { + .name = "ab8500-ext-supply1", + .min_uV = 1800000, + .max_uV = 1800000, + .initial_mode = REGULATOR_MODE_IDLE, + .boot_on = 1, + .always_on = 1, + }, + }, + /* fixed Vbat supplies VSMPS2_EXT_1V36 and VSMPS5_EXT_1V15 */ + [AB8500_EXT_SUPPLY2] = { + .constraints = { + .name = "ab8500-ext-supply2", + .min_uV = 1360000, + .max_uV = 1360000, + }, + }, + /* fixed Vbat supplies VSMPS3_EXT_3V4 and VSMPS4_EXT_3V4 */ + [AB8500_EXT_SUPPLY3] = { + .constraints = { + .name = "ab8500-ext-supply3", + .min_uV = 3400000, + .max_uV = 3400000, + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + .boot_on = 1, + }, + .num_consumer_supplies = + ARRAY_SIZE(ab8500_ext_supply3_consumers), + .consumer_supplies = ab8500_ext_supply3_consumers, + }, +}; + +/* ab8505 regulator register initialization */ +static struct ab8500_regulator_reg_init ab8505_reg_init[] = { + /* + * VarmRequestCtrl + * VsmpsCRequestCtrl + * VsmpsARequestCtrl + * VsmpsBRequestCtrl + */ + INIT_REGULATOR_REGISTER(AB8505_REGUREQUESTCTRL1, 0x00, 0x00), + /* + * VsafeRequestCtrl + * VpllRequestCtrl + * VanaRequestCtrl = HP/LP depending on VxRequest + */ + INIT_REGULATOR_REGISTER(AB8505_REGUREQUESTCTRL2, 0x30, 0x00), + /* + * Vaux1RequestCtrl = HP/LP depending on VxRequest + * Vaux2RequestCtrl = HP/LP depending on VxRequest + */ + INIT_REGULATOR_REGISTER(AB8505_REGUREQUESTCTRL3, 0xf0, 0x00), + /* + * Vaux3RequestCtrl = HP/LP depending on VxRequest + * SwHPReq = Control through SWValid disabled + */ + INIT_REGULATOR_REGISTER(AB8505_REGUREQUESTCTRL4, 0x07, 0x00), + /* + * VsmpsASysClkReq1HPValid + * VsmpsBSysClkReq1HPValid + * VsafeSysClkReq1HPValid + * VanaSysClkReq1HPValid = disabled + * VpllSysClkReq1HPValid + * Vaux1SysClkReq1HPValid = disabled + * Vaux2SysClkReq1HPValid = disabled + * Vaux3SysClkReq1HPValid = disabled + */ + INIT_REGULATOR_REGISTER(AB8505_REGUSYSCLKREQ1HPVALID1, 0xe8, 0x00), + /* + * VsmpsCSysClkReq1HPValid + * VarmSysClkReq1HPValid + * VbbSysClkReq1HPValid + * VsmpsMSysClkReq1HPValid + */ + INIT_REGULATOR_REGISTER(AB8505_REGUSYSCLKREQ1HPVALID2, 0x00, 0x00), + /* + * VsmpsAHwHPReq1Valid + * VsmpsBHwHPReq1Valid + * VsafeHwHPReq1Valid + * VanaHwHPReq1Valid = disabled + * VpllHwHPReq1Valid + * Vaux1HwHPreq1Valid = disabled + * Vaux2HwHPReq1Valid = disabled + * Vaux3HwHPReqValid = disabled + */ + INIT_REGULATOR_REGISTER(AB8505_REGUHWHPREQ1VALID1, 0xe8, 0x00), + /* + * VsmpsMHwHPReq1Valid + */ + INIT_REGULATOR_REGISTER(AB8505_REGUHWHPREQ1VALID2, 0x00, 0x00), + /* + * VsmpsAHwHPReq2Valid + * VsmpsBHwHPReq2Valid + * VsafeHwHPReq2Valid + * VanaHwHPReq2Valid = disabled + * VpllHwHPReq2Valid + * Vaux1HwHPReq2Valid = disabled + * Vaux2HwHPReq2Valid = disabled + * Vaux3HwHPReq2Valid = disabled + */ + INIT_REGULATOR_REGISTER(AB8505_REGUHWHPREQ2VALID1, 0xe8, 0x00), + /* + * VsmpsMHwHPReq2Valid + */ + INIT_REGULATOR_REGISTER(AB8505_REGUHWHPREQ2VALID2, 0x00, 0x00), + /** + * VsmpsCSwHPReqValid + * VarmSwHPReqValid + * VsmpsASwHPReqValid + * VsmpsBSwHPReqValid + * VsafeSwHPReqValid + * VanaSwHPReqValid + * VanaSwHPReqValid = disabled + * VpllSwHPReqValid + * Vaux1SwHPReqValid = disabled + */ + INIT_REGULATOR_REGISTER(AB8505_REGUSWHPREQVALID1, 0xa0, 0x00), + /* + * Vaux2SwHPReqValid = disabled + * Vaux3SwHPReqValid = disabled + * VsmpsMSwHPReqValid + */ + INIT_REGULATOR_REGISTER(AB8505_REGUSWHPREQVALID2, 0x03, 0x00), + /* + * SysClkReq2Valid1 = SysClkReq2 controlled + * SysClkReq3Valid1 = disabled + * SysClkReq4Valid1 = SysClkReq4 controlled + */ + INIT_REGULATOR_REGISTER(AB8505_REGUSYSCLKREQVALID1, 0x0e, 0x0a), + /* + * SysClkReq2Valid2 = disabled + * SysClkReq3Valid2 = disabled + * SysClkReq4Valid2 = disabled + */ + INIT_REGULATOR_REGISTER(AB8505_REGUSYSCLKREQVALID2, 0x0e, 0x00), + /* + * Vaux4SwHPReqValid + * Vaux4HwHPReq2Valid + * Vaux4HwHPReq1Valid + * Vaux4SysClkReq1HPValid + */ + INIT_REGULATOR_REGISTER(AB8505_REGUVAUX4REQVALID, 0x00, 0x00), + /* + * VadcEna = disabled + * VintCore12Ena = disabled + * VintCore12Sel = 1.25 V + * VintCore12LP = inactive (HP) + * VadcLP = inactive (HP) + */ + INIT_REGULATOR_REGISTER(AB8505_REGUMISC1, 0xfe, 0x10), + /* + * VaudioEna = disabled + * Vaux8Ena = disabled + * Vamic1Ena = disabled + * Vamic2Ena = disabled + */ + INIT_REGULATOR_REGISTER(AB8505_VAUDIOSUPPLY, 0x1e, 0x00), + /* + * Vamic1_dzout = high-Z when Vamic1 is disabled + * Vamic2_dzout = high-Z when Vamic2 is disabled + */ + INIT_REGULATOR_REGISTER(AB8505_REGUCTRL1VAMIC, 0x03, 0x00), + /* + * VsmpsARegu + * VsmpsASelCtrl + * VsmpsAAutoMode + * VsmpsAPWMMode + */ + INIT_REGULATOR_REGISTER(AB8505_VSMPSAREGU, 0x00, 0x00), + /* + * VsmpsBRegu + * VsmpsBSelCtrl + * VsmpsBAutoMode + * VsmpsBPWMMode + */ + INIT_REGULATOR_REGISTER(AB8505_VSMPSBREGU, 0x00, 0x00), + /* + * VsafeRegu + * VsafeSelCtrl + * VsafeAutoMode + * VsafePWMMode + */ + INIT_REGULATOR_REGISTER(AB8505_VSAFEREGU, 0x00, 0x00), + /* + * VPll = Hw controlled (NOTE! PRCMU bits) + * VanaRegu = force off + */ + INIT_REGULATOR_REGISTER(AB8505_VPLLVANAREGU, 0x0f, 0x02), + /* + * VextSupply1Regu = force OFF (OTP_ExtSupply12LPnPolarity 1) + * VextSupply2Regu = force OFF (OTP_ExtSupply12LPnPolarity 1) + * VextSupply3Regu = force OFF (OTP_ExtSupply3LPnPolarity 0) + * ExtSupply2Bypass = ExtSupply12LPn ball is 0 when Ena is 0 + * ExtSupply3Bypass = ExtSupply3LPn ball is 0 when Ena is 0 + */ + INIT_REGULATOR_REGISTER(AB8505_EXTSUPPLYREGU, 0xff, 0x30), + /* + * Vaux1Regu = force HP + * Vaux2Regu = force off + */ + INIT_REGULATOR_REGISTER(AB8505_VAUX12REGU, 0x0f, 0x01), + /* + * Vaux3Regu = force off + */ + INIT_REGULATOR_REGISTER(AB8505_VRF1VAUX3REGU, 0x03, 0x00), + /* + * VsmpsASel1 + */ + INIT_REGULATOR_REGISTER(AB8505_VSMPSASEL1, 0x00, 0x00), + /* + * VsmpsASel2 + */ + INIT_REGULATOR_REGISTER(AB8505_VSMPSASEL2, 0x00, 0x00), + /* + * VsmpsASel3 + */ + INIT_REGULATOR_REGISTER(AB8505_VSMPSASEL3, 0x00, 0x00), + /* + * VsmpsBSel1 + */ + INIT_REGULATOR_REGISTER(AB8505_VSMPSBSEL1, 0x00, 0x00), + /* + * VsmpsBSel2 + */ + INIT_REGULATOR_REGISTER(AB8505_VSMPSBSEL2, 0x00, 0x00), + /* + * VsmpsBSel3 + */ + INIT_REGULATOR_REGISTER(AB8505_VSMPSBSEL3, 0x00, 0x00), + /* + * VsafeSel1 + */ + INIT_REGULATOR_REGISTER(AB8505_VSAFESEL1, 0x00, 0x00), + /* + * VsafeSel2 + */ + INIT_REGULATOR_REGISTER(AB8505_VSAFESEL2, 0x00, 0x00), + /* + * VsafeSel3 + */ + INIT_REGULATOR_REGISTER(AB8505_VSAFESEL3, 0x00, 0x00), + /* + * Vaux1Sel = 2.8 V + */ + INIT_REGULATOR_REGISTER(AB8505_VAUX1SEL, 0x0f, 0x0C), + /* + * Vaux2Sel = 2.9 V + */ + INIT_REGULATOR_REGISTER(AB8505_VAUX2SEL, 0x0f, 0x0d), + /* + * Vaux3Sel = 2.91 V + */ + INIT_REGULATOR_REGISTER(AB8505_VRF1VAUX3SEL, 0x07, 0x07), + /* + * Vaux4RequestCtrl + */ + INIT_REGULATOR_REGISTER(AB8505_VAUX4REQCTRL, 0x00, 0x00), + /* + * Vaux4Regu + */ + INIT_REGULATOR_REGISTER(AB8505_VAUX4REGU, 0x00, 0x00), + /* + * Vaux4Sel + */ + INIT_REGULATOR_REGISTER(AB8505_VAUX4SEL, 0x00, 0x00), + /* + * Vaux1Disch = short discharge time + * Vaux2Disch = short discharge time + * Vaux3Disch = short discharge time + * Vintcore12Disch = short discharge time + * VTVoutDisch = short discharge time + * VaudioDisch = short discharge time + */ + INIT_REGULATOR_REGISTER(AB8505_REGUCTRLDISCH, 0xfc, 0x00), + /* + * VanaDisch = short discharge time + * Vaux8PullDownEna = pulldown disabled when Vaux8 is disabled + * Vaux8Disch = short discharge time + */ + INIT_REGULATOR_REGISTER(AB8505_REGUCTRLDISCH2, 0x16, 0x00), + /* + * Vaux4Disch = short discharge time + */ + INIT_REGULATOR_REGISTER(AB8505_REGUCTRLDISCH3, 0x01, 0x00), + /* + * Vaux5Sel + * Vaux5LP + * Vaux5Ena + * Vaux5Disch + * Vaux5DisSfst + * Vaux5DisPulld + */ + INIT_REGULATOR_REGISTER(AB8505_CTRLVAUX5, 0x00, 0x00), + /* + * Vaux6Sel + * Vaux6LP + * Vaux6Ena + * Vaux6DisPulld + */ + INIT_REGULATOR_REGISTER(AB8505_CTRLVAUX6, 0x00, 0x00), +}; + +struct regulator_init_data ab8505_regulators[AB8505_NUM_REGULATORS] = { + /* supplies to the display/camera */ + [AB8505_LDO_AUX1] = { + .constraints = { + .name = "V-DISPLAY", + .min_uV = 2800000, + .max_uV = 3300000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_STATUS, + .boot_on = 1, /* display is on at boot */ + }, + .num_consumer_supplies = ARRAY_SIZE(ab8500_vaux1_consumers), + .consumer_supplies = ab8500_vaux1_consumers, + }, + /* supplies to the on-board eMMC */ + [AB8505_LDO_AUX2] = { + .constraints = { + .name = "V-eMMC1", + .min_uV = 1100000, + .max_uV = 3300000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_MODE, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_IDLE, + }, + .num_consumer_supplies = ARRAY_SIZE(ab8500_vaux2_consumers), + .consumer_supplies = ab8500_vaux2_consumers, + }, + /* supply for VAUX3, supplies to SDcard slots */ + [AB8505_LDO_AUX3] = { + .constraints = { + .name = "V-MMC-SD", + .min_uV = 1100000, + .max_uV = 3300000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_MODE, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_IDLE, + }, + .num_consumer_supplies = ARRAY_SIZE(ab8500_vaux3_consumers), + .consumer_supplies = ab8500_vaux3_consumers, + }, + /* supply for VAUX4, supplies to NFC and standalone secure element */ + [AB8505_LDO_AUX4] = { + .constraints = { + .name = "V-NFC-SE", + .min_uV = 1100000, + .max_uV = 3300000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_MODE, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_IDLE, + }, + .num_consumer_supplies = ARRAY_SIZE(ab8505_vaux4_consumers), + .consumer_supplies = ab8505_vaux4_consumers, + }, + /* supply for VAUX5, supplies to TBD */ + [AB8505_LDO_AUX5] = { + .constraints = { + .name = "V-AUX5", + .min_uV = 1050000, + .max_uV = 2790000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_MODE, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_IDLE, + }, + .num_consumer_supplies = ARRAY_SIZE(ab8505_vaux5_consumers), + .consumer_supplies = ab8505_vaux5_consumers, + }, + /* supply for VAUX6, supplies to TBD */ + [AB8505_LDO_AUX6] = { + .constraints = { + .name = "V-AUX6", + .min_uV = 1050000, + .max_uV = 2790000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_MODE, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_IDLE, + }, + .num_consumer_supplies = ARRAY_SIZE(ab8505_vaux6_consumers), + .consumer_supplies = ab8505_vaux6_consumers, + }, + /* supply for gpadc, ADC LDO */ + [AB8505_LDO_ADC] = { + .constraints = { + .name = "V-ADC", + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = ARRAY_SIZE(ab8505_vadc_consumers), + .consumer_supplies = ab8505_vadc_consumers, + }, + /* supply for ab8500-vaudio, VAUDIO LDO */ + [AB8505_LDO_AUDIO] = { + .constraints = { + .name = "V-AUD", + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = ARRAY_SIZE(ab8500_vaud_consumers), + .consumer_supplies = ab8500_vaud_consumers, + }, + /* supply for v-anamic1 VAMic1-LDO */ + [AB8505_LDO_ANAMIC1] = { + .constraints = { + .name = "V-AMIC1", + .valid_ops_mask = REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_MODE, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_IDLE, + }, + .num_consumer_supplies = ARRAY_SIZE(ab8500_vamic1_consumers), + .consumer_supplies = ab8500_vamic1_consumers, + }, + /* supply for v-amic2, VAMIC2 LDO, reuse constants for AMIC1 */ + [AB8505_LDO_ANAMIC2] = { + .constraints = { + .name = "V-AMIC2", + .valid_ops_mask = REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_MODE, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_IDLE, + }, + .num_consumer_supplies = ARRAY_SIZE(ab8500_vamic2_consumers), + .consumer_supplies = ab8500_vamic2_consumers, + }, + /* supply for v-aux8, VAUX8 LDO */ + [AB8505_LDO_AUX8] = { + .constraints = { + .name = "V-AUX8", + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = ARRAY_SIZE(ab8505_vaux8_consumers), + .consumer_supplies = ab8505_vaux8_consumers, + }, + /* supply for v-intcore12, VINTCORE12 LDO */ + [AB8505_LDO_INTCORE] = { + .constraints = { + .name = "V-INTCORE", + .min_uV = 1250000, + .max_uV = 1350000, + .input_uV = 1800000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_MODE | + REGULATOR_CHANGE_DRMS, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_IDLE, + }, + .num_consumer_supplies = ARRAY_SIZE(ab8500_vintcore_consumers), + .consumer_supplies = ab8500_vintcore_consumers, + }, + /* supply for LDO USB */ + [AB8505_LDO_USB] = { + .constraints = { + .name = "V-USB", + .valid_ops_mask = REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_MODE, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_IDLE, + }, + .num_consumer_supplies = ARRAY_SIZE(ab8505_usb_consumers), + .consumer_supplies = ab8505_usb_consumers, + }, + /* supply for U8500 CSI-DSI, VANA LDO */ + [AB8505_LDO_ANA] = { + .constraints = { + .name = "V-CSI-DSI", + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = ARRAY_SIZE(ab8500_vana_consumers), + .consumer_supplies = ab8500_vana_consumers, + }, +}; + +struct ab8500_regulator_platform_data ab8500_regulator_plat_data = { + .reg_init = ab8500_reg_init, + .num_reg_init = ARRAY_SIZE(ab8500_reg_init), + .regulator = ab8500_regulators, + .num_regulator = ARRAY_SIZE(ab8500_regulators), + .ext_regulator = ab8500_ext_regulators, + .num_ext_regulator = ARRAY_SIZE(ab8500_ext_regulators), +}; + +/* Use the AB8500 init settings for AB8505 as they are the same right now */ +struct ab8500_regulator_platform_data ab8505_regulator_plat_data = { + .reg_init = ab8505_reg_init, + .num_reg_init = ARRAY_SIZE(ab8505_reg_init), + .regulator = ab8505_regulators, + .num_regulator = ARRAY_SIZE(ab8505_regulators), +}; + +static void ab8500_modify_reg_init(int id, u8 mask, u8 value) +{ + int i; + + if (cpu_is_u8520()) { + for (i = ARRAY_SIZE(ab8505_reg_init) - 1; i >= 0; i--) { + if (ab8505_reg_init[i].id == id) { + u8 initval = ab8505_reg_init[i].value; + initval = (initval & ~mask) | (value & mask); + ab8505_reg_init[i].value = initval; + + BUG_ON(mask & ~ab8505_reg_init[i].mask); + return; + } + } + } else { + for (i = ARRAY_SIZE(ab8500_reg_init) - 1; i >= 0; i--) { + if (ab8500_reg_init[i].id == id) { + u8 initval = ab8500_reg_init[i].value; + initval = (initval & ~mask) | (value & mask); + ab8500_reg_init[i].value = initval; + + BUG_ON(mask & ~ab8500_reg_init[i].mask); + return; + } + } + } + + BUG_ON(1); +} + +void mop500_regulator_init(void) +{ + struct regulator_init_data *regulator; + + /* + * Temporarily turn on Vaux2 on 8520 machine + */ + if (cpu_is_u8520()) { + /* Vaux2 initialized to be on */ + ab8500_modify_reg_init(AB8505_VAUX12REGU, 0x0f, 0x05); + } + + /* + * Handle AB8500_EXT_SUPPLY2 on HREFP_V20_V50 boards (do it for + * all HREFP_V20 boards) + */ + if (cpu_is_u8500v20()) { + /* VextSupply2RequestCtrl = HP/OFF depending on VxRequest */ + ab8500_modify_reg_init(AB8500_REGUREQUESTCTRL3, 0x01, 0x01); + + /* VextSupply2SysClkReq1HPValid = SysClkReq1 controlled */ + ab8500_modify_reg_init(AB8500_REGUSYSCLKREQ1HPVALID2, + 0x20, 0x20); + + /* VextSupply2 = force HP at initialization */ + ab8500_modify_reg_init(AB8500_EXTSUPPLYREGU, 0x0c, 0x04); + + /* enable VextSupply2 during platform active */ + regulator = &ab8500_ext_regulators[AB8500_EXT_SUPPLY2]; + regulator->constraints.always_on = 1; + + /* disable VextSupply2 in suspend */ + regulator = &ab8500_ext_regulators[AB8500_EXT_SUPPLY2]; + regulator->constraints.state_mem.disabled = 1; + regulator->constraints.state_standby.disabled = 1; + + /* enable VextSupply2 HW control (used in suspend) */ + regulator->driver_data = (void *)&ab8500_ext_supply2; + } +} diff --git a/arch/arm/mach-ux500/board-mop500-regulators.h b/arch/arm/mach-ux500/board-mop500-regulators.h index 78a0642..9bece38 100644 --- a/arch/arm/mach-ux500/board-mop500-regulators.h +++ b/arch/arm/mach-ux500/board-mop500-regulators.h @@ -14,10 +14,11 @@ #include <linux/regulator/machine.h> #include <linux/regulator/ab8500.h> -extern struct ab8500_regulator_reg_init -ab8500_regulator_reg_init[AB8500_NUM_REGULATOR_REGISTERS]; -extern struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS]; +extern struct ab8500_regulator_platform_data ab8500_regulator_plat_data; +extern struct ab8500_regulator_platform_data ab8505_regulator_plat_data; extern struct regulator_init_data tps61052_regulator; extern struct regulator_init_data gpio_en_3v3_regulator; +void mop500_regulator_init(void); + #endif diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index 87d2d7b..ce67237 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -199,10 +199,7 @@ static struct platform_device snowball_sbnet_dev = { struct ab8500_platform_data ab8500_platdata = { .irq_base = MOP500_AB8500_IRQ_BASE, - .regulator_reg_init = ab8500_regulator_reg_init, - .num_regulator_reg_init = ARRAY_SIZE(ab8500_regulator_reg_init), - .regulator = ab8500_regulators, - .num_regulator = ARRAY_SIZE(ab8500_regulators), + .regulator = &ab8500_regulator_plat_data, .gpio = &ab8500_gpio_pdata, .codec = &ab8500_codec_pdata, }; diff --git a/arch/arm/mach-ux500/cpuidle.c b/arch/arm/mach-ux500/cpuidle.c index ce91493..488e074 100644 --- a/arch/arm/mach-ux500/cpuidle.c +++ b/arch/arm/mach-ux500/cpuidle.c @@ -11,7 +11,6 @@ #include <linux/module.h> #include <linux/cpuidle.h> -#include <linux/clockchips.h> #include <linux/spinlock.h> #include <linux/atomic.h> #include <linux/smp.h> @@ -22,7 +21,6 @@ static atomic_t master = ATOMIC_INIT(0); static DEFINE_SPINLOCK(master_lock); -static DEFINE_PER_CPU(struct cpuidle_device, ux500_cpuidle_device); static inline int ux500_enter_idle(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) @@ -30,8 +28,6 @@ static inline int ux500_enter_idle(struct cpuidle_device *dev, int this_cpu = smp_processor_id(); bool recouple = false; - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &this_cpu); - if (atomic_inc_return(&master) == num_online_cpus()) { /* With this lock, we prevent the other cpu to exit and enter @@ -91,22 +87,20 @@ out: spin_unlock(&master_lock); } - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &this_cpu); - return index; } static struct cpuidle_driver ux500_idle_driver = { .name = "ux500_idle", .owner = THIS_MODULE, - .en_core_tk_irqen = 1, .states = { ARM_CPUIDLE_WFI_STATE, { .enter = ux500_enter_idle, .exit_latency = 70, .target_residency = 260, - .flags = CPUIDLE_FLAG_TIME_VALID, + .flags = CPUIDLE_FLAG_TIME_VALID | + CPUIDLE_FLAG_TIMER_STOP, .name = "ApIdle", .desc = "ARM Retention", }, @@ -115,59 +109,13 @@ static struct cpuidle_driver ux500_idle_driver = { .state_count = 2, }; -/* - * For each cpu, setup the broadcast timer because we will - * need to migrate the timers for the states >= ApIdle. - */ -static void ux500_setup_broadcast_timer(void *arg) -{ - int cpu = smp_processor_id(); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &cpu); -} - int __init ux500_idle_init(void) { - int ret, cpu; - struct cpuidle_device *device; - /* Configure wake up reasons */ prcmu_enable_wakeups(PRCMU_WAKEUP(ARM) | PRCMU_WAKEUP(RTC) | PRCMU_WAKEUP(ABB)); - /* - * Configure the timer broadcast for each cpu, that must - * be done from the cpu context, so we use a smp cross - * call with 'on_each_cpu'. - */ - on_each_cpu(ux500_setup_broadcast_timer, NULL, 1); - - ret = cpuidle_register_driver(&ux500_idle_driver); - if (ret) { - printk(KERN_ERR "failed to register ux500 idle driver\n"); - return ret; - } - - for_each_online_cpu(cpu) { - device = &per_cpu(ux500_cpuidle_device, cpu); - device->cpu = cpu; - ret = cpuidle_register_device(device); - if (ret) { - printk(KERN_ERR "Failed to register cpuidle " - "device for cpu%d\n", cpu); - goto out_unregister; - } - } -out: - return ret; - -out_unregister: - for_each_online_cpu(cpu) { - device = &per_cpu(ux500_cpuidle_device, cpu); - cpuidle_unregister_device(device); - } - - cpuidle_unregister_driver(&ux500_idle_driver); - goto out; + return cpuidle_register(&ux500_idle_driver, NULL); } device_initcall(ux500_idle_init); diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig index 52d315b..0f1c5e5 100644 --- a/arch/arm/mach-vexpress/Kconfig +++ b/arch/arm/mach-vexpress/Kconfig @@ -17,6 +17,9 @@ config ARCH_VEXPRESS select NO_IOPORT select PLAT_VERSATILE select PLAT_VERSATILE_CLCD + select POWER_RESET + select POWER_RESET_VEXPRESS + select POWER_SUPPLY select REGULATOR_FIXED_VOLTAGE if REGULATOR select VEXPRESS_CONFIG help diff --git a/arch/arm/mach-vexpress/Makefile b/arch/arm/mach-vexpress/Makefile index 80b6497..42703e8 100644 --- a/arch/arm/mach-vexpress/Makefile +++ b/arch/arm/mach-vexpress/Makefile @@ -4,7 +4,7 @@ ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include \ -I$(srctree)/arch/arm/plat-versatile/include -obj-y := v2m.o reset.o +obj-y := v2m.o obj-$(CONFIG_ARCH_VEXPRESS_CA9X4) += ct-ca9x4.o obj-$(CONFIG_SMP) += platsmp.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o diff --git a/arch/arm/mach-vexpress/reset.c b/arch/arm/mach-vexpress/reset.c deleted file mode 100644 index 465923a..0000000 --- a/arch/arm/mach-vexpress/reset.c +++ /dev/null @@ -1,141 +0,0 @@ -/* - * 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. - * - * 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. - * - * Copyright (C) 2012 ARM Limited - */ - -#include <linux/jiffies.h> -#include <linux/of.h> -#include <linux/of_device.h> -#include <linux/platform_device.h> -#include <linux/stat.h> -#include <linux/vexpress.h> - -static void vexpress_reset_do(struct device *dev, const char *what) -{ - int err = -ENOENT; - struct vexpress_config_func *func = - vexpress_config_func_get_by_dev(dev); - - if (func) { - unsigned long timeout; - - err = vexpress_config_write(func, 0, 0); - - timeout = jiffies + HZ; - while (time_before(jiffies, timeout)) - cpu_relax(); - } - - dev_emerg(dev, "Unable to %s (%d)\n", what, err); -} - -static struct device *vexpress_power_off_device; - -void vexpress_power_off(void) -{ - vexpress_reset_do(vexpress_power_off_device, "power off"); -} - -static struct device *vexpress_restart_device; - -void vexpress_restart(char str, const char *cmd) -{ - vexpress_reset_do(vexpress_restart_device, "restart"); -} - -static ssize_t vexpress_reset_active_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%d\n", vexpress_restart_device == dev); -} - -static ssize_t vexpress_reset_active_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - long value; - int err = kstrtol(buf, 0, &value); - - if (!err && value) - vexpress_restart_device = dev; - - return err ? err : count; -} - -DEVICE_ATTR(active, S_IRUGO | S_IWUSR, vexpress_reset_active_show, - vexpress_reset_active_store); - - -enum vexpress_reset_func { FUNC_RESET, FUNC_SHUTDOWN, FUNC_REBOOT }; - -static struct of_device_id vexpress_reset_of_match[] = { - { - .compatible = "arm,vexpress-reset", - .data = (void *)FUNC_RESET, - }, { - .compatible = "arm,vexpress-shutdown", - .data = (void *)FUNC_SHUTDOWN - }, { - .compatible = "arm,vexpress-reboot", - .data = (void *)FUNC_REBOOT - }, - {} -}; - -static int vexpress_reset_probe(struct platform_device *pdev) -{ - enum vexpress_reset_func func; - const struct of_device_id *match = - of_match_device(vexpress_reset_of_match, &pdev->dev); - - if (match) - func = (enum vexpress_reset_func)match->data; - else - func = pdev->id_entry->driver_data; - - switch (func) { - case FUNC_SHUTDOWN: - vexpress_power_off_device = &pdev->dev; - break; - case FUNC_RESET: - if (!vexpress_restart_device) - vexpress_restart_device = &pdev->dev; - device_create_file(&pdev->dev, &dev_attr_active); - break; - case FUNC_REBOOT: - vexpress_restart_device = &pdev->dev; - device_create_file(&pdev->dev, &dev_attr_active); - break; - }; - - return 0; -} - -static const struct platform_device_id vexpress_reset_id_table[] = { - { .name = "vexpress-reset", .driver_data = FUNC_RESET, }, - { .name = "vexpress-shutdown", .driver_data = FUNC_SHUTDOWN, }, - { .name = "vexpress-reboot", .driver_data = FUNC_REBOOT, }, - {} -}; - -static struct platform_driver vexpress_reset_driver = { - .probe = vexpress_reset_probe, - .driver = { - .name = "vexpress-reset", - .of_match_table = vexpress_reset_of_match, - }, - .id_table = vexpress_reset_id_table, -}; - -static int __init vexpress_reset_init(void) -{ - return platform_driver_register(&vexpress_reset_driver); -} -device_initcall(vexpress_reset_init); diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c index 915683c..eb2b3a6 100644 --- a/arch/arm/mach-vexpress/v2m.c +++ b/arch/arm/mach-vexpress/v2m.c @@ -21,6 +21,8 @@ #include <linux/regulator/fixed.h> #include <linux/regulator/machine.h> #include <linux/vexpress.h> +#include <linux/clk-provider.h> +#include <linux/clkdev.h> #include <asm/arch_timer.h> #include <asm/mach-types.h> @@ -361,8 +363,6 @@ static void __init v2m_init(void) for (i = 0; i < ARRAY_SIZE(v2m_amba_devs); i++) amba_device_register(v2m_amba_devs[i], &iomem_resource); - pm_power_off = vexpress_power_off; - ct_desc->init_tile(); } @@ -374,7 +374,6 @@ MACHINE_START(VEXPRESS, "ARM-Versatile Express") .init_irq = v2m_init_irq, .init_time = v2m_timer_init, .init_machine = v2m_init, - .restart = vexpress_restart, MACHINE_END static struct map_desc v2m_rs1_io_desc __initdata = { @@ -433,7 +432,7 @@ static void __init v2m_dt_timer_init(void) { struct device_node *node = NULL; - vexpress_clk_of_init(); + of_clk_init(NULL); do { node = of_find_compatible_node(node, NULL, "arm,sp804"); @@ -441,6 +440,10 @@ static void __init v2m_dt_timer_init(void) if (node) { pr_info("Using SP804 '%s' as a clock & events source\n", node->full_name); + WARN_ON(clk_register_clkdev(of_clk_get_by_name(node, + "timclken1"), "v2m-timer0", "sp804")); + WARN_ON(clk_register_clkdev(of_clk_get_by_name(node, + "timclken2"), "v2m-timer1", "sp804")); v2m_sp804_init(of_iomap(node, 0), irq_of_parse_and_map(node, 0)); } @@ -464,7 +467,6 @@ static void __init v2m_dt_init(void) { l2x0_of_init(0x00400000, 0xfe0fffff); of_platform_populate(NULL, v2m_dt_bus_match, NULL, NULL); - pm_power_off = vexpress_power_off; } static const char * const v2m_dt_match[] __initconst = { @@ -481,5 +483,4 @@ DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express") .init_irq = irqchip_init, .init_time = v2m_dt_timer_init, .init_machine = v2m_dt_init, - .restart = vexpress_restart, MACHINE_END diff --git a/arch/arm/mach-w90x900/dev.c b/arch/arm/mach-w90x900/dev.c index 7abdb96..e65a80a 100644 --- a/arch/arm/mach-w90x900/dev.c +++ b/arch/arm/mach-w90x900/dev.c @@ -19,6 +19,7 @@ #include <linux/init.h> #include <linux/platform_device.h> #include <linux/slab.h> +#include <linux/cpu.h> #include <linux/mtd/physmap.h> #include <linux/mtd/mtd.h> @@ -531,7 +532,7 @@ static struct platform_device *nuc900_public_dev[] __initdata = { void __init nuc900_board_init(struct platform_device **device, int size) { - disable_hlt(); + cpu_idle_poll_ctrl(true); platform_add_devices(device, size); platform_add_devices(nuc900_public_dev, ARRAY_SIZE(nuc900_public_dev)); spi_register_board_info(nuc900_spi_board_info, diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index ad722f1..9a5cdc0 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -99,6 +99,9 @@ void show_mem(unsigned int filter) printk("Mem-info:\n"); show_free_areas(filter); + if (filter & SHOW_MEM_FILTER_PAGE_COUNT) + return; + for_each_bank (i, mi) { struct membank *bank = &mi->bank[i]; unsigned int pfn1, pfn2; @@ -424,24 +427,6 @@ void __init bootmem_init(void) max_pfn = max_high - PHYS_PFN_OFFSET; } -static inline int free_area(unsigned long pfn, unsigned long end, char *s) -{ - unsigned int pages = 0, size = (end - pfn) << (PAGE_SHIFT - 10); - - for (; pfn < end; pfn++) { - struct page *page = pfn_to_page(pfn); - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - pages++; - } - - if (size && s) - printk(KERN_INFO "Freeing %s memory: %dK\n", s, size); - - return pages; -} - /* * Poison init memory with an undefined instruction (ARM) or a branch to an * undefined instruction (Thumb). @@ -534,6 +519,14 @@ static void __init free_unused_memmap(struct meminfo *mi) #endif } +#ifdef CONFIG_HIGHMEM +static inline void free_area_high(unsigned long pfn, unsigned long end) +{ + for (; pfn < end; pfn++) + free_highmem_page(pfn_to_page(pfn)); +} +#endif + static void __init free_highpages(void) { #ifdef CONFIG_HIGHMEM @@ -569,8 +562,7 @@ static void __init free_highpages(void) if (res_end > end) res_end = end; if (res_start != start) - totalhigh_pages += free_area(start, res_start, - NULL); + free_area_high(start, res_start); start = res_end; if (start == end) break; @@ -578,9 +570,8 @@ static void __init free_highpages(void) /* And now free anything which remains */ if (start < end) - totalhigh_pages += free_area(start, end, NULL); + free_area_high(start, end); } - totalram_pages += totalhigh_pages; #endif } @@ -609,8 +600,7 @@ void __init mem_init(void) #ifdef CONFIG_SA1111 /* now that our DMA memory is actually so designated, we can free it */ - totalram_pages += free_area(PHYS_PFN_OFFSET, - __phys_to_pfn(__pa(swapper_pg_dir)), NULL); + free_reserved_area(__va(PHYS_PFN_OFFSET), swapper_pg_dir, 0, NULL); #endif free_highpages(); @@ -738,16 +728,12 @@ void free_initmem(void) extern char __tcm_start, __tcm_end; poison_init_mem(&__tcm_start, &__tcm_end - &__tcm_start); - totalram_pages += free_area(__phys_to_pfn(__pa(&__tcm_start)), - __phys_to_pfn(__pa(&__tcm_end)), - "TCM link"); + free_reserved_area(&__tcm_start, &__tcm_end, 0, "TCM link"); #endif poison_init_mem(__init_begin, __init_end - __init_begin); if (!machine_is_integrator() && !machine_is_cintegrator()) - totalram_pages += free_area(__phys_to_pfn(__pa(__init_begin)), - __phys_to_pfn(__pa(__init_end)), - "init"); + free_initmem_default(0); } #ifdef CONFIG_BLK_DEV_INITRD @@ -758,9 +744,7 @@ void free_initrd_mem(unsigned long start, unsigned long end) { if (!keep_initrd) { poison_init_mem((void *)start, PAGE_ALIGN(end) - start); - totalram_pages += free_area(__phys_to_pfn(__pa(start)), - __phys_to_pfn(__pa(end)), - "initrd"); + free_reserved_area(start, end, 0, "initrd"); } } diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index 51afedd..03db14d 100644 --- a/arch/arm/plat-samsung/devs.c +++ b/arch/arm/plat-samsung/devs.c @@ -10,6 +10,7 @@ * published by the Free Software Foundation. */ +#include <linux/amba/pl330.h> #include <linux/kernel.h> #include <linux/types.h> #include <linux/interrupt.h> @@ -1552,6 +1553,9 @@ void __init s3c64xx_spi0_set_platdata(int (*cfg_gpio)(void), int src_clk_nr, pd.num_cs = num_cs; pd.src_clk_nr = src_clk_nr; pd.cfg_gpio = (cfg_gpio) ? cfg_gpio : s3c64xx_spi0_cfg_gpio; +#ifdef CONFIG_PL330_DMA + pd.filter = pl330_filter; +#endif s3c_set_platdata(&pd, sizeof(pd), &s3c64xx_device_spi0); } @@ -1590,6 +1594,9 @@ void __init s3c64xx_spi1_set_platdata(int (*cfg_gpio)(void), int src_clk_nr, pd.num_cs = num_cs; pd.src_clk_nr = src_clk_nr; pd.cfg_gpio = (cfg_gpio) ? cfg_gpio : s3c64xx_spi1_cfg_gpio; +#ifdef CONFIG_PL330_DMA + pd.filter = pl330_filter; +#endif s3c_set_platdata(&pd, sizeof(pd), &s3c64xx_device_spi1); } @@ -1628,6 +1635,9 @@ void __init s3c64xx_spi2_set_platdata(int (*cfg_gpio)(void), int src_clk_nr, pd.num_cs = num_cs; pd.src_clk_nr = src_clk_nr; pd.cfg_gpio = (cfg_gpio) ? cfg_gpio : s3c64xx_spi2_cfg_gpio; +#ifdef CONFIG_PL330_DMA + pd.filter = pl330_filter; +#endif s3c_set_platdata(&pd, sizeof(pd), &s3c64xx_device_spi2); } diff --git a/arch/arm/plat-samsung/include/plat/fb.h b/arch/arm/plat-samsung/include/plat/fb.h index b885322..9ae5072 100644 --- a/arch/arm/plat-samsung/include/plat/fb.h +++ b/arch/arm/plat-samsung/include/plat/fb.h @@ -15,55 +15,7 @@ #ifndef __PLAT_S3C_FB_H #define __PLAT_S3C_FB_H __FILE__ -/* S3C_FB_MAX_WIN - * Set to the maximum number of windows that any of the supported hardware - * can use. Since the platform data uses this for an array size, having it - * set to the maximum of any version of the hardware can do is safe. - */ -#define S3C_FB_MAX_WIN (5) - -/** - * struct s3c_fb_pd_win - per window setup data - * @xres : The window X size. - * @yres : The window Y size. - * @virtual_x: The virtual X size. - * @virtual_y: The virtual Y size. - */ -struct s3c_fb_pd_win { - unsigned short default_bpp; - unsigned short max_bpp; - unsigned short xres; - unsigned short yres; - unsigned short virtual_x; - unsigned short virtual_y; -}; - -/** - * struct s3c_fb_platdata - S3C driver platform specific information - * @setup_gpio: Setup the external GPIO pins to the right state to transfer - * the data from the display system to the connected display - * device. - * @vidcon0: The base vidcon0 values to control the panel data format. - * @vidcon1: The base vidcon1 values to control the panel data output. - * @vtiming: Video timing when connected to a RGB type panel. - * @win: The setup data for each hardware window, or NULL for unused. - * @display_mode: The LCD output display mode. - * - * The platform data supplies the video driver with all the information - * it requires to work with the display(s) attached to the machine. It - * controls the initial mode, the number of display windows (0 is always - * the base framebuffer) that are initialised etc. - * - */ -struct s3c_fb_platdata { - void (*setup_gpio)(void); - - struct s3c_fb_pd_win *win[S3C_FB_MAX_WIN]; - struct fb_videomode *vtiming; - - u32 vidcon0; - u32 vidcon1; -}; +#include <linux/platform_data/video_s3c.h> /** * s3c_fb_set_platdata() - Setup the FB device with platform data. diff --git a/arch/arm/plat-samsung/include/plat/regs-serial.h b/arch/arm/plat-samsung/include/plat/regs-serial.h index 29c26a8..f05f2af 100644 --- a/arch/arm/plat-samsung/include/plat/regs-serial.h +++ b/arch/arm/plat-samsung/include/plat/regs-serial.h @@ -1,281 +1 @@ -/* arch/arm/plat-samsung/include/plat/regs-serial.h - * - * From linux/include/asm-arm/hardware/serial_s3c2410.h - * - * Internal header file for Samsung S3C2410 serial ports (UART0-2) - * - * Copyright (C) 2002 Shane Nay (shane@minirl.com) - * - * Additional defines, Copyright 2003 Simtec Electronics (linux@simtec.co.uk) - * - * Adapted from: - * - * Internal header file for MX1ADS serial ports (UART1 & 2) - * - * Copyright (C) 2002 Shane Nay (shane@minirl.com) - * - * 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 -*/ - -#ifndef __ASM_ARM_REGS_SERIAL_H -#define __ASM_ARM_REGS_SERIAL_H - -#define S3C24XX_VA_UART0 (S3C_VA_UART) -#define S3C24XX_VA_UART1 (S3C_VA_UART + 0x4000 ) -#define S3C24XX_VA_UART2 (S3C_VA_UART + 0x8000 ) -#define S3C24XX_VA_UART3 (S3C_VA_UART + 0xC000 ) - -#define S3C2410_PA_UART0 (S3C24XX_PA_UART) -#define S3C2410_PA_UART1 (S3C24XX_PA_UART + 0x4000 ) -#define S3C2410_PA_UART2 (S3C24XX_PA_UART + 0x8000 ) -#define S3C2443_PA_UART3 (S3C24XX_PA_UART + 0xC000 ) - -#define S3C2410_URXH (0x24) -#define S3C2410_UTXH (0x20) -#define S3C2410_ULCON (0x00) -#define S3C2410_UCON (0x04) -#define S3C2410_UFCON (0x08) -#define S3C2410_UMCON (0x0C) -#define S3C2410_UBRDIV (0x28) -#define S3C2410_UTRSTAT (0x10) -#define S3C2410_UERSTAT (0x14) -#define S3C2410_UFSTAT (0x18) -#define S3C2410_UMSTAT (0x1C) - -#define S3C2410_LCON_CFGMASK ((0xF<<3)|(0x3)) - -#define S3C2410_LCON_CS5 (0x0) -#define S3C2410_LCON_CS6 (0x1) -#define S3C2410_LCON_CS7 (0x2) -#define S3C2410_LCON_CS8 (0x3) -#define S3C2410_LCON_CSMASK (0x3) - -#define S3C2410_LCON_PNONE (0x0) -#define S3C2410_LCON_PEVEN (0x5 << 3) -#define S3C2410_LCON_PODD (0x4 << 3) -#define S3C2410_LCON_PMASK (0x7 << 3) - -#define S3C2410_LCON_STOPB (1<<2) -#define S3C2410_LCON_IRM (1<<6) - -#define S3C2440_UCON_CLKMASK (3<<10) -#define S3C2440_UCON_CLKSHIFT (10) -#define S3C2440_UCON_PCLK (0<<10) -#define S3C2440_UCON_UCLK (1<<10) -#define S3C2440_UCON_PCLK2 (2<<10) -#define S3C2440_UCON_FCLK (3<<10) -#define S3C2443_UCON_EPLL (3<<10) - -#define S3C6400_UCON_CLKMASK (3<<10) -#define S3C6400_UCON_CLKSHIFT (10) -#define S3C6400_UCON_PCLK (0<<10) -#define S3C6400_UCON_PCLK2 (2<<10) -#define S3C6400_UCON_UCLK0 (1<<10) -#define S3C6400_UCON_UCLK1 (3<<10) - -#define S3C2440_UCON2_FCLK_EN (1<<15) -#define S3C2440_UCON0_DIVMASK (15 << 12) -#define S3C2440_UCON1_DIVMASK (15 << 12) -#define S3C2440_UCON2_DIVMASK (7 << 12) -#define S3C2440_UCON_DIVSHIFT (12) - -#define S3C2412_UCON_CLKMASK (3<<10) -#define S3C2412_UCON_CLKSHIFT (10) -#define S3C2412_UCON_UCLK (1<<10) -#define S3C2412_UCON_USYSCLK (3<<10) -#define S3C2412_UCON_PCLK (0<<10) -#define S3C2412_UCON_PCLK2 (2<<10) - -#define S3C2410_UCON_CLKMASK (1 << 10) -#define S3C2410_UCON_CLKSHIFT (10) -#define S3C2410_UCON_UCLK (1<<10) -#define S3C2410_UCON_SBREAK (1<<4) - -#define S3C2410_UCON_TXILEVEL (1<<9) -#define S3C2410_UCON_RXILEVEL (1<<8) -#define S3C2410_UCON_TXIRQMODE (1<<2) -#define S3C2410_UCON_RXIRQMODE (1<<0) -#define S3C2410_UCON_RXFIFO_TOI (1<<7) -#define S3C2443_UCON_RXERR_IRQEN (1<<6) -#define S3C2443_UCON_LOOPBACK (1<<5) - -#define S3C2410_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \ - S3C2410_UCON_RXILEVEL | \ - S3C2410_UCON_TXIRQMODE | \ - S3C2410_UCON_RXIRQMODE | \ - S3C2410_UCON_RXFIFO_TOI) - -#define S3C2410_UFCON_FIFOMODE (1<<0) -#define S3C2410_UFCON_TXTRIG0 (0<<6) -#define S3C2410_UFCON_RXTRIG8 (1<<4) -#define S3C2410_UFCON_RXTRIG12 (2<<4) - -/* S3C2440 FIFO trigger levels */ -#define S3C2440_UFCON_RXTRIG1 (0<<4) -#define S3C2440_UFCON_RXTRIG8 (1<<4) -#define S3C2440_UFCON_RXTRIG16 (2<<4) -#define S3C2440_UFCON_RXTRIG32 (3<<4) - -#define S3C2440_UFCON_TXTRIG0 (0<<6) -#define S3C2440_UFCON_TXTRIG16 (1<<6) -#define S3C2440_UFCON_TXTRIG32 (2<<6) -#define S3C2440_UFCON_TXTRIG48 (3<<6) - -#define S3C2410_UFCON_RESETBOTH (3<<1) -#define S3C2410_UFCON_RESETTX (1<<2) -#define S3C2410_UFCON_RESETRX (1<<1) - -#define S3C2410_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE | \ - S3C2410_UFCON_TXTRIG0 | \ - S3C2410_UFCON_RXTRIG8 ) - -#define S3C2410_UMCOM_AFC (1<<4) -#define S3C2410_UMCOM_RTS_LOW (1<<0) - -#define S3C2412_UMCON_AFC_63 (0<<5) /* same as s3c2443 */ -#define S3C2412_UMCON_AFC_56 (1<<5) -#define S3C2412_UMCON_AFC_48 (2<<5) -#define S3C2412_UMCON_AFC_40 (3<<5) -#define S3C2412_UMCON_AFC_32 (4<<5) -#define S3C2412_UMCON_AFC_24 (5<<5) -#define S3C2412_UMCON_AFC_16 (6<<5) -#define S3C2412_UMCON_AFC_8 (7<<5) - -#define S3C2410_UFSTAT_TXFULL (1<<9) -#define S3C2410_UFSTAT_RXFULL (1<<8) -#define S3C2410_UFSTAT_TXMASK (15<<4) -#define S3C2410_UFSTAT_TXSHIFT (4) -#define S3C2410_UFSTAT_RXMASK (15<<0) -#define S3C2410_UFSTAT_RXSHIFT (0) - -/* UFSTAT S3C2443 same as S3C2440 */ -#define S3C2440_UFSTAT_TXFULL (1<<14) -#define S3C2440_UFSTAT_RXFULL (1<<6) -#define S3C2440_UFSTAT_TXSHIFT (8) -#define S3C2440_UFSTAT_RXSHIFT (0) -#define S3C2440_UFSTAT_TXMASK (63<<8) -#define S3C2440_UFSTAT_RXMASK (63) - -#define S3C2410_UTRSTAT_TXE (1<<2) -#define S3C2410_UTRSTAT_TXFE (1<<1) -#define S3C2410_UTRSTAT_RXDR (1<<0) - -#define S3C2410_UERSTAT_OVERRUN (1<<0) -#define S3C2410_UERSTAT_FRAME (1<<2) -#define S3C2410_UERSTAT_BREAK (1<<3) -#define S3C2443_UERSTAT_PARITY (1<<1) - -#define S3C2410_UERSTAT_ANY (S3C2410_UERSTAT_OVERRUN | \ - S3C2410_UERSTAT_FRAME | \ - S3C2410_UERSTAT_BREAK) - -#define S3C2410_UMSTAT_CTS (1<<0) -#define S3C2410_UMSTAT_DeltaCTS (1<<2) - -#define S3C2443_DIVSLOT (0x2C) - -/* S3C64XX interrupt registers. */ -#define S3C64XX_UINTP 0x30 -#define S3C64XX_UINTSP 0x34 -#define S3C64XX_UINTM 0x38 - -#define S3C64XX_UINTM_RXD (0) -#define S3C64XX_UINTM_TXD (2) -#define S3C64XX_UINTM_RXD_MSK (1 << S3C64XX_UINTM_RXD) -#define S3C64XX_UINTM_TXD_MSK (1 << S3C64XX_UINTM_TXD) - -/* Following are specific to S5PV210 */ -#define S5PV210_UCON_CLKMASK (1<<10) -#define S5PV210_UCON_CLKSHIFT (10) -#define S5PV210_UCON_PCLK (0<<10) -#define S5PV210_UCON_UCLK (1<<10) - -#define S5PV210_UFCON_TXTRIG0 (0<<8) -#define S5PV210_UFCON_TXTRIG4 (1<<8) -#define S5PV210_UFCON_TXTRIG8 (2<<8) -#define S5PV210_UFCON_TXTRIG16 (3<<8) -#define S5PV210_UFCON_TXTRIG32 (4<<8) -#define S5PV210_UFCON_TXTRIG64 (5<<8) -#define S5PV210_UFCON_TXTRIG128 (6<<8) -#define S5PV210_UFCON_TXTRIG256 (7<<8) - -#define S5PV210_UFCON_RXTRIG1 (0<<4) -#define S5PV210_UFCON_RXTRIG4 (1<<4) -#define S5PV210_UFCON_RXTRIG8 (2<<4) -#define S5PV210_UFCON_RXTRIG16 (3<<4) -#define S5PV210_UFCON_RXTRIG32 (4<<4) -#define S5PV210_UFCON_RXTRIG64 (5<<4) -#define S5PV210_UFCON_RXTRIG128 (6<<4) -#define S5PV210_UFCON_RXTRIG256 (7<<4) - -#define S5PV210_UFSTAT_TXFULL (1<<24) -#define S5PV210_UFSTAT_RXFULL (1<<8) -#define S5PV210_UFSTAT_TXMASK (255<<16) -#define S5PV210_UFSTAT_TXSHIFT (16) -#define S5PV210_UFSTAT_RXMASK (255<<0) -#define S5PV210_UFSTAT_RXSHIFT (0) - -#define S3C2410_UCON_CLKSEL0 (1 << 0) -#define S3C2410_UCON_CLKSEL1 (1 << 1) -#define S3C2410_UCON_CLKSEL2 (1 << 2) -#define S3C2410_UCON_CLKSEL3 (1 << 3) - -/* Default values for s5pv210 UCON and UFCON uart registers */ -#define S5PV210_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \ - S3C2410_UCON_RXILEVEL | \ - S3C2410_UCON_TXIRQMODE | \ - S3C2410_UCON_RXIRQMODE | \ - S3C2410_UCON_RXFIFO_TOI | \ - S3C2443_UCON_RXERR_IRQEN) - -#define S5PV210_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE | \ - S5PV210_UFCON_TXTRIG4 | \ - S5PV210_UFCON_RXTRIG4) - -#ifndef __ASSEMBLY__ - -/* configuration structure for per-machine configurations for the - * serial port - * - * the pointer is setup by the machine specific initialisation from the - * arch/arm/mach-s3c2410/ directory. -*/ - -struct s3c2410_uartcfg { - unsigned char hwport; /* hardware port number */ - unsigned char unused; - unsigned short flags; - upf_t uart_flags; /* default uart flags */ - unsigned int clk_sel; - - unsigned int has_fracval; - - unsigned long ucon; /* value of ucon for port */ - unsigned long ulcon; /* value of ulcon for port */ - unsigned long ufcon; /* value of ufcon for port */ -}; - -/* s3c24xx_uart_devs - * - * this is exported from the core as we cannot use driver_register(), - * or platform_add_device() before the console_initcall() -*/ - -extern struct platform_device *s3c24xx_uart_devs[4]; - -#endif /* __ASSEMBLY__ */ - -#endif /* __ASM_ARM_REGS_SERIAL_H */ - +#include <linux/serial_s3c.h> diff --git a/arch/arm/plat-samsung/include/plat/usb-phy.h b/arch/arm/plat-samsung/include/plat/usb-phy.h index 959bcdb..ab34dfa 100644 --- a/arch/arm/plat-samsung/include/plat/usb-phy.h +++ b/arch/arm/plat-samsung/include/plat/usb-phy.h @@ -11,10 +11,7 @@ #ifndef __PLAT_SAMSUNG_USB_PHY_H #define __PLAT_SAMSUNG_USB_PHY_H __FILE__ -enum s5p_usb_phy_type { - S5P_USB_PHY_DEVICE, - S5P_USB_PHY_HOST, -}; +#include <linux/usb/samsung_usb_phy.h> extern int s5p_usb_phy_init(struct platform_device *pdev, int type); extern int s5p_usb_phy_exit(struct platform_device *pdev, int type); diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 9b6d19f..73b6e76 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -99,7 +99,16 @@ source "init/Kconfig" source "kernel/Kconfig.freezer" -menu "System Type" +menu "Platform selection" + +config ARCH_VEXPRESS + bool "ARMv8 software model (Versatile Express)" + select ARCH_REQUIRE_GPIOLIB + select COMMON_CLK_VERSATILE + select VEXPRESS_CONFIG + help + This enables support for the ARMv8 software model (Versatile + Express). endmenu diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile index 32ac0ae..68457e9 100644 --- a/arch/arm64/boot/dts/Makefile +++ b/arch/arm64/boot/dts/Makefile @@ -1,3 +1,5 @@ +dtb-$(CONFIG_ARCH_VEXPRESS) += rtsm_ve-aemv8a.dtb foundation-v8.dtb + targets += dtbs targets += $(dtb-y) diff --git a/arch/arm64/boot/dts/foundation-v8.dts b/arch/arm64/boot/dts/foundation-v8.dts new file mode 100644 index 0000000..198682b --- /dev/null +++ b/arch/arm64/boot/dts/foundation-v8.dts @@ -0,0 +1,230 @@ +/* + * ARM Ltd. + * + * ARMv8 Foundation model DTS + */ + +/dts-v1/; + +/ { + model = "Foundation-v8A"; + compatible = "arm,foundation-aarch64", "arm,vexpress"; + interrupt-parent = <&gic>; + #address-cells = <2>; + #size-cells = <2>; + + chosen { }; + + aliases { + serial0 = &v2m_serial0; + serial1 = &v2m_serial1; + serial2 = &v2m_serial2; + serial3 = &v2m_serial3; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu@0 { + device_type = "cpu"; + compatible = "arm,armv8"; + reg = <0x0 0x0>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0x8000fff8>; + }; + cpu@1 { + device_type = "cpu"; + compatible = "arm,armv8"; + reg = <0x0 0x1>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0x8000fff8>; + }; + cpu@2 { + device_type = "cpu"; + compatible = "arm,armv8"; + reg = <0x0 0x2>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0x8000fff8>; + }; + cpu@3 { + device_type = "cpu"; + compatible = "arm,armv8"; + reg = <0x0 0x3>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0x8000fff8>; + }; + }; + + memory@80000000 { + device_type = "memory"; + reg = <0x00000000 0x80000000 0 0x80000000>, + <0x00000008 0x80000000 0 0x80000000>; + }; + + gic: interrupt-controller@2c001000 { + compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic"; + #interrupt-cells = <3>; + #address-cells = <0>; + interrupt-controller; + reg = <0x0 0x2c001000 0 0x1000>, + <0x0 0x2c002000 0 0x1000>, + <0x0 0x2c004000 0 0x2000>, + <0x0 0x2c006000 0 0x2000>; + interrupts = <1 9 0xf04>; + }; + + timer { + compatible = "arm,armv8-timer"; + interrupts = <1 13 0xff01>, + <1 14 0xff01>, + <1 11 0xff01>, + <1 10 0xff01>; + clock-frequency = <100000000>; + }; + + pmu { + compatible = "arm,armv8-pmuv3"; + interrupts = <0 60 4>, + <0 61 4>, + <0 62 4>, + <0 63 4>; + }; + + smb { + compatible = "arm,vexpress,v2m-p1", "simple-bus"; + arm,v2m-memory-map = "rs1"; + #address-cells = <2>; /* SMB chipselect number and offset */ + #size-cells = <1>; + + ranges = <0 0 0 0x08000000 0x04000000>, + <1 0 0 0x14000000 0x04000000>, + <2 0 0 0x18000000 0x04000000>, + <3 0 0 0x1c000000 0x04000000>, + <4 0 0 0x0c000000 0x04000000>, + <5 0 0 0x10000000 0x04000000>; + + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 63>; + interrupt-map = <0 0 0 &gic 0 0 4>, + <0 0 1 &gic 0 1 4>, + <0 0 2 &gic 0 2 4>, + <0 0 3 &gic 0 3 4>, + <0 0 4 &gic 0 4 4>, + <0 0 5 &gic 0 5 4>, + <0 0 6 &gic 0 6 4>, + <0 0 7 &gic 0 7 4>, + <0 0 8 &gic 0 8 4>, + <0 0 9 &gic 0 9 4>, + <0 0 10 &gic 0 10 4>, + <0 0 11 &gic 0 11 4>, + <0 0 12 &gic 0 12 4>, + <0 0 13 &gic 0 13 4>, + <0 0 14 &gic 0 14 4>, + <0 0 15 &gic 0 15 4>, + <0 0 16 &gic 0 16 4>, + <0 0 17 &gic 0 17 4>, + <0 0 18 &gic 0 18 4>, + <0 0 19 &gic 0 19 4>, + <0 0 20 &gic 0 20 4>, + <0 0 21 &gic 0 21 4>, + <0 0 22 &gic 0 22 4>, + <0 0 23 &gic 0 23 4>, + <0 0 24 &gic 0 24 4>, + <0 0 25 &gic 0 25 4>, + <0 0 26 &gic 0 26 4>, + <0 0 27 &gic 0 27 4>, + <0 0 28 &gic 0 28 4>, + <0 0 29 &gic 0 29 4>, + <0 0 30 &gic 0 30 4>, + <0 0 31 &gic 0 31 4>, + <0 0 32 &gic 0 32 4>, + <0 0 33 &gic 0 33 4>, + <0 0 34 &gic 0 34 4>, + <0 0 35 &gic 0 35 4>, + <0 0 36 &gic 0 36 4>, + <0 0 37 &gic 0 37 4>, + <0 0 38 &gic 0 38 4>, + <0 0 39 &gic 0 39 4>, + <0 0 40 &gic 0 40 4>, + <0 0 41 &gic 0 41 4>, + <0 0 42 &gic 0 42 4>; + + ethernet@2,02000000 { + compatible = "smsc,lan91c111"; + reg = <2 0x02000000 0x10000>; + interrupts = <15>; + }; + + v2m_clk24mhz: clk24mhz { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <24000000>; + clock-output-names = "v2m:clk24mhz"; + }; + + v2m_refclk1mhz: refclk1mhz { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <1000000>; + clock-output-names = "v2m:refclk1mhz"; + }; + + v2m_refclk32khz: refclk32khz { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + clock-output-names = "v2m:refclk32khz"; + }; + + iofpga@3,00000000 { + compatible = "arm,amba-bus", "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 3 0 0x200000>; + + v2m_sysreg: sysreg@010000 { + compatible = "arm,vexpress-sysreg"; + reg = <0x010000 0x1000>; + }; + + v2m_serial0: uart@090000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x090000 0x1000>; + interrupts = <5>; + clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>; + clock-names = "uartclk", "apb_pclk"; + }; + + v2m_serial1: uart@0a0000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x0a0000 0x1000>; + interrupts = <6>; + clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>; + clock-names = "uartclk", "apb_pclk"; + }; + + v2m_serial2: uart@0b0000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x0b0000 0x1000>; + interrupts = <7>; + clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>; + clock-names = "uartclk", "apb_pclk"; + }; + + v2m_serial3: uart@0c0000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x0c0000 0x1000>; + interrupts = <8>; + clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>; + clock-names = "uartclk", "apb_pclk"; + }; + + virtio_block@0130000 { + compatible = "virtio,mmio"; + reg = <0x130000 0x1000>; + interrupts = <42>; + }; + }; + }; +}; diff --git a/arch/arm64/boot/dts/rtsm_ve-aemv8a.dts b/arch/arm64/boot/dts/rtsm_ve-aemv8a.dts new file mode 100644 index 0000000..572005e --- /dev/null +++ b/arch/arm64/boot/dts/rtsm_ve-aemv8a.dts @@ -0,0 +1,159 @@ +/* + * ARM Ltd. Fast Models + * + * Architecture Envelope Model (AEM) ARMv8-A + * ARMAEMv8AMPCT + * + * RTSM_VE_AEMv8A.lisa + */ + +/dts-v1/; + +/memreserve/ 0x80000000 0x00010000; + +/ { + model = "RTSM_VE_AEMv8A"; + compatible = "arm,rtsm_ve,aemv8a", "arm,vexpress"; + interrupt-parent = <&gic>; + #address-cells = <2>; + #size-cells = <2>; + + chosen { }; + + aliases { + serial0 = &v2m_serial0; + serial1 = &v2m_serial1; + serial2 = &v2m_serial2; + serial3 = &v2m_serial3; + }; + + cpus { + #address-cells = <2>; + #size-cells = <0>; + + cpu@0 { + device_type = "cpu"; + compatible = "arm,armv8"; + reg = <0x0 0x0>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0x8000fff8>; + }; + cpu@1 { + device_type = "cpu"; + compatible = "arm,armv8"; + reg = <0x0 0x1>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0x8000fff8>; + }; + cpu@2 { + device_type = "cpu"; + compatible = "arm,armv8"; + reg = <0x0 0x2>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0x8000fff8>; + }; + cpu@3 { + device_type = "cpu"; + compatible = "arm,armv8"; + reg = <0x0 0x3>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0x8000fff8>; + }; + }; + + memory@80000000 { + device_type = "memory"; + reg = <0x00000000 0x80000000 0 0x80000000>, + <0x00000008 0x80000000 0 0x80000000>; + }; + + gic: interrupt-controller@2c001000 { + compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic"; + #interrupt-cells = <3>; + #address-cells = <0>; + interrupt-controller; + reg = <0x0 0x2c001000 0 0x1000>, + <0x0 0x2c002000 0 0x1000>, + <0x0 0x2c004000 0 0x2000>, + <0x0 0x2c006000 0 0x2000>; + interrupts = <1 9 0xf04>; + }; + + timer { + compatible = "arm,armv8-timer"; + interrupts = <1 13 0xff01>, + <1 14 0xff01>, + <1 11 0xff01>, + <1 10 0xff01>; + clock-frequency = <100000000>; + }; + + pmu { + compatible = "arm,armv8-pmuv3"; + interrupts = <0 60 4>, + <0 61 4>, + <0 62 4>, + <0 63 4>; + }; + + smb { + compatible = "simple-bus"; + + #address-cells = <2>; + #size-cells = <1>; + ranges = <0 0 0 0x08000000 0x04000000>, + <1 0 0 0x14000000 0x04000000>, + <2 0 0 0x18000000 0x04000000>, + <3 0 0 0x1c000000 0x04000000>, + <4 0 0 0x0c000000 0x04000000>, + <5 0 0 0x10000000 0x04000000>; + + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 63>; + interrupt-map = <0 0 0 &gic 0 0 4>, + <0 0 1 &gic 0 1 4>, + <0 0 2 &gic 0 2 4>, + <0 0 3 &gic 0 3 4>, + <0 0 4 &gic 0 4 4>, + <0 0 5 &gic 0 5 4>, + <0 0 6 &gic 0 6 4>, + <0 0 7 &gic 0 7 4>, + <0 0 8 &gic 0 8 4>, + <0 0 9 &gic 0 9 4>, + <0 0 10 &gic 0 10 4>, + <0 0 11 &gic 0 11 4>, + <0 0 12 &gic 0 12 4>, + <0 0 13 &gic 0 13 4>, + <0 0 14 &gic 0 14 4>, + <0 0 15 &gic 0 15 4>, + <0 0 16 &gic 0 16 4>, + <0 0 17 &gic 0 17 4>, + <0 0 18 &gic 0 18 4>, + <0 0 19 &gic 0 19 4>, + <0 0 20 &gic 0 20 4>, + <0 0 21 &gic 0 21 4>, + <0 0 22 &gic 0 22 4>, + <0 0 23 &gic 0 23 4>, + <0 0 24 &gic 0 24 4>, + <0 0 25 &gic 0 25 4>, + <0 0 26 &gic 0 26 4>, + <0 0 27 &gic 0 27 4>, + <0 0 28 &gic 0 28 4>, + <0 0 29 &gic 0 29 4>, + <0 0 30 &gic 0 30 4>, + <0 0 31 &gic 0 31 4>, + <0 0 32 &gic 0 32 4>, + <0 0 33 &gic 0 33 4>, + <0 0 34 &gic 0 34 4>, + <0 0 35 &gic 0 35 4>, + <0 0 36 &gic 0 36 4>, + <0 0 37 &gic 0 37 4>, + <0 0 38 &gic 0 38 4>, + <0 0 39 &gic 0 39 4>, + <0 0 40 &gic 0 40 4>, + <0 0 41 &gic 0 41 4>, + <0 0 42 &gic 0 42 4>; + + /include/ "rtsm_ve-motherboard.dtsi" + }; +}; diff --git a/arch/arm64/boot/dts/rtsm_ve-motherboard.dtsi b/arch/arm64/boot/dts/rtsm_ve-motherboard.dtsi new file mode 100644 index 0000000..b45e5f3 --- /dev/null +++ b/arch/arm64/boot/dts/rtsm_ve-motherboard.dtsi @@ -0,0 +1,234 @@ +/* + * ARM Ltd. Fast Models + * + * Versatile Express (VE) system model + * Motherboard component + * + * VEMotherBoard.lisa + */ + + motherboard { + arm,v2m-memory-map = "rs1"; + compatible = "arm,vexpress,v2m-p1", "simple-bus"; + #address-cells = <2>; /* SMB chipselect number and offset */ + #size-cells = <1>; + #interrupt-cells = <1>; + ranges; + + flash@0,00000000 { + compatible = "arm,vexpress-flash", "cfi-flash"; + reg = <0 0x00000000 0x04000000>, + <4 0x00000000 0x04000000>; + bank-width = <4>; + }; + + vram@2,00000000 { + compatible = "arm,vexpress-vram"; + reg = <2 0x00000000 0x00800000>; + }; + + ethernet@2,02000000 { + compatible = "smsc,lan91c111"; + reg = <2 0x02000000 0x10000>; + interrupts = <15>; + }; + + v2m_clk24mhz: clk24mhz { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <24000000>; + clock-output-names = "v2m:clk24mhz"; + }; + + v2m_refclk1mhz: refclk1mhz { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <1000000>; + clock-output-names = "v2m:refclk1mhz"; + }; + + v2m_refclk32khz: refclk32khz { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + clock-output-names = "v2m:refclk32khz"; + }; + + iofpga@3,00000000 { + compatible = "arm,amba-bus", "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 3 0 0x200000>; + + v2m_sysreg: sysreg@010000 { + compatible = "arm,vexpress-sysreg"; + reg = <0x010000 0x1000>; + gpio-controller; + #gpio-cells = <2>; + }; + + v2m_sysctl: sysctl@020000 { + compatible = "arm,sp810", "arm,primecell"; + reg = <0x020000 0x1000>; + clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&v2m_clk24mhz>; + clock-names = "refclk", "timclk", "apb_pclk"; + #clock-cells = <1>; + clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3"; + }; + + aaci@040000 { + compatible = "arm,pl041", "arm,primecell"; + reg = <0x040000 0x1000>; + interrupts = <11>; + clocks = <&v2m_clk24mhz>; + clock-names = "apb_pclk"; + }; + + mmci@050000 { + compatible = "arm,pl180", "arm,primecell"; + reg = <0x050000 0x1000>; + interrupts = <9 10>; + cd-gpios = <&v2m_sysreg 0 0>; + wp-gpios = <&v2m_sysreg 1 0>; + max-frequency = <12000000>; + vmmc-supply = <&v2m_fixed_3v3>; + clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>; + clock-names = "mclk", "apb_pclk"; + }; + + kmi@060000 { + compatible = "arm,pl050", "arm,primecell"; + reg = <0x060000 0x1000>; + interrupts = <12>; + clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>; + clock-names = "KMIREFCLK", "apb_pclk"; + }; + + kmi@070000 { + compatible = "arm,pl050", "arm,primecell"; + reg = <0x070000 0x1000>; + interrupts = <13>; + clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>; + clock-names = "KMIREFCLK", "apb_pclk"; + }; + + v2m_serial0: uart@090000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x090000 0x1000>; + interrupts = <5>; + clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>; + clock-names = "uartclk", "apb_pclk"; + }; + + v2m_serial1: uart@0a0000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x0a0000 0x1000>; + interrupts = <6>; + clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>; + clock-names = "uartclk", "apb_pclk"; + }; + + v2m_serial2: uart@0b0000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x0b0000 0x1000>; + interrupts = <7>; + clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>; + clock-names = "uartclk", "apb_pclk"; + }; + + v2m_serial3: uart@0c0000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x0c0000 0x1000>; + interrupts = <8>; + clocks = <&v2m_clk24mhz>, <&v2m_clk24mhz>; + clock-names = "uartclk", "apb_pclk"; + }; + + wdt@0f0000 { + compatible = "arm,sp805", "arm,primecell"; + reg = <0x0f0000 0x1000>; + interrupts = <0>; + clocks = <&v2m_refclk32khz>, <&v2m_clk24mhz>; + clock-names = "wdogclk", "apb_pclk"; + }; + + v2m_timer01: timer@110000 { + compatible = "arm,sp804", "arm,primecell"; + reg = <0x110000 0x1000>; + interrupts = <2>; + clocks = <&v2m_sysctl 0>, <&v2m_sysctl 1>, <&v2m_clk24mhz>; + clock-names = "timclken1", "timclken2", "apb_pclk"; + }; + + v2m_timer23: timer@120000 { + compatible = "arm,sp804", "arm,primecell"; + reg = <0x120000 0x1000>; + interrupts = <3>; + clocks = <&v2m_sysctl 2>, <&v2m_sysctl 3>, <&v2m_clk24mhz>; + clock-names = "timclken1", "timclken2", "apb_pclk"; + }; + + rtc@170000 { + compatible = "arm,pl031", "arm,primecell"; + reg = <0x170000 0x1000>; + interrupts = <4>; + clocks = <&v2m_clk24mhz>; + clock-names = "apb_pclk"; + }; + + clcd@1f0000 { + compatible = "arm,pl111", "arm,primecell"; + reg = <0x1f0000 0x1000>; + interrupts = <14>; + clocks = <&v2m_oscclk1>, <&v2m_clk24mhz>; + clock-names = "clcdclk", "apb_pclk"; + }; + }; + + v2m_fixed_3v3: fixedregulator@0 { + compatible = "regulator-fixed"; + regulator-name = "3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + mcc { + compatible = "arm,vexpress,config-bus", "simple-bus"; + arm,vexpress,config-bridge = <&v2m_sysreg>; + + v2m_oscclk1: osc@1 { + /* CLCD clock */ + compatible = "arm,vexpress-osc"; + arm,vexpress-sysreg,func = <1 1>; + freq-range = <23750000 63500000>; + #clock-cells = <0>; + clock-output-names = "v2m:oscclk1"; + }; + + reset@0 { + compatible = "arm,vexpress-reset"; + arm,vexpress-sysreg,func = <5 0>; + }; + + muxfpga@0 { + compatible = "arm,vexpress-muxfpga"; + arm,vexpress-sysreg,func = <7 0>; + }; + + shutdown@0 { + compatible = "arm,vexpress-shutdown"; + arm,vexpress-sysreg,func = <8 0>; + }; + + reboot@0 { + compatible = "arm,vexpress-reboot"; + arm,vexpress-sysreg,func = <9 0>; + }; + + dvimode@0 { + compatible = "arm,vexpress-dvimode"; + arm,vexpress-sysreg,func = <11 0>; + }; + }; + }; diff --git a/arch/arm64/boot/dts/skeleton.dtsi b/arch/arm64/boot/dts/skeleton.dtsi new file mode 100644 index 0000000..38ead82 --- /dev/null +++ b/arch/arm64/boot/dts/skeleton.dtsi @@ -0,0 +1,13 @@ +/* + * Skeleton device tree; the bare minimum needed to boot; just include and + * add a compatible value. The bootloader will typically populate the memory + * node. + */ + +/ { + #address-cells = <2>; + #size-cells = <1>; + chosen { }; + aliases { }; + memory { device_type = "memory"; reg = <0 0 0>; }; +}; diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 09bef29..8d9696ad 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -23,6 +23,7 @@ CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_IOSCHED_DEADLINE is not set +CONFIG_ARCH_VEXPRESS=y CONFIG_SMP=y CONFIG_PREEMPT_VOLUNTARY=y CONFIG_CMDLINE="console=ttyAMA0" @@ -47,11 +48,14 @@ CONFIG_BLK_DEV_SD=y # CONFIG_SCSI_LOWLEVEL is not set CONFIG_NETDEVICES=y CONFIG_MII=y +CONFIG_SMC91X=y # CONFIG_WLAN is not set CONFIG_INPUT_EVDEV=y # CONFIG_SERIO_I8042 is not set # CONFIG_SERIO_SERPORT is not set CONFIG_LEGACY_PTY_COUNT=16 +CONFIG_SERIAL_AMBA_PL011=y +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y # CONFIG_HW_RANDOM is not set # CONFIG_HWMON is not set CONFIG_FB=y diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild index e5fe4f9..79a642d 100644 --- a/arch/arm64/include/asm/Kbuild +++ b/arch/arm64/include/asm/Kbuild @@ -39,7 +39,6 @@ generic-y += shmbuf.h generic-y += sizes.h generic-y += socket.h generic-y += sockios.h -generic-y += string.h generic-y += switch_to.h generic-y += swab.h generic-y += termbits.h @@ -49,4 +48,5 @@ generic-y += trace_clock.h generic-y += types.h generic-y += unaligned.h generic-y += user.h +generic-y += vga.h generic-y += xor.h diff --git a/arch/arm64/include/asm/bitops.h b/arch/arm64/include/asm/bitops.h index 5e69307..aa5b59d 100644 --- a/arch/arm64/include/asm/bitops.h +++ b/arch/arm64/include/asm/bitops.h @@ -32,6 +32,16 @@ #error only <linux/bitops.h> can be included directly #endif +/* + * Little endian assembly atomic bitops. + */ +extern void set_bit(int nr, volatile unsigned long *p); +extern void clear_bit(int nr, volatile unsigned long *p); +extern void change_bit(int nr, volatile unsigned long *p); +extern int test_and_set_bit(int nr, volatile unsigned long *p); +extern int test_and_clear_bit(int nr, volatile unsigned long *p); +extern int test_and_change_bit(int nr, volatile unsigned long *p); + #include <asm-generic/bitops/builtin-__ffs.h> #include <asm-generic/bitops/builtin-ffs.h> #include <asm-generic/bitops/builtin-__fls.h> @@ -45,9 +55,13 @@ #include <asm-generic/bitops/hweight.h> #include <asm-generic/bitops/lock.h> -#include <asm-generic/bitops/atomic.h> #include <asm-generic/bitops/non-atomic.h> #include <asm-generic/bitops/le.h> -#include <asm-generic/bitops/ext2-atomic.h> + +/* + * Ext2 is defined to use little-endian byte ordering. + */ +#define ext2_set_bit_atomic(lock, nr, p) test_and_set_bit_le(nr, p) +#define ext2_clear_bit_atomic(lock, nr, p) test_and_clear_bit_le(nr, p) #endif /* __ASM_BITOPS_H */ diff --git a/arch/arm64/include/asm/cmpxchg.h b/arch/arm64/include/asm/cmpxchg.h index 968b5cb..8a8ce0e 100644 --- a/arch/arm64/include/asm/cmpxchg.h +++ b/arch/arm64/include/asm/cmpxchg.h @@ -170,4 +170,7 @@ static inline unsigned long __cmpxchg_mb(volatile void *ptr, unsigned long old, (unsigned long)(n), \ sizeof(*(ptr)))) +#define cmpxchg64(ptr,o,n) cmpxchg((ptr),(o),(n)) +#define cmpxchg64_local(ptr,o,n) cmpxchg_local((ptr),(o),(n)) + #endif /* __ASM_CMPXCHG_H */ diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h index 618b450..899af80 100644 --- a/arch/arm64/include/asm/compat.h +++ b/arch/arm64/include/asm/compat.h @@ -35,14 +35,16 @@ typedef s32 compat_clock_t; typedef s32 compat_pid_t; typedef u32 __compat_uid_t; typedef u32 __compat_gid_t; +typedef u16 __compat_uid16_t; +typedef u16 __compat_gid16_t; typedef u32 __compat_uid32_t; typedef u32 __compat_gid32_t; -typedef u32 compat_mode_t; +typedef u16 compat_mode_t; typedef u32 compat_ino_t; typedef u32 compat_dev_t; typedef s32 compat_off_t; typedef s64 compat_loff_t; -typedef s16 compat_nlink_t; +typedef s32 compat_nlink_t; typedef u16 compat_ipc_pid_t; typedef s32 compat_daddr_t; typedef u32 compat_caddr_t; @@ -50,9 +52,11 @@ typedef __kernel_fsid_t compat_fsid_t; typedef s32 compat_key_t; typedef s32 compat_timer_t; +typedef s16 compat_short_t; typedef s32 compat_int_t; typedef s32 compat_long_t; typedef s64 compat_s64; +typedef u16 compat_ushort_t; typedef u32 compat_uint_t; typedef u32 compat_ulong_t; typedef u64 compat_u64; @@ -72,20 +76,20 @@ struct compat_stat { compat_dev_t st_dev; compat_ino_t st_ino; compat_mode_t st_mode; - compat_nlink_t st_nlink; - __compat_uid32_t st_uid; - __compat_gid32_t st_gid; + compat_ushort_t st_nlink; + __compat_uid16_t st_uid; + __compat_gid16_t st_gid; compat_dev_t st_rdev; compat_off_t st_size; compat_off_t st_blksize; compat_off_t st_blocks; compat_time_t st_atime; - u32 st_atime_nsec; + compat_ulong_t st_atime_nsec; compat_time_t st_mtime; - u32 st_mtime_nsec; + compat_ulong_t st_mtime_nsec; compat_time_t st_ctime; - u32 st_ctime_nsec; - u32 __unused4[2]; + compat_ulong_t st_ctime_nsec; + compat_ulong_t __unused4[2]; }; struct compat_flock { diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h index ef54125..cf27494 100644 --- a/arch/arm64/include/asm/cputype.h +++ b/arch/arm64/include/asm/cputype.h @@ -17,6 +17,7 @@ #define __ASM_CPUTYPE_H #define ID_MIDR_EL1 "midr_el1" +#define ID_MPIDR_EL1 "mpidr_el1" #define ID_CTR_EL0 "ctr_el0" #define ID_AA64PFR0_EL1 "id_aa64pfr0_el1" @@ -25,12 +26,24 @@ #define ID_AA64ISAR0_EL1 "id_aa64isar0_el1" #define ID_AA64MMFR0_EL1 "id_aa64mmfr0_el1" +#define INVALID_HWID ULONG_MAX + +#define MPIDR_HWID_BITMASK 0xff00ffffff + #define read_cpuid(reg) ({ \ u64 __val; \ asm("mrs %0, " reg : "=r" (__val)); \ __val; \ }) +#define ARM_CPU_IMP_ARM 0x41 + +#define ARM_CPU_PART_AEM_V8 0xD0F0 +#define ARM_CPU_PART_FOUNDATION 0xD000 +#define ARM_CPU_PART_CORTEX_A57 0xD070 + +#ifndef __ASSEMBLY__ + /* * The CPU ID never changes at run time, so we might as well tell the * compiler that it's constant. Use this function to read the CPU ID @@ -41,9 +54,26 @@ static inline u32 __attribute_const__ read_cpuid_id(void) return read_cpuid(ID_MIDR_EL1); } +static inline u64 __attribute_const__ read_cpuid_mpidr(void) +{ + return read_cpuid(ID_MPIDR_EL1); +} + +static inline unsigned int __attribute_const__ read_cpuid_implementor(void) +{ + return (read_cpuid_id() & 0xFF000000) >> 24; +} + +static inline unsigned int __attribute_const__ read_cpuid_part_number(void) +{ + return (read_cpuid_id() & 0xFFF0); +} + static inline u32 __attribute_const__ read_cpuid_cachetype(void) { return read_cpuid(ID_CTR_EL0); } +#endif /* __ASSEMBLY__ */ + #endif diff --git a/arch/arm64/include/asm/esr.h b/arch/arm64/include/asm/esr.h new file mode 100644 index 0000000..7883412 --- /dev/null +++ b/arch/arm64/include/asm/esr.h @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2013 - ARM Ltd + * Author: Marc Zyngier <marc.zyngier@arm.com> + * + * 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. + * + * 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 <http://www.gnu.org/licenses/>. + */ + +#ifndef __ASM_ESR_H +#define __ASM_ESR_H + +#define ESR_EL1_EC_SHIFT (26) +#define ESR_EL1_IL (1U << 25) + +#define ESR_EL1_EC_UNKNOWN (0x00) +#define ESR_EL1_EC_WFI (0x01) +#define ESR_EL1_EC_CP15_32 (0x03) +#define ESR_EL1_EC_CP15_64 (0x04) +#define ESR_EL1_EC_CP14_MR (0x05) +#define ESR_EL1_EC_CP14_LS (0x06) +#define ESR_EL1_EC_FP_ASIMD (0x07) +#define ESR_EL1_EC_CP10_ID (0x08) +#define ESR_EL1_EC_CP14_64 (0x0C) +#define ESR_EL1_EC_ILL_ISS (0x0E) +#define ESR_EL1_EC_SVC32 (0x11) +#define ESR_EL1_EC_SVC64 (0x15) +#define ESR_EL1_EC_SYS64 (0x18) +#define ESR_EL1_EC_IABT_EL0 (0x20) +#define ESR_EL1_EC_IABT_EL1 (0x21) +#define ESR_EL1_EC_PC_ALIGN (0x22) +#define ESR_EL1_EC_DABT_EL0 (0x24) +#define ESR_EL1_EC_DABT_EL1 (0x25) +#define ESR_EL1_EC_SP_ALIGN (0x26) +#define ESR_EL1_EC_FP_EXC32 (0x28) +#define ESR_EL1_EC_FP_EXC64 (0x2C) +#define ESR_EL1_EC_SERRROR (0x2F) +#define ESR_EL1_EC_BREAKPT_EL0 (0x30) +#define ESR_EL1_EC_BREAKPT_EL1 (0x31) +#define ESR_EL1_EC_SOFTSTP_EL0 (0x32) +#define ESR_EL1_EC_SOFTSTP_EL1 (0x33) +#define ESR_EL1_EC_WATCHPT_EL0 (0x34) +#define ESR_EL1_EC_WATCHPT_EL1 (0x35) +#define ESR_EL1_EC_BKPT32 (0x38) +#define ESR_EL1_EC_BRK64 (0x3C) + +#endif /* __ASM_ESR_H */ diff --git a/arch/arm64/include/asm/exception.h b/arch/arm64/include/asm/exception.h index ac63519..0303705 100644 --- a/arch/arm64/include/asm/exception.h +++ b/arch/arm64/include/asm/exception.h @@ -19,5 +19,6 @@ #define __ASM_EXCEPTION_H #define __exception __attribute__((section(".exception.text"))) +#define __exception_irq_entry __exception #endif /* __ASM_EXCEPTION_H */ diff --git a/arch/arm64/include/asm/hardirq.h b/arch/arm64/include/asm/hardirq.h index 5075463..990c051 100644 --- a/arch/arm64/include/asm/hardirq.h +++ b/arch/arm64/include/asm/hardirq.h @@ -49,4 +49,9 @@ static inline void ack_bad_irq(unsigned int irq) extern void handle_IRQ(unsigned int, struct pt_regs *); +/* + * No arch-specific IRQ flags. + */ +#define set_irq_flags(irq, flags) + #endif /* __ASM_HARDIRQ_H */ diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index 57f12c9..2e12258 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -92,10 +92,12 @@ static inline u64 __raw_readq(const volatile void __iomem *addr) #define readb_relaxed(c) ({ u8 __v = __raw_readb(c); __v; }) #define readw_relaxed(c) ({ u16 __v = le16_to_cpu((__force __le16)__raw_readw(c)); __v; }) #define readl_relaxed(c) ({ u32 __v = le32_to_cpu((__force __le32)__raw_readl(c)); __v; }) +#define readq_relaxed(c) ({ u64 __v = le64_to_cpu((__force __le64)__raw_readq(c)); __v; }) #define writeb_relaxed(v,c) ((void)__raw_writeb((v),(c))) #define writew_relaxed(v,c) ((void)__raw_writew((__force u16)cpu_to_le16(v),(c))) #define writel_relaxed(v,c) ((void)__raw_writel((__force u32)cpu_to_le32(v),(c))) +#define writeq_relaxed(v,c) ((void)__raw_writeq((__force u64)cpu_to_le64(v),(c))) /* * I/O memory access primitives. Reads are ordered relative to any @@ -105,10 +107,12 @@ static inline u64 __raw_readq(const volatile void __iomem *addr) #define readb(c) ({ u8 __v = readb_relaxed(c); __iormb(); __v; }) #define readw(c) ({ u16 __v = readw_relaxed(c); __iormb(); __v; }) #define readl(c) ({ u32 __v = readl_relaxed(c); __iormb(); __v; }) +#define readq(c) ({ u64 __v = readq_relaxed(c); __iormb(); __v; }) #define writeb(v,c) ({ __iowmb(); writeb_relaxed((v),(c)); }) #define writew(v,c) ({ __iowmb(); writew_relaxed((v),(c)); }) #define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c)); }) +#define writeq(v,c) ({ __iowmb(); writeq_relaxed((v),(c)); }) /* * I/O port access primitives. diff --git a/arch/arm64/include/asm/irq.h b/arch/arm64/include/asm/irq.h index a4e1cad..0332fc0 100644 --- a/arch/arm64/include/asm/irq.h +++ b/arch/arm64/include/asm/irq.h @@ -4,5 +4,6 @@ #include <asm-generic/irq.h> extern void (*handle_arch_irq)(struct pt_regs *); +extern void set_handle_irq(void (*handle_irq)(struct pt_regs *)); #endif diff --git a/arch/arm64/lib/bitops.c b/arch/arm64/include/asm/smp_plat.h index aa4965e..ed43a0d 100644 --- a/arch/arm64/lib/bitops.c +++ b/arch/arm64/include/asm/smp_plat.h @@ -1,7 +1,9 @@ /* - * Copyright (C) 2012 ARM Limited + * Definitions specific to SMP platforms. * - * This program is free software; you can redistribute it and/or modify + * Copyright (C) 2013 ARM Ltd. + * + * 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. * @@ -14,12 +16,15 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <linux/kernel.h> -#include <linux/spinlock.h> -#include <linux/atomic.h> +#ifndef __ASM_SMP_PLAT_H +#define __ASM_SMP_PLAT_H + +#include <asm/types.h> + +/* + * Logical CPU mapping. + */ +extern u64 __cpu_logical_map[NR_CPUS]; +#define cpu_logical_map(cpu) __cpu_logical_map[cpu] -#ifdef CONFIG_SMP -arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned = { - [0 ... (ATOMIC_HASH_SIZE-1)] = __ARCH_SPIN_LOCK_UNLOCKED -}; -#endif +#endif /* __ASM_SMP_PLAT_H */ diff --git a/arch/arm64/include/asm/string.h b/arch/arm64/include/asm/string.h new file mode 100644 index 0000000..3ee8b30 --- /dev/null +++ b/arch/arm64/include/asm/string.h @@ -0,0 +1,37 @@ +/* + * Copyright (C) 2013 ARM Ltd. + * + * 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. + * + * 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 <http://www.gnu.org/licenses/>. + */ +#ifndef __ASM_STRING_H +#define __ASM_STRING_H + +#define __HAVE_ARCH_STRRCHR +extern char *strrchr(const char *, int c); + +#define __HAVE_ARCH_STRCHR +extern char *strchr(const char *, int c); + +#define __HAVE_ARCH_MEMCPY +extern void *memcpy(void *, const void *, __kernel_size_t); + +#define __HAVE_ARCH_MEMMOVE +extern void *memmove(void *, const void *, __kernel_size_t); + +#define __HAVE_ARCH_MEMCHR +extern void *memchr(const void *, int, __kernel_size_t); + +#define __HAVE_ARCH_MEMSET +extern void *memset(void *, int, __kernel_size_t); + +#endif diff --git a/arch/arm64/kernel/arm64ksyms.c b/arch/arm64/kernel/arm64ksyms.c index aa3e948..7df1aad 100644 --- a/arch/arm64/kernel/arm64ksyms.c +++ b/arch/arm64/kernel/arm64ksyms.c @@ -39,10 +39,21 @@ EXPORT_SYMBOL(__copy_from_user); EXPORT_SYMBOL(__copy_to_user); EXPORT_SYMBOL(__clear_user); - /* bitops */ -#ifdef CONFIG_SMP -EXPORT_SYMBOL(__atomic_hash); -#endif - /* physical memory */ EXPORT_SYMBOL(memstart_addr); + + /* string / mem functions */ +EXPORT_SYMBOL(strchr); +EXPORT_SYMBOL(strrchr); +EXPORT_SYMBOL(memset); +EXPORT_SYMBOL(memcpy); +EXPORT_SYMBOL(memmove); +EXPORT_SYMBOL(memchr); + + /* atomic bitops */ +EXPORT_SYMBOL(set_bit); +EXPORT_SYMBOL(test_and_set_bit); +EXPORT_SYMBOL(clear_bit); +EXPORT_SYMBOL(test_and_clear_bit); +EXPORT_SYMBOL(change_bit); +EXPORT_SYMBOL(test_and_change_bit); diff --git a/arch/arm64/kernel/early_printk.c b/arch/arm64/kernel/early_printk.c index 7e320a2..ac974f4 100644 --- a/arch/arm64/kernel/early_printk.c +++ b/arch/arm64/kernel/early_printk.c @@ -24,6 +24,7 @@ #include <linux/io.h> #include <linux/amba/serial.h> +#include <linux/serial_reg.h> static void __iomem *early_base; static void (*printch)(char ch); @@ -40,6 +41,37 @@ static void pl011_printch(char ch) ; } +/* + * Semihosting-based debug console + */ +static void smh_printch(char ch) +{ + asm volatile("mov x1, %0\n" + "mov x0, #3\n" + "hlt 0xf000\n" + : : "r" (&ch) : "x0", "x1", "memory"); +} + +/* + * 8250/16550 (8-bit aligned registers) single character TX. + */ +static void uart8250_8bit_printch(char ch) +{ + while (!(readb_relaxed(early_base + UART_LSR) & UART_LSR_THRE)) + ; + writeb_relaxed(ch, early_base + UART_TX); +} + +/* + * 8250/16550 (32-bit aligned registers) single character TX. + */ +static void uart8250_32bit_printch(char ch) +{ + while (!(readl_relaxed(early_base + (UART_LSR << 2)) & UART_LSR_THRE)) + ; + writel_relaxed(ch, early_base + (UART_TX << 2)); +} + struct earlycon_match { const char *name; void (*printch)(char ch); @@ -47,6 +79,9 @@ struct earlycon_match { static const struct earlycon_match earlycon_match[] __initconst = { { .name = "pl011", .printch = pl011_printch, }, + { .name = "smh", .printch = smh_printch, }, + { .name = "uart8250-8bit", .printch = uart8250_8bit_printch, }, + { .name = "uart8250-32bit", .printch = uart8250_32bit_printch, }, {} }; diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index 514d609..c7e0470 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -24,6 +24,7 @@ #include <asm/assembler.h> #include <asm/asm-offsets.h> #include <asm/errno.h> +#include <asm/esr.h> #include <asm/thread_info.h> #include <asm/unistd.h> #include <asm/unistd32.h> @@ -239,18 +240,18 @@ ENDPROC(el1_error_invalid) el1_sync: kernel_entry 1 mrs x1, esr_el1 // read the syndrome register - lsr x24, x1, #26 // exception class - cmp x24, #0x25 // data abort in EL1 + lsr x24, x1, #ESR_EL1_EC_SHIFT // exception class + cmp x24, #ESR_EL1_EC_DABT_EL1 // data abort in EL1 b.eq el1_da - cmp x24, #0x18 // configurable trap + cmp x24, #ESR_EL1_EC_SYS64 // configurable trap b.eq el1_undef - cmp x24, #0x26 // stack alignment exception + cmp x24, #ESR_EL1_EC_SP_ALIGN // stack alignment exception b.eq el1_sp_pc - cmp x24, #0x22 // pc alignment exception + cmp x24, #ESR_EL1_EC_PC_ALIGN // pc alignment exception b.eq el1_sp_pc - cmp x24, #0x00 // unknown exception in EL1 + cmp x24, #ESR_EL1_EC_UNKNOWN // unknown exception in EL1 b.eq el1_undef - cmp x24, #0x30 // debug exception in EL1 + cmp x24, #ESR_EL1_EC_BREAKPT_EL1 // debug exception in EL1 b.ge el1_dbg b el1_inv el1_da: @@ -346,27 +347,27 @@ el1_preempt: el0_sync: kernel_entry 0 mrs x25, esr_el1 // read the syndrome register - lsr x24, x25, #26 // exception class - cmp x24, #0x15 // SVC in 64-bit state + lsr x24, x25, #ESR_EL1_EC_SHIFT // exception class + cmp x24, #ESR_EL1_EC_SVC64 // SVC in 64-bit state b.eq el0_svc adr lr, ret_from_exception - cmp x24, #0x24 // data abort in EL0 + cmp x24, #ESR_EL1_EC_DABT_EL0 // data abort in EL0 b.eq el0_da - cmp x24, #0x20 // instruction abort in EL0 + cmp x24, #ESR_EL1_EC_IABT_EL0 // instruction abort in EL0 b.eq el0_ia - cmp x24, #0x07 // FP/ASIMD access + cmp x24, #ESR_EL1_EC_FP_ASIMD // FP/ASIMD access b.eq el0_fpsimd_acc - cmp x24, #0x2c // FP/ASIMD exception + cmp x24, #ESR_EL1_EC_FP_EXC64 // FP/ASIMD exception b.eq el0_fpsimd_exc - cmp x24, #0x18 // configurable trap + cmp x24, #ESR_EL1_EC_SYS64 // configurable trap b.eq el0_undef - cmp x24, #0x26 // stack alignment exception + cmp x24, #ESR_EL1_EC_SP_ALIGN // stack alignment exception b.eq el0_sp_pc - cmp x24, #0x22 // pc alignment exception + cmp x24, #ESR_EL1_EC_PC_ALIGN // pc alignment exception b.eq el0_sp_pc - cmp x24, #0x00 // unknown exception in EL0 + cmp x24, #ESR_EL1_EC_UNKNOWN // unknown exception in EL0 b.eq el0_undef - cmp x24, #0x30 // debug exception in EL0 + cmp x24, #ESR_EL1_EC_BREAKPT_EL0 // debug exception in EL0 b.ge el0_dbg b el0_inv @@ -375,21 +376,21 @@ el0_sync: el0_sync_compat: kernel_entry 0, 32 mrs x25, esr_el1 // read the syndrome register - lsr x24, x25, #26 // exception class - cmp x24, #0x11 // SVC in 32-bit state + lsr x24, x25, #ESR_EL1_EC_SHIFT // exception class + cmp x24, #ESR_EL1_EC_SVC32 // SVC in 32-bit state b.eq el0_svc_compat adr lr, ret_from_exception - cmp x24, #0x24 // data abort in EL0 + cmp x24, #ESR_EL1_EC_DABT_EL0 // data abort in EL0 b.eq el0_da - cmp x24, #0x20 // instruction abort in EL0 + cmp x24, #ESR_EL1_EC_IABT_EL0 // instruction abort in EL0 b.eq el0_ia - cmp x24, #0x07 // FP/ASIMD access + cmp x24, #ESR_EL1_EC_FP_ASIMD // FP/ASIMD access b.eq el0_fpsimd_acc - cmp x24, #0x28 // FP/ASIMD exception + cmp x24, #ESR_EL1_EC_FP_EXC32 // FP/ASIMD exception b.eq el0_fpsimd_exc - cmp x24, #0x00 // unknown exception in EL0 + cmp x24, #ESR_EL1_EC_UNKNOWN // unknown exception in EL0 b.eq el0_undef - cmp x24, #0x30 // debug exception in EL0 + cmp x24, #ESR_EL1_EC_BREAKPT_EL0 // debug exception in EL0 b.ge el0_dbg b el0_inv el0_svc_compat: diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index 0a0a497..53dcae4 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -26,6 +26,7 @@ #include <asm/assembler.h> #include <asm/ptrace.h> #include <asm/asm-offsets.h> +#include <asm/cputype.h> #include <asm/memory.h> #include <asm/thread_info.h> #include <asm/pgtable-hwdef.h> @@ -229,7 +230,8 @@ ENTRY(secondary_holding_pen) bl __calc_phys_offset // x24=phys offset bl el2_setup // Drop to EL1 mrs x0, mpidr_el1 - and x0, x0, #15 // CPU number + ldr x1, =MPIDR_HWID_BITMASK + and x0, x0, x1 adr x1, 1b ldp x2, x3, [x1] sub x1, x1, x2 diff --git a/arch/arm64/kernel/irq.c b/arch/arm64/kernel/irq.c index 0373c66..ecb3354 100644 --- a/arch/arm64/kernel/irq.c +++ b/arch/arm64/kernel/irq.c @@ -25,7 +25,7 @@ #include <linux/irq.h> #include <linux/smp.h> #include <linux/init.h> -#include <linux/of_irq.h> +#include <linux/irqchip.h> #include <linux/seq_file.h> #include <linux/ratelimit.h> @@ -67,18 +67,17 @@ void handle_IRQ(unsigned int irq, struct pt_regs *regs) set_irq_regs(old_regs); } -/* - * Interrupt controllers supported by the kernel. - */ -static const struct of_device_id intctrl_of_match[] __initconst = { - /* IRQ controllers { .compatible, .data } info to go here */ - {} -}; +void __init set_handle_irq(void (*handle_irq)(struct pt_regs *)) +{ + if (handle_arch_irq) + return; + + handle_arch_irq = handle_irq; +} void __init init_IRQ(void) { - of_irq_init(intctrl_of_match); - + irqchip_init(); if (!handle_arch_irq) panic("No interrupt controller found."); } diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 0337cdb..f491972 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -84,11 +84,15 @@ EXPORT_SYMBOL_GPL(pm_power_off); void (*pm_restart)(const char *cmd); EXPORT_SYMBOL_GPL(pm_restart); +void arch_cpu_idle_prepare(void) +{ + local_fiq_enable(); +} /* * This is our default idle handler. */ -static void default_idle(void) +void arch_cpu_idle(void) { /* * This should do all the clock switching and wait for interrupt @@ -98,43 +102,6 @@ static void default_idle(void) local_irq_enable(); } -/* - * The idle thread. - * We always respect 'hlt_counter' to prevent low power idle. - */ -void cpu_idle(void) -{ - local_fiq_enable(); - - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - while (!need_resched()) { - /* - * We need to disable interrupts here to ensure - * we don't miss a wakeup call. - */ - local_irq_disable(); - if (!need_resched()) { - stop_critical_timings(); - default_idle(); - start_critical_timings(); - /* - * default_idle functions should always return - * with IRQs enabled. - */ - WARN_ON(irqs_disabled()); - } else { - local_irq_enable(); - } - } - rcu_idle_exit(); - tick_nohz_idle_exit(); - schedule_preempt_disabled(); - } -} - void machine_shutdown(void) { #ifdef CONFIG_SMP @@ -178,11 +145,7 @@ void __show_regs(struct pt_regs *regs) { int i; - printk("CPU: %d %s (%s %.*s)\n", - raw_smp_processor_id(), print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); + show_regs_print_info(KERN_DEFAULT); print_symbol("PC is at %s\n", instruction_pointer(regs)); print_symbol("LR is at %s\n", regs->regs[30]); printk("pc : [<%016llx>] lr : [<%016llx>] pstate: %08llx\n", @@ -199,7 +162,6 @@ void __show_regs(struct pt_regs *regs) void show_regs(struct pt_regs * regs) { printk("\n"); - printk("Pid: %d, comm: %20s\n", task_pid_nr(current), current->comm); __show_regs(regs); } @@ -311,11 +273,17 @@ struct task_struct *__switch_to(struct task_struct *prev, fpsimd_thread_switch(next); tls_thread_switch(next); hw_breakpoint_thread_switch(next); + contextidr_thread_switch(next); + + /* + * Complete any pending TLB or cache maintenance on this CPU in case + * the thread migrates to a different CPU. + */ + dsb(); /* the actual thread switch */ last = cpu_switch_to(prev, next); - contextidr_thread_switch(next); return last; } diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 113db86..6a9a532 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -32,6 +32,7 @@ #include <linux/kexec.h> #include <linux/crash_dump.h> #include <linux/root_dev.h> +#include <linux/clk-provider.h> #include <linux/cpu.h> #include <linux/interrupt.h> #include <linux/smp.h> @@ -46,6 +47,7 @@ #include <asm/cputable.h> #include <asm/sections.h> #include <asm/setup.h> +#include <asm/smp_plat.h> #include <asm/cacheflush.h> #include <asm/tlbflush.h> #include <asm/traps.h> @@ -240,6 +242,8 @@ static void __init request_standard_resources(void) } } +u64 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID }; + void __init setup_arch(char **cmdline_p) { setup_processor(); @@ -264,6 +268,7 @@ void __init setup_arch(char **cmdline_p) psci_init(); + cpu_logical_map(0) = read_cpuid_mpidr() & MPIDR_HWID_BITMASK; #ifdef CONFIG_SMP smp_init_cpus(); #endif @@ -277,6 +282,13 @@ void __init setup_arch(char **cmdline_p) #endif } +static int __init arm64_of_clk_init(void) +{ + of_clk_init(NULL); + return 0; +} +arch_initcall(arm64_of_clk_init); + static DEFINE_PER_CPU(struct cpu, cpu_data); static int __init topology_init(void) diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index bdd3459..5d54e37 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -43,6 +43,7 @@ #include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/processor.h> +#include <asm/smp_plat.h> #include <asm/sections.h> #include <asm/tlbflush.h> #include <asm/ptrace.h> @@ -53,7 +54,7 @@ * where to place its SVC stack */ struct secondary_data secondary_data; -volatile unsigned long secondary_holding_pen_release = -1; +volatile unsigned long secondary_holding_pen_release = INVALID_HWID; enum ipi_msg_type { IPI_RESCHEDULE, @@ -70,7 +71,7 @@ static DEFINE_RAW_SPINLOCK(boot_lock); * in coherency or not. This is necessary for the hotplug code to work * reliably. */ -static void __cpuinit write_pen_release(int val) +static void __cpuinit write_pen_release(u64 val) { void *start = (void *)&secondary_holding_pen_release; unsigned long size = sizeof(secondary_holding_pen_release); @@ -96,7 +97,7 @@ static int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) /* * Update the pen release flag. */ - write_pen_release(cpu); + write_pen_release(cpu_logical_map(cpu)); /* * Send an event, causing the secondaries to read pen_release. @@ -105,7 +106,7 @@ static int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) timeout = jiffies + (1 * HZ); while (time_before(jiffies, timeout)) { - if (secondary_holding_pen_release == -1UL) + if (secondary_holding_pen_release == INVALID_HWID) break; udelay(10); } @@ -116,7 +117,7 @@ static int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) */ raw_spin_unlock(&boot_lock); - return secondary_holding_pen_release != -1 ? -ENOSYS : 0; + return secondary_holding_pen_release != INVALID_HWID ? -ENOSYS : 0; } static DECLARE_COMPLETION(cpu_running); @@ -190,7 +191,7 @@ asmlinkage void __cpuinit secondary_start_kernel(void) * Let the primary processor know we're out of the * pen, then head off into the C entry point */ - write_pen_release(-1); + write_pen_release(INVALID_HWID); /* * Synchronise with the boot thread. @@ -216,7 +217,7 @@ asmlinkage void __cpuinit secondary_start_kernel(void) /* * OK, it's off to the idle thread for us */ - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } void __init smp_cpus_done(unsigned int max_cpus) @@ -244,11 +245,11 @@ static const struct smp_enable_ops *smp_enable_ops[NR_CPUS]; static const struct smp_enable_ops * __init smp_get_enable_ops(const char *name) { - const struct smp_enable_ops *ops = enable_ops[0]; + const struct smp_enable_ops **ops = enable_ops; - while (ops) { - if (!strcmp(name, ops->name)) - return ops; + while (*ops) { + if (!strcmp(name, (*ops)->name)) + return *ops; ops++; } @@ -257,15 +258,80 @@ static const struct smp_enable_ops * __init smp_get_enable_ops(const char *name) } /* - * Enumerate the possible CPU set from the device tree. + * Enumerate the possible CPU set from the device tree and build the + * cpu logical map array containing MPIDR values related to logical + * cpus. Assumes that cpu_logical_map(0) has already been initialized. */ void __init smp_init_cpus(void) { const char *enable_method; struct device_node *dn = NULL; - int cpu = 0; + int i, cpu = 1; + bool bootcpu_valid = false; while ((dn = of_find_node_by_type(dn, "cpu"))) { + const u32 *cell; + u64 hwid; + + /* + * A cpu node with missing "reg" property is + * considered invalid to build a cpu_logical_map + * entry. + */ + cell = of_get_property(dn, "reg", NULL); + if (!cell) { + pr_err("%s: missing reg property\n", dn->full_name); + goto next; + } + hwid = of_read_number(cell, of_n_addr_cells(dn)); + + /* + * Non affinity bits must be set to 0 in the DT + */ + if (hwid & ~MPIDR_HWID_BITMASK) { + pr_err("%s: invalid reg property\n", dn->full_name); + goto next; + } + + /* + * Duplicate MPIDRs are a recipe for disaster. Scan + * all initialized entries and check for + * duplicates. If any is found just ignore the cpu. + * cpu_logical_map was initialized to INVALID_HWID to + * avoid matching valid MPIDR values. + */ + for (i = 1; (i < cpu) && (i < NR_CPUS); i++) { + if (cpu_logical_map(i) == hwid) { + pr_err("%s: duplicate cpu reg properties in the DT\n", + dn->full_name); + goto next; + } + } + + /* + * The numbering scheme requires that the boot CPU + * must be assigned logical id 0. Record it so that + * the logical map built from DT is validated and can + * be used. + */ + if (hwid == cpu_logical_map(0)) { + if (bootcpu_valid) { + pr_err("%s: duplicate boot cpu reg property in DT\n", + dn->full_name); + goto next; + } + + bootcpu_valid = true; + + /* + * cpu_logical_map has already been + * initialized and the boot cpu doesn't need + * the enable-method so continue without + * incrementing cpu. + */ + continue; + } + if (cpu >= NR_CPUS) goto next; @@ -274,22 +340,24 @@ void __init smp_init_cpus(void) */ enable_method = of_get_property(dn, "enable-method", NULL); if (!enable_method) { - pr_err("CPU %d: missing enable-method property\n", cpu); + pr_err("%s: missing enable-method property\n", + dn->full_name); goto next; } smp_enable_ops[cpu] = smp_get_enable_ops(enable_method); if (!smp_enable_ops[cpu]) { - pr_err("CPU %d: invalid enable-method property: %s\n", - cpu, enable_method); + pr_err("%s: invalid enable-method property: %s\n", + dn->full_name, enable_method); goto next; } if (smp_enable_ops[cpu]->init_cpu(dn, cpu)) goto next; - set_cpu_possible(cpu, true); + pr_debug("cpu logical map 0x%llx\n", hwid); + cpu_logical_map(cpu) = hwid; next: cpu++; } @@ -298,6 +366,19 @@ next: if (cpu > NR_CPUS) pr_warning("no. of cores (%d) greater than configured maximum of %d - clipping\n", cpu, NR_CPUS); + + if (!bootcpu_valid) { + pr_err("DT missing boot CPU MPIDR, not enabling secondaries\n"); + return; + } + + /* + * All the cpus that made it to the cpu_logical_map have been + * validated so set them as possible cpus. + */ + for (i = 0; i < NR_CPUS; i++) + if (cpu_logical_map(i) != INVALID_HWID) + set_cpu_possible(i, true); } void __init smp_prepare_cpus(unsigned int max_cpus) diff --git a/arch/arm64/kernel/smp_psci.c b/arch/arm64/kernel/smp_psci.c index 1120916..0c53330 100644 --- a/arch/arm64/kernel/smp_psci.c +++ b/arch/arm64/kernel/smp_psci.c @@ -21,6 +21,7 @@ #include <linux/smp.h> #include <asm/psci.h> +#include <asm/smp_plat.h> static int __init smp_psci_init_cpu(struct device_node *dn, int cpu) { @@ -36,7 +37,7 @@ static int __init smp_psci_prepare_cpu(int cpu) return -ENODEV; } - err = psci_ops.cpu_on(cpu, __pa(secondary_holding_pen)); + err = psci_ops.cpu_on(cpu_logical_map(cpu), __pa(secondary_holding_pen)); if (err) { pr_err("psci: failed to boot CPU%d (%d)\n", cpu, err); return err; @@ -47,6 +48,6 @@ static int __init smp_psci_prepare_cpu(int cpu) const struct smp_enable_ops smp_psci_ops __initconst = { .name = "psci", - .init_cpu = smp_psci_init_cpu, + .init_cpu = smp_psci_init_cpu, .prepare_cpu = smp_psci_prepare_cpu, }; diff --git a/arch/arm64/kernel/sys32.S b/arch/arm64/kernel/sys32.S index 9416d04..db01aa9 100644 --- a/arch/arm64/kernel/sys32.S +++ b/arch/arm64/kernel/sys32.S @@ -84,13 +84,6 @@ compat_sys_readahead_wrapper: b sys_readahead ENDPROC(compat_sys_readahead_wrapper) -compat_sys_lookup_dcookie: - orr x0, x0, x1, lsl #32 - mov w1, w2 - mov w2, w3 - b sys_lookup_dcookie -ENDPROC(compat_sys_lookup_dcookie) - compat_sys_fadvise64_64_wrapper: mov w6, w1 orr x1, x2, x3, lsl #32 diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index b3c5f62..61d7dd2 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -167,13 +167,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) } } -void dump_stack(void) -{ - dump_backtrace(NULL, NULL); -} - -EXPORT_SYMBOL(dump_stack); - void show_stack(struct task_struct *tsk, unsigned long *sp) { dump_backtrace(NULL, tsk); diff --git a/arch/arm64/lib/Makefile b/arch/arm64/lib/Makefile index 2fb7f60..59acc0e 100644 --- a/arch/arm64/lib/Makefile +++ b/arch/arm64/lib/Makefile @@ -1,4 +1,6 @@ lib-y := bitops.o delay.o \ strncpy_from_user.o strnlen_user.o clear_user.o \ copy_from_user.o copy_to_user.o copy_in_user.o \ - copy_page.o clear_page.o + copy_page.o clear_page.o \ + memchr.o memcpy.o memmove.o memset.o \ + strchr.o strrchr.o diff --git a/arch/arm64/lib/bitops.S b/arch/arm64/lib/bitops.S new file mode 100644 index 0000000..36216d3 --- /dev/null +++ b/arch/arm64/lib/bitops.S @@ -0,0 +1,68 @@ +/* + * Based on arch/arm/lib/bitops.h + * + * Copyright (C) 2013 ARM Ltd. + * + * 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. + * + * 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 <http://www.gnu.org/licenses/>. + */ + +#include <linux/linkage.h> +#include <asm/assembler.h> + +/* + * x0: bits 5:0 bit offset + * bits 63:6 word offset + * x1: address + */ + .macro bitop, name, instr +ENTRY( \name ) + and x3, x0, #63 // Get bit offset + eor x0, x0, x3 // Clear low bits + mov x2, #1 + add x1, x1, x0, lsr #3 // Get word offset + lsl x3, x2, x3 // Create mask +1: ldxr x2, [x1] + \instr x2, x2, x3 + stxr w0, x2, [x1] + cbnz w0, 1b + ret +ENDPROC(\name ) + .endm + + .macro testop, name, instr +ENTRY( \name ) + and x3, x0, #63 // Get bit offset + eor x0, x0, x3 // Clear low bits + mov x2, #1 + add x1, x1, x0, lsr #3 // Get word offset + lsl x4, x2, x3 // Create mask +1: ldaxr x2, [x1] + lsr x0, x2, x3 // Save old value of bit + \instr x2, x2, x4 // toggle bit + stlxr w5, x2, [x1] + cbnz w5, 1b + and x0, x0, #1 +3: ret +ENDPROC(\name ) + .endm + +/* + * Atomic bit operations. + */ + bitop change_bit, eor + bitop clear_bit, bic + bitop set_bit, orr + + testop test_and_change_bit, eor + testop test_and_clear_bit, bic + testop test_and_set_bit, orr diff --git a/arch/arm64/lib/memchr.S b/arch/arm64/lib/memchr.S new file mode 100644 index 0000000..8636b75 --- /dev/null +++ b/arch/arm64/lib/memchr.S @@ -0,0 +1,44 @@ +/* + * Based on arch/arm/lib/memchr.S + * + * Copyright (C) 1995-2000 Russell King + * Copyright (C) 2013 ARM Ltd. + * + * 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. + * + * 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 <http://www.gnu.org/licenses/>. + */ + +#include <linux/linkage.h> +#include <asm/assembler.h> + +/* + * Find a character in an area of memory. + * + * Parameters: + * x0 - buf + * x1 - c + * x2 - n + * Returns: + * x0 - address of first occurrence of 'c' or 0 + */ +ENTRY(memchr) + and w1, w1, #0xff +1: subs x2, x2, #1 + b.mi 2f + ldrb w3, [x0], #1 + cmp w3, w1 + b.ne 1b + sub x0, x0, #1 + ret +2: mov x0, #0 + ret +ENDPROC(memchr) diff --git a/arch/arm64/lib/memcpy.S b/arch/arm64/lib/memcpy.S new file mode 100644 index 0000000..27b5003 --- /dev/null +++ b/arch/arm64/lib/memcpy.S @@ -0,0 +1,53 @@ +/* + * Copyright (C) 2013 ARM Ltd. + * + * 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. + * + * 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 <http://www.gnu.org/licenses/>. + */ + +#include <linux/linkage.h> +#include <asm/assembler.h> + +/* + * Copy a buffer from src to dest (alignment handled by the hardware) + * + * Parameters: + * x0 - dest + * x1 - src + * x2 - n + * Returns: + * x0 - dest + */ +ENTRY(memcpy) + mov x4, x0 + subs x2, x2, #8 + b.mi 2f +1: ldr x3, [x1], #8 + subs x2, x2, #8 + str x3, [x4], #8 + b.pl 1b +2: adds x2, x2, #4 + b.mi 3f + ldr w3, [x1], #4 + sub x2, x2, #4 + str w3, [x4], #4 +3: adds x2, x2, #2 + b.mi 4f + ldrh w3, [x1], #2 + sub x2, x2, #2 + strh w3, [x4], #2 +4: adds x2, x2, #1 + b.mi 5f + ldrb w3, [x1] + strb w3, [x4] +5: ret +ENDPROC(memcpy) diff --git a/arch/arm64/lib/memmove.S b/arch/arm64/lib/memmove.S new file mode 100644 index 0000000..b79fdfa --- /dev/null +++ b/arch/arm64/lib/memmove.S @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2013 ARM Ltd. + * + * 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. + * + * 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 <http://www.gnu.org/licenses/>. + */ + +#include <linux/linkage.h> +#include <asm/assembler.h> + +/* + * Move a buffer from src to test (alignment handled by the hardware). + * If dest <= src, call memcpy, otherwise copy in reverse order. + * + * Parameters: + * x0 - dest + * x1 - src + * x2 - n + * Returns: + * x0 - dest + */ +ENTRY(memmove) + cmp x0, x1 + b.ls memcpy + add x4, x0, x2 + add x1, x1, x2 + subs x2, x2, #8 + b.mi 2f +1: ldr x3, [x1, #-8]! + subs x2, x2, #8 + str x3, [x4, #-8]! + b.pl 1b +2: adds x2, x2, #4 + b.mi 3f + ldr w3, [x1, #-4]! + sub x2, x2, #4 + str w3, [x4, #-4]! +3: adds x2, x2, #2 + b.mi 4f + ldrh w3, [x1, #-2]! + sub x2, x2, #2 + strh w3, [x4, #-2]! +4: adds x2, x2, #1 + b.mi 5f + ldrb w3, [x1, #-1] + strb w3, [x4, #-1] +5: ret +ENDPROC(memmove) diff --git a/arch/arm64/lib/memset.S b/arch/arm64/lib/memset.S new file mode 100644 index 0000000..87e4a68 --- /dev/null +++ b/arch/arm64/lib/memset.S @@ -0,0 +1,53 @@ +/* + * Copyright (C) 2013 ARM Ltd. + * + * 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. + * + * 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 <http://www.gnu.org/licenses/>. + */ + +#include <linux/linkage.h> +#include <asm/assembler.h> + +/* + * Fill in the buffer with character c (alignment handled by the hardware) + * + * Parameters: + * x0 - buf + * x1 - c + * x2 - n + * Returns: + * x0 - buf + */ +ENTRY(memset) + mov x4, x0 + and w1, w1, #0xff + orr w1, w1, w1, lsl #8 + orr w1, w1, w1, lsl #16 + orr x1, x1, x1, lsl #32 + subs x2, x2, #8 + b.mi 2f +1: str x1, [x4], #8 + subs x2, x2, #8 + b.pl 1b +2: adds x2, x2, #4 + b.mi 3f + sub x2, x2, #4 + str w1, [x4], #4 +3: adds x2, x2, #2 + b.mi 4f + sub x2, x2, #2 + strh w1, [x4], #2 +4: adds x2, x2, #1 + b.mi 5f + strb w1, [x4] +5: ret +ENDPROC(memset) diff --git a/arch/arm64/lib/strchr.S b/arch/arm64/lib/strchr.S new file mode 100644 index 0000000..dae0cf5 --- /dev/null +++ b/arch/arm64/lib/strchr.S @@ -0,0 +1,42 @@ +/* + * Based on arch/arm/lib/strchr.S + * + * Copyright (C) 1995-2000 Russell King + * Copyright (C) 2013 ARM Ltd. + * + * 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. + * + * 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 <http://www.gnu.org/licenses/>. + */ + +#include <linux/linkage.h> +#include <asm/assembler.h> + +/* + * Find the first occurrence of a character in a string. + * + * Parameters: + * x0 - str + * x1 - c + * Returns: + * x0 - address of first occurrence of 'c' or 0 + */ +ENTRY(strchr) + and w1, w1, #0xff +1: ldrb w2, [x0], #1 + cmp w2, w1 + ccmp w2, wzr, #4, ne + b.ne 1b + sub x0, x0, #1 + cmp w2, w1 + csel x0, x0, xzr, eq + ret +ENDPROC(strchr) diff --git a/arch/arm64/lib/strrchr.S b/arch/arm64/lib/strrchr.S new file mode 100644 index 0000000..61eabd9 --- /dev/null +++ b/arch/arm64/lib/strrchr.S @@ -0,0 +1,43 @@ +/* + * Based on arch/arm/lib/strrchr.S + * + * Copyright (C) 1995-2000 Russell King + * Copyright (C) 2013 ARM Ltd. + * + * 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. + * + * 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 <http://www.gnu.org/licenses/>. + */ + +#include <linux/linkage.h> +#include <asm/assembler.h> + +/* + * Find the last occurrence of a character in a string. + * + * Parameters: + * x0 - str + * x1 - c + * Returns: + * x0 - address of last occurrence of 'c' or 0 + */ +ENTRY(strrchr) + mov x3, #0 + and w1, w1, #0xff +1: ldrb w2, [x0], #1 + cbz w2, 2f + cmp w2, w1 + b.ne 1b + sub x3, x0, #1 + b 1b +2: mov x0, x3 + ret +ENDPROC(strrchr) diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index afadae6..5263817 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -57,16 +57,16 @@ void show_pte(struct mm_struct *mm, unsigned long addr) pmd_t *pmd; pte_t *pte; - if (pgd_none_or_clear_bad(pgd)) + if (pgd_none(*pgd) || pgd_bad(*pgd)) break; pud = pud_offset(pgd, addr); - if (pud_none_or_clear_bad(pud)) + if (pud_none(*pud) || pud_bad(*pud)) break; pmd = pmd_offset(pud, addr); printk(", *pmd=%016llx", pmd_val(*pmd)); - if (pmd_none_or_clear_bad(pmd)) + if (pmd_none(*pmd) || pmd_bad(*pmd)) break; pte = pte_offset_map(pmd, addr); diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 800aac3..f497ca7 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -197,24 +197,6 @@ void __init bootmem_init(void) max_pfn = max_low_pfn = max; } -static inline int free_area(unsigned long pfn, unsigned long end, char *s) -{ - unsigned int pages = 0, size = (end - pfn) << (PAGE_SHIFT - 10); - - for (; pfn < end; pfn++) { - struct page *page = pfn_to_page(pfn); - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - pages++; - } - - if (size && s) - pr_info("Freeing %s memory: %dK\n", s, size); - - return pages; -} - /* * Poison init memory with an undefined instruction (0x0). */ @@ -405,9 +387,7 @@ void __init mem_init(void) void free_initmem(void) { poison_init_mem(__init_begin, __init_end - __init_begin); - totalram_pages += free_area(__phys_to_pfn(__pa(__init_begin)), - __phys_to_pfn(__pa(__init_end)), - "init"); + free_initmem_default(0); } #ifdef CONFIG_BLK_DEV_INITRD @@ -418,9 +398,7 @@ void free_initrd_mem(unsigned long start, unsigned long end) { if (!keep_initrd) { poison_init_mem((void *)start, PAGE_ALIGN(end) - start); - totalram_pages += free_area(__phys_to_pfn(__pa(start)), - __phys_to_pfn(__pa(end)), - "initrd"); + free_reserved_area(start, end, 0, "initrd"); } } diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 70b8cd4..eeecc9c 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -391,17 +391,14 @@ int kern_addr_valid(unsigned long addr) } #ifdef CONFIG_SPARSEMEM_VMEMMAP #ifdef CONFIG_ARM64_64K_PAGES -int __meminit vmemmap_populate(struct page *start_page, - unsigned long size, int node) +int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node) { - return vmemmap_populate_basepages(start_page, size, node); + return vmemmap_populate_basepages(start, end, node); } #else /* !CONFIG_ARM64_64K_PAGES */ -int __meminit vmemmap_populate(struct page *start_page, - unsigned long size, int node) +int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node) { - unsigned long addr = (unsigned long)start_page; - unsigned long end = (unsigned long)(start_page + size); + unsigned long addr = start; unsigned long next; pgd_t *pgd; pud_t *pud; @@ -434,7 +431,7 @@ int __meminit vmemmap_populate(struct page *start_page, return 0; } #endif /* CONFIG_ARM64_64K_PAGES */ -void vmemmap_free(struct page *memmap, unsigned long nr_pages) +void vmemmap_free(unsigned long start, unsigned long end) { } #endif /* CONFIG_SPARSEMEM_VMEMMAP */ diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig index c1a868d..22c4030 100644 --- a/arch/avr32/Kconfig +++ b/arch/avr32/Kconfig @@ -250,20 +250,7 @@ config ARCH_SUSPEND_POSSIBLE def_bool y menu "CPU Frequency scaling" - source "drivers/cpufreq/Kconfig" - -config CPU_FREQ_AT32AP - bool "CPU frequency driver for AT32AP" - depends on CPU_FREQ && PLATFORM_AT32AP - default n - help - This enables the CPU frequency driver for AT32AP processors. - - For details, take a look in <file:Documentation/cpu-freq>. - - If in doubt, say N. - endmenu endmenu diff --git a/arch/avr32/configs/atngw100_defconfig b/arch/avr32/configs/atngw100_defconfig index f4025db..d5aff36 100644 --- a/arch/avr32/configs/atngw100_defconfig +++ b/arch/avr32/configs/atngw100_defconfig @@ -26,7 +26,7 @@ CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_STAT is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_USERSPACE=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y CONFIG_NET=y CONFIG_PACKET=y diff --git a/arch/avr32/configs/atngw100_evklcd100_defconfig b/arch/avr32/configs/atngw100_evklcd100_defconfig index c76a49b..4abcf43 100644 --- a/arch/avr32/configs/atngw100_evklcd100_defconfig +++ b/arch/avr32/configs/atngw100_evklcd100_defconfig @@ -28,7 +28,7 @@ CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_STAT is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_USERSPACE=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y CONFIG_NET=y CONFIG_PACKET=y diff --git a/arch/avr32/configs/atngw100_evklcd101_defconfig b/arch/avr32/configs/atngw100_evklcd101_defconfig index 2d8ab08..18f3fa0 100644 --- a/arch/avr32/configs/atngw100_evklcd101_defconfig +++ b/arch/avr32/configs/atngw100_evklcd101_defconfig @@ -27,7 +27,7 @@ CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_STAT is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_USERSPACE=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y CONFIG_NET=y CONFIG_PACKET=y diff --git a/arch/avr32/configs/atngw100_mrmt_defconfig b/arch/avr32/configs/atngw100_mrmt_defconfig index b189e0c..06e389c 100644 --- a/arch/avr32/configs/atngw100_mrmt_defconfig +++ b/arch/avr32/configs/atngw100_mrmt_defconfig @@ -23,7 +23,7 @@ CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_GOV_POWERSAVE=y CONFIG_CPU_FREQ_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_ONDEMAND=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y diff --git a/arch/avr32/configs/atngw100mkii_defconfig b/arch/avr32/configs/atngw100mkii_defconfig index 2e4de42..2518a13 100644 --- a/arch/avr32/configs/atngw100mkii_defconfig +++ b/arch/avr32/configs/atngw100mkii_defconfig @@ -26,7 +26,7 @@ CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_STAT is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_USERSPACE=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y CONFIG_NET=y CONFIG_PACKET=y diff --git a/arch/avr32/configs/atngw100mkii_evklcd100_defconfig b/arch/avr32/configs/atngw100mkii_evklcd100_defconfig index fad3cd2..245ef6b 100644 --- a/arch/avr32/configs/atngw100mkii_evklcd100_defconfig +++ b/arch/avr32/configs/atngw100mkii_evklcd100_defconfig @@ -29,7 +29,7 @@ CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_STAT is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_USERSPACE=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y CONFIG_NET=y CONFIG_PACKET=y diff --git a/arch/avr32/configs/atngw100mkii_evklcd101_defconfig b/arch/avr32/configs/atngw100mkii_evklcd101_defconfig index 2998623..fa6cbac 100644 --- a/arch/avr32/configs/atngw100mkii_evklcd101_defconfig +++ b/arch/avr32/configs/atngw100mkii_evklcd101_defconfig @@ -28,7 +28,7 @@ CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_STAT is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_USERSPACE=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y CONFIG_NET=y CONFIG_PACKET=y diff --git a/arch/avr32/configs/atstk1002_defconfig b/arch/avr32/configs/atstk1002_defconfig index a582465..bbd5131 100644 --- a/arch/avr32/configs/atstk1002_defconfig +++ b/arch/avr32/configs/atstk1002_defconfig @@ -25,7 +25,7 @@ CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_STAT is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_USERSPACE=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y CONFIG_NET=y CONFIG_PACKET=y diff --git a/arch/avr32/configs/atstk1003_defconfig b/arch/avr32/configs/atstk1003_defconfig index 57a79df..c1cd726 100644 --- a/arch/avr32/configs/atstk1003_defconfig +++ b/arch/avr32/configs/atstk1003_defconfig @@ -26,7 +26,7 @@ CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_STAT is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_USERSPACE=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y CONFIG_NET=y CONFIG_PACKET=y diff --git a/arch/avr32/configs/atstk1004_defconfig b/arch/avr32/configs/atstk1004_defconfig index 1a49bd8..754ae56 100644 --- a/arch/avr32/configs/atstk1004_defconfig +++ b/arch/avr32/configs/atstk1004_defconfig @@ -26,7 +26,7 @@ CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_STAT is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_USERSPACE=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y CONFIG_NET=y CONFIG_PACKET=y diff --git a/arch/avr32/configs/atstk1006_defconfig b/arch/avr32/configs/atstk1006_defconfig index 206a1b6..58589d8 100644 --- a/arch/avr32/configs/atstk1006_defconfig +++ b/arch/avr32/configs/atstk1006_defconfig @@ -26,7 +26,7 @@ CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_STAT is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_USERSPACE=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y CONFIG_NET=y CONFIG_PACKET=y diff --git a/arch/avr32/configs/favr-32_defconfig b/arch/avr32/configs/favr-32_defconfig index 0421498..57788a4 100644 --- a/arch/avr32/configs/favr-32_defconfig +++ b/arch/avr32/configs/favr-32_defconfig @@ -27,7 +27,7 @@ CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_STAT is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_USERSPACE=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y diff --git a/arch/avr32/configs/hammerhead_defconfig b/arch/avr32/configs/hammerhead_defconfig index 82f24eb..ba7c31e 100644 --- a/arch/avr32/configs/hammerhead_defconfig +++ b/arch/avr32/configs/hammerhead_defconfig @@ -31,7 +31,7 @@ CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_STAT is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_USERSPACE=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y diff --git a/arch/avr32/configs/mimc200_defconfig b/arch/avr32/configs/mimc200_defconfig index 1bee51f..0a8bfdc 100644 --- a/arch/avr32/configs/mimc200_defconfig +++ b/arch/avr32/configs/mimc200_defconfig @@ -24,7 +24,7 @@ CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_STAT is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_USERSPACE=y -CONFIG_CPU_FREQ_AT32AP=y +CONFIG_AVR32_AT32AP_CPUFREQ=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y diff --git a/arch/avr32/include/asm/unistd.h b/arch/avr32/include/asm/unistd.h index dc4d5a9..c1eb080 100644 --- a/arch/avr32/include/asm/unistd.h +++ b/arch/avr32/include/asm/unistd.h @@ -41,12 +41,4 @@ #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_CLONE -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall"); - #endif /* __ASM_AVR32_UNISTD_H */ diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c index fd78f58..e7b6149 100644 --- a/arch/avr32/kernel/process.c +++ b/arch/avr32/kernel/process.c @@ -30,18 +30,9 @@ EXPORT_SYMBOL(pm_power_off); * This file handles the architecture-dependent parts of process handling.. */ -void cpu_idle(void) +void arch_cpu_idle(void) { - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - while (!need_resched()) - cpu_idle_sleep(); - rcu_idle_exit(); - tick_nohz_idle_exit(); - schedule_preempt_disabled(); - } + cpu_enter_idle(); } void machine_halt(void) @@ -213,14 +204,6 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) show_stack_log_lvl(tsk, (unsigned long)stack, NULL, ""); } -void dump_stack(void) -{ - unsigned long stack; - - show_trace_log_lvl(current, &stack, NULL, ""); -} -EXPORT_SYMBOL(dump_stack); - static const char *cpu_modes[] = { "Application", "Supervisor", "Interrupt level 0", "Interrupt level 1", "Interrupt level 2", "Interrupt level 3", "Exception", "NMI" @@ -232,6 +215,8 @@ void show_regs_log_lvl(struct pt_regs *regs, const char *log_lvl) unsigned long lr = regs->lr; unsigned long mode = (regs->sr & MODE_MASK) >> MODE_SHIFT; + show_regs_print_info(log_lvl); + if (!user_mode(regs)) { sp = (unsigned long)regs + FRAME_SIZE_FULL; @@ -269,9 +254,6 @@ void show_regs_log_lvl(struct pt_regs *regs, const char *log_lvl) regs->sr & SR_I0M ? '0' : '.', regs->sr & SR_GM ? 'G' : 'g'); printk("%sCPU Mode: %s\n", log_lvl, cpu_modes[mode]); - printk("%sProcess: %s [%d] (task: %p thread: %p)\n", - log_lvl, current->comm, current->pid, current, - task_thread_info(current)); } void show_regs(struct pt_regs *regs) diff --git a/arch/avr32/kernel/time.c b/arch/avr32/kernel/time.c index 05ad291..869a1c6 100644 --- a/arch/avr32/kernel/time.c +++ b/arch/avr32/kernel/time.c @@ -12,6 +12,7 @@ #include <linux/irq.h> #include <linux/kernel.h> #include <linux/time.h> +#include <linux/cpu.h> #include <asm/sysreg.h> @@ -87,13 +88,17 @@ static void comparator_mode(enum clock_event_mode mode, pr_debug("%s: start\n", evdev->name); /* FALLTHROUGH */ case CLOCK_EVT_MODE_RESUME: - cpu_disable_idle_sleep(); + /* + * If we're using the COUNT and COMPARE registers we + * need to force idle poll. + */ + cpu_idle_poll_ctrl(true); break; case CLOCK_EVT_MODE_UNUSED: case CLOCK_EVT_MODE_SHUTDOWN: sysreg_write(COMPARE, 0); pr_debug("%s: stop\n", evdev->name); - cpu_enable_idle_sleep(); + cpu_idle_poll_ctrl(false); break; default: BUG(); diff --git a/arch/avr32/mach-at32ap/Makefile b/arch/avr32/mach-at32ap/Makefile index 514c9a9..fc09ec4 100644 --- a/arch/avr32/mach-at32ap/Makefile +++ b/arch/avr32/mach-at32ap/Makefile @@ -1,7 +1,6 @@ obj-y += pdc.o clock.o intc.o extint.o pio.o hsmc.o obj-y += hmatrix.o obj-$(CONFIG_CPU_AT32AP700X) += at32ap700x.o pm-at32ap700x.o -obj-$(CONFIG_CPU_FREQ_AT32AP) += cpufreq.o obj-$(CONFIG_PM) += pm.o ifeq ($(CONFIG_PM_DEBUG),y) diff --git a/arch/avr32/mach-at32ap/cpufreq.c b/arch/avr32/mach-at32ap/cpufreq.c deleted file mode 100644 index 18b7656..0000000 --- a/arch/avr32/mach-at32ap/cpufreq.c +++ /dev/null @@ -1,124 +0,0 @@ -/* - * Copyright (C) 2004-2007 Atmel Corporation - * - * Based on MIPS implementation arch/mips/kernel/time.c - * Copyright 2001 MontaVista Software Inc. - * - * 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. - */ - -/*#define DEBUG*/ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/cpufreq.h> -#include <linux/io.h> -#include <linux/clk.h> -#include <linux/err.h> -#include <linux/export.h> - -static struct clk *cpuclk; - -static int at32_verify_speed(struct cpufreq_policy *policy) -{ - if (policy->cpu != 0) - return -EINVAL; - - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); - return 0; -} - -static unsigned int at32_get_speed(unsigned int cpu) -{ - /* No SMP support */ - if (cpu) - return 0; - return (unsigned int)((clk_get_rate(cpuclk) + 500) / 1000); -} - -static unsigned int ref_freq; -static unsigned long loops_per_jiffy_ref; - -static int at32_set_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - struct cpufreq_freqs freqs; - long freq; - - /* Convert target_freq from kHz to Hz */ - freq = clk_round_rate(cpuclk, target_freq * 1000); - - /* Check if policy->min <= new_freq <= policy->max */ - if(freq < (policy->min * 1000) || freq > (policy->max * 1000)) - return -EINVAL; - - pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000); - - freqs.old = at32_get_speed(0); - freqs.new = (freq + 500) / 1000; - freqs.cpu = 0; - freqs.flags = 0; - - if (!ref_freq) { - ref_freq = freqs.old; - loops_per_jiffy_ref = boot_cpu_data.loops_per_jiffy; - } - - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - if (freqs.old < freqs.new) - boot_cpu_data.loops_per_jiffy = cpufreq_scale( - loops_per_jiffy_ref, ref_freq, freqs.new); - clk_set_rate(cpuclk, freq); - if (freqs.new < freqs.old) - boot_cpu_data.loops_per_jiffy = cpufreq_scale( - loops_per_jiffy_ref, ref_freq, freqs.new); - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - pr_debug("cpufreq: set frequency %lu Hz\n", freq); - - return 0; -} - -static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy) -{ - if (policy->cpu != 0) - return -EINVAL; - - cpuclk = clk_get(NULL, "cpu"); - if (IS_ERR(cpuclk)) { - pr_debug("cpufreq: could not get CPU clk\n"); - return PTR_ERR(cpuclk); - } - - policy->cpuinfo.min_freq = (clk_round_rate(cpuclk, 1) + 500) / 1000; - policy->cpuinfo.max_freq = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000; - policy->cpuinfo.transition_latency = 0; - policy->cur = at32_get_speed(0); - policy->min = policy->cpuinfo.min_freq; - policy->max = policy->cpuinfo.max_freq; - - printk("cpufreq: AT32AP CPU frequency driver\n"); - - return 0; -} - -static struct cpufreq_driver at32_driver = { - .name = "at32ap", - .owner = THIS_MODULE, - .init = at32_cpufreq_driver_init, - .verify = at32_verify_speed, - .target = at32_set_target, - .get = at32_get_speed, - .flags = CPUFREQ_STICKY, -}; - -static int __init at32_cpufreq_init(void) -{ - return cpufreq_register_driver(&at32_driver); -} -late_initcall(at32_cpufreq_init); diff --git a/arch/avr32/mach-at32ap/include/mach/pm.h b/arch/avr32/mach-at32ap/include/mach/pm.h index 979b355..f29ff2c 100644 --- a/arch/avr32/mach-at32ap/include/mach/pm.h +++ b/arch/avr32/mach-at32ap/include/mach/pm.h @@ -21,30 +21,6 @@ extern void cpu_enter_idle(void); extern void cpu_enter_standby(unsigned long sdramc_base); -extern bool disable_idle_sleep; - -static inline void cpu_disable_idle_sleep(void) -{ - disable_idle_sleep = true; -} - -static inline void cpu_enable_idle_sleep(void) -{ - disable_idle_sleep = false; -} - -static inline void cpu_idle_sleep(void) -{ - /* - * If we're using the COUNT and COMPARE registers for - * timekeeping, we can't use the IDLE state. - */ - if (disable_idle_sleep) - cpu_relax(); - else - cpu_enter_idle(); -} - void intc_set_suspend_handler(unsigned long offset); #endif diff --git a/arch/avr32/mach-at32ap/pm-at32ap700x.S b/arch/avr32/mach-at32ap/pm-at32ap700x.S index f868f4c..1c8e4e6 100644 --- a/arch/avr32/mach-at32ap/pm-at32ap700x.S +++ b/arch/avr32/mach-at32ap/pm-at32ap700x.S @@ -18,13 +18,6 @@ /* Same as 0xfff00000 but fits in a 21 bit signed immediate */ #define PM_BASE -0x100000 - .section .bss, "wa", @nobits - .global disable_idle_sleep - .type disable_idle_sleep, @object -disable_idle_sleep: - .int 4 - .size disable_idle_sleep, . - disable_idle_sleep - /* Keep this close to the irq handlers */ .section .irq.text, "ax", @progbits diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c index 2798c2d..e66e840 100644 --- a/arch/avr32/mm/init.c +++ b/arch/avr32/mm/init.c @@ -146,34 +146,14 @@ void __init mem_init(void) initsize >> 10); } -static inline void free_area(unsigned long addr, unsigned long end, char *s) -{ - unsigned int size = (end - addr) >> 10; - - for (; addr < end; addr += PAGE_SIZE) { - struct page *page = virt_to_page(addr); - ClearPageReserved(page); - init_page_count(page); - free_page(addr); - totalram_pages++; - } - - if (size && s) - printk(KERN_INFO "Freeing %s memory: %dK (%lx - %lx)\n", - s, size, end - (size << 10), end); -} - void free_initmem(void) { - free_area((unsigned long)__init_begin, (unsigned long)__init_end, - "init"); + free_initmem_default(0); } #ifdef CONFIG_BLK_DEV_INITRD - void free_initrd_mem(unsigned long start, unsigned long end) { - free_area(start, end, "initrd"); + free_reserved_area(start, end, 0, "initrd"); } - #endif diff --git a/arch/blackfin/include/asm/bfin_sport3.h b/arch/blackfin/include/asm/bfin_sport3.h index 03c0022..d82f5fa 100644 --- a/arch/blackfin/include/asm/bfin_sport3.h +++ b/arch/blackfin/include/asm/bfin_sport3.h @@ -41,7 +41,7 @@ #define SPORT_CTL_LAFS 0x00020000 /* Late Transmit frame select */ #define SPORT_CTL_RJUST 0x00040000 /* Right Justified mode select */ #define SPORT_CTL_FSED 0x00080000 /* External frame sync edge select */ -#define SPORT_CTL_TFIEN 0x00100000 /* Transmit finish interrrupt enable select */ +#define SPORT_CTL_TFIEN 0x00100000 /* Transmit finish interrupt enable select */ #define SPORT_CTL_GCLKEN 0x00200000 /* Gated clock mode select */ #define SPORT_CTL_SPENSEC 0x01000000 /* Enable secondary channel */ #define SPORT_CTL_SPTRAN 0x02000000 /* Data direction control */ diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h index 04e83ea..c35414b 100644 --- a/arch/blackfin/include/asm/unistd.h +++ b/arch/blackfin/include/asm/unistd.h @@ -20,12 +20,4 @@ #define __ARCH_WANT_SYS_NICE #define __ARCH_WANT_SYS_VFORK -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t_" #x "\n\t.set\t_" #x ",_sys_ni_syscall"); - #endif /* __ASM_BFIN_UNISTD_H */ diff --git a/arch/blackfin/kernel/dumpstack.c b/arch/blackfin/kernel/dumpstack.c index 5cfbaa2..95ba6d9 100644 --- a/arch/blackfin/kernel/dumpstack.c +++ b/arch/blackfin/kernel/dumpstack.c @@ -168,6 +168,7 @@ void dump_stack(void) #endif trace_buffer_save(tflags); dump_bfin_trace_buffer(); + dump_stack_print_info(KERN_DEFAULT); show_stack(current, &stack); trace_buffer_restore(tflags); } diff --git a/arch/blackfin/kernel/early_printk.c b/arch/blackfin/kernel/early_printk.c index 84ed837..61fbd2d 100644 --- a/arch/blackfin/kernel/early_printk.c +++ b/arch/blackfin/kernel/early_printk.c @@ -25,8 +25,6 @@ extern struct console *bfin_earlyserial_init(unsigned int port, extern struct console *bfin_jc_early_init(void); #endif -static struct console *early_console; - /* Default console */ #define DEFAULT_PORT 0 #define DEFAULT_CFLAG CS8|B57600 diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c index 9782c03..4aa5545 100644 --- a/arch/blackfin/kernel/process.c +++ b/arch/blackfin/kernel/process.c @@ -46,15 +46,14 @@ EXPORT_SYMBOL(pm_power_off); * The idle loop on BFIN */ #ifdef CONFIG_IDLE_L1 -static void default_idle(void)__attribute__((l1_text)); -void cpu_idle(void)__attribute__((l1_text)); +void arch_cpu_idle(void)__attribute__((l1_text)); #endif /* * This is our default idle handler. We need to disable * interrupts here to ensure we don't miss a wakeup call. */ -static void default_idle(void) +void arch_cpu_idle(void) { #ifdef CONFIG_IPIPE ipipe_suspend_domain(); @@ -66,31 +65,12 @@ static void default_idle(void) hard_local_irq_enable(); } -/* - * The idle thread. We try to conserve power, while trying to keep - * overall latency low. The architecture specific idle is passed - * a value to indicate the level of "idleness" of the system. - */ -void cpu_idle(void) -{ - /* endless idle loop with no priority at all */ - while (1) { - #ifdef CONFIG_HOTPLUG_CPU - if (cpu_is_offline(smp_processor_id())) - cpu_die(); -#endif - tick_nohz_idle_enter(); - rcu_idle_enter(); - while (!need_resched()) - default_idle(); - rcu_idle_exit(); - tick_nohz_idle_exit(); - preempt_enable_no_resched(); - schedule(); - preempt_disable(); - } +void arch_cpu_idle_dead(void) +{ + cpu_die(); } +#endif /* * Do necessary setup to start up a newly executed thread. diff --git a/arch/blackfin/kernel/trace.c b/arch/blackfin/kernel/trace.c index f7f7a18..c36efa0 100644 --- a/arch/blackfin/kernel/trace.c +++ b/arch/blackfin/kernel/trace.c @@ -853,6 +853,8 @@ void show_regs(struct pt_regs *fp) unsigned char in_atomic = (bfin_read_IPEND() & 0x10) || in_atomic(); pr_notice("\n"); + show_regs_print_info(KERN_NOTICE); + if (CPUID != bfin_cpuid()) pr_notice("Compiled for cpu family 0x%04x (Rev %d), " "but running on:0x%04x (Rev %d)\n", diff --git a/arch/blackfin/mach-bf609/boards/ezkit.c b/arch/blackfin/mach-bf609/boards/ezkit.c index 61c1f47..97d7016 100644 --- a/arch/blackfin/mach-bf609/boards/ezkit.c +++ b/arch/blackfin/mach-bf609/boards/ezkit.c @@ -936,19 +936,19 @@ static struct v4l2_input adv7842_inputs[] = { .index = 2, .name = "Component", .type = V4L2_INPUT_TYPE_CAMERA, - .capabilities = V4L2_IN_CAP_CUSTOM_TIMINGS, + .capabilities = V4L2_IN_CAP_DV_TIMINGS, }, { .index = 3, .name = "VGA", .type = V4L2_INPUT_TYPE_CAMERA, - .capabilities = V4L2_IN_CAP_CUSTOM_TIMINGS, + .capabilities = V4L2_IN_CAP_DV_TIMINGS, }, { .index = 4, .name = "HDMI", .type = V4L2_INPUT_TYPE_CAMERA, - .capabilities = V4L2_IN_CAP_CUSTOM_TIMINGS, + .capabilities = V4L2_IN_CAP_DV_TIMINGS, }, }; @@ -1074,7 +1074,7 @@ static struct v4l2_output adv7511_outputs[] = { .index = 0, .name = "HDMI", .type = V4L2_INPUT_TYPE_CAMERA, - .capabilities = V4L2_OUT_CAP_CUSTOM_TIMINGS, + .capabilities = V4L2_OUT_CAP_DV_TIMINGS, }, }; diff --git a/arch/blackfin/mach-common/Makefile b/arch/blackfin/mach-common/Makefile index 75f0ba2..675466d 100644 --- a/arch/blackfin/mach-common/Makefile +++ b/arch/blackfin/mach-common/Makefile @@ -10,7 +10,6 @@ obj-$(CONFIG_PM) += pm.o ifneq ($(CONFIG_BF60x),y) obj-$(CONFIG_PM) += dpmc_modes.o endif -obj-$(CONFIG_CPU_FREQ) += cpufreq.o obj-$(CONFIG_CPU_VOLTAGE) += dpmc.o obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_BFIN_KERNEL_CLOCK) += clocks-init.o diff --git a/arch/blackfin/mach-common/cpufreq.c b/arch/blackfin/mach-common/cpufreq.c deleted file mode 100644 index d88bd31..0000000 --- a/arch/blackfin/mach-common/cpufreq.c +++ /dev/null @@ -1,258 +0,0 @@ -/* - * Blackfin core clock scaling - * - * Copyright 2008-2011 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/clk.h> -#include <linux/cpufreq.h> -#include <linux/fs.h> -#include <linux/delay.h> -#include <asm/blackfin.h> -#include <asm/time.h> -#include <asm/dpmc.h> - - -/* this is the table of CCLK frequencies, in Hz */ -/* .index is the entry in the auxiliary dpm_state_table[] */ -static struct cpufreq_frequency_table bfin_freq_table[] = { - { - .frequency = CPUFREQ_TABLE_END, - .index = 0, - }, - { - .frequency = CPUFREQ_TABLE_END, - .index = 1, - }, - { - .frequency = CPUFREQ_TABLE_END, - .index = 2, - }, - { - .frequency = CPUFREQ_TABLE_END, - .index = 0, - }, -}; - -static struct bfin_dpm_state { - unsigned int csel; /* system clock divider */ - unsigned int tscale; /* change the divider on the core timer interrupt */ -} dpm_state_table[3]; - -#if defined(CONFIG_CYCLES_CLOCKSOURCE) -/* - * normalized to maximum frequency offset for CYCLES, - * used in time-ts cycles clock source, but could be used - * somewhere also. - */ -unsigned long long __bfin_cycles_off; -unsigned int __bfin_cycles_mod; -#endif - -/**************************************************************************/ -static void __init bfin_init_tables(unsigned long cclk, unsigned long sclk) -{ - - unsigned long csel, min_cclk; - int index; - - /* Anomaly 273 seems to still exist on non-BF54x w/dcache turned on */ -#if ANOMALY_05000273 || ANOMALY_05000274 || \ - (!(defined(CONFIG_BF54x) || defined(CONFIG_BF60x)) \ - && defined(CONFIG_BFIN_EXTMEM_DCACHEABLE)) - min_cclk = sclk * 2; -#else - min_cclk = sclk; -#endif - -#ifndef CONFIG_BF60x - csel = ((bfin_read_PLL_DIV() & CSEL) >> 4); -#else - csel = bfin_read32(CGU0_DIV) & 0x1F; -#endif - - for (index = 0; (cclk >> index) >= min_cclk && csel <= 3 && index < 3; index++, csel++) { - bfin_freq_table[index].frequency = cclk >> index; -#ifndef CONFIG_BF60x - dpm_state_table[index].csel = csel << 4; /* Shift now into PLL_DIV bitpos */ -#else - dpm_state_table[index].csel = csel; -#endif - dpm_state_table[index].tscale = (TIME_SCALE >> index) - 1; - - pr_debug("cpufreq: freq:%d csel:0x%x tscale:%d\n", - bfin_freq_table[index].frequency, - dpm_state_table[index].csel, - dpm_state_table[index].tscale); - } - return; -} - -static void bfin_adjust_core_timer(void *info) -{ - unsigned int tscale; - unsigned int index = *(unsigned int *)info; - - /* we have to adjust the core timer, because it is using cclk */ - tscale = dpm_state_table[index].tscale; - bfin_write_TSCALE(tscale); - return; -} - -static unsigned int bfin_getfreq_khz(unsigned int cpu) -{ - /* Both CoreA/B have the same core clock */ - return get_cclk() / 1000; -} - -#ifdef CONFIG_BF60x -unsigned long cpu_set_cclk(int cpu, unsigned long new) -{ - struct clk *clk; - int ret; - - clk = clk_get(NULL, "CCLK"); - if (IS_ERR(clk)) - return -ENODEV; - - ret = clk_set_rate(clk, new); - clk_put(clk); - return ret; -} -#endif - -static int bfin_target(struct cpufreq_policy *poli, - unsigned int target_freq, unsigned int relation) -{ -#ifndef CONFIG_BF60x - unsigned int plldiv; -#endif - unsigned int index, cpu; - unsigned long cclk_hz; - struct cpufreq_freqs freqs; - static unsigned long lpj_ref; - static unsigned int lpj_ref_freq; - int ret = 0; - -#if defined(CONFIG_CYCLES_CLOCKSOURCE) - cycles_t cycles; -#endif - - for_each_online_cpu(cpu) { - struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); - - if (!policy) - continue; - - if (cpufreq_frequency_table_target(policy, bfin_freq_table, - target_freq, relation, &index)) - return -EINVAL; - - cclk_hz = bfin_freq_table[index].frequency; - - freqs.old = bfin_getfreq_khz(0); - freqs.new = cclk_hz; - freqs.cpu = cpu; - - pr_debug("cpufreq: changing cclk to %lu; target = %u, oldfreq = %u\n", - cclk_hz, target_freq, freqs.old); - - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - if (cpu == CPUFREQ_CPU) { -#ifndef CONFIG_BF60x - plldiv = (bfin_read_PLL_DIV() & SSEL) | - dpm_state_table[index].csel; - bfin_write_PLL_DIV(plldiv); -#else - ret = cpu_set_cclk(cpu, freqs.new * 1000); - if (ret != 0) { - WARN_ONCE(ret, "cpufreq set freq failed %d\n", ret); - break; - } -#endif - on_each_cpu(bfin_adjust_core_timer, &index, 1); -#if defined(CONFIG_CYCLES_CLOCKSOURCE) - cycles = get_cycles(); - SSYNC(); - cycles += 10; /* ~10 cycles we lose after get_cycles() */ - __bfin_cycles_off += - (cycles << __bfin_cycles_mod) - (cycles << index); - __bfin_cycles_mod = index; -#endif - if (!lpj_ref_freq) { - lpj_ref = loops_per_jiffy; - lpj_ref_freq = freqs.old; - } - if (freqs.new != freqs.old) { - loops_per_jiffy = cpufreq_scale(lpj_ref, - lpj_ref_freq, freqs.new); - } - } - /* TODO: just test case for cycles clock source, remove later */ - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - } - - pr_debug("cpufreq: done\n"); - return ret; -} - -static int bfin_verify_speed(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, bfin_freq_table); -} - -static int __bfin_cpu_init(struct cpufreq_policy *policy) -{ - - unsigned long cclk, sclk; - - cclk = get_cclk() / 1000; - sclk = get_sclk() / 1000; - - if (policy->cpu == CPUFREQ_CPU) - bfin_init_tables(cclk, sclk); - - policy->cpuinfo.transition_latency = 50000; /* 50us assumed */ - - policy->cur = cclk; - cpufreq_frequency_table_get_attr(bfin_freq_table, policy->cpu); - return cpufreq_frequency_table_cpuinfo(policy, bfin_freq_table); -} - -static struct freq_attr *bfin_freq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - -static struct cpufreq_driver bfin_driver = { - .verify = bfin_verify_speed, - .target = bfin_target, - .get = bfin_getfreq_khz, - .init = __bfin_cpu_init, - .name = "bfin cpufreq", - .owner = THIS_MODULE, - .attr = bfin_freq_attr, -}; - -static int __init bfin_cpu_init(void) -{ - return cpufreq_register_driver(&bfin_driver); -} - -static void __exit bfin_cpu_exit(void) -{ - cpufreq_unregister_driver(&bfin_driver); -} - -MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>"); -MODULE_DESCRIPTION("cpufreq driver for Blackfin"); -MODULE_LICENSE("GPL"); - -module_init(bfin_cpu_init); -module_exit(bfin_cpu_exit); diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c index bb61ae4..1bc2ce6 100644 --- a/arch/blackfin/mach-common/smp.c +++ b/arch/blackfin/mach-common/smp.c @@ -335,7 +335,7 @@ void __cpuinit secondary_start_kernel(void) */ calibrate_delay(); - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } void __init smp_prepare_boot_cpu(void) diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c index 9cb8553..82d01a7 100644 --- a/arch/blackfin/mm/init.c +++ b/arch/blackfin/mm/init.c @@ -103,7 +103,7 @@ void __init mem_init(void) max_mapnr = num_physpages = MAP_NR(high_memory); printk(KERN_DEBUG "Kernel managed physical pages: %lu\n", num_physpages); - /* This will put all memory onto the freelists. */ + /* This will put all low memory onto the freelists. */ totalram_pages = free_all_bootmem(); reservedpages = 0; @@ -129,24 +129,11 @@ void __init mem_init(void) initk, codek, datak, DMA_UNCACHED_REGION >> 10, (reservedpages << (PAGE_SHIFT-10))); } -static void __init free_init_pages(const char *what, unsigned long begin, unsigned long end) -{ - unsigned long addr; - /* next to check that the page we free is not a partial page */ - for (addr = begin; addr + PAGE_SIZE <= end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } - printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10); -} - #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { #ifndef CONFIG_MPU - free_init_pages("initrd memory", start, end); + free_reserved_area(start, end, 0, "initrd"); #endif } #endif @@ -154,10 +141,7 @@ void __init free_initrd_mem(unsigned long start, unsigned long end) void __init_refok free_initmem(void) { #if defined CONFIG_RAMKERNEL && !defined CONFIG_MPU - free_init_pages("unused kernel memory", - (unsigned long)(&__init_begin), - (unsigned long)(&__init_end)); - + free_initmem_default(0); if (memory_start == (unsigned long)(&__init_end)) memory_start = (unsigned long)(&__init_begin); #endif diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c index 6434df4..57d2ea8 100644 --- a/arch/c6x/kernel/process.c +++ b/arch/c6x/kernel/process.c @@ -33,7 +33,7 @@ extern asmlinkage void ret_from_kernel_thread(void); void (*pm_power_off)(void); EXPORT_SYMBOL(pm_power_off); -static void c6x_idle(void) +void arch_cpu_idle(void) { unsigned long tmp; @@ -49,32 +49,6 @@ static void c6x_idle(void) : "=b"(tmp)); } -/* - * The idle loop for C64x - */ -void cpu_idle(void) -{ - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - while (1) { - local_irq_disable(); - if (need_resched()) { - local_irq_enable(); - break; - } - c6x_idle(); /* enables local irqs */ - } - rcu_idle_exit(); - tick_nohz_idle_exit(); - - preempt_enable_no_resched(); - schedule(); - preempt_disable(); - } -} - static void halt_loop(void) { printk(KERN_EMERG "System Halted, OK to turn off power\n"); diff --git a/arch/c6x/kernel/traps.c b/arch/c6x/kernel/traps.c index 1be74e5..dcc2c2f 100644 --- a/arch/c6x/kernel/traps.c +++ b/arch/c6x/kernel/traps.c @@ -31,6 +31,7 @@ void __init trap_init(void) void show_regs(struct pt_regs *regs) { pr_err("\n"); + show_regs_print_info(KERN_ERR); pr_err("PC: %08lx SP: %08lx\n", regs->pc, regs->sp); pr_err("Status: %08lx ORIG_A4: %08lx\n", regs->csr, regs->orig_a4); pr_err("A0: %08lx B0: %08lx\n", regs->a0, regs->b0); @@ -67,15 +68,6 @@ void show_regs(struct pt_regs *regs) pr_err("A31: %08lx B31: %08lx\n", regs->a31, regs->b31); } -void dump_stack(void) -{ - unsigned long stack; - - show_stack(current, &stack); -} -EXPORT_SYMBOL(dump_stack); - - void die(char *str, struct pt_regs *fp, int nr) { console_verbose(); diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c index 89395f0..a9fcd89 100644 --- a/arch/c6x/mm/init.c +++ b/arch/c6x/mm/init.c @@ -77,37 +77,11 @@ void __init mem_init(void) #ifdef CONFIG_BLK_DEV_INITRD void __init 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_INFO "Freeing initrd memory: %luk freed\n", - (pages * PAGE_SIZE) >> 10); + free_reserved_area(start, end, 0, "initrd"); } #endif void __init free_initmem(void) { - 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_INFO "Freeing unused kernel memory: %dK freed\n", - (int) ((addr - PAGE_ALIGN((long) &__init_begin)) >> 10)); + free_initmem_default(0); } diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c index b101875..753e9a0 100644 --- a/arch/cris/arch-v10/kernel/process.c +++ b/arch/cris/arch-v10/kernel/process.c @@ -30,8 +30,9 @@ void etrax_gpio_wake_up_check(void); /* drivers/gpio.c */ void default_idle(void) { #ifdef CONFIG_ETRAX_GPIO - etrax_gpio_wake_up_check(); + etrax_gpio_wake_up_check(); #endif + local_irq_enable(); } /* @@ -175,6 +176,9 @@ unsigned long get_wchan(struct task_struct *p) void show_regs(struct pt_regs * regs) { unsigned long usp = rdusp(); + + show_regs_print_info(KERN_DEFAULT); + printk("IRP: %08lx SRP: %08lx DCCR: %08lx USP: %08lx MOF: %08lx\n", regs->irp, regs->srp, regs->dccr, usp, regs->mof ); printk(" r0: %08lx r1: %08lx r2: %08lx r3: %08lx\n", diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c index 2b23ef0..cebd32e 100644 --- a/arch/cris/arch-v32/kernel/process.c +++ b/arch/cris/arch-v32/kernel/process.c @@ -20,18 +20,12 @@ extern void stop_watchdog(void); -extern int cris_hlt_counter; - /* We use this if we don't have any better idle routine. */ void default_idle(void) { - local_irq_disable(); - if (!need_resched() && !cris_hlt_counter) { - /* Halt until exception. */ - __asm__ volatile("ei \n\t" - "halt "); - } - local_irq_enable(); + /* Halt until exception. */ + __asm__ volatile("ei \n\t" + "halt "); } /* @@ -170,6 +164,9 @@ get_wchan(struct task_struct *p) void show_regs(struct pt_regs * regs) { unsigned long usp = rdusp(); + + show_regs_print_info(KERN_DEFAULT); + printk("ERP: %08lx SRP: %08lx CCS: %08lx USP: %08lx MOF: %08lx\n", regs->erp, regs->srp, regs->ccs, usp, regs->mof); diff --git a/arch/cris/arch-v32/kernel/smp.c b/arch/cris/arch-v32/kernel/smp.c index 04a16ed..cdd1202 100644 --- a/arch/cris/arch-v32/kernel/smp.c +++ b/arch/cris/arch-v32/kernel/smp.c @@ -145,8 +145,6 @@ smp_boot_one_cpu(int cpuid, struct task_struct idle) * specific stuff such as the local timer and the MMU. */ void __init smp_callin(void) { - extern void cpu_idle(void); - int cpu = cpu_now_booting; reg_intr_vect_rw_mask vect_mask = {0}; @@ -170,7 +168,7 @@ void __init smp_callin(void) local_irq_enable(); set_cpu_online(cpu, true); - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } /* Stop execution on this CPU.*/ diff --git a/arch/cris/arch-v32/mach-a3/Makefile b/arch/cris/arch-v32/mach-a3/Makefile index d366e08..18a2271 100644 --- a/arch/cris/arch-v32/mach-a3/Makefile +++ b/arch/cris/arch-v32/mach-a3/Makefile @@ -3,7 +3,6 @@ # obj-y := dma.o pinmux.o io.o arbiter.o -obj-$(CONFIG_CPU_FREQ) += cpufreq.o clean: diff --git a/arch/cris/arch-v32/mach-a3/cpufreq.c b/arch/cris/arch-v32/mach-a3/cpufreq.c deleted file mode 100644 index ee391ec..0000000 --- a/arch/cris/arch-v32/mach-a3/cpufreq.c +++ /dev/null @@ -1,152 +0,0 @@ -#include <linux/init.h> -#include <linux/module.h> -#include <linux/cpufreq.h> -#include <hwregs/reg_map.h> -#include <hwregs/reg_rdwr.h> -#include <hwregs/clkgen_defs.h> -#include <hwregs/ddr2_defs.h> - -static int -cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val, - void *data); - -static struct notifier_block cris_sdram_freq_notifier_block = { - .notifier_call = cris_sdram_freq_notifier -}; - -static struct cpufreq_frequency_table cris_freq_table[] = { - {0x01, 6000}, - {0x02, 200000}, - {0, CPUFREQ_TABLE_END}, -}; - -static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu) -{ - reg_clkgen_rw_clk_ctrl clk_ctrl; - clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl); - return clk_ctrl.pll ? 200000 : 6000; -} - -static void cris_freq_set_cpu_state(unsigned int state) -{ - int i = 0; - struct cpufreq_freqs freqs; - reg_clkgen_rw_clk_ctrl clk_ctrl; - clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl); - -#ifdef CONFIG_SMP - for_each_present_cpu(i) -#endif - { - freqs.old = cris_freq_get_cpu_frequency(i); - freqs.new = cris_freq_table[state].frequency; - freqs.cpu = i; - } - - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - local_irq_disable(); - - /* Even though we may be SMP they will share the same clock - * so all settings are made on CPU0. */ - if (cris_freq_table[state].frequency == 200000) - clk_ctrl.pll = 1; - else - clk_ctrl.pll = 0; - REG_WR(clkgen, regi_clkgen, rw_clk_ctrl, clk_ctrl); - - local_irq_enable(); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); -}; - -static int cris_freq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]); -} - -static int cris_freq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int newstate = 0; - - if (cpufreq_frequency_table_target(policy, cris_freq_table, - target_freq, relation, &newstate)) - return -EINVAL; - - cris_freq_set_cpu_state(newstate); - - return 0; -} - -static int cris_freq_cpu_init(struct cpufreq_policy *policy) -{ - int result; - - /* cpuinfo and default policy values */ - policy->cpuinfo.transition_latency = 1000000; /* 1ms */ - policy->cur = cris_freq_get_cpu_frequency(0); - - result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table); - if (result) - return (result); - - cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu); - - return 0; -} - - -static int cris_freq_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - - -static struct freq_attr *cris_freq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - -static struct cpufreq_driver cris_freq_driver = { - .get = cris_freq_get_cpu_frequency, - .verify = cris_freq_verify, - .target = cris_freq_target, - .init = cris_freq_cpu_init, - .exit = cris_freq_cpu_exit, - .name = "cris_freq", - .owner = THIS_MODULE, - .attr = cris_freq_attr, -}; - -static int __init cris_freq_init(void) -{ - int ret; - ret = cpufreq_register_driver(&cris_freq_driver); - cpufreq_register_notifier(&cris_sdram_freq_notifier_block, - CPUFREQ_TRANSITION_NOTIFIER); - return ret; -} - -static int -cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val, - void *data) -{ - int i; - struct cpufreq_freqs *freqs = data; - if (val == CPUFREQ_PRECHANGE) { - reg_ddr2_rw_cfg cfg = - REG_RD(ddr2, regi_ddr2_ctrl, rw_cfg); - cfg.ref_interval = (freqs->new == 200000 ? 1560 : 46); - - if (freqs->new == 200000) - for (i = 0; i < 50000; i++); - REG_WR(bif_core, regi_bif_core, rw_sdram_timing, timing); - } - return 0; -} - - -module_init(cris_freq_init); diff --git a/arch/cris/arch-v32/mach-fs/Makefile b/arch/cris/arch-v32/mach-fs/Makefile index d366e08..18a2271 100644 --- a/arch/cris/arch-v32/mach-fs/Makefile +++ b/arch/cris/arch-v32/mach-fs/Makefile @@ -3,7 +3,6 @@ # obj-y := dma.o pinmux.o io.o arbiter.o -obj-$(CONFIG_CPU_FREQ) += cpufreq.o clean: diff --git a/arch/cris/arch-v32/mach-fs/cpufreq.c b/arch/cris/arch-v32/mach-fs/cpufreq.c deleted file mode 100644 index d92cf70..0000000 --- a/arch/cris/arch-v32/mach-fs/cpufreq.c +++ /dev/null @@ -1,145 +0,0 @@ -#include <linux/init.h> -#include <linux/module.h> -#include <linux/cpufreq.h> -#include <hwregs/reg_map.h> -#include <arch/hwregs/reg_rdwr.h> -#include <arch/hwregs/config_defs.h> -#include <arch/hwregs/bif_core_defs.h> - -static int -cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val, - void *data); - -static struct notifier_block cris_sdram_freq_notifier_block = { - .notifier_call = cris_sdram_freq_notifier -}; - -static struct cpufreq_frequency_table cris_freq_table[] = { - {0x01, 6000}, - {0x02, 200000}, - {0, CPUFREQ_TABLE_END}, -}; - -static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu) -{ - reg_config_rw_clk_ctrl clk_ctrl; - clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl); - return clk_ctrl.pll ? 200000 : 6000; -} - -static void cris_freq_set_cpu_state(unsigned int state) -{ - int i; - struct cpufreq_freqs freqs; - reg_config_rw_clk_ctrl clk_ctrl; - clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl); - - for_each_possible_cpu(i) { - freqs.old = cris_freq_get_cpu_frequency(i); - freqs.new = cris_freq_table[state].frequency; - freqs.cpu = i; - } - - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - local_irq_disable(); - - /* Even though we may be SMP they will share the same clock - * so all settings are made on CPU0. */ - if (cris_freq_table[state].frequency == 200000) - clk_ctrl.pll = 1; - else - clk_ctrl.pll = 0; - REG_WR(config, regi_config, rw_clk_ctrl, clk_ctrl); - - local_irq_enable(); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); -}; - -static int cris_freq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]); -} - -static int cris_freq_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) -{ - unsigned int newstate = 0; - - if (cpufreq_frequency_table_target - (policy, cris_freq_table, target_freq, relation, &newstate)) - return -EINVAL; - - cris_freq_set_cpu_state(newstate); - - return 0; -} - -static int cris_freq_cpu_init(struct cpufreq_policy *policy) -{ - int result; - - /* cpuinfo and default policy values */ - policy->cpuinfo.transition_latency = 1000000; /* 1ms */ - policy->cur = cris_freq_get_cpu_frequency(0); - - result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table); - if (result) - return (result); - - cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu); - - return 0; -} - -static int cris_freq_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static struct freq_attr *cris_freq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - -static struct cpufreq_driver cris_freq_driver = { - .get = cris_freq_get_cpu_frequency, - .verify = cris_freq_verify, - .target = cris_freq_target, - .init = cris_freq_cpu_init, - .exit = cris_freq_cpu_exit, - .name = "cris_freq", - .owner = THIS_MODULE, - .attr = cris_freq_attr, -}; - -static int __init cris_freq_init(void) -{ - int ret; - ret = cpufreq_register_driver(&cris_freq_driver); - cpufreq_register_notifier(&cris_sdram_freq_notifier_block, - CPUFREQ_TRANSITION_NOTIFIER); - return ret; -} - -static int -cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val, - void *data) -{ - int i; - struct cpufreq_freqs *freqs = data; - if (val == CPUFREQ_PRECHANGE) { - reg_bif_core_rw_sdram_timing timing = - REG_RD(bif_core, regi_bif_core, rw_sdram_timing); - timing.cpd = (freqs->new == 200000 ? 0 : 1); - - if (freqs->new == 200000) - for (i = 0; i < 50000; i++) ; - REG_WR(bif_core, regi_bif_core, rw_sdram_timing, timing); - } - return 0; -} - -module_init(cris_freq_init); diff --git a/arch/cris/include/asm/processor.h b/arch/cris/include/asm/processor.h index 675823f..c0a29b9 100644 --- a/arch/cris/include/asm/processor.h +++ b/arch/cris/include/asm/processor.h @@ -65,13 +65,6 @@ static inline void release_thread(struct task_struct *dead_task) #define cpu_relax() barrier() -/* - * disable hlt during certain critical i/o operations - */ -#define HAVE_DISABLE_HLT -void disable_hlt(void); -void enable_hlt(void); - void default_idle(void); #endif /* __ASM_CRIS_PROCESSOR_H */ diff --git a/arch/cris/include/asm/unistd.h b/arch/cris/include/asm/unistd.h index be57a98..0ff3f68 100644 --- a/arch/cris/include/asm/unistd.h +++ b/arch/cris/include/asm/unistd.h @@ -34,12 +34,4 @@ #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_CLONE -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") - #endif /* _ASM_CRIS_UNISTD_H_ */ diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c index 104ff4d..b78498e 100644 --- a/arch/cris/kernel/process.c +++ b/arch/cris/kernel/process.c @@ -29,59 +29,14 @@ //#define DEBUG -/* - * The hlt_counter, disable_hlt and enable_hlt is just here as a hook if - * there would ever be a halt sequence (for power save when idle) with - * some largish delay when halting or resuming *and* a driver that can't - * afford that delay. The hlt_counter would then be checked before - * executing the halt sequence, and the driver marks the unhaltable - * region by enable_hlt/disable_hlt. - */ - -int cris_hlt_counter=0; - -void disable_hlt(void) -{ - cris_hlt_counter++; -} - -EXPORT_SYMBOL(disable_hlt); - -void enable_hlt(void) -{ - cris_hlt_counter--; -} - -EXPORT_SYMBOL(enable_hlt); - extern void default_idle(void); void (*pm_power_off)(void); EXPORT_SYMBOL(pm_power_off); -/* - * 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) +void arch_cpu_idle(void) { - /* endless idle loop with no priority at all */ - while (1) { - rcu_idle_enter(); - while (!need_resched()) { - /* - * Mark this as an RCU critical section so that - * synchronize_kernel() in the unload path waits - * for our completion. - */ - default_idle(); - } - rcu_idle_exit(); - schedule_preempt_disabled(); - } + default_idle(); } void hard_reset_now (void); diff --git a/arch/cris/kernel/traps.c b/arch/cris/kernel/traps.c index a11ad32..0ffda73 100644 --- a/arch/cris/kernel/traps.c +++ b/arch/cris/kernel/traps.c @@ -147,13 +147,6 @@ show_stack(void) #endif void -dump_stack(void) -{ - show_stack(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); - -void set_nmi_handler(void (*handler)(struct pt_regs *)) { nmi_handler = handler; diff --git a/arch/cris/mm/init.c b/arch/cris/mm/init.c index d72ab58..9ac8094 100644 --- a/arch/cris/mm/init.c +++ b/arch/cris/mm/init.c @@ -12,12 +12,10 @@ #include <linux/init.h> #include <linux/bootmem.h> #include <asm/tlb.h> +#include <asm/sections.h> unsigned long empty_zero_page; -extern char _stext, _edata, _etext; /* From linkerscript */ -extern char __init_begin, __init_end; - void __init mem_init(void) { @@ -67,15 +65,5 @@ mem_init(void) void free_initmem(void) { - unsigned long addr; - - addr = (unsigned long)(&__init_begin); - for (; addr < (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_INFO "Freeing unused kernel memory: %luk freed\n", - (unsigned long)((&__init_end - &__init_begin) >> 10)); + free_initmem_default(0); } diff --git a/arch/frv/include/asm/unistd.h b/arch/frv/include/asm/unistd.h index 4cfcc7b..70ec729 100644 --- a/arch/frv/include/asm/unistd.h +++ b/arch/frv/include/asm/unistd.h @@ -31,14 +31,4 @@ #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_CLONE -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#ifndef cond_syscall -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") -#endif - #endif /* _ASM_UNISTD_H_ */ diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c index 23916b2..5d40aeb77 100644 --- a/arch/frv/kernel/process.c +++ b/arch/frv/kernel/process.c @@ -59,29 +59,12 @@ static void core_sleep_idle(void) mb(); } -void (*idle)(void) = core_sleep_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) +void arch_cpu_idle(void) { - /* endless idle loop with no priority at all */ - while (1) { - rcu_idle_enter(); - while (!need_resched()) { - check_pgt_cache(); - - if (!frv_dma_inprogress && idle) - idle(); - } - rcu_idle_exit(); - - schedule_preempt_disabled(); - } + if (!frv_dma_inprogress) + core_sleep_idle(); + else + local_irq_enable(); } void machine_restart(char * __unused) diff --git a/arch/frv/kernel/traps.c b/arch/frv/kernel/traps.c index 5cfd142..4bff48c 100644 --- a/arch/frv/kernel/traps.c +++ b/arch/frv/kernel/traps.c @@ -466,17 +466,6 @@ asmlinkage void compound_exception(unsigned long esfr1, BUG(); } /* end compound_exception() */ -/*****************************************************************************/ -/* - * The architecture-independent backtrace generator - */ -void dump_stack(void) -{ - show_stack(NULL, NULL); -} - -EXPORT_SYMBOL(dump_stack); - void show_stack(struct task_struct *task, unsigned long *sp) { } @@ -508,6 +497,7 @@ void show_regs(struct pt_regs *regs) int loop; printk("\n"); + show_regs_print_info(KERN_DEFAULT); printk("Frame: @%08lx [%s]\n", (unsigned long) regs, @@ -522,8 +512,6 @@ void show_regs(struct pt_regs *regs) else printk(" | "); } - - printk("Process %s (pid: %d)\n", current->comm, current->pid); } void die_if_kernel(const char *str, ...) diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c index 92e97b0..dee354f 100644 --- a/arch/frv/mm/init.c +++ b/arch/frv/mm/init.c @@ -122,7 +122,7 @@ void __init mem_init(void) #endif int codek = 0, datak = 0; - /* this will put all memory onto the freelists */ + /* this will put all low memory onto the freelists */ totalram_pages = free_all_bootmem(); #ifdef CONFIG_MMU @@ -131,14 +131,8 @@ void __init mem_init(void) datapages++; #ifdef CONFIG_HIGHMEM - for (pfn = num_physpages - 1; pfn >= num_mappedpages; pfn--) { - struct page *page = &mem_map[pfn]; - - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - totalram_pages++; - } + for (pfn = num_physpages - 1; pfn >= num_mappedpages; pfn--) + free_highmem_page(&mem_map[pfn]); #endif codek = ((unsigned long) &_etext - (unsigned long) &_stext) >> 10; @@ -168,21 +162,7 @@ void __init mem_init(void) void free_initmem(void) { #if defined(CONFIG_RAMKERNEL) && !defined(CONFIG_PROTECT_KERNEL) - unsigned long start, end, addr; - - start = PAGE_ALIGN((unsigned long) &__init_begin); /* round up */ - end = ((unsigned long) &__init_end) & PAGE_MASK; /* round down */ - - /* next to check that the page we free is not a partial page */ - for (addr = start; addr < end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } - - printk("Freeing unused kernel memory: %ldKiB freed (0x%lx - 0x%lx)\n", - (end - start) >> 10, start, end); + free_initmem_default(0); #endif } /* end free_initmem() */ @@ -193,14 +173,6 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void __init 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("Freeing initrd memory: %dKiB freed\n", (pages * PAGE_SIZE) >> 10); + free_reserved_area(start, end, 0, "initrd"); } /* end free_initrd_mem() */ #endif diff --git a/arch/h8300/include/asm/linkage.h b/arch/h8300/include/asm/linkage.h index 6f4df7d..1d81604 100644 --- a/arch/h8300/include/asm/linkage.h +++ b/arch/h8300/include/asm/linkage.h @@ -2,7 +2,5 @@ #define _H8300_LINKAGE_H #undef SYMBOL_NAME_LABEL -#undef SYMBOL_NAME #define SYMBOL_NAME_LABEL(_name_) _##_name_##: -#define SYMBOL_NAME(_name_) _##_name_ #endif diff --git a/arch/h8300/include/asm/unistd.h b/arch/h8300/include/asm/unistd.h index 6721856..ab671ec 100644 --- a/arch/h8300/include/asm/unistd.h +++ b/arch/h8300/include/asm/unistd.h @@ -33,11 +33,4 @@ #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_CLONE -/* - * "Conditional" syscalls - */ -#define cond_syscall(name) \ - asm (".weak\t_" #name "\n" \ - ".set\t_" #name ",_sys_ni_syscall"); - #endif /* _ASM_H8300_UNISTD_H_ */ diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c index b609f63..1a744ab 100644 --- a/arch/h8300/kernel/process.c +++ b/arch/h8300/kernel/process.c @@ -53,40 +53,13 @@ asmlinkage void ret_from_kernel_thread(void); * The idle loop on an H8/300.. */ #if !defined(CONFIG_H8300H_SIM) && !defined(CONFIG_H8S_SIM) -static void default_idle(void) +void arch_cpu_idle(void) { - local_irq_disable(); - if (!need_resched()) { - local_irq_enable(); - /* XXX: race here! What if need_resched() gets set now? */ - __asm__("sleep"); - } else - local_irq_enable(); -} -#else -static void default_idle(void) -{ - cpu_relax(); + local_irq_enable(); + /* XXX: race here! What if need_resched() gets set now? */ + __asm__("sleep"); } #endif -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) -{ - while (1) { - rcu_idle_enter(); - while (!need_resched()) - idle(); - rcu_idle_exit(); - schedule_preempt_disabled(); - } -} void machine_restart(char * __unused) { @@ -110,6 +83,8 @@ void machine_power_off(void) void show_regs(struct pt_regs * regs) { + show_regs_print_info(KERN_DEFAULT); + printk("\nPC: %08lx Status: %02x", regs->pc, regs->ccr); printk("\nORIG_ER0: %08lx ER0: %08lx ER1: %08lx", diff --git a/arch/h8300/kernel/traps.c b/arch/h8300/kernel/traps.c index 7833aa3..cfe494d 100644 --- a/arch/h8300/kernel/traps.c +++ b/arch/h8300/kernel/traps.c @@ -164,10 +164,3 @@ void show_trace_task(struct task_struct *tsk) { show_stack(tsk,(unsigned long *)tsk->thread.esp0); } - -void dump_stack(void) -{ - show_stack(NULL,NULL); -} - -EXPORT_SYMBOL(dump_stack); diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c index 981e250..ff349d7 100644 --- a/arch/h8300/mm/init.c +++ b/arch/h8300/mm/init.c @@ -139,7 +139,7 @@ void __init mem_init(void) start_mem = PAGE_ALIGN(start_mem); max_mapnr = num_physpages = MAP_NR(high_memory); - /* this will put all memory onto the freelists */ + /* this will put all low memory onto the freelists */ totalram_pages = free_all_bootmem(); codek = (_etext - _stext) >> 10; @@ -161,15 +161,7 @@ void __init mem_init(void) #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 ("Freeing initrd memory: %dk freed\n", pages); + free_reserved_area(start, end, 0, "initrd"); } #endif @@ -177,23 +169,7 @@ 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_INFO "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)); + free_initmem_default(0); #endif } diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index e4decc6..04dff5b 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -29,21 +29,17 @@ config HEXAGON select GENERIC_CLOCKEVENTS select GENERIC_CLOCKEVENTS_BROADCAST select MODULES_USE_ELF_RELA + select GENERIC_CPU_DEVICES + select GENERIC_KERNEL_THREAD + select GENERIC_KERNEL_EXECVE ---help--- Qualcomm Hexagon is a processor architecture designed for high performance and low power across a wide variety of applications. -config HEXAGON_ARCH_V1 - bool - -config HEXAGON_ARCH_V2 - bool - -config HEXAGON_ARCH_V3 - bool - -config HEXAGON_ARCH_V4 - bool +config HEXAGON_PHYS_OFFSET + def_bool y + ---help--- + Platforms that don't load the kernel at zero set this. config FRAME_POINTER def_bool y @@ -81,9 +77,6 @@ config RWSEM_GENERIC_SPINLOCK config RWSEM_XCHGADD_ALGORITHM def_bool y -config GENERIC_FIND_NEXT_BIT - def_bool y - config GENERIC_HWEIGHT def_bool y @@ -103,14 +96,14 @@ choice config HEXAGON_COMET bool "Comet Board" - select HEXAGON_ARCH_V2 ---help--- Support for the Comet platform. endchoice -config HEXAGON_VM - def_bool y +config HEXAGON_ARCH_VERSION + int "Architecture version" + default 2 config CMDLINE string "Default kernel command string" @@ -122,12 +115,6 @@ config CMDLINE minimum, you should specify the memory size and the root device (e.g., mem=64M root=/dev/nfs). -config HEXAGON_ANGEL_TRAPS - bool "Use Angel Traps" - default n - ---help--- - Enable angel debug traps (for printk's). - config SMP bool "Multi-Processing support" ---help--- diff --git a/arch/hexagon/Makefile b/arch/hexagon/Makefile index d00d900..207711a0 100644 --- a/arch/hexagon/Makefile +++ b/arch/hexagon/Makefile @@ -15,20 +15,9 @@ KBUILD_CFLAGS += -fno-short-enums # LDFLAGS_MODULE += -shared CFLAGS_MODULE += -mlong-calls -cflags-$(CONFIG_HEXAGON_ARCH_V1) += $(call cc-option,-mv1) -cflags-$(CONFIG_HEXAGON_ARCH_V2) += $(call cc-option,-mv2) -cflags-$(CONFIG_HEXAGON_ARCH_V3) += $(call cc-option,-mv3) -cflags-$(CONFIG_HEXAGON_ARCH_V4) += $(call cc-option,-mv4) - -aflags-$(CONFIG_HEXAGON_ARCH_V1) += $(call cc-option,-mv1) -aflags-$(CONFIG_HEXAGON_ARCH_V2) += $(call cc-option,-mv2) -aflags-$(CONFIG_HEXAGON_ARCH_V3) += $(call cc-option,-mv3) -aflags-$(CONFIG_HEXAGON_ARCH_V4) += $(call cc-option,-mv4) - -ldflags-$(CONFIG_HEXAGON_ARCH_V1) += $(call cc-option,-mv1) -ldflags-$(CONFIG_HEXAGON_ARCH_V2) += $(call cc-option,-mv2) -ldflags-$(CONFIG_HEXAGON_ARCH_V3) += $(call cc-option,-mv3) -ldflags-$(CONFIG_HEXAGON_ARCH_V4) += $(call cc-option,-mv4) +cflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION}) +aflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION}) +ldflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION}) KBUILD_CFLAGS += $(cflags-y) KBUILD_AFLAGS += $(aflags-y) diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild index bdb54ce..1da17ca 100644 --- a/arch/hexagon/include/asm/Kbuild +++ b/arch/hexagon/include/asm/Kbuild @@ -25,7 +25,6 @@ generic-y += kdebug.h generic-y += kmap_types.h generic-y += local64.h generic-y += local.h -generic-y += local.h generic-y += mman.h generic-y += msgbuf.h generic-y += pci.h @@ -41,6 +40,7 @@ generic-y += sembuf.h generic-y += shmbuf.h generic-y += shmparam.h generic-y += siginfo.h +generic-y += sizes.h generic-y += socket.h generic-y += sockios.h generic-y += statfs.h diff --git a/arch/hexagon/include/asm/atomic.h b/arch/hexagon/include/asm/atomic.h index 468fbb0..8a64ff2 100644 --- a/arch/hexagon/include/asm/atomic.h +++ b/arch/hexagon/include/asm/atomic.h @@ -1,7 +1,7 @@ /* * Atomic operations for the Hexagon architecture * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved. * * * This program is free software; you can redistribute it and/or modify @@ -117,35 +117,37 @@ static inline int atomic_sub_return(int i, atomic_t *v) #define atomic_sub(i, v) atomic_sub_return(i, (v)) /** - * atomic_add_unless - add unless the number is a given value + * __atomic_add_unless - add unless the number is a given value * @v: pointer to value * @a: amount to add * @u: unless value is equal to u * - * Returns 1 if the add happened, 0 if it didn't. + * Returns old value. + * */ + static inline int __atomic_add_unless(atomic_t *v, int a, int u) { - int output, __oldval; + int __oldval; + register int tmp; + asm volatile( "1: %0 = memw_locked(%2);" " {" " p3 = cmp.eq(%0, %4);" " if (p3.new) jump:nt 2f;" - " %0 = add(%0, %3);" - " %1 = #0;" + " %1 = add(%0, %3);" " }" - " memw_locked(%2, p3) = %0;" + " memw_locked(%2, p3) = %1;" " {" " if !p3 jump 1b;" - " %1 = #1;" " }" "2:" - : "=&r" (__oldval), "=&r" (output) + : "=&r" (__oldval), "=&r" (tmp) : "r" (v), "r" (a), "r" (u) : "memory", "p3" ); - return output; + return __oldval; } #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) diff --git a/arch/hexagon/include/asm/elf.h b/arch/hexagon/include/asm/elf.h index 1f14e08..e1b933a 100644 --- a/arch/hexagon/include/asm/elf.h +++ b/arch/hexagon/include/asm/elf.h @@ -1,7 +1,7 @@ /* * ELF definitions for the Hexagon architecture * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2012, The Linux Foundation. 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 and @@ -104,6 +104,16 @@ typedef unsigned long elf_fpregset_t; * Bypass the whole "regsets" thing for now and use the define. */ +#if CONFIG_HEXAGON_ARCH_VERSION >= 4 +#define CS_COPYREGS(DEST,REGS) \ +do {\ + DEST.cs0 = REGS->cs0;\ + DEST.cs1 = REGS->cs1;\ +} while (0) +#else +#define CS_COPYREGS(DEST,REGS) +#endif + #define ELF_CORE_COPY_REGS(DEST, REGS) \ do { \ DEST.r0 = REGS->r00; \ @@ -148,13 +158,12 @@ do { \ DEST.p3_0 = REGS->preds; \ DEST.gp = REGS->gp; \ DEST.ugp = REGS->ugp; \ - DEST.pc = pt_elr(REGS); \ + CS_COPYREGS(DEST,REGS); \ + DEST.pc = pt_elr(REGS); \ DEST.cause = pt_cause(REGS); \ DEST.badva = pt_badva(REGS); \ } while (0); - - /* * This is used to ensure we don't load something for the wrong architecture. * Checks the machine and ABI type. @@ -168,15 +177,15 @@ do { \ #define ELF_DATA ELFDATA2LSB #define ELF_ARCH EM_HEXAGON -#ifdef CONFIG_HEXAGON_ARCH_V2 +#if CONFIG_HEXAGON_ARCH_VERSION == 2 #define ELF_CORE_EFLAGS 0x1 #endif -#ifdef CONFIG_HEXAGON_ARCH_V3 +#if CONFIG_HEXAGON_ARCH_VERSION == 3 #define ELF_CORE_EFLAGS 0x2 #endif -#ifdef CONFIG_HEXAGON_ARCH_V4 +#if CONFIG_HEXAGON_ARCH_VERSION == 4 #define ELF_CORE_EFLAGS 0x3 #endif diff --git a/arch/hexagon/include/asm/hexagon_vm.h b/arch/hexagon/include/asm/hexagon_vm.h index c144bee..67bb6d6 100644 --- a/arch/hexagon/include/asm/hexagon_vm.h +++ b/arch/hexagon/include/asm/hexagon_vm.h @@ -1,7 +1,7 @@ /* * Declarations for to Hexagon Virtal Machine. * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2013, The Linux Foundation. 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 and @@ -31,10 +31,26 @@ * for tracing/debugging. */ -/* - * Lets make this stuff visible only if configured, - * so we can unconditionally include the file. - */ +#define HVM_TRAP1_VMVERSION 0 +#define HVM_TRAP1_VMRTE 1 +#define HVM_TRAP1_VMSETVEC 2 +#define HVM_TRAP1_VMSETIE 3 +#define HVM_TRAP1_VMGETIE 4 +#define HVM_TRAP1_VMINTOP 5 +#define HVM_TRAP1_VMCLRMAP 10 +#define HVM_TRAP1_VMNEWMAP 11 +#define HVM_TRAP1_FORMERLY_VMWIRE 12 +#define HVM_TRAP1_VMCACHE 13 +#define HVM_TRAP1_VMGETTIME 14 +#define HVM_TRAP1_VMSETTIME 15 +#define HVM_TRAP1_VMWAIT 16 +#define HVM_TRAP1_VMYIELD 17 +#define HVM_TRAP1_VMSTART 18 +#define HVM_TRAP1_VMSTOP 19 +#define HVM_TRAP1_VMVPID 20 +#define HVM_TRAP1_VMSETREGS 21 +#define HVM_TRAP1_VMGETREGS 22 +#define HVM_TRAP1_VMTIMEROP 24 #ifndef __ASSEMBLY__ @@ -175,31 +191,19 @@ static inline long __vmintop_clear(long i) #else /* Only assembly code should reference these */ -#define HVM_TRAP1_VMRTE 1 -#define HVM_TRAP1_VMSETVEC 2 -#define HVM_TRAP1_VMSETIE 3 -#define HVM_TRAP1_VMGETIE 4 -#define HVM_TRAP1_VMINTOP 5 -#define HVM_TRAP1_VMCLRMAP 10 -#define HVM_TRAP1_VMNEWMAP 11 -#define HVM_TRAP1_FORMERLY_VMWIRE 12 -#define HVM_TRAP1_VMCACHE 13 -#define HVM_TRAP1_VMGETTIME 14 -#define HVM_TRAP1_VMSETTIME 15 -#define HVM_TRAP1_VMWAIT 16 -#define HVM_TRAP1_VMYIELD 17 -#define HVM_TRAP1_VMSTART 18 -#define HVM_TRAP1_VMSTOP 19 -#define HVM_TRAP1_VMVPID 20 -#define HVM_TRAP1_VMSETREGS 21 -#define HVM_TRAP1_VMGETREGS 22 - #endif /* __ASSEMBLY__ */ /* * Constants for virtual instruction parameters and return values */ +/* vmnewmap arguments */ + +#define VM_TRANS_TYPE_LINEAR 0 +#define VM_TRANS_TYPE_TABLE 1 +#define VM_TLB_INVALIDATE_FALSE 0 +#define VM_TLB_INVALIDATE_TRUE 1 + /* vmsetie arguments */ #define VM_INT_DISABLE 0 @@ -224,6 +228,8 @@ static inline long __vmintop_clear(long i) #define HVM_VMEST_UM_MSK 1 #define HVM_VMEST_IE_SFT 30 #define HVM_VMEST_IE_MSK 1 +#define HVM_VMEST_SS_SFT 29 +#define HVM_VMEST_SS_MSK 1 #define HVM_VMEST_EVENTNUM_SFT 16 #define HVM_VMEST_EVENTNUM_MSK 0xff #define HVM_VMEST_CAUSE_SFT 0 @@ -260,6 +266,8 @@ static inline long __vmintop_clear(long i) #define HVM_GE_C_INVI 0x15 #define HVM_GE_C_PRIVI 0x1B #define HVM_GE_C_XMAL 0x1C +#define HVM_GE_C_WREG 0x1D +#define HVM_GE_C_PCAL 0x1E #define HVM_GE_C_RMAL 0x20 #define HVM_GE_C_WMAL 0x21 #define HVM_GE_C_RPROT 0x22 diff --git a/arch/hexagon/include/asm/io.h b/arch/hexagon/include/asm/io.h index e527cfe..1b7698e 100644 --- a/arch/hexagon/include/asm/io.h +++ b/arch/hexagon/include/asm/io.h @@ -1,7 +1,7 @@ /* * IO definitions for the Hexagon architecture * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2013, The Linux Foundation. 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 and @@ -40,6 +40,8 @@ #define IO_SPACE_LIMIT 0xffff #define _IO_BASE ((void __iomem *)0xfe000000) +#define IOMEM(x) ((void __force __iomem *)(x)) + extern int remap_area_pages(unsigned long start, unsigned long phys_addr, unsigned long end, unsigned long flags); @@ -176,6 +178,18 @@ static inline void writel(u32 data, volatile void __iomem *addr) #define __raw_readl readl /* + * http://comments.gmane.org/gmane.linux.ports.arm.kernel/117626 + */ + +#define readb_relaxed __raw_readb +#define readw_relaxed __raw_readw +#define readl_relaxed __raw_readl + +#define writeb_relaxed __raw_writeb +#define writew_relaxed __raw_writew +#define writel_relaxed __raw_writel + +/* * Need an mtype somewhere in here, for cache type deals? * This is probably too long for an inline. */ diff --git a/arch/hexagon/include/asm/mem-layout.h b/arch/hexagon/include/asm/mem-layout.h index af16e97..60556f8 100644 --- a/arch/hexagon/include/asm/mem-layout.h +++ b/arch/hexagon/include/asm/mem-layout.h @@ -1,7 +1,7 @@ /* * Memory layout definitions for the Hexagon architecture * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2013, The Linux Foundation. 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 and @@ -32,16 +32,25 @@ #define PAGE_OFFSET _AC(0xc0000000, UL) /* - * LOAD_ADDRESS is the physical/linear address of where in memory - * the kernel gets loaded. The 12 least significant bits must be zero (0) - * due to limitations on setting the EVB - * + * Compiling for a platform that needs a crazy physical offset + * (like if the memory starts at 1GB and up) means we need + * an actual PHYS_OFFSET. Should be set up in head.S. */ -#ifndef LOAD_ADDRESS -#define LOAD_ADDRESS 0x00000000 +#ifdef CONFIG_HEXAGON_PHYS_OFFSET +#ifndef __ASSEMBLY__ +extern unsigned long __phys_offset; +#endif +#define PHYS_OFFSET __phys_offset +#endif + +#ifndef PHYS_OFFSET +#define PHYS_OFFSET 0 #endif +#define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT) +#define ARCH_PFN_OFFSET PHYS_PFN_OFFSET + #define TASK_SIZE (PAGE_OFFSET) /* not sure how these are used yet */ @@ -55,7 +64,7 @@ enum fixed_addresses { __end_of_fixed_addresses }; -#define MIN_KERNEL_SEG 0x300 /* From 0xc0000000 */ +#define MIN_KERNEL_SEG (PAGE_OFFSET >> PGDIR_SHIFT) /* L1 shift is 22 bits */ extern int max_kernel_seg; /* @@ -63,8 +72,7 @@ extern int max_kernel_seg; * supposed to be based on the amount of physical memory available */ -#define VMALLOC_START (PAGE_OFFSET + VMALLOC_OFFSET + \ - (unsigned long)high_memory) +#define VMALLOC_START ((unsigned long) __va(high_memory + VMALLOC_OFFSET)) /* Gap between physical ram and vmalloc space for guard purposes. */ #define VMALLOC_OFFSET PAGE_SIZE diff --git a/arch/hexagon/include/asm/page.h b/arch/hexagon/include/asm/page.h index 692adc213..93f5669 100644 --- a/arch/hexagon/include/asm/page.h +++ b/arch/hexagon/include/asm/page.h @@ -1,7 +1,7 @@ /* * Page management definitions for the Hexagon architecture * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2013, The Linux Foundation. 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 and @@ -96,8 +96,8 @@ typedef struct page *pgtable_t; * MIPS says they're only used during mem_init. * also, check if we need a PHYS_OFFSET. */ -#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET) -#define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET)) +#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET + PHYS_OFFSET) +#define __va(x) ((void *)((unsigned long)(x) - PHYS_OFFSET + PAGE_OFFSET)) /* The "page frame" descriptor is defined in linux/mm.h */ struct page; @@ -140,6 +140,11 @@ static inline void clear_page(void *page) */ #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) +#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) +#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) + +#define page_to_virt(page) __va(page_to_phys(page)) + /* * For port to Hexagon Virtual Machine, MAYBE we check for attempts * to reference reserved HVM space, but in any case, the VM will be @@ -147,6 +152,7 @@ static inline void clear_page(void *page) */ #define kern_addr_valid(addr) (1) +#include <asm/mem-layout.h> #include <asm-generic/memory_model.h> /* XXX Todo: implement assembly-optimized version of getorder. */ #include <asm-generic/getorder.h> diff --git a/arch/hexagon/include/asm/processor.h b/arch/hexagon/include/asm/processor.h index 6dd5d37..45a8254 100644 --- a/arch/hexagon/include/asm/processor.h +++ b/arch/hexagon/include/asm/processor.h @@ -1,7 +1,7 @@ /* * Process/processor support for the Hexagon architecture * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2012, The Linux Foundation. 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 and @@ -100,12 +100,49 @@ extern unsigned long get_wchan(struct task_struct *p); */ struct hexagon_switch_stack { - unsigned long long r1716; - unsigned long long r1918; - unsigned long long r2120; - unsigned long long r2322; - unsigned long long r2524; - unsigned long long r2726; + union { + struct { + unsigned long r16; + unsigned long r17; + }; + unsigned long long r1716; + }; + union { + struct { + unsigned long r18; + unsigned long r19; + }; + unsigned long long r1918; + }; + union { + struct { + unsigned long r20; + unsigned long r21; + }; + unsigned long long r2120; + }; + union { + struct { + unsigned long r22; + unsigned long r23; + }; + unsigned long long r2322; + }; + union { + struct { + unsigned long r24; + unsigned long r25; + }; + unsigned long long r2524; + }; + union { + struct { + unsigned long r26; + unsigned long r27; + }; + unsigned long long r2726; + }; + unsigned long fp; unsigned long lr; }; diff --git a/arch/hexagon/include/asm/vm_mmu.h b/arch/hexagon/include/asm/vm_mmu.h index 9a94de7..096537d 100644 --- a/arch/hexagon/include/asm/vm_mmu.h +++ b/arch/hexagon/include/asm/vm_mmu.h @@ -1,7 +1,7 @@ /* * Hexagon VM page table entry definitions * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2011,2013 The Linux Foundation. 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 and @@ -68,14 +68,13 @@ #define __HEXAGON_C_WB 0x0 /* Write-back, no L2 */ #define __HEXAGON_C_WT 0x1 /* Write-through, no L2 */ +#define __HEXAGON_C_UNC 0x6 /* Uncached memory */ +#if CONFIG_HEXAGON_ARCH_VERSION >= 2 #define __HEXAGON_C_DEV 0x4 /* Device register space */ -#define __HEXAGON_C_WT_L2 0x5 /* Write-through, with L2 */ -/* this really should be #if CONFIG_HEXAGON_ARCH = 2 but that's not defined */ -#if defined(CONFIG_HEXAGON_COMET) || defined(CONFIG_QDSP6_ST1) -#define __HEXAGON_C_UNC __HEXAGON_C_DEV #else -#define __HEXAGON_C_UNC 0x6 /* Uncached memory */ +#define __HEXAGON_C_DEV __HEXAGON_C_UNC #endif +#define __HEXAGON_C_WT_L2 0x5 /* Write-through, with L2 */ #define __HEXAGON_C_WB_L2 0x7 /* Write-back, with L2 */ /* diff --git a/arch/hexagon/include/uapi/asm/ptrace.h b/arch/hexagon/include/uapi/asm/ptrace.h index 1ffce0c..065e5b3 100644 --- a/arch/hexagon/include/uapi/asm/ptrace.h +++ b/arch/hexagon/include/uapi/asm/ptrace.h @@ -36,4 +36,9 @@ extern const char *regs_query_register_name(unsigned int offset); ((struct pt_regs *) \ ((unsigned long)current_thread_info() + THREAD_SIZE) - 1) +#if CONFIG_HEXAGON_ARCH_VERSION >= 4 +#define arch_has_single_step() (1) +#endif + + #endif diff --git a/arch/hexagon/include/uapi/asm/registers.h b/arch/hexagon/include/uapi/asm/registers.h index c20406f..487d6ce 100644 --- a/arch/hexagon/include/uapi/asm/registers.h +++ b/arch/hexagon/include/uapi/asm/registers.h @@ -57,10 +57,17 @@ struct pt_regs { }; union { struct { - unsigned long gp; unsigned long ugp; + unsigned long gp; }; - long long int ugpgp; + long long int gpugp; + }; + union { + struct { + unsigned long cs0; + unsigned long cs1; + }; + long long int cs1cs0; }; /* * Be extremely careful with rearranging these, if at all. Some code @@ -204,9 +211,11 @@ struct pt_regs { #define pt_psp(regs) ((regs)->hvmer.vmpsp) #define pt_badva(regs) ((regs)->hvmer.vmbadva) +#define pt_set_singlestep(regs) ((regs)->hvmer.vmest |= (1<<HVM_VMEST_SS_SFT)) +#define pt_clr_singlestep(regs) ((regs)->hvmer.vmest &= ~(1<<HVM_VMEST_SS_SFT)) + #define pt_set_rte_sp(regs, sp) do {\ - pt_psp(regs) = (sp);\ - (regs)->SP = (unsigned long) &((regs)->hvmer);\ + pt_psp(regs) = (regs)->SP = (sp);\ } while (0) #define pt_set_kmode(regs) \ diff --git a/arch/hexagon/include/uapi/asm/signal.h b/arch/hexagon/include/uapi/asm/signal.h index 9395568..98106e5 100644 --- a/arch/hexagon/include/uapi/asm/signal.h +++ b/arch/hexagon/include/uapi/asm/signal.h @@ -19,8 +19,12 @@ #ifndef _ASM_SIGNAL_H #define _ASM_SIGNAL_H +#include <uapi/asm/registers.h> + extern unsigned long __rt_sigtramp_template[2]; +void do_signal(struct pt_regs *regs); + #include <asm-generic/signal.h> #endif diff --git a/arch/hexagon/include/uapi/asm/unistd.h b/arch/hexagon/include/uapi/asm/unistd.h index 4a87cc4..ffee405d 100644 --- a/arch/hexagon/include/uapi/asm/unistd.h +++ b/arch/hexagon/include/uapi/asm/unistd.h @@ -27,6 +27,9 @@ */ #define sys_mmap2 sys_mmap_pgoff +#define __ARCH_WANT_SYS_EXECVE #define __ARCH_WANT_SYS_CLONE +#define __ARCH_WANT_SYS_VFORK +#define __ARCH_WANT_SYS_FORK #include <asm-generic/unistd.h> diff --git a/arch/hexagon/include/uapi/asm/user.h b/arch/hexagon/include/uapi/asm/user.h index cef13ee..3dae94d 100644 --- a/arch/hexagon/include/uapi/asm/user.h +++ b/arch/hexagon/include/uapi/asm/user.h @@ -55,9 +55,15 @@ struct user_regs_struct { unsigned long pc; unsigned long cause; unsigned long badva; +#if CONFIG_HEXAGON_ARCH_VERSION < 4 unsigned long pad1; /* pad out to 48 words total */ unsigned long pad2; /* pad out to 48 words total */ unsigned long pad3; /* pad out to 48 words total */ +#else + unsigned long cs0; + unsigned long cs1; + unsigned long pad1; /* pad out to 48 words total */ +#endif }; #endif diff --git a/arch/hexagon/kernel/Makefile b/arch/hexagon/kernel/Makefile index 6c19501..29fc933 100644 --- a/arch/hexagon/kernel/Makefile +++ b/arch/hexagon/kernel/Makefile @@ -1,6 +1,6 @@ extra-y := head.o vmlinux.lds -obj-$(CONFIG_SMP) += smp.o topology.o +obj-$(CONFIG_SMP) += smp.o obj-y += setup.o irq_cpu.o traps.o syscalltab.o signal.o time.o obj-y += process.o trampoline.o reset.o ptrace.o vdso.o diff --git a/arch/hexagon/kernel/asm-offsets.c b/arch/hexagon/kernel/asm-offsets.c index 2d5e84d..308be68 100644 --- a/arch/hexagon/kernel/asm-offsets.c +++ b/arch/hexagon/kernel/asm-offsets.c @@ -5,7 +5,7 @@ * Kevin Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com * Copyright (C) 2000 MIPS Technologies, Inc. * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2012, The Linux Foundation. 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 and @@ -44,7 +44,8 @@ int main(void) COMMENT("Hexagon pt_regs definitions"); OFFSET(_PT_SYSCALL_NR, pt_regs, syscall_nr); - OFFSET(_PT_UGPGP, pt_regs, ugpgp); + OFFSET(_PT_GPUGP, pt_regs, gpugp); + OFFSET(_PT_CS1CS0, pt_regs, cs1cs0); OFFSET(_PT_R3130, pt_regs, r3130); OFFSET(_PT_R2928, pt_regs, r2928); OFFSET(_PT_R2726, pt_regs, r2726); diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c index 65c7bdc..b74f9ba 100644 --- a/arch/hexagon/kernel/dma.c +++ b/arch/hexagon/kernel/dma.c @@ -1,7 +1,7 @@ /* * DMA implementation for Hexagon * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2012, The Linux Foundation. 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 and @@ -23,12 +23,18 @@ #include <linux/genalloc.h> #include <asm/dma-mapping.h> #include <linux/module.h> +#include <asm/page.h> struct dma_map_ops *dma_ops; EXPORT_SYMBOL(dma_ops); int bad_dma_address; /* globals are automatically initialized to zero */ +static inline void *dma_addr_to_virt(dma_addr_t dma_addr) +{ + return phys_to_virt((unsigned long) dma_addr); +} + int dma_supported(struct device *dev, u64 mask) { if (mask == DMA_BIT_MASK(32)) @@ -60,6 +66,12 @@ static void *hexagon_dma_alloc_coherent(struct device *dev, size_t size, { void *ret; + /* + * Our max_low_pfn should have been backed off by 16MB in + * mm/init.c to create DMA coherent space. Use that as the VA + * for the pool. + */ + if (coherent_pool == NULL) { coherent_pool = gen_pool_create(PAGE_SHIFT, -1); @@ -67,7 +79,7 @@ static void *hexagon_dma_alloc_coherent(struct device *dev, size_t size, panic("Can't create %s() memory pool!", __func__); else gen_pool_add(coherent_pool, - (PAGE_OFFSET + (max_low_pfn << PAGE_SHIFT)), + pfn_to_virt(max_low_pfn), hexagon_coherent_pool_size, -1); } @@ -75,7 +87,7 @@ static void *hexagon_dma_alloc_coherent(struct device *dev, size_t size, if (ret) { memset(ret, 0, size); - *dma_addr = (dma_addr_t) (ret - PAGE_OFFSET); + *dma_addr = (dma_addr_t) virt_to_phys(ret); } else *dma_addr = ~0; @@ -118,8 +130,8 @@ static int hexagon_map_sg(struct device *hwdev, struct scatterlist *sg, s->dma_length = s->length; - flush_dcache_range(PAGE_OFFSET + s->dma_address, - PAGE_OFFSET + s->dma_address + s->length); + flush_dcache_range(dma_addr_to_virt(s->dma_address), + dma_addr_to_virt(s->dma_address + s->length)); } return nents; @@ -149,11 +161,6 @@ static inline void dma_sync(void *addr, size_t size, } } -static inline void *dma_addr_to_virt(dma_addr_t dma_addr) -{ - return phys_to_virt((unsigned long) dma_addr); -} - /** * hexagon_map_page() - maps an address for device DMA * @dev: pointer to DMA device diff --git a/arch/hexagon/kernel/head.S b/arch/hexagon/kernel/head.S index d859402..b9b63d0 100644 --- a/arch/hexagon/kernel/head.S +++ b/arch/hexagon/kernel/head.S @@ -1,7 +1,7 @@ /* * Early kernel startup code for Hexagon * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved. * * * This program is free software; you can redistribute it and/or modify @@ -25,6 +25,9 @@ #include <asm/mem-layout.h> #include <asm/vm_mmu.h> #include <asm/page.h> +#include <asm/hexagon_vm.h> + +#define SEGTABLE_ENTRIES #0x0e0 __INIT ENTRY(stext) @@ -43,40 +46,93 @@ ENTRY(stext) * Symbol is kernel segment address, but we need * the logical/physical address. */ - r24 = asl(r24, #2) - r24 = lsr(r24, #2) + r25 = pc; + r2.h = #0xffc0; + r2.l = #0x0000; + r25 = and(r2,r25); /* R25 holds PHYS_OFFSET now */ + r1.h = #HI(PAGE_OFFSET); + r1.l = #LO(PAGE_OFFSET); + r24 = sub(r24,r1); /* swapper_pg_dir - PAGE_OFFSET */ + r24 = add(r24,r25); /* + PHYS_OFFSET */ - r0 = r24 + r0 = r24; /* aka __pa(swapper_pg_dir) */ /* - * Initialize a 16MB PTE to make the virtual and physical + * Initialize page dir to make the virtual and physical * addresses where the kernel was loaded be identical. + * Done in 4MB chunks. */ #define PTE_BITS ( __HVM_PTE_R | __HVM_PTE_W | __HVM_PTE_X \ | __HEXAGON_C_WB_L2 << 6 \ | __HVM_PDE_S_4MB) - r1 = pc - r2.H = #0xffc0 - r2.L = #0x0000 - r1 = and(r1,r2) /* round PC to 4MB boundary */ + /* + * Get number of VA=PA entries; only really needed for jump + * to hyperspace; gets blown away immediately after + */ + + { + r1.l = #LO(_end); + r2.l = #LO(stext); + r3 = #1; + } + { + r1.h = #HI(_end); + r2.h = #HI(stext); + r3 = asl(r3, #22); + } + { + r1 = sub(r1, r2); + r3 = add(r3, #-1); + } /* r1 = _end - stext */ + r1 = add(r1, r3); /* + (4M-1) */ + r26 = lsr(r1, #22); /* / 4M = # of entries */ + + r1 = r25; + r2.h = #0xffc0; + r2.l = #0x0000; /* round back down to 4MB boundary */ + r1 = and(r1,r2); r2 = lsr(r1, #22) /* 4MB page number */ r2 = asl(r2, #2) /* times sizeof(PTE) (4bytes) */ r0 = add(r0,r2) /* r0 = address of correct PTE */ r2 = #PTE_BITS r1 = add(r1,r2) /* r1 = 4MB PTE for the first entry */ r2.h = #0x0040 - r2.l = #0x0000 /* 4MB */ - memw(r0 ++ #4) = r1 - r1 = add(r1, r2) + r2.l = #0x0000 /* 4MB increments */ + loop0(1f,r26); +1: memw(r0 ++ #4) = r1 + { r1 = add(r1, r2); } :endloop0 + + /* Also need to overwrite the initial 0xc0000000 entries */ + /* PAGE_OFFSET >> (4MB shift - 4 bytes per entry shift) */ + R1.H = #HI(PAGE_OFFSET >> (22 - 2)) + R1.L = #LO(PAGE_OFFSET >> (22 - 2)) + + r0 = add(r1, r24); /* advance to 0xc0000000 entry */ + r1 = r25; + r2.h = #0xffc0; + r2.l = #0x0000; /* round back down to 4MB boundary */ + r1 = and(r1,r2); /* for huge page */ + r2 = #PTE_BITS + r1 = add(r1,r2); + r2.h = #0x0040 + r2.l = #0x0000 /* 4MB increments */ - r0 = r24 + loop0(1f,SEGTABLE_ENTRIES); +1: + memw(r0 ++ #4) = r1; + { r1 = add(r1,r2); } :endloop0 + + r0 = r24; /* * The subroutine wrapper around the virtual instruction touches * no memory, so we should be able to use it even here. + * Note that in this version, R1 and R2 get "clobbered"; see + * vm_ops.S */ + r1 = #VM_TRANS_TYPE_TABLE call __vmnewmap; /* Jump into virtual address range. */ @@ -90,17 +146,29 @@ ENTRY(stext) __head_s_vaddr_target: /* * Tear down VA=PA translation now that we are running - * in the desgnated kernel segments. + * in kernel virtual space. */ r0 = #__HVM_PDE_S_INVALID - r1 = r24 - loop0(1f,#0x100) + + r1.h = #0xffc0; + r1.l = #0x0000; + r2 = r25; /* phys_offset */ + r2 = and(r1,r2); + + r1.l = #lo(swapper_pg_dir) + r1.h = #hi(swapper_pg_dir) + r2 = lsr(r2, #22) /* 4MB page number */ + r2 = asl(r2, #2) /* times sizeof(PTE) (4bytes) */ + r1 = add(r1,r2); + loop0(1f,r26) + 1: { memw(R1 ++ #4) = R0 }:endloop0 r0 = r24 + r1 = #VM_TRANS_TYPE_TABLE call __vmnewmap /* Go ahead and install the trap0 return so angel calls work */ @@ -143,6 +211,13 @@ __head_s_vaddr_target: r2 = sub(r2,r0); call memset; + /* Set PHYS_OFFSET; should be in R25 */ +#ifdef CONFIG_HEXAGON_PHYS_OFFSET + r0.l = #LO(__phys_offset); + r0.h = #HI(__phys_offset); + memw(r0) = r25; +#endif + /* Time to make the doughnuts. */ call start_kernel diff --git a/arch/hexagon/kernel/kgdb.c b/arch/hexagon/kernel/kgdb.c index 3446453..82d5c25 100644 --- a/arch/hexagon/kernel/kgdb.c +++ b/arch/hexagon/kernel/kgdb.c @@ -1,7 +1,7 @@ /* * arch/hexagon/kernel/kgdb.c - Hexagon KGDB Support * - * Copyright (c) 2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2011-2012, The Linux Foundation. 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 and @@ -70,6 +70,8 @@ struct dbg_reg_def_t dbg_reg_def[DBG_MAX_REG_NUM] = { { "lc1", GDB_SIZEOF_REG, offsetof(struct pt_regs, lc1)}, { " gp", GDB_SIZEOF_REG, offsetof(struct pt_regs, gp)}, { "ugp", GDB_SIZEOF_REG, offsetof(struct pt_regs, ugp)}, + { "cs0", GDB_SIZEOF_REG, offsetof(struct pt_regs, cs0)}, + { "cs1", GDB_SIZEOF_REG, offsetof(struct pt_regs, cs1)}, { "psp", GDB_SIZEOF_REG, offsetof(struct pt_regs, hvmer.vmpsp)}, { "elr", GDB_SIZEOF_REG, offsetof(struct pt_regs, hvmer.vmel)}, { "est", GDB_SIZEOF_REG, offsetof(struct pt_regs, hvmer.vmest)}, diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c index 06ae9ff..0a0dd5c 100644 --- a/arch/hexagon/kernel/process.c +++ b/arch/hexagon/kernel/process.c @@ -24,6 +24,7 @@ #include <linux/tick.h> #include <linux/uaccess.h> #include <linux/slab.h> +#include <linux/tracehook.h> /* * Program thread launch. Often defined as a macro in processor.h, @@ -51,28 +52,11 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp) * If hardware or VM offer wait termination even though interrupts * are disabled. */ -static void default_idle(void) +void arch_cpu_idle(void) { __vmwait(); -} - -void (*idle_sleep)(void) = default_idle; - -void cpu_idle(void) -{ - while (1) { - tick_nohz_idle_enter(); - local_irq_disable(); - while (!need_resched()) { - idle_sleep(); - /* interrupts wake us up, but aren't serviced */ - local_irq_enable(); /* service interrupt */ - local_irq_disable(); - } - local_irq_enable(); - tick_nohz_idle_exit(); - schedule(); - } + /* interrupts wake us up, but irqs are still disabled */ + local_irq_enable(); } /* @@ -112,7 +96,8 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, if (unlikely(p->flags & PF_KTHREAD)) { memset(childregs, 0, sizeof(struct pt_regs)); /* r24 <- fn, r25 <- arg */ - ss->r2524 = usp | ((u64)arg << 32); + ss->r24 = usp; + ss->r25 = arg; pt_set_kmode(childregs); return 0; } @@ -202,3 +187,41 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu) { return 0; } + + +/* + * Called on the exit path of event entry; see vm_entry.S + * + * Interrupts will already be disabled. + * + * Returns 0 if there's no need to re-check for more work. + */ + +int do_work_pending(struct pt_regs *regs, u32 thread_info_flags) +{ + if (!(thread_info_flags & _TIF_WORK_MASK)) { + return 0; + } /* shortcut -- no work to be done */ + + local_irq_enable(); + + if (thread_info_flags & _TIF_NEED_RESCHED) { + schedule(); + return 1; + } + + if (thread_info_flags & _TIF_SIGPENDING) { + do_signal(regs); + return 1; + } + + if (thread_info_flags & _TIF_NOTIFY_RESUME) { + clear_thread_flag(TIF_NOTIFY_RESUME); + tracehook_notify_resume(regs); + return 1; + } + + /* Should not even reach here */ + panic("%s: bad thread_info flags 0x%08x\n", __func__, + thread_info_flags); +} diff --git a/arch/hexagon/kernel/ptrace.c b/arch/hexagon/kernel/ptrace.c index 670b1b0..de829eb 100644 --- a/arch/hexagon/kernel/ptrace.c +++ b/arch/hexagon/kernel/ptrace.c @@ -1,7 +1,7 @@ /* * Ptrace support for Hexagon * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2013, The Linux Foundation. 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 and @@ -32,6 +32,21 @@ #include <asm/user.h> +#if arch_has_single_step() +/* Both called from ptrace_resume */ +void user_enable_single_step(struct task_struct *child) +{ + pt_set_singlestep(task_pt_regs(child)); + set_tsk_thread_flag(child, TIF_SINGLESTEP); +} + +void user_disable_single_step(struct task_struct *child) +{ + pt_clr_singlestep(task_pt_regs(child)); + clear_tsk_thread_flag(child, TIF_SINGLESTEP); +} +#endif + static int genregs_get(struct task_struct *target, const struct user_regset *regset, unsigned int pos, unsigned int count, @@ -76,6 +91,10 @@ static int genregs_get(struct task_struct *target, dummy = pt_cause(regs); ONEXT(&dummy, cause); ONEXT(&pt_badva(regs), badva); +#if CONFIG_HEXAGON_ARCH_VERSION >=4 + ONEXT(®s->cs0, cs0); + ONEXT(®s->cs1, cs1); +#endif /* Pad the rest with zeros, if needed */ if (!ret) @@ -123,6 +142,11 @@ static int genregs_set(struct task_struct *target, INEXT(&bucket, cause); INEXT(&bucket, badva); +#if CONFIG_HEXAGON_ARCH_VERSION >=4 + INEXT(®s->cs0, cs0); + INEXT(®s->cs1, cs1); +#endif + /* Ignore the rest, if needed */ if (!ret) ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, diff --git a/arch/hexagon/kernel/setup.c b/arch/hexagon/kernel/setup.c index 94a3878..bfe1331 100644 --- a/arch/hexagon/kernel/setup.c +++ b/arch/hexagon/kernel/setup.c @@ -1,7 +1,7 @@ /* * Arch related setup for Hexagon * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2013, The Linux Foundation. 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 and @@ -68,6 +68,8 @@ void __init setup_arch(char **cmdline_p) */ __vmsetvec(_K_VM_event_vector); + printk(KERN_INFO "PHYS_OFFSET=0x%08x\n", PHYS_OFFSET); + /* * Simulator has a few differences from the hardware. * For now, check uninitialized-but-mapped memory @@ -128,6 +130,11 @@ static int show_cpuinfo(struct seq_file *m, void *v) { int cpu = (unsigned long) v - 1; +#ifdef CONFIG_SMP + if (!cpu_online(cpu)) + return 0; +#endif + seq_printf(m, "processor\t: %d\n", cpu); seq_printf(m, "model name\t: Hexagon Virtual Machine\n"); seq_printf(m, "BogoMips\t: %lu.%02lu\n", diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c index 60fa2ca..d7c7387 100644 --- a/arch/hexagon/kernel/signal.c +++ b/arch/hexagon/kernel/signal.c @@ -1,7 +1,7 @@ /* * Signal support for Hexagon processor * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2012, The Linux Foundation. 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 and @@ -41,6 +41,10 @@ static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, { unsigned long sp = regs->r29; + /* check if we would overflow the alt stack */ + if (on_sig_stack(sp) && !likely(on_sig_stack(sp - frame_size))) + return (void __user __force *)-1UL; + /* Switch to signal stack if appropriate */ if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags(sp) == 0)) sp = current->sas_ss_sp + current->sas_ss_size; @@ -66,7 +70,10 @@ static int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) err |= __put_user(regs->preds, &sc->sc_regs.p3_0); err |= __put_user(regs->gp, &sc->sc_regs.gp); err |= __put_user(regs->ugp, &sc->sc_regs.ugp); - +#if CONFIG_HEXAGON_ARCH_VERSION >= 4 + err |= __put_user(regs->cs0, &sc->sc_regs.cs0); + err |= __put_user(regs->cs1, &sc->sc_regs.cs1); +#endif tmp = pt_elr(regs); err |= __put_user(tmp, &sc->sc_regs.pc); tmp = pt_cause(regs); err |= __put_user(tmp, &sc->sc_regs.cause); tmp = pt_badva(regs); err |= __put_user(tmp, &sc->sc_regs.badva); @@ -93,7 +100,10 @@ static int restore_sigcontext(struct pt_regs *regs, err |= __get_user(regs->preds, &sc->sc_regs.p3_0); err |= __get_user(regs->gp, &sc->sc_regs.gp); err |= __get_user(regs->ugp, &sc->sc_regs.ugp); - +#if CONFIG_HEXAGON_ARCH_VERSION >= 4 + err |= __get_user(regs->cs0, &sc->sc_regs.cs0); + err |= __get_user(regs->cs1, &sc->sc_regs.cs1); +#endif err |= __get_user(tmp, &sc->sc_regs.pc); pt_set_elr(regs, tmp); return err; @@ -193,7 +203,7 @@ static void handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka, /* * Called from return-from-event code. */ -static void do_signal(struct pt_regs *regs) +void do_signal(struct pt_regs *regs) { struct k_sigaction sigact; siginfo_t info; @@ -210,8 +220,9 @@ static void do_signal(struct pt_regs *regs) } /* - * If we came from a system call, handle the restart. + * No (more) signals; if we came from a system call, handle the restart. */ + if (regs->syscall_nr >= 0) { switch (regs->r00) { case -ERESTARTNOHAND: @@ -234,17 +245,6 @@ no_restart: restore_saved_sigmask(); } -void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags) -{ - if (thread_info_flags & _TIF_SIGPENDING) - do_signal(regs); - - if (thread_info_flags & _TIF_NOTIFY_RESUME) { - clear_thread_flag(TIF_NOTIFY_RESUME); - tracehook_notify_resume(regs); - } -} - /* * Architecture-specific wrappers for signal-related system calls */ @@ -272,21 +272,12 @@ asmlinkage int sys_rt_sigreturn(void) /* Restore the user's stack as well */ pt_psp(regs) = regs->r29; - /* - * Leave a trace in the stack frame that this was a sigreturn. - * If the system call is to replay, we've already restored the - * number in the GPR slot and it will be regenerated on the - * new system call trap entry. Note that if restore_sigcontext() - * did something other than a bulk copy of the pt_regs struct, - * we could avoid this assignment by simply not overwriting - * regs->syscall_nr. - */ - regs->syscall_nr = __NR_rt_sigreturn; + regs->syscall_nr = -1; if (restore_altstack(&frame->uc.uc_stack)) goto badframe; - return 0; + return regs->r00; badframe: force_sig(SIGSEGV, current); diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c index 8e095df..0e364ca 100644 --- a/arch/hexagon/kernel/smp.c +++ b/arch/hexagon/kernel/smp.c @@ -184,7 +184,7 @@ void __cpuinit start_secondary(void) local_irq_enable(); - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } diff --git a/arch/hexagon/kernel/topology.c b/arch/hexagon/kernel/topology.c deleted file mode 100644 index 352f27e..0000000 --- a/arch/hexagon/kernel/topology.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * CPU topology for Hexagon - * - * Copyright (c) 2010-2011, The Linux Foundation. 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 and - * only version 2 as published by the Free Software Foundation. - * - * 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/cpu.h> -#include <linux/cpumask.h> -#include <linux/init.h> -#include <linux/node.h> -#include <linux/nodemask.h> -#include <linux/percpu.h> - -/* Swiped from MIPS. */ - -static DEFINE_PER_CPU(struct cpu, cpu_devices); - -static int __init topology_init(void) -{ - int i, ret; - - for_each_present_cpu(i) { - - /* - * register_cpu takes a per_cpu pointer and - * just points it at another per_cpu struct... - */ - - ret = register_cpu(&per_cpu(cpu_devices, i), i); - if (ret) - printk(KERN_WARNING "topology_init: register_cpu %d " - "failed (%d)\n", i, ret); - } - - return 0; -} - -subsys_initcall(topology_init); diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c index be5e2dd..7858663 100644 --- a/arch/hexagon/kernel/traps.c +++ b/arch/hexagon/kernel/traps.c @@ -1,7 +1,7 @@ /* * Kernel traps/events for Hexagon processor * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2013, The Linux Foundation. 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 and @@ -65,6 +65,10 @@ static const char *ex_name(int ex) return "Write protection fault"; case HVM_GE_C_XMAL: return "Misaligned instruction"; + case HVM_GE_C_WREG: + return "Multiple writes to same register in packet"; + case HVM_GE_C_PCAL: + return "Program counter values that are not properly aligned"; case HVM_GE_C_RMAL: return "Misaligned data load"; case HVM_GE_C_WMAL: @@ -191,14 +195,6 @@ void show_stack(struct task_struct *task, unsigned long *fp) do_show_stack(task, fp, 0); } -void dump_stack(void) -{ - unsigned long *fp; - asm("%0 = r30" : "=r" (fp)); - show_stack(current, fp); -} -EXPORT_SYMBOL(dump_stack); - int die(const char *str, struct pt_regs *regs, long err) { static struct { @@ -324,6 +320,12 @@ void do_genex(struct pt_regs *regs) case HVM_GE_C_XMAL: misaligned_instruction(regs); break; + case HVM_GE_C_WREG: + illegal_instruction(regs); + break; + case HVM_GE_C_PCAL: + misaligned_instruction(regs); + break; case HVM_GE_C_RMAL: misaligned_data_load(regs); break; @@ -356,7 +358,6 @@ long sys_syscall(void) void do_trap0(struct pt_regs *regs) { - unsigned long syscallret = 0; syscall_fn syscall; switch (pt_cause(regs)) { @@ -396,21 +397,11 @@ void do_trap0(struct pt_regs *regs) } else { syscall = (syscall_fn) (sys_call_table[regs->syscall_nr]); - syscallret = syscall(regs->r00, regs->r01, + regs->r00 = syscall(regs->r00, regs->r01, regs->r02, regs->r03, regs->r04, regs->r05); } - /* - * If it was a sigreturn system call, don't overwrite - * r0 value in stack frame with return value. - * - * __NR_sigreturn doesn't seem to exist in new unistd.h - */ - - if (regs->syscall_nr != __NR_rt_sigreturn) - regs->r00 = syscallret; - /* allow strace to get the syscall return state */ if (unlikely(test_thread_flag(TIF_SYSCALL_TRACE))) tracehook_report_syscall_exit(regs, 0); @@ -452,3 +443,14 @@ void do_machcheck(struct pt_regs *regs) /* Halt and catch fire */ __vmstop(); } + +/* + * Treat this like the old 0xdb trap. + */ + +void do_debug_exception(struct pt_regs *regs) +{ + regs->hvmer.vmest &= ~HVM_VMEST_CAUSE_MSK; + regs->hvmer.vmest |= (TRAP_DEBUG << HVM_VMEST_CAUSE_SFT); + do_trap0(regs); +} diff --git a/arch/hexagon/kernel/vm_entry.S b/arch/hexagon/kernel/vm_entry.S index 425e50c..e308618 100644 --- a/arch/hexagon/kernel/vm_entry.S +++ b/arch/hexagon/kernel/vm_entry.S @@ -1,7 +1,7 @@ /* * Event entry/exit for Hexagon * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2013, The Linux Foundation. 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 and @@ -45,48 +45,88 @@ * number in the case where we decode a system call (trap0(#1)). */ +#if CONFIG_HEXAGON_ARCH_VERSION < 4 #define save_pt_regs()\ - memd(R0 + #_PT_R3130) = R31:30; \ + memd(R0 + #_PT_R3130) = R31:30; \ + { memw(R0 + #_PT_R2928) = R28; \ + R31 = memw(R0 + #_PT_ER_VMPSP); }\ + { memw(R0 + #(_PT_R2928 + 4)) = R31; \ + R31 = ugp; } \ + { memd(R0 + #_PT_R2726) = R27:26; \ + R30 = gp ; } \ + memd(R0 + #_PT_R2524) = R25:24; \ + memd(R0 + #_PT_R2322) = R23:22; \ + memd(R0 + #_PT_R2120) = R21:20; \ + memd(R0 + #_PT_R1918) = R19:18; \ + memd(R0 + #_PT_R1716) = R17:16; \ + memd(R0 + #_PT_R1514) = R15:14; \ + memd(R0 + #_PT_R1312) = R13:12; \ + { memd(R0 + #_PT_R1110) = R11:10; \ + R15 = lc0; } \ + { memd(R0 + #_PT_R0908) = R9:8; \ + R14 = sa0; } \ + { memd(R0 + #_PT_R0706) = R7:6; \ + R13 = lc1; } \ + { memd(R0 + #_PT_R0504) = R5:4; \ + R12 = sa1; } \ + { memd(R0 + #_PT_GPUGP) = R31:30; \ + R11 = m1; \ + R2.H = #HI(_THREAD_SIZE); } \ + { memd(R0 + #_PT_LC0SA0) = R15:14; \ + R10 = m0; \ + R2.L = #LO(_THREAD_SIZE); } \ + { memd(R0 + #_PT_LC1SA1) = R13:12; \ + R15 = p3:0; \ + R2 = neg(R2); } \ + { memd(R0 + #_PT_M1M0) = R11:10; \ + R14 = usr; \ + R2 = and(R0,R2); } \ + { memd(R0 + #_PT_PREDSUSR) = R15:14; \ + THREADINFO_REG = R2; } \ + { r24 = memw(THREADINFO_REG + #_THREAD_INFO_PT_REGS); \ + memw(THREADINFO_REG + #_THREAD_INFO_PT_REGS) = R0; \ + R2 = #-1; } \ + { memw(R0 + #_PT_SYSCALL_NR) = R2; \ + R30 = #0; } +#else +/* V4+ */ +/* the # ## # syntax inserts a literal ## */ +#define save_pt_regs()\ + { memd(R0 + #_PT_R3130) = R31:30; \ + R30 = memw(R0 + #_PT_ER_VMPSP); }\ { memw(R0 + #_PT_R2928) = R28; \ - R31 = memw(R0 + #_PT_ER_VMPSP); }\ - { memw(R0 + #(_PT_R2928 + 4)) = R31; \ - R31 = ugp; } \ - { memd(R0 + #_PT_R2726) = R27:26; \ - R30 = gp ; } \ - memd(R0 + #_PT_R2524) = R25:24; \ - memd(R0 + #_PT_R2322) = R23:22; \ - memd(R0 + #_PT_R2120) = R21:20; \ - memd(R0 + #_PT_R1918) = R19:18; \ - memd(R0 + #_PT_R1716) = R17:16; \ - memd(R0 + #_PT_R1514) = R15:14; \ - memd(R0 + #_PT_R1312) = R13:12; \ + memw(R0 + #(_PT_R2928 + 4)) = R30; }\ + { R31:30 = C11:10; \ + memd(R0 + #_PT_R2726) = R27:26; \ + memd(R0 + #_PT_R2524) = R25:24; }\ + { memd(R0 + #_PT_R2322) = R23:22; \ + memd(R0 + #_PT_R2120) = R21:20; }\ + { memd(R0 + #_PT_R1918) = R19:18; \ + memd(R0 + #_PT_R1716) = R17:16; }\ + { memd(R0 + #_PT_R1514) = R15:14; \ + memd(R0 + #_PT_R1312) = R13:12; \ + R17:16 = C13:12; }\ { memd(R0 + #_PT_R1110) = R11:10; \ - R15 = lc0; } \ - { memd(R0 + #_PT_R0908) = R9:8; \ - R14 = sa0; } \ + memd(R0 + #_PT_R0908) = R9:8; \ + R15:14 = C1:0; } \ { memd(R0 + #_PT_R0706) = R7:6; \ - R13 = lc1; } \ - { memd(R0 + #_PT_R0504) = R5:4; \ - R12 = sa1; } \ - { memd(R0 + #_PT_UGPGP) = R31:30; \ - R11 = m1; \ - R2.H = #HI(_THREAD_SIZE); } \ - { memd(R0 + #_PT_LC0SA0) = R15:14; \ - R10 = m0; \ - R2.L = #LO(_THREAD_SIZE); } \ - { memd(R0 + #_PT_LC1SA1) = R13:12; \ - R15 = p3:0; \ - R2 = neg(R2); } \ + memd(R0 + #_PT_R0504) = R5:4; \ + R13:12 = C3:2; } \ + { memd(R0 + #_PT_GPUGP) = R31:30; \ + memd(R0 + #_PT_LC0SA0) = R15:14; \ + R11:10 = C7:6; }\ + { THREADINFO_REG = and(R0, # ## #-_THREAD_SIZE); \ + memd(R0 + #_PT_LC1SA1) = R13:12; \ + R15 = p3:0; }\ { memd(R0 + #_PT_M1M0) = R11:10; \ - R14 = usr; \ - R2 = and(R0,R2); } \ - { memd(R0 + #_PT_PREDSUSR) = R15:14; \ - THREADINFO_REG = R2; } \ + memw(R0 + #_PT_PREDSUSR + 4) = R15; }\ { r24 = memw(THREADINFO_REG + #_THREAD_INFO_PT_REGS); \ memw(THREADINFO_REG + #_THREAD_INFO_PT_REGS) = R0; \ R2 = #-1; } \ { memw(R0 + #_PT_SYSCALL_NR) = R2; \ + memd(R0 + #_PT_CS1CS0) = R17:16; \ R30 = #0; } +#endif /* * Restore registers and thread_info.regs state. THREADINFO_REG @@ -94,6 +134,7 @@ * preserved. Don't restore R29 (SP) until later. */ +#if CONFIG_HEXAGON_ARCH_VERSION < 4 #define restore_pt_regs() \ { memw(THREADINFO_REG + #_THREAD_INFO_PT_REGS) = R24; \ R15:14 = memd(R0 + #_PT_PREDSUSR); } \ @@ -121,11 +162,44 @@ R23:22 = memd(R0 + #_PT_R2322); } \ { R25:24 = memd(R0 + #_PT_R2524); \ R27:26 = memd(R0 + #_PT_R2726); } \ - R31:30 = memd(R0 + #_PT_UGPGP); \ + R31:30 = memd(R0 + #_PT_GPUGP); \ { R28 = memw(R0 + #_PT_R2928); \ ugp = R31; } \ { R31:30 = memd(R0 + #_PT_R3130); \ gp = R30; } +#else +/* V4+ */ +#define restore_pt_regs() \ + { memw(THREADINFO_REG + #_THREAD_INFO_PT_REGS) = R24; \ + R15:14 = memd(R0 + #_PT_PREDSUSR); } \ + { R11:10 = memd(R0 + #_PT_M1M0); \ + R13:12 = memd(R0 + #_PT_LC1SA1); \ + p3:0 = R15; } \ + { R15:14 = memd(R0 + #_PT_LC0SA0); \ + R3:2 = memd(R0 + #_PT_R0302); \ + usr = R14; } \ + { R5:4 = memd(R0 + #_PT_R0504); \ + R7:6 = memd(R0 + #_PT_R0706); \ + C7:6 = R11:10; }\ + { R9:8 = memd(R0 + #_PT_R0908); \ + R11:10 = memd(R0 + #_PT_R1110); \ + C3:2 = R13:12; }\ + { R13:12 = memd(R0 + #_PT_R1312); \ + R15:14 = memd(R0 + #_PT_R1514); \ + C1:0 = R15:14; }\ + { R17:16 = memd(R0 + #_PT_R1716); \ + R19:18 = memd(R0 + #_PT_R1918); } \ + { R21:20 = memd(R0 + #_PT_R2120); \ + R23:22 = memd(R0 + #_PT_R2322); } \ + { R25:24 = memd(R0 + #_PT_R2524); \ + R27:26 = memd(R0 + #_PT_R2726); } \ + R31:30 = memd(R0 + #_PT_CS1CS0); \ + { C13:12 = R31:30; \ + R31:30 = memd(R0 + #_PT_GPUGP) ; \ + R28 = memw(R0 + #_PT_R2928); }\ + { C11:10 = R31:30; \ + R31:30 = memd(R0 + #_PT_R3130); } +#endif /* * Clears off enough space for the rest of pt_regs; evrec is a part @@ -139,6 +213,7 @@ * Need to save off R0, R1, R2, R3 immediately. */ +#if CONFIG_HEXAGON_ARCH_VERSION < 4 #define vm_event_entry(CHandler) \ { \ R29 = add(R29, #-(_PT_REGS_SIZE)); \ @@ -158,6 +233,34 @@ R1.H = #HI(CHandler); \ jump event_dispatch; \ } +#else +/* V4+ */ +/* turn on I$ prefetch early */ +/* the # ## # syntax inserts a literal ## */ +#define vm_event_entry(CHandler) \ + { \ + R29 = add(R29, #-(_PT_REGS_SIZE)); \ + memd(R29 + #(_PT_R0100 + -_PT_REGS_SIZE)) = R1:0; \ + memd(R29 + #(_PT_R0302 + -_PT_REGS_SIZE)) = R3:2; \ + R0 = usr; \ + } \ + { \ + memw(R29 + #_PT_PREDSUSR) = R0; \ + R0 = setbit(R0, #16); \ + } \ + usr = R0; \ + R1:0 = G1:0; \ + { \ + memd(R29 + #_PT_ER_VMEL) = R1:0; \ + R1 = # ## #(CHandler); \ + R3:2 = G3:2; \ + } \ + { \ + R0 = R29; \ + memd(R29 + #_PT_ER_VMPSP) = R3:2; \ + jump event_dispatch; \ + } +#endif .text /* @@ -171,6 +274,9 @@ event_dispatch: callr r1 /* + * Coming back from the C-world, our thread info pointer + * should be in the designated register (usually R19) + * * If we were in kernel mode, we don't need to check scheduler * or signals if CONFIG_PREEMPT is not set. If set, then it has * to jump to a need_resched kind of block. @@ -183,69 +289,68 @@ event_dispatch: #endif /* "Nested control path" -- if the previous mode was kernel */ - R0 = memw(R29 + #_PT_ER_VMEST); - P0 = tstbit(R0, #HVM_VMEST_UM_SFT); - if !P0 jump restore_all; - /* - * Returning from system call, normally coming back from user mode - */ -return_from_syscall: - /* Disable interrupts while checking TIF */ - R0 = #VM_INT_DISABLE - trap1(#HVM_TRAP1_VMSETIE) - - /* - * Coming back from the C-world, our thread info pointer - * should be in the designated register (usually R19) - */ - R1.L = #LO(_TIF_ALLWORK_MASK) { - R1.H = #HI(_TIF_ALLWORK_MASK); - R0 = memw(THREADINFO_REG + #_THREAD_INFO_FLAGS); + R0 = memw(R29 + #_PT_ER_VMEST); + R16.L = #LO(do_work_pending); + } + { + P0 = tstbit(R0, #HVM_VMEST_UM_SFT); + if (!P0.new) jump:nt restore_all; + R16.H = #HI(do_work_pending); + R0 = #VM_INT_DISABLE; } /* - * Compare against the "return to userspace" _TIF_WORK_MASK + * Check also the return from fork/system call, normally coming back from + * user mode + * + * R16 needs to have do_work_pending, and R0 should have VM_INT_DISABLE */ - R1 = and(R1,R0); - { P0 = cmp.eq(R1,#0); if (!P0.new) jump:t work_pending;} - jump restore_all; /* we're outta here! */ -work_pending: +check_work_pending: + /* Disable interrupts while checking TIF */ + trap1(#HVM_TRAP1_VMSETIE) { - P0 = tstbit(R1, #TIF_NEED_RESCHED); - if (!P0.new) jump:nt work_notifysig; + R0 = R29; /* regs should still be at top of stack */ + R1 = memw(THREADINFO_REG + #_THREAD_INFO_FLAGS); + callr R16; } - call schedule - jump return_from_syscall; /* check for more work */ -work_notifysig: - /* this is the part that's kind of fuzzy. */ - R1 = and(R0, #(_TIF_SIGPENDING | _TIF_NOTIFY_RESUME)); - P0 = cmp.eq(R1, #0); - if P0 jump restore_all - R1 = R0; /* unsigned long thread_info_flags */ - R0 = R29; /* regs should still be at top of stack */ - call do_notify_resume + { + P0 = cmp.eq(R0, #0); if (!P0.new) jump:nt check_work_pending; + R0 = #VM_INT_DISABLE; + } restore_all: - /* Disable interrupts, if they weren't already, before reg restore. */ - R0 = #VM_INT_DISABLE + /* + * Disable interrupts, if they weren't already, before reg restore. + * R0 gets preloaded with #VM_INT_DISABLE before we get here. + */ trap1(#HVM_TRAP1_VMSETIE) /* do the setregs here for VM 0.5 */ /* R29 here should already be pointing at pt_regs */ - R1:0 = memd(R29 + #_PT_ER_VMEL); - R3:2 = memd(R29 + #_PT_ER_VMPSP); + { + R1:0 = memd(R29 + #_PT_ER_VMEL); + R3:2 = memd(R29 + #_PT_ER_VMPSP); + } +#if CONFIG_HEXAGON_ARCH_VERSION < 4 trap1(#HVM_TRAP1_VMSETREGS); +#else + G1:0 = R1:0; + G3:2 = R3:2; +#endif R0 = R29 restore_pt_regs() - R1:0 = memd(R29 + #_PT_R0100); - R29 = add(R29, #_PT_REGS_SIZE); + { + R1:0 = memd(R29 + #_PT_R0100); + R29 = add(R29, #_PT_REGS_SIZE); + } trap1(#HVM_TRAP1_VMRTE) /* Notreached */ + .globl _K_enter_genex _K_enter_genex: vm_event_entry(do_genex) @@ -262,12 +367,27 @@ _K_enter_trap0: _K_enter_machcheck: vm_event_entry(do_machcheck) + .globl _K_enter_debug +_K_enter_debug: + vm_event_entry(do_debug_exception) .globl ret_from_fork ret_from_fork: - call schedule_tail - P0 = cmp.eq(R24, #0); - if P0 jump return_from_syscall - R0 = R25; - callr R24 - jump return_from_syscall + { + call schedule_tail + R16.H = #HI(do_work_pending); + } + { + P0 = cmp.eq(R24, #0); + R16.L = #LO(do_work_pending); + R0 = #VM_INT_DISABLE; + } + if P0 jump check_work_pending + { + R0 = R25; + callr R24 + } + { + jump check_work_pending + R0 = #VM_INT_DISABLE; + } diff --git a/arch/hexagon/kernel/vm_events.c b/arch/hexagon/kernel/vm_events.c index 9b5a4a2..741aaa9 100644 --- a/arch/hexagon/kernel/vm_events.c +++ b/arch/hexagon/kernel/vm_events.c @@ -1,7 +1,7 @@ /* * Mostly IRQ support for Hexagon * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2012, The Linux Foundation. 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 and @@ -33,6 +33,8 @@ */ void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_EMERG); + printk(KERN_EMERG "restart_r0: \t0x%08lx syscall_nr: %ld\n", regs->restart_r0, regs->syscall_nr); printk(KERN_EMERG "preds: \t\t0x%08lx\n", regs->preds); @@ -42,6 +44,8 @@ void show_regs(struct pt_regs *regs) regs->lc1, regs->sa1, regs->m1); printk(KERN_EMERG "gp: \t0x%08lx ugp: 0x%08lx usr: 0x%08lx\n", regs->gp, regs->ugp, regs->usr); + printk(KERN_EMERG "cs0: \t0x%08lx cs1: 0x%08lx\n", + regs->cs0, regs->cs1); printk(KERN_EMERG "r0: \t0x%08lx %08lx %08lx %08lx\n", regs->r00, regs->r01, regs->r02, diff --git a/arch/hexagon/kernel/vm_vectors.S b/arch/hexagon/kernel/vm_vectors.S index 620f42c..791a742 100644 --- a/arch/hexagon/kernel/vm_vectors.S +++ b/arch/hexagon/kernel/vm_vectors.S @@ -1,7 +1,7 @@ /* * Event jump tables * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2012,2013, The Linux Foundation. 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 and @@ -41,7 +41,7 @@ _K_VM_event_vector: jump 1b; /* Reset */ jump _K_enter_machcheck; jump _K_enter_genex; - jump 1b; /* 3 Rsvd */ + jump _K_enter_debug; jump 1b; /* 4 Rsvd */ jump _K_enter_trap0; jump 1b; /* 6 Rsvd */ diff --git a/arch/hexagon/kernel/vmlinux.lds.S b/arch/hexagon/kernel/vmlinux.lds.S index 14e793f..44d8c47 100644 --- a/arch/hexagon/kernel/vmlinux.lds.S +++ b/arch/hexagon/kernel/vmlinux.lds.S @@ -1,7 +1,7 @@ /* * Linker script for Hexagon kernel * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2013, The Linux Foundation. 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 and @@ -18,8 +18,6 @@ * 02110-1301, USA. */ -#define LOAD_OFFSET PAGE_OFFSET - #include <asm-generic/vmlinux.lds.h> #include <asm/asm-offsets.h> /* Most of the kernel defines are here */ #include <asm/mem-layout.h> /* except for page_offset */ @@ -36,13 +34,9 @@ See asm-generic/sections.h for seemingly required labels. #define PAGE_SIZE _PAGE_SIZE -/* This LOAD_OFFSET is temporary for debugging on the simulator; it may change - for hypervisor pseudo-physical memory. */ - - SECTIONS { - . = PAGE_OFFSET + LOAD_ADDRESS; + . = PAGE_OFFSET; __init_begin = .; HEAD_TEXT_SECTION @@ -52,7 +46,7 @@ SECTIONS . = ALIGN(_PAGE_SIZE); _stext = .; - .text : AT(ADDR(.text) - LOAD_OFFSET) { + .text : AT(ADDR(.text)) { _text = .; TEXT_TEXT SCHED_TEXT diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c index 69ffcfd..2561d25 100644 --- a/arch/hexagon/mm/init.c +++ b/arch/hexagon/mm/init.c @@ -1,7 +1,7 @@ /* * Memory subsystem initialization for Hexagon * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * Copyright (c) 2010-2013, The Linux Foundation. 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 and @@ -31,9 +31,10 @@ * Define a startpg just past the end of the kernel image and a lastpg * that corresponds to the end of real or simulated platform memory. */ -#define bootmem_startpg (PFN_UP(((unsigned long) _end) - PAGE_OFFSET)) +#define bootmem_startpg (PFN_UP(((unsigned long) _end) - PAGE_OFFSET + PHYS_OFFSET)) -unsigned long bootmem_lastpg; /* Should be set by platform code */ +unsigned long bootmem_lastpg; /* Should be set by platform code */ +unsigned long __phys_offset; /* physical kernel offset >> 12 */ /* Set as variable to limit PMD copies */ int max_kernel_seg = 0x303; @@ -44,7 +45,6 @@ unsigned long zero_page_mask; /* indicate pfn's of high memory */ unsigned long highstart_pfn, highend_pfn; -/* struct mmu_gather defined in asm-generic.h; */ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); /* Default cache attribute for newly created page tables */ @@ -71,7 +71,7 @@ void __init mem_init(void) { /* No idea where this is actually declared. Seems to evade LXR. */ totalram_pages += free_all_bootmem(); - num_physpages = bootmem_lastpg; /* seriously, what? */ + num_physpages = bootmem_lastpg-ARCH_PFN_OFFSET; printk(KERN_INFO "totalram_pages = %ld\n", totalram_pages); @@ -193,6 +193,9 @@ void __init setup_arch_memory(void) * This needs to change for highmem setups. */ + /* Prior to this, bootmem_lastpg is actually mem size */ + bootmem_lastpg += ARCH_PFN_OFFSET; + /* Memory size needs to be a multiple of 16M */ bootmem_lastpg = PFN_DOWN((bootmem_lastpg << PAGE_SHIFT) & ~((BIG_KERNEL_PAGE_SIZE) - 1)); @@ -201,12 +204,15 @@ void __init setup_arch_memory(void) * Reserve the top DMA_RESERVE bytes of RAM for DMA (uncached) * memory allocation */ - bootmap_size = init_bootmem(bootmem_startpg, bootmem_lastpg - - PFN_DOWN(DMA_RESERVED_BYTES)); + + max_low_pfn = bootmem_lastpg - PFN_DOWN(DMA_RESERVED_BYTES); + min_low_pfn = ARCH_PFN_OFFSET; + bootmap_size = init_bootmem_node(NODE_DATA(0), bootmem_startpg, min_low_pfn, max_low_pfn); printk(KERN_INFO "bootmem_startpg: 0x%08lx\n", bootmem_startpg); printk(KERN_INFO "bootmem_lastpg: 0x%08lx\n", bootmem_lastpg); printk(KERN_INFO "bootmap_size: %d\n", bootmap_size); + printk(KERN_INFO "min_low_pfn: 0x%08lx\n", min_low_pfn); printk(KERN_INFO "max_low_pfn: 0x%08lx\n", max_low_pfn); /* @@ -221,14 +227,17 @@ void __init setup_arch_memory(void) /* this actually only goes to the end of the first gig */ segtable_end = segtable + (1<<(30-22)); - /* Move forward to the start of empty pages */ - segtable += bootmem_lastpg >> (22-PAGE_SHIFT); + /* + * Move forward to the start of empty pages; take into account + * phys_offset shift. + */ + segtable += (bootmem_lastpg-ARCH_PFN_OFFSET)>>(22-PAGE_SHIFT); { - int i; + int i; - for (i = 1 ; i <= DMA_RESERVE ; i++) - segtable[-i] = ((segtable[-i] & __HVM_PTE_PGMASK_4MB) + for (i = 1 ; i <= DMA_RESERVE ; i++) + segtable[-i] = ((segtable[-i] & __HVM_PTE_PGMASK_4MB) | __HVM_PTE_R | __HVM_PTE_W | __HVM_PTE_X | __HEXAGON_C_UNC << 6 | __HVM_PDE_S_4MB); @@ -256,7 +265,7 @@ void __init setup_arch_memory(void) * Free all the memory that wasn't taken up by the bootmap, the DMA * reserve, or kernel itself. */ - free_bootmem(PFN_PHYS(bootmem_startpg)+bootmap_size, + free_bootmem(PFN_PHYS(bootmem_startpg) + bootmap_size, PFN_PHYS(bootmem_lastpg - bootmem_startpg) - bootmap_size - DMA_RESERVED_BYTES); diff --git a/arch/hexagon/mm/vm_fault.c b/arch/hexagon/mm/vm_fault.c index 308ef0c..1bd276d 100644 --- a/arch/hexagon/mm/vm_fault.c +++ b/arch/hexagon/mm/vm_fault.c @@ -147,7 +147,7 @@ good_area: } info.si_errno = 0; info.si_addr = (void __user *)address; - force_sig_info(info.si_code, &info, current); + force_sig_info(info.si_signo, &info, current); return; bad_area: @@ -158,7 +158,7 @@ bad_area: info.si_errno = 0; info.si_code = si_code; info.si_addr = (void *)address; - force_sig_info(SIGSEGV, &info, current); + force_sig_info(info.si_signo, &info, current); return; } /* Kernel-mode fault falls through */ diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 9a02f71..e725ea0 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -187,7 +187,7 @@ config IA64_DIG config IA64_DIG_VTD bool "DIG+Intel+IOMMU" - select DMAR + select INTEL_IOMMU select PCI_MSI config IA64_HP_ZX1 @@ -591,9 +591,9 @@ source "kernel/power/Kconfig" source "drivers/acpi/Kconfig" if PM - -source "arch/ia64/kernel/cpufreq/Kconfig" - +menu "CPU Frequency scaling" +source "drivers/cpufreq/Kconfig" +endmenu endif endmenu diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index da2f319..e70cade 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -142,8 +142,7 @@ static void transmit_chars(struct tty_struct *tty, struct serial_state *info, goto out; } - if (info->xmit.head == info->xmit.tail || tty->stopped || - tty->hw_stopped) { + if (info->xmit.head == info->xmit.tail || tty->stopped) { #ifdef SIMSERIAL_DEBUG printk("transmit_chars: head=%d, tail=%d, stopped=%d\n", info->xmit.head, info->xmit.tail, tty->stopped); @@ -181,7 +180,7 @@ static void rs_flush_chars(struct tty_struct *tty) struct serial_state *info = tty->driver_data; if (info->xmit.head == info->xmit.tail || tty->stopped || - tty->hw_stopped || !info->xmit.buf) + !info->xmit.buf) return; transmit_chars(tty, info, NULL); @@ -217,7 +216,7 @@ static int rs_write(struct tty_struct * tty, * Hey, we transmit directly from here in our case */ if (CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE) && - !tty->stopped && !tty->hw_stopped) + !tty->stopped) transmit_chars(tty, info, NULL); return ret; @@ -325,14 +324,6 @@ static int rs_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) #define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK)) -static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios) -{ - /* Handle turning off CRTSCTS */ - if ((old_termios->c_cflag & CRTSCTS) && - !(tty->termios.c_cflag & CRTSCTS)) { - tty->hw_stopped = 0; - } -} /* * This routine will shutdown a serial port; interrupts are disabled, and * DTR is dropped if the hangup on close termio flag is on. @@ -481,7 +472,6 @@ static const struct tty_operations hp_ops = { .throttle = rs_throttle, .unthrottle = rs_unthrottle, .send_xchar = rs_send_xchar, - .set_termios = rs_set_termios, .hangup = rs_hangup, .proc_fops = &rs_proc_fops, }; diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h index d2bf1fd..76acbcd 100644 --- a/arch/ia64/include/asm/futex.h +++ b/arch/ia64/include/asm/futex.h @@ -106,16 +106,15 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, return -EFAULT; { - register unsigned long r8 __asm ("r8"); + register unsigned long r8 __asm ("r8") = 0; unsigned long prev; __asm__ __volatile__( " mf;; \n" - " mov %0=r0 \n" " mov ar.ccv=%4;; \n" "[1:] cmpxchg4.acq %1=[%2],%3,ar.ccv \n" " .xdata4 \"__ex_table\", 1b-., 2f-. \n" "[2:]" - : "=r" (r8), "=r" (prev) + : "+r" (r8), "=&r" (prev) : "r" (uaddr), "r" (newval), "rO" ((long) (unsigned) oldval) : "memory"); diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h index 94eaa5b..aa91005 100644 --- a/arch/ia64/include/asm/hugetlb.h +++ b/arch/ia64/include/asm/hugetlb.h @@ -2,6 +2,7 @@ #define _ASM_IA64_HUGETLB_H #include <asm/page.h> +#include <asm-generic/hugetlb.h> void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, diff --git a/arch/ia64/include/asm/irqflags.h b/arch/ia64/include/asm/irqflags.h index 2b68d85..1bf2cf2 100644 --- a/arch/ia64/include/asm/irqflags.h +++ b/arch/ia64/include/asm/irqflags.h @@ -89,6 +89,7 @@ static inline bool arch_irqs_disabled(void) static inline void arch_safe_halt(void) { + arch_local_irq_enable(); ia64_pal_halt_light(); /* PAL_HALT_LIGHT */ } diff --git a/arch/ia64/include/asm/linkage.h b/arch/ia64/include/asm/linkage.h index ef22a45..7875757 100644 --- a/arch/ia64/include/asm/linkage.h +++ b/arch/ia64/include/asm/linkage.h @@ -11,4 +11,8 @@ #endif +#define cond_syscall(x) asm(".weak\t" #x "#\n" #x "#\t=\tsys_ni_syscall#") +#define SYSCALL_ALIAS(alias, name) \ + asm ( #alias "# = " #name "#\n\t.globl " #alias "#") + #endif diff --git a/arch/ia64/include/asm/mca.h b/arch/ia64/include/asm/mca.h index 43f96ab..8c70961 100644 --- a/arch/ia64/include/asm/mca.h +++ b/arch/ia64/include/asm/mca.h @@ -143,6 +143,7 @@ extern unsigned long __per_cpu_mca[NR_CPUS]; extern int cpe_vector; extern int ia64_cpe_irq; extern void ia64_mca_init(void); +extern void ia64_mca_irq_init(void); extern void ia64_mca_cpu_init(void *); extern void ia64_os_mca_dispatch(void); extern void ia64_os_mca_dispatch_end(void); diff --git a/arch/ia64/include/asm/numa.h b/arch/ia64/include/asm/numa.h index 2e27ef1..2db0a6c 100644 --- a/arch/ia64/include/asm/numa.h +++ b/arch/ia64/include/asm/numa.h @@ -67,14 +67,13 @@ extern int paddr_to_nid(unsigned long paddr); extern void map_cpu_to_node(int cpu, int nid); extern void unmap_cpu_from_node(int cpu, int nid); - +extern void numa_clear_node(int cpu); #else /* !CONFIG_NUMA */ #define map_cpu_to_node(cpu, nid) do{}while(0) #define unmap_cpu_from_node(cpu, nid) do{}while(0) - #define paddr_to_nid(addr) 0 - +#define numa_clear_node(cpu) do { } while (0) #endif /* CONFIG_NUMA */ #endif /* _ASM_IA64_NUMA_H */ diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h index 020d655..cade13d 100644 --- a/arch/ia64/include/asm/thread_info.h +++ b/arch/ia64/include/asm/thread_info.h @@ -131,8 +131,6 @@ struct thread_info { #define TS_POLLING 1 /* true if in idle loop and not sleeping */ #define TS_RESTORE_SIGMASK 2 /* restore signal mask in do_signal() */ -#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING) - #ifndef __ASSEMBLY__ #define HAVE_SET_RESTORE_SIGMASK 1 static inline void set_restore_sigmask(void) diff --git a/arch/ia64/include/asm/unistd.h b/arch/ia64/include/asm/unistd.h index 0963738..afd45e0 100644 --- a/arch/ia64/include/asm/unistd.h +++ b/arch/ia64/include/asm/unistd.h @@ -46,15 +46,5 @@ asmlinkage unsigned long sys_mmap2( struct pt_regs; asmlinkage long sys_ia64_pipe(void); -/* - * "Conditional" syscalls - * - * Note, this macro can only be used in the file which defines sys_ni_syscall, i.e., in - * kernel/sys_ni.c. This version causes warnings because the declaration isn't a - * proper prototype, but we can't use __typeof__ either, because not all cond_syscall() - * declarations have prototypes at the moment. - */ -#define cond_syscall(x) asmlinkage long x (void) __attribute__((weak,alias("sys_ni_syscall"))) - #endif /* !__ASSEMBLY__ */ #endif /* _ASM_IA64_UNISTD_H */ diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile index d959c84..20678a9 100644 --- a/arch/ia64/kernel/Makefile +++ b/arch/ia64/kernel/Makefile @@ -23,7 +23,6 @@ obj-$(CONFIG_SMP) += smp.o smpboot.o obj-$(CONFIG_NUMA) += numa.o obj-$(CONFIG_PERFMON) += perfmon_default_smpl.o obj-$(CONFIG_IA64_CYCLONE) += cyclone.o -obj-$(CONFIG_CPU_FREQ) += cpufreq/ obj-$(CONFIG_IA64_MCA_RECOVERY) += mca_recovery.o obj-$(CONFIG_KPROBES) += kprobes.o jprobes.o obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o diff --git a/arch/ia64/kernel/cpufreq/Kconfig b/arch/ia64/kernel/cpufreq/Kconfig deleted file mode 100644 index 2d9d527..0000000 --- a/arch/ia64/kernel/cpufreq/Kconfig +++ /dev/null @@ -1,29 +0,0 @@ - -# -# CPU Frequency scaling -# - -menu "CPU Frequency scaling" - -source "drivers/cpufreq/Kconfig" - -if CPU_FREQ - -comment "CPUFreq processor drivers" - -config IA64_ACPI_CPUFREQ - tristate "ACPI Processor P-States driver" - select CPU_FREQ_TABLE - depends on ACPI_PROCESSOR - help - This driver adds a CPUFreq driver which utilizes the ACPI - Processor Performance States. - - For details, take a look at <file:Documentation/cpu-freq/>. - - If in doubt, say N. - -endif # CPU_FREQ - -endmenu - diff --git a/arch/ia64/kernel/cpufreq/Makefile b/arch/ia64/kernel/cpufreq/Makefile deleted file mode 100644 index 4838f2a..0000000 --- a/arch/ia64/kernel/cpufreq/Makefile +++ /dev/null @@ -1,2 +0,0 @@ -obj-$(CONFIG_IA64_ACPI_CPUFREQ) += acpi-cpufreq.o - diff --git a/arch/ia64/kernel/cpufreq/acpi-cpufreq.c b/arch/ia64/kernel/cpufreq/acpi-cpufreq.c deleted file mode 100644 index f09b174..0000000 --- a/arch/ia64/kernel/cpufreq/acpi-cpufreq.c +++ /dev/null @@ -1,437 +0,0 @@ -/* - * arch/ia64/kernel/cpufreq/acpi-cpufreq.c - * This file provides the ACPI based P-state support. This - * module works with generic cpufreq infrastructure. Most of - * the code is based on i386 version - * (arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c) - * - * Copyright (C) 2005 Intel Corp - * Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> - */ - -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/cpufreq.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#include <asm/io.h> -#include <asm/uaccess.h> -#include <asm/pal.h> - -#include <linux/acpi.h> -#include <acpi/processor.h> - -MODULE_AUTHOR("Venkatesh Pallipadi"); -MODULE_DESCRIPTION("ACPI Processor P-States Driver"); -MODULE_LICENSE("GPL"); - - -struct cpufreq_acpi_io { - struct acpi_processor_performance acpi_data; - struct cpufreq_frequency_table *freq_table; - unsigned int resume; -}; - -static struct cpufreq_acpi_io *acpi_io_data[NR_CPUS]; - -static struct cpufreq_driver acpi_cpufreq_driver; - - -static int -processor_set_pstate ( - u32 value) -{ - s64 retval; - - pr_debug("processor_set_pstate\n"); - - retval = ia64_pal_set_pstate((u64)value); - - if (retval) { - pr_debug("Failed to set freq to 0x%x, with error 0x%lx\n", - value, retval); - return -ENODEV; - } - return (int)retval; -} - - -static int -processor_get_pstate ( - u32 *value) -{ - u64 pstate_index = 0; - s64 retval; - - pr_debug("processor_get_pstate\n"); - - retval = ia64_pal_get_pstate(&pstate_index, - PAL_GET_PSTATE_TYPE_INSTANT); - *value = (u32) pstate_index; - - if (retval) - pr_debug("Failed to get current freq with " - "error 0x%lx, idx 0x%x\n", retval, *value); - - return (int)retval; -} - - -/* To be used only after data->acpi_data is initialized */ -static unsigned -extract_clock ( - struct cpufreq_acpi_io *data, - unsigned value, - unsigned int cpu) -{ - unsigned long i; - - pr_debug("extract_clock\n"); - - for (i = 0; i < data->acpi_data.state_count; i++) { - if (value == data->acpi_data.states[i].status) - return data->acpi_data.states[i].core_frequency; - } - return data->acpi_data.states[i-1].core_frequency; -} - - -static unsigned int -processor_get_freq ( - struct cpufreq_acpi_io *data, - unsigned int cpu) -{ - int ret = 0; - u32 value = 0; - cpumask_t saved_mask; - unsigned long clock_freq; - - pr_debug("processor_get_freq\n"); - - saved_mask = current->cpus_allowed; - set_cpus_allowed_ptr(current, cpumask_of(cpu)); - if (smp_processor_id() != cpu) - goto migrate_end; - - /* processor_get_pstate gets the instantaneous frequency */ - ret = processor_get_pstate(&value); - - if (ret) { - set_cpus_allowed_ptr(current, &saved_mask); - printk(KERN_WARNING "get performance failed with error %d\n", - ret); - ret = 0; - goto migrate_end; - } - clock_freq = extract_clock(data, value, cpu); - ret = (clock_freq*1000); - -migrate_end: - set_cpus_allowed_ptr(current, &saved_mask); - return ret; -} - - -static int -processor_set_freq ( - struct cpufreq_acpi_io *data, - unsigned int cpu, - int state) -{ - int ret = 0; - u32 value = 0; - struct cpufreq_freqs cpufreq_freqs; - cpumask_t saved_mask; - int retval; - - pr_debug("processor_set_freq\n"); - - saved_mask = current->cpus_allowed; - set_cpus_allowed_ptr(current, cpumask_of(cpu)); - if (smp_processor_id() != cpu) { - retval = -EAGAIN; - goto migrate_end; - } - - if (state == data->acpi_data.state) { - if (unlikely(data->resume)) { - pr_debug("Called after resume, resetting to P%d\n", state); - data->resume = 0; - } else { - pr_debug("Already at target state (P%d)\n", state); - retval = 0; - goto migrate_end; - } - } - - pr_debug("Transitioning from P%d to P%d\n", - data->acpi_data.state, state); - - /* cpufreq frequency struct */ - cpufreq_freqs.cpu = cpu; - cpufreq_freqs.old = data->freq_table[data->acpi_data.state].frequency; - cpufreq_freqs.new = data->freq_table[state].frequency; - - /* notify cpufreq */ - cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_PRECHANGE); - - /* - * First we write the target state's 'control' value to the - * control_register. - */ - - value = (u32) data->acpi_data.states[state].control; - - pr_debug("Transitioning to state: 0x%08x\n", value); - - ret = processor_set_pstate(value); - if (ret) { - unsigned int tmp = cpufreq_freqs.new; - cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_POSTCHANGE); - cpufreq_freqs.new = cpufreq_freqs.old; - cpufreq_freqs.old = tmp; - cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_PRECHANGE); - cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_POSTCHANGE); - printk(KERN_WARNING "Transition failed with error %d\n", ret); - retval = -ENODEV; - goto migrate_end; - } - - cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_POSTCHANGE); - - data->acpi_data.state = state; - - retval = 0; - -migrate_end: - set_cpus_allowed_ptr(current, &saved_mask); - return (retval); -} - - -static unsigned int -acpi_cpufreq_get ( - unsigned int cpu) -{ - struct cpufreq_acpi_io *data = acpi_io_data[cpu]; - - pr_debug("acpi_cpufreq_get\n"); - - return processor_get_freq(data, cpu); -} - - -static int -acpi_cpufreq_target ( - struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu]; - unsigned int next_state = 0; - unsigned int result = 0; - - pr_debug("acpi_cpufreq_setpolicy\n"); - - result = cpufreq_frequency_table_target(policy, - data->freq_table, target_freq, relation, &next_state); - if (result) - return (result); - - result = processor_set_freq(data, policy->cpu, next_state); - - return (result); -} - - -static int -acpi_cpufreq_verify ( - struct cpufreq_policy *policy) -{ - unsigned int result = 0; - struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu]; - - pr_debug("acpi_cpufreq_verify\n"); - - result = cpufreq_frequency_table_verify(policy, - data->freq_table); - - return (result); -} - - -static int -acpi_cpufreq_cpu_init ( - struct cpufreq_policy *policy) -{ - unsigned int i; - unsigned int cpu = policy->cpu; - struct cpufreq_acpi_io *data; - unsigned int result = 0; - - pr_debug("acpi_cpufreq_cpu_init\n"); - - data = kzalloc(sizeof(struct cpufreq_acpi_io), GFP_KERNEL); - if (!data) - return (-ENOMEM); - - acpi_io_data[cpu] = data; - - result = acpi_processor_register_performance(&data->acpi_data, cpu); - - if (result) - goto err_free; - - /* capability check */ - if (data->acpi_data.state_count <= 1) { - pr_debug("No P-States\n"); - result = -ENODEV; - goto err_unreg; - } - - if ((data->acpi_data.control_register.space_id != - ACPI_ADR_SPACE_FIXED_HARDWARE) || - (data->acpi_data.status_register.space_id != - ACPI_ADR_SPACE_FIXED_HARDWARE)) { - pr_debug("Unsupported address space [%d, %d]\n", - (u32) (data->acpi_data.control_register.space_id), - (u32) (data->acpi_data.status_register.space_id)); - result = -ENODEV; - goto err_unreg; - } - - /* alloc freq_table */ - data->freq_table = kmalloc(sizeof(struct cpufreq_frequency_table) * - (data->acpi_data.state_count + 1), - GFP_KERNEL); - if (!data->freq_table) { - result = -ENOMEM; - goto err_unreg; - } - - /* detect transition latency */ - policy->cpuinfo.transition_latency = 0; - for (i=0; i<data->acpi_data.state_count; i++) { - if ((data->acpi_data.states[i].transition_latency * 1000) > - policy->cpuinfo.transition_latency) { - policy->cpuinfo.transition_latency = - data->acpi_data.states[i].transition_latency * 1000; - } - } - policy->cur = processor_get_freq(data, policy->cpu); - - /* table init */ - for (i = 0; i <= data->acpi_data.state_count; i++) - { - data->freq_table[i].index = i; - if (i < data->acpi_data.state_count) { - data->freq_table[i].frequency = - data->acpi_data.states[i].core_frequency * 1000; - } else { - data->freq_table[i].frequency = CPUFREQ_TABLE_END; - } - } - - result = cpufreq_frequency_table_cpuinfo(policy, data->freq_table); - if (result) { - goto err_freqfree; - } - - /* notify BIOS that we exist */ - acpi_processor_notify_smm(THIS_MODULE); - - printk(KERN_INFO "acpi-cpufreq: CPU%u - ACPI performance management " - "activated.\n", cpu); - - for (i = 0; i < data->acpi_data.state_count; i++) - pr_debug(" %cP%d: %d MHz, %d mW, %d uS, %d uS, 0x%x 0x%x\n", - (i == data->acpi_data.state?'*':' '), i, - (u32) data->acpi_data.states[i].core_frequency, - (u32) data->acpi_data.states[i].power, - (u32) data->acpi_data.states[i].transition_latency, - (u32) data->acpi_data.states[i].bus_master_latency, - (u32) data->acpi_data.states[i].status, - (u32) data->acpi_data.states[i].control); - - cpufreq_frequency_table_get_attr(data->freq_table, policy->cpu); - - /* the first call to ->target() should result in us actually - * writing something to the appropriate registers. */ - data->resume = 1; - - return (result); - - err_freqfree: - kfree(data->freq_table); - err_unreg: - acpi_processor_unregister_performance(&data->acpi_data, cpu); - err_free: - kfree(data); - acpi_io_data[cpu] = NULL; - - return (result); -} - - -static int -acpi_cpufreq_cpu_exit ( - struct cpufreq_policy *policy) -{ - struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu]; - - pr_debug("acpi_cpufreq_cpu_exit\n"); - - if (data) { - cpufreq_frequency_table_put_attr(policy->cpu); - acpi_io_data[policy->cpu] = NULL; - acpi_processor_unregister_performance(&data->acpi_data, - policy->cpu); - kfree(data); - } - - return (0); -} - - -static struct freq_attr* acpi_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - - -static struct cpufreq_driver acpi_cpufreq_driver = { - .verify = acpi_cpufreq_verify, - .target = acpi_cpufreq_target, - .get = acpi_cpufreq_get, - .init = acpi_cpufreq_cpu_init, - .exit = acpi_cpufreq_cpu_exit, - .name = "acpi-cpufreq", - .owner = THIS_MODULE, - .attr = acpi_cpufreq_attr, -}; - - -static int __init -acpi_cpufreq_init (void) -{ - pr_debug("acpi_cpufreq_init\n"); - - return cpufreq_register_driver(&acpi_cpufreq_driver); -} - - -static void __exit -acpi_cpufreq_exit (void) -{ - pr_debug("acpi_cpufreq_exit\n"); - - cpufreq_unregister_driver(&acpi_cpufreq_driver); - return; -} - - -late_initcall(acpi_cpufreq_init); -module_exit(acpi_cpufreq_exit); - diff --git a/arch/ia64/kernel/fsys.S b/arch/ia64/kernel/fsys.S index c4cd45d..abc6dee 100644 --- a/arch/ia64/kernel/fsys.S +++ b/arch/ia64/kernel/fsys.S @@ -90,53 +90,6 @@ ENTRY(fsys_getpid) FSYS_RETURN END(fsys_getpid) -ENTRY(fsys_getppid) - .prologue - .altrp b6 - .body - add r17=IA64_TASK_GROUP_LEADER_OFFSET,r16 - ;; - ld8 r17=[r17] // r17 = current->group_leader - add r9=TI_FLAGS+IA64_TASK_SIZE,r16 - ;; - - ld4 r9=[r9] - add r17=IA64_TASK_REAL_PARENT_OFFSET,r17 // r17 = ¤t->group_leader->real_parent - ;; - and r9=TIF_ALLWORK_MASK,r9 - -1: ld8 r18=[r17] // r18 = current->group_leader->real_parent - ;; - cmp.ne p8,p0=0,r9 - add r8=IA64_TASK_TGID_OFFSET,r18 // r8 = ¤t->group_leader->real_parent->tgid - ;; - - /* - * The .acq is needed to ensure that the read of tgid has returned its data before - * we re-check "real_parent". - */ - ld4.acq r8=[r8] // r8 = current->group_leader->real_parent->tgid -#ifdef CONFIG_SMP - /* - * Re-read current->group_leader->real_parent. - */ - ld8 r19=[r17] // r19 = current->group_leader->real_parent -(p8) br.spnt.many fsys_fallback_syscall - ;; - cmp.ne p6,p0=r18,r19 // did real_parent change? - mov r19=0 // i must not leak kernel bits... -(p6) br.cond.spnt.few 1b // yes -> redo the read of tgid and the check - ;; - mov r17=0 // i must not leak kernel bits... - mov r18=0 // i must not leak kernel bits... -#else - mov r17=0 // i must not leak kernel bits... - mov r18=0 // i must not leak kernel bits... - mov r19=0 // i must not leak kernel bits... -#endif - FSYS_RETURN -END(fsys_getppid) - ENTRY(fsys_set_tid_address) .prologue .altrp b6 @@ -614,7 +567,7 @@ paravirt_fsyscall_table: data8 0 // chown data8 0 // lseek // 1040 data8 fsys_getpid // getpid - data8 fsys_getppid // getppid + data8 0 // getppid data8 0 // mount data8 0 // umount data8 0 // setuid // 1045 diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c index ee33c3a..19f107b 100644 --- a/arch/ia64/kernel/iosapic.c +++ b/arch/ia64/kernel/iosapic.c @@ -76,7 +76,7 @@ * PCI pin -> global system interrupt (GSI) -> IA-64 vector <-> IRQ * * Note: The term "IRQ" is loosely used everywhere in Linux kernel to - * describeinterrupts. Now we use "IRQ" only for Linux IRQ's. ISA IRQ + * describe interrupts. Now we use "IRQ" only for Linux IRQ's. ISA IRQ * (isa_irq) is the only exception in this source code. */ @@ -1010,6 +1010,26 @@ iosapic_check_gsi_range (unsigned int gsi_base, unsigned int ver) return 0; } +static int +iosapic_delete_rte(unsigned int irq, unsigned int gsi) +{ + struct iosapic_rte_info *rte, *temp; + + list_for_each_entry_safe(rte, temp, &iosapic_intr_info[irq].rtes, + rte_list) { + if (rte->iosapic->gsi_base + rte->rte_index == gsi) { + if (rte->refcnt) + return -EBUSY; + + list_del(&rte->rte_list); + kfree(rte); + return 0; + } + } + + return -EINVAL; +} + int iosapic_init(unsigned long phys_addr, unsigned int gsi_base) { int num_rte, err, index; @@ -1069,7 +1089,7 @@ int iosapic_init(unsigned long phys_addr, unsigned int gsi_base) int iosapic_remove(unsigned int gsi_base) { - int index, err = 0; + int i, irq, index, err = 0; unsigned long flags; spin_lock_irqsave(&iosapic_lock, flags); @@ -1087,6 +1107,16 @@ int iosapic_remove(unsigned int gsi_base) goto out; } + for (i = gsi_base; i < gsi_base + iosapic_lists[index].num_rte; i++) { + irq = __gsi_to_irq(i); + if (irq < 0) + continue; + + err = iosapic_delete_rte(irq, i); + if (err) + goto out; + } + iounmap(iosapic_lists[index].addr); iosapic_free(index); out: diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c index ad69606..f2c41828 100644 --- a/arch/ia64/kernel/irq.c +++ b/arch/ia64/kernel/irq.c @@ -23,6 +23,8 @@ #include <linux/interrupt.h> #include <linux/kernel_stat.h> +#include <asm/mca.h> + /* * 'what should we do if we get a hw irq event on an illegal vector'. * each architecture has to answer this themselves. @@ -83,6 +85,12 @@ bool is_affinity_mask_valid(const struct cpumask *cpumask) #endif /* CONFIG_SMP */ +int __init arch_early_irq_init(void) +{ + ia64_mca_irq_init(); + return 0; +} + #ifdef CONFIG_HOTPLUG_CPU unsigned int vectors_in_migration[NR_IRQS]; diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index 65bf9cd..d7396db 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -2074,22 +2074,16 @@ ia64_mca_init(void) printk(KERN_INFO "MCA related initialization done\n"); } + /* - * ia64_mca_late_init - * - * Opportunity to setup things that require initialization later - * than ia64_mca_init. Setup a timer to poll for CPEs if the - * platform doesn't support an interrupt driven mechanism. - * - * Inputs : None - * Outputs : Status + * These pieces cannot be done in ia64_mca_init() because it is called before + * early_irq_init() which would wipe out our percpu irq registrations. But we + * cannot leave them until ia64_mca_late_init() because by then all the other + * processors have been brought online and have set their own CMC vectors to + * point at a non-existant action. Called from arch_early_irq_init(). */ -static int __init -ia64_mca_late_init(void) +void __init ia64_mca_irq_init(void) { - if (!mca_init) - return 0; - /* * Configure the CMCI/P vector and handler. Interrupts for CMC are * per-processor, so AP CMC interrupts are setup in smp_callin() (smpboot.c). @@ -2108,6 +2102,23 @@ ia64_mca_late_init(void) /* Setup the CPEI/P handler */ register_percpu_irq(IA64_CPEP_VECTOR, &mca_cpep_irqaction); #endif +} + +/* + * ia64_mca_late_init + * + * Opportunity to setup things that require initialization later + * than ia64_mca_init. Setup a timer to poll for CPEs if the + * platform doesn't support an interrupt driven mechanism. + * + * Inputs : None + * Outputs : Status + */ +static int __init +ia64_mca_late_init(void) +{ + if (!mca_init) + return 0; register_hotcpu_notifier(&mca_cpu_notifier); diff --git a/arch/ia64/kernel/mca_drv.c b/arch/ia64/kernel/mca_drv.c index 9392e02..94f8bf7 100644 --- a/arch/ia64/kernel/mca_drv.c +++ b/arch/ia64/kernel/mca_drv.c @@ -349,7 +349,7 @@ init_record_index_pools(void) /* - 3 - */ slidx_pool.max_idx = (rec_max_size/sect_min_size) * 2 + 1; - slidx_pool.buffer = (slidx_list_t *) + slidx_pool.buffer = kmalloc(slidx_pool.max_idx * sizeof(slidx_list_t), GFP_KERNEL); return slidx_pool.buffer ? 0 : -ENOMEM; diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 2eda284..9ea25fc 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -42,6 +42,7 @@ #include <linux/completion.h> #include <linux/tracehook.h> #include <linux/slab.h> +#include <linux/cpu.h> #include <asm/errno.h> #include <asm/intrinsics.h> @@ -1322,8 +1323,6 @@ out: } EXPORT_SYMBOL(pfm_unregister_buffer_fmt); -extern void update_pal_halt_status(int); - static int pfm_reserve_session(struct task_struct *task, int is_syswide, unsigned int cpu) { @@ -1371,9 +1370,9 @@ pfm_reserve_session(struct task_struct *task, int is_syswide, unsigned int cpu) cpu)); /* - * disable default_idle() to go to PAL_HALT + * Force idle() into poll mode */ - update_pal_halt_status(0); + cpu_idle_poll_ctrl(true); UNLOCK_PFS(flags); @@ -1430,11 +1429,8 @@ pfm_unreserve_session(pfm_context_t *ctx, int is_syswide, unsigned int cpu) is_syswide, cpu)); - /* - * if possible, enable default_idle() to go into PAL_HALT - */ - if (pfm_sessions.pfs_task_sessions == 0 && pfm_sessions.pfs_sys_sessions == 0) - update_pal_halt_status(1); + /* Undo forced polling. Last session reenables pal_halt */ + cpu_idle_poll_ctrl(false); UNLOCK_PFS(flags); diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index 6f7dc8b..55d4ba4 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -96,21 +96,13 @@ show_stack (struct task_struct *task, unsigned long *sp) } void -dump_stack (void) -{ - show_stack(NULL, NULL); -} - -EXPORT_SYMBOL(dump_stack); - -void show_regs (struct pt_regs *regs) { unsigned long ip = regs->cr_iip + ia64_psr(regs)->ri; print_modules(); - printk("\nPid: %d, CPU %d, comm: %20s\n", task_pid_nr(current), - smp_processor_id(), current->comm); + printk("\n"); + show_regs_print_info(KERN_DEFAULT); printk("psr : %016lx ifs : %016lx ip : [<%016lx>] %s (%s)\n", regs->cr_ipsr, regs->cr_ifs, ip, print_tainted(), init_utsname()->release); @@ -209,41 +201,13 @@ do_notify_resume_user(sigset_t *unused, struct sigscratch *scr, long in_syscall) local_irq_disable(); /* force interrupt disable */ } -static int pal_halt = 1; -static int can_do_pal_halt = 1; - static int __init nohalt_setup(char * str) { - pal_halt = can_do_pal_halt = 0; + cpu_idle_poll_ctrl(true); return 1; } __setup("nohalt", nohalt_setup); -void -update_pal_halt_status(int status) -{ - can_do_pal_halt = pal_halt && status; -} - -/* - * We use this if we don't have any better idle routine.. - */ -void -default_idle (void) -{ - local_irq_enable(); - while (!need_resched()) { - if (can_do_pal_halt) { - local_irq_disable(); - if (!need_resched()) { - safe_halt(); - } - local_irq_enable(); - } else - cpu_relax(); - } -} - #ifdef CONFIG_HOTPLUG_CPU /* We don't actually take CPU down, just spin without interrupts. */ static inline void play_dead(void) @@ -270,47 +234,29 @@ static inline void play_dead(void) } #endif /* CONFIG_HOTPLUG_CPU */ -void __attribute__((noreturn)) -cpu_idle (void) +void arch_cpu_idle_dead(void) +{ + play_dead(); +} + +void arch_cpu_idle(void) { void (*mark_idle)(int) = ia64_mark_idle; - int cpu = smp_processor_id(); - - /* endless idle loop with no priority at all */ - while (1) { - rcu_idle_enter(); - if (can_do_pal_halt) { - current_thread_info()->status &= ~TS_POLLING; - /* - * TS_POLLING-cleared state must be visible before we - * test NEED_RESCHED: - */ - smp_mb(); - } else { - current_thread_info()->status |= TS_POLLING; - } - if (!need_resched()) { #ifdef CONFIG_SMP - min_xtp(); + min_xtp(); #endif - rmb(); - if (mark_idle) - (*mark_idle)(1); + rmb(); + if (mark_idle) + (*mark_idle)(1); - default_idle(); - if (mark_idle) - (*mark_idle)(0); + safe_halt(); + + if (mark_idle) + (*mark_idle)(0); #ifdef CONFIG_SMP - normal_xtp(); + normal_xtp(); #endif - } - rcu_idle_exit(); - schedule_preempt_disabled(); - check_pgt_cache(); - if (cpu_is_offline(cpu)) - play_dead(); - } } void diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 2029cc0..13bfdd2 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -1063,6 +1063,7 @@ check_bugs (void) static int __init run_dmi_scan(void) { dmi_scan_machine(); + dmi_set_dump_stack_arch_desc(); return 0; } core_initcall(run_dmi_scan); diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index 500f1e4..8d87168 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -455,7 +455,7 @@ start_secondary (void *unused) preempt_disable(); smp_callin(); - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); return 0; } diff --git a/arch/ia64/kvm/vtlb.c b/arch/ia64/kvm/vtlb.c index 4332f7e..a7869f8 100644 --- a/arch/ia64/kvm/vtlb.c +++ b/arch/ia64/kvm/vtlb.c @@ -256,7 +256,7 @@ u64 guest_vhpt_lookup(u64 iha, u64 *pte) "srlz.d;;" "ssm psr.i;;" "srlz.d;;" - : "=r"(ret) : "r"(iha), "r"(pte):"memory"); + : "=&r"(ret) : "r"(iha), "r"(pte) : "memory"); return ret; } diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c index 80dab50..67c59eb 100644 --- a/arch/ia64/mm/contig.c +++ b/arch/ia64/mm/contig.c @@ -47,6 +47,8 @@ void show_mem(unsigned int filter) printk(KERN_INFO "Mem-info:\n"); show_free_areas(filter); printk(KERN_INFO "Node memory in pages:\n"); + if (filter & SHOW_MEM_FILTER_PAGE_COUNT) + return; for_each_online_pgdat(pgdat) { unsigned long present; unsigned long flags; diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c index c2e955e..ae4db4b 100644 --- a/arch/ia64/mm/discontig.c +++ b/arch/ia64/mm/discontig.c @@ -623,6 +623,8 @@ void show_mem(unsigned int filter) printk(KERN_INFO "Mem-info:\n"); show_free_areas(filter); + if (filter & SHOW_MEM_FILTER_PAGE_COUNT) + return; printk(KERN_INFO "Node memory in pages:\n"); for_each_online_pgdat(pgdat) { unsigned long present; @@ -817,13 +819,12 @@ void arch_refresh_nodedata(int update_node, pg_data_t *update_pgdat) #endif #ifdef CONFIG_SPARSEMEM_VMEMMAP -int __meminit vmemmap_populate(struct page *start_page, - unsigned long size, int node) +int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node) { - return vmemmap_populate_basepages(start_page, size, node); + return vmemmap_populate_basepages(start, end, node); } -void vmemmap_free(struct page *memmap, unsigned long nr_pages) +void vmemmap_free(unsigned long start, unsigned long end) { } #endif diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 20bc967..d1fe4b4 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -154,25 +154,14 @@ ia64_init_addr_space (void) void free_initmem (void) { - unsigned long addr, eaddr; - - addr = (unsigned long) ia64_imva(__init_begin); - eaddr = (unsigned long) ia64_imva(__init_end); - while (addr < eaddr) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - ++totalram_pages; - addr += PAGE_SIZE; - } - printk(KERN_INFO "Freeing unused kernel memory: %ldkB freed\n", - (__init_end - __init_begin) >> 10); + free_reserved_area((unsigned long)ia64_imva(__init_begin), + (unsigned long)ia64_imva(__init_end), + 0, "unused kernel"); } void __init free_initrd_mem (unsigned long start, unsigned long end) { - struct page *page; /* * EFI uses 4KB pages while the kernel can use 4KB or bigger. * Thus EFI and the kernel may have different page sizes. It is @@ -213,11 +202,7 @@ free_initrd_mem (unsigned long start, unsigned long end) for (; start < end; start += PAGE_SIZE) { if (!virt_addr_valid(start)) continue; - page = virt_to_page(start); - ClearPageReserved(page); - init_page_count(page); - free_page(start); - ++totalram_pages; + free_reserved_page(virt_to_page(start)); } } diff --git a/arch/ia64/mm/ioremap.c b/arch/ia64/mm/ioremap.c index 3dccdd8..43964cd 100644 --- a/arch/ia64/mm/ioremap.c +++ b/arch/ia64/mm/ioremap.c @@ -16,7 +16,7 @@ #include <asm/meminit.h> static inline void __iomem * -__ioremap (unsigned long phys_addr) +__ioremap_uc(unsigned long phys_addr) { return (void __iomem *) (__IA64_UNCACHED_OFFSET | phys_addr); } @@ -24,7 +24,11 @@ __ioremap (unsigned long phys_addr) void __iomem * early_ioremap (unsigned long phys_addr, unsigned long size) { - return __ioremap(phys_addr); + u64 attr; + attr = kern_mem_attribute(phys_addr, size); + if (attr & EFI_MEMORY_WB) + return (void __iomem *) phys_to_virt(phys_addr); + return __ioremap_uc(phys_addr); } void __iomem * @@ -47,7 +51,7 @@ ioremap (unsigned long phys_addr, unsigned long size) if (attr & EFI_MEMORY_WB) return (void __iomem *) phys_to_virt(phys_addr); else if (attr & EFI_MEMORY_UC) - return __ioremap(phys_addr); + return __ioremap_uc(phys_addr); /* * Some chipsets don't support UC access to memory. If @@ -93,7 +97,7 @@ ioremap (unsigned long phys_addr, unsigned long size) return (void __iomem *) (offset + (char __iomem *)addr); } - return __ioremap(phys_addr); + return __ioremap_uc(phys_addr); } EXPORT_SYMBOL(ioremap); @@ -103,7 +107,7 @@ ioremap_nocache (unsigned long phys_addr, unsigned long size) if (kern_mem_attribute(phys_addr, size) & EFI_MEMORY_WB) return NULL; - return __ioremap(phys_addr); + return __ioremap_uc(phys_addr); } EXPORT_SYMBOL(ioremap_nocache); diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c index 3efea7d..4248492 100644 --- a/arch/ia64/mm/numa.c +++ b/arch/ia64/mm/numa.c @@ -61,18 +61,36 @@ paddr_to_nid(unsigned long paddr) int __meminit __early_pfn_to_nid(unsigned long pfn) { int i, section = pfn >> PFN_SECTION_SHIFT, ssec, esec; + /* + * NOTE: The following SMP-unsafe globals are only used early in boot + * when the kernel is running single-threaded. + */ + static int __meminitdata last_ssec, last_esec; + static int __meminitdata last_nid; + + if (section >= last_ssec && section < last_esec) + return last_nid; for (i = 0; i < num_node_memblks; i++) { ssec = node_memblk[i].start_paddr >> PA_SECTION_SHIFT; esec = (node_memblk[i].start_paddr + node_memblk[i].size + ((1L << PA_SECTION_SHIFT) - 1)) >> PA_SECTION_SHIFT; - if (section >= ssec && section < esec) + if (section >= ssec && section < esec) { + last_ssec = ssec; + last_esec = esec; + last_nid = node_memblk[i].nid; return node_memblk[i].nid; + } } return -1; } +void __cpuinit numa_clear_node(int cpu) +{ + unmap_cpu_from_node(cpu, NUMA_NO_NODE); +} + #ifdef CONFIG_MEMORY_HOTPLUG /* * SRAT information is stored in node_memblk[], then we can use SRAT diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 60532ab..de1474f 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -15,6 +15,7 @@ #include <linux/types.h> #include <linux/kernel.h> #include <linux/pci.h> +#include <linux/pci-acpi.h> #include <linux/init.h> #include <linux/ioport.h> #include <linux/slab.h> @@ -458,6 +459,16 @@ void pcibios_fixup_bus(struct pci_bus *b) platform_pci_fixup_bus(b); } +void pcibios_add_bus(struct pci_bus *bus) +{ + acpi_pci_add_bus(bus); +} + +void pcibios_remove_bus(struct pci_bus *bus) +{ + acpi_pci_remove_bus(bus); +} + void pcibios_set_master (struct pci_dev *dev) { /* No special bus mastering setup handling */ diff --git a/arch/ia64/sn/kernel/tiocx.c b/arch/ia64/sn/kernel/tiocx.c index 14c1711..e35f648 100644 --- a/arch/ia64/sn/kernel/tiocx.c +++ b/arch/ia64/sn/kernel/tiocx.c @@ -490,11 +490,14 @@ static int __init tiocx_init(void) { cnodeid_t cnodeid; int found_tiocx_device = 0; + int err; if (!ia64_platform_is("sn2")) return 0; - bus_register(&tiocx_bus_type); + err = bus_register(&tiocx_bus_type); + if (err) + return err; for (cnodeid = 0; cnodeid < num_cnodes; cnodeid++) { nasid_t nasid; diff --git a/arch/m32r/include/asm/unistd.h b/arch/m32r/include/asm/unistd.h index 555629b..59db801 100644 --- a/arch/m32r/include/asm/unistd.h +++ b/arch/m32r/include/asm/unistd.h @@ -48,14 +48,4 @@ #define __IGNORE_getresgid #define __IGNORE_chown -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#ifndef cond_syscall -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") -#endif - #endif /* _ASM_M32R_UNISTD_H */ diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c index bde899e..e69221d 100644 --- a/arch/m32r/kernel/process.c +++ b/arch/m32r/kernel/process.c @@ -47,24 +47,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk) void (*pm_power_off)(void) = NULL; EXPORT_SYMBOL(pm_power_off); -/* - * 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) { - rcu_idle_enter(); - while (!need_resched()) - cpu_relax(); - rcu_idle_exit(); - schedule_preempt_disabled(); - } -} - void machine_restart(char *__unused) { #if defined(CONFIG_PLAT_MAPPI3) @@ -91,6 +73,8 @@ void machine_power_off(void) void show_regs(struct pt_regs * regs) { printk("\n"); + show_regs_print_info(KERN_DEFAULT); + printk("BPC[%08lx]:PSW[%08lx]:LR [%08lx]:FP [%08lx]\n", \ regs->bpc, regs->psw, regs->lr, regs->fp); printk("BBPC[%08lx]:BBPSW[%08lx]:SPU[%08lx]:SPI[%08lx]\n", \ diff --git a/arch/m32r/kernel/smpboot.c b/arch/m32r/kernel/smpboot.c index 13168a7..0ac558a 100644 --- a/arch/m32r/kernel/smpboot.c +++ b/arch/m32r/kernel/smpboot.c @@ -432,7 +432,7 @@ int __init start_secondary(void *unused) */ local_flush_tlb_all(); - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); return 0; } diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c index 3bcb207..a7a424f 100644 --- a/arch/m32r/kernel/traps.c +++ b/arch/m32r/kernel/traps.c @@ -132,10 +132,8 @@ static void show_trace(struct task_struct *task, unsigned long *stack) printk("Call Trace: "); while (!kstack_end(stack)) { addr = *stack++; - if (__kernel_text_address(addr)) { - printk("[<%08lx>] ", addr); - print_symbol("%s\n", addr); - } + if (__kernel_text_address(addr)) + printk("[<%08lx>] %pSR\n", addr, (void *)addr); } printk("\n"); } @@ -169,15 +167,6 @@ void show_stack(struct task_struct *task, unsigned long *sp) show_trace(task, sp); } -void dump_stack(void) -{ - unsigned long stack; - - show_trace(current, &stack); -} - -EXPORT_SYMBOL(dump_stack); - static void show_registers(struct pt_regs *regs) { int i = 0; diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c index 78b660e..ab4cbce 100644 --- a/arch/m32r/mm/init.c +++ b/arch/m32r/mm/init.c @@ -28,10 +28,7 @@ #include <asm/mmu_context.h> #include <asm/setup.h> #include <asm/tlb.h> - -/* References to section boundaries */ -extern char _text, _etext, _edata; -extern char __init_begin, __init_end; +#include <asm/sections.h> pgd_t swapper_pg_dir[1024]; @@ -184,17 +181,7 @@ void __init mem_init(void) *======================================================================*/ void free_initmem(void) { - unsigned long addr; - - addr = (unsigned long)(&__init_begin); - for (; addr < (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_INFO "Freeing unused kernel memory: %dk freed\n", \ - (int)(&__init_end - &__init_begin) >> 10); + free_initmem_default(0); } #ifdef CONFIG_BLK_DEV_INITRD @@ -204,13 +191,6 @@ void free_initmem(void) *======================================================================*/ void free_initrd_mem(unsigned long start, unsigned long end) { - unsigned long p; - for (p = start; p < end; p += PAGE_SIZE) { - ClearPageReserved(virt_to_page(p)); - init_page_count(virt_to_page(p)); - free_page(p); - totalram_pages++; - } - printk (KERN_INFO "Freeing initrd memory: %ldk freed\n", (end - start) >> 10); + free_reserved_area(start, end, 0, "initrd"); } #endif diff --git a/arch/m68k/Kconfig.bus b/arch/m68k/Kconfig.bus index 93ef034..675b087 100644 --- a/arch/m68k/Kconfig.bus +++ b/arch/m68k/Kconfig.bus @@ -45,6 +45,16 @@ config ISA (MCA) or VESA. ISA is an older system, now being displaced by PCI; newer boards don't support it. If you have ISA, say Y, otherwise N. +config ATARI_ROM_ISA + bool "Atari ROM port ISA adapter support" + depends on ATARI + help + This option enables support for the ROM port ISA adapter used to + operate ISA cards on Atari. Only 8 bit cards are supported, and + no interrupt lines are connected. + The only driver currently using this adapter is the EtherNEC + driver for RTL8019AS based NE2000 compatible network cards. + config GENERIC_ISA_DMA def_bool ISA diff --git a/arch/m68k/Kconfig.devices b/arch/m68k/Kconfig.devices index 4bc945d..d163991 100644 --- a/arch/m68k/Kconfig.devices +++ b/arch/m68k/Kconfig.devices @@ -55,6 +55,30 @@ config NFETH which will emulate a regular ethernet device while presenting an ethertap device to the host system. +config ATARI_ETHERNAT + bool "Atari EtherNAT Ethernet support" + depends on ATARI + ---help--- + Say Y to include support for the EtherNAT network adapter for the + CT/60 extension port. + + To compile the actual ethernet driver, choose Y or M for the SMC91X + option in the network device section; the module will be called smc91x. + +config ATARI_ETHERNEC + bool "Atari EtherNEC Ethernet support" + depends on ATARI_ROM_ISA + ---help--- + Say Y to include support for the EtherNEC network adapter for the + ROM port. The driver works by polling instead of interrupts, so it + is quite slow. + + This driver also suppports the ethernet part of the NetUSBee ROM + port combined Ethernet/USB adapter. + + To compile the actual ethernet driver, choose Y or M in for the NE2000 + option in the network device section; the module will be called ne. + endmenu menu "Character devices" diff --git a/arch/m68k/atari/ataints.c b/arch/m68k/atari/ataints.c index 3f41092..20cde4e 100644 --- a/arch/m68k/atari/ataints.c +++ b/arch/m68k/atari/ataints.c @@ -49,6 +49,7 @@ #include <asm/atari_stdma.h> #include <asm/irq.h> #include <asm/entry.h> +#include <asm/io.h> /* @@ -122,6 +123,136 @@ static struct irq_chip atari_irq_chip = { }; /* + * ST-MFP timer D chained interrupts - each driver gets its own timer + * interrupt instance. + */ + +struct mfptimerbase { + volatile struct MFP *mfp; + unsigned char mfp_mask, mfp_data; + unsigned short int_mask; + int handler_irq, mfptimer_irq, server_irq; + char *name; +} stmfp_base = { + .mfp = &st_mfp, + .int_mask = 0x0, + .handler_irq = IRQ_MFP_TIMD, + .mfptimer_irq = IRQ_MFP_TIMER1, + .name = "MFP Timer D" +}; + +static irqreturn_t mfptimer_handler(int irq, void *dev_id) +{ + struct mfptimerbase *base = dev_id; + int mach_irq; + unsigned char ints; + + mach_irq = base->mfptimer_irq; + ints = base->int_mask; + for (; ints; mach_irq++, ints >>= 1) { + if (ints & 1) + generic_handle_irq(mach_irq); + } + return IRQ_HANDLED; +} + + +static void atari_mfptimer_enable(struct irq_data *data) +{ + int mfp_num = data->irq - IRQ_MFP_TIMER1; + stmfp_base.int_mask |= 1 << mfp_num; + atari_enable_irq(IRQ_MFP_TIMD); +} + +static void atari_mfptimer_disable(struct irq_data *data) +{ + int mfp_num = data->irq - IRQ_MFP_TIMER1; + stmfp_base.int_mask &= ~(1 << mfp_num); + if (!stmfp_base.int_mask) + atari_disable_irq(IRQ_MFP_TIMD); +} + +static struct irq_chip atari_mfptimer_chip = { + .name = "timer_d", + .irq_enable = atari_mfptimer_enable, + .irq_disable = atari_mfptimer_disable, +}; + + +/* + * EtherNAT CPLD interrupt handling + * CPLD interrupt register is at phys. 0x80000023 + * Need this mapped in at interrupt startup time + * Possibly need this mapped on demand anyway - + * EtherNAT USB driver needs to disable IRQ before + * startup! + */ + +static unsigned char *enat_cpld; + +static unsigned int atari_ethernat_startup(struct irq_data *data) +{ + int enat_num = 140 - data->irq + 1; + + m68k_irq_startup(data); + /* + * map CPLD interrupt register + */ + if (!enat_cpld) + enat_cpld = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0x2); + /* + * do _not_ enable the USB chip interrupt here - causes interrupt storm + * and triggers dead interrupt watchdog + * Need to reset the USB chip to a sane state in early startup before + * removing this hack + */ + if (enat_num == 1) + *enat_cpld |= 1 << enat_num; + + return 0; +} + +static void atari_ethernat_enable(struct irq_data *data) +{ + int enat_num = 140 - data->irq + 1; + /* + * map CPLD interrupt register + */ + if (!enat_cpld) + enat_cpld = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0x2); + *enat_cpld |= 1 << enat_num; +} + +static void atari_ethernat_disable(struct irq_data *data) +{ + int enat_num = 140 - data->irq + 1; + /* + * map CPLD interrupt register + */ + if (!enat_cpld) + enat_cpld = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0x2); + *enat_cpld &= ~(1 << enat_num); +} + +static void atari_ethernat_shutdown(struct irq_data *data) +{ + int enat_num = 140 - data->irq + 1; + if (enat_cpld) { + *enat_cpld &= ~(1 << enat_num); + iounmap(enat_cpld); + enat_cpld = NULL; + } +} + +static struct irq_chip atari_ethernat_chip = { + .name = "ethernat", + .irq_startup = atari_ethernat_startup, + .irq_shutdown = atari_ethernat_shutdown, + .irq_enable = atari_ethernat_enable, + .irq_disable = atari_ethernat_disable, +}; + +/* * void atari_init_IRQ (void) * * Parameters: None @@ -198,6 +329,27 @@ void __init atari_init_IRQ(void) /* Initialize the PSG: all sounds off, both ports output */ sound_ym.rd_data_reg_sel = 7; sound_ym.wd_data = 0xff; + + m68k_setup_irq_controller(&atari_mfptimer_chip, handle_simple_irq, + IRQ_MFP_TIMER1, 8); + + /* prepare timer D data for use as poll interrupt */ + /* set Timer D data Register - needs to be > 0 */ + st_mfp.tim_dt_d = 254; /* < 100 Hz */ + /* start timer D, div = 1:100 */ + st_mfp.tim_ct_cd = (st_mfp.tim_ct_cd & 0xf0) | 0x6; + + /* request timer D dispatch handler */ + if (request_irq(IRQ_MFP_TIMD, mfptimer_handler, IRQF_SHARED, + stmfp_base.name, &stmfp_base)) + pr_err("Couldn't register %s interrupt\n", stmfp_base.name); + + /* + * EtherNAT ethernet / USB interrupt handlers + */ + + m68k_setup_irq_controller(&atari_ethernat_chip, handle_simple_irq, + 139, 2); } diff --git a/arch/m68k/atari/config.c b/arch/m68k/atari/config.c index 037c11c..fb2d0bd 100644 --- a/arch/m68k/atari/config.c +++ b/arch/m68k/atari/config.c @@ -31,6 +31,8 @@ #include <linux/init.h> #include <linux/delay.h> #include <linux/ioport.h> +#include <linux/platform_device.h> +#include <linux/usb/isp116x.h> #include <linux/vt_kern.h> #include <linux/module.h> @@ -655,3 +657,240 @@ static void atari_get_hardware_list(struct seq_file *m) ATARIHW_ANNOUNCE(VME, "VME Bus"); ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor"); } + +/* + * MSch: initial platform device support for Atari, + * required for EtherNAT/EtherNEC/NetUSBee drivers + */ + +#if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC) +static void isp1160_delay(struct device *dev, int delay) +{ + ndelay(delay); +} +#endif + +#ifdef CONFIG_ATARI_ETHERNAT +/* + * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver + */ + +#define ATARI_ETHERNAT_IRQ 140 + +static struct resource smc91x_resources[] = { + [0] = { + .name = "smc91x-regs", + .start = ATARI_ETHERNAT_PHYS_ADDR, + .end = ATARI_ETHERNAT_PHYS_ADDR + 0xfffff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .name = "smc91x-irq", + .start = ATARI_ETHERNAT_IRQ, + .end = ATARI_ETHERNAT_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = -1, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; + +/* + * ISP 1160 - using the isp116x-hcd module + */ + +#define ATARI_USB_PHYS_ADDR 0x80000012 +#define ATARI_USB_IRQ 139 + +static struct resource isp1160_resources[] = { + [0] = { + .name = "isp1160-data", + .start = ATARI_USB_PHYS_ADDR, + .end = ATARI_USB_PHYS_ADDR + 0x1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .name = "isp1160-regs", + .start = ATARI_USB_PHYS_ADDR + 0x4, + .end = ATARI_USB_PHYS_ADDR + 0x5, + .flags = IORESOURCE_MEM, + }, + [2] = { + .name = "isp1160-irq", + .start = ATARI_USB_IRQ, + .end = ATARI_USB_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +/* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ +static struct isp116x_platform_data isp1160_platform_data = { + /* Enable internal resistors on downstream ports */ + .sel15Kres = 1, + /* On-chip overcurrent protection */ + .oc_enable = 1, + /* INT output polarity */ + .int_act_high = 1, + /* INT edge or level triggered */ + .int_edge_triggered = 0, + + /* WAKEUP pin connected - NOT SUPPORTED */ + /* .remote_wakeup_connected = 0, */ + /* Wakeup by devices on usb bus enabled */ + .remote_wakeup_enable = 0, + .delay = isp1160_delay, +}; + +static struct platform_device isp1160_device = { + .name = "isp116x-hcd", + .id = 0, + .num_resources = ARRAY_SIZE(isp1160_resources), + .resource = isp1160_resources, + .dev = { + .platform_data = &isp1160_platform_data, + }, +}; + +static struct platform_device *atari_ethernat_devices[] __initdata = { + &smc91x_device, + &isp1160_device +}; +#endif /* CONFIG_ATARI_ETHERNAT */ + +#ifdef CONFIG_ATARI_ETHERNEC +/* + * EtherNEC: RTL8019 (NE2000 compatible) Ethernet chipset, + * handled by ne.c driver + */ + +#define ATARI_ETHERNEC_PHYS_ADDR 0xfffa0000 +#define ATARI_ETHERNEC_BASE 0x300 +#define ATARI_ETHERNEC_IRQ IRQ_MFP_TIMER1 + +static struct resource rtl8019_resources[] = { + [0] = { + .name = "rtl8019-regs", + .start = ATARI_ETHERNEC_BASE, + .end = ATARI_ETHERNEC_BASE + 0x20 - 1, + .flags = IORESOURCE_IO, + }, + [1] = { + .name = "rtl8019-irq", + .start = ATARI_ETHERNEC_IRQ, + .end = ATARI_ETHERNEC_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device rtl8019_device = { + .name = "ne", + .id = -1, + .num_resources = ARRAY_SIZE(rtl8019_resources), + .resource = rtl8019_resources, +}; + +/* + * NetUSBee: ISP1160 USB host adapter via ROM-port adapter + */ + +#define ATARI_NETUSBEE_PHYS_ADDR 0xfffa8000 +#define ATARI_NETUSBEE_BASE 0x340 +#define ATARI_NETUSBEE_IRQ IRQ_MFP_TIMER2 + +static struct resource netusbee_resources[] = { + [0] = { + .name = "isp1160-data", + .start = ATARI_NETUSBEE_BASE, + .end = ATARI_NETUSBEE_BASE + 0x1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .name = "isp1160-regs", + .start = ATARI_NETUSBEE_BASE + 0x20, + .end = ATARI_NETUSBEE_BASE + 0x21, + .flags = IORESOURCE_MEM, + }, + [2] = { + .name = "isp1160-irq", + .start = ATARI_NETUSBEE_IRQ, + .end = ATARI_NETUSBEE_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +/* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */ +static struct isp116x_platform_data netusbee_platform_data = { + /* Enable internal resistors on downstream ports */ + .sel15Kres = 1, + /* On-chip overcurrent protection */ + .oc_enable = 1, + /* INT output polarity */ + .int_act_high = 1, + /* INT edge or level triggered */ + .int_edge_triggered = 0, + + /* WAKEUP pin connected - NOT SUPPORTED */ + /* .remote_wakeup_connected = 0, */ + /* Wakeup by devices on usb bus enabled */ + .remote_wakeup_enable = 0, + .delay = isp1160_delay, +}; + +static struct platform_device netusbee_device = { + .name = "isp116x-hcd", + .id = 1, + .num_resources = ARRAY_SIZE(netusbee_resources), + .resource = netusbee_resources, + .dev = { + .platform_data = &netusbee_platform_data, + }, +}; + +static struct platform_device *atari_netusbee_devices[] __initdata = { + &rtl8019_device, + &netusbee_device +}; +#endif /* CONFIG_ATARI_ETHERNEC */ + +int __init atari_platform_init(void) +{ + int rv = 0; + + if (!MACH_IS_ATARI) + return -ENODEV; + +#ifdef CONFIG_ATARI_ETHERNAT + { + unsigned char *enatc_virt; + enatc_virt = (unsigned char *)ioremap((ATARI_ETHERNAT_PHYS_ADDR+0x23), 0xf); + if (hwreg_present(enatc_virt)) { + rv = platform_add_devices(atari_ethernat_devices, + ARRAY_SIZE(atari_ethernat_devices)); + } + iounmap(enatc_virt); + } +#endif + +#ifdef CONFIG_ATARI_ETHERNEC + { + int error; + unsigned char *enec_virt; + enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf); + if (hwreg_present(enec_virt)) { + error = platform_add_devices(atari_netusbee_devices, + ARRAY_SIZE(atari_netusbee_devices)); + if (error && !rv) + rv = error; + } + iounmap(enec_virt); + } +#endif + + return rv; +} + +arch_initcall(atari_platform_init); diff --git a/arch/m68k/include/asm/atarihw.h b/arch/m68k/include/asm/atarihw.h index c0cb363..d887050 100644 --- a/arch/m68k/include/asm/atarihw.h +++ b/arch/m68k/include/asm/atarihw.h @@ -805,5 +805,11 @@ struct MSTE_RTC { #define mste_rtc ((*(volatile struct MSTE_RTC *)MSTE_RTC_BAS)) +/* +** EtherNAT add-on card for Falcon - combined ethernet and USB adapter +*/ + +#define ATARI_ETHERNAT_PHYS_ADDR 0x80000000 + #endif /* linux/atarihw.h */ diff --git a/arch/m68k/include/asm/atariints.h b/arch/m68k/include/asm/atariints.h index 5fc13bd..953e0ac 100644 --- a/arch/m68k/include/asm/atariints.h +++ b/arch/m68k/include/asm/atariints.h @@ -32,7 +32,7 @@ #define VME_SOURCE_BASE 56 #define VME_MAX_SOURCES 16 -#define NUM_ATARI_SOURCES (VME_SOURCE_BASE+VME_MAX_SOURCES-STMFP_SOURCE_BASE) +#define NUM_ATARI_SOURCES 141 /* convert vector number to int source number */ #define IRQ_VECTOR_TO_SOURCE(v) ((v) - ((v) < 0x20 ? 0x18 : (0x40-8))) @@ -94,6 +94,15 @@ #define IRQ_SCCA_RX (52) #define IRQ_SCCA_SPCOND (54) +/* shared MFP timer D interrupts - hires timer for EtherNEC et al. */ +#define IRQ_MFP_TIMER1 (64) +#define IRQ_MFP_TIMER2 (65) +#define IRQ_MFP_TIMER3 (66) +#define IRQ_MFP_TIMER4 (67) +#define IRQ_MFP_TIMER5 (68) +#define IRQ_MFP_TIMER6 (69) +#define IRQ_MFP_TIMER7 (70) +#define IRQ_MFP_TIMER8 (71) #define INT_CLK 24576 /* CLK while int_clk =2.456MHz and divide = 100 */ #define INT_TICKS 246 /* to make sched_time = 99.902... HZ */ diff --git a/arch/m68k/include/asm/cmpxchg.h b/arch/m68k/include/asm/cmpxchg.h index 5c81d0e..bc755bc 100644 --- a/arch/m68k/include/asm/cmpxchg.h +++ b/arch/m68k/include/asm/cmpxchg.h @@ -124,6 +124,9 @@ static inline unsigned long __cmpxchg(volatile void *p, unsigned long old, #define cmpxchg_local(ptr, o, n) \ ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \ (unsigned long)(n), sizeof(*(ptr)))) + +#define cmpxchg64(ptr, o, n) cmpxchg64_local((ptr), (o), (n)) + #else /* diff --git a/arch/m68k/include/asm/delay.h b/arch/m68k/include/asm/delay.h index 12d8fe4..d28fa8f 100644 --- a/arch/m68k/include/asm/delay.h +++ b/arch/m68k/include/asm/delay.h @@ -92,5 +92,28 @@ static inline void __udelay(unsigned long usecs) #define udelay(n) (__builtin_constant_p(n) ? \ ((n) > 20000 ? __bad_udelay() : __const_udelay(n)) : __udelay(n)) +/* + * nanosecond delay: + * + * ((((HZSCALE) >> 11) * (loops_per_jiffy >> 11)) >> 6) is the number of loops + * per microsecond + * + * 1000 / ((((HZSCALE) >> 11) * (loops_per_jiffy >> 11)) >> 6) is the number of + * nanoseconds per loop + * + * So n / ( 1000 / ((((HZSCALE) >> 11) * (loops_per_jiffy >> 11)) >> 6) ) would + * be the number of loops for n nanoseconds + */ + +/* + * The simpler m68k and ColdFire processors do not have a 32*32->64 + * multiply instruction. So we need to handle them a little differently. + * We use a bit of shifting and a single 32*32->32 multiply to get close. + * This is a macro so that the const version can factor out the first + * multiply and shift. + */ +#define HZSCALE (268435456 / (1000000 / HZ)) + +#define ndelay(n) __delay(DIV_ROUND_UP((n) * ((((HZSCALE) >> 11) * (loops_per_jiffy >> 11)) >> 6), 1000)); #endif /* defined(_M68K_DELAY_H) */ diff --git a/arch/m68k/include/asm/io_mm.h b/arch/m68k/include/asm/io_mm.h index a6686d2..ffdf54f4 100644 --- a/arch/m68k/include/asm/io_mm.h +++ b/arch/m68k/include/asm/io_mm.h @@ -63,6 +63,23 @@ #endif #endif /* AMIGA_PCMCIA */ +#ifdef CONFIG_ATARI_ROM_ISA + +#define enec_isa_read_base 0xfffa0000 +#define enec_isa_write_base 0xfffb0000 + +#define ENEC_ISA_IO_B(ioaddr) (enec_isa_read_base+((((unsigned long)(ioaddr))&0x7F)<<9)) +#define ENEC_ISA_IO_W(ioaddr) (enec_isa_read_base+((((unsigned long)(ioaddr))&0x7F)<<9)) +#define ENEC_ISA_MEM_B(madr) (enec_isa_read_base+((((unsigned long)(madr))&0x7F)<<9)) +#define ENEC_ISA_MEM_W(madr) (enec_isa_read_base+((((unsigned long)(madr))&0x7F)<<9)) + +#ifndef MULTI_ISA +#define MULTI_ISA 0 +#else +#undef MULTI_ISA +#define MULTI_ISA 1 +#endif +#endif /* ATARI_ROM_ISA */ #if defined(CONFIG_PCI) && defined(CONFIG_COLDFIRE) @@ -111,14 +128,15 @@ void mcf_pci_outsl(u32 addr, const u32 *buf, u32 len); #define readw(addr) in_le16(addr) #define writew(v, addr) out_le16((addr), (v)) -#elif defined(CONFIG_ISA) +#elif defined(CONFIG_ISA) || defined(CONFIG_ATARI_ROM_ISA) #if MULTI_ISA == 0 #undef MULTI_ISA #endif -#define ISA_TYPE_Q40 (1) -#define ISA_TYPE_AG (2) +#define ISA_TYPE_Q40 (1) +#define ISA_TYPE_AG (2) +#define ISA_TYPE_ENEC (3) #if defined(CONFIG_Q40) && !defined(MULTI_ISA) #define ISA_TYPE ISA_TYPE_Q40 @@ -128,6 +146,10 @@ void mcf_pci_outsl(u32 addr, const u32 *buf, u32 len); #define ISA_TYPE ISA_TYPE_AG #define ISA_SEX 1 #endif +#if defined(CONFIG_ATARI_ROM_ISA) && !defined(MULTI_ISA) +#define ISA_TYPE ISA_TYPE_ENEC +#define ISA_SEX 0 +#endif #ifdef MULTI_ISA extern int isa_type; @@ -152,6 +174,9 @@ static inline u8 __iomem *isa_itb(unsigned long addr) #ifdef CONFIG_AMIGA_PCMCIA case ISA_TYPE_AG: return (u8 __iomem *)AG_ISA_IO_B(addr); #endif +#ifdef CONFIG_ATARI_ROM_ISA + case ISA_TYPE_ENEC: return (u8 __iomem *)ENEC_ISA_IO_B(addr); +#endif default: return NULL; /* avoid warnings, just in case */ } } @@ -165,6 +190,9 @@ static inline u16 __iomem *isa_itw(unsigned long addr) #ifdef CONFIG_AMIGA_PCMCIA case ISA_TYPE_AG: return (u16 __iomem *)AG_ISA_IO_W(addr); #endif +#ifdef CONFIG_ATARI_ROM_ISA + case ISA_TYPE_ENEC: return (u16 __iomem *)ENEC_ISA_IO_W(addr); +#endif default: return NULL; /* avoid warnings, just in case */ } } @@ -188,6 +216,9 @@ static inline u8 __iomem *isa_mtb(unsigned long addr) #ifdef CONFIG_AMIGA_PCMCIA case ISA_TYPE_AG: return (u8 __iomem *)addr; #endif +#ifdef CONFIG_ATARI_ROM_ISA + case ISA_TYPE_ENEC: return (u8 __iomem *)ENEC_ISA_MEM_B(addr); +#endif default: return NULL; /* avoid warnings, just in case */ } } @@ -201,6 +232,9 @@ static inline u16 __iomem *isa_mtw(unsigned long addr) #ifdef CONFIG_AMIGA_PCMCIA case ISA_TYPE_AG: return (u16 __iomem *)addr; #endif +#ifdef CONFIG_ATARI_ROM_ISA + case ISA_TYPE_ENEC: return (u16 __iomem *)ENEC_ISA_MEM_W(addr); +#endif default: return NULL; /* avoid warnings, just in case */ } } @@ -222,6 +256,36 @@ static inline u16 __iomem *isa_mtw(unsigned long addr) (ISA_SEX ? out_be16(isa_mtw((unsigned long)(p)),(val)) \ : out_le16(isa_mtw((unsigned long)(p)),(val))) +#ifdef CONFIG_ATARI_ROM_ISA +#define isa_rom_inb(port) rom_in_8(isa_itb(port)) +#define isa_rom_inw(port) \ + (ISA_SEX ? rom_in_be16(isa_itw(port)) \ + : rom_in_le16(isa_itw(port))) + +#define isa_rom_outb(val, port) rom_out_8(isa_itb(port), (val)) +#define isa_rom_outw(val, port) \ + (ISA_SEX ? rom_out_be16(isa_itw(port), (val)) \ + : rom_out_le16(isa_itw(port), (val))) + +#define isa_rom_readb(p) rom_in_8(isa_mtb((unsigned long)(p))) +#define isa_rom_readw(p) \ + (ISA_SEX ? rom_in_be16(isa_mtw((unsigned long)(p))) \ + : rom_in_le16(isa_mtw((unsigned long)(p)))) +#define isa_rom_readw_swap(p) \ + (ISA_SEX ? rom_in_le16(isa_mtw((unsigned long)(p))) \ + : rom_in_be16(isa_mtw((unsigned long)(p)))) +#define isa_rom_readw_raw(p) rom_in_be16(isa_mtw((unsigned long)(p))) + +#define isa_rom_writeb(val, p) rom_out_8(isa_mtb((unsigned long)(p)), (val)) +#define isa_rom_writew(val, p) \ + (ISA_SEX ? rom_out_be16(isa_mtw((unsigned long)(p)), (val)) \ + : rom_out_le16(isa_mtw((unsigned long)(p)), (val))) +#define isa_rom_writew_swap(val, p) \ + (ISA_SEX ? rom_out_le16(isa_mtw((unsigned long)(p)), (val)) \ + : rom_out_be16(isa_mtw((unsigned long)(p)), (val))) +#define isa_rom_writew_raw(val, p) rom_out_be16(isa_mtw((unsigned long)(p)), (val)) +#endif /* CONFIG_ATARI_ROM_ISA */ + static inline void isa_delay(void) { switch(ISA_TYPE) @@ -232,6 +296,9 @@ static inline void isa_delay(void) #ifdef CONFIG_AMIGA_PCMCIA case ISA_TYPE_AG: break; #endif +#ifdef CONFIG_ATARI_ROM_ISA + case ISA_TYPE_ENEC: break; +#endif default: break; /* avoid warnings */ } } @@ -263,6 +330,29 @@ static inline void isa_delay(void) raw_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr)<<1)) +#ifdef CONFIG_ATARI_ROM_ISA +#define isa_rom_inb_p(p) ({ u8 _v = isa_rom_inb(p); isa_delay(); _v; }) +#define isa_rom_inw_p(p) ({ u16 _v = isa_rom_inw(p); isa_delay(); _v; }) +#define isa_rom_outb_p(v, p) ({ isa_rom_outb((v), (p)); isa_delay(); }) +#define isa_rom_outw_p(v, p) ({ isa_rom_outw((v), (p)); isa_delay(); }) + +#define isa_rom_insb(port, buf, nr) raw_rom_insb(isa_itb(port), (u8 *)(buf), (nr)) + +#define isa_rom_insw(port, buf, nr) \ + (ISA_SEX ? raw_rom_insw(isa_itw(port), (u16 *)(buf), (nr)) : \ + raw_rom_insw_swapw(isa_itw(port), (u16 *)(buf), (nr))) + +#define isa_rom_outsb(port, buf, nr) raw_rom_outsb(isa_itb(port), (u8 *)(buf), (nr)) + +#define isa_rom_outsw(port, buf, nr) \ + (ISA_SEX ? raw_rom_outsw(isa_itw(port), (u16 *)(buf), (nr)) : \ + raw_rom_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr))) +#endif /* CONFIG_ATARI_ROM_ISA */ + +#endif /* CONFIG_ISA || CONFIG_ATARI_ROM_ISA */ + + +#if defined(CONFIG_ISA) && !defined(CONFIG_ATARI_ROM_ISA) #define inb isa_inb #define inb_p isa_inb_p #define outb isa_outb @@ -285,9 +375,43 @@ static inline void isa_delay(void) #define readw isa_readw #define writeb isa_writeb #define writew isa_writew +#endif /* CONFIG_ISA && !CONFIG_ATARI_ROM_ISA */ -#else /* CONFIG_ISA */ - +#ifdef CONFIG_ATARI_ROM_ISA +/* + * kernel with both ROM port ISA and IDE compiled in, those have + * conflicting defs for in/out. Simply consider port < 1024 + * ROM port ISA and everything else regular ISA for IDE. read,write defined + * below. + */ +#define inb(port) ((port) < 1024 ? isa_rom_inb(port) : in_8(port)) +#define inb_p(port) ((port) < 1024 ? isa_rom_inb_p(port) : in_8(port)) +#define inw(port) ((port) < 1024 ? isa_rom_inw(port) : in_le16(port)) +#define inw_p(port) ((port) < 1024 ? isa_rom_inw_p(port) : in_le16(port)) +#define inl isa_inl +#define inl_p isa_inl_p + +#define outb(val, port) ((port) < 1024 ? isa_rom_outb((val), (port)) : out_8((port), (val))) +#define outb_p(val, port) ((port) < 1024 ? isa_rom_outb_p((val), (port)) : out_8((port), (val))) +#define outw(val, port) ((port) < 1024 ? isa_rom_outw((val), (port)) : out_le16((port), (val))) +#define outw_p(val, port) ((port) < 1024 ? isa_rom_outw_p((val), (port)) : out_le16((port), (val))) +#define outl isa_outl +#define outl_p isa_outl_p + +#define insb(port, buf, nr) ((port) < 1024 ? isa_rom_insb((port), (buf), (nr)) : isa_insb((port), (buf), (nr))) +#define insw(port, buf, nr) ((port) < 1024 ? isa_rom_insw((port), (buf), (nr)) : isa_insw((port), (buf), (nr))) +#define insl isa_insl +#define outsb(port, buf, nr) ((port) < 1024 ? isa_rom_outsb((port), (buf), (nr)) : isa_outsb((port), (buf), (nr))) +#define outsw(port, buf, nr) ((port) < 1024 ? isa_rom_outsw((port), (buf), (nr)) : isa_outsw((port), (buf), (nr))) +#define outsl isa_outsl + +#define readb(addr) in_8(addr) +#define writeb(val, addr) out_8((addr), (val)) +#define readw(addr) in_le16(addr) +#define writew(val, addr) out_le16((addr), (val)) +#endif /* CONFIG_ATARI_ROM_ISA */ + +#if !defined(CONFIG_ISA) && !defined(CONFIG_ATARI_ROM_ISA) /* * We need to define dummy functions for GENERIC_IOMAP support. */ @@ -319,7 +443,7 @@ static inline void isa_delay(void) #define readw(addr) in_le16(addr) #define writew(val,addr) out_le16((addr),(val)) -#endif /* CONFIG_ISA */ +#endif /* !CONFIG_ISA && !CONFIG_ATARI_ROM_ISA */ #define readl(addr) in_le32(addr) #define writel(val,addr) out_le32((addr),(val)) diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h index c1155f0..81ca118 100644 --- a/arch/m68k/include/asm/irq.h +++ b/arch/m68k/include/asm/irq.h @@ -6,12 +6,16 @@ * different m68k hosts compiled into the kernel. * Currently the Atari has 72 and the Amiga 24, but if both are * supported in the kernel it is better to make room for 72. + * With EtherNAT add-on card on Atari, the highest interrupt + * number is 140 so NR_IRQS needs to be 141. */ #if defined(CONFIG_COLDFIRE) #define NR_IRQS 256 #elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || defined(CONFIG_SUN3X) #define NR_IRQS 200 -#elif defined(CONFIG_ATARI) || defined(CONFIG_MAC) +#elif defined(CONFIG_ATARI) +#define NR_IRQS 141 +#elif defined(CONFIG_MAC) #define NR_IRQS 72 #elif defined(CONFIG_Q40) #define NR_IRQS 43 diff --git a/arch/m68k/include/asm/raw_io.h b/arch/m68k/include/asm/raw_io.h index d9eb983..932faa3 100644 --- a/arch/m68k/include/asm/raw_io.h +++ b/arch/m68k/include/asm/raw_io.h @@ -10,7 +10,7 @@ #ifdef __KERNEL__ -#include <asm/types.h> +#include <asm/byteorder.h> /* Values for nocacheflag and cmode */ @@ -60,6 +60,57 @@ extern void __iounmap(void *addr, unsigned long size); #define __raw_writew(val,addr) out_be16((addr),(val)) #define __raw_writel(val,addr) out_be32((addr),(val)) +/* + * Atari ROM port (cartridge port) ISA adapter, used for the EtherNEC NE2000 + * network card driver. + * The ISA adapter connects address lines A9-A13 to ISA address lines A0-A4, + * and hardwires the rest of the ISA addresses for a base address of 0x300. + * + * Data lines D8-D15 are connected to ISA data lines D0-D7 for reading. + * For writes, address lines A1-A8 are latched to ISA data lines D0-D7 + * (meaning the bit pattern on A1-A8 can be read back as byte). + * + * Read and write operations are distinguished by the base address used: + * reads are from the ROM A side range, writes are through the B side range + * addresses (A side base + 0x10000). + * + * Reads and writes are byte only. + * + * 16 bit reads and writes are necessary for the NetUSBee adapter's USB + * chipset - 16 bit words are read straight off the ROM port while 16 bit + * reads are split into two byte writes. The low byte is latched to the + * NetUSBee buffer by a read from the _read_ window (with the data pattern + * asserted as A1-A8 address pattern). The high byte is then written to the + * write range as usual, completing the write cycle. + */ + +#if defined(CONFIG_ATARI_ROM_ISA) +#define rom_in_8(addr) \ + ({ u16 __v = (*(__force volatile u16 *) (addr)); __v >>= 8; __v; }) +#define rom_in_be16(addr) \ + ({ u16 __v = (*(__force volatile u16 *) (addr)); __v; }) +#define rom_in_le16(addr) \ + ({ u16 __v = le16_to_cpu(*(__force volatile u16 *) (addr)); __v; }) + +#define rom_out_8(addr, b) \ + ({u8 __w, __v = (b); u32 _addr = ((u32) (addr)); \ + __w = ((*(__force volatile u8 *) ((_addr | 0x10000) + (__v<<1)))); }) +#define rom_out_be16(addr, w) \ + ({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \ + __w = ((*(__force volatile u16 *) ((_addr & 0xFFFF0000UL) + ((__v & 0xFF)<<1)))); \ + __w = ((*(__force volatile u16 *) ((_addr | 0x10000) + ((__v >> 8)<<1)))); }) +#define rom_out_le16(addr, w) \ + ({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \ + __w = ((*(__force volatile u16 *) ((_addr & 0xFFFF0000UL) + ((__v >> 8)<<1)))); \ + __w = ((*(__force volatile u16 *) ((_addr | 0x10000) + ((__v & 0xFF)<<1)))); }) + +#define raw_rom_inb rom_in_8 +#define raw_rom_inw rom_in_be16 + +#define raw_rom_outb(val, port) rom_out_8((port), (val)) +#define raw_rom_outw(val, port) rom_out_be16((port), (val)) +#endif /* CONFIG_ATARI_ROM_ISA */ + static inline void raw_insb(volatile u8 __iomem *port, u8 *buf, unsigned int len) { unsigned int i; @@ -342,6 +393,62 @@ static inline void raw_outsw_swapw(volatile u16 __iomem *port, const u16 *buf, : "d0", "a0", "a1", "d6"); } + +#if defined(CONFIG_ATARI_ROM_ISA) +static inline void raw_rom_insb(volatile u8 __iomem *port, u8 *buf, unsigned int len) +{ + unsigned int i; + + for (i = 0; i < len; i++) + *buf++ = rom_in_8(port); +} + +static inline void raw_rom_outsb(volatile u8 __iomem *port, const u8 *buf, + unsigned int len) +{ + unsigned int i; + + for (i = 0; i < len; i++) + rom_out_8(port, *buf++); +} + +static inline void raw_rom_insw(volatile u16 __iomem *port, u16 *buf, + unsigned int nr) +{ + unsigned int i; + + for (i = 0; i < nr; i++) + *buf++ = rom_in_be16(port); +} + +static inline void raw_rom_outsw(volatile u16 __iomem *port, const u16 *buf, + unsigned int nr) +{ + unsigned int i; + + for (i = 0; i < nr; i++) + rom_out_be16(port, *buf++); +} + +static inline void raw_rom_insw_swapw(volatile u16 __iomem *port, u16 *buf, + unsigned int nr) +{ + unsigned int i; + + for (i = 0; i < nr; i++) + *buf++ = rom_in_le16(port); +} + +static inline void raw_rom_outsw_swapw(volatile u16 __iomem *port, const u16 *buf, + unsigned int nr) +{ + unsigned int i; + + for (i = 0; i < nr; i++) + rom_out_le16(port, *buf++); +} +#endif /* CONFIG_ATARI_ROM_ISA */ + #endif /* __KERNEL__ */ #endif /* _RAW_IO_H */ diff --git a/arch/m68k/include/asm/string.h b/arch/m68k/include/asm/string.h index 3219845..9aea9f1 100644 --- a/arch/m68k/include/asm/string.h +++ b/arch/m68k/include/asm/string.h @@ -4,15 +4,6 @@ #include <linux/types.h> #include <linux/compiler.h> -static inline size_t __kernel_strlen(const char *s) -{ - const char *sc; - - for (sc = s; *sc++; ) - ; - return sc - s - 1; -} - static inline char *__kernel_strcpy(char *dest, const char *src) { char *xdest = dest; @@ -27,11 +18,6 @@ static inline char *__kernel_strcpy(char *dest, const char *src) #ifndef __IN_STRING_C -#define __HAVE_ARCH_STRLEN -#define strlen(s) (__builtin_constant_p(s) ? \ - __builtin_strlen(s) : \ - __kernel_strlen(s)) - #define __HAVE_ARCH_STRNLEN static inline size_t strnlen(const char *s, size_t count) { diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h index 6cd9267..014f288 100644 --- a/arch/m68k/include/asm/unistd.h +++ b/arch/m68k/include/asm/unistd.h @@ -32,12 +32,4 @@ #define __ARCH_WANT_SYS_FORK #define __ARCH_WANT_SYS_VFORK -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") - #endif /* _ASM_M68K_UNISTD_H_ */ diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c index d538694..c55ff71 100644 --- a/arch/m68k/kernel/process.c +++ b/arch/m68k/kernel/process.c @@ -51,40 +51,16 @@ unsigned long thread_saved_pc(struct task_struct *tsk) return sw->retpc; } -/* - * The idle loop on an m68k.. - */ -static void default_idle(void) +void arch_cpu_idle(void) { - if (!need_resched()) #if defined(MACH_ATARI_ONLY) - /* block out HSYNC on the atari (falcon) */ - __asm__("stop #0x2200" : : : "cc"); + /* block out HSYNC on the atari (falcon) */ + __asm__("stop #0x2200" : : : "cc"); #else - __asm__("stop #0x2000" : : : "cc"); + __asm__("stop #0x2000" : : : "cc"); #endif } -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) { - rcu_idle_enter(); - while (!need_resched()) - idle(); - rcu_idle_exit(); - schedule_preempt_disabled(); - } -} - void machine_restart(char * __unused) { if (mach_reset) diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c index 80cfbe5..e67e531 100644 --- a/arch/m68k/kernel/setup_mm.c +++ b/arch/m68k/kernel/setup_mm.c @@ -381,6 +381,12 @@ void __init setup_arch(char **cmdline_p) isa_sex = 1; } #endif +#ifdef CONFIG_ATARI_ROM_ISA + if (MACH_IS_ATARI) { + isa_type = ISA_TYPE_ENEC; + isa_sex = 0; + } +#endif #endif } diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c index f32ab22..88fcd8c 100644 --- a/arch/m68k/kernel/traps.c +++ b/arch/m68k/kernel/traps.c @@ -992,18 +992,6 @@ void show_stack(struct task_struct *task, unsigned long *stack) } /* - * The architecture-independent backtrace generator - */ -void dump_stack(void) -{ - unsigned long stack; - - show_trace(&stack); -} - -EXPORT_SYMBOL(dump_stack); - -/* * The vector number returned in the frame pointer may also contain * the "fs" (Fault Status) bits on ColdFire. These are in the bottom * 2 bits, and upper 2 bits. So we need to mask out the real vector diff --git a/arch/m68k/lib/string.c b/arch/m68k/lib/string.c index b9a57ab..4d61fa8 100644 --- a/arch/m68k/lib/string.c +++ b/arch/m68k/lib/string.c @@ -17,6 +17,6 @@ EXPORT_SYMBOL(strcpy); char *strcat(char *dest, const char *src) { - return __kernel_strcpy(dest + __kernel_strlen(dest), src); + return __kernel_strcpy(dest + strlen(dest), src); } EXPORT_SYMBOL(strcat); diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index 519aad8..1af2ca3 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c @@ -110,18 +110,7 @@ void __init paging_init(void) void free_initmem(void) { #ifndef CONFIG_MMU_SUN3 - unsigned long addr; - - addr = (unsigned long) __init_begin; - for (; addr < ((unsigned long) __init_end); addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } - pr_notice("Freeing unused kernel memory: %luk freed (0x%x - 0x%x)\n", - (addr - (unsigned long) __init_begin) >> 10, - (unsigned int) __init_begin, (unsigned int) __init_end); + free_initmem_default(0); #endif /* CONFIG_MMU_SUN3 */ } @@ -213,15 +202,6 @@ void __init mem_init(void) #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++; - } - pr_notice("Freeing initrd memory: %dk freed\n", - pages << (PAGE_SHIFT - 10)); + free_reserved_area(start, end, 0, "initrd"); } #endif diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig index afc8973..b06b418 100644 --- a/arch/metag/Kconfig +++ b/arch/metag/Kconfig @@ -25,6 +25,7 @@ config METAG select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP select HAVE_MOD_ARCH_SPECIFIC + select HAVE_OPROFILE select HAVE_PERF_EVENTS select HAVE_SYSCALL_TRACEPOINTS select IRQ_DOMAIN @@ -209,6 +210,9 @@ config METAG_PERFCOUNTER_IRQS When disabled, Performance Counters information will be collected based on Timer Interrupt. +config HW_PERF_EVENTS + def_bool METAG_PERFCOUNTER_IRQS && PERF_EVENTS + config METAG_DA bool "DA support" help diff --git a/arch/metag/Makefile b/arch/metag/Makefile index 81bd6a1..b566116 100644 --- a/arch/metag/Makefile +++ b/arch/metag/Makefile @@ -49,6 +49,8 @@ core-y += arch/metag/mm/ libs-y += arch/metag/lib/ libs-y += arch/metag/tbx/ +drivers-$(CONFIG_OPROFILE) += arch/metag/oprofile/ + boot := arch/metag/boot boot_targets += uImage diff --git a/arch/metag/boot/dts/Makefile b/arch/metag/boot/dts/Makefile index e0b5afd..dbd95217 100644 --- a/arch/metag/boot/dts/Makefile +++ b/arch/metag/boot/dts/Makefile @@ -4,13 +4,17 @@ dtb-y += skeleton.dtb builtindtb-y := skeleton ifneq ($(CONFIG_METAG_BUILTIN_DTB_NAME),"") - builtindtb-y := $(CONFIG_METAG_BUILTIN_DTB_NAME) + builtindtb-y := $(patsubst "%",%,$(CONFIG_METAG_BUILTIN_DTB_NAME)) endif -obj-$(CONFIG_METAG_BUILTIN_DTB) += $(patsubst "%",%,$(builtindtb-y)).dtb.o + +dtb-$(CONFIG_METAG_BUILTIN_DTB) += $(builtindtb-y).dtb +obj-$(CONFIG_METAG_BUILTIN_DTB) += $(builtindtb-y).dtb.o targets += dtbs targets += $(dtb-y) +.SECONDARY: $(obj)/$(builtindtb-y).dtb.S + dtbs: $(addprefix $(obj)/, $(dtb-y)) -clean-files += *.dtb +clean-files += *.dtb *.dtb.S diff --git a/arch/metag/configs/meta1_defconfig b/arch/metag/configs/meta1_defconfig index c35a75e..01cd67e 100644 --- a/arch/metag/configs/meta1_defconfig +++ b/arch/metag/configs/meta1_defconfig @@ -1,6 +1,5 @@ # CONFIG_LOCALVERSION_AUTO is not set # CONFIG_SWAP is not set -CONFIG_LOG_BUF_SHIFT=13 CONFIG_SYSFS_DEPRECATED=y CONFIG_SYSFS_DEPRECATED_V2=y CONFIG_KALLSYMS_ALL=y diff --git a/arch/metag/configs/meta2_defconfig b/arch/metag/configs/meta2_defconfig index fb31484..643392b 100644 --- a/arch/metag/configs/meta2_defconfig +++ b/arch/metag/configs/meta2_defconfig @@ -1,7 +1,6 @@ # CONFIG_LOCALVERSION_AUTO is not set # CONFIG_SWAP is not set CONFIG_SYSVIPC=y -CONFIG_LOG_BUF_SHIFT=13 CONFIG_SYSFS_DEPRECATED=y CONFIG_SYSFS_DEPRECATED_V2=y CONFIG_KALLSYMS_ALL=y diff --git a/arch/metag/configs/meta2_smp_defconfig b/arch/metag/configs/meta2_smp_defconfig index 6c7b777..f330673 100644 --- a/arch/metag/configs/meta2_smp_defconfig +++ b/arch/metag/configs/meta2_smp_defconfig @@ -1,7 +1,6 @@ # CONFIG_LOCALVERSION_AUTO is not set # CONFIG_SWAP is not set CONFIG_SYSVIPC=y -CONFIG_LOG_BUF_SHIFT=13 CONFIG_SYSFS_DEPRECATED=y CONFIG_SYSFS_DEPRECATED_V2=y CONFIG_KALLSYMS_ALL=y diff --git a/arch/metag/include/asm/metag_mem.h b/arch/metag/include/asm/metag_mem.h index 3f7b54d..aa5a076 100644 --- a/arch/metag/include/asm/metag_mem.h +++ b/arch/metag/include/asm/metag_mem.h @@ -700,6 +700,9 @@ #define SYSC_xCPARTG_AND_S 8 #define SYSC_xCPARTL_OR_BITS 0x000F0000 /* Ors into top 4 bits */ #define SYSC_xCPARTL_OR_S 16 +#ifdef METAC_2_1 +#define SYSC_DCPART_GCON_BIT 0x00100000 /* Coherent shared local */ +#endif /* METAC_2_1 */ #define SYSC_xCPARTG_OR_BITS 0x0F000000 /* Ors into top 4 bits */ #define SYSC_xCPARTG_OR_S 24 #define SYSC_CWRMODE_BIT 0x80000000 /* Write cache mode bit */ diff --git a/arch/metag/include/asm/thread_info.h b/arch/metag/include/asm/thread_info.h index 0ecd34d..7c4a330 100644 --- a/arch/metag/include/asm/thread_info.h +++ b/arch/metag/include/asm/thread_info.h @@ -150,6 +150,4 @@ static inline int kstack_end(void *addr) #define _TIF_WORK_MASK (_TIF_ALLWORK_MASK & ~(_TIF_SYSCALL_TRACE | \ _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP)) -#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) - #endif /* _ASM_THREAD_INFO_H */ diff --git a/arch/metag/include/uapi/asm/Kbuild b/arch/metag/include/uapi/asm/Kbuild index 876c71f..84e09fe 100644 --- a/arch/metag/include/uapi/asm/Kbuild +++ b/arch/metag/include/uapi/asm/Kbuild @@ -2,6 +2,7 @@ include include/uapi/asm-generic/Kbuild.asm header-y += byteorder.h +header-y += ech.h header-y += ptrace.h header-y += resource.h header-y += sigcontext.h diff --git a/arch/metag/include/uapi/asm/ech.h b/arch/metag/include/uapi/asm/ech.h new file mode 100644 index 0000000..ac94d1c --- /dev/null +++ b/arch/metag/include/uapi/asm/ech.h @@ -0,0 +1,15 @@ +#ifndef _UAPI_METAG_ECH_H +#define _UAPI_METAG_ECH_H + +/* + * These bits can be set in the top half of the D0.8 register when DSP context + * switching is enabled, in order to support partial DSP context save/restore. + */ + +#define TBICTX_XEXT_BIT 0x1000 /* Enable extended context save */ +#define TBICTX_XTDP_BIT 0x0800 /* DSP accumulators/RAM/templates */ +#define TBICTX_XHL2_BIT 0x0400 /* Hardware loops */ +#define TBICTX_XAXX_BIT 0x0200 /* Extended AX registers (A*.4-7) */ +#define TBICTX_XDX8_BIT 0x0100 /* Extended DX registers (D*.8-15) */ + +#endif /* _UAPI_METAG_ECH_H */ diff --git a/arch/metag/kernel/cachepart.c b/arch/metag/kernel/cachepart.c index 3a589dfb..954548b 100644 --- a/arch/metag/kernel/cachepart.c +++ b/arch/metag/kernel/cachepart.c @@ -24,15 +24,21 @@ unsigned int get_dcache_size(void) { unsigned int config2 = metag_in32(METAC_CORE_CONFIG2); - return 0x1000 << ((config2 & METAC_CORECFG2_DCSZ_BITS) - >> METAC_CORECFG2_DCSZ_S); + unsigned int sz = 0x1000 << ((config2 & METAC_CORECFG2_DCSZ_BITS) + >> METAC_CORECFG2_DCSZ_S); + if (config2 & METAC_CORECFG2_DCSMALL_BIT) + sz >>= 6; + return sz; } unsigned int get_icache_size(void) { unsigned int config2 = metag_in32(METAC_CORE_CONFIG2); - return 0x1000 << ((config2 & METAC_CORE_C2ICSZ_BITS) - >> METAC_CORE_C2ICSZ_S); + unsigned int sz = 0x1000 << ((config2 & METAC_CORE_C2ICSZ_BITS) + >> METAC_CORE_C2ICSZ_S); + if (config2 & METAC_CORECFG2_ICSMALL_BIT) + sz >>= 6; + return sz; } unsigned int get_global_dcache_size(void) @@ -61,7 +67,7 @@ static unsigned int get_thread_cache_size(unsigned int cache, int thread_id) return 0; #if PAGE_OFFSET >= LINGLOBAL_BASE /* Checking for global cache */ - cache_size = (cache == DCACHE ? get_global_dache_size() : + cache_size = (cache == DCACHE ? get_global_dcache_size() : get_global_icache_size()); offset = 8; #else diff --git a/arch/metag/kernel/da.c b/arch/metag/kernel/da.c index 52aabb6..a35dbed 100644 --- a/arch/metag/kernel/da.c +++ b/arch/metag/kernel/da.c @@ -5,12 +5,14 @@ */ +#include <linux/export.h> #include <linux/io.h> #include <linux/kernel.h> #include <asm/da.h> #include <asm/metag_mem.h> bool _metag_da_present; +EXPORT_SYMBOL_GPL(_metag_da_present); int __init metag_da_probe(void) { diff --git a/arch/metag/kernel/head.S b/arch/metag/kernel/head.S index 969dffa..713f71d 100644 --- a/arch/metag/kernel/head.S +++ b/arch/metag/kernel/head.S @@ -1,6 +1,7 @@ ! Copyright 2005,2006,2007,2009 Imagination Technologies #include <linux/init.h> +#include <asm/metag_mem.h> #include <generated/asm-offsets.h> #undef __exit @@ -48,6 +49,13 @@ __exit: .global _secondary_startup .type _secondary_startup,function _secondary_startup: +#if CONFIG_PAGE_OFFSET < LINGLOBAL_BASE + ! In case GCOn has just been turned on we need to fence any writes that + ! the boot thread might have performed prior to coherency taking effect. + MOVT D0Re0,#HI(LINSYSEVENT_WR_ATOMIC_UNLOCK) + MOV D1Re0,#0 + SETD [D0Re0], D1Re0 +#endif MOVT A0StP,#HI(_secondary_data_stack) ADD A0StP,A0StP,#LO(_secondary_data_stack) GETD A0StP,[A0StP] diff --git a/arch/metag/kernel/perf/perf_event.c b/arch/metag/kernel/perf/perf_event.c index a876d5f..3665694 100644 --- a/arch/metag/kernel/perf/perf_event.c +++ b/arch/metag/kernel/perf/perf_event.c @@ -22,9 +22,9 @@ #include <linux/slab.h> #include <asm/core_reg.h> -#include <asm/hwthread.h> #include <asm/io.h> #include <asm/irq.h> +#include <asm/processor.h> #include "perf_event.h" @@ -40,10 +40,10 @@ static DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events); /* PMU admin */ const char *perf_pmu_name(void) { - if (metag_pmu) - return metag_pmu->pmu.name; + if (!metag_pmu) + return NULL; - return NULL; + return metag_pmu->name; } EXPORT_SYMBOL_GPL(perf_pmu_name); @@ -171,6 +171,7 @@ static int metag_pmu_event_init(struct perf_event *event) switch (event->attr.type) { case PERF_TYPE_HARDWARE: case PERF_TYPE_HW_CACHE: + case PERF_TYPE_RAW: err = _hw_perf_event_init(event); break; @@ -211,9 +212,10 @@ again: /* * Calculate the delta and add it to the counter. */ - delta = new_raw_count - prev_raw_count; + delta = (new_raw_count - prev_raw_count) & MAX_PERIOD; local64_add(delta, &event->count); + local64_sub(delta, &hwc->period_left); } int metag_pmu_event_set_period(struct perf_event *event, @@ -223,6 +225,10 @@ int metag_pmu_event_set_period(struct perf_event *event, s64 period = hwc->sample_period; int ret = 0; + /* The period may have been changed */ + if (unlikely(period != hwc->last_period)) + left += period - hwc->last_period; + if (unlikely(left <= -period)) { left = period; local64_set(&hwc->period_left, left); @@ -240,8 +246,10 @@ int metag_pmu_event_set_period(struct perf_event *event, if (left > (s64)metag_pmu->max_period) left = metag_pmu->max_period; - if (metag_pmu->write) - metag_pmu->write(idx, (u64)(-left) & MAX_PERIOD); + if (metag_pmu->write) { + local64_set(&hwc->prev_count, -(s32)left); + metag_pmu->write(idx, -left & MAX_PERIOD); + } perf_event_update_userpage(event); @@ -549,6 +557,10 @@ static int _hw_perf_event_init(struct perf_event *event) if (err) return err; break; + + case PERF_TYPE_RAW: + mapping = attr->config; + break; } /* Return early if the event is unsupported */ @@ -610,15 +622,13 @@ static void metag_pmu_enable_counter(struct hw_perf_event *event, int idx) WARN_ONCE((config != 0x100), "invalid configuration (%d) for counter (%d)\n", config, idx); - - /* Reset the cycle count */ - __core_reg_set(TXTACTCYC, 0); + local64_set(&event->prev_count, __core_reg_get(TXTACTCYC)); goto unlock; } /* Check for a core internal or performance channel event. */ if (tmp) { - void *perf_addr = (void *)PERF_COUNT(idx); + void *perf_addr; /* * Anything other than a cycle count will write the low- @@ -632,9 +642,14 @@ static void metag_pmu_enable_counter(struct hw_perf_event *event, int idx) case 0xf0: perf_addr = (void *)PERF_CHAN(idx); break; + + default: + perf_addr = NULL; + break; } - metag_out32((tmp & 0x0f), perf_addr); + if (perf_addr) + metag_out32((config & 0x0f), perf_addr); /* * Now we use the high nibble as the performance event to @@ -643,13 +658,21 @@ static void metag_pmu_enable_counter(struct hw_perf_event *event, int idx) config = tmp >> 4; } - /* - * Enabled counters start from 0. Early cores clear the count on - * write but newer cores don't, so we make sure that the count is - * set to 0. - */ tmp = ((config & 0xf) << 28) | - ((1 << 24) << cpu_2_hwthread_id[get_cpu()]); + ((1 << 24) << hard_processor_id()); + if (metag_pmu->max_period) + /* + * Cores supporting overflow interrupts may have had the counter + * set to a specific value that needs preserving. + */ + tmp |= metag_in32(PERF_COUNT(idx)) & 0x00ffffff; + else + /* + * Older cores reset the counter on write, so prev_count needs + * resetting too so we can calculate a correct delta. + */ + local64_set(&event->prev_count, 0); + metag_out32(tmp, PERF_COUNT(idx)); unlock: raw_spin_unlock_irqrestore(&events->pmu_lock, flags); @@ -693,9 +716,8 @@ static u64 metag_pmu_read_counter(int idx) { u32 tmp = 0; - /* The act of reading the cycle counter also clears it */ if (METAG_INST_COUNTER == idx) { - __core_reg_swap(TXTACTCYC, tmp); + tmp = __core_reg_get(TXTACTCYC); goto out; } @@ -764,10 +786,16 @@ static irqreturn_t metag_pmu_counter_overflow(int irq, void *dev) /* * Enable the counter again once core overflow processing has - * completed. + * completed. Note the counter value may have been modified while it was + * inactive to set it up ready for the next interrupt. */ - if (!perf_event_overflow(event, &sampledata, regs)) + if (!perf_event_overflow(event, &sampledata, regs)) { + __global_lock2(flags); + counter = (counter & 0xff000000) | + (metag_in32(PERF_COUNT(idx)) & 0x00ffffff); metag_out32(counter, PERF_COUNT(idx)); + __global_unlock2(flags); + } return IRQ_HANDLED; } @@ -830,7 +858,7 @@ static int __init init_hw_perf_events(void) metag_pmu->max_period = 0; } - metag_pmu->name = "Meta 2"; + metag_pmu->name = "meta2"; metag_pmu->version = version; metag_pmu->pmu = pmu; } diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c index c6efe62..483dff9 100644 --- a/arch/metag/kernel/process.c +++ b/arch/metag/kernel/process.c @@ -22,6 +22,7 @@ #include <linux/pm.h> #include <linux/syscalls.h> #include <linux/uaccess.h> +#include <linux/smp.h> #include <asm/core_reg.h> #include <asm/user_gateway.h> #include <asm/tcm.h> @@ -31,7 +32,7 @@ /* * Wait for the next interrupt and enable local interrupts */ -static inline void arch_idle(void) +void arch_cpu_idle(void) { int tmp; @@ -59,36 +60,12 @@ static inline void arch_idle(void) : "r" (get_trigger_mask())); } -void cpu_idle(void) -{ - set_thread_flag(TIF_POLLING_NRFLAG); - - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - - while (!need_resched()) { - /* - * We need to disable interrupts here to ensure we don't - * miss a wakeup call. - */ - local_irq_disable(); - if (!need_resched()) { #ifdef CONFIG_HOTPLUG_CPU - if (cpu_is_offline(smp_processor_id())) - cpu_die(); -#endif - arch_idle(); - } else { - local_irq_enable(); - } - } - - rcu_idle_exit(); - tick_nohz_idle_exit(); - schedule_preempt_disabled(); - } +void arch_cpu_idle_dead(void) +{ + cpu_die(); } +#endif void (*pm_power_off)(void); EXPORT_SYMBOL(pm_power_off); @@ -152,6 +129,8 @@ void show_regs(struct pt_regs *regs) "D1.7 " }; + show_regs_print_info(KERN_INFO); + pr_info(" pt_regs @ %p\n", regs); pr_info(" SaveMask = 0x%04hx\n", regs->ctx.SaveMask); pr_info(" Flags = 0x%04hx (%c%c%c%c)\n", regs->ctx.Flags, diff --git a/arch/metag/kernel/ptrace.c b/arch/metag/kernel/ptrace.c index 47a8828..7563628 100644 --- a/arch/metag/kernel/ptrace.c +++ b/arch/metag/kernel/ptrace.c @@ -288,10 +288,36 @@ static int metag_rp_state_set(struct task_struct *target, return metag_rp_state_copyin(regs, pos, count, kbuf, ubuf); } +static int metag_tls_get(struct task_struct *target, + const struct user_regset *regset, + unsigned int pos, unsigned int count, + void *kbuf, void __user *ubuf) +{ + void __user *tls = target->thread.tls_ptr; + return user_regset_copyout(&pos, &count, &kbuf, &ubuf, &tls, 0, -1); +} + +static int metag_tls_set(struct task_struct *target, + const struct user_regset *regset, + unsigned int pos, unsigned int count, + const void *kbuf, const void __user *ubuf) +{ + int ret; + void __user *tls; + + ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &tls, 0, -1); + if (ret) + return ret; + + target->thread.tls_ptr = tls; + return ret; +} + enum metag_regset { REGSET_GENERAL, REGSET_CBUF, REGSET_READPIPE, + REGSET_TLS, }; static const struct user_regset metag_regsets[] = { @@ -319,6 +345,14 @@ static const struct user_regset metag_regsets[] = { .get = metag_rp_state_get, .set = metag_rp_state_set, }, + [REGSET_TLS] = { + .core_note_type = NT_METAG_TLS, + .n = 1, + .size = sizeof(void *), + .align = sizeof(void *), + .get = metag_tls_get, + .set = metag_tls_set, + }, }; static const struct user_regset_view user_metag_view = { diff --git a/arch/metag/kernel/setup.c b/arch/metag/kernel/setup.c index 8792461..4f5726f 100644 --- a/arch/metag/kernel/setup.c +++ b/arch/metag/kernel/setup.c @@ -124,6 +124,7 @@ struct machine_desc *machine_desc __initdata; u8 cpu_2_hwthread_id[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = BAD_HWTHREAD_ID }; +EXPORT_SYMBOL_GPL(cpu_2_hwthread_id); /* * Map a hardware thread ID to a Linux CPU number diff --git a/arch/metag/kernel/smp.c b/arch/metag/kernel/smp.c index 4b6d1f14..f443ec9 100644 --- a/arch/metag/kernel/smp.c +++ b/arch/metag/kernel/smp.c @@ -28,6 +28,8 @@ #include <asm/cachepart.h> #include <asm/core_reg.h> #include <asm/cpu.h> +#include <asm/global_lock.h> +#include <asm/metag_mem.h> #include <asm/mmu_context.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> @@ -37,6 +39,9 @@ #include <asm/hwthread.h> #include <asm/traps.h> +#define SYSC_DCPART(n) (SYSC_DCPART0 + SYSC_xCPARTn_STRIDE * (n)) +#define SYSC_ICPART(n) (SYSC_ICPART0 + SYSC_xCPARTn_STRIDE * (n)) + DECLARE_PER_CPU(PTBI, pTBI); void *secondary_data_stack; @@ -99,6 +104,114 @@ int __cpuinit boot_secondary(unsigned int thread, struct task_struct *idle) return 0; } +/** + * describe_cachepart_change: describe a change to cache partitions. + * @thread: Hardware thread number. + * @label: Label of cache type, e.g. "dcache" or "icache". + * @sz: Total size of the cache. + * @old: Old cache partition configuration (*CPART* register). + * @new: New cache partition configuration (*CPART* register). + * + * If the cache partition has changed, prints a message to the log describing + * those changes. + */ +static __cpuinit void describe_cachepart_change(unsigned int thread, + const char *label, + unsigned int sz, + unsigned int old, + unsigned int new) +{ + unsigned int lor1, land1, gor1, gand1; + unsigned int lor2, land2, gor2, gand2; + unsigned int diff = old ^ new; + + if (!diff) + return; + + pr_info("Thread %d: %s partition changed:", thread, label); + if (diff & (SYSC_xCPARTL_OR_BITS | SYSC_xCPARTL_AND_BITS)) { + lor1 = (old & SYSC_xCPARTL_OR_BITS) >> SYSC_xCPARTL_OR_S; + lor2 = (new & SYSC_xCPARTL_OR_BITS) >> SYSC_xCPARTL_OR_S; + land1 = (old & SYSC_xCPARTL_AND_BITS) >> SYSC_xCPARTL_AND_S; + land2 = (new & SYSC_xCPARTL_AND_BITS) >> SYSC_xCPARTL_AND_S; + pr_cont(" L:%#x+%#x->%#x+%#x", + (lor1 * sz) >> 4, + ((land1 + 1) * sz) >> 4, + (lor2 * sz) >> 4, + ((land2 + 1) * sz) >> 4); + } + if (diff & (SYSC_xCPARTG_OR_BITS | SYSC_xCPARTG_AND_BITS)) { + gor1 = (old & SYSC_xCPARTG_OR_BITS) >> SYSC_xCPARTG_OR_S; + gor2 = (new & SYSC_xCPARTG_OR_BITS) >> SYSC_xCPARTG_OR_S; + gand1 = (old & SYSC_xCPARTG_AND_BITS) >> SYSC_xCPARTG_AND_S; + gand2 = (new & SYSC_xCPARTG_AND_BITS) >> SYSC_xCPARTG_AND_S; + pr_cont(" G:%#x+%#x->%#x+%#x", + (gor1 * sz) >> 4, + ((gand1 + 1) * sz) >> 4, + (gor2 * sz) >> 4, + ((gand2 + 1) * sz) >> 4); + } + if (diff & SYSC_CWRMODE_BIT) + pr_cont(" %sWR", + (new & SYSC_CWRMODE_BIT) ? "+" : "-"); + if (diff & SYSC_DCPART_GCON_BIT) + pr_cont(" %sGCOn", + (new & SYSC_DCPART_GCON_BIT) ? "+" : "-"); + pr_cont("\n"); +} + +/** + * setup_smp_cache: ensure cache coherency for new SMP thread. + * @thread: New hardware thread number. + * + * Ensures that coherency is enabled and that the threads share the same cache + * partitions. + */ +static __cpuinit void setup_smp_cache(unsigned int thread) +{ + unsigned int this_thread, lflags; + unsigned int dcsz, dcpart_this, dcpart_old, dcpart_new; + unsigned int icsz, icpart_old, icpart_new; + + /* + * Copy over the current thread's cache partition configuration to the + * new thread so that they share cache partitions. + */ + __global_lock2(lflags); + this_thread = hard_processor_id(); + /* Share dcache partition */ + dcpart_this = metag_in32(SYSC_DCPART(this_thread)); + dcpart_old = metag_in32(SYSC_DCPART(thread)); + dcpart_new = dcpart_this; +#if PAGE_OFFSET < LINGLOBAL_BASE + /* + * For the local data cache to be coherent the threads must also have + * GCOn enabled. + */ + dcpart_new |= SYSC_DCPART_GCON_BIT; + metag_out32(dcpart_new, SYSC_DCPART(this_thread)); +#endif + metag_out32(dcpart_new, SYSC_DCPART(thread)); + /* Share icache partition too */ + icpart_new = metag_in32(SYSC_ICPART(this_thread)); + icpart_old = metag_in32(SYSC_ICPART(thread)); + metag_out32(icpart_new, SYSC_ICPART(thread)); + __global_unlock2(lflags); + + /* + * Log if the cache partitions were altered so the user is aware of any + * potential unintentional cache wastage. + */ + dcsz = get_dcache_size(); + icsz = get_dcache_size(); + describe_cachepart_change(this_thread, "dcache", dcsz, + dcpart_this, dcpart_new); + describe_cachepart_change(thread, "dcache", dcsz, + dcpart_old, dcpart_new); + describe_cachepart_change(thread, "icache", icsz, + icpart_old, icpart_new); +} + int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle) { unsigned int thread = cpu_2_hwthread_id[cpu]; @@ -108,6 +221,8 @@ int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle) flush_tlb_all(); + setup_smp_cache(thread); + /* * Tell the secondary CPU where to find its idle thread's stack. */ @@ -297,7 +412,7 @@ asmlinkage void secondary_start_kernel(void) /* * OK, it's off to the idle thread for us */ - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } void __init smp_cpus_done(unsigned int max_cpus) diff --git a/arch/metag/kernel/traps.c b/arch/metag/kernel/traps.c index 8961f24..2ceeaae 100644 --- a/arch/metag/kernel/traps.c +++ b/arch/metag/kernel/traps.c @@ -987,9 +987,3 @@ void show_stack(struct task_struct *tsk, unsigned long *sp) show_trace(tsk, sp, NULL); } - -void dump_stack(void) -{ - show_stack(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); diff --git a/arch/metag/mm/Kconfig b/arch/metag/mm/Kconfig index 975f2f4..794f26a 100644 --- a/arch/metag/mm/Kconfig +++ b/arch/metag/mm/Kconfig @@ -98,9 +98,6 @@ config MAX_ACTIVE_REGIONS default "2" if SPARSEMEM default "1" -config ARCH_POPULATES_NODE_MAP - def_bool y - config ARCH_SELECT_MEMORY_MODEL def_bool y diff --git a/arch/metag/mm/init.c b/arch/metag/mm/init.c index 504a398..d05b845 100644 --- a/arch/metag/mm/init.c +++ b/arch/metag/mm/init.c @@ -380,14 +380,8 @@ void __init mem_init(void) #ifdef CONFIG_HIGHMEM unsigned long tmp; - for (tmp = highstart_pfn; tmp < highend_pfn; tmp++) { - struct page *page = pfn_to_page(tmp); - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - totalhigh_pages++; - } - totalram_pages += totalhigh_pages; + for (tmp = highstart_pfn; tmp < highend_pfn; tmp++) + free_highmem_page(pfn_to_page(tmp)); num_physpages += totalhigh_pages; #endif /* CONFIG_HIGHMEM */ @@ -412,32 +406,15 @@ void __init mem_init(void) return; } -static void free_init_pages(char *what, unsigned long begin, unsigned long end) -{ - unsigned long addr; - - for (addr = begin; addr < end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE); - free_page(addr); - totalram_pages++; - } - pr_info("Freeing %s: %luk freed\n", what, (end - begin) >> 10); -} - void free_initmem(void) { - free_init_pages("unused kernel memory", - (unsigned long)(&__init_begin), - (unsigned long)(&__init_end)); + free_initmem_default(POISON_FREE_INITMEM); } #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - end = end & PAGE_MASK; - free_init_pages("initrd memory", start, end); + free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd"); } #endif diff --git a/arch/metag/oprofile/Makefile b/arch/metag/oprofile/Makefile new file mode 100644 index 0000000..c9639d4 --- /dev/null +++ b/arch/metag/oprofile/Makefile @@ -0,0 +1,17 @@ +obj-$(CONFIG_OPROFILE) += oprofile.o + +oprofile-core-y += buffer_sync.o +oprofile-core-y += cpu_buffer.o +oprofile-core-y += event_buffer.o +oprofile-core-y += oprof.o +oprofile-core-y += oprofile_files.o +oprofile-core-y += oprofile_stats.o +oprofile-core-y += oprofilefs.o +oprofile-core-y += timer_int.o +oprofile-core-$(CONFIG_HW_PERF_EVENTS) += oprofile_perf.o + +oprofile-y += backtrace.o +oprofile-y += common.o +oprofile-y += $(addprefix ../../../drivers/oprofile/,$(oprofile-core-y)) + +ccflags-y += -Werror diff --git a/arch/metag/oprofile/backtrace.c b/arch/metag/oprofile/backtrace.c new file mode 100644 index 0000000..7cc3f37 --- /dev/null +++ b/arch/metag/oprofile/backtrace.c @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2010-2013 Imagination Technologies 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/oprofile.h> +#include <linux/uaccess.h> +#include <asm/processor.h> +#include <asm/stacktrace.h> + +#include "backtrace.h" + +static void user_backtrace_fp(unsigned long __user *fp, unsigned int depth) +{ + while (depth-- && access_ok(VERIFY_READ, fp, 8)) { + unsigned long addr; + unsigned long __user *fpnew; + if (__copy_from_user_inatomic(&addr, fp + 1, sizeof(addr))) + break; + addr -= 4; + + oprofile_add_trace(addr); + + /* stack grows up, so frame pointers must decrease */ + if (__copy_from_user_inatomic(&fpnew, fp + 0, sizeof(fpnew))) + break; + if (fpnew >= fp) + break; + fp = fpnew; + } +} + +static int kernel_backtrace_frame(struct stackframe *frame, void *data) +{ + unsigned int *depth = data; + + oprofile_add_trace(frame->pc); + + /* decrement depth and stop if we reach 0 */ + if ((*depth)-- == 0) + return 1; + + /* otherwise onto the next frame */ + return 0; +} + +void metag_backtrace(struct pt_regs * const regs, unsigned int depth) +{ + if (user_mode(regs)) { + unsigned long *fp = (unsigned long *)regs->ctx.AX[1].U0; + user_backtrace_fp((unsigned long __user __force *)fp, depth); + } else { + struct stackframe frame; + frame.fp = regs->ctx.AX[1].U0; /* A0FrP */ + frame.sp = user_stack_pointer(regs); /* A0StP */ + frame.lr = 0; /* from stack */ + frame.pc = regs->ctx.CurrPC; /* PC */ + walk_stackframe(&frame, &kernel_backtrace_frame, &depth); + } +} diff --git a/arch/metag/oprofile/backtrace.h b/arch/metag/oprofile/backtrace.h new file mode 100644 index 0000000..c0fcc42 --- /dev/null +++ b/arch/metag/oprofile/backtrace.h @@ -0,0 +1,6 @@ +#ifndef _METAG_OPROFILE_BACKTRACE_H +#define _METAG_OPROFILE_BACKTRACE_H + +void metag_backtrace(struct pt_regs * const regs, unsigned int depth); + +#endif diff --git a/arch/metag/oprofile/common.c b/arch/metag/oprofile/common.c new file mode 100644 index 0000000..ba26152 --- /dev/null +++ b/arch/metag/oprofile/common.c @@ -0,0 +1,66 @@ +/* + * arch/metag/oprofile/common.c + * + * Copyright (C) 2013 Imagination Technologies Ltd. + * + * Based on arch/sh/oprofile/common.c: + * + * Copyright (C) 2003 - 2010 Paul Mundt + * + * Based on arch/mips/oprofile/common.c: + * + * Copyright (C) 2004, 2005 Ralf Baechle + * Copyright (C) 2005 MIPS Technologies, Inc. + * + * 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/errno.h> +#include <linux/init.h> +#include <linux/oprofile.h> +#include <linux/perf_event.h> +#include <linux/slab.h> + +#include "backtrace.h" + +#ifdef CONFIG_HW_PERF_EVENTS +/* + * This will need to be reworked when multiple PMUs are supported. + */ +static char *metag_pmu_op_name; + +char *op_name_from_perf_id(void) +{ + return metag_pmu_op_name; +} + +int __init oprofile_arch_init(struct oprofile_operations *ops) +{ + ops->backtrace = metag_backtrace; + + if (perf_num_counters() == 0) + return -ENODEV; + + metag_pmu_op_name = kasprintf(GFP_KERNEL, "metag/%s", + perf_pmu_name()); + if (unlikely(!metag_pmu_op_name)) + return -ENOMEM; + + return oprofile_perf_init(ops); +} + +void oprofile_arch_exit(void) +{ + oprofile_perf_exit(); + kfree(metag_pmu_op_name); +} +#else +int __init oprofile_arch_init(struct oprofile_operations *ops) +{ + ops->backtrace = metag_backtrace; + /* fall back to timer interrupt PC sampling */ + return -ENODEV; +} +void oprofile_arch_exit(void) {} +#endif /* CONFIG_HW_PERF_EVENTS */ diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 1323fa2..54237af 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -26,6 +26,7 @@ config MICROBLAZE select GENERIC_CPU_DEVICES select GENERIC_ATOMIC64 select GENERIC_CLOCKEVENTS + select GENERIC_IDLE_POLL_SETUP select MODULES_USE_ELF_RELA select CLONE_BACKWARDS @@ -38,9 +39,6 @@ config RWSEM_GENERIC_SPINLOCK config ZONE_DMA def_bool y -config ARCH_POPULATES_NODE_MAP - def_bool y - config RWSEM_XCHGADD_ALGORITHM bool diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h index 0759153..d6e0ffe 100644 --- a/arch/microblaze/include/asm/processor.h +++ b/arch/microblaze/include/asm/processor.h @@ -22,7 +22,6 @@ extern const struct seq_operations cpuinfo_op; # define cpu_relax() barrier() -# define cpu_sleep() do {} while (0) #define task_pt_regs(tsk) \ (((struct pt_regs *)(THREAD_SIZE + task_stack_page(tsk))) - 1) @@ -160,10 +159,6 @@ unsigned long get_wchan(struct task_struct *p); # define STACK_TOP TASK_SIZE # define STACK_TOP_MAX STACK_TOP -void disable_hlt(void); -void enable_hlt(void); -void default_idle(void); - #ifdef CONFIG_DEBUG_FS extern struct dentry *of_debugfs_root; #endif diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h index 0e0b0a5..f05df56 100644 --- a/arch/microblaze/include/asm/setup.h +++ b/arch/microblaze/include/asm/setup.h @@ -46,7 +46,6 @@ void machine_shutdown(void); void machine_halt(void); void machine_power_off(void); -void free_init_pages(char *what, unsigned long begin, unsigned long end); extern void *alloc_maybe_bootmem(size_t size, gfp_t mask); extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask); diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h index 008f304..de26ea6 100644 --- a/arch/microblaze/include/asm/thread_info.h +++ b/arch/microblaze/include/asm/thread_info.h @@ -182,7 +182,6 @@ static inline bool test_and_clear_restore_sigmask(void) ti->status &= ~TS_RESTORE_SIGMASK; return true; } -#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) #endif #endif /* __KERNEL__ */ diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h index b377839..6dece2d 100644 --- a/arch/microblaze/include/asm/unistd.h +++ b/arch/microblaze/include/asm/unistd.h @@ -37,13 +37,5 @@ #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_FORK -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall"); - #endif /* __ASSEMBLY__ */ #endif /* _ASM_MICROBLAZE_UNISTD_H */ diff --git a/arch/microblaze/kernel/early_printk.c b/arch/microblaze/kernel/early_printk.c index 60dcacc..365f2d5 100644 --- a/arch/microblaze/kernel/early_printk.c +++ b/arch/microblaze/kernel/early_printk.c @@ -21,7 +21,6 @@ #include <asm/setup.h> #include <asm/prom.h> -static u32 early_console_initialized; static u32 base_addr; #ifdef CONFIG_SERIAL_UARTLITE_CONSOLE @@ -109,27 +108,11 @@ static struct console early_serial_uart16550_console = { }; #endif /* CONFIG_SERIAL_8250_CONSOLE */ -static struct console *early_console; - -void early_printk(const char *fmt, ...) -{ - char buf[512]; - int n; - va_list ap; - - if (early_console_initialized) { - va_start(ap, fmt); - n = vscnprintf(buf, 512, fmt, ap); - early_console->write(early_console, buf, n); - va_end(ap); - } -} - int __init setup_early_printk(char *opt) { int version = 0; - if (early_console_initialized) + if (early_console) return 1; base_addr = of_early_console(&version); @@ -159,7 +142,6 @@ int __init setup_early_printk(char *opt) } register_console(early_console); - early_console_initialized = 1; return 0; } return 1; @@ -169,7 +151,7 @@ int __init setup_early_printk(char *opt) * only for early console because of performance degression */ void __init remap_early_printk(void) { - if (!early_console_initialized || !early_console) + if (!early_console) return; pr_info("early_printk_console remapping from 0x%x to ", base_addr); base_addr = (u32) ioremap(base_addr, PAGE_SIZE); @@ -194,9 +176,9 @@ void __init remap_early_printk(void) void __init disable_early_printk(void) { - if (!early_console_initialized || !early_console) + if (!early_console) return; pr_warn("disabling early console\n"); unregister_console(early_console); - early_console_initialized = 0; + early_console = NULL; } diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c index fa0ea60..a558938 100644 --- a/arch/microblaze/kernel/process.c +++ b/arch/microblaze/kernel/process.c @@ -20,6 +20,8 @@ void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_INFO); + pr_info(" Registers dump: mode=%X\r\n", regs->pt_mode); pr_info(" r1=%08lX, r2=%08lX, r3=%08lX, r4=%08lX\n", regs->r1, regs->r2, regs->r3, regs->r4); @@ -44,71 +46,6 @@ void show_regs(struct pt_regs *regs) void (*pm_power_off)(void) = NULL; EXPORT_SYMBOL(pm_power_off); -static int hlt_counter = 1; - -void disable_hlt(void) -{ - hlt_counter++; -} -EXPORT_SYMBOL(disable_hlt); - -void enable_hlt(void) -{ - hlt_counter--; -} -EXPORT_SYMBOL(enable_hlt); - -static int __init nohlt_setup(char *__unused) -{ - hlt_counter = 1; - return 1; -} -__setup("nohlt", nohlt_setup); - -static int __init hlt_setup(char *__unused) -{ - hlt_counter = 0; - return 1; -} -__setup("hlt", hlt_setup); - -void default_idle(void) -{ - if (likely(hlt_counter)) { - local_irq_disable(); - stop_critical_timings(); - cpu_relax(); - start_critical_timings(); - local_irq_enable(); - } else { - clear_thread_flag(TIF_POLLING_NRFLAG); - smp_mb__after_clear_bit(); - local_irq_disable(); - while (!need_resched()) - cpu_sleep(); - local_irq_enable(); - set_thread_flag(TIF_POLLING_NRFLAG); - } -} - -void cpu_idle(void) -{ - set_thread_flag(TIF_POLLING_NRFLAG); - - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - while (!need_resched()) - default_idle(); - rcu_idle_exit(); - tick_nohz_idle_exit(); - - schedule_preempt_disabled(); - check_pgt_cache(); - } -} - void flush_thread(void) { } diff --git a/arch/microblaze/kernel/traps.c b/arch/microblaze/kernel/traps.c index 30e6b50..cb61953 100644 --- a/arch/microblaze/kernel/traps.c +++ b/arch/microblaze/kernel/traps.c @@ -75,9 +75,3 @@ void show_stack(struct task_struct *task, unsigned long *sp) debug_show_held_locks(task); } - -void dump_stack(void) -{ - show_stack(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index 8f8b367..4ec137d 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -82,13 +82,9 @@ static unsigned long highmem_setup(void) /* FIXME not sure about */ if (memblock_is_reserved(pfn << PAGE_SHIFT)) continue; - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - totalhigh_pages++; + free_highmem_page(page); reservedpages++; } - totalram_pages += totalhigh_pages; pr_info("High memory: %luk\n", totalhigh_pages << (PAGE_SHIFT-10)); @@ -236,40 +232,16 @@ void __init setup_memory(void) paging_init(); } -void free_init_pages(char *what, unsigned long begin, unsigned long end) -{ - unsigned long addr; - - for (addr = begin; addr < end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } - pr_info("Freeing %s: %ldk freed\n", what, (end - begin) >> 10); -} - #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++; - } - pr_notice("Freeing initrd memory: %dk freed\n", - (int)(pages * (PAGE_SIZE / 1024))); + free_reserved_area(start, end, 0, "initrd"); } #endif void free_initmem(void) { - free_init_pages("unused kernel memory", - (unsigned long)(&__init_begin), - (unsigned long)(&__init_end)); + free_initmem_default(0); } void __init mem_init(void) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 51244bf..e5f3794 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -404,6 +404,8 @@ config PMC_MSP select IRQ_CPU select SERIAL_8250 select SERIAL_8250_CONSOLE + select USB_EHCI_BIG_ENDIAN_MMIO + select USB_EHCI_BIG_ENDIAN_DESC help This adds support for the PMC-Sierra family of Multi-Service Processor System-On-A-Chips. These parts include a number @@ -1433,6 +1435,7 @@ config CPU_CAVIUM_OCTEON select CPU_SUPPORTS_HUGEPAGES select LIBFDT select USE_OF + select USB_EHCI_BIG_ENDIAN_MMIO help The Cavium Octeon processor is a highly integrated chip containing many ethernet hardware widgets for networking tasks. The processor @@ -1736,7 +1739,6 @@ config 32BIT config 64BIT bool "64-bit kernel" depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL - select HAVE_SYSCALL_WRAPPERS help Select this option if you want to build a 64-bit kernel. @@ -2538,7 +2540,14 @@ source "kernel/power/Kconfig" endmenu -source "arch/mips/kernel/cpufreq/Kconfig" +config MIPS_EXTERNAL_TIMER + bool + +if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER +menu "CPU Power Management" +source "drivers/cpufreq/Kconfig" +endmenu +endif source "net/Kconfig" diff --git a/arch/mips/bcm63xx/dev-spi.c b/arch/mips/bcm63xx/dev-spi.c index f1c9c3e..e97fd60 100644 --- a/arch/mips/bcm63xx/dev-spi.c +++ b/arch/mips/bcm63xx/dev-spi.c @@ -85,20 +85,9 @@ static struct platform_device bcm63xx_spi_device = { int __init bcm63xx_spi_register(void) { - struct clk *periph_clk; - if (BCMCPU_IS_6328() || BCMCPU_IS_6345()) return -ENODEV; - periph_clk = clk_get(NULL, "periph"); - if (IS_ERR(periph_clk)) { - pr_err("unable to get periph clock\n"); - return -ENODEV; - } - - /* Set bus frequency */ - spi_pdata.speed_hz = clk_get_rate(periph_clk); - spi_resources[0].start = bcm63xx_regset_address(RSET_SPI); spi_resources[0].end = spi_resources[0].start; spi_resources[1].start = bcm63xx_get_irq_number(IRQ_SPI); diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h index ef99db9..fe0d15d 100644 --- a/arch/mips/include/asm/hugetlb.h +++ b/arch/mips/include/asm/hugetlb.h @@ -10,6 +10,7 @@ #define __ASM_HUGETLB_H #include <asm/page.h> +#include <asm-generic/hugetlb.h> static inline int is_hugepage_only_range(struct mm_struct *mm, diff --git a/arch/mips/include/asm/linkage.h b/arch/mips/include/asm/linkage.h index e9a940d..2767dda 100644 --- a/arch/mips/include/asm/linkage.h +++ b/arch/mips/include/asm/linkage.h @@ -6,5 +6,8 @@ #endif #define __weak __attribute__((weak)) +#define cond_syscall(x) asm(".weak\t" #x "\n" #x "\t=\tsys_ni_syscall") +#define SYSCALL_ALIAS(alias, name) \ + asm ( #alias " = " #name "\n\t.globl " #alias) #endif diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h index c9bae13..b0184cf 100644 --- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h +++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h @@ -13,7 +13,6 @@ struct bcm63xx_spi_pdata { unsigned int msg_ctl_width; int bus_num; int num_chipselect; - u32 speed_hz; }; enum bcm63xx_regs_spi { diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index 99fc547..eab99e5 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -31,7 +31,7 @@ #define PAGE_SHIFT 16 #endif #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE - 1)) +#define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT #define HPAGE_SHIFT (PAGE_SHIFT + PAGE_SHIFT - 3) diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h index 64f661e..63c9c88 100644 --- a/arch/mips/include/asm/unistd.h +++ b/arch/mips/include/asm/unistd.h @@ -63,12 +63,4 @@ #endif /* !__ASSEMBLY__ */ -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n" #x "\t=\tsys_ni_syscall") - #endif /* _ASM_UNISTD_H */ diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile index de75fb5..520a908 100644 --- a/arch/mips/kernel/Makefile +++ b/arch/mips/kernel/Makefile @@ -92,8 +92,6 @@ CFLAGS_cpu-bugs64.o = $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/n obj-$(CONFIG_HAVE_STD_PC_SERIAL_PORT) += 8250-platform.o -obj-$(CONFIG_MIPS_CPUFREQ) += cpufreq/ - obj-$(CONFIG_PERF_EVENTS) += perf_event.o obj-$(CONFIG_HW_PERF_EVENTS) += perf_event_mipsxx.o diff --git a/arch/mips/kernel/cpufreq/Kconfig b/arch/mips/kernel/cpufreq/Kconfig deleted file mode 100644 index 58c601e..0000000 --- a/arch/mips/kernel/cpufreq/Kconfig +++ /dev/null @@ -1,41 +0,0 @@ -# -# CPU Frequency scaling -# - -config MIPS_EXTERNAL_TIMER - bool - -config MIPS_CPUFREQ - bool - default y - depends on CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER - -if MIPS_CPUFREQ - -menu "CPU Frequency scaling" - -source "drivers/cpufreq/Kconfig" - -if CPU_FREQ - -comment "CPUFreq processor drivers" - -config LOONGSON2_CPUFREQ - tristate "Loongson2 CPUFreq Driver" - select CPU_FREQ_TABLE - depends on MIPS_CPUFREQ - help - This option adds a CPUFreq driver for loongson processors which - support software configurable cpu frequency. - - Loongson2F and it's successors support this feature. - - For details, take a look at <file:Documentation/cpu-freq/>. - - If in doubt, say N. - -endif # CPU_FREQ - -endmenu - -endif # MIPS_CPUFREQ diff --git a/arch/mips/kernel/cpufreq/Makefile b/arch/mips/kernel/cpufreq/Makefile deleted file mode 100644 index 05a5715..0000000 --- a/arch/mips/kernel/cpufreq/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for the Linux/MIPS cpufreq. -# - -obj-$(CONFIG_LOONGSON2_CPUFREQ) += loongson2_cpufreq.o diff --git a/arch/mips/kernel/cpufreq/loongson2_cpufreq.c b/arch/mips/kernel/cpufreq/loongson2_cpufreq.c deleted file mode 100644 index 3237c52..0000000 --- a/arch/mips/kernel/cpufreq/loongson2_cpufreq.c +++ /dev/null @@ -1,255 +0,0 @@ -/* - * Cpufreq driver for the loongson-2 processors - * - * The 2E revision of loongson processor not support this feature. - * - * Copyright (C) 2006 - 2008 Lemote Inc. & Insititute of Computing Technology - * Author: Yanhua, yanh@lemote.com - * - * 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/cpufreq.h> -#include <linux/module.h> -#include <linux/err.h> -#include <linux/sched.h> /* set_cpus_allowed() */ -#include <linux/delay.h> -#include <linux/platform_device.h> - -#include <asm/clock.h> - -#include <asm/mach-loongson/loongson.h> - -static uint nowait; - -static struct clk *cpuclk; - -static void (*saved_cpu_wait) (void); - -static int loongson2_cpu_freq_notifier(struct notifier_block *nb, - unsigned long val, void *data); - -static struct notifier_block loongson2_cpufreq_notifier_block = { - .notifier_call = loongson2_cpu_freq_notifier -}; - -static int loongson2_cpu_freq_notifier(struct notifier_block *nb, - unsigned long val, void *data) -{ - if (val == CPUFREQ_POSTCHANGE) - current_cpu_data.udelay_val = loops_per_jiffy; - - return 0; -} - -static unsigned int loongson2_cpufreq_get(unsigned int cpu) -{ - return clk_get_rate(cpuclk); -} - -/* - * Here we notify other drivers of the proposed change and the final change. - */ -static int loongson2_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int cpu = policy->cpu; - unsigned int newstate = 0; - cpumask_t cpus_allowed; - struct cpufreq_freqs freqs; - unsigned int freq; - - if (!cpu_online(cpu)) - return -ENODEV; - - cpus_allowed = current->cpus_allowed; - set_cpus_allowed_ptr(current, cpumask_of(cpu)); - - if (cpufreq_frequency_table_target - (policy, &loongson2_clockmod_table[0], target_freq, relation, - &newstate)) - return -EINVAL; - - freq = - ((cpu_clock_freq / 1000) * - loongson2_clockmod_table[newstate].index) / 8; - if (freq < policy->min || freq > policy->max) - return -EINVAL; - - pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000); - - freqs.cpu = cpu; - freqs.old = loongson2_cpufreq_get(cpu); - freqs.new = freq; - freqs.flags = 0; - - if (freqs.new == freqs.old) - return 0; - - /* notifiers */ - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - set_cpus_allowed_ptr(current, &cpus_allowed); - - /* setting the cpu frequency */ - clk_set_rate(cpuclk, freq); - - /* notifiers */ - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - pr_debug("cpufreq: set frequency %u kHz\n", freq); - - return 0; -} - -static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy) -{ - int i; - unsigned long rate; - int ret; - - if (!cpu_online(policy->cpu)) - return -ENODEV; - - cpuclk = clk_get(NULL, "cpu_clk"); - if (IS_ERR(cpuclk)) { - printk(KERN_ERR "cpufreq: couldn't get CPU clk\n"); - return PTR_ERR(cpuclk); - } - - rate = cpu_clock_freq / 1000; - if (!rate) { - clk_put(cpuclk); - return -EINVAL; - } - ret = clk_set_rate(cpuclk, rate); - if (ret) { - clk_put(cpuclk); - return ret; - } - - /* clock table init */ - for (i = 2; - (loongson2_clockmod_table[i].frequency != CPUFREQ_TABLE_END); - i++) - loongson2_clockmod_table[i].frequency = (rate * i) / 8; - - policy->cur = loongson2_cpufreq_get(policy->cpu); - - cpufreq_frequency_table_get_attr(&loongson2_clockmod_table[0], - policy->cpu); - - return cpufreq_frequency_table_cpuinfo(policy, - &loongson2_clockmod_table[0]); -} - -static int loongson2_cpufreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - &loongson2_clockmod_table[0]); -} - -static int loongson2_cpufreq_exit(struct cpufreq_policy *policy) -{ - clk_put(cpuclk); - return 0; -} - -static struct freq_attr *loongson2_table_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - -static struct cpufreq_driver loongson2_cpufreq_driver = { - .owner = THIS_MODULE, - .name = "loongson2", - .init = loongson2_cpufreq_cpu_init, - .verify = loongson2_cpufreq_verify, - .target = loongson2_cpufreq_target, - .get = loongson2_cpufreq_get, - .exit = loongson2_cpufreq_exit, - .attr = loongson2_table_attr, -}; - -static struct platform_device_id platform_device_ids[] = { - { - .name = "loongson2_cpufreq", - }, - {} -}; - -MODULE_DEVICE_TABLE(platform, platform_device_ids); - -static struct platform_driver platform_driver = { - .driver = { - .name = "loongson2_cpufreq", - .owner = THIS_MODULE, - }, - .id_table = platform_device_ids, -}; - -/* - * This is the simple version of Loongson-2 wait, Maybe we need do this in - * interrupt disabled context. - */ - -static DEFINE_SPINLOCK(loongson2_wait_lock); - -static void loongson2_cpu_wait(void) -{ - unsigned long flags; - u32 cpu_freq; - - spin_lock_irqsave(&loongson2_wait_lock, flags); - cpu_freq = LOONGSON_CHIPCFG0; - LOONGSON_CHIPCFG0 &= ~0x7; /* Put CPU into wait mode */ - LOONGSON_CHIPCFG0 = cpu_freq; /* Restore CPU state */ - spin_unlock_irqrestore(&loongson2_wait_lock, flags); -} - -static int __init cpufreq_init(void) -{ - int ret; - - /* Register platform stuff */ - ret = platform_driver_register(&platform_driver); - if (ret) - return ret; - - pr_info("cpufreq: Loongson-2F CPU frequency driver.\n"); - - cpufreq_register_notifier(&loongson2_cpufreq_notifier_block, - CPUFREQ_TRANSITION_NOTIFIER); - - ret = cpufreq_register_driver(&loongson2_cpufreq_driver); - - if (!ret && !nowait) { - saved_cpu_wait = cpu_wait; - cpu_wait = loongson2_cpu_wait; - } - - return ret; -} - -static void __exit cpufreq_exit(void) -{ - if (!nowait && saved_cpu_wait) - cpu_wait = saved_cpu_wait; - cpufreq_unregister_driver(&loongson2_cpufreq_driver); - cpufreq_unregister_notifier(&loongson2_cpufreq_notifier_block, - CPUFREQ_TRANSITION_NOTIFIER); - - platform_driver_unregister(&platform_driver); -} - -module_init(cpufreq_init); -module_exit(cpufreq_exit); - -module_param(nowait, uint, 0644); -MODULE_PARM_DESC(nowait, "Disable Loongson-2F specific wait"); - -MODULE_AUTHOR("Yanhua <yanh@lemote.com>"); -MODULE_DESCRIPTION("cpufreq driver for Loongson2F"); -MODULE_LICENSE("GPL"); diff --git a/arch/mips/kernel/early_printk.c b/arch/mips/kernel/early_printk.c index 9e6440e..505cb77 100644 --- a/arch/mips/kernel/early_printk.c +++ b/arch/mips/kernel/early_printk.c @@ -7,7 +7,9 @@ * Copyright (C) 2007 MIPS Technologies, Inc. * written by Ralf Baechle (ralf@linux-mips.org) */ +#include <linux/kernel.h> #include <linux/console.h> +#include <linux/printk.h> #include <linux/init.h> #include <asm/setup.h> @@ -24,20 +26,18 @@ static void early_console_write(struct console *con, const char *s, unsigned n) } } -static struct console early_console = { +static struct console early_console_prom = { .name = "early", .write = early_console_write, .flags = CON_PRINTBUFFER | CON_BOOT, .index = -1 }; -static int early_console_initialized __initdata; - void __init setup_early_printk(void) { - if (early_console_initialized) + if (early_console) return; - early_console_initialized = 1; + early_console = &early_console_prom; - register_console(&early_console); + register_console(&early_console_prom); } diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index db9655f..d1d576b 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -119,99 +119,6 @@ SYSCALL_DEFINE6(32_pwrite, unsigned int, fd, const char __user *, buf, return sys_pwrite64(fd, buf, count, merge_64(a4, a5)); } -#ifdef CONFIG_SYSVIPC - -SYSCALL_DEFINE6(32_ipc, u32, call, long, first, long, second, long, third, - unsigned long, ptr, unsigned long, fifth) -{ - int version, err; - - version = call >> 16; /* hack for backward compatibility */ - call &= 0xffff; - - switch (call) { - case SEMOP: - /* struct sembuf is the same on 32 and 64bit :)) */ - err = sys_semtimedop(first, compat_ptr(ptr), second, NULL); - break; - case SEMTIMEDOP: - err = compat_sys_semtimedop(first, compat_ptr(ptr), second, - compat_ptr(fifth)); - break; - case SEMGET: - err = sys_semget(first, second, third); - break; - case SEMCTL: - err = compat_sys_semctl(first, second, third, compat_ptr(ptr)); - break; - case MSGSND: - err = compat_sys_msgsnd(first, second, third, compat_ptr(ptr)); - break; - case MSGRCV: - err = compat_sys_msgrcv(first, second, fifth, third, - version, compat_ptr(ptr)); - break; - case MSGGET: - err = sys_msgget((key_t) first, second); - break; - case MSGCTL: - err = compat_sys_msgctl(first, second, compat_ptr(ptr)); - break; - case SHMAT: - err = compat_sys_shmat(first, second, third, version, - compat_ptr(ptr)); - break; - case SHMDT: - err = sys_shmdt(compat_ptr(ptr)); - break; - case SHMGET: - err = sys_shmget(first, (unsigned)second, third); - break; - case SHMCTL: - err = compat_sys_shmctl(first, second, compat_ptr(ptr)); - break; - default: - err = -ENOSYS; - break; - } - - return err; -} - -#else - -SYSCALL_DEFINE6(32_ipc, u32, call, int, first, int, second, int, third, - u32, ptr, u32, fifth) -{ - return -ENOSYS; -} - -#endif /* CONFIG_SYSVIPC */ - -#ifdef CONFIG_MIPS32_N32 -SYSCALL_DEFINE4(n32_semctl, int, semid, int, semnum, int, cmd, u32, arg) -{ - /* compat_sys_semctl expects a pointer to union semun */ - u32 __user *uptr = compat_alloc_user_space(sizeof(u32)); - if (put_user(arg, uptr)) - return -EFAULT; - return compat_sys_semctl(semid, semnum, cmd, uptr); -} - -SYSCALL_DEFINE4(n32_msgsnd, int, msqid, u32, msgp, unsigned int, msgsz, - int, msgflg) -{ - return compat_sys_msgsnd(msqid, msgsz, msgflg, compat_ptr(msgp)); -} - -SYSCALL_DEFINE5(n32_msgrcv, int, msqid, u32, msgp, size_t, msgsz, - int, msgtyp, int, msgflg) -{ - return compat_sys_msgrcv(msqid, msgsz, msgtyp, msgflg, IPC_64, - compat_ptr(msgp)); -} -#endif - SYSCALL_DEFINE1(32_personality, unsigned long, personality) { unsigned int p = personality & 0xffffffff; @@ -226,26 +133,6 @@ SYSCALL_DEFINE1(32_personality, unsigned long, personality) return ret; } -SYSCALL_DEFINE4(32_sendfile, long, out_fd, long, in_fd, - compat_off_t __user *, offset, s32, count) -{ - mm_segment_t old_fs = get_fs(); - int ret; - off_t of; - - if (offset && get_user(of, offset)) - return -EFAULT; - - set_fs(KERNEL_DS); - ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, count); - set_fs(old_fs); - - if (offset && put_user(of, offset)) - return -EFAULT; - - return ret; -} - asmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3, size_t count) { @@ -279,12 +166,6 @@ asmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_a2, merge_64(len_a4, len_a5)); } -asmlinkage long sys32_lookup_dcookie(u32 a0, u32 a1, char __user *buf, - size_t len) -{ - return sys_lookup_dcookie(merge_64(a0, a1), buf, len); -} - SYSCALL_DEFINE6(32_fanotify_mark, int, fanotify_fd, unsigned int, flags, u64, a3, u64, a4, int, dfd, const char __user *, pathname) { diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 3be4405..cfc742d 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -41,44 +41,26 @@ #include <asm/inst.h> #include <asm/stacktrace.h> -/* - * 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 __noreturn cpu_idle(void) +#ifdef CONFIG_HOTPLUG_CPU +void arch_cpu_idle_dead(void) { - int cpu; - - /* CPU is going idle. */ - cpu = smp_processor_id(); + /* What the heck is this check doing ? */ + if (!cpu_isset(smp_processor_id(), cpu_callin_map)) + play_dead(); +} +#endif - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - while (!need_resched() && cpu_online(cpu)) { +void arch_cpu_idle(void) +{ #ifdef CONFIG_MIPS_MT_SMTC - extern void smtc_idle_loop_hook(void); + extern void smtc_idle_loop_hook(void); - smtc_idle_loop_hook(); + smtc_idle_loop_hook(); #endif - - if (cpu_wait) { - /* Don't trace irqs off for idle */ - stop_critical_timings(); - (*cpu_wait)(); - start_critical_timings(); - } - } -#ifdef CONFIG_HOTPLUG_CPU - if (!cpu_online(cpu) && !cpu_isset(cpu, cpu_callin_map)) - play_dead(); -#endif - rcu_idle_exit(); - tick_nohz_idle_exit(); - schedule_preempt_disabled(); - } + if (cpu_wait) + (*cpu_wait)(); + else + local_irq_enable(); } asmlinkage void ret_from_fork(void); diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 693d60b..edcb659 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -143,7 +143,7 @@ EXPORT(sysn32_call_table) PTR compat_sys_setitimer PTR sys_alarm PTR sys_getpid - PTR sys_32_sendfile + PTR compat_sys_sendfile PTR sys_socket /* 6040 */ PTR sys_connect PTR sys_accept @@ -168,11 +168,11 @@ EXPORT(sysn32_call_table) PTR sys_newuname PTR sys_semget PTR sys_semop - PTR sys_n32_semctl + PTR compat_sys_semctl PTR sys_shmdt /* 6065 */ PTR sys_msgget - PTR sys_n32_msgsnd - PTR sys_n32_msgrcv + PTR compat_sys_msgsnd + PTR compat_sys_msgrcv PTR compat_sys_msgctl PTR compat_sys_fcntl /* 6070 */ PTR sys_flock diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index af8887f..103bfe5 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -309,7 +309,7 @@ sys_call_table: PTR compat_sys_wait4 PTR sys_swapoff /* 4115 */ PTR compat_sys_sysinfo - PTR sys_32_ipc + PTR compat_sys_ipc PTR sys_fsync PTR sys32_sigreturn PTR __sys_clone /* 4120 */ @@ -399,7 +399,7 @@ sys_call_table: PTR sys_capget PTR sys_capset /* 4205 */ PTR compat_sys_sigaltstack - PTR sys_32_sendfile + PTR compat_sys_sendfile PTR sys_ni_syscall PTR sys_ni_syscall PTR sys_mips_mmap2 /* 4210 */ @@ -439,7 +439,7 @@ sys_call_table: PTR compat_sys_io_submit PTR sys_io_cancel /* 4245 */ PTR sys_exit_group - PTR sys32_lookup_dcookie + PTR compat_sys_lookup_dcookie PTR sys_epoll_create PTR sys_epoll_ctl PTR sys_epoll_wait /* 4250 */ diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index 66bf4e2..aee04af 100644 --- a/arch/mips/kernel/smp.c +++ b/arch/mips/kernel/smp.c @@ -139,7 +139,7 @@ asmlinkage __cpuinit void start_secondary(void) WARN_ON_ONCE(!irqs_disabled()); mp_ops->smp_finish(); - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } /* diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index c3abb881..2522551 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -206,19 +206,6 @@ void show_stack(struct task_struct *task, unsigned long *sp) show_stacktrace(task, ®s); } -/* - * The architecture-independent dump_stack generator - */ -void dump_stack(void) -{ - struct pt_regs regs; - - prepare_frametrace(®s); - show_backtrace(current, ®s); -} - -EXPORT_SYMBOL(dump_stack); - static void show_code(unsigned int __user *pc) { long i; @@ -244,7 +231,7 @@ static void __show_regs(const struct pt_regs *regs) unsigned int cause = regs->cp0_cause; int i; - printk("Cpu %d\n", smp_processor_id()); + show_regs_print_info(KERN_DEFAULT); /* * Saved main processor registers diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 6792925..3d0346d 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -77,10 +77,9 @@ EXPORT_SYMBOL_GPL(empty_zero_page); /* * Not static inline because used by IP27 special magic initialization code */ -unsigned long setup_zero_pages(void) +void setup_zero_pages(void) { - unsigned int order; - unsigned long size; + unsigned int order, i; struct page *page; if (cpu_has_vce) @@ -94,15 +93,10 @@ unsigned long setup_zero_pages(void) page = virt_to_page((void *)empty_zero_page); split_page(page, order); - while (page < virt_to_page((void *)(empty_zero_page + (PAGE_SIZE << order)))) { - SetPageReserved(page); - page++; - } - - size = PAGE_SIZE << order; - zero_page_mask = (size - 1) & PAGE_MASK; + for (i = 0; i < (1 << order); i++, page++) + mark_page_reserved(page); - return 1UL << order; + zero_page_mask = ((PAGE_SIZE << order) - 1) & PAGE_MASK; } #ifdef CONFIG_MIPS_MT_SMTC @@ -380,7 +374,7 @@ void __init mem_init(void) high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT); totalram_pages += free_all_bootmem(); - totalram_pages -= setup_zero_pages(); /* Setup zeroed pages. */ + setup_zero_pages(); /* Setup zeroed pages. */ reservedpages = ram = 0; for (tmp = 0; tmp < max_low_pfn; tmp++) @@ -399,12 +393,8 @@ void __init mem_init(void) SetPageReserved(page); continue; } - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - totalhigh_pages++; + free_highmem_page(page); } - totalram_pages += totalhigh_pages; num_physpages += totalhigh_pages; #endif @@ -440,11 +430,8 @@ void free_init_pages(const char *what, unsigned long begin, unsigned long end) struct page *page = pfn_to_page(pfn); void *addr = phys_to_virt(PFN_PHYS(pfn)); - ClearPageReserved(page); - init_page_count(page); memset(addr, POISON_FREE_INITMEM, PAGE_SIZE); - __free_page(page); - totalram_pages++; + free_reserved_page(page); } printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10); } @@ -452,18 +439,14 @@ void free_init_pages(const char *what, unsigned long begin, unsigned long end) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_init_pages("initrd memory", - virt_to_phys((void *)start), - virt_to_phys((void *)end)); + free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd"); } #endif void __init_refok free_initmem(void) { prom_free_prom_memory(); - free_init_pages("unused kernel memory", - __pa_symbol(&__init_begin), - __pa_symbol(&__init_end)); + free_initmem_default(POISON_FREE_INITMEM); } #ifndef CONFIG_MIPS_PGD_C0_CONTEXT diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c index 0872f12..594e60d 100644 --- a/arch/mips/pci/pci.c +++ b/arch/mips/pci/pci.c @@ -115,7 +115,6 @@ static void pcibios_scanbus(struct pci_controller *hose) pci_bus_assign_resources(bus); pci_enable_bridges(bus); } - bus->dev.of_node = hose->of_node; } } @@ -169,6 +168,13 @@ void pci_load_of_ranges(struct pci_controller *hose, struct device_node *node) } } } + +struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus) +{ + struct pci_controller *hose = bus->sysdata; + + return of_node_get(hose->of_node); +} #endif static DEFINE_MUTEX(pci_scan_mutex); diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c index 3505d08..5f2bddb 100644 --- a/arch/mips/sgi-ip27/ip27-memory.c +++ b/arch/mips/sgi-ip27/ip27-memory.c @@ -457,7 +457,7 @@ void __init prom_free_prom_memory(void) /* We got nothing to free here ... */ } -extern unsigned long setup_zero_pages(void); +extern void setup_zero_pages(void); void __init paging_init(void) { @@ -492,7 +492,7 @@ void __init mem_init(void) totalram_pages += free_all_bootmem_node(NODE_DATA(node)); } - totalram_pages -= setup_zero_pages(); /* This comes from node 0 */ + setup_zero_pages(); /* This comes from node 0 */ codesize = (unsigned long) &_etext - (unsigned long) &_text; datasize = (unsigned long) &_edata - (unsigned long) &_etext; diff --git a/arch/mn10300/include/asm/thread_info.h b/arch/mn10300/include/asm/thread_info.h index f90062b..224b426 100644 --- a/arch/mn10300/include/asm/thread_info.h +++ b/arch/mn10300/include/asm/thread_info.h @@ -165,8 +165,6 @@ void arch_release_thread_info(struct thread_info *ti); #define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */ #define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */ -#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) - #endif /* __KERNEL__ */ #endif /* _ASM_THREAD_INFO_H */ diff --git a/arch/mn10300/include/asm/unistd.h b/arch/mn10300/include/asm/unistd.h index 7f9d9ad..9d4e2d1 100644 --- a/arch/mn10300/include/asm/unistd.h +++ b/arch/mn10300/include/asm/unistd.h @@ -45,14 +45,4 @@ #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_CLONE -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#ifndef cond_syscall -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall"); -#endif - #endif /* _ASM_UNISTD_H */ diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c index 84f4e97..3707da5 100644 --- a/arch/mn10300/kernel/process.c +++ b/arch/mn10300/kernel/process.c @@ -50,77 +50,19 @@ unsigned long thread_saved_pc(struct task_struct *tsk) void (*pm_power_off)(void); EXPORT_SYMBOL(pm_power_off); -#if !defined(CONFIG_SMP) || defined(CONFIG_HOTPLUG_CPU) -/* - * we use this if we don't have any better idle routine - */ -static void default_idle(void) -{ - local_irq_disable(); - if (!need_resched()) - safe_halt(); - else - local_irq_enable(); -} - -#else /* !CONFIG_SMP || CONFIG_HOTPLUG_CPU */ /* * On SMP it's slightly faster (but much more power-consuming!) * to poll the ->work.need_resched flag instead of waiting for the * cross-CPU IPI to arrive. Use this option with caution. + * + * tglx: No idea why this depends on HOTPLUG_CPU !?! */ -static inline void poll_idle(void) -{ - int oldval; - - local_irq_enable(); - - /* - * Deal with another CPU just having chosen a thread to - * run here: - */ - oldval = test_and_clear_thread_flag(TIF_NEED_RESCHED); - - if (!oldval) { - set_thread_flag(TIF_POLLING_NRFLAG); - while (!need_resched()) - cpu_relax(); - clear_thread_flag(TIF_POLLING_NRFLAG); - } else { - set_need_resched(); - } -} -#endif /* !CONFIG_SMP || CONFIG_HOTPLUG_CPU */ - -/* - * 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) +#if !defined(CONFIG_SMP) || defined(CONFIG_HOTPLUG_CPU) +void arch_cpu_idle(void) { - /* endless idle loop with no priority at all */ - for (;;) { - rcu_idle_enter(); - while (!need_resched()) { - void (*idle)(void); - - smp_rmb(); - if (!idle) { -#if defined(CONFIG_SMP) && !defined(CONFIG_HOTPLUG_CPU) - idle = poll_idle; -#else /* CONFIG_SMP && !CONFIG_HOTPLUG_CPU */ - idle = default_idle; -#endif /* CONFIG_SMP && !CONFIG_HOTPLUG_CPU */ - } - idle(); - } - rcu_idle_exit(); - - schedule_preempt_disabled(); - } + safe_halt(); } +#endif void release_segments(struct mm_struct *mm) { @@ -155,6 +97,7 @@ void machine_power_off(void) void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_DEFAULT); } /* diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c index 5d7e152..a17f9c9 100644 --- a/arch/mn10300/kernel/smp.c +++ b/arch/mn10300/kernel/smp.c @@ -675,7 +675,7 @@ int __init start_secondary(void *unused) #ifdef CONFIG_GENERIC_CLOCKEVENTS init_clockevents(); #endif - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); return 0; } @@ -935,8 +935,6 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle) int timeout; #ifdef CONFIG_HOTPLUG_CPU - if (num_online_cpus() == 1) - disable_hlt(); if (sleep_mode[cpu]) run_wakeup_cpu(cpu); #endif /* CONFIG_HOTPLUG_CPU */ @@ -1003,9 +1001,6 @@ int __cpu_disable(void) void __cpu_die(unsigned int cpu) { run_sleep_cpu(cpu); - - if (num_online_cpus() == 1) - enable_hlt(); } #ifdef CONFIG_MN10300_CACHE_ENABLED diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c index b900e5a..a7a987c 100644 --- a/arch/mn10300/kernel/traps.c +++ b/arch/mn10300/kernel/traps.c @@ -294,17 +294,6 @@ void show_stack(struct task_struct *task, unsigned long *sp) } /* - * the architecture-independent dump_stack generator - */ -void dump_stack(void) -{ - unsigned long stack; - - show_stack(current, &stack); -} -EXPORT_SYMBOL(dump_stack); - -/* * dump the register file in the specified exception frame */ void show_registers_only(struct pt_regs *regs) diff --git a/arch/mn10300/mm/init.c b/arch/mn10300/mm/init.c index e57e5bc..5a8ace6 100644 --- a/arch/mn10300/mm/init.c +++ b/arch/mn10300/mm/init.c @@ -139,30 +139,11 @@ void __init mem_init(void) } /* - * - */ -void free_init_pages(char *what, unsigned long begin, unsigned long end) -{ - unsigned long addr; - - for (addr = begin; addr < end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - memset((void *) addr, 0xcc, PAGE_SIZE); - free_page(addr); - totalram_pages++; - } - printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10); -} - -/* * recycle memory containing stuff only required for initialisation */ void free_initmem(void) { - free_init_pages("unused kernel memory", - (unsigned long) &__init_begin, - (unsigned long) &__init_end); + free_initmem_default(POISON_FREE_INITMEM); } /* @@ -171,6 +152,6 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_init_pages("initrd memory", start, end); + free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd"); } #endif diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig index 9ab3bf2..81b9ddb 100644 --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -55,9 +55,6 @@ config TRACE_IRQFLAGS_SUPPORT config GENERIC_CSUM def_bool y -config GENERIC_FIND_NEXT_BIT - def_bool y - source "init/Kconfig" diff --git a/arch/openrisc/include/asm/thread_info.h b/arch/openrisc/include/asm/thread_info.h index 07f3212..d797acc 100644 --- a/arch/openrisc/include/asm/thread_info.h +++ b/arch/openrisc/include/asm/thread_info.h @@ -128,8 +128,6 @@ register struct thread_info *current_thread_info_reg asm("r10"); /* For OpenRISC, this is anything in the LSW other than syscall trace */ #define _TIF_WORK_MASK (0xff & ~(_TIF_SYSCALL_TRACE|_TIF_SINGLESTEP)) -#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) - #endif /* __KERNEL__ */ #endif /* _ASM_THREAD_INFO_H */ diff --git a/arch/openrisc/kernel/Makefile b/arch/openrisc/kernel/Makefile index 35f92ce..ec6d9d3 100644 --- a/arch/openrisc/kernel/Makefile +++ b/arch/openrisc/kernel/Makefile @@ -4,7 +4,7 @@ extra-y := head.o vmlinux.lds -obj-y := setup.o idle.o or32_ksyms.o process.o dma.o \ +obj-y := setup.o or32_ksyms.o process.o dma.o \ traps.o time.o irq.o entry.o ptrace.o signal.o \ sys_call_table.o diff --git a/arch/openrisc/kernel/idle.c b/arch/openrisc/kernel/idle.c deleted file mode 100644 index 5e8a3b6..0000000 --- a/arch/openrisc/kernel/idle.c +++ /dev/null @@ -1,73 +0,0 @@ -/* - * OpenRISC idle.c - * - * Linux architectural port borrowing liberally from similar works of - * others. All original copyrights apply as per the original source - * declaration. - * - * Modifications for the OpenRISC architecture: - * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> - * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> - * - * 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. - * - * Idle daemon for or32. Idle daemon will handle any action - * that needs to be taken when the system becomes idle. - */ - -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/stddef.h> -#include <linux/unistd.h> -#include <linux/ptrace.h> -#include <linux/slab.h> -#include <linux/tick.h> - -#include <asm/pgtable.h> -#include <asm/uaccess.h> -#include <asm/io.h> -#include <asm/processor.h> -#include <asm/mmu.h> -#include <asm/cache.h> -#include <asm/pgalloc.h> - -void (*powersave) (void) = NULL; - -void cpu_idle(void) -{ - set_thread_flag(TIF_POLLING_NRFLAG); - - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - - while (!need_resched()) { - check_pgt_cache(); - rmb(); - - clear_thread_flag(TIF_POLLING_NRFLAG); - - local_irq_disable(); - /* Don't trace irqs off for idle */ - stop_critical_timings(); - if (!need_resched() && powersave != NULL) - powersave(); - start_critical_timings(); - local_irq_enable(); - set_thread_flag(TIF_POLLING_NRFLAG); - } - - rcu_idle_exit(); - tick_nohz_idle_exit(); - preempt_enable_no_resched(); - schedule(); - preempt_disable(); - } -} diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c index 00c233b..386af25 100644 --- a/arch/openrisc/kernel/process.c +++ b/arch/openrisc/kernel/process.c @@ -90,6 +90,7 @@ void show_regs(struct pt_regs *regs) { extern void show_registers(struct pt_regs *regs); + show_regs_print_info(KERN_DEFAULT); /* __PHX__ cleanup this mess */ show_registers(regs); } diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c index 5cce396..3d3f606 100644 --- a/arch/openrisc/kernel/traps.c +++ b/arch/openrisc/kernel/traps.c @@ -105,17 +105,6 @@ void show_trace_task(struct task_struct *tsk) */ } -/* - * The architecture-independent backtrace generator - */ -void dump_stack(void) -{ - unsigned long stack; - - show_stack(current, &stack); -} -EXPORT_SYMBOL(dump_stack); - void show_registers(struct pt_regs *regs) { int i; diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c index e7fdc50..b3cbc67 100644 --- a/arch/openrisc/mm/init.c +++ b/arch/openrisc/mm/init.c @@ -43,6 +43,7 @@ #include <asm/kmap_types.h> #include <asm/fixmap.h> #include <asm/tlbflush.h> +#include <asm/sections.h> int mem_init_done; @@ -201,9 +202,6 @@ void __init paging_init(void) /* References to section boundaries */ -extern char _stext, _etext, _edata, __bss_start, _end; -extern char __init_begin, __init_end; - static int __init free_pages_init(void) { int reservedpages, pfn; @@ -263,30 +261,11 @@ void __init mem_init(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - printk(KERN_INFO "Freeing initrd memory: %ldk freed\n", - (end - start) >> 10); - - for (; start < end; start += PAGE_SIZE) { - ClearPageReserved(virt_to_page(start)); - init_page_count(virt_to_page(start)); - free_page(start); - totalram_pages++; - } + free_reserved_area(start, end, 0, "initrd"); } #endif void free_initmem(void) { - unsigned long addr; - - addr = (unsigned long)(&__init_begin); - for (; addr < (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_INFO "Freeing unused kernel memory: %luk freed\n", - ((unsigned long)&__init_end - - (unsigned long)&__init_begin) >> 10); + free_initmem_default(0); } diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 0339181..433e75a 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -1,5 +1,6 @@ config PARISC def_bool y + select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS select HAVE_IDE select HAVE_OPROFILE select HAVE_FUNCTION_TRACER if 64BIT diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug index 7305ac8..bc989e5 100644 --- a/arch/parisc/Kconfig.debug +++ b/arch/parisc/Kconfig.debug @@ -12,18 +12,4 @@ config DEBUG_RODATA portion of the kernel code won't be covered by a TLB anymore. If in doubt, say "N". -config DEBUG_STRICT_USER_COPY_CHECKS - bool "Strict copy size checks" - depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING - ---help--- - Enabling this option turns a certain set of sanity checks for user - copy operations into compile time failures. - - The copy_from_user() etc checks are there to help test if there - are sufficient security checks on the length argument of - the copy operation, by having gcc prove that the argument is - within bounds. - - If unsure, or if you run an older (pre 4.4) gcc, say N. - endmenu diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile index 01d95e2..113e282 100644 --- a/arch/parisc/Makefile +++ b/arch/parisc/Makefile @@ -65,8 +65,10 @@ ifndef CONFIG_FUNCTION_TRACER endif # Use long jumps instead of long branches (needed if your linker fails to -# link a too big vmlinux executable) -cflags-$(CONFIG_MLONGCALLS) += -mlong-calls +# link a too big vmlinux executable). Not enabled for building modules. +ifdef CONFIG_MLONGCALLS +KBUILD_CFLAGS_KERNEL += -mlong-calls +endif # select which processor to optimise for cflags-$(CONFIG_PA7100) += -march=1.1 -mschedule=7100 diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h index 79f694f..f0e2784 100644 --- a/arch/parisc/include/asm/cacheflush.h +++ b/arch/parisc/include/asm/cacheflush.h @@ -140,7 +140,10 @@ static inline void *kmap(struct page *page) return page_address(page); } -#define kunmap(page) kunmap_parisc(page_address(page)) +static inline void kunmap(struct page *page) +{ + kunmap_parisc(page_address(page)); +} static inline void *kmap_atomic(struct page *page) { diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index 7df49fa..1e40d7f 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -16,6 +16,8 @@ #include <asm/processor.h> #include <asm/cache.h> +extern spinlock_t pa_dbit_lock; + /* * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel * memory. For the return value to be meaningful, ADDR must be >= @@ -44,8 +46,11 @@ extern void purge_tlb_entries(struct mm_struct *, unsigned long); #define set_pte_at(mm, addr, ptep, pteval) \ do { \ + unsigned long flags; \ + spin_lock_irqsave(&pa_dbit_lock, flags); \ set_pte(ptep, pteval); \ purge_tlb_entries(mm, addr); \ + spin_unlock_irqrestore(&pa_dbit_lock, flags); \ } while (0) #endif /* !__ASSEMBLY__ */ @@ -435,48 +440,46 @@ extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t *); static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { -#ifdef CONFIG_SMP + pte_t pte; + unsigned long flags; + if (!pte_young(*ptep)) return 0; - return test_and_clear_bit(xlate_pabit(_PAGE_ACCESSED_BIT), &pte_val(*ptep)); -#else - pte_t pte = *ptep; - if (!pte_young(pte)) + + spin_lock_irqsave(&pa_dbit_lock, flags); + pte = *ptep; + if (!pte_young(pte)) { + spin_unlock_irqrestore(&pa_dbit_lock, flags); return 0; - set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte)); + } + set_pte(ptep, pte_mkold(pte)); + purge_tlb_entries(vma->vm_mm, addr); + spin_unlock_irqrestore(&pa_dbit_lock, flags); return 1; -#endif } -extern spinlock_t pa_dbit_lock; - struct mm_struct; static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { pte_t old_pte; + unsigned long flags; - spin_lock(&pa_dbit_lock); + spin_lock_irqsave(&pa_dbit_lock, flags); old_pte = *ptep; pte_clear(mm,addr,ptep); - spin_unlock(&pa_dbit_lock); + purge_tlb_entries(mm, addr); + spin_unlock_irqrestore(&pa_dbit_lock, flags); return old_pte; } static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { -#ifdef CONFIG_SMP - unsigned long new, old; - - do { - old = pte_val(*ptep); - new = pte_val(pte_wrprotect(__pte (old))); - } while (cmpxchg((unsigned long *) ptep, old, new) != old); + unsigned long flags; + spin_lock_irqsave(&pa_dbit_lock, flags); + set_pte(ptep, pte_wrprotect(*ptep)); purge_tlb_entries(mm, addr); -#else - pte_t old_pte = *ptep; - set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte)); -#endif + spin_unlock_irqrestore(&pa_dbit_lock, flags); } #define pte_same(A,B) (pte_val(A) == pte_val(B)) diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h index d1fb79a..6182832 100644 --- a/arch/parisc/include/asm/thread_info.h +++ b/arch/parisc/include/asm/thread_info.h @@ -77,8 +77,6 @@ struct thread_info { #define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \ _TIF_BLOCKSTEP) -#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) - #endif /* __KERNEL__ */ #endif /* _ASM_PARISC_THREAD_INFO_H */ diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h index 4ba2c93..e0a8235 100644 --- a/arch/parisc/include/asm/uaccess.h +++ b/arch/parisc/include/asm/uaccess.h @@ -181,30 +181,24 @@ struct exception_data { #if !defined(CONFIG_64BIT) #define __put_kernel_asm64(__val,ptr) do { \ - u64 __val64 = (u64)(__val); \ - u32 hi = (__val64) >> 32; \ - u32 lo = (__val64) & 0xffffffff; \ __asm__ __volatile__ ( \ "\n1:\tstw %2,0(%1)" \ - "\n2:\tstw %3,4(%1)\n\t" \ + "\n2:\tstw %R2,4(%1)\n\t" \ ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\ ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\ : "=r"(__pu_err) \ - : "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \ + : "r"(ptr), "r"(__val), "0"(__pu_err) \ : "r1"); \ } while (0) #define __put_user_asm64(__val,ptr) do { \ - u64 __val64 = (u64)(__val); \ - u32 hi = (__val64) >> 32; \ - u32 lo = (__val64) & 0xffffffff; \ __asm__ __volatile__ ( \ "\n1:\tstw %2,0(%%sr3,%1)" \ - "\n2:\tstw %3,4(%%sr3,%1)\n\t" \ + "\n2:\tstw %R2,4(%%sr3,%1)\n\t" \ ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\ ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\ : "=r"(__pu_err) \ - : "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \ + : "r"(ptr), "r"(__val), "0"(__pu_err) \ : "r1"); \ } while (0) diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h index ae9a46c..74d8358 100644 --- a/arch/parisc/include/asm/unistd.h +++ b/arch/parisc/include/asm/unistd.h @@ -170,12 +170,4 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \ #undef STR -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") - #endif /* _ASM_PARISC_UNISTD_H_ */ diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index 4b12890..83ded26 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -421,14 +421,11 @@ void purge_tlb_entries(struct mm_struct *mm, unsigned long addr) /* Note: purge_tlb_entries can be called at startup with no context. */ - /* Disable preemption while we play with %sr1. */ - preempt_disable(); - mtsp(mm->context, 1); purge_tlb_start(flags); + mtsp(mm->context, 1); pdtlb(addr); pitlb(addr); purge_tlb_end(flags); - preempt_enable(); } EXPORT_SYMBOL(purge_tlb_entries); diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c index 6795dc6..568b2c6 100644 --- a/arch/parisc/kernel/parisc_ksyms.c +++ b/arch/parisc/kernel/parisc_ksyms.c @@ -120,11 +120,13 @@ extern void __ashrdi3(void); extern void __ashldi3(void); extern void __lshrdi3(void); extern void __muldi3(void); +extern void __ucmpdi2(void); EXPORT_SYMBOL(__ashrdi3); EXPORT_SYMBOL(__ashldi3); EXPORT_SYMBOL(__lshrdi3); EXPORT_SYMBOL(__muldi3); +EXPORT_SYMBOL(__ucmpdi2); asmlinkage void * __canonicalize_funcptr_for_compare(void *); EXPORT_SYMBOL(__canonicalize_funcptr_for_compare); diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index d135072..55f92b6 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -59,28 +59,6 @@ #include <asm/unwind.h> #include <asm/sections.h> -/* - * 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) -{ - set_thread_flag(TIF_POLLING_NRFLAG); - - /* endless idle loop with no priority at all */ - while (1) { - rcu_idle_enter(); - while (!need_resched()) - barrier(); - rcu_idle_exit(); - schedule_preempt_disabled(); - check_pgt_cache(); - } -} - - #define COMMAND_GLOBAL F_EXTEND(0xfffe0030) #define CMD_RESET 5 /* reset any module */ diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index 6266730..fd1bb15 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -329,7 +329,7 @@ void __init smp_callin(void) local_irq_enable(); /* Interrupts have been off until now */ - cpu_idle(); /* Wait for timer to schedule some work */ + cpu_startup_entry(CPUHP_ONLINE); /* NOTREACHED */ panic("smp_callin() AAAAaaaaahhhh....\n"); diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c index 051c8b9..f517e08 100644 --- a/arch/parisc/kernel/sys_parisc32.c +++ b/arch/parisc/kernel/sys_parisc32.c @@ -60,47 +60,6 @@ asmlinkage long sys32_unimplemented(int r26, int r25, int r24, int r23, return -ENOSYS; } -/* Note: it is necessary to treat out_fd and in_fd as unsigned ints, with the - * corresponding cast to a signed int to insure that the proper conversion - * (sign extension) between the register representation of a signed int (msr in - * 32-bit mode) and the register representation of a signed int (msr in 64-bit - * mode) is performed. - */ -asmlinkage long sys32_sendfile(u32 out_fd, u32 in_fd, - compat_off_t __user *offset, compat_size_t count) -{ - return compat_sys_sendfile((int)out_fd, (int)in_fd, offset, count); -} - -asmlinkage long sys32_sendfile64(u32 out_fd, u32 in_fd, - compat_loff_t __user *offset, compat_size_t count) -{ - return sys_sendfile64((int)out_fd, (int)in_fd, - (loff_t __user *)offset, count); -} - -asmlinkage long sys32_semctl(int semid, int semnum, int cmd, union semun arg) -{ - union semun u; - - if (cmd == SETVAL) { - /* Ugh. arg is a union of int,ptr,ptr,ptr, so is 8 bytes. - * The int should be in the first 4, but our argument - * frobbing has left it in the last 4. - */ - u.val = *((int *)&arg + 1); - return sys_semctl (semid, semnum, cmd, u); - } - return sys_semctl (semid, semnum, cmd, arg); -} - -long sys32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf, - size_t len) -{ - return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low, - buf, len); -} - asmlinkage long compat_sys_fanotify_mark(int fan_fd, int flags, u32 mask_hi, u32 mask_lo, int fd, const char __user *pathname) diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S index f57dc13..0c91072 100644 --- a/arch/parisc/kernel/syscall_table.S +++ b/arch/parisc/kernel/syscall_table.S @@ -198,7 +198,7 @@ ENTRY_SAME(madvise) ENTRY_SAME(clone_wrapper) /* 120 */ ENTRY_SAME(setdomainname) - ENTRY_DIFF(sendfile) + ENTRY_COMP(sendfile) /* struct sockaddr... */ ENTRY_SAME(recvfrom) /* struct timex contains longs */ @@ -282,7 +282,7 @@ ENTRY_COMP(recvmsg) ENTRY_SAME(semop) /* 185 */ ENTRY_SAME(semget) - ENTRY_DIFF(semctl) + ENTRY_COMP(semctl) ENTRY_COMP(msgsnd) ENTRY_COMP(msgrcv) ENTRY_SAME(msgget) /* 190 */ @@ -304,7 +304,7 @@ ENTRY_SAME(gettid) ENTRY_OURS(readahead) ENTRY_SAME(tkill) - ENTRY_DIFF(sendfile64) + ENTRY_COMP(sendfile64) ENTRY_COMP(futex) /* 210 */ ENTRY_COMP(sched_setaffinity) ENTRY_COMP(sched_getaffinity) @@ -318,7 +318,7 @@ ENTRY_SAME(alloc_hugepages) /* 220 */ ENTRY_SAME(free_hugepages) ENTRY_SAME(exit_group) - ENTRY_DIFF(lookup_dcookie) + ENTRY_COMP(lookup_dcookie) ENTRY_SAME(epoll_create) ENTRY_SAME(epoll_ctl) /* 225 */ ENTRY_SAME(epoll_wait) diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c index aeb8f8f..f702bff 100644 --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -126,6 +126,8 @@ void show_regs(struct pt_regs *regs) user = user_mode(regs); level = user ? KERN_DEBUG : KERN_CRIT; + show_regs_print_info(level); + print_gr(level, regs); for (i = 0; i < 8; i += 4) @@ -158,14 +160,6 @@ void show_regs(struct pt_regs *regs) } } - -void dump_stack(void) -{ - show_stack(NULL, NULL); -} - -EXPORT_SYMBOL(dump_stack); - static void do_show_stack(struct unwind_frame_info *info) { int i = 1; diff --git a/arch/parisc/lib/Makefile b/arch/parisc/lib/Makefile index 5f2e690..5651536 100644 --- a/arch/parisc/lib/Makefile +++ b/arch/parisc/lib/Makefile @@ -2,6 +2,7 @@ # Makefile for parisc-specific library files # -lib-y := lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o +lib-y := lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o \ + ucmpdi2.o obj-y := iomap.o diff --git a/arch/parisc/lib/ucmpdi2.c b/arch/parisc/lib/ucmpdi2.c new file mode 100644 index 0000000..149c016 --- /dev/null +++ b/arch/parisc/lib/ucmpdi2.c @@ -0,0 +1,25 @@ +#include <linux/module.h> + +union ull_union { + unsigned long long ull; + struct { + unsigned int high; + unsigned int low; + } ui; +}; + +int __ucmpdi2(unsigned long long a, unsigned long long b) +{ + union ull_union au = {.ull = a}; + union ull_union bu = {.ull = b}; + + if (au.ui.high < bu.ui.high) + return 0; + else if (au.ui.high > bu.ui.high) + return 2; + if (au.ui.low < bu.ui.low) + return 0; + else if (au.ui.low > bu.ui.low) + return 2; + return 1; +} diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 3ac462d..157b931 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -505,7 +505,6 @@ static void __init map_pages(unsigned long start_vaddr, void free_initmem(void) { - unsigned long addr; unsigned long init_begin = (unsigned long)__init_begin; unsigned long init_end = (unsigned long)__init_end; @@ -533,19 +532,10 @@ void free_initmem(void) * pages are no-longer executable */ flush_icache_range(init_begin, init_end); - for (addr = init_begin; addr < init_end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - num_physpages++; - totalram_pages++; - } + num_physpages += free_initmem_default(0); /* set up a new led state on systems shipped LED State panel */ pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE); - - printk(KERN_INFO "Freeing unused kernel memory: %luk freed\n", - (init_end - init_begin) >> 10); } @@ -697,6 +687,8 @@ void show_mem(unsigned int filter) printk(KERN_INFO "Mem-info:\n"); show_free_areas(filter); + if (filter & SHOW_MEM_FILTER_PAGE_COUNT) + return; #ifndef CONFIG_DISCONTIGMEM i = max_mapnr; while (i-- > 0) { @@ -1107,15 +1099,6 @@ void flush_tlb_all(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - if (start >= end) - return; - printk(KERN_INFO "Freeing initrd memory: %ldk freed\n", (end - start) >> 10); - for (; start < end; start += PAGE_SIZE) { - ClearPageReserved(virt_to_page(start)); - init_page_count(virt_to_page(start)); - free_page(start); - num_physpages++; - totalram_pages++; - } + num_physpages += free_reserved_area(start, end, 0, "initrd"); } #endif diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index ea5bb04..a0259ed 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -114,7 +114,6 @@ config PPC select USE_GENERIC_SMP_HELPERS if SMP select HAVE_OPROFILE select HAVE_DEBUG_KMEMLEAK - select HAVE_SYSCALL_WRAPPERS if PPC64 select GENERIC_ATOMIC64 if PPC32 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select HAVE_PERF_EVENTS diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h index 62e11a3..4fcbd6b 100644 --- a/arch/powerpc/include/asm/hugetlb.h +++ b/arch/powerpc/include/asm/hugetlb.h @@ -3,6 +3,7 @@ #ifdef CONFIG_HUGETLB_PAGE #include <asm/page.h> +#include <asm-generic/hugetlb.h> extern struct kmem_cache *hugepte_cache; diff --git a/arch/powerpc/include/asm/linkage.h b/arch/powerpc/include/asm/linkage.h new file mode 100644 index 0000000..b36f650 --- /dev/null +++ b/arch/powerpc/include/asm/linkage.h @@ -0,0 +1,13 @@ +#ifndef _ASM_POWERPC_LINKAGE_H +#define _ASM_POWERPC_LINKAGE_H + +#ifdef CONFIG_PPC64 +#define cond_syscall(x) \ + asm ("\t.weak " #x "\n\t.set " #x ", sys_ni_syscall\n" \ + "\t.weak ." #x "\n\t.set ." #x ", .sys_ni_syscall\n") +#define SYSCALL_ALIAS(alias, name) \ + asm ("\t.globl " #alias "\n\t.set " #alias ", " #name "\n" \ + "\t.globl ." #alias "\n\t.set ." #alias ", ." #name) +#endif + +#endif /* _ASM_POWERPC_LINKAGE_H */ diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h index ebbec52..43523fe 100644 --- a/arch/powerpc/include/asm/systbl.h +++ b/arch/powerpc/include/asm/systbl.h @@ -190,7 +190,7 @@ SYSCALL_SPU(getcwd) SYSCALL_SPU(capget) SYSCALL_SPU(capset) COMPAT_SYS(sigaltstack) -SYSX_SPU(sys_sendfile,compat_sys_sendfile_wrapper,sys_sendfile) +COMPAT_SYS_SPU(sendfile) SYSCALL(ni_syscall) SYSCALL(ni_syscall) PPC_SYS(vfork) @@ -230,7 +230,7 @@ COMPAT_SYS_SPU(sched_setaffinity) COMPAT_SYS_SPU(sched_getaffinity) SYSCALL(ni_syscall) SYSCALL(ni_syscall) -SYSX(sys_ni_syscall,compat_sys_sendfile64_wrapper,sys_sendfile64) +SYS32ONLY(sendfile64) COMPAT_SYS_SPU(io_setup) SYSCALL_SPU(io_destroy) COMPAT_SYS_SPU(io_getevents) @@ -239,7 +239,7 @@ SYSCALL_SPU(io_cancel) SYSCALL(set_tid_address) SYSX_SPU(sys_fadvise64,ppc32_fadvise64,sys_fadvise64) SYSCALL(exit_group) -SYSX(sys_lookup_dcookie,ppc32_lookup_dcookie,sys_lookup_dcookie) +COMPAT_SYS(lookup_dcookie) SYSCALL_SPU(epoll_create) SYSCALL_SPU(epoll_ctl) SYSCALL_SPU(epoll_wait) @@ -273,8 +273,8 @@ COMPAT_SYS(mq_timedreceive) COMPAT_SYS(mq_notify) COMPAT_SYS(mq_getsetattr) COMPAT_SYS(kexec_load) -COMPAT_SYS(add_key) -COMPAT_SYS(request_key) +SYSCALL(add_key) +SYSCALL(request_key) COMPAT_SYS(keyctl) COMPAT_SYS(waitid) SYSCALL(ioprio_set) diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index 406b7b9..8ceea14 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -182,8 +182,6 @@ static inline bool test_thread_local_flags(unsigned int flags) #define is_32bit_task() (1) #endif -#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) - #endif /* !__ASSEMBLY__ */ #endif /* __KERNEL__ */ diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h index 1487f0f..3ca819f 100644 --- a/arch/powerpc/include/asm/unistd.h +++ b/arch/powerpc/include/asm/unistd.h @@ -56,11 +56,5 @@ #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_CLONE -/* - * "Conditional" syscalls - */ -#define cond_syscall(x) \ - asmlinkage long x (void) __attribute__((weak,alias("sys_ni_syscall"))) - #endif /* __ASSEMBLY__ */ #endif /* _ASM_POWERPC_UNISTD_H_ */ diff --git a/arch/powerpc/include/asm/uprobes.h b/arch/powerpc/include/asm/uprobes.h index b532060..2301602 100644 --- a/arch/powerpc/include/asm/uprobes.h +++ b/arch/powerpc/include/asm/uprobes.h @@ -51,4 +51,5 @@ extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs); extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk); extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data); extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs); +extern unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs *regs); #endif /* _ASM_UPROBES_H */ diff --git a/arch/powerpc/include/uapi/asm/linkage.h b/arch/powerpc/include/uapi/asm/linkage.h deleted file mode 100644 index e1c4ac1..0000000 --- a/arch/powerpc/include/uapi/asm/linkage.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _ASM_POWERPC_LINKAGE_H -#define _ASM_POWERPC_LINKAGE_H - -/* Nothing to see here... */ - -#endif /* _ASM_POWERPC_LINKAGE_H */ diff --git a/arch/powerpc/kernel/crash_dump.c b/arch/powerpc/kernel/crash_dump.c index b3ba516..9ec3fe1 100644 --- a/arch/powerpc/kernel/crash_dump.c +++ b/arch/powerpc/kernel/crash_dump.c @@ -150,10 +150,7 @@ void crash_free_reserved_phys_range(unsigned long begin, unsigned long end) if (addr <= rtas_end && ((addr + PAGE_SIZE) > rtas_start)) continue; - ClearPageReserved(pfn_to_page(addr >> PAGE_SHIFT)); - init_page_count(pfn_to_page(addr >> PAGE_SHIFT)); - free_page((unsigned long)__va(addr)); - totalram_pages++; + free_reserved_page(pfn_to_page(addr >> PAGE_SHIFT)); } } #endif diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index 06c8202..2230fd0 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -1045,10 +1045,7 @@ static void fadump_release_memory(unsigned long begin, unsigned long end) if (addr <= ra_end && ((addr + PAGE_SIZE) > ra_start)) continue; - ClearPageReserved(pfn_to_page(addr >> PAGE_SHIFT)); - init_page_count(pfn_to_page(addr >> PAGE_SHIFT)); - free_page((unsigned long)__va(addr)); - totalram_pages++; + free_reserved_page(pfn_to_page(addr >> PAGE_SHIFT)); } } diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c index ea78761..939ea7e 100644 --- a/arch/powerpc/kernel/idle.c +++ b/arch/powerpc/kernel/idle.c @@ -33,11 +33,6 @@ #include <asm/runlatch.h> #include <asm/smp.h> -#ifdef CONFIG_HOTPLUG_CPU -#define cpu_should_die() cpu_is_offline(smp_processor_id()) -#else -#define cpu_should_die() 0 -#endif unsigned long cpuidle_disable = IDLE_NO_OVERRIDE; EXPORT_SYMBOL(cpuidle_disable); @@ -50,64 +45,38 @@ static int __init powersave_off(char *arg) } __setup("powersave=off", powersave_off); -/* - * The body of the idle task. - */ -void cpu_idle(void) +#ifdef CONFIG_HOTPLUG_CPU +void arch_cpu_idle_dead(void) { - set_thread_flag(TIF_POLLING_NRFLAG); - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - - while (!need_resched() && !cpu_should_die()) { - ppc64_runlatch_off(); - - if (ppc_md.power_save) { - clear_thread_flag(TIF_POLLING_NRFLAG); - /* - * smp_mb is so clearing of TIF_POLLING_NRFLAG - * is ordered w.r.t. need_resched() test. - */ - smp_mb(); - local_irq_disable(); - - /* Don't trace irqs off for idle */ - stop_critical_timings(); - - /* check again after disabling irqs */ - if (!need_resched() && !cpu_should_die()) - ppc_md.power_save(); - - start_critical_timings(); - - /* Some power_save functions return with - * interrupts enabled, some don't. - */ - if (irqs_disabled()) - local_irq_enable(); - set_thread_flag(TIF_POLLING_NRFLAG); - - } else { - /* - * Go into low thread priority and possibly - * low power mode. - */ - HMT_low(); - HMT_very_low(); - } - } + sched_preempt_enable_no_resched(); + cpu_die(); +} +#endif - HMT_medium(); - ppc64_runlatch_on(); - rcu_idle_exit(); - tick_nohz_idle_exit(); - if (cpu_should_die()) { - sched_preempt_enable_no_resched(); - cpu_die(); - } - schedule_preempt_disabled(); +void arch_cpu_idle(void) +{ + ppc64_runlatch_off(); + + if (ppc_md.power_save) { + ppc_md.power_save(); + /* + * Some power_save functions return with + * interrupts enabled, some don't. + */ + if (irqs_disabled()) + local_irq_enable(); + } else { + local_irq_enable(); + /* + * Go into low thread priority and possibly + * low power mode. + */ + HMT_low(); + HMT_very_low(); } + + HMT_medium(); + ppc64_runlatch_on(); } int powersave_nap; diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c index a61b133..6782221 100644 --- a/arch/powerpc/kernel/kvm.c +++ b/arch/powerpc/kernel/kvm.c @@ -756,12 +756,7 @@ static __init void kvm_free_tmp(void) end = (ulong)&kvm_tmp[ARRAY_SIZE(kvm_tmp)] & PAGE_MASK; /* Free the tmp space we don't need */ - for (; start < end; start += PAGE_SIZE) { - ClearPageReserved(virt_to_page(start)); - init_page_count(virt_to_page(start)); - free_page(start); - totalram_pages++; - } + free_reserved_area(start, end, 0, NULL); } static int __init kvm_guest_init(void) diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c index bec1e93..48fbc2b 100644 --- a/arch/powerpc/kernel/nvram_64.c +++ b/arch/powerpc/kernel/nvram_64.c @@ -511,8 +511,7 @@ int __init nvram_scan_partitions(void) "detected: 0-length partition\n"); goto out; } - tmp_part = (struct nvram_partition *) - kmalloc(sizeof(struct nvram_partition), GFP_KERNEL); + tmp_part = kmalloc(sizeof(struct nvram_partition), GFP_KERNEL); err = -ENOMEM; if (!tmp_part) { printk(KERN_ERR "nvram_scan_partitions: kmalloc failed\n"); diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 16e77a8..13a8d9d 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -831,6 +831,8 @@ void show_regs(struct pt_regs * regs) { int i, trap; + show_regs_print_info(KERN_DEFAULT); + printk("NIP: "REG" LR: "REG" CTR: "REG"\n", regs->nip, regs->link, regs->ctr); printk("REGS: %p TRAP: %04lx %s (%s)\n", @@ -850,12 +852,6 @@ void show_regs(struct pt_regs * regs) #else printk("DAR: "REG", DSISR: %08lx\n", regs->dar, regs->dsisr); #endif - printk("TASK = %p[%d] '%s' THREAD: %p", - current, task_pid_nr(current), current->comm, task_thread_info(current)); - -#ifdef CONFIG_SMP - printk(" CPU: %d", raw_smp_processor_id()); -#endif /* CONFIG_SMP */ for (i = 0; i < 32; i++) { if ((i % REGS_PER_LINE) == 0) @@ -1362,12 +1358,6 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) } while (count++ < kstack_depth_to_print); } -void dump_stack(void) -{ - show_stack(current, NULL); -} -EXPORT_SYMBOL(dump_stack); - #ifdef CONFIG_PPC64 /* Called with hard IRQs off */ void __ppc64_runlatch_on(void) diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 76bd9da..ee7ac5e 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -669,7 +669,7 @@ __cpuinit void start_secondary(void *unused) local_irq_enable(); - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); BUG(); } diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c index d0bafc0..cd6e19d 100644 --- a/arch/powerpc/kernel/sys_ppc32.c +++ b/arch/powerpc/kernel/sys_ppc32.c @@ -61,91 +61,6 @@ asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp, return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x)); } -#ifdef CONFIG_SYSVIPC -long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, - u32 fifth) -{ - int version; - - version = call >> 16; /* hack for backward compatibility */ - call &= 0xffff; - - switch (call) { - - case SEMTIMEDOP: - if (fifth) - /* sign extend semid */ - return compat_sys_semtimedop((int)first, - compat_ptr(ptr), second, - compat_ptr(fifth)); - /* else fall through for normal semop() */ - case SEMOP: - /* struct sembuf is the same on 32 and 64bit :)) */ - /* sign extend semid */ - return sys_semtimedop((int)first, compat_ptr(ptr), second, - NULL); - case SEMGET: - /* sign extend key, nsems */ - return sys_semget((int)first, (int)second, third); - case SEMCTL: - /* sign extend semid, semnum */ - return compat_sys_semctl((int)first, (int)second, third, - compat_ptr(ptr)); - - case MSGSND: - /* sign extend msqid */ - return compat_sys_msgsnd((int)first, (int)second, third, - compat_ptr(ptr)); - case MSGRCV: - /* sign extend msqid, msgtyp */ - return compat_sys_msgrcv((int)first, second, (int)fifth, - third, version, compat_ptr(ptr)); - case MSGGET: - /* sign extend key */ - return sys_msgget((int)first, second); - case MSGCTL: - /* sign extend msqid */ - return compat_sys_msgctl((int)first, second, compat_ptr(ptr)); - - case SHMAT: - /* sign extend shmid */ - return compat_sys_shmat((int)first, second, third, version, - compat_ptr(ptr)); - case SHMDT: - return sys_shmdt(compat_ptr(ptr)); - case SHMGET: - /* sign extend key_t */ - return sys_shmget((int)first, second, third); - case SHMCTL: - /* sign extend shmid */ - return compat_sys_shmctl((int)first, second, compat_ptr(ptr)); - - default: - return -ENOSYS; - } - - return -ENOSYS; -} -#endif - -/* Note: it is necessary to treat out_fd and in_fd as unsigned ints, - * with the corresponding cast to a signed int to insure that the - * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) - * and the register representation of a signed int (msr in 64-bit mode) is performed. - */ -asmlinkage long compat_sys_sendfile_wrapper(u32 out_fd, u32 in_fd, - compat_off_t __user *offset, u32 count) -{ - return compat_sys_sendfile((int)out_fd, (int)in_fd, offset, count); -} - -asmlinkage long compat_sys_sendfile64_wrapper(u32 out_fd, u32 in_fd, - compat_loff_t __user *offset, u32 count) -{ - return sys_sendfile((int)out_fd, (int)in_fd, - (off_t __user *)offset, count); -} - unsigned long compat_sys_mmap2(unsigned long addr, size_t len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) @@ -195,13 +110,6 @@ asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long h return sys_ftruncate(fd, (high << 32) | low); } -long ppc32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf, - size_t len) -{ - return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low, - buf, len); -} - long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low, size_t len, int advice) { @@ -209,23 +117,6 @@ long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low, advice); } -asmlinkage long compat_sys_add_key(const char __user *_type, - const char __user *_description, - const void __user *_payload, - u32 plen, - u32 ringid) -{ - return sys_add_key(_type, _description, _payload, plen, ringid); -} - -asmlinkage long compat_sys_request_key(const char __user *_type, - const char __user *_description, - const char __user *_callout_info, - u32 destringid) -{ - return sys_request_key(_type, _description, _callout_info, destringid); -} - asmlinkage long compat_sys_sync_file_range2(int fd, unsigned int flags, unsigned offset_hi, unsigned offset_lo, unsigned nbytes_hi, unsigned nbytes_lo) diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c index f974849..13b8670 100644 --- a/arch/powerpc/kernel/udbg.c +++ b/arch/powerpc/kernel/udbg.c @@ -156,15 +156,13 @@ static struct console udbg_console = { .index = 0, }; -static int early_console_initialized; - /* * Called by setup_system after ppc_md->probe and ppc_md->early_init. * Call it again after setting udbg_putc in ppc_md->setup_arch. */ void __init register_early_udbg_console(void) { - if (early_console_initialized) + if (early_console) return; if (!udbg_putc) @@ -174,7 +172,7 @@ void __init register_early_udbg_console(void) printk(KERN_INFO "early console immortal !\n"); udbg_console.flags &= ~CON_BOOT; } - early_console_initialized = 1; + early_console = &udbg_console; register_console(&udbg_console); } diff --git a/arch/powerpc/kernel/uprobes.c b/arch/powerpc/kernel/uprobes.c index bc77834..59f419b 100644 --- a/arch/powerpc/kernel/uprobes.c +++ b/arch/powerpc/kernel/uprobes.c @@ -31,6 +31,16 @@ #define UPROBE_TRAP_NR UINT_MAX /** + * is_trap_insn - check if the instruction is a trap variant + * @insn: instruction to be checked. + * Returns true if @insn is a trap variant. + */ +bool is_trap_insn(uprobe_opcode_t *insn) +{ + return (is_trap(*insn)); +} + +/** * arch_uprobe_analyze_insn * @mm: the probed address space. * @arch_uprobe: the probepoint information. @@ -43,12 +53,6 @@ int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe, if (addr & 0x03) return -EINVAL; - /* - * We currently don't support a uprobe on an already - * existing breakpoint instruction underneath - */ - if (is_trap(auprobe->ainsn)) - return -ENOTSUPP; return 0; } @@ -188,3 +192,16 @@ bool arch_uprobe_skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs) return false; } + +unsigned long +arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs *regs) +{ + unsigned long orig_ret_vaddr; + + orig_ret_vaddr = regs->link; + + /* Replace the return addr with trampoline addr */ + regs->link = trampoline_vaddr; + + return orig_ret_vaddr; +} diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index 5e93438..dbdc15a 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -1039,7 +1039,7 @@ struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id) if (!vcpu_book3s) goto out; - vcpu_book3s->shadow_vcpu = (struct kvmppc_book3s_shadow_vcpu *) + vcpu_book3s->shadow_vcpu = kzalloc(sizeof(*vcpu_book3s->shadow_vcpu), GFP_KERNEL); if (!vcpu_book3s->shadow_vcpu) goto free_vcpu; diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c index 7e2246f..5a535b7 100644 --- a/arch/powerpc/mm/init_64.c +++ b/arch/powerpc/mm/init_64.c @@ -263,19 +263,14 @@ static __meminit void vmemmap_list_populate(unsigned long phys, vmemmap_list = vmem_back; } -int __meminit vmemmap_populate(struct page *start_page, - unsigned long nr_pages, int node) +int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node) { - unsigned long start = (unsigned long)start_page; - unsigned long end = (unsigned long)(start_page + nr_pages); unsigned long page_size = 1 << mmu_psize_defs[mmu_vmemmap_psize].shift; /* Align to the page size of the linear mapping. */ start = _ALIGN_DOWN(start, page_size); - pr_debug("vmemmap_populate page %p, %ld pages, node %d\n", - start_page, nr_pages, node); - pr_debug(" -> map %lx..%lx\n", start, end); + pr_debug("vmemmap_populate %lx..%lx, node %d\n", start, end, node); for (; start < end; start += page_size) { void *p; @@ -298,7 +293,7 @@ int __meminit vmemmap_populate(struct page *start_page, return 0; } -void vmemmap_free(struct page *memmap, unsigned long nr_pages) +void vmemmap_free(unsigned long start, unsigned long end) { } diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index f1f7409..cd76c45 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -352,13 +352,9 @@ void __init mem_init(void) struct page *page = pfn_to_page(pfn); if (memblock_is_reserved(paddr)) continue; - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - totalhigh_pages++; + free_highmem_page(page); reservedpages--; } - totalram_pages += totalhigh_pages; printk(KERN_DEBUG "High memory: %luk\n", totalhigh_pages << (PAGE_SHIFT-10)); } @@ -405,39 +401,14 @@ void __init mem_init(void) void free_initmem(void) { - unsigned long addr; - ppc_md.progress = ppc_printk_progress; - - addr = (unsigned long)__init_begin; - for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) { - memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE); - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } - pr_info("Freeing unused kernel memory: %luk freed\n", - ((unsigned long)__init_end - - (unsigned long)__init_begin) >> 10); + free_initmem_default(POISON_FREE_INITMEM); } #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - if (start >= end) - return; - - start = _ALIGN_DOWN(start, PAGE_SIZE); - end = _ALIGN_UP(end, PAGE_SIZE); - pr_info("Freeing initrd memory: %ldk freed\n", (end - start) >> 10); - - for (; start < end; start += PAGE_SIZE) { - ClearPageReserved(virt_to_page(start)); - init_page_count(virt_to_page(start)); - free_page(start); - totalram_pages++; - } + free_reserved_area(start, end, 0, "initrd"); } #endif diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index bba87ca..fa33c54 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -22,6 +22,7 @@ #include <linux/pfn.h> #include <linux/cpuset.h> #include <linux/node.h> +#include <linux/slab.h> #include <asm/sparsemem.h> #include <asm/prom.h> #include <asm/smp.h> @@ -62,14 +63,11 @@ static int distance_lookup_table[MAX_NUMNODES][MAX_DISTANCE_REF_POINTS]; */ static void __init setup_node_to_cpumask_map(void) { - unsigned int node, num = 0; + unsigned int node; /* setup nr_node_ids if not done yet */ - if (nr_node_ids == MAX_NUMNODES) { - for_each_node_mask(node, node_possible_map) - num = node; - nr_node_ids = num + 1; - } + if (nr_node_ids == MAX_NUMNODES) + setup_nr_node_ids(); /* allocate the map */ for (node = 0; node < nr_node_ids; node++) diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig index 0effe9f..7be9336 100644 --- a/arch/powerpc/platforms/44x/Kconfig +++ b/arch/powerpc/platforms/44x/Kconfig @@ -274,6 +274,8 @@ config 440EPX select IBM_EMAC_EMAC4 select IBM_EMAC_RGMII select IBM_EMAC_ZMII + select USB_EHCI_BIG_ENDIAN_MMIO + select USB_EHCI_BIG_ENDIAN_DESC config 440GRX bool diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig index c169998..381a592 100644 --- a/arch/powerpc/platforms/512x/Kconfig +++ b/arch/powerpc/platforms/512x/Kconfig @@ -7,6 +7,8 @@ config PPC_MPC512x select PPC_PCI_CHOICE select FSL_PCI if PCI select ARCH_WANT_OPTIONAL_GPIOLIB + select USB_EHCI_BIG_ENDIAN_MMIO + select USB_EHCI_BIG_ENDIAN_DESC config MPC5121_ADS bool "Freescale MPC5121E ADS" diff --git a/arch/powerpc/platforms/512x/mpc512x_shared.c b/arch/powerpc/platforms/512x/mpc512x_shared.c index d30235b..db6ac38 100644 --- a/arch/powerpc/platforms/512x/mpc512x_shared.c +++ b/arch/powerpc/platforms/512x/mpc512x_shared.c @@ -172,12 +172,9 @@ static struct fsl_diu_shared_fb __attribute__ ((__aligned__(8))) diu_shared_fb; static inline void mpc512x_free_bootmem(struct page *page) { - __ClearPageReserved(page); BUG_ON(PageTail(page)); BUG_ON(atomic_read(&page->_count) > 1); - atomic_set(&page->_count, 1); - __free_page(page); - totalram_pages++; + free_reserved_page(page); } void mpc512x_release_bootmem(void) diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig index 53aaefe..9978f59 100644 --- a/arch/powerpc/platforms/cell/Kconfig +++ b/arch/powerpc/platforms/cell/Kconfig @@ -113,34 +113,10 @@ config CBE_THERM default m depends on CBE_RAS && SPU_BASE -config CBE_CPUFREQ - tristate "CBE frequency scaling" - depends on CBE_RAS && CPU_FREQ - default m - help - This adds the cpufreq driver for Cell BE processors. - For details, take a look at <file:Documentation/cpu-freq/>. - If you don't have such processor, say N - -config CBE_CPUFREQ_PMI_ENABLE - bool "CBE frequency scaling using PMI interface" - depends on CBE_CPUFREQ - default n - help - Select this, if you want to use the PMI interface - to switch frequencies. Using PMI, the - processor will not only be able to run at lower speed, - but also at lower core voltage. - -config CBE_CPUFREQ_PMI - tristate - depends on CBE_CPUFREQ_PMI_ENABLE - default CBE_CPUFREQ - config PPC_PMI tristate default y - depends on CBE_CPUFREQ_PMI || PPC_IBM_CELL_POWERBUTTON + depends on CPU_FREQ_CBE_PMI || PPC_IBM_CELL_POWERBUTTON help PMI (Platform Management Interrupt) is a way to communicate with the BMC (Baseboard Management Controller). diff --git a/arch/powerpc/platforms/cell/Makefile b/arch/powerpc/platforms/cell/Makefile index a4a8935..fe053e7 100644 --- a/arch/powerpc/platforms/cell/Makefile +++ b/arch/powerpc/platforms/cell/Makefile @@ -5,9 +5,6 @@ obj-$(CONFIG_PPC_CELL_NATIVE) += iommu.o setup.o spider-pic.o \ obj-$(CONFIG_CBE_RAS) += ras.o obj-$(CONFIG_CBE_THERM) += cbe_thermal.o -obj-$(CONFIG_CBE_CPUFREQ_PMI) += cbe_cpufreq_pmi.o -obj-$(CONFIG_CBE_CPUFREQ) += cbe-cpufreq.o -cbe-cpufreq-y += cbe_cpufreq_pervasive.o cbe_cpufreq.o obj-$(CONFIG_CBE_CPUFREQ_SPU_GOVERNOR) += cpufreq_spudemand.o obj-$(CONFIG_PPC_IBM_CELL_POWERBUTTON) += cbe_powerbutton.o diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq.c b/arch/powerpc/platforms/cell/cbe_cpufreq.c deleted file mode 100644 index d4c39e3..0000000 --- a/arch/powerpc/platforms/cell/cbe_cpufreq.c +++ /dev/null @@ -1,209 +0,0 @@ -/* - * cpufreq driver for the cell processor - * - * (C) Copyright IBM Deutschland Entwicklung GmbH 2005-2007 - * - * Author: Christian Krafft <krafft@de.ibm.com> - * - * 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/cpufreq.h> -#include <linux/module.h> -#include <linux/of_platform.h> - -#include <asm/machdep.h> -#include <asm/prom.h> -#include <asm/cell-regs.h> -#include "cbe_cpufreq.h" - -static DEFINE_MUTEX(cbe_switch_mutex); - - -/* the CBE supports an 8 step frequency scaling */ -static struct cpufreq_frequency_table cbe_freqs[] = { - {1, 0}, - {2, 0}, - {3, 0}, - {4, 0}, - {5, 0}, - {6, 0}, - {8, 0}, - {10, 0}, - {0, CPUFREQ_TABLE_END}, -}; - -/* - * hardware specific functions - */ - -static int set_pmode(unsigned int cpu, unsigned int slow_mode) -{ - int rc; - - if (cbe_cpufreq_has_pmi) - rc = cbe_cpufreq_set_pmode_pmi(cpu, slow_mode); - else - rc = cbe_cpufreq_set_pmode(cpu, slow_mode); - - pr_debug("register contains slow mode %d\n", cbe_cpufreq_get_pmode(cpu)); - - return rc; -} - -/* - * cpufreq functions - */ - -static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy) -{ - const u32 *max_freqp; - u32 max_freq; - int i, cur_pmode; - struct device_node *cpu; - - cpu = of_get_cpu_node(policy->cpu, NULL); - - if (!cpu) - return -ENODEV; - - pr_debug("init cpufreq on CPU %d\n", policy->cpu); - - /* - * Let's check we can actually get to the CELL regs - */ - if (!cbe_get_cpu_pmd_regs(policy->cpu) || - !cbe_get_cpu_mic_tm_regs(policy->cpu)) { - pr_info("invalid CBE regs pointers for cpufreq\n"); - return -EINVAL; - } - - max_freqp = of_get_property(cpu, "clock-frequency", NULL); - - of_node_put(cpu); - - if (!max_freqp) - return -EINVAL; - - /* we need the freq in kHz */ - max_freq = *max_freqp / 1000; - - pr_debug("max clock-frequency is at %u kHz\n", max_freq); - pr_debug("initializing frequency table\n"); - - /* initialize frequency table */ - for (i=0; cbe_freqs[i].frequency!=CPUFREQ_TABLE_END; i++) { - cbe_freqs[i].frequency = max_freq / cbe_freqs[i].index; - pr_debug("%d: %d\n", i, cbe_freqs[i].frequency); - } - - /* if DEBUG is enabled set_pmode() measures the latency - * of a transition */ - policy->cpuinfo.transition_latency = 25000; - - cur_pmode = cbe_cpufreq_get_pmode(policy->cpu); - pr_debug("current pmode is at %d\n",cur_pmode); - - policy->cur = cbe_freqs[cur_pmode].frequency; - -#ifdef CONFIG_SMP - cpumask_copy(policy->cpus, cpu_sibling_mask(policy->cpu)); -#endif - - cpufreq_frequency_table_get_attr(cbe_freqs, policy->cpu); - - /* this ensures that policy->cpuinfo_min - * and policy->cpuinfo_max are set correctly */ - return cpufreq_frequency_table_cpuinfo(policy, cbe_freqs); -} - -static int cbe_cpufreq_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static int cbe_cpufreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, cbe_freqs); -} - -static int cbe_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - int rc; - struct cpufreq_freqs freqs; - unsigned int cbe_pmode_new; - - cpufreq_frequency_table_target(policy, - cbe_freqs, - target_freq, - relation, - &cbe_pmode_new); - - freqs.old = policy->cur; - freqs.new = cbe_freqs[cbe_pmode_new].frequency; - freqs.cpu = policy->cpu; - - mutex_lock(&cbe_switch_mutex); - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - pr_debug("setting frequency for cpu %d to %d kHz, " \ - "1/%d of max frequency\n", - policy->cpu, - cbe_freqs[cbe_pmode_new].frequency, - cbe_freqs[cbe_pmode_new].index); - - rc = set_pmode(policy->cpu, cbe_pmode_new); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - mutex_unlock(&cbe_switch_mutex); - - return rc; -} - -static struct cpufreq_driver cbe_cpufreq_driver = { - .verify = cbe_cpufreq_verify, - .target = cbe_cpufreq_target, - .init = cbe_cpufreq_cpu_init, - .exit = cbe_cpufreq_cpu_exit, - .name = "cbe-cpufreq", - .owner = THIS_MODULE, - .flags = CPUFREQ_CONST_LOOPS, -}; - -/* - * module init and destoy - */ - -static int __init cbe_cpufreq_init(void) -{ - if (!machine_is(cell)) - return -ENODEV; - - return cpufreq_register_driver(&cbe_cpufreq_driver); -} - -static void __exit cbe_cpufreq_exit(void) -{ - cpufreq_unregister_driver(&cbe_cpufreq_driver); -} - -module_init(cbe_cpufreq_init); -module_exit(cbe_cpufreq_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Christian Krafft <krafft@de.ibm.com>"); diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq.h b/arch/powerpc/platforms/cell/cbe_cpufreq.h deleted file mode 100644 index c1d86bf..0000000 --- a/arch/powerpc/platforms/cell/cbe_cpufreq.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * cbe_cpufreq.h - * - * This file contains the definitions used by the cbe_cpufreq driver. - * - * (C) Copyright IBM Deutschland Entwicklung GmbH 2005-2007 - * - * Author: Christian Krafft <krafft@de.ibm.com> - * - */ - -#include <linux/cpufreq.h> -#include <linux/types.h> - -int cbe_cpufreq_set_pmode(int cpu, unsigned int pmode); -int cbe_cpufreq_get_pmode(int cpu); - -int cbe_cpufreq_set_pmode_pmi(int cpu, unsigned int pmode); - -#if defined(CONFIG_CBE_CPUFREQ_PMI) || defined(CONFIG_CBE_CPUFREQ_PMI_MODULE) -extern bool cbe_cpufreq_has_pmi; -#else -#define cbe_cpufreq_has_pmi (0) -#endif diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq_pervasive.c b/arch/powerpc/platforms/cell/cbe_cpufreq_pervasive.c deleted file mode 100644 index 20472e4..0000000 --- a/arch/powerpc/platforms/cell/cbe_cpufreq_pervasive.c +++ /dev/null @@ -1,115 +0,0 @@ -/* - * pervasive backend for the cbe_cpufreq driver - * - * This driver makes use of the pervasive unit to - * engage the desired frequency. - * - * (C) Copyright IBM Deutschland Entwicklung GmbH 2005-2007 - * - * Author: Christian Krafft <krafft@de.ibm.com> - * - * 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/time.h> -#include <asm/machdep.h> -#include <asm/hw_irq.h> -#include <asm/cell-regs.h> - -#include "cbe_cpufreq.h" - -/* to write to MIC register */ -static u64 MIC_Slow_Fast_Timer_table[] = { - [0 ... 7] = 0x007fc00000000000ull, -}; - -/* more values for the MIC */ -static u64 MIC_Slow_Next_Timer_table[] = { - 0x0000240000000000ull, - 0x0000268000000000ull, - 0x000029C000000000ull, - 0x00002D0000000000ull, - 0x0000300000000000ull, - 0x0000334000000000ull, - 0x000039C000000000ull, - 0x00003FC000000000ull, -}; - - -int cbe_cpufreq_set_pmode(int cpu, unsigned int pmode) -{ - struct cbe_pmd_regs __iomem *pmd_regs; - struct cbe_mic_tm_regs __iomem *mic_tm_regs; - unsigned long flags; - u64 value; -#ifdef DEBUG - long time; -#endif - - local_irq_save(flags); - - mic_tm_regs = cbe_get_cpu_mic_tm_regs(cpu); - pmd_regs = cbe_get_cpu_pmd_regs(cpu); - -#ifdef DEBUG - time = jiffies; -#endif - - out_be64(&mic_tm_regs->slow_fast_timer_0, MIC_Slow_Fast_Timer_table[pmode]); - out_be64(&mic_tm_regs->slow_fast_timer_1, MIC_Slow_Fast_Timer_table[pmode]); - - out_be64(&mic_tm_regs->slow_next_timer_0, MIC_Slow_Next_Timer_table[pmode]); - out_be64(&mic_tm_regs->slow_next_timer_1, MIC_Slow_Next_Timer_table[pmode]); - - value = in_be64(&pmd_regs->pmcr); - /* set bits to zero */ - value &= 0xFFFFFFFFFFFFFFF8ull; - /* set bits to next pmode */ - value |= pmode; - - out_be64(&pmd_regs->pmcr, value); - -#ifdef DEBUG - /* wait until new pmode appears in status register */ - value = in_be64(&pmd_regs->pmsr) & 0x07; - while (value != pmode) { - cpu_relax(); - value = in_be64(&pmd_regs->pmsr) & 0x07; - } - - time = jiffies - time; - time = jiffies_to_msecs(time); - pr_debug("had to wait %lu ms for a transition using " \ - "pervasive unit\n", time); -#endif - local_irq_restore(flags); - - return 0; -} - - -int cbe_cpufreq_get_pmode(int cpu) -{ - int ret; - struct cbe_pmd_regs __iomem *pmd_regs; - - pmd_regs = cbe_get_cpu_pmd_regs(cpu); - ret = in_be64(&pmd_regs->pmsr) & 0x07; - - return ret; -} - diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c b/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c deleted file mode 100644 index 60a07a4..0000000 --- a/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * pmi backend for the cbe_cpufreq driver - * - * (C) Copyright IBM Deutschland Entwicklung GmbH 2005-2007 - * - * Author: Christian Krafft <krafft@de.ibm.com> - * - * 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/timer.h> -#include <linux/module.h> -#include <linux/of_platform.h> - -#include <asm/processor.h> -#include <asm/prom.h> -#include <asm/pmi.h> -#include <asm/cell-regs.h> - -#ifdef DEBUG -#include <asm/time.h> -#endif - -#include "cbe_cpufreq.h" - -static u8 pmi_slow_mode_limit[MAX_CBE]; - -bool cbe_cpufreq_has_pmi = false; -EXPORT_SYMBOL_GPL(cbe_cpufreq_has_pmi); - -/* - * hardware specific functions - */ - -int cbe_cpufreq_set_pmode_pmi(int cpu, unsigned int pmode) -{ - int ret; - pmi_message_t pmi_msg; -#ifdef DEBUG - long time; -#endif - pmi_msg.type = PMI_TYPE_FREQ_CHANGE; - pmi_msg.data1 = cbe_cpu_to_node(cpu); - pmi_msg.data2 = pmode; - -#ifdef DEBUG - time = jiffies; -#endif - pmi_send_message(pmi_msg); - -#ifdef DEBUG - time = jiffies - time; - time = jiffies_to_msecs(time); - pr_debug("had to wait %lu ms for a transition using " \ - "PMI\n", time); -#endif - ret = pmi_msg.data2; - pr_debug("PMI returned slow mode %d\n", ret); - - return ret; -} -EXPORT_SYMBOL_GPL(cbe_cpufreq_set_pmode_pmi); - - -static void cbe_cpufreq_handle_pmi(pmi_message_t pmi_msg) -{ - u8 node, slow_mode; - - BUG_ON(pmi_msg.type != PMI_TYPE_FREQ_CHANGE); - - node = pmi_msg.data1; - slow_mode = pmi_msg.data2; - - pmi_slow_mode_limit[node] = slow_mode; - - pr_debug("cbe_handle_pmi: node: %d max_freq: %d\n", node, slow_mode); -} - -static int pmi_notifier(struct notifier_block *nb, - unsigned long event, void *data) -{ - struct cpufreq_policy *policy = data; - struct cpufreq_frequency_table *cbe_freqs; - u8 node; - - /* Should this really be called for CPUFREQ_ADJUST, CPUFREQ_INCOMPATIBLE - * and CPUFREQ_NOTIFY policy events?) - */ - if (event == CPUFREQ_START) - return 0; - - cbe_freqs = cpufreq_frequency_get_table(policy->cpu); - node = cbe_cpu_to_node(policy->cpu); - - pr_debug("got notified, event=%lu, node=%u\n", event, node); - - if (pmi_slow_mode_limit[node] != 0) { - pr_debug("limiting node %d to slow mode %d\n", - node, pmi_slow_mode_limit[node]); - - cpufreq_verify_within_limits(policy, 0, - - cbe_freqs[pmi_slow_mode_limit[node]].frequency); - } - - return 0; -} - -static struct notifier_block pmi_notifier_block = { - .notifier_call = pmi_notifier, -}; - -static struct pmi_handler cbe_pmi_handler = { - .type = PMI_TYPE_FREQ_CHANGE, - .handle_pmi_message = cbe_cpufreq_handle_pmi, -}; - - - -static int __init cbe_cpufreq_pmi_init(void) -{ - cbe_cpufreq_has_pmi = pmi_register_handler(&cbe_pmi_handler) == 0; - - if (!cbe_cpufreq_has_pmi) - return -ENODEV; - - cpufreq_register_notifier(&pmi_notifier_block, CPUFREQ_POLICY_NOTIFIER); - - return 0; -} - -static void __exit cbe_cpufreq_pmi_exit(void) -{ - cpufreq_unregister_notifier(&pmi_notifier_block, CPUFREQ_POLICY_NOTIFIER); - pmi_unregister_handler(&cbe_pmi_handler); -} - -module_init(cbe_cpufreq_pmi_init); -module_exit(cbe_cpufreq_pmi_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Christian Krafft <krafft@de.ibm.com>"); diff --git a/arch/powerpc/platforms/pasemi/cpufreq.c b/arch/powerpc/platforms/pasemi/cpufreq.c index 890f30e..be1e795 100644 --- a/arch/powerpc/platforms/pasemi/cpufreq.c +++ b/arch/powerpc/platforms/pasemi/cpufreq.c @@ -273,10 +273,9 @@ static int pas_cpufreq_target(struct cpufreq_policy *policy, freqs.old = policy->cur; freqs.new = pas_freqs[pas_astate_new].frequency; - freqs.cpu = policy->cpu; mutex_lock(&pas_switch_mutex); - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); pr_debug("setting frequency for cpu %d to %d kHz, 1/%d of max frequency\n", policy->cpu, @@ -288,7 +287,7 @@ static int pas_cpufreq_target(struct cpufreq_policy *policy, for_each_online_cpu(i) set_astate(i, pas_astate_new); - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); mutex_unlock(&pas_switch_mutex); ppc_proc_freq = freqs.new * 1000ul; diff --git a/arch/powerpc/platforms/powermac/cpufreq_32.c b/arch/powerpc/platforms/powermac/cpufreq_32.c index 311b804..3104fad 100644 --- a/arch/powerpc/platforms/powermac/cpufreq_32.c +++ b/arch/powerpc/platforms/powermac/cpufreq_32.c @@ -335,7 +335,8 @@ static int pmu_set_cpu_speed(int low_speed) return 0; } -static int do_set_cpu_speed(int speed_mode, int notify) +static int do_set_cpu_speed(struct cpufreq_policy *policy, int speed_mode, + int notify) { struct cpufreq_freqs freqs; unsigned long l3cr; @@ -343,13 +344,12 @@ static int do_set_cpu_speed(int speed_mode, int notify) freqs.old = cur_freq; freqs.new = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq; - freqs.cpu = smp_processor_id(); if (freqs.old == freqs.new) return 0; if (notify) - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); if (speed_mode == CPUFREQ_LOW && cpu_has_feature(CPU_FTR_L3CR)) { l3cr = _get_L3CR(); @@ -366,7 +366,7 @@ static int do_set_cpu_speed(int speed_mode, int notify) _set_L3CR(prev_l3cr); } if (notify) - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); cur_freq = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq; return 0; @@ -393,7 +393,7 @@ static int pmac_cpufreq_target( struct cpufreq_policy *policy, target_freq, relation, &newstate)) return -EINVAL; - rc = do_set_cpu_speed(newstate, 1); + rc = do_set_cpu_speed(policy, newstate, 1); ppc_proc_freq = cur_freq * 1000ul; return rc; @@ -442,7 +442,7 @@ static int pmac_cpufreq_suspend(struct cpufreq_policy *policy) no_schedule = 1; sleep_freq = cur_freq; if (cur_freq == low_freq && !is_pmu_based) - do_set_cpu_speed(CPUFREQ_HIGH, 0); + do_set_cpu_speed(policy, CPUFREQ_HIGH, 0); return 0; } @@ -458,7 +458,7 @@ static int pmac_cpufreq_resume(struct cpufreq_policy *policy) * is that we force a switch to whatever it was, which is * probably high speed due to our suspend() routine */ - do_set_cpu_speed(sleep_freq == low_freq ? + do_set_cpu_speed(policy, sleep_freq == low_freq ? CPUFREQ_LOW : CPUFREQ_HIGH, 0); ppc_proc_freq = cur_freq * 1000ul; diff --git a/arch/powerpc/platforms/powermac/cpufreq_64.c b/arch/powerpc/platforms/powermac/cpufreq_64.c index 9650c602..7ba4234 100644 --- a/arch/powerpc/platforms/powermac/cpufreq_64.c +++ b/arch/powerpc/platforms/powermac/cpufreq_64.c @@ -339,11 +339,10 @@ static int g5_cpufreq_target(struct cpufreq_policy *policy, freqs.old = g5_cpu_freqs[g5_pmode_cur].frequency; freqs.new = g5_cpu_freqs[newstate].frequency; - freqs.cpu = 0; - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); rc = g5_switch_freq(newstate); - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); mutex_unlock(&g5_switch_mutex); diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c index 2372c60..9a432de 100644 --- a/arch/powerpc/platforms/pseries/hotplug-memory.c +++ b/arch/powerpc/platforms/pseries/hotplug-memory.c @@ -72,6 +72,7 @@ unsigned long memory_block_size_bytes(void) return get_memblock_size(); } +#ifdef CONFIG_MEMORY_HOTREMOVE static int pseries_remove_memblock(unsigned long base, unsigned int memblock_size) { unsigned long start, start_pfn; @@ -153,6 +154,17 @@ static int pseries_remove_memory(struct device_node *np) ret = pseries_remove_memblock(base, lmb_size); return ret; } +#else +static inline int pseries_remove_memblock(unsigned long base, + unsigned int memblock_size) +{ + return -EOPNOTSUPP; +} +static inline int pseries_remove_memory(struct device_node *np) +{ + return -EOPNOTSUPP; +} +#endif /* CONFIG_MEMORY_HOTREMOVE */ static int pseries_add_memory(struct device_node *np) { diff --git a/arch/powerpc/platforms/pseries/processor_idle.c b/arch/powerpc/platforms/pseries/processor_idle.c index 4d806b4..4644efa0 100644 --- a/arch/powerpc/platforms/pseries/processor_idle.c +++ b/arch/powerpc/platforms/pseries/processor_idle.c @@ -23,8 +23,8 @@ #include "pseries.h" struct cpuidle_driver pseries_idle_driver = { - .name = "pseries_idle", - .owner = THIS_MODULE, + .name = "pseries_idle", + .owner = THIS_MODULE, }; #define MAX_IDLE_STATE_COUNT 2 @@ -33,10 +33,8 @@ static int max_idle_state = MAX_IDLE_STATE_COUNT - 1; static struct cpuidle_device __percpu *pseries_cpuidle_devices; static struct cpuidle_state *cpuidle_state_table; -static inline void idle_loop_prolog(unsigned long *in_purr, ktime_t *kt_before) +static inline void idle_loop_prolog(unsigned long *in_purr) { - - *kt_before = ktime_get(); *in_purr = mfspr(SPRN_PURR); /* * Indicate to the HV that we are idle. Now would be @@ -45,12 +43,10 @@ static inline void idle_loop_prolog(unsigned long *in_purr, ktime_t *kt_before) get_lppaca()->idle = 1; } -static inline s64 idle_loop_epilog(unsigned long in_purr, ktime_t kt_before) +static inline void idle_loop_epilog(unsigned long in_purr) { get_lppaca()->wait_state_cycles += mfspr(SPRN_PURR) - in_purr; get_lppaca()->idle = 0; - - return ktime_to_us(ktime_sub(ktime_get(), kt_before)); } static int snooze_loop(struct cpuidle_device *dev, @@ -58,10 +54,9 @@ static int snooze_loop(struct cpuidle_device *dev, int index) { unsigned long in_purr; - ktime_t kt_before; int cpu = dev->cpu; - idle_loop_prolog(&in_purr, &kt_before); + idle_loop_prolog(&in_purr); local_irq_enable(); set_thread_flag(TIF_POLLING_NRFLAG); @@ -75,8 +70,8 @@ static int snooze_loop(struct cpuidle_device *dev, clear_thread_flag(TIF_POLLING_NRFLAG); smp_mb(); - dev->last_residency = - (int)idle_loop_epilog(in_purr, kt_before); + idle_loop_epilog(in_purr); + return index; } @@ -102,9 +97,8 @@ static int dedicated_cede_loop(struct cpuidle_device *dev, int index) { unsigned long in_purr; - ktime_t kt_before; - idle_loop_prolog(&in_purr, &kt_before); + idle_loop_prolog(&in_purr); get_lppaca()->donate_dedicated_cpu = 1; ppc64_runlatch_off(); @@ -112,8 +106,9 @@ static int dedicated_cede_loop(struct cpuidle_device *dev, check_and_cede_processor(); get_lppaca()->donate_dedicated_cpu = 0; - dev->last_residency = - (int)idle_loop_epilog(in_purr, kt_before); + + idle_loop_epilog(in_purr); + return index; } @@ -122,9 +117,8 @@ static int shared_cede_loop(struct cpuidle_device *dev, int index) { unsigned long in_purr; - ktime_t kt_before; - idle_loop_prolog(&in_purr, &kt_before); + idle_loop_prolog(&in_purr); /* * Yield the processor to the hypervisor. We return if @@ -135,8 +129,8 @@ static int shared_cede_loop(struct cpuidle_device *dev, */ check_and_cede_processor(); - dev->last_residency = - (int)idle_loop_epilog(in_purr, kt_before); + idle_loop_epilog(in_purr); + return index; } diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 13f85de..3e34cd2 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -2947,7 +2947,7 @@ static void sysrq_handle_xmon(int key) static struct sysrq_key_op sysrq_xmon_op = { .handler = sysrq_handle_xmon, - .help_msg = "Xmon", + .help_msg = "xmon(x)", .action_msg = "Entering xmon", }; diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index eb8fb62..2c9789d 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -91,6 +91,7 @@ config S390 select ARCH_INLINE_WRITE_UNLOCK_BH select ARCH_INLINE_WRITE_UNLOCK_IRQ select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE + select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS select ARCH_SAVE_PAGE_KEYS if HIBERNATION select ARCH_WANT_IPC_PARSE_VERSION select BUILDTIME_EXTABLE_SORT @@ -131,7 +132,6 @@ config S390 select HAVE_PERF_EVENTS select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_SYSCALL_TRACEPOINTS - select HAVE_SYSCALL_WRAPPERS select HAVE_UID16 if 32BIT select HAVE_VIRT_CPU_ACCOUNTING select VIRT_TO_BUS @@ -375,19 +375,6 @@ config PACK_STACK Say Y if you are unsure. -config SMALL_STACK - def_bool n - prompt "Use 8kb for kernel stack instead of 16kb" - depends on PACK_STACK && 64BIT && !LOCKDEP - help - If you say Y here and the compiler supports the -mkernel-backchain - option the kernel will use a smaller kernel stack size. The reduced - size is 8kb instead of 16kb. This allows to run more threads on a - system and reduces the pressure on the memory management for higher - order page allocations. - - Say N if you are unsure. - config CHECK_STACK def_bool y prompt "Detect kernel stack overflow" diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug index fc32a2d..c56878e 100644 --- a/arch/s390/Kconfig.debug +++ b/arch/s390/Kconfig.debug @@ -17,20 +17,6 @@ config STRICT_DEVMEM If you are unsure, say Y. -config DEBUG_STRICT_USER_COPY_CHECKS - def_bool n - prompt "Strict user copy size checks" - ---help--- - Enabling this option turns a certain set of sanity checks for user - copy operations into compile time warnings. - - The copy_from_user() etc checks are there to help test if there - are sufficient security checks on the length argument of - the copy operation, by having gcc prove that the argument is - within bounds. - - If unsure, or if you run an older (pre 4.4) gcc, say N. - config S390_PTDUMP bool "Export kernel pagetable layout to userspace via debugfs" depends on DEBUG_KERNEL diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 7e3ce78..a7d68a4 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -55,22 +55,12 @@ cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls ifeq ($(call cc-option-yn,-mkernel-backchain),y) cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK -cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK -aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK -ifdef CONFIG_SMALL_STACK -STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) ) -endif endif # new style option for packed stacks ifeq ($(call cc-option-yn,-mpacked-stack),y) cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK -cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK -aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK -ifdef CONFIG_SMALL_STACK -STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) ) -endif endif ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y) diff --git a/arch/s390/hypfs/hypfs_dbfs.c b/arch/s390/hypfs/hypfs_dbfs.c index 9fd4a40..bb5dd49 100644 --- a/arch/s390/hypfs/hypfs_dbfs.c +++ b/arch/s390/hypfs/hypfs_dbfs.c @@ -105,9 +105,7 @@ void hypfs_dbfs_remove_file(struct hypfs_dbfs_file *df) int hypfs_dbfs_init(void) { dbfs_dir = debugfs_create_dir("s390_hypfs", NULL); - if (IS_ERR(dbfs_dir)) - return PTR_ERR(dbfs_dir); - return 0; + return PTR_RET(dbfs_dir); } void hypfs_dbfs_exit(void) diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index 1542293..4d8604e 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -61,8 +61,6 @@ extern const char _sb_findmap[]; #ifndef CONFIG_64BIT -#define __BITOPS_ALIGN 3 -#define __BITOPS_WORDSIZE 32 #define __BITOPS_OR "or" #define __BITOPS_AND "nr" #define __BITOPS_XOR "xr" @@ -81,8 +79,6 @@ extern const char _sb_findmap[]; #else /* CONFIG_64BIT */ -#define __BITOPS_ALIGN 7 -#define __BITOPS_WORDSIZE 64 #define __BITOPS_OR "ogr" #define __BITOPS_AND "ngr" #define __BITOPS_XOR "xgr" @@ -101,8 +97,7 @@ extern const char _sb_findmap[]; #endif /* CONFIG_64BIT */ -#define __BITOPS_WORDS(bits) (((bits)+__BITOPS_WORDSIZE-1)/__BITOPS_WORDSIZE) -#define __BITOPS_BARRIER() asm volatile("" : : : "memory") +#define __BITOPS_WORDS(bits) (((bits) + BITS_PER_LONG - 1) / BITS_PER_LONG) #ifdef CONFIG_SMP /* @@ -114,9 +109,9 @@ static inline void set_bit_cs(unsigned long nr, volatile unsigned long *ptr) addr = (unsigned long) ptr; /* calculate address for CS */ - addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3; + addr += (nr ^ (nr & (BITS_PER_LONG - 1))) >> 3; /* make OR mask */ - mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1)); + mask = 1UL << (nr & (BITS_PER_LONG - 1)); /* Do the atomic update. */ __BITOPS_LOOP(old, new, addr, mask, __BITOPS_OR); } @@ -130,9 +125,9 @@ static inline void clear_bit_cs(unsigned long nr, volatile unsigned long *ptr) addr = (unsigned long) ptr; /* calculate address for CS */ - addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3; + addr += (nr ^ (nr & (BITS_PER_LONG - 1))) >> 3; /* make AND mask */ - mask = ~(1UL << (nr & (__BITOPS_WORDSIZE - 1))); + mask = ~(1UL << (nr & (BITS_PER_LONG - 1))); /* Do the atomic update. */ __BITOPS_LOOP(old, new, addr, mask, __BITOPS_AND); } @@ -146,9 +141,9 @@ static inline void change_bit_cs(unsigned long nr, volatile unsigned long *ptr) addr = (unsigned long) ptr; /* calculate address for CS */ - addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3; + addr += (nr ^ (nr & (BITS_PER_LONG - 1))) >> 3; /* make XOR mask */ - mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1)); + mask = 1UL << (nr & (BITS_PER_LONG - 1)); /* Do the atomic update. */ __BITOPS_LOOP(old, new, addr, mask, __BITOPS_XOR); } @@ -163,12 +158,12 @@ test_and_set_bit_cs(unsigned long nr, volatile unsigned long *ptr) addr = (unsigned long) ptr; /* calculate address for CS */ - addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3; + addr += (nr ^ (nr & (BITS_PER_LONG - 1))) >> 3; /* make OR/test mask */ - mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1)); + mask = 1UL << (nr & (BITS_PER_LONG - 1)); /* Do the atomic update. */ __BITOPS_LOOP(old, new, addr, mask, __BITOPS_OR); - __BITOPS_BARRIER(); + barrier(); return (old & mask) != 0; } @@ -182,12 +177,12 @@ test_and_clear_bit_cs(unsigned long nr, volatile unsigned long *ptr) addr = (unsigned long) ptr; /* calculate address for CS */ - addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3; + addr += (nr ^ (nr & (BITS_PER_LONG - 1))) >> 3; /* make AND/test mask */ - mask = ~(1UL << (nr & (__BITOPS_WORDSIZE - 1))); + mask = ~(1UL << (nr & (BITS_PER_LONG - 1))); /* Do the atomic update. */ __BITOPS_LOOP(old, new, addr, mask, __BITOPS_AND); - __BITOPS_BARRIER(); + barrier(); return (old ^ new) != 0; } @@ -201,12 +196,12 @@ test_and_change_bit_cs(unsigned long nr, volatile unsigned long *ptr) addr = (unsigned long) ptr; /* calculate address for CS */ - addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3; + addr += (nr ^ (nr & (BITS_PER_LONG - 1))) >> 3; /* make XOR/test mask */ - mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1)); + mask = 1UL << (nr & (BITS_PER_LONG - 1)); /* Do the atomic update. */ __BITOPS_LOOP(old, new, addr, mask, __BITOPS_XOR); - __BITOPS_BARRIER(); + barrier(); return (old & mask) != 0; } #endif /* CONFIG_SMP */ @@ -218,7 +213,7 @@ static inline void __set_bit(unsigned long nr, volatile unsigned long *ptr) { unsigned long addr; - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); + addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3); asm volatile( " oc %O0(1,%R0),%1" : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc" ); @@ -229,7 +224,7 @@ __constant_set_bit(const unsigned long nr, volatile unsigned long *ptr) { unsigned long addr; - addr = ((unsigned long) ptr) + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); + addr = ((unsigned long) ptr) + ((nr ^ (BITS_PER_LONG - 8)) >> 3); *(unsigned char *) addr |= 1 << (nr & 7); } @@ -246,7 +241,7 @@ __clear_bit(unsigned long nr, volatile unsigned long *ptr) { unsigned long addr; - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); + addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3); asm volatile( " nc %O0(1,%R0),%1" : "=Q" (*(char *) addr) : "Q" (_ni_bitmap[nr & 7]) : "cc" ); @@ -257,7 +252,7 @@ __constant_clear_bit(const unsigned long nr, volatile unsigned long *ptr) { unsigned long addr; - addr = ((unsigned long) ptr) + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); + addr = ((unsigned long) ptr) + ((nr ^ (BITS_PER_LONG - 8)) >> 3); *(unsigned char *) addr &= ~(1 << (nr & 7)); } @@ -273,7 +268,7 @@ static inline void __change_bit(unsigned long nr, volatile unsigned long *ptr) { unsigned long addr; - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); + addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3); asm volatile( " xc %O0(1,%R0),%1" : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc" ); @@ -284,7 +279,7 @@ __constant_change_bit(const unsigned long nr, volatile unsigned long *ptr) { unsigned long addr; - addr = ((unsigned long) ptr) + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); + addr = ((unsigned long) ptr) + ((nr ^ (BITS_PER_LONG - 8)) >> 3); *(unsigned char *) addr ^= 1 << (nr & 7); } @@ -302,7 +297,7 @@ test_and_set_bit_simple(unsigned long nr, volatile unsigned long *ptr) unsigned long addr; unsigned char ch; - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); + addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3); ch = *(unsigned char *) addr; asm volatile( " oc %O0(1,%R0),%1" @@ -321,7 +316,7 @@ test_and_clear_bit_simple(unsigned long nr, volatile unsigned long *ptr) unsigned long addr; unsigned char ch; - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); + addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3); ch = *(unsigned char *) addr; asm volatile( " nc %O0(1,%R0),%1" @@ -340,7 +335,7 @@ test_and_change_bit_simple(unsigned long nr, volatile unsigned long *ptr) unsigned long addr; unsigned char ch; - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); + addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3); ch = *(unsigned char *) addr; asm volatile( " xc %O0(1,%R0),%1" @@ -376,7 +371,7 @@ static inline int __test_bit(unsigned long nr, const volatile unsigned long *ptr unsigned long addr; unsigned char ch; - addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3); + addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3); ch = *(volatile unsigned char *) addr; return (ch >> (nr & 7)) & 1; } @@ -384,7 +379,7 @@ static inline int __test_bit(unsigned long nr, const volatile unsigned long *ptr static inline int __constant_test_bit(unsigned long nr, const volatile unsigned long *addr) { return (((volatile char *) addr) - [(nr^(__BITOPS_WORDSIZE-8))>>3] & (1<<(nr&7))) != 0; + [(nr^(BITS_PER_LONG-8))>>3] & (1<<(nr&7))) != 0; } #define test_bit(nr,addr) \ @@ -693,18 +688,18 @@ static inline int find_next_bit_left(const unsigned long *addr, if (offset >= size) return size; - bit = offset & (__BITOPS_WORDSIZE - 1); + bit = offset & (BITS_PER_LONG - 1); offset -= bit; size -= offset; - p = addr + offset / __BITOPS_WORDSIZE; + p = addr + offset / BITS_PER_LONG; if (bit) { set = __flo_word(0, *p & (~0UL << bit)); if (set >= size) return size + offset; - if (set < __BITOPS_WORDSIZE) + if (set < BITS_PER_LONG) return set + offset; - offset += __BITOPS_WORDSIZE; - size -= __BITOPS_WORDSIZE; + offset += BITS_PER_LONG; + size -= BITS_PER_LONG; p++; } return offset + find_first_bit_left(p, size); @@ -736,22 +731,22 @@ static inline int find_next_zero_bit (const unsigned long * addr, if (offset >= size) return size; - bit = offset & (__BITOPS_WORDSIZE - 1); + bit = offset & (BITS_PER_LONG - 1); offset -= bit; size -= offset; - p = addr + offset / __BITOPS_WORDSIZE; + p = addr + offset / BITS_PER_LONG; if (bit) { /* - * __ffz_word returns __BITOPS_WORDSIZE + * __ffz_word returns BITS_PER_LONG * if no zero bit is present in the word. */ set = __ffz_word(bit, *p >> bit); if (set >= size) return size + offset; - if (set < __BITOPS_WORDSIZE) + if (set < BITS_PER_LONG) return set + offset; - offset += __BITOPS_WORDSIZE; - size -= __BITOPS_WORDSIZE; + offset += BITS_PER_LONG; + size -= BITS_PER_LONG; p++; } return offset + find_first_zero_bit(p, size); @@ -773,22 +768,22 @@ static inline int find_next_bit (const unsigned long * addr, if (offset >= size) return size; - bit = offset & (__BITOPS_WORDSIZE - 1); + bit = offset & (BITS_PER_LONG - 1); offset -= bit; size -= offset; - p = addr + offset / __BITOPS_WORDSIZE; + p = addr + offset / BITS_PER_LONG; if (bit) { /* - * __ffs_word returns __BITOPS_WORDSIZE + * __ffs_word returns BITS_PER_LONG * if no one bit is present in the word. */ set = __ffs_word(0, *p & (~0UL << bit)); if (set >= size) return size + offset; - if (set < __BITOPS_WORDSIZE) + if (set < BITS_PER_LONG) return set + offset; - offset += __BITOPS_WORDSIZE; - size -= __BITOPS_WORDSIZE; + offset += BITS_PER_LONG; + size -= BITS_PER_LONG; p++; } return offset + find_first_bit(p, size); @@ -843,22 +838,22 @@ static inline int find_next_zero_bit_le(void *vaddr, unsigned long size, if (offset >= size) return size; - bit = offset & (__BITOPS_WORDSIZE - 1); + bit = offset & (BITS_PER_LONG - 1); offset -= bit; size -= offset; - p = addr + offset / __BITOPS_WORDSIZE; + p = addr + offset / BITS_PER_LONG; if (bit) { /* - * s390 version of ffz returns __BITOPS_WORDSIZE + * s390 version of ffz returns BITS_PER_LONG * if no zero bit is present in the word. */ set = __ffz_word(bit, __load_ulong_le(p, 0) >> bit); if (set >= size) return size + offset; - if (set < __BITOPS_WORDSIZE) + if (set < BITS_PER_LONG) return set + offset; - offset += __BITOPS_WORDSIZE; - size -= __BITOPS_WORDSIZE; + offset += BITS_PER_LONG; + size -= BITS_PER_LONG; p++; } return offset + find_first_zero_bit_le(p, size); @@ -885,22 +880,22 @@ static inline int find_next_bit_le(void *vaddr, unsigned long size, if (offset >= size) return size; - bit = offset & (__BITOPS_WORDSIZE - 1); + bit = offset & (BITS_PER_LONG - 1); offset -= bit; size -= offset; - p = addr + offset / __BITOPS_WORDSIZE; + p = addr + offset / BITS_PER_LONG; if (bit) { /* - * s390 version of ffz returns __BITOPS_WORDSIZE + * s390 version of ffz returns BITS_PER_LONG * if no zero bit is present in the word. */ set = __ffs_word(0, __load_ulong_le(p, 0) & (~0UL << bit)); if (set >= size) return size + offset; - if (set < __BITOPS_WORDSIZE) + if (set < BITS_PER_LONG) return set + offset; - offset += __BITOPS_WORDSIZE; - size -= __BITOPS_WORDSIZE; + offset += BITS_PER_LONG; + size -= BITS_PER_LONG; p++; } return offset + find_first_bit_le(p, size); diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index e606161..f201af8 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -220,7 +220,8 @@ extern void ccw_device_get_id(struct ccw_device *, struct ccw_dev_id *); #define to_ccwdrv(n) container_of(n, struct ccw_driver, driver) extern struct ccw_device *ccw_device_probe_console(void); -extern int ccw_device_force_console(void); +extern void ccw_device_wait_idle(struct ccw_device *); +extern int ccw_device_force_console(struct ccw_device *); int ccw_device_siosl(struct ccw_device *); diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h index ad2b924..ffb8989 100644 --- a/arch/s390/include/asm/cio.h +++ b/arch/s390/include/asm/cio.h @@ -296,8 +296,6 @@ static inline int ccw_dev_id_is_equal(struct ccw_dev_id *dev_id1, return 0; } -extern void wait_cons_dev(void); - extern void css_schedule_reprobe(void); extern void reipl_ccw_dev(struct ccw_dev_id *id); diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h index f8c6df6..c1e7c64 100644 --- a/arch/s390/include/asm/compat.h +++ b/arch/s390/include/asm/compat.h @@ -70,6 +70,22 @@ typedef u32 compat_ulong_t; typedef u64 compat_u64; typedef u32 compat_uptr_t; +typedef struct { + u32 mask; + u32 addr; +} __aligned(8) psw_compat_t; + +typedef struct { + psw_compat_t psw; + u32 gprs[NUM_GPRS]; + u32 acrs[NUM_ACRS]; + u32 orig_gpr2; +} s390_compat_regs; + +typedef struct { + u32 gprs_high[NUM_GPRS]; +} s390_compat_regs_high; + struct compat_timespec { compat_time_t tv_sec; s32 tv_nsec; @@ -124,18 +140,33 @@ struct compat_flock64 { }; struct compat_statfs { - s32 f_type; - s32 f_bsize; - s32 f_blocks; - s32 f_bfree; - s32 f_bavail; - s32 f_files; - s32 f_ffree; + u32 f_type; + u32 f_bsize; + u32 f_blocks; + u32 f_bfree; + u32 f_bavail; + u32 f_files; + u32 f_ffree; + compat_fsid_t f_fsid; + u32 f_namelen; + u32 f_frsize; + u32 f_flags; + u32 f_spare[4]; +}; + +struct compat_statfs64 { + u32 f_type; + u32 f_bsize; + u64 f_blocks; + u64 f_bfree; + u64 f_bavail; + u64 f_files; + u64 f_ffree; compat_fsid_t f_fsid; - s32 f_namelen; - s32 f_frsize; - s32 f_flags; - s32 f_spare[5]; + u32 f_namelen; + u32 f_frsize; + u32 f_flags; + u32 f_spare[4]; }; #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff @@ -248,8 +279,6 @@ static inline int is_compat_task(void) return is_32bit_task(); } -#endif - static inline void __user *arch_compat_alloc_user_space(long len) { unsigned long stack; @@ -260,6 +289,8 @@ static inline void __user *arch_compat_alloc_user_space(long len) return (void __user *) (stack - len); } +#endif + struct compat_ipc64_perm { compat_key_t key; __compat_uid32_t uid; diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h index 1bfdf24..78f4f87 100644 --- a/arch/s390/include/asm/elf.h +++ b/arch/s390/include/asm/elf.h @@ -119,6 +119,8 @@ */ #include <asm/ptrace.h> +#include <asm/compat.h> +#include <asm/syscall.h> #include <asm/user.h> typedef s390_fp_regs elf_fpregset_t; @@ -180,18 +182,31 @@ extern unsigned long elf_hwcap; extern char elf_platform[]; #define ELF_PLATFORM (elf_platform) -#ifdef CONFIG_64BIT +#ifndef CONFIG_COMPAT +#define SET_PERSONALITY(ex) \ +do { \ + set_personality(PER_LINUX | \ + (current->personality & (~PER_MASK))); \ + current_thread_info()->sys_call_table = \ + (unsigned long) &sys_call_table; \ +} while (0) +#else /* CONFIG_COMPAT */ #define SET_PERSONALITY(ex) \ do { \ if (personality(current->personality) != PER_LINUX32) \ set_personality(PER_LINUX | \ (current->personality & ~PER_MASK)); \ - if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ + if ((ex).e_ident[EI_CLASS] == ELFCLASS32) { \ set_thread_flag(TIF_31BIT); \ - else \ + current_thread_info()->sys_call_table = \ + (unsigned long) &sys_call_table_emu; \ + } else { \ clear_thread_flag(TIF_31BIT); \ + current_thread_info()->sys_call_table = \ + (unsigned long) &sys_call_table; \ + } \ } while (0) -#endif /* CONFIG_64BIT */ +#endif /* CONFIG_COMPAT */ #define STACK_RND_MASK 0x7ffUL diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h index 593753e..bd90359 100644 --- a/arch/s390/include/asm/hugetlb.h +++ b/arch/s390/include/asm/hugetlb.h @@ -114,7 +114,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, #define huge_ptep_set_wrprotect(__mm, __addr, __ptep) \ ({ \ pte_t __pte = huge_ptep_get(__ptep); \ - if (pte_write(__pte)) { \ + if (huge_pte_write(__pte)) { \ huge_ptep_invalidate(__mm, __addr, __ptep); \ set_huge_pte_at(__mm, __addr, __ptep, \ huge_pte_wrprotect(__pte)); \ @@ -127,4 +127,58 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, huge_ptep_invalidate(vma->vm_mm, address, ptep); } +static inline pte_t mk_huge_pte(struct page *page, pgprot_t pgprot) +{ + pte_t pte; + pmd_t pmd; + + pmd = mk_pmd_phys(page_to_phys(page), pgprot); + pte_val(pte) = pmd_val(pmd); + return pte; +} + +static inline int huge_pte_write(pte_t pte) +{ + pmd_t pmd; + + pmd_val(pmd) = pte_val(pte); + return pmd_write(pmd); +} + +static inline int huge_pte_dirty(pte_t pte) +{ + /* No dirty bit in the segment table entry. */ + return 0; +} + +static inline pte_t huge_pte_mkwrite(pte_t pte) +{ + pmd_t pmd; + + pmd_val(pmd) = pte_val(pte); + pte_val(pte) = pmd_val(pmd_mkwrite(pmd)); + return pte; +} + +static inline pte_t huge_pte_mkdirty(pte_t pte) +{ + /* No dirty bit in the segment table entry. */ + return pte; +} + +static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot) +{ + pmd_t pmd; + + pmd_val(pmd) = pte_val(pte); + pte_val(pte) = pmd_val(pmd_modify(pmd, newprot)); + return pte; +} + +static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t *ptep) +{ + pmd_clear((pmd_t *) ptep); +} + #endif /* _ASM_S390_HUGETLB_H */ diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 05333b7..6c18012 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -140,6 +140,7 @@ static inline bool zdev_enabled(struct zpci_dev *zdev) struct zpci_dev *zpci_alloc_device(void); int zpci_create_device(struct zpci_dev *); int zpci_enable_device(struct zpci_dev *); +int zpci_disable_device(struct zpci_dev *); void zpci_stop_device(struct zpci_dev *); void zpci_free_device(struct zpci_dev *); int zpci_scan_device(struct zpci_dev *); diff --git a/arch/s390/include/asm/pci_debug.h b/arch/s390/include/asm/pci_debug.h index 6bbec42..1ca5d10 100644 --- a/arch/s390/include/asm/pci_debug.h +++ b/arch/s390/include/asm/pci_debug.h @@ -7,14 +7,11 @@ extern debug_info_t *pci_debug_msg_id; extern debug_info_t *pci_debug_err_id; #ifdef CONFIG_PCI_DEBUG -#define zpci_dbg(fmt, args...) \ - do { \ - if (pci_debug_msg_id->level >= 2) \ - debug_sprintf_event(pci_debug_msg_id, 2, fmt , ## args);\ - } while (0) +#define zpci_dbg(imp, fmt, args...) \ + debug_sprintf_event(pci_debug_msg_id, imp, fmt, ##args) #else /* !CONFIG_PCI_DEBUG */ -#define zpci_dbg(fmt, args...) do { } while (0) +#define zpci_dbg(imp, fmt, args...) do { } while (0) #endif #define zpci_err(text...) \ diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h index 1486a98..e6a2bdd 100644 --- a/arch/s390/include/asm/pci_insn.h +++ b/arch/s390/include/asm/pci_insn.h @@ -1,10 +1,6 @@ #ifndef _ASM_S390_PCI_INSN_H #define _ASM_S390_PCI_INSN_H -#include <linux/delay.h> - -#define ZPCI_INSN_BUSY_DELAY 1 /* 1 microsecond */ - /* Load/Store status codes */ #define ZPCI_PCI_ST_FUNC_NOT_ENABLED 4 #define ZPCI_PCI_ST_FUNC_IN_ERR 8 @@ -82,199 +78,12 @@ struct zpci_fib { u64 reserved7; } __packed; -/* Modify PCI Function Controls */ -static inline u8 __mpcifc(u64 req, struct zpci_fib *fib, u8 *status) -{ - u8 cc; - - asm volatile ( - " .insn rxy,0xe300000000d0,%[req],%[fib]\n" - " ipm %[cc]\n" - " srl %[cc],28\n" - : [cc] "=d" (cc), [req] "+d" (req), [fib] "+Q" (*fib) - : : "cc"); - *status = req >> 24 & 0xff; - return cc; -} - -static inline int mpcifc_instr(u64 req, struct zpci_fib *fib) -{ - u8 cc, status; - - do { - cc = __mpcifc(req, fib, &status); - if (cc == 2) - msleep(ZPCI_INSN_BUSY_DELAY); - } while (cc == 2); - - if (cc) - printk_once(KERN_ERR "%s: error cc: %d status: %d\n", - __func__, cc, status); - return (cc) ? -EIO : 0; -} - -/* Refresh PCI Translations */ -static inline u8 __rpcit(u64 fn, u64 addr, u64 range, u8 *status) -{ - register u64 __addr asm("2") = addr; - register u64 __range asm("3") = range; - u8 cc; - - asm volatile ( - " .insn rre,0xb9d30000,%[fn],%[addr]\n" - " ipm %[cc]\n" - " srl %[cc],28\n" - : [cc] "=d" (cc), [fn] "+d" (fn) - : [addr] "d" (__addr), "d" (__range) - : "cc"); - *status = fn >> 24 & 0xff; - return cc; -} - -static inline int rpcit_instr(u64 fn, u64 addr, u64 range) -{ - u8 cc, status; - - do { - cc = __rpcit(fn, addr, range, &status); - if (cc == 2) - udelay(ZPCI_INSN_BUSY_DELAY); - } while (cc == 2); - - if (cc) - printk_once(KERN_ERR "%s: error cc: %d status: %d dma_addr: %Lx size: %Lx\n", - __func__, cc, status, addr, range); - return (cc) ? -EIO : 0; -} - -/* Store PCI function controls */ -static inline u8 __stpcifc(u32 handle, u8 space, struct zpci_fib *fib, u8 *status) -{ - u64 fn = (u64) handle << 32 | space << 16; - u8 cc; - - asm volatile ( - " .insn rxy,0xe300000000d4,%[fn],%[fib]\n" - " ipm %[cc]\n" - " srl %[cc],28\n" - : [cc] "=d" (cc), [fn] "+d" (fn), [fib] "=m" (*fib) - : : "cc"); - *status = fn >> 24 & 0xff; - return cc; -} - -/* Set Interruption Controls */ -static inline void sic_instr(u16 ctl, char *unused, u8 isc) -{ - asm volatile ( - " .insn rsy,0xeb00000000d1,%[ctl],%[isc],%[u]\n" - : : [ctl] "d" (ctl), [isc] "d" (isc << 27), [u] "Q" (*unused)); -} - -/* PCI Load */ -static inline u8 __pcilg(u64 *data, u64 req, u64 offset, u8 *status) -{ - register u64 __req asm("2") = req; - register u64 __offset asm("3") = offset; - u64 __data; - u8 cc; - - asm volatile ( - " .insn rre,0xb9d20000,%[data],%[req]\n" - " ipm %[cc]\n" - " srl %[cc],28\n" - : [cc] "=d" (cc), [data] "=d" (__data), [req] "+d" (__req) - : "d" (__offset) - : "cc"); - *status = __req >> 24 & 0xff; - *data = __data; - return cc; -} - -static inline int pcilg_instr(u64 *data, u64 req, u64 offset) -{ - u8 cc, status; - - do { - cc = __pcilg(data, req, offset, &status); - if (cc == 2) - udelay(ZPCI_INSN_BUSY_DELAY); - } while (cc == 2); - - if (cc) { - printk_once(KERN_ERR "%s: error cc: %d status: %d req: %Lx offset: %Lx\n", - __func__, cc, status, req, offset); - /* TODO: on IO errors set data to 0xff... - * here or in users of pcilg (le conversion)? - */ - } - return (cc) ? -EIO : 0; -} - -/* PCI Store */ -static inline u8 __pcistg(u64 data, u64 req, u64 offset, u8 *status) -{ - register u64 __req asm("2") = req; - register u64 __offset asm("3") = offset; - u8 cc; - - asm volatile ( - " .insn rre,0xb9d00000,%[data],%[req]\n" - " ipm %[cc]\n" - " srl %[cc],28\n" - : [cc] "=d" (cc), [req] "+d" (__req) - : "d" (__offset), [data] "d" (data) - : "cc"); - *status = __req >> 24 & 0xff; - return cc; -} - -static inline int pcistg_instr(u64 data, u64 req, u64 offset) -{ - u8 cc, status; - - do { - cc = __pcistg(data, req, offset, &status); - if (cc == 2) - udelay(ZPCI_INSN_BUSY_DELAY); - } while (cc == 2); - - if (cc) - printk_once(KERN_ERR "%s: error cc: %d status: %d req: %Lx offset: %Lx\n", - __func__, cc, status, req, offset); - return (cc) ? -EIO : 0; -} - -/* PCI Store Block */ -static inline u8 __pcistb(const u64 *data, u64 req, u64 offset, u8 *status) -{ - u8 cc; - - asm volatile ( - " .insn rsy,0xeb00000000d0,%[req],%[offset],%[data]\n" - " ipm %[cc]\n" - " srl %[cc],28\n" - : [cc] "=d" (cc), [req] "+d" (req) - : [offset] "d" (offset), [data] "Q" (*data) - : "cc"); - *status = req >> 24 & 0xff; - return cc; -} - -static inline int pcistb_instr(const u64 *data, u64 req, u64 offset) -{ - u8 cc, status; - - do { - cc = __pcistb(data, req, offset, &status); - if (cc == 2) - udelay(ZPCI_INSN_BUSY_DELAY); - } while (cc == 2); - if (cc) - printk_once(KERN_ERR "%s: error cc: %d status: %d req: %Lx offset: %Lx\n", - __func__, cc, status, req, offset); - return (cc) ? -EIO : 0; -} +int s390pci_mod_fc(u64 req, struct zpci_fib *fib); +int s390pci_refresh_trans(u64 fn, u64 addr, u64 range); +int s390pci_load(u64 *data, u64 req, u64 offset); +int s390pci_store(u64 data, u64 req, u64 offset); +int s390pci_store_block(const u64 *data, u64 req, u64 offset); +void set_irq_ctrl(u16 ctl, char *unused, u8 isc); #endif diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h index 5fd81f3..83a9caa 100644 --- a/arch/s390/include/asm/pci_io.h +++ b/arch/s390/include/asm/pci_io.h @@ -36,7 +36,7 @@ static inline RETTYPE zpci_read_##RETTYPE(const volatile void __iomem *addr) \ u64 data; \ int rc; \ \ - rc = pcilg_instr(&data, req, ZPCI_OFFSET(addr)); \ + rc = s390pci_load(&data, req, ZPCI_OFFSET(addr)); \ if (rc) \ data = -1ULL; \ return (RETTYPE) data; \ @@ -50,7 +50,7 @@ static inline void zpci_write_##VALTYPE(VALTYPE val, \ u64 req = ZPCI_CREATE_REQ(entry->fh, entry->bar, LENGTH); \ u64 data = (VALTYPE) val; \ \ - pcistg_instr(data, req, ZPCI_OFFSET(addr)); \ + s390pci_store(data, req, ZPCI_OFFSET(addr)); \ } zpci_read(8, u64) @@ -83,15 +83,18 @@ static inline int zpci_write_single(u64 req, const u64 *data, u64 offset, u8 len val = 0; /* let FW report error */ break; } - return pcistg_instr(val, req, offset); + return s390pci_store(val, req, offset); } static inline int zpci_read_single(u64 req, u64 *dst, u64 offset, u8 len) { u64 data; - u8 cc; + int cc; + + cc = s390pci_load(&data, req, offset); + if (cc) + goto out; - cc = pcilg_instr(&data, req, offset); switch (len) { case 1: *((u8 *) dst) = (u8) data; @@ -106,12 +109,13 @@ static inline int zpci_read_single(u64 req, u64 *dst, u64 offset, u8 len) *((u64 *) dst) = (u64) data; break; } +out: return cc; } static inline int zpci_write_block(u64 req, const u64 *data, u64 offset) { - return pcistb_instr(data, req, offset); + return s390pci_store_block(data, req, offset); } static inline u8 zpci_get_max_write_size(u64 src, u64 dst, int len, int max) diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 3cb47cf..b462291 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -424,6 +424,13 @@ extern unsigned long MODULES_END; #define __S110 PAGE_RW #define __S111 PAGE_RW +/* + * Segment entry (large page) protection definitions. + */ +#define SEGMENT_NONE __pgprot(_HPAGE_TYPE_NONE) +#define SEGMENT_RO __pgprot(_HPAGE_TYPE_RO) +#define SEGMENT_RW __pgprot(_HPAGE_TYPE_RW) + static inline int mm_exclusive(struct mm_struct *mm) { return likely(mm == current->active_mm && @@ -764,6 +771,8 @@ void gmap_disable(struct gmap *gmap); int gmap_map_segment(struct gmap *gmap, unsigned long from, unsigned long to, unsigned long length); int gmap_unmap_segment(struct gmap *gmap, unsigned long to, unsigned long len); +unsigned long __gmap_translate(unsigned long address, struct gmap *); +unsigned long gmap_translate(unsigned long address, struct gmap *); unsigned long __gmap_fault(unsigned long address, struct gmap *); unsigned long gmap_fault(unsigned long address, struct gmap *); void gmap_discard(unsigned long from, unsigned long to, struct gmap *); @@ -912,26 +921,6 @@ static inline pte_t pte_mkspecial(pte_t pte) #ifdef CONFIG_HUGETLB_PAGE static inline pte_t pte_mkhuge(pte_t pte) { - /* - * PROT_NONE needs to be remapped from the pte type to the ste type. - * The HW invalid bit is also different for pte and ste. The pte - * invalid bit happens to be the same as the ste _SEGMENT_ENTRY_LARGE - * bit, so we don't have to clear it. - */ - if (pte_val(pte) & _PAGE_INVALID) { - if (pte_val(pte) & _PAGE_SWT) - pte_val(pte) |= _HPAGE_TYPE_NONE; - pte_val(pte) |= _SEGMENT_ENTRY_INV; - } - /* - * Clear SW pte bits, there are no SW bits in a segment table entry. - */ - pte_val(pte) &= ~(_PAGE_SWT | _PAGE_SWX | _PAGE_SWC | - _PAGE_SWR | _PAGE_SWW); - /* - * Also set the change-override bit because we don't need dirty bit - * tracking for hugetlbfs pages. - */ pte_val(pte) |= (_SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_CO); return pte; } @@ -1276,31 +1265,7 @@ static inline void __pmd_idte(unsigned long address, pmd_t *pmdp) } } -#ifdef CONFIG_TRANSPARENT_HUGEPAGE - -#define SEGMENT_NONE __pgprot(_HPAGE_TYPE_NONE) -#define SEGMENT_RO __pgprot(_HPAGE_TYPE_RO) -#define SEGMENT_RW __pgprot(_HPAGE_TYPE_RW) - -#define __HAVE_ARCH_PGTABLE_DEPOSIT -extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pgtable_t pgtable); - -#define __HAVE_ARCH_PGTABLE_WITHDRAW -extern pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm); - -static inline int pmd_trans_splitting(pmd_t pmd) -{ - return pmd_val(pmd) & _SEGMENT_ENTRY_SPLIT; -} - -static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, - pmd_t *pmdp, pmd_t entry) -{ - if (!(pmd_val(entry) & _SEGMENT_ENTRY_INV) && MACHINE_HAS_EDAT1) - pmd_val(entry) |= _SEGMENT_ENTRY_CO; - *pmdp = entry; -} - +#if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLB_PAGE) static inline unsigned long massage_pgprot_pmd(pgprot_t pgprot) { /* @@ -1321,10 +1286,11 @@ static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot) return pmd; } -static inline pmd_t pmd_mkhuge(pmd_t pmd) +static inline pmd_t mk_pmd_phys(unsigned long physpage, pgprot_t pgprot) { - pmd_val(pmd) |= _SEGMENT_ENTRY_LARGE; - return pmd; + pmd_t __pmd; + pmd_val(__pmd) = physpage + massage_pgprot_pmd(pgprot); + return __pmd; } static inline pmd_t pmd_mkwrite(pmd_t pmd) @@ -1334,6 +1300,34 @@ static inline pmd_t pmd_mkwrite(pmd_t pmd) pmd_val(pmd) &= ~_SEGMENT_ENTRY_RO; return pmd; } +#endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLB_PAGE */ + +#ifdef CONFIG_TRANSPARENT_HUGEPAGE + +#define __HAVE_ARCH_PGTABLE_DEPOSIT +extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pgtable_t pgtable); + +#define __HAVE_ARCH_PGTABLE_WITHDRAW +extern pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm); + +static inline int pmd_trans_splitting(pmd_t pmd) +{ + return pmd_val(pmd) & _SEGMENT_ENTRY_SPLIT; +} + +static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, + pmd_t *pmdp, pmd_t entry) +{ + if (!(pmd_val(entry) & _SEGMENT_ENTRY_INV) && MACHINE_HAS_EDAT1) + pmd_val(entry) |= _SEGMENT_ENTRY_CO; + *pmdp = entry; +} + +static inline pmd_t pmd_mkhuge(pmd_t pmd) +{ + pmd_val(pmd) |= _SEGMENT_ENTRY_LARGE; + return pmd; +} static inline pmd_t pmd_wrprotect(pmd_t pmd) { @@ -1430,13 +1424,6 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm, } } -static inline pmd_t mk_pmd_phys(unsigned long physpage, pgprot_t pgprot) -{ - pmd_t __pmd; - pmd_val(__pmd) = physpage + massage_pgprot_pmd(pgprot); - return __pmd; -} - #define pfn_pmd(pfn, pgprot) mk_pmd_phys(__pa((pfn) << PAGE_SHIFT), (pgprot)) #define mk_pmd(page, pgprot) pfn_pmd(page_to_pfn(page), (pgprot)) diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 94e749c..6b49987 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -161,7 +161,8 @@ extern unsigned long thread_saved_pc(struct task_struct *t); extern void show_code(struct pt_regs *regs); extern void print_fn_code(unsigned char *code, unsigned long len); -extern int insn_to_mnemonic(unsigned char *instruction, char buf[8]); +extern int insn_to_mnemonic(unsigned char *instruction, char *buf, + unsigned int len); unsigned long get_wchan(struct task_struct *p); #define task_pt_regs(tsk) ((struct pt_regs *) \ diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h index 3ee5da3..559512a 100644 --- a/arch/s390/include/asm/ptrace.h +++ b/arch/s390/include/asm/ptrace.h @@ -9,9 +9,7 @@ #include <uapi/asm/ptrace.h> #ifndef __ASSEMBLY__ -#ifndef __s390x__ -#else /* __s390x__ */ -#endif /* __s390x__ */ + extern long psw_kernel_bits; extern long psw_user_bits; @@ -77,8 +75,6 @@ struct per_struct_kernel { #define PER_CONTROL_SUSPENSION 0x00400000UL #define PER_CONTROL_ALTERATION 0x00200000UL -#ifdef __s390x__ -#endif /* __s390x__ */ /* * These are defined as per linux/ptrace.h, which see. */ diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h index fe7b997..cd29d2f 100644 --- a/arch/s390/include/asm/syscall.h +++ b/arch/s390/include/asm/syscall.h @@ -23,6 +23,7 @@ * type here is what we want [need] for both 32 bit and 64 bit systems. */ extern const unsigned int sys_call_table[]; +extern const unsigned int sys_call_table_emu[]; static inline long syscall_get_nr(struct task_struct *task, struct pt_regs *regs) diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index 9e2cfe0..eb5f64d 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -14,13 +14,8 @@ #define THREAD_ORDER 1 #define ASYNC_ORDER 1 #else /* CONFIG_64BIT */ -#ifndef __SMALL_STACK #define THREAD_ORDER 2 #define ASYNC_ORDER 2 -#else -#define THREAD_ORDER 1 -#define ASYNC_ORDER 1 -#endif #endif /* CONFIG_64BIT */ #define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER) @@ -41,6 +36,7 @@ struct thread_info { struct task_struct *task; /* main task structure */ struct exec_domain *exec_domain; /* execution domain */ unsigned long flags; /* low level flags */ + unsigned long sys_call_table; /* System call table address */ unsigned int cpu; /* current CPU */ int preempt_count; /* 0 => preemptable, <0 => BUG */ struct restart_block restart_block; diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index a6667a9..6518863 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -54,12 +54,4 @@ #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_CLONE -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") - #endif /* _ASM_S390_UNISTD_H_ */ diff --git a/arch/s390/include/uapi/asm/ptrace.h b/arch/s390/include/uapi/asm/ptrace.h index a5ca214..3aa9f1e 100644 --- a/arch/s390/include/uapi/asm/ptrace.h +++ b/arch/s390/include/uapi/asm/ptrace.h @@ -215,12 +215,6 @@ typedef struct unsigned long addr; } __attribute__ ((aligned(8))) psw_t; -typedef struct -{ - __u32 mask; - __u32 addr; -} __attribute__ ((aligned(8))) psw_compat_t; - #ifndef __s390x__ #define PSW_MASK_PER 0x40000000UL @@ -295,20 +289,6 @@ typedef struct unsigned long orig_gpr2; } s390_regs; -typedef struct -{ - psw_compat_t psw; - __u32 gprs[NUM_GPRS]; - __u32 acrs[NUM_ACRS]; - __u32 orig_gpr2; -} s390_compat_regs; - -typedef struct -{ - __u32 gprs_high[NUM_GPRS]; -} s390_compat_regs_high; - - /* * Now for the user space program event recording (trace) definitions. * The following structures are used only for the ptrace interface, don't diff --git a/arch/s390/include/uapi/asm/statfs.h b/arch/s390/include/uapi/asm/statfs.h index 5acca0a..a61d538 100644 --- a/arch/s390/include/uapi/asm/statfs.h +++ b/arch/s390/include/uapi/asm/statfs.h @@ -7,9 +7,6 @@ #ifndef _S390_STATFS_H #define _S390_STATFS_H -#ifndef __s390x__ -#include <asm-generic/statfs.h> -#else /* * We can't use <asm-generic/statfs.h> because in 64-bit mode * we mix ints of different sizes in our struct statfs. @@ -21,49 +18,33 @@ typedef __kernel_fsid_t fsid_t; #endif struct statfs { - int f_type; - int f_bsize; - long f_blocks; - long f_bfree; - long f_bavail; - long f_files; - long f_ffree; + unsigned int f_type; + unsigned int f_bsize; + unsigned long f_blocks; + unsigned long f_bfree; + unsigned long f_bavail; + unsigned long f_files; + unsigned long f_ffree; __kernel_fsid_t f_fsid; - int f_namelen; - int f_frsize; - int f_flags; - int f_spare[4]; + unsigned int f_namelen; + unsigned int f_frsize; + unsigned int f_flags; + unsigned int f_spare[4]; }; struct statfs64 { - int f_type; - int f_bsize; - long f_blocks; - long f_bfree; - long f_bavail; - long f_files; - long f_ffree; + unsigned int f_type; + unsigned int f_bsize; + unsigned long f_blocks; + unsigned long f_bfree; + unsigned long f_bavail; + unsigned long f_files; + unsigned long f_ffree; __kernel_fsid_t f_fsid; - int f_namelen; - int f_frsize; - int f_flags; - int f_spare[4]; + unsigned int f_namelen; + unsigned int f_frsize; + unsigned int f_flags; + unsigned int f_spare[4]; }; -struct compat_statfs64 { - __u32 f_type; - __u32 f_bsize; - __u64 f_blocks; - __u64 f_bfree; - __u64 f_bavail; - __u64 f_files; - __u64 f_ffree; - __kernel_fsid_t f_fsid; - __u32 f_namelen; - __u32 f_frsize; - __u32 f_flags; - __u32 f_spare[4]; -}; - -#endif /* __s390x__ */ #endif diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile index 2ac311e..1386fca 100644 --- a/arch/s390/kernel/Makefile +++ b/arch/s390/kernel/Makefile @@ -14,16 +14,25 @@ endif CFLAGS_smp.o := -Wno-nonnull # +# Disable tailcall optimizations for stack / callchain walking functions +# since this might generate broken code when accessing register 15 and +# passing its content to other functions. +# +CFLAGS_stacktrace.o += -fno-optimize-sibling-calls +CFLAGS_dumpstack.o += -fno-optimize-sibling-calls + +# # Pass UTS_MACHINE for user_regset definition # CFLAGS_ptrace.o += -DUTS_MACHINE='"$(UTS_MACHINE)"' CFLAGS_sysinfo.o += -Iinclude/math-emu -Iarch/s390/math-emu -w -obj-y := bitmap.o traps.o time.o process.o base.o early.o setup.o vtime.o \ - processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o \ - debug.o irq.o ipl.o dis.o diag.o mem_detect.o sclp.o vdso.o \ - sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o +obj-y := bitmap.o traps.o time.o process.o base.o early.o setup.o vtime.o +obj-y += processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o +obj-y += debug.o irq.o ipl.o dis.o diag.o mem_detect.o sclp.o vdso.o +obj-y += sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o +obj-y += dumpstack.o obj-y += $(if $(CONFIG_64BIT),entry64.o,entry.o) obj-y += $(if $(CONFIG_64BIT),reipl64.o,reipl.o) diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c index fface87..7a82f9f 100644 --- a/arch/s390/kernel/asm-offsets.c +++ b/arch/s390/kernel/asm-offsets.c @@ -35,6 +35,7 @@ int main(void) DEFINE(__TI_task, offsetof(struct thread_info, task)); DEFINE(__TI_domain, offsetof(struct thread_info, exec_domain)); DEFINE(__TI_flags, offsetof(struct thread_info, flags)); + DEFINE(__TI_sysc_table, offsetof(struct thread_info, sys_call_table)); DEFINE(__TI_cpu, offsetof(struct thread_info, cpu)); DEFINE(__TI_precount, offsetof(struct thread_info, preempt_count)); DEFINE(__TI_user_timer, offsetof(struct thread_info, user_timer)); diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c index 19f26de..8b6e4f5 100644 --- a/arch/s390/kernel/compat_linux.c +++ b/arch/s390/kernel/compat_linux.c @@ -288,51 +288,13 @@ asmlinkage long sys32_getegid16(void) return high2lowgid(from_kgid_munged(current_user_ns(), current_egid())); } -/* - * sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit emulation. - * - * This is really horribly ugly. - */ #ifdef CONFIG_SYSVIPC -asmlinkage long sys32_ipc(u32 call, int first, int second, int third, u32 ptr) +COMPAT_SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, unsigned long, second, + unsigned long, third, compat_uptr_t, ptr) { if (call >> 16) /* hack for backward compatibility */ return -EINVAL; - switch (call) { - case SEMTIMEDOP: - return compat_sys_semtimedop(first, compat_ptr(ptr), - second, compat_ptr(third)); - case SEMOP: - /* struct sembuf is the same on 32 and 64bit :)) */ - return sys_semtimedop(first, compat_ptr(ptr), - second, NULL); - case SEMGET: - return sys_semget(first, second, third); - case SEMCTL: - return compat_sys_semctl(first, second, third, - compat_ptr(ptr)); - case MSGSND: - return compat_sys_msgsnd(first, second, third, - compat_ptr(ptr)); - case MSGRCV: - return compat_sys_msgrcv(first, second, 0, third, - 0, compat_ptr(ptr)); - case MSGGET: - return sys_msgget((key_t) first, second); - case MSGCTL: - return compat_sys_msgctl(first, second, compat_ptr(ptr)); - case SHMAT: - return compat_sys_shmat(first, second, third, - 0, compat_ptr(ptr)); - case SHMDT: - return sys_shmdt(compat_ptr(ptr)); - case SHMGET: - return sys_shmget(first, (unsigned)second, third); - case SHMCTL: - return compat_sys_shmctl(first, second, compat_ptr(ptr)); - } - - return -ENOSYS; + return compat_sys_ipc(call, first, second, third, ptr, third); } #endif @@ -373,48 +335,6 @@ asmlinkage compat_ssize_t sys32_readahead(int fd, u32 offhi, u32 offlo, s32 coun return sys_readahead(fd, ((loff_t)AA(offhi) << 32) | AA(offlo), count); } -asmlinkage long sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, size_t count) -{ - mm_segment_t old_fs = get_fs(); - int ret; - off_t of; - - if (offset && get_user(of, offset)) - return -EFAULT; - - set_fs(KERNEL_DS); - ret = sys_sendfile(out_fd, in_fd, - offset ? (off_t __force __user *) &of : NULL, count); - set_fs(old_fs); - - if (offset && put_user(of, offset)) - return -EFAULT; - - return ret; -} - -asmlinkage long sys32_sendfile64(int out_fd, int in_fd, - compat_loff_t __user *offset, s32 count) -{ - mm_segment_t old_fs = get_fs(); - int ret; - loff_t lof; - - if (offset && get_user(lof, offset)) - return -EFAULT; - - set_fs(KERNEL_DS); - ret = sys_sendfile64(out_fd, in_fd, - offset ? (loff_t __force __user *) &lof : NULL, - count); - set_fs(old_fs); - - if (offset && put_user(lof, offset)) - return -EFAULT; - - return ret; -} - struct stat64_emu31 { unsigned long long st_dev; unsigned int __pad1; diff --git a/arch/s390/kernel/compat_linux.h b/arch/s390/kernel/compat_linux.h index 00d92a5..976518c 100644 --- a/arch/s390/kernel/compat_linux.h +++ b/arch/s390/kernel/compat_linux.h @@ -94,7 +94,6 @@ long sys32_getuid16(void); long sys32_geteuid16(void); long sys32_getgid16(void); long sys32_getegid16(void); -long sys32_ipc(u32 call, int first, int second, int third, u32 ptr); long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low); long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low); @@ -106,10 +105,6 @@ long sys32_pread64(unsigned int fd, char __user *ubuf, size_t count, long sys32_pwrite64(unsigned int fd, const char __user *ubuf, size_t count, u32 poshi, u32 poslo); compat_ssize_t sys32_readahead(int fd, u32 offhi, u32 offlo, s32 count); -long sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, - size_t count); -long sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, - s32 count); long sys32_stat64(const char __user * filename, struct stat64_emu31 __user * statbuf); long sys32_lstat64(const char __user * filename, struct stat64_emu31 __user * statbuf); diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c index 6de049f..c439ac9 100644 --- a/arch/s390/kernel/compat_signal.c +++ b/arch/s390/kernel/compat_signal.c @@ -362,6 +362,7 @@ static int setup_frame32(int sig, struct k_sigaction *ka, /* set extra registers only for synchronous signals */ regs->gprs[4] = regs->int_code & 127; regs->gprs[5] = regs->int_parm_long; + regs->gprs[6] = task_thread_info(current)->last_break; } /* Place signal number on stack to allow backtrace from handler. */ @@ -421,6 +422,7 @@ static int setup_rt_frame32(int sig, struct k_sigaction *ka, siginfo_t *info, regs->gprs[2] = map_signal(sig); regs->gprs[3] = (__force __u64) &frame->info; regs->gprs[4] = (__force __u64) &frame->uc; + regs->gprs[5] = task_thread_info(current)->last_break; return 0; give_sigsegv: diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 3c98c4d..17644c8 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -258,11 +258,6 @@ ENTRY(sys32_mmap2_wrapper) llgtr %r2,%r2 # struct mmap_arg_struct_emu31 * jg sys32_mmap2 # branch to system call -ENTRY(compat_sys_getrusage_wrapper) - lgfr %r2,%r2 # int - llgtr %r3,%r3 # struct rusage_emu31 * - jg compat_sys_getrusage # branch to system call - ENTRY(compat_sys_gettimeofday_wrapper) llgtr %r2,%r2 # struct timeval_emu31 * llgtr %r3,%r3 # struct timezone * @@ -393,14 +388,6 @@ ENTRY(compat_sys_sysinfo_wrapper) llgtr %r2,%r2 # struct sysinfo_emu31 * jg compat_sys_sysinfo # branch to system call -ENTRY(sys32_ipc_wrapper) - llgfr %r2,%r2 # uint - lgfr %r3,%r3 # int - lgfr %r4,%r4 # int - lgfr %r5,%r5 # int - llgfr %r6,%r6 # u32 - jg sys32_ipc # branch to system call - ENTRY(sys32_fsync_wrapper) llgfr %r2,%r2 # unsigned int jg sys_fsync # branch to system call @@ -666,13 +653,6 @@ ENTRY(sys32_capset_wrapper) llgtr %r3,%r3 # const cap_user_data_t jg sys_capset # branch to system call -ENTRY(sys32_sendfile_wrapper) - lgfr %r2,%r2 # int - lgfr %r3,%r3 # int - llgtr %r4,%r4 # __kernel_off_emu31_t * - llgfr %r5,%r5 # size_t - jg sys32_sendfile # branch to system call - #sys32_vfork_wrapper # done in vfork_glue ENTRY(sys32_truncate64_wrapper) @@ -938,13 +918,6 @@ ENTRY(sys_epoll_wait_wrapper) lgfr %r5,%r5 # int jg sys_epoll_wait # branch to system call -ENTRY(sys32_lookup_dcookie_wrapper) - sllg %r2,%r2,32 # get high word of 64bit dcookie - or %r2,%r3 # get low word of 64bit dcookie - llgtr %r3,%r4 # char * - llgfr %r4,%r5 # size_t - jg sys_lookup_dcookie - ENTRY(sys32_fadvise64_wrapper) lgfr %r2,%r2 # int sllg %r3,%r3,32 # get high word of 64bit loff_t @@ -1264,29 +1237,12 @@ ENTRY(sys_tee_wrapper) llgfr %r5,%r5 # unsigned int jg sys_tee -ENTRY(compat_sys_vmsplice_wrapper) - lgfr %r2,%r2 # int - llgtr %r3,%r3 # compat_iovec * - llgfr %r4,%r4 # unsigned int - llgfr %r5,%r5 # unsigned int - jg compat_sys_vmsplice - ENTRY(sys_getcpu_wrapper) llgtr %r2,%r2 # unsigned * llgtr %r3,%r3 # unsigned * llgtr %r4,%r4 # struct getcpu_cache * jg sys_getcpu -ENTRY(compat_sys_epoll_pwait_wrapper) - lgfr %r2,%r2 # int - llgtr %r3,%r3 # struct compat_epoll_event * - lgfr %r4,%r4 # int - lgfr %r5,%r5 # int - llgtr %r6,%r6 # compat_sigset_t * - llgf %r0,164(%r15) # compat_size_t - stg %r0,160(%r15) - jg compat_sys_epoll_pwait - ENTRY(compat_sys_utimes_wrapper) llgtr %r2,%r2 # char * llgtr %r3,%r3 # struct compat_timeval * @@ -1299,12 +1255,6 @@ ENTRY(compat_sys_utimensat_wrapper) lgfr %r5,%r5 # int jg compat_sys_utimensat -ENTRY(compat_sys_signalfd_wrapper) - lgfr %r2,%r2 # int - llgtr %r3,%r3 # compat_sigset_t * - llgfr %r4,%r4 # compat_size_t - jg compat_sys_signalfd - ENTRY(sys_eventfd_wrapper) llgfr %r2,%r2 # unsigned int jg sys_eventfd @@ -1323,13 +1273,6 @@ ENTRY(sys_timerfd_create_wrapper) lgfr %r3,%r3 # int jg sys_timerfd_create -ENTRY(compat_sys_signalfd4_wrapper) - lgfr %r2,%r2 # int - llgtr %r3,%r3 # compat_sigset_t * - llgfr %r4,%r4 # compat_size_t - lgfr %r5,%r5 # int - jg compat_sys_signalfd4 - ENTRY(sys_eventfd2_wrapper) llgfr %r2,%r2 # unsigned int lgfr %r3,%r3 # int @@ -1361,13 +1304,6 @@ ENTRY(sys32_readahead_wrapper) lgfr %r5,%r5 # s32 jg sys32_readahead # branch to system call -ENTRY(sys32_sendfile64_wrapper) - lgfr %r2,%r2 # int - lgfr %r3,%r3 # int - llgtr %r4,%r4 # compat_loff_t * - lgfr %r5,%r5 # s32 - jg sys32_sendfile64 # branch to system call - ENTRY(sys_tkill_wrapper) lgfr %r2,%r2 # pid_t lgfr %r3,%r3 # int diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c index 3ad5e95..7f4a4a8 100644 --- a/arch/s390/kernel/dis.c +++ b/arch/s390/kernel/dis.c @@ -1696,14 +1696,15 @@ static struct insn *find_insn(unsigned char *code) * insn_to_mnemonic - decode an s390 instruction * @instruction: instruction to decode * @buf: buffer to fill with mnemonic + * @len: length of buffer * * Decode the instruction at @instruction and store the corresponding - * mnemonic into @buf. + * mnemonic into @buf of length @len. * @buf is left unchanged if the instruction could not be decoded. * Returns: * %0 on success, %-ENOENT if the instruction was not found. */ -int insn_to_mnemonic(unsigned char *instruction, char buf[8]) +int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len) { struct insn *insn; @@ -1711,10 +1712,10 @@ int insn_to_mnemonic(unsigned char *instruction, char buf[8]) if (!insn) return -ENOENT; if (insn->name[0] == '\0') - snprintf(buf, 8, "%s", + snprintf(buf, len, "%s", long_insn_name[(int) insn->name[1]]); else - snprintf(buf, 8, "%.5s", insn->name); + snprintf(buf, len, "%.5s", insn->name); return 0; } EXPORT_SYMBOL_GPL(insn_to_mnemonic); diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c new file mode 100644 index 0000000..2982974 --- /dev/null +++ b/arch/s390/kernel/dumpstack.c @@ -0,0 +1,212 @@ +/* + * Stack dumping functions + * + * Copyright IBM Corp. 1999, 2013 + */ + +#include <linux/kallsyms.h> +#include <linux/hardirq.h> +#include <linux/kprobes.h> +#include <linux/utsname.h> +#include <linux/export.h> +#include <linux/kdebug.h> +#include <linux/ptrace.h> +#include <linux/module.h> +#include <linux/sched.h> +#include <asm/processor.h> +#include <asm/debug.h> +#include <asm/ipl.h> + +#ifndef CONFIG_64BIT +#define LONG "%08lx " +#define FOURLONG "%08lx %08lx %08lx %08lx\n" +static int kstack_depth_to_print = 12; +#else /* CONFIG_64BIT */ +#define LONG "%016lx " +#define FOURLONG "%016lx %016lx %016lx %016lx\n" +static int kstack_depth_to_print = 20; +#endif /* CONFIG_64BIT */ + +/* + * For show_trace we have tree different stack to consider: + * - the panic stack which is used if the kernel stack has overflown + * - the asynchronous interrupt stack (cpu related) + * - the synchronous kernel stack (process related) + * The stack trace can start at any of the three stack and can potentially + * touch all of them. The order is: panic stack, async stack, sync stack. + */ +static unsigned long +__show_trace(unsigned long sp, unsigned long low, unsigned long high) +{ + struct stack_frame *sf; + struct pt_regs *regs; + + while (1) { + sp = sp & PSW_ADDR_INSN; + if (sp < low || sp > high - sizeof(*sf)) + return sp; + sf = (struct stack_frame *) sp; + printk("([<%016lx>] ", sf->gprs[8] & PSW_ADDR_INSN); + print_symbol("%s)\n", sf->gprs[8] & PSW_ADDR_INSN); + /* Follow the backchain. */ + while (1) { + low = sp; + sp = sf->back_chain & PSW_ADDR_INSN; + if (!sp) + break; + if (sp <= low || sp > high - sizeof(*sf)) + return sp; + sf = (struct stack_frame *) sp; + printk(" [<%016lx>] ", sf->gprs[8] & PSW_ADDR_INSN); + print_symbol("%s\n", sf->gprs[8] & PSW_ADDR_INSN); + } + /* Zero backchain detected, check for interrupt frame. */ + sp = (unsigned long) (sf + 1); + if (sp <= low || sp > high - sizeof(*regs)) + return sp; + regs = (struct pt_regs *) sp; + printk(" [<%016lx>] ", regs->psw.addr & PSW_ADDR_INSN); + print_symbol("%s\n", regs->psw.addr & PSW_ADDR_INSN); + low = sp; + sp = regs->gprs[15]; + } +} + +static void show_trace(struct task_struct *task, unsigned long *stack) +{ + register unsigned long __r15 asm ("15"); + unsigned long sp; + + sp = (unsigned long) stack; + if (!sp) + sp = task ? task->thread.ksp : __r15; + printk("Call Trace:\n"); +#ifdef CONFIG_CHECK_STACK + sp = __show_trace(sp, S390_lowcore.panic_stack - 4096, + S390_lowcore.panic_stack); +#endif + sp = __show_trace(sp, S390_lowcore.async_stack - ASYNC_SIZE, + S390_lowcore.async_stack); + if (task) + __show_trace(sp, (unsigned long) task_stack_page(task), + (unsigned long) task_stack_page(task) + THREAD_SIZE); + else + __show_trace(sp, S390_lowcore.thread_info, + S390_lowcore.thread_info + THREAD_SIZE); + if (!task) + task = current; + debug_show_held_locks(task); +} + +void show_stack(struct task_struct *task, unsigned long *sp) +{ + register unsigned long *__r15 asm ("15"); + unsigned long *stack; + int i; + + if (!sp) + stack = task ? (unsigned long *) task->thread.ksp : __r15; + else + stack = sp; + + for (i = 0; i < kstack_depth_to_print; i++) { + if (((addr_t) stack & (THREAD_SIZE-1)) == 0) + break; + if ((i * sizeof(long) % 32) == 0) + printk("%s ", i == 0 ? "" : "\n"); + printk(LONG, *stack++); + } + printk("\n"); + show_trace(task, sp); +} + +static void show_last_breaking_event(struct pt_regs *regs) +{ +#ifdef CONFIG_64BIT + printk("Last Breaking-Event-Address:\n"); + printk(" [<%016lx>] ", regs->args[0] & PSW_ADDR_INSN); + print_symbol("%s\n", regs->args[0] & PSW_ADDR_INSN); +#endif +} + +static inline int mask_bits(struct pt_regs *regs, unsigned long bits) +{ + return (regs->psw.mask & bits) / ((~bits + 1) & bits); +} + +void show_registers(struct pt_regs *regs) +{ + char *mode; + + mode = user_mode(regs) ? "User" : "Krnl"; + printk("%s PSW : %p %p", + mode, (void *) regs->psw.mask, + (void *) regs->psw.addr); + print_symbol(" (%s)\n", regs->psw.addr & PSW_ADDR_INSN); + printk(" R:%x T:%x IO:%x EX:%x Key:%x M:%x W:%x " + "P:%x AS:%x CC:%x PM:%x", mask_bits(regs, PSW_MASK_PER), + mask_bits(regs, PSW_MASK_DAT), mask_bits(regs, PSW_MASK_IO), + mask_bits(regs, PSW_MASK_EXT), mask_bits(regs, PSW_MASK_KEY), + mask_bits(regs, PSW_MASK_MCHECK), mask_bits(regs, PSW_MASK_WAIT), + mask_bits(regs, PSW_MASK_PSTATE), mask_bits(regs, PSW_MASK_ASC), + mask_bits(regs, PSW_MASK_CC), mask_bits(regs, PSW_MASK_PM)); +#ifdef CONFIG_64BIT + printk(" EA:%x", mask_bits(regs, PSW_MASK_EA | PSW_MASK_BA)); +#endif + printk("\n%s GPRS: " FOURLONG, mode, + regs->gprs[0], regs->gprs[1], regs->gprs[2], regs->gprs[3]); + printk(" " FOURLONG, + regs->gprs[4], regs->gprs[5], regs->gprs[6], regs->gprs[7]); + printk(" " FOURLONG, + regs->gprs[8], regs->gprs[9], regs->gprs[10], regs->gprs[11]); + printk(" " FOURLONG, + regs->gprs[12], regs->gprs[13], regs->gprs[14], regs->gprs[15]); + show_code(regs); +} + +void show_regs(struct pt_regs *regs) +{ + show_regs_print_info(KERN_DEFAULT); + show_registers(regs); + /* Show stack backtrace if pt_regs is from kernel mode */ + if (!user_mode(regs)) + show_trace(NULL, (unsigned long *) regs->gprs[15]); + show_last_breaking_event(regs); +} + +static DEFINE_SPINLOCK(die_lock); + +void die(struct pt_regs *regs, const char *str) +{ + static int die_counter; + + oops_enter(); + lgr_info_log(); + debug_stop_all(); + console_verbose(); + spin_lock_irq(&die_lock); + bust_spinlocks(1); + printk("%s: %04x [#%d] ", str, regs->int_code & 0xffff, ++die_counter); +#ifdef CONFIG_PREEMPT + printk("PREEMPT "); +#endif +#ifdef CONFIG_SMP + printk("SMP "); +#endif +#ifdef CONFIG_DEBUG_PAGEALLOC + printk("DEBUG_PAGEALLOC"); +#endif + printk("\n"); + notify_die(DIE_OOPS, str, regs, 0, regs->int_code & 0xffff, SIGSEGV); + print_modules(); + show_regs(regs); + bust_spinlocks(0); + add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE); + spin_unlock_irq(&die_lock); + if (in_interrupt()) + panic("Fatal exception in interrupt"); + if (panic_on_oops) + panic("Fatal exception: panic_on_oops"); + oops_exit(); + do_exit(SIGSEGV); +} diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 94feff7..4d5e6f8 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -45,6 +45,7 @@ _TIF_TRACE = (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SECCOMP | \ STACK_SHIFT = PAGE_SHIFT + THREAD_ORDER STACK_SIZE = 1 << STACK_SHIFT +STACK_INIT = STACK_SIZE - STACK_FRAME_OVERHEAD - __PT_SIZE #define BASED(name) name-system_call(%r13) @@ -97,10 +98,10 @@ STACK_SIZE = 1 << STACK_SHIFT sra %r14,\shift jnz 1f CHECK_STACK 1<<\shift,\savearea + ahi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) j 2f 1: l %r15,\stack # load target stack -2: ahi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) - la %r11,STACK_FRAME_OVERHEAD(%r15) +2: la %r11,STACK_FRAME_OVERHEAD(%r15) .endm .macro ADD64 high,low,timer @@ -150,7 +151,7 @@ ENTRY(__switch_to) l %r4,__THREAD_info(%r2) # get thread_info of prev l %r5,__THREAD_info(%r3) # get thread_info of next lr %r15,%r5 - ahi %r15,STACK_SIZE # end of kernel stack of next + ahi %r15,STACK_INIT # end of kernel stack of next st %r3,__LC_CURRENT # store task struct of next st %r5,__LC_THREAD_INFO # store thread info of next st %r15,__LC_KERNEL_STACK # store end of kernel stack @@ -178,7 +179,6 @@ sysc_stm: l %r13,__LC_SVC_NEW_PSW+4 sysc_per: l %r15,__LC_KERNEL_STACK - ahi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) la %r11,STACK_FRAME_OVERHEAD(%r15) # pointer to pt_regs sysc_vtime: UPDATE_VTIME %r8,%r9,__LC_SYNC_ENTER_TIMER @@ -188,6 +188,7 @@ sysc_vtime: mvc __PT_INT_CODE(4,%r11),__LC_SVC_ILC sysc_do_svc: oi __TI_flags+3(%r12),_TIF_SYSCALL + l %r10,__TI_sysc_table(%r12) # 31 bit system call table lh %r8,__PT_INT_CODE+2(%r11) sla %r8,2 # shift and test for svc0 jnz sysc_nr_ok @@ -198,7 +199,6 @@ sysc_do_svc: lr %r8,%r1 sla %r8,2 sysc_nr_ok: - l %r10,BASED(.Lsys_call_table) # 31 bit system call table xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) st %r2,__PT_ORIG_GPR2(%r11) st %r7,STACK_FRAME_OVERHEAD(%r15) @@ -359,11 +359,11 @@ ENTRY(pgm_check_handler) tm __LC_PGM_ILC+3,0x80 # check for per exception jnz pgm_svcper # -> single stepped svc 0: CHECK_STACK STACK_SIZE,__LC_SAVE_AREA_SYNC + ahi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) j 2f 1: UPDATE_VTIME %r14,%r15,__LC_SYNC_ENTER_TIMER l %r15,__LC_KERNEL_STACK -2: ahi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) - la %r11,STACK_FRAME_OVERHEAD(%r15) +2: la %r11,STACK_FRAME_OVERHEAD(%r15) stm %r0,%r7,__PT_R0(%r11) mvc __PT_R8(32,%r11),__LC_SAVE_AREA_SYNC stm %r8,%r9,__PT_PSW(%r11) @@ -485,7 +485,6 @@ io_work: # io_work_user: l %r1,__LC_KERNEL_STACK - ahi %r1,-(STACK_FRAME_OVERHEAD + __PT_SIZE) mvc STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11) xc __SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) la %r11,STACK_FRAME_OVERHEAD(%r1) @@ -646,7 +645,6 @@ mcck_skip: tm __PT_PSW+1(%r11),0x01 # returning to user ? jno mcck_return l %r1,__LC_KERNEL_STACK # switch to kernel stack - ahi %r1,-(STACK_FRAME_OVERHEAD + __PT_SIZE) mvc STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11) xc __SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) la %r11,STACK_FRAME_OVERHEAD(%r15) @@ -674,6 +672,7 @@ mcck_panic: sra %r14,PAGE_SHIFT jz 0f l %r15,__LC_PANIC_STACK + j mcck_skip 0: ahi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) j mcck_skip @@ -714,12 +713,10 @@ ENTRY(restart_int_handler) */ stack_overflow: l %r15,__LC_PANIC_STACK # change to panic stack - ahi %r15,-__PT_SIZE # create pt_regs - stm %r0,%r7,__PT_R0(%r15) - stm %r8,%r9,__PT_PSW(%r15) + la %r11,STACK_FRAME_OVERHEAD(%r15) + stm %r0,%r7,__PT_R0(%r11) + stm %r8,%r9,__PT_PSW(%r11) mvc __PT_R8(32,%r11),0(%r14) - lr %r15,%r11 - ahi %r15,-STACK_FRAME_OVERHEAD l %r1,BASED(1f) xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) lr %r2,%r11 # pass pointer to pt_regs @@ -799,15 +796,14 @@ cleanup_system_call: mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER # set up saved register 11 l %r15,__LC_KERNEL_STACK - ahi %r15,-__PT_SIZE - st %r15,12(%r11) # r11 pt_regs pointer + la %r9,STACK_FRAME_OVERHEAD(%r15) + st %r9,12(%r11) # r11 pt_regs pointer # fill pt_regs - mvc __PT_R8(32,%r15),__LC_SAVE_AREA_SYNC - stm %r0,%r7,__PT_R0(%r15) - mvc __PT_PSW(8,%r15),__LC_SVC_OLD_PSW - mvc __PT_INT_CODE(4,%r15),__LC_SVC_ILC + mvc __PT_R8(32,%r9),__LC_SAVE_AREA_SYNC + stm %r0,%r7,__PT_R0(%r9) + mvc __PT_PSW(8,%r9),__LC_SVC_OLD_PSW + mvc __PT_INT_CODE(4,%r9),__LC_SVC_ILC # setup saved register 15 - ahi %r15,-STACK_FRAME_OVERHEAD st %r15,28(%r11) # r15 stack pointer # set new psw address and exit l %r9,BASED(cleanup_table+4) # sysc_do_svc + 0x80000000 @@ -910,7 +906,6 @@ cleanup_idle_wait: .Ltrace_enter: .long do_syscall_trace_enter .Ltrace_exit: .long do_syscall_trace_exit .Lschedule_tail: .long schedule_tail -.Lsys_call_table: .long sys_call_table .Lsysc_per: .long sysc_per + 0x80000000 #ifdef CONFIG_TRACE_IRQFLAGS .Lhardirqs_on: .long trace_hardirqs_on_caller diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h index c3a736a..aa0ab02e 100644 --- a/arch/s390/kernel/entry.h +++ b/arch/s390/kernel/entry.h @@ -7,6 +7,7 @@ #include <asm/cputime.h> extern void *restart_stack; +extern unsigned long suspend_zero_pages; void system_call(void); void pgm_check_handler(void); diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index 2e6d60c..4c17eec 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -39,6 +39,7 @@ __PT_R15 = __PT_GPRS + 120 STACK_SHIFT = PAGE_SHIFT + THREAD_ORDER STACK_SIZE = 1 << STACK_SHIFT +STACK_INIT = STACK_SIZE - STACK_FRAME_OVERHEAD - __PT_SIZE _TIF_WORK_SVC = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \ _TIF_MCCK_PENDING | _TIF_PER_TRAP ) @@ -124,10 +125,10 @@ _TIF_EXIT_SIE = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_MCCK_PENDING) srag %r14,%r14,\shift jnz 1f CHECK_STACK 1<<\shift,\savearea + aghi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) j 2f 1: lg %r15,\stack # load target stack -2: aghi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) - la %r11,STACK_FRAME_OVERHEAD(%r15) +2: la %r11,STACK_FRAME_OVERHEAD(%r15) .endm .macro UPDATE_VTIME scratch,enter_timer @@ -177,7 +178,7 @@ ENTRY(__switch_to) lg %r4,__THREAD_info(%r2) # get thread_info of prev lg %r5,__THREAD_info(%r3) # get thread_info of next lgr %r15,%r5 - aghi %r15,STACK_SIZE # end of kernel stack of next + aghi %r15,STACK_INIT # end of kernel stack of next stg %r3,__LC_CURRENT # store task struct of next stg %r5,__LC_THREAD_INFO # store thread info of next stg %r15,__LC_KERNEL_STACK # store end of kernel stack @@ -203,10 +204,8 @@ sysc_stmg: stmg %r8,%r15,__LC_SAVE_AREA_SYNC lg %r10,__LC_LAST_BREAK lg %r12,__LC_THREAD_INFO - larl %r13,system_call sysc_per: lg %r15,__LC_KERNEL_STACK - aghi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) la %r11,STACK_FRAME_OVERHEAD(%r15) # pointer to pt_regs sysc_vtime: UPDATE_VTIME %r13,__LC_SYNC_ENTER_TIMER @@ -217,6 +216,7 @@ sysc_vtime: mvc __PT_INT_CODE(4,%r11),__LC_SVC_ILC sysc_do_svc: oi __TI_flags+7(%r12),_TIF_SYSCALL + lg %r10,__TI_sysc_table(%r12) # address of system call table llgh %r8,__PT_INT_CODE+2(%r11) slag %r8,%r8,2 # shift and test for svc 0 jnz sysc_nr_ok @@ -227,13 +227,6 @@ sysc_do_svc: sth %r1,__PT_INT_CODE+2(%r11) slag %r8,%r1,2 sysc_nr_ok: - larl %r10,sys_call_table # 64 bit system call table -#ifdef CONFIG_COMPAT - tm __TI_flags+5(%r12),(_TIF_31BIT>>16) - jno sysc_noemu - larl %r10,sys_call_table_emu # 31 bit system call table -sysc_noemu: -#endif xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) stg %r2,__PT_ORIG_GPR2(%r11) stg %r7,STACK_FRAME_OVERHEAD(%r15) @@ -389,6 +382,7 @@ ENTRY(pgm_check_handler) tm __LC_PGM_ILC+3,0x80 # check for per exception jnz pgm_svcper # -> single stepped svc 0: CHECK_STACK STACK_SIZE,__LC_SAVE_AREA_SYNC + aghi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) j 2f 1: UPDATE_VTIME %r14,__LC_SYNC_ENTER_TIMER LAST_BREAK %r14 @@ -398,8 +392,7 @@ ENTRY(pgm_check_handler) tm __LC_PGM_ILC+2,0x02 # check for transaction abort jz 2f mvc __THREAD_trap_tdb(256,%r14),0(%r13) -2: aghi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) - la %r11,STACK_FRAME_OVERHEAD(%r15) +2: la %r11,STACK_FRAME_OVERHEAD(%r15) stmg %r0,%r7,__PT_R0(%r11) mvc __PT_R8(64,%r11),__LC_SAVE_AREA_SYNC stmg %r8,%r9,__PT_PSW(%r11) @@ -526,7 +519,6 @@ io_work: # io_work_user: lg %r1,__LC_KERNEL_STACK - aghi %r1,-(STACK_FRAME_OVERHEAD + __PT_SIZE) mvc STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11) xc __SF_BACKCHAIN(8,%r1),__SF_BACKCHAIN(%r1) la %r11,STACK_FRAME_OVERHEAD(%r1) @@ -688,7 +680,6 @@ mcck_skip: tm __PT_PSW+1(%r11),0x01 # returning to user ? jno mcck_return lg %r1,__LC_KERNEL_STACK # switch to kernel stack - aghi %r1,-(STACK_FRAME_OVERHEAD + __PT_SIZE) mvc STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11) xc __SF_BACKCHAIN(8,%r1),__SF_BACKCHAIN(%r1) la %r11,STACK_FRAME_OVERHEAD(%r1) @@ -755,14 +746,12 @@ ENTRY(restart_int_handler) * Setup a pt_regs so that show_trace can provide a good call trace. */ stack_overflow: - lg %r11,__LC_PANIC_STACK # change to panic stack - aghi %r11,-__PT_SIZE # create pt_regs + lg %r15,__LC_PANIC_STACK # change to panic stack + la %r11,STACK_FRAME_OVERHEAD(%r15) stmg %r0,%r7,__PT_R0(%r11) stmg %r8,%r9,__PT_PSW(%r11) mvc __PT_R8(64,%r11),0(%r14) stg %r10,__PT_ORIG_GPR2(%r11) # store last break to orig_gpr2 - lgr %r15,%r11 - aghi %r15,-STACK_FRAME_OVERHEAD xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) lgr %r2,%r11 # pass pointer to pt_regs jg kernel_stack_overflow @@ -846,15 +835,14 @@ cleanup_system_call: mvc __TI_last_break(8,%r12),16(%r11) 0: # set up saved register r11 lg %r15,__LC_KERNEL_STACK - aghi %r15,-__PT_SIZE - stg %r15,24(%r11) # r11 pt_regs pointer + la %r9,STACK_FRAME_OVERHEAD(%r15) + stg %r9,24(%r11) # r11 pt_regs pointer # fill pt_regs - mvc __PT_R8(64,%r15),__LC_SAVE_AREA_SYNC - stmg %r0,%r7,__PT_R0(%r15) - mvc __PT_PSW(16,%r15),__LC_SVC_OLD_PSW - mvc __PT_INT_CODE(4,%r15),__LC_SVC_ILC + mvc __PT_R8(64,%r9),__LC_SAVE_AREA_SYNC + stmg %r0,%r7,__PT_R0(%r9) + mvc __PT_PSW(16,%r9),__LC_SVC_OLD_PSW + mvc __PT_INT_CODE(4,%r9),__LC_SVC_ILC # setup saved register r15 - aghi %r15,-STACK_FRAME_OVERHEAD stg %r15,56(%r11) # r15 stack pointer # set new psw address and exit larl %r9,sysc_do_svc @@ -1011,6 +999,7 @@ sys_call_table: #ifdef CONFIG_COMPAT #define SYSCALL(esa,esame,emu) .long emu + .globl sys_call_table_emu sys_call_table_emu: #include "syscalls.S" #undef SYSCALL diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 1630f43..4f5ef629 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -33,7 +33,7 @@ struct irq_class { }; /* - * The list of "main" irq classes on s390. This is the list of interrrupts + * The list of "main" irq classes on s390. This is the list of interrupts * that appear both in /proc/stat ("intr" line) and /proc/interrupts. * Historically only external and I/O interrupts have been part of /proc/stat. * We can't add the split external and I/O sub classes since the first field diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c index b3de277..ac21781 100644 --- a/arch/s390/kernel/machine_kexec.c +++ b/arch/s390/kernel/machine_kexec.c @@ -13,6 +13,7 @@ #include <linux/reboot.h> #include <linux/ftrace.h> #include <linux/debug_locks.h> +#include <linux/suspend.h> #include <asm/cio.h> #include <asm/setup.h> #include <asm/pgtable.h> @@ -67,6 +68,35 @@ void setup_regs(void) memcpy((void *) SAVE_AREA_BASE, (void *) sa, sizeof(struct save_area)); } +/* + * PM notifier callback for kdump + */ +static int machine_kdump_pm_cb(struct notifier_block *nb, unsigned long action, + void *ptr) +{ + switch (action) { + case PM_SUSPEND_PREPARE: + case PM_HIBERNATION_PREPARE: + if (crashk_res.start) + crash_map_reserved_pages(); + break; + case PM_POST_SUSPEND: + case PM_POST_HIBERNATION: + if (crashk_res.start) + crash_unmap_reserved_pages(); + break; + default: + return NOTIFY_DONE; + } + return NOTIFY_OK; +} + +static int __init machine_kdump_pm_init(void) +{ + pm_notifier(machine_kdump_pm_cb, 0); + return 0; +} +arch_initcall(machine_kdump_pm_init); #endif /* diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 536d645..2bc3edd 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -61,18 +61,8 @@ unsigned long thread_saved_pc(struct task_struct *tsk) return sf->gprs[8]; } -/* - * The idle loop on a S390... - */ -static void default_idle(void) +void arch_cpu_idle(void) { - if (cpu_is_offline(smp_processor_id())) - cpu_die(); - local_irq_disable(); - if (need_resched()) { - local_irq_enable(); - return; - } local_mcck_disable(); if (test_thread_flag(TIF_MCCK_PENDING)) { local_mcck_enable(); @@ -83,19 +73,15 @@ static void default_idle(void) vtime_stop_cpu(); } -void cpu_idle(void) +void arch_cpu_idle_exit(void) { - for (;;) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - while (!need_resched() && !test_thread_flag(TIF_MCCK_PENDING)) - default_idle(); - rcu_idle_exit(); - tick_nohz_idle_exit(); - if (test_thread_flag(TIF_MCCK_PENDING)) - s390_handle_mcck(); - schedule_preempt_disabled(); - } + if (test_thread_flag(TIF_MCCK_PENDING)) + s390_handle_mcck(); +} + +void arch_cpu_idle_dead(void) +{ + cpu_die(); } extern void __kprobes kernel_thread_starter(void); diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 2926885..0f419c5 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -377,11 +377,14 @@ static void __init setup_lowcore(void) PSW_MASK_DAT | PSW_MASK_MCHECK; lc->io_new_psw.addr = PSW_ADDR_AMODE | (unsigned long) io_int_handler; lc->clock_comparator = -1ULL; - lc->kernel_stack = ((unsigned long) &init_thread_union) + THREAD_SIZE; + lc->kernel_stack = ((unsigned long) &init_thread_union) + + THREAD_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs); lc->async_stack = (unsigned long) - __alloc_bootmem(ASYNC_SIZE, ASYNC_SIZE, 0) + ASYNC_SIZE; + __alloc_bootmem(ASYNC_SIZE, ASYNC_SIZE, 0) + + ASYNC_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs); lc->panic_stack = (unsigned long) - __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, 0) + PAGE_SIZE; + __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, 0) + + PAGE_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs); lc->current_task = (unsigned long) init_thread_union.thread_info.task; lc->thread_info = (unsigned long) &init_thread_union; lc->machine_flags = S390_lowcore.machine_flags; diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 549c9d1..8074cb4 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -181,8 +181,10 @@ static int __cpuinit pcpu_alloc_lowcore(struct pcpu *pcpu, int cpu) lc = pcpu->lowcore; memcpy(lc, &S390_lowcore, 512); memset((char *) lc + 512, 0, sizeof(*lc) - 512); - lc->async_stack = pcpu->async_stack + ASYNC_SIZE; - lc->panic_stack = pcpu->panic_stack + PAGE_SIZE; + lc->async_stack = pcpu->async_stack + ASYNC_SIZE + - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs); + lc->panic_stack = pcpu->panic_stack + PAGE_SIZE + - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs); lc->cpu_nr = cpu; #ifndef CONFIG_64BIT if (MACHINE_HAS_IEEE) { @@ -253,7 +255,8 @@ static void pcpu_attach_task(struct pcpu *pcpu, struct task_struct *tsk) struct _lowcore *lc = pcpu->lowcore; struct thread_info *ti = task_thread_info(tsk); - lc->kernel_stack = (unsigned long) task_stack_page(tsk) + THREAD_SIZE; + lc->kernel_stack = (unsigned long) task_stack_page(tsk) + + THREAD_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs); lc->thread_info = (unsigned long) task_thread_info(tsk); lc->current_task = (unsigned long) tsk; lc->user_timer = ti->user_timer; @@ -711,8 +714,7 @@ static void __cpuinit smp_start_secondary(void *cpuvoid) set_cpu_online(smp_processor_id(), true); inc_irq_stat(CPU_RST); local_irq_enable(); - /* cpu_idle will call schedule for us */ - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } /* Upping and downing of CPUs */ @@ -810,8 +812,10 @@ void __init smp_prepare_boot_cpu(void) pcpu->state = CPU_STATE_CONFIGURED; pcpu->address = boot_cpu_address; pcpu->lowcore = (struct _lowcore *)(unsigned long) store_prefix(); - pcpu->async_stack = S390_lowcore.async_stack - ASYNC_SIZE; - pcpu->panic_stack = S390_lowcore.panic_stack - PAGE_SIZE; + pcpu->async_stack = S390_lowcore.async_stack - ASYNC_SIZE + + STACK_FRAME_OVERHEAD + sizeof(struct pt_regs); + pcpu->panic_stack = S390_lowcore.panic_stack - PAGE_SIZE + + STACK_FRAME_OVERHEAD + sizeof(struct pt_regs); S390_lowcore.percpu_offset = __per_cpu_offset[0]; smp_cpu_set_polarization(0, POLARIZATION_UNKNOWN); set_cpu_present(0, true); diff --git a/arch/s390/kernel/suspend.c b/arch/s390/kernel/suspend.c index aa1494d..c479d2f 100644 --- a/arch/s390/kernel/suspend.c +++ b/arch/s390/kernel/suspend.c @@ -41,6 +41,7 @@ struct page_key_data { static struct page_key_data *page_key_data; static struct page_key_data *page_key_rp, *page_key_wp; static unsigned long page_key_rx, page_key_wx; +unsigned long suspend_zero_pages; /* * For each page in the hibernation image one additional byte is @@ -149,6 +150,36 @@ int pfn_is_nosave(unsigned long pfn) return 0; } +/* + * PM notifier callback for suspend + */ +static int suspend_pm_cb(struct notifier_block *nb, unsigned long action, + void *ptr) +{ + switch (action) { + case PM_SUSPEND_PREPARE: + case PM_HIBERNATION_PREPARE: + suspend_zero_pages = __get_free_pages(GFP_KERNEL, LC_ORDER); + if (!suspend_zero_pages) + return NOTIFY_BAD; + break; + case PM_POST_SUSPEND: + case PM_POST_HIBERNATION: + free_pages(suspend_zero_pages, LC_ORDER); + break; + default: + return NOTIFY_DONE; + } + return NOTIFY_OK; +} + +static int __init suspend_pm_init(void) +{ + pm_notifier(suspend_pm_cb, 0); + return 0; +} +arch_initcall(suspend_pm_init); + void save_processor_state(void) { /* swsusp_arch_suspend() actually saves all cpu register contents. diff --git a/arch/s390/kernel/swsusp_asm64.S b/arch/s390/kernel/swsusp_asm64.S index d4ca4e0..c487be4 100644 --- a/arch/s390/kernel/swsusp_asm64.S +++ b/arch/s390/kernel/swsusp_asm64.S @@ -36,8 +36,8 @@ ENTRY(swsusp_arch_suspend) /* Store prefix register on stack */ stpx __SF_EMPTY(%r15) - /* Save prefix register contents for lowcore */ - llgf %r4,__SF_EMPTY(%r15) + /* Save prefix register contents for lowcore copy */ + llgf %r10,__SF_EMPTY(%r15) /* Get pointer to save area */ lghi %r1,0x1000 @@ -91,7 +91,18 @@ ENTRY(swsusp_arch_suspend) xc __SF_EMPTY(4,%r15),__SF_EMPTY(%r15) spx __SF_EMPTY(%r15) + /* Save absolute zero pages */ + larl %r2,suspend_zero_pages + lg %r2,0(%r2) + lghi %r4,0 + lghi %r3,2*PAGE_SIZE + lghi %r5,2*PAGE_SIZE +1: mvcle %r2,%r4,0 + jo 1b + + /* Copy lowcore to absolute zero lowcore */ lghi %r2,0 + lgr %r4,%r10 lghi %r3,2*PAGE_SIZE lghi %r5,2*PAGE_SIZE 1: mvcle %r2,%r4,0 @@ -248,8 +259,20 @@ restore_registers: /* Load old stack */ lg %r15,0x2f8(%r13) + /* Save prefix register */ + mvc __SF_EMPTY(4,%r15),0x318(%r13) + + /* Restore absolute zero pages */ + lghi %r2,0 + larl %r4,suspend_zero_pages + lg %r4,0(%r4) + lghi %r3,2*PAGE_SIZE + lghi %r5,2*PAGE_SIZE +1: mvcle %r2,%r4,0 + jo 1b + /* Restore prefix register */ - spx 0x318(%r13) + spx __SF_EMPTY(%r15) /* Activate DAT */ stosm __SF_EMPTY(%r15),0x04 diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c index d0964d2..23eb222 100644 --- a/arch/s390/kernel/sys_s390.c +++ b/arch/s390/kernel/sys_s390.c @@ -132,19 +132,9 @@ SYSCALL_DEFINE1(s390_fadvise64_64, struct fadvise64_64_args __user *, args) * to * %r2: fd, %r3: mode, %r4/%r5: offset, 96(%r15)-103(%r15): len */ -SYSCALL_DEFINE(s390_fallocate)(int fd, int mode, loff_t offset, - u32 len_high, u32 len_low) +SYSCALL_DEFINE5(s390_fallocate, int, fd, int, mode, loff_t, offset, + u32, len_high, u32, len_low) { return sys_fallocate(fd, mode, offset, ((u64)len_high << 32) | len_low); } -#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS -asmlinkage long SyS_s390_fallocate(long fd, long mode, loff_t offset, - long len_high, long len_low) -{ - return SYSC_s390_fallocate((int) fd, (int) mode, offset, - (u32) len_high, (u32) len_low); -} -SYSCALL_ALIAS(sys_s390_fallocate, SyS_s390_fallocate); -#endif - #endif diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 630b935..d2baabe 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -85,7 +85,7 @@ SYSCALL(sys_sigpending,sys_sigpending,compat_sys_sigpending_wrapper) SYSCALL(sys_sethostname,sys_sethostname,sys32_sethostname_wrapper) SYSCALL(sys_setrlimit,sys_setrlimit,compat_sys_setrlimit_wrapper) /* 75 */ SYSCALL(sys_old_getrlimit,sys_getrlimit,compat_sys_old_getrlimit_wrapper) -SYSCALL(sys_getrusage,sys_getrusage,compat_sys_getrusage_wrapper) +SYSCALL(sys_getrusage,sys_getrusage,compat_sys_getrusage) SYSCALL(sys_gettimeofday,sys_gettimeofday,compat_sys_gettimeofday_wrapper) SYSCALL(sys_settimeofday,sys_settimeofday,compat_sys_settimeofday_wrapper) SYSCALL(sys_getgroups16,sys_ni_syscall,sys32_getgroups16_wrapper) /* 80 old getgroups16 syscall */ @@ -118,14 +118,14 @@ SYSCALL(sys_newstat,sys_newstat,compat_sys_newstat_wrapper) SYSCALL(sys_newlstat,sys_newlstat,compat_sys_newlstat_wrapper) SYSCALL(sys_newfstat,sys_newfstat,compat_sys_newfstat_wrapper) NI_SYSCALL /* old uname syscall */ -SYSCALL(sys_lookup_dcookie,sys_lookup_dcookie,sys32_lookup_dcookie_wrapper) /* 110 */ +SYSCALL(sys_lookup_dcookie,sys_lookup_dcookie,compat_sys_lookup_dcookie) /* 110 */ SYSCALL(sys_vhangup,sys_vhangup,sys_vhangup) NI_SYSCALL /* old "idle" system call */ NI_SYSCALL /* vm86old for i386 */ SYSCALL(sys_wait4,sys_wait4,compat_sys_wait4) SYSCALL(sys_swapoff,sys_swapoff,sys32_swapoff_wrapper) /* 115 */ SYSCALL(sys_sysinfo,sys_sysinfo,compat_sys_sysinfo_wrapper) -SYSCALL(sys_s390_ipc,sys_s390_ipc,sys32_ipc_wrapper) +SYSCALL(sys_s390_ipc,sys_s390_ipc,compat_sys_s390_ipc) SYSCALL(sys_fsync,sys_fsync,sys32_fsync_wrapper) SYSCALL(sys_sigreturn,sys_sigreturn,sys32_sigreturn) SYSCALL(sys_clone,sys_clone,sys_clone_wrapper) /* 120 */ @@ -195,7 +195,7 @@ SYSCALL(sys_getcwd,sys_getcwd,sys32_getcwd_wrapper) SYSCALL(sys_capget,sys_capget,sys32_capget_wrapper) SYSCALL(sys_capset,sys_capset,sys32_capset_wrapper) /* 185 */ SYSCALL(sys_sigaltstack,sys_sigaltstack,compat_sys_sigaltstack) -SYSCALL(sys_sendfile,sys_sendfile64,sys32_sendfile_wrapper) +SYSCALL(sys_sendfile,sys_sendfile64,compat_sys_sendfile) NI_SYSCALL /* streams1 */ NI_SYSCALL /* streams2 */ SYSCALL(sys_vfork,sys_vfork,sys_vfork) /* 190 */ @@ -231,7 +231,7 @@ SYSCALL(sys_madvise,sys_madvise,sys32_madvise_wrapper) SYSCALL(sys_getdents64,sys_getdents64,sys32_getdents64_wrapper) /* 220 */ SYSCALL(sys_fcntl64,sys_ni_syscall,compat_sys_fcntl64_wrapper) SYSCALL(sys_readahead,sys_readahead,sys32_readahead_wrapper) -SYSCALL(sys_sendfile64,sys_ni_syscall,sys32_sendfile64_wrapper) +SYSCALL(sys_sendfile64,sys_ni_syscall,compat_sys_sendfile64) SYSCALL(sys_setxattr,sys_setxattr,sys32_setxattr_wrapper) SYSCALL(sys_lsetxattr,sys_lsetxattr,sys32_lsetxattr_wrapper) /* 225 */ SYSCALL(sys_fsetxattr,sys_fsetxattr,sys32_fsetxattr_wrapper) @@ -317,20 +317,20 @@ SYSCALL(sys_get_robust_list,sys_get_robust_list,compat_sys_get_robust_list) SYSCALL(sys_splice,sys_splice,sys_splice_wrapper) SYSCALL(sys_sync_file_range,sys_sync_file_range,sys_sync_file_range_wrapper) SYSCALL(sys_tee,sys_tee,sys_tee_wrapper) -SYSCALL(sys_vmsplice,sys_vmsplice,compat_sys_vmsplice_wrapper) +SYSCALL(sys_vmsplice,sys_vmsplice,compat_sys_vmsplice) NI_SYSCALL /* 310 sys_move_pages */ SYSCALL(sys_getcpu,sys_getcpu,sys_getcpu_wrapper) -SYSCALL(sys_epoll_pwait,sys_epoll_pwait,compat_sys_epoll_pwait_wrapper) +SYSCALL(sys_epoll_pwait,sys_epoll_pwait,compat_sys_epoll_pwait) SYSCALL(sys_utimes,sys_utimes,compat_sys_utimes_wrapper) SYSCALL(sys_s390_fallocate,sys_fallocate,sys_fallocate_wrapper) SYSCALL(sys_utimensat,sys_utimensat,compat_sys_utimensat_wrapper) /* 315 */ -SYSCALL(sys_signalfd,sys_signalfd,compat_sys_signalfd_wrapper) +SYSCALL(sys_signalfd,sys_signalfd,compat_sys_signalfd) NI_SYSCALL /* 317 old sys_timer_fd */ SYSCALL(sys_eventfd,sys_eventfd,sys_eventfd_wrapper) SYSCALL(sys_timerfd_create,sys_timerfd_create,sys_timerfd_create_wrapper) SYSCALL(sys_timerfd_settime,sys_timerfd_settime,compat_sys_timerfd_settime) /* 320 */ SYSCALL(sys_timerfd_gettime,sys_timerfd_gettime,compat_sys_timerfd_gettime) -SYSCALL(sys_signalfd4,sys_signalfd4,compat_sys_signalfd4_wrapper) +SYSCALL(sys_signalfd4,sys_signalfd4,compat_sys_signalfd4) SYSCALL(sys_eventfd2,sys_eventfd2,sys_eventfd2_wrapper) SYSCALL(sys_inotify_init1,sys_inotify_init1,sys_inotify_init1_wrapper) SYSCALL(sys_pipe2,sys_pipe2,sys_pipe2_wrapper) /* 325 */ diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 13dd63f..c576232 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -12,49 +12,16 @@ * 'Traps.c' handles hardware traps and faults after we have saved some * state in 'asm.s'. */ -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/errno.h> +#include <linux/kprobes.h> +#include <linux/kdebug.h> +#include <linux/module.h> #include <linux/ptrace.h> -#include <linux/timer.h> +#include <linux/sched.h> #include <linux/mm.h> -#include <linux/smp.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/seq_file.h> -#include <linux/delay.h> -#include <linux/module.h> -#include <linux/kdebug.h> -#include <linux/kallsyms.h> -#include <linux/reboot.h> -#include <linux/kprobes.h> -#include <linux/bug.h> -#include <linux/utsname.h> -#include <asm/uaccess.h> -#include <asm/io.h> -#include <linux/atomic.h> -#include <asm/mathemu.h> -#include <asm/cpcmd.h> -#include <asm/lowcore.h> -#include <asm/debug.h> -#include <asm/ipl.h> #include "entry.h" int show_unhandled_signals = 1; -#define stack_pointer ({ void **sp; asm("la %0,0(15)" : "=&d" (sp)); sp; }) - -#ifndef CONFIG_64BIT -#define LONG "%08lx " -#define FOURLONG "%08lx %08lx %08lx %08lx\n" -static int kstack_depth_to_print = 12; -#else /* CONFIG_64BIT */ -#define LONG "%016lx " -#define FOURLONG "%016lx %016lx %016lx %016lx\n" -static int kstack_depth_to_print = 20; -#endif /* CONFIG_64BIT */ - static inline void __user *get_trap_ip(struct pt_regs *regs) { #ifdef CONFIG_64BIT @@ -72,215 +39,6 @@ static inline void __user *get_trap_ip(struct pt_regs *regs) #endif } -/* - * For show_trace we have tree different stack to consider: - * - the panic stack which is used if the kernel stack has overflown - * - the asynchronous interrupt stack (cpu related) - * - the synchronous kernel stack (process related) - * The stack trace can start at any of the three stack and can potentially - * touch all of them. The order is: panic stack, async stack, sync stack. - */ -static unsigned long -__show_trace(unsigned long sp, unsigned long low, unsigned long high) -{ - struct stack_frame *sf; - struct pt_regs *regs; - - while (1) { - sp = sp & PSW_ADDR_INSN; - if (sp < low || sp > high - sizeof(*sf)) - return sp; - sf = (struct stack_frame *) sp; - printk("([<%016lx>] ", sf->gprs[8] & PSW_ADDR_INSN); - print_symbol("%s)\n", sf->gprs[8] & PSW_ADDR_INSN); - /* Follow the backchain. */ - while (1) { - low = sp; - sp = sf->back_chain & PSW_ADDR_INSN; - if (!sp) - break; - if (sp <= low || sp > high - sizeof(*sf)) - return sp; - sf = (struct stack_frame *) sp; - printk(" [<%016lx>] ", sf->gprs[8] & PSW_ADDR_INSN); - print_symbol("%s\n", sf->gprs[8] & PSW_ADDR_INSN); - } - /* Zero backchain detected, check for interrupt frame. */ - sp = (unsigned long) (sf + 1); - if (sp <= low || sp > high - sizeof(*regs)) - return sp; - regs = (struct pt_regs *) sp; - printk(" [<%016lx>] ", regs->psw.addr & PSW_ADDR_INSN); - print_symbol("%s\n", regs->psw.addr & PSW_ADDR_INSN); - low = sp; - sp = regs->gprs[15]; - } -} - -static void show_trace(struct task_struct *task, unsigned long *stack) -{ - register unsigned long __r15 asm ("15"); - unsigned long sp; - - sp = (unsigned long) stack; - if (!sp) - sp = task ? task->thread.ksp : __r15; - printk("Call Trace:\n"); -#ifdef CONFIG_CHECK_STACK - sp = __show_trace(sp, S390_lowcore.panic_stack - 4096, - S390_lowcore.panic_stack); -#endif - sp = __show_trace(sp, S390_lowcore.async_stack - ASYNC_SIZE, - S390_lowcore.async_stack); - if (task) - __show_trace(sp, (unsigned long) task_stack_page(task), - (unsigned long) task_stack_page(task) + THREAD_SIZE); - else - __show_trace(sp, S390_lowcore.thread_info, - S390_lowcore.thread_info + THREAD_SIZE); - if (!task) - task = current; - debug_show_held_locks(task); -} - -void show_stack(struct task_struct *task, unsigned long *sp) -{ - register unsigned long * __r15 asm ("15"); - unsigned long *stack; - int i; - - if (!sp) - stack = task ? (unsigned long *) task->thread.ksp : __r15; - else - stack = sp; - - for (i = 0; i < kstack_depth_to_print; i++) { - if (((addr_t) stack & (THREAD_SIZE-1)) == 0) - break; - if ((i * sizeof(long) % 32) == 0) - printk("%s ", i == 0 ? "" : "\n"); - printk(LONG, *stack++); - } - printk("\n"); - show_trace(task, sp); -} - -static void show_last_breaking_event(struct pt_regs *regs) -{ -#ifdef CONFIG_64BIT - printk("Last Breaking-Event-Address:\n"); - printk(" [<%016lx>] ", regs->args[0] & PSW_ADDR_INSN); - print_symbol("%s\n", regs->args[0] & PSW_ADDR_INSN); -#endif -} - -/* - * The architecture-independent dump_stack generator - */ -void dump_stack(void) -{ - printk("CPU: %d %s %s %.*s\n", - task_thread_info(current)->cpu, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); - printk("Process %s (pid: %d, task: %p, ksp: %p)\n", - current->comm, current->pid, current, - (void *) current->thread.ksp); - show_stack(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); - -static inline int mask_bits(struct pt_regs *regs, unsigned long bits) -{ - return (regs->psw.mask & bits) / ((~bits + 1) & bits); -} - -void show_registers(struct pt_regs *regs) -{ - char *mode; - - mode = user_mode(regs) ? "User" : "Krnl"; - printk("%s PSW : %p %p", - mode, (void *) regs->psw.mask, - (void *) regs->psw.addr); - print_symbol(" (%s)\n", regs->psw.addr & PSW_ADDR_INSN); - printk(" R:%x T:%x IO:%x EX:%x Key:%x M:%x W:%x " - "P:%x AS:%x CC:%x PM:%x", mask_bits(regs, PSW_MASK_PER), - mask_bits(regs, PSW_MASK_DAT), mask_bits(regs, PSW_MASK_IO), - mask_bits(regs, PSW_MASK_EXT), mask_bits(regs, PSW_MASK_KEY), - mask_bits(regs, PSW_MASK_MCHECK), mask_bits(regs, PSW_MASK_WAIT), - mask_bits(regs, PSW_MASK_PSTATE), mask_bits(regs, PSW_MASK_ASC), - mask_bits(regs, PSW_MASK_CC), mask_bits(regs, PSW_MASK_PM)); -#ifdef CONFIG_64BIT - printk(" EA:%x", mask_bits(regs, PSW_MASK_EA | PSW_MASK_BA)); -#endif - printk("\n%s GPRS: " FOURLONG, mode, - regs->gprs[0], regs->gprs[1], regs->gprs[2], regs->gprs[3]); - printk(" " FOURLONG, - regs->gprs[4], regs->gprs[5], regs->gprs[6], regs->gprs[7]); - printk(" " FOURLONG, - regs->gprs[8], regs->gprs[9], regs->gprs[10], regs->gprs[11]); - printk(" " FOURLONG, - regs->gprs[12], regs->gprs[13], regs->gprs[14], regs->gprs[15]); - - show_code(regs); -} - -void show_regs(struct pt_regs *regs) -{ - printk("CPU: %d %s %s %.*s\n", - task_thread_info(current)->cpu, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); - printk("Process %s (pid: %d, task: %p, ksp: %p)\n", - current->comm, current->pid, current, - (void *) current->thread.ksp); - show_registers(regs); - /* Show stack backtrace if pt_regs is from kernel mode */ - if (!user_mode(regs)) - show_trace(NULL, (unsigned long *) regs->gprs[15]); - show_last_breaking_event(regs); -} - -static DEFINE_SPINLOCK(die_lock); - -void die(struct pt_regs *regs, const char *str) -{ - static int die_counter; - - oops_enter(); - lgr_info_log(); - debug_stop_all(); - console_verbose(); - spin_lock_irq(&die_lock); - bust_spinlocks(1); - printk("%s: %04x [#%d] ", str, regs->int_code & 0xffff, ++die_counter); -#ifdef CONFIG_PREEMPT - printk("PREEMPT "); -#endif -#ifdef CONFIG_SMP - printk("SMP "); -#endif -#ifdef CONFIG_DEBUG_PAGEALLOC - printk("DEBUG_PAGEALLOC"); -#endif - printk("\n"); - notify_die(DIE_OOPS, str, regs, 0, regs->int_code & 0xffff, SIGSEGV); - print_modules(); - show_regs(regs); - bust_spinlocks(0); - add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE); - spin_unlock_irq(&die_lock); - if (in_interrupt()) - panic("Fatal exception in interrupt"); - if (panic_on_oops) - panic("Fatal exception: panic_on_oops"); - oops_exit(); - do_exit(SIGSEGV); -} - static inline void report_user_fault(struct pt_regs *regs, int signr) { if ((task_pid_nr(current) > 1) && !show_unhandled_signals) diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c index a0042ac..3fb0935 100644 --- a/arch/s390/kernel/vtime.c +++ b/arch/s390/kernel/vtime.c @@ -158,8 +158,6 @@ void __kprobes vtime_stop_cpu(void) unsigned long psw_mask; trace_hardirqs_on(); - /* Don't trace preempt off for idle. */ - stop_critical_timings(); /* Wait for external, I/O or machine check interrupt. */ psw_mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_DAT | @@ -169,9 +167,6 @@ void __kprobes vtime_stop_cpu(void) /* Call the assembler magic in entry.S */ psw_idle(idle, psw_mask); - /* Reenable preemption tracer. */ - start_critical_timings(); - /* Account time spent with enabled wait psw loaded as idle time. */ idle->sequence++; smp_wmb(); diff --git a/arch/s390/kvm/trace.h b/arch/s390/kvm/trace.h index 2b29e62..c2f582bb1c 100644 --- a/arch/s390/kvm/trace.h +++ b/arch/s390/kvm/trace.h @@ -67,7 +67,7 @@ TRACE_EVENT(kvm_s390_sie_fault, #define sie_intercept_code \ {0x04, "Instruction"}, \ {0x08, "Program interruption"}, \ - {0x0C, "Instruction and program interuption"}, \ + {0x0C, "Instruction and program interruption"}, \ {0x10, "External request"}, \ {0x14, "External interruption"}, \ {0x18, "I/O request"}, \ @@ -117,7 +117,7 @@ TRACE_EVENT(kvm_s390_intercept_instruction, __entry->instruction, insn_to_mnemonic((unsigned char *) &__entry->instruction, - __entry->insn) ? + __entry->insn, sizeof(__entry->insn)) ? "unknown" : __entry->insn) ); diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile index 6ab0d0b..20b0e97 100644 --- a/arch/s390/lib/Makefile +++ b/arch/s390/lib/Makefile @@ -3,7 +3,6 @@ # lib-y += delay.o string.o uaccess_std.o uaccess_pt.o -obj-y += usercopy.o obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o mem32.o obj-$(CONFIG_64BIT) += mem64.o lib-$(CONFIG_64BIT) += uaccess_mvcos.o diff --git a/arch/s390/lib/usercopy.c b/arch/s390/lib/usercopy.c deleted file mode 100644 index 14b363f..0000000 --- a/arch/s390/lib/usercopy.c +++ /dev/null @@ -1,8 +0,0 @@ -#include <linux/module.h> -#include <linux/bug.h> - -void copy_from_user_overflow(void) -{ - WARN(1, "Buffer overflow detected!\n"); -} -EXPORT_SYMBOL(copy_from_user_overflow); diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c index 479e9428..9d84a1f 100644 --- a/arch/s390/mm/cmm.c +++ b/arch/s390/mm/cmm.c @@ -458,12 +458,10 @@ static int __init cmm_init(void) if (rc) goto out_pm; cmm_thread_ptr = kthread_run(cmm_thread, NULL, "cmmthread"); - rc = IS_ERR(cmm_thread_ptr) ? PTR_ERR(cmm_thread_ptr) : 0; - if (rc) - goto out_kthread; - return 0; + if (!IS_ERR(cmm_thread_ptr)) + return 0; -out_kthread: + rc = PTR_ERR(cmm_thread_ptr); unregister_pm_notifier(&cmm_power_notifier); out_pm: unregister_oom_notifier(&cmm_oom_nb); diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 2fb9e63..047c3e4 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -395,8 +395,13 @@ void __kprobes do_protection_exception(struct pt_regs *regs) int fault; trans_exc_code = regs->int_parm_long; - /* Protection exception is suppressing, decrement psw address. */ - regs->psw.addr = __rewind_psw(regs->psw, regs->int_code >> 16); + /* + * Protection exceptions are suppressing, decrement psw address. + * The exception to this rule are aborted transactions, for these + * the PSW already points to the correct location. + */ + if (!(regs->int_code & 0x200)) + regs->psw.addr = __rewind_psw(regs->psw, regs->int_code >> 16); /* * Check for low-address protection. This needs to be treated * as a special case because the translation exception code diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c index 532525e..121089d 100644 --- a/arch/s390/mm/hugetlbpage.c +++ b/arch/s390/mm/hugetlbpage.c @@ -39,7 +39,7 @@ int arch_prepare_hugepage(struct page *page) if (!ptep) return -ENOMEM; - pte = mk_pte(page, PAGE_RW); + pte_val(pte) = addr; for (i = 0; i < PTRS_PER_PTE; i++) { set_pte_at(&init_mm, addr + i * PAGE_SIZE, ptep + i, pte); pte_val(pte) += PAGE_SIZE; diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index 49ce6bb2..0b09b23 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -42,11 +42,10 @@ pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__((__aligned__(PAGE_SIZE))); unsigned long empty_zero_page, zero_page_mask; EXPORT_SYMBOL(empty_zero_page); -static unsigned long __init setup_zero_pages(void) +static void __init setup_zero_pages(void) { struct cpuid cpu_id; unsigned int order; - unsigned long size; struct page *page; int i; @@ -63,10 +62,18 @@ static unsigned long __init setup_zero_pages(void) break; case 0x2097: /* z10 */ case 0x2098: /* z10 */ - default: + case 0x2817: /* z196 */ + case 0x2818: /* z196 */ order = 2; break; + case 0x2827: /* zEC12 */ + default: + order = 5; + break; } + /* Limit number of empty zero pages for small memory sizes */ + if (order > 2 && totalram_pages <= 16384) + order = 2; empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order); if (!empty_zero_page) @@ -75,14 +82,11 @@ static unsigned long __init setup_zero_pages(void) page = virt_to_page((void *) empty_zero_page); split_page(page, order); for (i = 1 << order; i > 0; i--) { - SetPageReserved(page); + mark_page_reserved(page); page++; } - size = PAGE_SIZE << order; - zero_page_mask = (size - 1) & PAGE_MASK; - - return 1UL << order; + zero_page_mask = ((PAGE_SIZE << order) - 1) & PAGE_MASK; } /* @@ -139,7 +143,7 @@ void __init mem_init(void) /* this will put all low memory onto the freelists */ totalram_pages += free_all_bootmem(); - totalram_pages -= setup_zero_pages(); /* Setup zeroed pages. */ + setup_zero_pages(); /* Setup zeroed pages. */ reservedpages = 0; @@ -158,34 +162,15 @@ void __init mem_init(void) PFN_ALIGN((unsigned long)&_eshared) - 1); } -void free_init_pages(char *what, unsigned long begin, unsigned long end) -{ - unsigned long addr = begin; - - if (begin >= end) - return; - for (; addr < end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - memset((void *)(addr & PAGE_MASK), POISON_FREE_INITMEM, - PAGE_SIZE); - free_page(addr); - totalram_pages++; - } - printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10); -} - void free_initmem(void) { - free_init_pages("unused kernel memory", - (unsigned long)&__init_begin, - (unsigned long)&__init_end); + free_initmem_default(0); } #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - free_init_pages("initrd memory", start, end); + free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd"); } #endif diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c index d21040e..80adfbf 100644 --- a/arch/s390/mm/pageattr.c +++ b/arch/s390/mm/pageattr.c @@ -9,31 +9,25 @@ #include <asm/pgtable.h> #include <asm/page.h> +static inline unsigned long sske_frame(unsigned long addr, unsigned char skey) +{ + asm volatile(".insn rrf,0xb22b0000,%[skey],%[addr],9,0" + : [addr] "+a" (addr) : [skey] "d" (skey)); + return addr; +} + void storage_key_init_range(unsigned long start, unsigned long end) { - unsigned long boundary, function, size; + unsigned long boundary, size; while (start < end) { - if (MACHINE_HAS_EDAT2) { - /* set storage keys for a 2GB frame */ - function = 0x22000 | PAGE_DEFAULT_KEY; - size = 1UL << 31; - boundary = (start + size) & ~(size - 1); - if (boundary <= end) { - do { - start = pfmf(function, start); - } while (start < boundary); - continue; - } - } if (MACHINE_HAS_EDAT1) { /* set storage keys for a 1MB frame */ - function = 0x21000 | PAGE_DEFAULT_KEY; size = 1UL << 20; boundary = (start + size) & ~(size - 1); if (boundary <= end) { do { - start = pfmf(function, start); + start = sske_frame(start, PAGE_DEFAULT_KEY); } while (start < boundary); continue; } diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index ae44d2a..bd954e9 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -379,75 +379,183 @@ out_unmap: } EXPORT_SYMBOL_GPL(gmap_map_segment); -/* - * this function is assumed to be called with mmap_sem held - */ -unsigned long __gmap_fault(unsigned long address, struct gmap *gmap) +static unsigned long *gmap_table_walk(unsigned long address, struct gmap *gmap) { - unsigned long *table, vmaddr, segment; - struct mm_struct *mm; - struct gmap_pgtable *mp; - struct gmap_rmap *rmap; - struct vm_area_struct *vma; - struct page *page; - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; + unsigned long *table; - current->thread.gmap_addr = address; - mm = gmap->mm; - /* Walk the gmap address space page table */ table = gmap->table + ((address >> 53) & 0x7ff); if (unlikely(*table & _REGION_ENTRY_INV)) - return -EFAULT; + return ERR_PTR(-EFAULT); table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + ((address >> 42) & 0x7ff); if (unlikely(*table & _REGION_ENTRY_INV)) - return -EFAULT; + return ERR_PTR(-EFAULT); table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + ((address >> 31) & 0x7ff); if (unlikely(*table & _REGION_ENTRY_INV)) - return -EFAULT; + return ERR_PTR(-EFAULT); table = (unsigned long *)(*table & _REGION_ENTRY_ORIGIN); table = table + ((address >> 20) & 0x7ff); + return table; +} + +/** + * __gmap_translate - translate a guest address to a user space address + * @address: guest address + * @gmap: pointer to guest mapping meta data structure + * + * Returns user space address which corresponds to the guest address or + * -EFAULT if no such mapping exists. + * This function does not establish potentially missing page table entries. + * The mmap_sem of the mm that belongs to the address space must be held + * when this function gets called. + */ +unsigned long __gmap_translate(unsigned long address, struct gmap *gmap) +{ + unsigned long *segment_ptr, vmaddr, segment; + struct gmap_pgtable *mp; + struct page *page; + current->thread.gmap_addr = address; + segment_ptr = gmap_table_walk(address, gmap); + if (IS_ERR(segment_ptr)) + return PTR_ERR(segment_ptr); /* Convert the gmap address to an mm address. */ - segment = *table; - if (likely(!(segment & _SEGMENT_ENTRY_INV))) { + segment = *segment_ptr; + if (!(segment & _SEGMENT_ENTRY_INV)) { page = pfn_to_page(segment >> PAGE_SHIFT); mp = (struct gmap_pgtable *) page->index; return mp->vmaddr | (address & ~PMD_MASK); } else if (segment & _SEGMENT_ENTRY_RO) { vmaddr = segment & _SEGMENT_ENTRY_ORIGIN; - vma = find_vma(mm, vmaddr); - if (!vma || vma->vm_start > vmaddr) - return -EFAULT; - - /* Walk the parent mm page table */ - pgd = pgd_offset(mm, vmaddr); - pud = pud_alloc(mm, pgd, vmaddr); - if (!pud) - return -ENOMEM; - pmd = pmd_alloc(mm, pud, vmaddr); - if (!pmd) - return -ENOMEM; - if (!pmd_present(*pmd) && - __pte_alloc(mm, vma, pmd, vmaddr)) - return -ENOMEM; - /* pmd now points to a valid segment table entry. */ - rmap = kmalloc(sizeof(*rmap), GFP_KERNEL|__GFP_REPEAT); - if (!rmap) - return -ENOMEM; - /* Link gmap segment table entry location to page table. */ - page = pmd_page(*pmd); - mp = (struct gmap_pgtable *) page->index; - rmap->entry = table; - spin_lock(&mm->page_table_lock); + return vmaddr | (address & ~PMD_MASK); + } + return -EFAULT; +} +EXPORT_SYMBOL_GPL(__gmap_translate); + +/** + * gmap_translate - translate a guest address to a user space address + * @address: guest address + * @gmap: pointer to guest mapping meta data structure + * + * Returns user space address which corresponds to the guest address or + * -EFAULT if no such mapping exists. + * This function does not establish potentially missing page table entries. + */ +unsigned long gmap_translate(unsigned long address, struct gmap *gmap) +{ + unsigned long rc; + + down_read(&gmap->mm->mmap_sem); + rc = __gmap_translate(address, gmap); + up_read(&gmap->mm->mmap_sem); + return rc; +} +EXPORT_SYMBOL_GPL(gmap_translate); + +static int gmap_connect_pgtable(unsigned long segment, + unsigned long *segment_ptr, + struct gmap *gmap) +{ + unsigned long vmaddr; + struct vm_area_struct *vma; + struct gmap_pgtable *mp; + struct gmap_rmap *rmap; + struct mm_struct *mm; + struct page *page; + pgd_t *pgd; + pud_t *pud; + pmd_t *pmd; + + mm = gmap->mm; + vmaddr = segment & _SEGMENT_ENTRY_ORIGIN; + vma = find_vma(mm, vmaddr); + if (!vma || vma->vm_start > vmaddr) + return -EFAULT; + /* Walk the parent mm page table */ + pgd = pgd_offset(mm, vmaddr); + pud = pud_alloc(mm, pgd, vmaddr); + if (!pud) + return -ENOMEM; + pmd = pmd_alloc(mm, pud, vmaddr); + if (!pmd) + return -ENOMEM; + if (!pmd_present(*pmd) && + __pte_alloc(mm, vma, pmd, vmaddr)) + return -ENOMEM; + /* pmd now points to a valid segment table entry. */ + rmap = kmalloc(sizeof(*rmap), GFP_KERNEL|__GFP_REPEAT); + if (!rmap) + return -ENOMEM; + /* Link gmap segment table entry location to page table. */ + page = pmd_page(*pmd); + mp = (struct gmap_pgtable *) page->index; + rmap->entry = segment_ptr; + spin_lock(&mm->page_table_lock); + if (*segment_ptr == segment) { list_add(&rmap->list, &mp->mapper); - spin_unlock(&mm->page_table_lock); /* Set gmap segment table entry to page table. */ - *table = pmd_val(*pmd) & PAGE_MASK; - return vmaddr | (address & ~PMD_MASK); + *segment_ptr = pmd_val(*pmd) & PAGE_MASK; + rmap = NULL; + } + spin_unlock(&mm->page_table_lock); + kfree(rmap); + return 0; +} + +static void gmap_disconnect_pgtable(struct mm_struct *mm, unsigned long *table) +{ + struct gmap_rmap *rmap, *next; + struct gmap_pgtable *mp; + struct page *page; + int flush; + + flush = 0; + spin_lock(&mm->page_table_lock); + page = pfn_to_page(__pa(table) >> PAGE_SHIFT); + mp = (struct gmap_pgtable *) page->index; + list_for_each_entry_safe(rmap, next, &mp->mapper, list) { + *rmap->entry = + _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO | mp->vmaddr; + list_del(&rmap->list); + kfree(rmap); + flush = 1; + } + spin_unlock(&mm->page_table_lock); + if (flush) + __tlb_flush_global(); +} + +/* + * this function is assumed to be called with mmap_sem held + */ +unsigned long __gmap_fault(unsigned long address, struct gmap *gmap) +{ + unsigned long *segment_ptr, segment; + struct gmap_pgtable *mp; + struct page *page; + int rc; + + current->thread.gmap_addr = address; + segment_ptr = gmap_table_walk(address, gmap); + if (IS_ERR(segment_ptr)) + return -EFAULT; + /* Convert the gmap address to an mm address. */ + while (1) { + segment = *segment_ptr; + if (!(segment & _SEGMENT_ENTRY_INV)) { + /* Page table is present */ + page = pfn_to_page(segment >> PAGE_SHIFT); + mp = (struct gmap_pgtable *) page->index; + return mp->vmaddr | (address & ~PMD_MASK); + } + if (!(segment & _SEGMENT_ENTRY_RO)) + /* Nothing mapped in the gmap address space. */ + break; + rc = gmap_connect_pgtable(segment, segment_ptr, gmap); + if (rc) + return rc; } return -EFAULT; } @@ -511,29 +619,6 @@ void gmap_discard(unsigned long from, unsigned long to, struct gmap *gmap) } EXPORT_SYMBOL_GPL(gmap_discard); -void gmap_unmap_notifier(struct mm_struct *mm, unsigned long *table) -{ - struct gmap_rmap *rmap, *next; - struct gmap_pgtable *mp; - struct page *page; - int flush; - - flush = 0; - spin_lock(&mm->page_table_lock); - page = pfn_to_page(__pa(table) >> PAGE_SHIFT); - mp = (struct gmap_pgtable *) page->index; - list_for_each_entry_safe(rmap, next, &mp->mapper, list) { - *rmap->entry = - _SEGMENT_ENTRY_INV | _SEGMENT_ENTRY_RO | mp->vmaddr; - list_del(&rmap->list); - kfree(rmap); - flush = 1; - } - spin_unlock(&mm->page_table_lock); - if (flush) - __tlb_flush_global(); -} - static inline unsigned long *page_table_alloc_pgste(struct mm_struct *mm, unsigned long vmaddr) { @@ -586,8 +671,8 @@ static inline void page_table_free_pgste(unsigned long *table) { } -static inline void gmap_unmap_notifier(struct mm_struct *mm, - unsigned long *table) +static inline void gmap_disconnect_pgtable(struct mm_struct *mm, + unsigned long *table) { } @@ -653,7 +738,7 @@ void page_table_free(struct mm_struct *mm, unsigned long *table) unsigned int bit, mask; if (mm_has_pgste(mm)) { - gmap_unmap_notifier(mm, table); + gmap_disconnect_pgtable(mm, table); return page_table_free_pgste(table); } /* Free 1K/2K page table fragment of a 4K page */ @@ -696,7 +781,7 @@ void page_table_free_rcu(struct mmu_gather *tlb, unsigned long *table) mm = tlb->mm; if (mm_has_pgste(mm)) { - gmap_unmap_notifier(mm, table); + gmap_disconnect_pgtable(mm, table); table = (unsigned long *) (__pa(table) | FRAG_MASK); tlb_remove_table(tlb, table); return; diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c index ffab84d..3583705 100644 --- a/arch/s390/mm/vmem.c +++ b/arch/s390/mm/vmem.c @@ -191,19 +191,16 @@ static void vmem_remove_range(unsigned long start, unsigned long size) /* * Add a backed mem_map array to the virtual mem_map array. */ -int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node) +int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node) { - unsigned long address, start_addr, end_addr; + unsigned long address = start; pgd_t *pg_dir; pud_t *pu_dir; pmd_t *pm_dir; pte_t *pt_dir; int ret = -ENOMEM; - start_addr = (unsigned long) start; - end_addr = (unsigned long) (start + nr); - - for (address = start_addr; address < end_addr;) { + for (address = start; address < end;) { pg_dir = pgd_offset_k(address); if (pgd_none(*pg_dir)) { pu_dir = vmem_pud_alloc(); @@ -262,14 +259,14 @@ int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node) } address += PAGE_SIZE; } - memset(start, 0, nr * sizeof(struct page)); + memset((void *)start, 0, end - start); ret = 0; out: - flush_tlb_kernel_range(start_addr, end_addr); + flush_tlb_kernel_range(start, end); return ret; } -void vmemmap_free(struct page *memmap, unsigned long nr_pages) +void vmemmap_free(unsigned long start, unsigned long end) { } diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c index 0972e91..82f165f 100644 --- a/arch/s390/net/bpf_jit_comp.c +++ b/arch/s390/net/bpf_jit_comp.c @@ -747,10 +747,9 @@ void bpf_jit_compile(struct sk_filter *fp) if (!bpf_jit_enable) return; - addrs = kmalloc(fp->len * sizeof(*addrs), GFP_KERNEL); + addrs = kcalloc(fp->len, sizeof(*addrs), GFP_KERNEL); if (addrs == NULL) return; - memset(addrs, 0, fp->len * sizeof(*addrs)); memset(&jit, 0, sizeof(cjit)); memset(&cjit, 0, sizeof(cjit)); diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c index 584b936..ffeb17c 100644 --- a/arch/s390/oprofile/init.c +++ b/arch/s390/oprofile/init.c @@ -440,6 +440,7 @@ static int oprofile_hwsampler_init(struct oprofile_operations *ops) switch (id.machine) { case 0x2097: case 0x2098: ops->cpu_type = "s390/z10"; break; case 0x2817: case 0x2818: ops->cpu_type = "s390/z196"; break; + case 0x2827: ops->cpu_type = "s390/zEC12"; break; default: return -ENODEV; } } diff --git a/arch/s390/pci/Makefile b/arch/s390/pci/Makefile index f0f426a..086a2e3 100644 --- a/arch/s390/pci/Makefile +++ b/arch/s390/pci/Makefile @@ -2,5 +2,5 @@ # Makefile for the s390 PCI subsystem. # -obj-$(CONFIG_PCI) += pci.o pci_dma.o pci_clp.o pci_msi.o \ - pci_sysfs.o pci_event.o pci_debug.o +obj-$(CONFIG_PCI) += pci.o pci_dma.o pci_clp.o pci_msi.o pci_sysfs.o \ + pci_event.o pci_debug.o pci_insn.o diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 27b4c17..e6f15b5 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -99,9 +99,6 @@ static int __read_mostly aisb_max; static struct kmem_cache *zdev_irq_cache; static struct kmem_cache *zdev_fmb_cache; -debug_info_t *pci_debug_msg_id; -debug_info_t *pci_debug_err_id; - static inline int irq_to_msi_nr(unsigned int irq) { return irq & ZPCI_MSI_MASK; @@ -179,7 +176,7 @@ static int zpci_register_airq(struct zpci_dev *zdev, unsigned int aisb, fib->aisb = (u64) bucket->aisb + aisb / 8; fib->aisbo = aisb & ZPCI_MSI_MASK; - rc = mpcifc_instr(req, fib); + rc = s390pci_mod_fc(req, fib); pr_debug("%s mpcifc returned noi: %d\n", __func__, fib->noi); free_page((unsigned long) fib); @@ -209,7 +206,7 @@ static int mod_pci(struct zpci_dev *zdev, int fn, u8 dmaas, struct mod_pci_args fib->iota = args->iota; fib->fmb_addr = args->fmb_addr; - rc = mpcifc_instr(req, fib); + rc = s390pci_mod_fc(req, fib); free_page((unsigned long) fib); return rc; } @@ -249,10 +246,9 @@ int zpci_fmb_enable_device(struct zpci_dev *zdev) if (zdev->fmb) return -EINVAL; - zdev->fmb = kmem_cache_alloc(zdev_fmb_cache, GFP_KERNEL); + zdev->fmb = kmem_cache_zalloc(zdev_fmb_cache, GFP_KERNEL); if (!zdev->fmb) return -ENOMEM; - memset(zdev->fmb, 0, sizeof(*zdev->fmb)); WARN_ON((u64) zdev->fmb & 0xf); args.fmb_addr = virt_to_phys(zdev->fmb); @@ -284,12 +280,12 @@ static int zpci_cfg_load(struct zpci_dev *zdev, int offset, u32 *val, u8 len) u64 data; int rc; - rc = pcilg_instr(&data, req, offset); - data = data << ((8 - len) * 8); - data = le64_to_cpu(data); - if (!rc) + rc = s390pci_load(&data, req, offset); + if (!rc) { + data = data << ((8 - len) * 8); + data = le64_to_cpu(data); *val = (u32) data; - else + } else *val = 0xffffffff; return rc; } @@ -302,7 +298,7 @@ static int zpci_cfg_store(struct zpci_dev *zdev, int offset, u32 val, u8 len) data = cpu_to_le64(data); data = data >> ((8 - len) * 8); - rc = pcistg_instr(data, req, offset); + rc = s390pci_store(data, req, offset); return rc; } @@ -409,20 +405,28 @@ static int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val) { struct zpci_dev *zdev = get_zdev_by_bus(bus); + int ret; if (!zdev || devfn != ZPCI_DEVFN) - return 0; - return zpci_cfg_load(zdev, where, val, size); + ret = -ENODEV; + else + ret = zpci_cfg_load(zdev, where, val, size); + + return ret; } static int pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val) { struct zpci_dev *zdev = get_zdev_by_bus(bus); + int ret; if (!zdev || devfn != ZPCI_DEVFN) - return 0; - return zpci_cfg_store(zdev, where, val, size); + ret = -ENODEV; + else + ret = zpci_cfg_store(zdev, where, val, size); + + return ret; } static struct pci_ops pci_root_ops = { @@ -474,7 +478,7 @@ scan: } /* enable interrupts again */ - sic_instr(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC); + set_irq_ctrl(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC); /* check again to not lose initiative */ rmb(); @@ -596,19 +600,6 @@ static void zpci_map_resources(struct zpci_dev *zdev) } }; -static void zpci_unmap_resources(struct pci_dev *pdev) -{ - resource_size_t len; - int i; - - for (i = 0; i < PCI_BAR_COUNT; i++) { - len = pci_resource_len(pdev, i); - if (!len) - continue; - pci_iounmap(pdev, (void *) pdev->resource[i].start); - } -}; - struct zpci_dev *zpci_alloc_device(void) { struct zpci_dev *zdev; @@ -636,32 +627,6 @@ void zpci_free_device(struct zpci_dev *zdev) kfree(zdev); } -/* Called on removal of pci_dev, leaves zpci and bus device */ -static void zpci_remove_device(struct pci_dev *pdev) -{ - struct zpci_dev *zdev = get_zdev(pdev); - - dev_info(&pdev->dev, "Removing device %u\n", zdev->domain); - zdev->state = ZPCI_FN_STATE_CONFIGURED; - zpci_dma_exit_device(zdev); - zpci_fmb_disable_device(zdev); - zpci_sysfs_remove_device(&pdev->dev); - zpci_unmap_resources(pdev); - list_del(&zdev->entry); /* can be called from init */ - zdev->pdev = NULL; -} - -static void zpci_scan_devices(void) -{ - struct zpci_dev *zdev; - - mutex_lock(&zpci_list_lock); - list_for_each_entry(zdev, &zpci_list, entry) - if (zdev->state == ZPCI_FN_STATE_CONFIGURED) - zpci_scan_device(zdev); - mutex_unlock(&zpci_list_lock); -} - /* * Too late for any s390 specific setup, since interrupts must be set up * already which requires DMA setup too and the pci scan will access the @@ -688,12 +653,6 @@ int pcibios_enable_device(struct pci_dev *pdev, int mask) return 0; } -void pcibios_disable_device(struct pci_dev *pdev) -{ - zpci_remove_device(pdev); - pdev->sysdata = NULL; -} - int pcibios_add_platform_entries(struct pci_dev *pdev) { return zpci_sysfs_add_device(&pdev->dev); @@ -789,7 +748,7 @@ static int __init zpci_irq_init(void) spin_lock_init(&bucket->lock); /* set summary to 1 to be called every time for the ISC */ *zpci_irq_si = 1; - sic_instr(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC); + set_irq_ctrl(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC); return 0; out_ai: @@ -872,7 +831,19 @@ static void zpci_free_iomap(struct zpci_dev *zdev, int entry) spin_unlock(&zpci_iomap_lock); } -static int zpci_create_device_bus(struct zpci_dev *zdev) +int pcibios_add_device(struct pci_dev *pdev) +{ + struct zpci_dev *zdev = get_zdev(pdev); + + zdev->pdev = pdev; + zpci_debug_init_device(zdev); + zpci_fmb_enable_device(zdev); + zpci_map_resources(zdev); + + return 0; +} + +static int zpci_scan_bus(struct zpci_dev *zdev) { struct resource *res; LIST_HEAD(resources); @@ -909,8 +880,8 @@ static int zpci_create_device_bus(struct zpci_dev *zdev) pci_add_resource(&resources, res); } - zdev->bus = pci_create_root_bus(NULL, ZPCI_BUS_NR, &pci_root_ops, - zdev, &resources); + zdev->bus = pci_scan_root_bus(NULL, ZPCI_BUS_NR, &pci_root_ops, + zdev, &resources); if (!zdev->bus) return -EIO; @@ -959,6 +930,13 @@ out: } EXPORT_SYMBOL_GPL(zpci_enable_device); +int zpci_disable_device(struct zpci_dev *zdev) +{ + zpci_dma_exit_device(zdev); + return clp_disable_fh(zdev); +} +EXPORT_SYMBOL_GPL(zpci_disable_device); + int zpci_create_device(struct zpci_dev *zdev) { int rc; @@ -967,9 +945,16 @@ int zpci_create_device(struct zpci_dev *zdev) if (rc) goto out; - rc = zpci_create_device_bus(zdev); + if (zdev->state == ZPCI_FN_STATE_CONFIGURED) { + rc = zpci_enable_device(zdev); + if (rc) + goto out_free; + + zdev->state = ZPCI_FN_STATE_ONLINE; + } + rc = zpci_scan_bus(zdev); if (rc) - goto out_bus; + goto out_disable; mutex_lock(&zpci_list_lock); list_add_tail(&zdev->entry, &zpci_list); @@ -977,21 +962,12 @@ int zpci_create_device(struct zpci_dev *zdev) hotplug_ops->create_slot(zdev); mutex_unlock(&zpci_list_lock); - if (zdev->state == ZPCI_FN_STATE_STANDBY) - return 0; - - rc = zpci_enable_device(zdev); - if (rc) - goto out_start; return 0; -out_start: - mutex_lock(&zpci_list_lock); - list_del(&zdev->entry); - if (hotplug_ops) - hotplug_ops->remove_slot(zdev); - mutex_unlock(&zpci_list_lock); -out_bus: +out_disable: + if (zdev->state == ZPCI_FN_STATE_ONLINE) + zpci_disable_device(zdev); +out_free: zpci_free_domain(zdev); out: return rc; @@ -1016,15 +992,9 @@ int zpci_scan_device(struct zpci_dev *zdev) goto out; } - zpci_debug_init_device(zdev); - zpci_fmb_enable_device(zdev); - zpci_map_resources(zdev); pci_bus_add_devices(zdev->bus); - /* now that pdev was added to the bus mark it as used */ - zdev->state = ZPCI_FN_STATE_ONLINE; return 0; - out: zpci_dma_exit_device(zdev); clp_disable_fh(zdev); @@ -1087,13 +1057,13 @@ void zpci_deregister_hp_ops(void) } EXPORT_SYMBOL_GPL(zpci_deregister_hp_ops); -unsigned int s390_pci_probe = 1; +unsigned int s390_pci_probe; EXPORT_SYMBOL_GPL(s390_pci_probe); char * __init pcibios_setup(char *str) { - if (!strcmp(str, "off")) { - s390_pci_probe = 0; + if (!strcmp(str, "on")) { + s390_pci_probe = 1; return NULL; } return str; @@ -1138,7 +1108,6 @@ static int __init pci_base_init(void) if (rc) goto out_find; - zpci_scan_devices(); return 0; out_find: diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c index f339fe2f..bd34359 100644 --- a/arch/s390/pci/pci_clp.c +++ b/arch/s390/pci/pci_clp.c @@ -13,6 +13,7 @@ #include <linux/err.h> #include <linux/delay.h> #include <linux/pci.h> +#include <asm/pci_debug.h> #include <asm/pci_clp.h> /* @@ -144,6 +145,7 @@ int clp_add_pci_device(u32 fid, u32 fh, int configured) struct zpci_dev *zdev; int rc; + zpci_dbg(3, "add fid:%x, fh:%x, c:%d\n", fid, fh, configured); zdev = zpci_alloc_device(); if (IS_ERR(zdev)) return PTR_ERR(zdev); @@ -204,8 +206,8 @@ static int clp_set_pci_fn(u32 *fh, u8 nr_dma_as, u8 command) if (!rc && rrb->response.hdr.rsp == CLP_RC_OK) *fh = rrb->response.fh; else { - pr_err("Set PCI FN failed with response: %x cc: %d\n", - rrb->response.hdr.rsp, rc); + zpci_dbg(0, "SPF fh:%x, cc:%d, resp:%x\n", *fh, rc, + rrb->response.hdr.rsp); rc = -EIO; } clp_free_block(rrb); @@ -221,6 +223,8 @@ int clp_enable_fh(struct zpci_dev *zdev, u8 nr_dma_as) if (!rc) /* Success -> store enabled handle in zdev */ zdev->fh = fh; + + zpci_dbg(3, "ena fid:%x, fh:%x, rc:%d\n", zdev->fid, zdev->fh, rc); return rc; } @@ -237,9 +241,8 @@ int clp_disable_fh(struct zpci_dev *zdev) if (!rc) /* Success -> store disabled handle in zdev */ zdev->fh = fh; - else - dev_err(&zdev->pdev->dev, - "Failed to disable fn handle: 0x%x\n", fh); + + zpci_dbg(3, "dis fid:%x, fh:%x, rc:%d\n", zdev->fid, zdev->fh, rc); return rc; } diff --git a/arch/s390/pci/pci_debug.c b/arch/s390/pci/pci_debug.c index a5d07bc..771b823 100644 --- a/arch/s390/pci/pci_debug.c +++ b/arch/s390/pci/pci_debug.c @@ -11,12 +11,17 @@ #include <linux/kernel.h> #include <linux/seq_file.h> #include <linux/debugfs.h> +#include <linux/export.h> #include <linux/pci.h> #include <asm/debug.h> #include <asm/pci_dma.h> static struct dentry *debugfs_root; +debug_info_t *pci_debug_msg_id; +EXPORT_SYMBOL_GPL(pci_debug_msg_id); +debug_info_t *pci_debug_err_id; +EXPORT_SYMBOL_GPL(pci_debug_err_id); static char *pci_perf_names[] = { /* hardware counters */ @@ -168,7 +173,6 @@ int __init zpci_debug_init(void) return -EINVAL; debug_register_view(pci_debug_msg_id, &debug_sprintf_view); debug_set_level(pci_debug_msg_id, 3); - zpci_dbg("Debug view initialized\n"); /* error log */ pci_debug_err_id = debug_register("pci_error", 2, 1, 16); @@ -176,7 +180,6 @@ int __init zpci_debug_init(void) return -EINVAL; debug_register_view(pci_debug_err_id, &debug_hex_ascii_view); debug_set_level(pci_debug_err_id, 6); - zpci_err("Debug view initialized\n"); debugfs_root = debugfs_create_dir("pci", NULL); return 0; diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c index a547419..f8e69d5 100644 --- a/arch/s390/pci/pci_dma.c +++ b/arch/s390/pci/pci_dma.c @@ -169,8 +169,9 @@ static int dma_update_trans(struct zpci_dev *zdev, unsigned long pa, * needs to be redone! */ goto no_refresh; - rc = rpcit_instr((u64) zdev->fh << 32, start_dma_addr, - nr_pages * PAGE_SIZE); + + rc = s390pci_refresh_trans((u64) zdev->fh << 32, start_dma_addr, + nr_pages * PAGE_SIZE); no_refresh: spin_unlock_irqrestore(&zdev->dma_table_lock, irq_flags); @@ -268,8 +269,6 @@ static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page, int flags = ZPCI_PTE_VALID; dma_addr_t dma_addr; - WARN_ON_ONCE(offset > PAGE_SIZE); - /* This rounds up number of pages based on size and offset */ nr_pages = iommu_num_pages(pa, size, PAGE_SIZE); iommu_page_index = dma_alloc_iommu(zdev, nr_pages); @@ -291,7 +290,7 @@ static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page, if (!dma_update_trans(zdev, pa, dma_addr, size, flags)) { atomic64_add(nr_pages, (atomic64_t *) &zdev->fmb->mapped_pages); - return dma_addr + offset; + return dma_addr + (offset & ~PAGE_MASK); } out_free: diff --git a/arch/s390/pci/pci_insn.c b/arch/s390/pci/pci_insn.c new file mode 100644 index 0000000..22eeb9d --- /dev/null +++ b/arch/s390/pci/pci_insn.c @@ -0,0 +1,202 @@ +/* + * s390 specific pci instructions + * + * Copyright IBM Corp. 2013 + */ + +#include <linux/export.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <asm/pci_insn.h> +#include <asm/processor.h> + +#define ZPCI_INSN_BUSY_DELAY 1 /* 1 microsecond */ + +/* Modify PCI Function Controls */ +static inline u8 __mpcifc(u64 req, struct zpci_fib *fib, u8 *status) +{ + u8 cc; + + asm volatile ( + " .insn rxy,0xe300000000d0,%[req],%[fib]\n" + " ipm %[cc]\n" + " srl %[cc],28\n" + : [cc] "=d" (cc), [req] "+d" (req), [fib] "+Q" (*fib) + : : "cc"); + *status = req >> 24 & 0xff; + return cc; +} + +int s390pci_mod_fc(u64 req, struct zpci_fib *fib) +{ + u8 cc, status; + + do { + cc = __mpcifc(req, fib, &status); + if (cc == 2) + msleep(ZPCI_INSN_BUSY_DELAY); + } while (cc == 2); + + if (cc) + printk_once(KERN_ERR "%s: error cc: %d status: %d\n", + __func__, cc, status); + return (cc) ? -EIO : 0; +} + +/* Refresh PCI Translations */ +static inline u8 __rpcit(u64 fn, u64 addr, u64 range, u8 *status) +{ + register u64 __addr asm("2") = addr; + register u64 __range asm("3") = range; + u8 cc; + + asm volatile ( + " .insn rre,0xb9d30000,%[fn],%[addr]\n" + " ipm %[cc]\n" + " srl %[cc],28\n" + : [cc] "=d" (cc), [fn] "+d" (fn) + : [addr] "d" (__addr), "d" (__range) + : "cc"); + *status = fn >> 24 & 0xff; + return cc; +} + +int s390pci_refresh_trans(u64 fn, u64 addr, u64 range) +{ + u8 cc, status; + + do { + cc = __rpcit(fn, addr, range, &status); + if (cc == 2) + udelay(ZPCI_INSN_BUSY_DELAY); + } while (cc == 2); + + if (cc) + printk_once(KERN_ERR "%s: error cc: %d status: %d dma_addr: %Lx size: %Lx\n", + __func__, cc, status, addr, range); + return (cc) ? -EIO : 0; +} + +/* Set Interruption Controls */ +void set_irq_ctrl(u16 ctl, char *unused, u8 isc) +{ + asm volatile ( + " .insn rsy,0xeb00000000d1,%[ctl],%[isc],%[u]\n" + : : [ctl] "d" (ctl), [isc] "d" (isc << 27), [u] "Q" (*unused)); +} + +/* PCI Load */ +static inline int __pcilg(u64 *data, u64 req, u64 offset, u8 *status) +{ + register u64 __req asm("2") = req; + register u64 __offset asm("3") = offset; + int cc = -ENXIO; + u64 __data; + + asm volatile ( + " .insn rre,0xb9d20000,%[data],%[req]\n" + "0: ipm %[cc]\n" + " srl %[cc],28\n" + "1:\n" + EX_TABLE(0b, 1b) + : [cc] "+d" (cc), [data] "=d" (__data), [req] "+d" (__req) + : "d" (__offset) + : "cc"); + *status = __req >> 24 & 0xff; + if (!cc) + *data = __data; + + return cc; +} + +int s390pci_load(u64 *data, u64 req, u64 offset) +{ + u8 status; + int cc; + + do { + cc = __pcilg(data, req, offset, &status); + if (cc == 2) + udelay(ZPCI_INSN_BUSY_DELAY); + } while (cc == 2); + + if (cc) + printk_once(KERN_ERR "%s: error cc: %d status: %d req: %Lx offset: %Lx\n", + __func__, cc, status, req, offset); + return (cc > 0) ? -EIO : cc; +} +EXPORT_SYMBOL_GPL(s390pci_load); + +/* PCI Store */ +static inline int __pcistg(u64 data, u64 req, u64 offset, u8 *status) +{ + register u64 __req asm("2") = req; + register u64 __offset asm("3") = offset; + int cc = -ENXIO; + + asm volatile ( + " .insn rre,0xb9d00000,%[data],%[req]\n" + "0: ipm %[cc]\n" + " srl %[cc],28\n" + "1:\n" + EX_TABLE(0b, 1b) + : [cc] "+d" (cc), [req] "+d" (__req) + : "d" (__offset), [data] "d" (data) + : "cc"); + *status = __req >> 24 & 0xff; + return cc; +} + +int s390pci_store(u64 data, u64 req, u64 offset) +{ + u8 status; + int cc; + + do { + cc = __pcistg(data, req, offset, &status); + if (cc == 2) + udelay(ZPCI_INSN_BUSY_DELAY); + } while (cc == 2); + + if (cc) + printk_once(KERN_ERR "%s: error cc: %d status: %d req: %Lx offset: %Lx\n", + __func__, cc, status, req, offset); + return (cc > 0) ? -EIO : cc; +} +EXPORT_SYMBOL_GPL(s390pci_store); + +/* PCI Store Block */ +static inline int __pcistb(const u64 *data, u64 req, u64 offset, u8 *status) +{ + int cc = -ENXIO; + + asm volatile ( + " .insn rsy,0xeb00000000d0,%[req],%[offset],%[data]\n" + "0: ipm %[cc]\n" + " srl %[cc],28\n" + "1:\n" + EX_TABLE(0b, 1b) + : [cc] "+d" (cc), [req] "+d" (req) + : [offset] "d" (offset), [data] "Q" (*data) + : "cc"); + *status = req >> 24 & 0xff; + return cc; +} + +int s390pci_store_block(const u64 *data, u64 req, u64 offset) +{ + u8 status; + int cc; + + do { + cc = __pcistb(data, req, offset, &status); + if (cc == 2) + udelay(ZPCI_INSN_BUSY_DELAY); + } while (cc == 2); + + if (cc) + printk_once(KERN_ERR "%s: error cc: %d status: %d req: %Lx offset: %Lx\n", + __func__, cc, status, req, offset); + return (cc > 0) ? -EIO : cc; +} +EXPORT_SYMBOL_GPL(s390pci_store_block); diff --git a/arch/s390/pci/pci_msi.c b/arch/s390/pci/pci_msi.c index 0297931..b097aed 100644 --- a/arch/s390/pci/pci_msi.c +++ b/arch/s390/pci/pci_msi.c @@ -18,8 +18,9 @@ /* mapping of irq numbers to msi_desc */ static struct hlist_head *msi_hash; -static unsigned int msihash_shift = 6; -#define msi_hashfn(nr) hash_long(nr, msihash_shift) +static const unsigned int msi_hash_bits = 8; +#define MSI_HASH_BUCKETS (1U << msi_hash_bits) +#define msi_hashfn(nr) hash_long(nr, msi_hash_bits) static DEFINE_SPINLOCK(msi_map_lock); @@ -74,6 +75,7 @@ int zpci_setup_msi_irq(struct zpci_dev *zdev, struct msi_desc *msi, map->irq = nr; map->msi = msi; zdev->msi_map[nr & ZPCI_MSI_MASK] = map; + INIT_HLIST_NODE(&map->msi_chain); pr_debug("%s hashing irq: %u to bucket nr: %llu\n", __func__, nr, msi_hashfn(nr)); @@ -125,11 +127,11 @@ int __init zpci_msihash_init(void) { unsigned int i; - msi_hash = kmalloc(256 * sizeof(*msi_hash), GFP_KERNEL); + msi_hash = kmalloc(MSI_HASH_BUCKETS * sizeof(*msi_hash), GFP_KERNEL); if (!msi_hash) return -ENOMEM; - for (i = 0; i < (1U << msihash_shift); i++) + for (i = 0; i < MSI_HASH_BUCKETS; i++) INIT_HLIST_HEAD(&msi_hash[i]); return 0; } diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c index 7956846..f4c6d02 100644 --- a/arch/score/kernel/process.c +++ b/arch/score/kernel/process.c @@ -41,24 +41,6 @@ void machine_halt(void) {} /* If or when software machine-power-off is implemented, add code here. */ void machine_power_off(void) {} -/* - * 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 __noreturn cpu_idle(void) -{ - /* endless idle loop with no priority at all */ - while (1) { - rcu_idle_enter(); - while (!need_resched()) - barrier(); - rcu_idle_exit(); - schedule_preempt_disabled(); - } -} - void ret_from_fork(void); void ret_from_kernel_thread(void); diff --git a/arch/score/kernel/traps.c b/arch/score/kernel/traps.c index 0e46fb1..1517a7d 100644 --- a/arch/score/kernel/traps.c +++ b/arch/score/kernel/traps.c @@ -117,6 +117,8 @@ static void show_code(unsigned int *pc) */ void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_DEFAULT); + printk("r0 : %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n", regs->regs[0], regs->regs[1], regs->regs[2], regs->regs[3], regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]); @@ -149,16 +151,6 @@ static void show_registers(struct pt_regs *regs) printk(KERN_NOTICE "\n"); } -/* - * The architecture-independent dump_stack generator - */ -void dump_stack(void) -{ - show_stack(current_thread_info()->task, - (long *) get_irq_regs()->regs[0]); -} -EXPORT_SYMBOL(dump_stack); - void __die(const char *str, struct pt_regs *regs, const char *file, const char *func, unsigned long line) { diff --git a/arch/score/mm/init.c b/arch/score/mm/init.c index cee6bce..1592aad 100644 --- a/arch/score/mm/init.c +++ b/arch/score/mm/init.c @@ -43,7 +43,7 @@ EXPORT_SYMBOL_GPL(empty_zero_page); static struct kcore_list kcore_mem, kcore_vmalloc; -static unsigned long setup_zero_page(void) +static void setup_zero_page(void) { struct page *page; @@ -52,9 +52,7 @@ static unsigned long setup_zero_page(void) panic("Oh boy, that early out of memory?"); page = virt_to_page((void *) empty_zero_page); - SetPageReserved(page); - - return 1UL; + mark_page_reserved(page); } #ifndef CONFIG_NEED_MULTIPLE_NODES @@ -84,7 +82,7 @@ void __init mem_init(void) high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT); totalram_pages += free_all_bootmem(); - totalram_pages -= setup_zero_page(); /* Setup zeroed pages. */ + setup_zero_page(); /* Setup zeroed pages. */ reservedpages = 0; for (tmp = 0; tmp < max_low_pfn; tmp++) @@ -109,37 +107,16 @@ void __init mem_init(void) } #endif /* !CONFIG_NEED_MULTIPLE_NODES */ -static void free_init_pages(const char *what, unsigned long begin, unsigned long end) -{ - unsigned long pfn; - - for (pfn = PFN_UP(begin); pfn < PFN_DOWN(end); pfn++) { - struct page *page = pfn_to_page(pfn); - void *addr = phys_to_virt(PFN_PHYS(pfn)); - - ClearPageReserved(page); - init_page_count(page); - memset(addr, POISON_FREE_INITMEM, PAGE_SIZE); - __free_page(page); - totalram_pages++; - } - printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10); -} - #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_init_pages("initrd memory", - virt_to_phys((void *) start), - virt_to_phys((void *) end)); + free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd"); } #endif void __init_refok free_initmem(void) { - free_init_pages("unused kernel memory", - __pa(&__init_begin), - __pa(&__init_end)); + free_initmem_default(POISON_FREE_INITMEM); } unsigned long pgd_current; diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 5e85963..78d8ace 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -33,6 +33,7 @@ config SUPERH select GENERIC_ATOMIC64 select GENERIC_IRQ_SHOW select GENERIC_SMP_IDLE_THREAD + select GENERIC_IDLE_POLL_SETUP select GENERIC_CLOCKEVENTS select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST select GENERIC_STRNCPY_FROM_USER @@ -148,9 +149,6 @@ config ARCH_HAS_ILOG2_U32 config ARCH_HAS_ILOG2_U64 def_bool n -config ARCH_HAS_DEFAULT_IDLE - def_bool y - config NO_IOPORT def_bool !PCI depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \ @@ -624,25 +622,7 @@ config SH_CLK_CPG_LEGACY endmenu menu "CPU Frequency scaling" - source "drivers/cpufreq/Kconfig" - -config SH_CPU_FREQ - tristate "SuperH CPU Frequency driver" - depends on CPU_FREQ - select CPU_FREQ_TABLE - help - This adds the cpufreq driver for SuperH. Any CPU that supports - clock rate rounding through the clock framework can use this - driver. While it will make the kernel slightly larger, this is - harmless for CPUs that don't support rate rounding. The driver - will also generate a notice in the boot log before disabling - itself if the CPU in question is not capable of rate rounding. - - For details, take a look at <file:Documentation/cpu-freq>. - - If unsure, say N. - endmenu source "arch/sh/drivers/Kconfig" diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c index aaff767..764530c 100644 --- a/arch/sh/boards/mach-ecovec24/setup.c +++ b/arch/sh/boards/mach-ecovec24/setup.c @@ -254,11 +254,13 @@ static int usbhs_get_id(struct platform_device *pdev) return gpio_get_value(GPIO_PTB3); } -static void usbhs_phy_reset(struct platform_device *pdev) +static int usbhs_phy_reset(struct platform_device *pdev) { /* enable vbus if HOST */ if (!gpio_get_value(GPIO_PTB3)) gpio_set_value(GPIO_PTB5, 1); + + return 0; } static struct renesas_usbhs_platform_info usbhs_info = { diff --git a/arch/sh/drivers/pci/pcie-sh7786.c b/arch/sh/drivers/pci/pcie-sh7786.c index c2c85f6..a162a7f 100644 --- a/arch/sh/drivers/pci/pcie-sh7786.c +++ b/arch/sh/drivers/pci/pcie-sh7786.c @@ -35,7 +35,7 @@ static unsigned int nr_ports; static struct sh7786_pcie_hwops { int (*core_init)(void); - async_func_ptr *port_init_hw; + async_func_t port_init_hw; } *sh7786_pcie_hwops; static struct resource sh7786_pci0_resources[] = { diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h index b3808c7..699255d 100644 --- a/arch/sh/include/asm/hugetlb.h +++ b/arch/sh/include/asm/hugetlb.h @@ -3,6 +3,7 @@ #include <asm/cacheflush.h> #include <asm/page.h> +#include <asm-generic/hugetlb.h> static inline int is_hugepage_only_range(struct mm_struct *mm, diff --git a/arch/sh/include/asm/suspend.h b/arch/sh/include/asm/suspend.h index e14567a..70ae0b2 100644 --- a/arch/sh/include/asm/suspend.h +++ b/arch/sh/include/asm/suspend.h @@ -14,9 +14,9 @@ struct swsusp_arch_regs { void sh_mobile_call_standby(unsigned long mode); #ifdef CONFIG_CPU_IDLE -void sh_mobile_setup_cpuidle(void); +int sh_mobile_setup_cpuidle(void); #else -static inline void sh_mobile_setup_cpuidle(void) {} +static inline int sh_mobile_setup_cpuidle(void) { return 0; } #endif /* notifier chains for pre/post sleep hooks */ diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h index 7d5ac4e..45a9366 100644 --- a/arch/sh/include/asm/thread_info.h +++ b/arch/sh/include/asm/thread_info.h @@ -207,8 +207,6 @@ static inline bool test_and_clear_restore_sigmask(void) return true; } -#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) - #endif /* !__ASSEMBLY__ */ #endif /* __KERNEL__ */ diff --git a/arch/sh/include/asm/unistd.h b/arch/sh/include/asm/unistd.h index 5e90fa2..e77816c 100644 --- a/arch/sh/include/asm/unistd.h +++ b/arch/sh/include/asm/unistd.h @@ -30,12 +30,4 @@ # define __ARCH_WANT_SYS_VFORK # define __ARCH_WANT_SYS_CLONE -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -# define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") - #include <uapi/asm/unistd.h> diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile index f259b37..261c8bf 100644 --- a/arch/sh/kernel/Makefile +++ b/arch/sh/kernel/Makefile @@ -31,7 +31,6 @@ obj-$(CONFIG_VSYSCALL) += vsyscall/ obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_SH_STANDARD_BIOS) += sh_bios.o obj-$(CONFIG_KGDB) += kgdb.o -obj-$(CONFIG_SH_CPU_FREQ) += cpufreq.o obj-$(CONFIG_MODULES) += sh_ksyms_$(BITS).o module.o obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o diff --git a/arch/sh/kernel/cpu/shmobile/cpuidle.c b/arch/sh/kernel/cpu/shmobile/cpuidle.c index 1ddc876..d306225 100644 --- a/arch/sh/kernel/cpu/shmobile/cpuidle.c +++ b/arch/sh/kernel/cpu/shmobile/cpuidle.c @@ -51,70 +51,53 @@ static int cpuidle_sleep_enter(struct cpuidle_device *dev, return k; } -static struct cpuidle_device cpuidle_dev; static struct cpuidle_driver cpuidle_driver = { - .name = "sh_idle", - .owner = THIS_MODULE, - .en_core_tk_irqen = 1, + .name = "sh_idle", + .owner = THIS_MODULE, + .states = { + { + .exit_latency = 1, + .target_residency = 1 * 2, + .power_usage = 3, + .flags = CPUIDLE_FLAG_TIME_VALID, + .enter = cpuidle_sleep_enter, + .name = "C1", + .desc = "SuperH Sleep Mode", + }, + { + .exit_latency = 100, + .target_residency = 1 * 2, + .power_usage = 1, + .flags = CPUIDLE_FLAG_TIME_VALID, + .enter = cpuidle_sleep_enter, + .name = "C2", + .desc = "SuperH Sleep Mode [SF]", + .disabled = true, + }, + { + .exit_latency = 2300, + .target_residency = 1 * 2, + .power_usage = 1, + .flags = CPUIDLE_FLAG_TIME_VALID, + .enter = cpuidle_sleep_enter, + .name = "C3", + .desc = "SuperH Mobile Standby Mode [SF]", + .disabled = true, + }, + }, + .safe_state_index = 0, + .state_count = 3, }; -void sh_mobile_setup_cpuidle(void) +int __init sh_mobile_setup_cpuidle(void) { - struct cpuidle_device *dev = &cpuidle_dev; - struct cpuidle_driver *drv = &cpuidle_driver; - struct cpuidle_state *state; - int i; + int ret; + if (sh_mobile_sleep_supported & SUSP_SH_SF) + cpuidle_driver.states[1].disabled = false; - for (i = 0; i < CPUIDLE_STATE_MAX; i++) { - drv->states[i].name[0] = '\0'; - drv->states[i].desc[0] = '\0'; - } + if (sh_mobile_sleep_supported & SUSP_SH_STANDBY) + cpuidle_driver.states[2].disabled = false; - i = CPUIDLE_DRIVER_STATE_START; - - state = &drv->states[i++]; - snprintf(state->name, CPUIDLE_NAME_LEN, "C1"); - strncpy(state->desc, "SuperH Sleep Mode", CPUIDLE_DESC_LEN); - state->exit_latency = 1; - state->target_residency = 1 * 2; - state->power_usage = 3; - state->flags = 0; - state->flags |= CPUIDLE_FLAG_TIME_VALID; - state->enter = cpuidle_sleep_enter; - - drv->safe_state_index = i-1; - - if (sh_mobile_sleep_supported & SUSP_SH_SF) { - state = &drv->states[i++]; - snprintf(state->name, CPUIDLE_NAME_LEN, "C2"); - strncpy(state->desc, "SuperH Sleep Mode [SF]", - CPUIDLE_DESC_LEN); - state->exit_latency = 100; - state->target_residency = 1 * 2; - state->power_usage = 1; - state->flags = 0; - state->flags |= CPUIDLE_FLAG_TIME_VALID; - state->enter = cpuidle_sleep_enter; - } - - if (sh_mobile_sleep_supported & SUSP_SH_STANDBY) { - state = &drv->states[i++]; - snprintf(state->name, CPUIDLE_NAME_LEN, "C3"); - strncpy(state->desc, "SuperH Mobile Standby Mode [SF]", - CPUIDLE_DESC_LEN); - state->exit_latency = 2300; - state->target_residency = 1 * 2; - state->power_usage = 1; - state->flags = 0; - state->flags |= CPUIDLE_FLAG_TIME_VALID; - state->enter = cpuidle_sleep_enter; - } - - drv->state_count = i; - dev->state_count = i; - - cpuidle_register_driver(&cpuidle_driver); - - cpuidle_register_device(dev); + return cpuidle_register(&cpuidle_driver); } diff --git a/arch/sh/kernel/cpu/shmobile/pm.c b/arch/sh/kernel/cpu/shmobile/pm.c index 08d27fa..ac37b72 100644 --- a/arch/sh/kernel/cpu/shmobile/pm.c +++ b/arch/sh/kernel/cpu/shmobile/pm.c @@ -150,8 +150,7 @@ static const struct platform_suspend_ops sh_pm_ops = { static int __init sh_pm_init(void) { suspend_set_ops(&sh_pm_ops); - sh_mobile_setup_cpuidle(); - return 0; + return sh_mobile_setup_cpuidle(); } late_initcall(sh_pm_init); diff --git a/arch/sh/kernel/cpufreq.c b/arch/sh/kernel/cpufreq.c deleted file mode 100644 index e68b45b..0000000 --- a/arch/sh/kernel/cpufreq.c +++ /dev/null @@ -1,201 +0,0 @@ -/* - * arch/sh/kernel/cpufreq.c - * - * cpufreq driver for the SuperH processors. - * - * Copyright (C) 2002 - 2012 Paul Mundt - * Copyright (C) 2002 M. R. Brown - * - * Clock framework bits from arch/avr32/mach-at32ap/cpufreq.c - * - * Copyright (C) 2004-2007 Atmel Corporation - * - * 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. - */ -#define pr_fmt(fmt) "cpufreq: " fmt - -#include <linux/types.h> -#include <linux/cpufreq.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/err.h> -#include <linux/cpumask.h> -#include <linux/cpu.h> -#include <linux/smp.h> -#include <linux/sched.h> /* set_cpus_allowed() */ -#include <linux/clk.h> -#include <linux/percpu.h> -#include <linux/sh_clk.h> - -static DEFINE_PER_CPU(struct clk, sh_cpuclk); - -static unsigned int sh_cpufreq_get(unsigned int cpu) -{ - return (clk_get_rate(&per_cpu(sh_cpuclk, cpu)) + 500) / 1000; -} - -/* - * Here we notify other drivers of the proposed change and the final change. - */ -static int sh_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int cpu = policy->cpu; - struct clk *cpuclk = &per_cpu(sh_cpuclk, cpu); - cpumask_t cpus_allowed; - struct cpufreq_freqs freqs; - struct device *dev; - long freq; - - if (!cpu_online(cpu)) - return -ENODEV; - - cpus_allowed = current->cpus_allowed; - set_cpus_allowed_ptr(current, cpumask_of(cpu)); - - BUG_ON(smp_processor_id() != cpu); - - dev = get_cpu_device(cpu); - - /* Convert target_freq from kHz to Hz */ - freq = clk_round_rate(cpuclk, target_freq * 1000); - - if (freq < (policy->min * 1000) || freq > (policy->max * 1000)) - return -EINVAL; - - dev_dbg(dev, "requested frequency %u Hz\n", target_freq * 1000); - - freqs.cpu = cpu; - freqs.old = sh_cpufreq_get(cpu); - freqs.new = (freq + 500) / 1000; - freqs.flags = 0; - - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - set_cpus_allowed_ptr(current, &cpus_allowed); - clk_set_rate(cpuclk, freq); - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - dev_dbg(dev, "set frequency %lu Hz\n", freq); - - return 0; -} - -static int sh_cpufreq_verify(struct cpufreq_policy *policy) -{ - struct clk *cpuclk = &per_cpu(sh_cpuclk, policy->cpu); - struct cpufreq_frequency_table *freq_table; - - freq_table = cpuclk->nr_freqs ? cpuclk->freq_table : NULL; - if (freq_table) - return cpufreq_frequency_table_verify(policy, freq_table); - - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); - - policy->min = (clk_round_rate(cpuclk, 1) + 500) / 1000; - policy->max = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000; - - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); - - return 0; -} - -static int sh_cpufreq_cpu_init(struct cpufreq_policy *policy) -{ - unsigned int cpu = policy->cpu; - struct clk *cpuclk = &per_cpu(sh_cpuclk, cpu); - struct cpufreq_frequency_table *freq_table; - struct device *dev; - - if (!cpu_online(cpu)) - return -ENODEV; - - dev = get_cpu_device(cpu); - - cpuclk = clk_get(dev, "cpu_clk"); - if (IS_ERR(cpuclk)) { - dev_err(dev, "couldn't get CPU clk\n"); - return PTR_ERR(cpuclk); - } - - policy->cur = policy->min = policy->max = sh_cpufreq_get(cpu); - - freq_table = cpuclk->nr_freqs ? cpuclk->freq_table : NULL; - if (freq_table) { - int result; - - result = cpufreq_frequency_table_cpuinfo(policy, freq_table); - if (!result) - cpufreq_frequency_table_get_attr(freq_table, cpu); - } else { - dev_notice(dev, "no frequency table found, falling back " - "to rate rounding.\n"); - - policy->cpuinfo.min_freq = - (clk_round_rate(cpuclk, 1) + 500) / 1000; - policy->cpuinfo.max_freq = - (clk_round_rate(cpuclk, ~0UL) + 500) / 1000; - } - - policy->min = policy->cpuinfo.min_freq; - policy->max = policy->cpuinfo.max_freq; - - policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - - dev_info(dev, "CPU Frequencies - Minimum %u.%03u MHz, " - "Maximum %u.%03u MHz.\n", - policy->min / 1000, policy->min % 1000, - policy->max / 1000, policy->max % 1000); - - return 0; -} - -static int sh_cpufreq_cpu_exit(struct cpufreq_policy *policy) -{ - unsigned int cpu = policy->cpu; - struct clk *cpuclk = &per_cpu(sh_cpuclk, cpu); - - cpufreq_frequency_table_put_attr(cpu); - clk_put(cpuclk); - - return 0; -} - -static struct freq_attr *sh_freq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - -static struct cpufreq_driver sh_cpufreq_driver = { - .owner = THIS_MODULE, - .name = "sh", - .get = sh_cpufreq_get, - .target = sh_cpufreq_target, - .verify = sh_cpufreq_verify, - .init = sh_cpufreq_cpu_init, - .exit = sh_cpufreq_cpu_exit, - .attr = sh_freq_attr, -}; - -static int __init sh_cpufreq_module_init(void) -{ - pr_notice("SuperH CPU frequency driver.\n"); - return cpufreq_register_driver(&sh_cpufreq_driver); -} - -static void __exit sh_cpufreq_module_exit(void) -{ - cpufreq_unregister_driver(&sh_cpufreq_driver); -} - -module_init(sh_cpufreq_module_init); -module_exit(sh_cpufreq_module_exit); - -MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>"); -MODULE_DESCRIPTION("cpufreq driver for SuperH"); -MODULE_LICENSE("GPL"); diff --git a/arch/sh/kernel/dumpstack.c b/arch/sh/kernel/dumpstack.c index 7617dc4..b959f55 100644 --- a/arch/sh/kernel/dumpstack.c +++ b/arch/sh/kernel/dumpstack.c @@ -158,9 +158,3 @@ void show_stack(struct task_struct *tsk, unsigned long *sp) (unsigned long)task_stack_page(tsk)); show_trace(tsk, sp, NULL); } - -void dump_stack(void) -{ - show_stack(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); diff --git a/arch/sh/kernel/idle.c b/arch/sh/kernel/idle.c index 3d5a1b3..2ea4483 100644 --- a/arch/sh/kernel/idle.c +++ b/arch/sh/kernel/idle.c @@ -24,98 +24,24 @@ static void (*sh_idle)(void); -static int hlt_counter; - -static int __init nohlt_setup(char *__unused) -{ - hlt_counter = 1; - return 1; -} -__setup("nohlt", nohlt_setup); - -static int __init hlt_setup(char *__unused) -{ - hlt_counter = 0; - return 1; -} -__setup("hlt", hlt_setup); - -static inline int hlt_works(void) -{ - return !hlt_counter; -} - -/* - * On SMP it's slightly faster (but much more power-consuming!) - * to poll the ->work.need_resched flag instead of waiting for the - * cross-CPU IPI to arrive. Use this option with caution. - */ -static void poll_idle(void) +void default_idle(void) { + set_bl_bit(); local_irq_enable(); - while (!need_resched()) - cpu_relax(); + /* Isn't this racy ? */ + cpu_sleep(); + clear_bl_bit(); } -void default_idle(void) +void arch_cpu_idle_dead(void) { - if (hlt_works()) { - clear_thread_flag(TIF_POLLING_NRFLAG); - smp_mb__after_clear_bit(); - - set_bl_bit(); - if (!need_resched()) { - local_irq_enable(); - cpu_sleep(); - } else - local_irq_enable(); - - set_thread_flag(TIF_POLLING_NRFLAG); - clear_bl_bit(); - } else - poll_idle(); + play_dead(); } -/* - * 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) +void arch_cpu_idle(void) { - unsigned int cpu = smp_processor_id(); - - set_thread_flag(TIF_POLLING_NRFLAG); - - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - - while (!need_resched()) { - check_pgt_cache(); - rmb(); - - if (cpu_is_offline(cpu)) - play_dead(); - - local_irq_disable(); - /* Don't trace irqs off for idle */ - stop_critical_timings(); - if (cpuidle_idle_call()) - sh_idle(); - /* - * Sanity check to ensure that sh_idle() returns - * with IRQs enabled - */ - WARN_ON(irqs_disabled()); - start_critical_timings(); - } - - rcu_idle_exit(); - tick_nohz_idle_exit(); - schedule_preempt_disabled(); - } + if (cpuidle_idle_call()) + sh_idle(); } void __init select_idle_routine(void) @@ -123,13 +49,8 @@ void __init select_idle_routine(void) /* * If a platform has set its own idle routine, leave it alone. */ - if (sh_idle) - return; - - if (hlt_works()) + if (!sh_idle) sh_idle = default_idle; - else - sh_idle = poll_idle; } void stop_this_cpu(void *unused) diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index 73eb66f..ebd3933 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -32,11 +32,7 @@ void show_regs(struct pt_regs * regs) { printk("\n"); - printk("Pid : %d, Comm: \t\t%s\n", task_pid_nr(current), current->comm); - printk("CPU : %d \t\t%s (%s %.*s)\n\n", - smp_processor_id(), print_tainted(), init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); + show_regs_print_info(KERN_DEFAULT); print_symbol("PC is at %s\n", instruction_pointer(regs)); print_symbol("PR is at %s\n", regs->pr); diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c index e611c85..174d124b 100644 --- a/arch/sh/kernel/process_64.c +++ b/arch/sh/kernel/process_64.c @@ -40,6 +40,7 @@ void show_regs(struct pt_regs *regs) unsigned long long ah, al, bh, bl, ch, cl; printk("\n"); + show_regs_print_info(KERN_DEFAULT); ah = (regs->pc) >> 32; al = (regs->pc) & 0xffffffff; diff --git a/arch/sh/kernel/sh_bios.c b/arch/sh/kernel/sh_bios.c index 47475cc..fe584e5 100644 --- a/arch/sh/kernel/sh_bios.c +++ b/arch/sh/kernel/sh_bios.c @@ -104,6 +104,7 @@ void sh_bios_vbr_reload(void) ); } +#ifdef CONFIG_EARLY_PRINTK /* * Print a string through the BIOS */ @@ -144,8 +145,6 @@ static struct console bios_console = { .index = -1, }; -static struct console *early_console; - static int __init setup_early_printk(char *buf) { int keep_early = 0; @@ -170,3 +169,4 @@ static int __init setup_early_printk(char *buf) return 0; } early_param("earlyprintk", setup_early_printk); +#endif diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c index 2062aa8..4569645 100644 --- a/arch/sh/kernel/smp.c +++ b/arch/sh/kernel/smp.c @@ -203,7 +203,7 @@ asmlinkage void __cpuinit start_secondary(void) set_cpu_online(cpu, true); per_cpu(cpu_state, cpu) = CPU_ONLINE; - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } extern struct { diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index 1057940..20f9ead 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -417,15 +417,13 @@ void __init mem_init(void) for_each_online_node(nid) { pg_data_t *pgdat = NODE_DATA(nid); - unsigned long node_pages = 0; void *node_high_memory; num_physpages += pgdat->node_present_pages; if (pgdat->node_spanned_pages) - node_pages = free_all_bootmem_node(pgdat); + totalram_pages += free_all_bootmem_node(pgdat); - totalram_pages += node_pages; node_high_memory = (void *)__va((pgdat->node_start_pfn + pgdat->node_spanned_pages) << @@ -501,31 +499,13 @@ void __init mem_init(void) void free_initmem(void) { - unsigned long addr; - - addr = (unsigned long)(&__init_begin); - for (; addr < (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("Freeing unused kernel memory: %ldk freed\n", - ((unsigned long)&__init_end - - (unsigned long)&__init_begin) >> 10); + free_initmem_default(0); } #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - unsigned long p; - for (p = start; p < end; p += PAGE_SIZE) { - ClearPageReserved(virt_to_page(p)); - init_page_count(virt_to_page(p)); - free_page(p); - totalram_pages++; - } - printk("Freeing initrd memory: %ldk freed\n", (end - start) >> 10); + free_reserved_area(start, end, 0, "initrd"); } #endif diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 3d361f2..f5041d7 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -62,7 +62,6 @@ config SPARC64 select HAVE_RCU_TABLE_FREE if SMP select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP - select HAVE_SYSCALL_WRAPPERS select HAVE_ARCH_TRANSPARENT_HUGEPAGE select HAVE_DYNAMIC_FTRACE select HAVE_FTRACE_MCOUNT_RECORD @@ -254,29 +253,6 @@ config HOTPLUG_CPU if SPARC64 source "drivers/cpufreq/Kconfig" - -config US3_FREQ - tristate "UltraSPARC-III CPU Frequency driver" - depends on CPU_FREQ - select CPU_FREQ_TABLE - help - This adds the CPUFreq driver for UltraSPARC-III processors. - - For details, take a look at <file:Documentation/cpu-freq>. - - If in doubt, say N. - -config US2E_FREQ - tristate "UltraSPARC-IIe CPU Frequency driver" - depends on CPU_FREQ - select CPU_FREQ_TABLE - help - This adds the CPUFreq driver for UltraSPARC-IIe processors. - - For details, take a look at <file:Documentation/cpu-freq>. - - If in doubt, say N. - endif config US3_MC @@ -407,6 +383,8 @@ config SERIAL_CONSOLE config SPARC_LEON bool "Sparc Leon processor family" depends on SPARC32 + select USB_EHCI_BIG_ENDIAN_MMIO + select USB_EHCI_BIG_ENDIAN_DESC ---help--- If you say Y here if you are running on a SPARC-LEON processor. The LEON processor is a synthesizable VHDL model of the diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h index 7eb57d2..e4cab46 100644 --- a/arch/sparc/include/asm/hugetlb.h +++ b/arch/sparc/include/asm/hugetlb.h @@ -2,6 +2,7 @@ #define _ASM_SPARC64_HUGETLB_H #include <asm/page.h> +#include <asm-generic/hugetlb.h> void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h index 25849ae..dd38075 100644 --- a/arch/sparc/include/asm/thread_info_32.h +++ b/arch/sparc/include/asm/thread_info_32.h @@ -132,8 +132,6 @@ register struct thread_info *current_thread_info_reg asm("g6"); #define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | \ _TIF_SIGPENDING) -#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) - #endif /* __KERNEL__ */ #endif /* _ASM_THREAD_INFO_H */ diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h index 269bd92..d5e5042 100644 --- a/arch/sparc/include/asm/thread_info_64.h +++ b/arch/sparc/include/asm/thread_info_64.h @@ -256,8 +256,6 @@ static inline bool test_and_clear_restore_sigmask(void) return true; } -#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) - #define thread32_stack_is_64bit(__SP) (((__SP) & 0x1) != 0) #define test_thread_64bit_stack(__SP) \ ((test_thread_flag(TIF_32BIT) && !thread32_stack_is_64bit(__SP)) ? \ diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h index 5356810..dfa53fd 100644 --- a/arch/sparc/include/asm/unistd.h +++ b/arch/sparc/include/asm/unistd.h @@ -45,12 +45,4 @@ #define __ARCH_WANT_COMPAT_SYS_SENDFILE #endif -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") - #endif /* _SPARC_UNISTD_H */ diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile index 6cf591b..5276fd4 100644 --- a/arch/sparc/kernel/Makefile +++ b/arch/sparc/kernel/Makefile @@ -102,9 +102,6 @@ obj-$(CONFIG_PCI_MSI) += pci_msi.o obj-$(CONFIG_COMPAT) += sys32.o sys_sparc32.o signal32.o -# sparc64 cpufreq -obj-$(CONFIG_US3_FREQ) += us3_cpufreq.o -obj-$(CONFIG_US2E_FREQ) += us2e_cpufreq.o obj-$(CONFIG_US3_MC) += chmc.o obj-$(CONFIG_KPROBES) += kprobes.o diff --git a/arch/sparc/kernel/hvtramp.S b/arch/sparc/kernel/hvtramp.S index 9365432..605c960 100644 --- a/arch/sparc/kernel/hvtramp.S +++ b/arch/sparc/kernel/hvtramp.S @@ -128,8 +128,7 @@ hv_cpu_startup: call smp_callin nop - call cpu_idle - mov 0, %o0 + call cpu_panic nop diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c index 62eede1..fdd819d 100644 --- a/arch/sparc/kernel/process_32.c +++ b/arch/sparc/kernel/process_32.c @@ -64,23 +64,12 @@ extern void fpsave(unsigned long *, unsigned long *, void *, unsigned long *); struct task_struct *last_task_used_math = NULL; struct thread_info *current_set[NR_CPUS]; -/* - * the idle loop on a Sparc... ;) - */ -void cpu_idle(void) +/* Idle loop support. */ +void arch_cpu_idle(void) { - set_thread_flag(TIF_POLLING_NRFLAG); - - /* endless idle loop with no priority at all */ - for (;;) { - while (!need_resched()) { - if (sparc_idle) - (*sparc_idle)(); - else - cpu_relax(); - } - schedule_preempt_disabled(); - } + if (sparc_idle) + (*sparc_idle)(); + local_irq_enable(); } /* XXX cli/sti -> local_irq_xxx here, check this works once SMP is fixed. */ @@ -123,6 +112,8 @@ void show_regs(struct pt_regs *r) { struct reg_window32 *rw = (struct reg_window32 *) r->u_regs[14]; + show_regs_print_info(KERN_DEFAULT); + printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx %s\n", r->psr, r->pc, r->npc, r->y, print_tainted()); printk("PC: <%pS>\n", (void *) r->pc); @@ -153,11 +144,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) struct reg_window32 *rw; int count = 0; - if (tsk != NULL) - task_base = (unsigned long) task_stack_page(tsk); - else - task_base = (unsigned long) current_thread_info(); + if (!tsk) + tsk = current; + if (tsk == current && !_ksp) + __asm__ __volatile__("mov %%fp, %0" : "=r" (_ksp)); + + task_base = (unsigned long) task_stack_page(tsk); fp = (unsigned long) _ksp; do { /* Bogus frame pointer? */ @@ -173,17 +166,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) printk("\n"); } -void dump_stack(void) -{ - unsigned long *ksp; - - __asm__ __volatile__("mov %%fp, %0" - : "=r" (ksp)); - show_stack(current, ksp); -} - -EXPORT_SYMBOL(dump_stack); - /* * Note: sparc64 has a pretty intricated thread_saved_pc, check it out. */ diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c index cdb80b2..baebab2 100644 --- a/arch/sparc/kernel/process_64.c +++ b/arch/sparc/kernel/process_64.c @@ -52,20 +52,17 @@ #include "kstack.h" -static void sparc64_yield(int cpu) +/* Idle loop support on sparc64. */ +void arch_cpu_idle(void) { if (tlb_type != hypervisor) { touch_nmi_watchdog(); - return; - } - - clear_thread_flag(TIF_POLLING_NRFLAG); - smp_mb__after_clear_bit(); - - while (!need_resched() && !cpu_is_offline(cpu)) { + } else { unsigned long pstate; - /* Disable interrupts. */ + /* The sun4v sleeping code requires that we have PSTATE.IE cleared over + * the cpu sleep hypervisor call. + */ __asm__ __volatile__( "rdpr %%pstate, %0\n\t" "andn %0, %1, %0\n\t" @@ -73,7 +70,7 @@ static void sparc64_yield(int cpu) : "=&r" (pstate) : "i" (PSTATE_IE)); - if (!need_resched() && !cpu_is_offline(cpu)) + if (!need_resched() && !cpu_is_offline(smp_processor_id())) sun4v_cpu_yield(); /* Re-enable interrupts. */ @@ -84,36 +81,16 @@ static void sparc64_yield(int cpu) : "=&r" (pstate) : "i" (PSTATE_IE)); } - - set_thread_flag(TIF_POLLING_NRFLAG); + local_irq_enable(); } -/* The idle loop on sparc64. */ -void cpu_idle(void) -{ - int cpu = smp_processor_id(); - - set_thread_flag(TIF_POLLING_NRFLAG); - - while(1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - - while (!need_resched() && !cpu_is_offline(cpu)) - sparc64_yield(cpu); - - rcu_idle_exit(); - tick_nohz_idle_exit(); - #ifdef CONFIG_HOTPLUG_CPU - if (cpu_is_offline(cpu)) { - sched_preempt_enable_no_resched(); - cpu_play_dead(); - } -#endif - schedule_preempt_disabled(); - } +void arch_cpu_idle_dead() +{ + sched_preempt_enable_no_resched(); + cpu_play_dead(); } +#endif #ifdef CONFIG_COMPAT static void show_regwindow32(struct pt_regs *regs) @@ -186,6 +163,8 @@ static void show_regwindow(struct pt_regs *regs) void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_DEFAULT); + printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x %s\n", regs->tstate, regs->tpc, regs->tnpc, regs->y, print_tainted()); printk("TPC: <%pS>\n", (void *) regs->tpc); @@ -315,7 +294,7 @@ static void sysrq_handle_globreg(int key) static struct sysrq_key_op sparc_globalreg_op = { .handler = sysrq_handle_globreg, - .help_msg = "global-regs(Y)", + .help_msg = "global-regs(y)", .action_msg = "Show Global CPU Regs", }; @@ -385,7 +364,7 @@ static void sysrq_handle_globpmu(int key) static struct sysrq_key_op sparc_globalpmu_op = { .handler = sysrq_handle_globpmu, - .help_msg = "global-pmu(X)", + .help_msg = "global-pmu(x)", .action_msg = "Show Global PMU Regs", }; diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c index 9e7e6d7..e3f2b81 100644 --- a/arch/sparc/kernel/smp_32.c +++ b/arch/sparc/kernel/smp_32.c @@ -369,7 +369,7 @@ void __cpuinit sparc_start_secondary(void *arg) local_irq_enable(); wmb(); - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); /* We should never reach here! */ BUG(); diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index ca64d2a..77539ed 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -127,6 +127,8 @@ void __cpuinit smp_callin(void) /* idle thread is expected to have preempt disabled */ preempt_disable(); + + cpu_startup_entry(CPUHP_ONLINE); } void cpu_panic(void) diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S index 240a3ce..2e680b5 100644 --- a/arch/sparc/kernel/sys32.S +++ b/arch/sparc/kernel/sys32.S @@ -36,7 +36,6 @@ STUB: sra REG1, 0, REG1; \ jmpl %g1 + %lo(SYSCALL), %g0; \ sra REG3, 0, REG3 -SIGN1(sys32_getrusage, compat_sys_getrusage, %o0) SIGN1(sys32_readahead, compat_sys_readahead, %o0) SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4) SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5) @@ -46,12 +45,9 @@ SIGN1(sys32_io_submit, compat_sys_io_submit, %o1) SIGN1(sys32_mq_open, compat_sys_mq_open, %o1) SIGN1(sys32_select, compat_sys_select, %o0) SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5) -SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1) SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0) SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0) SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0) -SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) -SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) .globl sys32_mmap2 sys32_mmap2: diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c index f38f228..3d0ddbc 100644 --- a/arch/sparc/kernel/sys_sparc32.c +++ b/arch/sparc/kernel/sys_sparc32.c @@ -49,71 +49,6 @@ #include <asm/mmu_context.h> #include <asm/compat_signal.h> -#ifdef CONFIG_SYSVIPC -asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth) -{ - int version; - - version = call >> 16; /* hack for backward compatibility */ - call &= 0xffff; - - switch (call) { - case SEMTIMEDOP: - if (fifth) - /* sign extend semid */ - return compat_sys_semtimedop((int)first, - compat_ptr(ptr), second, - compat_ptr(fifth)); - /* else fall through for normal semop() */ - case SEMOP: - /* struct sembuf is the same on 32 and 64bit :)) */ - /* sign extend semid */ - return sys_semtimedop((int)first, compat_ptr(ptr), second, - NULL); - case SEMGET: - /* sign extend key, nsems */ - return sys_semget((int)first, (int)second, third); - case SEMCTL: - /* sign extend semid, semnum */ - return compat_sys_semctl((int)first, (int)second, third, - compat_ptr(ptr)); - - case MSGSND: - /* sign extend msqid */ - return compat_sys_msgsnd((int)first, (int)second, third, - compat_ptr(ptr)); - case MSGRCV: - /* sign extend msqid, msgtyp */ - return compat_sys_msgrcv((int)first, second, (int)fifth, - third, version, compat_ptr(ptr)); - case MSGGET: - /* sign extend key */ - return sys_msgget((int)first, second); - case MSGCTL: - /* sign extend msqid */ - return compat_sys_msgctl((int)first, second, compat_ptr(ptr)); - - case SHMAT: - /* sign extend shmid */ - return compat_sys_shmat((int)first, second, third, version, - compat_ptr(ptr)); - case SHMDT: - return sys_shmdt(compat_ptr(ptr)); - case SHMGET: - /* sign extend key_t */ - return sys_shmget((int)first, second, third); - case SHMCTL: - /* sign extend shmid */ - return compat_sys_shmctl((int)first, second, compat_ptr(ptr)); - - default: - return -ENOSYS; - } - - return -ENOSYS; -} -#endif - asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low) { if ((int)high < 0) @@ -303,15 +238,7 @@ long compat_sys_fadvise64_64(int fd, advice); } -long sys32_lookup_dcookie(unsigned long cookie_high, - unsigned long cookie_low, - char __user *buf, size_t len) -{ - return sys_lookup_dcookie((cookie_high << 32) | cookie_low, - buf, len); -} - -long compat_sync_file_range(int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, int flags) +long sys32_sync_file_range(unsigned int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, unsigned int flags) { return sys_sync_file_range(fd, (off_high << 32) | off_low, diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index 708bc29..2daaaa6 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -353,7 +353,7 @@ SYSCALL_DEFINE6(sparc_ipc, unsigned int, call, int, first, unsigned long, second case SEMCTL: { err = sys_semctl(first, second, (int)third | IPC_64, - (union semun) ptr); + (unsigned long) ptr); goto out; } default: @@ -470,10 +470,6 @@ SYSCALL_DEFINE2(64_munmap, unsigned long, addr, size_t, len) return vm_munmap(addr, len); } - -extern unsigned long do_mremap(unsigned long addr, - unsigned long old_len, unsigned long new_len, - unsigned long flags, unsigned long new_addr); SYSCALL_DEFINE5(64_mremap, unsigned long, addr, unsigned long, old_len, unsigned long, new_len, unsigned long, flags, diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 0881348..8fd9320 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -23,9 +23,9 @@ sys_call_table32: /*10*/ .word sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys_mknod /*15*/ .word sys_chmod, sys_lchown16, sys_brk, sys_nis_syscall, compat_sys_lseek /*20*/ .word sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16 -/*25*/ .word sys32_vmsplice, compat_sys_ptrace, sys_alarm, compat_sys_sigaltstack, sys_pause +/*25*/ .word compat_sys_vmsplice, compat_sys_ptrace, sys_alarm, compat_sys_sigaltstack, sys_pause /*30*/ .word compat_sys_utime, sys_lchown, sys_fchown, sys_access, sys_nice - .word sys_chown, sys_sync, sys_kill, compat_sys_newstat, sys32_sendfile + .word sys_chown, sys_sync, sys_kill, compat_sys_newstat, compat_sys_sendfile /*40*/ .word compat_sys_newlstat, sys_dup, sys_sparc_pipe, compat_sys_times, sys_getuid .word sys_umount, sys_setgid16, sys_getgid16, sys_signal, sys_geteuid16 /*50*/ .word sys_getegid16, sys_acct, sys_nis_syscall, sys_getgid, compat_sys_ioctl @@ -41,7 +41,7 @@ sys_call_table32: /*100*/ .word sys_getpriority, sys32_rt_sigreturn, compat_sys_rt_sigaction, compat_sys_rt_sigprocmask, compat_sys_rt_sigpending .word compat_sys_rt_sigtimedwait, compat_sys_rt_sigqueueinfo, compat_sys_rt_sigsuspend, sys_setresuid, sys_getresuid /*110*/ .word sys_setresgid, sys_getresgid, sys_setregid, sys_nis_syscall, sys_nis_syscall - .word sys_getgroups, compat_sys_gettimeofday, sys32_getrusage, sys_nis_syscall, sys_getcwd + .word sys_getgroups, compat_sys_gettimeofday, compat_sys_getrusage, sys_nis_syscall, sys_getcwd /*120*/ .word compat_sys_readv, compat_sys_writev, compat_sys_settimeofday, sys_fchown16, sys_fchmod .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, compat_sys_truncate /*130*/ .word compat_sys_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall @@ -59,7 +59,7 @@ sys_call_table32: /*190*/ .word sys_init_module, sys_sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl .word sys_epoll_wait, sys_ioprio_set, sys_getppid, compat_sys_sparc_sigaction, sys_sgetmask /*200*/ .word sys_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir - .word sys32_readahead, sys32_socketcall, sys_syslog, sys32_lookup_dcookie, sys32_fadvise64 + .word sys32_readahead, sys32_socketcall, sys_syslog, compat_sys_lookup_dcookie, sys32_fadvise64 /*210*/ .word sys32_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, compat_sys_sysinfo .word compat_sys_ipc, sys32_sigreturn, sys_clone, sys_ioprio_get, compat_sys_adjtimex /*220*/ .word compat_sys_sigprocmask, sys_ni_syscall, sys_delete_module, sys_ni_syscall, sys_getpgid diff --git a/arch/sparc/kernel/trampoline_64.S b/arch/sparc/kernel/trampoline_64.S index da1b781..2e973a2 100644 --- a/arch/sparc/kernel/trampoline_64.S +++ b/arch/sparc/kernel/trampoline_64.S @@ -407,8 +407,7 @@ after_lock_tlb: call smp_callin nop - call cpu_idle - mov 0, %o0 + call cpu_panic nop 1: b,a,pt %xcc, 1b diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c index 8d38ca9..b3f833a 100644 --- a/arch/sparc/kernel/traps_64.c +++ b/arch/sparc/kernel/traps_64.c @@ -2350,13 +2350,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) } while (++count < 16); } -void dump_stack(void) -{ - show_stack(current, NULL); -} - -EXPORT_SYMBOL(dump_stack); - static inline struct reg_window *kernel_stack_up(struct reg_window *rw) { unsigned long fp = rw->ins[6]; diff --git a/arch/sparc/kernel/us2e_cpufreq.c b/arch/sparc/kernel/us2e_cpufreq.c deleted file mode 100644 index 489fc15..0000000 --- a/arch/sparc/kernel/us2e_cpufreq.c +++ /dev/null @@ -1,413 +0,0 @@ -/* us2e_cpufreq.c: UltraSPARC-IIe cpu frequency support - * - * Copyright (C) 2003 David S. Miller (davem@redhat.com) - * - * Many thanks to Dominik Brodowski for fixing up the cpufreq - * infrastructure in order to make this driver easier to implement. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/smp.h> -#include <linux/cpufreq.h> -#include <linux/threads.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/init.h> - -#include <asm/asi.h> -#include <asm/timer.h> - -static struct cpufreq_driver *cpufreq_us2e_driver; - -struct us2e_freq_percpu_info { - struct cpufreq_frequency_table table[6]; -}; - -/* Indexed by cpu number. */ -static struct us2e_freq_percpu_info *us2e_freq_table; - -#define HBIRD_MEM_CNTL0_ADDR 0x1fe0000f010UL -#define HBIRD_ESTAR_MODE_ADDR 0x1fe0000f080UL - -/* UltraSPARC-IIe has five dividers: 1, 2, 4, 6, and 8. These are controlled - * in the ESTAR mode control register. - */ -#define ESTAR_MODE_DIV_1 0x0000000000000000UL -#define ESTAR_MODE_DIV_2 0x0000000000000001UL -#define ESTAR_MODE_DIV_4 0x0000000000000003UL -#define ESTAR_MODE_DIV_6 0x0000000000000002UL -#define ESTAR_MODE_DIV_8 0x0000000000000004UL -#define ESTAR_MODE_DIV_MASK 0x0000000000000007UL - -#define MCTRL0_SREFRESH_ENAB 0x0000000000010000UL -#define MCTRL0_REFR_COUNT_MASK 0x0000000000007f00UL -#define MCTRL0_REFR_COUNT_SHIFT 8 -#define MCTRL0_REFR_INTERVAL 7800 -#define MCTRL0_REFR_CLKS_P_CNT 64 - -static unsigned long read_hbreg(unsigned long addr) -{ - unsigned long ret; - - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=&r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - return ret; -} - -static void write_hbreg(unsigned long addr, unsigned long val) -{ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (val), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) - : "memory"); - if (addr == HBIRD_ESTAR_MODE_ADDR) { - /* Need to wait 16 clock cycles for the PLL to lock. */ - udelay(1); - } -} - -static void self_refresh_ctl(int enable) -{ - unsigned long mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR); - - if (enable) - mctrl |= MCTRL0_SREFRESH_ENAB; - else - mctrl &= ~MCTRL0_SREFRESH_ENAB; - write_hbreg(HBIRD_MEM_CNTL0_ADDR, mctrl); - (void) read_hbreg(HBIRD_MEM_CNTL0_ADDR); -} - -static void frob_mem_refresh(int cpu_slowing_down, - unsigned long clock_tick, - unsigned long old_divisor, unsigned long divisor) -{ - unsigned long old_refr_count, refr_count, mctrl; - - refr_count = (clock_tick * MCTRL0_REFR_INTERVAL); - refr_count /= (MCTRL0_REFR_CLKS_P_CNT * divisor * 1000000000UL); - - mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR); - old_refr_count = (mctrl & MCTRL0_REFR_COUNT_MASK) - >> MCTRL0_REFR_COUNT_SHIFT; - - mctrl &= ~MCTRL0_REFR_COUNT_MASK; - mctrl |= refr_count << MCTRL0_REFR_COUNT_SHIFT; - write_hbreg(HBIRD_MEM_CNTL0_ADDR, mctrl); - mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR); - - if (cpu_slowing_down && !(mctrl & MCTRL0_SREFRESH_ENAB)) { - unsigned long usecs; - - /* We have to wait for both refresh counts (old - * and new) to go to zero. - */ - usecs = (MCTRL0_REFR_CLKS_P_CNT * - (refr_count + old_refr_count) * - 1000000UL * - old_divisor) / clock_tick; - udelay(usecs + 1UL); - } -} - -static void us2e_transition(unsigned long estar, unsigned long new_bits, - unsigned long clock_tick, - unsigned long old_divisor, unsigned long divisor) -{ - unsigned long flags; - - local_irq_save(flags); - - estar &= ~ESTAR_MODE_DIV_MASK; - - /* This is based upon the state transition diagram in the IIe manual. */ - if (old_divisor == 2 && divisor == 1) { - self_refresh_ctl(0); - write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits); - frob_mem_refresh(0, clock_tick, old_divisor, divisor); - } else if (old_divisor == 1 && divisor == 2) { - frob_mem_refresh(1, clock_tick, old_divisor, divisor); - write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits); - self_refresh_ctl(1); - } else if (old_divisor == 1 && divisor > 2) { - us2e_transition(estar, ESTAR_MODE_DIV_2, clock_tick, - 1, 2); - us2e_transition(estar, new_bits, clock_tick, - 2, divisor); - } else if (old_divisor > 2 && divisor == 1) { - us2e_transition(estar, ESTAR_MODE_DIV_2, clock_tick, - old_divisor, 2); - us2e_transition(estar, new_bits, clock_tick, - 2, divisor); - } else if (old_divisor < divisor) { - frob_mem_refresh(0, clock_tick, old_divisor, divisor); - write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits); - } else if (old_divisor > divisor) { - write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits); - frob_mem_refresh(1, clock_tick, old_divisor, divisor); - } else { - BUG(); - } - - local_irq_restore(flags); -} - -static unsigned long index_to_estar_mode(unsigned int index) -{ - switch (index) { - case 0: - return ESTAR_MODE_DIV_1; - - case 1: - return ESTAR_MODE_DIV_2; - - case 2: - return ESTAR_MODE_DIV_4; - - case 3: - return ESTAR_MODE_DIV_6; - - case 4: - return ESTAR_MODE_DIV_8; - - default: - BUG(); - } -} - -static unsigned long index_to_divisor(unsigned int index) -{ - switch (index) { - case 0: - return 1; - - case 1: - return 2; - - case 2: - return 4; - - case 3: - return 6; - - case 4: - return 8; - - default: - BUG(); - } -} - -static unsigned long estar_to_divisor(unsigned long estar) -{ - unsigned long ret; - - switch (estar & ESTAR_MODE_DIV_MASK) { - case ESTAR_MODE_DIV_1: - ret = 1; - break; - case ESTAR_MODE_DIV_2: - ret = 2; - break; - case ESTAR_MODE_DIV_4: - ret = 4; - break; - case ESTAR_MODE_DIV_6: - ret = 6; - break; - case ESTAR_MODE_DIV_8: - ret = 8; - break; - default: - BUG(); - } - - return ret; -} - -static unsigned int us2e_freq_get(unsigned int cpu) -{ - cpumask_t cpus_allowed; - unsigned long clock_tick, estar; - - if (!cpu_online(cpu)) - return 0; - - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current)); - set_cpus_allowed_ptr(current, cpumask_of(cpu)); - - clock_tick = sparc64_get_clock_tick(cpu) / 1000; - estar = read_hbreg(HBIRD_ESTAR_MODE_ADDR); - - set_cpus_allowed_ptr(current, &cpus_allowed); - - return clock_tick / estar_to_divisor(estar); -} - -static void us2e_set_cpu_divider_index(unsigned int cpu, unsigned int index) -{ - unsigned long new_bits, new_freq; - unsigned long clock_tick, divisor, old_divisor, estar; - cpumask_t cpus_allowed; - struct cpufreq_freqs freqs; - - if (!cpu_online(cpu)) - return; - - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current)); - set_cpus_allowed_ptr(current, cpumask_of(cpu)); - - new_freq = clock_tick = sparc64_get_clock_tick(cpu) / 1000; - new_bits = index_to_estar_mode(index); - divisor = index_to_divisor(index); - new_freq /= divisor; - - estar = read_hbreg(HBIRD_ESTAR_MODE_ADDR); - - old_divisor = estar_to_divisor(estar); - - freqs.old = clock_tick / old_divisor; - freqs.new = new_freq; - freqs.cpu = cpu; - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - if (old_divisor != divisor) - us2e_transition(estar, new_bits, clock_tick * 1000, - old_divisor, divisor); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - set_cpus_allowed_ptr(current, &cpus_allowed); -} - -static int us2e_freq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int new_index = 0; - - if (cpufreq_frequency_table_target(policy, - &us2e_freq_table[policy->cpu].table[0], - target_freq, relation, &new_index)) - return -EINVAL; - - us2e_set_cpu_divider_index(policy->cpu, new_index); - - return 0; -} - -static int us2e_freq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - &us2e_freq_table[policy->cpu].table[0]); -} - -static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy) -{ - unsigned int cpu = policy->cpu; - unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; - struct cpufreq_frequency_table *table = - &us2e_freq_table[cpu].table[0]; - - table[0].index = 0; - table[0].frequency = clock_tick / 1; - table[1].index = 1; - table[1].frequency = clock_tick / 2; - table[2].index = 2; - table[2].frequency = clock_tick / 4; - table[2].index = 3; - table[2].frequency = clock_tick / 6; - table[2].index = 4; - table[2].frequency = clock_tick / 8; - table[2].index = 5; - table[3].frequency = CPUFREQ_TABLE_END; - - policy->cpuinfo.transition_latency = 0; - policy->cur = clock_tick; - - return cpufreq_frequency_table_cpuinfo(policy, table); -} - -static int us2e_freq_cpu_exit(struct cpufreq_policy *policy) -{ - if (cpufreq_us2e_driver) - us2e_set_cpu_divider_index(policy->cpu, 0); - - return 0; -} - -static int __init us2e_freq_init(void) -{ - unsigned long manuf, impl, ver; - int ret; - - if (tlb_type != spitfire) - return -ENODEV; - - __asm__("rdpr %%ver, %0" : "=r" (ver)); - manuf = ((ver >> 48) & 0xffff); - impl = ((ver >> 32) & 0xffff); - - if (manuf == 0x17 && impl == 0x13) { - struct cpufreq_driver *driver; - - ret = -ENOMEM; - driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL); - if (!driver) - goto err_out; - - us2e_freq_table = kzalloc( - (NR_CPUS * sizeof(struct us2e_freq_percpu_info)), - GFP_KERNEL); - if (!us2e_freq_table) - goto err_out; - - driver->init = us2e_freq_cpu_init; - driver->verify = us2e_freq_verify; - driver->target = us2e_freq_target; - driver->get = us2e_freq_get; - driver->exit = us2e_freq_cpu_exit; - driver->owner = THIS_MODULE, - strcpy(driver->name, "UltraSPARC-IIe"); - - cpufreq_us2e_driver = driver; - ret = cpufreq_register_driver(driver); - if (ret) - goto err_out; - - return 0; - -err_out: - if (driver) { - kfree(driver); - cpufreq_us2e_driver = NULL; - } - kfree(us2e_freq_table); - us2e_freq_table = NULL; - return ret; - } - - return -ENODEV; -} - -static void __exit us2e_freq_exit(void) -{ - if (cpufreq_us2e_driver) { - cpufreq_unregister_driver(cpufreq_us2e_driver); - kfree(cpufreq_us2e_driver); - cpufreq_us2e_driver = NULL; - kfree(us2e_freq_table); - us2e_freq_table = NULL; - } -} - -MODULE_AUTHOR("David S. Miller <davem@redhat.com>"); -MODULE_DESCRIPTION("cpufreq driver for UltraSPARC-IIe"); -MODULE_LICENSE("GPL"); - -module_init(us2e_freq_init); -module_exit(us2e_freq_exit); diff --git a/arch/sparc/kernel/us3_cpufreq.c b/arch/sparc/kernel/us3_cpufreq.c deleted file mode 100644 index eb1624b..0000000 --- a/arch/sparc/kernel/us3_cpufreq.c +++ /dev/null @@ -1,274 +0,0 @@ -/* us3_cpufreq.c: UltraSPARC-III cpu frequency support - * - * Copyright (C) 2003 David S. Miller (davem@redhat.com) - * - * Many thanks to Dominik Brodowski for fixing up the cpufreq - * infrastructure in order to make this driver easier to implement. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/smp.h> -#include <linux/cpufreq.h> -#include <linux/threads.h> -#include <linux/slab.h> -#include <linux/init.h> - -#include <asm/head.h> -#include <asm/timer.h> - -static struct cpufreq_driver *cpufreq_us3_driver; - -struct us3_freq_percpu_info { - struct cpufreq_frequency_table table[4]; -}; - -/* Indexed by cpu number. */ -static struct us3_freq_percpu_info *us3_freq_table; - -/* UltraSPARC-III has three dividers: 1, 2, and 32. These are controlled - * in the Safari config register. - */ -#define SAFARI_CFG_DIV_1 0x0000000000000000UL -#define SAFARI_CFG_DIV_2 0x0000000040000000UL -#define SAFARI_CFG_DIV_32 0x0000000080000000UL -#define SAFARI_CFG_DIV_MASK 0x00000000C0000000UL - -static unsigned long read_safari_cfg(void) -{ - unsigned long ret; - - __asm__ __volatile__("ldxa [%%g0] %1, %0" - : "=&r" (ret) - : "i" (ASI_SAFARI_CONFIG)); - return ret; -} - -static void write_safari_cfg(unsigned long val) -{ - __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (val), "i" (ASI_SAFARI_CONFIG) - : "memory"); -} - -static unsigned long get_current_freq(unsigned int cpu, unsigned long safari_cfg) -{ - unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; - unsigned long ret; - - switch (safari_cfg & SAFARI_CFG_DIV_MASK) { - case SAFARI_CFG_DIV_1: - ret = clock_tick / 1; - break; - case SAFARI_CFG_DIV_2: - ret = clock_tick / 2; - break; - case SAFARI_CFG_DIV_32: - ret = clock_tick / 32; - break; - default: - BUG(); - } - - return ret; -} - -static unsigned int us3_freq_get(unsigned int cpu) -{ - cpumask_t cpus_allowed; - unsigned long reg; - unsigned int ret; - - if (!cpu_online(cpu)) - return 0; - - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current)); - set_cpus_allowed_ptr(current, cpumask_of(cpu)); - - reg = read_safari_cfg(); - ret = get_current_freq(cpu, reg); - - set_cpus_allowed_ptr(current, &cpus_allowed); - - return ret; -} - -static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index) -{ - unsigned long new_bits, new_freq, reg; - cpumask_t cpus_allowed; - struct cpufreq_freqs freqs; - - if (!cpu_online(cpu)) - return; - - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current)); - set_cpus_allowed_ptr(current, cpumask_of(cpu)); - - new_freq = sparc64_get_clock_tick(cpu) / 1000; - switch (index) { - case 0: - new_bits = SAFARI_CFG_DIV_1; - new_freq /= 1; - break; - case 1: - new_bits = SAFARI_CFG_DIV_2; - new_freq /= 2; - break; - case 2: - new_bits = SAFARI_CFG_DIV_32; - new_freq /= 32; - break; - - default: - BUG(); - } - - reg = read_safari_cfg(); - - freqs.old = get_current_freq(cpu, reg); - freqs.new = new_freq; - freqs.cpu = cpu; - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - reg &= ~SAFARI_CFG_DIV_MASK; - reg |= new_bits; - write_safari_cfg(reg); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - set_cpus_allowed_ptr(current, &cpus_allowed); -} - -static int us3_freq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int new_index = 0; - - if (cpufreq_frequency_table_target(policy, - &us3_freq_table[policy->cpu].table[0], - target_freq, - relation, - &new_index)) - return -EINVAL; - - us3_set_cpu_divider_index(policy->cpu, new_index); - - return 0; -} - -static int us3_freq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - &us3_freq_table[policy->cpu].table[0]); -} - -static int __init us3_freq_cpu_init(struct cpufreq_policy *policy) -{ - unsigned int cpu = policy->cpu; - unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; - struct cpufreq_frequency_table *table = - &us3_freq_table[cpu].table[0]; - - table[0].index = 0; - table[0].frequency = clock_tick / 1; - table[1].index = 1; - table[1].frequency = clock_tick / 2; - table[2].index = 2; - table[2].frequency = clock_tick / 32; - table[3].index = 0; - table[3].frequency = CPUFREQ_TABLE_END; - - policy->cpuinfo.transition_latency = 0; - policy->cur = clock_tick; - - return cpufreq_frequency_table_cpuinfo(policy, table); -} - -static int us3_freq_cpu_exit(struct cpufreq_policy *policy) -{ - if (cpufreq_us3_driver) - us3_set_cpu_divider_index(policy->cpu, 0); - - return 0; -} - -static int __init us3_freq_init(void) -{ - unsigned long manuf, impl, ver; - int ret; - - if (tlb_type != cheetah && tlb_type != cheetah_plus) - return -ENODEV; - - __asm__("rdpr %%ver, %0" : "=r" (ver)); - manuf = ((ver >> 48) & 0xffff); - impl = ((ver >> 32) & 0xffff); - - if (manuf == CHEETAH_MANUF && - (impl == CHEETAH_IMPL || - impl == CHEETAH_PLUS_IMPL || - impl == JAGUAR_IMPL || - impl == PANTHER_IMPL)) { - struct cpufreq_driver *driver; - - ret = -ENOMEM; - driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL); - if (!driver) - goto err_out; - - us3_freq_table = kzalloc( - (NR_CPUS * sizeof(struct us3_freq_percpu_info)), - GFP_KERNEL); - if (!us3_freq_table) - goto err_out; - - driver->init = us3_freq_cpu_init; - driver->verify = us3_freq_verify; - driver->target = us3_freq_target; - driver->get = us3_freq_get; - driver->exit = us3_freq_cpu_exit; - driver->owner = THIS_MODULE, - strcpy(driver->name, "UltraSPARC-III"); - - cpufreq_us3_driver = driver; - ret = cpufreq_register_driver(driver); - if (ret) - goto err_out; - - return 0; - -err_out: - if (driver) { - kfree(driver); - cpufreq_us3_driver = NULL; - } - kfree(us3_freq_table); - us3_freq_table = NULL; - return ret; - } - - return -ENODEV; -} - -static void __exit us3_freq_exit(void) -{ - if (cpufreq_us3_driver) { - cpufreq_unregister_driver(cpufreq_us3_driver); - kfree(cpufreq_us3_driver); - cpufreq_us3_driver = NULL; - kfree(us3_freq_table); - us3_freq_table = NULL; - } -} - -MODULE_AUTHOR("David S. Miller <davem@redhat.com>"); -MODULE_DESCRIPTION("cpufreq driver for UltraSPARC-III"); -MODULE_LICENSE("GPL"); - -module_init(us3_freq_init); -module_exit(us3_freq_exit); diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile index 8410065f2..dbe119b 100644 --- a/arch/sparc/lib/Makefile +++ b/arch/sparc/lib/Makefile @@ -45,4 +45,3 @@ obj-y += iomap.o obj-$(CONFIG_SPARC32) += atomic32.o ucmpdi2.o obj-y += ksyms.o obj-$(CONFIG_SPARC64) += PeeCeeI.o -obj-y += usercopy.o diff --git a/arch/sparc/lib/usercopy.c b/arch/sparc/lib/usercopy.c deleted file mode 100644 index 5c4284c..0000000 --- a/arch/sparc/lib/usercopy.c +++ /dev/null @@ -1,9 +0,0 @@ -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/bug.h> - -void copy_from_user_overflow(void) -{ - WARN(1, "Buffer overflow detected!\n"); -} -EXPORT_SYMBOL(copy_from_user_overflow); diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index 48e0c03..4490c39 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -282,14 +282,8 @@ static void map_high_region(unsigned long start_pfn, unsigned long end_pfn) printk("mapping high region %08lx - %08lx\n", start_pfn, end_pfn); #endif - for (tmp = start_pfn; tmp < end_pfn; tmp++) { - struct page *page = pfn_to_page(tmp); - - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - totalhigh_pages++; - } + for (tmp = start_pfn; tmp < end_pfn; tmp++) + free_highmem_page(pfn_to_page(tmp)); } void __init mem_init(void) @@ -347,8 +341,6 @@ void __init mem_init(void) map_high_region(start_pfn, end_pfn); } - totalram_pages += totalhigh_pages; - codepages = (((unsigned long) &_etext) - ((unsigned long)&_start)); codepages = PAGE_ALIGN(codepages) >> PAGE_SHIFT; datapages = (((unsigned long) &_edata) - ((unsigned long)&_etext)); diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 1588d33..6ac99d6 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2181,10 +2181,9 @@ unsigned long vmemmap_table[VMEMMAP_SIZE]; static long __meminitdata addr_start, addr_end; static int __meminitdata node_start; -int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node) +int __meminit vmemmap_populate(unsigned long vstart, unsigned long vend, + int node) { - unsigned long vstart = (unsigned long) start; - unsigned long vend = (unsigned long) (start + nr); unsigned long phys_start = (vstart - VMEMMAP_BASE); unsigned long phys_end = (vend - VMEMMAP_BASE); unsigned long addr = phys_start & VMEMMAP_CHUNK_MASK; @@ -2236,7 +2235,7 @@ void __meminit vmemmap_populate_print_last(void) } } -void vmemmap_free(struct page *memmap, unsigned long nr_pages) +void vmemmap_free(unsigned long start, unsigned long end) { } diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c index 272aa4f..83d89bc 100644 --- a/arch/sparc/mm/tlb.c +++ b/arch/sparc/mm/tlb.c @@ -87,7 +87,7 @@ static void tlb_batch_add_one(struct mm_struct *mm, unsigned long vaddr, if (!tb->active) { global_flush_tlb_page(mm, vaddr); flush_tsb_user_page(mm, vaddr); - return; + goto out; } if (nr == 0) @@ -98,6 +98,7 @@ static void tlb_batch_add_one(struct mm_struct *mm, unsigned long vaddr, if (nr >= TLB_BATCH_NR) flush_tlb_pending(); +out: put_cpu_var(tlb_batch); } diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 25877ae..5b6a40d 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -16,12 +16,15 @@ config TILE select GENERIC_PENDING_IRQ if SMP select GENERIC_IRQ_SHOW select HAVE_DEBUG_BUGVERBOSE - select HAVE_SYSCALL_WRAPPERS if TILEGX select VIRT_TO_BUS select SYS_HYPERVISOR + select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_CLOCKEVENTS select MODULES_USE_ELF_RELA + select HAVE_ARCH_TRACEHOOK + select HAVE_SYSCALL_TRACEPOINTS + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE # FIXME: investigate whether we need/want these options. # select HAVE_IOREMAP_PROT @@ -40,9 +43,6 @@ config MMU config GENERIC_CSUM def_bool y -config SEMAPHORE_SLEEPERS - def_bool y - config HAVE_ARCH_ALLOC_REMAP def_bool y @@ -67,12 +67,6 @@ config HUGETLB_SUPER_PAGES config RWSEM_GENERIC_SPINLOCK def_bool y -# We have a very flat architecture from a migration point of view, -# so save boot time by presetting this (particularly useful on tile-sim). -config DEFAULT_MIGRATION_COST - int - default "10000000" - # We only support gcc 4.4 and above, so this should work. config ARCH_SUPPORTS_OPTIMIZED_INLINING def_bool y @@ -114,13 +108,6 @@ config STRICT_DEVMEM config SMP def_bool y -# Allow checking for compile-time determined overflow errors in -# copy_from_user(). There are still unprovable places in the -# generic code as of 2.6.34, so this option is not really compatible -# with -Werror, which is more useful in general. -config DEBUG_COPY_FROM_USER - def_bool n - config HVC_TILE depends on TTY select HVC_DRIVER @@ -420,11 +407,6 @@ endmenu menu "Executable file formats" -# only elf supported -config KCORE_ELF - def_bool y - depends on PROC_FS - source "fs/Kconfig.binfmt" endmenu diff --git a/arch/tile/include/asm/atomic.h b/arch/tile/include/asm/atomic.h index f246142..e71387a 100644 --- a/arch/tile/include/asm/atomic.h +++ b/arch/tile/include/asm/atomic.h @@ -131,4 +131,25 @@ static inline int atomic_read(const atomic_t *v) #include <asm/atomic_64.h> #endif +#ifndef __ASSEMBLY__ + +static inline long long atomic64_dec_if_positive(atomic64_t *v) +{ + long long c, old, dec; + + c = atomic64_read(v); + for (;;) { + dec = c - 1; + if (unlikely(dec < 0)) + break; + old = atomic64_cmpxchg((v), c, dec); + if (likely(old == c)) + break; + c = old; + } + return dec; +} + +#endif /* __ASSEMBLY__ */ + #endif /* _ASM_TILE_ATOMIC_H */ diff --git a/arch/tile/include/asm/hugetlb.h b/arch/tile/include/asm/hugetlb.h index 0f885af..3257733 100644 --- a/arch/tile/include/asm/hugetlb.h +++ b/arch/tile/include/asm/hugetlb.h @@ -16,6 +16,7 @@ #define _ASM_TILE_HUGETLB_H #include <asm/page.h> +#include <asm-generic/hugetlb.h> static inline int is_hugepage_only_range(struct mm_struct *mm, diff --git a/arch/tile/include/asm/ptrace.h b/arch/tile/include/asm/ptrace.h index 2e83fc1..fd41226 100644 --- a/arch/tile/include/asm/ptrace.h +++ b/arch/tile/include/asm/ptrace.h @@ -44,7 +44,8 @@ typedef unsigned long pt_reg_t; struct pt_regs *get_pt_regs(struct pt_regs *); /* Trace the current syscall. */ -extern void do_syscall_trace(void); +extern int do_syscall_trace_enter(struct pt_regs *regs); +extern void do_syscall_trace_exit(struct pt_regs *regs); #define arch_has_single_step() (1) diff --git a/arch/tile/include/asm/syscall.h b/arch/tile/include/asm/syscall.h index d35e0dc..9644b88 100644 --- a/arch/tile/include/asm/syscall.h +++ b/arch/tile/include/asm/syscall.h @@ -22,6 +22,12 @@ #include <linux/err.h> #include <arch/abi.h> +/* The array of function pointers for syscalls. */ +extern void *sys_call_table[]; +#ifdef CONFIG_COMPAT +extern void *compat_sys_call_table[]; +#endif + /* * Only the low 32 bits of orig_r0 are meaningful, so we return int. * This importantly ignores the high bits on 64-bit, so comparisons diff --git a/arch/tile/include/asm/syscalls.h b/arch/tile/include/asm/syscalls.h index 78886e2..07b2984 100644 --- a/arch/tile/include/asm/syscalls.h +++ b/arch/tile/include/asm/syscalls.h @@ -24,12 +24,6 @@ #include <linux/types.h> #include <linux/compat.h> -/* The array of function pointers for syscalls. */ -extern void *sys_call_table[]; -#ifdef CONFIG_COMPAT -extern void *compat_sys_call_table[]; -#endif - /* * Note that by convention, any syscall which requires the current * register set takes an additional "struct pt_regs *" pointer; a diff --git a/arch/tile/include/asm/thread_info.h b/arch/tile/include/asm/thread_info.h index e9c670d..d1733de 100644 --- a/arch/tile/include/asm/thread_info.h +++ b/arch/tile/include/asm/thread_info.h @@ -124,6 +124,7 @@ extern void _cpu_idle(void); #define TIF_SECCOMP 6 /* secure computing */ #define TIF_MEMDIE 7 /* OOM killer at work */ #define TIF_NOTIFY_RESUME 8 /* callback before returning to user */ +#define TIF_SYSCALL_TRACEPOINT 9 /* syscall tracepoint instrumentation */ #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) @@ -134,12 +135,19 @@ extern void _cpu_idle(void); #define _TIF_SECCOMP (1<<TIF_SECCOMP) #define _TIF_MEMDIE (1<<TIF_MEMDIE) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) +#define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) /* Work to do on any return to user space. */ #define _TIF_ALLWORK_MASK \ (_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_SINGLESTEP|\ _TIF_ASYNC_TLB|_TIF_NOTIFY_RESUME) +/* Work to do at syscall entry. */ +#define _TIF_SYSCALL_ENTRY_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT) + +/* Work to do at syscall exit. */ +#define _TIF_SYSCALL_EXIT_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT) + /* * Thread-synchronous status. * @@ -153,8 +161,6 @@ extern void _cpu_idle(void); #define TS_POLLING 0x0004 /* in idle loop but not sleeping */ #define TS_RESTORE_SIGMASK 0x0008 /* restore signal mask in do_signal */ -#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING) - #ifndef __ASSEMBLY__ #define HAVE_SET_RESTORE_SIGMASK 1 static inline void set_restore_sigmask(void) diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h index 9ab078a..8a082bc 100644 --- a/arch/tile/include/asm/uaccess.h +++ b/arch/tile/include/asm/uaccess.h @@ -395,7 +395,12 @@ _copy_from_user(void *to, const void __user *from, unsigned long n) return n; } -#ifdef CONFIG_DEBUG_COPY_FROM_USER +#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS +/* + * There are still unprovable places in the generic code as of 2.6.34, so this + * option is not really compatible with -Werror, which is more useful in + * general. + */ extern void copy_from_user_overflow(void) __compiletime_warning("copy_from_user() size is not provably correct"); diff --git a/arch/tile/include/uapi/asm/unistd.h b/arch/tile/include/uapi/asm/unistd.h index cd7b6dd..3866397 100644 --- a/arch/tile/include/uapi/asm/unistd.h +++ b/arch/tile/include/uapi/asm/unistd.h @@ -20,6 +20,8 @@ /* Use the standard ABI for syscalls. */ #include <asm-generic/unistd.h> +#define NR_syscalls __NR_syscalls + /* Additional Tilera-specific syscalls. */ #define __NR_cacheflush (__NR_arch_specific_syscall + 1) __SYSCALL(__NR_cacheflush, sys_cacheflush) diff --git a/arch/tile/kernel/compat.c b/arch/tile/kernel/compat.c index 6ea4cdb..ed37841 100644 --- a/arch/tile/kernel/compat.c +++ b/arch/tile/kernel/compat.c @@ -56,12 +56,6 @@ COMPAT_SYSCALL_DEFINE6(pwrite64, unsigned int, fd, char __user *, ubuf, return sys_pwrite64(fd, ubuf, count, ((loff_t)high << 32) | low); } -COMPAT_SYSCALL_DEFINE4(lookup_dcookie, u32, low, u32, high, - char __user *, buf, size_t, len) -{ - return sys_lookup_dcookie(((loff_t)high << 32) | low, buf, len); -} - COMPAT_SYSCALL_DEFINE6(sync_file_range2, int, fd, unsigned int, flags, u32, offset_lo, u32, offset_hi, u32, nbytes_lo, u32, nbytes_hi) diff --git a/arch/tile/kernel/early_printk.c b/arch/tile/kernel/early_printk.c index afb9c9a..34d72a1 100644 --- a/arch/tile/kernel/early_printk.c +++ b/arch/tile/kernel/early_printk.c @@ -17,6 +17,7 @@ #include <linux/init.h> #include <linux/string.h> #include <linux/irqflags.h> +#include <linux/printk.h> #include <asm/setup.h> #include <hv/hypervisor.h> @@ -33,25 +34,8 @@ static struct console early_hv_console = { }; /* Direct interface for emergencies */ -static struct console *early_console = &early_hv_console; -static int early_console_initialized; static int early_console_complete; -static void early_vprintk(const char *fmt, va_list ap) -{ - char buf[512]; - int n = vscnprintf(buf, sizeof(buf), fmt, ap); - early_console->write(early_console, buf, n); -} - -void early_printk(const char *fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - early_vprintk(fmt, ap); - va_end(ap); -} - void early_panic(const char *fmt, ...) { va_list ap; @@ -69,14 +53,13 @@ static int __initdata keep_early; static int __init setup_early_printk(char *str) { - if (early_console_initialized) + if (early_console) return 1; if (str != NULL && strncmp(str, "keep", 4) == 0) keep_early = 1; early_console = &early_hv_console; - early_console_initialized = 1; register_console(early_console); return 0; @@ -85,12 +68,12 @@ static int __init setup_early_printk(char *str) void __init disable_early_printk(void) { early_console_complete = 1; - if (!early_console_initialized || !early_console) + if (!early_console) return; if (!keep_early) { early_printk("disabling early console\n"); unregister_console(early_console); - early_console_initialized = 0; + early_console = NULL; } else { early_printk("keeping early console\n"); } @@ -98,7 +81,7 @@ void __init disable_early_printk(void) void warn_early_printk(void) { - if (early_console_complete || early_console_initialized) + if (early_console_complete || early_console) return; early_printk("\ Machine shutting down before console output is fully initialized.\n\ diff --git a/arch/tile/kernel/intvec_32.S b/arch/tile/kernel/intvec_32.S index f212bf7..cb52d66 100644 --- a/arch/tile/kernel/intvec_32.S +++ b/arch/tile/kernel/intvec_32.S @@ -1201,7 +1201,10 @@ handle_syscall: lw r30, r31 andi r30, r30, _TIF_SYSCALL_TRACE bzt r30, .Lrestore_syscall_regs - jal do_syscall_trace + { + PTREGS_PTR(r0, PTREGS_OFFSET_BASE) + jal do_syscall_trace_enter + } FEEDBACK_REENTER(handle_syscall) /* @@ -1252,7 +1255,10 @@ handle_syscall: lw r30, r31 andi r30, r30, _TIF_SYSCALL_TRACE bzt r30, 1f - jal do_syscall_trace + { + PTREGS_PTR(r0, PTREGS_OFFSET_BASE) + jal do_syscall_trace_exit + } FEEDBACK_REENTER(handle_syscall) 1: { movei r30, 0 /* not an NMI */ diff --git a/arch/tile/kernel/intvec_64.S b/arch/tile/kernel/intvec_64.S index 4ea0809..85d4839 100644 --- a/arch/tile/kernel/intvec_64.S +++ b/arch/tile/kernel/intvec_64.S @@ -1000,13 +1000,19 @@ handle_syscall: /* Trace syscalls, if requested. */ addi r31, r31, THREAD_INFO_FLAGS_OFFSET - ld r30, r31 - andi r30, r30, _TIF_SYSCALL_TRACE + { + ld r30, r31 + moveli r32, _TIF_SYSCALL_ENTRY_WORK + } + and r30, r30, r32 { addi r30, r31, THREAD_INFO_STATUS_OFFSET - THREAD_INFO_FLAGS_OFFSET beqzt r30, .Lrestore_syscall_regs } - jal do_syscall_trace + { + PTREGS_PTR(r0, PTREGS_OFFSET_BASE) + jal do_syscall_trace_enter + } FEEDBACK_REENTER(handle_syscall) /* @@ -1071,13 +1077,19 @@ handle_syscall: FEEDBACK_REENTER(handle_syscall) /* Do syscall trace again, if requested. */ - ld r30, r31 - andi r0, r30, _TIF_SYSCALL_TRACE + { + ld r30, r31 + moveli r32, _TIF_SYSCALL_EXIT_WORK + } + and r0, r30, r32 { andi r0, r30, _TIF_SINGLESTEP beqzt r0, 1f } - jal do_syscall_trace + { + PTREGS_PTR(r0, PTREGS_OFFSET_BASE) + jal do_syscall_trace_exit + } FEEDBACK_REENTER(handle_syscall) andi r0, r30, _TIF_SINGLESTEP diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c index caf93ae..8ac3044 100644 --- a/arch/tile/kernel/process.c +++ b/arch/tile/kernel/process.c @@ -40,13 +40,11 @@ #include <arch/abi.h> #include <arch/sim_def.h> - /* * Use the (x86) "idle=poll" option to prefer low latency when leaving the * idle loop over low power while in the idle loop, e.g. if we have * one thread per core and we want to get threads out of futex waits fast. */ -static int no_idle_nap; static int __init idle_setup(char *str) { if (!str) @@ -54,64 +52,19 @@ static int __init idle_setup(char *str) if (!strcmp(str, "poll")) { pr_info("using polling idle threads.\n"); - no_idle_nap = 1; - } else if (!strcmp(str, "halt")) - no_idle_nap = 0; - else - return -1; - - return 0; + cpu_idle_poll_ctrl(true); + return 0; + } else if (!strcmp(str, "halt")) { + return 0; + } + return -1; } early_param("idle", idle_setup); -/* - * 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) +void arch_cpu_idle(void) { - int cpu = smp_processor_id(); - - - current_thread_info()->status |= TS_POLLING; - - if (no_idle_nap) { - while (1) { - while (!need_resched()) - cpu_relax(); - schedule(); - } - } - - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - while (!need_resched()) { - if (cpu_is_offline(cpu)) - BUG(); /* no HOTPLUG_CPU */ - - local_irq_disable(); - __get_cpu_var(irq_stat).idle_timestamp = jiffies; - current_thread_info()->status &= ~TS_POLLING; - /* - * TS_POLLING-cleared state must be visible before we - * test NEED_RESCHED: - */ - smp_mb(); - - if (!need_resched()) - _cpu_idle(); - else - local_irq_enable(); - current_thread_info()->status |= TS_POLLING; - } - rcu_idle_exit(); - tick_nohz_idle_exit(); - schedule_preempt_disabled(); - } + __get_cpu_var(irq_stat).idle_timestamp = jiffies; + _cpu_idle(); } /* @@ -620,8 +573,7 @@ void show_regs(struct pt_regs *regs) int i; pr_err("\n"); - pr_err(" Pid: %d, comm: %20s, CPU: %d\n", - tsk->pid, tsk->comm, smp_processor_id()); + show_regs_print_info(KERN_ERR); #ifdef __tilegx__ for (i = 0; i < 51; i += 3) pr_err(" r%-2d: "REGFMT" r%-2d: "REGFMT" r%-2d: "REGFMT"\n", diff --git a/arch/tile/kernel/ptrace.c b/arch/tile/kernel/ptrace.c index 9835312..0f83ed4 100644 --- a/arch/tile/kernel/ptrace.c +++ b/arch/tile/kernel/ptrace.c @@ -21,9 +21,13 @@ #include <linux/uaccess.h> #include <linux/regset.h> #include <linux/elf.h> +#include <linux/tracehook.h> #include <asm/traps.h> #include <arch/chip.h> +#define CREATE_TRACE_POINTS +#include <trace/events/syscalls.h> + void user_enable_single_step(struct task_struct *child) { set_tsk_thread_flag(child, TIF_SINGLESTEP); @@ -246,29 +250,26 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request, } #endif -void do_syscall_trace(void) +int do_syscall_trace_enter(struct pt_regs *regs) { - if (!test_thread_flag(TIF_SYSCALL_TRACE)) - return; + if (test_thread_flag(TIF_SYSCALL_TRACE)) { + if (tracehook_report_syscall_entry(regs)) + regs->regs[TREG_SYSCALL_NR] = -1; + } - if (!(current->ptrace & PT_PTRACED)) - return; + if (test_thread_flag(TIF_SYSCALL_TRACEPOINT)) + trace_sys_enter(regs, regs->regs[TREG_SYSCALL_NR]); - /* - * 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)); + return regs->regs[TREG_SYSCALL_NR]; +} - /* - * 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; - } +void do_syscall_trace_exit(struct pt_regs *regs) +{ + if (test_thread_flag(TIF_SYSCALL_TRACE)) + tracehook_report_syscall_exit(regs, 0); + + if (test_thread_flag(TIF_SYSCALL_TRACEPOINT)) + trace_sys_exit(regs, regs->regs[0]); } void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code) diff --git a/arch/tile/kernel/smpboot.c b/arch/tile/kernel/smpboot.c index e686c5a..44bab29 100644 --- a/arch/tile/kernel/smpboot.c +++ b/arch/tile/kernel/smpboot.c @@ -207,9 +207,7 @@ void __cpuinit online_secondary(void) /* Set up tile-timer clock-event device on this cpu */ setup_tile_timer(); - preempt_enable(); - - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) diff --git a/arch/tile/kernel/time.c b/arch/tile/kernel/time.c index f6f50f2a..5ac397e 100644 --- a/arch/tile/kernel/time.c +++ b/arch/tile/kernel/time.c @@ -230,6 +230,10 @@ int setup_profiling_timer(unsigned int multiplier) */ cycles_t ns2cycles(unsigned long nsecs) { - struct clock_event_device *dev = &__get_cpu_var(tile_timer); + /* + * We do not have to disable preemption here as each core has the same + * clock frequency. + */ + struct clock_event_device *dev = &__raw_get_cpu_var(tile_timer); return ((u64)nsecs * dev->mult) >> dev->shift; } diff --git a/arch/tile/lib/uaccess.c b/arch/tile/lib/uaccess.c index f8d398c..030abe3 100644 --- a/arch/tile/lib/uaccess.c +++ b/arch/tile/lib/uaccess.c @@ -22,11 +22,3 @@ int __range_ok(unsigned long addr, unsigned long size) is_arch_mappable_range(addr, size)); } EXPORT_SYMBOL(__range_ok); - -#ifdef CONFIG_DEBUG_COPY_FROM_USER -void copy_from_user_overflow(void) -{ - WARN(1, "Buffer overflow detected!\n"); -} -EXPORT_SYMBOL(copy_from_user_overflow); -#endif diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c index b3b4972..dfd63ce 100644 --- a/arch/tile/mm/pgtable.c +++ b/arch/tile/mm/pgtable.c @@ -592,12 +592,7 @@ void iounmap(volatile void __iomem *addr_in) in parallel. Reuse of the virtual address is prevented by leaving it in the global lists until we're done with it. cpa takes care of the direct mappings. */ - read_lock(&vmlist_lock); - for (p = vmlist; p; p = p->next) { - if (p->addr == addr) - break; - } - read_unlock(&vmlist_lock); + p = find_vm_area((void *)addr); if (!p) { pr_err("iounmap: bad address %p\n", addr); diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c index 80b47cb..acbe6c6 100644 --- a/arch/um/drivers/chan_kern.c +++ b/arch/um/drivers/chan_kern.c @@ -568,11 +568,7 @@ void chan_interrupt(struct line *line, int irq) reactivate_fd(chan->fd, irq); if (err == -EIO) { if (chan->primary) { - struct tty_struct *tty = tty_port_tty_get(&line->port); - if (tty != NULL) { - tty_hangup(tty); - tty_kref_put(tty); - } + tty_port_tty_hangup(&line->port, false); if (line->chan_out != chan) close_one_chan(line->chan_out, 1); } diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index be541cf..8035145 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c @@ -248,7 +248,6 @@ static irqreturn_t line_write_interrupt(int irq, void *data) { struct chan *chan = data; struct line *line = chan->line; - struct tty_struct *tty; int err; /* @@ -267,12 +266,7 @@ static irqreturn_t line_write_interrupt(int irq, void *data) } spin_unlock(&line->lock); - tty = tty_port_tty_get(&line->port); - if (tty == NULL) - return IRQ_NONE; - - tty_wakeup(tty); - tty_kref_put(tty); + tty_port_tty_wakeup(&line->port); return IRQ_HANDLED; } diff --git a/arch/um/kernel/early_printk.c b/arch/um/kernel/early_printk.c index 49480f0..4a0800b 100644 --- a/arch/um/kernel/early_printk.c +++ b/arch/um/kernel/early_printk.c @@ -16,7 +16,7 @@ static void early_console_write(struct console *con, const char *s, unsigned int um_early_printk(s, n); } -static struct console early_console = { +static struct console early_console_dev = { .name = "earlycon", .write = early_console_write, .flags = CON_BOOT, @@ -25,8 +25,10 @@ static struct console early_console = { static int __init setup_early_printk(char *buf) { - register_console(&early_console); - + if (!early_console) { + early_console = &early_console_dev; + register_console(&early_console_dev); + } return 0; } diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index 5abcbfb..9df292b 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -42,17 +42,12 @@ static unsigned long brk_end; static void setup_highmem(unsigned long highmem_start, unsigned long highmem_len) { - struct page *page; unsigned long highmem_pfn; int i; highmem_pfn = __pa(highmem_start) >> PAGE_SHIFT; - for (i = 0; i < highmem_len >> PAGE_SHIFT; i++) { - page = &mem_map[highmem_pfn + i]; - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - } + for (i = 0; i < highmem_len >> PAGE_SHIFT; i++) + free_highmem_page(&mem_map[highmem_pfn + i]); } #endif @@ -73,18 +68,13 @@ void __init mem_init(void) totalram_pages = free_all_bootmem(); max_low_pfn = totalram_pages; #ifdef CONFIG_HIGHMEM - totalhigh_pages = highmem >> PAGE_SHIFT; - totalram_pages += totalhigh_pages; + setup_highmem(end_iomem, highmem); #endif num_physpages = totalram_pages; max_pfn = totalram_pages; printk(KERN_INFO "Memory: %luk available\n", nr_free_pages() << (PAGE_SHIFT-10)); kmalloc_ok = 1; - -#ifdef CONFIG_HIGHMEM - setup_highmem(end_iomem, highmem); -#endif } /* @@ -254,15 +244,7 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - if (start < end) - printk(KERN_INFO "Freeing initrd memory: %ldk freed\n", - (end - start) >> 10); - for (; start < end; start += PAGE_SIZE) { - ClearPageReserved(virt_to_page(start)); - init_page_count(virt_to_page(start)); - free_page(start); - totalram_pages++; - } + free_reserved_area(start, end, 0, "initrd"); } #endif diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index b462b13..bbcef52 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -210,33 +210,14 @@ void initial_thread_cb(void (*proc)(void *), void *arg) kmalloc_ok = save_kmalloc_ok; } -void default_idle(void) +void arch_cpu_idle(void) { unsigned long long nsecs; - while (1) { - /* endless idle loop with no priority at all */ - - /* - * although we are an idle CPU, we do not want to - * get into the scheduler unnecessarily. - */ - if (need_resched()) - schedule(); - - tick_nohz_idle_enter(); - rcu_idle_enter(); - nsecs = disable_timer(); - idle_sleep(nsecs); - rcu_idle_exit(); - tick_nohz_idle_exit(); - } -} - -void cpu_idle(void) -{ cpu_tasks[current_thread_info()->cpu].pid = os_getpid(); - default_idle(); + nsecs = disable_timer(); + idle_sleep(nsecs); + local_irq_enable(); } int __cant_sleep(void) { diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c index e562ff8..7d101a2 100644 --- a/arch/um/kernel/sysrq.c +++ b/arch/um/kernel/sysrq.c @@ -35,18 +35,6 @@ void show_trace(struct task_struct *task, unsigned long * stack) } #endif -/* - * stack dumps generator - this is used by arch-independent code. - * And this is identical to i386 currently. - */ -void dump_stack(void) -{ - unsigned long stack; - - show_trace(current, &stack); -} -EXPORT_SYMBOL(dump_stack); - /*Stolen from arch/i386/kernel/traps.c */ static const int kstack_depth_to_print = 24; diff --git a/arch/um/sys-ppc/sysrq.c b/arch/um/sys-ppc/sysrq.c index f889449..1ff1ad7 100644 --- a/arch/um/sys-ppc/sysrq.c +++ b/arch/um/sys-ppc/sysrq.c @@ -11,6 +11,8 @@ void show_regs(struct pt_regs_subarch *regs) { printk("\n"); + show_regs_print_info(KERN_DEFAULT); + printk("show_regs(): insert regs here.\n"); #if 0 printk("\n"); diff --git a/arch/unicore32/kernel/Makefile b/arch/unicore32/kernel/Makefile index fa497e0..607a72f 100644 --- a/arch/unicore32/kernel/Makefile +++ b/arch/unicore32/kernel/Makefile @@ -9,7 +9,6 @@ obj-y += setup.o signal.o sys.o stacktrace.o traps.o obj-$(CONFIG_MODULES) += ksyms.o module.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o -obj-$(CONFIG_CPU_FREQ) += cpu-ucv2.o obj-$(CONFIG_UNICORE_FPU_F64) += fpu-ucf64.o # obj-y for architecture PKUnity v3 diff --git a/arch/unicore32/kernel/cpu-ucv2.c b/arch/unicore32/kernel/cpu-ucv2.c deleted file mode 100644 index 4a99f62..0000000 --- a/arch/unicore32/kernel/cpu-ucv2.c +++ /dev/null @@ -1,93 +0,0 @@ -/* - * linux/arch/unicore32/kernel/cpu-ucv2.c: clock scaling for the UniCore-II - * - * Code specific to PKUnity SoC and UniCore ISA - * - * Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn> - * Copyright (C) 2001-2010 Guan Xuetao - * - * 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/kernel.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/clk.h> -#include <linux/cpufreq.h> - -#include <mach/hardware.h> - -static struct cpufreq_driver ucv2_driver; - -/* make sure that only the "userspace" governor is run - * -- anything else wouldn't make sense on this platform, anyway. - */ -int ucv2_verify_speed(struct cpufreq_policy *policy) -{ - if (policy->cpu) - return -EINVAL; - - cpufreq_verify_within_limits(policy, - policy->cpuinfo.min_freq, policy->cpuinfo.max_freq); - - return 0; -} - -static unsigned int ucv2_getspeed(unsigned int cpu) -{ - struct clk *mclk = clk_get(NULL, "MAIN_CLK"); - - if (cpu) - return 0; - return clk_get_rate(mclk)/1000; -} - -static int ucv2_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int cur = ucv2_getspeed(0); - struct cpufreq_freqs freqs; - struct clk *mclk = clk_get(NULL, "MAIN_CLK"); - - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - if (!clk_set_rate(mclk, target_freq * 1000)) { - freqs.old = cur; - freqs.new = target_freq; - freqs.cpu = 0; - } - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - return 0; -} - -static int __init ucv2_cpu_init(struct cpufreq_policy *policy) -{ - if (policy->cpu != 0) - return -EINVAL; - policy->cur = ucv2_getspeed(0); - policy->min = policy->cpuinfo.min_freq = 250000; - policy->max = policy->cpuinfo.max_freq = 1000000; - policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - return 0; -} - -static struct cpufreq_driver ucv2_driver = { - .flags = CPUFREQ_STICKY, - .verify = ucv2_verify_speed, - .target = ucv2_target, - .get = ucv2_getspeed, - .init = ucv2_cpu_init, - .name = "UniCore-II", -}; - -static int __init ucv2_cpufreq_init(void) -{ - return cpufreq_register_driver(&ucv2_driver); -} - -arch_initcall(ucv2_cpufreq_init); diff --git a/arch/unicore32/kernel/early_printk.c b/arch/unicore32/kernel/early_printk.c index 3922255..9be0d5d 100644 --- a/arch/unicore32/kernel/early_printk.c +++ b/arch/unicore32/kernel/early_printk.c @@ -33,21 +33,17 @@ static struct console early_ocd_console = { .index = -1, }; -/* Direct interface for emergencies */ -static struct console *early_console = &early_ocd_console; - -static int __initdata keep_early; - static int __init setup_early_printk(char *buf) { - if (!buf) + int keep_early; + + if (!buf || early_console) return 0; if (strstr(buf, "keep")) keep_early = 1; - if (!strncmp(buf, "ocd", 3)) - early_console = &early_ocd_console; + early_console = &early_ocd_console; if (keep_early) early_console->flags &= ~CON_BOOT; diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c index 872d7e2..c944769 100644 --- a/arch/unicore32/kernel/process.c +++ b/arch/unicore32/kernel/process.c @@ -45,25 +45,10 @@ static const char * const processor_modes[] = { "UK18", "UK19", "UK1A", "EXTN", "UK1C", "UK1D", "UK1E", "SUSR" }; -void cpu_idle(void) +void arch_cpu_idle(void) { - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - while (!need_resched()) { - local_irq_disable(); - stop_critical_timings(); - cpu_do_idle(); - local_irq_enable(); - start_critical_timings(); - } - rcu_idle_exit(); - tick_nohz_idle_exit(); - preempt_enable_no_resched(); - schedule(); - preempt_disable(); - } + cpu_do_idle(); + local_irq_enable(); } static char reboot_mode = 'h'; @@ -159,11 +144,7 @@ void __show_regs(struct pt_regs *regs) unsigned long flags; char buf[64]; - printk(KERN_DEFAULT "CPU: %d %s (%s %.*s)\n", - raw_smp_processor_id(), print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); + show_regs_print_info(KERN_DEFAULT); print_symbol("PC is at %s\n", instruction_pointer(regs)); print_symbol("LR is at %s\n", regs->UCreg_lr); printk(KERN_DEFAULT "pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n" diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c index 0870b68..c54e324 100644 --- a/arch/unicore32/kernel/traps.c +++ b/arch/unicore32/kernel/traps.c @@ -170,12 +170,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) c_backtrace(fp, mode); } -void dump_stack(void) -{ - dump_backtrace(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); - void show_stack(struct task_struct *tsk, unsigned long *sp) { dump_backtrace(NULL, tsk); diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c index de186bd..63df12d 100644 --- a/arch/unicore32/mm/init.c +++ b/arch/unicore32/mm/init.c @@ -66,6 +66,9 @@ void show_mem(unsigned int filter) printk(KERN_DEFAULT "Mem-info:\n"); show_free_areas(filter); + if (filter & SHOW_MEM_FILTER_PAGE_COUNT) + return; + for_each_bank(i, mi) { struct membank *bank = &mi->bank[i]; unsigned int pfn1, pfn2; @@ -313,24 +316,6 @@ void __init bootmem_init(void) max_pfn = max_high - PHYS_PFN_OFFSET; } -static inline int free_area(unsigned long pfn, unsigned long end, char *s) -{ - unsigned int pages = 0, size = (end - pfn) << (PAGE_SHIFT - 10); - - for (; pfn < end; pfn++) { - struct page *page = pfn_to_page(pfn); - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - pages++; - } - - if (size && s) - printk(KERN_INFO "Freeing %s memory: %dK\n", s, size); - - return pages; -} - static inline void free_memmap(unsigned long start_pfn, unsigned long end_pfn) { @@ -404,9 +389,9 @@ void __init mem_init(void) max_mapnr = pfn_to_page(max_pfn + PHYS_PFN_OFFSET) - mem_map; - /* this will put all unused low memory onto the freelists */ free_unused_memmap(&meminfo); + /* this will put all unused low memory onto the freelists */ totalram_pages += free_all_bootmem(); reserved_pages = free_pages = 0; @@ -491,9 +476,7 @@ void __init mem_init(void) void free_initmem(void) { - totalram_pages += free_area(__phys_to_pfn(__pa(__init_begin)), - __phys_to_pfn(__pa(__init_end)), - "init"); + free_initmem_default(0); } #ifdef CONFIG_BLK_DEV_INITRD @@ -503,9 +486,7 @@ static int keep_initrd; void free_initrd_mem(unsigned long start, unsigned long end) { if (!keep_initrd) - totalram_pages += free_area(__phys_to_pfn(__pa(start)), - __phys_to_pfn(__pa(end)), - "initrd"); + free_reserved_area(start, end, 0, "initrd"); } static int __init keepinitrd_setup(char *__unused) diff --git a/arch/unicore32/mm/ioremap.c b/arch/unicore32/mm/ioremap.c index b7a6055..13068ee 100644 --- a/arch/unicore32/mm/ioremap.c +++ b/arch/unicore32/mm/ioremap.c @@ -235,7 +235,7 @@ EXPORT_SYMBOL(__uc32_ioremap_cached); void __uc32_iounmap(volatile void __iomem *io_addr) { void *addr = (void *)(PAGE_MASK & (unsigned long)io_addr); - struct vm_struct **p, *tmp; + struct vm_struct *vm; /* * If this is a section based mapping we need to handle it @@ -244,17 +244,10 @@ void __uc32_iounmap(volatile void __iomem *io_addr) * all the mappings before the area can be reclaimed * by someone else. */ - write_lock(&vmlist_lock); - for (p = &vmlist ; (tmp = *p) ; p = &tmp->next) { - if ((tmp->flags & VM_IOREMAP) && (tmp->addr == addr)) { - if (tmp->flags & VM_UNICORE_SECTION_MAPPING) { - unmap_area_sections((unsigned long)tmp->addr, - tmp->size); - } - break; - } - } - write_unlock(&vmlist_lock); + vm = find_vm_area(addr); + if (vm && (vm->flags & VM_IOREMAP) && + (vm->flags & VM_UNICORE_SECTION_MAPPING)) + unmap_area_sections((unsigned long)vm->addr, vm->size); vunmap(addr); } diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 15b5cef..5db2117 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -20,6 +20,7 @@ config X86_64 ### Arch settings config X86 def_bool y + select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS select HAVE_AOUT if X86_32 select HAVE_UNSTABLE_SCHED_CLOCK select ARCH_SUPPORTS_NUMA_BALANCING @@ -120,6 +121,7 @@ config X86 select OLD_SIGSUSPEND3 if X86_32 || IA32_EMULATION select OLD_SIGACTION if X86_32 select COMPAT_OLD_SIGACTION if IA32_EMULATION + select RTC_LIB config INSTRUCTION_DECODER def_bool y @@ -188,9 +190,6 @@ config GENERIC_CALIBRATE_DELAY config ARCH_HAS_CPU_RELAX def_bool y -config ARCH_HAS_DEFAULT_IDLE - def_bool y - config ARCH_HAS_CACHE_LINE_SIZE def_bool y @@ -389,7 +388,7 @@ config X86_NUMACHIP config X86_VSMP bool "ScaleMP vSMP" - select PARAVIRT_GUEST + select HYPERVISOR_GUEST select PARAVIRT depends on X86_64 && PCI depends on X86_EXTENDED_PLATFORM @@ -596,44 +595,17 @@ config SCHED_OMIT_FRAME_POINTER If in doubt, say "Y". -menuconfig PARAVIRT_GUEST - bool "Paravirtualized guest support" - ---help--- - Say Y here to get to see options related to running Linux under - various hypervisors. This option alone does not add any kernel code. - - If you say N, all options in this submenu will be skipped and disabled. - -if PARAVIRT_GUEST - -config PARAVIRT_TIME_ACCOUNTING - bool "Paravirtual steal time accounting" - select PARAVIRT - default n +menuconfig HYPERVISOR_GUEST + bool "Linux guest support" ---help--- - Select this option to enable fine granularity task steal time - accounting. Time spent executing other tasks in parallel with - the current vCPU is discounted from the vCPU power. To account for - that, there can be a small performance impact. - - If in doubt, say N here. - -source "arch/x86/xen/Kconfig" + Say Y here to enable options for running Linux under various hyper- + visors. This option enables basic hypervisor detection and platform + setup. -config KVM_GUEST - bool "KVM Guest support (including kvmclock)" - select PARAVIRT - select PARAVIRT - select PARAVIRT_CLOCK - default y if PARAVIRT_GUEST - ---help--- - This option enables various optimizations for running under the KVM - hypervisor. It includes a paravirtualized clock, so that instead - of relying on a PIT (or probably other) emulation by the - underlying device model, the host provides the guest with - timing infrastructure such as time of day, and system time + If you say N, all options in this submenu will be skipped and + disabled, and Linux guest support won't be built in. -source "arch/x86/lguest/Kconfig" +if HYPERVISOR_GUEST config PARAVIRT bool "Enable paravirtualization code" @@ -643,6 +615,13 @@ config PARAVIRT over full virtualization. However, when run without a hypervisor the kernel is theoretically slower and slightly larger. +config PARAVIRT_DEBUG + bool "paravirt-ops debugging" + depends on PARAVIRT && DEBUG_KERNEL + ---help--- + Enable to debug paravirt_ops internals. Specifically, BUG if + a paravirt_op is missing when it is called. + config PARAVIRT_SPINLOCKS bool "Paravirtualization layer for spinlocks" depends on PARAVIRT && SMP @@ -656,17 +635,38 @@ config PARAVIRT_SPINLOCKS If you are unsure how to answer this question, answer N. -config PARAVIRT_CLOCK - bool +source "arch/x86/xen/Kconfig" -endif +config KVM_GUEST + bool "KVM Guest support (including kvmclock)" + depends on PARAVIRT + select PARAVIRT_CLOCK + default y + ---help--- + This option enables various optimizations for running under the KVM + hypervisor. It includes a paravirtualized clock, so that instead + of relying on a PIT (or probably other) emulation by the + underlying device model, the host provides the guest with + timing infrastructure such as time of day, and system time -config PARAVIRT_DEBUG - bool "paravirt-ops debugging" - depends on PARAVIRT && DEBUG_KERNEL +source "arch/x86/lguest/Kconfig" + +config PARAVIRT_TIME_ACCOUNTING + bool "Paravirtual steal time accounting" + depends on PARAVIRT + default n ---help--- - Enable to debug paravirt_ops internals. Specifically, BUG if - a paravirt_op is missing when it is called. + Select this option to enable fine granularity task steal time + accounting. Time spent executing other tasks in parallel with + the current vCPU is discounted from the vCPU power. To account for + that, there can be a small performance impact. + + If in doubt, say N here. + +config PARAVIRT_CLOCK + bool + +endif #HYPERVISOR_GUEST config NO_BOOTMEM def_bool y diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index b322f12..c198b7e 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug @@ -131,7 +131,7 @@ config DOUBLEFAULT config DEBUG_TLBFLUSH bool "Set upper limit of TLB entries to flush one-by-one" - depends on DEBUG_KERNEL && (X86_64 || X86_INVLPG) + depends on DEBUG_KERNEL ---help--- X86-only for now. @@ -292,20 +292,6 @@ config OPTIMIZE_INLINING If unsure, say N. -config DEBUG_STRICT_USER_COPY_CHECKS - bool "Strict copy size checks" - depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING - ---help--- - Enabling this option turns a certain set of sanity checks for user - copy operations into compile time failures. - - The copy_from_user() etc checks are there to help test if there - are sufficient security checks on the length argument of - the copy operation, by having gcc prove that the argument is - within bounds. - - If unsure, or if you run an older (pre 4.4) gcc, say N. - config DEBUG_NMI_SELFTEST bool "NMI Selftest" depends on DEBUG_KERNEL && X86_LOCAL_APIC diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c index 8615f75..35ee62f 100644 --- a/arch/x86/boot/compressed/eboot.c +++ b/arch/x86/boot/compressed/eboot.c @@ -258,7 +258,7 @@ static efi_status_t setup_efi_vars(struct boot_params *params) u64 store_size, remaining_size, var_size; efi_status_t status; - if (!sys_table->runtime->query_variable_info) + if (sys_table->runtime->hdr.revision < EFI_2_00_SYSTEM_TABLE_REVISION) return EFI_UNSUPPORTED; data = (struct setup_data *)(unsigned long)params->hdr.setup_data; @@ -266,7 +266,7 @@ static efi_status_t setup_efi_vars(struct boot_params *params) while (data && data->next) data = (struct setup_data *)(unsigned long)data->next; - status = efi_call_phys4(sys_table->runtime->query_variable_info, + status = efi_call_phys4((void *)sys_table->runtime->query_variable_info, EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS, &store_size, diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index c1d383d..16f24e6 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -52,7 +52,7 @@ ENTRY(startup_32) jnz 1f cli - movl $(__KERNEL_DS), %eax + movl $(__BOOT_DS), %eax movl %eax, %ds movl %eax, %es movl %eax, %ss diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile index 455646e..e785b42 100644 --- a/arch/x86/ia32/Makefile +++ b/arch/x86/ia32/Makefile @@ -5,9 +5,6 @@ obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o obj-$(CONFIG_IA32_EMULATION) += nosyscall.o syscall_ia32.o -sysv-$(CONFIG_SYSVIPC) := ipc32.o -obj-$(CONFIG_IA32_EMULATION) += $(sysv-y) - obj-$(CONFIG_IA32_AOUT) += ia32_aout.o audit-class-$(CONFIG_AUDIT) := audit.o diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c index 03abf9b..81e94d9 100644 --- a/arch/x86/ia32/ia32_aout.c +++ b/arch/x86/ia32/ia32_aout.c @@ -162,7 +162,6 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file, fs = get_fs(); set_fs(KERNEL_DS); has_dumped = 1; - current->flags |= PF_DUMPCORE; strncpy(dump.u_comm, current->comm, sizeof(current->comm)); dump.u_ar0 = offsetof(struct user32, regs); dump.signal = signr; diff --git a/arch/x86/ia32/ipc32.c b/arch/x86/ia32/ipc32.c deleted file mode 100644 index 29cdcd0..0000000 --- a/arch/x86/ia32/ipc32.c +++ /dev/null @@ -1,54 +0,0 @@ -#include <linux/kernel.h> -#include <linux/spinlock.h> -#include <linux/list.h> -#include <linux/syscalls.h> -#include <linux/time.h> -#include <linux/sem.h> -#include <linux/msg.h> -#include <linux/shm.h> -#include <linux/ipc.h> -#include <linux/compat.h> -#include <asm/sys_ia32.h> - -asmlinkage long sys32_ipc(u32 call, int first, int second, int third, - compat_uptr_t ptr, u32 fifth) -{ - int version; - - version = call >> 16; /* hack for backward compatibility */ - call &= 0xffff; - - switch (call) { - case SEMOP: - /* struct sembuf is the same on 32 and 64bit :)) */ - return sys_semtimedop(first, compat_ptr(ptr), second, NULL); - case SEMTIMEDOP: - return compat_sys_semtimedop(first, compat_ptr(ptr), second, - compat_ptr(fifth)); - case SEMGET: - return sys_semget(first, second, third); - case SEMCTL: - return compat_sys_semctl(first, second, third, compat_ptr(ptr)); - - case MSGSND: - return compat_sys_msgsnd(first, second, third, compat_ptr(ptr)); - case MSGRCV: - return compat_sys_msgrcv(first, second, fifth, third, - version, compat_ptr(ptr)); - case MSGGET: - return sys_msgget((key_t) first, second); - case MSGCTL: - return compat_sys_msgctl(first, second, compat_ptr(ptr)); - - case SHMAT: - return compat_sys_shmat(first, second, third, version, - compat_ptr(ptr)); - case SHMDT: - return sys_shmdt(compat_ptr(ptr)); - case SHMGET: - return sys_shmget(first, (unsigned)second, third); - case SHMCTL: - return compat_sys_shmctl(first, second, compat_ptr(ptr)); - } - return -ENOSYS; -} diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c index ad7a20c..4e4907c 100644 --- a/arch/x86/ia32/sys_ia32.c +++ b/arch/x86/ia32/sys_ia32.c @@ -166,12 +166,6 @@ asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *arg) a.offset>>PAGE_SHIFT); } -asmlinkage long sys32_mprotect(unsigned long start, size_t len, - unsigned long prot) -{ - return sys_mprotect(start, len, prot); -} - asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int __user *stat_addr, int options) { @@ -194,35 +188,10 @@ asmlinkage long sys32_pwrite(unsigned int fd, const char __user *ubuf, } -asmlinkage long sys32_sendfile(int out_fd, int in_fd, - compat_off_t __user *offset, s32 count) -{ - mm_segment_t old_fs = get_fs(); - int ret; - off_t of; - - if (offset && get_user(of, offset)) - return -EFAULT; - - set_fs(KERNEL_DS); - ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, - count); - set_fs(old_fs); - - if (offset && put_user(of, offset)) - return -EFAULT; - return ret; -} - /* * Some system calls that need sign extended arguments. This could be * done by a generic wrapper. */ -long sys32_kill(int pid, int sig) -{ - return sys_kill(pid, sig); -} - long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high, __u32 len_low, __u32 len_high, int advice) { @@ -246,12 +215,6 @@ long sys32_vm86_warning(void) return -ENOSYS; } -long sys32_lookup_dcookie(u32 addr_low, u32 addr_high, - char __user *buf, size_t len) -{ - return sys_lookup_dcookie(((u64)addr_high << 32) | addr_low, buf, len); -} - asmlinkage ssize_t sys32_readahead(int fd, unsigned off_lo, unsigned off_hi, size_t count) { diff --git a/arch/x86/include/asm/bug.h b/arch/x86/include/asm/bug.h index 11e1152..2f03ff0 100644 --- a/arch/x86/include/asm/bug.h +++ b/arch/x86/include/asm/bug.h @@ -37,7 +37,4 @@ do { \ #include <asm-generic/bug.h> - -extern void show_regs_common(void); - #endif /* _ASM_X86_BUG_H */ diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h index 8d871ea..d47786a 100644 --- a/arch/x86/include/asm/cmpxchg.h +++ b/arch/x86/include/asm/cmpxchg.h @@ -35,7 +35,7 @@ extern void __add_wrong_size(void) /* * An exchange-type operation, which takes a value and a pointer, and - * returns a the old value. + * returns the old value. */ #define __xchg_op(ptr, arg, op, lock) \ ({ \ diff --git a/arch/x86/include/asm/context_tracking.h b/arch/x86/include/asm/context_tracking.h index 1616562..1fe4970 100644 --- a/arch/x86/include/asm/context_tracking.h +++ b/arch/x86/include/asm/context_tracking.h @@ -1,31 +1,10 @@ #ifndef _ASM_X86_CONTEXT_TRACKING_H #define _ASM_X86_CONTEXT_TRACKING_H -#ifndef __ASSEMBLY__ -#include <linux/context_tracking.h> -#include <asm/ptrace.h> - -static inline void exception_enter(struct pt_regs *regs) -{ - user_exit(); -} - -static inline void exception_exit(struct pt_regs *regs) -{ -#ifdef CONFIG_CONTEXT_TRACKING - if (user_mode(regs)) - user_enter(); -#endif -} - -#else /* __ASSEMBLY__ */ - #ifdef CONFIG_CONTEXT_TRACKING # define SCHEDULE_USER call schedule_user #else # define SCHEDULE_USER call schedule #endif -#endif /* !__ASSEMBLY__ */ - #endif diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 93fe929..8010ebc 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -9,6 +9,7 @@ #endif #define NCAPINTS 10 /* N 32-bit words worth of info */ +#define NBUGINTS 1 /* N 32-bit bug flags */ /* * Note: If the comment begins with a quoted string, that string is used @@ -100,6 +101,7 @@ #define X86_FEATURE_AMD_DCM (3*32+27) /* multi-node processor */ #define X86_FEATURE_APERFMPERF (3*32+28) /* APERFMPERF */ #define X86_FEATURE_EAGER_FPU (3*32+29) /* "eagerfpu" Non lazy FPU restore */ +#define X86_FEATURE_NONSTOP_TSC_S3 (3*32+30) /* TSC doesn't stop in S3 state */ /* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */ #define X86_FEATURE_XMM3 (4*32+ 0) /* "pni" SSE-3 */ @@ -168,6 +170,7 @@ #define X86_FEATURE_TOPOEXT (6*32+22) /* topology extensions CPUID leafs */ #define X86_FEATURE_PERFCTR_CORE (6*32+23) /* core performance counter extensions */ #define X86_FEATURE_PERFCTR_NB (6*32+24) /* NB performance counter extensions */ +#define X86_FEATURE_PERFCTR_L2 (6*32+28) /* L2 performance counter extensions */ /* * Auxiliary flags: Linux defined - For features scattered in various @@ -182,6 +185,7 @@ #define X86_FEATURE_PTS (7*32+ 6) /* Intel Package Thermal Status */ #define X86_FEATURE_DTHERM (7*32+ 7) /* Digital Thermal Sensor */ #define X86_FEATURE_HW_PSTATE (7*32+ 8) /* AMD HW-PState */ +#define X86_FEATURE_PROC_FEEDBACK (7*32+ 9) /* AMD ProcFeedbackInterface */ /* Virtualization flags: Linux defined, word 8 */ #define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */ @@ -216,6 +220,17 @@ #define X86_FEATURE_ADX (9*32+19) /* The ADCX and ADOX instructions */ #define X86_FEATURE_SMAP (9*32+20) /* Supervisor Mode Access Prevention */ +/* + * BUG word(s) + */ +#define X86_BUG(x) (NCAPINTS*32 + (x)) + +#define X86_BUG_F00F X86_BUG(0) /* Intel F00F */ +#define X86_BUG_FDIV X86_BUG(1) /* FPU FDIV */ +#define X86_BUG_COMA X86_BUG(2) /* Cyrix 6x86 coma */ +#define X86_BUG_AMD_TLB_MMATCH X86_BUG(3) /* AMD Erratum 383 */ +#define X86_BUG_AMD_APIC_C1E X86_BUG(4) /* AMD Erratum 400 */ + #if defined(__KERNEL__) && !defined(__ASSEMBLY__) #include <asm/asm.h> @@ -311,6 +326,7 @@ extern const char * const x86_power_flags[32]; #define cpu_has_pclmulqdq boot_cpu_has(X86_FEATURE_PCLMULQDQ) #define cpu_has_perfctr_core boot_cpu_has(X86_FEATURE_PERFCTR_CORE) #define cpu_has_perfctr_nb boot_cpu_has(X86_FEATURE_PERFCTR_NB) +#define cpu_has_perfctr_l2 boot_cpu_has(X86_FEATURE_PERFCTR_L2) #define cpu_has_cx8 boot_cpu_has(X86_FEATURE_CX8) #define cpu_has_cx16 boot_cpu_has(X86_FEATURE_CX16) #define cpu_has_eager_fpu boot_cpu_has(X86_FEATURE_EAGER_FPU) @@ -401,6 +417,13 @@ static __always_inline __pure bool __static_cpu_has(u16 bit) #define static_cpu_has(bit) boot_cpu_has(bit) #endif +#define cpu_has_bug(c, bit) cpu_has(c, (bit)) +#define set_cpu_bug(c, bit) set_cpu_cap(c, (bit)) +#define clear_cpu_bug(c, bit) clear_cpu_cap(c, (bit)); + +#define static_cpu_has_bug(bit) static_cpu_has((bit)) +#define boot_cpu_has_bug(bit) cpu_has_bug(&boot_cpu_data, (bit)) + #endif /* defined(__KERNEL__) && !defined(__ASSEMBLY__) */ #endif /* _ASM_X86_CPUFEATURE_H */ diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h index a09c285..0dc7d9e 100644 --- a/arch/x86/include/asm/fixmap.h +++ b/arch/x86/include/asm/fixmap.h @@ -104,12 +104,7 @@ enum fixed_addresses { FIX_LI_PCIA, /* Lithium PCI Bridge A */ FIX_LI_PCIB, /* Lithium PCI Bridge B */ #endif -#ifdef CONFIG_X86_F00F_BUG - FIX_F00F_IDT, /* Virtual mapping for IDT */ -#endif -#ifdef CONFIG_X86_CYCLONE_TIMER - FIX_CYCLONE_TIMER, /*cyclone timer register*/ -#endif + FIX_RO_IDT, /* Virtual mapping for read-only IDT */ #ifdef CONFIG_X86_32 FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */ FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1, diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h index bdd35db..a809121 100644 --- a/arch/x86/include/asm/hugetlb.h +++ b/arch/x86/include/asm/hugetlb.h @@ -2,6 +2,7 @@ #define _ASM_X86_HUGETLB_H #include <asm/page.h> +#include <asm-generic/hugetlb.h> static inline int is_hugepage_only_range(struct mm_struct *mm, diff --git a/arch/x86/include/asm/hypervisor.h b/arch/x86/include/asm/hypervisor.h index 86095ed..2d4b5e6 100644 --- a/arch/x86/include/asm/hypervisor.h +++ b/arch/x86/include/asm/hypervisor.h @@ -20,13 +20,11 @@ #ifndef _ASM_X86_HYPERVISOR_H #define _ASM_X86_HYPERVISOR_H +#ifdef CONFIG_HYPERVISOR_GUEST + #include <asm/kvm_para.h> #include <asm/xen/hypervisor.h> -extern void init_hypervisor(struct cpuinfo_x86 *c); -extern void init_hypervisor_platform(void); -extern bool hypervisor_x2apic_available(void); - /* * x86 hypervisor information */ @@ -55,4 +53,12 @@ extern const struct hypervisor_x86 x86_hyper_ms_hyperv; extern const struct hypervisor_x86 x86_hyper_xen_hvm; extern const struct hypervisor_x86 x86_hyper_kvm; -#endif +extern void init_hypervisor(struct cpuinfo_x86 *c); +extern void init_hypervisor_platform(void); +extern bool hypervisor_x2apic_available(void); +#else +static inline void init_hypervisor(struct cpuinfo_x86 *c) { } +static inline void init_hypervisor_platform(void) { } +static inline bool hypervisor_x2apic_available(void) { return false; } +#endif /* CONFIG_HYPERVISOR_GUEST */ +#endif /* _ASM_X86_HYPERVISOR_H */ diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index f4076af..fa5f71e 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -146,13 +146,13 @@ DECLARE_PER_CPU(struct device *, mce_device); void mce_intel_feature_init(struct cpuinfo_x86 *c); void cmci_clear(void); void cmci_reenable(void); -void cmci_rediscover(int dying); +void cmci_rediscover(void); void cmci_recheck(void); #else static inline void mce_intel_feature_init(struct cpuinfo_x86 *c) { } static inline void cmci_clear(void) {} static inline void cmci_reenable(void) {} -static inline void cmci_rediscover(int dying) {} +static inline void cmci_rediscover(void) {} static inline void cmci_recheck(void) {} #endif diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h index 9264802..cb75028 100644 --- a/arch/x86/include/asm/msr.h +++ b/arch/x86/include/asm/msr.h @@ -137,11 +137,11 @@ static inline unsigned long long native_read_pmc(int counter) * pointer indirection), this allows gcc to optimize better */ -#define rdmsr(msr, val1, val2) \ +#define rdmsr(msr, low, high) \ do { \ u64 __val = native_read_msr((msr)); \ - (void)((val1) = (u32)__val); \ - (void)((val2) = (u32)(__val >> 32)); \ + (void)((low) = (u32)__val); \ + (void)((high) = (u32)(__val >> 32)); \ } while (0) static inline void wrmsr(unsigned msr, unsigned low, unsigned high) @@ -162,12 +162,12 @@ static inline int wrmsr_safe(unsigned msr, unsigned low, unsigned high) } /* rdmsr with exception handling */ -#define rdmsr_safe(msr, p1, p2) \ +#define rdmsr_safe(msr, low, high) \ ({ \ int __err; \ u64 __val = native_read_msr_safe((msr), &__err); \ - (*p1) = (u32)__val; \ - (*p2) = (u32)(__val >> 32); \ + (*low) = (u32)__val; \ + (*high) = (u32)(__val >> 32); \ __err; \ }) @@ -208,7 +208,7 @@ do { \ #define wrmsrl_safe(msr, val) wrmsr_safe((msr), (u32)(val), \ (u32)((val) >> 32)) -#define write_tsc(val1, val2) wrmsr(MSR_IA32_TSC, (val1), (val2)) +#define write_tsc(low, high) wrmsr(MSR_IA32_TSC, (low), (high)) #define write_rdtscp_aux(val) wrmsr(MSR_TSC_AUX, (val), 0) diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h index 8b491e6..6c896fb 100644 --- a/arch/x86/include/asm/page_64_types.h +++ b/arch/x86/include/asm/page_64_types.h @@ -48,6 +48,5 @@ * arch/x86/kernel/head_64.S), and it is mapped here: */ #define KERNEL_IMAGE_SIZE (512 * 1024 * 1024) -#define KERNEL_IMAGE_START _AC(0xffffffff80000000, UL) #endif /* _ASM_X86_PAGE_64_DEFS_H */ diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h index 7361e47..cfdc9ee 100644 --- a/arch/x86/include/asm/paravirt.h +++ b/arch/x86/include/asm/paravirt.h @@ -262,10 +262,6 @@ static inline void set_ldt(const void *addr, unsigned entries) { PVOP_VCALL2(pv_cpu_ops.set_ldt, addr, entries); } -static inline void store_gdt(struct desc_ptr *dtr) -{ - PVOP_VCALL1(pv_cpu_ops.store_gdt, dtr); -} static inline void store_idt(struct desc_ptr *dtr) { PVOP_VCALL1(pv_cpu_ops.store_idt, dtr); diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h index b3b0ec1..0db1fca 100644 --- a/arch/x86/include/asm/paravirt_types.h +++ b/arch/x86/include/asm/paravirt_types.h @@ -123,7 +123,7 @@ struct pv_cpu_ops { void (*load_tr_desc)(void); void (*load_gdt)(const struct desc_ptr *); void (*load_idt)(const struct desc_ptr *); - void (*store_gdt)(struct desc_ptr *); + /* store_gdt has been removed. */ void (*store_idt)(struct desc_ptr *); void (*set_ldt)(const void *desc, unsigned entries); unsigned long (*store_tr)(void); diff --git a/arch/x86/include/asm/perf_event_p4.h b/arch/x86/include/asm/perf_event_p4.h index 4f7e67e..85e13cc 100644 --- a/arch/x86/include/asm/perf_event_p4.h +++ b/arch/x86/include/asm/perf_event_p4.h @@ -24,45 +24,45 @@ #define ARCH_P4_CNTRVAL_MASK ((1ULL << ARCH_P4_CNTRVAL_BITS) - 1) #define ARCH_P4_UNFLAGGED_BIT ((1ULL) << (ARCH_P4_CNTRVAL_BITS - 1)) -#define P4_ESCR_EVENT_MASK 0x7e000000U +#define P4_ESCR_EVENT_MASK 0x7e000000ULL #define P4_ESCR_EVENT_SHIFT 25 -#define P4_ESCR_EVENTMASK_MASK 0x01fffe00U +#define P4_ESCR_EVENTMASK_MASK 0x01fffe00ULL #define P4_ESCR_EVENTMASK_SHIFT 9 -#define P4_ESCR_TAG_MASK 0x000001e0U +#define P4_ESCR_TAG_MASK 0x000001e0ULL #define P4_ESCR_TAG_SHIFT 5 -#define P4_ESCR_TAG_ENABLE 0x00000010U -#define P4_ESCR_T0_OS 0x00000008U -#define P4_ESCR_T0_USR 0x00000004U -#define P4_ESCR_T1_OS 0x00000002U -#define P4_ESCR_T1_USR 0x00000001U +#define P4_ESCR_TAG_ENABLE 0x00000010ULL +#define P4_ESCR_T0_OS 0x00000008ULL +#define P4_ESCR_T0_USR 0x00000004ULL +#define P4_ESCR_T1_OS 0x00000002ULL +#define P4_ESCR_T1_USR 0x00000001ULL #define P4_ESCR_EVENT(v) ((v) << P4_ESCR_EVENT_SHIFT) #define P4_ESCR_EMASK(v) ((v) << P4_ESCR_EVENTMASK_SHIFT) #define P4_ESCR_TAG(v) ((v) << P4_ESCR_TAG_SHIFT) -#define P4_CCCR_OVF 0x80000000U -#define P4_CCCR_CASCADE 0x40000000U -#define P4_CCCR_OVF_PMI_T0 0x04000000U -#define P4_CCCR_OVF_PMI_T1 0x08000000U -#define P4_CCCR_FORCE_OVF 0x02000000U -#define P4_CCCR_EDGE 0x01000000U -#define P4_CCCR_THRESHOLD_MASK 0x00f00000U +#define P4_CCCR_OVF 0x80000000ULL +#define P4_CCCR_CASCADE 0x40000000ULL +#define P4_CCCR_OVF_PMI_T0 0x04000000ULL +#define P4_CCCR_OVF_PMI_T1 0x08000000ULL +#define P4_CCCR_FORCE_OVF 0x02000000ULL +#define P4_CCCR_EDGE 0x01000000ULL +#define P4_CCCR_THRESHOLD_MASK 0x00f00000ULL #define P4_CCCR_THRESHOLD_SHIFT 20 -#define P4_CCCR_COMPLEMENT 0x00080000U -#define P4_CCCR_COMPARE 0x00040000U -#define P4_CCCR_ESCR_SELECT_MASK 0x0000e000U +#define P4_CCCR_COMPLEMENT 0x00080000ULL +#define P4_CCCR_COMPARE 0x00040000ULL +#define P4_CCCR_ESCR_SELECT_MASK 0x0000e000ULL #define P4_CCCR_ESCR_SELECT_SHIFT 13 -#define P4_CCCR_ENABLE 0x00001000U -#define P4_CCCR_THREAD_SINGLE 0x00010000U -#define P4_CCCR_THREAD_BOTH 0x00020000U -#define P4_CCCR_THREAD_ANY 0x00030000U -#define P4_CCCR_RESERVED 0x00000fffU +#define P4_CCCR_ENABLE 0x00001000ULL +#define P4_CCCR_THREAD_SINGLE 0x00010000ULL +#define P4_CCCR_THREAD_BOTH 0x00020000ULL +#define P4_CCCR_THREAD_ANY 0x00030000ULL +#define P4_CCCR_RESERVED 0x00000fffULL #define P4_CCCR_THRESHOLD(v) ((v) << P4_CCCR_THRESHOLD_SHIFT) #define P4_CCCR_ESEL(v) ((v) << P4_CCCR_ESCR_SELECT_SHIFT) #define P4_GEN_ESCR_EMASK(class, name, bit) \ - class##__##name = ((1 << bit) << P4_ESCR_EVENTMASK_SHIFT) + class##__##name = ((1ULL << bit) << P4_ESCR_EVENTMASK_SHIFT) #define P4_ESCR_EMASK_BIT(class, name) class##__##name /* @@ -107,7 +107,7 @@ * P4_PEBS_CONFIG_MASK and related bits on * modification.) */ -#define P4_CONFIG_ALIASABLE (1 << 9) +#define P4_CONFIG_ALIASABLE (1ULL << 9) /* * The bits we allow to pass for RAW events @@ -784,17 +784,17 @@ enum P4_ESCR_EMASKS { * Note we have UOP and PEBS bits reserved for now * just in case if we will need them once */ -#define P4_PEBS_CONFIG_ENABLE (1 << 7) -#define P4_PEBS_CONFIG_UOP_TAG (1 << 8) -#define P4_PEBS_CONFIG_METRIC_MASK 0x3f -#define P4_PEBS_CONFIG_MASK 0xff +#define P4_PEBS_CONFIG_ENABLE (1ULL << 7) +#define P4_PEBS_CONFIG_UOP_TAG (1ULL << 8) +#define P4_PEBS_CONFIG_METRIC_MASK 0x3FLL +#define P4_PEBS_CONFIG_MASK 0xFFLL /* * mem: Only counters MSR_IQ_COUNTER4 (16) and * MSR_IQ_COUNTER5 (17) are allowed for PEBS sampling */ -#define P4_PEBS_ENABLE 0x02000000U -#define P4_PEBS_ENABLE_UOP_TAG 0x01000000U +#define P4_PEBS_ENABLE 0x02000000ULL +#define P4_PEBS_ENABLE_UOP_TAG 0x01000000ULL #define p4_config_unpack_metric(v) (((u64)(v)) & P4_PEBS_CONFIG_METRIC_MASK) #define p4_config_unpack_pebs(v) (((u64)(v)) & P4_PEBS_CONFIG_MASK) diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h index 567b5d0..e642300 100644 --- a/arch/x86/include/asm/pgtable_types.h +++ b/arch/x86/include/asm/pgtable_types.h @@ -351,7 +351,6 @@ static inline void update_page_count(int level, unsigned long pages) { } * as a pte too. */ extern pte_t *lookup_address(unsigned long address, unsigned int *level); -extern int __split_large_page(pte_t *kpte, unsigned long address, pte_t *pbase); extern phys_addr_t slow_virt_to_phys(void *__address); #endif /* !__ASSEMBLY__ */ diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 3270116..22224b3 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -91,9 +91,6 @@ struct cpuinfo_x86 { /* Problems on some 486Dx4's and old 386's: */ char hard_math; char rfu; - char fdiv_bug; - char f00f_bug; - char coma_bug; char pad0; #else /* Number of 4K pages in DTLB/ITLB combined(in pages): */ @@ -107,7 +104,7 @@ struct cpuinfo_x86 { __u32 extended_cpuid_level; /* Maximum supported CPUID level, -1=no CPUID: */ int cpuid_level; - __u32 x86_capability[NCAPINTS]; + __u32 x86_capability[NCAPINTS + NBUGINTS]; char x86_vendor_id[16]; char x86_model_id[64]; /* in KB - valid for CPUS which support this call: */ @@ -973,26 +970,6 @@ unsigned long calc_aperfmperf_ratio(struct aperfmperf *old, return ratio; } -/* - * AMD errata checking - */ -#ifdef CONFIG_CPU_SUP_AMD -extern const int amd_erratum_383[]; -extern const int amd_erratum_400[]; -extern bool cpu_has_amd_erratum(const int *); - -#define AMD_LEGACY_ERRATUM(...) { -1, __VA_ARGS__, 0 } -#define AMD_OSVW_ERRATUM(osvw_id, ...) { osvw_id, __VA_ARGS__, 0 } -#define AMD_MODEL_RANGE(f, m_start, s_start, m_end, s_end) \ - ((f << 24) | (m_start << 16) | (s_start << 12) | (m_end << 4) | (s_end)) -#define AMD_MODEL_RANGE_FAMILY(range) (((range) >> 24) & 0xff) -#define AMD_MODEL_RANGE_START(range) (((range) >> 12) & 0xfff) -#define AMD_MODEL_RANGE_END(range) ((range) & 0xfff) - -#else -#define cpu_has_amd_erratum(x) (false) -#endif /* CONFIG_CPU_SUP_AMD */ - extern unsigned long arch_align_stack(unsigned long sp); extern void free_init_pages(char *what, unsigned long begin, unsigned long end); diff --git a/arch/x86/include/asm/suspend_32.h b/arch/x86/include/asm/suspend_32.h index 487055c..f6064b7 100644 --- a/arch/x86/include/asm/suspend_32.h +++ b/arch/x86/include/asm/suspend_32.h @@ -15,7 +15,6 @@ struct saved_context { unsigned long cr0, cr2, cr3, cr4; u64 misc_enable; bool misc_enable_saved; - struct desc_ptr gdt; struct desc_ptr idt; u16 ldt; u16 tss; diff --git a/arch/x86/include/asm/suspend_64.h b/arch/x86/include/asm/suspend_64.h index 09b0bf1..97b84e0 100644 --- a/arch/x86/include/asm/suspend_64.h +++ b/arch/x86/include/asm/suspend_64.h @@ -25,9 +25,6 @@ struct saved_context { u64 misc_enable; bool misc_enable_saved; unsigned long efer; - u16 gdt_pad; - u16 gdt_limit; - unsigned long gdt_base; u16 idt_pad; u16 idt_limit; unsigned long idt_base; diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h index 8459efc..0ef202e 100644 --- a/arch/x86/include/asm/sys_ia32.h +++ b/arch/x86/include/asm/sys_ia32.h @@ -30,23 +30,14 @@ asmlinkage long sys32_fstatat(unsigned int, const char __user *, struct stat64 __user *, int); struct mmap_arg_struct32; asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *); -asmlinkage long sys32_mprotect(unsigned long, size_t, unsigned long); - -asmlinkage long sys32_alarm(unsigned int); asmlinkage long sys32_waitpid(compat_pid_t, unsigned int __user *, int); -asmlinkage long sys32_sysfs(int, u32, u32); asmlinkage long sys32_pread(unsigned int, char __user *, u32, u32, u32); asmlinkage long sys32_pwrite(unsigned int, const char __user *, u32, u32, u32); -asmlinkage long sys32_personality(unsigned long); -asmlinkage long sys32_sendfile(int, int, compat_off_t __user *, s32); - -long sys32_kill(int, int); long sys32_fadvise64_64(int, __u32, __u32, __u32, __u32, int); long sys32_vm86_warning(void); -long sys32_lookup_dcookie(u32, u32, char __user *, size_t); asmlinkage ssize_t sys32_readahead(int, unsigned, unsigned, size_t); asmlinkage long sys32_sync_file_range(int, unsigned, unsigned, @@ -59,9 +50,6 @@ asmlinkage long sys32_fallocate(int, int, unsigned, asmlinkage long sys32_sigreturn(void); asmlinkage long sys32_rt_sigreturn(void); -/* ia32/ipc32.c */ -asmlinkage long sys32_ipc(u32, int, int, int, compat_uptr_t, u32); - asmlinkage long sys32_fanotify_mark(int, unsigned int, u32, u32, int, const char __user *); diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h index 6cf0a9c..5f87b35 100644 --- a/arch/x86/include/asm/syscalls.h +++ b/arch/x86/include/asm/syscalls.h @@ -27,8 +27,8 @@ asmlinkage int sys_modify_ldt(int, void __user *, unsigned long); long sys_rt_sigreturn(void); /* kernel/tls.c */ -asmlinkage int sys_set_thread_area(struct user_desc __user *); -asmlinkage int sys_get_thread_area(struct user_desc __user *); +asmlinkage long sys_set_thread_area(struct user_desc __user *); +asmlinkage long sys_get_thread_area(struct user_desc __user *); /* X86_32 only */ #ifdef CONFIG_X86_32 diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index 2cd056e..a1df6e8 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -241,8 +241,6 @@ static inline struct thread_info *current_thread_info(void) skip sending interrupt */ #define TS_RESTORE_SIGMASK 0x0008 /* restore signal mask in do_signal() */ -#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING) - #ifndef __ASSEMBLY__ #define HAVE_SET_RESTORE_SIGMASK 1 static inline void set_restore_sigmask(void) diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h index 3d5df1c..c2a4813 100644 --- a/arch/x86/include/asm/unistd.h +++ b/arch/x86/include/asm/unistd.h @@ -50,12 +50,4 @@ # define __ARCH_WANT_SYS_VFORK # define __ARCH_WANT_SYS_CLONE -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -# define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") - #endif /* _ASM_X86_UNISTD_H */ diff --git a/arch/x86/include/asm/uprobes.h b/arch/x86/include/asm/uprobes.h index 8ff8be7..6e51979 100644 --- a/arch/x86/include/asm/uprobes.h +++ b/arch/x86/include/asm/uprobes.h @@ -55,4 +55,5 @@ extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs); extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk); extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data); extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs); +extern unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs *regs); #endif /* _ASM_UPROBES_H */ diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h index 7a060f4..b575788 100644 --- a/arch/x86/include/uapi/asm/msr-index.h +++ b/arch/x86/include/uapi/asm/msr-index.h @@ -72,6 +72,7 @@ #define MSR_IA32_PEBS_ENABLE 0x000003f1 #define MSR_IA32_DS_AREA 0x00000600 #define MSR_IA32_PERF_CAPABILITIES 0x00000345 +#define MSR_PEBS_LD_LAT_THRESHOLD 0x000003f6 #define MSR_MTRRfix64K_00000 0x00000250 #define MSR_MTRRfix16K_80000 0x00000258 @@ -195,6 +196,10 @@ #define MSR_AMD64_IBSBRTARGET 0xc001103b #define MSR_AMD64_IBS_REG_COUNT_MAX 8 /* includes MSR_AMD64_IBSBRTARGET */ +/* Fam 16h MSRs */ +#define MSR_F16H_L2I_PERF_CTL 0xc0010230 +#define MSR_F16H_L2I_PERF_CTR 0xc0010231 + /* Fam 15h MSRs */ #define MSR_F15H_PERF_CTL 0xc0010200 #define MSR_F15H_PERF_CTR 0xc0010201 diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index 0532f5d..b44577b 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -46,7 +46,7 @@ int acpi_suspend_lowlevel(void) header->pmode_behavior = 0; #ifndef CONFIG_64BIT - store_gdt((struct desc_ptr *)&header->pmode_gdt); + native_store_gdt((struct desc_ptr *)&header->pmode_gdt); if (!rdmsr_safe(MSR_EFER, &header->pmode_efer_low, diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S index 13ab7205..d1daa66 100644 --- a/arch/x86/kernel/acpi/wakeup_32.S +++ b/arch/x86/kernel/acpi/wakeup_32.S @@ -1,4 +1,4 @@ - .section .text..page_aligned + .text #include <linux/linkage.h> #include <asm/segment.h> #include <asm/page_types.h> @@ -18,7 +18,6 @@ wakeup_pmode_return: movw %ax, %gs # reload the gdt, as we need the full 32 bit address - lgdt saved_gdt lidt saved_idt lldt saved_ldt ljmp $(__KERNEL_CS), $1f @@ -44,7 +43,6 @@ bogus_magic: save_registers: - sgdt saved_gdt sidt saved_idt sldt saved_ldt str saved_tss @@ -93,7 +91,6 @@ ENTRY(saved_magic) .long 0 ENTRY(saved_eip) .long 0 # saved registers -saved_gdt: .long 0,0 saved_idt: .long 0,0 saved_ldt: .long 0 saved_tss: .long 0 diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index ef5ccca..c15cf9a 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -271,7 +271,7 @@ void __init_or_module apply_alternatives(struct alt_instr *start, replacement = (u8 *)&a->repl_offset + a->repl_offset; BUG_ON(a->replacementlen > a->instrlen); BUG_ON(a->instrlen > sizeof(insnbuf)); - BUG_ON(a->cpuid >= NCAPINTS*32); + BUG_ON(a->cpuid >= (NCAPINTS + NBUGINTS) * 32); if (!boot_cpu_has(a->cpuid)) continue; diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c index aadf335..3048ded 100644 --- a/arch/x86/kernel/amd_nb.c +++ b/arch/x86/kernel/amd_nb.c @@ -20,12 +20,14 @@ const struct pci_device_id amd_nb_misc_ids[] = { { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_10H_NB_MISC) }, { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_NB_F3) }, { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_M10H_F3) }, + { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_NB_F3) }, {} }; EXPORT_SYMBOL(amd_nb_misc_ids); -static struct pci_device_id amd_nb_link_ids[] = { +static const struct pci_device_id amd_nb_link_ids[] = { { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_NB_F4) }, + { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_NB_F4) }, {} }; @@ -81,7 +83,6 @@ int amd_cache_northbridges(void) next_northbridge(link, amd_nb_link_ids); } - /* some CPU families (e.g. family 0x11) do not support GART */ if (boot_cpu_data.x86 == 0xf || boot_cpu_data.x86 == 0x10 || boot_cpu_data.x86 == 0x15) amd_northbridges.flags |= AMD_NB_GART; diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c index d5fd66f..fd972a3 100644 --- a/arch/x86/kernel/aperture_64.c +++ b/arch/x86/kernel/aperture_64.c @@ -87,7 +87,7 @@ static u32 __init allocate_aperture(void) */ addr = memblock_find_in_range(GART_MIN_ADDR, GART_MAX_ADDR, aper_size, aper_size); - if (!addr || addr + aper_size > GART_MAX_ADDR) { + if (!addr) { printk(KERN_ERR "Cannot allocate aperture memory hole (%lx,%uK)\n", addr, aper_size>>10); diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c index 66b5faf..53a4e27 100644 --- a/arch/x86/kernel/apm_32.c +++ b/arch/x86/kernel/apm_32.c @@ -373,7 +373,6 @@ static int apm_cpu_idle(struct cpuidle_device *dev, static struct cpuidle_driver apm_idle_driver = { .name = "apm_idle", .owner = THIS_MODULE, - .en_core_tk_irqen = 1, .states = { { /* entry 0 is for polling */ }, { /* entry 1 is for APM idle */ diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile index a0e067d..b0684e4 100644 --- a/arch/x86/kernel/cpu/Makefile +++ b/arch/x86/kernel/cpu/Makefile @@ -14,7 +14,6 @@ CFLAGS_common.o := $(nostackp) obj-y := intel_cacheinfo.o scattered.o topology.o obj-y += proc.o capflags.o powerflags.o common.o -obj-y += vmware.o hypervisor.o mshyperv.o obj-y += rdrand.o obj-y += match.o @@ -31,7 +30,7 @@ obj-$(CONFIG_CPU_SUP_UMC_32) += umc.o obj-$(CONFIG_PERF_EVENTS) += perf_event.o ifdef CONFIG_PERF_EVENTS -obj-$(CONFIG_CPU_SUP_AMD) += perf_event_amd.o +obj-$(CONFIG_CPU_SUP_AMD) += perf_event_amd.o perf_event_amd_uncore.o obj-$(CONFIG_CPU_SUP_INTEL) += perf_event_p6.o perf_event_knc.o perf_event_p4.o obj-$(CONFIG_CPU_SUP_INTEL) += perf_event_intel_lbr.o perf_event_intel_ds.o perf_event_intel.o obj-$(CONFIG_CPU_SUP_INTEL) += perf_event_intel_uncore.o @@ -42,11 +41,13 @@ obj-$(CONFIG_MTRR) += mtrr/ obj-$(CONFIG_X86_LOCAL_APIC) += perfctr-watchdog.o perf_event_amd_ibs.o +obj-$(CONFIG_HYPERVISOR_GUEST) += vmware.o hypervisor.o mshyperv.o + quiet_cmd_mkcapflags = MKCAP $@ - cmd_mkcapflags = $(PERL) $(srctree)/$(src)/mkcapflags.pl $< $@ + cmd_mkcapflags = $(CONFIG_SHELL) $(srctree)/$(src)/mkcapflags.sh $< $@ cpufeature = $(src)/../../include/asm/cpufeature.h targets += capflags.c -$(obj)/capflags.c: $(cpufeature) $(src)/mkcapflags.pl FORCE +$(obj)/capflags.c: $(cpufeature) $(src)/mkcapflags.sh FORCE $(call if_changed,mkcapflags) diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index fa96eb0..5013a48 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -20,11 +20,11 @@ static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p) { - struct cpuinfo_x86 *c = &cpu_data(smp_processor_id()); u32 gprs[8] = { 0 }; int err; - WARN_ONCE((c->x86 != 0xf), "%s should only be used on K8!\n", __func__); + WARN_ONCE((boot_cpu_data.x86 != 0xf), + "%s should only be used on K8!\n", __func__); gprs[1] = msr; gprs[7] = 0x9c5a203a; @@ -38,10 +38,10 @@ static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p) static inline int wrmsrl_amd_safe(unsigned msr, unsigned long long val) { - struct cpuinfo_x86 *c = &cpu_data(smp_processor_id()); u32 gprs[8] = { 0 }; - WARN_ONCE((c->x86 != 0xf), "%s should only be used on K8!\n", __func__); + WARN_ONCE((boot_cpu_data.x86 != 0xf), + "%s should only be used on K8!\n", __func__); gprs[0] = (u32)val; gprs[1] = msr; @@ -192,11 +192,11 @@ static void __cpuinit amd_k7_smp_check(struct cpuinfo_x86 *c) /* Athlon 660/661 is valid. */ if ((c->x86_model == 6) && ((c->x86_mask == 0) || (c->x86_mask == 1))) - goto valid_k7; + return; /* Duron 670 is valid */ if ((c->x86_model == 7) && (c->x86_mask == 0)) - goto valid_k7; + return; /* * Athlon 662, Duron 671, and Athlon >model 7 have capability @@ -209,7 +209,7 @@ static void __cpuinit amd_k7_smp_check(struct cpuinfo_x86 *c) ((c->x86_model == 7) && (c->x86_mask >= 1)) || (c->x86_model > 7)) if (cpu_has_mp) - goto valid_k7; + return; /* If we get here, not a certified SMP capable AMD system. */ @@ -220,9 +220,6 @@ static void __cpuinit amd_k7_smp_check(struct cpuinfo_x86 *c) WARN_ONCE(1, "WARNING: This combination of AMD" " processors is not suitable for SMP.\n"); add_taint(TAINT_UNSAFE_SMP, LOCKDEP_NOW_UNRELIABLE); - -valid_k7: - ; } static void __cpuinit init_amd_k7(struct cpuinfo_x86 *c) @@ -513,6 +510,10 @@ static void __cpuinit early_init_amd(struct cpuinfo_x86 *c) #endif } +static const int amd_erratum_383[]; +static const int amd_erratum_400[]; +static bool cpu_has_amd_erratum(const int *erratum); + static void __cpuinit init_amd(struct cpuinfo_x86 *c) { u32 dummy; @@ -727,8 +728,14 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) rdmsrl_safe(MSR_AMD64_BU_CFG2, &value); value &= ~(1ULL << 24); wrmsrl_safe(MSR_AMD64_BU_CFG2, value); + + if (cpu_has_amd_erratum(amd_erratum_383)) + set_cpu_bug(c, X86_BUG_AMD_TLB_MMATCH); } + if (cpu_has_amd_erratum(amd_erratum_400)) + set_cpu_bug(c, X86_BUG_AMD_APIC_C1E); + rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy); } @@ -847,8 +854,7 @@ cpu_dev_register(amd_cpu_dev); * AMD_OSVW_ERRATUM() macros. The latter is intended for newer errata that * have an OSVW id assigned, which it takes as first argument. Both take a * variable number of family-specific model-stepping ranges created by - * AMD_MODEL_RANGE(). Each erratum also has to be declared as extern const - * int[] in arch/x86/include/asm/processor.h. + * AMD_MODEL_RANGE(). * * Example: * @@ -858,16 +864,22 @@ cpu_dev_register(amd_cpu_dev); * AMD_MODEL_RANGE(0x10, 0x9, 0x0, 0x9, 0x0)); */ -const int amd_erratum_400[] = +#define AMD_LEGACY_ERRATUM(...) { -1, __VA_ARGS__, 0 } +#define AMD_OSVW_ERRATUM(osvw_id, ...) { osvw_id, __VA_ARGS__, 0 } +#define AMD_MODEL_RANGE(f, m_start, s_start, m_end, s_end) \ + ((f << 24) | (m_start << 16) | (s_start << 12) | (m_end << 4) | (s_end)) +#define AMD_MODEL_RANGE_FAMILY(range) (((range) >> 24) & 0xff) +#define AMD_MODEL_RANGE_START(range) (((range) >> 12) & 0xfff) +#define AMD_MODEL_RANGE_END(range) ((range) & 0xfff) + +static const int amd_erratum_400[] = AMD_OSVW_ERRATUM(1, AMD_MODEL_RANGE(0xf, 0x41, 0x2, 0xff, 0xf), AMD_MODEL_RANGE(0x10, 0x2, 0x1, 0xff, 0xf)); -EXPORT_SYMBOL_GPL(amd_erratum_400); -const int amd_erratum_383[] = +static const int amd_erratum_383[] = AMD_OSVW_ERRATUM(3, AMD_MODEL_RANGE(0x10, 0, 0, 0xff, 0xf)); -EXPORT_SYMBOL_GPL(amd_erratum_383); -bool cpu_has_amd_erratum(const int *erratum) +static bool cpu_has_amd_erratum(const int *erratum) { struct cpuinfo_x86 *cpu = __this_cpu_ptr(&cpu_info); int osvw_id = *erratum++; @@ -908,5 +920,3 @@ bool cpu_has_amd_erratum(const int *erratum) return false; } - -EXPORT_SYMBOL_GPL(cpu_has_amd_erratum); diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index af6455e..4112be9 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -59,7 +59,7 @@ static void __init check_fpu(void) * trap_init() enabled FXSR and company _before_ testing for FP * problems here. * - * Test for the divl bug.. + * Test for the divl bug: http://en.wikipedia.org/wiki/Fdiv_bug */ __asm__("fninit\n\t" "fldl %1\n\t" @@ -75,26 +75,12 @@ static void __init check_fpu(void) kernel_fpu_end(); - boot_cpu_data.fdiv_bug = fdiv_bug; - if (boot_cpu_data.fdiv_bug) + if (fdiv_bug) { + set_cpu_bug(&boot_cpu_data, X86_BUG_FDIV); pr_warn("Hmm, FPU with FDIV bug\n"); + } } -/* - * Check whether we are able to run this kernel safely on SMP. - * - * - i386 is no longer supported. - * - In order to run on anything without a TSC, we need to be - * compiled for a i486. - */ - -static void __init check_config(void) -{ - if (boot_cpu_data.x86 < 4) - panic("Kernel requires i486+ for 'invlpg' and other features"); -} - - void __init check_bugs(void) { identify_boot_cpu(); @@ -102,7 +88,17 @@ void __init check_bugs(void) pr_info("CPU: "); print_cpu_info(&boot_cpu_data); #endif - check_config(); + + /* + * Check whether we are able to run this kernel safely on SMP. + * + * - i386 is no longer supported. + * - In order to run on anything without a TSC, we need to be + * compiled for a i486. + */ + if (boot_cpu_data.x86 < 4) + panic("Kernel requires i486+ for 'invlpg' and other features"); + init_utsname()->machine[1] = '0' + (boot_cpu_data.x86 > 6 ? 6 : boot_cpu_data.x86); alternative_instructions(); diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index d814772..22018f7 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -920,6 +920,10 @@ static void __cpuinit identify_cpu(struct cpuinfo_x86 *c) /* AND the already accumulated flags with these */ for (i = 0; i < NCAPINTS; i++) boot_cpu_data.x86_capability[i] &= c->x86_capability[i]; + + /* OR, i.e. replicate the bug flags */ + for (i = NCAPINTS; i < NCAPINTS + NBUGINTS; i++) + c->x86_capability[i] |= boot_cpu_data.x86_capability[i]; } /* Init Machine Check Exception if available. */ diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c index 4fbd384..d048d5c 100644 --- a/arch/x86/kernel/cpu/cyrix.c +++ b/arch/x86/kernel/cpu/cyrix.c @@ -249,7 +249,7 @@ static void __cpuinit init_cyrix(struct cpuinfo_x86 *c) /* Emulate MTRRs using Cyrix's ARRs. */ set_cpu_cap(c, X86_FEATURE_CYRIX_ARR); /* 6x86's contain this bug */ - c->coma_bug = 1; + set_cpu_bug(c, X86_BUG_COMA); break; case 4: /* MediaGX/GXm or Geode GXM/GXLV/GX1 */ @@ -317,7 +317,8 @@ static void __cpuinit init_cyrix(struct cpuinfo_x86 *c) /* Enable MMX extensions (App note 108) */ setCx86_old(CX86_CCR7, getCx86_old(CX86_CCR7)|1); } else { - c->coma_bug = 1; /* 6x86MX, it has the bug. */ + /* A 6x86MX - it has the bug. */ + set_cpu_bug(c, X86_BUG_COMA); } tmp = (!(dir0_lsn & 7) || dir0_lsn & 1) ? 2 : 0; Cx86_cb[tmp] = cyrix_model_mult2[dir0_lsn & 7]; diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 1905ce9..9b0c441 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -96,6 +96,18 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c) sched_clock_stable = 1; } + /* Penwell and Cloverview have the TSC which doesn't sleep on S3 */ + if (c->x86 == 6) { + switch (c->x86_model) { + case 0x27: /* Penwell */ + case 0x35: /* Cloverview */ + set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC_S3); + break; + default: + break; + } + } + /* * There is a known erratum on Pentium III and Core Solo * and Core Duo CPUs. @@ -164,20 +176,6 @@ int __cpuinit ppro_with_ram_bug(void) return 0; } -#ifdef CONFIG_X86_F00F_BUG -static void __cpuinit trap_init_f00f_bug(void) -{ - __set_fixmap(FIX_F00F_IDT, __pa_symbol(idt_table), PAGE_KERNEL_RO); - - /* - * Update the IDT descriptor and reload the IDT so that - * it uses the read-only mapped virtual address. - */ - idt_descr.address = fix_to_virt(FIX_F00F_IDT); - load_idt(&idt_descr); -} -#endif - static void __cpuinit intel_smp_check(struct cpuinfo_x86 *c) { /* calling is from identify_secondary_cpu() ? */ @@ -206,16 +204,14 @@ static void __cpuinit intel_workarounds(struct cpuinfo_x86 *c) /* * All current models of Pentium and Pentium with MMX technology CPUs * have the F0 0F bug, which lets nonprivileged users lock up the - * system. - * Note that the workaround only should be initialized once... + * system. Announce that the fault handler will be checking for it. */ - c->f00f_bug = 0; + clear_cpu_bug(c, X86_BUG_F00F); if (!paravirt_enabled() && c->x86 == 5) { static int f00f_workaround_enabled; - c->f00f_bug = 1; + set_cpu_bug(c, X86_BUG_F00F); if (!f00f_workaround_enabled) { - trap_init_f00f_bug(); printk(KERN_NOTICE "Intel Pentium with F0 0F bug - workaround enabled.\n"); f00f_workaround_enabled = 1; } diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 7bc1263..9239504 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -2358,7 +2358,7 @@ mce_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu) if (action == CPU_POST_DEAD) { /* intentionally ignoring frozen here */ - cmci_rediscover(cpu); + cmci_rediscover(); } return NOTIFY_OK; diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c index 1ac581f..9cb5276 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_amd.c +++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c @@ -33,7 +33,6 @@ #include <asm/mce.h> #include <asm/msr.h> -#define NR_BANKS 6 #define NR_BLOCKS 9 #define THRESHOLD_MAX 0xFFF #define INT_TYPE_APIC 0x00020000 @@ -57,12 +56,7 @@ static const char * const th_names[] = { "execution_unit", }; -static DEFINE_PER_CPU(struct threshold_bank * [NR_BANKS], threshold_banks); - -static unsigned char shared_bank[NR_BANKS] = { - 0, 0, 0, 0, 1 -}; - +static DEFINE_PER_CPU(struct threshold_bank **, threshold_banks); static DEFINE_PER_CPU(unsigned char, bank_map); /* see which banks are on */ static void amd_threshold_interrupt(void); @@ -79,6 +73,12 @@ struct thresh_restart { u16 old_limit; }; +static inline bool is_shared_bank(int bank) +{ + /* Bank 4 is for northbridge reporting and is thus shared */ + return (bank == 4); +} + static const char * const bank4_names(struct threshold_block *b) { switch (b->address) { @@ -214,7 +214,7 @@ void mce_amd_feature_init(struct cpuinfo_x86 *c) unsigned int bank, block; int offset = -1; - for (bank = 0; bank < NR_BANKS; ++bank) { + for (bank = 0; bank < mca_cfg.banks; ++bank) { for (block = 0; block < NR_BLOCKS; ++block) { if (block == 0) address = MSR_IA32_MC0_MISC + bank * 4; @@ -276,7 +276,7 @@ static void amd_threshold_interrupt(void) mce_setup(&m); /* assume first bank caused it */ - for (bank = 0; bank < NR_BANKS; ++bank) { + for (bank = 0; bank < mca_cfg.banks; ++bank) { if (!(per_cpu(bank_map, m.cpu) & (1 << bank))) continue; for (block = 0; block < NR_BLOCKS; ++block) { @@ -467,7 +467,7 @@ static __cpuinit int allocate_threshold_blocks(unsigned int cpu, u32 low, high; int err; - if ((bank >= NR_BANKS) || (block >= NR_BLOCKS)) + if ((bank >= mca_cfg.banks) || (block >= NR_BLOCKS)) return 0; if (rdmsr_safe_on_cpu(cpu, address, &low, &high)) @@ -575,7 +575,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank) const char *name = th_names[bank]; int err = 0; - if (shared_bank[bank]) { + if (is_shared_bank(bank)) { nb = node_to_amd_nb(amd_get_nb_id(cpu)); /* threshold descriptor already initialized on this node? */ @@ -609,7 +609,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank) per_cpu(threshold_banks, cpu)[bank] = b; - if (shared_bank[bank]) { + if (is_shared_bank(bank)) { atomic_set(&b->cpus, 1); /* nb is already initialized, see above */ @@ -635,9 +635,17 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank) static __cpuinit int threshold_create_device(unsigned int cpu) { unsigned int bank; + struct threshold_bank **bp; int err = 0; - for (bank = 0; bank < NR_BANKS; ++bank) { + bp = kzalloc(sizeof(struct threshold_bank *) * mca_cfg.banks, + GFP_KERNEL); + if (!bp) + return -ENOMEM; + + per_cpu(threshold_banks, cpu) = bp; + + for (bank = 0; bank < mca_cfg.banks; ++bank) { if (!(per_cpu(bank_map, cpu) & (1 << bank))) continue; err = threshold_create_bank(cpu, bank); @@ -691,7 +699,7 @@ static void threshold_remove_bank(unsigned int cpu, int bank) if (!b->blocks) goto free_out; - if (shared_bank[bank]) { + if (is_shared_bank(bank)) { if (!atomic_dec_and_test(&b->cpus)) { __threshold_remove_blocks(b); per_cpu(threshold_banks, cpu)[bank] = NULL; @@ -719,11 +727,12 @@ static void threshold_remove_device(unsigned int cpu) { unsigned int bank; - for (bank = 0; bank < NR_BANKS; ++bank) { + for (bank = 0; bank < mca_cfg.banks; ++bank) { if (!(per_cpu(bank_map, cpu) & (1 << bank))) continue; threshold_remove_bank(cpu, bank); } + kfree(per_cpu(threshold_banks, cpu)); } /* get notified when a cpu comes on/off */ diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel.c b/arch/x86/kernel/cpu/mcheck/mce_intel.c index 402c454..ae1697c 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_intel.c +++ b/arch/x86/kernel/cpu/mcheck/mce_intel.c @@ -285,39 +285,24 @@ void cmci_clear(void) raw_spin_unlock_irqrestore(&cmci_discover_lock, flags); } -static long cmci_rediscover_work_func(void *arg) +static void cmci_rediscover_work_func(void *arg) { int banks; /* Recheck banks in case CPUs don't all have the same */ if (cmci_supported(&banks)) cmci_discover(banks); - - return 0; } -/* - * After a CPU went down cycle through all the others and rediscover - * Must run in process context. - */ -void cmci_rediscover(int dying) +/* After a CPU went down cycle through all the others and rediscover */ +void cmci_rediscover(void) { - int cpu, banks; + int banks; if (!cmci_supported(&banks)) return; - for_each_online_cpu(cpu) { - if (cpu == dying) - continue; - - if (cpu == smp_processor_id()) { - cmci_rediscover_work_func(NULL); - continue; - } - - work_on_cpu(cpu, cmci_rediscover_work_func, NULL); - } + on_each_cpu(cmci_rediscover_work_func, NULL, 1); } /* diff --git a/arch/x86/kernel/cpu/mkcapflags.pl b/arch/x86/kernel/cpu/mkcapflags.pl deleted file mode 100644 index 091972e..0000000 --- a/arch/x86/kernel/cpu/mkcapflags.pl +++ /dev/null @@ -1,48 +0,0 @@ -#!/usr/bin/perl -w -# -# Generate the x86_cap_flags[] array from include/asm-x86/cpufeature.h -# - -($in, $out) = @ARGV; - -open(IN, "< $in\0") or die "$0: cannot open: $in: $!\n"; -open(OUT, "> $out\0") or die "$0: cannot create: $out: $!\n"; - -print OUT "#ifndef _ASM_X86_CPUFEATURE_H\n"; -print OUT "#include <asm/cpufeature.h>\n"; -print OUT "#endif\n"; -print OUT "\n"; -print OUT "const char * const x86_cap_flags[NCAPINTS*32] = {\n"; - -%features = (); -$err = 0; - -while (defined($line = <IN>)) { - if ($line =~ /^\s*\#\s*define\s+(X86_FEATURE_(\S+))\s+(.*)$/) { - $macro = $1; - $feature = "\L$2"; - $tail = $3; - if ($tail =~ /\/\*\s*\"([^"]*)\".*\*\//) { - $feature = "\L$1"; - } - - next if ($feature eq ''); - - if ($features{$feature}++) { - print STDERR "$in: duplicate feature name: $feature\n"; - $err++; - } - printf OUT "\t%-32s = \"%s\",\n", "[$macro]", $feature; - } -} -print OUT "};\n"; - -close(IN); -close(OUT); - -if ($err) { - unlink($out); - exit(1); -} - -exit(0); diff --git a/arch/x86/kernel/cpu/mkcapflags.sh b/arch/x86/kernel/cpu/mkcapflags.sh new file mode 100644 index 0000000..2bf6165 --- /dev/null +++ b/arch/x86/kernel/cpu/mkcapflags.sh @@ -0,0 +1,41 @@ +#!/bin/sh +# +# Generate the x86_cap_flags[] array from include/asm/cpufeature.h +# + +IN=$1 +OUT=$2 + +TABS="$(printf '\t\t\t\t\t')" +trap 'rm "$OUT"' EXIT + +( + echo "#ifndef _ASM_X86_CPUFEATURE_H" + echo "#include <asm/cpufeature.h>" + echo "#endif" + echo "" + echo "const char * const x86_cap_flags[NCAPINTS*32] = {" + + # Iterate through any input lines starting with #define X86_FEATURE_ + sed -n -e 's/\t/ /g' -e 's/^ *# *define *X86_FEATURE_//p' $IN | + while read i + do + # Name is everything up to the first whitespace + NAME="$(echo "$i" | sed 's/ .*//')" + + # If the /* comment */ starts with a quote string, grab that. + VALUE="$(echo "$i" | sed -n 's@.*/\* *\("[^"]*"\).*\*/@\1@p')" + [ -z "$VALUE" ] && VALUE="\"$NAME\"" + [ "$VALUE" == '""' ] && continue + + # Name is uppercase, VALUE is all lowercase + VALUE="$(echo "$VALUE" | tr A-Z a-z)" + + TABCOUNT=$(( ( 5*8 - 14 - $(echo "$NAME" | wc -c) ) / 8 )) + printf "\t[%s]%.*s = %s,\n" \ + "X86_FEATURE_$NAME" "$TABCOUNT" "$TABS" "$VALUE" + done + echo "};" +) > $OUT + +trap - EXIT diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index bf0f01a..1025f3c 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -180,8 +180,9 @@ static void release_pmc_hardware(void) {} static bool check_hw_exists(void) { - u64 val, val_new = ~0; - int i, reg, ret = 0; + u64 val, val_fail, val_new= ~0; + int i, reg, reg_fail, ret = 0; + int bios_fail = 0; /* * Check to see if the BIOS enabled any of the counters, if so @@ -192,8 +193,11 @@ static bool check_hw_exists(void) ret = rdmsrl_safe(reg, &val); if (ret) goto msr_fail; - if (val & ARCH_PERFMON_EVENTSEL_ENABLE) - goto bios_fail; + if (val & ARCH_PERFMON_EVENTSEL_ENABLE) { + bios_fail = 1; + val_fail = val; + reg_fail = reg; + } } if (x86_pmu.num_counters_fixed) { @@ -202,8 +206,11 @@ static bool check_hw_exists(void) if (ret) goto msr_fail; for (i = 0; i < x86_pmu.num_counters_fixed; i++) { - if (val & (0x03 << i*4)) - goto bios_fail; + if (val & (0x03 << i*4)) { + bios_fail = 1; + val_fail = val; + reg_fail = reg; + } } } @@ -221,14 +228,13 @@ static bool check_hw_exists(void) if (ret || val != val_new) goto msr_fail; - return true; - -bios_fail: /* * We still allow the PMU driver to operate: */ - printk(KERN_CONT "Broken BIOS detected, complain to your hardware vendor.\n"); - printk(KERN_ERR FW_BUG "the BIOS has corrupted hw-PMU resources (MSR %x is %Lx)\n", reg, val); + if (bios_fail) { + printk(KERN_CONT "Broken BIOS detected, complain to your hardware vendor.\n"); + printk(KERN_ERR FW_BUG "the BIOS has corrupted hw-PMU resources (MSR %x is %Lx)\n", reg_fail, val_fail); + } return true; @@ -1316,9 +1322,16 @@ static struct attribute_group x86_pmu_format_group = { */ static void __init filter_events(struct attribute **attrs) { + struct device_attribute *d; + struct perf_pmu_events_attr *pmu_attr; int i, j; for (i = 0; attrs[i]; i++) { + d = (struct device_attribute *)attrs[i]; + pmu_attr = container_of(d, struct perf_pmu_events_attr, attr); + /* str trumps id */ + if (pmu_attr->event_str) + continue; if (x86_pmu.event_map(i)) continue; @@ -1330,22 +1343,45 @@ static void __init filter_events(struct attribute **attrs) } } -static ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr, +/* Merge two pointer arrays */ +static __init struct attribute **merge_attr(struct attribute **a, struct attribute **b) +{ + struct attribute **new; + int j, i; + + for (j = 0; a[j]; j++) + ; + for (i = 0; b[i]; i++) + j++; + j++; + + new = kmalloc(sizeof(struct attribute *) * j, GFP_KERNEL); + if (!new) + return NULL; + + j = 0; + for (i = 0; a[i]; i++) + new[j++] = a[i]; + for (i = 0; b[i]; i++) + new[j++] = b[i]; + new[j] = NULL; + + return new; +} + +ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr, char *page) { struct perf_pmu_events_attr *pmu_attr = \ container_of(attr, struct perf_pmu_events_attr, attr); - u64 config = x86_pmu.event_map(pmu_attr->id); - return x86_pmu.events_sysfs_show(page, config); -} -#define EVENT_VAR(_id) event_attr_##_id -#define EVENT_PTR(_id) &event_attr_##_id.attr.attr + /* string trumps id */ + if (pmu_attr->event_str) + return sprintf(page, "%s", pmu_attr->event_str); -#define EVENT_ATTR(_name, _id) \ - PMU_EVENT_ATTR(_name, EVENT_VAR(_id), PERF_COUNT_HW_##_id, \ - events_sysfs_show) + return x86_pmu.events_sysfs_show(page, config); +} EVENT_ATTR(cpu-cycles, CPU_CYCLES ); EVENT_ATTR(instructions, INSTRUCTIONS ); @@ -1459,16 +1495,27 @@ static int __init init_hw_perf_events(void) unconstrained = (struct event_constraint) __EVENT_CONSTRAINT(0, (1ULL << x86_pmu.num_counters) - 1, - 0, x86_pmu.num_counters, 0); + 0, x86_pmu.num_counters, 0, 0); x86_pmu.attr_rdpmc = 1; /* enable userspace RDPMC usage by default */ x86_pmu_format_group.attrs = x86_pmu.format_attrs; + if (x86_pmu.event_attrs) + x86_pmu_events_group.attrs = x86_pmu.event_attrs; + if (!x86_pmu.events_sysfs_show) x86_pmu_events_group.attrs = &empty_attrs; else filter_events(x86_pmu_events_group.attrs); + if (x86_pmu.cpu_events) { + struct attribute **tmp; + + tmp = merge_attr(x86_pmu_events_group.attrs, x86_pmu.cpu_events); + if (!WARN_ON(!tmp)) + x86_pmu_events_group.attrs = tmp; + } + pr_info("... version: %d\n", x86_pmu.version); pr_info("... bit width: %d\n", x86_pmu.cntval_bits); pr_info("... generic registers: %d\n", x86_pmu.num_counters); diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h index 7f5c75c..ba9aadf 100644 --- a/arch/x86/kernel/cpu/perf_event.h +++ b/arch/x86/kernel/cpu/perf_event.h @@ -46,6 +46,7 @@ enum extra_reg_type { EXTRA_REG_RSP_0 = 0, /* offcore_response_0 */ EXTRA_REG_RSP_1 = 1, /* offcore_response_1 */ EXTRA_REG_LBR = 2, /* lbr_select */ + EXTRA_REG_LDLAT = 3, /* ld_lat_threshold */ EXTRA_REG_MAX /* number of entries needed */ }; @@ -59,7 +60,13 @@ struct event_constraint { u64 cmask; int weight; int overlap; + int flags; }; +/* + * struct event_constraint flags + */ +#define PERF_X86_EVENT_PEBS_LDLAT 0x1 /* ld+ldlat data address sampling */ +#define PERF_X86_EVENT_PEBS_ST 0x2 /* st data address sampling */ struct amd_nb { int nb_id; /* NorthBridge id */ @@ -170,16 +177,17 @@ struct cpu_hw_events { void *kfree_on_online; }; -#define __EVENT_CONSTRAINT(c, n, m, w, o) {\ +#define __EVENT_CONSTRAINT(c, n, m, w, o, f) {\ { .idxmsk64 = (n) }, \ .code = (c), \ .cmask = (m), \ .weight = (w), \ .overlap = (o), \ + .flags = f, \ } #define EVENT_CONSTRAINT(c, n, m) \ - __EVENT_CONSTRAINT(c, n, m, HWEIGHT(n), 0) + __EVENT_CONSTRAINT(c, n, m, HWEIGHT(n), 0, 0) /* * The overlap flag marks event constraints with overlapping counter @@ -203,7 +211,7 @@ struct cpu_hw_events { * and its counter masks must be kept at a minimum. */ #define EVENT_CONSTRAINT_OVERLAP(c, n, m) \ - __EVENT_CONSTRAINT(c, n, m, HWEIGHT(n), 1) + __EVENT_CONSTRAINT(c, n, m, HWEIGHT(n), 1, 0) /* * Constraint on the Event code. @@ -231,6 +239,14 @@ struct cpu_hw_events { #define INTEL_UEVENT_CONSTRAINT(c, n) \ EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK) +#define INTEL_PLD_CONSTRAINT(c, n) \ + __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK, \ + HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LDLAT) + +#define INTEL_PST_CONSTRAINT(c, n) \ + __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK, \ + HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_ST) + #define EVENT_CONSTRAINT_END \ EVENT_CONSTRAINT(0, 0, 0) @@ -260,12 +276,22 @@ struct extra_reg { .msr = (ms), \ .config_mask = (m), \ .valid_mask = (vm), \ - .idx = EXTRA_REG_##i \ + .idx = EXTRA_REG_##i, \ } #define INTEL_EVENT_EXTRA_REG(event, msr, vm, idx) \ EVENT_EXTRA_REG(event, msr, ARCH_PERFMON_EVENTSEL_EVENT, vm, idx) +#define INTEL_UEVENT_EXTRA_REG(event, msr, vm, idx) \ + EVENT_EXTRA_REG(event, msr, ARCH_PERFMON_EVENTSEL_EVENT | \ + ARCH_PERFMON_EVENTSEL_UMASK, vm, idx) + +#define INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(c) \ + INTEL_UEVENT_EXTRA_REG(c, \ + MSR_PEBS_LD_LAT_THRESHOLD, \ + 0xffff, \ + LDLAT) + #define EVENT_EXTRA_END EVENT_EXTRA_REG(0, 0, 0, 0, RSP_0) union perf_capabilities { @@ -355,8 +381,10 @@ struct x86_pmu { */ int attr_rdpmc; struct attribute **format_attrs; + struct attribute **event_attrs; ssize_t (*events_sysfs_show)(char *page, u64 config); + struct attribute **cpu_events; /* * CPU Hotplug hooks @@ -421,6 +449,23 @@ do { \ #define ERF_NO_HT_SHARING 1 #define ERF_HAS_RSP_1 2 +#define EVENT_VAR(_id) event_attr_##_id +#define EVENT_PTR(_id) &event_attr_##_id.attr.attr + +#define EVENT_ATTR(_name, _id) \ +static struct perf_pmu_events_attr EVENT_VAR(_id) = { \ + .attr = __ATTR(_name, 0444, events_sysfs_show, NULL), \ + .id = PERF_COUNT_HW_##_id, \ + .event_str = NULL, \ +}; + +#define EVENT_ATTR_STR(_name, v, str) \ +static struct perf_pmu_events_attr event_attr_##v = { \ + .attr = __ATTR(_name, 0444, events_sysfs_show, NULL), \ + .id = 0, \ + .event_str = str, \ +}; + extern struct x86_pmu x86_pmu __read_mostly; DECLARE_PER_CPU(struct cpu_hw_events, cpu_hw_events); @@ -628,6 +673,9 @@ int p6_pmu_init(void); int knc_pmu_init(void); +ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr, + char *page); + #else /* CONFIG_CPU_SUP_INTEL */ static inline void reserve_ds_buffers(void) diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c index dfdab42..7e28d94 100644 --- a/arch/x86/kernel/cpu/perf_event_amd.c +++ b/arch/x86/kernel/cpu/perf_event_amd.c @@ -132,14 +132,11 @@ static u64 amd_pmu_event_map(int hw_event) return amd_perfmon_event_map[hw_event]; } -static struct event_constraint *amd_nb_event_constraint; - /* * Previously calculated offsets */ static unsigned int event_offsets[X86_PMC_IDX_MAX] __read_mostly; static unsigned int count_offsets[X86_PMC_IDX_MAX] __read_mostly; -static unsigned int rdpmc_indexes[X86_PMC_IDX_MAX] __read_mostly; /* * Legacy CPUs: @@ -147,14 +144,10 @@ static unsigned int rdpmc_indexes[X86_PMC_IDX_MAX] __read_mostly; * * CPUs with core performance counter extensions: * 6 counters starting at 0xc0010200 each offset by 2 - * - * CPUs with north bridge performance counter extensions: - * 4 additional counters starting at 0xc0010240 each offset by 2 - * (indexed right above either one of the above core counters) */ static inline int amd_pmu_addr_offset(int index, bool eventsel) { - int offset, first, base; + int offset; if (!index) return index; @@ -167,23 +160,7 @@ static inline int amd_pmu_addr_offset(int index, bool eventsel) if (offset) return offset; - if (amd_nb_event_constraint && - test_bit(index, amd_nb_event_constraint->idxmsk)) { - /* - * calculate the offset of NB counters with respect to - * base eventsel or perfctr - */ - - first = find_first_bit(amd_nb_event_constraint->idxmsk, - X86_PMC_IDX_MAX); - - if (eventsel) - base = MSR_F15H_NB_PERF_CTL - x86_pmu.eventsel; - else - base = MSR_F15H_NB_PERF_CTR - x86_pmu.perfctr; - - offset = base + ((index - first) << 1); - } else if (!cpu_has_perfctr_core) + if (!cpu_has_perfctr_core) offset = index; else offset = index << 1; @@ -196,36 +173,6 @@ static inline int amd_pmu_addr_offset(int index, bool eventsel) return offset; } -static inline int amd_pmu_rdpmc_index(int index) -{ - int ret, first; - - if (!index) - return index; - - ret = rdpmc_indexes[index]; - - if (ret) - return ret; - - if (amd_nb_event_constraint && - test_bit(index, amd_nb_event_constraint->idxmsk)) { - /* - * according to the mnual, ECX value of the NB counters is - * the index of the NB counter (0, 1, 2 or 3) plus 6 - */ - - first = find_first_bit(amd_nb_event_constraint->idxmsk, - X86_PMC_IDX_MAX); - ret = index - first + 6; - } else - ret = index; - - rdpmc_indexes[index] = ret; - - return ret; -} - static int amd_core_hw_config(struct perf_event *event) { if (event->attr.exclude_host && event->attr.exclude_guest) @@ -245,34 +192,6 @@ static int amd_core_hw_config(struct perf_event *event) } /* - * NB counters do not support the following event select bits: - * Host/Guest only - * Counter mask - * Invert counter mask - * Edge detect - * OS/User mode - */ -static int amd_nb_hw_config(struct perf_event *event) -{ - /* for NB, we only allow system wide counting mode */ - if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK) - return -EINVAL; - - if (event->attr.exclude_user || event->attr.exclude_kernel || - event->attr.exclude_host || event->attr.exclude_guest) - return -EINVAL; - - event->hw.config &= ~(ARCH_PERFMON_EVENTSEL_USR | - ARCH_PERFMON_EVENTSEL_OS); - - if (event->hw.config & ~(AMD64_RAW_EVENT_MASK_NB | - ARCH_PERFMON_EVENTSEL_INT)) - return -EINVAL; - - return 0; -} - -/* * AMD64 events are detected based on their event codes. */ static inline unsigned int amd_get_event_code(struct hw_perf_event *hwc) @@ -285,11 +204,6 @@ static inline int amd_is_nb_event(struct hw_perf_event *hwc) return (hwc->config & 0xe0) == 0xe0; } -static inline int amd_is_perfctr_nb_event(struct hw_perf_event *hwc) -{ - return amd_nb_event_constraint && amd_is_nb_event(hwc); -} - static inline int amd_has_nb(struct cpu_hw_events *cpuc) { struct amd_nb *nb = cpuc->amd_nb; @@ -315,9 +229,6 @@ static int amd_pmu_hw_config(struct perf_event *event) if (event->attr.type == PERF_TYPE_RAW) event->hw.config |= event->attr.config & AMD64_RAW_EVENT_MASK; - if (amd_is_perfctr_nb_event(&event->hw)) - return amd_nb_hw_config(event); - return amd_core_hw_config(event); } @@ -341,19 +252,6 @@ static void __amd_put_nb_event_constraints(struct cpu_hw_events *cpuc, } } -static void amd_nb_interrupt_hw_config(struct hw_perf_event *hwc) -{ - int core_id = cpu_data(smp_processor_id()).cpu_core_id; - - /* deliver interrupts only to this core */ - if (hwc->config & ARCH_PERFMON_EVENTSEL_INT) { - hwc->config |= AMD64_EVENTSEL_INT_CORE_ENABLE; - hwc->config &= ~AMD64_EVENTSEL_INT_CORE_SEL_MASK; - hwc->config |= (u64)(core_id) << - AMD64_EVENTSEL_INT_CORE_SEL_SHIFT; - } -} - /* * AMD64 NorthBridge events need special treatment because * counter access needs to be synchronized across all cores @@ -441,9 +339,6 @@ __amd_get_nb_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *ev if (new == -1) return &emptyconstraint; - if (amd_is_perfctr_nb_event(hwc)) - amd_nb_interrupt_hw_config(hwc); - return &nb->event_constraints[new]; } @@ -543,8 +438,7 @@ amd_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event) if (!(amd_has_nb(cpuc) && amd_is_nb_event(&event->hw))) return &unconstrained; - return __amd_get_nb_event_constraints(cpuc, event, - amd_nb_event_constraint); + return __amd_get_nb_event_constraints(cpuc, event, NULL); } static void amd_put_event_constraints(struct cpu_hw_events *cpuc, @@ -643,9 +537,6 @@ static struct event_constraint amd_f15_PMC30 = EVENT_CONSTRAINT_OVERLAP(0, 0x09, static struct event_constraint amd_f15_PMC50 = EVENT_CONSTRAINT(0, 0x3F, 0); static struct event_constraint amd_f15_PMC53 = EVENT_CONSTRAINT(0, 0x38, 0); -static struct event_constraint amd_NBPMC96 = EVENT_CONSTRAINT(0, 0x3C0, 0); -static struct event_constraint amd_NBPMC74 = EVENT_CONSTRAINT(0, 0xF0, 0); - static struct event_constraint * amd_get_event_constraints_f15h(struct cpu_hw_events *cpuc, struct perf_event *event) { @@ -711,8 +602,8 @@ amd_get_event_constraints_f15h(struct cpu_hw_events *cpuc, struct perf_event *ev return &amd_f15_PMC20; } case AMD_EVENT_NB: - return __amd_get_nb_event_constraints(cpuc, event, - amd_nb_event_constraint); + /* moved to perf_event_amd_uncore.c */ + return &emptyconstraint; default: return &emptyconstraint; } @@ -738,7 +629,6 @@ static __initconst const struct x86_pmu amd_pmu = { .eventsel = MSR_K7_EVNTSEL0, .perfctr = MSR_K7_PERFCTR0, .addr_offset = amd_pmu_addr_offset, - .rdpmc_index = amd_pmu_rdpmc_index, .event_map = amd_pmu_event_map, .max_events = ARRAY_SIZE(amd_perfmon_event_map), .num_counters = AMD64_NUM_COUNTERS, @@ -790,23 +680,6 @@ static int setup_perfctr_core(void) return 0; } -static int setup_perfctr_nb(void) -{ - if (!cpu_has_perfctr_nb) - return -ENODEV; - - x86_pmu.num_counters += AMD64_NUM_COUNTERS_NB; - - if (cpu_has_perfctr_core) - amd_nb_event_constraint = &amd_NBPMC96; - else - amd_nb_event_constraint = &amd_NBPMC74; - - printk(KERN_INFO "perf: AMD northbridge performance counters detected\n"); - - return 0; -} - __init int amd_pmu_init(void) { /* Performance-monitoring supported from K7 and later: */ @@ -817,7 +690,6 @@ __init int amd_pmu_init(void) setup_event_constraints(); setup_perfctr_core(); - setup_perfctr_nb(); /* Events are common for all AMDs */ memcpy(hw_cache_event_ids, amd_hw_cache_event_ids, diff --git a/arch/x86/kernel/cpu/perf_event_amd_uncore.c b/arch/x86/kernel/cpu/perf_event_amd_uncore.c new file mode 100644 index 0000000..c0c661a --- /dev/null +++ b/arch/x86/kernel/cpu/perf_event_amd_uncore.c @@ -0,0 +1,547 @@ +/* + * Copyright (C) 2013 Advanced Micro Devices, Inc. + * + * Author: Jacob Shin <jacob.shin@amd.com> + * + * 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/perf_event.h> +#include <linux/percpu.h> +#include <linux/types.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/cpu.h> +#include <linux/cpumask.h> + +#include <asm/cpufeature.h> +#include <asm/perf_event.h> +#include <asm/msr.h> + +#define NUM_COUNTERS_NB 4 +#define NUM_COUNTERS_L2 4 +#define MAX_COUNTERS NUM_COUNTERS_NB + +#define RDPMC_BASE_NB 6 +#define RDPMC_BASE_L2 10 + +#define COUNTER_SHIFT 16 + +struct amd_uncore { + int id; + int refcnt; + int cpu; + int num_counters; + int rdpmc_base; + u32 msr_base; + cpumask_t *active_mask; + struct pmu *pmu; + struct perf_event *events[MAX_COUNTERS]; + struct amd_uncore *free_when_cpu_online; +}; + +static struct amd_uncore * __percpu *amd_uncore_nb; +static struct amd_uncore * __percpu *amd_uncore_l2; + +static struct pmu amd_nb_pmu; +static struct pmu amd_l2_pmu; + +static cpumask_t amd_nb_active_mask; +static cpumask_t amd_l2_active_mask; + +static bool is_nb_event(struct perf_event *event) +{ + return event->pmu->type == amd_nb_pmu.type; +} + +static bool is_l2_event(struct perf_event *event) +{ + return event->pmu->type == amd_l2_pmu.type; +} + +static struct amd_uncore *event_to_amd_uncore(struct perf_event *event) +{ + if (is_nb_event(event) && amd_uncore_nb) + return *per_cpu_ptr(amd_uncore_nb, event->cpu); + else if (is_l2_event(event) && amd_uncore_l2) + return *per_cpu_ptr(amd_uncore_l2, event->cpu); + + return NULL; +} + +static void amd_uncore_read(struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + u64 prev, new; + s64 delta; + + /* + * since we do not enable counter overflow interrupts, + * we do not have to worry about prev_count changing on us + */ + + prev = local64_read(&hwc->prev_count); + rdpmcl(hwc->event_base_rdpmc, new); + local64_set(&hwc->prev_count, new); + delta = (new << COUNTER_SHIFT) - (prev << COUNTER_SHIFT); + delta >>= COUNTER_SHIFT; + local64_add(delta, &event->count); +} + +static void amd_uncore_start(struct perf_event *event, int flags) +{ + struct hw_perf_event *hwc = &event->hw; + + if (flags & PERF_EF_RELOAD) + wrmsrl(hwc->event_base, (u64)local64_read(&hwc->prev_count)); + + hwc->state = 0; + wrmsrl(hwc->config_base, (hwc->config | ARCH_PERFMON_EVENTSEL_ENABLE)); + perf_event_update_userpage(event); +} + +static void amd_uncore_stop(struct perf_event *event, int flags) +{ + struct hw_perf_event *hwc = &event->hw; + + wrmsrl(hwc->config_base, hwc->config); + hwc->state |= PERF_HES_STOPPED; + + if ((flags & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) { + amd_uncore_read(event); + hwc->state |= PERF_HES_UPTODATE; + } +} + +static int amd_uncore_add(struct perf_event *event, int flags) +{ + int i; + struct amd_uncore *uncore = event_to_amd_uncore(event); + struct hw_perf_event *hwc = &event->hw; + + /* are we already assigned? */ + if (hwc->idx != -1 && uncore->events[hwc->idx] == event) + goto out; + + for (i = 0; i < uncore->num_counters; i++) { + if (uncore->events[i] == event) { + hwc->idx = i; + goto out; + } + } + + /* if not, take the first available counter */ + hwc->idx = -1; + for (i = 0; i < uncore->num_counters; i++) { + if (cmpxchg(&uncore->events[i], NULL, event) == NULL) { + hwc->idx = i; + break; + } + } + +out: + if (hwc->idx == -1) + return -EBUSY; + + hwc->config_base = uncore->msr_base + (2 * hwc->idx); + hwc->event_base = uncore->msr_base + 1 + (2 * hwc->idx); + hwc->event_base_rdpmc = uncore->rdpmc_base + hwc->idx; + hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED; + + if (flags & PERF_EF_START) + amd_uncore_start(event, PERF_EF_RELOAD); + + return 0; +} + +static void amd_uncore_del(struct perf_event *event, int flags) +{ + int i; + struct amd_uncore *uncore = event_to_amd_uncore(event); + struct hw_perf_event *hwc = &event->hw; + + amd_uncore_stop(event, PERF_EF_UPDATE); + + for (i = 0; i < uncore->num_counters; i++) { + if (cmpxchg(&uncore->events[i], event, NULL) == event) + break; + } + + hwc->idx = -1; +} + +static int amd_uncore_event_init(struct perf_event *event) +{ + struct amd_uncore *uncore; + struct hw_perf_event *hwc = &event->hw; + + if (event->attr.type != event->pmu->type) + return -ENOENT; + + /* + * NB and L2 counters (MSRs) are shared across all cores that share the + * same NB / L2 cache. Interrupts can be directed to a single target + * core, however, event counts generated by processes running on other + * cores cannot be masked out. So we do not support sampling and + * per-thread events. + */ + if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK) + return -EINVAL; + + /* NB and L2 counters do not have usr/os/guest/host bits */ + if (event->attr.exclude_user || event->attr.exclude_kernel || + event->attr.exclude_host || event->attr.exclude_guest) + return -EINVAL; + + /* and we do not enable counter overflow interrupts */ + hwc->config = event->attr.config & AMD64_RAW_EVENT_MASK_NB; + hwc->idx = -1; + + if (event->cpu < 0) + return -EINVAL; + + uncore = event_to_amd_uncore(event); + if (!uncore) + return -ENODEV; + + /* + * since request can come in to any of the shared cores, we will remap + * to a single common cpu. + */ + event->cpu = uncore->cpu; + + return 0; +} + +static ssize_t amd_uncore_attr_show_cpumask(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int n; + cpumask_t *active_mask; + struct pmu *pmu = dev_get_drvdata(dev); + + if (pmu->type == amd_nb_pmu.type) + active_mask = &amd_nb_active_mask; + else if (pmu->type == amd_l2_pmu.type) + active_mask = &amd_l2_active_mask; + else + return 0; + + n = cpulist_scnprintf(buf, PAGE_SIZE - 2, active_mask); + buf[n++] = '\n'; + buf[n] = '\0'; + return n; +} +static DEVICE_ATTR(cpumask, S_IRUGO, amd_uncore_attr_show_cpumask, NULL); + +static struct attribute *amd_uncore_attrs[] = { + &dev_attr_cpumask.attr, + NULL, +}; + +static struct attribute_group amd_uncore_attr_group = { + .attrs = amd_uncore_attrs, +}; + +PMU_FORMAT_ATTR(event, "config:0-7,32-35"); +PMU_FORMAT_ATTR(umask, "config:8-15"); + +static struct attribute *amd_uncore_format_attr[] = { + &format_attr_event.attr, + &format_attr_umask.attr, + NULL, +}; + +static struct attribute_group amd_uncore_format_group = { + .name = "format", + .attrs = amd_uncore_format_attr, +}; + +static const struct attribute_group *amd_uncore_attr_groups[] = { + &amd_uncore_attr_group, + &amd_uncore_format_group, + NULL, +}; + +static struct pmu amd_nb_pmu = { + .attr_groups = amd_uncore_attr_groups, + .name = "amd_nb", + .event_init = amd_uncore_event_init, + .add = amd_uncore_add, + .del = amd_uncore_del, + .start = amd_uncore_start, + .stop = amd_uncore_stop, + .read = amd_uncore_read, +}; + +static struct pmu amd_l2_pmu = { + .attr_groups = amd_uncore_attr_groups, + .name = "amd_l2", + .event_init = amd_uncore_event_init, + .add = amd_uncore_add, + .del = amd_uncore_del, + .start = amd_uncore_start, + .stop = amd_uncore_stop, + .read = amd_uncore_read, +}; + +static struct amd_uncore * __cpuinit amd_uncore_alloc(unsigned int cpu) +{ + return kzalloc_node(sizeof(struct amd_uncore), GFP_KERNEL, + cpu_to_node(cpu)); +} + +static void __cpuinit amd_uncore_cpu_up_prepare(unsigned int cpu) +{ + struct amd_uncore *uncore; + + if (amd_uncore_nb) { + uncore = amd_uncore_alloc(cpu); + uncore->cpu = cpu; + uncore->num_counters = NUM_COUNTERS_NB; + uncore->rdpmc_base = RDPMC_BASE_NB; + uncore->msr_base = MSR_F15H_NB_PERF_CTL; + uncore->active_mask = &amd_nb_active_mask; + uncore->pmu = &amd_nb_pmu; + *per_cpu_ptr(amd_uncore_nb, cpu) = uncore; + } + + if (amd_uncore_l2) { + uncore = amd_uncore_alloc(cpu); + uncore->cpu = cpu; + uncore->num_counters = NUM_COUNTERS_L2; + uncore->rdpmc_base = RDPMC_BASE_L2; + uncore->msr_base = MSR_F16H_L2I_PERF_CTL; + uncore->active_mask = &amd_l2_active_mask; + uncore->pmu = &amd_l2_pmu; + *per_cpu_ptr(amd_uncore_l2, cpu) = uncore; + } +} + +static struct amd_uncore * +__cpuinit amd_uncore_find_online_sibling(struct amd_uncore *this, + struct amd_uncore * __percpu *uncores) +{ + unsigned int cpu; + struct amd_uncore *that; + + for_each_online_cpu(cpu) { + that = *per_cpu_ptr(uncores, cpu); + + if (!that) + continue; + + if (this == that) + continue; + + if (this->id == that->id) { + that->free_when_cpu_online = this; + this = that; + break; + } + } + + this->refcnt++; + return this; +} + +static void __cpuinit amd_uncore_cpu_starting(unsigned int cpu) +{ + unsigned int eax, ebx, ecx, edx; + struct amd_uncore *uncore; + + if (amd_uncore_nb) { + uncore = *per_cpu_ptr(amd_uncore_nb, cpu); + cpuid(0x8000001e, &eax, &ebx, &ecx, &edx); + uncore->id = ecx & 0xff; + + uncore = amd_uncore_find_online_sibling(uncore, amd_uncore_nb); + *per_cpu_ptr(amd_uncore_nb, cpu) = uncore; + } + + if (amd_uncore_l2) { + unsigned int apicid = cpu_data(cpu).apicid; + unsigned int nshared; + + uncore = *per_cpu_ptr(amd_uncore_l2, cpu); + cpuid_count(0x8000001d, 2, &eax, &ebx, &ecx, &edx); + nshared = ((eax >> 14) & 0xfff) + 1; + uncore->id = apicid - (apicid % nshared); + + uncore = amd_uncore_find_online_sibling(uncore, amd_uncore_l2); + *per_cpu_ptr(amd_uncore_l2, cpu) = uncore; + } +} + +static void __cpuinit uncore_online(unsigned int cpu, + struct amd_uncore * __percpu *uncores) +{ + struct amd_uncore *uncore = *per_cpu_ptr(uncores, cpu); + + kfree(uncore->free_when_cpu_online); + uncore->free_when_cpu_online = NULL; + + if (cpu == uncore->cpu) + cpumask_set_cpu(cpu, uncore->active_mask); +} + +static void __cpuinit amd_uncore_cpu_online(unsigned int cpu) +{ + if (amd_uncore_nb) + uncore_online(cpu, amd_uncore_nb); + + if (amd_uncore_l2) + uncore_online(cpu, amd_uncore_l2); +} + +static void __cpuinit uncore_down_prepare(unsigned int cpu, + struct amd_uncore * __percpu *uncores) +{ + unsigned int i; + struct amd_uncore *this = *per_cpu_ptr(uncores, cpu); + + if (this->cpu != cpu) + return; + + /* this cpu is going down, migrate to a shared sibling if possible */ + for_each_online_cpu(i) { + struct amd_uncore *that = *per_cpu_ptr(uncores, i); + + if (cpu == i) + continue; + + if (this == that) { + perf_pmu_migrate_context(this->pmu, cpu, i); + cpumask_clear_cpu(cpu, that->active_mask); + cpumask_set_cpu(i, that->active_mask); + that->cpu = i; + break; + } + } +} + +static void __cpuinit amd_uncore_cpu_down_prepare(unsigned int cpu) +{ + if (amd_uncore_nb) + uncore_down_prepare(cpu, amd_uncore_nb); + + if (amd_uncore_l2) + uncore_down_prepare(cpu, amd_uncore_l2); +} + +static void __cpuinit uncore_dead(unsigned int cpu, + struct amd_uncore * __percpu *uncores) +{ + struct amd_uncore *uncore = *per_cpu_ptr(uncores, cpu); + + if (cpu == uncore->cpu) + cpumask_clear_cpu(cpu, uncore->active_mask); + + if (!--uncore->refcnt) + kfree(uncore); + *per_cpu_ptr(amd_uncore_nb, cpu) = NULL; +} + +static void __cpuinit amd_uncore_cpu_dead(unsigned int cpu) +{ + if (amd_uncore_nb) + uncore_dead(cpu, amd_uncore_nb); + + if (amd_uncore_l2) + uncore_dead(cpu, amd_uncore_l2); +} + +static int __cpuinit +amd_uncore_cpu_notifier(struct notifier_block *self, unsigned long action, + void *hcpu) +{ + unsigned int cpu = (long)hcpu; + + switch (action & ~CPU_TASKS_FROZEN) { + case CPU_UP_PREPARE: + amd_uncore_cpu_up_prepare(cpu); + break; + + case CPU_STARTING: + amd_uncore_cpu_starting(cpu); + break; + + case CPU_ONLINE: + amd_uncore_cpu_online(cpu); + break; + + case CPU_DOWN_PREPARE: + amd_uncore_cpu_down_prepare(cpu); + break; + + case CPU_UP_CANCELED: + case CPU_DEAD: + amd_uncore_cpu_dead(cpu); + break; + + default: + break; + } + + return NOTIFY_OK; +} + +static struct notifier_block amd_uncore_cpu_notifier_block __cpuinitdata = { + .notifier_call = amd_uncore_cpu_notifier, + .priority = CPU_PRI_PERF + 1, +}; + +static void __init init_cpu_already_online(void *dummy) +{ + unsigned int cpu = smp_processor_id(); + + amd_uncore_cpu_starting(cpu); + amd_uncore_cpu_online(cpu); +} + +static int __init amd_uncore_init(void) +{ + unsigned int cpu; + int ret = -ENODEV; + + if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) + return -ENODEV; + + if (!cpu_has_topoext) + return -ENODEV; + + if (cpu_has_perfctr_nb) { + amd_uncore_nb = alloc_percpu(struct amd_uncore *); + perf_pmu_register(&amd_nb_pmu, amd_nb_pmu.name, -1); + + printk(KERN_INFO "perf: AMD NB counters detected\n"); + ret = 0; + } + + if (cpu_has_perfctr_l2) { + amd_uncore_l2 = alloc_percpu(struct amd_uncore *); + perf_pmu_register(&amd_l2_pmu, amd_l2_pmu.name, -1); + + printk(KERN_INFO "perf: AMD L2I counters detected\n"); + ret = 0; + } + + if (ret) + return -ENODEV; + + get_online_cpus(); + /* init cpus already online before registering for hotplug notifier */ + for_each_online_cpu(cpu) { + amd_uncore_cpu_up_prepare(cpu); + smp_call_function_single(cpu, init_cpu_already_online, NULL, 1); + } + + register_cpu_notifier(&amd_uncore_cpu_notifier_block); + put_online_cpus(); + + return 0; +} +device_initcall(amd_uncore_init); diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c index cc45deb..ffd6050 100644 --- a/arch/x86/kernel/cpu/perf_event_intel.c +++ b/arch/x86/kernel/cpu/perf_event_intel.c @@ -81,6 +81,7 @@ static struct event_constraint intel_nehalem_event_constraints[] __read_mostly = static struct extra_reg intel_nehalem_extra_regs[] __read_mostly = { INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0xffff, RSP_0), + INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x100b), EVENT_EXTRA_END }; @@ -108,6 +109,8 @@ static struct event_constraint intel_snb_event_constraints[] __read_mostly = INTEL_EVENT_CONSTRAINT(0x48, 0x4), /* L1D_PEND_MISS.PENDING */ INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PREC_DIST */ INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.LOAD_LATENCY */ + INTEL_UEVENT_CONSTRAINT(0x04a3, 0xf), /* CYCLE_ACTIVITY.CYCLES_NO_DISPATCH */ + INTEL_UEVENT_CONSTRAINT(0x02a3, 0x4), /* CYCLE_ACTIVITY.CYCLES_L1D_PENDING */ EVENT_CONSTRAINT_END }; @@ -136,6 +139,7 @@ static struct extra_reg intel_westmere_extra_regs[] __read_mostly = { INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0xffff, RSP_0), INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0xffff, RSP_1), + INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x100b), EVENT_EXTRA_END }; @@ -155,6 +159,8 @@ static struct event_constraint intel_gen_event_constraints[] __read_mostly = static struct extra_reg intel_snb_extra_regs[] __read_mostly = { INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0x3f807f8fffull, RSP_0), INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0x3f807f8fffull, RSP_1), + INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd), + INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd), EVENT_EXTRA_END }; @@ -164,6 +170,21 @@ static struct extra_reg intel_snbep_extra_regs[] __read_mostly = { EVENT_EXTRA_END }; +EVENT_ATTR_STR(mem-loads, mem_ld_nhm, "event=0x0b,umask=0x10,ldlat=3"); +EVENT_ATTR_STR(mem-loads, mem_ld_snb, "event=0xcd,umask=0x1,ldlat=3"); +EVENT_ATTR_STR(mem-stores, mem_st_snb, "event=0xcd,umask=0x2"); + +struct attribute *nhm_events_attrs[] = { + EVENT_PTR(mem_ld_nhm), + NULL, +}; + +struct attribute *snb_events_attrs[] = { + EVENT_PTR(mem_ld_snb), + EVENT_PTR(mem_st_snb), + NULL, +}; + static u64 intel_pmu_event_map(int hw_event) { return intel_perfmon_event_map[hw_event]; @@ -1398,8 +1419,11 @@ x86_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event) if (x86_pmu.event_constraints) { for_each_event_constraint(c, x86_pmu.event_constraints) { - if ((event->hw.config & c->cmask) == c->code) + if ((event->hw.config & c->cmask) == c->code) { + /* hw.flags zeroed at initialization */ + event->hw.flags |= c->flags; return c; + } } } @@ -1444,6 +1468,7 @@ intel_put_shared_regs_event_constraints(struct cpu_hw_events *cpuc, static void intel_put_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event) { + event->hw.flags = 0; intel_put_shared_regs_event_constraints(cpuc, event); } @@ -1767,6 +1792,8 @@ static void intel_pmu_flush_branch_stack(void) PMU_FORMAT_ATTR(offcore_rsp, "config1:0-63"); +PMU_FORMAT_ATTR(ldlat, "config1:0-15"); + static struct attribute *intel_arch3_formats_attr[] = { &format_attr_event.attr, &format_attr_umask.attr, @@ -1777,6 +1804,7 @@ static struct attribute *intel_arch3_formats_attr[] = { &format_attr_cmask.attr, &format_attr_offcore_rsp.attr, /* XXX do NHM/WSM + SNB breakout */ + &format_attr_ldlat.attr, /* PEBS load latency */ NULL, }; @@ -2037,6 +2065,8 @@ __init int intel_pmu_init(void) x86_pmu.enable_all = intel_pmu_nhm_enable_all; x86_pmu.extra_regs = intel_nehalem_extra_regs; + x86_pmu.cpu_events = nhm_events_attrs; + /* UOPS_ISSUED.STALLED_CYCLES */ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1); @@ -2080,6 +2110,8 @@ __init int intel_pmu_init(void) x86_pmu.extra_regs = intel_westmere_extra_regs; x86_pmu.er_flags |= ERF_HAS_RSP_1; + x86_pmu.cpu_events = nhm_events_attrs; + /* UOPS_ISSUED.STALLED_CYCLES */ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1); @@ -2111,6 +2143,8 @@ __init int intel_pmu_init(void) x86_pmu.er_flags |= ERF_HAS_RSP_1; x86_pmu.er_flags |= ERF_NO_HT_SHARING; + x86_pmu.cpu_events = snb_events_attrs; + /* UOPS_ISSUED.ANY,c=1,i=1 to count stall cycles */ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1); @@ -2140,6 +2174,8 @@ __init int intel_pmu_init(void) x86_pmu.er_flags |= ERF_HAS_RSP_1; x86_pmu.er_flags |= ERF_NO_HT_SHARING; + x86_pmu.cpu_events = snb_events_attrs; + /* UOPS_ISSUED.ANY,c=1,i=1 to count stall cycles */ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1); diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c index 26830f3..60250f6 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_ds.c +++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c @@ -24,6 +24,130 @@ struct pebs_record_32 { */ +union intel_x86_pebs_dse { + u64 val; + struct { + unsigned int ld_dse:4; + unsigned int ld_stlb_miss:1; + unsigned int ld_locked:1; + unsigned int ld_reserved:26; + }; + struct { + unsigned int st_l1d_hit:1; + unsigned int st_reserved1:3; + unsigned int st_stlb_miss:1; + unsigned int st_locked:1; + unsigned int st_reserved2:26; + }; +}; + + +/* + * Map PEBS Load Latency Data Source encodings to generic + * memory data source information + */ +#define P(a, b) PERF_MEM_S(a, b) +#define OP_LH (P(OP, LOAD) | P(LVL, HIT)) +#define SNOOP_NONE_MISS (P(SNOOP, NONE) | P(SNOOP, MISS)) + +static const u64 pebs_data_source[] = { + P(OP, LOAD) | P(LVL, MISS) | P(LVL, L3) | P(SNOOP, NA),/* 0x00:ukn L3 */ + OP_LH | P(LVL, L1) | P(SNOOP, NONE), /* 0x01: L1 local */ + OP_LH | P(LVL, LFB) | P(SNOOP, NONE), /* 0x02: LFB hit */ + OP_LH | P(LVL, L2) | P(SNOOP, NONE), /* 0x03: L2 hit */ + OP_LH | P(LVL, L3) | P(SNOOP, NONE), /* 0x04: L3 hit */ + OP_LH | P(LVL, L3) | P(SNOOP, MISS), /* 0x05: L3 hit, snoop miss */ + OP_LH | P(LVL, L3) | P(SNOOP, HIT), /* 0x06: L3 hit, snoop hit */ + OP_LH | P(LVL, L3) | P(SNOOP, HITM), /* 0x07: L3 hit, snoop hitm */ + OP_LH | P(LVL, REM_CCE1) | P(SNOOP, HIT), /* 0x08: L3 miss snoop hit */ + OP_LH | P(LVL, REM_CCE1) | P(SNOOP, HITM), /* 0x09: L3 miss snoop hitm*/ + OP_LH | P(LVL, LOC_RAM) | P(SNOOP, HIT), /* 0x0a: L3 miss, shared */ + OP_LH | P(LVL, REM_RAM1) | P(SNOOP, HIT), /* 0x0b: L3 miss, shared */ + OP_LH | P(LVL, LOC_RAM) | SNOOP_NONE_MISS,/* 0x0c: L3 miss, excl */ + OP_LH | P(LVL, REM_RAM1) | SNOOP_NONE_MISS,/* 0x0d: L3 miss, excl */ + OP_LH | P(LVL, IO) | P(SNOOP, NONE), /* 0x0e: I/O */ + OP_LH | P(LVL, UNC) | P(SNOOP, NONE), /* 0x0f: uncached */ +}; + +static u64 precise_store_data(u64 status) +{ + union intel_x86_pebs_dse dse; + u64 val = P(OP, STORE) | P(SNOOP, NA) | P(LVL, L1) | P(TLB, L2); + + dse.val = status; + + /* + * bit 4: TLB access + * 1 = stored missed 2nd level TLB + * + * so it either hit the walker or the OS + * otherwise hit 2nd level TLB + */ + if (dse.st_stlb_miss) + val |= P(TLB, MISS); + else + val |= P(TLB, HIT); + + /* + * bit 0: hit L1 data cache + * if not set, then all we know is that + * it missed L1D + */ + if (dse.st_l1d_hit) + val |= P(LVL, HIT); + else + val |= P(LVL, MISS); + + /* + * bit 5: Locked prefix + */ + if (dse.st_locked) + val |= P(LOCK, LOCKED); + + return val; +} + +static u64 load_latency_data(u64 status) +{ + union intel_x86_pebs_dse dse; + u64 val; + int model = boot_cpu_data.x86_model; + int fam = boot_cpu_data.x86; + + dse.val = status; + + /* + * use the mapping table for bit 0-3 + */ + val = pebs_data_source[dse.ld_dse]; + + /* + * Nehalem models do not support TLB, Lock infos + */ + if (fam == 0x6 && (model == 26 || model == 30 + || model == 31 || model == 46)) { + val |= P(TLB, NA) | P(LOCK, NA); + return val; + } + /* + * bit 4: TLB access + * 0 = did not miss 2nd level TLB + * 1 = missed 2nd level TLB + */ + if (dse.ld_stlb_miss) + val |= P(TLB, MISS) | P(TLB, L2); + else + val |= P(TLB, HIT) | P(TLB, L1) | P(TLB, L2); + + /* + * bit 5: locked prefix + */ + if (dse.ld_locked) + val |= P(LOCK, LOCKED); + + return val; +} + struct pebs_record_core { u64 flags, ip; u64 ax, bx, cx, dx; @@ -365,7 +489,7 @@ struct event_constraint intel_atom_pebs_event_constraints[] = { }; struct event_constraint intel_nehalem_pebs_event_constraints[] = { - INTEL_EVENT_CONSTRAINT(0x0b, 0xf), /* MEM_INST_RETIRED.* */ + INTEL_PLD_CONSTRAINT(0x100b, 0xf), /* MEM_INST_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0x0f, 0xf), /* MEM_UNCORE_RETIRED.* */ INTEL_UEVENT_CONSTRAINT(0x010c, 0xf), /* MEM_STORE_RETIRED.DTLB_MISS */ INTEL_EVENT_CONSTRAINT(0xc0, 0xf), /* INST_RETIRED.ANY */ @@ -380,7 +504,7 @@ struct event_constraint intel_nehalem_pebs_event_constraints[] = { }; struct event_constraint intel_westmere_pebs_event_constraints[] = { - INTEL_EVENT_CONSTRAINT(0x0b, 0xf), /* MEM_INST_RETIRED.* */ + INTEL_PLD_CONSTRAINT(0x100b, 0xf), /* MEM_INST_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0x0f, 0xf), /* MEM_UNCORE_RETIRED.* */ INTEL_UEVENT_CONSTRAINT(0x010c, 0xf), /* MEM_STORE_RETIRED.DTLB_MISS */ INTEL_EVENT_CONSTRAINT(0xc0, 0xf), /* INSTR_RETIRED.* */ @@ -400,7 +524,8 @@ struct event_constraint intel_snb_pebs_event_constraints[] = { INTEL_UEVENT_CONSTRAINT(0x02c2, 0xf), /* UOPS_RETIRED.RETIRE_SLOTS */ INTEL_EVENT_CONSTRAINT(0xc4, 0xf), /* BR_INST_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xc5, 0xf), /* BR_MISP_RETIRED.* */ - INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.* */ + INTEL_PLD_CONSTRAINT(0x01cd, 0x8), /* MEM_TRANS_RETIRED.LAT_ABOVE_THR */ + INTEL_PST_CONSTRAINT(0x02cd, 0x8), /* MEM_TRANS_RETIRED.PRECISE_STORES */ INTEL_EVENT_CONSTRAINT(0xd0, 0xf), /* MEM_UOP_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */ @@ -414,7 +539,8 @@ struct event_constraint intel_ivb_pebs_event_constraints[] = { INTEL_UEVENT_CONSTRAINT(0x02c2, 0xf), /* UOPS_RETIRED.RETIRE_SLOTS */ INTEL_EVENT_CONSTRAINT(0xc4, 0xf), /* BR_INST_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xc5, 0xf), /* BR_MISP_RETIRED.* */ - INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.* */ + INTEL_PLD_CONSTRAINT(0x01cd, 0x8), /* MEM_TRANS_RETIRED.LAT_ABOVE_THR */ + INTEL_PST_CONSTRAINT(0x02cd, 0x8), /* MEM_TRANS_RETIRED.PRECISE_STORES */ INTEL_EVENT_CONSTRAINT(0xd0, 0xf), /* MEM_UOP_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */ @@ -431,8 +557,10 @@ struct event_constraint *intel_pebs_constraints(struct perf_event *event) if (x86_pmu.pebs_constraints) { for_each_event_constraint(c, x86_pmu.pebs_constraints) { - if ((event->hw.config & c->cmask) == c->code) + if ((event->hw.config & c->cmask) == c->code) { + event->hw.flags |= c->flags; return c; + } } } @@ -447,6 +575,11 @@ void intel_pmu_pebs_enable(struct perf_event *event) hwc->config &= ~ARCH_PERFMON_EVENTSEL_INT; cpuc->pebs_enabled |= 1ULL << hwc->idx; + + if (event->hw.flags & PERF_X86_EVENT_PEBS_LDLAT) + cpuc->pebs_enabled |= 1ULL << (hwc->idx + 32); + else if (event->hw.flags & PERF_X86_EVENT_PEBS_ST) + cpuc->pebs_enabled |= 1ULL << 63; } void intel_pmu_pebs_disable(struct perf_event *event) @@ -559,20 +692,51 @@ static void __intel_pmu_pebs_event(struct perf_event *event, struct pt_regs *iregs, void *__pebs) { /* - * We cast to pebs_record_core since that is a subset of - * both formats and we don't use the other fields in this - * routine. + * We cast to pebs_record_nhm to get the load latency data + * if extra_reg MSR_PEBS_LD_LAT_THRESHOLD used */ struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); - struct pebs_record_core *pebs = __pebs; + struct pebs_record_nhm *pebs = __pebs; struct perf_sample_data data; struct pt_regs regs; + u64 sample_type; + int fll, fst; if (!intel_pmu_save_and_restart(event)) return; + fll = event->hw.flags & PERF_X86_EVENT_PEBS_LDLAT; + fst = event->hw.flags & PERF_X86_EVENT_PEBS_ST; + perf_sample_data_init(&data, 0, event->hw.last_period); + data.period = event->hw.last_period; + sample_type = event->attr.sample_type; + + /* + * if PEBS-LL or PreciseStore + */ + if (fll || fst) { + if (sample_type & PERF_SAMPLE_ADDR) + data.addr = pebs->dla; + + /* + * Use latency for weight (only avail with PEBS-LL) + */ + if (fll && (sample_type & PERF_SAMPLE_WEIGHT)) + data.weight = pebs->lat; + + /* + * data.data_src encodes the data source + */ + if (sample_type & PERF_SAMPLE_DATA_SRC) { + if (fll) + data.data_src.val = load_latency_data(pebs->dse); + else + data.data_src.val = precise_store_data(pebs->dse); + } + } + /* * We use the interrupt regs as a base because the PEBS record * does not contain a full regs set, specifically it seems to diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c index b43200d..d0f9e5a 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c @@ -17,6 +17,9 @@ static struct event_constraint constraint_fixed = static struct event_constraint constraint_empty = EVENT_CONSTRAINT(0, 0, 0); +#define __BITS_VALUE(x, i, n) ((typeof(x))(((x) >> ((i) * (n))) & \ + ((1ULL << (n)) - 1))) + DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7"); DEFINE_UNCORE_FORMAT_ATTR(event_ext, event, "config:0-7,21"); DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15"); @@ -31,9 +34,13 @@ DEFINE_UNCORE_FORMAT_ATTR(occ_sel, occ_sel, "config:14-15"); DEFINE_UNCORE_FORMAT_ATTR(occ_invert, occ_invert, "config:30"); DEFINE_UNCORE_FORMAT_ATTR(occ_edge, occ_edge, "config:14-51"); DEFINE_UNCORE_FORMAT_ATTR(filter_tid, filter_tid, "config1:0-4"); +DEFINE_UNCORE_FORMAT_ATTR(filter_link, filter_link, "config1:5-8"); DEFINE_UNCORE_FORMAT_ATTR(filter_nid, filter_nid, "config1:10-17"); +DEFINE_UNCORE_FORMAT_ATTR(filter_nid2, filter_nid, "config1:32-47"); DEFINE_UNCORE_FORMAT_ATTR(filter_state, filter_state, "config1:18-22"); +DEFINE_UNCORE_FORMAT_ATTR(filter_state2, filter_state, "config1:17-22"); DEFINE_UNCORE_FORMAT_ATTR(filter_opc, filter_opc, "config1:23-31"); +DEFINE_UNCORE_FORMAT_ATTR(filter_opc2, filter_opc, "config1:52-60"); DEFINE_UNCORE_FORMAT_ATTR(filter_band0, filter_band0, "config1:0-7"); DEFINE_UNCORE_FORMAT_ATTR(filter_band1, filter_band1, "config1:8-15"); DEFINE_UNCORE_FORMAT_ATTR(filter_band2, filter_band2, "config1:16-23"); @@ -110,6 +117,21 @@ static void uncore_put_constraint(struct intel_uncore_box *box, struct perf_even reg1->alloc = 0; } +static u64 uncore_shared_reg_config(struct intel_uncore_box *box, int idx) +{ + struct intel_uncore_extra_reg *er; + unsigned long flags; + u64 config; + + er = &box->shared_regs[idx]; + + raw_spin_lock_irqsave(&er->lock, flags); + config = er->config; + raw_spin_unlock_irqrestore(&er->lock, flags); + + return config; +} + /* Sandy Bridge-EP uncore support */ static struct intel_uncore_type snbep_uncore_cbox; static struct intel_uncore_type snbep_uncore_pcu; @@ -205,7 +227,7 @@ static void snbep_uncore_msr_enable_event(struct intel_uncore_box *box, struct p struct hw_perf_event_extra *reg1 = &hwc->extra_reg; if (reg1->idx != EXTRA_REG_NONE) - wrmsrl(reg1->reg, reg1->config); + wrmsrl(reg1->reg, uncore_shared_reg_config(box, 0)); wrmsrl(hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN); } @@ -226,29 +248,6 @@ static void snbep_uncore_msr_init_box(struct intel_uncore_box *box) wrmsrl(msr, SNBEP_PMON_BOX_CTL_INT); } -static int snbep_uncore_hw_config(struct intel_uncore_box *box, struct perf_event *event) -{ - struct hw_perf_event *hwc = &event->hw; - struct hw_perf_event_extra *reg1 = &hwc->extra_reg; - - if (box->pmu->type == &snbep_uncore_cbox) { - reg1->reg = SNBEP_C0_MSR_PMON_BOX_FILTER + - SNBEP_CBO_MSR_OFFSET * box->pmu->pmu_idx; - reg1->config = event->attr.config1 & - SNBEP_CB0_MSR_PMON_BOX_FILTER_MASK; - } else { - if (box->pmu->type == &snbep_uncore_pcu) { - reg1->reg = SNBEP_PCU_MSR_PMON_BOX_FILTER; - reg1->config = event->attr.config1 & SNBEP_PCU_MSR_PMON_BOX_FILTER_MASK; - } else { - return 0; - } - } - reg1->idx = 0; - - return 0; -} - static struct attribute *snbep_uncore_formats_attr[] = { &format_attr_event.attr, &format_attr_umask.attr, @@ -345,16 +344,16 @@ static struct attribute_group snbep_uncore_qpi_format_group = { .attrs = snbep_uncore_qpi_formats_attr, }; +#define SNBEP_UNCORE_MSR_OPS_COMMON_INIT() \ + .init_box = snbep_uncore_msr_init_box, \ + .disable_box = snbep_uncore_msr_disable_box, \ + .enable_box = snbep_uncore_msr_enable_box, \ + .disable_event = snbep_uncore_msr_disable_event, \ + .enable_event = snbep_uncore_msr_enable_event, \ + .read_counter = uncore_msr_read_counter + static struct intel_uncore_ops snbep_uncore_msr_ops = { - .init_box = snbep_uncore_msr_init_box, - .disable_box = snbep_uncore_msr_disable_box, - .enable_box = snbep_uncore_msr_enable_box, - .disable_event = snbep_uncore_msr_disable_event, - .enable_event = snbep_uncore_msr_enable_event, - .read_counter = uncore_msr_read_counter, - .get_constraint = uncore_get_constraint, - .put_constraint = uncore_put_constraint, - .hw_config = snbep_uncore_hw_config, + SNBEP_UNCORE_MSR_OPS_COMMON_INIT(), }; static struct intel_uncore_ops snbep_uncore_pci_ops = { @@ -372,6 +371,7 @@ static struct event_constraint snbep_uncore_cbox_constraints[] = { UNCORE_EVENT_CONSTRAINT(0x04, 0x3), UNCORE_EVENT_CONSTRAINT(0x05, 0x3), UNCORE_EVENT_CONSTRAINT(0x07, 0x3), + UNCORE_EVENT_CONSTRAINT(0x09, 0x3), UNCORE_EVENT_CONSTRAINT(0x11, 0x1), UNCORE_EVENT_CONSTRAINT(0x12, 0x3), UNCORE_EVENT_CONSTRAINT(0x13, 0x3), @@ -421,6 +421,14 @@ static struct event_constraint snbep_uncore_r3qpi_constraints[] = { UNCORE_EVENT_CONSTRAINT(0x24, 0x3), UNCORE_EVENT_CONSTRAINT(0x25, 0x3), UNCORE_EVENT_CONSTRAINT(0x26, 0x3), + UNCORE_EVENT_CONSTRAINT(0x28, 0x3), + UNCORE_EVENT_CONSTRAINT(0x29, 0x3), + UNCORE_EVENT_CONSTRAINT(0x2a, 0x3), + UNCORE_EVENT_CONSTRAINT(0x2b, 0x3), + UNCORE_EVENT_CONSTRAINT(0x2c, 0x3), + UNCORE_EVENT_CONSTRAINT(0x2d, 0x3), + UNCORE_EVENT_CONSTRAINT(0x2e, 0x3), + UNCORE_EVENT_CONSTRAINT(0x2f, 0x3), UNCORE_EVENT_CONSTRAINT(0x30, 0x3), UNCORE_EVENT_CONSTRAINT(0x31, 0x3), UNCORE_EVENT_CONSTRAINT(0x32, 0x3), @@ -428,6 +436,8 @@ static struct event_constraint snbep_uncore_r3qpi_constraints[] = { UNCORE_EVENT_CONSTRAINT(0x34, 0x3), UNCORE_EVENT_CONSTRAINT(0x36, 0x3), UNCORE_EVENT_CONSTRAINT(0x37, 0x3), + UNCORE_EVENT_CONSTRAINT(0x38, 0x3), + UNCORE_EVENT_CONSTRAINT(0x39, 0x3), EVENT_CONSTRAINT_END }; @@ -446,6 +456,145 @@ static struct intel_uncore_type snbep_uncore_ubox = { .format_group = &snbep_uncore_ubox_format_group, }; +static struct extra_reg snbep_uncore_cbox_extra_regs[] = { + SNBEP_CBO_EVENT_EXTRA_REG(SNBEP_CBO_PMON_CTL_TID_EN, + SNBEP_CBO_PMON_CTL_TID_EN, 0x1), + SNBEP_CBO_EVENT_EXTRA_REG(0x0334, 0xffff, 0x4), + SNBEP_CBO_EVENT_EXTRA_REG(0x0534, 0xffff, 0x4), + SNBEP_CBO_EVENT_EXTRA_REG(0x0934, 0xffff, 0x4), + SNBEP_CBO_EVENT_EXTRA_REG(0x4134, 0xffff, 0x6), + SNBEP_CBO_EVENT_EXTRA_REG(0x0135, 0xffff, 0x8), + SNBEP_CBO_EVENT_EXTRA_REG(0x0335, 0xffff, 0x8), + SNBEP_CBO_EVENT_EXTRA_REG(0x4135, 0xffff, 0xc), + SNBEP_CBO_EVENT_EXTRA_REG(0x4335, 0xffff, 0xc), + SNBEP_CBO_EVENT_EXTRA_REG(0x4435, 0xffff, 0x2), + SNBEP_CBO_EVENT_EXTRA_REG(0x4835, 0xffff, 0x2), + SNBEP_CBO_EVENT_EXTRA_REG(0x4a35, 0xffff, 0x2), + SNBEP_CBO_EVENT_EXTRA_REG(0x5035, 0xffff, 0x2), + SNBEP_CBO_EVENT_EXTRA_REG(0x0136, 0xffff, 0x8), + SNBEP_CBO_EVENT_EXTRA_REG(0x0336, 0xffff, 0x8), + SNBEP_CBO_EVENT_EXTRA_REG(0x4136, 0xffff, 0xc), + SNBEP_CBO_EVENT_EXTRA_REG(0x4336, 0xffff, 0xc), + SNBEP_CBO_EVENT_EXTRA_REG(0x4436, 0xffff, 0x2), + SNBEP_CBO_EVENT_EXTRA_REG(0x4836, 0xffff, 0x2), + SNBEP_CBO_EVENT_EXTRA_REG(0x4a36, 0xffff, 0x2), + SNBEP_CBO_EVENT_EXTRA_REG(0x4037, 0x40ff, 0x2), + EVENT_EXTRA_END +}; + +static void snbep_cbox_put_constraint(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + struct intel_uncore_extra_reg *er = &box->shared_regs[0]; + int i; + + if (uncore_box_is_fake(box)) + return; + + for (i = 0; i < 5; i++) { + if (reg1->alloc & (0x1 << i)) + atomic_sub(1 << (i * 6), &er->ref); + } + reg1->alloc = 0; +} + +static struct event_constraint * +__snbep_cbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event, + u64 (*cbox_filter_mask)(int fields)) +{ + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + struct intel_uncore_extra_reg *er = &box->shared_regs[0]; + int i, alloc = 0; + unsigned long flags; + u64 mask; + + if (reg1->idx == EXTRA_REG_NONE) + return NULL; + + raw_spin_lock_irqsave(&er->lock, flags); + for (i = 0; i < 5; i++) { + if (!(reg1->idx & (0x1 << i))) + continue; + if (!uncore_box_is_fake(box) && (reg1->alloc & (0x1 << i))) + continue; + + mask = cbox_filter_mask(0x1 << i); + if (!__BITS_VALUE(atomic_read(&er->ref), i, 6) || + !((reg1->config ^ er->config) & mask)) { + atomic_add(1 << (i * 6), &er->ref); + er->config &= ~mask; + er->config |= reg1->config & mask; + alloc |= (0x1 << i); + } else { + break; + } + } + raw_spin_unlock_irqrestore(&er->lock, flags); + if (i < 5) + goto fail; + + if (!uncore_box_is_fake(box)) + reg1->alloc |= alloc; + + return 0; +fail: + for (; i >= 0; i--) { + if (alloc & (0x1 << i)) + atomic_sub(1 << (i * 6), &er->ref); + } + return &constraint_empty; +} + +static u64 snbep_cbox_filter_mask(int fields) +{ + u64 mask = 0; + + if (fields & 0x1) + mask |= SNBEP_CB0_MSR_PMON_BOX_FILTER_TID; + if (fields & 0x2) + mask |= SNBEP_CB0_MSR_PMON_BOX_FILTER_NID; + if (fields & 0x4) + mask |= SNBEP_CB0_MSR_PMON_BOX_FILTER_STATE; + if (fields & 0x8) + mask |= SNBEP_CB0_MSR_PMON_BOX_FILTER_OPC; + + return mask; +} + +static struct event_constraint * +snbep_cbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event) +{ + return __snbep_cbox_get_constraint(box, event, snbep_cbox_filter_mask); +} + +static int snbep_cbox_hw_config(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + struct extra_reg *er; + int idx = 0; + + for (er = snbep_uncore_cbox_extra_regs; er->msr; er++) { + if (er->event != (event->hw.config & er->config_mask)) + continue; + idx |= er->idx; + } + + if (idx) { + reg1->reg = SNBEP_C0_MSR_PMON_BOX_FILTER + + SNBEP_CBO_MSR_OFFSET * box->pmu->pmu_idx; + reg1->config = event->attr.config1 & snbep_cbox_filter_mask(idx); + reg1->idx = idx; + } + return 0; +} + +static struct intel_uncore_ops snbep_uncore_cbox_ops = { + SNBEP_UNCORE_MSR_OPS_COMMON_INIT(), + .hw_config = snbep_cbox_hw_config, + .get_constraint = snbep_cbox_get_constraint, + .put_constraint = snbep_cbox_put_constraint, +}; + static struct intel_uncore_type snbep_uncore_cbox = { .name = "cbox", .num_counters = 4, @@ -458,10 +607,104 @@ static struct intel_uncore_type snbep_uncore_cbox = { .msr_offset = SNBEP_CBO_MSR_OFFSET, .num_shared_regs = 1, .constraints = snbep_uncore_cbox_constraints, - .ops = &snbep_uncore_msr_ops, + .ops = &snbep_uncore_cbox_ops, .format_group = &snbep_uncore_cbox_format_group, }; +static u64 snbep_pcu_alter_er(struct perf_event *event, int new_idx, bool modify) +{ + struct hw_perf_event *hwc = &event->hw; + struct hw_perf_event_extra *reg1 = &hwc->extra_reg; + u64 config = reg1->config; + + if (new_idx > reg1->idx) + config <<= 8 * (new_idx - reg1->idx); + else + config >>= 8 * (reg1->idx - new_idx); + + if (modify) { + hwc->config += new_idx - reg1->idx; + reg1->config = config; + reg1->idx = new_idx; + } + return config; +} + +static struct event_constraint * +snbep_pcu_get_constraint(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + struct intel_uncore_extra_reg *er = &box->shared_regs[0]; + unsigned long flags; + int idx = reg1->idx; + u64 mask, config1 = reg1->config; + bool ok = false; + + if (reg1->idx == EXTRA_REG_NONE || + (!uncore_box_is_fake(box) && reg1->alloc)) + return NULL; +again: + mask = 0xff << (idx * 8); + raw_spin_lock_irqsave(&er->lock, flags); + if (!__BITS_VALUE(atomic_read(&er->ref), idx, 8) || + !((config1 ^ er->config) & mask)) { + atomic_add(1 << (idx * 8), &er->ref); + er->config &= ~mask; + er->config |= config1 & mask; + ok = true; + } + raw_spin_unlock_irqrestore(&er->lock, flags); + + if (!ok) { + idx = (idx + 1) % 4; + if (idx != reg1->idx) { + config1 = snbep_pcu_alter_er(event, idx, false); + goto again; + } + return &constraint_empty; + } + + if (!uncore_box_is_fake(box)) { + if (idx != reg1->idx) + snbep_pcu_alter_er(event, idx, true); + reg1->alloc = 1; + } + return NULL; +} + +static void snbep_pcu_put_constraint(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + struct intel_uncore_extra_reg *er = &box->shared_regs[0]; + + if (uncore_box_is_fake(box) || !reg1->alloc) + return; + + atomic_sub(1 << (reg1->idx * 8), &er->ref); + reg1->alloc = 0; +} + +static int snbep_pcu_hw_config(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + struct hw_perf_event_extra *reg1 = &hwc->extra_reg; + int ev_sel = hwc->config & SNBEP_PMON_CTL_EV_SEL_MASK; + + if (ev_sel >= 0xb && ev_sel <= 0xe) { + reg1->reg = SNBEP_PCU_MSR_PMON_BOX_FILTER; + reg1->idx = ev_sel - 0xb; + reg1->config = event->attr.config1 & (0xff << reg1->idx); + } + return 0; +} + +static struct intel_uncore_ops snbep_uncore_pcu_ops = { + SNBEP_UNCORE_MSR_OPS_COMMON_INIT(), + .hw_config = snbep_pcu_hw_config, + .get_constraint = snbep_pcu_get_constraint, + .put_constraint = snbep_pcu_put_constraint, +}; + static struct intel_uncore_type snbep_uncore_pcu = { .name = "pcu", .num_counters = 4, @@ -472,7 +715,7 @@ static struct intel_uncore_type snbep_uncore_pcu = { .event_mask = SNBEP_PCU_MSR_PMON_RAW_EVENT_MASK, .box_ctl = SNBEP_PCU_MSR_PMON_BOX_CTL, .num_shared_regs = 1, - .ops = &snbep_uncore_msr_ops, + .ops = &snbep_uncore_pcu_ops, .format_group = &snbep_uncore_pcu_format_group, }; @@ -544,55 +787,63 @@ static struct intel_uncore_type snbep_uncore_r3qpi = { SNBEP_UNCORE_PCI_COMMON_INIT(), }; +enum { + SNBEP_PCI_UNCORE_HA, + SNBEP_PCI_UNCORE_IMC, + SNBEP_PCI_UNCORE_QPI, + SNBEP_PCI_UNCORE_R2PCIE, + SNBEP_PCI_UNCORE_R3QPI, +}; + static struct intel_uncore_type *snbep_pci_uncores[] = { - &snbep_uncore_ha, - &snbep_uncore_imc, - &snbep_uncore_qpi, - &snbep_uncore_r2pcie, - &snbep_uncore_r3qpi, + [SNBEP_PCI_UNCORE_HA] = &snbep_uncore_ha, + [SNBEP_PCI_UNCORE_IMC] = &snbep_uncore_imc, + [SNBEP_PCI_UNCORE_QPI] = &snbep_uncore_qpi, + [SNBEP_PCI_UNCORE_R2PCIE] = &snbep_uncore_r2pcie, + [SNBEP_PCI_UNCORE_R3QPI] = &snbep_uncore_r3qpi, NULL, }; static DEFINE_PCI_DEVICE_TABLE(snbep_uncore_pci_ids) = { { /* Home Agent */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_HA), - .driver_data = (unsigned long)&snbep_uncore_ha, + .driver_data = SNBEP_PCI_UNCORE_HA, }, { /* MC Channel 0 */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC0), - .driver_data = (unsigned long)&snbep_uncore_imc, + .driver_data = SNBEP_PCI_UNCORE_IMC, }, { /* MC Channel 1 */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC1), - .driver_data = (unsigned long)&snbep_uncore_imc, + .driver_data = SNBEP_PCI_UNCORE_IMC, }, { /* MC Channel 2 */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC2), - .driver_data = (unsigned long)&snbep_uncore_imc, + .driver_data = SNBEP_PCI_UNCORE_IMC, }, { /* MC Channel 3 */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC3), - .driver_data = (unsigned long)&snbep_uncore_imc, + .driver_data = SNBEP_PCI_UNCORE_IMC, }, { /* QPI Port 0 */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_QPI0), - .driver_data = (unsigned long)&snbep_uncore_qpi, + .driver_data = SNBEP_PCI_UNCORE_QPI, }, { /* QPI Port 1 */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_QPI1), - .driver_data = (unsigned long)&snbep_uncore_qpi, + .driver_data = SNBEP_PCI_UNCORE_QPI, }, - { /* P2PCIe */ + { /* R2PCIe */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R2PCIE), - .driver_data = (unsigned long)&snbep_uncore_r2pcie, + .driver_data = SNBEP_PCI_UNCORE_R2PCIE, }, { /* R3QPI Link 0 */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R3QPI0), - .driver_data = (unsigned long)&snbep_uncore_r3qpi, + .driver_data = SNBEP_PCI_UNCORE_R3QPI, }, { /* R3QPI Link 1 */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R3QPI1), - .driver_data = (unsigned long)&snbep_uncore_r3qpi, + .driver_data = SNBEP_PCI_UNCORE_R3QPI, }, { /* end: all zeroes */ } }; @@ -605,7 +856,7 @@ static struct pci_driver snbep_uncore_pci_driver = { /* * build pci bus to socket mapping */ -static int snbep_pci2phy_map_init(void) +static int snbep_pci2phy_map_init(int devid) { struct pci_dev *ubox_dev = NULL; int i, bus, nodeid; @@ -614,9 +865,7 @@ static int snbep_pci2phy_map_init(void) while (1) { /* find the UBOX device */ - ubox_dev = pci_get_device(PCI_VENDOR_ID_INTEL, - PCI_DEVICE_ID_INTEL_JAKETOWN_UBOX, - ubox_dev); + ubox_dev = pci_get_device(PCI_VENDOR_ID_INTEL, devid, ubox_dev); if (!ubox_dev) break; bus = ubox_dev->bus->number; @@ -639,7 +888,7 @@ static int snbep_pci2phy_map_init(void) break; } } - }; + } if (ubox_dev) pci_dev_put(ubox_dev); @@ -648,6 +897,440 @@ static int snbep_pci2phy_map_init(void) } /* end of Sandy Bridge-EP uncore support */ +/* IvyTown uncore support */ +static void ivt_uncore_msr_init_box(struct intel_uncore_box *box) +{ + unsigned msr = uncore_msr_box_ctl(box); + if (msr) + wrmsrl(msr, IVT_PMON_BOX_CTL_INT); +} + +static void ivt_uncore_pci_init_box(struct intel_uncore_box *box) +{ + struct pci_dev *pdev = box->pci_dev; + + pci_write_config_dword(pdev, SNBEP_PCI_PMON_BOX_CTL, IVT_PMON_BOX_CTL_INT); +} + +#define IVT_UNCORE_MSR_OPS_COMMON_INIT() \ + .init_box = ivt_uncore_msr_init_box, \ + .disable_box = snbep_uncore_msr_disable_box, \ + .enable_box = snbep_uncore_msr_enable_box, \ + .disable_event = snbep_uncore_msr_disable_event, \ + .enable_event = snbep_uncore_msr_enable_event, \ + .read_counter = uncore_msr_read_counter + +static struct intel_uncore_ops ivt_uncore_msr_ops = { + IVT_UNCORE_MSR_OPS_COMMON_INIT(), +}; + +static struct intel_uncore_ops ivt_uncore_pci_ops = { + .init_box = ivt_uncore_pci_init_box, + .disable_box = snbep_uncore_pci_disable_box, + .enable_box = snbep_uncore_pci_enable_box, + .disable_event = snbep_uncore_pci_disable_event, + .enable_event = snbep_uncore_pci_enable_event, + .read_counter = snbep_uncore_pci_read_counter, +}; + +#define IVT_UNCORE_PCI_COMMON_INIT() \ + .perf_ctr = SNBEP_PCI_PMON_CTR0, \ + .event_ctl = SNBEP_PCI_PMON_CTL0, \ + .event_mask = IVT_PMON_RAW_EVENT_MASK, \ + .box_ctl = SNBEP_PCI_PMON_BOX_CTL, \ + .ops = &ivt_uncore_pci_ops, \ + .format_group = &ivt_uncore_format_group + +static struct attribute *ivt_uncore_formats_attr[] = { + &format_attr_event.attr, + &format_attr_umask.attr, + &format_attr_edge.attr, + &format_attr_inv.attr, + &format_attr_thresh8.attr, + NULL, +}; + +static struct attribute *ivt_uncore_ubox_formats_attr[] = { + &format_attr_event.attr, + &format_attr_umask.attr, + &format_attr_edge.attr, + &format_attr_inv.attr, + &format_attr_thresh5.attr, + NULL, +}; + +static struct attribute *ivt_uncore_cbox_formats_attr[] = { + &format_attr_event.attr, + &format_attr_umask.attr, + &format_attr_edge.attr, + &format_attr_tid_en.attr, + &format_attr_thresh8.attr, + &format_attr_filter_tid.attr, + &format_attr_filter_link.attr, + &format_attr_filter_state2.attr, + &format_attr_filter_nid2.attr, + &format_attr_filter_opc2.attr, + NULL, +}; + +static struct attribute *ivt_uncore_pcu_formats_attr[] = { + &format_attr_event_ext.attr, + &format_attr_occ_sel.attr, + &format_attr_edge.attr, + &format_attr_thresh5.attr, + &format_attr_occ_invert.attr, + &format_attr_occ_edge.attr, + &format_attr_filter_band0.attr, + &format_attr_filter_band1.attr, + &format_attr_filter_band2.attr, + &format_attr_filter_band3.attr, + NULL, +}; + +static struct attribute *ivt_uncore_qpi_formats_attr[] = { + &format_attr_event_ext.attr, + &format_attr_umask.attr, + &format_attr_edge.attr, + &format_attr_thresh8.attr, + NULL, +}; + +static struct attribute_group ivt_uncore_format_group = { + .name = "format", + .attrs = ivt_uncore_formats_attr, +}; + +static struct attribute_group ivt_uncore_ubox_format_group = { + .name = "format", + .attrs = ivt_uncore_ubox_formats_attr, +}; + +static struct attribute_group ivt_uncore_cbox_format_group = { + .name = "format", + .attrs = ivt_uncore_cbox_formats_attr, +}; + +static struct attribute_group ivt_uncore_pcu_format_group = { + .name = "format", + .attrs = ivt_uncore_pcu_formats_attr, +}; + +static struct attribute_group ivt_uncore_qpi_format_group = { + .name = "format", + .attrs = ivt_uncore_qpi_formats_attr, +}; + +static struct intel_uncore_type ivt_uncore_ubox = { + .name = "ubox", + .num_counters = 2, + .num_boxes = 1, + .perf_ctr_bits = 44, + .fixed_ctr_bits = 48, + .perf_ctr = SNBEP_U_MSR_PMON_CTR0, + .event_ctl = SNBEP_U_MSR_PMON_CTL0, + .event_mask = IVT_U_MSR_PMON_RAW_EVENT_MASK, + .fixed_ctr = SNBEP_U_MSR_PMON_UCLK_FIXED_CTR, + .fixed_ctl = SNBEP_U_MSR_PMON_UCLK_FIXED_CTL, + .ops = &ivt_uncore_msr_ops, + .format_group = &ivt_uncore_ubox_format_group, +}; + +static struct extra_reg ivt_uncore_cbox_extra_regs[] = { + SNBEP_CBO_EVENT_EXTRA_REG(SNBEP_CBO_PMON_CTL_TID_EN, + SNBEP_CBO_PMON_CTL_TID_EN, 0x1), + SNBEP_CBO_EVENT_EXTRA_REG(0x1031, 0x10ff, 0x2), + SNBEP_CBO_EVENT_EXTRA_REG(0x0334, 0xffff, 0x4), + SNBEP_CBO_EVENT_EXTRA_REG(0x0534, 0xffff, 0x4), + SNBEP_CBO_EVENT_EXTRA_REG(0x0934, 0xffff, 0x4), + SNBEP_CBO_EVENT_EXTRA_REG(0x4134, 0xffff, 0xc), + SNBEP_CBO_EVENT_EXTRA_REG(0x0135, 0xffff, 0x10), + SNBEP_CBO_EVENT_EXTRA_REG(0x0335, 0xffff, 0x10), + SNBEP_CBO_EVENT_EXTRA_REG(0x2135, 0xffff, 0x10), + SNBEP_CBO_EVENT_EXTRA_REG(0x2335, 0xffff, 0x10), + SNBEP_CBO_EVENT_EXTRA_REG(0x4135, 0xffff, 0x18), + SNBEP_CBO_EVENT_EXTRA_REG(0x4335, 0xffff, 0x18), + SNBEP_CBO_EVENT_EXTRA_REG(0x4435, 0xffff, 0x8), + SNBEP_CBO_EVENT_EXTRA_REG(0x4835, 0xffff, 0x8), + SNBEP_CBO_EVENT_EXTRA_REG(0x4a35, 0xffff, 0x8), + SNBEP_CBO_EVENT_EXTRA_REG(0x5035, 0xffff, 0x8), + SNBEP_CBO_EVENT_EXTRA_REG(0x8135, 0xffff, 0x10), + SNBEP_CBO_EVENT_EXTRA_REG(0x8335, 0xffff, 0x10), + SNBEP_CBO_EVENT_EXTRA_REG(0x0136, 0xffff, 0x10), + SNBEP_CBO_EVENT_EXTRA_REG(0x0336, 0xffff, 0x10), + SNBEP_CBO_EVENT_EXTRA_REG(0x2336, 0xffff, 0x10), + SNBEP_CBO_EVENT_EXTRA_REG(0x2336, 0xffff, 0x10), + SNBEP_CBO_EVENT_EXTRA_REG(0x4136, 0xffff, 0x18), + SNBEP_CBO_EVENT_EXTRA_REG(0x4336, 0xffff, 0x18), + SNBEP_CBO_EVENT_EXTRA_REG(0x4436, 0xffff, 0x8), + SNBEP_CBO_EVENT_EXTRA_REG(0x4836, 0xffff, 0x8), + SNBEP_CBO_EVENT_EXTRA_REG(0x4a36, 0xffff, 0x8), + SNBEP_CBO_EVENT_EXTRA_REG(0x5036, 0xffff, 0x8), + SNBEP_CBO_EVENT_EXTRA_REG(0x8136, 0xffff, 0x10), + SNBEP_CBO_EVENT_EXTRA_REG(0x8336, 0xffff, 0x10), + SNBEP_CBO_EVENT_EXTRA_REG(0x4037, 0x40ff, 0x8), + EVENT_EXTRA_END +}; + +static u64 ivt_cbox_filter_mask(int fields) +{ + u64 mask = 0; + + if (fields & 0x1) + mask |= IVT_CB0_MSR_PMON_BOX_FILTER_TID; + if (fields & 0x2) + mask |= IVT_CB0_MSR_PMON_BOX_FILTER_LINK; + if (fields & 0x4) + mask |= IVT_CB0_MSR_PMON_BOX_FILTER_STATE; + if (fields & 0x8) + mask |= IVT_CB0_MSR_PMON_BOX_FILTER_NID; + if (fields & 0x10) + mask |= IVT_CB0_MSR_PMON_BOX_FILTER_OPC; + + return mask; +} + +static struct event_constraint * +ivt_cbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event) +{ + return __snbep_cbox_get_constraint(box, event, ivt_cbox_filter_mask); +} + +static int ivt_cbox_hw_config(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + struct extra_reg *er; + int idx = 0; + + for (er = ivt_uncore_cbox_extra_regs; er->msr; er++) { + if (er->event != (event->hw.config & er->config_mask)) + continue; + idx |= er->idx; + } + + if (idx) { + reg1->reg = SNBEP_C0_MSR_PMON_BOX_FILTER + + SNBEP_CBO_MSR_OFFSET * box->pmu->pmu_idx; + reg1->config = event->attr.config1 & ivt_cbox_filter_mask(idx); + reg1->idx = idx; + } + return 0; +} + +static void ivt_cbox_enable_event(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + struct hw_perf_event_extra *reg1 = &hwc->extra_reg; + + if (reg1->idx != EXTRA_REG_NONE) { + u64 filter = uncore_shared_reg_config(box, 0); + wrmsrl(reg1->reg, filter & 0xffffffff); + wrmsrl(reg1->reg + 6, filter >> 32); + } + + wrmsrl(hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN); +} + +static struct intel_uncore_ops ivt_uncore_cbox_ops = { + .init_box = ivt_uncore_msr_init_box, + .disable_box = snbep_uncore_msr_disable_box, + .enable_box = snbep_uncore_msr_enable_box, + .disable_event = snbep_uncore_msr_disable_event, + .enable_event = ivt_cbox_enable_event, + .read_counter = uncore_msr_read_counter, + .hw_config = ivt_cbox_hw_config, + .get_constraint = ivt_cbox_get_constraint, + .put_constraint = snbep_cbox_put_constraint, +}; + +static struct intel_uncore_type ivt_uncore_cbox = { + .name = "cbox", + .num_counters = 4, + .num_boxes = 15, + .perf_ctr_bits = 44, + .event_ctl = SNBEP_C0_MSR_PMON_CTL0, + .perf_ctr = SNBEP_C0_MSR_PMON_CTR0, + .event_mask = IVT_CBO_MSR_PMON_RAW_EVENT_MASK, + .box_ctl = SNBEP_C0_MSR_PMON_BOX_CTL, + .msr_offset = SNBEP_CBO_MSR_OFFSET, + .num_shared_regs = 1, + .constraints = snbep_uncore_cbox_constraints, + .ops = &ivt_uncore_cbox_ops, + .format_group = &ivt_uncore_cbox_format_group, +}; + +static struct intel_uncore_ops ivt_uncore_pcu_ops = { + IVT_UNCORE_MSR_OPS_COMMON_INIT(), + .hw_config = snbep_pcu_hw_config, + .get_constraint = snbep_pcu_get_constraint, + .put_constraint = snbep_pcu_put_constraint, +}; + +static struct intel_uncore_type ivt_uncore_pcu = { + .name = "pcu", + .num_counters = 4, + .num_boxes = 1, + .perf_ctr_bits = 48, + .perf_ctr = SNBEP_PCU_MSR_PMON_CTR0, + .event_ctl = SNBEP_PCU_MSR_PMON_CTL0, + .event_mask = IVT_PCU_MSR_PMON_RAW_EVENT_MASK, + .box_ctl = SNBEP_PCU_MSR_PMON_BOX_CTL, + .num_shared_regs = 1, + .ops = &ivt_uncore_pcu_ops, + .format_group = &ivt_uncore_pcu_format_group, +}; + +static struct intel_uncore_type *ivt_msr_uncores[] = { + &ivt_uncore_ubox, + &ivt_uncore_cbox, + &ivt_uncore_pcu, + NULL, +}; + +static struct intel_uncore_type ivt_uncore_ha = { + .name = "ha", + .num_counters = 4, + .num_boxes = 2, + .perf_ctr_bits = 48, + IVT_UNCORE_PCI_COMMON_INIT(), +}; + +static struct intel_uncore_type ivt_uncore_imc = { + .name = "imc", + .num_counters = 4, + .num_boxes = 8, + .perf_ctr_bits = 48, + .fixed_ctr_bits = 48, + .fixed_ctr = SNBEP_MC_CHy_PCI_PMON_FIXED_CTR, + .fixed_ctl = SNBEP_MC_CHy_PCI_PMON_FIXED_CTL, + IVT_UNCORE_PCI_COMMON_INIT(), +}; + +static struct intel_uncore_type ivt_uncore_qpi = { + .name = "qpi", + .num_counters = 4, + .num_boxes = 3, + .perf_ctr_bits = 48, + .perf_ctr = SNBEP_PCI_PMON_CTR0, + .event_ctl = SNBEP_PCI_PMON_CTL0, + .event_mask = IVT_QPI_PCI_PMON_RAW_EVENT_MASK, + .box_ctl = SNBEP_PCI_PMON_BOX_CTL, + .ops = &ivt_uncore_pci_ops, + .format_group = &ivt_uncore_qpi_format_group, +}; + +static struct intel_uncore_type ivt_uncore_r2pcie = { + .name = "r2pcie", + .num_counters = 4, + .num_boxes = 1, + .perf_ctr_bits = 44, + .constraints = snbep_uncore_r2pcie_constraints, + IVT_UNCORE_PCI_COMMON_INIT(), +}; + +static struct intel_uncore_type ivt_uncore_r3qpi = { + .name = "r3qpi", + .num_counters = 3, + .num_boxes = 2, + .perf_ctr_bits = 44, + .constraints = snbep_uncore_r3qpi_constraints, + IVT_UNCORE_PCI_COMMON_INIT(), +}; + +enum { + IVT_PCI_UNCORE_HA, + IVT_PCI_UNCORE_IMC, + IVT_PCI_UNCORE_QPI, + IVT_PCI_UNCORE_R2PCIE, + IVT_PCI_UNCORE_R3QPI, +}; + +static struct intel_uncore_type *ivt_pci_uncores[] = { + [IVT_PCI_UNCORE_HA] = &ivt_uncore_ha, + [IVT_PCI_UNCORE_IMC] = &ivt_uncore_imc, + [IVT_PCI_UNCORE_QPI] = &ivt_uncore_qpi, + [IVT_PCI_UNCORE_R2PCIE] = &ivt_uncore_r2pcie, + [IVT_PCI_UNCORE_R3QPI] = &ivt_uncore_r3qpi, + NULL, +}; + +static DEFINE_PCI_DEVICE_TABLE(ivt_uncore_pci_ids) = { + { /* Home Agent 0 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe30), + .driver_data = IVT_PCI_UNCORE_HA, + }, + { /* Home Agent 1 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe38), + .driver_data = IVT_PCI_UNCORE_HA, + }, + { /* MC0 Channel 0 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb4), + .driver_data = IVT_PCI_UNCORE_IMC, + }, + { /* MC0 Channel 1 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb5), + .driver_data = IVT_PCI_UNCORE_IMC, + }, + { /* MC0 Channel 3 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb0), + .driver_data = IVT_PCI_UNCORE_IMC, + }, + { /* MC0 Channel 4 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb1), + .driver_data = IVT_PCI_UNCORE_IMC, + }, + { /* MC1 Channel 0 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef4), + .driver_data = IVT_PCI_UNCORE_IMC, + }, + { /* MC1 Channel 1 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef5), + .driver_data = IVT_PCI_UNCORE_IMC, + }, + { /* MC1 Channel 3 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef0), + .driver_data = IVT_PCI_UNCORE_IMC, + }, + { /* MC1 Channel 4 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef1), + .driver_data = IVT_PCI_UNCORE_IMC, + }, + { /* QPI0 Port 0 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe32), + .driver_data = IVT_PCI_UNCORE_QPI, + }, + { /* QPI0 Port 1 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe33), + .driver_data = IVT_PCI_UNCORE_QPI, + }, + { /* QPI1 Port 2 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe3a), + .driver_data = IVT_PCI_UNCORE_QPI, + }, + { /* R2PCIe */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe34), + .driver_data = IVT_PCI_UNCORE_R2PCIE, + }, + { /* R3QPI0 Link 0 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe36), + .driver_data = IVT_PCI_UNCORE_R3QPI, + }, + { /* R3QPI0 Link 1 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe37), + .driver_data = IVT_PCI_UNCORE_R3QPI, + }, + { /* R3QPI1 Link 2 */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe3e), + .driver_data = IVT_PCI_UNCORE_R3QPI, + }, + { /* end: all zeroes */ } +}; + +static struct pci_driver ivt_uncore_pci_driver = { + .name = "ivt_uncore", + .id_table = ivt_uncore_pci_ids, +}; +/* end of IvyTown uncore support */ + /* Sandy Bridge uncore support */ static void snb_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event) { @@ -808,9 +1491,6 @@ static struct intel_uncore_type *nhm_msr_uncores[] = { /* end of Nehalem uncore support */ /* Nehalem-EX uncore support */ -#define __BITS_VALUE(x, i, n) ((typeof(x))(((x) >> ((i) * (n))) & \ - ((1ULL << (n)) - 1))) - DEFINE_UNCORE_FORMAT_ATTR(event5, event, "config:1-5"); DEFINE_UNCORE_FORMAT_ATTR(counter, counter, "config:6-7"); DEFINE_UNCORE_FORMAT_ATTR(match, match, "config1:0-63"); @@ -1161,7 +1841,7 @@ static struct extra_reg nhmex_uncore_mbox_extra_regs[] = { }; /* Nehalem-EX or Westmere-EX ? */ -bool uncore_nhmex; +static bool uncore_nhmex; static bool nhmex_mbox_get_shared_reg(struct intel_uncore_box *box, int idx, u64 config) { @@ -1239,7 +1919,7 @@ static void nhmex_mbox_put_shared_reg(struct intel_uncore_box *box, int idx) atomic_sub(1 << (idx * 8), &er->ref); } -u64 nhmex_mbox_alter_er(struct perf_event *event, int new_idx, bool modify) +static u64 nhmex_mbox_alter_er(struct perf_event *event, int new_idx, bool modify) { struct hw_perf_event *hwc = &event->hw; struct hw_perf_event_extra *reg1 = &hwc->extra_reg; @@ -1554,7 +2234,7 @@ static struct intel_uncore_type nhmex_uncore_mbox = { .format_group = &nhmex_uncore_mbox_format_group, }; -void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event) +static void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; struct hw_perf_event_extra *reg1 = &hwc->extra_reg; @@ -1724,21 +2404,6 @@ static int nhmex_rbox_hw_config(struct intel_uncore_box *box, struct perf_event return 0; } -static u64 nhmex_rbox_shared_reg_config(struct intel_uncore_box *box, int idx) -{ - struct intel_uncore_extra_reg *er; - unsigned long flags; - u64 config; - - er = &box->shared_regs[idx]; - - raw_spin_lock_irqsave(&er->lock, flags); - config = er->config; - raw_spin_unlock_irqrestore(&er->lock, flags); - - return config; -} - static void nhmex_rbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; @@ -1759,7 +2424,7 @@ static void nhmex_rbox_msr_enable_event(struct intel_uncore_box *box, struct per case 2: case 3: wrmsrl(NHMEX_R_MSR_PORTN_QLX_CFG(port), - nhmex_rbox_shared_reg_config(box, 2 + (idx / 6) * 5)); + uncore_shared_reg_config(box, 2 + (idx / 6) * 5)); break; case 4: wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(port), @@ -2285,7 +2950,7 @@ out: return ret; } -int uncore_pmu_event_init(struct perf_event *event) +static int uncore_pmu_event_init(struct perf_event *event) { struct intel_uncore_pmu *pmu; struct intel_uncore_box *box; @@ -2438,7 +3103,7 @@ static int __init uncore_type_init(struct intel_uncore_type *type) type->unconstrainted = (struct event_constraint) __EVENT_CONSTRAINT(0, (1ULL << type->num_counters) - 1, - 0, type->num_counters, 0); + 0, type->num_counters, 0, 0); for (i = 0; i < type->num_boxes; i++) { pmus[i].func_id = -1; @@ -2556,6 +3221,8 @@ static void uncore_pci_remove(struct pci_dev *pdev) if (WARN_ON_ONCE(phys_id != box->phys_id)) return; + pci_set_drvdata(pdev, NULL); + raw_spin_lock(&uncore_box_lock); list_del(&box->list); raw_spin_unlock(&uncore_box_lock); @@ -2574,11 +3241,7 @@ static void uncore_pci_remove(struct pci_dev *pdev) static int uncore_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { - struct intel_uncore_type *type; - - type = (struct intel_uncore_type *)id->driver_data; - - return uncore_pci_add(type, pdev); + return uncore_pci_add(pci_uncores[id->driver_data], pdev); } static int __init uncore_pci_init(void) @@ -2587,12 +3250,19 @@ static int __init uncore_pci_init(void) switch (boot_cpu_data.x86_model) { case 45: /* Sandy Bridge-EP */ - ret = snbep_pci2phy_map_init(); + ret = snbep_pci2phy_map_init(0x3ce0); if (ret) return ret; pci_uncores = snbep_pci_uncores; uncore_pci_driver = &snbep_uncore_pci_driver; break; + case 62: /* IvyTown */ + ret = snbep_pci2phy_map_init(0x0e1e); + if (ret) + return ret; + pci_uncores = ivt_pci_uncores; + uncore_pci_driver = &ivt_uncore_pci_driver; + break; default: return 0; } @@ -2622,6 +3292,21 @@ static void __init uncore_pci_exit(void) } } +/* CPU hot plug/unplug are serialized by cpu_add_remove_lock mutex */ +static LIST_HEAD(boxes_to_free); + +static void __cpuinit uncore_kfree_boxes(void) +{ + struct intel_uncore_box *box; + + while (!list_empty(&boxes_to_free)) { + box = list_entry(boxes_to_free.next, + struct intel_uncore_box, list); + list_del(&box->list); + kfree(box); + } +} + static void __cpuinit uncore_cpu_dying(int cpu) { struct intel_uncore_type *type; @@ -2636,7 +3321,7 @@ static void __cpuinit uncore_cpu_dying(int cpu) box = *per_cpu_ptr(pmu->box, cpu); *per_cpu_ptr(pmu->box, cpu) = NULL; if (box && atomic_dec_and_test(&box->refcnt)) - kfree(box); + list_add(&box->list, &boxes_to_free); } } } @@ -2666,8 +3351,11 @@ static int __cpuinit uncore_cpu_starting(int cpu) if (exist && exist->phys_id == phys_id) { atomic_inc(&exist->refcnt); *per_cpu_ptr(pmu->box, cpu) = exist; - kfree(box); - box = NULL; + if (box) { + list_add(&box->list, + &boxes_to_free); + box = NULL; + } break; } } @@ -2806,6 +3494,10 @@ static int case CPU_DYING: uncore_cpu_dying(cpu); break; + case CPU_ONLINE: + case CPU_DEAD: + uncore_kfree_boxes(); + break; default: break; } @@ -2871,6 +3563,12 @@ static int __init uncore_cpu_init(void) nhmex_uncore_cbox.num_boxes = max_cores; msr_uncores = nhmex_msr_uncores; break; + case 62: /* IvyTown */ + if (ivt_uncore_cbox.num_boxes > max_cores) + ivt_uncore_cbox.num_boxes = max_cores; + msr_uncores = ivt_msr_uncores; + break; + default: return 0; } diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h index e68a455..f952891 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h @@ -76,7 +76,7 @@ #define SNBEP_PMON_CTL_UMASK_MASK 0x0000ff00 #define SNBEP_PMON_CTL_RST (1 << 17) #define SNBEP_PMON_CTL_EDGE_DET (1 << 18) -#define SNBEP_PMON_CTL_EV_SEL_EXT (1 << 21) /* only for QPI */ +#define SNBEP_PMON_CTL_EV_SEL_EXT (1 << 21) #define SNBEP_PMON_CTL_EN (1 << 22) #define SNBEP_PMON_CTL_INVERT (1 << 23) #define SNBEP_PMON_CTL_TRESH_MASK 0xff000000 @@ -148,9 +148,20 @@ #define SNBEP_C0_MSR_PMON_CTL0 0xd10 #define SNBEP_C0_MSR_PMON_BOX_CTL 0xd04 #define SNBEP_C0_MSR_PMON_BOX_FILTER 0xd14 -#define SNBEP_CB0_MSR_PMON_BOX_FILTER_MASK 0xfffffc1f #define SNBEP_CBO_MSR_OFFSET 0x20 +#define SNBEP_CB0_MSR_PMON_BOX_FILTER_TID 0x1f +#define SNBEP_CB0_MSR_PMON_BOX_FILTER_NID 0x3fc00 +#define SNBEP_CB0_MSR_PMON_BOX_FILTER_STATE 0x7c0000 +#define SNBEP_CB0_MSR_PMON_BOX_FILTER_OPC 0xff800000 + +#define SNBEP_CBO_EVENT_EXTRA_REG(e, m, i) { \ + .event = (e), \ + .msr = SNBEP_C0_MSR_PMON_BOX_FILTER, \ + .config_mask = (m), \ + .idx = (i) \ +} + /* SNB-EP PCU register */ #define SNBEP_PCU_MSR_PMON_CTR0 0xc36 #define SNBEP_PCU_MSR_PMON_CTL0 0xc30 @@ -160,6 +171,55 @@ #define SNBEP_PCU_MSR_CORE_C3_CTR 0x3fc #define SNBEP_PCU_MSR_CORE_C6_CTR 0x3fd +/* IVT event control */ +#define IVT_PMON_BOX_CTL_INT (SNBEP_PMON_BOX_CTL_RST_CTRL | \ + SNBEP_PMON_BOX_CTL_RST_CTRS) +#define IVT_PMON_RAW_EVENT_MASK (SNBEP_PMON_CTL_EV_SEL_MASK | \ + SNBEP_PMON_CTL_UMASK_MASK | \ + SNBEP_PMON_CTL_EDGE_DET | \ + SNBEP_PMON_CTL_TRESH_MASK) +/* IVT Ubox */ +#define IVT_U_MSR_PMON_GLOBAL_CTL 0xc00 +#define IVT_U_PMON_GLOBAL_FRZ_ALL (1 << 31) +#define IVT_U_PMON_GLOBAL_UNFRZ_ALL (1 << 29) + +#define IVT_U_MSR_PMON_RAW_EVENT_MASK \ + (SNBEP_PMON_CTL_EV_SEL_MASK | \ + SNBEP_PMON_CTL_UMASK_MASK | \ + SNBEP_PMON_CTL_EDGE_DET | \ + SNBEP_U_MSR_PMON_CTL_TRESH_MASK) +/* IVT Cbo */ +#define IVT_CBO_MSR_PMON_RAW_EVENT_MASK (IVT_PMON_RAW_EVENT_MASK | \ + SNBEP_CBO_PMON_CTL_TID_EN) + +#define IVT_CB0_MSR_PMON_BOX_FILTER_TID (0x1fULL << 0) +#define IVT_CB0_MSR_PMON_BOX_FILTER_LINK (0xfULL << 5) +#define IVT_CB0_MSR_PMON_BOX_FILTER_STATE (0x3fULL << 17) +#define IVT_CB0_MSR_PMON_BOX_FILTER_NID (0xffffULL << 32) +#define IVT_CB0_MSR_PMON_BOX_FILTER_OPC (0x1ffULL << 52) +#define IVT_CB0_MSR_PMON_BOX_FILTER_C6 (0x1ULL << 61) +#define IVT_CB0_MSR_PMON_BOX_FILTER_NC (0x1ULL << 62) +#define IVT_CB0_MSR_PMON_BOX_FILTER_IOSC (0x1ULL << 63) + +/* IVT home agent */ +#define IVT_HA_PCI_PMON_CTL_Q_OCC_RST (1 << 16) +#define IVT_HA_PCI_PMON_RAW_EVENT_MASK \ + (IVT_PMON_RAW_EVENT_MASK | \ + IVT_HA_PCI_PMON_CTL_Q_OCC_RST) +/* IVT PCU */ +#define IVT_PCU_MSR_PMON_RAW_EVENT_MASK \ + (SNBEP_PMON_CTL_EV_SEL_MASK | \ + SNBEP_PMON_CTL_EV_SEL_EXT | \ + SNBEP_PCU_MSR_PMON_CTL_OCC_SEL_MASK | \ + SNBEP_PMON_CTL_EDGE_DET | \ + SNBEP_PCU_MSR_PMON_CTL_TRESH_MASK | \ + SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT | \ + SNBEP_PCU_MSR_PMON_CTL_OCC_EDGE_DET) +/* IVT QPI */ +#define IVT_QPI_PCI_PMON_RAW_EVENT_MASK \ + (IVT_PMON_RAW_EVENT_MASK | \ + SNBEP_PMON_CTL_EV_SEL_EXT) + /* NHM-EX event control */ #define NHMEX_PMON_CTL_EV_SEL_MASK 0x000000ff #define NHMEX_PMON_CTL_UMASK_MASK 0x0000ff00 diff --git a/arch/x86/kernel/cpu/perf_event_knc.c b/arch/x86/kernel/cpu/perf_event_knc.c index 4b7731b..838fa87 100644 --- a/arch/x86/kernel/cpu/perf_event_knc.c +++ b/arch/x86/kernel/cpu/perf_event_knc.c @@ -17,7 +17,7 @@ static const u64 knc_perfmon_event_map[] = [PERF_COUNT_HW_BRANCH_MISSES] = 0x002b, }; -static __initconst u64 knc_hw_cache_event_ids +static const u64 __initconst knc_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = @@ -284,7 +284,7 @@ static struct attribute *intel_knc_formats_attr[] = { NULL, }; -static __initconst struct x86_pmu knc_pmu = { +static const struct x86_pmu knc_pmu __initconst = { .name = "knc", .handle_irq = knc_pmu_handle_irq, .disable_all = knc_pmu_disable_all, diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c index 92c7e39..3486e66 100644 --- a/arch/x86/kernel/cpu/perf_event_p4.c +++ b/arch/x86/kernel/cpu/perf_event_p4.c @@ -895,8 +895,8 @@ static void p4_pmu_disable_pebs(void) * So at moment let leave metrics turned on forever -- it's * ok for now but need to be revisited! * - * (void)wrmsrl_safe(MSR_IA32_PEBS_ENABLE, (u64)0); - * (void)wrmsrl_safe(MSR_P4_PEBS_MATRIX_VERT, (u64)0); + * (void)wrmsrl_safe(MSR_IA32_PEBS_ENABLE, 0); + * (void)wrmsrl_safe(MSR_P4_PEBS_MATRIX_VERT, 0); */ } @@ -910,8 +910,7 @@ static inline void p4_pmu_disable_event(struct perf_event *event) * asserted again and again */ (void)wrmsrl_safe(hwc->config_base, - (u64)(p4_config_unpack_cccr(hwc->config)) & - ~P4_CCCR_ENABLE & ~P4_CCCR_OVF & ~P4_CCCR_RESERVED); + p4_config_unpack_cccr(hwc->config) & ~P4_CCCR_ENABLE & ~P4_CCCR_OVF & ~P4_CCCR_RESERVED); } static void p4_pmu_disable_all(void) @@ -957,7 +956,7 @@ static void p4_pmu_enable_event(struct perf_event *event) u64 escr_addr, cccr; bind = &p4_event_bind_map[idx]; - escr_addr = (u64)bind->escr_msr[thread]; + escr_addr = bind->escr_msr[thread]; /* * - we dont support cascaded counters yet diff --git a/arch/x86/kernel/cpu/perf_event_p6.c b/arch/x86/kernel/cpu/perf_event_p6.c index 4820c23..b1e2fe1 100644 --- a/arch/x86/kernel/cpu/perf_event_p6.c +++ b/arch/x86/kernel/cpu/perf_event_p6.c @@ -19,7 +19,7 @@ static const u64 p6_perfmon_event_map[] = }; -static u64 p6_hw_cache_event_ids +static const u64 __initconst p6_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c index e280253..37a198b 100644 --- a/arch/x86/kernel/cpu/proc.c +++ b/arch/x86/kernel/cpu/proc.c @@ -34,9 +34,9 @@ static void show_cpuinfo_misc(struct seq_file *m, struct cpuinfo_x86 *c) "fpu_exception\t: %s\n" "cpuid level\t: %d\n" "wp\t\t: %s\n", - c->fdiv_bug ? "yes" : "no", - c->f00f_bug ? "yes" : "no", - c->coma_bug ? "yes" : "no", + static_cpu_has_bug(X86_BUG_FDIV) ? "yes" : "no", + static_cpu_has_bug(X86_BUG_F00F) ? "yes" : "no", + static_cpu_has_bug(X86_BUG_COMA) ? "yes" : "no", c->hard_math ? "yes" : "no", c->hard_math ? "yes" : "no", c->cpuid_level, diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c index ee8e9ab..d92b5da 100644 --- a/arch/x86/kernel/cpu/scattered.c +++ b/arch/x86/kernel/cpu/scattered.c @@ -39,8 +39,9 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c) { X86_FEATURE_APERFMPERF, CR_ECX, 0, 0x00000006, 0 }, { X86_FEATURE_EPB, CR_ECX, 3, 0x00000006, 0 }, { X86_FEATURE_XSAVEOPT, CR_EAX, 0, 0x0000000d, 1 }, - { X86_FEATURE_CPB, CR_EDX, 9, 0x80000007, 0 }, { X86_FEATURE_HW_PSTATE, CR_EDX, 7, 0x80000007, 0 }, + { X86_FEATURE_CPB, CR_EDX, 9, 0x80000007, 0 }, + { X86_FEATURE_PROC_FEEDBACK, CR_EDX,11, 0x80000007, 0 }, { X86_FEATURE_NPT, CR_EDX, 0, 0x8000000a, 0 }, { X86_FEATURE_LBRV, CR_EDX, 1, 0x8000000a, 0 }, { X86_FEATURE_SVML, CR_EDX, 2, 0x8000000a, 0 }, diff --git a/arch/x86/kernel/doublefault_32.c b/arch/x86/kernel/doublefault_32.c index 37250fe..155a13f 100644 --- a/arch/x86/kernel/doublefault_32.c +++ b/arch/x86/kernel/doublefault_32.c @@ -20,7 +20,7 @@ static void doublefault_fn(void) struct desc_ptr gdt_desc = {0, 0}; unsigned long gdt, tss; - store_gdt(&gdt_desc); + native_store_gdt(&gdt_desc); gdt = gdt_desc.address; printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size); diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index c8797d5..deb6421 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -176,26 +176,20 @@ void show_trace(struct task_struct *task, struct pt_regs *regs, void show_stack(struct task_struct *task, unsigned long *sp) { - show_stack_log_lvl(task, NULL, sp, 0, ""); -} - -/* - * The architecture-independent dump_stack generator - */ -void dump_stack(void) -{ - unsigned long bp; + unsigned long bp = 0; unsigned long stack; - bp = stack_frame(current, NULL); - printk("Pid: %d, comm: %.20s %s %s %.*s\n", - current->pid, current->comm, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); - show_trace(NULL, NULL, &stack, bp); + /* + * Stack frames below this one aren't interesting. Don't show them + * if we're printing for %current. + */ + if (!sp && (!task || task == current)) { + sp = &stack; + bp = stack_frame(current, NULL); + } + + show_stack_log_lvl(task, NULL, sp, bp, ""); } -EXPORT_SYMBOL(dump_stack); static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED; static int die_owner = -1; diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c index 1038a41..f2a1770 100644 --- a/arch/x86/kernel/dumpstack_32.c +++ b/arch/x86/kernel/dumpstack_32.c @@ -86,11 +86,9 @@ void show_regs(struct pt_regs *regs) { int i; + show_regs_print_info(KERN_EMERG); __show_regs(regs, !user_mode_vm(regs)); - pr_emerg("Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)\n", - TASK_COMM_LEN, current->comm, task_pid_nr(current), - current_thread_info(), current, task_thread_info(current)); /* * When in-kernel, we also print out the stack and code at the * time of the fault.. diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c index b653675..addb207 100644 --- a/arch/x86/kernel/dumpstack_64.c +++ b/arch/x86/kernel/dumpstack_64.c @@ -249,14 +249,10 @@ void show_regs(struct pt_regs *regs) { int i; unsigned long sp; - const int cpu = smp_processor_id(); - struct task_struct *cur = current; sp = regs->sp; - printk("CPU %d ", cpu); + show_regs_print_info(KERN_DEFAULT); __show_regs(regs, 1); - printk(KERN_DEFAULT "Process %s (pid: %d, threadinfo %p, task %p)\n", - cur->comm, cur->pid, task_thread_info(cur), cur); /* * When in-kernel, we also print out the stack and code at the diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c index 9b9f18b..d15f575 100644 --- a/arch/x86/kernel/early_printk.c +++ b/arch/x86/kernel/early_printk.c @@ -169,25 +169,9 @@ static struct console early_serial_console = { .index = -1, }; -/* Direct interface for emergencies */ -static struct console *early_console = &early_vga_console; -static int __initdata early_console_initialized; - -asmlinkage void early_printk(const char *fmt, ...) -{ - char buf[512]; - int n; - va_list ap; - - va_start(ap, fmt); - n = vscnprintf(buf, sizeof(buf), fmt, ap); - early_console->write(early_console, buf, n); - va_end(ap); -} - static inline void early_console_register(struct console *con, int keep_early) { - if (early_console->index != -1) { + if (con->index != -1) { printk(KERN_CRIT "ERROR: earlyprintk= %s already used\n", con->name); return; @@ -207,9 +191,8 @@ static int __init setup_early_printk(char *buf) if (!buf) return 0; - if (early_console_initialized) + if (early_console) return 0; - early_console_initialized = 1; keep = (strstr(buf, "keep") != NULL); diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index c5e403f..101ac1a9 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -144,10 +144,10 @@ void __init x86_64_start_kernel(char * real_mode_data) * Build-time sanity checks on the kernel image and module * area mappings. (these are purely build-time and produce no code) */ - BUILD_BUG_ON(MODULES_VADDR < KERNEL_IMAGE_START); - BUILD_BUG_ON(MODULES_VADDR-KERNEL_IMAGE_START < KERNEL_IMAGE_SIZE); + BUILD_BUG_ON(MODULES_VADDR < __START_KERNEL_map); + BUILD_BUG_ON(MODULES_VADDR - __START_KERNEL_map < KERNEL_IMAGE_SIZE); BUILD_BUG_ON(MODULES_LEN + KERNEL_IMAGE_SIZE > 2*PUD_SIZE); - BUILD_BUG_ON((KERNEL_IMAGE_START & ~PMD_MASK) != 0); + BUILD_BUG_ON((__START_KERNEL_map & ~PMD_MASK) != 0); BUILD_BUG_ON((MODULES_VADDR & ~PMD_MASK) != 0); BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL)); BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) == diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c index 7bfe318..9895a9a 100644 --- a/arch/x86/kernel/kprobes/core.c +++ b/arch/x86/kernel/kprobes/core.c @@ -353,7 +353,11 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src) * have given. */ newdisp = (u8 *) src + (s64) insn.displacement.value - (u8 *) dest; - BUG_ON((s64) (s32) newdisp != newdisp); /* Sanity check. */ + if ((s64) (s32) newdisp != newdisp) { + pr_err("Kprobes error: new displacement does not fit into s32 (%llx)\n", newdisp); + pr_err("\tSrc: %p, Dest: %p, old disp: %x\n", src, dest, insn.displacement.value); + return 0; + } disp = (u8 *) dest + insn_offset_displacement(&insn); *(s32 *) disp = (s32) newdisp; } diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index b686a90..cd6d9a5 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -20,6 +20,7 @@ * Authors: Anthony Liguori <aliguori@us.ibm.com> */ +#include <linux/context_tracking.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/kvm_para.h> @@ -43,7 +44,6 @@ #include <asm/apicdef.h> #include <asm/hypervisor.h> #include <asm/kvm_guest.h> -#include <asm/context_tracking.h> static int kvmapf = 1; @@ -254,16 +254,18 @@ EXPORT_SYMBOL_GPL(kvm_read_and_reset_pf_reason); dotraplinkage void __kprobes do_async_page_fault(struct pt_regs *regs, unsigned long error_code) { + enum ctx_state prev_state; + switch (kvm_read_and_reset_pf_reason()) { default: do_page_fault(regs, error_code); break; case KVM_PV_REASON_PAGE_NOT_PRESENT: /* page is swapped out by the host. */ - exception_enter(regs); + prev_state = exception_enter(); exit_idle(); kvm_async_pf_task_wait((u32)read_cr2()); - exception_exit(regs); + exception_exit(prev_state); break; case KVM_PV_REASON_PAGE_READY: rcu_irq_enter(); diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 8bfb335..cd6de64 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -360,7 +360,6 @@ struct pv_cpu_ops pv_cpu_ops = { .set_ldt = native_set_ldt, .load_gdt = native_load_gdt, .load_idt = native_load_idt, - .store_gdt = native_store_gdt, .store_idt = native_store_idt, .store_tr = native_store_tr, .load_tls = native_load_tls, diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 14ae100..607af0d 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -121,30 +121,6 @@ void exit_thread(void) drop_fpu(me); } -void show_regs_common(void) -{ - const char *vendor, *product, *board; - - vendor = dmi_get_system_info(DMI_SYS_VENDOR); - if (!vendor) - vendor = ""; - product = dmi_get_system_info(DMI_PRODUCT_NAME); - if (!product) - product = ""; - - /* Board Name is optional */ - board = dmi_get_system_info(DMI_BOARD_NAME); - - printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s %s %s%s%s\n", - current->pid, current->comm, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version, - vendor, product, - board ? "/" : "", - board ? board : ""); -} - void flush_thread(void) { struct task_struct *tsk = current; @@ -301,13 +277,7 @@ void exit_idle(void) } #endif -/* - * 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) +void arch_cpu_idle_prepare(void) { /* * If we're the non-boot CPU, nothing set the stack canary up @@ -317,71 +287,40 @@ void cpu_idle(void) * canaries already on the stack wont ever trigger). */ boot_init_stack_canary(); - current_thread_info()->status |= TS_POLLING; - - while (1) { - tick_nohz_idle_enter(); - - while (!need_resched()) { - rmb(); - - if (cpu_is_offline(smp_processor_id())) - play_dead(); - - /* - * Idle routines should keep interrupts disabled - * from here on, until they go to idle. - * Otherwise, idle callbacks can misfire. - */ - local_touch_nmi(); - local_irq_disable(); - - enter_idle(); - - /* Don't trace irqs off for idle */ - stop_critical_timings(); - - /* enter_idle() needs rcu for notifiers */ - rcu_idle_enter(); +} - if (cpuidle_idle_call()) - x86_idle(); +void arch_cpu_idle_enter(void) +{ + local_touch_nmi(); + enter_idle(); +} - rcu_idle_exit(); - start_critical_timings(); +void arch_cpu_idle_exit(void) +{ + __exit_idle(); +} - /* In many cases the interrupt that ended idle - has already called exit_idle. But some idle - loops can be woken up without interrupt. */ - __exit_idle(); - } +void arch_cpu_idle_dead(void) +{ + play_dead(); +} - tick_nohz_idle_exit(); - preempt_enable_no_resched(); - schedule(); - preempt_disable(); - } +/* + * Called from the generic idle code. + */ +void arch_cpu_idle(void) +{ + if (cpuidle_idle_call()) + x86_idle(); } /* - * We use this if we don't have any better - * idle routine.. + * We use this if we don't have any better idle routine.. */ void default_idle(void) { trace_cpu_idle_rcuidle(1, smp_processor_id()); - current_thread_info()->status &= ~TS_POLLING; - /* - * TS_POLLING-cleared state must be visible before we - * test NEED_RESCHED: - */ - smp_mb(); - - if (!need_resched()) - safe_halt(); /* enables interrupts racelessly */ - else - local_irq_enable(); - current_thread_info()->status |= TS_POLLING; + safe_halt(); trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, smp_processor_id()); } #ifdef CONFIG_APM_MODULE @@ -411,20 +350,6 @@ void stop_this_cpu(void *dummy) halt(); } -/* - * On SMP it's slightly faster (but much more power-consuming!) - * to poll the ->work.need_resched flag instead of waiting for the - * cross-CPU IPI to arrive. Use this option with caution. - */ -static void poll_idle(void) -{ - trace_cpu_idle_rcuidle(0, smp_processor_id()); - local_irq_enable(); - while (!need_resched()) - cpu_relax(); - trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, smp_processor_id()); -} - bool amd_e400_c1e_detected; EXPORT_SYMBOL(amd_e400_c1e_detected); @@ -489,13 +414,13 @@ static void amd_e400_idle(void) void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c) { #ifdef CONFIG_SMP - if (x86_idle == poll_idle && smp_num_siblings > 1) + if (boot_option_idle_override == IDLE_POLL && smp_num_siblings > 1) pr_warn_once("WARNING: polling idle and HT enabled, performance may degrade\n"); #endif - if (x86_idle) + if (x86_idle || boot_option_idle_override == IDLE_POLL) return; - if (cpu_has_amd_erratum(amd_erratum_400)) { + if (cpu_has_bug(c, X86_BUG_AMD_APIC_C1E)) { /* E400: APIC timer interrupt does not wake up CPU from C1e */ pr_info("using AMD E400 aware idle routine\n"); x86_idle = amd_e400_idle; @@ -517,8 +442,8 @@ static int __init idle_setup(char *str) if (!strcmp(str, "poll")) { pr_info("using polling idle threads\n"); - x86_idle = poll_idle; boot_option_idle_override = IDLE_POLL; + cpu_idle_poll_ctrl(true); } else if (!strcmp(str, "halt")) { /* * When the boot option of idle=halt is added, halt is diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index b5a8905..7305f7d 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -84,8 +84,6 @@ void __show_regs(struct pt_regs *regs, int all) savesegment(gs, gs); } - show_regs_common(); - printk(KERN_DEFAULT "EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n", (u16)regs->cs, regs->ip, regs->flags, smp_processor_id()); diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 0f49677..355ae06 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -62,7 +62,6 @@ void __show_regs(struct pt_regs *regs, int all) unsigned int fsindex, gsindex; unsigned int ds, cs, es; - show_regs_common(); printk(KERN_DEFAULT "RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->ip); printk_address(regs->ip, 1); printk(KERN_DEFAULT "RSP: %04lx:%016lx EFLAGS: %08lx\n", regs->ss, diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c index 26ee48a..04ee1e2 100644 --- a/arch/x86/kernel/quirks.c +++ b/arch/x86/kernel/quirks.c @@ -354,18 +354,22 @@ static void ati_force_hpet_resume(void) static u32 ati_ixp4x0_rev(struct pci_dev *dev) { - u32 d; - u8 b; + int err = 0; + u32 d = 0; + u8 b = 0; - pci_read_config_byte(dev, 0xac, &b); + err = pci_read_config_byte(dev, 0xac, &b); b &= ~(1<<5); - pci_write_config_byte(dev, 0xac, b); - pci_read_config_dword(dev, 0x70, &d); + err |= pci_write_config_byte(dev, 0xac, b); + err |= pci_read_config_dword(dev, 0x70, &d); d |= 1<<8; - pci_write_config_dword(dev, 0x70, d); - pci_read_config_dword(dev, 0x8, &d); + err |= pci_write_config_dword(dev, 0x70, d); + err |= pci_read_config_dword(dev, 0x8, &d); d &= 0xff; dev_printk(KERN_DEBUG, &dev->dev, "SB4X0 revision 0x%x\n", d); + + WARN_ON_ONCE(err); + return d; } diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c index 2e8f3d3..198eb20 100644 --- a/arch/x86/kernel/rtc.c +++ b/arch/x86/kernel/rtc.c @@ -13,6 +13,7 @@ #include <asm/x86_init.h> #include <asm/time.h> #include <asm/mrst.h> +#include <asm/rtc.h> #ifdef CONFIG_X86_32 /* @@ -36,70 +37,24 @@ EXPORT_SYMBOL(rtc_lock); * nowtime is written into the registers of the CMOS clock, it will * jump to the next second precisely 500 ms later. Check the Motorola * MC146818A or Dallas DS12887 data sheet for details. - * - * BUG: This routine does not handle hour overflow properly; it just - * sets the minutes. Usually you'll only notice that after reboot! */ int mach_set_rtc_mmss(unsigned long nowtime) { - int real_seconds, real_minutes, cmos_minutes; - unsigned char save_control, save_freq_select; - unsigned long flags; + struct rtc_time tm; int retval = 0; - spin_lock_irqsave(&rtc_lock, flags); - - /* tell the clock it's being set */ - save_control = CMOS_READ(RTC_CONTROL); - CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL); - - /* stop and reset prescaler */ - save_freq_select = CMOS_READ(RTC_FREQ_SELECT); - CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT); - - cmos_minutes = CMOS_READ(RTC_MINUTES); - if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) - cmos_minutes = bcd2bin(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; - /* correct for half hour time zone */ - if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1) - real_minutes += 30; - real_minutes %= 60; - - if (abs(real_minutes - cmos_minutes) < 30) { - if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { - real_seconds = bin2bcd(real_seconds); - real_minutes = bin2bcd(real_minutes); - } - CMOS_WRITE(real_seconds, RTC_SECONDS); - CMOS_WRITE(real_minutes, RTC_MINUTES); + rtc_time_to_tm(nowtime, &tm); + if (!rtc_valid_tm(&tm)) { + retval = set_rtc_time(&tm); + if (retval) + printk(KERN_ERR "%s: RTC write failed with error %d\n", + __FUNCTION__, retval); } else { - printk_once(KERN_NOTICE - "set_rtc_mmss: can't update from %d to %d\n", - cmos_minutes, real_minutes); - retval = -1; + printk(KERN_ERR + "%s: Invalid RTC value: write of %lx to RTC failed\n", + __FUNCTION__, nowtime); + retval = -EINVAL; } - - /* The following flags have to be released exactly in this order, - * otherwise the DS12887 (popular MC146818A clone with integrated - * battery and quartz) will not reset the oscillator and will not - * update precisely 500 ms later. You won't find this mentioned in - * the Dallas Semiconductor data sheets, but who believes data - * sheets anyway ... -- Markus Kuhn - */ - CMOS_WRITE(save_control, RTC_CONTROL); - CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT); - - spin_unlock_irqrestore(&rtc_lock, flags); - return retval; } diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index fae9134..56f7fcf 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -82,7 +82,6 @@ #include <asm/timer.h> #include <asm/i8259.h> #include <asm/sections.h> -#include <asm/dmi.h> #include <asm/io_apic.h> #include <asm/ist.h> #include <asm/setup_arch.h> @@ -173,12 +172,10 @@ static struct resource bss_resource = { /* cpu data as detected by the assembly code in head.S */ struct cpuinfo_x86 new_cpu_data __cpuinitdata = { .wp_works_ok = -1, - .fdiv_bug = -1, }; /* common cpu data for all cpus */ struct cpuinfo_x86 boot_cpu_data __read_mostly = { .wp_works_ok = -1, - .fdiv_bug = -1, }; EXPORT_SYMBOL(boot_cpu_data); @@ -999,6 +996,7 @@ void __init setup_arch(char **cmdline_p) efi_init(); dmi_scan_machine(); + dmi_set_dump_stack_arch_desc(); /* * VMware detection requires dmi to be available, so this diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 9f190a2..9c73b51 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -284,7 +284,7 @@ notrace static void __cpuinit start_secondary(void *unused) x86_cpuinit.setup_percpu_clockev(); wmb(); - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } void __init smp_store_boot_cpu_info(void) diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c index 9d9d2f9..f7fec09 100644 --- a/arch/x86/kernel/tls.c +++ b/arch/x86/kernel/tls.c @@ -3,13 +3,13 @@ #include <linux/sched.h> #include <linux/user.h> #include <linux/regset.h> +#include <linux/syscalls.h> #include <asm/uaccess.h> #include <asm/desc.h> #include <asm/ldt.h> #include <asm/processor.h> #include <asm/proto.h> -#include <asm/syscalls.h> #include "tls.h" @@ -89,11 +89,9 @@ int do_set_thread_area(struct task_struct *p, int idx, return 0; } -asmlinkage int sys_set_thread_area(struct user_desc __user *u_info) +SYSCALL_DEFINE1(set_thread_area, struct user_desc __user *, u_info) { - int ret = do_set_thread_area(current, -1, u_info, 1); - asmlinkage_protect(1, ret, u_info); - return ret; + return do_set_thread_area(current, -1, u_info, 1); } @@ -139,11 +137,9 @@ int do_get_thread_area(struct task_struct *p, int idx, return 0; } -asmlinkage int sys_get_thread_area(struct user_desc __user *u_info) +SYSCALL_DEFINE1(get_thread_area, struct user_desc __user *, u_info) { - int ret = do_get_thread_area(current, -1, u_info); - asmlinkage_protect(1, ret, u_info); - return ret; + return do_get_thread_area(current, -1, u_info); } int regset_tls_active(struct task_struct *target, diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 68bda7a..772e2a8 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -12,6 +12,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include <linux/context_tracking.h> #include <linux/interrupt.h> #include <linux/kallsyms.h> #include <linux/spinlock.h> @@ -55,8 +56,7 @@ #include <asm/i387.h> #include <asm/fpu-internal.h> #include <asm/mce.h> -#include <asm/context_tracking.h> - +#include <asm/fixmap.h> #include <asm/mach_traps.h> #ifdef CONFIG_X86_64 @@ -176,34 +176,38 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs, #define DO_ERROR(trapnr, signr, str, name) \ dotraplinkage void do_##name(struct pt_regs *regs, long error_code) \ { \ - exception_enter(regs); \ + enum ctx_state prev_state; \ + \ + prev_state = exception_enter(); \ if (notify_die(DIE_TRAP, str, regs, error_code, \ trapnr, signr) == NOTIFY_STOP) { \ - exception_exit(regs); \ + exception_exit(prev_state); \ return; \ } \ conditional_sti(regs); \ do_trap(trapnr, signr, str, regs, error_code, NULL); \ - exception_exit(regs); \ + exception_exit(prev_state); \ } #define DO_ERROR_INFO(trapnr, signr, str, name, sicode, siaddr) \ dotraplinkage void do_##name(struct pt_regs *regs, long error_code) \ { \ siginfo_t info; \ + enum ctx_state prev_state; \ + \ info.si_signo = signr; \ info.si_errno = 0; \ info.si_code = sicode; \ info.si_addr = (void __user *)siaddr; \ - exception_enter(regs); \ + prev_state = exception_enter(); \ if (notify_die(DIE_TRAP, str, regs, error_code, \ trapnr, signr) == NOTIFY_STOP) { \ - exception_exit(regs); \ + exception_exit(prev_state); \ return; \ } \ conditional_sti(regs); \ do_trap(trapnr, signr, str, regs, error_code, &info); \ - exception_exit(regs); \ + exception_exit(prev_state); \ } DO_ERROR_INFO(X86_TRAP_DE, SIGFPE, "divide error", divide_error, FPE_INTDIV, @@ -226,14 +230,16 @@ DO_ERROR_INFO(X86_TRAP_AC, SIGBUS, "alignment check", alignment_check, /* Runs on IST stack */ dotraplinkage void do_stack_segment(struct pt_regs *regs, long error_code) { - exception_enter(regs); + enum ctx_state prev_state; + + prev_state = exception_enter(); if (notify_die(DIE_TRAP, "stack segment", regs, error_code, X86_TRAP_SS, SIGBUS) != NOTIFY_STOP) { preempt_conditional_sti(regs); do_trap(X86_TRAP_SS, SIGBUS, "stack segment", regs, error_code, NULL); preempt_conditional_cli(regs); } - exception_exit(regs); + exception_exit(prev_state); } dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code) @@ -241,7 +247,7 @@ dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code) static const char str[] = "double fault"; struct task_struct *tsk = current; - exception_enter(regs); + exception_enter(); /* Return not checked because double check cannot be ignored */ notify_die(DIE_TRAP, str, regs, error_code, X86_TRAP_DF, SIGSEGV); @@ -261,8 +267,9 @@ dotraplinkage void __kprobes do_general_protection(struct pt_regs *regs, long error_code) { struct task_struct *tsk; + enum ctx_state prev_state; - exception_enter(regs); + prev_state = exception_enter(); conditional_sti(regs); #ifdef CONFIG_X86_32 @@ -300,12 +307,14 @@ do_general_protection(struct pt_regs *regs, long error_code) force_sig(SIGSEGV, tsk); exit: - exception_exit(regs); + exception_exit(prev_state); } /* May run on IST stack. */ dotraplinkage void __kprobes notrace do_int3(struct pt_regs *regs, long error_code) { + enum ctx_state prev_state; + #ifdef CONFIG_DYNAMIC_FTRACE /* * ftrace must be first, everything else may cause a recursive crash. @@ -315,7 +324,7 @@ dotraplinkage void __kprobes notrace do_int3(struct pt_regs *regs, long error_co ftrace_int3_handler(regs)) return; #endif - exception_enter(regs); + prev_state = exception_enter(); #ifdef CONFIG_KGDB_LOW_LEVEL_TRAP if (kgdb_ll_trap(DIE_INT3, "int3", regs, error_code, X86_TRAP_BP, SIGTRAP) == NOTIFY_STOP) @@ -336,7 +345,7 @@ dotraplinkage void __kprobes notrace do_int3(struct pt_regs *regs, long error_co preempt_conditional_cli(regs); debug_stack_usage_dec(); exit: - exception_exit(regs); + exception_exit(prev_state); } #ifdef CONFIG_X86_64 @@ -393,11 +402,12 @@ asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *eregs) dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code) { struct task_struct *tsk = current; + enum ctx_state prev_state; int user_icebp = 0; unsigned long dr6; int si_code; - exception_enter(regs); + prev_state = exception_enter(); get_debugreg(dr6, 6); @@ -467,7 +477,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code) debug_stack_usage_dec(); exit: - exception_exit(regs); + exception_exit(prev_state); } /* @@ -561,17 +571,21 @@ void math_error(struct pt_regs *regs, int error_code, int trapnr) dotraplinkage void do_coprocessor_error(struct pt_regs *regs, long error_code) { - exception_enter(regs); + enum ctx_state prev_state; + + prev_state = exception_enter(); math_error(regs, error_code, X86_TRAP_MF); - exception_exit(regs); + exception_exit(prev_state); } dotraplinkage void do_simd_coprocessor_error(struct pt_regs *regs, long error_code) { - exception_enter(regs); + enum ctx_state prev_state; + + prev_state = exception_enter(); math_error(regs, error_code, X86_TRAP_XF); - exception_exit(regs); + exception_exit(prev_state); } dotraplinkage void @@ -639,7 +653,9 @@ EXPORT_SYMBOL_GPL(math_state_restore); dotraplinkage void __kprobes do_device_not_available(struct pt_regs *regs, long error_code) { - exception_enter(regs); + enum ctx_state prev_state; + + prev_state = exception_enter(); BUG_ON(use_eager_fpu()); #ifdef CONFIG_MATH_EMULATION @@ -650,7 +666,7 @@ do_device_not_available(struct pt_regs *regs, long error_code) info.regs = regs; math_emulate(&info); - exception_exit(regs); + exception_exit(prev_state); return; } #endif @@ -658,15 +674,16 @@ do_device_not_available(struct pt_regs *regs, long error_code) #ifdef CONFIG_X86_32 conditional_sti(regs); #endif - exception_exit(regs); + exception_exit(prev_state); } #ifdef CONFIG_X86_32 dotraplinkage void do_iret_error(struct pt_regs *regs, long error_code) { siginfo_t info; + enum ctx_state prev_state; - exception_enter(regs); + prev_state = exception_enter(); local_irq_enable(); info.si_signo = SIGILL; @@ -678,7 +695,7 @@ dotraplinkage void do_iret_error(struct pt_regs *regs, long error_code) do_trap(X86_TRAP_IRET, SIGILL, "iret exception", regs, error_code, &info); } - exception_exit(regs); + exception_exit(prev_state); } #endif @@ -753,6 +770,14 @@ void __init trap_init(void) #endif /* + * Set the IDT descriptor to a fixed read-only location, so that the + * "sidt" instruction will not leak the location of the kernel, and + * to defend the IDT against arbitrary memory write vulnerabilities. + * It will be reloaded in cpu_init() */ + __set_fixmap(FIX_RO_IDT, __pa_symbol(idt_table), PAGE_KERNEL_RO); + idt_descr.address = fix_to_virt(FIX_RO_IDT); + + /* * Should be a barrier for any external CPU state: */ cpu_init(); diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 4b9ea10..098b3cf 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -768,7 +768,8 @@ static cycle_t read_tsc(struct clocksource *cs) static void resume_tsc(struct clocksource *cs) { - clocksource_tsc.cycle_last = 0; + if (!boot_cpu_has(X86_FEATURE_NONSTOP_TSC_S3)) + clocksource_tsc.cycle_last = 0; } static struct clocksource clocksource_tsc = { @@ -939,6 +940,9 @@ static int __init init_tsc_clocksource(void) clocksource_tsc.flags &= ~CLOCK_SOURCE_IS_CONTINUOUS; } + if (boot_cpu_has(X86_FEATURE_NONSTOP_TSC_S3)) + clocksource_tsc.flags |= CLOCK_SOURCE_SUSPEND_NONSTOP; + /* * Trust the results of the earlier calibration on systems * exporting a reliable TSC. diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c index 0ba4cfb..2ed8459 100644 --- a/arch/x86/kernel/uprobes.c +++ b/arch/x86/kernel/uprobes.c @@ -697,3 +697,32 @@ bool arch_uprobe_skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs) send_sig(SIGTRAP, current, 0); return ret; } + +unsigned long +arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs *regs) +{ + int rasize, ncopied; + unsigned long orig_ret_vaddr = 0; /* clear high bits for 32-bit apps */ + + rasize = is_ia32_task() ? 4 : 8; + ncopied = copy_from_user(&orig_ret_vaddr, (void __user *)regs->sp, rasize); + if (unlikely(ncopied)) + return -1; + + /* check whether address has been already hijacked */ + if (orig_ret_vaddr == trampoline_vaddr) + return orig_ret_vaddr; + + ncopied = copy_to_user((void __user *)regs->sp, &trampoline_vaddr, rasize); + if (likely(!ncopied)) + return orig_ret_vaddr; + + if (ncopied != rasize) { + pr_err("uprobe: return address clobbered: pid=%d, %%sp=%#lx, " + "%%ip=%#lx\n", current->pid, regs->sp, regs->ip); + + force_sig_info(SIGSEGV, SEND_SIG_FORCED, current); + } + + return -1; +} diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 22a1530..10c4f30 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -94,10 +94,6 @@ SECTIONS _text = .; /* bootstrapping code */ HEAD_TEXT -#ifdef CONFIG_X86_32 - . = ALIGN(PAGE_SIZE); - *(.text..page_aligned) -#endif . = ALIGN(8); _stext = .; TEXT_TEXT diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index e1b1ce2..7d39d70 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -555,7 +555,7 @@ static void svm_init_erratum_383(void) int err; u64 val; - if (!cpu_has_amd_erratum(amd_erratum_383)) + if (!static_cpu_has_bug(X86_BUG_AMD_TLB_MMATCH)) return; /* Use _safe variants to not break nested virtualization */ diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 6667042..867b810 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2459,7 +2459,7 @@ static int hardware_enable(void *garbage) ept_sync_global(); } - store_gdt(&__get_cpu_var(host_gdt)); + native_store_gdt(&__get_cpu_var(host_gdt)); return 0; } diff --git a/arch/x86/lguest/Kconfig b/arch/x86/lguest/Kconfig index 29043d2..4a0890f8 100644 --- a/arch/x86/lguest/Kconfig +++ b/arch/x86/lguest/Kconfig @@ -1,7 +1,6 @@ config LGUEST_GUEST bool "Lguest guest support" - select PARAVIRT - depends on X86_32 + depends on X86_32 && PARAVIRT select TTY select VIRTUALIZATION select VIRTIO diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S index 2af5df3..e78b8ee 100644 --- a/arch/x86/lib/checksum_32.S +++ b/arch/x86/lib/checksum_32.S @@ -61,7 +61,7 @@ ENTRY(csum_partial) testl $3, %esi # Check alignment. jz 2f # Jump if alignment is ok. testl $1, %esi # Check alignment. - jz 10f # Jump if alignment is boundary of 2bytes. + jz 10f # Jump if alignment is boundary of 2 bytes. # buf is odd dec %ecx diff --git a/arch/x86/lib/memcpy_32.c b/arch/x86/lib/memcpy_32.c index b908a59..e78761d 100644 --- a/arch/x86/lib/memcpy_32.c +++ b/arch/x86/lib/memcpy_32.c @@ -26,7 +26,7 @@ void *memmove(void *dest, const void *src, size_t n) char *ret = dest; __asm__ __volatile__( - /* Handle more 16bytes in loop */ + /* Handle more 16 bytes in loop */ "cmp $0x10, %0\n\t" "jb 1f\n\t" @@ -51,7 +51,7 @@ void *memmove(void *dest, const void *src, size_t n) "sub $0x10, %0\n\t" /* - * We gobble 16byts forward in each loop. + * We gobble 16 bytes forward in each loop. */ "3:\n\t" "sub $0x10, %0\n\t" @@ -117,7 +117,7 @@ void *memmove(void *dest, const void *src, size_t n) "sub $0x10, %0\n\t" /* - * We gobble 16byts backward in each loop. + * We gobble 16 bytes backward in each loop. */ "7:\n\t" "sub $0x10, %0\n\t" diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S index 1c273be..56313a3 100644 --- a/arch/x86/lib/memcpy_64.S +++ b/arch/x86/lib/memcpy_64.S @@ -98,7 +98,7 @@ ENTRY(memcpy) subq $0x20, %rdx /* * At most 3 ALU operations in one cycle, - * so append NOPS in the same 16bytes trunk. + * so append NOPS in the same 16 bytes trunk. */ .p2align 4 .Lcopy_backward_loop: diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S index ee16461..65268a6 100644 --- a/arch/x86/lib/memmove_64.S +++ b/arch/x86/lib/memmove_64.S @@ -27,7 +27,7 @@ ENTRY(memmove) CFI_STARTPROC - /* Handle more 32bytes in loop */ + /* Handle more 32 bytes in loop */ mov %rdi, %rax cmp $0x20, %rdx jb 1f @@ -56,7 +56,7 @@ ENTRY(memmove) 3: sub $0x20, %rdx /* - * We gobble 32byts forward in each loop. + * We gobble 32 bytes forward in each loop. */ 5: sub $0x20, %rdx @@ -122,7 +122,7 @@ ENTRY(memmove) addq %rdx, %rdi subq $0x20, %rdx /* - * We gobble 32byts backward in each loop. + * We gobble 32 bytes backward in each loop. */ 8: subq $0x20, %rdx diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c index f0312d7..3eb18ac 100644 --- a/arch/x86/lib/usercopy_32.c +++ b/arch/x86/lib/usercopy_32.c @@ -689,9 +689,3 @@ _copy_from_user(void *to, const void __user *from, unsigned long n) return n; } EXPORT_SYMBOL(_copy_from_user); - -void copy_from_user_overflow(void) -{ - WARN(1, "Buffer overflow detected!\n"); -} -EXPORT_SYMBOL(copy_from_user_overflow); diff --git a/arch/x86/mm/amdtopology.c b/arch/x86/mm/amdtopology.c index 5247d01..2ca15b59 100644 --- a/arch/x86/mm/amdtopology.c +++ b/arch/x86/mm/amdtopology.c @@ -130,9 +130,8 @@ int __init amd_numa_init(void) } limit >>= 16; - limit <<= 24; - limit |= (1<<24)-1; limit++; + limit <<= 24; if (limit > end) limit = end; diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 0e88336..654be4a 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -13,12 +13,12 @@ #include <linux/perf_event.h> /* perf_sw_event */ #include <linux/hugetlb.h> /* hstate_index_to_shift */ #include <linux/prefetch.h> /* prefetchw */ +#include <linux/context_tracking.h> /* exception_enter(), ... */ #include <asm/traps.h> /* dotraplinkage, ... */ #include <asm/pgalloc.h> /* pgd_*(), ... */ #include <asm/kmemcheck.h> /* kmemcheck_*(), ... */ #include <asm/fixmap.h> /* VSYSCALL_START */ -#include <asm/context_tracking.h> /* exception_enter(), ... */ /* * Page fault error code bits: @@ -557,7 +557,7 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address) /* * Pentium F0 0F C7 C8 bug workaround: */ - if (boot_cpu_data.f00f_bug) { + if (boot_cpu_has_bug(X86_BUG_F00F)) { nr = (address - idt_descr.address) >> 3; if (nr == 6) { @@ -1224,7 +1224,9 @@ good_area: dotraplinkage void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code) { - exception_enter(regs); + enum ctx_state prev_state; + + prev_state = exception_enter(); __do_page_fault(regs, error_code); - exception_exit(regs); + exception_exit(prev_state); } diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c index 6f31ee5..252b8f5 100644 --- a/arch/x86/mm/highmem_32.c +++ b/arch/x86/mm/highmem_32.c @@ -137,5 +137,4 @@ void __init set_highmem_pages_init(void) add_highpages_with_active_regions(nid, zone_start_pfn, zone_end_pfn); } - totalram_pages += totalhigh_pages; } diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 59b7fc4..fdc5dca 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -515,11 +515,8 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end) printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10); for (; addr < end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE); - free_page(addr); - totalram_pages++; + free_reserved_page(virt_to_page(addr)); } #endif } diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 2d19001..3ac7e31 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -427,14 +427,6 @@ static void __init permanent_kmaps_init(pgd_t *pgd_base) pkmap_page_table = pte; } -static void __init add_one_highpage_init(struct page *page) -{ - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - totalhigh_pages++; -} - void __init add_highpages_with_active_regions(int nid, unsigned long start_pfn, unsigned long end_pfn) { @@ -448,7 +440,7 @@ void __init add_highpages_with_active_regions(int nid, start_pfn, end_pfn); for ( ; pfn < e_pfn; pfn++) if (pfn_valid(pfn)) - add_one_highpage_init(pfn_to_page(pfn)); + free_highmem_page(pfn_to_page(pfn)); } } #else diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 474e28f..caad9a0 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -1011,14 +1011,12 @@ remove_pagetable(unsigned long start, unsigned long end, bool direct) flush_tlb_all(); } -void __ref vmemmap_free(struct page *memmap, unsigned long nr_pages) +void __ref vmemmap_free(unsigned long start, unsigned long end) { - unsigned long start = (unsigned long)memmap; - unsigned long end = (unsigned long)(memmap + nr_pages); - remove_pagetable(start, end, false); } +#ifdef CONFIG_MEMORY_HOTREMOVE static void __meminit kernel_physical_mapping_remove(unsigned long start, unsigned long end) { @@ -1028,7 +1026,6 @@ kernel_physical_mapping_remove(unsigned long start, unsigned long end) remove_pagetable(start, end, true); } -#ifdef CONFIG_MEMORY_HOTREMOVE int __ref arch_remove_memory(u64 start, u64 size) { unsigned long start_pfn = start >> PAGE_SHIFT; @@ -1067,10 +1064,9 @@ void __init mem_init(void) /* clear_bss() already clear the empty_zero_page */ - reservedpages = 0; - - /* this will put all low memory onto the freelists */ register_page_bootmem_info(); + + /* this will put all memory onto the freelists */ totalram_pages = free_all_bootmem(); absent_pages = absent_pages_in_range(0, max_pfn); @@ -1285,18 +1281,17 @@ static long __meminitdata addr_start, addr_end; static void __meminitdata *p_start, *p_end; static int __meminitdata node_start; -int __meminit -vmemmap_populate(struct page *start_page, unsigned long size, int node) +static int __meminit vmemmap_populate_hugepages(unsigned long start, + unsigned long end, int node) { - unsigned long addr = (unsigned long)start_page; - unsigned long end = (unsigned long)(start_page + size); + unsigned long addr; unsigned long next; pgd_t *pgd; pud_t *pud; pmd_t *pmd; - for (; addr < end; addr = next) { - void *p = NULL; + for (addr = start; addr < end; addr = next) { + next = pmd_addr_end(addr, end); pgd = vmemmap_pgd_populate(addr, node); if (!pgd) @@ -1306,31 +1301,14 @@ vmemmap_populate(struct page *start_page, unsigned long size, int node) if (!pud) return -ENOMEM; - if (!cpu_has_pse) { - next = (addr + PAGE_SIZE) & PAGE_MASK; - pmd = vmemmap_pmd_populate(pud, addr, node); - - if (!pmd) - return -ENOMEM; - - p = vmemmap_pte_populate(pmd, addr, node); + pmd = pmd_offset(pud, addr); + if (pmd_none(*pmd)) { + void *p; - if (!p) - return -ENOMEM; - - addr_end = addr + PAGE_SIZE; - p_end = p + PAGE_SIZE; - } else { - next = pmd_addr_end(addr, end); - - pmd = pmd_offset(pud, addr); - if (pmd_none(*pmd)) { + p = vmemmap_alloc_block_buf(PMD_SIZE, node); + if (p) { pte_t entry; - p = vmemmap_alloc_block_buf(PMD_SIZE, node); - if (!p) - return -ENOMEM; - entry = pfn_pte(__pa(p) >> PAGE_SHIFT, PAGE_KERNEL_LARGE); set_pmd(pmd, __pmd(pte_val(entry))); @@ -1347,15 +1325,32 @@ vmemmap_populate(struct page *start_page, unsigned long size, int node) addr_end = addr + PMD_SIZE; p_end = p + PMD_SIZE; - } else - vmemmap_verify((pte_t *)pmd, node, addr, next); + continue; + } + } else if (pmd_large(*pmd)) { + vmemmap_verify((pte_t *)pmd, node, addr, next); + continue; } - + pr_warn_once("vmemmap: falling back to regular page backing\n"); + if (vmemmap_populate_basepages(addr, next, node)) + return -ENOMEM; } - sync_global_pgds((unsigned long)start_page, end - 1); return 0; } +int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node) +{ + int err; + + if (cpu_has_pse) + err = vmemmap_populate_hugepages(start, end, node); + else + err = vmemmap_populate_basepages(start, end, node); + if (!err) + sync_global_pgds(start, end - 1); + return err; +} + #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HAVE_BOOTMEM_INFO_NODE) void register_page_bootmem_memmap(unsigned long section_nr, struct page *start_page, unsigned long size) diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 78fe3f1..9a1e658 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -282,12 +282,7 @@ void iounmap(volatile void __iomem *addr) in parallel. Reuse of the virtual address is prevented by leaving it in the global lists until we're done with it. cpa takes care of the direct mappings. */ - read_lock(&vmlist_lock); - for (p = vmlist; p; p = p->next) { - if (p->addr == (void __force *)addr) - break; - } - read_unlock(&vmlist_lock); + p = find_vm_area((void __force *)addr); if (!p) { printk(KERN_ERR "iounmap: bad address %p\n", addr); diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index 72fe01e..a71c4e2 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -114,14 +114,11 @@ void numa_clear_node(int cpu) */ void __init setup_node_to_cpumask_map(void) { - unsigned int node, num = 0; + unsigned int node; /* setup nr_node_ids if not done yet */ - if (nr_node_ids == MAX_NUMNODES) { - for_each_node_mask(node, node_possible_map) - num = node; - nr_node_ids = num + 1; - } + if (nr_node_ids == MAX_NUMNODES) + setup_nr_node_ids(); /* allocate the map */ for (node = 0; node < nr_node_ids; node++) diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c index 0e38951..d0b1773 100644 --- a/arch/x86/mm/pageattr-test.c +++ b/arch/x86/mm/pageattr-test.c @@ -130,13 +130,12 @@ static int pageattr_test(void) } failed += print_split(&sa); - srandom32(100); for (i = 0; i < NTEST; i++) { - unsigned long pfn = random32() % max_pfn_mapped; + unsigned long pfn = prandom_u32() % max_pfn_mapped; addr[i] = (unsigned long)__va(pfn << PAGE_SHIFT); - len[i] = random32() % 100; + len[i] = prandom_u32() % 100; len[i] = min_t(unsigned long, len[i], max_pfn_mapped - pfn - 1); if (len[i] == 0) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index fb4e73e..bb32480 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -542,13 +542,14 @@ out_unlock: return do_split; } -int __split_large_page(pte_t *kpte, unsigned long address, pte_t *pbase) +static int +__split_large_page(pte_t *kpte, unsigned long address, struct page *base) { + pte_t *pbase = (pte_t *)page_address(base); unsigned long pfn, pfninc = 1; unsigned int i, level; pte_t *tmp; pgprot_t ref_prot; - struct page *base = virt_to_page(pbase); spin_lock(&pgd_lock); /* @@ -633,7 +634,6 @@ int __split_large_page(pte_t *kpte, unsigned long address, pte_t *pbase) static int split_large_page(pte_t *kpte, unsigned long address) { - pte_t *pbase; struct page *base; if (!debug_pagealloc) @@ -644,8 +644,7 @@ static int split_large_page(pte_t *kpte, unsigned long address) if (!base) return -ENOMEM; - pbase = (pte_t *)page_address(base); - if (__split_large_page(kpte, address, pbase)) + if (__split_large_page(kpte, address, base)) __free_page(base); return 0; diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 901177d..305c68b 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -6,6 +6,7 @@ #include <linux/sched.h> #include <linux/pci.h> +#include <linux/pci-acpi.h> #include <linux/ioport.h> #include <linux/init.h> #include <linux/dmi.h> @@ -170,6 +171,16 @@ void pcibios_fixup_bus(struct pci_bus *b) pcibios_fixup_device_resources(dev); } +void pcibios_add_bus(struct pci_bus *bus) +{ + acpi_pci_add_bus(bus); +} + +void pcibios_remove_bus(struct pci_bus *bus) +{ + acpi_pci_remove_bus(bus); +} + /* * Only use DMI information to set this if nothing was passed * on the kernel command line (which was parsed earlier). diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c index 94e7662..4a9be6d 100644 --- a/arch/x86/pci/xen.c +++ b/arch/x86/pci/xen.c @@ -177,7 +177,7 @@ static int xen_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) goto error; i = 0; list_for_each_entry(msidesc, &dev->msi_list, list) { - irq = xen_bind_pirq_msi_to_irq(dev, msidesc, v[i], 0, + irq = xen_bind_pirq_msi_to_irq(dev, msidesc, v[i], (type == PCI_CAP_ID_MSIX) ? "pcifront-msi-x" : "pcifront-msi", @@ -244,7 +244,7 @@ static int xen_hvm_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) dev_dbg(&dev->dev, "xen: msi already bound to pirq=%d\n", pirq); } - irq = xen_bind_pirq_msi_to_irq(dev, msidesc, pirq, 0, + irq = xen_bind_pirq_msi_to_irq(dev, msidesc, pirq, (type == PCI_CAP_ID_MSIX) ? "msi-x" : "msi", DOMID_SELF); @@ -326,7 +326,7 @@ static int xen_initdom_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) } ret = xen_bind_pirq_msi_to_irq(dev, msidesc, - map_irq.pirq, map_irq.index, + map_irq.pirq, (type == PCI_CAP_ID_MSIX) ? "msi-x" : "msi", domid); diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index e4a86a6..b55d174 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -49,6 +49,7 @@ #include <asm/cacheflush.h> #include <asm/tlbflush.h> #include <asm/x86_init.h> +#include <asm/rtc.h> #define EFI_DEBUG 1 @@ -352,10 +353,10 @@ static efi_status_t __init phys_efi_get_time(efi_time_t *tm, int efi_set_rtc_mmss(unsigned long nowtime) { - int real_seconds, real_minutes; efi_status_t status; efi_time_t eft; efi_time_cap_t cap; + struct rtc_time tm; status = efi.get_time(&eft, &cap); if (status != EFI_SUCCESS) { @@ -363,13 +364,20 @@ int efi_set_rtc_mmss(unsigned long nowtime) return -1; } - real_seconds = nowtime % 60; - real_minutes = nowtime / 60; - if (((abs(real_minutes - eft.minute) + 15)/30) & 1) - real_minutes += 30; - real_minutes %= 60; - eft.minute = real_minutes; - eft.second = real_seconds; + rtc_time_to_tm(nowtime, &tm); + if (!rtc_valid_tm(&tm)) { + eft.year = tm.tm_year + 1900; + eft.month = tm.tm_mon + 1; + eft.day = tm.tm_mday; + eft.minute = tm.tm_min; + eft.second = tm.tm_sec; + eft.nanosecond = 0; + } else { + printk(KERN_ERR + "%s: Invalid EFI RTC value: write of %lx to EFI RTC failed\n", + __FUNCTION__, nowtime); + return -1; + } status = efi.set_time(&eft); if (status != EFI_SUCCESS) { diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c index e31bcd8..a0a0a43 100644 --- a/arch/x86/platform/mrst/mrst.c +++ b/arch/x86/platform/mrst/mrst.c @@ -356,8 +356,7 @@ static int __init sfi_parse_gpio(struct sfi_table_header *table) num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry); pentry = (struct sfi_gpio_table_entry *)sb->pentry; - gpio_table = (struct sfi_gpio_table_entry *) - kmalloc(num * sizeof(*pentry), GFP_KERNEL); + gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL); if (!gpio_table) return -1; memcpy(gpio_table, pentry, num * sizeof(*pentry)); diff --git a/arch/x86/platform/mrst/vrtc.c b/arch/x86/platform/mrst/vrtc.c index 225bd0f..d62b0a3 100644 --- a/arch/x86/platform/mrst/vrtc.c +++ b/arch/x86/platform/mrst/vrtc.c @@ -85,27 +85,35 @@ unsigned long vrtc_get_time(void) return mktime(year, mon, mday, hour, min, sec); } -/* Only care about the minutes and seconds */ int vrtc_set_mmss(unsigned long nowtime) { - int real_sec, real_min; unsigned long flags; - int vrtc_min; - - spin_lock_irqsave(&rtc_lock, flags); - vrtc_min = vrtc_cmos_read(RTC_MINUTES); - - real_sec = nowtime % 60; - real_min = nowtime / 60; - if (((abs(real_min - vrtc_min) + 15)/30) & 1) - real_min += 30; - real_min %= 60; - - vrtc_cmos_write(real_sec, RTC_SECONDS); - vrtc_cmos_write(real_min, RTC_MINUTES); - spin_unlock_irqrestore(&rtc_lock, flags); - - return 0; + struct rtc_time tm; + int year; + int retval = 0; + + rtc_time_to_tm(nowtime, &tm); + if (!rtc_valid_tm(&tm) && tm.tm_year >= 72) { + /* + * tm.year is the number of years since 1900, and the + * vrtc need the years since 1972. + */ + year = tm.tm_year - 72; + spin_lock_irqsave(&rtc_lock, flags); + vrtc_cmos_write(year, RTC_YEAR); + vrtc_cmos_write(tm.tm_mon, RTC_MONTH); + vrtc_cmos_write(tm.tm_mday, RTC_DAY_OF_MONTH); + vrtc_cmos_write(tm.tm_hour, RTC_HOURS); + vrtc_cmos_write(tm.tm_min, RTC_MINUTES); + vrtc_cmos_write(tm.tm_sec, RTC_SECONDS); + spin_unlock_irqrestore(&rtc_lock, flags); + } else { + printk(KERN_ERR + "%s: Invalid vRTC value: write of %lx to vRTC failed\n", + __FUNCTION__, nowtime); + retval = -EINVAL; + } + return retval; } void __init mrst_rtc_init(void) diff --git a/arch/x86/platform/olpc/olpc-xo1-sci.c b/arch/x86/platform/olpc/olpc-xo1-sci.c index 74704be..9a2e590 100644 --- a/arch/x86/platform/olpc/olpc-xo1-sci.c +++ b/arch/x86/platform/olpc/olpc-xo1-sci.c @@ -460,7 +460,6 @@ static int setup_power_button(struct platform_device *pdev) static void free_power_button(void) { input_unregister_device(power_button_idev); - input_free_device(power_button_idev); } static int setup_ebook_switch(struct platform_device *pdev) @@ -491,7 +490,6 @@ static int setup_ebook_switch(struct platform_device *pdev) static void free_ebook_switch(void) { input_unregister_device(ebook_switch_idev); - input_free_device(ebook_switch_idev); } static int setup_lid_switch(struct platform_device *pdev) @@ -526,6 +524,7 @@ static int setup_lid_switch(struct platform_device *pdev) err_create_attr: input_unregister_device(lid_switch_idev); + lid_switch_idev = NULL; err_register: input_free_device(lid_switch_idev); return r; @@ -535,7 +534,6 @@ static void free_lid_switch(void) { device_remove_file(&lid_switch_idev->dev, &dev_attr_lid_wake_mode); input_unregister_device(lid_switch_idev); - input_free_device(lid_switch_idev); } static int xo1_sci_probe(struct platform_device *pdev) diff --git a/arch/x86/platform/uv/uv_time.c b/arch/x86/platform/uv/uv_time.c index 98718f6..5c86786 100644 --- a/arch/x86/platform/uv/uv_time.c +++ b/arch/x86/platform/uv/uv_time.c @@ -159,10 +159,9 @@ static __init int uv_rtc_allocate_timers(void) { int cpu; - blade_info = kmalloc(uv_possible_blades * sizeof(void *), GFP_KERNEL); + blade_info = kzalloc(uv_possible_blades * sizeof(void *), GFP_KERNEL); if (!blade_info) return -ENOMEM; - memset(blade_info, 0, uv_possible_blades * sizeof(void *)); for_each_present_cpu(cpu) { int nid = cpu_to_node(cpu); diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c index 3c68768..6d6e907 100644 --- a/arch/x86/power/cpu.c +++ b/arch/x86/power/cpu.c @@ -62,11 +62,9 @@ static void __save_processor_state(struct saved_context *ctxt) * descriptor tables */ #ifdef CONFIG_X86_32 - store_gdt(&ctxt->gdt); store_idt(&ctxt->idt); #else /* CONFIG_X86_64 */ - store_gdt((struct desc_ptr *)&ctxt->gdt_limit); store_idt((struct desc_ptr *)&ctxt->idt_limit); #endif store_tr(ctxt->tr); @@ -135,7 +133,10 @@ static void fix_processor_context(void) { int cpu = smp_processor_id(); struct tss_struct *t = &per_cpu(init_tss, cpu); - +#ifdef CONFIG_X86_64 + struct desc_struct *desc = get_cpu_gdt_table(cpu); + tss_desc tss; +#endif set_tss_desc(cpu, t); /* * This just modifies memory; should not be * necessary. But... This is necessary, because @@ -144,7 +145,9 @@ static void fix_processor_context(void) */ #ifdef CONFIG_X86_64 - get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9; + memcpy(&tss, &desc[GDT_ENTRY_TSS], sizeof(tss_desc)); + tss.type = 0x9; /* The available 64-bit TSS (see AMD vol 2, pg 91 */ + write_gdt_entry(desc, GDT_ENTRY_TSS, &tss, DESC_TSS); syscall_init(); /* This sets MSR_*STAR and related */ #endif @@ -183,11 +186,9 @@ static void __restore_processor_state(struct saved_context *ctxt) * ltr is done i fix_processor_context(). */ #ifdef CONFIG_X86_32 - load_gdt(&ctxt->gdt); load_idt(&ctxt->idt); #else /* CONFIG_X86_64 */ - load_gdt((const struct desc_ptr *)&ctxt->gdt_limit); load_idt((const struct desc_ptr *)&ctxt->idt_limit); #endif diff --git a/arch/x86/syscalls/syscall_32.tbl b/arch/x86/syscalls/syscall_32.tbl index e6d55f0..d0d59bf 100644 --- a/arch/x86/syscalls/syscall_32.tbl +++ b/arch/x86/syscalls/syscall_32.tbl @@ -43,7 +43,7 @@ 34 i386 nice sys_nice 35 i386 ftime 36 i386 sync sys_sync -37 i386 kill sys_kill sys32_kill +37 i386 kill sys_kill 38 i386 rename sys_rename 39 i386 mkdir sys_mkdir 40 i386 rmdir sys_rmdir @@ -123,7 +123,7 @@ 114 i386 wait4 sys_wait4 compat_sys_wait4 115 i386 swapoff sys_swapoff 116 i386 sysinfo sys_sysinfo compat_sys_sysinfo -117 i386 ipc sys_ipc sys32_ipc +117 i386 ipc sys_ipc compat_sys_ipc 118 i386 fsync sys_fsync 119 i386 sigreturn sys_sigreturn stub32_sigreturn 120 i386 clone sys_clone stub32_clone @@ -131,7 +131,7 @@ 122 i386 uname sys_newuname 123 i386 modify_ldt sys_modify_ldt 124 i386 adjtimex sys_adjtimex compat_sys_adjtimex -125 i386 mprotect sys_mprotect sys32_mprotect +125 i386 mprotect sys_mprotect 126 i386 sigprocmask sys_sigprocmask compat_sys_sigprocmask 127 i386 create_module 128 i386 init_module sys_init_module @@ -193,7 +193,7 @@ 184 i386 capget sys_capget 185 i386 capset sys_capset 186 i386 sigaltstack sys_sigaltstack compat_sys_sigaltstack -187 i386 sendfile sys_sendfile sys32_sendfile +187 i386 sendfile sys_sendfile compat_sys_sendfile 188 i386 getpmsg 189 i386 putpmsg 190 i386 vfork sys_vfork stub32_vfork @@ -259,7 +259,7 @@ 250 i386 fadvise64 sys_fadvise64 sys32_fadvise64 # 251 is available for reuse (was briefly sys_set_zone_reclaim) 252 i386 exit_group sys_exit_group -253 i386 lookup_dcookie sys_lookup_dcookie sys32_lookup_dcookie +253 i386 lookup_dcookie sys_lookup_dcookie compat_sys_lookup_dcookie 254 i386 epoll_create sys_epoll_create 255 i386 epoll_ctl sys_epoll_ctl 256 i386 epoll_wait sys_epoll_wait diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile index bae601f..e812034 100644 --- a/arch/x86/tools/Makefile +++ b/arch/x86/tools/Makefile @@ -39,4 +39,5 @@ $(obj)/insn_sanity.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/ina HOST_EXTRACFLAGS += -I$(srctree)/tools/include hostprogs-y += relocs +relocs-objs := relocs_32.o relocs_64.o relocs_common.o relocs: $(obj)/relocs diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c index 79d67bd..590be10 100644 --- a/arch/x86/tools/relocs.c +++ b/arch/x86/tools/relocs.c @@ -1,43 +1,36 @@ -#include <stdio.h> -#include <stdarg.h> -#include <stdlib.h> -#include <stdint.h> -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <elf.h> -#include <byteswap.h> -#define USE_BSD -#include <endian.h> -#include <regex.h> -#include <tools/le_byteshift.h> - -static void die(char *fmt, ...); - -#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) -static Elf32_Ehdr ehdr; -static unsigned long reloc_count, reloc_idx; -static unsigned long *relocs; -static unsigned long reloc16_count, reloc16_idx; -static unsigned long *relocs16; +/* This is included from relocs_32/64.c */ + +#define ElfW(type) _ElfW(ELF_BITS, type) +#define _ElfW(bits, type) __ElfW(bits, type) +#define __ElfW(bits, type) Elf##bits##_##type + +#define Elf_Addr ElfW(Addr) +#define Elf_Ehdr ElfW(Ehdr) +#define Elf_Phdr ElfW(Phdr) +#define Elf_Shdr ElfW(Shdr) +#define Elf_Sym ElfW(Sym) + +static Elf_Ehdr ehdr; + +struct relocs { + uint32_t *offset; + unsigned long count; + unsigned long size; +}; + +static struct relocs relocs16; +static struct relocs relocs32; +static struct relocs relocs64; struct section { - Elf32_Shdr shdr; + Elf_Shdr shdr; struct section *link; - Elf32_Sym *symtab; - Elf32_Rel *reltab; + Elf_Sym *symtab; + Elf_Rel *reltab; char *strtab; }; static struct section *secs; -enum symtype { - S_ABS, - S_REL, - S_SEG, - S_LIN, - S_NSYMTYPES -}; - static const char * const sym_regex_kernel[S_NSYMTYPES] = { /* * Following symbols have been audited. There values are constant and do @@ -49,6 +42,9 @@ static const char * const sym_regex_kernel[S_NSYMTYPES] = { "^(xen_irq_disable_direct_reloc$|" "xen_save_fl_direct_reloc$|" "VDSO|" +#if ELF_BITS == 64 + "__vvar_page|" +#endif "__crc_)", /* @@ -72,6 +68,11 @@ static const char * const sym_regex_kernel[S_NSYMTYPES] = { "__end_rodata|" "__initramfs_start|" "(jiffies|jiffies_64)|" +#if ELF_BITS == 64 + "__per_cpu_load|" + "init_per_cpu__.*|" + "__end_rodata_hpage_align|" +#endif "_end)$" }; @@ -132,15 +133,6 @@ static void regex_init(int use_real_mode) } } -static void die(char *fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - vfprintf(stderr, fmt, ap); - va_end(ap); - exit(1); -} - static const char *sym_type(unsigned type) { static const char *type_name[] = { @@ -198,6 +190,24 @@ static const char *rel_type(unsigned type) { static const char *type_name[] = { #define REL_TYPE(X) [X] = #X +#if ELF_BITS == 64 + REL_TYPE(R_X86_64_NONE), + REL_TYPE(R_X86_64_64), + REL_TYPE(R_X86_64_PC32), + REL_TYPE(R_X86_64_GOT32), + REL_TYPE(R_X86_64_PLT32), + REL_TYPE(R_X86_64_COPY), + REL_TYPE(R_X86_64_GLOB_DAT), + REL_TYPE(R_X86_64_JUMP_SLOT), + REL_TYPE(R_X86_64_RELATIVE), + REL_TYPE(R_X86_64_GOTPCREL), + REL_TYPE(R_X86_64_32), + REL_TYPE(R_X86_64_32S), + REL_TYPE(R_X86_64_16), + REL_TYPE(R_X86_64_PC16), + REL_TYPE(R_X86_64_8), + REL_TYPE(R_X86_64_PC8), +#else REL_TYPE(R_386_NONE), REL_TYPE(R_386_32), REL_TYPE(R_386_PC32), @@ -213,6 +223,7 @@ static const char *rel_type(unsigned type) REL_TYPE(R_386_PC8), REL_TYPE(R_386_16), REL_TYPE(R_386_PC16), +#endif #undef REL_TYPE }; const char *name = "unknown type rel type name"; @@ -240,7 +251,7 @@ static const char *sec_name(unsigned shndx) return name; } -static const char *sym_name(const char *sym_strtab, Elf32_Sym *sym) +static const char *sym_name(const char *sym_strtab, Elf_Sym *sym) { const char *name; name = "<noname>"; @@ -253,15 +264,42 @@ static const char *sym_name(const char *sym_strtab, Elf32_Sym *sym) return name; } +static Elf_Sym *sym_lookup(const char *symname) +{ + int i; + for (i = 0; i < ehdr.e_shnum; i++) { + struct section *sec = &secs[i]; + long nsyms; + char *strtab; + Elf_Sym *symtab; + Elf_Sym *sym; + + if (sec->shdr.sh_type != SHT_SYMTAB) + continue; + nsyms = sec->shdr.sh_size/sizeof(Elf_Sym); + symtab = sec->symtab; + strtab = sec->link->strtab; + + for (sym = symtab; --nsyms >= 0; sym++) { + if (!sym->st_name) + continue; + if (strcmp(symname, strtab + sym->st_name) == 0) + return sym; + } + } + return 0; +} #if BYTE_ORDER == LITTLE_ENDIAN #define le16_to_cpu(val) (val) #define le32_to_cpu(val) (val) +#define le64_to_cpu(val) (val) #endif #if BYTE_ORDER == BIG_ENDIAN #define le16_to_cpu(val) bswap_16(val) #define le32_to_cpu(val) bswap_32(val) +#define le64_to_cpu(val) bswap_64(val) #endif static uint16_t elf16_to_cpu(uint16_t val) @@ -274,6 +312,23 @@ static uint32_t elf32_to_cpu(uint32_t val) return le32_to_cpu(val); } +#define elf_half_to_cpu(x) elf16_to_cpu(x) +#define elf_word_to_cpu(x) elf32_to_cpu(x) + +#if ELF_BITS == 64 +static uint64_t elf64_to_cpu(uint64_t val) +{ + return le64_to_cpu(val); +} +#define elf_addr_to_cpu(x) elf64_to_cpu(x) +#define elf_off_to_cpu(x) elf64_to_cpu(x) +#define elf_xword_to_cpu(x) elf64_to_cpu(x) +#else +#define elf_addr_to_cpu(x) elf32_to_cpu(x) +#define elf_off_to_cpu(x) elf32_to_cpu(x) +#define elf_xword_to_cpu(x) elf32_to_cpu(x) +#endif + static void read_ehdr(FILE *fp) { if (fread(&ehdr, sizeof(ehdr), 1, fp) != 1) { @@ -283,8 +338,8 @@ static void read_ehdr(FILE *fp) if (memcmp(ehdr.e_ident, ELFMAG, SELFMAG) != 0) { die("No ELF magic\n"); } - if (ehdr.e_ident[EI_CLASS] != ELFCLASS32) { - die("Not a 32 bit executable\n"); + if (ehdr.e_ident[EI_CLASS] != ELF_CLASS) { + die("Not a %d bit executable\n", ELF_BITS); } if (ehdr.e_ident[EI_DATA] != ELFDATA2LSB) { die("Not a LSB ELF executable\n"); @@ -293,36 +348,36 @@ static void read_ehdr(FILE *fp) die("Unknown ELF version\n"); } /* Convert the fields to native endian */ - ehdr.e_type = elf16_to_cpu(ehdr.e_type); - ehdr.e_machine = elf16_to_cpu(ehdr.e_machine); - ehdr.e_version = elf32_to_cpu(ehdr.e_version); - ehdr.e_entry = elf32_to_cpu(ehdr.e_entry); - ehdr.e_phoff = elf32_to_cpu(ehdr.e_phoff); - ehdr.e_shoff = elf32_to_cpu(ehdr.e_shoff); - ehdr.e_flags = elf32_to_cpu(ehdr.e_flags); - ehdr.e_ehsize = elf16_to_cpu(ehdr.e_ehsize); - ehdr.e_phentsize = elf16_to_cpu(ehdr.e_phentsize); - ehdr.e_phnum = elf16_to_cpu(ehdr.e_phnum); - ehdr.e_shentsize = elf16_to_cpu(ehdr.e_shentsize); - ehdr.e_shnum = elf16_to_cpu(ehdr.e_shnum); - ehdr.e_shstrndx = elf16_to_cpu(ehdr.e_shstrndx); + ehdr.e_type = elf_half_to_cpu(ehdr.e_type); + ehdr.e_machine = elf_half_to_cpu(ehdr.e_machine); + ehdr.e_version = elf_word_to_cpu(ehdr.e_version); + ehdr.e_entry = elf_addr_to_cpu(ehdr.e_entry); + ehdr.e_phoff = elf_off_to_cpu(ehdr.e_phoff); + ehdr.e_shoff = elf_off_to_cpu(ehdr.e_shoff); + ehdr.e_flags = elf_word_to_cpu(ehdr.e_flags); + ehdr.e_ehsize = elf_half_to_cpu(ehdr.e_ehsize); + ehdr.e_phentsize = elf_half_to_cpu(ehdr.e_phentsize); + ehdr.e_phnum = elf_half_to_cpu(ehdr.e_phnum); + ehdr.e_shentsize = elf_half_to_cpu(ehdr.e_shentsize); + ehdr.e_shnum = elf_half_to_cpu(ehdr.e_shnum); + ehdr.e_shstrndx = elf_half_to_cpu(ehdr.e_shstrndx); if ((ehdr.e_type != ET_EXEC) && (ehdr.e_type != ET_DYN)) { die("Unsupported ELF header type\n"); } - if (ehdr.e_machine != EM_386) { - die("Not for x86\n"); + if (ehdr.e_machine != ELF_MACHINE) { + die("Not for %s\n", ELF_MACHINE_NAME); } if (ehdr.e_version != EV_CURRENT) { die("Unknown ELF version\n"); } - if (ehdr.e_ehsize != sizeof(Elf32_Ehdr)) { + if (ehdr.e_ehsize != sizeof(Elf_Ehdr)) { die("Bad Elf header size\n"); } - if (ehdr.e_phentsize != sizeof(Elf32_Phdr)) { + if (ehdr.e_phentsize != sizeof(Elf_Phdr)) { die("Bad program header entry\n"); } - if (ehdr.e_shentsize != sizeof(Elf32_Shdr)) { + if (ehdr.e_shentsize != sizeof(Elf_Shdr)) { die("Bad section header entry\n"); } if (ehdr.e_shstrndx >= ehdr.e_shnum) { @@ -333,7 +388,7 @@ static void read_ehdr(FILE *fp) static void read_shdrs(FILE *fp) { int i; - Elf32_Shdr shdr; + Elf_Shdr shdr; secs = calloc(ehdr.e_shnum, sizeof(struct section)); if (!secs) { @@ -349,16 +404,16 @@ static void read_shdrs(FILE *fp) if (fread(&shdr, sizeof shdr, 1, fp) != 1) die("Cannot read ELF section headers %d/%d: %s\n", i, ehdr.e_shnum, strerror(errno)); - sec->shdr.sh_name = elf32_to_cpu(shdr.sh_name); - sec->shdr.sh_type = elf32_to_cpu(shdr.sh_type); - sec->shdr.sh_flags = elf32_to_cpu(shdr.sh_flags); - sec->shdr.sh_addr = elf32_to_cpu(shdr.sh_addr); - sec->shdr.sh_offset = elf32_to_cpu(shdr.sh_offset); - sec->shdr.sh_size = elf32_to_cpu(shdr.sh_size); - sec->shdr.sh_link = elf32_to_cpu(shdr.sh_link); - sec->shdr.sh_info = elf32_to_cpu(shdr.sh_info); - sec->shdr.sh_addralign = elf32_to_cpu(shdr.sh_addralign); - sec->shdr.sh_entsize = elf32_to_cpu(shdr.sh_entsize); + sec->shdr.sh_name = elf_word_to_cpu(shdr.sh_name); + sec->shdr.sh_type = elf_word_to_cpu(shdr.sh_type); + sec->shdr.sh_flags = elf_xword_to_cpu(shdr.sh_flags); + sec->shdr.sh_addr = elf_addr_to_cpu(shdr.sh_addr); + sec->shdr.sh_offset = elf_off_to_cpu(shdr.sh_offset); + sec->shdr.sh_size = elf_xword_to_cpu(shdr.sh_size); + sec->shdr.sh_link = elf_word_to_cpu(shdr.sh_link); + sec->shdr.sh_info = elf_word_to_cpu(shdr.sh_info); + sec->shdr.sh_addralign = elf_xword_to_cpu(shdr.sh_addralign); + sec->shdr.sh_entsize = elf_xword_to_cpu(shdr.sh_entsize); if (sec->shdr.sh_link < ehdr.e_shnum) sec->link = &secs[sec->shdr.sh_link]; } @@ -412,12 +467,12 @@ static void read_symtabs(FILE *fp) die("Cannot read symbol table: %s\n", strerror(errno)); } - for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Sym); j++) { - Elf32_Sym *sym = &sec->symtab[j]; - sym->st_name = elf32_to_cpu(sym->st_name); - sym->st_value = elf32_to_cpu(sym->st_value); - sym->st_size = elf32_to_cpu(sym->st_size); - sym->st_shndx = elf16_to_cpu(sym->st_shndx); + for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Sym); j++) { + Elf_Sym *sym = &sec->symtab[j]; + sym->st_name = elf_word_to_cpu(sym->st_name); + sym->st_value = elf_addr_to_cpu(sym->st_value); + sym->st_size = elf_xword_to_cpu(sym->st_size); + sym->st_shndx = elf_half_to_cpu(sym->st_shndx); } } } @@ -428,7 +483,7 @@ static void read_relocs(FILE *fp) int i,j; for (i = 0; i < ehdr.e_shnum; i++) { struct section *sec = &secs[i]; - if (sec->shdr.sh_type != SHT_REL) { + if (sec->shdr.sh_type != SHT_REL_TYPE) { continue; } sec->reltab = malloc(sec->shdr.sh_size); @@ -445,10 +500,13 @@ static void read_relocs(FILE *fp) die("Cannot read symbol table: %s\n", strerror(errno)); } - for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) { - Elf32_Rel *rel = &sec->reltab[j]; - rel->r_offset = elf32_to_cpu(rel->r_offset); - rel->r_info = elf32_to_cpu(rel->r_info); + for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Rel); j++) { + Elf_Rel *rel = &sec->reltab[j]; + rel->r_offset = elf_addr_to_cpu(rel->r_offset); + rel->r_info = elf_xword_to_cpu(rel->r_info); +#if (SHT_REL_TYPE == SHT_RELA) + rel->r_addend = elf_xword_to_cpu(rel->r_addend); +#endif } } } @@ -457,6 +515,13 @@ static void read_relocs(FILE *fp) static void print_absolute_symbols(void) { int i; + const char *format; + + if (ELF_BITS == 64) + format = "%5d %016"PRIx64" %5"PRId64" %10s %10s %12s %s\n"; + else + format = "%5d %08"PRIx32" %5"PRId32" %10s %10s %12s %s\n"; + printf("Absolute symbols\n"); printf(" Num: Value Size Type Bind Visibility Name\n"); for (i = 0; i < ehdr.e_shnum; i++) { @@ -468,19 +533,19 @@ static void print_absolute_symbols(void) continue; } sym_strtab = sec->link->strtab; - for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Sym); j++) { - Elf32_Sym *sym; + for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Sym); j++) { + Elf_Sym *sym; const char *name; sym = &sec->symtab[j]; name = sym_name(sym_strtab, sym); if (sym->st_shndx != SHN_ABS) { continue; } - printf("%5d %08x %5d %10s %10s %12s %s\n", + printf(format, j, sym->st_value, sym->st_size, - sym_type(ELF32_ST_TYPE(sym->st_info)), - sym_bind(ELF32_ST_BIND(sym->st_info)), - sym_visibility(ELF32_ST_VISIBILITY(sym->st_other)), + sym_type(ELF_ST_TYPE(sym->st_info)), + sym_bind(ELF_ST_BIND(sym->st_info)), + sym_visibility(ELF_ST_VISIBILITY(sym->st_other)), name); } } @@ -490,14 +555,20 @@ static void print_absolute_symbols(void) static void print_absolute_relocs(void) { int i, printed = 0; + const char *format; + + if (ELF_BITS == 64) + format = "%016"PRIx64" %016"PRIx64" %10s %016"PRIx64" %s\n"; + else + format = "%08"PRIx32" %08"PRIx32" %10s %08"PRIx32" %s\n"; for (i = 0; i < ehdr.e_shnum; i++) { struct section *sec = &secs[i]; struct section *sec_applies, *sec_symtab; char *sym_strtab; - Elf32_Sym *sh_symtab; + Elf_Sym *sh_symtab; int j; - if (sec->shdr.sh_type != SHT_REL) { + if (sec->shdr.sh_type != SHT_REL_TYPE) { continue; } sec_symtab = sec->link; @@ -507,12 +578,12 @@ static void print_absolute_relocs(void) } sh_symtab = sec_symtab->symtab; sym_strtab = sec_symtab->link->strtab; - for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) { - Elf32_Rel *rel; - Elf32_Sym *sym; + for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Rel); j++) { + Elf_Rel *rel; + Elf_Sym *sym; const char *name; rel = &sec->reltab[j]; - sym = &sh_symtab[ELF32_R_SYM(rel->r_info)]; + sym = &sh_symtab[ELF_R_SYM(rel->r_info)]; name = sym_name(sym_strtab, sym); if (sym->st_shndx != SHN_ABS) { continue; @@ -542,10 +613,10 @@ static void print_absolute_relocs(void) printed = 1; } - printf("%08x %08x %10s %08x %s\n", + printf(format, rel->r_offset, rel->r_info, - rel_type(ELF32_R_TYPE(rel->r_info)), + rel_type(ELF_R_TYPE(rel->r_info)), sym->st_value, name); } @@ -555,19 +626,34 @@ static void print_absolute_relocs(void) printf("\n"); } -static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym), - int use_real_mode) +static void add_reloc(struct relocs *r, uint32_t offset) +{ + if (r->count == r->size) { + unsigned long newsize = r->size + 50000; + void *mem = realloc(r->offset, newsize * sizeof(r->offset[0])); + + if (!mem) + die("realloc of %ld entries for relocs failed\n", + newsize); + r->offset = mem; + r->size = newsize; + } + r->offset[r->count++] = offset; +} + +static void walk_relocs(int (*process)(struct section *sec, Elf_Rel *rel, + Elf_Sym *sym, const char *symname)) { int i; /* Walk through the relocations */ for (i = 0; i < ehdr.e_shnum; i++) { char *sym_strtab; - Elf32_Sym *sh_symtab; + Elf_Sym *sh_symtab; struct section *sec_applies, *sec_symtab; int j; struct section *sec = &secs[i]; - if (sec->shdr.sh_type != SHT_REL) { + if (sec->shdr.sh_type != SHT_REL_TYPE) { continue; } sec_symtab = sec->link; @@ -577,101 +663,281 @@ static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym), } sh_symtab = sec_symtab->symtab; sym_strtab = sec_symtab->link->strtab; - for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) { - Elf32_Rel *rel; - Elf32_Sym *sym; - unsigned r_type; - const char *symname; - int shn_abs; + for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Rel); j++) { + Elf_Rel *rel = &sec->reltab[j]; + Elf_Sym *sym = &sh_symtab[ELF_R_SYM(rel->r_info)]; + const char *symname = sym_name(sym_strtab, sym); - rel = &sec->reltab[j]; - sym = &sh_symtab[ELF32_R_SYM(rel->r_info)]; - r_type = ELF32_R_TYPE(rel->r_info); - - shn_abs = sym->st_shndx == SHN_ABS; - - switch (r_type) { - case R_386_NONE: - case R_386_PC32: - case R_386_PC16: - case R_386_PC8: - /* - * NONE can be ignored and and PC relative - * relocations don't need to be adjusted. - */ - break; + process(sec, rel, sym, symname); + } + } +} - case R_386_16: - symname = sym_name(sym_strtab, sym); - if (!use_real_mode) - goto bad; - if (shn_abs) { - if (is_reloc(S_ABS, symname)) - break; - else if (!is_reloc(S_SEG, symname)) - goto bad; - } else { - if (is_reloc(S_LIN, symname)) - goto bad; - else - break; - } - visit(rel, sym); - break; +/* + * The .data..percpu section is a special case for x86_64 SMP kernels. + * It is used to initialize the actual per_cpu areas and to provide + * definitions for the per_cpu variables that correspond to their offsets + * within the percpu area. Since the values of all of the symbols need + * to be offsets from the start of the per_cpu area the virtual address + * (sh_addr) of .data..percpu is 0 in SMP kernels. + * + * This means that: + * + * Relocations that reference symbols in the per_cpu area do not + * need further relocation (since the value is an offset relative + * to the start of the per_cpu area that does not change). + * + * Relocations that apply to the per_cpu area need to have their + * offset adjusted by by the value of __per_cpu_load to make them + * point to the correct place in the loaded image (because the + * virtual address of .data..percpu is 0). + * + * For non SMP kernels .data..percpu is linked as part of the normal + * kernel data and does not require special treatment. + * + */ +static int per_cpu_shndx = -1; +Elf_Addr per_cpu_load_addr; - case R_386_32: - symname = sym_name(sym_strtab, sym); - if (shn_abs) { - if (is_reloc(S_ABS, symname)) - break; - else if (!is_reloc(S_REL, symname)) - goto bad; - } else { - if (use_real_mode && - !is_reloc(S_LIN, symname)) - break; - } - visit(rel, sym); - break; - default: - die("Unsupported relocation type: %s (%d)\n", - rel_type(r_type), r_type); +static void percpu_init(void) +{ + int i; + for (i = 0; i < ehdr.e_shnum; i++) { + ElfW(Sym) *sym; + if (strcmp(sec_name(i), ".data..percpu")) + continue; + + if (secs[i].shdr.sh_addr != 0) /* non SMP kernel */ + return; + + sym = sym_lookup("__per_cpu_load"); + if (!sym) + die("can't find __per_cpu_load\n"); + + per_cpu_shndx = i; + per_cpu_load_addr = sym->st_value; + return; + } +} + +#if ELF_BITS == 64 + +/* + * Check to see if a symbol lies in the .data..percpu section. + * For some as yet not understood reason the "__init_begin" + * symbol which immediately preceeds the .data..percpu section + * also shows up as it it were part of it so we do an explict + * check for that symbol name and ignore it. + */ +static int is_percpu_sym(ElfW(Sym) *sym, const char *symname) +{ + return (sym->st_shndx == per_cpu_shndx) && + strcmp(symname, "__init_begin"); +} + + +static int do_reloc64(struct section *sec, Elf_Rel *rel, ElfW(Sym) *sym, + const char *symname) +{ + unsigned r_type = ELF64_R_TYPE(rel->r_info); + ElfW(Addr) offset = rel->r_offset; + int shn_abs = (sym->st_shndx == SHN_ABS) && !is_reloc(S_REL, symname); + + if (sym->st_shndx == SHN_UNDEF) + return 0; + + /* + * Adjust the offset if this reloc applies to the percpu section. + */ + if (sec->shdr.sh_info == per_cpu_shndx) + offset += per_cpu_load_addr; + + switch (r_type) { + case R_X86_64_NONE: + case R_X86_64_PC32: + /* + * NONE can be ignored and PC relative relocations don't + * need to be adjusted. + */ + break; + + case R_X86_64_32: + case R_X86_64_32S: + case R_X86_64_64: + /* + * References to the percpu area don't need to be adjusted. + */ + if (is_percpu_sym(sym, symname)) + break; + + if (shn_abs) { + /* + * Whitelisted absolute symbols do not require + * relocation. + */ + if (is_reloc(S_ABS, symname)) break; - bad: - symname = sym_name(sym_strtab, sym); - die("Invalid %s %s relocation: %s\n", - shn_abs ? "absolute" : "relative", - rel_type(r_type), symname); - } + + die("Invalid absolute %s relocation: %s\n", + rel_type(r_type), symname); + break; } + + /* + * Relocation offsets for 64 bit kernels are output + * as 32 bits and sign extended back to 64 bits when + * the relocations are processed. + * Make sure that the offset will fit. + */ + if ((int32_t)offset != (int64_t)offset) + die("Relocation offset doesn't fit in 32 bits\n"); + + if (r_type == R_X86_64_64) + add_reloc(&relocs64, offset); + else + add_reloc(&relocs32, offset); + break; + + default: + die("Unsupported relocation type: %s (%d)\n", + rel_type(r_type), r_type); + break; } + + return 0; } -static void count_reloc(Elf32_Rel *rel, Elf32_Sym *sym) +#else + +static int do_reloc32(struct section *sec, Elf_Rel *rel, Elf_Sym *sym, + const char *symname) { - if (ELF32_R_TYPE(rel->r_info) == R_386_16) - reloc16_count++; - else - reloc_count++; + unsigned r_type = ELF32_R_TYPE(rel->r_info); + int shn_abs = (sym->st_shndx == SHN_ABS) && !is_reloc(S_REL, symname); + + switch (r_type) { + case R_386_NONE: + case R_386_PC32: + case R_386_PC16: + case R_386_PC8: + /* + * NONE can be ignored and PC relative relocations don't + * need to be adjusted. + */ + break; + + case R_386_32: + if (shn_abs) { + /* + * Whitelisted absolute symbols do not require + * relocation. + */ + if (is_reloc(S_ABS, symname)) + break; + + die("Invalid absolute %s relocation: %s\n", + rel_type(r_type), symname); + break; + } + + add_reloc(&relocs32, rel->r_offset); + break; + + default: + die("Unsupported relocation type: %s (%d)\n", + rel_type(r_type), r_type); + break; + } + + return 0; } -static void collect_reloc(Elf32_Rel *rel, Elf32_Sym *sym) +static int do_reloc_real(struct section *sec, Elf_Rel *rel, Elf_Sym *sym, + const char *symname) { - /* Remember the address that needs to be adjusted. */ - if (ELF32_R_TYPE(rel->r_info) == R_386_16) - relocs16[reloc16_idx++] = rel->r_offset; - else - relocs[reloc_idx++] = rel->r_offset; + unsigned r_type = ELF32_R_TYPE(rel->r_info); + int shn_abs = (sym->st_shndx == SHN_ABS) && !is_reloc(S_REL, symname); + + switch (r_type) { + case R_386_NONE: + case R_386_PC32: + case R_386_PC16: + case R_386_PC8: + /* + * NONE can be ignored and PC relative relocations don't + * need to be adjusted. + */ + break; + + case R_386_16: + if (shn_abs) { + /* + * Whitelisted absolute symbols do not require + * relocation. + */ + if (is_reloc(S_ABS, symname)) + break; + + if (is_reloc(S_SEG, symname)) { + add_reloc(&relocs16, rel->r_offset); + break; + } + } else { + if (!is_reloc(S_LIN, symname)) + break; + } + die("Invalid %s %s relocation: %s\n", + shn_abs ? "absolute" : "relative", + rel_type(r_type), symname); + break; + + case R_386_32: + if (shn_abs) { + /* + * Whitelisted absolute symbols do not require + * relocation. + */ + if (is_reloc(S_ABS, symname)) + break; + + if (is_reloc(S_REL, symname)) { + add_reloc(&relocs32, rel->r_offset); + break; + } + } else { + if (is_reloc(S_LIN, symname)) + add_reloc(&relocs32, rel->r_offset); + break; + } + die("Invalid %s %s relocation: %s\n", + shn_abs ? "absolute" : "relative", + rel_type(r_type), symname); + break; + + default: + die("Unsupported relocation type: %s (%d)\n", + rel_type(r_type), r_type); + break; + } + + return 0; } +#endif + static int cmp_relocs(const void *va, const void *vb) { - const unsigned long *a, *b; + const uint32_t *a, *b; a = va; b = vb; return (*a == *b)? 0 : (*a > *b)? 1 : -1; } -static int write32(unsigned int v, FILE *f) +static void sort_relocs(struct relocs *r) +{ + qsort(r->offset, r->count, sizeof(r->offset[0]), cmp_relocs); +} + +static int write32(uint32_t v, FILE *f) { unsigned char buf[4]; @@ -679,33 +945,40 @@ static int write32(unsigned int v, FILE *f) return fwrite(buf, 1, 4, f) == 4 ? 0 : -1; } +static int write32_as_text(uint32_t v, FILE *f) +{ + return fprintf(f, "\t.long 0x%08"PRIx32"\n", v) > 0 ? 0 : -1; +} + static void emit_relocs(int as_text, int use_real_mode) { int i; - /* Count how many relocations I have and allocate space for them. */ - reloc_count = 0; - walk_relocs(count_reloc, use_real_mode); - relocs = malloc(reloc_count * sizeof(relocs[0])); - if (!relocs) { - die("malloc of %d entries for relocs failed\n", - reloc_count); - } + int (*write_reloc)(uint32_t, FILE *) = write32; + int (*do_reloc)(struct section *sec, Elf_Rel *rel, Elf_Sym *sym, + const char *symname); + +#if ELF_BITS == 64 + if (!use_real_mode) + do_reloc = do_reloc64; + else + die("--realmode not valid for a 64-bit ELF file"); +#else + if (!use_real_mode) + do_reloc = do_reloc32; + else + do_reloc = do_reloc_real; +#endif - relocs16 = malloc(reloc16_count * sizeof(relocs[0])); - if (!relocs16) { - die("malloc of %d entries for relocs16 failed\n", - reloc16_count); - } /* Collect up the relocations */ - reloc_idx = 0; - walk_relocs(collect_reloc, use_real_mode); + walk_relocs(do_reloc); - if (reloc16_count && !use_real_mode) + if (relocs16.count && !use_real_mode) die("Segment relocations found but --realmode not specified\n"); /* Order the relocations for more efficient processing */ - qsort(relocs, reloc_count, sizeof(relocs[0]), cmp_relocs); - qsort(relocs16, reloc16_count, sizeof(relocs16[0]), cmp_relocs); + sort_relocs(&relocs16); + sort_relocs(&relocs32); + sort_relocs(&relocs64); /* Print the relocations */ if (as_text) { @@ -714,114 +987,60 @@ static void emit_relocs(int as_text, int use_real_mode) */ printf(".section \".data.reloc\",\"a\"\n"); printf(".balign 4\n"); - if (use_real_mode) { - printf("\t.long %lu\n", reloc16_count); - for (i = 0; i < reloc16_count; i++) - printf("\t.long 0x%08lx\n", relocs16[i]); - printf("\t.long %lu\n", reloc_count); - for (i = 0; i < reloc_count; i++) { - printf("\t.long 0x%08lx\n", relocs[i]); - } - } else { - /* Print a stop */ - printf("\t.long 0x%08lx\n", (unsigned long)0); - for (i = 0; i < reloc_count; i++) { - printf("\t.long 0x%08lx\n", relocs[i]); - } - } - - printf("\n"); + write_reloc = write32_as_text; } - else { - if (use_real_mode) { - write32(reloc16_count, stdout); - for (i = 0; i < reloc16_count; i++) - write32(relocs16[i], stdout); - write32(reloc_count, stdout); - /* Now print each relocation */ - for (i = 0; i < reloc_count; i++) - write32(relocs[i], stdout); - } else { + if (use_real_mode) { + write_reloc(relocs16.count, stdout); + for (i = 0; i < relocs16.count; i++) + write_reloc(relocs16.offset[i], stdout); + + write_reloc(relocs32.count, stdout); + for (i = 0; i < relocs32.count; i++) + write_reloc(relocs32.offset[i], stdout); + } else { + if (ELF_BITS == 64) { /* Print a stop */ - write32(0, stdout); + write_reloc(0, stdout); /* Now print each relocation */ - for (i = 0; i < reloc_count; i++) { - write32(relocs[i], stdout); - } + for (i = 0; i < relocs64.count; i++) + write_reloc(relocs64.offset[i], stdout); } + + /* Print a stop */ + write_reloc(0, stdout); + + /* Now print each relocation */ + for (i = 0; i < relocs32.count; i++) + write_reloc(relocs32.offset[i], stdout); } } -static void usage(void) -{ - die("relocs [--abs-syms|--abs-relocs|--text|--realmode] vmlinux\n"); -} +#if ELF_BITS == 64 +# define process process_64 +#else +# define process process_32 +#endif -int main(int argc, char **argv) +void process(FILE *fp, int use_real_mode, int as_text, + int show_absolute_syms, int show_absolute_relocs) { - int show_absolute_syms, show_absolute_relocs; - int as_text, use_real_mode; - const char *fname; - FILE *fp; - int i; - - show_absolute_syms = 0; - show_absolute_relocs = 0; - as_text = 0; - use_real_mode = 0; - fname = NULL; - for (i = 1; i < argc; i++) { - char *arg = argv[i]; - if (*arg == '-') { - if (strcmp(arg, "--abs-syms") == 0) { - show_absolute_syms = 1; - continue; - } - if (strcmp(arg, "--abs-relocs") == 0) { - show_absolute_relocs = 1; - continue; - } - if (strcmp(arg, "--text") == 0) { - as_text = 1; - continue; - } - if (strcmp(arg, "--realmode") == 0) { - use_real_mode = 1; - continue; - } - } - else if (!fname) { - fname = arg; - continue; - } - usage(); - } - if (!fname) { - usage(); - } regex_init(use_real_mode); - fp = fopen(fname, "r"); - if (!fp) { - die("Cannot open %s: %s\n", - fname, strerror(errno)); - } read_ehdr(fp); read_shdrs(fp); read_strtabs(fp); read_symtabs(fp); read_relocs(fp); + if (ELF_BITS == 64) + percpu_init(); if (show_absolute_syms) { print_absolute_symbols(); - goto out; + return; } if (show_absolute_relocs) { print_absolute_relocs(); - goto out; + return; } emit_relocs(as_text, use_real_mode); -out: - fclose(fp); - return 0; } diff --git a/arch/x86/tools/relocs.h b/arch/x86/tools/relocs.h new file mode 100644 index 0000000..07cdb1e --- /dev/null +++ b/arch/x86/tools/relocs.h @@ -0,0 +1,36 @@ +#ifndef RELOCS_H +#define RELOCS_H + +#include <stdio.h> +#include <stdarg.h> +#include <stdlib.h> +#include <stdint.h> +#include <inttypes.h> +#include <string.h> +#include <errno.h> +#include <unistd.h> +#include <elf.h> +#include <byteswap.h> +#define USE_BSD +#include <endian.h> +#include <regex.h> +#include <tools/le_byteshift.h> + +void die(char *fmt, ...); + +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) + +enum symtype { + S_ABS, + S_REL, + S_SEG, + S_LIN, + S_NSYMTYPES +}; + +void process_32(FILE *fp, int use_real_mode, int as_text, + int show_absolute_syms, int show_absolute_relocs); +void process_64(FILE *fp, int use_real_mode, int as_text, + int show_absolute_syms, int show_absolute_relocs); + +#endif /* RELOCS_H */ diff --git a/arch/x86/tools/relocs_32.c b/arch/x86/tools/relocs_32.c new file mode 100644 index 0000000..b2ade2b --- /dev/null +++ b/arch/x86/tools/relocs_32.c @@ -0,0 +1,17 @@ +#include "relocs.h" + +#define ELF_BITS 32 + +#define ELF_MACHINE EM_386 +#define ELF_MACHINE_NAME "i386" +#define SHT_REL_TYPE SHT_REL +#define Elf_Rel ElfW(Rel) + +#define ELF_CLASS ELFCLASS32 +#define ELF_R_SYM(val) ELF32_R_SYM(val) +#define ELF_R_TYPE(val) ELF32_R_TYPE(val) +#define ELF_ST_TYPE(o) ELF32_ST_TYPE(o) +#define ELF_ST_BIND(o) ELF32_ST_BIND(o) +#define ELF_ST_VISIBILITY(o) ELF32_ST_VISIBILITY(o) + +#include "relocs.c" diff --git a/arch/x86/tools/relocs_64.c b/arch/x86/tools/relocs_64.c new file mode 100644 index 0000000..56b61b7 --- /dev/null +++ b/arch/x86/tools/relocs_64.c @@ -0,0 +1,17 @@ +#include "relocs.h" + +#define ELF_BITS 64 + +#define ELF_MACHINE EM_X86_64 +#define ELF_MACHINE_NAME "x86_64" +#define SHT_REL_TYPE SHT_RELA +#define Elf_Rel Elf64_Rela + +#define ELF_CLASS ELFCLASS64 +#define ELF_R_SYM(val) ELF64_R_SYM(val) +#define ELF_R_TYPE(val) ELF64_R_TYPE(val) +#define ELF_ST_TYPE(o) ELF64_ST_TYPE(o) +#define ELF_ST_BIND(o) ELF64_ST_BIND(o) +#define ELF_ST_VISIBILITY(o) ELF64_ST_VISIBILITY(o) + +#include "relocs.c" diff --git a/arch/x86/tools/relocs_common.c b/arch/x86/tools/relocs_common.c new file mode 100644 index 0000000..44d3968 --- /dev/null +++ b/arch/x86/tools/relocs_common.c @@ -0,0 +1,76 @@ +#include "relocs.h" + +void die(char *fmt, ...) +{ + va_list ap; + va_start(ap, fmt); + vfprintf(stderr, fmt, ap); + va_end(ap); + exit(1); +} + +static void usage(void) +{ + die("relocs [--abs-syms|--abs-relocs|--text|--realmode] vmlinux\n"); +} + +int main(int argc, char **argv) +{ + int show_absolute_syms, show_absolute_relocs; + int as_text, use_real_mode; + const char *fname; + FILE *fp; + int i; + unsigned char e_ident[EI_NIDENT]; + + show_absolute_syms = 0; + show_absolute_relocs = 0; + as_text = 0; + use_real_mode = 0; + fname = NULL; + for (i = 1; i < argc; i++) { + char *arg = argv[i]; + if (*arg == '-') { + if (strcmp(arg, "--abs-syms") == 0) { + show_absolute_syms = 1; + continue; + } + if (strcmp(arg, "--abs-relocs") == 0) { + show_absolute_relocs = 1; + continue; + } + if (strcmp(arg, "--text") == 0) { + as_text = 1; + continue; + } + if (strcmp(arg, "--realmode") == 0) { + use_real_mode = 1; + continue; + } + } + else if (!fname) { + fname = arg; + continue; + } + usage(); + } + if (!fname) { + usage(); + } + fp = fopen(fname, "r"); + if (!fp) { + die("Cannot open %s: %s\n", fname, strerror(errno)); + } + if (fread(&e_ident, 1, EI_NIDENT, fp) != EI_NIDENT) { + die("Cannot read %s: %s", fname, strerror(errno)); + } + rewind(fp); + if (e_ident[EI_CLASS] == ELFCLASS64) + process_64(fp, use_real_mode, as_text, + show_absolute_syms, show_absolute_relocs); + else + process_32(fp, use_real_mode, as_text, + show_absolute_syms, show_absolute_relocs); + fclose(fp); + return 0; +} diff --git a/arch/x86/um/tls_32.c b/arch/x86/um/tls_32.c index 5f5feff..80ffa5b 100644 --- a/arch/x86/um/tls_32.c +++ b/arch/x86/um/tls_32.c @@ -5,6 +5,7 @@ #include <linux/percpu.h> #include <linux/sched.h> +#include <linux/syscalls.h> #include <asm/uaccess.h> #include <os.h> #include <skas.h> @@ -274,7 +275,7 @@ clear: goto out; } -int sys_set_thread_area(struct user_desc __user *user_desc) +SYSCALL_DEFINE1(set_thread_area, struct user_desc __user *, user_desc) { struct user_desc info; int idx, ret; @@ -322,7 +323,7 @@ int ptrace_set_thread_area(struct task_struct *child, int idx, return set_tls_entry(child, &info, idx, 0); } -int sys_get_thread_area(struct user_desc __user *user_desc) +SYSCALL_DEFINE1(get_thread_area, struct user_desc __user *, user_desc) { struct user_desc info; int idx, ret; diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig index 131dacd..1a3c765 100644 --- a/arch/x86/xen/Kconfig +++ b/arch/x86/xen/Kconfig @@ -4,7 +4,7 @@ config XEN bool "Xen guest support" - select PARAVIRT + depends on PARAVIRT select PARAVIRT_CLOCK select XEN_HAVE_PVMMU depends on X86_64 || (X86_32 && X86_PAE && !X86_VISWS) diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index c8e1c7b..53d4f68 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -31,6 +31,7 @@ #include <linux/pci.h> #include <linux/gfp.h> #include <linux/memblock.h> +#include <linux/edd.h> #include <xen/xen.h> #include <xen/events.h> @@ -1220,7 +1221,6 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = { .alloc_ldt = xen_alloc_ldt, .free_ldt = xen_free_ldt, - .store_gdt = native_store_gdt, .store_idt = native_store_idt, .store_tr = xen_store_tr, @@ -1306,6 +1306,55 @@ static const struct machine_ops xen_machine_ops __initconst = { .emergency_restart = xen_emergency_restart, }; +static void __init xen_boot_params_init_edd(void) +{ +#if IS_ENABLED(CONFIG_EDD) + struct xen_platform_op op; + struct edd_info *edd_info; + u32 *mbr_signature; + unsigned nr; + int ret; + + edd_info = boot_params.eddbuf; + mbr_signature = boot_params.edd_mbr_sig_buffer; + + op.cmd = XENPF_firmware_info; + + op.u.firmware_info.type = XEN_FW_DISK_INFO; + for (nr = 0; nr < EDDMAXNR; nr++) { + struct edd_info *info = edd_info + nr; + + op.u.firmware_info.index = nr; + info->params.length = sizeof(info->params); + set_xen_guest_handle(op.u.firmware_info.u.disk_info.edd_params, + &info->params); + ret = HYPERVISOR_dom0_op(&op); + if (ret) + break; + +#define C(x) info->x = op.u.firmware_info.u.disk_info.x + C(device); + C(version); + C(interface_support); + C(legacy_max_cylinder); + C(legacy_max_head); + C(legacy_sectors_per_track); +#undef C + } + boot_params.eddbuf_entries = nr; + + op.u.firmware_info.type = XEN_FW_DISK_MBR_SIGNATURE; + for (nr = 0; nr < EDD_MBR_SIG_MAX; nr++) { + op.u.firmware_info.index = nr; + ret = HYPERVISOR_dom0_op(&op); + if (ret) + break; + mbr_signature[nr] = op.u.firmware_info.u.disk_mbr_signature.mbr_signature; + } + boot_params.edd_mbr_sig_buf_entries = nr; +#endif +} + /* * Set up the GDT and segment registers for -fstack-protector. Until * we do this, we have to be careful not to call any stack-protected @@ -1508,6 +1557,8 @@ asmlinkage void __init xen_start_kernel(void) /* Avoid searching for BIOS MP tables */ x86_init.mpparse.find_smp_config = x86_init_noop; x86_init.mpparse.get_smp_config = x86_init_uint_noop; + + xen_boot_params_init_edd(); } #ifdef CONFIG_PCI /* PCI BIOS service won't work from a PV guest. */ @@ -1589,8 +1640,11 @@ static int __cpuinit xen_hvm_cpu_notify(struct notifier_block *self, switch (action) { case CPU_UP_PREPARE: xen_vcpu_setup(cpu); - if (xen_have_vector_callback) + if (xen_have_vector_callback) { xen_init_lock_cpu(cpu); + if (xen_feature(XENFEAT_hvm_safe_pvclock)) + xen_setup_timer(cpu); + } break; default: break; diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index e006c18..fdc3ba2 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -2043,9 +2043,7 @@ static void xen_set_fixmap(unsigned idx, phys_addr_t phys, pgprot_t prot) switch (idx) { case FIX_BTMAP_END ... FIX_BTMAP_BEGIN: -#ifdef CONFIG_X86_F00F_BUG - case FIX_F00F_IDT: -#endif + case FIX_RO_IDT: #ifdef CONFIG_X86_32 case FIX_WP_TEST: case FIX_VDSO: diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index 09ea61d..8ff3799 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -95,7 +95,7 @@ static void __cpuinit cpu_bringup(void) static void __cpuinit cpu_bringup_and_idle(void) { cpu_bringup(); - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } static int xen_smp_intr_init(unsigned int cpu) @@ -144,6 +144,13 @@ static int xen_smp_intr_init(unsigned int cpu) goto fail; per_cpu(xen_callfuncsingle_irq, cpu) = rc; + /* + * The IRQ worker on PVHVM goes through the native path and uses the + * IPI mechanism. + */ + if (xen_hvm_domain()) + return 0; + callfunc_name = kasprintf(GFP_KERNEL, "irqwork%d", cpu); rc = bind_ipi_to_irqhandler(XEN_IRQ_WORK_VECTOR, cpu, @@ -167,6 +174,9 @@ static int xen_smp_intr_init(unsigned int cpu) if (per_cpu(xen_callfuncsingle_irq, cpu) >= 0) unbind_from_irqhandler(per_cpu(xen_callfuncsingle_irq, cpu), NULL); + if (xen_hvm_domain()) + return rc; + if (per_cpu(xen_irq_work, cpu) >= 0) unbind_from_irqhandler(per_cpu(xen_irq_work, cpu), NULL); @@ -418,7 +428,7 @@ static int xen_cpu_disable(void) static void xen_cpu_die(unsigned int cpu) { - while (HYPERVISOR_vcpu_op(VCPUOP_is_up, cpu, NULL)) { + while (xen_pv_domain() && HYPERVISOR_vcpu_op(VCPUOP_is_up, cpu, NULL)) { current->state = TASK_UNINTERRUPTIBLE; schedule_timeout(HZ/10); } @@ -426,7 +436,8 @@ static void xen_cpu_die(unsigned int cpu) unbind_from_irqhandler(per_cpu(xen_callfunc_irq, cpu), NULL); unbind_from_irqhandler(per_cpu(xen_debug_irq, cpu), NULL); unbind_from_irqhandler(per_cpu(xen_callfuncsingle_irq, cpu), NULL); - unbind_from_irqhandler(per_cpu(xen_irq_work, cpu), NULL); + if (!xen_hvm_domain()) + unbind_from_irqhandler(per_cpu(xen_irq_work, cpu), NULL); xen_uninit_lock_cpu(cpu); xen_teardown_timer(cpu); } @@ -657,11 +668,7 @@ static int __cpuinit xen_hvm_cpu_up(unsigned int cpu, struct task_struct *tidle) static void xen_hvm_cpu_die(unsigned int cpu) { - unbind_from_irqhandler(per_cpu(xen_resched_irq, cpu), NULL); - unbind_from_irqhandler(per_cpu(xen_callfunc_irq, cpu), NULL); - unbind_from_irqhandler(per_cpu(xen_debug_irq, cpu), NULL); - unbind_from_irqhandler(per_cpu(xen_callfuncsingle_irq, cpu), NULL); - unbind_from_irqhandler(per_cpu(xen_irq_work, cpu), NULL); + xen_cpu_die(cpu); native_cpu_die(cpu); } diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c index f7a080e..8b54603 100644 --- a/arch/x86/xen/spinlock.c +++ b/arch/x86/xen/spinlock.c @@ -364,6 +364,16 @@ void __cpuinit xen_init_lock_cpu(int cpu) int irq; const char *name; + WARN(per_cpu(lock_kicker_irq, cpu) > 0, "spinlock on CPU%d exists on IRQ%d!\n", + cpu, per_cpu(lock_kicker_irq, cpu)); + + /* + * See git commit f10cd522c5fbfec9ae3cc01967868c9c2401ed23 + * (xen: disable PV spinlocks on HVM) + */ + if (xen_hvm_domain()) + return; + name = kasprintf(GFP_KERNEL, "spinlock%d", cpu); irq = bind_ipi_to_irqhandler(XEN_SPIN_UNLOCK_VECTOR, cpu, @@ -382,11 +392,26 @@ void __cpuinit xen_init_lock_cpu(int cpu) void xen_uninit_lock_cpu(int cpu) { + /* + * See git commit f10cd522c5fbfec9ae3cc01967868c9c2401ed23 + * (xen: disable PV spinlocks on HVM) + */ + if (xen_hvm_domain()) + return; + unbind_from_irqhandler(per_cpu(lock_kicker_irq, cpu), NULL); + per_cpu(lock_kicker_irq, cpu) = -1; } void __init xen_init_spinlocks(void) { + /* + * See git commit f10cd522c5fbfec9ae3cc01967868c9c2401ed23 + * (xen: disable PV spinlocks on HVM) + */ + if (xen_hvm_domain()) + return; + BUILD_BUG_ON(sizeof(struct xen_spinlock) > sizeof(arch_spinlock_t)); pv_lock_ops.spin_is_locked = xen_spin_is_locked; diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c index 0296a95..3d88bfd 100644 --- a/arch/x86/xen/time.c +++ b/arch/x86/xen/time.c @@ -377,7 +377,7 @@ static const struct clock_event_device xen_vcpuop_clockevent = { static const struct clock_event_device *xen_clockevent = &xen_timerop_clockevent; -static DEFINE_PER_CPU(struct clock_event_device, xen_clock_events); +static DEFINE_PER_CPU(struct clock_event_device, xen_clock_events) = { .irq = -1 }; static irqreturn_t xen_timer_interrupt(int irq, void *dev_id) { @@ -401,6 +401,9 @@ void xen_setup_timer(int cpu) struct clock_event_device *evt; int irq; + evt = &per_cpu(xen_clock_events, cpu); + WARN(evt->irq >= 0, "IRQ%d for CPU%d is already allocated\n", evt->irq, cpu); + printk(KERN_INFO "installing Xen timer for CPU %d\n", cpu); name = kasprintf(GFP_KERNEL, "timer%d", cpu); @@ -413,7 +416,6 @@ void xen_setup_timer(int cpu) IRQF_FORCE_RESUME, name, NULL); - evt = &per_cpu(xen_clock_events, cpu); memcpy(evt, xen_clockevent, sizeof(*evt)); evt->cpumask = cpumask_of(cpu); @@ -426,6 +428,7 @@ void xen_teardown_timer(int cpu) BUG_ON(cpu == 0); evt = &per_cpu(xen_clock_events, cpu); unbind_from_irqhandler(evt->irq, NULL); + evt->irq = -1; } void xen_setup_cpu_clockevents(void) @@ -497,7 +500,11 @@ static void xen_hvm_setup_cpu_clockevents(void) { int cpu = smp_processor_id(); xen_setup_runstate_info(cpu); - xen_setup_timer(cpu); + /* + * xen_setup_timer(cpu) - snprintf is bad in atomic context. Hence + * doing it xen_hvm_cpu_notify (which gets called by smp_init during + * early bootup and also during CPU hotplug events). + */ xen_setup_cpu_clockevents(); } diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h index c38834d..cb4c2ce8 100644 --- a/arch/xtensa/include/asm/unistd.h +++ b/arch/xtensa/include/asm/unistd.h @@ -4,14 +4,6 @@ #define __ARCH_WANT_SYS_CLONE #include <uapi/asm/unistd.h> -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall"); - #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SYS_UTIME #define __ARCH_WANT_SYS_LLSEEK diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c index 5cd82e9..1c85323 100644 --- a/arch/xtensa/kernel/process.c +++ b/arch/xtensa/kernel/process.c @@ -105,19 +105,9 @@ void coprocessor_flush_all(struct thread_info *ti) /* * Powermanagement idle function, if any is provided by the platform. */ - -void cpu_idle(void) +void arch_cpu_idle(void) { - local_irq_enable(); - - /* endless idle loop with no priority at all */ - while (1) { - rcu_idle_enter(); - while (!need_resched()) - platform_idle(); - rcu_idle_exit(); - schedule_preempt_disabled(); - } + platform_idle(); } /* diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c index 923db5c..458186d 100644 --- a/arch/xtensa/kernel/traps.c +++ b/arch/xtensa/kernel/traps.c @@ -383,6 +383,8 @@ void show_regs(struct pt_regs * regs) { int i, wmask; + show_regs_print_info(KERN_DEFAULT); + wmask = regs->wmask & ~1; for (i = 0; i < 16; i++) { @@ -481,14 +483,6 @@ void show_stack(struct task_struct *task, unsigned long *sp) show_trace(task, stack); } -void dump_stack(void) -{ - show_stack(current, NULL); -} - -EXPORT_SYMBOL(dump_stack); - - void show_code(unsigned int *pc) { long i; diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index 7a5156f..bba125b 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -208,32 +208,17 @@ void __init mem_init(void) highmemsize >> 10); } -void -free_reserved_mem(void *start, void *end) -{ - for (; start < end; start += PAGE_SIZE) { - ClearPageReserved(virt_to_page(start)); - init_page_count(virt_to_page(start)); - free_page((unsigned long)start); - totalram_pages++; - } -} - #ifdef CONFIG_BLK_DEV_INITRD extern int initrd_is_mapped; void free_initrd_mem(unsigned long start, unsigned long end) { - if (initrd_is_mapped) { - free_reserved_mem((void*)start, (void*)end); - printk ("Freeing initrd memory: %ldk freed\n",(end-start)>>10); - } + if (initrd_is_mapped) + free_reserved_area(start, end, 0, "initrd"); } #endif void free_initmem(void) { - free_reserved_mem(__init_begin, __init_end); - printk("Freeing unused kernel memory: %zuk freed\n", - (__init_end - __init_begin) >> 10); + free_initmem_default(0); } |
