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| author | H. Peter Anvin <hpa@zytor.com> | 2010-05-09 01:59:58 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-05-09 01:59:58 +0400 |
| commit | d7be0ce6afb1df60bc786f57410407ceae92b994 (patch) | |
| tree | 5e91acfc12c833531ad3320f274e0cd96a129973 /arch/sparc/kernel/nmi.c | |
| parent | e08cae4181af9483b04ecfac48f01c8e5a5f27bf (diff) | |
| parent | 66f41d4c5c8a5deed66fdcc84509376c9a0bf9d8 (diff) | |
| download | linux-d7be0ce6afb1df60bc786f57410407ceae92b994.tar.xz | |
Merge commit 'v2.6.34-rc6' into x86/cpu
Diffstat (limited to 'arch/sparc/kernel/nmi.c')
| -rw-r--r-- | arch/sparc/kernel/nmi.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c index b287b62c7ea3..a4bd7ba74c89 100644 --- a/arch/sparc/kernel/nmi.c +++ b/arch/sparc/kernel/nmi.c @@ -23,6 +23,8 @@ #include <asm/ptrace.h> #include <asm/pcr.h> +#include "kstack.h" + /* We don't have a real NMI on sparc64, but we can fake one * up using profiling counter overflow interrupts and interrupt * levels. @@ -92,7 +94,7 @@ static void die_nmi(const char *str, struct pt_regs *regs, int do_panic) notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) { unsigned int sum, touched = 0; - int cpu = smp_processor_id(); + void *orig_sp; clear_softint(1 << irq); @@ -100,13 +102,15 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) nmi_enter(); + orig_sp = set_hardirq_stack(); + if (notify_die(DIE_NMI, "nmi", regs, 0, pt_regs_trap_type(regs), SIGINT) == NOTIFY_STOP) touched = 1; else pcr_ops->write(PCR_PIC_PRIV); - sum = kstat_irqs_cpu(0, cpu); + sum = local_cpu_data().irq0_irqs; if (__get_cpu_var(nmi_touch)) { __get_cpu_var(nmi_touch) = 0; touched = 1; @@ -125,6 +129,8 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) pcr_ops->write(pcr_enable); } + restore_hardirq_stack(orig_sp); + nmi_exit(); } |