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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-05-07 11:29:25 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-05-07 11:29:25 +1000 |
| commit | 1ed31d6db90d51010545921e59d369d2f92b7ac2 (patch) | |
| tree | 358a0b346bc8135cd5e53700eb44308b1a7c8c5b /arch/sparc/kernel/nmi.c | |
| parent | ceba1abcb00b0ef0b1efcd715285f6e05523edef (diff) | |
| parent | 722154e4cacf015161efe60009ae9be23d492296 (diff) | |
| download | kernel_samsung_crespo-1ed31d6db90d51010545921e59d369d2f92b7ac2.zip kernel_samsung_crespo-1ed31d6db90d51010545921e59d369d2f92b7ac2.tar.gz kernel_samsung_crespo-1ed31d6db90d51010545921e59d369d2f92b7ac2.tar.bz2 | |
Merge commit 'origin/master' into next
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 b287b62..a4bd7ba 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(); } |