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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-04-20 16:20:55 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-04-20 16:20:55 (GMT) |
| commit | ac8bf564307962a763a52b34e771205c58b76ec8 (patch) | |
| tree | 851fe4ebd22cca979744dace54a8d628143bbc4b /arch/sparc/kernel/nmi.c | |
| parent | 34388d1c4feae50d61d6f4ec7594b9076d6d24db (diff) | |
| parent | 28a1f533ae8606020238b840b82ae70a3f87609e (diff) | |
| download | linux-ac8bf564307962a763a52b34e771205c58b76ec8.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Fix hardirq tracing in trap return path.
sparc64: Use correct pt_regs in decode_access_size() error paths.
sparc64: Fix PREEMPT_ACTIVE value.
sparc64: Run NMIs on the hardirq stack.
sparc64: Allocate sufficient stack space in ftrace stubs.
sparc: Fix forgotten kmemleak headers inclusion
Diffstat (limited to 'arch/sparc/kernel/nmi.c')
| -rw-r--r-- | arch/sparc/kernel/nmi.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c index 75a3d1a..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. @@ -92,6 +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; + void *orig_sp; clear_softint(1 << irq); @@ -99,6 +102,8 @@ 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; @@ -124,6 +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(); } |