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| author | Russ Anderson <rja@sgi.com> | 2010-02-26 10:49:12 -0600 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-02-27 12:34:21 +0100 |
| commit | 78c06176466cbd1b3f0f67709d3023c40dbebcbd (patch) | |
| tree | 8cb56dc82cd9aa07adcdceeab09a493f717b50d4 /arch/x86/include/asm/uv | |
| parent | 36028f3383872eefb558a4aae4c12ec2b5fa640f (diff) | |
| download | op-kernel-dev-78c06176466cbd1b3f0f67709d3023c40dbebcbd.zip op-kernel-dev-78c06176466cbd1b3f0f67709d3023c40dbebcbd.tar.gz | |
x86: Enable NMI on all cpus on UV
Enable NMI on all cpus in UV system and add an NMI handler
to dump_stack on each cpu.
By default on x86 all the cpus except the boot cpu have NMI
masked off. This patch enables NMI on all cpus in UV system
and adds an NMI handler to dump_stack on each cpu. This
way if a system hangs we can NMI the machine and get a
backtrace from all the cpus.
Version 2: Use x86_platform driver mechanism for nmi init, per
Ingo's suggestion.
Version 3: Clean up Ingo's nits.
Signed-off-by: Russ Anderson <rja@sgi.com>
LKML-Reference: <20100226164912.GA24439@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/uv')
| -rw-r--r-- | arch/x86/include/asm/uv/uv.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h index c0a01b5..3bb9491 100644 --- a/arch/x86/include/asm/uv/uv.h +++ b/arch/x86/include/asm/uv/uv.h @@ -11,6 +11,7 @@ struct mm_struct; extern enum uv_system_type get_uv_system_type(void); extern int is_uv_system(void); extern void uv_cpu_init(void); +extern void uv_nmi_init(void); extern void uv_system_init(void); extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm, |
