diff options
| author | Andi Kleen <andi@firstfloor.org> | 2009-05-27 21:56:52 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-06-03 14:40:38 -0700 |
| commit | 01ca79f1411eae2a45352709c838b946b1af9fbd (patch) | |
| tree | 6ee0f5306363f112c6c417c0db85b6d81753f5f8 /arch/x86/include/asm/mce.h | |
| parent | 48b1fddbb100a64f3983ca9768b8ea629a09aa20 (diff) | |
| download | lwn-01ca79f1411eae2a45352709c838b946b1af9fbd.tar.gz lwn-01ca79f1411eae2a45352709c838b946b1af9fbd.zip | |
x86, mce: add machine check exception count in /proc/interrupts
Useful for debugging, but it's also good general policy
to have a counter for all special interrupts there. This makes it easier
to diagnose where a CPU is spending its time.
[ Impact: feature, debugging tool ]
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/include/asm/mce.h')
| -rw-r--r-- | arch/x86/include/asm/mce.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index ac6e0303bf21..1156dae295ac 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -89,6 +89,7 @@ struct mce_log { extern int mce_disabled; #include <asm/atomic.h> +#include <linux/percpu.h> void mce_setup(struct mce *m); void mce_log(struct mce *m); @@ -123,6 +124,8 @@ static inline void mce_amd_feature_init(struct cpuinfo_x86 *c) { } int mce_available(struct cpuinfo_x86 *c); +DECLARE_PER_CPU(unsigned, mce_exception_count); + void mce_log_therm_throt_event(__u64 status); extern atomic_t mce_entry; |