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| author | Ingo Molnar <mingo@elte.hu> | 2008-12-17 09:09:13 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-23 12:45:10 +0100 |
| commit | eb2b861810d4ff72454c83996b891df4e0aaff9a (patch) | |
| tree | 9b99f1ec88cd3a248425a6370c700aca2db9b759 /arch/x86/include/asm/perf_counter.h | |
| parent | 5c167b8585c8d91206b395d57011ead7711e322f (diff) | |
| download | linux-rpi3-eb2b861810d4ff72454c83996b891df4e0aaff9a.tar.gz linux-rpi3-eb2b861810d4ff72454c83996b891df4e0aaff9a.tar.bz2 linux-rpi3-eb2b861810d4ff72454c83996b891df4e0aaff9a.zip | |
x86, perfcounters: prepare for fixed-mode PMCs
Impact: refactor the x86 code for fixed-mode PMCs
Extend the data structures and rename the existing facilities
to allow for a 'generic' versus 'fixed' counter distinction.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/perf_counter.h')
| -rw-r--r-- | arch/x86/include/asm/perf_counter.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/include/asm/perf_counter.h b/arch/x86/include/asm/perf_counter.h index 9dadce1124ee..dd5a4a559e2d 100644 --- a/arch/x86/include/asm/perf_counter.h +++ b/arch/x86/include/asm/perf_counter.h @@ -1,6 +1,13 @@ #ifndef _ASM_X86_PERF_COUNTER_H #define _ASM_X86_PERF_COUNTER_H +/* + * Performance counter hw details: + */ + +#define X86_PMC_MAX_GENERIC 8 +#define X86_PMC_MAX_FIXED 3 + #define MSR_ARCH_PERFMON_PERFCTR0 0xc1 #define MSR_ARCH_PERFMON_PERFCTR1 0xc2 @@ -20,6 +27,10 @@ #define ARCH_PERFMON_BRANCH_MISSES_RETIRED 6 +/* + * Intel "Architectural Performance Monitoring" CPUID + * detection/enumeration details: + */ union cpuid10_eax { struct { unsigned int version_id:8; |