diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-12-17 13:09:20 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-23 12:45:12 +0100 |
| commit | 862a1a5f346fe7e9181ea51eaae48cf2cd70f746 (patch) | |
| tree | 6c38478c3197ae842a3fa8ebc1623bc8d3fde6a4 /arch/x86/include | |
| parent | perfcounters: add fixed-mode PMC enumeration (diff) | |
| download | linux-862a1a5f346fe7e9181ea51eaae48cf2cd70f746.tar.xz linux-862a1a5f346fe7e9181ea51eaae48cf2cd70f746.zip | |
x86, perfcounters: refactor code for fixed-function PMCs
Impact: clean up
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/perf_counter.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/x86/include/asm/perf_counter.h b/arch/x86/include/asm/perf_counter.h index 945a315e6d62..13745deb16c8 100644 --- a/arch/x86/include/asm/perf_counter.h +++ b/arch/x86/include/asm/perf_counter.h @@ -8,6 +8,10 @@ #define X86_PMC_MAX_GENERIC 8 #define X86_PMC_MAX_FIXED 3 +#define X86_PMC_IDX_GENERIC 0 +#define X86_PMC_IDX_FIXED 32 +#define X86_PMC_IDX_MAX 64 + #define MSR_ARCH_PERFMON_PERFCTR0 0xc1 #define MSR_ARCH_PERFMON_PERFCTR1 0xc2 @@ -54,6 +58,15 @@ union cpuid10_edx { * Fixed-purpose performance counters: */ +/* + * All 3 fixed-mode PMCs are configured via this single MSR: + */ +#define MSR_ARCH_PERFMON_FIXED_CTR_CTRL 0x38d + +/* + * The counts are available in three separate MSRs: + */ + /* Instr_Retired.Any: */ #define MSR_ARCH_PERFMON_FIXED_CTR0 0x309 @@ -63,7 +76,6 @@ union cpuid10_edx { /* CPU_CLK_Unhalted.Ref: */ #define MSR_ARCH_PERFMON_FIXED_CTR2 0x30b - #ifdef CONFIG_PERF_COUNTERS extern void init_hw_perf_counters(void); extern void perf_counters_lapic_init(int nmi); |