diff options
| author | Gleb Natapov <gleb@redhat.com> | 2011-11-10 16:57:26 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-12-06 23:41:05 +0400 |
| commit | ffb871bc9156ee2e5cf442f61250c5bd6aad17e3 (patch) | |
| tree | b69b5201d5ad2e54dedbdc07d4b8de5ac1f22be8 /arch/x86/include/asm/perf_event.h | |
| parent | ac99b862fb98a36929831791da31714f709c2aa8 (diff) | |
| download | linux-ffb871bc9156ee2e5cf442f61250c5bd6aad17e3.tar.xz | |
x86, perf: Disable non available architectural events
Intel CPUs report non-available architectural events in cpuid leaf
0AH.EBX. Use it to disable events that are not available according
to CPU.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1320929850-10480-7-git-send-email-gleb@redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/perf_event.h')
| -rw-r--r-- | arch/x86/include/asm/perf_event.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h index f61c62f7d5d8..c6998bc75456 100644 --- a/arch/x86/include/asm/perf_event.h +++ b/arch/x86/include/asm/perf_event.h @@ -57,6 +57,7 @@ (1 << (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX)) #define ARCH_PERFMON_BRANCH_MISSES_RETIRED 6 +#define ARCH_PERFMON_EVENTS_COUNT 7 /* * Intel "Architectural Performance Monitoring" CPUID @@ -72,6 +73,19 @@ union cpuid10_eax { unsigned int full; }; +union cpuid10_ebx { + struct { + unsigned int no_unhalted_core_cycles:1; + unsigned int no_instructions_retired:1; + unsigned int no_unhalted_reference_cycles:1; + unsigned int no_llc_reference:1; + unsigned int no_llc_misses:1; + unsigned int no_branch_instruction_retired:1; + unsigned int no_branch_misses_retired:1; + } split; + unsigned int full; +}; + union cpuid10_edx { struct { unsigned int num_counters_fixed:5; |