From: Stephane Eranian Date: Sat, 10 Dec 2011 23:28:53 +0000 (+0100) Subject: perf events: Add Intel x86 mapping for PERF_COUNT_HW_REF_CPU_CYCLES X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9c1497ea591b25d491f8e795f90a1405100b75ef;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git perf events: Add Intel x86 mapping for PERF_COUNT_HW_REF_CPU_CYCLES Add event maps for Intel x86 processors (with architected PMU v2 or later). On AMD, there is frequency scaling but no Turbo. There is no core cycle event not subject to frequency scaling, therefore we do not provide a mapping. Signed-off-by: Stephane Eranian Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1323559734-3488-4-git-send-email-eranian@google.com Signed-off-by: Ingo Molnar --- diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c index 61f865f947b3..cbfaaa2475ea 100644 --- a/arch/x86/kernel/cpu/perf_event_intel.c +++ b/arch/x86/kernel/cpu/perf_event_intel.c @@ -28,6 +28,7 @@ static u64 intel_perfmon_event_map[PERF_COUNT_HW_MAX] __read_mostly = [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4, [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5, [PERF_COUNT_HW_BUS_CYCLES] = 0x013c, + [PERF_COUNT_HW_REF_CPU_CYCLES] = 0x0300, /* pseudo-encoding */ }; static struct event_constraint intel_core_event_constraints[] __read_mostly =