From f287d332ce835f77a4f5077d2c0ef1e3f9ea42d2 Mon Sep 17 00:00:00 2001 From: Vince Weaver Date: Thu, 1 Jul 2010 15:30:16 -0400 Subject: [PATCH] perf, x86: Fix incorrect branches event on AMD CPUs While doing some performance counter validation tests on some assembly language programs I noticed that the "branches:u" count was very wrong on AMD machines. It looks like the wrong event was selected. Signed-off-by: Vince Weaver Acked-by: Peter Zijlstra Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Robert Richter Cc: Borislav Petkov Cc: Frederic Weisbecker Cc: LKML-Reference: Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/perf_event_amd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c index 611df11ba15..c2897b7b4a3 100644 --- a/arch/x86/kernel/cpu/perf_event_amd.c +++ b/arch/x86/kernel/cpu/perf_event_amd.c @@ -102,8 +102,8 @@ static const u64 amd_perfmon_event_map[] = [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0080, [PERF_COUNT_HW_CACHE_MISSES] = 0x0081, - [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4, - [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5, + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2, + [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3, }; static u64 amd_pmu_event_map(int hw_event) -- 2.39.3