Commit-ID: 83112e688f5f05dea1e63787db9a6c16b2887a1d Gitweb: http://git.kernel.org/tip/83112e688f5f05dea1e63787db9a6c16b2887a1d Author: Andre Przywara <andre.przywara@xxxxxxx> AuthorDate: Sat, 16 Apr 2011 02:27:53 +0200 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Tue, 19 Apr 2011 10:07:54 +0200 perf, x86: Fix pre-defined cache-misses event for AMD family 15h cpus With AMD cpu family 15h a unit mask was introduced for the Data Cache Miss event (0x041/L1-dcache-load-misses). We need to enable bit 0 (first data cache miss or streaming store to a 64 B cache line) of this mask to proper count data cache misses. Now we set this bit for all families and models. In case a PMU does not implement a unit mask for event 0x041 the bit is ignored. Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx> Signed-off-by: Robert Richter <robert.richter@xxxxxxx> Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> Link: http://lkml.kernel.org/r/1302913676-14352-2-git-send-email-robert.richter@xxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- arch/x86/kernel/cpu/perf_event_amd.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c index 461f62b..4e16138 100644 --- a/arch/x86/kernel/cpu/perf_event_amd.c +++ b/arch/x86/kernel/cpu/perf_event_amd.c @@ -8,7 +8,7 @@ static __initconst const u64 amd_hw_cache_event_ids [ C(L1D) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x0040, /* Data Cache Accesses */ - [ C(RESULT_MISS) ] = 0x0041, /* Data Cache Misses */ + [ C(RESULT_MISS) ] = 0x0141, /* Data Cache Misses */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x0142, /* Data Cache Refills :system */ -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html