Commit f64ccccb authored Aug 11, 2009 by Ingo Molnar

perf_counter, x86: Fix generic cache events on P6-mobile CPUs



Johannes Stezenbach reported that 'perf stat' does not count
cache-miss and cache-references events on his Pentium-M based
laptop.

This is because we left them blank in p6_perfmon_event_map[],
fill them in.

Reported-by: Johannes Stezenbach <js@sig21.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 3c581a7f

arch/x86/kernel/cpu/perf_counter.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -72,8 +72,8 @@ static const u64 p6_perfmon_event_map[] =
		{
		[PERF_COUNT_HW_CPU_CYCLES] = 0x0079,
		[PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
		[PERF_COUNT_HW_CACHE_REFERENCES] = 0x0000,
		[PERF_COUNT_HW_CACHE_MISSES] = 0x0000,
		[PERF_COUNT_HW_CACHE_REFERENCES] = 0x0f2e,
		[PERF_COUNT_HW_CACHE_MISSES] = 0x012e,
		[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4,
		[PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5,
		[PERF_COUNT_HW_BUS_CYCLES] = 0x0062,

Admin message