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powerpc/perf: Add stalled-cycles events

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Support for stalled-cycles-frontend and stalled-cycles-backend is
added for e500-based processors.

The following mappings are used:

stalled-cycles-frontend or idle-cycles-frontend:
Com:18 Cycles decode stalled

stalled-cycles-backend or idle-cycles-backend
Com:19 cycles issue stalled

Signed-off-by: Chris Freehill <chrisf@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Chris Freehill 2012-12-05 12:32:46 +00:00 committed by Benjamin Herrenschmidt
parent fe3955cb29
commit 15fab56eca
1 changed files with 2 additions and 0 deletions
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2
arch/powerpc/perf/e500-pmu.c
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@ -24,6 +24,8 @@ static int e500_generic_events[] = {
[PERF_COUNT_HW_CACHE_MISSES] = 41, /* Data L1 cache reloads */
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 12,
[PERF_COUNT_HW_BRANCH_MISSES] = 15,
[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 18,
[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 19,
};
#define C(x) PERF_COUNT_HW_CACHE_##x