linux-kernel - [PATCH] perf events, powerpc: Add POWER7 stalled-cycles-frontend/backend events

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Date:	Tue, 30 Aug 2011 10:13:41 +0530
From:	Anshuman Khandual <khandual@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	Paul Mackerras <paulus@...ba.org>
Subject: [PATCH] perf events, powerpc: Add POWER7 stalled-cycles-frontend/backend
 events

perf events, powerpc: Add POWER7 stalled-cycles-frontend/backend events

	Extent the POWER7 PMU driver with definitions
	for generic front-end and back-end stall events.

Signed-off-by: Anshuman Khandual <khandual@...ux.vnet.ibm.com>

diff --git a/arch/powerpc/kernel/power7-pmu.c b/arch/powerpc/kernel/power7-pmu.c
index 593740f..e5d2844 100644
--- a/arch/powerpc/kernel/power7-pmu.c
+++ b/arch/powerpc/kernel/power7-pmu.c
@@ -297,6 +297,8 @@ static void power7_disable_pmc(unsigned int pmc, unsigned long mmcr[])
 
 static int power7_generic_events[] = {
 	[PERF_COUNT_HW_CPU_CYCLES] = 0x1e,
+	[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x100f8, /* GCT_NOSLOT_CYC */
+	[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x4000a,  /* CMPLU_STALL */
 	[PERF_COUNT_HW_INSTRUCTIONS] = 2,
 	[PERF_COUNT_HW_CACHE_REFERENCES] = 0xc880,	/* LD_REF_L1_LSU*/
 	[PERF_COUNT_HW_CACHE_MISSES] = 0x400f0,		/* LD_MISS_L1	*/

-- 
Anshuman Khandual 


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