linux-kernel - [PATCH] perf_events: remove bogus Intel Core constraint on ITLB_MISS

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Date:	Thu, 11 Mar 2010 12:59:28 -0800
From:	eranian@...gle.com
To:	linux-kernel@...r.kernel.org
Cc:	peterz@...radead.org, mingo@...e.hu, paulus@...ba.org,
	fweisbec@...il.com, robert.richter@....com, davem@...emloft.net,
	perfmon2-devel@...ts.sf.net
Subject: [PATCH] perf_events: remove bogus Intel Core constraint on ITLB_MISS_RETIRED

Contrary to what Vol3b section 30.4.3 leads to believe, there is
no constraint on ITLB_MISS_RETIRED on Intel Core-based CPU, so
remove it.

	Signed-off-by: Stephane Eranian <eranian@...gle.com>
--
 perf_event_intel.c |    1 -
 1 file changed, 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 971dc6e..58e83cd 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -43,7 +43,6 @@ static struct event_constraint intel_core2_event_constraints[] =
 	INTEL_EVENT_CONSTRAINT(0x18, 0x1), /* IDLE_DURING_DIV */
 	INTEL_EVENT_CONSTRAINT(0x19, 0x2), /* DELAYED_BYPASS */
 	INTEL_EVENT_CONSTRAINT(0xa1, 0x1), /* RS_UOPS_DISPATCH_CYCLES */
-	INTEL_EVENT_CONSTRAINT(0xc9, 0x1), /* ITLB_MISS_RETIRED (T30-9) */
 	INTEL_EVENT_CONSTRAINT(0xcb, 0x1), /* MEM_LOAD_RETIRED */
 	EVENT_CONSTRAINT_END
 };
--
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