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From: Stephane Eranian <eranian@google.com>
To: linux-kernel@vger.kernel.org
Cc: peterz@infradead.org, mingo@elte.hu, dzickus@redhat.com,
	ak@linux.intel.com, jolsa@redhat.com
Subject: [PATCH] perf,x86: fix broken PEBS-LL support on SNB-EP/IVB-EP
Date: Fri, 7 Jun 2013 23:22:10 +0200	[thread overview]
Message-ID: <20130607212210.GA11849@quad> (raw)


This patch fixes broken support of PEBS-LL on SNB-EP/IVB-EP.
For some reason, the LDLAT extra reg definition for snb_ep
showed up as duplicate in the snb table.

This patch moves the definition of LDLAT back into the
snb_ep table.

Thanks to Don Zickus for tracking this one down.

Signed-off-by: Stephane Eranian <eranian@google.com>
---

diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index f60d41f..a9e2207 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -165,13 +165,13 @@ static struct extra_reg intel_snb_extra_regs[] __read_mostly = {
 	INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0x3f807f8fffull, RSP_0),
 	INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0x3f807f8fffull, RSP_1),
 	INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd),
-	INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd),
 	EVENT_EXTRA_END
 };
 
 static struct extra_reg intel_snbep_extra_regs[] __read_mostly = {
 	INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0x3fffff8fffull, RSP_0),
 	INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0x3fffff8fffull, RSP_1),
+	INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd),
 	EVENT_EXTRA_END
 };
 

             reply	other threads:[~2013-06-07 21:22 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-07 21:22 Stephane Eranian [this message]
2013-06-18  9:09 ` [PATCH] perf,x86: fix broken PEBS-LL support on SNB-EP/IVB-EP Peter Zijlstra
2013-06-19 18:38 ` [tip:perf/core] perf/x86: Fix broken PEBS-LL support on SNB-EP/ IVB-EP tip-bot for Stephane Eranian

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