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From: kan.liang@linux.intel.com
To: peterz@infradead.org, mingo@redhat.com, linux-kernel@vger.kernel.org
Cc: eranian@google.com, Kan Liang <kan.liang@linux.intel.com>,
	stable@vger.kernel.org
Subject: [PATCH] perf/x86/intel: Update the FRONTEND MSR mask on Sapphire Rapids
Date: Mon, 28 Mar 2022 08:49:03 -0700	[thread overview]
Message-ID: <1648482543-14923-2-git-send-email-kan.liang@linux.intel.com> (raw)
In-Reply-To: <1648482543-14923-1-git-send-email-kan.liang@linux.intel.com>

From: Kan Liang <kan.liang@linux.intel.com>

On Sapphire Rapids, the FRONTEND_RETIRED.MS_FLOWS event requires the
FRONTEND MSR value 0x8. However, the current FRONTEND MSR mask doesn't
support it.

Update intel_spr_extra_regs[] to support it.

Fixes: 61b985e3e775 ("perf/x86/intel: Add perf core PMU support for Sapphire Rapids")
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Cc: stable@vger.kernel.org
---
 arch/x86/events/intel/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 696d036..db32ef6 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -282,7 +282,7 @@ static struct extra_reg intel_spr_extra_regs[] __read_mostly = {
 	INTEL_UEVENT_EXTRA_REG(0x012a, MSR_OFFCORE_RSP_0, 0x3fffffffffull, RSP_0),
 	INTEL_UEVENT_EXTRA_REG(0x012b, MSR_OFFCORE_RSP_1, 0x3fffffffffull, RSP_1),
 	INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd),
-	INTEL_UEVENT_EXTRA_REG(0x01c6, MSR_PEBS_FRONTEND, 0x7fff17, FE),
+	INTEL_UEVENT_EXTRA_REG(0x01c6, MSR_PEBS_FRONTEND, 0x7fff1f, FE),
 	INTEL_UEVENT_EXTRA_REG(0x40ad, MSR_PEBS_FRONTEND, 0x7, FE),
 	INTEL_UEVENT_EXTRA_REG(0x04c2, MSR_PEBS_FRONTEND, 0x8, FE),
 	EVENT_EXTRA_END
-- 
2.7.4


  reply	other threads:[~2022-03-28 15:50 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-28 15:49 [PATCH] perf/x86/intel: Don't extend the pseudo-encoding to GP counters kan.liang
2022-03-28 15:49 ` kan.liang [this message]
2022-04-05  8:29   ` [tip: perf/urgent] perf/x86/intel: Update the FRONTEND MSR mask on Sapphire Rapids tip-bot2 for Kan Liang
2022-03-28 17:11 ` [PATCH] perf/x86/intel: Don't extend the pseudo-encoding to GP counters Stephane Eranian
2022-03-28 18:30   ` Liang, Kan
2022-04-05  8:29 ` [tip: perf/urgent] " tip-bot2 for Kan Liang

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