linux-kernel - [tip: perf/core] perf/x86/intel: Add event constraint for CYCLE_ACTIVITY.STALLS_MEM

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Message-ID: <160396869773.397.6435807847521409209.tip-bot2@tip-bot2>
Date:   Thu, 29 Oct 2020 10:51:37 -0000
From:   "tip-bot2 for Kan Liang" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Andi Kleen <ak@...ux.intel.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        stable@...r.kernel.org, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: perf/core] perf/x86/intel: Add event constraint for
 CYCLE_ACTIVITY.STALLS_MEM_ANY

The following commit has been merged into the perf/core branch of tip:

Commit-ID:     306e3e91edf1c6739a55312edd110d298ff498dd
Gitweb:        https://git.kernel.org/tip/306e3e91edf1c6739a55312edd110d298ff498dd
Author:        Kan Liang <kan.liang@...ux.intel.com>
AuthorDate:    Mon, 19 Oct 2020 09:45:29 -07:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Thu, 29 Oct 2020 11:00:41 +01:00

perf/x86/intel: Add event constraint for CYCLE_ACTIVITY.STALLS_MEM_ANY

The event CYCLE_ACTIVITY.STALLS_MEM_ANY (0x14a3) should be available on
all 8 GP counters on ICL, but it's only scheduled on the first four
counters due to the current ICL constraint table.

Add a line for the CYCLE_ACTIVITY.STALLS_MEM_ANY event in the ICL
constraint table.
Correct the comments for the CYCLE_ACTIVITY.CYCLES_MEM_ANY event.

Fixes: 6017608936c1 ("perf/x86/intel: Add Icelake support")
Reported-by: Andi Kleen <ak@...ux.intel.com>
Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: stable@...r.kernel.org
Link: https://lkml.kernel.org/r/20201019164529.32154-1-kan.liang@linux.intel.com
---
 arch/x86/events/intel/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 4d70c7d..0e590c5 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -257,7 +257,8 @@ static struct event_constraint intel_icl_event_constraints[] = {
 	INTEL_EVENT_CONSTRAINT_RANGE(0x48, 0x54, 0xf),
 	INTEL_EVENT_CONSTRAINT_RANGE(0x60, 0x8b, 0xf),
 	INTEL_UEVENT_CONSTRAINT(0x04a3, 0xff),  /* CYCLE_ACTIVITY.STALLS_TOTAL */
-	INTEL_UEVENT_CONSTRAINT(0x10a3, 0xff),  /* CYCLE_ACTIVITY.STALLS_MEM_ANY */
+	INTEL_UEVENT_CONSTRAINT(0x10a3, 0xff),  /* CYCLE_ACTIVITY.CYCLES_MEM_ANY */
+	INTEL_UEVENT_CONSTRAINT(0x14a3, 0xff),  /* CYCLE_ACTIVITY.STALLS_MEM_ANY */
 	INTEL_EVENT_CONSTRAINT(0xa3, 0xf),      /* CYCLE_ACTIVITY.* */
 	INTEL_EVENT_CONSTRAINT_RANGE(0xa8, 0xb0, 0xf),
 	INTEL_EVENT_CONSTRAINT_RANGE(0xb7, 0xbd, 0xf),