linux-kernel - [tip: perf/urgent] perf/x86/intel: Fix event constraints for ICL

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Message-ID: <165348741321.4207.8002435699917268067.tip-bot2@tip-bot2>
Date:   Wed, 25 May 2022 14:03:33 -0000
From:   "tip-bot2 for Kan Liang" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Kan Liang <kan.liang@...ux.intel.com>,
        Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>, stable@...r.kernel.org,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: perf/urgent] perf/x86/intel: Fix event constraints for ICL

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

Commit-ID:     86dca369075b3e310c3c0adb0f81e513c562b5e4
Gitweb:        https://git.kernel.org/tip/86dca369075b3e310c3c0adb0f81e513c562b5e4
Author:        Kan Liang <kan.liang@...ux.intel.com>
AuthorDate:    Wed, 25 May 2022 06:39:52 -07:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Wed, 25 May 2022 15:55:52 +02:00

perf/x86/intel: Fix event constraints for ICL

According to the latest event list, the event encoding 0x55
INST_DECODED.DECODERS and 0x56 UOPS_DECODED.DEC0 are only available on
the first 4 counters. Add them into the event constraints table.

Fixes: 6017608936c1 ("perf/x86/intel: Add Icelake support")
Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Acked-by: Peter Zijlstra <peterz@...radead.org>
Cc: stable@...r.kernel.org
Link: https://lore.kernel.org/r/20220525133952.1660658-1-kan.liang@linux.intel.com
---
 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 955ae91..45024ab 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -276,7 +276,7 @@ static struct event_constraint intel_icl_event_constraints[] = {
 	INTEL_EVENT_CONSTRAINT_RANGE(0x03, 0x0a, 0xf),
 	INTEL_EVENT_CONSTRAINT_RANGE(0x1f, 0x28, 0xf),
 	INTEL_EVENT_CONSTRAINT(0x32, 0xf),	/* SW_PREFETCH_ACCESS.* */
-	INTEL_EVENT_CONSTRAINT_RANGE(0x48, 0x54, 0xf),
+	INTEL_EVENT_CONSTRAINT_RANGE(0x48, 0x56, 0xf),
 	INTEL_EVENT_CONSTRAINT_RANGE(0x60, 0x8b, 0xf),
 	INTEL_UEVENT_CONSTRAINT(0x04a3, 0xff),  /* CYCLE_ACTIVITY.STALLS_TOTAL */
 	INTEL_UEVENT_CONSTRAINT(0x10a3, 0xff),  /* CYCLE_ACTIVITY.CYCLES_MEM_ANY */