linux-kernel - [PATCH] perf/x86/intel: Update event constraints for ICX

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Date:   Tue, 28 Sep 2021 08:19:03 -0700
From:   kan.liang@...ux.intel.com
To:     peterz@...radead.org
Cc:     linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH] perf/x86/intel: Update event constraints for ICX

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

According to the latest event list, the event encoding 0xEF is only
available on the first 4 counters. Add it into the event constraints
table.

Fixes: 6017608936c1 ("perf/x86/intel: Add Icelake support")
Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
---
 arch/x86/events/intel/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 7011e87..9a04443 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -263,6 +263,7 @@ static struct event_constraint intel_icl_event_constraints[] = {
 	INTEL_EVENT_CONSTRAINT_RANGE(0xa8, 0xb0, 0xf),
 	INTEL_EVENT_CONSTRAINT_RANGE(0xb7, 0xbd, 0xf),
 	INTEL_EVENT_CONSTRAINT_RANGE(0xd0, 0xe6, 0xf),
+	INTEL_EVENT_CONSTRAINT(0xef, 0xf),
 	INTEL_EVENT_CONSTRAINT_RANGE(0xf0, 0xf4, 0xf),
 	EVENT_CONSTRAINT_END
 };
-- 
2.7.4