linux-kernel - [tip: perf/urgent] perf/x86/intel/uncore: Fix IIO event constraints for Skylake Server

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Date:   Wed, 17 Nov 2021 13:59:53 -0000
From:   "tip-bot2 for Alexander Antonov" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Alexander Antonov <alexander.antonov@...ux.intel.com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Kan Liang <kan.liang@...ux.intel.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: perf/urgent] perf/x86/intel/uncore: Fix IIO event constraints
 for Skylake Server

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

Commit-ID:     3866ae319c846a612109c008f43cba80b8c15e86
Gitweb:        https://git.kernel.org/tip/3866ae319c846a612109c008f43cba80b8c15e86
Author:        Alexander Antonov <alexander.antonov@...ux.intel.com>
AuthorDate:    Mon, 15 Nov 2021 12:03:33 +03:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Wed, 17 Nov 2021 14:48:43 +01:00

perf/x86/intel/uncore: Fix IIO event constraints for Skylake Server

According to the latest uncore document, COMP_BUF_OCCUPANCY (0xd5) event
can be collected on 2-3 counters. Update uncore IIO event constraints for
Skylake Server.

Fixes: cd34cd97b7b4 ("perf/x86/intel/uncore: Add Skylake server uncore support")
Signed-off-by: Alexander Antonov <alexander.antonov@...ux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Reviewed-by: Kan Liang <kan.liang@...ux.intel.com>
Link: https://lore.kernel.org/r/20211115090334.3789-3-alexander.antonov@linux.intel.com
---
 arch/x86/events/intel/uncore_snbep.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index e5ee6bb..9aba4ef 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -3678,6 +3678,7 @@ static struct event_constraint skx_uncore_iio_constraints[] = {
 	UNCORE_EVENT_CONSTRAINT(0xc0, 0xc),
 	UNCORE_EVENT_CONSTRAINT(0xc5, 0xc),
 	UNCORE_EVENT_CONSTRAINT(0xd4, 0xc),
+	UNCORE_EVENT_CONSTRAINT(0xd5, 0xc),
 	EVENT_CONSTRAINT_END
 };