[PATCH 5.15 183/279] perf/x86/intel/uncore: Fix IIO event constraints for Skylake Server

Greg Kroah-Hartman
2021-11-24T13:57:28Z

From: Alexander Antonov <alexander.antonov@linux.intel.com>

[ Upstream commit 3866ae319c846a612109c008f43cba80b8c15e86 ]

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@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20211115090334.3789-3-alexander.antonov@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 e5ee6bb62ef50..9aba4ef77b13b 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
};

--
2.33.0