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    Subject[PATCH 4.14 233/251] perf/x86/intel/uncore: Fix IIO event constraints for Skylake Server
    Date
    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 9cce6d9fec1f4..b039d416fef34 100644
    --- a/arch/x86/events/intel/uncore_snbep.c
    +++ b/arch/x86/events/intel/uncore_snbep.c
    @@ -3453,6 +3453,7 @@ 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


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