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    Subject[PATCH 5.15 184/279] perf/x86/intel/uncore: Fix IIO event constraints for Snowridge
    Date
    From: Alexander Antonov <alexander.antonov@linux.intel.com>

    [ Upstream commit bdc0feee05174418dec1fa68de2af19e1750b99f ]

    According to the latest uncore document, DATA_REQ_OF_CPU (0x83),
    DATA_REQ_BY_CPU (0xc0) and COMP_BUF_OCCUPANCY (0xd5) events have
    constraints. Add uncore IIO constraints for Snowridge.

    Fixes: 210cc5f9db7a ("perf/x86/intel/uncore: Add uncore support for Snow Ridge server")
    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/20211115090334.3789-4-alexander.antonov@linux.intel.com
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    arch/x86/events/intel/uncore_snbep.c | 8 ++++++++
    1 file changed, 8 insertions(+)

    diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
    index 9aba4ef77b13b..3660f698fb2aa 100644
    --- a/arch/x86/events/intel/uncore_snbep.c
    +++ b/arch/x86/events/intel/uncore_snbep.c
    @@ -4529,6 +4529,13 @@ static void snr_iio_cleanup_mapping(struct intel_uncore_type *type)
    pmu_iio_cleanup_mapping(type, &snr_iio_mapping_group);
    }

    +static struct event_constraint snr_uncore_iio_constraints[] = {
    + UNCORE_EVENT_CONSTRAINT(0x83, 0x3),
    + UNCORE_EVENT_CONSTRAINT(0xc0, 0xc),
    + UNCORE_EVENT_CONSTRAINT(0xd5, 0xc),
    + EVENT_CONSTRAINT_END
    +};
    +
    static struct intel_uncore_type snr_uncore_iio = {
    .name = "iio",
    .num_counters = 4,
    @@ -4540,6 +4547,7 @@ static struct intel_uncore_type snr_uncore_iio = {
    .event_mask_ext = SNR_IIO_PMON_RAW_EVENT_MASK_EXT,
    .box_ctl = SNR_IIO_MSR_PMON_BOX_CTL,
    .msr_offset = SNR_IIO_MSR_OFFSET,
    + .constraints = snr_uncore_iio_constraints,
    .ops = &ivbep_uncore_msr_ops,
    .format_group = &snr_uncore_iio_format_group,
    .attr_update = snr_iio_attr_update,
    --
    2.33.0


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