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    Subject[PATCH 5.4 006/411] perf/x86/intel: Fix event constraints for ICL
    Date
    From: Kan Liang <kan.liang@linux.intel.com>

    commit 86dca369075b3e310c3c0adb0f81e513c562b5e4 upstream.

    According to the latest event list, the event encoding 0x55
    INST_DECODED.DECODERS and 0x56 UOPS_DECODED.DEC0 are only available on
    the first 4 counters. Add them into the event constraints table.

    Fixes: 6017608936c1 ("perf/x86/intel: Add Icelake support")
    Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
    Signed-off-by: Ingo Molnar <mingo@kernel.org>
    Acked-by: Peter Zijlstra <peterz@infradead.org>
    Cc: stable@vger.kernel.org
    Link: https://lore.kernel.org/r/20220525133952.1660658-1-kan.liang@linux.intel.com
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    arch/x86/events/intel/core.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/arch/x86/events/intel/core.c
    +++ b/arch/x86/events/intel/core.c
    @@ -250,7 +250,7 @@ static struct event_constraint intel_icl
    INTEL_EVENT_CONSTRAINT_RANGE(0x03, 0x0a, 0xf),
    INTEL_EVENT_CONSTRAINT_RANGE(0x1f, 0x28, 0xf),
    INTEL_EVENT_CONSTRAINT(0x32, 0xf), /* SW_PREFETCH_ACCESS.* */
    - INTEL_EVENT_CONSTRAINT_RANGE(0x48, 0x54, 0xf),
    + INTEL_EVENT_CONSTRAINT_RANGE(0x48, 0x56, 0xf),
    INTEL_EVENT_CONSTRAINT_RANGE(0x60, 0x8b, 0xf),
    INTEL_UEVENT_CONSTRAINT(0x04a3, 0xff), /* CYCLE_ACTIVITY.STALLS_TOTAL */
    INTEL_UEVENT_CONSTRAINT(0x10a3, 0xff), /* CYCLE_ACTIVITY.CYCLES_MEM_ANY */

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