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    Subject[PATCH 06/49] perf/x86: Hybrid PMU support for unconstrained
    Date
    From: Kan Liang <kan.liang@linux.intel.com>

    The unconstrained value depends on the number of GP and fixed counters.
    Each hybrid PMU should use its own unconstrained.

    Reviewed-by: Andi Kleen <ak@linux.intel.com>
    Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
    ---
    arch/x86/events/intel/core.c | 5 ++++-
    arch/x86/events/perf_event.h | 1 +
    2 files changed, 5 insertions(+), 1 deletion(-)

    diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
    index 3b8d728..9baa6b6 100644
    --- a/arch/x86/events/intel/core.c
    +++ b/arch/x86/events/intel/core.c
    @@ -3147,7 +3147,10 @@ x86_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
    }
    }

    - return &unconstrained;
    + if (!HAS_VALID_HYBRID_PMU_IN_CPUC(cpuc))
    + return &unconstrained;
    +
    + return &x86_pmu.hybrid_pmu[cpuc->hybrid_pmu_idx].unconstrained;
    }

    static struct event_constraint *
    diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
    index bda4bdc..f11dbc4 100644
    --- a/arch/x86/events/perf_event.h
    +++ b/arch/x86/events/perf_event.h
    @@ -651,6 +651,7 @@ struct x86_hybrid_pmu {
    int max_pebs_events;
    int num_counters;
    int num_counters_fixed;
    + struct event_constraint unconstrained;
    };

    #define IS_X86_HYBRID cpu_feature_enabled(X86_FEATURE_HYBRID_CPU)
    --
    2.7.4
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