perf/x86: Support filter_match callback

Implement filter_match callback for X86, which check whether an event is
schedulable on the current CPU.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Link: https://lkml.kernel.org/r/1618237865-33448-20-git-send-email-kan.liang@linux.intel.com

diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 37ab109..4f6595e 100644 (file)
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2641,6 +2641,14 @@ static int x86_pmu_aux_output_match(struct perf_event *event)
        return 0;
 }
 
+static int x86_pmu_filter_match(struct perf_event *event)
+{
+       if (x86_pmu.filter_match)
+               return x86_pmu.filter_match(event);
+
+       return 1;
+}
+
 static struct pmu pmu = {
        .pmu_enable             = x86_pmu_enable,
        .pmu_disable            = x86_pmu_disable,
@@ -2668,6 +2676,8 @@ static struct pmu pmu = {
        .check_period           = x86_pmu_check_period,
 
        .aux_output_match       = x86_pmu_aux_output_match,
+
+       .filter_match           = x86_pmu_filter_match,
 };
 
 void arch_perf_update_userpage(struct perf_event *event,

diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index e2be927..606fb6e 100644 (file)
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -879,6 +879,7 @@ struct x86_pmu {
 
        int (*aux_output_match) (struct perf_event *event);
 
+       int (*filter_match)(struct perf_event *event);
        /*
         * Hybrid support
         *