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Subject[PATCH V5 19/25] perf/x86: Support filter_match callback
Date
From: Kan Liang <kan.liang@linux.intel.com>

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

Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
---
arch/x86/events/core.c | 10 ++++++++++
arch/x86/events/perf_event.h | 1 +
2 files changed, 11 insertions(+)

diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 16b4f6f..09922ee 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2650,6 +2650,14 @@ 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,
@@ -2677,6 +2685,8 @@ 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 c1c90c3..f996686 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -870,6 +870,7 @@ struct x86_pmu {

int (*aux_output_match) (struct perf_event *event);

+ int (*filter_match)(struct perf_event *event);
/*
* Hybrid support
*
--
2.7.4
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