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Subject[PATCH 19/49] 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 4d9dd83c..b68d38a 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2613,6 +2613,14 @@ 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,
@@ -2640,6 +2648,8 @@ 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 84d629d..5759f96 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -900,6 +900,7 @@ struct x86_pmu {
*/
unsigned long hybrid_pmu_bitmap;
struct x86_hybrid_pmu hybrid_pmu[X86_HYBRID_PMU_MAX_INDEX];
+ int (*filter_match)(struct perf_event *event);
};

struct x86_perf_task_context_opt {
--
2.7.4
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