linux-kernel - [PATCH v2 2/4] perf/x86: install platform specific sync_task

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Date:   Wed, 16 Oct 2019 12:49:44 +0300
From:   Alexey Budankov <alexey.budankov@...ux.intel.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Ingo Molnar <mingo@...hat.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Andi Kleen <ak@...ux.intel.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Stephane Eranian <eranian@...gle.com>,
        Ian Rogers <irogers@...gle.com>,
        Song Liu <songliubraving@...com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 2/4] perf/x86: install platform specific sync_task_ctx
 adapter


Bridge perf core and x86 sync_task_ctx() method calls.

Signed-off-by: Alexey Budankov <alexey.budankov@...ux.intel.com>
---
 arch/x86/events/core.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 15b90b1a8fb1..2c293bbd093f 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2243,6 +2243,12 @@ static void x86_pmu_sched_task(struct perf_event_context *ctx, bool sched_in)
 		x86_pmu.sched_task(ctx, sched_in);
 }
 
+static void x86_pmu_sync_task_ctx(void *one, void *another)
+{
+	if (x86_pmu.sync_task_ctx)
+		x86_pmu.sync_task_ctx(one, another);
+}
+
 void perf_check_microcode(void)
 {
 	if (x86_pmu.check_microcode)
@@ -2297,6 +2303,7 @@ static struct pmu pmu = {
 	.event_idx		= x86_pmu_event_idx,
 	.sched_task		= x86_pmu_sched_task,
 	.task_ctx_size          = sizeof(struct x86_perf_task_context),
+	.sync_task_ctx		= x86_pmu_sync_task_ctx,
 	.check_period		= x86_pmu_check_period,
 
 	.aux_output_match	= x86_pmu_aux_output_match,
-- 
2.20.1