From: Alexey Budankov <alexey.budankov@linux.intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Ingo Molnar <mingo@redhat.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Andi Kleen <ak@linux.intel.com>,
Kan Liang <kan.liang@linux.intel.com>,
Stephane Eranian <eranian@google.com>,
Ian Rogers <irogers@google.com>, Song Liu <songliubraving@fb.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: [PATCH v2 2/4] perf/x86: install platform specific sync_task_ctx adapter
Date: Wed, 16 Oct 2019 12:49:44 +0300 [thread overview]
Message-ID: <32754937-d7a6-8121-fce3-81a71d26fac4@linux.intel.com> (raw)
In-Reply-To: <5964c7e9-ab6f-c0d0-3dca-31196606e337@linux.intel.com>
Bridge perf core and x86 sync_task_ctx() method calls.
Signed-off-by: Alexey Budankov <alexey.budankov@linux.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
next prev parent reply other threads:[~2019-10-16 9:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-16 9:41 [PATCH v2 0/4]: perf/core: fix restoring of Intel LBR call stack on a context switch Alexey Budankov
2019-10-16 9:48 ` [PATCH v2 1/4] perf/core,x86: introduce sync_task_ctx() method at struct pmu Alexey Budankov
2019-10-16 9:49 ` Alexey Budankov [this message]
2019-10-16 9:50 ` [PATCH v2 3/4] perf/x86/intel: implement LBR callstacks context synchronization Alexey Budankov
2019-10-16 12:20 ` Liang, Kan
2019-10-16 13:39 ` Alexey Budankov
2019-10-16 14:07 ` Alexey Budankov
2019-10-16 9:51 ` [PATCH v2 4/4] perf/core,x86: synchronize PMU task contexts on optimized context switches Alexey Budankov
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