1 files changed, 47 insertions, 1 deletions

diff --git a/tools/perf/arch/x86/util/topdown.c b/tools/perf/arch/x86/util/topdown.c
index 3f9a267d4501..49f25d67ed77 100644
--- a/tools/perf/arch/x86/util/topdown.c
+++ b/tools/perf/arch/x86/util/topdown.c
@@ -32,6 +32,52 @@ bool topdown_sys_has_perf_metrics(void)
 }
 
 #define TOPDOWN_SLOTS		0x0400
+bool arch_is_topdown_slots(const struct evsel *evsel)
+{
+	if (evsel->core.attr.config == TOPDOWN_SLOTS)
+		return true;
+
+	return false;
+}
+
+static int compare_topdown_event(void *vstate, struct pmu_event_info *info)
+{
+	int *config = vstate;
+	int event = 0;
+	int umask = 0;
+	char *str;
+
+	if (!strcasestr(info->name, "topdown"))
+		return 0;
+
+	str = strcasestr(info->str, "event=");
+	if (str)
+		sscanf(str, "event=%x", &event);
+
+	str = strcasestr(info->str, "umask=");
+	if (str)
+		sscanf(str, "umask=%x", &umask);
+
+	if (event == 0 && *config == (event | umask << 8))
+		return 1;
+
+	return 0;
+}
+
+bool arch_is_topdown_metrics(const struct evsel *evsel)
+{
+	struct perf_pmu *pmu = evsel__find_pmu(evsel);
+	int config = evsel->core.attr.config;
+
+	if (!pmu || !pmu->is_core)
+		return false;
+
+	if (perf_pmu__for_each_event(pmu, false, &config,
+				     compare_topdown_event))
+		return true;
+
+	return false;
+}
 
 /*
  * Check whether a topdown group supports sample-read.
@@ -44,7 +90,7 @@ bool arch_topdown_sample_read(struct evsel *leader)
 	if (!evsel__sys_has_perf_metrics(leader))
 		return false;
 
-	if (leader->core.attr.config == TOPDOWN_SLOTS)
+	if (arch_is_topdown_slots(leader))
 		return true;
 
 	return false;