From: Ian Rogers <irogers@google.com>
Date: Thu, 9 Jan 2025 22:21:06 +0000 (-0800)
Subject: perf evsel: Add pmu_name helper
X-Git-Tag: block-6.15-20250403~13^2~226
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=6ab89b7fc2b5ef7eaa6054143ba09f6e0fefb657;p=linux-block.git

perf evsel: Add pmu_name helper

Add helper to get the name of the evsel's PMU. This handles the case
where there's no sysfs PMU via parse_events event_type helper.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: James Clark <james.clark@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Tested-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20250109222109.567031-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index bc144388f892..026cf9a9893c 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -237,6 +237,16 @@ set_methods:
 	return 0;
 }
 
+const char *evsel__pmu_name(const struct evsel *evsel)
+{
+	struct perf_pmu *pmu = evsel__find_pmu(evsel);
+
+	if (pmu)
+		return pmu->name;
+
+	return event_type(evsel->core.attr.type);
+}
+
 #define FD(e, x, y) (*(int *)xyarray__entry(e->core.fd, x, y))
 
 int __evsel__sample_size(u64 sample_type)
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 5e789fa80590..2dd108a14b89 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -236,6 +236,7 @@ int evsel__object_config(size_t object_size,
 			 void (*fini)(struct evsel *evsel));
 
 struct perf_pmu *evsel__find_pmu(const struct evsel *evsel);
+const char *evsel__pmu_name(const struct evsel *evsel);
 bool evsel__is_aux_event(const struct evsel *evsel);
 
 struct evsel *evsel__new_idx(struct perf_event_attr *attr, int idx);