[v4,20/35] perf evsel: Compute is_hybrid from PMU being core

Commit Message

Ian Rogers May 26, 2023, 9:53 p.m. UTC

Short-cut when has_hybrid is false, otherwise return if the evsel's
PMU is core. Add a comment for the some what surprising no PMU cases
of hardware and legacy cache events.

Signed-off-by: Ian Rogers <[e-mail]>
Reviewed-by: Kan Liang <[e-mail]>
---
 tools/perf/util/evsel.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

Patch

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 1df8f967d2eb..1c6e22e3f345 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -46,8 +46,8 @@ 
 #include "memswap.h"
 #include "util.h"
 #include "util/hashmap.h"
-#include "pmu-hybrid.h"
 #include "off_cpu.h"
+#include "pmu.h"
 #include "../perf-sys.h"
 #include "util/parse-branch-options.h"
 #include "util/bpf-filter.h"
@@ -3132,9 +3132,17 @@  void evsel__zero_per_pkg(struct evsel *evsel)
 	}
 }
 
+/**
+ * evsel__is_hybrid - does the evsel have a known PMU that is hybrid. Note, this
+ *                    will be false on hybrid systems for hardware and legacy
+ *                    cache events.
+ */
 bool evsel__is_hybrid(const struct evsel *evsel)
 {
-	return evsel->pmu_name && perf_pmu__is_hybrid(evsel->pmu_name);
+	if (!perf_pmu__has_hybrid())
+		return false;
+
+	return evsel->core.is_pmu_core;
 }
 
 struct evsel *evsel__leader(const struct evsel *evsel)