1 files changed, 17 insertions, 0 deletions
diff --git a/tools/perf/lib/cpumap.c b/tools/perf/lib/cpumap.c
index 1ddb69e796e5..2834753576b2 100644
--- a/tools/perf/lib/cpumap.c
+++ b/tools/perf/lib/cpumap.c
@@ -237,3 +237,20 @@ int perf_cpu_map__nr(const struct perf_cpu_map *cpus)
 {
 	return cpus ? cpus->nr : 1;
 }
+
+bool perf_cpu_map__empty(const struct perf_cpu_map *map)
+{
+	return map ? map->map[0] == -1 : true;
+}
+
+int perf_cpu_map__idx(struct perf_cpu_map *cpus, int cpu)
+{
+	int i;
+
+	for (i = 0; i < cpus->nr; ++i) {
+		if (cpus->map[i] == cpu)
+			return i;
+	}
+
+	return -1;
+}