perf pmu: Add is_pmu_core()

Add a function to decide whether a PMU is a core PMU.

Signed-off-by: John Garry <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: James Clark <[email protected]>
Cc: Joakim Zhang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

Author: John Garry

tools/perf/util/pmu.c

@@ -1400,6 +1400,11 @@ static void wordwrap(char *s, int start, int max, int corr)
 	}
 }
 
+bool is_pmu_core(const char *name)
+{
+	return !strcmp(name, "cpu") || is_arm_pmu_core(name);
+}
+
 void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
 			bool long_desc, bool details_flag, bool deprecated)
 {

tools/perf/util/pmu.h

@@ -88,6 +88,7 @@ int perf_pmu__format_parse(char *dir, struct list_head *head);
 
 struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);
 
+bool is_pmu_core(const char *name);
 void print_pmu_events(const char *event_glob, bool name_only, bool quiet,
 		      bool long_desc, bool details_flag,
 		      bool deprecated);