perf tools: Add event_update event cpus type
Adding the cpumask 'event update' event, that stores/transfer the
cpumask for a event.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Kan Liang <kan.liang@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1445784728-21732-25-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index cd3d005..79d3eb9 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2762,6 +2762,38 @@
return err;
}
+int
+perf_event__synthesize_event_update_cpus(struct perf_tool *tool,
+ struct perf_evsel *evsel,
+ perf_event__handler_t process)
+{
+ size_t size = sizeof(struct event_update_event);
+ struct event_update_event *ev;
+ int max, err;
+ u16 type;
+
+ if (!evsel->own_cpus)
+ return 0;
+
+ ev = cpu_map_data__alloc(evsel->own_cpus, &size, &type, &max);
+ if (!ev)
+ return -ENOMEM;
+
+ ev->header.type = PERF_RECORD_EVENT_UPDATE;
+ ev->header.size = (u16)size;
+ ev->type = PERF_EVENT_UPDATE__CPUS;
+ ev->id = evsel->id[0];
+
+ cpu_map_data__synthesize((struct cpu_map_data *) ev->data,
+ evsel->own_cpus,
+ type, max);
+
+ err = process(tool, (union perf_event*) ev, NULL, NULL);
+ free(ev);
+ return err;
+}
+
+
int perf_event__synthesize_attrs(struct perf_tool *tool,
struct perf_session *session,
perf_event__handler_t process)
@@ -2827,8 +2859,10 @@
{
struct event_update_event *ev = &event->event_update;
struct event_update_event_scale *ev_scale;
+ struct event_update_event_cpus *ev_cpus;
struct perf_evlist *evlist;
struct perf_evsel *evsel;
+ struct cpu_map *map;
if (!pevlist || *pevlist == NULL)
return -EINVAL;
@@ -2849,6 +2883,14 @@
case PERF_EVENT_UPDATE__SCALE:
ev_scale = (struct event_update_event_scale *) ev->data;
evsel->scale = ev_scale->scale;
+ case PERF_EVENT_UPDATE__CPUS:
+ ev_cpus = (struct event_update_event_cpus *) ev->data;
+
+ map = cpu_map__new_data(&ev_cpus->cpus);
+ if (map)
+ evsel->own_cpus = map;
+ else
+ pr_err("failed to get event_update cpus\n");
default:
break;
}