perf python: Add evsel cpus and threads functions

Allow access to cpus and thread_map structs associated with an evsel.

Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Gautam Menghani <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Howard Chu <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

Author: captain5050

tools/perf/util/python.c

@@ -781,6 +781,27 @@ static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
 	return Py_None;
 }
 
+static PyObject *pyrf_evsel__cpus(struct pyrf_evsel *pevsel)
+{
+	struct pyrf_cpu_map *pcpu_map = PyObject_New(struct pyrf_cpu_map, &pyrf_cpu_map__type);
+
+	if (pcpu_map)
+		pcpu_map->cpus = perf_cpu_map__get(pevsel->evsel.core.cpus);
+
+	return (PyObject *)pcpu_map;
+}
+
+static PyObject *pyrf_evsel__threads(struct pyrf_evsel *pevsel)
+{
+	struct pyrf_thread_map *pthread_map =
+		PyObject_New(struct pyrf_thread_map, &pyrf_thread_map__type);
+
+	if (pthread_map)
+		pthread_map->threads = perf_thread_map__get(pevsel->evsel.core.threads);
+
+	return (PyObject *)pthread_map;
+}
+
 static PyObject *pyrf_evsel__str(PyObject *self)
 {
 	struct pyrf_evsel *pevsel = (void *)self;
@@ -799,6 +820,18 @@ static PyMethodDef pyrf_evsel__methods[] = {
 		.ml_flags = METH_VARARGS | METH_KEYWORDS,
 		.ml_doc	  = PyDoc_STR("open the event selector file descriptor table.")
 	},
+	{
+		.ml_name  = "cpus",
+		.ml_meth  = (PyCFunction)pyrf_evsel__cpus,
+		.ml_flags = METH_NOARGS,
+		.ml_doc	  = PyDoc_STR("CPUs the event is to be used with.")
+	},
+	{
+		.ml_name  = "threads",
+		.ml_meth  = (PyCFunction)pyrf_evsel__threads,
+		.ml_flags = METH_NOARGS,
+		.ml_doc	  = PyDoc_STR("threads the event is to be used with.")
+	},
 	{ .ml_name = NULL, }
 };