linux-kernel - [PATCH v1 09/11] perf python: Add evlist all

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Message-Id: <20250109075108.7651-10-irogers@google.com>
Date: Wed,  8 Jan 2025 23:51:06 -0800
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	Kan Liang <kan.liang@...ux.intel.com>, Yicong Yang <yangyicong@...ilicon.com>, 
	James Clark <james.clark@...aro.org>, Howard Chu <howardchu95@...il.com>, 
	"Dr. David Alan Gilbert" <linux@...blig.org>, Levi Yun <yeoreum.yun@....com>, Ze Gao <zegao2021@...il.com>, 
	Weilin Wang <weilin.wang@...el.com>, Xu Yang <xu.yang_2@....com>, 
	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 09/11] perf python: Add evlist all_cpus accessor

Add a means to get the reference counted all_cpus CPU map from an
evlist in its python form.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/util/python.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index d1ce3b6b5bf1..1e8ab5291637 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -865,6 +865,16 @@ static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
 	Py_TYPE(pevlist)->tp_free((PyObject*)pevlist);
 }
 
+static PyObject *pyrf_evlist__all_cpus(struct pyrf_evlist *pevlist)
+{
+	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(pevlist->evlist.core.all_cpus);
+
+	return (PyObject *)pcpu_map;
+}
+
 static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
 				   PyObject *args, PyObject *kwargs)
 {
@@ -1048,6 +1058,12 @@ static PyObject *pyrf_evlist__enable(struct pyrf_evlist *pevlist)
 }
 
 static PyMethodDef pyrf_evlist__methods[] = {
+	{
+		.ml_name  = "all_cpus",
+		.ml_meth  = (PyCFunction)pyrf_evlist__all_cpus,
+		.ml_flags = METH_NOARGS,
+		.ml_doc	  = PyDoc_STR("CPU map union of all evsel CPU maps.")
+	},
 	{
 		.ml_name  = "mmap",
 		.ml_meth  = (PyCFunction)pyrf_evlist__mmap,
-- 
2.47.1.613.gc27f4b7a9f-goog