1 // SPDX-License-Identifier: GPL-2.0
11 #define TEMPL "/tmp/perf-test-XXXXXX"
14 static int get_temp(char *path)
22 perror("mkstemp failed");
30 static int session_write_header(char *path)
32 struct perf_session *session;
33 struct perf_data_file file = {
35 .mode = PERF_DATA_MODE_WRITE,
38 session = perf_session__new(&file, false, NULL);
39 TEST_ASSERT_VAL("can't get session", session);
41 session->evlist = perf_evlist__new_default();
42 TEST_ASSERT_VAL("can't get evlist", session->evlist);
44 perf_header__set_feat(&session->header, HEADER_CPU_TOPOLOGY);
45 perf_header__set_feat(&session->header, HEADER_NRCPUS);
47 session->header.data_size += DATA_SIZE;
49 TEST_ASSERT_VAL("failed to write header",
50 !perf_session__write_header(session, session->evlist, file.fd, true));
52 perf_session__delete(session);
57 static int check_cpu_topology(char *path, struct cpu_map *map)
59 struct perf_session *session;
60 struct perf_data_file file = {
62 .mode = PERF_DATA_MODE_READ,
66 session = perf_session__new(&file, false, NULL);
67 TEST_ASSERT_VAL("can't get session", session);
69 for (i = 0; i < session->header.env.nr_cpus_avail; i++) {
70 if (!cpu_map__has(map, i))
72 pr_debug("CPU %d, core %d, socket %d\n", i,
73 session->header.env.cpu[i].core_id,
74 session->header.env.cpu[i].socket_id);
77 for (i = 0; i < map->nr; i++) {
78 TEST_ASSERT_VAL("Core ID doesn't match",
79 (session->header.env.cpu[map->map[i]].core_id == (cpu_map__get_core(map, i, NULL) & 0xffff)));
81 TEST_ASSERT_VAL("Socket ID doesn't match",
82 (session->header.env.cpu[map->map[i]].socket_id == cpu_map__get_socket(map, i, NULL)));
85 perf_session__delete(session);
90 int test__session_topology(struct test *test __maybe_unused, int subtest __maybe_unused)
96 TEST_ASSERT_VAL("can't get templ file", !get_temp(path));
98 pr_debug("templ file: %s\n", path);
100 if (session_write_header(path))
103 map = cpu_map__new(NULL);
105 pr_debug("failed to get system cpumap\n");
109 if (check_cpu_topology(path, map))