[linux-2.6-block.git] / tools / perf / tests / topology.c

// SPDX-License-Identifier: GPL-2.0
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "tests.h"
#include "util.h"
#include "session.h"
#include "evlist.h"
#include "debug.h"

#define TEMPL "/tmp/perf-test-XXXXXX"
#define DATA_SIZE	10

static int get_temp(char *path)
{
	int fd;

	strcpy(path, TEMPL);

	fd = mkstemp(path);
	if (fd < 0) {
		perror("mkstemp failed");
		return -1;
	}

	close(fd);
	return 0;
}

static int session_write_header(char *path)
{
	struct perf_session *session;
	struct perf_data data = {
		.file      = {
			.path = path,
		},
		.mode      = PERF_DATA_MODE_WRITE,
	};

	session = perf_session__new(&data, false, NULL);
	TEST_ASSERT_VAL("can't get session", session);

	session->evlist = perf_evlist__new_default();
	TEST_ASSERT_VAL("can't get evlist", session->evlist);

	perf_header__set_feat(&session->header, HEADER_CPU_TOPOLOGY);
	perf_header__set_feat(&session->header, HEADER_NRCPUS);

	session->header.data_size += DATA_SIZE;

	TEST_ASSERT_VAL("failed to write header",
			!perf_session__write_header(session, session->evlist, data.file.fd, true));

	perf_session__delete(session);

	return 0;
}

static int check_cpu_topology(char *path, struct cpu_map *map)
{
	struct perf_session *session;
	struct perf_data data = {
		.file      = {
			.path = path,
		},
		.mode      = PERF_DATA_MODE_READ,
	};
	int i;

	session = perf_session__new(&data, false, NULL);
	TEST_ASSERT_VAL("can't get session", session);

	for (i = 0; i < session->header.env.nr_cpus_avail; i++) {
		if (!cpu_map__has(map, i))
			continue;
		pr_debug("CPU %d, core %d, socket %d\n", i,
			 session->header.env.cpu[i].core_id,
			 session->header.env.cpu[i].socket_id);
	}

	for (i = 0; i < map->nr; i++) {
		TEST_ASSERT_VAL("Core ID doesn't match",
			(session->header.env.cpu[map->map[i]].core_id == (cpu_map__get_core(map, i, NULL) & 0xffff)));

		TEST_ASSERT_VAL("Socket ID doesn't match",
			(session->header.env.cpu[map->map[i]].socket_id == cpu_map__get_socket(map, i, NULL)));
	}

	perf_session__delete(session);

	return 0;
}

int test__session_topology(struct test *test __maybe_unused, int subtest __maybe_unused)
{
	char path[PATH_MAX];
	struct cpu_map *map;
	int ret = -1;

	TEST_ASSERT_VAL("can't get templ file", !get_temp(path));

	pr_debug("templ file: %s\n", path);

	if (session_write_header(path))
		goto free_path;

	map = cpu_map__new(NULL);
	if (map == NULL) {
		pr_debug("failed to get system cpumap\n");
		goto free_path;
	}

	if (check_cpu_topology(path, map))
		goto free_map;
	ret = 0;

free_map:
	cpu_map__put(map);
free_path:
	unlink(path);
	return ret;
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
c84974ed KL	2	#include <string.h>
	3	#include <stdlib.h>
	4	#include <stdio.h>
	5	#include "tests.h"
	6	#include "util.h"
	7	#include "session.h"
	8	#include "evlist.h"
	9	#include "debug.h"
	10
	11	#define TEMPL "/tmp/perf-test-XXXXXX"
	12	#define DATA_SIZE 10
	13
	14	static int get_temp(char *path)
	15	{
	16	int fd;
	17
	18	strcpy(path, TEMPL);
	19
	20	fd = mkstemp(path);
	21	if (fd < 0) {
	22	perror("mkstemp failed");
	23	return -1;
	24	}
	25
	26	close(fd);
	27	return 0;
	28	}
	29
	30	static int session_write_header(char *path)
	31	{
	32	struct perf_session *session;
8ceb41d7	33	struct perf_data data = {
eae8ad80 JO	34	.file = {
	35	.path = path,
	36	},
	37	.mode = PERF_DATA_MODE_WRITE,
c84974ed KL	38	};
c84974ed KL	39
8ceb41d7	40	session = perf_session__new(&data, false, NULL);
c84974ed KL	41	TEST_ASSERT_VAL("can't get session", session);
	42
	43	session->evlist = perf_evlist__new_default();
	44	TEST_ASSERT_VAL("can't get evlist", session->evlist);
	45
	46	perf_header__set_feat(&session->header, HEADER_CPU_TOPOLOGY);
	47	perf_header__set_feat(&session->header, HEADER_NRCPUS);
	48
	49	session->header.data_size += DATA_SIZE;
	50
	51	TEST_ASSERT_VAL("failed to write header",
eae8ad80	52	!perf_session__write_header(session, session->evlist, data.file.fd, true));
c84974ed KL	53
	54	perf_session__delete(session);
	55
	56	return 0;
	57	}
	58
	59	static int check_cpu_topology(char path, struct cpu_map map)
	60	{
	61	struct perf_session *session;
8ceb41d7	62	struct perf_data data = {
eae8ad80 JO	63	.file = {
	64	.path = path,
	65	},
	66	.mode = PERF_DATA_MODE_READ,
c84974ed KL	67	};
	68	int i;
	69
8ceb41d7	70	session = perf_session__new(&data, false, NULL);
c84974ed KL	71	TEST_ASSERT_VAL("can't get session", session);
c84974ed KL	72
da8a58b5 JS	73	for (i = 0; i < session->header.env.nr_cpus_avail; i++) {
	74	if (!cpu_map__has(map, i))
	75	continue;
c84974ed KL	76	pr_debug("CPU %d, core %d, socket %d\n", i,
	77	session->header.env.cpu[i].core_id,
	78	session->header.env.cpu[i].socket_id);
	79	}
	80
	81	for (i = 0; i < map->nr; i++) {
	82	TEST_ASSERT_VAL("Core ID doesn't match",
1fe7a300	83	(session->header.env.cpu[map->map[i]].core_id == (cpu_map__get_core(map, i, NULL) & 0xffff)));
c84974ed KL	84
c84974ed KL	85	TEST_ASSERT_VAL("Socket ID doesn't match",
1fe7a300	86	(session->header.env.cpu[map->map[i]].socket_id == cpu_map__get_socket(map, i, NULL)));
c84974ed KL	87	}
	88
	89	perf_session__delete(session);
	90
	91	return 0;
	92	}
	93
81f17c90	94	int test__session_topology(struct test *test __maybe_unused, int subtest __maybe_unused)
c84974ed KL	95	{
	96	char path[PATH_MAX];
	97	struct cpu_map *map;
	98	int ret = -1;
	99
	100	TEST_ASSERT_VAL("can't get templ file", !get_temp(path));
	101
	102	pr_debug("templ file: %s\n", path);
	103
	104	if (session_write_header(path))
	105	goto free_path;
	106
	107	map = cpu_map__new(NULL);
	108	if (map == NULL) {
	109	pr_debug("failed to get system cpumap\n");
	110	goto free_path;
	111	}
	112
	113	if (check_cpu_topology(path, map))
	114	goto free_map;
	115	ret = 0;
	116
	117	free_map:
	118	cpu_map__put(map);
	119	free_path:
	120	unlink(path);
	121	return ret;
	122	}