mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 03:59:55 +07:00
38f01d8da1
Moving the following functions: cpu_map__get() cpu_map__put() to libperf with following names: perf_cpu_map__get() perf_cpu_map__put() Committer notes: Added fixes for arm/arm64 Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Budankov <alexey.budankov@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20190721112506.12306-31-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
142 lines
3.4 KiB
C
142 lines
3.4 KiB
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);
|
|
perf_header__set_feat(&session->header, HEADER_ARCH);
|
|
|
|
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 perf_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);
|
|
|
|
/* On platforms with large numbers of CPUs process_cpu_topology()
|
|
* might issue an error while reading the perf.data file section
|
|
* HEADER_CPU_TOPOLOGY and the cpu_topology_map pointed to by member
|
|
* cpu is a NULL pointer.
|
|
* Example: On s390
|
|
* CPU 0 is on core_id 0 and physical_package_id 6
|
|
* CPU 1 is on core_id 1 and physical_package_id 3
|
|
*
|
|
* Core_id and physical_package_id are platform and architecture
|
|
* dependend and might have higher numbers than the CPU id.
|
|
* This actually depends on the configuration.
|
|
*
|
|
* In this case process_cpu_topology() prints error message:
|
|
* "socket_id number is too big. You may need to upgrade the
|
|
* perf tool."
|
|
*
|
|
* This is the reason why this test might be skipped.
|
|
*/
|
|
if (!session->header.env.cpu)
|
|
return TEST_SKIP;
|
|
|
|
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 perf_cpu_map *map;
|
|
int ret = TEST_FAIL;
|
|
|
|
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;
|
|
}
|
|
|
|
ret = check_cpu_topology(path, map);
|
|
perf_cpu_map__put(map);
|
|
|
|
free_path:
|
|
unlink(path);
|
|
return ret;
|
|
}
|