topdown.c

 1// SPDX-License-Identifier: GPL-2.0
 2#include <errno.h>
 3#include "arch-tests.h"
 4#include "../util/topdown.h"
 5#include "debug.h"
 6#include "evlist.h"
 7#include "parse-events.h"
 8#include "pmu.h"
 9#include "pmus.h"
10
11static int event_cb(void *state, struct pmu_event_info *info)
12{
13	char buf[256];
14	struct parse_events_error parse_err;
15	int *ret = state, err;
16	struct evlist *evlist = evlist__new();
17	struct evsel *evsel;
18
19	if (!evlist)
20		return -ENOMEM;
21
22	parse_events_error__init(&parse_err);
23	snprintf(buf, sizeof(buf), "%s/%s/", info->pmu->name, info->name);
24	err = parse_events(evlist, buf, &parse_err);
25	if (err) {
26		parse_events_error__print(&parse_err, buf);
27		*ret = TEST_FAIL;
28	}
29	parse_events_error__exit(&parse_err);
30	evlist__for_each_entry(evlist, evsel) {
31		bool fail = false;
32		bool p_core_pmu = evsel->pmu->type == PERF_TYPE_RAW;
33		const char *name = evsel__name(evsel);
34
35		if (strcasestr(name, "uops_retired.slots") ||
36		    strcasestr(name, "topdown.backend_bound_slots") ||
37		    strcasestr(name, "topdown.br_mispredict_slots") ||
38		    strcasestr(name, "topdown.memory_bound_slots") ||
39		    strcasestr(name, "topdown.bad_spec_slots") ||
40		    strcasestr(name, "topdown.slots_p")) {
41			if (arch_is_topdown_slots(evsel) || arch_is_topdown_metrics(evsel))
42				fail = true;
43		} else if (strcasestr(name, "slots")) {
44			if (arch_is_topdown_slots(evsel) != p_core_pmu ||
45			    arch_is_topdown_metrics(evsel))
46				fail = true;
47		} else if (strcasestr(name, "topdown")) {
48			if (arch_is_topdown_slots(evsel) ||
49			    arch_is_topdown_metrics(evsel) != p_core_pmu)
50				fail = true;
51		} else if (arch_is_topdown_slots(evsel) || arch_is_topdown_metrics(evsel)) {
52			fail = true;
53		}
54		if (fail) {
55			pr_debug("Broken topdown information for '%s'\n", evsel__name(evsel));
56			*ret = TEST_FAIL;
57		}
58	}
59	evlist__delete(evlist);
60	return 0;
61}
62
63static int test__x86_topdown(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
64{
65	int ret = TEST_OK;
66	struct perf_pmu *pmu = NULL;
67
68	if (!topdown_sys_has_perf_metrics())
69		return TEST_OK;
70
71	while ((pmu = perf_pmus__scan_core(pmu)) != NULL) {
72		if (perf_pmu__for_each_event(pmu, /*skip_duplicate_pmus=*/false, &ret, event_cb))
73			break;
74	}
75	return ret;
76}
77
78DEFINE_SUITE("x86 topdown", x86_topdown);