diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/tests/pmu-events.c | 117 |
1 files changed, 114 insertions, 3 deletions
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c index 82fa69a60ec8..b66b021476ec 100644 --- a/tools/perf/tests/pmu-events.c +++ b/tools/perf/tests/pmu-events.c @@ -390,7 +390,8 @@ static bool is_number(const char *str) return errno == 0 && end_ptr != str; } -static int check_parse_id(const char *id, struct parse_events_error *error) +static int check_parse_id(const char *id, struct parse_events_error *error, + struct perf_pmu *fake_pmu) { struct evlist *evlist; int ret; @@ -402,7 +403,7 @@ static int check_parse_id(const char *id, struct parse_events_error *error) evlist = evlist__new(); if (!evlist) return -ENOMEM; - ret = parse_events(evlist, id, error); + ret = __parse_events(evlist, id, error, fake_pmu); evlist__delete(evlist); return ret; } @@ -411,7 +412,7 @@ static int check_parse_cpu(const char *id, bool same_cpu, struct pmu_event *pe) { struct parse_events_error error = { .idx = 0, }; - int ret = check_parse_id(id, &error); + int ret = check_parse_id(id, &error, NULL); if (ret && same_cpu) { pr_warning("Parse event failed metric '%s' id '%s' expr '%s'\n", pe->metric_name, id, pe->metric_expr); @@ -429,6 +430,18 @@ static int check_parse_cpu(const char *id, bool same_cpu, struct pmu_event *pe) return ret; } +static int check_parse_fake(const char *id) +{ + struct parse_events_error error = { .idx = 0, }; + int ret = check_parse_id(id, &error, &perf_pmu__fake); + + free(error.str); + free(error.help); + free(error.first_str); + free(error.first_help); + return ret; +} + static void expr_failure(const char *msg, const struct pmu_events_map *map, const struct pmu_event *pe) @@ -498,6 +511,100 @@ static int test_parsing(void) return ret == 0 ? TEST_OK : TEST_SKIP; } +struct test_metric { + const char *str; +}; + +static struct test_metric metrics[] = { + { "(unc_p_power_state_occupancy.cores_c0 / unc_p_clockticks) * 100." }, + { "imx8_ddr0@read\\-cycles@ * 4 * 4", }, + { "imx8_ddr0@axid\\-read\\,axi_mask\\=0xffff\\,axi_id\\=0x0000@ * 4", }, + { "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100", }, + { "(imx8_ddr0@read\\-cycles@ + imx8_ddr0@write\\-cycles@)", }, +}; + +static int metric_parse_fake(const char *str) +{ + struct expr_parse_ctx ctx; + struct hashmap_entry *cur; + double result; + int ret = -1; + size_t bkt; + int i; + + pr_debug("parsing '%s'\n", str); + + expr__ctx_init(&ctx); + if (expr__find_other(str, NULL, &ctx, 0) < 0) { + pr_err("expr__find_other failed\n"); + return -1; + } + + /* + * Add all ids with a made up value. The value may + * trigger divide by zero when subtracted and so try to + * make them unique. + */ + i = 1; + hashmap__for_each_entry((&ctx.ids), cur, bkt) + expr__add_id(&ctx, strdup(cur->key), i++); + + hashmap__for_each_entry((&ctx.ids), cur, bkt) { + if (check_parse_fake(cur->key)) { + pr_err("check_parse_fake failed\n"); + goto out; + } + } + + if (expr__parse(&result, &ctx, str, 1)) + pr_err("expr__parse failed\n"); + else + ret = 0; + +out: + expr__ctx_clear(&ctx); + return ret; +} + +/* + * Parse all the metrics for current architecture, + * or all defined cpus via the 'fake_pmu' + * in parse_events. + */ +static int test_parsing_fake(void) +{ + struct pmu_events_map *map; + struct pmu_event *pe; + unsigned int i, j; + int err = 0; + + for (i = 0; i < ARRAY_SIZE(metrics); i++) { + err = metric_parse_fake(metrics[i].str); + if (err) + return err; + } + + i = 0; + for (;;) { + map = &pmu_events_map[i++]; + if (!map->table) + break; + j = 0; + for (;;) { + pe = &map->table[j++]; + if (!pe->name && !pe->metric_group && !pe->metric_name) + break; + if (!pe->metric_expr) + continue; + err = metric_parse_fake(pe->metric_expr); + if (err) + return err; + } + } + + return 0; +} + static const struct { int (*func)(void); const char *desc; @@ -514,6 +621,10 @@ static const struct { .func = test_parsing, .desc = "Parsing of PMU event table metrics", }, + { + .func = test_parsing_fake, + .desc = "Parsing of PMU event table metrics with fake PMUs", + }, }; const char *test__pmu_events_subtest_get_desc(int subtest) |