// SPDX-License-Identifier: GPL-2.0 #include "math.h" #include "parse-events.h" #include "pmu.h" #include "tests.h" #include #include #include #include #include "debug.h" #include "../pmu-events/pmu-events.h" #include #include "util/evlist.h" #include "util/expr.h" #include "util/parse-events.h" #include "metricgroup.h" #include "stat.h" struct perf_pmu_test_event { /* used for matching against events from generated pmu-events.c */ struct pmu_event event; /* used for matching against event aliases */ /* extra events for aliases */ const char *alias_str; /* * Note: For when PublicDescription does not exist in the JSON, we * will have no long_desc in pmu_event.long_desc, but long_desc may * be set in the alias. */ const char *alias_long_desc; /* PMU which we should match against */ const char *matching_pmu; }; struct perf_pmu_test_pmu { struct perf_pmu pmu; struct perf_pmu_test_event const *aliases[10]; }; static const struct perf_pmu_test_event bp_l1_btb_correct = { .event = { .name = "bp_l1_btb_correct", .event = "event=0x8a", .desc = "L1 BTB Correction", .topic = "branch", }, .alias_str = "event=0x8a", .alias_long_desc = "L1 BTB Correction", }; static const struct perf_pmu_test_event bp_l2_btb_correct = { .event = { .name = "bp_l2_btb_correct", .event = "event=0x8b", .desc = "L2 BTB Correction", .topic = "branch", }, .alias_str = "event=0x8b", .alias_long_desc = "L2 BTB Correction", }; static const struct perf_pmu_test_event segment_reg_loads_any = { .event = { .name = "segment_reg_loads.any", .event = "event=0x6,period=200000,umask=0x80", .desc = "Number of segment register loads", .topic = "other", }, .alias_str = "event=0x6,period=0x30d40,umask=0x80", .alias_long_desc = "Number of segment register loads", }; static const struct perf_pmu_test_event dispatch_blocked_any = { .event = { .name = "dispatch_blocked.any", .event = "event=0x9,period=200000,umask=0x20", .desc = "Memory cluster signals to block micro-op dispatch for any reason", .topic = "other", }, .alias_str = "event=0x9,period=0x30d40,umask=0x20", .alias_long_desc = "Memory cluster signals to block micro-op dispatch for any reason", }; static const struct perf_pmu_test_event eist_trans = { .event = { .name = "eist_trans", .event = "event=0x3a,period=200000,umask=0x0", .desc = "Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions", .topic = "other", }, .alias_str = "event=0x3a,period=0x30d40,umask=0", .alias_long_desc = "Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions", }; static const struct perf_pmu_test_event l3_cache_rd = { .event = { .name = "l3_cache_rd", .event = "event=0x40", .desc = "L3 cache access, read", .long_desc = "Attributable Level 3 cache access, read", .topic = "cache", }, .alias_str = "event=0x40", .alias_long_desc = "Attributable Level 3 cache access, read", }; static const struct perf_pmu_test_event *core_events[] = { &bp_l1_btb_correct, &bp_l2_btb_correct, &segment_reg_loads_any, &dispatch_blocked_any, &eist_trans, &l3_cache_rd, NULL }; static const struct perf_pmu_test_event uncore_hisi_ddrc_flux_wcmd = { .event = { .name = "uncore_hisi_ddrc.flux_wcmd", .event = "event=0x2", .desc = "DDRC write commands. Unit: hisi_sccl,ddrc ", .topic = "uncore", .long_desc = "DDRC write commands", .pmu = "hisi_sccl,ddrc", }, .alias_str = "event=0x2", .alias_long_desc = "DDRC write commands", .matching_pmu = "hisi_sccl1_ddrc2", }; static const struct perf_pmu_test_event unc_cbo_xsnp_response_miss_eviction = { .event = { .name = "unc_cbo_xsnp_response.miss_eviction", .event = "event=0x22,umask=0x81", .desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core. Unit: uncore_cbox ", .topic = "uncore", .long_desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core", .pmu = "uncore_cbox", }, .alias_str = "event=0x22,umask=0x81", .alias_long_desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core", .matching_pmu = "uncore_cbox_0", }; static const struct perf_pmu_test_event uncore_hyphen = { .event = { .name = "event-hyphen", .event = "event=0xe0,umask=0x00", .desc = "UNC_CBO_HYPHEN. Unit: uncore_cbox ", .topic = "uncore", .long_desc = "UNC_CBO_HYPHEN", .pmu = "uncore_cbox", }, .alias_str = "event=0xe0,umask=0", .alias_long_desc = "UNC_CBO_HYPHEN", .matching_pmu = "uncore_cbox_0", }; static const struct perf_pmu_test_event uncore_two_hyph = { .event = { .name = "event-two-hyph", .event = "event=0xc0,umask=0x00", .desc = "UNC_CBO_TWO_HYPH. Unit: uncore_cbox ", .topic = "uncore", .long_desc = "UNC_CBO_TWO_HYPH", .pmu = "uncore_cbox", }, .alias_str = "event=0xc0,umask=0", .alias_long_desc = "UNC_CBO_TWO_HYPH", .matching_pmu = "uncore_cbox_0", }; static const struct perf_pmu_test_event uncore_hisi_l3c_rd_hit_cpipe = { .event = { .name = "uncore_hisi_l3c.rd_hit_cpipe", .event = "event=0x7", .desc = "Total read hits. Unit: hisi_sccl,l3c ", .topic = "uncore", .long_desc = "Total read hits", .pmu = "hisi_sccl,l3c", }, .alias_str = "event=0x7", .alias_long_desc = "Total read hits", .matching_pmu = "hisi_sccl3_l3c7", }; static const struct perf_pmu_test_event uncore_imc_free_running_cache_miss = { .event = { .name = "uncore_imc_free_running.cache_miss", .event = "event=0x12", .desc = "Total cache misses. Unit: uncore_imc_free_running ", .topic = "uncore", .long_desc = "Total cache misses", .pmu = "uncore_imc_free_running", }, .alias_str = "event=0x12", .alias_long_desc = "Total cache misses", .matching_pmu = "uncore_imc_free_running_0", }; static const struct perf_pmu_test_event uncore_imc_cache_hits = { .event = { .name = "uncore_imc.cache_hits", .event = "event=0x34", .desc = "Total cache hits. Unit: uncore_imc ", .topic = "uncore", .long_desc = "Total cache hits", .pmu = "uncore_imc", }, .alias_str = "event=0x34", .alias_long_desc = "Total cache hits", .matching_pmu = "uncore_imc_0", }; static const struct perf_pmu_test_event *uncore_events[] = { &uncore_hisi_ddrc_flux_wcmd, &unc_cbo_xsnp_response_miss_eviction, &uncore_hyphen, &uncore_two_hyph, &uncore_hisi_l3c_rd_hit_cpipe, &uncore_imc_free_running_cache_miss, &uncore_imc_cache_hits, NULL }; static const struct perf_pmu_test_event sys_ddr_pmu_write_cycles = { .event = { .name = "sys_ddr_pmu.write_cycles", .event = "event=0x2b", .desc = "ddr write-cycles event. Unit: uncore_sys_ddr_pmu ", .topic = "uncore", .pmu = "uncore_sys_ddr_pmu", .compat = "v8", }, .alias_str = "event=0x2b", .alias_long_desc = "ddr write-cycles event. Unit: uncore_sys_ddr_pmu ", .matching_pmu = "uncore_sys_ddr_pmu", }; static const struct perf_pmu_test_event sys_ccn_pmu_read_cycles = { .event = { .name = "sys_ccn_pmu.read_cycles", .event = "config=0x2c", .desc = "ccn read-cycles event. Unit: uncore_sys_ccn_pmu ", .topic = "uncore", .pmu = "uncore_sys_ccn_pmu", .compat = "0x01", }, .alias_str = "config=0x2c", .alias_long_desc = "ccn read-cycles event. Unit: uncore_sys_ccn_pmu ", .matching_pmu = "uncore_sys_ccn_pmu", }; static const struct perf_pmu_test_event *sys_events[] = { &sys_ddr_pmu_write_cycles, &sys_ccn_pmu_read_cycles, NULL }; static bool is_same(const char *reference, const char *test) { if (!reference && !test) return true; if (reference && !test) return false; if (!reference && test) return false; return !strcmp(reference, test); } static int compare_pmu_events(const struct pmu_event *e1, const struct pmu_event *e2) { if (!is_same(e1->name, e2->name)) { pr_debug2("testing event e1 %s: mismatched name string, %s vs %s\n", e1->name, e1->name, e2->name); return -1; } if (!is_same(e1->compat, e2->compat)) { pr_debug2("testing event e1 %s: mismatched compat string, %s vs %s\n", e1->name, e1->compat, e2->compat); return -1; } if (!is_same(e1->event, e2->event)) { pr_debug2("testing event e1 %s: mismatched event, %s vs %s\n", e1->name, e1->event, e2->event); return -1; } if (!is_same(e1->desc, e2->desc)) { pr_debug2("testing event e1 %s: mismatched desc, %s vs %s\n", e1->name, e1->desc, e2->desc); return -1; } if (!is_same(e1->topic, e2->topic)) { pr_debug2("testing event e1 %s: mismatched topic, %s vs %s\n", e1->name, e1->topic, e2->topic); return -1; } if (!is_same(e1->long_desc, e2->long_desc)) { pr_debug2("testing event e1 %s: mismatched long_desc, %s vs %s\n", e1->name, e1->long_desc, e2->long_desc); return -1; } if (!is_same(e1->pmu, e2->pmu)) { pr_debug2("testing event e1 %s: mismatched pmu string, %s vs %s\n", e1->name, e1->pmu, e2->pmu); return -1; } if (!is_same(e1->unit, e2->unit)) { pr_debug2("testing event e1 %s: mismatched unit, %s vs %s\n", e1->name, e1->unit, e2->unit); return -1; } if (!is_same(e1->perpkg, e2->perpkg)) { pr_debug2("testing event e1 %s: mismatched perpkg, %s vs %s\n", e1->name, e1->perpkg, e2->perpkg); return -1; } if (!is_same(e1->aggr_mode, e2->aggr_mode)) { pr_debug2("testing event e1 %s: mismatched aggr_mode, %s vs %s\n", e1->name, e1->aggr_mode, e2->aggr_mode); return -1; } if (!is_same(e1->metric_expr, e2->metric_expr)) { pr_debug2("testing event e1 %s: mismatched metric_expr, %s vs %s\n", e1->name, e1->metric_expr, e2->metric_expr); return -1; } if (!is_same(e1->metric_name, e2->metric_name)) { pr_debug2("testing event e1 %s: mismatched metric_name, %s vs %s\n", e1->name, e1->metric_name, e2->metric_name); return -1; } if (!is_same(e1->metric_group, e2->metric_group)) { pr_debug2("testing event e1 %s: mismatched metric_group, %s vs %s\n", e1->name, e1->metric_group, e2->metric_group); return -1; } if (!is_same(e1->deprecated, e2->deprecated)) { pr_debug2("testing event e1 %s: mismatched deprecated, %s vs %s\n", e1->name, e1->deprecated, e2->deprecated); return -1; } if (!is_same(e1->metric_constraint, e2->metric_constraint)) { pr_debug2("testing event e1 %s: mismatched metric_constant, %s vs %s\n", e1->name, e1->metric_constraint, e2->metric_constraint); return -1; } return 0; } static int compare_alias_to_test_event(struct perf_pmu_alias *alias, struct perf_pmu_test_event const *test_event, char const *pmu_name) { struct pmu_event const *event = &test_event->event; /* An alias was found, ensure everything is in order */ if (!is_same(alias->name, event->name)) { pr_debug("testing aliases PMU %s: mismatched name, %s vs %s\n", pmu_name, alias->name, event->name); return -1; } if (!is_same(alias->desc, event->desc)) { pr_debug("testing aliases PMU %s: mismatched desc, %s vs %s\n", pmu_name, alias->desc, event->desc); return -1; } if (!is_same(alias->long_desc, test_event->alias_long_desc)) { pr_debug("testing aliases PMU %s: mismatched long_desc, %s vs %s\n", pmu_name, alias->long_desc, test_event->alias_long_desc); return -1; } if (!is_same(alias->topic, event->topic)) { pr_debug("testing aliases PMU %s: mismatched topic, %s vs %s\n", pmu_name, alias->topic, event->topic); return -1; } if (!is_same(alias->str, test_event->alias_str)) { pr_debug("testing aliases PMU %s: mismatched str, %s vs %s\n", pmu_name, alias->str, test_event->alias_str); return -1; } if (!is_same(alias->long_desc, test_event->alias_long_desc)) { pr_debug("testing aliases PMU %s: mismatched long desc, %s vs %s\n", pmu_name, alias->str, test_event->alias_long_desc); return -1; } if (!is_same(alias->pmu_name, test_event->event.pmu)) { pr_debug("testing aliases PMU %s: mismatched pmu_name, %s vs %s\n", pmu_name, alias->pmu_name, test_event->event.pmu); return -1; } return 0; } static int test__pmu_event_table_core_callback(const struct pmu_event *pe, const struct pmu_events_table *table __maybe_unused, void *data) { int *map_events = data; struct perf_pmu_test_event const **test_event_table; bool found = false; if (!pe->name) return 0; if (pe->pmu) test_event_table = &uncore_events[0]; else test_event_table = &core_events[0]; for (; *test_event_table; test_event_table++) { struct perf_pmu_test_event const *test_event = *test_event_table; struct pmu_event const *event = &test_event->event; if (strcmp(pe->name, event->name)) continue; found = true; (*map_events)++; if (compare_pmu_events(pe, event)) return -1; pr_debug("testing event table %s: pass\n", pe->name); } if (!found) { pr_err("testing event table: could not find event %s\n", pe->name); return -1; } return 0; } static int test__pmu_event_table_sys_callback(const struct pmu_event *pe, const struct pmu_events_table *table __maybe_unused, void *data) { int *map_events = data; struct perf_pmu_test_event const **test_event_table; bool found = false; test_event_table = &sys_events[0]; for (; *test_event_table; test_event_table++) { struct perf_pmu_test_event const *test_event = *test_event_table; struct pmu_event const *event = &test_event->event; if (strcmp(pe->name, event->name)) continue; found = true; (*map_events)++; if (compare_pmu_events(pe, event)) return TEST_FAIL; pr_debug("testing sys event table %s: pass\n", pe->name); } if (!found) { pr_debug("testing sys event table: could not find event %s\n", pe->name); return TEST_FAIL; } return TEST_OK; } /* Verify generated events from pmu-events.c are as expected */ static int test__pmu_event_table(struct test_suite *test __maybe_unused, int subtest __maybe_unused) { const struct pmu_events_table *sys_event_table = find_sys_events_table("pme_test_soc_sys"); const struct pmu_events_table *table = find_core_events_table("testarch", "testcpu"); int map_events = 0, expected_events, err; /* ignore 3x sentinels */ expected_events = ARRAY_SIZE(core_events) + ARRAY_SIZE(uncore_events) + ARRAY_SIZE(sys_events) - 3; if (!table || !sys_event_table) return -1; err = pmu_events_table_for_each_event(table, test__pmu_event_table_core_callback, &map_events); if (err) return err; err = pmu_events_table_for_each_event(sys_event_table, test__pmu_event_table_sys_callback, &map_events); if (err) return err; if (map_events != expected_events) { pr_err("testing event table: found %d, but expected %d\n", map_events, expected_events); return TEST_FAIL; } return 0; } static struct perf_pmu_alias *find_alias(const char *test_event, struct list_head *aliases) { struct perf_pmu_alias *alias; list_for_each_entry(alias, aliases, list) if (!strcmp(test_event, alias->name)) return alias; return NULL; } /* Verify aliases are as expected */ static int __test_core_pmu_event_aliases(char *pmu_name, int *count) { struct perf_pmu_test_event const **test_event_table; struct perf_pmu *pmu; LIST_HEAD(aliases); int res = 0; const struct pmu_events_table *table = find_core_events_table("testarch", "testcpu"); struct perf_pmu_alias *a, *tmp; if (!table) return -1; test_event_table = &core_events[0]; pmu = zalloc(sizeof(*pmu)); if (!pmu) return -1; pmu->name = pmu_name; pmu_add_cpu_aliases_table(&aliases, pmu, table); for (; *test_event_table; test_event_table++) { struct perf_pmu_test_event const *test_event = *test_event_table; struct pmu_event const *event = &test_event->event; struct perf_pmu_alias *alias = find_alias(event->name, &aliases); if (!alias) { pr_debug("testing aliases core PMU %s: no alias, alias_table->name=%s\n", pmu_name, event->name); res = -1; break; } if (compare_alias_to_test_event(alias, test_event, pmu_name)) { res = -1; break; } (*count)++; pr_debug2("testing aliases core PMU %s: matched event %s\n", pmu_name, alias->name); } list_for_each_entry_safe(a, tmp, &aliases, list) { list_del(&a->list); perf_pmu_free_alias(a); } free(pmu); return res; } static int __test_uncore_pmu_event_aliases(struct perf_pmu_test_pmu *test_pmu) { int alias_count = 0, to_match_count = 0, matched_count = 0; struct perf_pmu_test_event const **table; struct perf_pmu *pmu = &test_pmu->pmu; const char *pmu_name = pmu->name; struct perf_pmu_alias *a, *tmp, *alias; const struct pmu_events_table *events_table; LIST_HEAD(aliases); int res = 0; events_table = find_core_events_table("testarch", "testcpu"); if (!events_table) return -1; pmu_add_cpu_aliases_table(&aliases, pmu, events_table); pmu_add_sys_aliases(&aliases, pmu); /* Count how many aliases we generated */ list_for_each_entry(alias, &aliases, list) alias_count++; /* Count how many aliases we expect from the known table */ for (table = &test_pmu->aliases[0]; *table; table++) to_match_count++; if (alias_count != to_match_count) { pr_debug("testing aliases uncore PMU %s: mismatch expected aliases (%d) vs found (%d)\n", pmu_name, to_match_count, alias_count); res = -1; goto out; } list_for_each_entry(alias, &aliases, list) { bool matched = false; for (table = &test_pmu->aliases[0]; *table; table++) { struct perf_pmu_test_event const *test_event = *table; struct pmu_event const *event = &test_event->event; if (!strcmp(event->name, alias->name)) { if (compare_alias_to_test_event(alias, test_event, pmu_name)) { continue; } matched = true; matched_count++; } } if (matched == false) { pr_debug("testing aliases uncore PMU %s: could not match alias %s\n", pmu_name, alias->name); res = -1; goto out; } } if (alias_count != matched_count) { pr_debug("testing aliases uncore PMU %s: mismatch found aliases (%d) vs matched (%d)\n", pmu_name, matched_count, alias_count); res = -1; } out: list_for_each_entry_safe(a, tmp, &aliases, list) { list_del(&a->list); perf_pmu_free_alias(a); } return res; } static struct perf_pmu_test_pmu test_pmus[] = { { .pmu = { .name = (char *)"hisi_sccl1_ddrc2", .is_uncore = 1, }, .aliases = { &uncore_hisi_ddrc_flux_wcmd, }, }, { .pmu = { .name = (char *)"uncore_cbox_0", .is_uncore = 1, }, .aliases = { &unc_cbo_xsnp_response_miss_eviction, &uncore_hyphen, &uncore_two_hyph, }, }, { .pmu = { .name = (char *)"hisi_sccl3_l3c7", .is_uncore = 1, }, .aliases = { &uncore_hisi_l3c_rd_hit_cpipe, }, }, { .pmu = { .name = (char *)"uncore_imc_free_running_0", .is_uncore = 1, }, .aliases = { &uncore_imc_free_running_cache_miss, }, }, { .pmu = { .name = (char *)"uncore_imc_0", .is_uncore = 1, }, .aliases = { &uncore_imc_cache_hits, }, }, { .pmu = { .name = (char *)"uncore_sys_ddr_pmu0", .is_uncore = 1, .id = (char *)"v8", }, .aliases = { &sys_ddr_pmu_write_cycles, }, }, { .pmu = { .name = (char *)"uncore_sys_ccn_pmu4", .is_uncore = 1, .id = (char *)"0x01", }, .aliases = { &sys_ccn_pmu_read_cycles, }, }, }; /* Test that aliases generated are as expected */ static int test__aliases(struct test_suite *test __maybe_unused, int subtest __maybe_unused) { struct perf_pmu *pmu = NULL; unsigned long i; while ((pmu = perf_pmu__scan(pmu)) != NULL) { int count = 0; if (!is_pmu_core(pmu->name)) continue; if (list_empty(&pmu->format)) { pr_debug2("skipping testing core PMU %s\n", pmu->name); continue; } if (__test_core_pmu_event_aliases(pmu->name, &count)) { pr_debug("testing core PMU %s aliases: failed\n", pmu->name); return -1; } if (count == 0) { pr_debug("testing core PMU %s aliases: no events to match\n", pmu->name); return -1; } pr_debug("testing core PMU %s aliases: pass\n", pmu->name); } for (i = 0; i < ARRAY_SIZE(test_pmus); i++) { int res = __test_uncore_pmu_event_aliases(&test_pmus[i]); if (res) return res; } return 0; } static bool is_number(const char *str) { char *end_ptr; double v; errno = 0; v = strtod(str, &end_ptr); (void)v; // We're not interested in this value, only if it is valid return errno == 0 && end_ptr != str; } static int check_parse_id(const char *id, struct parse_events_error *error, struct perf_pmu *fake_pmu) { struct evlist *evlist; int ret; char *dup, *cur; /* Numbers are always valid. */ if (is_number(id)) return 0; evlist = evlist__new(); if (!evlist) return -ENOMEM; dup = strdup(id); if (!dup) return -ENOMEM; for (cur = strchr(dup, '@') ; cur; cur = strchr(++cur, '@')) *cur = '/'; if (fake_pmu) { /* * Every call to __parse_events will try to initialize the PMU * state from sysfs and then clean it up at the end. Reset the * PMU events to the test state so that we don't pick up * erroneous prefixes and suffixes. */ perf_pmu__test_parse_init(); } ret = __parse_events(evlist, dup, error, fake_pmu); free(dup); evlist__delete(evlist); return ret; } static int check_parse_fake(const char *id) { struct parse_events_error error; int ret; parse_events_error__init(&error); ret = check_parse_id(id, &error, &perf_pmu__fake); parse_events_error__exit(&error); return ret; } struct metric { struct list_head list; struct metric_ref metric_ref; }; static int test__parsing_callback(const struct pmu_event *pe, const struct pmu_events_table *table, void *data) { int *failures = data; int k; struct evlist *evlist; struct perf_cpu_map *cpus; struct runtime_stat st; struct evsel *evsel; struct rblist metric_events = { .nr_entries = 0, }; int err = 0; if (!pe->metric_expr) return 0; pr_debug("Found metric '%s'\n", pe->metric_name); (*failures)++; /* * We need to prepare evlist for stat mode running on CPU 0 * because that's where all the stats are going to be created. */ evlist = evlist__new(); if (!evlist) return -ENOMEM; cpus = perf_cpu_map__new("0"); if (!cpus) { evlist__delete(evlist); return -ENOMEM; } perf_evlist__set_maps(&evlist->core, cpus, NULL); runtime_stat__init(&st); err = metricgroup__parse_groups_test(evlist, table, pe->metric_name, false, false, &metric_events); if (err) { if (!strcmp(pe->metric_name, "M1") || !strcmp(pe->metric_name, "M2") || !strcmp(pe->metric_name, "M3")) { (*failures)--; pr_debug("Expected broken metric %s skipping\n", pe->metric_name); err = 0; } goto out_err; } err = evlist__alloc_stats(evlist, false); if (err) goto out_err; /* * Add all ids with a made up value. The value may trigger divide by * zero when subtracted and so try to make them unique. */ k = 1; perf_stat__reset_shadow_stats(); evlist__for_each_entry(evlist, evsel) { perf_stat__update_shadow_stats(evsel, k, 0, &st); if (!strcmp(evsel->name, "duration_time")) update_stats(&walltime_nsecs_stats, k); k++; } evlist__for_each_entry(evlist, evsel) { struct metric_event *me = metricgroup__lookup(&metric_events, evsel, false); if (me != NULL) { struct metric_expr *mexp; list_for_each_entry (mexp, &me->head, nd) { if (strcmp(mexp->metric_name, pe->metric_name)) continue; pr_debug("Result %f\n", test_generic_metric(mexp, 0, &st)); err = 0; (*failures)--; goto out_err; } } } pr_debug("Didn't find parsed metric %s", pe->metric_name); err = 1; out_err: if (err) pr_debug("Broken metric %s\n", pe->metric_name); /* ... cleanup. */ metricgroup__rblist_exit(&metric_events); runtime_stat__exit(&st); evlist__free_stats(evlist); perf_cpu_map__put(cpus); evlist__delete(evlist); return err; } static int test__parsing(struct test_suite *test __maybe_unused, int subtest __maybe_unused) { int failures = 0; pmu_for_each_core_event(test__parsing_callback, &failures); pmu_for_each_sys_event(test__parsing_callback, &failures); return failures == 0 ? TEST_OK : TEST_FAIL; } 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); ctx = expr__ctx_new(); if (!ctx) { pr_debug("expr__ctx_new failed"); return TEST_FAIL; } if (expr__find_ids(str, NULL, ctx) < 0) { pr_err("expr__find_ids 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_val(ctx, strdup(cur->pkey), i++); hashmap__for_each_entry(ctx->ids, cur, bkt) { if (check_parse_fake(cur->pkey)) { pr_err("check_parse_fake failed\n"); goto out; } } ret = 0; if (expr__parse(&result, ctx, str)) { /* * Parsing failed, make numbers go from large to small which can * resolve divide by zero issues. */ i = 1024; hashmap__for_each_entry(ctx->ids, cur, bkt) expr__add_id_val(ctx, strdup(cur->pkey), i--); if (expr__parse(&result, ctx, str)) { pr_err("expr__parse failed\n"); ret = -1; } } out: expr__ctx_free(ctx); return ret; } static int test__parsing_fake_callback(const struct pmu_event *pe, const struct pmu_events_table *table __maybe_unused, void *data __maybe_unused) { if (!pe->metric_expr) return 0; return metric_parse_fake(pe->metric_expr); } /* * Parse all the metrics for current architecture, * or all defined cpus via the 'fake_pmu' * in parse_events. */ static int test__parsing_fake(struct test_suite *test __maybe_unused, int subtest __maybe_unused) { int err = 0; for (size_t i = 0; i < ARRAY_SIZE(metrics); i++) { err = metric_parse_fake(metrics[i].str); if (err) return err; } err = pmu_for_each_core_event(test__parsing_fake_callback, NULL); if (err) return err; return pmu_for_each_sys_event(test__parsing_fake_callback, NULL); } static struct test_case pmu_events_tests[] = { TEST_CASE("PMU event table sanity", pmu_event_table), TEST_CASE("PMU event map aliases", aliases), TEST_CASE_REASON("Parsing of PMU event table metrics", parsing, "some metrics failed"), TEST_CASE("Parsing of PMU event table metrics with fake PMUs", parsing_fake), { .name = NULL, } }; struct test_suite suite__pmu_events = { .desc = "PMU events", .test_cases = pmu_events_tests, };