Lines Matching full:pmu
20 #include "pmu.h"
22 #include <util/pmu-bison.h>
23 #include <util/pmu-flex.h>
41 * pmu-events.c, created by parsing the pmu-events json files.
61 * differ from the PMU name as it won't have suffixes.
116 static int pmu_aliases_parse(struct perf_pmu *pmu);
159 static void perf_pmu_format__load(const struct perf_pmu *pmu, struct perf_pmu_format *format) in perf_pmu_format__load() argument
167 if (!perf_pmu__pathname_scnprintf(path, sizeof(path), pmu->name, "format")) in perf_pmu_format__load()
185 int perf_pmu__format_parse(struct perf_pmu *pmu, int dirfd, bool eager_load) in perf_pmu__format_parse() argument
202 format = perf_pmu__new_format(&pmu->format, name); in perf_pmu__format_parse()
231 * Reading/parsing the default pmu format definition, which should be
235 static int pmu_format(struct perf_pmu *pmu, int dirfd, const char *name) in pmu_format() argument
244 if (perf_pmu__format_parse(pmu, fd, /*eager_load=*/false)) in pmu_format()
287 static int perf_pmu__parse_scale(struct perf_pmu *pmu, struct perf_pmu_alias *alias) in perf_pmu__parse_scale() argument
299 scnprintf(path + len, sizeof(path) - len, "%s/events/%s.scale", pmu->name, alias->name); in perf_pmu__parse_scale()
323 static int perf_pmu__parse_unit(struct perf_pmu *pmu, struct perf_pmu_alias *alias) in perf_pmu__parse_unit() argument
334 scnprintf(path + len, sizeof(path) - len, "%s/events/%s.unit", pmu->name, alias->name); in perf_pmu__parse_unit()
359 perf_pmu__parse_per_pkg(struct perf_pmu *pmu, struct perf_pmu_alias *alias) in perf_pmu__parse_per_pkg() argument
368 scnprintf(path + len, sizeof(path) - len, "%s/events/%s.per-pkg", pmu->name, alias->name); in perf_pmu__parse_per_pkg()
380 static int perf_pmu__parse_snapshot(struct perf_pmu *pmu, struct perf_pmu_alias *alias) in perf_pmu__parse_snapshot() argument
389 scnprintf(path + len, sizeof(path) - len, "%s/events/%s.snapshot", pmu->name, alias->name); in perf_pmu__parse_snapshot()
412 static void perf_pmu__del_aliases(struct perf_pmu *pmu) in perf_pmu__del_aliases() argument
416 list_for_each_entry_safe(alias, tmp, &pmu->aliases, list) { in perf_pmu__del_aliases()
422 static struct perf_pmu_alias *perf_pmu__find_alias(struct perf_pmu *pmu, in perf_pmu__find_alias() argument
428 if (load && !pmu->sysfs_aliases_loaded) in perf_pmu__find_alias()
429 pmu_aliases_parse(pmu); in perf_pmu__find_alias()
431 list_for_each_entry(alias, &pmu->aliases, list) { in perf_pmu__find_alias()
456 static void read_alias_info(struct perf_pmu *pmu, struct perf_pmu_alias *alias) in read_alias_info() argument
464 perf_pmu__parse_unit(pmu, alias); in read_alias_info()
465 perf_pmu__parse_scale(pmu, alias); in read_alias_info()
466 perf_pmu__parse_per_pkg(pmu, alias); in read_alias_info()
467 perf_pmu__parse_snapshot(pmu, alias); in read_alias_info()
471 struct perf_pmu *pmu; member
482 read_alias_info(data->pmu, data->alias); in update_alias()
501 static int perf_pmu__new_alias(struct perf_pmu *pmu, const char *name, in perf_pmu__new_alias() argument
510 if (perf_pmu__find_alias(pmu, name, /*load=*/ false)) { in perf_pmu__new_alias()
521 pmu_name = pe->pmu; in perf_pmu__new_alias()
558 .pmu = pmu, in perf_pmu__new_alias()
563 if (pmu->events_table) { in perf_pmu__new_alias()
564 if (pmu_events_table__find_event(pmu->events_table, pmu, name, in perf_pmu__new_alias()
566 pmu->loaded_json_aliases++; in perf_pmu__new_alias()
571 pmu->sysfs_aliases++; in perf_pmu__new_alias()
573 pmu->loaded_json_aliases++; in perf_pmu__new_alias()
574 list_add_tail(&alias->list, &pmu->aliases); in perf_pmu__new_alias()
596 * Reading the pmu event aliases definition, which should be located at:
599 static int pmu_aliases_parse(struct perf_pmu *pmu) in pmu_aliases_parse() argument
610 scnprintf(path + len, sizeof(path) - len, "%s/events", pmu->name); in pmu_aliases_parse()
614 pmu->sysfs_aliases_loaded = true; in pmu_aliases_parse()
648 if (perf_pmu__new_alias(pmu, name, /*desc=*/ NULL, in pmu_aliases_parse()
656 pmu->sysfs_aliases_loaded = true; in pmu_aliases_parse()
699 struct perf_pmu pmu = {.name = pmu_name}; in pmu_cpumask() local
704 file = perf_pmu__open_file_at(&pmu, dirfd, *template); in pmu_cpumask()
745 * is_sysfs_pmu_core() - PMU CORE devices have different name other than cpu in
749 * @name: The PMU name such as "cpu_atom".
760 char *perf_pmu__getcpuid(struct perf_pmu *pmu) in perf_pmu__getcpuid() argument
769 cpuid = get_cpuid_str(pmu); in perf_pmu__getcpuid()
818 * pmu_uncore_alias_match - does name match the PMU name?
822 * @name: a real full PMU name as from sysfs.
837 * uncore alias may be from different PMU with common prefix in pmu_uncore_alias_match()
847 * list of tokens, orderly contained in the matching PMU name. in pmu_uncore_alias_match()
849 * Example: For alias "socket,pmuname" and PMU "socketX_pmunameY", we in pmu_uncore_alias_match()
900 struct perf_pmu *pmu = vdata; in pmu_add_cpu_aliases_map_callback() local
902 perf_pmu__new_alias(pmu, pe->name, pe->desc, pe->event, /*val_fd=*/ NULL, pe); in pmu_add_cpu_aliases_map_callback()
908 * PMU and add them to the list 'head'.
910 void pmu_add_cpu_aliases_table(struct perf_pmu *pmu, const struct pmu_events_table *table) in pmu_add_cpu_aliases_table() argument
912 pmu_events_table__for_each_event(table, pmu, pmu_add_cpu_aliases_map_callback, pmu); in pmu_add_cpu_aliases_table()
915 static void pmu_add_cpu_aliases(struct perf_pmu *pmu) in pmu_add_cpu_aliases() argument
917 if (!pmu->events_table) in pmu_add_cpu_aliases()
920 if (pmu->cpu_aliases_added) in pmu_add_cpu_aliases()
923 pmu_add_cpu_aliases_table(pmu, pmu->events_table); in pmu_add_cpu_aliases()
924 pmu->cpu_aliases_added = true; in pmu_add_cpu_aliases()
931 struct perf_pmu *pmu = vdata; in pmu_add_sys_aliases_iter_fn() local
933 if (!pe->compat || !pe->pmu) in pmu_add_sys_aliases_iter_fn()
936 if (pmu_uncore_alias_match(pe->pmu, pmu->name) && in pmu_add_sys_aliases_iter_fn()
937 pmu_uncore_identifier_match(pe->compat, pmu->id)) { in pmu_add_sys_aliases_iter_fn()
938 perf_pmu__new_alias(pmu, in pmu_add_sys_aliases_iter_fn()
949 void pmu_add_sys_aliases(struct perf_pmu *pmu) in pmu_add_sys_aliases() argument
951 if (!pmu->id) in pmu_add_sys_aliases()
954 pmu_for_each_sys_event(pmu_add_sys_aliases_iter_fn, pmu); in pmu_add_sys_aliases()
957 static char *pmu_find_alias_name(struct perf_pmu *pmu, int dirfd) in pmu_find_alias_name() argument
959 FILE *file = perf_pmu__open_file_at(pmu, dirfd, "alias"); in pmu_find_alias_name()
980 static int pmu_max_precise(int dirfd, struct perf_pmu *pmu) in pmu_max_precise() argument
984 perf_pmu__scan_file_at(pmu, dirfd, "caps/max_precise", "%d", &max_precise); in pmu_max_precise()
989 perf_pmu__arch_init(struct perf_pmu *pmu __maybe_unused) in perf_pmu__arch_init()
995 struct perf_pmu *pmu; in perf_pmu__lookup() local
998 pmu = zalloc(sizeof(*pmu)); in perf_pmu__lookup()
999 if (!pmu) in perf_pmu__lookup()
1002 pmu->name = strdup(name); in perf_pmu__lookup()
1003 if (!pmu->name) in perf_pmu__lookup()
1007 * Read type early to fail fast if a lookup name isn't a PMU. Ensure in perf_pmu__lookup()
1010 if (perf_pmu__scan_file_at(pmu, dirfd, "type", "%u", &type) != 1) in perf_pmu__lookup()
1013 INIT_LIST_HEAD(&pmu->format); in perf_pmu__lookup()
1014 INIT_LIST_HEAD(&pmu->aliases); in perf_pmu__lookup()
1015 INIT_LIST_HEAD(&pmu->caps); in perf_pmu__lookup()
1018 * The pmu data we store & need consists of the pmu in perf_pmu__lookup()
1022 if (pmu_format(pmu, dirfd, name)) { in perf_pmu__lookup()
1023 free(pmu); in perf_pmu__lookup()
1026 pmu->is_core = is_pmu_core(name); in perf_pmu__lookup()
1027 pmu->cpus = pmu_cpumask(dirfd, name, pmu->is_core); in perf_pmu__lookup()
1029 pmu->type = type; in perf_pmu__lookup()
1030 pmu->is_uncore = pmu_is_uncore(dirfd, name); in perf_pmu__lookup()
1031 if (pmu->is_uncore) in perf_pmu__lookup()
1032 pmu->id = pmu_id(name); in perf_pmu__lookup()
1033 pmu->max_precise = pmu_max_precise(dirfd, pmu); in perf_pmu__lookup()
1034 pmu->alias_name = pmu_find_alias_name(pmu, dirfd); in perf_pmu__lookup()
1035 pmu->events_table = perf_pmu__find_events_table(pmu); in perf_pmu__lookup()
1036 pmu_add_sys_aliases(pmu); in perf_pmu__lookup()
1037 list_add_tail(&pmu->list, pmus); in perf_pmu__lookup()
1039 perf_pmu__arch_init(pmu); in perf_pmu__lookup()
1041 return pmu; in perf_pmu__lookup()
1043 zfree(&pmu->name); in perf_pmu__lookup()
1044 free(pmu); in perf_pmu__lookup()
1048 /* Creates the PMU when sysfs scanning fails. */
1051 struct perf_pmu *pmu = zalloc(sizeof(*pmu)); in perf_pmu__create_placeholder_core_pmu() local
1053 if (!pmu) in perf_pmu__create_placeholder_core_pmu()
1056 pmu->name = strdup("cpu"); in perf_pmu__create_placeholder_core_pmu()
1057 if (!pmu->name) { in perf_pmu__create_placeholder_core_pmu()
1058 free(pmu); in perf_pmu__create_placeholder_core_pmu()
1062 pmu->is_core = true; in perf_pmu__create_placeholder_core_pmu()
1063 pmu->type = PERF_TYPE_RAW; in perf_pmu__create_placeholder_core_pmu()
1064 pmu->cpus = cpu_map__online(); in perf_pmu__create_placeholder_core_pmu()
1066 INIT_LIST_HEAD(&pmu->format); in perf_pmu__create_placeholder_core_pmu()
1067 INIT_LIST_HEAD(&pmu->aliases); in perf_pmu__create_placeholder_core_pmu()
1068 INIT_LIST_HEAD(&pmu->caps); in perf_pmu__create_placeholder_core_pmu()
1069 list_add_tail(&pmu->list, core_pmus); in perf_pmu__create_placeholder_core_pmu()
1070 return pmu; in perf_pmu__create_placeholder_core_pmu()
1073 void perf_pmu__warn_invalid_formats(struct perf_pmu *pmu) in perf_pmu__warn_invalid_formats() argument
1077 if (pmu->formats_checked) in perf_pmu__warn_invalid_formats()
1080 pmu->formats_checked = true; in perf_pmu__warn_invalid_formats()
1082 /* fake pmu doesn't have format list */ in perf_pmu__warn_invalid_formats()
1083 if (pmu == &perf_pmu__fake) in perf_pmu__warn_invalid_formats()
1086 list_for_each_entry(format, &pmu->format, list) { in perf_pmu__warn_invalid_formats()
1087 perf_pmu_format__load(pmu, format); in perf_pmu__warn_invalid_formats()
1091 pmu->name, format->name, format->value); in perf_pmu__warn_invalid_formats()
1099 struct perf_pmu *pmu = evsel__find_pmu(evsel); in evsel__is_aux_event() local
1101 return pmu && pmu->auxtrace; in evsel__is_aux_event()
1113 void evsel__set_config_if_unset(struct perf_pmu *pmu, struct evsel *evsel, in evsel__set_config_if_unset() argument
1122 bits = perf_pmu__format_bits(pmu, config_name); in evsel__set_config_if_unset()
1145 __u64 perf_pmu__format_bits(struct perf_pmu *pmu, const char *name) in perf_pmu__format_bits() argument
1147 struct perf_pmu_format *format = pmu_find_format(&pmu->format, name); in perf_pmu__format_bits()
1160 int perf_pmu__format_type(struct perf_pmu *pmu, const char *name) in perf_pmu__format_type() argument
1162 struct perf_pmu_format *format = pmu_find_format(&pmu->format, name); in perf_pmu__format_type()
1167 perf_pmu_format__load(pmu, format); in perf_pmu__format_type()
1258 static int pmu_config_term(const struct perf_pmu *pmu, in pmu_config_term() argument
1282 format = pmu_find_format(&pmu->format, term->config); in pmu_config_term()
1284 char *pmu_term = pmu_formats_string(&pmu->format); in pmu_config_term()
1289 "unknown term '%s' for pmu '%s'", in pmu_config_term()
1290 term->config, pmu->name) < 0) in pmu_config_term()
1304 perf_pmu_format__load(pmu, format); in pmu_config_term()
1381 int perf_pmu__config_terms(const struct perf_pmu *pmu, in perf_pmu__config_terms() argument
1389 if (pmu_config_term(pmu, attr, term, terms, zero, err)) in perf_pmu__config_terms()
1399 * 2) pmu format definitions - specified by pmu parameter
1401 int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr, in perf_pmu__config() argument
1405 bool zero = !!pmu->perf_event_attr_init_default; in perf_pmu__config()
1407 return perf_pmu__config_terms(pmu, attr, head_terms, zero, err); in perf_pmu__config()
1410 static struct perf_pmu_alias *pmu_find_alias(struct perf_pmu *pmu, in pmu_find_alias() argument
1422 if (pmu_find_format(&pmu->format, term->config)) in pmu_find_alias()
1434 alias = perf_pmu__find_alias(pmu, name, /*load=*/ true); in pmu_find_alias()
1435 if (alias || pmu->cpu_aliases_added) in pmu_find_alias()
1439 if (pmu->events_table && in pmu_find_alias()
1440 pmu_events_table__find_event(pmu->events_table, pmu, name, in pmu_find_alias()
1442 pmu) == 0) { in pmu_find_alias()
1443 alias = perf_pmu__find_alias(pmu, name, /*load=*/ false); in pmu_find_alias()
1449 static int check_info_data(struct perf_pmu *pmu, in check_info_data() argument
1455 read_alias_info(pmu, alias); in check_info_data()
1496 int perf_pmu__check_alias(struct perf_pmu *pmu, struct parse_events_terms *head_terms, in perf_pmu__check_alias() argument
1516 alias = pmu_find_alias(pmu, term); in perf_pmu__check_alias()
1527 ret = check_info_data(pmu, alias, info, err, term->err_term); in perf_pmu__check_alias()
1568 int perf_pmu__find_event(struct perf_pmu *pmu, const char *event, void *state, pmu_event_callback c… in perf_pmu__find_event() argument
1577 return perf_pmu__for_each_event(pmu, /*skip_duplicate_pmus=*/ false, in perf_pmu__find_event()
1592 bool perf_pmu__has_format(const struct perf_pmu *pmu, const char *name) in perf_pmu__has_format() argument
1596 list_for_each_entry(format, &pmu->format, list) { in perf_pmu__has_format()
1608 bool perf_pmu__supports_legacy_cache(const struct perf_pmu *pmu) in perf_pmu__supports_legacy_cache() argument
1610 return pmu->is_core; in perf_pmu__supports_legacy_cache()
1613 bool perf_pmu__auto_merge_stats(const struct perf_pmu *pmu) in perf_pmu__auto_merge_stats() argument
1615 return !pmu->is_core || perf_pmus__num_core_pmus() == 1; in perf_pmu__auto_merge_stats()
1618 bool perf_pmu__have_event(struct perf_pmu *pmu, const char *name) in perf_pmu__have_event() argument
1622 if (perf_pmu__find_alias(pmu, name, /*load=*/ true) != NULL) in perf_pmu__have_event()
1624 if (pmu->cpu_aliases_added || !pmu->events_table) in perf_pmu__have_event()
1626 return pmu_events_table__find_event(pmu->events_table, pmu, name, NULL, NULL) == 0; in perf_pmu__have_event()
1629 size_t perf_pmu__num_events(struct perf_pmu *pmu) in perf_pmu__num_events() argument
1633 if (!pmu->sysfs_aliases_loaded) in perf_pmu__num_events()
1634 pmu_aliases_parse(pmu); in perf_pmu__num_events()
1636 nr = pmu->sysfs_aliases; in perf_pmu__num_events()
1638 if (pmu->cpu_aliases_added) in perf_pmu__num_events()
1639 nr += pmu->loaded_json_aliases; in perf_pmu__num_events()
1640 else if (pmu->events_table) in perf_pmu__num_events()
1641 nr += pmu_events_table__num_events(pmu->events_table, pmu) - pmu->loaded_json_aliases; in perf_pmu__num_events()
1643 return pmu->selectable ? nr + 1 : nr; in perf_pmu__num_events()
1653 static char *format_alias(char *buf, int len, const struct perf_pmu *pmu, in format_alias() argument
1658 ? pmu_name_len_no_suffix(pmu->name, /*num=*/NULL) in format_alias()
1659 : (int)strlen(pmu->name); in format_alias()
1660 int used = snprintf(buf, len, "%.*s/%s", pmu_name_len, pmu->name, alias->name); in format_alias()
1682 int perf_pmu__for_each_event(struct perf_pmu *pmu, bool skip_duplicate_pmus, in perf_pmu__for_each_event() argument
1688 .pmu = pmu, in perf_pmu__for_each_event()
1694 pmu_add_cpu_aliases(pmu); in perf_pmu__for_each_event()
1695 list_for_each_entry(event, &pmu->aliases, list) { in perf_pmu__for_each_event()
1698 info.pmu_name = event->pmu_name ?: pmu->name; in perf_pmu__for_each_event()
1704 info.name = format_alias(buf, sizeof(buf), pmu, event, in perf_pmu__for_each_event()
1706 if (pmu->is_core) { in perf_pmu__for_each_event()
1732 if (pmu->selectable) { in perf_pmu__for_each_event()
1734 snprintf(buf, sizeof(buf), "%s//", pmu->name); in perf_pmu__for_each_event()
1741 info.pmu_name = pmu->name; in perf_pmu__for_each_event()
1750 bool pmu__name_match(const struct perf_pmu *pmu, const char *pmu_name) in pmu__name_match() argument
1752 return !strcmp(pmu->name, pmu_name) || in pmu__name_match()
1753 (pmu->is_uncore && pmu_uncore_alias_match(pmu_name, pmu->name)) || in pmu__name_match()
1756 * PMU as the PMU name varies across architectures. in pmu__name_match()
1758 (pmu->is_core && !strcmp(pmu_name, "default_core")); in pmu__name_match()
1761 bool perf_pmu__is_software(const struct perf_pmu *pmu) in perf_pmu__is_software() argument
1763 if (pmu->is_core || pmu->is_uncore || pmu->auxtrace) in perf_pmu__is_software()
1765 switch (pmu->type) { in perf_pmu__is_software()
1774 return !strcmp(pmu->name, "kprobe") || !strcmp(pmu->name, "uprobe"); in perf_pmu__is_software()
1777 FILE *perf_pmu__open_file(const struct perf_pmu *pmu, const char *name) in perf_pmu__open_file() argument
1781 if (!perf_pmu__pathname_scnprintf(path, sizeof(path), pmu->name, name) || in perf_pmu__open_file()
1788 FILE *perf_pmu__open_file_at(const struct perf_pmu *pmu, int dirfd, const char *name) in perf_pmu__open_file_at() argument
1792 fd = perf_pmu__pathname_fd(dirfd, pmu->name, name, O_RDONLY); in perf_pmu__open_file_at()
1799 int perf_pmu__scan_file(const struct perf_pmu *pmu, const char *name, const char *fmt, in perf_pmu__scan_file() argument
1807 file = perf_pmu__open_file(pmu, name); in perf_pmu__scan_file()
1816 int perf_pmu__scan_file_at(const struct perf_pmu *pmu, int dirfd, const char *name, in perf_pmu__scan_file_at() argument
1824 file = perf_pmu__open_file_at(pmu, dirfd, name); in perf_pmu__scan_file_at()
1833 bool perf_pmu__file_exists(const struct perf_pmu *pmu, const char *name) in perf_pmu__file_exists() argument
1837 if (!perf_pmu__pathname_scnprintf(path, sizeof(path), pmu->name, name)) in perf_pmu__file_exists()
1867 static void perf_pmu__del_caps(struct perf_pmu *pmu) in perf_pmu__del_caps() argument
1871 list_for_each_entry_safe(caps, tmp, &pmu->caps, list) { in perf_pmu__del_caps()
1880 * Reading/parsing the given pmu capabilities, which should be located at:
1884 int perf_pmu__caps_parse(struct perf_pmu *pmu) in perf_pmu__caps_parse() argument
1892 if (pmu->caps_initialized) in perf_pmu__caps_parse()
1893 return pmu->nr_caps; in perf_pmu__caps_parse()
1895 pmu->nr_caps = 0; in perf_pmu__caps_parse()
1897 if (!perf_pmu__pathname_scnprintf(caps_path, sizeof(caps_path), pmu->name, "caps")) in perf_pmu__caps_parse()
1901 pmu->caps_initialized = true; in perf_pmu__caps_parse()
1930 (perf_pmu__new_caps(&pmu->caps, name, value) < 0)) { in perf_pmu__caps_parse()
1935 pmu->nr_caps++; in perf_pmu__caps_parse()
1941 pmu->caps_initialized = true; in perf_pmu__caps_parse()
1942 return pmu->nr_caps; in perf_pmu__caps_parse()
1945 static void perf_pmu__compute_config_masks(struct perf_pmu *pmu) in perf_pmu__compute_config_masks() argument
1949 if (pmu->config_masks_computed) in perf_pmu__compute_config_masks()
1952 list_for_each_entry(format, &pmu->format, list) { in perf_pmu__compute_config_masks()
1959 pmu->config_masks_present = true; in perf_pmu__compute_config_masks()
1960 mask = &pmu->config_masks[format->value]; in perf_pmu__compute_config_masks()
1965 pmu->config_masks_computed = true; in perf_pmu__compute_config_masks()
1968 void perf_pmu__warn_invalid_config(struct perf_pmu *pmu, __u64 config, in perf_pmu__warn_invalid_config() argument
1975 perf_pmu__compute_config_masks(pmu); in perf_pmu__warn_invalid_config()
1980 if (!pmu->config_masks_present) in perf_pmu__warn_invalid_config()
1983 bits = config & ~pmu->config_masks[config_num]; in perf_pmu__warn_invalid_config()
2063 void perf_pmu__delete(struct perf_pmu *pmu) in perf_pmu__delete() argument
2065 perf_pmu__del_formats(&pmu->format); in perf_pmu__delete()
2066 perf_pmu__del_aliases(pmu); in perf_pmu__delete()
2067 perf_pmu__del_caps(pmu); in perf_pmu__delete()
2069 perf_cpu_map__put(pmu->cpus); in perf_pmu__delete()
2071 zfree(&pmu->name); in perf_pmu__delete()
2072 zfree(&pmu->alias_name); in perf_pmu__delete()
2073 zfree(&pmu->id); in perf_pmu__delete()
2074 free(pmu); in perf_pmu__delete()