From 411ad22ecf0281d666a82aa7f4de90c70365da7d Mon Sep 17 00:00:00 2001 From: Ian Rogers Date: Tue, 2 May 2023 15:38:36 -0700 Subject: [PATCH] perf parse-events: Add pmu filter To support the cputype argument added to "perf stat" for hybrid it is necessary to filter events during wildcard matching. Add a scanner argument for the filter and checking it when wildcard matching. Signed-off-by: Ian Rogers Tested-by: Kan Liang Cc: Adrian Hunter Cc: Ahmad Yasin Cc: Alexander Shishkin Cc: Andi Kleen Cc: Athira Rajeev Cc: Caleb Biggers Cc: Edward Baker Cc: Florian Fischer Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Kajol Jain Cc: Kang Minchul Cc: Leo Yan Cc: Mark Rutland Cc: Namhyung Kim Cc: Perry Taylor Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: Rob Herring Cc: Samantha Alt Cc: Stephane Eranian Cc: Sumanth Korikkar Cc: Suzuki Poulouse Cc: Thomas Richter Cc: Tiezhu Yang Cc: Weilin Wang Cc: Xing Zhengjun Cc: Yang Jihong Link: https://lore.kernel.org/r/20230502223851.2234828-30-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 13 +++++++-- tools/perf/builtin-stat.c | 10 +++++-- tools/perf/builtin-top.c | 5 +++- tools/perf/builtin-trace.c | 5 +++- tools/perf/tests/parse-events.c | 3 +- tools/perf/tests/pmu-events.c | 3 +- tools/perf/util/evlist.h | 1 - tools/perf/util/metricgroup.c | 4 +-- tools/perf/util/parse-events.c | 51 ++++++++++++++++++++++++--------- tools/perf/util/parse-events.h | 21 ++++++++++---- tools/perf/util/parse-events.y | 6 ++-- 11 files changed, 90 insertions(+), 32 deletions(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index efa03e4ac2c9..ec0f2d5f189f 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -3335,6 +3335,14 @@ const char record_callchain_help[] = CALLCHAIN_RECORD_HELP static bool dry_run; +static struct parse_events_option_args parse_events_option_args = { + .evlistp = &record.evlist, +}; + +static struct parse_events_option_args switch_output_parse_events_option_args = { + .evlistp = &record.sb_evlist, +}; + /* * XXX Will stay a global variable till we fix builtin-script.c to stop messing * with it and switch to use the library functions in perf_evlist that came @@ -3343,7 +3351,7 @@ static bool dry_run; * using pipes, etc. */ static struct option __record_options[] = { - OPT_CALLBACK('e', "event", &record.evlist, "event", + OPT_CALLBACK('e', "event", &parse_events_option_args, "event", "event selector. use 'perf list' to list available events", parse_events_option), OPT_CALLBACK(0, "filter", &record.evlist, "filter", @@ -3496,7 +3504,8 @@ static struct option __record_options[] = { &record.switch_output.set, "signal or size[BKMG] or time[smhd]", "Switch output when receiving SIGUSR2 (signal) or cross a size or time threshold", "signal"), - OPT_CALLBACK_SET(0, "switch-output-event", &record.sb_evlist, &record.switch_output_event_set, "switch output event", + OPT_CALLBACK_SET(0, "switch-output-event", &switch_output_parse_events_option_args, + &record.switch_output_event_set, "switch output event", "switch output event selector. use 'perf list' to list available events", parse_events_option_new_evlist), OPT_INTEGER(0, "switch-max-files", &record.switch_output.num_files, diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index b9ad32f21e57..de2e915427c9 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -101,6 +101,10 @@ static void print_counters(struct timespec *ts, int argc, const char **argv); static struct evlist *evsel_list; +static struct parse_events_option_args parse_events_option_args = { + .evlistp = &evsel_list, +}; + static bool all_counters_use_bpf = true; static struct target target = { @@ -1096,8 +1100,8 @@ static int parse_hybrid_type(const struct option *opt, return -1; } - evlist->hybrid_pmu_name = perf_pmu__hybrid_type_to_pmu(str); - if (!evlist->hybrid_pmu_name) { + parse_events_option_args.pmu_filter = perf_pmu__hybrid_type_to_pmu(str); + if (!parse_events_option_args.pmu_filter) { fprintf(stderr, "--cputype %s is not supported!\n", str); return -1; } @@ -1108,7 +1112,7 @@ static int parse_hybrid_type(const struct option *opt, static struct option stat_options[] = { OPT_BOOLEAN('T', "transaction", &transaction_run, "hardware transaction statistics"), - OPT_CALLBACK('e', "event", &evsel_list, "event", + OPT_CALLBACK('e', "event", &parse_events_option_args, "event", "event selector. use 'perf list' to list available events", parse_events_option), OPT_CALLBACK(0, "filter", &evsel_list, "filter", diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index eb5740154bc0..48ee49e95c5e 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1440,12 +1440,15 @@ int cmd_top(int argc, const char **argv) .max_stack = sysctl__max_stack(), .nr_threads_synthesize = UINT_MAX, }; + struct parse_events_option_args parse_events_option_args = { + .evlistp = &top.evlist, + }; bool branch_call_mode = false; struct record_opts *opts = &top.record_opts; struct target *target = &opts->target; const char *disassembler_style = NULL, *objdump_path = NULL, *addr2line_path = NULL; const struct option options[] = { - OPT_CALLBACK('e', "event", &top.evlist, "event", + OPT_CALLBACK('e', "event", &parse_events_option_args, "event", "event selector. use 'perf list' to list available events", parse_events_option), OPT_U64('c', "count", &opts->user_interval, "event period to sample"), diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 8ee3a45c3c54..b49d3abb1203 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -4591,8 +4591,11 @@ do_concat: err = 0; if (lists[0]) { + struct parse_events_option_args parse_events_option_args = { + .evlistp = &trace->evlist, + }; struct option o = { - .value = &trace->evlist, + .value = &parse_events_option_args, }; err = parse_events_option(&o, lists[0], 0); } diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c index c3afd0b129bb..0d0c869d2d09 100644 --- a/tools/perf/tests/parse-events.c +++ b/tools/perf/tests/parse-events.c @@ -1952,7 +1952,8 @@ static int test_event_fake_pmu(const char *str) return -ENOMEM; parse_events_error__init(&err); - ret = __parse_events(evlist, str, &err, &perf_pmu__fake, /*warn_if_reordered=*/true); + ret = __parse_events(evlist, str, /*pmu_filter=*/NULL, &err, + &perf_pmu__fake, /*warn_if_reordered=*/true); if (ret) { pr_debug("failed to parse event '%s', err %d, str '%s'\n", str, ret, err.str); diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c index a2cde61b1c77..734004f1a37d 100644 --- a/tools/perf/tests/pmu-events.c +++ b/tools/perf/tests/pmu-events.c @@ -776,7 +776,8 @@ static int check_parse_id(const char *id, struct parse_events_error *error, for (cur = strchr(dup, '@') ; cur; cur = strchr(++cur, '@')) *cur = '/'; - ret = __parse_events(evlist, dup, error, fake_pmu, /*warn_if_reordered=*/true); + ret = __parse_events(evlist, dup, /*pmu_filter=*/NULL, error, fake_pmu, + /*warn_if_reordered=*/true); free(dup); evlist__delete(evlist); diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 46cf402add93..e7e5540cc970 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -67,7 +67,6 @@ struct evlist { struct evsel *selected; struct events_stats stats; struct perf_env *env; - const char *hybrid_pmu_name; void (*trace_event_sample_raw)(struct evlist *evlist, union perf_event *event, struct perf_sample *sample); diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index 4e7d41d285b4..908124dab122 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -1441,8 +1441,8 @@ static int parse_ids(bool metric_no_merge, struct perf_pmu *fake_pmu, } pr_debug("Parsing metric events '%s'\n", events.buf); parse_events_error__init(&parse_error); - ret = __parse_events(parsed_evlist, events.buf, &parse_error, fake_pmu, - /*warn_if_reordered=*/false); + ret = __parse_events(parsed_evlist, events.buf, /*pmu_filter=*/NULL, + &parse_error, fake_pmu, /*warn_if_reordered=*/false); if (ret) { parse_events_error__print(&parse_error, events.buf); goto err_out; diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 1d8c3cf9c185..d9d964bbc0e2 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -465,8 +465,24 @@ int parse_events__decode_legacy_cache(const char *name, int pmu_type, __u64 *con return 0; } +/** + * parse_events__filter_pmu - returns false if a wildcard PMU should be + * considered, true if it should be filtered. + */ +bool parse_events__filter_pmu(const struct parse_events_state *parse_state, + const struct perf_pmu *pmu) +{ + if (parse_state->pmu_filter == NULL) + return false; + + if (pmu->name == NULL) + return true; + + return strcmp(parse_state->pmu_filter, pmu->name) != 0; +} + int parse_events_add_cache(struct list_head *list, int *idx, const char *name, - struct parse_events_error *err, + struct parse_events_state *parse_state, struct list_head *head_config) { struct perf_pmu *pmu = NULL; @@ -483,6 +499,9 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name, if (!perf_pmu__supports_legacy_cache(pmu)) continue; + if (parse_events__filter_pmu(parse_state, pmu)) + continue; + memset(&attr, 0, sizeof(attr)); attr.type = PERF_TYPE_HW_CACHE; @@ -493,8 +512,7 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name, found_supported = true; if (head_config) { - if (config_attr(&attr, head_config, err, - config_term_common)) + if (config_attr(&attr, head_config, parse_state->error, config_term_common)) return -EINVAL; if (get_config_terms(head_config, &config_terms)) @@ -1494,6 +1512,9 @@ int parse_events_add_numeric(struct parse_events_state *parse_state, if (!perf_pmu__supports_wildcard_numeric(pmu)) continue; + if (parse_events__filter_pmu(parse_state, pmu)) + continue; + found_supported = true; ret = __parse_events_add_numeric(parse_state, list, pmu, pmu->type, config, head_config); @@ -1682,6 +1703,9 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state, while ((pmu = perf_pmu__scan(pmu)) != NULL) { struct perf_pmu_alias *alias; + if (parse_events__filter_pmu(parse_state, pmu)) + continue; + list_for_each_entry(alias, &pmu->aliases, list) { if (!strcasecmp(alias->name, str)) { parse_events_copy_term_list(head, &orig_head); @@ -2121,7 +2145,7 @@ static bool parse_events__sort_events_and_fix_groups(struct list_head *list) return idx_changed || num_leaders != orig_num_leaders; } -int __parse_events(struct evlist *evlist, const char *str, +int __parse_events(struct evlist *evlist, const char *str, const char *pmu_filter, struct parse_events_error *err, struct perf_pmu *fake_pmu, bool warn_if_reordered) { @@ -2132,6 +2156,7 @@ int __parse_events(struct evlist *evlist, const char *str, .evlist = evlist, .stoken = PE_START_EVENTS, .fake_pmu = fake_pmu, + .pmu_filter = pmu_filter, .match_legacy_cache_terms = true, }; int ret; @@ -2313,12 +2338,13 @@ void parse_events_error__print(struct parse_events_error *err, int parse_events_option(const struct option *opt, const char *str, int unset __maybe_unused) { - struct evlist *evlist = *(struct evlist **)opt->value; + struct parse_events_option_args *args = opt->value; struct parse_events_error err; int ret; parse_events_error__init(&err); - ret = parse_events(evlist, str, &err); + ret = __parse_events(*args->evlistp, str, args->pmu_filter, &err, + /*fake_pmu=*/NULL, /*warn_if_reordered=*/true); if (ret) { parse_events_error__print(&err, str); @@ -2331,22 +2357,21 @@ int parse_events_option(const struct option *opt, const char *str, int parse_events_option_new_evlist(const struct option *opt, const char *str, int unset) { - struct evlist **evlistp = opt->value; + struct parse_events_option_args *args = opt->value; int ret; - if (*evlistp == NULL) { - *evlistp = evlist__new(); + if (*args->evlistp == NULL) { + *args->evlistp = evlist__new(); - if (*evlistp == NULL) { + if (*args->evlistp == NULL) { fprintf(stderr, "Not enough memory to create evlist\n"); return -1; } } - ret = parse_events_option(opt, str, unset); if (ret) { - evlist__delete(*evlistp); - *evlistp = NULL; + evlist__delete(*args->evlistp); + *args->evlistp = NULL; } return ret; diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 77b8f7efdb94..d4cbda6e946a 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -22,17 +22,24 @@ bool is_event_supported(u8 type, u64 config); const char *event_type(int type); +/* Arguments encoded in opt->value. */ +struct parse_events_option_args { + struct evlist **evlistp; + const char *pmu_filter; +}; int parse_events_option(const struct option *opt, const char *str, int unset); int parse_events_option_new_evlist(const struct option *opt, const char *str, int unset); -__attribute__((nonnull(1, 2, 3))) -int __parse_events(struct evlist *evlist, const char *str, struct parse_events_error *error, - struct perf_pmu *fake_pmu, bool warn_if_reordered); +__attribute__((nonnull(1, 2, 4))) +int __parse_events(struct evlist *evlist, const char *str, const char *pmu_filter, + struct parse_events_error *error, struct perf_pmu *fake_pmu, + bool warn_if_reordered); __attribute__((nonnull(1, 2, 3))) static inline int parse_events(struct evlist *evlist, const char *str, struct parse_events_error *err) { - return __parse_events(evlist, str, err, /*fake_pmu=*/NULL, /*warn_if_reordered=*/true); + return __parse_events(evlist, str, /*pmu_filter=*/NULL, err, /*fake_pmu=*/NULL, + /*warn_if_reordered=*/true); } int parse_event(struct evlist *evlist, const char *str); @@ -122,11 +129,15 @@ struct parse_events_state { struct list_head *terms; int stoken; struct perf_pmu *fake_pmu; + /* If non-null, when wildcard matching only match the given PMU. */ + const char *pmu_filter; /* Should PE_LEGACY_NAME tokens be generated for config terms? */ bool match_legacy_cache_terms; bool wild_card_pmus; }; +bool parse_events__filter_pmu(const struct parse_events_state *parse_state, + const struct perf_pmu *pmu); void parse_events__shrink_config_terms(void); int parse_events__is_hardcoded_term(struct parse_events_term *term); int parse_events_term__num(struct parse_events_term **term, @@ -171,7 +182,7 @@ int parse_events_add_tool(struct parse_events_state *parse_state, struct list_head *list, int tool_event); int parse_events_add_cache(struct list_head *list, int *idx, const char *name, - struct parse_events_error *error, + struct parse_events_state *parse_state, struct list_head *head_config); int parse_events__decode_legacy_cache(const char *name, int pmu_type, __u64 *config); int parse_events_add_breakpoint(struct list_head *list, int *idx, diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index e709508b1d6e..c95877cbd6cf 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -312,6 +312,9 @@ PE_NAME opt_pmu_config while ((pmu = perf_pmu__scan(pmu)) != NULL) { char *name = pmu->name; + if (parse_events__filter_pmu(parse_state, pmu)) + continue; + if (!strncmp(name, "uncore_", 7) && strncmp($1, "uncore_", 7)) name += 7; @@ -473,13 +476,12 @@ event_legacy_cache: PE_LEGACY_CACHE opt_event_config { struct parse_events_state *parse_state = _parse_state; - struct parse_events_error *error = parse_state->error; struct list_head *list; int err; list = alloc_list(); ABORT_ON(!list); - err = parse_events_add_cache(list, &parse_state->idx, $1, error, $2); + err = parse_events_add_cache(list, &parse_state->idx, $1, parse_state, $2); parse_events_terms__delete($2); free($1);