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AJvYcCXft5j2WZuRB4xRc7UpPe2JrALX+PZBvW8D+kiFEhgW/gZtIihAmkoz9JQrPS0jDu15v+Lbhp6MtUILrQ==@lists.infradead.org X-Gm-Message-State: AOJu0YzHe0BxP3lTxswoYiZXvXJqulgARYz3DEXI8loSy2Hxj02zoY9Q gdhXASTkQQwHzF1TIKMFQfGYUisYFZYGLIBDrViGqb2NvhQAPuMBTHJwN247sP+qAEx5+7tlC5W C3qRH9w== X-Google-Smtp-Source: AGHT+IGP7PL/RMy/It9PScbVC2X+jH+eqAEL95lIMDqaAQGQUShkH4NAm1SwHY2/IvlM+vSWSNYh1/DSNv1g X-Received: from pjbpd6.prod.google.com ([2002:a17:90b:1dc6:b0:2fa:15aa:4d1e]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:53c8:b0:2fa:157e:c78e with SMTP id 98e67ed59e1d1-300ff0a441cmr1509149a91.7.1741636543305; Mon, 10 Mar 2025 12:55:43 -0700 (PDT) Date: Mon, 10 Mar 2025 12:55:18 -0700 In-Reply-To: <20250310195518.2012571-1-irogers@google.com> Mime-Version: 1.0 References: <20250310195518.2012571-1-irogers@google.com> X-Mailer: git-send-email 2.49.0.rc0.332.g42c0ae87b1-goog Message-ID: <20250310195518.2012571-3-irogers@google.com> Subject: [PATCH v1 2/2] Revert "perf evsel: Add alternate_hw_config and use in evsel__match" From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , Paul Walmsley , Palmer Dabbelt , Albert Ou , James Clark , Dominique Martinet , Yang Jihong , Yang Li , Weilin Wang , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Leo Yan X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250310_125545_411489_3876753E X-CRM114-Status: GOOD ( 21.20 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org This reverts commit 22a4db3c36034e2b034c5b88414680857fc59cf4. Now legacy events are prioritized there is no need to worry about a sysfs/json event being used when trying to pattern match a legacy event. Signed-off-by: Ian Rogers --- tools/perf/builtin-diff.c | 6 ++-- tools/perf/util/evsel.c | 21 ------------- tools/perf/util/evsel.h | 19 ++++++++++-- tools/perf/util/parse-events.c | 55 +++++++++++++--------------------- tools/perf/util/parse-events.h | 8 +---- tools/perf/util/parse-events.y | 2 +- tools/perf/util/pmu.c | 6 +--- tools/perf/util/pmu.h | 2 +- 8 files changed, 45 insertions(+), 74 deletions(-) diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c index ae490d58af92..b49c1dc1fd96 100644 --- a/tools/perf/builtin-diff.c +++ b/tools/perf/builtin-diff.c @@ -470,13 +470,13 @@ static int diff__process_sample_event(const struct perf_tool *tool, static struct perf_diff pdiff; -static struct evsel *evsel_match(struct evsel *evsel, struct evlist *evlist) +static struct evsel *evsel_match(struct evsel *evsel, + struct evlist *evlist) { struct evsel *e; evlist__for_each_entry(evlist, e) { - if ((evsel->core.attr.type == e->core.attr.type) && - (evsel->core.attr.config == e->core.attr.config)) + if (evsel__match2(evsel, e)) return e; } diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 4a0ef095db92..5566232f9bb9 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -404,7 +404,6 @@ void evsel__init(struct evsel *evsel, evsel->collect_stat = false; evsel->group_pmu_name = NULL; evsel->skippable = false; - evsel->alternate_hw_config = PERF_COUNT_HW_MAX; evsel->script_output_type = -1; // FIXME: OUTPUT_TYPE_UNSET, see builtin-script.c } @@ -551,8 +550,6 @@ struct evsel *evsel__clone(struct evsel *dest, struct evsel *orig) if (evsel__copy_config_terms(evsel, orig) < 0) goto out_err; - evsel->alternate_hw_config = orig->alternate_hw_config; - return evsel; out_err: @@ -1848,24 +1845,6 @@ static int evsel__read_group(struct evsel *leader, int cpu_map_idx, int thread) return evsel__process_group_data(leader, cpu_map_idx, thread, data); } -bool __evsel__match(const struct evsel *evsel, u32 type, u64 config) -{ - - u32 e_type = evsel->core.attr.type; - u64 e_config = evsel->core.attr.config; - - if (e_type != type) { - return type == PERF_TYPE_HARDWARE && evsel->pmu && evsel->pmu->is_core && - evsel->alternate_hw_config == config; - } - - if ((type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE) && - perf_pmus__supports_extended_type()) - e_config &= PERF_HW_EVENT_MASK; - - return e_config == config; -} - int evsel__read_counter(struct evsel *evsel, int cpu_map_idx, int thread) { if (evsel__is_tool(evsel)) diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index aae431d63d64..c199481d3338 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -87,7 +87,6 @@ struct evsel { int bpf_fd; struct bpf_object *bpf_obj; struct list_head config_terms; - u64 alternate_hw_config; }; /* @@ -370,10 +369,26 @@ u64 format_field__intval(struct tep_format_field *field, struct perf_sample *sam struct tep_format_field *evsel__field(struct evsel *evsel, const char *name); struct tep_format_field *evsel__common_field(struct evsel *evsel, const char *name); -bool __evsel__match(const struct evsel *evsel, u32 type, u64 config); +static inline bool __evsel__match(const struct evsel *evsel, u32 type, u64 config) +{ + if (evsel->core.attr.type != type) + return false; + + if ((type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE) && + perf_pmus__supports_extended_type()) + return (evsel->core.attr.config & PERF_HW_EVENT_MASK) == config; + + return evsel->core.attr.config == config; +} #define evsel__match(evsel, t, c) __evsel__match(evsel, PERF_TYPE_##t, PERF_COUNT_##c) +static inline bool evsel__match2(struct evsel *e1, struct evsel *e2) +{ + return (e1->core.attr.type == e2->core.attr.type) && + (e1->core.attr.config == e2->core.attr.config); +} + int evsel__read_counter(struct evsel *evsel, int cpu_map_idx, int thread); int __evsel__read_on_cpu(struct evsel *evsel, int cpu_map_idx, int thread, bool scale); diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 04bb70ba4292..a71492829c58 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -229,7 +229,7 @@ __add_event(struct list_head *list, int *idx, bool init_attr, const char *name, const char *metric_id, struct perf_pmu *pmu, struct list_head *config_terms, bool auto_merge_stats, - struct perf_cpu_map *cpu_list, u64 alternate_hw_config) + struct perf_cpu_map *cpu_list) { struct evsel *evsel; struct perf_cpu_map *cpus = perf_cpu_map__is_empty(cpu_list) && pmu ? pmu->cpus : cpu_list; @@ -264,7 +264,6 @@ __add_event(struct list_head *list, int *idx, evsel->core.is_pmu_core = pmu ? pmu->is_core : false; evsel->auto_merge_stats = auto_merge_stats; evsel->pmu = pmu; - evsel->alternate_hw_config = alternate_hw_config; if (name) evsel->name = strdup(name); @@ -287,19 +286,16 @@ struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr, { return __add_event(/*list=*/NULL, &idx, attr, /*init_attr=*/false, name, metric_id, pmu, /*config_terms=*/NULL, - /*auto_merge_stats=*/false, /*cpu_list=*/NULL, - /*alternate_hw_config=*/PERF_COUNT_HW_MAX); + /*auto_merge_stats=*/false, /*cpu_list=*/NULL); } static int add_event(struct list_head *list, int *idx, struct perf_event_attr *attr, const char *name, - const char *metric_id, struct list_head *config_terms, - u64 alternate_hw_config) + const char *metric_id, struct list_head *config_terms) { return __add_event(list, idx, attr, /*init_attr*/true, name, metric_id, /*pmu=*/NULL, config_terms, - /*auto_merge_stats=*/false, /*cpu_list=*/NULL, - alternate_hw_config) ? 0 : -ENOMEM; + /*auto_merge_stats=*/false, /*cpu_list=*/NULL) ? 0 : -ENOMEM; } /** @@ -423,7 +419,7 @@ bool parse_events__filter_pmu(const struct parse_events_state *parse_state, static int parse_events_add_pmu(struct parse_events_state *parse_state, struct list_head *list, struct perf_pmu *pmu, const struct parse_events_terms *const_parsed_terms, - bool auto_merge_stats, u64 alternate_hw_config); + bool auto_merge_stats); int parse_events_add_cache(struct list_head *list, int *idx, const char *name, struct parse_events_state *parse_state, @@ -449,8 +445,7 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name, */ ret = parse_events_add_pmu(parse_state, list, pmu, parsed_terms, - perf_pmu__auto_merge_stats(pmu), - /*alternate_hw_config=*/PERF_COUNT_HW_MAX); + perf_pmu__auto_merge_stats(pmu)); if (ret) return ret; continue; @@ -481,8 +476,7 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name, if (__add_event(list, idx, &attr, /*init_attr*/true, config_name ?: name, metric_id, pmu, &config_terms, /*auto_merge_stats=*/false, - /*cpu_list=*/NULL, - /*alternate_hw_config=*/PERF_COUNT_HW_MAX) == NULL) + /*cpu_list=*/NULL) == NULL) return -ENOMEM; free_config_terms(&config_terms); @@ -750,7 +744,7 @@ int parse_events_add_breakpoint(struct parse_events_state *parse_state, name = get_config_name(head_config); return add_event(list, &parse_state->idx, &attr, name, /*mertic_id=*/NULL, - &config_terms, /*alternate_hw_config=*/PERF_COUNT_HW_MAX); + &config_terms); } static int check_type_val(struct parse_events_term *term, @@ -1354,9 +1348,8 @@ static int __parse_events_add_numeric(struct parse_events_state *parse_state, name = get_config_name(head_config); metric_id = get_config_metric_id(head_config); ret = __add_event(list, &parse_state->idx, &attr, /*init_attr*/true, name, - metric_id, pmu, &config_terms, /*auto_merge_stats=*/false, - /*cpu_list=*/NULL, /*alternate_hw_config=*/PERF_COUNT_HW_MAX - ) == NULL ? -ENOMEM : 0; + metric_id, pmu, &config_terms, /*auto_merge_stats=*/false, + /*cpu_list=*/NULL) ? 0 : -ENOMEM; free_config_terms(&config_terms); return ret; } @@ -1407,7 +1400,7 @@ static bool config_term_percore(struct list_head *config_terms) static int parse_events_add_pmu(struct parse_events_state *parse_state, struct list_head *list, struct perf_pmu *pmu, const struct parse_events_terms *const_parsed_terms, - bool auto_merge_stats, u64 alternate_hw_config) + bool auto_merge_stats) { struct perf_event_attr attr; struct perf_pmu_info info; @@ -1444,7 +1437,7 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state, /*init_attr=*/true, /*name=*/NULL, /*metric_id=*/NULL, pmu, /*config_terms=*/NULL, auto_merge_stats, - /*cpu_list=*/NULL, alternate_hw_config); + /*cpu_list=*/NULL); return evsel ? 0 : -ENOMEM; } @@ -1465,8 +1458,7 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state, /* Look for event names in the terms and rewrite into format based terms. */ if (perf_pmu__check_alias(pmu, &parsed_terms, - &info, &alias_rewrote_terms, - &alternate_hw_config, err)) { + &info, &alias_rewrote_terms, err)) { parse_events_terms__exit(&parsed_terms); return -EINVAL; } @@ -1513,8 +1505,7 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state, evsel = __add_event(list, &parse_state->idx, &attr, /*init_attr=*/true, get_config_name(&parsed_terms), get_config_metric_id(&parsed_terms), pmu, - &config_terms, auto_merge_stats, /*cpu_list=*/NULL, - alternate_hw_config); + &config_terms, auto_merge_stats, /*cpu_list=*/NULL); if (!evsel) { parse_events_terms__exit(&parsed_terms); return -ENOMEM; @@ -1535,7 +1526,7 @@ static int parse_events_add_pmu(struct parse_events_state *parse_state, } int parse_events_multi_pmu_add(struct parse_events_state *parse_state, - const char *event_name, u64 hw_config, + const char *event_name, const struct parse_events_terms *const_parsed_terms, struct list_head **listp, void *loc_) { @@ -1588,7 +1579,7 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state, auto_merge_stats = perf_pmu__auto_merge_stats(pmu); if (!parse_events_add_pmu(parse_state, list, pmu, - &parsed_terms, auto_merge_stats, hw_config)) { + &parsed_terms, auto_merge_stats)) { struct strbuf sb; strbuf_init(&sb, /*hint=*/ 0); @@ -1601,7 +1592,7 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state, if (parse_state->fake_pmu) { if (!parse_events_add_pmu(parse_state, list, perf_pmus__fake_pmu(), &parsed_terms, - /*auto_merge_stats=*/true, hw_config)) { + /*auto_merge_stats=*/true)) { struct strbuf sb; strbuf_init(&sb, /*hint=*/ 0); @@ -1642,15 +1633,13 @@ int parse_events_multi_pmu_add_or_add_pmu(struct parse_events_state *parse_state /* Attempt to add to list assuming event_or_pmu is a PMU name. */ pmu = perf_pmus__find(event_or_pmu); if (pmu && !parse_events_add_pmu(parse_state, *listp, pmu, const_parsed_terms, - /*auto_merge_stats=*/false, - /*alternate_hw_config=*/PERF_COUNT_HW_MAX)) + /*auto_merge_stats=*/false)) return 0; if (parse_state->fake_pmu) { if (!parse_events_add_pmu(parse_state, *listp, perf_pmus__fake_pmu(), const_parsed_terms, - /*auto_merge_stats=*/false, - /*alternate_hw_config=*/PERF_COUNT_HW_MAX)) + /*auto_merge_stats=*/false)) return 0; } @@ -1663,8 +1652,7 @@ int parse_events_multi_pmu_add_or_add_pmu(struct parse_events_state *parse_state if (!parse_events_add_pmu(parse_state, *listp, pmu, const_parsed_terms, - auto_merge_stats, - /*alternate_hw_config=*/PERF_COUNT_HW_MAX)) { + auto_merge_stats)) { ok++; parse_state->wild_card_pmus = true; } @@ -1675,8 +1663,7 @@ int parse_events_multi_pmu_add_or_add_pmu(struct parse_events_state *parse_state /* Failure to add, assume event_or_pmu is an event name. */ zfree(listp); - if (!parse_events_multi_pmu_add(parse_state, event_or_pmu, PERF_COUNT_HW_MAX, - const_parsed_terms, listp, loc)) + if (!parse_events_multi_pmu_add(parse_state, event_or_pmu, const_parsed_terms, listp, loc)) return 0; if (asprintf(&help, "Unable to find PMU or event on a PMU of '%s'", event_or_pmu) < 0) diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index e176a34ab088..0edb8b14e522 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -128,12 +128,6 @@ struct parse_events_term { * value is assumed to be 1. An event name also has no value. */ bool no_value; - /** - * @alternate_hw_config: config is the event name but num is an - * alternate PERF_TYPE_HARDWARE config value which is often nice for the - * sake of quick matching. - */ - bool alternate_hw_config; }; struct parse_events_error { @@ -244,7 +238,7 @@ struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr, struct perf_pmu *pmu); int parse_events_multi_pmu_add(struct parse_events_state *parse_state, - const char *event_name, u64 hw_config, + const char *event_name, const struct parse_events_terms *const_parsed_terms, struct list_head **listp, void *loc); diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index f888cbb076d6..5c4669264177 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -290,7 +290,7 @@ PE_NAME sep_dc struct list_head *list; int err; - err = parse_events_multi_pmu_add(_parse_state, $1, PERF_COUNT_HW_MAX, NULL, &list, &@1); + err = parse_events_multi_pmu_add(_parse_state, $1, NULL, &list, &@1); if (err < 0) { struct parse_events_state *parse_state = _parse_state; struct parse_events_error *error = parse_state->error; diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 57450c73fb63..7b32b9638d5f 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -1662,7 +1662,7 @@ static int check_info_data(struct perf_pmu *pmu, */ int perf_pmu__check_alias(struct perf_pmu *pmu, struct parse_events_terms *head_terms, struct perf_pmu_info *info, bool *rewrote_terms, - u64 *alternate_hw_config, struct parse_events_error *err) + struct parse_events_error *err) { struct parse_events_term *term, *h; struct perf_pmu_alias *alias; @@ -1699,7 +1699,6 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct parse_events_terms *head_ NULL); return ret; } - *rewrote_terms = true; ret = check_info_data(pmu, alias, info, err, term->err_term); if (ret) @@ -1708,9 +1707,6 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct parse_events_terms *head_ if (alias->per_pkg) info->per_pkg = true; - if (term->alternate_hw_config) - *alternate_hw_config = term->val.num; - list_del_init(&term->list); parse_events_term__delete(term); } diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index b93014cc3670..71b979a4a9dc 100644 --- a/tools/perf/util/pmu.h +++ b/tools/perf/util/pmu.h @@ -231,7 +231,7 @@ __u64 perf_pmu__format_bits(struct perf_pmu *pmu, const char *name); int perf_pmu__format_type(struct perf_pmu *pmu, const char *name); int perf_pmu__check_alias(struct perf_pmu *pmu, struct parse_events_terms *head_terms, struct perf_pmu_info *info, bool *rewrote_terms, - u64 *alternate_hw_config, struct parse_events_error *err); + struct parse_events_error *err); int perf_pmu__find_event(struct perf_pmu *pmu, const char *event, void *state, pmu_event_callback cb); void perf_pmu_format__set_value(void *format, int config, unsigned long *bits);