From patchwork Thu Jul 28 22:28:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ian Rogers X-Patchwork-Id: 12931780 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 025F7C04A68 for ; Thu, 28 Jul 2022 22:31:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:From:Subject:References: Mime-Version:Message-Id:In-Reply-To:Date:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=zZVyPYWZm3kociSZt2+eZ4S/46J3Uh0/0tSpAB536gg=; b=ukZuFerv2F2Lp/C8kqgGWTs4Zu AH2l8cOgL/6byp0fJr0JZ9YuhCBqzJZWr+ls26bCHQ7vQoFEGhayWx9OgRKG2AK/ciFqm7PcESHKL 50OhLIHgxNe5XCJrikS+YlLKJOtIalUcOtIhVujvys57pVVXtm/4FORdhgB3bBnfFXOZxPsjyGwPD rILq5pXHBa+5YHMTQjkf7Q/yNMLdv9xmRwk9Y6rx6tS0cjf6rNK/9WOtVB7j4sm/Cdp3+ATk+Ss/n jHx5Pms6owq7obfSC3A2N5KCvXhJJqbcyA7bB7x9UHfrpg+4QQJA5/eRzvj8LzvEqC9MiQQkK5GkM wwkIlSAA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oHC1d-00FYYp-Hw; Thu, 28 Jul 2022 22:30:37 +0000 Received: from mail-yb1-xb4a.google.com ([2607:f8b0:4864:20::b4a]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oHC02-00FXkT-Tl for linux-arm-kernel@lists.infradead.org; Thu, 28 Jul 2022 22:29:00 +0000 Received: by mail-yb1-xb4a.google.com with SMTP id k16-20020a252410000000b006718984ef63so2547638ybk.3 for ; Thu, 28 Jul 2022 15:28:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=6RGVI4+L1YSOoMKzsQCuDbeJhpK6KXCncEJhv9rjmw0=; b=igyHFloWjfYYgFfXDCg+xsnWfj46mW6TQ4bSzDcrK6IC2eoIuRt7UMlRlZRhHypfcX EyOGzmLpUiAPRiqiRUD+V0xC90V6XDSg99w4EugGFc14wgK+dSMpQmt4b9KSfQr5Ee4J G0MVGdGE+NqjYxuXVBXs0Evgufv2w7KXvkMbDEIB9SqKLWOEyGVpCXRr2f2MIfQ6nMEN 9LIQWCvnI1ickirRdcI8/QHcZdmyeLjK6wnEMKXqc1AGMYrKCLU2+OxOHtrXzU3XHKBo f0iLro8tO2t2tsHU69a8RjPMWV29Qzwfw9vBdktCgKfwbxG8ke/fX696CNnXcrkpavHB DEyA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=6RGVI4+L1YSOoMKzsQCuDbeJhpK6KXCncEJhv9rjmw0=; b=4xKJZfaBOHX4QNnu+1rxBvU3EN3yjIcMO2o86+NYvftxBEkiZw3YFNSbcrYBN6c2ZT niJTke+mLWYPgB76x5zVirxHSYuvZq1VXBhA5ITyadG0fgWRSODwSrOI4ZPoPrfB0T9S TzOkbUppcgTU/VmMaUZzQzJqw/tyN8zFuKZVIMLLs4JThObPaBmUzi68eugCDyF8uAs/ Smx5H//intD+p/eHdEQUuwWGHiGZIKl95c4BE6a2z8GdERamcJcKGSsCIl/ZT1jWMFXF cCedPPNXmqhSxk0yBY3Gc1Shv6Vq9GyGgvVWnZv9w1CP8AiqbHnGDCR+QZvZhenz1Rju E+2g== X-Gm-Message-State: ACgBeo2diSlOYdasHzNeO24vgHMG/qfg6PzWhET2DYtKTQnCZUgGnWOc CB/Ckg7ymk6ysSb2xuDlvde2gH0DMCXg X-Google-Smtp-Source: AA6agR4Tt9CZRhWR6vWG3CmnhnWvaRvYTrqEsoE7Jrnx2cAJUIXLT/H2CEox5Tsl8MkKk8PKi9x6dK2tnvNJ X-Received: from irogers.svl.corp.google.com ([2620:15c:2d4:203:fd09:96c3:28af:b08f]) (user=irogers job=sendgmr) by 2002:a5b:2c8:0:b0:671:7cc8:219c with SMTP id h8-20020a5b02c8000000b006717cc8219cmr629068ybp.325.1659047337956; Thu, 28 Jul 2022 15:28:57 -0700 (PDT) Date: Thu, 28 Jul 2022 15:28:26 -0700 In-Reply-To: <20220728222835.3254224-1-irogers@google.com> Message-Id: <20220728222835.3254224-8-irogers@google.com> Mime-Version: 1.0 References: <20220728222835.3254224-1-irogers@google.com> X-Mailer: git-send-email 2.37.1.455.g008518b4e5-goog Subject: [PATCH v2 07/16] perf pmu-events: Hide pmu_sys_event_tables From: Ian Rogers To: John Garry , Will Deacon , James Clark , Mike Leach , Leo Yan , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Andi Kleen , Zhengjun Xing , Ravi Bangoria , Kan Liang , Adrian Hunter , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org Cc: Stephane Eranian , Ian Rogers X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220728_152859_017807_C110FC4F X-CRM114-Status: GOOD ( 21.43 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Move usage of the table to pmu-events.c so it may be hidden. By abstracting the table the implementation can later be changed. Signed-off-by: Ian Rogers --- tools/perf/pmu-events/empty-pmu-events.c | 37 ++++++++++++++++++- tools/perf/pmu-events/jevents.py | 45 ++++++++++++++++++++++-- tools/perf/pmu-events/pmu-events.h | 11 +++--- tools/perf/tests/pmu-events.c | 14 +------- tools/perf/util/pmu.c | 27 -------------- tools/perf/util/pmu.h | 2 -- 6 files changed, 84 insertions(+), 52 deletions(-) diff --git a/tools/perf/pmu-events/empty-pmu-events.c b/tools/perf/pmu-events/empty-pmu-events.c index 4182a986f505..216ea0482c37 100644 --- a/tools/perf/pmu-events/empty-pmu-events.c +++ b/tools/perf/pmu-events/empty-pmu-events.c @@ -6,6 +6,8 @@ * The test cpu/soc is provided for testing. */ #include "pmu-events/pmu-events.h" +#include +#include static const struct pmu_event pme_test_soc_cpu[] = { { @@ -145,7 +147,12 @@ static const struct pmu_event pme_test_soc_sys[] = { }, }; -const struct pmu_sys_events pmu_sys_event_tables[] = { +struct pmu_sys_events { + const char *name; + const struct pmu_event *table; +}; + +static const struct pmu_sys_events pmu_sys_event_tables[] = { { .table = pme_test_soc_sys, .name = "pme_test_soc_sys", @@ -154,3 +161,31 @@ const struct pmu_sys_events pmu_sys_event_tables[] = { .table = 0 }, }; + +const struct pmu_event *find_sys_events_table(const char *name) +{ + for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0]; + tables->name; + tables++) { + if (!strcmp(tables->name, name)) + return tables->table; + } + return NULL; +} + +int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data) +{ + for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0]; + tables->name; + tables++) { + for (const struct pmu_event *pe = &tables->table[0]; + pe->name || pe->metric_group || pe->metric_name; + pe++) { + int ret = fn(pe, data); + + if (ret) + return ret; + } + } + return 0; +} diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py index 34b686d27cef..432ecb5a33f5 100755 --- a/tools/perf/pmu-events/jevents.py +++ b/tools/perf/pmu-events/jevents.py @@ -371,8 +371,14 @@ def print_mapping_table(archs: Sequence[str]) -> None: def print_system_mapping_table() -> None: """C struct mapping table array for tables from /sys directories.""" - _args.output_file.write( - '\nconst struct pmu_sys_events pmu_sys_event_tables[] = {\n') + _args.output_file.write(""" +struct pmu_sys_events { +\tconst char *name; +\tconst struct pmu_event *table; +}; + +static const struct pmu_sys_events pmu_sys_event_tables[] = { +""") for tblname in _sys_event_tables: _args.output_file.write(f"""\t{{ \t\t.table = {tblname}, @@ -383,6 +389,34 @@ def print_system_mapping_table() -> None: \t\t.table = 0 \t}, }; + +const struct pmu_event *find_sys_events_table(const char *name) +{ + for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0]; + tables->name; + tables++) { + if (!strcmp(tables->name, name)) + return tables->table; + } + return NULL; +} + +int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data) +{ + for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0]; + tables->name; + tables++) { + for (const struct pmu_event *pe = &tables->table[0]; + pe->name || pe->metric_group || pe->metric_name; + pe++) { + int ret = fn(pe, data); + + if (ret) + return ret; + } + } + return 0; +} """) @@ -414,7 +448,12 @@ def main() -> None: 'output_file', type=argparse.FileType('w'), nargs='?', default=sys.stdout) _args = ap.parse_args() - _args.output_file.write("#include \"pmu-events/pmu-events.h\"\n") + _args.output_file.write(""" +#include "pmu-events/pmu-events.h" +#include +#include + +""") archs = [] for item in os.scandir(_args.starting_dir): if not item.is_dir(): diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h index a491b117c8ac..2386212b1df0 100644 --- a/tools/perf/pmu-events/pmu-events.h +++ b/tools/perf/pmu-events/pmu-events.h @@ -43,16 +43,15 @@ struct pmu_events_map { const struct pmu_event *table; }; -struct pmu_sys_events { - const char *name; - const struct pmu_event *table; -}; - /* * Global table mapping each known CPU for the architecture to its * table of PMU events. */ extern const struct pmu_events_map pmu_events_map[]; -extern const struct pmu_sys_events pmu_sys_event_tables[]; + +const struct pmu_event *find_sys_events_table(const char *name); + +typedef int (*pmu_event_iter_fn)(const struct pmu_event *pe, void *data); +int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data); #endif diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c index 82192f1a7bf7..a39a2c99ede6 100644 --- a/tools/perf/tests/pmu-events.c +++ b/tools/perf/tests/pmu-events.c @@ -286,18 +286,6 @@ static const struct pmu_events_map *__test_pmu_get_events_map(void) return NULL; } -static const struct pmu_event *__test_pmu_get_sys_events_table(void) -{ - const struct pmu_sys_events *tables = &pmu_sys_event_tables[0]; - - for ( ; tables->name; tables++) { - if (!strcmp("pme_test_soc_sys", tables->name)) - return tables->table; - } - - return NULL; -} - static int compare_pmu_events(const struct pmu_event *e1, const struct pmu_event *e2) { if (!is_same(e1->name, e2->name)) { @@ -451,7 +439,7 @@ static int compare_alias_to_test_event(struct perf_pmu_alias *alias, static int test__pmu_event_table(struct test_suite *test __maybe_unused, int subtest __maybe_unused) { - const struct pmu_event *sys_event_tables = __test_pmu_get_sys_events_table(); + const struct pmu_event *sys_event_tables = find_sys_events_table("pme_test_soc_sys"); const struct pmu_events_map *map = __test_pmu_get_events_map(); const struct pmu_event *table; int map_events = 0, expected_events; diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 0112e1c36418..d8717c4548a4 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -868,33 +868,6 @@ static void pmu_add_cpu_aliases(struct list_head *head, struct perf_pmu *pmu) pmu_add_cpu_aliases_map(head, pmu, map); } -void pmu_for_each_sys_event(pmu_sys_event_iter_fn fn, void *data) -{ - int i = 0; - - while (1) { - const struct pmu_sys_events *event_table; - int j = 0; - - event_table = &pmu_sys_event_tables[i++]; - - if (!event_table->table) - break; - - while (1) { - const struct pmu_event *pe = &event_table->table[j++]; - int ret; - - if (!pe->name && !pe->metric_group && !pe->metric_name) - break; - - ret = fn(pe, data); - if (ret) - break; - } - } -} - struct pmu_sys_event_iter_data { struct list_head *head; struct perf_pmu *pmu; diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index 4b45fd8da5a3..7e667eec2a01 100644 --- a/tools/perf/util/pmu.h +++ b/tools/perf/util/pmu.h @@ -133,8 +133,6 @@ const struct pmu_events_map *pmu_events_map__find(void); bool pmu_uncore_alias_match(const char *pmu_name, const char *name); void perf_pmu_free_alias(struct perf_pmu_alias *alias); -typedef int (*pmu_sys_event_iter_fn)(const struct pmu_event *pe, void *data); -void pmu_for_each_sys_event(pmu_sys_event_iter_fn fn, void *data); int perf_pmu__convert_scale(const char *scale, char **end, double *sval); int perf_pmu__caps_parse(struct perf_pmu *pmu);