From patchwork Fri Dec 8 17:24:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adrian Hunter X-Patchwork-Id: 13485727 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 BE476C4167B for ; Fri, 8 Dec 2023 17:26:16 +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:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=PKORBisfB6VF7zJYuDHfhQwTAUSy9kSQfQw9PIeotLw=; b=jn8STWPHgSqYyX 6L5uFQNwIjxnDhXHZeF2GktG/bp3KPEUQx4vWWIj6pFwBSoo3L7a+WO6rkITZwP3SWl6fKsj0rNfM J6+/T8BPFh0EV+m+XJb1Bq1Ri0KFsFd5ySLKB3LZ43dDev1FECqraSLgpu/eYmNEqUQrQ2gSDVrlO FZDQjYCevu3jvBuXz4jQ6D9h+Ms9l41bxa7TKjUfeMt6v178r+IBxm3S2CJNn/L5ph5WDaIvk5Yq4 L/TY1Pd+txQXBzxZK2BNvUXMCg3xIMevfKplW27/e69aknEaGBYrVCvukkD6+fIYfgGyA5kqW01j+ yGRfNFpoHmXQQ7DrbbnA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rBebp-00GAyS-1e; Fri, 08 Dec 2023 17:25:53 +0000 Received: from mgamail.intel.com ([134.134.136.126]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rBebl-00GAw8-1g for linux-arm-kernel@lists.infradead.org; Fri, 08 Dec 2023 17:25:51 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1702056349; x=1733592349; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=cAWcAFXcZ6Kpo1E866I0ZngNa4SgwSqIHT6h4WJDGxc=; b=AWQqfyFhgSHRfgE1bZ55E92PcU/47i9qCTXy2SkdHg61aGu1NSpdnwHn bz0/rOYxK+3O7VOIxrWDk6dwpGIc7wIbY2k4mBIV7S4xZgeY74HfjfH+3 p3Kz5RRtxAp8mC4b15m1ZfUPSgBgpRE7m2jkpodu2cSl5J+t9neKYJa2x iWmbdoqhpKpbtGPV1z3l7fx1fcLSHHOeS3EtyLPQ9RD/YjciMpvyItIRF ONW2RAv1ev2vDoK1fri/KwqZne4iA5CnGXKOJMwChNxTJkai3Up8Ktng/ lB2y0v1DKlAQjGmh9/c2c/KnptkW0zwkCftmdo10rDypxKjRWzKPkjZvH w==; X-IronPort-AV: E=McAfee;i="6600,9927,10918"; a="379432515" X-IronPort-AV: E=Sophos;i="6.04,261,1695711600"; d="scan'208";a="379432515" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2023 09:25:35 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10918"; a="772201691" X-IronPort-AV: E=Sophos;i="6.04,261,1695711600"; d="scan'208";a="772201691" Received: from ahunter6-mobl1.ger.corp.intel.com (HELO ahunter-VirtualBox.home\044ger.corp.intel.com) ([10.249.34.218]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2023 09:25:18 -0800 From: Adrian Hunter To: Peter Zijlstra Cc: Ingo Molnar , Mark Rutland , Alexander Shishkin , Heiko Carstens , Thomas Richter , Hendrik Brueckner , Suzuki K Poulose , Mike Leach , James Clark , coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, Yicong Yang , Jonathan Cameron , Will Deacon , Arnaldo Carvalho de Melo , Jiri Olsa , Namhyung Kim , Ian Rogers , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Subject: [PATCH RFC V2 3/4] perf tools: Add support for AUX area pause / resume Date: Fri, 8 Dec 2023 19:24:48 +0200 Message-Id: <20231208172449.35444-4-adrian.hunter@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231208172449.35444-1-adrian.hunter@intel.com> References: <20231208172449.35444-1-adrian.hunter@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231208_092549_617448_A333F465 X-CRM114-Status: GOOD ( 17.69 ) 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 Add config terms aux-pause, aux-resume and aux-start-paused. Still to do: validation, fallbacks for perf_event_open, documentation. Signed-off-by: Adrian Hunter --- tools/include/uapi/linux/perf_event.h | 11 +++++++- tools/perf/util/auxtrace.c | 4 +++ tools/perf/util/evsel.c | 9 +++++++ tools/perf/util/evsel_config.h | 6 +++++ tools/perf/util/parse-events.c | 33 +++++++++++++++++++++++ tools/perf/util/parse-events.h | 3 +++ tools/perf/util/parse-events.l | 3 +++ tools/perf/util/perf_event_attr_fprintf.c | 3 +++ 8 files changed, 71 insertions(+), 1 deletion(-) diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h index 3a64499b0f5d..9db32bc10d5b 100644 --- a/tools/include/uapi/linux/perf_event.h +++ b/tools/include/uapi/linux/perf_event.h @@ -511,7 +511,16 @@ struct perf_event_attr { __u16 sample_max_stack; __u16 __reserved_2; __u32 aux_sample_size; - __u32 __reserved_3; + + union { + __u32 aux_output_cfg; + struct { + __u64 aux_pause : 1, /* on overflow, pause AUX area tracing */ + aux_resume : 1, /* on overflow, resume AUX area tracing */ + aux_start_paused : 1, /* start AUX area tracing paused */ + __reserved_3 : 29; + }; + }; /* * User provided data if sigtrap=1, passed back to user via diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index a0368202a746..4a7ca8b0d100 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -814,6 +814,10 @@ void auxtrace_regroup_aux_output(struct evlist *evlist) if (evsel__is_aux_event(evsel)) aux_evsel = evsel; term = evsel__get_config_term(evsel, AUX_OUTPUT); + if (!term) + term = evsel__get_config_term(evsel, AUX_PAUSE); + if (!term) + term = evsel__get_config_term(evsel, AUX_RESUME); /* If possible, group with the AUX event */ if (term && aux_evsel) evlist__regroup(evlist, aux_evsel, evsel); diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index a5da74e3a517..03553c104954 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -1001,6 +1001,15 @@ static void evsel__apply_config_terms(struct evsel *evsel, case EVSEL__CONFIG_TERM_AUX_OUTPUT: attr->aux_output = term->val.aux_output ? 1 : 0; break; + case EVSEL__CONFIG_TERM_AUX_PAUSE: + attr->aux_pause = term->val.aux_pause ? 1 : 0; + break; + case EVSEL__CONFIG_TERM_AUX_RESUME: + attr->aux_resume = term->val.aux_resume ? 1 : 0; + break; + case EVSEL__CONFIG_TERM_AUX_START_PAUSED: + attr->aux_start_paused = term->val.aux_start_paused ? 1 : 0; + break; case EVSEL__CONFIG_TERM_AUX_SAMPLE_SIZE: /* Already applied by auxtrace */ break; diff --git a/tools/perf/util/evsel_config.h b/tools/perf/util/evsel_config.h index aee6f808b512..85ad183b5637 100644 --- a/tools/perf/util/evsel_config.h +++ b/tools/perf/util/evsel_config.h @@ -25,6 +25,9 @@ enum evsel_term_type { EVSEL__CONFIG_TERM_BRANCH, EVSEL__CONFIG_TERM_PERCORE, EVSEL__CONFIG_TERM_AUX_OUTPUT, + EVSEL__CONFIG_TERM_AUX_PAUSE, + EVSEL__CONFIG_TERM_AUX_RESUME, + EVSEL__CONFIG_TERM_AUX_START_PAUSED, EVSEL__CONFIG_TERM_AUX_SAMPLE_SIZE, EVSEL__CONFIG_TERM_CFG_CHG, }; @@ -44,6 +47,9 @@ struct evsel_config_term { unsigned long max_events; bool percore; bool aux_output; + bool aux_pause; + bool aux_resume; + bool aux_start_paused; u32 aux_sample_size; u64 cfg_chg; char *str; diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index aa2f5c6fc7fc..615b04d5fb30 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -768,6 +768,9 @@ static const char *config_term_name(enum parse_events__term_type term_type) [PARSE_EVENTS__TERM_TYPE_DRV_CFG] = "driver-config", [PARSE_EVENTS__TERM_TYPE_PERCORE] = "percore", [PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT] = "aux-output", + [PARSE_EVENTS__TERM_TYPE_AUX_PAUSE] = "aux-pause", + [PARSE_EVENTS__TERM_TYPE_AUX_RESUME] = "aux-resume", + [PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED] = "aux-start-paused", [PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE] = "aux-sample-size", [PARSE_EVENTS__TERM_TYPE_METRIC_ID] = "metric-id", [PARSE_EVENTS__TERM_TYPE_RAW] = "raw", @@ -817,6 +820,9 @@ config_term_avail(enum parse_events__term_type term_type, struct parse_events_er case PARSE_EVENTS__TERM_TYPE_OVERWRITE: case PARSE_EVENTS__TERM_TYPE_DRV_CFG: case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT: + case PARSE_EVENTS__TERM_TYPE_AUX_PAUSE: + case PARSE_EVENTS__TERM_TYPE_AUX_RESUME: + case PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED: case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE: case PARSE_EVENTS__TERM_TYPE_RAW: case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE: @@ -936,6 +942,15 @@ do { \ case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT: CHECK_TYPE_VAL(NUM); break; + case PARSE_EVENTS__TERM_TYPE_AUX_PAUSE: + CHECK_TYPE_VAL(NUM); + break; + case PARSE_EVENTS__TERM_TYPE_AUX_RESUME: + CHECK_TYPE_VAL(NUM); + break; + case PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED: + CHECK_TYPE_VAL(NUM); + break; case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE: CHECK_TYPE_VAL(NUM); if (term->val.num > UINT_MAX) { @@ -1036,6 +1051,9 @@ static int config_term_tracepoint(struct perf_event_attr *attr, case PARSE_EVENTS__TERM_TYPE_OVERWRITE: case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT: + case PARSE_EVENTS__TERM_TYPE_AUX_PAUSE: + case PARSE_EVENTS__TERM_TYPE_AUX_RESUME: + case PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED: case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE: return config_term_common(attr, term, err); case PARSE_EVENTS__TERM_TYPE_USER: @@ -1170,6 +1188,18 @@ do { \ ADD_CONFIG_TERM_VAL(AUX_OUTPUT, aux_output, term->val.num ? 1 : 0, term->weak); break; + case PARSE_EVENTS__TERM_TYPE_AUX_PAUSE: + ADD_CONFIG_TERM_VAL(AUX_PAUSE, aux_pause, + term->val.num ? 1 : 0, term->weak); + break; + case PARSE_EVENTS__TERM_TYPE_AUX_RESUME: + ADD_CONFIG_TERM_VAL(AUX_RESUME, aux_resume, + term->val.num ? 1 : 0, term->weak); + break; + case PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED: + ADD_CONFIG_TERM_VAL(AUX_START_PAUSED, aux_start_paused, + term->val.num ? 1 : 0, term->weak); + break; case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE: ADD_CONFIG_TERM_VAL(AUX_SAMPLE_SIZE, aux_sample_size, term->val.num, term->weak); @@ -1232,6 +1262,9 @@ static int get_config_chgs(struct perf_pmu *pmu, struct parse_events_terms *head case PARSE_EVENTS__TERM_TYPE_DRV_CFG: case PARSE_EVENTS__TERM_TYPE_PERCORE: case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT: + case PARSE_EVENTS__TERM_TYPE_AUX_PAUSE: + case PARSE_EVENTS__TERM_TYPE_AUX_RESUME: + case PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED: case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE: case PARSE_EVENTS__TERM_TYPE_METRIC_ID: case PARSE_EVENTS__TERM_TYPE_RAW: diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 63c0a36a4bf1..ff0871385b50 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -74,6 +74,9 @@ enum parse_events__term_type { PARSE_EVENTS__TERM_TYPE_DRV_CFG, PARSE_EVENTS__TERM_TYPE_PERCORE, PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT, + PARSE_EVENTS__TERM_TYPE_AUX_PAUSE, + PARSE_EVENTS__TERM_TYPE_AUX_RESUME, + PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED, PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE, PARSE_EVENTS__TERM_TYPE_METRIC_ID, PARSE_EVENTS__TERM_TYPE_RAW, diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index e86c45675e1d..56963013c3af 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -244,6 +244,9 @@ overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_OVERWRITE); } no-overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOOVERWRITE); } percore { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_PERCORE); } aux-output { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT); } +aux-pause { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_PAUSE); } +aux-resume { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_RESUME); } +aux-start-paused { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_START_PAUSED); } aux-sample-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE); } metric-id { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_METRIC_ID); } cpu-cycles|cycles { return hw_term(yyscanner, PERF_COUNT_HW_CPU_CYCLES); } diff --git a/tools/perf/util/perf_event_attr_fprintf.c b/tools/perf/util/perf_event_attr_fprintf.c index 8f04d3b7f3ec..e6ba0ac73182 100644 --- a/tools/perf/util/perf_event_attr_fprintf.c +++ b/tools/perf/util/perf_event_attr_fprintf.c @@ -309,6 +309,7 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr, PRINT_ATTRf(inherit_thread, p_unsigned); PRINT_ATTRf(remove_on_exec, p_unsigned); PRINT_ATTRf(sigtrap, p_unsigned); + PRINT_ATTRf(aux_start_paused, p_unsigned); PRINT_ATTRn("{ wakeup_events, wakeup_watermark }", wakeup_events, p_unsigned, false); PRINT_ATTRf(bp_type, p_unsigned); @@ -323,6 +324,8 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr, PRINT_ATTRf(sample_max_stack, p_unsigned); PRINT_ATTRf(aux_sample_size, p_unsigned); PRINT_ATTRf(sig_data, p_unsigned); + PRINT_ATTRf(aux_pause, p_unsigned); + PRINT_ATTRf(aux_resume, p_unsigned); return ret; }