From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 96ADBC433EF for ; Fri, 22 Apr 2022 16:26:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1446935AbiDVQ2y (ORCPT ); Fri, 22 Apr 2022 12:28:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56676 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1390577AbiDVQ1t (ORCPT ); Fri, 22 Apr 2022 12:27:49 -0400 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 779D5C52 for ; Fri, 22 Apr 2022 09:24:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1650644694; x=1682180694; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=p3ulNQ2ht9HlNWyV+bHdO7gatp7F4Zan+NkJzDLuSUM=; b=CnlG4Zmky8MXAPpwaMvi2C8M7nJkhmv8pZVisKJWes77JeZPIDEGY3pE FY0qoaVS1crBfT5zijoOdeTmTTvM/2ceHBtP3IUhkLAbxhlnhiuYDNmnm ynPcuDQn1DjjkdCo8Ll0VnMjA9zaMhRACU8owuw9CsY81+kHbEuAGfCsz JU23xxOWHPvt5NYSnPwBn6cTLMfN3W+YHUigQn5NWNdCdYV9msQib65wp chHPVs59Mr117AD6EigR+Y+AWFtV6wTP3g1QEFXTn61pNDiIKHYu07xf7 E9gnCGCOh/5Dau3j1Xh6CU1t/o/SIXrYmoXOnybPnhT8rX/Vahsfr/8tr A==; X-IronPort-AV: E=McAfee;i="6400,9594,10324"; a="264885978" X-IronPort-AV: E=Sophos;i="5.90,282,1643702400"; d="scan'208";a="264885978" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Apr 2022 09:24:43 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,282,1643702400"; d="scan'208";a="577978926" Received: from ahunter-desktop.fi.intel.com ([10.237.72.92]) by orsmga008.jf.intel.com with ESMTP; 22 Apr 2022 09:24:40 -0700 From: Adrian Hunter To: Arnaldo Carvalho de Melo Cc: Jiri Olsa , Ian Rogers , Alexey Bayduraev , Namhyung Kim , Leo Yan , linux-kernel@vger.kernel.org Subject: [PATCH RFC 13/21] perf evlist: Add evlist__add_system_wide_dummy() Date: Fri, 22 Apr 2022 19:23:54 +0300 Message-Id: <20220422162402.147958-14-adrian.hunter@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220422162402.147958-1-adrian.hunter@intel.com> References: <20220422162402.147958-1-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 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add evlist__add_system_wide_dummy() to enable creating a system-wide dummy event that sets up the system-wide maps before map propagation. For convenience, add evlist__add_aux_dummy() so that the logic can be used whether or not the event needs to be system-wide. Signed-off-by: Adrian Hunter --- tools/perf/util/evlist.c | 40 ++++++++++++++++++++++++++++++++++++++++ tools/perf/util/evlist.h | 5 +++++ 2 files changed, 45 insertions(+) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 78c47cbafbc2..58ea562ddbd2 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -264,6 +264,46 @@ int evlist__add_dummy(struct evlist *evlist) return 0; } +static void evlist__add_system_wide(struct evlist *evlist, struct evsel *evsel) +{ + evsel->core.system_wide = true; + + /* All CPUs */ + perf_cpu_map__put(evsel->core.own_cpus); + evsel->core.own_cpus = perf_cpu_map__new(NULL); + perf_cpu_map__put(evsel->core.cpus); + evsel->core.cpus = perf_cpu_map__get(evsel->core.own_cpus); + + /* No threads */ + perf_thread_map__put(evsel->core.threads); + evsel->core.threads = perf_thread_map__new_dummy(); + + evlist__add(evlist, evsel); +} + +struct evsel *evlist__add_aux_dummy(struct evlist *evlist, bool system_wide) +{ + struct evsel *evsel = evlist__dummy_event(evlist); + + if (!evsel) + return NULL; + + evsel->core.attr.exclude_kernel = 1; + evsel->core.attr.exclude_guest = 1; + evsel->core.attr.exclude_hv = 1; + evsel->core.attr.freq = 0; + evsel->core.attr.sample_period = 1; + evsel->no_aux_samples = true; + evsel->name = strdup("dummy:u"); + + if (system_wide) + evlist__add_system_wide(evlist, evsel); + else + evlist__add(evlist, evsel); + + return evsel; +} + static int evlist__add_attrs(struct evlist *evlist, struct perf_event_attr *attrs, size_t nr_attrs) { struct evsel *evsel, *n; diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 4062f5aebfc1..dd1af114e033 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -114,6 +114,11 @@ int arch_evlist__add_default_attrs(struct evlist *evlist); struct evsel *arch_evlist__leader(struct list_head *list); int evlist__add_dummy(struct evlist *evlist); +struct evsel *evlist__add_aux_dummy(struct evlist *evlist, bool system_wide); +static inline struct evsel *evlist__add_system_wide_dummy(struct evlist *evlist) +{ + return evlist__add_aux_dummy(evlist, true); +} int evlist__add_sb_event(struct evlist *evlist, struct perf_event_attr *attr, evsel__sb_cb_t cb, void *data); -- 2.25.1