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 DEE89C433F5 for ; Fri, 6 May 2022 12:27:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1391840AbiEFMat (ORCPT ); Fri, 6 May 2022 08:30:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57508 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1391799AbiEFMaQ (ORCPT ); Fri, 6 May 2022 08:30:16 -0400 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 765B3692BB for ; Fri, 6 May 2022 05:26:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1651839990; x=1683375990; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=gYr5snmPtfhF4HsMYYaDlxTc7+PEl0c3nybj109QTzQ=; b=J+rzv+6DC0+8/WwyDo8Is9LXSA6eiMemXmJCjhPgsr8GCOYU9BkDa0FU rzwSVtmj+eNEe7wPIxgAxOIAIcwOm4KGimDyh41+ENvHSEdHPEt3J/2Vj whaHiTvyyOJ8qTa4t+hzo+ih2r9/7W7TB9fIuM9PXL0jPepwQsi3Xav2J tn+nQg3gvz8R3ik+MsfXnXKJeRDa8yY4Z1e3rEqTWFVTY+mLHiNpq/dI7 VnAKwZsG3Vpc7MhQGWwhIqOLblm/2VMoH2HnmAcwj5O2oGXK9lxbWIQRY AD6fzgJ/T9zn1ythATmDTKdyLZOEsBL/PrPueaELKNCh6v58cWSNZfBFX Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10338"; a="266045785" X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="266045785" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2022 05:26:30 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="709440836" Received: from ahunter-desktop.fi.intel.com ([10.237.72.92]) by fmsmga001.fm.intel.com with ESMTP; 06 May 2022 05:26:28 -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 V2 10/23] perf auxtrace: Add mmap_needed to auxtrace_mmap_params Date: Fri, 6 May 2022 15:25:48 +0300 Message-Id: <20220506122601.367589-11-adrian.hunter@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220506122601.367589-1-adrian.hunter@intel.com> References: <20220506122601.367589-1-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 mmap_needed to auxtrace_mmap_params. Currently an auxtrace mmap is always attempted even if the event is not an auxtrace event. That works because, when AUX area tracing, there is always an auxtrace event first for every mmap. Prepare for that not being the case, which it won't be when sideband tracking events are allowed on all CPUs even when auxtrace is limited to selected CPUs. Signed-off-by: Adrian Hunter --- tools/perf/util/auxtrace.c | 10 ++++++++-- tools/perf/util/auxtrace.h | 8 ++++++-- tools/perf/util/evlist.c | 5 +++-- tools/perf/util/mmap.c | 1 + 4 files changed, 18 insertions(+), 6 deletions(-) diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index b11549ae39df..b446cfa66469 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -125,7 +125,7 @@ int auxtrace_mmap__mmap(struct auxtrace_mmap *mm, mm->tid = mp->tid; mm->cpu = mp->cpu.cpu; - if (!mp->len) { + if (!mp->len || !mp->mmap_needed) { mm->base = NULL; return 0; } @@ -168,9 +168,15 @@ void auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp, } void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp, - struct evlist *evlist, int idx, + struct evlist *evlist, + struct evsel *evsel, int idx, bool per_cpu) { + mp->mmap_needed = evsel->needs_auxtrace_mmap; + + if (!mp->mmap_needed) + return; + mp->idx = idx; if (per_cpu) { diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h index dc38b6f57232..37feae003904 100644 --- a/tools/perf/util/auxtrace.h +++ b/tools/perf/util/auxtrace.h @@ -344,6 +344,7 @@ struct auxtrace_mmap { * @idx: index of this mmap * @tid: tid for a per-thread mmap (also set if there is only 1 tid on a per-cpu * mmap) otherwise %0 + * @mmap_needed: set to %false for non-auxtrace events * @cpu: cpu number for a per-cpu mmap otherwise %-1 */ struct auxtrace_mmap_params { @@ -353,6 +354,7 @@ struct auxtrace_mmap_params { int prot; int idx; pid_t tid; + bool mmap_needed; struct perf_cpu cpu; }; @@ -490,7 +492,8 @@ void auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp, unsigned int auxtrace_pages, bool auxtrace_overwrite); void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp, - struct evlist *evlist, int idx, + struct evlist *evlist, + struct evsel *evsel, int idx, bool per_cpu); typedef int (*process_auxtrace_t)(struct perf_tool *tool, @@ -863,7 +866,8 @@ void auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp, unsigned int auxtrace_pages, bool auxtrace_overwrite); void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp, - struct evlist *evlist, int idx, + struct evlist *evlist, + struct evsel *evsel, int idx, bool per_cpu); #define ITRACE_HELP "" diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 7ae56b062f44..996bdc203616 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -747,15 +747,16 @@ static struct mmap *evlist__alloc_mmap(struct evlist *evlist, static void perf_evlist__mmap_cb_idx(struct perf_evlist *_evlist, - struct perf_evsel *_evsel __maybe_unused, + struct perf_evsel *_evsel, struct perf_mmap_param *_mp, int idx) { struct evlist *evlist = container_of(_evlist, struct evlist, core); struct mmap_params *mp = container_of(_mp, struct mmap_params, core); bool per_cpu = !perf_cpu_map__empty(_evlist->user_requested_cpus); + struct evsel *evsel = container_of(_evsel, struct evsel, core); - auxtrace_mmap_params__set_idx(&mp->auxtrace_mp, evlist, idx, per_cpu); + auxtrace_mmap_params__set_idx(&mp->auxtrace_mp, evlist, evsel, idx, per_cpu); } static struct perf_mmap* diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c index 50502b4a7ca4..de59c4da852b 100644 --- a/tools/perf/util/mmap.c +++ b/tools/perf/util/mmap.c @@ -62,6 +62,7 @@ void __weak auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp __maybe_u void __weak auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp __maybe_unused, struct evlist *evlist __maybe_unused, + struct evsel *evsel __maybe_unused, int idx __maybe_unused, bool per_cpu __maybe_unused) { -- 2.25.1