From nobody Mon Feb 9 21:18:45 2026 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 D2BA2C77B7C for ; Fri, 26 May 2023 21:56:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244304AbjEZV4A (ORCPT ); Fri, 26 May 2023 17:56:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47804 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244198AbjEZVzf (ORCPT ); Fri, 26 May 2023 17:55:35 -0400 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A85BCE58 for ; Fri, 26 May 2023 14:55:04 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id 3f1490d57ef6-ba82ed6e450so2611877276.2 for ; Fri, 26 May 2023 14:55:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1685138097; x=1687730097; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=csOWTo951DO4baytRGvCV+AGtywhGll+tnrLNxjPQY0=; b=j9NAAVXq5iGO4JhTa7MDsqCpgld3dg374djTNEgrNq8tyZyjPTnlp3eazGoLfZr3RK IkEh8Xa9RttPpnUSLFgXiMejZ6BUZ9sKk6d48yN9TF1JzCCP7dz5ClHlU8c9hD1mnKWh DaSelOVeHG9WXCdD09QHcmDrSZs+iZW/DMyZEPx5xrgB6Xxp46jryiTZWUzt7auxYmP3 hTYCfePL36YKY3tU7vCBSGErERVzdvrcWnFVss48XlHn72LdegcAc+zpzq0N7mhbm5pU B/wOu6p5OR7eXgI5UWfesif2QOnxNDkZRsg1N3u/6X6bJomR03NBuhOox9cbMslglvhs u3bA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685138097; x=1687730097; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=csOWTo951DO4baytRGvCV+AGtywhGll+tnrLNxjPQY0=; b=DuWIi+Uae/+Ww/UgG9unl7DAmK0rjIlYWVYvR3QNiH+VhFvQxXdvCe8YO4Ulr+qnSf tiUCHKNKAXvgpcbw0qNV6qw1pEnOMh6t+ZKYm9GKTUYSh35k//scXTDXrCvJO0KY3bJS 6Vw0Wb8yKILscyRoIBXFjWmz8mPr0X/cB1wmY4QCkp8o35Sq+jcpFl251WIRANCnd+Ox MrvxWwW5OOqkFJhU0WRRdvmCqpUl7ou/+mipML+ythuo8+0wDkklVf3/o4NQvoaZ/DcJ q0e/kfLK2y+qp7lDj6G3QDRAv/qfSxQ2Z+i87xt988mnReyvhk7iO63GVSTMRNXALfzP 7Vjw== X-Gm-Message-State: AC+VfDyi15TSRZk4gcRWl83RUrO2draLadRita3vEVgMDJI0PvmHSyQi 0rAnrdS8u1TLNOi1d5mhYHcSOi0g7l0G X-Google-Smtp-Source: ACHHUZ6rK9vXFFe6bA1cOlIdln1XgJFys+yiHDV71eOLRBfjur55rI9Xe7Cku48l9+iEiobNEnOmOe69OKPH X-Received: from irogers.svl.corp.google.com ([2620:15c:2d4:203:3b4e:312c:644:a642]) (user=irogers job=sendgmr) by 2002:a05:6902:1341:b0:ba8:2e79:c193 with SMTP id g1-20020a056902134100b00ba82e79c193mr1253603ybu.12.1685138096930; Fri, 26 May 2023 14:54:56 -0700 (PDT) Date: Fri, 26 May 2023 14:53:54 -0700 In-Reply-To: <20230526215410.2435674-1-irogers@google.com> Message-Id: <20230526215410.2435674-20-irogers@google.com> Mime-Version: 1.0 References: <20230526215410.2435674-1-irogers@google.com> X-Mailer: git-send-email 2.41.0.rc0.172.g3f132b7071-goog Subject: [PATCH v4 19/35] perf topology: Avoid hybrid list for hybrid topology From: Ian Rogers To: Suzuki K Poulose , Mike Leach , Leo Yan , John Garry , Will Deacon , James Clark , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Ian Rogers , Adrian Hunter , Kajol Jain , Jing Zhang , Kan Liang , Zhengjun Xing , Ravi Bangoria , Madhavan Srinivasan , Athira Rajeev , Ming Wang , Huacai Chen , Sandipan Das , Dmitrii Dolgov <9erthalion6@gmail.com>, Sean Christopherson , Ali Saidi , Rob Herring , Thomas Richter , Kang Minchul , linux-kernel@vger.kernel.org, coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Avoid perf_pmu__for_each_hybrid_pmu in hybrid_topology__new by scanning all PMUs and processing the is_core ones. Add early exit for non-hybrid. Signed-off-by: Ian Rogers Reviewed-by: Kan Liang --- tools/perf/util/cputopo.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/tools/perf/util/cputopo.c b/tools/perf/util/cputopo.c index ca1d833a0c26..a5c259bd5cc0 100644 --- a/tools/perf/util/cputopo.c +++ b/tools/perf/util/cputopo.c @@ -12,7 +12,7 @@ #include "cpumap.h" #include "debug.h" #include "env.h" -#include "pmu-hybrid.h" +#include "pmu.h" =20 #define PACKAGE_CPUS_FMT \ "%s/devices/system/cpu/cpu%d/topology/package_cpus_list" @@ -469,11 +469,17 @@ static int load_hybrid_node(struct hybrid_topology_no= de *node, =20 struct hybrid_topology *hybrid_topology__new(void) { - struct perf_pmu *pmu; + struct perf_pmu *pmu =3D NULL; struct hybrid_topology *tp =3D NULL; - u32 nr, i =3D 0; + u32 nr =3D 0, i =3D 0; =20 - nr =3D perf_pmu__hybrid_pmu_num(); + if (!perf_pmu__has_hybrid()) + return NULL; + + while ((pmu =3D perf_pmu__scan(pmu)) !=3D NULL) { + if (pmu->is_core) + nr++; + } if (nr =3D=3D 0) return NULL; =20 @@ -482,7 +488,10 @@ struct hybrid_topology *hybrid_topology__new(void) return NULL; =20 tp->nr =3D nr; - perf_pmu__for_each_hybrid_pmu(pmu) { + while ((pmu =3D perf_pmu__scan(pmu)) !=3D NULL) { + if (!pmu->is_core) + continue; + if (load_hybrid_node(&tp->nodes[i], pmu)) { hybrid_topology__delete(tp); return NULL; --=20 2.41.0.rc0.172.g3f132b7071-goog