From nobody Mon Feb 9 13:36:35 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 15008C77B7A for ; Wed, 24 May 2023 22:20:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237247AbjEXWUA (ORCPT ); Wed, 24 May 2023 18:20:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46534 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231658AbjEXWT3 (ORCPT ); Wed, 24 May 2023 18:19:29 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1E89610D0 for ; Wed, 24 May 2023 15:19:15 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id 3f1490d57ef6-ba83fed51b0so1861728276.3 for ; Wed, 24 May 2023 15:19:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1684966755; x=1687558755; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=T1T7njr7JkWMvDDZnEk/t/BOuD5WuTu8PcvmdAEMrg8=; b=ySSNKtAZRkZfdrXUqJSOlEp1TXX2LZPRSt+VlUljfAOealn0tl+3yQPXwNviNIUsPS /n/9N1KdMBfE4JUt+jNy5w6m0tkFUcAF80uJX/6QzVwGMK5Sgdxm4VrH0miQn40xd9mm obprTgtKg0ThCaT4frbwOAHpDCGfwdLhpOpN4tjl/hLS5G+HCr/bOU6XDg2q5txLWA8B XlCHbKFm+gvuImcNx2BRCZo46+hcnOG5bzpPFuAVAU7r+79Bji2ZJpvkZo/xBbiasPMm 83NgkjqwhAj6+KsKfrK2E1PIzavbOsWBD3FxzG6wQSbciTUpaHQp1nQW9OlVyOO9udiz GPTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684966755; x=1687558755; 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=T1T7njr7JkWMvDDZnEk/t/BOuD5WuTu8PcvmdAEMrg8=; b=ix8c5rFL0gPlwJEZxBYclbfudMMgCbSb33xE9fIRcEGyMgrsia230HZkoHJN1ZoEwe 1JjZbZ4hGLBOG4YXwHnoXmUB8MX9vHE26/6a35PAwBfrG9A2qEL4n/2qiFCirDOC8hGB JTqkznD9nEx6HEpRJH2J+W0yT/v4aBI/Oo/VfOy5VD8IJiwVwfbHUXoi/ZjBSZxtb+RC xxGtUs06xzGv5cQYf0i8UjbsQ9uX6IHJh1gLUbIBP2dT0kSA78d4E6ZJxK475w/qSUi3 sV5qbzSsH7RwbQUNS4OjoyveHDVdV8BoM1C2NRLkpMuhAdKuCBzX66o1B0/PHOrl0sF3 YW5g== X-Gm-Message-State: AC+VfDwnczpsNs0IT0jNsUilYspczq5lG0Ye6yS47AqmtlVr7vl7eal7 xCPbNZqytXPRfvisfwhHQJEgG1C3YImb X-Google-Smtp-Source: ACHHUZ6qH9PCyRVFSAUQW8f9PmxZgpl8Yzylqljyq6W3cock0VJZmarcGXaRRN+3X5MziK1RwyHWEWWZ62UB X-Received: from irogers.svl.corp.google.com ([2620:15c:2d4:203:7aa7:3d2d:76ae:8e96]) (user=irogers job=sendgmr) by 2002:a25:5442:0:b0:ba8:8ab3:3806 with SMTP id i63-20020a255442000000b00ba88ab33806mr731563ybb.13.1684966754736; Wed, 24 May 2023 15:19:14 -0700 (PDT) Date: Wed, 24 May 2023 15:18:13 -0700 In-Reply-To: <20230524221831.1741381-1-irogers@google.com> Message-Id: <20230524221831.1741381-18-irogers@google.com> Mime-Version: 1.0 References: <20230524221831.1741381-1-irogers@google.com> X-Mailer: git-send-email 2.40.1.698.g37aff9b760-goog Subject: [PATCH v3 17/35] perf pmu: Rewrite perf_pmu__has_hybrid to avoid list 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" Rather than list empty on perf_pmu__hybrid_pmus, detect if any core PMUs match the hybrid name. Computed values held in statics to avoid recomputation. Signed-off-by: Ian Rogers --- tools/perf/util/pmu.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index e9f3e6a777c0..821cdd79db48 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -60,8 +60,6 @@ struct perf_pmu_format { struct list_head list; }; =20 -static bool hybrid_scanned; - static struct perf_pmu *perf_pmu__find2(int dirfd, const char *name); =20 /* @@ -2026,12 +2024,20 @@ void perf_pmu__warn_invalid_config(struct perf_pmu = *pmu, __u64 config, =20 bool perf_pmu__has_hybrid(void) { + static bool hybrid_scanned, has_hybrid; + if (!hybrid_scanned) { + struct perf_pmu *pmu =3D NULL; + + while ((pmu =3D perf_pmu__scan(pmu)) !=3D NULL) { + if (pmu->is_core && is_pmu_hybrid(pmu->name)) { + has_hybrid =3D true; + break; + } + } hybrid_scanned =3D true; - perf_pmu__scan(NULL); } - - return !list_empty(&perf_pmu__hybrid_pmus); + return has_hybrid; } =20 int perf_pmu__match(char *pattern, char *name, char *tok) --=20 2.40.1.698.g37aff9b760-goog