From patchwork Sun Nov 27 14:17:39 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qais Yousef X-Patchwork-Id: 629403 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 8F07BC4332F for ; Sun, 27 Nov 2022 14:18:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229538AbiK0OSD (ORCPT ); Sun, 27 Nov 2022 09:18:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229510AbiK0OSB (ORCPT ); Sun, 27 Nov 2022 09:18:01 -0500 Received: from mail-wr1-x430.google.com (mail-wr1-x430.google.com [IPv6:2a00:1450:4864:20::430]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D5DE8D2CE for ; Sun, 27 Nov 2022 06:18:00 -0800 (PST) Received: by mail-wr1-x430.google.com with SMTP id b12so13112144wrn.2 for ; Sun, 27 Nov 2022 06:18:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=layalina-io.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=mpiTMs/bm1wIhU66d2WA2juvNisiarCxmVPwVf/noJc=; b=CS03/7Oq3hp6rz4NPYWfXdlenemW21COELMeRig3aC2SYx3NQvXnJwgPiXa7VhXdAc x7AQSSpSpYKrO5mGTEVWZ3zIjl3oMYA7EbIHYDlUA7UkSMQg+QL/e+U+afbTd10fd5wa rlY2Wj4wDmrZzxh9gPAqGv1DzPWGF6UoF6bJhvPLCGvSkOlkPh0zBW5kp9ZomYj2R5Yw MLLz6Q0+C40gnrmzmgoLYiDA+/+VRP7c7bCHwyRMuCyzu5iwYhFdvqZvbael6nAJ0zp6 H67jjZaJCEFlaDFPPbjzr+kDA0Ox0JshhQp8hIetJpxgvLwf7ENuL+GaUXReapKD83QJ jIAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=mpiTMs/bm1wIhU66d2WA2juvNisiarCxmVPwVf/noJc=; b=dTo8+E1cc9T2rdEz8uGqvr+V94QSiKrYwGIxGPsDCB1y6xDzleQJ4nji49rqJ/uW7J nJSiXoWnEJB9ayrxVSy5GsLMJjQL6MOOjByYU9Wc3hJu2Zl1CFYYZKXBWMANgQl1/omr w/tNbuID9LG/2oM61ft7ux3d3W2Gj4YrD1uDs69mZtILqO8egm4ibs7BH/xeqeG8nUS5 jf2KmPOnOPC4K1wZba8c9dLJipKLlvtCVrrGGGB8DZYQFabBFUPuScFAYqMJ7pJo6MhJ tXldvN7RvsgC0mSX/vUZdGZ2sxbp89+9EEJt24q0BzJd4lrCj8iLxjMp6mO4eJGtwfar dsTg== X-Gm-Message-State: ANoB5pmp9rPPduYXFDrKAmQ2lWVPu+1RjtPBmmuW9Fa1oFntYL3I5Mr+ x3PWzYATPxGPE6k/7c93sPgVsg== X-Google-Smtp-Source: AA0mqf5iD8x++P3wzr1U6y34gjqkmOnkFDw8fodqu5GlTcetKXVpYtsD+Gn25KFCiMBT6Ke4UxqK4A== X-Received: by 2002:adf:d207:0:b0:242:880:20cc with SMTP id j7-20020adfd207000000b00242088020ccmr6337851wrh.467.1669558679398; Sun, 27 Nov 2022 06:17:59 -0800 (PST) Received: from localhost.localdomain (host86-130-134-87.range86-130.btcentralplus.com. [86.130.134.87]) by smtp.gmail.com with ESMTPSA id l1-20020a05600c4f0100b003c6f3f6675bsm17109757wmq.26.2022.11.27.06.17.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 27 Nov 2022 06:17:58 -0800 (PST) From: Qais Yousef To: Ingo Molnar , Peter Zijlstra , Vincent Guittot , Dietmar Eggemann , "Rafael J. Wysocki" , Viresh Kumar Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Lukasz Luba , Wei Wang , Xuewen Yan , Hank , Jonathan JMChen , "Qais Yousef (Google)" Subject: [PATCH 0/3] Fixes for uclamp and capacity inversion detection Date: Sun, 27 Nov 2022 14:17:39 +0000 Message-Id: <20221127141742.1644023-1-qyousef@layalina.io> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: "Qais Yousef (Google)" Patch 1 addresses a smatch warning reported by Dan Carpenter. Patch 2 fixes a couple of issues reported by Dietmar in capacity inversion logic. Patch 3 is an RFC patch to decouple capacity inversion detection from performance domains which is dependent on sched_energy_enabled(). I switched to traversing cpufreq policies instead. Rafael, Viresh please check I didn't do something stupid here. Thanks! --- Qais Yousef Qais Yousef (3): sched/uclamp: Fix a uninitialized variable warnings sched/fair: Fixes for capacity inversion detection sched/fair: Traverse cpufreq policies to detect capacity inversion drivers/cpufreq/cpufreq.c | 12 +----------- include/linux/cpufreq.h | 26 ++++++++++++++++++++++++++ kernel/sched/fair.c | 18 +++++++++--------- 3 files changed, 36 insertions(+), 20 deletions(-)