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 X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 91AE5C433E6 for ; Sun, 12 Jul 2020 16:59:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 747502068F for ; Sun, 12 Jul 2020 16:59:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729204AbgGLQ7d (ORCPT ); Sun, 12 Jul 2020 12:59:33 -0400 Received: from foss.arm.com ([217.140.110.172]:47884 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728859AbgGLQ7c (ORCPT ); Sun, 12 Jul 2020 12:59:32 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9299D30E; Sun, 12 Jul 2020 09:59:31 -0700 (PDT) Received: from e113632-lin.cambridge.arm.com (e113632-lin.cambridge.arm.com [10.1.194.46]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id B043E3F7D8; Sun, 12 Jul 2020 09:59:29 -0700 (PDT) From: Valentin Schneider To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org Cc: Russell King , Thara Gopinath , Sudeep Holla , Amit Daniel Kachhap , Daniel Lezcano , Viresh Kumar , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann Subject: [PATCH v2 0/3] sched, arch_topology: Thermal pressure configuration cleanup Date: Sun, 12 Jul 2020 17:59:14 +0100 Message-Id: <20200712165917.9168-1-valentin.schneider@arm.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi folks, This stems from this thread [1] on the list. TL;DR: the thermal pressure config has no helpful documentation, and figuring out if the right dependencies are in place is not easy for a regular user. The current landscape also paints an odd picture: arch_set_thermal_pressure() is hardcoded in sched/core.c, and is *not* architecture-definable, while arch_get_thermal_pressure() is. Patch 1 is tackling this, the rest is Kconfig stuff. Cheers, Valentin [1]: https://lkml.kernel.org/r/20200603173150.GB1551@shell.armlinux.org.uk Revisions ========= v1 -> v2 -------- o Remove cpufreq_cooling.c weak function; use #define stub in sched/topology.h (Vincent) o Hinge arm SCHED_THERMAL_PRESSURE selection on ARM_CPU_TOPOLOGY Valentin Schneider (3): arch_topology, sched/core: Cleanup thermal pressure definition sched: Cleanup SCHED_THERMAL_PRESSURE kconfig entry arm, arm64: Select CONFIG_SCHED_THERMAL_PRESSURE arch/arm/Kconfig | 1 + arch/arm/include/asm/topology.h | 3 ++- arch/arm64/Kconfig | 1 + arch/arm64/include/asm/topology.h | 3 ++- drivers/base/arch_topology.c | 11 +++++++++++ include/linux/arch_topology.h | 4 ++-- include/linux/sched/topology.h | 7 +++++++ init/Kconfig | 15 ++++++++++++++- kernel/sched/core.c | 11 ----------- 9 files changed, 40 insertions(+), 16 deletions(-) -- 2.27.0 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 X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A42A1C433DF for ; Sun, 12 Jul 2020 17:01:05 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7446B2068F for ; Sun, 12 Jul 2020 17:01:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ayHc62R4" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7446B2068F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=tsVty6FO7rRYaZznTvBFNloDE4gnLUKOwLYtINFcEE4=; b=ayHc62R4JijoVDnKNDEqvNU7UA yAi+b5rQuMUO03jYwPsWp8f2B5dYyXZiA/EwwqSSEGbX4wX+rWTAvvEx2evO+BU+P6UIYmMzWkJML q6bByyJfhbhV9e+ZgTBuLczhalrbw6Jw/kIxxyypKB1aEoJRfLAjSApQTKUYNK7/HbU+UXD6HHmXe eOsobHg1WmvBK7VlbUGnF5Vt7meqm6MWgg8z2Q3etlVBmQAxRofk3arJHXozB8pKK+2qQJxuyOyYe dVT2LM2W7ko/vvECQ7tl2d93/fwJjvNYpBM0ZpkALRfMJrSvW230+kb7MT9xIH9bk/1Daz30oeZxR ImbgLcqQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jufKF-0003pY-Dn; Sun, 12 Jul 2020 16:59:39 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jufKA-0003nk-SQ for linux-arm-kernel@lists.infradead.org; Sun, 12 Jul 2020 16:59:35 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9299D30E; Sun, 12 Jul 2020 09:59:31 -0700 (PDT) Received: from e113632-lin.cambridge.arm.com (e113632-lin.cambridge.arm.com [10.1.194.46]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id B043E3F7D8; Sun, 12 Jul 2020 09:59:29 -0700 (PDT) From: Valentin Schneider To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org Subject: [PATCH v2 0/3] sched, arch_topology: Thermal pressure configuration cleanup Date: Sun, 12 Jul 2020 17:59:14 +0100 Message-Id: <20200712165917.9168-1-valentin.schneider@arm.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200712_125934_986208_BC5A73AF X-CRM114-Status: UNSURE ( 8.72 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Juri Lelli , Vincent Guittot , Peter Zijlstra , Viresh Kumar , Amit Daniel Kachhap , Daniel Lezcano , Russell King , Thara Gopinath , Dietmar Eggemann , Sudeep Holla , Ingo Molnar Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi folks, This stems from this thread [1] on the list. TL;DR: the thermal pressure config has no helpful documentation, and figuring out if the right dependencies are in place is not easy for a regular user. The current landscape also paints an odd picture: arch_set_thermal_pressure() is hardcoded in sched/core.c, and is *not* architecture-definable, while arch_get_thermal_pressure() is. Patch 1 is tackling this, the rest is Kconfig stuff. Cheers, Valentin [1]: https://lkml.kernel.org/r/20200603173150.GB1551@shell.armlinux.org.uk Revisions ========= v1 -> v2 -------- o Remove cpufreq_cooling.c weak function; use #define stub in sched/topology.h (Vincent) o Hinge arm SCHED_THERMAL_PRESSURE selection on ARM_CPU_TOPOLOGY Valentin Schneider (3): arch_topology, sched/core: Cleanup thermal pressure definition sched: Cleanup SCHED_THERMAL_PRESSURE kconfig entry arm, arm64: Select CONFIG_SCHED_THERMAL_PRESSURE arch/arm/Kconfig | 1 + arch/arm/include/asm/topology.h | 3 ++- arch/arm64/Kconfig | 1 + arch/arm64/include/asm/topology.h | 3 ++- drivers/base/arch_topology.c | 11 +++++++++++ include/linux/arch_topology.h | 4 ++-- include/linux/sched/topology.h | 7 +++++++ init/Kconfig | 15 ++++++++++++++- kernel/sched/core.c | 11 ----------- 9 files changed, 40 insertions(+), 16 deletions(-) -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel