From patchwork Sun Jun 14 01:07:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Valentin Schneider X-Patchwork-Id: 211818 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=-3.8 required=3.0 tests=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 2C0F4C433DF for ; Sun, 14 Jun 2020 01:10:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 093F62074D for ; Sun, 14 Jun 2020 01:10:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726824AbgFNBKW (ORCPT ); Sat, 13 Jun 2020 21:10:22 -0400 Received: from foss.arm.com ([217.140.110.172]:53250 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726803AbgFNBKW (ORCPT ); Sat, 13 Jun 2020 21:10:22 -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 544221FB; Sat, 13 Jun 2020 18:10:21 -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 621943F73C; Sat, 13 Jun 2020 18:10:19 -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 0/3] sched, arch_topology: Thermal pressure configuration cleanup Date: Sun, 14 Jun 2020 02:07:52 +0100 Message-Id: <20200614010755.9129-1-valentin.schneider@arm.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@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 Valentin Schneider (3): thermal/cpu-cooling, sched/core: Cleanup thermal pressure definition sched: Cleanup SCHED_THERMAL_PRESSURE setup arm, arm64: Select CONFIG_SCHED_THERMAL_PRESSURE arch/arm/Kconfig | 1 + arch/arm64/Kconfig | 1 + drivers/base/arch_topology.c | 11 +++++++++++ drivers/thermal/cpufreq_cooling.c | 5 +++++ include/linux/arch_topology.h | 3 --- init/Kconfig | 15 ++++++++++++++- kernel/sched/core.c | 11 ----------- 7 files changed, 32 insertions(+), 15 deletions(-) --- 2.27.0