From mboxrd@z Thu Jan 1 00:00:00 1970 From: Quentin Perret Subject: [PATCH v2 1/3] arm64: defconfig: Enable CONFIG_ENERGY_MODEL Date: Wed, 17 Apr 2019 10:42:59 +0100 Message-ID: <20190417094301.17622-2-quentin.perret@arm.com> References: <20190417094301.17622-1-quentin.perret@arm.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190417094301.17622-1-quentin.perret@arm.com> Sender: linux-kernel-owner@vger.kernel.org To: edubezval@gmail.com, rui.zhang@intel.com, javi.merino@kernel.org, viresh.kumar@linaro.org, amit.kachhap@gmail.com, rjw@rjwysocki.net, will.deacon@arm.com, catalin.marinas@arm.com Cc: daniel.lezcano@linaro.org, dietmar.eggemann@arm.com, ionela.voinescu@arm.com, quentin.perret@arm.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, mka@chromium.org List-Id: linux-pm@vger.kernel.org The recently introduced Energy Model (EM) framework manages power cost tables for the CPUs of the system. Its only user right now is the scheduler, in the context of Energy Aware Scheduling (EAS). However, the EM framework also offers a generic infrastructure that could replace subsystem-specific implementations of the same concepts, as this is the case in the thermal framework. So, in order to prepare the migration of the thermal subsystem to use the EM framework, enable it in the default arm64 defconfig, which is the most commonly used architecture for IPA. This will also compile-in all of the EAS code, although it won't be enabled by default -- EAS requires to use the 'schedutil' CPUFreq governor while arm64 defaults to 'performance'. Signed-off-by: Quentin Perret --- arch/arm64/configs/defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 2d9c39033c1a..4881a752ab3f 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -97,6 +97,7 @@ CONFIG_XEN=y CONFIG_COMPAT=y CONFIG_HIBERNATION=y CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y +CONFIG_ENERGY_MODEL=y CONFIG_ARM_CPUIDLE=y CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_STAT=y -- 2.21.0 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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 D8A95C282DC for ; Wed, 17 Apr 2019 09:43:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A641F206B6 for ; Wed, 17 Apr 2019 09:43:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731584AbfDQJnR (ORCPT ); Wed, 17 Apr 2019 05:43:17 -0400 Received: from foss.arm.com ([217.140.101.70]:41732 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727013AbfDQJnP (ORCPT ); Wed, 17 Apr 2019 05:43:15 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0BB6215A2; Wed, 17 Apr 2019 02:43:15 -0700 (PDT) Received: from queper01-lin.cambridge.arm.com (queper01-lin.cambridge.arm.com [10.1.195.48]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 5D0873F68F; Wed, 17 Apr 2019 02:43:12 -0700 (PDT) From: Quentin Perret To: edubezval@gmail.com, rui.zhang@intel.com, javi.merino@kernel.org, viresh.kumar@linaro.org, amit.kachhap@gmail.com, rjw@rjwysocki.net, will.deacon@arm.com, catalin.marinas@arm.com Cc: daniel.lezcano@linaro.org, dietmar.eggemann@arm.com, ionela.voinescu@arm.com, quentin.perret@arm.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, mka@chromium.org Subject: [PATCH v2 1/3] arm64: defconfig: Enable CONFIG_ENERGY_MODEL Date: Wed, 17 Apr 2019 10:42:59 +0100 Message-Id: <20190417094301.17622-2-quentin.perret@arm.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190417094301.17622-1-quentin.perret@arm.com> References: <20190417094301.17622-1-quentin.perret@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Message-ID: <20190417094259.xKw0zb_x8Xfw4qbSjuEiEhdzXYN0KadhbhiiwGsPhcw@z> The recently introduced Energy Model (EM) framework manages power cost tables for the CPUs of the system. Its only user right now is the scheduler, in the context of Energy Aware Scheduling (EAS). However, the EM framework also offers a generic infrastructure that could replace subsystem-specific implementations of the same concepts, as this is the case in the thermal framework. So, in order to prepare the migration of the thermal subsystem to use the EM framework, enable it in the default arm64 defconfig, which is the most commonly used architecture for IPA. This will also compile-in all of the EAS code, although it won't be enabled by default -- EAS requires to use the 'schedutil' CPUFreq governor while arm64 defaults to 'performance'. Signed-off-by: Quentin Perret --- arch/arm64/configs/defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 2d9c39033c1a..4881a752ab3f 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -97,6 +97,7 @@ CONFIG_XEN=y CONFIG_COMPAT=y CONFIG_HIBERNATION=y CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y +CONFIG_ENERGY_MODEL=y CONFIG_ARM_CPUIDLE=y CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_STAT=y -- 2.21.0