From patchwork Wed Aug 11 11:58:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Viresh Kumar X-Patchwork-Id: 12431015 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 6D77EC4320A for ; Wed, 11 Aug 2021 12:06:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 50AFB60EB9 for ; Wed, 11 Aug 2021 12:06:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237498AbhHKMGj (ORCPT ); Wed, 11 Aug 2021 08:06:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50794 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237443AbhHKMGi (ORCPT ); Wed, 11 Aug 2021 08:06:38 -0400 Received: from mail-pj1-x1034.google.com (mail-pj1-x1034.google.com [IPv6:2607:f8b0:4864:20::1034]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E189C061765 for ; Wed, 11 Aug 2021 05:06:14 -0700 (PDT) Received: by mail-pj1-x1034.google.com with SMTP id m24-20020a17090a7f98b0290178b1a81700so4406220pjl.4 for ; Wed, 11 Aug 2021 05:06:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=FKg83oB/EOubumHMLyW/+CxlonCs6Sr8DZwUqs7o61s=; b=hVsCtquq6U45kkQsI7Vj3hNlKPy4eJSsAmLAbQEn+7pXV2fOQSrxopruKn3Ijor4hJ G3XsS5s9jVLqw0cMSMl5wK6FVWYmItaavWYetcFnlX4D5xn3TCcyZaVSIVPzMQQJ6I5R dx1WDeV5O6HZSPu941m4uq2vC2UQNKfSo7DfOH5e2VWf4Gw+gb0cgXH7QF8UrNJHR05Q ASd86ZctPo0kjcQxyD0AcAr7jotdkEb09HtawOdq2Yg9MgJ7Q7EkgYv6WJZ8hN8c7JGa czQYiGXR9gLjmD+F/9aozWcLXiB4+NT46gLj7Ed2ICK9sOgrgVSsXmWHZmxmz0ZpZed1 iI9A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=FKg83oB/EOubumHMLyW/+CxlonCs6Sr8DZwUqs7o61s=; b=ZKTKtJ8PvvnOcRATZqD2UvIIhIk5OXkchfH4qReyVA1JSTw1+I+tZ39EE9NpFlGda4 aNkmug6EDt6eAh0OE5Dh/+v37b+e3oLonC6hTWGaWovOaUx1s9vsL1sf3ugVHSyiazcg uWbAtohyRy+wkbdB6suyU1KVbbtHrF4jPcqmG/7evVjKUNuB0sSY/QCXVaE8949hFwJE mQYGoD1VvUq3sxpYV6Jg88irMu++6qwbiEsp4I2Bw7aPYfhCP42LD0XF26LBq3vWXnnw Izedj637Gi4DZ2xrIUoCtaxlKRn0SPx/f3LYuhUhpA91KulNfTX3BTRhqz6Rs7xgijAz xujQ== X-Gm-Message-State: AOAM533hOQi2S/cA7sMTKjJa173qDR2WaSlolDJVL/7DMoAQMv6i66eT sySE9HPzSb5RKpl4j79uA4pxdA== X-Google-Smtp-Source: ABdhPJztfFMMqUn9AEZt5iJ8AdfS9ivDU1oMjYwxS6YRWF0FK+JSOzQ526ggirfhbR8GWllwV35JIQ== X-Received: by 2002:a17:90a:404a:: with SMTP id k10mr37162653pjg.145.1628683574049; Wed, 11 Aug 2021 05:06:14 -0700 (PDT) Received: from localhost ([122.172.201.85]) by smtp.gmail.com with ESMTPSA id v20sm2695779pgi.39.2021.08.11.05.06.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Aug 2021 05:06:13 -0700 (PDT) From: Viresh Kumar To: Rafael Wysocki , Andy Gross , Bjorn Andersson , Cristian Marussi , Fabio Estevam , Kevin Hilman , Matthias Brugger , NXP Linux Team , Pengutronix Kernel Team , Sascha Hauer , Shawn Guo , Sudeep Holla , Viresh Kumar Cc: linux-pm@vger.kernel.org, Vincent Guittot , Lukasz Luba , Quentin Perret , linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-omap@vger.kernel.org Subject: [PATCH V2 0/9] cpufreq: Auto-register with energy model Date: Wed, 11 Aug 2021 17:28:38 +0530 Message-Id: X-Mailer: git-send-email 2.31.1.272.g89b43f80a514 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Many cpufreq drivers register with the energy model for each policy and do exactly the same thing. Follow the footsteps of thermal-cooling, to get it done from the cpufreq core itself. Provide a new callback, which will be called, if present, by the cpufreq core at the right moment (more on that in the code's comment). Also provide a generic implementation that uses dev_pm_opp_of_register_em(). This also allows us to register with the EM at a later point of time, compared to ->init(), from where the EM core can access cpufreq policy directly using cpufreq_cpu_get() type of helpers and perform other work, like marking few frequencies inefficient, this will be done separately. This is build/boot tested by the bot for a couple of boards. https://gitlab.com/vireshk/pmko/-/pipelines/351525873 Note that I haven't picked any of the Reviewed-by tags from the first version since the idea is very much changed here. V1->V2: - Add a callback instead of flag. - Register before governor is initialized. - Update scmi driver as well. - Don't unregister from the EM core. --- Viresh Viresh Kumar (9): cpufreq: Auto-register with energy model if asked cpufreq: dt: Use auto-registration for energy model cpufreq: imx6q: Use auto-registration for energy model cpufreq: mediatek: Use auto-registration for energy model cpufreq: omap: Use auto-registration for energy model cpufreq: qcom-cpufreq-hw: Use auto-registration for energy model cpufreq: scpi: Use auto-registration for energy model cpufreq: vexpress: Use auto-registration for energy model cpufreq: scmi: Use .register_em() callback drivers/cpufreq/cpufreq-dt.c | 3 +- drivers/cpufreq/cpufreq.c | 12 ++++++ drivers/cpufreq/imx6q-cpufreq.c | 2 +- drivers/cpufreq/mediatek-cpufreq.c | 3 +- drivers/cpufreq/omap-cpufreq.c | 2 +- drivers/cpufreq/qcom-cpufreq-hw.c | 3 +- drivers/cpufreq/scmi-cpufreq.c | 55 +++++++++++++++----------- drivers/cpufreq/scpi-cpufreq.c | 3 +- drivers/cpufreq/vexpress-spc-cpufreq.c | 3 +- include/linux/cpufreq.h | 14 +++++++ 10 files changed, 65 insertions(+), 35 deletions(-)