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=-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=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 DCF20C4338F for ; Thu, 12 Aug 2021 04:35:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B45BD60F91 for ; Thu, 12 Aug 2021 04:35:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233659AbhHLEgN (ORCPT ); Thu, 12 Aug 2021 00:36:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230373AbhHLEgM (ORCPT ); Thu, 12 Aug 2021 00:36:12 -0400 Received: from mail-pl1-x62b.google.com (mail-pl1-x62b.google.com [IPv6:2607:f8b0:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 064DAC061765 for ; Wed, 11 Aug 2021 21:35:48 -0700 (PDT) Received: by mail-pl1-x62b.google.com with SMTP id b7so5619053plh.7 for ; Wed, 11 Aug 2021 21:35:48 -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=gxr+kN6SetTz50b/VYivr0ZuxkSNxFN7jKWgrcYWkys=; b=S1St+GitlDcWedfmRSFXGJimehgFJFlFJwttWDdN3zwMXbC6pb4l3lsPKEyWRkGHT4 hj9LanR1X1hmDGTxbFNTh/HHOKWVEnuDZfgYbxGVXo3MUos0btzQLY1ssDN9j0N7AHhL Pu44FndYuRVG9rtcQMyDyV4EmtQs4oqkIkFl+XfKvg6+Vao0c8+3kx8PqON9bX+JdMBl aIq7jZYDN4rflT6LH0T9TIARx4Mxgc/yDJfjP//GgTvrgmSqM04S+JVjOmKlX7saeAp5 5ADWwmehJpMTRJ9Re+vvybV419/uXAoHdupfeo6URKjlLwTxfWFuma6Rv1rECl3+e0gB 0TEA== 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=gxr+kN6SetTz50b/VYivr0ZuxkSNxFN7jKWgrcYWkys=; b=Rt+6DRemqlRc9FCnPCu9qhdqJBo3lMniRlnWA4zk4ppWuxfrhlWs13Hz+o0flvVOxW azkefKKsYh+85SRojX73+Atj6ZNAzSdwvPGohdaF72y8xg11BCvoZ7hU4vnfIWDpaYEs kK/bQTBj/oPbpeXxO1yLvTvDeBXfwLv3wlM64lcTmElB3UiO0PZu486DJtEfpfbl6KiL CWz29G0UDdzST9zxc0vtvh4PHEEBcfFeVjlCuPqAkAASXem8+8z+S4B3dHCKkWcKymmU 1L2VGv+fo91hdNQdpqzcWNuCo6TIcRVFAdoWi434FAWs/6Rkz2EUBg5HY+ohL2Gb023l pBfA== X-Gm-Message-State: AOAM533iHbt7y1ML0sBSU5wkyEcSedmja0ezUXofOCGuBoIY8iVGxx7n PoP5hjDL+UV7oGn4UEpyt8c43Q== X-Google-Smtp-Source: ABdhPJydv+lAOJdvjzc80FCXMzAsQnjZgaDpNJlleVqm7BNMfhuu1ZD0GXkUb8D3PJVRnvy/JGxrcQ== X-Received: by 2002:a63:4423:: with SMTP id r35mr2089732pga.358.1628742945985; Wed, 11 Aug 2021 21:35:45 -0700 (PDT) Received: from localhost ([122.172.201.85]) by smtp.gmail.com with ESMTPSA id z13sm8264118pjd.44.2021.08.11.21.35.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Aug 2021 21:35:45 -0700 (PDT) From: Viresh Kumar To: Rafael Wysocki , Vincent Donnefort , lukasz.luba@arm.com, Quentin Perret , 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 , 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 V3 0/9] Add callback to register with energy model Date: Thu, 12 Aug 2021 10:05:13 +0530 Message-Id: X-Mailer: git-send-email 2.31.1.272.g89b43f80a514 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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/351965580 FWIW, I have queued up the series for linux-next to get more testing, but your reviews are welcome. Thanks. V2->V3: - Drop the auto-register part from all logs, this isn't called auto registration anymore. - Call register_em() only for new policies. - Update scmi driver to register with EM only when required. - Add Rby tags. 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: Add callback to register with energy model cpufreq: dt: Use .register_em() to register with energy model cpufreq: imx6q: Use .register_em() to register with energy model cpufreq: mediatek: Use .register_em() to register with energy model cpufreq: omap: Use .register_em() to register with energy model cpufreq: qcom-cpufreq-hw: Use .register_em() to register with energy model cpufreq: scpi: Use .register_em() to register with energy model cpufreq: vexpress: Use .register_em() to register with energy model cpufreq: scmi: Use .register_em() to register with energy model drivers/cpufreq/cpufreq-dt.c | 3 +- drivers/cpufreq/cpufreq.c | 13 ++++++ 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 | 65 +++++++++++++++++--------- drivers/cpufreq/scpi-cpufreq.c | 3 +- drivers/cpufreq/vexpress-spc-cpufreq.c | 3 +- include/linux/cpufreq.h | 14 ++++++ 10 files changed, 76 insertions(+), 35 deletions(-) -- 2.31.1.272.g89b43f80a514