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[73.25.156.94]) by smtp.gmail.com with ESMTPSA id x10sm34105015pgj.73.2021.07.22.15.17.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jul 2021 15:17:36 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org Cc: Rob Clark , Akhil P Oommen , Douglas Anderson , freedreno@lists.freedesktop.org (open list:DRM DRIVER FOR MSM ADRENO GPU), Jonathan Marek , Jordan Crouse , linux-arm-msm@vger.kernel.org (open list:DRM DRIVER FOR MSM ADRENO GPU), linux-kernel@vger.kernel.org (open list), Sai Prakash Ranjan , Sharat Masetty Subject: [PATCH 0/3] drm/msm: Improved devfreq tuning Date: Thu, 22 Jul 2021 15:21:38 -0700 Message-Id: <20210722222145.1759900-1-robdclark@gmail.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Rob Clark This is the outcome of trying to fix some bad gpu freq behavior seen in some use-cases, in particular mobile games that throttle themselves to 30fps. With the existing tuning, we'd end up spending most of the time that we should be running fast at a low freq, and most of the idle time at a high freq. First two patches are prep, 3/3 is the interesting bit. See the patch description in 3/3 for more details. Rob Clark (3): drm/msm: Split out devfreq handling drm/msm: Split out get_freq() helper drm/msm: Devfreq tuning drivers/gpu/drm/msm/Makefile | 1 + drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 4 +- drivers/gpu/drm/msm/msm_gpu.c | 124 ++-------------- drivers/gpu/drm/msm/msm_gpu.h | 27 +++- drivers/gpu/drm/msm/msm_gpu_devfreq.c | 203 ++++++++++++++++++++++++++ 5 files changed, 238 insertions(+), 121 deletions(-) create mode 100644 drivers/gpu/drm/msm/msm_gpu_devfreq.c -- 2.31.1 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=-8.5 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,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 4BD83C4338F for ; Thu, 22 Jul 2021 22:17:41 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 1885A60EB0 for ; Thu, 22 Jul 2021 22:17:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 1885A60EB0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6F9F86EA81; Thu, 22 Jul 2021 22:17:40 +0000 (UTC) Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by gabe.freedesktop.org (Postfix) with ESMTPS id 55CDD6EA81; Thu, 22 Jul 2021 22:17:39 +0000 (UTC) Received: by mail-pj1-x102c.google.com with SMTP id m2-20020a17090a71c2b0290175cf22899cso1242500pjs.2; Thu, 22 Jul 2021 15:17:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=EMkDgOrvQyP1SLItHDLnfmWsC7sgMNSITNSdc/ws6zA=; b=d/QmizXKgwPlJFSmjjZrZ/EgTWN90QjKd3XvOAoGwkYwx8JLJmaULlhMenIUrIs9LU ehoxkuSV20H/pO0m1w8PRbYqzVVyNkRmE0wBRd9WiuOm0yu66uPzbUu4wYbsNBMwef04 UNJ9ul7B67GnRxs5B1hv4ayctM2agheWYSl0k/NFx/aPRn8ZYf3jkp8CshMpK3GtZUN9 HIuNhYXkr9mKDjLNmf3ndcpc6p4J1oFRjbaPIAsEp3A7Kgf97FEsBrZLRBT8Hhed+Kba K1gLPl+onz1fwf+XCjL+po+xsWhMRFOgiT2o7Upub+Pr6EsDeQLAS66c1s5YDjgAr97t UMsA== 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=EMkDgOrvQyP1SLItHDLnfmWsC7sgMNSITNSdc/ws6zA=; b=hPgf9/mpY2um+633Ilw+7MnSchLCkdg431TFiJpRBdxOwXm0ILhZO36qcOMI0/vhLA +1t9/AJkAI5U2OMZOXEnfh6+Ae5u3TZ5ILvRochwDLqaG9knWwBBYriQedT6kEfPjflv vxWKW/mPpJClE02U9NBC7Cm6UTgi+9F6e30mvh/wAvQsznGMiRoNVAJUs5I+pDyKQ4KB xynDpyFf5XsxRtJN4gzLFg3f7kZi9VRggBxMgpPomiF/itOan/9CfSTlDFM/3KR3ODkD MvZbskd2vh9KKMBO8+55GKBKri7zN4QABdktWfxp/qIihx9Hn9++CxFVyVniqNT43s7j oHgg== X-Gm-Message-State: AOAM532ZLao1cKzdqjER9AEp/uGF7/nFEIk6xGSwJbijGD79F5GGgvAv 1H/8zlsQJM5PKOikoufoTZbOWd2UIxrmaA== X-Google-Smtp-Source: ABdhPJzScGN6hhj5xPi+zBl19RrPH3Q+8v9QGVI6j6NSNBBqFSAkVc5t6gwgG5Ph6MH6vg4f7iYzXQ== X-Received: by 2002:a17:903:2082:b029:12b:a0e9:5c88 with SMTP id d2-20020a1709032082b029012ba0e95c88mr1731398plc.27.1626992258242; Thu, 22 Jul 2021 15:17:38 -0700 (PDT) Received: from localhost (c-73-25-156-94.hsd1.or.comcast.net. [73.25.156.94]) by smtp.gmail.com with ESMTPSA id x10sm34105015pgj.73.2021.07.22.15.17.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jul 2021 15:17:36 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org Subject: [PATCH 0/3] drm/msm: Improved devfreq tuning Date: Thu, 22 Jul 2021 15:21:38 -0700 Message-Id: <20210722222145.1759900-1-robdclark@gmail.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rob Clark , Sai Prakash Ranjan , Douglas Anderson , Jonathan Marek , "open list:DRM DRIVER FOR MSM ADRENO GPU" , Sharat Masetty , Akhil P Oommen , Jordan Crouse , "open list:DRM DRIVER FOR MSM ADRENO GPU" , open list Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Rob Clark This is the outcome of trying to fix some bad gpu freq behavior seen in some use-cases, in particular mobile games that throttle themselves to 30fps. With the existing tuning, we'd end up spending most of the time that we should be running fast at a low freq, and most of the idle time at a high freq. First two patches are prep, 3/3 is the interesting bit. See the patch description in 3/3 for more details. Rob Clark (3): drm/msm: Split out devfreq handling drm/msm: Split out get_freq() helper drm/msm: Devfreq tuning drivers/gpu/drm/msm/Makefile | 1 + drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 4 +- drivers/gpu/drm/msm/msm_gpu.c | 124 ++-------------- drivers/gpu/drm/msm/msm_gpu.h | 27 +++- drivers/gpu/drm/msm/msm_gpu_devfreq.c | 203 ++++++++++++++++++++++++++ 5 files changed, 238 insertions(+), 121 deletions(-) create mode 100644 drivers/gpu/drm/msm/msm_gpu_devfreq.c -- 2.31.1