From patchwork Thu Jul 22 22:21:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rob Clark X-Patchwork-Id: 12394907 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=-10.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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=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 79D02C4320A for ; Thu, 22 Jul 2021 22:17:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 62DD960EB0 for ; Thu, 22 Jul 2021 22:17:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232332AbhGVVhF (ORCPT ); Thu, 22 Jul 2021 17:37:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41122 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232360AbhGVVhE (ORCPT ); Thu, 22 Jul 2021 17:37:04 -0400 Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com [IPv6:2607:f8b0:4864:20::1029]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D8D16C061760; Thu, 22 Jul 2021 15:17:38 -0700 (PDT) Received: by mail-pj1-x1029.google.com with SMTP id hg12-20020a17090b300cb02901736d9d2218so1261931pjb.1; Thu, 22 Jul 2021 15:17:38 -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=QvrPiMGPkus2KPbqCZxElaAN5sMU0e9JDFN9IoIh6wktIraxin82xV0hImaB0s/K+2 tE37zzdqUXJSSc4lk7qLzS5PFfDYqTfOn0X9NS4vwc2dzz/eUFKO0V1aO89YVztsm3mJ DQewTPhyZSOYCDWa6k7cCTGnbSxDMbFrLsamEQ5zHFpgCL9e4I8aBmD00UDaP5yQ3fja KHKhb20Zcg0ljvxF2QEM5hUu6qKT48CTgTEabWS6Efpd/g+lKVqh7gHY0KIC6mq/uTl6 rO+O191e0+0oAIHw9LNj7PL+dm9OXUVyy2YqLICvL0BsAK1R2GVIpJ+bcfku3TaVhJRg APHA== X-Gm-Message-State: AOAM532ac3/ZrnbFdTCeKzv4Fn0WgGiu6mJJEMk06M6DFsutUt6ALtW9 nPb+ZweG8219Kc1nrdu8/hc= 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 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 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