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=-7.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no 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 1D118C433DF for ; Fri, 31 Jul 2020 13:14:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E6ECD206FA for ; Fri, 31 Jul 2020 13:14:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Ic8H8Eqm" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728379AbgGaNOb (ORCPT ); Fri, 31 Jul 2020 09:14:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39178 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726843AbgGaNOa (ORCPT ); Fri, 31 Jul 2020 09:14:30 -0400 Received: from mail-il1-x144.google.com (mail-il1-x144.google.com [IPv6:2607:f8b0:4864:20::144]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 85D33C061574; Fri, 31 Jul 2020 06:14:30 -0700 (PDT) Received: by mail-il1-x144.google.com with SMTP id t18so25308106ilh.2; Fri, 31 Jul 2020 06:14:30 -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=IpiXoaEfhRVC/TiOprnmSx5/CzTTYxkk2Z3fpn71RCE=; b=Ic8H8EqmDSiSpRlFWR3J+0nYg5rJVN9lTRx3pbXRJk5H057eGeXS2L44ZflLe4pnUd ww53jvYTDHPsM3TNbxQ3Vk6U25m/f41g+8cw0R93ZhglrpxPf5k+her8E7JzOLWfCzWc E5WDl5nYtmPUtb7tLD8Psik/MuMduSFHyNKhJJMpfc9i2/Hix6hzSWFTE38sRKlrZq3/ wkxqWytqUHfJUIV/VAWOvnOdrj3LDT2i04f+SnUsR8pXKsOIo80tO6vAq/xNL6bKlmkh CgkcyvnAmgQGcTAICZEfrC27wZsooZNqa8KFofw/xUyuZSW1ra81lWW4P46fPAsNH700 IR5Q== 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=IpiXoaEfhRVC/TiOprnmSx5/CzTTYxkk2Z3fpn71RCE=; b=DXxoXcVXQ3cgCRfjxbM/xjz6uZCnobHfujPTMLvc3WB1uYYVkLNULst+Ypw3SWKAzI rp+u1cHFtleCyLVhZBhLsDQLnIRvyf+f2BL/bcGBbxrSdMhrGv2DlgODaS7h+xGeFocc ZDUxng+VW+12MM2k4f7NaUdnIsPrl8qlgiOb7AvZSsXJnL6ftrmprahfjz7ITFWkEvTI 85VqIOQBaSJS+3LJIDdFFwTVIhJMy7vsZpw6NO/EjAsQMMTkGFVl6Yy4+8diYtFTRepB jqNxzHgFZFzhq0pFBow5UB7H4+Z+Xof/25XtCUdM/2BwiMt/tsqsKJ4mhrVqVt1yHaMt 1Ljg== X-Gm-Message-State: AOAM532qvnfJqgB4/qAEnzPB7izDT3j19IIgB9eITLkFiUdNRG9qPx98 TPofjoSVNax8kI9SND1XYMD1hRnGK4gFRw== X-Google-Smtp-Source: ABdhPJy9d85FEkeqqnEQaC/Th8l7Zp8/PAymqCSZ0KRDh7yYuZath1yYVLNCx1hLxXaUKzfBpI9JyA== X-Received: by 2002:a65:4507:: with SMTP id n7mr3511459pgq.180.1596199720490; Fri, 31 Jul 2020 05:48:40 -0700 (PDT) Received: from yangdongdo-OptiPlex-9010.mioffice.cn ([209.9.72.214]) by smtp.gmail.com with ESMTPSA id m20sm10378742pgn.62.2020.07.31.05.48.35 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 31 Jul 2020 05:48:40 -0700 (PDT) From: Dongdong Yang To: gregkh@linuxfoundation.org, rjw@rjwysocki.net, viresh.kumar@linaro.org, mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de Cc: linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org, linux-pm@vger.kernel.org, yangdongdong@xiaomi.com, tanggeliang@xiaomi.com, taojun@xiaomi.com, huangqiwu@xiaomi.com, rocking@linux.alibaba.com, fengwei@xiaomi.com, zhangguoquan@xiaomi.com, gulinghua@xiaomi.com, duhui@xiaomi.com Subject: [PATCH v2] Provide USF for the portable equipment. Date: Fri, 31 Jul 2020 20:46:29 +0800 Message-Id: X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: Dongdong Yang This patch provides USF(User Sensitive Feedback factor) auxiliary cpufreq governor to support high level layer sysfs inodes setting for utils adjustment purpose from the identified scenario on portable equipment. Because the power consumption and UI response are more cared for by portable equipment users. And the "screen off" status stands for no request from the user, however, the kernel is still expected to notify the user in time on modem, network or powerkey events occur. USF provides "sched_usf_non_ux_r" sysfs inode to cut down the utils from user space tasks according to high level scenario. In addition, it usually hints more cpufreq demand that the preemptive counts of the tasks on the cpu burst and over the user expecting completed time such as the ratio sysctl_sched_latency to sysctl_sched_min_granularity on "screen on" status, which more likely with more UI. The sysfs inodes "sched_usf_up_l0_r" and "sched_usf_down_r" have been provided to adjust the utils according to high level identified scenario to alloc the cpufreq in time. Changes in v2 - Add adjust_task_pred_set switch. - Move adjust_task_pred_demand declaration into sched.h - Update comments. Dongdong Yang (1): sched: Provide USF for the portable equipment. drivers/staging/Kconfig | 2 + drivers/staging/Makefile | 1 + drivers/staging/fbsched/Kconfig | 10 ++ drivers/staging/fbsched/Makefile | 2 + drivers/staging/fbsched/usf.c | 346 +++++++++++++++++++++++++++++++++++++++ kernel/sched/cpufreq_schedutil.c | 3 + kernel/sched/sched.h | 10 ++ 7 files changed, 374 insertions(+) create mode 100644 drivers/staging/fbsched/Kconfig create mode 100644 drivers/staging/fbsched/Makefile create mode 100644 drivers/staging/fbsched/usf.c -- 2.7.4