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=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 0ACBFC76188 for ; Tue, 23 Jul 2019 06:14:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D2A8520578 for ; Tue, 23 Jul 2019 06:14:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="acOECtFz" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388084AbfGWGO0 (ORCPT ); Tue, 23 Jul 2019 02:14:26 -0400 Received: from mail-pl1-f195.google.com ([209.85.214.195]:37888 "EHLO mail-pl1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731307AbfGWGOZ (ORCPT ); Tue, 23 Jul 2019 02:14:25 -0400 Received: by mail-pl1-f195.google.com with SMTP id az7so20162193plb.5 for ; Mon, 22 Jul 2019 23:14:25 -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:in-reply-to:references :mime-version:content-transfer-encoding; bh=nSry5tHM9RfBOmIKpr9LmoQMa70G9y55/xkG15xZ4dM=; b=acOECtFzXcNr8wH91jVpU+QCAxg4f02keJtwJpfZ71lbvRGloj62uIAu74gaAy0Bo0 S51fFMkXeSB0ABaR8PMZ7u9iHNj7/Jxegy3RYT5dfp4kHfGC4FhBI2jZYsu6PiDQRssw jhswXrVHzcxqk5BriDTnks0Nsemh2eF6IPFFso9iPH4hdvv6SJQ0JoeKrgOoXctaclcD 7oExmNPhSNYCLwoj9Ku6ftzNhW7eyqdJfhCnrHfFVT2jqHYxT5Roj5+jvEvWAO9+9k58 RvPxHt+csJ4SL0bHacKFmdRa2jFNzLobeo29CPPIlpdnqM3GCqJba/1uH61dfhtylHsQ pu8Q== 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=nSry5tHM9RfBOmIKpr9LmoQMa70G9y55/xkG15xZ4dM=; b=WanozS06YleopqKu9R2ND8H+eGpKgV+kuq1W+apvwXAKXAV3FoVPu73dRR6+JR/wgx mOKX9qoyAd9E7WTcUpq0dD/ubKh98wYsaDS6H1SKNaBLE549XwrP5+ocXJHbqY1qjBiZ 1oVeMQHDXyhoJVfHznevQwRC21TQd9inNDMtXyvfqJYtNp9hg3sZCqzAKmgx06nqvO/a b6zje72sll8FDIFCVA6YoeKQOIvBdSiTTPjubn7y04+q03S8hzvxrD+1jFwK68/7BigD noJOkMLO1LkR7oQIvf24KU9f1XTt4X0wKhsivDEP47rp+lpOW0nZow6q5iIBnAMVJaaL Z6RA== X-Gm-Message-State: APjAAAXtWKAlZMANRuYDxXzsBRj4Vx357ow9k4FGmduAh89O4NOlULdR sB6BWZjaA01FafofjM/eQtay1A== X-Google-Smtp-Source: APXvYqyFSL4Ua4WRS4fM0C+hsgD4WHVzH/qYHJ7W9Np+1dVPjMabaI19L/MGrJjv4iAi3n7UC7CgFA== X-Received: by 2002:a17:902:b702:: with SMTP id d2mr81525584pls.259.1563862464605; Mon, 22 Jul 2019 23:14:24 -0700 (PDT) Received: from localhost ([122.172.28.117]) by smtp.gmail.com with ESMTPSA id a3sm38023673pfl.145.2019.07.22.23.14.23 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 22 Jul 2019 23:14:24 -0700 (PDT) From: Viresh Kumar To: Rafael Wysocki , Viresh Kumar Cc: linux-pm@vger.kernel.org, Vincent Guittot , linux-kernel@vger.kernel.org Subject: [PATCH V2 01/10] cpufreq: Add policy create/remove notifiers Date: Tue, 23 Jul 2019 11:44:01 +0530 Message-Id: <1b93721f076ec9006b99c92e8a7045d01630cf4b.1563862014.git.viresh.kumar@linaro.org> X-Mailer: git-send-email 2.21.0.rc0.269.g1a574e7a288b In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This reverts commit f9f41e3ef99ac9d4e91b07634362e393fb929aad. We have a new use case for policy create/remove notifiers (for allocating/freeing QoS requests per policy), lets add them back. Signed-off-by: Viresh Kumar --- drivers/cpufreq/cpufreq.c | 15 ++++++++++++++- include/linux/cpufreq.h | 2 ++ 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 8dda62367816..c13dcb59b30c 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1266,7 +1266,17 @@ static void cpufreq_policy_free(struct cpufreq_policy *policy) DEV_PM_QOS_MAX_FREQUENCY); dev_pm_qos_remove_notifier(dev, &policy->nb_min, DEV_PM_QOS_MIN_FREQUENCY); - dev_pm_qos_remove_request(policy->max_freq_req); + + if (policy->max_freq_req) { + /* + * CPUFREQ_CREATE_POLICY notification is sent only after + * successfully adding max_freq_req request. + */ + blocking_notifier_call_chain(&cpufreq_policy_notifier_list, + CPUFREQ_REMOVE_POLICY, policy); + dev_pm_qos_remove_request(policy->max_freq_req); + } + dev_pm_qos_remove_request(policy->min_freq_req); kfree(policy->min_freq_req); @@ -1391,6 +1401,9 @@ static int cpufreq_online(unsigned int cpu) ret); goto out_destroy_policy; } + + blocking_notifier_call_chain(&cpufreq_policy_notifier_list, + CPUFREQ_CREATE_POLICY, policy); } if (cpufreq_driver->get && has_target()) { diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 536a049d7ecc..afc10384a681 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -458,6 +458,8 @@ static inline void cpufreq_resume(void) {} /* Policy Notifiers */ #define CPUFREQ_ADJUST (0) #define CPUFREQ_NOTIFY (1) +#define CPUFREQ_CREATE_POLICY (2) +#define CPUFREQ_REMOVE_POLICY (3) #ifdef CONFIG_CPU_FREQ int cpufreq_register_notifier(struct notifier_block *nb, unsigned int list); -- 2.21.0.rc0.269.g1a574e7a288b