From patchwork Tue May 12 02:13:14 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Turquette X-Patchwork-Id: 6385001 Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id B39829F1C2 for ; Tue, 12 May 2015 02:15:21 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E32E22038D for ; Tue, 12 May 2015 02:15:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 47349203B5 for ; Tue, 12 May 2015 02:15:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752086AbbELCPR (ORCPT ); Mon, 11 May 2015 22:15:17 -0400 Received: from mail-ie0-f177.google.com ([209.85.223.177]:33415 "EHLO mail-ie0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932086AbbELCOh (ORCPT ); Mon, 11 May 2015 22:14:37 -0400 Received: by iepj10 with SMTP id j10so121278981iep.0 for ; Mon, 11 May 2015 19:14:37 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=gI6dO16olvkuL93YiR5jHQKqbDPx23noT8E5SLoinnQ=; b=OxLYzLe0HGSFKwO0yVK2iNDYTbxJ1vgguJ8VbdwGQR0yD+bcySEAn9acXi6sgcXunF SeAM9feLCIiDyVUdhNrOKMDfUw0pncBm5AN+HLjIB/L2bvfa5xyp+qUVWVCuwT65x3zZ Z7VJ9EdJ//j/X60IioWgKzR2ElBeytHoerIHd/jcsVk0K4vnlLltPB2G0C4Yodq0xnMh EEPK9MZ1rRxMiAhCDGsp9QW9GR5LB9aG/9Rw+2TgNIXc/V/G7Qi4HGet4E+R0PskyB5U UR9trJIiMa4kMWWUNZ7UjR5uBWxn8Rit8EA4nsQZNn5OAfYb7wASGegKUqirM2B5dpRr zb1A== X-Gm-Message-State: ALoCoQmpq/Fl+PHot4GPL1qPARd1HbOAInmkIOHpNY/0LAAkWFVxmJa6IY75hsqSiPcV3NDA0501 X-Received: by 10.50.8.68 with SMTP id p4mr716174iga.4.1431396877031; Mon, 11 May 2015 19:14:37 -0700 (PDT) Received: from quantum.home (pool-71-119-96-202.lsanca.fios.verizon.net. [71.119.96.202]) by mx.google.com with ESMTPSA id i191sm7408793ioe.0.2015.05.11.19.14.34 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 11 May 2015 19:14:36 -0700 (PDT) From: Michael Turquette To: peterz@infradead.org, mingo@kernel.org Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, preeti@linux.vnet.ibm.com, Morten.Rasmussen@arm.com, riel@redhat.com, efault@gmx.de, nicolas.pitre@linaro.org, daniel.lezcano@linaro.org, dietmar.eggemann@arm.com, vincent.guittot@linaro.org, amit.kucheria@linaro.org, juri.lelli@arm.com, rjw@rjwysocki.net, viresh.kumar@linaro.org, ashwin.chaugule@linaro.org, alex.shi@linaro.org, abelvesa@gmail.com, Michael Turquette Subject: [PATCH RFC v2 3/4] sched: expose capacity_of in sched.h Date: Mon, 11 May 2015 19:13:14 -0700 Message-Id: <1431396795-32439-4-git-send-email-mturquette@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1431396795-32439-1-git-send-email-mturquette@linaro.org> References: <1431396795-32439-1-git-send-email-mturquette@linaro.org> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP capacity_of is of use to a cpu frequency scaling policy based on cfs load tracking and cpu capacity utilization metrics. Expose this call in sched.h so it can be used in such a policy. Signed-off-by: Michael Turquette --- Changes in v2: Do not expose get_cpu_usage or capacity_orig_of in sched.h Expose capacity_of instead kernel/sched/fair.c | 5 ----- kernel/sched/sched.h | 5 +++++ 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 75aec8d..d27ded9 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -4361,11 +4361,6 @@ static unsigned long target_load(int cpu, int type) return max(rq->cpu_load[type-1], total); } -static unsigned long capacity_of(int cpu) -{ - return cpu_rq(cpu)->cpu_capacity; -} - static unsigned long capacity_orig_of(int cpu) { return cpu_rq(cpu)->cpu_capacity_orig; diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index e0e1299..4925bc4 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1396,6 +1396,11 @@ unsigned long arch_scale_freq_capacity(struct sched_domain *sd, int cpu) } #endif +static inline unsigned long capacity_of(int cpu) +{ + return cpu_rq(cpu)->cpu_capacity; +} + static inline void sched_rt_avg_update(struct rq *rq, u64 rt_delta) { rq->rt_avg += rt_delta * arch_scale_freq_capacity(NULL, cpu_of(rq));