From patchwork Mon Nov 19 14:18:43 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Quentin Perret X-Patchwork-Id: 10688727 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B201413B5 for ; Mon, 19 Nov 2018 14:20:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A357D29D2D for ; Mon, 19 Nov 2018 14:20:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9642A29D38; Mon, 19 Nov 2018 14:20:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3460629D2D for ; Mon, 19 Nov 2018 14:20:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729526AbeKTAnD (ORCPT ); Mon, 19 Nov 2018 19:43:03 -0500 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:58104 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727324AbeKTAnD (ORCPT ); Mon, 19 Nov 2018 19:43:03 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9A80F15AB; Mon, 19 Nov 2018 06:19:17 -0800 (PST) Received: from queper01-lin.local (queper01-lin.cambridge.arm.com [10.1.195.48]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7E6413F5AF; Mon, 19 Nov 2018 06:19:13 -0800 (PST) From: Quentin Perret To: peterz@infradead.org, rjw@rjwysocki.net, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: gregkh@linuxfoundation.org, mingo@redhat.com, dietmar.eggemann@arm.com, morten.rasmussen@arm.com, chris.redpath@arm.com, patrick.bellasi@arm.com, valentin.schneider@arm.com, vincent.guittot@linaro.org, thara.gopinath@linaro.org, viresh.kumar@linaro.org, tkjos@google.com, joel@joelfernandes.org, smuckle@google.com, adharmap@codeaurora.org, skannan@codeaurora.org, pkondeti@codeaurora.org, juri.lelli@redhat.com, edubezval@gmail.com, srinivas.pandruvada@linux.intel.com, currojerez@riseup.net, javi.merino@kernel.org, quentin.perret@arm.com Subject: [PATCH v9 01/15] sched: Relocate arch_scale_cpu_capacity Date: Mon, 19 Nov 2018 14:18:43 +0000 Message-Id: <20181119141857.8625-2-quentin.perret@arm.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181119141857.8625-1-quentin.perret@arm.com> References: <20181119141857.8625-1-quentin.perret@arm.com> MIME-Version: 1.0 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP By default, arch_scale_cpu_capacity() is only visible from within the kernel/sched folder. Relocate it to include/linux/sched/topology.h to make it visible to other clients needing to know about the capacity of CPUs, such as the Energy Model framework. Cc: Ingo Molnar Cc: Peter Zijlstra Signed-off-by: Quentin Perret --- include/linux/sched/topology.h | 19 +++++++++++++++++++ kernel/sched/sched.h | 21 --------------------- 2 files changed, 19 insertions(+), 21 deletions(-) diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h index 6b9976180c1e..5e56d6b1e217 100644 --- a/include/linux/sched/topology.h +++ b/include/linux/sched/topology.h @@ -202,6 +202,17 @@ extern void set_sched_topology(struct sched_domain_topology_level *tl); # define SD_INIT_NAME(type) #endif +#ifndef arch_scale_cpu_capacity +static __always_inline +unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu) +{ + if (sd && (sd->flags & SD_SHARE_CPUCAPACITY) && (sd->span_weight > 1)) + return sd->smt_gain / sd->span_weight; + + return SCHED_CAPACITY_SCALE; +} +#endif + #else /* CONFIG_SMP */ struct sched_domain_attr; @@ -217,6 +228,14 @@ static inline bool cpus_share_cache(int this_cpu, int that_cpu) return true; } +#ifndef arch_scale_cpu_capacity +static __always_inline +unsigned long arch_scale_cpu_capacity(void __always_unused *sd, int cpu) +{ + return SCHED_CAPACITY_SCALE; +} +#endif + #endif /* !CONFIG_SMP */ static inline int task_node(const struct task_struct *p) diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index e0e052a50fcd..7adee78dc29d 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1861,27 +1861,6 @@ unsigned long arch_scale_freq_capacity(int cpu) } #endif -#ifdef CONFIG_SMP -#ifndef arch_scale_cpu_capacity -static __always_inline -unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu) -{ - if (sd && (sd->flags & SD_SHARE_CPUCAPACITY) && (sd->span_weight > 1)) - return sd->smt_gain / sd->span_weight; - - return SCHED_CAPACITY_SCALE; -} -#endif -#else -#ifndef arch_scale_cpu_capacity -static __always_inline -unsigned long arch_scale_cpu_capacity(void __always_unused *sd, int cpu) -{ - return SCHED_CAPACITY_SCALE; -} -#endif -#endif - #ifdef CONFIG_SMP #ifdef CONFIG_PREEMPT