Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755037Ab3GEAtn (ORCPT ); Thu, 4 Jul 2013 20:49:43 -0400 Received: from mail-ob0-f177.google.com ([209.85.214.177]:35065 "EHLO mail-ob0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750959Ab3GEAtm (ORCPT ); Thu, 4 Jul 2013 20:49:42 -0400 MIME-Version: 1.0 In-Reply-To: <1372951039-10375-2-git-send-email-k.krivyakin@samsung.com> References: <1372951039-10375-1-git-send-email-k.krivyakin@samsung.com> <1372951039-10375-2-git-send-email-k.krivyakin@samsung.com> Date: Fri, 5 Jul 2013 09:49:41 +0900 X-Google-Sender-Auth: -1hBVTGjf4jfRkNNgNkqkwZacWY Message-ID: Subject: Re: [PATCH RFC 1/3] Add interface to receive current cpu power From: Kyungmin Park To: Konstantin Krivyakin , "Rafael J. Wysocki" , viresh.kumar@linaro.org, mingo@redhat.com, Peter Zijlstra Cc: i.zhbanov@samsung.com, e.voevodin@samsung.com, linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2962 Lines: 82 + cpufreq maintainers On Fri, Jul 5, 2013 at 12:17 AM, Konstantin Krivyakin wrote: > Signed-off-by: Konstantin Krivyakin > --- > drivers/cpufreq/cpufreq.c | 17 +++++++++++++++++ > include/linux/cpufreq.h | 6 ++++++ > 2 files changed, 23 insertions(+) > > diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c > index 6a015ad..4180e89 100644 > --- a/drivers/cpufreq/cpufreq.c > +++ b/drivers/cpufreq/cpufreq.c > @@ -1538,6 +1538,23 @@ int cpufreq_unregister_notifier(struct notifier_block *nb, unsigned int list) > } > EXPORT_SYMBOL(cpufreq_unregister_notifier); > > +/** > + * cpu_power_get - get current CPU power > + * @cpu: CPU number > + */ > +u64 cpu_power_get(int cpu) > +{ > + struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); > + u64 ret_power = 0; > + > + if (policy) { > + ret_power = policy->current_power; > + cpufreq_cpu_put(policy); > + } > + > + return ret_power; > +} > +EXPORT_SYMBOL(cpu_power_get); > > /********************************************************************* > * GOVERNORS * > diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h > index 4d7390b..67323af 100644 > --- a/include/linux/cpufreq.h > +++ b/include/linux/cpufreq.h > @@ -107,6 +107,7 @@ struct cpufreq_policy { > unsigned int max; /* in kHz */ > unsigned int cur; /* in kHz, only needed if cpufreq > * governors are used */ > + u64 current_power; > unsigned int policy; /* see above */ > struct cpufreq_governor *governor; /* see below */ > void *governor_data; > @@ -365,6 +366,7 @@ static inline unsigned int cpufreq_get(unsigned int cpu) > #ifdef CONFIG_CPU_FREQ > unsigned int cpufreq_quick_get(unsigned int cpu); > unsigned int cpufreq_quick_get_max(unsigned int cpu); > +u64 cpu_power_get(int cpu); > #else > static inline unsigned int cpufreq_quick_get(unsigned int cpu) > { > @@ -374,6 +376,10 @@ static inline unsigned int cpufreq_quick_get_max(unsigned int cpu) > { > return 0; > } > +static inline u64 cpu_power_get(unsigned int cpu) > +{ > + return 0; > +} > #endif > > /********************************************************************* > -- > 1.7.9.5 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/