From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yong Zhang Subject: Re: [PATCH v2 5/5] sched: cpu_power: enable ARCH_POWER Date: Tue, 19 Jun 2012 17:01:11 +0800 Message-ID: <20120619090110.GA1692@zhy> References: <1340094536-20873-1-git-send-email-vincent.guittot@linaro.org> <1340094536-20873-6-git-send-email-vincent.guittot@linaro.org> Reply-To: Yong Zhang Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Return-path: Content-Disposition: inline In-Reply-To: <1340094536-20873-6-git-send-email-vincent.guittot@linaro.org> Sender: linux-kernel-owner@vger.kernel.org To: Vincent Guittot Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linaro-dev@lists.linaro.org, devicetree-discuss@lists.ozlabs.org, linux@arm.linux.org.uk, a.p.zijlstra@chello.nl, grant.likely@secretlab.ca, rob.herring@calxeda.com List-Id: devicetree@vger.kernel.org On Tue, Jun 19, 2012 at 10:28:56AM +0200, Vincent Guittot wrote: > Heteregeneous ARM platform uses arch_scale_freq_power function > to reflect the relative capacity of each core > > Signed-off-by: Vincent Guittot > --- > kernel/sched/features.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/kernel/sched/features.h b/kernel/sched/features.h > index de00a48..d98ae90 100644 > --- a/kernel/sched/features.h > +++ b/kernel/sched/features.h > @@ -42,7 +42,7 @@ SCHED_FEAT(CACHE_HOT_BUDDY, true) > /* > * Use arch dependent cpu power functions > */ > -SCHED_FEAT(ARCH_POWER, false) > +SCHED_FEAT(ARCH_POWER, true) Hmmm...seems we can remove this knob completely. __weak arch_scale_smt_power() is doing all the trick. Thanks, Yong