From mboxrd@z Thu Jan  1 00:00:00 1970
From: yong.zhang0@gmail.com (Yong Zhang)
Date: Tue, 19 Jun 2012 17:01:11 +0800
Subject: [PATCH v2 5/5] sched: cpu_power: enable ARCH_POWER
In-Reply-To: <1340094536-20873-6-git-send-email-vincent.guittot@linaro.org>
References: <1340094536-20873-1-git-send-email-vincent.guittot@linaro.org>
 <1340094536-20873-6-git-send-email-vincent.guittot@linaro.org>
Message-ID: <20120619090110.GA1692@zhy>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.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 <vincent.guittot@linaro.org>
> ---
>  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