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Date: Mon, 25 Sep 2017 10:15:31 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Leo Yan <leo.yan@linaro.org>
Cc: Ingo Molnar <mingo@redhat.com>, linux-kernel@vger.kernel.org,
        Dietmar Eggemann <dietmar.eggemann@arm.com>,
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        Chris Redpath <Chris.Redpath@arm.com>,
        Joel Fernandes <joelaf@google.com>,
        Vincent Guittot <vincent.guittot@linaro.org>
Subject: Re: [PATCH 2/2] cpufreq: schedutil: consolidate capacity margin
 calculation
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On Sat, Sep 23, 2017 at 07:04:44AM +0800, Leo Yan wrote:
> +	freq = (freq * capacity_margin / 1024) * util / max;

We have SCHED_CAPACITY_SCALE for that..