linux-kernel - Re: [PATCH] cpufreq: Align all CPUs to the same frequency if using shared clock

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Message-ID: <CAKohpokHi=yuGJm2Nf-TAMVhGQ8Do02j+s6z3eenKRzoW8pv7g@mail.gmail.com>
Date:	Wed, 22 Jan 2014 10:48:27 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	"Li, Zhuangzhi" <zhuangzhi.li@...el.com>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Liu, Chuansheng" <chuansheng.liu@...el.com>
Subject: Re: [PATCH] cpufreq: Align all CPUs to the same frequency if using
 shared clock

On 21 January 2014 13:42, Viresh Kumar <viresh.kumar@...aro.org> wrote:
> On 21 January 2014 12:56, Li, Zhuangzhi <zhuangzhi.li@...el.com> wrote:
>> Thanks for reviewing.
>
> Its my job :)
>
>> Sorry for make you misunderstanding, on our x86 platform, we want all the CPUs share one policy by setting CPUFREQ_SHARED_TYPE_ALL, not share one HW clock line.
>
> I see.. Then probably your patch makes sense. But it is
> obviously not required for every platform that exists today.
>
> Please update it to do it only for drivers that have set
> CPUFREQ_SHARED_TYPE_ALL..

One more thing, who has set different frequencies to these cores?
I hope kernel hasn't ?

In that case, probably you are fixing a bootloader bug in kernel?
What about doing this in bootloader then?

--
virehs
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