linux-kernel - Re: [PATCH RFC 1/2] thermal/cpu idle cooling: Introduce cpu idle cooling driver

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Message-ID: <20170608120428.GC2244@mai>
Date:   Thu, 8 Jun 2017 14:04:28 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     Tao Wang <kevin.wangtao@...ilicon.com>, rui.zhang@...el.com,
        edubezval@...il.com, amit.kachhap@...il.com,
        javi.merino@...nel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, sunzhaosheng@...ilicon.com,
        vincent.guittot@...aro.org, jean.wangtao@...aro.org
Subject: Re: [PATCH RFC 1/2] thermal/cpu idle cooling: Introduce cpu idle
 cooling driver

On Tue, Jun 06, 2017 at 09:11:35AM +0530, viresh kumar wrote:
> + Daniel
> 
> On 05-06-17, 17:07, Tao Wang wrote:
> > cpu idle cooling driver performs synchronized idle injection across
> > all cpu in same cluster, offers a new method to cooling down cpu,
> > that is similar to intel_power_clamp driver, but is basically
> > designed for ARM platform.
> > Each cluster has its own idle cooling device, each core has its own
> > idle injection thread, idle injection thread use play_idle to enter
> > idle. In order to reach deepest idle state, all cores are aligned by
> > jiffies. the injected idle ratio can be controlled through cooling
> > device interface.
> > 

I don't see any ARM specific code in this driver as stated in the description.

Was it considered to make the intel_powerclamp and this driver to converge to a
single generic driver?