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From: Sundar <sunder.svit@gmail.com>
To: Amit Kucheria <amit.kucheria@linaro.org>
Cc: Amit Kachhap <amit.kachhap@linaro.org>,
	len.brown@intel.com, linaro-dev@lists.linaro.org,
	patches@linaro.org, linux-kernel@vger.kernel.org,
	linux-acpi@vger.kernel.org, mark.gross@intel.com,
	linux-pm@lists.linux-foundation.org
Subject: Re: [linux-pm] [PATCH 2/4] thermal: Add generic cpufreq cooling implementation
Date: Tue, 13 Mar 2012 15:44:57 +0530	[thread overview]
Message-ID: <CAMHCuPUQSPgt8mP2FY7hxi8345ZbLYi9NNbo5P24CDpZp50=_A@mail.gmail.com> (raw)
In-Reply-To: <CAP245DUqz-N3nG+bc-3b=4YgYk3LMJTWk_wB7Db1ZBm0fBQOSQ@mail.gmail.com>

On Tue, Mar 13, 2012 at 3:30 PM, Amit Kucheria <amit.kucheria@linaro.org> wrote:
> Sundar,

Hi Amit,

> At the moment it doesn't. But there was some discussion around
> creating something that will work with devfreq. This would allow
> peripheral drivers to be plugged in as well. Amit is investigating
> that at present.

What if we work towards a generic constraint framework which models
thermals as a performance constraint.

Drivers can register to this constraint; platform code can then decide
to issue restrictions either to the CPU or other power-hungry
peripherals based on the platform conditions.

That also allows to model CPU frequency as a generic constraint but
via an actual consumer, say the thermal driver.

Cheers!

-- 
---------
The views expressed in this email are personal and do not necessarily
echo my employers.

  reply	other threads:[~2012-03-13 10:14 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-22 10:14 [PATCH 0/4] thermal: Adding generic cpu cooling devices Amit Daniel Kachhap
2012-02-22 10:14 ` [PATCH 1/4] thermal: Add a new trip type to use cooling device instance number Amit Daniel Kachhap
2012-02-23  6:46   ` R, Durgadoss
2012-02-23 11:20     ` Amit Kachhap
2012-04-03 14:15       ` [linux-pm] " Eduardo Valentin
2012-04-04  4:23         ` Amit Kachhap
2012-04-04  6:27           ` Eduardo Valentin
2012-02-22 10:14 ` [PATCH 2/4] thermal: Add generic cpufreq cooling implementation Amit Daniel Kachhap
2012-02-22 10:58   ` Peter Meerwald
2012-02-24 11:04   ` R, Durgadoss
2012-02-27  4:32     ` Amit Kachhap
2012-03-11  4:11   ` [linux-pm] " Sundar
2012-03-13  5:07     ` Amit Kachhap
2012-03-13  9:45       ` Sundar
2012-03-13 10:00         ` Amit Kucheria
2012-03-13 10:14           ` Sundar [this message]
2012-03-13 10:52             ` Amit Kachhap
2012-03-13 11:43               ` Sundar
2012-02-22 10:14 ` [PATCH 3/4] thermal: Add generic cpuhotplug " Amit Daniel Kachhap
2012-02-22 10:14 ` [PATCH 4/4] thermal: Add support to report cooling statistics achieved by cooling devices Amit Daniel Kachhap
2012-02-22 15:45 ` [linux-pm] [PATCH 0/4] thermal: Adding generic cpu " Eduardo Valentin

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