linux-kernel - Re: thermal: mediatek: Add cpu power cooling model

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1441727195.20470.40.camel@mtksdaap41>
Date:	Tue, 8 Sep 2015 23:46:35 +0800
From:	dawei chien <dawei.chien@...iatek.com>
To:	Viresh Kumar <viresh.kumar@...aro.org>
CC:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	"Mark Rutland" <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	"Catalin Marinas" <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Daniel Kurtz <djkurtz@...omium.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Eddie Huang <eddie.huang@...iatek.com>,
	"Daniel Lezcano" <daniel.lezcano@...aro.org>,
	Howard Chen <howard.chen@...aro.org>,
	Yingjoe Chen <yingjoe.chen@...iatek.com>,
	<devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>,
	<linux-mediatek@...ts.infradead.org>,
	<srv_heupstream@...iatek.com>, Sascha Hauer <kernel@...gutronix.de>
Subject: Re: thermal: mediatek: Add cpu power cooling model

Hi Viresh,

On Mon, 2015-09-07 at 11:39 +0530, Viresh Kumar wrote:
> On 04-09-15, 17:01, Dawei Chien wrote:
> > Use Intelligent Power Allocation (IPA) technical to add
> > static/dynamic power model for binding CPU thermal zone.
> > The power allocator governor allocates power budget to control
> > CPU temperature.
> 
> Sorry but this isn't enough really.. I don't have time to go through
> the code and understand the purpose of the series.
> 
> Please explain here in detail:
> - Why this is needed.
Power Allocator governor is able to keep SOC temperature within a
defined temperature range to avoid SOC overheat and keep it's
performance. mt8173-cpufreq.c need to register its' own power model with
power allocator thermal governor, so that power allocator governor can
allocates suitable power budget to control CPU temperature.

> - What/How you are doing it.
Measure and create dynamic/static power model, and register cooling
device of_cpufreq_power_cooling_register for MT8173.
> 
> (Don't resend, just reply to this email :) )
> 


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/