linux-kernel - Re: [PATCH 5/5] cpufreq:boost:Kconfig: Enable boost support at Kconfig

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]

Date:	Thu, 6 Jun 2013 11:21:04 -0400
From:	Dave Jones <davej@...hat.com>
To:	Lukasz Majewski <l.majewski@...sung.com>
Cc:	Viresh Kumar <viresh.kumar@...aro.org>,
	"Rafael J. Wysocky" <rjw@...k.pl>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Jonghwa Lee <jonghwa3.lee@...sung.com>,
	Myungjoo Ham <myungjoo.ham@...sung.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Lukasz Majewski <l.majewski@...ess.pl>,
	Andre Przywara <andre.przywara@...aro.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>
Subject: Re: [PATCH 5/5] cpufreq:boost:Kconfig: Enable boost support at
 Kconfig

On Thu, Jun 06, 2013 at 05:14:31PM +0200, Lukasz Majewski wrote:
 > Hi Dave,
 > 
 > > On Thu, Jun 06, 2013 at 09:07:52AM +0200, Lukasz Majewski wrote:
 > > 
 > >  > +config CPU_FREQ_BOOST
 > >  > +	bool "CPU frequency boost support"
 > >  > +	help
 > >  > +	  Switch to enable support for frequency boost
 > >  > +
 > >  > +	  If in doubt, say N.
 > >  > +
 > > 
 > > This help text is devoid of any useful information.
 > > 
 > > On what platforms ? What's the upside/downside ? Why is it an option ?
 > 
 > I shall be more verbose here.
 > 
 > The boost option is supposed to provide one solution to control
 > software based (like is is done with Samsung Exynos4 SoC) and hardware
 > based (like Intel's Turbo Boost feature) boost.
 > 
 > Support for Intel's boost is already in mainline. Therefore I aimed to
 > extend cpufreq to also manage software based solutions (e.g. Exynos).

Given CPUFREQ is available on more platforms than X86/ARM, this option
could also use a depends.

	Dave

--
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/