linux-kernel - Re: [PATCH] powercap / RAPL : remove dependency on iosf

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Date:	Fri, 18 Sep 2015 08:43:56 -0700
From:	Jacob Pan <jacob.jun.pan@...ux.intel.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:	Pengyu Ma <pengyu.ma@...driver.com>, rafael.j.wysocki@...el.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] powercap / RAPL : remove dependency on iosf_mbi

On Fri, 18 Sep 2015 02:09:55 +0200
"Rafael J. Wysocki" <rjw@...ysocki.net> wrote:

> On Thursday, September 17, 2015 03:31:41 PM Pengyu Ma wrote:
> > iosf_mbi is supported on Quark, Braswell, Baytrail and some Atom
> > SoC, but RAPL is not limited to these SoC, it supports almost Intel
> > CPUs. Remove this dependece to make RAPL support more Intel CPUs.
> > 
> > Please select IOSF_MBI on Atom SoCs.
> > 
Unlike Quark, I don't think we want to or do differentiate Atom from
other x86 at compile time. IOSF driver can be compiled as a module also,
therefore RAPL driver needs this explicit dependency at compile time.

> > Signed-off-by: Pengyu Ma <pengyu.ma@...driver.com>
> 
> Jacob?
> 
> > ---
> >  drivers/powercap/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/powercap/Kconfig b/drivers/powercap/Kconfig
> > index 85727ef..a7c81b5 100644
> > --- a/drivers/powercap/Kconfig
> > +++ b/drivers/powercap/Kconfig
> > @@ -17,7 +17,7 @@ if POWERCAP
> >  # Client driver configurations go here.
> >  config INTEL_RAPL
> >  	tristate "Intel RAPL Support"
> > -	depends on X86 && IOSF_MBI
> > +	depends on X86
> >  	default n
> >  	---help---
> >  	  This enables support for the Intel Running Average Power
> > Limit (RAPL)
> > 
> 

[Jacob Pan]
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