linux-kernel - RE: [PATCH] Display Intel Dynamic Acceleration feature in /proc/cpuinfo

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Message-ID: <653FFBB4508B9042B5D43DC9E18836F5EE129C@scsmsx415.amr.corp.intel.com>
Date:	Thu, 24 May 2007 16:13:04 -0700
From:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Andi Kleen" <ak@...e.de>, "Dave Jones" <davej@...hat.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Brown, Len" <len.brown@...el.com>,
	"linux-kernel" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] Display Intel Dynamic Acceleration feature in /proc/cpuinfo

 

>-----Original Message-----
>From: H. Peter Anvin [mailto:hpa@...or.com] 
>Sent: Thursday, May 24, 2007 4:04 PM
>To: Pallipadi, Venkatesh
>Cc: Andi Kleen; Dave Jones; Andrew Morton; Brown, Len; linux-kernel
>Subject: Re: [PATCH] Display Intel Dynamic Acceleration 
>feature in /proc/cpuinfo
>
>Venki Pallipadi wrote:
>> 
>> I can do it in intel setup function. But, the feature may 
>not be activated
>> unless the driver is loaded. Going by the hardware capability point
>> of view, we can do it in setup function.
>> 
>> The feature appears in CPUID 6 (called Power Management 
>Leaf) instead of
>> regular CPUID 1 features.
>> 
>
>This sounds like it should be a new CPUID word?
>

Yes. But it only has 3 features defined right now. 2 in EAX and one in
ECX. Should I use 2 new words for these bits or just use the software
defined bits as in my earlier patch?

Thanks,
Venki 
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