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

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Message-ID: <20070524210103.GA5380@redhat.com>
Date:	Thu, 24 May 2007 17:01:04 -0400
From:	Dave Jones <davej@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Venki Pallipadi <venkatesh.pallipadi@...el.com>,
	Len Brown <len.brown@...el.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...e.de>
Subject: Re: [PATCH] Display Intel Dynamic Acceleration feature in /proc/cpuinfo

On Thu, May 24, 2007 at 01:55:13PM -0700, Andrew Morton wrote:
 > On Wed, 23 May 2007 15:46:37 -0700
 > Venki Pallipadi <venkatesh.pallipadi@...el.com> wrote:
 > 
 > > Display Intel Dynamic Acceleration feature in /proc/cpuinfo. This feature
 > > will be enabled automatically by current acpi-cpufreq driver and cpufreq.
 > 
 > So you're saying that the cpufreq code in Linus's tree aleady supports IDA?
 > If so, this is a 2.6.22 patch, isn't it?

>From my limited understanding[*], ida is the "We're single threaded,
disable the 2nd core, and clock the first core faster" magic.
It doesn't need code-changes, as its all done in hardware afaik.

identifying & exporting the flags on earlier kernels should be harmless,
but not really 'mustfix'.

	Dave

[*] As in I've read about this more on the inquirer etc than
I have on Intel docs so far.  ;-)

-- 
http://www.codemonkey.org.uk
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