linux-kernel - Re: [PATCH] x86: create array based interface to chagne page attribute

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Message-ID: <20080426095115.GA15212@elte.hu>
Date:	Sat, 26 Apr 2008 11:51:15 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Dave Airlie <airlied@...hat.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...hat.com,
	arjan@...ux.intel.com, Dave Airlie <airlied@...ux.ie>
Subject: Re: [PATCH] x86: create array based interface to chagne page
	attribute


* Dave Airlie <airlied@...hat.com> wrote:

> From: Dave Airlie <airlied@...ux.ie>
> 
> When cpa was refactored to the new set_memory_ interfaces, it removed 
> a special case fast path for AGP systems, which did a lot of page by 
> page attribute changing and held the flushes until they were finished. 
> The DRM memory manager also required this to get useable speeds.
> 
> This introduces a new interface, which accepts an array of memory 
> addresses to have attributes changed on and to flush once finished.
> 
> Further changes to the AGP stack to actually use this interface will 
> be published later.

thanks Dave, applied.

	Ingo
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