linux-kernel - Re: [PATCH v3 0/2] x86, mtrr: fixs for mtrr

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Message-ID: <51C099D2.3090506@zytor.com>
Date:	Tue, 18 Jun 2013 12:33:06 -0500
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>,
	Joshua Covington <joshuacov@...glemail.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/2] x86, mtrr: fixs for mtrr_cleanup

On 06/18/2013 12:28 PM, Yinghai Lu wrote:
> On Tue, Jun 18, 2013 at 9:29 AM, H. Peter Anvin <hpa@...or.com> wrote:
>>
>> On this subject: what do we need to happen to be able to dump the MTRR
>> cleanup stuff?
> 
> the old x server like to add Write-combining entry in MTRR.
> looks like drm for mga200 is adding that too ?
>

"Old X server" here has been a long time now.  I need to dig into the
MGA200 I guess...

> We need to make them to use PAT instead.

Yes.

	-hpa


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