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

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Message-ID: <CAE9FiQXM=mgvUqLh_Uj9NA8fMOSt+zCz-ev-ujnVkhHm8fQW_g@mail.gmail.com>
Date:	Tue, 18 Jun 2013 10:28:22 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>
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 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 ?

We need to make them to use PAT instead.

Yinghai
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