Messages in this thread |  | | | Date | Mon, 28 Apr 2008 18:01:58 +0200 | | From | Gabriel C <> | | Subject | Re: [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v2 |
Mika Fischer wrote:
>>> how relevant is this feature with modern Xorg? I thought modern Xorg
>>> would get its mappings via /sys, hence it would not have to touch
>>> MTRRs at all.
>> that's true for current X, but not for 6 month old X :=(
>
> Ah, so the new X will be able to use the video memory in write-combining
> mode even if I have an MTRR saying this area is uncachable or write-back?
>
> If that is the case, then I agree that this patch is not really needed.
I doubt there will be any usable Xorg release soon.
And I doubt peoples will run Xorg , mesa , etc master HEAD to have that feature.
I think this patch is needed for now but as Ingo said , it should not be default.
Peoples with these sort problems could boot with some option to enables this workaround.
Just my opinion.
>
> Regards,
> Mika
>
Gabriel
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