Re: [patch 2/2] reduce tlb/cache flush times of agpgart memoryallocation

[Ingo Molnar]

* Li, Shaohua <shaohua.li@xxxxxxxxx> wrote:

> > it would be great if you had time to update his patch and this to 
> > it...
>
> I'll do it soon.

great! Please do it as a delta patch against tip/master:

   http://people.redhat.com/mingo/tip.git/README

as your first two patches are being tested already:

 466ae83: reduce tlb/cache flush times of agpgart memory allocation
 1ac2f7d: introduce two APIs for page attribute

[ but it can all only go upstream once the observations from Arjan have
  been addressed. ]

> > and the logic probably should be "if there's more than X pags in the 
> > the array, just use wbinvd". Although wbinvd is very painful if you 
> > have 12Mb of cache and you wipe it for all cores in the system ;-(
>
> This might not be that bad, changing attribute isn't frequently used.

dont some X/DRM drivers do it for a wide range of GX ops?

	Ingo
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