Re: Support for i386 PATs

[Thomas Hellström]

Dave Jones wrote:
> On Sat, Jan 27, 2007 at 10:20:18AM +0100, Thomas Hellström wrote:
>  > Hi!
>  > 
>  > Does anybody have a strong opinion against adding support for
>  > i386 Page Attribute Tables?
>
> It pops up about once a year, everyone agrees it'd be a good idea,
> and then nothing happens.  Last year, I started picking over
> Terrence Ripperda's original implementation, but that needs a bit
> of work. (http://lkml.org/lkml/2005/5/12/187)
> Whoa, two years even.  Time flies.
>
> 		Dave
>
>   
Ah.
This might explain why nothing happens :).

I had something much simpler in mind.
Just the basic PAT setup and some new pgprot_ types which affected 
drivers could use directly.

Like in(drivers/char/drm/drm_vm.c) where ia64 has a 
pgprot_writecombine() function.

/Thomas




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