[Xorg] Update on video memory manager work

[Alan Cox]

On Iau, 2004-07-29 at 01:27, Ian Romanick wrote:
> So, I'm going to rework the interface a little bit so that the allocator 
> can look at all the require allocations at once.  It will place them in 
> memory using some sort of path finding algorithm (probably A*).  That 
> seems like a reasonably good fit.  Who thought you'd need AI for a video 
> driver? ;)

Cool stuff. The sis6326 needs this ability for a much more primitive
reason - because a texture cannot have some levels in framebuffer and
some in AGP.