fc1_x86_64 preview on tyan thunder k8w (S2885ANRF REV .03)

[Alan Cox]

> >Thats different. You end up needing some mappings for kernel and user
> >space to be efficient when dealing with user mappings. Whether you can
> >get your .5Gb back depends if the chipset can remap it higher up in memory
> >so that the 3.5-4Gb RAM masked by PCI is remapped at the top of memory.
> 
> Know which ones, if any, currently can? AMD, Nvidia, or VIA?

I don't

> Why would they release a chip that couldn't?

I've no idea how complex it is to do that so I can't guess