Jason R Thorpe wrote:

> On Sat, Dec 15, 2001 at 10:57:17PM +0100, Witold J. Wnuk wrote:
>
>  > Is 32bit PCI memory space still mapped to the first 4GB in such case? I would
>  > think that it should, for compatibility reasons and convenience.
>  >
>  > So either some of these 4GB RAM is mapped above 4GB in physical address space
>  > or is masked by mapped PCI devices.
>  >
>  > How is it done? Could someone shed some light on this?
>
> Yah, you need bounce buffers (remember ISA? :-)
>
> PCs suck, sigh.

You could use 64 bit PCI devices.  Does NetBSD support that yet?

    -- Lennart