Reinoud Zandijk <reinoud@netbsd.org> writes:

> Hi John and Robert,
> 
> On Sun, Jun 10, 2001 at 06:51:37PM +0100, John Fremlin wrote:
> > Robert Swindells <rjs@fdy2.demon.co.uk> writes:
> > Perhaps the idea should instead be extended to sort of generic "IO
> > memory" - on psionw there is some memory that is used for fb (part of
> > it can be allocated as normal memory too provided you don't choose
> > 4bpp). It'd be nice if (a) that memory could be used and (b) that it
> > would only be used as a last resort to make it easier to switch to
> > 4bpp at runtime.
> 
> Same for the RiscPC/A7000's ... the screen memory can be used as normal 
> memory too but really also only have to be used as a last resort for memory 
> ... i.e. memory that can allways easily be swapped out... i.e. non locked 
> text code ... ??

I should have thought that this would be fairly common across a wide
range of architectures. Is there no support in UVM for this sort of
thing? IMHO this discussion would be better placed on tech-kern or
something

[...]


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