Re: gicon and low-level I/O

[Jos Hulzink]

On 2 Nov 1999, Marcus Sundberg wrote:

> Basicly you never want to cache anything that sits on the other side
> of the PCI-bus. MTRR write combining should always be turned on for
> memory, but never for registers. That's about it.
> AGP is ofcourse another story...
> 
Eh.. Enabling MTRR write combining for the videomemory of some chips
causes crashes. Yes it's me again with my outdated ViRGE :)

And I like to know your AGP story, for it seems S3 has managed to get a
ViRGE listening to an AGP bus... (AGP0.0001X or something...)

Jos