Willem Riede wrote:
>
> On Mon, 10 Nov 1997, Mike Jagdis <mike@roan.co.uk> wrote:
> >
> > The reason ARR, linear burst mode etc. aren't handled by
> > the patch is because we can't predict what the "best" settings
> > are without additional knowledge that it isn't possible to
> > probe. We have to assume that the BIOS has set things reasonably.
> > These are things that _could_ be done in user space - but only
> > by people who know their system and what they are doing.
> >
> /proc/pci shows the memory for the video that should go into an ARR - couldn't
> we parse that and offer it as a kernel config option when compiling - giving
> the oportunity to change it if compiling for another PC?
>
> Thanks. Willem Riede.
I would answer no to your question, for technical reasons:
1) Some video boards have two or even three different regions that are
mapped in PCI space. It takes a pretty smart detection code to tell
which one will be used as the Video Linear Frame Buffer (VLFB).
2) I am not willing to include the XFree86 VLFB detection code in the
Linux kernel source. I doubt Mike will do it either.
3) Some users may want to add another ARR for an extra 3D video board,
with the correct setup for texture RAM.
And now a more practical reason: you are adding yet another option to
Mike's patch :-( Mike himself has stated that he did not mean to have as
many options in a future version of the patch.
Cheers,
========================================================
Andrew D. Balsa
Home Page: http://www.tux.org/~balsa
andrewbalsa@usa.net
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