Re: CV3D X driver, works, but doesn't. Help!

[Ignatios Souvatzis <is%jocelyn.rhein.de@localhost>]

On Thu, Jul 22, 1999 at 08:29:51AM +0300, arto.huusko%cop.fi@localhost wrote:
>  Hello everyone,
> 
> What I have at the moment is a shakily working implementation of CopyArea,
> and a few friends. I have the same accelerated functions as the CV driver
> has but I had to throw FONTCACHE and many others away, since they completely
> failed to work. Only CopyArea and CopyPlane (and that calls always cfb
> function) work,
> And even with them the X does not always draw everything correctly or at
> all.
> 
> 1.    Why indeed the kernel driver gave access to the hardware register
> from the position it did. There was no way to access ImageTransfer, because

Guess that should be redone anyway, to get Zorro II working. Know that
1.4.1 is nearly done, I might find some time for this again.

> 2.    Because for example Line drawing does not seem to work at all and
> thing :-( b) I also suspect that the problem maybe caching (I run 68040).

> Could it be so that some/much/all of the data depending on the situation I
> write to Virge hangs around in the CPU caches?

No, not really. the area is mapped _uncached_ by the kernel, so you wont
see any cache problems.

Regards,
        Ignatios