El Sáb 20 Oct 2001 02:49, Keith Whitwell escribió:
> On Fri, 19 Oct 2001 17:24, Leif Delgass wrote:
> > Great work! I'll check this out soon.
> >
> > Once we get DMA working for the 3D operations, I guess the next task is
> > to get the 2D acceleration routines synchronizing with the 3D ones so we
> > can reenable XAA, right? Also, it looks as if the AGP setup has not been
> > finished yet. At this point, atidri.c allocates 8M (hardcoded value, but
> > the agpgart module tells me I have a 64M AGP aperture) and maps 2M of it
> > for vertex buffers, but it never sets AGP_BASE or AGP_CNTL. There's
> > currently no allocation of an AGP region for textures. I'm seeing
> > problems with missing textures in the Quake 3 demo and some other GL
> > apps.
> >
> > It's great to get past this hurdle, maybe we can get a new CVS branch
> > going soon!
>
> Who would need cvs access? It's time this work got some support...
Well. I think we must put this work into CVS ASAP, so everybody could begin
to contribute with all the work that has been unlocked.
I don't mind doing this work, but I only have a 56K modem connection and
never have worked with CVS (could be this is time to learn), only have made
some checkouts.
Now, that we have find the problem (I'd better say the cause), I want to say
that I also commented out a section in the 2D init driver:
if (pATI->Chip >= ATI_CHIP_264VT4)
{
outm(GUI_CNTL, pATIHW->gui_cntl);
pATI->nAvailableFIFOEntries = 0;
ATIMach64PollEngineStatus(pATI);
}
This code was updating the GUI_CNTL value, found to be zero for
Chip>=ATI_CHIP_264VT4.
Anyway, why is this happening? Is it a card bug? In the register document the
00 value for this register is documented and valid (as the max FIFO length
value).
Well, talking about CVS. What do you think is better? I would made the update
in the CVS if you give me access. It could be nice if someone gives me a
little recipe to made the upgrade without problems, or at least, recommend
some guide about CVS.
--
M. Teira
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