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List:       dri-devel
Subject:    Re: [Dri-devel] Want to help in Mach64 port
From:       Pramod Immaneni <pramod () aligo ! com>
Date:       2001-07-16 6:07:58
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It would be great if you can send me the patch.

Thanks,
Pramod.

On Monday 16 July 2001 10:57 am, Manuel Teira wrote:
> El Lunes 16 Julio 2001 07:15, Pramod Immaneni escribió:
> > Hi,
> > 	Looks like we have to find the way ourselves :).  Download X4.1 sources
> > and utah-glx sources. Look at ati driver source under X which is in
> > xc/programs/Xserver/hw/xfree86/drivers/ati. If you look at atiprobe.c,
> > function ATIProbe( .. ). This contains the routine that finds if the
> > required device is present. Here you can see rage128 and radeon inits
> > being separated out of this but mach64 (ragepro) is mixed. I think the
> > starting point would be to separate out an init portion for mach64 where
> > we can register screen functions and other preinit functions for mach64.
> > After that we can follow say how rage128 is code is written, look for
> > similar pieces in the utah-glx source code and try porting other pieces.
> >
> > 	If anyone has better insights please put in your two pieces.
> >
> > Pramod.
>
> Hello.
> The code you're talking about is the 2D driver. All the DRI stuff is in
> xc/programs/Xserver/hw/xfree86/os-support/linux/drm but the calls to the
> kernel drm driver initialization, that are made thru the drm interface in
> the location you're talking about. The wrapper functions for kernel talking
> are in xc/programs/Xserver/hw/xfree86/os-support/linux and are only
> ioctling the Xserver calls to the kernel.
>
> In the 4.1.0 trunk there's no mach64 DRI code. But, some weeks ago, I've
> checkout the mach64 DRI branch (Gareth Hugues work) and adapted (more or
> less) to the 4.1.0 cvs trunk.
> I've sent this patch  to Frank Earl and he's trying to fix the DMA transfer
> code. I have no docs of the Mach64 but, anyway, I've been trying to learn
> from the GLX and DRI mach64 code, and trying to fix the DMA stuff. It seems
> that the engine is locking after trying to make a DMA transfer to the card.
>
> I can send you the files to patch the XFree 4.1.0 cvs trunk. Anyway, I
> checked out it some weeks ago, and I don't know if the trunk has changed.
>
> I'd like to help you, but I don't have the knowledge. I'm just learning
> now.
>
> Regards
> -- Manuel Teira.

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