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Date: Thu, 08 Feb 2001 11:48:17 -0700
From: Jeff Hartmann <jhartmann@valinux.com>
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To: Alex Deucher <adeucher@UU.NET>
CC: Petr Vandrovec <VANDROVE@vc.cvut.cz>, linux-kernel@vger.kernel.org
Subject: Re: [OT] Re: 2.4.x, drm, g400 and pci_set_master
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Alex Deucher wrote:

> There is preliminary support for pcigart in the dri tree.  I believe
> some people have had some success with it.
> 
> Alex
> 
> Petr Vandrovec wrote:
> 
>> On  8 Feb 01 at 13:14, Alex Deucher wrote:
>> 
>>> Jeff Hartmann wrote:
>>> 
>>>> Petr Vandrovec wrote:
>>> 
>>>> It does not use dynamic DMA mapping, because it doesn't do PCI DMA at
>>>> all.  It uses AGP DMA.  Actually, it shouldn't be too hard to get it to
>>>> work on the Alpha (just a few 32/64 bit issues probably.)  Someone just
>>>> needs to get agpgart working on the Alpha, thats the big step.
>>> 
>>> That shouldn't be too hard since many (all?) AGP alpha boards (UP1000's
>>> anyway) are based on the AMD 751 Northbridge? And there is already
>>> support for that in the kernel for x86.
>> 
>> My AlphaPC 164LX does not have AGP at all - and I want to get G200/G400 PCI
>> working on it with dri, using 21174 features.
>>                                                     Petr Vandrovec
>>                                                     vandrove@vc.cvut.cz
>> 
pcigart is only for the r128/radeon (and the radeon support is not done 
yet.)  The has been success using pcigart on the PPC, I would suspect 
the Alpha will probably be pretty easy to get going.

-Jeff


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