On Wed, 11 Jun 2003, [iso-8859-15] José Fonseca wrote:

>> Are there some radeon AGP cards able to work without agpgart?
>
>Which drivers are you using?  PCI support in Radeon was busted some time
>ago, which meant that AGP had to be present.

To be clearer to the original person, PCI DRI support didn't work
except on Alpha architecture.  Radeon hardware worked fine in 2D
only with DRI disabled though, on both AGP and PCI cards.

>> I have an nvidia NFORCE1-based motherboard.
>> Agpgart module does not support my north bridge: does this mean that I 
>> can't accelerate any AGP card (radeon 7200 for example)?
>
>That's a difficult question. I don't know whether the Radeon hardware
>allows to be run in PCI mode.

All Radeon hardware should work fine in PCI mode.  Wether or not 
XFree86/DRI drivers are up to scratch on a given XFree86 release 
or not is another question though.  It is much better nowadays 
than in the past though.

>The issue is that the Radeon driver for PCI cards relies on the
>existence of a PCI-GART (it does the same as the AGP GART, but
>in the PCI bus) which I don't know if it's present on AGP cards.

It is, and should work on AGP cards just like a PCI card, with 
"ForcePCIMode".


-- 
Mike A. Harris




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