On Tue, 2003-07-29 at 19:31, Ian Romanick wrote:
> Michel Dänzer wrote:
> > On Tue, 2003-07-29 at 09:06, Chris wrote:
> > 
> >>This works perfectly, only using the DRM and the GL driver, (and adding
> >>ForcePCIMode the the config), 
> > 
> > This will remain necessary until PCI GART is deemed stable with AGP
> > cards or there's a way to tell what kind of card it is.
> 
> Where would be the right place to do this?  In the kernel?  In the DDX 
> driver?  In the client-side DRI driver?  If it's in either of the first 
> two places, we *can* do it, it would be just a major PITA.  We can look 
> at the bus where the card is and work backwards up the tree.  If we hit 
> an AGP controller, the card must be AGP.

The DDX driver needs to know to decide whether to enable the DRI with
PCI GART or disable it, but the kernel might be in a better position to
find out (though some XFree86 hackers might disagree :)...


> With a lot of the cards you can tell just be looking at the device (or 
> subsystem) ID, but I don't think that's the case with the Radeons. 
> Don't they use the same PCI device ID for both AGP and PCI versions? 

They do for the chips, don't know about the subsystems. Hui?


-- 
Earthling Michel Dänzer   \  Debian (powerpc), XFree86 and DRI developer
Software libre enthusiast  \     http://svcs.affero.net/rm.php?r=daenzer



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