On Tue, Oct 21, 2003 at 01:51:00PM -0400, Mike A. Harris wrote:
> But for a 2D only driver, DRI based 2D acceleration using DMA is 
> more likely to be wasted effort than anything useful IMHO.  
> That's probably why nobody has done it yet other than in the 
> Radeon driver where it has a real good use.

Well, it depends, modern cards might well not have other accel model
than DMA, as does the i810 if i understood well, but as does the Wildcat
VP from 3Dlabs too. Sure you could always not use the DMA engine and use
onboard memory as ring buffers, but this is less than optimal, unless
you have a system where neither agpgart nor pcigart works. But the DRI
doesn't support these cases anyway.

Friendly,

Sven Luther
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