Re: [Linux-fbdev-devel] Some questions

[Thomas W. <th...@wi...>]

Antonino Daplas wrote:
> The accel engine is probably not a problem if it uses mmio.  However,
> engines that use command buffers are more susceptible to this if the
> buffers can be dynamically allocated by the process.

OK, ack.

> 
> The i810 for instance uses ringbuffers.  It has to be dynamically
> allocated via agpgart.  Fortunately, the i810 can support 2 ringbuffers,
> so X can use one and fb the other, so there's no conflict. 
> 
> Then you also have DRI joining in the confusion :-)

Not in my case :) The SiS DRI stuff is made in a way to prevent problems 
of this kind. But I ack that it might be on others.

> The best solution, personally, is to have one module controlling chipset
> access -- DRM for 2D and 3D, and fb for video mode switching.

Well. I personally don't want every graphics application to depend on 
kernel modules.

Thomas

-- 
Thomas Winischhofer
Vienna/Austria
mailto:th...@wi...          *** http://www.winischhofer.net