EXA patches

[Dave Airlie]

On Tue, 2009-08-04 at 09:49 +0800, Joel Feiner wrote:
> 2009/8/4 Michel Dänzer <michel at daenzer.net>
>         <snip>
>         
>         I wonder if maybe the slowdown I'm seeing is because the
>         radeon driver
>         is temporarily lacking UploadToScreen and DownloadFromScreen
>         hooks with
>         KMS, though I'm not sure what those would be used for with
>         text
>         rendering.
> 
> Off-topic, but if I may enquire out of intellectual curiosity: why
> doesn't the KMS version of Radeon have UTS and DFS acceleration?

The code is in the branch, but its really ugly, I was hoping to actual
do it cleaner which might involve a new kernel interface to ask for the 
current placement of a buffer object so we can decide whether to just
memcpy or we need to blit for DFS. I'm not sure I saw a good reason for
UTS, doing Host data blits isn't really useful with BOs at least with
the current code.

Dave.