Radeon KMS Gets Faster X-Video Support

[Melcar]

Performance seems to be much worse with r7xx class hardware:

http://global.phoronix-test-suite.com/?k=profile&u=melcar-22230-17424-20469

The movie playback tests aren't running on my setup for some reason, so I can't compare if Xv playback is any different between KMS and UMS; but I somehow doubt that it's any different though, at least not in a noticeable way.

[RealNC]

The point was not to make Xv be faster with KMS than UMS, but to rather improve the current KMS situation. UMS is still the only practical choice right now.

[smitty3268]

The patch says the reason it is needed is because uploading the screen into video memory isn't accelerated yet. It sounds like there's a lot of stuff that still needs to be done before KMS can be considered "done".