[PATCH 0/1][-next] drm/radeon: Move over to the ttm execbuf utilities

[Thomas Hellstrom]

The patch is compile-tested ony and not very intrusive. It should be applied
on top of the latest TTM patches.

Besides reduced CPU-usage on SMP kernels, there is the benefit of using
shared code. Will also ease implementation of concurrent CS due to the
deadlock prevention mechanisms.

If time allows, I'll write a patch to do the same on Novueau, although
Novueau does things a little differently than the other TTM-aware drivers.