Merge branch 'drm-next-3.8' of git://people.freedesktop.org/~agd5f/linux into drm-next

Alex writes:
"adds support for the
asynchronous DMA engines on r6xx-SI.  These engines are used
for ttm bo moves and VM page table updates currently.  They
could also be exposed via the CS ioctl for userspace use,
but I haven't had a chance to add proper CS checker patches
for them yet.  These patches have been tested extensively
internally for months, so they should be pretty solid."

* 'drm-next-3.8' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: use DMA engine for VM page table updates on SI
  drm/radeon: add dma engine support for vm pt updates on si (v2)
  drm/radeon: use DMA engine for VM page table updates on cayman/TN
  drm/radeon: add dma engine support for vm pt updates on ni (v5)
  drm/radeon: use async dma for ttm buffer moves on 6xx-SI
  drm/radeon/kms: add support for dma rings to radeon_test_moves()
  drm/radeon/kms: Add initial support for async DMA on SI
  drm/radeon/kms: Add initial support for async DMA on cayman/TN
  drm/radeon/kms: Add initial support for async DMA on evergreen
  drm/radeon/kms: Add initial support for async DMA on r6xx/r7xx