Merge branch 'linux-4.8' of git://github.com/skeggsb/linux into drm-fixes

nouveau: couple of fixes.

* 'linux-4.8' of git://github.com/skeggsb/linux:
  drm/nouveau: Revert "bus: remove cpu_coherent flag"
  drm/nouveau/fifo/nv04: avoid ramht race against cookie insertion