[git pull] drm vmwgfx and i915 fixes

Hey Linus, Last few patches to wrap up. Two i915 fixes that are on their way to stable, one vmware black screen bug, and one const patch that I was going to drop, but it was clearly a pretty safe one liner, if you want I can remove it. Dave. The following changes since commit

[git pull] drm vmwgfx and i915 fixes

Hey Linus, Last few patches to wrap up. Two i915 fixes that are on their way to stable, one vmware black screen bug, and one const patch that I was going to drop, but it was clearly a pretty safe one liner, if you want I can remove it. Dave. The following changes since commit