tree 0a7dd5febbe0904eed9424bc861c807dba76be95
parent 85ccc35b7e4a5e7894570fe9b4e4b56d82fc3181
author Chris Wilson <chris@chris-wilson.co.uk> 1287763361 +0100
committer Chris Wilson <chris@chris-wilson.co.uk> 1287766663 +0100

drm/i915/ringbuffer: Write the value passed in to the tail register

This should fix the error along the reset path were we tried to clear the
tail register by setting it to 0, but were in fact setting it to the
current value and complaining when it did not reset to 0.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>