tree 42ae164d23ecaa1cb78ad87ad9603e0bdd29740d
parent ed4c9c4acf948b42b138747fcb8843ecb1a24ce4
author Eric Anholt <eric@anholt.net> 1220312729 -0700
committer Dave Airlie <airlied@linux.ie> 1224277851 +1000

i915: Use struct_mutex to protect ring in GEM mode.

In the conversion for GEM, we had stopped using the hardware lock to protect
ring usage, since it was all internal to the DRM now.  However, some paths
weren't converted to using struct_mutex to prevent multiple threads from
concurrently working on the ring, in particular between the vblank swap handler
and ioctls.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>