drm/i915: Reload PD tables after semaphore wait on gen8
authorChris Wilson <chris@chris-wilson.co.uk>
Fri, 29 Apr 2016 12:18:25 +0000 (13:18 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Fri, 29 Apr 2016 12:59:56 +0000 (13:59 +0100)
commit6ef48d7f0199a3cc30963f110ae581e4060f4e7d
tree5fb0aba2909aa0cfdfaa1b1cbded72df90d50f8e
parentf9a4ea35b87c28c08134dfc146345f77345a99be
drm/i915: Reload PD tables after semaphore wait on gen8

When the engine idles waiting upon a semaphore, it loses its
pagetables and we must reload them before executing the batch.

v2: Restrict w/a to non-RCS rings (RCS works correctly apparently).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1461932305-14637-5-git-send-email-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/intel_ringbuffer.c