drm/i915: pin sprite fb only if it changed
authorGustavo Padovan <gustavo.padovan@collabora.co.uk>
Wed, 10 Sep 2014 15:03:17 +0000 (12:03 -0300)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Fri, 19 Sep 2014 12:43:08 +0000 (14:43 +0200)
commit25067bfc060d1a481584dcb51ef4b5680176ecb6
treef491c8534c37b09d1adddd269b27497ec4ae86da
parent94f598f176600a857817e010f266cdc30efa585b
drm/i915: pin sprite fb only if it changed

Optimize code avoiding helding dev mutex if old fb and current fb
are the same.

v2: take Ville's comments
- move comment along with the pin_and_fence call
- check for error before calling i915_gem_track_fb
- move old_obj != obj to an upper if condition

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_sprite.c