drm/i915: Require fence only for FBC capable planes
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Wed, 21 Feb 2018 16:02:33 +0000 (18:02 +0200)
committerVille Syrjälä <ville.syrjala@linux.intel.com>
Thu, 22 Feb 2018 16:11:05 +0000 (18:11 +0200)
commit32febd91951eb40d9e9437f10b967c87715d8ef5
tree8cc330af0f954d314a53adab8cacb53a21911b4f
parentcf1805e65802cf77243e2cdcf1b265240f70eda2
drm/i915: Require fence only for FBC capable planes

As only a subset of primary planes are FBC capable there's no need
to waste fences on all of them. So let's skip the fence if the plane
isn't even fbc capable.

In the future we might extend this to skip the fence even for FBC
capable planes if the crtc and/or plane state isn't suitable
for FBC.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180221160235.11134-5-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
drivers/gpu/drm/i915/intel_display.c