tree 95a104d5d06d2996d254fb8f70663a1cb8665237
parent 054b9acde6f9b7bd5e1e9739777d1cddda048305
author Ville Syrjälä <ville.syrjala@linux.intel.com> 1488474891 +0200
committer Ville Syrjälä <ville.syrjala@linux.intel.com> 1488552609 +0200

drm/i915: Track visible planes in a bitmask

In a lot of place we wish to know which planes on the crtc are actually
visible, or how many of them there are. Let's start tracking that in a
bitmask in the crtc state.

We already track enabled planes (ie. ones with an fb and crtc specified by
the user) but that's not quite the same thing as enabled planes may
still end up being invisible due to clipping and whatnot.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170302171508.1666-2-ville.syrjala@linux.intel.com