drm/i915/fbc: introduce struct intel_fbc_state_cache
authorPaulo Zanoni <paulo.r.zanoni@intel.com>
Tue, 19 Jan 2016 13:35:42 +0000 (11:35 -0200)
committerPaulo Zanoni <paulo.r.zanoni@intel.com>
Fri, 29 Jan 2016 20:11:09 +0000 (18:11 -0200)
commitaaf78d276ba00ad0ab9e51283b3e3e8db8433ead
tree8cd4a70cf00b6254a2f62d85246bf23be8bb9bf3
parentfcf38d134983c1dbc3f426f6e562d93514fde1f1
drm/i915/fbc: introduce struct intel_fbc_state_cache

Per the new atomic locking rules, we need to cache the CRTC, plane and
FB state structures we use so we can access them later without needing
more locks. So do this.

Notice that there are some pieces of the FBC code that look at things
that are only computed during the modeset, so we can't just can't
precompute whether FBC can be activated during the update_state_cache
stage. We may be able to do this later.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-10-git-send-email-paulo.r.zanoni@intel.com
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/intel_fbc.c