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drm/i915: Don't set persistent FBC mode on ILK/SNB
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Thu, 23 Jan 2014 14:49:09 +0000 (16:49 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Sat, 25 Jan 2014 20:17:01 +0000 (21:17 +0100)
commit630ac4e79b94ad8d43932de1b29ca97ab5c1db7c
tree8dd161584492a4c9626475b463546a22be50b9c1tree | snapshot
parenteb93514960b79570ad3f86903e27ca138dd469c7commit | diff
drm/i915: Don't set persistent FBC mode on ILK/SNB

The ILK/SNB docs are a bit unclear what the persistent mode does, but
the CTG docs clearly state that it was meant to be used when we're
tracking back buffer modifications. We never do that, so leave it in
non-persistent mode.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_pm.c diff | blob | history
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