Re: [Intel-gfx] [PATCH 2/3] drm/i915: Use RMW to update chicken bits in gen7_enable_fbc()

2014-03-21 Thread Ben Widawsky
On Wed, Mar 05, 2014 at 01:05:46PM +0200, ville.syrj...@linux.intel.com wrote: From: Ville Syrjälä ville.syrj...@linux.intel.com gen7_enable_fbc() may write to some registers which we've already touched, so use RMW so that we don't undo any previous updates. Also note that we implemnt

[Intel-gfx] [PATCH 2/3] drm/i915: Use RMW to update chicken bits in gen7_enable_fbc()

2014-03-05 Thread ville . syrjala
From: Ville Syrjälä ville.syrj...@linux.intel.com gen7_enable_fbc() may write to some registers which we've already touched, so use RMW so that we don't undo any previous updates. Also note that we implemnt WaFbcAsynchFlipDisableFbcQueue:bdw. Signed-off-by: Ville Syrjälä