[Intel-gfx] [PATCH v2] drm/i915/vlv: Update Wait for FIFO and wait for 20 free entries. v2

[Chris Wilson]

On Fri, Nov 29, 2013 at 11:22:32AM +0000, S, Deepak wrote:
> Hi Chris,
> 
> In VLV, both hardware and software can use the write fifo in parallel, we are adding this change as a water mark to make sure we atleast have 20 free entries .This will help us to avoid software mmio write being dropped. 

Please think some more and describe the change exactly.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre