[Intel-gfx] [PATCH] drm/i915: Enable FBC on GEN7 by default

[Chris Wilson]

On Mon, Mar 24, 2014 at 06:21:22PM -0700, Ben Widawsky wrote:
> I am not clear why we've never enabled it by default for GEN7. Looking
> at the git hostiry, it seems Rodrigo disabled it by default, and it's
> never been turned on. Quite a few fixes have gone in over the past year,
> and I think many of us are running this successfully.
> 
> If there is some reason we know of why we don't enable this by default
> on GEN7, then please ignore the patch, and forgive my laziness.

Other than the major performance degredation due to our implementation,
and that there is a known deadlock (when unplugging/plugging in external
displays) due to the broken locking... It should not have been enabled.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre