[Intel-gfx] [PATCH 6/9] drm/i915: add the FBC mutex

[Chris Wilson]

On Tue, Dec 23, 2014 at 10:35:42AM -0200, Paulo Zanoni wrote:
> From: Paulo Zanoni <paulo.r.zanoni at intel.com>
> 
> Make sure we're not gonna have weird races in really weird cases where
> a lot of different CRTCs are doing rendering and modesets at the same
> time.

You are not actually reducing the partial coverage from other locks,
particularly struct_mutex, so this doesn't look like the full improvement
it should be.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre