From 6c5566a82c6fb1da9e13a294f23d4cd85a08cb30 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 6 Aug 2014 15:04:50 +0200
Subject: [PATCH] drm/i915: Allow i915_gem_setup_global_gtt to fail

We already needs this just as a safety check in case the preallocation
reservation dance fails. But we definitely need this to be able to
move tha aliasing ppgtt setup back out of the context code to this
place, where it belongs.

Reviewed-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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