From: Ben Widawsky <benjamin.widawsky@intel.com>
Date: Fri, 6 Dec 2013 22:11:24 +0000 (-0800)
Subject: drm/i915: Do not allow buffers at offset 0
X-Git-Tag: v3.15-rc1~51^2~62^2~80^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4fe9adbc36097317864bfec3c32047da7c45a2fa;p=pandora-kernel.git

drm/i915: Do not allow buffers at offset 0

This is primarily a band aid for an unexplainable error in
gem_reloc_vs_gpu/forked-faulting-reloc-thrashing. Essentially as soon as
a relocated buffer (which had a non-zero presumed offset) moved to
offset 0, something goes bad. Since I have been unable to solve this,
and potentially this is a good thing to do anyway, since many things can
accidentally write to offset 0, why not?

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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