From: Daniel Vetter Date: Wed, 18 Dec 2013 15:40:38 +0000 (+0100) Subject: Revert "drm/i915: Do not allow buffers at offset 0" X-Git-Tag: v3.15-rc1~51^2~62^2~80^2~8 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bfca05275a594920ad5111f5a23ec6fadc0d0780;p=pandora-kernel.git Revert "drm/i915: Do not allow buffers at offset 0" This reverts commit 4fe9adbc36097317864bfec3c32047da7c45a2fa. The patch completely lacks a detailed explanation of what exactly blows up and how, so is insufficiently justified as a band-aid. Otoh the justification as a safety measure against userspace botching up relocations is also fairly weak: If we want real project we need to at least make the gab big enough that the gpu doesn't scribble over more important stuff. With 4k screens that would be 32MB. Also I think this would be much better in conjunction with a (debug) switch to disable our use of the scratch page. Hence revert this. Signed-off-by: Daniel Vetter --- Reading git-diff-tree failed