From: Chris Wilson Date: Tue, 18 Mar 2014 12:50:50 +0000 (+0200) Subject: drm/i915: Disable stolen memory when DMAR is active X-Git-Tag: v3.14-rc8~6^2~1^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0f4706d2740f2a221cd502922b22e522009041d9;p=pandora-kernel.git drm/i915: Disable stolen memory when DMAR is active We have reports of heavy screen corruption if we try to use the stolen memory reserved by the BIOS whilst the DMA-Remapper is active. This quirk may be only specific to a few machines or BIOSes, but first lets apply the big hammer and always disable use of stolen memory when DMAR is active. v2 by Jani: Rebase on -fixes, only look at intel_iommu_gfx_mapped. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68535 Signed-off-by: Chris Wilson Reviewed-by: Daniel Vetter Cc: stable@vger.kernel.org Signed-off-by: Jani Nikula --- Reading git-diff-tree failed