drm/i915: disable ppgtt on snb when dmar is enabled
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Mon, 2 Apr 2012 08:08:35 +0000 (10:08 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Mon, 2 Apr 2012 13:59:07 +0000 (15:59 +0200)
commit650dc07ec3b0eba8ff21da706d2b1876ada59fc3
tree337809fc7c960a6c525f473d498c339aa7075ab3
parentcc22a938fc1db0c8ef5e693a69b159c4b851dab3
drm/i915: disable ppgtt on snb when dmar is enabled

Totally unexpected that this regressed. Luckily it sounds like we just
need to have dmar disable on the igfx, not the entire system. At least
that's what a few days of testing between Tony Vroon and me indicates.

Reported-by: Tony Vroon <tony@linx.net>
Cc: Tony Vroon <tony@linx.net>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43024
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/char/agp/intel-gtt.c
drivers/gpu/drm/i915/i915_dma.c
drivers/gpu/drm/i915/i915_drv.c
drivers/gpu/drm/i915/i915_drv.h
include/drm/intel-gtt.h