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)
committerVarun Wadekar <vwadekar@nvidia.com>
Wed, 18 Apr 2012 13:04:20 +0000 (18:04 +0530)
commit9915924f224a2933fe00859aedbc435fd23847d5
tree0eabe825ed3b4a906c10549151fb97f50174e6fc
parent104fbb9da7470270ba5762411b03e5dc143ac886
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