drm/i915: Disable decoupled MMIO
authorKai Chen <kai.chen@intel.com>
Tue, 23 May 2017 21:58:11 +0000 (14:58 -0700)
committerJani Nikula <jani.nikula@intel.com>
Wed, 7 Jun 2017 13:30:49 +0000 (16:30 +0300)
commit4c4c565513cca1c53a12956640b5915727431631
tree821156f4e15927aebca9d8c888a6cb0779258634
parent4ca9a5821972b431cb94c6a1ac69a64aefe1c17d
drm/i915: Disable decoupled MMIO

The decoupled MMIO feature doesn't work as intended by HW team. Enabling
it with forcewake will only make debugging efforts more difficult, so
let's disable it.

Fixes: 85ee17ebeedd ("drm/i915/bxt: Broxton decoupled MMIO")
Cc: Zhe Wang <zhe1.wang@intel.com>
Cc: Praveen Paneri <praveen.paneri@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v4.10+
Signed-off-by: Kai Chen <kai.chen@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170523215812.18328-2-kai.chen@intel.com
(cherry picked from commit 0051c10acabb631cfd439eae73289e6e4c39b2b7)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
drivers/gpu/drm/i915/i915_pci.c