Commit 6a9a78ba authored by Kai Chen's avatar Kai Chen Committed by Greg Kroah-Hartman

drm/i915: Disable decoupled MMIO

commit 4c4c5655 upstream.

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: 85ee17eb ("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
Signed-off-by: default avatarKai Chen <kai.chen@intel.com>
Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170523215812.18328-2-kai.chen@intel.com
(cherry picked from commit 0051c10a)
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b094fd12
...@@ -389,7 +389,6 @@ static const struct intel_device_info intel_skylake_gt3_info = { ...@@ -389,7 +389,6 @@ static const struct intel_device_info intel_skylake_gt3_info = {
.has_hw_contexts = 1, \ .has_hw_contexts = 1, \
.has_logical_ring_contexts = 1, \ .has_logical_ring_contexts = 1, \
.has_guc = 1, \ .has_guc = 1, \
.has_decoupled_mmio = 1, \
.has_aliasing_ppgtt = 1, \ .has_aliasing_ppgtt = 1, \
.has_full_ppgtt = 1, \ .has_full_ppgtt = 1, \
.has_full_48bit_ppgtt = 1, \ .has_full_48bit_ppgtt = 1, \
......
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