Patch "drm/i915: Disable decoupled MMIO" has been added to the 4.11-stable tree

Patch "drm/i915: Disable decoupled MMIO" has been added to the 4.11-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    drm/i915: Disable decoupled MMIO

to the 4.11-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-i915-disable-decoupled-mmio.patch
and it can be found in the queue-4.11 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 4c4c565513cca1c53a12956640b5915727431631 Mon Sep 17 00:00:00 2001
From: Kai Chen <kai.chen@intel.com>
Date: Tue, 23 May 2017 14:58:11 -0700
Subject: drm/i915: Disable decoupled MMIO

From: Kai Chen <kai.chen@intel.com>

commit 4c4c565513cca1c53a12956640b5915727431631 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: 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
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/i915/i915_pci.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -389,7 +389,6 @@ static const struct intel_device_info in
 	.has_hw_contexts = 1, \
 	.has_logical_ring_contexts = 1, \
 	.has_guc = 1, \
-	.has_decoupled_mmio = 1, \
 	.has_aliasing_ppgtt = 1, \
 	.has_full_ppgtt = 1, \
 	.has_full_48bit_ppgtt = 1, \


Patches currently in stable-queue which might be from kai.chen@intel.com are

queue-4.11/drm-i915-disable-decoupled-mmio.patch