linux-stable.git/drivers/gpu/drm, branch v3.18.27 Linux kernel stable tree drm/dp/mst: Calculate MST PBN with 31.32 fixed point 2016-02-15T20:42:41+00:00 Harry Wentland harry.wentland@amd.com 2016-01-22T22:07:26+00:00 ef1490f71c14368553365d15abcaefc84771c590 [ Upstream commit a9ebb3e46c7ef6112c0da466ef0954673ad36832 ] Our PBN value overflows the 20 bits integer part of the 20.12 fixed point. We need to use 31.32 fixed point to avoid this. This happens with display clocks larger than 293122 (at 24 bpp), which we see with the Sharp (and similar) 4k tiled displays. Signed-off-by: Harry Wentland <harry.wentland@amd.com> Cc: stable@vger.kernel.org Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> 
[ Upstream commit a9ebb3e46c7ef6112c0da466ef0954673ad36832 ]

Our PBN value overflows the 20 bits integer part of the 20.12
fixed point. We need to use 31.32 fixed point to avoid this.

This happens with display clocks larger than 293122 (at 24 bpp),
which we see with the Sharp (and similar) 4k tiled displays.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
drm: fix missing reference counting decrease 2016-02-15T20:42:40+00:00 Insu Yun wuninsu@gmail.com 2016-02-01T16:08:29+00:00 e80d0294cae198f168919466cac440af00cecf56 [ Upstream commit dabe19540af9e563d526113bb102e1b9b9fa73f9 ] In drm_dp_mst_allocate_vcpi, it returns true in two paths, but in one path, there is no reference couting decrease. Signed-off-by: Insu Yun <wuninsu@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> 
[ Upstream commit dabe19540af9e563d526113bb102e1b9b9fa73f9 ]

In drm_dp_mst_allocate_vcpi, it returns true in two paths,
but in one path, there is no reference couting decrease.

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
drm/radeon: mask out WC from BO on unsupported arches 2016-02-15T20:42:37+00:00 Oded Gabbay oded.gabbay@gmail.com 2016-01-30T05:59:33+00:00 d404c4e249efed53e802cc492a7d3fc4f98dfb9e [ Upstream commit c5244987394648913ae1a03879c58058a2fc2cee ] Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Sasha Levin <sasha.levin@oracle.com> 
[ Upstream commit c5244987394648913ae1a03879c58058a2fc2cee ]

Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
drm/radeon: Always disable RADEON_GEM_GTT_UC along with RADEON_GEM_GTT_WC 2016-02-15T20:42:37+00:00 Michel Dänzer michel.daenzer@amd.com 2015-11-05T08:25:27+00:00 691cba1cada5fdce6e0db8303c64d78acc0f2fef [ Upstream commit a28bbd5824d4a2af98de45b300ab8d8fb39739fc ] Write-combining is a CPU feature. From the GPU POV, these both simply mean no GPU<->CPU cache coherency. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> 
[ Upstream commit a28bbd5824d4a2af98de45b300ab8d8fb39739fc ]

Write-combining is a CPU feature. From the GPU POV, these both simply
mean no GPU<->CPU cache coherency.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
drm/i915/dp: fall back to 18 bpp when sink capability is unknown 2016-02-15T20:42:35+00:00 Jani Nikula jani.nikula@intel.com 2016-01-13T14:35:20+00:00 6b851b9d5140dd8ccc2cc802c263be507c129bca [ Upstream commit 5efd407674068dede403551bea3b0b134c32513a ] Per DP spec, the source device should fall back to 18 bpp, VESA range RGB when the sink capability is unknown. Fix the color depth clamping. 18 bpp color depth should ensure full color range in automatic mode. The clamping has been HDMI specific since its introduction in commit 996a2239f93b03c5972923f04b097f65565c5bed Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Fri Apr 19 11:24:34 2013 +0200 drm/i915: Disable high-bpc on pre-1.4 EDID screens Cc: stable@vger.kernel.org Reported-and-tested-by: Dihan Wickremasuriya <nayomal@gmail.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=105331 Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1452695720-7076-1-git-send-email-jani.nikula@intel.com (cherry picked from commit 013dd9e038723bbd2aa67be51847384b75be8253) Signed-off-by: Sasha Levin <sasha.levin@oracle.com> 
[ Upstream commit 5efd407674068dede403551bea3b0b134c32513a ]

Per DP spec, the source device should fall back to 18 bpp, VESA range
RGB when the sink capability is unknown. Fix the color depth
clamping. 18 bpp color depth should ensure full color range in automatic
mode.

The clamping has been HDMI specific since its introduction in

commit 996a2239f93b03c5972923f04b097f65565c5bed
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Fri Apr 19 11:24:34 2013 +0200

    drm/i915: Disable high-bpc on pre-1.4 EDID screens

Cc: stable@vger.kernel.org
Reported-and-tested-by: Dihan Wickremasuriya <nayomal@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=105331
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452695720-7076-1-git-send-email-jani.nikula@intel.com
(cherry picked from commit 013dd9e038723bbd2aa67be51847384b75be8253)
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
drm/vmwgfx: respect 'nomodeset' 2016-02-15T20:42:33+00:00 Rob Clark robdclark@gmail.com 2014-10-15T19:00:47+00:00 362f7aa7711bc38a3cb9f1c3bfe83fa41405bc9d [ Upstream commit 96c5d076f0a5e2023ecdb44d8261f87641ee71e0 ] Signed-off-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>. Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> 
[ Upstream commit 96c5d076f0a5e2023ecdb44d8261f87641ee71e0 ]

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>.
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
drm/nouveau/kms: take mode_config mutex in connector hotplug path 2016-02-10T03:56:35+00:00 Ben Skeggs bskeggs@redhat.com 2016-01-07T22:56:51+00:00 2812571970cd15e63378f79746a4ae6fa49ed279 [ Upstream commit 0a882cadbc63fd2da3994af7115b4ada2fcbd638 ] fdo#93634 Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Sasha Levin <sasha.levin@oracle.com> 
[ Upstream commit 0a882cadbc63fd2da3994af7115b4ada2fcbd638 ]

fdo#93634

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
drm/dp/mst: fix in RAD element access 2016-02-10T03:56:21+00:00 Mykola Lysenko Mykola.Lysenko@amd.com 2015-12-25T08:14:48+00:00 aefd4d23b58c5c30d84b1df15dff155520b6be4f [ Upstream commit 7a11a334aa6af4c65c6a0d81b60c97fc18673532 ] This is needed to receive correct port number from RAD, so MSTB could be found Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Mykola Lysenko <Mykola.Lysenko@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Sasha Levin <sasha.levin@oracle.com> 
[ Upstream commit 7a11a334aa6af4c65c6a0d81b60c97fc18673532 ]

This is needed to receive correct port
number from RAD, so MSTB could be found

Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Mykola Lysenko <Mykola.Lysenko@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
gpu: drm: drm_dp_mst_topology.c: Fix improper use of strncat 2016-02-10T03:56:20+00:00 Rickard Strandqvist rickard_strandqvist@spectrumdigital.se 2014-10-11T22:02:32+00:00 d42f4a5484eba5a6106771d7f6afe8bfe90ca779 [ Upstream commit d87af4d10558fedf636e3df1b10dd2954f9e2a78 ] Fixed wrong usage of strncat, switched to strlcpy. While sending the string size to function to reduce the potential for misuse in future. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> 
[ Upstream commit d87af4d10558fedf636e3df1b10dd2954f9e2a78 ]

Fixed wrong usage of strncat, switched to strlcpy.
While sending the string size to function to reduce
the potential for misuse in future.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
drm/dp/mst: fix in MSTB RAD initialization 2016-02-10T03:56:20+00:00 Mykola Lysenko Mykola.Lysenko@amd.com 2015-12-25T08:14:47+00:00 bc062e19a978e93b296f0b471314ed97735880fe [ Upstream commit 75af4c8c4c0f60d7ad135419805798f144e9baf9 ] This fix is needed to support more then two branch displays, so RAD address consist at least of 2 elements Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Mykola Lysenko <Mykola.Lysenko@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Sasha Levin <sasha.levin@oracle.com> 
[ Upstream commit 75af4c8c4c0f60d7ad135419805798f144e9baf9 ]

This fix is needed to support more then two
branch displays, so RAD address consist at
least of 2 elements

Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Mykola Lysenko <Mykola.Lysenko@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>