linux.git/drivers/gpu, branch v5.1-rc2

Merge branch 'drm-fixes-5.1' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

2019-03-22T02:08:44+00:00

- Parially revert a bulk move clean up change to fix a ref count bug
- Fix invalid use of change_bit that caused a crash on PPC64 and ARM64

Signed-off-by: Dave Airlie 
From: Alex Deucher 
Link: https://patchwork.freedesktop.org/patch/msgid/20190321020933.3508-1-alexander.deucher@amd.com

Merge branch 'vmwgfx-fixes-5.1' of git://people.freedesktop.org/~thomash/linux into drm-fixes

2019-03-22T01:53:36+00:00

Two fixes CC'd stable. One fix for a long-standing a bit hard-to-trigger fbdev
modesetting bug and one out-of-bo-id fix.

Signed-off-by: Dave Airlie 
From: Thomas Hellstrom 
Link: https://patchwork.freedesktop.org/patch/msgid/20190321112026.114328-1-thellstrom@vmware.com

Merge tag 'exynos-drm-fixes-for-5.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes

2019-03-22T01:52:44+00:00

- Fix page fault issue at Mixer device
  . This patch fixes the page fault issue by correcting sychronization
    method for updating shadow registers for Mixer device.

Signed-off-by: Dave Airlie 

From: Inki Dae 
Link: https://patchwork.freedesktop.org/patch/msgid/1553162223-10090-1-git-send-email-inki.dae@samsung.com

Merge tag 'drm-intel-fixes-2019-03-20' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

2019-03-22T00:52:27+00:00

A protection on our mmap against attempts to map past the end of the object;
plus a fix off-by-one in our hang report and a protection;
and a fix for eDP panels on Gen9 platforms on VBT absence.

Signed-off-by: Dave Airlie 

From: Rodrigo Vivi 
Link: https://patchwork.freedesktop.org/patch/msgid/20190320201451.GA7993@intel.com

Merge branch 'linux-5.1' of git://github.com/skeggsb/linux into drm-fixes

2019-03-22T00:39:35+00:00

Some minor nouveau dmem and other fixes.

Signed-off-by: Dave Airlie 
From: Ben Skeggs 
Link: https://patchwork.freedesktop.org/patch/msgid/CABDvA==kMkD6n-cS9KpQBcTU1E8p7Wc+H1ZuOhSfD7yTFJVvkw@mail.gmail.com

drm/nouveau/dmem: empty chunk do not have a buffer object associated with them.

2019-03-21T23:58:38+00:00

Empty chunk do not have a bo associated with them so no need to pin/unpin
on suspend/resume.

This fix suspend/resume on 5.1rc1 when NOUVEAU_SVM is enabled.

Signed-off-by: Jérôme Glisse 
Reviewed-by: Tobias Klausmann 
Tested-by: Tobias Klausmann 
Cc: Ben Skeggs 
Cc: dri-devel@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: David Airlie 
Cc: Daniel Vetter 
Signed-off-by: Ben Skeggs

drm/nouveau/debugfs: Fix check of pm_runtime_get_sync failure

2019-03-21T23:57:58+00:00

pm_runtime_get_sync returns negative on failure.

Fixes: eaeb9010bb4b ("drm/nouveau/debugfs: Wake up GPU before doing any reclocking")
Signed-off-by: YueHaibing 
Signed-off-by: Ben Skeggs

drm/nouveau/dmem: Fix a NULL vs IS_ERR() check

2019-03-21T23:57:58+00:00

The hmm_devmem_add() function doesn't return NULL, it returns error
pointers.

Fixes: 5be73b690875 ("drm/nouveau/dmem: device memory helpers for SVM")
Signed-off-by: Dan Carpenter 
Signed-off-by: Ben Skeggs

drm/nouveau/dmem: remove set but not used variable 'drm'

2019-03-21T23:57:58+00:00

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/nouveau/nouveau_dmem.c: In function 'nouveau_dmem_free':
drivers/gpu/drm/nouveau/nouveau_dmem.c:103:22: warning:
 variable 'drm' set but not used [-Wunused-but-set-variable]
  struct nouveau_drm *drm;
                      ^

Signed-off-by: YueHaibing 
Signed-off-by: Ben Skeggs

drm/exynos/mixer: fix MIXER shadow registry synchronisation code

2019-03-21T00:47:29+00:00

MIXER on Exynos5 SoCs uses different synchronisation method than Exynos4
to update internal state (shadow registers).
Apparently the driver implements it incorrectly. The rule should be
as follows:
- do not request updating registers until previous request was finished,
  ie. MXR_CFG_LAYER_UPDATE_COUNT must be 0.
- before setting registers synchronisation on VSYNC should be turned off,
  ie. MXR_STATUS_SYNC_ENABLE should be reset,
- after finishing MXR_STATUS_SYNC_ENABLE should be set again.
The patch hopefully implements it correctly.
Below sample kernel log from page fault caused by the bug:

[   25.670038] exynos-sysmmu 14650000.sysmmu: 14450000.mixer: PAGE FAULT occurred at 0x2247b800
[   25.677888] ------------[ cut here ]------------
[   25.682164] kernel BUG at ../drivers/iommu/exynos-iommu.c:450!
[   25.687971] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
[   25.693778] Modules linked in:
[   25.696816] CPU: 5 PID: 1553 Comm: fb-release_test Not tainted 5.0.0-rc7-01157-g5f86b1566bdd #136
[   25.705646] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[   25.711710] PC is at exynos_sysmmu_irq+0x1c0/0x264
[   25.716470] LR is at lock_is_held_type+0x44/0x64

v2: added missing MXR_CFG_LAYER_UPDATE bit setting in mixer_enable_sync

Reported-by: Marian Mihailescu 
Signed-off-by: Andrzej Hajda 
Signed-off-by: Inki Dae