Commit Graph

651 Commits

Author SHA1 Message Date
Dave Airlie
633aa7e53a drm-misc-next for 5.5:
UAPI Changes:
 -dma-buf: Introduce and revert dma-buf heap (Andrew/John/Sean)
 
 Cross-subsystem Changes:
 - None
 
 Core Changes:
 -dma-buf: add dynamic mapping to allow exporters to choose dma_resv lock
 	  state on mmap/munmap (Christian)
 -vram: add prepare/cleanup fb helpers to vram helpers (Thomas)
 -ttm: always keep bo's on the lru + ttm cleanups (Christian)
 -sched: allow a free_job routine to sleep (Steven)
 -fb_helper: remove unused drm_fb_helper_defio_init() (Thomas)
 
 Driver Changes:
 -bochs/hibmc/vboxvideo: Use new vram helpers for prepare/cleanup fb (Thomas)
 -amdgpu: Implement dma-buf import/export without drm helpers (Christian)
 -panfrost: Simplify devfreq integration in driver (Steven)
 
 Cc: Christian König <christian.koenig@amd.com>
 Cc: Thomas Zimmermann <tzimmermann@suse.de>
 Cc: Steven Price <steven.price@arm.com>
 Cc: Andrew F. Davis <afd@ti.com>
 Cc: John Stultz <john.stultz@linaro.org>
 Cc: Sean Paul <seanpaul@chromium.org>
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Merge tag 'drm-misc-next-2019-10-31' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.5:

UAPI Changes:
-dma-buf: Introduce and revert dma-buf heap (Andrew/John/Sean)

Cross-subsystem Changes:
- None

Core Changes:
-dma-buf: add dynamic mapping to allow exporters to choose dma_resv lock
	  state on mmap/munmap (Christian)
-vram: add prepare/cleanup fb helpers to vram helpers (Thomas)
-ttm: always keep bo's on the lru + ttm cleanups (Christian)
-sched: allow a free_job routine to sleep (Steven)
-fb_helper: remove unused drm_fb_helper_defio_init() (Thomas)

Driver Changes:
-bochs/hibmc/vboxvideo: Use new vram helpers for prepare/cleanup fb (Thomas)
-amdgpu: Implement dma-buf import/export without drm helpers (Christian)
-panfrost: Simplify devfreq integration in driver (Steven)

Cc: Christian König <christian.koenig@amd.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Steven Price <steven.price@arm.com>
Cc: Andrew F. Davis <afd@ti.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20191031193015.GA243509@art_vandelay
2019-11-04 09:28:51 +10:00
Dave Airlie
a24e4b09dc drm-misc-next for 5.5:
UAPI Changes:
 -syncobj: allow querying the last submitted timeline value (David)
 -fourcc: explicitly defineDRM_FORMAT_BIG_ENDIAN as unsigned (Adam)
 -omap: revert the OMAP_BO_* flags that were added -- no userspace (Sean)
 
 Cross-subsystem Changes:
 -MAINTAINERS: add Mihail as komeda co-maintainer (Mihail)
 
 Core Changes:
 -edid: a few cleanups, add AVI infoframe bar info (Ville)
 -todo: remove i915 device_link item and add difficulty levels (Daniel)
 -dp_helpers: add a few new helpers to parse dpcd (Thierry)
 
 Driver Changes:
 -gma500: fix a few memory disclosure leaks (Kangjie)
 -qxl: convert to use the new drm_gem_object_funcs.mmap (Gerd)
 -various: open code dp_link helpers in preparation for helper removal (Thierry)
 
 Cc: Chunming Zhou <david1.zhou@amd.com>
 Cc: Adam Jackson <ajax@redhat.com>
 Cc: Sean Paul <seanpaul@chromium.org>
 Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
 Cc: Kangjie Lu <kjlu@umn.edu>
 Cc: Mihail Atanassov <mihail.atanassov@arm.com>
 Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
 Cc: Thierry Reding <treding@nvidia.com>
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Merge tag 'drm-misc-next-2019-10-24-2' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.5:

UAPI Changes:
-syncobj: allow querying the last submitted timeline value (David)
-fourcc: explicitly defineDRM_FORMAT_BIG_ENDIAN as unsigned (Adam)
-omap: revert the OMAP_BO_* flags that were added -- no userspace (Sean)

Cross-subsystem Changes:
-MAINTAINERS: add Mihail as komeda co-maintainer (Mihail)

Core Changes:
-edid: a few cleanups, add AVI infoframe bar info (Ville)
-todo: remove i915 device_link item and add difficulty levels (Daniel)
-dp_helpers: add a few new helpers to parse dpcd (Thierry)

Driver Changes:
-gma500: fix a few memory disclosure leaks (Kangjie)
-qxl: convert to use the new drm_gem_object_funcs.mmap (Gerd)
-various: open code dp_link helpers in preparation for helper removal (Thierry)

Cc: Chunming Zhou <david1.zhou@amd.com>
Cc: Adam Jackson <ajax@redhat.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Mihail Atanassov <mihail.atanassov@arm.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20191024155535.GA10294@art_vandelay
2019-10-30 06:11:47 +10:00
Rob Herring
83b8a6f242 drm/gem: Fix mmap fake offset handling for drm_gem_object_funcs.mmap
Commit c40069cb7b ("drm: add mmap() to drm_gem_object_funcs")
introduced a GEM object mmap() hook which is expected to subtract the
fake offset from vm_pgoff. However, for mmap() on dmabufs, there is not
a fake offset.

To fix this, let's always call mmap() object callback with an offset of 0,
and leave it up to drm_gem_mmap_obj() to remove the fake offset.

TTM still needs the fake offset, so we have to add it back until that's
fixed.

Fixes: c40069cb7b ("drm: add mmap() to drm_gem_object_funcs")
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191024191859.31700-1-robh@kernel.org
2019-10-29 13:29:21 -05:00
Dave Airlie
3275a71e76 Merge tag 'drm-next-5.5-2019-10-09' of git://people.freedesktop.org/~agd5f/linux into drm-next
drm-next-5.5-2019-10-09:

amdgpu:
- Additional RAS enablement for vega20
- RAS page retirement and bad page storage in EEPROM
- No GPU reset with unrecoverable RAS errors
- Reserve vram for page tables rather than trying to evict
- Fix issues with GPU reset and xgmi hives
- DC i2c over aux fixes
- Direct submission for clears, PTE/PDE updates
- Improvements to help support recoverable GPU page faults
- Silence harmless SAD block messages
- Clean up code for creating a bo at a fixed location
- Initial DC HDCP support
- Lots of documentation fixes
- GPU reset for renoir
- Add IH clockgating support for soc15 asics
- Powerplay improvements
- DC MST cleanups
- Add support for MSI-X
- Misc cleanups and bug fixes

amdkfd:
- Query KFD device info by asic type rather than pci ids
- Add navi14 support
- Add renoir support
- Add navi12 support
- gfx10 trap handler improvements
- pasid cleanups
- Check against device cgroup

ttm:
- Return -EBUSY with pipelining with no_gpu_wait

radeon:
- Silence harmless SAD block messages

device_cgroup:
- Export devcgroup_check_permission

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191010041713.3412-1-alexander.deucher@amd.com
2019-10-26 05:56:57 +10:00
Christian König
ea7d8c675e drm/ttm: stop exporting ttm_mem_io_* functions
Those are not supposed to be used by drivers.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/333290/
2019-10-25 11:40:51 +02:00
Christian König
ef38321897 drm/ttm: use the parent resv for ghost objects v3
This way the TTM is destroyed with the correct dma_resv object
locked and we can even pipeline imported BO evictions.

v2: Limit this to only cases when the parent object uses a separate
    reservation object as well. This fixes another OOM problem.
v3: fix init and try_lock on the wrong object

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Link: https://patchwork.freedesktop.org/patch/337499/
2019-10-25 11:40:51 +02:00
Christian König
97588b5b9a drm/ttm: remove pointers to globals
As the name says global memory and bo accounting is global. So it doesn't
make to much sense having pointers to global structures all around the code.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Thomas Hellström <thellstrom@vmware.com>
Link: https://patchwork.freedesktop.org/patch/332879/
2019-10-25 11:40:51 +02:00
Christian König
9165fb879f drm/ttm: always keep BOs on the LRU
This allows blocking for BOs to become available
in the memory management.

Amdgpu is doing this for quite a while now during CS. Now
apply the new behavior to all drivers using TTM.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Thomas Hellstrom <thellstrom@vmware.com>
Link: https://patchwork.freedesktop.org/patch/332878/
2019-10-25 11:40:50 +02:00
Christian König
7fb03cc3e0 drm/ttm, drm/vmwgfx: move cpu_writers handling into vmwgfx
This feature is only used by vmwgfx and superfluous for everybody else.

Signed-off-by: Christian König <christian.koenig@amd.com>
Co-developed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Tested-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/333650/
2019-10-25 11:40:28 +02:00
Sean Paul
44bf67f32a Merge drm/drm-next into drm-misc-next
Parroting Daniel's backmerge justification from
2e79e22e09:

Thierry needs fd70c7755b ("drm/bridge: tc358767: fix max_tu_symbol
value") to be able to merge his dp_link patch series.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
2019-10-23 11:14:11 -04:00
Daniel Vetter
2e79e22e09 Linux 5.4-rc4
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Merge v5.4-rc4 into drm-next

Thierry needs fd70c7755b ("drm/bridge: tc358767: fix max_tu_symbol
value") to be able to merge his dp_link patch series.

Some adjacent changes conflicts, plus some clashes in i915 due to
cherry-picking and git trying to be helpful and leaving both versions
in.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2019-10-23 12:10:05 +02:00
Gerd Hoffmann
12067e0e89 drm/ttm: rename ttm_fbdev_mmap
Rename ttm_fbdev_mmap to ttm_bo_mmap_obj.  Move the vm_pgoff sanity
check to amdgpu_bo_fbdev_mmap (only ttm_fbdev_mmap user in tree).

The ttm_bo_mmap_obj function can now be used to map any buffer object.
This allows to implement &drm_gem_object_funcs.mmap in gem ttm helpers.

v3: patch added to series

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20191016115203.20095-8-kraxel@redhat.com
2019-10-17 13:59:16 +02:00
Gerd Hoffmann
24e25ea6d7 drm/ttm: factor out ttm_bo_mmap_vma_setup
Factor out ttm vma setup to a new function.
Reduces code duplication a bit.

v2: don't change vm_flags (moved to separate patch).
v4: make ttm_bo_mmap_vma_setup static.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20191016115203.20095-7-kraxel@redhat.com
2019-10-17 13:59:16 +02:00
Christian König
7fbc899dde drm/ttm: fix handling in ttm_bo_add_mem_to_lru
We should not add the BO to the swap LRU when the new mem is fixed and
the TTM object about to be destroyed.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Link: https://patchwork.freedesktop.org/patch/335246/
2019-10-14 13:21:15 +02:00
Thomas Hellstrom
941f2f72db drm/ttm: Restore ttm prefaulting
Commit 4daa4fba3a ("gpu: drm: ttm: Adding new return type vm_fault_t")
broke TTM prefaulting. Since vmf_insert_mixed() typically always returns
VM_FAULT_NOPAGE, prefaulting stops after the second PTE.

Restore (almost) the original behaviour. Unfortunately we can no longer
with the new vm_fault_t return type determine whether a prefaulting
PTE insertion hit an already populated PTE, and terminate the insertion
loop. Instead we continue with the pre-determined number of prefaults.

Fixes: 4daa4fba3a ("gpu: drm: ttm: Adding new return type vm_fault_t")
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/330387/
2019-10-14 12:49:24 +02:00
Christian König
73a88e4ce3 drm/ttm: fix busy reference in ttm_mem_evict_first
The busy BO might actually be already deleted,
so grab only a list reference.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Thomas Hellström <thellstrom@vmware.com>
Link: https://patchwork.freedesktop.org/patch/332877/
2019-10-14 12:48:59 +02:00
Maxime Ripard
4092de1ba3
Merge drm/drm-next into drm-misc-next
We haven't done any backmerge for a while due to the merge window, and it
starts to become an issue for komeda. Let's bring 5.4-rc1 in.

Signed-off-by: Maxime Ripard <mripard@kernel.org>
2019-10-03 16:38:50 +02:00
Christian König
3084cf46cf drm/ttm: return -EBUSY on pipelining with no_gpu_wait (v2)
Setting the no_gpu_wait flag means that the allocate BO must be available
immediately and we can't wait for any GPU operation to finish.

v2: squash in mem leak fix, rebase

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-16 10:42:32 -05:00
Gerd Hoffmann
07583467c2 drm/ttm: remove embedded vma_offset_manager
No users left.  Drivers either setup vma_offset_manager themself
(vmwgfx) or pass the gem vma_offset_manager to ttm_bo_device_init
(all other drivers).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190905070509.22407-9-kraxel@redhat.com
2019-09-11 08:03:25 +02:00
Gerd Hoffmann
9d6f4484e8 drm/ttm: turn ttm_bo_device.vma_manager into a pointer
Rename the embedded struct vma_offset_manager, new name is _vma_manager.
ttm_bo_device.vma_manager changed to a pointer.

The ttm_bo_device_init() function gets an additional vma_manager
argument which allows to initialize ttm with a different vma manager.
When passing NULL the embedded _vma_manager is used.

All callers are updated to pass NULL, so the behavior doesn't change.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190905070509.22407-2-kraxel@redhat.com
2019-09-11 08:03:23 +02:00
Dave Airlie
5f680625d9 drm-misc-next for 5.4:
UAPI Changes:
 
 Cross-subsystem Changes:
 
 Core Changes:
   - dma-buf: add reservation_object_fences helper, relax
              reservation_object_add_shared_fence, remove
              reservation_object seq number (and then
              restored)
   - dma-fence: Shrinkage of the dma_fence structure,
                Merge dma_fence_signal and dma_fence_signal_locked,
                Store the timestamp in struct dma_fence in a union with
                cb_list
 
 Driver Changes:
   - More dt-bindings YAML conversions
   - More removal of drmP.h includes
   - dw-hdmi: Support get_eld and various i2s improvements
   - gm12u320: Few fixes
   - meson: Global cleanup
   - panfrost: Few refactors, Support for GPU heap allocations
   - sun4i: Support for DDC enable GPIO
   - New panels: TI nspire, NEC NL8048HL11, LG Philips LB035Q02,
                 Sharp LS037V7DW01, Sony ACX565AKM, Toppoly TD028TTEC1
                 Toppoly TD043MTEA1
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Merge tag 'drm-misc-next-2019-08-19' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.4:

UAPI Changes:

Cross-subsystem Changes:

Core Changes:
  - dma-buf: add reservation_object_fences helper, relax
             reservation_object_add_shared_fence, remove
             reservation_object seq number (and then
             restored)
  - dma-fence: Shrinkage of the dma_fence structure,
               Merge dma_fence_signal and dma_fence_signal_locked,
               Store the timestamp in struct dma_fence in a union with
               cb_list

Driver Changes:
  - More dt-bindings YAML conversions
  - More removal of drmP.h includes
  - dw-hdmi: Support get_eld and various i2s improvements
  - gm12u320: Few fixes
  - meson: Global cleanup
  - panfrost: Few refactors, Support for GPU heap allocations
  - sun4i: Support for DDC enable GPIO
  - New panels: TI nspire, NEC NL8048HL11, LG Philips LB035Q02,
                Sharp LS037V7DW01, Sony ACX565AKM, Toppoly TD028TTEC1
                Toppoly TD043MTEA1

Signed-off-by: Dave Airlie <airlied@redhat.com>
[airlied: fixup dma_resv rename fallout]

From: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190819141923.7l2adietcr2pioct@flea
2019-08-21 16:44:41 +10:00
Christian König
52791eeec1 dma-buf: rename reservation_object to dma_resv
Be more consistent with the naming of the other DMA-buf objects.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/323401/
2019-08-13 09:09:30 +02:00
Dave Airlie
e7f7287bf5 Merge tag 'drm-next-5.4-2019-08-09' of git://people.freedesktop.org/~agd5f/linux into drm-next
drm-next-5.4-2019-08-09:

Same as drm-next-5.4-2019-08-06, but with the
readq/writeq stuff fixed and 5.3-rc3 backmerged.

amdgpu:
- Add navi14 support
- Add navi12 support
- Add Arcturus support
- Enable mclk DPM for Navi
- Misc DC display fixes
- Add perfmon support for DF
- Add scatter/gather display support for Raven
- Improve SMU handling for GPU reset
- RAS support for GFX
- Drop last of drmP.h
- Add support for wiping memory on buffer release
- Allow cursor async updates for fb swaps
- Misc fixes and cleanups

amdkfd:
- Add navi14 support
- Add navi12 support
- Add Arcturus support
- CWSR trap handlers updates for gfx9, 10
- Drop last of drmP.h
- Update MAINTAINERS

radeon:
- Misc fixes and cleanups
- Make kexec more reliable by tearing down the GPU

ttm:
- Add release_notify callback

uapi:
- Add wipe memory on release flag for buffer creation

Signed-off-by: Dave Airlie <airlied@redhat.com>
[airlied: resolved conflicts with ttm resv moving]
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190809184807.3381-1-alexander.deucher@amd.com
2019-08-12 14:20:21 +10:00
Alex Deucher
3f61fd41f3 Linux 5.3-rc3
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Merge tag 'v5.3-rc3' into drm-next-5.4

Linux 5.3-rc3

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-08-09 13:07:28 -05:00
Dave Airlie
b0383c0653 drm-misc-next for 5.4:
UAPI Changes:
  - HDCP: Add a Content protection type property
 
 Cross-subsystem Changes:
 
 Core Changes:
  - Continue to rework the include dependencies
  - fb: Remove the unused drm_gem_fbdev_fb_create function
  - drm-dp-helper: Make the link rate calculation more tolerant to
                   non-explicitly defined, yet supported, rates
  - fb-helper: Map DRM client buffer only when required, and instanciate a
               shadow buffer when the device has a dirty function or says so
  - connector: Add a helper to link the DDC adapter used by that connector to
               the userspace
  - vblank: Switch from DRM_WAIT_ON to wait_event_interruptible_timeout
  - dma-buf: Fix a stack corruption
  - ttm: Embed a drm_gem_object struct to make ttm_buffer_object a
         superclass of GEM, and convert drivers to use it.
  - hdcp: Improvements to report the content protection type to the
          userspace
 
 Driver Changes:
  - Remove drm_gem_prime_import/export from being defined in the drivers
  - Drop DRM_AUTH usage from drivers
  - Continue to drop drmP.h
  - Convert drivers to the connector ddc helper
 
  - ingenic: Add support for more panel-related cases
  - komeda: Support for dual-link
  - lima: Reduce logging
  - mpag200: Fix the cursor support
  - panfrost: Export GPU features register to userspace through an ioctl
  - pl111: Remove the CLD pads wiring support from the DT
  - rockchip: Rework to use DRM PSR helpers, fix a bug in the VOP_WIN_GET
              macro
  - sun4i: Improve support for color encoding and range
  - tinydrm: Rework SPI support, improve MIPI-DBI support, move to drm/tiny
  - vkms: Rework of the CRC tracking
 
  - bridges:
    - sii902x: Add support for audio graph card
    - tc358767: Rework AUX data handling code
    - ti-sn65dsi86: Add Debugfs and proper DSI mode flags support
 
  - panels
    - Support for GiantPlus GPM940B0, Sharp LQ070Y3DG3B, Ortustech
      COM37H3M, Novatek NT39016, Sharp LS020B1DD01D, Raydium RM67191,
      Boe Himax8279d, Sharp LD-D5116Z01B
    - Conversion of the device tree bindings to the YAML description
    - jh057n00900: Rework the enable / disable path
 
  - fbdev:
    - ssd1307fb: Support more devices based on that controller
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Merge tag 'drm-misc-next-2019-08-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 5.4:

UAPI Changes:
 - HDCP: Add a Content protection type property

Cross-subsystem Changes:

Core Changes:
 - Continue to rework the include dependencies
 - fb: Remove the unused drm_gem_fbdev_fb_create function
 - drm-dp-helper: Make the link rate calculation more tolerant to
                  non-explicitly defined, yet supported, rates
 - fb-helper: Map DRM client buffer only when required, and instanciate a
              shadow buffer when the device has a dirty function or says so
 - connector: Add a helper to link the DDC adapter used by that connector to
              the userspace
 - vblank: Switch from DRM_WAIT_ON to wait_event_interruptible_timeout
 - dma-buf: Fix a stack corruption
 - ttm: Embed a drm_gem_object struct to make ttm_buffer_object a
        superclass of GEM, and convert drivers to use it.
 - hdcp: Improvements to report the content protection type to the
         userspace

Driver Changes:
 - Remove drm_gem_prime_import/export from being defined in the drivers
 - Drop DRM_AUTH usage from drivers
 - Continue to drop drmP.h
 - Convert drivers to the connector ddc helper

 - ingenic: Add support for more panel-related cases
 - komeda: Support for dual-link
 - lima: Reduce logging
 - mpag200: Fix the cursor support
 - panfrost: Export GPU features register to userspace through an ioctl
 - pl111: Remove the CLD pads wiring support from the DT
 - rockchip: Rework to use DRM PSR helpers, fix a bug in the VOP_WIN_GET
             macro
 - sun4i: Improve support for color encoding and range
 - tinydrm: Rework SPI support, improve MIPI-DBI support, move to drm/tiny
 - vkms: Rework of the CRC tracking

 - bridges:
   - sii902x: Add support for audio graph card
   - tc358767: Rework AUX data handling code
   - ti-sn65dsi86: Add Debugfs and proper DSI mode flags support

 - panels
   - Support for GiantPlus GPM940B0, Sharp LQ070Y3DG3B, Ortustech
     COM37H3M, Novatek NT39016, Sharp LS020B1DD01D, Raydium RM67191,
     Boe Himax8279d, Sharp LD-D5116Z01B
   - Conversion of the device tree bindings to the YAML description
   - jh057n00900: Rework the enable / disable path

 - fbdev:
   - ssd1307fb: Support more devices based on that controller

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190808121423.xzpedzkpyecvsiy4@flea
2019-08-09 16:04:31 +10:00
Gerd Hoffmann
e7f0141a21 drm/ttm: drop ttm_buffer_object->resv
All users moved to ttm_buffer_object->base.resv

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190805140119.7337-18-kraxel@redhat.com
2019-08-06 08:21:54 +02:00
Gerd Hoffmann
e532a135d7 drm/ttm: switch ttm core from bo->resv to bo->base.resv
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190805140119.7337-11-kraxel@redhat.com
2019-08-06 08:21:54 +02:00
Gerd Hoffmann
2e3c9ec4d1 drm/ttm: set both resv and base.resv pointers
Initialize both ttm_buffer_object->resv and ttm_buffer_object->base.resv
pointers.  This allows to move users from the former to the latter.  When
all users are moved we can drop ttm_buffer_object->resv.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190805140119.7337-10-kraxel@redhat.com
2019-08-06 08:21:54 +02:00
Gerd Hoffmann
b96f3e7c80 drm/ttm: use gem vma_node
Drop vma_node from ttm_buffer_object, use the gem struct
(base.vma_node) instead.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190805140119.7337-9-kraxel@redhat.com
2019-08-06 08:21:54 +02:00
Gerd Hoffmann
1e053b10ba drm/ttm: use gem reservation object
Drop ttm_resv from ttm_buffer_object, use the gem reservation object
(base._resv) instead.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190805140119.7337-8-kraxel@redhat.com
2019-08-06 08:21:54 +02:00
Christian König
0dbd555a01 dma-buf: add more reservation object locking wrappers
Complete the abstraction of the ww_mutex inside the reservation object.

This allows us to add more handling and debugging to the reservation
object in the future.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/320761/
2019-08-05 09:28:43 +02:00
Felix Kuehling
274840e544 drm/ttm: Add release_notify callback to ttm_bo_driver
This notifies the driver that a BO is about to be released.

Releasing a BO also invokes the move_notify callback from
ttm_bo_cleanup_memtype_use, but that happens too late for anything
that would add fences to the BO and require a delayed delete.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-08-02 10:18:04 -05:00
Dave Airlie
4d5308e785 Merge tag 'drm-fixes-5.3-2019-07-24' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
drm-fixes-5.3-2019-07-24:

amdgpu:
- RAS fixes for vega20
- Navi VCN fix
- DC audio fixes
- DC DSC fixes
- DC dongle fixes
- DC clk mgr fixes
- Fix DDC lines on some RV2 boards
- GDS fixes for compute
- Navi SMU fixes

ttm:
- Use the same attributes when freeing d_page->vaddr

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190724210527.3415-1-alexander.deucher@amd.com
2019-07-26 14:10:26 +10:00
Fuqian Huang
b64d98656f drm/ttm: use the same attributes when freeing d_page->vaddr
In function __ttm_dma_alloc_page(), d_page->addr is allocated
by dma_alloc_attrs() but freed with use dma_free_coherent() in
__ttm_dma_free_page().
Use the correct dma_free_attrs() to free d_page->vaddr.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:18:07 -05:00
Fuqian Huang
3457b3055e drm/ttm: use the same attributes when freeing d_page->vaddr
In function __ttm_dma_alloc_page(), d_page->addr is allocated
by dma_alloc_attrs() but freed with use dma_free_coherent() in
__ttm_dma_free_page().
Use the correct dma_free_attrs() to free d_page->vaddr.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:17:18 -05:00
Dave Airlie
3729fe2bc2 Revert "Merge branch 'vmwgfx-next' of git://people.freedesktop.org/~thomash/linux into drm-next"
This reverts commit 031e610a6a, reversing
changes made to 52d2d44eee.

The mm changes in there we premature and not fully ack or reviewed by core mm folks,
I dropped the ball by merging them via this tree, so lets take em all back out.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2019-07-16 04:07:13 +10:00
Felix Kuehling
f631959653 drm/ttm: return -EBUSY if waiting for busy BO fails
Returning -EAGAIN prevents ttm_bo_mem_space from trying alternate
placements and can lead to live-locks in amdgpu_cs, retrying
indefinitely and never succeeding.

Fixes: d367bd2a5e ("drm/ttm: fix busy memory to fail other user v10")
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-06-27 11:19:36 -05:00
Dave Airlie
39a207d0cf drm-misc-next for v5.3:
UAPI Changes:
 - Give each dma-buf their own inode, add DMA_BUF_SET_NAME ioctl and a show_fdinfo handler.
 
 Cross-subsystem Changes:
 - Pull in the topic/remove-fbcon-notifiers branch:
   * remove fbdev notifier usage for fbcon, as prep work to clean up the fbcon locking
   * assorted locking checks in vt/console code
   * assorted notifier and cleanups in fbdev and backlight code
 
 Core Changes:
 - Make drm_debugfs_create_files() never fail.
 - add debug print to update_vblank_count.
 - Add DP_DPCD_QUIRK_NO_SINK_COUNT quirk.
 - Add todo item for drm_gem_objects.
 - Unexport drm_gem_(un)pin/v(un)map.
 - Document struct drm_cmdline_mode.
 - Rewrite the command handler for mode names, and add support to specify
   rotation, reflection and overscan. With a new selftest! :)
 - Fixes to drm/client for improving rotation support, and fixing variable scope.
 - Small fixes to self refresh helper.
 
 Driver Changes:
 - Add rockchip RK3328 support.
 - Assorted driver fixes to rockchip, vc4, rcar-du, vkms.
 - Expose panfrost performance counters through unstable ioctl's, hidden
   behind a module parameter.
 - Enumerate CRC sources list in vkms.
 - Add a basic kms driver for the Ingenic JZ47xx SoC, which will be expanded
   soon with more advanced features.
 - Suspend/resume fix for stm.
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Merge tag 'drm-misc-next-2019-06-20' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v5.3:

UAPI Changes:
- Give each dma-buf their own inode, add DMA_BUF_SET_NAME ioctl and a show_fdinfo handler.

Cross-subsystem Changes:
- Pull in the topic/remove-fbcon-notifiers branch:
  * remove fbdev notifier usage for fbcon, as prep work to clean up the fbcon locking
  * assorted locking checks in vt/console code
  * assorted notifier and cleanups in fbdev and backlight code

Core Changes:
- Make drm_debugfs_create_files() never fail.
- add debug print to update_vblank_count.
- Add DP_DPCD_QUIRK_NO_SINK_COUNT quirk.
- Add todo item for drm_gem_objects.
- Unexport drm_gem_(un)pin/v(un)map.
- Document struct drm_cmdline_mode.
- Rewrite the command handler for mode names, and add support to specify
  rotation, reflection and overscan. With a new selftest! :)
- Fixes to drm/client for improving rotation support, and fixing variable scope.
- Small fixes to self refresh helper.

Driver Changes:
- Add rockchip RK3328 support.
- Assorted driver fixes to rockchip, vc4, rcar-du, vkms.
- Expose panfrost performance counters through unstable ioctl's, hidden
  behind a module parameter.
- Enumerate CRC sources list in vkms.
- Add a basic kms driver for the Ingenic JZ47xx SoC, which will be expanded
  soon with more advanced features.
- Suspend/resume fix for stm.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/18e22ec1-adf3-3a75-34a3-9fe09a91eef5@linux.intel.com
2019-06-21 13:54:59 +10:00
Serge Semin
8a08e50cee drm: Permit video-buffers writecombine mapping for MIPS
Since commit 4b050ba7a6 ("MIPS: pgtable.h: Implement the
pgprot_writecombine function for MIPS") and commit c4687b15a8 ("MIPS: Fix
definition of pgprot_writecombine()") write-combine vma mapping is
available to be used by kernel subsystems for MIPS. In particular the
uncached accelerated attribute is requested to be set by ioremap_wc()
method and by generic PCI memory pages/ranges mapping methods. The same
is done by the drm_io_prot()/ttm_io_prot() functions in case if
write-combine flag is set for vma's passed for mapping. But for some
reason the pgprot_writecombine() method calling is ifdefed to be a
platform-specific with MIPS system being marked as lacking of one. At the
very least it doesn't reflect the current MIPS platform implementation.
So in order to improve the DRM subsystem performance on MIPS with UCA
mapping enabled, we need to have pgprot_writecombine() called for buffers,
which need store operations being combined. In case if particular MIPS
chip doesn't support the UCA attribute, the mapping will fall back to
noncached.

Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Vadim V. Vlasov <vadim.vlasov@t-platforms.ru>
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190423123122.32573-1-fancer.lancer@gmail.com
2019-06-18 15:41:33 -04:00
Thomas Hellstrom
7a39f35ce4 drm/ttm: TTM fault handler helpers
With the vmwgfx dirty tracking, the default TTM fault handler is not
completely sufficient (vmwgfx need to modify the vma->vm_flags member,
and also needs to restrict the number of prefaults).

We also want to replicate the new ttm_bo_vm_reserve() functionality

So start turning the TTM vm code into helpers: ttm_bo_vm_fault_reserved()
and ttm_bo_vm_reserve(), and provide a default TTM fault handler for other
drivers to use.

Cc: "Christian König" <christian.koenig@amd.com>

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: "Christian König" <christian.koenig@amd.com> #v1
2019-06-18 15:19:34 +02:00
Thomas Hellstrom
32d1f6985c drm/ttm: Allow the driver to provide the ttm struct vm_operations_struct
Add a pointer to the struct vm_operations_struct in the bo_device, and
assign that pointer to the default value currently used.

The driver can then optionally modify that pointer and the new value
can be used for each new vma created.

Cc: "Christian König" <christian.koenig@amd.com>

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2019-06-18 15:19:34 +02:00
Christian König
d367bd2a5e drm/ttm: fix busy memory to fail other user v10
BOs on the LRU might be blocked during command submission
and cause OOM situations.

Avoid this by blocking for the first busy BO not locked by
the same ticket as the BO we are searching space for.

v10: completely start over with the patch since we didn't
     handled a whole bunch of corner cases.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-31 10:39:34 -05:00
Christian König
224ee02a9d drm/ttm: immediately move BOs to the new LRU v3
Move BOs which are currently in a lower domain to the new
LRU before allocating backing space while validating.

This makes sure that we always have enough entries on the
LRU to allow for other processes to wait for an operation
to complete.

v2: generalize the test
v3: fix rebase error

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-31 10:39:34 -05:00
Christian König
4c5ac9487c drm/ttm: cleanup ttm_bo_mem_space
We tried this once before, but that turned out to be more
complicated than thought. With all the right prerequisites
it looks like we can do this now.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-31 10:39:34 -05:00
Christian König
af1dac01a7 drm/ttm: remove manual placement preference
If drivers don't prefer a system memory placement
they should not but it into the placement list first.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-31 10:39:34 -05:00
Christian König
b2f7a61619 drm/ttm: return immediately in case of a signal
When a signal arrives we should return immediately for
handling it and not try other placements first.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-31 10:39:34 -05:00
Christian König
6e58ab7ac7 drm/ttm: Make LRU removal optional v2
We are already doing this for DMA-buf imports and also for
amdgpu VM BOs for quite a while now.

If this doesn't run into any problems we are probably going
to stop removing BOs from the LRU altogether.

v2: drop BUG_ON from ttm_bo_add_to_lru

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-31 10:39:34 -05:00
Linus Torvalds
a2d635decb drm pull request for 5.2
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Merge tag 'drm-next-2019-05-09' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "This has two exciting community drivers for ARM Mali accelerators.
  Since ARM has never been open source friendly on the GPU side of the
  house, the community has had to create open source drivers for the
  Mali GPUs. Lima covers the older t4xx and panfrost the newer 6xx/7xx
  series. Well done to all involved and hopefully this will help ARM
  head in the right direction.

  There is also now the ability if you don't have any of the legacy
  drivers enabled (pre-KMS) to remove all the pre-KMS support code from
  the core drm, this saves 10% or so in codesize on my machine.

  i915 also enable Icelake/Elkhart Lake Gen11 GPUs by default, vboxvideo
  moves out of staging.

  There are also some rcar-du patches which crossover with media tree
  but all should be acked by Mauro.

  Summary:

  uapi changes:
   - Colorspace connector property
   - fourcc - new YUV formts
   - timeline sync objects initially merged
   - expose FB_DAMAGE_CLIPS to atomic userspace

  new drivers:
   - vboxvideo: moved out of staging
   - aspeed: ASPEED SoC BMC chip display support
   - lima: ARM Mali4xx GPU acceleration driver support
   - panfrost: ARM Mali6xx/7xx Midgard/Bitfrost acceleration driver support

  core:
   - component helper docs
   - unplugging fixes
   - devm device init
   - MIPI/DSI rate control
   - shmem backed gem objects
   - connector, display_info, edid_quirks cleanups
   - dma_buf fence chain support
   - 64-bit dma-fence seqno comparison fixes
   - move initial fb config code to core
   - gem fence array helpers for Lima
   - ability to remove legacy support code if no drivers requires it (removes 10% of drm.ko size)
   - lease fixes

  ttm:
   - unified DRM_FILE_PAGE_OFFSET handling
   - Account for kernel allocations in kernel zone only

  panel:
   - OSD070T1718-19TS panel support
   - panel-tpo-td028ttec1 backlight support
   - Ronbo RB070D30 MIPI/DSI
   - Feiyang FY07024DI26A30-D MIPI-DSI panel
   - Rocktech jh057n00900 MIPI-DSI panel

  i915:
   - Comet Lake (Gen9) PCI IDs
   - Updated Icelake PCI IDs
   - Elkhartlake (Gen11) support
   - DP MST property addtions
   - plane and watermark fixes
   - Icelake port sync and VEBOX disable fixes
   - struct_mutex usage reduction
   - Icelake gamma fix
   - GuC reset fixes
   - make mmap more asynchronous
   - sound display power well race fixes
   - DDI/MIPI-DSI clocks for Icelake
   - Icelake RPS frequency changing support
   - Icelake workarounds

  amdgpu:
   - Use HMM for userptr
   - vega20 experimental smu11 support
   - RAS support for vega20
   - BACO support for vega12 + fixes for vega20
   - reworked IH interrupt handling
   - amdkfd RAS support
   - Freesync improvements
   - initial timeline sync object support
   - DC Z ordering fixes
   - NV12 planes support
   - colorspace properties for planes=
   - eDP opts if eDP already initialized

  nouveau:
   - misc fixes

  etnaviv:
   - misc fixes

  msm:
   - GPU zap shader support expansion
   - robustness ABI addition

  exynos:
   - Logging cleanups

  tegra:
   - Shared reset fix
   - CPU cache maintenance fix

  cirrus:
   - driver rewritten using simple helpers

  meson:
   - G12A support

  vmwgfx:
   - Resource dirtying management improvements
   - Userspace logging improvements

  virtio:
   - PRIME fixes

  rockchip:
   - rk3066 hdmi support

  sun4i:
   - DSI burst mode support

  vc4:
   - load tracker to detect underflow

  v3d:
   - v3d v4.2 support

  malidp:
   - initial Mali D71 support in komeda driver

  tfp410:
   - omap related improvement

  omapdrm:
   - drm bridge/panel support
   - drop some omap specific panels

  rcar-du:
   - Display writeback support"

* tag 'drm-next-2019-05-09' of git://anongit.freedesktop.org/drm/drm: (1507 commits)
  drm/msm/a6xx: No zap shader is not an error
  drm/cma-helper: Fix drm_gem_cma_free_object()
  drm: Fix timestamp docs for variable refresh properties.
  drm/komeda: Mark the local functions as static
  drm/komeda: Fixed warning: Function parameter or member not described
  drm/komeda: Expose bus_width to Komeda-CORE
  drm/komeda: Add sysfs attribute: core_id and config_id
  drm: add non-desktop quirk for Valve HMDs
  drm/panfrost: Show stored feature registers
  drm/panfrost: Don't scream about deferred probe
  drm/panfrost: Disable PM on probe failure
  drm/panfrost: Set DMA masks earlier
  drm/panfrost: Add sanity checks to submit IOCTL
  drm/etnaviv: initialize idle mask before querying the HW db
  drm: introduce a capability flag for syncobj timeline support
  drm: report consistent errors when checking syncobj capibility
  drm/nouveau/nouveau: forward error generated while resuming objects tree
  drm/nouveau/fb/ramgk104: fix spelling mistake "sucessfully" -> "successfully"
  drm/nouveau/i2c: Disable i2c bus access after ->fini()
  drm/nouveau: Remove duplicate ACPI_VIDEO_NOTIFY_PROBE definition
  ...
2019-05-08 21:35:19 -07:00
Christian König
bd4264112f drm/ttm: fix re-init of global structures
When a driver unloads without unloading TTM we don't correctly
clear the global structures leading to errors on re-init.

Next step should probably be to remove the global structures and
kobjs all together, but this is tricky since we need to maintain
backward compatibility.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Tested-by: Karol Herbst <kherbst@redhat.com>
CC: stable@vger.kernel.org # 5.0.x
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-04-19 11:11:20 -05:00
Lin Yi
543c364d8e drm/ttm: fix dma_fence refcount imbalance on error path
the ttm_bo_add_move_fence takes a reference to the struct dma_fence, but
failed to release it on the error path, leading to a memory leak.
add dma_fence_put before return when error occur.

Signed-off-by: Lin Yi <teroincn@163.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-04-11 10:02:21 -05:00