linux-toradex.git/include/drm, branch v4.14-rc7

lib/interval_tree: fast overlap detection

2017-09-09T01:26:49+00:00

Allow interval trees to quickly check for overlaps to avoid unnecesary
tree lookups in interval_tree_iter_first().

As of this patch, all interval tree flavors will require using a
'rb_root_cached' such that we can have the leftmost node easily
available.  While most users will make use of this feature, those with
special functions (in addition to the generic insert, delete, search
calls) will avoid using the cached option as they can do funky things
with insertions -- for example, vma_interval_tree_insert_after().

[jglisse@redhat.com: fix deadlock from typo vm_lock_anon_vma()]
  Link: http://lkml.kernel.org/r/20170808225719.20723-1-jglisse@redhat.com
Link: http://lkml.kernel.org/r/20170719014603.19029-12-dave@stgolabs.net
Signed-off-by: Davidlohr Bueso 
Signed-off-by: Jérôme Glisse 
Acked-by: Christian König 
Acked-by: Peter Zijlstra (Intel) 
Acked-by: Doug Ledford 
Acked-by: Michael S. Tsirkin 
Cc: David Airlie 
Cc: Jason Wang 
Cc: Christian Benvenuti 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drm/syncobj: Add a callback mechanism for replace_fence (v3)

2017-08-28T20:26:42+00:00

It is useful in certain circumstances to know when the fence is replaced
in a syncobj.  Specifically, it may be useful to know when the fence
goes from NULL to something valid.  This does make syncobj_replace_fence
a little more expensive because it has to take a lock but, in the common
case where there is no callback list, it spends a very short amount of
time inside the lock.

v2:
 - Don't lock in drm_syncobj_fence_get.  We only really need to lock
   around fence_replace to make the callback work.
v3:
 - Fix the cb_list comment to make kbuild happy

Signed-off-by: Jason Ekstrand 
Signed-off-by: Dave Airlie

drm/syncobj: Add a race-free drm_syncobj_fence_get helper (v2)

2017-08-28T20:20:30+00:00

The atomic exchange operation in drm_syncobj_replace_fence is sufficient
for the case where it races with itself.  However, if you have a race
between a replace_fence and dma_fence_get(syncobj->fence), you may end
up with the entire replace_fence happening between the point in time
where the one thread gets the syncobj->fence pointer and when it calls
dma_fence_get() on it.  If this happens, then the reference may be
dropped before we get a chance to get a new one.  The new helper uses
dma_fence_get_rcu_safe to get rid of the race.

This is also needed because it allows us to do a bit more than just get
a reference in drm_syncobj_fence_get should we wish to do so.

v2:
 - RCU isn't that scary
 - Call rcu_read_lock/unlock
 - Don't rename fence to _fence
 - Make the helper static inline

Signed-off-by: Jason Ekstrand 
Acked-by: Christian König  (v1)
Signed-off-by: Dave Airlie

drm/syncobj: Rename fence_get to find_fence

2017-08-28T20:17:37+00:00

The function has far more in common with drm_syncobj_find than with
any in the get/put functions.

Signed-off-by: Jason Ekstrand 
Acked-by: Christian König  (v1)
Signed-off-by: Dave Airlie

Merge branch 'drm-next-4.14' of git://people.freedesktop.org/~agd5f/linux into drm-next

2017-08-20T20:22:17+00:00

More changes for 4.14.  Highlights:
- command submission overhead improvements
- Huge page support for vega10
- physical mode support for mjpeg for asics that don't support UVD vm
- improve ttm_mem_type_manager_func debug
- misc ttm fixes, cleanups
- misc gpuvm cleanups

* 'drm-next-4.14' of git://people.freedesktop.org/~agd5f/linux: (26 commits)
  drm/ttm: use reservation_object_trylock in ttm_bo_individualize_resv v2
  drm/amdgpu: fix vega10 graphic hang issue in S3 test
  drm/amdgpu: bump version for support of UVD MJPEG decode
  drm/amdgpu: add MJPEG check for UVD physical mode msg buffer
  drm/ttm: Fix accounting error when fail to get pages for pool
  drm/amd/amdgpu: expose fragment size as module parameter (v2)
  drm/amd/amdgpu: store fragment_size in vm_manager
  drm/amdgpu: rename VM invalidated to moved
  drm/amdgpu: separate bo_va structure
  drm/amdgpu: drop the extra VM huge page flag v2
  drm/amdgpu: remove superflous amdgpu_bo_kmap in the VM
  drm/amdgpu: cleanup static CSA handling
  drm/amdgpu: SHADOW and VRAM_CONTIGUOUS flags shouldn't be used by userspace
  drm/amdgpu: save list length when fence is signaled
  drm/amdgpu: move vram usage tracking into the vram manager v2
  drm/amdgpu: move gtt usage tracking into the gtt manager v2
  drm/amdgpu: move debug print into the MM managers
  drm/amdgpu: fix incorrect use of the lru_lock
  drm/radeon: fix incorrect use of the lru_lock
  drm/ttm: make ttm_mem_type_manager_func debug more useful
  ...

Merge airlied/drm-next into drm-misc-next

2017-08-18T14:52:44+00:00

Archit requested this backmerge to facilitate merging some patches
depending on changes between -rc2 & -rc5

Signed-off-by: Sean Paul

drm/ttm: make ttm_mem_type_manager_func debug more useful

2017-08-17T19:45:59+00:00

Provide the drm printer directly instead of just the callback.

Signed-off-by: Christian König 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher

Merge tag 'drm-misc-next-2017-08-16' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-08-16T21:33:41+00:00

UAPI Changes:
- vc4: Allow userspace to dictate rendering order in submit_cl ioctl (Eric)

Cross-subsystem Changes:
- vboxvideo: One of Cihangir's patches applies to vboxvideo which is maintained
	     in staging

Core Changes:
- atomic_legacy_backoff is officially killed (Daniel)
- Extract drm_device.h (Daniel)
- Unregister drm device on unplug (Daniel)
- Rename deprecated drm_*_(un)?reference functions to drm_*_{get|put} (Cihangir)

Driver Changes:
- vc4: Error/destroy path cleanups, log level demotion, edid leak (Eric)
- various: Make various drm_*_funcs structs const (Bhumika)
- tinydrm: add support for LEGO MINDSTORMS EV3 LCD (David)
- various: Second half of .dumb_{map_offset|destroy} defaults set (Noralf)

Cc: Daniel Vetter 
Cc: Eric Anholt 
Cc: Bhumika Goyal 
Cc: Cihangir Akturk 
Cc: David Lechner 
Cc: Noralf Trønnes 

* tag 'drm-misc-next-2017-08-16' of git://anongit.freedesktop.org/git/drm-misc: (50 commits)
  drm/gem-cma-helper: Remove drm_gem_cma_dumb_map_offset()
  drm/virtio: Use the drm_driver.dumb_destroy default
  drm/bochs: Use the drm_driver.dumb_destroy default
  drm/mgag200: Use the drm_driver.dumb_destroy default
  drm/exynos: Use .dumb_map_offset and .dumb_destroy defaults
  drm/msm: Use the drm_driver.dumb_destroy default
  drm/ast: Use the drm_driver.dumb_destroy default
  drm/qxl: Use the drm_driver.dumb_destroy default
  drm/udl: Use the drm_driver.dumb_destroy default
  drm/cirrus: Use the drm_driver.dumb_destroy default
  drm/tegra: Use .dumb_map_offset and .dumb_destroy defaults
  drm/gma500: Use .dumb_map_offset and .dumb_destroy defaults
  drm/mxsfb: Use .dumb_map_offset and .dumb_destroy defaults
  drm/meson: Use .dumb_map_offset and .dumb_destroy defaults
  drm/kirin: Use .dumb_map_offset and .dumb_destroy defaults
  drm/vc4: Continue the switch to drm_*_put() helpers
  drm/vc4: Fix leak of HDMI EDID
  dma-buf: fix reservation_object_wait_timeout_rcu to wait correctly v2
  dma-buf: add reservation_object_copy_fences (v2)
  drm/tinydrm: add support for LEGO MINDSTORMS EV3 LCD
  ...

drm: Add GEM backed framebuffer library

2017-08-16T19:32:23+00:00

This library provides helpers for drivers that don't subclass
drm_framebuffer and are backed by drm_gem_object. The code is
taken from drm_fb_cma_helper.

Signed-off-by: Noralf Trønnes 
Reviewed-by: Daniel Vetter 
Reviewed-by: Eric Anholt 
Link: https://patchwork.freedesktop.org/patch/msgid/1502631125-13557-2-git-send-email-noralf@tronnes.org

drm/gem-cma-helper: Remove drm_gem_cma_dumb_map_offset()

2017-08-16T18:21:24+00:00

There are no more users of drm_gem_cma_dumb_map_offset(), so remove it.

Signed-off-by: Noralf Trønnes 
Reviewed-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/1502034068-51384-20-git-send-email-noralf@tronnes.org