diff options
| author | Gustavo Padovan <gustavo.padovan@collabora.co.uk> | 2016-11-15 22:06:39 +0900 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-11-16 09:55:27 +0100 |
| commit | 9626014258a5957ff120b3987ee72decdbe0c798 (patch) | |
| tree | b3cc9261ee8e301cd7b426ab5c87c97ec5f27724 /include/drm | |
| parent | 19423ba7109a94dfb3beda88f9dcced54e4831d8 (diff) | |
| download | linux-9626014258a5957ff120b3987ee72decdbe0c798.tar.bz2 | |
drm/fence: add in-fences support
There is now a new property called IN_FENCE_FD attached to every plane
state that receives sync_file fds from userspace via the atomic commit
IOCTL.
The fd is then translated to a fence (that may be a fence_array
subclass or just a normal fence) and then used by DRM to fence_wait() for
all fences in the sync_file to signal. So it only commits when all
framebuffers are ready to scanout.
v2: Comments by Daniel Vetter:
- remove set state->fence = NULL in destroy phase
- accept fence -1 as valid and just return 0
- do not call fence_get() - sync_file_fences_get() already calls it
- fence_put() if state->fence is already set, in case userspace
set the property more than once.
v3: WARN_ON if fence is set but state has no FB
v4: Comment from Maarten Lankhorst
- allow set fence with no related fb
v5: rename FENCE_FD to IN_FENCE_FD
v6: Comments by Daniel Vetter:
- rename plane_state->in_fence back to "fence"
- re-introduce WARN_ON if fence set but no fb
- rebase after fence -> dma_fence rename
v7: Comments by Brian Starkey
- set state->fence to NULL when duplicating the state
- fail if IN_FENCE_FD was already set
v8: rebase against latest drm-misc
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Tested-by: Robert Foss <robert.foss@collabora.com>
[danvet: Rebase onto extracted drm_mode_config.[hc].]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_mode_config.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/drm/drm_mode_config.h b/include/drm/drm_mode_config.h index 5d11b258512d..c6754ccefe2b 100644 --- a/include/drm/drm_mode_config.h +++ b/include/drm/drm_mode_config.h @@ -481,6 +481,11 @@ struct drm_mode_config { */ struct drm_property *prop_fb_id; /** + * @prop_in_fence_fd: Sync File fd representing the incoming fences + * for a Plane. + */ + struct drm_property *prop_in_fence_fd; + /** * @prop_crtc_id: Default atomic plane property to specify the * &drm_crtc. */ |