diff options
| author | Christian König <christian.koenig@amd.com> | 2022-04-21 21:20:49 +0300 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2022-05-02 10:01:51 +0300 |
| commit | 1ea28bc5542d607ff7c806e409a72862c5af8f5e (patch) | |
| tree | 7ebc43267b925156feb1e39c3f5cad0f0ada1d8c /include/drm/drm_plane.h | |
| parent | 9ff9236394dd8a4fc7d1d3f3dc9d00cda3dd58be (diff) | |
| download | linux-1ea28bc5542d607ff7c806e409a72862c5af8f5e.tar.xz | |
drm: handle kernel fences in drm_gem_plane_helper_prepare_fb v2
drm_gem_plane_helper_prepare_fb() was using
drm_atomic_set_fence_for_plane() which ignores all implicit fences when an
explicit fence is already set. That's rather unfortunate when the fb still
has a kernel fence we need to wait for to avoid presenting garbage on the
screen.
So instead update the fence in the plane state directly. While at it also
take care of all potential GEM objects and not just the first one.
Also remove the now unused drm_atomic_set_fence_for_plane() function, new
drivers should probably use the atomic helpers directly.
v2: improve kerneldoc, use local variable and num_planes, WARN_ON_ONCE
on missing planes.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v1)
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220429134230.24334-1-christian.koenig@amd.com
Diffstat (limited to 'include/drm/drm_plane.h')
| -rw-r--r-- | include/drm/drm_plane.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h index 2628c7cde2da..89ea54652e87 100644 --- a/include/drm/drm_plane.h +++ b/include/drm/drm_plane.h @@ -74,9 +74,7 @@ struct drm_plane_state { * * Optional fence to wait for before scanning out @fb. The core atomic * code will set this when userspace is using explicit fencing. Do not - * write this field directly for a driver's implicit fence, use - * drm_atomic_set_fence_for_plane() to ensure that an explicit fence is - * preserved. + * write this field directly for a driver's implicit fence. * * Drivers should store any implicit fence in this from their * &drm_plane_helper_funcs.prepare_fb callback. See drm_gem_plane_helper_prepare_fb() |