It's the horror and shouldn't be used. Realized we're not clear on
this in a discussion with Rob about what msm is doing to better
support async commits.
Cc: Rob Clark <robdclark@xxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Maxime Ripard <mripard@xxxxxxxxxx>
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
---
include/drm/drm_atomic.h | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index d07c851d255b..413fd0ca56a8 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -308,7 +308,6 @@ struct __drm_private_objs_state {
* struct drm_atomic_state - the global state object for atomic updates
* @ref: count of all references to this state (will not be freed until zero)
* @dev: parent DRM device
- * @legacy_cursor_update: hint to enforce legacy cursor IOCTL semantics
* @async_update: hint for asynchronous plane update
* @planes: pointer to array of structures with per-plane data
* @crtcs: pointer to array of CRTC pointers
@@ -336,6 +335,17 @@ struct drm_atomic_state {
* drm_atomic_crtc_needs_modeset().
*/
bool allow_modeset : 1;
+ /**
+ * @legacy_cursor_update:
+ *
+ * Hint to enforce legacy cursor IOCTL semantics.
+ *
+ * WARNING: This is thoroughly broken and pretty much impossible to
+ * implement correctly. Drivers must ignore this and should instead
+ * implement &drm_plane_helper_funcs.atomic_async_check and
+ * &drm_plane_helper_funcs.atomic_async_commit hooks. New users of this
+ * flag are not allowed.
+ */
bool legacy_cursor_update : 1;
bool async_update : 1;
/**
--
2.28.0
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