drm/doc: document DRM_IOCTL_SYNCOBJ_EVENTFD

struct drm_syncobj_eventfd was documented, but
DRM_IOCTL_SYNCOBJ_EVENTFD was not. This prevents references to this
define from being properly linkified in docs.

Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Cc: Simona Vetter <simona@ffwll.ch>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Michel Dänzer <michel.daenzer@mailbox.org>
Link: https://patch.msgid.link/20260327171812.128290-1-contact@emersion.fr

diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h
index 27cc159c1d275c7a7fe057840ef792f30a582bb7..495462e44a175180c68978177a2251de01998ec1 100644 (file)
--- a/include/uapi/drm/drm.h
+++ b/include/uapi/drm/drm.h
@@ -1323,6 +1323,13 @@ extern "C" {
  */
 #define DRM_IOCTL_MODE_GETFB2          DRM_IOWR(0xCE, struct drm_mode_fb_cmd2)
 
+/**
+ * DRM_IOCTL_SYNCOBJ_EVENTFD - Register an eventfd to be signalled by a syncobj.
+ *
+ * This can be used to integrate a syncobj in an event loop.
+ *
+ * The IOCTL argument is a struct drm_syncobj_eventfd.
+ */
 #define DRM_IOCTL_SYNCOBJ_EVENTFD      DRM_IOWR(0xCF, struct drm_syncobj_eventfd)
 
 /**