backend/drm: document wlr_drm_plane surface fields
@@ -20,7 +20,9 @@ struct wlr_drm_plane {
uint32_t type;
uint32_t id;
+ /* Local if this isn't a multi-GPU setup, on the parent otherwise. */
struct wlr_drm_surface surf;
+ /* Local, only initialized on multi-GPU setups. */
struct wlr_drm_surface mgpu_surf;
/* Buffer to be submitted to the kernel on the next page-flip */
