To support drm_panic, most drivers need to find the current primary visible plane with a framebuffer attached. Signed-off-by: Jocelyn Falempe <jfalempe@xxxxxxxxxx> --- include/drm/drm_plane.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h index c6565a6f9324..41c08a2ddf8d 100644 --- a/include/drm/drm_plane.h +++ b/include/drm/drm_plane.h @@ -948,6 +948,21 @@ static inline struct drm_plane *drm_plane_find(struct drm_device *dev, list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) \ for_each_if (plane->type == DRM_PLANE_TYPE_OVERLAY) +/** + * drm_for_each_primary_visible_plane - iterate over all primary visible planes + * @plane: the loop cursor + * @dev: the DRM device + * + * Iterate over all primary, visible plane, with a framebuffer. + * This is useful for drm_panic, to find the current scanout buffer. + */ +#define drm_for_each_primary_visible_plane(plane, dev) \ + list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \ + for_each_if((plane)->type == DRM_PLANE_TYPE_PRIMARY && \ + (plane)->state && \ + (plane)->state->fb && \ + (plane)->state->visible) + /** * drm_for_each_plane - iterate over all planes * @plane: the loop cursor -- 2.43.0
