diff options
Diffstat (limited to 'drivers/gpu/drm/drm_atomic_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 0fed20692df4..fa64b31ae579 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -2267,8 +2267,8 @@ void drm_atomic_helper_swap_state(struct drm_atomic_state *state, struct drm_plane *plane; struct drm_plane_state *old_plane_state, *new_plane_state; struct drm_crtc_commit *commit; - void *obj, *obj_state; - const struct drm_private_state_funcs *funcs; + struct drm_private_obj *obj; + struct drm_private_state *old_obj_state, *new_obj_state; if (stall) { for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { @@ -2330,8 +2330,15 @@ void drm_atomic_helper_swap_state(struct drm_atomic_state *state, plane->state = new_plane_state; } - __for_each_private_obj(state, obj, obj_state, i, funcs) - funcs->swap_state(obj, &state->private_objs[i].obj_state); + for_each_oldnew_private_obj_in_state(state, obj, old_obj_state, new_obj_state, i) { + WARN_ON(obj->state != old_obj_state); + + old_obj_state->state = state; + new_obj_state->state = NULL; + + state->private_objs[i].state = old_obj_state; + obj->state = new_obj_state; + } } EXPORT_SYMBOL(drm_atomic_helper_swap_state); @@ -3828,3 +3835,18 @@ fail: return ret; } EXPORT_SYMBOL(drm_atomic_helper_legacy_gamma_set); + +/** + * __drm_atomic_helper_private_duplicate_state - copy atomic private state + * @obj: CRTC object + * @state: new private object state + * + * Copies atomic state from a private objects's current state and resets inferred values. + * This is useful for drivers that subclass the private state. + */ +void __drm_atomic_helper_private_obj_duplicate_state(struct drm_private_obj *obj, + struct drm_private_state *state) +{ + memcpy(state, obj->state, sizeof(*state)); +} +EXPORT_SYMBOL(__drm_atomic_helper_private_obj_duplicate_state); |