fbcon_redraw_move
fbcon_redraw_move(vc, p, t + count, vc->vc_rows - count, t);
fbcon_redraw_move(vc, p, t, vc->vc_rows - count, t + count);
fbcon_redraw_move(vc, p, 0, t, count);
fbcon_redraw_move(vc, p, b,
fbcon_redraw_move(vc, p, t + count, b - t - count, t);
static void fbcon_redraw_move(struct vc_data *vc, struct fbcon_display *p,
fbcon_redraw_move(vc, p, b, vc->vc_rows - b,
fbcon_redraw_move(vc, p, count, t, 0);
fbcon_redraw_move(vc, p, t, b - t - count, t + count);