DocBook/drm: Insert `()' after function name

	</para>

	<para>

	  Once your global TTM accounting structure is set up and initialized

	  by calling ttm_global_item_ref on it,

	  by calling ttm_global_item_ref() on it,

	  you need to create a buffer object TTM to

	  provide a pool for buffer object allocation by clients and the

	  kernel itself.  The type of this object should be TTM_GLOBAL_TTM_BO,

	  and its size should be sizeof(struct ttm_bo_global).  Again,

	  driver specific init and release functions may be provided,

	  likely eventually calling ttm_bo_global_init and

	  ttm_bo_global_release, respectively.  Also, like the previous

	  object, ttm_global_item_ref is used to create an initial reference

	  likely eventually calling ttm_bo_global_init() and

	  ttm_bo_global_release(), respectively.  Also, like the previous

	  object, ttm_global_item_ref() is used to create an initial reference

	  count for the TTM, which will call your initialization function.

	</para>

      </sect3>