Add missing exports to allow several drivers to be built as module with
CONFIG_IA64_HP_ZX1_SWIOTLB.
Signed-off-by: NJan Beulich <jbeulich@novell.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NTony Luck <tony.luck@intel.com>