ia64: Patch by Alex Williamson: forward port of the 2.4 sba_iommu.

arch/ia64/hp/zx1/Makefile

@@ -5,5 +5,4 @@
 # Copyright (C) Alex Williamson (alex_williamson@hp.com)
 #
 
-obj-y := hpzx1_misc.o
 obj-$(CONFIG_IA64_GENERIC) += hpzx1_machvec.o

arch/ia64/kernel/Makefile

@@ -11,6 +11,8 @@ obj-y := acpi.o entry.o efi.o efi_stub.o gate.o ia64_ksyms.o irq.o irq_ia64.o ir
 obj-$(CONFIG_EFI_VARS)		+= efivars.o
 obj-$(CONFIG_FSYS)		+= fsys.o
 obj-$(CONFIG_IA64_BRL_EMU)	+= brl_emu.o
+obj-$(CONFIG_IA64_GENERIC)	+= acpi-ext.o
+obj-$(CONFIG_IA64_HP_ZX1)	+= acpi-ext.o
 obj-$(CONFIG_IA64_MCA)		+= mca.o mca_asm.o
 obj-$(CONFIG_IA64_PALINFO)	+= palinfo.o
 obj-$(CONFIG_IOSAPIC)		+= iosapic.o