-obj-$(CONFIG_PM) += cpu.o
-obj-$(CONFIG_HIBERNATION) += swsusp.o suspend.o
+ifeq ($(CONFIG_X86_64),y)
+ obj-$(CONFIG_PM) += suspend_64.o
+ obj-$(CONFIG_HIBERNATION) += hibernate_asm_64.o
+else
+ obj-$(CONFIG_PM) += cpu.o
+ obj-$(CONFIG_HIBERNATION) += swsusp.o suspend.o
+endif