x86_64: prepare shared kernel/pci-gart.c

Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86_64/kernel/Makefile

@@ -29,7 +29,7 @@ obj-$(CONFIG_PM)		+= suspend_64.o
 obj-$(CONFIG_HIBERNATION)	+= suspend_asm_64.o
 obj-$(CONFIG_CPU_FREQ)		+= ../../i386/kernel/cpu/cpufreq/
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
-obj-$(CONFIG_IOMMU)		+= pci-gart.o aperture_64.o
+obj-$(CONFIG_IOMMU)		+= pci-gart_64.o aperture_64.o
 obj-$(CONFIG_CALGARY_IOMMU)	+= pci-calgary_64.o tce_64.o
 obj-$(CONFIG_SWIOTLB)		+= pci-swiotlb_64.o
 obj-$(CONFIG_KPROBES)		+= kprobes_64.o