MACH2PHYS_VIRT_START
#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>2)
#define machine_to_phys_mapping ((unsigned long *)MACH2PHYS_VIRT_START)
#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>3)