RADIX_KERN_IO_END  109 arch/powerpc/include/asm/book3s/64/radix.h #define RADIX_VMEMMAP_START	RADIX_KERN_IO_END
RADIX_KERN_IO_END  583 arch/powerpc/mm/book3s64/radix_pgtable.c 	__kernel_io_end = RADIX_KERN_IO_END;