RADIX_PTE_FRAG_NR   17 arch/powerpc/include/asm/book3s/64/radix-4k.h #define RADIX_PTE_FRAG_NR	(PAGE_SIZE >> RADIX_PTE_FRAG_SIZE_SHIFT)
RADIX_PTE_FRAG_NR   18 arch/powerpc/include/asm/book3s/64/radix-64k.h #define RADIX_PTE_FRAG_NR	(PAGE_SIZE >> RADIX_PTE_FRAG_SIZE_SHIFT)