PTE_FRAG_SIZE_SHIFT  221 arch/powerpc/include/asm/book3s/64/pgtable.h #define PTE_FRAG_SIZE (1UL << PTE_FRAG_SIZE_SHIFT)
PTE_FRAG_SIZE_SHIFT  120 arch/powerpc/include/asm/pgtable.h #define PTE_FRAG_SIZE		(1UL << PTE_FRAG_SIZE_SHIFT)
PTE_FRAG_SIZE_SHIFT   25 arch/powerpc/mm/pgtable-frag.c 	count = ((unsigned long)pte_frag & ~PAGE_MASK) >> PTE_FRAG_SIZE_SHIFT;