HW_PAGE_SHIFT      17 arch/powerpc/include/asm/page_64.h #define HW_PAGE_SIZE		(ASM_CONST(1) << HW_PAGE_SHIFT)
HW_PAGE_SHIFT      24 arch/powerpc/include/asm/page_64.h #define PAGE_FACTOR		(PAGE_SHIFT - HW_PAGE_SHIFT)
HW_PAGE_SHIFT     150 arch/powerpc/mm/book3s64/hash_64k.c 		pa = pte_pfn(__pte(old_pte)) << HW_PAGE_SHIFT;