_PMD_PRESENT_MASK  220 arch/powerpc/include/asm/book3s/32/pgtable.h #define	pmd_present(pmd)	(pmd_val(pmd) & _PMD_PRESENT_MASK)
_PMD_PRESENT_MASK  197 arch/powerpc/include/asm/nohash/32/pgtable.h #define	pmd_present(pmd)	(pmd_val(pmd) & _PMD_PRESENT_MASK)