_RPAGE_RPN44       38 arch/powerpc/include/asm/book3s/64/hash-4k.h #define H_PAGE_F_SECOND	_RPAGE_RPN44	/* HPTE is in 2ndary HPTEG */
_RPAGE_RPN44       35 arch/powerpc/include/asm/book3s/64/hash-64k.h #define H_PAGE_BUSY	_RPAGE_RPN44     /* software: PTE & hash are busy */