GET_IOSPACE 407 arch/sparc/include/asm/pgtable_32.h #define GET_IOSPACE(pfn) (pfn >> (BITS_PER_LONG - 4)) GET_IOSPACE 1028 arch/sparc/include/asm/pgtable_64.h #define GET_IOSPACE(pfn) (pfn >> (BITS_PER_LONG - 4))