MK_IOSPACE_PFN    406 arch/sparc/include/asm/pgtable_32.h #define MK_IOSPACE_PFN(space, pfn)	(pfn | (space << (BITS_PER_LONG - 4)))
MK_IOSPACE_PFN   1027 arch/sparc/include/asm/pgtable_64.h #define MK_IOSPACE_PFN(space, pfn)	(pfn | (space << (BITS_PER_LONG - 4)))