KSEG_PFN 196 arch/alpha/include/asm/pgtable.h ((((pfn) & KSEG_PFN) == (0x40000000000UL >> PAGE_SHIFT)) \ KSEG_PFN 197 arch/alpha/include/asm/pgtable.h ? ((pfn) ^= KSEG_PFN) : (pfn))