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))