DEFAULT_MAP_WINDOW_USER64 14 arch/powerpc/include/asm/book3s/64/slice.h #define SLB_ADDR_LIMIT_DEFAULT DEFAULT_MAP_WINDOW_USER64 DEFAULT_MAP_WINDOW_USER64 54 arch/powerpc/include/asm/task_size_64.h #define TASK_UNMAPPED_BASE_USER64 (PAGE_ALIGN(DEFAULT_MAP_WINDOW_USER64 / 4)) DEFAULT_MAP_WINDOW_USER64 69 arch/powerpc/include/asm/task_size_64.h ((is_32bit_task()) ? TASK_SIZE_USER32 : DEFAULT_MAP_WINDOW_USER64) DEFAULT_MAP_WINDOW_USER64 74 arch/powerpc/include/asm/task_size_64.h #define STACK_TOP_USER64 DEFAULT_MAP_WINDOW_USER64