TASK_SIZE_64TB     31 arch/powerpc/include/asm/task_size_64.h #define TASK_SIZE_USER64		TASK_SIZE_64TB
TASK_SIZE_64TB     32 arch/powerpc/include/asm/task_size_64.h #define DEFAULT_MAP_WINDOW_USER64	TASK_SIZE_64TB
TASK_SIZE_64TB     38 arch/powerpc/include/asm/task_size_64.h #define TASK_CONTEXT_SIZE TASK_SIZE_64TB