-#define TI_FLAGS 0
-#define TI_PREEMPT 4
-#define TI_ADDR_LIMIT 8
-#define TI_TASK 12
-#define TI_EXEC_DOMAIN 16
-#define TI_CPU 20
-#define TI_CPU_DOMAIN 24
-#define TI_CPU_SAVE 28
-#define TI_USED_CP 76
-#define TI_FPSTATE (TI_USED_CP+16)
+extern void iwmmxt_task_disable(struct thread_info *);
+extern void iwmmxt_task_copy(struct thread_info *, void *);
+extern void iwmmxt_task_restore(struct thread_info *, void *);
+extern void iwmmxt_task_release(struct thread_info *);