69 	drm_mga_age_t age;  member
337 #define SET_AGE(age, h, w)						\  argument
339 	(age)->head = h;						\
340 	(age)->wrap = w;						\
343 #define TEST_AGE(age, h, w)		((age)->wrap < w ||		\  argument
344 					 ((age)->wrap == w &&		\
345 					  (age)->head < h))
351 		entry->age.head = (dev_priv->prim.tail +		\
353 		entry->age.wrap = dev_priv->sarea_priv->last_wrap;	\
355 		entry->age.head = 0;					\
356 		entry->age.wrap = 0;					\