37 #define __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, insn)		\  argument
40 	register __typeof__(*(p2)) __old2 asm("3") = (o2);		\
42 	register __typeof__(*(p2)) __new2 asm("5") = (n2);		\
50 		  [ptr] "Q" (*(p1)), "Q" (*(p2))			\
55 #define __cmpxchg_double_4(p1, p2, o1, o2, n1, n2) \  argument
56 	__cmpxchg_double_op(p1, p2, o1, o2, n1, n2, "cds")
58 #define __cmpxchg_double_8(p1, p2, o1, o2, n1, n2) \  argument
59 	__cmpxchg_double_op(p1, p2, o1, o2, n1, n2, "cdsg")
63 #define __cmpxchg_double(p1, p2, o1, o2, n1, n2)			\  argument
68 		__ret = __cmpxchg_double_4(p1, p2, o1, o2, n1, n2);	\
71 		__ret = __cmpxchg_double_8(p1, p2, o1, o2, n1, n2);	\
79 #define cmpxchg_double(p1, p2, o1, o2, n1, n2)				\  argument
82 	__typeof__(p2) __p2 = (p2);					\
84 	BUILD_BUG_ON(sizeof(*(p2)) != sizeof(long));			\