37 #define __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, insn)		\  argument
39 	register __typeof__(*(p1)) __old1 asm("2") = (o1);		\
41 	register __typeof__(*(p1)) __new1 asm("4") = (n1);		\
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
66 	switch (sizeof(*(p1))) {					\
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
81 	__typeof__(p1) __p1 = (p1);					\
83 	BUILD_BUG_ON(sizeof(*(p1)) != sizeof(long));			\