34 int _atomic_xchg(int *ptr, int n);
37 int _atomic_cmpxchg(int *ptr, int o, int n);
38 long long _atomic64_xchg(long long *v, long long n);
41 long long _atomic64_cmpxchg(long long *v, long long o, long long n);
43 #define xchg(ptr, n)							\  argument
48 		(typeof(*(ptr)))_atomic_xchg((int *)(ptr), (int)(n));	\
51 #define cmpxchg(ptr, o, n)						\  argument
57 						(int)n);		\
60 #define xchg64(ptr, n)							\  argument
66 						(long long)(n));	\
69 #define cmpxchg64(ptr, o, n)						\  argument
75 					(long long)o, (long long)n);	\
80 #define xchg(ptr, n)							\  argument
88 					(u32)(unsigned long)(n));	\
92 				__insn_exch((ptr), (unsigned long)(n));	\
102 #define cmpxchg(ptr, o, n)						\  argument
111 					(u32)(unsigned long)(n));	\
115 						(long long)(n));	\