20 #define atomic_read(v)		ACCESS_ONCE((v)->counter)  argument
21 #define atomic_set(v, i)	(((v)->counter) = i)  argument
34 static inline void atomic_##op(int i, atomic_t *v)			\
36 	__asm__ __volatile__(#asm_op "l %1,%0" : "+m" (*v) : ASM_DI (i));\
42 static inline int atomic_##op##_return(int i, atomic_t *v)		\
51 			: "+m" (*v), "=&d" (t), "=&d" (tmp)		\
52 			: "g" (i), "2" (atomic_read(v)));		\
59 static inline int atomic_##op##_return(int i, atomic_t * v)		\
65 	t = (v->counter c_op i);					\
84 static inline void atomic_inc(atomic_t *v)  in atomic_inc()  argument
86 	__asm__ __volatile__("addql #1,%0" : "+m" (*v));  in atomic_inc()
89 static inline void atomic_dec(atomic_t *v)  in atomic_dec()  argument
91 	__asm__ __volatile__("subql #1,%0" : "+m" (*v));  in atomic_dec()
94 static inline int atomic_dec_and_test(atomic_t *v)  in atomic_dec_and_test()  argument
97 	__asm__ __volatile__("subql #1,%1; seq %0" : "=d" (c), "+m" (*v));  in atomic_dec_and_test()
101 static inline int atomic_dec_and_test_lt(atomic_t *v)  in atomic_dec_and_test_lt()  argument
106 		: "=d" (c), "=m" (*v)  in atomic_dec_and_test_lt()
107 		: "m" (*v));  in atomic_dec_and_test_lt()
111 static inline int atomic_inc_and_test(atomic_t *v)  in atomic_inc_and_test()  argument
114 	__asm__ __volatile__("addql #1,%1; seq %0" : "=d" (c), "+m" (*v));  in atomic_inc_and_test()
120 #define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))  argument
121 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))  argument
125 static inline int atomic_cmpxchg(atomic_t *v, int old, int new)  in atomic_cmpxchg()  argument
131 	prev = atomic_read(v);  in atomic_cmpxchg()
133 		atomic_set(v, new);  in atomic_cmpxchg()
138 static inline int atomic_xchg(atomic_t *v, int new)  in atomic_xchg()  argument
144 	prev = atomic_read(v);  in atomic_xchg()
145 	atomic_set(v, new);  in atomic_xchg()
152 #define atomic_dec_return(v)	atomic_sub_return(1, (v))  argument
153 #define atomic_inc_return(v)	atomic_add_return(1, (v))  argument
155 static inline int atomic_sub_and_test(int i, atomic_t *v)  in atomic_sub_and_test()  argument
159 			     : "=d" (c), "+m" (*v)  in atomic_sub_and_test()
164 static inline int atomic_add_negative(int i, atomic_t *v)  in atomic_add_negative()  argument
168 			     : "=d" (c), "+m" (*v)  in atomic_add_negative()
173 static inline void atomic_clear_mask(unsigned long mask, unsigned long *v)  in atomic_clear_mask()  argument
175 	__asm__ __volatile__("andl %1,%0" : "+m" (*v) : ASM_DI (~(mask)));  in atomic_clear_mask()
178 static inline void atomic_set_mask(unsigned long mask, unsigned long *v)  in atomic_set_mask()  argument
180 	__asm__ __volatile__("orl %1,%0" : "+m" (*v) : ASM_DI (mask));  in atomic_set_mask()
183 static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)  in __atomic_add_unless()  argument
186 	c = atomic_read(v);  in __atomic_add_unless()
190 		old = atomic_cmpxchg((v), c, c + (a));  in __atomic_add_unless()