43  * @v: pointer of type atomic_t
45  * Atomically reads the value of @v.
47 #define atomic_read(v)		READ_ONCE((v)->counter)  argument
51  * @v: pointer of type atomic_t
54  * Atomically sets the value of @v to @i.
56 #define atomic_set(v, i)	WRITE_ONCE((v)->counter, (i))  argument
59 static __inline__ void atomic_##op(int i, atomic_t * v)			\
63 	: "+ZB" (v->counter)				   		\
69 static __inline__ int atomic_##op##_return##suffix(int i, atomic_t * v)	\
74 	"am"#asm_op#mb".w" " %1, %2, %0		\n"			\
75 	: "+ZB" (v->counter), "=&r" (result)				\
83 static __inline__ int atomic_fetch_##op##suffix(int i, atomic_t * v)	\
88 	"am"#asm_op#mb".w" " %1, %2, %0		\n"			\
89 	: "+ZB" (v->counter), "=&r" (result)				\
152 static __inline__ int atomic_fetch_add_unless(atomic_t *v, int a, int u)  in ATOMIC_OPS()
162 		"	b	2f\n"  in ATOMIC_OPS()
165 		"2:\n"  in ATOMIC_OPS()
167 		  [c]"=ZB" (v->counter)  in ATOMIC_OPS()
178  * @v: pointer of type atomic_t
180  * Atomically test @v and subtract @i if @v is greater or equal than @i.
181  * The function returns the old value of @v minus @i.
183 static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)  in atomic_sub_if_positive()  argument
190 		"1:	ll.w	%1, %2		# atomic_sub_if_positive\n"  in atomic_sub_if_positive()
193 		"	blt	%0, $zero, 2f				\n"  in atomic_sub_if_positive()
194 		"	sc.w	%1, %2					\n"  in atomic_sub_if_positive()
196 		"2:							\n"  in atomic_sub_if_positive()
198 		: "=&r" (result), "=&r" (temp), "+ZC" (v->counter)  in atomic_sub_if_positive()
202 		"1:	ll.w	%1, %2		# atomic_sub_if_positive\n"  in atomic_sub_if_positive()
205 		"	blt	%0, $zero, 2f				\n"  in atomic_sub_if_positive()
206 		"	sc.w	%1, %2					\n"  in atomic_sub_if_positive()
208 		"2:							\n"  in atomic_sub_if_positive()
210 		: "=&r" (result), "=&r" (temp), "+ZC" (v->counter)  in atomic_sub_if_positive()
217 #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))  argument
218 #define atomic_xchg(v, new) (xchg(&((v)->counter), (new)))  argument
222  * @v: pointer of type atomic_t
224 #define atomic_dec_if_positive(v)	atomic_sub_if_positive(1, v)  argument
232  * @v: pointer of type atomic64_t
235 #define atomic64_read(v)	READ_ONCE((v)->counter)  argument
239  * @v: pointer of type atomic64_t
242 #define atomic64_set(v, i)	WRITE_ONCE((v)->counter, (i))  argument
245 static __inline__ void atomic64_##op(long i, atomic64_t * v)		\
249 	: "+ZB" (v->counter)						\
255 static __inline__ long atomic64_##op##_return##suffix(long i, atomic64_t * v)	\
259 	"am"#asm_op#mb".d " " %1, %2, %0		\n"			\
260 	: "+ZB" (v->counter), "=&r" (result)					\
268 static __inline__ long atomic64_fetch_##op##suffix(long i, atomic64_t * v)	\
273 	"am"#asm_op#mb".d " " %1, %2, %0		\n"			\
274 	: "+ZB" (v->counter), "=&r" (result)					\
337 static __inline__ long atomic64_fetch_add_unless(atomic64_t *v, long a, long u)  in ATOMIC64_OPS()
347 		"	b	2f\n"  in ATOMIC64_OPS()
350 		"2:\n"  in ATOMIC64_OPS()
352 		  [c] "=ZB" (v->counter)  in ATOMIC64_OPS()
364  * @v: pointer of type atomic64_t
366  * Atomically test @v and subtract @i if @v is greater or equal than @i.
367  * The function returns the old value of @v minus @i.
369 static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)  in atomic64_sub_if_positive()  argument
376 		"1:	ll.d	%1, %2 	# atomic64_sub_if_positive	\n"  in atomic64_sub_if_positive()
379 		"	blt	%0, $zero, 2f				\n"  in atomic64_sub_if_positive()
380 		"	sc.d	%1, %2					\n"  in atomic64_sub_if_positive()
382 		"2:							\n"  in atomic64_sub_if_positive()
384 		: "=&r" (result), "=&r" (temp), "+ZC" (v->counter)  in atomic64_sub_if_positive()
388 		"1:	ll.d	%1, %2 	# atomic64_sub_if_positive	\n"  in atomic64_sub_if_positive()
391 		"	blt	%0, $zero, 2f				\n"  in atomic64_sub_if_positive()
392 		"	sc.d	%1, %2					\n"  in atomic64_sub_if_positive()
394 		"2:							\n"  in atomic64_sub_if_positive()
396 		: "=&r" (result), "=&r" (temp), "+ZC" (v->counter)  in atomic64_sub_if_positive()
403 #define atomic64_cmpxchg(v, o, n) \  argument
404 	((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
405 #define atomic64_xchg(v, new) (xchg(&((v)->counter), (new)))  argument
409  * @v: pointer of type atomic64_t
411 #define atomic64_dec_if_positive(v)	atomic64_sub_if_positive(1, v)  argument