26 static __inline__ int arch_atomic_read(const atomic_t *v)  in arch_atomic_read()  argument
30 	__asm__ __volatile__("lwz%U1%X1 %0,%1" : "=r"(t) : "m"UPD_CONSTR(v->counter));  in arch_atomic_read()
35 static __inline__ void arch_atomic_set(atomic_t *v, int i)  in arch_atomic_set()  argument
37 	__asm__ __volatile__("stw%U0%X0 %1,%0" : "=m"UPD_CONSTR(v->counter) : "r"(i));  in arch_atomic_set()
41 static __inline__ void arch_atomic_##op(int a, atomic_t *v)		\
47 	#asm_op " %0,%2,%0\n"						\
50 	: "=&r" (t), "+m" (v->counter)					\
51 	: "r" (a), "r" (&v->counter)					\
56 static inline int arch_atomic_##op##_return_relaxed(int a, atomic_t *v)	\
62 	#asm_op " %0,%2,%0\n"						\
65 	: "=&r" (t), "+m" (v->counter)					\
66 	: "r" (a), "r" (&v->counter)					\
73 static inline int arch_atomic_fetch_##op##_relaxed(int a, atomic_t *v)	\
82 	: "=&r" (res), "=&r" (t), "+m" (v->counter)			\
83 	: "r" (a), "r" (&v->counter)					\
121 static __inline__ void arch_atomic_inc(atomic_t *v)  in ATOMIC_OPS()
126 "1:	lwarx	%0,0,%2		# atomic_inc\n\  in ATOMIC_OPS()
128 "	stwcx.	%0,0,%2 \n\  in ATOMIC_OPS()
130 	: "=&r" (t), "+m" (v->counter)  in ATOMIC_OPS()
131 	: "r" (&v->counter)  in ATOMIC_OPS()
136 static __inline__ int arch_atomic_inc_return_relaxed(atomic_t *v)  in arch_atomic_inc_return_relaxed()  argument
141 "1:	lwarx	%0,0,%2		# atomic_inc_return_relaxed\n"  in arch_atomic_inc_return_relaxed()
143 "	stwcx.	%0,0,%2\n"  in arch_atomic_inc_return_relaxed()
145 	: "=&r" (t), "+m" (v->counter)  in arch_atomic_inc_return_relaxed()
146 	: "r" (&v->counter)  in arch_atomic_inc_return_relaxed()
152 static __inline__ void arch_atomic_dec(atomic_t *v)  in arch_atomic_dec()  argument
157 "1:	lwarx	%0,0,%2		# atomic_dec\n\  in arch_atomic_dec()
159 "	stwcx.	%0,0,%2\n\  in arch_atomic_dec()
161 	: "=&r" (t), "+m" (v->counter)  in arch_atomic_dec()
162 	: "r" (&v->counter)  in arch_atomic_dec()
167 static __inline__ int arch_atomic_dec_return_relaxed(atomic_t *v)  in arch_atomic_dec_return_relaxed()  argument
172 "1:	lwarx	%0,0,%2		# atomic_dec_return_relaxed\n"  in arch_atomic_dec_return_relaxed()
174 "	stwcx.	%0,0,%2\n"  in arch_atomic_dec_return_relaxed()
176 	: "=&r" (t), "+m" (v->counter)  in arch_atomic_dec_return_relaxed()
177 	: "r" (&v->counter)  in arch_atomic_dec_return_relaxed()
186 #define arch_atomic_cmpxchg(v, o, n) \  argument
187 	(arch_cmpxchg(&((v)->counter), (o), (n)))
188 #define arch_atomic_cmpxchg_relaxed(v, o, n) \  argument
189 	arch_cmpxchg_relaxed(&((v)->counter), (o), (n))
190 #define arch_atomic_cmpxchg_acquire(v, o, n) \  argument
191 	arch_cmpxchg_acquire(&((v)->counter), (o), (n))
193 #define arch_atomic_xchg(v, new) \  argument
194 	(arch_xchg(&((v)->counter), new))
195 #define arch_atomic_xchg_relaxed(v, new) \  argument
196 	arch_xchg_relaxed(&((v)->counter), (new))
205 arch_atomic_try_cmpxchg_lock(atomic_t *v, int *old, int new)  in arch_atomic_try_cmpxchg_lock()  argument
210 "1:	lwarx	%0,0,%2,%5	# atomic_try_cmpxchg_acquire		\n"  in arch_atomic_try_cmpxchg_lock()
212 "	bne-	2f							\n"  in arch_atomic_try_cmpxchg_lock()
213 "	stwcx.	%4,0,%2							\n"  in arch_atomic_try_cmpxchg_lock()
216 "2:									\n"  in arch_atomic_try_cmpxchg_lock()
217 	: "=&r" (r), "+m" (v->counter)  in arch_atomic_try_cmpxchg_lock()
218 	: "r" (&v->counter), "r" (o), "r" (new), "i" (IS_ENABLED(CONFIG_PPC64) ? 1 : 0)  in arch_atomic_try_cmpxchg_lock()
228  * @v: pointer of type atomic_t
229  * @a: the amount to add to v...
230  * @u: ...unless v is equal to u.
232  * Atomically adds @a to @v, so long as it was not @u.
233  * Returns the old value of @v.
235 static __inline__ int arch_atomic_fetch_add_unless(atomic_t *v, int a, int u)  in arch_atomic_fetch_add_unless()  argument
243 	beq	2f \n\  in arch_atomic_fetch_add_unless()
244 	add	%0,%2,%0 \n"  in arch_atomic_fetch_add_unless()
248 "	subf	%0,%2,%0 \n\  in arch_atomic_fetch_add_unless()
249 2:"  in arch_atomic_fetch_add_unless()
251 	: "r" (&v->counter), "r" (a), "r" (u)  in arch_atomic_fetch_add_unless()
260  * @v: pointer of type atomic_t
262  * Atomically increments @v by 1, so long as @v is non-zero.
263  * Returns non-zero if @v was non-zero, and zero otherwise.
265 static __inline__ int arch_atomic_inc_not_zero(atomic_t *v)  in arch_atomic_inc_not_zero()  argument
271 "1:	lwarx	%0,0,%2		# atomic_inc_not_zero\n\  in arch_atomic_inc_not_zero()
273 	beq-	2f\n\  in arch_atomic_inc_not_zero()
275 "	stwcx.	%1,0,%2\n\  in arch_atomic_inc_not_zero()
279 2:"  in arch_atomic_inc_not_zero()
281 	: "r" (&v->counter)  in arch_atomic_inc_not_zero()
286 #define arch_atomic_inc_not_zero(v) arch_atomic_inc_not_zero((v))  argument
289  * Atomically test *v and decrement if it is greater than 0.
290  * The function returns the old value of *v minus 1, even if
291  * the atomic variable, v, was not decremented.
293 static __inline__ int arch_atomic_dec_if_positive(atomic_t *v)  in arch_atomic_dec_if_positive()  argument
302 	blt-	2f\n"  in arch_atomic_dec_if_positive()
307 2:"	: "=&b" (t)  in arch_atomic_dec_if_positive()
308 	: "r" (&v->counter)  in arch_atomic_dec_if_positive()
319 static __inline__ s64 arch_atomic64_read(const atomic64_t *v)  in arch_atomic64_read()  argument
323 	__asm__ __volatile__("ld%U1%X1 %0,%1" : "=r"(t) : "m"UPD_CONSTR(v->counter));  in arch_atomic64_read()
328 static __inline__ void arch_atomic64_set(atomic64_t *v, s64 i)  in arch_atomic64_set()  argument
330 	__asm__ __volatile__("std%U0%X0 %1,%0" : "=m"UPD_CONSTR(v->counter) : "r"(i));  in arch_atomic64_set()
334 static __inline__ void arch_atomic64_##op(s64 a, atomic64_t *v)		\
340 	#asm_op " %0,%2,%0\n"						\
343 	: "=&r" (t), "+m" (v->counter)					\
344 	: "r" (a), "r" (&v->counter)					\
350 arch_atomic64_##op##_return_relaxed(s64 a, atomic64_t *v)		\
356 	#asm_op " %0,%2,%0\n"						\
359 	: "=&r" (t), "+m" (v->counter)					\
360 	: "r" (a), "r" (&v->counter)					\
368 arch_atomic64_fetch_##op##_relaxed(s64 a, atomic64_t *v)		\
377 	: "=&r" (res), "=&r" (t), "+m" (v->counter)			\
378 	: "r" (a), "r" (&v->counter)					\
416 static __inline__ void arch_atomic64_inc(atomic64_t *v)  in ATOMIC64_OPS()
421 "1:	ldarx	%0,0,%2		# atomic64_inc\n\  in ATOMIC64_OPS()
423 	stdcx.	%0,0,%2 \n\  in ATOMIC64_OPS()
425 	: "=&r" (t), "+m" (v->counter)  in ATOMIC64_OPS()
426 	: "r" (&v->counter)  in ATOMIC64_OPS()
431 static __inline__ s64 arch_atomic64_inc_return_relaxed(atomic64_t *v)  in arch_atomic64_inc_return_relaxed()  argument
436 "1:	ldarx	%0,0,%2		# atomic64_inc_return_relaxed\n"  in arch_atomic64_inc_return_relaxed()
438 "	stdcx.	%0,0,%2\n"  in arch_atomic64_inc_return_relaxed()
440 	: "=&r" (t), "+m" (v->counter)  in arch_atomic64_inc_return_relaxed()
441 	: "r" (&v->counter)  in arch_atomic64_inc_return_relaxed()
447 static __inline__ void arch_atomic64_dec(atomic64_t *v)  in arch_atomic64_dec()  argument
452 "1:	ldarx	%0,0,%2		# atomic64_dec\n\  in arch_atomic64_dec()
454 	stdcx.	%0,0,%2\n\  in arch_atomic64_dec()
456 	: "=&r" (t), "+m" (v->counter)  in arch_atomic64_dec()
457 	: "r" (&v->counter)  in arch_atomic64_dec()
462 static __inline__ s64 arch_atomic64_dec_return_relaxed(atomic64_t *v)  in arch_atomic64_dec_return_relaxed()  argument
467 "1:	ldarx	%0,0,%2		# atomic64_dec_return_relaxed\n"  in arch_atomic64_dec_return_relaxed()
469 "	stdcx.	%0,0,%2\n"  in arch_atomic64_dec_return_relaxed()
471 	: "=&r" (t), "+m" (v->counter)  in arch_atomic64_dec_return_relaxed()
472 	: "r" (&v->counter)  in arch_atomic64_dec_return_relaxed()
482  * Atomically test *v and decrement if it is greater than 0.
483  * The function returns the old value of *v minus 1.
485 static __inline__ s64 arch_atomic64_dec_if_positive(atomic64_t *v)  in arch_atomic64_dec_if_positive()  argument
493 	blt-	2f\n\  in arch_atomic64_dec_if_positive()
498 2:"	: "=&r" (t)  in arch_atomic64_dec_if_positive()
499 	: "r" (&v->counter)  in arch_atomic64_dec_if_positive()
506 #define arch_atomic64_cmpxchg(v, o, n) \  argument
507 	(arch_cmpxchg(&((v)->counter), (o), (n)))
508 #define arch_atomic64_cmpxchg_relaxed(v, o, n) \  argument
509 	arch_cmpxchg_relaxed(&((v)->counter), (o), (n))
510 #define arch_atomic64_cmpxchg_acquire(v, o, n) \  argument
511 	arch_cmpxchg_acquire(&((v)->counter), (o), (n))
513 #define arch_atomic64_xchg(v, new) \  argument
514 	(arch_xchg(&((v)->counter), new))
515 #define arch_atomic64_xchg_relaxed(v, new) \  argument
516 	arch_xchg_relaxed(&((v)->counter), (new))
520  * @v: pointer of type atomic64_t
521  * @a: the amount to add to v...
522  * @u: ...unless v is equal to u.
524  * Atomically adds @a to @v, so long as it was not @u.
525  * Returns the old value of @v.
527 static __inline__ s64 arch_atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u)  in arch_atomic64_fetch_add_unless()  argument
535 	beq	2f \n\  in arch_atomic64_fetch_add_unless()
536 	add	%0,%2,%0 \n"  in arch_atomic64_fetch_add_unless()
540 "	subf	%0,%2,%0 \n\  in arch_atomic64_fetch_add_unless()
541 2:"  in arch_atomic64_fetch_add_unless()
543 	: "r" (&v->counter), "r" (a), "r" (u)  in arch_atomic64_fetch_add_unless()
552  * @v: pointer of type atomic64_t
554  * Atomically increments @v by 1, so long as @v is non-zero.
555  * Returns non-zero if @v was non-zero, and zero otherwise.
557 static __inline__ int arch_atomic64_inc_not_zero(atomic64_t *v)  in arch_atomic64_inc_not_zero()  argument
563 "1:	ldarx	%0,0,%2		# atomic64_inc_not_zero\n\  in arch_atomic64_inc_not_zero()
565 	beq-	2f\n\  in arch_atomic64_inc_not_zero()
567 	stdcx.	%1,0,%2\n\  in arch_atomic64_inc_not_zero()
571 2:"  in arch_atomic64_inc_not_zero()
573 	: "r" (&v->counter)  in arch_atomic64_inc_not_zero()
578 #define arch_atomic64_inc_not_zero(v) arch_atomic64_inc_not_zero((v))  argument