~hc/RK356X_SDK_RELEASE.git

..	..	@@ -25,13 +25,11 @@
25	25	* See Documentation/memory-barriers.txt for ACQUIRE/RELEASE definitions.
26	26	*/
27	27
28		-#ifndef atomic_read_acquire
29		-#define atomic_read_acquire(v) smp_load_acquire(&(v)->counter)
30		-#endif
	28	+#define atomic_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c))
	29	+#define atomic_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c))
31	30
32		-#ifndef atomic_set_release
33		-#define atomic_set_release(v, i) smp_store_release(&(v)->counter, (i))
34		-#endif
	31	+#define atomic64_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c))
	32	+#define atomic64_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c))
35	33
36	34	/*
37	35	* The idea here is to build acquire/release variants by adding explicit
..	..	@@ -79,1238 +77,12 @@
79	77	__ret; \
80	78	})
81	79
82		-/* atomic_add_return_relaxed */
83		-#ifndef atomic_add_return_relaxed
84		-#define atomic_add_return_relaxed atomic_add_return
85		-#define atomic_add_return_acquire atomic_add_return
86		-#define atomic_add_return_release atomic_add_return
87		-
88		-#else /* atomic_add_return_relaxed */
89		-
90		-#ifndef atomic_add_return_acquire
91		-#define atomic_add_return_acquire(...) \
92		- __atomic_op_acquire(atomic_add_return, __VA_ARGS__)
93		-#endif
94		-
95		-#ifndef atomic_add_return_release
96		-#define atomic_add_return_release(...) \
97		- __atomic_op_release(atomic_add_return, __VA_ARGS__)
98		-#endif
99		-
100		-#ifndef atomic_add_return
101		-#define atomic_add_return(...) \
102		- __atomic_op_fence(atomic_add_return, __VA_ARGS__)
103		-#endif
104		-#endif /* atomic_add_return_relaxed */
105		-
106		-#ifndef atomic_inc
107		-#define atomic_inc(v) atomic_add(1, (v))
108		-#endif
109		-
110		-/* atomic_inc_return_relaxed */
111		-#ifndef atomic_inc_return_relaxed
112		-
113		-#ifndef atomic_inc_return
114		-#define atomic_inc_return(v) atomic_add_return(1, (v))
115		-#define atomic_inc_return_relaxed(v) atomic_add_return_relaxed(1, (v))
116		-#define atomic_inc_return_acquire(v) atomic_add_return_acquire(1, (v))
117		-#define atomic_inc_return_release(v) atomic_add_return_release(1, (v))
118		-#else /* atomic_inc_return */
119		-#define atomic_inc_return_relaxed atomic_inc_return
120		-#define atomic_inc_return_acquire atomic_inc_return
121		-#define atomic_inc_return_release atomic_inc_return
122		-#endif /* atomic_inc_return */
123		-
124		-#else /* atomic_inc_return_relaxed */
125		-
126		-#ifndef atomic_inc_return_acquire
127		-#define atomic_inc_return_acquire(...) \
128		- __atomic_op_acquire(atomic_inc_return, __VA_ARGS__)
129		-#endif
130		-
131		-#ifndef atomic_inc_return_release
132		-#define atomic_inc_return_release(...) \
133		- __atomic_op_release(atomic_inc_return, __VA_ARGS__)
134		-#endif
135		-
136		-#ifndef atomic_inc_return
137		-#define atomic_inc_return(...) \
138		- __atomic_op_fence(atomic_inc_return, __VA_ARGS__)
139		-#endif
140		-#endif /* atomic_inc_return_relaxed */
141		-
142		-/* atomic_sub_return_relaxed */
143		-#ifndef atomic_sub_return_relaxed
144		-#define atomic_sub_return_relaxed atomic_sub_return
145		-#define atomic_sub_return_acquire atomic_sub_return
146		-#define atomic_sub_return_release atomic_sub_return
147		-
148		-#else /* atomic_sub_return_relaxed */
149		-
150		-#ifndef atomic_sub_return_acquire
151		-#define atomic_sub_return_acquire(...) \
152		- __atomic_op_acquire(atomic_sub_return, __VA_ARGS__)
153		-#endif
154		-
155		-#ifndef atomic_sub_return_release
156		-#define atomic_sub_return_release(...) \
157		- __atomic_op_release(atomic_sub_return, __VA_ARGS__)
158		-#endif
159		-
160		-#ifndef atomic_sub_return
161		-#define atomic_sub_return(...) \
162		- __atomic_op_fence(atomic_sub_return, __VA_ARGS__)
163		-#endif
164		-#endif /* atomic_sub_return_relaxed */
165		-
166		-#ifndef atomic_dec
167		-#define atomic_dec(v) atomic_sub(1, (v))
168		-#endif
169		-
170		-/* atomic_dec_return_relaxed */
171		-#ifndef atomic_dec_return_relaxed
172		-
173		-#ifndef atomic_dec_return
174		-#define atomic_dec_return(v) atomic_sub_return(1, (v))
175		-#define atomic_dec_return_relaxed(v) atomic_sub_return_relaxed(1, (v))
176		-#define atomic_dec_return_acquire(v) atomic_sub_return_acquire(1, (v))
177		-#define atomic_dec_return_release(v) atomic_sub_return_release(1, (v))
178		-#else /* atomic_dec_return */
179		-#define atomic_dec_return_relaxed atomic_dec_return
180		-#define atomic_dec_return_acquire atomic_dec_return
181		-#define atomic_dec_return_release atomic_dec_return
182		-#endif /* atomic_dec_return */
183		-
184		-#else /* atomic_dec_return_relaxed */
185		-
186		-#ifndef atomic_dec_return_acquire
187		-#define atomic_dec_return_acquire(...) \
188		- __atomic_op_acquire(atomic_dec_return, __VA_ARGS__)
189		-#endif
190		-
191		-#ifndef atomic_dec_return_release
192		-#define atomic_dec_return_release(...) \
193		- __atomic_op_release(atomic_dec_return, __VA_ARGS__)
194		-#endif
195		-
196		-#ifndef atomic_dec_return
197		-#define atomic_dec_return(...) \
198		- __atomic_op_fence(atomic_dec_return, __VA_ARGS__)
199		-#endif
200		-#endif /* atomic_dec_return_relaxed */
201		-
202		-
203		-/* atomic_fetch_add_relaxed */
204		-#ifndef atomic_fetch_add_relaxed
205		-#define atomic_fetch_add_relaxed atomic_fetch_add
206		-#define atomic_fetch_add_acquire atomic_fetch_add
207		-#define atomic_fetch_add_release atomic_fetch_add
208		-
209		-#else /* atomic_fetch_add_relaxed */
210		-
211		-#ifndef atomic_fetch_add_acquire
212		-#define atomic_fetch_add_acquire(...) \
213		- __atomic_op_acquire(atomic_fetch_add, __VA_ARGS__)
214		-#endif
215		-
216		-#ifndef atomic_fetch_add_release
217		-#define atomic_fetch_add_release(...) \
218		- __atomic_op_release(atomic_fetch_add, __VA_ARGS__)
219		-#endif
220		-
221		-#ifndef atomic_fetch_add
222		-#define atomic_fetch_add(...) \
223		- __atomic_op_fence(atomic_fetch_add, __VA_ARGS__)
224		-#endif
225		-#endif /* atomic_fetch_add_relaxed */
226		-
227		-/* atomic_fetch_inc_relaxed */
228		-#ifndef atomic_fetch_inc_relaxed
229		-
230		-#ifndef atomic_fetch_inc
231		-#define atomic_fetch_inc(v) atomic_fetch_add(1, (v))
232		-#define atomic_fetch_inc_relaxed(v) atomic_fetch_add_relaxed(1, (v))
233		-#define atomic_fetch_inc_acquire(v) atomic_fetch_add_acquire(1, (v))
234		-#define atomic_fetch_inc_release(v) atomic_fetch_add_release(1, (v))
235		-#else /* atomic_fetch_inc */
236		-#define atomic_fetch_inc_relaxed atomic_fetch_inc
237		-#define atomic_fetch_inc_acquire atomic_fetch_inc
238		-#define atomic_fetch_inc_release atomic_fetch_inc
239		-#endif /* atomic_fetch_inc */
240		-
241		-#else /* atomic_fetch_inc_relaxed */
242		-
243		-#ifndef atomic_fetch_inc_acquire
244		-#define atomic_fetch_inc_acquire(...) \
245		- __atomic_op_acquire(atomic_fetch_inc, __VA_ARGS__)
246		-#endif
247		-
248		-#ifndef atomic_fetch_inc_release
249		-#define atomic_fetch_inc_release(...) \
250		- __atomic_op_release(atomic_fetch_inc, __VA_ARGS__)
251		-#endif
252		-
253		-#ifndef atomic_fetch_inc
254		-#define atomic_fetch_inc(...) \
255		- __atomic_op_fence(atomic_fetch_inc, __VA_ARGS__)
256		-#endif
257		-#endif /* atomic_fetch_inc_relaxed */
258		-
259		-/* atomic_fetch_sub_relaxed */
260		-#ifndef atomic_fetch_sub_relaxed
261		-#define atomic_fetch_sub_relaxed atomic_fetch_sub
262		-#define atomic_fetch_sub_acquire atomic_fetch_sub
263		-#define atomic_fetch_sub_release atomic_fetch_sub
264		-
265		-#else /* atomic_fetch_sub_relaxed */
266		-
267		-#ifndef atomic_fetch_sub_acquire
268		-#define atomic_fetch_sub_acquire(...) \
269		- __atomic_op_acquire(atomic_fetch_sub, __VA_ARGS__)
270		-#endif
271		-
272		-#ifndef atomic_fetch_sub_release
273		-#define atomic_fetch_sub_release(...) \
274		- __atomic_op_release(atomic_fetch_sub, __VA_ARGS__)
275		-#endif
276		-
277		-#ifndef atomic_fetch_sub
278		-#define atomic_fetch_sub(...) \
279		- __atomic_op_fence(atomic_fetch_sub, __VA_ARGS__)
280		-#endif
281		-#endif /* atomic_fetch_sub_relaxed */
282		-
283		-/* atomic_fetch_dec_relaxed */
284		-#ifndef atomic_fetch_dec_relaxed
285		-
286		-#ifndef atomic_fetch_dec
287		-#define atomic_fetch_dec(v) atomic_fetch_sub(1, (v))
288		-#define atomic_fetch_dec_relaxed(v) atomic_fetch_sub_relaxed(1, (v))
289		-#define atomic_fetch_dec_acquire(v) atomic_fetch_sub_acquire(1, (v))
290		-#define atomic_fetch_dec_release(v) atomic_fetch_sub_release(1, (v))
291		-#else /* atomic_fetch_dec */
292		-#define atomic_fetch_dec_relaxed atomic_fetch_dec
293		-#define atomic_fetch_dec_acquire atomic_fetch_dec
294		-#define atomic_fetch_dec_release atomic_fetch_dec
295		-#endif /* atomic_fetch_dec */
296		-
297		-#else /* atomic_fetch_dec_relaxed */
298		-
299		-#ifndef atomic_fetch_dec_acquire
300		-#define atomic_fetch_dec_acquire(...) \
301		- __atomic_op_acquire(atomic_fetch_dec, __VA_ARGS__)
302		-#endif
303		-
304		-#ifndef atomic_fetch_dec_release
305		-#define atomic_fetch_dec_release(...) \
306		- __atomic_op_release(atomic_fetch_dec, __VA_ARGS__)
307		-#endif
308		-
309		-#ifndef atomic_fetch_dec
310		-#define atomic_fetch_dec(...) \
311		- __atomic_op_fence(atomic_fetch_dec, __VA_ARGS__)
312		-#endif
313		-#endif /* atomic_fetch_dec_relaxed */
314		-
315		-/* atomic_fetch_or_relaxed */
316		-#ifndef atomic_fetch_or_relaxed
317		-#define atomic_fetch_or_relaxed atomic_fetch_or
318		-#define atomic_fetch_or_acquire atomic_fetch_or
319		-#define atomic_fetch_or_release atomic_fetch_or
320		-
321		-#else /* atomic_fetch_or_relaxed */
322		-
323		-#ifndef atomic_fetch_or_acquire
324		-#define atomic_fetch_or_acquire(...) \
325		- __atomic_op_acquire(atomic_fetch_or, __VA_ARGS__)
326		-#endif
327		-
328		-#ifndef atomic_fetch_or_release
329		-#define atomic_fetch_or_release(...) \
330		- __atomic_op_release(atomic_fetch_or, __VA_ARGS__)
331		-#endif
332		-
333		-#ifndef atomic_fetch_or
334		-#define atomic_fetch_or(...) \
335		- __atomic_op_fence(atomic_fetch_or, __VA_ARGS__)
336		-#endif
337		-#endif /* atomic_fetch_or_relaxed */
338		-
339		-/* atomic_fetch_and_relaxed */
340		-#ifndef atomic_fetch_and_relaxed
341		-#define atomic_fetch_and_relaxed atomic_fetch_and
342		-#define atomic_fetch_and_acquire atomic_fetch_and
343		-#define atomic_fetch_and_release atomic_fetch_and
344		-
345		-#else /* atomic_fetch_and_relaxed */
346		-
347		-#ifndef atomic_fetch_and_acquire
348		-#define atomic_fetch_and_acquire(...) \
349		- __atomic_op_acquire(atomic_fetch_and, __VA_ARGS__)
350		-#endif
351		-
352		-#ifndef atomic_fetch_and_release
353		-#define atomic_fetch_and_release(...) \
354		- __atomic_op_release(atomic_fetch_and, __VA_ARGS__)
355		-#endif
356		-
357		-#ifndef atomic_fetch_and
358		-#define atomic_fetch_and(...) \
359		- __atomic_op_fence(atomic_fetch_and, __VA_ARGS__)
360		-#endif
361		-#endif /* atomic_fetch_and_relaxed */
362		-
363		-#ifndef atomic_andnot
364		-#define atomic_andnot(i, v) atomic_and(~(int)(i), (v))
365		-#endif
366		-
367		-#ifndef atomic_fetch_andnot_relaxed
368		-
369		-#ifndef atomic_fetch_andnot
370		-#define atomic_fetch_andnot(i, v) atomic_fetch_and(~(int)(i), (v))
371		-#define atomic_fetch_andnot_relaxed(i, v) atomic_fetch_and_relaxed(~(int)(i), (v))
372		-#define atomic_fetch_andnot_acquire(i, v) atomic_fetch_and_acquire(~(int)(i), (v))
373		-#define atomic_fetch_andnot_release(i, v) atomic_fetch_and_release(~(int)(i), (v))
374		-#else /* atomic_fetch_andnot */
375		-#define atomic_fetch_andnot_relaxed atomic_fetch_andnot
376		-#define atomic_fetch_andnot_acquire atomic_fetch_andnot
377		-#define atomic_fetch_andnot_release atomic_fetch_andnot
378		-#endif /* atomic_fetch_andnot */
379		-
380		-#else /* atomic_fetch_andnot_relaxed */
381		-
382		-#ifndef atomic_fetch_andnot_acquire
383		-#define atomic_fetch_andnot_acquire(...) \
384		- __atomic_op_acquire(atomic_fetch_andnot, __VA_ARGS__)
385		-#endif
386		-
387		-#ifndef atomic_fetch_andnot_release
388		-#define atomic_fetch_andnot_release(...) \
389		- __atomic_op_release(atomic_fetch_andnot, __VA_ARGS__)
390		-#endif
391		-
392		-#ifndef atomic_fetch_andnot
393		-#define atomic_fetch_andnot(...) \
394		- __atomic_op_fence(atomic_fetch_andnot, __VA_ARGS__)
395		-#endif
396		-#endif /* atomic_fetch_andnot_relaxed */
397		-
398		-/* atomic_fetch_xor_relaxed */
399		-#ifndef atomic_fetch_xor_relaxed
400		-#define atomic_fetch_xor_relaxed atomic_fetch_xor
401		-#define atomic_fetch_xor_acquire atomic_fetch_xor
402		-#define atomic_fetch_xor_release atomic_fetch_xor
403		-
404		-#else /* atomic_fetch_xor_relaxed */
405		-
406		-#ifndef atomic_fetch_xor_acquire
407		-#define atomic_fetch_xor_acquire(...) \
408		- __atomic_op_acquire(atomic_fetch_xor, __VA_ARGS__)
409		-#endif
410		-
411		-#ifndef atomic_fetch_xor_release
412		-#define atomic_fetch_xor_release(...) \
413		- __atomic_op_release(atomic_fetch_xor, __VA_ARGS__)
414		-#endif
415		-
416		-#ifndef atomic_fetch_xor
417		-#define atomic_fetch_xor(...) \
418		- __atomic_op_fence(atomic_fetch_xor, __VA_ARGS__)
419		-#endif
420		-#endif /* atomic_fetch_xor_relaxed */
421		-
422		-
423		-/* atomic_xchg_relaxed */
424		-#ifndef atomic_xchg_relaxed
425		-#define atomic_xchg_relaxed atomic_xchg
426		-#define atomic_xchg_acquire atomic_xchg
427		-#define atomic_xchg_release atomic_xchg
428		-
429		-#else /* atomic_xchg_relaxed */
430		-
431		-#ifndef atomic_xchg_acquire
432		-#define atomic_xchg_acquire(...) \
433		- __atomic_op_acquire(atomic_xchg, __VA_ARGS__)
434		-#endif
435		-
436		-#ifndef atomic_xchg_release
437		-#define atomic_xchg_release(...) \
438		- __atomic_op_release(atomic_xchg, __VA_ARGS__)
439		-#endif
440		-
441		-#ifndef atomic_xchg
442		-#define atomic_xchg(...) \
443		- __atomic_op_fence(atomic_xchg, __VA_ARGS__)
444		-#endif
445		-#endif /* atomic_xchg_relaxed */
446		-
447		-/* atomic_cmpxchg_relaxed */
448		-#ifndef atomic_cmpxchg_relaxed
449		-#define atomic_cmpxchg_relaxed atomic_cmpxchg
450		-#define atomic_cmpxchg_acquire atomic_cmpxchg
451		-#define atomic_cmpxchg_release atomic_cmpxchg
452		-
453		-#else /* atomic_cmpxchg_relaxed */
454		-
455		-#ifndef atomic_cmpxchg_acquire
456		-#define atomic_cmpxchg_acquire(...) \
457		- __atomic_op_acquire(atomic_cmpxchg, __VA_ARGS__)
458		-#endif
459		-
460		-#ifndef atomic_cmpxchg_release
461		-#define atomic_cmpxchg_release(...) \
462		- __atomic_op_release(atomic_cmpxchg, __VA_ARGS__)
463		-#endif
464		-
465		-#ifndef atomic_cmpxchg
466		-#define atomic_cmpxchg(...) \
467		- __atomic_op_fence(atomic_cmpxchg, __VA_ARGS__)
468		-#endif
469		-#endif /* atomic_cmpxchg_relaxed */
470		-
471		-#ifndef atomic_try_cmpxchg
472		-
473		-#define __atomic_try_cmpxchg(type, _p, _po, _n) \
474		-({ \
475		- typeof(_po) __po = (_po); \
476		- typeof((_po)) __r, __o = __po; \
477		- __r = atomic_cmpxchg##type((_p), __o, (_n)); \
478		- if (unlikely(__r != __o)) \
479		- *__po = __r; \
480		- likely(__r == __o); \
481		-})
482		-
483		-#define atomic_try_cmpxchg(_p, _po, _n) __atomic_try_cmpxchg(, _p, _po, _n)
484		-#define atomic_try_cmpxchg_relaxed(_p, _po, _n) __atomic_try_cmpxchg(_relaxed, _p, _po, _n)
485		-#define atomic_try_cmpxchg_acquire(_p, _po, _n) __atomic_try_cmpxchg(_acquire, _p, _po, _n)
486		-#define atomic_try_cmpxchg_release(_p, _po, _n) __atomic_try_cmpxchg(_release, _p, _po, _n)
487		-
488		-#else /* atomic_try_cmpxchg */
489		-#define atomic_try_cmpxchg_relaxed atomic_try_cmpxchg
490		-#define atomic_try_cmpxchg_acquire atomic_try_cmpxchg
491		-#define atomic_try_cmpxchg_release atomic_try_cmpxchg
492		-#endif /* atomic_try_cmpxchg */
493		-
494		-/* cmpxchg_relaxed */
495		-#ifndef cmpxchg_relaxed
496		-#define cmpxchg_relaxed cmpxchg
497		-#define cmpxchg_acquire cmpxchg
498		-#define cmpxchg_release cmpxchg
499		-
500		-#else /* cmpxchg_relaxed */
501		-
502		-#ifndef cmpxchg_acquire
503		-#define cmpxchg_acquire(...) \
504		- __atomic_op_acquire(cmpxchg, __VA_ARGS__)
505		-#endif
506		-
507		-#ifndef cmpxchg_release
508		-#define cmpxchg_release(...) \
509		- __atomic_op_release(cmpxchg, __VA_ARGS__)
510		-#endif
511		-
512		-#ifndef cmpxchg
513		-#define cmpxchg(...) \
514		- __atomic_op_fence(cmpxchg, __VA_ARGS__)
515		-#endif
516		-#endif /* cmpxchg_relaxed */
517		-
518		-/* cmpxchg64_relaxed */
519		-#ifndef cmpxchg64_relaxed
520		-#define cmpxchg64_relaxed cmpxchg64
521		-#define cmpxchg64_acquire cmpxchg64
522		-#define cmpxchg64_release cmpxchg64
523		-
524		-#else /* cmpxchg64_relaxed */
525		-
526		-#ifndef cmpxchg64_acquire
527		-#define cmpxchg64_acquire(...) \
528		- __atomic_op_acquire(cmpxchg64, __VA_ARGS__)
529		-#endif
530		-
531		-#ifndef cmpxchg64_release
532		-#define cmpxchg64_release(...) \
533		- __atomic_op_release(cmpxchg64, __VA_ARGS__)
534		-#endif
535		-
536		-#ifndef cmpxchg64
537		-#define cmpxchg64(...) \
538		- __atomic_op_fence(cmpxchg64, __VA_ARGS__)
539		-#endif
540		-#endif /* cmpxchg64_relaxed */
541		-
542		-/* xchg_relaxed */
543		-#ifndef xchg_relaxed
544		-#define xchg_relaxed xchg
545		-#define xchg_acquire xchg
546		-#define xchg_release xchg
547		-
548		-#else /* xchg_relaxed */
549		-
550		-#ifndef xchg_acquire
551		-#define xchg_acquire(...) __atomic_op_acquire(xchg, __VA_ARGS__)
552		-#endif
553		-
554		-#ifndef xchg_release
555		-#define xchg_release(...) __atomic_op_release(xchg, __VA_ARGS__)
556		-#endif
557		-
558		-#ifndef xchg
559		-#define xchg(...) __atomic_op_fence(xchg, __VA_ARGS__)
560		-#endif
561		-#endif /* xchg_relaxed */
562		-
563		-/**
564		- * atomic_fetch_add_unless - add unless the number is already a given value
565		- * @v: pointer of type atomic_t
566		- * @a: the amount to add to v...
567		- * @u: ...unless v is equal to u.
568		- *
569		- * Atomically adds @a to @v, if @v was not already @u.
570		- * Returns the original value of @v.
571		- */
572		-#ifndef atomic_fetch_add_unless
573		-static inline int atomic_fetch_add_unless(atomic_t *v, int a, int u)
574		-{
575		- int c = atomic_read(v);
576		-
577		- do {
578		- if (unlikely(c == u))
579		- break;
580		- } while (!atomic_try_cmpxchg(v, &c, c + a));
581		-
582		- return c;
583		-}
584		-#endif
585		-
586		-/**
587		- * atomic_add_unless - add unless the number is already a given value
588		- * @v: pointer of type atomic_t
589		- * @a: the amount to add to v...
590		- * @u: ...unless v is equal to u.
591		- *
592		- * Atomically adds @a to @v, if @v was not already @u.
593		- * Returns true if the addition was done.
594		- */
595		-static inline bool atomic_add_unless(atomic_t *v, int a, int u)
596		-{
597		- return atomic_fetch_add_unless(v, a, u) != u;
598		-}
599		-
600		-/**
601		- * atomic_inc_not_zero - increment unless the number is zero
602		- * @v: pointer of type atomic_t
603		- *
604		- * Atomically increments @v by 1, if @v is non-zero.
605		- * Returns true if the increment was done.
606		- */
607		-#ifndef atomic_inc_not_zero
608		-#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
609		-#endif
610		-
611		-/**
612		- * atomic_inc_and_test - increment and test
613		- * @v: pointer of type atomic_t
614		- *
615		- * Atomically increments @v by 1
616		- * and returns true if the result is zero, or false for all
617		- * other cases.
618		- */
619		-#ifndef atomic_inc_and_test
620		-static inline bool atomic_inc_and_test(atomic_t *v)
621		-{
622		- return atomic_inc_return(v) == 0;
623		-}
624		-#endif
625		-
626		-/**
627		- * atomic_dec_and_test - decrement and test
628		- * @v: pointer of type atomic_t
629		- *
630		- * Atomically decrements @v by 1 and
631		- * returns true if the result is 0, or false for all other
632		- * cases.
633		- */
634		-#ifndef atomic_dec_and_test
635		-static inline bool atomic_dec_and_test(atomic_t *v)
636		-{
637		- return atomic_dec_return(v) == 0;
638		-}
639		-#endif
640		-
641		-/**
642		- * atomic_sub_and_test - subtract value from variable and test result
643		- * @i: integer value to subtract
644		- * @v: pointer of type atomic_t
645		- *
646		- * Atomically subtracts @i from @v and returns
647		- * true if the result is zero, or false for all
648		- * other cases.
649		- */
650		-#ifndef atomic_sub_and_test
651		-static inline bool atomic_sub_and_test(int i, atomic_t *v)
652		-{
653		- return atomic_sub_return(i, v) == 0;
654		-}
655		-#endif
656		-
657		-/**
658		- * atomic_add_negative - add and test if negative
659		- * @i: integer value to add
660		- * @v: pointer of type atomic_t
661		- *
662		- * Atomically adds @i to @v and returns true
663		- * if the result is negative, or false when
664		- * result is greater than or equal to zero.
665		- */
666		-#ifndef atomic_add_negative
667		-static inline bool atomic_add_negative(int i, atomic_t *v)
668		-{
669		- return atomic_add_return(i, v) < 0;
670		-}
671		-#endif
672		-
673		-#ifndef atomic_inc_unless_negative
674		-static inline bool atomic_inc_unless_negative(atomic_t *v)
675		-{
676		- int c = atomic_read(v);
677		-
678		- do {
679		- if (unlikely(c < 0))
680		- return false;
681		- } while (!atomic_try_cmpxchg(v, &c, c + 1));
682		-
683		- return true;
684		-}
685		-#endif
686		-
687		-#ifndef atomic_dec_unless_positive
688		-static inline bool atomic_dec_unless_positive(atomic_t *v)
689		-{
690		- int c = atomic_read(v);
691		-
692		- do {
693		- if (unlikely(c > 0))
694		- return false;
695		- } while (!atomic_try_cmpxchg(v, &c, c - 1));
696		-
697		- return true;
698		-}
699		-#endif
700		-
701		-/*
702		- * atomic_dec_if_positive - decrement by 1 if old value positive
703		- * @v: pointer of type atomic_t
704		- *
705		- * The function returns the old value of *v minus 1, even if
706		- * the atomic variable, v, was not decremented.
707		- */
708		-#ifndef atomic_dec_if_positive
709		-static inline int atomic_dec_if_positive(atomic_t *v)
710		-{
711		- int dec, c = atomic_read(v);
712		-
713		- do {
714		- dec = c - 1;
715		- if (unlikely(dec < 0))
716		- break;
717		- } while (!atomic_try_cmpxchg(v, &c, dec));
718		-
719		- return dec;
720		-}
721		-#endif
722		-
723		-#define atomic_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c))
724		-#define atomic_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c))
725		-
726		-#ifdef CONFIG_GENERIC_ATOMIC64
727		-#include <asm-generic/atomic64.h>
728		-#endif
729		-
730		-#ifndef atomic64_read_acquire
731		-#define atomic64_read_acquire(v) smp_load_acquire(&(v)->counter)
732		-#endif
733		-
734		-#ifndef atomic64_set_release
735		-#define atomic64_set_release(v, i) smp_store_release(&(v)->counter, (i))
736		-#endif
737		-
738		-/* atomic64_add_return_relaxed */
739		-#ifndef atomic64_add_return_relaxed
740		-#define atomic64_add_return_relaxed atomic64_add_return
741		-#define atomic64_add_return_acquire atomic64_add_return
742		-#define atomic64_add_return_release atomic64_add_return
743		-
744		-#else /* atomic64_add_return_relaxed */
745		-
746		-#ifndef atomic64_add_return_acquire
747		-#define atomic64_add_return_acquire(...) \
748		- __atomic_op_acquire(atomic64_add_return, __VA_ARGS__)
749		-#endif
750		-
751		-#ifndef atomic64_add_return_release
752		-#define atomic64_add_return_release(...) \
753		- __atomic_op_release(atomic64_add_return, __VA_ARGS__)
754		-#endif
755		-
756		-#ifndef atomic64_add_return
757		-#define atomic64_add_return(...) \
758		- __atomic_op_fence(atomic64_add_return, __VA_ARGS__)
759		-#endif
760		-#endif /* atomic64_add_return_relaxed */
761		-
762		-#ifndef atomic64_inc
763		-#define atomic64_inc(v) atomic64_add(1, (v))
764		-#endif
765		-
766		-/* atomic64_inc_return_relaxed */
767		-#ifndef atomic64_inc_return_relaxed
768		-
769		-#ifndef atomic64_inc_return
770		-#define atomic64_inc_return(v) atomic64_add_return(1, (v))
771		-#define atomic64_inc_return_relaxed(v) atomic64_add_return_relaxed(1, (v))
772		-#define atomic64_inc_return_acquire(v) atomic64_add_return_acquire(1, (v))
773		-#define atomic64_inc_return_release(v) atomic64_add_return_release(1, (v))
774		-#else /* atomic64_inc_return */
775		-#define atomic64_inc_return_relaxed atomic64_inc_return
776		-#define atomic64_inc_return_acquire atomic64_inc_return
777		-#define atomic64_inc_return_release atomic64_inc_return
778		-#endif /* atomic64_inc_return */
779		-
780		-#else /* atomic64_inc_return_relaxed */
781		-
782		-#ifndef atomic64_inc_return_acquire
783		-#define atomic64_inc_return_acquire(...) \
784		- __atomic_op_acquire(atomic64_inc_return, __VA_ARGS__)
785		-#endif
786		-
787		-#ifndef atomic64_inc_return_release
788		-#define atomic64_inc_return_release(...) \
789		- __atomic_op_release(atomic64_inc_return, __VA_ARGS__)
790		-#endif
791		-
792		-#ifndef atomic64_inc_return
793		-#define atomic64_inc_return(...) \
794		- __atomic_op_fence(atomic64_inc_return, __VA_ARGS__)
795		-#endif
796		-#endif /* atomic64_inc_return_relaxed */
797		-
798		-
799		-/* atomic64_sub_return_relaxed */
800		-#ifndef atomic64_sub_return_relaxed
801		-#define atomic64_sub_return_relaxed atomic64_sub_return
802		-#define atomic64_sub_return_acquire atomic64_sub_return
803		-#define atomic64_sub_return_release atomic64_sub_return
804		-
805		-#else /* atomic64_sub_return_relaxed */
806		-
807		-#ifndef atomic64_sub_return_acquire
808		-#define atomic64_sub_return_acquire(...) \
809		- __atomic_op_acquire(atomic64_sub_return, __VA_ARGS__)
810		-#endif
811		-
812		-#ifndef atomic64_sub_return_release
813		-#define atomic64_sub_return_release(...) \
814		- __atomic_op_release(atomic64_sub_return, __VA_ARGS__)
815		-#endif
816		-
817		-#ifndef atomic64_sub_return
818		-#define atomic64_sub_return(...) \
819		- __atomic_op_fence(atomic64_sub_return, __VA_ARGS__)
820		-#endif
821		-#endif /* atomic64_sub_return_relaxed */
822		-
823		-#ifndef atomic64_dec
824		-#define atomic64_dec(v) atomic64_sub(1, (v))
825		-#endif
826		-
827		-/* atomic64_dec_return_relaxed */
828		-#ifndef atomic64_dec_return_relaxed
829		-
830		-#ifndef atomic64_dec_return
831		-#define atomic64_dec_return(v) atomic64_sub_return(1, (v))
832		-#define atomic64_dec_return_relaxed(v) atomic64_sub_return_relaxed(1, (v))
833		-#define atomic64_dec_return_acquire(v) atomic64_sub_return_acquire(1, (v))
834		-#define atomic64_dec_return_release(v) atomic64_sub_return_release(1, (v))
835		-#else /* atomic64_dec_return */
836		-#define atomic64_dec_return_relaxed atomic64_dec_return
837		-#define atomic64_dec_return_acquire atomic64_dec_return
838		-#define atomic64_dec_return_release atomic64_dec_return
839		-#endif /* atomic64_dec_return */
840		-
841		-#else /* atomic64_dec_return_relaxed */
842		-
843		-#ifndef atomic64_dec_return_acquire
844		-#define atomic64_dec_return_acquire(...) \
845		- __atomic_op_acquire(atomic64_dec_return, __VA_ARGS__)
846		-#endif
847		-
848		-#ifndef atomic64_dec_return_release
849		-#define atomic64_dec_return_release(...) \
850		- __atomic_op_release(atomic64_dec_return, __VA_ARGS__)
851		-#endif
852		-
853		-#ifndef atomic64_dec_return
854		-#define atomic64_dec_return(...) \
855		- __atomic_op_fence(atomic64_dec_return, __VA_ARGS__)
856		-#endif
857		-#endif /* atomic64_dec_return_relaxed */
858		-
859		-
860		-/* atomic64_fetch_add_relaxed */
861		-#ifndef atomic64_fetch_add_relaxed
862		-#define atomic64_fetch_add_relaxed atomic64_fetch_add
863		-#define atomic64_fetch_add_acquire atomic64_fetch_add
864		-#define atomic64_fetch_add_release atomic64_fetch_add
865		-
866		-#else /* atomic64_fetch_add_relaxed */
867		-
868		-#ifndef atomic64_fetch_add_acquire
869		-#define atomic64_fetch_add_acquire(...) \
870		- __atomic_op_acquire(atomic64_fetch_add, __VA_ARGS__)
871		-#endif
872		-
873		-#ifndef atomic64_fetch_add_release
874		-#define atomic64_fetch_add_release(...) \
875		- __atomic_op_release(atomic64_fetch_add, __VA_ARGS__)
876		-#endif
877		-
878		-#ifndef atomic64_fetch_add
879		-#define atomic64_fetch_add(...) \
880		- __atomic_op_fence(atomic64_fetch_add, __VA_ARGS__)
881		-#endif
882		-#endif /* atomic64_fetch_add_relaxed */
883		-
884		-/* atomic64_fetch_inc_relaxed */
885		-#ifndef atomic64_fetch_inc_relaxed
886		-
887		-#ifndef atomic64_fetch_inc
888		-#define atomic64_fetch_inc(v) atomic64_fetch_add(1, (v))
889		-#define atomic64_fetch_inc_relaxed(v) atomic64_fetch_add_relaxed(1, (v))
890		-#define atomic64_fetch_inc_acquire(v) atomic64_fetch_add_acquire(1, (v))
891		-#define atomic64_fetch_inc_release(v) atomic64_fetch_add_release(1, (v))
892		-#else /* atomic64_fetch_inc */
893		-#define atomic64_fetch_inc_relaxed atomic64_fetch_inc
894		-#define atomic64_fetch_inc_acquire atomic64_fetch_inc
895		-#define atomic64_fetch_inc_release atomic64_fetch_inc
896		-#endif /* atomic64_fetch_inc */
897		-
898		-#else /* atomic64_fetch_inc_relaxed */
899		-
900		-#ifndef atomic64_fetch_inc_acquire
901		-#define atomic64_fetch_inc_acquire(...) \
902		- __atomic_op_acquire(atomic64_fetch_inc, __VA_ARGS__)
903		-#endif
904		-
905		-#ifndef atomic64_fetch_inc_release
906		-#define atomic64_fetch_inc_release(...) \
907		- __atomic_op_release(atomic64_fetch_inc, __VA_ARGS__)
908		-#endif
909		-
910		-#ifndef atomic64_fetch_inc
911		-#define atomic64_fetch_inc(...) \
912		- __atomic_op_fence(atomic64_fetch_inc, __VA_ARGS__)
913		-#endif
914		-#endif /* atomic64_fetch_inc_relaxed */
915		-
916		-/* atomic64_fetch_sub_relaxed */
917		-#ifndef atomic64_fetch_sub_relaxed
918		-#define atomic64_fetch_sub_relaxed atomic64_fetch_sub
919		-#define atomic64_fetch_sub_acquire atomic64_fetch_sub
920		-#define atomic64_fetch_sub_release atomic64_fetch_sub
921		-
922		-#else /* atomic64_fetch_sub_relaxed */
923		-
924		-#ifndef atomic64_fetch_sub_acquire
925		-#define atomic64_fetch_sub_acquire(...) \
926		- __atomic_op_acquire(atomic64_fetch_sub, __VA_ARGS__)
927		-#endif
928		-
929		-#ifndef atomic64_fetch_sub_release
930		-#define atomic64_fetch_sub_release(...) \
931		- __atomic_op_release(atomic64_fetch_sub, __VA_ARGS__)
932		-#endif
933		-
934		-#ifndef atomic64_fetch_sub
935		-#define atomic64_fetch_sub(...) \
936		- __atomic_op_fence(atomic64_fetch_sub, __VA_ARGS__)
937		-#endif
938		-#endif /* atomic64_fetch_sub_relaxed */
939		-
940		-/* atomic64_fetch_dec_relaxed */
941		-#ifndef atomic64_fetch_dec_relaxed
942		-
943		-#ifndef atomic64_fetch_dec
944		-#define atomic64_fetch_dec(v) atomic64_fetch_sub(1, (v))
945		-#define atomic64_fetch_dec_relaxed(v) atomic64_fetch_sub_relaxed(1, (v))
946		-#define atomic64_fetch_dec_acquire(v) atomic64_fetch_sub_acquire(1, (v))
947		-#define atomic64_fetch_dec_release(v) atomic64_fetch_sub_release(1, (v))
948		-#else /* atomic64_fetch_dec */
949		-#define atomic64_fetch_dec_relaxed atomic64_fetch_dec
950		-#define atomic64_fetch_dec_acquire atomic64_fetch_dec
951		-#define atomic64_fetch_dec_release atomic64_fetch_dec
952		-#endif /* atomic64_fetch_dec */
953		-
954		-#else /* atomic64_fetch_dec_relaxed */
955		-
956		-#ifndef atomic64_fetch_dec_acquire
957		-#define atomic64_fetch_dec_acquire(...) \
958		- __atomic_op_acquire(atomic64_fetch_dec, __VA_ARGS__)
959		-#endif
960		-
961		-#ifndef atomic64_fetch_dec_release
962		-#define atomic64_fetch_dec_release(...) \
963		- __atomic_op_release(atomic64_fetch_dec, __VA_ARGS__)
964		-#endif
965		-
966		-#ifndef atomic64_fetch_dec
967		-#define atomic64_fetch_dec(...) \
968		- __atomic_op_fence(atomic64_fetch_dec, __VA_ARGS__)
969		-#endif
970		-#endif /* atomic64_fetch_dec_relaxed */
971		-
972		-/* atomic64_fetch_or_relaxed */
973		-#ifndef atomic64_fetch_or_relaxed
974		-#define atomic64_fetch_or_relaxed atomic64_fetch_or
975		-#define atomic64_fetch_or_acquire atomic64_fetch_or
976		-#define atomic64_fetch_or_release atomic64_fetch_or
977		-
978		-#else /* atomic64_fetch_or_relaxed */
979		-
980		-#ifndef atomic64_fetch_or_acquire
981		-#define atomic64_fetch_or_acquire(...) \
982		- __atomic_op_acquire(atomic64_fetch_or, __VA_ARGS__)
983		-#endif
984		-
985		-#ifndef atomic64_fetch_or_release
986		-#define atomic64_fetch_or_release(...) \
987		- __atomic_op_release(atomic64_fetch_or, __VA_ARGS__)
988		-#endif
989		-
990		-#ifndef atomic64_fetch_or
991		-#define atomic64_fetch_or(...) \
992		- __atomic_op_fence(atomic64_fetch_or, __VA_ARGS__)
993		-#endif
994		-#endif /* atomic64_fetch_or_relaxed */
995		-
996		-/* atomic64_fetch_and_relaxed */
997		-#ifndef atomic64_fetch_and_relaxed
998		-#define atomic64_fetch_and_relaxed atomic64_fetch_and
999		-#define atomic64_fetch_and_acquire atomic64_fetch_and
1000		-#define atomic64_fetch_and_release atomic64_fetch_and
1001		-
1002		-#else /* atomic64_fetch_and_relaxed */
1003		-
1004		-#ifndef atomic64_fetch_and_acquire
1005		-#define atomic64_fetch_and_acquire(...) \
1006		- __atomic_op_acquire(atomic64_fetch_and, __VA_ARGS__)
1007		-#endif
1008		-
1009		-#ifndef atomic64_fetch_and_release
1010		-#define atomic64_fetch_and_release(...) \
1011		- __atomic_op_release(atomic64_fetch_and, __VA_ARGS__)
1012		-#endif
1013		-
1014		-#ifndef atomic64_fetch_and
1015		-#define atomic64_fetch_and(...) \
1016		- __atomic_op_fence(atomic64_fetch_and, __VA_ARGS__)
1017		-#endif
1018		-#endif /* atomic64_fetch_and_relaxed */
1019		-
1020		-#ifndef atomic64_andnot
1021		-#define atomic64_andnot(i, v) atomic64_and(~(long long)(i), (v))
1022		-#endif
1023		-
1024		-#ifndef atomic64_fetch_andnot_relaxed
1025		-
1026		-#ifndef atomic64_fetch_andnot
1027		-#define atomic64_fetch_andnot(i, v) atomic64_fetch_and(~(long long)(i), (v))
1028		-#define atomic64_fetch_andnot_relaxed(i, v) atomic64_fetch_and_relaxed(~(long long)(i), (v))
1029		-#define atomic64_fetch_andnot_acquire(i, v) atomic64_fetch_and_acquire(~(long long)(i), (v))
1030		-#define atomic64_fetch_andnot_release(i, v) atomic64_fetch_and_release(~(long long)(i), (v))
1031		-#else /* atomic64_fetch_andnot */
1032		-#define atomic64_fetch_andnot_relaxed atomic64_fetch_andnot
1033		-#define atomic64_fetch_andnot_acquire atomic64_fetch_andnot
1034		-#define atomic64_fetch_andnot_release atomic64_fetch_andnot
1035		-#endif /* atomic64_fetch_andnot */
1036		-
1037		-#else /* atomic64_fetch_andnot_relaxed */
1038		-
1039		-#ifndef atomic64_fetch_andnot_acquire
1040		-#define atomic64_fetch_andnot_acquire(...) \
1041		- __atomic_op_acquire(atomic64_fetch_andnot, __VA_ARGS__)
1042		-#endif
1043		-
1044		-#ifndef atomic64_fetch_andnot_release
1045		-#define atomic64_fetch_andnot_release(...) \
1046		- __atomic_op_release(atomic64_fetch_andnot, __VA_ARGS__)
1047		-#endif
1048		-
1049		-#ifndef atomic64_fetch_andnot
1050		-#define atomic64_fetch_andnot(...) \
1051		- __atomic_op_fence(atomic64_fetch_andnot, __VA_ARGS__)
1052		-#endif
1053		-#endif /* atomic64_fetch_andnot_relaxed */
1054		-
1055		-/* atomic64_fetch_xor_relaxed */
1056		-#ifndef atomic64_fetch_xor_relaxed
1057		-#define atomic64_fetch_xor_relaxed atomic64_fetch_xor
1058		-#define atomic64_fetch_xor_acquire atomic64_fetch_xor
1059		-#define atomic64_fetch_xor_release atomic64_fetch_xor
1060		-
1061		-#else /* atomic64_fetch_xor_relaxed */
1062		-
1063		-#ifndef atomic64_fetch_xor_acquire
1064		-#define atomic64_fetch_xor_acquire(...) \
1065		- __atomic_op_acquire(atomic64_fetch_xor, __VA_ARGS__)
1066		-#endif
1067		-
1068		-#ifndef atomic64_fetch_xor_release
1069		-#define atomic64_fetch_xor_release(...) \
1070		- __atomic_op_release(atomic64_fetch_xor, __VA_ARGS__)
1071		-#endif
1072		-
1073		-#ifndef atomic64_fetch_xor
1074		-#define atomic64_fetch_xor(...) \
1075		- __atomic_op_fence(atomic64_fetch_xor, __VA_ARGS__)
1076		-#endif
1077		-#endif /* atomic64_fetch_xor_relaxed */
1078		-
1079		-
1080		-/* atomic64_xchg_relaxed */
1081		-#ifndef atomic64_xchg_relaxed
1082		-#define atomic64_xchg_relaxed atomic64_xchg
1083		-#define atomic64_xchg_acquire atomic64_xchg
1084		-#define atomic64_xchg_release atomic64_xchg
1085		-
1086		-#else /* atomic64_xchg_relaxed */
1087		-
1088		-#ifndef atomic64_xchg_acquire
1089		-#define atomic64_xchg_acquire(...) \
1090		- __atomic_op_acquire(atomic64_xchg, __VA_ARGS__)
1091		-#endif
1092		-
1093		-#ifndef atomic64_xchg_release
1094		-#define atomic64_xchg_release(...) \
1095		- __atomic_op_release(atomic64_xchg, __VA_ARGS__)
1096		-#endif
1097		-
1098		-#ifndef atomic64_xchg
1099		-#define atomic64_xchg(...) \
1100		- __atomic_op_fence(atomic64_xchg, __VA_ARGS__)
1101		-#endif
1102		-#endif /* atomic64_xchg_relaxed */
1103		-
1104		-/* atomic64_cmpxchg_relaxed */
1105		-#ifndef atomic64_cmpxchg_relaxed
1106		-#define atomic64_cmpxchg_relaxed atomic64_cmpxchg
1107		-#define atomic64_cmpxchg_acquire atomic64_cmpxchg
1108		-#define atomic64_cmpxchg_release atomic64_cmpxchg
1109		-
1110		-#else /* atomic64_cmpxchg_relaxed */
1111		-
1112		-#ifndef atomic64_cmpxchg_acquire
1113		-#define atomic64_cmpxchg_acquire(...) \
1114		- __atomic_op_acquire(atomic64_cmpxchg, __VA_ARGS__)
1115		-#endif
1116		-
1117		-#ifndef atomic64_cmpxchg_release
1118		-#define atomic64_cmpxchg_release(...) \
1119		- __atomic_op_release(atomic64_cmpxchg, __VA_ARGS__)
1120		-#endif
1121		-
1122		-#ifndef atomic64_cmpxchg
1123		-#define atomic64_cmpxchg(...) \
1124		- __atomic_op_fence(atomic64_cmpxchg, __VA_ARGS__)
1125		-#endif
1126		-#endif /* atomic64_cmpxchg_relaxed */
1127		-
1128		-#ifndef atomic64_try_cmpxchg
1129		-
1130		-#define __atomic64_try_cmpxchg(type, _p, _po, _n) \
1131		-({ \
1132		- typeof(_po) __po = (_po); \
1133		- typeof((_po)) __r, __o = __po; \
1134		- __r = atomic64_cmpxchg##type((_p), __o, (_n)); \
1135		- if (unlikely(__r != __o)) \
1136		- *__po = __r; \
1137		- likely(__r == __o); \
1138		-})
1139		-
1140		-#define atomic64_try_cmpxchg(_p, _po, _n) __atomic64_try_cmpxchg(, _p, _po, _n)
1141		-#define atomic64_try_cmpxchg_relaxed(_p, _po, _n) __atomic64_try_cmpxchg(_relaxed, _p, _po, _n)
1142		-#define atomic64_try_cmpxchg_acquire(_p, _po, _n) __atomic64_try_cmpxchg(_acquire, _p, _po, _n)
1143		-#define atomic64_try_cmpxchg_release(_p, _po, _n) __atomic64_try_cmpxchg(_release, _p, _po, _n)
1144		-
1145		-#else /* atomic64_try_cmpxchg */
1146		-#define atomic64_try_cmpxchg_relaxed atomic64_try_cmpxchg
1147		-#define atomic64_try_cmpxchg_acquire atomic64_try_cmpxchg
1148		-#define atomic64_try_cmpxchg_release atomic64_try_cmpxchg
1149		-#endif /* atomic64_try_cmpxchg */
1150		-
1151		-/**
1152		- * atomic64_fetch_add_unless - add unless the number is already a given value
1153		- * @v: pointer of type atomic64_t
1154		- * @a: the amount to add to v...
1155		- * @u: ...unless v is equal to u.
1156		- *
1157		- * Atomically adds @a to @v, if @v was not already @u.
1158		- * Returns the original value of @v.
1159		- */
1160		-#ifndef atomic64_fetch_add_unless
1161		-static inline long long atomic64_fetch_add_unless(atomic64_t *v, long long a,
1162		- long long u)
1163		-{
1164		- long long c = atomic64_read(v);
1165		-
1166		- do {
1167		- if (unlikely(c == u))
1168		- break;
1169		- } while (!atomic64_try_cmpxchg(v, &c, c + a));
1170		-
1171		- return c;
1172		-}
1173		-#endif
1174		-
1175		-/**
1176		- * atomic64_add_unless - add unless the number is already a given value
1177		- * @v: pointer of type atomic_t
1178		- * @a: the amount to add to v...
1179		- * @u: ...unless v is equal to u.
1180		- *
1181		- * Atomically adds @a to @v, if @v was not already @u.
1182		- * Returns true if the addition was done.
1183		- */
1184		-static inline bool atomic64_add_unless(atomic64_t *v, long long a, long long u)
1185		-{
1186		- return atomic64_fetch_add_unless(v, a, u) != u;
1187		-}
1188		-
1189		-/**
1190		- * atomic64_inc_not_zero - increment unless the number is zero
1191		- * @v: pointer of type atomic64_t
1192		- *
1193		- * Atomically increments @v by 1, if @v is non-zero.
1194		- * Returns true if the increment was done.
1195		- */
1196		-#ifndef atomic64_inc_not_zero
1197		-#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
1198		-#endif
1199		-
1200		-/**
1201		- * atomic64_inc_and_test - increment and test
1202		- * @v: pointer of type atomic64_t
1203		- *
1204		- * Atomically increments @v by 1
1205		- * and returns true if the result is zero, or false for all
1206		- * other cases.
1207		- */
1208		-#ifndef atomic64_inc_and_test
1209		-static inline bool atomic64_inc_and_test(atomic64_t *v)
1210		-{
1211		- return atomic64_inc_return(v) == 0;
1212		-}
1213		-#endif
1214		-
1215		-/**
1216		- * atomic64_dec_and_test - decrement and test
1217		- * @v: pointer of type atomic64_t
1218		- *
1219		- * Atomically decrements @v by 1 and
1220		- * returns true if the result is 0, or false for all other
1221		- * cases.
1222		- */
1223		-#ifndef atomic64_dec_and_test
1224		-static inline bool atomic64_dec_and_test(atomic64_t *v)
1225		-{
1226		- return atomic64_dec_return(v) == 0;
1227		-}
1228		-#endif
1229		-
1230		-/**
1231		- * atomic64_sub_and_test - subtract value from variable and test result
1232		- * @i: integer value to subtract
1233		- * @v: pointer of type atomic64_t
1234		- *
1235		- * Atomically subtracts @i from @v and returns
1236		- * true if the result is zero, or false for all
1237		- * other cases.
1238		- */
1239		-#ifndef atomic64_sub_and_test
1240		-static inline bool atomic64_sub_and_test(long long i, atomic64_t *v)
1241		-{
1242		- return atomic64_sub_return(i, v) == 0;
1243		-}
1244		-#endif
1245		-
1246		-/**
1247		- * atomic64_add_negative - add and test if negative
1248		- * @i: integer value to add
1249		- * @v: pointer of type atomic64_t
1250		- *
1251		- * Atomically adds @i to @v and returns true
1252		- * if the result is negative, or false when
1253		- * result is greater than or equal to zero.
1254		- */
1255		-#ifndef atomic64_add_negative
1256		-static inline bool atomic64_add_negative(long long i, atomic64_t *v)
1257		-{
1258		- return atomic64_add_return(i, v) < 0;
1259		-}
1260		-#endif
1261		-
1262		-#ifndef atomic64_inc_unless_negative
1263		-static inline bool atomic64_inc_unless_negative(atomic64_t *v)
1264		-{
1265		- long long c = atomic64_read(v);
1266		-
1267		- do {
1268		- if (unlikely(c < 0))
1269		- return false;
1270		- } while (!atomic64_try_cmpxchg(v, &c, c + 1));
1271		-
1272		- return true;
1273		-}
1274		-#endif
1275		-
1276		-#ifndef atomic64_dec_unless_positive
1277		-static inline bool atomic64_dec_unless_positive(atomic64_t *v)
1278		-{
1279		- long long c = atomic64_read(v);
1280		-
1281		- do {
1282		- if (unlikely(c > 0))
1283		- return false;
1284		- } while (!atomic64_try_cmpxchg(v, &c, c - 1));
1285		-
1286		- return true;
1287		-}
1288		-#endif
1289		-
1290		-/*
1291		- * atomic64_dec_if_positive - decrement by 1 if old value positive
1292		- * @v: pointer of type atomic64_t
1293		- *
1294		- * The function returns the old value of *v minus 1, even if
1295		- * the atomic64 variable, v, was not decremented.
1296		- */
1297		-#ifndef atomic64_dec_if_positive
1298		-static inline long long atomic64_dec_if_positive(atomic64_t *v)
1299		-{
1300		- long long dec, c = atomic64_read(v);
1301		-
1302		- do {
1303		- dec = c - 1;
1304		- if (unlikely(dec < 0))
1305		- break;
1306		- } while (!atomic64_try_cmpxchg(v, &c, dec));
1307		-
1308		- return dec;
1309		-}
	80	+#ifdef ARCH_ATOMIC
	81	+#include <linux/atomic-arch-fallback.h>
	82	+#include <asm-generic/atomic-instrumented.h>
	83	+#else
	84	+#include <linux/atomic-fallback.h>
1310	85	#endif
1311		-
1312		-#define atomic64_cond_read_relaxed(v, c) smp_cond_load_relaxed(&(v)->counter, (c))
1313		-#define atomic64_cond_read_acquire(v, c) smp_cond_load_acquire(&(v)->counter, (c))
1314	86
1315	87	#include <asm-generic/atomic-long.h>
1316	88