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1 | #ifndef _LINUX_ATOMIC_INSTRUMENTED_H |
2 | #define _LINUX_ATOMIC_INSTRUMENTED_H | |
3 | ||
4 | #include <linux/build_bug.h> | |
5 | ||
6 | static __always_inline int atomic_read(const atomic_t *v) | |
7 | { | |
8 | return arch_atomic_read(v); | |
9 | } | |
10 | ||
11 | static __always_inline s64 atomic64_read(const atomic64_t *v) | |
12 | { | |
13 | return arch_atomic64_read(v); | |
14 | } | |
15 | ||
16 | static __always_inline void atomic_set(atomic_t *v, int i) | |
17 | { | |
18 | arch_atomic_set(v, i); | |
19 | } | |
20 | ||
21 | static __always_inline void atomic64_set(atomic64_t *v, s64 i) | |
22 | { | |
23 | arch_atomic64_set(v, i); | |
24 | } | |
25 | ||
26 | static __always_inline int atomic_xchg(atomic_t *v, int i) | |
27 | { | |
28 | return arch_atomic_xchg(v, i); | |
29 | } | |
30 | ||
31 | static __always_inline s64 atomic64_xchg(atomic64_t *v, s64 i) | |
32 | { | |
33 | return arch_atomic64_xchg(v, i); | |
34 | } | |
35 | ||
36 | static __always_inline int atomic_cmpxchg(atomic_t *v, int old, int new) | |
37 | { | |
38 | return arch_atomic_cmpxchg(v, old, new); | |
39 | } | |
40 | ||
41 | static __always_inline s64 atomic64_cmpxchg(atomic64_t *v, s64 old, s64 new) | |
42 | { | |
43 | return arch_atomic64_cmpxchg(v, old, new); | |
44 | } | |
45 | ||
46 | #ifdef arch_atomic_try_cmpxchg | |
47 | #define atomic_try_cmpxchg atomic_try_cmpxchg | |
48 | static __always_inline bool atomic_try_cmpxchg(atomic_t *v, int *old, int new) | |
49 | { | |
50 | return arch_atomic_try_cmpxchg(v, old, new); | |
51 | } | |
52 | #endif | |
53 | ||
54 | #ifdef arch_atomic64_try_cmpxchg | |
55 | #define atomic64_try_cmpxchg atomic64_try_cmpxchg | |
56 | static __always_inline bool atomic64_try_cmpxchg(atomic64_t *v, s64 *old, s64 new) | |
57 | { | |
58 | return arch_atomic64_try_cmpxchg(v, old, new); | |
59 | } | |
60 | #endif | |
61 | ||
62 | static __always_inline int __atomic_add_unless(atomic_t *v, int a, int u) | |
63 | { | |
64 | return __arch_atomic_add_unless(v, a, u); | |
65 | } | |
66 | ||
67 | ||
68 | static __always_inline bool atomic64_add_unless(atomic64_t *v, s64 a, s64 u) | |
69 | { | |
70 | return arch_atomic64_add_unless(v, a, u); | |
71 | } | |
72 | ||
73 | static __always_inline void atomic_inc(atomic_t *v) | |
74 | { | |
75 | arch_atomic_inc(v); | |
76 | } | |
77 | ||
78 | static __always_inline void atomic64_inc(atomic64_t *v) | |
79 | { | |
80 | arch_atomic64_inc(v); | |
81 | } | |
82 | ||
83 | static __always_inline void atomic_dec(atomic_t *v) | |
84 | { | |
85 | arch_atomic_dec(v); | |
86 | } | |
87 | ||
88 | static __always_inline void atomic64_dec(atomic64_t *v) | |
89 | { | |
90 | arch_atomic64_dec(v); | |
91 | } | |
92 | ||
93 | static __always_inline void atomic_add(int i, atomic_t *v) | |
94 | { | |
95 | arch_atomic_add(i, v); | |
96 | } | |
97 | ||
98 | static __always_inline void atomic64_add(s64 i, atomic64_t *v) | |
99 | { | |
100 | arch_atomic64_add(i, v); | |
101 | } | |
102 | ||
103 | static __always_inline void atomic_sub(int i, atomic_t *v) | |
104 | { | |
105 | arch_atomic_sub(i, v); | |
106 | } | |
107 | ||
108 | static __always_inline void atomic64_sub(s64 i, atomic64_t *v) | |
109 | { | |
110 | arch_atomic64_sub(i, v); | |
111 | } | |
112 | ||
113 | static __always_inline void atomic_and(int i, atomic_t *v) | |
114 | { | |
115 | arch_atomic_and(i, v); | |
116 | } | |
117 | ||
118 | static __always_inline void atomic64_and(s64 i, atomic64_t *v) | |
119 | { | |
120 | arch_atomic64_and(i, v); | |
121 | } | |
122 | ||
123 | static __always_inline void atomic_or(int i, atomic_t *v) | |
124 | { | |
125 | arch_atomic_or(i, v); | |
126 | } | |
127 | ||
128 | static __always_inline void atomic64_or(s64 i, atomic64_t *v) | |
129 | { | |
130 | arch_atomic64_or(i, v); | |
131 | } | |
132 | ||
133 | static __always_inline void atomic_xor(int i, atomic_t *v) | |
134 | { | |
135 | arch_atomic_xor(i, v); | |
136 | } | |
137 | ||
138 | static __always_inline void atomic64_xor(s64 i, atomic64_t *v) | |
139 | { | |
140 | arch_atomic64_xor(i, v); | |
141 | } | |
142 | ||
143 | static __always_inline int atomic_inc_return(atomic_t *v) | |
144 | { | |
145 | return arch_atomic_inc_return(v); | |
146 | } | |
147 | ||
148 | static __always_inline s64 atomic64_inc_return(atomic64_t *v) | |
149 | { | |
150 | return arch_atomic64_inc_return(v); | |
151 | } | |
152 | ||
153 | static __always_inline int atomic_dec_return(atomic_t *v) | |
154 | { | |
155 | return arch_atomic_dec_return(v); | |
156 | } | |
157 | ||
158 | static __always_inline s64 atomic64_dec_return(atomic64_t *v) | |
159 | { | |
160 | return arch_atomic64_dec_return(v); | |
161 | } | |
162 | ||
163 | static __always_inline s64 atomic64_inc_not_zero(atomic64_t *v) | |
164 | { | |
165 | return arch_atomic64_inc_not_zero(v); | |
166 | } | |
167 | ||
168 | static __always_inline s64 atomic64_dec_if_positive(atomic64_t *v) | |
169 | { | |
170 | return arch_atomic64_dec_if_positive(v); | |
171 | } | |
172 | ||
173 | static __always_inline bool atomic_dec_and_test(atomic_t *v) | |
174 | { | |
175 | return arch_atomic_dec_and_test(v); | |
176 | } | |
177 | ||
178 | static __always_inline bool atomic64_dec_and_test(atomic64_t *v) | |
179 | { | |
180 | return arch_atomic64_dec_and_test(v); | |
181 | } | |
182 | ||
183 | static __always_inline bool atomic_inc_and_test(atomic_t *v) | |
184 | { | |
185 | return arch_atomic_inc_and_test(v); | |
186 | } | |
187 | ||
188 | static __always_inline bool atomic64_inc_and_test(atomic64_t *v) | |
189 | { | |
190 | return arch_atomic64_inc_and_test(v); | |
191 | } | |
192 | ||
193 | static __always_inline int atomic_add_return(int i, atomic_t *v) | |
194 | { | |
195 | return arch_atomic_add_return(i, v); | |
196 | } | |
197 | ||
198 | static __always_inline s64 atomic64_add_return(s64 i, atomic64_t *v) | |
199 | { | |
200 | return arch_atomic64_add_return(i, v); | |
201 | } | |
202 | ||
203 | static __always_inline int atomic_sub_return(int i, atomic_t *v) | |
204 | { | |
205 | return arch_atomic_sub_return(i, v); | |
206 | } | |
207 | ||
208 | static __always_inline s64 atomic64_sub_return(s64 i, atomic64_t *v) | |
209 | { | |
210 | return arch_atomic64_sub_return(i, v); | |
211 | } | |
212 | ||
213 | static __always_inline int atomic_fetch_add(int i, atomic_t *v) | |
214 | { | |
215 | return arch_atomic_fetch_add(i, v); | |
216 | } | |
217 | ||
218 | static __always_inline s64 atomic64_fetch_add(s64 i, atomic64_t *v) | |
219 | { | |
220 | return arch_atomic64_fetch_add(i, v); | |
221 | } | |
222 | ||
223 | static __always_inline int atomic_fetch_sub(int i, atomic_t *v) | |
224 | { | |
225 | return arch_atomic_fetch_sub(i, v); | |
226 | } | |
227 | ||
228 | static __always_inline s64 atomic64_fetch_sub(s64 i, atomic64_t *v) | |
229 | { | |
230 | return arch_atomic64_fetch_sub(i, v); | |
231 | } | |
232 | ||
233 | static __always_inline int atomic_fetch_and(int i, atomic_t *v) | |
234 | { | |
235 | return arch_atomic_fetch_and(i, v); | |
236 | } | |
237 | ||
238 | static __always_inline s64 atomic64_fetch_and(s64 i, atomic64_t *v) | |
239 | { | |
240 | return arch_atomic64_fetch_and(i, v); | |
241 | } | |
242 | ||
243 | static __always_inline int atomic_fetch_or(int i, atomic_t *v) | |
244 | { | |
245 | return arch_atomic_fetch_or(i, v); | |
246 | } | |
247 | ||
248 | static __always_inline s64 atomic64_fetch_or(s64 i, atomic64_t *v) | |
249 | { | |
250 | return arch_atomic64_fetch_or(i, v); | |
251 | } | |
252 | ||
253 | static __always_inline int atomic_fetch_xor(int i, atomic_t *v) | |
254 | { | |
255 | return arch_atomic_fetch_xor(i, v); | |
256 | } | |
257 | ||
258 | static __always_inline s64 atomic64_fetch_xor(s64 i, atomic64_t *v) | |
259 | { | |
260 | return arch_atomic64_fetch_xor(i, v); | |
261 | } | |
262 | ||
263 | static __always_inline bool atomic_sub_and_test(int i, atomic_t *v) | |
264 | { | |
265 | return arch_atomic_sub_and_test(i, v); | |
266 | } | |
267 | ||
268 | static __always_inline bool atomic64_sub_and_test(s64 i, atomic64_t *v) | |
269 | { | |
270 | return arch_atomic64_sub_and_test(i, v); | |
271 | } | |
272 | ||
273 | static __always_inline bool atomic_add_negative(int i, atomic_t *v) | |
274 | { | |
275 | return arch_atomic_add_negative(i, v); | |
276 | } | |
277 | ||
278 | static __always_inline bool atomic64_add_negative(s64 i, atomic64_t *v) | |
279 | { | |
280 | return arch_atomic64_add_negative(i, v); | |
281 | } | |
282 | ||
283 | static __always_inline unsigned long | |
284 | cmpxchg_size(volatile void *ptr, unsigned long old, unsigned long new, int size) | |
285 | { | |
286 | switch (size) { | |
287 | case 1: | |
288 | return arch_cmpxchg((u8 *)ptr, (u8)old, (u8)new); | |
289 | case 2: | |
290 | return arch_cmpxchg((u16 *)ptr, (u16)old, (u16)new); | |
291 | case 4: | |
292 | return arch_cmpxchg((u32 *)ptr, (u32)old, (u32)new); | |
293 | case 8: | |
294 | BUILD_BUG_ON(sizeof(unsigned long) != 8); | |
295 | return arch_cmpxchg((u64 *)ptr, (u64)old, (u64)new); | |
296 | } | |
297 | BUILD_BUG(); | |
298 | return 0; | |
299 | } | |
300 | ||
301 | #define cmpxchg(ptr, old, new) \ | |
302 | ({ \ | |
303 | ((__typeof__(*(ptr)))cmpxchg_size((ptr), (unsigned long)(old), \ | |
304 | (unsigned long)(new), sizeof(*(ptr)))); \ | |
305 | }) | |
306 | ||
307 | static __always_inline unsigned long | |
308 | sync_cmpxchg_size(volatile void *ptr, unsigned long old, unsigned long new, | |
309 | int size) | |
310 | { | |
311 | switch (size) { | |
312 | case 1: | |
313 | return arch_sync_cmpxchg((u8 *)ptr, (u8)old, (u8)new); | |
314 | case 2: | |
315 | return arch_sync_cmpxchg((u16 *)ptr, (u16)old, (u16)new); | |
316 | case 4: | |
317 | return arch_sync_cmpxchg((u32 *)ptr, (u32)old, (u32)new); | |
318 | case 8: | |
319 | BUILD_BUG_ON(sizeof(unsigned long) != 8); | |
320 | return arch_sync_cmpxchg((u64 *)ptr, (u64)old, (u64)new); | |
321 | } | |
322 | BUILD_BUG(); | |
323 | return 0; | |
324 | } | |
325 | ||
326 | #define sync_cmpxchg(ptr, old, new) \ | |
327 | ({ \ | |
328 | ((__typeof__(*(ptr)))sync_cmpxchg_size((ptr), \ | |
329 | (unsigned long)(old), (unsigned long)(new), \ | |
330 | sizeof(*(ptr)))); \ | |
331 | }) | |
332 | ||
333 | static __always_inline unsigned long | |
334 | cmpxchg_local_size(volatile void *ptr, unsigned long old, unsigned long new, | |
335 | int size) | |
336 | { | |
337 | switch (size) { | |
338 | case 1: | |
339 | return arch_cmpxchg_local((u8 *)ptr, (u8)old, (u8)new); | |
340 | case 2: | |
341 | return arch_cmpxchg_local((u16 *)ptr, (u16)old, (u16)new); | |
342 | case 4: | |
343 | return arch_cmpxchg_local((u32 *)ptr, (u32)old, (u32)new); | |
344 | case 8: | |
345 | BUILD_BUG_ON(sizeof(unsigned long) != 8); | |
346 | return arch_cmpxchg_local((u64 *)ptr, (u64)old, (u64)new); | |
347 | } | |
348 | BUILD_BUG(); | |
349 | return 0; | |
350 | } | |
351 | ||
352 | #define cmpxchg_local(ptr, old, new) \ | |
353 | ({ \ | |
354 | ((__typeof__(*(ptr)))cmpxchg_local_size((ptr), \ | |
355 | (unsigned long)(old), (unsigned long)(new), \ | |
356 | sizeof(*(ptr)))); \ | |
357 | }) | |
358 | ||
359 | static __always_inline u64 | |
360 | cmpxchg64_size(volatile u64 *ptr, u64 old, u64 new) | |
361 | { | |
362 | return arch_cmpxchg64(ptr, old, new); | |
363 | } | |
364 | ||
365 | #define cmpxchg64(ptr, old, new) \ | |
366 | ({ \ | |
367 | ((__typeof__(*(ptr)))cmpxchg64_size((ptr), (u64)(old), \ | |
368 | (u64)(new))); \ | |
369 | }) | |
370 | ||
371 | static __always_inline u64 | |
372 | cmpxchg64_local_size(volatile u64 *ptr, u64 old, u64 new) | |
373 | { | |
374 | return arch_cmpxchg64_local(ptr, old, new); | |
375 | } | |
376 | ||
377 | #define cmpxchg64_local(ptr, old, new) \ | |
378 | ({ \ | |
379 | ((__typeof__(*(ptr)))cmpxchg64_local_size((ptr), (u64)(old), \ | |
380 | (u64)(new))); \ | |
381 | }) | |
382 | ||
383 | #define cmpxchg_double(p1, p2, o1, o2, n1, n2) \ | |
384 | ({ \ | |
385 | arch_cmpxchg_double((p1), (p2), (o1), (o2), (n1), (n2)); \ | |
386 | }) | |
387 | ||
388 | #define cmpxchg_double_local(p1, p2, o1, o2, n1, n2) \ | |
389 | ({ \ | |
390 | arch_cmpxchg_double_local((p1), (p2), (o1), (o2), (n1), (n2)); \ | |
391 | }) | |
392 | ||
393 | #endif /* _LINUX_ATOMIC_INSTRUMENTED_H */ |