1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef _ASM_GENERIC_PERCPU_H_ |
3 | #define _ASM_GENERIC_PERCPU_H_ |
4 | |
5 | #include <linux/compiler.h> |
6 | #include <linux/threads.h> |
7 | #include <linux/percpu-defs.h> |
8 | |
9 | #ifdef CONFIG_SMP |
10 | |
11 | /* |
12 | * per_cpu_offset() is the offset that has to be added to a |
13 | * percpu variable to get to the instance for a certain processor. |
14 | * |
15 | * Most arches use the __per_cpu_offset array for those offsets but |
16 | * some arches have their own ways of determining the offset (x86_64, s390). |
17 | */ |
18 | #ifndef __per_cpu_offset |
19 | extern unsigned long __per_cpu_offset[NR_CPUS]; |
20 | |
21 | #define per_cpu_offset(x) (__per_cpu_offset[x]) |
22 | #endif |
23 | |
24 | /* |
25 | * Determine the offset for the currently active processor. |
26 | * An arch may define __my_cpu_offset to provide a more effective |
27 | * means of obtaining the offset to the per cpu variables of the |
28 | * current processor. |
29 | */ |
30 | #ifndef __my_cpu_offset |
31 | #define __my_cpu_offset per_cpu_offset(raw_smp_processor_id()) |
32 | #endif |
33 | #ifdef CONFIG_DEBUG_PREEMPT |
34 | #define my_cpu_offset per_cpu_offset(smp_processor_id()) |
35 | #else |
36 | #define my_cpu_offset __my_cpu_offset |
37 | #endif |
38 | |
39 | /* |
40 | * Arch may define arch_raw_cpu_ptr() to provide more efficient address |
41 | * translations for raw_cpu_ptr(). |
42 | */ |
43 | #ifndef arch_raw_cpu_ptr |
44 | #define arch_raw_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, __my_cpu_offset) |
45 | #endif |
46 | |
47 | #ifdef CONFIG_HAVE_SETUP_PER_CPU_AREA |
48 | extern void setup_per_cpu_areas(void); |
49 | #endif |
50 | |
51 | #endif /* SMP */ |
52 | |
53 | #ifndef PER_CPU_BASE_SECTION |
54 | #ifdef CONFIG_SMP |
55 | #define PER_CPU_BASE_SECTION ".data..percpu" |
56 | #else |
57 | #define PER_CPU_BASE_SECTION ".data" |
58 | #endif |
59 | #endif |
60 | |
61 | #ifndef PER_CPU_ATTRIBUTES |
62 | #define PER_CPU_ATTRIBUTES |
63 | #endif |
64 | |
65 | #define raw_cpu_generic_read(pcp) \ |
66 | ({ \ |
67 | *raw_cpu_ptr(&(pcp)); \ |
68 | }) |
69 | |
70 | #define raw_cpu_generic_to_op(pcp, val, op) \ |
71 | do { \ |
72 | *raw_cpu_ptr(&(pcp)) op val; \ |
73 | } while (0) |
74 | |
75 | #define raw_cpu_generic_add_return(pcp, val) \ |
76 | ({ \ |
77 | typeof(pcp) *__p = raw_cpu_ptr(&(pcp)); \ |
78 | \ |
79 | *__p += val; \ |
80 | *__p; \ |
81 | }) |
82 | |
83 | #define raw_cpu_generic_xchg(pcp, nval) \ |
84 | ({ \ |
85 | typeof(pcp) *__p = raw_cpu_ptr(&(pcp)); \ |
86 | typeof(pcp) __ret; \ |
87 | __ret = *__p; \ |
88 | *__p = nval; \ |
89 | __ret; \ |
90 | }) |
91 | |
92 | #define __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, _cmpxchg) \ |
93 | ({ \ |
94 | typeof(pcp) __val, __old = *(ovalp); \ |
95 | __val = _cmpxchg(pcp, __old, nval); \ |
96 | if (__val != __old) \ |
97 | *(ovalp) = __val; \ |
98 | __val == __old; \ |
99 | }) |
100 | |
101 | #define raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) \ |
102 | ({ \ |
103 | typeof(pcp) *__p = raw_cpu_ptr(&(pcp)); \ |
104 | typeof(pcp) __val = *__p, ___old = *(ovalp); \ |
105 | bool __ret; \ |
106 | if (__val == ___old) { \ |
107 | *__p = nval; \ |
108 | __ret = true; \ |
109 | } else { \ |
110 | *(ovalp) = __val; \ |
111 | __ret = false; \ |
112 | } \ |
113 | __ret; \ |
114 | }) |
115 | |
116 | #define raw_cpu_generic_cmpxchg(pcp, oval, nval) \ |
117 | ({ \ |
118 | typeof(pcp) __old = (oval); \ |
119 | raw_cpu_generic_try_cmpxchg(pcp, &__old, nval); \ |
120 | __old; \ |
121 | }) |
122 | |
123 | #define __this_cpu_generic_read_nopreempt(pcp) \ |
124 | ({ \ |
125 | typeof(pcp) ___ret; \ |
126 | preempt_disable_notrace(); \ |
127 | ___ret = READ_ONCE(*raw_cpu_ptr(&(pcp))); \ |
128 | preempt_enable_notrace(); \ |
129 | ___ret; \ |
130 | }) |
131 | |
132 | #define __this_cpu_generic_read_noirq(pcp) \ |
133 | ({ \ |
134 | typeof(pcp) ___ret; \ |
135 | unsigned long ___flags; \ |
136 | raw_local_irq_save(___flags); \ |
137 | ___ret = raw_cpu_generic_read(pcp); \ |
138 | raw_local_irq_restore(___flags); \ |
139 | ___ret; \ |
140 | }) |
141 | |
142 | #define this_cpu_generic_read(pcp) \ |
143 | ({ \ |
144 | typeof(pcp) __ret; \ |
145 | if (__native_word(pcp)) \ |
146 | __ret = __this_cpu_generic_read_nopreempt(pcp); \ |
147 | else \ |
148 | __ret = __this_cpu_generic_read_noirq(pcp); \ |
149 | __ret; \ |
150 | }) |
151 | |
152 | #define this_cpu_generic_to_op(pcp, val, op) \ |
153 | do { \ |
154 | unsigned long __flags; \ |
155 | raw_local_irq_save(__flags); \ |
156 | raw_cpu_generic_to_op(pcp, val, op); \ |
157 | raw_local_irq_restore(__flags); \ |
158 | } while (0) |
159 | |
160 | |
161 | #define this_cpu_generic_add_return(pcp, val) \ |
162 | ({ \ |
163 | typeof(pcp) __ret; \ |
164 | unsigned long __flags; \ |
165 | raw_local_irq_save(__flags); \ |
166 | __ret = raw_cpu_generic_add_return(pcp, val); \ |
167 | raw_local_irq_restore(__flags); \ |
168 | __ret; \ |
169 | }) |
170 | |
171 | #define this_cpu_generic_xchg(pcp, nval) \ |
172 | ({ \ |
173 | typeof(pcp) __ret; \ |
174 | unsigned long __flags; \ |
175 | raw_local_irq_save(__flags); \ |
176 | __ret = raw_cpu_generic_xchg(pcp, nval); \ |
177 | raw_local_irq_restore(__flags); \ |
178 | __ret; \ |
179 | }) |
180 | |
181 | #define this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) \ |
182 | ({ \ |
183 | bool __ret; \ |
184 | unsigned long __flags; \ |
185 | raw_local_irq_save(__flags); \ |
186 | __ret = raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval); \ |
187 | raw_local_irq_restore(__flags); \ |
188 | __ret; \ |
189 | }) |
190 | |
191 | #define this_cpu_generic_cmpxchg(pcp, oval, nval) \ |
192 | ({ \ |
193 | typeof(pcp) __ret; \ |
194 | unsigned long __flags; \ |
195 | raw_local_irq_save(__flags); \ |
196 | __ret = raw_cpu_generic_cmpxchg(pcp, oval, nval); \ |
197 | raw_local_irq_restore(__flags); \ |
198 | __ret; \ |
199 | }) |
200 | |
201 | #ifndef raw_cpu_read_1 |
202 | #define raw_cpu_read_1(pcp) raw_cpu_generic_read(pcp) |
203 | #endif |
204 | #ifndef raw_cpu_read_2 |
205 | #define raw_cpu_read_2(pcp) raw_cpu_generic_read(pcp) |
206 | #endif |
207 | #ifndef raw_cpu_read_4 |
208 | #define raw_cpu_read_4(pcp) raw_cpu_generic_read(pcp) |
209 | #endif |
210 | #ifndef raw_cpu_read_8 |
211 | #define raw_cpu_read_8(pcp) raw_cpu_generic_read(pcp) |
212 | #endif |
213 | |
214 | #ifndef raw_cpu_write_1 |
215 | #define raw_cpu_write_1(pcp, val) raw_cpu_generic_to_op(pcp, val, =) |
216 | #endif |
217 | #ifndef raw_cpu_write_2 |
218 | #define raw_cpu_write_2(pcp, val) raw_cpu_generic_to_op(pcp, val, =) |
219 | #endif |
220 | #ifndef raw_cpu_write_4 |
221 | #define raw_cpu_write_4(pcp, val) raw_cpu_generic_to_op(pcp, val, =) |
222 | #endif |
223 | #ifndef raw_cpu_write_8 |
224 | #define raw_cpu_write_8(pcp, val) raw_cpu_generic_to_op(pcp, val, =) |
225 | #endif |
226 | |
227 | #ifndef raw_cpu_add_1 |
228 | #define raw_cpu_add_1(pcp, val) raw_cpu_generic_to_op(pcp, val, +=) |
229 | #endif |
230 | #ifndef raw_cpu_add_2 |
231 | #define raw_cpu_add_2(pcp, val) raw_cpu_generic_to_op(pcp, val, +=) |
232 | #endif |
233 | #ifndef raw_cpu_add_4 |
234 | #define raw_cpu_add_4(pcp, val) raw_cpu_generic_to_op(pcp, val, +=) |
235 | #endif |
236 | #ifndef raw_cpu_add_8 |
237 | #define raw_cpu_add_8(pcp, val) raw_cpu_generic_to_op(pcp, val, +=) |
238 | #endif |
239 | |
240 | #ifndef raw_cpu_and_1 |
241 | #define raw_cpu_and_1(pcp, val) raw_cpu_generic_to_op(pcp, val, &=) |
242 | #endif |
243 | #ifndef raw_cpu_and_2 |
244 | #define raw_cpu_and_2(pcp, val) raw_cpu_generic_to_op(pcp, val, &=) |
245 | #endif |
246 | #ifndef raw_cpu_and_4 |
247 | #define raw_cpu_and_4(pcp, val) raw_cpu_generic_to_op(pcp, val, &=) |
248 | #endif |
249 | #ifndef raw_cpu_and_8 |
250 | #define raw_cpu_and_8(pcp, val) raw_cpu_generic_to_op(pcp, val, &=) |
251 | #endif |
252 | |
253 | #ifndef raw_cpu_or_1 |
254 | #define raw_cpu_or_1(pcp, val) raw_cpu_generic_to_op(pcp, val, |=) |
255 | #endif |
256 | #ifndef raw_cpu_or_2 |
257 | #define raw_cpu_or_2(pcp, val) raw_cpu_generic_to_op(pcp, val, |=) |
258 | #endif |
259 | #ifndef raw_cpu_or_4 |
260 | #define raw_cpu_or_4(pcp, val) raw_cpu_generic_to_op(pcp, val, |=) |
261 | #endif |
262 | #ifndef raw_cpu_or_8 |
263 | #define raw_cpu_or_8(pcp, val) raw_cpu_generic_to_op(pcp, val, |=) |
264 | #endif |
265 | |
266 | #ifndef raw_cpu_add_return_1 |
267 | #define raw_cpu_add_return_1(pcp, val) raw_cpu_generic_add_return(pcp, val) |
268 | #endif |
269 | #ifndef raw_cpu_add_return_2 |
270 | #define raw_cpu_add_return_2(pcp, val) raw_cpu_generic_add_return(pcp, val) |
271 | #endif |
272 | #ifndef raw_cpu_add_return_4 |
273 | #define raw_cpu_add_return_4(pcp, val) raw_cpu_generic_add_return(pcp, val) |
274 | #endif |
275 | #ifndef raw_cpu_add_return_8 |
276 | #define raw_cpu_add_return_8(pcp, val) raw_cpu_generic_add_return(pcp, val) |
277 | #endif |
278 | |
279 | #ifndef raw_cpu_xchg_1 |
280 | #define raw_cpu_xchg_1(pcp, nval) raw_cpu_generic_xchg(pcp, nval) |
281 | #endif |
282 | #ifndef raw_cpu_xchg_2 |
283 | #define raw_cpu_xchg_2(pcp, nval) raw_cpu_generic_xchg(pcp, nval) |
284 | #endif |
285 | #ifndef raw_cpu_xchg_4 |
286 | #define raw_cpu_xchg_4(pcp, nval) raw_cpu_generic_xchg(pcp, nval) |
287 | #endif |
288 | #ifndef raw_cpu_xchg_8 |
289 | #define raw_cpu_xchg_8(pcp, nval) raw_cpu_generic_xchg(pcp, nval) |
290 | #endif |
291 | |
292 | #ifndef raw_cpu_try_cmpxchg_1 |
293 | #ifdef raw_cpu_cmpxchg_1 |
294 | #define raw_cpu_try_cmpxchg_1(pcp, ovalp, nval) \ |
295 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg_1) |
296 | #else |
297 | #define raw_cpu_try_cmpxchg_1(pcp, ovalp, nval) \ |
298 | raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) |
299 | #endif |
300 | #endif |
301 | #ifndef raw_cpu_try_cmpxchg_2 |
302 | #ifdef raw_cpu_cmpxchg_2 |
303 | #define raw_cpu_try_cmpxchg_2(pcp, ovalp, nval) \ |
304 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg_2) |
305 | #else |
306 | #define raw_cpu_try_cmpxchg_2(pcp, ovalp, nval) \ |
307 | raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) |
308 | #endif |
309 | #endif |
310 | #ifndef raw_cpu_try_cmpxchg_4 |
311 | #ifdef raw_cpu_cmpxchg_4 |
312 | #define raw_cpu_try_cmpxchg_4(pcp, ovalp, nval) \ |
313 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg_4) |
314 | #else |
315 | #define raw_cpu_try_cmpxchg_4(pcp, ovalp, nval) \ |
316 | raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) |
317 | #endif |
318 | #endif |
319 | #ifndef raw_cpu_try_cmpxchg_8 |
320 | #ifdef raw_cpu_cmpxchg_8 |
321 | #define raw_cpu_try_cmpxchg_8(pcp, ovalp, nval) \ |
322 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg_8) |
323 | #else |
324 | #define raw_cpu_try_cmpxchg_8(pcp, ovalp, nval) \ |
325 | raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) |
326 | #endif |
327 | #endif |
328 | |
329 | #ifndef raw_cpu_try_cmpxchg64 |
330 | #ifdef raw_cpu_cmpxchg64 |
331 | #define raw_cpu_try_cmpxchg64(pcp, ovalp, nval) \ |
332 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg64) |
333 | #else |
334 | #define raw_cpu_try_cmpxchg64(pcp, ovalp, nval) \ |
335 | raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) |
336 | #endif |
337 | #endif |
338 | #ifndef raw_cpu_try_cmpxchg128 |
339 | #ifdef raw_cpu_cmpxchg128 |
340 | #define raw_cpu_try_cmpxchg128(pcp, ovalp, nval) \ |
341 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg128) |
342 | #else |
343 | #define raw_cpu_try_cmpxchg128(pcp, ovalp, nval) \ |
344 | raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) |
345 | #endif |
346 | #endif |
347 | |
348 | #ifndef raw_cpu_cmpxchg_1 |
349 | #define raw_cpu_cmpxchg_1(pcp, oval, nval) \ |
350 | raw_cpu_generic_cmpxchg(pcp, oval, nval) |
351 | #endif |
352 | #ifndef raw_cpu_cmpxchg_2 |
353 | #define raw_cpu_cmpxchg_2(pcp, oval, nval) \ |
354 | raw_cpu_generic_cmpxchg(pcp, oval, nval) |
355 | #endif |
356 | #ifndef raw_cpu_cmpxchg_4 |
357 | #define raw_cpu_cmpxchg_4(pcp, oval, nval) \ |
358 | raw_cpu_generic_cmpxchg(pcp, oval, nval) |
359 | #endif |
360 | #ifndef raw_cpu_cmpxchg_8 |
361 | #define raw_cpu_cmpxchg_8(pcp, oval, nval) \ |
362 | raw_cpu_generic_cmpxchg(pcp, oval, nval) |
363 | #endif |
364 | |
365 | #ifndef raw_cpu_cmpxchg64 |
366 | #define raw_cpu_cmpxchg64(pcp, oval, nval) \ |
367 | raw_cpu_generic_cmpxchg(pcp, oval, nval) |
368 | #endif |
369 | #ifndef raw_cpu_cmpxchg128 |
370 | #define raw_cpu_cmpxchg128(pcp, oval, nval) \ |
371 | raw_cpu_generic_cmpxchg(pcp, oval, nval) |
372 | #endif |
373 | |
374 | #ifndef this_cpu_read_1 |
375 | #define this_cpu_read_1(pcp) this_cpu_generic_read(pcp) |
376 | #endif |
377 | #ifndef this_cpu_read_2 |
378 | #define this_cpu_read_2(pcp) this_cpu_generic_read(pcp) |
379 | #endif |
380 | #ifndef this_cpu_read_4 |
381 | #define this_cpu_read_4(pcp) this_cpu_generic_read(pcp) |
382 | #endif |
383 | #ifndef this_cpu_read_8 |
384 | #define this_cpu_read_8(pcp) this_cpu_generic_read(pcp) |
385 | #endif |
386 | |
387 | #ifndef this_cpu_write_1 |
388 | #define this_cpu_write_1(pcp, val) this_cpu_generic_to_op(pcp, val, =) |
389 | #endif |
390 | #ifndef this_cpu_write_2 |
391 | #define this_cpu_write_2(pcp, val) this_cpu_generic_to_op(pcp, val, =) |
392 | #endif |
393 | #ifndef this_cpu_write_4 |
394 | #define this_cpu_write_4(pcp, val) this_cpu_generic_to_op(pcp, val, =) |
395 | #endif |
396 | #ifndef this_cpu_write_8 |
397 | #define this_cpu_write_8(pcp, val) this_cpu_generic_to_op(pcp, val, =) |
398 | #endif |
399 | |
400 | #ifndef this_cpu_add_1 |
401 | #define this_cpu_add_1(pcp, val) this_cpu_generic_to_op(pcp, val, +=) |
402 | #endif |
403 | #ifndef this_cpu_add_2 |
404 | #define this_cpu_add_2(pcp, val) this_cpu_generic_to_op(pcp, val, +=) |
405 | #endif |
406 | #ifndef this_cpu_add_4 |
407 | #define this_cpu_add_4(pcp, val) this_cpu_generic_to_op(pcp, val, +=) |
408 | #endif |
409 | #ifndef this_cpu_add_8 |
410 | #define this_cpu_add_8(pcp, val) this_cpu_generic_to_op(pcp, val, +=) |
411 | #endif |
412 | |
413 | #ifndef this_cpu_and_1 |
414 | #define this_cpu_and_1(pcp, val) this_cpu_generic_to_op(pcp, val, &=) |
415 | #endif |
416 | #ifndef this_cpu_and_2 |
417 | #define this_cpu_and_2(pcp, val) this_cpu_generic_to_op(pcp, val, &=) |
418 | #endif |
419 | #ifndef this_cpu_and_4 |
420 | #define this_cpu_and_4(pcp, val) this_cpu_generic_to_op(pcp, val, &=) |
421 | #endif |
422 | #ifndef this_cpu_and_8 |
423 | #define this_cpu_and_8(pcp, val) this_cpu_generic_to_op(pcp, val, &=) |
424 | #endif |
425 | |
426 | #ifndef this_cpu_or_1 |
427 | #define this_cpu_or_1(pcp, val) this_cpu_generic_to_op(pcp, val, |=) |
428 | #endif |
429 | #ifndef this_cpu_or_2 |
430 | #define this_cpu_or_2(pcp, val) this_cpu_generic_to_op(pcp, val, |=) |
431 | #endif |
432 | #ifndef this_cpu_or_4 |
433 | #define this_cpu_or_4(pcp, val) this_cpu_generic_to_op(pcp, val, |=) |
434 | #endif |
435 | #ifndef this_cpu_or_8 |
436 | #define this_cpu_or_8(pcp, val) this_cpu_generic_to_op(pcp, val, |=) |
437 | #endif |
438 | |
439 | #ifndef this_cpu_add_return_1 |
440 | #define this_cpu_add_return_1(pcp, val) this_cpu_generic_add_return(pcp, val) |
441 | #endif |
442 | #ifndef this_cpu_add_return_2 |
443 | #define this_cpu_add_return_2(pcp, val) this_cpu_generic_add_return(pcp, val) |
444 | #endif |
445 | #ifndef this_cpu_add_return_4 |
446 | #define this_cpu_add_return_4(pcp, val) this_cpu_generic_add_return(pcp, val) |
447 | #endif |
448 | #ifndef this_cpu_add_return_8 |
449 | #define this_cpu_add_return_8(pcp, val) this_cpu_generic_add_return(pcp, val) |
450 | #endif |
451 | |
452 | #ifndef this_cpu_xchg_1 |
453 | #define this_cpu_xchg_1(pcp, nval) this_cpu_generic_xchg(pcp, nval) |
454 | #endif |
455 | #ifndef this_cpu_xchg_2 |
456 | #define this_cpu_xchg_2(pcp, nval) this_cpu_generic_xchg(pcp, nval) |
457 | #endif |
458 | #ifndef this_cpu_xchg_4 |
459 | #define this_cpu_xchg_4(pcp, nval) this_cpu_generic_xchg(pcp, nval) |
460 | #endif |
461 | #ifndef this_cpu_xchg_8 |
462 | #define this_cpu_xchg_8(pcp, nval) this_cpu_generic_xchg(pcp, nval) |
463 | #endif |
464 | |
465 | #ifndef this_cpu_try_cmpxchg_1 |
466 | #ifdef this_cpu_cmpxchg_1 |
467 | #define this_cpu_try_cmpxchg_1(pcp, ovalp, nval) \ |
468 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg_1) |
469 | #else |
470 | #define this_cpu_try_cmpxchg_1(pcp, ovalp, nval) \ |
471 | this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) |
472 | #endif |
473 | #endif |
474 | #ifndef this_cpu_try_cmpxchg_2 |
475 | #ifdef this_cpu_cmpxchg_2 |
476 | #define this_cpu_try_cmpxchg_2(pcp, ovalp, nval) \ |
477 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg_2) |
478 | #else |
479 | #define this_cpu_try_cmpxchg_2(pcp, ovalp, nval) \ |
480 | this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) |
481 | #endif |
482 | #endif |
483 | #ifndef this_cpu_try_cmpxchg_4 |
484 | #ifdef this_cpu_cmpxchg_4 |
485 | #define this_cpu_try_cmpxchg_4(pcp, ovalp, nval) \ |
486 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg_4) |
487 | #else |
488 | #define this_cpu_try_cmpxchg_4(pcp, ovalp, nval) \ |
489 | this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) |
490 | #endif |
491 | #endif |
492 | #ifndef this_cpu_try_cmpxchg_8 |
493 | #ifdef this_cpu_cmpxchg_8 |
494 | #define this_cpu_try_cmpxchg_8(pcp, ovalp, nval) \ |
495 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg_8) |
496 | #else |
497 | #define this_cpu_try_cmpxchg_8(pcp, ovalp, nval) \ |
498 | this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) |
499 | #endif |
500 | #endif |
501 | |
502 | #ifndef this_cpu_try_cmpxchg64 |
503 | #ifdef this_cpu_cmpxchg64 |
504 | #define this_cpu_try_cmpxchg64(pcp, ovalp, nval) \ |
505 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg64) |
506 | #else |
507 | #define this_cpu_try_cmpxchg64(pcp, ovalp, nval) \ |
508 | this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) |
509 | #endif |
510 | #endif |
511 | #ifndef this_cpu_try_cmpxchg128 |
512 | #ifdef this_cpu_cmpxchg128 |
513 | #define this_cpu_try_cmpxchg128(pcp, ovalp, nval) \ |
514 | __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg128) |
515 | #else |
516 | #define this_cpu_try_cmpxchg128(pcp, ovalp, nval) \ |
517 | this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) |
518 | #endif |
519 | #endif |
520 | |
521 | #ifndef this_cpu_cmpxchg_1 |
522 | #define this_cpu_cmpxchg_1(pcp, oval, nval) \ |
523 | this_cpu_generic_cmpxchg(pcp, oval, nval) |
524 | #endif |
525 | #ifndef this_cpu_cmpxchg_2 |
526 | #define this_cpu_cmpxchg_2(pcp, oval, nval) \ |
527 | this_cpu_generic_cmpxchg(pcp, oval, nval) |
528 | #endif |
529 | #ifndef this_cpu_cmpxchg_4 |
530 | #define this_cpu_cmpxchg_4(pcp, oval, nval) \ |
531 | this_cpu_generic_cmpxchg(pcp, oval, nval) |
532 | #endif |
533 | #ifndef this_cpu_cmpxchg_8 |
534 | #define this_cpu_cmpxchg_8(pcp, oval, nval) \ |
535 | this_cpu_generic_cmpxchg(pcp, oval, nval) |
536 | #endif |
537 | |
538 | #ifndef this_cpu_cmpxchg64 |
539 | #define this_cpu_cmpxchg64(pcp, oval, nval) \ |
540 | this_cpu_generic_cmpxchg(pcp, oval, nval) |
541 | #endif |
542 | #ifndef this_cpu_cmpxchg128 |
543 | #define this_cpu_cmpxchg128(pcp, oval, nval) \ |
544 | this_cpu_generic_cmpxchg(pcp, oval, nval) |
545 | #endif |
546 | |
547 | #endif /* _ASM_GENERIC_PERCPU_H_ */ |
548 | |