Mercurial > hg > truffle
annotate src/os_cpu/solaris_sparc/vm/atomic_solaris_sparc.inline.hpp @ 4444:7d9469b37f1f
bugfixes
author | Christian Haeubl <christian.haeubl@oracle.com> |
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date | Mon, 23 Jan 2012 18:56:52 -0800 |
parents | f7de3327c683 |
children | 63e54c37ac64 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP |
26 #define OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP | |
27 | |
28 #include "orderAccess_solaris_sparc.inline.hpp" | |
29 #include "runtime/atomic.hpp" | |
30 #include "runtime/os.hpp" | |
31 #include "vm_version_sparc.hpp" | |
32 | |
0 | 33 // Implementation of class atomic |
34 | |
35 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; } | |
36 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; } | |
37 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; } | |
38 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; } | |
39 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; } | |
40 | |
41 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; } | |
42 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; } | |
43 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; } | |
44 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; } | |
45 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; } | |
46 | |
47 inline void Atomic::inc (volatile jint* dest) { (void)add (1, dest); } | |
48 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); } | |
49 inline void Atomic::inc_ptr(volatile void* dest) { (void)add_ptr(1, dest); } | |
50 | |
51 inline void Atomic::dec (volatile jint* dest) { (void)add (-1, dest); } | |
52 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); } | |
53 inline void Atomic::dec_ptr(volatile void* dest) { (void)add_ptr(-1, dest); } | |
54 | |
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55 |
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56 #ifdef _LP64 |
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57 |
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58 inline void Atomic::store(jlong store_value, jlong* dest) { *dest = store_value; } |
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59 inline void Atomic::store(jlong store_value, volatile jlong* dest) { *dest = store_value; } |
894 | 60 inline jlong Atomic::load(volatile jlong* src) { return *src; } |
61 | |
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62 #else |
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63 |
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64 extern "C" void _Atomic_move_long_v8(volatile jlong* src, volatile jlong* dst); |
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65 extern "C" void _Atomic_move_long_v9(volatile jlong* src, volatile jlong* dst); |
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66 |
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67 inline void Atomic_move_long(volatile jlong* src, volatile jlong* dst) { |
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68 #ifdef COMPILER2 |
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69 // Compiler2 does not support v8, it is used only for v9. |
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70 _Atomic_move_long_v9(src, dst); |
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71 #else |
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72 // The branch is cheaper then emulated LDD. |
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73 if (VM_Version::v9_instructions_work()) { |
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74 _Atomic_move_long_v9(src, dst); |
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75 } else { |
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76 _Atomic_move_long_v8(src, dst); |
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77 } |
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78 #endif |
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79 } |
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80 |
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81 inline jlong Atomic::load(volatile jlong* src) { |
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82 volatile jlong dest; |
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83 Atomic_move_long(src, &dest); |
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84 return dest; |
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85 } |
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86 |
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87 inline void Atomic::store(jlong store_value, jlong* dest) { |
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88 Atomic_move_long((volatile jlong*)&store_value, (volatile jlong*)dest); |
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89 } |
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90 |
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91 inline void Atomic::store(jlong store_value, volatile jlong* dest) { |
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92 Atomic_move_long((volatile jlong*)&store_value, dest); |
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93 } |
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94 |
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95 #endif |
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96 |
0 | 97 #ifdef _GNU_SOURCE |
98 | |
99 inline jint Atomic::add (jint add_value, volatile jint* dest) { | |
100 intptr_t rv; | |
101 __asm__ volatile( | |
102 "1: \n\t" | |
103 " ld [%2], %%o2\n\t" | |
104 " add %1, %%o2, %%o3\n\t" | |
105 " cas [%2], %%o2, %%o3\n\t" | |
106 " cmp %%o2, %%o3\n\t" | |
107 " bne 1b\n\t" | |
108 " nop\n\t" | |
109 " add %1, %%o2, %0\n\t" | |
110 : "=r" (rv) | |
111 : "r" (add_value), "r" (dest) | |
112 : "memory", "o2", "o3"); | |
113 return rv; | |
114 } | |
115 | |
116 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
117 intptr_t rv; | |
118 #ifdef _LP64 | |
119 __asm__ volatile( | |
120 "1: \n\t" | |
121 " ldx [%2], %%o2\n\t" | |
122 " add %0, %%o2, %%o3\n\t" | |
123 " casx [%2], %%o2, %%o3\n\t" | |
124 " cmp %%o2, %%o3\n\t" | |
125 " bne %%xcc, 1b\n\t" | |
126 " nop\n\t" | |
127 " add %0, %%o2, %0\n\t" | |
128 : "=r" (rv) | |
129 : "r" (add_value), "r" (dest) | |
130 : "memory", "o2", "o3"); | |
131 #else //_LP64 | |
132 __asm__ volatile( | |
133 "1: \n\t" | |
134 " ld [%2], %%o2\n\t" | |
135 " add %1, %%o2, %%o3\n\t" | |
136 " cas [%2], %%o2, %%o3\n\t" | |
137 " cmp %%o2, %%o3\n\t" | |
138 " bne 1b\n\t" | |
139 " nop\n\t" | |
140 " add %1, %%o2, %0\n\t" | |
141 : "=r" (rv) | |
142 : "r" (add_value), "r" (dest) | |
143 : "memory", "o2", "o3"); | |
144 #endif // _LP64 | |
145 return rv; | |
146 } | |
147 | |
148 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
149 return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); | |
150 } | |
151 | |
152 | |
153 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
154 intptr_t rv = exchange_value; | |
155 __asm__ volatile( | |
156 " swap [%2],%1\n\t" | |
157 : "=r" (rv) | |
158 : "0" (exchange_value) /* we use same register as for return value */, "r" (dest) | |
159 : "memory"); | |
160 return rv; | |
161 } | |
162 | |
163 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
164 intptr_t rv = exchange_value; | |
165 #ifdef _LP64 | |
166 __asm__ volatile( | |
167 "1:\n\t" | |
168 " mov %1, %%o3\n\t" | |
169 " ldx [%2], %%o2\n\t" | |
170 " casx [%2], %%o2, %%o3\n\t" | |
171 " cmp %%o2, %%o3\n\t" | |
172 " bne %%xcc, 1b\n\t" | |
173 " nop\n\t" | |
174 " mov %%o2, %0\n\t" | |
175 : "=r" (rv) | |
176 : "r" (exchange_value), "r" (dest) | |
177 : "memory", "o2", "o3"); | |
178 #else //_LP64 | |
179 __asm__ volatile( | |
180 "swap [%2],%1\n\t" | |
181 : "=r" (rv) | |
182 : "0" (exchange_value) /* we use same register as for return value */, "r" (dest) | |
183 : "memory"); | |
184 #endif // _LP64 | |
185 return rv; | |
186 } | |
187 | |
188 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
189 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); | |
190 } | |
191 | |
192 | |
193 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
194 jint rv; | |
195 __asm__ volatile( | |
196 " cas [%2], %3, %0" | |
197 : "=r" (rv) | |
198 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
199 : "memory"); | |
200 return rv; | |
201 } | |
202 | |
203 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
204 #ifdef _LP64 | |
205 jlong rv; | |
206 __asm__ volatile( | |
207 " casx [%2], %3, %0" | |
208 : "=r" (rv) | |
209 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
210 : "memory"); | |
211 return rv; | |
212 #else //_LP64 | |
213 assert(VM_Version::v9_instructions_work(), "cas only supported on v9"); | |
214 volatile jlong_accessor evl, cvl, rv; | |
215 evl.long_value = exchange_value; | |
216 cvl.long_value = compare_value; | |
217 | |
218 __asm__ volatile( | |
219 " sllx %2, 32, %2\n\t" | |
220 " srl %3, 0, %3\n\t" | |
221 " or %2, %3, %2\n\t" | |
222 " sllx %5, 32, %5\n\t" | |
223 " srl %6, 0, %6\n\t" | |
224 " or %5, %6, %5\n\t" | |
225 " casx [%4], %5, %2\n\t" | |
226 " srl %2, 0, %1\n\t" | |
227 " srlx %2, 32, %0\n\t" | |
228 : "=r" (rv.words[0]), "=r" (rv.words[1]) | |
229 : "r" (evl.words[0]), "r" (evl.words[1]), "r" (dest), "r" (cvl.words[0]), "r" (cvl.words[1]) | |
230 : "memory"); | |
231 | |
232 return rv.long_value; | |
233 #endif //_LP64 | |
234 } | |
235 | |
236 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
237 intptr_t rv; | |
238 #ifdef _LP64 | |
239 __asm__ volatile( | |
240 " casx [%2], %3, %0" | |
241 : "=r" (rv) | |
242 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
243 : "memory"); | |
244 #else //_LP64 | |
245 __asm__ volatile( | |
246 " cas [%2], %3, %0" | |
247 : "=r" (rv) | |
248 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
249 : "memory"); | |
250 #endif // _LP64 | |
251 return rv; | |
252 } | |
253 | |
254 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
255 return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value); | |
256 } | |
257 | |
258 #else // _GNU_SOURCE | |
259 | |
260 #if defined(COMPILER2) || defined(_LP64) | |
261 | |
262 // This is the interface to the atomic instructions in solaris_sparc.il. | |
263 // It's very messy because we need to support v8 and these instructions | |
264 // are illegal there. When sparc v8 is dropped, we can drop out lots of | |
265 // this code. Also compiler2 does not support v8 so the conditional code | |
266 // omits the instruction set check. | |
267 | |
268 extern "C" jint _Atomic_swap32(jint exchange_value, volatile jint* dest); | |
269 extern "C" intptr_t _Atomic_swap64(intptr_t exchange_value, volatile intptr_t* dest); | |
270 | |
271 extern "C" jint _Atomic_cas32(jint exchange_value, volatile jint* dest, jint compare_value); | |
272 extern "C" intptr_t _Atomic_cas64(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value); | |
273 extern "C" jlong _Atomic_casl (jlong exchange_value, volatile jlong* dest, jlong compare_value); | |
274 | |
275 extern "C" jint _Atomic_add32(jint inc, volatile jint* dest); | |
276 extern "C" intptr_t _Atomic_add64(intptr_t add_value, volatile intptr_t* dest); | |
277 | |
278 | |
279 inline jint Atomic::add (jint add_value, volatile jint* dest) { | |
280 return _Atomic_add32(add_value, dest); | |
281 } | |
282 | |
283 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
284 #ifdef _LP64 | |
285 return _Atomic_add64(add_value, dest); | |
286 #else //_LP64 | |
287 return _Atomic_add32(add_value, dest); | |
288 #endif // _LP64 | |
289 } | |
290 | |
291 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
292 return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); | |
293 } | |
294 | |
295 | |
296 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
297 return _Atomic_swap32(exchange_value, dest); | |
298 } | |
299 | |
300 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
301 #ifdef _LP64 | |
302 return _Atomic_swap64(exchange_value, dest); | |
303 #else // _LP64 | |
304 return _Atomic_swap32(exchange_value, dest); | |
305 #endif // _LP64 | |
306 } | |
307 | |
308 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
309 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); | |
310 } | |
311 | |
312 | |
313 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
314 return _Atomic_cas32(exchange_value, dest, compare_value); | |
315 } | |
316 | |
317 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
318 #ifdef _LP64 | |
319 // Return 64 bit value in %o0 | |
320 return _Atomic_cas64((intptr_t)exchange_value, (intptr_t *)dest, (intptr_t)compare_value); | |
321 #else // _LP64 | |
322 assert (VM_Version::v9_instructions_work(), "only supported on v9"); | |
323 // Return 64 bit value in %o0,%o1 by hand | |
324 return _Atomic_casl(exchange_value, dest, compare_value); | |
325 #endif // _LP64 | |
326 } | |
327 | |
328 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
329 #ifdef _LP64 | |
330 return _Atomic_cas64(exchange_value, dest, compare_value); | |
331 #else // _LP64 | |
332 return _Atomic_cas32(exchange_value, dest, compare_value); | |
333 #endif // _LP64 | |
334 } | |
335 | |
336 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
337 return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value); | |
338 } | |
339 | |
340 | |
341 #else // _LP64 || COMPILER2 | |
342 | |
343 | |
344 // 32-bit compiler1 only | |
345 | |
346 inline jint Atomic::add (jint add_value, volatile jint* dest) { | |
347 return (*os::atomic_add_func)(add_value, dest); | |
348 } | |
349 | |
350 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
351 return (intptr_t)add((jint)add_value, (volatile jint*)dest); | |
352 } | |
353 | |
354 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
355 return (void*)add((jint)add_value, (volatile jint*)dest); | |
356 } | |
357 | |
358 | |
359 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
360 return (*os::atomic_xchg_func)(exchange_value, dest); | |
361 } | |
362 | |
363 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
364 return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest); | |
365 } | |
366 | |
367 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
368 return (void*)xchg((jint)exchange_value, (volatile jint*)dest); | |
369 } | |
370 | |
371 | |
372 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
373 return (*os::atomic_cmpxchg_func)(exchange_value, dest, compare_value); | |
374 } | |
375 | |
376 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
377 return (*os::atomic_cmpxchg_long_func)(exchange_value, dest, compare_value); | |
378 } | |
379 | |
380 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
381 return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); | |
382 } | |
383 | |
384 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
385 return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); | |
386 } | |
387 | |
388 #endif // _LP64 || COMPILER2 | |
389 | |
390 #endif // _GNU_SOURCE | |
1972 | 391 |
392 #endif // OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP |