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annotate src/os_cpu/solaris_sparc/vm/atomic_solaris_sparc.inline.hpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
author | trims |
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date | Thu, 27 May 2010 19:08:38 -0700 |
parents | 89e0543e1737 |
children | f95d63e2154a |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2009, 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 | |
25 // Implementation of class atomic | |
26 | |
27 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; } | |
28 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; } | |
29 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; } | |
30 inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; } | |
31 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; } | |
32 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; } | |
33 | |
34 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; } | |
35 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; } | |
36 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; } | |
37 inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; } | |
38 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; } | |
39 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; } | |
40 | |
41 inline void Atomic::inc (volatile jint* dest) { (void)add (1, dest); } | |
42 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); } | |
43 inline void Atomic::inc_ptr(volatile void* dest) { (void)add_ptr(1, dest); } | |
44 | |
45 inline void Atomic::dec (volatile jint* dest) { (void)add (-1, dest); } | |
46 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); } | |
47 inline void Atomic::dec_ptr(volatile void* dest) { (void)add_ptr(-1, dest); } | |
48 | |
894 | 49 inline jlong Atomic::load(volatile jlong* src) { return *src; } |
50 | |
0 | 51 #ifdef _GNU_SOURCE |
52 | |
53 inline jint Atomic::add (jint add_value, volatile jint* dest) { | |
54 intptr_t rv; | |
55 __asm__ volatile( | |
56 "1: \n\t" | |
57 " ld [%2], %%o2\n\t" | |
58 " add %1, %%o2, %%o3\n\t" | |
59 " cas [%2], %%o2, %%o3\n\t" | |
60 " cmp %%o2, %%o3\n\t" | |
61 " bne 1b\n\t" | |
62 " nop\n\t" | |
63 " add %1, %%o2, %0\n\t" | |
64 : "=r" (rv) | |
65 : "r" (add_value), "r" (dest) | |
66 : "memory", "o2", "o3"); | |
67 return rv; | |
68 } | |
69 | |
70 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
71 intptr_t rv; | |
72 #ifdef _LP64 | |
73 __asm__ volatile( | |
74 "1: \n\t" | |
75 " ldx [%2], %%o2\n\t" | |
76 " add %0, %%o2, %%o3\n\t" | |
77 " casx [%2], %%o2, %%o3\n\t" | |
78 " cmp %%o2, %%o3\n\t" | |
79 " bne %%xcc, 1b\n\t" | |
80 " nop\n\t" | |
81 " add %0, %%o2, %0\n\t" | |
82 : "=r" (rv) | |
83 : "r" (add_value), "r" (dest) | |
84 : "memory", "o2", "o3"); | |
85 #else //_LP64 | |
86 __asm__ volatile( | |
87 "1: \n\t" | |
88 " ld [%2], %%o2\n\t" | |
89 " add %1, %%o2, %%o3\n\t" | |
90 " cas [%2], %%o2, %%o3\n\t" | |
91 " cmp %%o2, %%o3\n\t" | |
92 " bne 1b\n\t" | |
93 " nop\n\t" | |
94 " add %1, %%o2, %0\n\t" | |
95 : "=r" (rv) | |
96 : "r" (add_value), "r" (dest) | |
97 : "memory", "o2", "o3"); | |
98 #endif // _LP64 | |
99 return rv; | |
100 } | |
101 | |
102 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
103 return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); | |
104 } | |
105 | |
106 | |
107 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
108 intptr_t rv = exchange_value; | |
109 __asm__ volatile( | |
110 " swap [%2],%1\n\t" | |
111 : "=r" (rv) | |
112 : "0" (exchange_value) /* we use same register as for return value */, "r" (dest) | |
113 : "memory"); | |
114 return rv; | |
115 } | |
116 | |
117 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
118 intptr_t rv = exchange_value; | |
119 #ifdef _LP64 | |
120 __asm__ volatile( | |
121 "1:\n\t" | |
122 " mov %1, %%o3\n\t" | |
123 " ldx [%2], %%o2\n\t" | |
124 " casx [%2], %%o2, %%o3\n\t" | |
125 " cmp %%o2, %%o3\n\t" | |
126 " bne %%xcc, 1b\n\t" | |
127 " nop\n\t" | |
128 " mov %%o2, %0\n\t" | |
129 : "=r" (rv) | |
130 : "r" (exchange_value), "r" (dest) | |
131 : "memory", "o2", "o3"); | |
132 #else //_LP64 | |
133 __asm__ volatile( | |
134 "swap [%2],%1\n\t" | |
135 : "=r" (rv) | |
136 : "0" (exchange_value) /* we use same register as for return value */, "r" (dest) | |
137 : "memory"); | |
138 #endif // _LP64 | |
139 return rv; | |
140 } | |
141 | |
142 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
143 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); | |
144 } | |
145 | |
146 | |
147 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
148 jint rv; | |
149 __asm__ volatile( | |
150 " cas [%2], %3, %0" | |
151 : "=r" (rv) | |
152 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
153 : "memory"); | |
154 return rv; | |
155 } | |
156 | |
157 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
158 #ifdef _LP64 | |
159 jlong rv; | |
160 __asm__ volatile( | |
161 " casx [%2], %3, %0" | |
162 : "=r" (rv) | |
163 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
164 : "memory"); | |
165 return rv; | |
166 #else //_LP64 | |
167 assert(VM_Version::v9_instructions_work(), "cas only supported on v9"); | |
168 volatile jlong_accessor evl, cvl, rv; | |
169 evl.long_value = exchange_value; | |
170 cvl.long_value = compare_value; | |
171 | |
172 __asm__ volatile( | |
173 " sllx %2, 32, %2\n\t" | |
174 " srl %3, 0, %3\n\t" | |
175 " or %2, %3, %2\n\t" | |
176 " sllx %5, 32, %5\n\t" | |
177 " srl %6, 0, %6\n\t" | |
178 " or %5, %6, %5\n\t" | |
179 " casx [%4], %5, %2\n\t" | |
180 " srl %2, 0, %1\n\t" | |
181 " srlx %2, 32, %0\n\t" | |
182 : "=r" (rv.words[0]), "=r" (rv.words[1]) | |
183 : "r" (evl.words[0]), "r" (evl.words[1]), "r" (dest), "r" (cvl.words[0]), "r" (cvl.words[1]) | |
184 : "memory"); | |
185 | |
186 return rv.long_value; | |
187 #endif //_LP64 | |
188 } | |
189 | |
190 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
191 intptr_t rv; | |
192 #ifdef _LP64 | |
193 __asm__ volatile( | |
194 " casx [%2], %3, %0" | |
195 : "=r" (rv) | |
196 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
197 : "memory"); | |
198 #else //_LP64 | |
199 __asm__ volatile( | |
200 " cas [%2], %3, %0" | |
201 : "=r" (rv) | |
202 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
203 : "memory"); | |
204 #endif // _LP64 | |
205 return rv; | |
206 } | |
207 | |
208 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
209 return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value); | |
210 } | |
211 | |
212 #else // _GNU_SOURCE | |
213 | |
214 #if defined(COMPILER2) || defined(_LP64) | |
215 | |
216 // This is the interface to the atomic instructions in solaris_sparc.il. | |
217 // It's very messy because we need to support v8 and these instructions | |
218 // are illegal there. When sparc v8 is dropped, we can drop out lots of | |
219 // this code. Also compiler2 does not support v8 so the conditional code | |
220 // omits the instruction set check. | |
221 | |
222 extern "C" jint _Atomic_swap32(jint exchange_value, volatile jint* dest); | |
223 extern "C" intptr_t _Atomic_swap64(intptr_t exchange_value, volatile intptr_t* dest); | |
224 | |
225 extern "C" jint _Atomic_cas32(jint exchange_value, volatile jint* dest, jint compare_value); | |
226 extern "C" intptr_t _Atomic_cas64(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value); | |
227 extern "C" jlong _Atomic_casl (jlong exchange_value, volatile jlong* dest, jlong compare_value); | |
228 | |
229 extern "C" jint _Atomic_add32(jint inc, volatile jint* dest); | |
230 extern "C" intptr_t _Atomic_add64(intptr_t add_value, volatile intptr_t* dest); | |
231 | |
232 | |
233 inline jint Atomic::add (jint add_value, volatile jint* dest) { | |
234 return _Atomic_add32(add_value, dest); | |
235 } | |
236 | |
237 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
238 #ifdef _LP64 | |
239 return _Atomic_add64(add_value, dest); | |
240 #else //_LP64 | |
241 return _Atomic_add32(add_value, dest); | |
242 #endif // _LP64 | |
243 } | |
244 | |
245 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
246 return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); | |
247 } | |
248 | |
249 | |
250 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
251 return _Atomic_swap32(exchange_value, dest); | |
252 } | |
253 | |
254 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
255 #ifdef _LP64 | |
256 return _Atomic_swap64(exchange_value, dest); | |
257 #else // _LP64 | |
258 return _Atomic_swap32(exchange_value, dest); | |
259 #endif // _LP64 | |
260 } | |
261 | |
262 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
263 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); | |
264 } | |
265 | |
266 | |
267 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
268 return _Atomic_cas32(exchange_value, dest, compare_value); | |
269 } | |
270 | |
271 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
272 #ifdef _LP64 | |
273 // Return 64 bit value in %o0 | |
274 return _Atomic_cas64((intptr_t)exchange_value, (intptr_t *)dest, (intptr_t)compare_value); | |
275 #else // _LP64 | |
276 assert (VM_Version::v9_instructions_work(), "only supported on v9"); | |
277 // Return 64 bit value in %o0,%o1 by hand | |
278 return _Atomic_casl(exchange_value, dest, compare_value); | |
279 #endif // _LP64 | |
280 } | |
281 | |
282 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
283 #ifdef _LP64 | |
284 return _Atomic_cas64(exchange_value, dest, compare_value); | |
285 #else // _LP64 | |
286 return _Atomic_cas32(exchange_value, dest, compare_value); | |
287 #endif // _LP64 | |
288 } | |
289 | |
290 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
291 return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value); | |
292 } | |
293 | |
294 | |
295 #else // _LP64 || COMPILER2 | |
296 | |
297 | |
298 // 32-bit compiler1 only | |
299 | |
300 inline jint Atomic::add (jint add_value, volatile jint* dest) { | |
301 return (*os::atomic_add_func)(add_value, dest); | |
302 } | |
303 | |
304 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
305 return (intptr_t)add((jint)add_value, (volatile jint*)dest); | |
306 } | |
307 | |
308 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
309 return (void*)add((jint)add_value, (volatile jint*)dest); | |
310 } | |
311 | |
312 | |
313 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
314 return (*os::atomic_xchg_func)(exchange_value, dest); | |
315 } | |
316 | |
317 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
318 return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest); | |
319 } | |
320 | |
321 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
322 return (void*)xchg((jint)exchange_value, (volatile jint*)dest); | |
323 } | |
324 | |
325 | |
326 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
327 return (*os::atomic_cmpxchg_func)(exchange_value, dest, compare_value); | |
328 } | |
329 | |
330 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
331 return (*os::atomic_cmpxchg_long_func)(exchange_value, dest, compare_value); | |
332 } | |
333 | |
334 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
335 return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); | |
336 } | |
337 | |
338 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
339 return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); | |
340 } | |
341 | |
342 #endif // _LP64 || COMPILER2 | |
343 | |
344 #endif // _GNU_SOURCE |