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annotate src/os_cpu/linux_sparc/vm/atomic_linux_sparc.inline.hpp @ 8082:9e2da96f9976
Merge
author | bpittore |
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date | Fri, 08 Feb 2013 16:08:17 -0500 |
parents | 4fc084dac61e |
children | 63e54c37ac64 |
rev | line source |
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133 | 1 /* |
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2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
133 | 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. |
133 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef OS_CPU_LINUX_SPARC_VM_ATOMIC_LINUX_SPARC_INLINE_HPP |
26 #define OS_CPU_LINUX_SPARC_VM_ATOMIC_LINUX_SPARC_INLINE_HPP | |
27 | |
28 #include "orderAccess_linux_sparc.inline.hpp" | |
29 #include "runtime/atomic.hpp" | |
30 #include "runtime/os.hpp" | |
31 #include "vm_version_sparc.hpp" | |
32 | |
133 | 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 (jlong store_value, jlong* dest) { *dest = store_value; } | |
39 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; } | |
40 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; } | |
41 | |
42 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; } | |
43 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; } | |
44 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; } | |
45 inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; } | |
46 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; } | |
47 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; } | |
48 | |
49 inline void Atomic::inc (volatile jint* dest) { (void)add (1, dest); } | |
50 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); } | |
51 inline void Atomic::inc_ptr(volatile void* dest) { (void)add_ptr(1, dest); } | |
52 | |
53 inline void Atomic::dec (volatile jint* dest) { (void)add (-1, dest); } | |
54 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); } | |
55 inline void Atomic::dec_ptr(volatile void* dest) { (void)add_ptr(-1, dest); } | |
56 | |
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57 inline jlong Atomic::load(volatile jlong* src) { return *src; } |
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58 |
133 | 59 inline jint Atomic::add (jint add_value, volatile jint* dest) { |
60 intptr_t rv; | |
61 __asm__ volatile( | |
62 "1: \n\t" | |
63 " ld [%2], %%o2\n\t" | |
64 " add %1, %%o2, %%o3\n\t" | |
65 " cas [%2], %%o2, %%o3\n\t" | |
66 " cmp %%o2, %%o3\n\t" | |
67 " bne 1b\n\t" | |
68 " nop\n\t" | |
69 " add %1, %%o2, %0\n\t" | |
70 : "=r" (rv) | |
71 : "r" (add_value), "r" (dest) | |
72 : "memory", "o2", "o3"); | |
73 return rv; | |
74 } | |
75 | |
76 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
77 intptr_t rv; | |
78 #ifdef _LP64 | |
79 __asm__ volatile( | |
80 "1: \n\t" | |
81 " ldx [%2], %%o2\n\t" | |
82 " add %0, %%o2, %%o3\n\t" | |
83 " casx [%2], %%o2, %%o3\n\t" | |
84 " cmp %%o2, %%o3\n\t" | |
85 " bne %%xcc, 1b\n\t" | |
86 " nop\n\t" | |
87 " add %0, %%o2, %0\n\t" | |
88 : "=r" (rv) | |
89 : "r" (add_value), "r" (dest) | |
90 : "memory", "o2", "o3"); | |
91 #else | |
92 __asm__ volatile( | |
93 "1: \n\t" | |
94 " ld [%2], %%o2\n\t" | |
95 " add %1, %%o2, %%o3\n\t" | |
96 " cas [%2], %%o2, %%o3\n\t" | |
97 " cmp %%o2, %%o3\n\t" | |
98 " bne 1b\n\t" | |
99 " nop\n\t" | |
100 " add %1, %%o2, %0\n\t" | |
101 : "=r" (rv) | |
102 : "r" (add_value), "r" (dest) | |
103 : "memory", "o2", "o3"); | |
104 #endif // _LP64 | |
105 return rv; | |
106 } | |
107 | |
108 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
109 return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); | |
110 } | |
111 | |
112 | |
113 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
114 intptr_t rv = exchange_value; | |
115 __asm__ volatile( | |
116 " swap [%2],%1\n\t" | |
117 : "=r" (rv) | |
118 : "0" (exchange_value) /* we use same register as for return value */, "r" (dest) | |
119 : "memory"); | |
120 return rv; | |
121 } | |
122 | |
123 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
124 intptr_t rv = exchange_value; | |
125 #ifdef _LP64 | |
126 __asm__ volatile( | |
127 "1:\n\t" | |
128 " mov %1, %%o3\n\t" | |
129 " ldx [%2], %%o2\n\t" | |
130 " casx [%2], %%o2, %%o3\n\t" | |
131 " cmp %%o2, %%o3\n\t" | |
132 " bne %%xcc, 1b\n\t" | |
133 " nop\n\t" | |
134 " mov %%o2, %0\n\t" | |
135 : "=r" (rv) | |
136 : "r" (exchange_value), "r" (dest) | |
137 : "memory", "o2", "o3"); | |
138 #else | |
139 __asm__ volatile( | |
140 "swap [%2],%1\n\t" | |
141 : "=r" (rv) | |
142 : "0" (exchange_value) /* we use same register as for return value */, "r" (dest) | |
143 : "memory"); | |
144 #endif // _LP64 | |
145 return rv; | |
146 } | |
147 | |
148 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
149 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); | |
150 } | |
151 | |
152 | |
153 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
154 jint rv; | |
155 __asm__ volatile( | |
156 " cas [%2], %3, %0" | |
157 : "=r" (rv) | |
158 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
159 : "memory"); | |
160 return rv; | |
161 } | |
162 | |
163 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
164 #ifdef _LP64 | |
165 jlong rv; | |
166 __asm__ volatile( | |
167 " casx [%2], %3, %0" | |
168 : "=r" (rv) | |
169 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
170 : "memory"); | |
171 return rv; | |
172 #else | |
173 assert(VM_Version::v9_instructions_work(), "cas only supported on v9"); | |
174 volatile jlong_accessor evl, cvl, rv; | |
175 evl.long_value = exchange_value; | |
176 cvl.long_value = compare_value; | |
177 | |
178 __asm__ volatile( | |
179 " sllx %2, 32, %2\n\t" | |
180 " srl %3, 0, %3\n\t" | |
181 " or %2, %3, %2\n\t" | |
182 " sllx %5, 32, %5\n\t" | |
183 " srl %6, 0, %6\n\t" | |
184 " or %5, %6, %5\n\t" | |
185 " casx [%4], %5, %2\n\t" | |
186 " srl %2, 0, %1\n\t" | |
187 " srlx %2, 32, %0\n\t" | |
188 : "=r" (rv.words[0]), "=r" (rv.words[1]) | |
189 : "r" (evl.words[0]), "r" (evl.words[1]), "r" (dest), "r" (cvl.words[0]), "r" (cvl.words[1]) | |
190 : "memory"); | |
191 | |
192 return rv.long_value; | |
193 #endif | |
194 } | |
195 | |
196 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
197 intptr_t rv; | |
198 #ifdef _LP64 | |
199 __asm__ volatile( | |
200 " casx [%2], %3, %0" | |
201 : "=r" (rv) | |
202 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
203 : "memory"); | |
204 #else | |
205 __asm__ volatile( | |
206 " cas [%2], %3, %0" | |
207 : "=r" (rv) | |
208 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
209 : "memory"); | |
210 #endif // _LP64 | |
211 return rv; | |
212 } | |
213 | |
214 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
215 return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value); | |
216 } | |
1972 | 217 |
218 #endif // OS_CPU_LINUX_SPARC_VM_ATOMIC_LINUX_SPARC_INLINE_HPP |