Mercurial > hg > truffle
annotate src/os_cpu/linux_sparc/vm/atomic_linux_sparc.inline.hpp @ 4837:eff609af17d7
7127706: G1: re-enable survivors during the initial-mark pause
Summary: Re-enable survivors during the initial-mark pause. Afterwards, the concurrent marking threads have to scan them and mark everything reachable from them. The next GC will have to wait for the survivors to be scanned.
Reviewed-by: brutisso, johnc
| author | tonyp |
|---|---|
| date | Wed, 25 Jan 2012 12:58:23 -0500 |
| parents | 4fc084dac61e |
| children | 63e54c37ac64 |
| rev | line source |
|---|---|
| 133 | 1 /* |
|
2114
4fc084dac61e
7009756: volatile variables could be broken throw reflection API
kvn
parents:
1972
diff
changeset
|
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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
196
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
196
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
196
diff
changeset
|
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 | |
|
2114
4fc084dac61e
7009756: volatile variables could be broken throw reflection API
kvn
parents:
1972
diff
changeset
|
57 inline jlong Atomic::load(volatile jlong* src) { return *src; } |
|
4fc084dac61e
7009756: volatile variables could be broken throw reflection API
kvn
parents:
1972
diff
changeset
|
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 |