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comparison: src/os_cpu/windows_x86/vm/orderAccess_windows_x86.inline.hpp
src/os_cpu/windows_x86/vm/orderAccess_windows_x86.inline.hpp
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| 1 /* | |
| 2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. | |
| 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 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 #ifndef OS_CPU_WINDOWS_X86_VM_ORDERACCESS_WINDOWS_X86_INLINE_HPP | |
| 26 #define OS_CPU_WINDOWS_X86_VM_ORDERACCESS_WINDOWS_X86_INLINE_HPP | |
| 27 | |
| 28 #include "runtime/atomic.inline.hpp" | |
| 29 #include "runtime/orderAccess.hpp" | |
| 30 #include "runtime/os.hpp" | |
| 31 #include "vm_version_x86.hpp" | |
| 32 | |
| 33 // Implementation of class OrderAccess. | |
| 34 | |
| 35 inline void OrderAccess::loadload() { acquire(); } | |
| 36 inline void OrderAccess::storestore() { release(); } | |
| 37 inline void OrderAccess::loadstore() { acquire(); } | |
| 38 inline void OrderAccess::storeload() { fence(); } | |
| 39 | |
| 40 inline void OrderAccess::acquire() { | |
| 41 #ifndef AMD64 | |
| 42 __asm { | |
| 43 mov eax, dword ptr [esp]; | |
| 44 } | |
| 45 #endif // !AMD64 | |
| 46 } | |
| 47 | |
| 48 inline void OrderAccess::release() { | |
| 49 // A volatile store has release semantics. | |
| 50 volatile jint local_dummy = 0; | |
| 51 } | |
| 52 | |
| 53 inline void OrderAccess::fence() { | |
| 54 #ifdef AMD64 | |
| 55 StubRoutines_fence(); | |
| 56 #else | |
| 57 if (os::is_MP()) { | |
| 58 __asm { | |
| 59 lock add dword ptr [esp], 0; | |
| 60 } | |
| 61 } | |
| 62 #endif // AMD64 | |
| 63 } | |
| 64 | |
| 65 inline jbyte OrderAccess::load_acquire(volatile jbyte* p) { return *p; } | |
| 66 inline jshort OrderAccess::load_acquire(volatile jshort* p) { return *p; } | |
| 67 inline jint OrderAccess::load_acquire(volatile jint* p) { return *p; } | |
| 68 inline jlong OrderAccess::load_acquire(volatile jlong* p) { return Atomic::load(p); } | |
| 69 inline jubyte OrderAccess::load_acquire(volatile jubyte* p) { return *p; } | |
| 70 inline jushort OrderAccess::load_acquire(volatile jushort* p) { return *p; } | |
| 71 inline juint OrderAccess::load_acquire(volatile juint* p) { return *p; } | |
| 72 inline julong OrderAccess::load_acquire(volatile julong* p) { return Atomic::load((volatile jlong*)p); } | |
| 73 inline jfloat OrderAccess::load_acquire(volatile jfloat* p) { return *p; } | |
| 74 inline jdouble OrderAccess::load_acquire(volatile jdouble* p) { return jdouble_cast(Atomic::load((volatile jlong*)p)); } | |
| 75 | |
| 76 inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t* p) { return *p; } | |
| 77 inline void* OrderAccess::load_ptr_acquire(volatile void* p) { return *(void* volatile *)p; } | |
| 78 inline void* OrderAccess::load_ptr_acquire(const volatile void* p) { return *(void* const volatile *)p; } | |
| 79 | |
| 80 inline void OrderAccess::release_store(volatile jbyte* p, jbyte v) { *p = v; } | |
| 81 inline void OrderAccess::release_store(volatile jshort* p, jshort v) { *p = v; } | |
| 82 inline void OrderAccess::release_store(volatile jint* p, jint v) { *p = v; } | |
| 83 inline void OrderAccess::release_store(volatile jlong* p, jlong v) { Atomic::store(v, p); } | |
| 84 inline void OrderAccess::release_store(volatile jubyte* p, jubyte v) { *p = v; } | |
| 85 inline void OrderAccess::release_store(volatile jushort* p, jushort v) { *p = v; } | |
| 86 inline void OrderAccess::release_store(volatile juint* p, juint v) { *p = v; } | |
| 87 inline void OrderAccess::release_store(volatile julong* p, julong v) { Atomic::store((jlong)v, (volatile jlong*)p); } | |
| 88 inline void OrderAccess::release_store(volatile jfloat* p, jfloat v) { *p = v; } | |
| 89 inline void OrderAccess::release_store(volatile jdouble* p, jdouble v) { release_store((volatile jlong*)p, jlong_cast(v)); } | |
| 90 | |
| 91 inline void OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { *p = v; } | |
| 92 inline void OrderAccess::release_store_ptr(volatile void* p, void* v) { *(void* volatile *)p = v; } | |
| 93 | |
| 94 inline void OrderAccess::store_fence(jbyte* p, jbyte v) { | |
| 95 #ifdef AMD64 | |
| 96 *p = v; fence(); | |
| 97 #else | |
| 98 __asm { | |
| 99 mov edx, p; | |
| 100 mov al, v; | |
| 101 xchg al, byte ptr [edx]; | |
| 102 } | |
| 103 #endif // AMD64 | |
| 104 } | |
| 105 | |
| 106 inline void OrderAccess::store_fence(jshort* p, jshort v) { | |
| 107 #ifdef AMD64 | |
| 108 *p = v; fence(); | |
| 109 #else | |
| 110 __asm { | |
| 111 mov edx, p; | |
| 112 mov ax, v; | |
| 113 xchg ax, word ptr [edx]; | |
| 114 } | |
| 115 #endif // AMD64 | |
| 116 } | |
| 117 | |
| 118 inline void OrderAccess::store_fence(jint* p, jint v) { | |
| 119 #ifdef AMD64 | |
| 120 *p = v; fence(); | |
| 121 #else | |
| 122 __asm { | |
| 123 mov edx, p; | |
| 124 mov eax, v; | |
| 125 xchg eax, dword ptr [edx]; | |
| 126 } | |
| 127 #endif // AMD64 | |
| 128 } | |
| 129 | |
| 130 inline void OrderAccess::store_fence(jlong* p, jlong v) { *p = v; fence(); } | |
| 131 inline void OrderAccess::store_fence(jubyte* p, jubyte v) { store_fence((jbyte*)p, (jbyte)v); } | |
| 132 inline void OrderAccess::store_fence(jushort* p, jushort v) { store_fence((jshort*)p, (jshort)v); } | |
| 133 inline void OrderAccess::store_fence(juint* p, juint v) { store_fence((jint*)p, (jint)v); } | |
| 134 inline void OrderAccess::store_fence(julong* p, julong v) { store_fence((jlong*)p, (jlong)v); } | |
| 135 inline void OrderAccess::store_fence(jfloat* p, jfloat v) { *p = v; fence(); } | |
| 136 inline void OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); } | |
| 137 | |
| 138 inline void OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { | |
| 139 #ifdef AMD64 | |
| 140 *p = v; fence(); | |
| 141 #else | |
| 142 store_fence((jint*)p, (jint)v); | |
| 143 #endif // AMD64 | |
| 144 } | |
| 145 | |
| 146 inline void OrderAccess::store_ptr_fence(void** p, void* v) { | |
| 147 #ifdef AMD64 | |
| 148 *p = v; fence(); | |
| 149 #else | |
| 150 store_fence((jint*)p, (jint)v); | |
| 151 #endif // AMD64 | |
| 152 } | |
| 153 | |
| 154 // Must duplicate definitions instead of calling store_fence because we don't want to cast away volatile. | |
| 155 inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) { | |
| 156 #ifdef AMD64 | |
| 157 *p = v; fence(); | |
| 158 #else | |
| 159 __asm { | |
| 160 mov edx, p; | |
| 161 mov al, v; | |
| 162 xchg al, byte ptr [edx]; | |
| 163 } | |
| 164 #endif // AMD64 | |
| 165 } | |
| 166 | |
| 167 inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) { | |
| 168 #ifdef AMD64 | |
| 169 *p = v; fence(); | |
| 170 #else | |
| 171 __asm { | |
| 172 mov edx, p; | |
| 173 mov ax, v; | |
| 174 xchg ax, word ptr [edx]; | |
| 175 } | |
| 176 #endif // AMD64 | |
| 177 } | |
| 178 | |
| 179 inline void OrderAccess::release_store_fence(volatile jint* p, jint v) { | |
| 180 #ifdef AMD64 | |
| 181 *p = v; fence(); | |
| 182 #else | |
| 183 __asm { | |
| 184 mov edx, p; | |
| 185 mov eax, v; | |
| 186 xchg eax, dword ptr [edx]; | |
| 187 } | |
| 188 #endif // AMD64 | |
| 189 } | |
| 190 | |
| 191 inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { release_store(p, v); fence(); } | |
| 192 | |
| 193 inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { release_store_fence((volatile jbyte*)p, (jbyte)v); } | |
| 194 inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { release_store_fence((volatile jshort*)p, (jshort)v); } | |
| 195 inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { release_store_fence((volatile jint*)p, (jint)v); } | |
| 196 inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { release_store_fence((volatile jlong*)p, (jlong)v); } | |
| 197 inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { *p = v; fence(); } | |
| 198 inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { release_store_fence((volatile jlong*)p, jlong_cast(v)); } | |
| 199 | |
| 200 inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { | |
| 201 #ifdef AMD64 | |
| 202 *p = v; fence(); | |
| 203 #else | |
| 204 release_store_fence((volatile jint*)p, (jint)v); | |
| 205 #endif // AMD64 | |
| 206 } | |
| 207 | |
| 208 inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) { | |
| 209 #ifdef AMD64 | |
| 210 *(void* volatile *)p = v; fence(); | |
| 211 #else | |
| 212 release_store_fence((volatile jint*)p, (jint)v); | |
| 213 #endif // AMD64 | |
| 214 } | |
| 215 | |
| 216 #endif // OS_CPU_WINDOWS_X86_VM_ORDERACCESS_WINDOWS_X86_INLINE_HPP |
