1 /* 2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. 3 * Copyright 2014 SAP AG. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26 #ifndef SHARE_VM_RUNTIME_ORDERACCESS_INLINE_HPP 27 #define SHARE_VM_RUNTIME_ORDERACCESS_INLINE_HPP 28 29 #include "runtime/atomic.inline.hpp" 30 #include "runtime/orderAccess.hpp" 31 32 // Linux 33 #ifdef TARGET_OS_ARCH_linux_x86 34 # include "orderAccess_linux_x86.inline.hpp" 35 #endif 36 #ifdef TARGET_OS_ARCH_linux_sparc 37 # include "orderAccess_linux_sparc.inline.hpp" 38 #endif 39 #ifdef TARGET_OS_ARCH_linux_zero 40 # include "orderAccess_linux_zero.inline.hpp" 41 #endif 42 #ifdef TARGET_OS_ARCH_linux_arm 43 # include "orderAccess_linux_arm.inline.hpp" 44 #endif 45 #ifdef TARGET_OS_ARCH_linux_ppc 46 # include "orderAccess_linux_ppc.inline.hpp" 47 #endif 48 49 // Solaris 50 #ifdef TARGET_OS_ARCH_solaris_x86 51 # include "orderAccess_solaris_x86.inline.hpp" 52 #endif 53 #ifdef TARGET_OS_ARCH_solaris_sparc 54 # include "orderAccess_solaris_sparc.inline.hpp" 55 #endif 56 57 // Windows 58 #ifdef TARGET_OS_ARCH_windows_x86 59 # include "orderAccess_windows_x86.inline.hpp" 60 #endif 61 62 // AIX 63 #ifdef TARGET_OS_ARCH_aix_ppc 64 # include "orderAccess_aix_ppc.inline.hpp" 65 #endif 66 67 // BSD 68 #ifdef TARGET_OS_ARCH_bsd_x86 69 # include "orderAccess_bsd_x86.inline.hpp" 70 #endif 71 #ifdef TARGET_OS_ARCH_bsd_zero 72 # include "orderAccess_bsd_zero.inline.hpp" 73 #endif 74 75 #ifdef VM_HAS_GENERALIZED_ORDER_ACCESS 76 77 template<> inline void ScopedFenceGeneral<X_ACQUIRE>::postfix() { OrderAccess::acquire(); } 78 template<> inline void ScopedFenceGeneral<RELEASE_X>::prefix() { OrderAccess::release(); } 79 template<> inline void ScopedFenceGeneral<RELEASE_X_FENCE>::prefix() { OrderAccess::release(); } 80 template<> inline void ScopedFenceGeneral<RELEASE_X_FENCE>::postfix() { OrderAccess::fence(); } 81 82 83 template <typename FieldType, ScopedFenceType FenceType> 84 inline void OrderAccess::ordered_store(volatile FieldType* p, FieldType v) { 85 ScopedFence<FenceType> f((void*)p); 86 store(p, v); 87 } 88 89 template <typename FieldType, ScopedFenceType FenceType> 90 inline FieldType OrderAccess::ordered_load(volatile FieldType* p) { 91 ScopedFence<FenceType> f((void*)p); 92 return load(p); 93 } 94 95 inline jbyte OrderAccess::load_acquire(volatile jbyte* p) { return specialized_load_acquire(p); } 96 inline jshort OrderAccess::load_acquire(volatile jshort* p) { return specialized_load_acquire(p); } 97 inline jint OrderAccess::load_acquire(volatile jint* p) { return specialized_load_acquire(p); } 98 inline jlong OrderAccess::load_acquire(volatile jlong* p) { return specialized_load_acquire(p); } 99 inline jfloat OrderAccess::load_acquire(volatile jfloat* p) { return specialized_load_acquire(p); } 100 inline jdouble OrderAccess::load_acquire(volatile jdouble* p) { return specialized_load_acquire(p); } 101 inline jubyte OrderAccess::load_acquire(volatile jubyte* p) { return (jubyte) specialized_load_acquire((volatile jbyte*)p); } 102 inline jushort OrderAccess::load_acquire(volatile jushort* p) { return (jushort)specialized_load_acquire((volatile jshort*)p); } 103 inline juint OrderAccess::load_acquire(volatile juint* p) { return (juint) specialized_load_acquire((volatile jint*)p); } 104 inline julong OrderAccess::load_acquire(volatile julong* p) { return (julong) specialized_load_acquire((volatile jlong*)p); } 105 106 inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t* p) { return (intptr_t)specialized_load_acquire(p); } 107 inline void* OrderAccess::load_ptr_acquire(volatile void* p) { return (void*)specialized_load_acquire((volatile intptr_t*)p); } 108 inline void* OrderAccess::load_ptr_acquire(const volatile void* p) { return (void*)specialized_load_acquire((volatile intptr_t*)p); } 109 110 inline void OrderAccess::release_store(volatile jbyte* p, jbyte v) { specialized_release_store(p, v); } 111 inline void OrderAccess::release_store(volatile jshort* p, jshort v) { specialized_release_store(p, v); } 112 inline void OrderAccess::release_store(volatile jint* p, jint v) { specialized_release_store(p, v); } 113 inline void OrderAccess::release_store(volatile jlong* p, jlong v) { specialized_release_store(p, v); } 114 inline void OrderAccess::release_store(volatile jfloat* p, jfloat v) { specialized_release_store(p, v); } 115 inline void OrderAccess::release_store(volatile jdouble* p, jdouble v) { specialized_release_store(p, v); } 116 inline void OrderAccess::release_store(volatile jubyte* p, jubyte v) { specialized_release_store((volatile jbyte*) p, (jbyte) v); } 117 inline void OrderAccess::release_store(volatile jushort* p, jushort v) { specialized_release_store((volatile jshort*)p, (jshort)v); } 118 inline void OrderAccess::release_store(volatile juint* p, juint v) { specialized_release_store((volatile jint*) p, (jint) v); } 119 inline void OrderAccess::release_store(volatile julong* p, julong v) { specialized_release_store((volatile jlong*) p, (jlong) v); } 120 121 inline void OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { specialized_release_store(p, v); } 122 inline void OrderAccess::release_store_ptr(volatile void* p, void* v) { specialized_release_store((volatile intptr_t*)p, (intptr_t)v); } 123 124 inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) { specialized_release_store_fence(p, v); } 125 inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) { specialized_release_store_fence(p, v); } 126 inline void OrderAccess::release_store_fence(volatile jint* p, jint v) { specialized_release_store_fence(p, v); } 127 inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { specialized_release_store_fence(p, v); } 128 inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { specialized_release_store_fence(p, v); } 129 inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { specialized_release_store_fence(p, v); } 130 inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { specialized_release_store_fence((volatile jbyte*) p, (jbyte) v); } 131 inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { specialized_release_store_fence((volatile jshort*)p, (jshort)v); } 132 inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { specialized_release_store_fence((volatile jint*) p, (jint) v); } 133 inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { specialized_release_store_fence((volatile jlong*) p, (jlong) v); } 134 135 inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { specialized_release_store_fence(p, v); } 136 inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) { specialized_release_store_fence((volatile intptr_t*)p, (intptr_t)v); } 137 138 // The following methods can be specialized using simple template specialization 139 // in the platform specific files for optimization purposes. Otherwise the 140 // generalized variant is used. 141 template<typename T> inline T OrderAccess::specialized_load_acquire (volatile T* p) { return ordered_load<T, X_ACQUIRE>(p); } 142 template<typename T> inline void OrderAccess::specialized_release_store (volatile T* p, T v) { ordered_store<T, RELEASE_X>(p, v); } 143 template<typename T> inline void OrderAccess::specialized_release_store_fence(volatile T* p, T v) { ordered_store<T, RELEASE_X_FENCE>(p, v); } 144 145 // Generalized atomic volatile accesses valid in OrderAccess 146 // All other types can be expressed in terms of these. 147 inline void OrderAccess::store(volatile jbyte* p, jbyte v) { *p = v; } 148 inline void OrderAccess::store(volatile jshort* p, jshort v) { *p = v; } 149 inline void OrderAccess::store(volatile jint* p, jint v) { *p = v; } 150 inline void OrderAccess::store(volatile jlong* p, jlong v) { Atomic::store(v, p); } 151 inline void OrderAccess::store(volatile jdouble* p, jdouble v) { Atomic::store(jlong_cast(v), (volatile jlong*)p); } 152 inline void OrderAccess::store(volatile jfloat* p, jfloat v) { *p = v; } 153 154 inline jbyte OrderAccess::load(volatile jbyte* p) { return *p; } 155 inline jshort OrderAccess::load(volatile jshort* p) { return *p; } 156 inline jint OrderAccess::load(volatile jint* p) { return *p; } 157 inline jlong OrderAccess::load(volatile jlong* p) { return Atomic::load(p); } 158 inline jdouble OrderAccess::load(volatile jdouble* p) { return jdouble_cast(Atomic::load((volatile jlong*)p)); } 159 inline jfloat OrderAccess::load(volatile jfloat* p) { return *p; } 160 161 #endif // VM_HAS_GENERALIZED_ORDER_ACCESS 162 163 #endif // SHARE_VM_RUNTIME_ORDERACCESS_INLINE_HPP