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annotate src/os_cpu/solaris_sparc/vm/orderAccess_solaris_sparc.inline.hpp @ 19157:3a2fce66fda0
[SPARC] make CompareAndSwapOp side-effect free.
| author | Josef Eisl <josef.eisl@jku.at> |
|---|---|
| date | Thu, 05 Feb 2015 13:16:09 +0100 |
| parents | 63e54c37ac64 |
| children |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 2003, 2013, 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 | |
| 1972 | 25 #ifndef OS_CPU_SOLARIS_SPARC_VM_ORDERACCESS_SOLARIS_SPARC_INLINE_HPP |
| 26 #define OS_CPU_SOLARIS_SPARC_VM_ORDERACCESS_SOLARIS_SPARC_INLINE_HPP | |
| 27 | |
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28 #include "runtime/atomic.inline.hpp" |
| 1972 | 29 #include "runtime/orderAccess.hpp" |
| 30 #include "vm_version_sparc.hpp" | |
| 31 | |
| 0 | 32 // Implementation of class OrderAccess. |
| 33 | |
| 34 // Assume TSO. | |
| 35 | |
| 36 // In solaris_sparc.il | |
| 37 extern "C" void _OrderAccess_acquire(); | |
| 38 extern "C" void _OrderAccess_fence(); | |
| 39 | |
| 40 inline void OrderAccess::loadload() { acquire(); } | |
| 41 inline void OrderAccess::storestore() { release(); } | |
| 42 inline void OrderAccess::loadstore() { acquire(); } | |
| 43 inline void OrderAccess::storeload() { fence(); } | |
| 44 | |
| 45 #ifdef _GNU_SOURCE | |
| 46 | |
| 47 inline void OrderAccess::acquire() { | |
| 48 __asm__ volatile ("nop" : : :); | |
| 49 } | |
| 50 | |
| 51 inline void OrderAccess::release() { | |
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52 jint* local_dummy = (jint*)&local_dummy; |
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53 __asm__ volatile("stw %%g0, [%0]" : : "r" (local_dummy) : "memory"); |
| 0 | 54 } |
| 55 | |
| 56 inline void OrderAccess::fence() { | |
| 57 __asm__ volatile ("membar #StoreLoad" : : :); | |
| 58 } | |
| 59 | |
| 60 #else // _GNU_SOURCE | |
| 61 | |
| 62 inline void OrderAccess::acquire() { | |
| 63 _OrderAccess_acquire(); | |
| 64 } | |
| 65 | |
| 66 inline void OrderAccess::release() { | |
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67 // Avoid hitting the same cache-line from |
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68 // different threads. |
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69 volatile jint local_dummy = 0; |
| 0 | 70 } |
| 71 | |
| 72 inline void OrderAccess::fence() { | |
| 73 _OrderAccess_fence(); | |
| 74 } | |
| 75 | |
| 76 #endif // _GNU_SOURCE | |
| 77 | |
| 78 inline jbyte OrderAccess::load_acquire(volatile jbyte* p) { return *p; } | |
| 79 inline jshort OrderAccess::load_acquire(volatile jshort* p) { return *p; } | |
| 80 inline jint OrderAccess::load_acquire(volatile jint* p) { return *p; } | |
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81 inline jlong OrderAccess::load_acquire(volatile jlong* p) { return Atomic::load(p); } |
| 0 | 82 inline jubyte OrderAccess::load_acquire(volatile jubyte* p) { return *p; } |
| 83 inline jushort OrderAccess::load_acquire(volatile jushort* p) { return *p; } | |
| 84 inline juint OrderAccess::load_acquire(volatile juint* p) { return *p; } | |
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85 inline julong OrderAccess::load_acquire(volatile julong* p) { return Atomic::load((volatile jlong*)p); } |
| 0 | 86 inline jfloat OrderAccess::load_acquire(volatile jfloat* p) { return *p; } |
| 87 inline jdouble OrderAccess::load_acquire(volatile jdouble* p) { return *p; } | |
| 88 | |
| 89 inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t* p) { return *p; } | |
| 90 inline void* OrderAccess::load_ptr_acquire(volatile void* p) { return *(void* volatile *)p; } | |
| 91 inline void* OrderAccess::load_ptr_acquire(const volatile void* p) { return *(void* const volatile *)p; } | |
| 92 | |
| 93 inline void OrderAccess::release_store(volatile jbyte* p, jbyte v) { *p = v; } | |
| 94 inline void OrderAccess::release_store(volatile jshort* p, jshort v) { *p = v; } | |
| 95 inline void OrderAccess::release_store(volatile jint* p, jint v) { *p = v; } | |
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96 inline void OrderAccess::release_store(volatile jlong* p, jlong v) { Atomic::store(v, p); } |
| 0 | 97 inline void OrderAccess::release_store(volatile jubyte* p, jubyte v) { *p = v; } |
| 98 inline void OrderAccess::release_store(volatile jushort* p, jushort v) { *p = v; } | |
| 99 inline void OrderAccess::release_store(volatile juint* p, juint v) { *p = v; } | |
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100 inline void OrderAccess::release_store(volatile julong* p, julong v) { Atomic::store((jlong)v, (volatile jlong*)p); } |
| 0 | 101 inline void OrderAccess::release_store(volatile jfloat* p, jfloat v) { *p = v; } |
| 102 inline void OrderAccess::release_store(volatile jdouble* p, jdouble v) { *p = v; } | |
| 103 | |
| 104 inline void OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { *p = v; } | |
| 105 inline void OrderAccess::release_store_ptr(volatile void* p, void* v) { *(void* volatile *)p = v; } | |
| 106 | |
| 107 inline void OrderAccess::store_fence(jbyte* p, jbyte v) { *p = v; fence(); } | |
| 108 inline void OrderAccess::store_fence(jshort* p, jshort v) { *p = v; fence(); } | |
| 109 inline void OrderAccess::store_fence(jint* p, jint v) { *p = v; fence(); } | |
| 110 inline void OrderAccess::store_fence(jlong* p, jlong v) { *p = v; fence(); } | |
| 111 inline void OrderAccess::store_fence(jubyte* p, jubyte v) { *p = v; fence(); } | |
| 112 inline void OrderAccess::store_fence(jushort* p, jushort v) { *p = v; fence(); } | |
| 113 inline void OrderAccess::store_fence(juint* p, juint v) { *p = v; fence(); } | |
| 114 inline void OrderAccess::store_fence(julong* p, julong v) { *p = v; fence(); } | |
| 115 inline void OrderAccess::store_fence(jfloat* p, jfloat v) { *p = v; fence(); } | |
| 116 inline void OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); } | |
| 117 | |
| 118 inline void OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; fence(); } | |
| 119 inline void OrderAccess::store_ptr_fence(void** p, void* v) { *p = v; fence(); } | |
| 120 | |
| 121 inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) { *p = v; fence(); } | |
| 122 inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) { *p = v; fence(); } | |
| 123 inline void OrderAccess::release_store_fence(volatile jint* p, jint v) { *p = v; fence(); } | |
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124 inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { release_store(p, v); fence(); } |
| 0 | 125 inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { *p = v; fence(); } |
| 126 inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { *p = v; fence(); } | |
| 127 inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { *p = v; fence(); } | |
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128 inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { release_store(p, v); fence(); } |
| 0 | 129 inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { *p = v; fence(); } |
| 130 inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { *p = v; fence(); } | |
| 131 | |
| 132 inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { *p = v; fence(); } | |
| 133 inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) { *(void* volatile *)p = v; fence(); } | |
| 1972 | 134 |
| 135 #endif // OS_CPU_SOLARIS_SPARC_VM_ORDERACCESS_SOLARIS_SPARC_INLINE_HPP |