1 /* 2 * Copyright (c) 1999, 2017, 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_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP 26 #define OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP 27 28 #include "runtime/os.hpp" 29 30 // Implementation of class atomic 31 32 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; } 33 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; } 34 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; } 35 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; } 36 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; } 37 38 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; } 39 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; } 40 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; } 41 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; } 42 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; } 43 44 inline void Atomic::inc (volatile jint* dest) { (void)add (1, dest); } 45 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); } 46 inline void Atomic::inc_ptr(volatile void* dest) { (void)add_ptr(1, dest); } 47 48 inline void Atomic::dec (volatile jint* dest) { (void)add (-1, dest); } 49 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); } 50 inline void Atomic::dec_ptr(volatile void* dest) { (void)add_ptr(-1, dest); } 51 52 53 inline void Atomic::store(jlong store_value, jlong* dest) { *dest = store_value; } 54 inline void Atomic::store(jlong store_value, volatile jlong* dest) { *dest = store_value; } 55 inline jlong Atomic::load(const volatile jlong* src) { return *src; } 56 57 58 // This is the interface to the atomic instructions in solaris_sparc.il. 59 // It's very messy because we need to support v8 and these instructions 60 // are illegal there. When sparc v8 is dropped, we can drop out lots of 61 // this code. Also compiler2 does not support v8 so the conditional code 62 // omits the instruction set check. 63 64 extern "C" jint _Atomic_swap32(jint exchange_value, volatile jint* dest); 65 extern "C" intptr_t _Atomic_swap64(intptr_t exchange_value, volatile intptr_t* dest); 66 67 extern "C" jint _Atomic_cas32(jint exchange_value, volatile jint* dest, jint compare_value); 68 extern "C" intptr_t _Atomic_cas64(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value); 69 extern "C" jlong _Atomic_casl (jlong exchange_value, volatile jlong* dest, jlong compare_value); 70 71 extern "C" jint _Atomic_add32(jint inc, volatile jint* dest); 72 extern "C" intptr_t _Atomic_add64(intptr_t add_value, volatile intptr_t* dest); 73 74 75 inline jint Atomic::add (jint add_value, volatile jint* dest) { 76 return _Atomic_add32(add_value, dest); 77 } 78 79 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { 80 return _Atomic_add64(add_value, dest); 81 } 82 83 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { 84 return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); 85 } 86 87 88 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { 89 return _Atomic_swap32(exchange_value, dest); 90 } 91 92 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { 93 return _Atomic_swap64(exchange_value, dest); 94 } 95 96 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { 97 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); 98 } 99 100 101 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value, cmpxchg_memory_order order) { 102 return _Atomic_cas32(exchange_value, dest, compare_value); 103 } 104 105 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value, cmpxchg_memory_order order) { 106 // Return 64 bit value in %o0 107 return _Atomic_cas64((intptr_t)exchange_value, (intptr_t *)dest, (intptr_t)compare_value); 108 } 109 110 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value, cmpxchg_memory_order order) { 111 return _Atomic_cas64(exchange_value, dest, compare_value); 112 } 113 114 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value, cmpxchg_memory_order order) { 115 return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value, order); 116 } 117 118 #endif // OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP