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.
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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.
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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