atomic_solaris_sparc.hpp revision 13158:bbf76069d7fc 
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
32inline void Atomic::store    (jbyte    store_value, jbyte*    dest) { *dest = store_value; }
33inline void Atomic::store    (jshort   store_value, jshort*   dest) { *dest = store_value; }
34inline void Atomic::store    (jint     store_value, jint*     dest) { *dest = store_value; }
35inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; }
36inline void Atomic::store_ptr(void*    store_value, void*     dest) { *(void**)dest = store_value; }
37
38inline void Atomic::store    (jbyte    store_value, volatile jbyte*    dest) { *dest = store_value; }
39inline void Atomic::store    (jshort   store_value, volatile jshort*   dest) { *dest = store_value; }
40inline void Atomic::store    (jint     store_value, volatile jint*     dest) { *dest = store_value; }
41inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }
42inline void Atomic::store_ptr(void*    store_value, volatile void*     dest) { *(void* volatile *)dest = store_value; }
43
44inline void Atomic::inc    (volatile jint*     dest) { (void)add    (1, dest); }
45inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); }
46inline void Atomic::inc_ptr(volatile void*     dest) { (void)add_ptr(1, dest); }
47
48inline void Atomic::dec    (volatile jint*     dest) { (void)add    (-1, dest); }
49inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); }
50inline void Atomic::dec_ptr(volatile void*     dest) { (void)add_ptr(-1, dest); }
51
52
53inline void Atomic::store(jlong store_value, jlong* dest) { *dest = store_value; }
54inline void Atomic::store(jlong store_value, volatile jlong* dest) { *dest = store_value; }
55inline 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
64extern "C" jint     _Atomic_swap32(jint     exchange_value, volatile jint*     dest);
65extern "C" intptr_t _Atomic_swap64(intptr_t exchange_value, volatile intptr_t* dest);
66
67extern "C" jint     _Atomic_cas32(jint     exchange_value, volatile jint*     dest, jint     compare_value);
68extern "C" intptr_t _Atomic_cas64(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value);
69extern "C" jlong    _Atomic_casl (jlong    exchange_value, volatile jlong*    dest, jlong    compare_value);
70
71extern "C" jint     _Atomic_add32(jint     inc,       volatile jint*     dest);
72extern "C" intptr_t _Atomic_add64(intptr_t add_value, volatile intptr_t* dest);
73
74
75inline jint     Atomic::add     (jint    add_value, volatile jint*     dest) {
76  return _Atomic_add32(add_value, dest);
77}
78
79inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
80  return _Atomic_add64(add_value, dest);
81}
82
83inline 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
88inline jint     Atomic::xchg    (jint     exchange_value, volatile jint*     dest) {
89  return _Atomic_swap32(exchange_value, dest);
90}
91
92inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
93  return _Atomic_swap64(exchange_value, dest);
94}
95
96inline 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
101inline 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
105inline 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
110inline 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
114inline 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
119