orderAccess_solaris_sparc.inline.hpp revision 1472:c18cbe5936b8 
1/*
2 * Copyright (c) 2003, 2009, 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// Implementation of class OrderAccess.
26
27// Assume TSO.
28
29// In solaris_sparc.il
30extern "C" void _OrderAccess_acquire();
31extern "C" void _OrderAccess_fence();
32
33inline void OrderAccess::loadload()   { acquire(); }
34inline void OrderAccess::storestore() { release(); }
35inline void OrderAccess::loadstore()  { acquire(); }
36inline void OrderAccess::storeload()  { fence(); }
37
38#ifdef _GNU_SOURCE
39
40inline void OrderAccess::acquire() {
41  __asm__ volatile ("nop" : : :);
42}
43
44inline void OrderAccess::release() {
45  jint* dummy = (jint*)&dummy;
46  __asm__ volatile("stw %%g0, [%0]" : : "r" (dummy) : "memory");
47}
48
49inline void OrderAccess::fence() {
50  __asm__ volatile ("membar  #StoreLoad" : : :);
51}
52
53#else  // _GNU_SOURCE
54
55inline void OrderAccess::acquire() {
56  _OrderAccess_acquire();
57}
58
59inline void OrderAccess::release() {
60  dummy = 0;
61}
62
63inline void OrderAccess::fence() {
64  _OrderAccess_fence();
65}
66
67#endif // _GNU_SOURCE
68
69inline jbyte    OrderAccess::load_acquire(volatile jbyte*   p) { return *p; }
70inline jshort   OrderAccess::load_acquire(volatile jshort*  p) { return *p; }
71inline jint     OrderAccess::load_acquire(volatile jint*    p) { return *p; }
72inline jlong    OrderAccess::load_acquire(volatile jlong*   p) { return *p; }
73inline jubyte   OrderAccess::load_acquire(volatile jubyte*  p) { return *p; }
74inline jushort  OrderAccess::load_acquire(volatile jushort* p) { return *p; }
75inline juint    OrderAccess::load_acquire(volatile juint*   p) { return *p; }
76inline julong   OrderAccess::load_acquire(volatile julong*  p) { return *p; }
77inline jfloat   OrderAccess::load_acquire(volatile jfloat*  p) { return *p; }
78inline jdouble  OrderAccess::load_acquire(volatile jdouble* p) { return *p; }
79
80inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t*   p) { return *p; }
81inline void*    OrderAccess::load_ptr_acquire(volatile void*       p) { return *(void* volatile *)p; }
82inline void*    OrderAccess::load_ptr_acquire(const volatile void* p) { return *(void* const volatile *)p; }
83
84inline void     OrderAccess::release_store(volatile jbyte*   p, jbyte   v) { *p = v; }
85inline void     OrderAccess::release_store(volatile jshort*  p, jshort  v) { *p = v; }
86inline void     OrderAccess::release_store(volatile jint*    p, jint    v) { *p = v; }
87inline void     OrderAccess::release_store(volatile jlong*   p, jlong   v) { *p = v; }
88inline void     OrderAccess::release_store(volatile jubyte*  p, jubyte  v) { *p = v; }
89inline void     OrderAccess::release_store(volatile jushort* p, jushort v) { *p = v; }
90inline void     OrderAccess::release_store(volatile juint*   p, juint   v) { *p = v; }
91inline void     OrderAccess::release_store(volatile julong*  p, julong  v) { *p = v; }
92inline void     OrderAccess::release_store(volatile jfloat*  p, jfloat  v) { *p = v; }
93inline void     OrderAccess::release_store(volatile jdouble* p, jdouble v) { *p = v; }
94
95inline void     OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { *p = v; }
96inline void     OrderAccess::release_store_ptr(volatile void*     p, void*    v) { *(void* volatile *)p = v; }
97
98inline void     OrderAccess::store_fence(jbyte*   p, jbyte   v) { *p = v; fence(); }
99inline void     OrderAccess::store_fence(jshort*  p, jshort  v) { *p = v; fence(); }
100inline void     OrderAccess::store_fence(jint*    p, jint    v) { *p = v; fence(); }
101inline void     OrderAccess::store_fence(jlong*   p, jlong   v) { *p = v; fence(); }
102inline void     OrderAccess::store_fence(jubyte*  p, jubyte  v) { *p = v; fence(); }
103inline void     OrderAccess::store_fence(jushort* p, jushort v) { *p = v; fence(); }
104inline void     OrderAccess::store_fence(juint*   p, juint   v) { *p = v; fence(); }
105inline void     OrderAccess::store_fence(julong*  p, julong  v) { *p = v; fence(); }
106inline void     OrderAccess::store_fence(jfloat*  p, jfloat  v) { *p = v; fence(); }
107inline void     OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); }
108
109inline void     OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; fence(); }
110inline void     OrderAccess::store_ptr_fence(void**    p, void*    v) { *p = v; fence(); }
111
112inline void     OrderAccess::release_store_fence(volatile jbyte*   p, jbyte   v) { *p = v; fence(); }
113inline void     OrderAccess::release_store_fence(volatile jshort*  p, jshort  v) { *p = v; fence(); }
114inline void     OrderAccess::release_store_fence(volatile jint*    p, jint    v) { *p = v; fence(); }
115inline void     OrderAccess::release_store_fence(volatile jlong*   p, jlong   v) { *p = v; fence(); }
116inline void     OrderAccess::release_store_fence(volatile jubyte*  p, jubyte  v) { *p = v; fence(); }
117inline void     OrderAccess::release_store_fence(volatile jushort* p, jushort v) { *p = v; fence(); }
118inline void     OrderAccess::release_store_fence(volatile juint*   p, juint   v) { *p = v; fence(); }
119inline void     OrderAccess::release_store_fence(volatile julong*  p, julong  v) { *p = v; fence(); }
120inline void     OrderAccess::release_store_fence(volatile jfloat*  p, jfloat  v) { *p = v; fence(); }
121inline void     OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { *p = v; fence(); }
122
123inline void     OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { *p = v; fence(); }
124inline void     OrderAccess::release_store_ptr_fence(volatile void*     p, void*    v) { *(void* volatile *)p = v; fence(); }
125