|
1 /* |
|
2 * Copyright 2003-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
|
20 * CA 95054 USA or visit www.sun.com if you need additional information or |
|
21 * have any questions. |
|
22 * |
|
23 */ |
|
24 |
|
25 // Implementation of class OrderAccess. |
|
26 |
|
27 // Assume TSO. |
|
28 |
|
29 // In solaris_sparc.il |
|
30 extern "C" void _OrderAccess_acquire(); |
|
31 extern "C" void _OrderAccess_fence(); |
|
32 |
|
33 inline void OrderAccess::loadload() { acquire(); } |
|
34 inline void OrderAccess::storestore() { release(); } |
|
35 inline void OrderAccess::loadstore() { acquire(); } |
|
36 inline void OrderAccess::storeload() { fence(); } |
|
37 |
|
38 #ifdef _GNU_SOURCE |
|
39 |
|
40 inline void OrderAccess::acquire() { |
|
41 __asm__ volatile ("nop" : : :); |
|
42 } |
|
43 |
|
44 inline void OrderAccess::release() { |
|
45 jint* dummy = (jint*)&dummy; |
|
46 __asm__ volatile("stw %%g0, [%0]" : : "r" (dummy) : "memory"); |
|
47 } |
|
48 |
|
49 inline void OrderAccess::fence() { |
|
50 __asm__ volatile ("membar #StoreLoad" : : :); |
|
51 } |
|
52 |
|
53 #else // _GNU_SOURCE |
|
54 |
|
55 inline void OrderAccess::acquire() { |
|
56 _OrderAccess_acquire(); |
|
57 } |
|
58 |
|
59 inline void OrderAccess::release() { |
|
60 dummy = 0; |
|
61 } |
|
62 |
|
63 #if defined(COMPILER2) || defined(_LP64) |
|
64 |
|
65 inline void OrderAccess::fence() { |
|
66 _OrderAccess_fence(); |
|
67 } |
|
68 |
|
69 #else // defined(COMPILER2) || defined(_LP64) |
|
70 |
|
71 inline void OrderAccess::fence() { |
|
72 if (os::is_MP()) { |
|
73 (*os::fence_func)(); |
|
74 } |
|
75 } |
|
76 |
|
77 #endif // defined(COMPILER2) || defined(_LP64) |
|
78 |
|
79 #endif // _GNU_SOURCE |
|
80 |
|
81 inline jbyte OrderAccess::load_acquire(volatile jbyte* p) { return *p; } |
|
82 inline jshort OrderAccess::load_acquire(volatile jshort* p) { return *p; } |
|
83 inline jint OrderAccess::load_acquire(volatile jint* p) { return *p; } |
|
84 inline jlong OrderAccess::load_acquire(volatile jlong* p) { return *p; } |
|
85 inline jubyte OrderAccess::load_acquire(volatile jubyte* p) { return *p; } |
|
86 inline jushort OrderAccess::load_acquire(volatile jushort* p) { return *p; } |
|
87 inline juint OrderAccess::load_acquire(volatile juint* p) { return *p; } |
|
88 inline julong OrderAccess::load_acquire(volatile julong* p) { return *p; } |
|
89 inline jfloat OrderAccess::load_acquire(volatile jfloat* p) { return *p; } |
|
90 inline jdouble OrderAccess::load_acquire(volatile jdouble* p) { return *p; } |
|
91 |
|
92 inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t* p) { return *p; } |
|
93 inline void* OrderAccess::load_ptr_acquire(volatile void* p) { return *(void* volatile *)p; } |
|
94 inline void* OrderAccess::load_ptr_acquire(const volatile void* p) { return *(void* const volatile *)p; } |
|
95 |
|
96 inline void OrderAccess::release_store(volatile jbyte* p, jbyte v) { *p = v; } |
|
97 inline void OrderAccess::release_store(volatile jshort* p, jshort v) { *p = v; } |
|
98 inline void OrderAccess::release_store(volatile jint* p, jint v) { *p = v; } |
|
99 inline void OrderAccess::release_store(volatile jlong* p, jlong v) { *p = v; } |
|
100 inline void OrderAccess::release_store(volatile jubyte* p, jubyte v) { *p = v; } |
|
101 inline void OrderAccess::release_store(volatile jushort* p, jushort v) { *p = v; } |
|
102 inline void OrderAccess::release_store(volatile juint* p, juint v) { *p = v; } |
|
103 inline void OrderAccess::release_store(volatile julong* p, julong v) { *p = v; } |
|
104 inline void OrderAccess::release_store(volatile jfloat* p, jfloat v) { *p = v; } |
|
105 inline void OrderAccess::release_store(volatile jdouble* p, jdouble v) { *p = v; } |
|
106 |
|
107 inline void OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { *p = v; } |
|
108 inline void OrderAccess::release_store_ptr(volatile void* p, void* v) { *(void* volatile *)p = v; } |
|
109 |
|
110 inline void OrderAccess::store_fence(jbyte* p, jbyte v) { *p = v; fence(); } |
|
111 inline void OrderAccess::store_fence(jshort* p, jshort v) { *p = v; fence(); } |
|
112 inline void OrderAccess::store_fence(jint* p, jint v) { *p = v; fence(); } |
|
113 inline void OrderAccess::store_fence(jlong* p, jlong v) { *p = v; fence(); } |
|
114 inline void OrderAccess::store_fence(jubyte* p, jubyte v) { *p = v; fence(); } |
|
115 inline void OrderAccess::store_fence(jushort* p, jushort v) { *p = v; fence(); } |
|
116 inline void OrderAccess::store_fence(juint* p, juint v) { *p = v; fence(); } |
|
117 inline void OrderAccess::store_fence(julong* p, julong v) { *p = v; fence(); } |
|
118 inline void OrderAccess::store_fence(jfloat* p, jfloat v) { *p = v; fence(); } |
|
119 inline void OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); } |
|
120 |
|
121 inline void OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; fence(); } |
|
122 inline void OrderAccess::store_ptr_fence(void** p, void* v) { *p = v; fence(); } |
|
123 |
|
124 inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) { *p = v; fence(); } |
|
125 inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) { *p = v; fence(); } |
|
126 inline void OrderAccess::release_store_fence(volatile jint* p, jint v) { *p = v; fence(); } |
|
127 inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { *p = v; fence(); } |
|
128 inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { *p = v; fence(); } |
|
129 inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { *p = v; fence(); } |
|
130 inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { *p = v; fence(); } |
|
131 inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { *p = v; fence(); } |
|
132 inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { *p = v; fence(); } |
|
133 inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { *p = v; fence(); } |
|
134 |
|
135 inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { *p = v; fence(); } |
|
136 inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) { *(void* volatile *)p = v; fence(); } |