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 inline void OrderAccess::loadload() { acquire(); }
30 inline void OrderAccess::storestore() { release(); }
31 inline void OrderAccess::loadstore() { acquire(); }
32 inline void OrderAccess::storeload() { fence(); }
33
34 inline void OrderAccess::acquire() {
35 __asm__ volatile ("nop" : : :);
36 }
37
38 inline void OrderAccess::release() {
39 jint* local_dummy = (jint*)&local_dummy;
40 __asm__ volatile("stw %%g0, [%0]" : : "r" (local_dummy) : "memory");
41 }
42
43 inline void OrderAccess::fence() {
44 __asm__ volatile ("membar #StoreLoad" : : :);
83 inline void OrderAccess::store_fence(julong* p, julong v) { *p = v; fence(); }
84 inline void OrderAccess::store_fence(jfloat* p, jfloat v) { *p = v; fence(); }
85 inline void OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); }
86
87 inline void OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; fence(); }
88 inline void OrderAccess::store_ptr_fence(void** p, void* v) { *p = v; fence(); }
89
90 inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) { *p = v; fence(); }
91 inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) { *p = v; fence(); }
92 inline void OrderAccess::release_store_fence(volatile jint* p, jint v) { *p = v; fence(); }
93 inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { *p = v; fence(); }
94 inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { *p = v; fence(); }
95 inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { *p = v; fence(); }
96 inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { *p = v; fence(); }
97 inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { *p = v; fence(); }
98 inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { *p = v; fence(); }
99 inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { *p = v; fence(); }
100
101 inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { *p = v; fence(); }
102 inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) { *(void* volatile *)p = v; fence(); }
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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_LINUX_SPARC_VM_ORDERACCESS_LINUX_SPARC_INLINE_HPP
26 #define OS_CPU_LINUX_SPARC_VM_ORDERACCESS_LINUX_SPARC_INLINE_HPP
27
28 #include "runtime/orderAccess.hpp"
29 #include "vm_version_sparc.hpp"
30
31 // Implementation of class OrderAccess.
32
33 // Assume TSO.
34
35 inline void OrderAccess::loadload() { acquire(); }
36 inline void OrderAccess::storestore() { release(); }
37 inline void OrderAccess::loadstore() { acquire(); }
38 inline void OrderAccess::storeload() { fence(); }
39
40 inline void OrderAccess::acquire() {
41 __asm__ volatile ("nop" : : :);
42 }
43
44 inline void OrderAccess::release() {
45 jint* local_dummy = (jint*)&local_dummy;
46 __asm__ volatile("stw %%g0, [%0]" : : "r" (local_dummy) : "memory");
47 }
48
49 inline void OrderAccess::fence() {
50 __asm__ volatile ("membar #StoreLoad" : : :);
89 inline void OrderAccess::store_fence(julong* p, julong v) { *p = v; fence(); }
90 inline void OrderAccess::store_fence(jfloat* p, jfloat v) { *p = v; fence(); }
91 inline void OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); }
92
93 inline void OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; fence(); }
94 inline void OrderAccess::store_ptr_fence(void** p, void* v) { *p = v; fence(); }
95
96 inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) { *p = v; fence(); }
97 inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) { *p = v; fence(); }
98 inline void OrderAccess::release_store_fence(volatile jint* p, jint v) { *p = v; fence(); }
99 inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { *p = v; fence(); }
100 inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { *p = v; fence(); }
101 inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { *p = v; fence(); }
102 inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { *p = v; fence(); }
103 inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { *p = v; fence(); }
104 inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { *p = v; fence(); }
105 inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { *p = v; fence(); }
106
107 inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { *p = v; fence(); }
108 inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) { *(void* volatile *)p = v; fence(); }
109
110 #endif // OS_CPU_LINUX_SPARC_VM_ORDERACCESS_LINUX_SPARC_INLINE_HPP
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