1 /*
2 * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2014, Red Hat Inc. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #ifndef OS_CPU_LINUX_AARCH64_ATOMIC_LINUX_AARCH64_HPP
27 #define OS_CPU_LINUX_AARCH64_ATOMIC_LINUX_AARCH64_HPP
28
29 #include "vm_version_aarch64.hpp"
30
31 // Implementation of class atomic
32
33 #define FULL_MEM_BARRIER __sync_synchronize()
34 #define READ_MEM_BARRIER __atomic_thread_fence(__ATOMIC_ACQUIRE);
35 #define WRITE_MEM_BARRIER __atomic_thread_fence(__ATOMIC_RELEASE);
36
37 template<size_t byte_size>
38 struct Atomic::PlatformAdd
39 : Atomic::AddAndFetch<Atomic::PlatformAdd<byte_size> >
40 {
41 template<typename I, typename D>
42 D add_and_fetch(I add_value, D volatile* dest, atomic_memory_order order) const {
43 D res = __atomic_add_fetch(dest, add_value, __ATOMIC_RELEASE);
44 FULL_MEM_BARRIER;
45 return res;
46 }
47 };
48
49 template<size_t byte_size>
|
1 /*
2 * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2014, 2019, Red Hat Inc. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #ifndef OS_CPU_LINUX_AARCH64_ATOMIC_LINUX_AARCH64_HPP
27 #define OS_CPU_LINUX_AARCH64_ATOMIC_LINUX_AARCH64_HPP
28
29 #include "runtime/vm_version.hpp"
30
31 // Implementation of class atomic
32
33 #define FULL_MEM_BARRIER __sync_synchronize()
34 #define READ_MEM_BARRIER __atomic_thread_fence(__ATOMIC_ACQUIRE);
35 #define WRITE_MEM_BARRIER __atomic_thread_fence(__ATOMIC_RELEASE);
36
37 template<size_t byte_size>
38 struct Atomic::PlatformAdd
39 : Atomic::AddAndFetch<Atomic::PlatformAdd<byte_size> >
40 {
41 template<typename I, typename D>
42 D add_and_fetch(I add_value, D volatile* dest, atomic_memory_order order) const {
43 D res = __atomic_add_fetch(dest, add_value, __ATOMIC_RELEASE);
44 FULL_MEM_BARRIER;
45 return res;
46 }
47 };
48
49 template<size_t byte_size>
|