1 /*
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * Copyright 2012, 2013 SAP AG. 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_PPC_VM_ORDERACCESS_LINUX_PPC_INLINE_HPP
27 #define OS_CPU_LINUX_PPC_VM_ORDERACCESS_LINUX_PPC_INLINE_HPP
28
29 #include "runtime/orderAccess.hpp"
30 #include "vm_version_ppc.hpp"
31
32 #ifndef PPC64
33 #error "OrderAccess currently only implemented for PPC64"
34 #endif
35
36 // Implementation of class OrderAccess.
37
38 //
39 // Machine barrier instructions:
40 //
41 // - sync Two-way memory barrier, aka fence.
42 // - lwsync orders Store|Store,
43 // Load|Store,
44 // Load|Load,
45 // but not Store|Load
46 // - eieio orders Store|Store
47 // - isync Invalidates speculatively executed instructions,
48 // but isync may complete before storage accesses
49 // associated with instructions preceding isync have
50 // been performed.
|
1 /*
2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2012, 2014, SAP AG. 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_PPC_VM_ORDERACCESS_LINUX_PPC_INLINE_HPP
27 #define OS_CPU_LINUX_PPC_VM_ORDERACCESS_LINUX_PPC_INLINE_HPP
28
29 #include "runtime/orderAccess.hpp"
30
31 #ifndef PPC64
32 #error "OrderAccess currently only implemented for PPC64"
33 #endif
34
35 // Implementation of class OrderAccess.
36
37 //
38 // Machine barrier instructions:
39 //
40 // - sync Two-way memory barrier, aka fence.
41 // - lwsync orders Store|Store,
42 // Load|Store,
43 // Load|Load,
44 // but not Store|Load
45 // - eieio orders Store|Store
46 // - isync Invalidates speculatively executed instructions,
47 // but isync may complete before storage accesses
48 // associated with instructions preceding isync have
49 // been performed.
|