1/*
2 * Copyright (c) 2003, 2016, 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 CPU_AARCH64_VM_COPY_AARCH64_HPP
27#define CPU_AARCH64_VM_COPY_AARCH64_HPP
28
29// Inline functions for memory copy and fill.
30
31// Contains inline asm implementations
32#include OS_CPU_HEADER_INLINE(copy)
33
34
35static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) {
36  julong* to = (julong*) tohw;
37  julong  v  = ((julong) value << 32) | value;
38  while (count-- > 0) {
39    *to++ = v;
40  }
41}
42
43static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) {
44  pd_fill_to_words(tohw, count, value);
45}
46
47static void pd_fill_to_bytes(void* to, size_t count, jubyte value) {
48  (void)memset(to, value, count);
49}
50
51static void pd_zero_to_words(HeapWord* tohw, size_t count) {
52  pd_fill_to_words(tohw, count, 0);
53}
54
55static void pd_zero_to_bytes(void* to, size_t count) {
56  (void)memset(to, 0, count);
57}
58
59#endif // CPU_AARCH64_VM_COPY_AARCH64_HPP
60