1/*
2 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. 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 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#ifndef SHARE_GC_Z_ZUTILS_INLINE_HPP
25#define SHARE_GC_Z_ZUTILS_INLINE_HPP
26
27#include "gc/z/zOop.inline.hpp"
28#include "gc/z/zUtils.hpp"
29#include "oops/oop.inline.hpp"
30#include "utilities/align.hpp"
31#include "utilities/copy.hpp"
32#include "utilities/debug.hpp"
33#include "utilities/globalDefinitions.hpp"
34
35inline size_t ZUtils::round_up_power_of_2(size_t value) {
36 assert(value != 0, "Invalid value");
37
38 if (is_power_of_2(value)) {
39 return value;
40 }
41
42 return (size_t)1 << (log2_intptr(value) + 1);
43}
44
45inline size_t ZUtils::round_down_power_of_2(size_t value) {
46 assert(value != 0, "Invalid value");
47 return (size_t)1 << log2_intptr(value);
48}
49
50inline size_t ZUtils::bytes_to_words(size_t size_in_bytes) {
51 assert(is_aligned(size_in_bytes, BytesPerWord), "Size not word aligned");
52 return size_in_bytes >> LogBytesPerWord;
53}
54
55inline size_t ZUtils::words_to_bytes(size_t size_in_words) {
56 return size_in_words << LogBytesPerWord;
57}
58
59inline size_t ZUtils::object_size(uintptr_t addr) {
60 return words_to_bytes(ZOop::from_address(addr)->size());
61}
62
63inline void ZUtils::object_copy(uintptr_t from, uintptr_t to, size_t size) {
64 Copy::aligned_disjoint_words((HeapWord*)from, (HeapWord*)to, bytes_to_words(size));
65}
66
67#endif // SHARE_GC_Z_ZUTILS_INLINE_HPP
68