1/*
2 * Copyright (c) 2018, 2019, 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.
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23 */
24
25#ifndef SHARE_GC_G1_G1REGIONMARKSTATSCACHE_INLINE_HPP
26#define SHARE_GC_G1_G1REGIONMARKSTATSCACHE_INLINE_HPP
27
28#include "gc/g1/g1RegionMarkStatsCache.hpp"
29#include "runtime/atomic.hpp"
30
31inline G1RegionMarkStatsCache::G1RegionMarkStatsCacheEntry* G1RegionMarkStatsCache::find_for_add(uint region_idx) {
32 uint const cache_idx = hash(region_idx);
33
34 G1RegionMarkStatsCacheEntry* cur = &_cache[cache_idx];
35 if (cur->_region_idx != region_idx) {
36 evict(cache_idx);
37 cur->_region_idx = region_idx;
38 _cache_misses++;
39 } else {
40 _cache_hits++;
41 }
42
43 return cur;
44}
45
46inline void G1RegionMarkStatsCache::evict(uint idx) {
47 G1RegionMarkStatsCacheEntry* cur = &_cache[idx];
48 if (cur->_stats._live_words != 0) {
49 Atomic::add(cur->_stats._live_words, &_target[cur->_region_idx]._live_words);
50 }
51 cur->clear();
52}
53
54#endif // SHARE_GC_G1_G1REGIONMARKSTATSCACHE_INLINE_HPP
55