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 35 inline 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 45 inline 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 50 inline 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 55 inline size_t ZUtils::words_to_bytes(size_t size_in_words) { 56 return size_in_words << LogBytesPerWord; 57 } 58 59 inline size_t ZUtils::object_size(uintptr_t addr) { 60 return words_to_bytes(ZOop::from_address(addr)->size()); 61 } 62 63 inline 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