1 /* 2 * Copyright (c) 2008, 2018, 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 25 #ifndef OS_CPU_LINUX_ARM_VM_COPY_LINUX_ARM_INLINE_HPP 26 #define OS_CPU_LINUX_ARM_VM_COPY_LINUX_ARM_INLINE_HPP 27 28 static void pd_conjoint_words(const HeapWord* from, HeapWord* to, size_t count) { 29 _Copy_conjoint_words(from, to, count * HeapWordSize); 30 } 31 32 static void pd_disjoint_words(const HeapWord* from, HeapWord* to, size_t count) { 33 _Copy_disjoint_words(from, to, count * HeapWordSize); 34 } 35 36 static void pd_disjoint_words_atomic(const HeapWord* from, HeapWord* to, size_t count) { 37 pd_disjoint_words(from, to, count); 38 } 39 40 static void pd_aligned_conjoint_words(const HeapWord* from, HeapWord* to, size_t count) { 41 pd_conjoint_words(from, to, count); 42 } 43 44 static void pd_aligned_disjoint_words(const HeapWord* from, HeapWord* to, size_t count) { 45 pd_disjoint_words(from, to, count); 46 } 47 48 static void pd_conjoint_bytes(const void* from, void* to, size_t count) { 49 memmove(to, from, count); 50 } 51 52 static void pd_conjoint_bytes_atomic(const void* from, void* to, size_t count) { 53 pd_conjoint_bytes(from, to, count); 54 } 55 56 static void pd_conjoint_jshorts_atomic(const jshort* from, jshort* to, size_t count) { 57 _Copy_conjoint_jshorts_atomic(from, to, count * BytesPerShort); 58 } 59 60 static void pd_conjoint_jints_atomic(const jint* from, jint* to, size_t count) { 61 #ifdef AARCH64 62 _Copy_conjoint_jints_atomic(from, to, count * BytesPerInt); 63 #else 64 assert(HeapWordSize == BytesPerInt, "heapwords and jints must be the same size"); 65 // pd_conjoint_words is word-atomic in this implementation. 66 pd_conjoint_words((const HeapWord*)from, (HeapWord*)to, count); 67 #endif 68 } 69 70 static void pd_conjoint_jlongs_atomic(const jlong* from, jlong* to, size_t count) { 71 #ifdef AARCH64 72 assert(HeapWordSize == BytesPerLong, "64-bit architecture"); 73 pd_conjoint_words((const HeapWord*)from, (HeapWord*)to, count); 74 #else 75 _Copy_conjoint_jlongs_atomic(from, to, count * BytesPerLong); 76 #endif 77 } 78 79 static void pd_conjoint_oops_atomic(const oop* from, oop* to, size_t count) { 80 #ifdef AARCH64 81 if (UseCompressedOops) { 82 assert(BytesPerHeapOop == BytesPerInt, "compressed oops"); 83 pd_conjoint_jints_atomic((const jint*)from, (jint*)to, count); 84 } else { 85 assert(BytesPerHeapOop == BytesPerLong, "64-bit architecture"); 86 pd_conjoint_jlongs_atomic((const jlong*)from, (jlong*)to, count); 87 } 88 #else 89 assert(BytesPerHeapOop == BytesPerInt, "32-bit architecture"); 90 pd_conjoint_jints_atomic((const jint*)from, (jint*)to, count); 91 #endif 92 } 93 94 static void pd_arrayof_conjoint_bytes(const HeapWord* from, HeapWord* to, size_t count) { 95 pd_conjoint_bytes_atomic((const void*)from, (void*)to, count); 96 } 97 98 static void pd_arrayof_conjoint_jshorts(const HeapWord* from, HeapWord* to, size_t count) { 99 pd_conjoint_jshorts_atomic((const jshort*)from, (jshort*)to, count); 100 } 101 102 static void pd_arrayof_conjoint_jints(const HeapWord* from, HeapWord* to, size_t count) { 103 pd_conjoint_jints_atomic((const jint*)from, (jint*)to, count); 104 } 105 106 static void pd_arrayof_conjoint_jlongs(const HeapWord* from, HeapWord* to, size_t count) { 107 pd_conjoint_jlongs_atomic((const jlong*)from, (jlong*)to, count); 108 } 109 110 static void pd_arrayof_conjoint_oops(const HeapWord* from, HeapWord* to, size_t count) { 111 pd_conjoint_oops_atomic((const oop*)from, (oop*)to, count); 112 } 113 114 #endif // OS_CPU_LINUX_ARM_VM_COPY_LINUX_ARM_INLINE_HPP