1 /* 2 * Copyright (c) 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. 22 */ 23 24 #ifndef SHARE_GC_G1_G1THREADLOCALDATA_HPP 25 #define SHARE_GC_G1_G1THREADLOCALDATA_HPP 26 27 #include "gc/g1/g1BarrierSet.hpp" 28 #include "gc/g1/g1DirtyCardQueue.hpp" 29 #include "gc/shared/satbMarkQueue.hpp" 30 #include "runtime/thread.hpp" 31 #include "utilities/debug.hpp" 32 #include "utilities/sizes.hpp" 33 34 class G1ThreadLocalData { 35 private: 36 SATBMarkQueue _satb_mark_queue; 37 G1DirtyCardQueue _dirty_card_queue; 38 39 G1ThreadLocalData() : 40 _satb_mark_queue(&G1BarrierSet::satb_mark_queue_set()), 41 _dirty_card_queue(&G1BarrierSet::dirty_card_queue_set()) {} 42 43 static G1ThreadLocalData* data(Thread* thread) { 44 assert(UseG1GC, "Sanity"); 45 return thread->gc_data<G1ThreadLocalData>(); 46 } 47 48 static ByteSize satb_mark_queue_offset() { 49 return Thread::gc_data_offset() + byte_offset_of(G1ThreadLocalData, _satb_mark_queue); 50 } 51 52 static ByteSize dirty_card_queue_offset() { 53 return Thread::gc_data_offset() + byte_offset_of(G1ThreadLocalData, _dirty_card_queue); 54 } 55 56 public: 57 static void create(Thread* thread) { 58 new (data(thread)) G1ThreadLocalData(); 59 } 60 61 static void destroy(Thread* thread) { 62 data(thread)->~G1ThreadLocalData(); 63 } 64 65 static SATBMarkQueue& satb_mark_queue(Thread* thread) { 66 return data(thread)->_satb_mark_queue; 67 } 68 69 static G1DirtyCardQueue& dirty_card_queue(Thread* thread) { 70 return data(thread)->_dirty_card_queue; 71 } 72 73 static ByteSize satb_mark_queue_active_offset() { 74 return satb_mark_queue_offset() + SATBMarkQueue::byte_offset_of_active(); 75 } 76 77 static ByteSize satb_mark_queue_index_offset() { 78 return satb_mark_queue_offset() + SATBMarkQueue::byte_offset_of_index(); 79 } 80 81 static ByteSize satb_mark_queue_buffer_offset() { 82 return satb_mark_queue_offset() + SATBMarkQueue::byte_offset_of_buf(); 83 } 84 85 static ByteSize dirty_card_queue_index_offset() { 86 return dirty_card_queue_offset() + G1DirtyCardQueue::byte_offset_of_index(); 87 } 88 89 static ByteSize dirty_card_queue_buffer_offset() { 90 return dirty_card_queue_offset() + G1DirtyCardQueue::byte_offset_of_buf(); 91 } 92 }; 93 94 #endif // SHARE_GC_G1_G1THREADLOCALDATA_HPP