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 SHARE_GC_SHENANDOAH_SHENANDOAHBARRIERSET_HPP
26 #define SHARE_GC_SHENANDOAH_SHENANDOAHBARRIERSET_HPP
27
28 #include "gc/shared/barrierSet.hpp"
29 #include "gc/shenandoah/shenandoahSATBMarkQueueSet.hpp"
30
31 class ShenandoahHeap;
32 class ShenandoahBarrierSetAssembler;
33
34 class ShenandoahBarrierSet: public BarrierSet {
35 private:
36 ShenandoahHeap* const _heap;
37 BufferNode::Allocator _satb_mark_queue_buffer_allocator;
38 ShenandoahSATBMarkQueueSet _satb_mark_queue_set;
39
40 public:
41 ShenandoahBarrierSet(ShenandoahHeap* heap);
42
43 static ShenandoahBarrierSetAssembler* assembler();
44
45 inline static ShenandoahBarrierSet* barrier_set() {
46 return barrier_set_cast<ShenandoahBarrierSet>(BarrierSet::barrier_set());
47 }
48
49 static ShenandoahSATBMarkQueueSet& satb_mark_queue_set() {
50 return barrier_set()->_satb_mark_queue_set;
51 }
52
53 static bool need_load_reference_barrier(DecoratorSet decorators, BasicType type);
54 static bool need_keep_alive_barrier(DecoratorSet decorators, BasicType type);
55
56 static bool is_strong_access(DecoratorSet decorators) {
57 return (decorators & (ON_WEAK_OOP_REF | ON_PHANTOM_OOP_REF)) == 0;
58 }
59
60 static bool is_weak_access(DecoratorSet decorators) {
61 return (decorators & ON_WEAK_OOP_REF) != 0;
62 }
63
64 static bool is_phantom_access(DecoratorSet decorators) {
65 return (decorators & ON_PHANTOM_OOP_REF) != 0;
66 }
67
68 static bool is_native_access(DecoratorSet decorators) {
94
95 inline void enqueue(oop obj);
96
97 inline oop load_reference_barrier(oop obj);
98
99 template <class T>
100 inline oop load_reference_barrier_mutator(oop obj, T* load_addr);
101
102 template <class T>
103 inline oop load_reference_barrier(DecoratorSet decorators, oop obj, T* load_addr);
104
105 template <typename T>
106 inline oop oop_load(DecoratorSet decorators, T* addr);
107
108 template <typename T>
109 inline oop oop_cmpxchg(DecoratorSet decorators, T* addr, oop compare_value, oop new_value);
110
111 template <typename T>
112 inline oop oop_xchg(DecoratorSet decorators, T* addr, oop new_value);
113
114 private:
115 template <class T>
116 inline void arraycopy_marking(T* src, T* dst, size_t count);
117 template <class T>
118 inline void arraycopy_evacuation(T* src, size_t count);
119 template <class T>
120 inline void arraycopy_update(T* src, size_t count);
121
122 inline void clone_marking(oop src);
123 inline void clone_evacuation(oop src);
124 inline void clone_update(oop src);
125
126 template <class T, bool HAS_FWD, bool EVAC, bool ENQUEUE>
127 inline void arraycopy_work(T* src, size_t count);
128
129 inline bool need_bulk_update(HeapWord* dst);
130 public:
131 // Callbacks for runtime accesses.
132 template <DecoratorSet decorators, typename BarrierSetT = ShenandoahBarrierSet>
133 class AccessBarrier: public BarrierSet::AccessBarrier<decorators, BarrierSetT> {
|
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 SHARE_GC_SHENANDOAH_SHENANDOAHBARRIERSET_HPP
26 #define SHARE_GC_SHENANDOAH_SHENANDOAHBARRIERSET_HPP
27
28 #include "gc/shared/barrierSet.hpp"
29 #include "gc/shenandoah/shenandoahCardTable.hpp"
30 #include "gc/shenandoah/shenandoahSATBMarkQueueSet.hpp"
31
32 class ShenandoahHeap;
33 class ShenandoahBarrierSetAssembler;
34
35 class ShenandoahBarrierSet: public BarrierSet {
36 private:
37 ShenandoahHeap* const _heap;
38 ShenandoahCardTable* _card_table;
39 BufferNode::Allocator _satb_mark_queue_buffer_allocator;
40 ShenandoahSATBMarkQueueSet _satb_mark_queue_set;
41
42 public:
43 ShenandoahBarrierSet(ShenandoahHeap* heap, MemRegion heap_region);
44
45 static ShenandoahBarrierSetAssembler* assembler();
46
47 inline static ShenandoahBarrierSet* barrier_set() {
48 return barrier_set_cast<ShenandoahBarrierSet>(BarrierSet::barrier_set());
49 }
50
51 inline ShenandoahCardTable* card_table() { return _card_table; }
52
53 static ShenandoahSATBMarkQueueSet& satb_mark_queue_set() {
54 return barrier_set()->_satb_mark_queue_set;
55 }
56
57 static bool need_load_reference_barrier(DecoratorSet decorators, BasicType type);
58 static bool need_keep_alive_barrier(DecoratorSet decorators, BasicType type);
59
60 static bool is_strong_access(DecoratorSet decorators) {
61 return (decorators & (ON_WEAK_OOP_REF | ON_PHANTOM_OOP_REF)) == 0;
62 }
63
64 static bool is_weak_access(DecoratorSet decorators) {
65 return (decorators & ON_WEAK_OOP_REF) != 0;
66 }
67
68 static bool is_phantom_access(DecoratorSet decorators) {
69 return (decorators & ON_PHANTOM_OOP_REF) != 0;
70 }
71
72 static bool is_native_access(DecoratorSet decorators) {
98
99 inline void enqueue(oop obj);
100
101 inline oop load_reference_barrier(oop obj);
102
103 template <class T>
104 inline oop load_reference_barrier_mutator(oop obj, T* load_addr);
105
106 template <class T>
107 inline oop load_reference_barrier(DecoratorSet decorators, oop obj, T* load_addr);
108
109 template <typename T>
110 inline oop oop_load(DecoratorSet decorators, T* addr);
111
112 template <typename T>
113 inline oop oop_cmpxchg(DecoratorSet decorators, T* addr, oop compare_value, oop new_value);
114
115 template <typename T>
116 inline oop oop_xchg(DecoratorSet decorators, T* addr, oop new_value);
117
118 template <DecoratorSet decorators, typename T>
119 void write_ref_field_post(T* field, oop newVal);
120
121 void write_ref_array(HeapWord* start, size_t count);
122
123 private:
124 template <class T>
125 inline void arraycopy_marking(T* src, T* dst, size_t count);
126 template <class T>
127 inline void arraycopy_evacuation(T* src, size_t count);
128 template <class T>
129 inline void arraycopy_update(T* src, size_t count);
130
131 inline void clone_marking(oop src);
132 inline void clone_evacuation(oop src);
133 inline void clone_update(oop src);
134
135 template <class T, bool HAS_FWD, bool EVAC, bool ENQUEUE>
136 inline void arraycopy_work(T* src, size_t count);
137
138 inline bool need_bulk_update(HeapWord* dst);
139 public:
140 // Callbacks for runtime accesses.
141 template <DecoratorSet decorators, typename BarrierSetT = ShenandoahBarrierSet>
142 class AccessBarrier: public BarrierSet::AccessBarrier<decorators, BarrierSetT> {
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