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 #include "precompiled.hpp"
26
27 #include "gc/shenandoah/shenandoahConcurrentGC.hpp"
28 #include "gc/shenandoah/shenandoahDegeneratedGC.hpp"
29 #include "gc/shenandoah/shenandoahFullGC.hpp"
30 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
31 #include "gc/shenandoah/shenandoahMark.inline.hpp"
32 #include "gc/shenandoah/shenandoahOopClosures.inline.hpp"
33 #include "gc/shenandoah/shenandoahUtils.hpp"
34 #include "gc/shenandoah/shenandoahVMOperations.hpp"
35 #include "memory/universe.hpp"
36
37 bool VM_ShenandoahReferenceOperation::doit_prologue() {
38 Heap_lock->lock();
39 return true;
40 }
41
42 void VM_ShenandoahReferenceOperation::doit_epilogue() {
43 if (Universe::has_reference_pending_list()) {
44 Heap_lock->notify_all();
45 }
46 Heap_lock->unlock();
47 }
48
49 void VM_ShenandoahInitMark::doit() {
61 _full_gc->entry_full(_gc_cause);
62 }
63
64 void VM_ShenandoahDegeneratedGC::doit() {
65 ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
66 _gc->entry_degenerated();
67 }
68
69 void VM_ShenandoahInitUpdateRefs::doit() {
70 ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
71 _gc->entry_init_updaterefs();
72 }
73
74 void VM_ShenandoahFinalUpdateRefs::doit() {
75 ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
76 _gc->entry_final_updaterefs();
77 }
78
79 void VM_ShenandoahFinalRoots::doit() {
80 ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
81 _gc->entry_final_roots();
82 }
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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 #include "precompiled.hpp"
26
27 #include "gc/shenandoah/shenandoahConcurrentGC.hpp"
28 #include "gc/shenandoah/shenandoahDegeneratedGC.hpp"
29 #include "gc/shenandoah/shenandoahFullGC.hpp"
30 #include "gc/shenandoah/shenandoahGeneration.hpp"
31 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
32 #include "gc/shenandoah/shenandoahMark.inline.hpp"
33 #include "gc/shenandoah/shenandoahOopClosures.inline.hpp"
34 #include "gc/shenandoah/shenandoahUtils.hpp"
35 #include "gc/shenandoah/shenandoahVMOperations.hpp"
36 #include "memory/universe.hpp"
37
38 bool VM_ShenandoahReferenceOperation::doit_prologue() {
39 Heap_lock->lock();
40 return true;
41 }
42
43 void VM_ShenandoahReferenceOperation::doit_epilogue() {
44 if (Universe::has_reference_pending_list()) {
45 Heap_lock->notify_all();
46 }
47 Heap_lock->unlock();
48 }
49
50 void VM_ShenandoahInitMark::doit() {
62 _full_gc->entry_full(_gc_cause);
63 }
64
65 void VM_ShenandoahDegeneratedGC::doit() {
66 ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
67 _gc->entry_degenerated();
68 }
69
70 void VM_ShenandoahInitUpdateRefs::doit() {
71 ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
72 _gc->entry_init_updaterefs();
73 }
74
75 void VM_ShenandoahFinalUpdateRefs::doit() {
76 ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
77 _gc->entry_final_updaterefs();
78 }
79
80 void VM_ShenandoahFinalRoots::doit() {
81 ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
82 if (_incr_region_ages) {
83 // TODO: Do we even care about this? Do we want to parallelize it?
84 ShenandoahHeap* heap = ShenandoahHeap::heap();
85 ShenandoahMarkingContext* ctx = heap->complete_marking_context();
86
87 for (size_t i = 0; i < heap->num_regions(); i++) {
88 ShenandoahHeapRegion *r = heap->get_region(i);
89 if (r->is_active() && r->is_young()) {
90 HeapWord* tams = ctx->top_at_mark_start(r);
91 HeapWord* top = r->top();
92 if (top > tams) {
93 r->reset_age();
94 } else {
95 r->increment_age();
96 }
97 }
98 }
99 }
100 _gc->entry_final_roots();
101 }
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