1 /*
   2  * Copyright (c) 2013, 2018, Red Hat, Inc. All rights reserved.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */
  23 
  24 #include "precompiled.hpp"
  25 
  26 #include "gc_implementation/shenandoah/shenandoahHeap.inline.hpp"
  27 #include "gc_implementation/shenandoah/shenandoahVMOperations.hpp"
  28 #include "gc_implementation/shenandoah/shenandoahUtils.hpp"
  29 
  30 bool VM_ShenandoahReferenceOperation::doit_prologue() {
  31   if (Thread::current()->is_Java_thread()) {
  32     InstanceRefKlass::acquire_pending_list_lock(&_pending_list_basic_lock);
  33   } else {
  34     ShenandoahHeap *sh = (ShenandoahHeap*) Universe::heap();
  35     sh->acquire_pending_refs_lock();
  36   }
  37   return true;
  38 }
  39 
  40 void VM_ShenandoahReferenceOperation::doit_epilogue() {
  41   if (Thread::current()->is_Java_thread()) {
  42     InstanceRefKlass::release_and_notify_pending_list_lock(&_pending_list_basic_lock);
  43   } else {
  44     ShenandoahHeap *sh = ShenandoahHeap::heap();
  45     sh->release_pending_refs_lock();
  46   }
  47 }
  48 
  49 void VM_ShenandoahInitMark::doit() {
  50   ShenandoahGCPauseMark mark(SvcGCMarker::OTHER);
  51   ShenandoahHeap::heap()->entry_init_mark();
  52 }
  53 
  54 void VM_ShenandoahFinalMarkStartEvac::doit() {
  55   ShenandoahGCPauseMark mark(SvcGCMarker::OTHER);
  56   ShenandoahHeap::heap()->entry_final_mark();
  57 }
  58 
  59 void VM_ShenandoahFinalEvac::doit() {
  60   ShenandoahGCPauseMark mark(SvcGCMarker::OTHER);
  61   ShenandoahHeap::heap()->entry_final_evac();
  62 }
  63 
  64 void VM_ShenandoahFullGC::doit() {
  65   ShenandoahGCPauseMark mark(SvcGCMarker::FULL);
  66   ShenandoahHeap::heap()->entry_full(_gc_cause);
  67 }
  68 
  69 void VM_ShenandoahInitUpdateRefs::doit() {
  70   ShenandoahGCPauseMark mark(SvcGCMarker::OTHER);
  71   ShenandoahHeap::heap()->entry_init_updaterefs();
  72 }
  73 
  74 void VM_ShenandoahFinalUpdateRefs::doit() {
  75   ShenandoahGCPauseMark mark(SvcGCMarker::OTHER);
  76   ShenandoahHeap::heap()->entry_final_updaterefs();
  77 }
  78 
  79 void VM_ShenandoahDegeneratedGC::doit() {
  80   ShenandoahGCPauseMark mark(SvcGCMarker::OTHER);
  81   ShenandoahHeap::heap()->entry_degenerated(_point);
  82 }