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src/hotspot/share/gc/z/zPageTable.cpp

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   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 #include "precompiled.hpp"

  25 #include "gc/z/zPage.inline.hpp"
  26 #include "gc/z/zPageTable.inline.hpp"
  27 #include "runtime/orderAccess.hpp"
  28 #include "utilities/debug.hpp"
  29 
  30 ZPageTable::ZPageTable() :
  31     _map() {}
  32 
  33 ZPageTableEntry ZPageTable::get_entry(ZPage* page) const {
  34   const uintptr_t addr = ZAddress::good(page->start());
  35   return _map.get(addr);
  36 }
  37 
  38 void ZPageTable::put_entry(ZPage* page, ZPageTableEntry entry) {
  39   // Make sure a newly created page is globally visible before
  40   // updating the pagetable.
  41   OrderAccess::storestore();
  42 
  43   const uintptr_t start = ZAddress::good(page->start());
  44   const uintptr_t end = start + page->size();




   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 #include "precompiled.hpp"
  25 #include "gc/z/zAddress.inline.hpp"
  26 #include "gc/z/zPage.inline.hpp"
  27 #include "gc/z/zPageTable.inline.hpp"
  28 #include "runtime/orderAccess.hpp"
  29 #include "utilities/debug.hpp"
  30 
  31 ZPageTable::ZPageTable() :
  32     _map() {}
  33 
  34 ZPageTableEntry ZPageTable::get_entry(ZPage* page) const {
  35   const uintptr_t addr = ZAddress::good(page->start());
  36   return _map.get(addr);
  37 }
  38 
  39 void ZPageTable::put_entry(ZPage* page, ZPageTableEntry entry) {
  40   // Make sure a newly created page is globally visible before
  41   // updating the pagetable.
  42   OrderAccess::storestore();
  43 
  44   const uintptr_t start = ZAddress::good(page->start());
  45   const uintptr_t end = start + page->size();


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