e7af7a4aef
Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com> Co-authored-by: Erik Osterlund <erik.osterlund@oracle.com> Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com> Co-authored-by: Kim Barrett <kim.barrett@oracle.com> Co-authored-by: Nils Eliasson <nils.eliasson@oracle.com> Co-authored-by: Rickard Backman <rickard.backman@oracle.com> Co-authored-by: Roland Westrelin <rwestrel@redhat.com> Co-authored-by: Coleen Phillimore <coleen.phillimore@oracle.com> Co-authored-by: Robbin Ehn <robbin.ehn@oracle.com> Co-authored-by: Gerard Ziemski <gerard.ziemski@oracle.com> Co-authored-by: Hugh Wilkinson <hugh.wilkinson@intel.com> Co-authored-by: Sandhya Viswanathan <sandhya.viswanathan@intel.com> Co-authored-by: Bill Wheeler <bill.npo.wheeler@intel.com> Co-authored-by: Vinay K. Awasthi <vinay.k.awasthi@intel.com> Co-authored-by: Yasumasa Suenaga <yasuenag@gmail.com> Reviewed-by: pliden, stefank, eosterlund, ehelin, sjohanss, rbackman, coleenp, ihse, jgeorge, lmesnik, rkennke
131 lines
4.0 KiB
C++
131 lines
4.0 KiB
C++
/*
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* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#ifndef SHARE_GC_Z_ZPAGE_HPP
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#define SHARE_GC_Z_ZPAGE_HPP
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#include "gc/z/zForwardingTable.hpp"
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#include "gc/z/zList.hpp"
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#include "gc/z/zLiveMap.hpp"
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#include "gc/z/zPhysicalMemory.hpp"
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#include "gc/z/zVirtualMemory.hpp"
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#include "memory/allocation.hpp"
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class ZPage : public CHeapObj<mtGC> {
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friend class VMStructs;
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friend class ZList<ZPage>;
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private:
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// Always hot
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const uint8_t _type; // Page type
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volatile uint8_t _pinned; // Pinned flag
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uint8_t _numa_id; // NUMA node affinity
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uint32_t _seqnum; // Allocation sequence number
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const ZVirtualMemory _virtual; // Virtual start/end address
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volatile uintptr_t _top; // Virtual top address
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ZLiveMap _livemap; // Live map
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// Hot when relocated and cached
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volatile uint32_t _refcount; // Page reference count
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ZForwardingTable _forwarding; // Forwarding table
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ZPhysicalMemory _physical; // Physical memory for page
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ZListNode<ZPage> _node; // Page list node
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const char* type_to_string() const;
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uint32_t object_max_count() const;
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uintptr_t relocate_object_inner(uintptr_t from_index, uintptr_t from_offset);
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bool is_object_marked(uintptr_t addr) const;
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bool is_object_strongly_marked(uintptr_t addr) const;
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public:
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ZPage(uint8_t type, ZVirtualMemory vmem, ZPhysicalMemory pmem);
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~ZPage();
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size_t object_alignment_shift() const;
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size_t object_alignment() const;
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uint8_t type() const;
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uintptr_t start() const;
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uintptr_t end() const;
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size_t size() const;
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uintptr_t top() const;
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size_t remaining() const;
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uint8_t numa_id();
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ZPhysicalMemory& physical_memory();
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const ZVirtualMemory& virtual_memory() const;
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void reset();
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bool inc_refcount();
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bool dec_refcount();
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bool is_in(uintptr_t addr) const;
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uintptr_t block_start(uintptr_t addr) const;
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size_t block_size(uintptr_t addr) const;
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bool block_is_obj(uintptr_t addr) const;
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bool is_active() const;
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bool is_allocating() const;
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bool is_relocatable() const;
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bool is_detached() const;
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bool is_mapped() const;
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void set_pre_mapped();
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bool is_pinned() const;
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void set_pinned();
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bool is_forwarding() const;
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void set_forwarding();
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void reset_forwarding();
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void verify_forwarding() const;
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bool is_marked() const;
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bool is_object_live(uintptr_t addr) const;
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bool is_object_strongly_live(uintptr_t addr) const;
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bool mark_object(uintptr_t addr, bool finalizable, bool& inc_live);
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void inc_live_atomic(uint32_t objects, size_t bytes);
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size_t live_bytes() const;
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void object_iterate(ObjectClosure* cl);
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uintptr_t alloc_object(size_t size);
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uintptr_t alloc_object_atomic(size_t size);
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bool undo_alloc_object(uintptr_t addr, size_t size);
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bool undo_alloc_object_atomic(uintptr_t addr, size_t size);
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uintptr_t relocate_object(uintptr_t from);
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uintptr_t forward_object(uintptr_t from);
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void print_on(outputStream* out) const;
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void print() const;
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};
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#endif // SHARE_GC_Z_ZPAGE_HPP
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