1 /*
2 * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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 #ifndef SHARE_VM_GC_Z_VMSTRUCTS_Z_HPP
25 #define SHARE_VM_GC_Z_VMSTRUCTS_Z_HPP
26
27 #include "gc/z/zAddressRangeMap.hpp"
28 #include "gc/z/zCollectedHeap.hpp"
29 #include "gc/z/zHeap.hpp"
30 #include "gc/z/zPageAllocator.hpp"
31 #include "gc/z/zPhysicalMemory.hpp"
32 #include "utilities/macros.hpp"
33
34 // Expose some ZGC globals to the SA agent.
35 class ZGlobalsForVMStructs {
36 static ZGlobalsForVMStructs _instance;
37
38 public:
39 static ZGlobalsForVMStructs* _instance_p;
40
41 ZGlobalsForVMStructs();
42
43 uint32_t* _ZGlobalPhase;
44
45 uintptr_t* _ZAddressGoodMask;
46 uintptr_t* _ZAddressBadMask;
47 uintptr_t* _ZAddressWeakBadMask;
48
49 const int* _ZObjectAlignmentSmallShift;
50 const int* _ZObjectAlignmentSmall;
51 };
52
53 typedef ZAddressRangeMap<ZPageTableEntry, ZPageSizeMinShift> ZAddressRangeMapForPageTable;
54
55 #define VM_STRUCTS_ZGC(nonstatic_field, volatile_nonstatic_field, static_field) \
56 static_field(ZGlobalsForVMStructs, _instance_p, ZGlobalsForVMStructs*) \
57 nonstatic_field(ZGlobalsForVMStructs, _ZGlobalPhase, uint32_t*) \
58 nonstatic_field(ZGlobalsForVMStructs, _ZAddressGoodMask, uintptr_t*) \
59 nonstatic_field(ZGlobalsForVMStructs, _ZAddressBadMask, uintptr_t*) \
60 nonstatic_field(ZGlobalsForVMStructs, _ZAddressWeakBadMask, uintptr_t*) \
61 nonstatic_field(ZGlobalsForVMStructs, _ZObjectAlignmentSmallShift, const int*) \
62 nonstatic_field(ZGlobalsForVMStructs, _ZObjectAlignmentSmall, const int*) \
63 \
64 nonstatic_field(ZCollectedHeap, _heap, ZHeap) \
65 \
66 nonstatic_field(ZHeap, _page_allocator, ZPageAllocator) \
67 nonstatic_field(ZHeap, _pagetable, ZPageTable) \
68 \
69 nonstatic_field(ZPage, _type, const uint8_t) \
70 nonstatic_field(ZPage, _virtual, const ZVirtualMemory) \
71 volatile_nonstatic_field(ZPage, _top, uintptr_t) \
72 volatile_nonstatic_field(ZPage, _refcount, uint32_t) \
73 nonstatic_field(ZPage, _forwarding, ZForwardingTable) \
74 \
75 nonstatic_field(ZPageAllocator, _physical, ZPhysicalMemoryManager) \
76 nonstatic_field(ZPageAllocator, _used, size_t) \
77 \
78 nonstatic_field(ZPageTable, _map, ZAddressRangeMapForPageTable) \
79 \
80 nonstatic_field(ZAddressRangeMapForPageTable, _map, ZPageTableEntry* const) \
81 \
82 nonstatic_field(ZVirtualMemory, _start, uintptr_t) \
83 nonstatic_field(ZVirtualMemory, _end, uintptr_t) \
84 \
85 nonstatic_field(ZForwardingTable, _table, ZForwardingTableEntry*) \
86 nonstatic_field(ZForwardingTable, _size, size_t) \
87 \
88 nonstatic_field(ZPhysicalMemoryManager, _max_capacity, const size_t) \
89 nonstatic_field(ZPhysicalMemoryManager, _capacity, size_t)
90
91 #define VM_INT_CONSTANTS_ZGC(declare_constant, declare_constant_with_value) \
92 declare_constant(ZPhaseRelocate) \
93 declare_constant(ZPageTypeSmall) \
94 declare_constant(ZPageTypeMedium) \
95 declare_constant(ZPageTypeLarge) \
96 declare_constant(ZObjectAlignmentMediumShift) \
97 declare_constant(ZObjectAlignmentLargeShift)
98
99 #define VM_LONG_CONSTANTS_ZGC(declare_constant) \
100 declare_constant(ZPageSizeSmallShift) \
101 declare_constant(ZPageSizeMediumShift) \
102 declare_constant(ZPageSizeMinShift) \
103 declare_constant(ZAddressOffsetShift) \
104 declare_constant(ZAddressOffsetBits) \
105 declare_constant(ZAddressOffsetMask) \
106 declare_constant(ZAddressOffsetMax) \
107 declare_constant(ZAddressSpaceStart)
108
109 #define VM_TYPES_ZGC(declare_type, declare_toplevel_type, declare_integer_type) \
110 declare_toplevel_type(ZGlobalsForVMStructs) \
111 declare_type(ZCollectedHeap, CollectedHeap) \
112 declare_toplevel_type(ZHeap) \
113 declare_toplevel_type(ZPage) \
114 declare_toplevel_type(ZPageAllocator) \
115 declare_toplevel_type(ZPageTable) \
116 declare_toplevel_type(ZPageTableEntry) \
117 declare_toplevel_type(ZAddressRangeMapForPageTable) \
118 declare_toplevel_type(ZVirtualMemory) \
119 declare_toplevel_type(ZForwardingTable) \
120 declare_toplevel_type(ZForwardingTableEntry) \
121 declare_toplevel_type(ZPhysicalMemoryManager)
122
123 #endif // SHARE_VM_GC_Z_VMSTRUCTS_Z_HPP