tlb.hh (5124:3d8c50376609) tlb.hh (5140:2fd7f8477b4c)
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
6 * with or without modification, are permitted provided that the
7 * following conditions are met:
8 *
9 * The software must be used only for Non-Commercial Use which means any
10 * use which is NOT directed to receiving any direct monetary
11 * compensation for, or commercial advantage from such use. Illustrative
12 * examples of non-commercial use are academic research, personal study,
13 * teaching, education and corporate research & development.
14 * Illustrative examples of commercial use are distributing products for
15 * commercial advantage and providing services using the software for
16 * commercial advantage.
17 *
18 * If you wish to use this software or functionality therein that may be
19 * covered by patents for commercial use, please contact:
20 * Director of Intellectual Property Licensing
21 * Office of Strategy and Technology
22 * Hewlett-Packard Company
23 * 1501 Page Mill Road
24 * Palo Alto, California 94304
25 *
26 * Redistributions of source code must retain the above copyright notice,
27 * this list of conditions and the following disclaimer. Redistributions
28 * in binary form must reproduce the above copyright notice, this list of
29 * conditions and the following disclaimer in the documentation and/or
30 * other materials provided with the distribution. Neither the name of
31 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
32 * contributors may be used to endorse or promote products derived from
33 * this software without specific prior written permission. No right of
34 * sublicense is granted herewith. Derivatives of the software and
35 * output created using the software may be prepared, but only for
36 * Non-Commercial Uses. Derivatives of the software may be shared with
37 * others provided: (i) the others agree to abide by the list of
38 * conditions herein which includes the Non-Commercial Use restrictions;
39 * and (ii) such Derivatives of the software include the above copyright
40 * notice to acknowledge the contribution from this software where
41 * applicable, this list of conditions and the disclaimer below.
42 *
43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 *
55 * Authors: Gabe Black
56 */
57
58#ifndef __ARCH_X86_TLB_HH__
59#define __ARCH_X86_TLB_HH__
60
61#include <list>
62
63#include "arch/x86/pagetable.hh"
64#include "arch/x86/segmentregs.hh"
65#include "config/full_system.hh"
66#include "mem/request.hh"
67#include "params/X86DTB.hh"
68#include "params/X86ITB.hh"
69#include "sim/faults.hh"
70#include "sim/sim_object.hh"
71
72class ThreadContext;
73class Packet;
74
75namespace X86ISA
76{
77 static const unsigned StoreCheck = 1 << NUM_SEGMENTREGS;
78
79 class TLB : public SimObject
80 {
81#if !FULL_SYSTEM
82 protected:
83 friend class FakeITLBFault;
84 friend class FakeDTLBFault;
85#endif
86 public:
87 typedef X86TLBParams Params;
88 TLB(const Params *p);
89
90 void dumpAll();
91
92 TlbEntry *lookup(Addr va, bool update_lru = true);
93
94 protected:
95 int size;
96
97 TlbEntry * tlb;
98
99 typedef std::list<TlbEntry *> EntryList;
100 EntryList freeList;
101 EntryList entryList;
102
103 void insert(Addr vpn, TlbEntry &entry);
104
105 void invalidateAll();
106
107 void invalidateNonGlobal();
108
109 void demapPage(Addr va);
110
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
6 * with or without modification, are permitted provided that the
7 * following conditions are met:
8 *
9 * The software must be used only for Non-Commercial Use which means any
10 * use which is NOT directed to receiving any direct monetary
11 * compensation for, or commercial advantage from such use. Illustrative
12 * examples of non-commercial use are academic research, personal study,
13 * teaching, education and corporate research & development.
14 * Illustrative examples of commercial use are distributing products for
15 * commercial advantage and providing services using the software for
16 * commercial advantage.
17 *
18 * If you wish to use this software or functionality therein that may be
19 * covered by patents for commercial use, please contact:
20 * Director of Intellectual Property Licensing
21 * Office of Strategy and Technology
22 * Hewlett-Packard Company
23 * 1501 Page Mill Road
24 * Palo Alto, California 94304
25 *
26 * Redistributions of source code must retain the above copyright notice,
27 * this list of conditions and the following disclaimer. Redistributions
28 * in binary form must reproduce the above copyright notice, this list of
29 * conditions and the following disclaimer in the documentation and/or
30 * other materials provided with the distribution. Neither the name of
31 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
32 * contributors may be used to endorse or promote products derived from
33 * this software without specific prior written permission. No right of
34 * sublicense is granted herewith. Derivatives of the software and
35 * output created using the software may be prepared, but only for
36 * Non-Commercial Uses. Derivatives of the software may be shared with
37 * others provided: (i) the others agree to abide by the list of
38 * conditions herein which includes the Non-Commercial Use restrictions;
39 * and (ii) such Derivatives of the software include the above copyright
40 * notice to acknowledge the contribution from this software where
41 * applicable, this list of conditions and the disclaimer below.
42 *
43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 *
55 * Authors: Gabe Black
56 */
57
58#ifndef __ARCH_X86_TLB_HH__
59#define __ARCH_X86_TLB_HH__
60
61#include <list>
62
63#include "arch/x86/pagetable.hh"
64#include "arch/x86/segmentregs.hh"
65#include "config/full_system.hh"
66#include "mem/request.hh"
67#include "params/X86DTB.hh"
68#include "params/X86ITB.hh"
69#include "sim/faults.hh"
70#include "sim/sim_object.hh"
71
72class ThreadContext;
73class Packet;
74
75namespace X86ISA
76{
77 static const unsigned StoreCheck = 1 << NUM_SEGMENTREGS;
78
79 class TLB : public SimObject
80 {
81#if !FULL_SYSTEM
82 protected:
83 friend class FakeITLBFault;
84 friend class FakeDTLBFault;
85#endif
86 public:
87 typedef X86TLBParams Params;
88 TLB(const Params *p);
89
90 void dumpAll();
91
92 TlbEntry *lookup(Addr va, bool update_lru = true);
93
94 protected:
95 int size;
96
97 TlbEntry * tlb;
98
99 typedef std::list<TlbEntry *> EntryList;
100 EntryList freeList;
101 EntryList entryList;
102
103 void insert(Addr vpn, TlbEntry &entry);
104
105 void invalidateAll();
106
107 void invalidateNonGlobal();
108
109 void demapPage(Addr va);
110
111 template<class TlbFault>
112 Fault translate(RequestPtr &req, ThreadContext *tc,
113 bool write, bool execute);
114
111 public:
112 // Checkpointing
113 virtual void serialize(std::ostream &os);
114 virtual void unserialize(Checkpoint *cp, const std::string &section);
115 };
116
117 class ITB : public TLB
118 {
119 public:
120 typedef X86ITBParams Params;
121 ITB(const Params *p) : TLB(p)
122 {
123 }
124
125 Fault translate(RequestPtr &req, ThreadContext *tc);
126
127 friend class DTB;
128 };
129
130 class DTB : public TLB
131 {
132 public:
133 typedef X86DTBParams Params;
134 DTB(const Params *p) : TLB(p)
135 {
136 }
115 public:
116 // Checkpointing
117 virtual void serialize(std::ostream &os);
118 virtual void unserialize(Checkpoint *cp, const std::string &section);
119 };
120
121 class ITB : public TLB
122 {
123 public:
124 typedef X86ITBParams Params;
125 ITB(const Params *p) : TLB(p)
126 {
127 }
128
129 Fault translate(RequestPtr &req, ThreadContext *tc);
130
131 friend class DTB;
132 };
133
134 class DTB : public TLB
135 {
136 public:
137 typedef X86DTBParams Params;
138 DTB(const Params *p) : TLB(p)
139 {
140 }
137
138 Fault translate(RequestPtr &req, ThreadContext *tc, bool write);
139#if FULL_SYSTEM
140 Tick doMmuRegRead(ThreadContext *tc, Packet *pkt);
141 Tick doMmuRegWrite(ThreadContext *tc, Packet *pkt);
142#endif
143
144 // Checkpointing
145 virtual void serialize(std::ostream &os);
146 virtual void unserialize(Checkpoint *cp, const std::string &section);
147 };
148}
149
150#endif // __ARCH_X86_TLB_HH__
141 Fault translate(RequestPtr &req, ThreadContext *tc, bool write);
142#if FULL_SYSTEM
143 Tick doMmuRegRead(ThreadContext *tc, Packet *pkt);
144 Tick doMmuRegWrite(ThreadContext *tc, Packet *pkt);
145#endif
146
147 // Checkpointing
148 virtual void serialize(std::ostream &os);
149 virtual void unserialize(Checkpoint *cp, const std::string &section);
150 };
151}
152
153#endif // __ARCH_X86_TLB_HH__