tlb.cc (5014:f9667cf03d3f) tlb.cc (5019:2762e580f5db)
1/*
2 * Copyright (c) 2001-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Gabe Black
29 */
30
31#include <cstring>
32
33#include "arch/mips/tlb.hh"
34#include "params/MipsDTB.hh"
35#include "params/MipsITB.hh"
36
37namespace MipsISA {
1/*
2 * Copyright (c) 2001-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Gabe Black
29 */
30
31#include <cstring>
32
33#include "arch/mips/tlb.hh"
34#include "params/MipsDTB.hh"
35#include "params/MipsITB.hh"
36
37namespace MipsISA {
38 Fault
39 TLB::translate(RequestPtr req, ThreadContext *tc, bool)
40 {
41 Fault fault = GenericTLB::translate(req, tc);
42 if (fault != NoFault)
43 return fault;
44
45 typeof(req->getSize()) size = req->getSize();
46 Addr paddr = req->getPaddr();
47
48 if (!isPowerOf2(size))
49 panic("Invalid request size!\n");
50 if ((size - 1) & paddr)
51 return new GenericAlignmentFault(paddr);
52
53 return NoFault;
54 }
55
38 void
39 TlbEntry::serialize(std::ostream &os)
40 {
41 SERIALIZE_SCALAR(pageStart);
42 }
43
44 void
45 TlbEntry::unserialize(Checkpoint *cp, const std::string &section)
46 {
47 UNSERIALIZE_SCALAR(pageStart);
48 }
49};
50
51MipsISA::ITB *
52MipsITBParams::create()
53{
54 return new MipsISA::ITB(name);
55}
56
57MipsISA::DTB *
58MipsDTBParams::create()
59{
60 return new MipsISA::DTB(name);
61}
56 void
57 TlbEntry::serialize(std::ostream &os)
58 {
59 SERIALIZE_SCALAR(pageStart);
60 }
61
62 void
63 TlbEntry::unserialize(Checkpoint *cp, const std::string &section)
64 {
65 UNSERIALIZE_SCALAR(pageStart);
66 }
67};
68
69MipsISA::ITB *
70MipsITBParams::create()
71{
72 return new MipsISA::ITB(name);
73}
74
75MipsISA::DTB *
76MipsDTBParams::create()
77{
78 return new MipsISA::DTB(name);
79}