1/*
2 * Copyright (c) 2011 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2001-2005 The Regents of The University of Michigan
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Ron Dreslinski
41 * Steve Reinhardt
42 * Andreas Hansson
43 */
44
45#include <string>
46
47#include "arch/isa_traits.hh"
48#include "base/chunk_generator.hh"
49#include "config/the_isa.hh"
50#include "mem/page_table.hh"
51#include "mem/se_translating_port_proxy.hh"
52#include "sim/process.hh"
53#include "sim/system.hh"
54
55using namespace TheISA;
56
57SETranslatingPortProxy::SETranslatingPortProxy(MasterPort& port, Process *p,
58 AllocType alloc)
59 : PortProxy(port, p->system->cacheLineSize()), pTable(p->pTable),
60 process(p), allocating(alloc)
61{ }
62
63SETranslatingPortProxy::~SETranslatingPortProxy()
64{ }
65
66bool
67SETranslatingPortProxy::tryReadBlob(Addr addr, uint8_t *p, int size) const
68{
69 int prevSize = 0;
70
71 for (ChunkGenerator gen(addr, size, PageBytes); !gen.done(); gen.next()) {
72 Addr paddr;
73
74 if (!pTable->translate(gen.addr(),paddr))
75 return false;
76
77 PortProxy::readBlob(paddr, p + prevSize, gen.size());
78 prevSize += gen.size();
79 }
80
81 return true;
82}
83
84void
85SETranslatingPortProxy::readBlob(Addr addr, uint8_t *p, int size) const
86{
87 if (!tryReadBlob(addr, p, size))
88 fatal("readBlob(0x%x, ...) failed", addr);
89}
90
91
92bool
| 1/*
2 * Copyright (c) 2011 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2001-2005 The Regents of The University of Michigan
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Ron Dreslinski
41 * Steve Reinhardt
42 * Andreas Hansson
43 */
44
45#include <string>
46
47#include "arch/isa_traits.hh"
48#include "base/chunk_generator.hh"
49#include "config/the_isa.hh"
50#include "mem/page_table.hh"
51#include "mem/se_translating_port_proxy.hh"
52#include "sim/process.hh"
53#include "sim/system.hh"
54
55using namespace TheISA;
56
57SETranslatingPortProxy::SETranslatingPortProxy(MasterPort& port, Process *p,
58 AllocType alloc)
59 : PortProxy(port, p->system->cacheLineSize()), pTable(p->pTable),
60 process(p), allocating(alloc)
61{ }
62
63SETranslatingPortProxy::~SETranslatingPortProxy()
64{ }
65
66bool
67SETranslatingPortProxy::tryReadBlob(Addr addr, uint8_t *p, int size) const
68{
69 int prevSize = 0;
70
71 for (ChunkGenerator gen(addr, size, PageBytes); !gen.done(); gen.next()) {
72 Addr paddr;
73
74 if (!pTable->translate(gen.addr(),paddr))
75 return false;
76
77 PortProxy::readBlob(paddr, p + prevSize, gen.size());
78 prevSize += gen.size();
79 }
80
81 return true;
82}
83
84void
85SETranslatingPortProxy::readBlob(Addr addr, uint8_t *p, int size) const
86{
87 if (!tryReadBlob(addr, p, size))
88 fatal("readBlob(0x%x, ...) failed", addr);
89}
90
91
92bool
|
93SETranslatingPortProxy::tryWriteBlob(Addr addr, uint8_t *p, int size) const
| 93SETranslatingPortProxy::tryWriteBlob(Addr addr, const uint8_t *p,
94 int size) const
|
94{
95 int prevSize = 0;
96
97 for (ChunkGenerator gen(addr, size, PageBytes); !gen.done(); gen.next()) {
98 Addr paddr;
99
100 if (!pTable->translate(gen.addr(), paddr)) {
101 if (allocating == Always) {
102 process->allocateMem(roundDown(gen.addr(), PageBytes),
103 PageBytes);
104 } else if (allocating == NextPage) {
105 // check if we've accessed the next page on the stack
106 if (!process->fixupStackFault(gen.addr()))
107 panic("Page table fault when accessing virtual address %#x "
108 "during functional write\n", gen.addr());
109 } else {
110 return false;
111 }
112 pTable->translate(gen.addr(), paddr);
113 }
114
115 PortProxy::writeBlob(paddr, p + prevSize, gen.size());
116 prevSize += gen.size();
117 }
118
119 return true;
120}
121
122
123void
| 95{
96 int prevSize = 0;
97
98 for (ChunkGenerator gen(addr, size, PageBytes); !gen.done(); gen.next()) {
99 Addr paddr;
100
101 if (!pTable->translate(gen.addr(), paddr)) {
102 if (allocating == Always) {
103 process->allocateMem(roundDown(gen.addr(), PageBytes),
104 PageBytes);
105 } else if (allocating == NextPage) {
106 // check if we've accessed the next page on the stack
107 if (!process->fixupStackFault(gen.addr()))
108 panic("Page table fault when accessing virtual address %#x "
109 "during functional write\n", gen.addr());
110 } else {
111 return false;
112 }
113 pTable->translate(gen.addr(), paddr);
114 }
115
116 PortProxy::writeBlob(paddr, p + prevSize, gen.size());
117 prevSize += gen.size();
118 }
119
120 return true;
121}
122
123
124void
|
124SETranslatingPortProxy::writeBlob(Addr addr, uint8_t *p, int size) const
| 125SETranslatingPortProxy::writeBlob(Addr addr, const uint8_t *p, int size) const
|
125{
126 if (!tryWriteBlob(addr, p, size))
127 fatal("writeBlob(0x%x, ...) failed", addr);
128}
129
130bool
131SETranslatingPortProxy::tryMemsetBlob(Addr addr, uint8_t val, int size) const
132{
133 for (ChunkGenerator gen(addr, size, PageBytes); !gen.done(); gen.next()) {
134 Addr paddr;
135
136 if (!pTable->translate(gen.addr(), paddr)) {
137 if (allocating == Always) {
138 process->allocateMem(roundDown(gen.addr(), PageBytes),
139 PageBytes);
140 pTable->translate(gen.addr(), paddr);
141 } else {
142 return false;
143 }
144 }
145
146 PortProxy::memsetBlob(paddr, val, gen.size());
147 }
148
149 return true;
150}
151
152void
153SETranslatingPortProxy::memsetBlob(Addr addr, uint8_t val, int size) const
154{
155 if (!tryMemsetBlob(addr, val, size))
156 fatal("memsetBlob(0x%x, ...) failed", addr);
157}
158
159
160bool
161SETranslatingPortProxy::tryWriteString(Addr addr, const char *str) const
162{
163 uint8_t c;
164
165 Addr vaddr = addr;
166
167 do {
168 c = *str++;
169 Addr paddr;
170
171 if (!pTable->translate(vaddr++, paddr))
172 return false;
173
174 PortProxy::writeBlob(paddr, &c, 1);
175 } while (c);
176
177 return true;
178}
179
180void
181SETranslatingPortProxy::writeString(Addr addr, const char *str) const
182{
183 if (!tryWriteString(addr, str))
184 fatal("writeString(0x%x, ...) failed", addr);
185}
186
187bool
188SETranslatingPortProxy::tryReadString(std::string &str, Addr addr) const
189{
190 uint8_t c;
191
192 Addr vaddr = addr;
193
194 while (true) {
195 Addr paddr;
196
197 if (!pTable->translate(vaddr++, paddr))
198 return false;
199
200 PortProxy::readBlob(paddr, &c, 1);
201 if (c == '\0')
202 break;
203
204 str += c;
205 }
206
207 return true;
208}
209
210void
211SETranslatingPortProxy::readString(std::string &str, Addr addr) const
212{
213 if (!tryReadString(str, addr))
214 fatal("readString(0x%x, ...) failed", addr);
215}
216
| 126{
127 if (!tryWriteBlob(addr, p, size))
128 fatal("writeBlob(0x%x, ...) failed", addr);
129}
130
131bool
132SETranslatingPortProxy::tryMemsetBlob(Addr addr, uint8_t val, int size) const
133{
134 for (ChunkGenerator gen(addr, size, PageBytes); !gen.done(); gen.next()) {
135 Addr paddr;
136
137 if (!pTable->translate(gen.addr(), paddr)) {
138 if (allocating == Always) {
139 process->allocateMem(roundDown(gen.addr(), PageBytes),
140 PageBytes);
141 pTable->translate(gen.addr(), paddr);
142 } else {
143 return false;
144 }
145 }
146
147 PortProxy::memsetBlob(paddr, val, gen.size());
148 }
149
150 return true;
151}
152
153void
154SETranslatingPortProxy::memsetBlob(Addr addr, uint8_t val, int size) const
155{
156 if (!tryMemsetBlob(addr, val, size))
157 fatal("memsetBlob(0x%x, ...) failed", addr);
158}
159
160
161bool
162SETranslatingPortProxy::tryWriteString(Addr addr, const char *str) const
163{
164 uint8_t c;
165
166 Addr vaddr = addr;
167
168 do {
169 c = *str++;
170 Addr paddr;
171
172 if (!pTable->translate(vaddr++, paddr))
173 return false;
174
175 PortProxy::writeBlob(paddr, &c, 1);
176 } while (c);
177
178 return true;
179}
180
181void
182SETranslatingPortProxy::writeString(Addr addr, const char *str) const
183{
184 if (!tryWriteString(addr, str))
185 fatal("writeString(0x%x, ...) failed", addr);
186}
187
188bool
189SETranslatingPortProxy::tryReadString(std::string &str, Addr addr) const
190{
191 uint8_t c;
192
193 Addr vaddr = addr;
194
195 while (true) {
196 Addr paddr;
197
198 if (!pTable->translate(vaddr++, paddr))
199 return false;
200
201 PortProxy::readBlob(paddr, &c, 1);
202 if (c == '\0')
203 break;
204
205 str += c;
206 }
207
208 return true;
209}
210
211void
212SETranslatingPortProxy::readString(std::string &str, Addr addr) const
213{
214 if (!tryReadString(str, addr))
215 fatal("readString(0x%x, ...) failed", addr);
216}
217
|