1/*
2 * Copyright (c) 2003-2005 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 * Kevin Lim
30 */
31
32#ifndef __ARCH_ALPHA_FAULTS_HH__
33#define __ARCH_ALPHA_FAULTS_HH__
34
35#include "arch/alpha/pagetable.hh"
36#include "config/full_system.hh"
37#include "mem/request.hh"
38#include "sim/faults.hh"
39
40// The design of the "name" and "vect" functions is in sim/faults.hh
41
42namespace AlphaISA {
43
44typedef const Addr FaultVect;
45
46class AlphaFault : public FaultBase
47{
48 protected:
49 virtual bool skipFaultingInstruction() {return false;}
50 virtual bool setRestartAddress() {return true;}
51 public:
52#if FULL_SYSTEM
53 void invoke(ThreadContext * tc,
54 StaticInstPtr inst = StaticInst::nullStaticInstPtr);
55#endif
56 virtual FaultVect vect() = 0;
57 virtual FaultStat & countStat() = 0;
58};
59
60class MachineCheckFault : public AlphaFault
61{
62 private:
63 static FaultName _name;
64 static FaultVect _vect;
65 static FaultStat _count;
66
67 public:
68 FaultName name() const {return _name;}
69 FaultVect vect() {return _vect;}
70 FaultStat & countStat() {return _count;}
71 bool isMachineCheckFault() const {return true;}
72};
73
74class AlignmentFault : public AlphaFault
75{
76 private:
77 static FaultName _name;
78 static FaultVect _vect;
79 static FaultStat _count;
80
81 public:
82 FaultName name() const {return _name;}
83 FaultVect vect() {return _vect;}
84 FaultStat & countStat() {return _count;}
85 bool isAlignmentFault() const {return true;}
86};
87
88static inline Fault genMachineCheckFault()
89{
90 return new MachineCheckFault;
91}
92
93class ResetFault : public AlphaFault
94{
95 private:
96 static FaultName _name;
97 static FaultVect _vect;
98 static FaultStat _count;
99
100 public:
101 FaultName name() const {return _name;}
102 FaultVect vect() {return _vect;}
103 FaultStat & countStat() {return _count;}
104};
105
106class ArithmeticFault : public AlphaFault
107{
108 private:
109 static FaultName _name;
110 static FaultVect _vect;
111 static FaultStat _count;
112
113 protected:
114 bool skipFaultingInstruction() {return true;}
115
116 public:
117 FaultName name() const {return _name;}
118 FaultVect vect() {return _vect;}
119 FaultStat & countStat() {return _count;}
120#if FULL_SYSTEM
121 void invoke(ThreadContext * tc,
122 StaticInstPtr inst = StaticInst::nullStaticInstPtr);
123#endif
124};
125
126class InterruptFault : public AlphaFault
127{
128 private:
129 static FaultName _name;
130 static FaultVect _vect;
131 static FaultStat _count;
132
133 protected:
134 bool setRestartAddress() {return false;}
135
136 public:
137 FaultName name() const {return _name;}
138 FaultVect vect() {return _vect;}
139 FaultStat & countStat() {return _count;}
140};
141
142class DtbFault : public AlphaFault
143{
144 protected:
145 VAddr vaddr;
146 Request::Flags reqFlags;
147 uint64_t flags;
148
149 public:
150 DtbFault(VAddr _vaddr, Request::Flags _reqFlags, uint64_t _flags)
151 : vaddr(_vaddr), reqFlags(_reqFlags), flags(_flags)
152 { }
153 FaultName name() const = 0;
154 FaultVect vect() = 0;
155 FaultStat & countStat() = 0;
156#if FULL_SYSTEM
157 void invoke(ThreadContext * tc,
158 StaticInstPtr inst = StaticInst::nullStaticInstPtr);
159#endif
160};
161
162class NDtbMissFault : public DtbFault
163{
164 private:
165 static FaultName _name;
166 static FaultVect _vect;
167 static FaultStat _count;
168
169 public:
170 NDtbMissFault(VAddr vaddr, Request::Flags reqFlags, uint64_t flags)
171 : DtbFault(vaddr, reqFlags, flags)
172 { }
173 FaultName name() const {return _name;}
174 FaultVect vect() {return _vect;}
175 FaultStat & countStat() {return _count;}
176#if !FULL_SYSTEM
177 void invoke(ThreadContext * tc,
178 StaticInstPtr inst = StaticInst::nullStaticInstPtr);
179#endif
180};
181
182class PDtbMissFault : public DtbFault
183{
184 private:
185 static FaultName _name;
186 static FaultVect _vect;
187 static FaultStat _count;
188
189 public:
190 PDtbMissFault(VAddr vaddr, Request::Flags reqFlags, uint64_t flags)
191 : DtbFault(vaddr, reqFlags, flags)
192 { }
193 FaultName name() const {return _name;}
194 FaultVect vect() {return _vect;}
195 FaultStat & countStat() {return _count;}
196};
197
198class DtbPageFault : public DtbFault
199{
200 private:
201 static FaultName _name;
202 static FaultVect _vect;
203 static FaultStat _count;
204
205 public:
206 DtbPageFault(VAddr vaddr, Request::Flags reqFlags, uint64_t flags)
207 : DtbFault(vaddr, reqFlags, flags)
208 { }
209 FaultName name() const {return _name;}
210 FaultVect vect() {return _vect;}
211 FaultStat & countStat() {return _count;}
212};
213
214class DtbAcvFault : public DtbFault
215{
216 private:
217 static FaultName _name;
218 static FaultVect _vect;
219 static FaultStat _count;
220
221 public:
222 DtbAcvFault(VAddr vaddr, Request::Flags reqFlags, uint64_t flags)
223 : DtbFault(vaddr, reqFlags, flags)
224 { }
225 FaultName name() const {return _name;}
226 FaultVect vect() {return _vect;}
227 FaultStat & countStat() {return _count;}
228};
229
230class DtbAlignmentFault : public DtbFault
231{
232 private:
233 static FaultName _name;
234 static FaultVect _vect;
235 static FaultStat _count;
236
237 public:
238 DtbAlignmentFault(VAddr vaddr, Request::Flags reqFlags, uint64_t flags)
239 : DtbFault(vaddr, reqFlags, flags)
240 { }
241 FaultName name() const {return _name;}
242 FaultVect vect() {return _vect;}
243 FaultStat & countStat() {return _count;}
244};
245
246class ItbFault : public AlphaFault
247{
248 protected:
249 Addr pc;
250
251 public:
252 ItbFault(Addr _pc) : pc(_pc) { }
253 FaultName name() const = 0;
254 FaultVect vect() = 0;
255 FaultStat & countStat() = 0;
256#if FULL_SYSTEM
257 void invoke(ThreadContext * tc,
258 StaticInstPtr inst = StaticInst::nullStaticInstPtr);
259#endif
260};
261
262class ItbPageFault : public ItbFault
263{
264 private:
265 static FaultName _name;
266 static FaultVect _vect;
267 static FaultStat _count;
268
269 public:
270 ItbPageFault(Addr pc) : ItbFault(pc) { }
271 FaultName name() const {return _name;}
272 FaultVect vect() {return _vect;}
273 FaultStat & countStat() {return _count;}
274#if !FULL_SYSTEM
275 void invoke(ThreadContext * tc,
276 StaticInstPtr inst = StaticInst::nullStaticInstPtr);
277#endif
278};
279
280class ItbAcvFault : public ItbFault
281{
282 private:
283 static FaultName _name;
284 static FaultVect _vect;
285 static FaultStat _count;
286
287 public:
288 ItbAcvFault(Addr pc) : ItbFault(pc) { }
289 FaultName name() const {return _name;}
290 FaultVect vect() {return _vect;}
291 FaultStat & countStat() {return _count;}
292};
293
294class UnimplementedOpcodeFault : public AlphaFault
295{
296 private:
297 static FaultName _name;
298 static FaultVect _vect;
299 static FaultStat _count;
300
301 public:
302 FaultName name() const {return _name;}
303 FaultVect vect() {return _vect;}
304 FaultStat & countStat() {return _count;}
305};
306
307class FloatEnableFault : public AlphaFault
308{
309 private:
310 static FaultName _name;
311 static FaultVect _vect;
312 static FaultStat _count;
313
314 public:
315 FaultName name() const {return _name;}
316 FaultVect vect() {return _vect;}
317 FaultStat & countStat() {return _count;}
318};
319
320class PalFault : public AlphaFault
321{
322 private:
323 static FaultName _name;
324 static FaultVect _vect;
325 static FaultStat _count;
326
327 protected:
328 bool skipFaultingInstruction() {return true;}
329
330 public:
331 FaultName name() const {return _name;}
332 FaultVect vect() {return _vect;}
333 FaultStat & countStat() {return _count;}
334};
335
336class IntegerOverflowFault : public AlphaFault
337{
338 private:
339 static FaultName _name;
340 static FaultVect _vect;
341 static FaultStat _count;
342
343 public:
344 FaultName name() const {return _name;}
345 FaultVect vect() {return _vect;}
346 FaultStat & countStat() {return _count;}
347};
348
349} // namespace AlphaISA
350
351#endif // __ARCH_ALPHA_FAULTS_HH__