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;

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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 "sim/faults.hh"
38
39// The design of the "name" and "vect" functions is in sim/faults.hh
40
41namespace AlphaISA {
42
43typedef const Addr FaultVect;
44
45class AlphaFault : public FaultBase
46{
47 protected:
48 virtual bool skipFaultingInstruction() {return false;}
49 virtual bool setRestartAddress() {return true;}

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56};
57
58class MachineCheckFault : public AlphaFault
59{
60 private:
61 static FaultName _name;
62 static FaultVect _vect;
63 static FaultStat _count;
64
65 public:
66 FaultName name() const {return _name;}
67 FaultVect vect() {return _vect;}
68 FaultStat & countStat() {return _count;}
69 bool isMachineCheckFault() const {return true;}
70};
71
72class AlignmentFault : public AlphaFault
73{
74 private:
75 static FaultName _name;
76 static FaultVect _vect;
77 static FaultStat _count;
78
79 public:
80 FaultName name() const {return _name;}
81 FaultVect vect() {return _vect;}
82 FaultStat & countStat() {return _count;}
83 bool isAlignmentFault() const {return true;}
84};
85
86static inline Fault genMachineCheckFault()
87{
88 return new MachineCheckFault;
89}
90
91class ResetFault : public AlphaFault
92{
93 private:
94 static FaultName _name;
95 static FaultVect _vect;
96 static FaultStat _count;
97
98 public:
99 FaultName name() const {return _name;}
100 FaultVect vect() {return _vect;}
101 FaultStat & countStat() {return _count;}
102};
103
104class ArithmeticFault : public AlphaFault
105{
106 private:
107 static FaultName _name;
108 static FaultVect _vect;
109 static FaultStat _count;
110
111 protected:
112 bool skipFaultingInstruction() {return true;}
113
114 public:
115 FaultName name() const {return _name;}
116 FaultVect vect() {return _vect;}
117 FaultStat & countStat() {return _count;}
118#if FULL_SYSTEM
119 void invoke(ThreadContext * tc);
120#endif
121};
122
123class InterruptFault : public AlphaFault
124{
125 private:
126 static FaultName _name;
127 static FaultVect _vect;
128 static FaultStat _count;
129
130 protected:
131 bool setRestartAddress() {return false;}
132
133 public:
134 FaultName name() const {return _name;}
135 FaultVect vect() {return _vect;}
136 FaultStat & countStat() {return _count;}
137};
138
139class DtbFault : public AlphaFault
140{
141 protected:
142 VAddr vaddr;
143 uint32_t reqFlags;
144 uint64_t flags;
145
146 public:
147 DtbFault(VAddr _vaddr, uint32_t _reqFlags, uint64_t _flags)
148 : vaddr(_vaddr), reqFlags(_reqFlags), flags(_flags)
149 { }
150 FaultName name() const = 0;
151 FaultVect vect() = 0;
152 FaultStat & countStat() = 0;
153#if FULL_SYSTEM
154 void invoke(ThreadContext * tc);
155#endif
156};
157
158class NDtbMissFault : public DtbFault
159{
160 private:
161 static FaultName _name;
162 static FaultVect _vect;
163 static FaultStat _count;
164
165 public:
166 NDtbMissFault(VAddr vaddr, uint32_t reqFlags, uint64_t flags)
167 : DtbFault(vaddr, reqFlags, flags)
168 { }
169 FaultName name() const {return _name;}
170 FaultVect vect() {return _vect;}
171 FaultStat & countStat() {return _count;}
172#if !FULL_SYSTEM
173 void invoke(ThreadContext * tc);
174#endif
175};
176
177class PDtbMissFault : public DtbFault
178{
179 private:
180 static FaultName _name;
181 static FaultVect _vect;
182 static FaultStat _count;
183
184 public:
185 PDtbMissFault(VAddr vaddr, uint32_t reqFlags, uint64_t flags)
186 : DtbFault(vaddr, reqFlags, flags)
187 { }
188 FaultName name() const {return _name;}
189 FaultVect vect() {return _vect;}
190 FaultStat & countStat() {return _count;}
191};
192
193class DtbPageFault : public DtbFault
194{
195 private:
196 static FaultName _name;
197 static FaultVect _vect;
198 static FaultStat _count;
199
200 public:
201 DtbPageFault(VAddr vaddr, uint32_t reqFlags, uint64_t flags)
202 : DtbFault(vaddr, reqFlags, flags)
203 { }
204 FaultName name() const {return _name;}
205 FaultVect vect() {return _vect;}
206 FaultStat & countStat() {return _count;}
207};
208
209class DtbAcvFault : public DtbFault
210{
211 private:
212 static FaultName _name;
213 static FaultVect _vect;
214 static FaultStat _count;
215
216 public:
217 DtbAcvFault(VAddr vaddr, uint32_t reqFlags, uint64_t flags)
218 : DtbFault(vaddr, reqFlags, flags)
219 { }
220 FaultName name() const {return _name;}
221 FaultVect vect() {return _vect;}
222 FaultStat & countStat() {return _count;}
223};
224
225class DtbAlignmentFault : public DtbFault
226{
227 private:
228 static FaultName _name;
229 static FaultVect _vect;
230 static FaultStat _count;
231
232 public:
233 DtbAlignmentFault(VAddr vaddr, uint32_t reqFlags, uint64_t flags)
234 : DtbFault(vaddr, reqFlags, flags)
235 { }
236 FaultName name() const {return _name;}
237 FaultVect vect() {return _vect;}
238 FaultStat & countStat() {return _count;}
239};
240
241class ItbFault : public AlphaFault
242{
243 protected:
244 Addr pc;
245
246 public:
247 ItbFault(Addr _pc) : pc(_pc) { }
248 FaultName name() const = 0;
249 FaultVect vect() = 0;
250 FaultStat & countStat() = 0;
251#if FULL_SYSTEM
252 void invoke(ThreadContext * tc);
253#endif
254};
255
256class ItbPageFault : public ItbFault
257{
258 private:
259 static FaultName _name;
260 static FaultVect _vect;
261 static FaultStat _count;
262
263 public:
264 ItbPageFault(Addr pc) : ItbFault(pc) { }
265 FaultName name() const {return _name;}
266 FaultVect vect() {return _vect;}
267 FaultStat & countStat() {return _count;}
268#if !FULL_SYSTEM
269 void invoke(ThreadContext * tc);
270#endif
271};
272
273class ItbAcvFault : public ItbFault
274{
275 private:
276 static FaultName _name;
277 static FaultVect _vect;
278 static FaultStat _count;
279
280 public:
281 ItbAcvFault(Addr pc) : ItbFault(pc) { }
282 FaultName name() const {return _name;}
283 FaultVect vect() {return _vect;}
284 FaultStat & countStat() {return _count;}
285};
286
287class UnimplementedOpcodeFault : public AlphaFault
288{
289 private:
290 static FaultName _name;
291 static FaultVect _vect;
292 static FaultStat _count;
293
294 public:
295 FaultName name() const {return _name;}
296 FaultVect vect() {return _vect;}
297 FaultStat & countStat() {return _count;}
298};
299
300class FloatEnableFault : public AlphaFault
301{
302 private:
303 static FaultName _name;
304 static FaultVect _vect;
305 static FaultStat _count;
306
307 public:
308 FaultName name() const {return _name;}
309 FaultVect vect() {return _vect;}
310 FaultStat & countStat() {return _count;}
311};
312
313class PalFault : public AlphaFault
314{
315 private:
316 static FaultName _name;
317 static FaultVect _vect;
318 static FaultStat _count;
319
320 protected:
321 bool skipFaultingInstruction() {return true;}
322
323 public:
324 FaultName name() const {return _name;}
325 FaultVect vect() {return _vect;}
326 FaultStat & countStat() {return _count;}
327};
328
329class IntegerOverflowFault : public AlphaFault
330{
331 private:
332 static FaultName _name;
333 static FaultVect _vect;
334 static FaultStat _count;
335
336 public:
337 FaultName name() const {return _name;}
338 FaultVect vect() {return _vect;}
339 FaultStat & countStat() {return _count;}
340};
341
342} // namespace AlphaISA
343
344#endif // __ARCH_ALPHA_FAULTS_HH__