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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40{
41
42typedef uint32_t TrapType;
43typedef uint32_t FaultPriority;
44
45class SparcFaultBase : public FaultBase
46{
47 public:
48 enum PrivilegeLevel
49 {
50 U, User = U,
51 P, Privileged = P,
52 H, Hyperprivileged = H,
53 NumLevels,
54 SH = -1,
55 ShouldntHappen = SH
56 };
57 struct FaultVals
58 {
59 const FaultName name;
60 const TrapType trapType;
61 const FaultPriority priority;
62 const PrivilegeLevel nextPrivilegeLevel[NumLevels];
63 FaultStat count;
64 };
65#if FULL_SYSTEM
66 void invoke(ThreadContext * tc);
67#endif
68 virtual FaultName name() = 0;
69 virtual TrapType trapType() = 0;
70 virtual FaultPriority priority() = 0;
71 virtual FaultStat & countStat() = 0;
72 virtual PrivilegeLevel getNextLevel(PrivilegeLevel current) = 0;
73};
74
75template<typename T>
76class SparcFault : public SparcFaultBase
77{
78 protected:
79 static FaultVals vals;
80 public:
81 FaultName name() {return vals.name;}
82 TrapType trapType() {return vals.trapType;}
83 FaultPriority priority() {return vals.priority;}
84 FaultStat & countStat() {return vals.count;}
85 PrivilegeLevel getNextLevel(PrivilegeLevel current)
86 {
87 return vals.nextPrivilegeLevel[current];
88 }
89};
90
76class InternalProcessorError :
77 public SparcFault<InternalProcessorError>
78{
79 public:
80 bool isMachineCheckFault() {return true;}
81};
82
83class MemAddressNotAligned :
84 public SparcFault<MemAddressNotAligned>
85{
86 public:
87 bool isAlignmentFault() {return true;}
88};
89
90#if !FULL_SYSTEM
91class PageTableFault : public SparcFault<PageTableFault>
92{
93 private:
94 Addr vaddr;
95 public:
96 PageTableFault(Addr va) : vaddr(va) {}
97 void invoke(ThreadContext * tc);
98};
99
100static inline Fault genPageTableFault(Addr va)
101{
102 return new PageTableFault(va);
103}
104#endif
105
106static inline Fault genMachineCheckFault()
107{
108 return new InternalProcessorError;
109}
110
111static inline Fault genAlignmentFault()
112{
113 return new MemAddressNotAligned;
114}
115
91class PowerOnReset : public SparcFault<PowerOnReset>
92{
93 void invoke(ThreadContext * tc);
94};
95
96class WatchDogReset : public SparcFault<WatchDogReset> {};
97
98class ExternallyInitiatedReset : public SparcFault<ExternallyInitiatedReset> {};
99
100class SoftwareInitiatedReset : public SparcFault<SoftwareInitiatedReset> {};
101
102class REDStateException : public SparcFault<REDStateException> {};
103
104class StoreError : public SparcFault<StoreError> {};
105
106class InstructionAccessException : public SparcFault<InstructionAccessException> {};
107
131class InstructionAccessMMUMiss : public SparcFault {};
108//class InstructionAccessMMUMiss : public SparcFault<InstructionAccessMMUMiss> {};
109
110class InstructionAccessError : public SparcFault<InstructionAccessError> {};
111
112class IllegalInstruction : public SparcFault<IllegalInstruction> {};
113
114class PrivilegedOpcode : public SparcFault<PrivilegedOpcode> {};
115
139class UnimplementedLDD : public SparcFault {};
116//class UnimplementedLDD : public SparcFault<UnimplementedLDD> {};
117
141class UnimplementedSTD : public SparcFault {};
118//class UnimplementedSTD : public SparcFault<UnimplementedSTD> {};
119
120class FpDisabled : public SparcFault<FpDisabled> {};
121
122class FpExceptionIEEE754 : public SparcFault<FpExceptionIEEE754> {};
123
124class FpExceptionOther : public SparcFault<FpExceptionOther> {};
125
126class TagOverflow : public SparcFault<TagOverflow> {};
127
128class CleanWindow : public SparcFault<CleanWindow> {};
129
130class DivisionByZero : public SparcFault<DivisionByZero> {};
131
132class InternalProcessorError :
133 public SparcFault<InternalProcessorError>
134{
135 public:
136 bool isMachineCheckFault() {return true;}
137};
138
139class InstructionInvalidTSBEntry : public SparcFault<InstructionInvalidTSBEntry> {};
140
141class DataInvalidTSBEntry : public SparcFault<DataInvalidTSBEntry> {};
142
143class DataAccessException : public SparcFault<DataAccessException> {};
144
155class DataAccessMMUMiss : public SparcFault {};
145//class DataAccessMMUMiss : public SparcFault<DataAccessMMUMiss> {};
146
147class DataAccessError : public SparcFault<DataAccessError> {};
148
149class DataAccessProtection : public SparcFault<DataAccessProtection> {};
150
151class MemAddressNotAligned :
152 public SparcFault<MemAddressNotAligned>
153{
154 public:
155 bool isAlignmentFault() {return true;}
156};
157
158class LDDFMemAddressNotAligned : public SparcFault<LDDFMemAddressNotAligned> {};
159
160class STDFMemAddressNotAligned : public SparcFault<STDFMemAddressNotAligned> {};
161
162class PrivilegedAction : public SparcFault<PrivilegedAction> {};
163
164class LDQFMemAddressNotAligned : public SparcFault<LDQFMemAddressNotAligned> {};
165
166class STQFMemAddressNotAligned : public SparcFault<STQFMemAddressNotAligned> {};
167
171class AsyncDataError : public SparcFault<AsyncDataError> {};
168class InstructionRealTranslationMiss :
169 public SparcFault<InstructionRealTranslationMiss> {};
170
173class CleanWindow : public SparcFault<CleanWindow> {};
171class DataRealTranslationMiss : public SparcFault<DataRealTranslationMiss> {};
172
173//class AsyncDataError : public SparcFault<AsyncDataError> {};
174
175template <class T>
176class EnumeratedFault : public SparcFault<T>
177{
178 protected:
179 uint32_t _n;
180 public:
181 EnumeratedFault(uint32_t n) : SparcFault<T>(), _n(n) {}
182 TrapType trapType() {return SparcFault<T>::trapType() + _n;}
183};
184
185class InterruptLevelN : public EnumeratedFault<InterruptLevelN>
186{
187 public:
188 InterruptLevelN(uint32_t n) :
189 EnumeratedFault<InterruptLevelN>(n) {;}
190 FaultPriority priority() {return 32 - _n;}
188 InterruptLevelN(uint32_t n) : EnumeratedFault<InterruptLevelN>(n) {;}
189 FaultPriority priority() {return 3200 - _n*100;}
190};
191
192class HstickMatch : public SparcFault<HstickMatch> {};
193
194class TrapLevelZero : public SparcFault<TrapLevelZero> {};
195
196class PAWatchpoint : public SparcFault<PAWatchpoint> {};
197
198class VAWatchpoint : public SparcFault<VAWatchpoint> {};
199
200class FastInstructionAccessMMUMiss :
201 public SparcFault<FastInstructionAccessMMUMiss> {};
202
203class FastDataAccessMMUMiss : public SparcFault<FastDataAccessMMUMiss> {};
204
205class FastDataAccessProtection : public SparcFault<FastDataAccessProtection> {};
206
207class InstructionBreakpoint : public SparcFault<InstructionBreakpoint> {};
208
209class CpuMondo : public SparcFault<CpuMondo> {};
210
211class DevMondo : public SparcFault<DevMondo> {};
212
213class ResumeableError : public SparcFault<ResumeableError> {};
214
215class SpillNNormal : public EnumeratedFault<SpillNNormal>
216{
217 public:
196 SpillNNormal(uint32_t n) :
197 EnumeratedFault<SpillNNormal>(n) {;}
218 SpillNNormal(uint32_t n) : EnumeratedFault<SpillNNormal>(n) {;}
219 //These need to be handled specially to enable spill traps in SE
220#if !FULL_SYSTEM
221 void invoke(ThreadContext * tc);
222#endif
223};
224
225class SpillNOther : public EnumeratedFault<SpillNOther>
226{
227 public:
207 SpillNOther(uint32_t n) :
208 EnumeratedFault<SpillNOther>(n) {;}
228 SpillNOther(uint32_t n) : EnumeratedFault<SpillNOther>(n) {;}
229};
230
231class FillNNormal : public EnumeratedFault<FillNNormal>
232{
233 public:
214 FillNNormal(uint32_t n) :
215 EnumeratedFault<FillNNormal>(n) {;}
234 FillNNormal(uint32_t n) : EnumeratedFault<FillNNormal>(n) {;}
235 //These need to be handled specially to enable fill traps in SE
236#if !FULL_SYSTEM
237 void invoke(ThreadContext * tc);
238#endif
239};
240
241class FillNOther : public EnumeratedFault<FillNOther>
242{
243 public:
225 FillNOther(uint32_t n) :
226 EnumeratedFault<FillNOther>(n) {;}
244 FillNOther(uint32_t n) : EnumeratedFault<FillNOther>(n) {;}
245};
246
247class TrapInstruction : public EnumeratedFault<TrapInstruction>
248{
249
250 public:
233 TrapInstruction(uint32_t n) :
234 EnumeratedFault<TrapInstruction>(n) {;}
251 TrapInstruction(uint32_t n) : EnumeratedFault<TrapInstruction>(n) {;}
252};
253
254#if !FULL_SYSTEM
255class PageTableFault : public SparcFault<PageTableFault>
256{
257 private:
258 Addr vaddr;
259 public:
260 PageTableFault(Addr va) : vaddr(va) {}
261 void invoke(ThreadContext * tc);
262};
263
264static inline Fault genPageTableFault(Addr va)
265{
266 return new PageTableFault(va);
267}
268#endif
269
270static inline Fault genMachineCheckFault()
271{
272 return new InternalProcessorError;
273}
274
275static inline Fault genAlignmentFault()
276{
277 return new MemAddressNotAligned;
278}
279
280
281} // SparcISA namespace
282
283#endif // __FAULTS_HH__