faults.hh revision 2935 
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 *          Korey Sewell
30 */
31
32#ifndef __MIPS_FAULTS_HH__
33#define __MIPS_FAULTS_HH__
34
35#include "sim/faults.hh"
36
37// The design of the "name" and "vect" functions is in sim/faults.hh
38
39namespace MipsISA
40{
41
42typedef const Addr FaultVect;
43
44class MipsFault : public FaultBase
45{
46  protected:
47    virtual bool skipFaultingInstruction() {return false;}
48    virtual bool setRestartAddress() {return true;}
49  public:
50#if FULL_SYSTEM
51    void invoke(ThreadContext * tc);
52#endif
53    virtual FaultVect vect() = 0;
54    virtual FaultStat & countStat() = 0;
55};
56
57class MachineCheckFault : public MipsFault
58{
59  private:
60    static FaultName _name;
61    static FaultVect _vect;
62    static FaultStat _count;
63  public:
64    FaultName name() {return _name;}
65    FaultVect vect() {return _vect;}
66    FaultStat & countStat() {return _count;}
67    bool isMachineCheckFault() {return true;}
68};
69
70class AlignmentFault : public MipsFault
71{
72  private:
73    static FaultName _name;
74    static FaultVect _vect;
75    static FaultStat _count;
76  public:
77    FaultName name() {return _name;}
78    FaultVect vect() {return _vect;}
79    FaultStat & countStat() {return _count;}
80    bool isAlignmentFault() {return true;}
81};
82
83#if !FULL_SYSTEM
84class PageTableFault : public MipsFault
85{
86  private:
87    Addr vaddr;
88    static FaultName _name;
89    static FaultVect _vect;
90    static FaultStat _count;
91  public:
92    PageTableFault(Addr va)
93        : vaddr(va) {}
94    FaultName name() {return _name;}
95    FaultVect vect() {return _vect;}
96    FaultStat & countStat() {return _count;}
97    void invoke(ThreadContext * tc);
98};
99
100static inline Fault genPageTableFault(Addr va)
101{
102    return new PageTableFault(va);
103}
104#endif
105
106
107static inline Fault genMachineCheckFault()
108{
109    return new MachineCheckFault;
110}
111
112static inline Fault genAlignmentFault()
113{
114    return new AlignmentFault;
115}
116
117class ResetFault : public MipsFault
118{
119  private:
120    static FaultName _name;
121    static FaultVect _vect;
122    static FaultStat _count;
123  public:
124    FaultName name() {return _name;}
125    FaultVect vect() {return _vect;}
126    FaultStat & countStat() {return _count;}
127};
128
129class ArithmeticFault : public MipsFault
130{
131  protected:
132    bool skipFaultingInstruction() {return true;}
133  private:
134    static FaultName _name;
135    static FaultVect _vect;
136    static FaultStat _count;
137  public:
138    FaultName name() {return _name;}
139    FaultVect vect() {return _vect;}
140    FaultStat & countStat() {return _count;}
141#if FULL_SYSTEM
142    void invoke(ThreadContext * tc);
143#endif
144};
145
146class InterruptFault : public MipsFault
147{
148  protected:
149    bool setRestartAddress() {return false;}
150  private:
151    static FaultName _name;
152    static FaultVect _vect;
153    static FaultStat _count;
154  public:
155    FaultName name() {return _name;}
156    FaultVect vect() {return _vect;}
157    FaultStat & countStat() {return _count;}
158};
159
160class NDtbMissFault : public MipsFault
161{
162  private:
163    static FaultName _name;
164    static FaultVect _vect;
165    static FaultStat _count;
166  public:
167    FaultName name() {return _name;}
168    FaultVect vect() {return _vect;}
169    FaultStat & countStat() {return _count;}
170};
171
172class PDtbMissFault : public MipsFault
173{
174  private:
175    static FaultName _name;
176    static FaultVect _vect;
177    static FaultStat _count;
178  public:
179    FaultName name() {return _name;}
180    FaultVect vect() {return _vect;}
181    FaultStat & countStat() {return _count;}
182};
183
184class DtbPageFault : public MipsFault
185{
186  private:
187    static FaultName _name;
188    static FaultVect _vect;
189    static FaultStat _count;
190  public:
191    FaultName name() {return _name;}
192    FaultVect vect() {return _vect;}
193    FaultStat & countStat() {return _count;}
194};
195
196class DtbAcvFault : public MipsFault
197{
198  private:
199    static FaultName _name;
200    static FaultVect _vect;
201    static FaultStat _count;
202  public:
203    FaultName name() {return _name;}
204    FaultVect vect() {return _vect;}
205    FaultStat & countStat() {return _count;}
206};
207
208class ItbMissFault : public MipsFault
209{
210  private:
211    static FaultName _name;
212    static FaultVect _vect;
213    static FaultStat _count;
214  public:
215    FaultName name() {return _name;}
216    FaultVect vect() {return _vect;}
217    FaultStat & countStat() {return _count;}
218};
219
220class ItbPageFault : public MipsFault
221{
222  private:
223    static FaultName _name;
224    static FaultVect _vect;
225    static FaultStat _count;
226  public:
227    FaultName name() {return _name;}
228    FaultVect vect() {return _vect;}
229    FaultStat & countStat() {return _count;}
230};
231
232class ItbAcvFault : public MipsFault
233{
234  private:
235    static FaultName _name;
236    static FaultVect _vect;
237    static FaultStat _count;
238  public:
239    FaultName name() {return _name;}
240    FaultVect vect() {return _vect;}
241    FaultStat & countStat() {return _count;}
242};
243
244class UnimplementedOpcodeFault : public MipsFault
245{
246  private:
247    static FaultName _name;
248    static FaultVect _vect;
249    static FaultStat _count;
250  public:
251    FaultName name() {return _name;}
252    FaultVect vect() {return _vect;}
253    FaultStat & countStat() {return _count;}
254};
255
256class FloatEnableFault : public MipsFault
257{
258  private:
259    static FaultName _name;
260    static FaultVect _vect;
261    static FaultStat _count;
262  public:
263    FaultName name() {return _name;}
264    FaultVect vect() {return _vect;}
265    FaultStat & countStat() {return _count;}
266};
267
268class PalFault : public MipsFault
269{
270  protected:
271    bool skipFaultingInstruction() {return true;}
272  private:
273    static FaultName _name;
274    static FaultVect _vect;
275    static FaultStat _count;
276  public:
277    FaultName name() {return _name;}
278    FaultVect vect() {return _vect;}
279    FaultStat & countStat() {return _count;}
280};
281
282class IntegerOverflowFault : public MipsFault
283{
284  private:
285    static FaultName _name;
286    static FaultVect _vect;
287    static FaultStat _count;
288  public:
289    FaultName name() {return _name;}
290    FaultVect vect() {return _vect;}
291    FaultStat & countStat() {return _count;}
292};
293
294} // MipsISA namespace
295
296#endif // __FAULTS_HH__
297