faults.hh revision 3614 
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 __ALPHA_FAULTS_HH__
33#define __ALPHA_FAULTS_HH__
34
35#include "config/full_system.hh"
36#include "sim/faults.hh"
37
38#if FULL_SYSTEM
39#include "arch/alpha/pagetable.hh"
40#endif
41
42// The design of the "name" and "vect" functions is in sim/faults.hh
43
44namespace AlphaISA
45{
46
47typedef const Addr FaultVect;
48
49class AlphaFault : public FaultBase
50{
51  protected:
52    virtual bool skipFaultingInstruction() {return false;}
53    virtual bool setRestartAddress() {return true;}
54  public:
55#if FULL_SYSTEM
56    void invoke(ThreadContext * tc);
57#endif
58    virtual FaultVect vect() = 0;
59    virtual FaultStat & countStat() = 0;
60};
61
62class MachineCheckFault : public AlphaFault
63{
64  private:
65    static FaultName _name;
66    static FaultVect _vect;
67    static FaultStat _count;
68  public:
69    FaultName name() {return _name;}
70    FaultVect vect() {return _vect;}
71    FaultStat & countStat() {return _count;}
72    bool isMachineCheckFault() {return true;}
73};
74
75class AlignmentFault : public AlphaFault
76{
77  private:
78    static FaultName _name;
79    static FaultVect _vect;
80    static FaultStat _count;
81  public:
82    FaultName name() {return _name;}
83    FaultVect vect() {return _vect;}
84    FaultStat & countStat() {return _count;}
85    bool isAlignmentFault() {return true;}
86};
87
88#if !FULL_SYSTEM
89class PageTableFault : public AlphaFault
90{
91  private:
92    Addr vaddr;
93    static FaultName _name;
94    static FaultVect _vect;
95    static FaultStat _count;
96  public:
97    PageTableFault(Addr va)
98        : vaddr(va) {}
99    FaultName name() {return _name;}
100    FaultVect vect() {return _vect;}
101    FaultStat & countStat() {return _count;}
102    void invoke(ThreadContext * tc);
103};
104
105static inline Fault genPageTableFault(Addr va)
106{
107    return new PageTableFault(va);
108}
109#endif
110
111static inline Fault genMachineCheckFault()
112{
113    return new MachineCheckFault;
114}
115
116static inline Fault genAlignmentFault()
117{
118    return new AlignmentFault;
119}
120
121class ResetFault : public AlphaFault
122{
123  private:
124    static FaultName _name;
125    static FaultVect _vect;
126    static FaultStat _count;
127  public:
128    FaultName name() {return _name;}
129    FaultVect vect() {return _vect;}
130    FaultStat & countStat() {return _count;}
131};
132
133class ArithmeticFault : public AlphaFault
134{
135  protected:
136    bool skipFaultingInstruction() {return true;}
137  private:
138    static FaultName _name;
139    static FaultVect _vect;
140    static FaultStat _count;
141  public:
142    FaultName name() {return _name;}
143    FaultVect vect() {return _vect;}
144    FaultStat & countStat() {return _count;}
145#if FULL_SYSTEM
146    void invoke(ThreadContext * tc);
147#endif
148};
149
150class InterruptFault : public AlphaFault
151{
152  protected:
153    bool setRestartAddress() {return false;}
154  private:
155    static FaultName _name;
156    static FaultVect _vect;
157    static FaultStat _count;
158  public:
159    FaultName name() {return _name;}
160    FaultVect vect() {return _vect;}
161    FaultStat & countStat() {return _count;}
162};
163
164class DtbFault : public AlphaFault
165{
166#if FULL_SYSTEM
167  private:
168    AlphaISA::VAddr vaddr;
169    uint32_t reqFlags;
170    uint64_t flags;
171  public:
172    DtbFault(AlphaISA::VAddr _vaddr, uint32_t _reqFlags, uint64_t _flags)
173        : vaddr(_vaddr), reqFlags(_reqFlags), flags(_flags)
174    { }
175#endif
176    FaultName name() = 0;
177    FaultVect vect() = 0;
178    FaultStat & countStat() = 0;
179#if FULL_SYSTEM
180    void invoke(ThreadContext * tc);
181#endif
182};
183
184class NDtbMissFault : public DtbFault
185{
186  private:
187    static FaultName _name;
188    static FaultVect _vect;
189    static FaultStat _count;
190  public:
191#if FULL_SYSTEM
192    NDtbMissFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
193        : DtbFault(vaddr, reqFlags, flags)
194    { }
195#endif
196    FaultName name() {return _name;}
197    FaultVect vect() {return _vect;}
198    FaultStat & countStat() {return _count;}
199};
200
201class PDtbMissFault : public DtbFault
202{
203  private:
204    static FaultName _name;
205    static FaultVect _vect;
206    static FaultStat _count;
207  public:
208#if FULL_SYSTEM
209    PDtbMissFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
210        : DtbFault(vaddr, reqFlags, flags)
211    { }
212#endif
213    FaultName name() {return _name;}
214    FaultVect vect() {return _vect;}
215    FaultStat & countStat() {return _count;}
216};
217
218class DtbPageFault : public DtbFault
219{
220  private:
221    static FaultName _name;
222    static FaultVect _vect;
223    static FaultStat _count;
224  public:
225#if FULL_SYSTEM
226    DtbPageFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
227        : DtbFault(vaddr, reqFlags, flags)
228    { }
229#endif
230    FaultName name() {return _name;}
231    FaultVect vect() {return _vect;}
232    FaultStat & countStat() {return _count;}
233};
234
235class DtbAcvFault : public DtbFault
236{
237  private:
238    static FaultName _name;
239    static FaultVect _vect;
240    static FaultStat _count;
241  public:
242#if FULL_SYSTEM
243    DtbAcvFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
244        : DtbFault(vaddr, reqFlags, flags)
245    { }
246#endif
247    FaultName name() {return _name;}
248    FaultVect vect() {return _vect;}
249    FaultStat & countStat() {return _count;}
250};
251
252class DtbAlignmentFault : public DtbFault
253{
254  private:
255    static FaultName _name;
256    static FaultVect _vect;
257    static FaultStat _count;
258  public:
259#if FULL_SYSTEM
260    DtbAlignmentFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
261        : DtbFault(vaddr, reqFlags, flags)
262    { }
263#endif
264    FaultName name() {return _name;}
265    FaultVect vect() {return _vect;}
266    FaultStat & countStat() {return _count;}
267};
268
269class ItbFault : public AlphaFault
270{
271  private:
272    Addr pc;
273  public:
274    ItbFault(Addr _pc)
275        : pc(_pc)
276    { }
277    FaultName name() = 0;
278    FaultVect vect() = 0;
279    FaultStat & countStat() = 0;
280#if FULL_SYSTEM
281    void invoke(ThreadContext * tc);
282#endif
283};
284
285class ItbMissFault : public ItbFault
286{
287  private:
288    static FaultName _name;
289    static FaultVect _vect;
290    static FaultStat _count;
291  public:
292    ItbMissFault(Addr pc)
293        : ItbFault(pc)
294    { }
295    FaultName name() {return _name;}
296    FaultVect vect() {return _vect;}
297    FaultStat & countStat() {return _count;}
298};
299
300class ItbPageFault : public ItbFault
301{
302  private:
303    static FaultName _name;
304    static FaultVect _vect;
305    static FaultStat _count;
306  public:
307    ItbPageFault(Addr pc)
308        : ItbFault(pc)
309    { }
310    FaultName name() {return _name;}
311    FaultVect vect() {return _vect;}
312    FaultStat & countStat() {return _count;}
313};
314
315class ItbAcvFault : public ItbFault
316{
317  private:
318    static FaultName _name;
319    static FaultVect _vect;
320    static FaultStat _count;
321  public:
322    ItbAcvFault(Addr pc)
323        : ItbFault(pc)
324    { }
325    FaultName name() {return _name;}
326    FaultVect vect() {return _vect;}
327    FaultStat & countStat() {return _count;}
328};
329
330class UnimplementedOpcodeFault : public AlphaFault
331{
332  private:
333    static FaultName _name;
334    static FaultVect _vect;
335    static FaultStat _count;
336  public:
337    FaultName name() {return _name;}
338    FaultVect vect() {return _vect;}
339    FaultStat & countStat() {return _count;}
340};
341
342class FloatEnableFault : public AlphaFault
343{
344  private:
345    static FaultName _name;
346    static FaultVect _vect;
347    static FaultStat _count;
348  public:
349    FaultName name() {return _name;}
350    FaultVect vect() {return _vect;}
351    FaultStat & countStat() {return _count;}
352};
353
354class PalFault : public AlphaFault
355{
356  protected:
357    bool skipFaultingInstruction() {return true;}
358  private:
359    static FaultName _name;
360    static FaultVect _vect;
361    static FaultStat _count;
362  public:
363    FaultName name() {return _name;}
364    FaultVect vect() {return _vect;}
365    FaultStat & countStat() {return _count;}
366};
367
368class IntegerOverflowFault : public AlphaFault
369{
370  private:
371    static FaultName _name;
372    static FaultVect _vect;
373    static FaultStat _count;
374  public:
375    FaultName name() {return _name;}
376    FaultVect vect() {return _vect;}
377    FaultStat & countStat() {return _count;}
378};
379
380} // AlphaISA namespace
381
382#endif // __FAULTS_HH__
383