faults.hh revision 4695:a63378aed062 
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() const {return _name;}
70    FaultVect vect() {return _vect;}
71    FaultStat & countStat() {return _count;}
72    bool isMachineCheckFault() const {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() 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
93static inline Fault genAlignmentFault()
94{
95    return new AlignmentFault;
96}
97
98class ResetFault : public AlphaFault
99{
100  private:
101    static FaultName _name;
102    static FaultVect _vect;
103    static FaultStat _count;
104  public:
105    FaultName name() const {return _name;}
106    FaultVect vect() {return _vect;}
107    FaultStat & countStat() {return _count;}
108};
109
110class ArithmeticFault : public AlphaFault
111{
112  protected:
113    bool skipFaultingInstruction() {return true;}
114  private:
115    static FaultName _name;
116    static FaultVect _vect;
117    static FaultStat _count;
118  public:
119    FaultName name() const {return _name;}
120    FaultVect vect() {return _vect;}
121    FaultStat & countStat() {return _count;}
122#if FULL_SYSTEM
123    void invoke(ThreadContext * tc);
124#endif
125};
126
127class InterruptFault : public AlphaFault
128{
129  protected:
130    bool setRestartAddress() {return false;}
131  private:
132    static FaultName _name;
133    static FaultVect _vect;
134    static FaultStat _count;
135  public:
136    FaultName name() const {return _name;}
137    FaultVect vect() {return _vect;}
138    FaultStat & countStat() {return _count;}
139};
140
141class DtbFault : public AlphaFault
142{
143#if FULL_SYSTEM
144  private:
145    AlphaISA::VAddr vaddr;
146    uint32_t reqFlags;
147    uint64_t flags;
148  public:
149    DtbFault(AlphaISA::VAddr _vaddr, uint32_t _reqFlags, uint64_t _flags)
150        : vaddr(_vaddr), reqFlags(_reqFlags), flags(_flags)
151    { }
152#endif
153    FaultName name() const = 0;
154    FaultVect vect() = 0;
155    FaultStat & countStat() = 0;
156#if FULL_SYSTEM
157    void invoke(ThreadContext * tc);
158#endif
159};
160
161class NDtbMissFault : public DtbFault
162{
163  private:
164    static FaultName _name;
165    static FaultVect _vect;
166    static FaultStat _count;
167  public:
168#if FULL_SYSTEM
169    NDtbMissFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
170        : DtbFault(vaddr, reqFlags, flags)
171    { }
172#endif
173    FaultName name() const {return _name;}
174    FaultVect vect() {return _vect;}
175    FaultStat & countStat() {return _count;}
176};
177
178class PDtbMissFault : public DtbFault
179{
180  private:
181    static FaultName _name;
182    static FaultVect _vect;
183    static FaultStat _count;
184  public:
185#if FULL_SYSTEM
186    PDtbMissFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
187        : DtbFault(vaddr, reqFlags, flags)
188    { }
189#endif
190    FaultName name() const {return _name;}
191    FaultVect vect() {return _vect;}
192    FaultStat & countStat() {return _count;}
193};
194
195class DtbPageFault : public DtbFault
196{
197  private:
198    static FaultName _name;
199    static FaultVect _vect;
200    static FaultStat _count;
201  public:
202#if FULL_SYSTEM
203    DtbPageFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
204        : DtbFault(vaddr, reqFlags, flags)
205    { }
206#endif
207    FaultName name() const {return _name;}
208    FaultVect vect() {return _vect;}
209    FaultStat & countStat() {return _count;}
210};
211
212class DtbAcvFault : public DtbFault
213{
214  private:
215    static FaultName _name;
216    static FaultVect _vect;
217    static FaultStat _count;
218  public:
219#if FULL_SYSTEM
220    DtbAcvFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
221        : DtbFault(vaddr, reqFlags, flags)
222    { }
223#endif
224    FaultName name() const {return _name;}
225    FaultVect vect() {return _vect;}
226    FaultStat & countStat() {return _count;}
227};
228
229class DtbAlignmentFault : public DtbFault
230{
231  private:
232    static FaultName _name;
233    static FaultVect _vect;
234    static FaultStat _count;
235  public:
236#if FULL_SYSTEM
237    DtbAlignmentFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
238        : DtbFault(vaddr, reqFlags, flags)
239    { }
240#endif
241    FaultName name() const {return _name;}
242    FaultVect vect() {return _vect;}
243    FaultStat & countStat() {return _count;}
244};
245
246class ItbFault : public AlphaFault
247{
248  private:
249    Addr pc;
250  public:
251    ItbFault(Addr _pc)
252        : pc(_pc)
253    { }
254    FaultName name() const = 0;
255    FaultVect vect() = 0;
256    FaultStat & countStat() = 0;
257#if FULL_SYSTEM
258    void invoke(ThreadContext * tc);
259#endif
260};
261
262class ItbMissFault : public ItbFault
263{
264  private:
265    static FaultName _name;
266    static FaultVect _vect;
267    static FaultStat _count;
268  public:
269    ItbMissFault(Addr pc)
270        : ItbFault(pc)
271    { }
272    FaultName name() const {return _name;}
273    FaultVect vect() {return _vect;}
274    FaultStat & countStat() {return _count;}
275};
276
277class ItbPageFault : public ItbFault
278{
279  private:
280    static FaultName _name;
281    static FaultVect _vect;
282    static FaultStat _count;
283  public:
284    ItbPageFault(Addr pc)
285        : ItbFault(pc)
286    { }
287    FaultName name() const {return _name;}
288    FaultVect vect() {return _vect;}
289    FaultStat & countStat() {return _count;}
290};
291
292class ItbAcvFault : public ItbFault
293{
294  private:
295    static FaultName _name;
296    static FaultVect _vect;
297    static FaultStat _count;
298  public:
299    ItbAcvFault(Addr pc)
300        : ItbFault(pc)
301    { }
302    FaultName name() const {return _name;}
303    FaultVect vect() {return _vect;}
304    FaultStat & countStat() {return _count;}
305};
306
307class UnimplementedOpcodeFault : public AlphaFault
308{
309  private:
310    static FaultName _name;
311    static FaultVect _vect;
312    static FaultStat _count;
313  public:
314    FaultName name() const {return _name;}
315    FaultVect vect() {return _vect;}
316    FaultStat & countStat() {return _count;}
317};
318
319class FloatEnableFault : public AlphaFault
320{
321  private:
322    static FaultName _name;
323    static FaultVect _vect;
324    static FaultStat _count;
325  public:
326    FaultName name() const {return _name;}
327    FaultVect vect() {return _vect;}
328    FaultStat & countStat() {return _count;}
329};
330
331class PalFault : public AlphaFault
332{
333  protected:
334    bool skipFaultingInstruction() {return true;}
335  private:
336    static FaultName _name;
337    static FaultVect _vect;
338    static FaultStat _count;
339  public:
340    FaultName name() const {return _name;}
341    FaultVect vect() {return _vect;}
342    FaultStat & countStat() {return _count;}
343};
344
345class IntegerOverflowFault : public AlphaFault
346{
347  private:
348    static FaultName _name;
349    static FaultVect _vect;
350    static FaultStat _count;
351  public:
352    FaultName name() const {return _name;}
353    FaultVect vect() {return _vect;}
354    FaultStat & countStat() {return _count;}
355};
356
357} // AlphaISA namespace
358
359#endif // __FAULTS_HH__
360