faults.cc revision 2632:1bb2f91485ea 
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
29#include "arch/sparc/faults.hh"
30#include "cpu/exec_context.hh"
31#include "cpu/base.hh"
32#include "base/trace.hh"
33
34namespace SparcISA
35{
36
37FaultName     InternalProcessorError::_name = "intprocerr";
38TrapType      InternalProcessorError::_trapType = 0x029;
39FaultPriority InternalProcessorError::_priority = 4;
40FaultStat     InternalProcessorError::_count;
41
42FaultName     MemAddressNotAligned::_name = "unalign";
43TrapType      MemAddressNotAligned::_trapType = 0x034;
44FaultPriority MemAddressNotAligned::_priority = 10;
45FaultStat     MemAddressNotAligned::_count;
46
47FaultName     PowerOnReset::_name = "pow_reset";
48TrapType      PowerOnReset::_trapType = 0x001;
49FaultPriority PowerOnReset::_priority = 0;
50FaultStat     PowerOnReset::_count;
51
52FaultName     WatchDogReset::_name = "watch_dog_reset";
53TrapType      WatchDogReset::_trapType = 0x002;
54FaultPriority WatchDogReset::_priority = 1;
55FaultStat     WatchDogReset::_count;
56
57FaultName     ExternallyInitiatedReset::_name = "extern_reset";
58TrapType      ExternallyInitiatedReset::_trapType = 0x003;
59FaultPriority ExternallyInitiatedReset::_priority = 1;
60FaultStat     ExternallyInitiatedReset::_count;
61
62FaultName     SoftwareInitiatedReset::_name = "software_reset";
63TrapType      SoftwareInitiatedReset::_trapType = 0x004;
64FaultPriority SoftwareInitiatedReset::_priority = 1;
65FaultStat     SoftwareInitiatedReset::_count;
66
67FaultName     REDStateException::_name = "red_counte";
68TrapType      REDStateException::_trapType = 0x005;
69FaultPriority REDStateException::_priority = 1;
70FaultStat     REDStateException::_count;
71
72FaultName     InstructionAccessException::_name = "inst_access";
73TrapType      InstructionAccessException::_trapType = 0x008;
74FaultPriority InstructionAccessException::_priority = 5;
75FaultStat     InstructionAccessException::_count;
76
77FaultName     InstructionAccessMMUMiss::_name = "inst_mmu";
78TrapType      InstructionAccessMMUMiss::_trapType = 0x009;
79FaultPriority InstructionAccessMMUMiss::_priority = 2;
80FaultStat     InstructionAccessMMUMiss::_count;
81
82FaultName     InstructionAccessError::_name = "inst_error";
83TrapType      InstructionAccessError::_trapType = 0x00A;
84FaultPriority InstructionAccessError::_priority = 3;
85FaultStat     InstructionAccessError::_count;
86
87FaultName     IllegalInstruction::_name = "illegal_inst";
88TrapType      IllegalInstruction::_trapType = 0x010;
89FaultPriority IllegalInstruction::_priority = 7;
90FaultStat     IllegalInstruction::_count;
91
92FaultName     PrivilegedOpcode::_name = "priv_opcode";
93TrapType      PrivilegedOpcode::_trapType = 0x011;
94FaultPriority PrivilegedOpcode::_priority = 6;
95FaultStat     PrivilegedOpcode::_count;
96
97FaultName     UnimplementedLDD::_name = "unimp_ldd";
98TrapType      UnimplementedLDD::_trapType = 0x012;
99FaultPriority UnimplementedLDD::_priority = 6;
100FaultStat     UnimplementedLDD::_count;
101
102FaultName     UnimplementedSTD::_name = "unimp_std";
103TrapType      UnimplementedSTD::_trapType = 0x013;
104FaultPriority UnimplementedSTD::_priority = 6;
105FaultStat     UnimplementedSTD::_count;
106
107FaultName     FpDisabled::_name = "fp_disabled";
108TrapType      FpDisabled::_trapType = 0x020;
109FaultPriority FpDisabled::_priority = 8;
110FaultStat     FpDisabled::_count;
111
112FaultName     FpExceptionIEEE754::_name = "fp_754";
113TrapType      FpExceptionIEEE754::_trapType = 0x021;
114FaultPriority FpExceptionIEEE754::_priority = 11;
115FaultStat     FpExceptionIEEE754::_count;
116
117FaultName     FpExceptionOther::_name = "fp_other";
118TrapType      FpExceptionOther::_trapType = 0x022;
119FaultPriority FpExceptionOther::_priority = 11;
120FaultStat     FpExceptionOther::_count;
121
122FaultName     TagOverflow::_name = "tag_overflow";
123TrapType      TagOverflow::_trapType = 0x023;
124FaultPriority TagOverflow::_priority = 14;
125FaultStat     TagOverflow::_count;
126
127FaultName     DivisionByZero::_name = "div_by_zero";
128TrapType      DivisionByZero::_trapType = 0x028;
129FaultPriority DivisionByZero::_priority = 15;
130FaultStat     DivisionByZero::_count;
131
132FaultName     DataAccessException::_name = "data_access";
133TrapType      DataAccessException::_trapType = 0x030;
134FaultPriority DataAccessException::_priority = 12;
135FaultStat     DataAccessException::_count;
136
137FaultName     DataAccessMMUMiss::_name = "data_mmu";
138TrapType      DataAccessMMUMiss::_trapType = 0x031;
139FaultPriority DataAccessMMUMiss::_priority = 12;
140FaultStat     DataAccessMMUMiss::_count;
141
142FaultName     DataAccessError::_name = "data_error";
143TrapType      DataAccessError::_trapType = 0x032;
144FaultPriority DataAccessError::_priority = 12;
145FaultStat     DataAccessError::_count;
146
147FaultName     DataAccessProtection::_name = "data_protection";
148TrapType      DataAccessProtection::_trapType = 0x033;
149FaultPriority DataAccessProtection::_priority = 12;
150FaultStat     DataAccessProtection::_count;
151
152FaultName     LDDFMemAddressNotAligned::_name = "unalign_lddf";
153TrapType      LDDFMemAddressNotAligned::_trapType = 0x035;
154FaultPriority LDDFMemAddressNotAligned::_priority = 10;
155FaultStat     LDDFMemAddressNotAligned::_count;
156
157FaultName     STDFMemAddressNotAligned::_name = "unalign_stdf";
158TrapType      STDFMemAddressNotAligned::_trapType = 0x036;
159FaultPriority STDFMemAddressNotAligned::_priority = 10;
160FaultStat     STDFMemAddressNotAligned::_count;
161
162FaultName     PrivilegedAction::_name = "priv_action";
163TrapType      PrivilegedAction::_trapType = 0x037;
164FaultPriority PrivilegedAction::_priority = 11;
165FaultStat     PrivilegedAction::_count;
166
167FaultName     LDQFMemAddressNotAligned::_name = "unalign_ldqf";
168TrapType      LDQFMemAddressNotAligned::_trapType = 0x038;
169FaultPriority LDQFMemAddressNotAligned::_priority = 10;
170FaultStat     LDQFMemAddressNotAligned::_count;
171
172FaultName     STQFMemAddressNotAligned::_name = "unalign_stqf";
173TrapType      STQFMemAddressNotAligned::_trapType = 0x039;
174FaultPriority STQFMemAddressNotAligned::_priority = 10;
175FaultStat     STQFMemAddressNotAligned::_count;
176
177FaultName     AsyncDataError::_name = "async_data";
178TrapType      AsyncDataError::_trapType = 0x040;
179FaultPriority AsyncDataError::_priority = 2;
180FaultStat     AsyncDataError::_count;
181
182FaultName     CleanWindow::_name = "clean_win";
183TrapType      CleanWindow::_trapType = 0x024;
184FaultPriority CleanWindow::_priority = 10;
185FaultStat     CleanWindow::_count;
186
187//The enumerated faults
188
189FaultName     InterruptLevelN::_name = "interrupt_n";
190TrapType      InterruptLevelN::_baseTrapType = 0x041;
191FaultStat     InterruptLevelN::_count;
192
193FaultName     SpillNNormal::_name = "spill_n_normal";
194TrapType      SpillNNormal::_baseTrapType = 0x080;
195FaultPriority SpillNNormal::_priority = 9;
196FaultStat     SpillNNormal::_count;
197
198FaultName     SpillNOther::_name = "spill_n_other";
199TrapType      SpillNOther::_baseTrapType = 0x0A0;
200FaultPriority SpillNOther::_priority = 9;
201FaultStat     SpillNOther::_count;
202
203FaultName     FillNNormal::_name = "fill_n_normal";
204TrapType      FillNNormal::_baseTrapType = 0x0C0;
205FaultPriority FillNNormal::_priority = 9;
206FaultStat     FillNNormal::_count;
207
208FaultName     FillNOther::_name = "fill_n_other";
209TrapType      FillNOther::_baseTrapType = 0x0E0;
210FaultPriority FillNOther::_priority = 9;
211FaultStat     FillNOther::_count;
212
213FaultName     TrapInstruction::_name = "trap_inst_n";
214TrapType      TrapInstruction::_baseTrapType = 0x100;
215FaultPriority TrapInstruction::_priority = 16;
216FaultStat     TrapInstruction::_count;
217
218#if FULL_SYSTEM
219
220void SparcFault::invoke(ExecContext * xc)
221{
222    FaultBase::invoke(xc);
223    countStat()++;
224
225    //Use the SPARC trap state machine
226    /*// exception restart address
227    if (setRestartAddress() || !xc->inPalMode())
228        xc->setMiscReg(AlphaISA::IPR_EXC_ADDR, xc->regs.pc);
229
230    if (skipFaultingInstruction()) {
231        // traps...  skip faulting instruction.
232        xc->setMiscReg(AlphaISA::IPR_EXC_ADDR,
233                   xc->readMiscReg(AlphaISA::IPR_EXC_ADDR) + 4);
234    }
235
236    if (!xc->inPalMode())
237        AlphaISA::swap_palshadow(&(xc->regs), true);
238
239    xc->regs.pc = xc->readMiscReg(AlphaISA::IPR_PAL_BASE) + vect();
240    xc->regs.npc = xc->regs.pc + sizeof(MachInst);*/
241}
242
243#endif
244
245#if !FULL_SYSTEM
246
247void TrapInstruction::invoke(ExecContext * xc)
248{
249    xc->syscall(syscall_num);
250}
251
252#endif
253
254} // namespace SparcISA
255
256