faults.cc revision 2680 
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#include "arch/sparc/faults.hh"
33#include "cpu/thread_context.hh"
34#include "cpu/base.hh"
35#include "base/trace.hh"
36
37namespace SparcISA
38{
39
40FaultName     InternalProcessorError::_name = "intprocerr";
41TrapType      InternalProcessorError::_trapType = 0x029;
42FaultPriority InternalProcessorError::_priority = 4;
43FaultStat     InternalProcessorError::_count;
44
45FaultName     MemAddressNotAligned::_name = "unalign";
46TrapType      MemAddressNotAligned::_trapType = 0x034;
47FaultPriority MemAddressNotAligned::_priority = 10;
48FaultStat     MemAddressNotAligned::_count;
49
50FaultName     PowerOnReset::_name = "pow_reset";
51TrapType      PowerOnReset::_trapType = 0x001;
52FaultPriority PowerOnReset::_priority = 0;
53FaultStat     PowerOnReset::_count;
54
55FaultName     WatchDogReset::_name = "watch_dog_reset";
56TrapType      WatchDogReset::_trapType = 0x002;
57FaultPriority WatchDogReset::_priority = 1;
58FaultStat     WatchDogReset::_count;
59
60FaultName     ExternallyInitiatedReset::_name = "extern_reset";
61TrapType      ExternallyInitiatedReset::_trapType = 0x003;
62FaultPriority ExternallyInitiatedReset::_priority = 1;
63FaultStat     ExternallyInitiatedReset::_count;
64
65FaultName     SoftwareInitiatedReset::_name = "software_reset";
66TrapType      SoftwareInitiatedReset::_trapType = 0x004;
67FaultPriority SoftwareInitiatedReset::_priority = 1;
68FaultStat     SoftwareInitiatedReset::_count;
69
70FaultName     REDStateException::_name = "red_counte";
71TrapType      REDStateException::_trapType = 0x005;
72FaultPriority REDStateException::_priority = 1;
73FaultStat     REDStateException::_count;
74
75FaultName     InstructionAccessException::_name = "inst_access";
76TrapType      InstructionAccessException::_trapType = 0x008;
77FaultPriority InstructionAccessException::_priority = 5;
78FaultStat     InstructionAccessException::_count;
79
80FaultName     InstructionAccessMMUMiss::_name = "inst_mmu";
81TrapType      InstructionAccessMMUMiss::_trapType = 0x009;
82FaultPriority InstructionAccessMMUMiss::_priority = 2;
83FaultStat     InstructionAccessMMUMiss::_count;
84
85FaultName     InstructionAccessError::_name = "inst_error";
86TrapType      InstructionAccessError::_trapType = 0x00A;
87FaultPriority InstructionAccessError::_priority = 3;
88FaultStat     InstructionAccessError::_count;
89
90FaultName     IllegalInstruction::_name = "illegal_inst";
91TrapType      IllegalInstruction::_trapType = 0x010;
92FaultPriority IllegalInstruction::_priority = 7;
93FaultStat     IllegalInstruction::_count;
94
95FaultName     PrivilegedOpcode::_name = "priv_opcode";
96TrapType      PrivilegedOpcode::_trapType = 0x011;
97FaultPriority PrivilegedOpcode::_priority = 6;
98FaultStat     PrivilegedOpcode::_count;
99
100FaultName     UnimplementedLDD::_name = "unimp_ldd";
101TrapType      UnimplementedLDD::_trapType = 0x012;
102FaultPriority UnimplementedLDD::_priority = 6;
103FaultStat     UnimplementedLDD::_count;
104
105FaultName     UnimplementedSTD::_name = "unimp_std";
106TrapType      UnimplementedSTD::_trapType = 0x013;
107FaultPriority UnimplementedSTD::_priority = 6;
108FaultStat     UnimplementedSTD::_count;
109
110FaultName     FpDisabled::_name = "fp_disabled";
111TrapType      FpDisabled::_trapType = 0x020;
112FaultPriority FpDisabled::_priority = 8;
113FaultStat     FpDisabled::_count;
114
115FaultName     FpExceptionIEEE754::_name = "fp_754";
116TrapType      FpExceptionIEEE754::_trapType = 0x021;
117FaultPriority FpExceptionIEEE754::_priority = 11;
118FaultStat     FpExceptionIEEE754::_count;
119
120FaultName     FpExceptionOther::_name = "fp_other";
121TrapType      FpExceptionOther::_trapType = 0x022;
122FaultPriority FpExceptionOther::_priority = 11;
123FaultStat     FpExceptionOther::_count;
124
125FaultName     TagOverflow::_name = "tag_overflow";
126TrapType      TagOverflow::_trapType = 0x023;
127FaultPriority TagOverflow::_priority = 14;
128FaultStat     TagOverflow::_count;
129
130FaultName     DivisionByZero::_name = "div_by_zero";
131TrapType      DivisionByZero::_trapType = 0x028;
132FaultPriority DivisionByZero::_priority = 15;
133FaultStat     DivisionByZero::_count;
134
135FaultName     DataAccessException::_name = "data_access";
136TrapType      DataAccessException::_trapType = 0x030;
137FaultPriority DataAccessException::_priority = 12;
138FaultStat     DataAccessException::_count;
139
140FaultName     DataAccessMMUMiss::_name = "data_mmu";
141TrapType      DataAccessMMUMiss::_trapType = 0x031;
142FaultPriority DataAccessMMUMiss::_priority = 12;
143FaultStat     DataAccessMMUMiss::_count;
144
145FaultName     DataAccessError::_name = "data_error";
146TrapType      DataAccessError::_trapType = 0x032;
147FaultPriority DataAccessError::_priority = 12;
148FaultStat     DataAccessError::_count;
149
150FaultName     DataAccessProtection::_name = "data_protection";
151TrapType      DataAccessProtection::_trapType = 0x033;
152FaultPriority DataAccessProtection::_priority = 12;
153FaultStat     DataAccessProtection::_count;
154
155FaultName     LDDFMemAddressNotAligned::_name = "unalign_lddf";
156TrapType      LDDFMemAddressNotAligned::_trapType = 0x035;
157FaultPriority LDDFMemAddressNotAligned::_priority = 10;
158FaultStat     LDDFMemAddressNotAligned::_count;
159
160FaultName     STDFMemAddressNotAligned::_name = "unalign_stdf";
161TrapType      STDFMemAddressNotAligned::_trapType = 0x036;
162FaultPriority STDFMemAddressNotAligned::_priority = 10;
163FaultStat     STDFMemAddressNotAligned::_count;
164
165FaultName     PrivilegedAction::_name = "priv_action";
166TrapType      PrivilegedAction::_trapType = 0x037;
167FaultPriority PrivilegedAction::_priority = 11;
168FaultStat     PrivilegedAction::_count;
169
170FaultName     LDQFMemAddressNotAligned::_name = "unalign_ldqf";
171TrapType      LDQFMemAddressNotAligned::_trapType = 0x038;
172FaultPriority LDQFMemAddressNotAligned::_priority = 10;
173FaultStat     LDQFMemAddressNotAligned::_count;
174
175FaultName     STQFMemAddressNotAligned::_name = "unalign_stqf";
176TrapType      STQFMemAddressNotAligned::_trapType = 0x039;
177FaultPriority STQFMemAddressNotAligned::_priority = 10;
178FaultStat     STQFMemAddressNotAligned::_count;
179
180FaultName     AsyncDataError::_name = "async_data";
181TrapType      AsyncDataError::_trapType = 0x040;
182FaultPriority AsyncDataError::_priority = 2;
183FaultStat     AsyncDataError::_count;
184
185FaultName     CleanWindow::_name = "clean_win";
186TrapType      CleanWindow::_trapType = 0x024;
187FaultPriority CleanWindow::_priority = 10;
188FaultStat     CleanWindow::_count;
189
190//The enumerated faults
191
192FaultName     InterruptLevelN::_name = "interrupt_n";
193TrapType      InterruptLevelN::_baseTrapType = 0x041;
194FaultStat     InterruptLevelN::_count;
195
196FaultName     SpillNNormal::_name = "spill_n_normal";
197TrapType      SpillNNormal::_baseTrapType = 0x080;
198FaultPriority SpillNNormal::_priority = 9;
199FaultStat     SpillNNormal::_count;
200
201FaultName     SpillNOther::_name = "spill_n_other";
202TrapType      SpillNOther::_baseTrapType = 0x0A0;
203FaultPriority SpillNOther::_priority = 9;
204FaultStat     SpillNOther::_count;
205
206FaultName     FillNNormal::_name = "fill_n_normal";
207TrapType      FillNNormal::_baseTrapType = 0x0C0;
208FaultPriority FillNNormal::_priority = 9;
209FaultStat     FillNNormal::_count;
210
211FaultName     FillNOther::_name = "fill_n_other";
212TrapType      FillNOther::_baseTrapType = 0x0E0;
213FaultPriority FillNOther::_priority = 9;
214FaultStat     FillNOther::_count;
215
216FaultName     TrapInstruction::_name = "trap_inst_n";
217TrapType      TrapInstruction::_baseTrapType = 0x100;
218FaultPriority TrapInstruction::_priority = 16;
219FaultStat     TrapInstruction::_count;
220
221#if FULL_SYSTEM
222
223void SparcFault::invoke(ThreadContext * tc)
224{
225    FaultBase::invoke(tc);
226    countStat()++;
227
228    //Use the SPARC trap state machine
229    /*// exception restart address
230    if (setRestartAddress() || !tc->inPalMode())
231        tc->setMiscReg(AlphaISA::IPR_EXC_ADDR, tc->regs.pc);
232
233    if (skipFaultingInstruction()) {
234        // traps...  skip faulting instruction.
235        tc->setMiscReg(AlphaISA::IPR_EXC_ADDR,
236                   tc->readMiscReg(AlphaISA::IPR_EXC_ADDR) + 4);
237    }
238
239    if (!tc->inPalMode())
240        AlphaISA::swap_palshadow(&(tc->regs), true);
241
242    tc->regs.pc = tc->readMiscReg(AlphaISA::IPR_PAL_BASE) + vect();
243    tc->regs.npc = tc->regs.pc + sizeof(MachInst);*/
244}
245
246#endif
247
248#if !FULL_SYSTEM
249
250void TrapInstruction::invoke(ThreadContext * tc)
251{
252    tc->syscall(syscall_num);
253}
254
255#endif
256
257} // namespace SparcISA
258
259