faults.cc revision 4661
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#include "arch/mips/faults.hh" 33#include "cpu/thread_context.hh" 34#include "cpu/base.hh" 35#include "base/trace.hh" 36 37#if !FULL_SYSTEM 38#include "sim/process.hh" 39#include "mem/page_table.hh" 40#endif 41 42namespace MipsISA 43{ 44 45FaultName MachineCheckFault::_name = "Machine Check"; 46FaultVect MachineCheckFault::_vect = 0x0401; 47FaultStat MachineCheckFault::_count; 48 49FaultName AlignmentFault::_name = "Alignment"; 50FaultVect AlignmentFault::_vect = 0x0301; 51FaultStat AlignmentFault::_count; 52 53FaultName ResetFault::_name = "reset"; 54FaultVect ResetFault::_vect = 0x0001; 55FaultStat ResetFault::_count; 56 57FaultName CoprocessorUnusableFault::_name = "Coprocessor Unusable"; 58FaultVect CoprocessorUnusableFault::_vect = 0xF001; 59FaultStat CoprocessorUnusableFault::_count; 60 61FaultName ReservedInstructionFault::_name = "Reserved Instruction"; 62FaultVect ReservedInstructionFault::_vect = 0x0F01; 63FaultStat ReservedInstructionFault::_count; 64 65FaultName ThreadFault::_name = "thread"; 66FaultVect ThreadFault::_vect = 0x00F1; 67FaultStat ThreadFault::_count; 68 69 70FaultName ArithmeticFault::_name = "arith"; 71FaultVect ArithmeticFault::_vect = 0x0501; 72FaultStat ArithmeticFault::_count; 73 74FaultName UnimplementedOpcodeFault::_name = "opdec"; 75FaultVect UnimplementedOpcodeFault::_vect = 0x0481; 76FaultStat UnimplementedOpcodeFault::_count; 77 78#if !FULL_SYSTEM 79//FaultName PageTableFault::_name = "page_table_fault"; 80//FaultVect PageTableFault::_vect = 0x0000; 81//FaultStat PageTableFault::_count; 82#endif 83 84FaultName InterruptFault::_name = "interrupt"; 85FaultVect InterruptFault::_vect = 0x0101; 86FaultStat InterruptFault::_count; 87 88FaultName NDtbMissFault::_name = "dtb_miss_single"; 89FaultVect NDtbMissFault::_vect = 0x0201; 90FaultStat NDtbMissFault::_count; 91 92FaultName PDtbMissFault::_name = "dtb_miss_double"; 93FaultVect PDtbMissFault::_vect = 0x0281; 94FaultStat PDtbMissFault::_count; 95 96FaultName DtbPageFault::_name = "dfault"; 97FaultVect DtbPageFault::_vect = 0x0381; 98FaultStat DtbPageFault::_count; 99 100FaultName DtbAcvFault::_name = "dfault"; 101FaultVect DtbAcvFault::_vect = 0x0381; 102FaultStat DtbAcvFault::_count; 103 104FaultName ItbMissFault::_name = "itbmiss"; 105FaultVect ItbMissFault::_vect = 0x0181; 106FaultStat ItbMissFault::_count; 107 108FaultName ItbPageFault::_name = "itbmiss"; 109FaultVect ItbPageFault::_vect = 0x0181; 110FaultStat ItbPageFault::_count; 111 112FaultName ItbAcvFault::_name = "iaccvio"; 113FaultVect ItbAcvFault::_vect = 0x0081; 114FaultStat ItbAcvFault::_count; 115 116FaultName FloatEnableFault::_name = "fen"; 117FaultVect FloatEnableFault::_vect = 0x0581; 118FaultStat FloatEnableFault::_count; 119 120FaultName IntegerOverflowFault::_name = "intover"; 121FaultVect IntegerOverflowFault::_vect = 0x0501; 122FaultStat IntegerOverflowFault::_count; 123 124FaultName DspStateDisabledFault::_name = "intover"; 125FaultVect DspStateDisabledFault::_vect = 0x001a; 126FaultStat DspStateDisabledFault::_count; 127 128 129/*void PageTableFault::invoke(ThreadContext *tc) 130{ 131 Process *p = tc->getProcessPtr(); 132 133 Addr page_addr = p->pTable->pageAlign(vaddr); 134 135 warn("%i: [tid:%i]: %s encountered @ addr %x. Allocating new page for address range %x - %x.\n", 136 curTick, tc->getThreadNum(), name(), vaddr, page_addr, page_addr+VMPageSize); 137 138 p->pTable->allocate(page_addr, VMPageSize); 139 140 return; 141} 142*/ 143 /* address is higher than the stack region or in the current stack region 144 if (vaddr > p->stack_base || vaddr > p->stack_min) 145 FaultBase::invoke(tc); 146 147 // We've accessed the next page 148 if (vaddr > p->stack_min - PageBytes) { 149 p->stack_min -= PageBytes; 150 if (p->stack_base - p->stack_min > 8*1024*1024) { 151 warn("Already allocated Over max stack size for one thread\n"); 152 } 153 warn("%i: Allocating page for range %x - %x", 154 curTick, p->stack_min, p->stack_min-PageBytes); 155 156 p->pTable->allocate(p->stack_min, PageBytes); 157 warn("Increasing stack size by one page."); 158 } else { 159 FaultBase::invoke(tc); 160 }*/ 161 162void ResetFault::invoke(ThreadContext *tc) 163{ 164 warn("[tid:%i]: %s encountered.\n", tc->getThreadNum(), name()); 165 //tc->getCpuPtr()->reset(); 166} 167 168void CoprocessorUnusableFault::invoke(ThreadContext *tc) 169{ 170 panic("[tid:%i]: %s encountered.\n", tc->getThreadNum(), name()); 171} 172 173void ReservedInstructionFault::invoke(ThreadContext *tc) 174{ 175 panic("[tid:%i]: %s encountered.\n", tc->getThreadNum(), name()); 176} 177 178void ThreadFault::invoke(ThreadContext *tc) 179{ 180 panic("[tid:%i]: %s encountered.\n", tc->getThreadNum(), name()); 181} 182 183void DspStateDisabledFault::invoke(ThreadContext *tc) 184{ 185 panic("[tid:%i]: %s encountered.\n", tc->getThreadNum(), name()); 186} 187 188} // namespace MipsISA 189 190