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gem5/arch/sparc/faults.cc
Gabe Black d4b246b3e9 Implemented SPARC fault classes. 
arch/sparc/faults.cc:
arch/sparc/faults.hh:
    Implemented the SPARC fault classes. The invoke method still needs to be written, but this depends on the misc regfile.

--HG--
extra : convert_revision : bc9d2785600cee5ea1cba72e563ca5d1a20f37fd
2006-03-07 04:32:34 -05:00

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/*
* Copyright (c) 2003-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "arch/sparc/faults.hh"
#include "cpu/exec_context.hh"
#include "cpu/base.hh"
#include "base/trace.hh"
namespace SparcISA
{
FaultName InternalProcessorError::_name = "intprocerr";
TrapType InternalProcessorError::_trapType = 0x029;
FaultPriority InternalProcessorError::_priority = 4;
FaultStat InternalProcessorError::_count;
FaultName MemAddressNotAligned::_name = "unalign";
TrapType MemAddressNotAligned::_trapType = 0x034;
FaultPriority MemAddressNotAligned::_priority = 10;
FaultStat MemAddressNotAligned::_count;
FaultName PowerOnReset::_name = "pow_reset";
TrapType PowerOnReset::_trapType = 0x001;
FaultPriority PowerOnReset::_priority = 0;
FaultStat PowerOnReset::_count;
FaultName WatchDogReset::_name = "watch_dog_reset";
TrapType WatchDogReset::_trapType = 0x002;
FaultPriority WatchDogReset::_priority = 1;
FaultStat WatchDogReset::_count;
FaultName ExternallyInitiatedReset::_name = "extern_reset";
TrapType ExternallyInitiatedReset::_trapType = 0x003;
FaultPriority ExternallyInitiatedReset::_priority = 1;
FaultStat ExternallyInitiatedReset::_count;
FaultName SoftwareInitiatedReset::_name = "software_reset";
TrapType SoftwareInitiatedReset::_trapType = 0x004;
FaultPriority SoftwareInitiatedReset::_priority = 1;
FaultStat SoftwareInitiatedReset::_count;
FaultName REDStateException::_name = "red_counte";
TrapType REDStateException::_trapType = 0x005;
FaultPriority REDStateException::_priority = 1;
FaultStat REDStateException::_count;
FaultName InstructionAccessException::_name = "inst_access";
TrapType InstructionAccessException::_trapType = 0x008;
FaultPriority InstructionAccessException::_priority = 5;
FaultStat InstructionAccessException::_count;
FaultName InstructionAccessMMUMiss::_name = "inst_mmu";
TrapType InstructionAccessMMUMiss::_trapType = 0x009;
FaultPriority InstructionAccessMMUMiss::_priority = 2;
FaultStat InstructionAccessMMUMiss::_count;
FaultName InstructionAccessError::_name = "inst_error";
TrapType InstructionAccessError::_trapType = 0x00A;
FaultPriority InstructionAccessError::_priority = 3;
FaultStat InstructionAccessError::_count;
FaultName IllegalInstruction::_name = "illegal_inst";
TrapType IllegalInstruction::_trapType = 0x010;
FaultPriority IllegalInstruction::_priority = 7;
FaultStat IllegalInstruction::_count;
FaultName PrivelegedOpcode::_name = "priv_opcode";
TrapType PrivelegedOpcode::_trapType = 0x011;
FaultPriority PrivelegedOpcode::_priority = 6;
FaultStat PrivelegedOpcode::_count;
FaultName UnimplementedLDD::_name = "unimp_ldd";
TrapType UnimplementedLDD::_trapType = 0x012;
FaultPriority UnimplementedLDD::_priority = 6;
FaultStat UnimplementedLDD::_count;
FaultName UnimplementedSTD::_name = "unimp_std";
TrapType UnimplementedSTD::_trapType = 0x013;
FaultPriority UnimplementedSTD::_priority = 6;
FaultStat UnimplementedSTD::_count;
FaultName FpDisabled::_name = "fp_disabled";
TrapType FpDisabled::_trapType = 0x020;
FaultPriority FpDisabled::_priority = 8;
FaultStat FpDisabled::_count;
FaultName FpExceptionIEEE754::_name = "fp_754";
TrapType FpExceptionIEEE754::_trapType = 0x021;
FaultPriority FpExceptionIEEE754::_priority = 11;
FaultStat FpExceptionIEEE754::_count;
FaultName FpExceptionOther::_name = "fp_other";
TrapType FpExceptionOther::_trapType = 0x022;
FaultPriority FpExceptionOther::_priority = 11;
FaultStat FpExceptionOther::_count;
FaultName TagOverflow::_name = "tag_overflow";
TrapType TagOverflow::_trapType = 0x023;
FaultPriority TagOverflow::_priority = 14;
FaultStat TagOverflow::_count;
FaultName DivisionByZero::_name = "div_by_zero";
TrapType DivisionByZero::_trapType = 0x028;
FaultPriority DivisionByZero::_priority = 15;
FaultStat DivisionByZero::_count;
FaultName DataAccessException::_name = "data_access";
TrapType DataAccessException::_trapType = 0x030;
FaultPriority DataAccessException::_priority = 12;
FaultStat DataAccessException::_count;
FaultName DataAccessMMUMiss::_name = "data_mmu";
TrapType DataAccessMMUMiss::_trapType = 0x031;
FaultPriority DataAccessMMUMiss::_priority = 12;
FaultStat DataAccessMMUMiss::_count;
FaultName DataAccessError::_name = "data_error";
TrapType DataAccessError::_trapType = 0x032;
FaultPriority DataAccessError::_priority = 12;
FaultStat DataAccessError::_count;
FaultName DataAccessProtection::_name = "data_protection";
TrapType DataAccessProtection::_trapType = 0x033;
FaultPriority DataAccessProtection::_priority = 12;
FaultStat DataAccessProtection::_count;
FaultName LDDFMemAddressNotAligned::_name = "unalign_lddf";
TrapType LDDFMemAddressNotAligned::_trapType = 0x035;
FaultPriority LDDFMemAddressNotAligned::_priority = 10;
FaultStat LDDFMemAddressNotAligned::_count;
FaultName STDFMemAddressNotAligned::_name = "unalign_stdf";
TrapType STDFMemAddressNotAligned::_trapType = 0x036;
FaultPriority STDFMemAddressNotAligned::_priority = 10;
FaultStat STDFMemAddressNotAligned::_count;
FaultName PrivelegedAction::_name = "priv_action";
TrapType PrivelegedAction::_trapType = 0x037;
FaultPriority PrivelegedAction::_priority = 11;
FaultStat PrivelegedAction::_count;
FaultName LDQFMemAddressNotAligned::_name = "unalign_ldqf";
TrapType LDQFMemAddressNotAligned::_trapType = 0x038;
FaultPriority LDQFMemAddressNotAligned::_priority = 10;
FaultStat LDQFMemAddressNotAligned::_count;
FaultName STQFMemAddressNotAligned::_name = "unalign_stqf";
TrapType STQFMemAddressNotAligned::_trapType = 0x039;
FaultPriority STQFMemAddressNotAligned::_priority = 10;
FaultStat STQFMemAddressNotAligned::_count;
FaultName AsyncDataError::_name = "async_data";
TrapType AsyncDataError::_trapType = 0x040;
FaultPriority AsyncDataError::_priority = 2;
FaultStat AsyncDataError::_count;
//The enumerated faults
FaultName CleanWindow::_name = "clean_win";
TrapType CleanWindow::_baseTrapType = 0x024;
FaultPriority CleanWindow::_priority = 10;
FaultStat CleanWindow::_count;
FaultName InterruptLevelN::_name = "interrupt_n";
TrapType InterruptLevelN::_baseTrapType = 0x041;
FaultStat InterruptLevelN::_count;
FaultName SpillNNormal::_name = "spill_n_normal";
TrapType SpillNNormal::_baseTrapType = 0x080;
FaultPriority SpillNNormal::_priority = 9;
FaultStat SpillNNormal::_count;
FaultName SpillNOther::_name = "spill_n_other";
TrapType SpillNOther::_baseTrapType = 0x0A0;
FaultPriority SpillNOther::_priority = 9;
FaultStat SpillNOther::_count;
FaultName FillNNormal::_name = "fill_n_normal";
TrapType FillNNormal::_baseTrapType = 0x0C0;
FaultPriority FillNNormal::_priority = 9;
FaultStat FillNNormal::_count;
FaultName FillNOther::_name = "fill_n_other";
TrapType FillNOther::_baseTrapType = 0x0E0;
FaultPriority FillNOther::_priority = 9;
FaultStat FillNOther::_count;
FaultName TrapInstruction::_name = "trap_inst_n";
TrapType TrapInstruction::_baseTrapType = 0x100;
FaultPriority TrapInstruction::_priority = 16;
FaultStat TrapInstruction::_count;
#if FULL_SYSTEM
void SparcFault::invoke(ExecContext * xc)
{
FaultBase::invoke(xc);
countStat()++;
//Use the SPARC trap state machine
/*// exception restart address
if (setRestartAddress() || !xc->inPalMode())
xc->setMiscReg(AlphaISA::IPR_EXC_ADDR, xc->regs.pc);
if (skipFaultingInstruction()) {
// traps... skip faulting instruction.
xc->setMiscReg(AlphaISA::IPR_EXC_ADDR,
xc->readMiscReg(AlphaISA::IPR_EXC_ADDR) + 4);
}
if (!xc->inPalMode())
AlphaISA::swap_palshadow(&(xc->regs), true);
xc->regs.pc = xc->readMiscReg(AlphaISA::IPR_PAL_BASE) + vect();
xc->regs.npc = xc->regs.pc + sizeof(MachInst);*/
}
#endif
} // namespace SparcISA
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