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Diffstat (limited to 'arch/alpha/faults.cc')
| -rw-r--r-- | arch/alpha/faults.cc | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/arch/alpha/faults.cc b/arch/alpha/faults.cc deleted file mode 100644 index 0083aa9f3..000000000 --- a/arch/alpha/faults.cc +++ /dev/null @@ -1,176 +0,0 @@ -/* - * 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/alpha/faults.hh" -#include "cpu/exec_context.hh" -#include "cpu/base.hh" -#include "base/trace.hh" -#if FULL_SYSTEM -#include "arch/alpha/ev5.hh" -#endif - -namespace AlphaISA -{ - -FaultName MachineCheckFault::_name = "mchk"; -FaultVect MachineCheckFault::_vect = 0x0401; -FaultStat MachineCheckFault::_count; - -FaultName AlignmentFault::_name = "unalign"; -FaultVect AlignmentFault::_vect = 0x0301; -FaultStat AlignmentFault::_count; - -FaultName ResetFault::_name = "reset"; -FaultVect ResetFault::_vect = 0x0001; -FaultStat ResetFault::_count; - -FaultName ArithmeticFault::_name = "arith"; -FaultVect ArithmeticFault::_vect = 0x0501; -FaultStat ArithmeticFault::_count; - -FaultName InterruptFault::_name = "interrupt"; -FaultVect InterruptFault::_vect = 0x0101; -FaultStat InterruptFault::_count; - -FaultName NDtbMissFault::_name = "dtb_miss_single"; -FaultVect NDtbMissFault::_vect = 0x0201; -FaultStat NDtbMissFault::_count; - -FaultName PDtbMissFault::_name = "dtb_miss_double"; -FaultVect PDtbMissFault::_vect = 0x0281; -FaultStat PDtbMissFault::_count; - -FaultName DtbPageFault::_name = "dfault"; -FaultVect DtbPageFault::_vect = 0x0381; -FaultStat DtbPageFault::_count; - -FaultName DtbAcvFault::_name = "dfault"; -FaultVect DtbAcvFault::_vect = 0x0381; -FaultStat DtbAcvFault::_count; - -FaultName DtbAlignmentFault::_name = "unalign"; -FaultVect DtbAlignmentFault::_vect = 0x0301; -FaultStat DtbAlignmentFault::_count; - -FaultName ItbMissFault::_name = "itbmiss"; -FaultVect ItbMissFault::_vect = 0x0181; -FaultStat ItbMissFault::_count; - -FaultName ItbPageFault::_name = "itbmiss"; -FaultVect ItbPageFault::_vect = 0x0181; -FaultStat ItbPageFault::_count; - -FaultName ItbAcvFault::_name = "iaccvio"; -FaultVect ItbAcvFault::_vect = 0x0081; -FaultStat ItbAcvFault::_count; - -FaultName UnimplementedOpcodeFault::_name = "opdec"; -FaultVect UnimplementedOpcodeFault::_vect = 0x0481; -FaultStat UnimplementedOpcodeFault::_count; - -FaultName FloatEnableFault::_name = "fen"; -FaultVect FloatEnableFault::_vect = 0x0581; -FaultStat FloatEnableFault::_count; - -FaultName PalFault::_name = "pal"; -FaultVect PalFault::_vect = 0x2001; -FaultStat PalFault::_count; - -FaultName IntegerOverflowFault::_name = "intover"; -FaultVect IntegerOverflowFault::_vect = 0x0501; -FaultStat IntegerOverflowFault::_count; - -#if FULL_SYSTEM - -void AlphaFault::invoke(ExecContext * xc) -{ - FaultBase::invoke(xc); - countStat()++; - - // exception restart address - if (setRestartAddress() || !xc->inPalMode()) - xc->setMiscReg(AlphaISA::IPR_EXC_ADDR, xc->readPC()); - - if (skipFaultingInstruction()) { - // traps... skip faulting instruction. - xc->setMiscReg(AlphaISA::IPR_EXC_ADDR, - xc->readMiscReg(AlphaISA::IPR_EXC_ADDR) + 4); - } - - xc->setPC(xc->readMiscReg(AlphaISA::IPR_PAL_BASE) + vect()); - xc->setNextPC(xc->readPC() + sizeof(MachInst)); -} - -void ArithmeticFault::invoke(ExecContext * xc) -{ - FaultBase::invoke(xc); - panic("Arithmetic traps are unimplemented!"); -} - -void DtbFault::invoke(ExecContext * xc) -{ - // Set fault address and flags. Even though we're modeling an - // EV5, we use the EV6 technique of not latching fault registers - // on VPTE loads (instead of locking the registers until IPR_VA is - // read, like the EV5). The EV6 approach is cleaner and seems to - // work with EV5 PAL code, but not the other way around. - if (!xc->misspeculating() - && !(reqFlags & VPTE) && !(reqFlags & NO_FAULT)) { - // set VA register with faulting address - xc->setMiscReg(AlphaISA::IPR_VA, vaddr); - - // set MM_STAT register flags - xc->setMiscReg(AlphaISA::IPR_MM_STAT, - (((EV5::Opcode(xc->getInst()) & 0x3f) << 11) - | ((EV5::Ra(xc->getInst()) & 0x1f) << 6) - | (flags & 0x3f))); - - // set VA_FORM register with faulting formatted address - xc->setMiscReg(AlphaISA::IPR_VA_FORM, - xc->readMiscReg(AlphaISA::IPR_MVPTBR) | (vaddr.vpn() << 3)); - } - - AlphaFault::invoke(xc); -} - -void ItbFault::invoke(ExecContext * xc) -{ - if (!xc->misspeculating()) { - xc->setMiscReg(AlphaISA::IPR_ITB_TAG, pc); - xc->setMiscReg(AlphaISA::IPR_IFAULT_VA_FORM, - xc->readMiscReg(AlphaISA::IPR_IVPTBR) | - (AlphaISA::VAddr(pc).vpn() << 3)); - } - - AlphaFault::invoke(xc); -} - -#endif - -} // namespace AlphaISA - |