faults.hh revision 12808
111723Sar4jc@virginia.edu/* 211723Sar4jc@virginia.edu * Copyright (c) 2016 RISC-V Foundation 311723Sar4jc@virginia.edu * Copyright (c) 2016 The University of Virginia 412808Srobert.scheffel1@tu-dresden.de * Copyright (c) 2018 TU Dresden 511723Sar4jc@virginia.edu * All rights reserved. 611723Sar4jc@virginia.edu * 711723Sar4jc@virginia.edu * Redistribution and use in source and binary forms, with or without 811723Sar4jc@virginia.edu * modification, are permitted provided that the following conditions are 911723Sar4jc@virginia.edu * met: redistributions of source code must retain the above copyright 1011723Sar4jc@virginia.edu * notice, this list of conditions and the following disclaimer; 1111723Sar4jc@virginia.edu * redistributions in binary form must reproduce the above copyright 1211723Sar4jc@virginia.edu * notice, this list of conditions and the following disclaimer in the 1311723Sar4jc@virginia.edu * documentation and/or other materials provided with the distribution; 1411723Sar4jc@virginia.edu * neither the name of the copyright holders nor the names of its 1511723Sar4jc@virginia.edu * contributors may be used to endorse or promote products derived from 1611723Sar4jc@virginia.edu * this software without specific prior written permission. 1711723Sar4jc@virginia.edu * 1811723Sar4jc@virginia.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1911723Sar4jc@virginia.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2011723Sar4jc@virginia.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2111723Sar4jc@virginia.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2211723Sar4jc@virginia.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2311723Sar4jc@virginia.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2411723Sar4jc@virginia.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2511723Sar4jc@virginia.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2611723Sar4jc@virginia.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2711723Sar4jc@virginia.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2811723Sar4jc@virginia.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2911723Sar4jc@virginia.edu * 3011723Sar4jc@virginia.edu * Authors: Alec Roelke 3112808Srobert.scheffel1@tu-dresden.de * Robert Scheffel 3211723Sar4jc@virginia.edu */ 3311723Sar4jc@virginia.edu 3411723Sar4jc@virginia.edu#ifndef __ARCH_RISCV_FAULTS_HH__ 3511723Sar4jc@virginia.edu#define __ARCH_RISCV_FAULTS_HH__ 3611723Sar4jc@virginia.edu 3711723Sar4jc@virginia.edu#include <string> 3811723Sar4jc@virginia.edu 3911723Sar4jc@virginia.edu#include "cpu/thread_context.hh" 4011723Sar4jc@virginia.edu#include "sim/faults.hh" 4111723Sar4jc@virginia.edu 4211723Sar4jc@virginia.edunamespace RiscvISA 4311723Sar4jc@virginia.edu{ 4411723Sar4jc@virginia.edu 4511725Sar4jc@virginia.educonst uint32_t FloatInexact = 1 << 0; 4611725Sar4jc@virginia.educonst uint32_t FloatUnderflow = 1 << 1; 4711725Sar4jc@virginia.educonst uint32_t FloatOverflow = 1 << 2; 4811725Sar4jc@virginia.educonst uint32_t FloatDivZero = 1 << 3; 4911725Sar4jc@virginia.educonst uint32_t FloatInvalid = 1 << 4; 5011725Sar4jc@virginia.edu 5111723Sar4jc@virginia.eduenum ExceptionCode { 5211723Sar4jc@virginia.edu INST_ADDR_MISALIGNED = 0, 5311723Sar4jc@virginia.edu INST_ACCESS = 1, 5411723Sar4jc@virginia.edu INST_ILLEGAL = 2, 5511723Sar4jc@virginia.edu BREAKPOINT = 3, 5611723Sar4jc@virginia.edu LOAD_ADDR_MISALIGNED = 4, 5711723Sar4jc@virginia.edu LOAD_ACCESS = 5, 5811723Sar4jc@virginia.edu STORE_ADDR_MISALIGNED = 6, 5911723Sar4jc@virginia.edu AMO_ADDR_MISALIGNED = 6, 6011723Sar4jc@virginia.edu STORE_ACCESS = 7, 6111723Sar4jc@virginia.edu AMO_ACCESS = 7, 6211723Sar4jc@virginia.edu ECALL_USER = 8, 6311723Sar4jc@virginia.edu ECALL_SUPER = 9, 6411723Sar4jc@virginia.edu ECALL_HYPER = 10, 6511723Sar4jc@virginia.edu ECALL_MACH = 11 6611723Sar4jc@virginia.edu}; 6711723Sar4jc@virginia.edu 6811723Sar4jc@virginia.eduenum InterruptCode { 6911723Sar4jc@virginia.edu SOFTWARE, 7011723Sar4jc@virginia.edu TIMER 7111723Sar4jc@virginia.edu}; 7211723Sar4jc@virginia.edu 7311723Sar4jc@virginia.educlass RiscvFault : public FaultBase 7411723Sar4jc@virginia.edu{ 7511723Sar4jc@virginia.edu protected: 7611723Sar4jc@virginia.edu const FaultName _name; 7711723Sar4jc@virginia.edu const ExceptionCode _code; 7811723Sar4jc@virginia.edu const InterruptCode _int; 7911723Sar4jc@virginia.edu 8011723Sar4jc@virginia.edu RiscvFault(FaultName n, ExceptionCode c, InterruptCode i) 8111723Sar4jc@virginia.edu : _name(n), _code(c), _int(i) 8211723Sar4jc@virginia.edu {} 8311723Sar4jc@virginia.edu 8411723Sar4jc@virginia.edu FaultName 8511723Sar4jc@virginia.edu name() const 8611723Sar4jc@virginia.edu { 8711723Sar4jc@virginia.edu return _name; 8811723Sar4jc@virginia.edu } 8911723Sar4jc@virginia.edu 9011723Sar4jc@virginia.edu ExceptionCode 9111723Sar4jc@virginia.edu exception() const 9211723Sar4jc@virginia.edu { 9311723Sar4jc@virginia.edu return _code; 9411723Sar4jc@virginia.edu } 9511723Sar4jc@virginia.edu 9611723Sar4jc@virginia.edu InterruptCode 9711723Sar4jc@virginia.edu interrupt() const 9811723Sar4jc@virginia.edu { 9911723Sar4jc@virginia.edu return _int; 10011723Sar4jc@virginia.edu } 10111723Sar4jc@virginia.edu 10211723Sar4jc@virginia.edu virtual void 10311723Sar4jc@virginia.edu invoke_se(ThreadContext *tc, const StaticInstPtr &inst); 10411723Sar4jc@virginia.edu 10511723Sar4jc@virginia.edu void 10611723Sar4jc@virginia.edu invoke(ThreadContext *tc, const StaticInstPtr &inst); 10711723Sar4jc@virginia.edu}; 10811723Sar4jc@virginia.edu 10912808Srobert.scheffel1@tu-dresden.declass Reset : public FaultBase 11012808Srobert.scheffel1@tu-dresden.de{ 11112808Srobert.scheffel1@tu-dresden.de 11212808Srobert.scheffel1@tu-dresden.de public: 11312808Srobert.scheffel1@tu-dresden.de Reset() 11412808Srobert.scheffel1@tu-dresden.de : _name("reset") 11512808Srobert.scheffel1@tu-dresden.de {} 11612808Srobert.scheffel1@tu-dresden.de 11712808Srobert.scheffel1@tu-dresden.de FaultName 11812808Srobert.scheffel1@tu-dresden.de name() const override 11912808Srobert.scheffel1@tu-dresden.de { 12012808Srobert.scheffel1@tu-dresden.de return _name; 12112808Srobert.scheffel1@tu-dresden.de } 12212808Srobert.scheffel1@tu-dresden.de 12312808Srobert.scheffel1@tu-dresden.de void 12412808Srobert.scheffel1@tu-dresden.de invoke(ThreadContext *tc, const StaticInstPtr &inst = 12512808Srobert.scheffel1@tu-dresden.de StaticInst::nullStaticInstPtr) override; 12612808Srobert.scheffel1@tu-dresden.de 12712808Srobert.scheffel1@tu-dresden.de private: 12812808Srobert.scheffel1@tu-dresden.de const FaultName _name; 12912808Srobert.scheffel1@tu-dresden.de}; 13011723Sar4jc@virginia.edu 13111723Sar4jc@virginia.educlass UnknownInstFault : public RiscvFault 13211723Sar4jc@virginia.edu{ 13311723Sar4jc@virginia.edu public: 13411723Sar4jc@virginia.edu UnknownInstFault() : RiscvFault("Unknown instruction", INST_ILLEGAL, 13511723Sar4jc@virginia.edu SOFTWARE) 13611723Sar4jc@virginia.edu {} 13711723Sar4jc@virginia.edu 13811723Sar4jc@virginia.edu void 13911723Sar4jc@virginia.edu invoke_se(ThreadContext *tc, const StaticInstPtr &inst); 14011723Sar4jc@virginia.edu}; 14111723Sar4jc@virginia.edu 14212136Sar4jc@virginia.educlass IllegalInstFault : public RiscvFault 14312136Sar4jc@virginia.edu{ 14412136Sar4jc@virginia.edu private: 14512136Sar4jc@virginia.edu const std::string reason; 14612136Sar4jc@virginia.edu public: 14712136Sar4jc@virginia.edu IllegalInstFault(std::string r) 14812136Sar4jc@virginia.edu : RiscvFault("Illegal instruction", INST_ILLEGAL, SOFTWARE), 14912136Sar4jc@virginia.edu reason(r) 15012136Sar4jc@virginia.edu {} 15112136Sar4jc@virginia.edu 15212136Sar4jc@virginia.edu void invoke_se(ThreadContext *tc, const StaticInstPtr &inst); 15312136Sar4jc@virginia.edu}; 15412136Sar4jc@virginia.edu 15511723Sar4jc@virginia.educlass UnimplementedFault : public RiscvFault 15611723Sar4jc@virginia.edu{ 15711723Sar4jc@virginia.edu private: 15811723Sar4jc@virginia.edu const std::string instName; 15911723Sar4jc@virginia.edu public: 16011723Sar4jc@virginia.edu UnimplementedFault(std::string name) 16111723Sar4jc@virginia.edu : RiscvFault("Unimplemented instruction", INST_ILLEGAL, SOFTWARE), 16211723Sar4jc@virginia.edu instName(name) 16311723Sar4jc@virginia.edu {} 16411723Sar4jc@virginia.edu 16511723Sar4jc@virginia.edu void 16611723Sar4jc@virginia.edu invoke_se(ThreadContext *tc, const StaticInstPtr &inst); 16711723Sar4jc@virginia.edu}; 16811723Sar4jc@virginia.edu 16911725Sar4jc@virginia.educlass IllegalFrmFault: public RiscvFault 17011725Sar4jc@virginia.edu{ 17111725Sar4jc@virginia.edu private: 17211725Sar4jc@virginia.edu const uint8_t frm; 17311725Sar4jc@virginia.edu public: 17411725Sar4jc@virginia.edu IllegalFrmFault(uint8_t r) 17511725Sar4jc@virginia.edu : RiscvFault("Illegal floating-point rounding mode", INST_ILLEGAL, 17611725Sar4jc@virginia.edu SOFTWARE), 17711725Sar4jc@virginia.edu frm(r) 17811725Sar4jc@virginia.edu {} 17911725Sar4jc@virginia.edu 18011725Sar4jc@virginia.edu void invoke_se(ThreadContext *tc, const StaticInstPtr &inst); 18111725Sar4jc@virginia.edu}; 18211725Sar4jc@virginia.edu 18311723Sar4jc@virginia.educlass BreakpointFault : public RiscvFault 18411723Sar4jc@virginia.edu{ 18511723Sar4jc@virginia.edu public: 18611723Sar4jc@virginia.edu BreakpointFault() : RiscvFault("Breakpoint", BREAKPOINT, SOFTWARE) 18711723Sar4jc@virginia.edu {} 18811723Sar4jc@virginia.edu 18911723Sar4jc@virginia.edu void 19011723Sar4jc@virginia.edu invoke_se(ThreadContext *tc, const StaticInstPtr &inst); 19111723Sar4jc@virginia.edu}; 19211723Sar4jc@virginia.edu 19311723Sar4jc@virginia.educlass SyscallFault : public RiscvFault 19411723Sar4jc@virginia.edu{ 19511723Sar4jc@virginia.edu public: 19611723Sar4jc@virginia.edu // TODO: replace ECALL_USER with the appropriate privilege level of the 19711723Sar4jc@virginia.edu // caller 19811723Sar4jc@virginia.edu SyscallFault() : RiscvFault("System call", ECALL_USER, SOFTWARE) 19911723Sar4jc@virginia.edu {} 20011723Sar4jc@virginia.edu 20111723Sar4jc@virginia.edu void 20211723Sar4jc@virginia.edu invoke_se(ThreadContext *tc, const StaticInstPtr &inst); 20311723Sar4jc@virginia.edu}; 20411723Sar4jc@virginia.edu 20511723Sar4jc@virginia.edu} // namespace RiscvISA 20611723Sar4jc@virginia.edu 20711723Sar4jc@virginia.edu#endif // __ARCH_RISCV_FAULTS_HH__ 208