isa.hh revision 13615
16313Sgblack@eecs.umich.edu/* 26313Sgblack@eecs.umich.edu * Copyright (c) 2009 The Regents of The University of Michigan 36313Sgblack@eecs.umich.edu * All rights reserved. 46313Sgblack@eecs.umich.edu * 56313Sgblack@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 66313Sgblack@eecs.umich.edu * modification, are permitted provided that the following conditions are 76313Sgblack@eecs.umich.edu * met: redistributions of source code must retain the above copyright 86313Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 96313Sgblack@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 106313Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 116313Sgblack@eecs.umich.edu * documentation and/or other materials provided with the distribution; 126313Sgblack@eecs.umich.edu * neither the name of the copyright holders nor the names of its 136313Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 146313Sgblack@eecs.umich.edu * this software without specific prior written permission. 156313Sgblack@eecs.umich.edu * 166313Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 176313Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 186313Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 196313Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 206313Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 216313Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 226313Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 236313Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 246313Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 256313Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 266313Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 276313Sgblack@eecs.umich.edu * 286313Sgblack@eecs.umich.edu * Authors: Gabe Black 296313Sgblack@eecs.umich.edu */ 306313Sgblack@eecs.umich.edu 316313Sgblack@eecs.umich.edu#ifndef __ARCH_MIPS_ISA_HH__ 326313Sgblack@eecs.umich.edu#define __ARCH_MIPS_ISA_HH__ 336313Sgblack@eecs.umich.edu 348229Snate@binkert.org#include <queue> 356334Sgblack@eecs.umich.edu#include <string> 366334Sgblack@eecs.umich.edu#include <vector> 376334Sgblack@eecs.umich.edu 386334Sgblack@eecs.umich.edu#include "arch/mips/registers.hh" 396313Sgblack@eecs.umich.edu#include "arch/mips/types.hh" 4012106SRekai.GonzalezAlberquilla@arm.com#include "cpu/reg_class.hh" 416334Sgblack@eecs.umich.edu#include "sim/eventq.hh" 429384SAndreas.Sandberg@arm.com#include "sim/sim_object.hh" 436313Sgblack@eecs.umich.edu 446334Sgblack@eecs.umich.educlass BaseCPU; 456313Sgblack@eecs.umich.educlass Checkpoint; 466313Sgblack@eecs.umich.educlass EventManager; 479384SAndreas.Sandberg@arm.comstruct MipsISAParams; 486334Sgblack@eecs.umich.educlass ThreadContext; 496313Sgblack@eecs.umich.edu 506313Sgblack@eecs.umich.edunamespace MipsISA 516313Sgblack@eecs.umich.edu{ 529384SAndreas.Sandberg@arm.com class ISA : public SimObject 536313Sgblack@eecs.umich.edu { 546334Sgblack@eecs.umich.edu public: 556334Sgblack@eecs.umich.edu // The MIPS name for this file is CP0 or Coprocessor 0 566334Sgblack@eecs.umich.edu typedef ISA CP0; 576334Sgblack@eecs.umich.edu 589384SAndreas.Sandberg@arm.com typedef MipsISAParams Params; 599384SAndreas.Sandberg@arm.com 606313Sgblack@eecs.umich.edu protected: 618181Sksewell@umich.edu // Number of threads and vpes an individual ISA state can handle 628181Sksewell@umich.edu uint8_t numThreads; 638181Sksewell@umich.edu uint8_t numVpes; 648181Sksewell@umich.edu 656334Sgblack@eecs.umich.edu enum BankType { 666334Sgblack@eecs.umich.edu perProcessor, 676334Sgblack@eecs.umich.edu perThreadContext, 686334Sgblack@eecs.umich.edu perVirtProcessor 696334Sgblack@eecs.umich.edu }; 706334Sgblack@eecs.umich.edu 7113615Sgabeblack@google.com std::vector<std::vector<RegVal> > miscRegFile; 7213615Sgabeblack@google.com std::vector<std::vector<RegVal> > miscRegFile_WriteMask; 736334Sgblack@eecs.umich.edu std::vector<BankType> bankType; 746334Sgblack@eecs.umich.edu 756313Sgblack@eecs.umich.edu public: 768181Sksewell@umich.edu void clear(); 776334Sgblack@eecs.umich.edu 788181Sksewell@umich.edu void configCP(); 796334Sgblack@eecs.umich.edu 8010698Sandreas.hansson@arm.com unsigned getVPENum(ThreadID tid) const; 816334Sgblack@eecs.umich.edu 826334Sgblack@eecs.umich.edu ////////////////////////////////////////////////////////// 836334Sgblack@eecs.umich.edu // 846334Sgblack@eecs.umich.edu // READ/WRITE CP0 STATE 856334Sgblack@eecs.umich.edu // 866334Sgblack@eecs.umich.edu // 876334Sgblack@eecs.umich.edu ////////////////////////////////////////////////////////// 886334Sgblack@eecs.umich.edu //@TODO: MIPS MT's register view automatically connects 896334Sgblack@eecs.umich.edu // Status to TCStatus depending on current thread 906334Sgblack@eecs.umich.edu void updateCP0ReadView(int misc_reg, ThreadID tid) { } 9113615Sgabeblack@google.com RegVal readMiscRegNoEffect(int misc_reg, ThreadID tid = 0) const; 926334Sgblack@eecs.umich.edu 936334Sgblack@eecs.umich.edu //template <class TC> 9413615Sgabeblack@google.com RegVal readMiscReg(int misc_reg, ThreadContext *tc, ThreadID tid = 0); 956334Sgblack@eecs.umich.edu 9613615Sgabeblack@google.com RegVal filterCP0Write(int misc_reg, int reg_sel, RegVal val); 9713615Sgabeblack@google.com void setRegMask(int misc_reg, RegVal val, ThreadID tid = 0); 9813615Sgabeblack@google.com void setMiscRegNoEffect(int misc_reg, RegVal val, ThreadID tid=0); 996334Sgblack@eecs.umich.edu 1006334Sgblack@eecs.umich.edu //template <class TC> 10113615Sgabeblack@google.com void setMiscReg(int misc_reg, RegVal val, 10213582Sgabeblack@google.com ThreadContext *tc, ThreadID tid=0); 1036334Sgblack@eecs.umich.edu 1046334Sgblack@eecs.umich.edu ////////////////////////////////////////////////////////// 1056334Sgblack@eecs.umich.edu // 1066334Sgblack@eecs.umich.edu // DECLARE INTERFACE THAT WILL ALLOW A MiscRegFile (Cop0) 1076334Sgblack@eecs.umich.edu // TO SCHEDULE EVENTS 1086334Sgblack@eecs.umich.edu // 1096334Sgblack@eecs.umich.edu ////////////////////////////////////////////////////////// 1106334Sgblack@eecs.umich.edu 1116334Sgblack@eecs.umich.edu // Flag that is set when CP0 state has been written to. 1126334Sgblack@eecs.umich.edu bool cp0Updated; 1136334Sgblack@eecs.umich.edu 1146334Sgblack@eecs.umich.edu // Enumerated List of CP0 Event Types 1156334Sgblack@eecs.umich.edu enum CP0EventType { 1166334Sgblack@eecs.umich.edu UpdateCP0 1176334Sgblack@eecs.umich.edu }; 1186334Sgblack@eecs.umich.edu 11912124Sspwilson2@wisc.edu /** Process a CP0 event */ 12012124Sspwilson2@wisc.edu void processCP0Event(BaseCPU *cpu, CP0EventType); 1216334Sgblack@eecs.umich.edu 1226334Sgblack@eecs.umich.edu // Schedule a CP0 Update Event 1239180Sandreas.hansson@arm.com void scheduleCP0Update(BaseCPU *cpu, Cycles delay = Cycles(0)); 1246334Sgblack@eecs.umich.edu 1256334Sgblack@eecs.umich.edu // If any changes have been made, then check the state for changes 1266334Sgblack@eecs.umich.edu // and if necessary alert the CPU 1276806Sgblack@eecs.umich.edu void updateCPU(BaseCPU *cpu); 1286334Sgblack@eecs.umich.edu 1296334Sgblack@eecs.umich.edu static std::string miscRegNames[NumMiscRegs]; 1306334Sgblack@eecs.umich.edu 1316334Sgblack@eecs.umich.edu public: 1329461Snilay@cs.wisc.edu void startup(ThreadContext *tc) {} 1339461Snilay@cs.wisc.edu 1349553Sandreas.hansson@arm.com /// Explicitly import the otherwise hidden startup 1359553Sandreas.hansson@arm.com using SimObject::startup; 1369553Sandreas.hansson@arm.com 1379384SAndreas.Sandberg@arm.com const Params *params() const; 1389384SAndreas.Sandberg@arm.com 1399384SAndreas.Sandberg@arm.com ISA(Params *p); 1406313Sgblack@eecs.umich.edu 14112106SRekai.GonzalezAlberquilla@arm.com RegId flattenRegId(const RegId& regId) const { return regId; } 14212106SRekai.GonzalezAlberquilla@arm.com 1436313Sgblack@eecs.umich.edu int 14410035Sandreas.hansson@arm.com flattenIntIndex(int reg) const 1456313Sgblack@eecs.umich.edu { 1466313Sgblack@eecs.umich.edu return reg; 1476313Sgblack@eecs.umich.edu } 1486313Sgblack@eecs.umich.edu 1496313Sgblack@eecs.umich.edu int 15010035Sandreas.hansson@arm.com flattenFloatIndex(int reg) const 1516313Sgblack@eecs.umich.edu { 1526313Sgblack@eecs.umich.edu return reg; 1536313Sgblack@eecs.umich.edu } 1549920Syasuko.eckert@amd.com 15512109SRekai.GonzalezAlberquilla@arm.com int 15612109SRekai.GonzalezAlberquilla@arm.com flattenVecIndex(int reg) const 15712109SRekai.GonzalezAlberquilla@arm.com { 15812109SRekai.GonzalezAlberquilla@arm.com return reg; 15912109SRekai.GonzalezAlberquilla@arm.com } 16012109SRekai.GonzalezAlberquilla@arm.com 16112109SRekai.GonzalezAlberquilla@arm.com int 16212109SRekai.GonzalezAlberquilla@arm.com flattenVecElemIndex(int reg) const 16312109SRekai.GonzalezAlberquilla@arm.com { 16412109SRekai.GonzalezAlberquilla@arm.com return reg; 16512109SRekai.GonzalezAlberquilla@arm.com } 16612109SRekai.GonzalezAlberquilla@arm.com 16713610Sgiacomo.gabrielli@arm.com int 16813610Sgiacomo.gabrielli@arm.com flattenVecPredIndex(int reg) const 16913610Sgiacomo.gabrielli@arm.com { 17013610Sgiacomo.gabrielli@arm.com return reg; 17113610Sgiacomo.gabrielli@arm.com } 17213610Sgiacomo.gabrielli@arm.com 1739920Syasuko.eckert@amd.com // dummy 1749920Syasuko.eckert@amd.com int 17510035Sandreas.hansson@arm.com flattenCCIndex(int reg) const 1769920Syasuko.eckert@amd.com { 1779920Syasuko.eckert@amd.com return reg; 1789920Syasuko.eckert@amd.com } 17910033SAli.Saidi@ARM.com 18010033SAli.Saidi@ARM.com int 18110035Sandreas.hansson@arm.com flattenMiscIndex(int reg) const 18210033SAli.Saidi@ARM.com { 18310033SAli.Saidi@ARM.com return reg; 18410033SAli.Saidi@ARM.com } 18510033SAli.Saidi@ARM.com 1866313Sgblack@eecs.umich.edu }; 1876313Sgblack@eecs.umich.edu} 1886313Sgblack@eecs.umich.edu 1896313Sgblack@eecs.umich.edu#endif 190