diff options
Diffstat (limited to 'arch/mips/isa_traits.cc')
| -rw-r--r-- | arch/mips/isa_traits.cc | 273 |
1 files changed, 263 insertions, 10 deletions
diff --git a/arch/mips/isa_traits.cc b/arch/mips/isa_traits.cc index 02a857af7..85afd4a02 100644 --- a/arch/mips/isa_traits.cc +++ b/arch/mips/isa_traits.cc @@ -33,6 +33,256 @@ using namespace MipsISA; + +void +MipsISA::getMiscRegIdx(int reg_name,int &idx, int &sel) +{ + switch(reg_name) + { + case Index: idx = 0; sel = 0; break; //0-0 Index into the TLB array + case MVPControl: idx = 0; sel = 1; break; //0-1 Per-processor register containing global + case MVPConf0: idx = 0; sel = 2; break; //0-2 Per-processor register containing global + case MVPConf1: idx = 0; sel = 3; break; //0-3 Per-processor register containing global + case Random: idx = 1; sel = 3; break; //1-0 Randomly generated index into the TLB array + case VPEControl: idx = 1; sel = 1; break; //1-1 Per-VPE register containing relatively volatile + //thread configuration data + case VPEConf0: idx = 1; sel = 2; break; //1-2 Per-VPE multi-thread configuration + //information + case VPEConf1: idx = 1; sel = 3; break; //1-3 Per-VPE multi-thread configuration + //information + case YQMask: idx = 1; sel = 4; break; //Per-VPE register defining which YIELD + //qualifier bits may be used without generating + //an exception + case VPESchedule: idx = 1; sel = 5; break; + case VPEScheFBack: idx = 1; sel = 6; break; + case VPEOpt: idx = 1; sel = 7; break; + case EntryLo0: idx = 1; sel = 5; break; + case TCStatus: idx = 1; sel = 5; break; + case TCBind: idx = 1; sel = 5; break; + case TCRestart: idx = 1; sel = 5; break; + case TCHalt: idx = 1; sel = 5; break; + case TCContext: idx = 1; sel = 5; break; + case TCSchedule: idx = 1; sel = 5; break; + case TCScheFBack: panic("Accessing Unimplemented CP0 Register"); break; + case EntryLo1: panic("Accessing Unimplemented CP0 Register"); break; + case Context: panic("Accessing Unimplemented CP0 Register"); break; + case ContextConfig: panic("Accessing Unimplemented CP0 Register"); break; + //case PageMask: panic("Accessing Unimplemented CP0 Register"); break; + case PageGrain: panic("Accessing Unimplemented CP0 Register"); break; + case Wired: panic("Accessing Unimplemented CP0 Register"); break; + case SRSConf0: panic("Accessing Unimplemented CP0 Register"); break; + case SRSConf1: panic("Accessing Unimplemented CP0 Register"); break; + case SRSConf2: panic("Accessing Unimplemented CP0 Register"); break; + case SRSConf3: panic("Accessing Unimplemented CP0 Register"); break; + case SRSConf4: panic("Accessing Unimplemented CP0 Register"); break; + case BadVAddr: panic("Accessing Unimplemented CP0 Register"); break; + case Count: panic("Accessing Unimplemented CP0 Register"); break; + case EntryHi: panic("Accessing Unimplemented CP0 Register"); break; + case Compare: panic("Accessing Unimplemented CP0 Register"); break; + case Status: idx = 12; sel = 0; break; //12-0 Processor status and control + case IntCtl: idx = 12; sel = 1; break; //12-1 Interrupt system status and control + case SRSCtl: idx = 12; sel = 2; break; //12-2 Shadow register set status and control + case SRSMap: idx = 12; sel = 3; break; //12-3 Shadow set IPL mapping + case Cause: idx = 13; sel = 0; break; //13-0 Cause of last general exception + case EPC: idx = 14; sel = 0; break; //14-0 Program counter at last exception + case PRId: idx = 15; sel = 0; break; //15-0 Processor identification and revision + case EBase: idx = 15; sel = 1; break; //15-1 Exception vector base register + case Config: panic("Accessing Unimplemented CP0 Register"); break; + case Config1: panic("Accessing Unimplemented CP0 Register"); break; + case Config2: panic("Accessing Unimplemented CP0 Register"); break; + case Config3: panic("Accessing Unimplemented CP0 Register"); break; + case LLAddr: panic("Accessing Unimplemented CP0 Register"); break; + case WatchLo: panic("Accessing Unimplemented CP0 Register"); break; + case WatchHi: panic("Accessing Unimplemented CP0 Register"); break; + case Debug: panic("Accessing Unimplemented CP0 Register"); break; + case TraceControl1: panic("Accessing Unimplemented CP0 Register"); break; + case TraceControl2: panic("Accessing Unimplemented CP0 Register"); break; + case UserTraceData: panic("Accessing Unimplemented CP0 Register"); break; + case TraceBPC: panic("Accessing Unimplemented CP0 Register"); break; + case DEPC: panic("Accessing Unimplemented CP0 Register"); break; + case PerfCnt: panic("Accessing Unimplemented CP0 Register"); break; + case ErrCtl: panic("Accessing Unimplemented CP0 Register"); break; + case CacheErr0: panic("Accessing Unimplemented CP0 Register"); break; + case CacheErr1: panic("Accessing Unimplemented CP0 Register"); break; + case CacheErr2: panic("Accessing Unimplemented CP0 Register"); break; + case CacheErr3: panic("Accessing Unimplemented CP0 Register"); break; + case TagLo: panic("Accessing Unimplemented CP0 Register"); break; + case DataLo: panic("Accessing Unimplemented CP0 Register"); break; + case TagHi: panic("Accessing Unimplemented CP0 Register"); break; + case DataHi: panic("Accessing Unimplemented CP0 Register"); break; + case ErrorEPC: panic("Accessing Unimplemented CP0 Register"); break; + + default: + panic("Accessing Unimplemented Misc. Register"); + } +} + +void RegFile::coldReset() +{ + //CP0 Random Reg: + //Randomly generated index into the TLB array + miscRegs[1][0] = 0x0000003f; + + //CP0 Wired Reg. + miscRegs[6][0] = 0x0000000; + + //CP0 HWRENA + miscRegs[7][0] = 0x0000000; + + //CP0 Status Reg. + miscRegs[12][0] = 0x0400004; + + //CP0 INTCNTL + miscRegs[12][1] = 0xfc00000; + + //CP0 SRSCNTL + miscRegs[12][2] = 0x0c00000; + + //CP0 SRSMAP + miscRegs[12][3] = 0x0000000; + + //CP0 Cause + miscRegs[13][0] = 0x0000000; + + //CP0 Processor ID + miscRegs[15][0] = 0x0019300; + + //CP0 EBASE + miscRegs[15][1] = 0x8000000; + + //CP0 Config Reg. + miscRegs[16][0] = 0x80040482; + + //CP0 Config 1 Reg. + miscRegs[16][1] = 0xfee3719e; + + //CP0 Config 2 Reg. + miscRegs[16][2] = 0x8000000; + + //CP0 Config 3 Reg. + miscRegs[16][3] = 0x0000020; + + //CP0 Config 7 Reg. + miscRegs[16][7] = 0x0000000; + + //CP0 Debug + miscRegs[23][0] = 0x0201800; + + //CP0 PERFCNTL1 + miscRegs[25][0] = 0x0000000; + + //CP0 PERFCNTL2 + miscRegs[25][1] = 0x0000000; + +} + +void RegFile::createCP0Regs() +{ +//Resize Coprocessor Register Banks to +// the number specified in MIPS32K VOL.III +// Chapter 8 + // + //Cop-0 Regs. Bank 0: Index, + miscRegs[0].resize(4); + + //Cop-0 Regs. Bank 1: + miscRegs[1].resize(8); + + //Cop-0 Regs. Bank 2: + miscRegs[2].resize(8); + + //Cop-0 Regs. Bank 3: + miscRegs[3].resize(1); + + //Cop-0 Regs. Bank 4: + miscRegs[4].resize(2); + + //Cop-0 Regs. Bank 5: + miscRegs[5].resize(2); + + //Cop-0 Regs. Bank 6: + miscRegs[6].resize(6); + + //Cop-0 Regs. Bank 7: + miscRegs[7].resize(1); + + //Cop-0 Regs. Bank 8: + miscRegs[8].resize(1); + + //Cop-0 Regs. Bank 9: + miscRegs[9].resize(1); + + //Cop-0 Regs. Bank 10: + miscRegs[10].resize(1); + + //Cop-0 Regs. Bank 11: + miscRegs[11].resize(1); + + //Cop-0 Regs. Bank 12: + miscRegs[12].resize(4); + + //Cop-0 Regs. Bank 13: + miscRegs[13].resize(1); + + //Cop-0 Regs. Bank 14: + miscRegs[14].resize(1); + + //Cop-0 Regs. Bank 15: + miscRegs[15].resize(2); + + //Cop-0 Regs. Bank 16: + miscRegs[16].resize(4); + + //Cop-0 Regs. Bank 17: + miscRegs[17].resize(1); + + //Cop-0 Regs. Bank 18: + miscRegs[18].resize(8); + + //Cop-0 Regs. Bank 19: + miscRegs[19].resize(8); + + //Cop-0 Regs. Bank 20: + miscRegs[20].resize(1); + + //Cop-0 Regs. Bank 21: + //miscRegs[21].resize(1); + //Reserved for future extensions + + //Cop-0 Regs. Bank 22: + //miscRegs[22].resize(4); + //Available for implementation dependent use + + //Cop-0 Regs. Bank 23: + miscRegs[23].resize(5); + + //Cop-0 Regs. Bank 24: + miscRegs[24].resize(1); + + //Cop-0 Regs. Bank 25: + miscRegs[25].resize(8); + + //Cop-0 Regs. Bank 26: + miscRegs[26].resize(1); + + //Cop-0 Regs. Bank 27: + miscRegs[27].resize(4); + + //Cop-0 Regs. Bank 28: + miscRegs[28].resize(8); + + //Cop-0 Regs. Bank 29: + miscRegs[29].resize(8); + + //Cop-0 Regs. Bank 30: + miscRegs[30].resize(1); + + //Cop-0 Regs. Bank 31: + miscRegs[31].resize(1); + +} + + const Addr MipsISA::PageShift = 13; const Addr MipsISA::PageBytes = ULL(1) << PageShift; const Addr MipsISA::PageMask = ~(PageBytes - 1); @@ -64,8 +314,8 @@ const Addr MipsISA::K1SegEnd = ULL(0xffffffffffffffff); #endif -// Mips UNOP (ldq_u r31,0(r0)) -const MachInst MipsISA::NoopMachInst = 0x2ffe0000; +// Mips UNOP (sll r0,r0,r0) +const MachInst MipsISA::NoopMachInst = 0x00000000; static inline Addr TruncPage(Addr addr) @@ -74,17 +324,19 @@ TruncPage(Addr addr) static inline Addr RoundPage(Addr addr) { return (addr + MipsISA::PageBytes - 1) & ~(MipsISA::PageBytes - 1); } + void RegFile::serialize(std::ostream &os) { SERIALIZE_ARRAY(intRegFile, NumIntRegs); SERIALIZE_ARRAY(floatRegFile.q, NumFloatRegs); - SERIALIZE_SCALAR(miscRegs.fpcr); - SERIALIZE_SCALAR(miscRegs.uniq); - SERIALIZE_SCALAR(miscRegs.lock_flag); - SERIALIZE_SCALAR(miscRegs.lock_addr); + //SERIALIZE_SCALAR(miscRegs.fpcr); + //SERIALIZE_SCALAR(miscRegs.uniq); + //SERIALIZE_SCALAR(miscRegs.lock_flag); + //SERIALIZE_SCALAR(miscRegs.lock_addr); SERIALIZE_SCALAR(pc); SERIALIZE_SCALAR(npc); + SERIALIZE_SCALAR(nnpc); #if FULL_SYSTEM SERIALIZE_ARRAY(palregs, NumIntRegs); SERIALIZE_ARRAY(ipr, NumInternalProcRegs); @@ -99,12 +351,13 @@ RegFile::unserialize(Checkpoint *cp, const std::string §ion) { UNSERIALIZE_ARRAY(intRegFile, NumIntRegs); UNSERIALIZE_ARRAY(floatRegFile.q, NumFloatRegs); - UNSERIALIZE_SCALAR(miscRegs.fpcr); - UNSERIALIZE_SCALAR(miscRegs.uniq); - UNSERIALIZE_SCALAR(miscRegs.lock_flag); - UNSERIALIZE_SCALAR(miscRegs.lock_addr); + //UNSERIALIZE_SCALAR(miscRegs.fpcr); + //UNSERIALIZE_SCALAR(miscRegs.uniq); + //UNSERIALIZE_SCALAR(miscRegs.lock_flag); + //UNSERIALIZE_SCALAR(miscRegs.lock_addr); UNSERIALIZE_SCALAR(pc); UNSERIALIZE_SCALAR(npc); + UNSERIALIZE_SCALAR(nnpc); #if FULL_SYSTEM UNSERIALIZE_ARRAY(palregs, NumIntRegs); UNSERIALIZE_ARRAY(ipr, NumInternalProcRegs); |