diff options
Diffstat (limited to 'src/arch/sparc')
-rw-r--r-- | src/arch/sparc/asi.cc | 27 | ||||
-rw-r--r-- | src/arch/sparc/faults.cc | 73 | ||||
-rw-r--r-- | src/arch/sparc/isa/decoder.isa | 96 | ||||
-rw-r--r-- | src/arch/sparc/isa/formats/mem/blockmem.isa | 6 | ||||
-rw-r--r-- | src/arch/sparc/isa/includes.isa | 3 | ||||
-rw-r--r-- | src/arch/sparc/regfile.cc | 6 | ||||
-rw-r--r-- | src/arch/sparc/tlb.cc | 102 | ||||
-rw-r--r-- | src/arch/sparc/tlb_map.hh | 13 | ||||
-rw-r--r-- | src/arch/sparc/ua2005.cc | 2 |
9 files changed, 173 insertions, 155 deletions
diff --git a/src/arch/sparc/asi.cc b/src/arch/sparc/asi.cc index a9a778ff6..3d553955f 100644 --- a/src/arch/sparc/asi.cc +++ b/src/arch/sparc/asi.cc @@ -179,26 +179,23 @@ namespace SparcISA (asi == ASI_LDTX_PL) || (asi == ASI_LDTX_SL) || (asi == ASI_BLK_PL) || - (asi == ASI_BLK_SL); + (asi == ASI_BLK_SL) || + (asi == ASI_LTX_L); } bool AsiIsTwin(ASI asi) { return - (asi == ASI_QUAD_LDD) || - (asi == ASI_LDTX_AIUP) || - (asi == ASI_LDTX_AIUS) || - (asi == ASI_LDTX_REAL) || - (asi == ASI_LDTX_N) || - (asi == ASI_LDTX_AIUP_L) || - (asi == ASI_LDTX_AIUS_L) || - (asi == ASI_LDTX_REAL_L) || - (asi == ASI_LDTX_NL) || - (asi == ASI_LDTX_P) || - (asi == ASI_LDTX_S) || - (asi == ASI_LDTX_PL) || - (asi == ASI_LDTX_SL) || - (asi == ASI_LTX_L); + (asi >= ASI_LDTX_AIUP && + asi <= ASI_LDTX_N && + asi != ASI_QUEUE) || + (asi >= ASI_LDTX_AIUP_L && + asi <= ASI_LDTX_NL && + asi != 0x2D) || + asi == ASI_LDTX_P || + asi == ASI_LDTX_S || + asi == ASI_LDTX_PL || + asi == ASI_LDTX_SL; } bool AsiIsPartialStore(ASI asi) diff --git a/src/arch/sparc/faults.cc b/src/arch/sparc/faults.cc index a74eebafa..825ff40f6 100644 --- a/src/arch/sparc/faults.cc +++ b/src/arch/sparc/faults.cc @@ -312,6 +312,11 @@ void doREDFault(ThreadContext *tc, TrapType tt) TL++; + if (bits(PSTATE, 3,3)) { + PC &= mask(32); + NPC &= mask(32); + } + //set TSTATE.gl to gl replaceBits(TSTATE, 42, 40, GL); //set TSTATE.ccr to ccr @@ -340,22 +345,8 @@ void doREDFault(ThreadContext *tc, TrapType tt) //Update GL tc->setMiscRegWithEffect(MISCREG_GL, min<int>(GL+1, MaxGL)); - //set PSTATE.mm to 00 - //set PSTATE.pef to 1 - PSTATE |= (1 << 4); - //set PSTATE.am to 0 - PSTATE &= ~(1 << 3); -/* //set PSTATE.priv to 0 - PSTATE &= ~(1 << 2);*/ - //set PSTATE.ie to 0 - //PSTATE.priv is set to 1 here. The manual says it should be 0, but - //Legion sets it to 1. - PSTATE |= (1 << 2); - //set PSTATE.cle to 0 - PSTATE &= ~(1 << 9); - //PSTATE.tle is unchanged - //XXX Where is the tct bit? - //set PSTATE.tct to 0 + PSTATE = mbits(PSTATE, 2, 2); // just save the priv bit + PSTATE |= (1 << 4); //set PSTATE.pef to 1 tc->setMiscReg(MISCREG_PSTATE, PSTATE); //set HPSTATE.red to 1 @@ -404,6 +395,11 @@ void doNormalFault(ThreadContext *tc, TrapType tt, bool gotoHpriv) MiscReg PC = tc->readPC(); MiscReg NPC = tc->readNextPC(); + if (bits(PSTATE, 3,3)) { + PC &= mask(32); + NPC &= mask(32); + } + //Increment the trap level TL++; tc->setMiscReg(MISCREG_TL, TL); @@ -442,46 +438,27 @@ void doNormalFault(ThreadContext *tc, TrapType tt, bool gotoHpriv) tc->setMiscRegWithEffect(MISCREG_GL, min<int>(GL+1, MaxGL)); //PSTATE.mm is unchanged - //PSTATE.pef = whether or not an fpu is present - //XXX We'll say there's one present, even though there aren't - //implementations for a decent number of the instructions - PSTATE |= (1 << 4); - //PSTATE.am = 0 - PSTATE &= ~(1 << 3); - if (!gotoHpriv) - { - //PSTATE.priv = 1 - PSTATE |= (1 << 2); - //PSTATE.cle = PSTATE.tle - replaceBits(PSTATE, 9, 9, PSTATE >> 8); - } - else - { - //PSTATE.priv = 0 - //PSTATE.priv is set to 1 here. The manual says it should be 0, but - //Legion sets it to 1. - PSTATE |= (1 << 2); - //PSTATE.cle = 0 - PSTATE &= ~(1 << 9); - } - //PSTATE.ie = 0 - PSTATE &= ~(1 << 1); + PSTATE |= (1 << 4); //PSTATE.pef = whether or not an fpu is present + PSTATE &= ~(1 << 3); //PSTATE.am = 0 + PSTATE &= ~(1 << 1); //PSTATE.ie = 0 //PSTATE.tle is unchanged //PSTATE.tct = 0 - //XXX Where exactly is this field? - tc->setMiscReg(MISCREG_PSTATE, PSTATE); if (gotoHpriv) { - //HPSTATE.red = 0 - HPSTATE &= ~(1 << 5); - //HPSTATE.hpriv = 1 - HPSTATE |= (1 << 2); - //HPSTATE.ibe = 0 - HPSTATE &= ~(1 << 10); + PSTATE &= ~(1 << 9); // PSTATE.cle = 0 + //The manual says PSTATE.priv should be 0, but Legion leaves it alone + HPSTATE &= ~(1 << 5); //HPSTATE.red = 0 + HPSTATE |= (1 << 2); //HPSTATE.hpriv = 1 + HPSTATE &= ~(1 << 10); //HPSTATE.ibe = 0 //HPSTATE.tlz is unchanged tc->setMiscReg(MISCREG_HPSTATE, HPSTATE); + } else { // we are going to priv + PSTATE |= (1 << 2); //PSTATE.priv = 1 + replaceBits(PSTATE, 9, 9, PSTATE >> 8); //PSTATE.cle = PSTATE.tle } + tc->setMiscReg(MISCREG_PSTATE, PSTATE); + bool changedCWP = true; if (tt == 0x24) diff --git a/src/arch/sparc/isa/decoder.isa b/src/arch/sparc/isa/decoder.isa index bd1a44342..425ebc9d0 100644 --- a/src/arch/sparc/isa/decoder.isa +++ b/src/arch/sparc/isa/decoder.isa @@ -163,7 +163,10 @@ decode OP default Unknown::unknown() 0x6: Trap::fbfcc({{fault = new FpDisabled;}}); } 0x1: BranchN::call(30, {{ - R15 = xc->readPC(); + if (Pstate<3:>) + R15 = (xc->readPC())<31:0>; + else + R15 = xc->readPC(); NNPC = R15 + disp; }}); 0x2: decode OP3 { @@ -183,7 +186,7 @@ decode OP default Unknown::unknown() Y = Rd<63:32>; }}); 0x0B: smul({{ - Rd.sdw = Rs1.sdw<31:0> * Rs2_or_imm13<31:0>; + Rd.sdw = sext<32>(Rs1.sdw) * sext<32>(Rs2_or_imm13); Y = Rd.sdw<63:32>; }}); 0x0C: subc({{Rd.sdw = Rs1.sdw + (~Rs2_or_imm13) + 1 - Ccr<0:0>}}); @@ -206,10 +209,10 @@ decode OP default Unknown::unknown() else { Rd.udw = ((int64_t)((Y << 32) | Rs1.sdw<31:0>)) / Rs2_or_imm13.sdw; - if(Rd.udw<63:31> != 0) + if((int64_t)Rd.udw >= std::numeric_limits<int32_t>::max()) Rd.udw = 0x7FFFFFFF; - else if(Rd.udw<63:> && Rd.udw<62:31> != 0xFFFFFFFF) - Rd.udw = 0xFFFFFFFF80000000ULL; + else if((int64_t)Rd.udw <= std::numeric_limits<int32_t>::min()) + Rd.udw = ULL(0xFFFFFFFF80000000); } }}); } @@ -254,7 +257,7 @@ decode OP default Unknown::unknown() {{0}},{{0}},{{0}},{{0}}); 0x1B: smulcc({{ int64_t resTemp; - Rd = resTemp = Rs1.sdw<31:0> * Rs2_or_imm13.sdw<31:0>; + Rd = resTemp = sext<32>(Rs1.sdw) * sext<32>(Rs2_or_imm13); Y = resTemp<63:32>;}}, {{0}},{{0}},{{0}},{{0}}); 0x1C: subccc({{ @@ -293,10 +296,10 @@ decode OP default Unknown::unknown() else { Rd = (int64_t)((Y << 32) | Rs1.sdw<31:0>) / val2; - overflow = (Rd<63:31> != 0); - underflow = (Rd<63:> && Rd<62:31> != 0xFFFFFFFF); + overflow = ((int64_t)Rd >= std::numeric_limits<int32_t>::max()); + underflow = ((int64_t)Rd <= std::numeric_limits<int32_t>::min()); if(overflow) Rd = 0x7FFFFFFF; - else if(underflow) Rd = 0xFFFFFFFF80000000ULL; + else if(underflow) Rd = ULL(0xFFFFFFFF80000000); } }}, {{0}}, {{overflow || underflow}}, @@ -373,7 +376,7 @@ decode OP default Unknown::unknown() 0x1: srax({{Rd = Rs1.sdw >> (I ? SHCNT64 : Rs2<5:0>);}}); } 0x28: decode RS1 { - 0x00: NoPriv::rdy({{Rd = Y;}}); + 0x00: NoPriv::rdy({{Rd = Y<31:0>;}}); //1 should cause an illegal instruction exception 0x02: NoPriv::rdccr({{Rd = Ccr;}}); 0x03: NoPriv::rdasi({{Rd = Asi;}}); @@ -468,12 +471,12 @@ decode OP default Unknown::unknown() //0x11-0x1F should cause an illegal instruction exception } 0x2B: BasicOperate::flushw({{ - if(NWindows - 2 - Cansave == 0) + if(NWindows - 2 - Cansave != 0) { if(Otherwin) - fault = new SpillNOther(Wstate<5:3>); + fault = new SpillNOther(4*Wstate<5:3>); else - fault = new SpillNNormal(Wstate<2:0>); + fault = new SpillNNormal(4*Wstate<2:0>); } }}); 0x2C: decode MOVCC3 @@ -523,7 +526,7 @@ decode OP default Unknown::unknown() 0x7: movrge({{Rd = (Rs1.sdw >= 0) ? Rs2_or_imm10 : Rd;}}); } 0x30: decode RD { - 0x00: NoPriv::wry({{Y = Rs1 ^ Rs2_or_imm13;}}); + 0x00: NoPriv::wry({{Y = (Rs1 ^ Rs2_or_imm13)<31:0>;}}); //0x01 should cause an illegal instruction exception 0x02: NoPriv::wrccr({{Ccr = Rs1 ^ Rs2_or_imm13;}}); 0x03: NoPriv::wrasi({{Asi = Rs1 ^ Rs2_or_imm13;}}); @@ -578,6 +581,9 @@ decode OP default Unknown::unknown() Cansave = Cansave - 1; else Otherwin = Otherwin - 1; + + if(Cleanwin < NWindows - 1) + Cleanwin = Cleanwin + 1; }}); } 0x32: decode RD { @@ -875,7 +881,10 @@ decode OP default Unknown::unknown() fault = new MemAddressNotAligned; else { - Rd = xc->readPC(); + if (Pstate<3:>) + Rd = (xc->readPC())<31:0>; + else + Rd = xc->readPC(); NNPC = target; } }}); @@ -893,9 +902,9 @@ decode OP default Unknown::unknown() if(Canrestore == 0) { if(Otherwin) - fault = new FillNOther(Wstate<5:3>); + fault = new FillNOther(4*Wstate<5:3>); else - fault = new FillNNormal(Wstate<2:0>); + fault = new FillNNormal(4*Wstate<2:0>); } else { @@ -949,9 +958,9 @@ decode OP default Unknown::unknown() if(Cansave == 0) { if(Otherwin) - fault = new SpillNOther(Wstate<5:3>); + fault = new SpillNOther(4*Wstate<5:3>); else - fault = new SpillNNormal(Wstate<2:0>); + fault = new SpillNNormal(4*Wstate<2:0>); //Cwp = (Cwp + 2) % NWindows; } else if(Cleanwin - Canrestore == 0) @@ -975,9 +984,9 @@ decode OP default Unknown::unknown() if(Canrestore == 0) { if(Otherwin) - fault = new FillNOther(Wstate<5:3>); + fault = new FillNOther(4*Wstate<5:3>); else - fault = new FillNNormal(Wstate<2:0>); + fault = new FillNNormal(4*Wstate<2:0>); } else { @@ -1049,39 +1058,49 @@ decode OP default Unknown::unknown() 0x0B: ldx({{Rd = (int64_t)Mem.sdw;}}); } 0x0D: LoadStore::ldstub( - {{Rd = Mem.ub;}}, - {{Mem.ub = 0xFF;}}); + {{uReg0 = Mem.ub;}}, + {{Rd.ub = uReg0; + Mem.ub = 0xFF;}}); 0x0E: Store::stx({{Mem.udw = Rd}}); 0x0F: LoadStore::swap( - {{uReg0 = Rd.uw; - Rd.uw = Mem.uw;}}, - {{Mem.uw = uReg0;}}); + {{ uReg0 = Mem.uw}}, + {{ Mem.uw = Rd.uw; + Rd.uw = uReg0;}}); format LoadAlt { 0x10: lduwa({{Rd = Mem.uw;}}, {{EXT_ASI}}); 0x11: lduba({{Rd = Mem.ub;}}, {{EXT_ASI}}); 0x12: lduha({{Rd = Mem.uhw;}}, {{EXT_ASI}}); 0x13: decode EXT_ASI { + //ASI_LDTD_AIUP + 0x22: TwinLoad::ldtx_aiup( + {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); + //ASI_LDTD_AIUS + 0x23: TwinLoad::ldtx_aius( + {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); //ASI_QUAD_LDD 0x24: TwinLoad::ldtx_quad_ldd( - {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}}); + {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); //ASI_LDTX_REAL 0x26: TwinLoad::ldtx_real( - {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}}); + {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); //ASI_LDTX_N 0x27: TwinLoad::ldtx_n( - {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}}); + {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); //ASI_LDTX_L 0x2C: TwinLoad::ldtx_l( - {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}}); + {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); //ASI_LDTX_REAL_L 0x2E: TwinLoad::ldtx_real_l( - {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}}); + {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); //ASI_LDTX_N_L 0x2F: TwinLoad::ldtx_n_l( - {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}}); + {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); //ASI_LDTX_P 0xE2: TwinLoad::ldtx_p( - {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}}); + {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); + //ASI_LDTX_S + 0xE3: TwinLoad::ldtx_s( + {{RdTwin.udw = Mem.udw;}}, {{EXT_ASI}}); default: ldtwa({{ uint64_t val = Mem.udw; RdLow = val<31:0>; @@ -1102,13 +1121,14 @@ decode OP default Unknown::unknown() 0x1B: ldxa({{Rd = (int64_t)Mem.sdw;}}, {{EXT_ASI}}); } 0x1D: LoadStoreAlt::ldstuba( - {{Rd = Mem.ub;}}, - {{Mem.ub = 0xFF}}, {{EXT_ASI}}); + {{uReg0 = Mem.ub;}}, + {{Rd.ub = uReg0; + Mem.ub = 0xFF;}}, {{EXT_ASI}}); 0x1E: StoreAlt::stxa({{Mem.udw = Rd}}, {{EXT_ASI}}); 0x1F: LoadStoreAlt::swapa( - {{uReg0 = Rd.uw; - Rd.uw = Mem.uw;}}, - {{Mem.uw = uReg0;}}, {{EXT_ASI}}); + {{ uReg0 = Mem.uw}}, + {{ Mem.uw = Rd.uw; + Rd.uw = uReg0;}}, {{EXT_ASI}}); format Trap { 0x20: Load::ldf({{Frd.uw = Mem.uw;}}); 0x21: decode X { diff --git a/src/arch/sparc/isa/formats/mem/blockmem.isa b/src/arch/sparc/isa/formats/mem/blockmem.isa index 32421a75f..c36fede2e 100644 --- a/src/arch/sparc/isa/formats/mem/blockmem.isa +++ b/src/arch/sparc/isa/formats/mem/blockmem.isa @@ -476,7 +476,6 @@ let {{ faultCode = '' return (header_output, decoder_output, exec_output, decode_block) - def doTwinLoadFormat(code, faultCode, name, Name, asi, opt_flags): addrCalcReg = 'EA = Rs1 + Rs2 + offset;' addrCalcImm = 'EA = Rs1 + imm + offset;' @@ -492,10 +491,11 @@ let {{ pcedCode = '' if (microPc == 1): flag_code = "flags[IsLastMicroOp] = true;" - pcedCode = matcher.sub("RdHigh", code) + pcedCode = "RdLow = uReg0;\n" + pcedCode += matcher.sub("RdHigh", code) else: flag_code = "flags[IsDelayedCommit] = true; flags[IsFirstMicroOp] = true;" - pcedCode = matcher.sub("RdLow", code) + pcedCode = matcher.sub("uReg0", code) iop = InstObjParams(name, Name, 'TwinMem', pcedCode, opt_flags, {"ea_code": addrCalcReg, "fault_check": faultCode, "micro_pc": microPc, diff --git a/src/arch/sparc/isa/includes.isa b/src/arch/sparc/isa/includes.isa index 624afb693..0c112d481 100644 --- a/src/arch/sparc/isa/includes.isa +++ b/src/arch/sparc/isa/includes.isa @@ -1,4 +1,4 @@ -// Copyright (c) 2006 The Regents of The University of Michigan +// Copyright (c) 2006-2007 The Regents of The University of Michigan // All rights reserved. // // Redistribution and use in source and binary forms, with or without @@ -63,6 +63,7 @@ output exec {{ #if defined(linux) #include <fenv.h> #endif +#include <limits> #include "arch/sparc/asi.hh" #include "cpu/base.hh" diff --git a/src/arch/sparc/regfile.cc b/src/arch/sparc/regfile.cc index 5d8ac6a17..b36133544 100644 --- a/src/arch/sparc/regfile.cc +++ b/src/arch/sparc/regfile.cc @@ -189,10 +189,10 @@ int SparcISA::InterruptLevel(uint64_t softint) if (softint & 0x10000 || softint & 0x1) return 14; - int level = 14; - while (level >= 0 && !(1 << (level + 1) & softint)) + int level = 15; + while (level > 0 && !(1 << level & softint)) level--; - if (1 << (level + 1) & softint) + if (1 << level & softint) return level; return 0; } diff --git a/src/arch/sparc/tlb.cc b/src/arch/sparc/tlb.cc index 612345300..bf57c894f 100644 --- a/src/arch/sparc/tlb.cc +++ b/src/arch/sparc/tlb.cc @@ -85,6 +85,7 @@ TLB::insert(Addr va, int partition_id, int context_id, bool real, int x; cacheValid = false; + va &= ~(PTE.size()-1); /* tr.va = va; tr.size = PTE.size() - 1; tr.contextId = context_id; @@ -169,8 +170,8 @@ insertAllLocked: freeList.remove(new_entry); if (new_entry->valid && new_entry->used) usedEntries--; - - lookupTable.erase(new_entry->range); + if (new_entry->valid) + lookupTable.erase(new_entry->range); DPRINTF(TLB, "Using entry: %#X\n", new_entry); @@ -414,6 +415,9 @@ TLB::writeSfsr(ThreadContext *tc, int reg, bool write, ContextType ct, void TLB::writeTagAccess(ThreadContext *tc, int reg, Addr va, int context) { + DPRINTF(TLB, "TLB: Writing Tag Access: va: %#X ctx: %#X value: %#X\n", + va, context, mbits(va, 63,13) | mbits(context,12,0)); + tc->setMiscRegWithEffect(reg, mbits(va, 63,13) | mbits(context,12,0)); } @@ -536,8 +540,7 @@ ITB::translate(RequestPtr &req, ThreadContext *tc) } if (e == NULL || !e->valid) { - tc->setMiscReg(MISCREG_MMU_ITLB_TAG_ACCESS, - vaddr & ~BytesInPageMask | context); + writeTagAccess(tc, vaddr, context); if (real) return new InstructionRealTranslationMiss; else @@ -546,6 +549,7 @@ ITB::translate(RequestPtr &req, ThreadContext *tc) // were not priviledged accesing priv page if (!priv && e->pte.priv()) { + writeTagAccess(tc, vaddr, context); writeSfsr(tc, false, ct, false, PrivViolation, asi); return new InstructionAccessException; } @@ -578,6 +582,9 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write) DPRINTF(TLB, "TLB: DTB Request to translate va=%#x size=%d asi=%#x\n", vaddr, size, asi); + if (lookupTable.size() != 64 - freeList.size()) + panic("Lookup table size: %d tlb size: %d\n", lookupTable.size(), + freeList.size()); if (asi == ASI_IMPLICIT) implicit = true; @@ -589,13 +596,15 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write) // Be fast if we can! if (cacheValid && cacheState == tlbdata) { if (cacheEntry[0] && cacheAsi[0] == asi && cacheEntry[0]->range.va < vaddr + size && - cacheEntry[0]->range.va + cacheEntry[0]->range.size > vaddr) { + cacheEntry[0]->range.va + cacheEntry[0]->range.size > vaddr && + (!write || cacheEntry[0]->pte.writable())) { req->setPaddr(cacheEntry[0]->pte.paddr() & ~(cacheEntry[0]->pte.size()-1) | vaddr & cacheEntry[0]->pte.size()-1 ); return NoFault; } if (cacheEntry[1] && cacheAsi[1] == asi && cacheEntry[1]->range.va < vaddr + size && - cacheEntry[1]->range.va + cacheEntry[1]->range.size > vaddr) { + cacheEntry[1]->range.va + cacheEntry[1]->range.size > vaddr && + (!write || cacheEntry[1]->pte.writable())) { req->setPaddr(cacheEntry[1]->pte.paddr() & ~(cacheEntry[1]->pte.size()-1) | vaddr & cacheEntry[1]->pte.size()-1 ); return NoFault; @@ -610,7 +619,7 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write) int part_id = bits(tlbdata,15,8); int tl = bits(tlbdata,18,16); int pri_context = bits(tlbdata,47,32); - int sec_context = bits(tlbdata,47,32); + int sec_context = bits(tlbdata,63,48); bool real = false; ContextType ct = Primary; @@ -631,48 +640,42 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write) ct = Primary; context = pri_context; } - } else if (!hpriv && !red) { - if (tl > 0 || AsiIsNucleus(asi)) { - ct = Nucleus; - context = 0; - } else if (AsiIsSecondary(asi)) { - ct = Secondary; - context = sec_context; - } else { - context = pri_context; - ct = Primary; //??? - } - + } else { // We need to check for priv level/asi priv - if (!priv && !AsiIsUnPriv(asi)) { + if (!priv && !hpriv && !AsiIsUnPriv(asi)) { // It appears that context should be Nucleus in these cases? writeSfr(tc, vaddr, write, Nucleus, false, IllegalAsi, asi); return new PrivilegedAction; } - if (priv && AsiIsHPriv(asi)) { + + if (!hpriv && AsiIsHPriv(asi)) { writeSfr(tc, vaddr, write, Nucleus, false, IllegalAsi, asi); return new DataAccessException; } - } - if (asi == ASI_P || asi == ASI_LDTX_P) { - ct = Primary; - context = pri_context; - goto continueDtbFlow; + if (AsiIsPrimary(asi)) { + context = pri_context; + ct = Primary; + } else if (AsiIsSecondary(asi)) { + context = sec_context; + ct = Secondary; + } else if (AsiIsNucleus(asi)) { + ct = Nucleus; + context = 0; + } else { // ???? + ct = Primary; + context = pri_context; + } } - if (!implicit) { + if (!implicit && asi != ASI_P && asi != ASI_S) { if (AsiIsLittle(asi)) panic("Little Endian ASIs not supported\n"); if (AsiIsBlock(asi)) panic("Block ASIs not supported\n"); if (AsiIsNoFault(asi)) panic("No Fault ASIs not supported\n"); - if (!write && (asi == ASI_QUAD_LDD || asi == ASI_LDTX_REAL)) - goto continueDtbFlow; - if (AsiIsTwin(asi)) - panic("Twin ASIs not supported\n"); if (AsiIsPartialStore(asi)) panic("Partial Store ASIs not supported\n"); if (AsiIsInterrupt(asi)) @@ -687,11 +690,11 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write) if (AsiIsSparcError(asi)) goto handleSparcErrorRegAccess; - if (!AsiIsReal(asi) && !AsiIsNucleus(asi)) + if (!AsiIsReal(asi) && !AsiIsNucleus(asi) && !AsiIsAsIfUser(asi) && + !AsiIsTwin(asi)) panic("Accessing ASI %#X. Should we?\n", asi); } -continueDtbFlow: // If the asi is unaligned trap if (vaddr & size-1) { writeSfr(tc, vaddr, false, ct, false, OtherFault, asi); @@ -707,7 +710,7 @@ continueDtbFlow: } - if ((!lsu_dm && !hpriv) || AsiIsReal(asi)) { + if ((!lsu_dm && !hpriv && !red) || AsiIsReal(asi)) { real = true; context = 0; }; @@ -720,8 +723,7 @@ continueDtbFlow: e = lookup(vaddr, part_id, real, context); if (e == NULL || !e->valid) { - tc->setMiscReg(MISCREG_MMU_DTLB_TAG_ACCESS, - vaddr & ~BytesInPageMask | context); + writeTagAccess(tc, vaddr, context); DPRINTF(TLB, "TLB: DTB Failed to find matching TLB entry\n"); if (real) return new DataRealTranslationMiss; @@ -730,26 +732,34 @@ continueDtbFlow: } + if (!priv && e->pte.priv()) { + writeTagAccess(tc, vaddr, context); + writeSfr(tc, vaddr, write, ct, e->pte.sideffect(), PrivViolation, asi); + return new DataAccessException; + } if (write && !e->pte.writable()) { + writeTagAccess(tc, vaddr, context); writeSfr(tc, vaddr, write, ct, e->pte.sideffect(), OtherFault, asi); return new FastDataAccessProtection; } if (e->pte.nofault() && !AsiIsNoFault(asi)) { + writeTagAccess(tc, vaddr, context); writeSfr(tc, vaddr, write, ct, e->pte.sideffect(), LoadFromNfo, asi); return new DataAccessException; } - if (e->pte.sideffect()) - req->setFlags(req->getFlags() | UNCACHEABLE); - - - if (!priv && e->pte.priv()) { - writeSfr(tc, vaddr, write, ct, e->pte.sideffect(), PrivViolation, asi); + if (e->pte.sideffect() && AsiIsNoFault(asi)) { + writeTagAccess(tc, vaddr, context); + writeSfr(tc, vaddr, write, ct, e->pte.sideffect(), SideEffect, asi); return new DataAccessException; } + + if (e->pte.sideffect()) + req->setFlags(req->getFlags() | UNCACHEABLE); + // cache translation date for next translation cacheState = tlbdata; if (!cacheValid) { @@ -893,7 +903,7 @@ DTB::doMmuRegRead(ThreadContext *tc, Packet *pkt) break; case ASI_SPARC_ERROR_STATUS_REG: warn("returning 0 for SPARC ERROR regsiter read\n"); - pkt->set(0); + pkt->set((uint64_t)0); break; case ASI_HYP_SCRATCHPAD: case ASI_SCRATCHPAD: @@ -963,7 +973,7 @@ DTB::doMmuRegRead(ThreadContext *tc, Packet *pkt) data = mbits(tsbtemp,63,13); if (bits(tsbtemp,12,12)) data |= ULL(1) << (13+bits(tsbtemp,3,0)); - data |= temp >> (9 + bits(cnftemp,2,0) * 3) & + data |= temp >> (9 + bits(cnftemp,10,8) * 3) & mbits((uint64_t)-1ll,12+bits(tsbtemp,3,0), 4); pkt->set(data); break; @@ -993,7 +1003,7 @@ DTB::doMmuRegRead(ThreadContext *tc, Packet *pkt) data = mbits(tsbtemp,63,13); if (bits(tsbtemp,12,12)) data |= ULL(1) << (13+bits(tsbtemp,3,0)); - data |= temp >> (9 + bits(cnftemp,2,0) * 3) & + data |= temp >> (9 + bits(cnftemp,10,8) * 3) & mbits((uint64_t)-1ll,12+bits(tsbtemp,3,0), 4); pkt->set(data); break; @@ -1112,6 +1122,7 @@ DTB::doMmuRegWrite(ThreadContext *tc, Packet *pkt) tc->setMiscRegWithEffect(MISCREG_MMU_ITLB_SFSR, data); break; case 0x30: + sext<59>(bits(data, 59,0)); tc->setMiscRegWithEffect(MISCREG_MMU_ITLB_TAG_ACCESS, data); break; default: @@ -1186,6 +1197,7 @@ DTB::doMmuRegWrite(ThreadContext *tc, Packet *pkt) tc->setMiscRegWithEffect(MISCREG_MMU_DTLB_SFSR, data); break; case 0x30: + sext<59>(bits(data, 59,0)); tc->setMiscRegWithEffect(MISCREG_MMU_DTLB_TAG_ACCESS, data); break; case 0x80: diff --git a/src/arch/sparc/tlb_map.hh b/src/arch/sparc/tlb_map.hh index 688daf5b9..8285db939 100644 --- a/src/arch/sparc/tlb_map.hh +++ b/src/arch/sparc/tlb_map.hh @@ -135,6 +135,19 @@ class TlbMap { return tree.empty(); } + + void print() + { + iterator i; + i = tree.begin(); + while (i != tree.end()) { + std::cout << std::hex << i->first.va << " " << i->first.size << " " << + i->first.contextId << " " << i->first.partitionId << " " << + i->first.real << " " << i->second << std::endl; + i++; + } + } + }; }; diff --git a/src/arch/sparc/ua2005.cc b/src/arch/sparc/ua2005.cc index b583da8b0..ecb63bb9a 100644 --- a/src/arch/sparc/ua2005.cc +++ b/src/arch/sparc/ua2005.cc @@ -43,8 +43,6 @@ MiscRegFile::setFSRegWithEffect(int miscReg, const MiscReg &val, /* Full system only ASRs */ case MISCREG_SOFTINT: setReg(miscReg, val);; - if (val != 0x10000 && val != 0) - warn("Writing to softint not really supported, writing: %#x\n", val); break; case MISCREG_SOFTINT_CLR: |