get legion/m5 to first tlb miss fault

src/arch/sparc/asi.cc:
src/arch/sparc/asi.hh:
    add sparc error asi
src/arch/sparc/faults.cc:
    put a panic in if TL == MaxTL
src/arch/sparc/isa/decoder.isa:
    Hpstate needs to be updated on a done too
src/arch/sparc/miscregfile.cc:
    warn istead of panicing of fprs/fsr accesses
src/arch/sparc/tlb.cc:
    add sparc error register code that just does nothing
    fix a couple of other tlb bugs
src/arch/sparc/ua2005.cc:
    fix implementation of HPSTATE  write
src/cpu/exetrace.cc:
    let exectrate mess up a couple of times before dying
src/python/m5/objects/T1000.py:
    add l2 error status register fake devices

--HG--
extra : convert_revision : ed5dfdfb28633bf36e5ae07d244f7510a02874ca

7 files changed, 161 insertions, 101 deletions

diff --git a/src/arch/sparc/asi.cc b/src/arch/sparc/asi.cc
index 49d3193eb..b307ade33 100644
--- a/src/arch/sparc/asi.cc
+++ b/src/arch/sparc/asi.cc
@@ -295,7 +295,13 @@ namespace SparcISA
 
     bool AsiIsReg(ASI asi)
     {
-        return AsiIsMmu(asi) || AsiIsScratchPad(asi);
+        return AsiIsMmu(asi) || AsiIsScratchPad(asi) | AsiIsSparcError(asi);
+    }
+
+    bool AsiIsSparcError(ASI asi)
+    {
+        return asi == ASI_SPARC_ERROR_EN_REG ||
+               asi == ASI_SPARC_ERROR_STATUS_REG;
     }
 
 }
diff --git a/src/arch/sparc/asi.hh b/src/arch/sparc/asi.hh
index 485f217ad..166c3867e 100644
--- a/src/arch/sparc/asi.hh
+++ b/src/arch/sparc/asi.hh
@@ -269,7 +269,7 @@ namespace SparcISA
     bool AsiIsHPriv(ASI);
     bool AsiIsReg(ASI);
     bool AsiIsInterrupt(ASI);
-
+    bool AsiIsSparcError(ASI);
 };
 
 #endif // __ARCH_SPARC_ASI_HH__
diff --git a/src/arch/sparc/faults.cc b/src/arch/sparc/faults.cc
index 9a29f24d5..78b2b4b76 100644
--- a/src/arch/sparc/faults.cc
+++ b/src/arch/sparc/faults.cc
@@ -528,7 +528,7 @@ void getPrivVector(ThreadContext * tc, Addr & PC, Addr & NPC, MiscReg TT, MiscRe
 
 void SparcFaultBase::invoke(ThreadContext * tc)
 {
-    panic("Invoking a second fault!\n");
+    //panic("Invoking a second fault!\n");
     FaultBase::invoke(tc);
     countStat()++;
 
@@ -561,6 +561,7 @@ void SparcFaultBase::invoke(ThreadContext * tc)
     }
     else if(TL == MaxTL)
     {
+        panic("Should go to error state here.. crap\n");
         //Do error_state somehow?
         //Probably inject a WDR fault using the interrupt mechanism.
         //What should the PC and NPC be set to?
diff --git a/src/arch/sparc/isa/decoder.isa b/src/arch/sparc/isa/decoder.isa
index a355816ac..b893797b0 100644
--- a/src/arch/sparc/isa/decoder.isa
+++ b/src/arch/sparc/isa/decoder.isa
@@ -1004,6 +1004,7 @@ decode OP default Unknown::unknown()
                     Asi = Tstate<31:24>;
                     Ccr = Tstate<39:32>;
                     Gl = Tstate<42:40>;
+                    Hpstate = Htstate;
                     NPC = Tnpc;
                     NNPC = Tnpc + 4;
                     Tl = Tl - 1;
diff --git a/src/arch/sparc/miscregfile.cc b/src/arch/sparc/miscregfile.cc
index 47b4771d9..48abad32a 100644
--- a/src/arch/sparc/miscregfile.cc
+++ b/src/arch/sparc/miscregfile.cc
@@ -305,13 +305,15 @@ MiscReg MiscRegFile::readRegWithEffect(int miscReg, ThreadContext * tc)
         return mbits(tc->getCpuPtr()->instCount() - (tick &
                     mask(63)),62,2) | mbits(tick,63,63) ;
       case MISCREG_FPRS:
-        panic("FPU not implemented\n");
+        warn("FPRS register read and FPU stuff not really implemented\n");
+        return fprs;
       case MISCREG_PCR:
       case MISCREG_PIC:
         panic("Performance Instrumentation not impl\n");
         /** Floating Point Status Register */
       case MISCREG_FSR:
-        panic("Floating Point not implemented\n");
+        warn("Reading FSR Floating Point not implemented\n");
+        break;
       case MISCREG_SOFTINT_CLR:
       case MISCREG_SOFTINT_SET:
         panic("Can read from softint clr/set\n");
@@ -356,6 +358,7 @@ void MiscRegFile::setReg(int miscReg, const MiscReg &val)
         asi = val;
         break;
       case MISCREG_FPRS:
+        warn("FPU not really implemented writing %#X to FPRS\n", val);
         fprs = val;
         break;
       case MISCREG_TICK:
diff --git a/src/arch/sparc/tlb.cc b/src/arch/sparc/tlb.cc
index 3ac3e5c9c..c05434797 100644
--- a/src/arch/sparc/tlb.cc
+++ b/src/arch/sparc/tlb.cc
@@ -328,6 +328,8 @@ ITB::translate(RequestPtr &req, ThreadContext *tc)
 
     DPRINTF(TLB, "TLB: ITB Request to translate va=%#x size=%d\n",
             vaddr, req->getSize());
+    DPRINTF(TLB, "TLB: pstate: %#X hpstate: %#X lsudm: %#X part_id: %#X\n",
+           pstate, hpstate, lsuIm, part_id);
 
     assert(req->getAsi() == ASI_IMPLICIT);
 
@@ -360,7 +362,7 @@ ITB::translate(RequestPtr &req, ThreadContext *tc)
         return new InstructionAccessException;
     }
 
-    if (lsuIm) {
+    if (!lsuIm) {
         e = lookup(req->getVaddr(), part_id, true);
         real = true;
         context = 0;
@@ -416,7 +418,8 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write)
     asi = (ASI)req->getAsi();
     DPRINTF(TLB, "TLB: DTB Request to translate va=%#x size=%d asi=%#x\n",
             vaddr, size, asi);
-
+    DPRINTF(TLB, "TLB: pstate: %#X hpstate: %#X lsudm: %#X part_id: %#X\n",
+           pstate, hpstate, lsuDm, part_id);
     if (asi == ASI_IMPLICIT)
         implicit = true;
 
@@ -489,6 +492,8 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write)
             goto handleScratchRegAccess;
         if (AsiIsQueue(asi))
             goto handleQueueRegAccess;
+        if (AsiIsSparcError(asi))
+            goto handleSparcErrorRegAccess;
 
         if (!AsiIsReal(asi) && !AsiIsNucleus(asi))
             panic("Accessing ASI %#X. Should we?\n", asi);
@@ -560,6 +565,19 @@ handleQueueRegAccess:
     }
     goto regAccessOk;
 
+handleSparcErrorRegAccess:
+    if (!hpriv) {
+        if (priv) {
+            writeSfr(tc, vaddr, write, Primary, true, IllegalAsi, asi);
+            return new DataAccessException;
+        } else {
+            writeSfr(tc, vaddr, write, Primary, true, IllegalAsi, asi);
+            return new PrivilegedAction;
+        }
+    }
+    goto regAccessOk;
+
+
 regAccessOk:
 handleMmuRegAccess:
     DPRINTF(TLB, "TLB: DTB Translating MM IPR access\n");
@@ -675,7 +693,7 @@ DTB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
     Addr va = pkt->getAddr();
     ASI asi = (ASI)pkt->req->getAsi();
 
-    DPRINTF(IPR, "Memory Mapped IPR Write: asi=#%X a=%#x d=%#X\n",
+    DPRINTF(IPR, "Memory Mapped IPR Write: asi=%#X a=%#x d=%#X\n",
          (uint32_t)asi, va, data);
 
     switch (asi) {
@@ -696,7 +714,7 @@ DTB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
         }
         break;
       case ASI_QUEUE:
-        assert(mbits(va,13,6) == va);
+        assert(mbits(data,13,6) == data);
         tc->setMiscRegWithEffect(MISCREG_QUEUE_CPU_MONDO_HEAD +
                     (va >> 4) - 0x3c, data);
         break;
@@ -748,6 +766,10 @@ DTB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
         assert(va == 0);
         tc->setMiscRegWithEffect(MISCREG_MMU_ITLB_CX_CONFIG, data);
         break;
+      case ASI_SPARC_ERROR_EN_REG:
+      case ASI_SPARC_ERROR_STATUS_REG:
+        warn("Ignoring write to SPARC ERROR regsiter\n");
+        break;
       case ASI_HYP_SCRATCHPAD:
       case ASI_SCRATCHPAD:
         tc->setMiscRegWithEffect(MISCREG_SCRATCHPAD_R0 + (va >> 3), data);
diff --git a/src/arch/sparc/ua2005.cc b/src/arch/sparc/ua2005.cc
index 32bc2a44b..2bc8981ac 100644
--- a/src/arch/sparc/ua2005.cc
+++ b/src/arch/sparc/ua2005.cc
@@ -43,79 +43,99 @@ MiscRegFile::setFSRegWithEffect(int miscReg, const MiscReg &val,
     int64_t time;
     int oldLevel, newLevel;
     switch (miscReg) {
-        /* Full system only ASRs */
-        case MISCREG_SOFTINT:
-          // Check if we are going to interrupt because of something
-          oldLevel = InterruptLevel(softint);
-          newLevel = InterruptLevel(val);
-          setReg(miscReg, val);
-          if (newLevel > oldLevel)
-              ; // MUST DO SOMETHING HERE TO TELL CPU TO LOOK FOR INTERRUPTS XXX
-              //tc->getCpuPtr()->checkInterrupts = true;
-          panic("SOFTINT not implemented\n");
-          break;
-
-        case MISCREG_SOFTINT_CLR:
-          return setRegWithEffect(miscReg, ~val & softint, tc);
-        case MISCREG_SOFTINT_SET:
-          return setRegWithEffect(miscReg, val | softint, tc);
-
-        case MISCREG_TICK_CMPR:
-          if (tickCompare == NULL)
-              tickCompare = new TickCompareEvent(this, tc);
-          setReg(miscReg, val);
-          if ((tick_cmpr & mask(63)) && tickCompare->scheduled())
+      /* Full system only ASRs */
+      case MISCREG_SOFTINT:
+        // Check if we are going to interrupt because of something
+        oldLevel = InterruptLevel(softint);
+        newLevel = InterruptLevel(val);
+        setReg(miscReg, val);
+        //if (newLevel > oldLevel)
+            ; // MUST DO SOMETHING HERE TO TELL CPU TO LOOK FOR INTERRUPTS XXX
+            //tc->getCpuPtr()->checkInterrupts = true;
+        //panic("SOFTINT not implemented\n");
+        warn("Writing to softint not really supported, writing: %#x\n", val);
+        break;
+
+      case MISCREG_SOFTINT_CLR:
+        return setRegWithEffect(miscReg, ~val & softint, tc);
+      case MISCREG_SOFTINT_SET:
+        return setRegWithEffect(miscReg, val | softint, tc);
+
+      case MISCREG_TICK_CMPR:
+        if (tickCompare == NULL)
+            tickCompare = new TickCompareEvent(this, tc);
+        setReg(miscReg, val);
+        if ((tick_cmpr & mask(63)) && tickCompare->scheduled())
                   tickCompare->deschedule();
-          time = (tick_cmpr & mask(63)) - (tick & mask(63));
-          if (!(tick_cmpr & ~mask(63)) && time > 0)
-              tickCompare->schedule(time * tc->getCpuPtr()->cycles(1));
-          break;
-
-        case MISCREG_STICK_CMPR:
-          if (sTickCompare == NULL)
-              sTickCompare = new STickCompareEvent(this, tc);
-          setReg(miscReg, val);
-          if ((stick_cmpr & mask(63)) && sTickCompare->scheduled())
-                  sTickCompare->deschedule();
-          time = (stick_cmpr & mask(63)) - (stick & mask(63));
-          if (!(stick_cmpr & ~mask(63)) && time > 0)
-              sTickCompare->schedule(time * tc->getCpuPtr()->cycles(1));
-          break;
-
-        case MISCREG_PIL:
-          setReg(miscReg, val);
-          //tc->getCpuPtr()->checkInterrupts;
-          // MUST DO SOMETHING HERE TO TELL CPU TO LOOK FOR INTERRUPTS XXX
-          panic("PIL not implemented\n");
-          break;
-
-        case MISCREG_HVER:
-          panic("Shouldn't be writing HVER\n");
-
-        case MISCREG_HTBA:
-          // clear lower 7 bits on writes.
-          setReg(miscReg, val & ULL(~0x7FFF));
-          break;
-
-        case MISCREG_HSTICK_CMPR:
-          if (hSTickCompare == NULL)
-              hSTickCompare = new HSTickCompareEvent(this, tc);
-          setReg(miscReg, val);
-          if ((hstick_cmpr & mask(63)) && hSTickCompare->scheduled())
-                  hSTickCompare->deschedule();
-          time = (hstick_cmpr & mask(63)) - (stick & mask(63));
-          if (!(hstick_cmpr & ~mask(63)) && time > 0)
-              hSTickCompare->schedule(time * tc->getCpuPtr()->cycles(1));
-          break;
-
-        case MISCREG_HPSTATE:
-        case MISCREG_HTSTATE:
-        case MISCREG_STRAND_STS_REG:
-          setReg(miscReg, val);
-          break;
-
-        default:
-          panic("Invalid write to FS misc register\n");
+        time = (tick_cmpr & mask(63)) - (tick & mask(63));
+        if (!(tick_cmpr & ~mask(63)) && time > 0)
+            tickCompare->schedule(time * tc->getCpuPtr()->cycles(1));
+        warn ("writing to TICK compare register %#X\n", val);
+        break;
+
+      case MISCREG_STICK_CMPR:
+        if (sTickCompare == NULL)
+            sTickCompare = new STickCompareEvent(this, tc);
+        setReg(miscReg, val);
+        if ((stick_cmpr & mask(63)) && sTickCompare->scheduled())
+                sTickCompare->deschedule();
+        time = (stick_cmpr & mask(63)) - (stick & mask(63));
+        if (!(stick_cmpr & ~mask(63)) && time > 0)
+            sTickCompare->schedule(time * tc->getCpuPtr()->cycles(1));
+        warn ("writing to sTICK compare register value %#X\n", val);
+        break;
+
+      case MISCREG_PIL:
+        setReg(miscReg, val);
+        //tc->getCpuPtr()->checkInterrupts;
+        // MUST DO SOMETHING HERE TO TELL CPU TO LOOK FOR INTERRUPTS XXX
+        //  panic("PIL not implemented\n");
+        warn ("PIL not implemented writing %#X\n", val);
+        break;
+
+      case MISCREG_HVER:
+        panic("Shouldn't be writing HVER\n");
+
+      case MISCREG_HTBA:
+        // clear lower 7 bits on writes.
+        setReg(miscReg, val & ULL(~0x7FFF));
+        break;
+
+      case MISCREG_QUEUE_CPU_MONDO_HEAD:
+      case MISCREG_QUEUE_CPU_MONDO_TAIL:
+      case MISCREG_QUEUE_DEV_MONDO_HEAD:
+      case MISCREG_QUEUE_DEV_MONDO_TAIL:
+      case MISCREG_QUEUE_RES_ERROR_HEAD:
+      case MISCREG_QUEUE_RES_ERROR_TAIL:
+      case MISCREG_QUEUE_NRES_ERROR_HEAD:
+      case MISCREG_QUEUE_NRES_ERROR_TAIL:
+        setReg(miscReg, val);
+        tc->getCpuPtr()->checkInterrupts = true;
+        break;
+
+      case MISCREG_HSTICK_CMPR:
+        if (hSTickCompare == NULL)
+            hSTickCompare = new HSTickCompareEvent(this, tc);
+        setReg(miscReg, val);
+        if ((hstick_cmpr & mask(63)) && hSTickCompare->scheduled())
+                hSTickCompare->deschedule();
+        time = (hstick_cmpr & mask(63)) - (stick & mask(63));
+        if (!(hstick_cmpr & ~mask(63)) && time > 0)
+            hSTickCompare->schedule(time * tc->getCpuPtr()->cycles(1));
+        warn ("writing to hsTICK compare register value %#X\n", val);
+        break;
+
+      case MISCREG_HPSTATE:
+        // i.d. is always set on any hpstate write
+        setReg(miscReg, val | 1 << 11);
+        break;
+      case MISCREG_HTSTATE:
+      case MISCREG_STRAND_STS_REG:
+        setReg(miscReg, val);
+        break;
+
+      default:
+        panic("Invalid write to FS misc register\n");
     }
 }
 
@@ -123,26 +143,33 @@ MiscReg
 MiscRegFile::readFSRegWithEffect(int miscReg, ThreadContext * tc)
 {
     switch (miscReg) {
-
-        /* Privileged registers. */
-        case MISCREG_SOFTINT:
-        case MISCREG_TICK_CMPR:
-        case MISCREG_STICK_CMPR:
-        case MISCREG_PIL:
-        case MISCREG_HPSTATE:
-        case MISCREG_HINTP:
-        case MISCREG_HTSTATE:
-        case MISCREG_STRAND_STS_REG:
-        case MISCREG_HSTICK_CMPR:
-           return readReg(miscReg) ;
-
-        case MISCREG_HTBA:
-          return readReg(miscReg) & ULL(~0x7FFF);
-        case MISCREG_HVER:
-          return NWindows | MaxTL << 8 | MaxGL << 16;
-
-        default:
-          panic("Invalid read to FS misc register\n");
+      /* Privileged registers. */
+      case MISCREG_QUEUE_CPU_MONDO_HEAD:
+      case MISCREG_QUEUE_CPU_MONDO_TAIL:
+      case MISCREG_QUEUE_DEV_MONDO_HEAD:
+      case MISCREG_QUEUE_DEV_MONDO_TAIL:
+      case MISCREG_QUEUE_RES_ERROR_HEAD:
+      case MISCREG_QUEUE_RES_ERROR_TAIL:
+      case MISCREG_QUEUE_NRES_ERROR_HEAD:
+      case MISCREG_QUEUE_NRES_ERROR_TAIL:
+      case MISCREG_SOFTINT:
+      case MISCREG_TICK_CMPR:
+      case MISCREG_STICK_CMPR:
+      case MISCREG_PIL:
+      case MISCREG_HPSTATE:
+      case MISCREG_HINTP:
+      case MISCREG_HTSTATE:
+      case MISCREG_STRAND_STS_REG:
+      case MISCREG_HSTICK_CMPR:
+        return readReg(miscReg) ;
+
+      case MISCREG_HTBA:
+        return readReg(miscReg) & ULL(~0x7FFF);
+      case MISCREG_HVER:
+        return NWindows | MaxTL << 8 | MaxGL << 16;
+
+      default:
+        panic("Invalid read to FS misc register\n");
     }
 }
 /*