arch-arm: Add initial support for SVE contiguous loads/stores
[gem5.git] / src / arch / sparc / tlb.cc
index 41b0f2043d8e2496ca63a36b4dc629ffef928820..8564c43996f681e0544a7d7488fb1d74dbd4eea1 100644 (file)
  * Authors: Ali Saidi
  */
 
+#include "arch/sparc/tlb.hh"
+
 #include <cstring>
 
 #include "arch/sparc/asi.hh"
+#include "arch/sparc/faults.hh"
+#include "arch/sparc/interrupts.hh"
 #include "arch/sparc/registers.hh"
-#include "arch/sparc/tlb.hh"
 #include "base/bitfield.hh"
+#include "base/compiler.hh"
 #include "base/trace.hh"
-#include "cpu/thread_context.hh"
 #include "cpu/base.hh"
+#include "cpu/thread_context.hh"
+#include "debug/IPR.hh"
+#include "debug/TLB.hh"
 #include "mem/packet_access.hh"
 #include "mem/request.hh"
+#include "sim/full_system.hh"
 #include "sim/system.hh"
 
 /* @todo remove some of the magic constants.  -- ali
@@ -47,7 +54,7 @@ namespace SparcISA {
 
 TLB::TLB(const Params *p)
     : BaseTLB(p), size(p->size), usedEntries(0), lastReplaced(0),
-      cacheValid(false)
+      cacheState(0), cacheValid(false)
 {
     // To make this work you'll have to change the hypervisor and OS
     if (size > 64)
@@ -130,21 +137,6 @@ TLB::insert(Addr va, int partition_id, int context_id, bool real,
         }
     }
 
-/*
-    i = lookupTable.find(tr);
-    if (i != lookupTable.end()) {
-        i->second->valid = false;
-        if (i->second->used) {
-            i->second->used = false;
-            usedEntries--;
-        }
-        freeList.push_front(i->second);
-        DPRINTF(TLB, "TLB: Found conflicting entry %#X , deleting it\n",
-                i->second);
-        lookupTable.erase(i);
-    }
-*/
-
     if (entry != -1) {
         assert(entry < size && entry >= 0);
         new_entry = &tlb[entry];
@@ -163,13 +155,6 @@ TLB::insert(Addr va, int partition_id, int context_id, bool real,
             lastReplaced = x;
             new_entry = &tlb[x];
         }
-        /*
-        for (x = 0; x < size; x++) {
-            if (!tlb[x].valid || !tlb[x].used)  {
-                new_entry = &tlb[x];
-                break;
-            }
-        }*/
     }
 
 insertAllLocked:
@@ -308,7 +293,7 @@ TLB::demapContext(int partition_id, int context_id)
     for (int x = 0; x < size; x++) {
         if (tlb[x].range.contextId == context_id &&
             tlb[x].range.partitionId == partition_id) {
-            if (tlb[x].valid == true) {
+            if (tlb[x].valid) {
                 freeList.push_front(&tlb[x]);
             }
             tlb[x].valid = false;
@@ -341,13 +326,13 @@ TLB::demapAll(int partition_id)
 }
 
 void
-TLB::invalidateAll()
+TLB::flushAll()
 {
     cacheValid = false;
     lookupTable.clear();
 
     for (int x = 0; x < size; x++) {
-        if (tlb[x].valid == true)
+        if (tlb[x].valid)
             freeList.push_back(&tlb[x]);
         tlb[x].valid = false;
         tlb[x].used = false;
@@ -431,14 +416,14 @@ TLB::writeSfsr(Addr a, bool write, ContextType ct,
 }
 
 Fault
-TLB::translateInst(RequestPtr req, ThreadContext *tc)
+TLB::translateInst(const RequestPtr &req, ThreadContext *tc)
 {
     uint64_t tlbdata = tc->readMiscRegNoEffect(MISCREG_TLB_DATA);
 
     Addr vaddr = req->getVaddr();
     TlbEntry *e;
 
-    assert(req->getAsi() == ASI_IMPLICIT);
+    assert(req->getArchFlags() == ASI_IMPLICIT);
 
     DPRINTF(TLB, "TLB: ITB Request to translate va=%#x size=%d\n",
             vaddr, req->getSize());
@@ -495,7 +480,7 @@ TLB::translateInst(RequestPtr req, ThreadContext *tc)
     // If the access is unaligned trap
     if (vaddr & 0x3) {
         writeSfsr(false, ct, false, OtherFault, asi);
-        return new MemAddressNotAligned;
+        return std::make_shared<MemAddressNotAligned>();
     }
 
     if (addr_mask)
@@ -503,7 +488,7 @@ TLB::translateInst(RequestPtr req, ThreadContext *tc)
 
     if (!validVirtualAddress(vaddr, addr_mask)) {
         writeSfsr(false, ct, false, VaOutOfRange, asi);
-        return new InstructionAccessException;
+        return std::make_shared<InstructionAccessException>();
     }
 
     if (!lsu_im) {
@@ -516,21 +501,22 @@ TLB::translateInst(RequestPtr req, ThreadContext *tc)
 
     if (e == NULL || !e->valid) {
         writeTagAccess(vaddr, context);
-        if (real)
-            return new InstructionRealTranslationMiss;
-        else
-#if FULL_SYSTEM
-            return new FastInstructionAccessMMUMiss;
-#else
-            return new FastInstructionAccessMMUMiss(req->getVaddr());
-#endif
+        if (real) {
+            return std::make_shared<InstructionRealTranslationMiss>();
+        } else {
+            if (FullSystem)
+                return std::make_shared<FastInstructionAccessMMUMiss>();
+            else
+                return std::make_shared<FastInstructionAccessMMUMiss>(
+                    req->getVaddr());
+        }
     }
 
     // were not priviledged accesing priv page
     if (!priv && e->pte.priv()) {
         writeTagAccess(vaddr, context);
         writeSfsr(false, ct, false, PrivViolation, asi);
-        return new InstructionAccessException;
+        return std::make_shared<InstructionAccessException>();
     }
 
     // cache translation date for next translation
@@ -544,7 +530,7 @@ TLB::translateInst(RequestPtr req, ThreadContext *tc)
 }
 
 Fault
-TLB::translateData(RequestPtr req, ThreadContext *tc, bool write)
+TLB::translateData(const RequestPtr &req, ThreadContext *tc, bool write)
 {
     /*
      * @todo this could really use some profiling and fixing to make
@@ -554,7 +540,7 @@ TLB::translateData(RequestPtr req, ThreadContext *tc, bool write)
     Addr vaddr = req->getVaddr();
     Addr size = req->getSize();
     ASI asi;
-    asi = (ASI)req->getAsi();
+    asi = (ASI)req->getArchFlags();
     bool implicit = false;
     bool hpriv = bits(tlbdata,0,0);
     bool unaligned = vaddr & (size - 1);
@@ -588,8 +574,10 @@ TLB::translateData(RequestPtr req, ThreadContext *tc, bool write)
                     ce_va < vaddr + size && ce_va + ce->range.size > vaddr &&
                     (!write || ce->pte.writable())) {
                     req->setPaddr(ce->pte.translate(vaddr));
-                    if (ce->pte.sideffect() || (ce->pte.paddr() >> 39) & 1)
-                        req->setFlags(Request::UNCACHEABLE);
+                    if (ce->pte.sideffect() || (ce->pte.paddr() >> 39) & 1) {
+                        req->setFlags(
+                            Request::UNCACHEABLE | Request::STRICT_ORDER);
+                    }
                     DPRINTF(TLB, "TLB: %#X -> %#X\n", vaddr, req->getPaddr());
                     return NoFault;
                 } // if matched
@@ -601,8 +589,10 @@ TLB::translateData(RequestPtr req, ThreadContext *tc, bool write)
                     ce_va < vaddr + size && ce_va + ce->range.size > vaddr &&
                     (!write || ce->pte.writable())) {
                     req->setPaddr(ce->pte.translate(vaddr));
-                    if (ce->pte.sideffect() || (ce->pte.paddr() >> 39) & 1)
-                        req->setFlags(Request::UNCACHEABLE);
+                    if (ce->pte.sideffect() || (ce->pte.paddr() >> 39) & 1) {
+                        req->setFlags(
+                            Request::UNCACHEABLE | Request::STRICT_ORDER);
+                    }
                     DPRINTF(TLB, "TLB: %#X -> %#X\n", vaddr, req->getPaddr());
                     return NoFault;
                 } // if matched
@@ -641,24 +631,24 @@ TLB::translateData(RequestPtr req, ThreadContext *tc, bool write)
         }
     } else {
         // We need to check for priv level/asi priv
-        if (!priv && !hpriv && !AsiIsUnPriv(asi)) {
+        if (!priv && !hpriv && !asiIsUnPriv(asi)) {
             // It appears that context should be Nucleus in these cases?
             writeSfsr(vaddr, write, Nucleus, false, IllegalAsi, asi);
-            return new PrivilegedAction;
+            return std::make_shared<PrivilegedAction>();
         }
 
-        if (!hpriv && AsiIsHPriv(asi)) {
+        if (!hpriv && asiIsHPriv(asi)) {
             writeSfsr(vaddr, write, Nucleus, false, IllegalAsi, asi);
-            return new DataAccessException;
+            return std::make_shared<DataAccessException>();
         }
 
-        if (AsiIsPrimary(asi)) {
+        if (asiIsPrimary(asi)) {
             context = pri_context;
             ct = Primary;
-        } else if (AsiIsSecondary(asi)) {
+        } else if (asiIsSecondary(asi)) {
             context = sec_context;
             ct = Secondary;
-        } else if (AsiIsNucleus(asi)) {
+        } else if (asiIsNucleus(asi)) {
             ct = Nucleus;
             context = 0;
         } else {  // ????
@@ -668,41 +658,41 @@ TLB::translateData(RequestPtr req, ThreadContext *tc, bool write)
     }
 
     if (!implicit && asi != ASI_P && asi != ASI_S) {
-        if (AsiIsLittle(asi))
+        if (asiIsLittle(asi))
             panic("Little Endian ASIs not supported\n");
 
         //XXX It's unclear from looking at the documentation how a no fault
-        //load differs from a regular one, other than what happens concerning
-        //nfo and e bits in the TTE
-//        if (AsiIsNoFault(asi))
+        // load differs from a regular one, other than what happens concerning
+        // nfo and e bits in the TTE
+//        if (asiIsNoFault(asi))
 //            panic("No Fault ASIs not supported\n");
 
-        if (AsiIsPartialStore(asi))
+        if (asiIsPartialStore(asi))
             panic("Partial Store ASIs not supported\n");
 
-        if (AsiIsCmt(asi))
+        if (asiIsCmt(asi))
             panic("Cmt ASI registers not implmented\n");
 
-        if (AsiIsInterrupt(asi))
+        if (asiIsInterrupt(asi))
             goto handleIntRegAccess;
-        if (AsiIsMmu(asi))
+        if (asiIsMmu(asi))
             goto handleMmuRegAccess;
-        if (AsiIsScratchPad(asi))
+        if (asiIsScratchPad(asi))
             goto handleScratchRegAccess;
-        if (AsiIsQueue(asi))
+        if (asiIsQueue(asi))
             goto handleQueueRegAccess;
-        if (AsiIsSparcError(asi))
+        if (asiIsSparcError(asi))
             goto handleSparcErrorRegAccess;
 
-        if (!AsiIsReal(asi) && !AsiIsNucleus(asi) && !AsiIsAsIfUser(asi) &&
-                !AsiIsTwin(asi) && !AsiIsBlock(asi) && !AsiIsNoFault(asi))
+        if (!asiIsReal(asi) && !asiIsNucleus(asi) && !asiIsAsIfUser(asi) &&
+                !asiIsTwin(asi) && !asiIsBlock(asi) && !asiIsNoFault(asi))
             panic("Accessing ASI %#X. Should we?\n", asi);
     }
 
     // If the asi is unaligned trap
     if (unaligned) {
         writeSfsr(vaddr, false, ct, false, OtherFault, asi);
-        return new MemAddressNotAligned;
+        return std::make_shared<MemAddressNotAligned>();
     }
 
     if (addr_mask)
@@ -710,15 +700,15 @@ TLB::translateData(RequestPtr req, ThreadContext *tc, bool write)
 
     if (!validVirtualAddress(vaddr, addr_mask)) {
         writeSfsr(vaddr, false, ct, true, VaOutOfRange, asi);
-        return new DataAccessException;
+        return std::make_shared<DataAccessException>();
     }
 
-    if ((!lsu_dm && !hpriv && !red) || AsiIsReal(asi)) {
+    if ((!lsu_dm && !hpriv && !red) || asiIsReal(asi)) {
         real = true;
         context = 0;
     }
 
-    if (hpriv && (implicit || (!AsiIsAsIfUser(asi) && !AsiIsReal(asi)))) {
+    if (hpriv && (implicit || (!asiIsAsIfUser(asi) && !asiIsReal(asi)))) {
         req->setPaddr(vaddr & PAddrImplMask);
         return NoFault;
     }
@@ -728,43 +718,44 @@ TLB::translateData(RequestPtr req, ThreadContext *tc, bool write)
     if (e == NULL || !e->valid) {
         writeTagAccess(vaddr, context);
         DPRINTF(TLB, "TLB: DTB Failed to find matching TLB entry\n");
-        if (real)
-            return new DataRealTranslationMiss;
-        else
-#if FULL_SYSTEM
-            return new FastDataAccessMMUMiss;
-#else
-            return new FastDataAccessMMUMiss(req->getVaddr());
-#endif
+        if (real) {
+            return std::make_shared<DataRealTranslationMiss>();
+        } else {
+            if (FullSystem)
+                return std::make_shared<FastDataAccessMMUMiss>();
+            else
+                return std::make_shared<FastDataAccessMMUMiss>(
+                    req->getVaddr());
+        }
 
     }
 
     if (!priv && e->pte.priv()) {
         writeTagAccess(vaddr, context);
         writeSfsr(vaddr, write, ct, e->pte.sideffect(), PrivViolation, asi);
-        return new DataAccessException;
+        return std::make_shared<DataAccessException>();
     }
 
     if (write && !e->pte.writable()) {
         writeTagAccess(vaddr, context);
         writeSfsr(vaddr, write, ct, e->pte.sideffect(), OtherFault, asi);
-        return new FastDataAccessProtection;
+        return std::make_shared<FastDataAccessProtection>();
     }
 
-    if (e->pte.nofault() && !AsiIsNoFault(asi)) {
+    if (e->pte.nofault() && !asiIsNoFault(asi)) {
         writeTagAccess(vaddr, context);
         writeSfsr(vaddr, write, ct, e->pte.sideffect(), LoadFromNfo, asi);
-        return new DataAccessException;
+        return std::make_shared<DataAccessException>();
     }
 
-    if (e->pte.sideffect() && AsiIsNoFault(asi)) {
+    if (e->pte.sideffect() && asiIsNoFault(asi)) {
         writeTagAccess(vaddr, context);
         writeSfsr(vaddr, write, ct, e->pte.sideffect(), SideEffect, asi);
-        return new DataAccessException;
+        return std::make_shared<DataAccessException>();
     }
 
     if (e->pte.sideffect() || (e->pte.paddr() >> 39) & 1)
-        req->setFlags(Request::UNCACHEABLE);
+        req->setFlags(Request::UNCACHEABLE | Request::STRICT_ORDER);
 
     // cache translation date for next translation
     cacheState = tlbdata;
@@ -791,15 +782,15 @@ handleIntRegAccess:
     if (!hpriv) {
         writeSfsr(vaddr, write, Primary, true, IllegalAsi, asi);
         if (priv)
-            return new DataAccessException;
+            return std::make_shared<DataAccessException>();
          else
-            return new PrivilegedAction;
+             return std::make_shared<PrivilegedAction>();
     }
 
     if ((asi == ASI_SWVR_UDB_INTR_W && !write) ||
         (asi == ASI_SWVR_UDB_INTR_R && write)) {
         writeSfsr(vaddr, write, Primary, true, IllegalAsi, asi);
-        return new DataAccessException;
+        return std::make_shared<DataAccessException>();
     }
 
     goto regAccessOk;
@@ -808,18 +799,18 @@ handleIntRegAccess:
 handleScratchRegAccess:
     if (vaddr > 0x38 || (vaddr >= 0x20 && vaddr < 0x30 && !hpriv)) {
         writeSfsr(vaddr, write, Primary, true, IllegalAsi, asi);
-        return new DataAccessException;
+        return std::make_shared<DataAccessException>();
     }
     goto regAccessOk;
 
 handleQueueRegAccess:
     if (!priv  && !hpriv) {
         writeSfsr(vaddr, write, Primary, true, IllegalAsi, asi);
-        return new PrivilegedAction;
+        return std::make_shared<PrivilegedAction>();
     }
     if ((!hpriv && vaddr & 0xF) || vaddr > 0x3f8 || vaddr < 0x3c0) {
         writeSfsr(vaddr, write, Primary, true, IllegalAsi, asi);
-        return new DataAccessException;
+        return std::make_shared<DataAccessException>();
     }
     goto regAccessOk;
 
@@ -827,9 +818,9 @@ handleSparcErrorRegAccess:
     if (!hpriv) {
         writeSfsr(vaddr, write, Primary, true, IllegalAsi, asi);
         if (priv)
-            return new DataAccessException;
+            return std::make_shared<DataAccessException>();
          else
-            return new PrivilegedAction;
+             return std::make_shared<PrivilegedAction>();
     }
     goto regAccessOk;
 
@@ -837,13 +828,13 @@ handleSparcErrorRegAccess:
 regAccessOk:
 handleMmuRegAccess:
     DPRINTF(TLB, "TLB: DTB Translating MM IPR access\n");
-    req->setFlags(Request::MMAPED_IPR);
+    req->setFlags(Request::MMAPPED_IPR);
     req->setPaddr(req->getVaddr());
     return NoFault;
 };
 
 Fault
-TLB::translateAtomic(RequestPtr req, ThreadContext *tc, Mode mode)
+TLB::translateAtomic(const RequestPtr &req, ThreadContext *tc, Mode mode)
 {
     if (mode == Execute)
         return translateInst(req, tc);
@@ -852,114 +843,119 @@ TLB::translateAtomic(RequestPtr req, ThreadContext *tc, Mode mode)
 }
 
 void
-TLB::translateTiming(RequestPtr req, ThreadContext *tc,
+TLB::translateTiming(const RequestPtr &req, ThreadContext *tc,
         Translation *translation, Mode mode)
 {
     assert(translation);
     translation->finish(translateAtomic(req, tc, mode), req, tc, mode);
 }
 
-#if FULL_SYSTEM
+Fault
+TLB::finalizePhysical(const RequestPtr &req,
+                      ThreadContext *tc, Mode mode) const
+{
+    return NoFault;
+}
 
-Tick
+Cycles
 TLB::doMmuRegRead(ThreadContext *tc, Packet *pkt)
 {
     Addr va = pkt->getAddr();
-    ASI asi = (ASI)pkt->req->getAsi();
+    ASI asi = (ASI)pkt->req->getArchFlags();
     uint64_t temp;
 
     DPRINTF(IPR, "Memory Mapped IPR Read: asi=%#X a=%#x\n",
-         (uint32_t)pkt->req->getAsi(), pkt->getAddr());
+         (uint32_t)pkt->req->getArchFlags(), pkt->getAddr());
 
-    TLB *itb = tc->getITBPtr();
+    TLB *itb = dynamic_cast<TLB *>(tc->getITBPtr());
 
     switch (asi) {
       case ASI_LSU_CONTROL_REG:
         assert(va == 0);
-        pkt->set(tc->readMiscReg(MISCREG_MMU_LSU_CTRL));
+        pkt->setBE(tc->readMiscReg(MISCREG_MMU_LSU_CTRL));
         break;
       case ASI_MMU:
         switch (va) {
           case 0x8:
-            pkt->set(tc->readMiscReg(MISCREG_MMU_P_CONTEXT));
+            pkt->setBE(tc->readMiscReg(MISCREG_MMU_P_CONTEXT));
             break;
           case 0x10:
-            pkt->set(tc->readMiscReg(MISCREG_MMU_S_CONTEXT));
+            pkt->setBE(tc->readMiscReg(MISCREG_MMU_S_CONTEXT));
             break;
           default:
             goto doMmuReadError;
         }
         break;
       case ASI_QUEUE:
-        pkt->set(tc->readMiscReg(MISCREG_QUEUE_CPU_MONDO_HEAD +
+        pkt->setBE(tc->readMiscReg(MISCREG_QUEUE_CPU_MONDO_HEAD +
                     (va >> 4) - 0x3c));
         break;
       case ASI_DMMU_CTXT_ZERO_TSB_BASE_PS0:
         assert(va == 0);
-        pkt->set(c0_tsb_ps0);
+        pkt->setBE(c0_tsb_ps0);
         break;
       case ASI_DMMU_CTXT_ZERO_TSB_BASE_PS1:
         assert(va == 0);
-        pkt->set(c0_tsb_ps1);
+        pkt->setBE(c0_tsb_ps1);
         break;
       case ASI_DMMU_CTXT_ZERO_CONFIG:
         assert(va == 0);
-        pkt->set(c0_config);
+        pkt->setBE(c0_config);
         break;
       case ASI_IMMU_CTXT_ZERO_TSB_BASE_PS0:
         assert(va == 0);
-        pkt->set(itb->c0_tsb_ps0);
+        pkt->setBE(itb->c0_tsb_ps0);
         break;
       case ASI_IMMU_CTXT_ZERO_TSB_BASE_PS1:
         assert(va == 0);
-        pkt->set(itb->c0_tsb_ps1);
+        pkt->setBE(itb->c0_tsb_ps1);
         break;
       case ASI_IMMU_CTXT_ZERO_CONFIG:
         assert(va == 0);
-        pkt->set(itb->c0_config);
+        pkt->setBE(itb->c0_config);
         break;
       case ASI_DMMU_CTXT_NONZERO_TSB_BASE_PS0:
         assert(va == 0);
-        pkt->set(cx_tsb_ps0);
+        pkt->setBE(cx_tsb_ps0);
         break;
       case ASI_DMMU_CTXT_NONZERO_TSB_BASE_PS1:
         assert(va == 0);
-        pkt->set(cx_tsb_ps1);
+        pkt->setBE(cx_tsb_ps1);
         break;
       case ASI_DMMU_CTXT_NONZERO_CONFIG:
         assert(va == 0);
-        pkt->set(cx_config);
+        pkt->setBE(cx_config);
         break;
       case ASI_IMMU_CTXT_NONZERO_TSB_BASE_PS0:
         assert(va == 0);
-        pkt->set(itb->cx_tsb_ps0);
+        pkt->setBE(itb->cx_tsb_ps0);
         break;
       case ASI_IMMU_CTXT_NONZERO_TSB_BASE_PS1:
         assert(va == 0);
-        pkt->set(itb->cx_tsb_ps1);
+        pkt->setBE(itb->cx_tsb_ps1);
         break;
       case ASI_IMMU_CTXT_NONZERO_CONFIG:
         assert(va == 0);
-        pkt->set(itb->cx_config);
+        pkt->setBE(itb->cx_config);
         break;
       case ASI_SPARC_ERROR_STATUS_REG:
-        pkt->set((uint64_t)0);
+        pkt->setBE((uint64_t)0);
         break;
       case ASI_HYP_SCRATCHPAD:
       case ASI_SCRATCHPAD:
-        pkt->set(tc->readMiscReg(MISCREG_SCRATCHPAD_R0 + (va >> 3)));
+        pkt->setBE(tc->readMiscReg(MISCREG_SCRATCHPAD_R0 + (va >> 3)));
         break;
       case ASI_IMMU:
         switch (va) {
           case 0x0:
             temp = itb->tag_access;
-            pkt->set(bits(temp,63,22) | bits(temp,12,0) << 48);
+            pkt->setBE(bits(temp,63,22) | bits(temp,12,0) << 48);
             break;
           case 0x18:
-            pkt->set(itb->sfsr);
+            pkt->setBE(itb->sfsr);
             break;
           case 0x30:
-            pkt->set(itb->tag_access);
+            pkt->setBE(itb->tag_access);
             break;
           default:
             goto doMmuReadError;
@@ -969,26 +965,26 @@ TLB::doMmuRegRead(ThreadContext *tc, Packet *pkt)
         switch (va) {
           case 0x0:
             temp = tag_access;
-            pkt->set(bits(temp,63,22) | bits(temp,12,0) << 48);
+            pkt->setBE(bits(temp,63,22) | bits(temp,12,0) << 48);
             break;
           case 0x18:
-            pkt->set(sfsr);
+            pkt->setBE(sfsr);
             break;
           case 0x20:
-            pkt->set(sfar);
+            pkt->setBE(sfar);
             break;
           case 0x30:
-            pkt->set(tag_access);
+            pkt->setBE(tag_access);
             break;
           case 0x80:
-            pkt->set(tc->readMiscReg(MISCREG_MMU_PART_ID));
+            pkt->setBE(tc->readMiscReg(MISCREG_MMU_PART_ID));
             break;
           default:
                 goto doMmuReadError;
         }
         break;
       case ASI_DMMU_TSB_PS0_PTR_REG:
-        pkt->set(MakeTsbPtr(Ps0,
+        pkt->setBE(MakeTsbPtr(Ps0,
             tag_access,
             c0_tsb_ps0,
             c0_config,
@@ -996,7 +992,7 @@ TLB::doMmuRegRead(ThreadContext *tc, Packet *pkt)
             cx_config));
         break;
       case ASI_DMMU_TSB_PS1_PTR_REG:
-        pkt->set(MakeTsbPtr(Ps1,
+        pkt->setBE(MakeTsbPtr(Ps1,
                 tag_access,
                 c0_tsb_ps1,
                 c0_config,
@@ -1004,7 +1000,7 @@ TLB::doMmuRegRead(ThreadContext *tc, Packet *pkt)
                 cx_config));
         break;
       case ASI_IMMU_TSB_PS0_PTR_REG:
-          pkt->set(MakeTsbPtr(Ps0,
+          pkt->setBE(MakeTsbPtr(Ps0,
                 itb->tag_access,
                 itb->c0_tsb_ps0,
                 itb->c0_config,
@@ -1012,7 +1008,7 @@ TLB::doMmuRegRead(ThreadContext *tc, Packet *pkt)
                 itb->cx_config));
         break;
       case ASI_IMMU_TSB_PS1_PTR_REG:
-          pkt->set(MakeTsbPtr(Ps1,
+          pkt->setBE(MakeTsbPtr(Ps1,
                 itb->tag_access,
                 itb->c0_tsb_ps1,
                 itb->c0_config,
@@ -1023,18 +1019,18 @@ TLB::doMmuRegRead(ThreadContext *tc, Packet *pkt)
         {
             SparcISA::Interrupts * interrupts =
                 dynamic_cast<SparcISA::Interrupts *>(
-                        tc->getCpuPtr()->getInterruptController());
-            pkt->set(interrupts->get_vec(IT_INT_VEC));
+                        tc->getCpuPtr()->getInterruptController(0));
+            pkt->setBE(interrupts->get_vec(IT_INT_VEC));
         }
         break;
       case ASI_SWVR_UDB_INTR_R:
         {
             SparcISA::Interrupts * interrupts =
                 dynamic_cast<SparcISA::Interrupts *>(
-                        tc->getCpuPtr()->getInterruptController());
+                        tc->getCpuPtr()->getInterruptController(0));
             temp = findMsbSet(interrupts->get_vec(IT_INT_VEC));
-            tc->getCpuPtr()->clearInterrupt(IT_INT_VEC, temp);
-            pkt->set(temp);
+            tc->getCpuPtr()->clearInterrupt(0, IT_INT_VEC, temp);
+            pkt->setBE(temp);
         }
         break;
       default:
@@ -1043,15 +1039,15 @@ doMmuReadError:
             (uint32_t)asi, va);
     }
     pkt->makeAtomicResponse();
-    return tc->getCpuPtr()->ticks(1);
+    return Cycles(1);
 }
 
-Tick
+Cycles
 TLB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
 {
-    uint64_t data = gtoh(pkt->get<uint64_t>());
+    uint64_t data = pkt->getBE<uint64_t>();
     Addr va = pkt->getAddr();
-    ASI asi = (ASI)pkt->req->getAsi();
+    ASI asi = (ASI)pkt->req->getArchFlags();
 
     Addr ta_insert;
     Addr va_insert;
@@ -1067,7 +1063,7 @@ TLB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
     DPRINTF(IPR, "Memory Mapped IPR Write: asi=%#X a=%#x d=%#X\n",
          (uint32_t)asi, va, data);
 
-    TLB *itb = tc->getITBPtr();
+    TLB *itb = dynamic_cast<TLB *>(tc->getITBPtr());
 
     switch (asi) {
       case ASI_LSU_CONTROL_REG:
@@ -1162,6 +1158,7 @@ TLB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
         break;
       case ASI_ITLB_DATA_ACCESS_REG:
         entry_insert = bits(va, 8,3);
+        M5_FALLTHROUGH;
       case ASI_ITLB_DATA_IN_REG:
         assert(entry_insert != -1 || mbits(va,10,9) == va);
         ta_insert = itb->tag_access;
@@ -1171,11 +1168,12 @@ TLB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
         real_insert = bits(va, 9,9);
         pte.populate(data, bits(va,10,10) ? PageTableEntry::sun4v :
                 PageTableEntry::sun4u);
-        tc->getITBPtr()->insert(va_insert, part_insert, ct_insert, real_insert,
-                pte, entry_insert);
+        itb->insert(va_insert, part_insert, ct_insert, real_insert,
+                    pte, entry_insert);
         break;
       case ASI_DTLB_DATA_ACCESS_REG:
         entry_insert = bits(va, 8,3);
+        M5_FALLTHROUGH;
       case ASI_DTLB_DATA_IN_REG:
         assert(entry_insert != -1 || mbits(va,10,9) == va);
         ta_insert = tag_access;
@@ -1206,18 +1204,17 @@ TLB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
             ignore = true;
         }
 
-        switch(bits(va,7,6)) {
+        switch (bits(va,7,6)) {
           case 0: // demap page
             if (!ignore)
-                tc->getITBPtr()->demapPage(mbits(va,63,13), part_id,
-                        bits(va,9,9), ctx_id);
+                itb->demapPage(mbits(va,63,13), part_id, bits(va,9,9), ctx_id);
             break;
-          case 1: //demap context
+          case 1: // demap context
             if (!ignore)
-                tc->getITBPtr()->demapContext(part_id, ctx_id);
+                itb->demapContext(part_id, ctx_id);
             break;
           case 2:
-            tc->getITBPtr()->demapAll(part_id);
+            itb->demapAll(part_id);
             break;
           default:
             panic("Invalid type for IMMU demap\n");
@@ -1257,12 +1254,12 @@ TLB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
             ignore = true;
         }
 
-        switch(bits(va,7,6)) {
+        switch (bits(va,7,6)) {
           case 0: // demap page
             if (!ignore)
                 demapPage(mbits(va,63,13), part_id, bits(va,9,9), ctx_id);
             break;
-          case 1: //demap context
+          case 1: // demap context
             if (!ignore)
                 demapContext(part_id, ctx_id);
             break;
@@ -1279,33 +1276,31 @@ TLB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
             // clear all the interrupts that aren't set in the write
             SparcISA::Interrupts * interrupts =
                 dynamic_cast<SparcISA::Interrupts *>(
-                        tc->getCpuPtr()->getInterruptController());
+                        tc->getCpuPtr()->getInterruptController(0));
             while (interrupts->get_vec(IT_INT_VEC) & data) {
                 msb = findMsbSet(interrupts->get_vec(IT_INT_VEC) & data);
-                tc->getCpuPtr()->clearInterrupt(IT_INT_VEC, msb);
+                tc->getCpuPtr()->clearInterrupt(0, IT_INT_VEC, msb);
             }
         }
         break;
       case ASI_SWVR_UDB_INTR_W:
             tc->getSystemPtr()->threadContexts[bits(data,12,8)]->getCpuPtr()->
-            postInterrupt(bits(data, 5, 0), 0);
+            postInterrupt(0, bits(data, 5, 0), 0);
         break;
       default:
 doMmuWriteError:
         panic("need to impl DTB::doMmuRegWrite() got asi=%#x, va=%#x d=%#x\n",
-            (uint32_t)pkt->req->getAsi(), pkt->getAddr(), data);
+            (uint32_t)pkt->req->getArchFlags(), pkt->getAddr(), data);
     }
     pkt->makeAtomicResponse();
-    return tc->getCpuPtr()->ticks(1);
+    return Cycles(1);
 }
 
-#endif
-
 void
 TLB::GetTsbPtr(ThreadContext *tc, Addr addr, int ctx, Addr *ptrs)
 {
     uint64_t tag_access = mbits(addr,63,13) | mbits(ctx,12,0);
-    TLB * itb = tc->getITBPtr();
+    TLB *itb = dynamic_cast<TLB *>(tc->getITBPtr());
     ptrs[0] = MakeTsbPtr(Ps0, tag_access,
                 c0_tsb_ps0,
                 c0_config,
@@ -1356,23 +1351,18 @@ TLB::MakeTsbPtr(TsbPageSize ps, uint64_t tag_access, uint64_t c0_tsb,
 }
 
 void
-TLB::serialize(std::ostream &os)
+TLB::serialize(CheckpointOut &cp) const
 {
     SERIALIZE_SCALAR(size);
     SERIALIZE_SCALAR(usedEntries);
     SERIALIZE_SCALAR(lastReplaced);
 
     // convert the pointer based free list into an index based one
-    int *free_list = (int*)malloc(sizeof(int) * size);
-    int cntr = 0;
-    std::list<TlbEntry*>::iterator i;
-    i = freeList.begin();
-    while (i != freeList.end()) {
-        free_list[cntr++] = ((size_t)*i - (size_t)tlb)/ sizeof(TlbEntry);
-        i++;
-    }
-    SERIALIZE_SCALAR(cntr);
-    SERIALIZE_ARRAY(free_list,  cntr);
+    std::vector<int> free_list;
+    for (const TlbEntry *entry : freeList)
+        free_list.push_back(entry - tlb);
+
+    SERIALIZE_CONTAINER(free_list);
 
     SERIALIZE_SCALAR(c0_tsb_ps0);
     SERIALIZE_SCALAR(c0_tsb_ps1);
@@ -1382,33 +1372,30 @@ TLB::serialize(std::ostream &os)
     SERIALIZE_SCALAR(cx_config);
     SERIALIZE_SCALAR(sfsr);
     SERIALIZE_SCALAR(tag_access);
+    SERIALIZE_SCALAR(sfar);
 
     for (int x = 0; x < size; x++) {
-        nameOut(os, csprintf("%s.PTE%d", name(), x));
-        tlb[x].serialize(os);
+        ScopedCheckpointSection sec(cp, csprintf("PTE%d", x));
+        tlb[x].serialize(cp);
     }
-    SERIALIZE_SCALAR(sfar);
 }
 
 void
-TLB::unserialize(Checkpoint *cp, const std::string &section)
+TLB::unserialize(CheckpointIn &cp)
 {
     int oldSize;
 
-    paramIn(cp, section, "size", oldSize);
+    paramIn(cp, "size", oldSize);
     if (oldSize != size)
         panic("Don't support unserializing different sized TLBs\n");
     UNSERIALIZE_SCALAR(usedEntries);
     UNSERIALIZE_SCALAR(lastReplaced);
 
-    int cntr;
-    UNSERIALIZE_SCALAR(cntr);
-
-    int *free_list = (int*)malloc(sizeof(int) * cntr);
+    std::vector<int> free_list;
+    UNSERIALIZE_CONTAINER(free_list);
     freeList.clear();
-    UNSERIALIZE_ARRAY(free_list,  cntr);
-    for (int x = 0; x < cntr; x++)
-        freeList.push_back(&tlb[free_list[x]]);
+    for (int idx : free_list)
+        freeList.push_back(&tlb[idx]);
 
     UNSERIALIZE_SCALAR(c0_tsb_ps0);
     UNSERIALIZE_SCALAR(c0_tsb_ps1);
@@ -1421,7 +1408,8 @@ TLB::unserialize(Checkpoint *cp, const std::string &section)
 
     lookupTable.clear();
     for (int x = 0; x < size; x++) {
-        tlb[x].unserialize(cp, csprintf("%s.PTE%d", section, x));
+        ScopedCheckpointSection sec(cp, csprintf("PTE%d", x));
+        tlb[x].unserialize(cp);
         if (tlb[x].valid)
             lookupTable.insert(tlb[x].range, &tlb[x]);
 
@@ -1429,7 +1417,7 @@ TLB::unserialize(Checkpoint *cp, const std::string &section)
     UNSERIALIZE_SCALAR(sfar);
 }
 
-/* end namespace SparcISA */ }
+} // namespace SparcISA
 
 SparcISA::TLB *
 SparcTLBParams::create()