From: Ali Saidi <saidi@eecs.umich.edu>
Date: Wed, 27 Dec 2006 19:35:23 +0000 (-0500)
Subject: Compare legion and m5 tlbs for differences
X-Git-Tag: m5_2.0_beta3~224^2~27^2~1
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ff88f3b13ab03b1d6e8f371298843cd3b4d0b8cb;p=gem5.git

Compare legion and m5 tlbs for differences
Only print faults instructions that aren't traps or faulting loads

src/cpu/exetrace.cc:
    Compare the legion and m5 tlbs and printout any differences
    Only show differences if the instruction isn't a trap and isn't a memory
    operation that changes the trap level (a fault)
src/cpu/m5legion_interface.h:
    update the m5<->legion interface to add tlb data

--HG--
extra : convert_revision : 6963b64ca1012604e6b1d3c5e0e5f5282fd0164e
---

diff --git a/src/cpu/exetrace.cc b/src/cpu/exetrace.cc
index dc76ae189..352a11958 100644
--- a/src/cpu/exetrace.cc
+++ b/src/cpu/exetrace.cc
@@ -312,6 +312,7 @@ Trace::InstRecord::dump(ostream &outs)
         bool diffCanrestore = false;
         bool diffOtherwin = false;
         bool diffCleanwin = false;
+        bool diffTlb = false;
         Addr m5Pc, lgnPc;
 
 
@@ -395,16 +396,23 @@ Trace::InstRecord::dump(ostream &outs)
                     if(shared_data->cleanwin != thread->readMiscReg(MISCREG_CLEANWIN))
                         diffCleanwin = true;
 
+                    for (int i = 0; i < 64; i++) {
+                        if (shared_data->itb[i] !=  thread->getITBPtr()->TteRead(i))
+                                diffTlb = true;
+                        if (shared_data->dtb[i] !=  thread->getDTBPtr()->TteRead(i))
+                                diffTlb = true;
+                    }
+
                     if ((diffPC || diffCC || diffInst || diffRegs || diffTpc ||
                             diffTnpc || diffTstate || diffTt || diffHpstate ||
                             diffHtstate || diffHtba || diffPstate || diffY ||
                             diffCcr || diffTl || diffGl || diffAsi || diffPil ||
                             diffCwp || diffCansave || diffCanrestore ||
-                            diffOtherwin || diffCleanwin)
+                            diffOtherwin || diffCleanwin || diffTlb)
                         && !((staticInst->machInst & 0xC1F80000) == 0x81D00000)
-                        && !((staticInst->machInst & 0xC1F80000) == 0xC0580000)
-                        && !((staticInst->machInst & 0xC1F80000) == 0xC0000000)
-                        && !((staticInst->machInst & 0xC1F80000) == 0xC0700000)) {
+                        && !(((staticInst->machInst & 0xC0000000) == 0xC0000000)
+                            && shared_data->tl == thread->readMiscReg(MISCREG_TL) + 1)
+                       ) {
 
                         outs << "Differences found between M5 and Legion:";
                         if (diffPC)
@@ -453,6 +461,8 @@ Trace::InstRecord::dump(ostream &outs)
                             outs << " [Otherwin]";
                         if (diffCleanwin)
                             outs << " [Cleanwin]";
+                        if (diffTlb)
+                            outs << " [Tlb]";
                         outs << endl << endl;
 
                         outs << right << setfill(' ') << setw(15)
@@ -577,6 +587,22 @@ Trace::InstRecord::dump(ostream &outs)
                                     << endl;*/
                             }
                         }
+                        printColumnLabels(outs);
+                        char label[8];
+                        for (int x = 0; x < 64; x++) {
+                            if (shared_data->itb[x] !=  ULL(0xFFFFFFFFFFFFFFFF) ||
+                                thread->getITBPtr()->TteRead(x) != ULL(0xFFFFFFFFFFFFFFFF))  {
+                                    sprintf(label, "I-TLB:%02d", x);
+                                    printRegPair(outs, label, thread->getITBPtr()->TteRead(x), shared_data->itb[x]);
+                            }
+                        }
+                        for (int x = 0; x < 64; x++) {
+                            if (shared_data->dtb[x] !=  ULL(0xFFFFFFFFFFFFFFFF) ||
+                                thread->getDTBPtr()->TteRead(x) != ULL(0xFFFFFFFFFFFFFFFF))  {
+                                    sprintf(label, "D-TLB:%02d", x);
+                                    printRegPair(outs, label, thread->getDTBPtr()->TteRead(x), shared_data->dtb[x]);
+                            }
+                        }
                         thread->getITBPtr()->dumpAll();
                         thread->getDTBPtr()->dumpAll();
 
diff --git a/src/cpu/m5legion_interface.h b/src/cpu/m5legion_interface.h
index bfb88485a..c3ba5986e 100644
--- a/src/cpu/m5legion_interface.h
+++ b/src/cpu/m5legion_interface.h
@@ -30,7 +30,7 @@
 
 #include <unistd.h>
 
-#define VERSION         0xA1000006
+#define VERSION         0xA1000007
 #define OWN_M5          0x000000AA
 #define OWN_LEGION      0x00000055
 
@@ -72,6 +72,9 @@ typedef struct {
     uint8_t otherwin;
     uint8_t cleanwin;
 
+    uint64_t itb[64];
+    uint64_t dtb[64];
+
 } SharedData;
 
 /** !!! ^^^  Increment VERSION on change ^^^ !!! **/