From 867a9b84d9d633bed17a8880f84864840b923dfd Mon Sep 17 00:00:00 2001
From: Erik Hallnor <ehallnor@umich.edu>
Date: Sun, 17 Oct 2004 00:07:21 -0400
Subject: [PATCH] Bunch of little changes for tracking copies and getting OPT
 right.

cpu/simple_cpu/simple_cpu.cc:
    Send Copy
cpu/trace/opt_cpu.cc:
    Calculate the block size correctly. Set lookupTable value directly, since the old way only worked for FA caches.
cpu/trace/trace_cpu.cc:
    Don't start events if the hierarchy is in non-event mode.

--HG--
extra : convert_revision : daf2db5ed7428c2fb08652cf76f6fe99d8357db5
---
 cpu/simple_cpu/simple_cpu.cc |  9 +++++++++
 cpu/trace/opt_cpu.cc         | 19 +++++++++++++++----
 cpu/trace/trace_cpu.cc       | 23 +++++++++++++++++------
 3 files changed, 41 insertions(+), 10 deletions(-)

diff --git a/cpu/simple_cpu/simple_cpu.cc b/cpu/simple_cpu/simple_cpu.cc
index 0b45d2b9d..d25f80c6d 100644
--- a/cpu/simple_cpu/simple_cpu.cc
+++ b/cpu/simple_cpu/simple_cpu.cc
@@ -400,6 +400,15 @@ SimpleCPU::copy(Addr dest)
         xc->mem->read(memReq, data);
         memReq->paddr = dest_addr;
         xc->mem->write(memReq, data);
+        if (dcacheInterface) {
+            memReq->cmd = Copy;
+            memReq->completionEvent = NULL;
+            memReq->paddr = xc->copySrcPhysAddr;
+            memReq->dest = dest_addr;
+            memReq->size = 64;
+            memReq->time = curTick;
+            dcacheInterface->access(memReq);
+        }
     }
     return fault;
 }
diff --git a/cpu/trace/opt_cpu.cc b/cpu/trace/opt_cpu.cc
index 291525c1d..df4197e26 100644
--- a/cpu/trace/opt_cpu.cc
+++ b/cpu/trace/opt_cpu.cc
@@ -52,7 +52,13 @@ OptCPU::OptCPU(const string &name,
       numBlks(cache_size/block_size), assoc(_assoc), numSets(numBlks/assoc),
       setMask(numSets - 1)
 {
-    int log_block_size = (int)(log((double) block_size)/log(2.0));
+    int log_block_size = 0;
+    int tmp_block_size = block_size;
+    while (tmp_block_size > 1) {
+        ++log_block_size;
+        tmp_block_size = tmp_block_size >> 1;
+    }
+    assert(1<<log_block_size == block_size);
     MemReqPtr req;
     trace->getNextReq(req);
     refInfo.resize(numSets);
@@ -124,7 +130,7 @@ OptCPU::processSet(int set)
     for (int start = assoc/2; start >= 0; --start) {
         heapify(set,start);
     }
-    verifyHeap(set,0);
+    //verifyHeap(set,0);
 
     for (; i < refInfo[set].size(); ++i) {
         RefIndex cache_index = lookupValue(refInfo[set][i].addr);
@@ -134,8 +140,11 @@ OptCPU::processSet(int set)
             // replace from cacheHeap[0]
             // mark replaced block as absent
             setValue(refInfo[set][cacheHeap[0]].addr, -1);
+            setValue(refInfo[set][i].addr, 0);
             cacheHeap[0] = i;
             heapify(set, 0);
+            // Make sure its in the cache
+            assert(lookupValue(refInfo[set][i].addr) != -1);
         } else {
             // hit
             hits++;
@@ -143,9 +152,11 @@ OptCPU::processSet(int set)
                    refInfo[set][i].addr);
             assert(refInfo[set][cacheHeap[cache_index]].nextRefTime == i);
             assert(heapLeft(cache_index) >= assoc);
+
+            cacheHeap[cache_index] = i;
+            processRankIncrease(set, cache_index);
+            assert(lookupValue(refInfo[set][i].addr) != -1);
         }
-        cacheHeap[cache_index] = i;
-        processRankIncrease(set, cache_index);
     }
 }
 void
diff --git a/cpu/trace/trace_cpu.cc b/cpu/trace/trace_cpu.cc
index e19509fec..b69793a4b 100644
--- a/cpu/trace/trace_cpu.cc
+++ b/cpu/trace/trace_cpu.cc
@@ -75,9 +75,14 @@ TraceCPU::tick()
                 icacheInterface->squash(nextReq->asid);
             } else {
                 ++instReqs;
-                nextReq->completionEvent =
-                    new TraceCompleteEvent(nextReq, this);
-                icacheInterface->access(nextReq);
+                if (icacheInterface->doEvents()) {
+                    nextReq->completionEvent =
+                        new TraceCompleteEvent(nextReq, this);
+                    icacheInterface->access(nextReq);
+                } else {
+                    icacheInterface->access(nextReq);
+                    completeRequest(nextReq);
+                }
             }
         } else {
             if (dcacheInterface->isBlocked())
@@ -85,9 +90,15 @@ TraceCPU::tick()
 
             ++dataReqs;
             nextReq->time = curTick;
-            nextReq->completionEvent =
-                new TraceCompleteEvent(nextReq, this);
-            dcacheInterface->access(nextReq);
+            if (dcacheInterface->doEvents()) {
+                nextReq->completionEvent =
+                    new TraceCompleteEvent(nextReq, this);
+                dcacheInterface->access(nextReq);
+            } else {
+                dcacheInterface->access(nextReq);
+                completeRequest(nextReq);
+            }
+
         }
         nextCycle = dataTrace->getNextReq(nextReq);
     }
-- 
2.30.2