Merge Gabe's changes from head.

[gem5.git] / src / mem / cache / tags / iic.cc

diff --git a/src/mem/cache/tags/iic.cc b/src/mem/cache/tags/iic.cc
index 0fdfadd32a279197e576337edc39e24c3a760f97..2f95cdb0f05bdd7aef1ceccb0ba462132ce7c01c 100644 (file)
--- a/src/mem/cache/tags/iic.cc
+++ b/src/mem/cache/tags/iic.cc
@@ -42,7 +42,7 @@
 #include "mem/cache/base_cache.hh"
 #include "mem/cache/tags/iic.hh"
 #include "base/intmath.hh"
-#include "sim/root.hh" // for curTick
+#include "sim/core.hh" // for curTick
 
 #include "base/trace.hh" // for DPRINTF
 
@@ -284,65 +284,6 @@ IIC::findBlock(Addr addr, int &lat)
     return tag_ptr;
 }
 
-IICTag*
-IIC::findBlock(Packet * &pkt, int &lat)
-{
-    Addr addr = pkt->getAddr();
-
-    Addr tag = extractTag(addr);
-    unsigned set = hash(addr);
-    int set_lat;
-
-    unsigned long chain_ptr;
-
-    if (PROFILE_IIC)
-        setAccess.sample(set);
-
-    IICTag *tag_ptr = sets[set].findTag(tag, chain_ptr);
-    set_lat = 1;
-    if (tag_ptr == NULL && chain_ptr != tagNull) {
-        int secondary_depth;
-        tag_ptr = secondaryChain(tag, chain_ptr, &secondary_depth);
-        set_lat += secondary_depth;
-        // set depth for statistics fix this later!!! egh
-        sets[set].depth = set_lat;
-
-        if (tag_ptr != NULL) {
-            /* need to move tag into primary table */
-            // need to preserve chain: fix this egh
-            sets[set].tags[assoc-1]->chain_ptr = tag_ptr->chain_ptr;
-            tagSwap(tag_ptr - tagStore, sets[set].tags[assoc-1] - tagStore);
-            tag_ptr = sets[set].findTag(tag, chain_ptr);
-            assert(tag_ptr!=NULL);
-        }
-
-    }
-    set_lat = set_lat * hashDelay + hitLatency;
-    if (tag_ptr != NULL) {
-        // IIC replacement: if this is not the first element of
-        //   list, reorder
-        sets[set].moveToHead(tag_ptr);
-
-        hitHashDepth.sample(sets[set].depth);
-        hashHit++;
-        hitDepthTotal += sets[set].depth;
-        tag_ptr->status |= BlkReferenced;
-        lat = set_lat;
-        if (tag_ptr->whenReady > curTick && tag_ptr->whenReady - curTick > set_lat) {
-            lat = tag_ptr->whenReady - curTick;
-        }
-
-        tag_ptr->refCount += 1;
-    }
-    else {
-        // fall through: cache block not found, not a hit...
-        missHashDepth.sample(sets[set].depth);
-        hashMiss++;
-        missDepthTotal += sets[set].depth;
-        lat = set_lat;
-    }
-    return tag_ptr;
-}
 
 IICTag*
 IIC::findBlock(Addr addr) const
@@ -362,11 +303,10 @@ IIC::findBlock(Addr addr) const
 
 
 IICTag*
-IIC::findReplacement(Packet * &pkt, PacketList &writebacks,
-                     BlkList &compress_blocks)
+IIC::findReplacement(Addr addr, PacketList &writebacks)
 {
-    DPRINTF(IIC, "Finding Replacement for %x\n", pkt->getAddr());
-    unsigned set = hash(pkt->getAddr());
+    DPRINTF(IIC, "Finding Replacement for %x\n", addr);
+    unsigned set = hash(addr);
     IICTag *tag_ptr;
     unsigned long *tmp_data = new unsigned long[numSub];
 
@@ -391,12 +331,14 @@ IIC::findReplacement(Packet * &pkt, PacketList &writebacks,
 
     list<unsigned long> tag_indexes;
     repl->doAdvance(tag_indexes);
+/*
     while (!tag_indexes.empty()) {
         if (!tagStore[tag_indexes.front()].isCompressed()) {
             compress_blocks.push_back(&tagStore[tag_indexes.front()]);
         }
         tag_indexes.pop_front();
     }
+*/
 
     tag_ptr->re = (void*)repl->add(tag_ptr-tagStore);
 
@@ -414,7 +356,7 @@ IIC::freeReplacementBlock(PacketList & writebacks)
 
     DPRINTF(Cache, "Replacing %x in IIC: %s\n",
             regenerateBlkAddr(tag_ptr->tag,0),
-            tag_ptr->isModified() ? "writeback" : "clean");
+            tag_ptr->isDirty() ? "writeback" : "clean");
     /* write back replaced block data */
     if (tag_ptr && (tag_ptr->isValid())) {
         replacements[0]++;
@@ -422,8 +364,8 @@ IIC::freeReplacementBlock(PacketList & writebacks)
         ++sampledRefs;
         tag_ptr->refCount = 0;
 
-        if (tag_ptr->isModified()) {
-/*         Packet * writeback =
+        if (tag_ptr->isDirty()) {
+/*         PacketPtr writeback =
                 buildWritebackReq(regenerateBlkAddr(tag_ptr->tag, 0),
                                   tag_ptr->req->asid, tag_ptr->xc, blkSize,
                                   tag_ptr->data,
@@ -431,7 +373,8 @@ IIC::freeReplacementBlock(PacketList & writebacks)
 */
             Request *writebackReq = new Request(regenerateBlkAddr(tag_ptr->tag, 0),
                                            blkSize, 0);
-            Packet *writeback = new Packet(writebackReq, Packet::Writeback, -1);
+            PacketPtr writeback = new Packet(writebackReq, MemCmd::Writeback,
+                                             -1);
             writeback->allocate();
             memcpy(writeback->getPtr<uint8_t>(), tag_ptr->data, blkSize);
 
@@ -586,7 +529,7 @@ IIC::hash(Addr addr) const {
     tag = extractTag(addr);
     mask = hashSets-1; /* assumes iic_hash_size is a power of 2 */
     x = tag & mask;
-    y = (tag >> (int)(::log(hashSets)/::log(2))) & mask;
+    y = (tag >> (int)(::log((double)hashSets)/::log((double)2))) & mask;
     assert (x < hashSets && y < hashSets);
     return x ^ y;
 #endif
@@ -677,27 +620,8 @@ IIC::secondaryChain(Addr tag, unsigned long chain_ptr,
 }
 
 void
-IIC::decompressBlock(unsigned long index)
-{
-    IICTag *tag_ptr = &tagStore[index];
-    if (tag_ptr->isCompressed()) {
-        // decompress the data here.
-    }
-}
-
-void
-IIC::compressBlock(unsigned long index)
+IIC::invalidateBlk(IIC::BlkType *tag_ptr)
 {
-    IICTag *tag_ptr = &tagStore[index];
-    if (!tag_ptr->isCompressed()) {
-        // Compress the data here.
-    }
-}
-
-void
-IIC::invalidateBlk(Addr addr)
-{
-    IICTag* tag_ptr = findBlock(addr);
     if (tag_ptr) {
         for (int i = 0; i < tag_ptr->numData; ++i) {
             dataReferenceCount[tag_ptr->data_ptr[i]]--;
@@ -711,8 +635,8 @@ IIC::invalidateBlk(Addr addr)
 }
 
 void
-IIC::readData(IICTag *blk, uint8_t *data){
-//    assert(cache->doData());
+IIC::readData(IICTag *blk, uint8_t *data)
+{
     assert(blk->size <= trivialSize || blk->numData > 0);
     int data_size = blk->size;
     if (data_size > trivialSize) {
@@ -729,9 +653,8 @@ IIC::readData(IICTag *blk, uint8_t *data){
 
 void
 IIC::writeData(IICTag *blk, uint8_t *write_data, int size,
-               PacketList & writebacks){
-//    assert(cache->doData());
-    assert(size < blkSize || !blk->isCompressed());
+               PacketList & writebacks)
+{
     DPRINTF(IIC, "Writing %d bytes to %x\n", size,
             blk->tag<<tagShift);
     // Find the number of subblocks needed, (round up)