Merge zizzer.eecs.umich.edu:/bk/newmem

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

diff --git a/src/mem/cache/tags/lru.cc b/src/mem/cache/tags/lru.cc
index 976bbeff2a49713bf7ae89e9ac9f398f7b5187e7..8e87797744c5582294a29260f68650a2ab8bbb35 100644 (file)
--- a/src/mem/cache/tags/lru.cc
+++ b/src/mem/cache/tags/lru.cc
@@ -38,7 +38,7 @@
 #include "mem/cache/base_cache.hh"
 #include "base/intmath.hh"
 #include "mem/cache/tags/lru.hh"
-#include "sim/root.hh"
+#include "sim/core.hh"
 
 using namespace std;
 
@@ -183,27 +183,6 @@ LRU::findBlock(Addr addr, int &lat)
     return blk;
 }
 
-LRUBlk*
-LRU::findBlock(Packet * &pkt, int &lat)
-{
-    Addr addr = pkt->getAddr();
-
-    Addr tag = extractTag(addr);
-    unsigned set = extractSet(addr);
-    LRUBlk *blk = sets[set].findBlk(tag);
-    lat = hitLatency;
-    if (blk != NULL) {
-        // move this block to head of the MRU list
-        sets[set].moveToHead(blk);
-        if (blk->whenReady > curTick
-            && blk->whenReady - curTick > hitLatency) {
-            lat = blk->whenReady - curTick;
-        }
-        blk->refCount += 1;
-    }
-
-    return blk;
-}
 
 LRUBlk*
 LRU::findBlock(Addr addr) const
@@ -215,7 +194,7 @@ LRU::findBlock(Addr addr) const
 }
 
 LRUBlk*
-LRU::findReplacement(Packet * &pkt, PacketList &writebacks,
+LRU::findReplacement(PacketPtr &pkt, PacketList &writebacks,
                      BlkList &compress_blocks)
 {
     unsigned set = extractSet(pkt->getAddr());
@@ -240,61 +219,16 @@ LRU::findReplacement(Packet * &pkt, PacketList &writebacks,
 }
 
 void
-LRU::invalidateBlk(Addr addr)
+LRU::invalidateBlk(LRU::BlkType *blk)
 {
-    LRUBlk *blk = findBlock(addr);
     if (blk) {
         blk->status = 0;
         blk->isTouched = false;
+        blk->clearLoadLocks();
         tagsInUse--;
     }
 }
 
-void
-LRU::doCopy(Addr source, Addr dest, PacketList &writebacks)
-{
-    assert(source == blkAlign(source));
-    assert(dest == blkAlign(dest));
-    LRUBlk *source_blk = findBlock(source);
-    assert(source_blk);
-    LRUBlk *dest_blk = findBlock(dest);
-    if (dest_blk == NULL) {
-        // Need to do a replacement
-        Request *search = new Request(dest,1,0);
-        Packet * pkt = new Packet(search, Packet::ReadReq, -1);
-        BlkList dummy_list;
-        dest_blk = findReplacement(pkt, writebacks, dummy_list);
-        if (dest_blk->isValid() && dest_blk->isModified()) {
-            // Need to writeback data.
-/*         pkt = buildWritebackReq(regenerateBlkAddr(dest_blk->tag,
-                                                      dest_blk->set),
-                                    dest_blk->req->asid,
-                                    dest_blk->xc,
-                                    blkSize,
-                                    dest_blk->data,
-                                    dest_blk->size);
-*/
-            Request *writebackReq = new Request(regenerateBlkAddr(dest_blk->tag,
-                                                                  dest_blk->set),
-                                                blkSize, 0);
-            Packet *writeback = new Packet(writebackReq, Packet::Writeback, -1);
-            writeback->allocate();
-            memcpy(writeback->getPtr<uint8_t>(),dest_blk->data, blkSize);
-            writebacks.push_back(writeback);
-        }
-        dest_blk->tag = extractTag(dest);
-        delete search;
-        delete pkt;
-    }
-    /**
-     * @todo Can't assume the status once we have coherence on copies.
-     */
-
-    // Set this block as readable, writeable, and dirty.
-    dest_blk->status = 7;
-    memcpy(dest_blk->data, source_blk->data, blkSize);
-}
-
 void
 LRU::cleanupRefs()
 {