remove the totally obsolete split cache

12 files changed, 1 insertions, 2056 deletions

diff --git a/src/mem/cache/BaseCache.py b/src/mem/cache/BaseCache.py
index f6d42b1ef..936107b7f 100644
--- a/src/mem/cache/BaseCache.py
+++ b/src/mem/cache/BaseCache.py
@@ -38,8 +38,6 @@ class BaseCache(MemObject):
     block_size = Param.Int("block size in bytes")
     latency = Param.Latency("Latency")
     hash_delay = Param.Int(1, "time in cycles of hash access")
-    lifo = Param.Bool(False,
-        "whether this NIC partition should use LIFO repl. policy")
     max_miss_count = Param.Counter(0,
         "number of misses to handle before calling exit")
     mshrs = Param.Int("number of MSHRs (max outstanding requests)")
@@ -47,9 +45,6 @@ class BaseCache(MemObject):
         "always service demand misses first")
     repl = Param.Repl(NULL, "replacement policy")
     size = Param.MemorySize("capacity in bytes")
-    split = Param.Bool(False, "whether or not this cache is split")
-    split_size = Param.Int(0,
-        "How many ways of the cache belong to CPU/LRU partition")
     subblock_size = Param.Int(0,
         "Size of subblock in IIC used for compression")
     tgts_per_mshr = Param.Int("max number of accesses per MSHR")
diff --git a/src/mem/cache/builder.cc b/src/mem/cache/builder.cc
index 97930fe60..27daa4025 100644
--- a/src/mem/cache/builder.cc
+++ b/src/mem/cache/builder.cc
@@ -57,14 +57,6 @@
 #include "mem/cache/tags/iic.hh"
 #endif
 
-#if defined(USE_CACHE_SPLIT)
-#include "mem/cache/tags/split.hh"
-#endif
-
-#if defined(USE_CACHE_SPLIT_LIFO)
-#include "mem/cache/tags/split_lifo.hh"
-#endif
-
 //Prefetcher Headers
 #if defined(USE_GHB)
 #include "mem/cache/prefetch/ghb.hh"
@@ -122,26 +114,6 @@ using namespace TheISA;
 #define BUILD_LRU_CACHE BUILD_CACHE_PANIC("lru cache")
 #endif
 
-#if defined(USE_CACHE_SPLIT)
-#define BUILD_SPLIT_CACHE do {                                                \
-        Split *tags = new Split(numSets, block_size, assoc, split_size, lifo, \
-                                two_queue, latency);                          \
-        BUILD_CACHE(Split, tags);                                             \
-    } while (0)
-#else
-#define BUILD_SPLIT_CACHE BUILD_CACHE_PANIC("split cache")
-#endif
-
-#if defined(USE_CACHE_SPLIT_LIFO)
-#define BUILD_SPLIT_LIFO_CACHE do {                                     \
-        SplitLIFO *tags = new SplitLIFO(block_size, size, assoc,        \
-                                        latency, two_queue, -1);        \
-        BUILD_CACHE(SplitLIFO, tags);                                   \
-    } while (0)
-#else
-#define BUILD_SPLIT_LIFO_CACHE BUILD_CACHE_PANIC("lifo cache")
-#endif
-
 #if defined(USE_CACHE_IIC)
 #define BUILD_IIC_CACHE do {                            \
         IIC *tags = new IIC(iic_params);                \
@@ -156,13 +128,7 @@ using namespace TheISA;
             if (numSets == 1) {                         \
                 BUILD_FALRU_CACHE;                      \
             } else {                                    \
-                if (split == true) {                    \
-                    BUILD_SPLIT_CACHE;                  \
-                } else if (lifo == true) {              \
-                    BUILD_SPLIT_LIFO_CACHE;             \
-                } else {                                \
-                    BUILD_LRU_CACHE;                    \
-                }                                       \
+               BUILD_LRU_CACHE;                    \
             }                                           \
         } else {                                        \
             BUILD_IIC_CACHE;                            \
diff --git a/src/mem/cache/cache.cc b/src/mem/cache/cache.cc
index c640d4a60..d403535fc 100644
--- a/src/mem/cache/cache.cc
+++ b/src/mem/cache/cache.cc
@@ -50,14 +50,6 @@
 #include "mem/cache/tags/iic.hh"
 #endif
 
-#if defined(USE_CACHE_SPLIT)
-#include "mem/cache/tags/split.hh"
-#endif
-
-#if defined(USE_CACHE_SPLIT_LIFO)
-#include "mem/cache/tags/split_lifo.hh"
-#endif
-
 #include "mem/cache/cache_impl.hh"
 
 // Template Instantiations
@@ -76,12 +68,4 @@ template class Cache<IIC>;
 template class Cache<LRU>;
 #endif
 
-#if defined(USE_CACHE_SPLIT)
-template class Cache<Split>;
-#endif
-
-#if defined(USE_CACHE_SPLIT_LIFO)
-template class Cache<SplitLIFO>;
-#endif
-
 #endif //DOXYGEN_SHOULD_SKIP_THIS
diff --git a/src/mem/cache/tags/SConscript b/src/mem/cache/tags/SConscript
index 9153d97e7..7255e0b7e 100644
--- a/src/mem/cache/tags/SConscript
+++ b/src/mem/cache/tags/SConscript
@@ -34,13 +34,9 @@ Source('base.cc')
 Source('fa_lru.cc')
 Source('iic.cc')
 Source('lru.cc')
-Source('split.cc')
-Source('split_lifo.cc')
-Source('split_lru.cc')
 
 SimObject('iic_repl/Repl.py')
 Source('iic_repl/gen.cc')
 
 TraceFlag('IIC')
 TraceFlag('IICMore')
-TraceFlag('Split')
diff --git a/src/mem/cache/tags/split.cc b/src/mem/cache/tags/split.cc
deleted file mode 100644
index 5bed44bd3..000000000
--- a/src/mem/cache/tags/split.cc
+++ /dev/null
@@ -1,419 +0,0 @@
-/*
- * Copyright (c) 2004-2005 The Regents of The University of Michigan
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met: redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer;
- * redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution;
- * neither the name of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Authors: Lisa Hsu
- */
-
-/**
- * @file
- * Definitions of split cache tag store.
- */
-
-#include <string>
-#include <iostream>
-#include <fstream>
-
-#include "base/cprintf.hh"
-#include "base/intmath.hh"
-#include "base/output.hh"
-#include "base/trace.hh"
-#include "mem/cache/base.hh"
-#include "mem/cache/tags/split.hh"
-#include "mem/cache/tags/split_lifo.hh"
-#include "mem/cache/tags/split_lru.hh"
-
-
-using namespace std;
-using namespace TheISA;
-
-// create and initialize a partitioned cache structure
-Split::Split(int _numSets, int _blkSize, int total_ways, int LRU1_assoc,
-             bool _lifo, bool _two_queue, int _hit_latency) :
-    numSets(_numSets), blkSize(_blkSize), lifo(_lifo), hitLatency(_hit_latency)
-{
-    DPRINTF(Split, "new split cache!!\n");
-
-    DPRINTF(Split, "lru has %d numSets, %d blkSize, %d assoc, and %d hit_latency\n",
-            numSets, blkSize, LRU1_assoc, hitLatency);
-
-    lru = new SplitLRU(_numSets, _blkSize, LRU1_assoc, _hit_latency, 1);
-
-    if (total_ways - LRU1_assoc == 0) {
-        lifo_net = NULL;
-        lru_net = NULL;
-    } else {
-        if (lifo) {
-            DPRINTF(Split, "Other partition is a LIFO with size %d in bytes. it gets %d ways\n",
-                    (total_ways - LRU1_assoc)*_numSets*_blkSize, (total_ways - LRU1_assoc));
-            lifo_net = new SplitLIFO(_blkSize, (total_ways - LRU1_assoc)*_numSets*_blkSize,
-                                     (total_ways - LRU1_assoc), _hit_latency, _two_queue, 2);
-            lru_net = NULL;
-        }
-        else {
-            DPRINTF(Split, "other LRU gets %d ways\n", total_ways - LRU1_assoc);
-            lru_net = new SplitLRU(_numSets, _blkSize, total_ways - LRU1_assoc, _hit_latency, 2);
-            lifo_net = NULL;
-        }
-    }
-
-    blkMask = blkSize - 1;
-
-    if (!isPowerOf2(total_ways))
-        warn("total cache ways/columns %d should be power of 2",
-             total_ways);
-
-    warmedUp = false;
-    /** @todo Make warmup percentage a parameter. */
-    warmupBound = numSets * total_ways;
-
-}
-
-Split::~Split()
-{
-    delete lru;
-    if (lifo)
-        delete lifo_net;
-    else
-        delete lru_net;
-}
-
-void
-Split::regStats(const string &name)
-{
-    using namespace Stats;
-
-    BaseTags::regStats(name);
-
-    usedEvictDist.init(0,3000,40);
-    unusedEvictDist.init(0,3000,40);
-    useByCPUCycleDist.init(0,35,1);
-
-    nic_repl
-        .name(name + ".nic_repl")
-        .desc("number of replacements in the nic partition")
-        .precision(0)
-        ;
-
-    cpu_repl
-        .name(name + ".cpu_repl")
-        .desc("number of replacements in the cpu partition")
-        .precision(0)
-        ;
-
-    lru->regStats(name + ".lru");
-
-    if (lifo && lifo_net) {
-        lifo_net->regStats(name + ".lifo_net");
-    } else if (lru_net) {
-        lru_net->regStats(name + ".lru_net");
-    }
-
-    nicUsedWhenEvicted
-        .name(name + ".nicUsedWhenEvicted")
-        .desc("number of NIC blks that were used before evicted")
-        ;
-
-    nicUsedTotLatency
-        .name(name + ".nicUsedTotLatency")
-        .desc("total cycles before eviction of used NIC blks")
-        ;
-
-    nicUsedTotEvicted
-        .name(name + ".nicUsedTotEvicted")
-        .desc("total number of used NIC blks evicted")
-        ;
-
-    nicUsedAvgLatency
-        .name(name + ".nicUsedAvgLatency")
-        .desc("avg number of cycles a used NIC blk is in cache")
-        .precision(0)
-        ;
-    nicUsedAvgLatency = nicUsedTotLatency / nicUsedTotEvicted;
-
-    usedEvictDist
-        .name(name + ".usedEvictDist")
-        .desc("distribution of used NIC blk eviction times")
-        .flags(pdf | cdf)
-        ;
-
-    nicUnusedWhenEvicted
-        .name(name + ".nicUnusedWhenEvicted")
-        .desc("number of NIC blks that were unused when evicted")
-        ;
-
-    nicUnusedTotLatency
-        .name(name + ".nicUnusedTotLatency")
-        .desc("total cycles before eviction of unused NIC blks")
-        ;
-
-    nicUnusedTotEvicted
-        .name(name + ".nicUnusedTotEvicted")
-        .desc("total number of unused NIC blks evicted")
-        ;
-
-    nicUnusedAvgLatency
-        .name(name + ".nicUnusedAvgLatency")
-        .desc("avg number of cycles an unused NIC blk is in cache")
-        .precision(0)
-        ;
-    nicUnusedAvgLatency = nicUnusedTotLatency / nicUnusedTotEvicted;
-
-    unusedEvictDist
-        .name(name + ".unusedEvictDist")
-        .desc("distribution of unused NIC blk eviction times")
-        .flags(pdf | cdf)
-        ;
-
-    nicUseByCPUCycleTotal
-        .name(name + ".nicUseByCPUCycleTotal")
-        .desc("total latency of NIC blks til usage time")
-        ;
-
-    nicBlksUsedByCPU
-        .name(name + ".nicBlksUsedByCPU")
-        .desc("total number of NIC blks used")
-        ;
-
-    nicAvgUsageByCPULatency
-        .name(name + ".nicAvgUsageByCPULatency")
-        .desc("average number of cycles before a NIC blk that is used gets used")
-        .precision(0)
-        ;
-    nicAvgUsageByCPULatency = nicUseByCPUCycleTotal / nicBlksUsedByCPU;
-
-    useByCPUCycleDist
-        .name(name + ".useByCPUCycleDist")
-        .desc("the distribution of cycle time in cache before NIC blk is used")
-        .flags(pdf | cdf)
-        ;
-
-    cpuUsedBlks
-        .name(name + ".cpuUsedBlks")
-        .desc("number of cpu blks that were used before evicted")
-        ;
-
-    cpuUnusedBlks
-        .name(name + ".cpuUnusedBlks")
-        .desc("number of cpu blks that were unused before evicted")
-        ;
-
-    nicAvgLatency
-        .name(name + ".nicAvgLatency")
-        .desc("avg number of cycles a NIC blk is in cache before evicted")
-        .precision(0)
-        ;
-    nicAvgLatency = (nicUnusedTotLatency + nicUsedTotLatency) /
-        (nicUnusedTotEvicted + nicUsedTotEvicted);
-
-    NR_CP_hits
-        .name(name + ".NR_CP_hits")
-        .desc("NIC requests hitting in CPU Partition")
-        ;
-
-    NR_NP_hits
-        .name(name + ".NR_NP_hits")
-        .desc("NIC requests hitting in NIC Partition")
-        ;
-
-    CR_CP_hits
-        .name(name + ".CR_CP_hits")
-        .desc("CPU requests hitting in CPU partition")
-        ;
-
-    CR_NP_hits
-        .name(name + ".CR_NP_hits")
-        .desc("CPU requests hitting in NIC partition")
-        ;
-
-}
-
-// probe cache for presence of given block.
-bool
-Split::probe(Addr addr) const
-{
-    bool success = lru->probe(addr);
-    if (!success) {
-        if (lifo && lifo_net)
-            success = lifo_net->probe(addr);
-        else if (lru_net)
-            success = lru_net->probe(addr);
-    }
-
-    return success;
-}
-
-
-SplitBlk*
-Split::findBlock(Addr addr, int &lat)
-{
-    SplitBlk *blk = lru->findBlock(addr, lat);
-    if (!blk) {
-        if (lifo && lifo_net) {
-            blk = lifo_net->findBlock(addr, lat);
-        } else if (lru_net) {
-            blk = lru_net->findBlock(addr, lat);
-        }
-    }
-
-    return blk;
-}
-
-SplitBlk*
-Split::findBlock(Addr addr) const
-{
-    SplitBlk *blk = lru->findBlock(addr);
-    if (!blk) {
-        if (lifo && lifo_net) {
-            blk = lifo_net->findBlock(addr);
-        } else if (lru_net) {
-            blk = lru_net->findBlock(addr);
-        }
-    }
-
-    return blk;
-}
-
-SplitBlk*
-Split::findReplacement(Addr addr, PacketList &writebacks)
-{
-    SplitBlk *blk = NULL;
-
-    assert(0);
-#if 0
-    if (pkt->nic_pkt()) {
-        DPRINTF(Split, "finding a replacement for nic_req\n");
-        nic_repl++;
-        if (lifo && lifo_net)
-            blk = lifo_net->findReplacement(addr, writebacks);
-        else if (lru_net)
-            blk = lru_net->findReplacement(addr, writebacks);
-        // in this case, this is an LRU only cache, it's non partitioned
-        else
-            blk = lru->findReplacement(addr, writebacks);
-    } else {
-        DPRINTF(Split, "finding replacement for cpu_req\n");
-        blk = lru->findReplacement(addr, writebacks);
-        cpu_repl++;
-    }
-
-    Tick latency = curTick - blk->ts;
-    if (blk->isNIC) {
-        if (blk->isUsed) {
-            nicUsedWhenEvicted++;
-            usedEvictDist.sample(latency);
-            nicUsedTotLatency += latency;
-            nicUsedTotEvicted++;
-        } else {
-            nicUnusedWhenEvicted++;
-            unusedEvictDist.sample(latency);
-            nicUnusedTotLatency += latency;
-            nicUnusedTotEvicted++;
-        }
-    } else {
-        if (blk->isUsed) {
-            cpuUsedBlks++;
-        } else {
-            cpuUnusedBlks++;
-        }
-    }
-
-    // blk attributes for the new blk coming IN
-    blk->ts = curTick;
-    blk->isNIC = (pkt->nic_pkt()) ? true : false;
-#endif
-
-    return blk;
-}
-
-void
-Split::invalidateBlk(Split::BlkType *blk)
-{
-    if (!blk) {
-        fatal("FIXME!\n");
-#if 0
-        if (lifo && lifo_net)
-            blk = lifo_net->findBlock(addr);
-        else if (lru_net)
-            blk = lru_net->findBlock(addr);
-#endif
-
-        if (!blk)
-            return;
-    }
-
-    blk->status = 0;
-    blk->isTouched = false;
-    tagsInUse--;
-}
-
-void
-Split::cleanupRefs()
-{
-    lru->cleanupRefs();
-    if (lifo && lifo_net)
-        lifo_net->cleanupRefs();
-    else if (lru_net)
-        lru_net->cleanupRefs();
-
-    ostream *memPrint = simout.create("memory_footprint.txt");
-
-    // this shouldn't be here but it happens at the end, which is what i want
-    memIter end = memHash.end();
-    for (memIter iter = memHash.begin(); iter != end; ++iter) {
-        ccprintf(*memPrint, "%8x\t%d\n", (*iter).first, (*iter).second);
-    }
-}
-
-Addr
-Split::regenerateBlkAddr(Addr tag, int set) const
-{
-    if (lifo_net)
-        return lifo_net->regenerateBlkAddr(tag, set);
-    else
-        return lru->regenerateBlkAddr(tag, set);
-}
-
-Addr
-Split::extractTag(Addr addr) const
-{
-    // need to fix this if we want to use it... old interface of
-    // passing in blk was too weird
-    assert(0);
-    return 0;
-/*
-    if (blk->part == 2) {
-        if (lifo_net)
-            return lifo_net->extractTag(addr);
-        else if (lru_net)
-            return lru_net->extractTag(addr);
-        else
-            panic("this shouldn't happen");
-    } else
-        return lru->extractTag(addr);
-*/
-}
-
diff --git a/src/mem/cache/tags/split.hh b/src/mem/cache/tags/split.hh
deleted file mode 100644
index e8954f791..000000000
--- a/src/mem/cache/tags/split.hh
+++ /dev/null
@@ -1,308 +0,0 @@
-/*
- * Copyright (c) 2004-2005 The Regents of The University of Michigan
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met: redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer;
- * redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution;
- * neither the name of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Authors: Lisa Hsu
- */
-
-/**
- * @file
- * Declaration of a split/partitioned tag store.
- */
-
-#ifndef __SPLIT_HH__
-#define __SPLIT_HH__
-
-#include <cstring>
-#include <list>
-
-#include "mem/cache/blk.hh" // base class
-#include "mem/cache/tags/split_blk.hh"
-#include "mem/packet.hh" // for inlined functions
-#include <assert.h>
-#include "mem/cache/tags/base.hh"
-#include "base/hashmap.hh"
-
-class BaseCache;
-class SplitLRU;
-class SplitLIFO;
-
-/**
- * A  cache tag store.
- */
-class Split : public BaseTags
-{
-  public:
-    /** Typedef the block type used in this tag store. */
-    typedef SplitBlk BlkType;
-    /** Typedef for a list of pointers to the local block class. */
-    typedef std::list<SplitBlk*> BlkList;
-  protected:
-    /** The number of sets in the cache. */
-    const int numSets;
-    /** The number of bytes in a block. */
-    const int blkSize;
-    /** Whether the 2nd partition (for the nic) is LIFO or not */
-    const bool lifo;
-    /** The hit latency. */
-    const int hitLatency;
-
-    Addr blkMask;
-
-    /** Number of NIC requests that hit in the NIC partition */
-    Stats::Scalar<> NR_NP_hits;
-    /** Number of NIC requests that hit in the CPU partition */
-    Stats::Scalar<> NR_CP_hits;
-    /** Number of CPU requests that hit in the NIC partition */
-    Stats::Scalar<> CR_NP_hits;
-    /** Number of CPU requests that hit in the CPU partition */
-    Stats::Scalar<> CR_CP_hits;
-    /** The number of nic replacements (i.e. misses) */
-    Stats::Scalar<> nic_repl;
-    /** The number of cpu replacements (i.e. misses) */
-    Stats::Scalar<> cpu_repl;
-
-    //For latency studies
-    /** the number of NIC blks that were used before evicted */
-    Stats::Scalar<> nicUsedWhenEvicted;
-    /** the total latency of used NIC blocks in the cache */
-    Stats::Scalar<> nicUsedTotLatency;
-    /** the total number of used NIC blocks evicted */
-    Stats::Scalar<> nicUsedTotEvicted;
-    /** the average number of cycles a used NIC blk is in the cache */
-    Stats::Formula nicUsedAvgLatency;
-    /** the Distribution of used NIC blk eviction times */
-    Stats::Distribution<> usedEvictDist;
-
-    /** the number of NIC blks that were unused before evicted */
-    Stats::Scalar<> nicUnusedWhenEvicted;
-    /** the total latency of unused NIC blks in the cache */
-    Stats::Scalar<> nicUnusedTotLatency;
-    /** the total number of unused NIC blocks evicted */
-    Stats::Scalar<> nicUnusedTotEvicted;
-    /** the average number of cycles an unused NIC blk is in the cache */
-    Stats::Formula nicUnusedAvgLatency;
-    /** the Distribution of unused NIC blk eviction times */
-    Stats::Distribution<> unusedEvictDist;
-
-    /** The total latency of NIC blocks to 1st usage time by CPU */
-    Stats::Scalar<> nicUseByCPUCycleTotal;
-    /** The total number of NIC blocks used */
-    Stats::Scalar<> nicBlksUsedByCPU;
-    /** the average number of cycles before a NIC blk that is used gets used by CPU */
-    Stats::Formula nicAvgUsageByCPULatency;
-    /** the Distribution of cycles time before a NIC blk is used by CPU*/
-    Stats::Distribution<> useByCPUCycleDist;
-
-    /** the number of CPU blks that were used before evicted */
-    Stats::Scalar<> cpuUsedBlks;
-    /** the number of CPU blks that were unused before evicted */
-    Stats::Scalar<> cpuUnusedBlks;
-
-    /** the avg number of cycles before a NIC blk is evicted */
-    Stats::Formula nicAvgLatency;
-
-    typedef m5::hash_map<Addr, int, m5::hash<Addr> > hash_t;
-    typedef hash_t::const_iterator memIter;
-    hash_t memHash;
-
-
-  private:
-    SplitLRU *lru;
-    SplitLRU *lru_net;
-    SplitLIFO *lifo_net;
-
-  public:
-    /**
-     * Construct and initialize this tag store.
-     * @param _numSets The number of sets in the cache.
-     * @param _blkSize The number of bytes in a block.
-     * @param _assoc The associativity of the cache.
-     * @param _hit_latency The latency in cycles for a hit.
-     */
-    Split(int _numSets, int _blkSize, int total_ways, int LRU1_assoc,
-          bool _lifo, bool _two_queue, int _hit_latency);
-
-    /**
-     * Destructor
-     */
-    virtual ~Split();
-
-    /**
-     * Register the stats for this object
-     * @param name The name to prepend to the stats name.
-     */
-    void regStats(const std::string &name);
-
-    /**
-     * Return the block size.
-     * @return the block size.
-     */
-    int getBlockSize()
-    {
-        return blkSize;
-    }
-
-    /**
-     * Return the subblock size. In the case of Split it is always the block
-     * size.
-     * @return The block size.
-     */
-    int getSubBlockSize()
-    {
-        return blkSize;
-    }
-
-    /**
-     * Search for the address in the cache.
-     * @param asid The address space ID.
-     * @param addr The address to find.
-     * @return True if the address is in the cache.
-     */
-    bool probe(Addr addr) const;
-
-    /**
-     * Invalidate the given block.
-     * @param blk The block to invalidate.
-     */
-    void invalidateBlk(BlkType *blk);
-
-    /**
-     * Finds the given address in the cache and update replacement data.
-     * Returns the access latency as a side effect.
-     * @param addr The address to find.
-     * @param asid The address space ID.
-     * @param lat The access latency.
-     * @return Pointer to the cache block if found.
-     */
-    SplitBlk* findBlock(Addr addr, int &lat);
-
-    /**
-     * Finds the given address in the cache, do not update replacement data.
-     * @param addr The address to find.
-     * @param asid The address space ID.
-     * @return Pointer to the cache block if found.
-     */
-    SplitBlk* findBlock(Addr addr) const;
-
-    /**
-     * Find a replacement block for the address provided.
-     * @param pkt The request to a find a replacement candidate for.
-     * @param writebacks List for any writebacks to be performed.
-     * @return The block to place the replacement in.
-     */
-    SplitBlk* findReplacement(Addr addr, PacketList &writebacks);
-
-
-    /**
-     * Generate the tag from the given address.
-     * @param addr The address to get the tag from.
-     * @return The tag of the address.
-     */
-    Addr extractTag(Addr addr) const;
-
-    /**
-     * Calculate the set index from the address.
-     * @param addr The address to get the set from.
-     * @return The set index of the address.
-     */
-    int extractSet(Addr addr) const
-    {
-        panic("should never call this!\n");
-        M5_DUMMY_RETURN
-    }
-
-    /**
-     * Get the block offset from an address.
-     * @param addr The address to get the offset of.
-     * @return The block offset.
-     */
-    int extractBlkOffset(Addr addr) const
-    {
-        return (addr & blkMask);
-    }
-
-    /**
-     * Align an address to the block size.
-     * @param addr the address to align.
-     * @return The block address.
-     */
-    Addr blkAlign(Addr addr) const
-    {
-        return (addr & ~(Addr) (blkMask));
-    }
-
-    /**
-     * Regenerate the block address from the tag.
-     * @param tag The tag of the block.
-     * @param set The set of the block.
-     * @return The block address.
-     */
-    Addr regenerateBlkAddr(Addr tag, int set) const;
-
-    /**
-     * Return the hit latency.
-     * @return the hit latency.
-     */
-    int getHitLatency() const
-    {
-        return hitLatency;
-    }
-
-    /**
-     * Read the data out of the internal storage of the given cache block.
-     * @param blk The cache block to read.
-     * @param data The buffer to read the data into.
-     * @return The cache block's data.
-     */
-    void readData(SplitBlk *blk, uint8_t *data)
-    {
-        std::memcpy(data, blk->data, blk->size);
-    }
-
-    /**
-     * Write data into the internal storage of the given cache block. Since in
-     * Split does not store data differently this just needs to update the size.
-     * @param blk The cache block to write.
-     * @param data The data to write.
-     * @param size The number of bytes to write.
-     * @param writebacks A list for any writebacks to be performed. May be
-     * needed when writing to a compressed block.
-     */
-    void writeData(SplitBlk *blk, uint8_t *data, int size,
-                   PacketList & writebacks)
-    {
-        assert(size <= blkSize);
-        blk->size = size;
-    }
-
-    /**
-     * Called at end of simulation to complete average block reference stats.
-     */
-    virtual void cleanupRefs();
-};
-
-#endif
diff --git a/src/mem/cache/tags/split_blk.hh b/src/mem/cache/tags/split_blk.hh
deleted file mode 100644
index d2efe08df..000000000
--- a/src/mem/cache/tags/split_blk.hh
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright (c) 2004-2005 The Regents of The University of Michigan
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met: redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer;
- * redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution;
- * neither the name of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Authors: Lisa Hsu
- */
-
-/**
- * @file
- * Declaration of partitioned tag store cache block class.
- */
-
-#ifndef __SPLIT_BLK_HH__
-#define __SPLIT_BLK_HH__
-
-#include "mem/cache/blk.hh" // base class
-
-/**
- * Split cache block.
- */
-class SplitBlk : public CacheBlk {
-  public:
-    /** Has this block been touched? Used to aid calculation of warmup time. */
-    bool isTouched;
-    /** Has this block been used after being brought in? (for LIFO partition) */
-    bool isUsed;
-    /** is this blk a NIC block? (i.e. requested by the NIC) */
-    bool isNIC;
-    /** timestamp of the arrival of this block into the cache */
-    Tick ts;
-    /** the previous block in the LIFO partition (brought in before than me) */
-    SplitBlk *prev;
-    /** the next block in the LIFO partition (brought in later than me) */
-    SplitBlk *next;
-    /** which partition this block is in */
-    int part;
-
-    SplitBlk()
-        : isTouched(false), isUsed(false), isNIC(false), ts(0), prev(NULL), next(NULL),
-          part(0)
-    {}
-};
-
-#endif
-
diff --git a/src/mem/cache/tags/split_lifo.cc b/src/mem/cache/tags/split_lifo.cc
deleted file mode 100644
index 3bdc7cae9..000000000
--- a/src/mem/cache/tags/split_lifo.cc
+++ /dev/null
@@ -1,331 +0,0 @@
-/*
- * Copyright (c) 2004-2005 The Regents of The University of Michigan
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met: redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer;
- * redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution;
- * neither the name of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Authors: Lisa Hsu
- */
-
-/**
- * @file
- * Definitions of LIFO tag store usable in a partitioned cache.
- */
-
-#include <string>
-
-#include "mem/cache/base.hh"
-#include "base/intmath.hh"
-#include "mem/cache/tags/split_lifo.hh"
-#include "sim/core.hh"
-#include "base/trace.hh"
-
-using namespace std;
-
-SplitBlk*
-LIFOSet::findBlk(Addr tag) const
-{
-    for (SplitBlk *blk = firstIn; blk != NULL; blk = blk->next) {
-        if (blk->tag == tag && blk->isValid()) {
-            return blk;
-        }
-    }
-    return NULL;
-}
-
-void
-LIFOSet::moveToLastIn(SplitBlk *blk)
-{
-    if (blk == lastIn)
-        return;
-
-    if (blk == firstIn) {
-        blk->next->prev = NULL;
-    } else {
-        blk->prev->next = blk->next;
-        blk->next->prev = blk->prev;
-    }
-    blk->next = NULL;
-    blk->prev = lastIn;
-    lastIn->next = blk;
-
-    lastIn = blk;
-}
-
-void
-LIFOSet::moveToFirstIn(SplitBlk *blk)
-{
-    if (blk == firstIn)
-        return;
-
-    if (blk == lastIn) {
-        blk->prev->next = NULL;
-    } else {
-        blk->next->prev = blk->prev;
-        blk->prev->next = blk->next;
-    }
-
-    blk->prev = NULL;
-    blk->next = firstIn;
-    firstIn->prev = blk;
-
-    firstIn = blk;
-}
-
-// create and initialize a LIFO cache structure
-SplitLIFO::SplitLIFO(int _blkSize, int _size, int _ways, int _hit_latency, bool two_Queue, int _part) :
-    blkSize(_blkSize), size(_size), numBlks(_size/_blkSize), numSets((_size/_ways)/_blkSize), ways(_ways),
-    hitLatency(_hit_latency), twoQueue(two_Queue), part(_part)
-{
-    if (!isPowerOf2(blkSize))
-        fatal("cache block size (in bytes) must be a power of 2");
-    if (!(hitLatency > 0))
-        fatal("access latency in cycles must be at least on cycle");
-    if (_ways == 0)
-        fatal("if instantiating a splitLIFO, needs non-zero size!");
-
-
-    SplitBlk  *blk;
-    int i, j, blkIndex;
-
-    setShift = floorLog2(blkSize);
-    blkMask = blkSize - 1;
-    setMask = numSets - 1;
-    tagShift = setShift + floorLog2(numSets);
-
-    warmedUp = false;
-    /** @todo Make warmup percentage a parameter. */
-    warmupBound = size/blkSize;
-
-    // allocate data blocks
-    blks = new SplitBlk[numBlks];
-    sets = new LIFOSet[numSets];
-    dataBlks = new uint8_t[size];
-
-/*
-    // these start off point to same blk
-    top = &(blks[0]);
-    head = top;
-*/
-
-    blkIndex = 0;
-    for (i=0; i < numSets; ++i) {
-        sets[i].ways = ways;
-        sets[i].lastIn = &blks[blkIndex];
-        sets[i].firstIn = &blks[blkIndex + ways - 1];
-
-        /* 3 cases:  if there is 1 way, if there are 2 ways, or if there are 3+.
-           in the case of 1 way, last in and first out point to the same blocks,
-           and the next and prev pointers need to be assigned specially.  and so on
-        */
-        /* deal with the first way */
-        blk = &blks[blkIndex];
-        blk->prev = &blks[blkIndex + 1];
-        blk->next = NULL;
-        blk->data = &dataBlks[blkSize*blkIndex];
-        blk->size = blkSize;
-        blk->part = part;
-        blk->set = i;
-        ++blkIndex;
-
-        /* if there are "middle" ways, do them here */
-        if (ways > 2) {
-            for (j=1; j < ways-1; ++j) {
-                blk = &blks[blkIndex];
-                blk->data = &dataBlks[blkSize*blkIndex];
-                blk->prev = &blks[blkIndex+1];
-                blk->next = &blks[blkIndex-1];
-                blk->data = &(dataBlks[blkSize*blkIndex]);
-                blk->size = blkSize;
-                blk->part = part;
-                blk->set = i;
-                ++blkIndex;
-            }
-        }
-
-        /* do the final way here, depending on whether the final way is the only
-           way or not
-        */
-        if (ways > 1) {
-            blk =  &blks[blkIndex];
-            blk->prev = NULL;
-            blk->next = &blks[blkIndex - 1];
-            blk->data = &dataBlks[blkSize*blkIndex];
-            blk->size = blkSize;
-            blk->part = part;
-            blk->set = i;
-            ++blkIndex;
-        } else {
-            blk->prev = NULL;
-        }
-    }
-    assert(blkIndex == numBlks);
-}
-
-SplitLIFO::~SplitLIFO()
-{
-    delete [] blks;
-    delete [] sets;
-    delete [] dataBlks;
-}
-
-void
-SplitLIFO::regStats(const std::string &name)
-{
-    BaseTags::regStats(name);
-
-    hits
-        .name(name + ".hits")
-        .desc("number of hits on this partition")
-        .precision(0)
-        ;
-
-    misses
-        .name(name + ".misses")
-        .desc("number of misses in this partition")
-        .precision(0)
-        ;
-
-    invalidations
-        .name(name + ".invalidations")
-        .desc("number of invalidations in this partition")
-        .precision(0)
-        ;
-}
-
-// probe cache for presence of given block.
-bool
-SplitLIFO::probe(Addr addr) const
-{
-    Addr tag = extractTag(addr);
-    unsigned myset = extractSet(addr);
-
-    SplitBlk* blk = sets[myset].findBlk(tag);
-    return (blk != NULL);
-}
-
-SplitBlk*
-SplitLIFO::findBlock(Addr addr, int &lat)
-{
-    Addr tag = extractTag(addr);
-    unsigned set = extractSet(addr);
-    SplitBlk *blk = sets[set].findBlk(tag);
-
-    lat = hitLatency;
-
-    if (blk) {
-        DPRINTF(Split, "Found LIFO blk %#x in set %d, with tag %#x\n",
-                addr, set, tag);
-        hits++;
-
-        if (blk->whenReady > curTick && blk->whenReady - curTick > hitLatency)
-            lat = blk->whenReady - curTick;
-        blk->refCount +=1;
-
-        if (twoQueue) {
-            blk->isUsed = true;
-            sets[set].moveToFirstIn(blk);
-        } else {
-            sets[set].moveToLastIn(blk);
-        }
-    }
-
-    return blk;
-}
-
-
-SplitBlk*
-SplitLIFO::findBlock(Addr addr) const
-{
-    Addr tag = extractTag(addr);
-    unsigned set = extractSet(addr);
-    SplitBlk *blk = sets[set].findBlk(tag);
-
-    return blk;
-}
-
-SplitBlk*
-SplitLIFO::findReplacement(Addr addr, PacketList &writebacks)
-{
-    unsigned set = extractSet(addr);
-
-    SplitBlk *firstIn = sets[set].firstIn;
-    SplitBlk *lastIn = sets[set].lastIn;
-
-    SplitBlk *blk;
-    if (twoQueue && firstIn->isUsed) {
-        blk = firstIn;
-        blk->isUsed = false;
-        sets[set].moveToLastIn(blk);
-    } else {
-        int withValue = sets[set].withValue;
-        if (withValue == ways) {
-            blk = lastIn;
-        } else {
-            blk = &(sets[set].firstIn[ways - ++withValue]);
-        }
-    }
-
-    DPRINTF(Split, "just assigned %#x addr into LIFO, replacing %#x status %#x\n",
-            addr, regenerateBlkAddr(blk->tag, set), blk->status);
-    if (blk->isValid()) {
-        replacements[0]++;
-        totalRefs += blk->refCount;
-        ++sampledRefs;
-        blk->refCount = 0;
-    } else {
-        tagsInUse++;
-        blk->isTouched = true;
-        if (!warmedUp && tagsInUse.value() >= warmupBound) {
-            warmedUp = true;
-            warmupCycle = curTick;
-        }
-    }
-
-    misses++;
-
-    return blk;
-}
-
-void
-SplitLIFO::invalidateBlk(SplitLIFO::BlkType *blk)
-{
-    if (blk) {
-        blk->status = 0;
-        blk->isTouched = false;
-        tagsInUse--;
-        invalidations++;
-    }
-}
-
-void
-SplitLIFO::cleanupRefs()
-{
-    for (int i = 0; i < numBlks; ++i) {
-        if (blks[i].isValid()) {
-            totalRefs += blks[i].refCount;
-            ++sampledRefs;
-        }
-    }
-}
diff --git a/src/mem/cache/tags/split_lifo.hh b/src/mem/cache/tags/split_lifo.hh
deleted file mode 100644
index 0fd5f5c3c..000000000
--- a/src/mem/cache/tags/split_lifo.hh
+++ /dev/null
@@ -1,312 +0,0 @@
-/*
- * Copyright (c) 2004-2005 The Regents of The University of Michigan
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met: redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer;
- * redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution;
- * neither the name of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Authors: Lisa Hsu
- */
-
-/**
- * @file
- * Declaration of a LIFO tag store usable in a partitioned cache.
- */
-
-#ifndef __SPLIT_LIFO_HH__
-#define __SPLIT_LIFO_HH__
-
-#include <cstring>
-#include <list>
-
-#include "mem/cache/blk.hh" // base class
-#include "mem/cache/tags/split_blk.hh"
-#include "mem/packet.hh" // for inlined functions
-#include "base/hashmap.hh"
-#include <assert.h>
-#include "mem/cache/tags/base.hh"
-
-class BaseCache;
-
-/**
- * A LIFO set of cache blks
- */
-class LIFOSet {
-  public:
-    /** the number of blocks in this set */
-    int ways;
-
-    /** Cache blocks in this set, maintained in LIFO order where
-        0 = Last in (head) */
-    SplitBlk *lastIn;
-    SplitBlk *firstIn;
-
-    /** has the initial "filling" of this set finished? i.e., have you had
-     * 'ways' number of compulsory misses in this set yet? if withValue == ways,
-     * then yes.  withValue is meant to be the number of blocks in the set that have
-     * gone through their first compulsory miss.
-     */
-    int withValue;
-
-    /**
-     * Find a block matching the tag in this set.
-     * @param asid The address space ID.
-     * @param tag the Tag you are looking for
-     * @return Pointer to the block, if found, NULL otherwise
-     */
-    SplitBlk* findBlk(Addr tag) const;
-
-    void moveToLastIn(SplitBlk *blk);
-    void moveToFirstIn(SplitBlk *blk);
-
-    LIFOSet()
-        : ways(-1), lastIn(NULL), firstIn(NULL), withValue(0)
-    {}
-};
-
-/**
- * A LIFO cache tag store.
- */
-class SplitLIFO : public BaseTags
-{
-  public:
-    /** Typedef the block type used in this tag store. */
-    typedef SplitBlk BlkType;
-    /** Typedef for a list of pointers to the local block class. */
-    typedef std::list<SplitBlk*> BlkList;
-  protected:
-    /** The number of bytes in a block. */
-    const int blkSize;
-    /** the size of the cache in bytes */
-    const int size;
-    /** the number of blocks in the cache */
-    const int numBlks;
-    /** the number of sets in the cache */
-    const int numSets;
-    /** the number of ways in the cache */
-    const int ways;
-    /** The hit latency. */
-    const int hitLatency;
-    /** whether this is a "2 queue" replacement @sa moveToLastIn @sa moveToFirstIn */
-    const bool twoQueue;
-    /** indicator for which partition this is */
-    const int part;
-
-    /** The cache blocks. */
-    SplitBlk *blks;
-    /** The Cache sets */
-    LIFOSet *sets;
-    /** The data blocks, 1 per cache block. */
-    uint8_t *dataBlks;
-
-    /** The amount to shift the address to get the set. */
-    int setShift;
-    /** The amount to shift the address to get the tag. */
-    int tagShift;
-    /** Mask out all bits that aren't part of the set index. */
-    unsigned setMask;
-    /** Mask out all bits that aren't part of the block offset. */
-    unsigned blkMask;
-
-
-    /** the number of hit in this partition */
-    Stats::Scalar<> hits;
-    /** the number of blocks brought into this partition (i.e. misses) */
-    Stats::Scalar<> misses;
-    /** the number of invalidations in this partition */
-    Stats::Scalar<> invalidations;
-
-public:
-    /**
-     * Construct and initialize this tag store.
-     * @param _numSets The number of sets in the cache.
-     * @param _blkSize The number of bytes in a block.
-     * @param _assoc The associativity of the cache.
-     * @param _hit_latency The latency in cycles for a hit.
-     */
-    SplitLIFO(int _blkSize, int _size, int _ways, int _hit_latency, bool twoQueue, int _part);
-
-    /**
-     * Destructor
-     */
-    virtual ~SplitLIFO();
-
-    /**
-     * Register the statistics for this object
-     * @param name The name to precede the stat
-     */
-    void regStats(const std::string &name);
-
-    /**
-     * Return the block size.
-     * @return the block size.
-     */
-    int getBlockSize()
-    {
-        return blkSize;
-    }
-
-    /**
-     * Return the subblock size. In the case of LIFO it is always the block
-     * size.
-     * @return The block size.
-     */
-    int getSubBlockSize()
-    {
-        return blkSize;
-    }
-
-    /**
-     * Search for the address in the cache.
-     * @param asid The address space ID.
-     * @param addr The address to find.
-     * @return True if the address is in the cache.
-     */
-    bool probe( Addr addr) const;
-
-    /**
-     * Invalidate the given block.
-     * @param blk The block to invalidate.
-     */
-    void invalidateBlk(BlkType *blk);
-
-    /**
-     * Finds the given address in the cache and update replacement data.
-     * Returns the access latency as a side effect.
-     * @param addr The address to find.
-     * @param asid The address space ID.
-     * @param lat The access latency.
-     * @return Pointer to the cache block if found.
-     */
-    SplitBlk* findBlock(Addr addr, int &lat);
-
-    /**
-     * Finds the given address in the cache, do not update replacement data.
-     * @param addr The address to find.
-     * @param asid The address space ID.
-     * @return Pointer to the cache block if found.
-     */
-    SplitBlk* findBlock(Addr addr) const;
-
-    /**
-     * Find a replacement block for the address provided.
-     * @param pkt The request to a find a replacement candidate for.
-     * @param writebacks List for any writebacks to be performed.
-     * @return The block to place the replacement in.
-     */
-    SplitBlk* findReplacement(Addr addr, PacketList &writebacks);
-
-    /**
-     * Generate the tag from the given address.
-     * @param addr The address to get the tag from.
-     * @return The tag of the address.
-     */
-    Addr extractTag(Addr addr) const
-    {
-        return (addr >> tagShift);
-    }
-
-   /**
-     * Calculate the set index from the address.
-     * @param addr The address to get the set from.
-     * @return The set index of the address.
-     */
-    int extractSet(Addr addr) const
-    {
-        return ((addr >> setShift) & setMask);
-    }
-
-    /**
-     * Get the block offset from an address.
-     * @param addr The address to get the offset of.
-     * @return The block offset.
-     */
-    int extractBlkOffset(Addr addr) const
-    {
-        return (addr & blkMask);
-    }
-
-    /**
-     * Align an address to the block size.
-     * @param addr the address to align.
-     * @return The block address.
-     */
-    Addr blkAlign(Addr addr) const
-    {
-        return (addr & ~(Addr)blkMask);
-    }
-
-    /**
-     * Regenerate the block address from the tag.
-     * @param tag The tag of the block.
-     * @param set The set of the block.
-     * @return The block address.
-     */
-    Addr regenerateBlkAddr(Addr tag, unsigned set) const
-    {
-        return ((tag << tagShift) | ((Addr)set << setShift));
-    }
-
-    /**
-     * Return the hit latency.
-     * @return the hit latency.
-     */
-    int getHitLatency() const
-    {
-        return hitLatency;
-    }
-
-    /**
-     * Read the data out of the internal storage of the given cache block.
-     * @param blk The cache block to read.
-     * @param data The buffer to read the data into.
-     * @return The cache block's data.
-     */
-    void readData(SplitBlk *blk, uint8_t *data)
-    {
-        std::memcpy(data, blk->data, blk->size);
-    }
-
-    /**
-     * Write data into the internal storage of the given cache block. Since in
-     * LIFO does not store data differently this just needs to update the size.
-     * @param blk The cache block to write.
-     * @param data The data to write.
-     * @param size The number of bytes to write.
-     * @param writebacks A list for any writebacks to be performed. May be
-     * needed when writing to a compressed block.
-     */
-    void writeData(SplitBlk *blk, uint8_t *data, int size,
-                   PacketList & writebacks)
-    {
-        assert(size <= blkSize);
-        blk->size = size;
-    }
-
-    /**
-     * Called at end of simulation to complete average block reference stats.
-     */
-    virtual void cleanupRefs();
-};
-
-#endif
diff --git a/src/mem/cache/tags/split_lru.cc b/src/mem/cache/tags/split_lru.cc
deleted file mode 100644
index 2b01b07cd..000000000
--- a/src/mem/cache/tags/split_lru.cc
+++ /dev/null
@@ -1,260 +0,0 @@
-/*
- * Copyright (c) 2004-2005 The Regents of The University of Michigan
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met: redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer;
- * redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution;
- * neither the name of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Authors: Lisa Hsu
- */
-
-/**
- * @file
- * Definitions of LRU tag store for a partitioned cache.
- */
-
-#include <string>
-
-#include "mem/cache/base.hh"
-#include "base/intmath.hh"
-#include "mem/cache/tags/split_lru.hh"
-#include "sim/core.hh"
-
-using namespace std;
-
-SplitBlk*
-SplitCacheSet::findBlk(Addr tag) const
-{
-    for (int i = 0; i < assoc; ++i) {
-        if (blks[i]->tag == tag && blks[i]->isValid()) {
-            return blks[i];
-        }
-    }
-    return 0;
-}
-
-
-void
-SplitCacheSet::moveToHead(SplitBlk *blk)
-{
-    // nothing to do if blk is already head
-    if (blks[0] == blk)
-        return;
-
-    // write 'next' block into blks[i], moving up from MRU toward LRU
-    // until we overwrite the block we moved to head.
-
-    // start by setting up to write 'blk' into blks[0]
-    int i = 0;
-    SplitBlk *next = blk;
-
-    do {
-        assert(i < assoc);
-        // swap blks[i] and next
-        SplitBlk *tmp = blks[i];
-        blks[i] = next;
-        next = tmp;
-        ++i;
-    } while (next != blk);
-}
-
-
-// create and initialize a LRU/MRU cache structure
-SplitLRU::SplitLRU(int _numSets, int _blkSize, int _assoc, int _hit_latency, int _part) :
-    numSets(_numSets), blkSize(_blkSize), assoc(_assoc), hitLatency(_hit_latency), part(_part)
-{
-    // Check parameters
-    if (blkSize < 4 || !isPowerOf2(blkSize)) {
-        fatal("Block size must be at least 4 and a power of 2");
-    }
-    if (numSets <= 0 || !isPowerOf2(numSets)) {
-        fatal("# of sets must be non-zero and a power of 2");
-    }
-    if (assoc <= 0) {
-        fatal("associativity must be greater than zero");
-    }
-    if (hitLatency <= 0) {
-        fatal("access latency must be greater than zero");
-    }
-
-    SplitBlk  *blk;
-    int i, j, blkIndex;
-
-    blkMask = blkSize - 1;
-    setShift = floorLog2(blkSize);
-    setMask = numSets - 1;
-    tagShift = setShift + floorLog2(numSets);
-    warmedUp = false;
-    /** @todo Make warmup percentage a parameter. */
-    warmupBound = numSets * assoc;
-
-    sets = new SplitCacheSet[numSets];
-    blks = new SplitBlk[numSets * assoc];
-    // allocate data storage in one big chunk
-    dataBlks = new uint8_t[numSets*assoc*blkSize];
-
-    blkIndex = 0;       // index into blks array
-    for (i = 0; i < numSets; ++i) {
-        sets[i].assoc = assoc;
-
-        sets[i].blks = new SplitBlk*[assoc];
-
-        // link in the data blocks
-        for (j = 0; j < assoc; ++j) {
-            // locate next cache block
-            blk = &blks[blkIndex];
-            blk->data = &dataBlks[blkSize*blkIndex];
-            ++blkIndex;
-
-            // invalidate new cache block
-            blk->status = 0;
-
-            //EGH Fix Me : do we need to initialize blk?
-
-            // Setting the tag to j is just to prevent long chains in the hash
-            // table; won't matter because the block is invalid
-            blk->tag = j;
-            blk->whenReady = 0;
-            blk->isTouched = false;
-            blk->size = blkSize;
-            sets[i].blks[j]=blk;
-            blk->set = i;
-            blk->part = part;
-        }
-    }
-}
-
-SplitLRU::~SplitLRU()
-{
-    delete [] dataBlks;
-    delete [] blks;
-    delete [] sets;
-}
-
-void
-SplitLRU::regStats(const std::string &name)
-{
-    BaseTags::regStats(name);
-
-    hits
-        .name(name + ".hits")
-        .desc("number of hits on this partition")
-        .precision(0)
-        ;
-
-    misses
-        .name(name + ".misses")
-        .desc("number of misses in this partition")
-        .precision(0)
-        ;
-}
-
-// probe cache for presence of given block.
-bool
-SplitLRU::probe(Addr addr) const
-{
-    //  return(findBlock(Read, addr, asid) != 0);
-    Addr tag = extractTag(addr);
-    unsigned myset = extractSet(addr);
-
-    SplitBlk *blk = sets[myset].findBlk(tag);
-
-    return (blk != NULL);       // true if in cache
-}
-
-SplitBlk*
-SplitLRU::findBlock(Addr addr, int &lat)
-{
-    Addr tag = extractTag(addr);
-    unsigned set = extractSet(addr);
-    SplitBlk *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;
-        hits++;
-    }
-
-    return blk;
-}
-
-
-SplitBlk*
-SplitLRU::findBlock(Addr addr) const
-{
-    Addr tag = extractTag(addr);
-    unsigned set = extractSet(addr);
-    SplitBlk *blk = sets[set].findBlk(tag);
-    return blk;
-}
-
-SplitBlk*
-SplitLRU::findReplacement(Addr addr, PacketList &writebacks)
-{
-    unsigned set = extractSet(addr);
-    // grab a replacement candidate
-    SplitBlk *blk = sets[set].blks[assoc-1];
-    sets[set].moveToHead(blk);
-    if (blk->isValid()) {
-        replacements[0]++;
-        totalRefs += blk->refCount;
-        ++sampledRefs;
-        blk->refCount = 0;
-    } else if (!blk->isTouched) {
-        tagsInUse++;
-        blk->isTouched = true;
-        if (!warmedUp && tagsInUse.value() >= warmupBound) {
-            warmedUp = true;
-            warmupCycle = curTick;
-        }
-    }
-
-    misses++;
-
-    return blk;
-}
-
-void
-SplitLRU::invalidateBlk(SplitLRU::BlkType *blk)
-{
-    if (blk) {
-        blk->status = 0;
-        blk->isTouched = false;
-        tagsInUse--;
-    }
-}
-
-void
-SplitLRU::cleanupRefs()
-{
-    for (int i = 0; i < numSets*assoc; ++i) {
-        if (blks[i].isValid()) {
-            totalRefs += blks[i].refCount;
-            ++sampledRefs;
-        }
-    }
-}
diff --git a/src/mem/cache/tags/split_lru.hh b/src/mem/cache/tags/split_lru.hh
deleted file mode 100644
index d41b6efa7..000000000
--- a/src/mem/cache/tags/split_lru.hh
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * Copyright (c) 2004-2005 The Regents of The University of Michigan
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met: redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer;
- * redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution;
- * neither the name of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Authors: Lisa Hsu
- */
-
-/**
- * @file
- * Declaration of a LRU tag store for a partitioned cache.
- */
-
-#ifndef __SPLIT_LRU_HH__
-#define __SPLIT_LRU_HH__
-
-#include <cstring>
-#include <list>
-
-#include "mem/cache/blk.hh" // base class
-#include "mem/cache/tags/split_blk.hh"
-#include "mem/packet.hh" // for inlined functions
-#include <assert.h>
-#include "mem/cache/tags/base.hh"
-
-class BaseCache;
-
-/**
- * An associative set of cache blocks.
- */
-
-class SplitCacheSet
-{
-  public:
-    /** The associativity of this set. */
-    int assoc;
-
-    /** Cache blocks in this set, maintained in LRU order 0 = MRU. */
-    SplitBlk **blks;
-
-    /**
-     * Find a block matching the tag in this set.
-     * @param asid The address space ID.
-     * @param tag The Tag to find.
-     * @return Pointer to the block if found.
-     */
-    SplitBlk* findBlk(Addr tag) const;
-
-    /**
-     * Move the given block to the head of the list.
-     * @param blk The block to move.
-     */
-    void moveToHead(SplitBlk *blk);
-};
-
-/**
- * A LRU cache tag store.
- */
-class SplitLRU : public BaseTags
-{
-  public:
-    /** Typedef the block type used in this tag store. */
-    typedef SplitBlk BlkType;
-    /** Typedef for a list of pointers to the local block class. */
-    typedef std::list<SplitBlk*> BlkList;
-  protected:
-    /** The number of sets in the cache. */
-    const int numSets;
-    /** The number of bytes in a block. */
-    const int blkSize;
-    /** The associativity of the cache. */
-    const int assoc;
-    /** The hit latency. */
-    const int hitLatency;
-    /** indicator for which partition this is */
-    const int part;
-
-    /** The cache sets. */
-    SplitCacheSet *sets;
-
-    /** The cache blocks. */
-    SplitBlk *blks;
-    /** The data blocks, 1 per cache block. */
-    uint8_t *dataBlks;
-
-    /** The amount to shift the address to get the set. */
-    int setShift;
-    /** The amount to shift the address to get the tag. */
-    int tagShift;
-    /** Mask out all bits that aren't part of the set index. */
-    unsigned setMask;
-    /** Mask out all bits that aren't part of the block offset. */
-    unsigned blkMask;
-
-    /** number of hits in this partition */
-    Stats::Scalar<> hits;
-    /** number of blocks brought into this partition (i.e. misses) */
-    Stats::Scalar<> misses;
-
-public:
-    /**
-     * Construct and initialize this tag store.
-     * @param _numSets The number of sets in the cache.
-     * @param _blkSize The number of bytes in a block.
-     * @param _assoc The associativity of the cache.
-     * @param _hit_latency The latency in cycles for a hit.
-     */
-    SplitLRU(int _numSets, int _blkSize, int _assoc, int _hit_latency, int _part);
-
-    /**
-     * Destructor
-     */
-    virtual ~SplitLRU();
-
-    /**
-     * Register the statistics for this object
-     * @param name The name to precede the stat
-     */
-    void regStats(const std::string &name);
-
-    /**
-     * Return the block size.
-     * @return the block size.
-     */
-    int getBlockSize()
-    {
-        return blkSize;
-    }
-
-    /**
-     * Return the subblock size. In the case of LRU it is always the block
-     * size.
-     * @return The block size.
-     */
-    int getSubBlockSize()
-    {
-        return blkSize;
-    }
-
-    /**
-     * Search for the address in the cache.
-     * @param asid The address space ID.
-     * @param addr The address to find.
-     * @return True if the address is in the cache.
-     */
-    bool probe(Addr addr) const;
-
-    /**
-     * Invalidate the given block.
-     * @param blk The block to invalidate.
-     */
-    void invalidateBlk(BlkType *blk);
-
-    /**
-     * Finds the given address in the cache and update replacement data.
-     * Returns the access latency as a side effect.
-     * @param addr The address to find.
-     * @param asid The address space ID.
-     * @param lat The access latency.
-     * @return Pointer to the cache block if found.
-     */
-    SplitBlk* findBlock(Addr addr, int &lat);
-
-    /**
-     * Finds the given address in the cache, do not update replacement data.
-     * @param addr The address to find.
-     * @param asid The address space ID.
-     * @return Pointer to the cache block if found.
-     */
-    SplitBlk* findBlock(Addr addr) const;
-
-    /**
-     * Find a replacement block for the address provided.
-     * @param pkt The request to a find a replacement candidate for.
-     * @param writebacks List for any writebacks to be performed.
-     * @return The block to place the replacement in.
-     */
-    SplitBlk* findReplacement(Addr addr, PacketList &writebacks);
-
-    /**
-     * Generate the tag from the given address.
-     * @param addr The address to get the tag from.
-     * @return The tag of the address.
-     */
-    Addr extractTag(Addr addr) const
-    {
-        return (addr >> tagShift);
-    }
-
-    /**
-     * Calculate the set index from the address.
-     * @param addr The address to get the set from.
-     * @return The set index of the address.
-     */
-    int extractSet(Addr addr) const
-    {
-        return ((addr >> setShift) & setMask);
-    }
-
-    /**
-     * Get the block offset from an address.
-     * @param addr The address to get the offset of.
-     * @return The block offset.
-     */
-    int extractBlkOffset(Addr addr) const
-    {
-        return (addr & blkMask);
-    }
-
-    /**
-     * Align an address to the block size.
-     * @param addr the address to align.
-     * @return The block address.
-     */
-    Addr blkAlign(Addr addr) const
-    {
-        return (addr & ~(Addr)blkMask);
-    }
-
-    /**
-     * Regenerate the block address from the tag.
-     * @param tag The tag of the block.
-     * @param set The set of the block.
-     * @return The block address.
-     */
-    Addr regenerateBlkAddr(Addr tag, unsigned set) const
-    {
-        return ((tag << tagShift) | ((Addr)set << setShift));
-    }
-
-    /**
-     * Return the hit latency.
-     * @return the hit latency.
-     */
-    int getHitLatency() const
-    {
-        return hitLatency;
-    }
-
-    /**
-     * Read the data out of the internal storage of the given cache block.
-     * @param blk The cache block to read.
-     * @param data The buffer to read the data into.
-     * @return The cache block's data.
-     */
-    void readData(SplitBlk *blk, uint8_t *data)
-    {
-        std::memcpy(data, blk->data, blk->size);
-    }
-
-    /**
-     * Write data into the internal storage of the given cache block. Since in
-     * LRU does not store data differently this just needs to update the size.
-     * @param blk The cache block to write.
-     * @param data The data to write.
-     * @param size The number of bytes to write.
-     * @param writebacks A list for any writebacks to be performed. May be
-     * needed when writing to a compressed block.
-     */
-    void writeData(SplitBlk *blk, uint8_t *data, int size,
-                   PacketList & writebacks)
-    {
-        assert(size <= blkSize);
-        blk->size = size;
-    }
-
-    /**
-     * Called at end of simulation to complete average block reference stats.
-     */
-    virtual void cleanupRefs();
-};
-
-#endif
diff --git a/src/mem/config/cache.hh b/src/mem/config/cache.hh
index 24da04021..946ed444f 100644
--- a/src/mem/config/cache.hh
+++ b/src/mem/config/cache.hh
@@ -36,7 +36,4 @@
  */
 #define USE_CACHE_LRU 1
 #define USE_CACHE_FALRU 1
-// #define USE_CACHE_SPLIT 1
-// #define USE_CACHE_SPLIT_LIFO 1
 #define USE_CACHE_IIC 1
-