Merge ktlim@zizzer:/bk/newmem

into  zamp.eecs.umich.edu:/z/ktlim2/clean/newmem-busfix

configs/example/fs.py:
configs/example/se.py:
src/mem/tport.hh:
    Hand merge.

--HG--
extra : convert_revision : b9df95534d43b3b311f24ae24717371d03d615bf

49 files changed, 128 insertions, 194 deletions

diff --git a/configs/example/fs.py b/configs/example/fs.py
index 3ce463879..67c3912ef 100644
--- a/configs/example/fs.py
+++ b/configs/example/fs.py
@@ -107,13 +107,11 @@ for i in xrange(np):
         test_sys.cpu[i].addPrivateSplitL1Caches(L1Cache(size = '32kB'),
                                                 L1Cache(size = '64kB'))
     test_sys.cpu[i].connectMemPorts(test_sys.membus)
-    test_sys.cpu[i].mem = test_sys.physmem
 
 if len(bm) == 2:
     drive_sys = makeLinuxAlphaSystem(drive_mem_mode, bm[1])
     drive_sys.cpu = DriveCPUClass(cpu_id=0)
     drive_sys.cpu.connectMemPorts(drive_sys.membus)
-    drive_sys.cpu.mem = drive_sys.physmem
     root = makeDualRoot(test_sys, drive_sys, options.etherdump)
 elif len(bm) == 1:
     root = Root(clock = '1THz', system = test_sys)
diff --git a/configs/example/se.py b/configs/example/se.py
index 83c2b1f8d..1d92eb954 100644
--- a/configs/example/se.py
+++ b/configs/example/se.py
@@ -118,7 +118,6 @@ for i in xrange(np):
         system.cpu[i].addPrivateSplitL1Caches(L1Cache(size = '32kB'),
                                               L1Cache(size = '64kB'))
     system.cpu[i].connectMemPorts(system.membus)
-    system.cpu[i].mem = system.physmem
     system.cpu[i].workload = process
 
 root = Root(system = system)
diff --git a/src/cpu/checker/cpu.cc b/src/cpu/checker/cpu.cc
index 9cb6b032e..2e81b7b31 100644
--- a/src/cpu/checker/cpu.cc
+++ b/src/cpu/checker/cpu.cc
@@ -72,6 +72,12 @@ CheckerCPU::CheckerCPU(Params *p)
     systemPtr = NULL;
 #else
     process = p->process;
+    thread = new SimpleThread(this, /* thread_num */ 0, process,
+                              /* asid */ 0);
+
+    thread->setStatus(ThreadContext::Suspended);
+    tc = thread->getTC();
+    threadContexts.push_back(tc);
 #endif
 
     result.integer = 0;
@@ -82,20 +88,6 @@ CheckerCPU::~CheckerCPU()
 }
 
 void
-CheckerCPU::setMemory(MemObject *mem)
-{
-#if !FULL_SYSTEM
-    memPtr = mem;
-    thread = new SimpleThread(this, /* thread_num */ 0, process,
-                              /* asid */ 0, mem);
-
-    thread->setStatus(ThreadContext::Suspended);
-    tc = thread->getTC();
-    threadContexts.push_back(tc);
-#endif
-}
-
-void
 CheckerCPU::setSystem(System *system)
 {
 #if FULL_SYSTEM
diff --git a/src/cpu/checker/cpu.hh b/src/cpu/checker/cpu.hh
index 00b01171f..336cb1714 100644
--- a/src/cpu/checker/cpu.hh
+++ b/src/cpu/checker/cpu.hh
@@ -112,10 +112,6 @@ class CheckerCPU : public BaseCPU
 
     Process *process;
 
-    void setMemory(MemObject *mem);
-
-    MemObject *memPtr;
-
     void setSystem(System *system);
 
     System *systemPtr;
diff --git a/src/cpu/memtest/memtest.hh b/src/cpu/memtest/memtest.hh
index edde4a3b2..2694efd39 100644
--- a/src/cpu/memtest/memtest.hh
+++ b/src/cpu/memtest/memtest.hh
@@ -97,7 +97,7 @@ class MemTest : public MemObject
       public:
 
         CpuPort(const std::string &_name, MemTest *_memtest)
-            : Port(_name), memtest(_memtest)
+            : Port(_name, _memtest), memtest(_memtest)
         { }
 
       protected:
diff --git a/src/cpu/o3/alpha/cpu_builder.cc b/src/cpu/o3/alpha/cpu_builder.cc
index ff123a6f7..ca316433b 100644
--- a/src/cpu/o3/alpha/cpu_builder.cc
+++ b/src/cpu/o3/alpha/cpu_builder.cc
@@ -61,8 +61,6 @@ Param<Tick> profile;
 SimObjectVectorParam<Process *> workload;
 #endif // FULL_SYSTEM
 
-SimObjectParam<MemObject *> mem;
-
 SimObjectParam<BaseCPU *> checker;
 
 Param<Counter> max_insts_any_thread;
@@ -169,8 +167,6 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(DerivO3CPU)
     INIT_PARAM(workload, "Processes to run"),
 #endif // FULL_SYSTEM
 
-    INIT_PARAM(mem, "Memory"),
-
     INIT_PARAM_DFLT(checker, "Checker CPU", NULL),
 
     INIT_PARAM_DFLT(max_insts_any_thread,
@@ -314,8 +310,6 @@ CREATE_SIM_OBJECT(DerivO3CPU)
     params->workload = workload;
 #endif // FULL_SYSTEM
 
-    params->mem = mem;
-
     params->checker = checker;
 
     params->max_insts_any_thread = max_insts_any_thread;
diff --git a/src/cpu/o3/alpha/cpu_impl.hh b/src/cpu/o3/alpha/cpu_impl.hh
index b7362fad9..5deee27de 100644
--- a/src/cpu/o3/alpha/cpu_impl.hh
+++ b/src/cpu/o3/alpha/cpu_impl.hh
@@ -77,24 +77,10 @@ AlphaO3CPU<Impl>::AlphaO3CPU(Params *params)
         if (i < params->workload.size()) {
             DPRINTF(O3CPU, "Workload[%i] process is %#x",
                     i, this->thread[i]);
-            this->thread[i] = new Thread(this, i, params->workload[i],
-                                         i, params->mem);
+            this->thread[i] = new Thread(this, i, params->workload[i], i);
 
             this->thread[i]->setStatus(ThreadContext::Suspended);
 
-#if !FULL_SYSTEM
-            /* Use this port to for syscall emulation writes to memory. */
-            Port *mem_port;
-            TranslatingPort *trans_port;
-            trans_port = new TranslatingPort(csprintf("%s-%d-funcport",
-                                                      name(), i),
-                                             params->workload[i]->pTable,
-                                             false);
-            mem_port = params->mem->getPort("functional");
-            mem_port->setPeer(trans_port);
-            trans_port->setPeer(mem_port);
-            this->thread[i]->setMemPort(trans_port);
-#endif
             //usedTids[i] = true;
             //threadMap[i] = i;
         } else {
@@ -102,7 +88,7 @@ AlphaO3CPU<Impl>::AlphaO3CPU(Params *params)
             //when scheduling threads to CPU
             Process* dummy_proc = NULL;
 
-            this->thread[i] = new Thread(this, i, dummy_proc, i, params->mem);
+            this->thread[i] = new Thread(this, i, dummy_proc, i);
             //usedTids[i] = false;
         }
 #endif // !FULL_SYSTEM
diff --git a/src/cpu/o3/cpu.cc b/src/cpu/o3/cpu.cc
index 367508288..dfe42d882 100644
--- a/src/cpu/o3/cpu.cc
+++ b/src/cpu/o3/cpu.cc
@@ -187,7 +187,6 @@ FullO3CPU<Impl>::FullO3CPU(Params *params)
       system(params->system),
       physmem(system->physmem),
 #endif // FULL_SYSTEM
-      mem(params->mem),
       drainCount(0),
       deferRegistration(params->deferRegistration),
       numThreads(number_of_threads)
@@ -204,7 +203,6 @@ FullO3CPU<Impl>::FullO3CPU(Params *params)
 #if USE_CHECKER
         BaseCPU *temp_checker = params->checker;
         checker = dynamic_cast<Checker<DynInstPtr> *>(temp_checker);
-        checker->setMemory(mem);
 #if FULL_SYSTEM
         checker->setSystem(params->system);
 #endif
diff --git a/src/cpu/o3/cpu.hh b/src/cpu/o3/cpu.hh
index fe510519c..2bf9cb23b 100644
--- a/src/cpu/o3/cpu.hh
+++ b/src/cpu/o3/cpu.hh
@@ -620,9 +620,6 @@ class FullO3CPU : public BaseO3CPU
     PhysicalMemory *physmem;
 #endif
 
-    /** Pointer to memory. */
-    MemObject *mem;
-
     /** Event to call process() on once draining has completed. */
     Event *drainEvent;
 
diff --git a/src/cpu/o3/fetch.hh b/src/cpu/o3/fetch.hh
index 5555bff85..cc9a8abf5 100644
--- a/src/cpu/o3/fetch.hh
+++ b/src/cpu/o3/fetch.hh
@@ -329,8 +329,6 @@ class DefaultFetch
     /** Wire used to write any information heading to decode. */
     typename TimeBuffer<FetchStruct>::wire toDecode;
 
-    MemObject *mem;
-
     /** Icache interface. */
     IcachePort *icachePort;
 
diff --git a/src/cpu/o3/fetch_impl.hh b/src/cpu/o3/fetch_impl.hh
index e7bf83b20..2b152e376 100644
--- a/src/cpu/o3/fetch_impl.hh
+++ b/src/cpu/o3/fetch_impl.hh
@@ -96,8 +96,7 @@ DefaultFetch<Impl>::IcachePort::recvRetry()
 
 template<class Impl>
 DefaultFetch<Impl>::DefaultFetch(Params *params)
-    : mem(params->mem),
-      branchPred(params),
+    : branchPred(params),
       decodeToFetchDelay(params->decodeToFetchDelay),
       renameToFetchDelay(params->renameToFetchDelay),
       iewToFetchDelay(params->iewToFetchDelay),
diff --git a/src/cpu/o3/mips/cpu_builder.cc b/src/cpu/o3/mips/cpu_builder.cc
index f1c3b33a5..ee9f2b48d 100644
--- a/src/cpu/o3/mips/cpu_builder.cc
+++ b/src/cpu/o3/mips/cpu_builder.cc
@@ -54,8 +54,6 @@ Param<int> activity;
 
 SimObjectVectorParam<Process *> workload;
 
-SimObjectParam<MemObject *> mem;
-
 SimObjectParam<BaseCPU *> checker;
 
 Param<Counter> max_insts_any_thread;
@@ -153,8 +151,6 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(DerivO3CPU)
 
     INIT_PARAM(workload, "Processes to run"),
 
-    INIT_PARAM(mem, "Memory"),
-
     INIT_PARAM_DFLT(checker, "Checker CPU", NULL),
 
     INIT_PARAM_DFLT(max_insts_any_thread,
@@ -284,8 +280,6 @@ CREATE_SIM_OBJECT(DerivO3CPU)
 
     params->workload = workload;
 
-    params->mem = mem;
-
     params->checker = checker;
 
     params->max_insts_any_thread = max_insts_any_thread;
diff --git a/src/cpu/o3/mips/cpu_impl.hh b/src/cpu/o3/mips/cpu_impl.hh
index e08741626..97116fd3e 100644
--- a/src/cpu/o3/mips/cpu_impl.hh
+++ b/src/cpu/o3/mips/cpu_impl.hh
@@ -58,24 +58,10 @@ MipsO3CPU<Impl>::MipsO3CPU(Params *params)
         if (i < params->workload.size()) {
             DPRINTF(O3CPU, "Workload[%i] process is %#x",
                     i, this->thread[i]);
-            this->thread[i] = new Thread(this, i, params->workload[i],
-                                         i, params->mem);
+            this->thread[i] = new Thread(this, i, params->workload[i], i);
 
             this->thread[i]->setStatus(ThreadContext::Suspended);
 
-
-            /* Use this port to for syscall emulation writes to memory. */
-            Port *mem_port;
-            TranslatingPort *trans_port;
-            trans_port = new TranslatingPort(csprintf("%s-%d-funcport",
-                                                      name(), i),
-                                             params->workload[i]->pTable,
-                                             false);
-            mem_port = params->mem->getPort("functional");
-            mem_port->setPeer(trans_port);
-            trans_port->setPeer(mem_port);
-            this->thread[i]->setMemPort(trans_port);
-
             //usedTids[i] = true;
             //threadMap[i] = i;
         } else {
@@ -83,7 +69,7 @@ MipsO3CPU<Impl>::MipsO3CPU(Params *params)
             //when scheduling threads to CPU
             Process* dummy_proc = NULL;
 
-            this->thread[i] = new Thread(this, i, dummy_proc, i, params->mem);
+            this->thread[i] = new Thread(this, i, dummy_proc, i);
             //usedTids[i] = false;
         }
 
diff --git a/src/cpu/o3/params.hh b/src/cpu/o3/params.hh
index 1c234bcd7..b487778c6 100755
--- a/src/cpu/o3/params.hh
+++ b/src/cpu/o3/params.hh
@@ -54,8 +54,6 @@ class O3Params : public BaseO3CPU::Params
     Process *process;
 #endif // FULL_SYSTEM
 
-    MemObject *mem;
-
     BaseCPU *checker;
 
     //
diff --git a/src/cpu/o3/thread_state.hh b/src/cpu/o3/thread_state.hh
index 5fe7bb94d..d8720b3ab 100644
--- a/src/cpu/o3/thread_state.hh
+++ b/src/cpu/o3/thread_state.hh
@@ -77,7 +77,7 @@ struct O3ThreadState : public ThreadState {
 
 #if FULL_SYSTEM
     O3ThreadState(O3CPU *_cpu, int _thread_num)
-        : ThreadState(-1, _thread_num),
+        : ThreadState(_cpu, -1, _thread_num),
           cpu(_cpu), inSyscall(0), trapPending(0)
     {
         if (cpu->params->profile) {
@@ -95,9 +95,8 @@ struct O3ThreadState : public ThreadState {
         profilePC = 3;
     }
 #else
-    O3ThreadState(O3CPU *_cpu, int _thread_num, Process *_process, int _asid,
-                  MemObject *mem)
-        : ThreadState(-1, _thread_num, _process, _asid, mem),
+    O3ThreadState(O3CPU *_cpu, int _thread_num, Process *_process, int _asid)
+        : ThreadState(_cpu, -1, _thread_num, _process, _asid),
           cpu(_cpu), inSyscall(0), trapPending(0)
     { }
 #endif
diff --git a/src/cpu/ozone/cpu.hh b/src/cpu/ozone/cpu.hh
index 70ec1d101..28ff8e9ba 100644
--- a/src/cpu/ozone/cpu.hh
+++ b/src/cpu/ozone/cpu.hh
@@ -368,8 +368,6 @@ class OzoneCPU : public BaseCPU
 
     virtual Port *getPort(const std::string &name, int idx);
 
-    MemObject *mem;
-
     FrontEnd *frontEnd;
 
     BackEnd *backEnd;
diff --git a/src/cpu/ozone/cpu_builder.cc b/src/cpu/ozone/cpu_builder.cc
index 730158258..39be9fd74 100644
--- a/src/cpu/ozone/cpu_builder.cc
+++ b/src/cpu/ozone/cpu_builder.cc
@@ -69,8 +69,6 @@ SimObjectVectorParam<Process *> workload;
 //SimObjectParam<PageTable *> page_table;
 #endif // FULL_SYSTEM
 
-SimObjectParam<MemObject *> mem;
-
 SimObjectParam<BaseCPU *> checker;
 
 Param<Counter> max_insts_any_thread;
@@ -191,8 +189,6 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(DerivOzoneCPU)
 //    INIT_PARAM(page_table, "Page table"),
 #endif // FULL_SYSTEM
 
-    INIT_PARAM_DFLT(mem, "Memory", NULL),
-
     INIT_PARAM_DFLT(checker, "Checker CPU", NULL),
 
     INIT_PARAM_DFLT(max_insts_any_thread,
@@ -350,7 +346,6 @@ CREATE_SIM_OBJECT(DerivOzoneCPU)
 //    params->pTable = page_table;
 #endif // FULL_SYSTEM
 
-    params->mem = mem;
     params->checker = checker;
     params->max_insts_any_thread = max_insts_any_thread;
     params->max_insts_all_threads = max_insts_all_threads;
diff --git a/src/cpu/ozone/cpu_impl.hh b/src/cpu/ozone/cpu_impl.hh
index bf547bf94..685bf3cb4 100644
--- a/src/cpu/ozone/cpu_impl.hh
+++ b/src/cpu/ozone/cpu_impl.hh
@@ -93,10 +93,10 @@ OzoneCPU<Impl>::OzoneCPU(Params *p)
 #if FULL_SYSTEM
     : BaseCPU(p), thread(this, 0), tickEvent(this, p->width),
 #else
-    : BaseCPU(p), thread(this, 0, p->workload[0], 0, p->mem),
+    : BaseCPU(p), thread(this, 0, p->workload[0], 0),
       tickEvent(this, p->width),
 #endif
-      mem(p->mem), comm(5, 5)
+      comm(5, 5)
 {
     frontEnd = new FrontEnd(p);
     backEnd = new BackEnd(p);
@@ -107,7 +107,6 @@ OzoneCPU<Impl>::OzoneCPU(Params *p)
 #if USE_CHECKER
         BaseCPU *temp_checker = p->checker;
         checker = dynamic_cast<Checker<DynInstPtr> *>(temp_checker);
-        checker->setMemory(mem);
 #if FULL_SYSTEM
         checker->setSystem(p->system);
 #endif
@@ -198,19 +197,7 @@ OzoneCPU<Impl>::OzoneCPU(Params *p)
     frontEnd->renameTable.copyFrom(thread.renameTable);
     backEnd->renameTable.copyFrom(thread.renameTable);
 
-#if !FULL_SYSTEM
-    /* Use this port to for syscall emulation writes to memory. */
-    Port *mem_port;
-    TranslatingPort *trans_port;
-    trans_port = new TranslatingPort(csprintf("%s-%d-funcport",
-                                              name(), 0),
-                                     p->workload[0]->pTable,
-                                     false);
-    mem_port = p->mem->getPort("functional");
-    mem_port->setPeer(trans_port);
-    trans_port->setPeer(mem_port);
-    thread.setMemPort(trans_port);
-#else
+#if FULL_SYSTEM
     Port *mem_port;
     FunctionalPort *phys_port;
     VirtualPort *virt_port;
diff --git a/src/cpu/ozone/front_end.hh b/src/cpu/ozone/front_end.hh
index 2bdca35b9..e09e4de9c 100644
--- a/src/cpu/ozone/front_end.hh
+++ b/src/cpu/ozone/front_end.hh
@@ -208,8 +208,6 @@ class FrontEnd
 
     IcachePort icachePort;
 
-    MemObject *mem;
-
     RequestPtr memReq;
 
     /** Mask to get a cache block's address. */
diff --git a/src/cpu/ozone/front_end_impl.hh b/src/cpu/ozone/front_end_impl.hh
index 60c954517..63cf0a952 100644
--- a/src/cpu/ozone/front_end_impl.hh
+++ b/src/cpu/ozone/front_end_impl.hh
@@ -91,7 +91,6 @@ template <class Impl>
 FrontEnd<Impl>::FrontEnd(Params *params)
     : branchPred(params),
       icachePort(this),
-      mem(params->mem),
       numInstsReady(params->frontEndLatency, 0),
       instBufferSize(0),
       maxInstBufferSize(params->maxInstBufferSize),
diff --git a/src/cpu/ozone/lw_lsq.hh b/src/cpu/ozone/lw_lsq.hh
index dc58a8285..7e6849668 100644
--- a/src/cpu/ozone/lw_lsq.hh
+++ b/src/cpu/ozone/lw_lsq.hh
@@ -239,8 +239,6 @@ class OzoneLWLSQ {
     /** Pointer to the back-end stage. */
     BackEnd *be;
 
-    MemObject *mem;
-
     class DcachePort : public Port
     {
       protected:
diff --git a/src/cpu/ozone/lw_lsq_impl.hh b/src/cpu/ozone/lw_lsq_impl.hh
index 1f3f18502..ee1968626 100644
--- a/src/cpu/ozone/lw_lsq_impl.hh
+++ b/src/cpu/ozone/lw_lsq_impl.hh
@@ -154,8 +154,6 @@ OzoneLWLSQ<Impl>::init(Params *params, unsigned maxLQEntries,
         SQIndices.push(i);
     }
 
-    mem = params->mem;
-
     usedPorts = 0;
     cachePorts = params->cachePorts;
 
diff --git a/src/cpu/ozone/simple_params.hh b/src/cpu/ozone/simple_params.hh
index 3f63d2e1d..3e554c812 100644
--- a/src/cpu/ozone/simple_params.hh
+++ b/src/cpu/ozone/simple_params.hh
@@ -61,8 +61,6 @@ class SimpleParams : public BaseCPU::Params
     //Page Table
     PageTable *pTable;
 
-    MemObject *mem;
-
     //
     // Caches
     //
diff --git a/src/cpu/ozone/thread_state.hh b/src/cpu/ozone/thread_state.hh
index 985e09b52..9a1584b4c 100644
--- a/src/cpu/ozone/thread_state.hh
+++ b/src/cpu/ozone/thread_state.hh
@@ -67,7 +67,7 @@ struct OzoneThreadState : public ThreadState {
 
 #if FULL_SYSTEM
     OzoneThreadState(CPUType *_cpu, int _thread_num)
-        : ThreadState(-1, _thread_num),
+        : ThreadState(_cpu, -1, _thread_num),
           intrflag(0), cpu(_cpu), inSyscall(0), trapPending(0)
     {
         if (cpu->params->profile) {
@@ -87,8 +87,8 @@ struct OzoneThreadState : public ThreadState {
     }
 #else
     OzoneThreadState(CPUType *_cpu, int _thread_num, Process *_process,
-                     int _asid, MemObject *mem)
-        : ThreadState(-1, _thread_num, _process, _asid, mem),
+                     int _asid)
+        : ThreadState(_cpu, -1, _thread_num, _process, _asid),
           cpu(_cpu), inSyscall(0), trapPending(0)
     {
         miscRegFile.clear();
diff --git a/src/cpu/simple/atomic.cc b/src/cpu/simple/atomic.cc
index 11e4d2acb..dace83ac0 100644
--- a/src/cpu/simple/atomic.cc
+++ b/src/cpu/simple/atomic.cc
@@ -72,15 +72,6 @@ AtomicSimpleCPU::getPort(const std::string &if_name, int idx)
 void
 AtomicSimpleCPU::init()
 {
-    //Create Memory Ports (conect them up)
-//    Port *mem_dport = mem->getPort("");
-//    dcachePort.setPeer(mem_dport);
-//    mem_dport->setPeer(&dcachePort);
-
-//    Port *mem_iport = mem->getPort("");
-//    icachePort.setPeer(mem_iport);
-//    mem_iport->setPeer(&icachePort);
-
     BaseCPU::init();
 #if FULL_SYSTEM
     for (int i = 0; i < threadContexts.size(); ++i) {
@@ -508,7 +499,6 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(AtomicSimpleCPU)
     Param<Counter> max_loads_any_thread;
     Param<Counter> max_loads_all_threads;
     Param<Tick> progress_interval;
-    SimObjectParam<MemObject *> mem;
     SimObjectParam<System *> system;
     Param<int> cpu_id;
 
@@ -541,7 +531,6 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(AtomicSimpleCPU)
     INIT_PARAM(max_loads_all_threads,
                "terminate when all threads have reached this load count"),
     INIT_PARAM(progress_interval, "Progress interval"),
-    INIT_PARAM(mem, "memory"),
     INIT_PARAM(system, "system object"),
     INIT_PARAM(cpu_id, "processor ID"),
 
@@ -579,7 +568,6 @@ CREATE_SIM_OBJECT(AtomicSimpleCPU)
     params->functionTraceStart = function_trace_start;
     params->width = width;
     params->simulate_stalls = simulate_stalls;
-    params->mem = mem;
     params->system = system;
     params->cpu_id = cpu_id;
 
diff --git a/src/cpu/simple/atomic.hh b/src/cpu/simple/atomic.hh
index 0edca9369..166a18127 100644
--- a/src/cpu/simple/atomic.hh
+++ b/src/cpu/simple/atomic.hh
@@ -87,7 +87,7 @@ class AtomicSimpleCPU : public BaseSimpleCPU
       public:
 
         CpuPort(const std::string &_name, AtomicSimpleCPU *_cpu)
-            : Port(_name), cpu(_cpu)
+            : Port(_name, _cpu), cpu(_cpu)
         { }
 
       protected:
diff --git a/src/cpu/simple/base.cc b/src/cpu/simple/base.cc
index 253d33243..47b3b938f 100644
--- a/src/cpu/simple/base.cc
+++ b/src/cpu/simple/base.cc
@@ -70,13 +70,13 @@ using namespace std;
 using namespace TheISA;
 
 BaseSimpleCPU::BaseSimpleCPU(Params *p)
-    : BaseCPU(p), mem(p->mem), thread(NULL)
+    : BaseCPU(p), thread(NULL)
 {
 #if FULL_SYSTEM
     thread = new SimpleThread(this, 0, p->system, p->itb, p->dtb);
 #else
     thread = new SimpleThread(this, /* thread_num */ 0, p->process,
-            /* asid */ 0, mem);
+            /* asid */ 0);
 #endif // !FULL_SYSTEM
 
     thread->setStatus(ThreadContext::Suspended);
diff --git a/src/cpu/simple/base.hh b/src/cpu/simple/base.hh
index af6b6f835..f382158dd 100644
--- a/src/cpu/simple/base.hh
+++ b/src/cpu/simple/base.hh
@@ -76,8 +76,6 @@ class BaseSimpleCPU : public BaseCPU
     typedef TheISA::FloatReg FloatReg;
     typedef TheISA::FloatRegBits FloatRegBits;
 
-    MemObject *mem;
-
   protected:
     Trace::InstRecord *traceData;
 
@@ -95,7 +93,6 @@ class BaseSimpleCPU : public BaseCPU
   public:
     struct Params : public BaseCPU::Params
     {
-        MemObject *mem;
 #if FULL_SYSTEM
         AlphaITB *itb;
         AlphaDTB *dtb;
diff --git a/src/cpu/simple/timing.cc b/src/cpu/simple/timing.cc
index fe6775ea4..9e1f091b5 100644
--- a/src/cpu/simple/timing.cc
+++ b/src/cpu/simple/timing.cc
@@ -660,7 +660,6 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(TimingSimpleCPU)
     Param<Counter> max_loads_any_thread;
     Param<Counter> max_loads_all_threads;
     Param<Tick> progress_interval;
-    SimObjectParam<MemObject *> mem;
     SimObjectParam<System *> system;
     Param<int> cpu_id;
 
@@ -693,7 +692,6 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(TimingSimpleCPU)
     INIT_PARAM(max_loads_all_threads,
                "terminate when all threads have reached this load count"),
     INIT_PARAM(progress_interval, "Progress interval"),
-    INIT_PARAM(mem, "memory"),
     INIT_PARAM(system, "system object"),
     INIT_PARAM(cpu_id, "processor ID"),
 
@@ -729,7 +727,6 @@ CREATE_SIM_OBJECT(TimingSimpleCPU)
     params->clock = clock;
     params->functionTrace = function_trace;
     params->functionTraceStart = function_trace_start;
-    params->mem = mem;
     params->system = system;
     params->cpu_id = cpu_id;
 
diff --git a/src/cpu/simple/timing.hh b/src/cpu/simple/timing.hh
index 577e13e40..408fa315e 100644
--- a/src/cpu/simple/timing.hh
+++ b/src/cpu/simple/timing.hh
@@ -79,7 +79,7 @@ class TimingSimpleCPU : public BaseSimpleCPU
       public:
 
         CpuPort(const std::string &_name, TimingSimpleCPU *_cpu, Tick _lat)
-            : Port(_name), cpu(_cpu), lat(_lat)
+            : Port(_name, _cpu), cpu(_cpu), lat(_lat)
         { }
 
       protected:
@@ -166,6 +166,8 @@ class TimingSimpleCPU : public BaseSimpleCPU
     PacketPtr ifetch_pkt;
     PacketPtr dcache_pkt;
 
+
+
     int cpu_id;
     Tick previousTick;
 
diff --git a/src/cpu/simple_thread.cc b/src/cpu/simple_thread.cc
index 4fc47c982..c89a13eef 100644
--- a/src/cpu/simple_thread.cc
+++ b/src/cpu/simple_thread.cc
@@ -62,7 +62,7 @@ using namespace std;
 SimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num, System *_sys,
                            AlphaITB *_itb, AlphaDTB *_dtb,
                            bool use_kernel_stats)
-    : ThreadState(-1, _thread_num), cpu(_cpu), system(_sys), itb(_itb),
+    : ThreadState(_cpu, -1, _thread_num), cpu(_cpu), system(_sys), itb(_itb),
       dtb(_dtb)
 
 {
@@ -106,19 +106,10 @@ SimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num, System *_sys,
 }
 #else
 SimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num,
-                         Process *_process, int _asid, MemObject* memobj)
-    : ThreadState(-1, _thread_num, _process, _asid, memobj),
+                         Process *_process, int _asid)
+    : ThreadState(_cpu, -1, _thread_num, _process, _asid),
       cpu(_cpu)
 {
-    /* Use this port to for syscall emulation writes to memory. */
-    Port *mem_port;
-    port = new TranslatingPort(csprintf("%s-%d-funcport",
-                                        cpu->name(), tid),
-                               process->pTable, false);
-    mem_port = memobj->getPort("functional");
-    mem_port->setPeer(port);
-    port->setPeer(mem_port);
-
     regs.clear();
     tc = new ProxyThreadContext<SimpleThread>(this);
 }
@@ -127,9 +118,9 @@ SimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num,
 
 SimpleThread::SimpleThread()
 #if FULL_SYSTEM
-    : ThreadState(-1, -1)
+    : ThreadState(NULL, -1, -1)
 #else
-    : ThreadState(-1, -1, NULL, -1, NULL)
+    : ThreadState(NULL, -1, -1, NULL, -1)
 #endif
 {
     tc = new ProxyThreadContext<SimpleThread>(this);
@@ -332,6 +323,25 @@ SimpleThread::delVirtPort(VirtualPort *vp)
     }
 }
 
+#else
+TranslatingPort *
+SimpleThread::getMemPort()
+{
+    if (port != NULL)
+        return port;
+
+    /* Use this port to for syscall emulation writes to memory. */
+    Port *dcache_port;
+    port = new TranslatingPort(csprintf("%s-%d-funcport",
+                                        cpu->name(), tid),
+                               process->pTable, false);
+    dcache_port = cpu->getPort("dcache_port");
+    assert(dcache_port != NULL);
+    dcache_port = dcache_port->getPeer();
+//    mem_port->setPeer(port);
+    port->setPeer(dcache_port);
+    return port;
+}
 
 #endif
 
diff --git a/src/cpu/simple_thread.hh b/src/cpu/simple_thread.hh
index fe22e6c43..f002cbdce 100644
--- a/src/cpu/simple_thread.hh
+++ b/src/cpu/simple_thread.hh
@@ -117,8 +117,7 @@ class SimpleThread : public ThreadState
                  AlphaITB *_itb, AlphaDTB *_dtb,
                  bool use_kernel_stats = true);
 #else
-    SimpleThread(BaseCPU *_cpu, int _thread_num, Process *_process, int _asid,
-                 MemObject *memobj);
+    SimpleThread(BaseCPU *_cpu, int _thread_num, Process *_process, int _asid);
 #endif
 
     SimpleThread();
@@ -174,6 +173,9 @@ class SimpleThread : public ThreadState
 
     bool simPalCheck(int palFunc);
 #else
+    // Override this function.
+    TranslatingPort *getMemPort();
+
     Fault translateInstReq(RequestPtr &req)
     {
         return process->pTable->translate(req);
diff --git a/src/cpu/thread_state.cc b/src/cpu/thread_state.cc
index e6ebcc525..f81b78147 100644
--- a/src/cpu/thread_state.cc
+++ b/src/cpu/thread_state.cc
@@ -29,8 +29,11 @@
  */
 
 #include "base/output.hh"
+#include "cpu/base.hh"
 #include "cpu/profile.hh"
 #include "cpu/thread_state.hh"
+#include "mem/port.hh"
+#include "mem/translating_port.hh"
 #include "sim/serialize.hh"
 
 #if FULL_SYSTEM
@@ -39,15 +42,16 @@
 #endif
 
 #if FULL_SYSTEM
-ThreadState::ThreadState(int _cpuId, int _tid)
-    : cpuId(_cpuId), tid(_tid), lastActivate(0), lastSuspend(0),
+ThreadState::ThreadState(BaseCPU *cpu, int _cpuId, int _tid)
+    : baseCpu(cpu), cpuId(_cpuId), tid(_tid), lastActivate(0), lastSuspend(0),
       profile(NULL), profileNode(NULL), profilePC(0), quiesceEvent(NULL),
+      physPort(NULL), virtPort(NULL),
       microPC(0), nextMicroPC(1), funcExeInst(0), storeCondFailures(0)
 #else
-ThreadState::ThreadState(int _cpuId, int _tid, Process *_process,
-                         short _asid, MemObject *mem)
-    : cpuId(_cpuId), tid(_tid), lastActivate(0), lastSuspend(0),
-      process(_process), asid(_asid),
+ThreadState::ThreadState(BaseCPU *cpu, int _cpuId, int _tid, Process *_process,
+                         short _asid)
+    : baseCpu(cpu), cpuId(_cpuId), tid(_tid), lastActivate(0), lastSuspend(0),
+      port(NULL), process(_process), asid(_asid),
       microPC(0), nextMicroPC(1), funcExeInst(0), storeCondFailures(0)
 #endif
 {
@@ -112,4 +116,31 @@ ThreadState::profileSample()
         profile->sample(profileNode, profilePC);
 }
 
+#else
+TranslatingPort *
+ThreadState::getMemPort()
+{
+    if (port != NULL)
+        return port;
+
+    /* Use this port to for syscall emulation writes to memory. */
+    Port *dcache_port, *func_mem_port;
+    port = new TranslatingPort(csprintf("%s-%d-funcport",
+                                        baseCpu->name(), tid),
+                               process->pTable, false);
+
+    dcache_port = baseCpu->getPort("dcache_port");
+    assert(dcache_port != NULL);
+
+    MemObject *mem_object = dcache_port->getPeer()->getOwner();
+    assert(mem_object != NULL);
+
+    func_mem_port = mem_object->getPort("functional");
+    assert(func_mem_port != NULL);
+
+    func_mem_port->setPeer(port);
+    port->setPeer(func_mem_port);
+
+    return port;
+}
 #endif
diff --git a/src/cpu/thread_state.hh b/src/cpu/thread_state.hh
index 60353760c..14673aabb 100644
--- a/src/cpu/thread_state.hh
+++ b/src/cpu/thread_state.hh
@@ -37,7 +37,6 @@
 
 #if !FULL_SYSTEM
 #include "mem/mem_object.hh"
-#include "mem/translating_port.hh"
 #include "sim/process.hh"
 #endif
 
@@ -50,7 +49,9 @@ namespace Kernel {
 };
 #endif
 
+class BaseCPU;
 class Checkpoint;
+class TranslatingPort;
 
 /**
  *  Struct for holding general thread state that is needed across CPU
@@ -62,10 +63,10 @@ struct ThreadState {
     typedef ThreadContext::Status Status;
 
 #if FULL_SYSTEM
-    ThreadState(int _cpuId, int _tid);
+    ThreadState(BaseCPU *cpu, int _cpuId, int _tid);
 #else
-    ThreadState(int _cpuId, int _tid, Process *_process,
-                short _asid, MemObject *mem);
+    ThreadState(BaseCPU *cpu, int _cpuId, int _tid, Process *_process,
+                short _asid);
 #endif
 
     void serialize(std::ostream &os);
@@ -105,7 +106,7 @@ struct ThreadState {
 #else
     Process *getProcessPtr() { return process; }
 
-    TranslatingPort *getMemPort() { return port; }
+    TranslatingPort *getMemPort();
 
     void setMemPort(TranslatingPort *_port) { port = _port; }
 
@@ -153,6 +154,9 @@ struct ThreadState {
   protected:
     ThreadContext::Status _status;
 
+    // Pointer to the base CPU.
+    BaseCPU *baseCpu;
+
     // ID of this context w.r.t. the System or Process object to which
     // it belongs.  For full-system mode, this is the system CPU ID.
     int cpuId;
diff --git a/src/dev/io_device.cc b/src/dev/io_device.cc
index 9671d77cc..a1285fefc 100644
--- a/src/dev/io_device.cc
+++ b/src/dev/io_device.cc
@@ -37,7 +37,7 @@
 
 
 PioPort::PioPort(PioDevice *dev, System *s, std::string pname)
-    : SimpleTimingPort(dev->name() + pname), device(dev)
+    : SimpleTimingPort(dev->name() + pname, dev), device(dev)
 { }
 
 
@@ -92,8 +92,8 @@ BasicPioDevice::addressRanges(AddrRangeList &range_list)
 
 
 DmaPort::DmaPort(DmaDevice *dev, System *s)
-    : Port(dev->name() + "-dmaport"), device(dev), sys(s), pendingCount(0),
-      actionInProgress(0), drainEvent(NULL)
+    : Port(dev->name() + "-dmaport", dev), device(dev), sys(s),
+      pendingCount(0), actionInProgress(0), drainEvent(NULL)
 { }
 
 bool
diff --git a/src/mem/bus.hh b/src/mem/bus.hh
index 9fb33b7c3..7ec7e6830 100644
--- a/src/mem/bus.hh
+++ b/src/mem/bus.hh
@@ -144,7 +144,7 @@ class Bus : public MemObject
 
         /** Constructor for the BusPort.*/
         BusPort(const std::string &_name, Bus *_bus, int _id)
-            : Port(_name), _onRetryList(false), bus(_bus), id(_id)
+            : Port(_name, _bus), _onRetryList(false), bus(_bus), id(_id)
         { }
 
         bool onRetryList()
diff --git a/src/mem/cache/base_cache.cc b/src/mem/cache/base_cache.cc
index 599958222..47d40a490 100644
--- a/src/mem/cache/base_cache.cc
+++ b/src/mem/cache/base_cache.cc
@@ -42,7 +42,7 @@ using namespace std;
 
 BaseCache::CachePort::CachePort(const std::string &_name, BaseCache *_cache,
                                 bool _isCpuSide)
-    : Port(_name), cache(_cache), isCpuSide(_isCpuSide)
+    : Port(_name, _cache), cache(_cache), isCpuSide(_isCpuSide)
 {
     blocked = false;
     waitingOnRetry = false;
diff --git a/src/mem/port.hh b/src/mem/port.hh
index b6eeb9db3..75afc04e6 100644
--- a/src/mem/port.hh
+++ b/src/mem/port.hh
@@ -58,6 +58,8 @@
 typedef std::list<Range<Addr> > AddrRangeList;
 typedef std::list<Range<Addr> >::iterator AddrRangeIter;
 
+class MemObject;
+
 /**
  * Ports are used to interface memory objects to
  * each other.  They will always come in pairs, and we refer to the other
@@ -81,10 +83,13 @@ class Port
         memory objects. */
     Port *peer;
 
+    /** A pointer to the MemObject that owns this port. This may not be set. */
+    MemObject *owner;
+
   public:
 
     Port()
-        : peer(NULL)
+        : peer(NULL), owner(NULL)
     { }
 
     /**
@@ -92,9 +97,11 @@ class Port
      *
      * @param _name Port name for DPRINTF output.  Should include name
      * of memory system object to which the port belongs.
+     * @param _owner Pointer to the MemObject that owns this port.
+     * Will not necessarily be set.
      */
-    Port(const std::string &_name)
-        : portName(_name), peer(NULL)
+    Port(const std::string &_name, MemObject *_owner = NULL)
+        : portName(_name), peer(NULL), owner(_owner)
     { }
 
     /** Return port name (for DPRINTF). */
@@ -112,16 +119,18 @@ class Port
     void setName(const std::string &name)
     { portName = name; }
 
-    /** Function to set the pointer for the peer port.
-        @todo should be called by the configuration stuff (python).
-    */
+    /** Function to set the pointer for the peer port. */
     void setPeer(Port *port);
 
-    /** Function to set the pointer for the peer port.
-        @todo should be called by the configuration stuff (python).
-    */
+    /** Function to get the pointer to the peer port. */
     Port *getPeer() { return peer; }
 
+    /** Function to set the owner of this port. */
+    void setOwner(MemObject *_owner) { owner = _owner; }
+
+    /** Function to return the owner of this port. */
+    MemObject *getOwner() { return owner; }
+
   protected:
 
     /** These functions are protected because they should only be
@@ -247,8 +256,8 @@ class Port
 class FunctionalPort : public Port
 {
   public:
-    FunctionalPort(const std::string &_name)
-        : Port(_name)
+    FunctionalPort(const std::string &_name, MemObject *_owner = NULL)
+        : Port(_name, _owner)
     {}
 
   protected:
diff --git a/src/mem/tport.hh b/src/mem/tport.hh
index 438ec56dc..3d28ea3e5 100644
--- a/src/mem/tport.hh
+++ b/src/mem/tport.hh
@@ -114,8 +114,8 @@ class SimpleTimingPort : public Port
 
   public:
 
-    SimpleTimingPort(std::string pname)
-        : Port(pname), sendEvent(this), drainEvent(NULL)
+    SimpleTimingPort(std::string pname, MemObject *_owner = NULL)
+        : Port(pname, _owner), sendEvent(this), drainEvent(NULL)
     {}
 
     /** Hook for draining timing accesses from the system.  The
diff --git a/tests/configs/o3-timing-mp.py b/tests/configs/o3-timing-mp.py
index 68631b3d2..331e2c569 100644
--- a/tests/configs/o3-timing-mp.py
+++ b/tests/configs/o3-timing-mp.py
@@ -71,7 +71,6 @@ system.l2c.mem_side = system.membus.port
 for cpu in cpus:
     cpu.addPrivateSplitL1Caches(L1(size = '32kB', assoc = 1),
                                 L1(size = '32kB', assoc = 4))
-    cpu.mem = cpu.dcache
     # connect cpu level-1 caches to shared level-2 cache
     cpu.connectMemPorts(system.toL2Bus)
 
diff --git a/tests/configs/o3-timing.py b/tests/configs/o3-timing.py
index 0dd7be506..a66cd436e 100644
--- a/tests/configs/o3-timing.py
+++ b/tests/configs/o3-timing.py
@@ -40,7 +40,6 @@ class MyCache(BaseCache):
 cpu = DerivO3CPU()
 cpu.addTwoLevelCacheHierarchy(MyCache(size = '128kB'), MyCache(size = '256kB'),
                               MyCache(size = '2MB'))
-cpu.mem = cpu.dcache
 
 system = System(cpu = cpu,
                 physmem = PhysicalMemory(),
diff --git a/tests/configs/simple-atomic-mp.py b/tests/configs/simple-atomic-mp.py
index eaa6ec66e..f9e4e2767 100644
--- a/tests/configs/simple-atomic-mp.py
+++ b/tests/configs/simple-atomic-mp.py
@@ -70,7 +70,6 @@ system.l2c.mem_side = system.membus.port
 for cpu in cpus:
     cpu.addPrivateSplitL1Caches(L1(size = '32kB', assoc = 1),
                                 L1(size = '32kB', assoc = 4))
-    cpu.mem = cpu.dcache
     # connect cpu level-1 caches to shared level-2 cache
     cpu.connectMemPorts(system.toL2Bus)
 
diff --git a/tests/configs/simple-atomic.py b/tests/configs/simple-atomic.py
index d35ac4ae0..a8a876994 100644
--- a/tests/configs/simple-atomic.py
+++ b/tests/configs/simple-atomic.py
@@ -34,6 +34,5 @@ system = System(cpu = AtomicSimpleCPU(cpu_id=0),
                 membus = Bus())
 system.physmem.port = system.membus.port
 system.cpu.connectMemPorts(system.membus)
-system.cpu.mem = system.physmem
 
 root = Root(system = system)
diff --git a/tests/configs/simple-timing-mp.py b/tests/configs/simple-timing-mp.py
index 8f9ab0dde..0d99d8714 100644
--- a/tests/configs/simple-timing-mp.py
+++ b/tests/configs/simple-timing-mp.py
@@ -70,7 +70,6 @@ system.l2c.mem_side = system.membus.port
 for cpu in cpus:
     cpu.addPrivateSplitL1Caches(L1(size = '32kB', assoc = 1),
                                 L1(size = '32kB', assoc = 4))
-    cpu.mem = cpu.dcache
     # connect cpu level-1 caches to shared level-2 cache
     cpu.connectMemPorts(system.toL2Bus)
 
diff --git a/tests/configs/simple-timing.py b/tests/configs/simple-timing.py
index 60190b47c..d7d505a5a 100644
--- a/tests/configs/simple-timing.py
+++ b/tests/configs/simple-timing.py
@@ -39,8 +39,6 @@ class MyCache(BaseCache):
 cpu = TimingSimpleCPU(cpu_id=0)
 cpu.addTwoLevelCacheHierarchy(MyCache(size = '128kB'), MyCache(size = '256kB'),
                               MyCache(size = '2MB'))
-cpu.mem = cpu.dcache
-cpu.mem = cpu.dcache
 system = System(cpu = cpu,
                 physmem = PhysicalMemory(),
                 membus = Bus())
diff --git a/tests/configs/tsunami-simple-atomic-dual.py b/tests/configs/tsunami-simple-atomic-dual.py
index 1e6c10243..4adb32868 100644
--- a/tests/configs/tsunami-simple-atomic-dual.py
+++ b/tests/configs/tsunami-simple-atomic-dual.py
@@ -36,6 +36,5 @@ system = FSConfig.makeLinuxAlphaSystem('atomic')
 system.cpu = cpus
 for c in cpus:
     c.connectMemPorts(system.membus)
-    c.mem = system.physmem
 
 root = Root(clock = '2GHz', system = system)
diff --git a/tests/configs/tsunami-simple-atomic.py b/tests/configs/tsunami-simple-atomic.py
index 623d285e4..653df9bb0 100644
--- a/tests/configs/tsunami-simple-atomic.py
+++ b/tests/configs/tsunami-simple-atomic.py
@@ -35,6 +35,5 @@ cpu = AtomicSimpleCPU(cpu_id=0)
 system = FSConfig.makeLinuxAlphaSystem('atomic')
 system.cpu = cpu
 cpu.connectMemPorts(system.membus)
-cpu.mem = system.physmem
 
 root = Root(clock = '2GHz', system = system)
diff --git a/tests/configs/tsunami-simple-timing-dual.py b/tests/configs/tsunami-simple-timing-dual.py
index 516495d18..bfd478969 100644
--- a/tests/configs/tsunami-simple-timing-dual.py
+++ b/tests/configs/tsunami-simple-timing-dual.py
@@ -36,6 +36,5 @@ system = FSConfig.makeLinuxAlphaSystem('timing')
 system.cpu = cpus
 for c in cpus:
     c.connectMemPorts(system.membus)
-    c.mem = system.physmem
 
 root = Root(clock = '2GHz', system = system)
diff --git a/tests/configs/tsunami-simple-timing.py b/tests/configs/tsunami-simple-timing.py
index 2edf5ac32..59401c040 100644
--- a/tests/configs/tsunami-simple-timing.py
+++ b/tests/configs/tsunami-simple-timing.py
@@ -35,6 +35,5 @@ cpu = TimingSimpleCPU(cpu_id=0)
 system = FSConfig.makeLinuxAlphaSystem('timing')
 system.cpu = cpu
 cpu.connectMemPorts(system.membus)
-cpu.mem = system.physmem
 
 root = Root(clock = '2GHz', system = system)