Merge ktlim@zizzer:/bk/newmem

into  zamp.eecs.umich.edu:/z/ktlim2/clean/tmp/test-regress

--HG--
extra : convert_revision : 3142f68356458ecd2677c30e9cf0a65005b782c2

SConstruct

@@ -344,7 +344,7 @@ sticky_opts.AddOptions(
     # values (more than one value) not to be able to be restored from
     # a saved option file.  If this causes trouble then upgrade to
     # scons 0.96.90 or later.
-    ListOption('CPU_MODELS', 'CPU models', 'AtomicSimpleCPU,TimingSimpleCPU',
+    ListOption('CPU_MODELS', 'CPU models', 'AtomicSimpleCPU,TimingSimpleCPU,O3CPU',
                env['ALL_CPU_LIST']),
     BoolOption('ALPHA_TLASER',
                'Model Alpha TurboLaser platform (vs. Tsunami)', False),

src/cpu/o3/cpu.cc

@@ -497,8 +497,6 @@ FullO3CPU<Impl>::init()
         }
 
 #if FULL_SYSTEM
-        src_tc->init();
-
         TheISA::initCPU(src_tc, src_tc->readCpuId());
 #endif
     }
@@ -554,6 +552,12 @@ template <class Impl>
 void
 FullO3CPU<Impl>::activateContext(int tid, int delay)
 {
+#if FULL_SYSTEM
+    // Connect the ThreadContext's memory ports (Functional/Virtual
+    // Ports)
+    threadContexts[tid]->connectMemPorts();
+#endif
+
     // Needs to set each stage to running as well.
     if (delay){
         DPRINTF(O3CPU, "[tid:%i]: Scheduling thread context to activate "

src/cpu/o3/thread_context.hh

@@ -92,7 +92,7 @@ class O3ThreadContext : public ThreadContext
 
     void delVirtPort(VirtualPort *vp);
 
-    virtual void init() { thread->init(); }
+    virtual void connectMemPorts() { thread->connectMemPorts(); }
 #else
     virtual TranslatingPort *getMemPort() { return thread->getMemPort(); }
 

src/cpu/o3/thread_context_impl.hh

@@ -101,8 +101,10 @@ template <class Impl>
 void
 O3ThreadContext<Impl>::delVirtPort(VirtualPort *vp)
 {
-    delete vp->getPeer();
-    delete vp;
+    if (vp != thread->getVirtPort()) {
+        delete vp->getPeer();
+        delete vp;
+    }
 }
 #endif
 

src/cpu/simple/atomic.cc

@@ -77,9 +77,6 @@ AtomicSimpleCPU::init()
     for (int i = 0; i < threadContexts.size(); ++i) {
         ThreadContext *tc = threadContexts[i];
 
-        // initialize the mem pointers
-        tc->init();
-
         // initialize CPU, including PC
         TheISA::initCPU(tc, tc->readCpuId());
     }
@@ -240,6 +237,13 @@ AtomicSimpleCPU::activateContext(int thread_num, int delay)
     assert(!tickEvent.scheduled());
 
     notIdleFraction++;
+
+#if FULL_SYSTEM
+    // Connect the ThreadContext's memory ports (Functional/Virtual
+    // Ports)
+    tc->connectMemPorts();
+#endif
+
     //Make sure ticks are still on multiples of cycles
     tickEvent.schedule(nextCycle(curTick + cycles(delay)));
     _status = Running;

src/cpu/simple/timing.cc

@@ -59,9 +59,6 @@ TimingSimpleCPU::init()
     for (int i = 0; i < threadContexts.size(); ++i) {
         ThreadContext *tc = threadContexts[i];
 
-        // initialize the mem pointers
-        tc->init();
-
         // initialize CPU, including PC
         TheISA::initCPU(tc, tc->readCpuId());
     }
@@ -241,6 +238,13 @@ TimingSimpleCPU::activateContext(int thread_num, int delay)
 
     notIdleFraction++;
     _status = Running;
+
+#if FULL_SYSTEM
+    // Connect the ThreadContext's memory ports (Functional/Virtual
+    // Ports)
+    tc->connectMemPorts();
+#endif
+
     // kick things off by initiating the fetch of the next instruction
     fetchEvent =
         new EventWrapper<TimingSimpleCPU, &TimingSimpleCPU::fetch>(this, false);

src/cpu/thread_context.hh

@@ -134,7 +134,7 @@ class ThreadContext
 
     virtual void delVirtPort(VirtualPort *vp) = 0;
 
-    virtual void init() = 0;
+    virtual void connectMemPorts() = 0;
 #else
     virtual TranslatingPort *getMemPort() = 0;
 
@@ -308,7 +308,7 @@ class ProxyThreadContext : public ThreadContext
 
     void delVirtPort(VirtualPort *vp) { return actualTC->delVirtPort(vp); }
 
-    void init() {actualTC->init(); }
+    void connectMemPorts() { actualTC->connectMemPorts(); }
 #else
     TranslatingPort *getMemPort() { return actualTC->getMemPort(); }
 

src/cpu/thread_state.cc

@@ -113,23 +113,29 @@ ThreadState::unserialize(Checkpoint *cp, const std::string &section)
 
 #if FULL_SYSTEM
 void
-ThreadState::init()
+ThreadState::connectMemPorts()
 {
-    initPhysPort();
-    initVirtPort();
+    connectPhysPort();
+    connectVirtPort();
 }
 
 void
-ThreadState::initPhysPort()
+ThreadState::connectPhysPort()
 {
+    // @todo: For now this disregards any older port that may have
+    // already existed.  Fix this memory leak once the bus port IDs
+    // for functional ports is resolved.
     physPort = new FunctionalPort(csprintf("%s-%d-funcport",
                                            baseCpu->name(), tid));
     connectToMemFunc(physPort);
 }
 
 void
-ThreadState::initVirtPort()
+ThreadState::connectVirtPort()
 {
+    // @todo: For now this disregards any older port that may have
+    // already existed.  Fix this memory leak once the bus port IDs
+    // for functional ports is resolved.
     virtPort = new VirtualPort(csprintf("%s-%d-vport",
                                         baseCpu->name(), tid));
     connectToMemFunc(virtPort);

src/cpu/thread_state.hh

@@ -91,11 +91,11 @@ struct ThreadState {
     Tick readLastSuspend() { return lastSuspend; }
 
 #if FULL_SYSTEM
-    void init();
+    void connectMemPorts();
 
-    void initPhysPort();
+    void connectPhysPort();
 
-    void initVirtPort();
+    void connectVirtPort();
 
     void dumpFuncProfile();