X86: Set up a named constant for the "fold bit" for int register indices.

[gem5.git] / src / cpu / thread_state.cc

diff --git a/src/cpu/thread_state.cc b/src/cpu/thread_state.cc
index a6fff5fc3d5fc8cf3f4b5851fcecec76d7bc704d..c62a7a3beba1957f6b9ada599f861b903674dfa4 100644 (file)
--- a/src/cpu/thread_state.cc
+++ b/src/cpu/thread_state.cc
@@ -37,26 +37,26 @@
 #include "sim/serialize.hh"
 
 #if FULL_SYSTEM
+#include "arch/kernel_stats.hh"
 #include "cpu/quiesce_event.hh"
-#include "kern/kernel_stats.hh"
+#include "mem/vport.hh"
 #endif
 
 #if FULL_SYSTEM
-ThreadState::ThreadState(BaseCPU *cpu, int _cpuId, int _tid)
-    : baseCpu(cpu), cpuId(_cpuId), tid(_tid), lastActivate(0), lastSuspend(0),
+ThreadState::ThreadState(BaseCPU *cpu, ThreadID _tid)
+#else
+ThreadState::ThreadState(BaseCPU *cpu, ThreadID _tid, Process *_process)
+#endif
+    : numInst(0), numLoad(0), _status(ThreadContext::Halted),
+      baseCpu(cpu), _threadId(_tid), lastActivate(0), lastSuspend(0),
+#if FULL_SYSTEM
       profile(NULL), profileNode(NULL), profilePC(0), quiesceEvent(NULL),
-      physPort(NULL), virtPort(NULL),
-      microPC(0), nextMicroPC(1), funcExeInst(0), storeCondFailures(0)
+      kernelStats(NULL), physPort(NULL), virtPort(NULL),
 #else
-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)
+      port(NULL), process(_process),
 #endif
+      funcExeInst(0), storeCondFailures(0)
 {
-    numInst = 0;
-    numLoad = 0;
 }
 
 ThreadState::~ThreadState()
@@ -76,8 +76,6 @@ ThreadState::serialize(std::ostream &os)
     // thread_num and cpu_id are deterministic from the config
     SERIALIZE_SCALAR(funcExeInst);
     SERIALIZE_SCALAR(inst);
-    SERIALIZE_SCALAR(microPC);
-    SERIALIZE_SCALAR(nextMicroPC);
 
 #if FULL_SYSTEM
     Tick quiesceEndTick = 0;
@@ -97,20 +95,52 @@ ThreadState::unserialize(Checkpoint *cp, const std::string &section)
     // thread_num and cpu_id are deterministic from the config
     UNSERIALIZE_SCALAR(funcExeInst);
     UNSERIALIZE_SCALAR(inst);
-    UNSERIALIZE_SCALAR(microPC);
-    UNSERIALIZE_SCALAR(nextMicroPC);
 
 #if FULL_SYSTEM
     Tick quiesceEndTick;
     UNSERIALIZE_SCALAR(quiesceEndTick);
     if (quiesceEndTick)
-        quiesceEvent->schedule(quiesceEndTick);
+        baseCpu->schedule(quiesceEvent, quiesceEndTick);
     if (kernelStats)
         kernelStats->unserialize(cp, section);
 #endif
 }
 
 #if FULL_SYSTEM
+void
+ThreadState::connectMemPorts(ThreadContext *tc)
+{
+    connectPhysPort();
+    connectVirtPort(tc);
+}
+
+void
+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.
+    if (physPort)
+        physPort->removeConn();
+    else
+        physPort = new FunctionalPort(csprintf("%s-%d-funcport",
+                                           baseCpu->name(), _threadId));
+    connectToMemFunc(physPort);
+}
+
+void
+ThreadState::connectVirtPort(ThreadContext *tc)
+{
+    // @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.
+    if (virtPort)
+        virtPort->removeConn();
+    else
+        virtPort = new VirtualPort(csprintf("%s-%d-vport",
+                                        baseCpu->name(), _threadId), tc);
+    connectToMemFunc(virtPort);
+}
 
 void
 ThreadState::profileClear()
@@ -134,21 +164,17 @@ ThreadState::getMemPort()
         return port;
 
     /* Use this port to for syscall emulation writes to memory. */
-    port = new TranslatingPort(csprintf("%s-%d-funcport",
-                                        baseCpu->name(), tid),
-                               process->pTable, false);
+    port = new TranslatingPort(csprintf("%s-%d-funcport", baseCpu->name(), _threadId),
+                               process, TranslatingPort::NextPage);
 
-    Port *func_port = getMemFuncPort();
-
-    func_port->setPeer(port);
-    port->setPeer(func_port);
+    connectToMemFunc(port);
 
     return port;
 }
 #endif
 
-Port *
-ThreadState::getMemFuncPort()
+void
+ThreadState::connectToMemFunc(Port *port)
 {
     Port *dcache_port, *func_mem_port;
 
@@ -161,5 +187,6 @@ ThreadState::getMemFuncPort()
     func_mem_port = mem_object->getPort("functional");
     assert(func_mem_port != NULL);
 
-    return func_mem_port;
+    func_mem_port->setPeer(port);
+    port->setPeer(func_mem_port);
 }