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-rw-r--r--src/cpu/o3/regfile.hh4
-rw-r--r--src/cpu/simple_thread.cc72
-rw-r--r--src/cpu/simple_thread.hh8
-rw-r--r--src/cpu/thread_state.cc43
-rw-r--r--src/cpu/thread_state.hh6
5 files changed, 91 insertions, 42 deletions
diff --git a/src/cpu/o3/regfile.hh b/src/cpu/o3/regfile.hh
index 6972f055f..b6677b4b1 100644
--- a/src/cpu/o3/regfile.hh
+++ b/src/cpu/o3/regfile.hh
@@ -86,10 +86,6 @@ class PhysRegFile
//The duplication is unfortunate but it's better than having
//different ways to access certain registers.
- //Add these in later when everything else is in place
-// void serialize(std::ostream &os);
-// void unserialize(Checkpoint *cp, const std::string &section);
-
/** Reads an integer register. */
uint64_t readIntReg(PhysRegIndex reg_idx)
{
diff --git a/src/cpu/simple_thread.cc b/src/cpu/simple_thread.cc
index db28b23e8..6255b3357 100644
--- a/src/cpu/simple_thread.cc
+++ b/src/cpu/simple_thread.cc
@@ -123,14 +123,31 @@ SimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num,
tc = new ProxyThreadContext<SimpleThread>(this);
}
-SimpleThread::SimpleThread(RegFile *regFile)
- : ThreadState(-1, -1, NULL, -1, NULL), cpu(NULL)
+#endif
+
+SimpleThread::SimpleThread(ThreadContext *oldContext)
+#if FULL_SYSTEM
+ : ThreadState(-1, -1)
+#else
+ : ThreadState(-1, -1, NULL, -1, NULL)
+#endif
{
- regs = *regFile;
tc = new ProxyThreadContext<SimpleThread>(this);
-}
+ regs.clear();
+
+ copyState(oldContext);
+#if FULL_SYSTEM
+ EndQuiesceEvent *quiesce = oldContext->getQuiesceEvent();
+ if (quiesce) {
+ quiesceEvent = quiesce;
+ }
+ Kernel::Statistics *stats = oldContext->getKernelStats();
+ if (stats) {
+ kernelStats = stats;
+ }
#endif
+}
SimpleThread::~SimpleThread()
{
@@ -147,13 +164,8 @@ SimpleThread::takeOverFrom(ThreadContext *oldContext)
assert(process == oldContext->getProcessPtr());
#endif
- // copy over functional state
- _status = oldContext->status();
- copyArchRegs(oldContext);
- cpuId = oldContext->readCpuId();
-#if !FULL_SYSTEM
- funcExeInst = oldContext->readFuncExeInst();
-#else
+ copyState(oldContext);
+#if FULL_SYSTEM
EndQuiesceEvent *quiesce = oldContext->getQuiesceEvent();
if (quiesce) {
// Point the quiesce event's TC at this TC so that it wakes up
@@ -171,42 +183,32 @@ SimpleThread::takeOverFrom(ThreadContext *oldContext)
}
void
+SimpleThread::copyState(ThreadContext *oldContext)
+{
+ // copy over functional state
+ _status = oldContext->status();
+ copyArchRegs(oldContext);
+ cpuId = oldContext->readCpuId();
+#if !FULL_SYSTEM
+ funcExeInst = oldContext->readFuncExeInst();
+#endif
+}
+
+void
SimpleThread::serialize(ostream &os)
{
- SERIALIZE_ENUM(_status);
+ ThreadState::serialize(os);
regs.serialize(os);
// thread_num and cpu_id are deterministic from the config
- SERIALIZE_SCALAR(funcExeInst);
- SERIALIZE_SCALAR(inst);
-
-#if FULL_SYSTEM
- Tick quiesceEndTick = 0;
- if (quiesceEvent->scheduled())
- quiesceEndTick = quiesceEvent->when();
- SERIALIZE_SCALAR(quiesceEndTick);
- if (kernelStats)
- kernelStats->serialize(os);
-#endif
}
void
SimpleThread::unserialize(Checkpoint *cp, const std::string &section)
{
- UNSERIALIZE_ENUM(_status);
+ ThreadState::unserialize(cp, section);
regs.unserialize(cp, section);
// thread_num and cpu_id are deterministic from the config
- UNSERIALIZE_SCALAR(funcExeInst);
- UNSERIALIZE_SCALAR(inst);
-
-#if FULL_SYSTEM
- Tick quiesceEndTick;
- UNSERIALIZE_SCALAR(quiesceEndTick);
- if (quiesceEndTick)
- quiesceEvent->schedule(quiesceEndTick);
- if (kernelStats)
- kernelStats->unserialize(cp, section);
-#endif
}
#if FULL_SYSTEM
diff --git a/src/cpu/simple_thread.hh b/src/cpu/simple_thread.hh
index de65e9891..ff2639e10 100644
--- a/src/cpu/simple_thread.hh
+++ b/src/cpu/simple_thread.hh
@@ -119,16 +119,18 @@ class SimpleThread : public ThreadState
#else
SimpleThread(BaseCPU *_cpu, int _thread_num, Process *_process, int _asid,
MemObject *memobj);
- // Constructor to use SimpleThread to pass reg file around. Not
- // used for anything else.
- SimpleThread(RegFile *regFile);
#endif
+
+ SimpleThread(ThreadContext *oldContext);
+
virtual ~SimpleThread();
virtual void takeOverFrom(ThreadContext *oldContext);
void regStats(const std::string &name);
+ void copyState(ThreadContext *oldContext);
+
void serialize(std::ostream &os);
void unserialize(Checkpoint *cp, const std::string &section);
diff --git a/src/cpu/thread_state.cc b/src/cpu/thread_state.cc
index 872678a41..6a96560f1 100644
--- a/src/cpu/thread_state.cc
+++ b/src/cpu/thread_state.cc
@@ -31,6 +31,12 @@
#include "base/output.hh"
#include "cpu/profile.hh"
#include "cpu/thread_state.hh"
+#include "sim/serialize.hh"
+
+#if FULL_SYSTEM
+#include "cpu/quiesce_event.hh"
+#include "kern/kernel_stats.hh"
+#endif
#if FULL_SYSTEM
ThreadState::ThreadState(int _cpuId, int _tid)
@@ -49,6 +55,43 @@ ThreadState::ThreadState(int _cpuId, int _tid, Process *_process,
numLoad = 0;
}
+void
+ThreadState::serialize(std::ostream &os)
+{
+ SERIALIZE_ENUM(_status);
+ // thread_num and cpu_id are deterministic from the config
+ SERIALIZE_SCALAR(funcExeInst);
+ SERIALIZE_SCALAR(inst);
+
+#if FULL_SYSTEM
+ Tick quiesceEndTick = 0;
+ if (quiesceEvent->scheduled())
+ quiesceEndTick = quiesceEvent->when();
+ SERIALIZE_SCALAR(quiesceEndTick);
+ if (kernelStats)
+ kernelStats->serialize(os);
+#endif
+}
+
+void
+ThreadState::unserialize(Checkpoint *cp, const std::string &section)
+{
+
+ UNSERIALIZE_ENUM(_status);
+ // thread_num and cpu_id are deterministic from the config
+ UNSERIALIZE_SCALAR(funcExeInst);
+ UNSERIALIZE_SCALAR(inst);
+
+#if FULL_SYSTEM
+ Tick quiesceEndTick;
+ UNSERIALIZE_SCALAR(quiesceEndTick);
+ if (quiesceEndTick)
+ quiesceEvent->schedule(quiesceEndTick);
+ if (kernelStats)
+ kernelStats->unserialize(cp, section);
+#endif
+}
+
#if FULL_SYSTEM
void
diff --git a/src/cpu/thread_state.hh b/src/cpu/thread_state.hh
index cb1449ac5..b03a2e2bb 100644
--- a/src/cpu/thread_state.hh
+++ b/src/cpu/thread_state.hh
@@ -49,6 +49,8 @@ namespace Kernel {
};
#endif
+class Checkpoint;
+
/**
* Struct for holding general thread state that is needed across CPU
* models. This includes things such as pointers to the process,
@@ -65,6 +67,10 @@ struct ThreadState {
short _asid, MemObject *mem);
#endif
+ void serialize(std::ostream &os);
+
+ void unserialize(Checkpoint *cp, const std::string &section);
+
void setCpuId(int id) { cpuId = id; }
int readCpuId() { return cpuId; }
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 05:27:05 +0000