summaryrefslogtreecommitdiff
path: root/src/cpu/o3/cpu.cc
diff options
context:
space:
mode:
Diffstat (limited to 'src/cpu/o3/cpu.cc')
-rw-r--r--src/cpu/o3/cpu.cc59
1 files changed, 27 insertions, 32 deletions
diff --git a/src/cpu/o3/cpu.cc b/src/cpu/o3/cpu.cc
index fb7739db8..c88146fa6 100644
--- a/src/cpu/o3/cpu.cc
+++ b/src/cpu/o3/cpu.cc
@@ -463,14 +463,13 @@ template <class Impl>
void
FullO3CPU<Impl>::insertThread(unsigned tid)
{
- DPRINTF(O3CPU,"[tid:%i] Initializing thread data");
+ DPRINTF(O3CPU,"[tid:%i] Initializing thread into CPU");
// Will change now that the PC and thread state is internal to the CPU
// and not in the ThreadContext.
-#if 0
#if FULL_SYSTEM
ThreadContext *src_tc = system->threadContexts[tid];
#else
- ThreadContext *src_tc = thread[tid];
+ ThreadContext *src_tc = tcBase(tid);
#endif
//Bind Int Regs to Rename Map
@@ -490,11 +489,14 @@ FullO3CPU<Impl>::insertThread(unsigned tid)
}
//Copy Thread Data Into RegFile
- this->copyFromTC(tid);
+ //this->copyFromTC(tid);
- //Set PC/NPC
- regFile.pc[tid] = src_tc->readPC();
- regFile.npc[tid] = src_tc->readNextPC();
+ //Set PC/NPC/NNPC
+ setPC(src_tc->readPC(), tid);
+ setNextPC(src_tc->readNextPC(), tid);
+#if THE_ISA != ALPHA_ISA
+ setNextNPC(src_tc->readNextNPC(), tid);
+#endif
src_tc->setStatus(ThreadContext::Active);
@@ -503,16 +505,19 @@ FullO3CPU<Impl>::insertThread(unsigned tid)
//Reset ROB/IQ/LSQ Entries
commit.rob->resetEntries();
iew.resetEntries();
-#endif
}
template <class Impl>
void
FullO3CPU<Impl>::removeThread(unsigned tid)
{
- DPRINTF(O3CPU,"[tid:%i] Removing thread data");
-#if 0
- //Unbind Int Regs from Rename Map
+ DPRINTF(O3CPU,"[tid:%i] Removing thread from CPU.");
+
+ // Copy Thread Data From RegFile
+ // If thread is suspended, it might be re-allocated
+ //this->copyToTC(tid);
+
+ // Unbind Int Regs from Rename Map
for (int ireg = 0; ireg < TheISA::NumIntRegs; ireg++) {
PhysRegIndex phys_reg = renameMap[tid].lookup(ireg);
@@ -520,7 +525,7 @@ FullO3CPU<Impl>::removeThread(unsigned tid)
freeList.addReg(phys_reg);
}
- //Unbind Float Regs from Rename Map
+ // Unbind Float Regs from Rename Map
for (int freg = 0; freg < TheISA::NumFloatRegs; freg++) {
PhysRegIndex phys_reg = renameMap[tid].lookup(freg);
@@ -528,27 +533,18 @@ FullO3CPU<Impl>::removeThread(unsigned tid)
freeList.addReg(phys_reg);
}
- //Copy Thread Data From RegFile
- /* Fix Me:
- * Do we really need to do this if we are removing a thread
- * in the sense that it's finished (exiting)? If the thread is just
- * being suspended we might...
- */
-// this->copyToTC(tid);
-
- //Squash Throughout Pipeline
+ // Squash Throughout Pipeline
fetch.squash(0,tid);
decode.squash(tid);
rename.squash(tid);
assert(iew.ldstQueue.getCount(tid) == 0);
- //Reset ROB/IQ/LSQ Entries
+ // Reset ROB/IQ/LSQ Entries
if (activeThreads.size() >= 1) {
commit.rob->resetEntries();
iew.resetEntries();
}
-#endif
}
@@ -656,7 +652,7 @@ template <class Impl>
void
FullO3CPU<Impl>::suspendContext(int tid)
{
- DPRINTF(O3CPU,"[tid: %i]: Suspended ...\n", tid);
+ DPRINTF(O3CPU,"[tid: %i]: Suspending Thread Context.\n", tid);
unscheduleTickEvent();
_status = Idle;
/*
@@ -676,27 +672,26 @@ template <class Impl>
void
FullO3CPU<Impl>::deallocateContext(int tid)
{
- DPRINTF(O3CPU,"[tid:%i]: Deallocating ...", tid);
-/*
+ DPRINTF(O3CPU,"[tid:%i]: Deallocating Thread Context", tid);
+
//Remove From Active List, if Active
- list<unsigned>::iterator isActive = find(
- activeThreads.begin(), activeThreads.end(), tid);
+ list<unsigned>::iterator thread_it =
+ find(activeThreads.begin(), activeThreads.end(), tid);
- if (isActive != activeThreads.end()) {
+ if (thread_it != activeThreads.end()) {
DPRINTF(O3CPU,"[tid:%i]: Removing from active threads list\n",
tid);
- activeThreads.erase(isActive);
+ activeThreads.erase(thread_it);
removeThread(tid);
}
-*/
}
template <class Impl>
void
FullO3CPU<Impl>::haltContext(int tid)
{
- DPRINTF(O3CPU,"[tid:%i]: Halted ...", tid);
+ DPRINTF(O3CPU,"[tid:%i]: Halting Thread Context", tid);
/*
//Remove From Active List, if Active
list<unsigned>::iterator isActive = find(