inorder-cleanup: remove unused thread functions
This commit is contained in:
Korey Sewell
parent
e1fcc64980
commit
d9eaa2fe21
4 changed files with 80 additions and 332 deletions
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@ -100,13 +100,9 @@ std::string InOrderCPU::eventNames[NumCPUEvents] =
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"DeactivateThread",
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"DeallocateThread",
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"SuspendThread",
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"DisableThreads",
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"EnableThreads",
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"DisableVPEs",
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"EnableVPEs",
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"Trap",
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"InstGraduated",
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"SquashAll",
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"SquashFromMemStall",
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"UpdatePCs"
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};
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@ -119,8 +115,6 @@ InOrderCPU::CPUEvent::process()
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cpu->activateThread(tid);
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break;
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//@TODO: Consider Implementing "Suspend Thread" as Separate from
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//Deallocate
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case ActivateNextReadyThread:
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cpu->activateNextReadyThread();
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break;
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@ -129,28 +123,12 @@ InOrderCPU::CPUEvent::process()
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cpu->deactivateThread(tid);
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break;
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case SuspendThread: // Suspend & Deallocate are same for now.
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cpu->suspendThread(tid);
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break;
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case DeallocateThread:
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cpu->deallocateThread(tid);
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break;
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case EnableVPEs:
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cpu->enableVPEs(vpe);
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break;
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case DisableVPEs:
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cpu->disableVPEs(tid, vpe);
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break;
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case EnableThreads:
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cpu->enableThreads(vpe);
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break;
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case DisableThreads:
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cpu->disableThreads(tid, vpe);
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case SuspendThread:
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cpu->suspendThread(tid);
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break;
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case SquashFromMemStall:
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@ -212,8 +190,7 @@ InOrderCPU::InOrderCPU(Params *params)
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#endif // DEBUG
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switchCount(0),
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deferRegistration(false/*params->deferRegistration*/),
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stageTracing(params->stageTracing),
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numVirtProcs(1)
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stageTracing(params->stageTracing)
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{
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ThreadID active_threads;
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cpu_params = params;
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@ -335,11 +312,10 @@ InOrderCPU::InOrderCPU(Params *params)
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memset(floatRegs.i[tid], 0, sizeof(floatRegs.i[tid]));
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isa[tid].clear();
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isa[tid].expandForMultithreading(numThreads, numVirtProcs);
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isa[tid].expandForMultithreading(numThreads, 1/*numVirtProcs*/);
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}
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lastRunningCycle = curTick;
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contextSwitch = false;
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// Define dummy instructions and resource requests to be used.
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dummyInst = new InOrderDynInst(this, NULL, 0, 0);
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@ -526,7 +502,7 @@ InOrderCPU::reset()
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{
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for (int i = 0; i < numThreads; i++) {
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isa[i].reset(coreType, numThreads,
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numVirtProcs, dynamic_cast<BaseCPU*>(this));
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1/*numVirtProcs*/, dynamic_cast<BaseCPU*>(this));
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}
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}
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@ -703,6 +679,20 @@ InOrderCPU::activateThread(ThreadID tid)
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}
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}
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void
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InOrderCPU::deactivateContext(ThreadID tid, int delay)
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{
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DPRINTF(InOrderCPU,"[tid:%i]: Deactivating ...\n", tid);
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scheduleCpuEvent(DeactivateThread, NoFault, tid, dummyInst, delay);
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// Be sure to signal that there's some activity so the CPU doesn't
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// deschedule itself.
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activityRec.activity();
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_status = Running;
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}
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void
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InOrderCPU::deactivateThread(ThreadID tid)
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{
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@ -722,6 +712,40 @@ InOrderCPU::deactivateThread(ThreadID tid)
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}
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}
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void
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InOrderCPU::deallocateContext(ThreadID tid, int delay)
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{
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DPRINTF(InOrderCPU,"[tid:%i]: Deallocating ...\n", tid);
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scheduleCpuEvent(DeallocateThread, NoFault, tid, dummyInst, delay);
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// Be sure to signal that there's some activity so the CPU doesn't
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// deschedule itself.
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activityRec.activity();
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_status = Running;
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}
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void
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InOrderCPU::deallocateThread(ThreadID tid)
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{
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DPRINTF(InOrderCPU, "[tid:%i]: Calling deallocate thread.\n", tid);
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if (isThreadActive(tid)) {
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DPRINTF(InOrderCPU,"[tid:%i]: Removing from active threads list\n",
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tid);
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list<ThreadID>::iterator thread_it =
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std::find(activeThreads.begin(), activeThreads.end(), tid);
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removePipelineStalls(*thread_it);
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activeThreads.erase(thread_it);
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}
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// TODO: "Un"Load/Unmap register file state
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}
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void
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InOrderCPU::removePipelineStalls(ThreadID tid)
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{
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@ -733,36 +757,6 @@ InOrderCPU::removePipelineStalls(ThreadID tid)
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}
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}
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bool
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InOrderCPU::isThreadInCPU(ThreadID tid)
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{
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list<ThreadID>::iterator isCurrent =
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std::find(currentThreads.begin(), currentThreads.end(), tid);
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return (isCurrent != currentThreads.end());
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}
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void
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InOrderCPU::addToCurrentThreads(ThreadID tid)
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{
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if (!isThreadInCPU(tid)) {
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DPRINTF(InOrderCPU, "Adding Thread %i to current threads list in CPU."
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"\n", tid);
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currentThreads.push_back(tid);
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}
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}
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void
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InOrderCPU::removeFromCurrentThreads(ThreadID tid)
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{
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if (isThreadInCPU(tid)) {
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DPRINTF(InOrderCPU,
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"Adding Thread %i to current threads list in CPU.\n", tid);
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list<ThreadID>::iterator isCurrent =
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std::find(currentThreads.begin(), currentThreads.end(), tid);
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currentThreads.erase(isCurrent);
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}
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}
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bool
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InOrderCPU::isThreadSuspended(ThreadID tid)
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@ -773,125 +767,6 @@ InOrderCPU::isThreadSuspended(ThreadID tid)
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return (isSuspended!= suspendedThreads.end());
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}
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void
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InOrderCPU::enableVirtProcElement(unsigned vpe)
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{
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DPRINTF(InOrderCPU, "[vpe:%i]: Scheduling "
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"Enabling of concurrent virtual processor execution",
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vpe);
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scheduleCpuEvent(EnableVPEs, NoFault, 0/*tid*/, dummyInst);
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}
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void
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InOrderCPU::enableVPEs(unsigned vpe)
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{
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DPRINTF(InOrderCPU, "[vpe:%i]: Enabling Concurrent Execution "
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"virtual processors %i", vpe);
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list<ThreadID>::iterator thread_it = currentThreads.begin();
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while (thread_it != currentThreads.end()) {
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if (!isThreadSuspended(*thread_it)) {
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activateThread(*thread_it);
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}
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thread_it++;
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}
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}
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void
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InOrderCPU::disableVirtProcElement(ThreadID tid, unsigned vpe)
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{
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DPRINTF(InOrderCPU, "[vpe:%i]: Scheduling "
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"Disabling of concurrent virtual processor execution",
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vpe);
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scheduleCpuEvent(DisableVPEs, NoFault, 0/*tid*/, dummyInst);
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}
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void
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InOrderCPU::disableVPEs(ThreadID tid, unsigned vpe)
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{
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DPRINTF(InOrderCPU, "[vpe:%i]: Disabling Concurrent Execution of "
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"virtual processors %i", vpe);
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unsigned base_vpe = TheISA::getVirtProcNum(tcBase(tid));
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list<ThreadID>::iterator thread_it = activeThreads.begin();
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vector<list<ThreadID>::iterator> removeList;
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while (thread_it != activeThreads.end()) {
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if (base_vpe != vpe) {
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removeList.push_back(thread_it);
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}
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thread_it++;
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}
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for (int i = 0; i < removeList.size(); i++) {
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activeThreads.erase(removeList[i]);
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}
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}
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void
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InOrderCPU::enableMultiThreading(unsigned vpe)
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{
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// Schedule event to take place at end of cycle
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DPRINTF(InOrderCPU, "[vpe:%i]: Scheduling Enable Multithreading on "
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"virtual processor %i", vpe);
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scheduleCpuEvent(EnableThreads, NoFault, 0/*tid*/, dummyInst);
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}
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void
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InOrderCPU::enableThreads(unsigned vpe)
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{
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DPRINTF(InOrderCPU, "[vpe:%i]: Enabling Multithreading on "
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"virtual processor %i", vpe);
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list<ThreadID>::iterator thread_it = currentThreads.begin();
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while (thread_it != currentThreads.end()) {
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if (TheISA::getVirtProcNum(tcBase(*thread_it)) == vpe) {
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if (!isThreadSuspended(*thread_it)) {
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activateThread(*thread_it);
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}
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}
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thread_it++;
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}
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}
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void
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InOrderCPU::disableMultiThreading(ThreadID tid, unsigned vpe)
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{
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// Schedule event to take place at end of cycle
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DPRINTF(InOrderCPU, "[tid:%i]: Scheduling Disable Multithreading on "
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"virtual processor %i", tid, vpe);
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scheduleCpuEvent(DisableThreads, NoFault, tid, dummyInst);
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}
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void
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InOrderCPU::disableThreads(ThreadID tid, unsigned vpe)
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{
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DPRINTF(InOrderCPU, "[tid:%i]: Disabling Multithreading on "
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"virtual processor %i", tid, vpe);
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list<ThreadID>::iterator thread_it = activeThreads.begin();
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vector<list<ThreadID>::iterator> removeList;
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while (thread_it != activeThreads.end()) {
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if (TheISA::getVirtProcNum(tcBase(*thread_it)) == vpe) {
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removeList.push_back(thread_it);
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}
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thread_it++;
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}
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for (int i = 0; i < removeList.size(); i++) {
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activeThreads.erase(removeList[i]);
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}
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}
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void
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InOrderCPU::updateThreadPriority()
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{
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@ -958,6 +833,12 @@ InOrderCPU::activateNextReadyContext(int delay)
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_status = Running;
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}
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void
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InOrderCPU::haltContext(ThreadID tid, int delay)
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{
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suspendContext(tid, delay);
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}
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void
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InOrderCPU::suspendContext(ThreadID tid, int delay)
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{
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@ -973,24 +854,6 @@ InOrderCPU::suspendThread(ThreadID tid)
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suspendedThreads.push_back(tid);
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}
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void
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InOrderCPU::deallocateContext(ThreadID tid, int delay)
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{
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scheduleCpuEvent(DeallocateThread, NoFault, tid, dummyInst, delay);
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}
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void
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InOrderCPU::deallocateThread(ThreadID tid)
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{
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DPRINTF(InOrderCPU,"[tid:%i]: Deallocating ...", tid);
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removeFromCurrentThreads(tid);
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deactivateThread(tid);
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squashThreadInPipeline(tid);
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}
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void
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InOrderCPU::squashThreadInPipeline(ThreadID tid)
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{
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@ -1000,45 +863,12 @@ InOrderCPU::squashThreadInPipeline(ThreadID tid)
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}
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}
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void
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InOrderCPU::haltContext(ThreadID tid, int delay)
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{
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DPRINTF(InOrderCPU, "[tid:%i]: Halt context called.\n", tid);
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// Halt is same thing as deallocate for now
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// @TODO: Differentiate between halt & deallocate in the CPU
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// model
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deallocateContext(tid, delay);
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}
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void
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InOrderCPU::insertThread(ThreadID tid)
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{
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panic("Unimplemented Function\n.");
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}
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void
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InOrderCPU::removeThread(ThreadID tid)
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{
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DPRINTF(InOrderCPU, "Removing Thread %i from CPU.\n", tid);
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/** Broadcast to CPU resources*/
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}
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PipelineStage*
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InOrderCPU::getPipeStage(int stage_num)
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{
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return pipelineStage[stage_num];
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}
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void
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InOrderCPU::activateWhenReady(ThreadID tid)
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{
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panic("Unimplemented Function\n.");
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}
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uint64_t
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InOrderCPU::readPC(ThreadID tid)
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{
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@ -179,10 +179,6 @@ class InOrderCPU : public BaseCPU
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DeactivateThread,
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DeallocateThread,
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SuspendThread,
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DisableThreads,
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EnableThreads,
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DisableVPEs,
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EnableVPEs,
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Trap,
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InstGraduated,
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SquashFromMemStall,
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@ -347,18 +343,6 @@ class InOrderCPU : public BaseCPU
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void trap(Fault fault, ThreadID tid, int delay = 0);
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void trapCPU(Fault fault, ThreadID tid);
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/** squashFromMemStall() - sets up a squash event
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* squashDueToMemStall() - squashes pipeline
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*/
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void squashFromMemStall(DynInstPtr inst, ThreadID tid, int delay = 0);
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void squashDueToMemStall(int stage_num, InstSeqNum seq_num, ThreadID tid);
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/** Setup CPU to insert a thread's context */
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void insertThread(ThreadID tid);
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/** Remove all of a thread's context from CPU */
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void removeThread(ThreadID tid);
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/** Add Thread to Active Threads List. */
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void activateContext(ThreadID tid, int delay = 0);
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void activateThread(ThreadID tid);
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@ -367,16 +351,28 @@ class InOrderCPU : public BaseCPU
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void activateNextReadyContext(int delay = 0);
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void activateNextReadyThread();
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/** Remove Thread from Active Threads List */
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/** Remove from Active Thread List */
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void deactivateContext(ThreadID tid, int delay = 0);
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void deactivateThread(ThreadID tid);
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/** Suspend Thread, Remove from Active Threads List, Add to Suspend List */
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void haltContext(ThreadID tid, int delay = 0);
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void suspendContext(ThreadID tid, int delay = 0);
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void suspendThread(ThreadID tid);
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/** Remove Thread from Active Threads List &&
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* Remove Thread Context from CPU.
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*/
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/** Remove Thread from Active Threads List, Remove Any Loaded Thread State */
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void deallocateContext(ThreadID tid, int delay = 0);
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void deallocateThread(ThreadID tid);
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void deactivateThread(ThreadID tid);
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/** squashFromMemStall() - sets up a squash event
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* squashDueToMemStall() - squashes pipeline
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*/
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void squashFromMemStall(DynInstPtr inst, ThreadID tid, int delay = 0);
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void squashDueToMemStall(int stage_num, InstSeqNum seq_num, ThreadID tid);
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void removePipelineStalls(ThreadID tid);
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void squashThreadInPipeline(ThreadID tid);
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void squashBehindMemStall(int stage_num, InstSeqNum seq_num, ThreadID tid);
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PipelineStage* getPipeStage(int stage_num);
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@ -387,37 +383,6 @@ class InOrderCPU : public BaseCPU
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return 0;
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}
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/** Remove Thread from Active Threads List &&
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* Remove Thread Context from CPU.
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*/
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void haltContext(ThreadID tid, int delay = 0);
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void removePipelineStalls(ThreadID tid);
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void squashThreadInPipeline(ThreadID tid);
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/// Notify the CPU to enable a virtual processor element.
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virtual void enableVirtProcElement(unsigned vpe);
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void enableVPEs(unsigned vpe);
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/// Notify the CPU to disable a virtual processor element.
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virtual void disableVirtProcElement(ThreadID tid, unsigned vpe);
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void disableVPEs(ThreadID tid, unsigned vpe);
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/// Notify the CPU that multithreading is enabled.
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virtual void enableMultiThreading(unsigned vpe);
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void enableThreads(unsigned vpe);
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/// Notify the CPU that multithreading is disabled.
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virtual void disableMultiThreading(ThreadID tid, unsigned vpe);
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void disableThreads(ThreadID tid, unsigned vpe);
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/** Activate a Thread When CPU Resources are Available. */
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void activateWhenReady(ThreadID tid);
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/** Add or Remove a Thread Context in the CPU. */
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void doContextSwitch();
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/** Update The Order In Which We Process Threads. */
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void updateThreadPriority();
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@ -615,21 +580,15 @@ class InOrderCPU : public BaseCPU
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/** Active Threads List */
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std::list<ThreadID> activeThreads;
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/** Current Threads List */
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std::list<ThreadID> currentThreads;
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/** Ready Threads List */
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std::list<ThreadID> readyThreads;
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/** Suspended Threads List */
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std::list<ThreadID> suspendedThreads;
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/** Thread Status Functions (Unused Currently) */
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bool isThreadInCPU(ThreadID tid);
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/** Thread Status Functions */
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bool isThreadActive(ThreadID tid);
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bool isThreadSuspended(ThreadID tid);
|
||||
void addToCurrentThreads(ThreadID tid);
|
||||
void removeFromCurrentThreads(ThreadID tid);
|
||||
|
||||
private:
|
||||
/** The activity recorder; used to tell if the CPU has any
|
||||
|
|
@ -643,7 +602,8 @@ class InOrderCPU : public BaseCPU
|
|||
ThreadID numActiveThreads() { return activeThreads.size(); }
|
||||
|
||||
/** Thread id of active thread
|
||||
* Only used for SwitchOnCacheMiss model. Assumes only 1 thread active
|
||||
* Only used for SwitchOnCacheMiss model.
|
||||
* Assumes only 1 thread active
|
||||
*/
|
||||
ThreadID activeThreadId()
|
||||
{
|
||||
|
|
@ -672,9 +632,6 @@ class InOrderCPU : public BaseCPU
|
|||
virtual void wakeup();
|
||||
#endif
|
||||
|
||||
/** Gets a free thread id. Use if thread ids change across system. */
|
||||
ThreadID getFreeTid();
|
||||
|
||||
// LL/SC debug functionality
|
||||
unsigned stCondFails;
|
||||
|
||||
|
|
@ -740,18 +697,9 @@ class InOrderCPU : public BaseCPU
|
|||
/** Per-Stage Instruction Tracing */
|
||||
bool stageTracing;
|
||||
|
||||
/** Is there a context switch pending? */
|
||||
bool contextSwitch;
|
||||
|
||||
/** Threads Scheduled to Enter CPU */
|
||||
std::list<int> cpuWaitList;
|
||||
|
||||
/** The cycle that the CPU was last running, used for statistics. */
|
||||
Tick lastRunningCycle;
|
||||
|
||||
/** Number of Virtual Processors the CPU can process */
|
||||
unsigned numVirtProcs;
|
||||
|
||||
/** Update Thread , used for statistic purposes*/
|
||||
inline void tickThreadStats();
|
||||
|
||||
|
|
|
|||
|
|
@ -583,30 +583,6 @@ InOrderDynInst::deallocateContext(int thread_num)
|
|||
this->cpu->deallocateContext(thread_num);
|
||||
}
|
||||
|
||||
void
|
||||
InOrderDynInst::enableVirtProcElement(unsigned vpe)
|
||||
{
|
||||
this->cpu->enableVirtProcElement(vpe);
|
||||
}
|
||||
|
||||
void
|
||||
InOrderDynInst::disableVirtProcElement(unsigned vpe)
|
||||
{
|
||||
this->cpu->disableVirtProcElement(threadNumber, vpe);
|
||||
}
|
||||
|
||||
void
|
||||
InOrderDynInst::enableMultiThreading(unsigned vpe)
|
||||
{
|
||||
this->cpu->enableMultiThreading(vpe);
|
||||
}
|
||||
|
||||
void
|
||||
InOrderDynInst::disableMultiThreading(unsigned vpe)
|
||||
{
|
||||
this->cpu->disableMultiThreading(threadNumber, vpe);
|
||||
}
|
||||
|
||||
template<class T>
|
||||
inline Fault
|
||||
InOrderDynInst::read(Addr addr, T &data, unsigned flags)
|
||||
|
|
|
|||
|
|
@ -515,12 +515,6 @@ class InOrderDynInst : public FastAlloc, public RefCounted
|
|||
////////////////////////////////////////////////////////////
|
||||
virtual void deallocateContext(int thread_num);
|
||||
|
||||
virtual void enableVirtProcElement(unsigned vpe);
|
||||
virtual void disableVirtProcElement(unsigned vpe);
|
||||
|
||||
virtual void enableMultiThreading(unsigned vpe);
|
||||
virtual void disableMultiThreading(unsigned vpe);
|
||||
|
||||
////////////////////////////////////////////////////////////
|
||||
//
|
||||
// PROGRAM COUNTERS - PC/NPC/NPC
|
||||
|
|
|
|||
Loading…
Reference in a new issue