#include "arch/locked_mem.hh"
#include "arch/utility.hh"
+#include "base/bigint.hh"
#include "cpu/exetrace.hh"
#include "cpu/simple/timing.hh"
-#include "mem/packet_impl.hh"
+#include "mem/packet.hh"
+#include "mem/packet_access.hh"
#include "sim/builder.hh"
#include "sim/system.hh"
}
Tick
-TimingSimpleCPU::CpuPort::recvAtomic(Packet *pkt)
+TimingSimpleCPU::CpuPort::recvAtomic(PacketPtr pkt)
{
panic("TimingSimpleCPU doesn't expect recvAtomic callback!");
return curTick;
}
void
-TimingSimpleCPU::CpuPort::recvFunctional(Packet *pkt)
+TimingSimpleCPU::CpuPort::recvFunctional(PacketPtr pkt)
{
//No internal storage to update, jusst return
return;
void
TimingSimpleCPU::CpuPort::recvStatusChange(Status status)
{
- if (status == RangeChange)
+ if (status == RangeChange) {
+ if (!snoopRangeSent) {
+ snoopRangeSent = true;
+ sendStatusChange(Port::RangeChange);
+ }
return;
+ }
panic("TimingSimpleCPU doesn't expect recvStatusChange callback!");
}
void
-TimingSimpleCPU::CpuPort::TickEvent::schedule(Packet *_pkt, Tick t)
+TimingSimpleCPU::CpuPort::TickEvent::schedule(PacketPtr _pkt, Tick t)
{
pkt = _pkt;
Event::schedule(t);
cpu_id(p->cpu_id)
{
_status = Idle;
+
+ icachePort.snoopRangeSent = false;
+ dcachePort.snoopRangeSent = false;
+
ifetch_pkt = dcache_pkt = NULL;
drainEvent = NULL;
fetchEvent = NULL;
TimingSimpleCPU::resume()
{
if (_status != SwitchedOut && _status != Idle) {
+ assert(system->getMemoryMode() == System::Timing);
+
// Delete the old event if it existed.
if (fetchEvent) {
if (fetchEvent->scheduled())
fetchEvent =
new EventWrapper<TimingSimpleCPU, &TimingSimpleCPU::fetch>(this, false);
- fetchEvent->schedule(curTick);
+ fetchEvent->schedule(nextCycle());
}
- assert(system->getMemoryMode() == System::Timing);
changeState(SimObject::Running);
previousTick = curTick;
}
void
TimingSimpleCPU::takeOverFrom(BaseCPU *oldCPU)
{
- BaseCPU::takeOverFrom(oldCPU);
+ BaseCPU::takeOverFrom(oldCPU, &icachePort, &dcachePort);
// if any of this CPU's ThreadContexts are active, mark the CPU as
// running and schedule its tick event.
if (_status != Running) {
_status = Idle;
}
-
- Port *peer;
- if (icachePort.getPeer() == NULL) {
- peer = oldCPU->getPort("icache_port")->getPeer();
- icachePort.setPeer(peer);
- } else {
- peer = icachePort.getPeer();
- }
- peer->setPeer(&icachePort);
-
- if (dcachePort.getPeer() == NULL) {
- peer = oldCPU->getPort("dcache_port")->getPeer();
- dcachePort.setPeer(peer);
- } else {
- peer = dcachePort.getPeer();
- }
- peer->setPeer(&dcachePort);
}
notIdleFraction++;
_status = Running;
+
// kick things off by initiating the fetch of the next instruction
fetchEvent =
new EventWrapper<TimingSimpleCPU, &TimingSimpleCPU::fetch>(this, false);
- fetchEvent->schedule(curTick + cycles(delay));
+ fetchEvent->schedule(nextCycle(curTick + cycles(delay)));
}
// Now do the access.
if (fault == NoFault) {
- Packet *pkt =
- new Packet(req, Packet::ReadReq, Packet::Broadcast);
+ PacketPtr pkt =
+ new Packet(req, MemCmd::ReadReq, Packet::Broadcast);
pkt->dataDynamic<T>(new T);
if (!dcachePort.sendTiming(pkt)) {
// memory system takes ownership of packet
dcache_pkt = NULL;
}
- }
- // This will need a new way to tell if it has a dcache attached.
- if (req->isUncacheable())
- recordEvent("Uncached Read");
+ // This will need a new way to tell if it has a dcache attached.
+ if (req->isUncacheable())
+ recordEvent("Uncached Read");
+ } else {
+ delete req;
+ }
return fault;
}
#ifndef DOXYGEN_SHOULD_SKIP_THIS
+template
+Fault
+TimingSimpleCPU::read(Addr addr, Twin64_t &data, unsigned flags);
+
+template
+Fault
+TimingSimpleCPU::read(Addr addr, Twin32_t &data, unsigned flags);
+
template
Fault
TimingSimpleCPU::read(Addr addr, uint64_t &data, unsigned flags);
new Request(/* asid */ 0, addr, sizeof(T), flags, thread->readPC(),
cpu_id, /* thread ID */ 0);
+ if (traceData) {
+ traceData->setAddr(req->getVaddr());
+ }
+
// translate to physical address
Fault fault = thread->translateDataWriteReq(req);
// Now do the access.
if (fault == NoFault) {
assert(dcache_pkt == NULL);
- dcache_pkt = new Packet(req, Packet::WriteReq, Packet::Broadcast);
+ if (req->isSwap())
+ dcache_pkt = new Packet(req, MemCmd::SwapReq, Packet::Broadcast);
+ else
+ dcache_pkt = new Packet(req, MemCmd::WriteReq, Packet::Broadcast);
dcache_pkt->allocate();
dcache_pkt->set(data);
if (req->isLocked()) {
do_access = TheISA::handleLockedWrite(thread, req);
}
+ if (req->isCondSwap()) {
+ assert(res);
+ req->setExtraData(*res);
+ }
if (do_access) {
if (!dcachePort.sendTiming(dcache_pkt)) {
dcache_pkt = NULL;
}
}
+ // This will need a new way to tell if it's hooked up to a cache or not.
+ if (req->isUncacheable())
+ recordEvent("Uncached Write");
+ } else {
+ delete req;
}
- // This will need a new way to tell if it's hooked up to a cache or not.
- if (req->isUncacheable())
- recordEvent("Uncached Write");
// If the write needs to have a fault on the access, consider calling
// changeStatus() and changing it to "bad addr write" or something.
#ifndef DOXYGEN_SHOULD_SKIP_THIS
+template
+Fault
+TimingSimpleCPU::write(Twin32_t data, Addr addr,
+ unsigned flags, uint64_t *res);
+
+template
+Fault
+TimingSimpleCPU::write(Twin64_t data, Addr addr,
+ unsigned flags, uint64_t *res);
+
template
Fault
TimingSimpleCPU::write(uint64_t data, Addr addr,
void
TimingSimpleCPU::fetch()
{
- checkForInterrupts();
+ if (!curStaticInst || !curStaticInst->isDelayedCommit())
+ checkForInterrupts();
Request *ifetch_req = new Request();
ifetch_req->setThreadContext(cpu_id, /* thread ID */ 0);
Fault fault = setupFetchRequest(ifetch_req);
- ifetch_pkt = new Packet(ifetch_req, Packet::ReadReq, Packet::Broadcast);
+ ifetch_pkt = new Packet(ifetch_req, MemCmd::ReadReq, Packet::Broadcast);
ifetch_pkt->dataStatic(&inst);
if (fault == NoFault) {
ifetch_pkt = NULL;
}
} else {
+ delete ifetch_req;
+ delete ifetch_pkt;
// fetch fault: advance directly to next instruction (fault handler)
advanceInst(fault);
}
void
-TimingSimpleCPU::completeIfetch(Packet *pkt)
+TimingSimpleCPU::completeIfetch(PacketPtr pkt)
{
// received a response from the icache: execute the received
// instruction
_status = Running;
- delete pkt->req;
- delete pkt;
-
numCycles += curTick - previousTick;
previousTick = curTick;
if (getState() == SimObject::Draining) {
+ delete pkt->req;
+ delete pkt;
+
completeDrain();
return;
}
postExecute();
advanceInst(fault);
}
+
+ delete pkt->req;
+ delete pkt;
}
void
}
bool
-TimingSimpleCPU::IcachePort::recvTiming(Packet *pkt)
+TimingSimpleCPU::IcachePort::recvTiming(PacketPtr pkt)
{
- // delay processing of returned data until next CPU clock edge
- Tick time = pkt->req->getTime();
- while (time < curTick)
- time += lat;
+ if (pkt->isResponse()) {
+ // delay processing of returned data until next CPU clock edge
+ Tick mem_time = pkt->req->getTime();
+ Tick next_tick = cpu->nextCycle(mem_time);
- if (time == curTick)
- cpu->completeIfetch(pkt);
- else
- tickEvent.schedule(pkt, time);
+ if (next_tick == curTick)
+ cpu->completeIfetch(pkt);
+ else
+ tickEvent.schedule(pkt, next_tick);
- return true;
+ return true;
+ }
+ else {
+ //Snooping a Coherence Request, do nothing
+ return true;
+ }
}
void
// waiting to transmit
assert(cpu->ifetch_pkt != NULL);
assert(cpu->_status == IcacheRetry);
- Packet *tmp = cpu->ifetch_pkt;
+ PacketPtr tmp = cpu->ifetch_pkt;
if (sendTiming(tmp)) {
cpu->_status = IcacheWaitResponse;
cpu->ifetch_pkt = NULL;
}
void
-TimingSimpleCPU::completeDataAccess(Packet *pkt)
+TimingSimpleCPU::completeDataAccess(PacketPtr pkt)
{
// received a response from the dcache: complete the load or store
// instruction
drainEvent->process();
}
+void
+TimingSimpleCPU::DcachePort::setPeer(Port *port)
+{
+ Port::setPeer(port);
+
+#if FULL_SYSTEM
+ // Update the ThreadContext's memory ports (Functional/Virtual
+ // Ports)
+ cpu->tcBase()->connectMemPorts();
+#endif
+}
+
bool
-TimingSimpleCPU::DcachePort::recvTiming(Packet *pkt)
+TimingSimpleCPU::DcachePort::recvTiming(PacketPtr pkt)
{
- // delay processing of returned data until next CPU clock edge
- Tick time = pkt->req->getTime();
- while (time < curTick)
- time += lat;
+ if (pkt->isResponse()) {
+ // delay processing of returned data until next CPU clock edge
+ Tick mem_time = pkt->req->getTime();
+ Tick next_tick = cpu->nextCycle(mem_time);
- if (time == curTick)
- cpu->completeDataAccess(pkt);
- else
- tickEvent.schedule(pkt, time);
+ if (next_tick == curTick)
+ cpu->completeDataAccess(pkt);
+ else
+ tickEvent.schedule(pkt, next_tick);
- return true;
+ return true;
+ }
+ else {
+ //Snooping a coherence req, do nothing
+ return true;
+ }
}
void
// waiting to transmit
assert(cpu->dcache_pkt != NULL);
assert(cpu->_status == DcacheRetry);
- Packet *tmp = cpu->dcache_pkt;
+ PacketPtr tmp = cpu->dcache_pkt;
if (sendTiming(tmp)) {
cpu->_status = DcacheWaitResponse;
// memory system takes ownership of packet
Param<Counter> max_loads_any_thread;
Param<Counter> max_loads_all_threads;
Param<Tick> progress_interval;
- SimObjectParam<MemObject *> mem;
SimObjectParam<System *> system;
Param<int> cpu_id;
#if FULL_SYSTEM
- SimObjectParam<AlphaITB *> itb;
- SimObjectParam<AlphaDTB *> dtb;
+ SimObjectParam<TheISA::ITB *> itb;
+ SimObjectParam<TheISA::DTB *> dtb;
Param<Tick> profile;
+
+ Param<bool> do_quiesce;
+ Param<bool> do_checkpoint_insts;
+ Param<bool> do_statistics_insts;
#else
SimObjectParam<Process *> workload;
#endif // FULL_SYSTEM
Param<int> clock;
+ Param<int> phase;
Param<bool> defer_registration;
Param<int> width;
INIT_PARAM(max_loads_all_threads,
"terminate when all threads have reached this load count"),
INIT_PARAM(progress_interval, "Progress interval"),
- INIT_PARAM(mem, "memory"),
INIT_PARAM(system, "system object"),
INIT_PARAM(cpu_id, "processor ID"),
INIT_PARAM(itb, "Instruction TLB"),
INIT_PARAM(dtb, "Data TLB"),
INIT_PARAM(profile, ""),
+ INIT_PARAM(do_quiesce, ""),
+ INIT_PARAM(do_checkpoint_insts, ""),
+ INIT_PARAM(do_statistics_insts, ""),
#else
INIT_PARAM(workload, "processes to run"),
#endif // FULL_SYSTEM
INIT_PARAM(clock, "clock speed"),
+ INIT_PARAM_DFLT(phase, "clock phase", 0),
INIT_PARAM(defer_registration, "defer system registration (for sampling)"),
INIT_PARAM(width, "cpu width"),
INIT_PARAM(function_trace, "Enable function trace"),
params->progress_interval = progress_interval;
params->deferRegistration = defer_registration;
params->clock = clock;
+ params->phase = phase;
params->functionTrace = function_trace;
params->functionTraceStart = function_trace_start;
- params->mem = mem;
params->system = system;
params->cpu_id = cpu_id;
params->itb = itb;
params->dtb = dtb;
params->profile = profile;
+ params->do_quiesce = do_quiesce;
+ params->do_checkpoint_insts = do_checkpoint_insts;
+ params->do_statistics_insts = do_statistics_insts;
#else
params->process = workload;
#endif
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