Tick BridgeClassicToAMBATLM2<BUSWIDTH>::recvAtomic(PacketPtr pkt)
{
tlm::tlm_generic_payload trans;
// std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " request from GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize() << std::endl;
if (pkt->memInhibitAsserted()) {
return 0;
}
if (pkt->cmd == MemCmd::SwapReq)
{
panic("SwapReq not supported\n");
}
else if (pkt->isRead())
{
assert(!pkt->isWrite());
if (pkt->isLLSC()) {
trackLoadLocked(pkt);
}
// if (pkt->isLLSC())
// {
// panic("isLLSC not yet supported for atomic\n");
// }
trans.set_read();
trans.set_address(pkt->getAddr());
trans.set_data_length(pkt->getSize());
trans.set_data_ptr(pkt->getPtr<unsigned char>());
debug_port->transport_dbg(static_cast<tlm::tlm_generic_payload &>(trans));
unsigned char * data = pkt->getPtr<unsigned char>();
// std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " sending a READ response to GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize();
// std::cout << hex << " and data= [";
// for(unsigned j=0;j<pkt->getSize(); j++)
// std::cout << "0x" << uint32_t(data[j]) << ",";
// std::cout << "]" << dec << std::endl;
}
else if (pkt->isWrite())
{
// std::cout << "isWrite " << std::endl;
if (writeOK(pkt))
{
trans.set_write();
/*if (writeOK(pkt)) {
if (pmemAddr)
memcpy(hostAddr, pkt->getPtr<uint8_t>(), pkt->getSize());
assert(!pkt->req->isInstFetch());
}*/
trans.set_address(pkt->getAddr());
trans.set_data_length(pkt->getSize());
trans.set_data_ptr(pkt->getPtr<unsigned char>());
debug_port->transport_dbg(static_cast<tlm::tlm_generic_payload &>(trans));
}
else
std::cout << "recvAtomic !writeOK " << hex << pkt->getAddr() << dec << std::endl;
}
else if (pkt->isInvalidate())
{
//upgrade or invalidate
if (pkt->needsResponse())
{
pkt->makeAtomicResponse();
}
}
else
{
panic("unimplemented");
}
if (pkt->needsResponse())
{
pkt->makeAtomicResponse();
}
return 1000;
}
bool BridgeClassicToAMBATLM2<BUSWIDTH>::recvTimingReq(PacketPtr pkt)
{
amba::amba_id * m_id;
amba::amba_burst_size * m_burst_size;
amba::amba_exclusive * m_exclusive;
sc_core::sc_time delay= sc_core::SC_ZERO_TIME;
std::ostringstream msg;
msg.str("");
tlm::tlm_generic_payload* current_trans;
//DPRINTF(BusBridge, "recvTiming: src %d dest %d addr 0x%x\n",pkt->getSrc(), pkt->getDest(), pkt->getAddr());
#ifdef DEBUG
if (_trace_transactions)
{
if (pkt->cmd == MemCmd::ReadReq)
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " received a READ request from GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize() << std::endl;
else if (pkt->cmd == MemCmd::ReadExReq)
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " received a READ EXCLUSIVE request from GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize() << std::endl;
else if (pkt->cmd == MemCmd::WriteReq)
{
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " received a WRITE request from GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize();
std::cout << hex << " and data= [";
for(unsigned j=0;j<pkt->getSize(); j++)
std::cout << "0x" << uint32_t(pkt->getPtr<uint8_t>()[j]) << ",";
std::cout << "]" << dec << std::endl;
}
else if (pkt->cmd == MemCmd::Writeback)
{
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " received a WRITEBACK request from GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize();
std::cout << hex << " and data= [";
for(unsigned j=0;j<pkt->getSize(); j++)
std::cout << "0x" << uint32_t(pkt->getPtr<uint8_t>()[j]) << ",";
std::cout << "]" << dec << std::endl;
}
else if ((pkt->cmd == MemCmd::UpgradeReq) || (pkt->cmd == MemCmd::SCUpgradeReq))
{
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " received an UPGRADE request from GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize() << std::endl;
}
else if (pkt->cmd == MemCmd::SwapReq)
{
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " received a SWAP request from GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize() << std::endl;
}
else if (pkt->cmd == MemCmd::LoadLockedReq)
{
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " received an exclusive LOAD request from GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize() << std::endl;
}
else if (pkt->cmd == MemCmd::StoreCondReq)
{
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " received a STORE CONDITIONAL request from GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize() << std::endl;
}
else if (pkt->cmd == MemCmd::SwapReq)
{
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " received a SWAP request from GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize() << std::endl;
}
else
{
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " received an UNKNOWN request from GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize() << std::endl;
}
if (pkt->memInhibitAsserted())
{
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " request from GEM5 was inhibited" << std::endl;
}
}
#endif
if (pkt->memInhibitAsserted())
{
return true;
}
if (pkt->cmd == MemCmd::ReadReq || pkt->cmd == MemCmd::ReadExReq || pkt->cmd == MemCmd::WriteReq || pkt->cmd == MemCmd::Writeback || pkt->cmd == MemCmd::LoadLockedReq || pkt->cmd == MemCmd::StoreCondReq)
{
if (pkt->isWrite() && (writeDataQueue.num_free() == 0))
{
needWrRetry=true;
return false;
}
// find a free id
uint32_t id=10000;
uint32_t mstid;
if (pkt->req->hasContextId())
{
mstid=pkt->req->contextId();
}
else
{
mstid=0; // Eagle L2 Buffer and ACP requests alias to CPU0 since there are only 4 mstids allocated to Eagle
}
if (pkt->isRead())
{
for (uint32_t i=(mstid*16);i<(mstid*16)+16;i++)
{
if (rd_packets[i] == NULL)
{
id=i;
break;
}
}
if (id == 10000)
{
needRdIdRetry=true;
return false;
}
}
else
{
for (uint32_t i=(mstid*16);i<(mstid*16)+16;i++)
{
if (wr_packets[i] == NULL)
{
id=i;
break;
}
}
if (id == 10000)
{
needWrIdRetry=true;
return false;
}
}
current_trans =master_sock.get_transaction(); //get a memory managed transaction from the pool.
current_trans->set_address(pkt->getAddr());
current_trans->set_data_length(pkt->getSize());
master_sock.reserve_data_size(*current_trans, pkt->getSize()); //reserve the requested amount of data array bytes
current_trans->set_streaming_width(BUSWIDTH-(pkt->getAddr()%BUSWIDTH));
current_trans->set_command(pkt->isRead()?tlm::TLM_READ_COMMAND:tlm::TLM_WRITE_COMMAND);
if (pkt->cmd == MemCmd::LoadLockedReq || pkt->cmd == MemCmd::StoreCondReq)
{
master_sock.template get_extension<amba::amba_exclusive>(m_exclusive,*current_trans);
m_exclusive->value=false;
master_sock.template validate_extension<amba::amba_exclusive>(*current_trans);
}
if (pkt->req->isUncacheable())
master_sock.template invalidate_extension<amba::amba_cacheable>(*current_trans);
else
master_sock.template validate_extension<amba::amba_cacheable>(*current_trans);
if (pkt->req->isInstFetch()) master_sock.template validate_extension<amba::amba_instruction>(*current_trans);
master_sock.template get_extension<amba::amba_burst_size>(m_burst_size,*current_trans);
m_burst_size->value=(BUSWIDTH/8); //buswidth is in bits
master_sock.template validate_extension<amba::amba_burst_size>(*current_trans);
master_sock.template get_extension<amba::amba_id>(m_id,*current_trans);
tlm::tlm_phase ph= tlm::BEGIN_REQ;
m_id->value=id;
master_sock.template validate_extension<amba::amba_id>(*current_trans);
// if (pkt->isRead())
// std::cout << "TLM BEHAVIOR: sending TLM_READ_COMMAND & BEGIN_REQ at time " << sc_core::sc_time_stamp() << std::endl;
// else
// std::cout << "TLM BEHAVIOR: sending TLM_WRITE_COMMAND & BEGIN_REQ at time " << sc_core::sc_time_stamp() << std::endl;
tlm::tlm_sync_enum retval= master_sock->nb_transport_fw(*current_trans,ph,delay);
if((retval==tlm::TLM_UPDATED) && (ph == tlm::END_REQ)) // request accepted by Eagle Nest
{
// std::cout << "TLM BEHAVIOR: received TLM_UPDATED & END_REQ at time " << sc_core::sc_time_stamp() << std::endl;
if (pkt->isRead())
{
rd_packets[id]=pkt;
}
else
{
wr_packets[id]=pkt;
writeDataQueue.write(id);
}
return true;
}
else if(retval== tlm::TLM_ACCEPTED) // request blocked till END_REQ received
{
// std::cout << "TLM BEHAVIOR: received TLM_ACCEPTED at time " << sc_core::sc_time_stamp() << std::endl;
needRetry=true;
return false;
}
}
else if ((pkt->cmd == MemCmd::UpgradeReq) || (pkt->cmd == MemCmd::SCUpgradeReq))
{
// It's a transition from S->E.
// The cache has a block in a shared state and requires an exclusive copy so it can write to it.
// ignore as no L3$ so far
dummy_pkt.push(pkt);
send_dummy_response_event.notify(clk_period);
}
else if (pkt->cmd == MemCmd::SwapReq)
{
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " received a SWAP request from GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize() << "-----> what should I do boss?" << std::endl;
}
else
{
std::cout << "ERROR: In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " received an UNKNOWN request from GEM5 with address=0x" << hex << pkt->getAddr() << dec << " size=" << pkt->getSize() << std::endl;
if (pkt->cmd == MemCmd::InvalidCmd)
{
std::cout << "InvalidCmd" << std::endl;
}
else if (pkt->cmd == MemCmd::SoftPFReq)
{
std::cout << "SoftPFReq" << std::endl;
}
else if (pkt->cmd == MemCmd::HardPFReq)
{
std::cout << "HardPFReq" << std::endl;
}
else if (pkt->cmd == MemCmd::WriteInvalidateReq)
{
std::cout << "WriteInvalidateReq" << std::endl;
}
else if (pkt->cmd == MemCmd::SCUpgradeFailReq)
{
std::cout << "SCUpgradeFailReq" << std::endl;
}
else if (pkt->cmd == MemCmd::StoreCondFailReq)
{
std::cout << "StoreCondFailReq" << std::endl;
}
else if (pkt->cmd == MemCmd::MessageReq)
{
std::cout << "MessageReq" << std::endl;
}
else if (pkt->cmd == MemCmd::InvalidDestError)
{
std::cout << "InvalidDestError" << std::endl;
}
else if (pkt->cmd == MemCmd::BadAddressError)
{
std::cout << "BadAddressError" << std::endl;
}
else if (pkt->cmd == MemCmd::FunctionalReadError)
{
std::cout << "FunctionalReadError" << std::endl;
}
else if (pkt->cmd == MemCmd::FunctionalWriteError)
{
std::cout << "FunctionalWriteError" << std::endl;
}
else if (pkt->cmd == MemCmd::PrintReq)
{
std::cout << "PrintReq" << std::endl;
}
else if (pkt->cmd == MemCmd::FlushReq)
{
std::cout << "FlushReq" << std::endl;
}
else
{
std::cout << "Unkwon" << std::endl;
}
//sc_core::sc_stop();
}
return true;
}