bool PHXSimWrap::recvTiming(PacketPtr pkt)
{
uint64_t addr = pkt->getAddr();
PRINTFN("%s: %s %#lx\n", __func__, pkt->cmdString().c_str(), (long)addr);
pkt->dram_enter_time = curTick();
if ( pkt->isRead() ) {
bool ret = m_memorySystem->AddTransaction( false, addr, 0 );
if ( ! ret ) return false;
assert(m_rd_pktMap.find( addr ) == m_rd_pktMap.end());
m_rd_pktMap[ addr ] = pkt;
} else if ( pkt->isWrite() ) {
bool ret = m_memorySystem->AddTransaction( true, addr, 0 );
if ( ! ret ) return false;
std::multimap< uint64_t, PacketPtr >::iterator it;
it = m_wr_pktMap.find( addr );
assert( it == m_wr_pktMap.end());
m_wr_pktMap.insert( pair<uint64_t, PacketPtr>(addr, pkt) );
} else {
if ( pkt->needsResponse() ) {
pkt->makeTimingResponse();
m_readyQ.push_back( pkt );
} else {
delete pkt;
}
}
return true;
}
tlm::tlm_sync_enum BridgeClassicToAMBATLM2<BUSWIDTH>::nb_bw_transport(tlm::tlm_generic_payload & trans, tlm::tlm_phase & ph, sc_core::sc_time &delay)
{
// std::cout << sc_core::sc_object::name()<< ph << std::endl;
amba::amba_id * m_id;
amba::amba_exclusive * m_exclusive;
tlm::tlm_sync_enum returnVal=tlm::TLM_ACCEPTED;
std::ostringstream msg;
msg.str("");
if(ph == amba::BEGIN_LAST_RESP || ph == tlm::BEGIN_RESP)
{
//assert(trans.get_command()==tlm::TLM_READ_COMMAND && "Write Command doesn't support the response.");
master_sock.template get_extension<amba::amba_id>(m_id,trans);
if (trans.is_write())
{
// std::cout << "TLM BEHAVIOR: received BEGIN_RESP at time " << sc_core::sc_time_stamp() << std::endl;
assert(ph == tlm::BEGIN_RESP);
assert(wr_packets[m_id->value] != NULL);
//as per packet.cc:74 writeback never needs a response
if (wr_packets[m_id->value]->cmd != MemCmd::Writeback)
{
if (master_sock.template get_extension<amba::amba_exclusive>(m_exclusive,trans))
{
if (m_exclusive->value)
{
wr_packets[m_id->value]->req->setExtraData(0);
}
else
{
wr_packets[m_id->value]->req->setExtraData(1);
}
}
setCurTick(sc_core::sc_time_stamp().value());
wr_packets[m_id->value]->busFirstWordDelay = wr_packets[m_id->value]->busLastWordDelay = 0;
if (bus_stalling)
retryQueue.push(wr_packets[m_id->value]);
else if (!slavePort->sendTimingResp(wr_packets[m_id->value]))
{
bus_stalling=true;
retryQueue.push(wr_packets[m_id->value]);
}
#ifdef DEBUG
else if (_trace_transactions)
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " sending a WS response to GEM5 with address=0x" << hex << trans.get_address() << dec << " size=" << trans.get_data_length() << std::endl;
#endif
}
master_sock.release_transaction(&trans); //now we release
wr_packets[m_id->value] = NULL;
if (needWrIdRetry)
{
setCurTick(sc_core::sc_time_stamp().value());
needWrIdRetry=false;
slavePort->sendRetry();
}
}
else if (ph == amba::BEGIN_LAST_RESP)
{
// std::cout << "TLM BEHAVIOR: received BEGIN_LAST_RESP at time " << sc_core::sc_time_stamp() << std::endl;
assert(rd_packets[m_id->value] != NULL);
uint8_t * data=trans.get_data_ptr();
PacketPtr pkt = rd_packets[m_id->value];
pkt->makeTimingResponse();
uint32_t shadow_size=pkt->getSize();
uint64_t shadow_addr=pkt->getAddr();
// std::cout << sc_core::sc_object::name() << " bridge received read data for address = " << trans.get_address()-pkt->getAddr() << " at time " << sc_time_stamp() << std::endl;
memcpy(pkt->getPtr<uint8_t>(),data,pkt->getSize());
// if (master_sock.template get_extension<amba::amba_exclusive>(m_exclusive,trans))
// {
// if (m_exclusive->value)
// pkt->req->setExtraData(0);
// else
// pkt->req->setExtraData(1);
// }
setCurTick(sc_core::sc_time_stamp().value());
pkt->busFirstWordDelay = pkt->busLastWordDelay = 0;
if (bus_stalling)
retryQueue.push(pkt);
else if (!slavePort->sendTimingResp(pkt))
{
bus_stalling=true;
retryQueue.push(pkt);
}
#ifdef DEBUG
else if (_trace_transactions)
{
std::cout << "In " << sc_core::sc_object::name() << " at time " << sc_time_stamp() << " sending a READ response to GEM5 with address=0x" << hex << shadow_addr << dec << " size=" << shadow_size;
std::cout << hex << " and data= [";
for(unsigned j=0;j<shadow_size; j++)
std::cout << "0x" << uint32_t(data[j]) << ",";
std::cout << "]" << dec << std::endl;
}
#endif
rd_packets[m_id->value]=NULL;
master_sock.release_transaction(&trans);
if (needRdIdRetry)
{
setCurTick(sc_core::sc_time_stamp().value());
needRdIdRetry=false;
slavePort->sendRetry();
}
}
else
{
//received a read data phase
}
//always accept directly (cf EagleNest spec)
// std::cout << "TLM BEHAVIOR: sending TLM_UPDATED & END_RESP at time " << sc_core::sc_time_stamp() << std::endl;
ph=tlm::END_RESP;
return tlm::TLM_UPDATED;
}
else if(ph ==tlm::END_REQ)
{
// std::cout << "TLM BEHAVIOR: received END_REQ and returning TLM_ACCEPTED at time " << sc_core::sc_time_stamp() << std::endl;
if (needRetry)
{
setCurTick(sc_core::sc_time_stamp().value());
trans.release();
needRetry=false;
slavePort->sendRetry();
}
}
else if(ph== amba::END_DATA )
{
// std::cout << "TLM BEHAVIOR: received END_DATA and returning TLM_ACCEPTED at time " << sc_core::sc_time_stamp() << std::endl;
if (need_wenable_event)
{
need_wenable_event=false;
wenable_event.notify();
}
return tlm::TLM_ACCEPTED;
}
else
assert("Unexpected phase returned from AXI slave.");
return returnVal;
}
void BridgeClassicToAMBATLM2<BUSWIDTH>::sendWriteData()
{
PacketPtr pkt;
sc_core::sc_time delay= sc_core::SC_ZERO_TIME;
uint32_t width=(BUSWIDTH/8);
uint32_t burstLen=0;
uint32_t count=0;
uint32_t id = 0;
uint32_t dp_size = 0;
uint64_t address;
tlm::tlm_generic_payload* _trans;
tlm::tlm_phase ph;
amba::amba_id * m_id;
bool last=false;
while(true)
{
id = writeDataQueue.read();
pkt=wr_packets[id];
_trans=master_sock.get_transaction();
master_sock.reserve_data_size(*_trans, pkt->getSize()); //reserve the requested amount of data array bytes
_trans->set_command(tlm::TLM_WRITE_COMMAND);
address=pkt->getAddr();
burstLen = uint32_t(ceil(double_t(pkt->getSize()+address%width)/double_t(width)));
master_sock.template get_extension<amba::amba_id>(m_id,*_trans);
m_id->value=id;
master_sock.template validate_extension<amba::amba_id>(*_trans);
count=0;
memcpy(_trans->get_data_ptr(),pkt->getPtr<uint8_t>(),pkt->getSize());
dp_size=std::min(width-uint32_t(address%width),pkt->getSize());
uint32_t bytes_left=pkt->getSize();
// hanle the case where first dataphase is not aligned
if((address%width) != 0)
{
_trans->set_address(address);
_trans->set_data_length(dp_size);
if (burstLen == 1)
{
// std::cout << "TLM BEHAVIOR: TLM_WRITE_COMMAND & BEGIN_LAST_DATA 1 at time " << sc_core::sc_time_stamp() << "count= " << count << " burstLen=" << burstLen << std::endl;
ph= amba::BEGIN_LAST_DATA;
last=true;
}
else
{
// std::cout << "TLM BEHAVIOR: TLM_WRITE_COMMAND & BEGIN_DATA 1 at time " << sc_core::sc_time_stamp() << std::endl;
ph = amba::BEGIN_DATA;
last=false;
}
switch(master_sock->nb_transport_fw(*_trans,ph,delay))
{
case tlm::TLM_ACCEPTED:
// std::cout << "TLM BEHAVIOR: response=TLM_ACCEPTED at time " << sc_core::sc_time_stamp() << std::endl;
need_wenable_event=true;
wait(wenable_event);
break;
case tlm::TLM_UPDATED:
// std::cout << "TLM BEHAVIOR: response=TLM_UPDATED & END_DATA at time " << sc_core::sc_time_stamp() << std::endl;
assert(ph == amba::END_DATA);
break;
case tlm::TLM_COMPLETED:
// std::cout << "TLM BEHAVIOR: response=TLM_COMPLETED at time " << sc_core::sc_time_stamp() << std::endl;
abort();
break;
default:
abort();
break;
}
bytes_left -= dp_size;
count++;
address += dp_size;
//as per packet.cc:74 writeback never needs a response
if (last && (pkt->cmd != MemCmd::Writeback))
pkt->makeTimingResponse();
}
while(count<burstLen)
{
_trans->set_address(address);
if(count+1 >= burstLen)
{
// std::cout << "TLM BEHAVIOR: TLM_WRITE_COMMAND & BEGIN_LAST_DATA 2 at time " << sc_core::sc_time_stamp() << "count= " << count << " burstLen=" << burstLen << std::endl;
_trans->set_data_length(bytes_left);
ph= amba::BEGIN_LAST_DATA;
last=true;
}
else
{
// std::cout << "TLM BEHAVIOR: TLM_WRITE_COMMAND & BEGIN_DATA 2 at time " << sc_core::sc_time_stamp() << std::endl;
_trans->set_data_length(width);
last=false;
ph =amba::BEGIN_DATA;
}
// std::cout << sc_core::sc_object::name() <<" Sending the write transaction data, at time " << sc_core::sc_time_stamp() <<" BURST-COUNT="<< (count+1)<<std::endl;
switch(master_sock->nb_transport_fw(*_trans,ph,delay))
{
case tlm::TLM_ACCEPTED:
// std::cout << "TLM BEHAVIOR: received TLM_ACCEPTED at time " << sc_core::sc_time_stamp() << std::endl;
need_wenable_event=true;
wait(wenable_event);
/*count++;
address += width;
if (!last)
bytes_left -= width;
//as per packet.cc:74 writeback never needs a response
if (last && (pkt->cmd != MemCmd::Writeback))
pkt->makeTimingResponse();*/
break;
case tlm::TLM_UPDATED:
// std::cout << "TLM BEHAVIOR: received TLM_UPDATED & END_DATA at time " << sc_core::sc_time_stamp() << std::endl;
assert(ph == amba::END_DATA);
count++;
address += width;
if (!last)
bytes_left -= width;
//as per packet.cc:74 writeback never needs a response
if (last && (pkt->cmd != MemCmd::Writeback))
pkt->makeTimingResponse();
break;
case tlm::TLM_COMPLETED:
// std::cout << "TLM BEHAVIOR: received TLM_COMPLETED at time " << sc_core::sc_time_stamp() << std::endl;
abort();
}
wait(clk_period);
}
if (needWrRetry)
{
setCurTick(sc_core::sc_time_stamp().value());
needWrRetry=false;
slavePort->sendRetry();
}
}
}
