// TLM-2 blocking transport method
virtual void b_transport( tlm::tlm_generic_payload& trans, sc_time& delay )
{
tlm::tlm_command cmd = trans.get_command();
sc_dt::uint64 adr = trans.get_address();
unsigned char* ptr = trans.get_data_ptr();
unsigned int len = trans.get_data_length();
unsigned char* byt = trans.get_byte_enable_ptr();
unsigned int wid = trans.get_streaming_width();
// Obliged to check address range and check for unsupported features,
// i.e. byte enables, streaming, and bursts
// Can ignore DMI hint and extensions
// Using the SystemC report handler is an acceptable way of signalling an error
if (adr >= sc_dt::uint64(SIZE) || byt != 0 || len > 4 || wid < len)
SC_REPORT_ERROR("TLM-2", "Target does not support given generic payload transaction");
// Obliged to implement read and write commands
if ( cmd == tlm::TLM_READ_COMMAND ){
memcpy(ptr, &mem[adr], len);
cout << "Data: " << dec << mem[adr] <<
" is read from Address: " << dec << adr << endl;
}
else if ( cmd == tlm::TLM_WRITE_COMMAND ){
memcpy(&mem[adr], ptr, len);
cout << "Data: " << dec << mem[adr] <<
" is written into Address: " << dec << adr << endl;
}
// Obliged to set response status to indicate successful completion
trans.set_response_status( tlm::TLM_OK_RESPONSE );
}
inline void lt_target::b_transport(tlm::tlm_generic_payload& trans, sc_time& delay){
sc_dt::uint64 adr = trans.get_address() / 4;
unsigned char* ptr = trans.get_data_ptr();
unsigned int len = trans.get_data_length();
unsigned char* byt = trans.get_byte_enable_ptr();
unsigned int blen = trans.get_byte_enable_length();
unsigned int wid = trans.get_streaming_width();
if (adr >= sc_dt::uint64(mem_size) ) {
trans.set_response_status( tlm::TLM_ADDRESS_ERROR_RESPONSE );
return;
}
if ( wid < len ) {
trans.set_response_status( tlm::TLM_BURST_ERROR_RESPONSE );
return;
}
if (trans.is_read()) {
delay += rd_latency;
if ( byt != 0 ) {
for ( unsigned int i = 0; i < len; i++ )
if ( byt[i % blen] == TLM_BYTE_ENABLED ){
ptr[i] = (mem[adr+i/4] >> ((i&3)*8)) & 0xFF;
}
} else {
// TLM-2 non-blocking transport method
tlm::tlm_sync_enum nb_transport_fw(int tag, tlm::tlm_generic_payload& trans,
tlm::tlm_phase& phase, sc_time& delay){
sc_dt::uint64 adr = trans.get_address();
unsigned int len = trans.get_data_length();
unsigned char* byt = trans.get_byte_enable_ptr();
unsigned int wid = trans.get_streaming_width();
// Obliged to check the transaction attributes for unsupported features
// and to generate the appropriate error response
if (byt != 0){
trans.set_response_status(tlm::TLM_BYTE_ENABLE_ERROR_RESPONSE);
return tlm::TLM_COMPLETED;
}
if(adr > this->size){
trans.set_response_status(tlm::TLM_ADDRESS_ERROR_RESPONSE);
std::cerr << "Error requesting address " << std::showbase << std::hex << adr << std::dec << std::endl;
return tlm::TLM_COMPLETED;
}
// Now queue the transaction until the annotated time has elapsed
if(phase == tlm::BEGIN_REQ){
while(this->transactionInProgress){
//std::cerr << "waiting for transactionInProgress" << std::endl;
wait(this->transactionCompleted);
}
//std::cerr << "there are no transactionInProgress" << std::endl;
this->transactionInProgress = true;
}
this->transId = tag;
m_peq.notify(trans, phase, delay);
trans.set_response_status(tlm::TLM_OK_RESPONSE);
return tlm::TLM_ACCEPTED;
}
// TLM-2 blocking transport method
virtual void b_transport( tlm::tlm_generic_payload& trans, sc_time& delay )
{
tlm::tlm_command cmd = trans.get_command();
sc_dt::uint64 adr = trans.get_address() / 4;
unsigned char* ptr = trans.get_data_ptr();
unsigned int len = trans.get_data_length();
unsigned char* byt = trans.get_byte_enable_ptr();
unsigned int wid = trans.get_streaming_width();
// Obliged to check address range and check for unsupported features,
// i.e. byte enables, streaming, and bursts
// Can ignore extensions
// *********************************************
// Generate the appropriate error response
// *********************************************
if (adr >= sc_dt::uint64(SIZE)) {
trans.set_response_status( tlm::TLM_ADDRESS_ERROR_RESPONSE );
return;
}
if (byt != 0) {
trans.set_response_status( tlm::TLM_BYTE_ENABLE_ERROR_RESPONSE );
return;
}
if (len > 4 || wid < len) {
trans.set_response_status( tlm::TLM_BURST_ERROR_RESPONSE );
return;
}
// Obliged to implement read and write commands
if ( cmd == tlm::TLM_READ_COMMAND )
memcpy(ptr, &mem[adr], len);
else if ( cmd == tlm::TLM_WRITE_COMMAND )
memcpy(&mem[adr], ptr, len);
// Illustrates that b_transport may block
wait(delay);
// Reset timing annotation after waiting
delay = SC_ZERO_TIME;
// *********************************************
// Set DMI hint to indicated that DMI is supported
// *********************************************
trans.set_dmi_allowed(true);
// Obliged to set response status to indicate successful completion
trans.set_response_status( tlm::TLM_OK_RESPONSE );
}
void memory::operation
(
tlm::tlm_generic_payload &gp
, sc_core::sc_time &delay_time ///< transaction delay
) {
sc_dt::uint64 address = gp.get_address(); // memory address
tlm::tlm_command command = gp.get_command(); // memory command
unsigned char *data = gp.get_data_ptr(); // data pointer
unsigned int length = gp.get_data_length(); // data length
tlm::tlm_response_status response_status = check_address(gp)
? tlm::TLM_OK_RESPONSE
: tlm::TLM_ADDRESS_ERROR_RESPONSE;
if (gp.get_byte_enable_ptr()) {
gp.set_response_status(tlm::TLM_BYTE_ENABLE_ERROR_RESPONSE);
}
else if (gp.get_streaming_width() != gp.get_data_length()) {
gp.set_response_status(tlm::TLM_BURST_ERROR_RESPONSE);
}
switch (command)
{
default:
{
gp.set_response_status(tlm::TLM_COMMAND_ERROR_RESPONSE);
break;
}
case tlm::TLM_WRITE_COMMAND:
{
if (response_status == tlm::TLM_OK_RESPONSE) {
for (unsigned int i = 0; i < length; i++) {
m_memory[address++] = data[i]; // move the data to memory
}
}
break;
}
case tlm::TLM_READ_COMMAND: {
if (response_status == tlm::TLM_OK_RESPONSE) {
for (unsigned int i = 0; i < length; i++)
{
data[i] = m_memory[address++]; // move the data from memory
}
}
break;
}
} // end switch
gp.set_response_status(response_status);
}
// TLM-2 blocking transport method
virtual void b_transport( tlm::tlm_generic_payload& trans, sc_time& delay )
{
tlm::tlm_command cmd = trans.get_command();
sc_dt::uint64 adr = trans.get_address();
unsigned char* ptr = trans.get_data_ptr();
unsigned int len = trans.get_data_length();
unsigned char* byt = trans.get_byte_enable_ptr();
unsigned int wid = trans.get_streaming_width();
// Obliged to check address range and check for unsupported features,
// i.e. byte enables, streaming, and bursts
// Can ignore DMI hint and extensions
// Using the SystemC report handler is an acceptable way of signalling an error
if (adr >= sc_dt::uint64(SIZE) * 4 || adr % 4)
{
trans.set_response_status( tlm::TLM_ADDRESS_ERROR_RESPONSE );
return;
}
else if (byt != 0)
{
trans.set_response_status( tlm::TLM_BYTE_ENABLE_ERROR_RESPONSE );
return;
}
else if (len > 4 || wid < len)
{
trans.set_response_status( tlm::TLM_BURST_ERROR_RESPONSE );
return;
}
// Obliged to implement read and write commands
if ( cmd == tlm::TLM_READ_COMMAND )
memcpy(ptr, &mem[adr/4], len);
else if ( cmd == tlm::TLM_WRITE_COMMAND )
memcpy(&mem[adr/4], ptr, len);
// Obliged to set response status to indicate successful completion
trans.set_response_status( tlm::TLM_OK_RESPONSE );
}
virtual tlm::tlm_sync_enum nb_transport_fw( tlm::tlm_generic_payload& trans,
tlm::tlm_phase& phase, sc_time& delay )
{
sc_dt::uint64 adr = trans.get_address();
unsigned int len = trans.get_data_length();
unsigned char* byt = trans.get_byte_enable_ptr();
unsigned int wid = trans.get_streaming_width();
// Obliged to check the transaction attributes for unsupported features
// and to generate the appropriate error response
if (byt != 0) {
trans.set_response_status( tlm::TLM_BYTE_ENABLE_ERROR_RESPONSE );
return tlm::TLM_COMPLETED;
}
if (len > 4 || wid < len) {
trans.set_response_status( tlm::TLM_BURST_ERROR_RESPONSE );
return tlm::TLM_COMPLETED;
}
// Now queue the transaction until the annotated time has elapsed
m_peq.notify( trans, phase, delay);
return tlm::TLM_ACCEPTED;
}
//==============================================================================
/// @fn memory::operation
//
/// @brief performs read and write
//
/// @details
/// This routine implements the read and write operations. including
/// checking for byte_enable and streaming that are not implemented
//
//==============================================================================
void
memory::operation
( tlm::tlm_generic_payload &gp
, sc_core::sc_time &delay_time ///< transaction delay
)
{
/// Access the required attributes from the payload
sc_dt::uint64 address = gp.get_address(); // memory address
tlm::tlm_command command = gp.get_command(); // memory command
unsigned char *data = gp.get_data_ptr(); // data pointer
unsigned int length = gp.get_data_length(); // data length
std::ostringstream msg;
msg.str("");
tlm::tlm_response_status response_status = check_address(gp);
if (gp.get_byte_enable_ptr())
{
gp.set_response_status(tlm::TLM_BYTE_ENABLE_ERROR_RESPONSE);
}
else if (gp.get_streaming_width() != gp.get_data_length())
{
gp.set_response_status(tlm::TLM_BURST_ERROR_RESPONSE);
}
switch (command)
{
default:
{
if (m_previous_warning == false)
{
msg << "Target: " << m_ID
<< " Unsupported Command Extension";
REPORT_INFO(filename, __FUNCTION__, msg.str());
gp.set_response_status(tlm::TLM_COMMAND_ERROR_RESPONSE);
delay_time = sc_core::SC_ZERO_TIME;
m_previous_warning = true;
}
break;
}
/// Setup a TLM_WRITE_COMMAND Informational Message and Write the Data from
/// the Generic Payload Data pointer to Memory
///
case tlm::TLM_WRITE_COMMAND:
{
if (response_status == tlm::TLM_OK_RESPONSE)
{
for (unsigned int i = 0; i < length; i++)
{
m_memory[address++] = data[i]; // move the data to memory
}
delay_time = delay_time + m_write_delay;
report::print(m_ID, gp, filename);
}
break;
}
case tlm::TLM_READ_COMMAND:
{
if (response_status == tlm::TLM_OK_RESPONSE)
{
for (unsigned int i = 0; i < length; i++)
{
data[i] = m_memory[address++]; // move the data to memory
}
delay_time = delay_time + m_read_delay;
report::print(m_ID, gp, filename);
}
break;
}
} // end switch
gp.set_response_status(response_status);
return;
} // end memory_operation
