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extends tlm_target to allow retrieval of generic payload extensions #86

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Merged
eyck merged 1 commit into from
Dec 15, 2025
Merged

extends tlm_target to allow retrieval of generic payload extensions #86

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12 changes: 12 additions & 0 deletions src/components/scc/tlm_target.h
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Original file line number Diff line number Diff line change
Expand Up @@ -104,9 +104,15 @@ template <unsigned int BUSWIDTH = LT, unsigned int ADDR_UNIT_BITWIDTH = 8> class

private:
sc_core::sc_time& clk;
tlm::tlm_generic_payload* current_payload{nullptr};

protected:
util::range_lut<std::pair<resource_access_if*, uint64_t>> socket_map;
template <typename T> T* get_payload_extendsion() {
if(current_payload)
return current_payload->get_extension<T>();
return nullptr;
}
};
/**
* helper structure to define a address range for a socket
Expand Down Expand Up @@ -192,6 +198,7 @@ void scc::tlm_target<BUSWIDTH, ADDR_UNIT_BITWIDTH>::b_tranport_cb(tlm::tlm_gener
gp.set_response_status(tlm::TLM_BYTE_ENABLE_ERROR_RESPONSE);
} else {
gp.set_response_status(tlm::TLM_COMMAND_ERROR_RESPONSE);
current_payload = &gp;
switch(gp.get_command()) {
case tlm::TLM_READ_COMMAND:
if(ra->read(gp.get_data_ptr() + offset, len, (gp.get_address() - base + offset), delay))
Expand All @@ -201,7 +208,10 @@ void scc::tlm_target<BUSWIDTH, ADDR_UNIT_BITWIDTH>::b_tranport_cb(tlm::tlm_gener
if(ra->write(gp.get_data_ptr() + offset, len, (gp.get_address() - base + offset), delay))
gp.set_response_status(tlm::TLM_OK_RESPONSE);
break;
case tlm::TLM_IGNORE_COMMAND:
break;
}
current_payload = nullptr;
}
} else {
gp.set_response_status(tlm::TLM_ADDRESS_ERROR_RESPONSE);
Expand All @@ -216,13 +226,15 @@ unsigned int scc::tlm_target<BUSWIDTH, ADDR_UNIT_BITWIDTH>::tranport_dbg_cb(tlm:
std::tie(ra, base) = socket_map.getEntry(gp.get_address());
if(ra) {
if(gp.get_data_length() == ra->size() && gp.get_byte_enable_ptr() == nullptr && gp.get_data_length() == gp.get_streaming_width()) {
current_payload = &gp;
if(gp.get_command() == tlm::TLM_READ_COMMAND) {
if(ra->read_dbg(gp.get_data_ptr(), gp.get_data_length(), (gp.get_address() - base) / ra->size()))
return gp.get_data_length();
} else if(gp.get_command() == tlm::TLM_WRITE_COMMAND) {
if(ra->write_dbg(gp.get_data_ptr(), gp.get_data_length(), (gp.get_address() - base) / ra->size()))
return gp.get_data_length();
}
current_payload = nullptr;
}
}
return 0;
Expand Down
14 changes: 13 additions & 1 deletion src/sysc/tlm/scc/tlm_id.h
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ namespace scc {

struct tlm_id_extension : public tlm_extension<tlm_id_extension> {
virtual tlm_extension_base* clone() const {
tlm_id_extension* t = new tlm_id_extension(this->id);
auto* t = new tlm_id_extension(this->id);
return t;
}
virtual void copy_from(tlm_extension_base const& from) { id = static_cast<tlm_id_extension const&>(from).id; }
Expand Down Expand Up @@ -63,5 +63,17 @@ inline void setId(tlm::tlm_generic_payload& gp, uintptr_t id) {
else
gp.set_extension(new tlm_id_extension(id));
}

struct initiator_id_extension : public tlm_extension<tlm_id_extension> {
virtual tlm_extension_base* clone() const {
auto* t = new initiator_id_extension(this->id);
return t;
}
virtual void copy_from(tlm_extension_base const& from) {}
initiator_id_extension(uint64_t i)
: id(i) {}
const uint64_t id;
};

} // namespace scc
} // namespace tlm