Can tlm interfaces be used?

orichal commented 2 years ago

Hierarchy:

TOP --> TB --> DUT

DUT module:

sc_port< tlm_nonblocking_get_peek_if< bool > > status; ... if (status->nb_can_get()) { bool status_in; status->nb_get(status_in); }

TB module:

sc_port< tlm_nonblocking_put_if< bool > > status; ... if (status->nb_can_put()) { bool status_out = true; status->nb_put(status_out); }

TOP module:

DUT dut; TB tb; tlm_fifo chan_status; ... tb.bind(chan_status); dut.bind(chan_status);

Errors:

The above code will end up with errors:

Intel Compiler for SystemC (ICSC) version 1.4.31, Jun 17,2022

Top-level module is Control error: Port bound to incorrect signal: TOP.dut.status fatal error: ScTool internal fatal error : No global static constant integer result

SystemC-to-Verilog translation, ERROR

2 errors generated.

mikhailmoiseev commented 2 years ago

TLM 1.0 interfaces are not supported.

There is a communication library with blocking/non-blocking interfaces similar to TLM 1.0 which are synthesizable. The library also has external ports with TLM 2.0 interfaces. It will be available near months.

orichal commented 2 years ago

TLM 1.0 interfaces are not supported.

There is a communication library with blocking/non-blocking interfaces similar to TLM 1.0 which are synthesizable. The library also has external ports with TLM 2.0 interfaces. It will be available near months.

Thank you for a quick answer. Is the TLM-1.0 equivalent part of the communication library available ?

mikhailmoiseev commented 2 years ago

The communication library modules have sct_put_if/sct_get_if interfaces given below. The reason why TLM 1.0 was not taken is it includes too many functions and some of them cannot be synthesized.

Interface	Functions	Comment
sct_put_if	`bool ready()`	Return true if it is ready to put request
	`void reset_put()`	Reset this initiator/FIFO
	`void clear_put()`	Clear (remove) request put in this cycle
	`bool put(const T& data)`	Put request into initiator/FIFO if it is ready, return ready to request
	`bool put(const T& data, sc_uint<N> mask)` \| Put request into initiator/FIFO if it is ready, `mask` used to enable/disable put or choose targets in multi-cast put, return ready to request
	`void b_put(const T& data)`	May-block put request, could be used in THREAD process only
	`bool has_put()`	Put request done at last DC, combinational in RTL mode
	`void addTo(sc_sensitive& s)`	Add put related signal to process sensitivity
	`void addHasPutTo(sc_sensitive& s)` \| Add signals to sensitivity for process which calls `has_put()`
sct_get_if	`bool request()`	Return true if it has request to get
	`void reset_get()`	Reset this target/FIFO
	`void clear_get()`	Clear (return back) request got in this cycle
	`T peek()`	Peek request, return current request data, if no request last data returned
	`T get()`	Get request and remove it from FIFO/target, return current request data, if no request last data returned
	`bool get(T& data, bool enable)` \| Get request and remove it from FIFO/target if `enable` is true, return true if there is a request
	`T b_get()`	May-block get request, could be used in THREAD process only
	`bool has_get()`	Get request done at last DC, combinational in RTL mode
	`void addTo(sc_sensitive& s)`	Add get related signal to process sensitivity
	`void addPeekTo(sc_sensitive& s)`	Add peek related signal to process sensitivity
	`void addHasGetTo(sc_sensitive& s)` \| Add signals to sensitivity for process which calls `has_get()`

orichal commented 2 years ago

Thank you, seems as it covers the most important part of TLM 1.0 nb/b get/put/peek . Looking forward!

mikhailmoiseev commented 1 year ago

In version 1.5.1 sct_fifo updated with the interfaces given above. This implementation is free of limitations. See more details at https://github.com/intel/systemc-compiler/wiki/Common-SystemC-Library

mikhailmoiseev commented 1 year ago

Please find the SingleSource library with TLM interfaces implementation at https://github.com/intel/systemc-compiler/tree/main/components/common. There is description of the library channels in update UserGuide: https://github.com/intel/systemc-compiler/blob/main/doc/ug.pdf

orichal commented 1 year ago

Thanks!

orichal commented 12 months ago

Hi Mikhail,

Thank you very much.

Ori

On Sat, Sep 30, 2023, 23:31 Mikhail Moiseev @.***> wrote:

Closed #36 https://github.com/intel/systemc-compiler/issues/36 as completed.

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