src/Plugins/CoSimulationPlugin/IntegrationLibrary/hdl/renode_pkg.sv - 3p/renode/renode - Git at Google

 //
 // Copyright (c) 2010-2024 Antmicro
 //
 // This file is licensed under the MIT License.
 // Full license text is available in 'licenses/MIT.txt'.
 //

 `timescale 1ns / 1ps

 package renode_pkg;
   typedef longint address_t;
   typedef longint data_t;

   typedef enum int {
     // The included file contains enumerators of the action type used by the Renode protocol.
     // The values must be in sync with ActionType from Renode (defined in C#).
     `include "renode_action_enumerators.svh"
   } action_e;

   typedef struct {
     action_e action;
     address_t address;
     data_t data;
   } message_t;

   typedef enum data_t {
     QuadWord = {64{1'b1}},
     DoubleWord = {32'b0, {32{1'b1}}},
     Word = {48'b0, {16{1'b1}}},
     Byte = {56'b0, {8{1'b1}}}
   } valid_bits_e;

   typedef enum int {
     LogNoisy = -1,
     LogDebug = 0,
     LogInfo = 1,
     LogWarning = 2,
     LogError = 3
   } log_level_e;

   import "DPI-C" function void renodeDPIConnect(
     int receiverPort,
     int senderPort,
     string address
   );

   import "DPI-C" function void renodeDPIDisconnect();

   import "DPI-C" function bit renodeDPIIsConnected();

   import "DPI-C" function bit renodeDPILog(
     int logLevel,
     string data
   );

   import "DPI-C" function bit renodeDPIReceive(
     output action_e action,
     output address_t address,
     output data_t data
   );

   import "DPI-C" function bit renodeDPISend(
     action_e action,
     address_t address,
     data_t data
   );

   import "DPI-C" function bit renodeDPISendToAsync(
     action_e action,
     address_t address,
     data_t data
   );

   function static bit is_access_aligned(address_t address, valid_bits_e valid_bits);
     case(valid_bits)
       Byte: return 1;
       Word: return address % 2 == 0;
       DoubleWord: return address % 4 == 0;
       QuadWord: return address % 8 == 0;
       default: return 0;
     endcase
   endfunction

   function static integer valid_bits_to_transaction_width(valid_bits_e valid_bits);
     case (valid_bits)
       QuadWord: return 64;
       DoubleWord: return 32;
       Word: return 16;
       Byte: return 8;
       default: begin
           $error($sformatf("Cannot determine transaction width for valid_bits %d", valid_bits));
           return 0;
       end
     endcase
   endfunction

   class renode_connection;
     semaphore exclusive_receive = new(1);

     function new();
       $timeformat(0, 9, "s", 0);
     endfunction

     function void connect(int receiver_port, int sender_port, string address);
       renodeDPIConnect(receiver_port, sender_port, address);
       if(is_connected())
         $display("Renode at %t: Connected using the socket based interface", $realtime);
       else
         $error("Renode at %t: Connection error", $realtime);
     endfunction

     function bit is_connected();
       return renodeDPIIsConnected();
     endfunction

     function void fatal_error(string message);
       string error_msg;
       error_msg = $sformatf("Renode at %t: Error! %s", $realtime, message);
       log(LogError, error_msg);
       disconnect();
       $error(error_msg);
       $finish;
     endfunction

     function void handle_message(message_t message, output bit is_handled);
       is_handled = 1;
       case (message.action)
         renode_pkg::invalidAction: ;  // Intentionally left blank
         renode_pkg::disconnect: handle_disconnect();
         default: is_handled = 0;
       endcase
     endfunction

     function void log(log_level_e log_level, string message);
 `ifdef RENODE_DEBUG
       $display("Renode at %t logs: %s", $realtime, message);
 `endif
       if(!renodeDPILog(log_level, message)) begin
         $display("Renode at %t: Unable to send the log: %s", $realtime, message);
       end
     endfunction

     function void receive(output message_t message);
       bit is_received = try_receive(message);
       if (!is_received) fatal_error("Unable to receive a message.");
     endfunction

     function bit try_receive(output message_t message);
       bit is_received = renodeDPIReceive(message.action, message.address, message.data);
       if(is_received) begin
 `ifdef RENODE_DEBUG
       $display("Renode at %t: Received action %0s, address = 'h%h, data = 'h%h", $realtime, message.action.name(), message.address, message.data);
 `endif
       end
       return is_received;
     endfunction

     function void send(message_t message);
 `ifdef RENODE_DEBUG
       $display("Renode at %t: Sent action %0s, address = 'h%h, data = 'h%h", $realtime, message.action.name(), message.address, message.data);
 `endif
       if (!renodeDPISend(message.action, message.address, message.data)) fatal_error("Unexpected channel disconnection");
     endfunction

     function void send_to_async_receiver(message_t message);
 `ifdef RENODE_DEBUG
       $display("Renode at %t: Sent async action %0s, address = 'h%h, data = 'h%h", $realtime, message.action.name(), message.address, message.data);
 `endif
       if (!renodeDPISendToAsync(message.action, message.address, message.data)) fatal_error("Unexpected channel disconnection");
     endfunction

     local function void disconnect();
       renodeDPIDisconnect();
     endfunction

     local function void handle_disconnect();
       send(message_t'{ok, 0, 0});
       disconnect();
 `ifdef RENODE_DEBUG
       $display("Renode at %t: disconnected", $realtime);
 `endif
     endfunction
   endclass

   class bus_connection;
     event reset_assert_request;
     event reset_assert_response;
     event reset_deassert_request;
     event reset_deassert_response;

     event read_transaction_request;
     event read_transaction_response;
     address_t read_transaction_address;
     data_t read_transaction_data;
     valid_bits_e read_transaction_data_bits;
     bit read_transaction_is_error;

     event write_transaction_request;
     event write_transaction_response;
     address_t write_transaction_address;
     data_t write_transaction_data;
     valid_bits_e write_transaction_data_bits;
     bit write_transaction_is_error;

     // Passing a class by a reference isn't supported by Verilator.
     // Events are indirectly triggered by tasks.
     task reset_assert();
       ->reset_assert_request;
       @(reset_assert_response);
     endtask

     task reset_assert_respond();
       ->reset_assert_response;
     endtask

     task reset_deassert();
       ->reset_deassert_request;
       @(reset_deassert_response);
     endtask

     task reset_deassert_respond();
       ->reset_deassert_response;
     endtask

     task read(address_t address, valid_bits_e data_bits, output data_t data, output bit is_error);
       read_transaction_address = address;
       read_transaction_data_bits = data_bits;
       ->read_transaction_request;
       @(read_transaction_response) begin
         data = read_transaction_data;
         is_error = read_transaction_is_error;
       end
     endtask

     task read_respond(data_t data, bit is_error);
       read_transaction_data = data;
       read_transaction_is_error = is_error;
       ->read_transaction_response;
     endtask

     task write(address_t address, valid_bits_e data_bits, data_t data, output bit is_error);
       write_transaction_address = address;
       write_transaction_data_bits = data_bits;
       write_transaction_data = data;
       ->write_transaction_request;
       @(write_transaction_response) begin
         is_error = write_transaction_is_error;
       end
     endtask

     task write_respond(bit is_error);
       write_transaction_is_error = is_error;
       ->write_transaction_response;
     endtask
   endclass

   // It's required to pass the whole instance to modules.
   // Passing single property triggers a null pointer dereference in Verilator.
   class renode_runtime;
     const string ReceiverPortArgName = "RENODE_RECEIVER_PORT";
     const string SenderPortArgName = "RENODE_SENDER_PORT";
     const string AddressArgName = "RENODE_ADDRESS";

     renode_connection connection = new();
     bus_connection controller = new();
     bus_connection peripheral = new();

     function void connect_plus_args();
       int receiver_port, sender_port;
       string address;
       if(!$value$plusargs({ReceiverPortArgName, "=%d"}, receiver_port)
         || !$value$plusargs({SenderPortArgName, "=%d"}, sender_port)
         || !$value$plusargs({AddressArgName, "=%s"}, address))
       begin
           $error("Please specify the +%s, +%s and +%s arguments in the command that invokes the simulation", ReceiverPortArgName, SenderPortArgName, AddressArgName);
       end
       else begin
         connection.connect(receiver_port, sender_port, address);
       end
     endfunction

     function bit is_connected();
       return connection.is_connected();
     endfunction
   endclass
 endpackage
	//
	// Copyright (c) 2010-2024 Antmicro
	//
	// This file is licensed under the MIT License.
	// Full license text is available in 'licenses/MIT.txt'.
	//

	`timescale 1ns / 1ps

	package renode_pkg;
	typedef longint address_t;
	typedef longint data_t;

	typedef enum int {
	// The included file contains enumerators of the action type used by the Renode protocol.
	// The values must be in sync with ActionType from Renode (defined in C#).
	`include "renode_action_enumerators.svh"
	} action_e;

	typedef struct {
	action_e action;
	address_t address;
	data_t data;
	} message_t;

	typedef enum data_t {
	QuadWord = {64{1'b1}},
	DoubleWord = {32'b0, {32{1'b1}}},
	Word = {48'b0, {16{1'b1}}},
	Byte = {56'b0, {8{1'b1}}}
	} valid_bits_e;

	typedef enum int {
	LogNoisy = -1,
	LogDebug = 0,
	LogInfo = 1,
	LogWarning = 2,
	LogError = 3
	} log_level_e;

	import "DPI-C" function void renodeDPIConnect(
	int receiverPort,
	int senderPort,
	string address
	);

	import "DPI-C" function void renodeDPIDisconnect();

	import "DPI-C" function bit renodeDPIIsConnected();

	import "DPI-C" function bit renodeDPILog(
	int logLevel,
	string data
	);

	import "DPI-C" function bit renodeDPIReceive(
	output action_e action,
	output address_t address,
	output data_t data
	);

	import "DPI-C" function bit renodeDPISend(
	action_e action,
	address_t address,
	data_t data
	);

	import "DPI-C" function bit renodeDPISendToAsync(
	action_e action,
	address_t address,
	data_t data
	);

	function static bit is_access_aligned(address_t address, valid_bits_e valid_bits);
	case(valid_bits)
	Byte: return 1;
	Word: return address % 2 == 0;
	DoubleWord: return address % 4 == 0;
	QuadWord: return address % 8 == 0;
	default: return 0;
	endcase
	endfunction

	function static integer valid_bits_to_transaction_width(valid_bits_e valid_bits);
	case (valid_bits)
	QuadWord: return 64;
	DoubleWord: return 32;
	Word: return 16;
	Byte: return 8;
	default: begin
	$error($sformatf("Cannot determine transaction width for valid_bits %d", valid_bits));
	return 0;
	end
	endcase
	endfunction

	class renode_connection;
	semaphore exclusive_receive = new(1);

	function new();
	$timeformat(0, 9, "s", 0);
	endfunction

	function void connect(int receiver_port, int sender_port, string address);
	renodeDPIConnect(receiver_port, sender_port, address);
	if(is_connected())
	$display("Renode at %t: Connected using the socket based interface", $realtime);
	else
	$error("Renode at %t: Connection error", $realtime);
	endfunction

	function bit is_connected();
	return renodeDPIIsConnected();
	endfunction

	function void fatal_error(string message);
	string error_msg;
	error_msg = $sformatf("Renode at %t: Error! %s", $realtime, message);
	log(LogError, error_msg);
	disconnect();
	$error(error_msg);
	$finish;
	endfunction

	function void handle_message(message_t message, output bit is_handled);
	is_handled = 1;
	case (message.action)
	renode_pkg::invalidAction: ; // Intentionally left blank
	renode_pkg::disconnect: handle_disconnect();
	default: is_handled = 0;
	endcase
	endfunction

	function void log(log_level_e log_level, string message);
	`ifdef RENODE_DEBUG
	$display("Renode at %t logs: %s", $realtime, message);
	`endif
	if(!renodeDPILog(log_level, message)) begin
	$display("Renode at %t: Unable to send the log: %s", $realtime, message);
	end
	endfunction

	function void receive(output message_t message);
	bit is_received = try_receive(message);
	if (!is_received) fatal_error("Unable to receive a message.");
	endfunction

	function bit try_receive(output message_t message);
	bit is_received = renodeDPIReceive(message.action, message.address, message.data);
	if(is_received) begin
	`ifdef RENODE_DEBUG
	$display("Renode at %t: Received action %0s, address = 'h%h, data = 'h%h", $realtime, message.action.name(), message.address, message.data);
	`endif
	end
	return is_received;
	endfunction

	function void send(message_t message);
	`ifdef RENODE_DEBUG
	$display("Renode at %t: Sent action %0s, address = 'h%h, data = 'h%h", $realtime, message.action.name(), message.address, message.data);
	`endif
	if (!renodeDPISend(message.action, message.address, message.data)) fatal_error("Unexpected channel disconnection");
	endfunction

	function void send_to_async_receiver(message_t message);
	`ifdef RENODE_DEBUG
	$display("Renode at %t: Sent async action %0s, address = 'h%h, data = 'h%h", $realtime, message.action.name(), message.address, message.data);
	`endif
	if (!renodeDPISendToAsync(message.action, message.address, message.data)) fatal_error("Unexpected channel disconnection");
	endfunction

	local function void disconnect();
	renodeDPIDisconnect();
	endfunction

	local function void handle_disconnect();
	send(message_t'{ok, 0, 0});
	disconnect();
	`ifdef RENODE_DEBUG
	$display("Renode at %t: disconnected", $realtime);
	`endif
	endfunction
	endclass

	class bus_connection;
	event reset_assert_request;
	event reset_assert_response;
	event reset_deassert_request;
	event reset_deassert_response;

	event read_transaction_request;
	event read_transaction_response;
	address_t read_transaction_address;
	data_t read_transaction_data;
	valid_bits_e read_transaction_data_bits;
	bit read_transaction_is_error;

	event write_transaction_request;
	event write_transaction_response;
	address_t write_transaction_address;
	data_t write_transaction_data;
	valid_bits_e write_transaction_data_bits;
	bit write_transaction_is_error;

	// Passing a class by a reference isn't supported by Verilator.
	// Events are indirectly triggered by tasks.
	task reset_assert();
	->reset_assert_request;
	@(reset_assert_response);
	endtask

	task reset_assert_respond();
	->reset_assert_response;
	endtask

	task reset_deassert();
	->reset_deassert_request;
	@(reset_deassert_response);
	endtask

	task reset_deassert_respond();
	->reset_deassert_response;
	endtask

	task read(address_t address, valid_bits_e data_bits, output data_t data, output bit is_error);
	read_transaction_address = address;
	read_transaction_data_bits = data_bits;
	->read_transaction_request;
	@(read_transaction_response) begin
	data = read_transaction_data;
	is_error = read_transaction_is_error;
	end
	endtask

	task read_respond(data_t data, bit is_error);
	read_transaction_data = data;
	read_transaction_is_error = is_error;
	->read_transaction_response;
	endtask

	task write(address_t address, valid_bits_e data_bits, data_t data, output bit is_error);
	write_transaction_address = address;
	write_transaction_data_bits = data_bits;
	write_transaction_data = data;
	->write_transaction_request;
	@(write_transaction_response) begin
	is_error = write_transaction_is_error;
	end
	endtask

	task write_respond(bit is_error);
	write_transaction_is_error = is_error;
	->write_transaction_response;
	endtask
	endclass

	// It's required to pass the whole instance to modules.
	// Passing single property triggers a null pointer dereference in Verilator.
	class renode_runtime;
	const string ReceiverPortArgName = "RENODE_RECEIVER_PORT";
	const string SenderPortArgName = "RENODE_SENDER_PORT";
	const string AddressArgName = "RENODE_ADDRESS";

	renode_connection connection = new();
	bus_connection controller = new();
	bus_connection peripheral = new();

	function void connect_plus_args();
	int receiver_port, sender_port;
	string address;
	if(!$value$plusargs({ReceiverPortArgName, "=%d"}, receiver_port)
	\|\| !$value$plusargs({SenderPortArgName, "=%d"}, sender_port)
	\|\| !$value$plusargs({AddressArgName, "=%s"}, address))
	begin
	$error("Please specify the +%s, +%s and +%s arguments in the command that invokes the simulation", ReceiverPortArgName, SenderPortArgName, AddressArgName);
	end
	else begin
	connection.connect(receiver_port, sender_port, address);
	end
	endfunction

	function bit is_connected();
	return connection.is_connected();
	endfunction
	endclass
	endpackage