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(C) Copyright 2017 AMIQ Consulting

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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Title: UVM/SystemVerilog Register Model to IP-XACT

Name: uvm_reg_to_ipxact_pkg.uvm_reg_to_ipxact_printer

Modified: 13-Feb-2017

Support: [email protected], AMIQ Blog

Description:

• uvm_reg_to_ipxact_printer is an application that exports existing UVM/SystemVerilog register model definitions to an IP-XACT XML file

• For more information on IP-XACT checkout their site.

Directory structure:

This package contains the following directories:

• docs - HTML documentation
• scripts - All scripts used to run the test
• sv - All sv sources of the library
• tb - Verilog testbench, including usage example
• xml - IP-XACT XML file after the simulation

Demo:

If you want to run with irun:

1. cd ./scripts
2. chmod +rwx irun_run.sh
3. ./irun_run.sh

If you want to run with questa:

1. cd ./scripts
2. chmod +rwx questa_run.sh
3. ./questa_run.sh

If you want to run with vcs:

1. cd ./scripts
2. chmod +rwx vcs_run.sh
3. ./vcs_run.sh

How to export your register model using the demo testbench

Make sure you include your register model files in the testbench:

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`include "my_reg_file.sv"

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Create an instance of your register model in the initial-task:

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 my_reg_block reg_block;
 // create the register model instance
 reg_block = my_reg_block::type_id::create("basic_block");
 reg_block.build();
 reg_block.lock_model();

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Modify the global parameters of the IP-XACT model:

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 basic_printer.set_parameters("my_reg_model.xml", "me", "my_reg_library", "1.4", "all_classes_file", 1);

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Now you can run the application by using one of the demo run scripts. You should see the result in /path/to/uvm_reg_to_ipxact/scripts/xml/my_reg_model.xml.

How to export your register model using an existing test

You can follow the steps bellow if you already have a working register model and test that uses it.

Make sure you include uvm_reg_to_ipxact_pkg.sv in the compile flow of your verification environment and import it in the test:

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 import uvm_reg_to_ipxact_pkg::*;

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In the run phase of the test include the following code:

 // create a basic printer instance
 my_reg_block reg_block;
 uvm_reg_to_ipxact_printer basic_printer;
 basic_printer = uvm_reg_to_ipxact_printer::type_id::create("basic");

 // Modify here the parameters with the correct ones
 basic_printer.set_parameters("ipxact.xml", "avendor", "alibrary", "1.4", "all_classes_file", 1);

 // get the pointer to the register model instance
 reg_block = env.reg_agent.reg_model_inst;

 // call of the export to ipxact on your instance of the register model
 basic_printer.export_ipxact(reg_block);

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Now you can run the test and you should see the result in /path/to/simulation/folder/my_reg_model.xml.

Implementation

The application makes use of a tree of printers, all extending from uvm_reg_to_ipxact_printer_base. Each of the printers handles a certain part of the register model (e.g. field level, register level, map level). See more in the HTML Documentation.

Improvements

1. Buffer strings in the top level printer and write to file in chunks to lessen the hdd access
2. Run tests on more complex maps
3. Handle vendor-extensions: well this is more delicate, a vendor should explain what those are and how you can extract them