| commit | 7b0807d3c8a67ddf905f0e7159c15a339e947ce7 | [log] [tgz] |
|---|---|---|
| author | Michael Schaffner <msf@opentitan.org> | Tue Oct 27 19:54:52 2020 -0700 |
| committer | Michael Schaffner <msf@google.com> | Mon Nov 02 10:48:09 2020 -0800 |
| tree | 23506af0a6cbc5a04a0da046bff3bb62333c9637 | |
| parent | 1e1f57a6d67e31de5186e03a036b589e2dcf9e9c [diff] |
[reggen/topgen] Add support for generating random netlist constants This extends the instantiation paramter feature of reggen/topgen such that random netlist constants can be generated and assigned in a systematic way. To that end, each IP has to declare in the corresponding HJSON which parameters are compile time random netlist constants. Topgen then aggregates and uniquifies those parameters, assigns random data and puts them into a dedicated top-level package which is only meant for random netlist constants. The supported random constant types are either "data" which just corresponds to a randomized logic of a certain length, or "perm" which corresponds to a random permutation of linear array indices up to a certain length. Topgen allows to specify a custom seed inside top_earlgrey.hjson or on the commandline using the --seed switch in order to make the random number generation repeatable, if needed. Signed-off-by: Michael Schaffner <msf@opentitan.org>
OpenTitan is an open source silicon Root of Trust (RoT) project. OpenTitan will make the silicon RoT design and implementation more transparent, trustworthy, and secure for enterprises, platform providers, and chip manufacturers. OpenTitan is administered by lowRISC CIC as a collaborative project to produce high quality, open IP for instantiation as a full-featured product. See the OpenTitan site and OpenTitan docs for more information about the project.
This repository contains hardware, software and utilities written as part of the OpenTitan project. It is structured as monolithic repository, or “monorepo”, where all components live in one repository. It exists to enable collaboration across partners participating in the OpenTitan project.
The project contains comprehensive documentation of all IPs and tools. You can access it online at docs.opentitan.org.
Have a look at CONTRIBUTING for guidelines on how to contribute code to this repository.
Unless otherwise noted, everything in this repository is covered by the Apache License, Version 2.0 (see LICENSE for full text).