1.7.0 Release Tracking PR

[davidbiancolin]

Added

• Initial Golden Gate open-sourcing
  • see README.md for description of changes
  • see firesim-docs for documentation
  • see ICCAD2019 paper for an overview
• Golden Gate & Runtime Config Generator made firrtl.Stages
  • see src/main/scala/midas/stage

    Changed

• Endpoints replaced with [target-to-host] Bridge
  • see src/main/scala/midas/widgets/Bridge.scala
  • see firesim-docs for docs. Will post porting guide to google groups.
• PeekPokeBridge (formerly) PeekPokeIOWidget can now peek outputs that depend combinationally on inputs
• FASED timing models use maximum number of available sets and max associativity

Fixed

• Block Device widget
  • A bug that would cause the simulation to hang under current reads and writes (PR #308)
  • A determinism hole that would cause reads to be released prematurely in target-time (PR #325)

Deprecated

• None

Removed

• Support for clock domain division in channels temporarily removed. To be re-introduced in next release (before ICCAD).