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Changelog

This changelog follows the format defined here: https://keepachangelog.com/en/1.0.0/

[1.3.0] - 2020-05-31

A more detailed account of everything included is included in the dev to master PR for this release: #500

Added

  • A new Top-level module, ChipTop, has been created. ChipTop instantiates a "system" module specified by BuildSystem. (#480)
  • A new BuildSystem key has been added, which by default builds DigitalTop (#480)
  • The IOBinders API has changed. IOBinders are now called inside of ChipTop and return a tuple3 of (IO ports, IO cells, harness functions). The harness functions are now called inside the TestHarness (this is analogous to the previous IOBinder functions). (#480)
  • IO cell models have been included in ChipTop. These can be replaced with real IO cells for tapeout, or used as-is for simulation. (#480)
  • CI now checks documentation changes (#485)
  • Support FireSim multi-clock (#468)
  • Allows make variables to be injected into build system (#499)
  • Various documentation/comment updates (#511,#517,#518,#537,#533,#542,#570,#569)
  • DSPTools documentation and example (#457, #568)
  • Support for no UART configs (#536)
  • Assemble firrtl-test.jar (#551)
  • Add SPI flash configurations (#546)
  • Add Dromajo + FireSim Dromajo simulation support (#523, #553, #560)
  • NVDLA integration (#505, #559, #580)
  • Add support for Hammer Sim (#512,#581,#580,#582)

Changed

  • Bump FireSim to version 1.10 (#574,#586)
  • Bump BOOM to version 3.0 (#523, #574,#580)
  • Bump Gemmini to version 0.3 (#575, #579)
  • Bump SPEC17 workload (#504, #574)
  • Bump Hwacha for fixes (#580)
  • Bump SHA3 for Linux 5.7rc3 support (#580)
  • Bump Rocket Chip to commit 1872f5d (including stage/phase compilation) (#503,#544)
  • Bump FireMarshal to version 1.9.0 (#574)
  • Chisel 3.3 and FIRRTL 1.3 (#503,#544)
  • BuildTop now builds a ChipTop dut module in the TestHarness by default (#480)
  • The default for the TOP make variable is now ChipTop (was Top) (#480)
  • Top has been renamed to DigitalTop (#480)
  • Bump libgloss (#508, #516, #580)
  • The default version of Verilator has changed to v4.034 (#547). Since this release adds enhanced support for Verilog timescales, the build detects if Verilator v4.034 or newer is visible in the build environment and sets default timescale flags appropriately.
  • Use Scalatests for FireSim CI (#528)
  • Cleanup Ariane pre-processing (#505)
  • Modify Issue Template to be more explicit (#557)
  • FireChip uses Chipyard generator (#554)
  • Have all non-synthesizeable constructs in test harness (#572)

Fixed

  • Aligned esp-tools spike with Gemmini (#509)
  • Fix debug rule in Verilator (#513)
  • Clean up SBT HTTP warnings (#526,#549)
  • Artefacts dropped in FireSim (#534)
  • Working IceNet + TestChipIP Unit Tests (#525)
  • Don't initialize non-existent Midas submodule (#552)
  • Verilator now supports +permissive similar to VCS (#565)
  • Fix direction of IOCell OE (#586)

Deprecated

  • N/A

Removed

  • Removed MIDAS examples CI (until a better solution that is faster is found) (#589)

[1.2.0] - 2020-03-14

A more detailed account of everything included is included in the dev to master PR for this release: #418

Added

  • Ring Topology System Bus NoC (#461)
  • Integration of the Ariane core into Chipyard (#448)
  • FireMarshal now generates an extra copy of linux kernel with dwarf debugging info for use in FirePerf (#427)
  • Add option to use blackboxed SimDRAM instead of SimAXIMem (#449)
  • Log init-submodules script (#433)
  • Moved the Docker image used for CI into Chipyard (prev. in BOOM) (#463)

Changed

  • Bump FireSim to 1.9.0 - Includes FirePerf TracerV Flame Graph features
  • IOBinders and BuildTop unification between FireChip and Chipyard (#390)
  • Bump BOOM to version 2.2.4 (#463)
  • Bump Gemmini to version 0.2 (#469)
  • Update to CircleCI 2.1 config. syntax and cleanup CI file (#421)
  • FireMarshal moved from FireSim to Chipyard (#415)
  • Rename config. mixins to config fragments (#451)

Fixed

  • git status should be clean. (Although you will need to manually cleanup the libgloss and qemu directories after first setup). (#411, #414)
  • Fix Hetero. BOOM + Rocket + Hwacha config (#413)
  • Fix VCS stdout (#417)
  • Add a git version check to the init scripts and make them work outside of the repo root (#459)
  • Fix generation of env.sh for zsh (#435)
  • GCD example bug (#465)

Deprecated

  • N/A

Removed

  • N/A

[1.1.0] - 2020-01-25

A more detailed account of everything included is included in the dev to master PR for this release: #367

Added

  • Gemmini generator and config (PR #356 )
  • Coremark + SPEC2017 benchmarks (PR #326, #338, #344)
  • Add Hwacha tests to CI (PR #284)
  • Add Hwacha tests to benchmark and assembly test suites (PR #284)
  • Added Hwacha + Large Boom Config (PR #315)
  • Add multi-core config with a small Rocket core attached on the side (PR #361 )
  • Add UART and Test Harness UART Adapter to all configurations (PR #348)
  • User can specify $RISCV directory in build-toolchains.sh (PR #334)
  • Checksum offload in IceNet (PR #364)

Changed

  • Rocketchip bumped to commit 4f0cdea, for chisel version 3.2.0 which includes Async reset support
  • FireSim release 1.8.0
  • FireMarshal release 1.8.0
  • BOOM release 2.2.3 (PR #397)
  • baremetal software toolchains, using libgloss and newlib instead of in-house syscalls.
  • Add toolchain specific env.sh (PR #304)
  • run-binary-like interface now dumps .log (stdout) and .out (stderr) files (PR #308)
  • Split the VLSI build dir on type of design (PR #331)
  • Reduce Ctags runtime and only look at scala, C, C++, and Python files (PR #346)
  • Top/Top-level-traits now behave as a configurable generator (PR #347)
  • Test suite makefrag generator includes Hwacha test suites (PR #342)

Fixed

  • Fix VLSI makefile requirements for SRAM generation (PR #318)
  • Only filter header files from common simulation files (PR #322)
  • Bump MacroCompiler for bugfixes (PR #332)
  • commit-on-master check has specific behavior based on source branch (PR #345)
  • Makefile filtering of blackbox resource files only omits .h files (PR #322)
  • Parallel make fixed (PR #386 #392)

Deprecated

  • No longer need to specify WithXTop, default Top is a generator for all Tops (PR #347)

Removed

  • N/A

[1.0.0] - 2019-10-19

Added

  • This repository used to be "project-template", a template for Chisel-based projects. Through tighter integration of multiple projects from the Berkeley Architecture Research group at UC Berkeley, this repository is re-released as Chipyard - a framework for agile hardware development of RISC-V based Systems-on-Chip.