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Changelog

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

[1.10.0] - 2023-6-16

Adds superscalar in-order core, prefetchers, architectural checkpointing, examples for custom-chiptop/tapeout-chip/flat-chiptop. FireSim bumped with new local FPGA support: Xilinx VCU118 (w/XDMA), Xilinx Alveo U250/U280 (w/XDMA, in addition to previous Vitis support), RHSResearch NiteFury II (w/XDMA). FireSim now also supports Xcelium for metasims.

Added

Changed

Fixed

New Contributors

[1.9.1] - 2023-04-21

Various fixes for Linux boot, More Chip/bringup examples, Chisel 3.5.6 bump

Added

Changed

Fixed

[1.9.0] - 2023-03-23

Faster FIRRTL build support work CIRCT. New software support for RISC-V GCC12 and Linux 6.2. Various bumps and fixes of all submodules.

Added

Changed

Fixed

[1.8.1] - 2022-10-18

Various fixes and improvements, bump FireSim to 1.15.1.

Added

  • Bump chipyard to integrate mempress #1253

Changed

  • Default VCS simulators should generate FSDB #1252
  • Bump to FireSim 1.15.1 for various improvements #1258

Fixed

  • Revert to using sbt-launch.jar to run SBT #1251
  • Fix open files issue automatically on systems with a sufficiently large hard limit, to work around buildroot bug. #1258
  • Fixed PATH issues in generated env.sh #1258
  • Fixed scripts/repo-clean.sh to restore clean repo state again #1258

[1.8.0] - 2022-09-30

Adds support for NoC-based interconnects with Constellation (https://constellation.readthedocs.io/en/latest/). Switch to Conda for dependency/environment management. Bump Rocket Chip and other hardware libraries. Bump to FireSim 1.15.0.

Added

  • RTL: Support for packet-switched NoC-based TileLink main bus interconnects with Constellation
  • Conda: Support setting up a Chipyard development environment through Conda
  • Hammer: Fully open-source Sky130 flow tutorials in open-source and commercial tools
  • Hammer: IR key history
  • Hammer: Joules power analysis support
  • Hammer: Tempus STA support

Changed

  • RTL: Default memory-mapped addresses for fft/dsp/example MMIO accelerators changed to be non-overlapping
  • Repo: Update SiFive submodules to new chipsalliance upstreams
  • Rocketchip: Bumped to 1.6
  • Chisel: Bumped to 3.5.2
  • Firesim: Bumped to 1.15.0
  • Firemarshal: Bumped to latest

Fixed

  • RTL: Fix clock frequency rounding
  • Hammer: VCS FGP is now opt-in
  • Dromajo: Fix to variable definition
  • Testchipip: Fix write-strobe handling for 64B configurations
  • Build: Ignore dotfiles in lookup_srcs

[1.7.1] - 2022-07-06

FireSim bump for new builddriver command and various fixes. See FireSim 1.14.1 CHANGELOG.md.

Changed

  • Bump FireSim to 1.14.1

[1.7.0] - 2022-06-18

FireSim bump for local (on-premises) FPGA and distributed metasimulation support. Hammer now supports the OpenROAD open-source EDA tools for a fully open-source RTL-to-GDS VLSI flow.

Added

  • Add a FireSim config with no mem port (#1172)
  • Hammer OpenROAD plugins: Yosys (syn), OpenROAD (par), Magic (drc), Netgen (lvs) (#1183)

Changed

  • Bump FireSim to 1.14.0
  • Give the PRCI widgets valnames to clean up module naming (#1152)

Fixed

  • Add missing Apache commons dependencies (fixes #1144) (#1147)
  • Disable Boost for spike (#1168)
  • VCS enhancements (#1150)
    • Support multi-thread VCS simv option like FGP, Xprof etc.
    • Idle tsi in the target thread
  • Don't shallow clone submodules (revert #1064) (#1143)
  • Remove extra spaces in FPGA makefile (#1135)

[1.6.3] - 2022-04-06

FireSim bump for various fixes. Revert shallow cloning. Various CI fixes.

Fixed

[1.6.2] - 2022-03-01

Minor fixes to FireSim.

Fixed

  • Bump to FireSim 1.13.3 (#1134)

[1.6.1] - 2022-03-01

Minor fixes to FireSim.

Fixed

  • Bump to FireSim 1.13.2 (#1133)

[1.6.0] - 2022-02-15

A more detailed account of everything included is included in the dev to master PR for this release: ucb-bar/chipyard#913

Added

  • Diplomatic IOBinder-like approach to setting up PRCI across different deployment targets (#900)
  • Default set of MMIO-controlled reset-setters and clock-gaters (#900)
  • Added simulation makefile options torture and torture-overnight for running Torture (#992)
  • FSDB waveform support (#1072, #1102)
  • Use GitHub Actions for CI (#1004, #999, #1090, #1092)
  • Add MAKE variable in build-toolchains.sh (#1021)
  • Cleanup GH issue and PR templates (#1029, #1032)
  • Add support for Ibex core (#979)
  • Add system bus width fragment (#1071)
  • Add support for FSDB waveform files (#1072, #1102)
  • Document simulator timeout settings (#1094)
  • Add FFT Generator (#1067)
  • Add waveforms for post-PNR and power (#1108)
  • Have PRCI control registers use clock of corresponding bus (#1109)
  • Add check to verify that user is running on tagged release (#1114)
  • Hammer tutorial in Sky130 (#1115)

Changed

  • Bump CVA6 (#909 )
  • Bump Hammer tutorial for ASAP7 r1p7 (#934)
  • Use Published Chisel, FIRRTL, Treadle, FIRRTLInterpreter packages instead of building from source. #1054
  • Change serialTL width to 32. Speeds up simulations (#1040)
  • Update how sbt flag is overridden (by using SBT_BIN variable) (#1041)
  • Use published dependencies for Chisel, FIRRTL, Treadle, and FIRRTLInterpreter (#1054)
  • Split ConfigFragments.scala into multiple files (with more organization) (#1061)
  • Avoid initializing nvdla software by default (#1063)
  • Update ASAP to 1.7 in Hammer (#934)
  • Shorten Gemmini docs and point to repo (#1078)
  • Bump Gemmini to 0.6.2 (#1083)
  • Use python2 for tracegen script (#1107)
  • Bump to Chisel/FIRRTL 3.5.1 (#1060, #1113)
  • Bump to FireMarshal 1.12.1 (#1116)
  • Bump to FireSim 1.13.0 (#1118 )

Fixed

  • Fix UART portmap for Arty (#968)
  • Support changing make variable MODEL from the cmdline (#1030)
  • Force FIRRTL to 1.4.1 (#1052)
  • Fix MMIO IOBinder (#1045)
  • Mask fd warning when running make (#1057)
  • Fix Sodor 5-stage hazard check (#1086)
  • Fix Sodor val io issue (#1089)
  • Fix BOOM reference in Readme (#1104)
  • Fix waveforms for post-P&R power analysis (#1108)

Removed

  • Remove duplicate WithUARTIOCells fragment (#1047)
  • Remove MaxPermSize in java variables (#1082)
  • Remove support for CircleCI (#1105)

[1.5.0] - 2021-06-13

A more detailed account of everything included is included in the dev to master PR for this release: ucb-bar/chipyard#773

Added

  • FireMarshal support for FPGA prototypes (#849)
  • Hammer update to include power estimation flows, rail analysis, hierarchical sim support, and improved ASAP7 plugin with dummy SRAMs (#886)
  • Docker image
  • Support specifying architecture when building tools. (#802)
  • Add Config fragments: WithMultiRoCCFromBuildRoCC, PMP (#809, #821)
  • Add support for simulating an AXI memory interface over the default TL serial link (#812)
  • Add option to add async queues between chip-serialIO and harness serdes (#828)
  • Spike support for multiple extensions, and add sha3 spike model to esp-tools (#837, #897)
  • Default generator support for I2C and PWM (#885)

Changed

  • Gemmini bump to version 0.5
  • FireSim bump to version 1.12
  • FireMarshal bump to version 1.12
  • Changes default FireSim frequency from 3.2 GHz (dual clock domains) to 1 GHz (single clock domain)
  • Bump pygments from 2.2.0 to 2.7.4 in docs
  • Hammer tutorial example is now a TinyRocketConfig (#886)
  • Sha3 Spike model moved from sha3 repo to esp-isa-sim

Fixed

  • Avoid permissions conflict on shared protocjar.webcache (#774)
  • Passing MBus clock frequency to SimDRAM (#790)
  • Fix parsing of --ignore-qemu option (#791)
  • FPGA Prototype - Support Adding Pullup R's to Bringup GPIOs (#806)
  • Use "tile" instead of "core" to assign frequencies in WithTileFrequency config. fragment (#807)
  • Fix IOCell generation for clock and reset to use IOCellKey (#824)
  • Fix TileResetCtrl to be ahead of reset synchronizers (#826)
  • Fix memory alignment in character count RoCC test (#853)
  • Synchronize JTAG reset to JTAG.TCK. (#859)
  • Updates to system requirements scripts (#874)
  • Rocket-dsp-utils integration and cleanup for dsptools (#888)

Removed

  • Dummy DCO collateral from Hammer tutorial example (#886)

[1.4.0] - 2021-01-19

A more detailed account of everything included is included in the dev to master PR for this release: ucb-bar/chipyard#599

Added

  • OpenSBI Support (#633)
  • Support for Diplomacy-based clocking (#614, #682)
  • Support for Diplomacy-based IOBinders (#699)
  • Sodor core integration (#648)
  • Simple Divider-Only PLL for Multiclock RTL Simulation (#676)
  • Enable parallel Hammer simulations (#600)
  • OpenRoad nangate45 Hammer backend (#608)
  • Add support for "LBWIF" backing memory through serialized TileLink (#673)
  • Add variable to control FIRRTL logging verbosity (#627)
  • Add RANDOM_SEED variable to set random init for VCS and Verilator simulations (#629)
  • Fast LoadMem support (#635)
  • Multithreaded Verilator (#654)
  • Support for custom Verilator optimization flags (#728)
  • Add config-fragment to use broadcast manager instead of L2 for coherence (#721)
  • Added optional ignore QEMU flag to build-toolchains.sh (#709)
  • Split JAVA_ARGS into JAVA_OPTS and SBT_OPTS (#719)
  • Experimental support for SBT thin client. Enable with export ENABLE_SBT_THIN_CLIENT=1 (sbt/sbt#5620) (#719)
  • Helper make targets to launch SBT console (sbt) and shutdown/start thin server (<start/shutdown>-sbt-server) (#719)
  • Allow users to override CC and CXX for build-toolchains.sh (#739)
  • Support VCU118/Arty local FPGA prototypes through fpga-shells (#747)
  • A 16-core LargeBOOM configuration has been added to FireChip to highlight the resource-optimizing platform configurations added to FireSim in firesim/firesim#636 (#756)

Changed

  • Bump Chisel to 3.4.1.x (#742, #719, #751)
  • Bump RocketChip to a7b016e (#742, #719)
  • Bump FireSim to 1.11
  • Bump Gemmini to v0.5
  • Bump to SBT 1.4.4 (#719)
  • Split IOBinders into IOBinders and HarnessBinders | punch out clocks to harness for simwidgets and bridges (#670, #674)
  • Have FireSim build recipes use Chipyard configs rather than FireChip configs (#695)
  • FireMarshal boot default to OpenSBI rather than BBL (#633)
  • Override default baud rate for FireChip (#625)
  • DTM only supports HTIF in DMI mode (#672)
  • Unify HTIF implementation between Chipyard and Firesim (#683)
  • Renamed Ariane to CVA6 (#710)
  • build.sbt refactoring/fixes for RC/Chisel/Firrtl bump (#719)
  • Use ; x; y; z; syntax to run multiple SBT commands (#719)
  • CI Improvements: Cleanup check-commit printout. Don't transfer .git folders. (#750)

Fixed

  • Multi-SHA3 configs (#597)
  • Allow dramsim_ini folder to be set at the command line (#598)
  • Emit HTIF Node in device tree (#607)
  • Fixes for AXI4 MMIO and FBus ports (#618)
  • Only punch realistic subset of DebugIO through chiptop | default to JTAG+Serial (#664)
  • IceNet bug fixes (#720)
  • smartelf2hex.sh bug fixes (#677, #693)
  • env.sh zsh compatibility (#705)
  • build-toolchains.sh bug fixes (#745 #739)
  • Bump Dromajo to work with older version of glibc (#709)

Removed

  • Support for synchronous ChipTop reset (#703)
  • Split JAVA_ARGS into JAVA_OPTS and SBT_OPTS (#719)

[1.3.0] - 2020-05-31

A more detailed account of everything included is included in the dev to master PR for this release: ucb-bar/chipyard#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: ucb-bar/chipyard#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: ucb-bar/chipyard#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.