Update lowrisc_ibex to lowRISC/ibex@df88055a

Update code from upstream repository
https://github.com/lowRISC/ibex.git to revision
df88055aa38868451ce90d7fcc2bbf172a2dc8a0

* [util] Update check_tool_requirements.py (Gary Guo)
* [ci] Run CI in merge queue and not master (James Wainwright)
* [CI] change pr_lint to run on pull_request instead of target (Gary
  Guo)
* [CI] add GitHub action version of the CI (Gary Guo)
* [rtl] Avoid name collision in ibex_pmp.sv (Rupert Swarbrick)
* [dv] Fix performance counter printing in simple system (Rupert
  Swarbrick)
* Fix spelling of separator (Rupert Swarbrick)
* [doc] Describe counters more explicitly in simple_system README
  (Rupert Swarbrick)
* Update lowrisc_ip to lowRISC/opentitan@e6a0e9a136 (Rupert Swarbrick)
* [dv] Add an extra key to common_project_cfg.hjson (Rupert Swarbrick)
* [verilator] Slight refactor in ibex_tracer to avoid BLKSEQ warning
  (Rupert Swarbrick)
* [verilator] Waive MULTIDRIVEN warning in ibex_tracer.sv (Rupert
  Swarbrick)
* [ibex_pmp/lint] Declare functions before using them (Michael
  Schaffner)
* Update google_riscv-dv to chipsalliance/riscv-dv@71666eb (Greg
  Chadwick)
* [dv,vendor] Pin bitstring version to fix gen_csr_test.py (Greg
  Chadwick)
* [dv] Fix ibex_cmd.py (Greg Chadwick)
* Port directed_test_schema.py to recent versions of Pydantic (Rupert
  Swarbrick)
* [doc] Bump minimum Verilator version (Rupert Swarbrick)
* Tweak ibex_cmd.py to fail more cleanly (Rupert Swarbrick)
* Remove (empty) Verible waiver file (Rupert Swarbrick)
* [doc] Fix background of Icache block (Marno van der Maas)
* [doc] Fix background in block diagram (Marno van der Maas)
* [ci] Consolidate Verible linting workflow into one stage (James
  Wainwright)
* [credits] Add names of recent contributors (Marno van der Maas)
* Update google_riscv-dv to chipsalliance/riscv-dv@08b1206 (Marno van
  der Maas)
* [vendor] Use new RISCV-DV URL (Marno van der Maas)
* [dv,doc] Point reference to lowRISC branch (Marno van der Maas)
* Update riscv-isa-sim to lowRISC/riscv-isa-sim@a4b823a1 (Marno van
  der Maas)
* Update riscv-isa-sim to lowRISC/riscv-isa-sim@a7c5d5d8 (Marno van
  der Maas)
* [vendor] Use lowRISC repo for vendoring (Marno van der Maas)
* Update README.md (Katharina)
* Remove initialisation for sim_finish in simulator_ctrl.sv (Rupert
  Swarbrick)
* Use correct width for 1-bit inputs in ibex_simple_system.sv (Rupert
  Swarbrick)
* Use named constant for default RAM behaviour (Rupert Swarbrick)

Signed-off-by: Gary Guo <[email protected]>

vendor/lowrisc_ibex.lock.hjson

@@ -9,6 +9,6 @@
   upstream:
   {
     url: https://github.com/lowRISC/ibex.git
-    rev: 7139313ad3964353898ed446105f13916925a1ed
+    rev: df88055aa38868451ce90d7fcc2bbf172a2dc8a0
   }
 }

vendor/lowrisc_ibex/CREDITS.md

@@ -13,34 +13,68 @@ in the form of source code, bug reports, testing, marketing, or any other form,
 please feel free to open a pull request to get your name added to this file.
 
 - Alex Bradbury
+- Andreas Kurth
 - Andreas Traber
 - Antonio Pullini
+- Bryan Cantrill
+- Canberk Topal
+- Cathal Minnock
+- Daniel Mlynek
+- Dawid Zimonczyk
 - Eunchan Kim
+- Felix Yan
+- Flavian Solt
 - Florian Zaruba
 - Francesco Conti
+- Gary Guo
 - Germain Haugou
 - Greg Chadwick
+- Harry Callahan
+- Hai Hoang Dang
+- Henner Zeller
+- Hodjat Asghari Esfeden
 - Igor Loi
 - Ioannis Karageorgos
-- Markus Wegmann
 - Ivan Ribeiro
+- Karol Gugala
+- Leon Woestenberg
+- Luís Marques
+- Marek Pikuła
+- Markus Wegmann
+- Marno van der Maas
 - Matthias Baer
+- Mehmet Burak Aykenar
 - Michael Gautschi
+- Michael Gielda
+- Michael Munday
+- Michael Platzer
 - Michael Schaffner
 - Nils Graf
 - Noah Huesser
 - Noam Gallmann
 - Pasquale Davide Schiavone
+- Paul O'Keeffe
 - Philipp Wagner
 - Pirmin Vogel
+- Prajwala Puttappa
 - Rahul Behl
 - Rhys Thomas
 - Renzo Andri
 - Robert Schilling
+- Rupert Swarbick
+- Sam Elliott
 - Scott Johnson
+- Stefan Mach
+- Stefan Tauner
 - Stefan Wallentowitz
 - Sven Stucki
 - Tao Liu
 - Tobias Wölfel
 - Tom Roberts
+- Tudor Timi
 - Udi Jonnalagadda
+- Vladimir Rozic
+- Yuichi Sugiyama
+- Yusef Karim
+- Zachary Snow
+- Zeeshan Rafique

vendor/lowrisc_ibex/ci/install-build-deps.sh

@@ -21,6 +21,10 @@ if [ "$(id -u)" -ne 0 ]; then
   SUDO_CMD="sudo "
 fi
 
+if [ -z "$GITHUB_ACTIONS" ]; then
+  GITHUB_PATH=/dev/null
+fi
+
 case "$ID-$VERSION_ID" in
   ubuntu-16.04|ubuntu-18.04|ubuntu-20.04)
     # Curl must be available to get the repo key below.
@@ -57,12 +61,14 @@ case "$ID-$VERSION_ID" in
     $SUDO_CMD chmod 777 /tools/riscv-isa-sim
     $SUDO_CMD tar -C /tools/riscv-isa-sim -xvzf ibex-cosim-"$IBEX_COSIM_VERSION".tar.gz --strip-components=1
     echo "##vso[task.prependpath]/tools/riscv-isa-sim/bin"
+    echo "/tools/riscv-isa-sim/bin" >> $GITHUB_PATH
 
     wget https://storage.googleapis.com/verilator-builds/verilator-"$VERILATOR_VERSION".tar.gz
     $SUDO_CMD mkdir -p /tools/verilator
     $SUDO_CMD chmod 777 /tools/verilator
     $SUDO_CMD tar -C /tools/verilator -xvzf verilator-"$VERILATOR_VERSION".tar.gz
     echo "##vso[task.prependpath]/tools/verilator/$VERILATOR_VERSION/bin"
+    echo "/tools/verilator/$VERILATOR_VERSION/bin" >> $GITHUB_PATH
     # Python dependencies
     #
     # Updating pip and setuptools is required to have these tools properly
@@ -81,6 +87,7 @@ case "$ID-$VERSION_ID" in
     $SUDO_CMD mkdir -p /tools/verible && $SUDO_CMD chmod 777 /tools/verible
     tar -C /tools/verible -xf verible.tar.gz --strip-components=1
     echo "##vso[task.prependpath]/tools/verible/bin"
+    echo "/tools/verible/bin" >> $GITHUB_PATH
     ;;
 
   *)
@@ -96,3 +103,4 @@ curl -Ls -o build/toolchain/rv32-toolchain.tar.xz "$TOOLCHAIN_URL"
 $SUDO_CMD mkdir -p /tools/riscv && $SUDO_CMD chmod 777 /tools/riscv
 tar -C /tools/riscv -xf build/toolchain/rv32-toolchain.tar.xz --strip-components=1
 echo "##vso[task.prependpath]/tools/riscv/bin"
+echo "/tools/riscv/bin" >> $GITHUB_PATH

vendor/lowrisc_ibex/ci/run-cosim-test.sh

@@ -27,12 +27,14 @@ echo "Running $TEST_NAME with co-simulation"
 build/lowrisc_ibex_ibex_simple_system_cosim_0/sim-verilator/Vibex_simple_system --meminit=ram,$TEST_ELF
 if [ $? != 0 ]; then
   echo "##vso[task.logissue type=error]Running % failed co-simulation testing"
+  echo "::error::Running % failed co-simulation testing"
   exit 1
 fi
 
 grep 'FAILURE' ibex_simple_system.log
 if [ $? != 1 ]; then
   echo "##vso[task.logissue type=error]Failure seen in $TEST_NAME log"
+  echo "::error::Failure seen in $TEST_NAME log"
   echo "Log contents:"
   cat ibex_simple_system.log
   exit 1
@@ -42,6 +44,7 @@ if [ $SKIP_PASS_CHECK != 1 ]; then
   grep 'PASS' ibex_simple_system.log
   if [ $? != 0 ]; then
     echo "##vso[task.logissue type=error]No pass seen in $TEST_NAME log"
+    echo "::error::No pass seen in $TEST_NAME log"
     echo "Log contents:"
     cat ibex_simple_system.log
     exit 1

vendor/lowrisc_ibex/ci/vars.env

@@ -0,0 +1,15 @@
+# Copyright lowRISC contributors.
+# Licensed under the Apache License, Version 2.0, see LICENSE for details.
+# SPDX-License-Identifier: Apache-2.0
+
+# Pipeline variables, used by the public and private CI pipelines
+# Quote values to ensure they are parsed as string (version numbers might
+# end up as float otherwise).
+VERILATOR_VERSION=v4.104
+IBEX_COSIM_VERSION=15fbd568
+RISCV_TOOLCHAIN_TAR_VERSION=20220210-1
+RISCV_TOOLCHAIN_TAR_VARIANT=lowrisc-toolchain-gcc-rv32imcb
+RISCV_COMPLIANCE_GIT_VERSION=844c6660ef3f0d9b96957991109dfd80cc4938e2
+VERIBLE_VERSION=v0.0-2135-gb534c1fe
+# lowRISC-internal version numbers of Ibex-specific Spike builds.
+SPIKE_IBEX_VERSION=20220817-git-eccdcb15c3e51b4f7906c7b42fb824f24a4338a2