Update google_riscv-dv to chipsalliance/riscv-dv@71666eb

Update code from upstream repository
https://github.com/chipsalliance/riscv-dv to revision
71666ebacd69266b1abb7cdbad5e1897ce5884e6

* Fixes to support RV32 (Maciej Kurc)
* Extend CI matrix (Eryk Szpotanski)
* Add pyflow test (Grzegorz Placzek)
* Allow the CI to run from any branch and any PR (Maciej Kurc)
* [pmp] Remove MSECCFG reads from trap handler when Smepmp is disabled
  (Marno van der Maas)

Signed-off-by: Greg Chadwick <gac@lowrisc.org>

vendor/google_riscv-dv.lock.hjson

@@ -9,6 +9,6 @@
   upstream:
   {
     url: https://github.com/chipsalliance/riscv-dv
-    rev: 08b12066b34c9728f706e45098ba502a36d7ca59
+    rev: 71666ebacd69266b1abb7cdbad5e1897ce5884e6
   }
 }

vendor/google_riscv-dv/.github/scripts/code_fixup.py

@@ -0,0 +1,106 @@
+#!/usr/bin/env python3
+import argparse
+import re
+
+# =============================================================================
+
+class AssemblyLine:
+    """
+    Simple assembly line representation
+    """
+
+    RE_INSTR = re.compile(r"(?P<mnemonic>\S+)\s+(?P<operands>.*)")
+
+    def __init__(self, text):
+        self.text       = text
+        self.mnemonic   = None
+        self.operands   = None
+
+        # Strip label if any
+        if ":" in text:
+            text = text.split(":", maxsplit=1)[1]
+
+        # Strip comment if any
+        if "#" in text:
+            text = text.split("#", maxsplit=1)[0]
+
+        # Get instruction and operands
+        m = self.RE_INSTR.match(text.strip())
+        if m is not None:
+
+            if m.group("mnemonic")[0] == ".":
+                return
+
+            self.mnemonic = m.group("mnemonic").lower()
+            self.operands = [op.strip() for op in m.group("operands").split()]
+
+    def __str__(self):
+        return self.text
+
+# =============================================================================
+
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "-i",
+        type=str,
+        required=True,
+        help="Input assembly file"
+    )
+    parser.add_argument(
+        "-o",
+        type=str,
+        required=True,
+        help="Output assembly file"
+    )
+
+    args = parser.parse_args()
+
+    max_nops = 10
+
+    # Read and parse
+    with open(args.i, "r") as fp:
+        inp_lines = [AssemblyLine(l) for l in fp.readlines()]
+
+    # Identify a delayed write instruction followed by another one which writes
+    # to the same register
+    out_lines = []
+    for i in range(len(inp_lines)):
+        line = inp_lines[i]
+        out_lines.append(line)
+
+        # Bypass
+        if not line.mnemonic:
+            continue
+
+        # Check if it is a delayed write. If not then bypass
+        is_delayed = line.mnemonic in ["div", "divu", "rem", "remu", "lw"]
+        if not is_delayed:
+            continue
+
+        # Get next 2 instructions
+        following = []
+        for j in range(i+1, len(inp_lines)):
+            if inp_lines[j].mnemonic is not None:
+                following.append(inp_lines[j])
+                if len(following) >= 2:
+                    break
+
+        # If any of the instructions targets the same register insert NOPs
+        dst = line.operands[0]
+        for j, l in enumerate(following):
+            if l.operands and l.operands[0] == dst:
+                nops = max(0, max_nops - j)
+                for _ in range(nops):
+                    out_lines.append(" " * 18 + "nop # FIXME: A fixup not to make VeeR cancel a delayed write\n")
+                break
+
+    # Write
+    with open(args.o, "w") as fp:
+        for l in out_lines:
+            fp.write(str(l))
+
+
+if __name__ == "__main__":
+    main()

vendor/google_riscv-dv/.github/scripts/parse_testlist.py

@@ -0,0 +1,26 @@
+import sys
+from json import dumps
+from yaml import load, Loader
+from typing import Generator
+
+
+def parse_yaml(path: str) -> Generator[str, None, None]:
+    with open(path, 'rb') as fd:
+        tests = load(fd, Loader=Loader)
+    for test in tests:
+        if 'import' in test:
+            import_path = test['import'].split('/', 1)[1]
+            yield from parse_yaml(import_path)
+        elif 'test' in test:
+            yield test['test']
+
+
+if __name__ == "__main__":
+    if len(sys.argv) == 2:
+        testlist = parse_yaml(f'target/{sys.argv[1]}/testlist.yaml')
+    else:
+        testlist = parse_yaml('yaml/base_testlist.yaml')
+    testlist = list(testlist)
+    # remove, will cause incomplete sim, need customized RTL
+    testlist.remove("riscv_csr_test")
+    print(dumps(testlist))

vendor/google_riscv-dv/.github/workflows/build-spike.yml

@@ -0,0 +1,63 @@
+# https://github.com/chipsalliance/Cores-VeeR-EL2/blob/774510e43f5408ec2b818db8f865027bc9be97b8/.github/workflows/build-spike.yml
+
+name: Spike Build
+
+on:
+  workflow_call:
+
+jobs:
+  verilator:
+    name: Build Spike
+    runs-on: ubuntu-latest
+    env:
+      TOOL_NAME: spike
+      TOOL_VERSION: d70ea67d
+      DEBIAN_FRONTEND: "noninteractive"
+
+    steps:
+      - name: Setup Cache Metadata
+        id: cache_metadata
+        run: |
+          cache_date=$(date +"%Y_%m_%d")
+          cache_name=cache_${{ env.TOOL_NAME }}_${{ env.TOOL_VERSION }}
+          echo "Cache date: "$cache_date
+          echo "Cache name: "$cache_name
+          echo "cache_date=$cache_date" >> "$GITHUB_ENV"
+          echo "cache_name=$cache_name" >> "$GITHUB_ENV"
+
+      - name: Setup cache
+        uses: actions/cache@v3
+        id: cache
+        timeout-minutes: 60
+        with:
+          path: |
+            /opt/spike
+            /opt/spike/.cache
+          key: ${{ env.cache_name }}_${{ env.cache_date }}
+          restore-keys: ${{ env.cache_name }}_
+
+      - name: Install prerequisities
+        if: ${{ steps.cache.outputs.cache-hit != 'true' }}
+        run: |
+          sudo apt -qqy update && sudo apt -qqy --no-install-recommends install \
+            git build-essential cmake ccache device-tree-compiler
+
+      - name: Build Spike
+        if: ${{ steps.cache.outputs.cache-hit != 'true' }}
+        run: |
+          export CCACHE_DIR=/opt/spike/.cache
+          ccache --show-config | grep cache_dir
+          git clone https://github.com/riscv-software-src/riscv-isa-sim spike
+          export CC="ccache gcc"
+          export CXX="ccache g++"
+          pushd spike
+            git checkout ${{ env.TOOL_VERSION }}
+            mkdir build
+            cd build
+            ../configure --prefix=/opt/spike
+            make -j`nproc`
+            make install
+          popd
+          rm -rf /opt/spike/include # Remove include and lib to save space
+          rm -rf /opt/spike/lib
+