feat: add comprehensive tests for AXI4 components and lifecycle controllers

- Implemented tests for AXI4 async bridge functionality, including transfer and warm flush scenarios.
- Added tests for AXI4 data crossbar to validate concurrent outstanding requests and ACL handling.
- Introduced clock frequency monitor tests to ensure detection of clock stop and restart events.
- Developed tests for extension DMA master to verify copy operations, tail strobe behavior, and timeout handling.
- Created tests for HP lifecycle controller to validate drain, flush, and forced reset functionalities.
- Updated existing test scripts to include new RTL components and ensure proper simulation configurations.

scripts/regress.py

@@ -16,6 +16,16 @@ from scripts.check_c_warnings import self_owned_warnings  # noqa: E402
 
 
 CI_SMOKE_APP_VALUE = "APP=ci_smoke"
+CI_SMOKE_SIM_VALUES = (
+    CI_SMOKE_APP_VALUE,
+    "LINK_TYPE=ld2_all_sram",
+    "VERILATOR_SIM_ARGS=--fast-flash",
+    "SOC_SIM_TIME=360",
+    "SIMU=VERILATOR",
+    "HAVE_SVA=YES",
+    "firmware",
+    "sim",
+)
 RTL_LINT_VALUES = ("SIMU=VERILATOR", "HAVE_SVA=YES", "rtl-lint")
 RTL_LINT_OBSERVATION_VALUES = (
     "SIMU=VERILATOR",
@@ -31,7 +41,7 @@ PR_COMMANDS = (
     ("configs/ci/ihp130-shell.mk", ("firmware",)),
     (
         "configs/ci/ihp130.mk",
-        (CI_SMOKE_APP_VALUE, "SIMU=VERILATOR", "HAVE_SVA=YES", "firmware", "sim"),
+        CI_SMOKE_SIM_VALUES,
     ),
     ("configs/ci/ihp130-debug.mk", ("SIMU=VERILATOR", "debug-sim")),
     ("configs/ci/ihp130.mk", ("SIMU=IVERILOG", "RTL_SIM_TIMEOUT=5200000", "sim-asm")),
@@ -47,6 +57,7 @@ PR_COMMANDS = (
     ),
     ("configs/ci/ihp130.mk", ("STA=OPENSTA", "sta")),
 )
+RTL_COMMANDS = PR_COMMANDS[:6]
 SMOKE_COMMANDS = (
     ("configs/ci/ihp130.mk", RTL_LINT_VALUES),
     ("configs/ci/ihp130.mk", (CI_SMOKE_APP_VALUE, "firmware")),
@@ -92,13 +103,15 @@ NETSIM_BOOT_PROFILES = frozenset(
 
 def pdk_pr_commands(profile: str) -> tuple[tuple[str, tuple[str, ...]], ...]:
     netsim_target = "netsim-boot" if profile in NETSIM_BOOT_PROFILES else "netsim"
+    verilator_values = (
+        CI_SMOKE_SIM_VALUES
+        if profile == "configs/ci/ihp130.mk"
+        else (CI_SMOKE_APP_VALUE, "SIMU=VERILATOR", "HAVE_SVA=YES", "firmware", "sim")
+    )
     return (
         (profile, RTL_LINT_VALUES),
         (profile, (CI_SMOKE_APP_VALUE, "firmware")),
-        (
-            profile,
-            (CI_SMOKE_APP_VALUE, "SIMU=VERILATOR", "HAVE_SVA=YES", "firmware", "sim"),
-        ),
+        (profile, verilator_values),
         (profile, ("SIMU=IVERILOG", "RTL_SIM_TIMEOUT=5200000", "sim-asm")),
         (profile, ("SYNTH=YOSYS", "synth")),
         (profile, ("STA=OPENSTA", "sta")),
@@ -121,6 +134,10 @@ def select_regression(
         if pdk is not None and pdk != "IHP130":
             raise ValueError("smoke regression supports only --pdk IHP130")
         return SMOKE_COMMANDS, SMOKE_PROFILES
+    if suite == "rtl":
+        if pdk is not None and pdk != "IHP130":
+            raise ValueError("rtl regression supports only --pdk IHP130")
+        return RTL_COMMANDS, PR_PROFILES
     if suite == "nightly-extra":
         if pdk is not None and pdk != "IHP130":
             raise ValueError("nightly-extra regression supports only --pdk IHP130")
@@ -207,7 +224,9 @@ def run_observation(command: list[str], root: Path, environment: dict[str, str])
 def main() -> int:
     parser = argparse.ArgumentParser(description="Run a supported retroSoC regression suite")
     parser.add_argument("--root", type=Path, required=True)
-    parser.add_argument("--suite", choices=("smoke", "pr", "nightly", "nightly-extra"), required=True)
+    parser.add_argument(
+        "--suite", choices=("smoke", "rtl", "pr", "nightly", "nightly-extra"), required=True
+    )
     parser.add_argument("--pdk", choices=tuple(PDK_PR_PROFILES), help="run one PDK matrix")
     parser.add_argument("--dry-run", action="store_true")
     parser.add_argument(