Files
retroSoC/tests/test_rib.py
T
maksyuki de32aa2979 feat: add AXI4 interconnect testbench and enhance existing tests
- Introduced a new testbench for the AXI4 interconnect () to validate fault classification for decode and access errors.
- Updated  and  to reflect changes in bus naming conventions.
- Enhanced  to include AXI4-Stream interface checks and validate stream data transfers.
- Modified  to integrate AXI4-Stream interfaces for improved DMA testing.
- Added new Python tests () to verify AXI4 to RIBP burst bridge functionality and interconnect fault classification.
- Updated existing tests to include AXI4 interfaces and ensure proper error handling and response validation.
- Adjusted memory map generation and test setups to accommodate new AXI4 interface requirements.
2026-08-12 12:30:12 +08:00

123 lines
4.2 KiB
Python

"""Directed tests for the SoC-owned RIB building blocks."""
from __future__ import annotations
import shutil
import subprocess
import sys
from pathlib import Path
ROOT = Path(__file__).resolve().parents[1]
def test_bus_preserves_incr4_and_rejects_illegal_bursts(tmp_path: Path) -> None:
iverilog = shutil.which("iverilog")
vvp = shutil.which("vvp")
if iverilog is None or vvp is None:
return
memory_map = tmp_path / "memory_map"
subprocess.run(
[
sys.executable,
str(ROOT / "rtl/mini/address_map/generate_memory_map.py"),
"--map",
str(ROOT / "rtl/mini/address_map/memory_map.json"),
"--output-dir",
str(memory_map),
"--have-sram-if",
"NO",
],
check=True,
)
source_list = tmp_path / "rib_bus.fl"
source_list.write_text(
"\n".join(
[
"+define+SV_ASSRT_DISABLE",
f"+incdir+{memory_map / 'rtl'}",
f"+incdir+{ROOT / 'rtl/mini/top'}",
f"+incdir+{ROOT / 'rtl/managed/clusterip/common/rtl'}",
str(ROOT / "rtl/managed/clusterip/common/rtl/interface/axi4_if.sv"),
str(ROOT / "rtl/managed/clusterip/common/rtl/interface/ribp_if.sv"),
str(ROOT / "rtl/managed/clusterip/common/rtl/interface/ram_if.sv"),
str(ROOT / "rtl/mini/top/rib_if.sv"),
str(ROOT / "rtl/managed/clusterip/common/rtl/utils/register.sv"),
str(ROOT / "rtl/managed/clusterip/common/rtl/utils/spill_register.sv"),
str(ROOT / "rtl/mini/top/ribp2rib.sv"),
str(ROOT / "rtl/mini/top/rib2ribp.sv"),
str(ROOT / "rtl/mini/top/rib_error_slave.sv"),
str(ROOT / "rtl/mini/top/rib2ram.sv"),
str(ROOT / "rtl/mini/top/bus.sv"),
str(ROOT / "tests/rtl/rib_bus_tb.sv"),
"",
]
),
encoding="utf-8",
)
converted = tmp_path / "rib_bus_tb.v"
subprocess.run(
[
sys.executable,
str(ROOT / "rtl/mini/script/convt_sv2v.py"),
"-f",
str(source_list),
"--output",
str(converted),
],
check=True,
)
simulation = tmp_path / "rib_bus_tb"
subprocess.run(
[iverilog, "-g2012", "-s", "rib_bus_tb", "-o", str(simulation), str(converted)],
check=True,
)
result = subprocess.run([vvp, str(simulation)], text=True, capture_output=True, check=True)
assert "RIB burst arbitration and protocol test passed" in result.stdout
def test_burst_sram_preserves_data_and_backpressure(tmp_path: Path) -> None:
iverilog = shutil.which("iverilog")
vvp = shutil.which("vvp")
if iverilog is None or vvp is None:
return
source_list = tmp_path / "rib2ram.fl"
source_list.write_text(
"\n".join(
[
"+define+SV_ASSRT_DISABLE",
f"+incdir+{ROOT / 'rtl/mini/top'}",
f"+incdir+{ROOT / 'rtl/managed/clusterip/common/rtl'}",
str(ROOT / "rtl/managed/clusterip/common/rtl/interface/ram_if.sv"),
str(ROOT / "rtl/mini/top/rib_if.sv"),
str(ROOT / "rtl/managed/clusterip/common/rtl/utils/register.sv"),
str(ROOT / "rtl/managed/clusterip/common/rtl/utils/spill_register.sv"),
str(ROOT / "rtl/mini/top/rib2ram.sv"),
str(ROOT / "tests/rtl/rib2ram_tb.sv"),
"",
]
),
encoding="utf-8",
)
converted = tmp_path / "rib2ram_tb.v"
subprocess.run(
[
sys.executable,
str(ROOT / "rtl/mini/script/convt_sv2v.py"),
"-f",
str(source_list),
"--output",
str(converted),
],
check=True,
)
simulation = tmp_path / "rib2ram_tb"
subprocess.run(
[iverilog, "-g2012", "-s", "rib2ram_tb", "-o", str(simulation), str(converted)],
check=True,
)
result = subprocess.run([vvp, str(simulation)], text=True, capture_output=True, check=True)
assert "RIB SRAM pipeline test passed" in result.stdout