litex/test/test_cpu.py

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#
# This file is part of LiteX.
#
# Copyright (c) 2021 Navaneeth Bhardwaj <navan93@gmail.com>
# SPDX-License-Identifier: BSD-2-Clause
import unittest
import pexpect
import sys
import os
class TestCPU(unittest.TestCase):
def boot_test(self, cpu_type, jobs, cpu_variant="standard"):
cmd = f'litex_sim --cpu-type={cpu_type} --cpu-variant={cpu_variant} --opt-level=O0 --jobs {jobs}'
litex_prompt = [b'\033\[[0-9;]+mlitex\033\[[0-9;]+m>']
is_success = True
with open("/tmp/test_boot_log", "wb") as result_file:
p = pexpect.spawn(cmd, timeout=None, logfile=result_file)
try:
match_id = p.expect(litex_prompt, timeout=1200)
except pexpect.EOF:
print('\n*** Premature termination')
is_success = False
except pexpect.TIMEOUT:
print('\n*** Timeout ')
is_success = False
if not is_success:
print(f'*** {cpu_type} Boot Failure')
with open("/tmp/test_boot_log", "r") as result_file:
print(result_file.read())
else:
p.terminate(force=True)
print(f'*** {cpu_type} Boot Success')
return is_success
def test_cpu(self):
tested_cpus = [
"cv32e40p", # (riscv / softcore)
"femtorv", # (riscv / softcore)
"firev", # (riscv / softcore)
"marocchino", # (or1k / softcore)
"naxriscv", # (riscv / softcore)
"serv", # (riscv / softcore)
"vexriscv", # (riscv / softcore)
"vexriscv_smp", # (riscv / softcore)
"microwatt", # (ppc64 / softcore)
"neorv32", # (riscv / softcore)
]
untested_cpus = [
"blackparrot", # (riscv / softcore) -> Broken install?
"cortex_m1", # (arm / softcore) -> Proprietary code.
"cortex_m3", # (arm / softcore) -> Proprieraty code.
"cv32e41p", # (riscv / softcore) -> Broken?
"cva5", # (riscv / softcore) -> Needs to be tested.
"cva6", # (riscv / softcore) -> Needs to be tested.
"eos_s3", # (arm / hardcore) -> Hardcore.
"gowin_emcu", # (arm / hardcore) -> Hardcore.
"ibex", # (riscv / softcore) -> Broken since 2022.11.12.
"lm32", # (lm32 / softcore) -> Requires LM32 toolchain.
"minerva", # (riscv / softcore) -> Broken install? (Amaranth?)
"mor1kx", # (or1k / softcore) -> Verilator compilation issue.
"picorv32", # (riscv / softcore) -> Verilator compilation issue.
"rocket", # (riscv / softcore) -> Not enough RAM in CI.
"zynq7000", # (arm / hardcore) -> Hardcore.
"zynqmp", # (aarch64 / hardcore) -> Hardcore.
]
jobs = os.cpu_count()
for cpu in tested_cpus:
with self.subTest(target=cpu):
self.assertTrue(self.boot_test(cpu, jobs))