Files
chipyard/scripts/split-mems-conf.py

66 lines
2.3 KiB
Python
Executable File

#!/usr/bin/env python
import os
import json
import argparse
from typing import List, Optional
# Schema of json emitted by circt
"""
{
"module_name": "mem_ext",
"depth": 512,
"width": 64,
"masked": true,
"read": false,
"write": false,
"readwrite": true,
"mask_granularity": 8,
"extra_ports": [],
"hierarchy": [
"TestHarness.ram.srams.mem.mem_ext"
]
}
"""
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='Use CIRCT (firtool) smems JSONs to create DUT and test harness smems confs')
parser.add_argument('--in-smems-conf', type=str, required=True, help='Overall smems conf file that contains all memory definitions')
parser.add_argument('--in-dut-smems-json', type=str, required=True, help='JSON indicating which mem modules are in the DUT')
parser.add_argument('--in-model-smems-json', type=str, required=True, help='JSON indicating which mem modules are in the top-most level module (but not in the DUT)')
parser.add_argument('--out-dut-smems-conf', type=str, required=True, help='Smems conf with only DUT mem module definitions')
parser.add_argument('--out-model-smems-conf', type=str, required=True, help='Smems conf with only top-most level mem module definitions (not including DUT modules)')
args = parser.parse_args()
with open(args.in_smems_conf) as isc, \
open(args.in_dut_smems_json) as idsj, \
open(args.in_model_smems_json) as itsj:
idsj_data = json.load(idsj)
itsj_data = json.load(itsj)
dut_mods = set()
for e in idsj_data:
dut_mods.add(e['module_name'])
model_mods = set()
for e in itsj_data:
model_mods.add(e['module_name'])
with open(args.out_dut_smems_conf, "w") as odsc, \
open(args.out_model_smems_conf, "w") as otsc:
for l in isc:
sl = l.split()
# the line can't be split then stop immediately (normally an empty file)
if len(sl) > 2:
name = sl[1]
if name in dut_mods:
odsc.write(l)
elif name in model_mods:
otsc.write(l)
else:
assert False, "Unable to find smem CONF module in firtool emitted JSON files."
else:
exit(0)