mirror of
https://github.com/TinyTapeout/tt-support-tools.git
synced 2026-11-03 04:36:09 +01:00
582 lines
23 KiB
Python
582 lines
23 KiB
Python
import yaml
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import glob
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import os
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import logging
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import re
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import subprocess
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import gdstk
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import cairosvg
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import csv
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import json
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import git_utils
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import git
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import shutil
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CELL_URL = 'https://skywater-pdk.readthedocs.io/en/main/contents/libraries/sky130_fd_sc_hd/cells/'
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with open(os.path.join(os.path.dirname(__file__), 'tile_sizes.yaml'), 'r') as stream:
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tile_sizes = (yaml.safe_load(stream))
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class Project():
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def __init__(self, index, git_url, local_dir, args, fill=False):
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self.git_url = git_url
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self.args = args
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self.index = index
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self.fill = fill
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self.local_dir = local_dir
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def post_clone_setup(self):
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self.load_yaml()
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self.setup_source_files()
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self.load_metrics()
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def load_metrics(self):
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try:
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with open(self.get_metrics_path()) as fh:
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self.metrics = next(csv.DictReader(fh))
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except FileNotFoundError:
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self.metrics = {}
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def check_ports(self):
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top = self.get_macro_name()
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sources = [os.path.join(self.local_dir, 'src', src) for src in self.src_files]
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source_list = " ".join(sources)
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json_file = 'ports.json'
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yosys_cmd = f"yosys -qp 'read_verilog -lib -sv {source_list}; hierarchy -top {top} ; proc; write_json {json_file}'"
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p = subprocess.run(yosys_cmd, shell=True)
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if p.returncode != 0:
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logging.error(f"yosys port read failed for {self}")
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exit(1)
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with open(json_file) as fh:
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ports = json.load(fh)
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os.unlink(json_file)
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module_ports = ports['modules'][top]['ports']
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required_ports = [
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['clk', 1],
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['ena', 1],
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['rst_n', 1],
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['ui_in', 8],
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['uio_in', 8],
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['uio_oe', 8],
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['uio_out', 8],
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['uo_out', 8],
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]
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for port, bits in required_ports:
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if port not in module_ports:
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logging.error(f"{self} port '{port}' missing from top module ('{top}')")
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exit(1)
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actual_bits = len(module_ports[port]['bits'])
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if actual_bits != bits:
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logging.error(f"{self} incorrect width for port '{port}' in module '{top}': {bits} bits required, {actual_bits} found")
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exit(1)
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def check_num_cells(self):
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num_cells = self.get_cell_count_from_synth()
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if self.is_hdl():
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if num_cells < 20:
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logging.warning(f"{self} only has {num_cells} cells")
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else:
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if num_cells < 11:
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logging.warning(f"{self} only has {num_cells} cells")
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def is_fill(self):
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return self.fill
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def is_wokwi(self):
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if self.wokwi_id != 0:
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return True
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def is_hdl(self):
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return not self.is_wokwi()
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def load_yaml(self):
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try:
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with open(os.path.join(self.local_dir, 'info.yaml')) as fh:
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self.yaml = yaml.safe_load(fh)
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except FileNotFoundError:
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logging.error(f"yaml file not found for {self} - do you need to --clone the project repos?")
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exit(1)
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# find and save the location of the source files
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# get name of top module and the verilog module that contains the top
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def setup_source_files(self):
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# wokwi_id must be an int or 0
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try:
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self.wokwi_id = int(self.yaml['project']['wokwi_id'])
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except ValueError:
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logging.error("wokwi id must be an integer")
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exit(1)
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self.yaml['project']['git_url'] = self.git_url
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if self.is_hdl():
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self.top_module = self.yaml['project']['top_module']
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self.src_files = self.get_hdl_source()
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self.top_verilog_filename = self.find_top_verilog()
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else:
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self.top_module = f"tt_um_wokwi_{self.wokwi_id}"
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self.src_files = self.get_wokwi_source()
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self.top_verilog_filename = self.src_files[0]
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if not self.top_module.startswith("tt_um_"):
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logging.error(f'top module name must start with "tt_um_" (current value: "{self.top_module}")')
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exit(1)
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self.macro_instance = f"{self.top_module}_{self.index :03}"
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def get_wokwi_source(self):
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src_file = "tt_um_wokwi_{}.v".format(self.wokwi_id)
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return [src_file, 'cells.v']
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def get_hdl_source(self):
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if 'source_files' not in self.yaml['project']:
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logging.error("source files must be provided if wokwi_id is set to 0")
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exit(1)
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source_files = self.yaml['project']['source_files']
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if source_files is None:
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logging.error("must be more than 1 source file")
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exit(1)
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if len(source_files) == 0:
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logging.error("must be more than 1 source file")
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exit(1)
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if 'top_module' not in self.yaml['project']:
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logging.error("must provide a top module name")
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exit(1)
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if self.yaml['project']['top_module'] == 'top':
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logging.error("top module cannot be called top - prepend your repo name to make it unique")
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exit(1)
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for filename in source_files:
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if '*' in filename:
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logging.error("* not allowed, please specify each file")
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exit(1)
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if not os.path.exists(os.path.join(self.local_dir, 'src', filename)):
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logging.error(f"{filename} doesn't exist in the repo")
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exit(1)
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return source_files
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def get_yaml(self):
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return self.yaml
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def get_hugo_row(self):
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return f'| {self.index} | [{self.yaml["documentation"]["title"]}]({self.index :03}) | {self.yaml["documentation"]["author"]}|\n'
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# docs stuff for index on README.md
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def get_index_row(self):
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return f'| {self.index} | {self.yaml["documentation"]["author"]} | {self.yaml["documentation"]["title"]} | {self.get_project_type_string()} | {self.git_url} |\n'
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def get_project_type_string(self):
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if self.is_wokwi():
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return f"[Wokwi]({self.get_wokwi_url()})"
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else:
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return "HDL"
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def get_project_doc_yaml(self):
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# fstring dict support is limited to one level deep, so put the git url and wokwi url in the docs key
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docs = self.yaml['documentation']
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docs['project_type'] = self.get_project_type_string()
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docs['git_url'] = self.git_url
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return docs
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def get_wokwi_url(self):
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return f'https://wokwi.com/projects/{self.wokwi_id}'
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# top module name is defined in one of the source files, which one?
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def find_top_verilog(self):
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rgx_mod = re.compile(r"(?:^|[\s])module[\s]{1,}([\w]+)")
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top_verilog = []
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for src in self.src_files:
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with open(os.path.join(self.local_dir, 'src', src)) as fh:
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for line in fh.readlines():
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for match in rgx_mod.finditer(line):
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if match.group(1) == self.top_module:
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top_verilog.append(src)
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if len(top_verilog) == 0:
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logging.error(f"Couldn't find verilog module '{self.top_module}' in any of the project's source files")
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exit(1)
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if len(top_verilog) > 1:
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logging.error(f"Top verilog module '{self.top_module}' found in multiple source files: {', '.join(top_verilog)}")
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exit(1)
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return top_verilog[0]
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def get_git_remote(self):
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return list(git.Repo(self.local_dir).remotes[0].urls)[0]
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def clone(self):
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if os.path.exists(self.local_dir):
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git_remote = self.get_git_remote()
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if self.git_url == git_remote:
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logging.info("git repo already exists and is correct - skipping")
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else:
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logging.error("git repo exists and remote doesn't match - abort")
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logging.error(f"{self.git_url} != {git_remote}")
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exit(1)
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else:
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logging.debug("clone")
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git.Repo.clone_from(self.git_url, self.local_dir, recursive=True)
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def pull(self):
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repo = git.Repo(self.local_dir)
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# reset
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repo.git.reset('--hard')
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o = repo.remotes.origin
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o.pull()
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def __str__(self):
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"""
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if self.args.log_email:
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return f"[{self.index:03} : {self.email} : {self.git_url}]"
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else:
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"""
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return f"[{self.index:03} : {self.git_url}]"
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def fetch_gds(self):
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git_utils.install_artifacts(self.git_url, self.local_dir)
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def get_latest_action_url(self):
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return git_utils.get_latest_action_url(self.git_url, self.local_dir)
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def get_macro_name(self):
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return self.top_module
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# instance name of the project, different for each id
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def get_macro_instance(self):
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return self.macro_instance
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# unique id
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def get_index(self):
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return self.index
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# metrics
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def get_metrics_path(self):
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return os.path.join(self.local_dir, 'runs/wokwi/reports/metrics.csv')
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# name of the gds file
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def get_macro_gds_filename(self):
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return f"{self.top_module}.gds"
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def get_macro_lef_filename(self):
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return f"{self.top_module}.lef"
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def get_macro_spef_filename(self):
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return f"{self.top_module}.spef"
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# for GL sims & blackboxing
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def get_gl_verilog_filename(self):
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return f"{self.top_module}.v"
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# for simulations
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def get_top_verilog_filename(self):
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if self.is_hdl():
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# make sure it's unique & without leading directories
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# a few people use 'top.v', which is OK as long as the top module is called something more unique
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# but then it needs to be made unique so the source can be found
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filename = os.path.basename(self.top_verilog_filename)
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return f'{self.index :03}_{filename}'
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else:
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return self.top_verilog_filename
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def get_git_url(self):
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return self.git_url
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def copy_files_to_caravel(self):
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files = [
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(f"runs/wokwi/results/final/gds/{self.get_macro_gds_filename()}", f"gds/{self.get_macro_gds_filename()}"),
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(f"runs/wokwi/results/final/spef/{self.get_macro_spef_filename()}", f"spef/{self.get_macro_spef_filename()}"),
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(f"runs/wokwi/results/final/lef/{self.get_macro_lef_filename()}", f"lef/{self.get_macro_lef_filename()}"),
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(f"runs/wokwi/results/final/verilog/gl/{self.get_gl_verilog_filename()}", f"verilog/gl/{self.get_gl_verilog_filename()}"),
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(f"src/{self.top_verilog_filename}", f"verilog/rtl/{self.get_top_verilog_filename()}"),
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]
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# copy RTL verilog to openlane2 mux directory:
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if os.path.isdir("tt-multiplexer/ol2/tt_top/verilog"):
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files.append((f"src/{self.top_verilog_filename}", f"tt-multiplexer/ol2/tt_top/verilog/{self.get_gl_verilog_filename()}"))
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logging.debug("copying files into position")
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for from_path, to_path in files:
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from_path = os.path.join(self.local_dir, from_path)
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logging.debug(f"copy {from_path} to {to_path}")
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shutil.copyfile(from_path, to_path)
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def print_wokwi_id(self):
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print(self.wokwi_id)
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def fetch_wokwi_files(self):
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logging.info("fetching wokwi files")
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src_file = self.src_files[0]
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url = f"https://wokwi.com/api/projects/{self.wokwi_id}/verilog"
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git_utils.fetch_file(url, os.path.join(self.local_dir, "src", src_file))
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# also fetch the wokwi diagram
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url = f"https://wokwi.com/api/projects/{self.wokwi_id}/diagram.json"
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diagram_file = "wokwi_diagram.json"
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git_utils.fetch_file(url, os.path.join(self.local_dir, "src", diagram_file))
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# attempt to download the *optional* truthtable for the project
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truthtable_file = "truthtable.md"
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url = f"https://wokwi.com/api/projects/{self.wokwi_id}/{truthtable_file}"
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try:
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git_utils.fetch_file(url, os.path.join(self.local_dir, "src", truthtable_file))
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logging.info(f'Wokwi project {self.wokwi_id} has a truthtable included, will test!')
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self.install_wokwi_testing()
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except FileNotFoundError:
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pass
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def install_wokwi_testing(self, destination_dir='src', resource_dir=None):
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if resource_dir is None or not len(resource_dir):
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resource_dir = os.path.join(os.path.dirname(__file__), 'testing')
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# directories in testing/lib to copy over
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pyLibsDir = os.path.join(resource_dir, 'lib')
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# src template dir
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srcTplDir = os.path.join(resource_dir, 'src-tpl')
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for libfullpath in glob.glob(os.path.join(pyLibsDir, '*')):
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logging.info(f'Copying {libfullpath} to {destination_dir}')
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shutil.copytree(
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libfullpath,
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os.path.join(destination_dir, os.path.basename(libfullpath)),
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dirs_exist_ok=True)
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for srcTemplate in glob.glob(os.path.join(srcTplDir, '*')):
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with open(srcTemplate, 'r') as f:
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contents = f.read()
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customizedContents = re.sub('WOKWI_ID', str(self.wokwi_id), contents)
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outputFname = os.path.basename(srcTemplate)
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with open(os.path.join(destination_dir, outputFname), 'w') as outf:
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logging.info(f'writing src tpl to {outputFname}')
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outf.write(customizedContents)
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outf.close()
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def create_user_config(self):
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if self.is_wokwi():
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self.fetch_wokwi_files()
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logging.info("creating include file")
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filename = 'user_config.tcl'
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with open(os.path.join(self.local_dir, 'src', filename), 'w') as fh:
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fh.write("set ::env(DESIGN_NAME) {}\n".format(self.top_module))
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fh.write('set ::env(VERILOG_FILES) "\\\n')
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for line, source in enumerate(self.src_files):
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fh.write(" $::env(DESIGN_DIR)/" + source)
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if line != len(self.src_files) - 1:
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fh.write(' \\\n')
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fh.write('"\n\n')
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tiles = self.yaml['project']['tiles']
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die_area = tile_sizes[tiles]
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fh.write(f'# Project area: {tiles} tiles\n')
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fh.write(f'set ::env(DIE_AREA) "{die_area}"\n')
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fh.write(f'set ::env(FP_DEF_TEMPLATE) "$::env(DESIGN_DIR)/../tt/def/tt_block_{tiles}.def"\n')
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def golden_harden(self):
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logging.info(f"hardening {self}")
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# copy golden config
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shutil.copyfile('golden_config.tcl', os.path.join(self.local_dir, 'src', 'config.tcl'))
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self.harden()
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def harden(self):
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cwd = os.getcwd()
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os.chdir(self.local_dir)
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# requires PDK, PDK_ROOT, OPENLANE_ROOT & OPENLANE_IMAGE_NAME to be set in local environment
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harden_cmd = 'docker run --rm -v $OPENLANE_ROOT:/openlane -v $PDK_ROOT:$PDK_ROOT -v $(pwd):/work -e PDK=$PDK -e PDK_ROOT=$PDK_ROOT -u $(id -u $USER):$(id -g $USER) $OPENLANE_IMAGE_NAME /bin/bash -c "./flow.tcl -overwrite -design /work/src -run_path /work/runs -tag wokwi"'
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logging.debug(harden_cmd)
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env = os.environ.copy()
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p = subprocess.run(harden_cmd, shell=True, env=env)
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if p.returncode != 0:
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logging.error("harden failed")
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exit(1)
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os.chdir(cwd)
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# doc check
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# makes sure that the basic info is present
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def check_yaml_docs(self):
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yaml = self.yaml
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logging.info("checking docs")
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for key in ['author', 'title', 'description', 'how_it_works', 'how_to_test', 'language', 'inputs', 'outputs', 'bidirectional']:
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if key not in yaml['documentation']:
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logging.error("missing key {} in documentation".format(key))
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exit(1)
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if yaml['documentation'][key] == "":
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logging.error("missing value for {} in documentation".format(key))
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exit(1)
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# use pandoc to create a single page PDF preview
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def create_pdf(self):
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yaml = self.yaml
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yaml = yaml['documentation']
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logging.info("creating pdf")
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script_dir = os.path.dirname(os.path.realpath(__file__))
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with open(os.path.join(script_dir, "docs/project_header.md")) as fh:
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doc_header = fh.read()
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with open(os.path.join(script_dir, "docs/project_preview.md")) as fh:
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doc_template = fh.read()
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with open('datasheet.md', 'w') as fh:
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fh.write(doc_header)
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# handle pictures
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yaml['picture_link'] = ''
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if yaml['picture']:
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# skip SVG for now, not supported by pandoc
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picture_name = yaml['picture']
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if 'svg' not in picture_name:
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yaml['picture_link'] = ''.format(picture_name)
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else:
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logging.warning("svg not supported")
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|
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# now build the doc & print it
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try:
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doc = doc_template.format(**yaml)
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fh.write(doc)
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fh.write("\n\pagebreak\n")
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except IndexError:
|
|
logging.warning("missing pins in info.yaml, skipping")
|
|
|
|
pdf_cmd = 'pandoc --pdf-engine=xelatex -i datasheet.md -o datasheet.pdf'
|
|
logging.info(pdf_cmd)
|
|
p = subprocess.run(pdf_cmd, shell=True)
|
|
if p.returncode != 0:
|
|
logging.error("pdf command failed")
|
|
|
|
# SVG and PNG renders of the GDS
|
|
def create_svg(self):
|
|
gds = glob.glob(os.path.join(self.local_dir, 'runs/wokwi/results/final/gds/*gds'))
|
|
library = gdstk.read_gds(gds[0])
|
|
top_cells = library.top_level()
|
|
top_cells[0].write_svg('gds_render.svg')
|
|
|
|
if self.args.create_png:
|
|
cairosvg.svg2png(url='gds_render.svg', write_to='gds_render.png')
|
|
|
|
def print_warnings(self):
|
|
warnings = []
|
|
with open(os.path.join(self.local_dir, 'runs/wokwi/logs/synthesis/1-synthesis.log')) as f:
|
|
for line in f.readlines():
|
|
if line.startswith('Warning:'):
|
|
# bogus warning https://github.com/YosysHQ/yosys/commit/bfacaddca8a2e113e4bc3d6177612ccdba1555c8
|
|
if 'WIDTHLABEL' not in line:
|
|
warnings.append(line.strip())
|
|
if len(warnings):
|
|
print('# Synthesis warnings')
|
|
print()
|
|
for warning in warnings:
|
|
print(f'* {warning}')
|
|
|
|
def print_stats(self):
|
|
print('# Routing stats')
|
|
print()
|
|
print('| Utilisation (%) | Wire length (um) |')
|
|
print('|-------------|------------------|')
|
|
print('| {} | {} |'.format(self.metrics['OpenDP_Util'], self.metrics['wire_length']))
|
|
|
|
# Print the summaries
|
|
def summarize(self):
|
|
cell_count = self.get_cell_counts_from_gl()
|
|
script_dir = os.path.dirname(os.path.realpath(__file__))
|
|
|
|
with open(os.path.join(script_dir, 'categories.json')) as fh:
|
|
categories = json.load(fh)
|
|
with open(os.path.join(script_dir, 'defs.json')) as fh:
|
|
defs = json.load(fh)
|
|
|
|
# print all used cells, sorted by frequency
|
|
total = 0
|
|
if self.args.print_cell_summary:
|
|
print('# Cell usage')
|
|
print()
|
|
print('| Cell Name | Description | Count |')
|
|
print('|-----------|-------------|-------|')
|
|
for name, count in sorted(cell_count.items(), key=lambda item: item[1], reverse=True):
|
|
if count > 0:
|
|
total += count
|
|
cell_link = f'{CELL_URL}{name}'
|
|
print(f'| [{name}]({cell_link}) | {defs[name]["description"]} |{count} |')
|
|
|
|
print(f'| | Total | {total} |')
|
|
|
|
if self.args.print_cell_category:
|
|
by_category = {}
|
|
total = 0
|
|
for cell_name in cell_count:
|
|
cat_index = categories['map'][cell_name]
|
|
cat_name = categories['categories'][cat_index]
|
|
if cat_name in by_category:
|
|
by_category[cat_name]['count'] += cell_count[cell_name]
|
|
by_category[cat_name]['examples'].append(cell_name)
|
|
else:
|
|
by_category[cat_name] = {'count' : cell_count[cell_name], 'examples' : [cell_name]}
|
|
|
|
if cat_name not in ['Fill', 'Tap']:
|
|
total += cell_count[cell_name]
|
|
|
|
print('# Cell usage by Category')
|
|
print()
|
|
print('| Category | Cells | Count |')
|
|
print('|---------------|----------|-------|')
|
|
for cat_name, cat_dict in sorted(by_category.items(), key=lambda x: x[1]['count'], reverse=True):
|
|
cell_links = [f'[{name}]({CELL_URL}{name})' for name in cat_dict['examples']]
|
|
print(f'|{cat_name} | {" ".join(cell_links)} | {cat_dict["count"]}|')
|
|
|
|
print(f'## {total} total cells (excluding fill and tap cells)')
|
|
|
|
# get cell count from synth report
|
|
def get_cell_count_from_synth(self):
|
|
num_cells = 0
|
|
try:
|
|
yosys_report = glob.glob(f'{self.local_dir}/runs/wokwi/reports/synthesis/1-synthesis.*0.stat.rpt')[0] # can't open a file with \ in the path
|
|
with open(yosys_report) as fh:
|
|
for line in fh.readlines():
|
|
m = re.search(r'Number of cells:\s+(\d+)', line)
|
|
if m is not None:
|
|
num_cells = int(m.group(1))
|
|
|
|
except IndexError:
|
|
logging.warning(f"couldn't open yosys cell report for cell checking {self}")
|
|
|
|
return num_cells
|
|
|
|
# Parse the lib, cell and drive strength an OpenLane gate-level Verilog file
|
|
def get_cell_counts_from_gl(self):
|
|
cell_count = {}
|
|
total = 0
|
|
gl_files = glob.glob(os.path.join(self.local_dir, 'runs/wokwi/results/final/verilog/gl/*.nl.v'))
|
|
with open(gl_files[0]) as fh:
|
|
for line in fh.readlines():
|
|
m = re.search(r'sky130_(\S+)__(\S+)_(\d+)', line)
|
|
if m is not None:
|
|
total += 1
|
|
cell_lib = m.group(1)
|
|
cell_name = m.group(2)
|
|
cell_drive = m.group(3)
|
|
assert cell_lib in ['fd_sc_hd', 'ef_sc_hd']
|
|
assert int(cell_drive) > 0
|
|
try:
|
|
cell_count[cell_name] += 1
|
|
except KeyError:
|
|
cell_count[cell_name] = 1
|
|
return (cell_count)
|
|
|
|
# Load all the json defs and combine into one big dict, keyed by cellname
|
|
# Needs access to the PDK
|
|
def create_defs(self):
|
|
# replace this with a find
|
|
json_files = glob.glob('sky130_fd_sc_hd/latest/cells/*/definition.json')
|
|
definitions = {}
|
|
for json_file in json_files:
|
|
with open(json_file) as fh:
|
|
definition = json.load(fh)
|
|
definitions[definition['name']] = definition
|
|
|
|
with open('defs.json', 'w') as fh:
|
|
json.dump(definitions, fh)
|