mirror of
https://github.com/TinyTapeout/tt-support-tools.git
synced 2026-11-03 12:46:08 +01:00
869 lines
32 KiB
Python
869 lines
32 KiB
Python
import copy
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import csv
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import glob
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import json
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import logging
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import os
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import re
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import shutil
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import subprocess
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import typing
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import cairosvg # type: ignore
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import chevron
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import gdstk # type: ignore
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import yaml
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from git.repo import Repo
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import git_utils
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from cells import Cell, load_cells
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from markdown_utils import limit_markdown_headings
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from project_info import ProjectInfo, ProjectYamlError
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CELL_URL = "https://skywater-pdk.readthedocs.io/en/main/contents/libraries/sky130_fd_sc_hd/cells/"
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PINOUT_KEYS = [
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"ui[0]",
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"ui[1]",
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"ui[2]",
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"ui[3]",
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"ui[4]",
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"ui[5]",
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"ui[6]",
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"ui[7]",
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"uo[0]",
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"uo[1]",
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"uo[2]",
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"uo[3]",
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"uo[4]",
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"uo[5]",
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"uo[6]",
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"uo[7]",
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"uio[0]",
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"uio[1]",
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"uio[2]",
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"uio[3]",
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"uio[4]",
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"uio[5]",
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"uio[6]",
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"uio[7]",
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]
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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 Args:
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openlane2: bool
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print_cell_summary: bool
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print_cell_category: bool
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class Project:
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top_verilog_filename: str
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mux_address: int
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analog_pins: tuple[int, ...]
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commit_id: str
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sort_id: int
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def __init__(
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self,
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index: int,
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git_url: str,
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local_dir: str,
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args: Args,
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is_user_project: bool,
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):
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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.local_dir = local_dir
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self.is_user_project = is_user_project
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self.src_dir = (
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os.path.join(self.local_dir, "src")
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if self.is_user_project
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else self.local_dir
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)
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yaml_path = os.path.join(self.local_dir, "info.yaml")
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try:
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with open(yaml_path) as fh:
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self.info = ProjectInfo(yaml.safe_load(fh))
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except FileNotFoundError:
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logging.error(
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f"yaml file not found for {self} - do you need to --clone the project repos?"
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)
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exit(1)
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except ProjectYamlError as e:
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logging.error(f"Error loading {yaml_path}: {e}")
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exit(1)
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self.unprefixed_name = re.sub("^tt_um_", "", self.info.top_module)
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if self.is_user_project:
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self.sources = self.info.source_files
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if self.is_wokwi():
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self.top_verilog_filename = self.sources[0]
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else:
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self.check_sources()
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self.top_verilog_filename = self.find_top_verilog()
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else:
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self.sources = [self.get_gl_verilog_filename()]
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def post_clone_setup(self):
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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 is_chip_rom(self):
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return self.get_macro_name() == "tt_um_chip_rom"
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def is_wokwi(self) -> bool:
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return hasattr(self.info, "wokwi_id")
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def is_hdl(self):
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return not self.is_wokwi()
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def check_sources(self):
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for filename in self.sources:
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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.src_dir, 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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def run_yosys(self, command: str, no_output: bool = False):
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env = os.environ.copy()
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env["YOSYS_CMD"] = command
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yosys_cmd = 'yowasp-yosys -qp "$YOSYS_CMD"'
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return subprocess.run(yosys_cmd, shell=True, env=env, capture_output=no_output)
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def check_ports(self, include_power_ports: bool = False):
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top = self.get_macro_name()
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if not self.is_user_project and self.is_chip_rom():
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return # Chip ROM is auto generated, so we don't have the verilog yet
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sources = [os.path.join(self.src_dir, src) for src in self.sources]
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source_list = " ".join(sources)
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json_file = "ports.json"
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# Heuristic - try reading just the first source file, if that fails, try all of them
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p = self.run_yosys(
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f"read_verilog -lib -sv {sources[0]}; hierarchy -top {top} ; proc; write_json {json_file}",
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True,
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)
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if p.returncode != 0:
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p = self.run_yosys(
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f"read_verilog -lib -sv {source_list}; hierarchy -top {top} ; proc; write_json {json_file}"
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)
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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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["input", "clk", 1],
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["input", "ena", 1],
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["input", "rst_n", 1],
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["input", "ui_in", 8],
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["input", "uio_in", 8],
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["output", "uio_oe", 8],
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["output", "uio_out", 8],
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["output", "uo_out", 8],
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]
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if self.is_analog_design():
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required_ports += [
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["inout", "ua", 8],
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]
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if include_power_ports:
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required_ports += [
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["input", "VGND", 1],
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["input", "VPWR", 1],
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]
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for direction, 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_direction = module_ports[port]["direction"]
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if actual_direction != direction:
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logging.error(
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f"{self} incorrect direction for port '{port}' in module '{top}': {direction} required, {actual_direction} found"
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)
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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(
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f"{self} incorrect width for port '{port}' in module '{top}': {bits} bits required, {actual_bits} found"
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)
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exit(1)
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del module_ports[port]
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if len(module_ports):
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logging.error(
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f"{self} module '{top}' has unsupported extra ports: {', '.join(module_ports.keys())}"
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)
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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 get_hugo_row(self) -> str:
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return f"| {self.mux_address} | [{self.info.title}]({self.mux_address :03}) | {self.info.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.mux_address} | {self.info.author} | {self.info.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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elif self.is_analog_design():
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return "Analog"
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else:
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return "HDL"
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def get_project_docs_dict(self):
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docs = self.info.__dict__.copy()
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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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with open(os.path.join(self.local_dir, "docs/info.md")) as fh:
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docs["user_docs"] = limit_markdown_headings(fh.read(), min_level=3)
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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.info.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: typing.List[str] = []
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top_module = self.info.top_module
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for src in self.info.source_files:
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with open(os.path.join(self.src_dir, 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) == 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(
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f"Couldn't find verilog module '{top_module}' in any of the project's source files"
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)
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exit(1)
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if len(top_verilog) > 1:
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logging.error(
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f"Top verilog module '{top_module}' found in multiple source files: {', '.join(top_verilog)}"
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)
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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(Repo(self.local_dir).remotes[0].urls)[0]
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def get_git_commit_hash(self):
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return Repo(self.local_dir).commit().hexsha
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def get_tt_tools_version(self):
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repo = Repo(os.path.join(self.local_dir, "tt"))
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return f"{repo.active_branch.name} {repo.commit().hexsha[:8]}"
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def read_commit_info_json(self) -> typing.Dict[str, typing.Any]:
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json_file = os.path.join(self.local_dir, "commit_id.json")
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with open(json_file) as fh:
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return json.load(fh)
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def get_workflow_url_when_submitted(self) -> str:
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commit_info = self.read_commit_info_json()
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return commit_info["workflow_url"]
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def is_analog_design(self) -> bool:
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return len(self.info.pinout.ua) > 0
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def get_workflow_url(self):
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GITHUB_SERVER_URL = os.getenv("GITHUB_SERVER_URL")
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GITHUB_REPOSITORY = os.getenv("GITHUB_REPOSITORY")
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GITHUB_RUN_ID = os.getenv("GITHUB_RUN_ID")
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if GITHUB_SERVER_URL and GITHUB_REPOSITORY and GITHUB_RUN_ID:
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return (
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f"{GITHUB_SERVER_URL}/{GITHUB_REPOSITORY}/actions/runs/{GITHUB_RUN_ID}"
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)
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def __str__(self):
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return f"[{self.index:03} : {self.git_url}]"
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def get_latest_action_url(self):
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return git_utils.get_latest_action_url(self.git_url)
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def get_macro_name(self):
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return self.info.top_module
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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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if self.is_user_project:
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if self.args.openlane2:
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return os.path.join(self.local_dir, "runs/wokwi/final/metrics.csv")
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else:
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return os.path.join(self.local_dir, "runs/wokwi/reports/metrics.csv")
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else:
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return os.path.join(self.local_dir, "stats/metrics.csv")
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def get_gl_path(self):
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if self.is_user_project:
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if self.args.openlane2:
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return glob.glob(
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os.path.join(self.local_dir, "runs/wokwi/final/nl/*.nl.v")
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)[0]
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else:
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return glob.glob(
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os.path.join(
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self.local_dir, "runs/wokwi/results/final/verilog/gl/*.nl.v"
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)
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)[0]
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else:
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return os.path.join(self.local_dir, f"{self.info.top_module}.v")
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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.info.top_module}.gds"
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def get_macro_info_filename(self):
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return f"{self.info.top_module}.info.json"
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def get_macro_lef_filename(self):
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return f"{self.info.top_module}.lef"
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def get_macro_spef_filename(self):
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return f"{self.info.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.info.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 print_wokwi_id(self):
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print(self.info.wokwi_id)
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def print_top_module(self):
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print(self.info.top_module)
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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.info.source_files[0]
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url = f"https://wokwi.com/api/projects/{self.info.wokwi_id}/verilog"
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git_utils.fetch_file(url, os.path.join(self.src_dir, src_file))
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# also fetch the wokwi diagram
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url = f"https://wokwi.com/api/projects/{self.info.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.src_dir, 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.info.wokwi_id}/{truthtable_file}"
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try:
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git_utils.fetch_file(url, os.path.join(self.src_dir, truthtable_file))
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logging.info(
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f"Wokwi project {self.info.wokwi_id} has a truthtable included, will test!"
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)
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self.install_wokwi_testing()
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except FileNotFoundError:
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pass
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|
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def install_wokwi_testing(
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self, destination_dir: str = "src", resource_dir: typing.Optional[str] = None
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):
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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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|
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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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|
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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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)
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|
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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(
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"WOKWI_ID", str(self.info.wokwi_id), contents
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)
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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)
|
|
outf.close()
|
|
|
|
def create_user_config(self):
|
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if self.is_wokwi():
|
|
self.fetch_wokwi_files()
|
|
self.check_ports()
|
|
logging.info("creating include file")
|
|
filename = "user_config.tcl"
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|
with open(os.path.join(self.src_dir, filename), "w") as fh:
|
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fh.write("set ::env(DESIGN_NAME) {}\n".format(self.info.top_module))
|
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fh.write('set ::env(VERILOG_FILES) "\\\n')
|
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for line, source in enumerate(self.sources):
|
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fh.write(" $::env(DESIGN_DIR)/" + source)
|
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if line != len(self.sources) - 1:
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fh.write(" \\\n")
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fh.write('"\n\n')
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tiles = self.info.tiles
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die_area = tile_sizes[tiles]
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fh.write(f"# Project area: {tiles} tiles\n")
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fh.write(f'set ::env(DIE_AREA) "{die_area}"\n')
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fh.write(
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f'set ::env(FP_DEF_TEMPLATE) "$::env(DESIGN_DIR)/../tt/def/tt_block_{tiles}_pg.def"\n'
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)
|
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|
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def golden_harden(self):
|
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logging.info(f"hardening {self}")
|
|
shutil.copyfile("golden_config.tcl", os.path.join(self.src_dir, "config.tcl"))
|
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self.harden()
|
|
|
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def harden(self):
|
|
cwd = os.getcwd()
|
|
os.chdir(self.local_dir)
|
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|
|
repo = self.get_git_remote()
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|
commit_hash = self.get_git_commit_hash()
|
|
tt_version = self.get_tt_tools_version()
|
|
workflow_url = self.get_workflow_url()
|
|
|
|
if self.args.openlane2:
|
|
if not os.path.exists("runs/wokwi"):
|
|
print(
|
|
"OpenLane 2 harden not supported yet, please run OpenLane 2 manually"
|
|
)
|
|
exit(1)
|
|
print(
|
|
"Writing commit information on top of the existing OpenLane 2 run (runs/wokwi)"
|
|
)
|
|
else:
|
|
# requires PDK, PDK_ROOT, OPENLANE_ROOT & OPENLANE_IMAGE_NAME to be set in local environment
|
|
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"'
|
|
logging.debug(harden_cmd)
|
|
env = os.environ.copy()
|
|
p = subprocess.run(harden_cmd, shell=True, env=env)
|
|
if p.returncode != 0:
|
|
logging.error("harden failed")
|
|
exit(1)
|
|
|
|
# Write commit information
|
|
commit_id_json_path = "runs/wokwi/results/final/commit_id.json"
|
|
if self.args.openlane2:
|
|
commit_id_json_path = "runs/wokwi/final/commit_id.json"
|
|
with open(os.path.join(self.local_dir, commit_id_json_path), "w") as f:
|
|
json.dump(
|
|
{
|
|
"app": f"Tiny Tapeout {tt_version}",
|
|
"repo": repo,
|
|
"commit": commit_hash,
|
|
"workflow_url": workflow_url,
|
|
},
|
|
f,
|
|
indent=2,
|
|
)
|
|
f.write("\n")
|
|
|
|
os.chdir(cwd)
|
|
|
|
# doc check
|
|
# makes sure that the basic info is present
|
|
def check_docs(self):
|
|
info_md = os.path.join(self.local_dir, "docs/info.md")
|
|
if not os.path.exists(info_md):
|
|
logging.error("Missing docs/info.md file")
|
|
exit(1)
|
|
|
|
with open(info_md) as fh:
|
|
info_md_content = fh.read()
|
|
|
|
if "# How it works\n\nExplain how your project works" in info_md_content:
|
|
logging.error("Missing 'How it works' section in docs/info.md")
|
|
exit(1)
|
|
|
|
if "# How to test\n\nExplain how to use your project" in info_md_content:
|
|
logging.error("Missing 'How to use' section in docs/info.md")
|
|
exit(1)
|
|
|
|
# use pandoc to create a single page PDF preview
|
|
def create_pdf(self):
|
|
template_args = copy.deepcopy(self.info.__dict__)
|
|
template_args.update(
|
|
{
|
|
"pins": [
|
|
{
|
|
"pin_index": str(i),
|
|
"ui": self.info.pinout.ui[i],
|
|
"uo": self.info.pinout.uo[i],
|
|
"uio": self.info.pinout.uio[i],
|
|
}
|
|
for i in range(8)
|
|
],
|
|
}
|
|
)
|
|
|
|
logging.info("Creating PDF")
|
|
script_dir = os.path.dirname(os.path.realpath(__file__))
|
|
with open(os.path.join(script_dir, "docs/project_header.md")) as fh:
|
|
doc_header = fh.read()
|
|
with open(os.path.join(script_dir, "docs/project_preview.md.mustache")) as fh:
|
|
doc_template = fh.read()
|
|
info_md = os.path.join(self.local_dir, "docs/info.md")
|
|
with open(info_md) as fh:
|
|
template_args["info"] = fh.read()
|
|
|
|
with open("datasheet.md", "w") as fh:
|
|
fh.write(doc_header)
|
|
|
|
# now build the doc & print it
|
|
try:
|
|
doc = chevron.render(doc_template, template_args)
|
|
fh.write(doc)
|
|
fh.write("\n\\pagebreak\n")
|
|
except IndexError:
|
|
logging.warning("missing pins in info.yaml, skipping")
|
|
|
|
pdf_cmd = "pandoc --pdf-engine=xelatex --resource-path=docs -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")
|
|
|
|
# Read and return top-level GDS data from the final GDS file, using gdstk:
|
|
def get_final_gds_top_cells(self):
|
|
if "GDS_PATH" in os.environ:
|
|
gds_path = os.environ["GDS_PATH"]
|
|
elif self.args.openlane2:
|
|
gds_path = glob.glob(
|
|
os.path.join(self.local_dir, "runs/wokwi/final/gds/*.gds")
|
|
)[0]
|
|
else:
|
|
gds_path = glob.glob(
|
|
os.path.join(self.local_dir, "runs/wokwi/results/final/gds/*.gds")
|
|
)[0]
|
|
library = gdstk.read_gds(gds_path)
|
|
top_cells = library.top_level()
|
|
return top_cells[0]
|
|
|
|
# SVG render of the GDS.
|
|
# NOTE: This includes all standard GDS layers inc. text labels.
|
|
def create_svg(self):
|
|
top_cells = self.get_final_gds_top_cells()
|
|
top_cells.write_svg("gds_render.svg")
|
|
|
|
# Try various QUICK methods to create a more-compressed PNG render of the GDS,
|
|
# and fall back to cairosvg if it doesn't work. This is designed for speed,
|
|
# and in particular for use by the GitHub Actions.
|
|
# For more info, see:
|
|
# https://github.com/TinyTapeout/tt-gds-action/issues/8
|
|
def create_png(self):
|
|
logging.info("Loading GDS data...")
|
|
top_cells = self.get_final_gds_top_cells()
|
|
|
|
# Remove label layers (i.e. delete text), then generate SVG:
|
|
sky130_label_layers = [
|
|
(64, 59), # 64/59 - pwell.label
|
|
(64, 5), # 64/5 - nwell.label
|
|
(67, 5), # 67/5 - li1.label
|
|
(68, 5), # 68/5 - met1.label
|
|
(69, 5), # 69/5 - met2.label
|
|
(70, 5), # 70/5 - met3.label
|
|
(71, 5), # 71/5 - met4.label
|
|
]
|
|
top_cells.filter(sky130_label_layers)
|
|
for subcell in top_cells.dependencies(True):
|
|
subcell.filter(sky130_label_layers)
|
|
svg = "gds_render_preview.svg"
|
|
logging.info("Rendering SVG without text label layers: {}".format(svg))
|
|
top_cells.write_svg(svg, pad=0)
|
|
# We should now have gds_render_preview.svg
|
|
|
|
# Try converting using 'rsvg-convert' command-line utility.
|
|
# This should create gds_render_preview.png
|
|
png = "gds_render_preview.png"
|
|
logging.info("Converting to PNG using rsvg-convert: {}".format(png))
|
|
|
|
cmd = "rsvg-convert --unlimited {} -o {} --no-keep-image-data".format(svg, png)
|
|
logging.debug(cmd)
|
|
p = subprocess.run(cmd, shell=True, capture_output=True)
|
|
|
|
if p.returncode == 127:
|
|
logging.warning(
|
|
'rsvg-convert not found; is package "librsvg2-bin" installed? Falling back to cairosvg. This might take a while...'
|
|
)
|
|
# Fall back to cairosvg:
|
|
cairosvg.svg2png(url=svg, write_to=png)
|
|
|
|
elif p.returncode != 0 and b"cannot load more than" in p.stderr:
|
|
logging.warning(
|
|
'Too many SVG elements ("{}"). Reducing complexity...'.format(
|
|
p.stderr.decode().strip()
|
|
)
|
|
)
|
|
# Remove more layers that are hardly visible anyway:
|
|
sky130_buried_layers = [
|
|
(64, 16), # 64/16 - nwell.pin
|
|
(65, 44), # 65/44 - tap.drawing
|
|
(68, 16), # 68/16 - met1.pin
|
|
(68, 44), # 68/44 - via.drawing
|
|
(81, 4), # 81/4 - areaid.standardc
|
|
(70, 20), # 70/20 - met3.drawing
|
|
# Important:
|
|
# (68,20), # 68/20 - met1.drawing
|
|
# Less important, but keep for now:
|
|
# (69,20), # 69/20 - met2.drawing
|
|
]
|
|
top_cells.filter(sky130_buried_layers)
|
|
for subcell in top_cells.dependencies(True):
|
|
subcell.filter(sky130_buried_layers)
|
|
svg_alt = "gds_render_preview_alt.svg"
|
|
logging.info("Rendering SVG with more layers removed: {}".format(svg_alt))
|
|
top_cells.write_svg(svg_alt, pad=0)
|
|
logging.info("Converting to PNG using rsvg-convert: {}".format(png))
|
|
|
|
cmd = "rsvg-convert --unlimited {} -o {} --no-keep-image-data".format(
|
|
svg_alt, png
|
|
)
|
|
logging.debug(cmd)
|
|
p = subprocess.run(cmd, shell=True, capture_output=True)
|
|
|
|
if p.returncode != 0:
|
|
logging.warning(
|
|
'Still cannot convert to SVG ("{}"). Falling back to cairosvg. This might take a while...'.format(
|
|
p.stderr.decode().strip()
|
|
)
|
|
)
|
|
# Fall back to cairosvg, and since we're doing that, might as well use the original full-detail SVG anyway:
|
|
cairosvg.svg2png(url=svg, write_to=png)
|
|
|
|
# By now we should have gds_render_preview.png
|
|
|
|
# Compress with pngquant:
|
|
final_png = "gds_render.png"
|
|
if self.info.tiles == "8x2":
|
|
quality = "0-10" # Compress more for 8x2 tiles.
|
|
else:
|
|
quality = "0-30"
|
|
logging.info("Compressing PNG further with pngquant to: {}".format(final_png))
|
|
|
|
cmd = "pngquant --quality {} --speed 1 --nofs --strip --force --output {} {}".format(
|
|
quality, final_png, png
|
|
)
|
|
logging.debug(cmd)
|
|
p = subprocess.run(cmd, shell=True, capture_output=True)
|
|
|
|
if p.returncode == 127:
|
|
logging.warning(
|
|
'pngquant not found; is package "pngquant" installed? Using intermediate (uncompressed) PNG file'
|
|
)
|
|
os.rename(png, final_png)
|
|
elif p.returncode != 0:
|
|
logging.warning(
|
|
'pngquant error {} ("{}"). Using intermediate (uncompressed) PNG file'.format(
|
|
p.returncode, p.stderr.decode().strip()
|
|
)
|
|
)
|
|
os.rename(png, final_png)
|
|
logging.info(
|
|
"Final PNG is {} ({:,} bytes)".format(final_png, os.path.getsize(final_png))
|
|
)
|
|
|
|
def print_warnings(self):
|
|
warnings: typing.List[str] = []
|
|
|
|
synth_log = "runs/wokwi/logs/synthesis/1-synthesis.log"
|
|
if self.args.openlane2:
|
|
synth_log = "runs/wokwi/05-yosys-synthesis/yosys-synthesis.log"
|
|
with open(os.path.join(self.local_dir, synth_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())
|
|
|
|
sta_report_glob = (
|
|
"runs/wokwi/reports/signoff/*-sta-rcx_nom/multi_corner_sta.checks.rpt"
|
|
)
|
|
|
|
if self.args.openlane2:
|
|
sta_report_glob = (
|
|
"runs/wokwi/*-openroad-stapostpnr/nom_tt_025C_1v80/checks.rpt"
|
|
)
|
|
sta_report = glob.glob(os.path.join(self.local_dir, sta_report_glob))[0]
|
|
with open(os.path.join(self.local_dir, sta_report)) as f:
|
|
for line in f.readlines():
|
|
if line.startswith("Warning:") and "clock" 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__))
|
|
|
|
Categories = typing.TypedDict(
|
|
"Categories", {"categories": typing.List[str], "map": typing.Dict[str, int]}
|
|
)
|
|
with open(os.path.join(script_dir, "categories.json")) as fh:
|
|
categories: Categories = json.load(fh)
|
|
|
|
defs = load_cells()
|
|
|
|
# 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:
|
|
CategoryInfo = typing.TypedDict(
|
|
"CategoryInfo", {"count": int, "examples": typing.List[str]}
|
|
)
|
|
by_category: typing.Dict[str, CategoryInfo] = {}
|
|
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 = f"{self.local_dir}/stats/synthesis-stats.txt"
|
|
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, FileNotFoundError):
|
|
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: typing.Dict[str, int] = {}
|
|
total = 0
|
|
with open(self.get_gl_path()) 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)
|
|
assert cell_lib in ["fd_sc_hd", "ef_sc_hd"]
|
|
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: typing.Dict[str, Cell] = {}
|
|
for json_file in json_files:
|
|
with open(json_file) as fh:
|
|
definition: Cell = json.load(fh)
|
|
definitions[definition["name"]] = definition
|
|
|
|
with open("cells.json", "w") as fh:
|
|
json.dump(definitions, fh)
|