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build: only resynthesise when input RTLIL changes.

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Ouch.
This commit is contained in:
Asherah Connor 2024-06-27 19:26:33 +03:00
parent 7aa12417e6
commit b4eef36627
1 changed files with 27 additions and 6 deletions
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31
niar/build.py
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@ -5,7 +5,9 @@ from functools import partial
from typing import Optional from typing import Optional
from amaranth.build import Platform from amaranth.build import Platform
from amaranth.build.run import LocalBuildProducts
from .cmdrunner import CommandRunner
from .logging import logger, logtime from .logging import logger, logtime
from .project import Project from .project import Project
@ -38,6 +40,12 @@ def add_arguments(np: Project, parser):
action="store_true", action="store_true",
help="output debug Verilog", help="output debug Verilog",
) )
parser.add_argument(
"-f",
"--force",
action="store_true",
help="don't use cached synthesis",
)
def main(np: Project, args): def main(np: Project, args):
@ -46,33 +54,46 @@ def main(np: Project, args):
platform = np.target_by_name(args.board) platform = np.target_by_name(args.board)
design = construct_top(np, platform) design = construct_top(np, platform)
name = f"{np.name}-{type(platform).__name__}"
with logtime(logging.DEBUG, "elaboration"): with logtime(logging.DEBUG, "elaboration"):
plan = platform.prepare( plan = platform.prepare(
design, design,
np.name, name,
debug_verilog=args.verilog, debug_verilog=args.verilog,
yosys_opts="-g", yosys_opts="-g",
) )
fn = f"{np.name}.il" fn = f"{name}.il"
size = len(plan.files[fn]) size = len(plan.files[fn])
logger.debug(f"{fn!r}: {size:,} bytes") logger.debug(f"{fn!r}: {size:,} bytes")
with logtime(logging.DEBUG, "synthesis/pnr"): with logtime(logging.DEBUG, "synthesis/pnr"):
cr = CommandRunner(force=args.force)
products = None
def execute_build():
nonlocal products
products = plan.execute_local("build") products = plan.execute_local("build")
cr.add_process(execute_build,
infs=[np.path.build(fn)],
outf=np.path.build(name))
cr.run()
if products is None:
# XXX: good lord.
products = LocalBuildProducts(np.path.build())
if args.program: if args.program:
with logtime(logging.DEBUG, "programming"): with logtime(logging.DEBUG, "programming"):
platform.toolchain_program(products, np.name) platform.toolchain_program(products, name)
heading = re.compile(r"^\d+\.\d+\. Printing statistics\.$", flags=re.MULTILINE) heading = re.compile(r"^\d+\.\d+\. Printing statistics\.$", flags=re.MULTILINE)
next_heading = re.compile(r"^\d+\.\d+\. ", flags=re.MULTILINE) next_heading = re.compile(r"^\d+\.\d+\. ", flags=re.MULTILINE)
log_file_between(logging.INFO, f"build/{np.name}.rpt", heading, next_heading) log_file_between(logging.INFO, f"build/{name}.rpt", heading, next_heading)
logger.info("Device utilisation:") logger.info("Device utilisation:")
heading = re.compile(r"^Info: Device utilisation:$", flags=re.MULTILINE) heading = re.compile(r"^Info: Device utilisation:$", flags=re.MULTILINE)
next_heading = re.compile(r"^Info: Placed ", flags=re.MULTILINE) next_heading = re.compile(r"^Info: Placed ", flags=re.MULTILINE)
log_file_between( log_file_between(
logging.INFO, f"build/{np.name}.tim", heading, next_heading, prefix="Info: " logging.INFO, f"build/{name}.tim", heading, next_heading, prefix="Info: "
) )