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74 lines
2.4 KiB
Python
74 lines
2.4 KiB
Python
from abc import ABCMeta, abstractmethod
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from pathlib import Path
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from power_fv.build import sby
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__all__ = ["PowerFVCheck"]
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class PowerFVCheckMeta(ABCMeta):
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all_checks = {}
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def __new__(metacls, clsname, bases, namespace, name=None, **kwargs):
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if name is not None:
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if name in metacls.all_checks:
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raise NameError("Check {!r} already exists".format(name))
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namespace["name"] = name
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cls = ABCMeta.__new__(metacls, clsname, bases, namespace, **kwargs)
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if name is not None:
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metacls.all_checks[name] = cls
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cls.name = name
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return cls
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@classmethod
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def find(cls, *name):
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for check_name, check_cls in cls.all_checks.items():
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assert isinstance(check_name, tuple)
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if len(name) > len(check_name):
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continue
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if name == check_name[:len(name)]:
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yield check_name, check_cls
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class PowerFVCheck(metaclass=PowerFVCheckMeta):
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@classmethod
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def add_check_arguments(cls, parser):
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parser.add_argument(
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"name", metavar="NAME", type=str, help="name of the check")
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parser.add_argument(
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"--depth", type=int, default=15,
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help="depth of the BMC, in clock cycles (default: %(default)s)")
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parser.add_argument(
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"--skip", type=int, default=None,
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help="skip the specified number of clock cycles (default: DEPTH-1))")
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@classmethod
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def add_build_arguments(cls, parser):
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parser.add_argument(
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"--build-dir", type=Path, default=Path("./build"),
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help="output directory (default: %(default)s)")
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def __init__(self, *, depth, skip, core, **kwargs):
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self.depth = depth
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self.skip = skip if skip is not None else depth - 1
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self.core = core
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self.dut = core.wrapper(**kwargs)
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@abstractmethod
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def testbench(self):
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raise NotImplementedError
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def build(self, *, build_dir, **kwargs):
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platform = sby.SymbiYosysPlatform()
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self.core.add_files(platform, self.dut, **kwargs)
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top = self.testbench()
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build_dir = build_dir / top.name
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overrides = {key: str(value) for key, value in kwargs.items()}
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overrides["depth"] = str(self.depth)
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overrides["skip"] = str(self.skip)
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return platform.build(top, name=top.name, build_dir=build_dir, **overrides)
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