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86 lines
2.6 KiB
Python
86 lines
2.6 KiB
Python
#!/usr/bin/python3
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# Symbiflow Stage Module
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# ----------------------------------------------------------------------------- #
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import os
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from sf_common import *
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from sf_module import *
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# ----------------------------------------------------------------------------- #
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def default_output_name(place_constraints):
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p = place_constraints
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m = re.match('(.*)\\.[^.]*$', place_constraints)
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if m:
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p = m.groups()[0] + '.place'
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else:
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p += '.place'
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return p
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def place_constraints_file(ctx: ModuleContext):
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dummy =- False
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p = ctx.takes.place_constraints
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if not p:
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p = ctx.takes.io_place
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if not p:
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dummy = True
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p = file_noext(ctx.takes.eblif) + '.place'
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return p, dummy
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class PlaceModule(Module):
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def map_io(self, ctx: ModuleContext):
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mapping = {}
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p, _ = place_constraints_file(ctx)
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mapping['place'] = default_output_name(p)
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return mapping
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def execute(self, ctx: ModuleContext):
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place_constraints, dummy = place_constraints_file(ctx)
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place_constraints = os.path.realpath(place_constraints)
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if dummy:
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with open(place_constraints, 'wb') as f:
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f.write(b'')
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build_dir = os.path.dirname(ctx.takes.eblif)
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vpr_options = ['--fix_clusters', place_constraints]
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yield 'Running VPR...'
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vprargs = VprArgs(ctx.share, ctx.takes.eblif, ctx.values,
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sdc_file=ctx.takes.sdc, vpr_extra_opts=vpr_options)
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vpr('place', vprargs, cwd=build_dir)
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# VPR names output on its own. If user requested another name, the
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# output file should be moved.
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# TODO: This extends the set of names that would cause collisions.
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# As for now (22-07-2021), no collision detection is being done, but
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# when the problem gets tackled, we should keep in mind that VPR-based
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# modules may produce some temporary files with names that differ from
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# the ones in flow configuration.
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if ctx.is_output_explicit('place'):
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output_file = default_output_name(place_constraints)
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shutil.move(output_file, ctx.outputs.place)
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yield 'Saving log...'
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save_vpr_log('place.log', build_dir=build_dir)
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def __init__(self, _):
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self.name = 'place'
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self.no_of_phases = 2
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self.takes = [
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'eblif',
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'sdc?',
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'place_constraints?',
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'io_place?'
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]
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self.produces = [ 'place' ]
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self.values = [
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'device',
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'vpr_options?'
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] + vpr_specific_values()
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ModuleClass = PlaceModule
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