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> # Sanity check on max capacity to track, adjust if needed.
> max_capacity = Param.MemorySize('8MB', "Maximum capacity of snoop filter")
>
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> # Use a snoop-filter by default, and set the latency to zero as
> # the lookup is assumed to overlap with the frontend latency of
> # the crossbar
> snoop_filter = SnoopFilter(lookup_latency = 0)
>