53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
/*
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* nextpnr -- Next Generation Place and Route
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*
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* Copyright (C) 2018 gatecat <gatecat@ds0.me>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#ifndef PLACE_COMMON_H
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#define PLACE_COMMON_H
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#include "nextpnr.h"
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NEXTPNR_NAMESPACE_BEGIN
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typedef int64_t wirelen_t;
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enum class MetricType
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{
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COST,
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WIRELENGTH
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};
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// Return the wirelength of a net
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wirelen_t get_net_metric(const Context *ctx, const NetInfo *net, MetricType type, float &tns);
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// Return the wirelength of all nets connected to a cell
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wirelen_t get_cell_metric(const Context *ctx, const CellInfo *cell, MetricType type);
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// Return the wirelength of all nets connected to a cell, when the cell is at a given bel
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wirelen_t get_cell_metric_at_bel(const Context *ctx, CellInfo *cell, BelId bel, MetricType type);
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// Modify a design s.t. all relative placement constraints are satisfied
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bool legalise_relative_constraints(Context *ctx);
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// Get the total distance from satisfied constraints for a cell
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int get_constraints_distance(const Context *ctx, const CellInfo *cell);
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NEXTPNR_NAMESPACE_END
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#endif
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