a30043c8da
Fixes: - Only use map constant pins during routing, and not during placement. - Unmapped cell ports have no BEL pins. - Fix SiteRouter congestion not taking into account initial expansion. - Fix psuedo-site pip output. Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
/*
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* nextpnr -- Next Generation Place and Route
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*
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* Copyright (C) 2021 Symbiflow Authors
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*
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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 NEXTPNR_H
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#error Include "site_router.h" via "nextpnr.h" only.
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#endif
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NEXTPNR_NAMESPACE_BEGIN
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struct Context;
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struct TileStatus;
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struct SiteRouter
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{
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SiteRouter(int16_t site) : site(site), dirty(false), site_ok(true) {}
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std::unordered_set<CellInfo *> cells_in_site;
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const int16_t site;
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mutable bool dirty;
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mutable bool site_ok;
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void bindBel(CellInfo *cell);
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void unbindBel(CellInfo *cell);
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bool checkSiteRouting(const Context *ctx, const TileStatus &tile_status) const;
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};
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NEXTPNR_NAMESPACE_END
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