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Implement the placement validity checker

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Signed-off-by: David Shah <davey1576@gmail.com>
This commit is contained in:
David Shah 2018-06-12 13:45:59 +02:00
parent 031d8e811f
commit 47eeda40bc
4 changed files with 61 additions and 2 deletions
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4
common/place.cc
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@ -28,6 +28,7 @@
#include <string.h>
#include <vector>
#include "arch_place.h"
#include "log.h"
#include "place.h"
@ -102,7 +103,8 @@ void place_design(Design *design)
while ((bi != blist.end()) &&
((design->chip.getBelType(*bi) != bel_type ||
!design->chip.checkBelAvail(*bi))))
!design->chip.checkBelAvail(*bi)) ||
!isValidBelForCell(design, cell, *bi)))
bi++;
if (bi == blist.end())
log_error("Too many \'%s\' used in design\n",

25
dummy/arch_place.cc Normal file
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@ -0,0 +1,25 @@
/*
* nextpnr -- Next Generation Place and Route
*
* Copyright (C) 2018 Clifford Wolf <clifford@clifford.at>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "arch_place.h"
bool isValidBelForCell(Design *design, CellInfo *cell, BelId bel)
{
return true;
}

32
dummy/arch_place.h Normal file
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@ -0,0 +1,32 @@
/*
* nextpnr -- Next Generation Place and Route
*
* Copyright (C) 2018 Clifford Wolf <clifford@clifford.at>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifndef DUMMY_ARCH_PLACE_H
#define DUMMY_ARCH_PLACE_H
#include "nextpnr.h"
// Architecure-specific placement functions
// Whether or not a given cell can be placed at a given Bel
// This is not intended for Bel type checks, but finer-grained constraints
// such as conflicting set/reset signals, etc
bool isValidBelForCell(Design *design, CellInfo *cell, BelId bel);
#endif

2
ice40/arch_place.h
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@ -26,6 +26,6 @@
// Whether or not a given cell can be placed at a given Bel
// This is not intended for Bel type checks, but finer-grained constraints
// such as conflicting set/reset signals, etc
bool isValidBelForCell(Chip *chip, CellInfo *cell, BelId bel);
bool isValidBelForCell(Design *design, CellInfo *cell, BelId bel);
#endif