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/*
* 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 CHIP_H
#define CHIP_H
#ifndef NEXTPNR_H
#error Include "chip.h" via "nextpnr.h" only.
#endif
NEXTPNR_NAMESPACE_BEGIN
struct DelayInfo
{
float delay = 0;
float raiseDelay() const { return delay; }
float fallDelay() const { return delay; }
float avgDelay() const { return delay; }
DelayInfo operator+(const DelayInfo &other) const
{
DelayInfo ret;
ret.delay = this->delay + other.delay;
return ret;
}
};
// -----------------------------------------------------------------------
enum BelType
{
TYPE_NONE,
TYPE_ICESTORM_LC,
TYPE_ICESTORM_RAM,
TYPE_SB_IO,
TYPE_SB_GB
};
IdString belTypeToId(BelType type);
BelType belTypeFromId(IdString id);
enum PortPin
{
PIN_NONE,
#define X(t) PIN_##t,
#include "portpins.inc"
#undef X
};
IdString portPinToId(PortPin type);
PortPin portPinFromId(IdString id);
// -----------------------------------------------------------------------
struct BelWirePOD
{
int32_t wire_index;
PortPin port;
};
struct BelInfoPOD
{
const char *name;
BelType type;
int num_bel_wires;
BelWirePOD *bel_wires;
int8_t x, y, z;
};
struct BelPortPOD
{
int32_t bel_index;
PortPin port;
};
struct PipInfoPOD
{
int32_t src, dst;
float delay;
int8_t x, y;
int16_t switch_mask;
int32_t switch_index;
};
struct WireInfoPOD
{
const char *name;
int num_uphill, num_downhill;
int *pips_uphill, *pips_downhill;
int num_bels_downhill;
BelPortPOD bel_uphill;
BelPortPOD *bels_downhill;
float x, y;
};
enum TileType
{
TILE_NONE = 0,
TILE_LOGIC = 1,
TILE_IO = 2,
TILE_RAMB = 3,
TILE_RAMT = 4,
};
struct ConfigBitPOD
{
int8_t row, col;
};
struct ConfigEntryPOD
{
const char *name;
int num_bits;
ConfigBitPOD *bits;
};
struct TileInfoPOD
{
int8_t cols, rows;
int num_config_entries;
ConfigEntryPOD *entries;
};
static const int max_switch_bits = 5;
struct SwitchInfoPOD
{
int8_t x, y;
int num_bits;
ConfigBitPOD cbits[max_switch_bits];
};
struct IerenInfoPOD
{
int8_t iox, ioy, ioz;
int8_t ierx, iery, ierz;
};
struct BitstreamInfoPOD
{
int num_switches, num_ierens;
TileInfoPOD *tiles_nonrouting;
SwitchInfoPOD *switches;
IerenInfoPOD *ierens;
};
struct ChipInfoPOD
{
int width, height;
int num_bels, num_wires, num_pips;
int num_switches;
BelInfoPOD *bel_data;
WireInfoPOD *wire_data;
PipInfoPOD *pip_data;
TileType *tile_grid;
BitstreamInfoPOD *bits_info;
};
extern ChipInfoPOD chip_info_384;
extern ChipInfoPOD chip_info_1k;
extern ChipInfoPOD chip_info_5k;
extern ChipInfoPOD chip_info_8k;
// -----------------------------------------------------------------------
struct BelId
{
int32_t index = -1;
bool operator==(const BelId &other) const { return index == other.index; }
bool operator!=(const BelId &other) const { return index != other.index; }
};
struct WireId
{
int32_t index = -1;
bool operator==(const WireId &other) const { return index == other.index; }
bool operator!=(const WireId &other) const { return index != other.index; }
};
struct PipId
{
int32_t index = -1;
bool operator==(const PipId &other) const { return index == other.index; }
bool operator!=(const PipId &other) const { return index != other.index; }
};
struct BelPin
{
BelId bel;
PortPin pin;
};
NEXTPNR_NAMESPACE_END
namespace std {
template <> struct hash<NEXTPNR_NAMESPACE_PREFIX BelId>
{
std::size_t operator()(const NEXTPNR_NAMESPACE_PREFIX BelId &bel) const noexcept
{
return bel.index;
}
};
template <> struct hash<NEXTPNR_NAMESPACE_PREFIX WireId>
{
std::size_t operator()(const NEXTPNR_NAMESPACE_PREFIX WireId &wire) const noexcept
{
return wire.index;
}
};
template <> struct hash<NEXTPNR_NAMESPACE_PREFIX PipId>
{
std::size_t operator()(const NEXTPNR_NAMESPACE_PREFIX PipId &wire) const noexcept
{
return wire.index;
}
};
} // namespace std
NEXTPNR_NAMESPACE_BEGIN
// -----------------------------------------------------------------------
struct BelIterator
{
int cursor;
BelIterator operator++()
{
cursor++;
return *this;
}
BelIterator operator++(int)
{
BelIterator prior(*this);
cursor++;
return prior;
}
bool operator!=(const BelIterator &other) const
{
return cursor != other.cursor;
}
bool operator==(const BelIterator &other) const
{
return cursor == other.cursor;
}
BelId operator*() const
{
BelId ret;
ret.index = cursor;
return ret;
}
};
struct BelRange
{
BelIterator b, e;
BelIterator begin() const { return b; }
BelIterator end() const { return e; }
};
// -----------------------------------------------------------------------
struct BelPinIterator
{
BelPortPOD *ptr = nullptr;
void operator++() { ptr++; }
bool operator!=(const BelPinIterator &other) const
{
return ptr != other.ptr;
}
BelPin operator*() const
{
BelPin ret;
ret.bel.index = ptr->bel_index;
ret.pin = ptr->port;
return ret;
}
};
struct BelPinRange
{
BelPinIterator b, e;
BelPinIterator begin() const { return b; }
BelPinIterator end() const { return e; }
};
// -----------------------------------------------------------------------
struct WireIterator
{
int cursor = -1;
void operator++() { cursor++; }
bool operator!=(const WireIterator &other) const
{
return cursor != other.cursor;
}
WireId operator*() const
{
WireId ret;
ret.index = cursor;
return ret;
}
};
struct WireRange
{
WireIterator b, e;
WireIterator begin() const { return b; }
WireIterator end() const { return e; }
};
// -----------------------------------------------------------------------
struct AllPipIterator
{
int cursor = -1;
void operator++() { cursor++; }
bool operator!=(const AllPipIterator &other) const
{
return cursor != other.cursor;
}
PipId operator*() const
{
PipId ret;
ret.index = cursor;
return ret;
}
};
struct AllPipRange
{
AllPipIterator b, e;
AllPipIterator begin() const { return b; }
AllPipIterator end() const { return e; }
};
// -----------------------------------------------------------------------
struct PipIterator
{
int *cursor = nullptr;
void operator++() { cursor++; }
bool operator!=(const PipIterator &other) const
{
return cursor != other.cursor;
}
PipId operator*() const
{
PipId ret;
ret.index = *cursor;
return ret;
}
};
struct PipRange
{
PipIterator b, e;
PipIterator begin() const { return b; }
PipIterator end() const { return e; }
};
// -----------------------------------------------------------------------
struct ChipArgs
{
enum
{
NONE,
LP384,
LP1K,
LP8K,
HX1K,
HX8K,
UP5K
} type = NONE;
};
struct Chip
{
ChipInfoPOD chip_info;
mutable std::unordered_map<IdString, int> bel_by_name;
mutable std::unordered_map<IdString, int> wire_by_name;
mutable std::unordered_map<IdString, int> pip_by_name;
std::vector<IdString> bel_to_cell;
std::vector<IdString> wire_to_net;
std::vector<IdString> pip_to_net;
std::vector<bool> switches_locked;
Chip(ChipArgs args);
ChipArgs args;
// -------------------------------------------------
std::string getChipName();
BelId getBelByName(IdString name) const;
IdString getBelName(BelId bel) const
{
assert(bel != BelId());
return chip_info.bel_data[bel.index].name;
}
void bindBel(BelId bel, IdString cell)
{
assert(bel != BelId());
assert(bel_to_cell[bel.index] == IdString());
bel_to_cell[bel.index] = cell;
}
void unbindBel(BelId bel)
{
assert(bel != BelId());
assert(bel_to_cell[bel.index] != IdString());
bel_to_cell[bel.index] = IdString();
}
bool checkBelAvail(BelId bel) const
{
assert(bel != BelId());
return bel_to_cell[bel.index] == IdString();
}
IdString getBelCell(BelId bel, bool conflicting = false) const
{
assert(bel != BelId());
return bel_to_cell[bel.index];
}
BelRange getBels() const
{
BelRange range;
range.b.cursor = 0;
range.e.cursor = chip_info.num_bels;
return range;
}
BelRange getBelsByType(BelType type) const
{
BelRange range;
// FIXME
#if 0
if (type == "TYPE_A") {
range.b.cursor = bels_type_a_begin;
range.e.cursor = bels_type_a_end;
}
...
#endif
return range;
}
BelRange getBelsAtSameTile(BelId bel) const;
BelType getBelType(BelId bel) const
{
assert(bel != BelId());
return chip_info.bel_data[bel.index].type;
}
WireId getWireBelPin(BelId bel, PortPin pin) const;
BelPin getBelPinUphill(WireId wire) const
{
BelPin ret;
assert(wire != WireId());
if (chip_info.wire_data[wire.index].bel_uphill.bel_index >= 0) {
ret.bel.index =
chip_info.wire_data[wire.index].bel_uphill.bel_index;
ret.pin = chip_info.wire_data[wire.index].bel_uphill.port;
}
return ret;
}
BelPinRange getBelPinsDownhill(WireId wire) const
{
BelPinRange range;
assert(wire != WireId());
range.b.ptr = chip_info.wire_data[wire.index].bels_downhill;
range.e.ptr =
range.b.ptr + chip_info.wire_data[wire.index].num_bels_downhill;
return range;
}
// -------------------------------------------------
WireId getWireByName(IdString name) const;
IdString getWireName(WireId wire) const
{
assert(wire != WireId());
return chip_info.wire_data[wire.index].name;
}
void bindWire(WireId wire, IdString net)
{
assert(wire != WireId());
assert(wire_to_net[wire.index] == IdString());
wire_to_net[wire.index] = net;
}
void unbindWire(WireId wire)
{
assert(wire != WireId());
assert(wire_to_net[wire.index] != IdString());
wire_to_net[wire.index] = IdString();
}
bool checkWireAvail(WireId wire) const
{
assert(wire != WireId());
return wire_to_net[wire.index] == IdString();
}
IdString getWireNet(WireId wire, bool conflicting = false) const
{
assert(wire != WireId());
return wire_to_net[wire.index];
}
WireRange getWires() const
{
WireRange range;
range.b.cursor = 0;
range.e.cursor = chip_info.num_wires;
return range;
}
// -------------------------------------------------
PipId getPipByName(IdString name) const;
IdString getPipName(PipId pip) const
{
assert(pip != PipId());
std::string src_name =
chip_info.wire_data[chip_info.pip_data[pip.index].src].name;
std::string dst_name =
chip_info.wire_data[chip_info.pip_data[pip.index].dst].name;
return src_name + "->" + dst_name;
}
void bindPip(PipId pip, IdString net)
{
assert(pip != PipId());
assert(pip_to_net[pip.index] == IdString());
assert(!switches_locked[chip_info.pip_data[pip.index].switch_index]);
pip_to_net[pip.index] = net;
switches_locked[chip_info.pip_data[pip.index].switch_index] = true;
}
void unbindPip(PipId pip)
{
assert(pip != PipId());
assert(pip_to_net[pip.index] != IdString());
assert(switches_locked[chip_info.pip_data[pip.index].switch_index]);
pip_to_net[pip.index] = IdString();
switches_locked[chip_info.pip_data[pip.index].switch_index] = false;
}
bool checkPipAvail(PipId pip) const
{
assert(pip != PipId());
if (args.type == ChipArgs::UP5K) {
int x = chip_info.pip_data[pip.index].x;
if (x == 0 || x == (chip_info.width - 1))
return false;
}
return !switches_locked[chip_info.pip_data[pip.index].switch_index];
}
IdString getPipNet(PipId pip, bool conflicting = false) const
{
assert(pip != PipId());
return pip_to_net[pip.index];
}
AllPipRange getPips() const
{
AllPipRange range;
range.b.cursor = 0;
range.e.cursor = chip_info.num_pips;
return range;
}
WireId getPipSrcWire(PipId pip) const
{
WireId wire;
assert(pip != PipId());
wire.index = chip_info.pip_data[pip.index].src;
return wire;
}
WireId getPipDstWire(PipId pip) const
{
WireId wire;
assert(pip != PipId());
wire.index = chip_info.pip_data[pip.index].dst;
return wire;
}
DelayInfo getPipDelay(PipId pip) const
{
DelayInfo delay;
assert(pip != PipId());
delay.delay = chip_info.pip_data[pip.index].delay;
return delay;
}
PipRange getPipsDownhill(WireId wire) const
{
PipRange range;
assert(wire != WireId());
range.b.cursor = chip_info.wire_data[wire.index].pips_downhill;
range.e.cursor =
range.b.cursor + chip_info.wire_data[wire.index].num_downhill;
return range;
}
PipRange getPipsUphill(WireId wire) const
{
PipRange range;
assert(wire != WireId());
range.b.cursor = chip_info.wire_data[wire.index].pips_uphill;
range.e.cursor =
range.b.cursor + chip_info.wire_data[wire.index].num_uphill;
return range;
}
PipRange getWireAliases(WireId wire) const
{
PipRange range;
assert(wire != WireId());
range.b.cursor = nullptr;
range.e.cursor = nullptr;
return range;
}
// -------------------------------------------------
void getBelPosition(BelId bel, float &x, float &y) const;
void getWirePosition(WireId wire, float &x, float &y) const;
void getPipPosition(PipId pip, float &x, float &y) const;
std::vector<GraphicElement> getBelGraphics(BelId bel) const;
std::vector<GraphicElement> getWireGraphics(WireId wire) const;
std::vector<GraphicElement> getPipGraphics(PipId pip) const;
std::vector<GraphicElement> getFrameGraphics() const;
};
NEXTPNR_NAMESPACE_END
#endif
|