5e9a96d358
- experiment with notifyBelChange as an auxiliary cells reservation mechanism; - since HCLK pips depend on the coordinates, and not on the tile type, the tile type is copied if necessary; - information about supported types of differential IO primitives has been added to the extra information of the chip; Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
125 lines
3.8 KiB
C++
125 lines
3.8 KiB
C++
#ifndef GOWIN_H
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#define GOWIN_H
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#include "nextpnr.h"
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NEXTPNR_NAMESPACE_BEGIN
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namespace BelFlags {
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static constexpr uint32_t FLAG_SIMPLE_IO = 0x100;
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}
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namespace {
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// Return true if a cell is a LUT
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inline bool type_is_lut(IdString cell_type) { return cell_type.in(id_LUT1, id_LUT2, id_LUT3, id_LUT4); }
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inline bool is_lut(const CellInfo *cell) { return type_is_lut(cell->type); }
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// Return true if a cell is a DFF
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inline bool type_is_dff(IdString cell_type)
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{
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return cell_type.in(id_DFF, id_DFFE, id_DFFN, id_DFFNE, id_DFFS, id_DFFSE, id_DFFNS, id_DFFNSE, id_DFFR, id_DFFRE,
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id_DFFNR, id_DFFNRE, id_DFFP, id_DFFPE, id_DFFNP, id_DFFNPE, id_DFFC, id_DFFCE, id_DFFNC,
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id_DFFNCE);
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}
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inline bool is_dff(const CellInfo *cell) { return type_is_dff(cell->type); }
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// Return true if a cell is a ALU
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inline bool type_is_alu(IdString cell_type) { return cell_type == id_ALU; }
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inline bool is_alu(const CellInfo *cell) { return type_is_alu(cell->type); }
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inline bool type_is_diffio(IdString cell_type)
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{
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return cell_type.in(id_ELVDS_IOBUF, id_ELVDS_IBUF, id_ELVDS_TBUF, id_ELVDS_OBUF, id_TLVDS_IOBUF, id_TLVDS_IBUF,
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id_TLVDS_TBUF, id_TLVDS_OBUF);
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}
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inline bool is_diffio(const CellInfo *cell) { return type_is_diffio(cell->type); }
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inline bool type_is_iologic(IdString cell_type) { return cell_type.in(id_ODDR, id_ODDRC, id_OSER4, id_OSER8); }
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inline bool is_iologic(const CellInfo *cell) { return type_is_iologic(cell->type); }
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// Return true if a cell is a SSRAM
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inline bool type_is_ssram(IdString cell_type) { return cell_type.in(id_RAM16SDP1, id_RAM16SDP2, id_RAM16SDP4); }
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inline bool is_ssram(const CellInfo *cell) { return type_is_ssram(cell->type); }
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// extra data in the chip db
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NPNR_PACKED_STRUCT(struct Bottom_io_cnd_POD {
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int32_t wire_a_net;
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int32_t wire_b_net;
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});
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NPNR_PACKED_STRUCT(struct Bottom_io_POD {
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// simple OBUF
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static constexpr int8_t NORMAL = 0;
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// DDR
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static constexpr int8_t DDR = 1;
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RelSlice<Bottom_io_cnd_POD> conditions;
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});
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NPNR_PACKED_STRUCT(struct Extra_chip_data_POD {
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Bottom_io_POD bottom_io;
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RelSlice<IdString> diff_io_types;
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});
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inline bool is_diff_io_supported(const ChipInfoPOD *chip, IdString type)
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{
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const Extra_chip_data_POD *extra = reinterpret_cast<const Extra_chip_data_POD *>(chip->extra_data.get());
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for (auto &dtype : extra->diff_io_types) {
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if (IdString(dtype) == type) {
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return true;
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}
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}
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return false;
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}
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inline bool have_bottom_io_cnds(const ChipInfoPOD *chip)
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{
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const Extra_chip_data_POD *extra = reinterpret_cast<const Extra_chip_data_POD *>(chip->extra_data.get());
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return extra->bottom_io.conditions.size() != 0;
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}
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inline IdString get_bottom_io_wire_a_net(const ChipInfoPOD *chip, int8_t condition)
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{
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const Extra_chip_data_POD *extra = reinterpret_cast<const Extra_chip_data_POD *>(chip->extra_data.get());
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return IdString(extra->bottom_io.conditions[condition].wire_a_net);
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}
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inline IdString get_bottom_io_wire_b_net(const ChipInfoPOD *chip, int8_t condition)
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{
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const Extra_chip_data_POD *extra = reinterpret_cast<const Extra_chip_data_POD *>(chip->extra_data.get());
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return IdString(extra->bottom_io.conditions[condition].wire_b_net);
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}
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// Bels and pips
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inline bool is_simple_io_bel(const ChipInfoPOD *chip, BelId bel)
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{
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return chip_bel_info(chip, bel).flags & BelFlags::FLAG_SIMPLE_IO;
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}
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} // namespace
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// Bels Z ranges. It is desirable that these numbers be synchronized with the chipdb generator
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namespace BelZ {
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enum
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{
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LUT0_Z = 0,
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LUT7_Z = 14,
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MUX20_Z = 16,
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MUX21_Z = 18,
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MUX23_Z = 22,
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MUX27_Z = 29,
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ALU0_Z = 30, // :35, 6 ALU
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RAMW_Z = 36, // RAM16SDP4
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IOBA_Z = 50,
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IOBB_Z = 51, // +IOBC...IOBL
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IOLOGICA_Z = 70,
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PLL_Z = 275,
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GSR_Z = 276,
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VCC_Z = 277,
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VSS_Z = 278
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};
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}
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NEXTPNR_NAMESPACE_END
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#endif
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