diff options
Diffstat (limited to 'fpga_interchange')
| -rw-r--r-- | fpga_interchange/arch_pack_clusters.cc | 36 |
1 files changed, 13 insertions, 23 deletions
diff --git a/fpga_interchange/arch_pack_clusters.cc b/fpga_interchange/arch_pack_clusters.cc index b338bdaf..18162aa4 100644 --- a/fpga_interchange/arch_pack_clusters.cc +++ b/fpga_interchange/arch_pack_clusters.cc @@ -193,9 +193,6 @@ bool Arch::getClusterPlacement(ClusterId cluster, BelId root_bel, const Context *ctx = getCtx(); const Cluster &packed_cluster = clusters.at(cluster); - IdString GND = id("GND"); - IdString VCC = id("VCC"); - CellInfo *root_cell = getClusterRootCell(cluster); if (!ctx->isValidBelForCellType(root_cell->type, root_bel)) return false; @@ -225,26 +222,18 @@ bool Arch::getClusterPlacement(ClusterId cluster, BelId root_bel, return false; } - if (cluster_node->cell_bel_pins.empty()) { - // Build a cell to bell mapping required to find BELs connected to the cluster ports. - - int32_t mapping = bel_info(chip_info, next_bel).pin_map[get_cell_type_index(cluster_node->type)]; - NPNR_ASSERT(mapping >= 0); + // Build a cell to bell mapping required to find BELs connected to the cluster ports. + dict<IdString, std::vector<IdString>> cell_bel_pins; - const CellBelMapPOD &cell_pin_map = chip_info->cell_map->cell_bel_map[mapping]; - for (const auto &pin_map : cell_pin_map.common_pins) { - IdString cell_pin(pin_map.cell_pin); - IdString bel_pin(pin_map.bel_pin); + int32_t mapping = bel_info(chip_info, next_bel).pin_map[get_cell_type_index(cluster_node->type)]; + NPNR_ASSERT(mapping >= 0); - // Skip assigned LUT pins, as they are already mapped! - if (cluster_node->lut_cell.lut_pins.count(cell_pin) && cluster_node->cell_bel_pins.count(cell_pin)) - continue; + const CellBelMapPOD &cell_pin_map = chip_info->cell_map->cell_bel_map[mapping]; + for (const auto &pin_map : cell_pin_map.common_pins) { + IdString cell_pin(pin_map.cell_pin); + IdString bel_pin(pin_map.bel_pin); - if (cell_pin == GND || cell_pin == VCC) - continue; - - cluster_node->cell_bel_pins[cell_pin].push_back(bel_pin); - } + cell_bel_pins[cell_pin].push_back(bel_pin); } placement.emplace_back(cluster_node, next_bel); @@ -256,13 +245,14 @@ bool Arch::getClusterPlacement(ClusterId cluster, BelId root_bel, IdString port = port_cell.first; CellInfo *cell = port_cell.second; + NPNR_ASSERT(cell_bel_pins.count(port)); + PortType port_type = cluster_node->ports.at(port).type; if (port_type == PORT_INOUT) continue; - auto &cell_bel_pins = cluster_node->cell_bel_pins.at(port); - for (auto &bel_pin : cell_bel_pins) { + for (auto &bel_pin : cell_bel_pins.at(port)) { WireId bel_pin_wire = ctx->getBelPinWire(next_bel, bel_pin); ExpansionDirection direction = port_type == PORT_IN ? CLUSTER_UPHILL_DIR : CLUSTER_DOWNHILL_DIR; @@ -335,7 +325,7 @@ Loc Arch::getClusterOffset(const CellInfo *cell) const bool Arch::isClusterStrict(const CellInfo *cell) const { return true; } -void dump_clusters(const ChipInfoPOD *chip_info, Context *ctx) +static void dump_clusters(const ChipInfoPOD *chip_info, Context *ctx) { for (size_t i = 0; i < chip_info->clusters.size(); ++i) { const auto &cluster = chip_info->clusters[i]; |