diff options
Diffstat (limited to 'ice40/arch.cc')
-rw-r--r-- | ice40/arch.cc | 350 |
1 files changed, 213 insertions, 137 deletions
diff --git a/ice40/arch.cc b/ice40/arch.cc index 51fa6472..4e9baf7e 100644 --- a/ice40/arch.cc +++ b/ice40/arch.cc @@ -2,6 +2,7 @@ * nextpnr -- Next Generation Place and Route * * Copyright (C) 2018 Clifford Wolf <clifford@symbioticeda.com> + * Copyright (C) 2018 Serge Bazanski <q3k@symbioticeda.com> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -187,6 +188,13 @@ Arch::Arch(ArchArgs args) : args(args) id_i3 = id("I3"); id_dff_en = id("DFF_ENABLE"); id_neg_clk = id("NEG_CLK"); + id_cin = id("CIN"); + id_cout = id("COUT"); + id_o = id("O"); + id_lo = id("LO"); + id_icestorm_ram = id("ICESTORM_RAM"); + id_rclk = id("RCLK"); + id_wclk = id("WCLK"); } // ----------------------------------------------------------------------- @@ -291,23 +299,6 @@ BelRange Arch::getBelsByTile(int x, int y) const return br; } -BelRange Arch::getBelsAtSameTile(BelId bel) const -{ - BelRange br; - NPNR_ASSERT(bel != BelId()); - int x = chip_info->bel_data[bel.index].x; - int y = chip_info->bel_data[bel.index].y; - int start = bel.index, end = bel.index; - while (start >= 0 && chip_info->bel_data[start].x == x && chip_info->bel_data[start].y == y) - start--; - start++; - br.b.cursor = start; - while (end < chip_info->num_bels && chip_info->bel_data[end].x == x && chip_info->bel_data[end].y == y) - end++; - br.e.cursor = end; - return br; -} - PortType Arch::getBelPinType(BelId bel, PortPin pin) const { NPNR_ASSERT(bel != BelId()); @@ -331,11 +322,12 @@ WireId Arch::getBelPinWire(BelId bel, PortPin pin) const int num_bel_wires = chip_info->bel_data[bel.index].num_bel_wires; const BelWirePOD *bel_wires = chip_info->bel_data[bel.index].bel_wires.get(); - for (int i = 0; i < num_bel_wires; i++) + for (int i = 0; i < num_bel_wires; i++) { if (bel_wires[i].port == pin) { ret.index = bel_wires[i].wire_index; break; } + } return ret; } @@ -448,11 +440,103 @@ GroupId Arch::getGroupByName(IdString name) const return GroupId(); } -IdString Arch::getGroupName(GroupId group) const { return IdString(); } +IdString Arch::getGroupName(GroupId group) const +{ + std::string suffix; + + switch (group.type) { + case GroupId::TYPE_FRAME: + suffix = "tile"; + break; + case GroupId::TYPE_MAIN_SW: + suffix = "main_sw"; + break; + case GroupId::TYPE_LOCAL_SW: + suffix = "local_sw"; + break; + case GroupId::TYPE_LC0_SW: + suffix = "lc0_sw"; + break; + case GroupId::TYPE_LC1_SW: + suffix = "lc1_sw"; + break; + case GroupId::TYPE_LC2_SW: + suffix = "lc2_sw"; + break; + case GroupId::TYPE_LC3_SW: + suffix = "lc3_sw"; + break; + case GroupId::TYPE_LC4_SW: + suffix = "lc4_sw"; + break; + case GroupId::TYPE_LC5_SW: + suffix = "lc5_sw"; + break; + case GroupId::TYPE_LC6_SW: + suffix = "lc6_sw"; + break; + case GroupId::TYPE_LC7_SW: + suffix = "lc7_sw"; + break; + default: + return IdString(); + } + + return id("X" + std::to_string(group.x) + "/Y" + std::to_string(group.y) + "/" + suffix); +} std::vector<GroupId> Arch::getGroups() const { std::vector<GroupId> ret; + + for (int y = 0; y < chip_info->height; y++) { + for (int x = 0; x < chip_info->width; x++) { + TileType type = chip_info->tile_grid[y * chip_info->width + x]; + if (type == TILE_NONE) + continue; + + GroupId group; + group.type = GroupId::TYPE_FRAME; + group.x = x; + group.y = y; + // ret.push_back(group); + + group.type = GroupId::TYPE_MAIN_SW; + ret.push_back(group); + + group.type = GroupId::TYPE_LOCAL_SW; + ret.push_back(group); + +#if 0 + if (type == TILE_LOGIC) + { + group.type = GroupId::TYPE_LC0_SW; + ret.push_back(group); + + group.type = GroupId::TYPE_LC1_SW; + ret.push_back(group); + + group.type = GroupId::TYPE_LC2_SW; + ret.push_back(group); + + group.type = GroupId::TYPE_LC3_SW; + ret.push_back(group); + + group.type = GroupId::TYPE_LC4_SW; + ret.push_back(group); + + group.type = GroupId::TYPE_LC5_SW; + ret.push_back(group); + + group.type = GroupId::TYPE_LC6_SW; + ret.push_back(group); + + group.type = GroupId::TYPE_LC7_SW; + ret.push_back(group); + } +#endif + } + } return ret; } @@ -482,14 +566,6 @@ std::vector<GroupId> Arch::getGroupGroups(GroupId group) const // ----------------------------------------------------------------------- -void Arch::estimatePosition(BelId bel, int &x, int &y, bool &gb) const -{ - NPNR_ASSERT(bel != BelId()); - x = chip_info->bel_data[bel.index].x; - y = chip_info->bel_data[bel.index].y; - gb = chip_info->bel_data[bel.index].type == TYPE_SB_GB; -} - delay_t Arch::estimateDelay(WireId src, WireId dst) const { NPNR_ASSERT(src != WireId()); @@ -511,10 +587,18 @@ delay_t Arch::estimateDelay(WireId src, WireId dst) const return xscale * abs(xd) + yscale * abs(yd) + offset; } -delay_t Arch::getBudgetOverride(const PortRef& pr, delay_t v) const +delay_t Arch::getBudgetOverride(NetInfo *net_info, int user_idx, delay_t budget) const { - if (pr.port == id("COUT")) return 0; - return v; + const auto& driver = net_info->driver; + if (driver.port == id_cout) { + const auto& sink = net_info->users[user_idx]; + auto driver_loc = getBelLocation(driver.cell->bel); + auto sink_loc = getBelLocation(sink.cell->bel); + if (driver_loc.y == sink_loc.y) + return 0; + return 250; + } + return budget; } // ----------------------------------------------------------------------- @@ -574,22 +658,70 @@ std::vector<GraphicElement> Arch::getDecalGraphics(DecalId decal) const std::vector<GraphicElement> ret; if (decal.type == DecalId::TYPE_FRAME) { - for (int x = 0; x <= chip_info->width; x++) - for (int y = 0; y <= chip_info->height; y++) { - GraphicElement el; - el.type = GraphicElement::G_LINE; - el.x1 = x - 0.05, el.x2 = x + 0.05, el.y1 = y, el.y2 = y, el.z = 0; - ret.push_back(el); - el.x1 = x, el.x2 = x, el.y1 = y - 0.05, el.y2 = y + 0.05, el.z = 0; - ret.push_back(el); - } + /* nothing */ + } + + if (decal.type == DecalId::TYPE_GROUP) { + int type = (decal.index >> 16) & 255; + int x = (decal.index >> 8) & 255; + int y = decal.index & 255; + + if (type == GroupId::TYPE_FRAME) { + GraphicElement el; + el.type = GraphicElement::TYPE_LINE; + el.style = GraphicElement::STYLE_FRAME; + + el.x1 = x + 0.01, el.x2 = x + 0.02, el.y1 = y + 0.01, el.y2 = y + 0.01; + ret.push_back(el); + el.x1 = x + 0.01, el.x2 = x + 0.01, el.y1 = y + 0.01, el.y2 = y + 0.02; + ret.push_back(el); + + el.x1 = x + 0.99, el.x2 = x + 0.98, el.y1 = y + 0.01, el.y2 = y + 0.01; + ret.push_back(el); + el.x1 = x + 0.99, el.x2 = x + 0.99, el.y1 = y + 0.01, el.y2 = y + 0.02; + ret.push_back(el); + + el.x1 = x + 0.99, el.x2 = x + 0.98, el.y1 = y + 0.99, el.y2 = y + 0.99; + ret.push_back(el); + el.x1 = x + 0.99, el.x2 = x + 0.99, el.y1 = y + 0.99, el.y2 = y + 0.98; + ret.push_back(el); + + el.x1 = x + 0.01, el.x2 = x + 0.02, el.y1 = y + 0.99, el.y2 = y + 0.99; + ret.push_back(el); + el.x1 = x + 0.01, el.x2 = x + 0.01, el.y1 = y + 0.99, el.y2 = y + 0.98; + ret.push_back(el); + } + + if (type == GroupId::TYPE_MAIN_SW) { + GraphicElement el; + el.type = GraphicElement::TYPE_BOX; + el.style = GraphicElement::STYLE_FRAME; + + el.x1 = x + main_swbox_x1; + el.x2 = x + main_swbox_x2; + el.y1 = y + main_swbox_y1; + el.y2 = y + main_swbox_y2; + ret.push_back(el); + } + + if (type == GroupId::TYPE_LOCAL_SW) { + GraphicElement el; + el.type = GraphicElement::TYPE_BOX; + el.style = GraphicElement::STYLE_FRAME; + + el.x1 = x + local_swbox_x1; + el.x2 = x + local_swbox_x2; + el.y1 = y + local_swbox_y1; + el.y2 = y + local_swbox_y2; + ret.push_back(el); + } } if (decal.type == DecalId::TYPE_WIRE) { int n = chip_info->wire_data[decal.index].num_segments; const WireSegmentPOD *p = chip_info->wire_data[decal.index].segments.get(); - GraphicElement::style_t style = decal.active ? GraphicElement::G_ACTIVE : GraphicElement::G_INACTIVE; + GraphicElement::style_t style = decal.active ? GraphicElement::STYLE_ACTIVE : GraphicElement::STYLE_INACTIVE; for (int i = 0; i < n; i++) gfxTileWire(ret, p[i].x, p[i].y, GfxTileWireId(p[i].index), style); @@ -597,7 +729,7 @@ std::vector<GraphicElement> Arch::getDecalGraphics(DecalId decal) const if (decal.type == DecalId::TYPE_PIP) { const PipInfoPOD &p = chip_info->pip_data[decal.index]; - GraphicElement::style_t style = decal.active ? GraphicElement::G_ACTIVE : GraphicElement::G_HIDDEN; + GraphicElement::style_t style = decal.active ? GraphicElement::STYLE_ACTIVE : GraphicElement::STYLE_HIDDEN; gfxTilePip(ret, p.x, p.y, GfxTileWireId(p.src_seg), GfxTileWireId(p.dst_seg), style); } @@ -609,111 +741,40 @@ std::vector<GraphicElement> Arch::getDecalGraphics(DecalId decal) const if (bel_type == TYPE_ICESTORM_LC) { GraphicElement el; - el.type = GraphicElement::G_BOX; - el.style = decal.active ? GraphicElement::G_ACTIVE : GraphicElement::G_INACTIVE; + el.type = GraphicElement::TYPE_BOX; + el.style = decal.active ? GraphicElement::STYLE_ACTIVE : GraphicElement::STYLE_INACTIVE; el.x1 = chip_info->bel_data[bel.index].x + logic_cell_x1; el.x2 = chip_info->bel_data[bel.index].x + logic_cell_x2; el.y1 = chip_info->bel_data[bel.index].y + logic_cell_y1 + (chip_info->bel_data[bel.index].z) * logic_cell_pitch; el.y2 = chip_info->bel_data[bel.index].y + logic_cell_y2 + (chip_info->bel_data[bel.index].z) * logic_cell_pitch; - el.z = 0; ret.push_back(el); - - if (chip_info->bel_data[bel.index].z == 0) { - int tx = chip_info->bel_data[bel.index].x; - int ty = chip_info->bel_data[bel.index].y; - - // Main switchbox - GraphicElement main_sw; - main_sw.type = GraphicElement::G_BOX; - main_sw.style = GraphicElement::G_FRAME; - main_sw.x1 = tx + main_swbox_x1; - main_sw.x2 = tx + main_swbox_x2; - main_sw.y1 = ty + main_swbox_y1; - main_sw.y2 = ty + main_swbox_y2; - ret.push_back(main_sw); - - // Local tracks to LUT input switchbox - GraphicElement local_sw; - local_sw.type = GraphicElement::G_BOX; - local_sw.style = GraphicElement::G_FRAME; - local_sw.x1 = tx + local_swbox_x1; - local_sw.x2 = tx + local_swbox_x2; - local_sw.y1 = ty + local_swbox_y1; - local_sw.y2 = ty + local_swbox_y2; - local_sw.z = 0; - ret.push_back(local_sw); - } } if (bel_type == TYPE_SB_IO) { - if (chip_info->bel_data[bel.index].x == 0 || chip_info->bel_data[bel.index].x == chip_info->width - 1) { - GraphicElement el; - el.type = GraphicElement::G_BOX; - el.x1 = chip_info->bel_data[bel.index].x + 0.1; - el.x2 = chip_info->bel_data[bel.index].x + 0.9; - if (chip_info->bel_data[bel.index].z == 0) { - el.y1 = chip_info->bel_data[bel.index].y + 0.10; - el.y2 = chip_info->bel_data[bel.index].y + 0.45; - } else { - el.y1 = chip_info->bel_data[bel.index].y + 0.55; - el.y2 = chip_info->bel_data[bel.index].y + 0.90; - } - el.z = 0; - ret.push_back(el); - } else { - GraphicElement el; - el.type = GraphicElement::G_BOX; - if (chip_info->bel_data[bel.index].z == 0) { - el.x1 = chip_info->bel_data[bel.index].x + 0.10; - el.x2 = chip_info->bel_data[bel.index].x + 0.45; - } else { - el.x1 = chip_info->bel_data[bel.index].x + 0.55; - el.x2 = chip_info->bel_data[bel.index].x + 0.90; - } - el.y1 = chip_info->bel_data[bel.index].y + 0.1; - el.y2 = chip_info->bel_data[bel.index].y + 0.9; - el.z = 0; - ret.push_back(el); - } + GraphicElement el; + el.type = GraphicElement::TYPE_BOX; + el.style = decal.active ? GraphicElement::STYLE_ACTIVE : GraphicElement::STYLE_INACTIVE; + el.x1 = chip_info->bel_data[bel.index].x + logic_cell_x1; + el.x2 = chip_info->bel_data[bel.index].x + logic_cell_x2; + el.y1 = chip_info->bel_data[bel.index].y + logic_cell_y1 + + (4 * chip_info->bel_data[bel.index].z) * logic_cell_pitch; + el.y2 = chip_info->bel_data[bel.index].y + logic_cell_y2 + + (4 * chip_info->bel_data[bel.index].z + 3) * logic_cell_pitch; + ret.push_back(el); } if (bel_type == TYPE_ICESTORM_RAM) { for (int i = 0; i < 2; i++) { - int tx = chip_info->bel_data[bel.index].x; - int ty = chip_info->bel_data[bel.index].y + i; - GraphicElement el; - el.type = GraphicElement::G_BOX; - el.style = decal.active ? GraphicElement::G_ACTIVE : GraphicElement::G_INACTIVE; + el.type = GraphicElement::TYPE_BOX; + el.style = decal.active ? GraphicElement::STYLE_ACTIVE : GraphicElement::STYLE_INACTIVE; el.x1 = chip_info->bel_data[bel.index].x + logic_cell_x1; el.x2 = chip_info->bel_data[bel.index].x + logic_cell_x2; - el.y1 = chip_info->bel_data[bel.index].y + logic_cell_y1; - el.y2 = chip_info->bel_data[bel.index].y + logic_cell_y2 + 7 * logic_cell_pitch; - el.z = 0; + el.y1 = chip_info->bel_data[bel.index].y + logic_cell_y1 + i; + el.y2 = chip_info->bel_data[bel.index].y + logic_cell_y2 + i + 7 * logic_cell_pitch; ret.push_back(el); - - // Main switchbox - GraphicElement main_sw; - main_sw.type = GraphicElement::G_BOX; - main_sw.style = GraphicElement::G_FRAME; - main_sw.x1 = tx + main_swbox_x1; - main_sw.x2 = tx + main_swbox_x2; - main_sw.y1 = ty + main_swbox_y1; - main_sw.y2 = ty + main_swbox_y2; - ret.push_back(main_sw); - - // Local tracks to LUT input switchbox - GraphicElement local_sw; - local_sw.type = GraphicElement::G_BOX; - local_sw.style = GraphicElement::G_FRAME; - local_sw.x1 = tx + local_swbox_x1; - local_sw.x2 = tx + local_swbox_x2; - local_sw.y1 = ty + local_swbox_y1; - local_sw.y2 = ty + local_swbox_y2; - local_sw.z = 0; - ret.push_back(local_sw); } } } @@ -725,20 +786,28 @@ std::vector<GraphicElement> Arch::getDecalGraphics(DecalId decal) const bool Arch::getCellDelay(const CellInfo *cell, IdString fromPort, IdString toPort, delay_t &delay) const { - if (cell->type == id("ICESTORM_LC")) { - if ((fromPort == id("I0") || fromPort == id("I1") || fromPort == id("I2") || fromPort == id("I3")) && - (toPort == id("O") || toPort == id("LO"))) { + if (cell->type == id_icestorm_lc) { + if ((fromPort == id_i0 || fromPort == id_i1 || fromPort == id_i2 || fromPort == id_i3) && + (toPort == id_o || toPort == id_lo)) { delay = 450; return true; - } else if (fromPort == id("CIN") && toPort == id("COUT")) { + } else if (fromPort == id_cin && toPort == id_cout) { delay = 120; return true; - } else if (fromPort == id("I1") && toPort == id("COUT")) { + } else if (fromPort == id_i1 && toPort == id_cout) { delay = 260; return true; - } else if (fromPort == id("I2") && toPort == id("COUT")) { + } else if (fromPort == id_i2 && toPort == id_cout) { delay = 230; return true; + } else if (fromPort == id_clk && toPort == id_o) { + delay = 540; + return true; + } + } else if (cell->type == id_icestorm_ram) { + if (fromPort == id_rclk) { + delay = 2140; + return true; } } return false; @@ -746,9 +815,14 @@ bool Arch::getCellDelay(const CellInfo *cell, IdString fromPort, IdString toPort IdString Arch::getPortClock(const CellInfo *cell, IdString port) const { - if (cell->type == id("ICESTORM_LC") && bool_or_default(cell->params, id("DFF_ENABLE"))) { - if (port != id("LO") && port != id("CIN") && port != id("COUT")) - return id("CLK"); + if (cell->type == id_icestorm_lc && cell->lcInfo.dffEnable) { + if (port != id_lo && port != id_cin && port != id_cout) + return id_clk; + } else if (cell->type == id_icestorm_ram) { + if (port.str(this)[0] == 'R') + return id_rclk; + else + return id_wclk; } return IdString(); } @@ -757,6 +831,8 @@ bool Arch::isClockPort(const CellInfo *cell, IdString port) const { if (cell->type == id("ICESTORM_LC") && port == id("CLK")) return true; + if (cell->type == id("ICESTORM_RAM") && (port == id("RCLK") || (port == id("WCLK")))) + return true; return false; } |