diff options
Diffstat (limited to 'ice40/pack.cc')
| -rw-r--r-- | ice40/pack.cc | 363 |
1 files changed, 176 insertions, 187 deletions
diff --git a/ice40/pack.cc b/ice40/pack.cc index fcbdf2bd..0220d4fe 100644 --- a/ice40/pack.cc +++ b/ice40/pack.cc @@ -41,7 +41,7 @@ static void pack_lut_lutffs(Context *ctx) if (ctx->verbose) log_info("cell '%s' is of type '%s'\n", ci->name.c_str(ctx), ci->type.c_str(ctx)); if (is_lut(ctx, ci)) { - std::unique_ptr<CellInfo> packed = create_ice_cell(ctx, ctx->id("ICESTORM_LC"), ci->name.str(ctx) + "_LC"); + std::unique_ptr<CellInfo> packed = create_ice_cell(ctx, id_ICESTORM_LC, ci->name.str(ctx) + "_LC"); for (auto &attr : ci->attrs) packed->attrs[attr.first] = attr.second; packed_cells.insert(ci->name); @@ -49,14 +49,14 @@ static void pack_lut_lutffs(Context *ctx) log_info("packed cell %s into %s\n", ci->name.c_str(ctx), packed->name.c_str(ctx)); // See if we can pack into a DFF // TODO: LUT cascade - NetInfo *o = ci->ports.at(ctx->id("O")).net; - CellInfo *dff = net_only_drives(ctx, o, is_ff, ctx->id("D"), true); - auto lut_bel = ci->attrs.find(ctx->id("BEL")); + NetInfo *o = ci->ports.at(id_O).net; + CellInfo *dff = net_only_drives(ctx, o, is_ff, id_D, true); + auto lut_bel = ci->attrs.find(id_BEL); bool packed_dff = false; if (dff) { if (ctx->verbose) log_info("found attached dff %s\n", dff->name.c_str(ctx)); - auto dff_bel = dff->attrs.find(ctx->id("BEL")); + auto dff_bel = dff->attrs.find(id_BEL); if (lut_bel != ci->attrs.end() && dff_bel != dff->attrs.end() && lut_bel->second != dff_bel->second) { // Locations don't match, can't pack } else { @@ -65,10 +65,10 @@ static void pack_lut_lutffs(Context *ctx) ++lut_and_ff; ctx->nets.erase(o->name); if (dff_bel != dff->attrs.end()) - packed->attrs[ctx->id("BEL")] = dff_bel->second; + packed->attrs[id_BEL] = dff_bel->second; for (const auto &attr : dff->attrs) { // BEL is dealt with specially - if (attr.first != ctx->id("BEL")) + if (attr.first != id_BEL) packed->attrs[attr.first] = attr.second; } packed_cells.insert(dff->name); @@ -106,8 +106,7 @@ static void pack_nonlut_ffs(Context *ctx) for (auto &cell : ctx->cells) { CellInfo *ci = cell.second.get(); if (is_ff(ctx, ci)) { - std::unique_ptr<CellInfo> packed = - create_ice_cell(ctx, ctx->id("ICESTORM_LC"), ci->name.str(ctx) + "_DFFLC"); + std::unique_ptr<CellInfo> packed = create_ice_cell(ctx, id_ICESTORM_LC, ci->name.str(ctx) + "_DFFLC"); for (auto &attr : ci->attrs) packed->attrs[attr.first] = attr.second; if (ctx->verbose) @@ -155,25 +154,25 @@ static void pack_carries(Context *ctx) CellInfo *carry_ci_lc; bool ci_value; - bool ci_const = net_is_constant(ctx, ci->ports.at(ctx->id("CI")).net, ci_value); + bool ci_const = net_is_constant(ctx, ci->ports.at(id_CI).net, ci_value); if (ci_const) { carry_ci_lc = nullptr; } else { - carry_ci_lc = net_only_drives(ctx, ci->ports.at(ctx->id("CI")).net, is_lc, ctx->id("I3"), false); + carry_ci_lc = net_only_drives(ctx, ci->ports.at(id_CI).net, is_lc, id_I3, false); } std::set<IdString> i0_matches, i1_matches; - NetInfo *i0_net = ci->ports.at(ctx->id("I0")).net; - NetInfo *i1_net = ci->ports.at(ctx->id("I1")).net; + NetInfo *i0_net = ci->ports.at(id_I0).net; + NetInfo *i1_net = ci->ports.at(id_I1).net; // Find logic cells connected to both I0 and I1 if (i0_net) { for (auto usr : i0_net->users) { - if (is_lc(ctx, usr.cell) && usr.port == ctx->id("I1")) { + if (is_lc(ctx, usr.cell) && usr.port == id_I1) { if (ctx->cells.find(usr.cell->name) != ctx->cells.end() && exhausted_cells.find(usr.cell->name) == exhausted_cells.end()) { // This clause stops us double-packing cells i0_matches.insert(usr.cell->name); - if (!i1_net && !usr.cell->ports.at(ctx->id("I2")).net) { + if (!i1_net && !usr.cell->ports.at(id_I2).net) { // I1 is don't care when disconnected, duplicate I0 i1_matches.insert(usr.cell->name); } @@ -183,12 +182,12 @@ static void pack_carries(Context *ctx) } if (i1_net) { for (auto usr : i1_net->users) { - if (is_lc(ctx, usr.cell) && usr.port == ctx->id("I2")) { + if (is_lc(ctx, usr.cell) && usr.port == id_I2) { if (ctx->cells.find(usr.cell->name) != ctx->cells.end() && exhausted_cells.find(usr.cell->name) == exhausted_cells.end()) { // This clause stops us double-packing cells i1_matches.insert(usr.cell->name); - if (!i0_net && !usr.cell->ports.at(ctx->id("I1")).net) { + if (!i0_net && !usr.cell->ports.at(id_I1).net) { // I0 is don't care when disconnected, duplicate I1 i0_matches.insert(usr.cell->name); } @@ -208,53 +207,53 @@ static void pack_carries(Context *ctx) } else { // No LC to pack into matching I0/I1, insert a new one std::unique_ptr<CellInfo> created_lc = - create_ice_cell(ctx, ctx->id("ICESTORM_LC"), cell.first.str(ctx) + "$CARRY"); + create_ice_cell(ctx, id_ICESTORM_LC, cell.first.str(ctx) + "$CARRY"); carry_lc = created_lc.get(); - created_lc->ports.at(ctx->id("I1")).net = i0_net; + created_lc->ports.at(id_I1).net = i0_net; if (i0_net) { PortRef pr; pr.cell = created_lc.get(); - pr.port = ctx->id("I1"); + pr.port = id_I1; i0_net->users.push_back(pr); } - created_lc->ports.at(ctx->id("I2")).net = i1_net; + created_lc->ports.at(id_I2).net = i1_net; if (i1_net) { PortRef pr; pr.cell = created_lc.get(); - pr.port = ctx->id("I2"); + pr.port = id_I2; i1_net->users.push_back(pr); } new_cells.push_back(std::move(created_lc)); ++carry_only; } - carry_lc->params[ctx->id("CARRY_ENABLE")] = Property::State::S1; - replace_port(ci, ctx->id("CI"), carry_lc, ctx->id("CIN")); - replace_port(ci, ctx->id("CO"), carry_lc, ctx->id("COUT")); + carry_lc->params[id_CARRY_ENABLE] = Property::State::S1; + replace_port(ci, id_CI, carry_lc, id_CIN); + replace_port(ci, id_CO, carry_lc, id_COUT); if (i0_net) { auto &i0_usrs = i0_net->users; i0_usrs.erase(std::remove_if(i0_usrs.begin(), i0_usrs.end(), [ci, ctx](const PortRef &pr) { - return pr.cell == ci && pr.port == ctx->id("I0"); + return pr.cell == ci && pr.port == id_I0; })); } if (i1_net) { auto &i1_usrs = i1_net->users; i1_usrs.erase(std::remove_if(i1_usrs.begin(), i1_usrs.end(), [ci, ctx](const PortRef &pr) { - return pr.cell == ci && pr.port == ctx->id("I1"); + return pr.cell == ci && pr.port == id_I1; })); } // Check for constant driver on CIN - if (carry_lc->ports.at(ctx->id("CIN")).net != nullptr) { - IdString cin_net = carry_lc->ports.at(ctx->id("CIN")).net->name; + if (carry_lc->ports.at(id_CIN).net != nullptr) { + IdString cin_net = carry_lc->ports.at(id_CIN).net->name; if (cin_net == ctx->id("$PACKER_GND_NET") || cin_net == ctx->id("$PACKER_VCC_NET")) { - carry_lc->params[ctx->id("CIN_CONST")] = Property::State::S1; - carry_lc->params[ctx->id("CIN_SET")] = + carry_lc->params[id_CIN_CONST] = Property::State::S1; + carry_lc->params[id_CIN_SET] = cin_net == ctx->id("$PACKER_VCC_NET") ? Property::State::S1 : Property::State::S0; - carry_lc->ports.at(ctx->id("CIN")).net = nullptr; + carry_lc->ports.at(id_CIN).net = nullptr; auto &cin_users = ctx->nets.at(cin_net)->users; cin_users.erase( std::remove_if(cin_users.begin(), cin_users.end(), [carry_lc, ctx](const PortRef &pr) { - return pr.cell == carry_lc && pr.port == ctx->id("CIN"); + return pr.cell == carry_lc && pr.port == id_CIN; })); } } @@ -281,18 +280,15 @@ static void pack_ram(Context *ctx) for (auto &cell : ctx->cells) { CellInfo *ci = cell.second.get(); if (is_ram(ctx, ci)) { - std::unique_ptr<CellInfo> packed = - create_ice_cell(ctx, ctx->id("ICESTORM_RAM"), ci->name.str(ctx) + "_RAM"); + std::unique_ptr<CellInfo> packed = create_ice_cell(ctx, id_ICESTORM_RAM, ci->name.str(ctx) + "_RAM"); packed_cells.insert(ci->name); for (auto attr : ci->attrs) packed->attrs[attr.first] = attr.second; for (auto param : ci->params) packed->params[param.first] = param.second; - packed->params[ctx->id("NEG_CLK_W")] = - Property(ci->type == ctx->id("SB_RAM40_4KNW") || ci->type == ctx->id("SB_RAM40_4KNRNW"), 1); - packed->params[ctx->id("NEG_CLK_R")] = - Property(ci->type == ctx->id("SB_RAM40_4KNR") || ci->type == ctx->id("SB_RAM40_4KNRNW"), 1); - packed->type = ctx->id("ICESTORM_RAM"); + packed->params[id_NEG_CLK_W] = Property(ci->type == id_SB_RAM40_4KNW || ci->type == id_SB_RAM40_4KNRNW, 1); + packed->params[id_NEG_CLK_R] = Property(ci->type == id_SB_RAM40_4KNR || ci->type == id_SB_RAM40_4KNRNW, 1); + packed->type = id_ICESTORM_RAM; for (auto port : ci->ports) { PortInfo &pi = port.second; std::string newname = pi.name.str(ctx); @@ -300,9 +296,9 @@ static void pack_ram(Context *ctx) if (bpos != std::string::npos) { newname = newname.substr(0, bpos) + "_" + newname.substr(bpos + 1, (newname.size() - bpos) - 2); } - if (pi.name == ctx->id("RCLKN")) + if (pi.name == id_RCLKN) newname = "RCLK"; - else if (pi.name == ctx->id("WCLKN")) + else if (pi.name == id_WCLKN) newname = "WCLK"; replace_port(ci, ctx->id(pi.name.c_str(ctx)), packed.get(), ctx->id(newname)); } @@ -330,13 +326,13 @@ static void set_net_constant(const Context *ctx, NetInfo *orig, NetInfo *constne if ((is_lut(ctx, uc) || is_lc(ctx, uc) || is_carry(ctx, uc)) && (user.port.str(ctx).at(0) == 'I') && !constval) { uc->ports[user.port].net = nullptr; - } else if ((is_sb_mac16(ctx, uc) || uc->type == ctx->id("ICESTORM_DSP")) && - (user.port != ctx->id("CLK") && - ((constval && user.port == ctx->id("CE")) || (!constval && user.port != ctx->id("CE"))))) { + } else if ((is_sb_mac16(ctx, uc) || uc->type == id_ICESTORM_DSP) && + (user.port != id_CLK && + ((constval && user.port == id_CE) || (!constval && user.port != id_CE)))) { uc->ports[user.port].net = nullptr; - } else if (is_ram(ctx, uc) && !constval && user.port != ctx->id("RCLK") && user.port != ctx->id("RCLKN") && - user.port != ctx->id("WCLK") && user.port != ctx->id("WCLKN") && user.port != ctx->id("RCLKE") && - user.port != ctx->id("WCLKE")) { + } else if (is_ram(ctx, uc) && !constval && user.port != id_RCLK && user.port != id_RCLKN && + user.port != id_WCLK && user.port != id_WCLKN && user.port != id_RCLKE && + user.port != id_WCLKE) { uc->ports[user.port].net = nullptr; } else { uc->ports[user.port].net = constnet; @@ -352,24 +348,24 @@ static void pack_constants(Context *ctx) { log_info("Packing constants..\n"); - std::unique_ptr<CellInfo> gnd_cell = create_ice_cell(ctx, ctx->id("ICESTORM_LC"), "$PACKER_GND"); - gnd_cell->params[ctx->id("LUT_INIT")] = Property(0, 16); + std::unique_ptr<CellInfo> gnd_cell = create_ice_cell(ctx, id_ICESTORM_LC, "$PACKER_GND"); + gnd_cell->params[id_LUT_INIT] = Property(0, 16); auto gnd_net = std::make_unique<NetInfo>(ctx->id("$PACKER_GND_NET")); gnd_net->driver.cell = gnd_cell.get(); - gnd_net->driver.port = ctx->id("O"); - gnd_cell->ports.at(ctx->id("O")).net = gnd_net.get(); + gnd_net->driver.port = id_O; + gnd_cell->ports.at(id_O).net = gnd_net.get(); NetInfo *gnd_net_info = gnd_net.get(); if (ctx->nets.find(ctx->id("$PACKER_GND_NET")) != ctx->nets.end()) { gnd_net_info = ctx->nets.find(ctx->id("$PACKER_GND_NET"))->second.get(); } - std::unique_ptr<CellInfo> vcc_cell = create_ice_cell(ctx, ctx->id("ICESTORM_LC"), "$PACKER_VCC"); - vcc_cell->params[ctx->id("LUT_INIT")] = Property(1, 16); + std::unique_ptr<CellInfo> vcc_cell = create_ice_cell(ctx, id_ICESTORM_LC, "$PACKER_VCC"); + vcc_cell->params[id_LUT_INIT] = Property(1, 16); auto vcc_net = std::make_unique<NetInfo>(ctx->id("$PACKER_VCC_NET")); vcc_net->driver.cell = vcc_cell.get(); - vcc_net->driver.port = ctx->id("O"); - vcc_cell->ports.at(ctx->id("O")).net = vcc_net.get(); + vcc_net->driver.port = id_O; + vcc_cell->ports.at(id_O).net = vcc_net.get(); NetInfo *vcc_net_info = vcc_net.get(); if (ctx->nets.find(ctx->id("$PACKER_VCC_NET")) != ctx->nets.end()) { @@ -382,13 +378,13 @@ static void pack_constants(Context *ctx) for (auto &net : ctx->nets) { NetInfo *ni = net.second.get(); - if (ni->driver.cell != nullptr && ni->driver.cell->type == ctx->id("GND")) { + if (ni->driver.cell != nullptr && ni->driver.cell->type == id_GND) { IdString drv_cell = ni->driver.cell->name; set_net_constant(ctx, ni, gnd_net_info, false); gnd_used = true; dead_nets.push_back(net.first); ctx->cells.erase(drv_cell); - } else if (ni->driver.cell != nullptr && ni->driver.cell->type == ctx->id("VCC")) { + } else if (ni->driver.cell != nullptr && ni->driver.cell->type == id_VCC) { IdString drv_cell = ni->driver.cell->name; set_net_constant(ctx, ni, vcc_net_info, true); dead_nets.push_back(net.first); @@ -434,16 +430,16 @@ static std::unique_ptr<CellInfo> create_padin_gbuf(Context *ctx, CellInfo *cell, std::string gbuf_name) { // Find the matching SB_GB BEL connected to the same global network - if (!cell->attrs.count(ctx->id("BEL"))) + if (!cell->attrs.count(id_BEL)) log_error("Unconstrained SB_GB_IO %s is not supported.\n", ctx->nameOf(cell)); - BelId bel = ctx->getBelByNameStr(cell->attrs[ctx->id("BEL")].as_string()); + BelId bel = ctx->getBelByNameStr(cell->attrs[id_BEL].as_string()); BelId gb_bel = find_padin_gbuf(ctx, bel, port_name); NPNR_ASSERT(gb_bel != BelId()); // Create a SB_GB Cell and lock it there - std::unique_ptr<CellInfo> gb = create_ice_cell(ctx, ctx->id("SB_GB"), gbuf_name); - gb->attrs[ctx->id("FOR_PAD_IN")] = Property::State::S1; - gb->attrs[ctx->id("BEL")] = ctx->getBelName(gb_bel).str(ctx); + std::unique_ptr<CellInfo> gb = create_ice_cell(ctx, id_SB_GB, gbuf_name); + gb->attrs[id_FOR_PAD_IN] = Property::State::S1; + gb->attrs[id_BEL] = ctx->getBelName(gb_bel).str(ctx); // Reconnect the net to that port for easier identification it's a global net replace_port(cell, port_name, gb.get(), id_GLOBAL_BUFFER_OUTPUT); @@ -475,11 +471,11 @@ static void pack_io(Context *ctx) if (is_nextpnr_iob(ctx, ci)) { CellInfo *sb = nullptr, *rgb = nullptr; if (ci->type == ctx->id("$nextpnr_ibuf") || ci->type == ctx->id("$nextpnr_iobuf")) { - sb = net_only_drives(ctx, ci->ports.at(ctx->id("O")).net, is_ice_iob, ctx->id("PACKAGE_PIN"), true, ci); + sb = net_only_drives(ctx, ci->ports.at(id_O).net, is_ice_iob, id_PACKAGE_PIN, true, ci); } else if (ci->type == ctx->id("$nextpnr_obuf")) { - NetInfo *net = ci->ports.at(ctx->id("I")).net; - sb = net_only_drives(ctx, net, is_ice_iob, ctx->id("PACKAGE_PIN"), true, ci); + NetInfo *net = ci->ports.at(id_I).net; + sb = net_only_drives(ctx, net, is_ice_iob, id_PACKAGE_PIN, true, ci); if (net && net->driver.cell && (is_sb_rgba_drv(ctx, net->driver.cell) || is_sb_rgb_drv(ctx, net->driver.cell))) rgb = net->driver.cell; @@ -488,7 +484,7 @@ static void pack_io(Context *ctx) // Trivial case, SB_IO used. Just destroy the iobuf log_info("%s feeds SB_IO %s, removing %s %s.\n", ci->name.c_str(ctx), sb->name.c_str(ctx), ci->type.c_str(ctx), ci->name.c_str(ctx)); - NetInfo *net = sb->ports.at(ctx->id("PACKAGE_PIN")).net; + NetInfo *net = sb->ports.at(id_PACKAGE_PIN).net; if (((ci->type == ctx->id("$nextpnr_ibuf") || ci->type == ctx->id("$nextpnr_iobuf")) && net->users.size() > 1) || (ci->type == ctx->id("$nextpnr_obuf") && (net->users.size() > 2 || net->driver.cell != nullptr))) @@ -518,13 +514,12 @@ static void pack_io(Context *ctx) } else if (rgb != nullptr) { log_info("%s use by SB_RGBA_DRV/SB_RGB_DRV %s, not creating SB_IO\n", ci->name.c_str(ctx), rgb->name.c_str(ctx)); - disconnect_port(ctx, ci, ctx->id("I")); + disconnect_port(ctx, ci, id_I); packed_cells.insert(ci->name); continue; } else { // Create a SB_IO buffer - std::unique_ptr<CellInfo> ice_cell = - create_ice_cell(ctx, ctx->id("SB_IO"), ci->name.str(ctx) + "$sb_io"); + std::unique_ptr<CellInfo> ice_cell = create_ice_cell(ctx, id_SB_IO, ci->name.str(ctx) + "$sb_io"); nxio_to_sb(ctx, ci, ice_cell.get(), packed_cells); new_cells.push_back(std::move(ice_cell)); sb = new_cells.back().get(); @@ -535,7 +530,7 @@ static void pack_io(Context *ctx) for (auto &attr : ci->attrs) sb->attrs[attr.first] = attr.second; } else if (is_sb_io(ctx, ci) || is_sb_gb_io(ctx, ci)) { - NetInfo *net = ci->ports.at(ctx->id("PACKAGE_PIN")).net; + NetInfo *net = ci->ports.at(id_PACKAGE_PIN).net; if ((net != nullptr) && ((net->users.size() > 2) || (net->driver.cell != nullptr && net->driver.cell->type == ctx->id("$nextpnr_obuf") && net->users.size() > 1))) @@ -552,8 +547,8 @@ static void pack_io(Context *ctx) new_cells.push_back(std::move(gb)); // Make it a normal SB_IO with global marker - ci->type = ctx->id("SB_IO"); - ci->attrs[ctx->id("GLOBAL")] = Property::State::S1; + ci->type = id_SB_IO; + ci->attrs[id_GLOBAL] = Property::State::S1; } else if (is_sb_io(ctx, ci)) { // Disconnect unused inputs NetInfo *net_in0 = ci->ports.count(id_D_IN_0) ? ci->ports[id_D_IN_0].net : nullptr; @@ -595,18 +590,18 @@ static void insert_global(Context *ctx, NetInfo *net, bool is_reset, bool is_cen is_cen ? " [cen]" : "", is_logic ? " [logic]" : "", fanout); std::string glb_name = net->name.str(ctx) + std::string("_$glb_") + (is_reset ? "sr" : (is_cen ? "ce" : "clk")); - std::unique_ptr<CellInfo> gb = create_ice_cell(ctx, ctx->id("SB_GB"), "$gbuf_" + glb_name); - gb->ports[ctx->id("USER_SIGNAL_TO_GLOBAL_BUFFER")].net = net; + std::unique_ptr<CellInfo> gb = create_ice_cell(ctx, id_SB_GB, "$gbuf_" + glb_name); + gb->ports[id_USER_SIGNAL_TO_GLOBAL_BUFFER].net = net; PortRef pr; pr.cell = gb.get(); - pr.port = ctx->id("USER_SIGNAL_TO_GLOBAL_BUFFER"); + pr.port = id_USER_SIGNAL_TO_GLOBAL_BUFFER; net->users.push_back(pr); pr.cell = gb.get(); - pr.port = ctx->id("GLOBAL_BUFFER_OUTPUT"); + pr.port = id_GLOBAL_BUFFER_OUTPUT; NetInfo *glbnet = ctx->createNet(ctx->id(glb_name)); glbnet->driver = pr; - gb->ports[ctx->id("GLOBAL_BUFFER_OUTPUT")].net = glbnet; + gb->ports[id_GLOBAL_BUFFER_OUTPUT].net = glbnet; std::vector<PortRef> keep_users; for (auto user : net->users) { if (is_clock_port(ctx, user) || (is_reset && is_reset_port(ctx, user)) || @@ -664,9 +659,9 @@ static void promote_globals(Context *ctx) --gbs_available; /* And possibly limits what we can promote */ - if (cell.second->attrs.find(ctx->id("BEL")) != cell.second->attrs.end()) { + if (cell.second->attrs.find(id_BEL) != cell.second->attrs.end()) { /* If the SB_GB is locked, doesn't matter what it drives */ - BelId bel = ctx->getBelByNameStr(cell.second->attrs[ctx->id("BEL")].as_string()); + BelId bel = ctx->getBelByNameStr(cell.second->attrs[id_BEL].as_string()); int glb_id = ctx->get_driven_glb_netwk(bel); if ((glb_id % 2) == 0) resets_available--; @@ -708,7 +703,7 @@ static void promote_globals(Context *ctx) if (global_clock->second == 0 && prom_logics < 4 && global_logic->second > logic_fanout_thresh && (global_logic->second > global_cen->second || prom_cens >= cens_available) && (global_logic->second > global_reset->second || prom_resets >= resets_available) && - bool_or_default(ctx->settings, ctx->id("promote_logic"), false)) { + bool_or_default(ctx->settings, id_promote_logic, false)) { NetInfo *logicnet = ctx->nets[global_logic->first].get(); insert_global(ctx, logicnet, false, false, true, global_logic->second); ++prom_globals; @@ -784,11 +779,11 @@ static void place_plls(Context *ctx) continue; // If it's constrained already, add to already used list - if (ci->attrs.count(ctx->id("BEL"))) { - BelId bel_constrain = ctx->getBelByNameStr(ci->attrs[ctx->id("BEL")].as_string()); + if (ci->attrs.count(id_BEL)) { + BelId bel_constrain = ctx->getBelByNameStr(ci->attrs[id_BEL].as_string()); if (pll_all_bels.count(bel_constrain) == 0) log_error("PLL '%s' is constrained to invalid BEL '%s'\n", ci->name.c_str(ctx), - ci->attrs[ctx->id("BEL")].as_string().c_str()); + ci->attrs[id_BEL].as_string().c_str()); pll_used_bels[bel_constrain] = ci; } @@ -802,10 +797,10 @@ static void place_plls(Context *ctx) continue; // Check PACKAGEPIN connection - if (!ci->ports.count(ctx->id("PACKAGEPIN"))) + if (!ci->ports.count(id_PACKAGEPIN)) log_error("PLL '%s' is of PAD type but doesn't have a PACKAGEPIN port\n", ci->name.c_str(ctx)); - NetInfo *ni = ci->ports.at(ctx->id("PACKAGEPIN")).net; + NetInfo *ni = ci->ports.at(id_PACKAGEPIN).net; if (ni == nullptr || ni->driver.cell == nullptr) log_error("PLL '%s' is of PAD type but doesn't have a valid PACKAGEPIN connection\n", ci->name.c_str(ctx)); @@ -816,11 +811,11 @@ static void place_plls(Context *ctx) ci->name.c_str(ctx), io_cell->type.c_str(ctx)); if (ni->users.size() != 1) log_error("PLL '%s' clock input '%s' can only drive PLL\n", ci->name.c_str(ctx), ni->name.c_str(ctx)); - if (!io_cell->attrs.count(ctx->id("BEL"))) + if (!io_cell->attrs.count(id_BEL)) log_error("PLL '%s' PACKAGEPIN SB_IO '%s' is unconstrained\n", ci->name.c_str(ctx), io_cell->name.c_str(ctx)); - BelId io_bel = ctx->getBelByNameStr(io_cell->attrs.at(ctx->id("BEL")).as_string()); + BelId io_bel = ctx->getBelByNameStr(io_cell->attrs.at(id_BEL).as_string()); BelId found_bel; // Find the PLL BEL that would suit that connection @@ -843,16 +838,16 @@ static void place_plls(Context *ctx) } // Is it user constrained ? - if (ci->attrs.count(ctx->id("BEL"))) { + if (ci->attrs.count(id_BEL)) { // Yes. Check it actually matches ! - BelId bel_constrain = ctx->getBelByNameStr(ci->attrs[ctx->id("BEL")].as_string()); + BelId bel_constrain = ctx->getBelByNameStr(ci->attrs[id_BEL].as_string()); if (bel_constrain != found_bel) log_error("PLL '%s' is user constrained to %s but can only be placed in %s based on its PACKAGEPIN " "connection\n", ci->name.c_str(ctx), ctx->nameOfBel(bel_constrain), ctx->nameOfBel(found_bel)); } else { // No, we can constrain it ourselves - ci->attrs[ctx->id("BEL")] = ctx->getBelName(found_bel).str(ctx); + ci->attrs[id_BEL] = ctx->getBelName(found_bel).str(ctx); pll_used_bels[found_bel] = ci; } @@ -867,15 +862,15 @@ static void place_plls(Context *ctx) continue; // Only consider bound IO that are used as inputs - if (!io_ci->attrs.count(ctx->id("BEL"))) + if (!io_ci->attrs.count(id_BEL)) continue; if ((!io_ci->ports.count(id_D_IN_0) || (io_ci->ports[id_D_IN_0].net == nullptr)) && (!io_ci->ports.count(id_D_IN_1) || (io_ci->ports[id_D_IN_1].net == nullptr)) && - !bool_or_default(io_ci->attrs, ctx->id("GLOBAL"))) + !bool_or_default(io_ci->attrs, id_GLOBAL)) continue; // Check all placed PLL (either forced by user, or forced by PACKAGEPIN) - BelId io_bel = ctx->getBelByNameStr(io_ci->attrs[ctx->id("BEL")].as_string()); + BelId io_bel = ctx->getBelByNameStr(io_ci->attrs[id_BEL].as_string()); for (auto placed_pll : pll_used_bels) { BelPin pll_io_a, pll_io_b; @@ -905,11 +900,11 @@ static void place_plls(Context *ctx) continue; // Only consider the bound ones - if (!gb_ci->attrs.count(ctx->id("BEL"))) + if (!gb_ci->attrs.count(id_BEL)) continue; // Check all placed PLL (either forced by user, or forced by PACKAGEPIN) - BelId gb_bel = ctx->getBelByNameStr(gb_ci->attrs[ctx->id("BEL")].as_string()); + BelId gb_bel = ctx->getBelByNameStr(gb_ci->attrs[id_BEL].as_string()); for (auto placed_pll : pll_used_bels) { CellInfo *ci = placed_pll.second; @@ -967,8 +962,8 @@ static void place_plls(Context *ctx) // Could this be a PAD PLL ? bool could_be_pad = false; BelId pad_bel; - if (ni->users.size() == 1 && is_sb_io(ctx, ni->driver.cell) && ni->driver.cell->attrs.count(ctx->id("BEL"))) - pad_bel = ctx->getBelByNameStr(ni->driver.cell->attrs[ctx->id("BEL")].as_string()); + if (ni->users.size() == 1 && is_sb_io(ctx, ni->driver.cell) && ni->driver.cell->attrs.count(id_BEL)) + pad_bel = ctx->getBelByNameStr(ni->driver.cell->attrs[id_BEL].as_string()); // Find a BEL for it BelId found_bel; @@ -1002,7 +997,7 @@ static void place_plls(Context *ctx) if (could_be_pad) log_info(" (given its connections, this PLL could have been a PAD PLL)\n"); - ci->attrs[ctx->id("BEL")] = ctx->getBelName(found_bel).str(ctx); + ci->attrs[id_BEL] = ctx->getBelName(found_bel).str(ctx); pll_used_bels[found_bel] = ci; } } @@ -1017,20 +1012,20 @@ static std::unique_ptr<CellInfo> spliceLUT(Context *ctx, CellInfo *ci, IdString NPNR_ASSERT(port.net != nullptr); // Create pass-through LUT. - std::unique_ptr<CellInfo> pt = create_ice_cell(ctx, ctx->id("ICESTORM_LC"), - ci->name.str(ctx) + "$nextpnr_" + portId.str(ctx) + "_lut_through"); - pt->params[ctx->id("LUT_INIT")] = Property(65280, 16); // output is always I3 + std::unique_ptr<CellInfo> pt = + create_ice_cell(ctx, id_ICESTORM_LC, ci->name.str(ctx) + "$nextpnr_" + portId.str(ctx) + "_lut_through"); + pt->params[id_LUT_INIT] = Property(65280, 16); // output is always I3 // Create LUT output net. NetInfo *out_net = ctx->createNet(ctx->id(ci->name.str(ctx) + "$nextnr_" + portId.str(ctx) + "_lut_through_net")); out_net->driver.cell = pt.get(); - out_net->driver.port = ctx->id("O"); - pt->ports.at(ctx->id("O")).net = out_net; + out_net->driver.port = id_O; + pt->ports.at(id_O).net = out_net; // New users of the original cell's port std::vector<PortRef> new_users; for (const auto &user : port.net->users) { - if (onlyNonLUTs && user.cell->type == ctx->id("ICESTORM_LC")) { + if (onlyNonLUTs && user.cell->type == id_ICESTORM_LC) { new_users.push_back(user); continue; } @@ -1046,9 +1041,9 @@ static std::unique_ptr<CellInfo> spliceLUT(Context *ctx, CellInfo *ci, IdString // Add LUT to new users. PortRef pr; pr.cell = pt.get(); - pr.port = ctx->id("I3"); + pr.port = id_I3; new_users.push_back(pr); - pt->ports.at(ctx->id("I3")).net = port.net; + pt->ports.at(id_I3).net = port.net; // Replace users of the original net. port.net->users = new_users; @@ -1065,7 +1060,7 @@ static BelId cell_place_unique(Context *ctx, CellInfo *ci) if (ctx->is_bel_locked(bel)) continue; IdStringList bel_name = ctx->getBelName(bel); - ci->attrs[ctx->id("BEL")] = bel_name.str(ctx); + ci->attrs[id_BEL] = bel_name.str(ctx); log_info(" constrained %s '%s' to %s\n", ci->type.c_str(ctx), ci->name.c_str(ctx), ctx->nameOfBel(bel)); return bel; } @@ -1124,7 +1119,7 @@ static void pack_special(Context *ctx) /* Force placement (no choices anyway) */ cell_place_unique(ctx, ci); - NetInfo *ledpu_net = ci->ports.at(ctx->id("LEDPU")).net; + NetInfo *ledpu_net = ci->ports.at(id_LEDPU).net; for (auto &user : ledpu_net->users) { if (!is_sb_rgb_drv(ctx, user.cell)) { log_error("SB_LED_DRV_CUR LEDPU port can only be connected to SB_RGB_DRV!\n"); @@ -1133,44 +1128,42 @@ static void pack_special(Context *ctx) user.cell->ports.at(user.port).net = nullptr; } } - ci->ports.erase(ctx->id("LEDPU")); + ci->ports.erase(id_LEDPU); ctx->nets.erase(ledpu_net->name); } } for (auto &cell : ctx->cells) { CellInfo *ci = cell.second.get(); if (is_sb_lfosc(ctx, ci)) { - std::unique_ptr<CellInfo> packed = - create_ice_cell(ctx, ctx->id("ICESTORM_LFOSC"), ci->name.str(ctx) + "_OSC"); + std::unique_ptr<CellInfo> packed = create_ice_cell(ctx, id_ICESTORM_LFOSC, ci->name.str(ctx) + "_OSC"); packed_cells.insert(ci->name); cell_place_unique(ctx, packed.get()); - replace_port(ci, ctx->id("CLKLFEN"), packed.get(), ctx->id("CLKLFEN")); - replace_port(ci, ctx->id("CLKLFPU"), packed.get(), ctx->id("CLKLFPU")); - if (bool_or_default(ci->attrs, ctx->id("ROUTE_THROUGH_FABRIC"))) { - replace_port(ci, ctx->id("CLKLF"), packed.get(), ctx->id("CLKLF_FABRIC")); - set_period(ctx, packed.get(), ctx->id("CLKLF_FABRIC"), 100000000); // 10kHz + replace_port(ci, id_CLKLFEN, packed.get(), id_CLKLFEN); + replace_port(ci, id_CLKLFPU, packed.get(), id_CLKLFPU); + if (bool_or_default(ci->attrs, id_ROUTE_THROUGH_FABRIC)) { + replace_port(ci, id_CLKLF, packed.get(), id_CLKLF_FABRIC); + set_period(ctx, packed.get(), id_CLKLF_FABRIC, 100000000); // 10kHz } else { - replace_port(ci, ctx->id("CLKLF"), packed.get(), ctx->id("CLKLF")); + replace_port(ci, id_CLKLF, packed.get(), id_CLKLF); std::unique_ptr<CellInfo> gb = - create_padin_gbuf(ctx, packed.get(), ctx->id("CLKLF"), "$gbuf_" + ci->name.str(ctx) + "_lfosc"); + create_padin_gbuf(ctx, packed.get(), id_CLKLF, "$gbuf_" + ci->name.str(ctx) + "_lfosc"); set_period(ctx, gb.get(), id_GLOBAL_BUFFER_OUTPUT, 100000000); // 10kHz new_cells.push_back(std::move(gb)); } new_cells.push_back(std::move(packed)); } else if (is_sb_hfosc(ctx, ci)) { - std::unique_ptr<CellInfo> packed = - create_ice_cell(ctx, ctx->id("ICESTORM_HFOSC"), ci->name.str(ctx) + "_OSC"); + std::unique_ptr<CellInfo> packed = create_ice_cell(ctx, id_ICESTORM_HFOSC, ci->name.str(ctx) + "_OSC"); packed_cells.insert(ci->name); cell_place_unique(ctx, packed.get()); - packed->params[ctx->id("TRIM_EN")] = str_or_default(ci->params, ctx->id("TRIM_EN"), "0b0"); - packed->params[ctx->id("CLKHF_DIV")] = str_or_default(ci->params, ctx->id("CLKHF_DIV"), "0b00"); - replace_port(ci, ctx->id("CLKHFEN"), packed.get(), ctx->id("CLKHFEN")); - replace_port(ci, ctx->id("CLKHFPU"), packed.get(), ctx->id("CLKHFPU")); + packed->params[id_TRIM_EN] = str_or_default(ci->params, id_TRIM_EN, "0b0"); + packed->params[id_CLKHF_DIV] = str_or_default(ci->params, id_CLKHF_DIV, "0b00"); + replace_port(ci, id_CLKHFEN, packed.get(), id_CLKHFEN); + replace_port(ci, id_CLKHFPU, packed.get(), id_CLKHFPU); for (int i = 0; i < 10; i++) { auto port = ctx->id("TRIM" + std::to_string(i)); replace_port(ci, port, packed.get(), port); } - std::string div = packed->params[ctx->id("CLKHF_DIV")].as_string(); + std::string div = packed->params[id_CLKHF_DIV].as_string(); int frequency; if (div == "0b00") frequency = 48; @@ -1182,20 +1175,19 @@ static void pack_special(Context *ctx) frequency = 6; else log_error("Invalid HFOSC divider value '%s' - expecting 0b00, 0b01, 0b10 or 0b11\n", div.c_str()); - if (bool_or_default(ci->attrs, ctx->id("ROUTE_THROUGH_FABRIC"))) { - replace_port(ci, ctx->id("CLKHF"), packed.get(), ctx->id("CLKHF_FABRIC")); - set_period(ctx, packed.get(), ctx->id("CLKHF_FABRIC"), 1000000 / frequency); + if (bool_or_default(ci->attrs, id_ROUTE_THROUGH_FABRIC)) { + replace_port(ci, id_CLKHF, packed.get(), id_CLKHF_FABRIC); + set_period(ctx, packed.get(), id_CLKHF_FABRIC, 1000000 / frequency); } else { - replace_port(ci, ctx->id("CLKHF"), packed.get(), ctx->id("CLKHF")); + replace_port(ci, id_CLKHF, packed.get(), id_CLKHF); std::unique_ptr<CellInfo> gb = - create_padin_gbuf(ctx, packed.get(), ctx->id("CLKHF"), "$gbuf_" + ci->name.str(ctx) + "_hfosc"); + create_padin_gbuf(ctx, packed.get(), id_CLKHF, "$gbuf_" + ci->name.str(ctx) + "_hfosc"); set_period(ctx, gb.get(), id_GLOBAL_BUFFER_OUTPUT, 1000000 / frequency); new_cells.push_back(std::move(gb)); } new_cells.push_back(std::move(packed)); } else if (is_sb_spram(ctx, ci)) { - std::unique_ptr<CellInfo> packed = - create_ice_cell(ctx, ctx->id("ICESTORM_SPRAM"), ci->name.str(ctx) + "_RAM"); + std::unique_ptr<CellInfo> packed = create_ice_cell(ctx, id_ICESTORM_SPRAM, ci->name.str(ctx) + "_RAM"); packed_cells.insert(ci->name); for (auto attr : ci->attrs) packed->attrs[attr.first] = attr.second; @@ -1210,8 +1202,7 @@ static void pack_special(Context *ctx) } new_cells.push_back(std::move(packed)); } else if (is_sb_mac16(ctx, ci)) { - std::unique_ptr<CellInfo> packed = - create_ice_cell(ctx, ctx->id("ICESTORM_DSP"), ci->name.str(ctx) + "_DSP"); + std::unique_ptr<CellInfo> packed = create_ice_cell(ctx, id_ICESTORM_DSP, ci->name.str(ctx) + "_DSP"); packed_cells.insert(ci->name); for (auto attr : ci->attrs) packed->attrs[attr.first] = attr.second; @@ -1241,7 +1232,7 @@ static void pack_special(Context *ctx) if (net == nullptr) continue; - if ((pi.name != ctx->id("RGB0")) && (pi.name != ctx->id("RGB1")) && (pi.name != ctx->id("RGB2"))) + if ((pi.name != id_RGB0) && (pi.name != id_RGB1) && (pi.name != id_RGB2)) continue; if (net->users.size() > 0) @@ -1253,10 +1244,10 @@ static void pack_special(Context *ctx) if (is_sb_rgb_drv(ctx, ci) && !ci->ledInfo.ledCurConnected) log_error("Port RGBPU of SB_RGB_DRV should be driven by port LEDPU of SB_LED_DRV_CUR!\n"); - ci->ports.erase(ctx->id("RGBPU")); - ci->ports.erase(ctx->id("RGB0")); - ci->ports.erase(ctx->id("RGB1")); - ci->ports.erase(ctx->id("RGB2")); + ci->ports.erase(id_RGBPU); + ci->ports.erase(id_RGB0); + ci->ports.erase(id_RGB1); + ci->ports.erase(id_RGB2); } else if (is_sb_ledda_ip(ctx, ci)) { /* Force placement (no choices anyway) */ cell_place_unique(ctx, ci); @@ -1268,7 +1259,7 @@ static void pack_special(Context *ctx) {std::make_tuple(id_SB_I2C, "0b0011"), Loc(25, 31, 0)}, }; std::string bus_addr74 = - str_or_default(ci->params, ctx->id("BUS_ADDR74"), is_sb_i2c(ctx, ci) ? "0b0001" : "0b0000"); + str_or_default(ci->params, id_BUS_ADDR74, is_sb_i2c(ctx, ci) ? "0b0001" : "0b0000"); if (map_ba74.find(std::make_tuple(ci->type, bus_addr74)) == map_ba74.end()) log_error("Invalid value for BUS_ADDR74 for cell '%s' of type '%s'\n", ci->name.c_str(ctx), ci->type.c_str(ctx)); @@ -1278,7 +1269,7 @@ static void pack_special(Context *ctx) log_error("Unable to find placement for cell '%s' of type '%s'\n", ci->name.c_str(ctx), ci->type.c_str(ctx)); IdStringList bel_name = ctx->getBelName(bel); - ci->attrs[ctx->id("BEL")] = bel_name.str(ctx); + ci->attrs[id_BEL] = bel_name.str(ctx); log_info(" constrained %s '%s' to %s\n", ci->type.c_str(ctx), ci->name.c_str(ctx), ctx->nameOfBel(bel)); } } @@ -1303,15 +1294,14 @@ void pack_plls(Context *ctx) bool is_pad = is_sb_pll40_pad(ctx, ci); bool is_core = !is_pad; - std::unique_ptr<CellInfo> packed = - create_ice_cell(ctx, ctx->id("ICESTORM_PLL"), ci->name.str(ctx) + "_PLL"); - packed->attrs[ctx->id("TYPE")] = ci->type.str(ctx); + std::unique_ptr<CellInfo> packed = create_ice_cell(ctx, id_ICESTORM_PLL, ci->name.str(ctx) + "_PLL"); + packed->attrs[id_TYPE] = ci->type.str(ctx); packed_cells.insert(ci->name); if (!is_sb_pll40_dual(ctx, ci)) { // Remove second output, so a buffer isn't created for it, for these // cell types with only one output - packed->ports.erase(ctx->id("PLLOUT_B")); - packed->ports.erase(ctx->id("PLLOUT_B_GLOBAL")); + packed->ports.erase(id_PLLOUT_B); + packed->ports.erase(id_PLLOUT_B_GLOBAL); } for (auto attr : ci->attrs) packed->attrs[attr.first] = attr.second; @@ -1319,9 +1309,9 @@ void pack_plls(Context *ctx) packed->params[param.first] = param.second; const std::map<IdString, IdString> pos_map_name = { - {ctx->id("PLLOUT_SELECT"), ctx->id("PLLOUT_SELECT_A")}, - {ctx->id("PLLOUT_SELECT_PORTA"), ctx->id("PLLOUT_SELECT_A")}, - {ctx->id("PLLOUT_SELECT_PORTB"), ctx->id("PLLOUT_SELECT_B")}, + {id_PLLOUT_SELECT, id_PLLOUT_SELECT_A}, + {id_PLLOUT_SELECT_PORTA, id_PLLOUT_SELECT_A}, + {id_PLLOUT_SELECT_PORTB, id_PLLOUT_SELECT_B}, }; const std::map<std::string, int> pos_map_val = { {"GENCLK", 0}, @@ -1336,9 +1326,8 @@ void pack_plls(Context *ctx) packed->params[pos_map_name.at(param.first)] = pos_map_val.at(param.second.as_string()); } const std::map<IdString, std::pair<IdString, IdString>> delmodes = { - {ctx->id("DELAY_ADJUSTMENT_MODE_FEEDBACK"), {ctx->id("DELAY_ADJMODE_FB"), ctx->id("FDA_FEEDBACK")}}, - {ctx->id("DELAY_ADJUSTMENT_MODE_RELATIVE"), - {ctx->id("DELAY_ADJMODE_REL"), ctx->id("FDA_RELATIVE")}}, + {id_DELAY_ADJUSTMENT_MODE_FEEDBACK, {id_DELAY_ADJMODE_FB, id_FDA_FEEDBACK}}, + {id_DELAY_ADJUSTMENT_MODE_RELATIVE, {id_DELAY_ADJMODE_REL, id_FDA_RELATIVE}}, }; for (auto delmode : delmodes) { if (ci->params.count(delmode.first)) { @@ -1352,9 +1341,9 @@ void pack_plls(Context *ctx) log_error("Invalid PLL %s selection '%s'\n", delmode.first.c_str(ctx), value.c_str()); } } - auto feedback_path = packed->params[ctx->id("FEEDBACK_PATH")].is_string - ? packed->params[ctx->id("FEEDBACK_PATH")].as_string() - : std::to_string(packed->params[ctx->id("FEEDBACK_PATH")].as_int64()); + auto feedback_path = packed->params[id_FEEDBACK_PATH].is_string + ? packed->params[id_FEEDBACK_PATH].as_string() + : std::to_string(packed->params[id_FEEDBACK_PATH].as_int64()); std::string fbp_value = feedback_path == "DELAY" ? "0" : feedback_path == "SIMPLE" ? "1" : feedback_path == "PHASE_AND_DELAY" ? "2" @@ -1363,8 +1352,8 @@ void pack_plls(Context *ctx) if (!std::all_of(fbp_value.begin(), fbp_value.end(), isdigit)) log_error("PLL '%s' has unsupported FEEDBACK_PATH value '%s'\n", ci->name.c_str(ctx), feedback_path.c_str()); - packed->params[ctx->id("FEEDBACK_PATH")] = Property(std::stoi(fbp_value), 3); - packed->params[ctx->id("PLLTYPE")] = sb_pll40_type(ctx, ci); + packed->params[id_FEEDBACK_PATH] = Property(std::stoi(fbp_value), 3); + packed->params[id_PLLTYPE] = sb_pll40_type(ctx, ci); NetInfo *pad_packagepin_net = nullptr; @@ -1379,16 +1368,16 @@ void pack_plls(Context *ctx) newname = newname.substr(0, bpos) + "_" + newname.substr(bpos + 1, (newname.size() - bpos) - 2); } - if (pi.name == ctx->id("PLLOUTCOREA") || pi.name == ctx->id("PLLOUTCORE")) + if (pi.name == id_PLLOUTCOREA || pi.name == id_PLLOUTCORE) newname = "PLLOUT_A"; - if (pi.name == ctx->id("PLLOUTCOREB")) + if (pi.name == id_PLLOUTCOREB) newname = "PLLOUT_B"; - if (pi.name == ctx->id("PLLOUTGLOBALA") || pi.name == ctx->id("PLLOUTGLOBAL")) + if (pi.name == id_PLLOUTGLOBALA || pi.name == id_PLLOUTGLOBAL) newname = "PLLOUT_A_GLOBAL"; - if (pi.name == ctx->id("PLLOUTGLOBALB")) + if (pi.name == id_PLLOUTGLOBALB) newname = "PLLOUT_B_GLOBAL"; - if (pi.name == ctx->id("PACKAGEPIN")) { + if (pi.name == id_PACKAGEPIN) { if (!is_pad) { log_error("PLL '%s' has a PACKAGEPIN but is not a PAD PLL\n", ci->name.c_str(ctx)); } else { @@ -1399,7 +1388,7 @@ void pack_plls(Context *ctx) continue; } } - if (pi.name == ctx->id("REFERENCECLK")) { + if (pi.name == id_REFERENCECLK) { if (!is_core) log_error("PLL '%s' has a REFERENCECLK but is not a CORE PLL\n", ci->name.c_str(ctx)); got_input_constr = get_period(ctx, ci, pi.name, input_constr); @@ -1429,7 +1418,7 @@ void pack_plls(Context *ctx) log_info(" Input frequency of PLL '%s' is constrained to %.1f MHz\n", ctx->nameOf(ci), MHz(ctx, input_constr)); // Input divider (DIVR) - input_constr *= (int_or_default(packed->params, ctx->id("DIVR"), 0) + 1); + input_constr *= (int_or_default(packed->params, id_DIVR, 0) + 1); delay_t vco_constr = 0; delay_t outa_constr = 0, outb_constr = 0; int sr_div = 4; @@ -1452,7 +1441,7 @@ void pack_plls(Context *ctx) }; // Lookup shiftreg divider - int sr_div_mode = int_or_default(packed->params, ctx->id("SHIFTREG_DIV_MODE"), 0); + int sr_div_mode = int_or_default(packed->params, id_SHIFTREG_DIV_MODE, 0); switch (sr_div_mode) { case 0: sr_div = 4; @@ -1470,8 +1459,8 @@ void pack_plls(Context *ctx) } } // Determine dividers in VCO path - vco_constr = input_constr / (int_or_default(packed->params, ctx->id("DIVF"), 0) + 1); - divq = 1 << (int_or_default(packed->params, ctx->id("DIVQ"), 0)); + vco_constr = input_constr / (int_or_default(packed->params, id_DIVF, 0) + 1); + divq = 1 << (int_or_default(packed->params, id_DIVQ, 0)); if (fbp_value != "1") // anything other than SIMPLE - feedback after DIVQ vco_constr /= divq; if (fbp_value == "6") { // EXTERNAL @@ -1484,19 +1473,19 @@ void pack_plls(Context *ctx) } log_info(" VCO frequency of PLL '%s' is constrained to %.1f MHz\n", ctx->nameOf(ci), MHz(ctx, vco_constr)); - if (ci->type == ctx->id("SB_PLL40_2_PAD")) + if (ci->type == id_SB_PLL40_2_PAD) outa_constr = input_constr; // 2_PAD variant passes through input to OUTPUT A else - outa_constr = process_output(ctx->id("PLLOUT_SELECT_A")); - outb_constr = process_output(ctx->id("PLLOUT_SELECT_B")); - set_period(ctx, packed.get(), ctx->id("PLLOUT_A"), outa_constr); - set_period(ctx, packed.get(), ctx->id("PLLOUT_A_GLOBAL"), outa_constr); - set_period(ctx, packed.get(), ctx->id("PLLOUT_B"), outb_constr); - set_period(ctx, packed.get(), ctx->id("PLLOUT_B_GLOBAL"), outb_constr); + outa_constr = process_output(id_PLLOUT_SELECT_A); + outb_constr = process_output(id_PLLOUT_SELECT_B); + set_period(ctx, packed.get(), id_PLLOUT_A, outa_constr); + set_period(ctx, packed.get(), id_PLLOUT_A_GLOBAL, outa_constr); + set_period(ctx, packed.get(), id_PLLOUT_B, outb_constr); + set_period(ctx, packed.get(), id_PLLOUT_B_GLOBAL, outb_constr); } constr_fail: // PLL must have been placed already in place_plls() - BelId pll_bel = ctx->getBelByNameStr(packed->attrs[ctx->id("BEL")].as_string()); + BelId pll_bel = ctx->getBelByNameStr(packed->attrs[id_BEL].as_string()); NPNR_ASSERT(pll_bel != BelId()); // Deal with PAD PLL peculiarities @@ -1505,10 +1494,10 @@ void pack_plls(Context *ctx) auto pll_packagepin_driver = pad_packagepin_net->driver; NPNR_ASSERT(pll_packagepin_driver.cell != nullptr); auto packagepin_cell = pll_packagepin_driver.cell; - auto packagepin_bel_name = packagepin_cell->attrs.find(ctx->id("BEL")); + auto packagepin_bel_name = packagepin_cell->attrs.find(id_BEL); // Set an attribute about this PLL's PAD SB_IO. - packed->attrs[ctx->id("BEL_PAD_INPUT")] = packagepin_bel_name->second; + packed->attrs[id_BEL_PAD_INPUT] = packagepin_bel_name->second; // Disconnect PACKAGEPIN (it's a physical HW link) for (auto user : pad_packagepin_net->users) @@ -1522,7 +1511,7 @@ void pack_plls(Context *ctx) // In practice, this means the LOCK signal can only directly reach LUT // inputs. // If we have a net connected to LOCK, make sure it only drives LUTs. - auto port = packed->ports[ctx->id("LOCK")]; + auto port = packed->ports[id_LOCK]; if (port.net != nullptr) { log_info(" PLL '%s' has LOCK output, need to pass all outputs via LUT\n", ci->name.c_str(ctx)); bool found_lut = false; @@ -1531,8 +1520,8 @@ void pack_plls(Context *ctx) unsigned int lut_count = 0; for (const auto &user : port.net->users) { NPNR_ASSERT(user.cell != nullptr); - if (user.cell->type == ctx->id("ICESTORM_LC")) { - if (bool_or_default(user.cell->params, ctx->id("CARRY_ENABLE"), false)) { + if (user.cell->type == id_ICESTORM_LC) { + if (bool_or_default(user.cell->params, id_CARRY_ENABLE, false)) { found_carry = true; all_luts = false; } else { @@ -1569,14 +1558,14 @@ void pack_plls(Context *ctx) int z = 0; for (const auto &user : port.net->users) { NPNR_ASSERT(user.cell != nullptr); - NPNR_ASSERT(user.cell->type == ctx->id("ICESTORM_LC")); + NPNR_ASSERT(user.cell->type == id_ICESTORM_LC); // TODO(q3k): handle when the Bel might be already the // target of another constraint. NPNR_ASSERT(z < 8); auto target_bel = ctx->getBelByLocation(Loc(x, y, z++)); auto target_bel_name = ctx->getBelName(target_bel).str(ctx); - user.cell->attrs[ctx->id("BEL")] = target_bel_name; + user.cell->attrs[id_BEL] = target_bel_name; log_info(" constrained '%s' to %s\n", user.cell->name.c_str(ctx), target_bel_name.c_str()); } } @@ -1586,9 +1575,9 @@ void pack_plls(Context *ctx) PortInfo &pi = port.second; bool is_b_port; - if (pi.name == ctx->id("PLLOUT_A_GLOBAL")) + if (pi.name == id_PLLOUT_A_GLOBAL) is_b_port = false; - else if (pi.name == ctx->id("PLLOUT_B_GLOBAL")) + else if (pi.name == id_PLLOUT_B_GLOBAL) is_b_port = true; else continue; @@ -1635,13 +1624,13 @@ bool Arch::pack() place_plls(ctx); pack_special(ctx); pack_plls(ctx); - if (!bool_or_default(ctx->settings, ctx->id("no_promote_globals"), false)) + if (!bool_or_default(ctx->settings, id_no_promote_globals, false)) promote_globals(ctx); ctx->assignArchInfo(); constrain_chains(ctx); ctx->fixupHierarchy(); ctx->assignArchInfo(); - ctx->settings[ctx->id("pack")] = 1; + ctx->settings[id_pack] = 1; archInfoToAttributes(); log_info("Checksum: 0x%08x\n", ctx->checksum()); return true; |