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-rw-r--r--ecp5/arch.cc161
1 files changed, 138 insertions, 23 deletions
diff --git a/ecp5/arch.cc b/ecp5/arch.cc
index 23cdea3b..da0f7b1a 100644
--- a/ecp5/arch.cc
+++ b/ecp5/arch.cc
@@ -427,44 +427,90 @@ BelId Arch::getBelByLocation(Loc loc) const
delay_t Arch::estimateDelay(WireId src, WireId dst) const
{
- auto est_location = [&](WireId w) -> std::pair<int16_t, int16_t> {
- if (w.location.x == 0 && w.location.y == 0) {
- // Global wires
- const auto &wire = locInfo(w)->wire_data[w.index];
- // Use location of first downhill bel or pip, if available
- if (wire.num_bel_pins > 0) {
- return std::make_pair(wire.bel_pins[0].rel_bel_loc.x, wire.bel_pins[0].rel_bel_loc.y);
- } else if (wire.num_downhill > 0) {
- return std::make_pair(wire.pips_downhill[0].rel_loc.x, wire.pips_downhill[0].rel_loc.y);
- } else if (wire.num_uphill > 0) {
- return std::make_pair(wire.pips_uphill[0].rel_loc.x, wire.pips_uphill[0].rel_loc.y);
- } else {
- return std::make_pair<int16_t, int16_t>(0, 0);
- }
+ WireId cursor = dst;
+
+ int num_uh = locInfo(dst)->wire_data[dst.index].num_uphill;
+ if (num_uh < 6) {
+ for (auto uh : getPipsUphill(dst)) {
+ if (getPipSrcWire(uh) == src)
+ return getPipDelay(uh).maxDelay();
+ }
+ }
+
+ auto est_location = [&](WireId w) -> std::pair<int, int> {
+ const auto &wire = locInfo(w)->wire_data[w.index];
+ if (wire.num_bel_pins > 0) {
+ return std::make_pair(w.location.x + wire.bel_pins[0].rel_bel_loc.x,
+ w.location.y + wire.bel_pins[0].rel_bel_loc.y);
+ } else if (wire.num_downhill > 0) {
+ return std::make_pair(w.location.x + wire.pips_downhill[0].rel_loc.x,
+ w.location.y + wire.pips_downhill[0].rel_loc.y);
+ } else if (wire.num_uphill > 0) {
+ return std::make_pair(w.location.x + wire.pips_uphill[0].rel_loc.x,
+ w.location.y + wire.pips_uphill[0].rel_loc.y);
} else {
- return std::make_pair(w.location.x, w.location.y);
+ return std::make_pair(int(w.location.x), int(w.location.y));
}
};
auto src_loc = est_location(src), dst_loc = est_location(dst);
- return (240 - 20 * args.speed) * (abs(src_loc.first - dst_loc.first) + abs(src_loc.second - dst_loc.second));
+ int dx = abs(src_loc.first - dst_loc.first), dy = abs(src_loc.second - dst_loc.second);
+ return (130 - 25 * args.speed) *
+ (6 + std::max(dx - 5, 0) + std::max(dy - 5, 0) + 2 * (std::min(dx, 5) + std::min(dy, 5)));
}
delay_t Arch::predictDelay(const NetInfo *net_info, const PortRef &sink) const
{
const auto &driver = net_info->driver;
+ if ((driver.port == id_FCO && sink.port == id_FCI) || sink.port == id_FXA || sink.port == id_FXB)
+ return 0;
auto driver_loc = getBelLocation(driver.cell->bel);
auto sink_loc = getBelLocation(sink.cell->bel);
- return (240 - 20 * args.speed) * (abs(driver_loc.x - sink_loc.x) + abs(driver_loc.y - sink_loc.y));
+ // Encourage use of direct interconnect
+ if (driver_loc.x == sink_loc.x && driver_loc.y == sink_loc.y) {
+ if ((sink.port == id_A0 || sink.port == id_A1) && (driver.port == id_F1) &&
+ (driver_loc.z == 2 || driver_loc.z == 3))
+ return 0;
+ if ((sink.port == id_B0 || sink.port == id_B1) && (driver.port == id_F1) &&
+ (driver_loc.z == 0 || driver_loc.z == 1))
+ return 0;
+ if ((sink.port == id_C0 || sink.port == id_C1) && (driver.port == id_F0) &&
+ (driver_loc.z == 2 || driver_loc.z == 3))
+ return 0;
+ if ((sink.port == id_D0 || sink.port == id_D1) && (driver.port == id_F0) &&
+ (driver_loc.z == 0 || driver_loc.z == 1))
+ return 0;
+ }
+
+ int dx = abs(driver_loc.x - sink_loc.x), dy = abs(driver_loc.y - sink_loc.y);
+ return (130 - 25 * args.speed) *
+ (6 + std::max(dx - 5, 0) + std::max(dy - 5, 0) + 2 * (std::min(dx, 5) + std::min(dy, 5)));
}
-bool Arch::getBudgetOverride(const NetInfo *net_info, const PortRef &sink, delay_t &budget) const { return false; }
+bool Arch::getBudgetOverride(const NetInfo *net_info, const PortRef &sink, delay_t &budget) const
+{
+ if (net_info->driver.port == id_FCO && sink.port == id_FCI) {
+ budget = 0;
+ return true;
+ } else if (sink.port == id_FXA || sink.port == id_FXB) {
+ budget = 0;
+ return true;
+ } else {
+ return false;
+ }
+}
// -----------------------------------------------------------------------
-bool Arch::place() { return placer1(getCtx(), Placer1Cfg(getCtx())); }
+bool Arch::place()
+{
+ bool result = placer1(getCtx(), Placer1Cfg(getCtx()));
+ if (result)
+ permute_luts();
+ return result;
+}
bool Arch::route()
{
@@ -602,7 +648,7 @@ bool Arch::getCellDelay(const CellInfo *cell, IdString fromPort, IdString toPort
// Data for -8 grade
if (cell->type == id_TRELLIS_SLICE) {
- bool has_carry = str_or_default(cell->params, id("MODE"), "LOGIC") == "CCU2";
+ bool has_carry = cell->sliceInfo.is_carry;
if (fromPort == id_A0 || fromPort == id_B0 || fromPort == id_C0 || fromPort == id_D0 || fromPort == id_A1 ||
fromPort == id_B1 || fromPort == id_C1 || fromPort == id_D1 || fromPort == id_M0 || fromPort == id_M1 ||
fromPort == id_FXA || fromPort == id_FXB || fromPort == id_FCI) {
@@ -639,7 +685,7 @@ TimingPortClass Arch::getPortTimingClass(const CellInfo *cell, IdString port, in
auto disconnected = [cell](IdString p) { return !cell->ports.count(p) || cell->ports.at(p).net == nullptr; };
clockInfoCount = 0;
if (cell->type == id_TRELLIS_SLICE) {
- int sd0 = int_or_default(cell->params, id("REG0_SD"), 0), sd1 = int_or_default(cell->params, id("REG1_SD"), 0);
+ int sd0 = cell->sliceInfo.sd0, sd1 = cell->sliceInfo.sd1;
if (port == id_CLK || port == id_WCK)
return TMG_CLOCK_INPUT;
if (port == id_A0 || port == id_A1 || port == id_B0 || port == id_B1 || port == id_C0 || port == id_C1 ||
@@ -746,6 +792,29 @@ TimingPortClass Arch::getPortTimingClass(const CellInfo *cell, IdString port, in
return TMG_GEN_CLOCK;
else
NPNR_ASSERT_FALSE("bad clkdiv port");
+ } else if (cell->type == id_DQSBUFM) {
+ if (port == id_READ0 || port == id_READ1) {
+ clockInfoCount = 1;
+ return TMG_REGISTER_INPUT;
+ } else if (port == id_DATAVALID) {
+ clockInfoCount = 1;
+ return TMG_REGISTER_OUTPUT;
+ } else if (port == id_SCLK || port == id_ECLK || port == id_DQSI) {
+ return TMG_CLOCK_INPUT;
+ } else if (port == id_DQSR90 || port == id_DQSW || port == id_DQSW270) {
+ return TMG_GEN_CLOCK;
+ }
+ return (cell->ports.at(port).type == PORT_OUT) ? TMG_STARTPOINT : TMG_ENDPOINT;
+ } else if (cell->type == id_DDRDLL) {
+ if (port == id_CLK)
+ return TMG_CLOCK_INPUT;
+ return (cell->ports.at(port).type == PORT_OUT) ? TMG_STARTPOINT : TMG_ENDPOINT;
+ } else if (cell->type == id_TRELLIS_ECLKBUF) {
+ return (cell->ports.at(port).type == PORT_OUT) ? TMG_COMB_OUTPUT : TMG_COMB_INPUT;
+ } else if (cell->type == id_ECLKSYNCB) {
+ if (cell->ports.at(port).name == id_STOP)
+ return TMG_ENDPOINT;
+ return (cell->ports.at(port).type == PORT_OUT) ? TMG_COMB_OUTPUT : TMG_COMB_INPUT;
} else {
log_error("cell type '%s' is unsupported (instantiated as '%s')\n", cell->type.c_str(this),
cell->name.c_str(this));
@@ -759,8 +828,7 @@ TimingClockingInfo Arch::getPortClockingInfo(const CellInfo *cell, IdString port
info.hold = getDelayFromNS(0);
info.clockToQ = getDelayFromNS(0);
if (cell->type == id_TRELLIS_SLICE) {
- int sd0 = int_or_default(cell->params, id("REG0_SD"), 0), sd1 = int_or_default(cell->params, id("REG1_SD"), 0);
-
+ int sd0 = cell->sliceInfo.sd0, sd1 = cell->sliceInfo.sd1;
if (port == id_WD0 || port == id_WD1 || port == id_WAD0 || port == id_WAD1 || port == id_WAD2 ||
port == id_WAD3 || port == id_WRE) {
info.edge = RISING_EDGE;
@@ -829,6 +897,16 @@ TimingClockingInfo Arch::getPortClockingInfo(const CellInfo *cell, IdString port
info.setup = getDelayFromNS(0.1);
info.hold = getDelayFromNS(0);
}
+ } else if (cell->type == id_DQSBUFM) {
+ info.clock_port = id_SCLK;
+ if (port == id_DATAVALID) {
+ info.clockToQ = getDelayFromNS(0.2);
+ } else if (port == id_READ0 || port == id_READ1) {
+ info.setup = getDelayFromNS(0.5);
+ info.hold = getDelayFromNS(-0.4);
+ } else {
+ NPNR_ASSERT_FALSE("unknown DQSBUFM register port");
+ }
}
return info;
}
@@ -850,4 +928,41 @@ GlobalInfoPOD Arch::globalInfoAtLoc(Location loc)
return chip_info->location_glbinfo[locidx];
}
+bool Arch::getPIODQSGroup(BelId pio, bool &dqsright, int &dqsrow)
+{
+ for (int i = 0; i < chip_info->num_pios; i++) {
+ if (Location(chip_info->pio_info[i].abs_loc) == pio.location && chip_info->pio_info[i].bel_index == pio.index) {
+ int dqs = chip_info->pio_info[i].dqsgroup;
+ if (dqs == -1)
+ return false;
+ else {
+ dqsright = (dqs & 2048) != 0;
+ dqsrow = dqs & 0x1FF;
+ return true;
+ }
+ }
+ }
+ NPNR_ASSERT_FALSE("failed to find PIO");
+}
+
+BelId Arch::getDQSBUF(bool dqsright, int dqsrow)
+{
+ BelId bel;
+ bel.location.y = dqsrow;
+ bel.location.x = (dqsright ? (chip_info->width - 1) : 0);
+ for (int i = 0; i < locInfo(bel)->num_bels; i++) {
+ auto &bd = locInfo(bel)->bel_data[i];
+ if (bd.type == id_DQSBUFM.index) {
+ bel.index = i;
+ return bel;
+ }
+ }
+ NPNR_ASSERT_FALSE("failed to find DQSBUF");
+}
+
+WireId Arch::getBankECLK(int bank, int eclk)
+{
+ return getWireByLocAndBasename(Location(0, 0), "G_BANK" + std::to_string(bank) + "ECLK" + std::to_string(eclk));
+}
+
NEXTPNR_NAMESPACE_END
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-25 09:28:49 +0000