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-rw-r--r--ice40/arch.cc350
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;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-28 23:47:49 +0000