1 package edu.berkeley.fleet.fpga;
2 import edu.berkeley.fleet.fpga.*;
3 import edu.berkeley.fleet.api.*;
4 import edu.berkeley.fleet.two.*;
5 import edu.berkeley.fleet.*;
6 import java.lang.reflect.*;
7 import edu.berkeley.sbp.chr.*;
8 import edu.berkeley.sbp.misc.*;
9 import edu.berkeley.sbp.meta.*;
10 import edu.berkeley.sbp.util.*;
13 import edu.berkeley.fleet.two.*;
14 import static edu.berkeley.fleet.two.FleetTwoFleet.*;
15 import static edu.berkeley.fleet.fpga.verilog.Verilog.*;
16 import static edu.berkeley.fleet.fpga.verilog.Verilog.PercolatedPort;
19 public class Fpga extends FleetTwoFleet {
22 public FabricElement top_horn;
25 public LinkedHashMap<String,FpgaShip> ships = new LinkedHashMap<String,FpgaShip>();
26 public Iterator<Ship> iterator() { return (Iterator<Ship>)(Object)ships.values().iterator(); }
28 public Ship getShip(String type, int ordinal) {
30 if (s.getType().equals(type))
36 public static void main(String[] s) throws Exception {
37 new Fpga(new Module("root")).top.dump(s[0]);
40 pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(s[0]+"/timescale.v")));
41 pw.println("`timescale 1ns / 10ps");
44 pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(s[0]+"/bram14.v")));
45 pw.println("`define BRAM_ADDR_WIDTH 14");
46 pw.println("`define BRAM_DATA_WIDTH `WORDWIDTH");
47 pw.println("`define BRAM_SIZE (1<<(`BRAM_ADDR_WIDTH))");
48 pw.println("`define BRAM_NAME bram14");
49 pw.println("`include \"bram.inc\"");
52 pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(s[0]+"/vram.v")));
53 pw.println("`define BRAM_ADDR_WIDTH 19");
54 pw.println("`define BRAM_DATA_WIDTH 3");
55 pw.println("`define BRAM_SIZE (640*480)");
56 pw.println("`define BRAM_NAME vram");
57 pw.println("`include \"bram.inc\"");
61 public Module getVerilogModule() { return top; }
63 public FleetProcess run(Instruction[] instructions) {
65 return new Client(this, "none", instructions);
66 } catch (Exception e) { throw new RuntimeException(e); }
69 public BitVector getDestAddr(Path path) {
70 return ((FpgaPath)path).toBitVector();
73 // Setup //////////////////////////////////////////////////////////////////////////////
75 public Ship createShip(String type, String name) throws IOException {
76 ShipDescription sd = new ShipDescription(type, new BufferedReader(new InputStreamReader(new FileInputStream("ships/"+type+".ship"))));
77 FpgaShip ship = new FpgaShip(this, sd);
78 ships.put(name, ship);
82 public Fpga() throws Exception { this(new Module("root")); }
83 public Fpga(Module top) throws Exception {
85 debugShip = createShip("Debug", "debug");
87 //boolean small = false;
90 createShip("Memory", "memory1");
93 for(int i=0; i<2; i++)
94 createShip("Fifo", "fifo"+i);
95 for(int i=0; i<2; i++)
96 createShip("Alu", "alu"+i);
97 createShip("Counter", "counter");
98 createShip("CarrySaveAdder", "csa1");
99 createShip("Rotator", "rotator");
100 createShip("Lut3", "lut");
102 createShip("Memory", "memory2");
103 createShip("Memory", "memory3");
105 for(int i=0; i<3; i++)
106 createShip("Alu", "alu"+i);
108 for(int i=0; i<1; i++)
109 createShip("Fifo", "fifo"+i);
111 for(int i=0; i<14; i++)
112 createShip("Counter", "counter"+i);
115 createShip("CarrySaveAdder", "csa1");
116 createShip("Rotator", "rotator");
117 createShip("Lut3", "lut");
119 //createShip("DDR2", "ddr2");
121 createShip("DRAM", "dram");
122 createShip("Video", "video");
124 //Module.SourcePort debug_in = top.createWireSourcePort("debug_in", WIDTH_PACKET);
125 Module.SourcePort debug_out = null;
126 for(FpgaShip ship : (Iterable<FpgaShip>)(Object)this) {
127 if (ship.getType().toLowerCase().equals("debug"))
128 debug_out = ship.getVerilogModule().getOutputPort("debug_out");
132 new Module.InstantiatedModule(top, new FifoModule(8, WIDTH_WORD));
134 Module.SourcePort in = top.createInputPort("in", 8);
135 Module.SinkPort out = top.createOutputPort("out", 8, "");
136 Module.Latch temp_in = top.new Latch("temp", WIDTH_PACKET);
137 Module.Latch count = top.new Latch("count", 8);
138 Module.Latch count_out = top.new Latch("count_out", 8);
140 ArrayList inbox_sources = new ArrayList<FabricElement>();
141 ArrayList inbox_dests = new ArrayList<FabricElement>();
142 ArrayList outbox_sources = new ArrayList<FabricElement>();
143 ArrayList outbox_dests = new ArrayList<FabricElement>();
144 ArrayList instruction_dests = new ArrayList<FabricElement>();
146 for(FpgaShip ship : (Iterable<FpgaShip>)(Object)this) {
147 if (ship.getType().toLowerCase().equals("debug"))
148 debug_out = ship.getVerilogModule().getOutputPort("debug_out");
149 for(Dock port : ship) {
150 if (port.isInputDock()) {
151 inbox_sources.add(((FpgaDock)port));
152 instruction_dests.add(port.getInstructionDestination());
153 inbox_dests.add(port.getDataDestination());
155 outbox_sources.add(((FpgaDock)port));
156 instruction_dests.add(port.getInstructionDestination());
157 outbox_dests.add(port.getDataDestination());
162 ArrayList dests = new ArrayList<FabricElement>();
163 ArrayList sources = new ArrayList<FabricElement>();
164 sources.addAll(inbox_sources);
165 sources.addAll(outbox_sources);
166 dests.addAll(inbox_dests);
167 dests.addAll(instruction_dests);
168 dests.addAll(outbox_dests);
169 top_horn = mkNode((FabricElement[])dests.toArray(new FabricElement[0]), true);
170 FabricElement source = mkNode((FabricElement[])sources.toArray(new FabricElement[0]), false);
171 FunnelModule.FunnelInstance top_funnel = new FunnelModule.FunnelInstance(this, top, null, source.getOutputPort());
172 ((FunnelModule.FunnelInstance)source).out = top_funnel;
173 top_funnel.addOutput(top_horn, top_horn.getInputPort());
174 Module.SinkPort debug_in = top_funnel.getInputPort("in1");
176 top.new Event(new Object[] { in, "count<=7" },
177 new Object[] { new SimpleAction(temp_in.getVerilogName()+" <= {" + temp_in.getVerilogName() + "["+(WIDTH_PACKET-(1+8))+":0], in[7:0] };"),
178 new AssignAction(count, count.getVerilogName()+"+1"),
181 top.new Event(new Object[] { debug_in, "count>7" },
182 new Object[] { new AssignAction(count, "0"),
183 new AssignAction(debug_in, temp_in),
186 top.new Event(new Object[] { out, debug_out },
187 new Object[] { new SimpleAction(out.getVerilogName()+" <= ("+debug_out.getVerilogName()+">> (count_out*8));"),
188 new ConditionalAction("count_out >= 5", debug_out),
189 new ConditionalAction("count_out >= 5", new AssignAction(count_out, "0")),
190 new ConditionalAction("count_out < 5", new AssignAction(count_out, "count_out+1")),
195 public FabricElement mkNode(FabricElement[] ports, boolean is_horn) { return mkNode(ports, is_horn, 0, ports.length); }
196 public FabricElement mkNode(FabricElement[] ports, boolean is_horn, int start, int end) {
199 case 1: return ports[start];
201 FabricElement leftPort = mkNode(ports, is_horn, start, (end+start)/2);
202 FabricElement rightPort = mkNode(ports, is_horn, (end+start)/2, end);
204 ? new HornModule.HornInstance(this, top, leftPort, rightPort)
205 : new FunnelModule.FunnelInstance(this, top, leftPort, rightPort);
211 // Expand //////////////////////////////////////////////////////////////////////////////
213 public void expand(ShipDescription sd) {
215 if (sd.getSection("fpga")==null) return;
216 String filename = sd.getName().toLowerCase();
217 File outf = new File("build/fpga/"+filename+".v");
218 new File(outf.getParent()).mkdirs();
219 System.err.println("writing to " + outf);
220 FileOutputStream out = new FileOutputStream(outf);
221 PrintWriter pw = new PrintWriter(out);
223 boolean debug = "debug".equals(filename);
225 pw.println("`define WORDWIDTH "+WIDTH_WORD);
226 pw.println("`define CODEBAG_SIZE_BITS "+CBD_SIZE.valmaskwidth);
229 for(DockDescription dd : sd) {
230 String name = dd.getName();
231 pw.println("`define "+name+"_full ("+name+"_r && !"+name+"_a)");
232 pw.println("`define "+name+"_empty (!"+name+"_r && !"+name+"_a)");
233 if (dd.isInputDock()) {
234 pw.println("`define drain_"+name+" "+name+"_a <= 1;");
236 pw.println("`define fill_"+name+" "+name+"_r <= 1;");
237 pw.println("`define "+name+"_draining ("+name+"_r && "+name+"_a)");
242 pw.println("`define "+name+"_full ("+name+"_r && !"+name+"_a)");
243 pw.println("`define "+name+"_empty (!"+name+"_r && !"+name+"_a)");
244 pw.println("`define fill_"+name+" "+name+"_r <= 1;");
245 pw.println("`define "+name+"_draining ("+name+"_r && "+name+"_a)");
248 pw.print("`define reset ");
249 for(DockDescription bb : sd) {
250 String bb_name = bb.getName();
251 if (bb.isInputDock()) pw.print(bb_name+"_a <= 1; "+bb_name+"_f <= 0; ");
252 else pw.print(bb_name+"_r <= 0; ");
255 String bb_name = "out";
256 pw.print(bb_name+"_r <= 0; ");
260 pw.print("`define cleanup ");
261 for(DockDescription bb : sd) {
262 String bb_name = bb.getName();
263 if (bb.isInputDock()) pw.print("if (!"+bb_name+"_r && "+bb_name+"_a) "+bb_name+"_a <= 0; ");
264 else pw.print("if ( "+bb_name+"_r && "+bb_name+"_a) "+bb_name+"_r <= 0; ");
267 String bb_name = "out";
268 pw.print("if ( "+bb_name+"_r && "+bb_name+"_a) "+bb_name+"_r <= 0; ");
272 // FIXME: this corresponds to something
274 pw.print("`define flush_happening (1");
275 for(DockDescription bb : sd)
276 if (bb.isInputDock())
277 pw.print(" && "+bb.getName()+"_r_ && !"+bb.getName()+"_a && "+bb.getName()+"_d["+WIDTH_WORD+"]");
281 pw.print("`define flush ");
282 for(DockDescription bb : sd)
283 if (bb.isInputDock())
284 pw.print(" if (!"+bb.getName()+"_r_) "+bb.getName()+"_f <= 0; ");
286 for(DockDescription bb : sd)
287 if (bb.isInputDock())
288 pw.print(" && "+bb.getName()+"_r_ && !"+bb.getName()+"_a");
289 pw.print(") begin ");
292 for(DockDescription bb : sd)
293 if (bb.isInputDock())
294 pw.print(" && "+bb.getName()+"_d["+WIDTH_WORD+"] ");
295 pw.print(") begin ");
297 for(DockDescription bb : sd)
298 if (bb.isInputDock())
299 pw.print(bb.getName()+"_f <= 1; ");
301 pw.print(" end else if (0");
302 for(DockDescription bb : sd)
303 if (bb.isInputDock())
304 pw.print(" || "+bb.getName()+"_d["+WIDTH_WORD+"] ");
305 pw.print(") begin ");
307 for(DockDescription bb : sd)
308 if (bb.isInputDock())
309 pw.print(" if (!"+bb.getName()+"_d["+WIDTH_WORD+"]) "+bb.getName()+"_f <= 1; ");
316 pw.println("module " + filename + "( clk, rst ");
317 for(DockDescription bb : sd) {
318 String bb_name = bb.getName();
320 if (bb.isInputDock()) {
321 pw.print(", " + bb_name+"_r_");
322 pw.print(", " + bb_name+"_a_");
323 pw.print(", " + bb_name+"_d");
325 pw.print(", " + bb_name+"_r_");
326 pw.print(", " + bb_name+"_a");
327 pw.print(", " + bb_name+"_d_");
331 if (filename.equals("debug")) {
332 pw.println(" , out_r_");
333 pw.println(" , out_a");
334 pw.println(" , out_d_");
336 for(PercolatedPort pp : sd.percolatedPorts) {
340 if (filename.equals("ddr2")) {
341 pw.println(" , ddr2_addr_");
342 pw.println(" , ddr2_addr_r_");
343 pw.println(" , ddr2_addr_a");
344 pw.println(" , ddr2_isread_");
345 pw.println(" , ddr2_write_data_");
346 pw.println(" , ddr2_write_data_push_");
347 pw.println(" , ddr2_write_data_full");
348 pw.println(" , ddr2_read_data");
349 pw.println(" , ddr2_read_data_pop_");
350 pw.println(" , ddr2_read_data_empty");
351 pw.println(" , ddr2_read_data_latency");
353 if (filename.equals("video")) {
354 pw.println(" , vga_clk");
355 pw.println(" , vga_psave");
356 pw.println(" , vga_hsync");
357 pw.println(" , vga_vsync");
358 pw.println(" , vga_sync");
359 pw.println(" , vga_blank");
360 pw.println(" , vga_r");
361 pw.println(" , vga_g");
362 pw.println(" , vga_b");
363 pw.println(" , vga_clkout");
367 pw.println(" input clk;");
368 pw.println(" input rst;");
369 for(PercolatedPort pp : sd.percolatedPorts) {
370 pw.print(pp.up ? "output" : "input");
373 pw.print("["+(pp.width-1)+":0]");
378 if (filename.equals("ddr2")) {
379 pw.println("output [31:0] ddr2_addr_;");
380 pw.println("output ddr2_addr_r_;");
381 pw.println("input ddr2_addr_a;");
382 pw.println("output ddr2_isread_;");
383 pw.println("output [63:0] ddr2_write_data_;");
384 pw.println("output ddr2_write_data_push_;");
385 pw.println("input ddr2_write_data_full;");
386 pw.println("input [63:0] ddr2_read_data;");
387 pw.println("output ddr2_read_data_pop_;");
388 pw.println("input ddr2_read_data_empty;");
389 pw.println("input [1:0] ddr2_read_data_latency;");
391 if (filename.equals("video")) {
392 pw.println("input vga_clk;");
393 pw.println("output vga_psave;");
394 pw.println("output vga_hsync;");
395 pw.println("output vga_vsync;");
396 pw.println("output vga_sync;");
397 pw.println("output vga_blank;");
398 pw.println("output [7:0] vga_r;");
399 pw.println("output [7:0] vga_g;");
400 pw.println("output [7:0] vga_b;");
401 pw.println("output vga_clkout;");
404 for(DockDescription bb : sd) {
405 String bb_name = bb.getName();
406 if (bb.isInputDock()) {
407 pw.println(" input ["+WIDTH_WORD+":0] "+bb_name+"_d;");
408 pw.println(" input "+bb_name+"_r_;");
409 pw.println(" wire "+bb_name+"_r;");
410 pw.println(" assign "+bb_name+"_r = "+bb_name+"_r_ & ~"+bb_name+"_d["+WIDTH_WORD+"];");
411 pw.println(" output "+bb_name+"_a_;");
412 pw.println(" reg "+bb_name+"_a;");
413 pw.println(" initial "+bb_name+"_a = 0;");
414 pw.println(" reg "+bb_name+"_f;");
415 pw.println(" initial "+bb_name+"_f = 0;");
416 pw.println(" assign "+bb_name+"_a_ = "+bb_name+"_a || "+bb_name+"_f;");
418 pw.println(" output ["+WIDTH_WORD+":0] "+bb_name+"_d_;");
419 pw.println(" input "+bb_name+"_a;");
420 pw.println(" output "+bb_name+"_r_;");
421 pw.println(" reg "+bb_name+"_r;");
422 pw.println(" initial "+bb_name+"_r = 0;");
423 pw.println(" assign "+bb_name+"_r_ = "+bb_name+"_r;");
427 if (filename.equals("debug")) {
428 String bb_name = "out";
429 pw.println(" output ["+WIDTH_WORD+":0] "+bb_name+"_d_;");
430 pw.println(" input "+bb_name+"_a;");
431 pw.println(" output "+bb_name+"_r_;");
432 pw.println(" reg "+bb_name+"_r;");
433 pw.println(" initial "+bb_name+"_r = 0;");
434 pw.println(" assign "+bb_name+"_r_ = "+bb_name+"_r;");
437 if (filename.equals("fifo")) {
438 pw.println(" wire in_a__;");
439 pw.println(" wire out_r__;");
440 pw.println(" fifo8x37 fifo8x37(clk, rst,");
441 pw.println(" in_r, in_a__, in_d,");
442 pw.println(" out_r__, out_a, out_d_);");
443 pw.println(" always @(posedge clk) begin");
444 pw.println(" if (!rst) begin");
445 pw.println(" `reset");
446 pw.println(" end else begin");
447 pw.println(" `flush");
448 pw.println(" out_r <= out_r__;");
449 pw.println(" in_a <= in_a__;");
453 pw.println(sd.getSection("fpga"));
456 pw.println("endmodule");
460 } catch (Exception e) { throw new RuntimeException(e); }