src/edu/berkeley/fleet/fpga/Fpga.java

   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.*;
  11 import java.util.*;
  12 import java.io.*;
  13 import edu.berkeley.fleet.two.*;
  14 import static edu.berkeley.fleet.two.FleetTwoFleet.*;
  15 import static edu.berkeley.fleet.fpga.verilog.Verilog.*;
  16
  17
  18 /*
  19 => get rid of getInputPort(String) and instead use members
  20 => clean up fabricelement methods
  21 => get rid of addcrap
  22 => automatic width-setting on ports
  23 => nuke DATAWIDTH?
  24   => serdes and fastclock/slowclock?
  25 */
  26
  27 public class Fpga extends FleetTwoFleet {
  28
  29     public  Module top;
  30     public  FabricElement top_horn;
  31     Ship debugShip;
  32
  33     public LinkedHashMap<String,FpgaShip> ships = new LinkedHashMap<String,FpgaShip>();
  34     public Iterator<Ship> iterator() { return (Iterator<Ship>)(Object)ships.values().iterator(); }
  35
  36     public Ship getShip(String type, int ordinal) {
  37         for(Ship s : this)
  38             if (s.getType().equals(type))
  39                 if (--ordinal < 0)
  40                     return s;
  41         return null;
  42     }
  43
  44     public static void main(String[] s) throws Exception {
  45         new Fpga(new Module("root")).top.dump(s[0]);
  46     }
  47
  48     public Module getVerilogModule() { return top; }
  49
  50     public FleetProcess run(Instruction[] instructions) {
  51         try {
  52             return new Client(this, "none", instructions);
  53         } catch (Exception e) { throw new RuntimeException(e); }
  54     }
  55
  56     public BitVector getDestAddr(Path path) {
  57         return ((FpgaPath)path).toBitVector();
  58     }
  59
  60     // Setup //////////////////////////////////////////////////////////////////////////////
  61
  62     public Ship createShip(String type, String name) throws IOException {
  63         ShipDescription sd = new ShipDescription(type, new BufferedReader(new InputStreamReader(new FileInputStream("ships/"+type+".ship"))));
  64         FpgaShip ship = new FpgaShip(this, sd);
  65         ships.put(name, ship);
  66         return ship;
  67     }
  68
  69     public Fpga() throws Exception { this(new Module("root")); }
  70     public Fpga(Module top) throws Exception {
  71         this.top = top;
  72         debugShip = createShip("Debug",     "debug");
  73
  74         boolean small = false;
  75
  76         createShip("Memory",      "memory1");
  77
  78         if (small) {
  79             createShip("Fifo",           "fifo");
  80             createShip("Alu",            "alu");
  81             createShip("Counter",        "counter");
  82             createShip("CarrySaveAdder", "csa1");
  83             createShip("Rotator",        "rotator");
  84             createShip("Lut3",           "lut");
  85         } else {
  86             createShip("Memory",    "memory2");
  87             createShip("Memory",    "memory3");
  88
  89             for(int i=0; i<3; i++)
  90                 createShip("Alu",       "alu"+i);
  91
  92             /*
  93             for(int i=0; i<2; i++)
  94                 createShip("Fifo",      "fifo"+i);
  95             */
  96
  97             for(int i=0; i<14; i++)
  98                 createShip("Counter",  "counter"+i);
  99
 100             /*
 101             createShip("CarrySaveAdder",  "csa1");
 102             createShip("Rotator",         "rotator");
 103             createShip("Lut3",            "lut");
 104             */
 105             //createShip("DDR2",    "ddr2");
 106         }
 107         createShip("DRAM",    "dram");
 108         createShip("Video",   "video");
 109
 110         //Module.SourcePort  debug_in    = top.createWireSourcePort("debug_in", WIDTH_PACKET);
 111         Module.SourcePort  debug_out   = null;
 112         for(FpgaShip ship : (Iterable<FpgaShip>)(Object)this) {
 113             if (ship.getType().toLowerCase().equals("debug"))
 114                 debug_out = ship.getVerilogModule().getOutputPort("debug_out");
 115         }
 116
 117         // for FifoShip
 118         new Module.InstantiatedModule(top, new FifoModule(8, WIDTH_WORD));
 119
 120         Module.SourcePort  in          = top.createInputPort("in", 8);
 121         Module.SinkPort    out         = top.createOutputPort("out", 8, "");
 122         Module.Latch       temp_in     = top.new Latch("temp", WIDTH_PACKET);
 123         Module.Latch       count       = top.new Latch("count", 8);
 124         Module.Latch       count_out   = top.new Latch("count_out", 8);
 125
 126         ArrayList inbox_sources = new ArrayList<FabricElement>();
 127         ArrayList inbox_dests   = new ArrayList<FabricElement>();
 128         ArrayList outbox_sources = new ArrayList<FabricElement>();
 129         ArrayList outbox_dests   = new ArrayList<FabricElement>();
 130         ArrayList instruction_dests   = new ArrayList<FabricElement>();
 131         int numdocks = 0;
 132         for(FpgaShip ship : (Iterable<FpgaShip>)(Object)this) {
 133             if (ship.getType().toLowerCase().equals("debug"))
 134                 debug_out = ship.getVerilogModule().getOutputPort("debug_out");
 135             for(Dock port : ship) {
 136                 if (port.isInputDock()) {
 137                     inbox_sources.add(((FpgaDock)port));
 138                     instruction_dests.add(port.getInstructionDestination());
 139                     inbox_dests.add(port.getDataDestination());
 140                 } else {
 141                     outbox_sources.add(((FpgaDock)port));
 142                     instruction_dests.add(port.getInstructionDestination());
 143                     outbox_dests.add(port.getDataDestination());
 144                 }
 145                 numdocks++;
 146             }
 147         }
 148         //System.err.println("dock count = " + numdocks);
 149         ArrayList dests   = new ArrayList<FabricElement>();
 150         ArrayList sources = new ArrayList<FabricElement>();
 151         sources.addAll(inbox_sources);
 152         sources.addAll(outbox_sources);
 153         dests.addAll(inbox_dests);
 154         dests.addAll(instruction_dests);
 155         dests.addAll(outbox_dests);
 156         top_horn = mkNode((FabricElement[])dests.toArray(new FabricElement[0]), true);
 157         FabricElement   source  = mkNode((FabricElement[])sources.toArray(new FabricElement[0]), false);
 158         FunnelModule.FunnelInstance top_funnel = new FunnelModule.FunnelInstance(this, top, null, source.getOutputPort());
 159         ((FunnelModule.FunnelInstance)source).out = top_funnel;
 160         //top_horn.addInput(top_funnel, top_funnel.getOutputPort());
 161         top_funnel.addOutput(top_horn, top_horn.getInputPort());
 162
 163         //Module.SourcePort  debug_in    = top.createWireSourcePort("debug_in", WIDTH_PACKET);
 164         Module.SinkPort debug_in = top_funnel.getInputPort("in1");
 165
 166         top.new Event(new Object[] { in, "count<=7" },
 167                       new Object[] { new SimpleAction(temp_in.getVerilogName()+" <= {" + temp_in.getVerilogName() + "["+(WIDTH_PACKET-(1+8))+":0], in[7:0] };"),
 168                                      new SimpleAction("count <= count+1;"),
 169                                      in
 170                       });
 171         top.new Event(new Object[] { debug_in, "count>7" },
 172                       new Object[] { new SimpleAction(" count <= 0; "),
 173                                      new AssignAction(debug_in, temp_in),
 174                                      debug_in
 175                       });
 176         top.new Event(new Object[] { out, debug_out },
 177                       new Object[] { new SimpleAction(out.getVerilogName()+" <= ("+debug_out.getVerilogName()+">> (count_out*8));"),
 178                                      new SimpleAction("if (count_out >= 5) begin "+
 179                                                           "count_out <= 0; "+debug_out.getVerilogName()+"_a <= 1; end"+
 180                                                           " else count_out <= count_out+1; "),
 181                                      out });
 182
 183     }
 184
 185     public FabricElement mkNode(FabricElement[] ports, boolean is_horn) { return mkNode(ports, is_horn, 0, ports.length); }
 186     public FabricElement mkNode(FabricElement[] ports, boolean is_horn, int start, int end) {
 187         switch(end-start) {
 188             case 0: return null;
 189             case 1: return ports[start];
 190             default: {
 191                 FabricElement leftPort  = mkNode(ports, is_horn,  start,         (end+start)/2);
 192                 FabricElement rightPort = mkNode(ports, is_horn,  (end+start)/2, end);
 193                 return is_horn
 194                     ? new HornModule.HornInstance(this, top,     leftPort, rightPort)
 195                     : new FunnelModule.FunnelInstance(this, top, leftPort, rightPort);
 196             }
 197         }
 198     }
 199
 200
 201     // Expand //////////////////////////////////////////////////////////////////////////////
 202
 203     public void expand(ShipDescription sd) {
 204         try {
 205             if (sd.getSection("fpga")==null) return;
 206             String filename = sd.getName().toLowerCase();
 207             File outf = new File("build/fpga/"+filename+".v");
 208             new File(outf.getParent()).mkdirs();
 209             System.err.println("writing to " + outf);
 210             FileOutputStream out = new FileOutputStream(outf);
 211             PrintWriter pw = new PrintWriter(out);
 212
 213             boolean debug = "debug".equals(filename);
 214
 215             pw.println("`define DATAWIDTH                "+WIDTH_WORD);
 216             pw.println("`define CODEBAG_SIZE_BITS        "+CBD_SIZE.valmaskwidth);
 217             pw.println();
 218
 219             for(DockDescription dd : sd) {
 220                 String name = dd.getName();
 221                 pw.println("`define "+name+"_full    ("+name+"_r && !"+name+"_a)");
 222                 pw.println("`define "+name+"_empty  (!"+name+"_r && !"+name+"_a)");
 223                 if (dd.isInputDock()) {
 224                     pw.println("`define drain_"+name+"  "+name+"_a <= 1");
 225                 } else {
 226                     pw.println("`define fill_"+name+"  "+name+"_r <= 1");
 227                 }
 228             }
 229
 230             pw.print("`define reset ");
 231             for(DockDescription bb : sd) {
 232                 String bb_name = bb.getName();
 233                 if (bb.isInputDock()) pw.print(bb_name+"_a <= 1; "+bb_name+"_f <= 0; ");
 234                 else                  pw.print(bb_name+"_r <= 0; ");
 235             }
 236             pw.println();
 237
 238             pw.print("`define flush ");
 239             for(DockDescription bb : sd)
 240                 if (bb.isInputDock())
 241                     pw.print(" if (!"+bb.getName()+"_r_) "+bb.getName()+"_f <= 0; ");
 242             pw.print("if (1");
 243             for(DockDescription bb : sd)
 244                 if (bb.isInputDock())
 245                     pw.print(" && "+bb.getName()+"_r_ && !"+bb.getName()+"_a");
 246             pw.print(") begin ");
 247             if (true) {
 248                 pw.print("if (1");
 249                 for(DockDescription bb : sd)
 250                     if (bb.isInputDock())
 251                         pw.print(" && "+bb.getName()+"_d["+WIDTH_WORD+"] ");
 252                 pw.print(") begin ");
 253                 if (true) {
 254                     for(DockDescription bb : sd)
 255                         if (bb.isInputDock())
 256                             pw.print(bb.getName()+"_f <= 1; ");
 257                 }
 258                 pw.print(" end else if (0");
 259                 for(DockDescription bb : sd)
 260                     if (bb.isInputDock())
 261                         pw.print(" || "+bb.getName()+"_d["+WIDTH_WORD+"] ");
 262                 pw.print(") begin ");
 263                 if (true) {
 264                     for(DockDescription bb : sd)
 265                         if (bb.isInputDock())
 266                             pw.print(" if (!"+bb.getName()+"_d["+WIDTH_WORD+"]) "+bb.getName()+"_f <= 1; ");
 267                 }
 268                 pw.print(" end ");
 269             }
 270             pw.print(" end ");
 271             pw.println();
 272
 273             pw.println("module " + filename + "( clk, rst ");
 274             for(DockDescription bb : sd) {
 275                 String bb_name = bb.getName();
 276                 pw.print("        ");
 277                 if (bb.isInputDock()) {
 278                     pw.print(", " + bb_name+"_r_");
 279                     pw.print(", " + bb_name+"_a_");
 280                     pw.print(", " + bb_name+"_d");
 281                 } else {
 282                     pw.print(", " + bb_name+"_r_");
 283                     pw.print(", " + bb_name+"_a");
 284                     pw.print(", " + bb_name+"_d_");
 285                 }
 286                 pw.println();
 287             }
 288             if (filename.equals("debug")) {
 289                 pw.println("    , out_r_");
 290                 pw.println("    , out_a");
 291                 pw.println("    , out_d_");
 292             }
 293             if (filename.equals("dram")) {
 294                 pw.println("    , dram_addr_");
 295                 pw.println("    , dram_addr_r_");
 296                 pw.println("    , dram_addr_a");
 297                 pw.println("    , dram_isread_");
 298                 pw.println("    , dram_write_data_");
 299                 pw.println("    , dram_write_data_push_");
 300                 pw.println("    , dram_write_data_full");
 301                 pw.println("    , dram_read_data");
 302                 pw.println("    , dram_read_data_pop_");
 303                 pw.println("    , dram_read_data_empty");
 304                 pw.println("    , dram_read_data_latency");
 305             }
 306             if (filename.equals("ddr2")) {
 307                 pw.println("    , ddr2_addr_");
 308                 pw.println("    , ddr2_addr_r_");
 309                 pw.println("    , ddr2_addr_a");
 310                 pw.println("    , ddr2_isread_");
 311                 pw.println("    , ddr2_write_data_");
 312                 pw.println("    , ddr2_write_data_push_");
 313                 pw.println("    , ddr2_write_data_full");
 314                 pw.println("    , ddr2_read_data");
 315                 pw.println("    , ddr2_read_data_pop_");
 316                 pw.println("    , ddr2_read_data_empty");
 317                 pw.println("    , ddr2_read_data_latency");
 318             }
 319             if (filename.equals("video")) {
 320                 pw.println("    , vga_clk");
 321                 pw.println("    , vga_psave");
 322                 pw.println("    , vga_hsync");
 323                 pw.println("    , vga_vsync");
 324                 pw.println("    , vga_sync");
 325                 pw.println("    , vga_blank");
 326                 pw.println("    , vga_r");
 327                 pw.println("    , vga_g");
 328                 pw.println("    , vga_b");
 329                 pw.println("    , vga_clkout");
 330             }
 331             pw.println("        );");
 332             pw.println();
 333             pw.println("    input clk;");
 334             pw.println("    input rst;");
 335             if (filename.equals("debug")) {
 336                 pw.println("        output  ["+WIDTH_WORD+":0] out_d_;");
 337                 pw.println("        input   out_a;");
 338                 pw.println("        output  out_r_;");
 339             }
 340             if (filename.equals("dram")) {
 341                 pw.println("output  [31:0] dram_addr_;");
 342                 pw.println("output         dram_addr_r_;");
 343                 pw.println("input          dram_addr_a;");
 344                 pw.println("output         dram_isread_;");
 345                 pw.println("output  [63:0] dram_write_data_;");
 346                 pw.println("output         dram_write_data_push_;");
 347                 pw.println("input          dram_write_data_full;");
 348                 pw.println("input   [63:0] dram_read_data;");
 349                 pw.println("output         dram_read_data_pop_;");
 350                 pw.println("input          dram_read_data_empty;");
 351                 pw.println("input   [1:0]  dram_read_data_latency;");
 352             }
 353             if (filename.equals("ddr2")) {
 354                 pw.println("output  [31:0] ddr2_addr_;");
 355                 pw.println("output         ddr2_addr_r_;");
 356                 pw.println("input          ddr2_addr_a;");
 357                 pw.println("output         ddr2_isread_;");
 358                 pw.println("output  [63:0] ddr2_write_data_;");
 359                 pw.println("output         ddr2_write_data_push_;");
 360                 pw.println("input          ddr2_write_data_full;");
 361                 pw.println("input   [63:0] ddr2_read_data;");
 362                 pw.println("output         ddr2_read_data_pop_;");
 363                 pw.println("input          ddr2_read_data_empty;");
 364                 pw.println("input   [1:0]  ddr2_read_data_latency;");
 365             }
 366             if (filename.equals("video")) {
 367                 pw.println("input          vga_clk;");
 368                 pw.println("output         vga_psave;");
 369                 pw.println("output         vga_hsync;");
 370                 pw.println("output         vga_vsync;");
 371                 pw.println("output         vga_sync;");
 372                 pw.println("output         vga_blank;");
 373                 pw.println("output   [7:0] vga_r;");
 374                 pw.println("output   [7:0] vga_g;");
 375                 pw.println("output   [7:0] vga_b;");
 376                 pw.println("output         vga_clkout;");
 377             }
 378
 379             for(DockDescription bb : sd) {
 380                 String bb_name = bb.getName();
 381                 if (bb.isInputDock()) {
 382                     pw.println("        input   ["+WIDTH_WORD+":0] "+bb_name+"_d;");
 383                     pw.println("        input   "+bb_name+"_r_;");
 384                     pw.println("        wire    "+bb_name+"_r;");
 385                     pw.println("        assign  "+bb_name+"_r = "+bb_name+"_r_ & ~"+bb_name+"_d["+WIDTH_WORD+"];");
 386                     pw.println("        output  "+bb_name+"_a_;");
 387                     pw.println("        reg     "+bb_name+"_a;");
 388                     pw.println("        initial "+bb_name+"_a  = 0;");
 389                     pw.println("        reg     "+bb_name+"_f;");
 390                     pw.println("        initial "+bb_name+"_f  = 0;");
 391                     pw.println("        assign  "+bb_name+"_a_ = "+bb_name+"_a || "+bb_name+"_f;");
 392                 } else {
 393                     pw.println("        output  ["+WIDTH_WORD+":0] "+bb_name+"_d_;");
 394                     pw.println("        input   "+bb_name+"_a;");
 395                     pw.println("        output  "+bb_name+"_r_;");
 396                     pw.println("        reg     "+bb_name+"_r;");
 397                     pw.println("        initial "+bb_name+"_r  = 0;");
 398                     pw.println("        assign  "+bb_name+"_r_ = "+bb_name+"_r;");
 399                 }
 400                 pw.println();
 401             }
 402
 403             pw.println(sd.getSection("fpga"));
 404
 405             pw.println("endmodule");
 406
 407             pw.flush();
 408             pw.close();
 409         } catch (Exception e) { throw new RuntimeException(e); }
 410     }
 411
 412 }