checkpoint: add crossbar initial stubs

rigel-sim/Makefile.am

@@ -35,6 +35,7 @@ common_SOURCES = \
  src/interconnect/tile_interconnect_new.cpp \
  src/interconnect/tile_interconnect_bcast.cpp \
  src/interconnect/tree_network.cpp \
+ src/interconnect/crossbar.cpp \
  src/memory/memory_model_ideal.cpp \
  src/memory/memory_model_gddr4.cpp \
  src/memory/dram_controller.cpp \

rigel-sim/include/interconnect/crossbar.h

@@ -0,0 +1,44 @@
+#ifndef __CROSSBAR_H__
+#define __CROSSBAR_H__
+
+#include "sim/componentbase.h"
+#include "util/construction_payload.h"
+
+extern ComponentCount CrossBarCount;
+
+//forward declarations
+class Packet;
+template<class T> class InPortBase;
+template<class T> class OutPortBase;
+
+namespace rigel {
+  class ConstructionPayload;
+}
+
+class CrossBar : public ComponentBase {
+
+  public:
+
+    CrossBar(
+      rigel::ConstructionPayload cp,
+      ComponentCount& count = CrossBarCount
+    );
+
+    /// component interface
+    /// required interface
+    void Dump()      {};
+    void Heartbeat() {};
+    void EndSim()    {};
+    int PerCycle()   {};
+
+  private:
+
+    int _numports;
+
+    std::vector< InPortBase<Packet*>* > inports;
+    std::vector< OutPortBase<Packet*>* > outports;
+
+};
+
+
+#endif

rigel-sim/src/interconnect/crossbar.cpp

@@ -0,0 +1,28 @@
+
+#include "interconnect/crossbar.h"
+#include "port/port.h"
+
+ComponentCount CrossBarCount;
+
+CrossBar::CrossBar(
+      rigel::ConstructionPayload cp,
+      ComponentCount& count
+) :
+  ComponentBase(cp.parent,
+                cp.change_name("CrossBar").component_name.c_str(),
+                count),
+  _numports(rigel::NUM_TILES), // FIXME: set dynamically
+  inports(_numports),
+  outports(_numports)
+{ 
+  // instantiate ports
+  // TODO: do elsewhere, and connect
+  for (int i = 0; i < inports.size(); i++) {
+    inports[i] = new InPortBase<Packet*>( PortName(name(), id(), "in", i) );
+  } 
+
+  for (int i = 0; i < outports.size(); i++) {
+    outports[i] = new OutPortBase<Packet*>( PortName(name(), id(), "out", i) );
+  }
+}
+