Partial reimplementation of the bus. The "clock" and "width" parameters have been added, and the HasData flag has been partially added to packets.

--HG--
extra : convert_revision : abb2a259fcf843457abbc0bd36f9504fbe6d7d39

src/python/m5/objects/Bus.py

@@ -6,3 +6,5 @@ class Bus(MemObject):
     port = VectorPort("vector port for connecting devices")
     default = Port("Default port for requests that aren't handeled by a device.")
     bus_id = Param.Int(0, "blah")
+    clock = Param.Clock("1GHz", "bus clock speed")
+    width = Param.Int(64, "bus width (bits)")