1# Copyright (c) 2010 Advanced Micro Devices, Inc. 2# All rights reserved. 3# 4# Redistribution and use in source and binary forms, with or without 5# modification, are permitted provided that the following conditions are 6# met: redistributions of source code must retain the above copyright 7# notice, this list of conditions and the following disclaimer; 8# redistributions in binary form must reproduce the above copyright --- 20 unchanged lines hidden (view full) --- 29from m5.params import * 30from m5.objects import * 31 32from BaseTopology import SimpleTopology 33 34class Crossbar(SimpleTopology): 35 description='Crossbar' 36 |
37 def makeTopology(self, options, network, IntLink, ExtLink, Router): 38 # Create an individual router for each controller plus one more for 39 # the centralized crossbar. The large numbers of routers are needed 40 # because external links do not model outgoing bandwidth in the 41 # simple network, but internal links do. |
42 43 routers = [Router(router_id=i) for i in range(len(self.nodes)+1)] |
44 xbar = routers[len(self.nodes)] # the crossbar router is the last router created 45 network.routers = routers 46 |
47 ext_links = [ExtLink(link_id=i, ext_node=n, int_node=routers[i]) 48 for (i, n) in enumerate(self.nodes)] |
49 network.ext_links = ext_links 50 |
51 link_count = len(self.nodes) |
52 int_links = [IntLink(link_id=(link_count+i), 53 node_a=routers[i], node_b=xbar) 54 for i in range(len(self.nodes))] |
55 network.int_links = int_links |