configs/topologies/CrossbarGarnet.py

   1 # Copyright (c) 2016 Georgia Institute of Technology
   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
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   9 # notice, this list of conditions and the following disclaimer in the
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  11 # neither the name of the copyright holders nor the names of its
  12 # contributors may be used to endorse or promote products derived from
  13 # this software without specific prior written permission.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  25 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26
  27 from __future__ import print_function
  28 from __future__ import absolute_import
  29
  30 from m5.params import *
  31 from m5.objects import *
  32
  33 from topologies.BaseTopology import SimpleTopology
  34
  35 class CrossbarGarnet(SimpleTopology):
  36     description='CrossbarGarnet'
  37
  38     def makeTopology(self, options, network, IntLink, ExtLink, Router):
  39         # Create one router in Garnet. Internally models a crossbar and
  40         # the associated allocator.
  41         # For simple network, use Crossbar.py
  42
  43         xbar = Router(router_id=0)
  44         network.routers = xbar
  45
  46         ext_links = [ExtLink(link_id=i, ext_node=n, int_node=xbar)
  47                         for (i, n) in enumerate(self.nodes)]
  48         network.ext_links = ext_links
  49
  50         int_links = []
  51         network.int_links = int_links