Pt2Pt.py revision 8292 
1# Copyright (c) 2011 Advanced Micro Devices, Inc.
2#               2011 Massachusetts Institute of Technology
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions are
7# met: redistributions of source code must retain the above copyright
8# notice, this list of conditions and the following disclaimer;
9# redistributions in binary form must reproduce the above copyright
10# notice, this list of conditions and the following disclaimer in the
11# documentation and/or other materials provided with the distribution;
12# neither the name of the copyright holders nor the names of its
13# contributors may be used to endorse or promote products derived from
14# this software without specific prior written permission.
15#
16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27#
28# Authors: Brad Beckmann
29#          Tushar Krishna
30
31from m5.params import *
32from m5.objects import *
33
34class Pt2Pt(Topology):
35    description='Pt2Pt'
36
37def makeTopology(nodes, options, IntLink, ExtLink, Router):
38    # Create an individual router for each controller, and connect all to all.
39    routers = [Router(router_id=i) for i in range(len(nodes))]
40    ext_links = [ExtLink(link_id=i, ext_node=n, int_node=routers[i])
41                 for (i, n) in enumerate(nodes)]
42    link_count = len(nodes)
43
44    int_links = []
45    for i in xrange(len(nodes)):
46        for j in xrange(len(nodes)):
47            if (i != j):
48                link_count += 1
49                int_links.append(IntLink(link_id=link_count,
50                                         node_a=routers[i],
51                                         node_b=routers[j]))
52
53    return Pt2Pt(ext_links=ext_links,
54                 int_links=int_links,
55                 routers=routers)
56