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# Copyright (c) 2012 Advanced Micro Devices, Inc.
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import m5
class BaseTopology(object):
description = "BaseTopology"
def __init__(self):
""" When overriding place any objects created in
configs/ruby/<protocol>.py that are needed in
makeTopology (below) here. The minimum is usually
all of the controllers created in the above file.
"""
def makeTopology(self, options, network, IntLink, ExtLink, Router):
""" Called from configs/ruby/Ruby.py
The return value is ( list(Router), list(IntLink), list(ExtLink))
The API of this function cannot change when subclassing!!
Any additional information needed to create this topology should
be passed into the constructor when it's instantiated in
configs/ruby/<protocol>.py
"""
m5.util.fatal("BaseTopology should have been overridden!!")
def registerTopology(self, options):
""" Called from configs/ruby/Ruby.py
There is no return value. This should only be called in
SE mode. It is used by some topology objects to populate
the faux filesystem with accurate file contents.
No need to implement if not using FilesystemRegister
functionality.
"""
class SimpleTopology(BaseTopology):
""" Provides methods needed for the topologies included in Ruby before
topology changes.
These topologies are "simple" in the sense that they only use a flat
list of controllers to construct the topology.
"""
description = "SimpleTopology"
def __init__(self, controllers):
self.nodes = controllers
def addController(self, controller):
self.nodes.append(controller)
def __len__(self):
return len(self.nodes)