1346 lines
46 KiB
Python
1346 lines
46 KiB
Python
# Copyright (c) 2004 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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from __future__ import generators
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import os, re, sys, types, inspect
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from convert import *
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noDot = False
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try:
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import pydot
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except:
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noDot = True
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class Singleton(type):
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def __call__(cls, *args, **kwargs):
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if hasattr(cls, '_instance'):
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return cls._instance
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cls._instance = super(Singleton, cls).__call__(*args, **kwargs)
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return cls._instance
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#####################################################################
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#
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# M5 Python Configuration Utility
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#
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# The basic idea is to write simple Python programs that build Python
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# objects corresponding to M5 SimObjects for the deisred simulation
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# configuration. For now, the Python emits a .ini file that can be
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# parsed by M5. In the future, some tighter integration between M5
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# and the Python interpreter may allow bypassing the .ini file.
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#
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# Each SimObject class in M5 is represented by a Python class with the
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# same name. The Python inheritance tree mirrors the M5 C++ tree
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# (e.g., SimpleCPU derives from BaseCPU in both cases, and all
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# SimObjects inherit from a single SimObject base class). To specify
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# an instance of an M5 SimObject in a configuration, the user simply
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# instantiates the corresponding Python object. The parameters for
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# that SimObject are given by assigning to attributes of the Python
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# object, either using keyword assignment in the constructor or in
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# separate assignment statements. For example:
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#
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# cache = BaseCache('my_cache', root, size=64*K)
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# cache.hit_latency = 3
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# cache.assoc = 8
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#
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# (The first two constructor arguments specify the name of the created
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# cache and its parent node in the hierarchy.)
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#
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# The magic lies in the mapping of the Python attributes for SimObject
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# classes to the actual SimObject parameter specifications. This
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# allows parameter validity checking in the Python code. Continuing
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# the example above, the statements "cache.blurfl=3" or
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# "cache.assoc='hello'" would both result in runtime errors in Python,
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# since the BaseCache object has no 'blurfl' parameter and the 'assoc'
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# parameter requires an integer, respectively. This magic is done
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# primarily by overriding the special __setattr__ method that controls
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# assignment to object attributes.
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#
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# The Python module provides another class, ConfigNode, which is a
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# superclass of SimObject. ConfigNode implements the parent/child
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# relationship for building the configuration hierarchy tree.
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# Concrete instances of ConfigNode can be used to group objects in the
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# hierarchy, but do not correspond to SimObjects themselves (like a
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# .ini section with "children=" but no "type=".
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#
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# Once a set of Python objects have been instantiated in a hierarchy,
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# calling 'instantiate(obj)' (where obj is the root of the hierarchy)
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# will generate a .ini file. See simple-4cpu.py for an example
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# (corresponding to m5-test/simple-4cpu.ini).
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#
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#####################################################################
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#####################################################################
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#
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# ConfigNode/SimObject classes
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#
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# The Python class hierarchy rooted by ConfigNode (which is the base
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# class of SimObject, which in turn is the base class of all other M5
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# SimObject classes) has special attribute behavior. In general, an
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# object in this hierarchy has three categories of attribute-like
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# things:
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#
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# 1. Regular Python methods and variables. These must start with an
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# underscore to be treated normally.
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#
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# 2. SimObject parameters. These values are stored as normal Python
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# attributes, but all assignments to these attributes are checked
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# against the pre-defined set of parameters stored in the class's
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# _params dictionary. Assignments to attributes that do not
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# correspond to predefined parameters, or that are not of the correct
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# type, incur runtime errors.
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#
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# 3. Hierarchy children. The child nodes of a ConfigNode are stored
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# in the node's _children dictionary, but can be accessed using the
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# Python attribute dot-notation (just as they are printed out by the
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# simulator). Children cannot be created using attribute assigment;
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# they must be added by specifying the parent node in the child's
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# constructor or using the '+=' operator.
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# The SimObject parameters are the most complex, for a few reasons.
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# First, both parameter descriptions and parameter values are
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# inherited. Thus parameter description lookup must go up the
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# inheritance chain like normal attribute lookup, but this behavior
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# must be explicitly coded since the lookup occurs in each class's
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# _params attribute. Second, because parameter values can be set
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# on SimObject classes (to implement default values), the parameter
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# checking behavior must be enforced on class attribute assignments as
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# well as instance attribute assignments. Finally, because we allow
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# class specialization via inheritance (e.g., see the L1Cache class in
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# the simple-4cpu.py example), we must do parameter checking even on
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# class instantiation. To provide all these features, we use a
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# metaclass to define most of the SimObject parameter behavior for
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# this class hierarchy.
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#
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#####################################################################
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class Proxy(object):
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def __init__(self, path = ()):
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self._object = None
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self._path = path
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def __getattr__(self, attr):
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return Proxy(self._path + (attr, ))
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def __setattr__(self, attr, value):
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if not attr.startswith('_'):
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raise AttributeError, 'cannot set attribute %s' % attr
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super(Proxy, self).__setattr__(attr, value)
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def _convert(self):
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obj = self._object
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for attr in self._path:
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obj = obj.__getattribute__(attr)
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return obj
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Super = Proxy()
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def isSubClass(value, cls):
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try:
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return issubclass(value, cls)
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except:
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return False
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def isConfigNode(value):
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try:
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return issubclass(value, ConfigNode)
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except:
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return False
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def isSimObject(value):
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try:
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return issubclass(value, SimObject)
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except:
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return False
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def isSimObjSequence(value):
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if not isinstance(value, (list, tuple)):
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return False
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for val in value:
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if not isNullPointer(val) and not isConfigNode(val):
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return False
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return True
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def isParamContext(value):
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try:
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return issubclass(value, ParamContext)
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except:
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return False
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class_decorator = 'M5M5_SIMOBJECT_'
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expr_decorator = 'M5M5_EXPRESSION_'
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dot_decorator = '_M5M5_DOT_'
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# 'Global' map of legitimate types for SimObject parameters.
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param_types = {}
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# Dummy base class to identify types that are legitimate for SimObject
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# parameters.
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class ParamType(object):
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pass
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# Add types defined in given context (dict or module) that are derived
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# from ParamType to param_types map.
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def add_param_types(ctx):
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if isinstance(ctx, types.DictType):
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source_dict = ctx
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elif isinstance(ctx, types.ModuleType):
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source_dict = ctx.__dict__
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else:
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raise TypeError, \
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"m5.config.add_param_types requires dict or module as arg"
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for key,val in source_dict.iteritems():
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if isinstance(val, type) and issubclass(val, ParamType):
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param_types[key] = val
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# The metaclass for ConfigNode (and thus for everything that derives
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# from ConfigNode, including SimObject). This class controls how new
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# classes that derive from ConfigNode are instantiated, and provides
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# inherited class behavior (just like a class controls how instances
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# of that class are instantiated, and provides inherited instance
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# behavior).
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class MetaConfigNode(type):
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# Attributes that can be set only at initialization time
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init_keywords = {}
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# Attributes that can be set any time
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keywords = { 'check' : types.FunctionType,
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'children' : types.ListType }
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# __new__ is called before __init__, and is where the statements
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# in the body of the class definition get loaded into the class's
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# __dict__. We intercept this to filter out parameter assignments
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# and only allow "private" attributes to be passed to the base
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# __new__ (starting with underscore).
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def __new__(mcls, name, bases, dict):
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# Copy "private" attributes (including special methods such as __new__)
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# to the official dict. Everything else goes in _init_dict to be
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# filtered in __init__.
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cls_dict = {}
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for key,val in dict.items():
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if key.startswith('_'):
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cls_dict[key] = val
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del dict[key]
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cls_dict['_init_dict'] = dict
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return super(MetaConfigNode, mcls).__new__(mcls, name, bases, cls_dict)
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# initialization
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def __init__(cls, name, bases, dict):
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super(MetaConfigNode, cls).__init__(name, bases, dict)
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# initialize required attributes
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cls._params = {}
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cls._values = {}
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cls._param_types = {}
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cls._bases = [c for c in cls.__mro__ if isConfigNode(c)]
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cls._anon_subclass_counter = 0
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# If your parent has a value in it that's a config node, clone
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# it. Do this now so if we update any of the values'
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# attributes we are updating the clone and not the original.
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for base in cls._bases:
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for key,val in base._values.iteritems():
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# don't clone if (1) we're about to overwrite it with
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# a local setting or (2) we've already cloned a copy
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# from an earlier (more derived) base
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if cls._init_dict.has_key(key) or cls._values.has_key(key):
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continue
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if isConfigNode(val):
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cls._values[key] = val()
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elif isSimObjSequence(val):
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cls._values[key] = [ v() for v in val ]
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elif isNullPointer(val):
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cls._values[key] = val
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# process param types from _init_dict, as these may be needed
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# by param descriptions also in _init_dict
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for key,val in cls._init_dict.items():
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if isinstance(val, type) and issubclass(val, ParamType):
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cls._param_types[key] = val
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if not issubclass(val, ConfigNode):
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del cls._init_dict[key]
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# now process remaining _init_dict items
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for key,val in cls._init_dict.items():
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# param descriptions
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if isinstance(val, _Param):
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cls._params[key] = val
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# try to resolve local param types in local param_types scope
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val.maybe_resolve_type(cls._param_types)
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# init-time-only keywords
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elif cls.init_keywords.has_key(key):
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cls._set_keyword(key, val, cls.init_keywords[key])
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# See description of decorators in the importer.py file.
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# We just strip off the expr_decorator now since we don't
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# need from this point on.
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elif key.startswith(expr_decorator):
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key = key[len(expr_decorator):]
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# because it had dots into a list so that we can find the
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# proper variable to modify.
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key = key.split(dot_decorator)
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c = cls
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for item in key[:-1]:
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c = getattr(c, item)
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setattr(c, key[-1], val)
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# default: use normal path (ends up in __setattr__)
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else:
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setattr(cls, key, val)
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def _isvalue(cls, name):
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for c in cls._bases:
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if c._params.has_key(name):
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return True
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for c in cls._bases:
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if c._values.has_key(name):
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return True
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return False
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# generator that iterates across all parameters for this class and
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# all classes it inherits from
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def _getparams(cls):
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params = {}
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for c in cls._bases:
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for p,v in c._params.iteritems():
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if not params.has_key(p):
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params[p] = v
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return params
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# Lookup a parameter description by name in the given class.
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def _getparam(cls, name, default = AttributeError):
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for c in cls._bases:
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if c._params.has_key(name):
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return c._params[name]
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if isSubClass(default, Exception):
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raise default, \
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"object '%s' has no attribute '%s'" % (cls.__name__, name)
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else:
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return default
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def _hasvalue(cls, name):
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for c in cls._bases:
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if c._values.has_key(name):
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return True
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return False
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def _getvalues(cls):
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values = {}
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for i,c in enumerate(cls._bases):
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for p,v in c._values.iteritems():
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if not values.has_key(p):
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values[p] = v
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for p,v in c._params.iteritems():
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if not values.has_key(p) and hasattr(v, 'default'):
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try:
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v.valid(v.default)
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except TypeError:
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panic("Invalid default %s for param %s in node %s"
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% (v.default,p,cls.__name__))
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v = v.default
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cls._setvalue(p, v)
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values[p] = v
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return values
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def _getvalue(cls, name, default = AttributeError):
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value = None
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for c in cls._bases:
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if c._values.has_key(name):
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value = c._values[name]
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break
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if value is not None:
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return value
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param = cls._getparam(name, None)
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if param is not None and hasattr(param, 'default'):
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param.valid(param.default)
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value = param.default
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cls._setvalue(name, value)
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return value
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if isSubClass(default, Exception):
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raise default, 'value for %s not found' % name
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else:
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return default
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def _setvalue(cls, name, value):
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cls._values[name] = value
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def __getattr__(cls, attr):
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if cls._isvalue(attr):
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return Value(cls, attr)
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if attr == '_cpp_param_decl' and hasattr(cls, 'type'):
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return cls.type + '*'
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raise AttributeError, \
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"object '%s' has no attribute '%s'" % (cls.__name__, attr)
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def _set_keyword(cls, keyword, val, kwtype):
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if not isinstance(val, kwtype):
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raise TypeError, 'keyword %s has bad type %s (expecting %s)' % \
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(keyword, type(val), kwtype)
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if isinstance(val, types.FunctionType):
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val = classmethod(val)
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type.__setattr__(cls, keyword, val)
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# Set attribute (called on foo.attr = value when foo is an
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# instance of class cls).
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def __setattr__(cls, attr, value):
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# normal processing for private attributes
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|
if attr.startswith('_'):
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type.__setattr__(cls, attr, value)
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return
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|
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if cls.keywords.has_key(attr):
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cls._set_keyword(attr, value, cls.keywords[attr])
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return
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# must be SimObject param
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param = cls._getparam(attr, None)
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if param:
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# It's ok: set attribute by delegating to 'object' class.
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# Note the use of param.make_value() to verify/canonicalize
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# the assigned value
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try:
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param.valid(value)
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except:
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|
panic("Error setting param %s.%s to %s\n" % \
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(cls.__name__, attr, value))
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cls._setvalue(attr, value)
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elif isConfigNode(value) or isSimObjSequence(value):
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cls._setvalue(attr, value)
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|
else:
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raise AttributeError, \
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"Class %s has no parameter %s" % (cls.__name__, attr)
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|
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def add_child(cls, instance, name, child):
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if isNullPointer(child) or instance.top_child_names.has_key(name):
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return
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|
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if isinstance(child, (list, tuple)):
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kid = []
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for i,c in enumerate(child):
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n = '%s%d' % (name, i)
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k = c.instantiate(n, instance)
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instance.children.append(k)
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instance.child_names[n] = k
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instance.child_objects[c] = k
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kid.append(k)
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else:
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kid = child.instantiate(name, instance)
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instance.children.append(kid)
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instance.child_names[name] = kid
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instance.child_objects[child] = kid
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instance.top_child_names[name] = kid
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# Print instance info to .ini file.
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|
def instantiate(cls, name, parent = None):
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instance = Node(name, cls, parent, isParamContext(cls))
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|
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if hasattr(cls, 'check'):
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cls.check()
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|
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for key,value in cls._getvalues().iteritems():
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if isConfigNode(value):
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cls.add_child(instance, key, value)
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if isinstance(value, (list, tuple)):
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vals = [ v for v in value if isConfigNode(v) ]
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if len(vals):
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cls.add_child(instance, key, vals)
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|
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for pname,param in cls._getparams().iteritems():
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try:
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value = cls._getvalue(pname)
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except:
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panic('Error getting %s' % pname)
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|
|
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try:
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if isConfigNode(value):
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value = instance.child_objects[value]
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elif isinstance(value, (list, tuple)):
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v = []
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for val in value:
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if isConfigNode(val):
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v.append(instance.child_objects[val])
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else:
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v.append(val)
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value = v
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|
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p = NodeParam(pname, param, value)
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instance.params.append(p)
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instance.param_names[pname] = p
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except:
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print 'Exception while evaluating %s.%s' % \
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(instance.path, pname)
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raise
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|
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return instance
|
|
|
|
def _convert(cls, value):
|
|
realvalue = value
|
|
if isinstance(value, Node):
|
|
realvalue = value.realtype
|
|
|
|
if isinstance(realvalue, Proxy):
|
|
return value
|
|
|
|
if realvalue == None or isNullPointer(realvalue):
|
|
return value
|
|
|
|
if isSubClass(realvalue, cls):
|
|
return value
|
|
|
|
raise TypeError, 'object %s type %s wrong type, should be %s' % \
|
|
(repr(realvalue), realvalue, cls)
|
|
|
|
def _string(cls, value):
|
|
if isNullPointer(value):
|
|
return 'Null'
|
|
return Node._string(value)
|
|
|
|
# The ConfigNode class is the root of the special hierarchy. Most of
|
|
# the code in this class deals with the configuration hierarchy itself
|
|
# (parent/child node relationships).
|
|
class ConfigNode(object):
|
|
# Specify metaclass. Any class inheriting from ConfigNode will
|
|
# get this metaclass.
|
|
__metaclass__ = MetaConfigNode
|
|
|
|
def __new__(cls, **kwargs):
|
|
name = cls.__name__ + ("_%d" % cls._anon_subclass_counter)
|
|
cls._anon_subclass_counter += 1
|
|
return cls.__metaclass__(name, (cls, ), kwargs)
|
|
|
|
class ParamContext(ConfigNode):
|
|
pass
|
|
|
|
class MetaSimObject(MetaConfigNode):
|
|
# init_keywords and keywords are inherited from MetaConfigNode,
|
|
# with overrides/additions
|
|
init_keywords = MetaConfigNode.init_keywords
|
|
init_keywords.update({ 'abstract' : types.BooleanType,
|
|
'type' : types.StringType })
|
|
|
|
keywords = MetaConfigNode.keywords
|
|
# no additional keywords
|
|
|
|
cpp_classes = []
|
|
|
|
# initialization
|
|
def __init__(cls, name, bases, dict):
|
|
super(MetaSimObject, cls).__init__(name, bases, dict)
|
|
|
|
if hasattr(cls, 'type'):
|
|
if name == 'SimObject':
|
|
cls._cpp_base = None
|
|
elif hasattr(cls._bases[1], 'type'):
|
|
cls._cpp_base = cls._bases[1].type
|
|
else:
|
|
panic("SimObject %s derives from a non-C++ SimObject %s "\
|
|
"(no 'type')" % (cls, cls_bases[1].__name__))
|
|
|
|
# This class corresponds to a C++ class: put it on the global
|
|
# list of C++ objects to generate param structs, etc.
|
|
MetaSimObject.cpp_classes.append(cls)
|
|
|
|
def _cpp_decl(cls):
|
|
name = cls.__name__
|
|
code = ""
|
|
code += "\n".join([e.cpp_declare() for e in cls._param_types.values()])
|
|
code += "\n"
|
|
param_names = cls._params.keys()
|
|
param_names.sort()
|
|
code += "struct Params"
|
|
if cls._cpp_base:
|
|
code += " : public %s::Params" % cls._cpp_base
|
|
code += " {\n "
|
|
code += "\n ".join([cls._params[pname].cpp_decl(pname) \
|
|
for pname in param_names])
|
|
code += "\n};\n"
|
|
return code
|
|
|
|
class NodeParam(object):
|
|
def __init__(self, name, param, value):
|
|
self.name = name
|
|
self.param = param
|
|
self.ptype = param.ptype
|
|
self.convert = param.convert
|
|
self.string = param.string
|
|
self.value = value
|
|
|
|
class Node(object):
|
|
all = {}
|
|
def __init__(self, name, realtype, parent, paramcontext):
|
|
self.name = name
|
|
self.realtype = realtype
|
|
if isSimObject(realtype):
|
|
self.type = realtype.type
|
|
else:
|
|
self.type = None
|
|
self.parent = parent
|
|
self.children = []
|
|
self.child_names = {}
|
|
self.child_objects = {}
|
|
self.top_child_names = {}
|
|
self.params = []
|
|
self.param_names = {}
|
|
self.paramcontext = paramcontext
|
|
|
|
path = [ self.name ]
|
|
node = self.parent
|
|
while node is not None:
|
|
if node.name != 'root':
|
|
path.insert(0, node.name)
|
|
else:
|
|
assert(node.parent is None)
|
|
node = node.parent
|
|
self.path = '.'.join(path)
|
|
|
|
def find(self, realtype, path):
|
|
if not path:
|
|
if issubclass(self.realtype, realtype):
|
|
return self, True
|
|
|
|
obj = None
|
|
for child in self.children:
|
|
if issubclass(child.realtype, realtype):
|
|
if obj is not None:
|
|
raise AttributeError, \
|
|
'Super matched more than one: %s %s' % \
|
|
(obj.path, child.path)
|
|
obj = child
|
|
return obj, obj is not None
|
|
|
|
try:
|
|
obj = self
|
|
for node in path[:-1]:
|
|
obj = obj.child_names[node]
|
|
|
|
last = path[-1]
|
|
if obj.child_names.has_key(last):
|
|
value = obj.child_names[last]
|
|
if issubclass(value.realtype, realtype):
|
|
return value, True
|
|
elif obj.param_names.has_key(last):
|
|
value = obj.param_names[last]
|
|
realtype._convert(value.value)
|
|
return value.value, True
|
|
except KeyError:
|
|
pass
|
|
|
|
return None, False
|
|
|
|
def unproxy(self, ptype, value):
|
|
if not isinstance(value, Proxy):
|
|
return value
|
|
|
|
if value is None:
|
|
raise AttributeError, 'Error while fixing up %s' % self.path
|
|
|
|
obj = self
|
|
done = False
|
|
while not done:
|
|
if obj is None:
|
|
raise AttributeError, \
|
|
'Parent of %s type %s not found at path %s' \
|
|
% (self.name, ptype, value._path)
|
|
found, done = obj.find(ptype, value._path)
|
|
if isinstance(found, Proxy):
|
|
done = False
|
|
obj = obj.parent
|
|
|
|
return found
|
|
|
|
def fixup(self):
|
|
self.all[self.path] = self
|
|
|
|
for param in self.params:
|
|
ptype = param.ptype
|
|
pval = param.value
|
|
|
|
try:
|
|
if isinstance(pval, (list, tuple)):
|
|
param.value = [ self.unproxy(ptype, pv) for pv in pval ]
|
|
else:
|
|
param.value = self.unproxy(ptype, pval)
|
|
except:
|
|
print 'Error while fixing up %s:%s' % (self.path, param.name)
|
|
raise
|
|
|
|
for child in self.children:
|
|
assert(child != self)
|
|
child.fixup()
|
|
|
|
# print type and parameter values to .ini file
|
|
def display(self):
|
|
print '[' + self.path + ']' # .ini section header
|
|
|
|
if isSimObject(self.realtype):
|
|
print 'type = %s' % self.type
|
|
|
|
if self.children:
|
|
# instantiate children in same order they were added for
|
|
# backward compatibility (else we can end up with cpu1
|
|
# before cpu0). Changing ordering can also influence timing
|
|
# in the current memory system, as caches get added to a bus
|
|
# in different orders which affects their priority in the
|
|
# case of simulataneous requests. We should uncomment the
|
|
# following line once we take care of that issue.
|
|
# self.children.sort(lambda x,y: cmp(x.name, y.name))
|
|
children = [ c.name for c in self.children if not c.paramcontext]
|
|
print 'children =', ' '.join(children)
|
|
|
|
self.params.sort(lambda x,y: cmp(x.name, y.name))
|
|
for param in self.params:
|
|
try:
|
|
if param.value is None:
|
|
raise AttributeError, 'Parameter with no value'
|
|
|
|
value = param.convert(param.value)
|
|
string = param.string(value)
|
|
except:
|
|
print 'exception in %s:%s' % (self.path, param.name)
|
|
raise
|
|
|
|
print '%s = %s' % (param.name, string)
|
|
|
|
print
|
|
|
|
# recursively dump out children
|
|
for c in self.children:
|
|
c.display()
|
|
|
|
# print type and parameter values to .ini file
|
|
def outputDot(self, dot):
|
|
|
|
|
|
label = "{%s|" % self.path
|
|
if isSimObject(self.realtype):
|
|
label += '%s|' % self.type
|
|
|
|
if self.children:
|
|
# instantiate children in same order they were added for
|
|
# backward compatibility (else we can end up with cpu1
|
|
# before cpu0).
|
|
for c in self.children:
|
|
dot.add_edge(pydot.Edge(self.path,c.path, style="bold"))
|
|
|
|
simobjs = []
|
|
for param in self.params:
|
|
try:
|
|
if param.value is None:
|
|
raise AttributeError, 'Parameter with no value'
|
|
|
|
value = param.convert(param.value)
|
|
string = param.string(value)
|
|
except:
|
|
print 'exception in %s:%s' % (self.name, param.name)
|
|
raise
|
|
if isConfigNode(param.ptype) and string != "Null":
|
|
simobjs.append(string)
|
|
else:
|
|
label += '%s = %s\\n' % (param.name, string)
|
|
|
|
for so in simobjs:
|
|
label += "|<%s> %s" % (so, so)
|
|
dot.add_edge(pydot.Edge("%s:%s" % (self.path, so), so, tailport="w"))
|
|
label += '}'
|
|
dot.add_node(pydot.Node(self.path,shape="Mrecord",label=label))
|
|
|
|
# recursively dump out children
|
|
for c in self.children:
|
|
c.outputDot(dot)
|
|
|
|
def _string(cls, value):
|
|
if not isinstance(value, Node):
|
|
raise AttributeError, 'expecting %s got %s' % (Node, value)
|
|
return value.path
|
|
_string = classmethod(_string)
|
|
|
|
#####################################################################
|
|
#
|
|
# Parameter description classes
|
|
#
|
|
# The _params dictionary in each class maps parameter names to
|
|
# either a Param or a VectorParam object. These objects contain the
|
|
# parameter description string, the parameter type, and the default
|
|
# value (loaded from the PARAM section of the .odesc files). The
|
|
# _convert() method on these objects is used to force whatever value
|
|
# is assigned to the parameter to the appropriate type.
|
|
#
|
|
# Note that the default values are loaded into the class's attribute
|
|
# space when the parameter dictionary is initialized (in
|
|
# MetaConfigNode._setparams()); after that point they aren't used.
|
|
#
|
|
#####################################################################
|
|
|
|
def isNullPointer(value):
|
|
return isinstance(value, NullSimObject)
|
|
|
|
class Value(object):
|
|
def __init__(self, obj, attr):
|
|
super(Value, self).__setattr__('attr', attr)
|
|
super(Value, self).__setattr__('obj', obj)
|
|
|
|
def _getattr(self):
|
|
return self.obj._getvalue(self.attr)
|
|
|
|
def __setattr__(self, attr, value):
|
|
setattr(self._getattr(), attr, value)
|
|
|
|
def __getattr__(self, attr):
|
|
return getattr(self._getattr(), attr)
|
|
|
|
def __getitem__(self, index):
|
|
return self._getattr().__getitem__(index)
|
|
|
|
def __call__(self, *args, **kwargs):
|
|
return self._getattr().__call__(*args, **kwargs)
|
|
|
|
def __nonzero__(self):
|
|
return bool(self._getattr())
|
|
|
|
def __str__(self):
|
|
return str(self._getattr())
|
|
|
|
# Regular parameter.
|
|
class _Param(object):
|
|
def __init__(self, ptype, *args, **kwargs):
|
|
if isinstance(ptype, types.StringType):
|
|
self.ptype_string = ptype
|
|
elif isinstance(ptype, type):
|
|
self.ptype = ptype
|
|
else:
|
|
raise TypeError, "Param type is not a type (%s)" % ptype
|
|
|
|
if args:
|
|
if len(args) == 1:
|
|
self.desc = args[0]
|
|
elif len(args) == 2:
|
|
self.default = args[0]
|
|
self.desc = args[1]
|
|
else:
|
|
raise TypeError, 'too many arguments'
|
|
|
|
if kwargs.has_key('desc'):
|
|
assert(not hasattr(self, 'desc'))
|
|
self.desc = kwargs['desc']
|
|
del kwargs['desc']
|
|
|
|
if kwargs.has_key('default'):
|
|
assert(not hasattr(self, 'default'))
|
|
self.default = kwargs['default']
|
|
del kwargs['default']
|
|
|
|
if kwargs:
|
|
raise TypeError, 'extra unknown kwargs %s' % kwargs
|
|
|
|
if not hasattr(self, 'desc'):
|
|
raise TypeError, 'desc attribute missing'
|
|
|
|
def maybe_resolve_type(self, context):
|
|
# check if already resolved... don't use hasattr(),
|
|
# as that calls __getattr__()
|
|
if self.__dict__.has_key('ptype'):
|
|
return
|
|
try:
|
|
self.ptype = context[self.ptype_string]
|
|
except KeyError:
|
|
# no harm in trying... we'll try again later using global scope
|
|
pass
|
|
|
|
def __getattr__(self, attr):
|
|
if attr == 'ptype':
|
|
try:
|
|
self.ptype = param_types[self.ptype_string]
|
|
return self.ptype
|
|
except:
|
|
panic("undefined Param type %s" % self.ptype_string)
|
|
else:
|
|
raise AttributeError, "'%s' object has no attribute '%s'" % \
|
|
(type(self).__name__, attr)
|
|
|
|
def valid(self, value):
|
|
if not isinstance(value, Proxy):
|
|
self.ptype._convert(value)
|
|
|
|
def convert(self, value):
|
|
return self.ptype._convert(value)
|
|
|
|
def string(self, value):
|
|
return self.ptype._string(value)
|
|
|
|
def set(self, name, instance, value):
|
|
instance.__dict__[name] = value
|
|
|
|
def cpp_decl(self, name):
|
|
return '%s %s;' % (self.ptype._cpp_param_decl, name)
|
|
|
|
class _ParamProxy(object):
|
|
def __init__(self, type):
|
|
self.ptype = type
|
|
|
|
# E.g., Param.Int(5, "number of widgets")
|
|
def __call__(self, *args, **kwargs):
|
|
return _Param(self.ptype, *args, **kwargs)
|
|
|
|
# Strange magic to theoretically allow dotted names as Param classes,
|
|
# e.g., Param.Foo.Bar(...) to have a param of type Foo.Bar
|
|
def __getattr__(self, attr):
|
|
if attr == '__bases__':
|
|
raise AttributeError, ''
|
|
cls = type(self)
|
|
return cls(attr)
|
|
|
|
def __setattr__(self, attr, value):
|
|
if attr != 'ptype':
|
|
raise AttributeError, \
|
|
'Attribute %s not available in %s' % (attr, self.__class__)
|
|
super(_ParamProxy, self).__setattr__(attr, value)
|
|
|
|
|
|
Param = _ParamProxy(None)
|
|
|
|
# Vector-valued parameter description. Just like Param, except that
|
|
# the value is a vector (list) of the specified type instead of a
|
|
# single value.
|
|
class _VectorParam(_Param):
|
|
def __init__(self, type, *args, **kwargs):
|
|
_Param.__init__(self, type, *args, **kwargs)
|
|
|
|
def valid(self, value):
|
|
if value == None:
|
|
return True
|
|
|
|
if isinstance(value, (list, tuple)):
|
|
for val in value:
|
|
if not isinstance(val, Proxy):
|
|
self.ptype._convert(val)
|
|
elif not isinstance(value, Proxy):
|
|
self.ptype._convert(value)
|
|
|
|
# Convert assigned value to appropriate type. If the RHS is not a
|
|
# list or tuple, it generates a single-element list.
|
|
def convert(self, value):
|
|
if value == None:
|
|
return []
|
|
|
|
if isinstance(value, (list, tuple)):
|
|
# list: coerce each element into new list
|
|
return [ self.ptype._convert(v) for v in value ]
|
|
else:
|
|
# singleton: coerce & wrap in a list
|
|
return self.ptype._convert(value)
|
|
|
|
def string(self, value):
|
|
if isinstance(value, (list, tuple)):
|
|
return ' '.join([ self.ptype._string(v) for v in value])
|
|
else:
|
|
return self.ptype._string(value)
|
|
|
|
def cpp_decl(self, name):
|
|
return 'std::vector<%s> %s;' % (self.ptype._cpp_param_decl, name)
|
|
|
|
class _VectorParamProxy(_ParamProxy):
|
|
# E.g., VectorParam.Int(5, "number of widgets")
|
|
def __call__(self, *args, **kwargs):
|
|
return _VectorParam(self.ptype, *args, **kwargs)
|
|
|
|
VectorParam = _VectorParamProxy(None)
|
|
|
|
#####################################################################
|
|
#
|
|
# Parameter Types
|
|
#
|
|
# Though native Python types could be used to specify parameter types
|
|
# (the 'ptype' field of the Param and VectorParam classes), it's more
|
|
# flexible to define our own set of types. This gives us more control
|
|
# over how Python expressions are converted to values (via the
|
|
# __init__() constructor) and how these values are printed out (via
|
|
# the __str__() conversion method). Eventually we'll need these types
|
|
# to correspond to distinct C++ types as well.
|
|
#
|
|
#####################################################################
|
|
|
|
|
|
# Metaclass for bounds-checked integer parameters. See CheckedInt.
|
|
class CheckedIntType(type):
|
|
def __init__(cls, name, bases, dict):
|
|
super(CheckedIntType, cls).__init__(name, bases, dict)
|
|
|
|
# CheckedInt is an abstract base class, so we actually don't
|
|
# want to do any processing on it... the rest of this code is
|
|
# just for classes that derive from CheckedInt.
|
|
if name == 'CheckedInt':
|
|
return
|
|
|
|
if not (hasattr(cls, 'min') and hasattr(cls, 'max')):
|
|
if not (hasattr(cls, 'size') and hasattr(cls, 'unsigned')):
|
|
panic("CheckedInt subclass %s must define either\n" \
|
|
" 'min' and 'max' or 'size' and 'unsigned'\n" \
|
|
% name);
|
|
if cls.unsigned:
|
|
cls.min = 0
|
|
cls.max = 2 ** cls.size - 1
|
|
else:
|
|
cls.min = -(2 ** (cls.size - 1))
|
|
cls.max = (2 ** (cls.size - 1)) - 1
|
|
|
|
cls._cpp_param_decl = cls.cppname
|
|
|
|
def _convert(cls, value):
|
|
if isinstance(value, bool):
|
|
return int(value)
|
|
|
|
if not isinstance(value, (int, long, float, str)):
|
|
raise TypeError, 'Integer param of invalid type %s' % type(value)
|
|
|
|
if isinstance(value, (str, float)):
|
|
value = long(float(value))
|
|
|
|
if not cls.min <= value <= cls.max:
|
|
raise TypeError, 'Integer param out of bounds %d < %d < %d' % \
|
|
(cls.min, value, cls.max)
|
|
|
|
return value
|
|
|
|
def _string(cls, value):
|
|
return str(value)
|
|
|
|
# Abstract superclass for bounds-checked integer parameters. This
|
|
# class is subclassed to generate parameter classes with specific
|
|
# bounds. Initialization of the min and max bounds is done in the
|
|
# metaclass CheckedIntType.__init__.
|
|
class CheckedInt(ParamType):
|
|
__metaclass__ = CheckedIntType
|
|
|
|
class Int(CheckedInt): cppname = 'int'; size = 32; unsigned = False
|
|
class Unsigned(CheckedInt): cppname = 'unsigned'; size = 32; unsigned = True
|
|
|
|
class Int8(CheckedInt): cppname = 'int8_t'; size = 8; unsigned = False
|
|
class UInt8(CheckedInt): cppname = 'uint8_t'; size = 8; unsigned = True
|
|
class Int16(CheckedInt): cppname = 'int16_t'; size = 16; unsigned = False
|
|
class UInt16(CheckedInt): cppname = 'uint16_t'; size = 16; unsigned = True
|
|
class Int32(CheckedInt): cppname = 'int32_t'; size = 32; unsigned = False
|
|
class UInt32(CheckedInt): cppname = 'uint32_t'; size = 32; unsigned = True
|
|
class Int64(CheckedInt): cppname = 'int64_t'; size = 64; unsigned = False
|
|
class UInt64(CheckedInt): cppname = 'uint64_t'; size = 64; unsigned = True
|
|
|
|
class Counter(CheckedInt): cppname = 'Counter'; size = 64; unsigned = True
|
|
class Addr(CheckedInt): cppname = 'Addr'; size = 64; unsigned = True
|
|
class Tick(CheckedInt): cppname = 'Tick'; size = 64; unsigned = True
|
|
|
|
class Percent(CheckedInt): cppname = 'int'; min = 0; max = 100
|
|
|
|
class Pair(object):
|
|
def __init__(self, first, second):
|
|
self.first = first
|
|
self.second = second
|
|
|
|
class MetaRange(type):
|
|
def __init__(cls, name, bases, dict):
|
|
super(MetaRange, cls).__init__(name, bases, dict)
|
|
if name == 'Range':
|
|
return
|
|
cls._cpp_param_decl = 'Range<%s>' % cls.type._cpp_param_decl
|
|
|
|
def _convert(cls, value):
|
|
if not isinstance(value, Pair):
|
|
raise TypeError, 'value %s is not a Pair' % value
|
|
return Pair(cls.type._convert(value.first),
|
|
cls.type._convert(value.second))
|
|
|
|
def _string(cls, value):
|
|
return '%s:%s' % (cls.type._string(value.first),
|
|
cls.type._string(value.second))
|
|
|
|
class Range(ParamType):
|
|
__metaclass__ = MetaRange
|
|
|
|
def RangeSize(start, size):
|
|
return Pair(start, start + size - 1)
|
|
|
|
class AddrRange(Range): type = Addr
|
|
|
|
# Boolean parameter type.
|
|
class Bool(ParamType):
|
|
_cpp_param_decl = 'bool'
|
|
def _convert(value):
|
|
t = type(value)
|
|
if t == bool:
|
|
return value
|
|
|
|
if t == int or t == long:
|
|
return bool(value)
|
|
|
|
if t == str:
|
|
v = value.lower()
|
|
if v == "true" or v == "t" or v == "yes" or v == "y":
|
|
return True
|
|
elif v == "false" or v == "f" or v == "no" or v == "n":
|
|
return False
|
|
|
|
raise TypeError, 'Bool parameter (%s) of invalid type %s' % (v, t)
|
|
_convert = staticmethod(_convert)
|
|
|
|
def _string(value):
|
|
if value:
|
|
return "true"
|
|
else:
|
|
return "false"
|
|
_string = staticmethod(_string)
|
|
|
|
# String-valued parameter.
|
|
class String(ParamType):
|
|
_cpp_param_decl = 'string'
|
|
|
|
# Constructor. Value must be Python string.
|
|
def _convert(cls,value):
|
|
if value is None:
|
|
return ''
|
|
if isinstance(value, str):
|
|
return value
|
|
|
|
raise TypeError, \
|
|
"String param got value %s %s" % (repr(value), type(value))
|
|
_convert = classmethod(_convert)
|
|
|
|
# Generate printable string version. Not too tricky.
|
|
def _string(cls, value):
|
|
return value
|
|
_string = classmethod(_string)
|
|
|
|
|
|
def IncEthernetAddr(addr, val = 1):
|
|
bytes = map(lambda x: int(x, 16), addr.split(':'))
|
|
bytes[5] += val
|
|
for i in (5, 4, 3, 2, 1):
|
|
val,rem = divmod(bytes[i], 256)
|
|
bytes[i] = rem
|
|
if val == 0:
|
|
break
|
|
bytes[i - 1] += val
|
|
assert(bytes[0] <= 255)
|
|
return ':'.join(map(lambda x: '%02x' % x, bytes))
|
|
|
|
class NextEthernetAddr(object):
|
|
__metaclass__ = Singleton
|
|
addr = "00:90:00:00:00:01"
|
|
|
|
def __init__(self, inc = 1):
|
|
self.value = self.addr
|
|
self.addr = IncEthernetAddr(self.addr, inc)
|
|
|
|
class EthernetAddr(ParamType):
|
|
_cpp_param_decl = 'EthAddr'
|
|
|
|
def _convert(cls, value):
|
|
if value == NextEthernetAddr:
|
|
return value
|
|
|
|
if not isinstance(value, str):
|
|
raise TypeError, "expected an ethernet address and didn't get one"
|
|
|
|
bytes = value.split(':')
|
|
if len(bytes) != 6:
|
|
raise TypeError, 'invalid ethernet address %s' % value
|
|
|
|
for byte in bytes:
|
|
if not 0 <= int(byte) <= 256:
|
|
raise TypeError, 'invalid ethernet address %s' % value
|
|
|
|
return value
|
|
_convert = classmethod(_convert)
|
|
|
|
def _string(cls, value):
|
|
if value == NextEthernetAddr:
|
|
value = value().value
|
|
return value
|
|
_string = classmethod(_string)
|
|
|
|
# Special class for NULL pointers. Note the special check in
|
|
# make_param_value() above that lets these be assigned where a
|
|
# SimObject is required.
|
|
# only one copy of a particular node
|
|
class NullSimObject(object):
|
|
__metaclass__ = Singleton
|
|
|
|
def __call__(cls):
|
|
return cls
|
|
|
|
def _instantiate(self, parent = None, path = ''):
|
|
pass
|
|
|
|
def _convert(cls, value):
|
|
if value == Nxone:
|
|
return
|
|
|
|
if isinstance(value, cls):
|
|
return value
|
|
|
|
raise TypeError, 'object %s %s of the wrong type, should be %s' % \
|
|
(repr(value), type(value), cls)
|
|
_convert = classmethod(_convert)
|
|
|
|
def _string():
|
|
return 'NULL'
|
|
_string = staticmethod(_string)
|
|
|
|
# The only instance you'll ever need...
|
|
Null = NULL = NullSimObject()
|
|
|
|
# Enumerated types are a little more complex. The user specifies the
|
|
# type as Enum(foo) where foo is either a list or dictionary of
|
|
# alternatives (typically strings, but not necessarily so). (In the
|
|
# long run, the integer value of the parameter will be the list index
|
|
# or the corresponding dictionary value. For now, since we only check
|
|
# that the alternative is valid and then spit it into a .ini file,
|
|
# there's not much point in using the dictionary.)
|
|
|
|
# What Enum() must do is generate a new type encapsulating the
|
|
# provided list/dictionary so that specific values of the parameter
|
|
# can be instances of that type. We define two hidden internal
|
|
# classes (_ListEnum and _DictEnum) to serve as base classes, then
|
|
# derive the new type from the appropriate base class on the fly.
|
|
|
|
|
|
# Metaclass for Enum types
|
|
class MetaEnum(type):
|
|
|
|
def __init__(cls, name, bases, init_dict):
|
|
if init_dict.has_key('map'):
|
|
if not isinstance(cls.map, dict):
|
|
raise TypeError, "Enum-derived class attribute 'map' " \
|
|
"must be of type dict"
|
|
# build list of value strings from map
|
|
cls.vals = cls.map.keys()
|
|
cls.vals.sort()
|
|
elif init_dict.has_key('vals'):
|
|
if not isinstance(cls.vals, list):
|
|
raise TypeError, "Enum-derived class attribute 'vals' " \
|
|
"must be of type list"
|
|
# build string->value map from vals sequence
|
|
cls.map = {}
|
|
for idx,val in enumerate(cls.vals):
|
|
cls.map[val] = idx
|
|
else:
|
|
raise TypeError, "Enum-derived class must define "\
|
|
"attribute 'map' or 'vals'"
|
|
|
|
cls._cpp_param_decl = name
|
|
|
|
super(MetaEnum, cls).__init__(name, bases, init_dict)
|
|
|
|
def cpp_declare(cls):
|
|
s = 'enum %s {\n ' % cls.__name__
|
|
s += ',\n '.join(['%s = %d' % (v,cls.map[v]) for v in cls.vals])
|
|
s += '\n};\n'
|
|
return s
|
|
|
|
# Base class for enum types.
|
|
class Enum(ParamType):
|
|
__metaclass__ = MetaEnum
|
|
vals = []
|
|
|
|
def _convert(self, value):
|
|
if value not in self.map:
|
|
raise TypeError, "Enum param got bad value '%s' (not in %s)" \
|
|
% (value, self.vals)
|
|
return value
|
|
_convert = classmethod(_convert)
|
|
|
|
# Generate printable string version of value.
|
|
def _string(self, value):
|
|
return str(value)
|
|
_string = classmethod(_string)
|
|
#
|
|
# "Constants"... handy aliases for various values.
|
|
#
|
|
|
|
# Some memory range specifications use this as a default upper bound.
|
|
MAX_ADDR = Addr.max
|
|
MaxTick = Tick.max
|
|
|
|
# For power-of-two sizing, e.g. 64*K gives an integer value 65536.
|
|
K = 1024
|
|
M = K*K
|
|
G = K*M
|
|
|
|
#####################################################################
|
|
|
|
# The final hook to generate .ini files. Called from configuration
|
|
# script once config is built.
|
|
def instantiate(root):
|
|
instance = root.instantiate('root')
|
|
instance.fixup()
|
|
instance.display()
|
|
if not noDot:
|
|
dot = pydot.Dot()
|
|
instance.outputDot(dot)
|
|
dot.orientation = "portrait"
|
|
dot.size = "8.5,11"
|
|
dot.ranksep="equally"
|
|
dot.rank="samerank"
|
|
dot.write("config.dot")
|
|
dot.write_ps("config.ps")
|
|
|
|
# SimObject is a minimal extension of ConfigNode, implementing a
|
|
# hierarchy node that corresponds to an M5 SimObject. It prints out a
|
|
# "type=" line to indicate its SimObject class, prints out the
|
|
# assigned parameters corresponding to its class, and allows
|
|
# parameters to be set by keyword in the constructor. Note that most
|
|
# of the heavy lifting for the SimObject param handling is done in the
|
|
# MetaConfigNode metaclass.
|
|
class SimObject(ConfigNode, ParamType):
|
|
__metaclass__ = MetaSimObject
|
|
type = 'SimObject'
|
|
|
|
|
|
# __all__ defines the list of symbols that get exported when
|
|
# 'from config import *' is invoked. Try to keep this reasonably
|
|
# short to avoid polluting other namespaces.
|
|
__all__ = ['ConfigNode', 'SimObject', 'ParamContext', 'Param', 'VectorParam',
|
|
'Super', 'Enum',
|
|
'Int', 'Unsigned', 'Int8', 'UInt8', 'Int16', 'UInt16',
|
|
'Int32', 'UInt32', 'Int64', 'UInt64',
|
|
'Counter', 'Addr', 'Tick', 'Percent',
|
|
'Pair', 'RangeSize', 'AddrRange', 'MAX_ADDR', 'NULL', 'K', 'M',
|
|
'NextEthernetAddr',
|
|
'instantiate']
|