BPConfig.py (13774:a1be2a0c55f2) BPConfig.py (13958:1945df12e5b0)
1# Copyright (c) 2018 Metempsy Technology Consulting
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
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
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
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Pau Cabre
28
29# This file is a copy of MemConfig.py / CpuConfig.py, but modified to
30# hanle branch predictors instead of memory controllers / CPUs
31
32from __future__ import print_function
33from __future__ import absolute_import
34
35from m5 import fatal
36import m5.objects
37import inspect
38import sys
39from textwrap import TextWrapper
40
41# Dictionary of mapping names of real branch predictor models to classes.
42_bp_classes = {}
43
44
45def is_bp_class(cls):
46 """Determine if a class is a branch predictor that can be instantiated"""
47
48 # We can't use the normal inspect.isclass because the ParamFactory
49 # and ProxyFactory classes have a tendency to confuse it.
50 try:
51 return issubclass(cls, m5.objects.BranchPredictor) and \
52 not cls.abstract
53 except (TypeError, AttributeError):
54 return False
55
56def get(name):
57 """Get a BP class from a user provided class name or alias."""
58
59 try:
60 bp_class = _bp_classes[name]
61 return bp_class
62 except KeyError:
63 print("%s is not a valid BP model." % (name,))
64 sys.exit(1)
65
66def print_bp_list():
67 """Print a list of available BP classes."""
68
69 print("Available BranchPredictor classes:")
70 doc_wrapper = TextWrapper(initial_indent="\t\t", subsequent_indent="\t\t")
71 for name, cls in _bp_classes.items():
72 print("\t%s" % name)
73
74 # Try to extract the class documentation from the class help
75 # string.
76 doc = inspect.getdoc(cls)
77 if doc:
78 for line in doc_wrapper.wrap(doc):
79 print(line)
80
81def bp_names():
82 """Return a list of valid Branch Predictor names."""
83 return list(_bp_classes.keys())
84
85# Add all BPs in the object hierarchy.
86for name, cls in inspect.getmembers(m5.objects, is_bp_class):
87 _bp_classes[name] = cls
88
1# Copyright (c) 2018 Metempsy Technology Consulting
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
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
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
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Pau Cabre
28
29# This file is a copy of MemConfig.py / CpuConfig.py, but modified to
30# hanle branch predictors instead of memory controllers / CPUs
31
32from __future__ import print_function
33from __future__ import absolute_import
34
35from m5 import fatal
36import m5.objects
37import inspect
38import sys
39from textwrap import TextWrapper
40
41# Dictionary of mapping names of real branch predictor models to classes.
42_bp_classes = {}
43
44
45def is_bp_class(cls):
46 """Determine if a class is a branch predictor that can be instantiated"""
47
48 # We can't use the normal inspect.isclass because the ParamFactory
49 # and ProxyFactory classes have a tendency to confuse it.
50 try:
51 return issubclass(cls, m5.objects.BranchPredictor) and \
52 not cls.abstract
53 except (TypeError, AttributeError):
54 return False
55
56def get(name):
57 """Get a BP class from a user provided class name or alias."""
58
59 try:
60 bp_class = _bp_classes[name]
61 return bp_class
62 except KeyError:
63 print("%s is not a valid BP model." % (name,))
64 sys.exit(1)
65
66def print_bp_list():
67 """Print a list of available BP classes."""
68
69 print("Available BranchPredictor classes:")
70 doc_wrapper = TextWrapper(initial_indent="\t\t", subsequent_indent="\t\t")
71 for name, cls in _bp_classes.items():
72 print("\t%s" % name)
73
74 # Try to extract the class documentation from the class help
75 # string.
76 doc = inspect.getdoc(cls)
77 if doc:
78 for line in doc_wrapper.wrap(doc):
79 print(line)
80
81def bp_names():
82 """Return a list of valid Branch Predictor names."""
83 return list(_bp_classes.keys())
84
85# Add all BPs in the object hierarchy.
86for name, cls in inspect.getmembers(m5.objects, is_bp_class):
87 _bp_classes[name] = cls
88
89
90# The same for indirect branch predictors...
91# Dictionary of mapping names of real branch predictor models to classes.
92_indirect_bp_classes = {}
93
94
95def is_indirect_bp_class(cls):
96 """Determine if a class is an indirect branch predictor that can be
97 instantiated"""
98
99 # We can't use the normal inspect.isclass because the ParamFactory
100 # and ProxyFactory classes have a tendency to confuse it.
101 try:
102 return issubclass(cls, m5.objects.IndirectPredictor) and \
103 not cls.abstract
104 except (TypeError, AttributeError):
105 return False
106
107def get_indirect(name):
108 """Get an Indirect BP class from a user provided class name or alias."""
109
110 try:
111 indirect_bp_class = _indirect_bp_classes[name]
112 return indirect_bp_class
113 except KeyError:
114 print("%s is not a valid indirect BP model." % (name,))
115 sys.exit(1)
116
117def print_indirect_bp_list():
118 """Print a list of available indirect BP classes."""
119
120 print("Available Indirect BranchPredictor classes:")
121 doc_wrapper = TextWrapper(initial_indent="\t\t", subsequent_indent="\t\t")
122 for name, cls in _indirect_bp_classes.items():
123 print("\t%s" % name)
124
125 # Try to extract the class documentation from the class help
126 # string.
127 doc = inspect.getdoc(cls)
128 if doc:
129 for line in doc_wrapper.wrap(doc):
130 print(line)
131
132def indirect_bp_names():
133 """Return a list of valid Indirect Branch Predictor names."""
134 return _indirect_bp_classes.keys()
135
136# Add all indirect BPs in the object hierarchy.
137for name, cls in inspect.getmembers(m5.objects, is_indirect_bp_class):
138 _indirect_bp_classes[name] = cls
139