diff options
author | Andreas Sandberg <andreas.sandberg@arm.com> | 2015-12-04 00:19:05 +0000 |
---|---|---|
committer | Andreas Sandberg <andreas.sandberg@arm.com> | 2015-12-04 00:19:05 +0000 |
commit | 6a05179e13a2ac8e72feb4bd00647013940d814e (patch) | |
tree | 92387dfcdde62731e981bfb5c40fb9c93049fcca /configs/common/PlatformConfig.py | |
parent | b3f7a628760eaf27dd4842fad1cca1517478aa73 (diff) | |
download | gem5-6a05179e13a2ac8e72feb4bd00647013940d814e.tar.xz |
arm, config: Automatically discover available platforms
Add support for automatically discover available platforms. The
Python-side uses functionality similar to what we use when
auto-detecting available CPU models. The machine IDs have been updated
to match the platform configurations. If there isn't a matching
machine ID, the configuration scripts default to -1 which Linux uses
for device tree only platforms.
Diffstat (limited to 'configs/common/PlatformConfig.py')
-rw-r--r-- | configs/common/PlatformConfig.py | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/configs/common/PlatformConfig.py b/configs/common/PlatformConfig.py new file mode 100644 index 000000000..636e6d8ac --- /dev/null +++ b/configs/common/PlatformConfig.py @@ -0,0 +1,109 @@ +# Copyright (c) 2012, 2015 ARM Limited +# All rights reserved. +# +# The license below extends only to copyright in the software and shall +# not be construed as granting a license to any other intellectual +# property including but not limited to intellectual property relating +# to a hardware implementation of the functionality of the software +# licensed hereunder. You may use the software subject to the license +# terms below provided that you ensure that this notice is replicated +# unmodified and in its entirety in all distributions of the software, +# modified or unmodified, in source code or in binary form. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer; +# redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution; +# neither the name of the copyright holders nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +# +# Authors: Andreas Sandberg + +import m5.objects +import inspect +import sys +from textwrap import TextWrapper + +# Dictionary of mapping names of real CPU models to classes. +_platform_classes = {} + +# Platform aliases. The platforms listed here might not be compiled, +# we make sure they exist before we add them to the platform list. +_platform_aliases_all = [ + ("RealView_EB", "RealViewEB"), + ("RealView_PBX", "RealViewPBX"), + ] + +# Filtered list of aliases. Only aliases for existing platforms exist +# in this list. +_platform_aliases = {} + +def is_platform_class(cls): + """Determine if a class is a Platform that can be instantiated""" + + # We can't use the normal inspect.isclass because the ParamFactory + # and ProxyFactory classes have a tendency to confuse it. + try: + return issubclass(cls, m5.objects.Platform) and \ + not cls.abstract + except TypeError: + return False + +def get(name): + """Get a platform class from a user provided class name.""" + + real_name = _platform_aliases.get(name, name) + + try: + return _platform_classes[real_name] + except KeyError: + print "%s is not a valid Platform model." % (name,) + sys.exit(1) + +def print_platform_list(): + """Print a list of available Platform classes including their aliases.""" + + print "Available Platform classes:" + doc_wrapper = TextWrapper(initial_indent="\t\t", subsequent_indent="\t\t") + for name, cls in _platform_classes.items(): + print "\t%s" % name + + # Try to extract the class documentation from the class help + # string. + doc = inspect.getdoc(cls) + if doc: + for line in doc_wrapper.wrap(doc): + print line + + if _platform_aliases: + print "\Platform aliases:" + for alias, target in _platform_aliases.items(): + print "\t%s => %s" % (alias, target) + +def platform_names(): + """Return a list of valid Platform names.""" + return _platform_classes.keys() + _platform_aliases.keys() + +# Add all Platforms in the object hierarchy. +for name, cls in inspect.getmembers(m5.objects, is_platform_class): + _platform_classes[name] = cls + +for alias, target in _platform_aliases_all: + if target in _platform_classes: + _platform_aliases[alias] = target |