derek/gem5
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

AddrRange: Simplify AddrRange params Python hierarchy

Browse Source 
This patch simplifies the Range object hierarchy in preparation for an
address range class that also allows striping (e.g. selecting a few
bits as matching in addition to the range).

To extend the AddrRange class to an AddrRegion, the first step is to
simplify the hierarchy such that we can make it as lean as possible
before adding the new functionality. The only class using Range and
MetaRange is AddrRange, and the three classes are now collapsed into
one.
This commit is contained in:
Andreas Hansson
2012-09-19 06:15:41 -04:00
parent 33c904e0a5
commit fccbf8bb45
9 changed files with 43 additions and 70 deletions
Download Patch File Download Diff File Expand all files Collapse all files

66
src/python/m5/params.py
View File

@@ -549,86 +549,64 @@ class Addr(CheckedInt):
else:
return self.value + other
class AddrRange(ParamValue):
cxx_type = 'Range<Addr>'
class MetaRange(MetaParamValue):
def __init__(cls, name, bases, dict):
super(MetaRange, cls).__init__(name, bases, dict)
if name == 'Range':
return
cls.cxx_type = 'Range< %s >' % cls.type.cxx_type
class Range(ParamValue):
__metaclass__ = MetaRange
type = Int # default; can be overridden in subclasses
def __init__(self, *args, **kwargs):
def handle_kwargs(self, kwargs):
if 'end' in kwargs:
self.second = self.type(kwargs.pop('end'))
self.end = Addr(kwargs.pop('end'))
elif 'size' in kwargs:
self.second = self.first + self.type(kwargs.pop('size')) - 1
self.end = self.start + Addr(kwargs.pop('size')) - 1
else:
raise TypeError, "Either end or size must be specified"
if len(args) == 0:
self.first = self.type(kwargs.pop('start'))
self.start = Addr(kwargs.pop('start'))
handle_kwargs(self, kwargs)
elif len(args) == 1:
if kwargs:
self.first = self.type(args[0])
self.start = Addr(args[0])
handle_kwargs(self, kwargs)
elif isinstance(args[0], Range):
self.first = self.type(args[0].first)
self.second = self.type(args[0].second)
elif isinstance(args[0], (list, tuple)):
self.first = self.type(args[0][0])
self.second = self.type(args[0][1])
self.start = Addr(args[0][0])
self.end = Addr(args[0][1])
else:
self.first = self.type(0)
self.second = self.type(args[0]) - 1
self.start = Addr(0)
self.end = Addr(args[0]) - 1
elif len(args) == 2:
self.first = self.type(args[0])
self.second = self.type(args[1])
self.start = Addr(args[0])
self.end = Addr(args[1])
else:
raise TypeError, "Too many arguments specified"
if kwargs:
raise TypeError, "too many keywords: %s" % kwargs.keys()
raise TypeError, "Too many keywords: %s" % kwargs.keys()
def __str__(self):
return '%s:%s' % (self.first, self.second)
return '%s:%s' % (self.start, self.end)
def size(self):
return long(self.end) - long(self.start) + 1
@classmethod
def cxx_predecls(cls, code):
cls.type.cxx_predecls(code)
Addr.cxx_predecls(code)
code('#include "base/range.hh"')
@classmethod
def swig_predecls(cls, code):
cls.type.swig_predecls(code)
Addr.swig_predecls(code)
code('%import "python/swig/range.i"')
class AddrRange(Range):
type = Addr
def getValue(self):
from m5.internal.range import AddrRange
value = AddrRange()
value.start = long(self.first)
value.end = long(self.second)
return value
class TickRange(Range):
type = Tick
def getValue(self):
from m5.internal.range import TickRange
value = TickRange()
value.start = long(self.first)
value.end = long(self.second)
value.start = long(self.start)
value.end = long(self.end)
return value
# Boolean parameter type. Python doesn't let you subclass bool, since
@@ -1643,7 +1621,7 @@ __all__ = ['Param', 'VectorParam',
'MemorySize', 'MemorySize32',
'Latency', 'Frequency', 'Clock',
'NetworkBandwidth', 'MemoryBandwidth',
'Range', 'AddrRange', 'TickRange',
'AddrRange',
'MaxAddr', 'MaxTick', 'AllMemory',
'Time',
'NextEthernetAddr', 'NULL',