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

Standardize clock parameter names to 'clock'.

Browse Source 
Fix description for Bus clock_ratio (no longer a ratio).
Add Clock param type (generic Frequency or Latency).

cpu/base_cpu.cc:
cpu/base_cpu.hh:
cpu/beta_cpu/alpha_full_cpu_builder.cc:
cpu/simple_cpu/simple_cpu.cc:
dev/ide_ctrl.cc:
dev/ns_gige.cc:
dev/ns_gige.hh:
dev/pciconfigall.cc:
dev/sinic.cc:
dev/tsunami_cchip.cc:
dev/tsunami_io.cc:
dev/tsunami_pchip.cc:
dev/uart.cc:
python/m5/objects/BaseCPU.py:
python/m5/objects/BaseCache.py:
python/m5/objects/BaseSystem.py:
python/m5/objects/Bus.py:
python/m5/objects/Ethernet.py:
python/m5/objects/Root.py:
sim/universe.cc:
    Standardize clock parameter names to 'clock'.
    Fix description for Bus clock_ratio (no longer a ratio).
python/m5/config.py:
    Minor tweaks on Frequency/Latency:
    - added new Clock param type to avoid ambiguities
    - factored out init code into getLatency()
    - made RootFrequency *not* a subclass of Frequency so it
    can't be directly assigned to a Frequency paremeter

--HG--
extra : convert_revision : fc4bb8562df171b454bbf696314cda57e1ec8506
This commit is contained in:
Steve Reinhardt
2005-06-01 21:44:00 -04:00
parent 3304da9270
commit 8031cd93b5
21 changed files with 105 additions and 88 deletions
Download Patch File Download Diff File Expand all files Collapse all files

113
python/m5/config.py
View File

@@ -1096,12 +1096,20 @@ def tick_check(float_ticks):
err = (float_ticks - int_ticks) / float_ticks
if err > frequency_tolerance:
print >> sys.stderr, "Warning: rounding error > tolerance"
print >> sys.stderr, " %f rounded to %d" % (float_ticks, int_ticks)
#raise ValueError
return int_ticks
# superclass for "numeric" parameter values, to emulate math
# operations in a type-safe way. e.g., a Latency times an int returns
# a new Latency object.
class NumericParamValue(ParamValue):
def __str__(self):
return str(self.value)
def __float__(self):
return float(self.value)
def __mul__(self, other):
newobj = self.__class__(self)
newobj.value *= other
@@ -1109,27 +1117,31 @@ class NumericParamValue(ParamValue):
__rmul__ = __mul__
def __div__(self, other):
newobj = self.__class__(self)
newobj.value /= other
return newobj
def getLatency(value):
if isinstance(value, Latency) or isinstance(value, Clock):
return value.value
elif isinstance(value, Frequency) or isinstance(value, RootClock):
return 1 / value.value
elif isinstance(value, str):
try:
return toLatency(value)
except ValueError:
try:
return 1 / toFrequency(value)
except ValueError:
pass # fall through
raise ValueError, "Invalid Frequency/Latency value '%s'" % value
class Latency(NumericParamValue):
def __init__(self, value):
if isinstance(value, Latency):
self.value = value.value
elif isinstance(value, Frequency):
self.value = 1 / value.value
elif isinstance(value, str):
try:
self.value = toLatency(value)
except ValueError:
try:
freq = toFrequency(value)
except ValueError:
raise ValueError, "Latency value '%s' is neither " \
"frequency nor period" % value
self.value = 1 / freq
elif value == 0:
# the one unitless value that's OK...
self.value = value
else:
raise ValueError, "Invalid Latency value '%s'" % value
self.value = getLatency(value)
def __getattr__(self, attr):
if attr in ('latency', 'period'):
@@ -1138,31 +1150,13 @@ class Latency(NumericParamValue):
return Frequency(self)
raise AttributeError, "Latency object has no attribute '%s'" % attr
def __str__(self):
return str(self.value)
# convert latency to ticks
def ini_str(self):
return str(tick_check(self.value * ticks_per_sec))
class Frequency(NumericParamValue):
def __init__(self, value):
if isinstance(value, Frequency):
self.value = value.value
elif isinstance(value, Latency):
self.value = 1 / value.value
elif isinstance(value, str):
try:
self.value = toFrequency(value)
except ValueError:
try:
freq = toLatency(value)
except ValueError:
raise ValueError, "Frequency value '%s' is neither " \
"frequency nor period" % value
self.value = 1 / freq
else:
raise ValueError, "Invalid Frequency value '%s'" % value
self.value = 1 / getLatency(value)
def __getattr__(self, attr):
if attr == 'frequency':
@@ -1171,21 +1165,44 @@ class Frequency(NumericParamValue):
return Latency(self)
raise AttributeError, "Frequency object has no attribute '%s'" % attr
def __str__(self):
return str(self.value)
def __float__(self):
return float(self.value)
# convert frequency to ticks per period
def ini_str(self):
return self.period.ini_str()
# Just like Frequency, except ini_str() is absolute # of ticks per sec (Hz)
class RootFrequency(Frequency):
# Just like Frequency, except ini_str() is absolute # of ticks per sec (Hz).
# We can't inherit from Frequency because we don't want it to be directly
# assignable to a regular Frequency parameter.
class RootClock(ParamValue):
def __init__(self, value):
self.value = 1 / getLatency(value)
def __getattr__(self, attr):
if attr == 'frequency':
return Frequency(self)
if attr in ('latency', 'period'):
return Latency(self)
raise AttributeError, "Frequency object has no attribute '%s'" % attr
def ini_str(self):
return str(tick_check(self.value))
# A generic frequency and/or Latency value. Value is stored as a latency,
# but to avoid ambiguity this object does not support numeric ops (* or /).
# An explicit conversion to a Latency or Frequency must be made first.
class Clock(ParamValue):
def __init__(self, value):
self.value = getLatency(value)
def __getattr__(self, attr):
if attr == 'frequency':
return Frequency(self)
if attr in ('latency', 'period'):
return Latency(self)
raise AttributeError, "Frequency object has no attribute '%s'" % attr
def ini_str(self):
return self.period.ini_str()
class NetworkBandwidth(float,ParamValue):
def __new__(cls, value):
val = toNetworkBandwidth(value) / 8.0
@@ -1223,7 +1240,7 @@ AllMemory = AddrRange(0, MaxAddr)
# script once config is built.
def instantiate(root):
global ticks_per_sec
ticks_per_sec = float(root.frequency)
ticks_per_sec = float(root.clock.frequency)
root.print_ini()
noDot = True # temporary until we fix dot
if not noDot:
@@ -1246,7 +1263,7 @@ __all__ = ['SimObject', 'ParamContext', 'Param', 'VectorParam',
'Int32', 'UInt32', 'Int64', 'UInt64',
'Counter', 'Addr', 'Tick', 'Percent',
'TcpPort', 'UdpPort', 'EthernetAddr',
'MemorySize', 'Latency', 'Frequency', 'RootFrequency',
'MemorySize', 'Latency', 'Frequency', 'RootClock', 'Clock',
'NetworkBandwidth', 'MemoryBandwidth',
'Range', 'AddrRange', 'MaxAddr', 'MaxTick', 'AllMemory',
'Null', 'NULL',