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# Copyright (c) 2012, 2018 ARM Limited
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from m5.params import *
from m5.objects.BaseAtomicSimpleCPU import BaseAtomicSimpleCPU
class BaseNonCachingSimpleCPU(BaseAtomicSimpleCPU):
"""Simple CPU model based on the atomic CPU. Unlike the atomic CPU,
this model causes the memory system to bypass caches and is
therefore slightly faster in some cases. However, its main purpose
is as a substitute for hardware virtualized CPUs when
stress-testing the memory system.
"""
type = "BaseNonCachingSimpleCPU"
cxx_header = "cpu/simple/noncaching.hh"
cxx_class = "gem5::NonCachingSimpleCPU"
numThreads = 1
@classmethod
def memory_mode(cls):
return "atomic_noncaching"
@classmethod
def support_take_over(cls):
return True