src/cpu/simple/BaseNonCachingSimpleCPU.py

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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