tests/gem5/replacement-policies/cache_hierarchies.py

# Copyright (c) 2022 Jarvis Jia, Jing Qu, Matt Sinclair, & Mingyuan Xiang
# Copyright (c) 2022 The Regents of the University of California
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from typing import Type

from gem5.utils.override import overrides
from gem5.components.cachehierarchies.ruby.mi_example_cache_hierarchy import (
    MIExampleCacheHierarchy,
)
from gem5.components.boards.abstract_board import AbstractBoard
from m5.objects.ReplacementPolicies import BaseReplacementPolicy


class ModMIExampleCacheHierarchy(MIExampleCacheHierarchy):
    def __init__(self, replacement_policy_class: Type[BaseReplacementPolicy]):
        super().__init__(size="512B", assoc="4")
        self._replacement_policy_class = replacement_policy_class

    @overrides(MIExampleCacheHierarchy)
    def incorporate_cache(self, board: AbstractBoard) -> None:
        super().incorporate_cache(board)
        for controller in self._controllers:
            controller.cacheMemory.replacement_policy = (
                self._replacement_policy_class()
            )