| # Copyright (c) 2021 The Regents of the University of California |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer; |
| # redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution; |
| # neither the name of the copyright holders nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| from abc import abstractmethod |
| from ...utils.override import overrides |
| from ..abstract_cache_hierarchy import AbstractCacheHierarchy |
| |
| from m5.objects import Port |
| |
| |
| class AbstractClassicCacheHierarchy(AbstractCacheHierarchy): |
| """ |
| All classic cache hierarchies inherit from this class. This class |
| provides the shared infrastructure that all classic memory system |
| implementations need. |
| """ |
| |
| def __init__(self): |
| super(AbstractClassicCacheHierarchy, self).__init__() |
| |
| @overrides(AbstractCacheHierarchy) |
| def is_ruby(self) -> bool: |
| return False |
| |
| @abstractmethod |
| def get_mem_side_port(self) -> Port: |
| raise NotImplementedError |
| |
| @abstractmethod |
| def get_cpu_side_port(self) -> Port: |
| raise NotImplementedError |