| # Copyright (c) 2022 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, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| from gem5.utils.override import overrides |
| from gem5.components.boards.mem_mode import MemMode |
| |
| from m5.util import warn |
| |
| from gem5.components.processors.base_cpu_processor import BaseCPUProcessor |
| from gem5.components.processors.cpu_types import CPUTypes |
| from gem5.components.boards.abstract_board import AbstractBoard |
| from .riscvmatched_core import U74Core |
| |
| |
| class U74Processor(BaseCPUProcessor): |
| """ |
| A U74Processor contains a number of cores of U74Core. |
| """ |
| |
| def __init__( |
| self, |
| is_fs: bool, |
| ) -> None: |
| self._cpu_type = CPUTypes.MINOR |
| super().__init__(cores=self._create_cores(is_fs)) |
| |
| def _create_cores(self, is_fs: bool): |
| if is_fs: |
| num_cores = 4 |
| else: |
| num_cores = 1 |
| return [U74Core(core_id=i) for i in range(num_cores)] |