ReplacementPolicies.py revision 12627
112922Sgabeblack@google.com# Copyright (c) 2018 Inria 212922Sgabeblack@google.com# All rights reserved. 312922Sgabeblack@google.com# 412922Sgabeblack@google.com# Redistribution and use in source and binary forms, with or without 512922Sgabeblack@google.com# modification, are permitted provided that the following conditions are 612922Sgabeblack@google.com# met: redistributions of source code must retain the above copyright 712922Sgabeblack@google.com# notice, this list of conditions and the following disclaimer; 812922Sgabeblack@google.com# redistributions in binary form must reproduce the above copyright 912922Sgabeblack@google.com# notice, this list of conditions and the following disclaimer in the 1012922Sgabeblack@google.com# documentation and/or other materials provided with the distribution; 1112922Sgabeblack@google.com# neither the name of the copyright holders nor the names of its 1212922Sgabeblack@google.com# contributors may be used to endorse or promote products derived from 1312922Sgabeblack@google.com# this software without specific prior written permission. 1412922Sgabeblack@google.com# 1512922Sgabeblack@google.com# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1612922Sgabeblack@google.com# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1712922Sgabeblack@google.com# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1812922Sgabeblack@google.com# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 1912922Sgabeblack@google.com# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2012922Sgabeblack@google.com# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2112922Sgabeblack@google.com# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2212922Sgabeblack@google.com# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2312922Sgabeblack@google.com# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2412922Sgabeblack@google.com# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2512922Sgabeblack@google.com# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2612922Sgabeblack@google.com# 2712922Sgabeblack@google.com# Authors: Daniel Carvalho 2812922Sgabeblack@google.com 2912922Sgabeblack@google.comfrom m5.params import * 3012922Sgabeblack@google.comfrom m5.proxy import * 3112922Sgabeblack@google.comfrom m5.SimObject import SimObject 3212922Sgabeblack@google.com 3312922Sgabeblack@google.comclass BaseReplacementPolicy(SimObject): 3412922Sgabeblack@google.com type = 'BaseReplacementPolicy' 3512922Sgabeblack@google.com abstract = True 3612922Sgabeblack@google.com cxx_header = "mem/cache/replacement_policies/base.hh" 3712922Sgabeblack@google.com 3812922Sgabeblack@google.comclass FIFORP(BaseReplacementPolicy): 3912922Sgabeblack@google.com type = 'FIFORP' 4012922Sgabeblack@google.com cxx_class = 'FIFORP' 4112922Sgabeblack@google.com cxx_header = "mem/cache/replacement_policies/fifo_rp.hh" 4212922Sgabeblack@google.com 4312922Sgabeblack@google.comclass LRURP(BaseReplacementPolicy): 4412922Sgabeblack@google.com type = 'LRURP' 4512922Sgabeblack@google.com cxx_class = 'LRURP' 4612922Sgabeblack@google.com cxx_header = "mem/cache/replacement_policies/lru_rp.hh" 4712922Sgabeblack@google.com 4812922Sgabeblack@google.comclass MRURP(BaseReplacementPolicy): 4912922Sgabeblack@google.com type = 'MRURP' 5012922Sgabeblack@google.com cxx_class = 'MRURP' 5112922Sgabeblack@google.com cxx_header = "mem/cache/replacement_policies/mru_rp.hh" 5212922Sgabeblack@google.com 5312922Sgabeblack@google.comclass RandomRP(BaseReplacementPolicy): 5412922Sgabeblack@google.com type = 'RandomRP' 5512922Sgabeblack@google.com cxx_class = 'RandomRP' 5612922Sgabeblack@google.com cxx_header = "mem/cache/replacement_policies/random_rp.hh" 5712922Sgabeblack@google.com 5812922Sgabeblack@google.comclass BRRIPRP(BaseReplacementPolicy): 5912922Sgabeblack@google.com type = 'BRRIPRP' 6012922Sgabeblack@google.com cxx_class = 'BRRIPRP' 6112922Sgabeblack@google.com cxx_header = "mem/cache/replacement_policies/brrip_rp.hh" 6212922Sgabeblack@google.com max_RRPV = Param.Unsigned(3, "Maximum RRPV possible") 6312922Sgabeblack@google.com hit_priority = Param.Bool(False, 6412922Sgabeblack@google.com "Prioritize evicting blocks that havent had a hit recently") 6512922Sgabeblack@google.com btp = Param.Percent(3, 6612922Sgabeblack@google.com "Percentage of blocks to be inserted with long RRPV") 6712922Sgabeblack@google.com 6812922Sgabeblack@google.comclass RRIPRP(BRRIPRP): 6912922Sgabeblack@google.com btp = 0 7012922Sgabeblack@google.com