1# Copyright (c) 2018 Inria 2# All rights reserved. 3# 4# Redistribution and use in source and binary forms, with or without 5# modification, are permitted provided that the following conditions are 6# met: redistributions of source code must retain the above copyright 7# notice, this list of conditions and the following disclaimer; 8# redistributions in binary form must reproduce the above copyright 9# notice, this list of conditions and the following disclaimer in the 10# documentation and/or other materials provided with the distribution; 11# neither the name of the copyright holders nor the names of its 12# contributors may be used to endorse or promote products derived from 13# this software without specific prior written permission. 14# 15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26# 27# Authors: Daniel Carvalho 28 29from m5.params import * 30from m5.proxy import * 31from m5.SimObject import SimObject 32 33class BaseCacheCompressor(SimObject): 34 type = 'BaseCacheCompressor' 35 abstract = True 36 cxx_header = "mem/cache/compressors/base.hh" 37 38 block_size = Param.Int(Parent.cache_line_size, "Block size in bytes") 39 40class BDI(BaseCacheCompressor): 41 type = 'BDI' 42 cxx_class = 'BDI' 43 cxx_header = "mem/cache/compressors/bdi.hh" 44 45 use_more_compressors = Param.Bool(True, "True if should use all possible" \ 46 "combinations of base and delta for the compressors. False if using" \ 47 "only the lowest possible delta size for each base size."); 48 49class CPack(BaseCacheCompressor): 50 type = 'CPack' 51 cxx_class = 'CPack' 52 cxx_header = "mem/cache/compressors/cpack.hh" 53