b6315ad8d64ae4783cb1ebeb1a75834b341717a5
1 # Copyright (c) 2018 Inria
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5 # modification, are permitted provided that the following conditions are
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13 # this software without specific prior written permission.
15 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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22 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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27 # Authors: Daniel Carvalho
29 from m5
.params
import *
30 from m5
.proxy
import *
31 from m5
.SimObject
import SimObject
33 class BaseCacheCompressor(SimObject
):
34 type = 'BaseCacheCompressor'
36 cxx_header
= "mem/cache/compressors/base.hh"
38 block_size
= Param
.Int(Parent
.cache_line_size
, "Block size in bytes")
39 size_threshold
= Param
.Unsigned(Parent
.cache_line_size
, "Minimum size, "
40 "in bytes, in which a block must be compressed to. Otherwise it is "
41 "stored in its uncompressed state")
43 class BDI(BaseCacheCompressor
):
46 cxx_header
= "mem/cache/compressors/bdi.hh"
48 use_more_compressors
= Param
.Bool(True, "True if should use all possible" \
49 "combinations of base and delta for the compressors. False if using" \
50 "only the lowest possible delta size for each base size.");
52 class DictionaryCompressor(BaseCacheCompressor
):
53 type = 'DictionaryCompressor'
55 cxx_header
= "mem/cache/compressors/dictionary_compressor.hh"
57 dictionary_size
= Param
.Int(Parent
.cache_line_size
,
58 "Number of dictionary entries")
60 class CPack(DictionaryCompressor
):
63 cxx_header
= "mem/cache/compressors/cpack.hh"