Make cache compression policy a runtime virtual thing
instead of a template policy. --HG-- extra : convert_revision : 6a4ac7a189a950390a973fdfce94f56190de92db
This commit is contained in:
Steve Reinhardt
parent
d2a71f6b2a
commit
6f94c3c8d7
8 changed files with 137 additions and 156 deletions
71
src/base/compression/base.hh
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71
src/base/compression/base.hh
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@ -0,0 +1,71 @@
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/*
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* Copyright (c) 2003-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Erik Hallnor
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* Nathan Binkert
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*/
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#ifndef __BASE_COMPRESSION_BASE_HH__
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#define __BASE_COMPRESSION_BASE_HH__
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/**
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* @file
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* This file defines a base (abstract virtual) compression algorithm object.
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*/
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#include <inttypes.h>
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/**
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* Abstract virtual compression algorithm object.
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*/
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class CompressionAlgorithm
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{
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public:
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virtual ~CompressionAlgorithm() {}
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/**
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* Uncompress the data, causes a fatal since no data should be compressed.
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* @param dest The output buffer.
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* @param src The compressed data.
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* @param size The number of bytes in src.
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*
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* @retval The size of the uncompressed data.
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*/
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virtual int uncompress(uint8_t * dest, uint8_t *src, int size) = 0;
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/**
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* Compress the data, just returns the source data.
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* @param dest The output buffer.
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* @param src The data to be compressed.
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* @param size The number of bytes in src.
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*
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* @retval The size of the compressed data.
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*/
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virtual int compress(uint8_t *dest, uint8_t *src, int size) = 0;
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};
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#endif //__BASE_COMPRESSION_BASE_HH__
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@ -35,12 +35,12 @@
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* LZSSCompression declarations.
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*/
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#include "sim/host.hh" // for uint8_t
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#include "base/compression/base.hh"
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/**
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* Simple LZSS compression scheme.
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*/
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class LZSSCompression
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class LZSSCompression : public CompressionAlgorithm
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{
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/**
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* Finds the longest substring for the given offset.
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@ -38,41 +38,23 @@
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*/
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#include "base/misc.hh" // for fatal()
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#include "sim/host.hh"
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#include "base/compression/base.hh"
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/**
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* A dummy compression class to use when no data compression is desired.
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*/
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class NullCompression
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class NullCompression : public CompressionAlgorithm
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{
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public:
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/**
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* Uncompress the data, causes a fatal since no data should be compressed.
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* @param dest The output buffer.
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* @param src The compressed data.
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* @param size The number of bytes in src.
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*
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* @retval The size of the uncompressed data.
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*/
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static int uncompress(uint8_t * dest, uint8_t *src, int size)
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int uncompress(uint8_t * dest, uint8_t *src, int size)
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{
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fatal("Can't uncompress data");
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}
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/**
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* Compress the data, just returns the source data.
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* @param dest The output buffer.
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* @param src The data to be compressed.
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* @param size The number of bytes in src.
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*
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* @retval The size of the compressed data.
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*/
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static int compress(uint8_t *dest, uint8_t *src, int size)
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int compress(uint8_t *dest, uint8_t *src, int size)
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{
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memcpy(dest,src,size);
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return size;
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fatal("Can't compress data");
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}
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};
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76
src/mem/cache/cache.cc
vendored
76
src/mem/cache/cache.cc
vendored
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@ -37,7 +37,6 @@
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*/
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#include "mem/config/cache.hh"
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#include "mem/config/compression.hh"
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#include "mem/cache/tags/cache_tags.hh"
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@ -61,11 +60,6 @@
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#include "mem/cache/tags/split_lifo.hh"
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#endif
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#include "base/compression/null_compression.hh"
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#if defined(USE_LZSS_COMPRESSION)
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#include "base/compression/lzss_compression.hh"
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#endif
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#include "mem/cache/miss/miss_queue.hh"
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#include "mem/cache/miss/blocking_buffer.hh"
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@ -79,68 +73,38 @@
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#if defined(USE_CACHE_FALRU)
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template class Cache<CacheTags<FALRU,NullCompression>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<FALRU,NullCompression>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<FALRU,NullCompression>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<FALRU,NullCompression>, MissQueue, UniCoherence>;
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#if defined(USE_LZSS_COMPRESSION)
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template class Cache<CacheTags<FALRU,LZSSCompression>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<FALRU,LZSSCompression>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<FALRU,LZSSCompression>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<FALRU,LZSSCompression>, MissQueue, UniCoherence>;
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#endif
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template class Cache<CacheTags<FALRU>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<FALRU>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<FALRU>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<FALRU>, MissQueue, UniCoherence>;
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#endif
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#if defined(USE_CACHE_IIC)
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template class Cache<CacheTags<IIC,NullCompression>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<IIC,NullCompression>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<IIC,NullCompression>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<IIC,NullCompression>, MissQueue, UniCoherence>;
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#if defined(USE_LZSS_COMPRESSION)
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template class Cache<CacheTags<IIC,LZSSCompression>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<IIC,LZSSCompression>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<IIC,LZSSCompression>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<IIC,LZSSCompression>, MissQueue, UniCoherence>;
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#endif
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template class Cache<CacheTags<IIC>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<IIC>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<IIC>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<IIC>, MissQueue, UniCoherence>;
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#endif
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#if defined(USE_CACHE_LRU)
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template class Cache<CacheTags<LRU,NullCompression>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<LRU,NullCompression>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<LRU,NullCompression>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<LRU,NullCompression>, MissQueue, UniCoherence>;
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#if defined(USE_LZSS_COMPRESSION)
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template class Cache<CacheTags<LRU,LZSSCompression>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<LRU,LZSSCompression>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<LRU,LZSSCompression>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<LRU,LZSSCompression>, MissQueue, UniCoherence>;
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#endif
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template class Cache<CacheTags<LRU>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<LRU>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<LRU>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<LRU>, MissQueue, UniCoherence>;
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#endif
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#if defined(USE_CACHE_SPLIT)
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template class Cache<CacheTags<Split,NullCompression>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<Split,NullCompression>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<Split,NullCompression>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<Split,NullCompression>, MissQueue, UniCoherence>;
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#if defined(USE_LZSS_COMPRESSION)
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template class Cache<CacheTags<Split,LZSSCompression>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<Split,LZSSCompression>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<Split,LZSSCompression>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<Split,LZSSCompression>, MissQueue, UniCoherence>;
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#endif
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template class Cache<CacheTags<Split>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<Split>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<Split>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<Split>, MissQueue, UniCoherence>;
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#endif
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#if defined(USE_CACHE_SPLIT_LIFO)
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template class Cache<CacheTags<SplitLIFO,NullCompression>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<SplitLIFO,NullCompression>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<SplitLIFO,NullCompression>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<SplitLIFO,NullCompression>, MissQueue, UniCoherence>;
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#if defined(USE_LZSS_COMPRESSION)
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template class Cache<CacheTags<SplitLIFO,LZSSCompression>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<SplitLIFO,LZSSCompression>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<SplitLIFO,LZSSCompression>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<SplitLIFO,LZSSCompression>, MissQueue, UniCoherence>;
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#endif
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template class Cache<CacheTags<SplitLIFO>, BlockingBuffer, SimpleCoherence>;
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template class Cache<CacheTags<SplitLIFO>, BlockingBuffer, UniCoherence>;
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template class Cache<CacheTags<SplitLIFO>, MissQueue, SimpleCoherence>;
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template class Cache<CacheTags<SplitLIFO>, MissQueue, UniCoherence>;
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#endif
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#endif //DOXYGEN_SHOULD_SKIP_THIS
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97
src/mem/cache/cache_builder.cc
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97
src/mem/cache/cache_builder.cc
vendored
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@ -37,7 +37,6 @@
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// Must be included first to determine which caches we want
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#include "mem/config/cache.hh"
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#include "mem/config/compression.hh"
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#include "mem/config/prefetch.hh"
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#include "mem/cache/base_cache.hh"
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@ -69,9 +68,7 @@
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// Compression Templates
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#include "base/compression/null_compression.hh"
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#if defined(USE_LZSS_COMPRESSION)
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#include "base/compression/lzss_compression.hh"
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#endif
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// CacheTags Templates
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#include "mem/cache/tags/cache_tags.hh"
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@ -211,77 +208,47 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(BaseCache)
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END_INIT_SIM_OBJECT_PARAMS(BaseCache)
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#define BUILD_CACHE(t, comp, b, c) do { \
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Prefetcher<CacheTags<t, comp>, b> *pf; \
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#define BUILD_CACHE(t, b, c) do { \
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Prefetcher<CacheTags<t>, b> *pf; \
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if (pf_policy == "tagged") { \
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BUILD_TAGGED_PREFETCHER(t, comp, b); \
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BUILD_TAGGED_PREFETCHER(t, b); \
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} \
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else if (pf_policy == "stride") { \
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BUILD_STRIDED_PREFETCHER(t, comp, b); \
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BUILD_STRIDED_PREFETCHER(t, b); \
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} \
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else if (pf_policy == "ghb") { \
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BUILD_GHB_PREFETCHER(t, comp, b); \
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BUILD_GHB_PREFETCHER(t, b); \
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} \
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else { \
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BUILD_NULL_PREFETCHER(t, comp, b); \
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BUILD_NULL_PREFETCHER(t, b); \
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} \
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Cache<CacheTags<t, comp>, b, c>::Params params(tagStore, mq, coh, \
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Cache<CacheTags<t>, b, c>::Params params(tagStore, mq, coh, \
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base_params, \
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/*in_bus, out_bus,*/ pf, \
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pf, \
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prefetch_access, hit_latency); \
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Cache<CacheTags<t, comp>, b, c> *retval = \
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new Cache<CacheTags<t, comp>, b, c>(getInstanceName(), /*hier,*/ \
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params); \
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/* if (in_bus == NULL) { \
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retval->setSlaveInterface(new MemoryInterface<Cache<CacheTags<t, comp>, b, c> >(getInstanceName(), hier, retval, mem_trace)); \
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} else { \
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retval->setSlaveInterface(new SlaveInterface<Cache<CacheTags<t, comp>, b, c>, Bus>(getInstanceName(), hier, retval, in_bus, mem_trace)); \
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} \
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retval->setMasterInterface(new MasterInterface<Cache<CacheTags<t, comp>, b, c>, Bus>(getInstanceName(), hier, retval, out_bus)); \
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out_bus->rangeChange(); \
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Cache<CacheTags<t>, b, c> *retval = \
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new Cache<CacheTags<t>, b, c>(getInstanceName(), params); \
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return retval; \
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*/return retval; \
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} while (0)
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#define BUILD_CACHE_PANIC(x) do { \
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panic("%s not compiled into M5", x); \
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} while (0)
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#if defined(USE_LZSS_COMPRESSION)
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#define BUILD_COMPRESSED_CACHE(TAGS, tags, b, c) do { \
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#define BUILD_COMPRESSED_CACHE(TAGS, tags, b, c) \
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do { \
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CompressionAlgorithm *compAlg; \
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if (compressed_bus || store_compressed) { \
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CacheTags<TAGS, LZSSCompression> *tagStore = \
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new CacheTags<TAGS, LZSSCompression>(tags, \
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compression_latency, \
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true, store_compressed, \
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adaptive_compression, \
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prefetch_miss); \
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BUILD_CACHE(TAGS, LZSSCompression, b, c); \
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compAlg = new LZSSCompression(); \
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} else { \
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CacheTags<TAGS, NullCompression> *tagStore = \
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new CacheTags<TAGS, NullCompression>(tags, \
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compression_latency, \
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true, store_compressed, \
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adaptive_compression, \
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prefetch_miss); \
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BUILD_CACHE(TAGS, NullCompression, b, c); \
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compAlg = new NullCompression(); \
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} \
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CacheTags<TAGS> *tagStore = \
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new CacheTags<TAGS>(tags, compression_latency, true, \
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store_compressed, adaptive_compression, \
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compAlg, prefetch_miss); \
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BUILD_CACHE(TAGS, b, c); \
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} while (0)
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#else
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#define BUILD_COMPRESSED_CACHE(TAGS, tags, b, c) do { \
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if (compressed_bus || store_compressed){ \
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BUILD_CACHE_PANIC("compressed caches"); \
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} else { \
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CacheTags<TAGS, NullCompression> *tagStore = \
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new CacheTags<TAGS, NullCompression>(tags, \
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compression_latency, \
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true, store_compressed, \
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adaptive_compression \
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prefetch_miss); \
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BUILD_CACHE(TAGS, NullCompression, b, c); \
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} \
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} while (0)
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#endif
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#if defined(USE_CACHE_FALRU)
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#define BUILD_FALRU_CACHE(b,c) do { \
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@ -359,8 +326,8 @@ END_INIT_SIM_OBJECT_PARAMS(BaseCache)
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} while (0)
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#if defined(USE_TAGGED)
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#define BUILD_TAGGED_PREFETCHER(t, comp, b) pf = new \
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TaggedPrefetcher<CacheTags<t, comp>, b>(prefetcher_size, \
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#define BUILD_TAGGED_PREFETCHER(t, b) pf = new \
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TaggedPrefetcher<CacheTags<t>, b>(prefetcher_size, \
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!prefetch_past_page, \
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prefetch_serial_squash, \
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prefetch_cache_check_push, \
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@ -368,12 +335,12 @@ END_INIT_SIM_OBJECT_PARAMS(BaseCache)
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prefetch_latency, \
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prefetch_degree)
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#else
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#define BUILD_TAGGED_PREFETCHER(t, comp, b) BUILD_CACHE_PANIC("Tagged Prefetcher")
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#define BUILD_TAGGED_PREFETCHER(t, b) BUILD_CACHE_PANIC("Tagged Prefetcher")
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#endif
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#if defined(USE_STRIDED)
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#define BUILD_STRIDED_PREFETCHER(t, comp, b) pf = new \
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StridePrefetcher<CacheTags<t, comp>, b>(prefetcher_size, \
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#define BUILD_STRIDED_PREFETCHER(t, b) pf = new \
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StridePrefetcher<CacheTags<t>, b>(prefetcher_size, \
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!prefetch_past_page, \
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prefetch_serial_squash, \
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prefetch_cache_check_push, \
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@ -382,12 +349,12 @@ END_INIT_SIM_OBJECT_PARAMS(BaseCache)
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prefetch_degree, \
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prefetch_use_cpu_id)
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#else
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#define BUILD_STRIDED_PREFETCHER(t, comp, b) BUILD_CACHE_PANIC("Stride Prefetcher")
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#define BUILD_STRIDED_PREFETCHER(t, b) BUILD_CACHE_PANIC("Stride Prefetcher")
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#endif
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#if defined(USE_GHB)
|
||||
#define BUILD_GHB_PREFETCHER(t, comp, b) pf = new \
|
||||
GHBPrefetcher<CacheTags<t, comp>, b>(prefetcher_size, \
|
||||
#define BUILD_GHB_PREFETCHER(t, b) pf = new \
|
||||
GHBPrefetcher<CacheTags<t>, b>(prefetcher_size, \
|
||||
!prefetch_past_page, \
|
||||
prefetch_serial_squash, \
|
||||
prefetch_cache_check_push, \
|
||||
|
|
@ -396,12 +363,12 @@ END_INIT_SIM_OBJECT_PARAMS(BaseCache)
|
|||
prefetch_degree, \
|
||||
prefetch_use_cpu_id)
|
||||
#else
|
||||
#define BUILD_GHB_PREFETCHER(t, comp, b) BUILD_CACHE_PANIC("GHB Prefetcher")
|
||||
#define BUILD_GHB_PREFETCHER(t, b) BUILD_CACHE_PANIC("GHB Prefetcher")
|
||||
#endif
|
||||
|
||||
#if defined(USE_TAGGED)
|
||||
#define BUILD_NULL_PREFETCHER(t, comp, b) pf = new \
|
||||
TaggedPrefetcher<CacheTags<t, comp>, b>(prefetcher_size, \
|
||||
#define BUILD_NULL_PREFETCHER(t, b) pf = new \
|
||||
TaggedPrefetcher<CacheTags<t>, b>(prefetcher_size, \
|
||||
!prefetch_past_page, \
|
||||
prefetch_serial_squash, \
|
||||
prefetch_cache_check_push, \
|
||||
|
|
@ -409,7 +376,7 @@ END_INIT_SIM_OBJECT_PARAMS(BaseCache)
|
|||
prefetch_latency, \
|
||||
prefetch_degree)
|
||||
#else
|
||||
#define BUILD_NULL_PREFETCHER(t, comp, b) BUILD_CACHE_PANIC("NULL Prefetcher (uses Tagged)")
|
||||
#define BUILD_NULL_PREFETCHER(t, b) BUILD_CACHE_PANIC("NULL Prefetcher (uses Tagged)")
|
||||
#endif
|
||||
|
||||
CREATE_SIM_OBJECT(BaseCache)
|
||||
|
|
|
|||
1
src/mem/cache/miss/blocking_buffer.hh
vendored
1
src/mem/cache/miss/blocking_buffer.hh
vendored
|
|
@ -38,6 +38,7 @@
|
|||
|
||||
#include <vector>
|
||||
|
||||
#include "base/misc.hh" // for fatal()
|
||||
#include "mem/cache/miss/mshr.hh"
|
||||
#include "base/statistics.hh"
|
||||
|
||||
|
|
|
|||
6
src/mem/cache/prefetch/ghb_prefetcher.cc
vendored
6
src/mem/cache/prefetch/ghb_prefetcher.cc
vendored
|
|
@ -38,8 +38,6 @@
|
|||
|
||||
#include "mem/cache/tags/lru.hh"
|
||||
|
||||
#include "base/compression/null_compression.hh"
|
||||
|
||||
#include "mem/cache/miss/miss_queue.hh"
|
||||
#include "mem/cache/miss/blocking_buffer.hh"
|
||||
|
||||
|
|
@ -48,7 +46,7 @@
|
|||
// Template Instantiations
|
||||
#ifndef DOXYGEN_SHOULD_SKIP_THIS
|
||||
|
||||
template class GHBPrefetcher<CacheTags<LRU,NullCompression>, MissQueue>;
|
||||
template class GHBPrefetcher<CacheTags<LRU,NullCompression>, BlockingBuffer>;
|
||||
template class GHBPrefetcher<CacheTags<LRU>, MissQueue>;
|
||||
template class GHBPrefetcher<CacheTags<LRU>, BlockingBuffer>;
|
||||
|
||||
#endif //DOXYGEN_SHOULD_SKIP_THIS
|
||||
|
|
|
|||
6
src/mem/cache/prefetch/stride_prefetcher.cc
vendored
6
src/mem/cache/prefetch/stride_prefetcher.cc
vendored
|
|
@ -38,8 +38,6 @@
|
|||
|
||||
#include "mem/cache/tags/lru.hh"
|
||||
|
||||
#include "base/compression/null_compression.hh"
|
||||
|
||||
#include "mem/cache/miss/miss_queue.hh"
|
||||
#include "mem/cache/miss/blocking_buffer.hh"
|
||||
|
||||
|
|
@ -48,7 +46,7 @@
|
|||
// Template Instantiations
|
||||
#ifndef DOXYGEN_SHOULD_SKIP_THIS
|
||||
|
||||
template class StridePrefetcher<CacheTags<LRU,NullCompression>, MissQueue>;
|
||||
template class StridePrefetcher<CacheTags<LRU,NullCompression>, BlockingBuffer>;
|
||||
template class StridePrefetcher<CacheTags<LRU>, MissQueue>;
|
||||
template class StridePrefetcher<CacheTags<LRU>, BlockingBuffer>;
|
||||
|
||||
#endif //DOXYGEN_SHOULD_SKIP_THIS
|
||||
|
|
|
|||
Loading…
Reference in a new issue