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gem5/src/mem/cache/tags/SConscript

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Rework the way SCons recurses into subdirectories, making it automatic. The point is that now a subdirectory can be added to the build process just by creating a SConscript file in it. The process has two passes. On the first pass, all subdirs of the root of the tree are searched for SConsopts files. These files contain any command line options that ought to be added for a particular subdirectory. On the second pass, all subdirs of the src directory are searched for SConscript files. These files describe how to build any given subdirectory. I have added a Source() function. Any file (relative to the directory in which the SConscript resides) passed to that function is added to the build. Clean up everything to take advantage of Source(). function is added to the list of files to be built. --HG-- extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30
2007-03-11 08:00:54 +01:00
# -*- mode:python -*-
# Copyright (c) 2006 The Regents of The University of Michigan
# 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.
#
# Authors: Nathan Binkert
Import('*')
mem: Reorganize cache tags and make them a SimObject This patch reorganizes the cache tags to allow more flexibility to implement new replacement policies. The base tags class is now a clocked object so that derived classes can use a clock if they need one. Also having deriving from SimObject allows specialized Tag classes to be swapped in/out in .py files. The cache set is now templatized to allow it to contain customized cache blocks with additional informaiton. This involved moving code to the .hh file and removing cacheset.cc. The statistics belonging to the cache tags are now including ".tags" in their name. Hence, the stats need an update to reflect the change in naming.
2013-06-27 11:49:50 +02:00
SimObject('Tags.py')
Rename cache files for brevity and consistency with rest of tree. --HG-- rename : src/mem/cache/base_cache.cc => src/mem/cache/base.cc rename : src/mem/cache/base_cache.hh => src/mem/cache/base.hh rename : src/mem/cache/cache_blk.cc => src/mem/cache/blk.cc rename : src/mem/cache/cache_blk.hh => src/mem/cache/blk.hh rename : src/mem/cache/cache_builder.cc => src/mem/cache/builder.cc rename : src/mem/cache/miss/mshr.cc => src/mem/cache/mshr.cc rename : src/mem/cache/miss/mshr.hh => src/mem/cache/mshr.hh rename : src/mem/cache/miss/mshr_queue.cc => src/mem/cache/mshr_queue.cc rename : src/mem/cache/miss/mshr_queue.hh => src/mem/cache/mshr_queue.hh rename : src/mem/cache/prefetch/base_prefetcher.cc => src/mem/cache/prefetch/base.cc rename : src/mem/cache/prefetch/base_prefetcher.hh => src/mem/cache/prefetch/base.hh rename : src/mem/cache/prefetch/ghb_prefetcher.cc => src/mem/cache/prefetch/ghb.cc rename : src/mem/cache/prefetch/ghb_prefetcher.hh => src/mem/cache/prefetch/ghb.hh rename : src/mem/cache/prefetch/stride_prefetcher.cc => src/mem/cache/prefetch/stride.cc rename : src/mem/cache/prefetch/stride_prefetcher.hh => src/mem/cache/prefetch/stride.hh rename : src/mem/cache/prefetch/tagged_prefetcher.cc => src/mem/cache/prefetch/tagged.cc rename : src/mem/cache/prefetch/tagged_prefetcher.hh => src/mem/cache/prefetch/tagged.hh rename : src/mem/cache/tags/base_tags.cc => src/mem/cache/tags/base.cc rename : src/mem/cache/tags/base_tags.hh => src/mem/cache/tags/base.hh rename : src/mem/cache/tags/Repl.py => src/mem/cache/tags/iic_repl/Repl.py rename : src/mem/cache/tags/repl/gen.cc => src/mem/cache/tags/iic_repl/gen.cc rename : src/mem/cache/tags/repl/gen.hh => src/mem/cache/tags/iic_repl/gen.hh rename : src/mem/cache/tags/repl/repl.hh => src/mem/cache/tags/iic_repl/repl.hh extra : convert_revision : ff7a35cc155a8d80317563c45cebe405984eac62
2008-02-10 23:15:42 +01:00
Source('base.cc')
mem: refactor LRU cache tags and add random replacement tags this patch implements a new tags class that uses a random replacement policy. these tags prefer to evict invalid blocks first, if none are available a replacement candidate is chosen at random. this patch factors out the common code in the LRU class and creates a new abstract class: the BaseSetAssoc class. any set associative tag class must implement the functionality related to the actual replacement policy in the following methods: accessBlock() findVictim() insertBlock() invalidate()
2014-07-28 18:23:23 +02:00
Source('base_set_assoc.cc')
Rework the way SCons recurses into subdirectories, making it automatic. The point is that now a subdirectory can be added to the build process just by creating a SConscript file in it. The process has two passes. On the first pass, all subdirs of the root of the tree are searched for SConsopts files. These files contain any command line options that ought to be added for a particular subdirectory. On the second pass, all subdirs of the src directory are searched for SConscript files. These files describe how to build any given subdirectory. I have added a Source() function. Any file (relative to the directory in which the SConscript resides) passed to that function is added to the build. Clean up everything to take advantage of Source(). function is added to the list of files to be built. --HG-- extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30
2007-03-11 08:00:54 +01:00
Source('lru.cc')
mem: refactor LRU cache tags and add random replacement tags this patch implements a new tags class that uses a random replacement policy. these tags prefer to evict invalid blocks first, if none are available a replacement candidate is chosen at random. this patch factors out the common code in the LRU class and creates a new abstract class: the BaseSetAssoc class. any set associative tag class must implement the functionality related to the actual replacement policy in the following methods: accessBlock() findVictim() insertBlock() invalidate()
2014-07-28 18:23:23 +02:00
Source('random_repl.cc')
Source('fa_lru.cc')
mem: cache: tags: Introduce NMRU Cache Replacement Policy Introduce NMRU Cache Replacement Policy Reference implementation is here http://pages.cs.wisc.edu/~david/courses/cs752/Fall2015/gem5-tutorial/part2/simobject.html Note that the reference implementation is outdated and does not build/work with the current gem5 branch. This commit modifies the above example to make it work with the current gem5 branch.
2017-01-24 05:54:14 +01:00
Source('nmru.cc')
mem: cache: tags: Implement LFU Cache replacement policy Implement Least Frequently Used Cache replacement policy.
2017-03-23 12:51:09 +01:00
Source('lfu.cc')
mem: cache: tags: Implement LIFO Cache Replacement Policy
2017-04-09 12:48:41 +02:00
Source('lifo.cc')
mem: cache: tags: Implement FIFO Cache Replacement Policy Signed-off-by: Ranjeet Kumar <rkumar15@hawk.iit.edu>
2017-04-09 17:38:37 +02:00
Source('fifo.cc')