[gem5-dev] Change in public/gem5[master]: mem-cache: Create FIFO replacement policy
Daniel Carvalho has submitted this change and it was merged. ( https://gem5-review.googlesource.com/ ) Change subject: mem-cache: Create FIFO replacement policy .. mem-cache: Create FIFO replacement policy Implementation of a First-In, First-Out replacement policy. Change-Id: Id234ec9d29c092dd4516e609da14b8a75a96b5e4 Reviewed-on: https://gem5-review.googlesource.com/ Reviewed-by: Nikos NikolerisMaintainer: Nikos Nikoleris --- M src/mem/cache/replacement_policies/ReplacementPolicies.py M src/mem/cache/replacement_policies/SConscript A src/mem/cache/replacement_policies/fifo_rp.cc A src/mem/cache/replacement_policies/fifo_rp.hh 4 files changed, 144 insertions(+), 0 deletions(-) Approvals: Nikos Nikoleris: Looks good to me, approved; Looks good to me, approved diff --git a/src/mem/cache/replacement_policies/ReplacementPolicies.py b/src/mem/cache/replacement_policies/ReplacementPolicies.py index 1907c36..be9f2de 100644 --- a/src/mem/cache/replacement_policies/ReplacementPolicies.py +++ b/src/mem/cache/replacement_policies/ReplacementPolicies.py @@ -35,6 +35,11 @@ abstract = True cxx_header = "mem/cache/replacement_policies/base.hh" +class FIFORP(BaseReplacementPolicy): +type = 'FIFORP' +cxx_class = 'FIFORP' +cxx_header = "mem/cache/replacement_policies/fifo_rp.hh" + class LRURP(BaseReplacementPolicy): type = 'LRURP' cxx_class = 'LRURP' diff --git a/src/mem/cache/replacement_policies/SConscript b/src/mem/cache/replacement_policies/SConscript index 6f99110..45a7b4f 100644 --- a/src/mem/cache/replacement_policies/SConscript +++ b/src/mem/cache/replacement_policies/SConscript @@ -33,6 +33,7 @@ SimObject('ReplacementPolicies.py') Source('base.cc') +Source('fifo_rp.cc') Source('lru_rp.cc') Source('mru_rp.cc') Source('random_rp.cc') diff --git a/src/mem/cache/replacement_policies/fifo_rp.cc b/src/mem/cache/replacement_policies/fifo_rp.cc new file mode 100644 index 000..fd320be --- /dev/null +++ b/src/mem/cache/replacement_policies/fifo_rp.cc @@ -0,0 +1,69 @@ +/** + * Copyright (c) 2018 Inria + * 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: Daniel Carvalho + */ + +#include "mem/cache/replacement_policies/fifo_rp.hh" + +#include "debug/CacheRepl.hh" + +FIFORP::FIFORP(const Params *p) +: BaseReplacementPolicy(p) +{ +} + +CacheBlk* +FIFORP::getVictim(const ReplacementCandidates& candidates) +{ +// There must be at least one replacement candidate +assert(candidates.size() > 0); + +// Visit all candidates to find victim +CacheBlk* blk = candidates[0]; +for (const auto& candidate : candidates) { +// Stop iteration if found an invalid block +if (!candidate->isValid()) { +blk = candidate; +break; +// Update victim block if necessary +} else if (candidate->tickInserted < blk->tickInserted) { +blk = candidate; +} +} + +DPRINTF(CacheRepl, "set %x, way %x: selecting blk for replacement\n", +blk->set, blk->way); + +return blk; +} + +FIFORP* +FIFORPParams::create() +{ +return new FIFORP(this); +} diff --git a/src/mem/cache/replacement_policies/fifo_rp.hh b/src/mem/cache/replacement_policies/fifo_rp.hh new file mode 100644 index 000..1649371 --- /dev/null +++ b/src/mem/cache/replacement_policies/fifo_rp.hh @@ -0,0 +1,69 @@ +/** + *
[gem5-dev] Change in public/gem5[master]: mem-cache: Create FIFO replacement policy
Hello Jason Lowe-Power, Nikos Nikoleris, I'd like you to reexamine a change. Please visit https://gem5-review.googlesource.com/ to look at the new patch set (#5). Change subject: mem-cache: Create FIFO replacement policy .. mem-cache: Create FIFO replacement policy Implementation of a First-In, First-Out replacement policy. Change-Id: Id234ec9d29c092dd4516e609da14b8a75a96b5e4 --- M src/mem/cache/replacement_policies/ReplacementPolicies.py M src/mem/cache/replacement_policies/SConscript A src/mem/cache/replacement_policies/fifo_rp.cc A src/mem/cache/replacement_policies/fifo_rp.hh 4 files changed, 144 insertions(+), 0 deletions(-) -- To view, visit https://gem5-review.googlesource.com/ To unsubscribe, or for help writing mail filters, visit https://gem5-review.googlesource.com/settings Gerrit-Project: public/gem5 Gerrit-Branch: master Gerrit-Change-Id: Id234ec9d29c092dd4516e609da14b8a75a96b5e4 Gerrit-Change-Number: Gerrit-PatchSet: 5 Gerrit-Owner: Daniel CarvalhoGerrit-Reviewer: Jason Lowe-Power Gerrit-Reviewer: Nikos Nikoleris Gerrit-MessageType: newpatchset ___ gem5-dev mailing list gem5-dev@gem5.org http://m5sim.org/mailman/listinfo/gem5-dev
[gem5-dev] Change in public/gem5[master]: mem-cache: Create FIFO replacement policy
Hello Jason Lowe-Power, Nikos Nikoleris, I'd like you to reexamine a change. Please visit https://gem5-review.googlesource.com/ to look at the new patch set (#4). Change subject: mem-cache: Create FIFO replacement policy .. mem-cache: Create FIFO replacement policy Implementation of a First-In, First-Out replacement policy. Change-Id: Id234ec9d29c092dd4516e609da14b8a75a96b5e4 --- M src/mem/cache/replacement_policies/ReplacementPolicies.py M src/mem/cache/replacement_policies/SConscript A src/mem/cache/replacement_policies/fifo_rp.cc A src/mem/cache/replacement_policies/fifo_rp.hh 4 files changed, 144 insertions(+), 0 deletions(-) -- To view, visit https://gem5-review.googlesource.com/ To unsubscribe, or for help writing mail filters, visit https://gem5-review.googlesource.com/settings Gerrit-Project: public/gem5 Gerrit-Branch: master Gerrit-Change-Id: Id234ec9d29c092dd4516e609da14b8a75a96b5e4 Gerrit-Change-Number: Gerrit-PatchSet: 4 Gerrit-Owner: Daniel CarvalhoGerrit-Reviewer: Jason Lowe-Power Gerrit-Reviewer: Nikos Nikoleris Gerrit-MessageType: newpatchset ___ gem5-dev mailing list gem5-dev@gem5.org http://m5sim.org/mailman/listinfo/gem5-dev
[gem5-dev] Change in public/gem5[master]: mem-cache: Create FIFO replacement policy
Daniel Carvalho has uploaded this change for review. ( https://gem5-review.googlesource.com/ Change subject: mem-cache: Create FIFO replacement policy .. mem-cache: Create FIFO replacement policy Implementation of a First-In, First-Out replacement policy. Change-Id: Id234ec9d29c092dd4516e609da14b8a75a96b5e4 --- M src/mem/cache/replacement_policies/ReplacementPolicies.py M src/mem/cache/replacement_policies/SConscript A src/mem/cache/replacement_policies/fifo_rp.cc A src/mem/cache/replacement_policies/fifo_rp.hh 4 files changed, 145 insertions(+), 0 deletions(-) diff --git a/src/mem/cache/replacement_policies/ReplacementPolicies.py b/src/mem/cache/replacement_policies/ReplacementPolicies.py index 0faa524..51e2ef7 100644 --- a/src/mem/cache/replacement_policies/ReplacementPolicies.py +++ b/src/mem/cache/replacement_policies/ReplacementPolicies.py @@ -35,6 +35,11 @@ abstract = True cxx_header = "mem/cache/replacement_policies/base.hh" +class FIFORP(BaseReplacementPolicy): +type = 'FIFORP' +cxx_class = 'FIFORP' +cxx_header = "mem/cache/replacement_policies/fifo_rp.hh" + class LRURP(BaseReplacementPolicy): type = 'LRURP' cxx_class = 'LRURP' diff --git a/src/mem/cache/replacement_policies/SConscript b/src/mem/cache/replacement_policies/SConscript index c3c8992..31b1d7b 100644 --- a/src/mem/cache/replacement_policies/SConscript +++ b/src/mem/cache/replacement_policies/SConscript @@ -33,5 +33,6 @@ SimObject('ReplacementPolicies.py') Source('base.cc') +Source('fifo_rp.cc') Source('lru_rp.cc') Source('random_rp.cc') diff --git a/src/mem/cache/replacement_policies/fifo_rp.cc b/src/mem/cache/replacement_policies/fifo_rp.cc new file mode 100644 index 000..96ce636 --- /dev/null +++ b/src/mem/cache/replacement_policies/fifo_rp.cc @@ -0,0 +1,70 @@ +/** + * Copyright (c) 2018 Inria + * 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: Daniel Carvalho + */ + +#include "mem/cache/replacement_policies/fifo_rp.hh" + +#include "debug/CacheRepl.hh" + +FIFORP::FIFORP(const Params *p) +: BaseReplacementPolicy(p) +{ +} + +CacheBlk* +FIFORP::getVictim(ReplacementCandidates cands) +{ +// There must be at least one replacement candidate +assert(cands.size() > 0); + +// Visit all candidates to find victim +CacheBlk* blk = cands[0]; +for (auto it = cands.begin(); it != cands.end(); ++it) { +// Stop iteration if found an invalid block +if (!(*it)->isValid()) { +blk = *it; +break; +// Update victim block if necessary +} else if (!(*it)->isValid() or + ((*it)->tickInserted < blk->tickInserted)) { +blk = *it; +} +} + +DPRINTF(CacheRepl, "set %x, way %x: selecting blk for replacement\n", +blk->set, blk->way); + +return blk; +} + +FIFORP* +FIFORPParams::create() +{ +return new FIFORP(this); +} diff --git a/src/mem/cache/replacement_policies/fifo_rp.hh b/src/mem/cache/replacement_policies/fifo_rp.hh new file mode 100644 index 000..7c94491 --- /dev/null +++ b/src/mem/cache/replacement_policies/fifo_rp.hh @@ -0,0 +1,69 @@ +/** + * Copyright (c) 2018 Inria + * 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