gem5
v21.2.1.1
mem
cache
replacement_policies
base.hh
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#ifndef __MEM_CACHE_REPLACEMENT_POLICIES_BASE_HH__
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#define __MEM_CACHE_REPLACEMENT_POLICIES_BASE_HH__
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#include <memory>
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#include "
base/compiler.hh
"
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#include "
mem/cache/replacement_policies/replaceable_entry.hh
"
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#include "
mem/packet.hh
"
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#include "params/BaseReplacementPolicy.hh"
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#include "
sim/sim_object.hh
"
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namespace
gem5
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{
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typedef
std::vector<ReplaceableEntry*>
ReplacementCandidates
;
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GEM5_DEPRECATED_NAMESPACE
(ReplacementPolicy, replacement_policy);
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namespace
replacement_policy
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{
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class
Base
:
public
SimObject
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{
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public
:
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typedef
BaseReplacementPolicyParams
Params
;
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Base
(
const
Params
&
p
) :
SimObject
(
p
) {}
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virtual
~Base
() =
default
;
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virtual
void
invalidate
(
const
std::shared_ptr<ReplacementData>&
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replacement_data) = 0;
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virtual
void
touch
(
const
std::shared_ptr<ReplacementData>&
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replacement_data,
const
PacketPtr
pkt)
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{
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touch
(replacement_data);
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}
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virtual
void
touch
(
const
std::shared_ptr<ReplacementData>&
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replacement_data)
const
= 0;
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virtual
void
reset
(
const
std::shared_ptr<ReplacementData>&
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replacement_data,
const
PacketPtr
pkt)
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{
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reset
(replacement_data);
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}
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virtual
void
reset
(
const
std::shared_ptr<ReplacementData>&
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replacement_data)
const
= 0;
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virtual
ReplaceableEntry
*
getVictim
(
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const
ReplacementCandidates
& candidates)
const
= 0;
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virtual
std::shared_ptr<ReplacementData>
instantiateEntry
() = 0;
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};
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}
// namespace replacement_policy
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}
// namespace gem5
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#endif // __MEM_CACHE_REPLACEMENT_POLICIES_BASE_HH__
gem5::replacement_policy::Base::Params
BaseReplacementPolicyParams Params
Definition:
base.hh:58
gem5::replacement_policy::Base::reset
virtual void reset(const std::shared_ptr< ReplacementData > &replacement_data, const PacketPtr pkt)
Reset replacement data.
Definition:
base.hh:90
gem5::replacement_policy::Base::~Base
virtual ~Base()=default
std::vector
STL vector class.
Definition:
stl.hh:37
gem5::replacement_policy::Base::instantiateEntry
virtual std::shared_ptr< ReplacementData > instantiateEntry()=0
Instantiate a replacement data entry.
packet.hh
gem5::ReplacementCandidates
std::vector< ReplaceableEntry * > ReplacementCandidates
Replacement candidates as chosen by the indexing policy.
Definition:
base.hh:46
replaceable_entry.hh
sim_object.hh
gem5::Packet
A Packet is used to encapsulate a transfer between two objects in the memory system (e....
Definition:
packet.hh:283
gem5::MipsISA::p
Bitfield< 0 > p
Definition:
pra_constants.hh:326
gem5::replacement_policy::Base::getVictim
virtual ReplaceableEntry * getVictim(const ReplacementCandidates &candidates) const =0
Find replacement victim among candidates.
compiler.hh
gem5::SimObject
Abstract superclass for simulation objects.
Definition:
sim_object.hh:146
gem5::replacement_policy::Base
A common base class of cache replacement policy objects.
Definition:
base.hh:55
gem5::GEM5_DEPRECATED_NAMESPACE
GEM5_DEPRECATED_NAMESPACE(GuestABI, guest_abi)
gem5::replacement_policy::Base::Base
Base(const Params &p)
Definition:
base.hh:59
gem5::replacement_policy::Base::touch
virtual void touch(const std::shared_ptr< ReplacementData > &replacement_data, const PacketPtr pkt)
Update replacement data.
Definition:
base.hh:76
gem5::ReplaceableEntry
A replaceable entry is a basic entry in a 2d table-like structure that needs to have replacement func...
Definition:
replaceable_entry.hh:63
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition:
tlb.cc:60
gem5::replacement_policy::Base::invalidate
virtual void invalidate(const std::shared_ptr< ReplacementData > &replacement_data)=0
Invalidate replacement data to set it as the next probable victim.
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