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mru_rp.hh
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1 
36 #ifndef __MEM_CACHE_REPLACEMENT_POLICIES_MRU_RP_HH__
37 #define __MEM_CACHE_REPLACEMENT_POLICIES_MRU_RP_HH__
38 
39 #include "base/types.hh"
40 #include "mem/cache/replacement_policies/base.hh"
41 
42 struct MRURPParams;
43 
44 class MRURP : public BaseReplacementPolicy
45 {
46  protected:
48  struct MRUReplData : ReplacementData
49  {
51  Tick lastTouchTick;
52 
56  MRUReplData() : lastTouchTick(0) {}
57  };
58 
59  public:
61  typedef MRURPParams Params;
62 
66  MRURP(const Params *p);
67 
71  ~MRURP() {}
72 
79  void invalidate(const std::shared_ptr<ReplacementData>& replacement_data)
80  const override;
81 
88  void touch(const std::shared_ptr<ReplacementData>& replacement_data) const
89  override;
90 
97  void reset(const std::shared_ptr<ReplacementData>& replacement_data) const
98  override;
99 
106  ReplaceableEntry* getVictim(const ReplacementCandidates& candidates) const
107  override;
108 
114  std::shared_ptr<ReplacementData> instantiateEntry() override;
115 };
116 
117 #endif // __MEM_CACHE_REPLACEMENT_POLICIES_MRU_RP_HH__
ReplaceableEntry
A replaceable entry is a basic entry in a 2d table-like structure that needs to have replacement func...
Definition: replaceable_entry.hh:53
BaseReplacementPolicy::Params
BaseReplacementPolicyParams Params
Convenience typedef.
Definition: base.hh:52
MRURP
Definition: mru_rp.hh:44
Tick
uint64_t Tick
Tick count type.
Definition: types.hh:63
std::vector
STL vector class.
Definition: stl.hh:37
ReplacementData
Copyright (c) 2018 Inria All rights reserved.
Definition: replaceable_entry.hh:41
MRURP::MRUReplData::MRUReplData
MRUReplData()
Default constructor.
Definition: mru_rp.hh:56
MRURP::invalidate
void invalidate(const std::shared_ptr< ReplacementData > &replacement_data) const override
Invalidate replacement data to set it as the next probable victim.
Definition: mru_rp.cc:43
MRURP::MRUReplData::lastTouchTick
Tick lastTouchTick
Tick on which the entry was last touched.
Definition: mru_rp.hh:51
BaseReplacementPolicy
A common base class of cache replacement policy objects.
Definition: base.hh:46
MRURP::instantiateEntry
std::shared_ptr< ReplacementData > instantiateEntry() override
Instantiate a replacement data entry.
Definition: mru_rp.cc:94
base.hh
MRURP::Params
MRURPParams Params
Convenience typedef.
Definition: mru_rp.hh:61
MRURP::getVictim
ReplaceableEntry * getVictim(const ReplacementCandidates &candidates) const override
Find replacement victim using access timestamps.
Definition: mru_rp.cc:68
MRURP::MRUReplData
MRU-specific implementation of replacement data.
Definition: mru_rp.hh:48
MRURP::~MRURP
~MRURP()
Destructor.
Definition: mru_rp.hh:71
types.hh
MRURP::touch
void touch(const std::shared_ptr< ReplacementData > &replacement_data) const override
Touch an entry to update its replacement data.
Definition: mru_rp.cc:52
MipsISA::p
Bitfield< 0 > p
Definition: pra_constants.hh:323
MRURP::reset
void reset(const std::shared_ptr< ReplacementData > &replacement_data) const override
Reset replacement data.
Definition: mru_rp.cc:60
MRURP::MRURP
MRURP(const Params *p)
Construct and initiliaze this replacement policy.
Definition: mru_rp.cc:37
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