gem5  v21.0.1.0
•All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Modules Pages
fifo_rp.hh
Go to the documentation of this file.
1 
36 #ifndef __MEM_CACHE_REPLACEMENT_POLICIES_FIFO_RP_HH__
37 #define __MEM_CACHE_REPLACEMENT_POLICIES_FIFO_RP_HH__
38 
39 #include "base/types.hh"
40 #include "mem/cache/replacement_policies/base.hh"
41 
42 struct FIFORPParams;
43 
44 namespace ReplacementPolicy {
45 
46 class FIFO : public Base
47 {
48  protected:
50  struct FIFOReplData : ReplacementData
51  {
53  Tick tickInserted;
54 
58  FIFOReplData() : tickInserted(0) {}
59  };
60 
61  public:
62  typedef FIFORPParams Params;
63  FIFO(const Params &p);
64  ~FIFO() = default;
65 
72  void invalidate(const std::shared_ptr<ReplacementData>& replacement_data)
73  const override;
74 
81  void touch(const std::shared_ptr<ReplacementData>& replacement_data) const
82  override;
83 
90  void reset(const std::shared_ptr<ReplacementData>& replacement_data) const
91  override;
92 
99  ReplaceableEntry* getVictim(const ReplacementCandidates& candidates) const
100  override;
101 
107  std::shared_ptr<ReplacementData> instantiateEntry() override;
108 };
109 
110 } // namespace ReplacementPolicy
111 
112 #endif // __MEM_CACHE_REPLACEMENT_POLICIES_FIFO_RP_HH__
ReplacementPolicy::FIFO::instantiateEntry
std::shared_ptr< ReplacementData > instantiateEntry() override
Instantiate a replacement data entry.
Definition: fifo_rp.cc:89
ReplaceableEntry
A replaceable entry is a basic entry in a 2d table-like structure that needs to have replacement func...
Definition: replaceable_entry.hh:57
ReplacementPolicy::FIFO::FIFOReplData
FIFO-specific implementation of replacement data.
Definition: fifo_rp.hh:50
ReplacementPolicy::FIFO::reset
void reset(const std::shared_ptr< ReplacementData > &replacement_data) const override
Reset replacement data.
Definition: fifo_rp.cc:60
Tick
uint64_t Tick
Tick count type.
Definition: types.hh:59
std::vector
STL vector class.
Definition: stl.hh:37
ReplacementPolicy::FIFO::Params
FIFORPParams Params
Definition: fifo_rp.hh:62
ReplacementPolicy
Copyright (c) 2018-2020 Inria All rights reserved.
Definition: stride.hh:64
ReplacementPolicy::FIFO::FIFOReplData::tickInserted
Tick tickInserted
Tick on which the entry was inserted.
Definition: fifo_rp.hh:53
ReplacementPolicy::ReplacementData
The replacement data needed by replacement policies.
Definition: replaceable_entry.hh:43
ReplacementPolicy::FIFO
Definition: fifo_rp.hh:46
ReplacementPolicy::Base::Params
BaseReplacementPolicyParams Params
Definition: base.hh:51
ReplacementPolicy::Base
A common base class of cache replacement policy objects.
Definition: base.hh:48
base.hh
ReplacementPolicy::FIFO::touch
void touch(const std::shared_ptr< ReplacementData > &replacement_data) const override
Touch an entry to update its replacement data.
Definition: fifo_rp.cc:54
ReplacementPolicy::FIFO::FIFO
FIFO(const Params &p)
Definition: fifo_rp.cc:39
ReplacementPolicy::FIFO::getVictim
ReplaceableEntry * getVictim(const ReplacementCandidates &candidates) const override
Find replacement victim using insertion timestamps.
Definition: fifo_rp.cc:68
ReplacementPolicy::FIFO::invalidate
void invalidate(const std::shared_ptr< ReplacementData > &replacement_data) const override
Invalidate replacement data to set it as the next probable victim.
Definition: fifo_rp.cc:45
types.hh
ReplacementPolicy::FIFO::~FIFO
~FIFO()=default
MipsISA::p
Bitfield< 0 > p
Definition: pra_constants.hh:323
ReplacementPolicy::FIFO::FIFOReplData::FIFOReplData
FIFOReplData()
Default constructor.
Definition: fifo_rp.hh:58
Generated on Tue Jun 22 2021 15:28:29 for gem5 by doxygen 1.8.17