1/*
2 * Copyright (c) 2012-2013, 2015 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

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43/**
44 * @file
45 * Describes a strided prefetcher.
46 */
47
48#ifndef __MEM_CACHE_PREFETCH_STRIDE_HH__
49#define __MEM_CACHE_PREFETCH_STRIDE_HH__
50
51#include <unordered_map>
52
53#include "mem/cache/prefetch/queued.hh"
54#include "params/StridePrefetcher.hh"
55
56class StridePrefetcher : public QueuedPrefetcher
57{
58 protected:
59 const int maxConf;
60 const int threshConf;

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95 }
96
97 ~PCTable();
98 private:
99 const std::string name() {return _name; }
100 const int pcTableAssoc;
101 const int pcTableSets;
102 const std::string _name;
103 std::unordered_map<int, StrideEntry**> entries;
104
105 StrideEntry** allocateNewContext(int context);
106 };
107 PCTable pcTable;
108
109 bool pcTableHit(Addr pc, bool is_secure, int master_id, StrideEntry* &entry);
110 StrideEntry* pcTableVictim(Addr pc, int master_id);
111
112 Addr pcHash(Addr pc) const;
113 public:
114
115 StridePrefetcher(const StridePrefetcherParams *p);
116
117 void calculatePrefetch(const PacketPtr &pkt, std::vector<Addr> &addresses);
118};
119
120#endif // __MEM_CACHE_PREFETCH_STRIDE_HH__