gem5 v24.0.0.0
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compressed_tags.hh
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1/*
2 * Copyright (c) 2023-2024 ARM Limited
3 * All rights reserved.
4 *
5 * The license below extends only to copyright in the software and shall
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8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2018 Inria
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
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26 * this software without specific prior written permission.
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39 */
40
46#ifndef __MEM_CACHE_TAGS_COMPRESSED_TAGS_HH__
47#define __MEM_CACHE_TAGS_COMPRESSED_TAGS_HH__
48
49#include <vector>
50
53
54namespace gem5
55{
56
57class BaseCache;
58class CacheBlk;
59struct CompressedTagsParams;
60
83{
84 private:
89
90 public:
92 typedef CompressedTagsParams Params;
93
97 CompressedTags(const Params &p);
98
102 virtual ~CompressedTags() {};
103
107 void tagsInit() override;
108
120 CacheBlk* findVictim(Addr addr, const bool is_secure,
121 const std::size_t compressed_size,
122 std::vector<CacheBlk*>& evict_blks,
123 const uint64_t partition_id) override;
124
134 bool anyBlk(std::function<bool(CacheBlk &)> visitor) override;
135};
136
137} // namespace gem5
138
139#endif //__MEM_CACHE_TAGS_COMPRESSED_TAGS_HH__
A Basic Cache block.
Definition cache_blk.hh:72
A CompressedTags cache tag store.
CompressedTags(const Params &p)
Construct and initialize this tag store.
virtual ~CompressedTags()
Destructor.
CacheBlk * findVictim(Addr addr, const bool is_secure, const std::size_t compressed_size, std::vector< CacheBlk * > &evict_blks, const uint64_t partition_id) override
Find replacement victim based on address.
void tagsInit() override
Initialize blocks as SuperBlk and CompressionBlk instances.
std::vector< CompressionBlk > blks
The cache blocks.
bool anyBlk(std::function< bool(CacheBlk &)> visitor) override
Find if any of the sub-blocks satisfies a condition.
CompressedTagsParams Params
Convenience typedef.
std::vector< SuperBlk > superBlks
The cache superblocks.
A SectorTags cache tag store.
STL vector class.
Definition stl.hh:37
Bitfield< 0 > p
Bitfield< 3 > addr
Definition types.hh:84
Copyright (c) 2024 - Pranith Kumar Copyright (c) 2020 Inria All rights reserved.
Definition binary32.hh:36
uint64_t Addr
Address type This will probably be moved somewhere else in the near future.
Definition types.hh:147
Declaration of a sector tag store.
Copyright (c) 2018 Inria All rights reserved.

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