1/*
2 * Copyright (c) 2012-2013 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
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated

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48
49#ifndef __BASE_TAGS_HH__
50#define __BASE_TAGS_HH__
51
52#include <string>
53
54#include "base/callback.hh"
55#include "base/statistics.hh"
56#include "params/BaseTags.hh"
57#include "sim/clocked_object.hh"
58
59class BaseCache;
60
61/**
62 * A common base class of Cache tagstore objects.
63 */
64class BaseTags : public ClockedObject
65{
66 protected:
67 /** The block size of the cache. */
68 const unsigned blkSize;
69 /** The size of the cache. */
70 const unsigned size;
71 /** The hit latency of the cache. */
72 const Cycles hitLatency;
73
74 /** Pointer to the parent cache. */
75 BaseCache *cache;
76
77 /**
78 * The number of tags that need to be touched to meet the warmup
79 * percentage.
80 */
81 int warmupBound;
82 /** Marked true when the cache is warmed up. */
83 bool warmedUp;
84

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121 /** Average occ % of each requestor using the cache */
122 Stats::Formula avgOccs;
123
124 /**
125 * @}
126 */
127
128 public:
129 typedef BaseTagsParams Params;
130 BaseTags(const Params *p);
131
132 /**
133 * Destructor.
134 */
135 virtual ~BaseTags() {}
136
137 /**
138 * Set the parent cache back pointer.
139 * @param _cache Pointer to parent cache.
140 */
141 void setCache(BaseCache *_cache);
142
143 /**
144 * Register local statistics.
145 */
146 void regStats();
147
148 /**
149 * Average in the reference count for valid blocks when the simulation
150 * exits.
151 */
152 virtual void cleanupRefs() {}
153
154 /**

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