1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Erik Hallnor
29 * Ron Dreslinski
30 */
31
32/**
33 * @file
34 * Declaration of a common base class for cache tagstore objects.
35 */
36
37#ifndef __BASE_TAGS_HH__
38#define __BASE_TAGS_HH__
39
40#include <string>
41
42#include "base/callback.hh"
43#include "base/statistics.hh"
44
45class BaseCache;
46
47/**
48 * A common base class of Cache tagstore objects.
49 */
50class BaseTags
51{
52 protected:
53 /** Pointer to the parent cache. */
54 BaseCache *cache;
55
56 /** Local copy of the parent cache name. Used for DPRINTF. */
57 std::string objName;
58
59 /**
60 * The number of tags that need to be touched to meet the warmup
61 * percentage.
62 */
63 int warmupBound;
64 /** Marked true when the cache is warmed up. */
65 bool warmedUp;
66
67 /** the number of blocks in the cache */
68 unsigned numBlocks;
69
70 // Statistics
71 /**
72 * @addtogroup CacheStatistics
73 * @{
74 */
75
76 /** Number of replacements of valid blocks per thread. */
77 Stats::Vector replacements;
78 /** Per cycle average of the number of tags that hold valid data. */
79 Stats::Average tagsInUse;
80
81 /** The total number of references to a block before it is replaced. */
82 Stats::Scalar totalRefs;
83
84 /**
85 * The number of reference counts sampled. This is different from
86 * replacements because we sample all the valid blocks when the simulator
87 * exits.
88 */
89 Stats::Scalar sampledRefs;
90
91 /**
92 * Average number of references to a block before is was replaced.
93 * @todo This should change to an average stat once we have them.
94 */
95 Stats::Formula avgRefs;
96
97 /** The cycle that the warmup percentage was hit. */
98 Stats::Scalar warmupCycle;
99
| 1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Erik Hallnor
29 * Ron Dreslinski
30 */
31
32/**
33 * @file
34 * Declaration of a common base class for cache tagstore objects.
35 */
36
37#ifndef __BASE_TAGS_HH__
38#define __BASE_TAGS_HH__
39
40#include <string>
41
42#include "base/callback.hh"
43#include "base/statistics.hh"
44
45class BaseCache;
46
47/**
48 * A common base class of Cache tagstore objects.
49 */
50class BaseTags
51{
52 protected:
53 /** Pointer to the parent cache. */
54 BaseCache *cache;
55
56 /** Local copy of the parent cache name. Used for DPRINTF. */
57 std::string objName;
58
59 /**
60 * The number of tags that need to be touched to meet the warmup
61 * percentage.
62 */
63 int warmupBound;
64 /** Marked true when the cache is warmed up. */
65 bool warmedUp;
66
67 /** the number of blocks in the cache */
68 unsigned numBlocks;
69
70 // Statistics
71 /**
72 * @addtogroup CacheStatistics
73 * @{
74 */
75
76 /** Number of replacements of valid blocks per thread. */
77 Stats::Vector replacements;
78 /** Per cycle average of the number of tags that hold valid data. */
79 Stats::Average tagsInUse;
80
81 /** The total number of references to a block before it is replaced. */
82 Stats::Scalar totalRefs;
83
84 /**
85 * The number of reference counts sampled. This is different from
86 * replacements because we sample all the valid blocks when the simulator
87 * exits.
88 */
89 Stats::Scalar sampledRefs;
90
91 /**
92 * Average number of references to a block before is was replaced.
93 * @todo This should change to an average stat once we have them.
94 */
95 Stats::Formula avgRefs;
96
97 /** The cycle that the warmup percentage was hit. */
98 Stats::Scalar warmupCycle;
99
|
104 Stats::Formula avgOccs;
105
106 /**
107 * @}
108 */
109
110 public:
111
112 /**
113 * Destructor.
114 */
115 virtual ~BaseTags() {}
116
117 /**
118 * Set the parent cache back pointer. Also copies the cache name to
119 * objName.
120 * @param _cache Pointer to parent cache.
121 */
122 void setCache(BaseCache *_cache);
123
124 /**
125 * Return the parent cache name.
126 * @return the parent cache name.
127 */
128 const std::string &name() const
129 {
130 return objName;
131 }
132
133 /**
134 * Register local statistics.
135 * @param name The name to preceed each statistic name.
136 */
137 void regStats(const std::string &name);
138
139 /**
140 * Average in the reference count for valid blocks when the simulation
141 * exits.
142 */
143 virtual void cleanupRefs() {}
144
145 /**
146 *iterated through all blocks and clear all locks
147 *Needed to clear all lock tracking at once
148 */
149 virtual void clearLocks() {}
150};
151
152class BaseTagsCallback : public Callback
153{
154 BaseTags *tags;
155 public:
156 BaseTagsCallback(BaseTags *t) : tags(t) {}
157 virtual void process() { tags->cleanupRefs(); };
158};
159
160#endif //__BASE_TAGS_HH__
| 104 Stats::Formula avgOccs;
105
106 /**
107 * @}
108 */
109
110 public:
111
112 /**
113 * Destructor.
114 */
115 virtual ~BaseTags() {}
116
117 /**
118 * Set the parent cache back pointer. Also copies the cache name to
119 * objName.
120 * @param _cache Pointer to parent cache.
121 */
122 void setCache(BaseCache *_cache);
123
124 /**
125 * Return the parent cache name.
126 * @return the parent cache name.
127 */
128 const std::string &name() const
129 {
130 return objName;
131 }
132
133 /**
134 * Register local statistics.
135 * @param name The name to preceed each statistic name.
136 */
137 void regStats(const std::string &name);
138
139 /**
140 * Average in the reference count for valid blocks when the simulation
141 * exits.
142 */
143 virtual void cleanupRefs() {}
144
145 /**
146 *iterated through all blocks and clear all locks
147 *Needed to clear all lock tracking at once
148 */
149 virtual void clearLocks() {}
150};
151
152class BaseTagsCallback : public Callback
153{
154 BaseTags *tags;
155 public:
156 BaseTagsCallback(BaseTags *t) : tags(t) {}
157 virtual void process() { tags->cleanupRefs(); };
158};
159
160#endif //__BASE_TAGS_HH__
|