1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/*
* Copyright (c) 2004-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Lisa Hsu
*/
/**
* @file
* Declaration of partitioned tag store cache block class.
*/
#ifndef __SPLIT_BLK_HH__
#define __SPLIT_BLK_HH__
#include "mem/cache/cache_blk.hh" // base class
/**
* Split cache block.
*/
class SplitBlk : public CacheBlk {
public:
/** Has this block been touched? Used to aid calculation of warmup time. */
bool isTouched;
/** Has this block been used after being brought in? (for LIFO partition) */
bool isUsed;
/** is this blk a NIC block? (i.e. requested by the NIC) */
bool isNIC;
/** timestamp of the arrival of this block into the cache */
Tick ts;
/** the previous block in the LIFO partition (brought in before than me) */
SplitBlk *prev;
/** the next block in the LIFO partition (brought in later than me) */
SplitBlk *next;
/** which partition this block is in */
int part;
SplitBlk()
: isTouched(false), isUsed(false), isNIC(false), ts(0), prev(NULL), next(NULL),
part(0)
{}
};
#endif
|
