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Diffstat (limited to 'src/mem/cache/tags/split_blk.hh')
-rw-r--r-- | src/mem/cache/tags/split_blk.hh | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/mem/cache/tags/split_blk.hh b/src/mem/cache/tags/split_blk.hh new file mode 100644 index 000000000..64d903579 --- /dev/null +++ b/src/mem/cache/tags/split_blk.hh @@ -0,0 +1,68 @@ +/* + * 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. pktuested 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 + |