| /* |
| * Copyright (c) 2009 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 an associative set |
| */ |
| |
| #ifndef __CACHESET_HH__ |
| #define __CACHESET_HH__ |
| |
| #include <cassert> |
| |
| #include "mem/cache/blk.hh" // base class |
| |
| /** |
| * An associative set of cache blocks. |
| */ |
| class CacheSet |
| { |
| public: |
| /** The associativity of this set. */ |
| int assoc; |
| |
| /** Cache blocks in this set, maintained in LRU order 0 = MRU. */ |
| CacheBlk **blks; |
| |
| /** |
| * Find a block matching the tag in this set. |
| * @param asid The address space ID. |
| * @param tag The Tag to find. |
| * @return Pointer to the block if found. |
| */ |
| CacheBlk* findBlk(Addr tag) const; |
| |
| /** |
| * Move the given block to the head of the list. |
| * @param blk The block to move. |
| */ |
| void moveToHead(CacheBlk *blk); |
| |
| /** |
| * Move the given block to the tail of the list. |
| * @param blk The block to move |
| */ |
| void moveToTail(CacheBlk *blk); |
| |
| }; |
| |
| #endif |