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 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Copyright (c) 2003-2005 The Regents of The University of Michigan 15 * All rights reserved. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions are 19 * met: redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer; 21 * redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution; 24 * neither the name of the copyright holders nor the names of its 25 * contributors may be used to endorse or promote products derived from 26 * this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 39 * 40 * Authors: Erik Hallnor 41 * Ron Dreslinski 42 */ 43 44/** 45 * @file 46 * Declaration of a common base class for cache tagstore objects. 47 */ 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"
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183 184 /** 185 * Find a block using the memory address 186 */ 187 virtual CacheBlk * findBlock(Addr addr, bool is_secure) const = 0; 188 189 /** 190 * Calculate the block offset of an address. 191 * @param addr the address to get the offset of. 192 * @return the block offset. 193 */ 194 int extractBlkOffset(Addr addr) const 195 { 196 return (addr & (Addr)(blkSize-1)); 197 } 198 199 virtual void invalidate(CacheBlk *blk) = 0; 200 201 virtual CacheBlk* accessBlock(Addr addr, bool is_secure, Cycles &lat, 202 int context_src) = 0; 203 204 virtual Addr extractTag(Addr addr) const = 0; 205 206 virtual void insertBlock(PacketPtr pkt, CacheBlk *blk) = 0; 207 208 virtual Addr regenerateBlkAddr(Addr tag, unsigned set) const = 0; 209 210 virtual CacheBlk* findVictim(Addr addr) = 0; 211 212 virtual int extractSet(Addr addr) const = 0; 213 214 virtual void forEachBlk(CacheBlkVisitor &visitor) = 0; |