AbstractReplacementPolicy.cc revision 11061:25b53a7195f7
1/* 2 * Copyright (c) 2013 Advanced Micro Devices, Inc 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 * Author: Derek Hower 29 */ 30 31#include "mem/ruby/structures/AbstractReplacementPolicy.hh" 32 33AbstractReplacementPolicy::AbstractReplacementPolicy(const Params * p) 34 : SimObject(p) 35{ 36 m_num_sets = p->size/p->block_size/p->assoc; 37 m_assoc = p->assoc; 38 m_last_ref_ptr = new Tick*[m_num_sets]; 39 for(unsigned i = 0; i < m_num_sets; i++){ 40 m_last_ref_ptr[i] = new Tick[m_assoc]; 41 for(unsigned j = 0; j < m_assoc; j++){ 42 m_last_ref_ptr[i][j] = 0; 43 } 44 } 45} 46 47AbstractReplacementPolicy * 48ReplacementPolicyParams::create() 49{ 50 fatal("Cannot create an AbstractReplacementPolicy"); 51 return NULL; 52} 53 54 55 56AbstractReplacementPolicy::~AbstractReplacementPolicy() 57{ 58 if (m_last_ref_ptr != NULL){ 59 for (unsigned i = 0; i < m_num_sets; i++){ 60 if (m_last_ref_ptr[i] != NULL){ 61 delete[] m_last_ref_ptr[i]; 62 } 63 } 64 delete[] m_last_ref_ptr; 65 } 66} 67 68Tick 69AbstractReplacementPolicy::getLastAccess(int64_t set, int64_t way) 70{ 71 return m_last_ref_ptr[set][way]; 72} 73