base.cc revision 10466:73b7549d979e
1/* 2 * Copyright (c) 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 * Definitions of BaseTags. 47 */ 48 49#include "cpu/smt.hh" //maxThreadsPerCPU 50#include "mem/cache/tags/base.hh" 51#include "mem/cache/base.hh" 52#include "sim/sim_exit.hh" 53 54using namespace std; 55 56BaseTags::BaseTags(const Params *p) 57 : ClockedObject(p), blkSize(p->block_size), size(p->size), 58 hitLatency(p->hit_latency), cache(nullptr), warmupBound(0), 59 warmedUp(false), numBlocks(0) 60{ 61} 62 63void 64BaseTags::setCache(BaseCache *_cache) 65{ 66 assert(!cache); 67 cache = _cache; 68} 69 70void 71BaseTags::regStats() 72{ 73 using namespace Stats; 74 replacements 75 .init(maxThreadsPerCPU) 76 .name(name() + ".replacements") 77 .desc("number of replacements") 78 .flags(total) 79 ; 80 81 tagsInUse 82 .name(name() + ".tagsinuse") 83 .desc("Cycle average of tags in use") 84 ; 85 86 totalRefs 87 .name(name() + ".total_refs") 88 .desc("Total number of references to valid blocks.") 89 ; 90 91 sampledRefs 92 .name(name() + ".sampled_refs") 93 .desc("Sample count of references to valid blocks.") 94 ; 95 96 avgRefs 97 .name(name() + ".avg_refs") 98 .desc("Average number of references to valid blocks.") 99 ; 100 101 avgRefs = totalRefs/sampledRefs; 102 103 warmupCycle 104 .name(name() + ".warmup_cycle") 105 .desc("Cycle when the warmup percentage was hit.") 106 ; 107 108 occupancies 109 .init(cache->system->maxMasters()) 110 .name(name() + ".occ_blocks") 111 .desc("Average occupied blocks per requestor") 112 .flags(nozero | nonan) 113 ; 114 for (int i = 0; i < cache->system->maxMasters(); i++) { 115 occupancies.subname(i, cache->system->getMasterName(i)); 116 } 117 118 avgOccs 119 .name(name() + ".occ_percent") 120 .desc("Average percentage of cache occupancy") 121 .flags(nozero | total) 122 ; 123 for (int i = 0; i < cache->system->maxMasters(); i++) { 124 avgOccs.subname(i, cache->system->getMasterName(i)); 125 } 126 127 avgOccs = occupancies / Stats::constant(numBlocks); 128 129 occupanciesTaskId 130 .init(ContextSwitchTaskId::NumTaskId) 131 .name(name() + ".occ_task_id_blocks") 132 .desc("Occupied blocks per task id") 133 .flags(nozero | nonan) 134 ; 135 136 ageTaskId 137 .init(ContextSwitchTaskId::NumTaskId, 5) 138 .name(name() + ".age_task_id_blocks") 139 .desc("Occupied blocks per task id") 140 .flags(nozero | nonan) 141 ; 142 143 percentOccsTaskId 144 .name(name() + ".occ_task_id_percent") 145 .desc("Percentage of cache occupancy per task id") 146 .flags(nozero) 147 ; 148 149 percentOccsTaskId = occupanciesTaskId / Stats::constant(numBlocks); 150 151 tagAccesses 152 .name(name() + ".tag_accesses") 153 .desc("Number of tag accesses") 154 ; 155 156 dataAccesses 157 .name(name() + ".data_accesses") 158 .desc("Number of data accesses") 159 ; 160 161 registerDumpCallback(new BaseTagsDumpCallback(this)); 162 registerExitCallback(new BaseTagsCallback(this)); 163} 164