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