base.cc revision 12722
12810SN/A/* 211893Snikos.nikoleris@arm.com * Copyright (c) 2013,2016 ARM Limited 39796Sprakash.ramrakhyani@arm.com * All rights reserved. 49796Sprakash.ramrakhyani@arm.com * 59796Sprakash.ramrakhyani@arm.com * The license below extends only to copyright in the software and shall 69796Sprakash.ramrakhyani@arm.com * not be construed as granting a license to any other intellectual 79796Sprakash.ramrakhyani@arm.com * property including but not limited to intellectual property relating 89796Sprakash.ramrakhyani@arm.com * to a hardware implementation of the functionality of the software 99796Sprakash.ramrakhyani@arm.com * licensed hereunder. You may use the software subject to the license 109796Sprakash.ramrakhyani@arm.com * terms below provided that you ensure that this notice is replicated 119796Sprakash.ramrakhyani@arm.com * unmodified and in its entirety in all distributions of the software, 129796Sprakash.ramrakhyani@arm.com * modified or unmodified, in source code or in binary form. 139796Sprakash.ramrakhyani@arm.com * 142810SN/A * Copyright (c) 2003-2005 The Regents of The University of Michigan 152810SN/A * All rights reserved. 162810SN/A * 172810SN/A * Redistribution and use in source and binary forms, with or without 182810SN/A * modification, are permitted provided that the following conditions are 192810SN/A * met: redistributions of source code must retain the above copyright 202810SN/A * notice, this list of conditions and the following disclaimer; 212810SN/A * redistributions in binary form must reproduce the above copyright 222810SN/A * notice, this list of conditions and the following disclaimer in the 232810SN/A * documentation and/or other materials provided with the distribution; 242810SN/A * neither the name of the copyright holders nor the names of its 252810SN/A * contributors may be used to endorse or promote products derived from 262810SN/A * this software without specific prior written permission. 272810SN/A * 282810SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 292810SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 302810SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 312810SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 322810SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 332810SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 342810SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 352810SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 362810SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 372810SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 382810SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 392810SN/A * 402810SN/A * Authors: Erik Hallnor 412810SN/A * Ron Dreslinski 422810SN/A */ 432810SN/A 442810SN/A/** 452810SN/A * @file 462810SN/A * Definitions of BaseTags. 472810SN/A */ 482810SN/A 4911486Snikos.nikoleris@arm.com#include "mem/cache/tags/base.hh" 5011486Snikos.nikoleris@arm.com 515338Sstever@gmail.com#include "mem/cache/base.hh" 522810SN/A#include "sim/sim_exit.hh" 532810SN/A 549796Sprakash.ramrakhyani@arm.comBaseTags::BaseTags(const Params *p) 5511893Snikos.nikoleris@arm.com : ClockedObject(p), blkSize(p->block_size), blkMask(blkSize - 1), 5611893Snikos.nikoleris@arm.com size(p->size), 5711722Ssophiane.senni@gmail.com lookupLatency(p->tag_latency), 5811722Ssophiane.senni@gmail.com accessLatency(p->sequential_access ? 5911722Ssophiane.senni@gmail.com p->tag_latency + p->data_latency : 6011722Ssophiane.senni@gmail.com std::max(p->tag_latency, p->data_latency)), 6112513Sodanrc@yahoo.com.br cache(nullptr), 6212513Sodanrc@yahoo.com.br warmupBound((p->warmup_percentage/100.0) * (p->size / p->block_size)), 6312629Sodanrc@yahoo.com.br warmedUp(false), numBlocks(p->size / p->block_size), 6412629Sodanrc@yahoo.com.br dataBlks(new uint8_t[p->size]) // Allocate data storage in one big chunk 659796Sprakash.ramrakhyani@arm.com{ 669796Sprakash.ramrakhyani@arm.com} 679796Sprakash.ramrakhyani@arm.com 682810SN/Avoid 692810SN/ABaseTags::setCache(BaseCache *_cache) 702810SN/A{ 7110360Sandreas.hansson@arm.com assert(!cache); 722810SN/A cache = _cache; 732810SN/A} 742810SN/A 752810SN/Avoid 7612636Sodanrc@yahoo.com.brBaseTags::insertBlock(PacketPtr pkt, CacheBlk *blk) 7712636Sodanrc@yahoo.com.br{ 7812722Snikos.nikoleris@arm.com assert(!blk->isValid()); 7912722Snikos.nikoleris@arm.com 8012636Sodanrc@yahoo.com.br // Get address 8112636Sodanrc@yahoo.com.br Addr addr = pkt->getAddr(); 8212636Sodanrc@yahoo.com.br 8312636Sodanrc@yahoo.com.br // Previous block, if existed, has been removed, and now we have 8412636Sodanrc@yahoo.com.br // to insert the new one 8512636Sodanrc@yahoo.com.br 8612636Sodanrc@yahoo.com.br // Deal with what we are bringing in 8712636Sodanrc@yahoo.com.br MasterID master_id = pkt->req->masterId(); 8812636Sodanrc@yahoo.com.br assert(master_id < cache->system->maxMasters()); 8912636Sodanrc@yahoo.com.br occupancies[master_id]++; 9012636Sodanrc@yahoo.com.br 9112691Sodanrc@yahoo.com.br // Insert block with tag, src master id and task id 9212691Sodanrc@yahoo.com.br blk->insert(extractTag(addr), pkt->isSecure(), master_id, 9312691Sodanrc@yahoo.com.br pkt->req->taskId()); 9412636Sodanrc@yahoo.com.br 9512703Snikos.nikoleris@arm.com tagsInUse++; 9612703Snikos.nikoleris@arm.com if (!warmedUp && tagsInUse.value() >= warmupBound) { 9712703Snikos.nikoleris@arm.com warmedUp = true; 9812703Snikos.nikoleris@arm.com warmupCycle = curTick(); 9912703Snikos.nikoleris@arm.com } 10012703Snikos.nikoleris@arm.com 10112636Sodanrc@yahoo.com.br // We only need to write into one tag and one data block. 10212636Sodanrc@yahoo.com.br tagAccesses += 1; 10312636Sodanrc@yahoo.com.br dataAccesses += 1; 10412636Sodanrc@yahoo.com.br} 10512636Sodanrc@yahoo.com.br 10612636Sodanrc@yahoo.com.brvoid 1079796Sprakash.ramrakhyani@arm.comBaseTags::regStats() 1082810SN/A{ 10911522Sstephan.diestelhorst@arm.com ClockedObject::regStats(); 11011522Sstephan.diestelhorst@arm.com 1112810SN/A using namespace Stats; 11211522Sstephan.diestelhorst@arm.com 1132810SN/A tagsInUse 1149796Sprakash.ramrakhyani@arm.com .name(name() + ".tagsinuse") 1152810SN/A .desc("Cycle average of tags in use") 1162810SN/A ; 1172810SN/A 1182810SN/A totalRefs 1199796Sprakash.ramrakhyani@arm.com .name(name() + ".total_refs") 1202810SN/A .desc("Total number of references to valid blocks.") 1212810SN/A ; 1222810SN/A 1232810SN/A sampledRefs 1249796Sprakash.ramrakhyani@arm.com .name(name() + ".sampled_refs") 1252810SN/A .desc("Sample count of references to valid blocks.") 1262810SN/A ; 1272810SN/A 1282810SN/A avgRefs 1299796Sprakash.ramrakhyani@arm.com .name(name() + ".avg_refs") 1302810SN/A .desc("Average number of references to valid blocks.") 1312810SN/A ; 1322810SN/A 1332810SN/A avgRefs = totalRefs/sampledRefs; 1342810SN/A 1352810SN/A warmupCycle 1369796Sprakash.ramrakhyani@arm.com .name(name() + ".warmup_cycle") 1372810SN/A .desc("Cycle when the warmup percentage was hit.") 1382810SN/A ; 1392810SN/A 1406978SLisa.Hsu@amd.com occupancies 1418833Sdam.sunwoo@arm.com .init(cache->system->maxMasters()) 1429796Sprakash.ramrakhyani@arm.com .name(name() + ".occ_blocks") 1438833Sdam.sunwoo@arm.com .desc("Average occupied blocks per requestor") 1446978SLisa.Hsu@amd.com .flags(nozero | nonan) 1456978SLisa.Hsu@amd.com ; 1468833Sdam.sunwoo@arm.com for (int i = 0; i < cache->system->maxMasters(); i++) { 1478833Sdam.sunwoo@arm.com occupancies.subname(i, cache->system->getMasterName(i)); 1488833Sdam.sunwoo@arm.com } 1496978SLisa.Hsu@amd.com 1506978SLisa.Hsu@amd.com avgOccs 1519796Sprakash.ramrakhyani@arm.com .name(name() + ".occ_percent") 1526978SLisa.Hsu@amd.com .desc("Average percentage of cache occupancy") 1538833Sdam.sunwoo@arm.com .flags(nozero | total) 1546978SLisa.Hsu@amd.com ; 1558833Sdam.sunwoo@arm.com for (int i = 0; i < cache->system->maxMasters(); i++) { 1568833Sdam.sunwoo@arm.com avgOccs.subname(i, cache->system->getMasterName(i)); 1578833Sdam.sunwoo@arm.com } 1586978SLisa.Hsu@amd.com 1596978SLisa.Hsu@amd.com avgOccs = occupancies / Stats::constant(numBlocks); 1606978SLisa.Hsu@amd.com 16110024Sdam.sunwoo@arm.com occupanciesTaskId 16210024Sdam.sunwoo@arm.com .init(ContextSwitchTaskId::NumTaskId) 16310024Sdam.sunwoo@arm.com .name(name() + ".occ_task_id_blocks") 16410024Sdam.sunwoo@arm.com .desc("Occupied blocks per task id") 16510024Sdam.sunwoo@arm.com .flags(nozero | nonan) 16610024Sdam.sunwoo@arm.com ; 16710024Sdam.sunwoo@arm.com 16810024Sdam.sunwoo@arm.com ageTaskId 16910024Sdam.sunwoo@arm.com .init(ContextSwitchTaskId::NumTaskId, 5) 17010024Sdam.sunwoo@arm.com .name(name() + ".age_task_id_blocks") 17110024Sdam.sunwoo@arm.com .desc("Occupied blocks per task id") 17210024Sdam.sunwoo@arm.com .flags(nozero | nonan) 17310024Sdam.sunwoo@arm.com ; 17410024Sdam.sunwoo@arm.com 17510024Sdam.sunwoo@arm.com percentOccsTaskId 17610024Sdam.sunwoo@arm.com .name(name() + ".occ_task_id_percent") 17710024Sdam.sunwoo@arm.com .desc("Percentage of cache occupancy per task id") 17810024Sdam.sunwoo@arm.com .flags(nozero) 17910024Sdam.sunwoo@arm.com ; 18010024Sdam.sunwoo@arm.com 18110024Sdam.sunwoo@arm.com percentOccsTaskId = occupanciesTaskId / Stats::constant(numBlocks); 18210024Sdam.sunwoo@arm.com 18310025Stimothy.jones@arm.com tagAccesses 18410025Stimothy.jones@arm.com .name(name() + ".tag_accesses") 18510025Stimothy.jones@arm.com .desc("Number of tag accesses") 18610025Stimothy.jones@arm.com ; 18710025Stimothy.jones@arm.com 18810025Stimothy.jones@arm.com dataAccesses 18910025Stimothy.jones@arm.com .name(name() + ".data_accesses") 19010025Stimothy.jones@arm.com .desc("Number of data accesses") 19110025Stimothy.jones@arm.com ; 19210025Stimothy.jones@arm.com 19310024Sdam.sunwoo@arm.com registerDumpCallback(new BaseTagsDumpCallback(this)); 1942810SN/A registerExitCallback(new BaseTagsCallback(this)); 1952810SN/A} 196