physical.cc revision 8931
12391SN/A/* 28931Sandreas.hansson@arm.com * Copyright (c) 2012 ARM Limited 37733SAli.Saidi@ARM.com * All rights reserved 47733SAli.Saidi@ARM.com * 57733SAli.Saidi@ARM.com * The license below extends only to copyright in the software and shall 67733SAli.Saidi@ARM.com * not be construed as granting a license to any other intellectual 77733SAli.Saidi@ARM.com * property including but not limited to intellectual property relating 87733SAli.Saidi@ARM.com * to a hardware implementation of the functionality of the software 97733SAli.Saidi@ARM.com * licensed hereunder. You may use the software subject to the license 107733SAli.Saidi@ARM.com * terms below provided that you ensure that this notice is replicated 117733SAli.Saidi@ARM.com * unmodified and in its entirety in all distributions of the software, 127733SAli.Saidi@ARM.com * modified or unmodified, in source code or in binary form. 137733SAli.Saidi@ARM.com * 142391SN/A * Redistribution and use in source and binary forms, with or without 152391SN/A * modification, are permitted provided that the following conditions are 162391SN/A * met: redistributions of source code must retain the above copyright 172391SN/A * notice, this list of conditions and the following disclaimer; 182391SN/A * redistributions in binary form must reproduce the above copyright 192391SN/A * notice, this list of conditions and the following disclaimer in the 202391SN/A * documentation and/or other materials provided with the distribution; 212391SN/A * neither the name of the copyright holders nor the names of its 222391SN/A * contributors may be used to endorse or promote products derived from 232391SN/A * this software without specific prior written permission. 242391SN/A * 252391SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 262391SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 272391SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 282391SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 292391SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 302391SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 312391SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 322391SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 332391SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 342391SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 352391SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 362665Ssaidi@eecs.umich.edu * 378931Sandreas.hansson@arm.com * Authors: Andreas Hansson 382391SN/A */ 392391SN/A 408931Sandreas.hansson@arm.com#include "debug/BusAddrRanges.hh" 412394SN/A#include "mem/physical.hh" 422394SN/A 432391SN/Ausing namespace std; 442391SN/A 458931Sandreas.hansson@arm.comPhysicalMemory::PhysicalMemory(const vector<AbstractMemory*>& _memories) : 468931Sandreas.hansson@arm.com size(0) 472391SN/A{ 488931Sandreas.hansson@arm.com for (vector<AbstractMemory*>::const_iterator m = _memories.begin(); 498931Sandreas.hansson@arm.com m != _memories.end(); ++m) { 508931Sandreas.hansson@arm.com // only add the memory if it is part of the global address map 518931Sandreas.hansson@arm.com if ((*m)->isInAddrMap()) { 528931Sandreas.hansson@arm.com memories.push_back(*m); 532391SN/A 548931Sandreas.hansson@arm.com // calculate the total size once and for all 558931Sandreas.hansson@arm.com size += (*m)->size(); 568931Sandreas.hansson@arm.com 578931Sandreas.hansson@arm.com // add the range to our interval tree and make sure it does not 588931Sandreas.hansson@arm.com // intersect an existing range 598931Sandreas.hansson@arm.com if (addrMap.insert((*m)->getAddrRange(), *m) == addrMap.end()) 608931Sandreas.hansson@arm.com fatal("Memory address range for %s is overlapping\n", 618931Sandreas.hansson@arm.com (*m)->name()); 628931Sandreas.hansson@arm.com } 638931Sandreas.hansson@arm.com DPRINTF(BusAddrRanges, 648931Sandreas.hansson@arm.com "Skipping memory %s that is not in global address map\n", 658931Sandreas.hansson@arm.com (*m)->name()); 668931Sandreas.hansson@arm.com } 678931Sandreas.hansson@arm.com rangeCache.invalidate(); 688931Sandreas.hansson@arm.com} 698931Sandreas.hansson@arm.com 708931Sandreas.hansson@arm.combool 718931Sandreas.hansson@arm.comPhysicalMemory::isMemAddr(Addr addr) const 728931Sandreas.hansson@arm.com{ 738931Sandreas.hansson@arm.com // see if the address is within the last matched range 748931Sandreas.hansson@arm.com if (addr != rangeCache) { 758931Sandreas.hansson@arm.com // lookup in the interval tree 768931Sandreas.hansson@arm.com range_map<Addr, AbstractMemory*>::const_iterator r = 778931Sandreas.hansson@arm.com addrMap.find(addr); 788931Sandreas.hansson@arm.com if (r == addrMap.end()) { 798931Sandreas.hansson@arm.com // not in the cache, and not in the tree 808931Sandreas.hansson@arm.com return false; 818931Sandreas.hansson@arm.com } 828931Sandreas.hansson@arm.com // the range is in the tree, update the cache 838931Sandreas.hansson@arm.com rangeCache = r->first; 848851Sandreas.hansson@arm.com } 858851Sandreas.hansson@arm.com 868931Sandreas.hansson@arm.com assert(addrMap.find(addr) != addrMap.end()); 875477Snate@binkert.org 888931Sandreas.hansson@arm.com // either matched the cache or found in the tree 898931Sandreas.hansson@arm.com return true; 908931Sandreas.hansson@arm.com} 917730SAli.Saidi@ARM.com 928931Sandreas.hansson@arm.comAddrRangeList 938931Sandreas.hansson@arm.comPhysicalMemory::getConfAddrRanges() const 948931Sandreas.hansson@arm.com{ 958931Sandreas.hansson@arm.com // this could be done once in the constructor, but since it is unlikely to 968931Sandreas.hansson@arm.com // be called more than once the iteration should not be a problem 978931Sandreas.hansson@arm.com AddrRangeList ranges; 988931Sandreas.hansson@arm.com for (vector<AbstractMemory*>::const_iterator m = memories.begin(); 998931Sandreas.hansson@arm.com m != memories.end(); ++m) { 1008931Sandreas.hansson@arm.com if ((*m)->isConfReported()) { 1018931Sandreas.hansson@arm.com ranges.push_back((*m)->getAddrRange()); 1028931Sandreas.hansson@arm.com } 1037730SAli.Saidi@ARM.com } 1042391SN/A 1058931Sandreas.hansson@arm.com return ranges; 1062391SN/A} 1072391SN/A 1082541SN/Avoid 1098931Sandreas.hansson@arm.comPhysicalMemory::access(PacketPtr pkt) 1102541SN/A{ 1118931Sandreas.hansson@arm.com assert(pkt->isRequest()); 1128931Sandreas.hansson@arm.com Addr addr = pkt->getAddr(); 1138931Sandreas.hansson@arm.com range_map<Addr, AbstractMemory*>::const_iterator m = addrMap.find(addr); 1148931Sandreas.hansson@arm.com assert(m != addrMap.end()); 1158931Sandreas.hansson@arm.com m->second->access(pkt); 1162391SN/A} 1172391SN/A 1188719SAli.Saidi@ARM.comvoid 1198931Sandreas.hansson@arm.comPhysicalMemory::functionalAccess(PacketPtr pkt) 1208719SAli.Saidi@ARM.com{ 1218931Sandreas.hansson@arm.com assert(pkt->isRequest()); 1228931Sandreas.hansson@arm.com Addr addr = pkt->getAddr(); 1238931Sandreas.hansson@arm.com range_map<Addr, AbstractMemory*>::const_iterator m = addrMap.find(addr); 1248931Sandreas.hansson@arm.com assert(m != addrMap.end()); 1258931Sandreas.hansson@arm.com m->second->functionalAccess(pkt); 1268719SAli.Saidi@ARM.com} 127