port_proxy.cc revision 14196
11758Ssaidi@eecs.umich.edu/* 21758Ssaidi@eecs.umich.edu * Copyright (c) 2012, 2018 ARM Limited 31758Ssaidi@eecs.umich.edu * All rights reserved 41758Ssaidi@eecs.umich.edu * 51758Ssaidi@eecs.umich.edu * The license below extends only to copyright in the software and shall 61758Ssaidi@eecs.umich.edu * not be construed as granting a license to any other intellectual 71758Ssaidi@eecs.umich.edu * property including but not limited to intellectual property relating 81758Ssaidi@eecs.umich.edu * to a hardware implementation of the functionality of the software 91758Ssaidi@eecs.umich.edu * licensed hereunder. You may use the software subject to the license 101758Ssaidi@eecs.umich.edu * terms below provided that you ensure that this notice is replicated 111758Ssaidi@eecs.umich.edu * unmodified and in its entirety in all distributions of the software, 121758Ssaidi@eecs.umich.edu * modified or unmodified, in source code or in binary form. 131758Ssaidi@eecs.umich.edu * 141758Ssaidi@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 151758Ssaidi@eecs.umich.edu * modification, are permitted provided that the following conditions are 161758Ssaidi@eecs.umich.edu * met: redistributions of source code must retain the above copyright 171758Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 181758Ssaidi@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 191758Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 201758Ssaidi@eecs.umich.edu * documentation and/or other materials provided with the distribution; 211758Ssaidi@eecs.umich.edu * neither the name of the copyright holders nor the names of its 221758Ssaidi@eecs.umich.edu * contributors may be used to endorse or promote products derived from 231758Ssaidi@eecs.umich.edu * this software without specific prior written permission. 241758Ssaidi@eecs.umich.edu * 251758Ssaidi@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 261758Ssaidi@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 271049Sbinkertn@umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 281049Sbinkertn@umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 291049Sbinkertn@umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 301049Sbinkertn@umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 311049Sbinkertn@umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 321049Sbinkertn@umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 331049Sbinkertn@umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 341049Sbinkertn@umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 351049Sbinkertn@umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 361049Sbinkertn@umich.edu * 371049Sbinkertn@umich.edu * Authors: Andreas Hansson 381049Sbinkertn@umich.edu */ 391049Sbinkertn@umich.edu 401049Sbinkertn@umich.edu#include "mem/port_proxy.hh" 411049Sbinkertn@umich.edu 421049Sbinkertn@umich.edu#include "base/chunk_generator.hh" 431049Sbinkertn@umich.edu 441049Sbinkertn@umich.eduvoid 451049Sbinkertn@umich.eduPortProxy::readBlobPhys(Addr addr, Request::Flags flags, 461049Sbinkertn@umich.edu void *p, int size) const 471049Sbinkertn@umich.edu{ 481049Sbinkertn@umich.edu for (ChunkGenerator gen(addr, size, _cacheLineSize); !gen.done(); 491049Sbinkertn@umich.edu gen.next()) { 501049Sbinkertn@umich.edu 511049Sbinkertn@umich.edu auto req = std::make_shared<Request>( 521049Sbinkertn@umich.edu gen.addr(), gen.size(), flags, Request::funcMasterId); 531049Sbinkertn@umich.edu 541049Sbinkertn@umich.edu Packet pkt(req, MemCmd::ReadReq); 551049Sbinkertn@umich.edu pkt.dataStatic(static_cast<uint8_t *>(p)); 561049Sbinkertn@umich.edu sendFunctional(&pkt); 571049Sbinkertn@umich.edu p = static_cast<uint8_t *>(p) + gen.size(); 581049Sbinkertn@umich.edu } 591049Sbinkertn@umich.edu} 601049Sbinkertn@umich.edu 611049Sbinkertn@umich.eduvoid 621049Sbinkertn@umich.eduPortProxy::writeBlobPhys(Addr addr, Request::Flags flags, 631049Sbinkertn@umich.edu const void *p, int size) const 641049Sbinkertn@umich.edu{ 651049Sbinkertn@umich.edu for (ChunkGenerator gen(addr, size, _cacheLineSize); !gen.done(); 661049Sbinkertn@umich.edu gen.next()) { 671049Sbinkertn@umich.edu 681049Sbinkertn@umich.edu auto req = std::make_shared<Request>( 691049Sbinkertn@umich.edu gen.addr(), gen.size(), flags, Request::funcMasterId); 701049Sbinkertn@umich.edu 711049Sbinkertn@umich.edu Packet pkt(req, MemCmd::WriteReq); 721049Sbinkertn@umich.edu pkt.dataStaticConst(static_cast<const uint8_t *>(p)); 731049Sbinkertn@umich.edu sendFunctional(&pkt); 741049Sbinkertn@umich.edu p = static_cast<const uint8_t *>(p) + gen.size(); 751049Sbinkertn@umich.edu } 761049Sbinkertn@umich.edu} 771049Sbinkertn@umich.edu 781049Sbinkertn@umich.eduvoid 791049Sbinkertn@umich.eduPortProxy::memsetBlobPhys(Addr addr, Request::Flags flags, 801049Sbinkertn@umich.edu uint8_t v, int size) const 811049Sbinkertn@umich.edu{ 821049Sbinkertn@umich.edu // quick and dirty... 831049Sbinkertn@umich.edu uint8_t *buf = new uint8_t[size]; 841049Sbinkertn@umich.edu 851049Sbinkertn@umich.edu std::memset(buf, v, size); 861049Sbinkertn@umich.edu PortProxy::writeBlobPhys(addr, flags, buf, size); 871049Sbinkertn@umich.edu 881049Sbinkertn@umich.edu delete [] buf; 891049Sbinkertn@umich.edu} 901049Sbinkertn@umich.edu 911049Sbinkertn@umich.edubool 921049Sbinkertn@umich.eduPortProxy::tryWriteString(Addr addr, const char *str) const 931049Sbinkertn@umich.edu{ 941049Sbinkertn@umich.edu do { 951049Sbinkertn@umich.edu if (!tryWriteBlob(addr++, str, 1)) 961049Sbinkertn@umich.edu return false; 971049Sbinkertn@umich.edu } while (*str++); 981049Sbinkertn@umich.edu return true; 991049Sbinkertn@umich.edu} 1001049Sbinkertn@umich.edu 1011049Sbinkertn@umich.edubool 1021049Sbinkertn@umich.eduPortProxy::tryReadString(std::string &str, Addr addr) const 1031049Sbinkertn@umich.edu{ 1041881Sbinkertn@umich.edu while (true) { 1051049Sbinkertn@umich.edu uint8_t c; 1061929Sbinkertn@umich.edu if (!tryReadBlob(addr++, &c, 1)) 1071929Sbinkertn@umich.edu return false; 1081929Sbinkertn@umich.edu if (!c) 1091929Sbinkertn@umich.edu return true; 1101929Sbinkertn@umich.edu str += c; 1111929Sbinkertn@umich.edu } 1121929Sbinkertn@umich.edu} 1131929Sbinkertn@umich.edu 1141929Sbinkertn@umich.edubool 1151929Sbinkertn@umich.eduPortProxy::tryReadString(char *str, Addr addr, size_t maxlen) const 1161929Sbinkertn@umich.edu{ 1171929Sbinkertn@umich.edu assert(maxlen); 1181929Sbinkertn@umich.edu while (maxlen--) { 1191929Sbinkertn@umich.edu if (!tryReadBlob(addr++, str, 1)) 1201049Sbinkertn@umich.edu return false; 1211049Sbinkertn@umich.edu if (!*str++) 1221049Sbinkertn@umich.edu return true; 1231049Sbinkertn@umich.edu } 1241049Sbinkertn@umich.edu // We ran out of room, so back up and add a terminator. 1251049Sbinkertn@umich.edu *--str = '\0'; 1261049Sbinkertn@umich.edu return true; 1271049Sbinkertn@umich.edu} 1281049Sbinkertn@umich.edu