system.cc revision 8775:1e3ca5d77b53
1/* 2 * Copyright (c) 2002-2005 The Regents of The University of Michigan 3 * Copyright (c) 2007 MIPS Technologies, Inc. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer; 10 * redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution; 13 * neither the name of the copyright holders nor the names of its 14 * contributors may be used to endorse or promote products derived from 15 * this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * Authors: Ali Saidi 30 * Nathan Binkert 31 * Jaidev Patwardhan 32 */ 33 34#include "arch/mips/system.hh" 35#include "arch/vtophys.hh" 36#include "base/loader/hex_file.hh" 37#include "base/loader/object_file.hh" 38#include "base/loader/symtab.hh" 39#include "base/trace.hh" 40#include "mem/physical.hh" 41#include "mem/vport.hh" 42#include "params/MipsSystem.hh" 43#include "sim/byteswap.hh" 44 45using namespace LittleEndianGuest; 46 47MipsSystem::MipsSystem(Params *p) : System(p) 48{ 49 if (p->bare_iron == true) { 50 hexFile = new HexFile(params()->hex_file_name); 51 if (!hexFile->loadSections(functionalPort)) 52 panic("Could not load hex file\n"); 53 } 54 55 Addr addr = 0; 56 57 consoleSymtab = new SymbolTable; 58 59 60 /** 61 * Load the console code into memory 62 */ 63 // Load Console Code 64 console = createObjectFile(params()->console); 65 66 warn("console code is located at: %s\n", params()->console); 67 68 if (console == NULL) 69 fatal("Could not load console file %s", params()->console); 70 //Load program sections into memory 71 console->loadSections(functionalPort, loadAddrMask); 72 73 //load symbols 74 if (!console->loadGlobalSymbols(consoleSymtab)) 75 panic("could not load console symbols\n"); 76 77 if (!console->loadGlobalSymbols(debugSymbolTable)) 78 panic("could not load console symbols\n"); 79 80 81#ifndef NDEBUG 82 consolePanicEvent = addConsoleFuncEvent<BreakPCEvent>("panic"); 83#endif 84 85 /** 86 * Copy the osflags (kernel arguments) into the consoles 87 * memory. (Presently Linux does not use the console service 88 * routine to get these command line arguments, but Tru64 and 89 * others do.) 90 */ 91 if (consoleSymtab->findAddress("env_booted_osflags", addr)) { 92 warn("writing addr starting from %#x", addr); 93 virtPort->writeBlob(addr, (uint8_t*)params()->boot_osflags.c_str(), 94 strlen(params()->boot_osflags.c_str())); 95 } 96 97 /** 98 * Set the hardware reset parameter block system type and revision 99 * information to Tsunami. 100 */ 101 if (consoleSymtab->findAddress("m5_rpb", addr)) { 102 uint64_t data; 103 data = htog(params()->system_type); 104 virtPort->write(addr + 0x50, data); 105 data = htog(params()->system_rev); 106 virtPort->write(addr + 0x58, data); 107 } else { 108 panic("could not find hwrpb\n"); 109 } 110} 111 112MipsSystem::~MipsSystem() 113{ 114} 115 116Addr 117MipsSystem::fixFuncEventAddr(Addr addr) 118{ 119 return addr; 120} 121 122void 123MipsSystem::setMipsAccess(Addr access) 124{} 125 126bool 127MipsSystem::breakpoint() 128{ 129 return 0; 130} 131 132void 133MipsSystem::serialize(std::ostream &os) 134{ 135 System::serialize(os); 136} 137 138 139void 140MipsSystem::unserialize(Checkpoint *cp, const std::string §ion) 141{ 142 System::unserialize(cp,section); 143} 144 145MipsSystem * 146MipsSystemParams::create() 147{ 148 return new MipsSystem(this); 149} 150 151