system.hh revision 5268
15222Sksewell@umich.edu/* 25268Sksewell@umich.edu * Copyright (c) 2004-2006 The Regents of The University of Michigan 35254Sksewell@umich.edu * All rights reserved. 45222Sksewell@umich.edu * 55254Sksewell@umich.edu * Redistribution and use in source and binary forms, with or without 65254Sksewell@umich.edu * modification, are permitted provided that the following conditions are 75254Sksewell@umich.edu * met: redistributions of source code must retain the above copyright 85254Sksewell@umich.edu * notice, this list of conditions and the following disclaimer; 95254Sksewell@umich.edu * redistributions in binary form must reproduce the above copyright 105254Sksewell@umich.edu * notice, this list of conditions and the following disclaimer in the 115254Sksewell@umich.edu * documentation and/or other materials provided with the distribution; 125254Sksewell@umich.edu * neither the name of the copyright holders nor the names of its 135254Sksewell@umich.edu * contributors may be used to endorse or promote products derived from 145254Sksewell@umich.edu * this software without specific prior written permission. 155222Sksewell@umich.edu * 165254Sksewell@umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 175254Sksewell@umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 185254Sksewell@umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 195254Sksewell@umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 205254Sksewell@umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 215254Sksewell@umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 225254Sksewell@umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 235254Sksewell@umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 245254Sksewell@umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 255254Sksewell@umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 265254Sksewell@umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 275222Sksewell@umich.edu * 285254Sksewell@umich.edu * Authors: Ali Saidi 295254Sksewell@umich.edu * Lisa Hsu 305254Sksewell@umich.edu * Nathan Binkert 315222Sksewell@umich.edu */ 325222Sksewell@umich.edu 335222Sksewell@umich.edu#ifndef __ARCH_MIPS_LINUX_SYSTEM_HH__ 345222Sksewell@umich.edu#define __ARCH_MIPS_LINUX_SYSTEM_HH__ 355222Sksewell@umich.edu 365222Sksewell@umich.educlass ThreadContext; 375222Sksewell@umich.edu 385222Sksewell@umich.educlass BreakPCEvent; 395222Sksewell@umich.educlass IdleStartEvent; 405222Sksewell@umich.edu 415222Sksewell@umich.edu#include "arch/mips/idle_event.hh" 425222Sksewell@umich.edu#include "arch/mips/system.hh" 435222Sksewell@umich.edu#include "kern/linux/events.hh" 445222Sksewell@umich.edu#include "params/LinuxMipsSystem.hh" 455222Sksewell@umich.edu 465222Sksewell@umich.eduusing namespace MipsISA; 475222Sksewell@umich.eduusing namespace Linux; 485222Sksewell@umich.edu 495222Sksewell@umich.edu/** 505222Sksewell@umich.edu * This class contains linux specific system code (Loading, Events). 515222Sksewell@umich.edu * It points to objects that are the system binaries to load and patches them 525222Sksewell@umich.edu * appropriately to work in simulator. 535222Sksewell@umich.edu */ 545222Sksewell@umich.educlass LinuxMipsSystem : public MipsSystem 555222Sksewell@umich.edu{ 565222Sksewell@umich.edu private: 575222Sksewell@umich.edu class SkipDelayLoopEvent : public SkipFuncEvent 585222Sksewell@umich.edu { 595222Sksewell@umich.edu public: 605222Sksewell@umich.edu SkipDelayLoopEvent(PCEventQueue *q, const std::string &desc, Addr addr) 615222Sksewell@umich.edu : SkipFuncEvent(q, desc, addr) {} 625222Sksewell@umich.edu virtual void process(ThreadContext *tc); 635222Sksewell@umich.edu }; 645222Sksewell@umich.edu 655222Sksewell@umich.edu class PrintThreadInfo : public PCEvent 665222Sksewell@umich.edu { 675222Sksewell@umich.edu public: 685222Sksewell@umich.edu PrintThreadInfo(PCEventQueue *q, const std::string &desc, Addr addr) 695222Sksewell@umich.edu : PCEvent(q, desc, addr) {} 705222Sksewell@umich.edu virtual void process(ThreadContext *tc); 715222Sksewell@umich.edu }; 725222Sksewell@umich.edu 735222Sksewell@umich.edu 745222Sksewell@umich.edu /** 755222Sksewell@umich.edu * Addresses defining where the kernel bootloader places various 765222Sksewell@umich.edu * elements. Details found in include/asm-mips/system.h 775222Sksewell@umich.edu */ 785222Sksewell@umich.edu Addr KernelStart; // Lookup the symbol swapper_pg_dir 795222Sksewell@umich.edu 805222Sksewell@umich.edu public: 815222Sksewell@umich.edu Addr InitStack() const { return KernelStart + 0x02000; } 825222Sksewell@umich.edu Addr EmptyPGT() const { return KernelStart + 0x04000; } 835222Sksewell@umich.edu Addr EmptyPGE() const { return KernelStart + 0x08000; } 845222Sksewell@umich.edu Addr ZeroPGE() const { return KernelStart + 0x0A000; } 855222Sksewell@umich.edu Addr StartAddr() const { return KernelStart + 0x10000; } 865222Sksewell@umich.edu 875222Sksewell@umich.edu Addr Param() const { return ZeroPGE() + 0x0; } 885222Sksewell@umich.edu Addr CommandLine() const { return Param() + 0x0; } 895222Sksewell@umich.edu Addr InitrdStart() const { return Param() + 0x100; } 905222Sksewell@umich.edu Addr InitrdSize() const { return Param() + 0x108; } 915222Sksewell@umich.edu static const int CommandLineSize = 256; 925222Sksewell@umich.edu 935222Sksewell@umich.edu private: 945222Sksewell@umich.edu#ifndef NDEBUG 955222Sksewell@umich.edu /** Event to halt the simulator if the kernel calls panic() */ 965222Sksewell@umich.edu BreakPCEvent *kernelPanicEvent; 975222Sksewell@umich.edu 985222Sksewell@umich.edu /** Event to halt the simulator if the kernel calls die_if_kernel */ 995222Sksewell@umich.edu BreakPCEvent *kernelDieEvent; 1005222Sksewell@umich.edu#endif 1015222Sksewell@umich.edu 1025222Sksewell@umich.edu /** 1035222Sksewell@umich.edu * Event to skip determine_cpu_caches() because we don't support 1045222Sksewell@umich.edu * the IPRs that the code can access to figure out cache sizes 1055222Sksewell@umich.edu */ 1065222Sksewell@umich.edu SkipFuncEvent *skipCacheProbeEvent; 1075222Sksewell@umich.edu 1085222Sksewell@umich.edu /** PC based event to skip the ide_delay_50ms() call */ 1095222Sksewell@umich.edu SkipFuncEvent *skipIdeDelay50msEvent; 1105222Sksewell@umich.edu 1115222Sksewell@umich.edu /** 1125222Sksewell@umich.edu * PC based event to skip the dprink() call and emulate its 1135222Sksewell@umich.edu * functionality 1145222Sksewell@umich.edu */ 1155222Sksewell@umich.edu DebugPrintkEvent *debugPrintkEvent; 1165222Sksewell@umich.edu 1175222Sksewell@umich.edu /** 1185222Sksewell@umich.edu * Skip calculate_delay_loop() rather than waiting for this to be 1195222Sksewell@umich.edu * calculated 1205222Sksewell@umich.edu */ 1215222Sksewell@umich.edu SkipDelayLoopEvent *skipDelayLoopEvent; 1225222Sksewell@umich.edu 1235222Sksewell@umich.edu /** 1245222Sksewell@umich.edu * Event to print information about thread switches if the trace flag 1255222Sksewell@umich.edu * Thread is set 1265222Sksewell@umich.edu */ 1275222Sksewell@umich.edu PrintThreadInfo *printThreadEvent; 1285222Sksewell@umich.edu 1295222Sksewell@umich.edu /** Grab the PCBB of the idle process when it starts */ 1305222Sksewell@umich.edu IdleStartEvent *idleStartEvent; 1315222Sksewell@umich.edu 1325222Sksewell@umich.edu public: 1335222Sksewell@umich.edu typedef LinuxMipsSystemParams Params; 1345222Sksewell@umich.edu LinuxMipsSystem(Params *p); 1355222Sksewell@umich.edu ~LinuxMipsSystem(); 1365222Sksewell@umich.edu 1375222Sksewell@umich.edu void setDelayLoop(ThreadContext *tc); 1385222Sksewell@umich.edu}; 1395222Sksewell@umich.edu 1405222Sksewell@umich.edu#endif // __ARCH_MIPS_LINUX_SYSTEM_HH__ 141