system.cc revision 2680
11782SN/A/* 21782SN/A * Copyright (c) 2004-2005 The Regents of The University of Michigan 31782SN/A * All rights reserved. 41782SN/A * 51782SN/A * Redistribution and use in source and binary forms, with or without 61782SN/A * modification, are permitted provided that the following conditions are 71782SN/A * met: redistributions of source code must retain the above copyright 81782SN/A * notice, this list of conditions and the following disclaimer; 91782SN/A * redistributions in binary form must reproduce the above copyright 101782SN/A * notice, this list of conditions and the following disclaimer in the 111782SN/A * documentation and/or other materials provided with the distribution; 121782SN/A * neither the name of the copyright holders nor the names of its 131782SN/A * contributors may be used to endorse or promote products derived from 141782SN/A * this software without specific prior written permission. 151782SN/A * 161782SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 171782SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 181782SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 191782SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 201782SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 211782SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 221782SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 231782SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 241782SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 251782SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 261782SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Ben Nash 291782SN/A */ 301782SN/A 311782SN/A/** 321782SN/A * @file 331835SN/A * Modifications for the FreeBSD kernel. 341835SN/A * Based on kern/linux/linux_system.cc. 351782SN/A * 361782SN/A */ 371782SN/A 382158SN/A#include "arch/alpha/system.hh" 392212SN/A#include "arch/alpha/freebsd/system.hh" 401782SN/A#include "base/loader/symtab.hh" 412680Sktlim@umich.edu#include "cpu/thread_context.hh" 422521SN/A#include "mem/physical.hh" 432521SN/A#include "mem/port.hh" 442234SN/A#include "arch/isa_traits.hh" 451782SN/A#include "sim/builder.hh" 462036SN/A#include "sim/byteswap.hh" 472170SN/A#include "arch/vtophys.hh" 481782SN/A 491847SN/A#define TIMER_FREQUENCY 1193180 501847SN/A 511782SN/Ausing namespace std; 522212SN/Ausing namespace AlphaISA; 531782SN/A 542212SN/AFreebsdAlphaSystem::FreebsdAlphaSystem(Params *p) 552158SN/A : AlphaSystem(p) 561782SN/A{ 571782SN/A /** 581823SN/A * Any time DELAY is called just skip the function. 591885SN/A * Shouldn't we actually emulate the delay? 601782SN/A */ 611885SN/A skipDelayEvent = addKernelFuncEvent<SkipFuncEvent>("DELAY"); 621885SN/A skipCalibrateClocks = 631885SN/A addKernelFuncEvent<SkipCalibrateClocksEvent>("calibrate_clocks"); 641782SN/A} 651782SN/A 661821SN/A 672212SN/AFreebsdAlphaSystem::~FreebsdAlphaSystem() 681782SN/A{ 691782SN/A delete skipDelayEvent; 701821SN/A delete skipCalibrateClocks; 711821SN/A} 721821SN/A 731821SN/A 741821SN/Avoid 752680Sktlim@umich.eduFreebsdAlphaSystem::doCalibrateClocks(ThreadContext *tc) 761821SN/A{ 771821SN/A Addr ppc_vaddr = 0; 781821SN/A Addr timer_vaddr = 0; 791821SN/A 802680Sktlim@umich.edu ppc_vaddr = (Addr)tc->readIntReg(ArgumentReg1); 812680Sktlim@umich.edu timer_vaddr = (Addr)tc->readIntReg(ArgumentReg2); 821821SN/A 832521SN/A virtPort.write(ppc_vaddr, (uint32_t)Clock::Frequency); 842521SN/A virtPort.write(timer_vaddr, (uint32_t)TIMER_FREQUENCY); 851782SN/A} 861782SN/A 871782SN/A 881885SN/Avoid 892680Sktlim@umich.eduFreebsdAlphaSystem::SkipCalibrateClocksEvent::process(ThreadContext *tc) 901885SN/A{ 912680Sktlim@umich.edu SkipFuncEvent::process(tc); 922680Sktlim@umich.edu ((FreebsdAlphaSystem *)tc->getSystemPtr())->doCalibrateClocks(tc); 931885SN/A} 941885SN/A 951885SN/A 962212SN/ABEGIN_DECLARE_SIM_OBJECT_PARAMS(FreebsdAlphaSystem) 971782SN/A 981782SN/A Param<Tick> boot_cpu_frequency; 991782SN/A SimObjectParam<PhysicalMemory *> physmem; 1001782SN/A 1011782SN/A Param<string> kernel; 1021782SN/A Param<string> console; 1031782SN/A Param<string> pal; 1041782SN/A 1051782SN/A Param<string> boot_osflags; 1061782SN/A Param<string> readfile; 1071782SN/A Param<unsigned int> init_param; 1081782SN/A 1091782SN/A Param<uint64_t> system_type; 1101782SN/A Param<uint64_t> system_rev; 1111782SN/A 1121782SN/A Param<bool> bin; 1131782SN/A VectorParam<string> binned_fns; 1141782SN/A Param<bool> bin_int; 1151782SN/A 1162212SN/AEND_DECLARE_SIM_OBJECT_PARAMS(FreebsdAlphaSystem) 1171782SN/A 1182212SN/ABEGIN_INIT_SIM_OBJECT_PARAMS(FreebsdAlphaSystem) 1191782SN/A 1201782SN/A INIT_PARAM(boot_cpu_frequency, "Frequency of the boot CPU"), 1211782SN/A INIT_PARAM(physmem, "phsyical memory"), 1221782SN/A INIT_PARAM(kernel, "file that contains the kernel code"), 1231782SN/A INIT_PARAM(console, "file that contains the console code"), 1241782SN/A INIT_PARAM(pal, "file that contains palcode"), 1251782SN/A INIT_PARAM_DFLT(boot_osflags, "flags to pass to the kernel during boot", 1261782SN/A "a"), 1271782SN/A INIT_PARAM_DFLT(readfile, "file to read startup script from", ""), 1281782SN/A INIT_PARAM_DFLT(init_param, "numerical value to pass into simulator", 0), 1291782SN/A INIT_PARAM_DFLT(system_type, "Type of system we are emulating", 34), 1301782SN/A INIT_PARAM_DFLT(system_rev, "Revision of system we are emulating", 1<<10), 1311782SN/A INIT_PARAM_DFLT(bin, "is this system to be binned", false), 1321782SN/A INIT_PARAM(binned_fns, "functions to be broken down and binned"), 1331782SN/A INIT_PARAM_DFLT(bin_int, "is interrupt code binned seperately?", true) 1341782SN/A 1352212SN/AEND_INIT_SIM_OBJECT_PARAMS(FreebsdAlphaSystem) 1361782SN/A 1372212SN/ACREATE_SIM_OBJECT(FreebsdAlphaSystem) 1381782SN/A{ 1392158SN/A AlphaSystem::Params *p = new AlphaSystem::Params; 1401782SN/A p->name = getInstanceName(); 1411782SN/A p->boot_cpu_frequency = boot_cpu_frequency; 1421782SN/A p->physmem = physmem; 1431782SN/A p->kernel_path = kernel; 1441782SN/A p->console_path = console; 1451782SN/A p->palcode = pal; 1461782SN/A p->boot_osflags = boot_osflags; 1471782SN/A p->init_param = init_param; 1481782SN/A p->readfile = readfile; 1491782SN/A p->system_type = system_type; 1501782SN/A p->system_rev = system_rev; 1511782SN/A p->bin = bin; 1521782SN/A p->binned_fns = binned_fns; 1531782SN/A p->bin_int = bin_int; 1542212SN/A return new FreebsdAlphaSystem(p); 1551782SN/A} 1561782SN/A 1572212SN/AREGISTER_SIM_OBJECT("FreebsdAlphaSystem", FreebsdAlphaSystem) 1581782SN/A 159