system.cc revision 8706
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 384762Snate@binkert.org#include "arch/alpha/freebsd/system.hh" 392158SN/A#include "arch/alpha/system.hh" 404762Snate@binkert.org#include "arch/isa_traits.hh" 414762Snate@binkert.org#include "arch/vtophys.hh" 421782SN/A#include "base/loader/symtab.hh" 432680Sktlim@umich.edu#include "cpu/thread_context.hh" 448706Sandreas.hansson@arm.com#include "mem/fs_translating_port_proxy.hh" 452036SN/A#include "sim/byteswap.hh" 461782SN/A 471847SN/A#define TIMER_FREQUENCY 1193180 481847SN/A 491782SN/Ausing namespace std; 502212SN/Ausing namespace AlphaISA; 511782SN/A 522212SN/AFreebsdAlphaSystem::FreebsdAlphaSystem(Params *p) 532158SN/A : AlphaSystem(p) 541782SN/A{ 551782SN/A /** 561823SN/A * Any time DELAY is called just skip the function. 571885SN/A * Shouldn't we actually emulate the delay? 581782SN/A */ 591885SN/A skipDelayEvent = addKernelFuncEvent<SkipFuncEvent>("DELAY"); 601885SN/A skipCalibrateClocks = 611885SN/A addKernelFuncEvent<SkipCalibrateClocksEvent>("calibrate_clocks"); 621782SN/A} 631782SN/A 642212SN/AFreebsdAlphaSystem::~FreebsdAlphaSystem() 651782SN/A{ 661782SN/A delete skipDelayEvent; 671821SN/A delete skipCalibrateClocks; 681821SN/A} 691821SN/A 701821SN/Avoid 712680Sktlim@umich.eduFreebsdAlphaSystem::doCalibrateClocks(ThreadContext *tc) 721821SN/A{ 731821SN/A Addr ppc_vaddr = 0; 741821SN/A Addr timer_vaddr = 0; 751821SN/A 765958Sgblack@eecs.umich.edu ppc_vaddr = (Addr)tc->readIntReg(17); 775958Sgblack@eecs.umich.edu timer_vaddr = (Addr)tc->readIntReg(18); 781821SN/A 798706Sandreas.hansson@arm.com virtProxy->write(ppc_vaddr, (uint32_t)SimClock::Frequency); 808706Sandreas.hansson@arm.com virtProxy->write(timer_vaddr, (uint32_t)TIMER_FREQUENCY); 811782SN/A} 821782SN/A 831885SN/Avoid 842680Sktlim@umich.eduFreebsdAlphaSystem::SkipCalibrateClocksEvent::process(ThreadContext *tc) 851885SN/A{ 862680Sktlim@umich.edu SkipFuncEvent::process(tc); 872680Sktlim@umich.edu ((FreebsdAlphaSystem *)tc->getSystemPtr())->doCalibrateClocks(tc); 881885SN/A} 891885SN/A 904762Snate@binkert.orgFreebsdAlphaSystem * 914762Snate@binkert.orgFreebsdAlphaSystemParams::create() 921782SN/A{ 934762Snate@binkert.org return new FreebsdAlphaSystem(this); 941782SN/A} 95