dtod.cc revision 10905:a6ca6831e775
13536Sgblack@eecs.umich.edu/* 23536Sgblack@eecs.umich.edu * Copyright (c) 2004-2006 The Regents of The University of Michigan 33536Sgblack@eecs.umich.edu * All rights reserved. 43536Sgblack@eecs.umich.edu * 53536Sgblack@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 63536Sgblack@eecs.umich.edu * modification, are permitted provided that the following conditions are 73536Sgblack@eecs.umich.edu * met: redistributions of source code must retain the above copyright 83536Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 93536Sgblack@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 103536Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 113536Sgblack@eecs.umich.edu * documentation and/or other materials provided with the distribution; 123536Sgblack@eecs.umich.edu * neither the name of the copyright holders nor the names of its 133536Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 143536Sgblack@eecs.umich.edu * this software without specific prior written permission. 153536Sgblack@eecs.umich.edu * 163536Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 173536Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 183536Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 193536Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 203536Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 213536Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 223536Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 233536Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 243536Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 253536Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 263536Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 273536Sgblack@eecs.umich.edu * 283536Sgblack@eecs.umich.edu * Authors: Ali Saidi 293536Sgblack@eecs.umich.edu */ 303536Sgblack@eecs.umich.edu 313536Sgblack@eecs.umich.edu/** @file 328332Snate@binkert.org * Time of date device implementation 338332Snate@binkert.org */ 343536Sgblack@eecs.umich.edu#include <sys/time.h> 353536Sgblack@eecs.umich.edu 363536Sgblack@eecs.umich.edu#include <deque> 373536Sgblack@eecs.umich.edu#include <string> 383536Sgblack@eecs.umich.edu#include <vector> 393536Sgblack@eecs.umich.edu 403536Sgblack@eecs.umich.edu#include "base/time.hh" 415543Ssaidi@eecs.umich.edu#include "base/trace.hh" 425543Ssaidi@eecs.umich.edu#include "config/the_isa.hh" 433536Sgblack@eecs.umich.edu#include "dev/sparc/dtod.hh" 443536Sgblack@eecs.umich.edu#include "dev/platform.hh" 453536Sgblack@eecs.umich.edu#include "mem/packet_access.hh" 463536Sgblack@eecs.umich.edu#include "mem/port.hh" 473536Sgblack@eecs.umich.edu#include "sim/system.hh" 483536Sgblack@eecs.umich.edu 493536Sgblack@eecs.umich.eduusing namespace std; 503536Sgblack@eecs.umich.eduusing namespace TheISA; 513536Sgblack@eecs.umich.edu 523536Sgblack@eecs.umich.eduDumbTOD::DumbTOD(const Params *p) 533536Sgblack@eecs.umich.edu : BasicPioDevice(p, 0x08) 545543Ssaidi@eecs.umich.edu{ 555543Ssaidi@eecs.umich.edu struct tm tm = p->time; 563536Sgblack@eecs.umich.edu todTime = mkutctime(&tm); 573536Sgblack@eecs.umich.edu 583536Sgblack@eecs.umich.edu DPRINTFN("Real-time clock set to %s\n", asctime(&tm)); 593536Sgblack@eecs.umich.edu DPRINTFN("Real-time clock set to %d\n", todTime); 603536Sgblack@eecs.umich.edu} 613536Sgblack@eecs.umich.edu 623536Sgblack@eecs.umich.eduTick 633536Sgblack@eecs.umich.eduDumbTOD::read(PacketPtr pkt) 643536Sgblack@eecs.umich.edu{ 653536Sgblack@eecs.umich.edu assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize); 663536Sgblack@eecs.umich.edu assert(pkt->getSize() == 8); 673536Sgblack@eecs.umich.edu 683536Sgblack@eecs.umich.edu pkt->set(todTime); 693536Sgblack@eecs.umich.edu todTime += 1000; 703536Sgblack@eecs.umich.edu 713536Sgblack@eecs.umich.edu pkt->makeAtomicResponse(); 725543Ssaidi@eecs.umich.edu return pioDelay; 733536Sgblack@eecs.umich.edu} 743536Sgblack@eecs.umich.edu 753536Sgblack@eecs.umich.eduTick 763536Sgblack@eecs.umich.eduDumbTOD::write(PacketPtr pkt) 773536Sgblack@eecs.umich.edu{ 783536Sgblack@eecs.umich.edu panic("Dumb tod device doesn't support writes\n"); 793536Sgblack@eecs.umich.edu} 803536Sgblack@eecs.umich.edu 813536Sgblack@eecs.umich.eduvoid 823536Sgblack@eecs.umich.eduDumbTOD::serialize(CheckpointOut &cp) const 833536Sgblack@eecs.umich.edu{ 843536Sgblack@eecs.umich.edu SERIALIZE_SCALAR(todTime); 853536Sgblack@eecs.umich.edu} 863536Sgblack@eecs.umich.edu 873536Sgblack@eecs.umich.eduvoid 883536Sgblack@eecs.umich.eduDumbTOD::unserialize(CheckpointIn &cp) 893536Sgblack@eecs.umich.edu{ 903536Sgblack@eecs.umich.edu UNSERIALIZE_SCALAR(todTime); 913536Sgblack@eecs.umich.edu} 925543Ssaidi@eecs.umich.edu 935543Ssaidi@eecs.umich.eduDumbTOD * 943536Sgblack@eecs.umich.eduDumbTODParams::create() 953536Sgblack@eecs.umich.edu{ 963536Sgblack@eecs.umich.edu return new DumbTOD(this); 973536Sgblack@eecs.umich.edu} 983536Sgblack@eecs.umich.edu