simple_disk.cc revision 2665
111308Santhony.gutierrez@amd.com/* 211308Santhony.gutierrez@amd.com * Copyright (c) 2001-2005 The Regents of The University of Michigan 311308Santhony.gutierrez@amd.com * All rights reserved. 411308Santhony.gutierrez@amd.com * 511308Santhony.gutierrez@amd.com * Redistribution and use in source and binary forms, with or without 611308Santhony.gutierrez@amd.com * modification, are permitted provided that the following conditions are 711308Santhony.gutierrez@amd.com * met: redistributions of source code must retain the above copyright 811308Santhony.gutierrez@amd.com * notice, this list of conditions and the following disclaimer; 911308Santhony.gutierrez@amd.com * redistributions in binary form must reproduce the above copyright 1011308Santhony.gutierrez@amd.com * notice, this list of conditions and the following disclaimer in the 1111308Santhony.gutierrez@amd.com * documentation and/or other materials provided with the distribution; 1211308Santhony.gutierrez@amd.com * neither the name of the copyright holders nor the names of its 1311308Santhony.gutierrez@amd.com * contributors may be used to endorse or promote products derived from 1411308Santhony.gutierrez@amd.com * this software without specific prior written permission. 1511308Santhony.gutierrez@amd.com * 1611308Santhony.gutierrez@amd.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1711308Santhony.gutierrez@amd.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1811308Santhony.gutierrez@amd.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1911308Santhony.gutierrez@amd.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2011308Santhony.gutierrez@amd.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2111308Santhony.gutierrez@amd.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2211308Santhony.gutierrez@amd.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2311308Santhony.gutierrez@amd.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2411308Santhony.gutierrez@amd.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2511308Santhony.gutierrez@amd.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2611308Santhony.gutierrez@amd.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2711308Santhony.gutierrez@amd.com * 2811308Santhony.gutierrez@amd.com * Authors: Nathan Binkert 2911308Santhony.gutierrez@amd.com */ 3011308Santhony.gutierrez@amd.com 3111308Santhony.gutierrez@amd.com/* @file 3211308Santhony.gutierrez@amd.com * Simple disk interface for the system console 3311308Santhony.gutierrez@amd.com */ 3411308Santhony.gutierrez@amd.com 3511308Santhony.gutierrez@amd.com#include <sys/types.h> 3611308Santhony.gutierrez@amd.com#include <sys/uio.h> 3711308Santhony.gutierrez@amd.com#include <fcntl.h> 3811308Santhony.gutierrez@amd.com#include <unistd.h> 3911308Santhony.gutierrez@amd.com 4011308Santhony.gutierrez@amd.com#include <cstring> 4111308Santhony.gutierrez@amd.com#include <string> 4211308Santhony.gutierrez@amd.com 4311308Santhony.gutierrez@amd.com#include "base/misc.hh" 4411308Santhony.gutierrez@amd.com#include "base/trace.hh" 4511308Santhony.gutierrez@amd.com#include "dev/disk_image.hh" 4611308Santhony.gutierrez@amd.com#include "dev/simple_disk.hh" 4711308Santhony.gutierrez@amd.com#include "mem/port.hh" 4811308Santhony.gutierrez@amd.com#include "sim/builder.hh" 4911308Santhony.gutierrez@amd.com#include "sim/system.hh" 5011308Santhony.gutierrez@amd.com 5111640Salexandru.dutu@amd.comusing namespace std; 5211308Santhony.gutierrez@amd.com 5311308Santhony.gutierrez@amd.comSimpleDisk::SimpleDisk(const string &name, System *sys, DiskImage *img) 5411308Santhony.gutierrez@amd.com : SimObject(name), system(sys), image(img) 5511308Santhony.gutierrez@amd.com{} 5611308Santhony.gutierrez@amd.com 5711308Santhony.gutierrez@amd.comSimpleDisk::~SimpleDisk() 5811308Santhony.gutierrez@amd.com{} 5911308Santhony.gutierrez@amd.com 6011308Santhony.gutierrez@amd.com 6111308Santhony.gutierrez@amd.comvoid 6211308Santhony.gutierrez@amd.comSimpleDisk::read(Addr addr, baddr_t block, int count) const 6311308Santhony.gutierrez@amd.com{ 6411308Santhony.gutierrez@amd.com uint8_t *data = new uint8_t[SectorSize * count]; 6511308Santhony.gutierrez@amd.com 6611308Santhony.gutierrez@amd.com if (count & (SectorSize - 1)) 6711308Santhony.gutierrez@amd.com panic("Not reading a multiple of a sector (count = %d)", count); 6811308Santhony.gutierrez@amd.com 6911308Santhony.gutierrez@amd.com for (int i = 0, j = 0; i < count; i += SectorSize, j++) 7011308Santhony.gutierrez@amd.com image->read(data + i, block + j); 7111308Santhony.gutierrez@amd.com 7211308Santhony.gutierrez@amd.com system->functionalPort.writeBlob(addr, data, count); 7311308Santhony.gutierrez@amd.com 7411308Santhony.gutierrez@amd.com DPRINTF(SimpleDisk, "read block=%#x len=%d\n", (uint64_t)block, count); 7511308Santhony.gutierrez@amd.com DDUMP(SimpleDiskData, data, count); 7611308Santhony.gutierrez@amd.com 7711308Santhony.gutierrez@amd.com delete data; 7811308Santhony.gutierrez@amd.com} 7911308Santhony.gutierrez@amd.com 8011308Santhony.gutierrez@amd.comvoid 81SimpleDisk::write(Addr addr, baddr_t block, int count) 82{ 83 panic("unimplemented!\n"); 84 85#if 0 86 uint8_t *data = physmem->dma_addr(addr, count); 87 if (!data) 88 panic("dma out of range! write addr=%#x count=%d\n", addr, count); 89 90 image->write(data, block, count); 91#endif 92} 93 94BEGIN_DECLARE_SIM_OBJECT_PARAMS(SimpleDisk) 95 96 SimObjectParam<System *> system; 97 SimObjectParam<DiskImage *> disk; 98 99END_DECLARE_SIM_OBJECT_PARAMS(SimpleDisk) 100 101BEGIN_INIT_SIM_OBJECT_PARAMS(SimpleDisk) 102 103 INIT_PARAM(system, "System pointer"), 104 INIT_PARAM(disk, "Disk Image") 105 106END_INIT_SIM_OBJECT_PARAMS(SimpleDisk) 107 108CREATE_SIM_OBJECT(SimpleDisk) 109{ 110 return new SimpleDisk(getInstanceName(), system, disk); 111} 112 113REGISTER_SIM_OBJECT("SimpleDisk", SimpleDisk) 114