1/*
2 * Copyright (c) 2006 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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35
36#include <cstring>
37
38#include "base/trace.hh"
39#include "dev/sparc/mm_disk.hh"
40#include "dev/platform.hh"
41#include "mem/port.hh"
42#include "mem/packet_access.hh"
43#include "sim/byteswap.hh"
44#include "sim/system.hh"
45
46MmDisk::MmDisk(const Params *p)
47 : BasicPioDevice(p), image(p->image), curSector((off_t)-1), dirty(false)
48{
49 std::memset(&diskData, 0, SectorSize);
50 pioSize = image->size() * SectorSize;
51}
52
53Tick
54MmDisk::read(PacketPtr pkt)

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167 // serialization
168 int bytes_read;
169 if (dirty) {
170 bytes_read = image->write(diskData, curSector);
171 assert(bytes_read == SectorSize);
172 }
173}
174
175MmDisk *
176MmDiskParams::create()
177{
178 return new MmDisk(this);
179}