mm_disk.hh revision 8229 
15584Snate@binkert.org/*
25584Snate@binkert.org * Copyright (c) 2006 The Regents of The University of Michigan
35584Snate@binkert.org * All rights reserved.
45584Snate@binkert.org *
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65584Snate@binkert.org * modification, are permitted provided that the following conditions are
75584Snate@binkert.org * met: redistributions of source code must retain the above copyright
85584Snate@binkert.org * notice, this list of conditions and the following disclaimer;
95584Snate@binkert.org * redistributions in binary form must reproduce the above copyright
105584Snate@binkert.org * notice, this list of conditions and the following disclaimer in the
115584Snate@binkert.org * documentation and/or other materials provided with the distribution;
125584Snate@binkert.org * neither the name of the copyright holders nor the names of its
135584Snate@binkert.org * contributors may be used to endorse or promote products derived from
145584Snate@binkert.org * this software without specific prior written permission.
155584Snate@binkert.org *
165584Snate@binkert.org * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
175584Snate@binkert.org * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
185584Snate@binkert.org * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
195584Snate@binkert.org * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
205584Snate@binkert.org * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
215584Snate@binkert.org * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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265584Snate@binkert.org * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
275584Snate@binkert.org *
285584Snate@binkert.org * Authors: Ali Saidi
295584Snate@binkert.org */
305584Snate@binkert.org
315584Snate@binkert.org/** @file
325584Snate@binkert.org * This device acts as a disk similar to the memory mapped disk device
337768SAli.Saidi@ARM.com * in legion. Any access is translated to an offset in the disk image.
347768SAli.Saidi@ARM.com */
357768SAli.Saidi@ARM.com
367841Sgblack@eecs.umich.edu#ifndef __DEV_SPARC_MM_DISK_HH__
377841Sgblack@eecs.umich.edu#define __DEV_SPARC_MM_DISK_HH__
385584Snate@binkert.org
395584Snate@binkert.org#include "base/range.hh"
405584Snate@binkert.org#include "dev/disk_image.hh"
415584Snate@binkert.org#include "dev/io_device.hh"
425584Snate@binkert.org#include "params/MmDisk.hh"
435584Snate@binkert.org
445584Snate@binkert.orgclass MmDisk : public BasicPioDevice
455584Snate@binkert.org{
465584Snate@binkert.org  private:
475584Snate@binkert.org    DiskImage *image;
485584Snate@binkert.org    off_t curSector;
497824Sgblack@eecs.umich.edu    bool dirty;
505584Snate@binkert.org    uint8_t diskData[SectorSize];
518951Sgblack@eecs.umich.edu
528235Snate@binkert.org  public:
538235Snate@binkert.org    typedef MmDiskParams Params;
548235Snate@binkert.org    MmDisk(const Params *p);
558235Snate@binkert.org
568235Snate@binkert.org    const Params *
575584Snate@binkert.org    params() const
585584Snate@binkert.org    {
595584Snate@binkert.org        return dynamic_cast<const Params *>(_params);
60    }
61
62    virtual Tick read(PacketPtr pkt);
63    virtual Tick write(PacketPtr pkt);
64
65    virtual void serialize(std::ostream &os);
66};
67
68#endif //__DEV_SPARC_MM_DISK_HH__
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