Ali Saidi | 7933aad | 2007-01-09 22:16:49 -0500 | [diff] [blame] | 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; |
| 9 | * redistributions in binary form must reproduce the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer in the |
| 11 | * documentation and/or other materials provided with the distribution; |
| 12 | * neither the name of the copyright holders nor the names of its |
| 13 | * contributors may be used to endorse or promote products derived from |
| 14 | * this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | * |
| 28 | * Authors: Ali Saidi |
| 29 | */ |
| 30 | |
| 31 | /** @file |
| 32 | * This device acts as a disk similar to the memory mapped disk device |
| 33 | * in legion. Any access is translated to an offset in the disk image. |
| 34 | */ |
| 35 | |
| 36 | #ifndef __DEV_SPARC_MM_DISK_HH__ |
| 37 | #define __DEV_SPARC_MM_DISK_HH__ |
| 38 | |
Nathan Binkert | 39a0556 | 2011-04-15 10:44:06 -0700 | [diff] [blame] | 39 | #include "dev/io_device.hh" |
Andreas Sandberg | 8ec5fc6 | 2015-12-10 10:35:23 +0000 | [diff] [blame] | 40 | #include "dev/storage/disk_image.hh" |
Nathan Binkert | abc76f2 | 2007-07-23 21:51:38 -0700 | [diff] [blame] | 41 | #include "params/MmDisk.hh" |
Ali Saidi | 7933aad | 2007-01-09 22:16:49 -0500 | [diff] [blame] | 42 | |
| 43 | class MmDisk : public BasicPioDevice |
| 44 | { |
| 45 | private: |
| 46 | DiskImage *image; |
| 47 | off_t curSector; |
| 48 | bool dirty; |
Ali Saidi | ebb6972 | 2007-02-06 15:52:33 -0500 | [diff] [blame] | 49 | uint8_t diskData[SectorSize]; |
Ali Saidi | 7933aad | 2007-01-09 22:16:49 -0500 | [diff] [blame] | 50 | |
| 51 | public: |
Nathan Binkert | abc76f2 | 2007-07-23 21:51:38 -0700 | [diff] [blame] | 52 | typedef MmDiskParams Params; |
| 53 | MmDisk(const Params *p); |
Ali Saidi | 7933aad | 2007-01-09 22:16:49 -0500 | [diff] [blame] | 54 | |
Nathan Binkert | abc76f2 | 2007-07-23 21:51:38 -0700 | [diff] [blame] | 55 | const Params * |
| 56 | params() const |
| 57 | { |
| 58 | return dynamic_cast<const Params *>(_params); |
| 59 | } |
Ali Saidi | 7933aad | 2007-01-09 22:16:49 -0500 | [diff] [blame] | 60 | |
Andreas Hansson | 4619f0e | 2016-02-23 03:27:20 -0500 | [diff] [blame] | 61 | Tick read(PacketPtr pkt) override; |
| 62 | Tick write(PacketPtr pkt) override; |
Ali Saidi | ebb6972 | 2007-02-06 15:52:33 -0500 | [diff] [blame] | 63 | |
Andreas Hansson | 22c0419 | 2015-10-12 04:07:59 -0400 | [diff] [blame] | 64 | void serialize(CheckpointOut &cp) const override; |
Ali Saidi | 7933aad | 2007-01-09 22:16:49 -0500 | [diff] [blame] | 65 | }; |
| 66 | |
| 67 | #endif //__DEV_SPARC_MM_DISK_HH__ |
| 68 | |