gem5/dev/simple_disk.cc
Ali Saidi 6240f8c4bc fixes for newmem
ALPHA_FS finally compiles again

SConscript:
    Use a couple more FS sources, still don't compile that much
arch/alpha/faults.hh:
    the unimp fault should probably exist in nonfs too.
dev/alpha_console.cc:
dev/alpha_console.hh:
dev/simconsole.cc:
dev/simple_disk.cc:
dev/simple_disk.hh:
dev/uart.cc:
dev/uart.hh:
dev/uart8250.cc:
dev/uart8250.hh:
sim/process.cc:
sim/system.cc:
    fixes for newmem
dev/io_device.hh:
    a system pointer is probably useful for every device to have
mem/bus.hh:
mem/physical.cc:
    new address ranges function
python/m5/objects/SimpleDisk.py:
    simple disk now has a system pointer rather than physmem directly

--HG--
extra : convert_revision : d8c0a5c6510a6210aec5e8adfb0a4a06ec0dcebf
2006-04-06 14:57:51 -04:00

111 lines
3.3 KiB
C++

/*
* Copyright (c) 2001-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* @file
* Simple disk interface for the system console
*/
#include <sys/types.h>
#include <sys/uio.h>
#include <fcntl.h>
#include <unistd.h>
#include <cstring>
#include <string>
#include "base/misc.hh"
#include "base/trace.hh"
#include "dev/disk_image.hh"
#include "dev/simple_disk.hh"
#include "mem/port.hh"
#include "sim/builder.hh"
#include "sim/system.hh"
using namespace std;
SimpleDisk::SimpleDisk(const string &name, System *sys, DiskImage *img)
: SimObject(name), system(sys), image(img)
{}
SimpleDisk::~SimpleDisk()
{}
void
SimpleDisk::read(Addr addr, baddr_t block, int count) const
{
uint8_t *data = new uint8_t[SectorSize * count];
if (count & (SectorSize - 1))
panic("Not reading a multiple of a sector (count = %d)", count);
for (int i = 0, j = 0; i < count; i += SectorSize, j++)
image->read(data + i, block + j);
system->functionalPort.writeBlob(addr, data, count);
DPRINTF(SimpleDisk, "read block=%#x len=%d\n", (uint64_t)block, count);
DDUMP(SimpleDiskData, data, count);
delete data;
}
void
SimpleDisk::write(Addr addr, baddr_t block, int count)
{
panic("unimplemented!\n");
#if 0
uint8_t *data = physmem->dma_addr(addr, count);
if (!data)
panic("dma out of range! write addr=%#x count=%d\n", addr, count);
image->write(data, block, count);
#endif
}
BEGIN_DECLARE_SIM_OBJECT_PARAMS(SimpleDisk)
SimObjectParam<System *> system;
SimObjectParam<DiskImage *> disk;
END_DECLARE_SIM_OBJECT_PARAMS(SimpleDisk)
BEGIN_INIT_SIM_OBJECT_PARAMS(SimpleDisk)
INIT_PARAM(system, "System pointer"),
INIT_PARAM(disk, "Disk Image")
END_INIT_SIM_OBJECT_PARAMS(SimpleDisk)
CREATE_SIM_OBJECT(SimpleDisk)
{
return new SimpleDisk(getInstanceName(), system, disk);
}
REGISTER_SIM_OBJECT("SimpleDisk", SimpleDisk)