-# Copyright (c) 2006 The Regents of The University of Michigan
+# Copyright (c) 2006-2007 The Regents of The University of Michigan
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
def childImage(self, ci):
self.image.child.image_file = ci
+class CowMmDisk(MmDisk):
+ image = CowDiskImage(child=RawDiskImage(read_only=True),
+ read_only=False)
+
+ def childImage(self, ci):
+ self.image.child.image_file = ci
+
+
class BaseTsunami(Tsunami):
ethernet = NSGigE(configdata=NSGigEPciData(),
pci_bus=0, pci_dev=1, pci_func=0)
self.hypervisor_desc.port = self.membus.port
self.partition_desc.port = self.membus.port
self.intrctrl = IntrControl()
- self.mem_mode = mem_mode
-
+ self.disk0 = CowMmDisk()
+ self.disk0.childImage(disk('disk.s10hw2'))
+ self.disk0.pio = self.iobus.port
self.reset_bin = binary('reset.bin')
self.hypervisor_bin = binary('q.bin')
self.openboot_bin = binary('openboot.bin')
--- /dev/null
+/*
+ * Copyright (c) 2006 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.
+ *
+ * Authors: Ali Saidi
+ */
+
+/** @file
+ * This device acts as a disk similar to the memory mapped disk device
+ * in legion. Any access is translated to an offset in the disk image.
+ */
+
+#include "base/trace.hh"
+#include "dev/sparc/mm_disk.hh"
+#include "dev/platform.hh"
+#include "mem/port.hh"
+#include "mem/packet_access.hh"
+#include "sim/builder.hh"
+#include "sim/byteswap.hh"
+#include "sim/system.hh"
+
+MmDisk::MmDisk(Params *p)
+ : BasicPioDevice(p), image(p->image), curSector((uint64_t)-1), dirty(false)
+{
+ memset(&bytes, 0, SectorSize);
+ pioSize = image->size() * SectorSize;
+}
+
+Tick
+MmDisk::read(PacketPtr pkt)
+{
+ Addr accessAddr;
+ off_t sector;
+ off_t bytes_read;
+ uint16_t *d16;
+ uint32_t *d32;
+ uint64_t *d64;
+
+ assert(pkt->result == Packet::Unknown);
+ assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
+ accessAddr = pkt->getAddr() - pioAddr;
+
+ sector = accessAddr / SectorSize;
+
+ if (sector != curSector) {
+ if (dirty)
+ bytes_read = image->write(bytes, curSector);
+ bytes_read = image->read(bytes, sector);
+ curSector = sector;
+ }
+ switch (pkt->getSize()) {
+ case sizeof(uint8_t):
+ pkt->set(bytes[accessAddr % SectorSize]);
+ break;
+ case sizeof(uint16_t):
+ d16 = (uint16_t*)bytes + (accessAddr % SectorSize)/2;
+ pkt->set(htobe(*d16));
+ break;
+ case sizeof(uint32_t):
+ d32 = (uint32_t*)bytes + (accessAddr % SectorSize)/4;
+ pkt->set(htobe(*d32));
+ break;
+ case sizeof(uint64_t):
+ d64 = (uint64_t*)bytes + (accessAddr % SectorSize)/8;
+ pkt->set(htobe(*d64));
+ break;
+ default:
+ panic("Invalid access size\n");
+ }
+
+ pkt->result = Packet::Success;
+ return pioDelay;
+}
+
+Tick
+MmDisk::write(PacketPtr pkt)
+{
+ panic("need to implement\n");
+}
+
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(MmDisk)
+ Param<Addr> pio_addr;
+ Param<Tick> pio_latency;
+ Param<Addr> pio_size;
+ SimObjectParam<Platform *> platform;
+ SimObjectParam<System *> system;
+ SimObjectParam<DiskImage *> image;
+END_DECLARE_SIM_OBJECT_PARAMS(MmDisk)
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(MmDisk)
+
+ INIT_PARAM(pio_addr, "Device Address"),
+ INIT_PARAM(pio_latency, "Programmed IO latency"),
+ INIT_PARAM(pio_size, "Size of address range"),
+ INIT_PARAM(platform, "platform"),
+ INIT_PARAM(system, "system object"),
+ INIT_PARAM(image, "disk image")
+
+END_INIT_SIM_OBJECT_PARAMS(MmDisk)
+
+CREATE_SIM_OBJECT(MmDisk)
+{
+ MmDisk::Params *p = new MmDisk::Params;
+ p->name = getInstanceName();
+ p->pio_addr = pio_addr;
+ p->pio_delay = pio_latency;
+ p->platform = platform;
+ p->system = system;
+ p->image = image;
+ return new MmDisk(p);
+}
+
+REGISTER_SIM_OBJECT("MmDisk", MmDisk)
--- /dev/null
+/*
+ * Copyright (c) 2006 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.
+ *
+ * Authors: Ali Saidi
+ */
+
+/** @file
+ * This device acts as a disk similar to the memory mapped disk device
+ * in legion. Any access is translated to an offset in the disk image.
+ */
+
+#ifndef __DEV_SPARC_MM_DISK_HH__
+#define __DEV_SPARC_MM_DISK_HH__
+
+#include "base/range.hh"
+#include "dev/io_device.hh"
+#include "dev/disk_image.hh"
+
+class MmDisk : public BasicPioDevice
+{
+ private:
+ DiskImage *image;
+ off_t curSector;
+ bool dirty;
+ union {
+ uint8_t bytes[SectorSize];
+ uint32_t words[SectorSize/4];
+ };
+
+ public:
+ struct Params : public BasicPioDevice::Params
+ {
+ DiskImage *image;
+ };
+ protected:
+ const Params *params() const { return (const Params*)_params; }
+
+ public:
+ MmDisk(Params *p);
+
+ virtual Tick read(PacketPtr pkt);
+ virtual Tick write(PacketPtr pkt);
+};
+
+#endif //__DEV_SPARC_MM_DISK_HH__
+
projects / gem5.git / commitdiff