/* * Copyright (c) 2004 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 * BadDevice implemenation */ #include #include #include #include "base/trace.hh" #include "cpu/exec_context.hh" #include "dev/baddev.hh" #include "dev/platform.hh" #include "mem/bus/bus.hh" #include "mem/bus/pio_interface.hh" #include "mem/bus/pio_interface_impl.hh" #include "mem/functional_mem/memory_control.hh" #include "sim/builder.hh" #include "sim/system.hh" using namespace std; BadDevice::BadDevice(const string &name, Addr a, MemoryController *mmu, HierParams *hier, Bus *bus, const string &devicename) : PioDevice(name, NULL), addr(a), devname(devicename) { mmu->add_child(this, RangeSize(addr, size)); if (bus) { pioInterface = newPioInterface(name, hier, bus, this, &BadDevice::cacheAccess); pioInterface->addAddrRange(RangeSize(addr, size)); } } Fault BadDevice::read(MemReqPtr &req, uint8_t *data) { panic("Device %s not imlpmented\n", devname); return No_Fault; } Fault BadDevice::write(MemReqPtr &req, const uint8_t *data) { panic("Device %s not imlpmented\n", devname); return No_Fault; } Tick BadDevice::cacheAccess(MemReqPtr &req) { return curTick; } BEGIN_DECLARE_SIM_OBJECT_PARAMS(BadDevice) SimObjectParam platform; SimObjectParam mmu; Param addr; SimObjectParam hier; SimObjectParam io_bus; Param pio_latency; Param devicename; END_DECLARE_SIM_OBJECT_PARAMS(BadDevice) BEGIN_INIT_SIM_OBJECT_PARAMS(BadDevice) INIT_PARAM(platform, "Platform"), INIT_PARAM(mmu, "Memory Controller"), INIT_PARAM(addr, "Device Address"), INIT_PARAM_DFLT(hier, "Hierarchy global variables", &defaultHierParams), INIT_PARAM_DFLT(io_bus, "The IO Bus to attach to", NULL), INIT_PARAM_DFLT(pio_latency, "Programmed IO latency", 1000), INIT_PARAM(devicename, "Name of device to error on") END_INIT_SIM_OBJECT_PARAMS(BadDevice) CREATE_SIM_OBJECT(BadDevice) { return new BadDevice(getInstanceName(), addr, mmu, hier, io_bus, devicename); } REGISTER_SIM_OBJECT("BadDevice", BadDevice)