baddev.cc revision 909
1/* 2 * Copyright (c) 2004 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 29/* @file 30 * BadDevice implemenation 31 */ 32 33#include <deque> 34#include <string> 35#include <vector> 36 37#include "base/trace.hh" 38#include "cpu/exec_context.hh" 39#include "dev/baddev.hh" 40#include "mem/bus/bus.hh" 41#include "mem/bus/pio_interface.hh" 42#include "mem/bus/pio_interface_impl.hh" 43#include "mem/functional_mem/memory_control.hh" 44#include "sim/builder.hh" 45#include "sim/system.hh" 46 47using namespace std; 48 49BadDevice::BadDevice(const string &name, Addr a, MemoryController *mmu, 50 HierParams *hier, Bus *bus, const string &devicename) 51 : PioDevice(name), addr(a), devname(devicename) 52{ 53 mmu->add_child(this, Range<Addr>(addr, addr + size)); 54 55 if (bus) { 56 pioInterface = newPioInterface(name, hier, bus, this, 57 &BadDevice::cacheAccess); 58 pioInterface->addAddrRange(addr, addr + size - 1); 59 } 60 61} 62 63Fault 64BadDevice::read(MemReqPtr &req, uint8_t *data) 65{ 66 67 panic("Device %s not imlpmented\n", devname); 68 return No_Fault; 69} 70 71Fault 72BadDevice::write(MemReqPtr &req, const uint8_t *data) 73{ 74 panic("Device %s not imlpmented\n", devname); 75 return No_Fault; 76} 77 78Tick 79BadDevice::cacheAccess(MemReqPtr &req) 80{ 81 return curTick + 1000; 82} 83 84BEGIN_DECLARE_SIM_OBJECT_PARAMS(BadDevice) 85 86 SimObjectParam<MemoryController *> mmu; 87 Param<Addr> addr; 88 SimObjectParam<HierParams *> hier; 89 SimObjectParam<Bus*> io_bus; 90 Param<string> devicename; 91 92END_DECLARE_SIM_OBJECT_PARAMS(BadDevice) 93 94BEGIN_INIT_SIM_OBJECT_PARAMS(BadDevice) 95 96 INIT_PARAM(mmu, "Memory Controller"), 97 INIT_PARAM(addr, "Device Address"), 98 INIT_PARAM_DFLT(hier, "Hierarchy global variables", &defaultHierParams), 99 INIT_PARAM_DFLT(io_bus, "The IO Bus to attach to", NULL), 100 INIT_PARAM(devicename, "Name of device to error on") 101 102END_INIT_SIM_OBJECT_PARAMS(BadDevice) 103 104CREATE_SIM_OBJECT(BadDevice) 105{ 106 return new BadDevice(getInstanceName(), addr, mmu, hier, io_bus, devicename); 107} 108 109REGISTER_SIM_OBJECT("BadDevice", BadDevice) 110