baddev.cc revision 1762
1/* 2 * Copyright (c) 2004-2005 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 "dev/platform.hh" 41#include "mem/bus/bus.hh" 42#include "mem/bus/pio_interface.hh" 43#include "mem/bus/pio_interface_impl.hh" 44#include "mem/functional/memory_control.hh" 45#include "sim/builder.hh" 46#include "sim/system.hh" 47 48using namespace std; 49 50BadDevice::BadDevice(const string &name, Addr a, MemoryController *mmu, 51 HierParams *hier, Bus *bus, const string &devicename) 52 : PioDevice(name, NULL), addr(a), devname(devicename) 53{ 54 mmu->add_child(this, RangeSize(addr, size)); 55 56 if (bus) { 57 pioInterface = newPioInterface(name, hier, bus, this, 58 &BadDevice::cacheAccess); 59 pioInterface->addAddrRange(RangeSize(addr, size)); 60 } 61 62} 63 64Fault 65BadDevice::read(MemReqPtr &req, uint8_t *data) 66{ 67 68 panic("Device %s not imlpmented\n", devname); 69 return No_Fault; 70} 71 72Fault 73BadDevice::write(MemReqPtr &req, const uint8_t *data) 74{ 75 panic("Device %s not imlpmented\n", devname); 76 return No_Fault; 77} 78 79Tick 80BadDevice::cacheAccess(MemReqPtr &req) 81{ 82 return curTick; 83} 84 85BEGIN_DECLARE_SIM_OBJECT_PARAMS(BadDevice) 86 87 SimObjectParam<Platform *> platform; 88 SimObjectParam<MemoryController *> mmu; 89 Param<Addr> addr; 90 SimObjectParam<HierParams *> hier; 91 SimObjectParam<Bus*> io_bus; 92 Param<Tick> pio_latency; 93 Param<string> devicename; 94 95END_DECLARE_SIM_OBJECT_PARAMS(BadDevice) 96 97BEGIN_INIT_SIM_OBJECT_PARAMS(BadDevice) 98 99 INIT_PARAM(platform, "Platform"), 100 INIT_PARAM(mmu, "Memory Controller"), 101 INIT_PARAM(addr, "Device Address"), 102 INIT_PARAM_DFLT(hier, "Hierarchy global variables", &defaultHierParams), 103 INIT_PARAM_DFLT(io_bus, "The IO Bus to attach to", NULL), 104 INIT_PARAM_DFLT(pio_latency, "Programmed IO latency", 1000), 105 INIT_PARAM(devicename, "Name of device to error on") 106 107END_INIT_SIM_OBJECT_PARAMS(BadDevice) 108 109CREATE_SIM_OBJECT(BadDevice) 110{ 111 return new BadDevice(getInstanceName(), addr, mmu, hier, io_bus, 112 devicename); 113} 114 115REGISTER_SIM_OBJECT("BadDevice", BadDevice) 116