baddev.cc revision 2107
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; 49using namespace TheISA; 50 51BadDevice::BadDevice(const string &name, Addr a, MemoryController *mmu, 52 HierParams *hier, Bus *pio_bus, const string &devicename) 53 : PioDevice(name, NULL), addr(a), devname(devicename) 54{ 55 mmu->add_child(this, RangeSize(addr, size)); 56 57 if (pio_bus) { 58 pioInterface = newPioInterface(name, hier, pio_bus, this, 59 &BadDevice::cacheAccess); 60 pioInterface->addAddrRange(RangeSize(addr, size)); 61 } 62 63} 64 65Fault * 66BadDevice::read(MemReqPtr &req, uint8_t *data) 67{ 68 69 panic("Device %s not imlpmented\n", devname); 70 return NoFault; 71} 72 73Fault * 74BadDevice::write(MemReqPtr &req, const uint8_t *data) 75{ 76 panic("Device %s not imlpmented\n", devname); 77 return NoFault; 78} 79 80Tick 81BadDevice::cacheAccess(MemReqPtr &req) 82{ 83 return curTick; 84} 85 86BEGIN_DECLARE_SIM_OBJECT_PARAMS(BadDevice) 87 88 SimObjectParam<Platform *> platform; 89 SimObjectParam<MemoryController *> mmu; 90 Param<Addr> addr; 91 SimObjectParam<HierParams *> hier; 92 SimObjectParam<Bus*> pio_bus; 93 Param<Tick> pio_latency; 94 Param<string> devicename; 95 96END_DECLARE_SIM_OBJECT_PARAMS(BadDevice) 97 98BEGIN_INIT_SIM_OBJECT_PARAMS(BadDevice) 99 100 INIT_PARAM(platform, "Platform"), 101 INIT_PARAM(mmu, "Memory Controller"), 102 INIT_PARAM(addr, "Device Address"), 103 INIT_PARAM_DFLT(hier, "Hierarchy global variables", &defaultHierParams), 104 INIT_PARAM_DFLT(pio_bus, "The IO Bus to attach to", NULL), 105 INIT_PARAM_DFLT(pio_latency, "Programmed IO latency", 1000), 106 INIT_PARAM(devicename, "Name of device to error on") 107 108END_INIT_SIM_OBJECT_PARAMS(BadDevice) 109 110CREATE_SIM_OBJECT(BadDevice) 111{ 112 return new BadDevice(getInstanceName(), addr, mmu, hier, pio_bus, 113 devicename); 114} 115 116REGISTER_SIM_OBJECT("BadDevice", BadDevice) 117