intdev.hh revision 5827:ac2c268bf4f1
1/* 2 * Copyright (c) 2008 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 * Authors: Gabe Black 29 */ 30 31#ifndef __DEV_X86_INTDEV_HH__ 32#define __DEV_X86_INTDEV_HH__ 33 34#include <assert.h> 35#include <string> 36 37#include "arch/x86/x86_traits.hh" 38#include "mem/mem_object.hh" 39#include "mem/mport.hh" 40#include "sim/sim_object.hh" 41#include "params/X86IntSourcePin.hh" 42#include "params/X86IntSinkPin.hh" 43#include "params/X86IntLine.hh" 44 45namespace X86ISA { 46 47class IntDev 48{ 49 protected: 50 class IntPort : public MessagePort 51 { 52 IntDev * device; 53 Tick latency; 54 Addr intAddr; 55 public: 56 IntPort(const std::string &_name, MemObject * _parent, 57 IntDev *dev, Tick _latency) : 58 MessagePort(_name, _parent), device(dev), latency(_latency) 59 { 60 } 61 62 void getDeviceAddressRanges(AddrRangeList &resp, bool &snoop) 63 { 64 snoop = false; 65 device->getIntAddrRange(resp); 66 } 67 68 Tick recvMessage(PacketPtr pkt) 69 { 70 return device->recvMessage(pkt); 71 } 72 73 void recvStatusChange(Status status) 74 { 75 if (status == RangeChange) { 76 sendStatusChange(Port::RangeChange); 77 } 78 } 79 80 }; 81 82 IntPort * intPort; 83 84 public: 85 IntDev(MemObject * parent, Tick latency = 0) 86 { 87 if (parent != NULL) { 88 intPort = new IntPort(parent->name() + ".int_port", 89 parent, this, latency); 90 } else { 91 intPort = NULL; 92 } 93 } 94 95 virtual ~IntDev() 96 {} 97 98 virtual void 99 signalInterrupt(int line) 100 { 101 panic("signalInterrupt not implemented.\n"); 102 } 103 104 virtual void 105 raiseInterruptPin(int number) 106 { 107 panic("raiseInterruptPin not implemented.\n"); 108 } 109 110 virtual void 111 lowerInterruptPin(int number) 112 { 113 panic("lowerInterruptPin not implemented.\n"); 114 } 115 116 virtual Tick 117 recvMessage(PacketPtr pkt) 118 { 119 panic("recvMessage not implemented.\n"); 120 return 0; 121 } 122 123 virtual void 124 getIntAddrRange(AddrRangeList &range_list) 125 { 126 panic("intAddrRange not implemented.\n"); 127 } 128}; 129 130class IntSinkPin : public SimObject 131{ 132 public: 133 IntDev * device; 134 int number; 135 136 typedef X86IntSinkPinParams Params; 137 138 const Params * 139 params() const 140 { 141 return dynamic_cast<const Params *>(_params); 142 } 143 144 IntSinkPin(Params *p) : SimObject(p), 145 device(dynamic_cast<IntDev *>(p->device)), number(p->number) 146 { 147 assert(device); 148 } 149}; 150 151class IntSourcePin : public SimObject 152{ 153 protected: 154 std::vector<IntSinkPin *> sinks; 155 156 public: 157 typedef X86IntSourcePinParams Params; 158 159 const Params * 160 params() const 161 { 162 return dynamic_cast<const Params *>(_params); 163 } 164 165 void 166 addSink(IntSinkPin *sink) 167 { 168 sinks.push_back(sink); 169 } 170 171 void 172 raise() 173 { 174 for (int i = 0; i < sinks.size(); i++) { 175 const IntSinkPin &pin = *sinks[i]; 176 pin.device->raiseInterruptPin(pin.number); 177 } 178 } 179 180 void 181 lower() 182 { 183 for (int i = 0; i < sinks.size(); i++) { 184 const IntSinkPin &pin = *sinks[i]; 185 pin.device->lowerInterruptPin(pin.number); 186 } 187 } 188 189 IntSourcePin(Params *p) : SimObject(p) 190 {} 191}; 192 193class IntLine : public SimObject 194{ 195 protected: 196 IntSourcePin *source; 197 IntSinkPin *sink; 198 199 public: 200 typedef X86IntLineParams Params; 201 202 const Params * 203 params() const 204 { 205 return dynamic_cast<const Params *>(_params); 206 } 207 208 IntLine(Params *p) : SimObject(p), source(p->source), sink(p->sink) 209 { 210 source->addSink(sink); 211 } 212}; 213 214}; // namespace X86ISA 215 216#endif //__DEV_X86_INTDEV_HH__ 217