intdev.hh revision 9557:8666e81607a6
1/* 2 * Copyright (c) 2012 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Copyright (c) 2008 The Regents of The University of Michigan 15 * All rights reserved. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions are 19 * met: redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer; 21 * redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution; 24 * neither the name of the copyright holders nor the names of its 25 * contributors may be used to endorse or promote products derived from 26 * this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 39 * 40 * Authors: Gabe Black 41 */ 42 43#ifndef __DEV_X86_INTDEV_HH__ 44#define __DEV_X86_INTDEV_HH__ 45 46#include <cassert> 47#include <list> 48#include <string> 49 50#include "arch/x86/intmessage.hh" 51#include "arch/x86/x86_traits.hh" 52#include "mem/mem_object.hh" 53#include "mem/mport.hh" 54#include "params/X86IntLine.hh" 55#include "params/X86IntSinkPin.hh" 56#include "params/X86IntSourcePin.hh" 57#include "sim/sim_object.hh" 58 59namespace X86ISA { 60 61typedef std::list<int> ApicList; 62 63class IntDev 64{ 65 protected: 66 class IntSlavePort : public MessageSlavePort 67 { 68 IntDev * device; 69 70 public: 71 IntSlavePort(const std::string& _name, MemObject* _parent, 72 IntDev* dev) : 73 MessageSlavePort(_name, _parent), device(dev) 74 { 75 } 76 77 AddrRangeList getAddrRanges() const 78 { 79 return device->getIntAddrRange(); 80 } 81 82 Tick recvMessage(PacketPtr pkt) 83 { 84 // @todo someone should pay for this 85 pkt->busFirstWordDelay = pkt->busLastWordDelay = 0; 86 return device->recvMessage(pkt); 87 } 88 }; 89 90 class IntMasterPort : public MessageMasterPort 91 { 92 IntDev* device; 93 Tick latency; 94 public: 95 IntMasterPort(const std::string& _name, MemObject* _parent, 96 IntDev* dev, Tick _latency) : 97 MessageMasterPort(_name, _parent), device(dev), latency(_latency) 98 { 99 } 100 101 Tick recvResponse(PacketPtr pkt) 102 { 103 return device->recvResponse(pkt); 104 } 105 106 // This is x86 focused, so if this class becomes generic, this would 107 // need to be moved into a subclass. 108 void sendMessage(ApicList apics, 109 TriggerIntMessage message, bool timing); 110 }; 111 112 IntMasterPort intMasterPort; 113 114 public: 115 IntDev(MemObject * parent, Tick latency = 0) : 116 intMasterPort(parent->name() + ".int_master", parent, this, latency) 117 { 118 } 119 120 virtual ~IntDev() 121 {} 122 123 virtual void init(); 124 125 virtual void 126 signalInterrupt(int line) 127 { 128 panic("signalInterrupt not implemented.\n"); 129 } 130 131 virtual void 132 raiseInterruptPin(int number) 133 { 134 panic("raiseInterruptPin not implemented.\n"); 135 } 136 137 virtual void 138 lowerInterruptPin(int number) 139 { 140 panic("lowerInterruptPin not implemented.\n"); 141 } 142 143 virtual Tick 144 recvMessage(PacketPtr pkt) 145 { 146 panic("recvMessage not implemented.\n"); 147 return 0; 148 } 149 150 virtual Tick 151 recvResponse(PacketPtr pkt) 152 { 153 return 0; 154 } 155 156 virtual AddrRangeList 157 getIntAddrRange() const 158 { 159 panic("intAddrRange not implemented.\n"); 160 } 161}; 162 163class IntSinkPin : public SimObject 164{ 165 public: 166 IntDev * device; 167 int number; 168 169 typedef X86IntSinkPinParams Params; 170 171 const Params * 172 params() const 173 { 174 return dynamic_cast<const Params *>(_params); 175 } 176 177 IntSinkPin(Params *p) : SimObject(p), 178 device(dynamic_cast<IntDev *>(p->device)), number(p->number) 179 { 180 assert(device); 181 } 182}; 183 184class IntSourcePin : public SimObject 185{ 186 protected: 187 std::vector<IntSinkPin *> sinks; 188 189 public: 190 typedef X86IntSourcePinParams Params; 191 192 const Params * 193 params() const 194 { 195 return dynamic_cast<const Params *>(_params); 196 } 197 198 void 199 addSink(IntSinkPin *sink) 200 { 201 sinks.push_back(sink); 202 } 203 204 void 205 raise() 206 { 207 for (int i = 0; i < sinks.size(); i++) { 208 const IntSinkPin &pin = *sinks[i]; 209 pin.device->raiseInterruptPin(pin.number); 210 } 211 } 212 213 void 214 lower() 215 { 216 for (int i = 0; i < sinks.size(); i++) { 217 const IntSinkPin &pin = *sinks[i]; 218 pin.device->lowerInterruptPin(pin.number); 219 } 220 } 221 222 IntSourcePin(Params *p) : SimObject(p) 223 {} 224}; 225 226class IntLine : public SimObject 227{ 228 protected: 229 IntSourcePin *source; 230 IntSinkPin *sink; 231 232 public: 233 typedef X86IntLineParams Params; 234 235 const Params * 236 params() const 237 { 238 return dynamic_cast<const Params *>(_params); 239 } 240 241 IntLine(Params *p) : SimObject(p), source(p->source), sink(p->sink) 242 { 243 source->addSink(sink); 244 } 245}; 246 247} // namespace X86ISA 248 249#endif //__DEV_X86_INTDEV_HH__ 250