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_I82094AA_HH__ 32#define __DEV_X86_I82094AA_HH__ 33 34#include <map> 35 36#include "base/bitunion.hh" 37#include "base/range_map.hh" 38#include "dev/x86/intdev.hh" 39#include "dev/io_device.hh" 40#include "params/I82094AA.hh" 41 42namespace X86ISA 43{ 44 45class I8259; 46class Interrupts; 47 48class I82094AA : public PioDevice, public IntDev 49{ 50 public: 51 BitUnion64(RedirTableEntry) 52 Bitfield<63, 32> topDW; 53 Bitfield<55, 32> topReserved; 54 Bitfield<31, 0> bottomDW; 55 Bitfield<31, 17> bottomReserved; 56 Bitfield<63, 56> dest; 57 Bitfield<16> mask; 58 Bitfield<15> trigger; 59 Bitfield<14> remoteIRR; 60 Bitfield<13> polarity; 61 Bitfield<12> deliveryStatus; 62 Bitfield<11> destMode; 63 Bitfield<10, 8> deliveryMode; 64 Bitfield<7, 0> vector; 65 EndBitUnion(RedirTableEntry) 66 67 protected: 68 Tick latency; 69 Addr pioAddr; 70 71 I8259 * extIntPic; 72
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73 std::map<int, Interrupts *> localApics;
74
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73 uint8_t regSel; 74 uint8_t initialApicId; 75 uint8_t id; 76 uint8_t arbId; 77 78 uint64_t lowestPriorityOffset; 79 80 static const uint8_t TableSize = 24; 81 // This implementation is based on version 0x11, but 0x14 avoids having 82 // to deal with the arbitration and APIC bus guck. 83 static const uint8_t APICVersion = 0x14; 84 85 RedirTableEntry redirTable[TableSize]; 86 bool pinStates[TableSize]; 87 88 public: 89 typedef I82094AAParams Params; 90 91 const Params * 92 params() const 93 { 94 return dynamic_cast<const Params *>(_params); 95 } 96 97 I82094AA(Params *p); 98 99 void init(); 100 101 Tick read(PacketPtr pkt); 102 Tick write(PacketPtr pkt); 103
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106 AddrRangeList getAddrRanges()
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104 void addressRanges(AddrRangeList &range_list) |
105 {
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108 AddrRangeList ranges;
109 ranges.push_back(RangeEx(pioAddr, pioAddr + 4));
110 ranges.push_back(RangeEx(pioAddr + 16, pioAddr + 20));
111 return ranges;
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106 range_list.clear(); 107 range_list.push_back(RangeEx(pioAddr, pioAddr + 4)); 108 range_list.push_back(RangeEx(pioAddr + 16, pioAddr + 20)); |
109 } 110
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114 AddrRangeList getIntAddrRange()
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111 void getIntAddrRange(AddrRangeList &range_list) |
112 {
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116 AddrRangeList ranges;
117 ranges.push_back(RangeEx(x86InterruptAddress(initialApicId, 0),
118 x86InterruptAddress(initialApicId, 0) +
119 PhysAddrAPICRangeSize));
120 return ranges;
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113 range_list.clear(); 114 range_list.push_back(RangeEx(x86InterruptAddress(initialApicId, 0), 115 x86InterruptAddress(initialApicId, 0) + 116 PhysAddrAPICRangeSize)); |
117 } 118 119 void writeReg(uint8_t offset, uint32_t value); 120 uint32_t readReg(uint8_t offset); 121 122 Port *getPort(const std::string &if_name, int idx = -1) 123 { 124 if (if_name == "int_port") 125 return intPort; 126 return PioDevice::getPort(if_name, idx); 127 } 128 129 void signalInterrupt(int line); 130 void raiseInterruptPin(int number); 131 void lowerInterruptPin(int number);
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136 void registerLocalApic(int id, Interrupts *localApic);
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132 133 virtual void serialize(std::ostream &os); 134 virtual void unserialize(Checkpoint *cp, const std::string §ion); 135}; 136 137} // namespace X86ISA 138 139#endif //__DEV_X86_SOUTH_BRIDGE_I8254_HH__
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