packet.cc (3260:d9ef6d4cbe2a) | packet.cc (3262:5f96609a30ef) |
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1/* 2 * Copyright (c) 2006 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; --- 20 unchanged lines hidden (view full) --- 29 * Steve Reinhardt 30 */ 31 32/** 33 * @file 34 * Definition of the Packet Class, a packet is a transaction occuring 35 * between a single level of the memory heirarchy (ie L1->L2). 36 */ | 1/* 2 * Copyright (c) 2006 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; --- 20 unchanged lines hidden (view full) --- 29 * Steve Reinhardt 30 */ 31 32/** 33 * @file 34 * Definition of the Packet Class, a packet is a transaction occuring 35 * between a single level of the memory heirarchy (ie L1->L2). 36 */ |
37 38#include <iostream> | |
39#include "base/misc.hh" 40#include "mem/packet.hh" | 37#include "base/misc.hh" 38#include "mem/packet.hh" |
41#include "base/trace.hh" | |
42 43static const std::string ReadReqString("ReadReq"); 44static const std::string WriteReqString("WriteReq"); | 39 40static const std::string ReadReqString("ReadReq"); 41static const std::string WriteReqString("WriteReq"); |
45static const std::string WriteReqNoAckString("WriteReqNoAck"); | 42static const std::string WriteReqNoAckString("WriteReqNoAck|Writeback"); |
46static const std::string ReadRespString("ReadResp"); 47static const std::string WriteRespString("WriteResp"); | 43static const std::string ReadRespString("ReadResp"); 44static const std::string WriteRespString("WriteResp"); |
45static const std::string SoftPFReqString("SoftPFReq"); 46static const std::string SoftPFRespString("SoftPFResp"); 47static const std::string HardPFReqString("HardPFReq"); 48static const std::string HardPFRespString("HardPFResp"); 49static const std::string InvalidateReqString("InvalidateReq"); 50static const std::string WriteInvalidateReqString("WriteInvalidateReq"); 51static const std::string UpgradeReqString("UpgradeReq"); 52static const std::string ReadExReqString("ReadExReq"); 53static const std::string ReadExRespString("ReadExResp"); |
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48static const std::string OtherCmdString("<other>"); 49 50const std::string & 51Packet::cmdString() const 52{ 53 switch (cmd) { 54 case ReadReq: return ReadReqString; 55 case WriteReq: return WriteReqString; 56 case WriteReqNoAck: return WriteReqNoAckString; 57 case ReadResp: return ReadRespString; 58 case WriteResp: return WriteRespString; | 54static const std::string OtherCmdString("<other>"); 55 56const std::string & 57Packet::cmdString() const 58{ 59 switch (cmd) { 60 case ReadReq: return ReadReqString; 61 case WriteReq: return WriteReqString; 62 case WriteReqNoAck: return WriteReqNoAckString; 63 case ReadResp: return ReadRespString; 64 case WriteResp: return WriteRespString; |
65 case SoftPFReq: return SoftPFReqString; 66 case SoftPFResp: return SoftPFRespString; 67 case HardPFReq: return HardPFReqString; 68 case HardPFResp: return HardPFRespString; 69 case InvalidateReq: return InvalidateReqString; 70 case WriteInvalidateReq:return WriteInvalidateReqString; 71 case UpgradeReq: return UpgradeReqString; 72 case ReadExReq: return ReadExReqString; 73 case ReadExResp: return ReadExRespString; |
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59 default: return OtherCmdString; 60 } 61} 62 63const std::string & 64Packet::cmdIdxToString(Packet::Command idx) 65{ 66 switch (idx) { 67 case ReadReq: return ReadReqString; 68 case WriteReq: return WriteReqString; 69 case WriteReqNoAck: return WriteReqNoAckString; 70 case ReadResp: return ReadRespString; 71 case WriteResp: return WriteRespString; | 74 default: return OtherCmdString; 75 } 76} 77 78const std::string & 79Packet::cmdIdxToString(Packet::Command idx) 80{ 81 switch (idx) { 82 case ReadReq: return ReadReqString; 83 case WriteReq: return WriteReqString; 84 case WriteReqNoAck: return WriteReqNoAckString; 85 case ReadResp: return ReadRespString; 86 case WriteResp: return WriteRespString; |
87 case SoftPFReq: return SoftPFReqString; 88 case SoftPFResp: return SoftPFRespString; 89 case HardPFReq: return HardPFReqString; 90 case HardPFResp: return HardPFRespString; 91 case InvalidateReq: return InvalidateReqString; 92 case WriteInvalidateReq:return WriteInvalidateReqString; 93 case UpgradeReq: return UpgradeReqString; 94 case ReadExReq: return ReadExReqString; 95 case ReadExResp: return ReadExRespString; |
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72 default: return OtherCmdString; 73 } 74} 75 76/** delete the data pointed to in the data pointer. Ok to call to matter how 77 * data was allocted. */ 78void 79Packet::deleteData() --- 30 unchanged lines hidden (view full) --- 110 Addr e2 = p->getAddr() + p->getSize() - 1; 111 112 return !(s1 > e2 || e1 < s2); 113} 114 115bool 116fixPacket(Packet *func, Packet *timing) 117{ | 96 default: return OtherCmdString; 97 } 98} 99 100/** delete the data pointed to in the data pointer. Ok to call to matter how 101 * data was allocted. */ 102void 103Packet::deleteData() --- 30 unchanged lines hidden (view full) --- 134 Addr e2 = p->getAddr() + p->getSize() - 1; 135 136 return !(s1 > e2 || e1 < s2); 137} 138 139bool 140fixPacket(Packet *func, Packet *timing) 141{ |
118 Addr funcStart = func->getAddr(); 119 Addr funcEnd = func->getAddr() + func->getSize() - 1; 120 Addr timingStart = timing->getAddr(); 121 Addr timingEnd = timing->getAddr() + timing->getSize() - 1; 122 123 assert(!(funcStart > timingEnd || timingStart < funcEnd)); 124 125 if (DTRACE(FunctionalAccess)) { 126 DebugOut() << func; 127 DebugOut() << timing; 128 } 129 130 // this packet can't solve our problem, continue on 131 if (!timing->hasData()) 132 return true; 133 134 if (func->isRead()) { 135 if (funcStart >= timingStart && funcEnd <= timingEnd) { 136 func->allocate(); 137 memcpy(func->getPtr<uint8_t>(), timing->getPtr<uint8_t>() + 138 funcStart - timingStart, func->getSize()); 139 func->result = Packet::Success; 140 return false; 141 } else { 142 // In this case the timing packet only partially satisfies the 143 // requset, so we would need more information to make this work. 144 // Like bytes valid in the packet or something, so the request could 145 // continue and get this bit of possibly newer data along with the 146 // older data not written to yet. 147 panic("Timing packet only partially satisfies the functional" 148 "request. Now what?"); 149 } 150 } else if (func->isWrite()) { 151 if (funcStart >= timingStart) { 152 memcpy(timing->getPtr<uint8_t>() + (funcStart - timingStart), 153 func->getPtr<uint8_t>(), 154 funcStart - std::min(funcEnd, timingEnd)); 155 } else { // timingStart > funcStart 156 memcpy(timing->getPtr<uint8_t>(), 157 func->getPtr<uint8_t>() + (timingStart - funcStart), 158 timingStart - std::min(funcEnd, timingEnd)); 159 } 160 // we always want to keep going with a write 161 return true; 162 } else 163 panic("Don't know how to handle command type %#x\n", 164 func->cmdToIndex()); 165 | 142 panic("Need to implement!"); |
166} | 143} |
167 168 169std::ostream & 170operator<<(std::ostream &o, const Packet &p) 171{ 172 173 o << "[0x"; 174 o.setf(std::ios_base::hex, std::ios_base::showbase); 175 o << p.getAddr(); 176 o.unsetf(std::ios_base::hex| std::ios_base::showbase); 177 o << ":"; 178 o.setf(std::ios_base::hex, std::ios_base::showbase); 179 o << p.getAddr() + p.getSize() - 1 << "] "; 180 o.unsetf(std::ios_base::hex| std::ios_base::showbase); 181 182 if (p.result == Packet::Success) 183 o << "Successful "; 184 if (p.result == Packet::BadAddress) 185 o << "BadAddress "; 186 if (p.result == Packet::Nacked) 187 o << "Nacked "; 188 if (p.result == Packet::Unknown) 189 o << "Inflight "; 190 191 if (p.isRead()) 192 o << "Read "; 193 if (p.isWrite()) 194 o << "Read "; 195 if (p.isInvalidate()) 196 o << "Read "; 197 if (p.isRequest()) 198 o << "Request "; 199 if (p.isResponse()) 200 o << "Response "; 201 if (p.hasData()) 202 o << "w/Data "; 203 204 o << std::endl; 205 return o; 206} 207 | |