packet.cc (3607:7b7dd28784c4) packet.cc (3918:1f9a98d198e8)
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;

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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>
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;

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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
39#include <cstring>
40#include "base/misc.hh"
41#include "base/trace.hh"
42#include "mem/packet.hh"
43
44static const std::string ReadReqString("ReadReq");
45static const std::string WriteReqString("WriteReq");
46static const std::string WriteReqNoAckString("WriteReqNoAck|Writeback");
47static const std::string ReadRespString("ReadResp");

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178
179 // this packet can't solve our problem, continue on
180 if (!timing->hasData())
181 return true;
182
183 if (func->isRead()) {
184 if (funcStart >= timingStart && funcEnd <= timingEnd) {
185 func->allocate();
40#include "base/misc.hh"
41#include "base/trace.hh"
42#include "mem/packet.hh"
43
44static const std::string ReadReqString("ReadReq");
45static const std::string WriteReqString("WriteReq");
46static const std::string WriteReqNoAckString("WriteReqNoAck|Writeback");
47static const std::string ReadRespString("ReadResp");

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178
179 // this packet can't solve our problem, continue on
180 if (!timing->hasData())
181 return true;
182
183 if (func->isRead()) {
184 if (funcStart >= timingStart && funcEnd <= timingEnd) {
185 func->allocate();
186 memcpy(func->getPtr(), timing->getPtr() +
186 std::memcpy(func->getPtr<uint8_t>(), timing->getPtr<uint8_t>() +
187 funcStart - timingStart, func->getSize());
188 func->result = Packet::Success;
189 func->flags |= SATISFIED;
190 return false;
191 } else {
192 // In this case the timing packet only partially satisfies the
193 // requset, so we would need more information to make this work.
194 // Like bytes valid in the packet or something, so the request could
195 // continue and get this bit of possibly newer data along with the
196 // older data not written to yet.
197 panic("Timing packet only partially satisfies the functional"
198 "request. Now what?");
199 }
200 } else if (func->isWrite()) {
201 if (funcStart >= timingStart) {
187 funcStart - timingStart, func->getSize());
188 func->result = Packet::Success;
189 func->flags |= SATISFIED;
190 return false;
191 } else {
192 // In this case the timing packet only partially satisfies the
193 // requset, so we would need more information to make this work.
194 // Like bytes valid in the packet or something, so the request could
195 // continue and get this bit of possibly newer data along with the
196 // older data not written to yet.
197 panic("Timing packet only partially satisfies the functional"
198 "request. Now what?");
199 }
200 } else if (func->isWrite()) {
201 if (funcStart >= timingStart) {
202 memcpy(timing->getPtr() + (funcStart - timingStart),
202 std::memcpy(timing->getPtr<uint8_t>() + (funcStart - timingStart),
203 func->getPtr<uint8_t>(),
204 (std::min(funcEnd, timingEnd) - funcStart) + 1);
205 } else { // timingStart > funcStart
203 func->getPtr<uint8_t>(),
204 (std::min(funcEnd, timingEnd) - funcStart) + 1);
205 } else { // timingStart > funcStart
206 memcpy(timing->getPtr(),
206 std::memcpy(timing->getPtr<uint8_t>(),
207 func->getPtr<uint8_t>() + (timingStart - funcStart),
208 (std::min(funcEnd, timingEnd) - timingStart) + 1);
209 }
210 // we always want to keep going with a write
211 return true;
212 } else
213 panic("Don't know how to handle command type %#x\n",
214 func->cmdToIndex());

--- 43 unchanged lines hidden --- 		207 func->getPtr<uint8_t>() + (timingStart - funcStart),
208 (std::min(funcEnd, timingEnd) - timingStart) + 1);
209 }
210 // we always want to keep going with a write
211 return true;
212 } else
213 panic("Don't know how to handle command type %#x\n",
214 func->cmdToIndex());

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