port.cc revision 2665
1/* 2 * Copyright (c) 2002-2005 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: Steve Reinhardt 29 */ 30 31/** 32 * @file Port object definitions. 33 */ 34 35#include "base/chunk_generator.hh" 36#include "base/trace.hh" 37#include "mem/packet_impl.hh" 38#include "mem/port.hh" 39 40void 41Port::setPeer(Port *port) 42{ 43 DPRINTF(Config, "setting peer to %s\n", port->name()); 44 peer = port; 45} 46 47void 48Port::blobHelper(Addr addr, uint8_t *p, int size, Packet::Command cmd) 49{ 50 Request req; 51 Packet pkt(&req, cmd, Packet::Broadcast); 52 53 for (ChunkGenerator gen(addr, size, peerBlockSize()); 54 !gen.done(); gen.next()) { 55 req.setPhys(gen.addr(), gen.size(), 0); 56 pkt.reinitFromRequest(); 57 pkt.dataStatic(p); 58 sendFunctional(&pkt); 59 p += gen.size(); 60 } 61} 62 63void 64Port::writeBlob(Addr addr, uint8_t *p, int size) 65{ 66 blobHelper(addr, p, size, Packet::WriteReq); 67} 68 69void 70Port::readBlob(Addr addr, uint8_t *p, int size) 71{ 72 blobHelper(addr, p, size, Packet::ReadReq); 73} 74 75void 76Port::memsetBlob(Addr addr, uint8_t val, int size) 77{ 78 // quick and dirty... 79 uint8_t *buf = new uint8_t[size]; 80 81 memset(buf, val, size); 82 blobHelper(addr, buf, size, Packet::WriteReq); 83 84 delete [] buf; 85} 86