port.cc revision 2982
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 33 * Port object definitions. 34 */ 35 36#include "base/chunk_generator.hh" 37#include "base/trace.hh" 38#include "mem/packet_impl.hh" 39#include "mem/port.hh" 40 41void 42Port::setPeer(Port *port) 43{ 44 DPRINTF(Config, "setting peer to %s\n", port->name()); 45 peer = port; 46} 47 48void 49Port::blobHelper(Addr addr, uint8_t *p, int size, Packet::Command cmd) 50{ 51 Request req; 52 Packet pkt(&req, cmd, Packet::Broadcast); 53 54 for (ChunkGenerator gen(addr, size, peerBlockSize()); 55 !gen.done(); gen.next()) { 56 req.setPhys(gen.addr(), gen.size(), 0); 57 pkt.reinitFromRequest(); 58 pkt.dataStatic(p); 59 sendFunctional(&pkt); 60 p += gen.size(); 61 } 62} 63 64void 65Port::writeBlob(Addr addr, uint8_t *p, int size) 66{ 67 blobHelper(addr, p, size, Packet::WriteReq); 68} 69 70void 71Port::readBlob(Addr addr, uint8_t *p, int size) 72{ 73 blobHelper(addr, p, size, Packet::ReadReq); 74} 75 76void 77Port::memsetBlob(Addr addr, uint8_t val, int size) 78{ 79 // quick and dirty... 80 uint8_t *buf = new uint8_t[size]; 81 82 memset(buf, val, size); 83 blobHelper(addr, buf, size, Packet::WriteReq); 84 85 delete [] buf; 86} 87