port.cc revision 2642
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 29/** 30 * @file Port object definitions. 31 */ 32 33#include "base/chunk_generator.hh" 34#include "base/trace.hh" 35#include "mem/packet_impl.hh" 36#include "mem/port.hh" 37 38void 39Port::setPeer(Port *port) 40{ 41 DPRINTF(Config, "setting peer to %s\n", port->name()); 42 peer = port; 43} 44 45void 46Port::blobHelper(Addr addr, uint8_t *p, int size, Packet::Command cmd) 47{ 48 Request req(false); 49 Packet pkt(&req, cmd, Packet::Broadcast); 50 51 for (ChunkGenerator gen(addr, size, peerBlockSize()); 52 !gen.done(); gen.next()) { 53 req.setPaddr(gen.addr()); 54 req.setSize(gen.size()); 55 pkt.reinitFromRequest(); 56 pkt.dataStatic(p); 57 sendFunctional(&pkt); 58 p += gen.size(); 59 } 60} 61 62void 63Port::writeBlob(Addr addr, uint8_t *p, int size) 64{ 65 blobHelper(addr, p, size, Packet::WriteReq); 66} 67 68void 69Port::readBlob(Addr addr, uint8_t *p, int size) 70{ 71 blobHelper(addr, p, size, Packet::ReadReq); 72} 73 74void 75Port::memsetBlob(Addr addr, uint8_t val, int size) 76{ 77 // quick and dirty... 78 uint8_t *buf = new uint8_t[size]; 79 80 memset(buf, val, size); 81 blobHelper(addr, buf, size, Packet::WriteReq); 82 83 delete [] buf; 84} 85