port.cc revision 2642:c162e0359b49 
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