port.cc revision 2665:a124942bacb8 
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