port.cc revision 2548 
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 "mem/port.hh"
35
36void
37Port::blobHelper(Addr addr, uint8_t *p, int size, Command cmd)
38{
39    Request req(false);
40    Packet pkt;
41    pkt.req = &req;
42    pkt.cmd = cmd;
43
44    for (ChunkGenerator gen(addr, size, peerBlockSize());
45         !gen.done(); gen.next()) {
46        req.setPaddr(pkt.addr = gen.addr());
47        req.setSize(pkt.size = gen.size());
48        pkt.data = p;
49        sendFunctional(pkt);
50        p += gen.size();
51    }
52}
53
54void
55Port::writeBlob(Addr addr, uint8_t *p, int size)
56{
57    blobHelper(addr, p, size, Write);
58}
59
60void
61Port::readBlob(Addr addr, uint8_t *p, int size)
62{
63    blobHelper(addr, p, size, Read);
64}
65
66void
67Port::memsetBlob(Addr addr, uint8_t val, int size)
68{
69    // quick and dirty...
70    uint8_t *buf = new uint8_t[size];
71
72    memset(buf, val, size);
73    blobHelper(addr, buf, size, Write);
74
75    delete [] buf;
76}
77