port.cc revision 2632:1bb2f91485ea 
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/packet_impl.hh"
35#include "mem/port.hh"
36
37void
38Port::blobHelper(Addr addr, uint8_t *p, int size, Command cmd)
39{
40    Request req(false);
41    Packet pkt;
42    pkt.req = &req;
43    pkt.cmd = cmd;
44    pkt.dest = Packet::Broadcast;
45
46    for (ChunkGenerator gen(addr, size, peerBlockSize());
47         !gen.done(); gen.next()) {
48        req.setPaddr(pkt.addr = gen.addr());
49        req.setSize(pkt.size = gen.size());
50        pkt.dataStatic(p);
51        sendFunctional(&pkt);
52        p += gen.size();
53    }
54}
55
56void
57Port::writeBlob(Addr addr, uint8_t *p, int size)
58{
59    blobHelper(addr, p, size, Write);
60}
61
62void
63Port::readBlob(Addr addr, uint8_t *p, int size)
64{
65    blobHelper(addr, p, size, Read);
66}
67
68void
69Port::memsetBlob(Addr addr, uint8_t val, int size)
70{
71    // quick and dirty...
72    uint8_t *buf = new uint8_t[size];
73
74    memset(buf, val, size);
75    blobHelper(addr, buf, size, Write);
76
77    delete [] buf;
78}
79