port.cc revision 3918:1f9a98d198e8 
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
33 * Port object definitions.
34 */
35#include <cstring>
36
37#include "base/chunk_generator.hh"
38#include "base/trace.hh"
39#include "mem/port.hh"
40
41void
42Port::setPeer(Port *port)
43{
44    DPRINTF(Config, "setting peer to %s\n", port->name());
45    peer = port;
46}
47
48void
49Port::blobHelper(Addr addr, uint8_t *p, int size, Packet::Command cmd)
50{
51    Request req;
52    Packet pkt(&req, cmd, Packet::Broadcast);
53
54    for (ChunkGenerator gen(addr, size, peerBlockSize());
55         !gen.done(); gen.next()) {
56        req.setPhys(gen.addr(), gen.size(), 0);
57        pkt.reinitFromRequest();
58        pkt.dataStatic(p);
59        sendFunctional(&pkt);
60        p += gen.size();
61    }
62}
63
64void
65Port::writeBlob(Addr addr, uint8_t *p, int size)
66{
67    blobHelper(addr, p, size, Packet::WriteReq);
68}
69
70void
71Port::readBlob(Addr addr, uint8_t *p, int size)
72{
73    blobHelper(addr, p, size, Packet::ReadReq);
74}
75
76void
77Port::memsetBlob(Addr addr, uint8_t val, int size)
78{
79    // quick and dirty...
80    uint8_t *buf = new uint8_t[size];
81
82    std::memset(buf, val, size);
83    blobHelper(addr, buf, size, Packet::WriteReq);
84
85    delete [] buf;
86}
87