port.cc revision 8710:aab813d6a162 
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 "debug/Config.hh"
40#include "mem/mem_object.hh"
41#include "mem/port.hh"
42
43Port::Port(const std::string &_name, MemObject *_owner)
44    : portName(_name), peer(NULL), owner(_owner)
45{
46}
47
48Port::~Port()
49{
50}
51
52void
53Port::setPeer(Port *port)
54{
55    DPRINTF(Config, "setting peer to %s\n", port->name());
56
57    peer = port;
58}
59
60void
61Port::setOwner(MemObject *_owner)
62{
63    owner = _owner;
64}
65
66void
67Port::blobHelper(Addr addr, uint8_t *p, int size, MemCmd cmd)
68{
69    Request req;
70
71    for (ChunkGenerator gen(addr, size, peerBlockSize());
72         !gen.done(); gen.next()) {
73        req.setPhys(gen.addr(), gen.size(), 0);
74        Packet pkt(&req, cmd, Packet::Broadcast);
75        pkt.dataStatic(p);
76        sendFunctional(&pkt);
77        p += gen.size();
78    }
79}
80
81void
82Port::writeBlob(Addr addr, uint8_t *p, int size)
83{
84    blobHelper(addr, p, size, MemCmd::WriteReq);
85}
86
87void
88Port::readBlob(Addr addr, uint8_t *p, int size)
89{
90    blobHelper(addr, p, size, MemCmd::ReadReq);
91}
92
93void
94Port::memsetBlob(Addr addr, uint8_t val, int size)
95{
96    // quick and dirty...
97    uint8_t *buf = new uint8_t[size];
98
99    std::memset(buf, val, size);
100    blobHelper(addr, buf, size, MemCmd::WriteReq);
101
102    delete [] buf;
103}
104
105
106void
107Port::printAddr(Addr a)
108{
109    Request req(a, 1, 0);
110    Packet pkt(&req, MemCmd::PrintReq, Packet::Broadcast);
111    Packet::PrintReqState prs(std::cerr);
112    pkt.senderState = &prs;
113
114    sendFunctional(&pkt);
115}
116