port.cc revision 8709 
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::removeConn()
68{
69    if (peer != NULL)
70        peer->getOwner()->deletePortRefs(peer);
71    peer = NULL;
72}
73
74void
75Port::blobHelper(Addr addr, uint8_t *p, int size, MemCmd cmd)
76{
77    Request req;
78
79    for (ChunkGenerator gen(addr, size, peerBlockSize());
80         !gen.done(); gen.next()) {
81        req.setPhys(gen.addr(), gen.size(), 0);
82        Packet pkt(&req, cmd, Packet::Broadcast);
83        pkt.dataStatic(p);
84        sendFunctional(&pkt);
85        p += gen.size();
86    }
87}
88
89void
90Port::writeBlob(Addr addr, uint8_t *p, int size)
91{
92    blobHelper(addr, p, size, MemCmd::WriteReq);
93}
94
95void
96Port::readBlob(Addr addr, uint8_t *p, int size)
97{
98    blobHelper(addr, p, size, MemCmd::ReadReq);
99}
100
101void
102Port::memsetBlob(Addr addr, uint8_t val, int size)
103{
104    // quick and dirty...
105    uint8_t *buf = new uint8_t[size];
106
107    std::memset(buf, val, size);
108    blobHelper(addr, buf, size, MemCmd::WriteReq);
109
110    delete [] buf;
111}
112
113
114void
115Port::printAddr(Addr a)
116{
117    Request req(a, 1, 0);
118    Packet pkt(&req, MemCmd::PrintReq, Packet::Broadcast);
119    Packet::PrintReqState prs(std::cerr);
120    pkt.senderState = &prs;
121
122    sendFunctional(&pkt);
123}
124