1/*
2 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
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#include "mem/ruby/slicc_interface/AbstractCacheEntry.hh"
30
31#include "base/trace.hh"
32#include "debug/RubyCache.hh"
33
34AbstractCacheEntry::AbstractCacheEntry()
35{
36    m_Permission = AccessPermission_NotPresent;
37    m_Address = 0;
38    m_locked = -1;
39}
40
41AbstractCacheEntry::~AbstractCacheEntry()
42{
43}
44
45void
46AbstractCacheEntry::changePermission(AccessPermission new_perm)
47{
48    AbstractEntry::changePermission(new_perm);
49    if ((new_perm == AccessPermission_Invalid) ||
50        (new_perm == AccessPermission_NotPresent)) {
51        m_locked = -1;
52    }
53}
54
55void
56AbstractCacheEntry::setLocked(int context)
57{
58    DPRINTF(RubyCache, "Setting Lock for addr: %#x to %d\n", m_Address, context);
59    m_locked = context;
60}
61
62void
63AbstractCacheEntry::clearLocked()
64{
65    DPRINTF(RubyCache, "Clear Lock for addr: %#x\n", m_Address);
66    m_locked = -1;
67}
68
69bool
70AbstractCacheEntry::isLocked(int context) const
71{
72    DPRINTF(RubyCache, "Testing Lock for addr: %#llx cur %d con %d\n",
73            m_Address, m_locked, context);
74    return m_locked == context;
75}
76