src/mem/ruby/slicc_interface/AbstractCacheEntry.cc

/*
 * Copyright (c) 2020 ARM Limited
 * All rights reserved
 *
 * The license below extends only to copyright in the software and shall
 * not be construed as granting a license to any other intellectual
 * property including but not limited to intellectual property relating
 * to a hardware implementation of the functionality of the software
 * licensed hereunder.  You may use the software subject to the license
 * terms below provided that you ensure that this notice is replicated
 * unmodified and in its entirety in all distributions of the software,
 * modified or unmodified, in source code or in binary form.
 *
 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution;
 * neither the name of the copyright holders nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#include "mem/ruby/slicc_interface/AbstractCacheEntry.hh"

#include "base/trace.hh"
#include "debug/RubyCache.hh"

AbstractCacheEntry::AbstractCacheEntry() : ReplaceableEntry()
{
    m_Permission = AccessPermission_NotPresent;
    m_Address = 0;
    m_locked = -1;
    m_last_touch_tick = 0;
    m_htmInReadSet = false;
    m_htmInWriteSet = false;
}

AbstractCacheEntry::~AbstractCacheEntry()
{
}

// Get cache permission
AccessPermission
AbstractCacheEntry::getPermission() const
{
    return m_Permission;
}

void
AbstractCacheEntry::changePermission(AccessPermission new_perm)
{
    m_Permission = new_perm;
    if ((new_perm == AccessPermission_Invalid) ||
        (new_perm == AccessPermission_NotPresent)) {
        m_locked = -1;
    }
}

void
AbstractCacheEntry::setLocked(int context)
{
    DPRINTF(RubyCache, "Setting Lock for addr: %#x to %d\n", m_Address, context);
    m_locked = context;
}

void
AbstractCacheEntry::clearLocked()
{
    DPRINTF(RubyCache, "Clear Lock for addr: %#x\n", m_Address);
    m_locked = -1;
}

bool
AbstractCacheEntry::isLocked(int context) const
{
    DPRINTF(RubyCache, "Testing Lock for addr: %#llx cur %d con %d\n",
            m_Address, m_locked, context);
    return m_locked == context;
}

void
AbstractCacheEntry::setInHtmReadSet(bool val)
{
    m_htmInReadSet = val;
}

void
AbstractCacheEntry::setInHtmWriteSet(bool val)
{
    m_htmInWriteSet = val;
}

bool
AbstractCacheEntry::getInHtmReadSet() const
{
    return m_htmInReadSet;
}

bool
AbstractCacheEntry::getInHtmWriteSet() const
{
    return m_htmInWriteSet;
}