60e4ad955d
Encapsulate all ruby-related files in a ruby namespace. Change-Id: If642c9751ecefc35b45c5dd69d85e67813cc5224 Issued-on: https://gem5.atlassian.net/browse/GEM5-984 Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/47307 Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu> Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu> Tested-by: kokoro <noreply+kokoro@google.com>
132 lines
3.4 KiB
C++
132 lines
3.4 KiB
C++
/*
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* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "mem/ruby/structures/TimerTable.hh"
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#include "mem/ruby/system/RubySystem.hh"
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namespace gem5
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{
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namespace ruby
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{
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TimerTable::TimerTable()
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: m_next_time(0)
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{
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m_consumer_ptr = NULL;
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m_next_valid = false;
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m_next_address = 0;
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}
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bool
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TimerTable::isReady(Tick curTime) const
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{
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if (m_map.empty())
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return false;
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if (!m_next_valid) {
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updateNext();
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}
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assert(m_next_valid);
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return (curTime >= m_next_time);
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}
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Addr
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TimerTable::nextAddress() const
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{
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if (!m_next_valid) {
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updateNext();
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}
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assert(m_next_valid);
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return m_next_address;
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}
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void
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TimerTable::set(Addr address, Tick ready_time)
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{
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assert(address == makeLineAddress(address));
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assert(!m_map.count(address));
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m_map[address] = ready_time;
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assert(m_consumer_ptr != NULL);
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m_consumer_ptr->scheduleEventAbsolute(ready_time);
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m_next_valid = false;
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// Don't always recalculate the next ready address
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if (ready_time <= m_next_time) {
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m_next_valid = false;
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}
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}
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void
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TimerTable::unset(Addr address)
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{
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assert(address == makeLineAddress(address));
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assert(m_map.count(address));
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m_map.erase(address);
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// Don't always recalculate the next ready address
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if (address == m_next_address) {
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m_next_valid = false;
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}
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}
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void
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TimerTable::print(std::ostream& out) const
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{
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}
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void
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TimerTable::updateNext() const
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{
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if (m_map.empty()) {
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assert(!m_next_valid);
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return;
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}
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AddressMap::const_iterator i = m_map.begin();
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AddressMap::const_iterator end = m_map.end();
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m_next_address = i->first;
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m_next_time = i->second;
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++i;
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for (; i != end; ++i) {
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if (i->second < m_next_time) {
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m_next_address = i->first;
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m_next_time = i->second;
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}
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}
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m_next_valid = true;
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}
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} // namespace ruby
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} // namespace gem5
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