diff options
Diffstat (limited to 'src/mem/ruby/system/TimerTable.cc')
-rw-r--r-- | src/mem/ruby/system/TimerTable.cc | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/src/mem/ruby/system/TimerTable.cc b/src/mem/ruby/system/TimerTable.cc deleted file mode 100644 index 38e26e5e9..000000000 --- a/src/mem/ruby/system/TimerTable.cc +++ /dev/null @@ -1,129 +0,0 @@ -/* - * 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 - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "mem/ruby/common/Global.hh" -#include "mem/ruby/system/System.hh" -#include "mem/ruby/system/TimerTable.hh" - -TimerTable::TimerTable() - : m_next_time(0) -{ - m_consumer_ptr = NULL; - m_clockobj_ptr = NULL; - - m_next_valid = false; - m_next_address = Address(0); -} - -bool -TimerTable::isReady() const -{ - if (m_map.empty()) - return false; - - if (!m_next_valid) { - updateNext(); - } - assert(m_next_valid); - return (m_clockobj_ptr->curCycle() >= m_next_time); -} - -const Address& -TimerTable::readyAddress() const -{ - assert(isReady()); - - if (!m_next_valid) { - updateNext(); - } - assert(m_next_valid); - return m_next_address; -} - -void -TimerTable::set(const Address& address, Cycles relative_latency) -{ - assert(address == line_address(address)); - assert(relative_latency > 0); - assert(!m_map.count(address)); - - Cycles ready_time = m_clockobj_ptr->curCycle() + relative_latency; - m_map[address] = ready_time; - assert(m_consumer_ptr != NULL); - m_consumer_ptr-> - scheduleEventAbsolute(m_clockobj_ptr->clockPeriod() * ready_time); - m_next_valid = false; - - // Don't always recalculate the next ready address - if (ready_time <= m_next_time) { - m_next_valid = false; - } -} - -void -TimerTable::unset(const Address& address) -{ - assert(address == line_address(address)); - assert(m_map.count(address)); - m_map.erase(address); - - // Don't always recalculate the next ready address - if (address == m_next_address) { - m_next_valid = false; - } -} - -void -TimerTable::print(std::ostream& out) const -{ -} - -void -TimerTable::updateNext() const -{ - if (m_map.empty()) { - assert(!m_next_valid); - return; - } - - AddressMap::const_iterator i = m_map.begin(); - AddressMap::const_iterator end = m_map.end(); - - m_next_address = i->first; - m_next_time = i->second; - ++i; - - for (; i != end; ++i) { - if (i->second < m_next_time) { - m_next_address = i->first; - m_next_time = i->second; - } - } - - m_next_valid = true; -} |