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>
100 lines
3.5 KiB
C++
100 lines
3.5 KiB
C++
/*
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* Copyright (c) 2020 ARM Limited
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* All rights reserved.
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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* Copyright (c) 2012 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/common/Consumer.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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Consumer::Consumer(ClockedObject *_em)
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: m_wakeup_event([this]{ processCurrentEvent(); },
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"Consumer Event", false),
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em(_em)
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{ }
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void
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Consumer::scheduleEvent(Cycles timeDelta)
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{
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m_wakeup_ticks.insert(em->clockEdge(timeDelta));
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scheduleNextWakeup();
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}
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void
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Consumer::scheduleEventAbsolute(Tick evt_time)
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{
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m_wakeup_ticks.insert(
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divCeil(evt_time, em->clockPeriod()) * em->clockPeriod());
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scheduleNextWakeup();
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}
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void
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Consumer::scheduleNextWakeup()
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{
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// look for the next tick in the future to schedule
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auto it = m_wakeup_ticks.lower_bound(em->clockEdge());
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if (it != m_wakeup_ticks.end()) {
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Tick when = *it;
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assert(when >= em->clockEdge());
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if (m_wakeup_event.scheduled() && (when < m_wakeup_event.when()))
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em->reschedule(m_wakeup_event, when, true);
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else if (!m_wakeup_event.scheduled())
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em->schedule(m_wakeup_event, when);
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}
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}
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void
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Consumer::processCurrentEvent()
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{
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auto curr = m_wakeup_ticks.begin();
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assert(em->clockEdge() == *curr);
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// remove the current tick from the wakeup list, wake up, and then schedule
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// the next wakeup
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m_wakeup_ticks.erase(curr);
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wakeup();
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scheduleNextWakeup();
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}
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} // namespace ruby
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} // namespace gem5
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