This change implements channel updates, and also reworks the scheduler to delegate more to the gem5 event queue by taking advantage of event priorities to ensure things happen in the right order. There's a lengthy comment in scheduler.hh describes how that all works. Change-Id: I5dee71b86b2e612bb720a4429f3a72e4b7c6d01f Reviewed-on: https://gem5-review.googlesource.com/11710 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
219 lines
4.7 KiB
C++
219 lines
4.7 KiB
C++
/*
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* Copyright 2018 Google, Inc.
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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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* Authors: Gabe Black
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*/
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#include "base/logging.hh"
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#include "systemc/core/channel.hh"
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#include "systemc/ext/core/sc_prim.hh"
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namespace sc_core
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{
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sc_prim_channel::sc_prim_channel() :
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_gem5_channel(new sc_gem5::Channel(this))
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{}
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sc_prim_channel::sc_prim_channel(const char *_name) :
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sc_object(_name), _gem5_channel(new sc_gem5::Channel(this))
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{}
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sc_prim_channel::~sc_prim_channel() { delete _gem5_channel; }
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void
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sc_prim_channel::request_update()
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{
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_gem5_channel->requestUpdate();
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}
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void
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sc_prim_channel::async_request_update()
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{
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_gem5_channel->asyncRequestUpdate();
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}
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void
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sc_prim_channel::next_trigger()
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{
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::sc_core::next_trigger();
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}
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void
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sc_prim_channel::next_trigger(const sc_event &e)
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{
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::sc_core::next_trigger(e);
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}
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void
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sc_prim_channel::next_trigger(const sc_event_or_list &eol)
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{
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::sc_core::next_trigger(eol);
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}
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void
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sc_prim_channel::next_trigger(const sc_event_and_list &eal)
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{
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::sc_core::next_trigger(eal);
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}
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void
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sc_prim_channel::next_trigger(const sc_time &t)
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{
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::sc_core::next_trigger(t);
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}
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void
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sc_prim_channel::next_trigger(double d, sc_time_unit u)
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{
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::sc_core::next_trigger(d, u);
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}
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void
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sc_prim_channel::next_trigger(const sc_time &t, const sc_event &e)
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{
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::sc_core::next_trigger(t, e);
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}
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void
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sc_prim_channel::next_trigger(double d, sc_time_unit u, const sc_event &e)
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{
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::sc_core::next_trigger(d, u, e);
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}
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void
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sc_prim_channel::next_trigger(const sc_time &t, const sc_event_or_list &eol)
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{
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::sc_core::next_trigger(t, eol);
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}
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void
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sc_prim_channel::next_trigger(
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double d, sc_time_unit u, const sc_event_or_list &eol)
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{
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::sc_core::next_trigger(d, u, eol);
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}
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void
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sc_prim_channel::next_trigger(const sc_time &t, const sc_event_and_list &eal)
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{
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::sc_core::next_trigger(t, eal);
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}
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void
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sc_prim_channel::next_trigger(
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double d, sc_time_unit u, const sc_event_and_list &eal)
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{
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::sc_core::next_trigger(d, u, eal);
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}
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bool
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sc_prim_channel::timed_out()
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{
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warn("%s not implemented.\n", __PRETTY_FUNCTION__);
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return false;
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}
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void
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sc_prim_channel::wait()
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{
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::sc_core::wait();
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}
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void
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sc_prim_channel::wait(int i)
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{
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::sc_core::wait(i);
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}
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void
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sc_prim_channel::wait(const sc_event &e)
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{
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::sc_core::wait(e);
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}
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void
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sc_prim_channel::wait(const sc_event_or_list &eol)
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{
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::sc_core::wait(eol);
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}
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void
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sc_prim_channel::wait(const sc_event_and_list &eal)
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{
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::sc_core::wait(eal);
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}
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void
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sc_prim_channel::wait(const sc_time &t)
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{
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::sc_core::wait(t);
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}
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void
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sc_prim_channel::wait(double d, sc_time_unit u)
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{
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::sc_core::wait(d, u);
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}
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void
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sc_prim_channel::wait(const sc_time &t, const sc_event &e)
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{
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::sc_core::wait(t, e);
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}
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void
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sc_prim_channel::wait(double d, sc_time_unit u, const sc_event &e)
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{
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::sc_core::wait(d, u, e);
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}
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void
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sc_prim_channel::wait(const sc_time &t, const sc_event_or_list &eol)
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{
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::sc_core::wait(t, eol);
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}
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void
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sc_prim_channel::wait(double d, sc_time_unit u, const sc_event_or_list &eol)
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{
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::sc_core::wait(d, u, eol);
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}
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void
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sc_prim_channel::wait(const sc_time &t, const sc_event_and_list &eal)
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{
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::sc_core::wait(t, eal);
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}
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void
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sc_prim_channel::wait(double d, sc_time_unit u, const sc_event_and_list &eal)
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{
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::sc_core::wait(d, u, eal);
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}
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} // namespace sc_core
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