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/*
* Copyright 2019 Google, Inc.
*
* 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 "arch/arm/fastmodel/iris/cpu.hh"
#include "arch/arm/fastmodel/iris/thread_context.hh"
#include "scx/scx.h"
#include "sim/serialize.hh"
namespace Iris
{
BaseCPU::BaseCPU(BaseCPUParams *params, sc_core::sc_module *_evs) :
::BaseCPU::BaseCPU(params), evs(_evs),
clockEvent(nullptr), periodAttribute(nullptr)
{
sc_core::sc_attr_base *base;
const auto &event_vec = evs->get_child_events();
auto event_it = std::find_if(event_vec.begin(), event_vec.end(),
[](const sc_core::sc_event *e) -> bool {
return e->basename() == ClockEventName; });
if (event_it != event_vec.end())
clockEvent = *event_it;
base = evs->get_attribute(PeriodAttributeName);
periodAttribute = dynamic_cast<sc_core::sc_attribute<Tick> *>(base);
panic_if(base && !periodAttribute,
"The EVS clock period attribute is not of type "
"sc_attribute<Tick>.");
base = evs->get_attribute(SendFunctionalAttributeName);
sendFunctional =
dynamic_cast<sc_core::sc_attribute<PortProxy::SendFunctionalFunc> *>(
base);
panic_if(base && !sendFunctional,
"The EVS send functional attribute is not of type "
"sc_attribute<PortProxy::SendFunctionalFunc>.");
// Make sure fast model knows we're using debugging mechanisms to control
// the simulation, and it shouldn't shut down if simulation time stops
// for some reason. Despite the misleading name, this doesn't start a CADI
// server because it's first parameter is false.
scx::scx_start_cadi_server(false, false, true);
}
BaseCPU::~BaseCPU()
{
for (auto &tc: threadContexts)
delete tc;
threadContexts.clear();
}
Counter
BaseCPU::totalInsts() const
{
Counter count = 0;
for (auto *tc: threadContexts)
count += tc->getCurrentInstCount();
return count;
}
void
BaseCPU::init()
{
::BaseCPU::init();
for (auto *tc: threadContexts)
tc->initMemProxies(tc);
}
void
BaseCPU::serializeThread(CheckpointOut &cp, ThreadID tid) const
{
::serialize(*threadContexts[tid], cp);
}
} // namespace Iris