src/arch/arm/fastmodel/arm/cpu.cc

/*
 * 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
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Authors: Gabe Black
 */

#include "arch/arm/fastmodel/arm/cpu.hh"

#include "scx/scx_iris.h"

namespace FastModel
{

ArmCPU::ArmCPU(FastModelArmCPUParams *params) :
    Iris::ArmCPU(params, scx::scx_get_iris_connection_interface()),
    mem(name() + ".mem", this)
{
}

void
ArmCPU::initState()
{
    auto cntfrq = static_cast<const FastModelArmCPUParams *>(params())->cntfrq;
    for (auto *tc : threadContexts)
        tc->setMiscRegNoEffect(ArmISA::MISCREG_CNTFRQ_EL0, cntfrq);
}

Port &
ArmCPU::getPort(const std::string &if_name, PortID idx)
{
    if (if_name == "mem")
        return mem;
    return Iris::ArmCPU::getPort(if_name, idx);
}

} // namespace FastModel

FastModel::ArmCPU *
FastModelArmCPUParams::create()
{
    return new FastModel::ArmCPU(this);
}