tlb.hh

Go to the documentation of this file.

/*
 * 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.
 *
 * Authors: Gabe Black
 */

#ifndef __ARCH_ARM_FASTMODEL_IRIS_TLB_HH__
#define __ARCH_ARM_FASTMODEL_IRIS_TLB_HH__

#include "arch/generic/tlb.hh"

namespace Iris
{

class TLB : public BaseTLB
{
  public:
    TLB(const Params *p) : BaseTLB(p) {}

    void demapPage(Addr vaddr, uint64_t asn) override {}
    void flushAll() override {}
    void takeOverFrom(BaseTLB *otlb) override {}

    Fault translateFunctional(
        const RequestPtr &req, ::ThreadContext *tc, Mode mode) override;
    Fault translateAtomic(
        const RequestPtr &req, ::ThreadContext *tc, Mode mode) override;
    void translateTiming(
        const RequestPtr &req, ::ThreadContext *tc,
        Translation *translation, Mode mode) override;

    Fault
    finalizePhysical(
        const RequestPtr &req, ::ThreadContext *tc, Mode mode) const override
    {
        return NoFault;
    }
};

} // namespace Iris

#endif // __ARCH_ARM_FASTMODEL_IRIS_TLB_HH__