src/gpu-compute/gpu_render_driver.hh

/*
 * Copyright (c) 2021 Kyle Roarty
 * All Rights Reserved.
 *
 * 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.
 */

#ifndef __GPU_COMPUTE_GPU_RENDER_DRIVER_HH__
#define __GPU_COMPUTE_GPU_RENDER_DRIVER_HH__

#include "cpu/thread_context.hh"
#include "sim/emul_driver.hh"
#include "sim/process.hh"

namespace gem5
{

struct GPURenderDriverParams;

class GPURenderDriver final : public EmulatedDriver
{
  public:
    GPURenderDriver(const GPURenderDriverParams &p);

    int open(ThreadContext *tc, int mode, int flags) override;

    int
    ioctl(ThreadContext *tc, unsigned req, Addr buf) override
    {
        return -EBADF;
    }

    Addr mmap(ThreadContext *tc, Addr start, uint64_t length,
              int prot, int tgt_flags, int tgt_fd, off_t offset) override;
};

} // namespace gem5

#endif // __GPU_COMPUTE_GPU_RENDER_DRIVER_HH__