src/dev/hsa/kfd_event_defines.h

/*
 * Copyright (c) 2016-2019 Advanced Micro Devices, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 3. Neither the name of the copyright holder 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 HOLDER 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 KFD_EVENT_DEFINES_H_INCLUDED
#define KFD_EVENT_DEFINES_H_INCLUDED

#include "dev/hsa/kfd_ioctl.h"

namespace gem5
{

#define KFD_GPU_ID_HASH_WIDTH 16

#define PAGE_SHIFT 12
#define KFD_MMAP_TYPE_SHIFT     (62 - PAGE_SHIFT)
#define KFD_MMAP_TYPE_MASK      (0x3ULL << KFD_MMAP_TYPE_SHIFT)
#define KFD_MMAP_TYPE_DOORBELL  (0x3ULL << KFD_MMAP_TYPE_SHIFT)
#define KFD_MMAP_TYPE_EVENTS    (0x2ULL << KFD_MMAP_TYPE_SHIFT)
#define SLOTS_PER_PAGE KFD_SIGNAL_EVENT_LIMIT

#define KFD_MMAP_GPU_ID_SHIFT (46 - PAGE_SHIFT)
#define KFD_MMAP_GPU_ID_MASK (((1ULL << KFD_GPU_ID_HASH_WIDTH) - 1) \
    << KFD_MMAP_GPU_ID_SHIFT)
#define KFD_MMAP_GPU_ID(gpu_id) \
    ((((uint64_t)gpu_id) << KFD_MMAP_GPU_ID_SHIFT) & KFD_MMAP_GPU_ID_MASK)

} // namespace gem5

#endif