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/*
* Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _LINUX_DMA_MAPPING_OVERRIDE_H
#define _LINUX_DMA_MAPPING_OVERRIDE_H
#include <linux/version.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0)
#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <linux/iommu.h>
#define DMA_FOR_NVLINK (1 << 5)
#define NVLINK_PHY_BIT 37
void dma_qualify_ioprot(enum dma_data_direction dir, unsigned long *ioprot);
void dma_marshal_handle(enum dma_data_direction dir, dma_addr_t *handle);
void dma_unmarshal_handle(enum dma_data_direction dir, dma_addr_t *handle);
#endif
#endif
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