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