tegrakernel/kernel/nvidia/drivers/video/tegra/nvmap/nv2/nvmap_dmabuf.h

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2022-02-16 09:13:02 -06:00
/*
* 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.
*/
#ifndef __NVMAP_DMABUF_H
#define __NVMAP_DMABUF_H
#include "nvmap_structs.h"
struct nvmap_handle_info {
struct nvmap_handle *handle;
struct list_head maps;
struct mutex maps_lock;
};
struct dma_buf *nvmap_dmabuf_create(void * priv, size_t size);
void nvmap_dmabuf_install_fd(struct dma_buf *dmabuf, int fd);
struct nvmap_handle * nvmap_dmabuf_to_handle(struct dma_buf *dmabuf);
struct dma_buf *nvmap_dmabuf_from_fd(int fd);
int nvmap_dmabuf_is_nvmap(struct dma_buf *dmabuf);
void nvmap_dmabufs_free(struct list_head *dmabuf_list);
#endif /* __NVMAP_DMABUF_H */