virtio_dma_buf.h

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/* SPDX-License-Identifier: GPL-2.0 */
/*
 * dma-bufs for virtio exported objects
 *
 * Copyright (C) 2020 Google, Inc.
 */
 
#ifndef _LINUX_VIRTIO_DMA_BUF_H
#define _LINUX_VIRTIO_DMA_BUF_H
 
#include <linux/dma-buf.h>
#include <linux/uuid.h>
#include <linux/virtio.h>
 
struct virtio_dma_buf_ops {
    struct dma_buf_ops ops;
    int (*device_attach)(struct dma_buf *dma_buf,
                 struct dma_buf_attachment *attach);
    int (*get_uuid)(struct dma_buf *dma_buf, uuid_t *uuid);
};
 
int virtio_dma_buf_attach(struct dma_buf *dma_buf,
              struct dma_buf_attachment *attach);
 
struct dma_buf *virtio_dma_buf_export
    (const struct dma_buf_export_info *exp_info);
bool is_virtio_dma_buf(struct dma_buf *dma_buf);
int virtio_dma_buf_get_uuid(struct dma_buf *dma_buf, uuid_t *uuid);
 
#endif /* _LINUX_VIRTIO_DMA_BUF_H */