diff options
Diffstat (limited to 'drivers/uio/uio_dmabuf.h')
| -rw-r--r-- | drivers/uio/uio_dmabuf.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/uio/uio_dmabuf.h b/drivers/uio/uio_dmabuf.h new file mode 100644 index 000000000000..30200306d53a --- /dev/null +++ b/drivers/uio/uio_dmabuf.h @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2019 Xilinx, Inc. + * + * Author: Hyun Woo Kwon <hyun.kwon@xilinx.com> + * + * DMA buf support for UIO device + * + */ + +#ifndef _UIO_DMABUF_H_ +#define _UIO_DMABUF_H_ + +struct uio_device; +struct list_head; +struct mutex; + +long uio_dmabuf_map(struct uio_device *dev, struct list_head *dbufs, + struct mutex *dbufs_lock, void __user *user_args); +long uio_dmabuf_unmap(struct uio_device *dev, struct list_head *dbufs, + struct mutex *dbufs_lock, void __user *user_args); + +int uio_dmabuf_cleanup(struct uio_device *dev, struct list_head *dbufs, + struct mutex *dbufs_lock); + +#endif |