https://github.com/torvalds/linux
- HEAD
- refs/heads/arm64-uaccess
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/certifi-2024.7.4
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/idna-3.7
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/requests-2.32.2
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/setuptools-70.0.0
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/urllib3-2.2.2
- refs/heads/master
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Tip revision: e0dccc3b76fb35bb257b4118367a883073d7390e authored by Linus Torvalds on 24 July 2022, 20:26:27 UTC
Linux 5.19-rc8
Linux 5.19-rc8
Tip revision: e0dccc3
videobuf-dma-contig.h
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* helper functions for physically contiguous capture buffers
*
* The functions support hardware lacking scatter gather support
* (i.e. the buffers must be linear in physical memory)
*
* Copyright (c) 2008 Magnus Damm
*/
#ifndef _VIDEOBUF_DMA_CONTIG_H
#define _VIDEOBUF_DMA_CONTIG_H
#include <linux/dma-mapping.h>
#include <media/videobuf-core.h>
void videobuf_queue_dma_contig_init(struct videobuf_queue *q,
const struct videobuf_queue_ops *ops,
struct device *dev,
spinlock_t *irqlock,
enum v4l2_buf_type type,
enum v4l2_field field,
unsigned int msize,
void *priv,
struct mutex *ext_lock);
dma_addr_t videobuf_to_dma_contig(struct videobuf_buffer *buf);
void videobuf_dma_contig_free(struct videobuf_queue *q,
struct videobuf_buffer *buf);
#endif /* _VIDEOBUF_DMA_CONTIG_H */