cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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videobuf-dma-contig.h (909B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * helper functions for physically contiguous capture buffers
      4 *
      5 * The functions support hardware lacking scatter gather support
      6 * (i.e. the buffers must be linear in physical memory)
      7 *
      8 * Copyright (c) 2008 Magnus Damm
      9 */
     10#ifndef _VIDEOBUF_DMA_CONTIG_H
     11#define _VIDEOBUF_DMA_CONTIG_H
     12
     13#include <linux/dma-mapping.h>
     14#include <media/videobuf-core.h>
     15
     16void videobuf_queue_dma_contig_init(struct videobuf_queue *q,
     17				    const struct videobuf_queue_ops *ops,
     18				    struct device *dev,
     19				    spinlock_t *irqlock,
     20				    enum v4l2_buf_type type,
     21				    enum v4l2_field field,
     22				    unsigned int msize,
     23				    void *priv,
     24				    struct mutex *ext_lock);
     25
     26dma_addr_t videobuf_to_dma_contig(struct videobuf_buffer *buf);
     27void videobuf_dma_contig_free(struct videobuf_queue *q,
     28			      struct videobuf_buffer *buf);
     29
     30#endif /* _VIDEOBUF_DMA_CONTIG_H */