1a758d4e84
Add an implementation of DMA coherent memory allocator and handling routines for videobuf2, implemented on top of dma_alloc_coherent() call. Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> CC: Pawel Osciak <pawel@osciak.com> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
30 lines
802 B
C
30 lines
802 B
C
/*
|
|
* videobuf2-dma-coherent.h - DMA coherent memory allocator for videobuf2
|
|
*
|
|
* Copyright (C) 2010 Samsung Electronics
|
|
*
|
|
* Author: Pawel Osciak <p.osciak@samsung.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef _MEDIA_VIDEOBUF2_DMA_COHERENT_H
|
|
#define _MEDIA_VIDEOBUF2_DMA_COHERENT_H
|
|
|
|
#include <media/videobuf2-core.h>
|
|
|
|
static inline unsigned long vb2_dma_contig_plane_paddr(
|
|
struct vb2_buffer *vb, unsigned int plane_no)
|
|
{
|
|
return (unsigned long)vb2_plane_cookie(vb, plane_no);
|
|
}
|
|
|
|
void *vb2_dma_contig_init_ctx(struct device *dev);
|
|
void vb2_dma_contig_cleanup_ctx(void *alloc_ctx);
|
|
|
|
extern const struct vb2_mem_ops vb2_dma_contig_memops;
|
|
|
|
#endif
|