1 files changed, 0 insertions, 102 deletions
diff --git a/include/media/videobuf-dma-sg.h b/include/media/videobuf-dma-sg.h
deleted file mode 100644
index 930ff8d454fc..000000000000
--- a/include/media/videobuf-dma-sg.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * helper functions for SG DMA video4linux capture buffers
- *
- * The functions expect the hardware being able to scatter gather
- * (i.e. the buffers are not linear in physical memory, but fragmented
- * into PAGE_SIZE chunks).  They also assume the driver does not need
- * to touch the video data.
- *
- * (c) 2007 Mauro Carvalho Chehab, <mchehab@kernel.org>
- *
- * Highly based on video-buf written originally by:
- * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org>
- * (c) 2006 Mauro Carvalho Chehab, <mchehab@kernel.org>
- * (c) 2006 Ted Walther and John Sokol
- */
-#ifndef _VIDEOBUF_DMA_SG_H
-#define _VIDEOBUF_DMA_SG_H
-
-#include <media/videobuf-core.h>
-
-/* --------------------------------------------------------------------- */
-
-/*
- * A small set of helper functions to manage buffers (both userland
- * and kernel) for DMA.
- *
- * videobuf_dma_init_*()
- *	creates a buffer.  The userland version takes a userspace
- *	pointer + length.  The kernel version just wants the size and
- *	does memory allocation too using vmalloc_32().
- *
- * videobuf_dma_*()
- *	see Documentation/core-api/dma-api-howto.rst, these functions to
- *	basically the same.  The map function does also build a
- *	scatterlist for the buffer (and unmap frees it ...)
- *
- * videobuf_dma_free()
- *	no comment ...
- *
- */
-
-struct videobuf_dmabuf {
-	u32                 magic;
-
-	/* for userland buffer */
-	int                 offset;
-	size_t		    size;
-	struct page         **pages;
-
-	/* for kernel buffers */
-	void                *vaddr;
-	struct page         **vaddr_pages;
-	dma_addr_t          *dma_addr;
-	struct device       *dev;
-
-	/* for overlay buffers (pci-pci dma) */
-	dma_addr_t          bus_addr;
-
-	/* common */
-	struct scatterlist  *sglist;
-	int                 sglen;
-	unsigned long       nr_pages;
-	int                 direction;
-};
-
-struct videobuf_dma_sg_memory {
-	u32                 magic;
-
-	/* for mmap'ed buffers */
-	struct videobuf_dmabuf  dma;
-};
-
-/*
- * Scatter-gather DMA buffer API.
- *
- * These functions provide a simple way to create a page list and a
- * scatter-gather list from a kernel, userspace of physical address and map the
- * memory for DMA operation.
- *
- * Despite the name, this is totally unrelated to videobuf, except that
- * videobuf-dma-sg uses the same API internally.
- */
-int videobuf_dma_free(struct videobuf_dmabuf *dma);
-
-int videobuf_dma_unmap(struct device *dev, struct videobuf_dmabuf *dma);
-struct videobuf_dmabuf *videobuf_to_dma(struct videobuf_buffer *buf);
-
-void *videobuf_sg_alloc(size_t size);
-
-void videobuf_queue_sg_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);
-
-#endif /* _VIDEOBUF_DMA_SG_H */
-