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Diffstat (limited to 'drivers/ieee1394/dma.h')
-rw-r--r--drivers/ieee1394/dma.h89
1 files changed, 0 insertions, 89 deletions
diff --git a/drivers/ieee1394/dma.h b/drivers/ieee1394/dma.h
deleted file mode 100644
index 467373cab8e..00000000000
--- a/drivers/ieee1394/dma.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * DMA region bookkeeping routines
- *
- * Copyright (C) 2002 Maas Digital LLC
- *
- * This code is licensed under the GPL. See the file COPYING in the root
- * directory of the kernel sources for details.
- */
-
-#ifndef IEEE1394_DMA_H
-#define IEEE1394_DMA_H
-
-#include <asm/types.h>
-
-struct file;
-struct pci_dev;
-struct scatterlist;
-struct vm_area_struct;
-
-/**
- * struct dma_prog_region - small contiguous DMA buffer
- * @kvirt: kernel virtual address
- * @dev: PCI device
- * @n_pages: number of kernel pages
- * @bus_addr: base bus address
- *
- * a small, physically contiguous DMA buffer with random-access, synchronous
- * usage characteristics
- */
-struct dma_prog_region {
- unsigned char *kvirt;
- struct pci_dev *dev;
- unsigned int n_pages;
- dma_addr_t bus_addr;
-};
-
-/* clear out all fields but do not allocate any memory */
-void dma_prog_region_init(struct dma_prog_region *prog);
-int dma_prog_region_alloc(struct dma_prog_region *prog, unsigned long n_bytes,
- struct pci_dev *dev);
-void dma_prog_region_free(struct dma_prog_region *prog);
-
-static inline dma_addr_t dma_prog_region_offset_to_bus(
- struct dma_prog_region *prog, unsigned long offset)
-{
- return prog->bus_addr + offset;
-}
-
-/**
- * struct dma_region - large non-contiguous DMA buffer
- * @virt: kernel virtual address
- * @dev: PCI device
- * @n_pages: number of kernel pages
- * @n_dma_pages: number of IOMMU pages
- * @sglist: IOMMU mapping
- * @direction: PCI_DMA_TODEVICE, etc.
- *
- * a large, non-physically-contiguous DMA buffer with streaming, asynchronous
- * usage characteristics
- */
-struct dma_region {
- unsigned char *kvirt;
- struct pci_dev *dev;
- unsigned int n_pages;
- unsigned int n_dma_pages;
- struct scatterlist *sglist;
- int direction;
-};
-
-void dma_region_init(struct dma_region *dma);
-int dma_region_alloc(struct dma_region *dma, unsigned long n_bytes,
- struct pci_dev *dev, int direction);
-void dma_region_free(struct dma_region *dma);
-void dma_region_sync_for_cpu(struct dma_region *dma, unsigned long offset,
- unsigned long len);
-void dma_region_sync_for_device(struct dma_region *dma, unsigned long offset,
- unsigned long len);
-int dma_region_mmap(struct dma_region *dma, struct file *file,
- struct vm_area_struct *vma);
-dma_addr_t dma_region_offset_to_bus(struct dma_region *dma,
- unsigned long offset);
-
-/**
- * dma_region_i - macro to index into a DMA region (or dma_prog_region)
- */
-#define dma_region_i(_dma, _type, _index) \
- ( ((_type*) ((_dma)->kvirt)) + (_index) )
-
-#endif /* IEEE1394_DMA_H */