b49efd7624
And unlike the other helpers we don't require a <asm/dma-direct.h> as this helper is a special case for ia64 only, and this keeps it as simple as possible. Signed-off-by: Christoph Hellwig <hch@lst.de>
51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
/*
|
|
* Copyright 2010 Tilera Corporation. All Rights Reserved.
|
|
*
|
|
* 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, version 2.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
|
|
* NON INFRINGEMENT. See the GNU General Public License for
|
|
* more details.
|
|
*/
|
|
|
|
#ifndef _ASM_TILE_DMA_MAPPING_H
|
|
#define _ASM_TILE_DMA_MAPPING_H
|
|
|
|
#include <linux/mm.h>
|
|
#include <linux/scatterlist.h>
|
|
#include <linux/cache.h>
|
|
#include <linux/io.h>
|
|
|
|
#ifdef __tilegx__
|
|
#define ARCH_HAS_DMA_GET_REQUIRED_MASK
|
|
#endif
|
|
|
|
extern const struct dma_map_ops *tile_dma_map_ops;
|
|
extern const struct dma_map_ops *gx_pci_dma_map_ops;
|
|
extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
|
|
extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
|
|
|
|
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
|
|
{
|
|
return tile_dma_map_ops;
|
|
}
|
|
|
|
static inline dma_addr_t get_dma_offset(struct device *dev)
|
|
{
|
|
return dev->archdata.dma_offset;
|
|
}
|
|
|
|
static inline void set_dma_offset(struct device *dev, dma_addr_t off)
|
|
{
|
|
dev->archdata.dma_offset = off;
|
|
}
|
|
|
|
#define HAVE_ARCH_DMA_SET_MASK 1
|
|
int dma_set_mask(struct device *dev, u64 mask);
|
|
|
|
#endif /* _ASM_TILE_DMA_MAPPING_H */
|