[net-next-2.6.git] / arch / mips / include / asm / dma-mapping.h

#ifndef _ASM_DMA_MAPPING_H
#define _ASM_DMA_MAPPING_H

#include <asm/scatterlist.h>
#include <asm/cache.h>
#include <asm-generic/dma-coherent.h>

#include <dma-coherence.h>

extern struct dma_map_ops *mips_dma_map_ops;

static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
	if (dev && dev->archdata.dma_ops)
		return dev->archdata.dma_ops;
	else
		return mips_dma_map_ops;
}

static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
	if (!dev->dma_mask)
		return 0;

	return addr + size <= *dev->dma_mask;
}

static inline void dma_mark_clean(void *addr, size_t size) {}

#include <asm-generic/dma-mapping-common.h>

static inline int dma_supported(struct device *dev, u64 mask)
{
	struct dma_map_ops *ops = get_dma_ops(dev);
	return ops->dma_supported(dev, mask);
}

static inline int dma_mapping_error(struct device *dev, u64 mask)
{
	struct dma_map_ops *ops = get_dma_ops(dev);
	return ops->mapping_error(dev, mask);
}

static inline int
dma_set_mask(struct device *dev, u64 mask)
{
	if(!dev->dma_mask || !dma_supported(dev, mask))
		return -EIO;

	*dev->dma_mask = mask;

	return 0;
}

extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
	       enum dma_data_direction direction);

static inline void *dma_alloc_coherent(struct device *dev, size_t size,
				       dma_addr_t *dma_handle, gfp_t gfp)
{
	void *ret;
	struct dma_map_ops *ops = get_dma_ops(dev);

	ret = ops->alloc_coherent(dev, size, dma_handle, gfp);

	debug_dma_alloc_coherent(dev, size, *dma_handle, ret);

	return ret;
}

static inline void dma_free_coherent(struct device *dev, size_t size,
				     void *vaddr, dma_addr_t dma_handle)
{
	struct dma_map_ops *ops = get_dma_ops(dev);

	ops->free_coherent(dev, size, vaddr, dma_handle);

	debug_dma_free_coherent(dev, size, vaddr, dma_handle);
}


void *dma_alloc_noncoherent(struct device *dev, size_t size,
			   dma_addr_t *dma_handle, gfp_t flag);

void dma_free_noncoherent(struct device *dev, size_t size,
			 void *vaddr, dma_addr_t dma_handle);

#endif /* _ASM_DMA_MAPPING_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASM_DMA_MAPPING_H
	2	#define _ASM_DMA_MAPPING_H
	3
	4	#include <asm/scatterlist.h>
	5	#include <asm/cache.h>
f8ac0425	6	#include <asm-generic/dma-coherent.h>
1da177e4	7
48e1fd5a	8	#include <dma-coherence.h>
1da177e4	9
48e1fd5a	10	extern struct dma_map_ops *mips_dma_map_ops;
1da177e4	11
48e1fd5a DD	12	static inline struct dma_map_ops get_dma_ops(struct device dev)
	13	{
	14	if (dev && dev->archdata.dma_ops)
	15	return dev->archdata.dma_ops;
	16	else
	17	return mips_dma_map_ops;
	18	}
1da177e4	19
48e1fd5a DD	20	static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
	21	{
	22	if (!dev->dma_mask)
	23	return 0;
1da177e4	24
48e1fd5a DD	25	return addr + size <= *dev->dma_mask;
	26	}
	27
	28	static inline void dma_mark_clean(void *addr, size_t size) {}
	29
	30	#include <asm-generic/dma-mapping-common.h>
	31
	32	static inline int dma_supported(struct device *dev, u64 mask)
4f29c057	33	{
48e1fd5a DD	34	struct dma_map_ops *ops = get_dma_ops(dev);
48e1fd5a DD	35	return ops->dma_supported(dev, mask);
4f29c057 AN	36	}
4f29c057 AN	37
48e1fd5a DD	38	static inline int dma_mapping_error(struct device *dev, u64 mask)
	39	{
	40	struct dma_map_ops *ops = get_dma_ops(dev);
	41	return ops->mapping_error(dev, mask);
	42	}
1da177e4 LT	43
	44	static inline int
	45	dma_set_mask(struct device *dev, u64 mask)
	46	{
	47	if(!dev->dma_mask \|\| !dma_supported(dev, mask))
	48	return -EIO;
	49
	50	*dev->dma_mask = mask;
	51
	52	return 0;
	53	}
	54
d3fa72e4	55	extern void dma_cache_sync(struct device dev, void vaddr, size_t size,
1da177e4 LT	56	enum dma_data_direction direction);
1da177e4 LT	57
48e1fd5a DD	58	static inline void dma_alloc_coherent(struct device dev, size_t size,
	59	dma_addr_t *dma_handle, gfp_t gfp)
	60	{
	61	void *ret;
	62	struct dma_map_ops *ops = get_dma_ops(dev);
	63
	64	ret = ops->alloc_coherent(dev, size, dma_handle, gfp);
	65
	66	debug_dma_alloc_coherent(dev, size, *dma_handle, ret);
	67
	68	return ret;
	69	}
	70
	71	static inline void dma_free_coherent(struct device *dev, size_t size,
	72	void *vaddr, dma_addr_t dma_handle)
	73	{
	74	struct dma_map_ops *ops = get_dma_ops(dev);
	75
	76	ops->free_coherent(dev, size, vaddr, dma_handle);
	77
	78	debug_dma_free_coherent(dev, size, vaddr, dma_handle);
	79	}
	80
	81
	82	void dma_alloc_noncoherent(struct device dev, size_t size,
	83	dma_addr_t *dma_handle, gfp_t flag);
	84
	85	void dma_free_noncoherent(struct device *dev, size_t size,
	86	void *vaddr, dma_addr_t dma_handle);
	87
1da177e4	88	#endif /* _ASM_DMA_MAPPING_H */