[deliverable/linux.git] / arch / s390 / include / asm / dma-mapping.h

#ifndef _ASM_S390_DMA_MAPPING_H
#define _ASM_S390_DMA_MAPPING_H

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/scatterlist.h>
#include <linux/dma-attrs.h>
#include <linux/dma-debug.h>
#include <linux/io.h>

#define DMA_ERROR_CODE		(~(dma_addr_t) 0x0)

extern struct dma_map_ops s390_dma_ops;

static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
	return &s390_dma_ops;
}

static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
				  enum dma_data_direction direction)
{
}

static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
	if (!dev->dma_mask)
		return false;
	return addr + size - 1 <= *dev->dma_mask;
}

#endif /* _ASM_S390_DMA_MAPPING_H */
Commit	Line	Data
828b35f6 JG	1	#ifndef _ASM_S390_DMA_MAPPING_H
	2	#define _ASM_S390_DMA_MAPPING_H
	3
	4	#include <linux/kernel.h>
	5	#include <linux/types.h>
	6	#include <linux/mm.h>
	7	#include <linux/scatterlist.h>
	8	#include <linux/dma-attrs.h>
	9	#include <linux/dma-debug.h>
	10	#include <linux/io.h>
	11
	12	#define DMA_ERROR_CODE (~(dma_addr_t) 0x0)
	13
	14	extern struct dma_map_ops s390_dma_ops;
	15
	16	static inline struct dma_map_ops get_dma_ops(struct device dev)
	17	{
	18	return &s390_dma_ops;
	19	}
	20
e978948d HC	21	static inline void dma_cache_sync(struct device dev, void vaddr, size_t size,
	22	enum dma_data_direction direction)
	23	{
	24	}
828b35f6	25
828b35f6 JG	26	static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
	27	{
	28	if (!dev->dma_mask)
1c6e4b18	29	return false;
828b35f6 JG	30	return addr + size - 1 <= *dev->dma_mask;
	31	}
	32
828b35f6	33	#endif /* _ASM_S390_DMA_MAPPING_H */