[mirror_ubuntu-artful-kernel.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-debug.h>
#include <linux/io.h>

extern const struct dma_map_ops s390_pci_dma_ops;

static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
	return &dma_noop_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>
828b35f6 JG	8	#include <linux/dma-debug.h>
	9	#include <linux/io.h>
	10
5299709d	11	extern const struct dma_map_ops s390_pci_dma_ops;
828b35f6	12
815dd187	13	static inline const struct dma_map_ops get_arch_dma_ops(struct bus_type bus)
828b35f6	14	{
e82becfc	15	return &dma_noop_ops;
828b35f6 JG	16	}
828b35f6 JG	17
e978948d HC	18	static inline void dma_cache_sync(struct device dev, void vaddr, size_t size,
	19	enum dma_data_direction direction)
	20	{
	21	}
828b35f6	22
828b35f6 JG	23	static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
	24	{
	25	if (!dev->dma_mask)
1c6e4b18	26	return false;
828b35f6 JG	27	return addr + size - 1 <= *dev->dma_mask;
	28	}
	29
828b35f6	30	#endif /* _ASM_S390_DMA_MAPPING_H */