[mirror_ubuntu-focal-kernel.git] / arch / nios2 / include / asm / dma-mapping.h

/*
 * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
 * Copyright (C) 2009 Wind River Systems Inc
 *
 * This file is subject to the terms and conditions of the GNU General
 * Public License.  See the file COPYING in the main directory of this
 * archive for more details.
 */

#ifndef _ASM_NIOS2_DMA_MAPPING_H
#define _ASM_NIOS2_DMA_MAPPING_H

extern const struct dma_map_ops nios2_dma_ops;

static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
	return &nios2_dma_ops;
}

/*
 * dma_alloc_attrs() always returns non-cacheable memory, so there's no need to
 * do any flushing here.
 */
static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
				  enum dma_data_direction direction)
{
}

#endif /* _ASM_NIOS2_DMA_MAPPING_H */
Commit	Line	Data
e23c621f LFT	1	/*
	2	* Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
	3	* Copyright (C) 2009 Wind River Systems Inc
	4	*
	5	* This file is subject to the terms and conditions of the GNU General
	6	* Public License. See the file COPYING in the main directory of this
	7	* archive for more details.
	8	*/
	9
	10	#ifndef _ASM_NIOS2_DMA_MAPPING_H
	11	#define _ASM_NIOS2_DMA_MAPPING_H
	12
5299709d	13	extern const struct dma_map_ops nios2_dma_ops;
e23c621f	14
815dd187	15	static inline const struct dma_map_ops get_arch_dma_ops(struct bus_type bus)
e23c621f	16	{
5a1a67f1	17	return &nios2_dma_ops;
e23c621f LFT	18	}
	19
	20	/*
2fd523c5	21	* dma_alloc_attrs() always returns non-cacheable memory, so there's no need to
5a1a67f1 CH	22	* do any flushing here.
5a1a67f1 CH	23	*/
e23c621f LFT	24	static inline void dma_cache_sync(struct device dev, void vaddr, size_t size,
	25	enum dma_data_direction direction)
	26	{
	27	}
	28
e23c621f	29	#endif /* _ASM_NIOS2_DMA_MAPPING_H */