[people/ms/u-boot.git] / arch / arm / include / asm / dma-mapping.h

/*
 * (C) Copyright 2007
 * Stelian Pop <stelian@popies.net>
 * Lead Tech Design <www.leadtechdesign.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */
#ifndef __ASM_ARM_DMA_MAPPING_H
#define __ASM_ARM_DMA_MAPPING_H

#include <linux/dma-direction.h>

#define	dma_mapping_error(x, y)	0

static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
{
	*handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
	return (void *)*handle;
}

static inline void dma_free_coherent(void *addr)
{
	free(addr);
}

static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
					   enum dma_data_direction dir)
{
	return (unsigned long)vaddr;
}

static inline void dma_unmap_single(volatile void *vaddr, size_t len,
				    unsigned long paddr)
{
}

#endif /* __ASM_ARM_DMA_MAPPING_H */
Commit	Line	Data
fa506a92 SP	1	/*
fa506a92 SP	2	* (C) Copyright 2007
c9e798d3	3	* Stelian Pop <stelian@popies.net>
fa506a92 SP	4	* Lead Tech Design <www.leadtechdesign.com>
fa506a92 SP	5	*
1a459660	6	* SPDX-License-Identifier: GPL-2.0+
fa506a92 SP	7	*/
	8	#ifndef __ASM_ARM_DMA_MAPPING_H
	9	#define __ASM_ARM_DMA_MAPPING_H
	10
b27af399	11	#include <linux/dma-direction.h>
2f066935	12
b27af399	13	#define dma_mapping_error(x, y) 0
fa506a92	14
aecbf879	15	static inline void dma_alloc_coherent(size_t len, unsigned long handle)
fa506a92	16	{
771f74c3	17	*handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
fa506a92 SP	18	return (void )handle;
	19	}
	20
2f066935 KVA	21	static inline void dma_free_coherent(void *addr)
	22	{
	23	free(addr);
	24	}
	25
fa506a92 SP	26	static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
	27	enum dma_data_direction dir)
	28	{
	29	return (unsigned long)vaddr;
	30	}
	31
	32	static inline void dma_unmap_single(volatile void *vaddr, size_t len,
	33	unsigned long paddr)
	34	{
	35	}
	36
	37	#endif /* __ASM_ARM_DMA_MAPPING_H */