19f128bccSken kuo /*
29f128bccSken kuo * Copyright (C) 2013 Andes Technology Corporation
39f128bccSken kuo * Ken Kuo, Andes Technology Corporation <ken_kuo@andestech.com>
49f128bccSken kuo *
59f128bccSken kuo * SPDX-License-Identifier: GPL-2.0+
69f128bccSken kuo */
79f128bccSken kuo #ifndef __ASM_NDS_DMA_MAPPING_H
89f128bccSken kuo #define __ASM_NDS_DMA_MAPPING_H
99f128bccSken kuo
10*9ff3d014SMasahiro Yamada #include <linux/dma-direction.h>
119f128bccSken kuo
dma_alloc_coherent(size_t len,unsigned long * handle)129f128bccSken kuo static void *dma_alloc_coherent(size_t len, unsigned long *handle)
139f128bccSken kuo {
149f128bccSken kuo *handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
159f128bccSken kuo return (void *)*handle;
169f128bccSken kuo }
179f128bccSken kuo
dma_map_single(volatile void * vaddr,size_t len,enum dma_data_direction dir)189f128bccSken kuo static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
199f128bccSken kuo enum dma_data_direction dir)
209f128bccSken kuo {
219f128bccSken kuo return (unsigned long)vaddr;
229f128bccSken kuo }
239f128bccSken kuo
dma_unmap_single(volatile void * vaddr,size_t len,unsigned long paddr)249f128bccSken kuo static inline void dma_unmap_single(volatile void *vaddr, size_t len,
259f128bccSken kuo unsigned long paddr)
269f128bccSken kuo {
279f128bccSken kuo }
289f128bccSken kuo
299f128bccSken kuo #endif /* __ASM_NDS_DMA_MAPPING_H */
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