1819833afSPeter Tyser /*
2819833afSPeter Tyser * (C) Copyright 2007
3c9e798d3SStelian Pop * Stelian Pop <stelian@popies.net>
4819833afSPeter Tyser * Lead Tech Design <www.leadtechdesign.com>
5819833afSPeter Tyser *
61a459660SWolfgang Denk * SPDX-License-Identifier: GPL-2.0+
7819833afSPeter Tyser */
8819833afSPeter Tyser #ifndef __ASM_ARM_DMA_MAPPING_H
9819833afSPeter Tyser #define __ASM_ARM_DMA_MAPPING_H
10819833afSPeter Tyser
11*9ff3d014SMasahiro Yamada #include <linux/dma-direction.h>
122f066935SKishon Vijay Abraham I
13*9ff3d014SMasahiro Yamada #define dma_mapping_error(x, y) 0
14819833afSPeter Tyser
dma_alloc_coherent(size_t len,unsigned long * handle)15aecbf879SKishon Vijay Abraham I static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
16819833afSPeter Tyser {
17771f74c3SKuo-Jung Su *handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
18819833afSPeter Tyser return (void *)*handle;
19819833afSPeter Tyser }
20819833afSPeter Tyser
dma_free_coherent(void * addr)212f066935SKishon Vijay Abraham I static inline void dma_free_coherent(void *addr)
222f066935SKishon Vijay Abraham I {
232f066935SKishon Vijay Abraham I free(addr);
242f066935SKishon Vijay Abraham I }
252f066935SKishon Vijay Abraham I
dma_map_single(volatile void * vaddr,size_t len,enum dma_data_direction dir)26819833afSPeter Tyser static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
27819833afSPeter Tyser enum dma_data_direction dir)
28819833afSPeter Tyser {
29819833afSPeter Tyser return (unsigned long)vaddr;
30819833afSPeter Tyser }
31819833afSPeter Tyser
dma_unmap_single(volatile void * vaddr,size_t len,unsigned long paddr)32819833afSPeter Tyser static inline void dma_unmap_single(volatile void *vaddr, size_t len,
33819833afSPeter Tyser unsigned long paddr)
34819833afSPeter Tyser {
35819833afSPeter Tyser }
36819833afSPeter Tyser
37819833afSPeter Tyser #endif /* __ASM_ARM_DMA_MAPPING_H */
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