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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_DMA_MAPPING_H
3#define _ASM_DMA_MAPPING_H
4
5#include <asm/cache.h>
6#include <asm/cacheflush.h>
7
8extern unsigned long __nongprelbss dma_coherent_mem_start;
9extern unsigned long __nongprelbss dma_coherent_mem_end;
10
11extern const struct dma_map_ops frv_dma_ops;
12
13static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
14{
15 return &frv_dma_ops;
16}
17
18static inline
19void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
20 enum dma_data_direction direction)
21{
22 flush_write_buffers();
23}
24
25#endif /* _ASM_DMA_MAPPING_H */