tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _ALPHA_DMA_MAPPING_H
2#define _ALPHA_DMA_MAPPING_H
3
4#include <linux/dma-attrs.h>
5
6extern struct dma_map_ops *dma_ops;
7
8static inline struct dma_map_ops *get_dma_ops(struct device *dev)
9{
10 return dma_ops;
11}
12
13#include <asm-generic/dma-mapping-common.h>
14
15static inline void *dma_alloc_coherent(struct device *dev, size_t size,
16 dma_addr_t *dma_handle, gfp_t gfp)
17{
18 return get_dma_ops(dev)->alloc_coherent(dev, size, dma_handle, gfp);
19}
20
21static inline void dma_free_coherent(struct device *dev, size_t size,
22 void *vaddr, dma_addr_t dma_handle)
23{
24 get_dma_ops(dev)->free_coherent(dev, size, vaddr, dma_handle);
25}
26
27static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
28{
29 return get_dma_ops(dev)->mapping_error(dev, dma_addr);
30}
31
32static inline int dma_supported(struct device *dev, u64 mask)
33{
34 return get_dma_ops(dev)->dma_supported(dev, mask);
35}
36
37static inline int dma_set_mask(struct device *dev, u64 mask)
38{
39 return get_dma_ops(dev)->set_dma_mask(dev, mask);
40}
41
42#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
43#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
44
45#define dma_cache_sync(dev, va, size, dir) ((void)0)
46
47#endif /* _ALPHA_DMA_MAPPING_H */