blob: 66c9ba261e30b694713bc7861bba33ef5ee356b6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2003 - 2005 Tensilica Inc.
* Copyright (C) 2015 Cadence Design Systems Inc.
*/
#ifndef _XTENSA_DMA_MAPPING_H
#define _XTENSA_DMA_MAPPING_H
#include <asm/cache.h>
#include <asm/io.h>
#include <asm-generic/dma-coherent.h>
#include <linux/mm.h>
#include <linux/scatterlist.h>
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
extern struct dma_map_ops xtensa_dma_map_ops;
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
else
return &xtensa_dma_map_ops;
}
#include <asm-generic/dma-mapping-common.h>
void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction);
static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
return (dma_addr_t)paddr;
}
static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
{
return (phys_addr_t)daddr;
}
#endif /* _XTENSA_DMA_MAPPING_H */
|
