Linux kernel mirror (for testing)
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linux
1/*
2 * Port on Texas Instruments TMS320C6x architecture
3 *
4 * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
5 * Author: Aurelien Jacquiot <aurelien.jacquiot@ti.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 */
12#ifndef _ASM_C6X_DMA_MAPPING_H
13#define _ASM_C6X_DMA_MAPPING_H
14
15/*
16 * DMA errors are defined by all-bits-set in the DMA address.
17 */
18#define DMA_ERROR_CODE ~0
19
20extern struct dma_map_ops c6x_dma_ops;
21
22static inline struct dma_map_ops *get_dma_ops(struct device *dev)
23{
24 return &c6x_dma_ops;
25}
26
27extern void coherent_mem_init(u32 start, u32 size);
28void *c6x_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
29 gfp_t gfp, struct dma_attrs *attrs);
30void c6x_dma_free(struct device *dev, size_t size, void *vaddr,
31 dma_addr_t dma_handle, struct dma_attrs *attrs);
32
33#endif /* _ASM_C6X_DMA_MAPPING_H */