1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org>
7 *
8 *
9 * Similar to mach-generic/dma-coherence.h except
10 * plat_device_is_coherent hard coded to return 1.
11 *
12 */
13 #ifndef __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H
14 #define __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H
15
16 #include <linux/bug.h>
17
18 struct device;
19
20 extern void octeon_pci_dma_init(void);
21
plat_map_dma_mem(struct device * dev,void * addr,size_t size)22 static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
23 size_t size)
24 {
25 BUG();
26 return 0;
27 }
28
plat_map_dma_mem_page(struct device * dev,struct page * page)29 static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
30 struct page *page)
31 {
32 BUG();
33 return 0;
34 }
35
plat_dma_addr_to_phys(struct device * dev,dma_addr_t dma_addr)36 static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
37 dma_addr_t dma_addr)
38 {
39 BUG();
40 return 0;
41 }
42
plat_unmap_dma_mem(struct device * dev,dma_addr_t dma_addr,size_t size,enum dma_data_direction direction)43 static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr,
44 size_t size, enum dma_data_direction direction)
45 {
46 BUG();
47 }
48
plat_dma_supported(struct device * dev,u64 mask)49 static inline int plat_dma_supported(struct device *dev, u64 mask)
50 {
51 BUG();
52 return 0;
53 }
54
plat_device_is_coherent(struct device * dev)55 static inline int plat_device_is_coherent(struct device *dev)
56 {
57 return 1;
58 }
59
plat_post_dma_flush(struct device * dev)60 static inline void plat_post_dma_flush(struct device *dev)
61 {
62 }
63
64 dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
65 phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
66
67 struct dma_map_ops;
68 extern struct dma_map_ops *octeon_pci_dma_map_ops;
69 extern char *octeon_swiotlb;
70
71 #endif /* __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H */
72