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1da177e4 LT |
1 | #ifndef _ALPHA_DMA_MAPPING_H |
2 | #define _ALPHA_DMA_MAPPING_H | |
3 | ||
1da177e4 LT |
4 | |
5 | #ifdef CONFIG_PCI | |
6 | ||
7 | #include <linux/pci.h> | |
8 | ||
9 | #define dma_map_single(dev, va, size, dir) \ | |
10 | pci_map_single(alpha_gendev_to_pci(dev), va, size, dir) | |
11 | #define dma_unmap_single(dev, addr, size, dir) \ | |
12 | pci_unmap_single(alpha_gendev_to_pci(dev), addr, size, dir) | |
13 | #define dma_alloc_coherent(dev, size, addr, gfp) \ | |
c143d43a | 14 | __pci_alloc_consistent(alpha_gendev_to_pci(dev), size, addr, gfp) |
1da177e4 LT |
15 | #define dma_free_coherent(dev, size, va, addr) \ |
16 | pci_free_consistent(alpha_gendev_to_pci(dev), size, va, addr) | |
17 | #define dma_map_page(dev, page, off, size, dir) \ | |
817c41d7 | 18 | pci_map_page(alpha_gendev_to_pci(dev), page, off, size, dir) |
1da177e4 LT |
19 | #define dma_unmap_page(dev, addr, size, dir) \ |
20 | pci_unmap_page(alpha_gendev_to_pci(dev), addr, size, dir) | |
21 | #define dma_map_sg(dev, sg, nents, dir) \ | |
22 | pci_map_sg(alpha_gendev_to_pci(dev), sg, nents, dir) | |
23 | #define dma_unmap_sg(dev, sg, nents, dir) \ | |
24 | pci_unmap_sg(alpha_gendev_to_pci(dev), sg, nents, dir) | |
25 | #define dma_supported(dev, mask) \ | |
26 | pci_dma_supported(alpha_gendev_to_pci(dev), mask) | |
27 | #define dma_mapping_error(addr) \ | |
28 | pci_dma_mapping_error(addr) | |
29 | ||
30 | #else /* no PCI - no IOMMU. */ | |
31 | ||
ce5f8d70 | 32 | struct scatterlist; |
1da177e4 | 33 | void *dma_alloc_coherent(struct device *dev, size_t size, |
55c5d74b | 34 | dma_addr_t *dma_handle, gfp_t gfp); |
1da177e4 LT |
35 | int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, |
36 | enum dma_data_direction direction); | |
37 | ||
38 | #define dma_free_coherent(dev, size, va, addr) \ | |
39 | free_pages((unsigned long)va, get_order(size)) | |
40 | #define dma_supported(dev, mask) (mask < 0x00ffffffUL ? 0 : 1) | |
41 | #define dma_map_single(dev, va, size, dir) virt_to_phys(va) | |
42 | #define dma_map_page(dev, page, off, size, dir) (page_to_pa(page) + off) | |
43 | ||
6a13f660 AV |
44 | #define dma_unmap_single(dev, addr, size, dir) ((void)0) |
45 | #define dma_unmap_page(dev, addr, size, dir) ((void)0) | |
46 | #define dma_unmap_sg(dev, sg, nents, dir) ((void)0) | |
1da177e4 LT |
47 | |
48 | #define dma_mapping_error(addr) (0) | |
49 | ||
50 | #endif /* !CONFIG_PCI */ | |
51 | ||
52 | #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) | |
53 | #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) | |
f67637ee | 54 | #define dma_is_consistent(d, h) (1) |
1da177e4 LT |
55 | |
56 | int dma_set_mask(struct device *dev, u64 mask); | |
57 | ||
d0a23398 AV |
58 | #define dma_sync_single_for_cpu(dev, addr, size, dir) ((void)0) |
59 | #define dma_sync_single_for_device(dev, addr, size, dir) ((void)0) | |
60 | #define dma_sync_single_range(dev, addr, off, size, dir) ((void)0) | |
61 | #define dma_sync_sg_for_cpu(dev, sg, nents, dir) ((void)0) | |
62 | #define dma_sync_sg_for_device(dev, sg, nents, dir) ((void)0) | |
63 | #define dma_cache_sync(dev, va, size, dir) ((void)0) | |
64 | #define dma_sync_single_range_for_cpu(dev, addr, offset, size, dir) ((void)0) | |
65 | #define dma_sync_single_range_for_device(dev, addr, offset, size, dir) ((void)0) | |
1da177e4 LT |
66 | |
67 | #define dma_get_cache_alignment() L1_CACHE_BYTES | |
68 | ||
69 | #endif /* _ALPHA_DMA_MAPPING_H */ |