1 #ifndef _ALPHA_DMA_MAPPING_H
2 #define _ALPHA_DMA_MAPPING_H
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) \
14 __pci_alloc_consistent(alpha_gendev_to_pci(dev), size, addr, gfp)
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) \
18 pci_map_page(alpha_gendev_to_pci(dev), page, off, size, dir)
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(dev, addr) \
28 pci_dma_mapping_error(alpha_gendev_to_pci(dev), addr)
30 #else /* no PCI - no IOMMU. */
32 #include <asm/io.h> /* for virt_to_phys() */
35 void *dma_alloc_coherent(struct device *dev, size_t size,
36 dma_addr_t *dma_handle, gfp_t gfp);
37 int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
38 enum dma_data_direction direction);
40 #define dma_free_coherent(dev, size, va, addr) \
41 free_pages((unsigned long)va, get_order(size))
42 #define dma_supported(dev, mask) (mask < 0x00ffffffUL ? 0 : 1)
43 #define dma_map_single(dev, va, size, dir) virt_to_phys(va)
44 #define dma_map_page(dev, page, off, size, dir) (page_to_pa(page) + off)
46 #define dma_unmap_single(dev, addr, size, dir) ((void)0)
47 #define dma_unmap_page(dev, addr, size, dir) ((void)0)
48 #define dma_unmap_sg(dev, sg, nents, dir) ((void)0)
50 #define dma_mapping_error(dev, addr) (0)
52 #endif /* !CONFIG_PCI */
54 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
55 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
56 #define dma_is_consistent(d, h) (1)
58 int dma_set_mask(struct device *dev, u64 mask);
60 #define dma_sync_single_for_cpu(dev, addr, size, dir) ((void)0)
61 #define dma_sync_single_for_device(dev, addr, size, dir) ((void)0)
62 #define dma_sync_single_range(dev, addr, off, size, dir) ((void)0)
63 #define dma_sync_sg_for_cpu(dev, sg, nents, dir) ((void)0)
64 #define dma_sync_sg_for_device(dev, sg, nents, dir) ((void)0)
65 #define dma_cache_sync(dev, va, size, dir) ((void)0)
66 #define dma_sync_single_range_for_cpu(dev, addr, offset, size, dir) ((void)0)
67 #define dma_sync_single_range_for_device(dev, addr, offset, size, dir) ((void)0)
69 #define dma_get_cache_alignment() L1_CACHE_BYTES
71 #endif /* _ALPHA_DMA_MAPPING_H */