1 #ifndef _ASM_IA64_DMA_MAPPING_H
2 #define _ASM_IA64_DMA_MAPPING_H
5 * Copyright (C) 2003 Hewlett-Packard Co
6 * David Mosberger-Tang <davidm@hpl.hp.com>
9 #define dma_alloc_coherent platform_dma_alloc_coherent
10 #define dma_alloc_noncoherent platform_dma_alloc_coherent /* coherent mem. is cheap */
11 #define dma_free_coherent platform_dma_free_coherent
12 #define dma_free_noncoherent platform_dma_free_coherent
13 #define dma_map_single platform_dma_map_single
14 #define dma_map_sg platform_dma_map_sg
15 #define dma_unmap_single platform_dma_unmap_single
16 #define dma_unmap_sg platform_dma_unmap_sg
17 #define dma_sync_single platform_dma_sync_single
18 #define dma_sync_sg platform_dma_sync_sg
20 #define dma_map_page(dev, pg, off, size, dir) \
21 dma_map_single(dev, page_address(pg) + (off), (size), (dir))
22 #define dma_unmap_page(dev, dma_addr, size, dir) \
23 dma_unmap_single(dev, dma_addr, size, dir)
26 * Rest of this file is part of the "Advanced DMA API". Use at your own risk.
27 * See Documentation/DMA-API.txt for details.
30 #define dma_sync_single_range(dev, dma_handle, offset, size, dir) \
31 dma_sync_single(dev, dma_handle, size, dir)
33 #define dma_supported platform_dma_supported
36 dma_set_mask (struct device *dev, u64 mask)
38 if (!dev->dma_mask || !dma_supported(dev, mask))
40 *dev->dma_mask = mask;
45 dma_get_cache_alignment (void)
47 extern int ia64_max_cacheline_size;
48 return ia64_max_cacheline_size;
52 dma_cache_sync (void *vaddr, size_t size, enum dma_data_direction dir)
55 * IA-64 is cache-coherent, so this is mostly a no-op. However, we do need to
56 * ensure that dma_cache_sync() enforces order, hence the mb().
61 #define dma_is_consistent(dma_handle) (1) /* all we do is coherent memory... */
63 #endif /* _ASM_IA64_DMA_MAPPING_H */