1 #ifndef _ASM_IA64_DMA_MAPPING_H
2 #define _ASM_IA64_DMA_MAPPING_H
5 * Copyright (C) 2003-2004 Hewlett-Packard Co
6 * David Mosberger-Tang <davidm@hpl.hp.com>
8 #include <asm/machvec.h>
9 #include <linux/scatterlist.h>
11 #define dma_alloc_coherent platform_dma_alloc_coherent
12 /* coherent mem. is cheap */
14 dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
17 return dma_alloc_coherent(dev, size, dma_handle, flag);
19 #define dma_free_coherent platform_dma_free_coherent
21 dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr,
22 dma_addr_t dma_handle)
24 dma_free_coherent(dev, size, cpu_addr, dma_handle);
26 #define dma_map_single platform_dma_map_single
27 #define dma_map_sg platform_dma_map_sg
28 #define dma_unmap_single platform_dma_unmap_single
29 #define dma_unmap_sg platform_dma_unmap_sg
30 #define dma_sync_single_for_cpu platform_dma_sync_single_for_cpu
31 #define dma_sync_sg_for_cpu platform_dma_sync_sg_for_cpu
32 #define dma_sync_single_for_device platform_dma_sync_single_for_device
33 #define dma_sync_sg_for_device platform_dma_sync_sg_for_device
34 #define dma_mapping_error platform_dma_mapping_error
36 #define dma_map_page(dev, pg, off, size, dir) \
37 dma_map_single(dev, page_address(pg) + (off), (size), (dir))
38 #define dma_unmap_page(dev, dma_addr, size, dir) \
39 dma_unmap_single(dev, dma_addr, size, dir)
42 * Rest of this file is part of the "Advanced DMA API". Use at your own risk.
43 * See Documentation/DMA-API.txt for details.
46 #define dma_sync_single_range_for_cpu(dev, dma_handle, offset, size, dir) \
47 dma_sync_single_for_cpu(dev, dma_handle, size, dir)
48 #define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir) \
49 dma_sync_single_for_device(dev, dma_handle, size, dir)
51 #define dma_supported platform_dma_supported
54 dma_set_mask (struct device *dev, u64 mask)
56 if (!dev->dma_mask || !dma_supported(dev, mask))
58 *dev->dma_mask = mask;
62 extern int dma_get_cache_alignment(void);
65 dma_cache_sync (struct device *dev, void *vaddr, size_t size,
66 enum dma_data_direction dir)
69 * IA-64 is cache-coherent, so this is mostly a no-op. However, we do need to
70 * ensure that dma_cache_sync() enforces order, hence the mb().
75 #define dma_is_consistent(d, h) (1) /* all we do is coherent memory... */
77 #endif /* _ASM_IA64_DMA_MAPPING_H */