Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _ASM_IA64_DMA_MAPPING_H |
| 2 | #define _ASM_IA64_DMA_MAPPING_H |
| 3 | |
| 4 | /* |
| 5 | * Copyright (C) 2003-2004 Hewlett-Packard Co |
| 6 | * David Mosberger-Tang <davidm@hpl.hp.com> |
| 7 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | #include <asm/machvec.h> |
Jens Axboe | 9b6eccf | 2007-10-16 11:27:26 +0200 | [diff] [blame] | 9 | #include <linux/scatterlist.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | |
| 11 | #define dma_alloc_coherent platform_dma_alloc_coherent |
Roland Dreier | b7de8e7 | 2007-02-14 00:32:53 -0800 | [diff] [blame] | 12 | /* coherent mem. is cheap */ |
| 13 | static inline void * |
| 14 | dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *dma_handle, |
| 15 | gfp_t flag) |
| 16 | { |
| 17 | return dma_alloc_coherent(dev, size, dma_handle, flag); |
| 18 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #define dma_free_coherent platform_dma_free_coherent |
Roland Dreier | b7de8e7 | 2007-02-14 00:32:53 -0800 | [diff] [blame] | 20 | static inline void |
| 21 | dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr, |
| 22 | dma_addr_t dma_handle) |
| 23 | { |
| 24 | dma_free_coherent(dev, size, cpu_addr, dma_handle); |
| 25 | } |
Arthur Kepner | 309df0c | 2008-04-29 01:00:32 -0700 | [diff] [blame] | 26 | #define dma_map_single_attrs platform_dma_map_single_attrs |
| 27 | static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, |
| 28 | size_t size, int dir) |
| 29 | { |
| 30 | return dma_map_single_attrs(dev, cpu_addr, size, dir, NULL); |
| 31 | } |
| 32 | #define dma_map_sg_attrs platform_dma_map_sg_attrs |
| 33 | static inline int dma_map_sg(struct device *dev, struct scatterlist *sgl, |
| 34 | int nents, int dir) |
| 35 | { |
| 36 | return dma_map_sg_attrs(dev, sgl, nents, dir, NULL); |
| 37 | } |
| 38 | #define dma_unmap_single_attrs platform_dma_unmap_single_attrs |
| 39 | static inline void dma_unmap_single(struct device *dev, dma_addr_t cpu_addr, |
| 40 | size_t size, int dir) |
| 41 | { |
| 42 | return dma_unmap_single_attrs(dev, cpu_addr, size, dir, NULL); |
| 43 | } |
| 44 | #define dma_unmap_sg_attrs platform_dma_unmap_sg_attrs |
| 45 | static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sgl, |
| 46 | int nents, int dir) |
| 47 | { |
| 48 | return dma_unmap_sg_attrs(dev, sgl, nents, dir, NULL); |
| 49 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | #define dma_sync_single_for_cpu platform_dma_sync_single_for_cpu |
| 51 | #define dma_sync_sg_for_cpu platform_dma_sync_sg_for_cpu |
| 52 | #define dma_sync_single_for_device platform_dma_sync_single_for_device |
| 53 | #define dma_sync_sg_for_device platform_dma_sync_sg_for_device |
| 54 | #define dma_mapping_error platform_dma_mapping_error |
| 55 | |
| 56 | #define dma_map_page(dev, pg, off, size, dir) \ |
| 57 | dma_map_single(dev, page_address(pg) + (off), (size), (dir)) |
| 58 | #define dma_unmap_page(dev, dma_addr, size, dir) \ |
| 59 | dma_unmap_single(dev, dma_addr, size, dir) |
| 60 | |
| 61 | /* |
| 62 | * Rest of this file is part of the "Advanced DMA API". Use at your own risk. |
| 63 | * See Documentation/DMA-API.txt for details. |
| 64 | */ |
| 65 | |
| 66 | #define dma_sync_single_range_for_cpu(dev, dma_handle, offset, size, dir) \ |
| 67 | dma_sync_single_for_cpu(dev, dma_handle, size, dir) |
| 68 | #define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir) \ |
| 69 | dma_sync_single_for_device(dev, dma_handle, size, dir) |
| 70 | |
| 71 | #define dma_supported platform_dma_supported |
| 72 | |
| 73 | static inline int |
| 74 | dma_set_mask (struct device *dev, u64 mask) |
| 75 | { |
| 76 | if (!dev->dma_mask || !dma_supported(dev, mask)) |
| 77 | return -EIO; |
| 78 | *dev->dma_mask = mask; |
| 79 | return 0; |
| 80 | } |
| 81 | |
John W. Linville | e1531b4 | 2005-11-07 00:57:54 -0800 | [diff] [blame] | 82 | extern int dma_get_cache_alignment(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | |
| 84 | static inline void |
Ralf Baechle | d3fa72e | 2006-12-06 20:38:56 -0800 | [diff] [blame] | 85 | dma_cache_sync (struct device *dev, void *vaddr, size_t size, |
| 86 | enum dma_data_direction dir) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | { |
| 88 | /* |
| 89 | * IA-64 is cache-coherent, so this is mostly a no-op. However, we do need to |
| 90 | * ensure that dma_cache_sync() enforces order, hence the mb(). |
| 91 | */ |
| 92 | mb(); |
| 93 | } |
| 94 | |
Ralf Baechle | f67637e | 2006-12-06 20:38:54 -0800 | [diff] [blame] | 95 | #define dma_is_consistent(d, h) (1) /* all we do is coherent memory... */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | |
| 97 | #endif /* _ASM_IA64_DMA_MAPPING_H */ |