Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _ASM_SPARC64_DMA_MAPPING_H |
| 2 | #define _ASM_SPARC64_DMA_MAPPING_H |
| 3 | |
| 4 | #include <linux/config.h> |
| 5 | |
| 6 | #ifdef CONFIG_PCI |
David S. Miller | 42f1423 | 2006-05-23 02:07:22 -0700 | [diff] [blame^] | 7 | |
| 8 | /* we implement the API below in terms of the existing PCI one, |
| 9 | * so include it */ |
| 10 | #include <linux/pci.h> |
| 11 | /* need struct page definitions */ |
| 12 | #include <linux/mm.h> |
| 13 | |
| 14 | static inline int |
| 15 | dma_supported(struct device *dev, u64 mask) |
| 16 | { |
| 17 | BUG_ON(dev->bus != &pci_bus_type); |
| 18 | |
| 19 | return pci_dma_supported(to_pci_dev(dev), mask); |
| 20 | } |
| 21 | |
| 22 | static inline int |
| 23 | dma_set_mask(struct device *dev, u64 dma_mask) |
| 24 | { |
| 25 | BUG_ON(dev->bus != &pci_bus_type); |
| 26 | |
| 27 | return pci_set_dma_mask(to_pci_dev(dev), dma_mask); |
| 28 | } |
| 29 | |
| 30 | static inline void * |
| 31 | dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, |
| 32 | gfp_t flag) |
| 33 | { |
| 34 | BUG_ON(dev->bus != &pci_bus_type); |
| 35 | |
| 36 | return pci_iommu_ops->alloc_consistent(to_pci_dev(dev), size, dma_handle, flag); |
| 37 | } |
| 38 | |
| 39 | static inline void |
| 40 | dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, |
| 41 | dma_addr_t dma_handle) |
| 42 | { |
| 43 | BUG_ON(dev->bus != &pci_bus_type); |
| 44 | |
| 45 | pci_free_consistent(to_pci_dev(dev), size, cpu_addr, dma_handle); |
| 46 | } |
| 47 | |
| 48 | static inline dma_addr_t |
| 49 | dma_map_single(struct device *dev, void *cpu_addr, size_t size, |
| 50 | enum dma_data_direction direction) |
| 51 | { |
| 52 | BUG_ON(dev->bus != &pci_bus_type); |
| 53 | |
| 54 | return pci_map_single(to_pci_dev(dev), cpu_addr, size, (int)direction); |
| 55 | } |
| 56 | |
| 57 | static inline void |
| 58 | dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, |
| 59 | enum dma_data_direction direction) |
| 60 | { |
| 61 | BUG_ON(dev->bus != &pci_bus_type); |
| 62 | |
| 63 | pci_unmap_single(to_pci_dev(dev), dma_addr, size, (int)direction); |
| 64 | } |
| 65 | |
| 66 | static inline dma_addr_t |
| 67 | dma_map_page(struct device *dev, struct page *page, |
| 68 | unsigned long offset, size_t size, |
| 69 | enum dma_data_direction direction) |
| 70 | { |
| 71 | BUG_ON(dev->bus != &pci_bus_type); |
| 72 | |
| 73 | return pci_map_page(to_pci_dev(dev), page, offset, size, (int)direction); |
| 74 | } |
| 75 | |
| 76 | static inline void |
| 77 | dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size, |
| 78 | enum dma_data_direction direction) |
| 79 | { |
| 80 | BUG_ON(dev->bus != &pci_bus_type); |
| 81 | |
| 82 | pci_unmap_page(to_pci_dev(dev), dma_address, size, (int)direction); |
| 83 | } |
| 84 | |
| 85 | static inline int |
| 86 | dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, |
| 87 | enum dma_data_direction direction) |
| 88 | { |
| 89 | BUG_ON(dev->bus != &pci_bus_type); |
| 90 | |
| 91 | return pci_map_sg(to_pci_dev(dev), sg, nents, (int)direction); |
| 92 | } |
| 93 | |
| 94 | static inline void |
| 95 | dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries, |
| 96 | enum dma_data_direction direction) |
| 97 | { |
| 98 | BUG_ON(dev->bus != &pci_bus_type); |
| 99 | |
| 100 | pci_unmap_sg(to_pci_dev(dev), sg, nhwentries, (int)direction); |
| 101 | } |
| 102 | |
| 103 | static inline void |
| 104 | dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, |
| 105 | enum dma_data_direction direction) |
| 106 | { |
| 107 | BUG_ON(dev->bus != &pci_bus_type); |
| 108 | |
| 109 | pci_dma_sync_single_for_cpu(to_pci_dev(dev), dma_handle, |
| 110 | size, (int)direction); |
| 111 | } |
| 112 | |
| 113 | static inline void |
| 114 | dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size, |
| 115 | enum dma_data_direction direction) |
| 116 | { |
| 117 | BUG_ON(dev->bus != &pci_bus_type); |
| 118 | |
| 119 | pci_dma_sync_single_for_device(to_pci_dev(dev), dma_handle, |
| 120 | size, (int)direction); |
| 121 | } |
| 122 | |
| 123 | static inline void |
| 124 | dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, |
| 125 | enum dma_data_direction direction) |
| 126 | { |
| 127 | BUG_ON(dev->bus != &pci_bus_type); |
| 128 | |
| 129 | pci_dma_sync_sg_for_cpu(to_pci_dev(dev), sg, nelems, (int)direction); |
| 130 | } |
| 131 | |
| 132 | static inline void |
| 133 | dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems, |
| 134 | enum dma_data_direction direction) |
| 135 | { |
| 136 | BUG_ON(dev->bus != &pci_bus_type); |
| 137 | |
| 138 | pci_dma_sync_sg_for_device(to_pci_dev(dev), sg, nelems, (int)direction); |
| 139 | } |
| 140 | |
| 141 | static inline int |
| 142 | dma_mapping_error(dma_addr_t dma_addr) |
| 143 | { |
| 144 | return pci_dma_mapping_error(dma_addr); |
| 145 | } |
| 146 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | #else |
| 148 | |
| 149 | struct device; |
| 150 | |
| 151 | static inline void *dma_alloc_coherent(struct device *dev, size_t size, |
Al Viro | 970a9e7 | 2005-10-21 03:21:53 -0400 | [diff] [blame] | 152 | dma_addr_t *dma_handle, gfp_t flag) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | { |
| 154 | BUG(); |
| 155 | return NULL; |
| 156 | } |
| 157 | |
| 158 | static inline void dma_free_coherent(struct device *dev, size_t size, |
| 159 | void *vaddr, dma_addr_t dma_handle) |
| 160 | { |
| 161 | BUG(); |
| 162 | } |
| 163 | |
| 164 | #endif /* PCI */ |
| 165 | |
| 166 | #endif /* _ASM_SPARC64_DMA_MAPPING_H */ |