[IA64] Add Variable Page Size and IA64 Support in Intel IOMMU
[linux-2.6.git] / arch / ia64 / include / asm / swiotlb.h
1 #ifndef ASM_IA64__SWIOTLB_H
2 #define ASM_IA64__SWIOTLB_H
3
4 #include <linux/dma-mapping.h>
5
6 /* SWIOTLB interface */
7
8 extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr,
9                                      size_t size, int dir);
10 extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size,
11                                     dma_addr_t *dma_handle, gfp_t flags);
12 extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
13                                  size_t size, int dir);
14 extern void swiotlb_sync_single_for_cpu(struct device *hwdev,
15                                         dma_addr_t dev_addr,
16                                         size_t size, int dir);
17 extern void swiotlb_sync_single_for_device(struct device *hwdev,
18                                            dma_addr_t dev_addr,
19                                            size_t size, int dir);
20 extern void swiotlb_sync_single_range_for_cpu(struct device *hwdev,
21                                               dma_addr_t dev_addr,
22                                               unsigned long offset,
23                                               size_t size, int dir);
24 extern void swiotlb_sync_single_range_for_device(struct device *hwdev,
25                                                  dma_addr_t dev_addr,
26                                                  unsigned long offset,
27                                                  size_t size, int dir);
28 extern void swiotlb_sync_sg_for_cpu(struct device *hwdev,
29                                     struct scatterlist *sg, int nelems,
30                                     int dir);
31 extern void swiotlb_sync_sg_for_device(struct device *hwdev,
32                                        struct scatterlist *sg, int nelems,
33                                        int dir);
34 extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg,
35                           int nents, int direction);
36 extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg,
37                              int nents, int direction);
38 extern int swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
39 extern void swiotlb_free_coherent(struct device *hwdev, size_t size,
40                                   void *vaddr, dma_addr_t dma_handle);
41 extern int swiotlb_dma_supported(struct device *hwdev, u64 mask);
42 extern void swiotlb_init(void);
43
44 extern int swiotlb_force;
45
46 #ifdef CONFIG_SWIOTLB
47 extern int swiotlb;
48 extern void pci_swiotlb_init(void);
49 #else
50 #define swiotlb 0
51 static inline void pci_swiotlb_init(void)
52 {
53 }
54 #endif
55
56 #endif /* ASM_IA64__SWIOTLB_H */