aboutsummaryrefslogtreecommitdiffstats
path: root/arch/ia64/include/asm/dma-mapping.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ia64/include/asm/dma-mapping.h')
-rw-r--r--arch/ia64/include/asm/dma-mapping.h194
1 files changed, 110 insertions, 84 deletions
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index 1f912d927585..36c0009dbece 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -11,99 +11,128 @@
11 11
12#define ARCH_HAS_DMA_GET_REQUIRED_MASK 12#define ARCH_HAS_DMA_GET_REQUIRED_MASK
13 13
14struct dma_mapping_ops { 14extern struct dma_map_ops *dma_ops;
15 int (*mapping_error)(struct device *dev,
16 dma_addr_t dma_addr);
17 void* (*alloc_coherent)(struct device *dev, size_t size,
18 dma_addr_t *dma_handle, gfp_t gfp);
19 void (*free_coherent)(struct device *dev, size_t size,
20 void *vaddr, dma_addr_t dma_handle);
21 dma_addr_t (*map_single)(struct device *hwdev, unsigned long ptr,
22 size_t size, int direction);
23 void (*unmap_single)(struct device *dev, dma_addr_t addr,
24 size_t size, int direction);
25 void (*sync_single_for_cpu)(struct device *hwdev,
26 dma_addr_t dma_handle, size_t size,
27 int direction);
28 void (*sync_single_for_device)(struct device *hwdev,
29 dma_addr_t dma_handle, size_t size,
30 int direction);
31 void (*sync_single_range_for_cpu)(struct device *hwdev,
32 dma_addr_t dma_handle, unsigned long offset,
33 size_t size, int direction);
34 void (*sync_single_range_for_device)(struct device *hwdev,
35 dma_addr_t dma_handle, unsigned long offset,
36 size_t size, int direction);
37 void (*sync_sg_for_cpu)(struct device *hwdev,
38 struct scatterlist *sg, int nelems,
39 int direction);
40 void (*sync_sg_for_device)(struct device *hwdev,
41 struct scatterlist *sg, int nelems,
42 int direction);
43 int (*map_sg)(struct device *hwdev, struct scatterlist *sg,
44 int nents, int direction);
45 void (*unmap_sg)(struct device *hwdev,
46 struct scatterlist *sg, int nents,
47 int direction);
48 int (*dma_supported_op)(struct device *hwdev, u64 mask);
49 int is_phys;
50};
51
52extern struct dma_mapping_ops *dma_ops;
53extern struct ia64_machine_vector ia64_mv; 15extern struct ia64_machine_vector ia64_mv;
54extern void set_iommu_machvec(void); 16extern void set_iommu_machvec(void);
55 17
56#define dma_alloc_coherent(dev, size, handle, gfp) \ 18extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
57 platform_dma_alloc_coherent(dev, size, handle, (gfp) | GFP_DMA) 19 enum dma_data_direction);
20extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
21 enum dma_data_direction);
58 22
59/* coherent mem. is cheap */ 23static inline void *dma_alloc_coherent(struct device *dev, size_t size,
60static inline void * 24 dma_addr_t *daddr, gfp_t gfp)
61dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
62 gfp_t flag)
63{ 25{
64 return dma_alloc_coherent(dev, size, dma_handle, flag); 26 struct dma_map_ops *ops = platform_dma_get_ops(dev);
27 return ops->alloc_coherent(dev, size, daddr, gfp);
65} 28}
66#define dma_free_coherent platform_dma_free_coherent 29
67static inline void 30static inline void dma_free_coherent(struct device *dev, size_t size,
68dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr, 31 void *caddr, dma_addr_t daddr)
69 dma_addr_t dma_handle) 32{
33 struct dma_map_ops *ops = platform_dma_get_ops(dev);
34 ops->free_coherent(dev, size, caddr, daddr);
35}
36
37#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
38#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
39
40static inline dma_addr_t dma_map_single_attrs(struct device *dev,
41 void *caddr, size_t size,
42 enum dma_data_direction dir,
43 struct dma_attrs *attrs)
44{
45 struct dma_map_ops *ops = platform_dma_get_ops(dev);
46 return ops->map_page(dev, virt_to_page(caddr),
47 (unsigned long)caddr & ~PAGE_MASK, size,
48 dir, attrs);
49}
50
51static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t daddr,
52 size_t size,
53 enum dma_data_direction dir,
54 struct dma_attrs *attrs)
55{
56 struct dma_map_ops *ops = platform_dma_get_ops(dev);
57 ops->unmap_page(dev, daddr, size, dir, attrs);
58}
59
60#define dma_map_single(d, a, s, r) dma_map_single_attrs(d, a, s, r, NULL)
61#define dma_unmap_single(d, a, s, r) dma_unmap_single_attrs(d, a, s, r, NULL)
62
63static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
64 int nents, enum dma_data_direction dir,
65 struct dma_attrs *attrs)
66{
67 struct dma_map_ops *ops = platform_dma_get_ops(dev);
68 return ops->map_sg(dev, sgl, nents, dir, attrs);
69}
70
71static inline void dma_unmap_sg_attrs(struct device *dev,
72 struct scatterlist *sgl, int nents,
73 enum dma_data_direction dir,
74 struct dma_attrs *attrs)
75{
76 struct dma_map_ops *ops = platform_dma_get_ops(dev);
77 ops->unmap_sg(dev, sgl, nents, dir, attrs);
78}
79
80#define dma_map_sg(d, s, n, r) dma_map_sg_attrs(d, s, n, r, NULL)
81#define dma_unmap_sg(d, s, n, r) dma_unmap_sg_attrs(d, s, n, r, NULL)
82
83static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t daddr,
84 size_t size,
85 enum dma_data_direction dir)
70{ 86{
71 dma_free_coherent(dev, size, cpu_addr, dma_handle); 87 struct dma_map_ops *ops = platform_dma_get_ops(dev);
88 ops->sync_single_for_cpu(dev, daddr, size, dir);
72} 89}
73#define dma_map_single_attrs platform_dma_map_single_attrs 90
74static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, 91static inline void dma_sync_sg_for_cpu(struct device *dev,
75 size_t size, int dir) 92 struct scatterlist *sgl,
93 int nents, enum dma_data_direction dir)
76{ 94{
77 return dma_map_single_attrs(dev, cpu_addr, size, dir, NULL); 95 struct dma_map_ops *ops = platform_dma_get_ops(dev);
96 ops->sync_sg_for_cpu(dev, sgl, nents, dir);
78} 97}
79#define dma_map_sg_attrs platform_dma_map_sg_attrs 98
80static inline int dma_map_sg(struct device *dev, struct scatterlist *sgl, 99static inline void dma_sync_single_for_device(struct device *dev,
81 int nents, int dir) 100 dma_addr_t daddr,
101 size_t size,
102 enum dma_data_direction dir)
82{ 103{
83 return dma_map_sg_attrs(dev, sgl, nents, dir, NULL); 104 struct dma_map_ops *ops = platform_dma_get_ops(dev);
105 ops->sync_single_for_device(dev, daddr, size, dir);
84} 106}
85#define dma_unmap_single_attrs platform_dma_unmap_single_attrs 107
86static inline void dma_unmap_single(struct device *dev, dma_addr_t cpu_addr, 108static inline void dma_sync_sg_for_device(struct device *dev,
87 size_t size, int dir) 109 struct scatterlist *sgl,
110 int nents,
111 enum dma_data_direction dir)
88{ 112{
89 return dma_unmap_single_attrs(dev, cpu_addr, size, dir, NULL); 113 struct dma_map_ops *ops = platform_dma_get_ops(dev);
114 ops->sync_sg_for_device(dev, sgl, nents, dir);
90} 115}
91#define dma_unmap_sg_attrs platform_dma_unmap_sg_attrs 116
92static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sgl, 117static inline int dma_mapping_error(struct device *dev, dma_addr_t daddr)
93 int nents, int dir) 118{
119 struct dma_map_ops *ops = platform_dma_get_ops(dev);
120 return ops->mapping_error(dev, daddr);
121}
122
123static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
124 size_t offset, size_t size,
125 enum dma_data_direction dir)
94{ 126{
95 return dma_unmap_sg_attrs(dev, sgl, nents, dir, NULL); 127 struct dma_map_ops *ops = platform_dma_get_ops(dev);
128 return ops->map_page(dev, page, offset, size, dir, NULL);
96} 129}
97#define dma_sync_single_for_cpu platform_dma_sync_single_for_cpu
98#define dma_sync_sg_for_cpu platform_dma_sync_sg_for_cpu
99#define dma_sync_single_for_device platform_dma_sync_single_for_device
100#define dma_sync_sg_for_device platform_dma_sync_sg_for_device
101#define dma_mapping_error platform_dma_mapping_error
102 130
103#define dma_map_page(dev, pg, off, size, dir) \ 131static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
104 dma_map_single(dev, page_address(pg) + (off), (size), (dir)) 132 size_t size, enum dma_data_direction dir)
105#define dma_unmap_page(dev, dma_addr, size, dir) \ 133{
106 dma_unmap_single(dev, dma_addr, size, dir) 134 dma_unmap_single(dev, addr, size, dir);
135}
107 136
108/* 137/*
109 * Rest of this file is part of the "Advanced DMA API". Use at your own risk. 138 * Rest of this file is part of the "Advanced DMA API". Use at your own risk.
@@ -115,7 +144,11 @@ static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
115#define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir) \ 144#define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir) \
116 dma_sync_single_for_device(dev, dma_handle, size, dir) 145 dma_sync_single_for_device(dev, dma_handle, size, dir)
117 146
118#define dma_supported platform_dma_supported 147static inline int dma_supported(struct device *dev, u64 mask)
148{
149 struct dma_map_ops *ops = platform_dma_get_ops(dev);
150 return ops->dma_supported(dev, mask);
151}
119 152
120static inline int 153static inline int
121dma_set_mask (struct device *dev, u64 mask) 154dma_set_mask (struct device *dev, u64 mask)
@@ -141,11 +174,4 @@ dma_cache_sync (struct device *dev, void *vaddr, size_t size,
141 174
142#define dma_is_consistent(d, h) (1) /* all we do is coherent memory... */ 175#define dma_is_consistent(d, h) (1) /* all we do is coherent memory... */
143 176
144static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
145{
146 return dma_ops;
147}
148
149
150
151#endif /* _ASM_IA64_DMA_MAPPING_H */ 177#endif /* _ASM_IA64_DMA_MAPPING_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-21 12:17:23 -0500