1
2 #ifndef _MACHINE_BUS_DMA_H_
3 #define _MACHINE_BUS_DMA_H_
4
5 #define WANT_INLINE_DMAMAP
6 #include <sys/bus_dma.h>
7
8 #include <machine/bus_dma_impl.h>
9
10 /*
11 * Is DMA address 1:1 mapping of physical address
12 */
13 static inline bool
bus_dma_id_mapped(bus_dma_tag_t dmat,vm_paddr_t buf,bus_size_t buflen)14 bus_dma_id_mapped(bus_dma_tag_t dmat, vm_paddr_t buf, bus_size_t buflen)
15 {
16 struct bus_dma_tag_common *tc;
17
18 tc = (struct bus_dma_tag_common *)dmat;
19 return (tc->impl->id_mapped(dmat, buf, buflen));
20 }
21
22 /*
23 * Allocate a handle for mapping from kva/uva/physical
24 * address space into bus device space.
25 */
26 static inline int
bus_dmamap_create(bus_dma_tag_t dmat,int flags,bus_dmamap_t * mapp)27 bus_dmamap_create(bus_dma_tag_t dmat, int flags, bus_dmamap_t *mapp)
28 {
29 struct bus_dma_tag_common *tc;
30
31 tc = (struct bus_dma_tag_common *)dmat;
32 return (tc->impl->map_create(dmat, flags, mapp));
33 }
34
35 /*
36 * Destroy a handle for mapping from kva/uva/physical
37 * address space into bus device space.
38 */
39 static inline int
bus_dmamap_destroy(bus_dma_tag_t dmat,bus_dmamap_t map)40 bus_dmamap_destroy(bus_dma_tag_t dmat, bus_dmamap_t map)
41 {
42 struct bus_dma_tag_common *tc;
43
44 tc = (struct bus_dma_tag_common *)dmat;
45 return (tc->impl->map_destroy(dmat, map));
46 }
47
48 /*
49 * Allocate a piece of memory that can be efficiently mapped into
50 * bus device space based on the constraints listed in the dma tag.
51 * A dmamap to for use with dmamap_load is also allocated.
52 */
53 static inline int
bus_dmamem_alloc(bus_dma_tag_t dmat,void ** vaddr,int flags,bus_dmamap_t * mapp)54 bus_dmamem_alloc(bus_dma_tag_t dmat, void** vaddr, int flags,
55 bus_dmamap_t *mapp)
56 {
57 struct bus_dma_tag_common *tc;
58
59 tc = (struct bus_dma_tag_common *)dmat;
60 return (tc->impl->mem_alloc(dmat, vaddr, flags, mapp));
61 }
62
63 /*
64 * Free a piece of memory and it's allociated dmamap, that was allocated
65 * via bus_dmamem_alloc.
66 */
67 static inline void
bus_dmamem_free(bus_dma_tag_t dmat,void * vaddr,bus_dmamap_t map)68 bus_dmamem_free(bus_dma_tag_t dmat, void *vaddr, bus_dmamap_t map)
69 {
70 struct bus_dma_tag_common *tc;
71
72 tc = (struct bus_dma_tag_common *)dmat;
73 tc->impl->mem_free(dmat, vaddr, map);
74 }
75
76 /*
77 * Release the mapping held by map.
78 */
79 static inline void
bus_dmamap_unload(bus_dma_tag_t dmat,bus_dmamap_t map)80 bus_dmamap_unload(bus_dma_tag_t dmat, bus_dmamap_t map)
81 {
82 struct bus_dma_tag_common *tc;
83
84 tc = (struct bus_dma_tag_common *)dmat;
85 tc->impl->map_unload(dmat, map);
86 }
87
88 static inline void
bus_dmamap_sync(bus_dma_tag_t dmat,bus_dmamap_t map,bus_dmasync_op_t op)89 bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, bus_dmasync_op_t op)
90 {
91 struct bus_dma_tag_common *tc;
92
93 tc = (struct bus_dma_tag_common *)dmat;
94 tc->impl->map_sync(dmat, map, op);
95 }
96
97 static inline int
_bus_dmamap_load_phys(bus_dma_tag_t dmat,bus_dmamap_t map,vm_paddr_t buf,bus_size_t buflen,int flags,bus_dma_segment_t * segs,int * segp)98 _bus_dmamap_load_phys(bus_dma_tag_t dmat, bus_dmamap_t map, vm_paddr_t buf,
99 bus_size_t buflen, int flags, bus_dma_segment_t *segs, int *segp)
100 {
101 struct bus_dma_tag_common *tc;
102
103 tc = (struct bus_dma_tag_common *)dmat;
104 return (tc->impl->load_phys(dmat, map, buf, buflen, flags, segs,
105 segp));
106 }
107
108 static inline int
_bus_dmamap_load_ma(bus_dma_tag_t dmat,bus_dmamap_t map,struct vm_page ** ma,bus_size_t tlen,int ma_offs,int flags,bus_dma_segment_t * segs,int * segp)109 _bus_dmamap_load_ma(bus_dma_tag_t dmat, bus_dmamap_t map, struct vm_page **ma,
110 bus_size_t tlen, int ma_offs, int flags, bus_dma_segment_t *segs,
111 int *segp)
112 {
113 struct bus_dma_tag_common *tc;
114
115 tc = (struct bus_dma_tag_common *)dmat;
116 return (tc->impl->load_ma(dmat, map, ma, tlen, ma_offs, flags,
117 segs, segp));
118 }
119
120 static inline int
_bus_dmamap_load_buffer(bus_dma_tag_t dmat,bus_dmamap_t map,void * buf,bus_size_t buflen,struct pmap * pmap,int flags,bus_dma_segment_t * segs,int * segp)121 _bus_dmamap_load_buffer(bus_dma_tag_t dmat, bus_dmamap_t map, void *buf,
122 bus_size_t buflen, struct pmap *pmap, int flags, bus_dma_segment_t *segs,
123 int *segp)
124 {
125 struct bus_dma_tag_common *tc;
126
127 tc = (struct bus_dma_tag_common *)dmat;
128 return (tc->impl->load_buffer(dmat, map, buf, buflen, pmap, flags, segs,
129 segp));
130 }
131
132 static inline void
_bus_dmamap_waitok(bus_dma_tag_t dmat,bus_dmamap_t map,struct memdesc * mem,bus_dmamap_callback_t * callback,void * callback_arg)133 _bus_dmamap_waitok(bus_dma_tag_t dmat, bus_dmamap_t map,
134 struct memdesc *mem, bus_dmamap_callback_t *callback, void *callback_arg)
135 {
136 struct bus_dma_tag_common *tc;
137
138 tc = (struct bus_dma_tag_common *)dmat;
139 tc->impl->map_waitok(dmat, map, mem, callback, callback_arg);
140 }
141
142 static inline bus_dma_segment_t *
_bus_dmamap_complete(bus_dma_tag_t dmat,bus_dmamap_t map,bus_dma_segment_t * segs,int nsegs,int error)143 _bus_dmamap_complete(bus_dma_tag_t dmat, bus_dmamap_t map,
144 bus_dma_segment_t *segs, int nsegs, int error)
145 {
146 struct bus_dma_tag_common *tc;
147
148 tc = (struct bus_dma_tag_common *)dmat;
149 return (tc->impl->map_complete(dmat, map, segs, nsegs, error));
150 }
151
152 #ifdef KMSAN
153 static inline void
_bus_dmamap_load_kmsan(bus_dma_tag_t dmat,bus_dmamap_t map,struct memdesc * mem)154 _bus_dmamap_load_kmsan(bus_dma_tag_t dmat, bus_dmamap_t map,
155 struct memdesc *mem)
156 {
157 struct bus_dma_tag_common *tc;
158
159 tc = (struct bus_dma_tag_common *)dmat;
160 return (tc->impl->load_kmsan(map, mem));
161 }
162 #endif
163
164 #endif /* !_MACHINE_BUS_DMA_H_ */
165