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