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.  Make the same choice for free/contigfree.
 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#endif /* !_MACHINE_BUS_DMA_H_ */