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 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 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 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 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. Make the same choice for free/contigfree. 66 */ 67 static inline void 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 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 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 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 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 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 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 * 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 #endif /* !_MACHINE_BUS_DMA_H_ */ 153