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Add missing busdma prototypes for load and unload and implement dummy sync

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function for kernel bootloader shim code.

MFC after:	1 week
Sponsored by:	Mellanox Technologies // NVIDIA Networking
This commit is contained in:
Hans Petter Selasky 2020-12-07 10:51:19 +00:00
parent 34602358c0
commit cc7b5411e6
2 changed files with 21 additions and 4 deletions
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7
stand/kshim/bsd_kernel.c
View File

@ -91,6 +91,13 @@ bus_dmamap_load(bus_dma_tag_t dmat, bus_dmamap_t map, void *buf,
return (0);
}
void
bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, int flags)
{
/* Assuming coherent memory */
__asm__ __volatile__("": : :"memory");
}
void
bus_dmamem_free(bus_dma_tag_t dmat, void *vaddr, bus_dmamap_t map)
{

18
stand/kshim/bsd_kernel.h
View File

@ -669,6 +669,11 @@ extern int delay(unsigned int);
#define BUS_DMA_BUS3 0x40
#define BUS_DMA_BUS4 0x80
#define BUS_DMASYNC_PREREAD 0x01
#define BUS_DMASYNC_POSTREAD 0x02
#define BUS_DMASYNC_PREWRITE 0x04
#define BUS_DMASYNC_POSTWRITE 0x08
typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
int
@ -679,9 +684,14 @@ bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
bus_size_t maxsegsz, int flags, bus_dma_lock_t *lockfunc,
void *lockfuncarg, bus_dma_tag_t *dmat);
int bus_dmamem_alloc(bus_dma_tag_t dmat, void** vaddr, int flags,
bus_dmamap_t *mapp);
void bus_dmamem_free(bus_dma_tag_t dmat, void *vaddr, bus_dmamap_t map);
int bus_dma_tag_destroy(bus_dma_tag_t dmat);
int bus_dmamem_alloc(bus_dma_tag_t, void** vaddr, int flags, bus_dmamap_t *);
void bus_dmamem_free(bus_dma_tag_t, void *vaddr, bus_dmamap_t);
int bus_dma_tag_destroy(bus_dma_tag_t);
int bus_dmamap_load(bus_dma_tag_t, bus_dmamap_t, void *buf,
bus_size_t buflen, bus_dmamap_callback_t *,
void *callback_arg, int flags);
void bus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t);
void bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, int flags);
#endif /* _BSD_KERNEL_H_ */