rtems/rtems-libbsd
1
0
Fork 0
mirror of https://git.rtems.org/rtems-libbsd/ synced 2025-07-21 23:37:29 +08:00
Code Issues Packages Projects Releases Wiki Activity

BUS_DMA(9): Support BUS_DMA_COHERENT

Browse Source
This commit is contained in:
Sebastian Huber 2014-11-25 12:50:29 +01:00
parent 33a15c304b
commit fb683f76b5
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
rtemsbsd/rtems/rtems-bsd-bus-dma.c
View File

@ -237,7 +237,14 @@ bus_dmamem_alloc(bus_dma_tag_t dmat, void** vaddr, int flags,
return ENOMEM; return ENOMEM;
} }
*vaddr = rtems_heap_allocate_aligned_with_boundary(dmat->maxsize, dmat->alignment, dmat->boundary); if ((flags & BUS_DMA_COHERENT) != 0) {
*vaddr = rtems_cache_coherent_allocate(
dmat->maxsize, dmat->alignment, dmat->boundary);
} else {
*vaddr = rtems_heap_allocate_aligned_with_boundary(
dmat->maxsize, dmat->alignment, dmat->boundary);
}
if (*vaddr == NULL) { if (*vaddr == NULL) {
free(*mapp, M_DEVBUF); free(*mapp, M_DEVBUF);
@ -261,7 +268,7 @@ bus_dmamem_alloc(bus_dma_tag_t dmat, void** vaddr, int flags,
void void
bus_dmamem_free(bus_dma_tag_t dmat, void *vaddr, bus_dmamap_t map) bus_dmamem_free(bus_dma_tag_t dmat, void *vaddr, bus_dmamap_t map)
{ {
free(vaddr, M_RTEMS_HEAP); rtems_cache_coherent_free(vaddr);
free(map, M_DEVBUF); free(map, M_DEVBUF);
} }