diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/powerpc/powerpc/busdma_machdep.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/sys/powerpc/powerpc/busdma_machdep.c b/sys/powerpc/powerpc/busdma_machdep.c index 5118a8847375..8e73e303cb11 100644 --- a/sys/powerpc/powerpc/busdma_machdep.c +++ b/sys/powerpc/powerpc/busdma_machdep.c @@ -71,15 +71,24 @@ 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) { + struct bus_dma_tag_common *tc; + int error; /* Filters are no longer supported. */ if (filter != NULL || filterarg != NULL) return (EINVAL); - - return bus_dma_bounce_impl.tag_create(parent, alignment, - boundary, lowaddr, highaddr, maxsize, nsegments, - maxsegsz, flags, lockfunc, lockfuncarg, dmat); + if (parent == NULL) { + error = bus_dma_bounce_impl.tag_create(parent, alignment, + boundary, lowaddr, highaddr, maxsize, nsegments, maxsegsz, + flags, lockfunc, lockfuncarg, dmat); + } else { + tc = (struct bus_dma_tag_common *)parent; + error = tc->impl->tag_create(parent, alignment, + boundary, lowaddr, highaddr, maxsize, nsegments, maxsegsz, + flags, lockfunc, lockfuncarg, dmat); + } + return (error); } |