diff options
| author | Adrian Chadd <adrian@FreeBSD.org> | 2026-02-15 02:10:31 +0000 |
|---|---|---|
| committer | Adrian Chadd <adrian@FreeBSD.org> | 2026-05-01 21:14:31 +0000 |
| commit | 330e4f6acbdc360c0dc466f4d54bc63e663d307a (patch) | |
| tree | 549dd8963841fbb7b00237536f81ab8af0333a07 | |
| parent | 3bcb7c2a33206d52cecb349b77b2a631728bc7d1 (diff) | |
powerpc: create a tag with the parents implementation if supplied
If a parent tag is supplied then use its implementation.
Differential Revision: https://reviews.freebsd.org/D55314
| -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); } |