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| author | scottl <scottl@FreeBSD.org> | 2004-07-04 04:50:00 +0000 |
|---|---|---|
| committer | scottl <scottl@FreeBSD.org> | 2004-07-04 04:50:00 +0000 |
| commit | 833ca0492e7de2fe5e0d9c0f37fea54b62593cf5 (patch) | |
| tree | fe0a40603b33c2b8b620feeecdc44d15853c0206 | |
| parent | 7c4554894be4cfc79f028e36969c99d616ace91c (diff) | |
| download | FreeBSD-src-833ca0492e7de2fe5e0d9c0f37fea54b62593cf5.zip FreeBSD-src-833ca0492e7de2fe5e0d9c0f37fea54b62593cf5.tar.gz | |
Document that boundaries cannot be smaller than the max segment size.
| -rw-r--r-- | share/man/man9/bus_dma.9 | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/share/man/man9/bus_dma.9 b/share/man/man9/bus_dma.9 index 2221368..124e258 100644 --- a/share/man/man9/bus_dma.9 +++ b/share/man/man9/bus_dma.9 @@ -322,7 +322,8 @@ Boundary constraint, in bytes, of the target DMA memory region. The boundary indicates the set of addresses, all multiples of the boundary argument, that cannot be crossed by a single .Vt bus_dma_segment_t . -The boundary must be a power of 2. +The boundary must be a power of 2 and must be no smaller that the +maximum segment size. .Ql 0 indicates that there are no boundary restrictions. .It Fa lowaddr |
