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| author | jmg <jmg@FreeBSD.org> | 2004-08-11 14:52:33 +0000 |
|---|---|---|
| committer | jmg <jmg@FreeBSD.org> | 2004-08-11 14:52:33 +0000 |
| commit | f25be330cc4ca73242e080abbd5632df39cf6f55 (patch) | |
| tree | 5fdd08f05c644d2f43a4036c7003572d28a280f5 /share | |
| parent | 1f559bc298988799e85f3addb028787b98363d50 (diff) | |
| download | FreeBSD-src-f25be330cc4ca73242e080abbd5632df39cf6f55.zip FreeBSD-src-f25be330cc4ca73242e080abbd5632df39cf6f55.tar.gz | |
fix description of the macros for BUS_DMASYNC opertions. It's from the CPU's
point of view... Add a reference to a better description of what the ops
do...
Reviewed by: scottl
Diffstat (limited to 'share')
| -rw-r--r-- | share/man/man9/bus_dma.9 | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/share/man/man9/bus_dma.9 b/share/man/man9/bus_dma.9 index 124e258..be1dfdd 100644 --- a/share/man/man9/bus_dma.9 +++ b/share/man/man9/bus_dma.9 @@ -239,8 +239,10 @@ The allows the type of DMA operation that will be or has been performed to be communicated to the system so that the correct coherency measures are taken. -All operations specified below are performed from the DMA engine's -point of view: +All operations specified below are performed from the CPU's +point of view (for a complete description, see the +.Fn bus_dmamap_sync +description below): .Bl -tag -width BUS_DMASYNC_POSTWRITE .It Dv BUS_DMASYNC_PREREAD Perform any synchronization required after an update of memory by the CPU |
