CVS commit: src/share/man/man9

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Tue Jun  4 21:43:13 UTC 2024

Modified Files:
        src/share/man/man9: bus_dma.9

Log Message:
bus_dma(9): Document BUS_DMA_PREFETCHABLE.

Like BUS_DMA_NOCACHE.  Doesn't absolve you of the need for
bus_dmamap_sync, but if you later pass the vaddr to bus_dmamap_load,
the DMA map might notice the mapping is write-combining and use this
to make bus_dmamap_sync cheaper.

PR kern/58309


To generate a diff of this commit:
cvs rdiff -u -r1.68 -r1.69 src/share/man/man9/bus_dma.9

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.