Olivier Houchard wrote:
cognet 2006-03-01 23:04:25 UTC
FreeBSD src repository
Modified files:
sys/arm/arm busdma_machdep.c pmap.c vm_machdep.c
sys/arm/include pmap.h
Log:
Try to honor BUS_DMA_COHERENT : if the flag is set, normally allocate memory
with malloc() or contigmalloc() as usual, but try to re-map the allocated
memory into a VA outside the KVA, non-cached, thus making the calls to
bus_dmamap_sync() for these buffers useless.
Revision Changes Path
1.25 +25 -0 src/sys/arm/arm/busdma_machdep.c
1.42 +11 -1 src/sys/arm/arm/pmap.c
1.22 +59 -1 src/sys/arm/arm/vm_machdep.c
1.15 +7 -0 src/sys/arm/include/pmap.h
Cool. Would you be interested in updating the manual page when you're
done to note that the flag actually works on arm?
Scott
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