cvs commit: src/sys/arm/arm busdma_machdep.c

[Olivier Houchard]

cognet      2006-05-31 15:50:33 UTC

  FreeBSD src repository

  Modified files:
    sys/arm/arm          busdma_machdep.c 
  Log:
  If our buffer is not aligned on the cache line size, write back/invalidate
  the first and last cache line in PREREAD, and just invalidate the cache
  lines in POSTREAD, instead of write-back/invalidating in POSTREAD, which
  could lead to stale data overriding what has been transfered by DMA.
  
  Revision  Changes    Path
  1.26      +10 -7     src/sys/arm/arm/busdma_machdep.c