cvs commit: src/sys/amd64/amd64 busdma_machdep.c

[Scott Long]

scottl      2004-11-21 04:15:26 UTC

  FreeBSD src repository

  Modified files:
    sys/amd64/amd64      busdma_machdep.c 
  Log:
  Consolidate all of the bounce tests into the BUS_DMA_COULD_BOUNCE flag.
  Allocate the bounce zone at either tag creation or map creation to help
  avoid null-pointer derefs later on.  Track total pages per zone so that
  each zone can get a minimum allocation at tag creation time instead of
  being defeated by mis-behaving tags that suck up the max amount.
  
  Revision  Changes    Path
  1.62      +45 -29    src/sys/amd64/amd64/busdma_machdep.c