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

John Baldwin jhb at
Mon Sep 26 12:35:36 PDT 2005

jhb         2005-09-26 19:35:33 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_6)
    sys/alpha/alpha      busdma_machdep.c 
  MFC: Add a memory barrier for PREWRITE operations to ensure all writes by
  the CPU have drained before further writes to kick off the DMA operation.
  Approved by:    re (kensmith)
  Revision  Changes    Path  +4 -0      src/sys/alpha/alpha/busdma_machdep.c

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