git: busdma - Fix bouncebuffer operation for 64 bit builds / mountroot & boot issues

[Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxxxxx>]

commit a307f702575f4bb237d02027df0c96234ae498d6
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date:   Sat Dec 19 12:00:46 2009 -0800

    busdma - Fix bouncebuffer operation for 64 bit builds / mountroot & boot issues
    
    * BUF_SPACE_MAXADDR was incorrectly defined for 64 bit builds, effectively
      disabling bounce buffers.  Fixed.
    
    * This created issues with drivers (particularly NATA) which only support
      32 bit physical addresses, causing x86_64 machines to fail to boot or
      to blow up.
    
    Reported-by: several people

Summary of changes:
 sys/cpu/x86_64/include/bus_dma.h |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/a307f702575f4bb237d02027df0c96234ae498d6


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