Re: Learning the FreeBSD Kernel

[Warner Losh]

In message <[EMAIL PROTECTED]> Jeroen Ruigrok/Asmodai writes:
: >As long as a device is just inb/outb (I seem to recall newbus have a
: >replacement for these)
: 
: bus_space_read_#() / bus_space_write_#()
: 
: Where # is 1, 2, 4, or 8.  But I don't think we support atomic 8 byte
: atomic reads and writes.

It isn't so much that "we" don't support atomic 8 byte operations, it
is that the busses and cpus don't support these operations...

Warner


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