In message: <20020805022258.GA8147@thistledown.com.au>
            Simon Burge <simonb@wasabisystems.com> writes:
: Could folks that know for sure that various models of MIPS cpus _don't_
: support the LL & SC instructions please update the table we have that
: describes CPU cababilities?  This involves adding the CPU_MIPS_NO_LLSC
: flag in the cputab in sys/arch/mips/mips/mips_machdep.c.
: 
: Currently the MIPS1 cpus and the R5900 are listed; I know that some of
: the CPUs used in the HPCMIPS devices don't support LL/SC, but I'm not
: 100% sure which ones...

All the Vr41xx processors defintiely (at least through the 4121 and
4181, not sure about the 4131) do not have LL/SC.  I think that the
R39xx class of cpus don't have them either.

Warner