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    [SPARC64]: Refine code sequences to get the cpu id. · 92704a1c
    David S. Miller 提交于
    On uniprocessor, it's always zero for optimize that.
    
    On SMP, the jmpl to the stub kills the return address stack in the cpu
    branch prediction logic, so expand the code sequence inline and use a
    code patching section to fix things up.  This also always better and
    explicit register selection, which will be taken advantage of in a
    future changeset.
    
    The hard_smp_processor_id() function is big, so do not inline it.
    
    Fix up tests for Jalapeno to also test for Serrano chips too.  These
    tests want "jbus Ultra-IIIi" cases to match, so that is what we should
    test for.
    Signed-off-by: NDavid S. Miller <davem@davemloft.net>
    92704a1c
traps.c 63.0 KB