Re: [ACPI] Re: Linux 2.4.26-rc1 (cmpxchg vs 80386 build)

[Maciej W. Rozycki]

On Tue, 30 Mar 2004, Bill Davidsen wrote:

> Is there no reasonable way to avoid using it in ACPI? It's not as if 
> performance was critical there, or the code gets run often. Too bad it 
> can't just be emulated like floating point, but I don't think it can on SMP.

 Well, "cmpxchg", "xadd", etc. can be easily emulated with an aid of a
spinlock.  With SMP operation included.

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
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+        e-mail: macro@xxxxxxxxxxxxx, PGP key available        +
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