Messages in this thread | | | Date | Thu, 15 Dec 2011 17:19:46 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH 07/10] cpufreq: Add support for x86 cpuinfo auto loading |
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On 12/08/2011 06:37 AM, Andi Kleen wrote: >> Well, there is CPUID_8000_0007_EDX[7] which denotes the presence >> of the P-state registers. It probably could be added to >> init_scattered_cpuid_features() but there's still special handling >> needed for K8. > > Dave is probably right that it's not worth moving the list. > >> Can you do both a family and a feature bit test with the autoprobing >> code? >
Another similar question: is it possible to key a load on more than one CPU feature? It's fairly common that you need more than one feature for a specific piece of code to function, and it would be good to be able to represent it.
-hpa
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