Messages in this thread | | | Date | Thu, 8 Sep 2016 21:33:37 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH v2 02/33] Documentation, ABI: Add a document entry for cache id |
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On Thu, 8 Sep 2016, Fenghua Yu wrote: > +What: /sys/devices/system/cpu/cpu*/cache/index*/id > +Date: July 2016 > +Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org> > +Description: Cache id > + > + The id identifies a hardware cache of the system within a given > + cache index in a set of cache indices. The "index" name is > + simply a nomenclature from CPUID's leaf 4 which enumerates all > + caches on the system by referring to each one as a cache index. > + The (cache index, cache id) pair is unique for the whole > + system. > + > + Currently id is implemented on x86. On other platforms, id is > + not enabled yet.
And it never will be available on anything else than x86 because there is no other architecture providing CPUID leaf 4 ....
If you want this to be generic then get rid of the x86isms in the explanation and describe the x86 specific part seperately.
Thanks,
tglx
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