On Fri, 14 Oct 2016, Fenghua Yu wrote:

> From: Fenghua Yu <fenghua...@intel.com>
> 
> Add an ABI document entry for /sys/devices/system/cpu/cpu*/cache/index*/id.
> 
> Signed-off-by: Fenghua Yu <fenghua...@intel.com>
> Signed-off-by: Tony Luck <tony.l...@intel.com>

The SOB chain here is bogus ....

> ---
>  Documentation/ABI/testing/sysfs-devices-system-cpu | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu 
> b/Documentation/ABI/testing/sysfs-devices-system-cpu
> index 4987417..b1c3d69 100644
> --- a/Documentation/ABI/testing/sysfs-devices-system-cpu
> +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
> @@ -272,6 +272,22 @@ Description:     Parameters for the CPU cache attributes
>                                    the modified cache line is written to main
>                                    memory only when it is replaced
>  
> +
> +What:                /sys/devices/system/cpu/cpu*/cache/index*/id
> +Date:                September 2016
> +Contact:     Linux kernel mailing list <linux-kernel@vger.kernel.org>
> +Description: Cache id
> +
> +             The id provides a unique name for a specific instance of

s/name/number/

> +             a cache of a particular type. E.g. there may be a level
> +             3 unified cache on each socket in a server and we may
> +             assign them ids 0, 1, 2, ...
> +
> +             Note that id value may not be contiguous. E.g. level 1

Note, that the id values can be non-contiguous.

> +             caches typically exist per core, but there may not be a
> +             power of two cores on a socket, so these caches may be
> +             numbered 0, 1, 2, 3, 4, 5, 8, 9, 10, ...
> +

Thanks,

        tglx

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