Re: [PATCH V2 4/4] perf/x86/intel/uncore: SKX support for IIO freerunning counter

[Thomas Gleixner]

On Thu, 19 Oct 2017, kan.liang@xxxxxxxxx wrote:

> As of Skylake Server, there are a number of free-running counters in
> each IIO Box that collect counts for per box IO clocks and per Port
> Input/Output x BW/Utilization.
> 
> Freerunning counters cannot be written by SW. Counting will be suspended
> only when the IIO Box is powered down.

Free running counters are read only and always active when the IIO box is
powered up.

> 
> The bit width of freerunning counter is 36-bit.

Please use 'free running' consistently all over the place.

Thanks,

	tglx