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Commit da470db1 authored by Naga Chumbalkar's avatar Naga Chumbalkar Committed by Dave Jones
Browse files

[CPUFREQ] update Doc for cpuinfo_cur_freq and scaling_cur_freq 



I think the way "cpuinfo_cur_info" and "scaling_cur_info" are defined under
./Documentation/cpu-freq/user-guide.txt can be enhanced. Currently, they are
both defined the same way: "Current speed/frequency" of the CPU, in KHz".

Below is a patch that distinguishes one from the other.

Regards,
- naga -

-----------------------------------------
Update description for "cpuinfo_cur_freq" and "scaling_cur_freq".

Some of the wording is drawn from comments found in
./drivers/cpufreq/cpufreq.c: cpufreq_out_of_sync():

 *      @old_freq: CPU frequency the kernel thinks the CPU runs at
 *      @new_freq: CPU frequency the CPU actually runs at

Signed-off-by: default avatarNaga Chumbalkar <nagananda.chumbalkar@hp.com>
Signed-off-by: default avatarDave Jones <davej@redhat.com>
parent ce6c3997

Documentation/cpu-freq/user-guide.txt

+7 −2
Original line number Original line Diff line number Diff line
@@ -176,7 +176,9 @@ scaling_governor, and by "echoing" the name of another 
				work on some specific architectures or

				work on some specific architectures or

				processors.

				processors.





cpuinfo_cur_freq :		Current speed of the CPU, in KHz.

cpuinfo_cur_freq :		Current frequency of the CPU as obtained from

				the hardware, in KHz. This is the frequency

				the CPU actually runs at.





scaling_available_frequencies : List of available frequencies, in KHz.

scaling_available_frequencies : List of available frequencies, in KHz.
@@ -196,7 +198,10 @@ related_cpus : List of CPUs that need some sort of frequency 




scaling_driver :		Hardware driver for cpufreq.

scaling_driver :		Hardware driver for cpufreq.





scaling_cur_freq :		Current frequency of the CPU, in KHz.

scaling_cur_freq :		Current frequency of the CPU as determined by

				the governor and cpufreq core, in KHz. This is

				the frequency the kernel thinks the CPU runs

				at.





If you have selected the "userspace" governor which allows you to

If you have selected the "userspace" governor which allows you to

set the CPU operating frequency to a specific value, you can read out

set the CPU operating frequency to a specific value, you can read out