[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: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Signed-off-by: Dave Jones <davej@redhat.com>
diff --git a/Documentation/cpu-freq/user-guide.txt b/Documentation/cpu-freq/user-guide.txt
index 5d5f5fa..2a5b850 100644
--- a/Documentation/cpu-freq/user-guide.txt
+++ b/Documentation/cpu-freq/user-guide.txt
@@ -176,7 +176,9 @@
work on some specific architectures or
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.
@@ -196,7 +198,10 @@
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
set the CPU operating frequency to a specific value, you can read out