diff options
author | Takashi Iwai <tiwai@suse.de> | 2009-12-17 12:27:22 +0100 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2009-12-17 12:27:22 +0100 |
commit | 67cbf8a216259dceefe570f6dc14746f43b2e627 (patch) | |
tree | 1eca0b9922dee01b4d00dc0713b7ff434dddd44c /Documentation/cpu-freq | |
parent | ALSA: Release v1.0.22 (diff) | |
parent | sound/oss/pss: Fix test of unsigned in pss_reset_dsp() and pss_download_boot() (diff) | |
download | linux-67cbf8a216259dceefe570f6dc14746f43b2e627.tar.xz linux-67cbf8a216259dceefe570f6dc14746f43b2e627.zip |
Merge branch 'fix/misc' into topic/misc
Diffstat (limited to 'Documentation/cpu-freq')
-rw-r--r-- | Documentation/cpu-freq/cpu-drivers.txt | 6 | ||||
-rw-r--r-- | Documentation/cpu-freq/user-guide.txt | 11 |
2 files changed, 14 insertions, 3 deletions
diff --git a/Documentation/cpu-freq/cpu-drivers.txt b/Documentation/cpu-freq/cpu-drivers.txt index 75a58d14d3cf..6c30e930c122 100644 --- a/Documentation/cpu-freq/cpu-drivers.txt +++ b/Documentation/cpu-freq/cpu-drivers.txt @@ -92,9 +92,9 @@ policy->cpuinfo.max_freq - the minimum and maximum frequency (in kHz) which is supported by this CPU policy->cpuinfo.transition_latency the time it takes on this CPU to - switch between two frequencies (if - appropriate, else specify - CPUFREQ_ETERNAL) + switch between two frequencies in + nanoseconds (if appropriate, else + specify CPUFREQ_ETERNAL) policy->cur The current operating frequency of this CPU (if appropriate) diff --git a/Documentation/cpu-freq/user-guide.txt b/Documentation/cpu-freq/user-guide.txt index 2a5b850847c0..04f6b32993e6 100644 --- a/Documentation/cpu-freq/user-guide.txt +++ b/Documentation/cpu-freq/user-guide.txt @@ -203,6 +203,17 @@ scaling_cur_freq : Current frequency of the CPU as determined by the frequency the kernel thinks the CPU runs at. +bios_limit : If the BIOS tells the OS to limit a CPU to + lower frequencies, the user can read out the + maximum available frequency from this file. + This typically can happen through (often not + intended) BIOS settings, restrictions + triggered through a service processor or other + BIOS/HW based implementations. + This does not cover thermal ACPI limitations + which can be detected through the generic + thermal driver. + If you have selected the "userspace" governor which allows you to set the CPU operating frequency to a specific value, you can read out the current frequency in |