From d635711daa98be86d4c7fd01499c34f566b54ccb Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Fri, 10 Jun 2016 05:30:17 -0300 Subject: Linux-libre 4.6.2-gnu --- Documentation/ABI/testing/sysfs-devices-system-cpu | 69 ++++++++++++++++++++++ 1 file changed, 69 insertions(+) (limited to 'Documentation/ABI/testing/sysfs-devices-system-cpu') diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index b683e8ee6..16501334b 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -271,3 +271,72 @@ Description: Parameters for the CPU cache attributes - WriteBack: data is written only to the cache line and the modified cache line is written to main memory only when it is replaced + +What: /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats + /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/turbo_stat + /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/sub_turbo_stat + /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/unthrottle + /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/powercap + /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/overtemp + /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/supply_fault + /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/overcurrent + /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/occ_reset +Date: March 2016 +Contact: Linux kernel mailing list + Linux for PowerPC mailing list +Description: POWERNV CPUFreq driver's frequency throttle stats directory and + attributes + + 'cpuX/cpufreq/throttle_stats' directory contains the CPU frequency + throttle stat attributes for the chip. The throttle stats of a cpu + is common across all the cpus belonging to a chip. Below are the + throttle attributes exported in the 'throttle_stats' directory: + + - turbo_stat : This file gives the total number of times the max + frequency is throttled to lower frequency in turbo (at and above + nominal frequency) range of frequencies. + + - sub_turbo_stat : This file gives the total number of times the + max frequency is throttled to lower frequency in sub-turbo(below + nominal frequency) range of frequencies. + + - unthrottle : This file gives the total number of times the max + frequency is unthrottled after being throttled. + + - powercap : This file gives the total number of times the max + frequency is throttled due to 'Power Capping'. + + - overtemp : This file gives the total number of times the max + frequency is throttled due to 'CPU Over Temperature'. + + - supply_fault : This file gives the total number of times the + max frequency is throttled due to 'Power Supply Failure'. + + - overcurrent : This file gives the total number of times the + max frequency is throttled due to 'Overcurrent'. + + - occ_reset : This file gives the total number of times the max + frequency is throttled due to 'OCC Reset'. + + The sysfs attributes representing different throttle reasons like + powercap, overtemp, supply_fault, overcurrent and occ_reset map to + the reasons provided by OCC firmware for throttling the frequency. + +What: /sys/devices/system/cpu/cpufreq/policyX/throttle_stats + /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/turbo_stat + /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/sub_turbo_stat + /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/unthrottle + /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/powercap + /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/overtemp + /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/supply_fault + /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/overcurrent + /sys/devices/system/cpu/cpufreq/policyX/throttle_stats/occ_reset +Date: March 2016 +Contact: Linux kernel mailing list + Linux for PowerPC mailing list +Description: POWERNV CPUFreq driver's frequency throttle stats directory and + attributes + + 'policyX/throttle_stats' directory and all the attributes are same as + the /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats directory and + attributes which give the frequency throttle information of the chip. -- cgit v1.2.3-54-g00ecf