diff options
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-devices-system-cpu | 69 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-toshiba_acpi | 16 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 14 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl | 23 |
4 files changed, 122 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index b683e8ee69ec..16501334b99f 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-kernel@vger.kernel.org> + Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org> +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-kernel@vger.kernel.org> + Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org> +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. diff --git a/Documentation/ABI/testing/sysfs-driver-toshiba_acpi b/Documentation/ABI/testing/sysfs-driver-toshiba_acpi index eed922ef42e5..f34221b52b14 100644 --- a/Documentation/ABI/testing/sysfs-driver-toshiba_acpi +++ b/Documentation/ABI/testing/sysfs-driver-toshiba_acpi @@ -179,3 +179,19 @@ Description: This file controls the USB 3 functionality, valid values are: Note that toggling this value requires a reboot for changes to take effect. Users: KToshiba + +What: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/TOS{1900,620{0,7,8}}:00/cooling_method +Date: 2016 +KernelVersion: 4.6 +Contact: Azael Avalos <coproscefalo@gmail.com> +Description: This file controls the Cooling Method feature. + Reading this file prints two values, the first is the actual cooling method + and the second is the maximum cooling method supported. + When the maximum cooling method is ONE, valid values are: + * 0 -> Maximum Performance + * 1 -> Battery Optimized + When the maximum cooling method is TWO, valid values are: + * 0 -> Maximum Performance + * 1 -> Performance + * 2 -> Battery Optimized +Users: KToshiba diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index e5200f354abf..a809f6005f14 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -98,3 +98,17 @@ Date: October 2015 Contact: "Chao Yu" <chao2.yu@samsung.com> Description: Controls the count of nid pages to be readaheaded. + +What: /sys/fs/f2fs/<disk>/dirty_nats_ratio +Date: January 2016 +Contact: "Chao Yu" <chao2.yu@samsung.com> +Description: + Controls dirty nat entries ratio threshold, if current + ratio exceeds configured threshold, checkpoint will + be triggered for flushing dirty nat entries. + +What: /sys/fs/f2fs/<disk>/lifetime_write_kbytes +Date: January 2016 +Contact: "Shuoran Liu" <liushuoran@huawei.com> +Description: + Shows total written kbytes issued to disk. diff --git a/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl b/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl new file mode 100644 index 000000000000..7ac7d7262bb7 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl @@ -0,0 +1,23 @@ +What: /sys/devices/platform/<i2c-demux-name>/cur_master +Date: January 2016 +KernelVersion: 4.6 +Contact: Wolfram Sang <wsa@the-dreams.de> +Description: + +This file selects the active I2C master for a demultiplexed bus. + +Write 0 there for the first master, 1 for the second etc. Reading the file will +give you a list with the active master marked. Example from a Renesas Lager +board: + +root@Lager:~# cat /sys/devices/platform/i2c@8/cur_master +* 0 - /i2c@9 + 1 - /i2c@e6520000 + 2 - /i2c@e6530000 + +root@Lager:~# echo 2 > /sys/devices/platform/i2c@8/cur_master + +root@Lager:~# cat /sys/devices/platform/i2c@8/cur_master + 0 - /i2c@9 + 1 - /i2c@e6520000 +* 2 - /i2c@e6530000 |
