diff options
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-devices-system-cpu | 15 | ||||
| -rw-r--r-- | Documentation/ABI/testing/ima_policy | 8 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-thermal | 259 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-timecard | 174 |
4 files changed, 454 insertions, 2 deletions
diff --git a/Documentation/ABI/stable/sysfs-devices-system-cpu b/Documentation/ABI/stable/sysfs-devices-system-cpu index 516dafea03eb..3965ce504484 100644 --- a/Documentation/ABI/stable/sysfs-devices-system-cpu +++ b/Documentation/ABI/stable/sysfs-devices-system-cpu @@ -42,6 +42,12 @@ Description: the CPU core ID of cpuX. Typically it is the hardware platform's architecture and platform dependent. Values: integer +What: /sys/devices/system/cpu/cpuX/topology/cluster_id +Description: the cluster ID of cpuX. Typically it is the hardware platform's + identifier (rather than the kernel's). The actual value is + architecture and platform dependent. +Values: integer + What: /sys/devices/system/cpu/cpuX/topology/book_id Description: the book ID of cpuX. Typically it is the hardware platform's identifier (rather than the kernel's). The actual value is @@ -85,6 +91,15 @@ Description: human-readable list of CPUs within the same die. The format is like 0-3, 8-11, 14,17. Values: decimal list. +What: /sys/devices/system/cpu/cpuX/topology/cluster_cpus +Description: internal kernel map of CPUs within the same cluster. +Values: hexadecimal bitmask. + +What: /sys/devices/system/cpu/cpuX/topology/cluster_cpus_list +Description: human-readable list of CPUs within the same cluster. + The format is like 0-3, 8-11, 14,17. +Values: decimal list. + What: /sys/devices/system/cpu/cpuX/topology/book_siblings Description: internal kernel map of cpuX's hardware threads within the same book_id. it's only used on s390. diff --git a/Documentation/ABI/testing/ima_policy b/Documentation/ABI/testing/ima_policy index 5c2798534950..e1a04bd3b9e5 100644 --- a/Documentation/ABI/testing/ima_policy +++ b/Documentation/ABI/testing/ima_policy @@ -22,8 +22,9 @@ Description: action: measure | dont_measure | appraise | dont_appraise | audit | hash | dont_hash condition:= base | lsm [option] - base: [[func=] [mask=] [fsmagic=] [fsuuid=] [uid=] - [euid=] [fowner=] [fsname=]] + base: [[func=] [mask=] [fsmagic=] [fsuuid=] [fsname=] + [uid=] [euid=] [gid=] [egid=] + [fowner=] [fgroup=]] lsm: [[subj_user=] [subj_role=] [subj_type=] [obj_user=] [obj_role=] [obj_type=]] option: [[appraise_type=]] [template=] [permit_directio] @@ -40,7 +41,10 @@ Description: fsuuid:= file system UUID (e.g 8bcbe394-4f13-4144-be8e-5aa9ea2ce2f6) uid:= decimal value euid:= decimal value + gid:= decimal value + egid:= decimal value fowner:= decimal value + fgroup:= decimal value lsm: are LSM specific option: appraise_type:= [imasig] [imasig|modsig] diff --git a/Documentation/ABI/testing/sysfs-class-thermal b/Documentation/ABI/testing/sysfs-class-thermal new file mode 100644 index 000000000000..2c52bb1f864c --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-thermal @@ -0,0 +1,259 @@ +What: /sys/class/thermal/thermal_zoneX/type +Description: + Strings which represent the thermal zone type. + This is given by thermal zone driver as part of registration. + E.g: "acpitz" indicates it's an ACPI thermal device. + In order to keep it consistent with hwmon sys attribute; this + shouldbe a short, lowercase string, not containing spaces nor + dashes. + + RO, Required + +What: /sys/class/thermal/thermal_zoneX/temp +Description: + Current temperature as reported by thermal zone (sensor). + + Unit: millidegree Celsius + + RO, Required + +What: /sys/class/thermal/thermal_zoneX/mode +Description: + One of the predefined values in [enabled, disabled]. + This file gives information about the algorithm that is + currently managing the thermal zone. It can be either default + kernel based algorithm or user space application. + + enabled + enable Kernel Thermal management. + disabled + Preventing kernel thermal zone driver actions upon + trip points so that user application can take full + charge of the thermal management. + + RW, Optional + +What: /sys/class/thermal/thermal_zoneX/policy +Description: + One of the various thermal governors used for a particular zone. + + RW, Required + +What: /sys/class/thermal/thermal_zoneX/available_policies +Description: + Available thermal governors which can be used for a + particular zone. + + RO, Required + +What: /sys/class/thermal/thermal_zoneX/trip_point_Y_temp +Description: + The temperature above which trip point will be fired. + + Unit: millidegree Celsius + + RO, Optional + +What: /sys/class/thermal/thermal_zoneX/trip_point_Y_type +Description: + Strings which indicate the type of the trip point. + + E.g. it can be one of critical, hot, passive, `active[0-*]` + for ACPI thermal zone. + + RO, Optional + +What: /sys/class/thermal/thermal_zoneX/trip_point_Y_hyst +Description: + The hysteresis value for a trip point, represented as an + integer. + + Unit: Celsius + + RW, Optional + +What: /sys/class/thermal/thermal_zoneX/cdevY +Description: + Sysfs link to the thermal cooling device node where the sys I/F + for cooling device throttling control represents. + + RO, Optional + +What: /sys/class/thermal/thermal_zoneX/cdevY_trip_point +Description: + The trip point in this thermal zone which `cdev[0-*]` is + associated with; -1 means the cooling device is not + associated with any trip point. + + RO, Optional + +What: /sys/class/thermal/thermal_zoneX/cdevY_weight +Description: + The influence of `cdev[0-*]` in this thermal zone. This value + is relative to the rest of cooling devices in the thermal + zone. For example, if a cooling device has a weight double + than that of other, it's twice as effective in cooling the + thermal zone. + + RW, Optional + +What: /sys/class/thermal/thermal_zoneX/emul_temp +Description: + Interface to set the emulated temperature method in thermal zone + (sensor). After setting this temperature, the thermal zone may + pass this temperature to platform emulation function if + registered or cache it locally. This is useful in debugging + different temperature threshold and its associated cooling + action. This is write only node and writing 0 on this node + should disable emulation. + + Unit: millidegree Celsius + + WO, Optional + + WARNING: + Be careful while enabling this option on production systems, + because userland can easily disable the thermal policy by simply + flooding this sysfs node with low temperature values. + + +What: /sys/class/thermal/thermal_zoneX/k_d +Description: + The derivative term of the power allocator governor's PID + controller. For more information see + Documentation/driver-api/thermal/power_allocator.rst + + RW, Optional + +What: /sys/class/thermal/thermal_zoneX/k_i +Description: + The integral term of the power allocator governor's PID + controller. This term allows the PID controller to compensate + for long term drift. For more information see + Documentation/driver-api/thermal/power_allocator.rst + + RW, Optional + +What: /sys/class/thermal/thermal_zoneX/k_po +Description: + The proportional term of the power allocator governor's PID + controller during temperature overshoot. Temperature overshoot + is when the current temperature is above the "desired + temperature" trip point. For more information see + Documentation/driver-api/thermal/power_allocator.rst + + RW, Optional + +What: /sys/class/thermal/thermal_zoneX/k_pu +Description: + The proportional term of the power allocator governor's PID + controller during temperature undershoot. Temperature undershoot + is when the current temperature is below the "desired + temperature" trip point. For more information see + Documentation/driver-api/thermal/power_allocator.rst + + RW, Optional + +What: /sys/class/thermal/thermal_zoneX/integral_cutoff +Description: + Temperature offset from the desired temperature trip point + above which the integral term of the power allocator + governor's PID controller starts accumulating errors. For + example, if integral_cutoff is 0, then the integral term only + accumulates error when temperature is above the desired + temperature trip point. For more information see + Documentation/driver-api/thermal/power_allocator.rst + + Unit: millidegree Celsius + + RW, Optional + +What: /sys/class/thermal/thermal_zoneX/slope +Description: + The slope constant used in a linear extrapolation model + to determine a hotspot temperature based off the sensor's + raw readings. It is up to the device driver to determine + the usage of these values. + + RW, Optional + +What: /sys/class/thermal/thermal_zoneX/offset +Description: + The offset constant used in a linear extrapolation model + to determine a hotspot temperature based off the sensor's + raw readings. It is up to the device driver to determine + the usage of these values. + + RW, Optional + +What: /sys/class/thermal/thermal_zoneX/sustainable_power +Description: + An estimate of the sustained power that can be dissipated by + the thermal zone. Used by the power allocator governor. For + more information see + Documentation/driver-api/thermal/power_allocator.rst + + Unit: milliwatts + + RW, Optional + +What: /sys/class/thermal/cooling_deviceX/type +Description: + String which represents the type of device, e.g: + + - for generic ACPI: should be "Fan", "Processor" or "LCD" + - for memory controller device on intel_menlow platform: + should be "Memory controller". + + RO, Required + +What: /sys/class/thermal/cooling_deviceX/max_state +Description: + The maximum permissible cooling state of this cooling device. + + RO, Required + +What: /sys/class/thermal/cooling_deviceX/cur_state +Description: + The current cooling state of this cooling device. + The value can any integer numbers between 0 and max_state: + + - cur_state == 0 means no cooling + - cur_state == max_state means the maximum cooling. + + RW, Required + +What: /sys/class/thermal/cooling_deviceX/stats/reset +Description: + Writing any value resets the cooling device's statistics. + + WO, Required + +What: /sys/class/thermal/cooling_deviceX/stats/time_in_state_ms: +Description: + The amount of time spent by the cooling device in various + cooling states. The output will have "<state> <time>" pair + in each line, which will mean this cooling device spent <time> + msec of time at <state>. + + Output will have one line for each of the supported states. + + RO, Required + +What: /sys/class/thermal/cooling_deviceX/stats/total_trans +Description: + A single positive value showing the total number of times + the state of a cooling device is changed. + + RO, Required + +What: /sys/class/thermal/cooling_deviceX/stats/trans_table +Description: + This gives fine grained information about all the cooling state + transitions. The cat output here is a two dimensional matrix, + where an entry <i,j> (row i, column j) represents the number + of transitions from State_i to State_j. If the transition + table is bigger than PAGE_SIZE, reading this will return + an -EFBIG error. + + RO, Required diff --git a/Documentation/ABI/testing/sysfs-timecard b/Documentation/ABI/testing/sysfs-timecard new file mode 100644 index 000000000000..97f6773794a5 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-timecard @@ -0,0 +1,174 @@ +What: /sys/class/timecard/ +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: This directory contains files and directories + providing a standardized interface to the ancillary + features of the OpenCompute timecard. + +What: /sys/class/timecard/ocpN/ +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: This directory contains the attributes of the Nth timecard + registered. + +What: /sys/class/timecard/ocpN/available_clock_sources +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) The list of available time sources that the PHC + uses for clock adjustments. + + ==== ================================================= + NONE no adjustments + PPS adjustments come from the PPS1 selector (default) + TOD adjustments from the GNSS/TOD module + IRIG adjustments from external IRIG-B signal + DCF adjustments from external DCF signal + ==== ================================================= + +What: /sys/class/timecard/ocpN/available_sma_inputs +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Set of available destinations (sinks) for a SMA + input signal. + + ===== ================================================ + 10Mhz signal is used as the 10Mhz reference clock + PPS1 signal is sent to the PPS1 selector + PPS2 signal is sent to the PPS2 selector + TS1 signal is sent to timestamper 1 + TS2 signal is sent to timestamper 2 + IRIG signal is sent to the IRIG-B module + DCF signal is sent to the DCF module + ===== ================================================ + +What: /sys/class/timecard/ocpN/available_sma_outputs +Date: May 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Set of available sources for a SMA output signal. + + ===== ================================================ + 10Mhz output is from the 10Mhz reference clock + PHC output PPS is from the PHC clock + MAC output PPS is from the Miniature Atomic Clock + GNSS output PPS is from the GNSS module + GNSS2 output PPS is from the second GNSS module + IRIG output is from the PHC, in IRIG-B format + DCF output is from the PHC, in DCF format + ===== ================================================ + +What: /sys/class/timecard/ocpN/clock_source +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RW) Contains the current synchronization source used by + the PHC. May be changed by writing one of the listed + values from the available_clock_sources attribute set. + +What: /sys/class/timecard/ocpN/gnss_sync +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Indicates whether a valid GNSS signal is received, + or when the signal was lost. + +What: /sys/class/timecard/ocpN/i2c +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: This optional attribute links to the associated i2c device. + +What: /sys/class/timecard/ocpN/irig_b_mode +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RW) An integer from 0-7 indicating the timecode format + of the IRIG-B output signal: B00<n> + +What: /sys/class/timecard/ocpN/pps +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: This optional attribute links to the associated PPS device. + +What: /sys/class/timecard/ocpN/ptp +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: This attribute links to the associated PTP device. + +What: /sys/class/timecard/ocpN/serialnum +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RO) Provides the serial number of the timecard. + +What: /sys/class/timecard/ocpN/sma1 +What: /sys/class/timecard/ocpN/sma2 +What: /sys/class/timecard/ocpN/sma3 +What: /sys/class/timecard/ocpN/sma4 +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RW) These attributes specify the direction of the signal + on the associated SMA connectors, and also the signal sink + or source. + + The display format of the attribute is a space separated + list of signals, prefixed by the input/output direction. + + The signal direction may be changed (if supported) by + prefixing the signal list with either "in:" or "out:". + If neither prefix is present, then the direction is unchanged. + + The output signal may be changed by writing one of the listed + values from the available_sma_outputs attribute set. + + The input destinations may be changed by writing multiple + values from the available_sma_inputs attribute set, + separated by spaces. If there are duplicated input + destinations between connectors, the lowest numbered SMA + connector is given priority. + + Note that not all input combinations may make sense. + + The 10Mhz reference clock input is currently only valid + on SMA1 and may not be combined with other destination sinks. + +What: /sys/class/timecard/ocpN/ts_window_adjust +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RW) When retrieving the PHC with the PTP SYS_OFFSET_EXTENDED + ioctl, a system timestamp is made before and after the PHC + time is retrieved. The midpoint between the two system + timestamps is usually taken to be the SYS time associated + with the PHC time. This estimate may be wrong, as it depends + on PCI latencies, and when the PHC time was latched + + The attribute value reduces the end timestamp by the given + number of nanoseconds, so the computed midpoint matches the + retrieved PHC time. + + The initial value is set based on measured PCI latency and + the estimated point where the FPGA latches the PHC time. This + value may be changed by writing an unsigned integer. + +What: /sys/class/timecard/ocpN/ttyGNSS +What: /sys/class/timecard/ocpN/ttyGNSS2 +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: These optional attributes link to the TTY serial ports + associated with the GNSS devices. + +What: /sys/class/timecard/ocpN/ttyMAC +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: This optional attribute links to the TTY serial port + associated with the Miniature Atomic Clock. + +What: /sys/class/timecard/ocpN/ttyNMEA +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: This optional attribute links to the TTY serial port + which outputs the PHC time in NMEA ZDA format. + +What: /sys/class/timecard/ocpN/utc_tai_offset +Date: September 2021 +Contact: Jonathan Lemon <jonathan.lemon@gmail.com> +Description: (RW) The DCF and IRIG output signals are in UTC, while the + TimeCard operates on TAI. This attribute allows setting the + offset in seconds, which is added to the TAI timebase for + these formats. + + The offset may be changed by writing an unsigned integer. |