diff options
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-power | 43 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-power-gaokun | 27 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-devices-system-cpu | 62 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon | 24 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-firmware-acpi | 21 |
5 files changed, 176 insertions, 1 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power index 2a5c1a09a28f..560124cc3177 100644 --- a/Documentation/ABI/testing/sysfs-class-power +++ b/Documentation/ABI/testing/sysfs-class-power @@ -822,3 +822,46 @@ Description: Each entry is a link to the device which registered the extension. Access: Read + +What: /sys/class/power_supply/max8971-charger/fast_charge_timer +Date: May 2025 +KernelVersion: 6.15.0 +Contact: Svyatoslav Ryhel <clamor95@gmail.com> +Description: + This entry shows and sets the maximum time the max8971 + charger operates in fast-charge mode. When the timer expires + the device will terminate fast-charge mode (charging current + will drop to 0 A) and will trigger interrupt. + + Valid values: + + - 4 - 10 (hours), step by 1 + - 0: disabled. + +What: /sys/class/power_supply/max8971-charger/top_off_threshold_current +Date: May 2025 +KernelVersion: 6.15.0 +Contact: Svyatoslav Ryhel <clamor95@gmail.com> +Description: + This entry shows and sets the charging current threshold for + entering top-off charging mode. When charging current in fast + charge mode drops below this value, the charger will trigger + interrupt and start top-off charging mode. + + Valid values: + + - 50000 - 200000 (microamps), step by 50000 (rounded down) + +What: /sys/class/power_supply/max8971-charger/top_off_timer +Date: May 2025 +KernelVersion: 6.15.0 +Contact: Svyatoslav Ryhel <clamor95@gmail.com> +Description: + This entry shows and sets the maximum time the max8971 + charger operates in top-off charge mode. When the timer expires + the device will terminate top-off charge mode (charging current + will drop to 0 A) and will trigger interrupt. + + Valid values: + + - 0 - 70 (minutes), step by 10 (rounded down) diff --git a/Documentation/ABI/testing/sysfs-class-power-gaokun b/Documentation/ABI/testing/sysfs-class-power-gaokun new file mode 100644 index 000000000000..0633aed7b355 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-power-gaokun @@ -0,0 +1,27 @@ +What: /sys/class/power_supply/gaokun-ec-battery/smart_charge_delay +Date: March 2025 +KernelVersion: 6.15 +Contact: Pengyu Luo <mitltlatltl@gmail.com> +Description: + This entry allows configuration of smart charging delay. + + Smart charging behavior: when the power adapter is connected + for delay hours, battery charging will follow the rules of + charge_control_start_threshold and charge_control_end_threshold. + For more information about charge control, please refer to + sysfs-class-power. + + Access: Read, Write + + Valid values: In hours (non-negative) + +What: /sys/class/power_supply/gaokun-ec-battery/battery_adaptive_charge +Date: March 2025 +KernelVersion: 6.15 +Contact: Pengyu Luo <mitltlatltl@gmail.com> +Description: + This entry allows enabling battery adaptive charging. + + Access: Read, Write + + Valid values: 0 (disabled) or 1 (enabled) diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 7772d4f034d2..bf85f4de6862 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -111,6 +111,7 @@ What: /sys/devices/system/cpu/cpuidle/available_governors /sys/devices/system/cpu/cpuidle/current_driver /sys/devices/system/cpu/cpuidle/current_governor /sys/devices/system/cpu/cpuidle/current_governer_ro + /sys/devices/system/cpu/cpuidle/intel_c1_demotion Date: September 2007 Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org> Description: Discover cpuidle policy and mechanism @@ -132,7 +133,11 @@ Description: Discover cpuidle policy and mechanism current_governor_ro: (RO) displays current idle policy. - See Documentation/admin-guide/pm/cpuidle.rst and + intel_c1_demotion: (RW) enables/disables the C1 demotion + feature on Intel CPUs. + + See Documentation/admin-guide/pm/cpuidle.rst, + Documentation/admin-guide/pm/intel_idle.rst, and Documentation/driver-api/pm/cpuidle.rst for more information. @@ -268,6 +273,60 @@ Description: Discover CPUs in the same CPU frequency coordination domain This file is only present if the acpi-cpufreq or the cppc-cpufreq drivers are in use. +What: /sys/devices/system/cpu/cpuX/cpufreq/auto_select +Date: May 2025 +Contact: linux-pm@vger.kernel.org +Description: Autonomous selection enable + + Read/write interface to control autonomous selection enable + Read returns autonomous selection status: + 0: autonomous selection is disabled + 1: autonomous selection is enabled + + Write 'y' or '1' or 'on' to enable autonomous selection. + Write 'n' or '0' or 'off' to disable autonomous selection. + + This file is only present if the cppc-cpufreq driver is in use. + +What: /sys/devices/system/cpu/cpuX/cpufreq/auto_act_window +Date: May 2025 +Contact: linux-pm@vger.kernel.org +Description: Autonomous activity window + + This file indicates a moving utilization sensitivity window to + the platform's autonomous selection policy. + + Read/write an integer represents autonomous activity window (in + microseconds) from/to this file. The max value to write is + 1270000000 but the max significand is 127. This means that if 128 + is written to this file, 127 will be stored. If the value is + greater than 130, only the first two digits will be saved as + significand. + + Writing a zero value to this file enable the platform to + determine an appropriate Activity Window depending on the workload. + + Writing to this file only has meaning when Autonomous Selection is + enabled. + + This file is only present if the cppc-cpufreq driver is in use. + +What: /sys/devices/system/cpu/cpuX/cpufreq/energy_performance_preference_val +Date: May 2025 +Contact: linux-pm@vger.kernel.org +Description: Energy performance preference + + Read/write an 8-bit integer from/to this file. This file + represents a range of values from 0 (performance preference) to + 0xFF (energy efficiency preference) that influences the rate of + performance increase/decrease and the result of the hardware's + energy efficiency and performance optimization policies. + + Writing to this file only has meaning when Autonomous Selection is + enabled. + + This file is only present if the cppc-cpufreq driver is in use. + What: /sys/devices/system/cpu/cpu*/cache/index3/cache_disable_{0,1} Date: August 2008 @@ -485,6 +544,7 @@ What: /sys/devices/system/cpu/cpuX/regs/ /sys/devices/system/cpu/cpuX/regs/identification/ /sys/devices/system/cpu/cpuX/regs/identification/midr_el1 /sys/devices/system/cpu/cpuX/regs/identification/revidr_el1 + /sys/devices/system/cpu/cpuX/regs/identification/aidr_el1 /sys/devices/system/cpu/cpuX/regs/identification/smidr_el1 Date: June 2016 Contact: Linux ARM Kernel Mailing list <linux-arm-kernel@lists.infradead.org> diff --git a/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon b/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon index cb207c79680d..4ca917ac6382 100644 --- a/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon +++ b/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon @@ -124,3 +124,27 @@ Contact: intel-xe@lists.freedesktop.org Description: RO. VRAM temperature in millidegree Celsius. Only supported for particular Intel Xe graphics platforms. + +What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/fan1_input +Date: March 2025 +KernelVersion: 6.16 +Contact: intel-xe@lists.freedesktop.org +Description: RO. Fan 1 speed in RPM. + + Only supported for particular Intel Xe graphics platforms. + +What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/fan2_input +Date: March 2025 +KernelVersion: 6.16 +Contact: intel-xe@lists.freedesktop.org +Description: RO. Fan 2 speed in RPM. + + Only supported for particular Intel Xe graphics platforms. + +What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/fan3_input +Date: March 2025 +KernelVersion: 6.16 +Contact: intel-xe@lists.freedesktop.org +Description: RO. Fan 3 speed in RPM. + + Only supported for particular Intel Xe graphics platforms. diff --git a/Documentation/ABI/testing/sysfs-firmware-acpi b/Documentation/ABI/testing/sysfs-firmware-acpi index 5249ad5a96d9..f4de60c4134d 100644 --- a/Documentation/ABI/testing/sysfs-firmware-acpi +++ b/Documentation/ABI/testing/sysfs-firmware-acpi @@ -248,3 +248,24 @@ Description: # cat ff_pwr_btn 7 enabled +What: /sys/firmware/acpi/memory_ranges/rangeX +Date: February 2025 +Contact: Tony Luck <tony.luck@intel.com> +Description: + On systems with the ACPI MRRM table reports the parameters for + each range. + + base: Starting system physical address. + + length: Length of this range in bytes. + + node: NUMA node that this range belongs to. Negative numbers + indicate that the node number could not be determined (e.g + for an address range that is reserved for future hot add of + memory). + + local_region_id: ID associated with access by agents + local to this range of addresses. + + remote_region_id: ID associated with access by agents + non-local to this range of addresses. |