diff options
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/debugfs-dell-wmi-ddv | 21 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-nvdimm | 14 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-intel_sdsi | 47 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers | 4 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-platform-dell-wmi-ddv | 7 |
5 files changed, 73 insertions, 20 deletions
diff --git a/Documentation/ABI/testing/debugfs-dell-wmi-ddv b/Documentation/ABI/testing/debugfs-dell-wmi-ddv new file mode 100644 index 000000000000..fbcc5d6f7388 --- /dev/null +++ b/Documentation/ABI/testing/debugfs-dell-wmi-ddv @@ -0,0 +1,21 @@ +What: /sys/kernel/debug/dell-wmi-ddv-<wmi_device_name>/fan_sensor_information +Date: September 2022 +KernelVersion: 6.1 +Contact: Armin Wolf <W_Armin@gmx.de> +Description: + This file contains the contents of the fan sensor information buffer, + which contains fan sensor entries and a terminating character (0xFF). + + Each fan sensor entry consists of three bytes with an unknown meaning, + interested people may use this file for reverse-engineering. + +What: /sys/kernel/debug/dell-wmi-ddv-<wmi_device_name>/thermal_sensor_information +Date: September 2022 +KernelVersion: 6.1 +Contact: Armin Wolf <W_Armin@gmx.de> +Description: + This file contains the contents of the thermal sensor information buffer, + which contains thermal sensor entries and a terminating character (0xFF). + + Each thermal sensor entry consists of five bytes with an unknown meaning, + interested people may use this file for reverse-engineering. diff --git a/Documentation/ABI/testing/sysfs-bus-nvdimm b/Documentation/ABI/testing/sysfs-bus-nvdimm index 1c1f5acbf53d..de8c5a59c77f 100644 --- a/Documentation/ABI/testing/sysfs-bus-nvdimm +++ b/Documentation/ABI/testing/sysfs-bus-nvdimm @@ -41,3 +41,17 @@ KernelVersion: 5.18 Contact: Kajol Jain <kjain@linux.ibm.com> Description: (RO) This sysfs file exposes the cpumask which is designated to to retrieve nvdimm pmu event counter data. + +What: /sys/bus/nd/devices/nmemX/cxl/id +Date: November 2022 +KernelVersion: 6.2 +Contact: Dave Jiang <dave.jiang@intel.com> +Description: (RO) Show the id (serial) of the device. This is CXL specific. + +What: /sys/bus/nd/devices/nmemX/cxl/provider +Date: November 2022 +KernelVersion: 6.2 +Contact: Dave Jiang <dave.jiang@intel.com> +Description: (RO) Shows the CXL bridge device that ties to a CXL memory device + to this NVDIMM device. I.e. the parent of the device returned is + a /sys/bus/cxl/devices/memX instance. diff --git a/Documentation/ABI/testing/sysfs-driver-intel_sdsi b/Documentation/ABI/testing/sysfs-driver-intel_sdsi index 96b92c105ec4..f8afed127107 100644 --- a/Documentation/ABI/testing/sysfs-driver-intel_sdsi +++ b/Documentation/ABI/testing/sysfs-driver-intel_sdsi @@ -4,21 +4,21 @@ KernelVersion: 5.18 Contact: "David E. Box" <david.e.box@linux.intel.com> Description: This directory contains interface files for accessing Intel - Software Defined Silicon (SDSi) features on a CPU. X - represents the socket instance (though not the socket ID). - The socket ID is determined by reading the registers file - and decoding it per the specification. + On Demand (formerly Software Defined Silicon or SDSi) features + on a CPU. X represents the socket instance (though not the + socket ID). The socket ID is determined by reading the + registers file and decoding it per the specification. - Some files communicate with SDSi hardware through a mailbox. - Should the operation fail, one of the following error codes - may be returned: + Some files communicate with On Demand hardware through a + mailbox. Should the operation fail, one of the following error + codes may be returned: ========== ===== Error Code Cause ========== ===== EIO General mailbox failure. Log may indicate cause. EBUSY Mailbox is owned by another agent. - EPERM SDSI capability is not enabled in hardware. + EPERM On Demand capability is not enabled in hardware. EPROTO Failure in mailbox protocol detected by driver. See log for details. EOVERFLOW For provision commands, the size of the data @@ -54,8 +54,8 @@ KernelVersion: 5.18 Contact: "David E. Box" <david.e.box@linux.intel.com> Description: (WO) Used to write an Authentication Key Certificate (AKC) to - the SDSi NVRAM for the CPU. The AKC is used to authenticate a - Capability Activation Payload. Mailbox command. + the On Demand NVRAM for the CPU. The AKC is used to authenticate + a Capability Activation Payload. Mailbox command. What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/provision_cap Date: Feb 2022 @@ -63,17 +63,28 @@ KernelVersion: 5.18 Contact: "David E. Box" <david.e.box@linux.intel.com> Description: (WO) Used to write a Capability Activation Payload (CAP) to the - SDSi NVRAM for the CPU. CAPs are used to activate a given CPU - feature. A CAP is validated by SDSi hardware using a previously - provisioned AKC file. Upon successful authentication, the CPU - configuration is updated. A cold reboot is required to fully - activate the feature. Mailbox command. + On Demand NVRAM for the CPU. CAPs are used to activate a given + CPU feature. A CAP is validated by On Demand hardware using a + previously provisioned AKC file. Upon successful authentication, + the CPU configuration is updated. A cold reboot is required to + fully activate the feature. Mailbox command. + +What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/meter_certificate +Date: Nov 2022 +KernelVersion: 6.2 +Contact: "David E. Box" <david.e.box@linux.intel.com> +Description: + (RO) Used to read back the current meter certificate for the CPU + from Intel On Demand hardware. The meter certificate contains + utilization metrics of On Demand enabled features. Mailbox + command. What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/state_certificate Date: Feb 2022 KernelVersion: 5.18 Contact: "David E. Box" <david.e.box@linux.intel.com> Description: - (RO) Used to read back the current State Certificate for the CPU - from SDSi hardware. The State Certificate contains information - about the current licenses on the CPU. Mailbox command. + (RO) Used to read back the current state certificate for the CPU + from On Demand hardware. The state certificate contains + information about the current licenses on the CPU. Mailbox + command. diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers b/Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers index 45985e411f13..721a05b90109 100644 --- a/Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers +++ b/Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers @@ -10,7 +10,7 @@ Description: A collection of all the memory tiers allocated. What: /sys/devices/virtual/memory_tiering/memory_tierN/ - /sys/devices/virtual/memory_tiering/memory_tierN/nodes + /sys/devices/virtual/memory_tiering/memory_tierN/nodelist Date: August 2022 Contact: Linux memory management mailing list <linux-mm@kvack.org> Description: Directory with details of a specific memory tier @@ -21,5 +21,5 @@ Description: Directory with details of a specific memory tier A smaller value of N implies a higher (faster) memory tier in the hierarchy. - nodes: NUMA nodes that are part of this memory tier. + nodelist: NUMA nodes that are part of this memory tier. diff --git a/Documentation/ABI/testing/sysfs-platform-dell-wmi-ddv b/Documentation/ABI/testing/sysfs-platform-dell-wmi-ddv new file mode 100644 index 000000000000..1d97ad615c66 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-dell-wmi-ddv @@ -0,0 +1,7 @@ +What: /sys/class/power_supply/<battery_name>/eppid +Date: September 2022 +KernelVersion: 6.1 +Contact: Armin Wolf <W_Armin@gmx.de> +Description: + Reports the Dell ePPID (electronic Dell Piece Part Identification) + of the ACPI battery. |