Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon

Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon

File Facts

System
Linux kernel
Corpus path
Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
Extension
[no extension]
Size
10999 bytes
Lines
309
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: Documentation
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_max
Date:		September 2023
KernelVersion:	6.5
Contact:	intel-xe@lists.freedesktop.org
Description:	RW. Card reactive sustained  (PL1) power limit in microwatts.

		The power controller will throttle the operating frequency
		if the power averaged over a window (typically seconds)
		exceeds this limit. A read value of 0 means that the PL1
		power limit is disabled, writing 0 disables the
		limit. Writing values > 0 and <= TDP will enable the power limit.

		Only supported for particular Intel Xe graphics platforms.

What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_rated_max
Date:		September 2023
KernelVersion:	6.5
Contact:	intel-xe@lists.freedesktop.org
Description:	RO. Card default power limit (default TDP setting).

		Only supported for particular Intel Xe graphics platforms.


What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/energy1_input
Date:		September 2023
KernelVersion:	6.5
Contact:	intel-xe@lists.freedesktop.org
Description:	RO. Card energy input of device in microjoules.

		Only supported for particular Intel Xe graphics platforms.

What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_max_interval
Date:		October 2023
KernelVersion:	6.6
Contact:	intel-xe@lists.freedesktop.org
Description:	RW. Card sustained power limit interval (Tau in PL1/Tau) in
		milliseconds over which sustained power is averaged.

		Only supported for particular Intel Xe graphics platforms.

What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_max
Date:		February 2024
KernelVersion:	6.8
Contact:	intel-xe@lists.freedesktop.org
Description:	RW. Package reactive sustained  (PL1) power limit in microwatts.

		The power controller will throttle the operating frequency
		if the power averaged over a window (typically seconds)
		exceeds this limit. A read value of 0 means that the PL1
		power limit is disabled, writing 0 disables the
		limit. Writing values > 0 and <= TDP will enable the power limit.

		Only supported for particular Intel Xe graphics platforms.

What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_rated_max
Date:		February 2024
KernelVersion:	6.8
Contact:	intel-xe@lists.freedesktop.org
Description:	RO. Package default power limit (default TDP setting).

		Only supported for particular Intel Xe graphics platforms.

What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_crit
Date:		May 2025
KernelVersion:	6.15
Contact:	intel-xe@lists.freedesktop.org
Description:	RW. Card reactive critical (I1) power limit in microwatts.

		Card reactive critical (I1) power limit in microwatts is exposed
		for client products. The power controller will throttle the

Annotation

Implementation Notes