Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon

Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon

File Facts

System
Linux kernel
Corpus path
Documentation/ABI/testing/sysfs-driver-intel-i915-hwmon
Extension
[no extension]
Size
3434 bytes
Lines
94
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/i915/.../hwmon/hwmon<i>/in0_input
Date:		February 2023
KernelVersion:	6.2
Contact:	intel-gfx@lists.freedesktop.org
Description:	RO. Current Voltage in millivolt.

		Only supported for particular Intel i915 graphics platforms.

What:		/sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/power1_max
Date:		February 2023
KernelVersion:	6.2
Contact:	intel-gfx@lists.freedesktop.org
Description:	RW. Card reactive sustained  (PL1/Tau) 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 will enable the power limit.

		Only supported for particular Intel i915 graphics platforms.

What:		/sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/power1_rated_max
Date:		February 2023
KernelVersion:	6.2
Contact:	intel-gfx@lists.freedesktop.org
Description:	RO. Card default power limit (default TDP setting).

		Only supported for particular Intel i915 graphics platforms.

What:		/sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/power1_max_interval
Date:		February 2023
KernelVersion:	6.2
Contact:	intel-gfx@lists.freedesktop.org
Description:	RW. Sustained power limit interval (Tau in PL1/Tau) in
		milliseconds over which sustained power is averaged.

		Only supported for particular Intel i915 graphics platforms.

What:		/sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/power1_crit
Date:		February 2023
KernelVersion:	6.2
Contact:	intel-gfx@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
		operating frequency if the power averaged over a window exceeds
		this limit.

		Only supported for particular Intel i915 graphics platforms.

What:		/sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/curr1_crit
Date:		February 2023
KernelVersion:	6.2
Contact:	intel-gfx@lists.freedesktop.org
Description:	RW. Card reactive critical (I1) power limit in milliamperes.

		Card reactive critical (I1) power limit in milliamperes is
		exposed for server products. The power controller will throttle
		the operating frequency if the power averaged over a window
		exceeds this limit.

		Only supported for particular Intel i915 graphics platforms.

What:		/sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/energy1_input
Date:		February 2023
KernelVersion:	6.2
Contact:	intel-gfx@lists.freedesktop.org
Description:	RO. Energy input of device or gt in microjoules.

Annotation

Implementation Notes