What:		/sys/bus/pci/drivers/intel_vpu/.../npu_busy_time_us
Date:		May 2024
KernelVersion:	6.11
Contact:	dri-devel@lists.freedesktop.org
Description:	Time in microseconds that the device spent executing jobs. The time is
		counted when and only when there are jobs submitted to firmware. This time
		can be used to measure the utilization of NPU, either by calculating the
		difference between two timepoints or monitoring utilization percentage by
		reading periodically. Recommended read period is 1 second to avoid impact
		on job submission performance. Read-only.

What:		/sys/bus/pci/drivers/intel_vpu/.../npu_memory_utilization
Date:		Jan 2025
KernelVersion:	6.15
Contact:	dri-devel@lists.freedesktop.org
Description:	Current NPU memory utilization in bytes. Reports the total size of all
		resident buffer objects allocated for NPU use. Read-only.

What:		/sys/bus/pci/drivers/intel_vpu/.../freq/hw_min_freq
Date:		April 2026
KernelVersion:	7.2
Contact:	dri-devel@lists.freedesktop.org
Description:	Minimum frequency in MHz supported by the NPU hardware. This is a
		hardware capability and cannot be changed. Read-only.

What:		/sys/bus/pci/drivers/intel_vpu/.../freq/hw_efficient_freq
Date:		April 2026
KernelVersion:	7.2
Contact:	dri-devel@lists.freedesktop.org
Description:	Most efficient operating frequency in MHz for the NPU. This represents
		the frequency at which the NPU operates most efficiently in terms of power
		and performance. Read-only.

What:		/sys/bus/pci/drivers/intel_vpu/.../freq/hw_max_freq
Date:		April 2026
KernelVersion:	7.2
Contact:	dri-devel@lists.freedesktop.org
Description:	Maximum frequency in MHz supported by the NPU hardware. This is a
		hardware capability and cannot be changed. Read-only.

What:		/sys/bus/pci/drivers/intel_vpu/.../freq/current_freq
Date:		April 2026
KernelVersion:	7.2
Contact:	dri-devel@lists.freedesktop.org
Description:	Current operating frequency in MHz of the NPU. The value is valid only
		when the device is active; returns 0 when idle. The actual frequency may
		be lower than the requested range due to power or thermal constraints.
		Read-only.

What:		/sys/bus/pci/drivers/intel_vpu/.../freq/set_min_freq
Date:		April 2026
KernelVersion:	7.2
Contact:	dri-devel@lists.freedesktop.org
Description:	Configured minimum operating frequency in MHz (50XX devices and newer).
		Values written are clamped to hardware limits (hw_min_freq to hw_max_freq).
		If set_min_freq exceeds set_max_freq, the driver clamps set_min_freq to
		set_max_freq when selecting the operating frequency. Read-write.

What:		/sys/bus/pci/drivers/intel_vpu/.../freq/set_max_freq
Date:		April 2026
KernelVersion:	7.2
Contact:	dri-devel@lists.freedesktop.org
Description:	Configured maximum operating frequency in MHz (50XX devices and newer).
		Values written are clamped to hardware limits (hw_min_freq to hw_max_freq).
		Read-write.