^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) What: /sys/firmware/opal/powercap
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) Date: August 2017
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) Description: Powercap directory for Powernv (P8, P9) servers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) Each folder in this directory contains a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) power-cappable component.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) What: /sys/firmware/opal/powercap/system-powercap
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) /sys/firmware/opal/powercap/system-powercap/powercap-min
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) /sys/firmware/opal/powercap/system-powercap/powercap-max
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) /sys/firmware/opal/powercap/system-powercap/powercap-current
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) Date: August 2017
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) Description: System powercap directory and attributes applicable for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) Powernv (P8, P9) servers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) This directory provides powercap information. It
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) contains below sysfs attributes:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) - powercap-min : This file provides the minimum
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) possible powercap in Watt units
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) - powercap-max : This file provides the maximum
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) possible powercap in Watt units
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) - powercap-current : This file provides the current
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) powercap set on the system. Writing to this file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) creates a request for setting a new-powercap. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) powercap requested must be between powercap-min
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) and powercap-max.