blob: c9b66ec4f165d2700653a6d42f6150472dc19e5e [file] [log] [blame]
rjw1f884582022-01-06 17:20:42 +08001What: /sys/firmware/opal/powercap
2Date: August 2017
3Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
4Description: Powercap directory for Powernv (P8, P9) servers
5
6 Each folder in this directory contains a
7 power-cappable component.
8
9What: /sys/firmware/opal/powercap/system-powercap
10 /sys/firmware/opal/powercap/system-powercap/powercap-min
11 /sys/firmware/opal/powercap/system-powercap/powercap-max
12 /sys/firmware/opal/powercap/system-powercap/powercap-current
13Date: August 2017
14Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
15Description: System powercap directory and attributes applicable for
16 Powernv (P8, P9) servers
17
18 This directory provides powercap information. It
19 contains below sysfs attributes:
20
21 - powercap-min : This file provides the minimum
22 possible powercap in Watt units
23
24 - powercap-max : This file provides the maximum
25 possible powercap in Watt units
26
27 - powercap-current : This file provides the current
28 powercap set on the system. Writing to this file
29 creates a request for setting a new-powercap. The
30 powercap requested must be between powercap-min
31 and powercap-max.