1cb8b340dSShilpasri G BhatWhat: /sys/firmware/opal/powercap 2cb8b340dSShilpasri G BhatDate: August 2017 3*fae57306SStephen RothwellContact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org> 4cb8b340dSShilpasri G BhatDescription: Powercap directory for Powernv (P8, P9) servers 5cb8b340dSShilpasri G Bhat 6cb8b340dSShilpasri G Bhat Each folder in this directory contains a 7cb8b340dSShilpasri G Bhat power-cappable component. 8cb8b340dSShilpasri G Bhat 9cb8b340dSShilpasri G BhatWhat: /sys/firmware/opal/powercap/system-powercap 10cb8b340dSShilpasri G Bhat /sys/firmware/opal/powercap/system-powercap/powercap-min 11cb8b340dSShilpasri G Bhat /sys/firmware/opal/powercap/system-powercap/powercap-max 12cb8b340dSShilpasri G Bhat /sys/firmware/opal/powercap/system-powercap/powercap-current 13cb8b340dSShilpasri G BhatDate: August 2017 14*fae57306SStephen RothwellContact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org> 15cb8b340dSShilpasri G BhatDescription: System powercap directory and attributes applicable for 16cb8b340dSShilpasri G Bhat Powernv (P8, P9) servers 17cb8b340dSShilpasri G Bhat 18cb8b340dSShilpasri G Bhat This directory provides powercap information. It 19cb8b340dSShilpasri G Bhat contains below sysfs attributes: 20cb8b340dSShilpasri G Bhat 21cb8b340dSShilpasri G Bhat - powercap-min : This file provides the minimum 22cb8b340dSShilpasri G Bhat possible powercap in Watt units 23cb8b340dSShilpasri G Bhat 24cb8b340dSShilpasri G Bhat - powercap-max : This file provides the maximum 25cb8b340dSShilpasri G Bhat possible powercap in Watt units 26cb8b340dSShilpasri G Bhat 27cb8b340dSShilpasri G Bhat - powercap-current : This file provides the current 28cb8b340dSShilpasri G Bhat powercap set on the system. Writing to this file 29cb8b340dSShilpasri G Bhat creates a request for setting a new-powercap. The 30cb8b340dSShilpasri G Bhat powercap requested must be between powercap-min 31cb8b340dSShilpasri G Bhat and powercap-max. 32