0001 What: /sys/firmware/opal/psr
0002 Date: August 2017
0003 Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
0004 Description: Power-Shift-Ratio directory for Powernv P9 servers
0005
0006 Power-Shift-Ratio allows to provide hints the firmware
0007 to shift/throttle power between different entities in
0008 the system. Each attribute in this directory indicates
0009 a settable PSR.
0010
0011 What: /sys/firmware/opal/psr/cpu_to_gpu_X
0012 Date: August 2017
0013 Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
0014 Description: PSR sysfs attributes for Powernv P9 servers
0015
0016 Power-Shift-Ratio between CPU and GPU for a given chip
0017 with chip-id X. This file gives the ratio (0-100)
0018 which is used by OCC for power-capping.
