162306a36Sopenharmony_ciWhat: /sys/firmware/opal/psr 262306a36Sopenharmony_ciDate: August 2017 362306a36Sopenharmony_ciContact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org> 462306a36Sopenharmony_ciDescription: Power-Shift-Ratio directory for Powernv P9 servers 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci Power-Shift-Ratio allows to provide hints the firmware 762306a36Sopenharmony_ci to shift/throttle power between different entities in 862306a36Sopenharmony_ci the system. Each attribute in this directory indicates 962306a36Sopenharmony_ci a settable PSR. 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ciWhat: /sys/firmware/opal/psr/cpu_to_gpu_X 1262306a36Sopenharmony_ciDate: August 2017 1362306a36Sopenharmony_ciContact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org> 1462306a36Sopenharmony_ciDescription: PSR sysfs attributes for Powernv P9 servers 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ci Power-Shift-Ratio between CPU and GPU for a given chip 1762306a36Sopenharmony_ci with chip-id X. This file gives the ratio (0-100) 1862306a36Sopenharmony_ci which is used by OCC for power-capping. 19