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- What: /sys/firmware/opal/psr
- Date: August 2017
- Contact: Linux for PowerPC mailing list <[email protected]>
- Description: Power-Shift-Ratio directory for Powernv P9 servers
- Power-Shift-Ratio allows to provide hints the firmware
- to shift/throttle power between different entities in
- the system. Each attribute in this directory indicates
- a settable PSR.
- What: /sys/firmware/opal/psr/cpu_to_gpu_X
- Date: August 2017
- Contact: Linux for PowerPC mailing list <[email protected]>
- Description: PSR sysfs attributes for Powernv P9 servers
- Power-Shift-Ratio between CPU and GPU for a given chip
- with chip-id X. This file gives the ratio (0-100)
- which is used by OCC for power-capping.
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