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SDK_SG200x_V2/linux_5.10/Documentation/ABI/testing/sysfs-firmware-opal-psr
carbon 0545e9dc6d init version 2024-05-07
commit d1edce71135cc6d98c0a4b5729774542b676e769
Author: sophgo-forum-service <forum_service@sophgo.com>
Date:   Fri Mar 15 16:07:33 2024 +0800

    [fix] recommend using ssh method to clone repo.
    [fix] fix sensor driver repo branch name.
2024-05-07 19:36:36 +08:00

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What: /sys/firmware/opal/psr
Date: August 2017
Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
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 <linuxppc-dev@ozlabs.org>
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.