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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /Documentation/ABI/testing/sysfs-firmware-opal-psr
parentInitial commit. (diff)
downloadlinux-c109f8d9e922037b3fa45f46d78384d49db8ad76.tar.xz
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Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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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.