mirror of
https://github.com/brain-hackers/linux-brain.git
synced 2024-06-09 23:36:23 +09:00
8e84b2d1f0
This patch adds support to set power-shifting-ratio which hints the firmware how to distribute/throttle power between different entities in a system (e.g CPU v/s GPU). This ratio is used by OCC for power capping algorithm. Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
19 lines
706 B
Plaintext
19 lines
706 B
Plaintext
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.
|