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| author | Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> | 2017-08-10 05:31:18 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-08-10 14:39:53 +0200 |
| commit | cb8b340de21e1c57e1c6d4f26ccc4af46a3ed559 (patch) | |
| tree | 8f6e572060c3a724d4a6add5f558bf0417d05177 /Documentation | |
| parent | powerpc/pseries: Don't print failure message in energy driver (diff) | |
| download | linux-cb8b340de21e1c57e1c6d4f26ccc4af46a3ed559.tar.xz linux-cb8b340de21e1c57e1c6d4f26ccc4af46a3ed559.zip | |
powerpc/powernv: Add support for powercap framework
Adds a generic powercap framework to change the system powercap
inband through OPAL-OCC command/response interface.
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-firmware-opal-powercap | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-firmware-opal-powercap b/Documentation/ABI/testing/sysfs-firmware-opal-powercap new file mode 100644 index 000000000000..c9b66ec4f165 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-firmware-opal-powercap @@ -0,0 +1,31 @@ +What: /sys/firmware/opal/powercap +Date: August 2017 +Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org> +Description: Powercap directory for Powernv (P8, P9) servers + + Each folder in this directory contains a + power-cappable component. + +What: /sys/firmware/opal/powercap/system-powercap + /sys/firmware/opal/powercap/system-powercap/powercap-min + /sys/firmware/opal/powercap/system-powercap/powercap-max + /sys/firmware/opal/powercap/system-powercap/powercap-current +Date: August 2017 +Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org> +Description: System powercap directory and attributes applicable for + Powernv (P8, P9) servers + + This directory provides powercap information. It + contains below sysfs attributes: + + - powercap-min : This file provides the minimum + possible powercap in Watt units + + - powercap-max : This file provides the maximum + possible powercap in Watt units + + - powercap-current : This file provides the current + powercap set on the system. Writing to this file + creates a request for setting a new-powercap. The + powercap requested must be between powercap-min + and powercap-max. |