Documentation/ABI/testing/sysfs-firmware-opal-powercap
Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-firmware-opal-powercap
File Facts
- System
- Linux kernel
- Corpus path
Documentation/ABI/testing/sysfs-firmware-opal-powercap- Extension
[no extension]- Size
- 1176 bytes
- Lines
- 32
- Domain
- Support Tooling And Documentation
- Bucket
- Documentation
- Inferred role
- Support Tooling And Documentation: Documentation
- Status
- atlas-only
Why This File Exists
Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
What: /sys/firmware/opal/powercap
Date: August 2017
Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.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@lists.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.Annotation
- Atlas domain: Support Tooling And Documentation / Documentation.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.