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- Kernel driver fam15h_power
- ==========================
- Supported chips:
- * AMD Family 15h Processors
- Prefix: 'fam15h_power'
- Addresses scanned: PCI space
- Datasheets:
- BIOS and Kernel Developer's Guide (BKDG) For AMD Family 15h Processors
- (not yet published)
- Author: Andreas Herrmann <andreas.herrmann3@amd.com>
- Description
- -----------
- This driver permits reading of registers providing power information
- of AMD Family 15h processors.
- For AMD Family 15h processors the following power values can be
- calculated using different processor northbridge function registers:
- * BasePwrWatts: Specifies in watts the maximum amount of power
- consumed by the processor for NB and logic external to the core.
- * ProcessorPwrWatts: Specifies in watts the maximum amount of power
- the processor can support.
- * CurrPwrWatts: Specifies in watts the current amount of power being
- consumed by the processor.
- This driver provides ProcessorPwrWatts and CurrPwrWatts:
- * power1_crit (ProcessorPwrWatts)
- * power1_input (CurrPwrWatts)
- On multi-node processors the calculated value is for the entire
- package and not for a single node. Thus the driver creates sysfs
- attributes only for internal node0 of a multi-node processor.
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