drivers/hwmon/fam15h_power.c

File Facts

System

Linux kernel

Corpus path

drivers/hwmon/fam15h_power.c

Extension

.c

Size

12777 bytes

Lines

500

Domain

Driver Families

Bucket

drivers/hwmon

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/err.h
• linux/hwmon.h
• linux/hwmon-sysfs.h
• linux/init.h
• linux/module.h
• linux/pci.h
• linux/bitops.h
• linux/cpu.h
• linux/cpumask.h
• linux/time.h
• linux/sched.h
• linux/topology.h
• asm/processor.h
• asm/cpuid/api.h
• asm/msr.h

Detected Declarations

• struct fam15h_power_data
• function is_carrizo_or_later
• function power1_input_show
• function power1_crit_show
• function do_read_registers_on_cu
• function read_registers
• function for_each_online_cpu
• function power1_average_show
• function power1_average_interval_show
• function power1_average_interval_store
• function fam15h_power_init_attrs
• function should_load_on_this_node
• function tweak_runavg_range
• function fam15h_power_resume
• function fam15h_power_init_data
• function fam15h_power_probe

Annotated Snippet

static struct pci_driver fam15h_power_driver = {
	.name = "fam15h_power",
	.id_table = fam15h_power_id_table,
	.probe = fam15h_power_probe,
	.driver.pm = &fam15h_power_ops,
};

module_pci_driver(fam15h_power_driver);

Annotation

• Immediate include surface: `linux/err.h`, `linux/hwmon.h`, `linux/hwmon-sysfs.h`, `linux/init.h`, `linux/module.h`, `linux/pci.h`, `linux/bitops.h`, `linux/cpu.h`.
• Detected declarations: `struct fam15h_power_data`, `function is_carrizo_or_later`, `function power1_input_show`, `function power1_crit_show`, `function do_read_registers_on_cu`, `function read_registers`, `function for_each_online_cpu`, `function power1_average_show`, `function power1_average_interval_show`, `function power1_average_interval_store`.
• Atlas domain: Driver Families / drivers/hwmon.
• Implementation status: pattern implementation candidate.

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.