drivers/cpufreq/pmac64-cpufreq.c

File Facts

System

Linux kernel

Corpus path

drivers/cpufreq/pmac64-cpufreq.c

Extension

.c

Size

17938 bytes

Lines

675

Domain

Driver Families

Bucket

drivers/cpufreq

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/types.h
• linux/errno.h
• linux/kernel.h
• linux/delay.h
• linux/sched.h
• linux/cpufreq.h
• linux/init.h
• linux/completion.h
• linux/mutex.h
• linux/of.h
• asm/machdep.h
• asm/irq.h
• asm/sections.h
• asm/cputable.h
• asm/time.h
• asm/smu.h
• asm/pmac_pfunc.h

Detected Declarations

• function g5_smu_switch_volt
• function g5_vdnap_switch_volt
• function g5_scom_switch_freq
• function g5_scom_query_freq
• function g5_dummy_switch_volt
• function g5_pfunc_switch_volt
• function g5_pfunc_switch_freq
• function g5_pfunc_query_freq
• function g5_cpufreq_target
• function g5_cpufreq_get_speed
• function g5_cpufreq_cpu_init
• function g5_neo2_cpufreq_init
• function g5_pm72_cpufreq_init
• function g5_cpufreq_init
• module init g5_cpufreq_init

Annotated Snippet

module_init(g5_cpufreq_init);


MODULE_DESCRIPTION("cpufreq driver for SMU & 970FX based G5 Macs");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/types.h`, `linux/errno.h`, `linux/kernel.h`, `linux/delay.h`, `linux/sched.h`, `linux/cpufreq.h`, `linux/init.h`.
• Detected declarations: `function g5_smu_switch_volt`, `function g5_vdnap_switch_volt`, `function g5_scom_switch_freq`, `function g5_scom_query_freq`, `function g5_dummy_switch_volt`, `function g5_pfunc_switch_volt`, `function g5_pfunc_switch_freq`, `function g5_pfunc_query_freq`, `function g5_cpufreq_target`, `function g5_cpufreq_get_speed`.
• Atlas domain: Driver Families / drivers/cpufreq.
• Implementation status: integration 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.