drivers/perf/marvell_cn10k_tad_pmu.c

File Facts

System

Linux kernel

Corpus path

drivers/perf/marvell_cn10k_tad_pmu.c

Extension

.c

Size

12953 bytes

Lines

497

Domain

Driver Families

Bucket

drivers/perf

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.
• 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/io.h
• linux/module.h
• linux/of.h
• linux/cpuhotplug.h
• linux/perf_event.h
• linux/platform_device.h
• linux/acpi.h

Detected Declarations

• struct tad_region
• struct tad_pmu
• struct tad_pmu_data
• enum mrvl_tad_pmu_version
• function tad_pmu_event_counter_read
• function tad_pmu_event_counter_stop
• function tad_pmu_event_counter_start
• function tad_pmu_event_counter_del
• function tad_pmu_event_counter_add
• function tad_pmu_event_init
• function tad_pmu_event_show
• function tad_pmu_cpumask_show
• function tad_pmu_probe
• function tad_pmu_remove
• function tad_pmu_offline_cpu
• function tad_pmu_init
• function tad_pmu_exit
• module init tad_pmu_init

Annotated Snippet

module_init(tad_pmu_init);
module_exit(tad_pmu_exit);

MODULE_DESCRIPTION("Marvell CN10K LLC-TAD Perf driver");
MODULE_AUTHOR("Bhaskara Budiredla <bbudiredla@marvell.com>");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/io.h`, `linux/module.h`, `linux/of.h`, `linux/cpuhotplug.h`, `linux/perf_event.h`, `linux/platform_device.h`, `linux/acpi.h`.
• Detected declarations: `struct tad_region`, `struct tad_pmu`, `struct tad_pmu_data`, `enum mrvl_tad_pmu_version`, `function tad_pmu_event_counter_read`, `function tad_pmu_event_counter_stop`, `function tad_pmu_event_counter_start`, `function tad_pmu_event_counter_del`, `function tad_pmu_event_counter_add`, `function tad_pmu_event_init`.
• Atlas domain: Driver Families / drivers/perf.
• 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.