drivers/fpga/fpga-mgr.c

File Facts

System

Linux kernel

Corpus path

drivers/fpga/fpga-mgr.c

Extension

.c

Size

26249 bytes

Lines

1011

Domain

Driver Families

Bucket

drivers/fpga

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/firmware.h
• linux/fpga/fpga-mgr.h
• linux/idr.h
• linux/module.h
• linux/of.h
• linux/mutex.h
• linux/slab.h
• linux/scatterlist.h
• linux/highmem.h

Detected Declarations

• struct fpga_mgr_devres
• function fpga_mgr_fpga_remove
• function fpga_mgr_state
• function fpga_mgr_status
• function fpga_mgr_write
• function fpga_mgr_write_complete
• function fpga_mgr_parse_header
• function fpga_mgr_write_init
• function fpga_mgr_write_sg
• function fpga_image_info_free
• function fpga_mgr_parse_header_mapped
• function fpga_mgr_parse_header_sg_first
• function fpga_mgr_parse_header_sg_first
• function fpga_mgr_write_init_buf
• function fpga_mgr_prepare_sg
• function of_fpga_mgr_get
• function fpga_mgr_buf_load_mapped
• function of_fpga_mgr_get
• function of_fpga_mgr_get
• function fpga_mgr_load
• function name_show
• function state_show
• function status_show
• function fpga_mgr_dev_match
• function fpga_mgr_put
• function Manager
• function fpga_mgr_unlock
• function fpga_mgr_unregister
• function fpga_mgr_unregister
• function fpga_mgr_unregister
• function devm_fpga_mgr_unregister
• function fpga_mgr_register_full
• function fpga_mgr_register
• function fpga_mgr_dev_release
• function fpga_mgr_class_init
• function fpga_mgr_class_exit
• module init fpga_mgr_class_init
• export fpga_image_info_alloc
• export fpga_image_info_free
• export fpga_mgr_load
• export fpga_mgr_get
• export of_fpga_mgr_get
• export fpga_mgr_put
• export fpga_mgr_lock
• export fpga_mgr_unlock
• export __fpga_mgr_register_full
• export __fpga_mgr_register
• export fpga_mgr_unregister

Annotated Snippet

subsys_initcall(fpga_mgr_class_init);
module_exit(fpga_mgr_class_exit);

Annotation

• Immediate include surface: `linux/firmware.h`, `linux/fpga/fpga-mgr.h`, `linux/idr.h`, `linux/module.h`, `linux/of.h`, `linux/mutex.h`, `linux/slab.h`, `linux/scatterlist.h`.
• Detected declarations: `struct fpga_mgr_devres`, `function fpga_mgr_fpga_remove`, `function fpga_mgr_state`, `function fpga_mgr_status`, `function fpga_mgr_write`, `function fpga_mgr_write_complete`, `function fpga_mgr_parse_header`, `function fpga_mgr_write_init`, `function fpga_mgr_write_sg`, `function fpga_image_info_free`.
• Atlas domain: Driver Families / drivers/fpga.
• 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.