drivers/fpga/fpga-region.c

Source file repositories/reference/linux-study-clean/drivers/fpga/fpga-region.c

File Facts

System: Linux kernel
Corpus path: drivers/fpga/fpga-region.c
Extension: .c
Size: 7782 bytes
Lines: 323
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/fpga/fpga-bridge.h
linux/fpga/fpga-mgr.h
linux/fpga/fpga-region.h
linux/idr.h
linux/kernel.h
linux/list.h
linux/module.h
linux/slab.h
linux/spinlock.h

Detected Declarations

function fpga_region_class_find
function fpga_region_put
function fpga_region_put
function info
function compat_id_show
function __fpga_region_register_full
function fpga_region_register_full
function fpga_region_unregister
function fpga_region_dev_release
function fpga_region_init
function fpga_region_exit
module init fpga_region_init
export fpga_region_class_find
export fpga_region_program_fpga
export __fpga_region_register_full
export __fpga_region_register
export fpga_region_unregister

Annotated Snippet

subsys_initcall(fpga_region_init);
module_exit(fpga_region_exit);

MODULE_DESCRIPTION("FPGA Region");
MODULE_AUTHOR("Alan Tull <atull@kernel.org>");
MODULE_LICENSE("GPL v2");

Annotation

Immediate include surface: `linux/fpga/fpga-bridge.h`, `linux/fpga/fpga-mgr.h`, `linux/fpga/fpga-region.h`, `linux/idr.h`, `linux/kernel.h`, `linux/list.h`, `linux/module.h`, `linux/slab.h`.
Detected declarations: `function fpga_region_class_find`, `function fpga_region_put`, `function fpga_region_put`, `function info`, `function compat_id_show`, `function __fpga_region_register_full`, `function fpga_region_register_full`, `function fpga_region_unregister`, `function fpga_region_dev_release`, `function fpga_region_init`.
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.