drivers/acpi/nfit/core.c

File Facts

System

Linux kernel

Corpus path

drivers/acpi/nfit/core.c

Extension

.c

Size

97356 bytes

Lines

3589

Domain

Driver Families

Bucket

drivers/acpi

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• 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/platform_device.h
• linux/list_sort.h
• linux/libnvdimm.h
• linux/module.h
• linux/nospec.h
• linux/mutex.h
• linux/ndctl.h
• linux/sysfs.h
• linux/delay.h
• linux/list.h
• linux/acpi.h
• linux/sort.h
• linux/io.h
• linux/nd.h
• asm/cacheflush.h
• acpi/nfit.h
• intel.h
• nfit.h
• linux/io-64-nonatomic-hi-lo.h

Detected Declarations

• struct nfit_table_prev
• struct nfit_set_info
• struct nfit_set_info2
• enum nfit_aux_cmds
• function xlat_bus_status
• function xlat_nvdimm_status
• function xlat_status
• function nfit_dsm_revid
• function payload_dumpable
• function cmd_to_func
• function acpi_nfit_ctl
• function nfit_spa_type
• function sizeof_spa
• function add_spa
• function list_for_each_entry
• function add_memdev
• function list_for_each_entry
• function nfit_get_smbios_id
• function list_for_each_entry
• function sizeof_dcr
• function add_dcr
• function list_for_each_entry
• function add_bdw
• function sizeof_idt
• function add_idt
• function list_for_each_entry
• function sizeof_flush
• function add_flush
• function list_for_each_entry
• function add_platform_cap
• function __nfit_mem_init
• function list_for_each_entry
• function list_for_each_entry
• function list_for_each_entry
• function list_for_each_entry
• function nfit_mem_cmp
• function nfit_mem_init
• function MEMDEV
• function bus_dsm_mask_show
• function revision_show
• function hw_error_scrub_show
• function hw_error_scrub_store
• function scrub_show
• function scrub_store
• function ars_supported
• function nfit_visible
• function handle_show
• function phys_id_show

Annotated Snippet

module_init(nfit_init);
module_exit(nfit_exit);
MODULE_DESCRIPTION("ACPI NVDIMM Firmware Interface Table (NFIT) driver");
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Intel Corporation");

Annotation

• Immediate include surface: `linux/platform_device.h`, `linux/list_sort.h`, `linux/libnvdimm.h`, `linux/module.h`, `linux/nospec.h`, `linux/mutex.h`, `linux/ndctl.h`, `linux/sysfs.h`.
• Detected declarations: `struct nfit_table_prev`, `struct nfit_set_info`, `struct nfit_set_info2`, `enum nfit_aux_cmds`, `function xlat_bus_status`, `function xlat_nvdimm_status`, `function xlat_status`, `function nfit_dsm_revid`, `function payload_dumpable`, `function cmd_to_func`.
• Atlas domain: Driver Families / drivers/acpi.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.