drivers/platform/x86/uv_sysfs.c

File Facts

System

Linux kernel

Corpus path

drivers/platform/x86/uv_sysfs.c

Extension

.c

Size

22214 bytes

Lines

932

Domain

Driver Families

Bucket

drivers/platform

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/module.h
• linux/kernel.h
• linux/device.h
• linux/slab.h
• linux/kobject.h
• linux/vmalloc.h
• asm/uv/bios.h
• asm/uv/uv.h
• asm/uv/uv_hub.h
• asm/uv/uv_geo.h

Detected Declarations

• struct uv_hub
• struct hub_sysfs_entry
• struct uv_port
• struct uv_port_sysfs_entry
• struct uv_pci_top_obj
• struct uv_pci_top_sysfs_entry
• function ordinal_to_nasid
• function cnode_to_geoid
• function location_to_bpos
• function cache_obj_to_cnode
• function get_obj_to_cnode
• function hub_name_show
• function hub_location_show
• function hub_partition_show
• function hub_shared_show
• function hub_nasid_show
• function hub_cnode_show
• function hub_release
• function hub_type_show
• function uv_hubs_init
• function uv_hubs_exit
• function uv_port_conn_hub_show
• function uv_port_conn_port_show
• function uv_port_release
• function uv_port_type_show
• function uv_ports_init
• function uv_ports_exit
• function uv_pci_type_show
• function uv_pci_location_show
• function uv_pci_iio_stack_show
• function uv_pci_ppb_addr_show
• function uv_pci_slot_show
• function uv_pci_top_release
• function pci_top_type_show
• function init_pci_top_obj
• function IO
• function pci_topology_init
• function pci_topology_exit
• function partition_id_show
• function coherence_id_show
• function uv_type_show
• function uv_archtype_show
• function uv_hub_type_show
• function uv_hubless_show
• function initial_bios_setup
• function uv_sysfs_hubless_init
• function uv_sysfs_init
• function uv_sysfs_hubless_exit

Annotated Snippet

device_initcall(uv_sysfs_init);
#else
module_init(uv_sysfs_init);
#endif
module_exit(uv_sysfs_exit);

MODULE_AUTHOR("Hewlett Packard Enterprise");
MODULE_DESCRIPTION("Sysfs structure for HPE UV systems");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/kernel.h`, `linux/device.h`, `linux/slab.h`, `linux/kobject.h`, `linux/vmalloc.h`, `asm/uv/bios.h`, `asm/uv/uv.h`.
• Detected declarations: `struct uv_hub`, `struct hub_sysfs_entry`, `struct uv_port`, `struct uv_port_sysfs_entry`, `struct uv_pci_top_obj`, `struct uv_pci_top_sysfs_entry`, `function ordinal_to_nasid`, `function cnode_to_geoid`, `function location_to_bpos`, `function cache_obj_to_cnode`.
• Atlas domain: Driver Families / drivers/platform.
• 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.