drivers/tee/optee/core.c

File Facts

System

Linux kernel

Corpus path

drivers/tee/optee/core.c

Extension

.c

Size

6608 bytes

Lines

281

Domain

Driver Families

Bucket

drivers/tee

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/crash_dump.h
• linux/errno.h
• linux/io.h
• linux/module.h
• linux/rpmb.h
• linux/slab.h
• linux/string.h
• linux/tee_core.h
• linux/types.h
• optee_private.h

Detected Declarations

• function rpmb_add_dev
• function optee_bus_scan_rpmb
• function optee_rpmb_intf_rdev
• function optee_set_dma_mask
• function optee_get_revision
• function optee_bus_scan
• function rpmb_routing_model_show
• function optee_set_dev_group
• function optee_open
• function optee_release_helper
• function list_for_each_entry_safe
• function optee_release
• function optee_release_supp
• function optee_remove_common
• function optee_core_init
• function optee_core_exit
• module init optee_core_init

Annotated Snippet

module_init(optee_core_init);

static void __exit optee_core_exit(void)
{
	if (IS_REACHABLE(CONFIG_RPMB) && intf_is_regged) {
		rpmb_interface_unregister(&rpmb_class_intf);
		intf_is_regged = false;
	}

	if (!smc_abi_rc)
		optee_smc_abi_unregister();
	if (!ffa_abi_rc)
		optee_ffa_abi_unregister();
}
module_exit(optee_core_exit);

MODULE_AUTHOR("Linaro");
MODULE_DESCRIPTION("OP-TEE driver");
MODULE_VERSION("1.0");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:optee");

Annotation

• Immediate include surface: `linux/crash_dump.h`, `linux/errno.h`, `linux/io.h`, `linux/module.h`, `linux/rpmb.h`, `linux/slab.h`, `linux/string.h`, `linux/tee_core.h`.
• Detected declarations: `function rpmb_add_dev`, `function optee_bus_scan_rpmb`, `function optee_rpmb_intf_rdev`, `function optee_set_dma_mask`, `function optee_get_revision`, `function optee_bus_scan`, `function rpmb_routing_model_show`, `function optee_set_dev_group`, `function optee_open`, `function optee_release_helper`.
• Atlas domain: Driver Families / drivers/tee.
• 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.