drivers/tee/amdtee/core.c

File Facts

System

Linux kernel

Corpus path

drivers/tee/amdtee/core.c

Extension

.c

Size

10882 bytes

Lines

494

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/errno.h
• linux/device.h
• linux/firmware.h
• linux/io.h
• linux/mm.h
• linux/module.h
• linux/psp-tee.h
• linux/slab.h
• linux/string.h
• linux/tee_core.h
• linux/types.h
• linux/uaccess.h
• amdtee_private.h

Detected Declarations

• function amdtee_get_version
• function amdtee_open
• function release_session
• function amdtee_release
• function alloc_session
• function copy_ta_binary
• function destroy_session
• function amdtee_open_session
• function amdtee_close_session
• function amdtee_map_shmem
• function amdtee_unmap_shmem
• function amdtee_invoke_func
• function amdtee_cancel_req
• function amdtee_driver_init
• function amdtee_driver_exit
• module init amdtee_driver_init

Annotated Snippet

module_init(amdtee_driver_init);

static void __exit amdtee_driver_exit(void)
{
	struct amdtee *amdtee;

	if (!drv_data || !drv_data->amdtee)
		return;

	amdtee = drv_data->amdtee;

	tee_device_unregister(amdtee->teedev);
	tee_shm_pool_free(amdtee->pool);
}
module_exit(amdtee_driver_exit);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION("AMD-TEE driver");
MODULE_VERSION("1.0");
MODULE_LICENSE("Dual MIT/GPL");

Annotation

• Immediate include surface: `linux/errno.h`, `linux/device.h`, `linux/firmware.h`, `linux/io.h`, `linux/mm.h`, `linux/module.h`, `linux/psp-tee.h`, `linux/slab.h`.
• Detected declarations: `function amdtee_get_version`, `function amdtee_open`, `function release_session`, `function amdtee_release`, `function alloc_session`, `function copy_ta_binary`, `function destroy_session`, `function amdtee_open_session`, `function amdtee_close_session`, `function amdtee_map_shmem`.
• 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.