sound/soc/amd/acp/acp-pci.c

File Facts

System

Linux kernel

Corpus path

sound/soc/amd/acp/acp-pci.c

Extension

.c

Size

7512 bytes

Lines

302

Domain

Driver Families

Bucket

sound/soc

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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/delay.h
• linux/interrupt.h
• linux/pci.h
• linux/platform_device.h
• linux/module.h
• linux/pm_runtime.h
• amd.h
• ../mach-config.h

Detected Declarations

• function irq_handler
• function acp_fill_platform_dev_info
• function create_acp_platform_devs
• function acp_pci_probe
• function snd_acp_suspend
• function snd_acp_resume
• function acp_pci_remove

Annotated Snippet

static struct pci_driver snd_amd_acp_pci_driver = {
	.name = KBUILD_MODNAME,
	.id_table = acp_pci_ids,
	.probe = acp_pci_probe,
	.remove = acp_pci_remove,
	.driver = {
		.pm = pm_ptr(&acp_pm_ops),
	},
};
module_pci_driver(snd_amd_acp_pci_driver);

MODULE_DESCRIPTION("AMD ACP common PCI support");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_IMPORT_NS("SND_SOC_ACP_COMMON");
MODULE_ALIAS(DRV_NAME);

Annotation

• Immediate include surface: `linux/delay.h`, `linux/interrupt.h`, `linux/pci.h`, `linux/platform_device.h`, `linux/module.h`, `linux/pm_runtime.h`, `amd.h`, `../mach-config.h`.
• Detected declarations: `function irq_handler`, `function acp_fill_platform_dev_info`, `function create_acp_platform_devs`, `function acp_pci_probe`, `function snd_acp_suspend`, `function snd_acp_resume`, `function acp_pci_remove`.
• Atlas domain: Driver Families / sound/soc.
• Implementation status: pattern implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.