drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.h

Extension

.h

Size

1500 bytes

Lines

43

Domain

Driver Families

Bucket

drivers/gpu

Inferred role

Driver Families: implementation source

Status

source 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 or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• link_service.h
• dpcd_defs.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __LINK_DPCD_H__
#define __LINK_DPCD_H__
#include "link_service.h"
#include "dpcd_defs.h"

enum dc_status core_link_read_dpcd(
		struct dc_link *link,
		uint32_t address,
		uint8_t *data,
		uint32_t size);

enum dc_status core_link_write_dpcd(
		struct dc_link *link,
		uint32_t address,
		const uint8_t *data,
		uint32_t size);
#endif

Annotation

• Immediate include surface: `link_service.h`, `dpcd_defs.h`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source 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.