drivers/gpu/drm/amd/display/include/grph_object_defs.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/display/include/grph_object_defs.h

Extension

.h

Size

5717 bytes

Lines

197

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

• grph_object_id.h

Detected Declarations

• struct connector_layout_info
• struct slot_layout_info
• struct board_layout_info
• enum hpd_source_id
• enum channel_id
• enum transmitter
• enum sync_source
• enum tx_ffe_id
• enum connector_layout_type

Annotated Snippet

struct connector_layout_info {
	struct graphics_object_id connector_id;
	enum connector_layout_type connector_type;
	unsigned int length;
	unsigned int position;  /* offset in mm from right side of the board */
};

/* length and width in mm */
struct slot_layout_info {
	unsigned int length;
	unsigned int width;
	unsigned int num_of_connectors;
	struct connector_layout_info connectors[MAX_CONNECTOR_NUMBER_PER_SLOT];
};

struct board_layout_info {
	unsigned int num_of_slots;

	/* indicates valid information in bracket layout structure. */
	unsigned int is_number_of_slots_valid : 1;
	unsigned int is_slots_size_valid : 1;
	unsigned int is_connector_offsets_valid : 1;
	unsigned int is_connector_lengths_valid : 1;

	struct slot_layout_info slots[MAX_BOARD_SLOTS];
};
#endif

Annotation

• Immediate include surface: `grph_object_id.h`.
• Detected declarations: `struct connector_layout_info`, `struct slot_layout_info`, `struct board_layout_info`, `enum hpd_source_id`, `enum channel_id`, `enum transmitter`, `enum sync_source`, `enum tx_ffe_id`, `enum connector_layout_type`.
• 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.