drivers/gpu/drm/amd/display/dc/bios/bios_parser_types_internal.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/display/dc/bios/bios_parser_types_internal.h

Extension

.h

Size

2090 bytes

Lines

73

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

• dc_bios_types.h
• bios_parser_helper.h

Detected Declarations

• struct atom_data_revision
• struct object_info_table
• struct bios_parser
• enum spread_spectrum_id

Annotated Snippet

struct atom_data_revision {
	uint32_t major;
	uint32_t minor;
};

struct object_info_table {
	struct atom_data_revision revision;
	union {
		ATOM_OBJECT_HEADER *v1_1;
		ATOM_OBJECT_HEADER_V3 *v1_3;
	};
};

enum spread_spectrum_id {
	SS_ID_UNKNOWN = 0,
	SS_ID_DP1 = 0xf1,
	SS_ID_DP2 = 0xf2,
	SS_ID_LVLINK_2700MHZ = 0xf3,
	SS_ID_LVLINK_1620MHZ = 0xf4
};

struct bios_parser {
	struct dc_bios base;

	struct object_info_table object_info_tbl;
	uint32_t object_info_tbl_offset;
	ATOM_MASTER_DATA_TABLE *master_data_tbl;

	const struct bios_parser_helper *bios_helper;

	const struct command_table_helper *cmd_helper;
	struct cmd_tbl cmd_tbl;

	bool remap_device_tags;
};

/* Bios Parser from DC Bios */
#define BP_FROM_DCB(dc_bios) \
	container_of(dc_bios, struct bios_parser, base)

#endif

Annotation

• Immediate include surface: `dc_bios_types.h`, `bios_parser_helper.h`.
• Detected declarations: `struct atom_data_revision`, `struct object_info_table`, `struct bios_parser`, `enum spread_spectrum_id`.
• 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.