drivers/gpu/drm/xe/regs/xe_guc_regs.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/xe/regs/xe_guc_regs.h

Extension

.h

Size

5662 bytes

Lines

166

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

• linux/compiler.h
• linux/types.h
• regs/xe_reg_defs.h

Detected Declarations

• struct guc_doorbell_info

Annotated Snippet

struct guc_doorbell_info {
	u32 db_status;
#define GUC_DOORBELL_DISABLED			0
#define GUC_DOORBELL_ENABLED			1

	u32 cookie;
	u32 reserved[14];
} __packed;

#endif

Annotation

• Immediate include surface: `linux/compiler.h`, `linux/types.h`, `regs/xe_reg_defs.h`.
• Detected declarations: `struct guc_doorbell_info`.
• 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.