drivers/gpu/drm/nouveau/include/nvif/head.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/nouveau/include/nvif/head.h

Extension

.h

Size

550 bytes

Lines

24

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

• nvif/object.h
• nvif/event.h

Detected Declarations

• struct nvif_disp
• struct nvif_head
• function nvif_head_id

Annotated Snippet

struct nvif_head {
	struct nvif_object object;
};

int nvif_head_ctor(struct nvif_disp *, const char *name, int id, struct nvif_head *);
void nvif_head_dtor(struct nvif_head *);

static inline int
nvif_head_id(struct nvif_head *head)
{
	return head->object.handle;
}

int nvif_head_vblank_event_ctor(struct nvif_head *, const char *name, nvif_event_func, bool wait,
				struct nvif_event *);
#endif

Annotation

• Immediate include surface: `nvif/object.h`, `nvif/event.h`.
• Detected declarations: `struct nvif_disp`, `struct nvif_head`, `function nvif_head_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.