drivers/gpu/drm/nouveau/nouveau_vmm.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/nouveau/nouveau_vmm.h

Extension

.h

Size

831 bytes

Lines

34

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/vmm.h

Detected Declarations

• struct nouveau_bo
• struct nouveau_mem
• struct nouveau_vma
• struct nouveau_vmm

Annotated Snippet

struct nouveau_vma {
	struct nouveau_vmm *vmm;
	int refs;
	struct list_head head;
	u64 addr;

	struct nouveau_mem *mem;

	struct nouveau_fence *fence;
};

struct nouveau_vma *nouveau_vma_find(struct nouveau_bo *, struct nouveau_vmm *);
int nouveau_vma_new(struct nouveau_bo *, struct nouveau_vmm *,
		    struct nouveau_vma **);
void nouveau_vma_del(struct nouveau_vma **);
int nouveau_vma_map(struct nouveau_vma *, struct nouveau_mem *);
void nouveau_vma_unmap(struct nouveau_vma *);

struct nouveau_vmm {
	struct nouveau_cli *cli;
	struct nvif_vmm vmm;
	struct nouveau_svmm *svmm;
};

int nouveau_vmm_init(struct nouveau_cli *, s32 oclass, struct nouveau_vmm *);
void nouveau_vmm_fini(struct nouveau_vmm *);
#endif

Annotation

• Immediate include surface: `nvif/vmm.h`.
• Detected declarations: `struct nouveau_bo`, `struct nouveau_mem`, `struct nouveau_vma`, `struct nouveau_vmm`.
• 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.