drivers/gpu/drm/nouveau/include/nvkm/subdev/fault.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/nouveau/include/nvkm/subdev/fault.h

Extension

.h

Size

995 bytes

Lines

42

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

• core/subdev.h
• core/event.h

Detected Declarations

• struct nvkm_fault
• struct nvkm_fault_data

Annotated Snippet

struct nvkm_fault {
	const struct nvkm_fault_func *func;
	struct nvkm_subdev subdev;

	struct nvkm_inth info_fault;

	struct nvkm_fault_buffer *buffer[2];
	int buffer_nr;

#define NVKM_FAULT_BUFFER_EVENT_PENDING BIT(0)
	struct nvkm_event event;

	struct nvkm_event_ntfy nrpfb;
	struct work_struct nrpfb_work;

	struct nvkm_device_oclass user;
};

struct nvkm_fault_data {
	u64  addr;
	u64  inst;
	u64  time;
	u8 engine;
	u8  valid;
	u8    gpc;
	u8    hub;
	u8 access;
	u8 client;
	u8 reason;
};

int gp100_fault_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_fault **);
int gp10b_fault_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_fault **);
int gv100_fault_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_fault **);
int tu102_fault_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_fault **);
#endif

Annotation

• Immediate include surface: `core/subdev.h`, `core/event.h`.
• Detected declarations: `struct nvkm_fault`, `struct nvkm_fault_data`.
• 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.