drivers/gpu/drm/nouveau/nvkm/engine/fifo/gb202.c

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gb202.c

Extension

.c

Size

294 bytes

Lines

15

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

• priv.h
• cgrp.h
• chan.h
• runl.h

Detected Declarations

• function Copyright

Annotated Snippet

#include "priv.h"
#include "cgrp.h"
#include "chan.h"
#include "runl.h"

u32
gb202_chan_doorbell_handle(struct nvkm_chan *chan)
{
	return BIT(30) | (chan->cgrp->runl->id << 16) | chan->id;
}

Annotation

• Immediate include surface: `priv.h`, `cgrp.h`, `chan.h`, `runl.h`.
• Detected declarations: `function Copyright`.
• 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.