drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/power_budget.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/power_budget.h

Extension

.h

Size

593 bytes

Lines

28

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

• nvkm/subdev/bios.h

Detected Declarations

• struct nvbios_power_budget_entry
• struct nvbios_power_budget

Annotated Snippet

struct nvbios_power_budget_entry {
	u32 min_w;
	u32 avg_w;
	u32 max_w;
};

struct nvbios_power_budget {
	u32 offset;
	u8  ver;
	u8  hlen;
	u8  elen;
	u8  ecount;
	u8  cap_entry;
};

int nvbios_power_budget_header(struct nvkm_bios *,
                               struct nvbios_power_budget *);
int nvbios_power_budget_entry(struct nvkm_bios *, struct nvbios_power_budget *,
                              u8 idx, struct nvbios_power_budget_entry *);

#endif

Annotation

• Immediate include surface: `nvkm/subdev/bios.h`.
• Detected declarations: `struct nvbios_power_budget_entry`, `struct nvbios_power_budget`.
• 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.