drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/nvrm/bar.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/nvrm/bar.h

Extension

.h

Size

721 bytes

Lines

30

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

• nvrm/nvtypes.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __NVRM_BAR_H__
#define __NVRM_BAR_H__
#include <nvrm/nvtypes.h>

/* Excerpt of RM headers from https://github.com/NVIDIA/open-gpu-kernel-modules/tree/535.113.01 */

typedef enum
{
    NV_RPC_UPDATE_PDE_BAR_1,
    NV_RPC_UPDATE_PDE_BAR_2,
    NV_RPC_UPDATE_PDE_BAR_INVALID,
} NV_RPC_UPDATE_PDE_BAR_TYPE;

typedef struct UpdateBarPde_v15_00
{
    NV_RPC_UPDATE_PDE_BAR_TYPE barType;
    NvU64      entryValue NV_ALIGN_BYTES(8);
    NvU64      entryLevelShift NV_ALIGN_BYTES(8);
} UpdateBarPde_v15_00;

typedef struct rpc_update_bar_pde_v15_00
{
    UpdateBarPde_v15_00 info;
} rpc_update_bar_pde_v15_00;
#endif

Annotation

• Immediate include surface: `nvrm/nvtypes.h`.
• 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.