drivers/gpu/drm/nouveau/include/nvhw/class/clc37b.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/nouveau/include/nvhw/class/clc37b.h

Extension

.h

Size

2878 bytes

Lines

50

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.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

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

Annotated Snippet

#ifndef _clC37b_h_
#define _clC37b_h_

// dma opcode instructions
#define NVC37B_DMA
#define NVC37B_DMA_OPCODE                                                        31:29
#define NVC37B_DMA_OPCODE_METHOD                                            0x00000000
#define NVC37B_DMA_OPCODE_JUMP                                              0x00000001
#define NVC37B_DMA_OPCODE_NONINC_METHOD                                     0x00000002
#define NVC37B_DMA_OPCODE_SET_SUBDEVICE_MASK                                0x00000003
#define NVC37B_DMA_METHOD_COUNT                                                  27:18
#define NVC37B_DMA_METHOD_OFFSET                                                  13:2
#define NVC37B_DMA_DATA                                                           31:0
#define NVC37B_DMA_DATA_NOP                                                 0x00000000
#define NVC37B_DMA_JUMP_OFFSET                                                    11:2
#define NVC37B_DMA_SET_SUBDEVICE_MASK_VALUE                                       11:0

// class methods
#define NVC37B_UPDATE                                                           (0x00000200)
#define NVC37B_UPDATE_INTERLOCK_WITH_WINDOW                                     1:1
#define NVC37B_UPDATE_INTERLOCK_WITH_WINDOW_DISABLE                             (0x00000000)
#define NVC37B_UPDATE_INTERLOCK_WITH_WINDOW_ENABLE                              (0x00000001)
#define NVC37B_SET_POINT_OUT(b)                                                 (0x00000208 + (b)*0x00000004)
#define NVC37B_SET_POINT_OUT_X                                                  15:0
#define NVC37B_SET_POINT_OUT_Y                                                  31:16
#endif // _clC37b_h

Annotation

• 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.