drivers/gpu/drm/nouveau/include/nvif/cl0002.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/include/nvif/cl0002.h

File Facts

System: Linux kernel
Corpus path: drivers/gpu/drm/nouveau/include/nvif/cl0002.h
Extension: .h
Size: 2937 bytes
Lines: 68
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

No C-style include directives detected by the generator.

Detected Declarations

struct nv_dma_v0
struct nv50_dma_v0
struct gf100_dma_v0
struct gf119_dma_v0

Annotated Snippet

struct nv_dma_v0 {
	__u8  version;
#define NV_DMA_V0_TARGET_VM                                                0x00
#define NV_DMA_V0_TARGET_VRAM                                              0x01
#define NV_DMA_V0_TARGET_PCI                                               0x02
#define NV_DMA_V0_TARGET_PCI_US                                            0x03
#define NV_DMA_V0_TARGET_AGP                                               0x04
	__u8  target;
#define NV_DMA_V0_ACCESS_VM                                                0x00
#define NV_DMA_V0_ACCESS_RD                                                0x01
#define NV_DMA_V0_ACCESS_WR                                                0x02
#define NV_DMA_V0_ACCESS_RDWR                 (NV_DMA_V0_ACCESS_RD | NV_DMA_V0_ACCESS_WR)
	__u8  access;
	__u8  pad03[5];
	__u64 start;
	__u64 limit;
	/* ... chipset-specific class data */
};

struct nv50_dma_v0 {
	__u8  version;
#define NV50_DMA_V0_PRIV_VM                                                0x00
#define NV50_DMA_V0_PRIV_US                                                0x01
#define NV50_DMA_V0_PRIV__S                                                0x02
	__u8  priv;
#define NV50_DMA_V0_PART_VM                                                0x00
#define NV50_DMA_V0_PART_256                                               0x01
#define NV50_DMA_V0_PART_1KB                                               0x02
	__u8  part;
#define NV50_DMA_V0_COMP_NONE                                              0x00
#define NV50_DMA_V0_COMP_1                                                 0x01
#define NV50_DMA_V0_COMP_2                                                 0x02
#define NV50_DMA_V0_COMP_VM                                                0x03
	__u8  comp;
#define NV50_DMA_V0_KIND_PITCH                                             0x00
#define NV50_DMA_V0_KIND_VM                                                0x7f
	__u8  kind;
	__u8  pad05[3];
};

struct gf100_dma_v0 {
	__u8  version;
#define GF100_DMA_V0_PRIV_VM                                               0x00
#define GF100_DMA_V0_PRIV_US                                               0x01
#define GF100_DMA_V0_PRIV__S                                               0x02
	__u8  priv;
#define GF100_DMA_V0_KIND_PITCH                                            0x00
#define GF100_DMA_V0_KIND_VM                                               0xff
	__u8  kind;
	__u8  pad03[5];
};

struct gf119_dma_v0 {
	__u8  version;
#define GF119_DMA_V0_PAGE_LP                                               0x00
#define GF119_DMA_V0_PAGE_SP                                               0x01
	__u8  page;
#define GF119_DMA_V0_KIND_PITCH                                            0x00
#define GF119_DMA_V0_KIND_VM                                               0xff
	__u8  kind;
	__u8  pad03[5];
};
#endif

Annotation

Detected declarations: `struct nv_dma_v0`, `struct nv50_dma_v0`, `struct gf100_dma_v0`, `struct gf119_dma_v0`.
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.