drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.h

Extension

.h

Size

3148 bytes

Lines

77

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

Detected Declarations

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

Annotated Snippet

#ifndef __NVKM_FB_RAM_PRIV_H__
#define __NVKM_FB_RAM_PRIV_H__
#include "priv.h"

int  nvkm_ram_ctor(const struct nvkm_ram_func *, struct nvkm_fb *,
		   enum nvkm_ram_type, u64 size, struct nvkm_ram *);
int  nvkm_ram_new_(const struct nvkm_ram_func *, struct nvkm_fb *,
		   enum nvkm_ram_type, u64 size, struct nvkm_ram **);
void nvkm_ram_del(struct nvkm_ram **);
int  nvkm_ram_init(struct nvkm_ram *);

extern const struct nvkm_ram_func nv04_ram_func;

int  nv50_ram_ctor(const struct nvkm_ram_func *, struct nvkm_fb *,
		   struct nvkm_ram *);

int gf100_ram_new_(const struct nvkm_ram_func *, struct nvkm_fb *,
		   struct nvkm_ram **);
int  gf100_ram_ctor(const struct nvkm_ram_func *, struct nvkm_fb *,
		    struct nvkm_ram *);
u32  gf100_ram_probe_fbp(const struct nvkm_ram_func *,
			 struct nvkm_device *, int, int *);
u32  gf100_ram_probe_fbp_amount(const struct nvkm_ram_func *, u32,
				struct nvkm_device *, int, int *);
u32  gf100_ram_probe_fbpa_amount(struct nvkm_device *, int);
int gf100_ram_init(struct nvkm_ram *);
int gf100_ram_calc(struct nvkm_ram *, u32);
int gf100_ram_prog(struct nvkm_ram *);
void gf100_ram_tidy(struct nvkm_ram *);

u32 gf108_ram_probe_fbp_amount(const struct nvkm_ram_func *, u32,
			       struct nvkm_device *, int, int *);

int gk104_ram_new_(const struct nvkm_ram_func *, struct nvkm_fb *,
		   struct nvkm_ram **);
void *gk104_ram_dtor(struct nvkm_ram *);
int gk104_ram_init(struct nvkm_ram *);
int gk104_ram_calc(struct nvkm_ram *, u32);
int gk104_ram_prog(struct nvkm_ram *);
void gk104_ram_tidy(struct nvkm_ram *);

u32 gm107_ram_probe_fbp(const struct nvkm_ram_func *,
			struct nvkm_device *, int, int *);

u32 gm200_ram_probe_fbp_amount(const struct nvkm_ram_func *, u32,
			       struct nvkm_device *, int, int *);

int gp100_ram_init(struct nvkm_ram *);

/* RAM type-specific MR calculation routines */
int nvkm_sddr2_calc(struct nvkm_ram *);
int nvkm_sddr3_calc(struct nvkm_ram *);
int nvkm_gddr3_calc(struct nvkm_ram *);
int nvkm_gddr5_calc(struct nvkm_ram *, bool nuts);

int nv04_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int nv10_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int nv1a_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int nv20_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int nv40_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int nv41_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int nv44_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int nv49_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int nv4e_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int nv50_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int gt215_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int mcp77_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int gf100_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int gf108_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int gk104_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int gm107_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int gm200_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int gp100_ram_new(struct nvkm_fb *, struct nvkm_ram **);
int gp102_ram_new(struct nvkm_fb *, struct nvkm_ram **);
#endif

Annotation

• Immediate include surface: `priv.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.