drivers/gpu/drm/nouveau/dispnv50/head.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/dispnv50/head.h

File Facts

System: Linux kernel
Corpus path: drivers/gpu/drm/nouveau/dispnv50/head.h
Extension: .h
Size: 4509 bytes
Lines: 107
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

linux/workqueue.h
disp.h
atom.h
crc.h
lut.h
nouveau_crtc.h
nouveau_encoder.h

Detected Declarations

struct nv50_head
struct nv50_head_func

Annotated Snippet

struct nv50_head {
	const struct nv50_head_func *func;
	struct nv50_disp *disp;

	struct nouveau_crtc base;
	struct nv50_crc crc;
	struct nv50_lut olut;
	struct nv50_msto *msto;
};

struct nv50_head *nv50_head_create(struct drm_device *, int index);
void nv50_head_flush_set(struct nv50_head *head, struct nv50_head_atom *asyh);
void nv50_head_flush_set_wndw(struct nv50_head *head, struct nv50_head_atom *asyh);
void nv50_head_flush_clr(struct nv50_head *head,
			 struct nv50_head_atom *asyh, bool flush);

struct nv50_head_func {
	int (*view)(struct nv50_head *, struct nv50_head_atom *);
	int (*mode)(struct nv50_head *, struct nv50_head_atom *);
	bool (*olut)(struct nv50_head *, struct nv50_head_atom *, int);
	bool (*ilut_check)(int size);
	bool olut_identity;
	int  olut_size;
	int (*olut_set)(struct nv50_head *, struct nv50_head_atom *);
	int (*olut_clr)(struct nv50_head *);
	void (*core_calc)(struct nv50_head *, struct nv50_head_atom *);
	int (*core_set)(struct nv50_head *, struct nv50_head_atom *);
	int (*core_clr)(struct nv50_head *);
	int (*curs_layout)(struct nv50_head *, struct nv50_wndw_atom *,
			   struct nv50_head_atom *);
	int (*curs_format)(struct nv50_head *, struct nv50_wndw_atom *,
			   struct nv50_head_atom *);
	int (*curs_set)(struct nv50_head *, struct nv50_head_atom *);
	int (*curs_clr)(struct nv50_head *);
	int (*base)(struct nv50_head *, struct nv50_head_atom *);
	int (*ovly)(struct nv50_head *, struct nv50_head_atom *);
	int (*dither)(struct nv50_head *, struct nv50_head_atom *);
	int (*procamp)(struct nv50_head *, struct nv50_head_atom *);
	int (*or)(struct nv50_head *, struct nv50_head_atom *);
	void (*static_wndw_map)(struct nv50_head *, struct nv50_head_atom *);
	int (*display_id)(struct nv50_head *, u32 display_id);
};

extern const struct nv50_head_func head507d;
int head507d_view(struct nv50_head *, struct nv50_head_atom *);
int head507d_mode(struct nv50_head *, struct nv50_head_atom *);
bool head507d_olut(struct nv50_head *, struct nv50_head_atom *, int);
void head507d_core_calc(struct nv50_head *, struct nv50_head_atom *);
int head507d_core_clr(struct nv50_head *);
int head507d_curs_layout(struct nv50_head *, struct nv50_wndw_atom *,
			 struct nv50_head_atom *);
int head507d_curs_format(struct nv50_head *, struct nv50_wndw_atom *,
			 struct nv50_head_atom *);
int head507d_base(struct nv50_head *, struct nv50_head_atom *);
int head507d_ovly(struct nv50_head *, struct nv50_head_atom *);
int head507d_dither(struct nv50_head *, struct nv50_head_atom *);
int head507d_procamp(struct nv50_head *, struct nv50_head_atom *);

extern const struct nv50_head_func head827d;

extern const struct nv50_head_func head907d;
int head907d_view(struct nv50_head *, struct nv50_head_atom *);
int head907d_mode(struct nv50_head *, struct nv50_head_atom *);
bool head907d_olut(struct nv50_head *, struct nv50_head_atom *, int);
bool head907d_ilut_check(int size);
int head907d_olut_set(struct nv50_head *, struct nv50_head_atom *);
int head907d_olut_clr(struct nv50_head *);
int head907d_core_set(struct nv50_head *, struct nv50_head_atom *);
int head907d_core_clr(struct nv50_head *);
int head907d_curs_set(struct nv50_head *, struct nv50_head_atom *);
int head907d_curs_clr(struct nv50_head *);
int head907d_ovly(struct nv50_head *, struct nv50_head_atom *);
int head907d_procamp(struct nv50_head *, struct nv50_head_atom *);
int head907d_or(struct nv50_head *, struct nv50_head_atom *);

extern const struct nv50_head_func head917d;
int head917d_curs_layout(struct nv50_head *, struct nv50_wndw_atom *,
			 struct nv50_head_atom *);

extern const struct nv50_head_func headc37d;
int headc37d_view(struct nv50_head *, struct nv50_head_atom *);
int headc37d_curs_format(struct nv50_head *, struct nv50_wndw_atom *,
			 struct nv50_head_atom *);
int headc37d_curs_set(struct nv50_head *, struct nv50_head_atom *);
int headc37d_curs_clr(struct nv50_head *);
int headc37d_dither(struct nv50_head *, struct nv50_head_atom *);
void headc37d_static_wndw_map(struct nv50_head *, struct nv50_head_atom *);

extern const struct nv50_head_func headc57d;
bool headc57d_olut(struct nv50_head *, struct nv50_head_atom *, int size);

Annotation

Immediate include surface: `linux/workqueue.h`, `disp.h`, `atom.h`, `crc.h`, `lut.h`, `nouveau_crtc.h`, `nouveau_encoder.h`.
Detected declarations: `struct nv50_head`, `struct nv50_head_func`.
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.