drivers/gpu/drm/nouveau/include/nvkm/core/engine.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/include/nvkm/core/engine.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/nouveau/include/nvkm/core/engine.h
Extension
.h
Size
1837 bytes
Lines
56
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct nvkm_engine {
	const struct nvkm_engine_func *func;
	struct nvkm_subdev subdev;
	spinlock_t lock;
};

struct nvkm_engine_func {
	void *(*dtor)(struct nvkm_engine *);
	void (*preinit)(struct nvkm_engine *);
	int (*oneinit)(struct nvkm_engine *);
	int (*info)(struct nvkm_engine *, u64 mthd, u64 *data);
	int (*init)(struct nvkm_engine *);
	int (*fini)(struct nvkm_engine *, enum nvkm_suspend_state suspend);
	int (*reset)(struct nvkm_engine *);
	int (*nonstall)(struct nvkm_engine *);
	void (*intr)(struct nvkm_engine *);
	void (*tile)(struct nvkm_engine *, int region, struct nvkm_fb_tile *);
	bool (*chsw_load)(struct nvkm_engine *);

	struct {
		int (*sclass)(struct nvkm_oclass *, int index,
			      const struct nvkm_device_oclass **);
	} base;

	struct {
		int (*cclass)(struct nvkm_chan *, const struct nvkm_oclass *,
			      struct nvkm_object **);
		int (*sclass)(struct nvkm_oclass *, int index);
	} fifo;

	const struct nvkm_object_func *cclass;
	struct nvkm_sclass sclass[];
};

int nvkm_engine_ctor(const struct nvkm_engine_func *, struct nvkm_device *,
		     enum nvkm_subdev_type, int inst, bool enable, struct nvkm_engine *);
int nvkm_engine_new_(const struct nvkm_engine_func *, struct nvkm_device *,
		     enum nvkm_subdev_type, int, bool enable, struct nvkm_engine **);

struct nvkm_engine *nvkm_engine_ref(struct nvkm_engine *);
void nvkm_engine_unref(struct nvkm_engine **);
int nvkm_engine_reset(struct nvkm_engine *);
void nvkm_engine_tile(struct nvkm_engine *, int region);
bool nvkm_engine_chsw_load(struct nvkm_engine *);
#endif

Annotation

Implementation Notes