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      1 /*	$NetBSD: engine.h,v 1.3 2021/12/18 23:45:33 riastradh Exp $	*/
      2 
      3 /* SPDX-License-Identifier: MIT */
      4 #ifndef __NVKM_ENGINE_H__
      5 #define __NVKM_ENGINE_H__
      6 #define nvkm_engine(p) container_of((p), struct nvkm_engine, subdev)
      7 #include <core/subdev.h>
      8 struct nvkm_fifo_chan;
      9 struct nvkm_fb_tile;
     10 
     11 struct nvkm_engine {
     12 	const struct nvkm_engine_func *func;
     13 	struct nvkm_subdev subdev;
     14 	spinlock_t lock;
     15 
     16 	int usecount;
     17 };
     18 
     19 struct nvkm_engine_func {
     20 	void *(*dtor)(struct nvkm_engine *);
     21 	void (*preinit)(struct nvkm_engine *);
     22 	int (*oneinit)(struct nvkm_engine *);
     23 	int (*info)(struct nvkm_engine *, u64 mthd, u64 *data);
     24 	int (*init)(struct nvkm_engine *);
     25 	int (*fini)(struct nvkm_engine *, bool suspend);
     26 	void (*intr)(struct nvkm_engine *);
     27 	void (*tile)(struct nvkm_engine *, int region, struct nvkm_fb_tile *);
     28 	bool (*chsw_load)(struct nvkm_engine *);
     29 
     30 	struct {
     31 		int (*sclass)(struct nvkm_oclass *, int index,
     32 			      const struct nvkm_device_oclass **);
     33 	} base;
     34 
     35 	struct {
     36 		int (*cclass)(struct nvkm_fifo_chan *,
     37 			      const struct nvkm_oclass *,
     38 			      struct nvkm_object **);
     39 		int (*sclass)(struct nvkm_oclass *, int index);
     40 	} fifo;
     41 
     42 	const struct nvkm_object_func *cclass;
     43 	struct nvkm_sclass sclass[];
     44 };
     45 
     46 int nvkm_engine_ctor(const struct nvkm_engine_func *, struct nvkm_device *,
     47 		     int index, bool enable, struct nvkm_engine *);
     48 int nvkm_engine_new_(const struct nvkm_engine_func *, struct nvkm_device *,
     49 		     int index, bool enable, struct nvkm_engine **);
     50 struct nvkm_engine *nvkm_engine_ref(struct nvkm_engine *);
     51 void nvkm_engine_unref(struct nvkm_engine **);
     52 void nvkm_engine_tile(struct nvkm_engine *, int region);
     53 bool nvkm_engine_chsw_load(struct nvkm_engine *);
     54 #endif
     55