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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __NVKM_ENGINE_H__
   3 #define __NVKM_ENGINE_H__
   4 #define nvkm_engine(p) container_of((p), struct nvkm_engine, subdev)
   5 #include <core/subdev.h>
   6 struct nvkm_fifo_chan;
   7 struct nvkm_fb_tile;
   8
   9 struct nvkm_engine {
  10         const struct nvkm_engine_func *func;
  11         struct nvkm_subdev subdev;
  12         spinlock_t lock;
  13
  14         int usecount;
  15 };
  16
  17 struct nvkm_engine_func {
  18         void *(*dtor)(struct nvkm_engine *);
  19         int (*oneinit)(struct nvkm_engine *);
  20         int (*init)(struct nvkm_engine *);
  21         int (*fini)(struct nvkm_engine *, bool suspend);
  22         void (*intr)(struct nvkm_engine *);
  23         void (*tile)(struct nvkm_engine *, int region, struct nvkm_fb_tile *);
  24         bool (*chsw_load)(struct nvkm_engine *);
  25
  26         struct {
  27                 int (*sclass)(struct nvkm_oclass *, int index,
  28                               const struct nvkm_device_oclass **);
  29         } base;
  30
  31         struct {
  32                 int (*cclass)(struct nvkm_fifo_chan *,
  33                               const struct nvkm_oclass *,
  34                               struct nvkm_object **);
  35                 int (*sclass)(struct nvkm_oclass *, int index);
  36         } fifo;
  37
  38         const struct nvkm_object_func *cclass;
  39         struct nvkm_sclass sclass[];
  40 };
  41
  42 int nvkm_engine_ctor(const struct nvkm_engine_func *, struct nvkm_device *,
  43                      int index, bool enable, struct nvkm_engine *);
  44 int nvkm_engine_new_(const struct nvkm_engine_func *, struct nvkm_device *,
  45                      int index, bool enable, struct nvkm_engine **);
  46 struct nvkm_engine *nvkm_engine_ref(struct nvkm_engine *);
  47 void nvkm_engine_unref(struct nvkm_engine **);
  48 void nvkm_engine_tile(struct nvkm_engine *, int region);
  49 bool nvkm_engine_chsw_load(struct nvkm_engine *);
  50 #endif