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

   1 #ifndef __NVKM_ENGINE_H__
   2 #define __NVKM_ENGINE_H__
   3 #include <core/subdev.h>
   4
   5 #define NV_ENGINE_(eng,var) (NV_ENGINE_CLASS | ((var) << 8) | (eng))
   6 #define NV_ENGINE(name,var)  NV_ENGINE_(NVDEV_ENGINE_##name, (var))
   7
   8 struct nvkm_engine {
   9         struct nvkm_subdev subdev;
  10         struct nvkm_oclass *cclass;
  11         struct nvkm_oclass *sclass;
  12
  13         struct list_head contexts;
  14         spinlock_t lock;
  15
  16         void (*tile_prog)(struct nvkm_engine *, int region);
  17         int  (*tlb_flush)(struct nvkm_engine *);
  18 };
  19
  20 static inline struct nvkm_engine *
  21 nv_engine(void *obj)
  22 {
  23 #if CONFIG_NOUVEAU_DEBUG >= NV_DBG_PARANOIA
  24         if (unlikely(!nv_iclass(obj, NV_ENGINE_CLASS)))
  25                 nv_assert("BAD CAST -> NvEngine, %08x", nv_hclass(obj));
  26 #endif
  27         return obj;
  28 }
  29
  30 static inline int
  31 nv_engidx(struct nvkm_engine *engine)
  32 {
  33         return nv_subidx(&engine->subdev);
  34 }
  35
  36 struct nvkm_engine *nvkm_engine(void *obj, int idx);
  37
  38 #define nvkm_engine_create(p,e,c,d,i,f,r)                                   \
  39         nvkm_engine_create_((p), (e), (c), (d), (i), (f),                   \
  40                                sizeof(**r),(void **)r)
  41
  42 #define nvkm_engine_destroy(p)                                              \
  43         nvkm_subdev_destroy(&(p)->subdev)
  44 #define nvkm_engine_init(p)                                                 \
  45         nvkm_subdev_init(&(p)->subdev)
  46 #define nvkm_engine_fini(p,s)                                               \
  47         nvkm_subdev_fini(&(p)->subdev, (s))
  48
  49 int nvkm_engine_create_(struct nvkm_object *, struct nvkm_object *,
  50                            struct nvkm_oclass *, bool, const char *,
  51                            const char *, int, void **);
  52
  53 #define _nvkm_engine_dtor _nvkm_subdev_dtor
  54 #define _nvkm_engine_init _nvkm_subdev_init
  55 #define _nvkm_engine_fini _nvkm_subdev_fini
  56 #endif