drivers/gpu/drm/nouveau/core/include/subdev/instmem.h

   1 #ifndef __NOUVEAU_INSTMEM_H__
   2 #define __NOUVEAU_INSTMEM_H__
   3
   4 #include <core/subdev.h>
   5 #include <core/device.h>
   6 #include <core/mm.h>
   7
   8 struct nouveau_instobj {
   9         struct nouveau_object base;
  10         struct list_head head;
  11         u32 *suspend;
  12         u64 addr;
  13         u32 size;
  14 };
  15
  16 static inline struct nouveau_instobj *
  17 nv_memobj(void *obj)
  18 {
  19 #if CONFIG_NOUVEAU_DEBUG >= NV_DBG_PARANOIA
  20         if (unlikely(!nv_iclass(obj, NV_MEMOBJ_CLASS)))
  21                 nv_assert("BAD CAST -> NvMemObj, %08x", nv_hclass(obj));
  22 #endif
  23         return obj;
  24 }
  25
  26 struct nouveau_instmem {
  27         struct nouveau_subdev base;
  28         struct list_head list;
  29
  30         u32 reserved;
  31         int (*alloc)(struct nouveau_instmem *, struct nouveau_object *,
  32                      u32 size, u32 align, struct nouveau_object **);
  33 };
  34
  35 static inline struct nouveau_instmem *
  36 nouveau_instmem(void *obj)
  37 {
  38         /* nv04/nv40 impls need to create objects in their constructor,
  39          * which is before the subdev pointer is valid
  40          */
  41         if (nv_iclass(obj, NV_SUBDEV_CLASS) &&
  42             nv_subidx(obj) == NVDEV_SUBDEV_INSTMEM)
  43                 return obj;
  44
  45         return (void *)nouveau_subdev(obj, NVDEV_SUBDEV_INSTMEM);
  46 }
  47
  48 extern struct nouveau_oclass *nv04_instmem_oclass;
  49 extern struct nouveau_oclass *nv40_instmem_oclass;
  50 extern struct nouveau_oclass *nv50_instmem_oclass;
  51
  52 #endif