drivers/gpu/drm/nouveau/include/nvif/object.h

   1 #ifndef __NVIF_OBJECT_H__
   2 #define __NVIF_OBJECT_H__
   3
   4 #include <nvif/os.h>
   5
   6 struct nvif_sclass {
   7         s32 oclass;
   8         int minver;
   9         int maxver;
  10 };
  11
  12 struct nvif_object {
  13         struct nvif_client *client;
  14         u32 handle;
  15         s32 oclass;
  16         void *priv; /*XXX: hack */
  17         struct {
  18                 void __iomem *ptr;
  19                 u32 size;
  20         } map;
  21 };
  22
  23 int  nvif_object_init(struct nvif_object *, u32 handle, s32 oclass, void *, u32,
  24                       struct nvif_object *);
  25 void nvif_object_fini(struct nvif_object *);
  26 int  nvif_object_ioctl(struct nvif_object *, void *, u32, void **);
  27 int  nvif_object_sclass_get(struct nvif_object *, struct nvif_sclass **);
  28 void nvif_object_sclass_put(struct nvif_sclass **);
  29 u32  nvif_object_rd(struct nvif_object *, int, u64);
  30 void nvif_object_wr(struct nvif_object *, int, u64, u32);
  31 int  nvif_object_mthd(struct nvif_object *, u32, void *, u32);
  32 int  nvif_object_map(struct nvif_object *);
  33 void nvif_object_unmap(struct nvif_object *);
  34
  35 #define nvif_handle(a) (unsigned long)(void *)(a)
  36 #define nvif_object(a) (a)->object
  37
  38 #define nvif_rd(a,f,b,c) ({                                                    \
  39         struct nvif_object *_object = (a);                                     \
  40         u32 _data;                                                             \
  41         if (likely(_object->map.ptr))                                          \
  42                 _data = f((u8 __iomem *)_object->map.ptr + (c));               \
  43         else                                                                   \
  44                 _data = nvif_object_rd(_object, (b), (c));                     \
  45         _data;                                                                 \
  46 })
  47 #define nvif_wr(a,f,b,c,d) ({                                                  \
  48         struct nvif_object *_object = (a);                                     \
  49         if (likely(_object->map.ptr))                                          \
  50                 f((d), (u8 __iomem *)_object->map.ptr + (c));                  \
  51         else                                                                   \
  52                 nvif_object_wr(_object, (b), (c), (d));                        \
  53 })
  54 #define nvif_rd08(a,b) ({ ((u8)nvif_rd((a), ioread8, 1, (b))); })
  55 #define nvif_rd16(a,b) ({ ((u16)nvif_rd((a), ioread16_native, 2, (b))); })
  56 #define nvif_rd32(a,b) ({ ((u32)nvif_rd((a), ioread32_native, 4, (b))); })
  57 #define nvif_wr08(a,b,c) nvif_wr((a), iowrite8, 1, (b), (u8)(c))
  58 #define nvif_wr16(a,b,c) nvif_wr((a), iowrite16_native, 2, (b), (u16)(c))
  59 #define nvif_wr32(a,b,c) nvif_wr((a), iowrite32_native, 4, (b), (u32)(c))
  60 #define nvif_mask(a,b,c,d) ({                                                  \
  61         struct nvif_object *__object = (a);                                    \
  62         u32 _addr = (b), _data = nvif_rd32(__object, _addr);                   \
  63         nvif_wr32(__object, _addr, (_data & ~(c)) | (d));                      \
  64         _data;                                                                 \
  65 })
  66
  67 #define nvif_mthd(a,b,c,d) nvif_object_mthd((a), (b), (c), (d))
  68
  69 struct nvif_mclass {
  70         s32 oclass;
  71         int version;
  72 };
  73
  74 #define nvif_mclass(o,m) ({                                                    \
  75         struct nvif_object *object = (o);                                      \
  76         struct nvif_sclass *sclass;                                            \
  77         const typeof(m[0]) *mclass = (m);                                      \
  78         int ret = -ENODEV;                                                     \
  79         int cnt, i, j;                                                         \
  80                                                                                \
  81         cnt = nvif_object_sclass_get(object, &sclass);                         \
  82         if (cnt >= 0) {                                                        \
  83                 for (i = 0; ret < 0 && mclass[i].oclass; i++) {                \
  84                         for (j = 0; j < cnt; j++) {                            \
  85                                 if (mclass[i].oclass  == sclass[j].oclass &&   \
  86                                     mclass[i].version >= sclass[j].minver &&   \
  87                                     mclass[i].version <= sclass[j].maxver) {   \
  88                                         ret = i;                               \
  89                                         break;                                 \
  90                                 }                                              \
  91                         }                                                      \
  92                 }                                                              \
  93                 nvif_object_sclass_put(&sclass);                               \
  94         }                                                                      \
  95         ret;                                                                   \
  96 })
  97
  98 /*XXX*/
  99 #include <core/object.h>
 100 #define nvxx_object(a) ({                                                      \
 101         struct nvif_object *_object = (a);                                     \
 102         (struct nvkm_object *)_object->priv;                                   \
 103 })
 104 #endif