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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __NVIF_OBJECT_H__
   3 #define __NVIF_OBJECT_H__
   4
   5 #include <nvif/os.h>
   6
   7 struct nvif_sclass {
   8         s32 oclass;
   9         int minver;
  10         int maxver;
  11 };
  12
  13 struct nvif_object {
  14         struct nvif_client *client;
  15         u32 handle;
  16         s32 oclass;
  17         void *priv; /*XXX: hack */
  18         struct {
  19                 void __iomem *ptr;
  20                 u32 size;
  21         } map;
  22 };
  23
  24 int  nvif_object_init(struct nvif_object *, u32 handle, s32 oclass, void *, u32,
  25                       struct nvif_object *);
  26 void nvif_object_fini(struct nvif_object *);
  27 int  nvif_object_ioctl(struct nvif_object *, void *, u32, void **);
  28 int  nvif_object_sclass_get(struct nvif_object *, struct nvif_sclass **);
  29 void nvif_object_sclass_put(struct nvif_sclass **);
  30 u32  nvif_object_rd(struct nvif_object *, int, u64);
  31 void nvif_object_wr(struct nvif_object *, int, u64, u32);
  32 int  nvif_object_mthd(struct nvif_object *, u32, void *, u32);
  33 int  nvif_object_map(struct nvif_object *);
  34 void nvif_object_unmap(struct nvif_object *);
  35
  36 #define nvif_handle(a) (unsigned long)(void *)(a)
  37 #define nvif_object(a) (a)->object
  38
  39 #define nvif_rd(a,f,b,c) ({                                                    \
  40         struct nvif_object *_object = (a);                                     \
  41         u32 _data;                                                             \
  42         if (likely(_object->map.ptr))                                          \
  43                 _data = f((u8 __iomem *)_object->map.ptr + (c));               \
  44         else                                                                   \
  45                 _data = nvif_object_rd(_object, (b), (c));                     \
  46         _data;                                                                 \
  47 })
  48 #define nvif_wr(a,f,b,c,d) ({                                                  \
  49         struct nvif_object *_object = (a);                                     \
  50         if (likely(_object->map.ptr))                                          \
  51                 f((d), (u8 __iomem *)_object->map.ptr + (c));                  \
  52         else                                                                   \
  53                 nvif_object_wr(_object, (b), (c), (d));                        \
  54 })
  55 #define nvif_rd08(a,b) ({ ((u8)nvif_rd((a), ioread8, 1, (b))); })
  56 #define nvif_rd16(a,b) ({ ((u16)nvif_rd((a), ioread16_native, 2, (b))); })
  57 #define nvif_rd32(a,b) ({ ((u32)nvif_rd((a), ioread32_native, 4, (b))); })
  58 #define nvif_wr08(a,b,c) nvif_wr((a), iowrite8, 1, (b), (u8)(c))
  59 #define nvif_wr16(a,b,c) nvif_wr((a), iowrite16_native, 2, (b), (u16)(c))
  60 #define nvif_wr32(a,b,c) nvif_wr((a), iowrite32_native, 4, (b), (u32)(c))
  61 #define nvif_mask(a,b,c,d) ({                                                  \
  62         struct nvif_object *__object = (a);                                    \
  63         u32 _addr = (b), _data = nvif_rd32(__object, _addr);                   \
  64         nvif_wr32(__object, _addr, (_data & ~(c)) | (d));                      \
  65         _data;                                                                 \
  66 })
  67
  68 #define nvif_mthd(a,b,c,d) nvif_object_mthd((a), (b), (c), (d))
  69
  70 struct nvif_mclass {
  71         s32 oclass;
  72         int version;
  73 };
  74
  75 #define nvif_mclass(o,m) ({                                                    \
  76         struct nvif_object *object = (o);                                      \
  77         struct nvif_sclass *sclass;                                            \
  78         const typeof(m[0]) *mclass = (m);                                      \
  79         int ret = -ENODEV;                                                     \
  80         int cnt, i, j;                                                         \
  81                                                                                \
  82         cnt = nvif_object_sclass_get(object, &sclass);                         \
  83         if (cnt >= 0) {                                                        \
  84                 for (i = 0; ret < 0 && mclass[i].oclass; i++) {                \
  85                         for (j = 0; j < cnt; j++) {                            \
  86                                 if (mclass[i].oclass  == sclass[j].oclass &&   \
  87                                     mclass[i].version >= sclass[j].minver &&   \
  88                                     mclass[i].version <= sclass[j].maxver) {   \
  89                                         ret = i;                               \
  90                                         break;                                 \
  91                                 }                                              \
  92                         }                                                      \
  93                 }                                                              \
  94                 nvif_object_sclass_put(&sclass);                               \
  95         }                                                                      \
  96         ret;                                                                   \
  97 })
  98
  99 /*XXX*/
 100 #include <core/object.h>
 101 #define nvxx_object(a) ({                                                      \
 102         struct nvif_object *_object = (a);                                     \
 103         (struct nvkm_object *)_object->priv;                                   \
 104 })
 105 #endif