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

   1 /* SPDX-License-Identifier: MIT */
   2 #ifndef __NVIF_OBJECT_H__
   3 #define __NVIF_OBJECT_H__
   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_parent *parent;
  14         struct nvif_client *client;
  15         const char *name;
  16         u32 handle;
  17         s32 oclass;
  18         void *priv; /*XXX: hack */
  19         struct {
  20                 void __iomem *ptr;
  21                 u64 size;
  22         } map;
  23 };
  24
  25 int  nvif_object_ctor(struct nvif_object *, const char *name, u32 handle,
  26                       s32 oclass, void *, u32, struct nvif_object *);
  27 void nvif_object_dtor(struct nvif_object *);
  28 int  nvif_object_ioctl(struct nvif_object *, void *, u32, void **);
  29 int  nvif_object_sclass_get(struct nvif_object *, struct nvif_sclass **);
  30 void nvif_object_sclass_put(struct nvif_sclass **);
  31 u32  nvif_object_rd(struct nvif_object *, int, u64);
  32 void nvif_object_wr(struct nvif_object *, int, u64, u32);
  33 int  nvif_object_mthd(struct nvif_object *, u32, void *, u32);
  34 int  nvif_object_map_handle(struct nvif_object *, void *, u32,
  35                             u64 *handle, u64 *length);
  36 void nvif_object_unmap_handle(struct nvif_object *);
  37 int  nvif_object_map(struct nvif_object *, void *, u32);
  38 void nvif_object_unmap(struct nvif_object *);
  39
  40 #define nvif_handle(a) (unsigned long)(void *)(a)
  41 #define nvif_object(a) (a)->object
  42
  43 #define nvif_rd(a,f,b,c) ({                                                    \
  44         struct nvif_object *_object = (a);                                     \
  45         u32 _data;                                                             \
  46         if (likely(_object->map.ptr))                                          \
  47                 _data = f((u8 __iomem *)_object->map.ptr + (c));               \
  48         else                                                                   \
  49                 _data = nvif_object_rd(_object, (b), (c));                     \
  50         _data;                                                                 \
  51 })
  52 #define nvif_wr(a,f,b,c,d) ({                                                  \
  53         struct nvif_object *_object = (a);                                     \
  54         if (likely(_object->map.ptr))                                          \
  55                 f((d), (u8 __iomem *)_object->map.ptr + (c));                  \
  56         else                                                                   \
  57                 nvif_object_wr(_object, (b), (c), (d));                        \
  58 })
  59 #define nvif_rd08(a,b) ({ ((u8)nvif_rd((a), ioread8, 1, (b))); })
  60 #define nvif_rd16(a,b) ({ ((u16)nvif_rd((a), ioread16_native, 2, (b))); })
  61 #define nvif_rd32(a,b) ({ ((u32)nvif_rd((a), ioread32_native, 4, (b))); })
  62 #define nvif_wr08(a,b,c) nvif_wr((a), iowrite8, 1, (b), (u8)(c))
  63 #define nvif_wr16(a,b,c) nvif_wr((a), iowrite16_native, 2, (b), (u16)(c))
  64 #define nvif_wr32(a,b,c) nvif_wr((a), iowrite32_native, 4, (b), (u32)(c))
  65 #define nvif_mask(a,b,c,d) ({                                                  \
  66         struct nvif_object *__object = (a);                                    \
  67         u32 _addr = (b), _data = nvif_rd32(__object, _addr);                   \
  68         nvif_wr32(__object, _addr, (_data & ~(c)) | (d));                      \
  69         _data;                                                                 \
  70 })
  71
  72 #define nvif_mthd(a,b,c,d) nvif_object_mthd((a), (b), (c), (d))
  73
  74 struct nvif_mclass {
  75         s32 oclass;
  76         int version;
  77 };
  78
  79 #define nvif_mclass(o,m) ({                                                    \
  80         struct nvif_object *object = (o);                                      \
  81         struct nvif_sclass *sclass;                                            \
  82         typeof(m[0]) *mclass = (m);                                            \
  83         int ret = -ENODEV;                                                     \
  84         int cnt, i, j;                                                         \
  85                                                                                \
  86         cnt = nvif_object_sclass_get(object, &sclass);                         \
  87         if (cnt >= 0) {                                                        \
  88                 for (i = 0; ret < 0 && mclass[i].oclass; i++) {                \
  89                         for (j = 0; j < cnt; j++) {                            \
  90                                 if (mclass[i].oclass  == sclass[j].oclass &&   \
  91                                     mclass[i].version >= sclass[j].minver &&   \
  92                                     mclass[i].version <= sclass[j].maxver) {   \
  93                                         ret = i;                               \
  94                                         break;                                 \
  95                                 }                                              \
  96                         }                                                      \
  97                 }                                                              \
  98                 nvif_object_sclass_put(&sclass);                               \
  99         }                                                                      \
 100         ret;                                                                   \
 101 })
 102
 103 #define nvif_sclass(o,m,u) ({                                                  \
 104         const typeof(m[0]) *_mclass = (m);                                     \
 105         s32 _oclass = (u);                                                     \
 106         int _cid;                                                              \
 107         if (_oclass) {                                                         \
 108                 for (_cid = 0; _mclass[_cid].oclass; _cid++) {                 \
 109                         if (_mclass[_cid].oclass == _oclass)                   \
 110                                 break;                                         \
 111                 }                                                              \
 112                 _cid = _mclass[_cid].oclass ? _cid : -ENOSYS;                  \
 113         } else {                                                               \
 114                 _cid = nvif_mclass((o), _mclass);                              \
 115         }                                                                      \
 116         _cid;                                                                  \
 117 })
 118
 119 #define NVIF_RD32_(p,o,dr)   nvif_rd32((p), (o) + (dr))
 120 #define NVIF_WR32_(p,o,dr,f) nvif_wr32((p), (o) + (dr), (f))
 121 #define NVIF_RD32(p,A...) DRF_RD(NVIF_RD32_,                  (p), 0, ##A)
 122 #define NVIF_RV32(p,A...) DRF_RV(NVIF_RD32_,                  (p), 0, ##A)
 123 #define NVIF_TV32(p,A...) DRF_TV(NVIF_RD32_,                  (p), 0, ##A)
 124 #define NVIF_TD32(p,A...) DRF_TD(NVIF_RD32_,                  (p), 0, ##A)
 125 #define NVIF_WR32(p,A...) DRF_WR(            NVIF_WR32_,      (p), 0, ##A)
 126 #define NVIF_WV32(p,A...) DRF_WV(            NVIF_WR32_,      (p), 0, ##A)
 127 #define NVIF_WD32(p,A...) DRF_WD(            NVIF_WR32_,      (p), 0, ##A)
 128 #define NVIF_MR32(p,A...) DRF_MR(NVIF_RD32_, NVIF_WR32_, u32, (p), 0, ##A)
 129 #define NVIF_MV32(p,A...) DRF_MV(NVIF_RD32_, NVIF_WR32_, u32, (p), 0, ##A)
 130 #define NVIF_MD32(p,A...) DRF_MD(NVIF_RD32_, NVIF_WR32_, u32, (p), 0, ##A)
 131
 132 /*XXX*/
 133 #include <core/object.h>
 134 #define nvxx_object(a) ({                                                      \
 135         struct nvif_object *_object = (a);                                     \
 136         (struct nvkm_object *)_object->priv;                                   \
 137 })
 138 #endif