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 static inline bool
  26 nvif_object_constructed(struct nvif_object *object)
  27 {
  28         return object->client != NULL;
  29 }
  30
  31 int  nvif_object_ctor(struct nvif_object *, const char *name, u32 handle,
  32                       s32 oclass, void *, u32, struct nvif_object *);
  33 void nvif_object_dtor(struct nvif_object *);
  34 int  nvif_object_ioctl(struct nvif_object *, void *, u32, void **);
  35 int  nvif_object_sclass_get(struct nvif_object *, struct nvif_sclass **);
  36 void nvif_object_sclass_put(struct nvif_sclass **);
  37 int  nvif_object_mthd(struct nvif_object *, u32, void *, u32);
  38 int  nvif_object_map_handle(struct nvif_object *, void *, u32,
  39                             u64 *handle, u64 *length);
  40 void nvif_object_unmap_handle(struct nvif_object *);
  41 int  nvif_object_map(struct nvif_object *, void *, u32);
  42 void nvif_object_unmap(struct nvif_object *);
  43
  44 #define nvif_handle(a) (unsigned long)(void *)(a)
  45 #define nvif_object(a) (a)->object
  46
  47 #define nvif_rd(a,f,b,c) ({                                                    \
  48         u32 _data = f((u8 __iomem *)(a)->map.ptr + (c));                       \
  49         _data;                                                                 \
  50 })
  51 #define nvif_wr(a,f,b,c,d) ({                                                  \
  52         f((d), (u8 __iomem *)(a)->map.ptr + (c));                              \
  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         typeof(a) __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         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 #define nvif_sclass(o,m,u) ({                                                  \
  99         const typeof(m[0]) *_mclass = (m);                                     \
 100         s32 _oclass = (u);                                                     \
 101         int _cid;                                                              \
 102         if (_oclass) {                                                         \
 103                 for (_cid = 0; _mclass[_cid].oclass; _cid++) {                 \
 104                         if (_mclass[_cid].oclass == _oclass)                   \
 105                                 break;                                         \
 106                 }                                                              \
 107                 _cid = _mclass[_cid].oclass ? _cid : -ENOSYS;                  \
 108         } else {                                                               \
 109                 _cid = nvif_mclass((o), _mclass);                              \
 110         }                                                                      \
 111         _cid;                                                                  \
 112 })
 113
 114 #define NVIF_RD32_(p,o,dr)   nvif_rd32((p), (o) + (dr))
 115 #define NVIF_WR32_(p,o,dr,f) nvif_wr32((p), (o) + (dr), (f))
 116 #define NVIF_RD32(p,A...) DRF_RD(NVIF_RD32_,                  (p), 0, ##A)
 117 #define NVIF_RV32(p,A...) DRF_RV(NVIF_RD32_,                  (p), 0, ##A)
 118 #define NVIF_TV32(p,A...) DRF_TV(NVIF_RD32_,                  (p), 0, ##A)
 119 #define NVIF_TD32(p,A...) DRF_TD(NVIF_RD32_,                  (p), 0, ##A)
 120 #define NVIF_WR32(p,A...) DRF_WR(            NVIF_WR32_,      (p), 0, ##A)
 121 #define NVIF_WV32(p,A...) DRF_WV(            NVIF_WR32_,      (p), 0, ##A)
 122 #define NVIF_WD32(p,A...) DRF_WD(            NVIF_WR32_,      (p), 0, ##A)
 123 #define NVIF_MR32(p,A...) DRF_MR(NVIF_RD32_, NVIF_WR32_, u32, (p), 0, ##A)
 124 #define NVIF_MV32(p,A...) DRF_MV(NVIF_RD32_, NVIF_WR32_, u32, (p), 0, ##A)
 125 #define NVIF_MD32(p,A...) DRF_MD(NVIF_RD32_, NVIF_WR32_, u32, (p), 0, ##A)
 126 #endif