hc
2023-02-13 e440ec23c5a540cdd3f7464e8779219be6fd3d95
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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NVIF_OBJECT_H__
#define __NVIF_OBJECT_H__
 
#include <nvif/os.h>
 
struct nvif_sclass {
   s32 oclass;
   int minver;
   int maxver;
};
 
struct nvif_object {
   struct nvif_client *client;
   u32 handle;
   s32 oclass;
   void *priv; /*XXX: hack */
   struct {
       void __iomem *ptr;
       u64 size;
   } map;
};
 
int  nvif_object_init(struct nvif_object *, u32 handle, s32 oclass, void *, u32,
             struct nvif_object *);
void nvif_object_fini(struct nvif_object *);
int  nvif_object_ioctl(struct nvif_object *, void *, u32, void **);
int  nvif_object_sclass_get(struct nvif_object *, struct nvif_sclass **);
void nvif_object_sclass_put(struct nvif_sclass **);
u32  nvif_object_rd(struct nvif_object *, int, u64);
void nvif_object_wr(struct nvif_object *, int, u64, u32);
int  nvif_object_mthd(struct nvif_object *, u32, void *, u32);
int  nvif_object_map_handle(struct nvif_object *, void *, u32,
               u64 *handle, u64 *length);
void nvif_object_unmap_handle(struct nvif_object *);
int  nvif_object_map(struct nvif_object *, void *, u32);
void nvif_object_unmap(struct nvif_object *);
 
#define nvif_handle(a) (unsigned long)(void *)(a)
#define nvif_object(a) (a)->object
 
#define nvif_rd(a,f,b,c) ({                                                    \
   struct nvif_object *_object = (a);                                     \
   u32 _data;                                                             \
   if (likely(_object->map.ptr))                                          \
       _data = f((u8 __iomem *)_object->map.ptr + (c));               \
   else                                                                   \
       _data = nvif_object_rd(_object, (b), (c));                     \
   _data;                                                                 \
})
#define nvif_wr(a,f,b,c,d) ({                                                  \
   struct nvif_object *_object = (a);                                     \
   if (likely(_object->map.ptr))                                          \
       f((d), (u8 __iomem *)_object->map.ptr + (c));                  \
   else                                                                   \
       nvif_object_wr(_object, (b), (c), (d));                        \
})
#define nvif_rd08(a,b) ({ ((u8)nvif_rd((a), ioread8, 1, (b))); })
#define nvif_rd16(a,b) ({ ((u16)nvif_rd((a), ioread16_native, 2, (b))); })
#define nvif_rd32(a,b) ({ ((u32)nvif_rd((a), ioread32_native, 4, (b))); })
#define nvif_wr08(a,b,c) nvif_wr((a), iowrite8, 1, (b), (u8)(c))
#define nvif_wr16(a,b,c) nvif_wr((a), iowrite16_native, 2, (b), (u16)(c))
#define nvif_wr32(a,b,c) nvif_wr((a), iowrite32_native, 4, (b), (u32)(c))
#define nvif_mask(a,b,c,d) ({                                                  \
   struct nvif_object *__object = (a);                                    \
   u32 _addr = (b), _data = nvif_rd32(__object, _addr);                   \
   nvif_wr32(__object, _addr, (_data & ~(c)) | (d));                      \
   _data;                                                                 \
})
 
#define nvif_mthd(a,b,c,d) nvif_object_mthd((a), (b), (c), (d))
 
struct nvif_mclass {
   s32 oclass;
   int version;
};
 
#define nvif_mclass(o,m) ({                                                    \
   struct nvif_object *object = (o);                                      \
   struct nvif_sclass *sclass;                                            \
   typeof(m[0]) *mclass = (m);                                            \
   int ret = -ENODEV;                                                     \
   int cnt, i, j;                                                         \
                                                                               \
   cnt = nvif_object_sclass_get(object, &sclass);                         \
   if (cnt >= 0) {                                                        \
       for (i = 0; ret < 0 && mclass[i].oclass; i++) {                \
           for (j = 0; j < cnt; j++) {                            \
               if (mclass[i].oclass  == sclass[j].oclass &&   \
                   mclass[i].version >= sclass[j].minver &&   \
                   mclass[i].version <= sclass[j].maxver) {   \
                   ret = i;                               \
                   break;                                 \
               }                                              \
           }                                                      \
       }                                                              \
       nvif_object_sclass_put(&sclass);                               \
   }                                                                      \
   ret;                                                                   \
})
 
#define nvif_sclass(o,m,u) ({                                                  \
   const typeof(m[0]) *_mclass = (m);                                     \
   s32 _oclass = (u);                                                     \
   int _cid;                                                              \
   if (_oclass) {                                                         \
       for (_cid = 0; _mclass[_cid].oclass; _cid++) {                 \
           if (_mclass[_cid].oclass == _oclass)                   \
               break;                                         \
       }                                                              \
       _cid = _mclass[_cid].oclass ? _cid : -ENOSYS;                  \
   } else {                                                               \
       _cid = nvif_mclass((o), _mclass);                              \
   }                                                                      \
   _cid;                                                                  \
})
 
/*XXX*/
#include <core/object.h>
#define nvxx_object(a) ({                                                      \
   struct nvif_object *_object = (a);                                     \
   (struct nvkm_object *)_object->priv;                                   \
})
#endif