root/drivers/gpu/drm/nouveau/include/nvkm/core/gpuobj.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: MIT */
   2 #ifndef __NVKM_GPUOBJ_H__
   3 #define __NVKM_GPUOBJ_H__
   4 #include <core/memory.h>
   5 #include <core/mm.h>
   6 
   7 #define NVOBJ_FLAG_ZERO_ALLOC 0x00000001
   8 #define NVOBJ_FLAG_HEAP       0x00000004
   9 
  10 struct nvkm_gpuobj {
  11         union {
  12                 const struct nvkm_gpuobj_func *func;
  13                 const struct nvkm_gpuobj_func *ptrs;
  14         };
  15         struct nvkm_gpuobj *parent;
  16         struct nvkm_memory *memory;
  17         struct nvkm_mm_node *node;
  18 
  19         u64 addr;
  20         u32 size;
  21         struct nvkm_mm heap;
  22 
  23         void __iomem *map;
  24 };
  25 
  26 struct nvkm_gpuobj_func {
  27         void *(*acquire)(struct nvkm_gpuobj *);
  28         void (*release)(struct nvkm_gpuobj *);
  29         u32 (*rd32)(struct nvkm_gpuobj *, u32 offset);
  30         void (*wr32)(struct nvkm_gpuobj *, u32 offset, u32 data);
  31         int (*map)(struct nvkm_gpuobj *, u64 offset, struct nvkm_vmm *,
  32                    struct nvkm_vma *, void *argv, u32 argc);
  33 };
  34 
  35 int nvkm_gpuobj_new(struct nvkm_device *, u32 size, int align, bool zero,
  36                     struct nvkm_gpuobj *parent, struct nvkm_gpuobj **);
  37 void nvkm_gpuobj_del(struct nvkm_gpuobj **);
  38 int nvkm_gpuobj_wrap(struct nvkm_memory *, struct nvkm_gpuobj **);
  39 void nvkm_gpuobj_memcpy_to(struct nvkm_gpuobj *dst, u32 dstoffset, void *src,
  40                            u32 length);
  41 void nvkm_gpuobj_memcpy_from(void *dst, struct nvkm_gpuobj *src, u32 srcoffset,
  42                              u32 length);
  43 #endif