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      1 /*	$NetBSD: gpuobj.h,v 1.4 2021/12/18 23:45:33 riastradh Exp $	*/
      2 
      3 /* SPDX-License-Identifier: MIT */
      4 #ifndef __NVKM_GPUOBJ_H__
      5 #define __NVKM_GPUOBJ_H__
      6 #include <core/memory.h>
      7 #include <core/mm.h>
      8 
      9 #define NVOBJ_FLAG_ZERO_ALLOC 0x00000001
     10 #define NVOBJ_FLAG_HEAP       0x00000004
     11 
     12 #ifdef __NetBSD__
     13 #  define	__nvkm_gpuobj_iomem
     14 #  define	__iomem			__nvkm_gpuobj_iomem
     15 #endif
     16 
     17 struct nvkm_gpuobj {
     18 	union {
     19 		const struct nvkm_gpuobj_func *func;
     20 		const struct nvkm_gpuobj_func *ptrs;
     21 	};
     22 	struct nvkm_gpuobj *parent;
     23 	struct nvkm_memory *memory;
     24 	struct nvkm_mm_node *node;
     25 
     26 	u64 addr;
     27 	u32 size;
     28 	struct nvkm_mm heap;
     29 
     30 	void __iomem *map;
     31 };
     32 
     33 #ifdef __NetBSD__
     34 #  undef	__iomem
     35 #endif
     36 
     37 struct nvkm_gpuobj_func {
     38 	void *(*acquire)(struct nvkm_gpuobj *);
     39 	void (*release)(struct nvkm_gpuobj *);
     40 	u32 (*rd32)(struct nvkm_gpuobj *, u32 offset);
     41 	void (*wr32)(struct nvkm_gpuobj *, u32 offset, u32 data);
     42 	int (*map)(struct nvkm_gpuobj *, u64 offset, struct nvkm_vmm *,
     43 		   struct nvkm_vma *, void *argv, u32 argc);
     44 };
     45 
     46 int nvkm_gpuobj_new(struct nvkm_device *, u32 size, int align, bool zero,
     47 		    struct nvkm_gpuobj *parent, struct nvkm_gpuobj **);
     48 void nvkm_gpuobj_del(struct nvkm_gpuobj **);
     49 int nvkm_gpuobj_wrap(struct nvkm_memory *, struct nvkm_gpuobj **);
     50 void nvkm_gpuobj_memcpy_to(struct nvkm_gpuobj *dst, u32 dstoffset, void *src,
     51 			   u32 length);
     52 void nvkm_gpuobj_memcpy_from(void *dst, struct nvkm_gpuobj *src, u32 srcoffset,
     53 			     u32 length);
     54 #endif
     55