1  #ifndef __NVIF_MMU_H__
2  #define __NVIF_MMU_H__
3  #include <nvif/object.h>
4  
5  struct nvif_mmu {
6  	struct nvif_object object;
7  	u8  dmabits;
8  	u8  heap_nr;
9  	u8  type_nr;
10  	u8  kind_inv;
11  	u16 kind_nr;
12  	s32 mem;
13  
14  	struct {
15  		u64 size;
16  	} *heap;
17  
18  	struct {
19  #define NVIF_MEM_VRAM                                                      0x01
20  #define NVIF_MEM_HOST                                                      0x02
21  #define NVIF_MEM_COMP                                                      0x04
22  #define NVIF_MEM_DISP                                                      0x08
23  #define NVIF_MEM_KIND                                                      0x10
24  #define NVIF_MEM_MAPPABLE                                                  0x20
25  #define NVIF_MEM_COHERENT                                                  0x40
26  #define NVIF_MEM_UNCACHED                                                  0x80
27  		u8 type;
28  		u8 heap;
29  	} *type;
30  
31  	u8 *kind;
32  };
33  
34  int nvif_mmu_ctor(struct nvif_object *, const char *name, s32 oclass,
35  		  struct nvif_mmu *);
36  void nvif_mmu_dtor(struct nvif_mmu *);
37  
38  static inline bool
nvif_mmu_kind_valid(struct nvif_mmu * mmu,u8 kind)39  nvif_mmu_kind_valid(struct nvif_mmu *mmu, u8 kind)
40  {
41  	if (kind) {
42  		if (kind >= mmu->kind_nr || mmu->kind[kind] == mmu->kind_inv)
43  			return false;
44  	}
45  	return true;
46  }
47  
48  static inline int
nvif_mmu_type(struct nvif_mmu * mmu,u8 mask)49  nvif_mmu_type(struct nvif_mmu *mmu, u8 mask)
50  {
51  	int i;
52  	for (i = 0; i < mmu->type_nr; i++) {
53  		if ((mmu->type[i].type & mask) == mask)
54  			return i;
55  	}
56  	return -EINVAL;
57  }
58  #endif
59