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