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