1 #ifndef __NOUVEAU_BO_H__
2 #define __NOUVEAU_BO_H__
3 
4 struct nouveau_channel;
5 struct nouveau_fence;
6 struct nouveau_vma;
7 
8 struct nouveau_bo {
9 	struct ttm_buffer_object bo;
10 	struct ttm_placement placement;
11 	u32 valid_domains;
12 	u32 placements[3];
13 	u32 busy_placements[3];
14 	struct ttm_bo_kmap_obj kmap;
15 	struct list_head head;
16 
17 	/* protected by ttm_bo_reserve() */
18 	struct drm_file *reserved_by;
19 	struct list_head entry;
20 	int pbbo_index;
21 	bool validate_mapped;
22 
23 	struct list_head vma_list;
24 	unsigned page_shift;
25 
26 	u32 tile_mode;
27 	u32 tile_flags;
28 	struct nouveau_drm_tile *tile;
29 
30 	struct drm_gem_object *gem;
31 
32 	/* protect by the ttm reservation lock */
33 	int pin_refcnt;
34 
35 	struct ttm_bo_kmap_obj dma_buf_vmap;
36 };
37 
38 static inline struct nouveau_bo *
39 nouveau_bo(struct ttm_buffer_object *bo)
40 {
41 	return container_of(bo, struct nouveau_bo, bo);
42 }
43 
44 static inline int
45 nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
46 {
47 	struct nouveau_bo *prev;
48 
49 	if (!pnvbo)
50 		return -EINVAL;
51 	prev = *pnvbo;
52 
53 	*pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
54 	if (prev) {
55 		struct ttm_buffer_object *bo = &prev->bo;
56 
57 		ttm_bo_unref(&bo);
58 	}
59 
60 	return 0;
61 }
62 
63 extern struct ttm_bo_driver nouveau_bo_driver;
64 
65 void nouveau_bo_move_init(struct nouveau_drm *);
66 int  nouveau_bo_new(struct drm_device *, int size, int align, u32 flags,
67 		    u32 tile_mode, u32 tile_flags, struct sg_table *sg,
68 		    struct nouveau_bo **);
69 int  nouveau_bo_pin(struct nouveau_bo *, u32 flags);
70 int  nouveau_bo_unpin(struct nouveau_bo *);
71 int  nouveau_bo_map(struct nouveau_bo *);
72 void nouveau_bo_unmap(struct nouveau_bo *);
73 void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
74 u16  nouveau_bo_rd16(struct nouveau_bo *, unsigned index);
75 void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val);
76 u32  nouveau_bo_rd32(struct nouveau_bo *, unsigned index);
77 void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val);
78 void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *);
79 int  nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
80 			 bool no_wait_gpu);
81 
82 struct nouveau_vma *
83 nouveau_bo_vma_find(struct nouveau_bo *, struct nouveau_vm *);
84 
85 int  nouveau_bo_vma_add(struct nouveau_bo *, struct nouveau_vm *,
86 			struct nouveau_vma *);
87 void nouveau_bo_vma_del(struct nouveau_bo *, struct nouveau_vma *);
88 
89 /* TODO: submit equivalent to TTM generic API upstream? */
90 static inline void __iomem *
91 nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
92 {
93 	bool is_iomem;
94 	void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
95 						&nvbo->kmap, &is_iomem);
96 	WARN_ON_ONCE(ioptr && !is_iomem);
97 	return ioptr;
98 }
99 
100 #endif
101