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 	/* Only valid if allocated via nouveau_gem_new() and iff you hold a
31 	 * gem reference to it! For debugging, use gem.filp != NULL to test
32 	 * whether it is valid. */
33 	struct drm_gem_object gem;
34 
35 	/* protect by the ttm reservation lock */
36 	int pin_refcnt;
37 
38 	struct ttm_bo_kmap_obj dma_buf_vmap;
39 };
40 
41 static inline struct nouveau_bo *
42 nouveau_bo(struct ttm_buffer_object *bo)
43 {
44 	return container_of(bo, struct nouveau_bo, bo);
45 }
46 
47 static inline int
48 nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
49 {
50 	struct nouveau_bo *prev;
51 
52 	if (!pnvbo)
53 		return -EINVAL;
54 	prev = *pnvbo;
55 
56 	*pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
57 	if (prev) {
58 		struct ttm_buffer_object *bo = &prev->bo;
59 
60 		ttm_bo_unref(&bo);
61 	}
62 
63 	return 0;
64 }
65 
66 extern struct ttm_bo_driver nouveau_bo_driver;
67 
68 void nouveau_bo_move_init(struct nouveau_drm *);
69 int  nouveau_bo_new(struct drm_device *, int size, int align, u32 flags,
70 		    u32 tile_mode, u32 tile_flags, struct sg_table *sg,
71 		    struct nouveau_bo **);
72 int  nouveau_bo_pin(struct nouveau_bo *, u32 flags);
73 int  nouveau_bo_unpin(struct nouveau_bo *);
74 int  nouveau_bo_map(struct nouveau_bo *);
75 void nouveau_bo_unmap(struct nouveau_bo *);
76 void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
77 u16  nouveau_bo_rd16(struct nouveau_bo *, unsigned index);
78 void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val);
79 u32  nouveau_bo_rd32(struct nouveau_bo *, unsigned index);
80 void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val);
81 void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *);
82 int  nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
83 			 bool no_wait_gpu);
84 
85 struct nouveau_vma *
86 nouveau_bo_vma_find(struct nouveau_bo *, struct nouveau_vm *);
87 
88 int  nouveau_bo_vma_add(struct nouveau_bo *, struct nouveau_vm *,
89 			struct nouveau_vma *);
90 void nouveau_bo_vma_del(struct nouveau_bo *, struct nouveau_vma *);
91 
92 /* TODO: submit equivalent to TTM generic API upstream? */
93 static inline void __iomem *
94 nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
95 {
96 	bool is_iomem;
97 	void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
98 						&nvbo->kmap, &is_iomem);
99 	WARN_ON_ONCE(ioptr && !is_iomem);
100 	return ioptr;
101 }
102 
103 #endif
104