1 #ifndef __NOUVEAU_BO_H__
2 #define __NOUVEAU_BO_H__
3
4 #include <drm/drm_gem.h>
5
6 struct nouveau_channel;
7 struct nouveau_fence;
8 struct nouveau_vma;
9
10 struct nouveau_bo {
11 struct ttm_buffer_object bo;
12 struct ttm_placement placement;
13 u32 valid_domains;
14 struct ttm_place placements[3];
15 struct ttm_place busy_placements[3];
16 struct ttm_bo_kmap_obj kmap;
17 struct list_head head;
18
19 /* protected by ttm_bo_reserve() */
20 struct drm_file *reserved_by;
21 struct list_head entry;
22 int pbbo_index;
23 bool validate_mapped;
24
25 struct list_head vma_list;
26 unsigned page_shift;
27
28 u32 tile_mode;
29 u32 tile_flags;
30 struct nouveau_drm_tile *tile;
31
32 /* Only valid if allocated via nouveau_gem_new() and iff you hold a
33 * gem reference to it! For debugging, use gem.filp != NULL to test
34 * whether it is valid. */
35 struct drm_gem_object gem;
36
37 /* protect by the ttm reservation lock */
38 int pin_refcnt;
39
40 struct ttm_bo_kmap_obj dma_buf_vmap;
41 };
42
43 static inline struct nouveau_bo *
nouveau_bo(struct ttm_buffer_object * bo)44 nouveau_bo(struct ttm_buffer_object *bo)
45 {
46 return container_of(bo, struct nouveau_bo, bo);
47 }
48
49 static inline int
nouveau_bo_ref(struct nouveau_bo * ref,struct nouveau_bo ** pnvbo)50 nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
51 {
52 struct nouveau_bo *prev;
53
54 if (!pnvbo)
55 return -EINVAL;
56 prev = *pnvbo;
57
58 *pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
59 if (prev) {
60 struct ttm_buffer_object *bo = &prev->bo;
61
62 ttm_bo_unref(&bo);
63 }
64
65 return 0;
66 }
67
68 extern struct ttm_bo_driver nouveau_bo_driver;
69
70 void nouveau_bo_move_init(struct nouveau_drm *);
71 int nouveau_bo_new(struct drm_device *, int size, int align, u32 flags,
72 u32 tile_mode, u32 tile_flags, struct sg_table *sg,
73 struct reservation_object *robj,
74 struct nouveau_bo **);
75 int nouveau_bo_pin(struct nouveau_bo *, u32 flags);
76 int nouveau_bo_unpin(struct nouveau_bo *);
77 int nouveau_bo_map(struct nouveau_bo *);
78 void nouveau_bo_unmap(struct nouveau_bo *);
79 void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
80 u16 nouveau_bo_rd16(struct nouveau_bo *, unsigned index);
81 void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val);
82 u32 nouveau_bo_rd32(struct nouveau_bo *, unsigned index);
83 void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val);
84 void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *, bool exclusive);
85 int nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
86 bool no_wait_gpu);
87
88 struct nouveau_vma *
89 nouveau_bo_vma_find(struct nouveau_bo *, struct nouveau_vm *);
90
91 int nouveau_bo_vma_add(struct nouveau_bo *, struct nouveau_vm *,
92 struct nouveau_vma *);
93 void nouveau_bo_vma_del(struct nouveau_bo *, struct nouveau_vma *);
94
95 /* TODO: submit equivalent to TTM generic API upstream? */
96 static inline void __iomem *
nvbo_kmap_obj_iovirtual(struct nouveau_bo * nvbo)97 nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
98 {
99 bool is_iomem;
100 void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
101 &nvbo->kmap, &is_iomem);
102 WARN_ON_ONCE(ioptr && !is_iomem);
103 return ioptr;
104 }
105
106 #endif
107