[go: nahoru, domu]
nouveau_bo.h revision 55fb74adc628b99424360b0123f47ea4484c56fd 
1#ifndef __NOUVEAU_BO_H__
2#define __NOUVEAU_BO_H__
3
4struct nouveau_channel;
5struct nouveau_fence;
6struct nouveau_vma;
7
8struct 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
41static inline struct nouveau_bo *
42nouveau_bo(struct ttm_buffer_object *bo)
43{
44	return container_of(bo, struct nouveau_bo, bo);
45}
46
47static inline int
48nouveau_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
66extern struct ttm_bo_driver nouveau_bo_driver;
67
68void nouveau_bo_move_init(struct nouveau_drm *);
69int  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 **);
72int  nouveau_bo_pin(struct nouveau_bo *, u32 flags);
73int  nouveau_bo_unpin(struct nouveau_bo *);
74int  nouveau_bo_map(struct nouveau_bo *);
75void nouveau_bo_unmap(struct nouveau_bo *);
76void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
77u16  nouveau_bo_rd16(struct nouveau_bo *, unsigned index);
78void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val);
79u32  nouveau_bo_rd32(struct nouveau_bo *, unsigned index);
80void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val);
81void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *);
82int  nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
83			 bool no_wait_gpu);
84
85struct nouveau_vma *
86nouveau_bo_vma_find(struct nouveau_bo *, struct nouveau_vm *);
87
88int  nouveau_bo_vma_add(struct nouveau_bo *, struct nouveau_vm *,
89			struct nouveau_vma *);
90void nouveau_bo_vma_del(struct nouveau_bo *, struct nouveau_vma *);
91
92/* TODO: submit equivalent to TTM generic API upstream? */
93static inline void __iomem *
94nvbo_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