1#ifndef __NOUVEAU_BO_H__
2#define __NOUVEAU_BO_H__
3
4#include <ttm/ttm_bo_api.h>
5
6struct nouveau_channel;
7struct nouveau_drm;
8struct nouveau_fence;
9struct nouveau_vm;
10struct nouveau_vma;
11
12struct nouveau_bo {
13 struct ttm_buffer_object bo;
14 struct ttm_placement placement;
15 u32 valid_domains;
16 u32 placements[3];
17 u32 busy_placements[3];
18 struct ttm_bo_kmap_obj kmap;
19 struct list_head head;
20
21 /* protected by ttm_bo_reserve() */
22 struct drm_file *reserved_by;
23 struct list_head entry;
24 int pbbo_index;
25 bool validate_mapped;
26
27 struct list_head vma_list;
28 unsigned page_shift;
29
30 u32 tile_mode;
31 u32 tile_flags;
32 struct nouveau_drm_tile *tile;
33
34 /* Only valid if allocated via nouveau_gem_new() and iff you hold a
35 * gem reference to it! For debugging, use gem.filp != NULL to test
36 * whether it is valid. */
37 struct drm_gem_object gem;
38
39 /* protect by the ttm reservation lock */
40 int pin_refcnt;
41
42 struct ttm_bo_kmap_obj dma_buf_vmap;
43};
44
45static inline struct nouveau_bo *
46nouveau_bo(struct ttm_buffer_object *bo)
47{
48 return container_of(bo, struct nouveau_bo, bo);
49}
50
51static inline int
52nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
53{
54 struct nouveau_bo *prev;
55
56 if (!pnvbo)
57 return -EINVAL;
58 prev = *pnvbo;
59
60 *pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
61 if (prev) {
62 struct ttm_buffer_object *bo = &prev->bo;
63
64 ttm_bo_unref(&bo);
65 }
66
67 return 0;
68}
69
70extern struct ttm_bo_driver nouveau_bo_driver;
71
72void nouveau_bo_move_init(struct nouveau_drm *);
73int nouveau_bo_new(struct drm_device *, int size, int align, u32 flags,
74 u32 tile_mode, u32 tile_flags, struct sg_table *sg,
75 struct nouveau_bo **);
76int nouveau_bo_pin(struct nouveau_bo *, u32 flags);
77int nouveau_bo_unpin(struct nouveau_bo *);
78int nouveau_bo_map(struct nouveau_bo *);
79void nouveau_bo_unmap(struct nouveau_bo *);
80void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
81u16 nouveau_bo_rd16(struct nouveau_bo *, unsigned index);
82void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val);
83u32 nouveau_bo_rd32(struct nouveau_bo *, unsigned index);
84void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val);
85void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *);
86int nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
87 bool no_wait_gpu);
88
89struct nouveau_vma *
90nouveau_bo_vma_find(struct nouveau_bo *, struct nouveau_vm *);
91
92int nouveau_bo_vma_add(struct nouveau_bo *, struct nouveau_vm *,
93 struct nouveau_vma *);
94void nouveau_bo_vma_del(struct nouveau_bo *, struct nouveau_vma *);
95
96#ifdef __NetBSD__
97# define __iomem volatile
98# define __force
99#endif
100
101/* TODO: submit equivalent to TTM generic API upstream? */
102static inline void __iomem *
103nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
104{
105 bool is_iomem;
106 void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
107 &nvbo->kmap, &is_iomem);
108 WARN_ON_ONCE(ioptr && !is_iomem);
109 return ioptr;
110}
111
112#ifdef __NetBSD__
113# undef __iomem
114# undef __force
115#endif
116
117#endif
118