1 /* SPDX-License-Identifier: MIT */
2 #ifndef __NOUVEAU_BO_H__
3 #define __NOUVEAU_BO_H__
4
5 #include <drm/drm_gem.h>
6
7 struct nouveau_channel;
8 struct nouveau_fence;
9 struct nvkm_vma;
10
11 struct nouveau_bo {
12 struct ttm_buffer_object bo;
13 struct ttm_placement placement;
14 u32 valid_domains;
15 struct ttm_place placements[3];
16 struct ttm_place busy_placements[3];
17 bool force_coherent;
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
29 unsigned contig:1;
30 unsigned page:5;
31 unsigned kind:8;
32 unsigned comp:3;
33 unsigned zeta:3;
34 unsigned mode;
35
36 struct nouveau_drm_tile *tile;
37
38 /* protect by the ttm reservation lock */
39 int pin_refcnt;
40
41 struct ttm_bo_kmap_obj dma_buf_vmap;
42 };
43
44 static inline struct nouveau_bo *
nouveau_bo(struct ttm_buffer_object * bo)45 nouveau_bo(struct ttm_buffer_object *bo)
46 {
47 return container_of(bo, struct nouveau_bo, bo);
48 }
49
50 static inline int
nouveau_bo_ref(struct nouveau_bo * ref,struct nouveau_bo ** pnvbo)51 nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
52 {
53 struct nouveau_bo *prev;
54
55 if (!pnvbo)
56 return -EINVAL;
57 prev = *pnvbo;
58
59 if (ref) {
60 ttm_bo_get(&ref->bo);
61 *pnvbo = nouveau_bo(&ref->bo);
62 } else {
63 *pnvbo = NULL;
64 }
65 if (prev)
66 ttm_bo_put(&prev->bo);
67
68 return 0;
69 }
70
71 extern struct ttm_bo_driver nouveau_bo_driver;
72
73 void nouveau_bo_move_init(struct nouveau_drm *);
74 struct nouveau_bo *nouveau_bo_alloc(struct nouveau_cli *, u64 *size, int *align,
75 u32 flags, u32 tile_mode, u32 tile_flags);
76 int nouveau_bo_init(struct nouveau_bo *, u64 size, int align, u32 flags,
77 struct sg_table *sg, struct dma_resv *robj);
78 int nouveau_bo_new(struct nouveau_cli *, u64 size, int align, u32 flags,
79 u32 tile_mode, u32 tile_flags, struct sg_table *sg,
80 struct dma_resv *robj,
81 struct nouveau_bo **);
82 int nouveau_bo_pin(struct nouveau_bo *, u32 flags, bool contig);
83 int nouveau_bo_unpin(struct nouveau_bo *);
84 int nouveau_bo_map(struct nouveau_bo *);
85 void nouveau_bo_unmap(struct nouveau_bo *);
86 void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
87 void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val);
88 u32 nouveau_bo_rd32(struct nouveau_bo *, unsigned index);
89 void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val);
90 void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *, bool exclusive);
91 int nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
92 bool no_wait_gpu);
93 void nouveau_bo_sync_for_device(struct nouveau_bo *nvbo);
94 void nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo);
95
96 /* TODO: submit equivalent to TTM generic API upstream? */
97 static inline void __iomem *
nvbo_kmap_obj_iovirtual(struct nouveau_bo * nvbo)98 nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
99 {
100 bool is_iomem;
101 void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
102 &nvbo->kmap, &is_iomem);
103 WARN_ON_ONCE(ioptr && !is_iomem);
104 return ioptr;
105 }
106
107 static inline void
nouveau_bo_unmap_unpin_unref(struct nouveau_bo ** pnvbo)108 nouveau_bo_unmap_unpin_unref(struct nouveau_bo **pnvbo)
109 {
110 if (*pnvbo) {
111 nouveau_bo_unmap(*pnvbo);
112 nouveau_bo_unpin(*pnvbo);
113 nouveau_bo_ref(NULL, pnvbo);
114 }
115 }
116
117 static inline int
nouveau_bo_new_pin_map(struct nouveau_cli * cli,u64 size,int align,u32 flags,struct nouveau_bo ** pnvbo)118 nouveau_bo_new_pin_map(struct nouveau_cli *cli, u64 size, int align, u32 flags,
119 struct nouveau_bo **pnvbo)
120 {
121 int ret = nouveau_bo_new(cli, size, align, flags,
122 0, 0, NULL, NULL, pnvbo);
123 if (ret == 0) {
124 ret = nouveau_bo_pin(*pnvbo, flags, true);
125 if (ret == 0) {
126 ret = nouveau_bo_map(*pnvbo);
127 if (ret == 0)
128 return ret;
129 nouveau_bo_unpin(*pnvbo);
130 }
131 nouveau_bo_ref(NULL, pnvbo);
132 }
133 return ret;
134 }
135 #endif
136