1 /* SPDX-License-Identifier: MIT */
2 #ifndef __NOUVEAU_BO_H__
3 #define __NOUVEAU_BO_H__
4 #include <drm/drm_gem.h>
5 #include <drm/ttm/ttm_bo.h>
6 #include <drm/ttm/ttm_placement.h>
7
8 struct nouveau_channel;
9 struct nouveau_cli;
10 struct nouveau_drm;
11 struct nouveau_fence;
12
13 struct nouveau_bo {
14 struct ttm_buffer_object bo;
15 struct ttm_placement placement;
16 u32 valid_domains;
17 struct ttm_place placements[3];
18 bool force_coherent;
19 struct ttm_bo_kmap_obj kmap;
20 struct list_head head;
21 struct list_head io_reserve_lru;
22
23 /* protected by ttm_bo_reserve() */
24 struct drm_file *reserved_by;
25 struct list_head entry;
26 int pbbo_index;
27 bool validate_mapped;
28
29 /* Root GEM object we derive the dma_resv of in case this BO is not
30 * shared between VMs.
31 */
32 struct drm_gem_object *r_obj;
33 bool no_share;
34
35 /* GPU address space is independent of CPU word size */
36 uint64_t offset;
37
38 struct list_head vma_list;
39
40 unsigned contig:1;
41 unsigned page:5;
42 unsigned kind:8;
43 unsigned comp:3;
44 unsigned zeta:3;
45 unsigned mode;
46
47 struct nouveau_drm_tile *tile;
48 };
49
50 static inline struct nouveau_bo *
nouveau_bo(struct ttm_buffer_object * bo)51 nouveau_bo(struct ttm_buffer_object *bo)
52 {
53 return container_of(bo, struct nouveau_bo, bo);
54 }
55
56 static inline int
nouveau_bo_ref(struct nouveau_bo * ref,struct nouveau_bo ** pnvbo)57 nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
58 {
59 struct nouveau_bo *prev;
60
61 if (!pnvbo)
62 return -EINVAL;
63 prev = *pnvbo;
64
65 if (ref) {
66 ttm_bo_get(&ref->bo);
67 *pnvbo = nouveau_bo(&ref->bo);
68 } else {
69 *pnvbo = NULL;
70 }
71 if (prev)
72 ttm_bo_put(&prev->bo);
73
74 return 0;
75 }
76
77 extern struct ttm_device_funcs nouveau_bo_driver;
78
79 void nouveau_bo_move_init(struct nouveau_drm *);
80 struct nouveau_bo *nouveau_bo_alloc(struct nouveau_cli *, u64 *size, int *align,
81 u32 domain, u32 tile_mode, u32 tile_flags, bool internal);
82 int nouveau_bo_init(struct nouveau_bo *, u64 size, int align, u32 domain,
83 struct sg_table *sg, struct dma_resv *robj);
84 int nouveau_bo_new(struct nouveau_cli *, u64 size, int align, u32 domain,
85 u32 tile_mode, u32 tile_flags, struct sg_table *sg,
86 struct dma_resv *robj,
87 struct nouveau_bo **);
88 int nouveau_bo_pin_locked(struct nouveau_bo *nvbo, uint32_t domain, bool contig);
89 void nouveau_bo_unpin_locked(struct nouveau_bo *nvbo);
90 int nouveau_bo_pin(struct nouveau_bo *, u32 flags, bool contig);
91 int nouveau_bo_unpin(struct nouveau_bo *);
92 int nouveau_bo_map(struct nouveau_bo *);
93 void nouveau_bo_unmap(struct nouveau_bo *);
94 void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
95 void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val);
96 u32 nouveau_bo_rd32(struct nouveau_bo *, unsigned index);
97 void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val);
98 vm_fault_t nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo);
99 void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *, bool exclusive);
100 int nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
101 bool no_wait_gpu);
102 void nouveau_bo_sync_for_device(struct nouveau_bo *nvbo);
103 void nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo);
104 void nouveau_bo_add_io_reserve_lru(struct ttm_buffer_object *bo);
105 void nouveau_bo_del_io_reserve_lru(struct ttm_buffer_object *bo);
106
107 /* TODO: submit equivalent to TTM generic API upstream? */
108 static inline void __iomem *
nvbo_kmap_obj_iovirtual(struct nouveau_bo * nvbo)109 nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
110 {
111 bool is_iomem;
112 void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
113 &nvbo->kmap, &is_iomem);
114 WARN_ON_ONCE(ioptr && !is_iomem);
115 return ioptr;
116 }
117
118 static inline void
nouveau_bo_unmap_unpin_unref(struct nouveau_bo ** pnvbo)119 nouveau_bo_unmap_unpin_unref(struct nouveau_bo **pnvbo)
120 {
121 if (*pnvbo) {
122 nouveau_bo_unmap(*pnvbo);
123 nouveau_bo_unpin(*pnvbo);
124 nouveau_bo_ref(NULL, pnvbo);
125 }
126 }
127
128 static inline int
nouveau_bo_new_pin_map(struct nouveau_cli * cli,u64 size,int align,u32 domain,struct nouveau_bo ** pnvbo)129 nouveau_bo_new_pin_map(struct nouveau_cli *cli, u64 size, int align, u32 domain,
130 struct nouveau_bo **pnvbo)
131 {
132 int ret = nouveau_bo_new(cli, size, align, domain,
133 0, 0, NULL, NULL, pnvbo);
134 if (ret == 0) {
135 ret = nouveau_bo_pin(*pnvbo, domain, true);
136 if (ret == 0) {
137 ret = nouveau_bo_map(*pnvbo);
138 if (ret == 0)
139 return ret;
140 nouveau_bo_unpin(*pnvbo);
141 }
142 nouveau_bo_ref(NULL, pnvbo);
143 }
144 return ret;
145 }
146
147 int nv04_bo_move_init(struct nouveau_channel *, u32);
148 int nv04_bo_move_m2mf(struct nouveau_channel *, struct ttm_buffer_object *,
149 struct ttm_resource *, struct ttm_resource *);
150
151 int nv50_bo_move_init(struct nouveau_channel *, u32);
152 int nv50_bo_move_m2mf(struct nouveau_channel *, struct ttm_buffer_object *,
153 struct ttm_resource *, struct ttm_resource *);
154
155 int nv84_bo_move_exec(struct nouveau_channel *, struct ttm_buffer_object *,
156 struct ttm_resource *, struct ttm_resource *);
157
158 int nva3_bo_move_copy(struct nouveau_channel *, struct ttm_buffer_object *,
159 struct ttm_resource *, struct ttm_resource *);
160
161 int nvc0_bo_move_init(struct nouveau_channel *, u32);
162 int nvc0_bo_move_m2mf(struct nouveau_channel *, struct ttm_buffer_object *,
163 struct ttm_resource *, struct ttm_resource *);
164
165 int nvc0_bo_move_copy(struct nouveau_channel *, struct ttm_buffer_object *,
166 struct ttm_resource *, struct ttm_resource *);
167
168 int nve0_bo_move_init(struct nouveau_channel *, u32);
169 int nve0_bo_move_copy(struct nouveau_channel *, struct ttm_buffer_object *,
170 struct ttm_resource *, struct ttm_resource *);
171
172 #define NVBO_WR32_(b,o,dr,f) nouveau_bo_wr32((b), (o)/4 + (dr), (f))
173 #define NVBO_RD32_(b,o,dr) nouveau_bo_rd32((b), (o)/4 + (dr))
174 #define NVBO_RD32(A...) DRF_RD(NVBO_RD32_, ##A)
175 #define NVBO_RV32(A...) DRF_RV(NVBO_RD32_, ##A)
176 #define NVBO_TV32(A...) DRF_TV(NVBO_RD32_, ##A)
177 #define NVBO_TD32(A...) DRF_TD(NVBO_RD32_, ##A)
178 #define NVBO_WR32(A...) DRF_WR( NVBO_WR32_, ##A)
179 #define NVBO_WV32(A...) DRF_WV( NVBO_WR32_, ##A)
180 #define NVBO_WD32(A...) DRF_WD( NVBO_WR32_, ##A)
181 #define NVBO_MR32(A...) DRF_MR(NVBO_RD32_, NVBO_WR32_, u32, ##A)
182 #define NVBO_MV32(A...) DRF_MV(NVBO_RD32_, NVBO_WR32_, u32, ##A)
183 #define NVBO_MD32(A...) DRF_MD(NVBO_RD32_, NVBO_WR32_, u32, ##A)
184 #endif
185