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