1 /* SPDX-License-Identifier: GPL-2.0 */ 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 /* Only valid if allocated via nouveau_gem_new() and iff you hold a 39 * gem reference to it! For debugging, use gem.filp != NULL to test 40 * whether it is valid. */ 41 struct drm_gem_object gem; 42 43 /* protect by the ttm reservation lock */ 44 int pin_refcnt; 45 46 struct ttm_bo_kmap_obj dma_buf_vmap; 47 }; 48 49 static inline struct nouveau_bo * 50 nouveau_bo(struct ttm_buffer_object *bo) 51 { 52 return container_of(bo, struct nouveau_bo, bo); 53 } 54 55 static inline int 56 nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo) 57 { 58 struct nouveau_bo *prev; 59 60 if (!pnvbo) 61 return -EINVAL; 62 prev = *pnvbo; 63 64 if (ref) { 65 ttm_bo_get(&ref->bo); 66 *pnvbo = nouveau_bo(&ref->bo); 67 } else { 68 *pnvbo = NULL; 69 } 70 if (prev) 71 ttm_bo_put(&prev->bo); 72 73 return 0; 74 } 75 76 extern struct ttm_bo_driver nouveau_bo_driver; 77 78 void nouveau_bo_move_init(struct nouveau_drm *); 79 int nouveau_bo_new(struct nouveau_cli *, u64 size, int align, u32 flags, 80 u32 tile_mode, u32 tile_flags, struct sg_table *sg, 81 struct reservation_object *robj, 82 struct nouveau_bo **); 83 int nouveau_bo_pin(struct nouveau_bo *, u32 flags, bool contig); 84 int nouveau_bo_unpin(struct nouveau_bo *); 85 int nouveau_bo_map(struct nouveau_bo *); 86 void nouveau_bo_unmap(struct nouveau_bo *); 87 void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy); 88 void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val); 89 u32 nouveau_bo_rd32(struct nouveau_bo *, unsigned index); 90 void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val); 91 void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *, bool exclusive); 92 int nouveau_bo_validate(struct nouveau_bo *, bool interruptible, 93 bool no_wait_gpu); 94 void nouveau_bo_sync_for_device(struct nouveau_bo *nvbo); 95 void nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo); 96 97 /* TODO: submit equivalent to TTM generic API upstream? */ 98 static inline void __iomem * 99 nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo) 100 { 101 bool is_iomem; 102 void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual( 103 &nvbo->kmap, &is_iomem); 104 WARN_ON_ONCE(ioptr && !is_iomem); 105 return ioptr; 106 } 107 108 static inline void 109 nouveau_bo_unmap_unpin_unref(struct nouveau_bo **pnvbo) 110 { 111 if (*pnvbo) { 112 nouveau_bo_unmap(*pnvbo); 113 nouveau_bo_unpin(*pnvbo); 114 nouveau_bo_ref(NULL, pnvbo); 115 } 116 } 117 118 static inline int 119 nouveau_bo_new_pin_map(struct nouveau_cli *cli, u64 size, int align, u32 flags, 120 struct nouveau_bo **pnvbo) 121 { 122 int ret = nouveau_bo_new(cli, size, align, flags, 123 0, 0, NULL, NULL, pnvbo); 124 if (ret == 0) { 125 ret = nouveau_bo_pin(*pnvbo, flags, true); 126 if (ret == 0) { 127 ret = nouveau_bo_map(*pnvbo); 128 if (ret == 0) 129 return ret; 130 nouveau_bo_unpin(*pnvbo); 131 } 132 nouveau_bo_ref(NULL, pnvbo); 133 } 134 return ret; 135 } 136 #endif 137