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 unsigned page_shift; 29 30 struct nouveau_cli *cli; 31 32 u32 tile_mode; 33 u32 tile_flags; 34 struct nouveau_drm_tile *tile; 35 36 /* Only valid if allocated via nouveau_gem_new() and iff you hold a 37 * gem reference to it! For debugging, use gem.filp != NULL to test 38 * whether it is valid. */ 39 struct drm_gem_object gem; 40 41 /* protect by the ttm reservation lock */ 42 int pin_refcnt; 43 44 struct ttm_bo_kmap_obj dma_buf_vmap; 45 }; 46 47 static inline struct nouveau_bo * 48 nouveau_bo(struct ttm_buffer_object *bo) 49 { 50 return container_of(bo, struct nouveau_bo, bo); 51 } 52 53 static inline int 54 nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo) 55 { 56 struct nouveau_bo *prev; 57 58 if (!pnvbo) 59 return -EINVAL; 60 prev = *pnvbo; 61 62 *pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL; 63 if (prev) { 64 struct ttm_buffer_object *bo = &prev->bo; 65 66 ttm_bo_unref(&bo); 67 } 68 69 return 0; 70 } 71 72 extern struct ttm_bo_driver nouveau_bo_driver; 73 74 void nouveau_bo_move_init(struct nouveau_drm *); 75 int nouveau_bo_new(struct nouveau_cli *, u64 size, int align, u32 flags, 76 u32 tile_mode, u32 tile_flags, struct sg_table *sg, 77 struct reservation_object *robj, 78 struct nouveau_bo **); 79 int nouveau_bo_pin(struct nouveau_bo *, u32 flags, bool contig); 80 int nouveau_bo_unpin(struct nouveau_bo *); 81 int nouveau_bo_map(struct nouveau_bo *); 82 void nouveau_bo_unmap(struct nouveau_bo *); 83 void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy); 84 void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val); 85 u32 nouveau_bo_rd32(struct nouveau_bo *, unsigned index); 86 void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val); 87 void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *, bool exclusive); 88 int nouveau_bo_validate(struct nouveau_bo *, bool interruptible, 89 bool no_wait_gpu); 90 void nouveau_bo_sync_for_device(struct nouveau_bo *nvbo); 91 void nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo); 92 93 struct nvkm_vma * 94 nouveau_bo_vma_find(struct nouveau_bo *, struct nvkm_vm *); 95 96 int nouveau_bo_vma_add(struct nouveau_bo *, struct nvkm_vm *, 97 struct nvkm_vma *); 98 void nouveau_bo_vma_del(struct nouveau_bo *, struct nvkm_vma *); 99 100 /* TODO: submit equivalent to TTM generic API upstream? */ 101 static inline void __iomem * 102 nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo) 103 { 104 bool is_iomem; 105 void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual( 106 &nvbo->kmap, &is_iomem); 107 WARN_ON_ONCE(ioptr && !is_iomem); 108 return ioptr; 109 } 110 111 #endif 112