nouveau_bo.h revision 55fb74adc628b99424360b0123f47ea4484c56fd
1#ifndef __NOUVEAU_BO_H__ 2#define __NOUVEAU_BO_H__ 3 4struct nouveau_channel; 5struct nouveau_fence; 6struct nouveau_vma; 7 8struct nouveau_bo { 9 struct ttm_buffer_object bo; 10 struct ttm_placement placement; 11 u32 valid_domains; 12 u32 placements[3]; 13 u32 busy_placements[3]; 14 struct ttm_bo_kmap_obj kmap; 15 struct list_head head; 16 17 /* protected by ttm_bo_reserve() */ 18 struct drm_file *reserved_by; 19 struct list_head entry; 20 int pbbo_index; 21 bool validate_mapped; 22 23 struct list_head vma_list; 24 unsigned page_shift; 25 26 u32 tile_mode; 27 u32 tile_flags; 28 struct nouveau_drm_tile *tile; 29 30 /* Only valid if allocated via nouveau_gem_new() and iff you hold a 31 * gem reference to it! For debugging, use gem.filp != NULL to test 32 * whether it is valid. */ 33 struct drm_gem_object gem; 34 35 /* protect by the ttm reservation lock */ 36 int pin_refcnt; 37 38 struct ttm_bo_kmap_obj dma_buf_vmap; 39}; 40 41static inline struct nouveau_bo * 42nouveau_bo(struct ttm_buffer_object *bo) 43{ 44 return container_of(bo, struct nouveau_bo, bo); 45} 46 47static inline int 48nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo) 49{ 50 struct nouveau_bo *prev; 51 52 if (!pnvbo) 53 return -EINVAL; 54 prev = *pnvbo; 55 56 *pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL; 57 if (prev) { 58 struct ttm_buffer_object *bo = &prev->bo; 59 60 ttm_bo_unref(&bo); 61 } 62 63 return 0; 64} 65 66extern struct ttm_bo_driver nouveau_bo_driver; 67 68void nouveau_bo_move_init(struct nouveau_drm *); 69int nouveau_bo_new(struct drm_device *, int size, int align, u32 flags, 70 u32 tile_mode, u32 tile_flags, struct sg_table *sg, 71 struct nouveau_bo **); 72int nouveau_bo_pin(struct nouveau_bo *, u32 flags); 73int nouveau_bo_unpin(struct nouveau_bo *); 74int nouveau_bo_map(struct nouveau_bo *); 75void nouveau_bo_unmap(struct nouveau_bo *); 76void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy); 77u16 nouveau_bo_rd16(struct nouveau_bo *, unsigned index); 78void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val); 79u32 nouveau_bo_rd32(struct nouveau_bo *, unsigned index); 80void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val); 81void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *); 82int nouveau_bo_validate(struct nouveau_bo *, bool interruptible, 83 bool no_wait_gpu); 84 85struct nouveau_vma * 86nouveau_bo_vma_find(struct nouveau_bo *, struct nouveau_vm *); 87 88int nouveau_bo_vma_add(struct nouveau_bo *, struct nouveau_vm *, 89 struct nouveau_vma *); 90void nouveau_bo_vma_del(struct nouveau_bo *, struct nouveau_vma *); 91 92/* TODO: submit equivalent to TTM generic API upstream? */ 93static inline void __iomem * 94nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo) 95{ 96 bool is_iomem; 97 void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual( 98 &nvbo->kmap, &is_iomem); 99 WARN_ON_ONCE(ioptr && !is_iomem); 100 return ioptr; 101} 102 103#endif 104