1#ifndef __NOUVEAU_BO_H__ 2#define __NOUVEAU_BO_H__ 3 4#include <drm/drm_gem.h> 5 6struct nouveau_channel; 7struct nouveau_fence; 8struct nouveau_vma; 9 10struct nouveau_bo { 11 struct ttm_buffer_object bo; 12 struct ttm_placement placement; 13 u32 valid_domains; 14 struct ttm_place placements[3]; 15 struct ttm_place busy_placements[3]; 16 struct ttm_bo_kmap_obj kmap; 17 struct list_head head; 18 19 /* protected by ttm_bo_reserve() */ 20 struct drm_file *reserved_by; 21 struct list_head entry; 22 int pbbo_index; 23 bool validate_mapped; 24 25 struct list_head vma_list; 26 unsigned page_shift; 27 28 u32 tile_mode; 29 u32 tile_flags; 30 struct nouveau_drm_tile *tile; 31 32 /* Only valid if allocated via nouveau_gem_new() and iff you hold a 33 * gem reference to it! For debugging, use gem.filp != NULL to test 34 * whether it is valid. */ 35 struct drm_gem_object gem; 36 37 /* protect by the ttm reservation lock */ 38 int pin_refcnt; 39 40 struct ttm_bo_kmap_obj dma_buf_vmap; 41}; 42 43static inline struct nouveau_bo * 44nouveau_bo(struct ttm_buffer_object *bo) 45{ 46 return container_of(bo, struct nouveau_bo, bo); 47} 48 49static inline int 50nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo) 51{ 52 struct nouveau_bo *prev; 53 54 if (!pnvbo) 55 return -EINVAL; 56 prev = *pnvbo; 57 58 *pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL; 59 if (prev) { 60 struct ttm_buffer_object *bo = &prev->bo; 61 62 ttm_bo_unref(&bo); 63 } 64 65 return 0; 66} 67 68extern struct ttm_bo_driver nouveau_bo_driver; 69 70void nouveau_bo_move_init(struct nouveau_drm *); 71int nouveau_bo_new(struct drm_device *, int size, int align, u32 flags, 72 u32 tile_mode, u32 tile_flags, struct sg_table *sg, 73 struct reservation_object *robj, 74 struct nouveau_bo **); 75int nouveau_bo_pin(struct nouveau_bo *, u32 flags); 76int nouveau_bo_unpin(struct nouveau_bo *); 77int nouveau_bo_map(struct nouveau_bo *); 78void nouveau_bo_unmap(struct nouveau_bo *); 79void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy); 80u16 nouveau_bo_rd16(struct nouveau_bo *, unsigned index); 81void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val); 82u32 nouveau_bo_rd32(struct nouveau_bo *, unsigned index); 83void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val); 84void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *, bool exclusive); 85int nouveau_bo_validate(struct nouveau_bo *, bool interruptible, 86 bool no_wait_gpu); 87 88struct nouveau_vma * 89nouveau_bo_vma_find(struct nouveau_bo *, struct nouveau_vm *); 90 91int nouveau_bo_vma_add(struct nouveau_bo *, struct nouveau_vm *, 92 struct nouveau_vma *); 93void nouveau_bo_vma_del(struct nouveau_bo *, struct nouveau_vma *); 94 95/* TODO: submit equivalent to TTM generic API upstream? */ 96static inline void __iomem * 97nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo) 98{ 99 bool is_iomem; 100 void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual( 101 &nvbo->kmap, &is_iomem); 102 WARN_ON_ONCE(ioptr && !is_iomem); 103 return ioptr; 104} 105 106#endif 107