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