LXR linux/drivers/gpu/drm/nouveau/nouveau

   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        struct drm_gem_object *gem;
  31
  32        /* protect by the ttm reservation lock */
  33        int pin_refcnt;
  34
  35        struct ttm_bo_kmap_obj dma_buf_vmap;
  36};
  37
  38static inline struct nouveau_bo *
  39nouveau_bo(struct ttm_buffer_object *bo)
  40{
  41        return container_of(bo, struct nouveau_bo, bo);
  42}
  43
  44static inline int
  45nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
  46{
  47        struct nouveau_bo *prev;
  48
  49        if (!pnvbo)
  50                return -EINVAL;
  51        prev = *pnvbo;
  52
  53        *pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
  54        if (prev) {
  55                struct ttm_buffer_object *bo = &prev->bo;
  56
  57                ttm_bo_unref(&bo);
  58        }
  59
  60        return 0;
  61}
  62
  63extern struct ttm_bo_driver nouveau_bo_driver;
  64
  65void nouveau_bo_move_init(struct nouveau_drm *);
  66int  nouveau_bo_new(struct drm_device *, int size, int align, u32 flags,
  67                    u32 tile_mode, u32 tile_flags, struct sg_table *sg,
  68                    struct nouveau_bo **);
  69int  nouveau_bo_pin(struct nouveau_bo *, u32 flags);
  70int  nouveau_bo_unpin(struct nouveau_bo *);
  71int  nouveau_bo_map(struct nouveau_bo *);
  72void nouveau_bo_unmap(struct nouveau_bo *);
  73void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
  74u16  nouveau_bo_rd16(struct nouveau_bo *, unsigned index);
  75void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val);
  76u32  nouveau_bo_rd32(struct nouveau_bo *, unsigned index);
  77void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val);
  78void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *);
  79int  nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
  80                         bool no_wait_gpu);
  81
  82struct nouveau_vma *
  83nouveau_bo_vma_find(struct nouveau_bo *, struct nouveau_vm *);
  84
  85int  nouveau_bo_vma_add(struct nouveau_bo *, struct nouveau_vm *,
  86                        struct nouveau_vma *);
  87void nouveau_bo_vma_del(struct nouveau_bo *, struct nouveau_vma *);
  88
  89/* TODO: submit equivalent to TTM generic API upstream? */
  90static inline void __iomem *
  91nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
  92{
  93        bool is_iomem;
  94        void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
  95                                                &nvbo->kmap, &is_iomem);
  96        WARN_ON_ONCE(ioptr && !is_iomem);
  97        return ioptr;
  98}
  99
 100#endif
 101