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ad76b3f7c7
We have the ability to move buffers around in the kernel if necessary, and should probably use it rather than failing if userspace passes us a non-contig buffer for a plane. The NOUVEAU_GEM_TILE_NONCONTIG flag from userspace will become a mere initial placement hint once all the relevant paths have been updated. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
110 lines
3.0 KiB
C
110 lines
3.0 KiB
C
#ifndef __NOUVEAU_BO_H__
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#define __NOUVEAU_BO_H__
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#include <drm/drm_gem.h>
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struct nouveau_channel;
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struct nouveau_fence;
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struct nouveau_vma;
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struct nouveau_bo {
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struct ttm_buffer_object bo;
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struct ttm_placement placement;
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u32 valid_domains;
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struct ttm_place placements[3];
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struct ttm_place busy_placements[3];
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bool force_coherent;
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struct ttm_bo_kmap_obj kmap;
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struct list_head head;
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/* protected by ttm_bo_reserve() */
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struct drm_file *reserved_by;
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struct list_head entry;
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int pbbo_index;
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bool validate_mapped;
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struct list_head vma_list;
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unsigned page_shift;
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u32 tile_mode;
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u32 tile_flags;
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struct nouveau_drm_tile *tile;
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/* Only valid if allocated via nouveau_gem_new() and iff you hold a
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* gem reference to it! For debugging, use gem.filp != NULL to test
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* whether it is valid. */
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struct drm_gem_object gem;
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/* protect by the ttm reservation lock */
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int pin_refcnt;
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struct ttm_bo_kmap_obj dma_buf_vmap;
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};
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static inline struct nouveau_bo *
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nouveau_bo(struct ttm_buffer_object *bo)
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{
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return container_of(bo, struct nouveau_bo, bo);
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}
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static inline int
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nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
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{
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struct nouveau_bo *prev;
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if (!pnvbo)
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return -EINVAL;
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prev = *pnvbo;
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*pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
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if (prev) {
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struct ttm_buffer_object *bo = &prev->bo;
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ttm_bo_unref(&bo);
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}
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return 0;
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}
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extern struct ttm_bo_driver nouveau_bo_driver;
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void nouveau_bo_move_init(struct nouveau_drm *);
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int nouveau_bo_new(struct drm_device *, int size, int align, u32 flags,
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u32 tile_mode, u32 tile_flags, struct sg_table *sg,
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struct reservation_object *robj,
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struct nouveau_bo **);
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int nouveau_bo_pin(struct nouveau_bo *, u32 flags, bool contig);
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int nouveau_bo_unpin(struct nouveau_bo *);
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int nouveau_bo_map(struct nouveau_bo *);
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void nouveau_bo_unmap(struct nouveau_bo *);
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void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
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u16 nouveau_bo_rd16(struct nouveau_bo *, unsigned index);
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void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val);
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u32 nouveau_bo_rd32(struct nouveau_bo *, unsigned index);
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void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val);
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void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *, bool exclusive);
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int nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
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bool no_wait_gpu);
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void nouveau_bo_sync_for_device(struct nouveau_bo *nvbo);
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void nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo);
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struct nouveau_vma *
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nouveau_bo_vma_find(struct nouveau_bo *, struct nouveau_vm *);
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int nouveau_bo_vma_add(struct nouveau_bo *, struct nouveau_vm *,
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struct nouveau_vma *);
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void nouveau_bo_vma_del(struct nouveau_bo *, struct nouveau_vma *);
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/* TODO: submit equivalent to TTM generic API upstream? */
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static inline void __iomem *
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nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
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{
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bool is_iomem;
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void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
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&nvbo->kmap, &is_iomem);
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WARN_ON_ONCE(ioptr && !is_iomem);
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return ioptr;
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}
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#endif
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