drm/ttm: factor out ttm_bo_mmap_vma_setup

	return bo;

}

static void ttm_bo_mmap_vma_setup(struct ttm_buffer_object *bo, struct vm_area_struct *vma)

{

	vma->vm_ops = &ttm_bo_vm_ops;

	/*

	 * Note: We're transferring the bo reference to

	 * vma->vm_private_data here.

	 */

	vma->vm_private_data = bo;

	/*

	 * We'd like to use VM_PFNMAP on shared mappings, where

	 * (vma->vm_flags & VM_SHARED) != 0, for performance reasons,

	 * but for some reason VM_PFNMAP + x86 PAT + write-combine is very

	 * bad for performance. Until that has been sorted out, use

	 * VM_MIXEDMAP on all mappings. See freedesktop.org bug #75719

	 */

	vma->vm_flags |= VM_MIXEDMAP;

	vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;

}

int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma,

		struct ttm_bo_device *bdev)

{

	if (unlikely(ret != 0))

		goto out_unref;

	vma->vm_ops = &ttm_bo_vm_ops;

	/*

	 * Note: We're transferring the bo reference to

	 * vma->vm_private_data here.

	 */

	vma->vm_private_data = bo;

	/*

	 * We'd like to use VM_PFNMAP on shared mappings, where

	 * (vma->vm_flags & VM_SHARED) != 0, for performance reasons,

	 * but for some reason VM_PFNMAP + x86 PAT + write-combine is very

	 * bad for performance. Until that has been sorted out, use

	 * VM_MIXEDMAP on all mappings. See freedesktop.org bug #75719

	 */

	vma->vm_flags |= VM_MIXEDMAP;

	vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;

	ttm_bo_mmap_vma_setup(bo, vma);

	return 0;

out_unref:

	ttm_bo_put(bo);

	ttm_bo_get(bo);

	vma->vm_ops = &ttm_bo_vm_ops;

	vma->vm_private_data = bo;

	vma->vm_flags |= VM_MIXEDMAP;

	vma->vm_flags |= VM_IO | VM_DONTEXPAND;

	ttm_bo_mmap_vma_setup(bo, vma);

	return 0;

}

EXPORT_SYMBOL(ttm_fbdev_mmap);