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}

int

i915_gem_evict_for_vma(struct i915_vma *target)

{

	struct drm_mm_node *node, *next;

	list_for_each_entry_safe(node, next,

			&target->vm->mm.head_node.node_list,

			node_list) {

		struct i915_vma *vma;

		int ret;

		if (node->start + node->size <= target->node.start)

			continue;

		if (node->start >= target->node.start + target->node.size)

			break;

		vma = container_of(node, typeof(*vma), node);

		if (vma->pin_count) {

			if (!vma->exec_entry || (vma->pin_count > 1))

				/* Object is pinned for some other use */

				return -EBUSY;

			/* We need to evict a buffer in the same batch */

			if (vma->exec_entry->flags & EXEC_OBJECT_PINNED)

				/* Overlapping fixed objects in the same batch */

				return -EINVAL;

			return -ENOSPC;

		}

		ret = i915_vma_unbind(vma);

		if (ret)

			return ret;

	}

	return 0;