[PATCH 07/38] drm/i915: Split insertion/binding of an object into the VM

[Chris Wilson <chris@chris-wilson.co.uk>]

Split the insertion into the address space's range manager and binding
of that object into the GTT to simplify the code flow when pinning a
VMA.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem.c | 33 +++++++++++++++------------------
 1 file changed, 15 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0f0101300b2b..cd54c290680d 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2675,12 +2675,12 @@ static bool i915_gem_valid_gtt_space(struct i915_vma *vma,
  * there.
  */
 static struct i915_vma *
-i915_gem_object_bind_to_vm(struct drm_i915_gem_object *obj,
-			   struct i915_address_space *vm,
-			   const struct i915_ggtt_view *ggtt_view,
-			   uint64_t size,
-			   unsigned alignment,
-			   uint64_t flags)
+i915_gem_object_insert_into_vm(struct drm_i915_gem_object *obj,
+			       struct i915_address_space *vm,
+			       const struct i915_ggtt_view *ggtt_view,
+			       uint64_t size,
+			       unsigned alignment,
+			       uint64_t flags)
 {
 	struct drm_device *dev = obj->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
@@ -2809,11 +2809,6 @@ search_free:
 		goto err_remove_node;
 	}
 
-	trace_i915_vma_bind(vma, flags);
-	ret = i915_vma_bind(vma, obj->cache_level, flags);
-	if (ret)
-		goto err_remove_node;
-
 	list_move_tail(&obj->global_list, &dev_priv->mm.bound_list);
 	list_move_tail(&vma->vm_link, &vm->inactive_list);
 	obj->bind_count++;
@@ -3484,24 +3479,26 @@ i915_gem_object_do_pin(struct drm_i915_gem_object *obj,
 		}
 	}
 
-	bound = vma ? vma->bound : 0;
 	if (vma == NULL || !drm_mm_node_allocated(&vma->node)) {
-		vma = i915_gem_object_bind_to_vm(obj, vm, ggtt_view,
-						 size, alignment, flags);
+		vma = i915_gem_object_insert_into_vm(obj, vm, ggtt_view,
+						     size, alignment, flags);
 		if (IS_ERR(vma))
 			return PTR_ERR(vma);
-	} else {
-		ret = i915_vma_bind(vma, obj->cache_level, flags);
-		if (ret)
-			return ret;
 	}
 
+	bound = vma->bound;
+	ret = i915_vma_bind(vma, obj->cache_level, flags);
+	if (ret)
+		return ret;
+
 	if (ggtt_view && ggtt_view->type == I915_GGTT_VIEW_NORMAL &&
 	    (bound ^ vma->bound) & GLOBAL_BIND) {
 		__i915_vma_set_map_and_fenceable(vma);
 		WARN_ON(flags & PIN_MAPPABLE && !obj->map_and_fenceable);
 	}
 
+	GEM_BUG_ON(i915_vma_misplaced(vma, size, alignment, flags));
+
 	vma->pin_count++;
 	return 0;
 }
-- 
2.8.1

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