drm/i915: cleanup map&fence in bind

Cleanup the map and fenceable setting during bind to make more sense,
and not check i915_is_ggtt() 2 unnecessary times

v2: Move the bools into the if block (Chris) - There are ways to tidy
this function (fence calculations for instance) even further, but they
are quite invasive, so I am punting on those unless specifically asked.

v3: Add newline between variable declaration and logic (Chris)

Recommended-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 910fbaf..6cb4467 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3119,7 +3119,6 @@ i915_gem_object_bind_to_vm(struct drm_i915_gem_object *obj,
        struct drm_device *dev = obj->base.dev;
        drm_i915_private_t *dev_priv = dev->dev_private;
        u32 size, fence_size, fence_alignment, unfenced_alignment;
-       bool mappable, fenceable;
        size_t gtt_max =
                map_and_fenceable ? dev_priv->gtt.mappable_end : vm->total;
        struct i915_vma *vma;
@@ -3203,18 +3202,18 @@ search_free:
        list_move_tail(&obj->global_list, &dev_priv->mm.bound_list);
        list_add_tail(&vma->mm_list, &vm->inactive_list);
 
-       fenceable =
-               i915_is_ggtt(vm) &&
-               i915_gem_obj_ggtt_size(obj) == fence_size &&
-               (i915_gem_obj_ggtt_offset(obj) & (fence_alignment - 1)) == 0;
+       if (i915_is_ggtt(vm)) {
+               bool mappable, fenceable;
 
-       mappable =
-               i915_is_ggtt(vm) &&
-               vma->node.start + obj->base.size <= dev_priv->gtt.mappable_end;
+               fenceable =
+                       i915_gem_obj_ggtt_size(obj) == fence_size &&
+                       (i915_gem_obj_ggtt_offset(obj) & (fence_alignment - 1)) == 0;
+
+               mappable =
+                       vma->node.start + obj->base.size <= dev_priv->gtt.mappable_end;
 
-       /* Map and fenceable only changes if the VM is the global GGTT */
-       if (i915_is_ggtt(vm))
                obj->map_and_fenceable = mappable && fenceable;
+       }
 
        WARN_ON(map_and_fenceable && !obj->map_and_fenceable);