drm/i915: Set the map-and-fenceable flag for preallocated objects

As we mark the preallocated objects as bound, we should also flag them
correctly as being map-and-fenceable (if appropriate!) so that later
users do not get confused and try and rebind the pinned vma in order to
get a map-and-fenceable binding.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: "Goel, Akash" <akash.goel@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: drm-intel-fixes@lists.freedesktop.org
Link: http://patchwork.freedesktop.org/patch/msgid/1448029000-10616-1-git-send-email-chris@chris-wilson.co.uk
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit d0710abbcd88b1ff17760e97d74a673e67b49ea1)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

4 files changed, 27 insertions, 19 deletions

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index a01e51581c4c..037a650d6565 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2839,6 +2839,7 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
 
 int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
                   u32 flags);
+void __i915_vma_set_map_and_fenceable(struct i915_vma *vma);
 int __must_check i915_vma_unbind(struct i915_vma *vma);
 /*
  * BEWARE: Do not use the function below unless you can _absolutely_
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 32e6aade6223..3163518ba19a 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4080,6 +4080,29 @@ i915_vma_misplaced(struct i915_vma *vma, uint32_t alignment, uint64_t flags)
         return false;
 }
 
+void __i915_vma_set_map_and_fenceable(struct i915_vma *vma)
+{
+        struct drm_i915_gem_object *obj = vma->obj;
+        bool mappable, fenceable;
+        u32 fence_size, fence_alignment;
+
+        fence_size = i915_gem_get_gtt_size(obj->base.dev,
+                                           obj->base.size,
+                                           obj->tiling_mode);
+        fence_alignment = i915_gem_get_gtt_alignment(obj->base.dev,
+                                                     obj->base.size,
+                                                     obj->tiling_mode,
+                                                     true);
+
+        fenceable = (vma->node.size == fence_size &&
+                     (vma->node.start & (fence_alignment - 1)) == 0);
+
+        mappable = (vma->node.start + fence_size <=
+                    to_i915(obj->base.dev)->gtt.mappable_end);
+
+        obj->map_and_fenceable = mappable && fenceable;
+}
+
 static int
 i915_gem_object_do_pin(struct drm_i915_gem_object *obj,
                        struct i915_address_space *vm,
@@ -4147,25 +4170,7 @@ i915_gem_object_do_pin(struct drm_i915_gem_object *obj,
 
         if (ggtt_view && ggtt_view->type == I915_GGTT_VIEW_NORMAL &&
             (bound ^ vma->bound) & GLOBAL_BIND) {
-                bool mappable, fenceable;
-                u32 fence_size, fence_alignment;
-
-                fence_size = i915_gem_get_gtt_size(obj->base.dev,
-                                                   obj->base.size,
-                                                   obj->tiling_mode);
-                fence_alignment = i915_gem_get_gtt_alignment(obj->base.dev,
-                                                             obj->base.size,
-                                                             obj->tiling_mode,
-                                                             true);
-
-                fenceable = (vma->node.size == fence_size &&
-                             (vma->node.start & (fence_alignment - 1)) == 0);
-
-                mappable = (vma->node.start + fence_size <=
-                            dev_priv->gtt.mappable_end);
-
-                obj->map_and_fenceable = mappable && fenceable;
-
+                __i915_vma_set_map_and_fenceable(vma);
                 WARN_ON(flags & PIN_MAPPABLE && !obj->map_and_fenceable);
         }
 
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 43f35d12b677..86c7500454b4 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2676,6 +2676,7 @@ static int i915_gem_setup_global_gtt(struct drm_device *dev,
                         return ret;
                 }
                 vma->bound |= GLOBAL_BIND;
+                __i915_vma_set_map_and_fenceable(vma);
                 list_add_tail(&vma->mm_list, &ggtt_vm->inactive_list);
         }
 
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index cdacf3f5b77a..87e919a06b27 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -687,6 +687,7 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
                 }
 
                 vma->bound |= GLOBAL_BIND;
+                __i915_vma_set_map_and_fenceable(vma);
                 list_add_tail(&vma->mm_list, &ggtt->inactive_list);
         }