drm/i915: Only mark as map-and-fenceable when bound into the GGTT

We use the obj->map_and_fenceable hint for when we already have a
valid mapping of this object in the aperture. This hint can only apply
to the GGTT and not to the aliasing-ppGTT. One user of the hint is
execbuffer relocation, which began to fail when it tried to follow the
hint and perform the relocate through the non-existent GGTT mapping.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=85671
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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 c2456c2..0c6ef66 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3476,20 +3476,6 @@ search_free:
        list_move_tail(&obj->global_list, &dev_priv->mm.bound_list);
        list_add_tail(&vma->mm_list, &vm->inactive_list);
 
-       if (i915_is_ggtt(vm)) {
-               bool mappable, fenceable;
-
-               fenceable = (vma->node.size == fence_size &&
-                            (vma->node.start & (fence_alignment - 1)) == 0);
-
-               mappable = (vma->node.start + obj->base.size <=
-                           dev_priv->gtt.mappable_end);
-
-               obj->map_and_fenceable = mappable && fenceable;
-       }
-
-       WARN_ON(flags & PIN_MAPPABLE && !obj->map_and_fenceable);
-
        trace_i915_vma_bind(vma, flags);
        vma->bind_vma(vma, obj->cache_level,
                      flags & (PIN_MAPPABLE | PIN_GLOBAL) ? GLOBAL_BIND : 0);
@@ -4061,6 +4047,7 @@ i915_gem_object_pin(struct drm_i915_gem_object *obj,
 {
        struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
        struct i915_vma *vma;
+       unsigned bound;
        int ret;
 
        if (WARN_ON(vm == &dev_priv->mm.aliasing_ppgtt->base))
@@ -4090,6 +4077,7 @@ i915_gem_object_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, alignment, flags);
                if (IS_ERR(vma))
@@ -4099,6 +4087,29 @@ i915_gem_object_pin(struct drm_i915_gem_object *obj,
        if (flags & PIN_GLOBAL && !(vma->bound & GLOBAL_BIND))
                vma->bind_vma(vma, obj->cache_level, GLOBAL_BIND);
 
+       if ((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 + obj->base.size <=
+                           dev_priv->gtt.mappable_end);
+
+               obj->map_and_fenceable = mappable && fenceable;
+       }
+
+       WARN_ON(flags & PIN_MAPPABLE && !obj->map_and_fenceable);
+
        vma->pin_count++;
        if (flags & PIN_MAPPABLE)
                obj->pin_mappable |= true;