diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_shrinker.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_shrinker.c | 27 |
1 files changed, 7 insertions, 20 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c index b5c87d89777b..575a6b735f39 100644 --- a/drivers/gpu/drm/i915/i915_gem_shrinker.c +++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c @@ -71,25 +71,6 @@ static void shrinker_unlock(struct drm_i915_private *dev_priv, bool unlock) mutex_unlock(&dev_priv->drm.struct_mutex); } -static bool any_vma_pinned(struct drm_i915_gem_object *obj) -{ - struct i915_vma *vma; - - list_for_each_entry(vma, &obj->vma_list, obj_link) { - /* Only GGTT vma may be permanently pinned, and are always - * at the start of the list. We can stop hunting as soon - * as we see a ppGTT vma. - */ - if (!i915_vma_is_ggtt(vma)) - break; - - if (i915_vma_is_pinned(vma)) - return true; - } - - return false; -} - static bool swap_available(void) { return get_nr_swap_pages() > 0; @@ -115,7 +96,13 @@ static bool can_release_pages(struct drm_i915_gem_object *obj) if (atomic_read(&obj->mm.pages_pin_count) > obj->bind_count) return false; - if (any_vma_pinned(obj)) + /* If any vma are "permanently" pinned, it will prevent us from + * reclaiming the obj->mm.pages. We only allow scanout objects to claim + * a permanent pin, along with a few others like the context objects. + * To simplify the scan, and to avoid walking the list of vma under the + * object, we just check the count of its permanently pinned. + */ + if (obj->pin_global) return false; /* We can only return physical pages to the system if we can either |