diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 07b7a8a671d0b7aab98cd2d9e4722043ae4aa8f9..cc8c6960b689ddde3636d59375e3fe9d6c1d16bb 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -124,7 +124,7 @@ int i915_gem_object_unbind(struct drm_i915_gem_object *obj, LIST_HEAD(still_in_list); intel_wakeref_t wakeref; struct i915_vma *vma; - int ret = 0; + int ret; if (!atomic_read(&obj->bind_count)) return 0; @@ -137,6 +137,8 @@ int i915_gem_object_unbind(struct drm_i915_gem_object *obj, */ wakeref = intel_runtime_pm_get(rpm); +try_again: + ret = 0; spin_lock(&obj->vma.lock); while (!ret && (vma = list_first_entry_or_null(&obj->vma.list, struct i915_vma, @@ -154,6 +156,7 @@ int i915_gem_object_unbind(struct drm_i915_gem_object *obj, } else { if (i915_vma_is_closed(vma)) { spin_unlock(&obj->vma.lock); + i915_vma_parked(vm->gt); goto err_vm; } } @@ -175,6 +178,11 @@ int i915_gem_object_unbind(struct drm_i915_gem_object *obj, list_splice(&still_in_list, &obj->vma.list); spin_unlock(&obj->vma.lock); + if (ret == -EAGAIN && flags & I915_GEM_OBJECT_UNBIND_ACTIVE) { + rcu_barrier(); /* flush the i915_vm_release() */ + goto try_again; + } + intel_runtime_pm_put(rpm, wakeref); return ret;