| /* |
| * Copyright © 2008 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| * |
| * Authors: |
| * Keith Packard <keithp@keithp.com> |
| * |
| */ |
| |
| #include <drm/drmP.h> |
| #include <drm/i915_drm.h> |
| #include "i915_drv.h" |
| |
| #if WATCH_LISTS |
| int |
| i915_verify_lists(struct drm_device *dev) |
| { |
| static int warned; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| struct drm_i915_gem_object *obj; |
| struct intel_engine_cs *ring; |
| int err = 0; |
| int i; |
| |
| if (warned) |
| return 0; |
| |
| for_each_ring(ring, dev_priv, i) { |
| list_for_each_entry(obj, &ring->active_list, ring_list[ring->id]) { |
| if (obj->base.dev != dev || |
| !atomic_read(&obj->base.refcount.refcount)) { |
| DRM_ERROR("%s: freed active obj %p\n", |
| ring->name, obj); |
| err++; |
| break; |
| } else if (!obj->active || |
| obj->last_read_req[ring->id] == NULL) { |
| DRM_ERROR("%s: invalid active obj %p\n", |
| ring->name, obj); |
| err++; |
| } else if (obj->base.write_domain) { |
| DRM_ERROR("%s: invalid write obj %p (w %x)\n", |
| ring->name, |
| obj, obj->base.write_domain); |
| err++; |
| } |
| } |
| } |
| |
| return warned = err; |
| } |
| #endif /* WATCH_LIST */ |