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/*
* 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 *engine;
int err = 0;
int i;
if (warned)
return 0;
for_each_engine(engine, dev_priv, i) {
list_for_each_entry(obj, &engine->active_list,
engine_list[engine->id]) {
if (obj->base.dev != dev ||
!atomic_read(&obj->base.refcount.refcount)) {
DRM_ERROR("%s: freed active obj %p\n",
engine->name, obj);
err++;
break;
} else if (!obj->active ||
obj->last_read_req[engine->id] == NULL) {
DRM_ERROR("%s: invalid active obj %p\n",
engine->name, obj);
err++;
} else if (obj->base.write_domain) {
DRM_ERROR("%s: invalid write obj %p (w %x)\n",
engine->name,
obj, obj->base.write_domain);
err++;
}
}
}
return warned = err;
}
#endif /* WATCH_LIST */
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