i915/selftests/mock_request.c

0001 /*
0002  * Copyright © 2016 Intel Corporation
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice (including the next
0012  * paragraph) shall be included in all copies or substantial portions of the
0013  * Software.
0014  *
0015  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0016  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0017  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0018  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
0019  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
0020  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
0021  * IN THE SOFTWARE.
0022  *
0023  */
0024
0025 #include "gem/selftests/igt_gem_utils.h"
0026 #include "gt/mock_engine.h"
0027
0028 #include "mock_request.h"
0029
0030 struct i915_request *
0031 mock_request(struct intel_context *ce, unsigned long delay)
0032 {
0033     struct i915_request *request;
0034
0035     /* NB the i915->requests slab cache is enlarged to fit mock_request */
0036     request = intel_context_create_request(ce);
0037     if (IS_ERR(request))
0038         return NULL;
0039
0040     request->mock.delay = delay;
0041     return request;
0042 }
0043
0044 bool mock_cancel_request(struct i915_request *request)
0045 {
0046     struct mock_engine *engine =
0047         container_of(request->engine, typeof(*engine), base);
0048     bool was_queued;
0049
0050     spin_lock_irq(&engine->hw_lock);
0051     was_queued = !list_empty(&request->mock.link);
0052     list_del_init(&request->mock.link);
0053     spin_unlock_irq(&engine->hw_lock);
0054
0055     if (was_queued)
0056         i915_request_unsubmit(request);
0057
0058     return was_queued;
0059 }