drivers/gpu/drm/i915/selftests/mock_request.c

   1 /*
   2  * Copyright © 2016 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  */
  24
  25 #include "gem/selftests/igt_gem_utils.h"
  26 #include "gt/mock_engine.h"
  27
  28 #include "mock_request.h"
  29
  30 struct i915_request *
  31 mock_request(struct intel_context *ce, unsigned long delay)
  32 {
  33         struct i915_request *request;
  34
  35         /* NB the i915->requests slab cache is enlarged to fit mock_request */
  36         request = intel_context_create_request(ce);
  37         if (IS_ERR(request))
  38                 return NULL;
  39
  40         request->mock.delay = delay;
  41         return request;
  42 }
  43
  44 bool mock_cancel_request(struct i915_request *request)
  45 {
  46         struct mock_engine *engine =
  47                 container_of(request->engine, typeof(*engine), base);
  48         bool was_queued;
  49
  50         spin_lock_irq(&engine->hw_lock);
  51         was_queued = !list_empty(&request->mock.link);
  52         list_del_init(&request->mock.link);
  53         spin_unlock_irq(&engine->hw_lock);
  54
  55         if (was_queued)
  56                 i915_request_unsubmit(request);
  57
  58         return was_queued;
  59 }