cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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mock_request.c (1970B)

      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
     30struct i915_request *
     31mock_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
     44bool 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}