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Linux/tools/testing/selftests/sync/sync_wait.c

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  1 /*
  2  *  sync fence wait tests
  3  *  Copyright 2015-2016 Collabora Ltd.
  4  *
  5  *  Based on the implementation from the Android Open Source Project,
  6  *
  7  *  Copyright 2012 Google, Inc
  8  *
  9  *  Permission is hereby granted, free of charge, to any person obtaining a
 10  *  copy of this software and associated documentation files (the "Software"),
 11  *  to deal in the Software without restriction, including without limitation
 12  *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
 13  *  and/or sell copies of the Software, and to permit persons to whom the
 14  *  Software is furnished to do so, subject to the following conditions:
 15  *
 16  *  The above copyright notice and this permission notice shall be included in
 17  *  all copies or substantial portions of the Software.
 18  *
 19  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 20  *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 21  *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 22  *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 23  *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 24  *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 25  *  OTHER DEALINGS IN THE SOFTWARE.
 26  */
 27 
 28 #include "sync.h"
 29 #include "sw_sync.h"
 30 #include "synctest.h"
 31 
 32 int test_fence_multi_timeline_wait(void)
 33 {
 34         int timelineA, timelineB, timelineC;
 35         int fenceA, fenceB, fenceC, merged;
 36         int valid, active, signaled, ret;
 37 
 38         timelineA = sw_sync_timeline_create();
 39         timelineB = sw_sync_timeline_create();
 40         timelineC = sw_sync_timeline_create();
 41 
 42         fenceA = sw_sync_fence_create(timelineA, "fenceA", 5);
 43         fenceB = sw_sync_fence_create(timelineB, "fenceB", 5);
 44         fenceC = sw_sync_fence_create(timelineC, "fenceC", 5);
 45 
 46         merged = sync_merge("mergeFence", fenceB, fenceA);
 47         merged = sync_merge("mergeFence", fenceC, merged);
 48 
 49         valid = sw_sync_fence_is_valid(merged);
 50         ASSERT(valid, "Failure merging fence from various timelines\n");
 51 
 52         /* Confirm fence isn't signaled */
 53         active = sync_fence_count_with_status(merged, FENCE_STATUS_ACTIVE);
 54         ASSERT(active == 3, "Fence signaled too early!\n");
 55 
 56         ret = sync_wait(merged, 0);
 57         ASSERT(ret == 0,
 58                "Failure waiting on fence until timeout\n");
 59 
 60         ret = sw_sync_timeline_inc(timelineA, 5);
 61         active = sync_fence_count_with_status(merged, FENCE_STATUS_ACTIVE);
 62         signaled = sync_fence_count_with_status(merged, FENCE_STATUS_SIGNALED);
 63         ASSERT(active == 2 && signaled == 1,
 64                "Fence did not signal properly!\n");
 65 
 66         ret = sw_sync_timeline_inc(timelineB, 5);
 67         active = sync_fence_count_with_status(merged, FENCE_STATUS_ACTIVE);
 68         signaled = sync_fence_count_with_status(merged, FENCE_STATUS_SIGNALED);
 69         ASSERT(active == 1 && signaled == 2,
 70                "Fence did not signal properly!\n");
 71 
 72         ret = sw_sync_timeline_inc(timelineC, 5);
 73         active = sync_fence_count_with_status(merged, FENCE_STATUS_ACTIVE);
 74         signaled = sync_fence_count_with_status(merged, FENCE_STATUS_SIGNALED);
 75         ASSERT(active == 0 && signaled == 3,
 76                "Fence did not signal properly!\n");
 77 
 78         /* confirm you can successfully wait */
 79         ret = sync_wait(merged, 100);
 80         ASSERT(ret > 0, "Failure waiting on signaled fence\n");
 81 
 82         sw_sync_fence_destroy(merged);
 83         sw_sync_fence_destroy(fenceC);
 84         sw_sync_fence_destroy(fenceB);
 85         sw_sync_fence_destroy(fenceA);
 86         sw_sync_timeline_destroy(timelineC);
 87         sw_sync_timeline_destroy(timelineB);
 88         sw_sync_timeline_destroy(timelineA);
 89 
 90         return 0;
 91 }
 92 

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