LXR linux/tools/testing/selftests/sync/sync

   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
  32int 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