1/*
2 *  sync test runner
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 <stdio.h>
29#include <unistd.h>
30#include <stdlib.h>
31#include <sys/types.h>
32#include <sys/stat.h>
33#include <sys/wait.h>
34#include <errno.h>
35#include <string.h>
36
37#include "../kselftest.h"
38#include "synctest.h"
39
40static int run_test(int (*test)(void), char *name)
41{
42	int result;
43	pid_t childpid;
44	int ret;
45
46	fflush(stdout);
47	childpid = fork();
48
49	if (childpid) {
50		waitpid(childpid, &result, 0);
51		if (WIFEXITED(result)) {
52			ret = WEXITSTATUS(result);
53			if (!ret)
54				ksft_test_result_pass("[RUN]\t%s\n", name);
55			else
56				ksft_test_result_fail("[RUN]\t%s\n", name);
57			return ret;
58		}
59		return 1;
60	}
61
62	exit(test());
63}
64
65static void sync_api_supported(void)
66{
67	struct stat sbuf;
68	int ret;
69
70	ret = stat("/sys/kernel/debug/sync/sw_sync", &sbuf);
71	if (!ret)
72		return;
73
74	if (errno == ENOENT)
75		ksft_exit_skip("Sync framework not supported by kernel\n");
76
77	if (errno == EACCES)
78		ksft_exit_skip("Run Sync test as root.\n");
79
80	ksft_exit_fail_msg("stat failed on /sys/kernel/debug/sync/sw_sync: %s",
81				strerror(errno));
82}
83
84int main(void)
85{
86	int err;
87
88	ksft_print_header();
89
90	sync_api_supported();
91	ksft_set_plan(3 + 7);
92
93	ksft_print_msg("[RUN]\tTesting sync framework\n");
94
95	RUN_TEST(test_alloc_timeline);
96	RUN_TEST(test_alloc_fence);
97	RUN_TEST(test_alloc_fence_negative);
98
99	RUN_TEST(test_fence_one_timeline_wait);
100	RUN_TEST(test_fence_one_timeline_merge);
101	RUN_TEST(test_fence_merge_same_fence);
102	RUN_TEST(test_fence_multi_timeline_wait);
103	RUN_TEST(test_stress_two_threads_shared_timeline);
104	RUN_TEST(test_consumer_stress_multi_producer_single_consumer);
105	RUN_TEST(test_merge_stress_random_merge);
106
107	err = ksft_get_fail_cnt();
108	if (err)
109		ksft_exit_fail_msg("%d out of %d sync tests failed\n",
110					err, ksft_test_num());
111
112	/* need this return to keep gcc happy */
113	return ksft_exit_pass();
114}
115