ceeac3fd361800b51982c26f49727b317f75399b
[platform/kernel/u-boot.git] / test / dm / test-dm.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (c) 2013 Google, Inc
4  */
5
6 #include <common.h>
7 #include <command.h>
8 #include <console.h>
9 #include <dm.h>
10 #include <errno.h>
11 #include <log.h>
12 #include <malloc.h>
13 #include <asm/global_data.h>
14 #include <asm/state.h>
15 #include <dm/test.h>
16 #include <dm/root.h>
17 #include <dm/uclass-internal.h>
18 #include <test/test.h>
19 #include <test/test.h>
20 #include <test/ut.h>
21
22 DECLARE_GLOBAL_DATA_PTR;
23
24 struct unit_test_state global_dm_test_state;
25 static struct dm_test_state _global_priv_dm_test_state;
26
27 int dm_test_init(struct unit_test_state *uts)
28 {
29         struct dm_test_state *dms = uts->priv;
30         bool of_live = uts->of_live;
31
32         memset(dms, '\0', sizeof(*dms));
33         gd->dm_root = NULL;
34         if (!CONFIG_IS_ENABLED(OF_PLATDATA))
35                 memset(dm_testdrv_op_count, '\0', sizeof(dm_testdrv_op_count));
36         state_reset_for_test(state_get_current());
37
38         /* Determine whether to make the live tree available */
39         gd_set_of_root(of_live ? uts->of_root : NULL);
40         ut_assertok(dm_init(of_live));
41         dms->root = dm_root();
42
43         return 0;
44 }
45
46 static int dm_test_destroy(struct unit_test_state *uts)
47 {
48         int id;
49
50         for (id = 0; id < UCLASS_COUNT; id++) {
51                 struct uclass *uc;
52
53                 /*
54                  * If the uclass doesn't exist we don't want to create it. So
55                  * check that here before we call uclass_find_device().
56                  */
57                 uc = uclass_find(id);
58                 if (!uc)
59                         continue;
60                 ut_assertok(uclass_destroy(uc));
61         }
62
63         return 0;
64 }
65
66 static int dm_do_test(struct unit_test_state *uts, struct unit_test *test,
67                       bool of_live)
68 {
69         const char *fname = strrchr(test->file, '/') + 1;
70
71         printf("Test: %s: %s%s\n", test->name, fname,
72                !of_live ? " (flat tree)" : "");
73         uts->of_live = of_live;
74
75         ut_assertok(test_pre_run(uts, test));
76
77         test->func(uts);
78
79         ut_assertok(test_post_run(uts, test));
80
81         ut_assertok(dm_test_destroy(uts));
82
83         return 0;
84 }
85
86 /**
87  * dm_test_run_on_flattree() - Check if we should run a test with flat DT
88  *
89  * This skips long/slow tests where there is not much value in running a flat
90  * DT test in addition to a live DT test.
91  *
92  * @return true to run the given test on the flat device tree
93  */
94 static bool dm_test_run_on_flattree(struct unit_test *test)
95 {
96         const char *fname = strrchr(test->file, '/') + 1;
97
98         return !strstr(fname, "video") || strstr(test->name, "video_base");
99 }
100
101 static bool test_matches(const char *test_name, const char *find_name)
102 {
103         if (!find_name)
104                 return true;
105
106         if (!strcmp(test_name, find_name))
107                 return true;
108
109         /* All tests have this prefix */
110         if (!strncmp(test_name, "dm_test_", 8))
111                 test_name += 8;
112
113         if (!strcmp(test_name, find_name))
114                 return true;
115
116         return false;
117 }
118
119 int dm_test_run(const char *test_name)
120 {
121         struct unit_test *tests = ll_entry_start(struct unit_test, dm_test);
122         const int n_ents = ll_entry_count(struct unit_test, dm_test);
123         struct unit_test_state *uts = &global_dm_test_state;
124         struct unit_test *test;
125         int found;
126
127         uts->priv = &_global_priv_dm_test_state;
128         uts->fail_count = 0;
129
130         if (!CONFIG_IS_ENABLED(OF_PLATDATA)) {
131                 /*
132                  * If we have no device tree, or it only has a root node, then
133                  * these * tests clearly aren't going to work...
134                  */
135                 if (!gd->fdt_blob || fdt_next_node(gd->fdt_blob, 0, NULL) < 0) {
136                         puts("Please run with test device tree:\n"
137                              "    ./u-boot -d arch/sandbox/dts/test.dtb\n");
138                         ut_assert(gd->fdt_blob);
139                 }
140         }
141
142         if (!test_name)
143                 printf("Running %d driver model tests\n", n_ents);
144         else
145
146         found = 0;
147         uts->of_root = gd_of_root();
148         for (test = tests; test < tests + n_ents; test++) {
149                 const char *name = test->name;
150                 int runs;
151
152                 if (!test_matches(name, test_name))
153                         continue;
154
155                 /* Run with the live tree if possible */
156                 runs = 0;
157                 if (CONFIG_IS_ENABLED(OF_LIVE)) {
158                         if (!(test->flags & UT_TESTF_FLAT_TREE)) {
159                                 ut_assertok(dm_do_test(uts, test, true));
160                                 runs++;
161                         }
162                 }
163
164                 /*
165                  * Run with the flat tree if we couldn't run it with live tree,
166                  * or it is a core test.
167                  */
168                 if (!(test->flags & UT_TESTF_LIVE_TREE) &&
169                     (!runs || dm_test_run_on_flattree(test))) {
170                         ut_assertok(dm_do_test(uts, test, false));
171                         runs++;
172                 }
173                 found++;
174         }
175
176         if (test_name && !found)
177                 printf("Test '%s' not found\n", test_name);
178         else
179                 printf("Failures: %d\n", uts->fail_count);
180
181         /* Put everything back to normal so that sandbox works as expected */
182         gd_set_of_root(uts->of_root);
183         gd->dm_root = NULL;
184         ut_assertok(dm_init(CONFIG_IS_ENABLED(OF_LIVE)));
185         dm_scan_plat(false);
186         if (!CONFIG_IS_ENABLED(OF_PLATDATA))
187                 dm_scan_fdt(false);
188
189         return uts->fail_count ? CMD_RET_FAILURE : 0;
190 }
191
192 int do_ut_dm(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
193 {
194         const char *test_name = NULL;
195
196         if (argc > 1)
197                 test_name = argv[1];
198
199         return dm_test_run(test_name);
200 }