1 /*
2 * Copyright (c) 2013 Google, Inc
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7 #include <common.h>
8 #include <command.h>
9 #include <console.h>
10 #include <dm.h>
11 #include <errno.h>
12 #include <malloc.h>
13 #include <asm/state.h>
14 #include <dm/test.h>
15 #include <dm/root.h>
16 #include <dm/uclass-internal.h>
17 #include <test/ut.h>
18
19 DECLARE_GLOBAL_DATA_PTR;
20
21 struct unit_test_state global_dm_test_state;
22 static struct dm_test_state _global_priv_dm_test_state;
23
24 /* Get ready for testing */
dm_test_init(struct unit_test_state * uts,bool of_live)25 static int dm_test_init(struct unit_test_state *uts, bool of_live)
26 {
27 struct dm_test_state *dms = uts->priv;
28
29 memset(dms, '\0', sizeof(*dms));
30 gd->dm_root = NULL;
31 memset(dm_testdrv_op_count, '\0', sizeof(dm_testdrv_op_count));
32 state_reset_for_test(state_get_current());
33
34 #ifdef CONFIG_OF_LIVE
35 /* Determine whether to make the live tree available */
36 gd->of_root = of_live ? uts->of_root : NULL;
37 #endif
38 ut_assertok(dm_init(of_live));
39 dms->root = dm_root();
40
41 return 0;
42 }
43
44 /* Ensure all the test devices are probed */
do_autoprobe(struct unit_test_state * uts)45 static int do_autoprobe(struct unit_test_state *uts)
46 {
47 struct udevice *dev;
48
49 /* Scanning the uclass is enough to probe all the devices */
50 for (uclass_first_device(UCLASS_TEST, &dev); dev;
51 uclass_next_device(&dev))
52 ;
53
54 return 0;
55 }
56
dm_test_destroy(struct unit_test_state * uts)57 static int dm_test_destroy(struct unit_test_state *uts)
58 {
59 int id;
60
61 for (id = 0; id < UCLASS_COUNT; id++) {
62 struct uclass *uc;
63
64 /*
65 * If the uclass doesn't exist we don't want to create it. So
66 * check that here before we call uclass_find_device()/
67 */
68 uc = uclass_find(id);
69 if (!uc)
70 continue;
71 ut_assertok(uclass_destroy(uc));
72 }
73
74 return 0;
75 }
76
dm_do_test(struct unit_test_state * uts,struct unit_test * test,bool of_live)77 static int dm_do_test(struct unit_test_state *uts, struct unit_test *test,
78 bool of_live)
79 {
80 struct sandbox_state *state = state_get_current();
81 const char *fname = strrchr(test->file, '/') + 1;
82
83 printf("Test: %s: %s%s\n", test->name, fname,
84 !of_live ? " (flat tree)" : "");
85 ut_assertok(dm_test_init(uts, of_live));
86
87 uts->start = mallinfo();
88 if (test->flags & DM_TESTF_SCAN_PDATA)
89 ut_assertok(dm_scan_platdata(false));
90 if (test->flags & DM_TESTF_PROBE_TEST)
91 ut_assertok(do_autoprobe(uts));
92 if (test->flags & DM_TESTF_SCAN_FDT)
93 ut_assertok(dm_extended_scan_fdt(gd->fdt_blob, false));
94
95 /*
96 * Silence the console and rely on console reocrding to get
97 * our output.
98 */
99 console_record_reset();
100 if (!state->show_test_output)
101 gd->flags |= GD_FLG_SILENT;
102 test->func(uts);
103 gd->flags &= ~GD_FLG_SILENT;
104 state_set_skip_delays(false);
105
106 ut_assertok(dm_test_destroy(uts));
107
108 return 0;
109 }
110
111 /**
112 * dm_test_run_on_flattree() - Check if we should run a test with flat DT
113 *
114 * This skips long/slow tests where there is not much value in running a flat
115 * DT test in addition to a live DT test.
116 *
117 * @return true to run the given test on the flat device tree
118 */
dm_test_run_on_flattree(struct unit_test * test)119 static bool dm_test_run_on_flattree(struct unit_test *test)
120 {
121 const char *fname = strrchr(test->file, '/') + 1;
122
123 return !strstr(fname, "video") || strstr(test->name, "video_base");
124 }
125
dm_test_main(const char * test_name)126 static int dm_test_main(const char *test_name)
127 {
128 struct unit_test *tests = ll_entry_start(struct unit_test, dm_test);
129 const int n_ents = ll_entry_count(struct unit_test, dm_test);
130 struct unit_test_state *uts = &global_dm_test_state;
131 struct unit_test *test;
132 int run_count;
133
134 uts->priv = &_global_priv_dm_test_state;
135 uts->fail_count = 0;
136
137 /*
138 * If we have no device tree, or it only has a root node, then these
139 * tests clearly aren't going to work...
140 */
141 if (!gd->fdt_blob || fdt_next_node(gd->fdt_blob, 0, NULL) < 0) {
142 puts("Please run with test device tree:\n"
143 " ./u-boot -d arch/sandbox/dts/test.dtb\n");
144 ut_assert(gd->fdt_blob);
145 }
146
147 if (!test_name)
148 printf("Running %d driver model tests\n", n_ents);
149
150 run_count = 0;
151 #ifdef CONFIG_OF_LIVE
152 uts->of_root = gd->of_root;
153 #endif
154 for (test = tests; test < tests + n_ents; test++) {
155 const char *name = test->name;
156 int runs;
157
158 /* All tests have this prefix */
159 if (!strncmp(name, "dm_test_", 8))
160 name += 8;
161 if (test_name && strcmp(test_name, name))
162 continue;
163
164 /* Run with the live tree if possible */
165 runs = 0;
166 if (IS_ENABLED(CONFIG_OF_LIVE)) {
167 if (!(test->flags & DM_TESTF_FLAT_TREE)) {
168 ut_assertok(dm_do_test(uts, test, true));
169 runs++;
170 }
171 }
172
173 /*
174 * Run with the flat tree if we couldn't run it with live tree,
175 * or it is a core test.
176 */
177 if (!(test->flags & DM_TESTF_LIVE_TREE) &&
178 (!runs || dm_test_run_on_flattree(test))) {
179 ut_assertok(dm_do_test(uts, test, false));
180 runs++;
181 }
182 run_count += runs;
183 }
184
185 if (test_name && !run_count)
186 printf("Test '%s' not found\n", test_name);
187 else
188 printf("Failures: %d\n", uts->fail_count);
189
190 gd->dm_root = NULL;
191 ut_assertok(dm_init(false));
192 dm_scan_platdata(false);
193 dm_scan_fdt(gd->fdt_blob, false);
194
195 return uts->fail_count ? CMD_RET_FAILURE : 0;
196 }
197
do_ut_dm(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])198 int do_ut_dm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
199 {
200 const char *test_name = NULL;
201
202 if (argc > 1)
203 test_name = argv[1];
204
205 return dm_test_main(test_name);
206 }
207