test/dm/test-main.c

   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 */
  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 */
  45 static int do_autoprobe(struct unit_test_state *uts)
  46 {
  47         struct udevice *dev;
  48         int ret;
  49
  50         /* Scanning the uclass is enough to probe all the devices */
  51         for (ret = uclass_first_device(UCLASS_TEST, &dev);
  52              dev;
  53              ret = uclass_next_device(&dev))
  54                 ;
  55
  56         return ret;
  57 }
  58
  59 static int dm_test_destroy(struct unit_test_state *uts)
  60 {
  61         int id;
  62
  63         for (id = 0; id < UCLASS_COUNT; id++) {
  64                 struct uclass *uc;
  65
  66                 /*
  67                  * If the uclass doesn't exist we don't want to create it. So
  68                  * check that here before we call uclass_find_device()/
  69                  */
  70                 uc = uclass_find(id);
  71                 if (!uc)
  72                         continue;
  73                 ut_assertok(uclass_destroy(uc));
  74         }
  75
  76         return 0;
  77 }
  78
  79 static int dm_do_test(struct unit_test_state *uts, struct unit_test *test,
  80                       bool of_live)
  81 {
  82         struct sandbox_state *state = state_get_current();
  83         const char *fname = strrchr(test->file, '/') + 1;
  84
  85         printf("Test: %s: %s%s\n", test->name, fname,
  86                !of_live ? " (flat tree)" : "");
  87         ut_assertok(dm_test_init(uts, of_live));
  88
  89         uts->start = mallinfo();
  90         if (test->flags & DM_TESTF_SCAN_PDATA)
  91                 ut_assertok(dm_scan_platdata(false));
  92         if (test->flags & DM_TESTF_PROBE_TEST)
  93                 ut_assertok(do_autoprobe(uts));
  94         if (test->flags & DM_TESTF_SCAN_FDT)
  95                 ut_assertok(dm_scan_fdt(gd->fdt_blob, false));
  96
  97         /*
  98          * Silence the console and rely on console reocrding to get
  99          * our output.
 100          */
 101         console_record_reset();
 102         if (!state->show_test_output)
 103                 gd->flags |= GD_FLG_SILENT;
 104         test->func(uts);
 105         gd->flags &= ~GD_FLG_SILENT;
 106         state_set_skip_delays(false);
 107
 108         ut_assertok(dm_test_destroy(uts));
 109
 110         return 0;
 111 }
 112
 113 /**
 114  * dm_test_run_on_flattree() - Check if we should run a test with flat DT
 115  *
 116  * This skips long/slow tests where there is not much value in running a flat
 117  * DT test in addition to a live DT test.
 118  *
 119  * @return true to run the given test on the flat device tree
 120  */
 121 static bool dm_test_run_on_flattree(struct unit_test *test)
 122 {
 123         const char *fname = strrchr(test->file, '/') + 1;
 124
 125         return !strstr(fname, "video") || strstr(test->name, "video_base");
 126 }
 127
 128 static int dm_test_main(const char *test_name)
 129 {
 130         struct unit_test *tests = ll_entry_start(struct unit_test, dm_test);
 131         const int n_ents = ll_entry_count(struct unit_test, dm_test);
 132         struct unit_test_state *uts = &global_dm_test_state;
 133         struct unit_test *test;
 134         int run_count;
 135
 136         uts->priv = &_global_priv_dm_test_state;
 137         uts->fail_count = 0;
 138
 139         /*
 140          * If we have no device tree, or it only has a root node, then these
 141          * tests clearly aren't going to work...
 142          */
 143         if (!gd->fdt_blob || fdt_next_node(gd->fdt_blob, 0, NULL) < 0) {
 144                 puts("Please run with test device tree:\n"
 145                      "    ./u-boot -d arch/sandbox/dts/test.dtb\n");
 146                 ut_assert(gd->fdt_blob);
 147         }
 148
 149         if (!test_name)
 150                 printf("Running %d driver model tests\n", n_ents);
 151
 152         run_count = 0;
 153 #ifdef CONFIG_OF_LIVE
 154         uts->of_root = gd->of_root;
 155 #endif
 156         for (test = tests; test < tests + n_ents; test++) {
 157                 const char *name = test->name;
 158                 int runs;
 159
 160                 /* All tests have this prefix */
 161                 if (!strncmp(name, "dm_test_", 8))
 162                         name += 8;
 163                 if (test_name && strcmp(test_name, name))
 164                         continue;
 165
 166                 /* Run with the live tree if possible */
 167                 runs = 0;
 168                 if (IS_ENABLED(CONFIG_OF_LIVE)) {
 169                         if (!(test->flags & DM_TESTF_FLAT_TREE)) {
 170                                 ut_assertok(dm_do_test(uts, test, true));
 171                                 runs++;
 172                         }
 173                 }
 174
 175                 /*
 176                  * Run with the flat tree if we couldn't run it with live tree,
 177                  * or it is a core test.
 178                  */
 179                 if (!(test->flags & DM_TESTF_LIVE_TREE) &&
 180                     (!runs || dm_test_run_on_flattree(test))) {
 181                         ut_assertok(dm_do_test(uts, test, false));
 182                         runs++;
 183                 }
 184                 run_count += runs;
 185         }
 186
 187         if (test_name && !run_count)
 188                 printf("Test '%s' not found\n", test_name);
 189         else
 190                 printf("Failures: %d\n", uts->fail_count);
 191
 192         gd->dm_root = NULL;
 193         ut_assertok(dm_init(false));
 194         dm_scan_platdata(false);
 195         dm_scan_fdt(gd->fdt_blob, false);
 196
 197         return uts->fail_count ? CMD_RET_FAILURE : 0;
 198 }
 199
 200 int do_ut_dm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 201 {
 202         const char *test_name = NULL;
 203
 204         if (argc > 1)
 205                 test_name = argv[1];
 206
 207         return dm_test_main(test_name);
 208 }