Jakub Czapiga | db4b21a | 2021-05-25 15:46:37 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | |
| 3 | #include <tests/test.h> |
| 4 | #include <cbmem.h> |
Jakub Czapiga | ea61942 | 2021-11-23 08:43:25 +0000 | [diff] [blame] | 5 | #include <commonlib/bsd/cbmem_id.h> |
Jakub Czapiga | db4b21a | 2021-05-25 15:46:37 +0200 | [diff] [blame] | 6 | #include <stage_cache.h> |
| 7 | |
| 8 | #define CBMEM_SIZE (32 * KiB) |
| 9 | |
| 10 | /* CBMEM top pointer used by implementation. */ |
| 11 | extern uintptr_t _cbmem_top_ptr; |
| 12 | |
| 13 | void cbmem_run_init_hooks(int is_recovery) |
| 14 | { |
| 15 | } |
| 16 | |
| 17 | static void *get_cbmem_ptr(void) |
| 18 | { |
| 19 | void *cbmem_top_ptr = (void *)_cbmem_top_ptr; |
| 20 | if (cbmem_top_ptr) |
| 21 | return cbmem_top_ptr - CBMEM_SIZE; |
| 22 | else |
| 23 | return NULL; |
| 24 | } |
| 25 | |
| 26 | static void clear_cbmem(void) |
| 27 | { |
| 28 | void *ptr = get_cbmem_ptr(); |
| 29 | if (ptr) |
| 30 | memset(ptr, 0, CBMEM_SIZE); |
| 31 | } |
| 32 | |
| 33 | int setup_test(void **state) |
| 34 | { |
| 35 | void *cbmem_top_ptr = malloc(CBMEM_SIZE); |
| 36 | |
| 37 | if (!cbmem_top_ptr) |
| 38 | return -1; |
| 39 | |
| 40 | _cbmem_top_ptr = (uintptr_t)cbmem_top_ptr + CBMEM_SIZE; |
| 41 | clear_cbmem(); |
| 42 | cbmem_initialize_empty(); |
| 43 | return 0; |
| 44 | } |
| 45 | |
| 46 | int teardown_test(void **state) |
| 47 | { |
| 48 | if (_cbmem_top_ptr && (_cbmem_top_ptr - CBMEM_SIZE)) |
| 49 | free((void *)(_cbmem_top_ptr - CBMEM_SIZE)); |
| 50 | |
| 51 | _cbmem_top_ptr = 0; |
| 52 | return 0; |
| 53 | } |
| 54 | |
| 55 | /* This function is used as prog_entry of struct prog to prevent potential calls to unaccessible |
| 56 | or incorrect addresses. */ |
| 57 | void prog_entry_mock(void *arg) |
| 58 | { |
| 59 | } |
| 60 | |
| 61 | /* This test checks if stage_cache_add() correctly adds CBMEM_ID_STAGE_x_META |
| 62 | and CBMEM_ID_STAGEx_CACHE entries to cbmem. stage_cache_add() must create meta |
| 63 | entry containing load address, entry address and argument for it. It also must |
| 64 | copy buffer pointer pointed by start pointer of prog struct to cache entry. */ |
| 65 | void test_stage_cache_add(void **state) |
| 66 | { |
| 67 | const int id = 12; |
| 68 | int arg = 0xC14; |
| 69 | struct stage_cache *meta = NULL; |
| 70 | uint8_t *prog_data_buf = NULL; |
| 71 | const size_t data_sz = 4 * KiB; |
| 72 | uint8_t *data = malloc(data_sz); |
| 73 | struct prog prog_data = {0}; |
| 74 | |
| 75 | assert_non_null(data); |
| 76 | memset(data, 0xDB, data_sz); |
| 77 | prog_data = (struct prog)PROG_INIT(PROG_ROMSTAGE, "test_prog"); |
| 78 | prog_set_area(&prog_data, data, data_sz); |
| 79 | prog_set_entry(&prog_data, prog_entry_mock, &arg); |
| 80 | |
| 81 | stage_cache_add(id, &prog_data); |
| 82 | |
| 83 | meta = cbmem_find(CBMEM_ID_STAGEx_META + id); |
| 84 | assert_non_null(meta); |
| 85 | assert_int_equal(meta->load_addr, (uintptr_t)prog_start(&prog_data)); |
| 86 | assert_int_equal(meta->entry_addr, (uintptr_t)prog_entry(&prog_data)); |
| 87 | assert_int_equal(meta->arg, (uintptr_t)prog_entry_arg(&prog_data)); |
| 88 | |
| 89 | prog_data_buf = cbmem_find(CBMEM_ID_STAGEx_CACHE + id); |
| 90 | assert_non_null(prog_data_buf); |
| 91 | assert_memory_equal(data, prog_data_buf, data_sz); |
| 92 | |
| 93 | free(data); |
| 94 | } |
| 95 | |
| 96 | /* This test checks if stage_cache_add_raw() correctly creates entry with data from |
| 97 | provided buffer. Data should be accessible using cbmem_find() with |
| 98 | (CBMEM_ID_STAGEx_RAW + id) parameter. */ |
| 99 | void test_stage_cache_add_raw(void **state) |
| 100 | { |
| 101 | const int id = 55; |
| 102 | const size_t data_sz = 8 * KiB; |
| 103 | uint8_t *data = malloc(data_sz); |
| 104 | uint8_t *data_raw = NULL; |
| 105 | |
| 106 | assert_non_null(data); |
| 107 | memset(data, 0x91, data_sz); |
| 108 | |
| 109 | stage_cache_add_raw(id, data, data_sz); |
| 110 | |
| 111 | data_raw = cbmem_find(CBMEM_ID_STAGEx_RAW + id); |
| 112 | assert_non_null(data_raw); |
| 113 | assert_memory_equal(data_raw, data, data_sz); |
| 114 | |
| 115 | free(data); |
| 116 | } |
| 117 | |
| 118 | |
| 119 | /* This test checks if stage_cache_get_raw() correctly extracts base and size of previously |
| 120 | added entry. */ |
| 121 | void test_stage_cache_get_raw(void **state) |
| 122 | { |
| 123 | const int id = 23; |
| 124 | const size_t data_sz = 3 * KiB; |
| 125 | uint8_t *data = malloc(data_sz); |
| 126 | size_t data_out_sz = 0; |
| 127 | uint8_t *data_out = NULL; |
| 128 | |
| 129 | assert_non_null(data); |
| 130 | memset(data, 0x3c, data_sz); |
| 131 | stage_cache_add_raw(id, data, data_sz); |
| 132 | |
| 133 | stage_cache_get_raw(id, (void **)&data_out, &data_out_sz); |
| 134 | |
| 135 | assert_int_equal(data_sz, data_out_sz); |
| 136 | assert_memory_equal(data, data_out, data_sz); |
| 137 | |
| 138 | free(data); |
| 139 | } |
| 140 | |
| 141 | /* This test checks if stage_cache_load_stage() correctly loads previously added stage data |
| 142 | and its metadata. */ |
| 143 | void test_stage_cache_load_stage(void **state) |
| 144 | { |
| 145 | int id = 0xCC; |
| 146 | struct prog prog_out = {0}; |
| 147 | const size_t data_sz = 7 * KiB; |
| 148 | uint8_t *data = malloc(data_sz); |
| 149 | uint8_t *data_bak = malloc(data_sz); |
| 150 | struct prog prog_data = {0}; |
| 151 | int arg = 0x33224455; |
| 152 | |
| 153 | assert_non_null(data); |
| 154 | assert_non_null(data_bak); |
| 155 | memset(data, 0x45, data_sz); |
| 156 | |
| 157 | prog_data = (struct prog)PROG_INIT(PROG_RAMSTAGE, "test_prog"); |
| 158 | prog_set_area(&prog_data, data, data_sz); |
| 159 | prog_set_entry(&prog_data, prog_entry_mock, &arg); |
| 160 | stage_cache_add(id, &prog_data); |
| 161 | |
| 162 | /* Copy current data to backup buffer and clear current buffer */ |
| 163 | memcpy(data_bak, data, data_sz); |
| 164 | memset(data, 0, data_sz); |
| 165 | |
| 166 | /* Load stage data. Data should be returned to the same buffer. */ |
| 167 | stage_cache_load_stage(id, &prog_out); |
| 168 | |
| 169 | /* Data should be same as it was before */ |
| 170 | assert_memory_equal(data, data_bak, data_sz); |
| 171 | assert_int_equal(prog_start(&prog_data), prog_start(&prog_out)); |
| 172 | assert_int_equal(prog_size(&prog_data), prog_size(&prog_out)); |
| 173 | assert_ptr_equal(prog_entry(&prog_data), prog_entry(&prog_out)); |
| 174 | assert_ptr_equal(prog_entry_arg(&prog_data), prog_entry_arg(&prog_out)); |
| 175 | |
| 176 | free(data_bak); |
| 177 | free(data); |
| 178 | } |
| 179 | |
| 180 | int main(void) |
| 181 | { |
| 182 | const struct CMUnitTest tests[] = { |
Jakub Czapiga | c08b6a7 | 2022-01-10 13:36:47 +0000 | [diff] [blame] | 183 | cmocka_unit_test_setup_teardown(test_stage_cache_add, setup_test, |
| 184 | teardown_test), |
| 185 | cmocka_unit_test_setup_teardown(test_stage_cache_add_raw, setup_test, |
| 186 | teardown_test), |
| 187 | cmocka_unit_test_setup_teardown(test_stage_cache_get_raw, setup_test, |
| 188 | teardown_test), |
| 189 | cmocka_unit_test_setup_teardown(test_stage_cache_load_stage, setup_test, |
| 190 | teardown_test), |
Jakub Czapiga | db4b21a | 2021-05-25 15:46:37 +0200 | [diff] [blame] | 191 | }; |
| 192 | |
Jakub Czapiga | 7c6081e | 2021-08-25 16:27:35 +0200 | [diff] [blame] | 193 | return cb_run_group_tests(tests, NULL, NULL); |
Jakub Czapiga | db4b21a | 2021-05-25 15:46:37 +0200 | [diff] [blame] | 194 | } |