| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <crc_byte.h> |
| #include <spd_bin.h> |
| #include <spd_cache.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <tests/test.h> |
| #include <tests/lib/spd_cache_data.h> |
| |
| struct region_device flash_rdev_rw; |
| static char *flash_buffer = NULL; |
| static size_t flash_buffer_size = 0; |
| |
| static int setup_spd_cache(void **state) |
| { |
| flash_buffer_size = SC_SPD_TOTAL_LEN + SC_CRC_LEN; |
| flash_buffer = malloc(flash_buffer_size); |
| |
| if (flash_buffer == NULL) { |
| flash_buffer_size = 0; |
| return -1; |
| } |
| |
| rdev_chain_mem_rw(&flash_rdev_rw, flash_buffer, flash_buffer_size); |
| return 0; |
| } |
| |
| static int setup_spd_cache_test(void **state) |
| { |
| memset(flash_buffer, 0xff, flash_buffer_size); |
| return 0; |
| } |
| |
| static int teardown_spd_cache(void **state) |
| { |
| rdev_chain_mem_rw(&flash_rdev_rw, NULL, 0); |
| free(flash_buffer); |
| flash_buffer = NULL; |
| flash_buffer_size = 0; |
| return 0; |
| } |
| |
| |
| int fmap_locate_area_as_rdev(const char *name, struct region_device *area) |
| { |
| return rdev_chain(area, &flash_rdev_rw, 0, flash_buffer_size); |
| } |
| |
| /* This test verifies if load_spd_cache() correctly loads spd_cache pointer and size |
| from provided region_device. Memory region device is returned by our |
| fmap_locate_area_as_rdev() override. */ |
| static void test_load_spd_cache(void **state) |
| { |
| uint8_t *spd_cache; |
| size_t spd_cache_sz; |
| |
| assert_int_equal(CB_SUCCESS, load_spd_cache(&spd_cache, &spd_cache_sz)); |
| assert_ptr_equal(flash_buffer, spd_cache); |
| assert_int_equal(SC_SPD_TOTAL_LEN + SC_CRC_LEN, spd_cache_sz); |
| } |
| |
| static void calc_spd_cache_crc(uint8_t *spd_cache) |
| { |
| *(uint16_t *)(spd_cache + SC_CRC_OFFSET) = |
| CRC(spd_cache, SC_SPD_TOTAL_LEN, crc16_byte); |
| } |
| |
| __attribute__((unused)) |
| static void fill_spd_cache_ddr3(uint8_t *spd_cache, size_t spd_cache_sz) |
| { |
| assert_true(spd_cache_sz >= (spd_data_ddr3_1_sz + sizeof(uint16_t))); |
| |
| memcpy(spd_cache, spd_data_ddr3_1, spd_data_ddr3_1_sz); |
| memset(spd_cache + spd_data_ddr3_1_sz, 0, spd_cache_sz - spd_data_ddr3_1_sz); |
| calc_spd_cache_crc(spd_cache); |
| } |
| |
| __attribute__((unused)) |
| static void fill_spd_cache_ddr4(uint8_t *spd_cache, size_t spd_cache_sz) |
| { |
| assert_true(spd_cache_sz >= |
| (spd_data_ddr4_1_sz + spd_data_ddr4_2_sz + sizeof(uint16_t))); |
| |
| memcpy(spd_cache, spd_data_ddr4_1, spd_data_ddr4_1_sz); |
| memcpy(spd_cache + spd_data_ddr4_1_sz, spd_data_ddr4_2, spd_data_ddr4_2_sz); |
| memset(spd_cache + spd_data_ddr4_1_sz + spd_data_ddr4_2_sz, 0, |
| spd_cache_sz - (spd_data_ddr4_1_sz + spd_data_ddr4_2_sz)); |
| calc_spd_cache_crc(spd_cache); |
| } |
| |
| static void test_spd_fill_from_cache(void **state) |
| { |
| struct spd_block blk; |
| uint8_t *spd_cache; |
| size_t spd_cache_sz; |
| assert_int_equal(CB_SUCCESS, load_spd_cache(&spd_cache, &spd_cache_sz)); |
| |
| /* Empty spd cache */ |
| assert_int_equal(CB_ERR, spd_fill_from_cache(spd_cache, &blk)); |
| |
| #if __TEST_SPD_CACHE_DDR == 3 |
| fill_spd_cache_ddr3(spd_cache, spd_cache_sz); |
| #elif __TEST_SPD_CACHE_DDR == 4 |
| fill_spd_cache_ddr4(spd_cache, spd_cache_sz); |
| #endif |
| assert_int_equal(CB_SUCCESS, spd_fill_from_cache(spd_cache, &blk)); |
| } |
| |
| |
| static void test_spd_cache_is_valid(void **state) |
| { |
| uint8_t *spd_cache; |
| size_t spd_cache_sz; |
| assert_int_equal(CB_SUCCESS, load_spd_cache(&spd_cache, &spd_cache_sz)); |
| |
| /* Empty, incorrect SPD */ |
| assert_false(spd_cache_is_valid(spd_cache, spd_cache_sz)); |
| |
| #if __TEST_SPD_CACHE_DDR == 3 |
| fill_spd_cache_ddr3(spd_cache, spd_cache_sz); |
| #elif __TEST_SPD_CACHE_DDR == 4 |
| fill_spd_cache_ddr4(spd_cache, spd_cache_sz); |
| #endif |
| assert_true(spd_cache_is_valid(spd_cache, spd_cache_sz)); |
| } |
| |
| |
| /* Used for setting `sn` parameter value */ |
| static u32 get_spd_sn_ret_sn[SC_SPD_NUMS] = { 0 }; |
| static size_t get_spd_sn_ret_sn_idx = 0; |
| /* Implementation for testing purposes. */ |
| enum cb_err get_spd_sn(u8 addr, u32 *sn) |
| { |
| *sn = get_spd_sn_ret_sn[get_spd_sn_ret_sn_idx]; |
| get_spd_sn_ret_sn_idx = (get_spd_sn_ret_sn_idx + 1) % ARRAY_SIZE(get_spd_sn_ret_sn); |
| |
| return mock_type(enum cb_err); |
| } |
| |
| static void get_sn_from_spd_cache(uint8_t *spd_cache, u32 arr[]) |
| { |
| for (int i = 0; i < SC_SPD_NUMS; ++i) |
| arr[i] = *(u32 *)(spd_cache + SC_SPD_OFFSET(i) + DDR4_SPD_SN_OFF); |
| } |
| |
| /* check_if_dimm_changed() has is used only with DDR4, so there tests are not used for DDR3 */ |
| __attribute__((unused)) |
| static void test_check_if_dimm_changed_not_changed(void **state) |
| { |
| uint8_t *spd_cache; |
| size_t spd_cache_sz; |
| struct spd_block blk = { .addr_map = {0}, .spd_array = {0}, .len = 0 }; |
| |
| assert_int_equal(CB_SUCCESS, load_spd_cache(&spd_cache, &spd_cache_sz)); |
| fill_spd_cache_ddr4(spd_cache, spd_cache_sz); |
| assert_int_equal(CB_SUCCESS, spd_fill_from_cache(spd_cache, &blk)); |
| |
| get_sn_from_spd_cache(spd_cache, get_spd_sn_ret_sn); |
| get_spd_sn_ret_sn_idx = 0; |
| will_return_count(get_spd_sn, CB_SUCCESS, SC_SPD_NUMS); |
| assert_false(check_if_dimm_changed(spd_cache, &blk)); |
| } |
| |
| __attribute__((unused)) |
| static void test_check_if_dimm_changed_sn_error(void **state) |
| { |
| uint8_t *spd_cache; |
| size_t spd_cache_sz; |
| struct spd_block blk = { .addr_map = {0}, .spd_array = {0}, .len = 0 }; |
| |
| assert_int_equal(CB_SUCCESS, load_spd_cache(&spd_cache, &spd_cache_sz)); |
| fill_spd_cache_ddr4(spd_cache, spd_cache_sz); |
| assert_int_equal(CB_SUCCESS, spd_fill_from_cache(spd_cache, &blk)); |
| |
| /* Simulate error */ |
| will_return_count(get_spd_sn, CB_ERR, 1); |
| assert_true(check_if_dimm_changed(spd_cache, &blk)); |
| } |
| |
| __attribute__((unused)) |
| static void test_check_if_dimm_changed_sodimm_lost(void **state) |
| { |
| uint8_t *spd_cache; |
| size_t spd_cache_sz; |
| struct spd_block blk = { .addr_map = {0}, .spd_array = {0}, .len = 0 }; |
| |
| assert_int_equal(CB_SUCCESS, load_spd_cache(&spd_cache, &spd_cache_sz)); |
| fill_spd_cache_ddr4(spd_cache, spd_cache_sz); |
| assert_int_equal(CB_SUCCESS, spd_fill_from_cache(spd_cache, &blk)); |
| get_sn_from_spd_cache(spd_cache, get_spd_sn_ret_sn); |
| memset(spd_cache + spd_data_ddr4_1_sz, 0xff, spd_data_ddr4_2_sz); |
| |
| get_spd_sn_ret_sn_idx = 0; |
| will_return_always(get_spd_sn, CB_SUCCESS); |
| assert_true(check_if_dimm_changed(spd_cache, &blk)); |
| } |
| |
| __attribute__((unused)) |
| static void test_check_if_dimm_changed_new_sodimm(void **state) |
| { |
| uint8_t *spd_cache; |
| size_t spd_cache_sz; |
| struct spd_block blk = { .addr_map = {0}, .spd_array = {0}, .len = 0 }; |
| |
| assert_int_equal(CB_SUCCESS, load_spd_cache(&spd_cache, &spd_cache_sz)); |
| fill_spd_cache_ddr4(spd_cache, spd_cache_sz); |
| assert_int_equal(CB_SUCCESS, spd_fill_from_cache(spd_cache, &blk)); |
| get_sn_from_spd_cache(spd_cache, get_spd_sn_ret_sn); |
| memcpy(spd_cache + spd_data_ddr4_1_sz + spd_data_ddr4_2_sz, |
| spd_data_ddr4_2, spd_data_ddr4_2_sz); |
| |
| get_spd_sn_ret_sn_idx = 0; |
| will_return_always(get_spd_sn, CB_SUCCESS); |
| assert_true(check_if_dimm_changed(spd_cache, &blk)); |
| } |
| |
| __attribute__((unused)) |
| static void test_check_if_dimm_changed_sn_changed(void **state) |
| { |
| uint8_t *spd_cache; |
| size_t spd_cache_sz; |
| struct spd_block blk = { .addr_map = {0}, .spd_array = {0}, .len = 0 }; |
| |
| assert_int_equal(CB_SUCCESS, load_spd_cache(&spd_cache, &spd_cache_sz)); |
| fill_spd_cache_ddr4(spd_cache, spd_cache_sz); |
| assert_int_equal(CB_SUCCESS, spd_fill_from_cache(spd_cache, &blk)); |
| get_sn_from_spd_cache(spd_cache, get_spd_sn_ret_sn); |
| *(u32 *)(spd_cache + SC_SPD_OFFSET(0) + DDR4_SPD_SN_OFF) = 0x43211234; |
| |
| get_spd_sn_ret_sn_idx = 0; |
| will_return_always(get_spd_sn, CB_SUCCESS); |
| assert_true(check_if_dimm_changed(spd_cache, &blk)); |
| } |
| |
| int main(void) |
| { |
| const struct CMUnitTest tests[] = { |
| cmocka_unit_test_setup(test_load_spd_cache, setup_spd_cache_test), |
| cmocka_unit_test_setup(test_spd_fill_from_cache, setup_spd_cache_test), |
| cmocka_unit_test_setup(test_spd_cache_is_valid, setup_spd_cache_test), |
| #if __TEST_SPD_CACHE_DDR == 4 |
| cmocka_unit_test_setup(test_check_if_dimm_changed_not_changed, |
| setup_spd_cache_test), |
| cmocka_unit_test_setup(test_check_if_dimm_changed_sn_error, |
| setup_spd_cache_test), |
| cmocka_unit_test_setup(test_check_if_dimm_changed_sodimm_lost, |
| setup_spd_cache_test), |
| cmocka_unit_test_setup(test_check_if_dimm_changed_new_sodimm, |
| setup_spd_cache_test), |
| cmocka_unit_test_setup(test_check_if_dimm_changed_sn_changed, |
| setup_spd_cache_test), |
| #endif |
| }; |
| |
| return cb_run_group_tests(tests, setup_spd_cache, teardown_spd_cache); |
| } |