| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| /** |
| * This code was adapted from src/soc/amd/common/block/pi/amd_late_init.c |
| */ |
| |
| #include <fsp/util.h> |
| #include <memory_info.h> |
| #include <console/console.h> |
| #include <cbmem.h> |
| #include <string.h> |
| #include <ec/google/chromeec/ec.h> |
| #include <bootstate.h> |
| #include <lib.h> |
| #include <dimm_info_util.h> |
| #include <dmi_info.h> |
| #include <device/dram/ddr4.h> |
| #include <device/dram/lpddr4.h> |
| |
| /** |
| * Convert DDR clock speed (based on memory type) in MHz to the standard reported speed in MT/s |
| */ |
| static uint16_t ddr_speed_mhz_to_reported_mts(uint16_t ddr_type, uint16_t speed) |
| { |
| switch (ddr_type) { |
| case MEMORY_TYPE_DDR4: |
| return ddr4_speed_mhz_to_reported_mts(speed); |
| case MEMORY_TYPE_LPDDR4: |
| return lpddr4_speed_mhz_to_reported_mts(speed); |
| default: |
| printk(BIOS_ERR, "ERROR: Unknown memory type %x", ddr_type); |
| return 0; |
| } |
| } |
| |
| /** |
| * Populate dimm_info using AGESA TYPE17_DMI_INFO. |
| */ |
| static void transfer_memory_info(const TYPE17_DMI_INFO *dmi17, |
| struct dimm_info *dimm) |
| { |
| hexstrtobin(dmi17->SerialNumber, dimm->serial, sizeof(dimm->serial)); |
| |
| dimm->dimm_size = smbios_memory_size_to_mib(dmi17->MemorySize, dmi17->ExtSize); |
| |
| dimm->ddr_type = dmi17->MemoryType; |
| |
| dimm->configured_speed_mts = ddr_speed_mhz_to_reported_mts( |
| dmi17->MemoryType, dmi17->ConfigSpeed); |
| |
| dimm->max_speed_mts = ddr_speed_mhz_to_reported_mts(dmi17->MemoryType, dmi17->Speed); |
| |
| dimm->rank_per_dimm = dmi17->Attributes; |
| |
| dimm->mod_type = smbios_form_factor_to_spd_mod_type(dmi17->FormFactor); |
| |
| dimm->bus_width = |
| smbios_bus_width_to_spd_width(dmi17->TotalWidth, dmi17->DataWidth); |
| |
| dimm->mod_id = dmi17->ManufacturerIdCode; |
| |
| dimm->bank_locator = 0; |
| |
| strncpy((char *)dimm->module_part_number, dmi17->PartNumber, |
| sizeof(dimm->module_part_number) - 1); |
| } |
| |
| static void print_dimm_info(const struct dimm_info *dimm) |
| { |
| printk(BIOS_DEBUG, |
| "CBMEM_ID_MEMINFO:\n" |
| " dimm_size: %u\n" |
| " ddr_type: 0x%hx\n" |
| " ddr_frequency: %hu\n" |
| " rank_per_dimm: %hhu\n" |
| " channel_num: %hhu\n" |
| " dimm_num: %hhu\n" |
| " bank_locator: %hhu\n" |
| " mod_id: %hx\n" |
| " mod_type: 0x%hhx\n" |
| " bus_width: %hhu\n" |
| " serial: %02hhx%02hhx%02hhx%02hhx\n" |
| " module_part_number(%zu): %s\n", |
| dimm->dimm_size, |
| dimm->ddr_type, |
| dimm->ddr_frequency, |
| dimm->rank_per_dimm, |
| dimm->channel_num, |
| dimm->dimm_num, |
| dimm->bank_locator, |
| dimm->mod_id, |
| dimm->mod_type, |
| dimm->bus_width, |
| dimm->serial[0], |
| dimm->serial[1], |
| dimm->serial[2], |
| dimm->serial[3], |
| strlen((const char *)dimm->module_part_number), |
| (char *)dimm->module_part_number); |
| } |
| |
| static void print_dmi_info(const TYPE17_DMI_INFO *dmi17) |
| { |
| printk(BIOS_DEBUG, |
| "AGESA TYPE 17 DMI INFO:\n" |
| " Handle: %hu\n" |
| " TotalWidth: %hu\n" |
| " DataWidth: %hu\n" |
| " MemorySize: %hu\n" |
| " DeviceSet: %hhu\n" |
| " Speed: %hu\n" |
| " ManufacturerIdCode: %llx\n" |
| " Attributes: %hhu\n" |
| " ExtSize: %u\n" |
| " ConfigSpeed: %hu\n" |
| " MemoryType: 0x%x\n" |
| " FormFactor: 0x%x\n" |
| " DeviceLocator: %8s\n" |
| " BankLocator: %10s\n" |
| " SerialNumber(%zu): %9s\n" |
| " PartNumber(%zu): %19s\n", |
| dmi17->Handle, |
| dmi17->TotalWidth, |
| dmi17->DataWidth, |
| dmi17->MemorySize, |
| dmi17->DeviceSet, |
| dmi17->Speed, |
| dmi17->ManufacturerIdCode, |
| dmi17->Attributes, |
| dmi17->ExtSize, |
| dmi17->ConfigSpeed, |
| dmi17->MemoryType, |
| dmi17->FormFactor, |
| dmi17->DeviceLocator, |
| dmi17->BankLocator, |
| strlen((const char *)dmi17->SerialNumber), |
| dmi17->SerialNumber, |
| strlen((const char *)dmi17->PartNumber), |
| dmi17->PartNumber); |
| } |
| |
| /** |
| * Marshalls dimm info from AMD_FSP_DMI_HOB into CBMEM_ID_MEMINFO |
| */ |
| static void prepare_dmi_17(void *unused) |
| { |
| const DMI_INFO *dmi_table; |
| const TYPE17_DMI_INFO *type17_dmi_info; |
| struct memory_info *mem_info; |
| struct dimm_info *dimm_info; |
| char cbi_part_number[DIMM_INFO_PART_NUMBER_SIZE]; |
| bool use_cbi_part_number = false; |
| size_t dimm_cnt = 0; |
| size_t amd_fsp_dmi_hob_size; |
| const EFI_GUID amd_fsp_dmi_hob_guid = AMD_FSP_DMI_HOB_GUID; |
| |
| printk(BIOS_DEBUG, "Saving dimm info for smbios type 17\n"); |
| |
| /* Allocate meminfo in cbmem. */ |
| mem_info = cbmem_add(CBMEM_ID_MEMINFO, sizeof(struct memory_info)); |
| if (!mem_info) { |
| printk(BIOS_ERR, |
| "Failed to add memory info to CBMEM, DMI tables will be incomplete\n"); |
| return; |
| } |
| memset(mem_info, 0, sizeof(struct memory_info)); |
| |
| /* Locate the memory info HOB. */ |
| dmi_table = fsp_find_extension_hob_by_guid( |
| (const uint8_t *)&amd_fsp_dmi_hob_guid, &amd_fsp_dmi_hob_size); |
| |
| if (dmi_table == NULL || amd_fsp_dmi_hob_size == 0) { |
| printk(BIOS_ERR, |
| "AMD_FSP_DMI_HOB not found, DMI table 17 will be incomplete\n"); |
| return; |
| } |
| printk(BIOS_DEBUG, "AMD_FSP_DMI_HOB found\n"); |
| |
| if (CONFIG(EC_GOOGLE_CHROMEEC)) { |
| /* Prefer DRAM part number from CBI. */ |
| if (google_chromeec_cbi_get_dram_part_num( |
| cbi_part_number, sizeof(cbi_part_number)) == 0) { |
| use_cbi_part_number = true; |
| } else { |
| printk(BIOS_ERR, "Could not obtain DRAM part number from CBI\n"); |
| } |
| } |
| |
| for (unsigned int channel = 0; channel < MAX_CHANNELS_PER_SOCKET; channel++) { |
| for (unsigned int dimm = 0; dimm < MAX_DIMMS_PER_CHANNEL; dimm++) { |
| type17_dmi_info = &dmi_table->T17[0][channel][dimm]; |
| /* DIMMs that are present will have a non-zero |
| handle. */ |
| if (type17_dmi_info->Handle == 0) |
| continue; |
| print_dmi_info(type17_dmi_info); |
| dimm_info = &mem_info->dimm[dimm_cnt]; |
| dimm_info->channel_num = channel; |
| dimm_info->dimm_num = channel; |
| transfer_memory_info(type17_dmi_info, dimm_info); |
| if (use_cbi_part_number) { |
| /* mem_info is memset to 0 above, so it's |
| safe to assume module_part_number will be |
| null terminated */ |
| strncpy((char *)dimm_info->module_part_number, cbi_part_number, |
| sizeof(dimm_info->module_part_number) - 1); |
| } |
| print_dimm_info(dimm_info); |
| dimm_cnt++; |
| } |
| } |
| mem_info->dimm_cnt = dimm_cnt; |
| } |
| |
| /* AMD_FSP_DMI_HOB is initialized very late, so check it just in time for writing tables. */ |
| BOOT_STATE_INIT_ENTRY(BS_WRITE_TABLES, BS_ON_ENTRY, prepare_dmi_17, NULL); |