/* SPDX-License-Identifier: GPL-2.0-only */ #include <cbmem.h> #include <console/console.h> #include <string.h> #include <soc/hob_mem.h> #include <smbios.h> #include <memory_info.h> #include <soc/ramstage.h> /* Save the DIMM information for SMBIOS table 17 */ void soc_save_dimm_info(void) { int channel; const CHANNEL_INFO *channel_info; int dimm; const DIMM_INFO *dimm_info; int dimm_max; int index; struct memory_info *mem_info; const FSP_SMBIOS_MEMORY_INFO *memory_info_hob; /* Get the memory info HOB */ memory_info_hob = soc_get_fsp_smbios_memory_info_hob(); if (memory_info_hob == NULL) return; /* Display the data in the FSP_SMBIOS_MEMORY_INFO HOB */ if (CONFIG(DISPLAY_HOBS)) soc_display_fsp_smbios_memory_info_hob(memory_info_hob); /* * Allocate CBMEM area for DIMM information used to populate SMBIOS * table 17 */ mem_info = cbmem_add(CBMEM_ID_MEMINFO, sizeof(*mem_info)); printk(BIOS_DEBUG, "CBMEM entry for DIMM info: %p\n", mem_info); if (mem_info == NULL) return; memset(mem_info, 0, sizeof(*mem_info)); /* Describe the first N DIMMs in the system */ index = 0; dimm_max = ARRAY_SIZE(mem_info->dimm); for (channel = 0; channel < memory_info_hob->ChannelCount; channel++) { if (index >= dimm_max) break; channel_info = &memory_info_hob->ChannelInfo[channel]; for (dimm = 0; dimm < channel_info->DimmCount; dimm++) { if (index >= dimm_max) break; dimm_info = &channel_info->DimmInfo[dimm]; /* Populate the DIMM information */ if (!dimm_info->SizeInMb) continue; mem_info->dimm[index].dimm_size = dimm_info->SizeInMb; mem_info->dimm[index].ddr_type = memory_info_hob->MemoryType; mem_info->dimm[index].ddr_frequency = memory_info_hob->MemoryFrequencyInMHz; mem_info->dimm[index].channel_num = channel_info->ChannelId; mem_info->dimm[index].dimm_num = dimm_info->DimmId; strncpy((char *) mem_info->dimm[index].module_part_number, (char *)dimm_info->ModulePartNum, 18); mem_info->dimm[index].mod_id = dimm_info->MfgId; switch (memory_info_hob->DataWidth) { default: case 8: mem_info->dimm[index].bus_width = MEMORY_BUS_WIDTH_8; break; case 16: mem_info->dimm[index].bus_width = MEMORY_BUS_WIDTH_16; break; case 32: mem_info->dimm[index].bus_width = MEMORY_BUS_WIDTH_32; break; case 64: mem_info->dimm[index].bus_width = MEMORY_BUS_WIDTH_64; break; case 128: mem_info->dimm[index].bus_width = MEMORY_BUS_WIDTH_128; break; } /* Add any mainboard specific information */ mainboard_add_dimm_info(mem_info, channel, dimm, index); index++; } } mem_info->dimm_cnt = index; printk(BIOS_DEBUG, "%d DIMMs found\n", mem_info->dimm_cnt); } /* Add any mainboard specific information */ __weak void mainboard_add_dimm_info(struct memory_info *mem_info, int channel, int dimm, int index) { printk(BIOS_DEBUG, "WEAK: %s/%s called\n", __FILE__, __func__); }