diff options
Diffstat (limited to 'src/soc/intel/xeon_sp/dimm.c')
| -rw-r--r-- | src/soc/intel/xeon_sp/dimm.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/dimm.c b/src/soc/intel/xeon_sp/dimm.c new file mode 100644 index 0000000000..c02678a8ac --- /dev/null +++ b/src/soc/intel/xeon_sp/dimm.c @@ -0,0 +1,88 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include <console/console.h> +#include <smbios.h> +#include <soc/ddr.h> +#include <soc/intel/common/smbios.h> +#include <soc/romstage.h> +#include <soc/util.h> +#include <spd.h> + +void save_dimm_info(void) +{ + const struct SystemMemoryMapHob *hob = get_system_memory_map(); + assert(hob != NULL); + + /* + * Allocate CBMEM area for DIMM information used to populate SMBIOS + * table 17 + */ + struct memory_info *mem_info = cbmem_add(CBMEM_ID_MEMINFO, sizeof(*mem_info)); + if (mem_info == NULL) { + printk(BIOS_ERR, "CBMEM entry for DIMM info missing\n"); + return; + } + memset(mem_info, 0, sizeof(*mem_info)); + mem_info->max_capacity_mib = get_max_capacity_mib(); + mem_info->number_of_devices = CONFIG_DIMM_MAX; + mem_info->ecc_type = get_error_correction_type(hob->RasModesEnabled); + int dimm_max = ARRAY_SIZE(mem_info->dimm); + + uint32_t vdd_voltage = get_ddr_millivolt(hob->DdrVoltage); + + int slot_index = 0; + const int max_dimm_count = get_max_dimm_count(); + int dimm_num = 0; + for (int skt = 0; skt < CONFIG_MAX_SOCKET; skt++) { + for (int ch = 0; ch < MAX_CH; ch++) { + for (int dimm = 0; dimm < max_dimm_count; dimm++) { + if (slot_index >= dimm_max) { + printk(BIOS_WARNING, "Too many DIMMs info for %s.\n", + __func__); + return; + } + + struct dimm_info *dest_dimm; + MEMMAP_DIMM_DEVICE_INFO_STRUCT src_dimm = + hob->Socket[skt].ChannelInfo[ch].DimmInfo[dimm]; + + if (src_dimm.Present) { + dest_dimm = &mem_info->dimm[slot_index++]; + dest_dimm->dimm_size = (src_dimm.DimmSize << 6); + dest_dimm->soc_num = skt; + dest_dimm->channel_num = ch; + dest_dimm->dimm_num = dimm; + } else if (mainboard_dimm_slot_exists(skt, ch, dimm)) { + dest_dimm = &mem_info->dimm[slot_index++]; + dest_dimm->dimm_size = 0; + dest_dimm->soc_num = skt; + dest_dimm->channel_num = ch; + dest_dimm->dimm_num = dimm; + continue; + } else + continue; + + uint8_t mem_dev_type = get_dram_type(hob); + uint16_t data_width = 64; + + dimm_info_fill( + dest_dimm, src_dimm.DimmSize << 6, mem_dev_type, + hob->memFreq, /* replaced by configured_speed_mts */ + src_dimm.NumRanks, + ch, /* for mainboard locator string override */ + dimm, /* for mainboard locator string override */ + (const char *)&src_dimm.PartNumber[0], + sizeof(src_dimm.PartNumber), + (const uint8_t *)&src_dimm.serialNumber[0], data_width, + vdd_voltage, true, /* hard-coded as ECC supported */ + src_dimm.VendorID, src_dimm.actKeyByte2, 0, + get_max_memory_speed(src_dimm.commonTck)); + + dimm_num++; + } + } + } + + mem_info->dimm_cnt = slot_index; /* Number of DIMM slots found */ + printk(BIOS_DEBUG, "%d slots and %d installed DIMMs found\n", slot_index, dimm_num); +} |