/* * This file and its contents are supplied under the terms of the * Common Development and Distribution License ("CDDL"), version 1.0. * You may only use this file in accordance with the terms of version * 1.0 of the CDDL. * * A full copy of the text of the CDDL should have accompanied this * source. A copy of the CDDL is also available via the Internet at * http://www.illumos.org/license/CDDL. */ /* * Copyright 2023 Oxide Computer Company */ /* * DDR5-specific SPD processing logic. For an overview of the processing design * please see libjedec_spd.c. Note, this currently does not handle NVDIMMs. */ #include #include #include "libjedec_spd.h" static const spd_value_map_t spd_ddr5_nbytes_total_map[] = { { SPD_DDR5_NBYTES_TOTAL_UNDEF, 0, true }, { SPD_DDR5_NBYTES_TOTAL_256, 256, false }, { SPD_DDR5_NBYTES_TOTAL_512, 512, false }, { SPD_DDR5_NBYTES_TOTAL_1024, 1024, false }, { SPD_DDR5_NBYTES_TOTAL_2048, 2048, false } }; static void spd_parse_ddr5_nbytes(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t total = SPD_DDR5_NBYTES_TOTAL(data); uint8_t beta = SPD_DDR5_NBYTES_BETA(data); beta = bitset8(beta, 4, 4, SPD_DDR5_NBYTES_BETAHI(data)); spd_nvl_insert_u32(si, SPD_KEY_BETA, beta); spd_insert_map(si, SPD_KEY_NBYTES_TOTAL, total, spd_ddr5_nbytes_total_map, ARRAY_SIZE(spd_ddr5_nbytes_total_map)); } static const spd_value_map_t spd_ddr5_mod_type_map[] = { { SPD_DDR5_MOD_TYPE_TYPE_RDIMM, SPD_MOD_TYPE_RDIMM, false }, { SPD_DDR5_MOD_TYPE_TYPE_UDIMM, SPD_MOD_TYPE_UDIMM, false }, { SPD_DDR5_MOD_TYPE_TYPE_SODIMM, SPD_MOD_TYPE_SODIMM, false }, { SPD_DDR5_MOD_TYPE_TYPE_LRDIMM, SPD_MOD_TYPE_LRDIMM, false }, { SPD_DDR5_MOD_TYPE_TYPE_MRDIMM, SPD_MOD_TYPE_MRDIMM, false }, { SPD_DDR5_MOD_TYPE_TYPE_DDIMM, SPD_MOD_TYPE_DDIMM, false }, { SPD_DDR5_MOD_TYPE_TYPE_SOLDER, SPD_MOD_TYPE_SOLDER, false } }; static const spd_value_map_t spd_ddr5_mod_is_hybrid_map[] = { { 0, SPD_MOD_NOT_HYBRID, false }, { 1, SPD_MOD_HYBRID_NVDIMMM, false } }; static const spd_value_map_t spd_ddr5_mod_hybrid_map[] = { { SPD_DDR5_MOD_TYPE_HYBRID_NVDIMM_N, SPD_MOD_TYPE_NVDIMM_N, false }, { SPD_DDR5_MOD_TYPE_HYBRID_NVDIMM_P, SPD_MOD_TYPE_NVDIMM_P, false } }; static void spd_parse_ddr5_mod_type(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t type = SPD_DDR5_MOD_TYPE_TYPE(data); const uint8_t is_hyb = SPD_DDR5_MOD_TYPE_ISHYBRID(data); const uint8_t hybrid = SPD_DDR5_MOD_TYPE_HYBRID(data); spd_insert_map(si, SPD_KEY_MOD_HYBRID_TYPE, is_hyb, spd_ddr5_mod_is_hybrid_map, ARRAY_SIZE(spd_ddr5_mod_is_hybrid_map)); if (is_hyb != 0) { spd_insert_map(si, SPD_KEY_MOD_NVDIMM_TYPE, hybrid, spd_ddr5_mod_hybrid_map, ARRAY_SIZE(spd_ddr5_mod_hybrid_map)); } spd_insert_map(si, SPD_KEY_MOD_TYPE, type, spd_ddr5_mod_type_map, ARRAY_SIZE(spd_ddr5_mod_type_map)); } static bool spd_parse_ddr5_isassym(spd_info_t *si) { ASSERT3U(si->si_size, >, SPD_DDR5_COM_ORG); const uint8_t data = si->si_data[SPD_DDR5_COM_ORG]; const uint8_t is_asym = SPD_DDR5_COM_ORG_MIX(data); return (is_asym == SPD_DDR5_COM_ORG_MIX_ASYM); } static const spd_value_map64_t spd_ddr5_density_map[] = { { SPD_DDR5_DENPKG_DPD_4Gb, 4ULL * 1024ULL * 1024ULL * 1024ULL, false }, { SPD_DDR5_DENPKG_DPD_8Gb, 8ULL * 1024ULL * 1024ULL * 1024ULL, false }, { SPD_DDR5_DENPKG_DPD_12Gb, 12ULL * 1024ULL * 1024ULL * 1024ULL, false }, { SPD_DDR5_DENPKG_DPD_16Gb, 16ULL * 1024ULL * 1024ULL * 1024ULL, false }, { SPD_DDR5_DENPKG_DPD_24Gb, 24ULL * 1024ULL * 1024ULL * 1024ULL, false }, { SPD_DDR5_DENPKG_DPD_32Gb, 32ULL * 1024ULL * 1024ULL * 1024ULL, false }, { SPD_DDR5_DENPKG_DPD_48Gb, 48ULL * 1024ULL * 1024ULL * 1024ULL, false }, { SPD_DDR5_DENPKG_DPD_64Gb, 64ULL * 1024ULL * 1024ULL * 1024ULL, false }, }; static const spd_value_map_t spd_ddr5_ndies_map[] = { { SPD_DDR5_DENPKG_DPP_MONO, 1, false }, { SPD_DDR5_DENPKG_DPP_DDP, 2, false }, { SPD_DDR5_DENPKG_DPP_2H3DS, 2, false }, { SPD_DDR5_DENPKG_DPP_4H3DS, 4, false }, { SPD_DDR5_DENPKG_DPP_8H3DS, 8, false }, { SPD_DDR5_DENPKG_DPP_16H3DS, 16, false }, }; static const spd_value_map_t spd_ddr5_sl_map[] = { { SPD_DDR5_DENPKG_DPP_MONO, SPD_SL_UNSPECIFIED, false }, { SPD_DDR5_DENPKG_DPP_DDP, SPD_SL_UNSPECIFIED, false }, { SPD_DDR5_DENPKG_DPP_2H3DS, SPD_SL_3DS, false }, { SPD_DDR5_DENPKG_DPP_4H3DS, SPD_SL_3DS, false }, { SPD_DDR5_DENPKG_DPP_8H3DS, SPD_SL_3DS, false }, { SPD_DDR5_DENPKG_DPP_16H3DS, SPD_SL_3DS, false }, }; static void spd_parse_ddr5_denpkg(spd_info_t *si, uint8_t data, const char *ndie_key, const char *den_key, const char *sl_key) { const uint8_t ndie = SPD_DDR5_DENPKG_DPP(data); const uint8_t dens = SPD_DDR5_DENPKG_DPD(data); spd_insert_map(si, ndie_key, ndie, spd_ddr5_ndies_map, ARRAY_SIZE(spd_ddr5_ndies_map)); spd_insert_map(si, sl_key, ndie, spd_ddr5_sl_map, ARRAY_SIZE(spd_ddr5_sl_map)); spd_insert_map64(si, den_key, dens, spd_ddr5_density_map, ARRAY_SIZE(spd_ddr5_density_map)); } static void spd_parse_ddr5_denpkg_pri(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { spd_parse_ddr5_denpkg(si, si->si_data[off], SPD_KEY_PKG_NDIE, SPD_KEY_DIE_SIZE, SPD_KEY_PKG_SL); } static void spd_parse_ddr5_denpkg_sec(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { if (!spd_parse_ddr5_isassym(si)) return; spd_parse_ddr5_denpkg(si, si->si_data[off], SPD_KEY_SEC_PKG_NDIE, SPD_KEY_SEC_DIE_SIZE, SPD_KEY_SEC_PKG_SL); } static const spd_value_range_t spd_ddr5_nrow_range = { .svr_max = SPD_DDR5_ADDR_NROWS_MAX, .svr_base = SPD_DDR5_ADDR_NROWS_BASE }; static const spd_value_range_t spd_ddr5_ncol_range = { .svr_max = SPD_DDR5_ADDR_NCOLS_MAX, .svr_base = SPD_DDR5_ADDR_NCOLS_BASE }; static void spd_parse_ddr5_addr(spd_info_t *si, uint8_t data, const char *row_key, const char *col_key) { const uint8_t ncols = SPD_DDR5_ADDR_NCOLS(data); const uint8_t nrows = SPD_DDR5_ADDR_NROWS(data); spd_insert_range(si, col_key, ncols, &spd_ddr5_ncol_range); spd_insert_range(si, row_key, nrows, &spd_ddr5_nrow_range); } static void spd_parse_ddr5_addr_pri(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { spd_parse_ddr5_addr(si, si->si_data[off], SPD_KEY_NROW_BITS, SPD_KEY_NCOL_BITS); } static void spd_parse_ddr5_addr_sec(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { if (!spd_parse_ddr5_isassym(si)) return; spd_parse_ddr5_addr(si, si->si_data[off], SPD_KEY_SEC_NROW_BITS, SPD_KEY_SEC_NCOL_BITS); } static const spd_value_map_t spd_ddr5_width_map[] = { { SPD_DDR5_WIDTH_X4, 4, false }, { SPD_DDR5_WIDTH_X8, 8, false }, { SPD_DDR5_WIDTH_X16, 16, false }, { SPD_DDR5_WIDTH_X32, 32, false } }; static void spd_parse_ddr5_width(spd_info_t *si, uint8_t data, const char *key) { const uint8_t width = SPD_DDR5_WIDTH_WIDTH(data); spd_insert_map(si, key, width, spd_ddr5_width_map, ARRAY_SIZE(spd_ddr5_width_map)); } static void spd_parse_ddr5_width_pri(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { spd_parse_ddr5_width(si, si->si_data[off], SPD_KEY_DRAM_WIDTH); } static void spd_parse_ddr5_width_sec(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { if (!spd_parse_ddr5_isassym(si)) return; spd_parse_ddr5_width(si, si->si_data[off], SPD_KEY_SEC_DRAM_WIDTH); } static const spd_value_range_t spd_ddr5_nbg_range = { .svr_max = SPD_DDR5_BANKS_NBG_MAX }; static const spd_value_range_t spd_ddr5_nba_range = { .svr_max = SPD_DDR5_BANKS_NBA_MAX }; static void spd_parse_ddr5_banks(spd_info_t *si, uint8_t data, const char *bg_key, const char *ba_key) { const uint8_t nbg = 1 << SPD_DDR5_BANKS_NBG(data); const uint8_t nba = 1 << SPD_DDR5_BANKS_NBA(data); spd_insert_range(si, bg_key, nbg, &spd_ddr5_nbg_range); spd_insert_range(si, ba_key, nba, &spd_ddr5_nba_range); } static void spd_parse_ddr5_banks_pri(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { spd_parse_ddr5_banks(si, si->si_data[off], SPD_KEY_NBGRP_BITS, SPD_KEY_NBANK_BITS); } static void spd_parse_ddr5_banks_sec(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { if (!spd_parse_ddr5_isassym(si)) return; spd_parse_ddr5_banks(si, si->si_data[off], SPD_KEY_SEC_NBGRP_BITS, SPD_KEY_SEC_NBANK_BITS); } static void spd_parse_ddr5_ppr(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; spd_ppr_flags_t flags = SPD_PPR_F_HARD_PPR | SPD_PPR_F_SOFT_PPR; if (SPD_DDR5_PPR_GRAN(data) == SPD_DDR5_PPR_GRAN_BGRP) { spd_nvl_insert_u32(si, SPD_KEY_PPR_GRAN, SPD_PPR_GRAN_BANK_GROUP); } else { spd_nvl_insert_u32(si, SPD_KEY_PPR_GRAN, SPD_PPR_GRAN_BANK); } if (SPD_DDR5_PPR_LOCK_SUP(data) != 0) flags |= SPD_PPR_F_PPR_UNDO; if (SPD_DDR5_PPR_MPPR_SUP(data) != 0) flags |= SPD_PPR_F_MBIST_PPR; spd_nvl_insert_u32(si, SPD_KEY_PPR, flags); if (SPD_DDR5_PPR_BL32_SUP(data) != 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_BL32); } static const spd_value_map_t spd_ddr5_dca_map[] = { { SPD_DDR5_SPD_DCA_TYPE_UNSUP, SPD_DCA_UNSPPORTED, false }, { SPD_DDR5_SPD_DCA_TYPE_1_2P, SPD_DCA_1_OR_2_PHASE, false }, { SPD_DDR5_SPD_DCA_TYPE_4P, SPD_DCA_4_PHASE, false } }; static void spd_parse_ddr5_dca(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t dca = SPD_DDR5_SPD_DCA_TYPE(data); if (SPD_DDR5_SPD_DCA_PASR(data) != 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_PASR); spd_insert_map(si, SPD_KEY_DDR5_DCA, dca, spd_ddr5_dca_map, ARRAY_SIZE(spd_ddr5_dca_map)); } static void spd_parse_ddr5_flt(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; spd_fault_t flt = 0; if (SPD_DDR5_FLT_WIDE_TS(data) != 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_WIDE_TS); if (SPD_DDR5_FLT_WBSUPR_SUP(data) != 0) { if (SPD_DDR5_FLT_WBSUPR_SEL(data) == SPD_DDR5_FLT_WBSUPR_SEL_MR15) { flt |= SPD_FLT_WRSUP_MR15; } else { flt |= SPD_FLT_WRSUP_MR9; } } if (SPD_DDR5_FLT_BFLT(data)) flt |= SPD_FLT_BOUNDED; spd_nvl_insert_u32(si, SPD_KEY_DDR5_WIDE_TS, flt); } /* * Voltages support describing the nominal, operational, and endurant ranges. * Currently we only encode the nominal values. */ static void spd_parse_ddr5_voltage(spd_info_t *si, uint8_t data, const char *key, uint32_t *mv, uint32_t nmv) { const uint8_t nom_idx = SPD_DDR5_DRAM_VOLT_NOM(data); if (nom_idx >= nmv) { spd_nvl_err(si, key, SPD_ERROR_NO_XLATE, "encountered unknown value: 0x%x", nom_idx); } else { spd_nvl_insert_u32_array(si, key, &mv[nom_idx], 1); } } static void spd_parse_ddr5_vdd(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { uint32_t volts[] = { 1100 }; return (spd_parse_ddr5_voltage(si, si->si_data[off], key, volts, ARRAY_SIZE(volts))); } static void spd_parse_ddr5_vddq(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { uint32_t volts[] = { 1100 }; return (spd_parse_ddr5_voltage(si, si->si_data[off], key, volts, ARRAY_SIZE(volts))); } static void spd_parse_ddr5_vpp(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { uint32_t volts[] = { 1800 }; return (spd_parse_ddr5_voltage(si, si->si_data[off], key, volts, ARRAY_SIZE(volts))); } static void spd_parse_ddr5_time(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; if (SPD_DDR5_TIME_STD(data) == SPD_DDR5_TIME_STD_NON) spd_nvl_insert_key(si, SPD_KEY_DDR5_NONSTD_TIME); } /* * Time in picoseconds. The LSB is at off. The MSB is at off + 1. */ static void spd_parse_ddr5_ps(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { uint64_t ps; ASSERT3U(len, ==, 2); ps = (uint64_t)si->si_data[off] << 8; ps |= (uint64_t)si->si_data[off + 1]; if (ps == 0) { spd_nvl_err(si, key, SPD_ERROR_NO_XLATE, "encountered unexpected zero time value"); return; } spd_nvl_insert_u64(si, key, ps); } /* * Time in nanoseconds. The LSB is at off. The MSB is at off + 1. We normalize * all times to ps. */ static void spd_parse_ddr5_ns(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { uint64_t ns, ps; ASSERT3U(len, ==, 2); ns = (uint64_t)si->si_data[off] << 8; ns |= (uint64_t)si->si_data[off + 1]; if (ns == 0) { spd_nvl_err(si, key, SPD_ERROR_NO_XLATE, "encountered unexpected zero time value"); return; } ps = ns * 1000; spd_nvl_insert_u64(si, key, ps); } /* * Several DDR5 timing properties are only valid for 3DS type DIMMs. So we * double check the actual DIMM type before we proceed to parse this. */ static void spd_parse_ddr5_3ds_ns(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(off, >=, SPD_DDR5_DENPKG1); uint32_t val; if (nvlist_lookup_uint32(si->si_nvl, SPD_KEY_PKG_SL, &val) != 0 || val != SPD_SL_3DS) { return; } spd_parse_ddr5_ns(si, off, len, key); } static void spd_parse_ddr5_nck(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; if (data == 0) { spd_nvl_err(si, key, SPD_ERROR_NO_XLATE, "encountered unexpected zero clock value"); return; } spd_nvl_insert_u32(si, key, data); } static void spd_parse_ddr5_cas(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { uint32_t cas[40] = { 0 }; uint_t ncas = 0; uint32_t cas_base = 20; ASSERT3U(len, ==, 5); for (uint32_t byte = 0; byte < len; byte++) { uint32_t data = si->si_data[off]; for (uint32_t i = 0; i < NBBY; i++) { if (bitx8(data, i, i) == 1) { cas[ncas] = cas_base + 2 * (i + NBBY * byte); ncas++; } } } spd_nvl_insert_u32_array(si, key, cas, ncas); } static const spd_value_range_t spd_ddr5_raammt_norm_range = { .svr_min = SPD_DDR5_RFM0_RAAMMT_NORM_MIN, .svr_max = SPD_DDR5_RFM0_RAAMMT_NORM_MAX, .svr_mult = SPD_DDR5_RFM0_RAAMMT_NORM_MULT }; static const spd_value_range_t spd_ddr5_raammt_fgr_range = { .svr_min = SPD_DDR5_RFM0_RAAMMT_FGR_MIN, .svr_max = SPD_DDR5_RFM0_RAAMMT_FGR_MAX, .svr_mult = SPD_DDR5_RFM0_RAAMMT_FGR_MULT }; static const spd_value_range_t spd_ddr5_raaimt_norm_range = { .svr_min = SPD_DDR5_RFM0_RAAIMT_NORM_MIN, .svr_max = SPD_DDR5_RFM0_RAAIMT_NORM_MAX, .svr_mult = SPD_DDR5_RFM0_RAAIMT_NORM_MULT }; static const spd_value_range_t spd_ddr5_raaimt_fgr_range = { .svr_min = SPD_DDR5_RFM0_RAAIMT_FGR_MIN, .svr_max = SPD_DDR5_RFM0_RAAIMT_FGR_MAX, .svr_mult = SPD_DDR5_RFM0_RAAIMT_FGR_MULT }; static const spd_value_range_t spd_ddr5_brc_cfg_range = { .svr_max = SPD_DDR5_RFM1_BRC_CFG_MAX, .svr_base = SPD_DDR5_RFM1_BRC_CFG_BASE }; static const spd_value_map_t spd_ddr5_raa_ctr_map[] = { { SPD_DDR5_RFM1_CTR_1X, 1, false }, { SPD_DDR5_RFM1_CTR_2X, 2, false } }; static void spd_parse_ddr5_rfm_flags(spd_info_t *si, uint8_t rfm0, uint8_t rfm1, const char *key) { spd_rfm_flags_t flags = 0; if (SPD_DDR5_RFM0_RFM_REQ(rfm0) != 0) flags |= SPD_RFM_F_REQUIRED; if (SPD_DDR5_RFM1_DRFM_SUP(rfm1) != 0) flags |= SPD_RFM_F_DRFM_SUP; spd_nvl_insert_u32(si, key, flags); } static void spd_parse_ddr5_arfm_flags(spd_info_t *si, uint8_t rfm1, const char *key) { spd_rfm_flags_t flags = 0; if (SPD_DDR5_RFM1_DRFM_SUP(rfm1) != 0) flags |= SPD_RFM_F_DRFM_SUP; spd_nvl_insert_u32(si, key, flags); } static void spd_parse_ddr5_rfm_common(spd_info_t *si, uint8_t rfm0, uint8_t rfm1, const char *raaimt_key, const char *raaimt_fgr_key, const char *raammt_key, const char *raammt_fgr_key, const char *brc_cfg_key, const char *brc_sup_key, const char *raa_ctr_key) { const uint8_t raammt = SPD_DDR5_RFM0_RAAMMT_NORM(rfm0); const uint8_t raammt_fgr = SPD_DDR5_RFM0_RAAMMT_FGR(rfm0); const uint8_t raaimt = SPD_DDR5_RFM0_RAAIMT_NORM(rfm0); const uint8_t raaimt_fgr = SPD_DDR5_RFM0_RAAIMT_FGR(rfm0); const uint8_t brc_cfg = SPD_DDR5_RFM1_BRC_CFG(rfm1); const uint8_t brc_sup = SPD_DDR5_RFM1_BRC_SUP(rfm1); const uint8_t raa_ctr = SPD_DDR5_RFM1_CTR(rfm1); spd_brc_flags_t brc_flags = SPD_BRC_F_LVL_2; if (brc_sup == SPD_DDR5_RFM1_BRC_SUP_234) brc_flags |= SPD_BRC_F_LVL_3 | SPD_BRC_F_LVL_4; spd_insert_range(si, raaimt_key, raaimt, &spd_ddr5_raaimt_norm_range); spd_insert_range(si, raaimt_fgr_key, raaimt_fgr, &spd_ddr5_raaimt_fgr_range); spd_insert_range(si, raammt_key, raammt, &spd_ddr5_raammt_norm_range); spd_insert_range(si, raammt_fgr_key, raammt_fgr, &spd_ddr5_raammt_fgr_range); spd_insert_range(si, brc_cfg_key, brc_cfg, &spd_ddr5_brc_cfg_range); spd_nvl_insert_u32(si, brc_sup_key, brc_flags); spd_insert_map(si, raa_ctr_key, raa_ctr, spd_ddr5_raa_ctr_map, ARRAY_SIZE(spd_ddr5_raa_ctr_map)); } static void spd_parse_ddr5_rfm_pri(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 2); spd_parse_ddr5_rfm_flags(si, si->si_data[off], si->si_data[off + 1], SPD_KEY_DDR5_RFM_FLAGS_PRI); spd_parse_ddr5_rfm_common(si, si->si_data[off], si->si_data[off + 1], SPD_KEY_DDR5_RFM_RAAIMT_PRI, SPD_KEY_DDR5_RFM_RAAIMT_FGR_PRI, SPD_KEY_DDR5_RFM_RAAMMT_PRI, SPD_KEY_DDR5_RFM_RAAMMT_FGR_PRI, SPD_KEY_DDR5_RFM_BRC_CFG_PRI, SPD_KEY_DDR5_RFM_BRC_SUP_PRI, SPD_KEY_DDR5_RFM_RAA_DEC_PRI); } static void spd_parse_ddr5_rfm_sec(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { if (!spd_parse_ddr5_isassym(si)) return; spd_parse_ddr5_rfm_flags(si, si->si_data[off], si->si_data[off + 1], SPD_KEY_DDR5_RFM_FLAGS_SEC); spd_parse_ddr5_rfm_common(si, si->si_data[off], si->si_data[off + 1], SPD_KEY_DDR5_RFM_RAAIMT_SEC, SPD_KEY_DDR5_RFM_RAAIMT_FGR_SEC, SPD_KEY_DDR5_RFM_RAAMMT_SEC, SPD_KEY_DDR5_RFM_RAAMMT_FGR_SEC, SPD_KEY_DDR5_RFM_BRC_CFG_SEC, SPD_KEY_DDR5_RFM_BRC_SUP_SEC, SPD_KEY_DDR5_RFM_RAA_DEC_SEC); } static void spd_parse_ddr5_arfma_pri(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 2); if (SPD_DDR5_ARFM_SUP(si->si_data[off]) == 0) return; spd_parse_ddr5_arfm_flags(si, si->si_data[off + 1], SPD_KEY_DDR5_ARFMA_FLAGS_PRI); spd_parse_ddr5_rfm_common(si, si->si_data[off], si->si_data[off + 1], SPD_KEY_DDR5_ARFMA_RAAIMT_PRI, SPD_KEY_DDR5_ARFMA_RAAIMT_FGR_PRI, SPD_KEY_DDR5_ARFMA_RAAMMT_PRI, SPD_KEY_DDR5_ARFMA_RAAMMT_FGR_PRI, SPD_KEY_DDR5_ARFMA_BRC_CFG_PRI, SPD_KEY_DDR5_ARFMA_BRC_SUP_PRI, SPD_KEY_DDR5_ARFMA_RAA_DEC_PRI); } static void spd_parse_ddr5_arfma_sec(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { if (!spd_parse_ddr5_isassym(si)) return; if (SPD_DDR5_ARFM_SUP(si->si_data[off]) == 0) return; spd_parse_ddr5_arfm_flags(si, si->si_data[off + 1], SPD_KEY_DDR5_ARFMA_FLAGS_SEC); spd_parse_ddr5_rfm_common(si, si->si_data[off], si->si_data[off + 1], SPD_KEY_DDR5_ARFMA_RAAIMT_SEC, SPD_KEY_DDR5_ARFMA_RAAIMT_FGR_SEC, SPD_KEY_DDR5_ARFMA_RAAMMT_SEC, SPD_KEY_DDR5_ARFMA_RAAMMT_FGR_SEC, SPD_KEY_DDR5_ARFMA_BRC_CFG_SEC, SPD_KEY_DDR5_ARFMA_BRC_SUP_SEC, SPD_KEY_DDR5_ARFMA_RAA_DEC_SEC); } static void spd_parse_ddr5_arfmb_pri(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 2); if (SPD_DDR5_ARFM_SUP(si->si_data[off]) == 0) return; spd_parse_ddr5_arfm_flags(si, si->si_data[off + 1], SPD_KEY_DDR5_ARFMB_FLAGS_PRI); spd_parse_ddr5_rfm_common(si, si->si_data[off], si->si_data[off + 1], SPD_KEY_DDR5_ARFMB_RAAIMT_PRI, SPD_KEY_DDR5_ARFMB_RAAIMT_FGR_PRI, SPD_KEY_DDR5_ARFMB_RAAMMT_PRI, SPD_KEY_DDR5_ARFMB_RAAMMT_FGR_PRI, SPD_KEY_DDR5_ARFMB_BRC_CFG_PRI, SPD_KEY_DDR5_ARFMB_BRC_SUP_PRI, SPD_KEY_DDR5_ARFMB_RAA_DEC_PRI); } static void spd_parse_ddr5_arfmb_sec(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { if (!spd_parse_ddr5_isassym(si)) return; if (SPD_DDR5_ARFM_SUP(si->si_data[off]) == 0) return; spd_parse_ddr5_arfm_flags(si, si->si_data[off + 1], SPD_KEY_DDR5_ARFMB_FLAGS_SEC); spd_parse_ddr5_rfm_common(si, si->si_data[off], si->si_data[off + 1], SPD_KEY_DDR5_ARFMB_RAAIMT_SEC, SPD_KEY_DDR5_ARFMB_RAAIMT_FGR_SEC, SPD_KEY_DDR5_ARFMB_RAAMMT_SEC, SPD_KEY_DDR5_ARFMB_RAAMMT_FGR_SEC, SPD_KEY_DDR5_ARFMB_BRC_CFG_SEC, SPD_KEY_DDR5_ARFMB_BRC_SUP_SEC, SPD_KEY_DDR5_ARFMB_RAA_DEC_SEC); } static void spd_parse_ddr5_arfmc_pri(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 2); if (SPD_DDR5_ARFM_SUP(si->si_data[off]) == 0) return; spd_parse_ddr5_arfm_flags(si, si->si_data[off + 1], SPD_KEY_DDR5_ARFMC_FLAGS_PRI); spd_parse_ddr5_rfm_common(si, si->si_data[off], si->si_data[off + 1], SPD_KEY_DDR5_ARFMC_RAAIMT_PRI, SPD_KEY_DDR5_ARFMC_RAAIMT_FGR_PRI, SPD_KEY_DDR5_ARFMC_RAAMMT_PRI, SPD_KEY_DDR5_ARFMC_RAAMMT_FGR_PRI, SPD_KEY_DDR5_ARFMC_BRC_CFG_PRI, SPD_KEY_DDR5_ARFMC_BRC_SUP_PRI, SPD_KEY_DDR5_ARFMC_RAA_DEC_PRI); } static void spd_parse_ddr5_arfmc_sec(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { if (!spd_parse_ddr5_isassym(si)) return; if (SPD_DDR5_ARFM_SUP(si->si_data[off]) == 0) return; spd_parse_ddr5_arfm_flags(si, si->si_data[off + 1], SPD_KEY_DDR5_ARFMC_FLAGS_SEC); spd_parse_ddr5_rfm_common(si, si->si_data[off], si->si_data[off + 1], SPD_KEY_DDR5_ARFMC_RAAIMT_SEC, SPD_KEY_DDR5_ARFMC_RAAIMT_FGR_SEC, SPD_KEY_DDR5_ARFMC_RAAMMT_SEC, SPD_KEY_DDR5_ARFMC_RAAMMT_FGR_SEC, SPD_KEY_DDR5_ARFMC_BRC_CFG_SEC, SPD_KEY_DDR5_ARFMC_BRC_SUP_SEC, SPD_KEY_DDR5_ARFMC_RAA_DEC_SEC); } static const spd_parse_t spd_ddr5_base[] = { { .sp_off = SPD_DDR5_NBYTES, .sp_parse = spd_parse_ddr5_nbytes }, { .sp_off = SPD_DDR5_SPD_REV, .sp_parse = spd_parse_rev }, /* * We have previously validated that the DRAM type is something that we * understand. We pass through the raw enum to users here. */ { .sp_off = SPD_DDR5_DRAM_TYPE, .sp_key = SPD_KEY_DRAM_TYPE, .sp_parse = spd_parse_raw_u8 }, { .sp_off = SPD_DDR5_MOD_TYPE, .sp_parse = spd_parse_ddr5_mod_type }, /* * All secondary values must check whether an asymmetrical module is * present in Byte 234. As such, for the secondary versions we set LEN * to include that value. They then move to a common function. */ { .sp_off = SPD_DDR5_DENPKG1, .sp_parse = spd_parse_ddr5_denpkg_pri }, { .sp_off = SPD_DDR5_DENPKG2, .sp_parse = spd_parse_ddr5_denpkg_sec, .sp_len = SPD_DDR5_COM_ORG - SPD_DDR5_DENPKG2 + 1 }, { .sp_off = SPD_DDR5_ADDR1, .sp_parse = spd_parse_ddr5_addr_pri }, { .sp_off = SPD_DDR5_ADDR2, .sp_parse = spd_parse_ddr5_addr_sec, .sp_len = SPD_DDR5_COM_ORG - SPD_DDR5_ADDR2 + 1 }, { .sp_off = SPD_DDR5_WIDTH1, .sp_parse = spd_parse_ddr5_width_pri }, { .sp_off = SPD_DDR5_WIDTH2, .sp_parse = spd_parse_ddr5_width_sec, .sp_len = SPD_DDR5_COM_ORG - SPD_DDR5_WIDTH2 + 1 }, { .sp_off = SPD_DDR5_BANKS1, .sp_parse = spd_parse_ddr5_banks_pri }, { .sp_off = SPD_DDR5_BANKS2, .sp_parse = spd_parse_ddr5_banks_sec, .sp_len = SPD_DDR5_COM_ORG - SPD_DDR5_BANKS2 + 1 }, { .sp_off = SPD_DDR5_PPR, .sp_parse = spd_parse_ddr5_ppr }, { .sp_off = SPD_DDR5_SDA, .sp_parse = spd_parse_ddr5_dca }, { .sp_off = SPD_DDR5_FLT, .sp_parse = spd_parse_ddr5_flt }, { .sp_off = SPD_DDR5_DRAM_VDD, .sp_key = SPD_KEY_NOM_VDD, .sp_parse = spd_parse_ddr5_vdd }, { .sp_off = SPD_DDR5_DRAM_VDDQ, .sp_key = SPD_KEY_NOM_VDDQ, .sp_parse = spd_parse_ddr5_vddq }, { .sp_off = SPD_DDR5_DRAM_VPP, .sp_key = SPD_KEY_NOM_VPP, .sp_parse = spd_parse_ddr5_vpp }, { .sp_off = SPD_DDR5_TIME, .sp_parse = spd_parse_ddr5_time }, { .sp_off = SPD_DDR5_TCKAVG_MIN_LSB, .sp_len = 2, .sp_key = SPD_KEY_TCKAVG_MIN, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TCKAVG_MAX_LSB, .sp_len = 2, .sp_key = SPD_KEY_TCKAVG_MAX, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_CAS_SUP0, .sp_len = 5, .sp_key = SPD_KEY_CAS, .sp_parse = spd_parse_ddr5_cas }, { .sp_off = SPD_DDR5_TAA_LSB, .sp_len = 2, .sp_key = SPD_KEY_TAA_MIN, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TRCD_LSB, .sp_len = 2, .sp_key = SPD_KEY_TRCD_MIN, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TRP_LSB, .sp_len = 2, .sp_key = SPD_KEY_TRP_MIN, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TRAS_LSB, .sp_len = 2, .sp_key = SPD_KEY_TRAS_MIN, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TRC_LSB, .sp_len = 2, .sp_key = SPD_KEY_TRC_MIN, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TWR_LSB, .sp_len = 2, .sp_key = SPD_KEY_TWR_MIN, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TRFC1_LSB, .sp_len = 2, .sp_key = SPD_KEY_TRFC1_MIN, .sp_parse = spd_parse_ddr5_ns }, { .sp_off = SPD_DDR5_TRFC2_LSB, .sp_len = 2, .sp_key = SPD_KEY_TRFC2_MIN, .sp_parse = spd_parse_ddr5_ns }, { .sp_off = SPD_DDR5_TRFCSB_LSB, .sp_len = 2, .sp_key = SPD_KEY_TRFCSB, .sp_parse = spd_parse_ddr5_ns }, { .sp_off = SPD_DDR5_3DS_TRFC1_LSB, .sp_len = 2, .sp_key = SPD_KEY_TRFC1_DLR, .sp_parse = spd_parse_ddr5_3ds_ns }, { .sp_off = SPD_DDR5_3DS_TRFC2_LSB, .sp_len = 2, .sp_key = SPD_KEY_TRFC2_DLR, .sp_parse = spd_parse_ddr5_3ds_ns }, { .sp_off = SPD_DDR5_3DS_TRFCSB_LSB, .sp_len = 2, .sp_key = SPD_KEY_TRFCSB_DLR, .sp_parse = spd_parse_ddr5_3ds_ns }, { .sp_off = SPD_DDR5_RFM0_SDRAM0, .sp_len = 2, .sp_parse = spd_parse_ddr5_rfm_pri }, { .sp_off = SPD_DDR5_RFM0_SDRAM1, .sp_parse = spd_parse_ddr5_rfm_sec, .sp_len = SPD_DDR5_COM_ORG - SPD_DDR5_RFM0_SDRAM1 + 1 }, { .sp_off = SPD_DDR5_ARFM0_A_SDRAM0, .sp_len = 2, .sp_parse = spd_parse_ddr5_arfma_pri }, { .sp_off = SPD_DDR5_ARFM0_A_SDRAM1, .sp_len = SPD_DDR5_COM_ORG - SPD_DDR5_ARFM0_A_SDRAM1 + 1, .sp_parse = spd_parse_ddr5_arfma_sec }, { .sp_off = SPD_DDR5_ARFM0_B_SDRAM0, .sp_len = 2, .sp_parse = spd_parse_ddr5_arfmb_pri }, { .sp_off = SPD_DDR5_ARFM0_B_SDRAM1, .sp_len = SPD_DDR5_COM_ORG - SPD_DDR5_ARFM0_B_SDRAM1 + 1, .sp_parse = spd_parse_ddr5_arfmb_sec }, { .sp_off = SPD_DDR5_ARFM0_C_SDRAM0, .sp_len = 2, .sp_parse = spd_parse_ddr5_arfmc_pri }, { .sp_off = SPD_DDR5_ARFM0_C_SDRAM1, .sp_len = SPD_DDR5_COM_ORG - SPD_DDR5_ARFM0_C_SDRAM1 + 1, .sp_parse = spd_parse_ddr5_arfmc_sec }, { .sp_off = SPD_DDR5_TRRD_L_LSB, .sp_len = 2, .sp_key = SPD_KEY_TRRD_L_MIN, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TRRD_L_NCK, .sp_key = SPD_KEY_TRRDL_NCK, .sp_parse = spd_parse_ddr5_nck }, { .sp_off = SPD_DDR5_TCCD_L_LSB, .sp_len = 2, .sp_key = SPD_KEY_TCCD_L_MIN, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TCCD_L_NCK, .sp_key = SPD_KEY_TCCDL_NCK, .sp_parse = spd_parse_ddr5_nck }, { .sp_off = SPD_DDR5_TCCD_L_WR_LSB, .sp_len = 2, .sp_key = SPD_KEY_TCCDLWR, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TCCD_L_WR_NCK, .sp_key = SPD_KEY_TCCDLWR_NCK, .sp_parse = spd_parse_ddr5_nck }, { .sp_off = SPD_DDR5_TCCD_L_WR2_LSB, .sp_len = 2, .sp_key = SPD_KEY_TCCDLWR2, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TCCD_L_WR2_NCK, .sp_key = SPD_KEY_TCCDLWR2_NCK, .sp_parse = spd_parse_ddr5_nck }, { .sp_off = SPD_DDR5_TFAW_LSB, .sp_len = 2, .sp_key = SPD_KEY_TFAW, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TFAW_NCK, .sp_key = SPD_KEY_TFAW_NCK, .sp_parse = spd_parse_ddr5_nck }, { .sp_off = SPD_DDR5_TCCD_L_WTR_LSB, .sp_len = 2, .sp_key = SPD_KEY_TCCDLWTR, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TCCD_L_WTR_NCK, .sp_key = SPD_KEY_TCCDLWTR_NCK, .sp_parse = spd_parse_ddr5_nck }, { .sp_off = SPD_DDR5_TCCD_S_WTR_LSB, .sp_len = 2, .sp_key = SPD_KEY_TCCDSWTR, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TCCD_S_WTR_NCK, .sp_key = SPD_KEY_TCCDSWTR_NCK, .sp_parse = spd_parse_ddr5_nck }, { .sp_off = SPD_DDR5_TRTP_LSB, .sp_len = 2, .sp_key = SPD_KEY_TRTP, .sp_parse = spd_parse_ddr5_ps }, { .sp_off = SPD_DDR5_TRTP_NCK, .sp_key = SPD_KEY_TRTP_NCK, .sp_parse = spd_parse_ddr5_nck } }; static void spd_parse_ddr5_mod_rev(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t enc = SPD_DDR5_SPD_REV_ENC(data); const uint8_t add = SPD_DDR5_SPD_REV_ENC(data); spd_nvl_insert_u32(si, SPD_KEY_MOD_REV_ENC, enc); spd_nvl_insert_u32(si, SPD_KEY_MOD_REV_ADD, add); } static const spd_value_map_t spd_ddr5_hash_map[] = { { SPD_DDR5_COM_HASH_NONE, 0, true }, { SPD_DDR5_COM_HASH_ALG1, SPD_HASH_SEQ_ALG_1, false } }; static void spd_parse_ddr5_hash_seq(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t alg = SPD_DDR5_COM_HASH_HASH(data); spd_insert_map(si, key, alg, spd_ddr5_hash_map, ARRAY_SIZE(spd_ddr5_hash_map)); } static void spd_parse_ddr5_dev_common(spd_info_t *si, uint32_t off, spd_device_t flags, const char *id_key, const char *id_str_key, const char *rev_key, const char *type_key, const spd_value_map_t *type_map, size_t ntypes) { const uint8_t type = SPD_DDR5_COM_INFO_TYPE(si->si_data[off + 2]); spd_parse_jedec_id(si, off, 2, id_key); spd_parse_jedec_id_str(si, off, 2, id_str_key); spd_parse_hex_vers(si, off + 3, 1, rev_key); spd_upsert_flag(si, SPD_KEY_DEVS, flags); spd_insert_map(si, type_key, type, type_map, ntypes); } static const spd_value_map_t spd_ddr5_spd_type_map[] = { { SPD_DDR5_COM_INFO_TYPE_SPD5118, SPD_SPD_T_SPD5118, false }, { SPD_DDR5_COM_INFO_TYPE_ESPD5216, SPD_SPD_T_ESPD5216, false } }; static void spd_parse_ddr5_spd(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 4); const uint8_t type = si->si_data[off + 2]; if (SPD_DDR5_COM_INFO_PRES(type) == 0) return; spd_parse_ddr5_dev_common(si, off, SPD_DEVICE_SPD, SPD_KEY_DEV_SPD_MFG, SPD_KEY_DEV_SPD_MFG_NAME, SPD_KEY_DEV_SPD_REV, SPD_KEY_DEV_SPD_TYPE, spd_ddr5_spd_type_map, ARRAY_SIZE(spd_ddr5_spd_type_map)); } static const spd_value_map_t spd_ddr5_pmic_type_map[] = { { SPD_DDR5_COM_INFO_TYPE_PMIC5000, SPD_PMIC_T_PMIC5000, false }, { SPD_DDR5_COM_INFO_TYPE_PMIC5010, SPD_PMIC_T_PMIC5010, false }, { SPD_DDR5_COM_INFO_TYPE_PMIC5100, SPD_PMIC_T_PMIC5100, false }, }; static void spd_parse_ddr5_pmic0(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 4); const uint8_t type = si->si_data[off + 2]; if (SPD_DDR5_COM_INFO_PRES(type) == 0) return; spd_parse_ddr5_dev_common(si, off, SPD_DEVICE_PMIC_0, SPD_KEY_DEV_PMIC0_MFG, SPD_KEY_DEV_PMIC0_MFG_NAME, SPD_KEY_DEV_PMIC0_REV, SPD_KEY_DEV_PMIC0_TYPE, spd_ddr5_pmic_type_map, ARRAY_SIZE(spd_ddr5_pmic_type_map)); } static void spd_parse_ddr5_pmic1(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 4); const uint8_t type = si->si_data[off + 2]; if (SPD_DDR5_COM_INFO_PRES(type) == 0) return; spd_parse_ddr5_dev_common(si, off, SPD_DEVICE_PMIC_1, SPD_KEY_DEV_PMIC1_MFG, SPD_KEY_DEV_PMIC1_MFG_NAME, SPD_KEY_DEV_PMIC1_REV, SPD_KEY_DEV_PMIC1_TYPE, spd_ddr5_pmic_type_map, ARRAY_SIZE(spd_ddr5_pmic_type_map)); } static void spd_parse_ddr5_pmic2(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 4); const uint8_t type = si->si_data[off + 2]; if (SPD_DDR5_COM_INFO_PRES(type) == 0) return; spd_parse_ddr5_dev_common(si, off, SPD_DEVICE_PMIC_2, SPD_KEY_DEV_PMIC2_MFG, SPD_KEY_DEV_PMIC2_MFG_NAME, SPD_KEY_DEV_PMIC2_REV, SPD_KEY_DEV_PMIC2_TYPE, spd_ddr5_pmic_type_map, ARRAY_SIZE(spd_ddr5_pmic_type_map)); } static const spd_value_map_t spd_ddr5_temp_type_map[] = { { SPD_DDR5_COM_INFO_TYPE_TS5111, SPD_TEMP_T_TS5111, false }, { SPD_DDR5_COM_INFO_TYPE_TS5110, SPD_TEMP_T_TS5110, false } }; static void spd_parse_ddr5_ts(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 4); const uint8_t type = si->si_data[off + 2]; spd_device_t flags = 0; if (SPD_DDR5_COM_INFO_PRES(type) != 0) flags |= SPD_DEVICE_TEMP_1; if (SPD_DDR5_COM_INFO_TS1_PRES(type) != 0) flags |= SPD_DEVICE_TEMP_2; if (flags == 0) return; spd_parse_ddr5_dev_common(si, off, flags, SPD_KEY_DEV_TEMP_MFG, SPD_KEY_DEV_TEMP_MFG_NAME, SPD_KEY_DEV_TEMP_REV, SPD_KEY_DEV_TEMP_TYPE, spd_ddr5_temp_type_map, ARRAY_SIZE(spd_ddr5_temp_type_map)); } static const spd_str_map_t spd_ddr5_design_map[] = { { 0, "A", false }, { 1, "B", false }, { 2, "C", false }, { 3, "D", false }, { 4, "E", false }, { 5, "F", false }, { 6, "G", false }, { 7, "H", false }, { 8, "J", false }, { 9, "K", false }, { 10, "L", false }, { 11, "M", false }, { 12, "N", false }, { 13, "P", false }, { 14, "R", false }, { 15, "T", false }, { 16, "U", false }, { 17, "V", false }, { 18, "W", false }, { 19, "Y", false }, { 20, "AA", false }, { 21, "AB", false }, { 22, "AC", false }, { 23, "AD", false }, { 24, "AE", false }, { 25, "AF", false }, { 26, "AG", false }, { 27, "AH", false }, { 28, "AJ", false }, { 29, "AK", false }, { 31, "ZZ", false } }; static const spd_value_range_t spd_ddr5_design_rev_range = { .svr_max = SPD_DDR5_COM_REF_REV_MAX }; static void spd_parse_ddr5_design(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t rev = SPD_DDR5_COM_REF_REV(data); const uint8_t card = SPD_DDR5_COM_REF_REV(data); spd_insert_str_map(si, SPD_KEY_MOD_REF_DESIGN, card, spd_ddr5_design_map, ARRAY_SIZE(spd_ddr5_design_map)); spd_insert_range(si, SPD_KEY_MOD_DESIGN_REV, rev, &spd_ddr5_design_rev_range); } static const spd_value_map_t spd_ddr5_attr_nrows_map[] = { { SPD_DDR5_COM_ATTR_NROWS_UNDEF, 0, true }, { SPD_DDR5_COM_ATTR_NROWS_1, 1, false }, { SPD_DDR5_COM_ATTR_NROWS_2, 2, false } }; static const spd_value_map_t spd_ddr5_attr_otr_map[] = { { SPD_DDR5_COM_ATTR_OTR_A1T, JEDEC_TEMP_CASE_A1T, false }, { SPD_DDR5_COM_ATTR_OTR_A2T, JEDEC_TEMP_CASE_A2T, false }, { SPD_DDR5_COM_ATTR_OTR_A3T, JEDEC_TEMP_CASE_A3T, false }, { SPD_DDR5_COM_ATTR_OTR_IT, JEDEC_TEMP_CASE_IT, false }, { SPD_DDR5_COM_ATTR_OTR_ST, JEDEC_TEMP_CASE_ST, false }, { SPD_DDR5_COM_ATTR_OTR_ET, JEDEC_TEMP_CASE_ET, false }, { SPD_DDR5_COM_ATTR_OTR_RT, JEDEC_TEMP_CASE_RT, false }, { SPD_DDR5_COM_ATTR_OTR_NT, JEDEC_TEMP_CASE_NT, false }, { SPD_DDR5_COM_ATTR_OTR_XT, JEDEC_TEMP_CASE_XT, false } }; static void spd_parse_ddr5_attr(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t otr = SPD_DDR5_COM_ATTR_OTR(data); const uint8_t nrows = SPD_DDR5_COM_ATTR_NROWS(data); if (SPD_DDR5_COM_ATTR_SPREAD(data) != 0) spd_upsert_flag(si, SPD_KEY_DEVS, SPD_DEVICE_HS); spd_insert_map(si, SPD_KEY_MOD_NROWS, nrows, spd_ddr5_attr_nrows_map, ARRAY_SIZE(spd_ddr5_attr_nrows_map)); spd_insert_map(si, SPD_KEY_MOD_OPER_TEMP, otr, spd_ddr5_attr_otr_map, ARRAY_SIZE(spd_ddr5_attr_otr_map)); } static const spd_value_range_t spd_ddr5_nrank_range = { .svr_base = SPD_DDR5_COM_ORG_NRANK_BASE }; static void spd_parse_ddr5_mod_org(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t nranks = SPD_DDR4_MOD_ORG_NPKG_RANK(data); if (SPD_DDR5_COM_ORG_MIX(data) == SPD_DDR5_COM_ORG_MIX_ASYM) spd_nvl_insert_key(si, SPD_KEY_RANK_ASYM); spd_insert_range(si, SPD_KEY_NRANKS, nranks, &spd_ddr5_nrank_range); } static const spd_value_map_t spd_ddr5_ext_width[] = { { SPD_DDR5_COM_BUS_WIDTH_EXT_NONE, 0, false }, { SPD_DDR5_COM_BUS_WIDTH_EXT_4b, 4, false }, { SPD_DDR5_COM_BUS_WIDTH_EXT_8b, 8, false } }; static const spd_value_map_t spd_ddr5_pri_width[] = { { SPD_DDR5_COM_BUS_WIDTH_PRI_8b, 8, false }, { SPD_DDR5_COM_BUS_WIDTH_PRI_16b, 16, false }, { SPD_DDR5_COM_BUS_WIDTH_PRI_32b, 32, false }, { SPD_DDR5_COM_BUS_WIDTH_PRI_64b, 64, false }, }; static const spd_value_range_t spd_ddr5_nsc_range = { .svr_max = SPD_DDR5_COM_BUS_WIDTH_NSC_MAX, .svr_base = SPD_DDR5_COM_BUS_WIDTH_NSC_BASE }; static void spd_parse_ddr5_bus_width(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t nsc = SPD_DDR5_COM_BUS_WIDTH_NSC(data); const uint8_t ext = SPD_DDR5_COM_BUS_WIDTH_EXT(data); const uint8_t pri = SPD_DDR5_COM_BUS_WIDTH_PRI(data); spd_insert_range(si, SPD_KEY_NSUBCHAN, nsc, &spd_ddr5_nsc_range); spd_insert_map(si, SPD_KEY_ECC_WIDTH, ext, spd_ddr5_ext_width, ARRAY_SIZE(spd_ddr5_ext_width)); spd_insert_map(si, SPD_KEY_DATA_WIDTH, pri, spd_ddr5_pri_width, ARRAY_SIZE(spd_ddr5_pri_width)); } static const spd_parse_t spd_ddr5_module[] = { { .sp_off = SPD_DDR5_COM_REV, .sp_parse = spd_parse_ddr5_mod_rev }, { .sp_off = SPD_DDR5_COM_HASH, .sp_parse = spd_parse_ddr5_hash_seq, .sp_key = SPD_KEY_HASH_SEQ }, { .sp_off = SPD_DDR5_COM_MFG_ID0_SPD, .sp_len = 4, .sp_parse = spd_parse_ddr5_spd }, { .sp_off = SPD_DDR5_COM_MFG_ID0_PMIC0, .sp_len = 4, .sp_parse = spd_parse_ddr5_pmic0 }, { .sp_off = SPD_DDR5_COM_MFG_ID0_PMIC1, .sp_len = 4, .sp_parse = spd_parse_ddr5_pmic1 }, { .sp_off = SPD_DDR5_COM_MFG_ID0_PMIC2, .sp_len = 4, .sp_parse = spd_parse_ddr5_pmic2 }, { .sp_off = SPD_DDR5_COM_MFG_ID0_TS, .sp_len = 4, .sp_parse = spd_parse_ddr5_ts }, { .sp_off = SPD_DDR5_COM_HEIGHT, .sp_key = SPD_KEY_MOD_HEIGHT, .sp_parse = spd_parse_height }, { .sp_off = SPD_DDR5_COM_THICK, .sp_parse = spd_parse_thickness }, { .sp_off = SPD_DDR5_COM_REF, .sp_parse = spd_parse_ddr5_design }, { .sp_off = SPD_DDR5_COM_ATTR, .sp_parse = spd_parse_ddr5_attr }, { .sp_off = SPD_DDR5_COM_ORG, .sp_parse = spd_parse_ddr5_mod_org }, { .sp_off = SPD_DDR5_COM_BUS_WIDTH, .sp_parse = spd_parse_ddr5_bus_width }, /* We include the DDR5 CRC in this group as it's considered common */ { .sp_len = SPD_DDR5_CRC_MSB + 1, .sp_key = SPD_KEY_CRC_DDR5, .sp_parse = spd_parse_crc }, }; static const spd_parse_t spd_ddr5_mfg[] = { { .sp_off = SPD_DDR5_MOD_MFG_ID0, .sp_len = 2, .sp_key = SPD_KEY_MFG_MOD_MFG_ID, .sp_parse = spd_parse_jedec_id }, { .sp_off = SPD_DDR5_MOD_MFG_ID0, .sp_len = 2, .sp_key = SPD_KEY_MFG_MOD_MFG_NAME, .sp_parse = spd_parse_jedec_id_str }, { .sp_off = SPD_DDR5_DRAM_MFG_ID0, .sp_len = 2, .sp_key = SPD_KEY_MFG_DRAM_MFG_ID, .sp_parse = spd_parse_jedec_id }, { .sp_off = SPD_DDR5_DRAM_MFG_ID0, .sp_len = 2, .sp_key = SPD_KEY_MFG_DRAM_MFG_NAME, .sp_parse = spd_parse_jedec_id_str }, { .sp_off = SPD_DDR5_MOD_MFG_LOC, .sp_key = SPD_KEY_MFG_MOD_LOC_ID, .sp_parse = spd_parse_raw_u8 }, { .sp_off = SPD_DDR5_MOD_MFG_YEAR, .sp_key = SPD_KEY_MFG_MOD_YEAR, .sp_parse = spd_parse_hex_string }, { .sp_off = SPD_DDR5_MOD_MFG_WEEK, .sp_key = SPD_KEY_MFG_MOD_WEEK, .sp_parse = spd_parse_hex_string }, { .sp_off = SPD_DDR5_MOD_SN, .sp_len = SPD_DDR5_MOD_SN_LEN, .sp_key = SPD_KEY_MFG_MOD_SN, .sp_parse = spd_parse_hex_string }, { .sp_off = SPD_DDR5_MOD_PN, .sp_len = SPD_DDR5_MOD_PN_LEN, .sp_key = SPD_KEY_MFG_MOD_PN, .sp_parse = spd_parse_string }, { .sp_off = SPD_DDR5_MOD_REV, .sp_key = SPD_KEY_MFG_MOD_REV, .sp_parse = spd_parse_dram_step }, { .sp_off = SPD_DDR5_DRAM_STEP, .sp_key = SPD_KEY_MFG_DRAM_STEP, .sp_parse = spd_parse_dram_step } }; /* * Annex A.2 UDIMM and SODIMM specific processing. */ static const spd_value_map_t spd_ddr5_cd_type_map[] = { { SPD_DDR5_UDIMM_INFO_TYPE_DDR5CK01, SPD_CD_T_DDR5CK01, false } }; static void spd_parse_ddr5_udimm_cd(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 4); const uint8_t type = si->si_data[off + 2]; if (SPD_DDR5_COM_INFO_PRES(type) == 0) return; spd_parse_ddr5_dev_common(si, off, SPD_DEVICE_CD, SPD_KEY_DEV_CD_MFG, SPD_KEY_DEV_CD_MFG_NAME, SPD_KEY_DEV_CD_REV, SPD_KEY_DEV_CD_TYPE, spd_ddr5_cd_type_map, ARRAY_SIZE(spd_ddr5_cd_type_map)); } static const spd_parse_t spd_ddr5_udimm[] = { { .sp_off = SPD_DDR5_COM_MFG_ID0_TS, .sp_len = 4, .sp_parse = spd_parse_ddr5_udimm_cd } }; /* * Annex A.3 RDIMM and LRDIMM specific processing. Because certain fields are * LRDIMM-only, we use two different top-level tables to drive them; however, * they generally overlap otherwise. Items that are LRDIMM only will contain * lrdimm in the name. All items named rdimm are shared between both the LRDIMM * and RDIMM processing. */ static const spd_value_map_t spd_ddr5_rcd_type_map[] = { { SPD_DDR5_RDIMM_INFO_TYPE_RCD01, SPD_RCD_T_DDR5RCD01, false }, { SPD_DDR5_RDIMM_INFO_TYPE_RCD02, SPD_RCD_T_DDR5RCD02, false }, { SPD_DDR5_RDIMM_INFO_TYPE_RCD03, SPD_RCD_T_DDR5RCD03, false } }; static const spd_value_map_t spd_ddr5_db_type_map[] = { { SPD_DDR5_RDIMM_INFO_TYPE_DB01, SPD_DB_T_DDR5DB01, false }, { SPD_DDR5_RDIMM_INFO_TYPE_DB02, SPD_DB_T_DDR5DB02, false } }; static void spd_parse_ddr5_rdimm_rcd(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 4); const uint8_t type = si->si_data[off + 2]; if (SPD_DDR5_COM_INFO_PRES(type) == 0) return; spd_parse_ddr5_dev_common(si, off, SPD_DEVICE_RCD, SPD_KEY_DEV_RCD_MFG, SPD_KEY_DEV_RCD_MFG_NAME, SPD_KEY_DEV_RCD_REV, SPD_KEY_DEV_RCD_TYPE, spd_ddr5_rcd_type_map, ARRAY_SIZE(spd_ddr5_rcd_type_map)); } static void spd_parse_ddr5_lrdimm_db(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 4); const uint8_t type = si->si_data[off + 2]; if (SPD_DDR5_COM_INFO_PRES(type) == 0) return; spd_parse_ddr5_dev_common(si, off, SPD_DEVICE_DB, SPD_KEY_DEV_DB_MFG, SPD_KEY_DEV_DB_MFG_NAME, SPD_KEY_DEV_DB_REV, SPD_KEY_DEV_DB_TYPE, spd_ddr5_db_type_map, ARRAY_SIZE(spd_ddr5_db_type_map)); } static void spd_parse_ddr5_rdimm_clken(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; if (SPD_DDR5_RDIMM_CLKEN_QACK(data) == 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_RCD_QACK_EN); if (SPD_DDR5_RDIMM_CLKEN_QBCK(data) == 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_RCD_QBCK_EN); if (SPD_DDR5_RDIMM_CLKEN_QCCK(data) == 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_RCD_QCCK_EN); if (SPD_DDR5_RDIMM_CLKEN_QDCK(data) == 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_RCD_QDCK_EN); if (SPD_DDR5_RDIMM_CLKEN_BCK(data) == 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_RCD_BCK_EN); } static void spd_parse_ddr5_rdimm_rwen(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; if (SPD_DDR5_RDIMM_RW09_QBCS(data) == 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_RCD_QBCS_EN); if (SPD_DDR5_RDIMM_RW09_QACS(data) == 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_RCD_QACS_EN); if (SPD_DDR5_RDIMM_RW09_QXCA13(data) == 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_RCD_QxCA13_EN); if (SPD_DDR5_RDIMM_RW09_BCS(data) == 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_RCD_BCS_EN); if (SPD_DDR5_RDIMM_RW09_DCS(data) == 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_RCD_DCS1_EN); if (SPD_DDR5_RDIMM_RW09_QBCA(data) == 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_RCD_QBCA_EN); if (SPD_DDR5_RDIMM_RW09_QACA(data) == 0) spd_nvl_insert_key(si, SPD_KEY_DDR5_RCD_QACA_EN); } static const spd_value_map_t spd_ddr5_imp_map[] = { { SPD_DDR5_RDIMM_DRV_20R, 20, false }, { SPD_DDR5_RDIMM_DRV_14R, 14, false }, { SPD_DDR5_RDIMM_DRV_10R, 10, false } }; static void spd_parse_ddr5_rdimm_clkimp(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t qack = SPD_DDR5_RDIMM_QCK_DRV_QACK(data); const uint8_t qbck = SPD_DDR5_RDIMM_QCK_DRV_QBCK(data); const uint8_t qcck = SPD_DDR5_RDIMM_QCK_DRV_QCCK(data); const uint8_t qdck = SPD_DDR5_RDIMM_QCK_DRV_QDCK(data); spd_insert_map(si, SPD_KEY_DDR5_RCD_QACK_IMP, qack, spd_ddr5_imp_map, ARRAY_SIZE(spd_ddr5_imp_map)); spd_insert_map(si, SPD_KEY_DDR5_RCD_QBCK_IMP, qbck, spd_ddr5_imp_map, ARRAY_SIZE(spd_ddr5_imp_map)); spd_insert_map(si, SPD_KEY_DDR5_RCD_QCCK_IMP, qcck, spd_ddr5_imp_map, ARRAY_SIZE(spd_ddr5_imp_map)); spd_insert_map(si, SPD_KEY_DDR5_RCD_QDCK_IMP, qdck, spd_ddr5_imp_map, ARRAY_SIZE(spd_ddr5_imp_map)); } static void spd_parse_ddr5_rdimm_casimp(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t cs = SPD_DDR5_RDIMM_QCA_DRV_CS(data); const uint8_t ca = SPD_DDR5_RDIMM_QCA_DRV_CA(data); spd_insert_map(si, SPD_KEY_DDR5_RCD_CS_IMP, cs, spd_ddr5_imp_map, ARRAY_SIZE(spd_ddr5_imp_map)); spd_insert_map(si, SPD_KEY_DDR5_RCD_CA_IMP, ca, spd_ddr5_imp_map, ARRAY_SIZE(spd_ddr5_imp_map)); } /* * Unlike the other impedence values the BCOM signal does not allow a 10 Ohm * value. */ static const spd_value_map_t spd_ddr5_bcom_map[] = { { SPD_DDR5_RDIMM_DRV_20R, 20, false }, { SPD_DDR5_RDIMM_DRV_14R, 14, false } }; static void spd_parse_ddr5_lrdimm_dbimp(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t bck = SPD_DDR5_LRDIMM_DB_DRV_BCK(data); const uint8_t bcom = SPD_DDR5_LRDIMM_DB_DRV_BCOM(data); spd_insert_map(si, SPD_KEY_DDR5_RCD_BCK_IMP, bck, spd_ddr5_imp_map, ARRAY_SIZE(spd_ddr5_imp_map)); spd_insert_map(si, SPD_KEY_DDR5_RCD_BCOM_IMP, bcom, spd_ddr5_bcom_map, ARRAY_SIZE(spd_ddr5_bcom_map)); } /* * Some slew rates only allow moderate and fast, others also allow slow. We use * different definitions to capture the allowed sets. */ static const spd_value_map_t spd_ddr5_mfslew_map[] = { { SPD_DDR5_RDIMM_SLEW_MODERTE, SPD_SLEW_MODERATE, false }, { SPD_DDR5_RDIMM_SLEW_FAST, SPD_SLEW_FAST, false } }; static const spd_value_map_t spd_ddr5_smfslew_map[] = { { SPD_DDR5_RDIMM_SLEW_MODERTE, SPD_SLEW_MODERATE, false }, { SPD_DDR5_RDIMM_SLEW_FAST, SPD_SLEW_FAST, false }, { SPD_DDR5_RDIMM_SLEW_SLOW, SPD_SLEW_SLOW, false } }; static void spd_parse_ddr5_rdimm_qslew(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t qcs = SPD_DDR5_RDIMM_QXX_SLEW_QCS(data); const uint8_t qca = SPD_DDR5_RDIMM_QXX_SLEW_QCA(data); const uint8_t qck = SPD_DDR5_RDIMM_QXX_SLEW_QCK(data); spd_insert_map(si, SPD_KEY_DDR5_RCD_QCK_SLEW, qck, spd_ddr5_mfslew_map, ARRAY_SIZE(spd_ddr5_mfslew_map)); spd_insert_map(si, SPD_KEY_DDR5_RCD_QCA_SLEW, qca, spd_ddr5_smfslew_map, ARRAY_SIZE(spd_ddr5_smfslew_map)); spd_insert_map(si, SPD_KEY_DDR5_RCD_QCS_SLEW, qcs, spd_ddr5_smfslew_map, ARRAY_SIZE(spd_ddr5_smfslew_map)); } static void spd_parse_ddr5_lrdimm_bslew(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t bck = SPD_DDR5_LRDIMM_BXX_SLEW_BCK(data); const uint8_t bcom = SPD_DDR5_LRDIMM_BXX_SLEW_BCOM(data); spd_insert_map(si, SPD_KEY_DDR5_RCD_BCK_SLEW, bck, spd_ddr5_mfslew_map, ARRAY_SIZE(spd_ddr5_mfslew_map)); spd_insert_map(si, SPD_KEY_DDR5_RCD_BCOM_SLEW, bcom, spd_ddr5_smfslew_map, ARRAY_SIZE(spd_ddr5_smfslew_map)); } static const spd_value_map_t spd_ddr5_rtt_term_map[] = { { SPD_DDR5_LDRIMM_PARK_OFF, 0, true }, { SPD_DDR5_LDRIMM_PARK_240R, 240, false }, { SPD_DDR5_LDRIMM_PARK_120R, 120, false }, { SPD_DDR5_LDRIMM_PARK_80R, 80, false }, { SPD_DDR5_LDRIMM_PARK_60R, 60, false }, { SPD_DDR5_LDRIMM_PARK_48R, 48, false }, { SPD_DDR5_LDRIMM_PARK_40R, 40, false }, { SPD_DDR5_LDRIMM_PARK_34R, 34, false } }; static void spd_parse_ddr5_lrdimm_rtt(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { const uint8_t data = si->si_data[off]; const uint8_t rtt = SPD_DDR5_LRDIMM_PARK_TERM(data); spd_insert_map(si, SPD_KEY_DDR5_RCD_RTT_TERM, rtt, spd_ddr5_rtt_term_map, ARRAY_SIZE(spd_ddr5_rtt_term_map)); } static const spd_parse_t spd_ddr5_rdimm[] = { { .sp_off = SPD_DDR5_RDIMM_MFG_ID0_RCD, .sp_len = 4, .sp_parse = spd_parse_ddr5_rdimm_rcd }, { .sp_off = SPD_DDR5_RDIMM_CLKEN, .sp_parse = spd_parse_ddr5_rdimm_clken }, { .sp_off = SPD_DDR5_RDIMM_RW09, .sp_parse = spd_parse_ddr5_rdimm_rwen }, { .sp_off = SPD_DDR5_RDIMM_QCK_DRV, .sp_parse = spd_parse_ddr5_rdimm_clkimp }, { .sp_off = SPD_DDR5_RDIMM_QCA_DRV, .sp_parse = spd_parse_ddr5_rdimm_casimp }, { .sp_off = SPD_DDR5_RDIMM_QXX_SLEW, .sp_parse = spd_parse_ddr5_rdimm_qslew } }; static const spd_parse_t spd_ddr5_lrdimm[] = { { .sp_off = SPD_DDR5_RDIMM_MFG_ID0_RCD, .sp_len = 4, .sp_parse = spd_parse_ddr5_rdimm_rcd }, { .sp_off = SPD_DDR5_RDIMM_MFG_ID0_DB, .sp_len = 4, .sp_parse = spd_parse_ddr5_lrdimm_db }, { .sp_off = SPD_DDR5_RDIMM_CLKEN, .sp_parse = spd_parse_ddr5_rdimm_clken }, { .sp_off = SPD_DDR5_RDIMM_RW09, .sp_parse = spd_parse_ddr5_rdimm_rwen }, { .sp_off = SPD_DDR5_RDIMM_QCK_DRV, .sp_parse = spd_parse_ddr5_rdimm_clkimp }, { .sp_off = SPD_DDR5_RDIMM_QCA_DRV, .sp_parse = spd_parse_ddr5_rdimm_casimp }, { .sp_off = SPD_DDR5_LRDIMM_DB_DRV, .sp_parse = spd_parse_ddr5_lrdimm_dbimp }, { .sp_off = SPD_DDR5_RDIMM_QXX_SLEW, .sp_parse = spd_parse_ddr5_rdimm_qslew }, { .sp_off = SPD_DDR5_LRDIMM_BXX_SLEW, .sp_parse = spd_parse_ddr5_lrdimm_bslew }, { .sp_off = SPD_DDR5_LRDIMM_PARK, .sp_parse = spd_parse_ddr5_lrdimm_rtt }, }; /* * Annex A.4 MRDIMM specific processing. */ static const spd_value_map_t spd_ddr5_mrcd_type_map[] = { { SPD_DDR5_MRDIMM_INFO_TYPE_MRCD01, SPD_MRCD_T_DDR5MRCD01, false } }; static const spd_value_map_t spd_ddr5_mdb_type_map[] = { { SPD_DDR5_MRDIMM_INFO_TYPE_MDB01, SPD_MDB_T_DDR5MDB01, false } }; static void spd_parse_ddr5_mrdimm_mrcd(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 4); const uint8_t type = si->si_data[off + 2]; if (SPD_DDR5_COM_INFO_PRES(type) == 0) return; spd_parse_ddr5_dev_common(si, off, SPD_DEVICE_MRCD, SPD_KEY_DEV_MRCD_MFG, SPD_KEY_DEV_MRCD_MFG_NAME, SPD_KEY_DEV_MRCD_REV, SPD_KEY_DEV_MRCD_TYPE, spd_ddr5_mrcd_type_map, ARRAY_SIZE(spd_ddr5_mrcd_type_map)); } static void spd_parse_ddr5_mrdimm_mdb(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 4); const uint8_t type = si->si_data[off + 2]; if (SPD_DDR5_COM_INFO_PRES(type) == 0) return; spd_parse_ddr5_dev_common(si, off, SPD_DEVICE_MDB, SPD_KEY_DEV_MDB_MFG, SPD_KEY_DEV_MDB_MFG_NAME, SPD_KEY_DEV_MDB_REV, SPD_KEY_DEV_MDB_TYPE, spd_ddr5_mdb_type_map, ARRAY_SIZE(spd_ddr5_mdb_type_map)); } static const spd_parse_t spd_ddr5_mrdimm[] = { { .sp_off = SPD_DDR5_MRDIMM_MFG_ID0_MRCD, .sp_len = 4, .sp_parse = spd_parse_ddr5_mrdimm_mrcd }, { .sp_off = SPD_DDR5_MRDIMM_MFG_ID0_MDB, .sp_len = 4, .sp_parse = spd_parse_ddr5_mrdimm_mdb } }; /* * Annex A.5 Differential Memory Module processing. */ static const spd_value_map_t spd_ddr5_dmb_type_map[] = { { SPD_DDR5_DDIMM_INFO_TYPE_DMB501, SPD_DMB_T_DMB5011, false } }; static void spd_parse_ddr5_ddimm_dmb(spd_info_t *si, uint32_t off, uint32_t len, const char *key) { ASSERT3U(len, ==, 4); const uint8_t type = si->si_data[off + 2]; if (SPD_DDR5_COM_INFO_PRES(type) == 0) return; spd_parse_ddr5_dev_common(si, off, SPD_DEVICE_DMB, SPD_KEY_DEV_DMB_MFG, SPD_KEY_DEV_DMB_MFG_NAME, SPD_KEY_DEV_DMB_REV, SPD_KEY_DEV_DMB_TYPE, spd_ddr5_dmb_type_map, ARRAY_SIZE(spd_ddr5_dmb_type_map)); } static const spd_parse_t spd_ddr5_ddimm[] = { { .sp_off = SPD_DDR5_DDIMM_MFG_ID0_DMB, .sp_len = 4, .sp_parse = spd_parse_ddr5_ddimm_dmb }, }; static void spd_parse_ddr5_mod_specific(spd_info_t *si) { uint32_t type; if (nvlist_lookup_uint32(si->si_nvl, SPD_KEY_MOD_TYPE, &type) != 0) return; switch (type) { case SPD_MOD_TYPE_RDIMM: spd_parse(si, spd_ddr5_rdimm, ARRAY_SIZE(spd_ddr5_rdimm)); break; case SPD_MOD_TYPE_LRDIMM: spd_parse(si, spd_ddr5_lrdimm, ARRAY_SIZE(spd_ddr5_lrdimm)); break; case SPD_MOD_TYPE_UDIMM: case SPD_MOD_TYPE_SODIMM: spd_parse(si, spd_ddr5_udimm, ARRAY_SIZE(spd_ddr5_udimm)); break; case SPD_MOD_TYPE_MRDIMM: spd_parse(si, spd_ddr5_mrdimm, ARRAY_SIZE(spd_ddr5_mrdimm)); break; case SPD_MOD_TYPE_DDIMM: spd_parse(si, spd_ddr5_ddimm, ARRAY_SIZE(spd_ddr5_ddimm)); break; /* * Soldered DIMMs don't have any data. */ case SPD_MOD_TYPE_SOLDER: default: break; } } /* * DDR5 has two different revisions. One that is present in the base region and * one that is present in the common module region that covers the * module-related pieces. We check that both are present and go from there. We * may want to relax this in the future so that it's easier to just decode a * subset of this, but for the time being, we require both. */ void spd_parse_ddr5(spd_info_t *si) { if (SPD_DDR5_SPD_REV_ENC(si->si_data[SPD_DDR5_SPD_REV]) != SPD_DDR5_SPD_REV_V1) { si->si_error = LIBJEDEC_SPD_UNSUP_REV; return; } if (si->si_nbytes <= SPD_DDR5_COM_REV) { si->si_error = LIBJEDEC_SPD_TOOSHORT; return; } if (SPD_DDR5_SPD_REV_ENC(si->si_data[SPD_DDR5_COM_REV]) != SPD_DDR5_SPD_REV_V1) { si->si_error = LIBJEDEC_SPD_UNSUP_REV; return; } spd_parse(si, spd_ddr5_base, ARRAY_SIZE(spd_ddr5_base)); spd_parse(si, spd_ddr5_module, ARRAY_SIZE(spd_ddr5_module)); spd_parse(si, spd_ddr5_mfg, ARRAY_SIZE(spd_ddr5_mfg)); spd_parse_ddr5_mod_specific(si); }