| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <assert.h> |
| #include <string.h> |
| #include <smbios.h> |
| #include <console/console.h> |
| #include <version.h> |
| #include <device/device.h> |
| #include <device/dram/spd.h> |
| #include <arch/cpu.h> |
| #include <cpu/x86/name.h> |
| #include <elog.h> |
| #include <endian.h> |
| #include <memory_info.h> |
| #include <spd.h> |
| #include <cbmem.h> |
| #include <commonlib/helpers.h> |
| #include <device/pci_ids.h> |
| #include <device/pci_def.h> |
| #include <device/pci.h> |
| #include <drivers/vpd/vpd.h> |
| #include <stdlib.h> |
| |
| #define update_max(len, max_len, stmt) \ |
| do { \ |
| int tmp = stmt; \ |
| \ |
| max_len = MAX(max_len, tmp); \ |
| len += tmp; \ |
| } while (0) |
| |
| static u8 smbios_checksum(u8 *p, u32 length) |
| { |
| u8 ret = 0; |
| while (length--) |
| ret += *p++; |
| return -ret; |
| } |
| |
| int smbios_add_string(u8 *start, const char *str) |
| { |
| int i = 1; |
| char *p = (char *)start; |
| |
| /* |
| * Return 0 as required for empty strings. |
| * See Section 6.1.3 "Text Strings" of the SMBIOS specification. |
| */ |
| if (*str == '\0') |
| return 0; |
| |
| for (;;) { |
| if (!*p) { |
| strcpy(p, str); |
| p += strlen(str); |
| *p++ = '\0'; |
| *p++ = '\0'; |
| return i; |
| } |
| |
| if (!strcmp(p, str)) |
| return i; |
| |
| p += strlen(p)+1; |
| i++; |
| } |
| } |
| |
| int smbios_string_table_len(u8 *start) |
| { |
| char *p = (char *)start; |
| int i, len = 0; |
| |
| while (*p) { |
| i = strlen(p) + 1; |
| p += i; |
| len += i; |
| } |
| |
| if (!len) |
| return 2; |
| |
| return len + 1; |
| } |
| |
| int smbios_full_table_len(struct smbios_header *header, u8 *str_table_start) |
| { |
| return header->length + smbios_string_table_len(str_table_start); |
| } |
| |
| void *smbios_carve_table(unsigned long start, u8 type, u8 length, u16 handle) |
| { |
| struct smbios_header *t = (struct smbios_header *)start; |
| |
| assert(length >= sizeof(*t)); |
| memset(t, 0, length); |
| t->type = type; |
| t->length = length - 2; |
| t->handle = handle; |
| return t; |
| } |
| |
| static int smbios_cpu_vendor(u8 *start) |
| { |
| if (cpu_have_cpuid()) { |
| u32 tmp[4]; |
| const struct cpuid_result res = cpuid(0); |
| tmp[0] = res.ebx; |
| tmp[1] = res.edx; |
| tmp[2] = res.ecx; |
| tmp[3] = 0; |
| return smbios_add_string(start, (const char *)tmp); |
| } else { |
| return smbios_add_string(start, "Unknown"); |
| } |
| } |
| |
| static int smbios_processor_name(u8 *start) |
| { |
| u32 tmp[13]; |
| const char *str = "Unknown Processor Name"; |
| if (cpu_have_cpuid()) { |
| int i; |
| struct cpuid_result res = cpuid(0x80000000); |
| if (res.eax >= 0x80000004) { |
| int j = 0; |
| for (i = 0; i < 3; i++) { |
| res = cpuid(0x80000002 + i); |
| tmp[j++] = res.eax; |
| tmp[j++] = res.ebx; |
| tmp[j++] = res.ecx; |
| tmp[j++] = res.edx; |
| } |
| tmp[12] = 0; |
| str = (const char *)tmp; |
| } |
| } |
| return smbios_add_string(start, str); |
| } |
| |
| /* this function will fill the corresponding manufacturer */ |
| void smbios_fill_dimm_manufacturer_from_id(uint16_t mod_id, struct smbios_type17 *t) |
| { |
| const char *const manufacturer = spd_manufacturer_name(mod_id); |
| |
| if (manufacturer) { |
| t->manufacturer = smbios_add_string(t->eos, manufacturer); |
| } else { |
| char string_buffer[256]; |
| |
| snprintf(string_buffer, sizeof(string_buffer), "Unknown (%x)", mod_id); |
| t->manufacturer = smbios_add_string(t->eos, string_buffer); |
| } |
| } |
| |
| static void trim_trailing_whitespace(char *buffer, size_t buffer_size) |
| { |
| size_t len = strnlen(buffer, buffer_size); |
| |
| if (len == 0) |
| return; |
| |
| for (char *p = buffer + len - 1; p >= buffer; --p) { |
| if (*p == ' ') |
| *p = 0; |
| else |
| break; |
| } |
| } |
| |
| /** This function will fill the corresponding part number */ |
| static void smbios_fill_dimm_part_number(const char *part_number, struct smbios_type17 *t) |
| { |
| int invalid; |
| size_t i, len; |
| char trimmed_part_number[DIMM_INFO_PART_NUMBER_SIZE]; |
| |
| strncpy(trimmed_part_number, part_number, sizeof(trimmed_part_number)); |
| trimmed_part_number[sizeof(trimmed_part_number) - 1] = '\0'; |
| |
| /* |
| * SPD mandates that unused characters be represented with a ' '. |
| * We don't want to publish the whitespace in the SMBIOS tables. |
| */ |
| trim_trailing_whitespace(trimmed_part_number, sizeof(trimmed_part_number)); |
| |
| len = strlen(trimmed_part_number); |
| |
| invalid = 0; /* assume valid */ |
| for (i = 0; i < len; i++) { |
| if (trimmed_part_number[i] < ' ') { |
| invalid = 1; |
| trimmed_part_number[i] = '*'; |
| } |
| } |
| |
| if (len == 0) { |
| /* Null String in Part Number will have "None" instead. */ |
| t->part_number = smbios_add_string(t->eos, "None"); |
| } else if (invalid) { |
| char string_buffer[sizeof(trimmed_part_number) + 10]; |
| |
| snprintf(string_buffer, sizeof(string_buffer), "Invalid (%s)", |
| trimmed_part_number); |
| t->part_number = smbios_add_string(t->eos, string_buffer); |
| } else { |
| t->part_number = smbios_add_string(t->eos, trimmed_part_number); |
| } |
| } |
| |
| /* Encodes the SPD serial number into hex */ |
| static void smbios_fill_dimm_serial_number(const struct dimm_info *dimm, |
| struct smbios_type17 *t) |
| { |
| char serial[9]; |
| |
| snprintf(serial, sizeof(serial), "%02hhx%02hhx%02hhx%02hhx", |
| dimm->serial[0], dimm->serial[1], dimm->serial[2], dimm->serial[3]); |
| |
| t->serial_number = smbios_add_string(t->eos, serial); |
| } |
| |
| static int create_smbios_type17_for_dimm(struct dimm_info *dimm, |
| unsigned long *current, int *handle, |
| int type16_handle) |
| { |
| struct spd_info info; |
| get_spd_info(dimm->ddr_type, dimm->mod_type, &info); |
| |
| struct smbios_type17 *t = smbios_carve_table(*current, SMBIOS_MEMORY_DEVICE, |
| sizeof(*t), *handle); |
| |
| t->memory_type = dimm->ddr_type; |
| if (dimm->configured_speed_mts != 0) |
| t->clock_speed = dimm->configured_speed_mts; |
| else |
| t->clock_speed = dimm->ddr_frequency; |
| if (dimm->max_speed_mts != 0) |
| t->speed = dimm->max_speed_mts; |
| else |
| t->speed = dimm->ddr_frequency; |
| if (dimm->dimm_size < 0x7fff) { |
| t->size = dimm->dimm_size; |
| } else { |
| t->size = 0x7fff; |
| t->extended_size = dimm->dimm_size & 0x7fffffff; |
| } |
| t->data_width = 8 * (1 << (dimm->bus_width & 0x7)); |
| t->total_width = t->data_width + 8 * ((dimm->bus_width & 0x18) >> 3); |
| t->form_factor = info.form_factor; |
| |
| smbios_fill_dimm_manufacturer_from_id(dimm->mod_id, t); |
| smbios_fill_dimm_serial_number(dimm, t); |
| smbios_fill_dimm_asset_tag(dimm, t); |
| smbios_fill_dimm_locator(dimm, t); |
| |
| /* put '\0' in the end of data */ |
| dimm->module_part_number[DIMM_INFO_PART_NUMBER_SIZE - 1] = '\0'; |
| smbios_fill_dimm_part_number((char *)dimm->module_part_number, t); |
| |
| /* Voltage Levels */ |
| t->configured_voltage = dimm->vdd_voltage; |
| t->minimum_voltage = dimm->vdd_voltage; |
| t->maximum_voltage = dimm->vdd_voltage; |
| |
| /* Fill in type detail */ |
| t->type_detail = info.type_detail; |
| |
| /* Synchronous = 1 */ |
| t->type_detail |= MEMORY_TYPE_DETAIL_SYNCHRONOUS; |
| /* no handle for error information */ |
| t->memory_error_information_handle = 0xFFFE; |
| t->attributes = dimm->rank_per_dimm; |
| t->phys_memory_array_handle = type16_handle; |
| |
| *handle += 1; |
| return smbios_full_table_len(&t->header, t->eos); |
| } |
| |
| static int create_smbios_type17_for_empty_slot(struct dimm_info *dimm, |
| unsigned long *current, int *handle, |
| int type16_handle) |
| { |
| struct smbios_type17 *t = smbios_carve_table(*current, SMBIOS_MEMORY_DEVICE, |
| sizeof(*t), *handle); |
| t->phys_memory_array_handle = type16_handle; |
| /* no handle for error information */ |
| t->memory_error_information_handle = 0xfffe; |
| t->total_width = 0xffff; /* Unknown */ |
| t->data_width = 0xffff; /* Unknown */ |
| t->form_factor = 0x2; /* Unknown */ |
| smbios_fill_dimm_locator(dimm, t); /* Device and Bank */ |
| t->memory_type = 0x2; /* Unknown */ |
| t->type_detail = 0x2; /* Unknown */ |
| |
| *handle += 1; |
| return smbios_full_table_len(&t->header, t->eos); |
| } |
| |
| #define VERSION_VPD "firmware_version" |
| static const char *vpd_get_bios_version(void) |
| { |
| int size; |
| const char *s; |
| char *version; |
| |
| s = vpd_find(VERSION_VPD, &size, VPD_RO); |
| if (!s) { |
| printk(BIOS_ERR, "Find version from VPD %s failed\n", VERSION_VPD); |
| return NULL; |
| } |
| |
| version = malloc(size + 1); |
| if (!version) { |
| printk(BIOS_ERR, "Failed to malloc %d bytes for VPD version\n", size + 1); |
| return NULL; |
| } |
| memcpy(version, s, size); |
| version[size] = '\0'; |
| printk(BIOS_DEBUG, "Firmware version %s from VPD %s\n", version, VERSION_VPD); |
| return version; |
| } |
| |
| static const char *get_bios_version(void) |
| { |
| const char *s; |
| |
| #define SPACES \ |
| " " |
| |
| if (CONFIG(CHROMEOS)) |
| return SPACES; |
| |
| if (CONFIG(VPD_SMBIOS_VERSION)) { |
| s = vpd_get_bios_version(); |
| if (s != NULL) |
| return s; |
| } |
| |
| s = smbios_mainboard_bios_version(); |
| if (s != NULL) |
| return s; |
| |
| if (strlen(CONFIG_LOCALVERSION) != 0) { |
| printk(BIOS_DEBUG, "BIOS version set to CONFIG_LOCALVERSION: '%s'\n", |
| CONFIG_LOCALVERSION); |
| return CONFIG_LOCALVERSION; |
| } |
| |
| printk(BIOS_DEBUG, "SMBIOS firmware version is set to coreboot_version: '%s'\n", |
| coreboot_version); |
| return coreboot_version; |
| } |
| |
| static int smbios_write_type0(unsigned long *current, int handle) |
| { |
| struct smbios_type0 *t = smbios_carve_table(*current, SMBIOS_BIOS_INFORMATION, |
| sizeof(*t), handle); |
| |
| t->vendor = smbios_add_string(t->eos, "coreboot"); |
| t->bios_release_date = smbios_add_string(t->eos, coreboot_dmi_date); |
| |
| if (CONFIG(CHROMEOS_NVS)) { |
| uintptr_t version_address = (uintptr_t)t->eos; |
| /* SMBIOS offsets start at 1 rather than 0 */ |
| version_address += (u32)smbios_string_table_len(t->eos) - 1; |
| smbios_type0_bios_version(version_address); |
| } |
| t->bios_version = smbios_add_string(t->eos, get_bios_version()); |
| uint32_t rom_size = CONFIG_ROM_SIZE; |
| rom_size = MIN(CONFIG_ROM_SIZE, 16 * MiB); |
| t->bios_rom_size = (rom_size / 65535) - 1; |
| |
| if (CONFIG_ROM_SIZE >= 1 * GiB) |
| t->extended_bios_rom_size = DIV_ROUND_UP(CONFIG_ROM_SIZE, GiB) | (1 << 14); |
| else |
| t->extended_bios_rom_size = DIV_ROUND_UP(CONFIG_ROM_SIZE, MiB); |
| |
| t->system_bios_major_release = coreboot_major_revision; |
| t->system_bios_minor_release = coreboot_minor_revision; |
| |
| smbios_ec_revision(&t->ec_major_release, &t->ec_minor_release); |
| |
| t->bios_characteristics = |
| BIOS_CHARACTERISTICS_PCI_SUPPORTED | |
| BIOS_CHARACTERISTICS_SELECTABLE_BOOT | |
| BIOS_CHARACTERISTICS_UPGRADEABLE; |
| |
| if (CONFIG(CARDBUS_PLUGIN_SUPPORT)) |
| t->bios_characteristics |= BIOS_CHARACTERISTICS_PC_CARD; |
| |
| if (CONFIG(HAVE_ACPI_TABLES)) |
| t->bios_characteristics_ext1 = BIOS_EXT1_CHARACTERISTICS_ACPI; |
| |
| t->bios_characteristics_ext2 = BIOS_EXT2_CHARACTERISTICS_TARGET; |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| return len; |
| } |
| |
| static int get_socket_type(void) |
| { |
| if (CONFIG(CPU_INTEL_SLOT_1)) |
| return PROCESSOR_UPGRADE_SLOT_1; |
| if (CONFIG(CPU_INTEL_SOCKET_MPGA604)) |
| return PROCESSOR_UPGRADE_SOCKET_MPGA604; |
| if (CONFIG(CPU_INTEL_SOCKET_LGA775)) |
| return PROCESSOR_UPGRADE_SOCKET_LGA775; |
| if (CONFIG(SOC_INTEL_ALDERLAKE)) |
| return PROCESSOR_UPGRADE_SOCKET_LGA1700; |
| if (CONFIG(SOC_INTEL_SKYLAKE_SP)) |
| return PROCESSOR_UPGRADE_SOCKET_LGA3647_1; |
| if (CONFIG(SOC_INTEL_COOPERLAKE_SP)) |
| return PROCESSOR_UPGRADE_SOCKET_LGA4189; |
| |
| return PROCESSOR_UPGRADE_UNKNOWN; |
| } |
| |
| unsigned int __weak smbios_processor_external_clock(void) |
| { |
| return 0; /* Unknown */ |
| } |
| |
| unsigned int __weak smbios_processor_characteristics(void) |
| { |
| return 0; |
| } |
| |
| unsigned int __weak smbios_processor_family(struct cpuid_result res) |
| { |
| return (res.eax > 0) ? 0x0c : 0x6; |
| } |
| |
| unsigned int __weak smbios_cache_error_correction_type(u8 level) |
| { |
| return SMBIOS_CACHE_ERROR_CORRECTION_UNKNOWN; |
| } |
| |
| unsigned int __weak smbios_cache_sram_type(void) |
| { |
| return SMBIOS_CACHE_SRAM_TYPE_UNKNOWN; |
| } |
| |
| unsigned int __weak smbios_cache_conf_operation_mode(u8 level) |
| { |
| return SMBIOS_CACHE_OP_MODE_UNKNOWN; /* Unknown */ |
| } |
| |
| /* Returns the processor voltage in 100mV units */ |
| unsigned int __weak smbios_cpu_get_voltage(void) |
| { |
| return 0; /* Unknown */ |
| } |
| |
| static size_t get_number_of_caches(size_t max_logical_cpus_sharing_cache) |
| { |
| size_t number_of_cpus_per_package = 0; |
| size_t max_logical_cpus_per_package = 0; |
| struct cpuid_result res; |
| |
| if (!cpu_have_cpuid()) |
| return 1; |
| |
| res = cpuid(1); |
| |
| max_logical_cpus_per_package = (res.ebx >> 16) & 0xff; |
| |
| /* Check if it's last level cache */ |
| if (max_logical_cpus_sharing_cache == max_logical_cpus_per_package) |
| return 1; |
| |
| if (cpuid_get_max_func() >= 0xb) { |
| res = cpuid_ext(0xb, 1); |
| number_of_cpus_per_package = res.ebx & 0xff; |
| } else { |
| number_of_cpus_per_package = max_logical_cpus_per_package; |
| } |
| |
| return number_of_cpus_per_package / max_logical_cpus_sharing_cache; |
| } |
| |
| static int smbios_write_type1(unsigned long *current, int handle) |
| { |
| struct smbios_type1 *t = smbios_carve_table(*current, SMBIOS_SYSTEM_INFORMATION, |
| sizeof(*t), handle); |
| |
| t->manufacturer = smbios_add_string(t->eos, smbios_system_manufacturer()); |
| t->product_name = smbios_add_string(t->eos, smbios_system_product_name()); |
| t->serial_number = smbios_add_string(t->eos, smbios_system_serial_number()); |
| t->wakeup_type = smbios_system_wakeup_type(); |
| t->sku = smbios_add_string(t->eos, smbios_system_sku()); |
| t->version = smbios_add_string(t->eos, smbios_system_version()); |
| #ifdef CONFIG_MAINBOARD_FAMILY |
| t->family = smbios_add_string(t->eos, CONFIG_MAINBOARD_FAMILY); |
| #endif |
| smbios_system_set_uuid(t->uuid); |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| return len; |
| } |
| |
| static int smbios_write_type2(unsigned long *current, int handle, const int chassis_handle) |
| { |
| struct smbios_type2 *t = smbios_carve_table(*current, SMBIOS_BOARD_INFORMATION, |
| sizeof(*t), handle); |
| |
| t->manufacturer = smbios_add_string(t->eos, smbios_mainboard_manufacturer()); |
| t->product_name = smbios_add_string(t->eos, smbios_mainboard_product_name()); |
| t->serial_number = smbios_add_string(t->eos, smbios_mainboard_serial_number()); |
| t->version = smbios_add_string(t->eos, smbios_mainboard_version()); |
| t->asset_tag = smbios_add_string(t->eos, smbios_mainboard_asset_tag()); |
| t->feature_flags = smbios_mainboard_feature_flags(); |
| t->location_in_chassis = smbios_add_string(t->eos, |
| smbios_mainboard_location_in_chassis()); |
| t->board_type = smbios_mainboard_board_type(); |
| t->chassis_handle = chassis_handle; |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| return len; |
| } |
| |
| static int smbios_write_type3(unsigned long *current, int handle) |
| { |
| struct smbios_type3 *t = smbios_carve_table(*current, SMBIOS_SYSTEM_ENCLOSURE, |
| sizeof(*t), handle); |
| |
| t->manufacturer = smbios_add_string(t->eos, smbios_system_manufacturer()); |
| t->bootup_state = SMBIOS_STATE_SAFE; |
| t->power_supply_state = SMBIOS_STATE_SAFE; |
| t->thermal_state = SMBIOS_STATE_SAFE; |
| t->_type = smbios_mainboard_enclosure_type(); |
| t->security_status = SMBIOS_STATE_SAFE; |
| t->number_of_power_cords = smbios_chassis_power_cords(); |
| t->asset_tag_number = smbios_add_string(t->eos, smbios_mainboard_asset_tag()); |
| t->version = smbios_add_string(t->eos, smbios_chassis_version()); |
| t->serial_number = smbios_add_string(t->eos, smbios_chassis_serial_number()); |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| return len; |
| } |
| |
| #define MAX_CPUS_ENABLED (CONFIG_MAX_CPUS > 0xff ? 0xff : CONFIG_MAX_CPUS) |
| |
| static int smbios_write_type4(unsigned long *current, int handle) |
| { |
| unsigned int cpu_voltage; |
| struct cpuid_result res; |
| uint16_t characteristics = 0; |
| static unsigned int cnt = 0; |
| char buf[8]; |
| |
| /* Provide sane defaults even for CPU without CPUID */ |
| res.eax = res.edx = 0; |
| res.ebx = 0x10000; |
| |
| if (cpu_have_cpuid()) |
| res = cpuid(1); |
| |
| struct smbios_type4 *t = smbios_carve_table(*current, SMBIOS_PROCESSOR_INFORMATION, |
| sizeof(*t), handle); |
| |
| snprintf(buf, sizeof(buf), "CPU%d", cnt++); |
| t->socket_designation = smbios_add_string(t->eos, buf); |
| |
| t->processor_id[0] = res.eax; |
| t->processor_id[1] = res.edx; |
| t->processor_manufacturer = smbios_cpu_vendor(t->eos); |
| t->processor_version = smbios_processor_name(t->eos); |
| t->processor_family = smbios_processor_family(res); |
| t->processor_type = 3; /* System Processor */ |
| /* |
| * If CPUID leaf 11 is available, calculate "core count" by dividing |
| * SMT_ID (logical processors in a core) by Core_ID (number of cores). |
| * This seems to be the way to arrive to a number of cores mentioned on |
| * ark.intel.com. |
| */ |
| if (cpu_have_cpuid() && cpuid_get_max_func() >= 0xb) { |
| uint32_t leaf_b_cores = 0, leaf_b_threads = 0; |
| res = cpuid_ext(0xb, 1); |
| leaf_b_cores = res.ebx; |
| res = cpuid_ext(0xb, 0); |
| leaf_b_threads = res.ebx; |
| /* if hyperthreading is not available, pretend this is 1 */ |
| if (leaf_b_threads == 0) |
| leaf_b_threads = 1; |
| |
| t->core_count2 = leaf_b_cores / leaf_b_threads; |
| t->core_count = t->core_count2 > 0xff ? 0xff : t->core_count2; |
| t->thread_count2 = leaf_b_cores; |
| t->thread_count = t->thread_count2 > 0xff ? 0xff : t->thread_count2; |
| } else { |
| t->core_count = (res.ebx >> 16) & 0xff; |
| t->core_count2 = t->core_count; |
| t->thread_count2 = t->core_count2; |
| t->thread_count = t->thread_count2; |
| } |
| /* Assume we enable all the cores always, capped only by MAX_CPUS */ |
| t->core_enabled = MIN(t->core_count, MAX_CPUS_ENABLED); |
| t->core_enabled2 = MIN(t->core_count2, CONFIG_MAX_CPUS); |
| t->l1_cache_handle = 0xffff; |
| t->l2_cache_handle = 0xffff; |
| t->l3_cache_handle = 0xffff; |
| t->serial_number = smbios_add_string(t->eos, smbios_processor_serial_number()); |
| t->status = SMBIOS_PROCESSOR_STATUS_CPU_ENABLED | SMBIOS_PROCESSOR_STATUS_POPULATED; |
| t->processor_upgrade = get_socket_type(); |
| if (cpu_have_cpuid() && cpuid_get_max_func() >= 0x16) { |
| t->current_speed = cpuid_eax(0x16); /* base frequency */ |
| t->external_clock = cpuid_ecx(0x16); |
| } else { |
| t->current_speed = smbios_cpu_get_current_speed_mhz(); |
| t->external_clock = smbios_processor_external_clock(); |
| } |
| |
| /* This field identifies a capability for the system, not the processor itself. */ |
| t->max_speed = smbios_cpu_get_max_speed_mhz(); |
| |
| if (cpu_have_cpuid()) { |
| res = cpuid(1); |
| |
| if ((res.ecx) & BIT(5)) |
| characteristics |= BIT(6); /* BIT6: Enhanced Virtualization */ |
| |
| if ((res.edx) & BIT(28)) |
| characteristics |= BIT(4); /* BIT4: Hardware Thread */ |
| |
| if (((cpuid_eax(0x80000000) - 0x80000000) + 1) > 2) { |
| res = cpuid(0x80000001); |
| |
| if ((res.edx) & BIT(20)) |
| characteristics |= BIT(5); /* BIT5: Execute Protection */ |
| } |
| } |
| t->processor_characteristics = characteristics | smbios_processor_characteristics(); |
| cpu_voltage = smbios_cpu_get_voltage(); |
| if (cpu_voltage > 0) |
| t->voltage = 0x80 | cpu_voltage; |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| return len; |
| } |
| |
| /* |
| * Write SMBIOS type 7. |
| * Fill in some fields with constant values, as gathering the information |
| * from CPUID is impossible. |
| */ |
| static int smbios_write_type7(unsigned long *current, |
| const int handle, |
| const u8 level, |
| const u8 sram_type, |
| const enum smbios_cache_associativity associativity, |
| const enum smbios_cache_type type, |
| const size_t max_cache_size, |
| const size_t cache_size) |
| { |
| char buf[8]; |
| |
| struct smbios_type7 *t = smbios_carve_table(*current, SMBIOS_CACHE_INFORMATION, |
| sizeof(*t), handle); |
| |
| snprintf(buf, sizeof(buf), "CACHE%x", level); |
| t->socket_designation = smbios_add_string(t->eos, buf); |
| |
| t->cache_configuration = SMBIOS_CACHE_CONF_LEVEL(level) | |
| SMBIOS_CACHE_CONF_LOCATION(0) | /* Internal */ |
| SMBIOS_CACHE_CONF_ENABLED(1) | /* Enabled */ |
| SMBIOS_CACHE_CONF_OPERATION_MODE(smbios_cache_conf_operation_mode(level)); |
| |
| if (max_cache_size < (SMBIOS_CACHE_SIZE_MASK * KiB)) { |
| t->max_cache_size = max_cache_size / KiB; |
| t->max_cache_size2 = t->max_cache_size; |
| |
| t->max_cache_size |= SMBIOS_CACHE_SIZE_UNIT_1KB; |
| t->max_cache_size2 |= SMBIOS_CACHE_SIZE2_UNIT_1KB; |
| } else { |
| if (max_cache_size < (SMBIOS_CACHE_SIZE_MASK * 64 * KiB)) |
| t->max_cache_size = max_cache_size / (64 * KiB); |
| else |
| t->max_cache_size = SMBIOS_CACHE_SIZE_OVERFLOW; |
| t->max_cache_size2 = max_cache_size / (64 * KiB); |
| |
| t->max_cache_size |= SMBIOS_CACHE_SIZE_UNIT_64KB; |
| t->max_cache_size2 |= SMBIOS_CACHE_SIZE2_UNIT_64KB; |
| } |
| |
| if (cache_size < (SMBIOS_CACHE_SIZE_MASK * KiB)) { |
| t->installed_size = cache_size / KiB; |
| t->installed_size2 = t->installed_size; |
| |
| t->installed_size |= SMBIOS_CACHE_SIZE_UNIT_1KB; |
| t->installed_size2 |= SMBIOS_CACHE_SIZE2_UNIT_1KB; |
| } else { |
| if (cache_size < (SMBIOS_CACHE_SIZE_MASK * 64 * KiB)) |
| t->installed_size = cache_size / (64 * KiB); |
| else |
| t->installed_size = SMBIOS_CACHE_SIZE_OVERFLOW; |
| t->installed_size2 = cache_size / (64 * KiB); |
| |
| t->installed_size |= SMBIOS_CACHE_SIZE_UNIT_64KB; |
| t->installed_size2 |= SMBIOS_CACHE_SIZE2_UNIT_64KB; |
| } |
| |
| t->associativity = associativity; |
| t->supported_sram_type = sram_type; |
| t->current_sram_type = sram_type; |
| t->cache_speed = 0; /* Unknown */ |
| t->error_correction_type = smbios_cache_error_correction_type(level); |
| t->system_cache_type = type; |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| return len; |
| } |
| |
| /* Convert the associativity as integer to the SMBIOS enum if available */ |
| static enum smbios_cache_associativity smbios_cache_associativity(const u8 num) |
| { |
| switch (num) { |
| case 1: |
| return SMBIOS_CACHE_ASSOCIATIVITY_DIRECT; |
| case 2: |
| return SMBIOS_CACHE_ASSOCIATIVITY_2WAY; |
| case 4: |
| return SMBIOS_CACHE_ASSOCIATIVITY_4WAY; |
| case 8: |
| return SMBIOS_CACHE_ASSOCIATIVITY_8WAY; |
| case 12: |
| return SMBIOS_CACHE_ASSOCIATIVITY_12WAY; |
| case 16: |
| return SMBIOS_CACHE_ASSOCIATIVITY_16WAY; |
| case 20: |
| return SMBIOS_CACHE_ASSOCIATIVITY_20WAY; |
| case 24: |
| return SMBIOS_CACHE_ASSOCIATIVITY_24WAY; |
| case 32: |
| return SMBIOS_CACHE_ASSOCIATIVITY_32WAY; |
| case 48: |
| return SMBIOS_CACHE_ASSOCIATIVITY_48WAY; |
| case 64: |
| return SMBIOS_CACHE_ASSOCIATIVITY_64WAY; |
| case 0xff: |
| return SMBIOS_CACHE_ASSOCIATIVITY_FULL; |
| default: |
| return SMBIOS_CACHE_ASSOCIATIVITY_UNKNOWN; |
| }; |
| } |
| |
| /* |
| * Parse the "Deterministic Cache Parameters" as provided by Intel in |
| * leaf 4 or AMD in extended leaf 0x8000001d. |
| * |
| * @param current Pointer to memory address to write the tables to |
| * @param handle Pointer to handle for the tables |
| * @param max_struct_size Pointer to maximum struct size |
| * @param type4 Pointer to SMBIOS type 4 structure |
| */ |
| static int smbios_write_type7_cache_parameters(unsigned long *current, |
| int *handle, |
| int *max_struct_size, |
| struct smbios_type4 *type4) |
| { |
| unsigned int cnt = CACHE_L1D; |
| int len = 0; |
| |
| if (!cpu_have_cpuid()) |
| return len; |
| |
| enum cpu_type dcache_cpuid = cpu_check_deterministic_cache_cpuid_supported(); |
| if (dcache_cpuid == CPUID_TYPE_INVALID || dcache_cpuid == CPUID_COMMAND_UNSUPPORTED) { |
| printk(BIOS_DEBUG, "SMBIOS: Unknown CPU or CPU doesn't support Deterministic " |
| "Cache CPUID leaf\n"); |
| return len; |
| } |
| |
| while (1) { |
| enum smbios_cache_associativity associativity; |
| enum smbios_cache_type type; |
| struct cpu_cache_info info; |
| if (!fill_cpu_cache_info(cnt++, &info)) |
| continue; |
| |
| const u8 cache_type = info.type; |
| const u8 level = info.level; |
| const size_t assoc = info.num_ways; |
| const size_t cache_share = info.num_cores_shared; |
| const size_t cache_size = info.size * get_number_of_caches(cache_share); |
| |
| if (!cache_type) |
| /* No more caches in the system */ |
| break; |
| |
| switch (cache_type) { |
| case 1: |
| type = SMBIOS_CACHE_TYPE_DATA; |
| break; |
| case 2: |
| type = SMBIOS_CACHE_TYPE_INSTRUCTION; |
| break; |
| case 3: |
| type = SMBIOS_CACHE_TYPE_UNIFIED; |
| break; |
| default: |
| type = SMBIOS_CACHE_TYPE_UNKNOWN; |
| break; |
| } |
| |
| if (info.fully_associative) |
| associativity = SMBIOS_CACHE_ASSOCIATIVITY_FULL; |
| else |
| associativity = smbios_cache_associativity(assoc); |
| |
| const int h = (*handle)++; |
| |
| update_max(len, *max_struct_size, smbios_write_type7(current, h, |
| level, smbios_cache_sram_type(), associativity, |
| type, cache_size, cache_size)); |
| |
| if (type4) { |
| switch (level) { |
| case 1: |
| type4->l1_cache_handle = h; |
| break; |
| case 2: |
| type4->l2_cache_handle = h; |
| break; |
| case 3: |
| type4->l3_cache_handle = h; |
| break; |
| } |
| } |
| }; |
| |
| return len; |
| } |
| |
| int smbios_write_type8(unsigned long *current, int *handle, |
| const struct port_information *port, |
| size_t num_ports) |
| { |
| unsigned int totallen = 0, i; |
| |
| for (i = 0; i < num_ports; i++, port++) { |
| struct smbios_type8 *t = smbios_carve_table(*current, |
| SMBIOS_PORT_CONNECTOR_INFORMATION, |
| sizeof(*t), *handle); |
| t->internal_reference_designator = |
| smbios_add_string(t->eos, port->internal_reference_designator); |
| t->internal_connector_type = port->internal_connector_type; |
| t->external_reference_designator = |
| smbios_add_string(t->eos, port->external_reference_designator); |
| t->external_connector_type = port->external_connector_type; |
| t->port_type = port->port_type; |
| *handle += 1; |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| totallen += len; |
| } |
| return totallen; |
| } |
| |
| int smbios_write_type9(unsigned long *current, int *handle, |
| const char *name, const enum misc_slot_type type, |
| const enum slot_data_bus_bandwidth bandwidth, |
| const enum misc_slot_usage usage, |
| const enum misc_slot_length length, |
| const u16 id, u8 slot_char1, u8 slot_char2, u8 bus, u8 dev_func) |
| { |
| struct smbios_type9 *t = smbios_carve_table(*current, SMBIOS_SYSTEM_SLOTS, |
| sizeof(*t), *handle); |
| |
| t->slot_designation = smbios_add_string(t->eos, name ? name : "SLOT"); |
| t->slot_type = type; |
| /* TODO add slot_id supoort, will be "_SUN" for ACPI devices */ |
| t->slot_id = id; |
| t->slot_data_bus_width = bandwidth; |
| t->current_usage = usage; |
| t->slot_length = length; |
| t->slot_characteristics_1 = slot_char1; |
| t->slot_characteristics_2 = slot_char2; |
| t->segment_group_number = 0; |
| t->bus_number = bus; |
| t->device_function_number = dev_func; |
| t->data_bus_width = SlotDataBusWidthOther; |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| *handle += 1; |
| return len; |
| } |
| |
| static int smbios_write_type11(unsigned long *current, int *handle) |
| { |
| struct device *dev; |
| struct smbios_type11 *t = smbios_carve_table(*current, SMBIOS_OEM_STRINGS, |
| sizeof(*t), *handle); |
| |
| for (dev = all_devices; dev; dev = dev->next) { |
| if (dev->ops && dev->ops->get_smbios_strings) |
| dev->ops->get_smbios_strings(dev, t); |
| } |
| |
| if (t->count == 0) { |
| memset(t, 0, sizeof(*t)); |
| return 0; |
| } |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| (*handle)++; |
| return len; |
| } |
| |
| static int smbios_write_type16(unsigned long *current, int *handle) |
| { |
| int i; |
| uint64_t max_capacity; |
| |
| struct memory_info *meminfo; |
| meminfo = cbmem_find(CBMEM_ID_MEMINFO); |
| if (meminfo == NULL) |
| return 0; /* can't find mem info in cbmem */ |
| |
| printk(BIOS_INFO, "Create SMBIOS type 16\n"); |
| |
| if (meminfo->max_capacity_mib == 0 || meminfo->number_of_devices == 0) { |
| /* Fill in defaults if not provided */ |
| meminfo->number_of_devices = 0; |
| meminfo->max_capacity_mib = 0; |
| for (i = 0; i < meminfo->dimm_cnt && i < ARRAY_SIZE(meminfo->dimm); i++) { |
| meminfo->max_capacity_mib += meminfo->dimm[i].dimm_size; |
| meminfo->number_of_devices += !!meminfo->dimm[i].dimm_size; |
| } |
| } |
| |
| struct smbios_type16 *t = smbios_carve_table(*current, SMBIOS_PHYS_MEMORY_ARRAY, |
| sizeof(*t), *handle); |
| |
| t->location = MEMORY_ARRAY_LOCATION_SYSTEM_BOARD; |
| t->use = MEMORY_ARRAY_USE_SYSTEM; |
| t->memory_error_correction = meminfo->ecc_type; |
| |
| /* no error information handle available */ |
| t->memory_error_information_handle = 0xFFFE; |
| max_capacity = meminfo->max_capacity_mib; |
| if (max_capacity * (MiB / KiB) < SMBIOS_USE_EXTENDED_MAX_CAPACITY) |
| t->maximum_capacity = max_capacity * (MiB / KiB); |
| else { |
| t->maximum_capacity = SMBIOS_USE_EXTENDED_MAX_CAPACITY; |
| t->extended_maximum_capacity = max_capacity * MiB; |
| } |
| t->number_of_memory_devices = meminfo->number_of_devices; |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| (*handle)++; |
| return len; |
| } |
| |
| static int smbios_write_type17(unsigned long *current, int *handle, int type16) |
| { |
| int totallen = 0; |
| int i; |
| |
| struct memory_info *meminfo; |
| meminfo = cbmem_find(CBMEM_ID_MEMINFO); |
| if (meminfo == NULL) |
| return 0; /* can't find mem info in cbmem */ |
| |
| printk(BIOS_INFO, "Create SMBIOS type 17\n"); |
| for (i = 0; i < meminfo->dimm_cnt && i < ARRAY_SIZE(meminfo->dimm); i++) { |
| struct dimm_info *d = &meminfo->dimm[i]; |
| /* |
| * Windows 10 GetPhysicallyInstalledSystemMemory functions reads SMBIOS tables |
| * type 16 and type 17. The type 17 tables need to point to a type 16 table. |
| * Otherwise, the physical installed memory size is guessed from the system |
| * memory map, which results in a slightly smaller value than the actual size. |
| */ |
| int len; |
| if (d->dimm_size > 0) |
| len = create_smbios_type17_for_dimm(d, current, handle, type16); |
| else |
| len = create_smbios_type17_for_empty_slot(d, current, handle, type16); |
| |
| *current += len; |
| totallen += len; |
| } |
| return totallen; |
| } |
| |
| static int smbios_write_type19(unsigned long *current, int *handle, int type16) |
| { |
| int i; |
| |
| struct memory_info *meminfo; |
| meminfo = cbmem_find(CBMEM_ID_MEMINFO); |
| if (meminfo == NULL) |
| return 0; /* can't find mem info in cbmem */ |
| |
| struct smbios_type19 *t = smbios_carve_table(*current, |
| SMBIOS_MEMORY_ARRAY_MAPPED_ADDRESS, |
| sizeof(*t), *handle); |
| |
| t->memory_array_handle = type16; |
| |
| for (i = 0; i < meminfo->dimm_cnt && i < ARRAY_SIZE(meminfo->dimm); i++) { |
| if (meminfo->dimm[i].dimm_size > 0) { |
| t->extended_ending_address += meminfo->dimm[i].dimm_size; |
| t->partition_width++; |
| } |
| } |
| t->extended_ending_address *= MiB; |
| |
| /* Check if it fits into regular address */ |
| if (t->extended_ending_address >= KiB && |
| t->extended_ending_address < 0x40000000000ULL) { |
| /* |
| * FIXME: The starting address is SoC specific, but SMBIOS tables are only |
| * exported on x86 where it's always 0. |
| */ |
| |
| t->starting_address = 0; |
| t->ending_address = t->extended_ending_address / KiB - 1; |
| t->extended_starting_address = ~0; |
| t->extended_ending_address = ~0; |
| } else { |
| t->starting_address = ~0; |
| t->ending_address = ~0; |
| t->extended_starting_address = 0; |
| t->extended_ending_address--; |
| } |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| *handle += 1; |
| return len; |
| } |
| |
| static int smbios_write_type20_table(unsigned long *current, int *handle, u32 addr_start, |
| u32 addr_end, int type17_handle, int type19_handle) |
| { |
| struct smbios_type20 *t = smbios_carve_table(*current, SMBIOS_MEMORY_DEVICE_MAPPED_ADDRESS, |
| sizeof(*t), *handle); |
| |
| t->memory_device_handle = type17_handle; |
| t->memory_array_mapped_address_handle = type19_handle; |
| t->addr_start = addr_start; |
| t->addr_end = addr_end; |
| t->partition_row_pos = 0xff; |
| t->interleave_pos = 0xff; |
| t->interleave_depth = 0xff; |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| *handle += 1; |
| return len; |
| } |
| |
| static int smbios_write_type20(unsigned long *current, int *handle, |
| int type17_handle, int type19_handle) |
| { |
| u32 start_addr = 0; |
| int totallen = 0; |
| int i; |
| |
| struct memory_info *meminfo; |
| meminfo = cbmem_find(CBMEM_ID_MEMINFO); |
| if (meminfo == NULL) |
| return 0; /* can't find mem info in cbmem */ |
| |
| printk(BIOS_INFO, "Create SMBIOS type 20\n"); |
| for (i = 0; i < meminfo->dimm_cnt && i < ARRAY_SIZE(meminfo->dimm); i++) { |
| struct dimm_info *dimm; |
| dimm = &meminfo->dimm[i]; |
| if (dimm->dimm_size == 0) |
| continue; |
| |
| u32 end_addr = start_addr + (dimm->dimm_size << 10) - 1; |
| totallen += smbios_write_type20_table(current, handle, start_addr, end_addr, |
| type17_handle, type19_handle); |
| start_addr = end_addr + 1; |
| } |
| return totallen; |
| } |
| |
| int smbios_write_type28(unsigned long *current, int *handle, |
| const char *name, |
| const enum smbios_temp_location location, |
| const enum smbios_temp_status status, |
| u16 max_value, u16 min_value, |
| u16 resolution, u16 tolerance, |
| u16 accuracy, |
| u32 oem, |
| u16 nominal_value) |
| { |
| struct smbios_type28 *t = smbios_carve_table(*current, SMBIOS_TEMPERATURE_PROBE, |
| sizeof(*t), *handle); |
| |
| t->description = smbios_add_string(t->eos, name ? name : "Temperature"); |
| t->location_and_status = location | (status << 5); |
| t->maximum_value = max_value; |
| t->minimum_value = min_value; |
| t->resolution = resolution; |
| t->tolerance = tolerance; |
| t->accuracy = accuracy; |
| t->oem_defined = oem; |
| t->nominal_value = nominal_value; |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| *handle += 1; |
| return len; |
| } |
| |
| static int smbios_write_type32(unsigned long *current, int handle) |
| { |
| struct smbios_type32 *t = smbios_carve_table(*current, SMBIOS_SYSTEM_BOOT_INFORMATION, |
| sizeof(*t), handle); |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| return len; |
| } |
| |
| int smbios_write_type38(unsigned long *current, int *handle, |
| const enum smbios_bmc_interface_type interface_type, |
| const u8 ipmi_rev, const u8 i2c_addr, const u8 nv_addr, |
| const u64 base_addr, const u8 base_modifier, |
| const u8 irq) |
| { |
| struct smbios_type38 *t = smbios_carve_table(*current, SMBIOS_IPMI_DEVICE_INFORMATION, |
| sizeof(*t), *handle); |
| |
| t->interface_type = interface_type; |
| t->ipmi_rev = ipmi_rev; |
| t->i2c_slave_addr = i2c_addr; |
| t->nv_storage_addr = nv_addr; |
| t->base_address = base_addr; |
| t->base_address_modifier = base_modifier; |
| t->irq = irq; |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| *handle += 1; |
| return len; |
| } |
| |
| int smbios_write_type39(unsigned long *current, int *handle, |
| u8 unit_group, const char *loc, const char *dev_name, |
| const char *man, const char *serial_num, |
| const char *tag_num, const char *part_num, |
| const char *rev_lvl, u16 max_pow_cap, |
| const struct power_supply_ch *ps_ch) |
| { |
| struct smbios_type39 *t = smbios_carve_table(*current, |
| SMBIOS_SYSTEM_POWER_SUPPLY, |
| sizeof(*t), *handle); |
| |
| uint16_t val = 0; |
| uint16_t ps_type, ps_status, vol_switch, ps_unplug, ps_present, hot_rep; |
| |
| t->power_unit_group = unit_group; |
| t->location = smbios_add_string(t->eos, loc); |
| t->device_name = smbios_add_string(t->eos, dev_name); |
| t->manufacturer = smbios_add_string(t->eos, man); |
| t->serial_number = smbios_add_string(t->eos, serial_num); |
| t->asset_tag_number = smbios_add_string(t->eos, tag_num); |
| t->model_part_number = smbios_add_string(t->eos, part_num); |
| t->revision_level = smbios_add_string(t->eos, rev_lvl); |
| t->max_power_capacity = max_pow_cap; |
| |
| ps_type = ps_ch->power_supply_type & 0xF; |
| ps_status = ps_ch->power_supply_status & 0x7; |
| vol_switch = ps_ch->input_voltage_range_switch & 0xF; |
| ps_unplug = ps_ch->power_supply_unplugged & 0x1; |
| ps_present = ps_ch->power_supply_present & 0x1; |
| hot_rep = ps_ch->power_supply_hot_replaceble & 0x1; |
| |
| val |= (ps_type << 10); |
| val |= (ps_status << 7); |
| val |= (vol_switch << 3); |
| val |= (ps_unplug << 2); |
| val |= (ps_present << 1); |
| val |= hot_rep; |
| t->power_supply_characteristics = val; |
| |
| t->input_voltage_probe_handle = 0xFFFF; |
| t->cooling_device_handle = 0xFFFF; |
| t->input_current_probe_handle = 0xFFFF; |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| *handle += 1; |
| return len; |
| } |
| |
| int smbios_write_type41(unsigned long *current, int *handle, |
| const char *name, u8 instance, u16 segment, |
| u8 bus, u8 device, u8 function, u8 device_type) |
| { |
| struct smbios_type41 *t = smbios_carve_table(*current, |
| SMBIOS_ONBOARD_DEVICES_EXTENDED_INFORMATION, |
| sizeof(*t), *handle); |
| |
| t->reference_designation = smbios_add_string(t->eos, name); |
| t->device_type = device_type; |
| t->device_status = 1; |
| t->device_type_instance = instance; |
| t->segment_group_number = segment; |
| t->bus_number = bus; |
| t->device_number = device; |
| t->function_number = function; |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| *handle += 1; |
| return len; |
| } |
| |
| int smbios_write_type43(unsigned long *current, int *handle, const u32 vendor_id, |
| const u8 major_spec_ver, const u8 minor_spec_ver, |
| const u32 fw_ver1, const u32 fw_ver2, const char *description, |
| const u64 characteristics, const u32 oem_defined) |
| { |
| struct smbios_type43 *t = smbios_carve_table(*current, SMBIOS_TPM_DEVICE, |
| sizeof(*t), *handle); |
| |
| t->vendor_id = vendor_id; |
| t->major_spec_ver = major_spec_ver; |
| t->minor_spec_ver = minor_spec_ver; |
| t->fw_ver1 = fw_ver1; |
| t->fw_ver2 = fw_ver2; |
| t->characteristics = characteristics; |
| t->oem_defined = oem_defined; |
| t->description = smbios_add_string(t->eos, description); |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| *handle += 1; |
| return len; |
| } |
| |
| static int smbios_write_type127(unsigned long *current, int handle) |
| { |
| struct smbios_type127 *t = smbios_carve_table(*current, SMBIOS_END_OF_TABLE, |
| sizeof(*t), handle); |
| |
| const int len = smbios_full_table_len(&t->header, t->eos); |
| *current += len; |
| return len; |
| } |
| |
| /* Get the device type 41 from the dev struct */ |
| static u8 smbios_get_device_type_from_dev(struct device *dev) |
| { |
| u16 pci_basesubclass = (dev->class >> 8) & 0xFFFF; |
| |
| switch (pci_basesubclass) { |
| case PCI_CLASS_NOT_DEFINED: |
| return SMBIOS_DEVICE_TYPE_OTHER; |
| case PCI_CLASS_DISPLAY_VGA: |
| case PCI_CLASS_DISPLAY_XGA: |
| case PCI_CLASS_DISPLAY_3D: |
| case PCI_CLASS_DISPLAY_OTHER: |
| return SMBIOS_DEVICE_TYPE_VIDEO; |
| case PCI_CLASS_STORAGE_SCSI: |
| return SMBIOS_DEVICE_TYPE_SCSI; |
| case PCI_CLASS_NETWORK_ETHERNET: |
| return SMBIOS_DEVICE_TYPE_ETHERNET; |
| case PCI_CLASS_NETWORK_TOKEN_RING: |
| return SMBIOS_DEVICE_TYPE_TOKEN_RING; |
| case PCI_CLASS_MULTIMEDIA_VIDEO: |
| case PCI_CLASS_MULTIMEDIA_AUDIO: |
| case PCI_CLASS_MULTIMEDIA_PHONE: |
| case PCI_CLASS_MULTIMEDIA_OTHER: |
| return SMBIOS_DEVICE_TYPE_SOUND; |
| case PCI_CLASS_STORAGE_ATA: |
| return SMBIOS_DEVICE_TYPE_PATA; |
| case PCI_CLASS_STORAGE_SATA: |
| return SMBIOS_DEVICE_TYPE_SATA; |
| case PCI_CLASS_STORAGE_SAS: |
| return SMBIOS_DEVICE_TYPE_SAS; |
| default: |
| return SMBIOS_DEVICE_TYPE_UNKNOWN; |
| } |
| } |
| |
| static bool smbios_get_type41_instance_id(struct device *dev, u8 device_type, u8 *instance_id) |
| { |
| #if CONFIG(SMBIOS_TYPE41_PROVIDED_BY_DEVTREE) |
| *instance_id = dev->smbios_instance_id; |
| return dev->smbios_instance_id_valid; |
| #else |
| static u8 type41_inst_cnt[SMBIOS_DEVICE_TYPE_COUNT + 1] = {}; |
| |
| if (device_type == SMBIOS_DEVICE_TYPE_OTHER || |
| device_type == SMBIOS_DEVICE_TYPE_UNKNOWN) |
| return false; |
| |
| if (device_type > SMBIOS_DEVICE_TYPE_COUNT) |
| return false; |
| |
| *instance_id = type41_inst_cnt[device_type]++; |
| return true; |
| #endif |
| } |
| |
| static const char *smbios_get_type41_refdes(struct device *dev) |
| { |
| #if CONFIG(SMBIOS_TYPE41_PROVIDED_BY_DEVTREE) |
| if (dev->smbios_refdes) |
| return dev->smbios_refdes; |
| #endif |
| return get_pci_subclass_name(dev); |
| } |
| |
| static int smbios_generate_type41_from_devtree(struct device *dev, int *handle, |
| unsigned long *current) |
| { |
| if (dev->path.type != DEVICE_PATH_PCI) |
| return 0; |
| if (!dev->on_mainboard) |
| return 0; |
| |
| const u8 device_type = smbios_get_device_type_from_dev(dev); |
| |
| u8 instance_id; |
| |
| if (!smbios_get_type41_instance_id(dev, device_type, &instance_id)) |
| return 0; |
| |
| const char *name = smbios_get_type41_refdes(dev); |
| |
| return smbios_write_type41(current, handle, |
| name, // name |
| instance_id, // inst |
| 0, // segment |
| dev->bus->secondary, //bus |
| PCI_SLOT(dev->path.pci.devfn), // device |
| PCI_FUNC(dev->path.pci.devfn), // func |
| device_type); |
| } |
| |
| static int smbios_generate_type9_from_devtree(struct device *dev, int *handle, |
| unsigned long *current) |
| { |
| enum misc_slot_usage usage; |
| enum slot_data_bus_bandwidth bandwidth; |
| enum misc_slot_type type; |
| enum misc_slot_length length; |
| |
| if (dev->path.type != DEVICE_PATH_PCI) |
| return 0; |
| |
| if (!dev->smbios_slot_type && !dev->smbios_slot_data_width && |
| !dev->smbios_slot_designation && !dev->smbios_slot_length) |
| return 0; |
| |
| if (dev_is_active_bridge(dev)) |
| usage = SlotUsageInUse; |
| else if (dev->enabled) |
| usage = SlotUsageAvailable; |
| else |
| usage = SlotUsageUnknown; |
| |
| if (dev->smbios_slot_data_width) |
| bandwidth = dev->smbios_slot_data_width; |
| else |
| bandwidth = SlotDataBusWidthUnknown; |
| |
| if (dev->smbios_slot_type) |
| type = dev->smbios_slot_type; |
| else |
| type = SlotTypeUnknown; |
| |
| if (dev->smbios_slot_length) |
| length = dev->smbios_slot_length; |
| else |
| length = SlotLengthUnknown; |
| |
| return smbios_write_type9(current, handle, |
| dev->smbios_slot_designation, |
| type, |
| bandwidth, |
| usage, |
| length, |
| 0, |
| 1, |
| 0, |
| dev->bus->secondary, |
| dev->path.pci.devfn); |
| } |
| |
| int get_smbios_data(struct device *dev, int *handle, unsigned long *current) |
| { |
| int len = 0; |
| |
| len += smbios_generate_type9_from_devtree(dev, handle, current); |
| len += smbios_generate_type41_from_devtree(dev, handle, current); |
| |
| return len; |
| } |
| |
| static int smbios_walk_device_tree(struct device *tree, int *handle, unsigned long *current) |
| { |
| struct device *dev; |
| int len = 0; |
| |
| for (dev = tree; dev; dev = dev->next) { |
| if (!dev->enabled) |
| continue; |
| |
| if (dev->ops && dev->ops->get_smbios_data) { |
| printk(BIOS_INFO, "%s (%s)\n", dev_path(dev), dev_name(dev)); |
| len += dev->ops->get_smbios_data(dev, handle, current); |
| } else { |
| len += get_smbios_data(dev, handle, current); |
| } |
| } |
| return len; |
| } |
| |
| unsigned long smbios_write_tables(unsigned long current) |
| { |
| struct smbios_entry *se; |
| struct smbios_entry30 *se3; |
| unsigned long tables; |
| int len = 0; |
| int max_struct_size = 0; |
| int handle = 0; |
| |
| current = ALIGN_UP(current, 16); |
| printk(BIOS_DEBUG, "%s: %08lx\n", __func__, current); |
| |
| se = (struct smbios_entry *)current; |
| current += sizeof(*se); |
| current = ALIGN_UP(current, 16); |
| |
| se3 = (struct smbios_entry30 *)current; |
| current += sizeof(*se3); |
| current = ALIGN_UP(current, 16); |
| |
| tables = current; |
| update_max(len, max_struct_size, smbios_write_type0(¤t, handle++)); |
| update_max(len, max_struct_size, smbios_write_type1(¤t, handle++)); |
| |
| /* The chassis handle is the next one */ |
| update_max(len, max_struct_size, smbios_write_type2(¤t, handle, handle + 1)); |
| handle++; |
| update_max(len, max_struct_size, smbios_write_type3(¤t, handle++)); |
| |
| struct smbios_type4 *type4 = (struct smbios_type4 *)current; |
| update_max(len, max_struct_size, smbios_write_type4(¤t, handle++)); |
| len += smbios_write_type7_cache_parameters(¤t, &handle, &max_struct_size, type4); |
| update_max(len, max_struct_size, smbios_write_type11(¤t, &handle)); |
| if (CONFIG(ELOG)) |
| update_max(len, max_struct_size, |
| elog_smbios_write_type15(¤t, handle++)); |
| |
| const int type16 = handle; |
| update_max(len, max_struct_size, smbios_write_type16(¤t, &handle)); |
| const int type17 = handle; |
| update_max(len, max_struct_size, smbios_write_type17(¤t, &handle, type16)); |
| const int type19 = handle; |
| update_max(len, max_struct_size, smbios_write_type19(¤t, &handle, type16)); |
| update_max(len, max_struct_size, |
| smbios_write_type20(¤t, &handle, type17, type19)); |
| update_max(len, max_struct_size, smbios_write_type32(¤t, handle++)); |
| |
| update_max(len, max_struct_size, smbios_walk_device_tree(all_devices, |
| &handle, ¤t)); |
| |
| update_max(len, max_struct_size, smbios_write_type127(¤t, handle++)); |
| |
| /* Install SMBIOS 2.1 entry point */ |
| memset(se, 0, sizeof(*se)); |
| memcpy(se->anchor, "_SM_", 4); |
| se->length = sizeof(*se); |
| se->major_version = 3; |
| se->minor_version = 0; |
| se->max_struct_size = max_struct_size; |
| se->struct_count = handle; |
| memcpy(se->intermediate_anchor_string, "_DMI_", 5); |
| |
| se->struct_table_address = (u32)tables; |
| se->struct_table_length = len; |
| |
| se->intermediate_checksum = smbios_checksum((u8 *)se + 0x10, sizeof(*se) - 0x10); |
| se->checksum = smbios_checksum((u8 *)se, sizeof(*se)); |
| |
| /* Install SMBIOS 3.0 entry point */ |
| memset(se3, 0, sizeof(*se3)); |
| memcpy(se3->anchor, "_SM3_", 5); |
| se3->length = sizeof(*se3); |
| se3->major_version = 3; |
| se3->minor_version = 0; |
| |
| se3->struct_table_address = (u64)tables; |
| se3->struct_table_length = len; |
| |
| se3->checksum = smbios_checksum((u8 *)se3, sizeof(*se3)); |
| |
| return current; |
| } |