diff options
Diffstat (limited to 'drivers/sysinfo/smbios.c')
| -rw-r--r-- | drivers/sysinfo/smbios.c | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/drivers/sysinfo/smbios.c b/drivers/sysinfo/smbios.c index a7ac8e3f072..99104274f72 100644 --- a/drivers/sysinfo/smbios.c +++ b/drivers/sysinfo/smbios.c @@ -5,14 +5,240 @@ */ #include <dm.h> +#include <smbios_plat.h> #include <sysinfo.h> +/* platform information storage */ +struct processor_info processor_info; +struct cache_info cache_info[SYSINFO_CACHE_LVL_MAX]; +struct sysinfo_plat sysinfo_smbios_p = { + /* Processor Information */ + .processor = &processor_info, + /* Cache Information */ + .cache = &cache_info[0], +}; + +/* structure for smbios private data storage */ +struct sysinfo_plat_priv { + struct processor_info *t4; + struct smbios_type7 t7[SYSINFO_CACHE_LVL_MAX]; + u16 cache_handles[SYSINFO_CACHE_LVL_MAX]; + u8 cache_level; +}; + +static void smbios_cache_info_dump(struct smbios_type7 *cache_info) +{ + log_debug("SMBIOS Type 7 (Cache Information):\n"); + log_debug("Cache Configuration: 0x%04x\n", cache_info->config.data); + log_debug("Maximum Cache Size: %u KB\n", cache_info->max_size.data); + log_debug("Installed Size: %u KB\n", cache_info->inst_size.data); + log_debug("Supported SRAM Type: 0x%04x\n", + cache_info->supp_sram_type.data); + log_debug("Current SRAM Type: 0x%04x\n", + cache_info->curr_sram_type.data); + log_debug("Cache Speed: %u\n", cache_info->speed); + log_debug("Error Correction Type: %u\n", cache_info->err_corr_type); + log_debug("System Cache Type: %u\n", cache_info->sys_cache_type); + log_debug("Associativity: %u\n", cache_info->associativity); + log_debug("Maximum Cache Size 2: %u KB\n", cache_info->max_size2.data); + log_debug("Installed Cache Size 2: %u KB\n", + cache_info->inst_size2.data); +} + +/* weak function for the platforms not yet supported */ +__weak int sysinfo_get_cache_info(u8 level, struct cache_info *cache_info) +{ + return -ENOSYS; +} + +__weak int sysinfo_get_processor_info(struct processor_info *pinfo) +{ + return -ENOSYS; +} + +void sysinfo_cache_info_default(struct cache_info *ci) +{ + memset(ci, 0, sizeof(*ci)); + ci->config.data = SMBIOS_CACHE_LOCATE_UNKNOWN | SMBIOS_CACHE_OP_UND; + ci->supp_sram_type.fields.unknown = 1; + ci->curr_sram_type.fields.unknown = 1; + ci->speed = SMBIOS_CACHE_SPEED_UNKNOWN; + ci->err_corr_type = SMBIOS_CACHE_ERRCORR_UNKNOWN; + ci->cache_type = SMBIOS_CACHE_SYSCACHE_TYPE_UNKNOWN; +} + +static int sysinfo_plat_detect(struct udevice *dev) +{ + return 0; +} + +static int sysinfo_plat_get_str(struct udevice *dev, int id, + size_t size, char *val) +{ + struct sysinfo_plat_priv *priv = dev_get_priv(dev); + const char *str = NULL; + + switch (id) { + case SYSID_SM_PROCESSOR_MANUFACT: + str = priv->t4->manufacturer; + break; + default: + break; + } + + if (!str) + return -ENOSYS; + + strlcpy(val, str, size); + + return 0; +} + +static int sysinfo_plat_get_int(struct udevice *dev, int id, int *val) +{ + struct sysinfo_plat_priv *priv = dev_get_priv(dev); + u8 i; + + if (id >= SYSID_SM_CACHE_INFO_START && + id <= SYSID_SM_CACHE_INFO_END) { + /* For smbios type 7 */ + for (i = 0; i < priv->cache_level; i++) { + switch (id - i) { + case SYSID_SM_CACHE_MAX_SIZE: + *val = priv->t7[i].max_size.data; + return 0; + case SYSID_SM_CACHE_INST_SIZE: + *val = priv->t7[i].inst_size.data; + return 0; + case SYSID_SM_CACHE_SCACHE_TYPE: + *val = priv->t7[i].sys_cache_type; + return 0; + case SYSID_SM_CACHE_ASSOC: + *val = priv->t7[i].associativity; + return 0; + case SYSID_SM_CACHE_MAX_SIZE2: + *val = priv->t7[i].max_size2.data; + return 0; + case SYSID_SM_CACHE_INST_SIZE2: + *val = priv->t7[i].inst_size2.data; + return 0; + default: + break; + } + } + return -ENOSYS; + } + + switch (id) { + case SYSID_SM_PROCESSOR_CORE_CNT: + *val = priv->t4->core_count; + break; + case SYSID_SM_PROCESSOR_CORE_EN: + *val = priv->t4->core_enabled; + break; + case SYSID_SM_PROCESSOR_CHARA: + *val = priv->t4->characteristics; + break; + case SYSID_SM_CACHE_LEVEL: + if (!priv->cache_level) /* No cache detected */ + return -ENOSYS; + *val = priv->cache_level - 1; + break; + default: + return -ENOSYS; + } + + return 0; +} + +static int sysinfo_plat_get_data(struct udevice *dev, int id, void **buf, + size_t *size) +{ + struct sysinfo_plat_priv *priv = dev_get_priv(dev); + + switch (id) { + case SYSID_SM_PROCESSOR_ID: + *buf = priv->t4->id; + *size = sizeof(priv->t4->id); + break; + case SYSID_SM_CACHE_HANDLE: + *buf = &priv->cache_handles[0]; + *size = sizeof(priv->cache_handles); + break; + default: + return -EOPNOTSUPP; + } + return 0; +} + +static int sysinfo_plat_probe(struct udevice *dev) +{ + struct sysinfo_plat_priv *priv = dev_get_priv(dev); + struct sysinfo_plat *plat = &sysinfo_smbios_p; + u8 level; + + if (!sysinfo_get_processor_info(plat->processor)) + priv->t4 = plat->processor; + + for (level = 0; level < SYSINFO_CACHE_LVL_MAX; level++) { + struct cache_info *pcache = plat->cache + level; + + if (sysinfo_get_cache_info(level, pcache)) + break; /* no more levels */ + + /* + * Fill in the SMBIOS type 7 structure, + * skip the header members (type, length, handle), + * and the ones in DT smbios node. + */ + priv->t7[level].sys_cache_type = pcache->cache_type; + priv->t7[level].associativity = pcache->associativity; + + if (pcache->max_size > SMBIOS_CACHE_SIZE_EXT_KB) { + priv->t7[level].max_size.data = 0xFFFF; + priv->t7[level].max_size2.fields.size = + pcache->max_size / 64; + priv->t7[level].max_size2.fields.granu = + SMBIOS_CACHE_GRANU_64K; + } else { + priv->t7[level].max_size.fields.size = pcache->max_size; + priv->t7[level].max_size.fields.granu = + SMBIOS_CACHE_GRANU_1K; + priv->t7[level].max_size2.data = 0; + } + if (pcache->inst_size > SMBIOS_CACHE_SIZE_EXT_KB) { + priv->t7[level].inst_size.data = 0xFFFF; + priv->t7[level].inst_size2.fields.size = + pcache->inst_size / 64; + priv->t7[level].inst_size2.fields.granu = + SMBIOS_CACHE_GRANU_64K; + } else { + priv->t7[level].inst_size.fields.size = + pcache->inst_size; + priv->t7[level].inst_size.fields.granu = + SMBIOS_CACHE_GRANU_1K; + priv->t7[level].inst_size2.data = 0; + } + smbios_cache_info_dump(&priv->t7[level]); + } + if (!level) /* no cache detected */ + return -ENOSYS; + + priv->cache_level = level; + + return 0; +} + static const struct udevice_id sysinfo_smbios_ids[] = { { .compatible = "u-boot,sysinfo-smbios" }, { /* sentinel */ } }; static const struct sysinfo_ops sysinfo_smbios_ops = { + .detect = sysinfo_plat_detect, + .get_str = sysinfo_plat_get_str, + .get_int = sysinfo_plat_get_int, + .get_data = sysinfo_plat_get_data, }; U_BOOT_DRIVER(sysinfo_smbios) = { @@ -20,4 +246,6 @@ U_BOOT_DRIVER(sysinfo_smbios) = { .id = UCLASS_SYSINFO, .of_match = sysinfo_smbios_ids, .ops = &sysinfo_smbios_ops, + .priv_auto = sizeof(struct sysinfo_plat_priv), + .probe = sysinfo_plat_probe, }; |