diff options
Diffstat (limited to 'drivers/edac/skx_common.c')
| -rw-r--r-- | drivers/edac/skx_common.c | 57 |
1 files changed, 39 insertions, 18 deletions
diff --git a/drivers/edac/skx_common.c b/drivers/edac/skx_common.c index 85713646957b..6cf17af7d911 100644 --- a/drivers/edac/skx_common.c +++ b/drivers/edac/skx_common.c @@ -47,6 +47,7 @@ static skx_show_retry_log_f skx_show_retry_rd_err_log; static u64 skx_tolm, skx_tohm; static LIST_HEAD(dev_edac_list); static bool skx_mem_cfg_2lm; +static struct res_config *skx_res_cfg; int skx_adxl_get(void) { @@ -119,7 +120,7 @@ void skx_adxl_put(void) } EXPORT_SYMBOL_GPL(skx_adxl_put); -static bool skx_adxl_decode(struct decoded_addr *res, bool error_in_1st_level_mem) +static bool skx_adxl_decode(struct decoded_addr *res, enum error_source err_src) { struct skx_dev *d; int i, len = 0; @@ -135,8 +136,24 @@ static bool skx_adxl_decode(struct decoded_addr *res, bool error_in_1st_level_me return false; } + /* + * GNR with a Flat2LM memory configuration may mistakenly classify + * a near-memory error(DDR5) as a far-memory error(CXL), resulting + * in the incorrect selection of decoded ADXL components. + * To address this, prefetch the decoded far-memory controller ID + * and adjust the error source to near-memory if the far-memory + * controller ID is invalid. + */ + if (skx_res_cfg && skx_res_cfg->type == GNR && err_src == ERR_SRC_2LM_FM) { + res->imc = (int)adxl_values[component_indices[INDEX_MEMCTRL]]; + if (res->imc == -1) { + err_src = ERR_SRC_2LM_NM; + edac_dbg(0, "Adjust the error source to near-memory.\n"); + } + } + res->socket = (int)adxl_values[component_indices[INDEX_SOCKET]]; - if (error_in_1st_level_mem) { + if (err_src == ERR_SRC_2LM_NM) { res->imc = (adxl_nm_bitmap & BIT_NM_MEMCTRL) ? (int)adxl_values[component_indices[INDEX_NM_MEMCTRL]] : -1; res->channel = (adxl_nm_bitmap & BIT_NM_CHANNEL) ? @@ -191,6 +208,12 @@ void skx_set_mem_cfg(bool mem_cfg_2lm) } EXPORT_SYMBOL_GPL(skx_set_mem_cfg); +void skx_set_res_cfg(struct res_config *cfg) +{ + skx_res_cfg = cfg; +} +EXPORT_SYMBOL_GPL(skx_set_res_cfg); + void skx_set_decode(skx_decode_f decode, skx_show_retry_log_f show_retry_log) { driver_decode = decode; @@ -620,31 +643,27 @@ static void skx_mce_output_error(struct mem_ctl_info *mci, optype, skx_msg); } -static bool skx_error_in_1st_level_mem(const struct mce *m) +static enum error_source skx_error_source(const struct mce *m) { - u32 errcode; + u32 errcode = GET_BITFIELD(m->status, 0, 15) & MCACOD_MEM_ERR_MASK; - if (!skx_mem_cfg_2lm) - return false; - - errcode = GET_BITFIELD(m->status, 0, 15) & MCACOD_MEM_ERR_MASK; - - return errcode == MCACOD_EXT_MEM_ERR; -} + if (errcode != MCACOD_MEM_CTL_ERR && errcode != MCACOD_EXT_MEM_ERR) + return ERR_SRC_NOT_MEMORY; -static bool skx_error_in_mem(const struct mce *m) -{ - u32 errcode; + if (!skx_mem_cfg_2lm) + return ERR_SRC_1LM; - errcode = GET_BITFIELD(m->status, 0, 15) & MCACOD_MEM_ERR_MASK; + if (errcode == MCACOD_EXT_MEM_ERR) + return ERR_SRC_2LM_NM; - return (errcode == MCACOD_MEM_CTL_ERR || errcode == MCACOD_EXT_MEM_ERR); + return ERR_SRC_2LM_FM; } int skx_mce_check_error(struct notifier_block *nb, unsigned long val, void *data) { struct mce *mce = (struct mce *)data; + enum error_source err_src; struct decoded_addr res; struct mem_ctl_info *mci; char *type; @@ -652,8 +671,10 @@ int skx_mce_check_error(struct notifier_block *nb, unsigned long val, if (mce->kflags & MCE_HANDLED_CEC) return NOTIFY_DONE; + err_src = skx_error_source(mce); + /* Ignore unless this is memory related with an address */ - if (!skx_error_in_mem(mce) || !(mce->status & MCI_STATUS_ADDRV)) + if (err_src == ERR_SRC_NOT_MEMORY || !(mce->status & MCI_STATUS_ADDRV)) return NOTIFY_DONE; memset(&res, 0, sizeof(res)); @@ -667,7 +688,7 @@ int skx_mce_check_error(struct notifier_block *nb, unsigned long val, /* Try driver decoder first */ if (!(driver_decode && driver_decode(&res))) { /* Then try firmware decoder (ACPI DSM methods) */ - if (!(adxl_component_count && skx_adxl_decode(&res, skx_error_in_1st_level_mem(mce)))) + if (!(adxl_component_count && skx_adxl_decode(&res, err_src))) return NOTIFY_DONE; } |