diff --git a/drivers/edac/i10nm_base.c b/drivers/edac/i10nm_base.c
index 2b83d6de9352b..e43f684ad4606 100644
--- a/drivers/edac/i10nm_base.c
+++ b/drivers/edac/i10nm_base.c
@@ -1012,54 +1012,6 @@ static struct notifier_block i10nm_mce_dec = {
 	.priority	= MCE_PRIO_EDAC,
 };
 
-#ifdef CONFIG_EDAC_DEBUG
-/*
- * Debug feature.
- * Exercise the address decode logic by writing an address to
- * /sys/kernel/debug/edac/i10nm_test/addr.
- */
-static struct dentry *i10nm_test;
-
-static int debugfs_u64_set(void *data, u64 val)
-{
-	struct mce m;
-
-	pr_warn_once("Fake error to 0x%llx injected via debugfs\n", val);
-
-	memset(&m, 0, sizeof(m));
-	/* ADDRV + MemRd + Unknown channel */
-	m.status = MCI_STATUS_ADDRV + 0x90;
-	/* One corrected error */
-	m.status |= BIT_ULL(MCI_STATUS_CEC_SHIFT);
-	m.addr = val;
-	skx_mce_check_error(NULL, 0, &m);
-
-	return 0;
-}
-DEFINE_SIMPLE_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n");
-
-static void setup_i10nm_debug(void)
-{
-	i10nm_test = edac_debugfs_create_dir("i10nm_test");
-	if (!i10nm_test)
-		return;
-
-	if (!edac_debugfs_create_file("addr", 0200, i10nm_test,
-				      NULL, &fops_u64_wo)) {
-		debugfs_remove(i10nm_test);
-		i10nm_test = NULL;
-	}
-}
-
-static void teardown_i10nm_debug(void)
-{
-	debugfs_remove_recursive(i10nm_test);
-}
-#else
-static inline void setup_i10nm_debug(void) {}
-static inline void teardown_i10nm_debug(void) {}
-#endif /*CONFIG_EDAC_DEBUG*/
-
 static int __init i10nm_init(void)
 {
 	u8 mc = 0, src_id = 0, node_id = 0;
@@ -1088,6 +1040,7 @@ static int __init i10nm_init(void)
 		return -ENODEV;
 
 	cfg = (struct res_config *)id->driver_data;
+	skx_set_res_cfg(cfg);
 	res_cfg = cfg;
 
 	rc = skx_get_hi_lo(0x09a2, off, &tolm, &tohm);
@@ -1158,7 +1111,7 @@ static int __init i10nm_init(void)
 
 	opstate_init();
 	mce_register_decode_chain(&i10nm_mce_dec);
-	setup_i10nm_debug();
+	skx_setup_debug("i10nm_test");
 
 	if (retry_rd_err_log && res_cfg->offsets_scrub && res_cfg->offsets_demand) {
 		skx_set_decode(i10nm_mc_decode, show_retry_rd_err_log);
@@ -1186,7 +1139,7 @@ static void __exit i10nm_exit(void)
 			enable_retry_rd_err_log(false);
 	}
 
-	teardown_i10nm_debug();
+	skx_teardown_debug();
 	mce_unregister_decode_chain(&i10nm_mce_dec);
 	skx_adxl_put();
 	skx_remove();
diff --git a/drivers/edac/skx_base.c b/drivers/edac/skx_base.c
index 0a862336a7ce8..51b2cc9472efa 100644
--- a/drivers/edac/skx_base.c
+++ b/drivers/edac/skx_base.c
@@ -587,54 +587,6 @@ static struct notifier_block skx_mce_dec = {
 	.priority	= MCE_PRIO_EDAC,
 };
 
-#ifdef CONFIG_EDAC_DEBUG
-/*
- * Debug feature.
- * Exercise the address decode logic by writing an address to
- * /sys/kernel/debug/edac/skx_test/addr.
- */
-static struct dentry *skx_test;
-
-static int debugfs_u64_set(void *data, u64 val)
-{
-	struct mce m;
-
-	pr_warn_once("Fake error to 0x%llx injected via debugfs\n", val);
-
-	memset(&m, 0, sizeof(m));
-	/* ADDRV + MemRd + Unknown channel */
-	m.status = MCI_STATUS_ADDRV + 0x90;
-	/* One corrected error */
-	m.status |= BIT_ULL(MCI_STATUS_CEC_SHIFT);
-	m.addr = val;
-	skx_mce_check_error(NULL, 0, &m);
-
-	return 0;
-}
-DEFINE_SIMPLE_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n");
-
-static void setup_skx_debug(void)
-{
-	skx_test = edac_debugfs_create_dir("skx_test");
-	if (!skx_test)
-		return;
-
-	if (!edac_debugfs_create_file("addr", 0200, skx_test,
-				      NULL, &fops_u64_wo)) {
-		debugfs_remove(skx_test);
-		skx_test = NULL;
-	}
-}
-
-static void teardown_skx_debug(void)
-{
-	debugfs_remove_recursive(skx_test);
-}
-#else
-static inline void setup_skx_debug(void) {}
-static inline void teardown_skx_debug(void) {}
-#endif /*CONFIG_EDAC_DEBUG*/
-
 /*
  * skx_init:
  *	make sure we are running on the correct cpu model
@@ -728,7 +680,7 @@ static int __init skx_init(void)
 	/* Ensure that the OPSTATE is set correctly for POLL or NMI */
 	opstate_init();
 
-	setup_skx_debug();
+	skx_setup_debug("skx_test");
 
 	mce_register_decode_chain(&skx_mce_dec);
 
@@ -742,7 +694,7 @@ static void __exit skx_exit(void)
 {
 	edac_dbg(2, "\n");
 	mce_unregister_decode_chain(&skx_mce_dec);
-	teardown_skx_debug();
+	skx_teardown_debug();
 	if (nvdimm_count)
 		skx_adxl_put();
 	skx_remove();
diff --git a/drivers/edac/skx_common.c b/drivers/edac/skx_common.c
index 8d18099fd528c..11ec30b5de821 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;
-
-	if (!skx_mem_cfg_2lm)
-		return false;
+	u32 errcode = GET_BITFIELD(m->status, 0, 15) & MCACOD_MEM_ERR_MASK;
 
-	errcode = GET_BITFIELD(m->status, 0, 15) & MCACOD_MEM_ERR_MASK;
+	if (errcode != MCACOD_MEM_CTL_ERR && errcode != MCACOD_EXT_MEM_ERR)
+		return ERR_SRC_NOT_MEMORY;
 
-	return errcode == MCACOD_EXT_MEM_ERR;
-}
-
-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;
 	}
 
@@ -739,6 +760,53 @@ void skx_remove(void)
 }
 EXPORT_SYMBOL_GPL(skx_remove);
 
+#ifdef CONFIG_EDAC_DEBUG
+/*
+ * Debug feature.
+ * Exercise the address decode logic by writing an address to
+ * /sys/kernel/debug/edac/{skx,i10nm}_test/addr.
+ */
+static struct dentry *skx_test;
+
+static int debugfs_u64_set(void *data, u64 val)
+{
+	struct mce m;
+
+	pr_warn_once("Fake error to 0x%llx injected via debugfs\n", val);
+
+	memset(&m, 0, sizeof(m));
+	/* ADDRV + MemRd + Unknown channel */
+	m.status = MCI_STATUS_ADDRV + 0x90;
+	/* One corrected error */
+	m.status |= BIT_ULL(MCI_STATUS_CEC_SHIFT);
+	m.addr = val;
+	skx_mce_check_error(NULL, 0, &m);
+
+	return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n");
+
+void skx_setup_debug(const char *name)
+{
+	skx_test = edac_debugfs_create_dir(name);
+	if (!skx_test)
+		return;
+
+	if (!edac_debugfs_create_file("addr", 0200, skx_test,
+				      NULL, &fops_u64_wo)) {
+		debugfs_remove(skx_test);
+		skx_test = NULL;
+	}
+}
+EXPORT_SYMBOL_GPL(skx_setup_debug);
+
+void skx_teardown_debug(void)
+{
+	debugfs_remove_recursive(skx_test);
+}
+EXPORT_SYMBOL_GPL(skx_teardown_debug);
+#endif /*CONFIG_EDAC_DEBUG*/
+
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Tony Luck");
 MODULE_DESCRIPTION("MC Driver for Intel server processors");
diff --git a/drivers/edac/skx_common.h b/drivers/edac/skx_common.h
index 11faf1db4fa48..85c978b612362 100644
--- a/drivers/edac/skx_common.h
+++ b/drivers/edac/skx_common.h
@@ -147,6 +147,13 @@ enum {
 	INDEX_MAX
 };
 
+enum error_source {
+	ERR_SRC_1LM,
+	ERR_SRC_2LM_NM,
+	ERR_SRC_2LM_FM,
+	ERR_SRC_NOT_MEMORY,
+};
+
 #define BIT_NM_MEMCTRL	BIT_ULL(INDEX_NM_MEMCTRL)
 #define BIT_NM_CHANNEL	BIT_ULL(INDEX_NM_CHANNEL)
 #define BIT_NM_DIMM	BIT_ULL(INDEX_NM_DIMM)
@@ -235,6 +242,7 @@ int skx_adxl_get(void);
 void skx_adxl_put(void);
 void skx_set_decode(skx_decode_f decode, skx_show_retry_log_f show_retry_log);
 void skx_set_mem_cfg(bool mem_cfg_2lm);
+void skx_set_res_cfg(struct res_config *cfg);
 
 int skx_get_src_id(struct skx_dev *d, int off, u8 *id);
 int skx_get_node_id(struct skx_dev *d, u8 *id);
@@ -260,4 +268,12 @@ int skx_mce_check_error(struct notifier_block *nb, unsigned long val,
 
 void skx_remove(void);
 
+#ifdef CONFIG_EDAC_DEBUG
+void skx_setup_debug(const char *name);
+void skx_teardown_debug(void);
+#else
+static inline void skx_setup_debug(const char *name) {}
+static inline void skx_teardown_debug(void) {}
+#endif
+
 #endif /* _SKX_COMM_EDAC_H */