5 files changed, 51 insertions, 4 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/regulatory.c b/drivers/net/wireless/intel/iwlwifi/fw/regulatory.c
index 6adcfa6e214a..1444b628214b 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/regulatory.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/regulatory.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 /*
- * Copyright (C) 2023 Intel Corporation
+ * Copyright (C) 2023, 2025 Intel Corporation
  */
 #include <linux/dmi.h>
 #include "iwl-drv.h"
@@ -34,6 +34,7 @@ IWL_BIOS_TABLE_LOADER(wrds_table);
 IWL_BIOS_TABLE_LOADER(ewrd_table);
 IWL_BIOS_TABLE_LOADER(wgds_table);
 IWL_BIOS_TABLE_LOADER(ppag_table);
+IWL_BIOS_TABLE_LOADER(phy_filters);
 IWL_BIOS_TABLE_LOADER_DATA(tas_table, struct iwl_tas_data);
 IWL_BIOS_TABLE_LOADER_DATA(pwr_limit, u64);
 IWL_BIOS_TABLE_LOADER_DATA(mcc, char);
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/regulatory.h b/drivers/net/wireless/intel/iwlwifi/fw/regulatory.h
index 53693314d505..46d19101b741 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/regulatory.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/regulatory.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
- * Copyright (C) 2023-2024 Intel Corporation
+ * Copyright (C) 2023-2025 Intel Corporation
  */
 
 #ifndef __fw_regulatory_h__
@@ -236,6 +236,7 @@ bool iwl_puncturing_is_allowed_in_bios(u32 puncturing, u16 mcc);
 #define IWL_DSBR_PERMANENT_URM_MASK	BIT(9)
 
 int iwl_bios_get_dsbr(struct iwl_fw_runtime *fwrt, u32 *value);
+int iwl_bios_get_phy_filters(struct iwl_fw_runtime *fwrt);
 
 static inline void iwl_bios_setup_step(struct iwl_trans *trans,
 				       struct iwl_fw_runtime *fwrt)
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
index 5753d95986cd..a56b96003650 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/runtime.h
@@ -185,9 +185,7 @@ struct iwl_fw_runtime {
 	struct iwl_mcc_allowed_ap_type_cmd uats_table;
 	bool uats_valid;
 	u8 uefi_tables_lock_status;
-#ifdef CONFIG_ACPI
 	struct iwl_phy_specific_cfg phy_filters;
-#endif
 };
 
 void iwl_fw_runtime_init(struct iwl_fw_runtime *fwrt, struct iwl_trans *trans,
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c
index 386aadbce2a2..b0f4c217b2a5 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c
@@ -810,3 +810,31 @@ out:
 	kfree(data);
 	return ret;
 }
+
+int iwl_uefi_get_phy_filters(struct iwl_fw_runtime *fwrt)
+{
+	struct uefi_cnv_wpfc_data *data __free(kfree);
+	struct iwl_phy_specific_cfg *filters = &fwrt->phy_filters;
+
+	data = iwl_uefi_get_verified_variable(fwrt->trans, IWL_UEFI_WPFC_NAME,
+					      "WPFC", sizeof(*data), NULL);
+	if (IS_ERR(data))
+		return -EINVAL;
+
+	if (data->revision != 0) {
+		IWL_DEBUG_RADIO(fwrt, "Unsupported UEFI WPFC revision:%d\n",
+			data->revision);
+		return -EINVAL;
+	}
+
+	BUILD_BUG_ON(ARRAY_SIZE(filters->filter_cfg_chains) !=
+		     ARRAY_SIZE(data->chains));
+
+	for (int i = 0; i < ARRAY_SIZE(filters->filter_cfg_chains); i++) {
+		filters->filter_cfg_chains[i] = cpu_to_le32(data->chains[i]);
+		IWL_DEBUG_RADIO(fwrt, "WPFC: chain %d: %u\n", i, data->chains[i]);
+	}
+
+	IWL_DEBUG_RADIO(fwrt, "Loaded WPFC config from UEFI\n");
+	return 0;
+}
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/uefi.h b/drivers/net/wireless/intel/iwlwifi/fw/uefi.h
index eb3c05417da3..37d2ced03ce1 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/uefi.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/uefi.h
@@ -24,6 +24,7 @@
 #define IWL_UEFI_WBEM_NAME		L"UefiCnvWlanWBEM"
 #define IWL_UEFI_PUNCTURING_NAME	L"UefiCnvWlanPuncturing"
 #define IWL_UEFI_DSBR_NAME		L"UefiCnvCommonDSBR"
+#define IWL_UEFI_WPFC_NAME		L"WPFC"
 
 
 #define IWL_SGOM_MAP_SIZE		339
@@ -230,6 +231,18 @@ struct uefi_cnv_wlan_dsbr_data {
 	u32 config;
 } __packed;
 
+/**
+ * struct uefi_cnv_wpfc_data - BIOS Wi-Fi PHY filter Configuration
+ * @revision: the revision of the table
+ * @chains: configuration of each of the chains (a-d)
+ *
+ * specific PHY filter configuration
+ */
+struct uefi_cnv_wpfc_data {
+	u8 revision;
+	u32 chains[4];
+} __packed;
+
 /*
  * This is known to be broken on v4.19 and to work on v5.4.  Until we
  * figure out why this is the case and how to make it work, simply
@@ -262,6 +275,7 @@ int iwl_uefi_get_uats_table(struct iwl_trans *trans,
 			    struct iwl_fw_runtime *fwrt);
 int iwl_uefi_get_puncturing(struct iwl_fw_runtime *fwrt);
 int iwl_uefi_get_dsbr(struct iwl_fw_runtime *fwrt, u32 *value);
+int iwl_uefi_get_phy_filters(struct iwl_fw_runtime *fwrt);
 #else /* CONFIG_EFI */
 static inline void *iwl_uefi_get_pnvm(struct iwl_trans *trans, size_t *len)
 {
@@ -370,5 +384,10 @@ int iwl_uefi_get_dsbr(struct iwl_fw_runtime *fwrt, u32 *value)
 {
 	return -ENOENT;
 }
+
+static inline int iwl_uefi_get_phy_filters(struct iwl_fw_runtime *fwrt)
+{
+	return -ENOENT;
+}
 #endif /* CONFIG_EFI */
 #endif /* __iwl_fw_uefi__ */