From: Or Ron Date: Wed, 11 Jun 2025 19:26:24 +0000 (+0300) Subject: wifi: iwlwifi: phy periph read - flow modification X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7a7cb2eb54592b8fa8e59740fb61603c9f3f16bf;p=thirdparty%2Fkernel%2Fstable.git wifi: iwlwifi: phy periph read - flow modification If for some reason the reading of phy prph fails, there is no reason to keep reading them. Check the status abd break early in such case. Signed-off-by: Or Ron Reviewed-by: Eilon Rinat Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20250611222325.124ce6613edd.Ic1aad57cc6163f0551a3dafae048434f4a2fe7f5@changeid --- diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c index 95a732efce45..98ad020014d9 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c @@ -1106,6 +1106,7 @@ static int iwl_dump_ini_prph_phy_iter_common(struct iwl_fw_runtime *fwrt, u32 prph_val; u32 dphy_state; u32 dphy_addr; + u32 prph_stts; int i; range->internal_base_addr = cpu_to_le32(addr); @@ -1133,6 +1134,21 @@ static int iwl_dump_ini_prph_phy_iter_common(struct iwl_fw_runtime *fwrt, iwl_write_prph_no_grab(fwrt->trans, indirect_wr_addr, WMAL_INDRCT_CMD(addr + i)); + + if (fwrt->trans->info.hw_rf_id != IWL_CFG_RF_TYPE_JF1 && + fwrt->trans->info.hw_rf_id != IWL_CFG_RF_TYPE_JF2 && + fwrt->trans->info.hw_rf_id != IWL_CFG_RF_TYPE_HR1 && + fwrt->trans->info.hw_rf_id != IWL_CFG_RF_TYPE_HR2) { + udelay(2); + prph_stts = iwl_read_prph_no_grab(fwrt->trans, + WMAL_MRSPF_STTS); + + /* Abort dump if status is 0xA5A5A5A2 or FIFO1 empty */ + if (prph_stts == WMAL_TIMEOUT_VAL || + !WMAL_MRSPF_STTS_IS_FIFO1_NOT_EMPTY(prph_stts)) + break; + } + prph_val = iwl_read_prph_no_grab(fwrt->trans, indirect_rd_addr); *val++ = cpu_to_le32(prph_val); diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-prph.h b/drivers/net/wireless/intel/iwlwifi/iwl-prph.h index 23b2009fbb28..a7214ddcfaf5 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-prph.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-prph.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* - * Copyright (C) 2005-2014, 2018-2024 Intel Corporation + * Copyright (C) 2005-2014, 2018-2025 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016 Intel Deutschland GmbH */ @@ -514,6 +514,14 @@ enum { #define WMAL_INDRCT_CMD(addr) \ ((WMAL_CMD_READ_BURST_ACCESS << WMAL_INDRCT_RD_CMD1_OPMOD_POS) | \ ((addr) & WMAL_INDRCT_RD_CMD1_BYTE_ADDRESS_MSK)) +#define WMAL_MRSPF_STTS 0xADFC24 +#define WMAL_MRSPF_STTS_FIFO1_NOT_EMPTY_POS 15 +#define WMAL_MRSPF_STTS_FIFO1_NOT_EMPTY_MSK 0x8000 +#define WMAL_TIMEOUT_VAL 0xA5A5A5A2 +#define WMAL_MRSPF_STTS_IS_FIFO1_NOT_EMPTY(val) \ + (((val) >> (WMAL_MRSPF_STTS_FIFO1_NOT_EMPTY_POS)) & \ + ((WMAL_MRSPF_STTS_FIFO1_NOT_EMPTY_MSK) >> \ + (WMAL_MRSPF_STTS_FIFO1_NOT_EMPTY_POS))) #define WFPM_LMAC1_PS_CTL_RW 0xA03380 #define WFPM_LMAC2_PS_CTL_RW 0xA033C0