diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/pcie/trans.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 67 |
1 files changed, 44 insertions, 23 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c index 59e14b398295..eacbbdbffb5e 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2007-2015, 2018-2022 Intel Corporation + * Copyright (C) 2007-2015, 2018-2023 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ @@ -131,13 +131,15 @@ static int iwl_trans_pcie_sw_reset(struct iwl_trans *trans, bool retake_ownership) { /* Reset entire device - do controller reset (results in SHRD_HW_RST) */ - if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) + if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) { iwl_set_bit(trans, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_SW_RESET); - else + usleep_range(10000, 20000); + } else { iwl_set_bit(trans, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); - usleep_range(5000, 6000); + usleep_range(5000, 6000); + } if (retake_ownership) return iwl_pcie_prepare_card_hw(trans); @@ -161,7 +163,7 @@ static void iwl_pcie_free_fw_monitor(struct iwl_trans *trans) } static void iwl_pcie_alloc_fw_monitor_block(struct iwl_trans *trans, - u8 max_power, u8 min_power) + u8 max_power) { struct iwl_dram_data *fw_mon = &trans->dbg.fw_mon; void *block = NULL; @@ -169,10 +171,13 @@ static void iwl_pcie_alloc_fw_monitor_block(struct iwl_trans *trans, u32 size = 0; u8 power; - if (fw_mon->size) + if (fw_mon->size) { + memset(fw_mon->block, 0, fw_mon->size); return; + } - for (power = max_power; power >= min_power; power--) { + /* need at least 2 KiB, so stop at 11 */ + for (power = max_power; power >= 11; power--) { size = BIT(power); block = dma_alloc_coherent(trans->dev, size, &physical, GFP_KERNEL | __GFP_NOWARN); @@ -213,10 +218,7 @@ void iwl_pcie_alloc_fw_monitor(struct iwl_trans *trans, u8 max_power) max_power)) return; - if (trans->dbg.fw_mon.size) - return; - - iwl_pcie_alloc_fw_monitor_block(trans, max_power, 11); + iwl_pcie_alloc_fw_monitor_block(trans, max_power); } static u32 iwl_trans_pcie_read_shr(struct iwl_trans *trans, u32 reg) @@ -475,7 +477,7 @@ void iwl_pcie_apm_stop_master(struct iwl_trans *trans) CSR_GP_CNTRL_REG_FLAG_BUS_MASTER_DISABLE_STATUS, CSR_GP_CNTRL_REG_FLAG_BUS_MASTER_DISABLE_STATUS, 100); - msleep(100); + usleep_range(10000, 20000); } else { iwl_set_bit(trans, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER); @@ -1786,7 +1788,7 @@ static int iwl_trans_pcie_clear_persistence_bit(struct iwl_trans *trans) } hpm = iwl_read_umac_prph_no_grab(trans, HPM_DEBUG); - if (hpm != 0xa5a5a5a0 && (hpm & PERSISTENCE_BIT)) { + if (!iwl_trans_is_hw_error_value(hpm) && (hpm & PERSISTENCE_BIT)) { u32 wprot_val = iwl_read_umac_prph_no_grab(trans, wprot); if (wprot_val & PREG_WFPM_ACCESS) { @@ -1993,6 +1995,29 @@ static void iwl_trans_pcie_configure(struct iwl_trans *trans, trans_pcie->fw_reset_handshake = trans_cfg->fw_reset_handshake; } +void iwl_trans_pcie_free_pnvm_dram_regions(struct iwl_dram_regions *dram_regions, + struct device *dev) +{ + u8 i; + struct iwl_dram_data *desc_dram = &dram_regions->prph_scratch_mem_desc; + + /* free DRAM payloads */ + for (i = 0; i < dram_regions->n_regions; i++) { + dma_free_coherent(dev, dram_regions->drams[i].size, + dram_regions->drams[i].block, + dram_regions->drams[i].physical); + } + dram_regions->n_regions = 0; + + /* free DRAM addresses array */ + if (desc_dram->block) { + dma_free_coherent(dev, desc_dram->size, + desc_dram->block, + desc_dram->physical); + } + memset(desc_dram, 0, sizeof(*desc_dram)); +} + void iwl_trans_pcie_free(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); @@ -2025,16 +2050,10 @@ void iwl_trans_pcie_free(struct iwl_trans *trans) iwl_pcie_free_fw_monitor(trans); - if (trans_pcie->pnvm_dram.size) - dma_free_coherent(trans->dev, trans_pcie->pnvm_dram.size, - trans_pcie->pnvm_dram.block, - trans_pcie->pnvm_dram.physical); - - if (trans_pcie->reduce_power_dram.size) - dma_free_coherent(trans->dev, - trans_pcie->reduce_power_dram.size, - trans_pcie->reduce_power_dram.block, - trans_pcie->reduce_power_dram.physical); + iwl_trans_pcie_free_pnvm_dram_regions(&trans_pcie->pnvm_data, + trans->dev); + iwl_trans_pcie_free_pnvm_dram_regions(&trans_pcie->reduced_tables_data, + trans->dev); mutex_destroy(&trans_pcie->mutex); iwl_trans_free(trans); @@ -3534,7 +3553,9 @@ static const struct iwl_trans_ops trans_ops_pcie_gen2 = { .txq_free = iwl_txq_dyn_free, .wait_txq_empty = iwl_trans_pcie_wait_txq_empty, .rxq_dma_data = iwl_trans_pcie_rxq_dma_data, + .load_pnvm = iwl_trans_pcie_ctx_info_gen3_load_pnvm, .set_pnvm = iwl_trans_pcie_ctx_info_gen3_set_pnvm, + .load_reduce_power = iwl_trans_pcie_ctx_info_gen3_load_reduce_power, .set_reduce_power = iwl_trans_pcie_ctx_info_gen3_set_reduce_power, #ifdef CONFIG_IWLWIFI_DEBUGFS .debugfs_cleanup = iwl_trans_pcie_debugfs_cleanup, |