diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/iwl-io.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-io.c | 143 |
1 files changed, 28 insertions, 115 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-io.c b/drivers/net/wireless/intel/iwlwifi/iwl-io.c index 253eac4cbf59..b1944584c693 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-io.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-io.c @@ -1,9 +1,8 @@ // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* - * Copyright (C) 2003-2014, 2018-2021 Intel Corporation + * Copyright (C) 2003-2014, 2018-2022, 2024-2025 Intel Corporation * Copyright (C) 2015-2016 Intel Deutschland GmbH */ -#include <linux/delay.h> #include <linux/device.h> #include <linux/export.h> @@ -13,6 +12,7 @@ #include "iwl-debug.h" #include "iwl-prph.h" #include "iwl-fh.h" +#include "pcie/gen1_2/internal.h" void iwl_write8(struct iwl_trans *trans, u32 ofs, u8 val) { @@ -47,34 +47,34 @@ IWL_EXPORT_SYMBOL(iwl_read32); #define IWL_POLL_INTERVAL 10 /* microseconds */ -int iwl_poll_bit(struct iwl_trans *trans, u32 addr, - u32 bits, u32 mask, int timeout) +int iwl_poll_bits_mask(struct iwl_trans *trans, u32 addr, + u32 bits, u32 mask, int timeout) { int t = 0; do { if ((iwl_read32(trans, addr) & mask) == (bits & mask)) - return t; + return 0; udelay(IWL_POLL_INTERVAL); t += IWL_POLL_INTERVAL; } while (t < timeout); return -ETIMEDOUT; } -IWL_EXPORT_SYMBOL(iwl_poll_bit); +IWL_EXPORT_SYMBOL(iwl_poll_bits_mask); u32 iwl_read_direct32(struct iwl_trans *trans, u32 reg) { - u32 value = 0x5a5a5a5a; - if (iwl_trans_grab_nic_access(trans)) { - value = iwl_read32(trans, reg); + u32 value = iwl_read32(trans, reg); + iwl_trans_release_nic_access(trans); + return value; } - return value; + /* return as if we have a HW timeout/failure */ + return 0x5a5a5a5a; } -IWL_EXPORT_SYMBOL(iwl_read_direct32); void iwl_write_direct32(struct iwl_trans *trans, u32 reg, u32 value) { @@ -92,7 +92,6 @@ void iwl_write_direct64(struct iwl_trans *trans, u64 reg, u64 value) iwl_trans_release_nic_access(trans); } } -IWL_EXPORT_SYMBOL(iwl_write_direct64); int iwl_poll_direct_bit(struct iwl_trans *trans, u32 addr, u32 mask, int timeout) @@ -108,7 +107,6 @@ int iwl_poll_direct_bit(struct iwl_trans *trans, u32 addr, u32 mask, return -ETIMEDOUT; } -IWL_EXPORT_SYMBOL(iwl_poll_direct_bit); u32 iwl_read_prph_no_grab(struct iwl_trans *trans, u32 ofs) { @@ -116,14 +114,12 @@ u32 iwl_read_prph_no_grab(struct iwl_trans *trans, u32 ofs) trace_iwlwifi_dev_ioread_prph32(trans->dev, ofs, val); return val; } -IWL_EXPORT_SYMBOL(iwl_read_prph_no_grab); void iwl_write_prph_no_grab(struct iwl_trans *trans, u32 ofs, u32 val) { trace_iwlwifi_dev_iowrite_prph32(trans->dev, ofs, val); iwl_trans_write_prph(trans, ofs, val); } -IWL_EXPORT_SYMBOL(iwl_write_prph_no_grab); void iwl_write_prph64_no_grab(struct iwl_trans *trans, u64 ofs, u64 val) { @@ -131,17 +127,19 @@ void iwl_write_prph64_no_grab(struct iwl_trans *trans, u64 ofs, u64 val) iwl_write_prph_no_grab(trans, ofs, val & 0xffffffff); iwl_write_prph_no_grab(trans, ofs + 4, val >> 32); } -IWL_EXPORT_SYMBOL(iwl_write_prph64_no_grab); u32 iwl_read_prph(struct iwl_trans *trans, u32 ofs) { - u32 val = 0x5a5a5a5a; - if (iwl_trans_grab_nic_access(trans)) { - val = iwl_read_prph_no_grab(trans, ofs); + u32 val = iwl_read_prph_no_grab(trans, ofs); + iwl_trans_release_nic_access(trans); + + return val; } - return val; + + /* return as if we have a HW timeout/failure */ + return 0x5a5a5a5a; } IWL_EXPORT_SYMBOL(iwl_read_prph); @@ -162,7 +160,7 @@ int iwl_poll_prph_bit(struct iwl_trans *trans, u32 addr, do { if ((iwl_read_prph(trans, addr) & mask) == (bits & mask)) - return t; + return 0; udelay(IWL_POLL_INTERVAL); t += IWL_POLL_INTERVAL; } while (t < timeout); @@ -207,13 +205,13 @@ IWL_EXPORT_SYMBOL(iwl_clear_bits_prph); void iwl_force_nmi(struct iwl_trans *trans) { - if (trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000) + if (trans->mac_cfg->device_family < IWL_DEVICE_FAMILY_9000) iwl_write_prph_delay(trans, DEVICE_SET_NMI_REG, DEVICE_SET_NMI_VAL_DRV, 1); - else if (trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210) + else if (trans->mac_cfg->device_family < IWL_DEVICE_FAMILY_AX210) iwl_write_umac_prph(trans, UREG_NIC_SET_NMI_DRIVER, UREG_NIC_SET_NMI_DRIVER_NMI_FROM_DRIVER); - else if (trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_BZ) + else if (trans->mac_cfg->device_family < IWL_DEVICE_FAMILY_BZ) iwl_write_umac_prph(trans, UREG_DOORBELL_TO_ISR6, UREG_DOORBELL_TO_ISR6_NMI_BIT); else @@ -256,7 +254,7 @@ struct reg { static int iwl_dump_rfh(struct iwl_trans *trans, char **buf) { int i, q; - int num_q = trans->num_rx_queues; + int num_q = trans->info.num_rxqs; static const u32 rfh_tbl[] = { RFH_RXF_DMA_CFG, RFH_GEN_CFG, @@ -364,7 +362,7 @@ int iwl_dump_fh(struct iwl_trans *trans, char **buf) FH_TSSR_TX_ERROR_REG }; - if (trans->trans_cfg->mq_rx_supported) + if (trans->mac_cfg->mq_rx_supported) return iwl_dump_rfh(trans, buf); #ifdef CONFIG_IWLWIFI_DEBUGFS @@ -398,96 +396,11 @@ int iwl_dump_fh(struct iwl_trans *trans, char **buf) return 0; } -#define IWL_HOST_MON_BLOCK_PEMON 0x00 -#define IWL_HOST_MON_BLOCK_HIPM 0x22 - -#define IWL_HOST_MON_BLOCK_PEMON_VEC0 0x00 -#define IWL_HOST_MON_BLOCK_PEMON_VEC1 0x01 -#define IWL_HOST_MON_BLOCK_PEMON_WFPM 0x06 - -static void iwl_dump_host_monitor_block(struct iwl_trans *trans, - u32 block, u32 vec, u32 iter) +int iwl_trans_activate_nic(struct iwl_trans *trans) { - int i; - - IWL_ERR(trans, "Host monitor block 0x%x vector 0x%x\n", block, vec); - iwl_write32(trans, CSR_MONITOR_CFG_REG, (block << 8) | vec); - for (i = 0; i < iter; i++) - IWL_ERR(trans, " value [iter %d]: 0x%08x\n", - i, iwl_read32(trans, CSR_MONITOR_STATUS_REG)); -} - -static void iwl_dump_host_monitor(struct iwl_trans *trans) -{ - switch (trans->trans_cfg->device_family) { - case IWL_DEVICE_FAMILY_22000: - case IWL_DEVICE_FAMILY_AX210: - IWL_ERR(trans, "CSR_RESET = 0x%x\n", - iwl_read32(trans, CSR_RESET)); - iwl_dump_host_monitor_block(trans, IWL_HOST_MON_BLOCK_PEMON, - IWL_HOST_MON_BLOCK_PEMON_VEC0, 15); - iwl_dump_host_monitor_block(trans, IWL_HOST_MON_BLOCK_PEMON, - IWL_HOST_MON_BLOCK_PEMON_VEC1, 15); - iwl_dump_host_monitor_block(trans, IWL_HOST_MON_BLOCK_PEMON, - IWL_HOST_MON_BLOCK_PEMON_WFPM, 15); - iwl_dump_host_monitor_block(trans, IWL_HOST_MON_BLOCK_HIPM, - IWL_HOST_MON_BLOCK_PEMON_VEC0, 1); - break; - default: - /* not supported yet */ - return; - } -} - -int iwl_finish_nic_init(struct iwl_trans *trans) -{ - const struct iwl_cfg_trans_params *cfg_trans = trans->trans_cfg; - u32 poll_ready; - int err; - - if (cfg_trans->bisr_workaround) { - /* ensure the TOP FSM isn't still in previous reset */ - mdelay(2); - } - - /* - * Set "initialization complete" bit to move adapter from - * D0U* --> D0A* (powered-up active) state. - */ - if (cfg_trans->device_family >= IWL_DEVICE_FAMILY_BZ) { - iwl_set_bit(trans, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY | - CSR_GP_CNTRL_REG_FLAG_MAC_INIT); - poll_ready = CSR_GP_CNTRL_REG_FLAG_MAC_STATUS; - } else { - iwl_set_bit(trans, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_INIT_DONE); - poll_ready = CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY; - } - - if (cfg_trans->device_family == IWL_DEVICE_FAMILY_8000) - udelay(2); - - /* - * Wait for clock stabilization; once stabilized, access to - * device-internal resources is supported, e.g. iwl_write_prph() - * and accesses to uCode SRAM. - */ - err = iwl_poll_bit(trans, CSR_GP_CNTRL, poll_ready, poll_ready, 25000); - if (err < 0) { - IWL_DEBUG_INFO(trans, "Failed to wake NIC\n"); - - iwl_dump_host_monitor(trans); - } - - if (cfg_trans->bisr_workaround) { - /* ensure BISR shift has finished */ - udelay(200); - } - - return err < 0 ? err : 0; + return iwl_pcie_gen1_2_activate_nic(trans); } -IWL_EXPORT_SYMBOL(iwl_finish_nic_init); +IWL_EXPORT_SYMBOL(iwl_trans_activate_nic); void iwl_trans_sync_nmi_with_addr(struct iwl_trans *trans, u32 inta_addr, u32 sw_err_bit) @@ -522,5 +435,5 @@ void iwl_trans_sync_nmi_with_addr(struct iwl_trans *trans, u32 inta_addr, if (interrupts_enabled) iwl_trans_interrupts(trans, true); - iwl_trans_fw_error(trans, false); + iwl_trans_fw_error(trans, IWL_ERR_TYPE_NMI_FORCED); } |