init.c

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    1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
    2 /*
    3  * Copyright (C) 2017 Intel Deutschland GmbH
    4  * Copyright (C) 2019-2021 Intel Corporation
    5  */
    6 #include "iwl-drv.h"
    7 #include "runtime.h"
    8 #include "dbg.h"
    9 #include "debugfs.h"
   10 
   11 #include "fw/api/system.h"
   12 #include "fw/api/commands.h"
   13 #include "fw/api/rx.h"
   14 #include "fw/api/datapath.h"
   15 
   16 void iwl_fw_runtime_init(struct iwl_fw_runtime *fwrt, struct iwl_trans *trans,
   17                         const struct iwl_fw *fw,
   18                         const struct iwl_fw_runtime_ops *ops, void *ops_ctx,
   19                         const struct iwl_dump_sanitize_ops *sanitize_ops,
   20                         void *sanitize_ctx,
   21                         struct dentry *dbgfs_dir)
   22 {
   23         int i;
   24 
   25         memset(fwrt, 0, sizeof(*fwrt));
   26         fwrt->trans = trans;
   27         fwrt->fw = fw;
   28         fwrt->dev = trans->dev;
   29         fwrt->dump.conf = FW_DBG_INVALID;
   30         fwrt->ops = ops;
   31         fwrt->sanitize_ops = sanitize_ops;
   32         fwrt->sanitize_ctx = sanitize_ctx;
   33         fwrt->ops_ctx = ops_ctx;
   34         for (i = 0; i < IWL_FW_RUNTIME_DUMP_WK_NUM; i++) {
   35                 fwrt->dump.wks[i].idx = i;
   36                 INIT_DELAYED_WORK(&fwrt->dump.wks[i].wk, iwl_fw_error_dump_wk);
   37         }
   38         iwl_fwrt_dbgfs_register(fwrt, dbgfs_dir);
   39 }
   40 IWL_EXPORT_SYMBOL(iwl_fw_runtime_init);
   41 
   42 void iwl_fw_runtime_suspend(struct iwl_fw_runtime *fwrt)
   43 {
   44         iwl_fw_suspend_timestamp(fwrt);
   45         iwl_dbg_tlv_time_point(fwrt, IWL_FW_INI_TIME_POINT_HOST_D3_START, NULL);
   46 }
   47 IWL_EXPORT_SYMBOL(iwl_fw_runtime_suspend);
   48 
   49 void iwl_fw_runtime_resume(struct iwl_fw_runtime *fwrt)
   50 {
   51         iwl_dbg_tlv_time_point(fwrt, IWL_FW_INI_TIME_POINT_HOST_D3_END, NULL);
   52         iwl_fw_resume_timestamp(fwrt);
   53 }
   54 IWL_EXPORT_SYMBOL(iwl_fw_runtime_resume);
   55 
   56 /* set device type and latency */
   57 int iwl_set_soc_latency(struct iwl_fw_runtime *fwrt)
   58 {
   59         struct iwl_soc_configuration_cmd cmd = {};
   60         struct iwl_host_cmd hcmd = {
   61                 .id = WIDE_ID(SYSTEM_GROUP, SOC_CONFIGURATION_CMD),
   62                 .data[0] = &cmd,
   63                 .len[0] = sizeof(cmd),
   64         };
   65         int ret;
   66 
   67         /*
   68          * In VER_1 of this command, the discrete value is considered
   69          * an integer; In VER_2, it's a bitmask.  Since we have only 2
   70          * values in VER_1, this is backwards-compatible with VER_2,
   71          * as long as we don't set any other bits.
   72          */
   73         if (!fwrt->trans->trans_cfg->integrated)
   74                 cmd.flags = cpu_to_le32(SOC_CONFIG_CMD_FLAGS_DISCRETE);
   75 
   76         BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_NONE !=
   77                      SOC_FLAGS_LTR_APPLY_DELAY_NONE);
   78         BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_200US !=
   79                      SOC_FLAGS_LTR_APPLY_DELAY_200);
   80         BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_2500US !=
   81                      SOC_FLAGS_LTR_APPLY_DELAY_2500);
   82         BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_1820US !=
   83                      SOC_FLAGS_LTR_APPLY_DELAY_1820);
   84 
   85         if (fwrt->trans->trans_cfg->ltr_delay != IWL_CFG_TRANS_LTR_DELAY_NONE &&
   86             !WARN_ON(!fwrt->trans->trans_cfg->integrated))
   87                 cmd.flags |= le32_encode_bits(fwrt->trans->trans_cfg->ltr_delay,
   88                                               SOC_FLAGS_LTR_APPLY_DELAY_MASK);
   89 
   90         if (iwl_fw_lookup_cmd_ver(fwrt->fw, SCAN_REQ_UMAC,
   91                                   IWL_FW_CMD_VER_UNKNOWN) >= 2 &&
   92             fwrt->trans->trans_cfg->low_latency_xtal)
   93                 cmd.flags |= cpu_to_le32(SOC_CONFIG_CMD_FLAGS_LOW_LATENCY);
   94 
   95         cmd.latency = cpu_to_le32(fwrt->trans->trans_cfg->xtal_latency);
   96 
   97         ret = iwl_trans_send_cmd(fwrt->trans, &hcmd);
   98         if (ret)
   99                 IWL_ERR(fwrt, "Failed to set soc latency: %d\n", ret);
  100         return ret;
  101 }
  102 IWL_EXPORT_SYMBOL(iwl_set_soc_latency);
  103 
  104 int iwl_configure_rxq(struct iwl_fw_runtime *fwrt)
  105 {
  106         int i, num_queues, size, ret;
  107         struct iwl_rfh_queue_config *cmd;
  108         struct iwl_host_cmd hcmd = {
  109                 .id = WIDE_ID(DATA_PATH_GROUP, RFH_QUEUE_CONFIG_CMD),
  110                 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
  111         };
  112 
  113         /*
  114          * The default queue is configured via context info, so if we
  115          * have a single queue, there's nothing to do here.
  116          */
  117         if (fwrt->trans->num_rx_queues == 1)
  118                 return 0;
  119 
  120         if (fwrt->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_22000)
  121                 return 0;
  122 
  123         /* skip the default queue */
  124         num_queues = fwrt->trans->num_rx_queues - 1;
  125 
  126         size = struct_size(cmd, data, num_queues);
  127 
  128         cmd = kzalloc(size, GFP_KERNEL);
  129         if (!cmd)
  130                 return -ENOMEM;
  131 
  132         cmd->num_queues = num_queues;
  133 
  134         for (i = 0; i < num_queues; i++) {
  135                 struct iwl_trans_rxq_dma_data data;
  136 
  137                 cmd->data[i].q_num = i + 1;
  138                 iwl_trans_get_rxq_dma_data(fwrt->trans, i + 1, &data);
  139 
  140                 cmd->data[i].fr_bd_cb = cpu_to_le64(data.fr_bd_cb);
  141                 cmd->data[i].urbd_stts_wrptr =
  142                         cpu_to_le64(data.urbd_stts_wrptr);
  143                 cmd->data[i].ur_bd_cb = cpu_to_le64(data.ur_bd_cb);
  144                 cmd->data[i].fr_bd_wid = cpu_to_le32(data.fr_bd_wid);
  145         }
  146 
  147         hcmd.data[0] = cmd;
  148         hcmd.len[0] = size;
  149 
  150         ret = iwl_trans_send_cmd(fwrt->trans, &hcmd);
  151 
  152         kfree(cmd);
  153 
  154         if (ret)
  155                 IWL_ERR(fwrt, "Failed to configure RX queues: %d\n", ret);
  156 
  157         return ret;
  158 }
  159 IWL_EXPORT_SYMBOL(iwl_configure_rxq);

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FreeBSD/Linux Kernel Cross Reference sys/contrib/dev/iwlwifi/fw/init.c

FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/iwlwifi/fw/init.c