1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2017 Intel Deutschland GmbH
4 * Copyright (C) 2019-2020 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/soc.h"
12 #include "fw/api/commands.h"
13 #include "fw/api/rx.h"
14 #include "fw/api/datapath.h"
15
iwl_fw_runtime_init(struct iwl_fw_runtime * fwrt,struct iwl_trans * trans,const struct iwl_fw * fw,const struct iwl_fw_runtime_ops * ops,void * ops_ctx,struct dentry * dbgfs_dir)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 struct dentry *dbgfs_dir)
20 {
21 int i;
22
23 memset(fwrt, 0, sizeof(*fwrt));
24 fwrt->trans = trans;
25 fwrt->fw = fw;
26 fwrt->dev = trans->dev;
27 fwrt->dump.conf = FW_DBG_INVALID;
28 fwrt->ops = ops;
29 fwrt->ops_ctx = ops_ctx;
30 for (i = 0; i < IWL_FW_RUNTIME_DUMP_WK_NUM; i++) {
31 fwrt->dump.wks[i].idx = i;
32 INIT_DELAYED_WORK(&fwrt->dump.wks[i].wk, iwl_fw_error_dump_wk);
33 }
34 iwl_fwrt_dbgfs_register(fwrt, dbgfs_dir);
35 }
36 IWL_EXPORT_SYMBOL(iwl_fw_runtime_init);
37
iwl_fw_runtime_suspend(struct iwl_fw_runtime * fwrt)38 void iwl_fw_runtime_suspend(struct iwl_fw_runtime *fwrt)
39 {
40 iwl_fw_suspend_timestamp(fwrt);
41 iwl_dbg_tlv_time_point(fwrt, IWL_FW_INI_TIME_POINT_HOST_D3_START, NULL);
42 }
43 IWL_EXPORT_SYMBOL(iwl_fw_runtime_suspend);
44
iwl_fw_runtime_resume(struct iwl_fw_runtime * fwrt)45 void iwl_fw_runtime_resume(struct iwl_fw_runtime *fwrt)
46 {
47 iwl_dbg_tlv_time_point(fwrt, IWL_FW_INI_TIME_POINT_HOST_D3_END, NULL);
48 iwl_fw_resume_timestamp(fwrt);
49 }
50 IWL_EXPORT_SYMBOL(iwl_fw_runtime_resume);
51
52 /* set device type and latency */
iwl_set_soc_latency(struct iwl_fw_runtime * fwrt)53 int iwl_set_soc_latency(struct iwl_fw_runtime *fwrt)
54 {
55 struct iwl_soc_configuration_cmd cmd = {};
56 struct iwl_host_cmd hcmd = {
57 .id = iwl_cmd_id(SOC_CONFIGURATION_CMD, SYSTEM_GROUP, 0),
58 .data[0] = &cmd,
59 .len[0] = sizeof(cmd),
60 };
61 int ret;
62
63 /*
64 * In VER_1 of this command, the discrete value is considered
65 * an integer; In VER_2, it's a bitmask. Since we have only 2
66 * values in VER_1, this is backwards-compatible with VER_2,
67 * as long as we don't set any other bits.
68 */
69 if (!fwrt->trans->trans_cfg->integrated)
70 cmd.flags = cpu_to_le32(SOC_CONFIG_CMD_FLAGS_DISCRETE);
71
72 BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_NONE !=
73 SOC_FLAGS_LTR_APPLY_DELAY_NONE);
74 BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_200US !=
75 SOC_FLAGS_LTR_APPLY_DELAY_200);
76 BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_2500US !=
77 SOC_FLAGS_LTR_APPLY_DELAY_2500);
78 BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_1820US !=
79 SOC_FLAGS_LTR_APPLY_DELAY_1820);
80
81 if (fwrt->trans->trans_cfg->ltr_delay != IWL_CFG_TRANS_LTR_DELAY_NONE &&
82 !WARN_ON(!fwrt->trans->trans_cfg->integrated))
83 cmd.flags |= le32_encode_bits(fwrt->trans->trans_cfg->ltr_delay,
84 SOC_FLAGS_LTR_APPLY_DELAY_MASK);
85
86 if (iwl_fw_lookup_cmd_ver(fwrt->fw, IWL_ALWAYS_LONG_GROUP,
87 SCAN_REQ_UMAC,
88 IWL_FW_CMD_VER_UNKNOWN) >= 2 &&
89 fwrt->trans->trans_cfg->low_latency_xtal)
90 cmd.flags |= cpu_to_le32(SOC_CONFIG_CMD_FLAGS_LOW_LATENCY);
91
92 cmd.latency = cpu_to_le32(fwrt->trans->trans_cfg->xtal_latency);
93
94 ret = iwl_trans_send_cmd(fwrt->trans, &hcmd);
95 if (ret)
96 IWL_ERR(fwrt, "Failed to set soc latency: %d\n", ret);
97 return ret;
98 }
99 IWL_EXPORT_SYMBOL(iwl_set_soc_latency);
100
iwl_configure_rxq(struct iwl_fw_runtime * fwrt)101 int iwl_configure_rxq(struct iwl_fw_runtime *fwrt)
102 {
103 int i, num_queues, size, ret;
104 struct iwl_rfh_queue_config *cmd;
105 struct iwl_host_cmd hcmd = {
106 .id = WIDE_ID(DATA_PATH_GROUP, RFH_QUEUE_CONFIG_CMD),
107 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
108 };
109
110 /*
111 * The default queue is configured via context info, so if we
112 * have a single queue, there's nothing to do here.
113 */
114 if (fwrt->trans->num_rx_queues == 1)
115 return 0;
116
117 if (fwrt->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_22000)
118 return 0;
119
120 /* skip the default queue */
121 num_queues = fwrt->trans->num_rx_queues - 1;
122
123 size = struct_size(cmd, data, num_queues);
124
125 cmd = kzalloc(size, GFP_KERNEL);
126 if (!cmd)
127 return -ENOMEM;
128
129 cmd->num_queues = num_queues;
130
131 for (i = 0; i < num_queues; i++) {
132 struct iwl_trans_rxq_dma_data data;
133
134 cmd->data[i].q_num = i + 1;
135 iwl_trans_get_rxq_dma_data(fwrt->trans, i + 1, &data);
136
137 cmd->data[i].fr_bd_cb = cpu_to_le64(data.fr_bd_cb);
138 cmd->data[i].urbd_stts_wrptr =
139 cpu_to_le64(data.urbd_stts_wrptr);
140 cmd->data[i].ur_bd_cb = cpu_to_le64(data.ur_bd_cb);
141 cmd->data[i].fr_bd_wid = cpu_to_le32(data.fr_bd_wid);
142 }
143
144 hcmd.data[0] = cmd;
145 hcmd.len[0] = size;
146
147 ret = iwl_trans_send_cmd(fwrt->trans, &hcmd);
148
149 kfree(cmd);
150
151 if (ret)
152 IWL_ERR(fwrt, "Failed to configure RX queues: %d\n", ret);
153
154 return ret;
155 }
156 IWL_EXPORT_SYMBOL(iwl_configure_rxq);
157
