Skylar Chang | c958bdd | 2018-01-25 17:10:41 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | #include "ipa_i.h" |
| 13 | #include <linux/dmapool.h> |
| 14 | #include <linux/delay.h> |
| 15 | #include <linux/mm.h> |
Skylar Chang | 6b41f8d | 2016-11-01 12:50:11 -0700 | [diff] [blame] | 16 | #include "ipa_qmi_service.h" |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 17 | |
| 18 | #define IPA_HOLB_TMR_DIS 0x0 |
Mohammed Javid | db111a3 | 2018-02-22 15:16:47 +0530 | [diff] [blame] | 19 | #define IPA_HOLB_TMR_EN 0x1 |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 20 | |
| 21 | #define IPA_HW_INTERFACE_WDI_VERSION 0x0001 |
| 22 | #define IPA_HW_WDI_RX_MBOX_START_INDEX 48 |
| 23 | #define IPA_HW_WDI_TX_MBOX_START_INDEX 50 |
| 24 | #define IPA_WDI_RING_ALIGNMENT 8 |
| 25 | |
| 26 | #define IPA_WDI_CONNECTED BIT(0) |
| 27 | #define IPA_WDI_ENABLED BIT(1) |
| 28 | #define IPA_WDI_RESUMED BIT(2) |
| 29 | #define IPA_UC_POLL_SLEEP_USEC 100 |
| 30 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 31 | struct ipa_wdi_res { |
| 32 | struct ipa_wdi_buffer_info *res; |
| 33 | unsigned int nents; |
| 34 | bool valid; |
| 35 | }; |
| 36 | |
| 37 | static struct ipa_wdi_res wdi_res[IPA_WDI_MAX_RES]; |
| 38 | |
| 39 | static void ipa3_uc_wdi_loaded_handler(void); |
| 40 | |
| 41 | /** |
| 42 | * enum ipa_hw_2_cpu_wdi_events - Values that represent HW event to be sent to |
| 43 | * CPU. |
| 44 | * @IPA_HW_2_CPU_EVENT_WDI_ERROR : Event to specify that HW detected an error |
| 45 | * in WDI |
| 46 | */ |
| 47 | enum ipa_hw_2_cpu_wdi_events { |
| 48 | IPA_HW_2_CPU_EVENT_WDI_ERROR = |
| 49 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 0), |
| 50 | }; |
| 51 | |
| 52 | /** |
| 53 | * enum ipa_hw_wdi_channel_states - Values that represent WDI channel state |
| 54 | * machine. |
| 55 | * @IPA_HW_WDI_CHANNEL_STATE_INITED_DISABLED : Channel is initialized but |
| 56 | * disabled |
| 57 | * @IPA_HW_WDI_CHANNEL_STATE_ENABLED_SUSPEND : Channel is enabled but in |
| 58 | * suspended state |
| 59 | * @IPA_HW_WDI_CHANNEL_STATE_RUNNING : Channel is running. Entered after |
| 60 | * SET_UP_COMMAND is processed successfully |
| 61 | * @IPA_HW_WDI_CHANNEL_STATE_ERROR : Channel is in error state |
| 62 | * @IPA_HW_WDI_CHANNEL_STATE_INVALID : Invalid state. Shall not be in use in |
| 63 | * operational scenario |
| 64 | * |
| 65 | * These states apply to both Tx and Rx paths. These do not reflect the |
| 66 | * sub-state the state machine may be in. |
| 67 | */ |
| 68 | enum ipa_hw_wdi_channel_states { |
| 69 | IPA_HW_WDI_CHANNEL_STATE_INITED_DISABLED = 1, |
| 70 | IPA_HW_WDI_CHANNEL_STATE_ENABLED_SUSPEND = 2, |
| 71 | IPA_HW_WDI_CHANNEL_STATE_RUNNING = 3, |
| 72 | IPA_HW_WDI_CHANNEL_STATE_ERROR = 4, |
| 73 | IPA_HW_WDI_CHANNEL_STATE_INVALID = 0xFF |
| 74 | }; |
| 75 | |
| 76 | /** |
| 77 | * enum ipa3_cpu_2_hw_commands - Values that represent the WDI commands from |
| 78 | * CPU |
| 79 | * @IPA_CPU_2_HW_CMD_WDI_TX_SET_UP : Command to set up WDI Tx Path |
| 80 | * @IPA_CPU_2_HW_CMD_WDI_RX_SET_UP : Command to set up WDI Rx Path |
| 81 | * @IPA_CPU_2_HW_CMD_WDI_RX_EXT_CFG : Provide extended config info for Rx path |
| 82 | * @IPA_CPU_2_HW_CMD_WDI_CH_ENABLE : Command to enable a channel |
| 83 | * @IPA_CPU_2_HW_CMD_WDI_CH_DISABLE : Command to disable a channel |
| 84 | * @IPA_CPU_2_HW_CMD_WDI_CH_SUSPEND : Command to suspend a channel |
| 85 | * @IPA_CPU_2_HW_CMD_WDI_CH_RESUME : Command to resume a channel |
| 86 | * @IPA_CPU_2_HW_CMD_WDI_TEAR_DOWN : Command to tear down WDI Tx/ Rx Path |
| 87 | */ |
| 88 | enum ipa_cpu_2_hw_wdi_commands { |
| 89 | IPA_CPU_2_HW_CMD_WDI_TX_SET_UP = |
| 90 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 0), |
| 91 | IPA_CPU_2_HW_CMD_WDI_RX_SET_UP = |
| 92 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 1), |
| 93 | IPA_CPU_2_HW_CMD_WDI_RX_EXT_CFG = |
| 94 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 2), |
| 95 | IPA_CPU_2_HW_CMD_WDI_CH_ENABLE = |
| 96 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 3), |
| 97 | IPA_CPU_2_HW_CMD_WDI_CH_DISABLE = |
| 98 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 4), |
| 99 | IPA_CPU_2_HW_CMD_WDI_CH_SUSPEND = |
| 100 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 5), |
| 101 | IPA_CPU_2_HW_CMD_WDI_CH_RESUME = |
| 102 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 6), |
| 103 | IPA_CPU_2_HW_CMD_WDI_TEAR_DOWN = |
| 104 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 7), |
| 105 | }; |
| 106 | |
| 107 | /** |
| 108 | * enum ipa_hw_2_cpu_cmd_resp_status - Values that represent WDI related |
| 109 | * command response status to be sent to CPU. |
| 110 | */ |
| 111 | enum ipa_hw_2_cpu_cmd_resp_status { |
| 112 | IPA_HW_2_CPU_WDI_CMD_STATUS_SUCCESS = |
| 113 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 0), |
| 114 | IPA_HW_2_CPU_MAX_WDI_TX_CHANNELS = |
| 115 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 1), |
| 116 | IPA_HW_2_CPU_WDI_CE_RING_OVERRUN_POSSIBILITY = |
| 117 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 2), |
| 118 | IPA_HW_2_CPU_WDI_CE_RING_SET_UP_FAILURE = |
| 119 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 3), |
| 120 | IPA_HW_2_CPU_WDI_CE_RING_PARAMS_UNALIGNED = |
| 121 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 4), |
| 122 | IPA_HW_2_CPU_WDI_COMP_RING_OVERRUN_POSSIBILITY = |
| 123 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 5), |
| 124 | IPA_HW_2_CPU_WDI_COMP_RING_SET_UP_FAILURE = |
| 125 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 6), |
| 126 | IPA_HW_2_CPU_WDI_COMP_RING_PARAMS_UNALIGNED = |
| 127 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 7), |
| 128 | IPA_HW_2_CPU_WDI_UNKNOWN_TX_CHANNEL = |
| 129 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 8), |
| 130 | IPA_HW_2_CPU_WDI_TX_INVALID_FSM_TRANSITION = |
| 131 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 9), |
| 132 | IPA_HW_2_CPU_WDI_TX_FSM_TRANSITION_ERROR = |
| 133 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 10), |
| 134 | IPA_HW_2_CPU_MAX_WDI_RX_CHANNELS = |
| 135 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 11), |
| 136 | IPA_HW_2_CPU_WDI_RX_RING_PARAMS_UNALIGNED = |
| 137 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 12), |
| 138 | IPA_HW_2_CPU_WDI_RX_RING_SET_UP_FAILURE = |
| 139 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 13), |
| 140 | IPA_HW_2_CPU_WDI_UNKNOWN_RX_CHANNEL = |
| 141 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 14), |
| 142 | IPA_HW_2_CPU_WDI_RX_INVALID_FSM_TRANSITION = |
| 143 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 15), |
| 144 | IPA_HW_2_CPU_WDI_RX_FSM_TRANSITION_ERROR = |
| 145 | FEATURE_ENUM_VAL(IPA_HW_FEATURE_WDI, 16), |
| 146 | }; |
| 147 | |
| 148 | /** |
| 149 | * enum ipa_hw_wdi_errors - WDI specific error types. |
| 150 | * @IPA_HW_WDI_ERROR_NONE : No error persists |
| 151 | * @IPA_HW_WDI_CHANNEL_ERROR : Error is specific to channel |
| 152 | */ |
| 153 | enum ipa_hw_wdi_errors { |
| 154 | IPA_HW_WDI_ERROR_NONE = 0, |
| 155 | IPA_HW_WDI_CHANNEL_ERROR = 1 |
| 156 | }; |
| 157 | |
| 158 | /** |
| 159 | * enum ipa_hw_wdi_ch_errors = List of WDI Channel error types. This is present |
| 160 | * in the event param. |
| 161 | * @IPA_HW_WDI_CH_ERR_NONE : No error persists |
| 162 | * @IPA_HW_WDI_TX_COMP_RING_WP_UPDATE_FAIL : Write pointer update failed in Tx |
| 163 | * Completion ring |
| 164 | * @IPA_HW_WDI_TX_FSM_ERROR : Error in the state machine transition |
| 165 | * @IPA_HW_WDI_TX_COMP_RE_FETCH_FAIL : Error while calculating num RE to bring |
| 166 | * @IPA_HW_WDI_CH_ERR_RESERVED : Reserved - Not available for CPU to use |
| 167 | */ |
| 168 | enum ipa_hw_wdi_ch_errors { |
| 169 | IPA_HW_WDI_CH_ERR_NONE = 0, |
| 170 | IPA_HW_WDI_TX_COMP_RING_WP_UPDATE_FAIL = 1, |
| 171 | IPA_HW_WDI_TX_FSM_ERROR = 2, |
| 172 | IPA_HW_WDI_TX_COMP_RE_FETCH_FAIL = 3, |
| 173 | IPA_HW_WDI_CH_ERR_RESERVED = 0xFF |
| 174 | }; |
| 175 | |
| 176 | /** |
| 177 | * struct IpaHwSharedMemWdiMapping_t - Structure referring to the common and |
| 178 | * WDI section of 128B shared memory located in offset zero of SW Partition in |
| 179 | * IPA SRAM. |
| 180 | * |
| 181 | * The shared memory is used for communication between IPA HW and CPU. |
| 182 | */ |
| 183 | struct IpaHwSharedMemWdiMapping_t { |
| 184 | struct IpaHwSharedMemCommonMapping_t common; |
| 185 | u32 reserved_2B_28; |
| 186 | u32 reserved_2F_2C; |
| 187 | u32 reserved_33_30; |
| 188 | u32 reserved_37_34; |
| 189 | u32 reserved_3B_38; |
| 190 | u32 reserved_3F_3C; |
| 191 | u16 interfaceVersionWdi; |
| 192 | u16 reserved_43_42; |
| 193 | u8 wdi_tx_ch_0_state; |
| 194 | u8 wdi_rx_ch_0_state; |
| 195 | u16 reserved_47_46; |
| 196 | } __packed; |
| 197 | |
| 198 | /** |
| 199 | * struct IpaHwWdiTxSetUpCmdData_t - Structure holding the parameters for |
| 200 | * IPA_CPU_2_HW_CMD_WDI_TX_SET_UP command. |
| 201 | * @comp_ring_base_pa : This is the physical address of the base of the Tx |
| 202 | * completion ring |
| 203 | * @comp_ring_size : This is the size of the Tx completion ring |
| 204 | * @reserved_comp_ring : Reserved field for expansion of Completion ring params |
| 205 | * @ce_ring_base_pa : This is the physical address of the base of the Copy |
| 206 | * Engine Source Ring |
| 207 | * @ce_ring_size : Copy Engine Ring size |
| 208 | * @reserved_ce_ring : Reserved field for expansion of CE ring params |
| 209 | * @ce_ring_doorbell_pa : This is the physical address of the doorbell that the |
| 210 | * IPA uC has to write into to trigger the copy engine |
| 211 | * @num_tx_buffers : Number of pkt buffers allocated. The size of the CE ring |
| 212 | * and the Tx completion ring has to be atleast ( num_tx_buffers + 1) |
| 213 | * @ipa_pipe_number : This is the IPA pipe number that has to be used for the |
| 214 | * Tx path |
| 215 | * @reserved : Reserved field |
| 216 | * |
| 217 | * Parameters are sent as pointer thus should be reside in address accessible |
| 218 | * to HW |
| 219 | */ |
| 220 | struct IpaHwWdiTxSetUpCmdData_t { |
| 221 | u32 comp_ring_base_pa; |
| 222 | u16 comp_ring_size; |
| 223 | u16 reserved_comp_ring; |
| 224 | u32 ce_ring_base_pa; |
| 225 | u16 ce_ring_size; |
| 226 | u16 reserved_ce_ring; |
| 227 | u32 ce_ring_doorbell_pa; |
| 228 | u16 num_tx_buffers; |
| 229 | u8 ipa_pipe_number; |
| 230 | u8 reserved; |
| 231 | } __packed; |
| 232 | |
| 233 | struct IpaHwWdi2TxSetUpCmdData_t { |
| 234 | u32 comp_ring_base_pa; |
| 235 | u32 comp_ring_base_pa_hi; |
| 236 | u16 comp_ring_size; |
| 237 | u16 reserved_comp_ring; |
| 238 | u32 ce_ring_base_pa; |
| 239 | u32 ce_ring_base_pa_hi; |
| 240 | u16 ce_ring_size; |
| 241 | u16 reserved_ce_ring; |
| 242 | u32 ce_ring_doorbell_pa; |
| 243 | u32 ce_ring_doorbell_pa_hi; |
| 244 | u16 num_tx_buffers; |
| 245 | u8 ipa_pipe_number; |
| 246 | u8 reserved; |
| 247 | } __packed; |
| 248 | /** |
| 249 | * struct IpaHwWdiRxSetUpCmdData_t - Structure holding the parameters for |
| 250 | * IPA_CPU_2_HW_CMD_WDI_RX_SET_UP command. |
| 251 | * @rx_ring_base_pa : This is the physical address of the base of the Rx ring |
| 252 | * (containing Rx buffers) |
| 253 | * @rx_ring_size : This is the size of the Rx ring |
| 254 | * @rx_ring_rp_pa : This is the physical address of the location through which |
| 255 | * IPA uc is expected to communicate about the Read pointer into the Rx Ring |
| 256 | * @ipa_pipe_number : This is the IPA pipe number that has to be used for the |
| 257 | * Rx path |
| 258 | * |
| 259 | * Parameters are sent as pointer thus should be reside in address accessible |
| 260 | * to HW |
| 261 | */ |
| 262 | struct IpaHwWdiRxSetUpCmdData_t { |
| 263 | u32 rx_ring_base_pa; |
| 264 | u32 rx_ring_size; |
| 265 | u32 rx_ring_rp_pa; |
| 266 | u8 ipa_pipe_number; |
| 267 | } __packed; |
| 268 | |
| 269 | struct IpaHwWdi2RxSetUpCmdData_t { |
| 270 | u32 rx_ring_base_pa; |
| 271 | u32 rx_ring_base_pa_hi; |
| 272 | u32 rx_ring_size; |
| 273 | u32 rx_ring_rp_pa; |
| 274 | u32 rx_ring_rp_pa_hi; |
| 275 | u32 rx_comp_ring_base_pa; |
| 276 | u32 rx_comp_ring_base_pa_hi; |
| 277 | u32 rx_comp_ring_size; |
| 278 | u32 rx_comp_ring_wp_pa; |
| 279 | u32 rx_comp_ring_wp_pa_hi; |
| 280 | u8 ipa_pipe_number; |
| 281 | } __packed; |
| 282 | /** |
| 283 | * union IpaHwWdiRxExtCfgCmdData_t - Structure holding the parameters for |
| 284 | * IPA_CPU_2_HW_CMD_WDI_RX_EXT_CFG command. |
| 285 | * @ipa_pipe_number : The IPA pipe number for which this config is passed |
| 286 | * @qmap_id : QMAP ID to be set in the metadata register |
| 287 | * @reserved : Reserved |
| 288 | * |
| 289 | * The parameters are passed as immediate params in the shared memory |
| 290 | */ |
| 291 | union IpaHwWdiRxExtCfgCmdData_t { |
| 292 | struct IpaHwWdiRxExtCfgCmdParams_t { |
| 293 | u32 ipa_pipe_number:8; |
| 294 | u32 qmap_id:8; |
| 295 | u32 reserved:16; |
| 296 | } __packed params; |
| 297 | u32 raw32b; |
| 298 | } __packed; |
| 299 | |
| 300 | /** |
| 301 | * union IpaHwWdiCommonChCmdData_t - Structure holding the parameters for |
| 302 | * IPA_CPU_2_HW_CMD_WDI_TEAR_DOWN, |
| 303 | * IPA_CPU_2_HW_CMD_WDI_CH_ENABLE, |
| 304 | * IPA_CPU_2_HW_CMD_WDI_CH_DISABLE, |
| 305 | * IPA_CPU_2_HW_CMD_WDI_CH_SUSPEND, |
| 306 | * IPA_CPU_2_HW_CMD_WDI_CH_RESUME command. |
| 307 | * @ipa_pipe_number : The IPA pipe number. This could be Tx or an Rx pipe |
| 308 | * @reserved : Reserved |
| 309 | * |
| 310 | * The parameters are passed as immediate params in the shared memory |
| 311 | */ |
| 312 | union IpaHwWdiCommonChCmdData_t { |
| 313 | struct IpaHwWdiCommonChCmdParams_t { |
| 314 | u32 ipa_pipe_number:8; |
| 315 | u32 reserved:24; |
| 316 | } __packed params; |
| 317 | u32 raw32b; |
| 318 | } __packed; |
| 319 | |
| 320 | /** |
| 321 | * union IpaHwWdiErrorEventData_t - parameters for IPA_HW_2_CPU_EVENT_WDI_ERROR |
| 322 | * event. |
| 323 | * @wdi_error_type : The IPA pipe number to be torn down. This could be Tx or |
| 324 | * an Rx pipe |
| 325 | * @reserved : Reserved |
| 326 | * @ipa_pipe_number : IPA pipe number on which error has happened. Applicable |
| 327 | * only if error type indicates channel error |
| 328 | * @wdi_ch_err_type : Information about the channel error (if available) |
| 329 | * |
| 330 | * The parameters are passed as immediate params in the shared memory |
| 331 | */ |
| 332 | union IpaHwWdiErrorEventData_t { |
| 333 | struct IpaHwWdiErrorEventParams_t { |
| 334 | u32 wdi_error_type:8; |
| 335 | u32 reserved:8; |
| 336 | u32 ipa_pipe_number:8; |
| 337 | u32 wdi_ch_err_type:8; |
| 338 | } __packed params; |
| 339 | u32 raw32b; |
| 340 | } __packed; |
| 341 | |
| 342 | static void ipa3_uc_wdi_event_log_info_handler( |
| 343 | struct IpaHwEventLogInfoData_t *uc_event_top_mmio) |
| 344 | |
| 345 | { |
| 346 | if ((uc_event_top_mmio->featureMask & (1 << IPA_HW_FEATURE_WDI)) == 0) { |
| 347 | IPAERR("WDI feature missing 0x%x\n", |
| 348 | uc_event_top_mmio->featureMask); |
| 349 | return; |
| 350 | } |
| 351 | |
| 352 | if (uc_event_top_mmio->statsInfo.featureInfo[IPA_HW_FEATURE_WDI]. |
| 353 | params.size != sizeof(struct IpaHwStatsWDIInfoData_t)) { |
| 354 | IPAERR("wdi stats sz invalid exp=%zu is=%u\n", |
| 355 | sizeof(struct IpaHwStatsWDIInfoData_t), |
| 356 | uc_event_top_mmio->statsInfo. |
| 357 | featureInfo[IPA_HW_FEATURE_WDI].params.size); |
| 358 | return; |
| 359 | } |
| 360 | |
| 361 | ipa3_ctx->uc_wdi_ctx.wdi_uc_stats_ofst = uc_event_top_mmio-> |
| 362 | statsInfo.baseAddrOffset + uc_event_top_mmio->statsInfo. |
| 363 | featureInfo[IPA_HW_FEATURE_WDI].params.offset; |
| 364 | IPAERR("WDI stats ofst=0x%x\n", ipa3_ctx->uc_wdi_ctx.wdi_uc_stats_ofst); |
| 365 | if (ipa3_ctx->uc_wdi_ctx.wdi_uc_stats_ofst + |
| 366 | sizeof(struct IpaHwStatsWDIInfoData_t) >= |
| 367 | ipa3_ctx->ctrl->ipa_reg_base_ofst + |
| 368 | ipahal_get_reg_n_ofst(IPA_SRAM_DIRECT_ACCESS_n, 0) + |
| 369 | ipa3_ctx->smem_sz) { |
| 370 | IPAERR("uc_wdi_stats 0x%x outside SRAM\n", |
| 371 | ipa3_ctx->uc_wdi_ctx.wdi_uc_stats_ofst); |
| 372 | return; |
| 373 | } |
| 374 | |
| 375 | ipa3_ctx->uc_wdi_ctx.wdi_uc_stats_mmio = |
| 376 | ioremap(ipa3_ctx->ipa_wrapper_base + |
| 377 | ipa3_ctx->uc_wdi_ctx.wdi_uc_stats_ofst, |
| 378 | sizeof(struct IpaHwStatsWDIInfoData_t)); |
| 379 | if (!ipa3_ctx->uc_wdi_ctx.wdi_uc_stats_mmio) { |
| 380 | IPAERR("fail to ioremap uc wdi stats\n"); |
| 381 | return; |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | static void ipa3_uc_wdi_event_handler(struct IpaHwSharedMemCommonMapping_t |
| 386 | *uc_sram_mmio) |
| 387 | |
| 388 | { |
| 389 | union IpaHwWdiErrorEventData_t wdi_evt; |
| 390 | struct IpaHwSharedMemWdiMapping_t *wdi_sram_mmio_ext; |
| 391 | |
| 392 | if (uc_sram_mmio->eventOp == |
| 393 | IPA_HW_2_CPU_EVENT_WDI_ERROR) { |
| 394 | wdi_evt.raw32b = uc_sram_mmio->eventParams; |
| 395 | IPADBG("uC WDI evt errType=%u pipe=%d cherrType=%u\n", |
| 396 | wdi_evt.params.wdi_error_type, |
| 397 | wdi_evt.params.ipa_pipe_number, |
| 398 | wdi_evt.params.wdi_ch_err_type); |
| 399 | wdi_sram_mmio_ext = |
| 400 | (struct IpaHwSharedMemWdiMapping_t *) |
| 401 | uc_sram_mmio; |
| 402 | IPADBG("tx_ch_state=%u rx_ch_state=%u\n", |
| 403 | wdi_sram_mmio_ext->wdi_tx_ch_0_state, |
| 404 | wdi_sram_mmio_ext->wdi_rx_ch_0_state); |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | /** |
| 409 | * ipa3_get_wdi_stats() - Query WDI statistics from uc |
| 410 | * @stats: [inout] stats blob from client populated by driver |
| 411 | * |
| 412 | * Returns: 0 on success, negative on failure |
| 413 | * |
| 414 | * @note Cannot be called from atomic context |
| 415 | * |
| 416 | */ |
| 417 | int ipa3_get_wdi_stats(struct IpaHwStatsWDIInfoData_t *stats) |
| 418 | { |
| 419 | #define TX_STATS(y) stats->tx_ch_stats.y = \ |
| 420 | ipa3_ctx->uc_wdi_ctx.wdi_uc_stats_mmio->tx_ch_stats.y |
| 421 | #define RX_STATS(y) stats->rx_ch_stats.y = \ |
| 422 | ipa3_ctx->uc_wdi_ctx.wdi_uc_stats_mmio->rx_ch_stats.y |
| 423 | |
| 424 | if (!stats || !ipa3_ctx->uc_wdi_ctx.wdi_uc_stats_mmio) { |
| 425 | IPAERR("bad parms stats=%p wdi_stats=%p\n", |
| 426 | stats, |
| 427 | ipa3_ctx->uc_wdi_ctx.wdi_uc_stats_mmio); |
| 428 | return -EINVAL; |
| 429 | } |
| 430 | IPA_ACTIVE_CLIENTS_INC_SIMPLE(); |
| 431 | |
| 432 | TX_STATS(num_pkts_processed); |
| 433 | TX_STATS(copy_engine_doorbell_value); |
| 434 | TX_STATS(num_db_fired); |
| 435 | TX_STATS(tx_comp_ring_stats.ringFull); |
| 436 | TX_STATS(tx_comp_ring_stats.ringEmpty); |
| 437 | TX_STATS(tx_comp_ring_stats.ringUsageHigh); |
| 438 | TX_STATS(tx_comp_ring_stats.ringUsageLow); |
| 439 | TX_STATS(tx_comp_ring_stats.RingUtilCount); |
| 440 | TX_STATS(bam_stats.bamFifoFull); |
| 441 | TX_STATS(bam_stats.bamFifoEmpty); |
| 442 | TX_STATS(bam_stats.bamFifoUsageHigh); |
| 443 | TX_STATS(bam_stats.bamFifoUsageLow); |
| 444 | TX_STATS(bam_stats.bamUtilCount); |
| 445 | TX_STATS(num_db); |
| 446 | TX_STATS(num_unexpected_db); |
| 447 | TX_STATS(num_bam_int_handled); |
| 448 | TX_STATS(num_bam_int_in_non_running_state); |
| 449 | TX_STATS(num_qmb_int_handled); |
| 450 | TX_STATS(num_bam_int_handled_while_wait_for_bam); |
| 451 | |
| 452 | RX_STATS(max_outstanding_pkts); |
| 453 | RX_STATS(num_pkts_processed); |
| 454 | RX_STATS(rx_ring_rp_value); |
| 455 | RX_STATS(rx_ind_ring_stats.ringFull); |
| 456 | RX_STATS(rx_ind_ring_stats.ringEmpty); |
| 457 | RX_STATS(rx_ind_ring_stats.ringUsageHigh); |
| 458 | RX_STATS(rx_ind_ring_stats.ringUsageLow); |
| 459 | RX_STATS(rx_ind_ring_stats.RingUtilCount); |
| 460 | RX_STATS(bam_stats.bamFifoFull); |
| 461 | RX_STATS(bam_stats.bamFifoEmpty); |
| 462 | RX_STATS(bam_stats.bamFifoUsageHigh); |
| 463 | RX_STATS(bam_stats.bamFifoUsageLow); |
| 464 | RX_STATS(bam_stats.bamUtilCount); |
| 465 | RX_STATS(num_bam_int_handled); |
| 466 | RX_STATS(num_db); |
| 467 | RX_STATS(num_unexpected_db); |
| 468 | RX_STATS(num_pkts_in_dis_uninit_state); |
Utkarsh Saxena | 971a03c | 2017-01-22 22:04:13 +0530 | [diff] [blame] | 469 | RX_STATS(num_ic_inj_vdev_change); |
| 470 | RX_STATS(num_ic_inj_fw_desc_change); |
| 471 | RX_STATS(num_qmb_int_handled); |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 472 | RX_STATS(reserved1); |
| 473 | RX_STATS(reserved2); |
| 474 | |
| 475 | IPA_ACTIVE_CLIENTS_DEC_SIMPLE(); |
| 476 | |
| 477 | return 0; |
| 478 | } |
| 479 | |
| 480 | int ipa3_wdi_init(void) |
| 481 | { |
| 482 | struct ipa3_uc_hdlrs uc_wdi_cbs = { 0 }; |
| 483 | |
| 484 | uc_wdi_cbs.ipa_uc_event_hdlr = ipa3_uc_wdi_event_handler; |
| 485 | uc_wdi_cbs.ipa_uc_event_log_info_hdlr = |
| 486 | ipa3_uc_wdi_event_log_info_handler; |
| 487 | uc_wdi_cbs.ipa_uc_loaded_hdlr = |
| 488 | ipa3_uc_wdi_loaded_handler; |
| 489 | |
| 490 | ipa3_uc_register_handlers(IPA_HW_FEATURE_WDI, &uc_wdi_cbs); |
| 491 | |
| 492 | return 0; |
| 493 | } |
| 494 | |
| 495 | static int ipa_create_uc_smmu_mapping_pa(phys_addr_t pa, size_t len, |
| 496 | bool device, unsigned long *iova) |
| 497 | { |
Skylar Chang | efc0a0f | 2018-03-29 11:17:40 -0700 | [diff] [blame] | 498 | struct ipa_smmu_cb_ctx *cb = ipa3_get_smmu_ctx(IPA_SMMU_CB_UC); |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 499 | unsigned long va = roundup(cb->next_addr, PAGE_SIZE); |
| 500 | int prot = IOMMU_READ | IOMMU_WRITE; |
| 501 | size_t true_len = roundup(len + pa - rounddown(pa, PAGE_SIZE), |
| 502 | PAGE_SIZE); |
| 503 | int ret; |
| 504 | |
| 505 | if (!cb->valid) { |
| 506 | IPAERR("No SMMU CB setup\n"); |
| 507 | return -EINVAL; |
| 508 | } |
| 509 | |
| 510 | ret = ipa3_iommu_map(cb->mapping->domain, va, rounddown(pa, PAGE_SIZE), |
| 511 | true_len, |
Amir Levy | f562534 | 2016-12-25 10:21:02 +0200 | [diff] [blame] | 512 | device ? (prot | IOMMU_MMIO) : prot); |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 513 | if (ret) { |
| 514 | IPAERR("iommu map failed for pa=%pa len=%zu\n", &pa, true_len); |
| 515 | return -EINVAL; |
| 516 | } |
| 517 | |
| 518 | ipa3_ctx->wdi_map_cnt++; |
| 519 | cb->next_addr = va + true_len; |
| 520 | *iova = va + pa - rounddown(pa, PAGE_SIZE); |
| 521 | return 0; |
| 522 | } |
| 523 | |
| 524 | static int ipa_create_uc_smmu_mapping_sgt(struct sg_table *sgt, |
| 525 | unsigned long *iova) |
| 526 | { |
Skylar Chang | efc0a0f | 2018-03-29 11:17:40 -0700 | [diff] [blame] | 527 | struct ipa_smmu_cb_ctx *cb = ipa3_get_smmu_ctx(IPA_SMMU_CB_UC); |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 528 | unsigned long va = roundup(cb->next_addr, PAGE_SIZE); |
| 529 | int prot = IOMMU_READ | IOMMU_WRITE; |
| 530 | int ret; |
| 531 | int i; |
| 532 | struct scatterlist *sg; |
| 533 | unsigned long start_iova = va; |
| 534 | phys_addr_t phys; |
| 535 | size_t len; |
| 536 | int count = 0; |
| 537 | |
| 538 | if (!cb->valid) { |
| 539 | IPAERR("No SMMU CB setup\n"); |
| 540 | return -EINVAL; |
| 541 | } |
| 542 | if (!sgt) { |
| 543 | IPAERR("Bad parameters, scatter / gather list is NULL\n"); |
| 544 | return -EINVAL; |
| 545 | } |
| 546 | |
| 547 | for_each_sg(sgt->sgl, sg, sgt->nents, i) { |
| 548 | /* directly get sg_tbl PA from wlan-driver */ |
| 549 | phys = sg->dma_address; |
| 550 | len = PAGE_ALIGN(sg->offset + sg->length); |
| 551 | |
| 552 | ret = ipa3_iommu_map(cb->mapping->domain, va, phys, len, prot); |
| 553 | if (ret) { |
| 554 | IPAERR("iommu map failed for pa=%pa len=%zu\n", |
| 555 | &phys, len); |
| 556 | goto bad_mapping; |
| 557 | } |
| 558 | va += len; |
| 559 | ipa3_ctx->wdi_map_cnt++; |
| 560 | count++; |
| 561 | } |
| 562 | cb->next_addr = va; |
| 563 | *iova = start_iova; |
| 564 | |
| 565 | return 0; |
| 566 | |
| 567 | bad_mapping: |
| 568 | for_each_sg(sgt->sgl, sg, count, i) |
| 569 | iommu_unmap(cb->mapping->domain, sg_dma_address(sg), |
| 570 | sg_dma_len(sg)); |
| 571 | return -EINVAL; |
| 572 | } |
| 573 | |
| 574 | static void ipa_release_uc_smmu_mappings(enum ipa_client_type client) |
| 575 | { |
Skylar Chang | efc0a0f | 2018-03-29 11:17:40 -0700 | [diff] [blame] | 576 | struct ipa_smmu_cb_ctx *cb = ipa3_get_smmu_ctx(IPA_SMMU_CB_UC); |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 577 | int i; |
| 578 | int j; |
| 579 | int start; |
| 580 | int end; |
| 581 | |
| 582 | if (IPA_CLIENT_IS_CONS(client)) { |
| 583 | start = IPA_WDI_TX_RING_RES; |
| 584 | end = IPA_WDI_CE_DB_RES; |
| 585 | } else { |
| 586 | start = IPA_WDI_RX_RING_RES; |
| 587 | if (ipa3_ctx->ipa_wdi2) |
| 588 | end = IPA_WDI_RX_COMP_RING_WP_RES; |
| 589 | else |
| 590 | end = IPA_WDI_RX_RING_RP_RES; |
| 591 | } |
| 592 | |
| 593 | for (i = start; i <= end; i++) { |
| 594 | if (wdi_res[i].valid) { |
| 595 | for (j = 0; j < wdi_res[i].nents; j++) { |
| 596 | iommu_unmap(cb->mapping->domain, |
| 597 | wdi_res[i].res[j].iova, |
| 598 | wdi_res[i].res[j].size); |
| 599 | ipa3_ctx->wdi_map_cnt--; |
| 600 | } |
| 601 | kfree(wdi_res[i].res); |
| 602 | wdi_res[i].valid = false; |
| 603 | } |
| 604 | } |
| 605 | |
| 606 | if (ipa3_ctx->wdi_map_cnt == 0) |
| 607 | cb->next_addr = cb->va_end; |
| 608 | |
| 609 | } |
| 610 | |
| 611 | static void ipa_save_uc_smmu_mapping_pa(int res_idx, phys_addr_t pa, |
| 612 | unsigned long iova, size_t len) |
| 613 | { |
| 614 | IPADBG("--res_idx=%d pa=0x%pa iova=0x%lx sz=0x%zx\n", res_idx, |
Michael Adisumarta | 658afb8 | 2017-11-01 18:16:48 -0700 | [diff] [blame] | 615 | &pa, iova, len); |
| 616 | wdi_res[res_idx].res = kzalloc(sizeof(*wdi_res[res_idx].res), |
| 617 | GFP_KERNEL); |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 618 | if (!wdi_res[res_idx].res) |
| 619 | BUG(); |
| 620 | wdi_res[res_idx].nents = 1; |
| 621 | wdi_res[res_idx].valid = true; |
| 622 | wdi_res[res_idx].res->pa = rounddown(pa, PAGE_SIZE); |
| 623 | wdi_res[res_idx].res->iova = rounddown(iova, PAGE_SIZE); |
| 624 | wdi_res[res_idx].res->size = roundup(len + pa - rounddown(pa, |
| 625 | PAGE_SIZE), PAGE_SIZE); |
| 626 | IPADBG("res_idx=%d pa=0x%pa iova=0x%lx sz=0x%zx\n", res_idx, |
| 627 | &wdi_res[res_idx].res->pa, wdi_res[res_idx].res->iova, |
| 628 | wdi_res[res_idx].res->size); |
| 629 | } |
| 630 | |
| 631 | static void ipa_save_uc_smmu_mapping_sgt(int res_idx, struct sg_table *sgt, |
| 632 | unsigned long iova) |
| 633 | { |
| 634 | int i; |
| 635 | struct scatterlist *sg; |
| 636 | unsigned long curr_iova = iova; |
| 637 | |
| 638 | if (!sgt) { |
| 639 | IPAERR("Bad parameters, scatter / gather list is NULL\n"); |
| 640 | return; |
| 641 | } |
| 642 | |
Michael Adisumarta | 658afb8 | 2017-11-01 18:16:48 -0700 | [diff] [blame] | 643 | wdi_res[res_idx].res = kcalloc(sgt->nents, |
| 644 | sizeof(*wdi_res[res_idx].res), |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 645 | GFP_KERNEL); |
| 646 | if (!wdi_res[res_idx].res) |
| 647 | BUG(); |
| 648 | wdi_res[res_idx].nents = sgt->nents; |
| 649 | wdi_res[res_idx].valid = true; |
| 650 | for_each_sg(sgt->sgl, sg, sgt->nents, i) { |
| 651 | /* directly get sg_tbl PA from wlan */ |
| 652 | wdi_res[res_idx].res[i].pa = sg->dma_address; |
| 653 | wdi_res[res_idx].res[i].iova = curr_iova; |
| 654 | wdi_res[res_idx].res[i].size = PAGE_ALIGN(sg->offset + |
| 655 | sg->length); |
| 656 | IPADBG("res_idx=%d pa=0x%pa iova=0x%lx sz=0x%zx\n", res_idx, |
| 657 | &wdi_res[res_idx].res[i].pa, |
| 658 | wdi_res[res_idx].res[i].iova, |
| 659 | wdi_res[res_idx].res[i].size); |
| 660 | curr_iova += wdi_res[res_idx].res[i].size; |
| 661 | } |
| 662 | } |
| 663 | |
Shihuan Liu | 105b31f | 2017-11-21 11:43:58 -0800 | [diff] [blame] | 664 | int ipa_create_uc_smmu_mapping(int res_idx, bool wlan_smmu_en, |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 665 | phys_addr_t pa, struct sg_table *sgt, size_t len, bool device, |
| 666 | unsigned long *iova) |
| 667 | { |
| 668 | /* support for SMMU on WLAN but no SMMU on IPA */ |
Michael Adisumarta | 93e9752 | 2017-10-06 15:49:46 -0700 | [diff] [blame] | 669 | if (wlan_smmu_en && ipa3_ctx->s1_bypass_arr[IPA_SMMU_CB_UC]) { |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 670 | IPAERR("Unsupported SMMU pairing\n"); |
| 671 | return -EINVAL; |
| 672 | } |
| 673 | |
| 674 | /* legacy: no SMMUs on either end */ |
Michael Adisumarta | 93e9752 | 2017-10-06 15:49:46 -0700 | [diff] [blame] | 675 | if (!wlan_smmu_en && ipa3_ctx->s1_bypass_arr[IPA_SMMU_CB_UC]) { |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 676 | *iova = pa; |
| 677 | return 0; |
| 678 | } |
| 679 | |
| 680 | /* no SMMU on WLAN but SMMU on IPA */ |
Michael Adisumarta | 93e9752 | 2017-10-06 15:49:46 -0700 | [diff] [blame] | 681 | if (!wlan_smmu_en && !ipa3_ctx->s1_bypass_arr[IPA_SMMU_CB_UC]) { |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 682 | if (ipa_create_uc_smmu_mapping_pa(pa, len, |
| 683 | (res_idx == IPA_WDI_CE_DB_RES) ? true : false, iova)) { |
| 684 | IPAERR("Fail to create mapping res %d\n", res_idx); |
| 685 | return -EFAULT; |
| 686 | } |
| 687 | ipa_save_uc_smmu_mapping_pa(res_idx, pa, *iova, len); |
| 688 | return 0; |
| 689 | } |
| 690 | |
| 691 | /* SMMU on WLAN and SMMU on IPA */ |
Michael Adisumarta | 93e9752 | 2017-10-06 15:49:46 -0700 | [diff] [blame] | 692 | if (wlan_smmu_en && !ipa3_ctx->s1_bypass_arr[IPA_SMMU_CB_UC]) { |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 693 | switch (res_idx) { |
| 694 | case IPA_WDI_RX_RING_RP_RES: |
| 695 | case IPA_WDI_RX_COMP_RING_WP_RES: |
| 696 | case IPA_WDI_CE_DB_RES: |
Shihuan Liu | 105b31f | 2017-11-21 11:43:58 -0800 | [diff] [blame] | 697 | case IPA_WDI_TX_DB_RES: |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 698 | if (ipa_create_uc_smmu_mapping_pa(pa, len, |
| 699 | (res_idx == IPA_WDI_CE_DB_RES) ? true : false, |
| 700 | iova)) { |
| 701 | IPAERR("Fail to create mapping res %d\n", |
| 702 | res_idx); |
| 703 | return -EFAULT; |
| 704 | } |
| 705 | ipa_save_uc_smmu_mapping_pa(res_idx, pa, *iova, len); |
| 706 | break; |
| 707 | case IPA_WDI_RX_RING_RES: |
| 708 | case IPA_WDI_RX_COMP_RING_RES: |
| 709 | case IPA_WDI_TX_RING_RES: |
| 710 | case IPA_WDI_CE_RING_RES: |
| 711 | if (ipa_create_uc_smmu_mapping_sgt(sgt, iova)) { |
| 712 | IPAERR("Fail to create mapping res %d\n", |
| 713 | res_idx); |
| 714 | return -EFAULT; |
| 715 | } |
| 716 | ipa_save_uc_smmu_mapping_sgt(res_idx, sgt, *iova); |
| 717 | break; |
| 718 | default: |
| 719 | BUG(); |
| 720 | } |
| 721 | } |
| 722 | |
| 723 | return 0; |
| 724 | } |
| 725 | |
| 726 | /** |
| 727 | * ipa3_connect_wdi_pipe() - WDI client connect |
| 728 | * @in: [in] input parameters from client |
| 729 | * @out: [out] output params to client |
| 730 | * |
| 731 | * Returns: 0 on success, negative on failure |
| 732 | * |
| 733 | * Note: Should not be called from atomic context |
| 734 | */ |
| 735 | int ipa3_connect_wdi_pipe(struct ipa_wdi_in_params *in, |
| 736 | struct ipa_wdi_out_params *out) |
| 737 | { |
| 738 | int ipa_ep_idx; |
| 739 | int result = -EFAULT; |
| 740 | struct ipa3_ep_context *ep; |
| 741 | struct ipa_mem_buffer cmd; |
| 742 | struct IpaHwWdiTxSetUpCmdData_t *tx; |
| 743 | struct IpaHwWdiRxSetUpCmdData_t *rx; |
| 744 | struct IpaHwWdi2TxSetUpCmdData_t *tx_2; |
| 745 | struct IpaHwWdi2RxSetUpCmdData_t *rx_2; |
| 746 | |
| 747 | struct ipa_ep_cfg_ctrl ep_cfg_ctrl; |
| 748 | unsigned long va; |
| 749 | phys_addr_t pa; |
| 750 | u32 len; |
| 751 | |
| 752 | if (in == NULL || out == NULL || in->sys.client >= IPA_CLIENT_MAX) { |
| 753 | IPAERR("bad parm. in=%p out=%p\n", in, out); |
| 754 | if (in) |
| 755 | IPAERR("client = %d\n", in->sys.client); |
| 756 | return -EINVAL; |
| 757 | } |
| 758 | |
| 759 | if (IPA_CLIENT_IS_CONS(in->sys.client)) { |
| 760 | if (in->u.dl.comp_ring_base_pa % IPA_WDI_RING_ALIGNMENT || |
| 761 | in->u.dl.ce_ring_base_pa % IPA_WDI_RING_ALIGNMENT) { |
| 762 | IPAERR("alignment failure on TX\n"); |
| 763 | return -EINVAL; |
| 764 | } |
| 765 | } else { |
| 766 | if (in->u.ul.rdy_ring_base_pa % IPA_WDI_RING_ALIGNMENT) { |
| 767 | IPAERR("alignment failure on RX\n"); |
| 768 | return -EINVAL; |
| 769 | } |
| 770 | } |
| 771 | |
| 772 | result = ipa3_uc_state_check(); |
| 773 | if (result) |
| 774 | return result; |
| 775 | |
| 776 | ipa_ep_idx = ipa3_get_ep_mapping(in->sys.client); |
| 777 | if (ipa_ep_idx == -1) { |
| 778 | IPAERR("fail to alloc EP.\n"); |
| 779 | goto fail; |
| 780 | } |
| 781 | |
| 782 | ep = &ipa3_ctx->ep[ipa_ep_idx]; |
| 783 | |
| 784 | if (ep->valid) { |
| 785 | IPAERR("EP already allocated.\n"); |
| 786 | goto fail; |
| 787 | } |
| 788 | |
| 789 | memset(&ipa3_ctx->ep[ipa_ep_idx], 0, sizeof(struct ipa3_ep_context)); |
| 790 | IPA_ACTIVE_CLIENTS_INC_EP(in->sys.client); |
| 791 | |
| 792 | IPADBG("client=%d ep=%d\n", in->sys.client, ipa_ep_idx); |
| 793 | if (IPA_CLIENT_IS_CONS(in->sys.client)) { |
| 794 | if (ipa3_ctx->ipa_wdi2) |
| 795 | cmd.size = sizeof(*tx_2); |
| 796 | else |
| 797 | cmd.size = sizeof(*tx); |
| 798 | IPADBG("comp_ring_base_pa=0x%pa\n", |
| 799 | &in->u.dl.comp_ring_base_pa); |
| 800 | IPADBG("comp_ring_size=%d\n", in->u.dl.comp_ring_size); |
| 801 | IPADBG("ce_ring_base_pa=0x%pa\n", &in->u.dl.ce_ring_base_pa); |
| 802 | IPADBG("ce_ring_size=%d\n", in->u.dl.ce_ring_size); |
| 803 | IPADBG("ce_ring_doorbell_pa=0x%pa\n", |
| 804 | &in->u.dl.ce_door_bell_pa); |
| 805 | IPADBG("num_tx_buffers=%d\n", in->u.dl.num_tx_buffers); |
| 806 | } else { |
| 807 | if (ipa3_ctx->ipa_wdi2) |
| 808 | cmd.size = sizeof(*rx_2); |
| 809 | else |
| 810 | cmd.size = sizeof(*rx); |
| 811 | IPADBG("rx_ring_base_pa=0x%pa\n", |
| 812 | &in->u.ul.rdy_ring_base_pa); |
| 813 | IPADBG("rx_ring_size=%d\n", |
| 814 | in->u.ul.rdy_ring_size); |
| 815 | IPADBG("rx_ring_rp_pa=0x%pa\n", |
| 816 | &in->u.ul.rdy_ring_rp_pa); |
| 817 | IPADBG("rx_comp_ring_base_pa=0x%pa\n", |
| 818 | &in->u.ul.rdy_comp_ring_base_pa); |
| 819 | IPADBG("rx_comp_ring_size=%d\n", |
| 820 | in->u.ul.rdy_comp_ring_size); |
| 821 | IPADBG("rx_comp_ring_wp_pa=0x%pa\n", |
| 822 | &in->u.ul.rdy_comp_ring_wp_pa); |
| 823 | ipa3_ctx->uc_ctx.rdy_ring_base_pa = |
| 824 | in->u.ul.rdy_ring_base_pa; |
| 825 | ipa3_ctx->uc_ctx.rdy_ring_rp_pa = |
| 826 | in->u.ul.rdy_ring_rp_pa; |
| 827 | ipa3_ctx->uc_ctx.rdy_ring_size = |
| 828 | in->u.ul.rdy_ring_size; |
| 829 | ipa3_ctx->uc_ctx.rdy_comp_ring_base_pa = |
| 830 | in->u.ul.rdy_comp_ring_base_pa; |
| 831 | ipa3_ctx->uc_ctx.rdy_comp_ring_wp_pa = |
| 832 | in->u.ul.rdy_comp_ring_wp_pa; |
| 833 | ipa3_ctx->uc_ctx.rdy_comp_ring_size = |
| 834 | in->u.ul.rdy_comp_ring_size; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 835 | } |
| 836 | |
| 837 | cmd.base = dma_alloc_coherent(ipa3_ctx->uc_pdev, cmd.size, |
| 838 | &cmd.phys_base, GFP_KERNEL); |
| 839 | if (cmd.base == NULL) { |
| 840 | IPAERR("fail to get DMA memory.\n"); |
| 841 | result = -ENOMEM; |
| 842 | goto dma_alloc_fail; |
| 843 | } |
| 844 | |
| 845 | if (IPA_CLIENT_IS_CONS(in->sys.client)) { |
| 846 | if (ipa3_ctx->ipa_wdi2) { |
| 847 | tx_2 = (struct IpaHwWdi2TxSetUpCmdData_t *)cmd.base; |
| 848 | |
| 849 | len = in->smmu_enabled ? in->u.dl_smmu.comp_ring_size : |
| 850 | in->u.dl.comp_ring_size; |
| 851 | IPADBG("TX_2 ring smmu_en=%d ring_size=%d %d\n", |
| 852 | in->smmu_enabled, |
| 853 | in->u.dl_smmu.comp_ring_size, |
| 854 | in->u.dl.comp_ring_size); |
| 855 | if (ipa_create_uc_smmu_mapping(IPA_WDI_TX_RING_RES, |
| 856 | in->smmu_enabled, |
| 857 | in->u.dl.comp_ring_base_pa, |
| 858 | &in->u.dl_smmu.comp_ring, |
| 859 | len, |
| 860 | false, |
| 861 | &va)) { |
| 862 | IPAERR("fail to create uc mapping TX ring.\n"); |
| 863 | result = -ENOMEM; |
| 864 | goto uc_timeout; |
| 865 | } |
| 866 | tx_2->comp_ring_base_pa_hi = |
| 867 | (u32) ((va & 0xFFFFFFFF00000000) >> 32); |
| 868 | tx_2->comp_ring_base_pa = (u32) (va & 0xFFFFFFFF); |
| 869 | tx_2->comp_ring_size = len; |
| 870 | IPADBG("TX_2 comp_ring_base_pa_hi=0x%08x :0x%08x\n", |
| 871 | tx_2->comp_ring_base_pa_hi, |
| 872 | tx_2->comp_ring_base_pa); |
| 873 | |
| 874 | len = in->smmu_enabled ? in->u.dl_smmu.ce_ring_size : |
| 875 | in->u.dl.ce_ring_size; |
| 876 | IPADBG("TX_2 CE ring smmu_en=%d ring_size=%d %d\n", |
| 877 | in->smmu_enabled, |
| 878 | in->u.dl_smmu.ce_ring_size, |
| 879 | in->u.dl.ce_ring_size); |
| 880 | /* WA: wlan passed ce_ring sg_table PA directly */ |
| 881 | if (ipa_create_uc_smmu_mapping(IPA_WDI_CE_RING_RES, |
| 882 | in->smmu_enabled, |
| 883 | in->u.dl.ce_ring_base_pa, |
| 884 | &in->u.dl_smmu.ce_ring, |
| 885 | len, |
| 886 | false, |
| 887 | &va)) { |
| 888 | IPAERR("fail to create uc mapping CE ring.\n"); |
| 889 | result = -ENOMEM; |
| 890 | goto uc_timeout; |
| 891 | } |
| 892 | tx_2->ce_ring_base_pa_hi = |
| 893 | (u32) ((va & 0xFFFFFFFF00000000) >> 32); |
| 894 | tx_2->ce_ring_base_pa = (u32) (va & 0xFFFFFFFF); |
| 895 | tx_2->ce_ring_size = len; |
| 896 | IPADBG("TX_2 ce_ring_base_pa_hi=0x%08x :0x%08x\n", |
| 897 | tx_2->ce_ring_base_pa_hi, |
| 898 | tx_2->ce_ring_base_pa); |
| 899 | |
| 900 | pa = in->smmu_enabled ? in->u.dl_smmu.ce_door_bell_pa : |
| 901 | in->u.dl.ce_door_bell_pa; |
| 902 | if (ipa_create_uc_smmu_mapping(IPA_WDI_CE_DB_RES, |
| 903 | in->smmu_enabled, |
| 904 | pa, |
| 905 | NULL, |
| 906 | 4, |
| 907 | true, |
| 908 | &va)) { |
| 909 | IPAERR("fail to create uc mapping CE DB.\n"); |
| 910 | result = -ENOMEM; |
| 911 | goto uc_timeout; |
| 912 | } |
| 913 | tx_2->ce_ring_doorbell_pa_hi = |
| 914 | (u32) ((va & 0xFFFFFFFF00000000) >> 32); |
| 915 | tx_2->ce_ring_doorbell_pa = (u32) (va & 0xFFFFFFFF); |
| 916 | IPADBG("TX_2 ce_ring_doorbell_pa_hi=0x%08x :0x%08x\n", |
| 917 | tx_2->ce_ring_doorbell_pa_hi, |
| 918 | tx_2->ce_ring_doorbell_pa); |
| 919 | |
| 920 | tx_2->num_tx_buffers = in->smmu_enabled ? |
| 921 | in->u.dl_smmu.num_tx_buffers : |
| 922 | in->u.dl.num_tx_buffers; |
| 923 | tx_2->ipa_pipe_number = ipa_ep_idx; |
| 924 | } else { |
| 925 | tx = (struct IpaHwWdiTxSetUpCmdData_t *)cmd.base; |
| 926 | |
| 927 | len = in->smmu_enabled ? in->u.dl_smmu.comp_ring_size : |
| 928 | in->u.dl.comp_ring_size; |
| 929 | IPADBG("TX ring smmu_en=%d ring_size=%d %d\n", |
| 930 | in->smmu_enabled, |
| 931 | in->u.dl_smmu.comp_ring_size, |
| 932 | in->u.dl.comp_ring_size); |
| 933 | if (ipa_create_uc_smmu_mapping(IPA_WDI_TX_RING_RES, |
| 934 | in->smmu_enabled, |
| 935 | in->u.dl.comp_ring_base_pa, |
| 936 | &in->u.dl_smmu.comp_ring, |
| 937 | len, |
| 938 | false, |
| 939 | &va)) { |
| 940 | IPAERR("fail to create uc mapping TX ring.\n"); |
| 941 | result = -ENOMEM; |
| 942 | goto uc_timeout; |
| 943 | } |
| 944 | tx->comp_ring_base_pa = va; |
| 945 | tx->comp_ring_size = len; |
| 946 | len = in->smmu_enabled ? in->u.dl_smmu.ce_ring_size : |
| 947 | in->u.dl.ce_ring_size; |
| 948 | IPADBG("TX CE ring smmu_en=%d ring_size=%d %d\n", |
| 949 | in->smmu_enabled, |
| 950 | in->u.dl_smmu.ce_ring_size, |
| 951 | in->u.dl.ce_ring_size); |
| 952 | if (ipa_create_uc_smmu_mapping(IPA_WDI_CE_RING_RES, |
| 953 | in->smmu_enabled, |
| 954 | in->u.dl.ce_ring_base_pa, |
| 955 | &in->u.dl_smmu.ce_ring, |
| 956 | len, |
| 957 | false, |
| 958 | &va)) { |
| 959 | IPAERR("fail to create uc mapping CE ring.\n"); |
| 960 | result = -ENOMEM; |
| 961 | goto uc_timeout; |
| 962 | } |
| 963 | tx->ce_ring_base_pa = va; |
| 964 | tx->ce_ring_size = len; |
| 965 | pa = in->smmu_enabled ? in->u.dl_smmu.ce_door_bell_pa : |
| 966 | in->u.dl.ce_door_bell_pa; |
| 967 | if (ipa_create_uc_smmu_mapping(IPA_WDI_CE_DB_RES, |
| 968 | in->smmu_enabled, |
| 969 | pa, |
| 970 | NULL, |
| 971 | 4, |
| 972 | true, |
| 973 | &va)) { |
| 974 | IPAERR("fail to create uc mapping CE DB.\n"); |
| 975 | result = -ENOMEM; |
| 976 | goto uc_timeout; |
| 977 | } |
| 978 | tx->ce_ring_doorbell_pa = va; |
| 979 | tx->num_tx_buffers = in->u.dl.num_tx_buffers; |
| 980 | tx->ipa_pipe_number = ipa_ep_idx; |
| 981 | } |
| 982 | out->uc_door_bell_pa = ipa3_ctx->ipa_wrapper_base + |
| 983 | ipahal_get_reg_base() + |
| 984 | ipahal_get_reg_mn_ofst(IPA_UC_MAILBOX_m_n, |
| 985 | IPA_HW_WDI_TX_MBOX_START_INDEX/32, |
| 986 | IPA_HW_WDI_TX_MBOX_START_INDEX % 32); |
| 987 | } else { |
| 988 | if (ipa3_ctx->ipa_wdi2) { |
| 989 | rx_2 = (struct IpaHwWdi2RxSetUpCmdData_t *)cmd.base; |
| 990 | |
| 991 | len = in->smmu_enabled ? in->u.ul_smmu.rdy_ring_size : |
| 992 | in->u.ul.rdy_ring_size; |
| 993 | IPADBG("RX_2 ring smmu_en=%d ring_size=%d %d\n", |
| 994 | in->smmu_enabled, |
| 995 | in->u.ul_smmu.rdy_ring_size, |
| 996 | in->u.ul.rdy_ring_size); |
| 997 | if (ipa_create_uc_smmu_mapping(IPA_WDI_RX_RING_RES, |
| 998 | in->smmu_enabled, |
| 999 | in->u.ul.rdy_ring_base_pa, |
| 1000 | &in->u.ul_smmu.rdy_ring, |
| 1001 | len, |
| 1002 | false, |
| 1003 | &va)) { |
| 1004 | IPAERR("fail to create uc RX_2 ring.\n"); |
| 1005 | result = -ENOMEM; |
| 1006 | goto uc_timeout; |
| 1007 | } |
| 1008 | rx_2->rx_ring_base_pa_hi = |
| 1009 | (u32) ((va & 0xFFFFFFFF00000000) >> 32); |
| 1010 | rx_2->rx_ring_base_pa = (u32) (va & 0xFFFFFFFF); |
| 1011 | rx_2->rx_ring_size = len; |
| 1012 | IPADBG("RX_2 rx_ring_base_pa_hi=0x%08x:0x%08x\n", |
| 1013 | rx_2->rx_ring_base_pa_hi, |
| 1014 | rx_2->rx_ring_base_pa); |
| 1015 | |
| 1016 | pa = in->smmu_enabled ? in->u.ul_smmu.rdy_ring_rp_pa : |
| 1017 | in->u.ul.rdy_ring_rp_pa; |
| 1018 | if (ipa_create_uc_smmu_mapping(IPA_WDI_RX_RING_RP_RES, |
| 1019 | in->smmu_enabled, |
| 1020 | pa, |
| 1021 | NULL, |
| 1022 | 4, |
| 1023 | false, |
| 1024 | &va)) { |
| 1025 | IPAERR("fail to create uc RX_2 rng RP\n"); |
| 1026 | result = -ENOMEM; |
| 1027 | goto uc_timeout; |
| 1028 | } |
| 1029 | rx_2->rx_ring_rp_pa_hi = |
| 1030 | (u32) ((va & 0xFFFFFFFF00000000) >> 32); |
| 1031 | rx_2->rx_ring_rp_pa = (u32) (va & 0xFFFFFFFF); |
| 1032 | IPADBG("RX_2 rx_ring_rp_pa_hi=0x%08x :0x%08x\n", |
| 1033 | rx_2->rx_ring_rp_pa_hi, |
| 1034 | rx_2->rx_ring_rp_pa); |
| 1035 | len = in->smmu_enabled ? |
| 1036 | in->u.ul_smmu.rdy_comp_ring_size : |
| 1037 | in->u.ul.rdy_comp_ring_size; |
| 1038 | IPADBG("RX_2 ring smmu_en=%d comp_ring_size=%d %d\n", |
| 1039 | in->smmu_enabled, |
| 1040 | in->u.ul_smmu.rdy_comp_ring_size, |
| 1041 | in->u.ul.rdy_comp_ring_size); |
| 1042 | if (ipa_create_uc_smmu_mapping(IPA_WDI_RX_COMP_RING_RES, |
| 1043 | in->smmu_enabled, |
| 1044 | in->u.ul.rdy_comp_ring_base_pa, |
| 1045 | &in->u.ul_smmu.rdy_comp_ring, |
| 1046 | len, |
| 1047 | false, |
| 1048 | &va)) { |
| 1049 | IPAERR("fail to create uc RX_2 comp_ring.\n"); |
| 1050 | result = -ENOMEM; |
| 1051 | goto uc_timeout; |
| 1052 | } |
| 1053 | rx_2->rx_comp_ring_base_pa_hi = |
| 1054 | (u32) ((va & 0xFFFFFFFF00000000) >> 32); |
| 1055 | rx_2->rx_comp_ring_base_pa = (u32) (va & 0xFFFFFFFF); |
| 1056 | rx_2->rx_comp_ring_size = len; |
| 1057 | IPADBG("RX_2 rx_comp_ring_base_pa_hi=0x%08x:0x%08x\n", |
| 1058 | rx_2->rx_comp_ring_base_pa_hi, |
| 1059 | rx_2->rx_comp_ring_base_pa); |
| 1060 | |
| 1061 | pa = in->smmu_enabled ? |
| 1062 | in->u.ul_smmu.rdy_comp_ring_wp_pa : |
| 1063 | in->u.ul.rdy_comp_ring_wp_pa; |
| 1064 | if (ipa_create_uc_smmu_mapping( |
| 1065 | IPA_WDI_RX_COMP_RING_WP_RES, |
| 1066 | in->smmu_enabled, |
| 1067 | pa, |
| 1068 | NULL, |
| 1069 | 4, |
| 1070 | false, |
| 1071 | &va)) { |
| 1072 | IPAERR("fail to create uc RX_2 comp_rng WP\n"); |
| 1073 | result = -ENOMEM; |
| 1074 | goto uc_timeout; |
| 1075 | } |
| 1076 | rx_2->rx_comp_ring_wp_pa_hi = |
| 1077 | (u32) ((va & 0xFFFFFFFF00000000) >> 32); |
| 1078 | rx_2->rx_comp_ring_wp_pa = (u32) (va & 0xFFFFFFFF); |
| 1079 | IPADBG("RX_2 rx_comp_ring_wp_pa_hi=0x%08x:0x%08x\n", |
| 1080 | rx_2->rx_comp_ring_wp_pa_hi, |
| 1081 | rx_2->rx_comp_ring_wp_pa); |
| 1082 | rx_2->ipa_pipe_number = ipa_ep_idx; |
| 1083 | } else { |
| 1084 | rx = (struct IpaHwWdiRxSetUpCmdData_t *)cmd.base; |
| 1085 | |
| 1086 | len = in->smmu_enabled ? in->u.ul_smmu.rdy_ring_size : |
| 1087 | in->u.ul.rdy_ring_size; |
| 1088 | IPADBG("RX ring smmu_en=%d ring_size=%d %d\n", |
| 1089 | in->smmu_enabled, |
| 1090 | in->u.ul_smmu.rdy_ring_size, |
| 1091 | in->u.ul.rdy_ring_size); |
| 1092 | if (ipa_create_uc_smmu_mapping(IPA_WDI_RX_RING_RES, |
| 1093 | in->smmu_enabled, |
| 1094 | in->u.ul.rdy_ring_base_pa, |
| 1095 | &in->u.ul_smmu.rdy_ring, |
| 1096 | len, |
| 1097 | false, |
| 1098 | &va)) { |
| 1099 | IPAERR("fail to create uc mapping RX ring.\n"); |
| 1100 | result = -ENOMEM; |
| 1101 | goto uc_timeout; |
| 1102 | } |
| 1103 | rx->rx_ring_base_pa = va; |
| 1104 | rx->rx_ring_size = len; |
| 1105 | |
| 1106 | pa = in->smmu_enabled ? in->u.ul_smmu.rdy_ring_rp_pa : |
| 1107 | in->u.ul.rdy_ring_rp_pa; |
| 1108 | if (ipa_create_uc_smmu_mapping(IPA_WDI_RX_RING_RP_RES, |
| 1109 | in->smmu_enabled, |
| 1110 | pa, |
| 1111 | NULL, |
| 1112 | 4, |
| 1113 | false, |
| 1114 | &va)) { |
| 1115 | IPAERR("fail to create uc mapping RX rng RP\n"); |
| 1116 | result = -ENOMEM; |
| 1117 | goto uc_timeout; |
| 1118 | } |
| 1119 | rx->rx_ring_rp_pa = va; |
| 1120 | rx->ipa_pipe_number = ipa_ep_idx; |
| 1121 | } |
| 1122 | out->uc_door_bell_pa = ipa3_ctx->ipa_wrapper_base + |
| 1123 | ipahal_get_reg_base() + |
| 1124 | ipahal_get_reg_mn_ofst(IPA_UC_MAILBOX_m_n, |
| 1125 | IPA_HW_WDI_RX_MBOX_START_INDEX/32, |
| 1126 | IPA_HW_WDI_RX_MBOX_START_INDEX % 32); |
| 1127 | } |
| 1128 | |
| 1129 | ep->valid = 1; |
| 1130 | ep->client = in->sys.client; |
| 1131 | ep->keep_ipa_awake = in->sys.keep_ipa_awake; |
| 1132 | result = ipa3_disable_data_path(ipa_ep_idx); |
| 1133 | if (result) { |
| 1134 | IPAERR("disable data path failed res=%d clnt=%d.\n", result, |
| 1135 | ipa_ep_idx); |
| 1136 | goto uc_timeout; |
| 1137 | } |
| 1138 | if (IPA_CLIENT_IS_PROD(in->sys.client)) { |
| 1139 | memset(&ep_cfg_ctrl, 0, sizeof(struct ipa_ep_cfg_ctrl)); |
| 1140 | ep_cfg_ctrl.ipa_ep_delay = true; |
| 1141 | ipa3_cfg_ep_ctrl(ipa_ep_idx, &ep_cfg_ctrl); |
| 1142 | } |
| 1143 | |
| 1144 | result = ipa3_uc_send_cmd((u32)(cmd.phys_base), |
| 1145 | IPA_CLIENT_IS_CONS(in->sys.client) ? |
| 1146 | IPA_CPU_2_HW_CMD_WDI_TX_SET_UP : |
| 1147 | IPA_CPU_2_HW_CMD_WDI_RX_SET_UP, |
| 1148 | IPA_HW_2_CPU_WDI_CMD_STATUS_SUCCESS, |
| 1149 | false, 10*HZ); |
| 1150 | |
| 1151 | if (result) { |
| 1152 | result = -EFAULT; |
| 1153 | goto uc_timeout; |
| 1154 | } |
| 1155 | |
| 1156 | ep->skip_ep_cfg = in->sys.skip_ep_cfg; |
| 1157 | ep->client_notify = in->sys.notify; |
| 1158 | ep->priv = in->sys.priv; |
| 1159 | |
Skylar Chang | 6b41f8d | 2016-11-01 12:50:11 -0700 | [diff] [blame] | 1160 | /* for AP+STA stats update */ |
| 1161 | if (in->wdi_notify) |
| 1162 | ipa3_ctx->uc_wdi_ctx.stats_notify = in->wdi_notify; |
| 1163 | else |
| 1164 | IPADBG("in->wdi_notify is null\n"); |
| 1165 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1166 | if (!ep->skip_ep_cfg) { |
| 1167 | if (ipa3_cfg_ep(ipa_ep_idx, &in->sys.ipa_ep_cfg)) { |
| 1168 | IPAERR("fail to configure EP.\n"); |
| 1169 | goto ipa_cfg_ep_fail; |
| 1170 | } |
| 1171 | IPADBG("ep configuration successful\n"); |
| 1172 | } else { |
| 1173 | IPADBG("Skipping endpoint configuration.\n"); |
| 1174 | } |
| 1175 | |
| 1176 | out->clnt_hdl = ipa_ep_idx; |
| 1177 | |
| 1178 | if (!ep->skip_ep_cfg && IPA_CLIENT_IS_PROD(in->sys.client)) |
| 1179 | ipa3_install_dflt_flt_rules(ipa_ep_idx); |
| 1180 | |
| 1181 | if (!ep->keep_ipa_awake) |
| 1182 | IPA_ACTIVE_CLIENTS_DEC_EP(in->sys.client); |
| 1183 | |
| 1184 | dma_free_coherent(ipa3_ctx->uc_pdev, cmd.size, cmd.base, cmd.phys_base); |
| 1185 | ep->uc_offload_state |= IPA_WDI_CONNECTED; |
| 1186 | IPADBG("client %d (ep: %d) connected\n", in->sys.client, ipa_ep_idx); |
| 1187 | |
| 1188 | return 0; |
| 1189 | |
| 1190 | ipa_cfg_ep_fail: |
| 1191 | memset(&ipa3_ctx->ep[ipa_ep_idx], 0, sizeof(struct ipa3_ep_context)); |
| 1192 | uc_timeout: |
| 1193 | ipa_release_uc_smmu_mappings(in->sys.client); |
| 1194 | dma_free_coherent(ipa3_ctx->uc_pdev, cmd.size, cmd.base, cmd.phys_base); |
| 1195 | dma_alloc_fail: |
| 1196 | IPA_ACTIVE_CLIENTS_DEC_EP(in->sys.client); |
| 1197 | fail: |
| 1198 | return result; |
| 1199 | } |
| 1200 | |
| 1201 | /** |
| 1202 | * ipa3_disconnect_wdi_pipe() - WDI client disconnect |
| 1203 | * @clnt_hdl: [in] opaque client handle assigned by IPA to client |
| 1204 | * |
| 1205 | * Returns: 0 on success, negative on failure |
| 1206 | * |
| 1207 | * Note: Should not be called from atomic context |
| 1208 | */ |
| 1209 | int ipa3_disconnect_wdi_pipe(u32 clnt_hdl) |
| 1210 | { |
| 1211 | int result = 0; |
| 1212 | struct ipa3_ep_context *ep; |
| 1213 | union IpaHwWdiCommonChCmdData_t tear; |
| 1214 | |
| 1215 | if (clnt_hdl >= ipa3_ctx->ipa_num_pipes || |
| 1216 | ipa3_ctx->ep[clnt_hdl].valid == 0) { |
| 1217 | IPAERR("bad parm, %d\n", clnt_hdl); |
| 1218 | return -EINVAL; |
| 1219 | } |
| 1220 | |
| 1221 | result = ipa3_uc_state_check(); |
| 1222 | if (result) |
| 1223 | return result; |
| 1224 | |
| 1225 | IPADBG("ep=%d\n", clnt_hdl); |
| 1226 | |
| 1227 | ep = &ipa3_ctx->ep[clnt_hdl]; |
| 1228 | |
| 1229 | if (ep->uc_offload_state != IPA_WDI_CONNECTED) { |
| 1230 | IPAERR("WDI channel bad state %d\n", ep->uc_offload_state); |
| 1231 | return -EFAULT; |
| 1232 | } |
| 1233 | |
| 1234 | if (!ep->keep_ipa_awake) |
| 1235 | IPA_ACTIVE_CLIENTS_INC_EP(ipa3_get_client_mapping(clnt_hdl)); |
| 1236 | |
| 1237 | tear.params.ipa_pipe_number = clnt_hdl; |
| 1238 | |
| 1239 | result = ipa3_uc_send_cmd(tear.raw32b, |
| 1240 | IPA_CPU_2_HW_CMD_WDI_TEAR_DOWN, |
| 1241 | IPA_HW_2_CPU_WDI_CMD_STATUS_SUCCESS, |
| 1242 | false, 10*HZ); |
| 1243 | |
| 1244 | if (result) { |
| 1245 | result = -EFAULT; |
| 1246 | goto uc_timeout; |
| 1247 | } |
| 1248 | |
| 1249 | ipa3_delete_dflt_flt_rules(clnt_hdl); |
| 1250 | ipa_release_uc_smmu_mappings(ep->client); |
| 1251 | |
| 1252 | memset(&ipa3_ctx->ep[clnt_hdl], 0, sizeof(struct ipa3_ep_context)); |
| 1253 | IPA_ACTIVE_CLIENTS_DEC_EP(ipa3_get_client_mapping(clnt_hdl)); |
| 1254 | |
| 1255 | IPADBG("client (ep: %d) disconnected\n", clnt_hdl); |
| 1256 | |
Skylar Chang | 6b41f8d | 2016-11-01 12:50:11 -0700 | [diff] [blame] | 1257 | /* for AP+STA stats update */ |
| 1258 | if (ipa3_ctx->uc_wdi_ctx.stats_notify) |
| 1259 | ipa3_ctx->uc_wdi_ctx.stats_notify = NULL; |
| 1260 | else |
| 1261 | IPADBG("uc_wdi_ctx.stats_notify already null\n"); |
| 1262 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1263 | uc_timeout: |
| 1264 | return result; |
| 1265 | } |
| 1266 | |
| 1267 | /** |
| 1268 | * ipa3_enable_wdi_pipe() - WDI client enable |
| 1269 | * @clnt_hdl: [in] opaque client handle assigned by IPA to client |
| 1270 | * |
| 1271 | * Returns: 0 on success, negative on failure |
| 1272 | * |
| 1273 | * Note: Should not be called from atomic context |
| 1274 | */ |
| 1275 | int ipa3_enable_wdi_pipe(u32 clnt_hdl) |
| 1276 | { |
| 1277 | int result = 0; |
| 1278 | struct ipa3_ep_context *ep; |
| 1279 | union IpaHwWdiCommonChCmdData_t enable; |
| 1280 | struct ipa_ep_cfg_holb holb_cfg; |
Skylar Chang | c958bdd | 2018-01-25 17:10:41 -0800 | [diff] [blame] | 1281 | struct ipahal_reg_endp_init_rsrc_grp rsrc_grp; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1282 | |
| 1283 | if (clnt_hdl >= ipa3_ctx->ipa_num_pipes || |
| 1284 | ipa3_ctx->ep[clnt_hdl].valid == 0) { |
| 1285 | IPAERR("bad parm, %d\n", clnt_hdl); |
| 1286 | return -EINVAL; |
| 1287 | } |
| 1288 | |
| 1289 | result = ipa3_uc_state_check(); |
| 1290 | if (result) |
| 1291 | return result; |
| 1292 | |
| 1293 | IPADBG("ep=%d\n", clnt_hdl); |
| 1294 | |
| 1295 | ep = &ipa3_ctx->ep[clnt_hdl]; |
| 1296 | |
| 1297 | if (ep->uc_offload_state != IPA_WDI_CONNECTED) { |
| 1298 | IPAERR("WDI channel bad state %d\n", ep->uc_offload_state); |
| 1299 | return -EFAULT; |
| 1300 | } |
| 1301 | IPA_ACTIVE_CLIENTS_INC_EP(ipa3_get_client_mapping(clnt_hdl)); |
| 1302 | enable.params.ipa_pipe_number = clnt_hdl; |
| 1303 | |
| 1304 | result = ipa3_uc_send_cmd(enable.raw32b, |
| 1305 | IPA_CPU_2_HW_CMD_WDI_CH_ENABLE, |
| 1306 | IPA_HW_2_CPU_WDI_CMD_STATUS_SUCCESS, |
| 1307 | false, 10*HZ); |
| 1308 | |
| 1309 | if (result) { |
| 1310 | result = -EFAULT; |
| 1311 | goto uc_timeout; |
| 1312 | } |
| 1313 | |
Skylar Chang | c958bdd | 2018-01-25 17:10:41 -0800 | [diff] [blame] | 1314 | /* Assign the resource group for pipe */ |
| 1315 | memset(&rsrc_grp, 0, sizeof(rsrc_grp)); |
| 1316 | rsrc_grp.rsrc_grp = ipa_get_ep_group(ep->client); |
| 1317 | if (rsrc_grp.rsrc_grp == -1) { |
| 1318 | IPAERR("invalid group for client %d\n", ep->client); |
| 1319 | WARN_ON(1); |
| 1320 | return -EFAULT; |
| 1321 | } |
| 1322 | |
| 1323 | IPADBG("Setting group %d for pipe %d\n", |
| 1324 | rsrc_grp.rsrc_grp, clnt_hdl); |
| 1325 | ipahal_write_reg_n_fields(IPA_ENDP_INIT_RSRC_GRP_n, clnt_hdl, |
| 1326 | &rsrc_grp); |
| 1327 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1328 | if (IPA_CLIENT_IS_CONS(ep->client)) { |
| 1329 | memset(&holb_cfg, 0, sizeof(holb_cfg)); |
| 1330 | holb_cfg.en = IPA_HOLB_TMR_DIS; |
| 1331 | holb_cfg.tmr_val = 0; |
| 1332 | result = ipa3_cfg_ep_holb(clnt_hdl, &holb_cfg); |
| 1333 | } |
| 1334 | IPA_ACTIVE_CLIENTS_DEC_EP(ipa3_get_client_mapping(clnt_hdl)); |
| 1335 | ep->uc_offload_state |= IPA_WDI_ENABLED; |
| 1336 | IPADBG("client (ep: %d) enabled\n", clnt_hdl); |
| 1337 | |
| 1338 | uc_timeout: |
| 1339 | return result; |
| 1340 | } |
| 1341 | |
| 1342 | /** |
| 1343 | * ipa3_disable_wdi_pipe() - WDI client disable |
| 1344 | * @clnt_hdl: [in] opaque client handle assigned by IPA to client |
| 1345 | * |
| 1346 | * Returns: 0 on success, negative on failure |
| 1347 | * |
| 1348 | * Note: Should not be called from atomic context |
| 1349 | */ |
| 1350 | int ipa3_disable_wdi_pipe(u32 clnt_hdl) |
| 1351 | { |
| 1352 | int result = 0; |
| 1353 | struct ipa3_ep_context *ep; |
| 1354 | union IpaHwWdiCommonChCmdData_t disable; |
| 1355 | struct ipa_ep_cfg_ctrl ep_cfg_ctrl; |
| 1356 | u32 prod_hdl; |
Skylar Chang | 1be75e1b | 2017-01-23 13:53:56 -0800 | [diff] [blame] | 1357 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1358 | if (clnt_hdl >= ipa3_ctx->ipa_num_pipes || |
| 1359 | ipa3_ctx->ep[clnt_hdl].valid == 0) { |
| 1360 | IPAERR("bad parm, %d\n", clnt_hdl); |
| 1361 | return -EINVAL; |
| 1362 | } |
| 1363 | |
| 1364 | result = ipa3_uc_state_check(); |
| 1365 | if (result) |
| 1366 | return result; |
| 1367 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1368 | IPADBG("ep=%d\n", clnt_hdl); |
| 1369 | |
| 1370 | ep = &ipa3_ctx->ep[clnt_hdl]; |
| 1371 | |
| 1372 | if (ep->uc_offload_state != (IPA_WDI_CONNECTED | IPA_WDI_ENABLED)) { |
| 1373 | IPAERR("WDI channel bad state %d\n", ep->uc_offload_state); |
| 1374 | return -EFAULT; |
| 1375 | } |
| 1376 | IPA_ACTIVE_CLIENTS_INC_EP(ipa3_get_client_mapping(clnt_hdl)); |
| 1377 | |
| 1378 | result = ipa3_disable_data_path(clnt_hdl); |
| 1379 | if (result) { |
| 1380 | IPAERR("disable data path failed res=%d clnt=%d.\n", result, |
| 1381 | clnt_hdl); |
| 1382 | result = -EPERM; |
| 1383 | goto uc_timeout; |
| 1384 | } |
| 1385 | |
| 1386 | /** |
| 1387 | * To avoid data stall during continuous SAP on/off before |
| 1388 | * setting delay to IPA Consumer pipe, remove delay and enable |
| 1389 | * holb on IPA Producer pipe |
| 1390 | */ |
| 1391 | if (IPA_CLIENT_IS_PROD(ep->client)) { |
Skylar Chang | e834a9e61 | 2016-12-22 14:20:32 -0800 | [diff] [blame] | 1392 | IPADBG("Stopping PROD channel - hdl=%d clnt=%d\n", |
| 1393 | clnt_hdl, ep->client); |
Skylar Chang | e834a9e61 | 2016-12-22 14:20:32 -0800 | [diff] [blame] | 1394 | /* remove delay on wlan-prod pipe*/ |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1395 | memset(&ep_cfg_ctrl, 0, sizeof(struct ipa_ep_cfg_ctrl)); |
| 1396 | ipa3_cfg_ep_ctrl(clnt_hdl, &ep_cfg_ctrl); |
| 1397 | |
| 1398 | prod_hdl = ipa3_get_ep_mapping(IPA_CLIENT_WLAN1_CONS); |
| 1399 | if (ipa3_ctx->ep[prod_hdl].valid == 1) { |
| 1400 | result = ipa3_disable_data_path(prod_hdl); |
| 1401 | if (result) { |
| 1402 | IPAERR("disable data path failed\n"); |
| 1403 | IPAERR("res=%d clnt=%d\n", |
| 1404 | result, prod_hdl); |
| 1405 | result = -EPERM; |
| 1406 | goto uc_timeout; |
| 1407 | } |
| 1408 | } |
| 1409 | usleep_range(IPA_UC_POLL_SLEEP_USEC * IPA_UC_POLL_SLEEP_USEC, |
| 1410 | IPA_UC_POLL_SLEEP_USEC * IPA_UC_POLL_SLEEP_USEC); |
Skylar Chang | c71b3c0 | 2016-11-29 13:36:24 -0800 | [diff] [blame] | 1411 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1412 | } |
| 1413 | |
| 1414 | disable.params.ipa_pipe_number = clnt_hdl; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1415 | result = ipa3_uc_send_cmd(disable.raw32b, |
| 1416 | IPA_CPU_2_HW_CMD_WDI_CH_DISABLE, |
| 1417 | IPA_HW_2_CPU_WDI_CMD_STATUS_SUCCESS, |
| 1418 | false, 10*HZ); |
| 1419 | |
| 1420 | if (result) { |
| 1421 | result = -EFAULT; |
| 1422 | goto uc_timeout; |
| 1423 | } |
| 1424 | |
| 1425 | /* Set the delay after disabling IPA Producer pipe */ |
| 1426 | if (IPA_CLIENT_IS_PROD(ep->client)) { |
| 1427 | memset(&ep_cfg_ctrl, 0, sizeof(struct ipa_ep_cfg_ctrl)); |
| 1428 | ep_cfg_ctrl.ipa_ep_delay = true; |
| 1429 | ipa3_cfg_ep_ctrl(clnt_hdl, &ep_cfg_ctrl); |
| 1430 | } |
| 1431 | IPA_ACTIVE_CLIENTS_DEC_EP(ipa3_get_client_mapping(clnt_hdl)); |
| 1432 | ep->uc_offload_state &= ~IPA_WDI_ENABLED; |
| 1433 | IPADBG("client (ep: %d) disabled\n", clnt_hdl); |
| 1434 | |
Skylar Chang | e834a9e61 | 2016-12-22 14:20:32 -0800 | [diff] [blame] | 1435 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1436 | uc_timeout: |
| 1437 | return result; |
| 1438 | } |
| 1439 | |
| 1440 | /** |
| 1441 | * ipa3_resume_wdi_pipe() - WDI client resume |
| 1442 | * @clnt_hdl: [in] opaque client handle assigned by IPA to client |
| 1443 | * |
| 1444 | * Returns: 0 on success, negative on failure |
| 1445 | * |
| 1446 | * Note: Should not be called from atomic context |
| 1447 | */ |
| 1448 | int ipa3_resume_wdi_pipe(u32 clnt_hdl) |
| 1449 | { |
| 1450 | int result = 0; |
| 1451 | struct ipa3_ep_context *ep; |
| 1452 | union IpaHwWdiCommonChCmdData_t resume; |
| 1453 | struct ipa_ep_cfg_ctrl ep_cfg_ctrl; |
| 1454 | |
| 1455 | if (clnt_hdl >= ipa3_ctx->ipa_num_pipes || |
| 1456 | ipa3_ctx->ep[clnt_hdl].valid == 0) { |
| 1457 | IPAERR("bad parm, %d\n", clnt_hdl); |
| 1458 | return -EINVAL; |
| 1459 | } |
| 1460 | |
| 1461 | result = ipa3_uc_state_check(); |
| 1462 | if (result) |
| 1463 | return result; |
| 1464 | |
| 1465 | IPADBG("ep=%d\n", clnt_hdl); |
| 1466 | |
| 1467 | ep = &ipa3_ctx->ep[clnt_hdl]; |
| 1468 | |
| 1469 | if (ep->uc_offload_state != (IPA_WDI_CONNECTED | IPA_WDI_ENABLED)) { |
| 1470 | IPAERR("WDI channel bad state %d\n", ep->uc_offload_state); |
| 1471 | return -EFAULT; |
| 1472 | } |
| 1473 | IPA_ACTIVE_CLIENTS_INC_EP(ipa3_get_client_mapping(clnt_hdl)); |
| 1474 | resume.params.ipa_pipe_number = clnt_hdl; |
| 1475 | |
| 1476 | result = ipa3_uc_send_cmd(resume.raw32b, |
| 1477 | IPA_CPU_2_HW_CMD_WDI_CH_RESUME, |
| 1478 | IPA_HW_2_CPU_WDI_CMD_STATUS_SUCCESS, |
| 1479 | false, 10*HZ); |
| 1480 | |
| 1481 | if (result) { |
| 1482 | result = -EFAULT; |
| 1483 | goto uc_timeout; |
| 1484 | } |
| 1485 | |
| 1486 | memset(&ep_cfg_ctrl, 0, sizeof(struct ipa_ep_cfg_ctrl)); |
| 1487 | result = ipa3_cfg_ep_ctrl(clnt_hdl, &ep_cfg_ctrl); |
| 1488 | if (result) |
| 1489 | IPAERR("client (ep: %d) fail un-susp/delay result=%d\n", |
| 1490 | clnt_hdl, result); |
| 1491 | else |
| 1492 | IPADBG("client (ep: %d) un-susp/delay\n", clnt_hdl); |
| 1493 | |
| 1494 | ep->uc_offload_state |= IPA_WDI_RESUMED; |
| 1495 | IPADBG("client (ep: %d) resumed\n", clnt_hdl); |
| 1496 | |
| 1497 | uc_timeout: |
| 1498 | return result; |
| 1499 | } |
| 1500 | |
Mohammed Javid | db111a3 | 2018-02-22 15:16:47 +0530 | [diff] [blame] | 1501 | static void ipa3_cfg_holb_wdi_consumer(bool is_enable) |
| 1502 | { |
| 1503 | u32 clnt_hdl; |
| 1504 | struct ipa_ep_cfg_holb holb_cfg; |
| 1505 | |
| 1506 | clnt_hdl = ipa3_get_ep_mapping(IPA_CLIENT_WLAN1_CONS); |
| 1507 | if (clnt_hdl < ipa3_ctx->ipa_num_pipes && |
| 1508 | ipa3_ctx->ep[clnt_hdl].valid == 1) { |
| 1509 | memset(&holb_cfg, 0, sizeof(holb_cfg)); |
| 1510 | if (is_enable) |
| 1511 | holb_cfg.en = IPA_HOLB_TMR_EN; |
| 1512 | else |
| 1513 | holb_cfg.en = IPA_HOLB_TMR_DIS; |
| 1514 | holb_cfg.tmr_val = 0; |
| 1515 | ipa3_cfg_ep_holb(clnt_hdl, &holb_cfg); |
| 1516 | } |
| 1517 | } |
| 1518 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1519 | /** |
| 1520 | * ipa3_suspend_wdi_pipe() - WDI client suspend |
| 1521 | * @clnt_hdl: [in] opaque client handle assigned by IPA to client |
| 1522 | * |
| 1523 | * Returns: 0 on success, negative on failure |
| 1524 | * |
| 1525 | * Note: Should not be called from atomic context |
| 1526 | */ |
| 1527 | int ipa3_suspend_wdi_pipe(u32 clnt_hdl) |
| 1528 | { |
| 1529 | int result = 0; |
| 1530 | struct ipa3_ep_context *ep; |
| 1531 | union IpaHwWdiCommonChCmdData_t suspend; |
| 1532 | struct ipa_ep_cfg_ctrl ep_cfg_ctrl; |
Skylar Chang | 019df56 | 2017-03-08 10:45:45 -0800 | [diff] [blame] | 1533 | u32 source_pipe_bitmask = 0; |
| 1534 | bool disable_force_clear = false; |
| 1535 | struct ipahal_ep_cfg_ctrl_scnd ep_ctrl_scnd = { 0 }; |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1536 | |
| 1537 | if (clnt_hdl >= ipa3_ctx->ipa_num_pipes || |
| 1538 | ipa3_ctx->ep[clnt_hdl].valid == 0) { |
| 1539 | IPAERR("bad parm, %d\n", clnt_hdl); |
| 1540 | return -EINVAL; |
| 1541 | } |
| 1542 | |
| 1543 | result = ipa3_uc_state_check(); |
| 1544 | if (result) |
| 1545 | return result; |
| 1546 | |
| 1547 | IPADBG("ep=%d\n", clnt_hdl); |
| 1548 | |
| 1549 | ep = &ipa3_ctx->ep[clnt_hdl]; |
| 1550 | |
| 1551 | if (ep->uc_offload_state != (IPA_WDI_CONNECTED | IPA_WDI_ENABLED | |
| 1552 | IPA_WDI_RESUMED)) { |
| 1553 | IPAERR("WDI channel bad state %d\n", ep->uc_offload_state); |
| 1554 | return -EFAULT; |
| 1555 | } |
| 1556 | |
| 1557 | suspend.params.ipa_pipe_number = clnt_hdl; |
| 1558 | |
| 1559 | if (IPA_CLIENT_IS_PROD(ep->client)) { |
Skylar Chang | 019df56 | 2017-03-08 10:45:45 -0800 | [diff] [blame] | 1560 | /* |
| 1561 | * For WDI 2.0 need to ensure pipe will be empty before suspend |
| 1562 | * as IPA uC will fail to suspend the pipe otherwise. |
| 1563 | */ |
| 1564 | if (ipa3_ctx->ipa_wdi2) { |
| 1565 | source_pipe_bitmask = 1 << |
| 1566 | ipa3_get_ep_mapping(ep->client); |
| 1567 | result = ipa3_enable_force_clear(clnt_hdl, |
| 1568 | false, source_pipe_bitmask); |
| 1569 | if (result) { |
| 1570 | /* |
| 1571 | * assuming here modem SSR, AP can remove |
| 1572 | * the delay in this case |
| 1573 | */ |
| 1574 | IPAERR("failed to force clear %d\n", result); |
| 1575 | IPAERR("remove delay from SCND reg\n"); |
| 1576 | ep_ctrl_scnd.endp_delay = false; |
| 1577 | ipahal_write_reg_n_fields( |
| 1578 | IPA_ENDP_INIT_CTRL_SCND_n, clnt_hdl, |
| 1579 | &ep_ctrl_scnd); |
| 1580 | } else { |
| 1581 | disable_force_clear = true; |
| 1582 | } |
| 1583 | } |
| 1584 | |
Mohammed Javid | db111a3 | 2018-02-22 15:16:47 +0530 | [diff] [blame] | 1585 | /* Enabling HOLB on WDI consumer pipe */ |
| 1586 | ipa3_cfg_holb_wdi_consumer(true); |
| 1587 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1588 | IPADBG("Post suspend event first for IPA Producer\n"); |
| 1589 | IPADBG("Client: %d clnt_hdl: %d\n", ep->client, clnt_hdl); |
| 1590 | result = ipa3_uc_send_cmd(suspend.raw32b, |
| 1591 | IPA_CPU_2_HW_CMD_WDI_CH_SUSPEND, |
| 1592 | IPA_HW_2_CPU_WDI_CMD_STATUS_SUCCESS, |
| 1593 | false, 10*HZ); |
| 1594 | |
| 1595 | if (result) { |
| 1596 | result = -EFAULT; |
Mohammed Javid | db111a3 | 2018-02-22 15:16:47 +0530 | [diff] [blame] | 1597 | /* Disabling HOLB on WDI consumer pipe */ |
| 1598 | ipa3_cfg_holb_wdi_consumer(false); |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1599 | goto uc_timeout; |
| 1600 | } |
Mohammed Javid | db111a3 | 2018-02-22 15:16:47 +0530 | [diff] [blame] | 1601 | /* Disabling HOLB on WDI consumer pipe */ |
| 1602 | ipa3_cfg_holb_wdi_consumer(false); |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1603 | } |
| 1604 | |
| 1605 | memset(&ep_cfg_ctrl, 0, sizeof(struct ipa_ep_cfg_ctrl)); |
| 1606 | if (IPA_CLIENT_IS_CONS(ep->client)) { |
Skylar Chang | a699afd | 2017-06-06 10:06:21 -0700 | [diff] [blame] | 1607 | if (ipa3_ctx->ipa_hw_type < IPA_HW_v4_0) { |
| 1608 | ep_cfg_ctrl.ipa_ep_suspend = true; |
| 1609 | result = ipa3_cfg_ep_ctrl(clnt_hdl, &ep_cfg_ctrl); |
| 1610 | if (result) |
| 1611 | IPAERR("(ep: %d) failed to suspend result=%d\n", |
| 1612 | clnt_hdl, result); |
| 1613 | else |
| 1614 | IPADBG("(ep: %d) suspended\n", clnt_hdl); |
| 1615 | } |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1616 | } else { |
| 1617 | ep_cfg_ctrl.ipa_ep_delay = true; |
| 1618 | result = ipa3_cfg_ep_ctrl(clnt_hdl, &ep_cfg_ctrl); |
| 1619 | if (result) |
| 1620 | IPAERR("client (ep: %d) failed to delay result=%d\n", |
| 1621 | clnt_hdl, result); |
| 1622 | else |
| 1623 | IPADBG("client (ep: %d) delayed\n", clnt_hdl); |
| 1624 | } |
| 1625 | |
| 1626 | if (IPA_CLIENT_IS_CONS(ep->client)) { |
| 1627 | result = ipa3_uc_send_cmd(suspend.raw32b, |
| 1628 | IPA_CPU_2_HW_CMD_WDI_CH_SUSPEND, |
| 1629 | IPA_HW_2_CPU_WDI_CMD_STATUS_SUCCESS, |
| 1630 | false, 10*HZ); |
| 1631 | |
| 1632 | if (result) { |
| 1633 | result = -EFAULT; |
| 1634 | goto uc_timeout; |
| 1635 | } |
| 1636 | } |
| 1637 | |
Skylar Chang | 019df56 | 2017-03-08 10:45:45 -0800 | [diff] [blame] | 1638 | if (disable_force_clear) |
| 1639 | ipa3_disable_force_clear(clnt_hdl); |
| 1640 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1641 | ipa3_ctx->tag_process_before_gating = true; |
| 1642 | IPA_ACTIVE_CLIENTS_DEC_EP(ipa3_get_client_mapping(clnt_hdl)); |
| 1643 | ep->uc_offload_state &= ~IPA_WDI_RESUMED; |
| 1644 | IPADBG("client (ep: %d) suspended\n", clnt_hdl); |
| 1645 | |
| 1646 | uc_timeout: |
| 1647 | return result; |
| 1648 | } |
| 1649 | |
Skylar Chang | 6b41f8d | 2016-11-01 12:50:11 -0700 | [diff] [blame] | 1650 | /** |
| 1651 | * ipa_broadcast_wdi_quota_reach_ind() - quota reach |
| 1652 | * @uint32_t fid: [in] input netdev ID |
| 1653 | * @uint64_t num_bytes: [in] used bytes |
| 1654 | * |
| 1655 | * Returns: 0 on success, negative on failure |
| 1656 | */ |
| 1657 | int ipa3_broadcast_wdi_quota_reach_ind(uint32_t fid, |
| 1658 | uint64_t num_bytes) |
| 1659 | { |
| 1660 | IPAERR("Quota reached indication on fid(%d) Mbytes(%lu)\n", |
| 1661 | fid, |
| 1662 | (unsigned long int) num_bytes); |
| 1663 | ipa3_broadcast_quota_reach_ind(0, IPA_UPSTEAM_WLAN); |
| 1664 | return 0; |
| 1665 | } |
| 1666 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1667 | int ipa3_write_qmapid_wdi_pipe(u32 clnt_hdl, u8 qmap_id) |
| 1668 | { |
| 1669 | int result = 0; |
| 1670 | struct ipa3_ep_context *ep; |
| 1671 | union IpaHwWdiRxExtCfgCmdData_t qmap; |
| 1672 | |
| 1673 | if (clnt_hdl >= ipa3_ctx->ipa_num_pipes || |
| 1674 | ipa3_ctx->ep[clnt_hdl].valid == 0) { |
Utkarsh Saxena | e978281 | 2017-05-26 17:20:32 +0530 | [diff] [blame] | 1675 | IPAERR_RL("bad parm, %d\n", clnt_hdl); |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1676 | return -EINVAL; |
| 1677 | } |
| 1678 | |
| 1679 | result = ipa3_uc_state_check(); |
| 1680 | if (result) |
| 1681 | return result; |
| 1682 | |
| 1683 | IPADBG("ep=%d\n", clnt_hdl); |
| 1684 | |
| 1685 | ep = &ipa3_ctx->ep[clnt_hdl]; |
| 1686 | |
| 1687 | if (!(ep->uc_offload_state & IPA_WDI_CONNECTED)) { |
Utkarsh Saxena | e978281 | 2017-05-26 17:20:32 +0530 | [diff] [blame] | 1688 | IPAERR_RL("WDI channel bad state %d\n", ep->uc_offload_state); |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1689 | return -EFAULT; |
| 1690 | } |
| 1691 | IPA_ACTIVE_CLIENTS_INC_EP(ipa3_get_client_mapping(clnt_hdl)); |
| 1692 | qmap.params.ipa_pipe_number = clnt_hdl; |
| 1693 | qmap.params.qmap_id = qmap_id; |
| 1694 | |
| 1695 | result = ipa3_uc_send_cmd(qmap.raw32b, |
| 1696 | IPA_CPU_2_HW_CMD_WDI_RX_EXT_CFG, |
| 1697 | IPA_HW_2_CPU_WDI_CMD_STATUS_SUCCESS, |
| 1698 | false, 10*HZ); |
| 1699 | |
| 1700 | if (result) { |
| 1701 | result = -EFAULT; |
| 1702 | goto uc_timeout; |
| 1703 | } |
| 1704 | IPA_ACTIVE_CLIENTS_DEC_EP(ipa3_get_client_mapping(clnt_hdl)); |
| 1705 | |
| 1706 | IPADBG("client (ep: %d) qmap_id %d updated\n", clnt_hdl, qmap_id); |
| 1707 | |
| 1708 | uc_timeout: |
| 1709 | return result; |
| 1710 | } |
| 1711 | |
| 1712 | /** |
| 1713 | * ipa3_uc_reg_rdyCB() - To register uC |
| 1714 | * ready CB if uC not ready |
| 1715 | * @inout: [in/out] input/output parameters |
| 1716 | * from/to client |
| 1717 | * |
| 1718 | * Returns: 0 on success, negative on failure |
| 1719 | * |
| 1720 | */ |
| 1721 | int ipa3_uc_reg_rdyCB( |
| 1722 | struct ipa_wdi_uc_ready_params *inout) |
| 1723 | { |
| 1724 | int result = 0; |
| 1725 | |
| 1726 | if (inout == NULL) { |
| 1727 | IPAERR("bad parm. inout=%p ", inout); |
| 1728 | return -EINVAL; |
| 1729 | } |
| 1730 | |
| 1731 | result = ipa3_uc_state_check(); |
| 1732 | if (result) { |
| 1733 | inout->is_uC_ready = false; |
| 1734 | ipa3_ctx->uc_wdi_ctx.uc_ready_cb = inout->notify; |
| 1735 | ipa3_ctx->uc_wdi_ctx.priv = inout->priv; |
| 1736 | } else { |
| 1737 | inout->is_uC_ready = true; |
| 1738 | } |
| 1739 | |
| 1740 | return 0; |
| 1741 | } |
| 1742 | |
| 1743 | /** |
| 1744 | * ipa3_uc_dereg_rdyCB() - To de-register uC ready CB |
| 1745 | * |
| 1746 | * Returns: 0 on success, negative on failure |
| 1747 | * |
| 1748 | */ |
| 1749 | int ipa3_uc_dereg_rdyCB(void) |
| 1750 | { |
| 1751 | ipa3_ctx->uc_wdi_ctx.uc_ready_cb = NULL; |
| 1752 | ipa3_ctx->uc_wdi_ctx.priv = NULL; |
| 1753 | |
| 1754 | return 0; |
| 1755 | } |
| 1756 | |
| 1757 | |
| 1758 | /** |
| 1759 | * ipa3_uc_wdi_get_dbpa() - To retrieve |
| 1760 | * doorbell physical address of wlan pipes |
| 1761 | * @param: [in/out] input/output parameters |
| 1762 | * from/to client |
| 1763 | * |
| 1764 | * Returns: 0 on success, negative on failure |
| 1765 | * |
| 1766 | */ |
| 1767 | int ipa3_uc_wdi_get_dbpa( |
| 1768 | struct ipa_wdi_db_params *param) |
| 1769 | { |
| 1770 | if (param == NULL || param->client >= IPA_CLIENT_MAX) { |
| 1771 | IPAERR("bad parm. param=%p ", param); |
| 1772 | if (param) |
| 1773 | IPAERR("client = %d\n", param->client); |
| 1774 | return -EINVAL; |
| 1775 | } |
| 1776 | |
| 1777 | if (IPA_CLIENT_IS_CONS(param->client)) { |
| 1778 | param->uc_door_bell_pa = ipa3_ctx->ipa_wrapper_base + |
| 1779 | ipahal_get_reg_base() + |
| 1780 | ipahal_get_reg_mn_ofst(IPA_UC_MAILBOX_m_n, |
| 1781 | IPA_HW_WDI_TX_MBOX_START_INDEX/32, |
| 1782 | IPA_HW_WDI_TX_MBOX_START_INDEX % 32); |
| 1783 | } else { |
| 1784 | param->uc_door_bell_pa = ipa3_ctx->ipa_wrapper_base + |
| 1785 | ipahal_get_reg_base() + |
| 1786 | ipahal_get_reg_mn_ofst(IPA_UC_MAILBOX_m_n, |
| 1787 | IPA_HW_WDI_RX_MBOX_START_INDEX/32, |
| 1788 | IPA_HW_WDI_RX_MBOX_START_INDEX % 32); |
| 1789 | } |
| 1790 | |
| 1791 | return 0; |
| 1792 | } |
| 1793 | |
| 1794 | static void ipa3_uc_wdi_loaded_handler(void) |
| 1795 | { |
| 1796 | if (!ipa3_ctx) { |
| 1797 | IPAERR("IPA ctx is null\n"); |
| 1798 | return; |
| 1799 | } |
| 1800 | |
| 1801 | if (ipa3_ctx->uc_wdi_ctx.uc_ready_cb) { |
| 1802 | ipa3_ctx->uc_wdi_ctx.uc_ready_cb( |
| 1803 | ipa3_ctx->uc_wdi_ctx.priv); |
| 1804 | |
| 1805 | ipa3_ctx->uc_wdi_ctx.uc_ready_cb = |
| 1806 | NULL; |
| 1807 | ipa3_ctx->uc_wdi_ctx.priv = NULL; |
| 1808 | } |
| 1809 | } |
| 1810 | |
| 1811 | int ipa3_create_wdi_mapping(u32 num_buffers, struct ipa_wdi_buffer_info *info) |
| 1812 | { |
Skylar Chang | efc0a0f | 2018-03-29 11:17:40 -0700 | [diff] [blame] | 1813 | struct ipa_smmu_cb_ctx *cb = ipa3_get_smmu_ctx(IPA_SMMU_CB_WLAN); |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1814 | int i; |
| 1815 | int ret = 0; |
| 1816 | int prot = IOMMU_READ | IOMMU_WRITE; |
| 1817 | |
| 1818 | if (!info) { |
| 1819 | IPAERR("info = %p\n", info); |
| 1820 | return -EINVAL; |
| 1821 | } |
| 1822 | |
| 1823 | if (!cb->valid) { |
| 1824 | IPAERR("No SMMU CB setup\n"); |
| 1825 | return -EINVAL; |
| 1826 | } |
| 1827 | |
Michael Adisumarta | 93e9752 | 2017-10-06 15:49:46 -0700 | [diff] [blame] | 1828 | if (ipa3_ctx->s1_bypass_arr[IPA_SMMU_CB_WLAN]) { |
| 1829 | IPAERR("IPA SMMU not enabled\n"); |
| 1830 | return -EINVAL; |
| 1831 | } |
| 1832 | |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1833 | for (i = 0; i < num_buffers; i++) { |
| 1834 | IPADBG("i=%d pa=0x%pa iova=0x%lx sz=0x%zx\n", i, |
| 1835 | &info[i].pa, info[i].iova, info[i].size); |
| 1836 | info[i].result = ipa3_iommu_map(cb->iommu, |
| 1837 | rounddown(info[i].iova, PAGE_SIZE), |
| 1838 | rounddown(info[i].pa, PAGE_SIZE), |
| 1839 | roundup(info[i].size + info[i].pa - |
| 1840 | rounddown(info[i].pa, PAGE_SIZE), PAGE_SIZE), |
| 1841 | prot); |
| 1842 | } |
| 1843 | |
| 1844 | return ret; |
| 1845 | } |
| 1846 | |
| 1847 | int ipa3_release_wdi_mapping(u32 num_buffers, struct ipa_wdi_buffer_info *info) |
| 1848 | { |
Skylar Chang | efc0a0f | 2018-03-29 11:17:40 -0700 | [diff] [blame] | 1849 | struct ipa_smmu_cb_ctx *cb = ipa3_get_smmu_ctx(IPA_SMMU_CB_WLAN); |
Amir Levy | 9659e59 | 2016-10-27 18:08:27 +0300 | [diff] [blame] | 1850 | int i; |
| 1851 | int ret = 0; |
| 1852 | |
| 1853 | if (!info) { |
| 1854 | IPAERR("info = %p\n", info); |
| 1855 | return -EINVAL; |
| 1856 | } |
| 1857 | |
| 1858 | if (!cb->valid) { |
| 1859 | IPAERR("No SMMU CB setup\n"); |
| 1860 | return -EINVAL; |
| 1861 | } |
| 1862 | |
| 1863 | for (i = 0; i < num_buffers; i++) { |
| 1864 | IPADBG("i=%d pa=0x%pa iova=0x%lx sz=0x%zx\n", i, |
| 1865 | &info[i].pa, info[i].iova, info[i].size); |
| 1866 | info[i].result = iommu_unmap(cb->iommu, |
| 1867 | rounddown(info[i].iova, PAGE_SIZE), |
| 1868 | roundup(info[i].size + info[i].pa - |
| 1869 | rounddown(info[i].pa, PAGE_SIZE), PAGE_SIZE)); |
| 1870 | } |
| 1871 | |
| 1872 | return ret; |
| 1873 | } |