Sandeep Nair | 41f93af | 2014-02-28 10:47:50 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Keystone Navigator QMSS driver internal header |
| 3 | * |
| 4 | * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com |
| 5 | * Author: Sandeep Nair <sandeep_n@ti.com> |
| 6 | * Cyril Chemparathy <cyril@ti.com> |
| 7 | * Santosh Shilimkar <santosh.shilimkar@ti.com> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU General Public License |
| 11 | * version 2 as published by the Free Software Foundation. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * General Public License for more details. |
| 17 | */ |
| 18 | |
| 19 | #ifndef __KNAV_QMSS_H__ |
| 20 | #define __KNAV_QMSS_H__ |
| 21 | |
| 22 | #define THRESH_GTE BIT(7) |
| 23 | #define THRESH_LT 0 |
| 24 | |
| 25 | #define PDSP_CTRL_PC_MASK 0xffff0000 |
| 26 | #define PDSP_CTRL_SOFT_RESET BIT(0) |
| 27 | #define PDSP_CTRL_ENABLE BIT(1) |
| 28 | #define PDSP_CTRL_RUNNING BIT(15) |
| 29 | |
| 30 | #define ACC_MAX_CHANNEL 48 |
| 31 | #define ACC_DEFAULT_PERIOD 25 /* usecs */ |
| 32 | |
| 33 | #define ACC_CHANNEL_INT_BASE 2 |
| 34 | |
| 35 | #define ACC_LIST_ENTRY_TYPE 1 |
| 36 | #define ACC_LIST_ENTRY_WORDS (1 << ACC_LIST_ENTRY_TYPE) |
| 37 | #define ACC_LIST_ENTRY_QUEUE_IDX 0 |
| 38 | #define ACC_LIST_ENTRY_DESC_IDX (ACC_LIST_ENTRY_WORDS - 1) |
| 39 | |
| 40 | #define ACC_CMD_DISABLE_CHANNEL 0x80 |
| 41 | #define ACC_CMD_ENABLE_CHANNEL 0x81 |
| 42 | #define ACC_CFG_MULTI_QUEUE BIT(21) |
| 43 | |
| 44 | #define ACC_INTD_OFFSET_EOI (0x0010) |
| 45 | #define ACC_INTD_OFFSET_COUNT(ch) (0x0300 + 4 * (ch)) |
| 46 | #define ACC_INTD_OFFSET_STATUS(ch) (0x0200 + 4 * ((ch) / 32)) |
| 47 | |
| 48 | #define RANGE_MAX_IRQS 64 |
| 49 | |
| 50 | #define ACC_DESCS_MAX SZ_1K |
| 51 | #define ACC_DESCS_MASK (ACC_DESCS_MAX - 1) |
| 52 | #define DESC_SIZE_MASK 0xful |
| 53 | #define DESC_PTR_MASK (~DESC_SIZE_MASK) |
| 54 | |
| 55 | #define KNAV_NAME_SIZE 32 |
| 56 | |
| 57 | enum knav_acc_result { |
| 58 | ACC_RET_IDLE, |
| 59 | ACC_RET_SUCCESS, |
| 60 | ACC_RET_INVALID_COMMAND, |
| 61 | ACC_RET_INVALID_CHANNEL, |
| 62 | ACC_RET_INACTIVE_CHANNEL, |
| 63 | ACC_RET_ACTIVE_CHANNEL, |
| 64 | ACC_RET_INVALID_QUEUE, |
| 65 | ACC_RET_INVALID_RET, |
| 66 | }; |
| 67 | |
| 68 | struct knav_reg_config { |
| 69 | u32 revision; |
| 70 | u32 __pad1; |
| 71 | u32 divert; |
| 72 | u32 link_ram_base0; |
| 73 | u32 link_ram_size0; |
| 74 | u32 link_ram_base1; |
| 75 | u32 __pad2[2]; |
| 76 | u32 starvation[0]; |
| 77 | }; |
| 78 | |
| 79 | struct knav_reg_region { |
| 80 | u32 base; |
| 81 | u32 start_index; |
| 82 | u32 size_count; |
| 83 | u32 __pad; |
| 84 | }; |
| 85 | |
| 86 | struct knav_reg_pdsp_regs { |
| 87 | u32 control; |
| 88 | u32 status; |
| 89 | u32 cycle_count; |
| 90 | u32 stall_count; |
| 91 | }; |
| 92 | |
| 93 | struct knav_reg_acc_command { |
| 94 | u32 command; |
| 95 | u32 queue_mask; |
| 96 | u32 list_phys; |
| 97 | u32 queue_num; |
| 98 | u32 timer_config; |
| 99 | }; |
| 100 | |
| 101 | struct knav_link_ram_block { |
| 102 | dma_addr_t phys; |
| 103 | void *virt; |
| 104 | size_t size; |
| 105 | }; |
| 106 | |
| 107 | struct knav_acc_info { |
| 108 | u32 pdsp_id; |
| 109 | u32 start_channel; |
| 110 | u32 list_entries; |
| 111 | u32 pacing_mode; |
| 112 | u32 timer_count; |
| 113 | int mem_size; |
| 114 | int list_size; |
| 115 | struct knav_pdsp_info *pdsp; |
| 116 | }; |
| 117 | |
| 118 | struct knav_acc_channel { |
| 119 | u32 channel; |
| 120 | u32 list_index; |
| 121 | u32 open_mask; |
| 122 | u32 *list_cpu[2]; |
| 123 | dma_addr_t list_dma[2]; |
| 124 | char name[KNAV_NAME_SIZE]; |
| 125 | atomic_t retrigger_count; |
| 126 | }; |
| 127 | |
| 128 | struct knav_pdsp_info { |
| 129 | const char *name; |
| 130 | struct knav_reg_pdsp_regs __iomem *regs; |
| 131 | union { |
| 132 | void __iomem *command; |
| 133 | struct knav_reg_acc_command __iomem *acc_command; |
| 134 | u32 __iomem *qos_command; |
| 135 | }; |
| 136 | void __iomem *intd; |
| 137 | u32 __iomem *iram; |
Sandeep Nair | 41f93af | 2014-02-28 10:47:50 -0500 | [diff] [blame] | 138 | u32 id; |
| 139 | struct list_head list; |
Murali Karicheri | 0450169 | 2015-10-13 13:49:04 -0700 | [diff] [blame] | 140 | bool loaded; |
| 141 | bool started; |
Sandeep Nair | 41f93af | 2014-02-28 10:47:50 -0500 | [diff] [blame] | 142 | }; |
| 143 | |
| 144 | struct knav_qmgr_info { |
| 145 | unsigned start_queue; |
| 146 | unsigned num_queues; |
| 147 | struct knav_reg_config __iomem *reg_config; |
| 148 | struct knav_reg_region __iomem *reg_region; |
| 149 | struct knav_reg_queue __iomem *reg_push, *reg_pop, *reg_peek; |
| 150 | void __iomem *reg_status; |
| 151 | struct list_head list; |
| 152 | }; |
| 153 | |
| 154 | #define KNAV_NUM_LINKRAM 2 |
| 155 | |
| 156 | /** |
| 157 | * struct knav_queue_stats: queue statistics |
| 158 | * pushes: number of push operations |
| 159 | * pops: number of pop operations |
| 160 | * push_errors: number of push errors |
| 161 | * pop_errors: number of pop errors |
| 162 | * notifies: notifier counts |
| 163 | */ |
| 164 | struct knav_queue_stats { |
| 165 | atomic_t pushes; |
| 166 | atomic_t pops; |
| 167 | atomic_t push_errors; |
| 168 | atomic_t pop_errors; |
| 169 | atomic_t notifies; |
| 170 | }; |
| 171 | |
| 172 | /** |
| 173 | * struct knav_reg_queue: queue registers |
| 174 | * @entry_count: valid entries in the queue |
| 175 | * @byte_count: total byte count in thhe queue |
| 176 | * @packet_size: packet size for the queue |
| 177 | * @ptr_size_thresh: packet pointer size threshold |
| 178 | */ |
| 179 | struct knav_reg_queue { |
| 180 | u32 entry_count; |
| 181 | u32 byte_count; |
| 182 | u32 packet_size; |
| 183 | u32 ptr_size_thresh; |
| 184 | }; |
| 185 | |
| 186 | /** |
| 187 | * struct knav_region: qmss region info |
| 188 | * @dma_start, dma_end: start and end dma address |
| 189 | * @virt_start, virt_end: start and end virtual address |
| 190 | * @desc_size: descriptor size |
| 191 | * @used_desc: consumed descriptors |
| 192 | * @id: region number |
| 193 | * @num_desc: total descriptors |
| 194 | * @link_index: index of the first descriptor |
| 195 | * @name: region name |
| 196 | * @list: instance in the device's region list |
| 197 | * @pools: list of descriptor pools in the region |
| 198 | */ |
| 199 | struct knav_region { |
| 200 | dma_addr_t dma_start, dma_end; |
| 201 | void *virt_start, *virt_end; |
| 202 | unsigned desc_size; |
| 203 | unsigned used_desc; |
| 204 | unsigned id; |
| 205 | unsigned num_desc; |
| 206 | unsigned link_index; |
| 207 | const char *name; |
| 208 | struct list_head list; |
| 209 | struct list_head pools; |
| 210 | }; |
| 211 | |
| 212 | /** |
| 213 | * struct knav_pool: qmss pools |
| 214 | * @dev: device pointer |
| 215 | * @region: qmss region info |
| 216 | * @queue: queue registers |
| 217 | * @kdev: qmss device pointer |
| 218 | * @region_offset: offset from the base |
| 219 | * @num_desc: total descriptors |
| 220 | * @desc_size: descriptor size |
| 221 | * @region_id: region number |
| 222 | * @name: pool name |
| 223 | * @list: list head |
| 224 | * @region_inst: instance in the region's pool list |
| 225 | */ |
| 226 | struct knav_pool { |
| 227 | struct device *dev; |
| 228 | struct knav_region *region; |
| 229 | struct knav_queue *queue; |
| 230 | struct knav_device *kdev; |
| 231 | int region_offset; |
| 232 | int num_desc; |
| 233 | int desc_size; |
| 234 | int region_id; |
| 235 | const char *name; |
| 236 | struct list_head list; |
| 237 | struct list_head region_inst; |
| 238 | }; |
| 239 | |
| 240 | /** |
| 241 | * struct knav_queue_inst: qmss queue instace properties |
| 242 | * @descs: descriptor pointer |
| 243 | * @desc_head, desc_tail, desc_count: descriptor counters |
| 244 | * @acc: accumulator channel pointer |
| 245 | * @kdev: qmss device pointer |
| 246 | * @range: range info |
| 247 | * @qmgr: queue manager info |
| 248 | * @id: queue instace id |
| 249 | * @irq_num: irq line number |
| 250 | * @notify_needed: notifier needed based on queue type |
| 251 | * @num_notifiers: total notifiers |
| 252 | * @handles: list head |
| 253 | * @name: queue instance name |
| 254 | * @irq_name: irq line name |
| 255 | */ |
| 256 | struct knav_queue_inst { |
| 257 | u32 *descs; |
| 258 | atomic_t desc_head, desc_tail, desc_count; |
| 259 | struct knav_acc_channel *acc; |
| 260 | struct knav_device *kdev; |
| 261 | struct knav_range_info *range; |
| 262 | struct knav_qmgr_info *qmgr; |
| 263 | u32 id; |
| 264 | int irq_num; |
| 265 | int notify_needed; |
| 266 | atomic_t num_notifiers; |
| 267 | struct list_head handles; |
| 268 | const char *name; |
| 269 | const char *irq_name; |
| 270 | }; |
| 271 | |
| 272 | /** |
| 273 | * struct knav_queue: qmss queue properties |
| 274 | * @reg_push, reg_pop, reg_peek: push, pop queue registers |
| 275 | * @inst: qmss queue instace properties |
| 276 | * @notifier_fn: notifier function |
| 277 | * @notifier_fn_arg: notifier function argument |
| 278 | * @notifier_enabled: notier enabled for a give queue |
| 279 | * @rcu: rcu head |
| 280 | * @flags: queue flags |
| 281 | * @list: list head |
| 282 | */ |
| 283 | struct knav_queue { |
| 284 | struct knav_reg_queue __iomem *reg_push, *reg_pop, *reg_peek; |
| 285 | struct knav_queue_inst *inst; |
| 286 | struct knav_queue_stats stats; |
| 287 | knav_queue_notify_fn notifier_fn; |
| 288 | void *notifier_fn_arg; |
| 289 | atomic_t notifier_enabled; |
| 290 | struct rcu_head rcu; |
| 291 | unsigned flags; |
| 292 | struct list_head list; |
| 293 | }; |
| 294 | |
| 295 | struct knav_device { |
| 296 | struct device *dev; |
| 297 | unsigned base_id; |
| 298 | unsigned num_queues; |
| 299 | unsigned num_queues_in_use; |
| 300 | unsigned inst_shift; |
| 301 | struct knav_link_ram_block link_rams[KNAV_NUM_LINKRAM]; |
| 302 | void *instances; |
| 303 | struct list_head regions; |
| 304 | struct list_head queue_ranges; |
| 305 | struct list_head pools; |
| 306 | struct list_head pdsps; |
| 307 | struct list_head qmgrs; |
| 308 | }; |
| 309 | |
| 310 | struct knav_range_ops { |
| 311 | int (*init_range)(struct knav_range_info *range); |
| 312 | int (*free_range)(struct knav_range_info *range); |
| 313 | int (*init_queue)(struct knav_range_info *range, |
| 314 | struct knav_queue_inst *inst); |
| 315 | int (*open_queue)(struct knav_range_info *range, |
| 316 | struct knav_queue_inst *inst, unsigned flags); |
| 317 | int (*close_queue)(struct knav_range_info *range, |
| 318 | struct knav_queue_inst *inst); |
| 319 | int (*set_notify)(struct knav_range_info *range, |
| 320 | struct knav_queue_inst *inst, bool enabled); |
| 321 | }; |
| 322 | |
| 323 | struct knav_irq_info { |
| 324 | int irq; |
| 325 | u32 cpu_map; |
| 326 | }; |
| 327 | |
| 328 | struct knav_range_info { |
| 329 | const char *name; |
| 330 | struct knav_device *kdev; |
| 331 | unsigned queue_base; |
| 332 | unsigned num_queues; |
| 333 | void *queue_base_inst; |
| 334 | unsigned flags; |
| 335 | struct list_head list; |
| 336 | struct knav_range_ops *ops; |
| 337 | struct knav_acc_info acc_info; |
| 338 | struct knav_acc_channel *acc; |
| 339 | unsigned num_irqs; |
| 340 | struct knav_irq_info irqs[RANGE_MAX_IRQS]; |
| 341 | }; |
| 342 | |
| 343 | #define RANGE_RESERVED BIT(0) |
| 344 | #define RANGE_HAS_IRQ BIT(1) |
| 345 | #define RANGE_HAS_ACCUMULATOR BIT(2) |
| 346 | #define RANGE_MULTI_QUEUE BIT(3) |
| 347 | |
| 348 | #define for_each_region(kdev, region) \ |
| 349 | list_for_each_entry(region, &kdev->regions, list) |
| 350 | |
| 351 | #define first_region(kdev) \ |
Axel Lin | 4281329 | 2014-10-27 09:37:35 -0700 | [diff] [blame] | 352 | list_first_entry_or_null(&kdev->regions, \ |
| 353 | struct knav_region, list) |
Sandeep Nair | 41f93af | 2014-02-28 10:47:50 -0500 | [diff] [blame] | 354 | |
| 355 | #define for_each_queue_range(kdev, range) \ |
| 356 | list_for_each_entry(range, &kdev->queue_ranges, list) |
| 357 | |
| 358 | #define first_queue_range(kdev) \ |
Axel Lin | 4281329 | 2014-10-27 09:37:35 -0700 | [diff] [blame] | 359 | list_first_entry_or_null(&kdev->queue_ranges, \ |
| 360 | struct knav_range_info, list) |
Sandeep Nair | 41f93af | 2014-02-28 10:47:50 -0500 | [diff] [blame] | 361 | |
| 362 | #define for_each_pool(kdev, pool) \ |
| 363 | list_for_each_entry(pool, &kdev->pools, list) |
| 364 | |
| 365 | #define for_each_pdsp(kdev, pdsp) \ |
| 366 | list_for_each_entry(pdsp, &kdev->pdsps, list) |
| 367 | |
| 368 | #define for_each_qmgr(kdev, qmgr) \ |
| 369 | list_for_each_entry(qmgr, &kdev->qmgrs, list) |
| 370 | |
| 371 | static inline struct knav_pdsp_info * |
| 372 | knav_find_pdsp(struct knav_device *kdev, unsigned pdsp_id) |
| 373 | { |
| 374 | struct knav_pdsp_info *pdsp; |
| 375 | |
| 376 | for_each_pdsp(kdev, pdsp) |
| 377 | if (pdsp_id == pdsp->id) |
| 378 | return pdsp; |
| 379 | return NULL; |
| 380 | } |
| 381 | |
| 382 | extern int knav_init_acc_range(struct knav_device *kdev, |
| 383 | struct device_node *node, |
| 384 | struct knav_range_info *range); |
| 385 | extern void knav_queue_notify(struct knav_queue_inst *inst); |
| 386 | |
| 387 | #endif /* __KNAV_QMSS_H__ */ |